NS&OC OPA Enivironmental Statement Volume 2, Part 5 by Beyond Green

Beyond Green Developments North Sprowston & Old Catton

Appendix 10.1: Assessment Methodology and Criteria

ES Volume 2: Technical Appendices

Appendix 10.1

Assessment Methodology and Criteria

The National Planning Policy Framework (NPPF) sets out the Government’s economic, environmental and social planning policies for England and “these policies articulate the Government’s vision of sustainable development.” In respect of noise, Paragraph 123 of the NPPF states the following:

Planning policies and decisions should aim to: 

avoid noise from giving rise to significant adverse impacts27 on health and quality of life as a result of new development



mitigate and reduce to a minimum other adverse impacts27 on health and quality of life arising from noise from new development, including through the use of conditions,



recognise that development will often create some noise and existing businesses wanting to develop in continuance of their business should not have unreasonable restriction put on them because of changes in nearby land uses since they were established;28 and



identify and protect areas of tranquillity which have remained relatively undisturbed by noise and are prized for their recreational and amenity value for this reason

See Explanatory Note to the Noise Policy Statement for England (Department for the Environment, Food and Rural Affairs).

Subject to the provisions of the Environmental Protection Act 1990 and other relevant law.

The NPPF references and reinforces the March 2010 DEFRA publication, “Noise Policy Statement for England” (NPSE), which states three policy aims, as follows: “Through the effective management and control of environmental, neighbour and neighbourhood noise within the context of Government policy on sustainable development: 

avoid significant adverse impacts on health and quality of life;



mitigate and minimise adverse impacts on health and quality of life; and



where possible, contribute to the improvement of health and quality of life.”

Together, the first two aims require that no significant adverse impact should occur and that, where a noise level which falls between a level which represents the lowest observable adverse effect and a level which represents a significant observed adverse effect, then according to the explanatory notes in the statement:

“… all reasonable steps should be taken to mitigate and minimise adverse effects on health and quality of life whilst also taking into consideration the guiding principles of sustainable development. This does not mean that such effects cannot occur.”

With the above in mind, it is possible to apply objective standards to the assessment of noise and the effect produced by the introduction of a certain noise source on existing receptors, or, in some cases, the impact of noise on new receptors (i.e. new residential properties) may be determined by several methods, as follows:

The effect may be determined by reference to guideline noise values. British Standard (BS) 8233:1999 and World Health Organisation (WHO) “Guidelines for Community Noise” contain such guidelines.

ii)

Alternatively, the impact may be determined by considering the change in noise level that would result from the proposal, in an appropriate noise index for the characteristic of the noise in question. There are various criteria linking change in noise level to effect. This is the method that is suited to, for example, the assessment of noise from road traffic because it is capable of displaying impact to all properties adjacent to a road link irrespective of their distance from the road.

iii)

Another method is to compare the resultant noise level against the background noise level (LA90) of the area. This is the method employed by BS 4142:1997 to determine the likelihood of complaint from noise of an industrial nature. It is best suited to the assessment of steady or pseudo-steady noise.

BS 4142

In BS 4142:1997, however, the scope of the Standard is quoted as describing methods of assessing “..noise level from factories, or industrial premises or fixed installations, or sources of an industrial nature in commercial premises”. This Standard compares the new resultant noise level with the baseline (existing) background noise level (LA90), and is best suited to the assessment of steady noise.

BS 4142 establishes the “likelihood of complaint” as follows:

Establish the background noise levels in terms of the index LA90 at the receptor locations of interest.

ii.

Establish the specific noise level of the source being assessed, in terms of LAeqT (T = 1 hour for day or 5 minutes for night) at the receptor location of interest.

iii.

Add a 5 dB factor to the specific noise level if the source noise is of tonal or intermittent nature so as to attract attention. The resultant noise level is called the rating noise level.

iv.

Compare the rating noise level with the background noise level; the greater the difference between the two, the higher the likelihood of complaint. A difference of around +10 dB indicates that complaints are likely; a difference of +5 dB is of marginal significance; a difference of -10 dB is a positive indication that complaints are unlikely.

The general intent of the planning system is to ensure that a development does not result in “significant environmental impact”. The avoidance of significant impact is achieved, in our judgement, by compliance with the BS 4142 marginal significance criterion of +5 dB.

Change in noise level Changes in noise levels of less than 3 dBA are not perceptible under normal conditions and changes of 10 dBA are equivalent to a doubling of loudness. This guidance has been accepted by inspectors, at inquiry, to encompass changes in noise levels in the index LAeqT. The following table shows the response to changes in noise (known as a Semantic Scale):

Change in noise level

Response

Impact

Imperceptible

None

3–5

Perceptible

Slight

6 – 10

Up to a doubling

Significant

11 – 15

More than a doubling

Substantial

>15

Severe

LAeqT dB

Ref: Manning “Criteria for the Environmental Assessment, Planning and Mitigation of Railway Noise” ProcIOA Vol 20 Part 1 (1998) pp 195 – 202.

Guideline noise values

There are a number of guidance documents that contain recommended guideline noise values. These are discussed below.

British Standard 8233:1999 is principally intended to assist in the design of new dwellings; however, the Standard does state that it may also be used in the assessment of noise from new sources being brought to existing dwellings.

BS 8233:1999 was based on the advice contained in a draft of World Health Organisation document “Guidelines for Community Noise”. This document was released in final form in 2000. World Health Organisation guidance is referenced in the NPSE.

The WHO advice is the most useful, comprehensive, and pertinent advice in this case, because it is not specific to the circumstances of the assessment. Instead, it provides guidance on acceptable limits in, for example, schools, dwellings and offices.

The WHO guideline values are appropriate to what are termed “critical health effects”. This means that the limits are at the lowest noise level that would result in any psychological, physiological or sociological effect. They are, as defined by NPSE, set at the Lowest Observed Adverse Effect Level (LOAEL), but do not define the level above which effects are significant (the Significant Observed Adverse Effect Level, or SOAEL). Whilst the NPSE acknowledges that “it is not possible to have a single objective noise-based measure that defines SOAEL”, it is considered that compliance with the LOAEL should, therefore, be seen as a robust aim.

The WHO Lowest Observed Adverse Effect Level (LOAEL) guideline values are summarised in the following table:

Value

LAeqT = 55 dB

LAeqT = 45 dB

LAeqT = 30 dB

LAMAX = 60 dB

LAMAX = 45 dB

Location

Few seriously annoyed,

Continuous noise,

Daytime and evening.

outdoor living areas

Few moderately annoyed,

LAeqT = 50 dB

LAeqT = 35 dB

Guidance

Daytime and evening.

Continuous noise, outdoor living areas

Acceptable level to avoid speech

Continuous noise,

interference, daytime and evening.

Dwellings, indoors

To avoid sleep disturbance, window open at night.

To avoid sleep disturbance at night.

To avoid sleep disturbance, window open at night.

To avoid sleep disturbance at night.

Continuous noise, outside bedrooms, outdoor values Continuous noise, Bedrooms, indoors Noise peaks, outside bedrooms, Outdoor values Noise peaks, Bedrooms, indoors

For LAeqT criteria the time base (T) given in the documents is 16 hours for daytime limits and 8 hours for night time limits.

Construction site noise

BS 5228 provides a method for predicting noise from construction activity or equipment. It is the accepted Standard employed for the assessment of construction noise and vibration. The Standard also provides a framework for good working practice and guidance on the mitigation of noise by, for example, the selection of plant or use of screens and enclosures.

Annex E of BS 5228 provides guidance on criteria for the assessment of significance of noise effects and outlines three approaches:

That noise levels should not exceed 70 – 75 dB LAeq

ii)

That noise levels should not exceed thresholds determined from existing ambient noise levels: A – 65 dB LAeq (daytime) – where ambient noise levels (rounded to the nearest 5 dB) are less than this value. B – 70 dB LAeq (daytime) if ambient noise levels (rounded to the nearest 5 dB) are the same as the threshold A value C – 75 dB LAeq (daytime) where ambient noise levels (rounded to the nearest 5 dB) are above the threshold A value.

iii)

That noise levels are deemed to be significant if the total noise (ambient + construction noise) exceeds the pre-construction ambient noise level by 5 dB or more, subject to lower cut-off values of 65 dB (LAeq, Period).

The standard suggests evening limits 5 dB lower than daytime limits and a further reduction of 5 dB for night-time activity and that noise levels may need to be as low as LAeq1hr = 40 dB at night to avoid sleep disturbance and that noise limits during the evening may have to be as much as 10 dBA below the daytime limit.

BS 5228 explains the statutory control available to citizens and local authorities. In particular the BS notes that “Section 60 and 61 of the Control of Pollution Act 1974 gives local authorities powers for controlling noise and vibration arising from construction and demolition works on any building or engineering sites.”

Using the above guidance, in our judgement, a reasonable limit for construction noise is LAeq,day = 75dB.

Noise affecting proposed residential developments

The proposal is an outline planning application. It is therefore necessary to establish design principles in relation to the layout and design of the development. A Development Framework Plan was developed by the architect following initial computer modelling. It is not a detailed design and will be subject to further development. However, the following principles were followed and will continue to be so.

Planning Policy Guidance (PPG) 24 (now revoked by the NPPF) introduced the concept of Noise Exposure Categories (NECs) which were widely used in planning for residential sites. Whilst out of date and in need of revision in that they only considered external noise levels without development, these NECs were of particular use in establishing “zones” on large sites where, for example, development could be acceptable with mitigation, or where development would not usually be acceptable. We have taken the NEC concept and developed it to provide a design approach for this site to provide a guide for the architect in developing an indicative layout. Our advice, based on a sensible approach to achieving an acceptable “end result” is as follows. Generally, there is a hierarchy of noise control* that should be considered in all cases, and the layout should demonstrate that the following logical process, which would represent good design, has been followed as far as possible:

1. Assess the site to identify and quantify significant noise sources 2. Decide noise criteria and limits for spaces in and around the building(s) 3. Evaluate the acoustic and cost effectiveness of design and layout options to manage noise impacts to acceptable levels 4. Consider using sound insulation of building envelope in order to achieve acceptable acoustic conditions after attenuation by other options has been considered and does not perform adequately and/or is not cost effective. *

Source:

Fiumicelli & Gayler – PPG 24 and Brownfield Redevelopment – Conflicts and Solutions. Can PPS 24 fare any better ? Proc.IOA. Vol 27 Pt 7 2005).

In other words, using the fabric of the building (i.e. acoustic glazing) to control noise should only be considered once other design and layout options have been considered.

The “bands” below would only apply to large open sites where there is the possibility of addressing noise by layout/buffer zones etc. Where tight urban brownfield sites are being considered, the hierarchy of noise control above should be followed, but the external noise level is much less of an issue (especially in developments of apartments with no gardens, for example). The site at Norwich can be considered to be a large greenfield site, so the advice below has been followed by the architect in developing the Development Framework Plan.

The bands below are based on the following target levels:

Gardens

LAeqT

50 - 55 dB

Living rooms

LAeqT

35 dB

Bedrooms

LAeqT

30 dB

LAMAX

45 dB

It has been assumed that a maximum realistically achievable overall sound reduction would be 40 dB (straight level difference from an external façade level) from acoustic glazing/ventilation. It is appreciated that more might be achievable but such systems are more appropriate in urban situations than they are in large open-site situations such as this and they shouldn’t be relied upon if avoidable (see hierarchy of noise control above). The design “bands” or “zones” are detailed below. DAYTIME Level (Free-Field)

Advice

Rationale

< 50 dB LAeq, 16Hr

Acceptable in all senses, no mitigation required

50 – 60 dB LAeq, 16Hr

Standard construction and solid garden fencing will achieve acceptable levels. No special mitigation required, but layout should be considered to minimise exposure to less than 55 dB where possible

60 – 70 dB LAeq, 16Hr

Mitigation required consider layout and room arrangement to minimise exposure. Acoustic glazing and ventilation likely at the higher end of the band and gardens may need to be shielded by the built form of the development where possible. Avoid houses or gardens in this area as far as possible, unless mitigation via bunding or high acoustic screening to the site boundary is available.

WHO level below which there is no moderate annoyance. 15dB reduction for open window = 35 dB in living room. Standard double glazing would reduce top end level to 30 to 35 in living rooms. 5 to 10 dB reduction may be possible by solid garden fences to achieve garden target levels of 50 to 55 dB WHO level below which there is no serious annoyance. 15 dB reduction from that for open window would give 40 dB (BS8233 “Reasonable”) inside (i.e. 5dB flexibility). Layout to shield gardens to achieve 55 dB ought to be possible with care. 40 dB loss from acoustic glazing would achieve target levels inside.

> 70 dB LAeq, 16 Hr

>15 dB screening to gardens is required and this is probably the most achievable from the built form (i.e screening gardens by arrangement of the buildings). At >70 dB externally, it will be difficult to achieve internal targets without special acoustic systems.

NIGHT TIME (LAeq, 8Hr) Level (Free-Field) < 45 dB LAeq, 8Hr < 60 dB LAMAX

Advice Acceptable in all senses, no mitigation required

45 – 55 dB LAeq, 8Hr 60 – 70 dB LAMAX

Standard construction. No special mitigation required, but layout should be considered to minimise exposure to less than 50 dB LAeq and 60 dB LAMAX where possible.

55 – 70 dB LAeq, 8Hr 70 – 80 dB LAMAX

Mitigation required consider layout and room arrangement to minimise exposure. Acoustic glazing and ventilation likely at the higher end of the band. Avoid houses in this area as far as possible, unless mitigation via bunding or high acoustic screening to the site boundary is available.

> 70 dB LAeq, 8 Hr > 80 dB LAMAX

Rationale 15dB reduction for open window = 30 dB LAeq and 45 dB LAMAX in bedroom. Standard double glazing would reduce top end level to less than 30 dB LAeq and 45 dB LAMAX in bedrooms. 15 dB reduction for open window from 50 dB LAeq external would give 35 dB (BS8233 “Reasonable”) inside (i.e. 5dB flexibility). Similarly from 60 dB LAMAX to achieve 45 dB LAMAX internally. At the top end, 40 dB loss from acoustic glazing would achieve target levels inside.

At >70 dB LAeq/80 dB LAMAX externally, it will be difficult to achieve internal targets without special acoustic systems.

Assessment Approach

In view of the above, the noise sources have been assessed as follows:

Noise Type

Assessment Approach

Construction noise

Fixed guidance

Future Noise

Operational â&#x20AC;&#x201C;

Existing

Change in noise level

Receptors Existing Noise Receptors

and â&#x20AC;&#x201C;

Future New

Fixed guidance

Beyond Green Developments North Sprowston & Old Catton

Appendix 10.2: Noise Survey Results

ES Volume 2: Technical Appendices

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 56.0 (2012/04/03 11:00:00.00) 49.3 (2012/04/03 11:15:00.00) 54.6 (2012/04/03 11:30:00.00) 57.8 (2012/04/03 11:45:00.00) 61.1 (2012/04/03 12:00:00.00) 49.1 (2012/04/03 12:15:00.00) 52.5 (2012/04/03 12:30:00.00) 55.8 (2012/04/03 12:45:00.00) 55.8 (2012/04/03 13:00:00.00) 47.7 (2012/04/03 13:15:00.00) 49.6 (2012/04/03 13:30:00.00) 59.9 (2012/04/03 13:45:00.00) 57.5 (2012/04/03 14:00:00.00) 54.0 (2012/04/03 14:15:00.00) 48.7 (2012/04/03 14:30:00.00) 58.4 (2012/04/03 14:45:00.00) 50.8 (2012/04/03 15:00:00.00) 49.3 (2012/04/03 15:15:00.00) 51.9 (2012/04/03 15:30:00.00) 55.3 (2012/04/03 15:45:00.00) 52.6 (2012/04/03 16:00:00.00) 51.4 (2012/04/03 16:15:00.00) 61.2 (2012/04/03 16:30:00.00) 53.8 (2012/04/03 16:45:00.00) 59.3 (2012/04/03 17:00:00.00) 57.1 (2012/04/03 17:15:00.00) 58.2 (2012/04/03 17:30:00.00) 55.7 (2012/04/03 17:45:00.00) 48.1 (2012/04/03 18:00:00.00) 51.1 (2012/04/03 18:15:00.00) 43.2 (2012/04/03 18:30:00.00) 44.0 (2012/04/03 18:45:00.00) 57.9 (2012/04/03 19:00:00.00) 42.3 (2012/04/03 19:15:00.00) 51.9 (2012/04/03 19:30:00.00) 55.8 (2012/04/03 19:45:00.00) 37.0 (2012/04/03 20:00:00.00) 37.4 (2012/04/03 20:15:00.00) 36.6 (2012/04/03 20:30:00.00) 44.6 (2012/04/03 20:45:00.00) 35.3 (2012/04/03 21:00:00.00) 34.3 (2012/04/03 21:15:00.00) 33.9 (2012/04/03 21:30:00.00) 33.6 (2012/04/03 21:45:00.00) 34.7 (2012/04/03 22:00:00.00) 33.6 (2012/04/03 22:15:00.00) 32.0 (2012/04/03 22:30:00.00) 33.9 (2012/04/03 22:45:00.00) 34.3 (2012/04/03 23:00:00.00) 32.0 (2012/04/03 23:15:00.00) 30.3 (2012/04/03 23:30:00.00) 29.5 (2012/04/03 23:45:00.00) 39.1 (2012/04/05 00:00:00.00) 40.5 (2012/04/05 00:15:00.00) 40.0 (2012/04/05 00:30:00.00) 39.2 (2012/04/05 00:45:00.00) 37.9 (2012/04/05 01:00:00.00) 36.1 (2012/04/05 01:15:00.00) 36.8 (2012/04/05 01:30:00.00) 38.4 (2012/04/05 01:45:00.00) 36.2 (2012/04/05 02:00:00.00) 36.4 (2012/04/05 02:15:00.00) 32.8 (2012/04/05 02:30:00.00) 36.5 (2012/04/05 02:45:00.00) 36.9 (2012/04/05 03:00:00.00) 41.4 (2012/04/05 03:15:00.00) 41.5 (2012/04/05 03:30:00.00) 39.5 (2012/04/05 03:45:00.00) 40.6 (2012/04/05 04:00:00.00) 42.6 (2012/04/05 04:15:00.00) 42.1 (2012/04/05 04:30:00.00) 42.2 (2012/04/05 04:45:00.00) 44.4 (2012/04/05 05:00:00.00) 47.9 (2012/04/05 05:15:00.00) 46.5 (2012/04/05 05:30:00.00) 51.9 (2012/04/05 05:45:00.00) 64.6 (2012/04/05 06:00:00.00) 59.9 (2012/04/05 06:15:00.00) 55.9 (2012/04/05 06:30:00.00) 55.0 (2012/04/05 06:45:00.00) 55.9 (2012/04/05 07:00:00.00)

LA90 37.3 37.4 35.8 43.7 44.6 37.7 37.8 38.8 37.7 35.2 35.8 48.6 45.0 35.4 35.3 37.3 38.3 38.6 37.8 36.8 37.9 36.5 39.5 41.3 44.3 42.9 42.9 40.2 38.7 39.4 37.1 34.7 34.4 34.7 34.0 35.2 35.2 35.5 34.6 34.2 33.8 32.9 31.5 31.6 32.8 31.0 29.7 31.9 30.5 28.7 27.8 26.7 32.6 33.4 33.7 31.1 30.9 30.5 28.6 32.5 30.2 26.9 27.3 28.3 31.6 33.1 35.5 34.1 35.2 36.6 35.0 35.8 36.6 37.9 39.1 39.8 41.6 41.0 41.4 42.9 44.3

LAMAX 76.4 80.6 81.9 80.3 77.3 82.6 80.7 80.1 75.1 81.8 83.0 82.7 74.0 82.4 81.9 82.9 73.2 81.3 81.5 83.1 70.5 82.0 83.8 82.9 80.5 84.0 84.0 85.1 69.3 69.5 73.6 66.9 75.2 62.2 70.4 79.3 45.9 55.3 47.1 65.9 42.4 43.2 47.4 46.1 45.7 50.0 43.7 49.4 50.8 48.6 40.8 40.6 49.9 50.8 52.9 50.0 51.7 46.7 52.5 49.7 45.4 50.0 40.5 49.0 45.8 55.8 51.2 50.0 50.8 53.8 60.1 66.1 75.1 62.6 66.6 85.1 87.7 88.2 89.5 85.2 75.1

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 57.8 (2012/04/05 07:15:00.00) 60.5 (2012/04/05 07:30:00.00) 57.1 (2012/04/05 07:45:00.00) 54.6 (2012/04/05 08:00:00.00) 57.1 (2012/04/05 08:15:00.00) 55.4 (2012/04/05 08:30:00.00) 57.8 (2012/04/05 08:45:00.00) 55.3 (2012/04/05 09:00:00.00) 62.0 (2012/04/05 09:15:00.00) 62.8 (2012/04/05 09:30:00.00) 56.5 (2012/04/05 09:45:00.00) 57.1 (2012/04/05 10:00:00.00) 58.5 (2012/04/05 10:15:00.00) 62.9 (2012/04/05 10:30:00.00) 54.2 (2012/04/05 10:45:00.00) 55.0 (2012/04/05 11:00:00.00) 57.1 (2012/04/05 11:15:00.00) 57.6 (2012/04/05 11:30:00.00) 55.3 (2012/04/05 11:45:00.00) 55.0 (2012/04/05 12:00:00.00) 54.9 (2012/04/05 12:15:00.00) 58.1 (2012/04/05 12:30:00.00) 57.4 (2012/04/05 12:45:00.00) 57.8 (2012/04/05 13:00:00.00) 58.2 (2012/04/05 13:15:00.00) 56.7 (2012/04/05 13:30:00.00) 54.2 (2012/04/05 13:45:00.00) 58.2 (2012/04/05 14:00:00.00) 54.5 (2012/04/05 14:15:00.00) 57.1 (2012/04/05 14:30:00.00) 55.3 (2012/04/05 14:45:00.00) 49.6 (2012/04/05 15:00:00.00) 55.6 (2012/04/05 15:15:00.00) 58.7 (2012/04/05 15:30:00.00) 52.2 (2012/04/05 15:45:00.00) 53.1 (2012/04/05 16:00:00.00) 59.9 (2012/04/05 16:15:00.00) 55.1 (2012/04/05 16:30:00.00) 54.5 (2012/04/05 16:45:00.00) 50.8 (2012/04/05 17:00:00.00) 57.9 (2012/04/05 17:15:00.00) 55.7 (2012/04/05 17:30:00.00) 54.2 (2012/04/05 17:45:00.00) 48.7 (2012/04/05 18:00:00.00) 53.4 (2012/04/05 18:15:00.00) 37.1 (2012/04/05 18:30:00.00) 56.1 (2012/04/05 18:45:00.00) 37.2 (2012/04/05 19:00:00.00) 57.1 (2012/04/05 19:15:00.00) 37.8 (2012/04/05 19:30:00.00) 41.0 (2012/04/05 19:45:00.00) 48.7 (2012/04/05 20:00:00.00) 35.3 (2012/04/05 20:15:00.00) 34.6 (2012/04/05 20:30:00.00) 43.5 (2012/04/05 20:45:00.00) 35.1 (2012/04/05 21:00:00.00) 35.3 (2012/04/05 21:15:00.00) 34.6 (2012/04/05 21:30:00.00) 34.9 (2012/04/05 21:45:00.00) 35.2 (2012/04/05 22:00:00.00) 33.7 (2012/04/05 22:15:00.00) 33.1 (2012/04/05 22:30:00.00) 33.2 (2012/04/05 22:45:00.00) 32.5 (2012/04/05 23:00:00.00) 30.6 (2012/04/05 23:15:00.00) 31.5 (2012/04/05 23:30:00.00) 27.9 (2012/04/05 23:45:00.00) 39.1 (2012/04/05 00:00:00.00) 40.5 (2012/04/05 00:15:00.00) 40.0 (2012/04/05 00:30:00.00) 39.2 (2012/04/05 00:45:00.00) 37.9 (2012/04/05 01:00:00.00) 36.1 (2012/04/05 01:15:00.00) 36.8 (2012/04/05 01:30:00.00) 38.4 (2012/04/05 01:45:00.00) 36.2 (2012/04/05 02:00:00.00) 36.4 (2012/04/05 02:15:00.00) 32.8 (2012/04/05 02:30:00.00) 36.5 (2012/04/05 02:45:00.00) 36.9 (2012/04/05 03:00:00.00) 41.4 (2012/04/05 03:15:00.00)

LA90 45.4 42.8 41.8 42.2 41.9 41.4 42.1 41.6 42.5 42.0 41.3 40.2 40.9 40.4 38.9 39.9 40.5 39.7 39.3 41.7 40.2 39.7 42.5 39.6 39.6 37.1 37.2 38.0 37.5 37.7 38.2 37.4 37.3 37.7 37.4 38.2 38.1 36.9 37.0 36.9 37.0 37.0 36.5 34.9 35.0 33.6 35.0 33.5 33.7 33.1 32.8 31.3 31.6 31.6 32.6 32.1 32.4 31.3 29.9 31.0 29.1 28.5 26.6 26.0 24.0 24.7 21.9 32.6 33.4 33.7 31.1 30.9 30.5 28.6 32.5 30.2 26.9 27.3 28.3 31.6 33.1

LAMAX 88.4 87.9 87.5 86.3 92.1 88.7 92.0 89.0 89.3 86.8 88.4 88.3 89.5 90.0 86.5 86.3 90.8 89.0 87.4 84.6 86.8 87.4 87.2 84.4 87.9 86.1 86.6 78.8 86.4 87.4 86.3 70.4 87.1 86.2 85.9 81.7 86.5 87.0 87.1 83.3 86.2 85.7 86.9 82.2 83.3 62.1 78.7 65.2 77.0 52.8 56.1 70.5 43.6 47.5 62.6 48.2 41.5 43.3 44.3 42.3 43.2 43.1 47.8 42.2 41.5 42.6 38.6 49.9 50.8 52.9 50.0 51.7 46.7 52.5 49.7 45.4 50.0 40.5 49.0 45.8 55.8

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 41.5 (2012/04/05 03:30:00.00) 39.5 (2012/04/05 03:45:00.00) 40.6 (2012/04/05 04:00:00.00) 42.6 (2012/04/05 04:15:00.00) 42.1 (2012/04/05 04:30:00.00) 42.2 (2012/04/05 04:45:00.00) 44.4 (2012/04/05 05:00:00.00) 47.9 (2012/04/05 05:15:00.00) 46.5 (2012/04/05 05:30:00.00) 51.9 (2012/04/05 05:45:00.00) 64.6 (2012/04/05 06:00:00.00) 59.9 (2012/04/05 06:15:00.00) 55.9 (2012/04/05 06:30:00.00) 55.0 (2012/04/05 06:45:00.00) 55.9 (2012/04/05 07:00:00.00) 57.8 (2012/04/05 07:15:00.00) 60.5 (2012/04/05 07:30:00.00) 57.1 (2012/04/05 07:45:00.00) 54.6 (2012/04/05 08:00:00.00) 57.1 (2012/04/05 08:15:00.00) 55.4 (2012/04/05 08:30:00.00) 57.8 (2012/04/05 08:45:00.00) 55.3 (2012/04/05 09:00:00.00) 62.0 (2012/04/05 09:15:00.00) 62.8 (2012/04/05 09:30:00.00) 56.5 (2012/04/05 09:45:00.00) 57.1 (2012/04/05 10:00:00.00) 58.5 (2012/04/05 10:15:00.00) 62.9 (2012/04/05 10:30:00.00) 54.2 (2012/04/05 10:45:00.00) 55.0 (2012/04/05 11:00:00.00) 57.1 (2012/04/05 11:15:00.00) 57.6 (2012/04/05 11:30:00.00) 55.3 (2012/04/05 11:45:00.00) 55.0 (2012/04/05 12:00:00.00) 54.9 (2012/04/05 12:15:00.00) 58.1 (2012/04/05 12:30:00.00) 57.4 (2012/04/05 12:45:00.00) 57.8 (2012/04/05 13:00:00.00) 58.2 (2012/04/05 13:15:00.00) 56.7 (2012/04/05 13:30:00.00) 54.2 (2012/04/05 13:45:00.00) 58.2 (2012/04/05 14:00:00.00) 54.5 (2012/04/05 14:15:00.00) 57.1 (2012/04/05 14:30:00.00) 55.3 (2012/04/05 14:45:00.00) 49.6 (2012/04/05 15:00:00.00) 55.6 (2012/04/05 15:15:00.00) 58.7 (2012/04/05 15:30:00.00) 52.2 (2012/04/05 15:45:00.00) 53.1 (2012/04/05 16:00:00.00) 59.9 (2012/04/05 16:15:00.00) 55.1 (2012/04/05 16:30:00.00) 54.5 (2012/04/05 16:45:00.00) 50.8 (2012/04/05 17:00:00.00) 57.9 (2012/04/05 17:15:00.00) 55.7 (2012/04/05 17:30:00.00) 54.2 (2012/04/05 17:45:00.00) 48.7 (2012/04/05 18:00:00.00) 53.4 (2012/04/05 18:15:00.00) 37.1 (2012/04/05 18:30:00.00) 56.1 (2012/04/05 18:45:00.00) 37.2 (2012/04/05 19:00:00.00) 57.1 (2012/04/05 19:15:00.00) 37.8 (2012/04/05 19:30:00.00) 41.0 (2012/04/05 19:45:00.00) 48.7 (2012/04/05 20:00:00.00) 35.3 (2012/04/05 20:15:00.00) 34.6 (2012/04/05 20:30:00.00) 43.5 (2012/04/05 20:45:00.00) 35.1 (2012/04/05 21:00:00.00) 35.3 (2012/04/05 21:15:00.00) 34.6 (2012/04/05 21:30:00.00) 34.9 (2012/04/05 21:45:00.00) 35.2 (2012/04/05 22:00:00.00) 33.7 (2012/04/05 22:15:00.00) 33.1 (2012/04/05 22:30:00.00) 33.2 (2012/04/05 22:45:00.00) 32.5 (2012/04/05 23:00:00.00) 30.6 (2012/04/05 23:15:00.00) 31.5 (2012/04/05 23:30:00.00)

LA90 35.5 34.1 35.2 36.6 35.0 35.8 36.6 37.9 39.1 39.8 41.6 41.0 41.4 42.9 44.3 45.4 42.8 41.8 42.2 41.9 41.4 42.1 41.6 42.5 42.0 41.3 40.2 40.9 40.4 38.9 39.9 40.5 39.7 39.3 41.7 40.2 39.7 42.5 39.6 39.6 37.1 37.2 38.0 37.5 37.7 38.2 37.4 37.3 37.7 37.4 38.2 38.1 36.9 37.0 36.9 37.0 37.0 36.5 34.9 35.0 33.6 35.0 33.5 33.7 33.1 32.8 31.3 31.6 31.6 32.6 32.1 32.4 31.3 29.9 31.0 29.1 28.5 26.6 26.0 24.0 24.7

LAMAX 51.2 50.0 50.8 53.8 60.1 66.1 75.1 62.6 66.6 85.1 87.7 88.2 89.5 85.2 75.1 88.4 87.9 87.5 86.3 92.1 88.7 92.0 89.0 89.3 86.8 88.4 88.3 89.5 90.0 86.5 86.3 90.8 89.0 87.4 84.6 86.8 87.4 87.2 84.4 87.9 86.1 86.6 78.8 86.4 87.4 86.3 70.4 87.1 86.2 85.9 81.7 86.5 87.0 87.1 83.3 86.2 85.7 86.9 82.2 83.3 62.1 78.7 65.2 77.0 52.8 56.1 70.5 43.6 47.5 62.6 48.2 41.5 43.3 44.3 42.3 43.2 43.1 47.8 42.2 41.5 42.6

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 27.9 (2012/04/05 23:45:00.00) 29.1 (2012/04/06 00:00:00.00) 30.0 (2012/04/06 00:15:00.00) 28.4 (2012/04/06 00:30:00.00) 27.6 (2012/04/06 00:45:00.00) 29.7 (2012/04/06 01:00:00.00) 29.3 (2012/04/06 01:15:00.00) 28.9 (2012/04/06 01:30:00.00) 29.0 (2012/04/06 01:45:00.00) 30.7 (2012/04/06 02:00:00.00) 27.0 (2012/04/06 02:15:00.00) 29.7 (2012/04/06 02:30:00.00) 30.6 (2012/04/06 02:45:00.00) 31.3 (2012/04/06 03:00:00.00) 29.2 (2012/04/06 03:15:00.00) 28.9 (2012/04/06 03:30:00.00) 30.4 (2012/04/06 03:45:00.00) 32.1 (2012/04/06 04:00:00.00) 36.8 (2012/04/06 04:15:00.00) 41.5 (2012/04/06 04:30:00.00) 48.2 (2012/04/06 04:45:00.00) 47.1 (2012/04/06 05:00:00.00) 50.2 (2012/04/06 05:15:00.00) 62.8 (2012/04/06 05:30:00.00) 62.1 (2012/04/06 05:45:00.00) 59.2 (2012/04/06 06:00:00.00) 64.8 (2012/04/06 06:15:00.00) 48.6 (2012/04/06 06:30:00.00) 54.6 (2012/04/06 06:45:00.00) 58.8 (2012/04/06 07:00:00.00) 55.2 (2012/04/06 07:15:00.00) 59.7 (2012/04/06 07:30:00.00) 53.1 (2012/04/06 07:45:00.00) 53.5 (2012/04/06 08:00:00.00) 55.2 (2012/04/06 08:15:00.00) 55.9 (2012/04/06 08:30:00.00) 57.0 (2012/04/06 08:45:00.00) 48.3 (2012/04/06 09:00:00.00) 49.6 (2012/04/06 09:15:00.00) 56.2 (2012/04/06 09:30:00.00) 51.4 (2012/04/06 09:45:00.00) 57.5 (2012/04/06 10:00:00.00) 48.5 (2012/04/06 10:15:00.00) 52.5 (2012/04/06 10:30:00.00) 48.6 (2012/04/06 10:45:00.00) 56.2 (2012/04/06 11:00:00.00) 61.4 (2012/04/06 11:15:00.00) 52.8 (2012/04/06 11:30:00.00) 51.6 (2012/04/06 11:45:00.00) 48.9 (2012/04/06 12:00:00.00) 52.5 (2012/04/06 12:15:00.00) 51.3 (2012/04/06 12:30:00.00) 52.0 (2012/04/06 12:45:00.00) 53.0 (2012/04/06 13:00:00.00) 51.1 (2012/04/06 13:15:00.00) 48.6 (2012/04/06 13:30:00.00) 56.9 (2012/04/06 13:45:00.00) 58.4 (2012/04/06 14:00:00.00) 57.5 (2012/04/06 14:15:00.00) 52.3 (2012/04/06 14:30:00.00) 54.8 (2012/04/06 14:45:00.00) 50.8 (2012/04/06 15:00:00.00) 52.3 (2012/04/06 15:15:00.00) 52.9 (2012/04/06 15:30:00.00) 58.8 (2012/04/06 15:45:00.00) 49.8 (2012/04/06 16:00:00.00) 55.2 (2012/04/06 16:15:00.00) 40.6 (2012/04/06 16:30:00.00) 55.0 (2012/04/06 16:45:00.00) 56.6 (2012/04/06 17:00:00.00) 58.2 (2012/04/06 17:15:00.00) 58.9 (2012/04/06 17:30:00.00) 56.6 (2012/04/06 17:45:00.00) 53.5 (2012/04/06 18:00:00.00) 59.4 (2012/04/06 18:15:00.00) 56.7 (2012/04/06 18:30:00.00) 56.3 (2012/04/06 18:45:00.00) 57.2 (2012/04/06 19:00:00.00) 57.5 (2012/04/06 19:15:00.00) 55.2 (2012/04/06 19:30:00.00) 53.9 (2012/04/06 19:45:00.00)

LA90 21.9 24.1 23.5 21.8 23.2 23.8 23.7 23.6 23.9 24.3 22.9 24.3 24.8 24.1 25.1 25.7 27.3 28.4 32.4 35.2 31.7 34.8 37.0 38.1 56.5 40.8 39.1 40.9 39.8 48.1 46.2 44.1 40.3 38.5 36.8 41.5 39.9 35.5 34.7 38.8 39.2 42.7 35.1 37.8 35.3 37.6 46.2 42.0 40.0 34.2 35.0 39.0 37.3 36.9 40.4 35.3 41.4 36.8 41.0 41.6 38.8 36.3 40.2 38.2 37.3 35.0 40.0 32.1 32.9 38.7 37.8 37.7 42.1 37.0 43.2 37.5 38.7 34.1 36.2 35.7 34.8

LAMAX 38.6 44.7 42.2 44.1 39.9 44.6 40.6 38.9 38.3 45.0 40.4 39.4 42.8 49.6 43.6 42.6 40.7 47.0 51.1 65.6 67.4 69.1 64.0 85.9 74.6 85.0 83.4 70.8 84.3 84.5 84.8 76.0 83.4 84.2 83.3 73.2 82.2 81.7 84.2 74.1 82.4 80.5 82.6 72.5 83.9 85.1 84.7 68.1 83.2 83.1 84.0 73.7 84.3 81.8 84.4 70.3 84.0 83.5 82.9 67.7 83.9 84.6 84.7 73.4 83.8 84.2 84.3 56.9 84.2 84.2 84.2 77.5 84.6 84.4 84.8 77.1 74.8 77.4 76.2 74.2 74.7

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 35.0 (2012/04/06 20:00:00.00) 56.4 (2012/04/06 20:15:00.00) 59.5 (2012/04/06 20:30:00.00) 31.9 (2012/04/06 20:45:00.00) 32.5 (2012/04/06 21:00:00.00) 31.8 (2012/04/06 21:15:00.00) 30.2 (2012/04/06 21:30:00.00) 29.8 (2012/04/06 21:45:00.00) 29.7 (2012/04/06 22:00:00.00) 28.8 (2012/04/06 22:15:00.00) 29.2 (2012/04/06 22:30:00.00) 29.6 (2012/04/06 22:45:00.00) 29.1 (2012/04/06 23:00:00.00) 29.7 (2012/04/06 23:15:00.00) 31.8 (2012/04/06 23:30:00.00) 30.8 (2012/04/06 23:45:00.00) 29.1 (2012/04/07 00:00:00.00) 27.6 (2012/04/07 00:15:00.00) 27.4 (2012/04/07 00:30:00.00) 29.7 (2012/04/07 00:45:00.00) 28.3 (2012/04/07 01:00:00.00) 27.7 (2012/04/07 01:15:00.00) 26.4 (2012/04/07 01:30:00.00) 25.8 (2012/04/07 01:45:00.00) 27.0 (2012/04/07 02:00:00.00) 27.4 (2012/04/07 02:15:00.00) 25.9 (2012/04/07 02:30:00.00) 26.1 (2012/04/07 02:45:00.00) 25.5 (2012/04/07 03:00:00.00) 25.5 (2012/04/07 03:15:00.00) 25.5 (2012/04/07 03:30:00.00) 26.5 (2012/04/07 03:45:00.00) 28.4 (2012/04/07 04:00:00.00) 34.4 (2012/04/07 04:15:00.00) 36.5 (2012/04/07 04:30:00.00) 42.4 (2012/04/07 04:45:00.00) 42.5 (2012/04/07 05:00:00.00) 63.2 (2012/04/07 05:15:00.00) 48.7 (2012/04/07 05:30:00.00) 52.0 (2012/04/07 05:45:00.00) 53.1 (2012/04/07 06:00:00.00) 49.8 (2012/04/07 06:15:00.00) 59.1 (2012/04/07 06:30:00.00) 58.8 (2012/04/07 06:45:00.00) 60.4 (2012/04/07 07:00:00.00) 55.9 (2012/04/07 07:15:00.00) 56.9 (2012/04/07 07:30:00.00) 52.7 (2012/04/07 07:45:00.00) 53.7 (2012/04/07 08:00:00.00) 53.2 (2012/04/07 08:15:00.00) 56.8 (2012/04/07 08:30:00.00) 55.1 (2012/04/07 08:45:00.00) 54.1 (2012/04/07 09:00:00.00) 54.8 (2012/04/07 09:15:00.00) 58.2 (2012/04/07 09:30:00.00) 56.2 (2012/04/07 09:45:00.00) 55.9 (2012/04/07 10:00:00.00) 53.7 (2012/04/07 10:15:00.00) 44.9 (2012/04/07 10:30:00.00) 53.0 (2012/04/07 10:45:00.00) 53.5 (2012/04/07 11:00:00.00) 56.7 (2012/04/07 11:15:00.00) 57.6 (2012/04/07 11:30:00.00) 57.5 (2012/04/07 11:45:00.00) 62.1 (2012/04/07 12:00:00.00) 51.9 (2012/04/07 12:15:00.00) 52.7 (2012/04/07 12:30:00.00) 53.1 (2012/04/07 12:45:00.00) 59.0 (2012/04/07 13:00:00.00) 52.5 (2012/04/07 13:15:00.00) 56.2 (2012/04/07 13:30:00.00) 56.2 (2012/04/07 13:45:00.00) 50.9 (2012/04/07 14:00:00.00) 50.6 (2012/04/07 14:15:00.00) 44.3 (2012/04/07 14:30:00.00) 50.9 (2012/04/07 14:45:00.00) 49.6 (2012/04/07 15:00:00.00) 53.0 (2012/04/07 15:15:00.00) 44.4 (2012/04/07 15:30:00.00) 53.2 (2012/04/07 15:45:00.00) 50.0 (2012/04/07 16:00:00.00)

LA90 33.8 34.5 37.6 30.0 29.9 30.1 28.5 28.3 27.8 26.6 26.3 25.8 25.6 26.4 26.4 25.6 25.5 23.3 23.5 23.2 23.5 23.5 22.8 22.7 22.3 21.9 20.3 20.0 22.8 22.5 21.4 21.8 24.0 26.8 31.5 31.8 32.6 33.0 34.8 38.8 37.0 33.6 32.8 34.8 35.1 33.9 33.0 34.4 35.4 34.6 34.7 35.9 37.5 38.2 40.8 39.0 37.0 36.6 35.1 37.7 37.7 38.1 37.4 38.8 35.3 35.2 35.5 35.2 35.4 34.2 35.5 35.2 35.6 35.9 34.7 36.1 36.6 36.3 38.6 39.8 37.1

LAMAX 43.5 74.0 75.3 43.1 43.5 48.1 41.4 41.4 48.7 41.9 40.2 52.3 48.9 48.2 46.7 61.8 51.7 41.5 40.6 54.1 41.2 46.6 42.8 54.9 42.2 43.2 41.2 44.5 34.0 35.5 37.1 40.7 40.9 53.1 55.0 58.8 61.0 87.4 72.4 73.1 85.5 83.9 81.6 86.8 86.3 85.3 75.9 87.4 86.0 85.0 83.3 87.3 85.9 85.5 75.0 84.5 85.0 85.6 78.5 85.5 85.1 86.3 81.2 85.5 85.6 86.1 72.6 88.6 84.9 85.9 77.8 84.6 85.2 83.7 72.5 84.6 83.7 86.1 62.1 85.4 84.9

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 60.3 (2012/04/07 16:15:00.00) 42.8 (2012/04/07 16:30:00.00) 49.7 (2012/04/07 16:45:00.00) 53.5 (2012/04/07 17:00:00.00) 52.4 (2012/04/07 17:15:00.00) 45.8 (2012/04/07 17:30:00.00) 60.6 (2012/04/07 17:45:00.00) 52.8 (2012/04/07 18:00:00.00) 56.7 (2012/04/07 18:15:00.00) 57.4 (2012/04/07 18:30:00.00) 52.5 (2012/04/07 18:45:00.00) 38.0 (2012/04/07 19:00:00.00) 41.7 (2012/04/07 19:15:00.00) 31.8 (2012/04/07 19:30:00.00) 53.7 (2012/04/07 19:45:00.00) 31.9 (2012/04/07 20:00:00.00) 42.1 (2012/04/07 20:15:00.00) 32.4 (2012/04/07 20:30:00.00) 40.5 (2012/04/07 20:45:00.00) 34.3 (2012/04/07 21:00:00.00) 32.6 (2012/04/07 21:15:00.00) 32.9 (2012/04/07 21:30:00.00) 31.2 (2012/04/07 21:45:00.00) 33.0 (2012/04/07 22:00:00.00) 33.6 (2012/04/07 22:15:00.00) 33.3 (2012/04/07 22:30:00.00) 31.3 (2012/04/07 22:45:00.00) 33.2 (2012/04/07 23:00:00.00) 32.4 (2012/04/07 23:15:00.00) 30.4 (2012/04/07 23:30:00.00) 30.9 (2012/04/07 23:45:00.00) 31.4 (2012/04/08 00:00:00.00) 32.6 (2012/04/08 00:15:00.00) 32.0 (2012/04/08 00:30:00.00) 32.0 (2012/04/08 00:45:00.00) 31.3 (2012/04/08 01:00:00.00) 31.8 (2012/04/08 01:15:00.00) 32.8 (2012/04/08 01:30:00.00) 32.7 (2012/04/08 01:45:00.00) 32.8 (2012/04/08 02:00:00.00) 33.5 (2012/04/08 02:15:00.00) 34.0 (2012/04/08 02:30:00.00) 31.9 (2012/04/08 02:45:00.00) 32.7 (2012/04/08 03:00:00.00) 35.5 (2012/04/08 03:15:00.00) 33.9 (2012/04/08 03:30:00.00) 35.6 (2012/04/08 03:45:00.00) 34.9 (2012/04/08 04:00:00.00) 36.8 (2012/04/08 04:15:00.00) 43.9 (2012/04/08 04:30:00.00) 50.5 (2012/04/08 04:45:00.00) 44.0 (2012/04/08 05:00:00.00) 61.8 (2012/04/08 05:15:00.00) 47.7 (2012/04/08 05:30:00.00) 61.2 (2012/04/08 05:45:00.00) 60.3 (2012/04/08 06:00:00.00) 55.8 (2012/04/08 06:15:00.00) 49.3 (2012/04/08 06:30:00.00) 49.8 (2012/04/08 06:45:00.00) 41.9 (2012/04/08 07:00:00.00) 55.2 (2012/04/08 07:15:00.00) 51.2 (2012/04/08 07:30:00.00) 58.2 (2012/04/08 07:45:00.00) 42.4 (2012/04/08 08:00:00.00) 56.2 (2012/04/08 08:15:00.00) 56.3 (2012/04/08 08:30:00.00) 56.3 (2012/04/08 08:45:00.00) 47.5 (2012/04/08 09:00:00.00) 49.5 (2012/04/08 09:15:00.00) 55.4 (2012/04/08 09:30:00.00) 48.9 (2012/04/08 09:45:00.00) 44.9 (2012/04/08 10:00:00.00) 48.6 (2012/04/08 10:15:00.00) 49.2 (2012/04/08 10:30:00.00) 58.7 (2012/04/08 10:45:00.00) 41.6 (2012/04/08 11:00:00.00) 49.2 (2012/04/08 11:15:00.00) 48.3 (2012/04/08 11:30:00.00) 48.4 (2012/04/08 11:45:00.00) 43.9 (2012/04/08 12:00:00.00) 48.0 (2012/04/08 12:15:00.00)

LA90 35.1 34.5 33.5 36.7 35.9 36.1 37.2 33.9 32.4 33.5 31.1 31.5 30.1 29.3 30.1 29.0 29.4 29.6 29.0 29.8 29.1 28.5 27.7 29.4 29.0 29.2 28.2 29.6 29.4 27.8 27.8 27.9 29.6 29.4 29.2 28.9 29.0 29.8 30.0 30.5 30.4 30.5 29.1 29.4 30.1 30.8 32.7 32.6 33.6 36.9 36.2 36.3 36.9 39.3 42.9 42.0 37.5 37.9 37.5 36.4 36.4 38.4 42.4 34.1 35.0 35.9 38.0 39.2 37.4 37.3 37.4 38.1 37.8 39.7 40.7 37.7 38.0 37.4 37.7 37.7 37.9

LAMAX 86.3 69.1 84.7 85.5 85.6 68.4 85.4 85.2 77.4 78.8 75.1 57.8 68.6 49.0 76.3 40.5 61.0 47.6 56.5 49.0 44.5 60.1 47.4 47.5 42.0 44.8 37.2 42.4 41.9 38.3 43.6 38.6 40.4 42.1 42.2 41.1 44.1 42.1 42.7 43.3 53.7 45.7 42.3 41.3 49.4 44.3 44.4 42.9 45.5 67.2 71.4 64.9 85.9 61.9 81.6 81.2 83.5 83.9 83.7 71.2 83.9 84.2 83.3 69.2 83.9 81.4 82.0 69.9 82.4 83.2 84.0 70.0 82.7 82.3 82.5 72.0 83.6 83.2 82.9 68.1 82.2

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 47.5 (2012/04/08 12:30:00.00) 48.4 (2012/04/08 12:45:00.00) 44.5 (2012/04/08 13:00:00.00) 48.7 (2012/04/08 13:15:00.00) 47.8 (2012/04/08 13:30:00.00) 48.2 (2012/04/08 13:45:00.00) 38.5 (2012/04/08 14:00:00.00) 48.6 (2012/04/08 14:15:00.00) 48.5 (2012/04/08 14:30:00.00) 50.3 (2012/04/08 14:45:00.00) 43.3 (2012/04/08 15:00:00.00) 51.1 (2012/04/08 15:15:00.00) 48.8 (2012/04/08 15:30:00.00) 49.8 (2012/04/08 15:45:00.00) 45.6 (2012/04/08 16:00:00.00) 60.6 (2012/04/08 16:15:00.00) 55.2 (2012/04/08 16:30:00.00) 49.5 (2012/04/08 16:45:00.00) 41.9 (2012/04/08 17:00:00.00) 56.9 (2012/04/08 17:15:00.00) 59.4 (2012/04/08 17:30:00.00) 50.8 (2012/04/08 17:45:00.00) 58.4 (2012/04/08 18:00:00.00) 49.6 (2012/04/08 18:15:00.00) 50.5 (2012/04/08 18:30:00.00) 60.8 (2012/04/08 18:45:00.00) 58.1 (2012/04/08 19:00:00.00) 60.3 (2012/04/08 19:15:00.00) 46.8 (2012/04/08 19:30:00.00) 51.5 (2012/04/08 19:45:00.00) 52.4 (2012/04/08 20:00:00.00) 40.7 (2012/04/08 20:15:00.00) 39.1 (2012/04/08 20:30:00.00) 39.8 (2012/04/08 20:45:00.00) 34.2 (2012/04/08 21:00:00.00) 33.8 (2012/04/08 21:15:00.00) 32.5 (2012/04/08 21:30:00.00) 33.1 (2012/04/08 21:45:00.00) 33.3 (2012/04/08 22:00:00.00) 33.9 (2012/04/08 22:15:00.00) 33.4 (2012/04/08 22:30:00.00) 33.6 (2012/04/08 22:45:00.00) 35.7 (2012/04/08 23:00:00.00) 34.1 (2012/04/08 23:15:00.00) 36.6 (2012/04/08 23:30:00.00) 35.7 (2012/04/08 23:45:00.00) 37.1 (2012/04/09 00:00:00.00) 35.1 (2012/04/09 00:15:00.00) 35.4 (2012/04/09 00:30:00.00) 35.7 (2012/04/09 00:45:00.00) 35.3 (2012/04/09 01:00:00.00) 36.6 (2012/04/09 01:15:00.00) 36.7 (2012/04/09 01:30:00.00) 40.5 (2012/04/09 01:45:00.00) 41.0 (2012/04/09 02:00:00.00) 36.8 (2012/04/09 02:15:00.00) 35.5 (2012/04/09 02:30:00.00) 36.3 (2012/04/09 02:45:00.00) 35.9 (2012/04/09 03:00:00.00) 36.2 (2012/04/09 03:15:00.00) 39.4 (2012/04/09 03:30:00.00) 39.8 (2012/04/09 03:45:00.00) 40.0 (2012/04/09 04:00:00.00) 47.4 (2012/04/09 04:15:00.00) 47.8 (2012/04/09 04:30:00.00) 42.5 (2012/04/09 04:45:00.00) 44.5 (2012/04/09 05:00:00.00) 55.0 (2012/04/09 05:15:00.00) 52.1 (2012/04/09 05:30:00.00) 53.6 (2012/04/09 05:45:00.00) 54.6 (2012/04/09 06:00:00.00) 52.3 (2012/04/09 06:15:00.00) 42.7 (2012/04/09 06:30:00.00) 53.9 (2012/04/09 06:45:00.00) 55.9 (2012/04/09 07:00:00.00) 55.9 (2012/04/09 07:15:00.00) 54.7 (2012/04/09 07:30:00.00) 57.7 (2012/04/09 07:45:00.00) 57.1 (2012/04/09 08:00:00.00) 57.4 (2012/04/09 08:15:00.00) 57.4 (2012/04/09 08:30:00.00)

LA90 38.0 38.1 38.3 36.7 37.3 36.4 36.8 37.0 36.8 38.2 37.5 38.5 38.3 40.6 37.8 38.5 40.1 38.7 37.6 43.7 44.5 41.2 45.6 41.6 40.6 41.0 39.2 39.4 36.8 36.0 35.9 36.3 36.0 34.8 32.7 30.9 30.0 31.4 31.4 31.7 31.5 31.3 32.6 31.8 32.3 31.5 32.0 31.5 31.0 31.5 31.5 31.9 32.1 33.3 31.9 32.0 30.3 31.1 30.9 31.8 33.3 33.9 34.9 37.7 38.9 37.1 37.6 37.8 42.0 42.2 45.2 39.2 38.1 38.8 43.2 45.1 44.4 41.2 40.5 39.8 41.6

LAMAX 82.3 81.6 64.9 82.1 81.9 82.5 53.0 82.9 83.9 83.9 68.5 82.5 82.6 82.7 68.5 84.5 81.5 83.0 68.1 83.8 83.8 83.1 75.3 83.2 70.8 78.8 74.9 76.1 65.3 74.7 75.9 54.8 50.3 58.0 39.8 46.8 45.6 44.2 42.5 42.6 44.0 47.2 51.6 46.6 56.4 47.1 50.1 49.4 50.7 49.2 48.2 47.3 48.5 52.1 57.3 48.7 45.6 46.5 48.9 52.3 50.3 51.4 53.7 65.6 65.3 59.3 60.2 76.6 69.0 69.8 82.4 82.5 68.9 82.4 82.5 83.0 75.2 81.6 82.9 83.9 76.8

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 58.5 (2012/04/09 08:45:00.00) 55.5 (2012/04/09 09:00:00.00) 55.3 (2012/04/09 09:15:00.00) 50.0 (2012/04/09 09:30:00.00) 51.2 (2012/04/09 09:45:00.00) 49.8 (2012/04/09 10:00:00.00) 58.1 (2012/04/09 10:15:00.00) 53.4 (2012/04/09 10:30:00.00) 49.5 (2012/04/09 10:45:00.00) 52.5 (2012/04/09 11:00:00.00) 53.5 (2012/04/09 11:15:00.00) 54.2 (2012/04/09 11:30:00.00) 54.6 (2012/04/09 11:45:00.00) 51.8 (2012/04/09 12:00:00.00) 50.8 (2012/04/09 12:15:00.00) 52.2 (2012/04/09 12:30:00.00) 52.2 (2012/04/09 12:45:00.00) 56.5 (2012/04/09 13:00:00.00) 53.2 (2012/04/09 13:15:00.00) 49.3 (2012/04/09 13:30:00.00) 52.4 (2012/04/09 13:45:00.00) 60.1 (2012/04/09 14:00:00.00) 59.1 (2012/04/09 14:15:00.00) 49.1 (2012/04/09 14:30:00.00) 54.6 (2012/04/09 14:45:00.00) 51.2 (2012/04/09 15:00:00.00) 54.5 (2012/04/09 15:15:00.00) 48.4 (2012/04/09 15:30:00.00) 53.9 (2012/04/09 15:45:00.00) 53.9 (2012/04/09 16:00:00.00) 54.9 (2012/04/09 16:15:00.00) 52.8 (2012/04/09 16:30:00.00) 57.4 (2012/04/09 16:45:00.00) 54.8 (2012/04/09 17:00:00.00) 56.1 (2012/04/09 17:15:00.00) 53.8 (2012/04/09 17:30:00.00) 53.9 (2012/04/09 17:45:00.00) 52.3 (2012/04/09 18:00:00.00) 56.2 (2012/04/09 18:15:00.00) 59.8 (2012/04/09 18:30:00.00) 53.4 (2012/04/09 18:45:00.00) 55.1 (2012/04/09 19:00:00.00) 56.1 (2012/04/09 19:15:00.00) 52.8 (2012/04/09 19:30:00.00) 54.1 (2012/04/09 19:45:00.00) 51.4 (2012/04/09 20:00:00.00) 56.2 (2012/04/09 20:15:00.00) 50.1 (2012/04/09 20:30:00.00) 49.4 (2012/04/09 20:45:00.00) 49.8 (2012/04/09 21:00:00.00) 49.9 (2012/04/09 21:15:00.00) 50.2 (2012/04/09 21:30:00.00) 49.8 (2012/04/09 21:45:00.00) 49.5 (2012/04/09 22:00:00.00) 50.6 (2012/04/09 22:15:00.00) 51.6 (2012/04/09 22:30:00.00) 51.9 (2012/04/09 22:45:00.00) 52.1 (2012/04/09 23:00:00.00) 54.9 (2012/04/09 23:15:00.00) 52.4 (2012/04/09 23:30:00.00) 52.8 (2012/04/09 23:45:00.00) 52.2 (2012/04/10 00:00:00.00) 50.1 (2012/04/10 00:15:00.00) 51.3 (2012/04/10 00:30:00.00) 50.2 (2012/04/10 00:45:00.00) 49.9 (2012/04/10 01:00:00.00) 42.6 (2012/04/10 01:15:00.00) 49.3 (2012/04/10 01:30:00.00) 47.6 (2012/04/10 01:45:00.00) 47.7 (2012/04/10 02:00:00.00) 42.5 (2012/04/10 02:15:00.00) 49.6 (2012/04/10 02:30:00.00) 48.0 (2012/04/10 02:45:00.00) 50.1 (2012/04/10 03:00:00.00) 48.2 (2012/04/10 03:15:00.00) 45.8 (2012/04/10 03:30:00.00) 44.2 (2012/04/10 03:45:00.00) 44.0 (2012/04/10 04:00:00.00) 45.7 (2012/04/10 04:15:00.00) 46.3 (2012/04/10 04:30:00.00) 50.0 (2012/04/10 04:45:00.00)

LA90 42.1 41.6 42.4 42.7 42.7 41.9 43.1 43.8 42.3 42.9 44.8 43.2 42.4 42.9 42.7 45.5 46.3 46.2 44.4 43.2 44.1 46.6 42.9 43.5 46.9 42.3 42.8 43.0 46.5 42.2 43.5 42.4 45.8 47.6 49.6 46.4 45.7 43.8 44.7 49.3 46.8 45.9 46.4 44.1 43.6 43.6 44.0 43.6 42.2 42.7 40.5 41.2 42.2 41.7 41.4 42.6 41.9 41.2 43.7 42.9 43.0 43.7 38.5 42.2 39.1 36.7 29.7 37.4 37.7 36.0 33.7 38.0 38.2 39.7 39.1 36.9 37.3 38.3 40.5 40.6 41.5

LAMAX 81.5 82.2 82.9 75.3 83.0 82.7 81.8 68.7 82.1 82.5 81.6 78.6 81.7 79.8 79.7 69.9 81.9 79.0 82.7 67.4 79.3 81.7 81.6 68.4 81.7 82.2 81.5 68.3 81.5 82.8 82.3 74.3 82.7 82.1 80.8 68.5 82.3 82.0 77.4 78.8 72.8 71.2 79.7 68.2 75.4 63.6 76.0 60.6 62.5 64.6 63.7 63.6 62.3 59.9 63.8 66.2 66.0 63.1 69.0 67.3 65.4 65.4 63.0 64.2 65.0 67.1 59.5 62.5 60.5 63.6 55.6 67.5 62.1 66.3 62.1 60.3 54.7 53.8 60.7 64.1 78.5

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 47.6 (2012/04/10 05:00:00.00) 58.2 (2012/04/10 05:15:00.00) 57.4 (2012/04/10 05:30:00.00) 60.6 (2012/04/10 05:45:00.00) 62.2 (2012/04/10 06:00:00.00) 51.4 (2012/04/10 06:15:00.00) 51.5 (2012/04/10 06:30:00.00) 54.8 (2012/04/10 06:45:00.00) 54.8 (2012/04/10 07:00:00.00) 51.3 (2012/04/10 07:15:00.00) 57.5 (2012/04/10 07:30:00.00) 59.9 (2012/04/10 07:45:00.00) 59.9 (2012/04/10 08:00:00.00) 53.9 (2012/04/10 08:15:00.00) 51.8 (2012/04/10 08:30:00.00) 62.3 (2012/04/10 08:45:00.00) 54.7 (2012/04/10 09:00:00.00) 54.8 (2012/04/10 09:15:00.00) 55.1 (2012/04/10 09:30:00.00) 62.3 (2012/04/10 09:45:00.00) 63.1 (2012/04/10 10:00:00.00) 54.8 (2012/04/10 10:15:00.00) 54.9 (2012/04/10 10:30:00.00) 54.1 (2012/04/10 10:45:00.00) 53.7 (2012/04/10 11:00:00.00) 53.1 (2012/04/10 11:15:00.00) 56.0 (2012/04/10 11:30:00.00) 56.0 (2012/04/10 11:45:00.00) 70.1 (2012/04/10 12:00:00.00) 54.7 (2012/04/10 12:15:00.00) 54.1 (2012/04/10 12:30:00.00) 57.0 (2012/04/10 12:45:00.00) 55.2 (2012/04/10 13:00:00.00) 50.7 (2012/04/10 13:15:00.00) 52.1 (2012/04/10 13:30:00.00) 62.2 (2012/04/10 13:45:00.00) 51.3 (2012/04/10 14:00:00.00) 54.7 (2012/04/10 14:15:00.00) 58.8 (2012/04/10 14:30:00.00) 51.0 (2012/04/10 14:45:00.00) 50.1 (2012/04/10 15:00:00.00) 58.1 (2012/04/10 15:15:00.00) 50.4 (2012/04/10 15:30:00.00) 52.1 (2012/04/10 15:45:00.00) 54.4 (2012/04/10 16:00:00.00) 56.3 (2012/04/10 16:15:00.00) 55.5 (2012/04/10 16:30:00.00) 59.9 (2012/04/10 16:45:00.00) 50.3 (2012/04/10 17:00:00.00) 53.1 (2012/04/10 17:15:00.00) 60.6 (2012/04/10 17:30:00.00) 57.6 (2012/04/10 17:45:00.00) 50.1 (2012/04/10 18:00:00.00) 52.3 (2012/04/10 18:15:00.00) 58.1 (2012/04/10 18:30:00.00) 54.0 (2012/04/10 18:45:00.00) 51.2 (2012/04/10 19:00:00.00) 38.6 (2012/04/10 19:15:00.00) 50.1 (2012/04/10 19:30:00.00) 50.8 (2012/04/10 19:45:00.00) 42.8 (2012/04/10 20:00:00.00) 42.4 (2012/04/10 20:15:00.00) 41.0 (2012/04/10 20:30:00.00) 38.8 (2012/04/10 20:45:00.00) 39.1 (2012/04/10 21:00:00.00) 38.0 (2012/04/10 21:15:00.00) 37.9 (2012/04/10 21:30:00.00) 37.6 (2012/04/10 21:45:00.00) 38.3 (2012/04/10 22:00:00.00) 37.7 (2012/04/10 22:15:00.00) 40.2 (2012/04/10 22:30:00.00) 40.4 (2012/04/10 22:45:00.00) 35.7 (2012/04/10 23:00:00.00) 35.0 (2012/04/10 23:15:00.00) 34.8 (2012/04/10 23:30:00.00) 33.5 (2012/04/10 23:45:00.00) 33.1 (2012/04/11 00:00:00.00) 32.5 (2012/04/11 00:15:00.00) 31.9 (2012/04/11 00:30:00.00) 31.9 (2012/04/11 00:45:00.00) 32.5 (2012/04/11 01:00:00.00)

LA90 41.7 44.1 43.3 48.0 49.2 44.6 44.4 44.4 46.4 45.9 47.9 53.0 47.1 46.2 43.4 46.7 44.6 46.1 47.0 47.3 44.3 45.6 44.1 44.7 43.4 43.8 43.4 49.2 47.5 44.5 44.5 45.9 44.1 42.3 39.4 40.8 40.4 45.7 40.9 38.9 39.9 42.0 39.3 43.9 44.9 41.1 40.9 40.0 40.3 38.5 39.7 38.2 38.0 38.5 37.1 38.5 36.7 36.5 37.6 39.9 39.8 39.5 38.5 37.5 37.7 36.1 36.4 36.0 36.2 35.5 35.1 35.3 33.7 32.7 32.3 31.7 31.1 30.3 29.8 29.1 30.0

LAMAX 62.0 79.4 79.4 80.6 81.0 81.3 81.8 79.2 70.2 78.9 80.2 80.4 77.5 80.8 81.0 83.4 68.2 82.1 79.3 82.2 83.2 79.6 82.2 81.5 65.8 80.2 81.2 79.1 96.9 82.9 81.0 78.7 70.7 80.7 83.8 87.7 67.9 81.3 82.7 81.1 70.1 83.4 83.1 82.5 68.4 82.1 80.3 81.8 66.4 84.0 82.8 83.2 64.5 82.3 77.4 68.8 72.6 52.3 67.5 72.9 53.9 58.0 51.2 43.9 47.3 58.5 46.7 43.5 46.1 50.9 57.6 53.1 45.8 42.8 46.2 45.0 42.7 38.8 45.3 47.2 39.1

POSITION 1 ‐ "SILVER BIRCHES" Date/Time LAeq 32.9 (2012/04/11 01:15:00.00) 32.5 (2012/04/11 01:30:00.00) 32.6 (2012/04/11 01:45:00.00) 32.7 (2012/04/11 02:00:00.00) 33.6 (2012/04/11 02:15:00.00) 35.6 (2012/04/11 02:30:00.00) 34.3 (2012/04/11 02:45:00.00) 34.1 (2012/04/11 03:00:00.00) 33.6 (2012/04/11 03:15:00.00) 35.0 (2012/04/11 03:30:00.00) 35.1 (2012/04/11 03:45:00.00) 38.7 (2012/04/11 04:00:00.00) 42.3 (2012/04/11 04:15:00.00) 41.1 (2012/04/11 04:30:00.00) 42.5 (2012/04/11 04:45:00.00) 44.7 (2012/04/11 05:00:00.00) 57.4 (2012/04/11 05:15:00.00) 57.0 (2012/04/11 05:30:00.00) 61.7 (2012/04/11 05:45:00.00) 61.2 (2012/04/11 06:00:00.00) 52.4 (2012/04/11 06:15:00.00) 49.4 (2012/04/11 06:30:00.00) 55.0 (2012/04/11 06:45:00.00) 54.7 (2012/04/11 07:00:00.00) 49.4 (2012/04/11 07:15:00.00) 52.1 (2012/04/11 07:30:00.00) 55.7 (2012/04/11 07:45:00.00) 50.9 (2012/04/11 08:00:00.00) 58.7 (2012/04/11 08:15:00.00) 58.3 (2012/04/11 08:30:00.00) 52.8 (2012/04/11 08:45:00.00) 46.1 (2012/04/11 09:00:00.00) 55.5 (2012/04/11 09:15:00.00) 55.6 (2012/04/11 09:30:00.00) 50.5 (2012/04/11 09:45:00.00) 58.6 (2012/04/11 10:00:00.00) 53.5 (2012/04/11 10:15:00.00) 49.2 (2012/04/11 10:30:00.00) 53.1 (2012/04/11 10:45:00.00) 42.0 (2012/04/11 11:00:00.00) 58.2 (2012/04/11 11:15:00.00) 49.0 (2012/04/11 11:30:00.00) 51.8 (2012/04/11 11:45:00.00) 40.6 (2012/04/11 12:00:00.00) 48.5 (2012/04/11 12:15:00.00) 49.2 (2012/04/11 12:30:00.00) 50.1 (2012/04/11 12:45:00.00) 52.4 (2012/04/11 13:00:00.00) 52.9 (2012/04/11 13:15:00.00) 49.0 (2012/04/11 13:30:00.00) 53.9 (2012/04/11 13:45:00.00) 51.0 (2012/04/11 14:00:00.00) 49.4 (2012/04/11 14:15:00.00) 52.9 (2012/04/11 14:30:00.00) 47.3 (2012/04/11 14:45:00.00) 52.4 (2012/04/11 15:00:00.00) 49.0 (2012/04/11 15:15:00.00) 51.5 (2012/04/11 15:30:00.00) 51.1 (2012/04/11 15:45:00.00) 39.2 (2012/04/11 16:00:00.00) 57.2 (2012/04/11 16:15:00.00) 58.7 (2012/04/11 16:30:00.00) 55.3 (2012/04/11 16:45:00.00) 40.5 (2012/04/11 17:00:00.00) 55.5 (2012/04/11 17:15:00.00) 52.5 (2012/04/11 17:30:00.00) 59.4 (2012/04/11 17:45:00.00) 48.4 (2012/04/11 18:00:00.00) 52.3 (2012/04/11 18:15:00.00) 49.8 (2012/04/11 18:30:00.00) 56.5 (2012/04/11 18:45:00.00) 40.0 (2012/04/11 19:00:00.00)

LA90 28.6 29.8 29.9 30.0 31.5 32.2 31.7 31.4 31.4 32.2 33.3 35.5 38.8 38.9 39.9 40.9 44.2 48.3 55.0 44.4 45.3 43.9 44.0 44.5 42.8 40.9 42.3 37.3 37.8 36.4 37.2 37.3 38.9 42.7 41.9 40.1 37.2 37.3 37.8 36.3 35.9 35.7 35.6 34.9 35.1 36.3 36.0 39.0 36.6 33.6 34.4 37.4 34.0 38.3 37.1 42.9 35.7 33.5 35.8 35.6 36.6 41.2 35.9 36.2 35.4 35.5 37.2 38.4 38.4 37.5 38.0 35.9

LAMAX 47.7 48.4 40.5 43.2 40.0 48.5 45.2 43.7 40.9 46.1 46.7 52.4 54.3 63.7 59.0 67.4 79.2 69.1 82.3 75.4 82.8 82.3 82.3 71.0 82.5 81.2 81.6 72.3 83.3 83.2 83.7 66.9 83.2 82.1 81.6 76.3 81.2 82.4 83.6 61.0 84.3 81.9 83.0 66.2 83.1 83.5 81.2 68.0 84.3 83.7 84.3 69.2 84.0 82.6 81.3 69.1 82.2 82.3 84.7 66.0 83.4 83.7 85.2 51.8 84.2 85.5 85.7 68.6 85.3 85.2 76.3 53.2

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/22 10:30:00.00) 56.5 (2012/02/22 10:45:00.00) 60.1 (2012/02/22 11:00:00.00) 52.9 (2012/02/22 11:15:00.00) 56.2 (2012/02/22 11:30:00.00) 62.9 (2012/02/22 11:45:00.00) 60.4 (2012/02/22 12:00:00.00) 56.9 (2012/02/22 12:15:00.00) 52.9 (2012/02/22 12:30:00.00) 53.6 (2012/02/22 12:45:00.00) 55.8 (2012/02/22 13:00:00.00) 64.5 (2012/02/22 13:15:00.00) 63.7 (2012/02/22 13:30:00.00) 61.6 (2012/02/22 13:45:00.00) 64.2 (2012/02/22 14:00:00.00) 58.9 (2012/02/22 14:15:00.00) 60.1 (2012/02/22 14:30:00.00) 53.4 (2012/02/22 14:45:00.00) 53.4 (2012/02/22 15:00:00.00) 53.8 (2012/02/22 15:15:00.00) 55.9 (2012/02/22 15:30:00.00) 63.8 (2012/02/22 15:45:00.00) 56.4 (2012/02/22 16:00:00.00) 55.0 (2012/02/22 16:15:00.00) 63.8 (2012/02/22 16:30:00.00) 54.3 (2012/02/22 16:45:00.00) 57.7 (2012/02/22 17:00:00.00) 53.6 (2012/02/22 17:15:00.00) 53.3 (2012/02/22 17:30:00.00) 54.1 (2012/02/22 17:45:00.00) 63.0 (2012/02/22 18:00:00.00) 60.6 (2012/02/22 18:15:00.00) 51.8 (2012/02/22 18:30:00.00) 52.4 58.9 (2012/02/22 18:45:00.00) (2012/02/22 19:00:00.00) 58.9 (2012/02/22 19:15:00.00) 56.3 (2012/02/22 19:30:00.00) 49.3 (2012/02/22 19:45:00.00) 59.6 (2012/02/22 20:00:00.00) 47.2 (2012/02/22 20:15:00.00) 56.7 (2012/02/22 20:30:00.00) 55.6 (2012/02/22 20:45:00.00) 48.8 (2012/02/22 21:00:00.00) 59.2 (2012/02/22 21:15:00.00) 48.4 (2012/02/22 21:30:00.00) 46.6 (2012/02/22 21:45:00.00) 45.9 (2012/02/22 22:00:00.00) 42.8 (2012/02/22 22:15:00.00) 43.3 (2012/02/22 22:30:00.00) 43.6 (2012/02/22 22:45:00.00) 45.1 (2012/02/22 23:00:00.00) 44.1 (2012/02/22 23:15:00.00) 43.1 (2012/02/22 23:30:00.00) 41.6 (2012/02/22 23:45:00.00) 42.7 (2012/02/23 00:00:00.00) 43.4 (2012/02/23 00:15:00.00) 43.2 (2012/02/23 00:30:00.00) 41.8 (2012/02/23 00:45:00.00) 41.9 (2012/02/23 01:00:00.00) 39.5 (2012/02/23 01:15:00.00) 35.5 (2012/02/23 01:30:00.00) 35.0 (2012/02/23 01:45:00.00) 35.5 (2012/02/23 02:00:00.00) 39.7 (2012/02/23 02:15:00.00) 35.8 (2012/02/23 02:30:00.00) 32.0 (2012/02/23 02:45:00.00) 33.1 (2012/02/23 03:00:00.00) 33.2 35.8 (2012/02/23 03:15:00.00)

LA90 48.9 49.4 48.4 48.6 49.6 51.2 50.8 50.0 48.7 50.3 49.4 51.0 51.5 51.4 50.9 50.1 49.7 50.5 50.8 52.1 52.2 52.0 51.2 51.4 51.5 51.2 49.4 50.5 50.4 49.5 49.3 48.2 48.8 49.2 47.2 46.4 46.5 46.2 45.0 44.4 45.1 46.4 43.1 45.0 44.3 42.4 40.6 39.5 38.6 42.0 41.3 39.1 39.3 39.1 39.7 40.5 38.4 38.9 35.8 31.7 31.4 32.7 35.0 33.5 28.2 29.4 30.5 29.2

LAMAX 79.3 76.6 75.3 77.0 83.8 78.2 78.6 77.4 76.7 73.5 86.1 84.1 82.1 85.6 78.6 82.8 72.7 76.2 76.4 78.9 87.7 81.7 77.2 84.6 77.3 80.3 80.0 75.4 66.4 84.4 83.6 64.5 72.8 81.7 81.5 79.1 61.9 82.3 53.8 76.9 78.5 55.3 82.6 69.2 52.3 51.9 48.9 62.5 57.8 55.9 50.8 50.0 48.6 49.0 50.6 51.8 52.9 48.9 47.7 47.7 45.3 43.2 53.1 46.9 42.5 46.5 42.8 48.9

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/23 03:30:00.00) 35.5 (2012/02/23 03:45:00.00) 35.4 (2012/02/23 04:00:00.00) 35.5 (2012/02/23 04:15:00.00) 32.8 (2012/02/23 04:30:00.00) 35.0 (2012/02/23 04:45:00.00) 35.9 (2012/02/23 05:00:00.00) 36.5 (2012/02/23 05:15:00.00) 38.3 (2012/02/23 05:30:00.00) 39.9 (2012/02/23 05:45:00.00) 39.3 (2012/02/23 06:00:00.00) 42.4 (2012/02/23 06:15:00.00) 53.8 (2012/02/23 06:30:00.00) 50.7 (2012/02/23 06:45:00.00) 61.2 (2012/02/23 07:00:00.00) 63.8 (2012/02/23 07:15:00.00) 50.8 (2012/02/23 07:30:00.00) 51.5 (2012/02/23 07:45:00.00) 59.6 (2012/02/23 08:00:00.00) 59.7 (2012/02/23 08:15:00.00) 61.2 (2012/02/23 08:30:00.00) 60.5 (2012/02/23 08:45:00.00) 54.9 (2012/02/23 09:00:00.00) 66.0 (2012/02/23 09:15:00.00) 53.8 (2012/02/23 09:30:00.00) 57.6 (2012/02/23 09:45:00.00) 56.8 (2012/02/23 10:00:00.00) 56.4 (2012/02/23 10:15:00.00) 54.4 (2012/02/23 10:30:00.00) 54.8 (2012/02/23 10:45:00.00) 52.4 (2012/02/23 11:00:00.00) 51.7 (2012/02/23 11:15:00.00) 52.0 (2012/02/23 11:30:00.00) 56.4 51.7 (2012/02/23 11:45:00.00) (2012/02/23 12:00:00.00) 51.3 (2012/02/23 12:15:00.00) 62.7 (2012/02/23 12:30:00.00) 50.7 (2012/02/23 12:45:00.00) 52.0 (2012/02/23 13:00:00.00) 48.8 (2012/02/23 13:15:00.00) 51.6 (2012/02/23 13:30:00.00) 49.6 (2012/02/23 13:45:00.00) 50.8 (2012/02/23 14:00:00.00) 56.5 (2012/02/23 14:15:00.00) 57.1 (2012/02/23 14:30:00.00) 51.7 (2012/02/23 14:45:00.00) 51.3 (2012/02/23 15:00:00.00) 60.5 (2012/02/23 15:15:00.00) 52.9 (2012/02/23 15:30:00.00) 53.5 (2012/02/23 15:45:00.00) 51.8 (2012/02/23 16:00:00.00) 49.9 (2012/02/23 16:15:00.00) 52.0 (2012/02/23 16:30:00.00) 60.6 (2012/02/23 16:45:00.00) 53.9 (2012/02/23 17:00:00.00) 57.2 (2012/02/23 17:15:00.00) 55.5 (2012/02/23 17:30:00.00) 54.4 (2012/02/23 17:45:00.00) 55.3 (2012/02/23 18:00:00.00) 51.2 (2012/02/23 18:15:00.00) 58.6 (2012/02/23 18:30:00.00) 50.1 (2012/02/23 18:45:00.00) 61.1 (2012/02/23 19:00:00.00) 46.7 (2012/02/23 19:15:00.00) 57.6 (2012/02/23 19:30:00.00) 58.2 (2012/02/23 19:45:00.00) 45.0 (2012/02/23 20:00:00.00) 44.5 53.2 (2012/02/23 20:15:00.00)

LA90 29.9 31.7 29.9 29.0 29.3 28.9 29.4 30.8 35.2 35.1 36.3 41.1 43.8 48.5 46.9 46.8 46.5 47.5 48.4 47.5 47.8 49.3 46.8 46.6 46.3 45.4 45.1 43.6 45.0 43.2 41.0 44.2 44.4 45.4 45.1 45.1 44.4 45.5 44.4 44.6 44.5 44.2 43.4 43.9 43.5 43.7 44.9 43.5 45.0 45.4 45.1 45.6 46.0 46.9 47.9 46.0 45.9 45.5 44.6 44.1 44.0 43.8 44.0 44.0 43.6 42.4 42.0 41.7

LAMAX 48.2 47.3 47.6 44.2 59.4 48.5 59.1 50.3 48.6 49.8 58.7 72.6 70.2 81.3 86.1 66.2 71.4 79.3 80.7 83.5 85.0 76.1 89.1 76.3 77.3 81.1 78.7 84.9 70.1 76.8 71.8 68.6 81.3 74.0 80.5 85.5 78.2 73.0 74.2 72.7 71.3 77.8 80.2 76.6 78.9 74.2 84.8 78.2 86.4 75.3 75.0 75.0 83.2 74.5 80.3 81.1 73.9 85.2 69.3 78.9 71.4 79.6 57.8 81.6 80.9 51.7 51.6 75.9

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/23 20:30:00.00) 58.5 (2012/02/23 20:45:00.00) 44.6 (2012/02/23 21:00:00.00) 62.3 (2012/02/23 21:15:00.00) 43.6 (2012/02/23 21:30:00.00) 43.2 (2012/02/23 21:45:00.00) 42.8 (2012/02/23 22:00:00.00) 43.5 (2012/02/23 22:15:00.00) 43.1 (2012/02/23 22:30:00.00) 40.4 (2012/02/23 22:45:00.00) 40.3 (2012/02/23 23:00:00.00) 40.0 (2012/02/23 23:15:00.00) 38.9 (2012/02/23 23:30:00.00) 38.2 (2012/02/23 23:45:00.00) 36.2 (2012/02/24 00:00:00.00) 35.8 (2012/02/24 00:15:00.00) 34.6 (2012/02/24 00:30:00.00) 37.8 (2012/02/24 00:45:00.00) 36.2 (2012/02/24 01:00:00.00) 39.4 (2012/02/24 01:15:00.00) 38.0 (2012/02/24 01:30:00.00) 38.1 (2012/02/24 01:45:00.00) 38.4 (2012/02/24 02:00:00.00) 38.2 (2012/02/24 02:15:00.00) 37.5 (2012/02/24 02:30:00.00) 36.7 (2012/02/24 02:45:00.00) 37.5 (2012/02/24 03:00:00.00) 35.6 (2012/02/24 03:15:00.00) 36.8 (2012/02/24 03:30:00.00) 40.7 (2012/02/24 03:45:00.00) 38.7 (2012/02/24 04:00:00.00) 37.2 (2012/02/24 04:15:00.00) 39.6 (2012/02/24 04:30:00.00) 40.2 39.9 (2012/02/24 04:45:00.00) (2012/02/24 05:00:00.00) 39.0 (2012/02/24 05:15:00.00) 39.3 (2012/02/24 05:30:00.00) 40.8 (2012/02/24 05:45:00.00) 40.8 (2012/02/24 06:00:00.00) 44.2 (2012/02/24 06:15:00.00) 54.5 (2012/02/24 06:30:00.00) 50.7 (2012/02/24 06:45:00.00) 52.3 (2012/02/24 07:00:00.00) 52.0 (2012/02/24 07:15:00.00) 52.0 (2012/02/24 07:30:00.00) 55.2 (2012/02/24 07:45:00.00) 53.4 (2012/02/24 08:00:00.00) 63.5 (2012/02/24 08:15:00.00) 58.5 (2012/02/24 08:30:00.00) 53.0 (2012/02/24 08:45:00.00) 52.1 (2012/02/24 09:00:00.00) 63.7 (2012/02/24 09:15:00.00) 60.0 (2012/02/24 09:30:00.00) 60.0 (2012/02/24 09:45:00.00) 53.6 (2012/02/24 10:00:00.00) 51.7 (2012/02/24 10:15:00.00) 59.5 (2012/02/24 10:30:00.00) 56.6 (2012/02/24 10:45:00.00) 56.9 (2012/02/24 11:00:00.00) 56.5 (2012/02/24 11:15:00.00) 61.4 (2012/02/24 11:30:00.00) 53.8 (2012/02/24 11:45:00.00) 51.2 (2012/02/24 12:00:00.00) 58.8 (2012/02/24 12:15:00.00) 50.2 (2012/02/24 12:30:00.00) 49.8 (2012/02/24 12:45:00.00) 52.0 (2012/02/24 13:00:00.00) 57.1 60.2 (2012/02/24 13:15:00.00)

LA90 42.5 41.7 40.3 41.4 40.3 39.8 38.8 40.0 36.6 36.0 36.5 33.9 33.7 32.3 32.3 30.3 31.8 32.8 35.3 34.5 34.7 35.9 36.0 34.9 32.7 33.1 32.6 33.4 37.1 35.1 34.4 36.8 37.2 36.7 34.8 35.4 36.7 37.7 38.9 42.2 43.6 46.1 46.8 46.0 46.7 47.6 48.0 48.2 47.3 47.2 46.4 46.8 47.1 46.0 45.4 45.7 45.1 45.6 46.0 45.3 44.9 46.3 46.4 45.5 44.6 45.8 46.3 47.6

LAMAX 78.8 56.0 87.7 52.2 52.6 49.3 53.3 50.8 48.5 49.4 49.0 48.9 51.1 47.9 51.6 45.3 52.2 47.8 50.5 47.9 48.1 44.9 49.5 46.0 50.9 46.1 47.6 46.2 49.0 49.5 44.8 48.7 50.8 47.0 51.2 49.6 48.1 53.2 63.8 78.0 72.8 68.3 66.7 72.9 70.1 70.5 84.9 79.9 67.1 79.1 86.3 84.4 82.3 77.1 74.2 86.8 89.1 76.2 77.0 80.0 77.1 75.1 77.9 76.7 74.2 73.7 77.9 77.7

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/24 13:30:00.00) 62.5 (2012/02/24 13:45:00.00) 52.2 (2012/02/24 14:00:00.00) 50.7 (2012/02/24 14:15:00.00) 50.3 (2012/02/24 14:30:00.00) 51.4 (2012/02/24 14:45:00.00) 60.1 (2012/02/24 15:00:00.00) 52.3 (2012/02/24 15:15:00.00) 53.1 (2012/02/24 15:30:00.00) 60.3 (2012/02/24 15:45:00.00) 49.3 (2012/02/24 16:00:00.00) 60.0 (2012/02/24 16:15:00.00) 59.3 (2012/02/24 16:30:00.00) 55.4 (2012/02/24 16:45:00.00) 61.5 (2012/02/24 17:00:00.00) 60.2 (2012/02/24 17:15:00.00) 54.4 (2012/02/24 17:30:00.00) 52.7 (2012/02/24 17:45:00.00) 49.4 (2012/02/24 18:00:00.00) 47.8 (2012/02/24 18:15:00.00) 59.7 (2012/02/24 18:30:00.00) 62.4 (2012/02/24 18:45:00.00) 60.3 (2012/02/24 19:00:00.00) 57.1 (2012/02/24 19:15:00.00) 60.9 (2012/02/24 19:30:00.00) 46.1 (2012/02/24 19:45:00.00) 45.5 (2012/02/24 20:00:00.00) 56.2 (2012/02/24 20:15:00.00) 58.0 (2012/02/24 20:30:00.00) 55.3 (2012/02/24 20:45:00.00) 43.3 (2012/02/24 21:00:00.00) 58.5 (2012/02/24 21:15:00.00) 44.3 (2012/02/24 21:30:00.00) 44.4 47.2 (2012/02/24 21:45:00.00) (2012/02/24 22:00:00.00) 43.2 (2012/02/24 22:15:00.00) 43.4 (2012/02/24 22:30:00.00) 44.9 (2012/02/24 22:45:00.00) 43.8 (2012/02/24 23:00:00.00) 42.4 (2012/02/24 23:15:00.00) 42.6 (2012/02/24 23:30:00.00) 42.6 (2012/02/24 23:45:00.00) 42.3 (2012/02/25 00:00:00.00) 39.5 (2012/02/25 00:15:00.00) 39.1 (2012/02/25 00:30:00.00) 40.0 (2012/02/25 00:45:00.00) 39.3 (2012/02/25 01:00:00.00) 39.8 (2012/02/25 01:15:00.00) 37.9 (2012/02/25 01:30:00.00) 37.2 (2012/02/25 01:45:00.00) 38.2 (2012/02/25 02:00:00.00) 37.2 (2012/02/25 02:15:00.00) 33.8 (2012/02/25 02:30:00.00) 34.7 (2012/02/25 02:45:00.00) 35.0 (2012/02/25 03:00:00.00) 32.7 (2012/02/25 03:15:00.00) 33.1 (2012/02/25 03:30:00.00) 32.2 (2012/02/25 03:45:00.00) 34.9 (2012/02/25 04:00:00.00) 34.3 (2012/02/25 04:15:00.00) 31.0 (2012/02/25 04:30:00.00) 31.8 (2012/02/25 04:45:00.00) 35.6 (2012/02/25 05:00:00.00) 38.0 (2012/02/25 05:15:00.00) 37.9 (2012/02/25 05:30:00.00) 40.3 (2012/02/25 05:45:00.00) 39.6 (2012/02/25 06:00:00.00) 49.7 61.3 (2012/02/25 06:15:00.00)

LA90 44.7 44.5 45.0 44.0 46.2 46.1 45.8 45.5 45.2 44.9 45.9 47.7 47.0 47.9 46.1 46.4 46.3 45.6 45.3 45.6 44.9 43.5 43.1 44.5 42.9 42.1 43.5 41.2 40.9 39.4 40.4 38.7 39.8 42.2 36.8 37.9 38.6 36.0 38.9 37.2 37.4 36.7 32.6 32.4 33.4 27.8 32.0 30.9 27.3 28.6 26.3 24.0 24.6 23.6 22.8 24.5 24.5 23.7 24.6 22.8 23.4 25.4 28.4 28.1 30.4 32.7 36.1 42.1

LAMAX 85.6 71.6 77.1 78.1 77.8 84.5 69.0 73.0 84.8 72.3 82.1 78.1 77.9 85.7 79.8 73.3 74.4 70.3 62.6 82.2 83.9 84.6 79.6 82.8 56.0 53.5 75.1 78.7 77.5 51.1 81.1 54.0 52.4 59.8 53.3 52.8 64.9 54.3 51.5 53.8 53.9 54.9 53.1 53.8 52.6 51.6 52.3 49.7 52.4 50.9 47.6 50.4 48.8 49.0 49.8 51.0 45.5 49.3 46.0 48.6 47.4 50.3 52.8 50.7 53.8 52.7 72.2 82.5

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/25 06:30:00.00) 51.9 (2012/02/25 06:45:00.00) 50.7 (2012/02/25 07:00:00.00) 49.0 (2012/02/25 07:15:00.00) 50.3 (2012/02/25 07:30:00.00) 54.1 (2012/02/25 07:45:00.00) 58.6 (2012/02/25 08:00:00.00) 50.0 (2012/02/25 08:15:00.00) 62.6 (2012/02/25 08:30:00.00) 53.4 (2012/02/25 08:45:00.00) 58.1 (2012/02/25 09:00:00.00) 52.7 (2012/02/25 09:15:00.00) 59.9 (2012/02/25 09:30:00.00) 59.6 (2012/02/25 09:45:00.00) 50.3 (2012/02/25 10:00:00.00) 52.2 (2012/02/25 10:15:00.00) 51.4 (2012/02/25 10:30:00.00) 50.6 (2012/02/25 10:45:00.00) 49.8 (2012/02/25 11:00:00.00) 55.9 (2012/02/25 11:15:00.00) 50.7 (2012/02/25 11:30:00.00) 52.1 (2012/02/25 11:45:00.00) 50.2 (2012/02/25 12:00:00.00) 56.5 (2012/02/25 12:15:00.00) 52.8 (2012/02/25 12:30:00.00) 50.5 (2012/02/25 12:45:00.00) 53.3 (2012/02/25 13:00:00.00) 51.3 (2012/02/25 13:15:00.00) 50.6 (2012/02/25 13:30:00.00) 48.5 (2012/02/25 13:45:00.00) 47.9 (2012/02/25 14:00:00.00) 53.4 (2012/02/25 14:15:00.00) 49.7 (2012/02/25 14:30:00.00) 49.4 47.6 (2012/02/25 14:45:00.00) (2012/02/25 15:00:00.00) 48.8 (2012/02/25 15:15:00.00) 52.5 (2012/02/25 15:30:00.00) 54.1 (2012/02/25 15:45:00.00) 50.1 (2012/02/25 16:00:00.00) 51.5 (2012/02/25 16:15:00.00) 59.6 (2012/02/25 16:30:00.00) 59.7 (2012/02/25 16:45:00.00) 48.6 (2012/02/25 17:00:00.00) 47.1 (2012/02/25 17:15:00.00) 49.1 (2012/02/25 17:30:00.00) 47.1 (2012/02/25 17:45:00.00) 48.7 (2012/02/25 18:00:00.00) 64.7 (2012/02/25 18:15:00.00) 51.4 (2012/02/25 18:30:00.00) 45.6 (2012/02/25 18:45:00.00) 44.7 (2012/02/25 19:00:00.00) 46.0 (2012/02/25 19:15:00.00) 55.2 (2012/02/25 19:30:00.00) 62.9 (2012/02/25 19:45:00.00) 43.4 (2012/02/25 20:00:00.00) 62.7 (2012/02/25 20:15:00.00) 42.5 (2012/02/25 20:30:00.00) 42.6 (2012/02/25 20:45:00.00) 61.1 (2012/02/25 21:00:00.00) 41.1 (2012/02/25 21:15:00.00) 40.1 (2012/02/25 21:30:00.00) 40.9 (2012/02/25 21:45:00.00) 43.8 (2012/02/25 22:00:00.00) 44.4 (2012/02/25 22:15:00.00) 43.1 (2012/02/25 22:30:00.00) 43.3 (2012/02/25 22:45:00.00) 44.7 (2012/02/25 23:00:00.00) 43.7 43.4 (2012/02/25 23:15:00.00)

LA90 42.5 45.6 43.6 42.2 44.5 45.8 44.3 44.4 47.2 44.7 46.1 44.2 45.1 45.0 44.7 44.4 44.9 45.7 45.1 45.9 45.9 45.8 45.1 45.1 45.1 45.7 45.4 45.3 44.7 44.1 45.3 43.6 45.2 43.7 45.0 44.2 43.4 44.7 44.4 45.8 45.1 44.4 43.0 43.3 42.8 42.5 42.5 42.7 42.6 42.5 42.7 41.8 42.0 40.5 39.7 39.2 37.7 35.6 37.0 35.2 36.5 38.4 40.2 38.0 38.0 40.8 36.6 38.5

LAMAX 67.8 69.1 61.9 76.2 72.8 78.3 67.3 83.4 69.7 75.3 73.1 82.7 81.6 71.9 82.3 69.4 70.2 74.0 80.2 67.3 68.5 71.8 78.4 72.2 66.5 74.3 68.6 68.5 72.9 67.8 70.2 73.5 70.2 66.6 63.3 75.3 75.5 71.8 72.0 82.3 82.4 70.5 72.5 70.2 70.8 71.4 83.4 71.9 50.4 51.2 59.0 73.3 86.9 52.3 84.6 55.0 50.7 83.6 50.0 51.8 51.3 54.2 56.2 53.8 53.1 54.8 55.3 51.9

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/25 23:30:00.00) 43.4 (2012/02/25 23:45:00.00) 42.4 (2012/02/26 00:00:00.00) 44.1 (2012/02/26 00:15:00.00) 43.0 (2012/02/26 00:30:00.00) 40.9 (2012/02/26 00:45:00.00) 40.4 (2012/02/26 01:00:00.00) 40.0 (2012/02/26 01:15:00.00) 38.3 (2012/02/26 01:30:00.00) 39.2 (2012/02/26 01:45:00.00) 36.7 (2012/02/26 02:00:00.00) 36.8 (2012/02/26 02:15:00.00) 34.2 (2012/02/26 02:30:00.00) 36.0 (2012/02/26 02:45:00.00) 35.2 (2012/02/26 03:00:00.00) 34.4 (2012/02/26 03:15:00.00) 34.5 (2012/02/26 03:30:00.00) 32.3 (2012/02/26 03:45:00.00) 35.1 (2012/02/26 04:00:00.00) 36.5 (2012/02/26 04:15:00.00) 35.1 (2012/02/26 04:30:00.00) 34.2 (2012/02/26 04:45:00.00) 34.5 (2012/02/26 05:00:00.00) 36.7 (2012/02/26 05:15:00.00) 34.9 (2012/02/26 05:30:00.00) 36.2 (2012/02/26 05:45:00.00) 39.7 (2012/02/26 06:00:00.00) 50.0 (2012/02/26 06:15:00.00) 55.0 (2012/02/26 06:30:00.00) 52.5 (2012/02/26 06:45:00.00) 54.7 (2012/02/26 07:00:00.00) 54.3 (2012/02/26 07:15:00.00) 47.2 (2012/02/26 07:30:00.00) 48.1 52.7 (2012/02/26 07:45:00.00) (2012/02/26 08:00:00.00) 61.3 (2012/02/26 08:15:00.00) 50.3 (2012/02/26 08:30:00.00) 62.6 (2012/02/26 08:45:00.00) 61.4 (2012/02/26 09:00:00.00) 62.7 (2012/02/26 09:15:00.00) 54.4 (2012/02/26 09:30:00.00) 56.8 (2012/02/26 09:45:00.00) 58.2 (2012/02/26 10:00:00.00) 55.4 (2012/02/26 10:15:00.00) 49.8 (2012/02/26 10:30:00.00) 50.4 (2012/02/26 10:45:00.00) 49.1 (2012/02/26 11:00:00.00) 55.5 (2012/02/26 11:15:00.00) 48.3 (2012/02/26 11:30:00.00) 61.0 (2012/02/26 11:45:00.00) 44.8 (2012/02/26 12:00:00.00) 44.4 (2012/02/26 12:15:00.00) 50.7 (2012/02/26 12:30:00.00) 48.9 (2012/02/26 12:45:00.00) 55.3 (2012/02/26 13:00:00.00) 44.5 (2012/02/26 13:15:00.00) 47.4 (2012/02/26 13:30:00.00) 50.6 (2012/02/26 13:45:00.00) 50.2 (2012/02/26 14:00:00.00) 48.3 (2012/02/26 14:15:00.00) 51.0 (2012/02/26 14:30:00.00) 51.2 (2012/02/26 14:45:00.00) 50.2 (2012/02/26 15:00:00.00) 57.4 (2012/02/26 15:15:00.00) 60.8 (2012/02/26 15:30:00.00) 47.2 (2012/02/26 15:45:00.00) 47.4 (2012/02/26 16:00:00.00) 49.5 61.9 (2012/02/26 16:15:00.00)

LA90 36.5 36.3 39.9 36.5 34.6 33.7 35.2 31.8 30.5 27.2 25.0 27.4 27.6 25.8 25.7 26.3 25.8 25.8 30.0 25.3 25.2 22.0 27.8 26.1 24.6 31.7 35.2 38.7 42.6 44.1 42.9 40.0 40.1 41.5 43.5 38.7 41.0 40.0 40.4 41.3 41.0 38.7 38.6 38.3 38.3 39.3 39.2 39.4 38.4 38.6 38.1 41.5 40.2 40.2 38.5 38.8 39.3 40.3 38.5 39.8 41.3 40.6 39.6 39.4 40.6 41.0 43.4 43.7

LAMAX 54.3 53.7 54.1 55.6 51.3 48.6 48.7 49.8 52.6 49.6 51.5 44.6 47.0 51.3 45.5 47.4 43.5 46.4 45.9 47.9 46.4 47.0 48.8 55.2 51.7 54.8 70.1 74.6 71.8 73.0 71.8 63.3 63.6 73.3 85.3 67.3 84.1 82.8 85.0 73.0 79.5 79.9 75.6 63.2 65.4 65.7 74.6 65.7 83.0 68.9 63.2 62.9 62.5 77.1 71.3 68.6 70.8 71.0 67.9 74.1 68.3 72.3 83.0 86.8 72.0 70.3 69.8 84.7

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/26 16:30:00.00) 51.5 (2012/02/26 16:45:00.00) 47.9 (2012/02/26 17:00:00.00) 46.0 (2012/02/26 17:15:00.00) 46.1 (2012/02/26 17:30:00.00) 54.7 (2012/02/26 17:45:00.00) 60.2 (2012/02/26 18:00:00.00) 51.8 (2012/02/26 18:15:00.00) 51.3 (2012/02/26 18:30:00.00) 60.7 (2012/02/26 18:45:00.00) 58.5 (2012/02/26 19:00:00.00) 55.8 (2012/02/26 19:15:00.00) 53.2 (2012/02/26 19:30:00.00) 56.7 (2012/02/26 19:45:00.00) 45.2 (2012/02/26 20:00:00.00) 42.6 (2012/02/26 20:15:00.00) 41.9 (2012/02/26 20:30:00.00) 58.7 (2012/02/26 20:45:00.00) 61.0 (2012/02/26 21:00:00.00) 60.8 (2012/02/26 21:15:00.00) 41.9 (2012/02/26 21:30:00.00) 43.1 (2012/02/26 21:45:00.00) 43.8 (2012/02/26 22:00:00.00) 41.4 (2012/02/26 22:15:00.00) 41.7 (2012/02/26 22:30:00.00) 39.7 (2012/02/26 22:45:00.00) 38.4 (2012/02/26 23:00:00.00) 37.6 (2012/02/26 23:15:00.00) 36.6 (2012/02/26 23:30:00.00) 37.2 (2012/02/26 23:45:00.00) 35.4 (2012/02/27 00:00:00.00) 36.5 (2012/02/27 00:15:00.00) 34.3 (2012/02/27 00:30:00.00) 34.5 34.6 (2012/02/27 00:45:00.00) (2012/02/27 01:00:00.00) 34.3 (2012/02/27 01:15:00.00) 34.5 (2012/02/27 01:30:00.00) 31.8 (2012/02/27 01:45:00.00) 33.5 (2012/02/27 02:00:00.00) 35.0 (2012/02/27 02:15:00.00) 34.6 (2012/02/27 02:30:00.00) 33.2 (2012/02/27 02:45:00.00) 32.5 (2012/02/27 03:00:00.00) 34.0 (2012/02/27 03:15:00.00) 36.3 (2012/02/27 03:30:00.00) 34.4 (2012/02/27 03:45:00.00) 35.0 (2012/02/27 04:00:00.00) 36.2 (2012/02/27 04:15:00.00) 35.4 (2012/02/27 04:30:00.00) 36.3 (2012/02/27 04:45:00.00) 35.5 (2012/02/27 05:00:00.00) 37.5 (2012/02/27 05:15:00.00) 36.9 (2012/02/27 05:30:00.00) 38.4 (2012/02/27 05:45:00.00) 41.6 (2012/02/27 06:00:00.00) 48.8 (2012/02/27 06:15:00.00) 51.6 (2012/02/27 06:30:00.00) 51.0 (2012/02/27 06:45:00.00) 50.8 (2012/02/27 07:00:00.00) 49.9 (2012/02/27 07:15:00.00) 50.7 (2012/02/27 07:30:00.00) 54.4 (2012/02/27 07:45:00.00) 55.8 (2012/02/27 08:00:00.00) 62.0 (2012/02/27 08:15:00.00) 64.0 (2012/02/27 08:30:00.00) 52.1 (2012/02/27 08:45:00.00) 67.6 (2012/02/27 09:00:00.00) 60.8 52.9 (2012/02/27 09:15:00.00)

LA90 43.0 42.7 41.8 40.6 40.2 40.8 39.0 39.0 39.9 38.8 39.8 39.2 41.2 38.1 37.7 37.1 37.5 39.8 37.2 36.9 39.0 37.2 34.5 35.6 32.5 33.2 32.1 30.8 31.1 28.8 29.5 28.0 28.3 29.1 30.4 30.4 28.7 28.6 29.5 29.9 30.4 29.3 30.8 31.7 30.4 29.3 31.0 31.3 31.0 29.5 31.4 30.8 33.9 37.7 38.1 41.5 43.2 46.9 46.8 45.0 45.3 45.8 46.3 46.1 46.0 46.3 44.3 43.9

LAMAX 70.9 71.0 72.1 70.9 77.2 80.9 68.2 73.8 84.3 75.5 77.5 75.6 73.8 59.8 54.0 50.1 80.5 82.2 83.7 50.6 55.3 62.5 58.5 68.1 64.6 59.4 49.9 52.9 48.7 51.7 47.6 48.8 46.1 48.6 47.6 46.3 43.5 48.1 45.5 47.4 43.9 47.6 45.4 48.3 47.4 46.0 48.9 51.3 46.7 47.0 50.8 48.8 49.4 54.5 71.3 69.7 67.4 67.7 65.3 66.3 70.7 77.7 80.1 84.7 80.6 86.9 83.7 78.9

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/27 09:30:00.00) 56.7 (2012/02/27 09:45:00.00) 62.4 (2012/02/27 10:00:00.00) 54.7 (2012/02/27 10:15:00.00) 53.6 (2012/02/27 10:30:00.00) 49.7 (2012/02/27 10:45:00.00) 49.5 (2012/02/27 11:00:00.00) 56.8 (2012/02/27 11:15:00.00) 58.7 (2012/02/27 11:30:00.00) 59.0 (2012/02/27 11:45:00.00) 59.2 (2012/02/27 12:00:00.00) 48.1 (2012/02/27 12:15:00.00) 50.2 (2012/02/27 12:30:00.00) 48.5 (2012/02/27 12:45:00.00) 57.7 (2012/02/27 13:00:00.00) 51.5 (2012/02/27 13:15:00.00) 50.5 (2012/02/27 13:30:00.00) 56.0 (2012/02/27 13:45:00.00) 52.5 (2012/02/27 14:00:00.00) 62.9 (2012/02/27 14:15:00.00) 48.4 (2012/02/27 14:30:00.00) 48.3 (2012/02/27 14:45:00.00) 48.5 (2012/02/27 15:00:00.00) 49.0 (2012/02/27 15:15:00.00) 52.4 (2012/02/27 15:30:00.00) 48.8 (2012/02/27 15:45:00.00) 48.6 (2012/02/27 16:00:00.00) 50.2 (2012/02/27 16:15:00.00) 61.6 (2012/02/27 16:30:00.00) 49.5 (2012/02/27 16:45:00.00) 56.1 (2012/02/27 17:00:00.00) 47.9 (2012/02/27 17:15:00.00) 47.5 (2012/02/27 17:30:00.00) 53.4 47.6 (2012/02/27 17:45:00.00) (2012/02/27 18:00:00.00) 46.6 (2012/02/27 18:15:00.00) 63.4 (2012/02/27 18:30:00.00) 65.8 (2012/02/27 18:45:00.00) 60.4 (2012/02/27 19:00:00.00) 58.7 (2012/02/27 19:15:00.00) 54.4 (2012/02/27 19:30:00.00) 57.8 (2012/02/27 19:45:00.00) 46.2 (2012/02/27 20:00:00.00) 51.3 (2012/02/27 20:15:00.00) 43.2 (2012/02/27 20:30:00.00) 54.4 (2012/02/27 20:45:00.00) 65.4 (2012/02/27 21:00:00.00) 41.4 (2012/02/27 21:15:00.00) 41.6 (2012/02/27 21:30:00.00) 40.9 (2012/02/27 21:45:00.00) 41.7 (2012/02/27 22:00:00.00) 41.7 (2012/02/27 22:15:00.00) 41.5 (2012/02/27 22:30:00.00) 40.5 (2012/02/27 22:45:00.00) 40.2 (2012/02/27 23:00:00.00) 39.5 (2012/02/27 23:15:00.00) 38.1 (2012/02/27 23:30:00.00) 39.2 (2012/02/27 23:45:00.00) 37.3 (2012/02/28 00:00:00.00) 36.4 (2012/02/28 00:15:00.00) 33.8 (2012/02/28 00:30:00.00) 33.1 (2012/02/28 00:45:00.00) 33.3 (2012/02/28 01:00:00.00) 32.7 (2012/02/28 01:15:00.00) 33.6 (2012/02/28 01:30:00.00) 32.6 (2012/02/28 01:45:00.00) 31.0 (2012/02/28 02:00:00.00) 29.7 32.1 (2012/02/28 02:15:00.00)

LA90 44.4 44.8 43.0 43.3 41.8 42.6 42.9 41.9 41.9 43.4 41.5 42.0 41.6 42.7 41.5 43.2 44.9 42.0 42.8 43.3 42.0 43.3 42.7 42.5 42.9 43.4 42.9 43.4 44.7 44.8 44.8 43.6 44.5 44.5 42.9 44.5 44.2 44.1 41.8 43.0 42.9 42.8 43.1 38.9 39.2 40.1 38.6 38.3 37.3 37.6 38.4 38.0 34.7 35.1 35.0 33.1 34.0 32.9 29.9 28.1 26.0 25.2 25.7 25.8 25.8 25.8 24.3 25.6

LAMAX 76.6 83.4 77.1 75.7 70.3 78.8 77.3 81.4 82.4 80.1 75.0 72.9 74.0 76.8 75.7 76.3 71.8 74.6 83.3 73.7 77.6 74.1 72.5 77.1 77.7 78.8 77.1 84.7 74.3 82.5 73.8 75.0 80.2 74.5 62.1 82.5 83.7 84.2 79.6 75.9 78.9 56.7 70.0 66.5 77.3 88.4 50.1 53.5 49.6 50.7 54.5 50.3 50.3 51.5 49.9 48.3 51.2 46.9 47.1 46.8 47.1 50.1 56.7 50.0 46.8 44.8 40.6 46.0

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/28 02:30:00.00) 32.2 (2012/02/28 02:45:00.00) 30.0 (2012/02/28 03:00:00.00) 28.4 (2012/02/28 03:15:00.00) 33.0 (2012/02/28 03:30:00.00) 33.3 (2012/02/28 03:45:00.00) 30.9 (2012/02/28 04:00:00.00) 34.1 (2012/02/28 04:15:00.00) 31.2 (2012/02/28 04:30:00.00) 34.8 (2012/02/28 04:45:00.00) 31.4 (2012/02/28 05:00:00.00) 36.6 (2012/02/28 05:15:00.00) 36.3 (2012/02/28 05:30:00.00) 38.0 (2012/02/28 05:45:00.00) 40.0 (2012/02/28 06:00:00.00) 45.0 (2012/02/28 06:15:00.00) 50.6 (2012/02/28 06:30:00.00) 58.3 (2012/02/28 06:45:00.00) 52.4 (2012/02/28 07:00:00.00) 55.3 (2012/02/28 07:15:00.00) 50.4 (2012/02/28 07:30:00.00) 54.8 (2012/02/28 07:45:00.00) 50.5 (2012/02/28 08:00:00.00) 61.2 (2012/02/28 08:15:00.00) 50.6 (2012/02/28 08:30:00.00) 60.6 (2012/02/28 08:45:00.00) 63.8 (2012/02/28 09:00:00.00) 61.8 (2012/02/28 09:15:00.00) 53.3 (2012/02/28 09:30:00.00) 56.1 (2012/02/28 09:45:00.00) 49.1 (2012/02/28 10:00:00.00) 62.3 (2012/02/28 10:15:00.00) 53.6 (2012/02/28 10:30:00.00) 58.8 49.6 (2012/02/28 10:45:00.00) (2012/02/28 11:00:00.00) 53.7 (2012/02/28 11:15:00.00) 52.1 (2012/02/28 11:30:00.00) 47.9 (2012/02/28 11:45:00.00) 62.7 (2012/02/28 12:00:00.00) 48.8 (2012/02/28 12:15:00.00) 55.0 (2012/02/28 12:30:00.00) 52.6 (2012/02/28 12:45:00.00) 58.8 (2012/02/28 13:00:00.00) 58.8 (2012/02/28 13:15:00.00) 46.1 (2012/02/28 13:30:00.00) 46.5 (2012/02/28 13:45:00.00) 66.6 (2012/02/28 14:00:00.00) 59.5 (2012/02/28 14:15:00.00) 52.6 (2012/02/28 14:30:00.00) 65.0 (2012/02/28 14:45:00.00) 60.5 (2012/02/28 15:00:00.00) 62.9 (2012/02/28 15:15:00.00) 60.9 (2012/02/28 15:30:00.00) 48.7 (2012/02/28 15:45:00.00) 63.7 (2012/02/28 16:00:00.00) 50.6 (2012/02/28 16:15:00.00) 64.0 (2012/02/28 16:30:00.00) 46.4 (2012/02/28 16:45:00.00) 47.6 (2012/02/28 17:00:00.00) 55.5 (2012/02/28 17:15:00.00) 47.4 (2012/02/28 17:30:00.00) 46.9 (2012/02/28 17:45:00.00) 63.8 (2012/02/28 18:00:00.00) 44.6 (2012/02/28 18:15:00.00) 43.5 (2012/02/28 18:30:00.00) 42.6 (2012/02/28 18:45:00.00) 56.7 (2012/02/28 19:00:00.00) 57.1 55.2 (2012/02/28 19:15:00.00)

LA90 26.3 26.5 26.0 26.5 26.4 26.2 25.9 26.2 25.9 26.2 30.6 30.1 33.4 34.3 33.1 41.4 41.7 44.4 45.0 45.3 46.1 45.3 46.4 46.5 47.1 45.8 46.1 44.9 45.2 43.8 44.1 44.6 44.6 44.1 45.8 46.0 43.2 44.1 42.9 43.1 42.7 47.0 43.9 41.8 42.3 43.4 43.1 43.4 44.5 42.5 42.6 43.6 42.0 43.0 43.6 43.3 43.1 42.9 43.2 43.3 43.5 43.8 42.2 40.6 40.2 39.6 39.5 39.6

LAMAX 47.7 41.4 42.1 46.2 46.7 44.1 48.3 46.0 46.7 44.8 50.7 50.4 52.4 51.6 63.9 68.0 81.6 72.4 69.1 71.2 69.4 67.5 80.0 71.7 84.4 85.3 84.3 73.8 78.7 73.1 84.5 74.1 80.1 74.4 72.7 71.9 70.6 83.2 71.2 75.7 74.9 75.7 84.9 73.1 72.0 87.3 82.3 71.2 86.2 80.5 83.8 83.6 75.3 85.5 69.2 84.0 71.3 78.5 77.9 76.1 70.4 87.3 53.5 52.4 49.2 79.4 79.5 78.0

POSITION 2 ‐ ST. ANDREWS HALL Date/Time LAeq (2012/02/28 19:30:00.00) 42.0 (2012/02/28 19:45:00.00) 62.5 (2012/02/28 20:00:00.00) 41.5 (2012/02/28 20:15:00.00) 40.2 (2012/02/28 20:30:00.00) 54.5 (2012/02/28 20:45:00.00) 41.6 (2012/02/28 21:00:00.00) 59.2 (2012/02/28 21:15:00.00) 39.3 (2012/02/28 21:30:00.00) 40.7 (2012/02/28 21:45:00.00) 39.9 (2012/02/28 22:00:00.00) 39.9 (2012/02/28 22:15:00.00) 38.6 (2012/02/28 22:30:00.00) 39.6 (2012/02/28 22:45:00.00) 37.1 (2012/02/28 23:00:00.00) 36.5 (2012/02/28 23:15:00.00) 38.2 (2012/02/28 23:30:00.00) 36.3 (2012/02/28 23:45:00.00) 36.1 (2012/02/29 00:00:00.00) 35.9 (2012/02/29 00:15:00.00) 31.8 (2012/02/29 00:30:00.00) 30.6 (2012/02/29 00:45:00.00) 34.1 (2012/02/29 01:00:00.00) 31.3 (2012/02/29 01:15:00.00) 27.5 (2012/02/29 01:30:00.00) 28.7 (2012/02/29 01:45:00.00) 28.0 (2012/02/29 02:00:00.00) 31.0 (2012/02/29 02:15:00.00) 31.0 (2012/02/29 02:30:00.00) 26.9 (2012/02/29 02:45:00.00) 29.1 (2012/02/29 03:00:00.00) 27.7 (2012/02/29 03:15:00.00) 28.9 (2012/02/29 03:30:00.00) 31.3 28.9 (2012/02/29 03:45:00.00) (2012/02/29 04:00:00.00) 30.2 (2012/02/29 04:15:00.00) 31.7 (2012/02/29 04:30:00.00) 33.4 (2012/02/29 04:45:00.00) 33.8 (2012/02/29 05:00:00.00) 33.0 (2012/02/29 05:15:00.00) 35.6 (2012/02/29 05:30:00.00) 37.1 (2012/02/29 05:45:00.00) 39.2 (2012/02/29 06:00:00.00) 46.5 (2012/02/29 06:15:00.00) 51.0 (2012/02/29 06:30:00.00) 47.2 (2012/02/29 06:45:00.00) 60.3 (2012/02/29 07:00:00.00) 49.0 (2012/02/29 07:15:00.00) 49.4 (2012/02/29 07:30:00.00) 48.4 (2012/02/29 07:45:00.00) 48.9 (2012/02/29 08:00:00.00) 60.8 (2012/02/29 08:15:00.00) 58.0 (2012/02/29 08:30:00.00) 50.5 (2012/02/29 08:45:00.00) 53.3 (2012/02/29 09:00:00.00) 59.8 (2012/02/29 09:15:00.00) 54.5 (2012/02/29 09:30:00.00) 53.8 (2012/02/29 09:45:00.00) 58.6 (2012/02/29 10:00:00.00) 50.9 (2012/02/29 10:15:00.00) 49.5 (2012/02/29 10:30:00.00) 50.1 (2012/02/29 10:45:00.00) 49.8 (2012/02/29 11:00:00.00) 51.2

LA90 37.7 38.0 37.4 35.7 36.7 38.3 34.9 35.5 35.7 35.5 34.4 33.5 35.4 30.5 29.4 31.3 24.9 24.9 25.3 22.5 21.7 22.1 21.8 21.3 20.7 19.9 20.5 21.1 20.4 21.2 21.6 21.5 22.1 21.8 22.0 23.9 22.9 23.9 26.0 30.3 31.4 33.2 37.4 40.8 40.3 42.3 43.0 44.7 44.9 44.6 45.5 44.4 44.9 45.0 44.0 44.4 43.8 43.5 41.6 41.6 42.3 42.0 41.4

LAMAX 54.5 83.0 53.8 48.8 77.4 50.6 82.9 47.7 51.8 48.2 51.5 49.2 48.1 47.6 45.0 51.1 45.4 51.9 45.6 42.9 43.8 52.4 47.2 39.2 43.2 44.2 45.8 47.6 42.6 45.7 43.3 45.7 43.8 46.4 44.0 45.1 47.7 61.7 51.2 44.3 47.0 61.8 62.8 68.4 62.3 82.7 70.0 64.6 61.5 64.2 82.6 79.2 73.4 75.6 81.1 73.5 77.1 77.4 72.9 74.1 77.5 75.0 72.2

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/22 10:00:00.00) 48.1 44.2 (2012/02/22 10:15:00.00) 48.5 44.9 (2012/02/22 10:30:00.00) 57.5 45.9 (2012/02/22 10:45:00.00) 59.0 47.5 (2012/02/22 11:00:00.00) 50.5 44.9 (2012/02/22 11:15:00.00) 54.6 46.4 (2012/02/22 11:30:00.00) 61.0 46.1 (2012/02/22 11:45:00.00) 61.6 47.4 (2012/02/22 12:00:00.00) 50.9 47.5 (2012/02/22 12:15:00.00) 48.9 45.9 (2012/02/22 12:30:00.00) 51.6 44.9 (2012/02/22 12:45:00.00) 53.9 45.7 (2012/02/22 13:00:00.00) 51.3 46.2 (2012/02/22 13:15:00.00) 53.2 47.0 (2012/02/22 13:30:00.00) 51.2 46.3 (2012/02/22 13:45:00.00) 52.7 48.9 (2012/02/22 14:00:00.00) 52.5 49.0 (2012/02/22 14:15:00.00) 53.3 47.2 (2012/02/22 14:30:00.00) 51.1 46.9 (2012/02/22 14:45:00.00) 50.0 46.0 (2012/02/22 15:00:00.00) 48.9 46.8 (2012/02/22 15:15:00.00) 52.2 47.2 (2012/02/22 15:30:00.00) 53.2 48.1 (2012/02/22 15:45:00.00) 51.5 47.1 (2012/02/22 16:00:00.00) 51.2 46.8 (2012/02/22 16:15:00.00) 51.5 47.2 (2012/02/22 16:30:00.00) 51.6 48.5 (2012/02/22 16:45:00.00) 51.4 48.3 (2012/02/22 17:00:00.00) 49.8 46.2 (2012/02/22 17:15:00.00) 51.5 46.5 (2012/02/22 17:30:00.00) 51.8 46.1 (2012/02/22 17:45:00.00) 51.6 46.2 (2012/02/22 18:00:00.00) 53.2 45.4 (2012/02/22 18:15:00.00) 49.4 44.2 (2012/02/22 18:30:00.00) 50.0 44.8 (2012/02/22 18:45:00.00) 49.4 45.0 (2012/02/22 19:00:00.00) 47.8 43.6 (2012/02/22 19:15:00.00) 45.6 43.5 (2012/02/22 19:30:00.00) 49.6 44.5 (2012/02/22 19:45:00.00) 49.6 43.0 (2012/02/22 20:00:00.00) 45.3 41.5 (2012/02/22 20:15:00.00) 52.4 42.6 (2012/02/22 20:30:00.00) 49.2 42.2 (2012/02/22 20:45:00.00) 45.2 42.2 (2012/02/22 21:00:00.00) 45.9 41.3 (2012/02/22 21:15:00.00) 49.0 42.1 (2012/02/22 21:30:00.00) 43.6 40.1 (2012/02/22 21:45:00.00) 42.6 39.4 (2012/02/22 22:00:00.00) 40.6 38.0 (2012/02/22 22:15:00.00) 39.6 37.7 (2012/02/22 22:30:00.00) 40.2 37.0 (2012/02/22 22:45:00.00) 40.8 37.8 (2012/02/22 23:00:00.00) 39.8 37.5 (2012/02/22 23:15:00.00) 39.5 37.1 (2012/02/22 23:30:00.00) 39.3 36.5 (2012/02/22 23:45:00.00) 38.6 35.6 (2012/02/23 00:00:00.00) 37.9 35.7 (2012/02/23 00:15:00.00) 40.2 35.8 (2012/02/23 00:30:00.00) 38.7 35.0 (2012/02/23 00:45:00.00) 38.2 35.1 (2012/02/23 01:00:00.00) 37.9 34.6 (2012/02/23 01:15:00.00) 34.7 32.0 (2012/02/23 01:30:00.00) 34.5 31.3 (2012/02/23 01:45:00.00) 33.6 31.2 (2012/02/23 02:00:00.00) 33.8 31.8 (2012/02/23 02:15:00.00) 34.5 31.4 (2012/02/23 02:30:00.00) 34.6 32.3 (2012/02/23 02:45:00.00) 34.6 31.2 (2012/02/23 03:00:00.00) 32.7 30.7 (2012/02/23 03:15:00.00) 33.1 30.8

LAMAX 61.4 68.3 81.7 80.6 71.9 72.5 82.3 81.2 71.0 65.7 69.8 72.7 66.1 68.7 64.8 66.4 67.1 70.3 65.6 66.6 61.7 73.0 74.2 67.6 65.0 65.0 64.5 63.7 69.9 67.2 67.2 67.3 67.3 65.5 70.8 64.4 65.7 57.5 68.3 65.9 62.5 71.6 73.3 59.9 63.9 71.2 58.8 59.5 52.3 51.0 53.6 52.7 51.0 56.3 55.0 50.5 48.9 55.8 52.2 54.6 54.0 48.3 46.6 52.3 46.9 55.0 44.2 42.0 42.8 46.6

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/23 03:30:00.00) 32.3 30.8 (2012/02/23 03:45:00.00) 34.1 31.5 (2012/02/23 04:00:00.00) 36.6 33.7 (2012/02/23 04:15:00.00) 34.4 32.4 (2012/02/23 04:30:00.00) 34.0 31.9 (2012/02/23 04:45:00.00) 34.5 32.0 (2012/02/23 05:00:00.00) 33.6 31.8 (2012/02/23 05:15:00.00) 35.8 33.1 (2012/02/23 05:30:00.00) 38.6 35.9 (2012/02/23 05:45:00.00) 38.4 36.0 (2012/02/23 06:00:00.00) 38.3 36.0 (2012/02/23 06:15:00.00) 49.7 39.2 (2012/02/23 06:30:00.00) 51.8 41.0 (2012/02/23 06:45:00.00) 55.7 49.6 (2012/02/23 07:00:00.00) 52.7 43.8 (2012/02/23 07:15:00.00) 48.7 42.7 (2012/02/23 07:30:00.00) 44.6 42.6 (2012/02/23 07:45:00.00) 50.0 43.7 (2012/02/23 08:00:00.00) 53.9 47.6 (2012/02/23 08:15:00.00) 52.3 47.5 (2012/02/23 08:30:00.00) 54.7 47.2 (2012/02/23 08:45:00.00) 54.6 49.9 (2012/02/23 09:00:00.00) 53.2 44.7 (2012/02/23 09:15:00.00) 49.0 44.0 (2012/02/23 09:30:00.00) 50.7 43.6 (2012/02/23 09:45:00.00) 52.3 42.9 (2012/02/23 10:00:00.00) 53.0 42.2 (2012/02/23 10:15:00.00) 45.8 40.0 (2012/02/23 10:30:00.00) 44.8 40.9 (2012/02/23 10:45:00.00) 47.9 41.1 (2012/02/23 11:00:00.00) 53.1 40.3 (2012/02/23 11:15:00.00) 47.5 42.8 (2012/02/23 11:30:00.00) 49.7 42.9 (2012/02/23 11:45:00.00) 43.7 40.6 (2012/02/23 12:00:00.00) 56.8 43.7 (2012/02/23 12:15:00.00) 57.2 42.6 (2012/02/23 12:30:00.00) 58.0 43.1 (2012/02/23 12:45:00.00) 46.5 43.2 (2012/02/23 13:00:00.00) 49.6 42.6 (2012/02/23 13:15:00.00) 44.4 39.9 (2012/02/23 13:30:00.00) 44.6 41.3 (2012/02/23 13:45:00.00) 45.2 41.7 (2012/02/23 14:00:00.00) 46.2 41.0 (2012/02/23 14:15:00.00) 50.1 40.7 (2012/02/23 14:30:00.00) 47.2 40.0 (2012/02/23 14:45:00.00) 45.4 40.7 (2012/02/23 15:00:00.00) 48.9 42.5 (2012/02/23 15:15:00.00) 43.3 40.2 (2012/02/23 15:30:00.00) 43.6 40.6 (2012/02/23 15:45:00.00) 48.4 41.7 (2012/02/23 16:00:00.00) 47.4 43.1 (2012/02/23 16:15:00.00) 46.4 41.6 (2012/02/23 16:30:00.00) 49.6 42.1 (2012/02/23 16:45:00.00) 52.8 45.5 (2012/02/23 17:00:00.00) 51.8 46.1 (2012/02/23 17:15:00.00) 50.7 45.1 (2012/02/23 17:30:00.00) 48.9 43.5 (2012/02/23 17:45:00.00) 47.8 42.6 (2012/02/23 18:00:00.00) 48.6 41.5 (2012/02/23 18:15:00.00) 49.0 42.3 (2012/02/23 18:30:00.00) 50.2 42.2 (2012/02/23 18:45:00.00) 53.9 40.9 (2012/02/23 19:00:00.00) 50.4 43.6 (2012/02/23 19:15:00.00) 47.7 43.2 (2012/02/23 19:30:00.00) 48.7 43.3 (2012/02/23 19:45:00.00) 45.1 40.8 (2012/02/23 20:00:00.00) 45.2 40.3 (2012/02/23 20:15:00.00) 49.5 39.0 (2012/02/23 20:30:00.00) 48.7 40.5 (2012/02/23 20:45:00.00) 43.6 39.6

LAMAX 38.6 52.3 43.9 48.0 46.8 44.7 41.0 42.8 48.6 47.9 50.4 69.7 64.8 69.3 69.6 65.7 66.6 68.8 71.7 63.7 72.1 71.7 75.3 65.4 64.9 73.1 73.4 70.5 68.1 76.8 72.3 66.7 71.3 63.5 71.0 73.1 74.6 60.9 70.1 62.9 60.6 60.9 66.5 72.7 69.4 62.4 66.4 64.1 62.9 69.8 68.7 65.1 69.7 67.7 64.9 72.6 66.3 69.0 65.7 66.2 68.7 71.2 72.1 61.1 63.5 63.8 60.6 69.9 66.5 54.1

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/23 21:00:00.00) 44.8 39.0 (2012/02/23 21:15:00.00) 41.7 39.8 (2012/02/23 21:30:00.00) 40.7 39.2 (2012/02/23 21:45:00.00) 40.2 37.9 (2012/02/23 22:00:00.00) 39.3 37.3 (2012/02/23 22:15:00.00) 39.7 37.3 (2012/02/23 22:30:00.00) 37.3 35.5 (2012/02/23 22:45:00.00) 37.4 35.6 (2012/02/23 23:00:00.00) 36.7 34.4 (2012/02/23 23:15:00.00) 37.2 35.1 (2012/02/23 23:30:00.00) 37.7 33.5 (2012/02/23 23:45:00.00) 33.8 31.3 (2012/02/24 00:00:00.00) 33.6 31.3 (2012/02/24 00:15:00.00) 34.6 31.6 (2012/02/24 00:30:00.00) 35.1 33.5 (2012/02/24 00:45:00.00) 34.7 31.8 (2012/02/24 01:00:00.00) 35.5 31.8 (2012/02/24 01:15:00.00) 34.5 31.7 (2012/02/24 01:30:00.00) 35.0 31.8 (2012/02/24 01:45:00.00) 35.3 30.9 (2012/02/24 02:00:00.00) 35.7 33.6 (2012/02/24 02:15:00.00) 35.3 31.6 (2012/02/24 02:30:00.00) 35.9 31.9 (2012/02/24 02:45:00.00) 34.5 31.5 (2012/02/24 03:00:00.00) 35.2 31.2 (2012/02/24 03:15:00.00) 35.4 32.5 (2012/02/24 03:30:00.00) 37.0 34.0 (2012/02/24 03:45:00.00) 37.3 33.9 (2012/02/24 04:00:00.00) 36.4 32.8 (2012/02/24 04:15:00.00) 35.6 33.0 (2012/02/24 04:30:00.00) 35.7 32.9 (2012/02/24 04:45:00.00) 35.8 33.4 (2012/02/24 05:00:00.00) 35.5 32.8 (2012/02/24 05:15:00.00) 36.5 34.0 (2012/02/24 05:30:00.00) 37.5 35.0 (2012/02/24 05:45:00.00) 38.3 35.1 (2012/02/24 06:00:00.00) 38.9 35.9 (2012/02/24 06:15:00.00) 46.1 38.3 (2012/02/24 06:30:00.00) 43.1 38.7 (2012/02/24 06:45:00.00) 49.9 41.3 (2012/02/24 07:00:00.00) 51.8 47.0 (2012/02/24 07:15:00.00) 48.0 42.6 (2012/02/24 07:30:00.00) 44.5 42.1 (2012/02/24 07:45:00.00) 48.8 44.3 (2012/02/24 08:00:00.00) 50.2 44.3 (2012/02/24 08:15:00.00) 47.9 44.8 (2012/02/24 08:30:00.00) 50.6 45.7 (2012/02/24 08:45:00.00) 51.2 44.8 (2012/02/24 09:00:00.00) 49.6 43.1 (2012/02/24 09:15:00.00) 50.7 44.2 (2012/02/24 09:30:00.00) 49.6 43.3 (2012/02/24 09:45:00.00) 46.5 41.7 (2012/02/24 10:00:00.00) 49.0 42.8 (2012/02/24 10:15:00.00) 48.8 43.3 (2012/02/24 10:30:00.00) 49.1 41.7 (2012/02/24 10:45:00.00) 46.3 41.5 (2012/02/24 11:00:00.00) 46.1 41.5 (2012/02/24 11:15:00.00) 50.7 43.1 (2012/02/24 11:30:00.00) 53.8 40.7 (2012/02/24 11:45:00.00) 45.5 41.2 (2012/02/24 12:00:00.00) 54.2 41.8 (2012/02/24 12:15:00.00) 44.2 41.7 (2012/02/24 12:30:00.00) 47.2 42.2 (2012/02/24 12:45:00.00) 48.6 42.0 (2012/02/24 13:00:00.00) 51.0 43.2 (2012/02/24 13:15:00.00) 53.2 43.2 (2012/02/24 13:30:00.00) 51.0 42.1 (2012/02/24 13:45:00.00) 46.6 41.0 (2012/02/24 14:00:00.00) 44.5 41.0 (2012/02/24 14:15:00.00) 44.1 40.7

LAMAX 65.0 52.3 49.0 52.3 50.5 50.3 49.0 51.9 45.7 42.8 59.2 44.9 53.2 44.4 43.6 47.6 49.7 48.6 50.2 52.6 48.5 51.7 53.1 48.3 54.3 53.2 54.9 48.4 52.8 48.2 50.6 48.2 53.1 45.3 47.6 56.7 57.8 66.8 56.5 65.8 65.9 72.4 62.7 66.8 67.4 64.7 72.2 65.4 68.2 70.3 72.1 65.9 64.8 64.5 70.5 60.7 61.7 69.3 77.5 67.2 73.1 64.4 65.2 65.8 73.1 71.4 72.1 70.2 68.9 69.0

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/24 14:30:00.00) 44.3 41.6 (2012/02/24 14:45:00.00) 48.7 42.1 (2012/02/24 15:00:00.00) 45.0 41.6 (2012/02/24 15:15:00.00) 44.4 41.2 (2012/02/24 15:30:00.00) 50.0 42.2 (2012/02/24 15:45:00.00) 49.4 43.8 (2012/02/24 16:00:00.00) 63.0 43.6 (2012/02/24 16:15:00.00) 53.3 45.9 (2012/02/24 16:30:00.00) 49.1 43.3 (2012/02/24 16:45:00.00) 49.5 44.4 (2012/02/24 17:00:00.00) 51.9 43.5 (2012/02/24 17:15:00.00) 53.3 44.2 (2012/02/24 17:30:00.00) 50.1 45.0 (2012/02/24 17:45:00.00) 46.2 42.7 (2012/02/24 18:00:00.00) 46.4 42.7 (2012/02/24 18:15:00.00) 52.5 42.1 (2012/02/24 18:30:00.00) 53.9 44.2 (2012/02/24 18:45:00.00) 47.1 41.3 (2012/02/24 19:00:00.00) 44.8 40.4 (2012/02/24 19:15:00.00) 50.6 43.7 (2012/02/24 19:30:00.00) 47.3 42.3 (2012/02/24 19:45:00.00) 48.7 42.0 (2012/02/24 20:00:00.00) 52.6 39.4 (2012/02/24 20:15:00.00) 52.0 40.0 (2012/02/24 20:30:00.00) 44.8 38.1 (2012/02/24 20:45:00.00) 42.6 38.7 (2012/02/24 21:00:00.00) 45.0 38.8 (2012/02/24 21:15:00.00) 42.9 38.3 (2012/02/24 21:30:00.00) 40.9 38.0 (2012/02/24 21:45:00.00) 43.3 38.4 (2012/02/24 22:00:00.00) 43.8 36.3 (2012/02/24 22:15:00.00) 39.4 36.5 (2012/02/24 22:30:00.00) 38.4 36.1 (2012/02/24 22:45:00.00) 38.2 36.0 (2012/02/24 23:00:00.00) 38.2 36.1 (2012/02/24 23:15:00.00) 38.4 35.6 (2012/02/24 23:30:00.00) 38.2 35.1 (2012/02/24 23:45:00.00) 36.6 33.1 (2012/02/25 00:00:00.00) 36.2 33.9 (2012/02/25 00:15:00.00) 36.8 33.3 (2012/02/25 00:30:00.00) 36.7 31.8 (2012/02/25 00:45:00.00) 36.2 33.5 (2012/02/25 01:00:00.00) 34.7 32.0 (2012/02/25 01:15:00.00) 34.0 30.7 (2012/02/25 01:30:00.00) 37.4 32.8 (2012/02/25 01:45:00.00) 34.1 32.1 (2012/02/25 02:00:00.00) 34.0 31.0 (2012/02/25 02:15:00.00) 32.5 30.0 (2012/02/25 02:30:00.00) 32.1 29.8 (2012/02/25 02:45:00.00) 32.5 29.1 (2012/02/25 03:00:00.00) 33.9 28.8 (2012/02/25 03:15:00.00) 32.1 29.7 (2012/02/25 03:30:00.00) 32.3 29.3 (2012/02/25 03:45:00.00) 34.3 31.4 (2012/02/25 04:00:00.00) 34.4 30.9 (2012/02/25 04:15:00.00) 34.7 30.5 (2012/02/25 04:30:00.00) 33.1 30.3 (2012/02/25 04:45:00.00) 32.3 30.1 (2012/02/25 05:00:00.00) 33.8 30.3 (2012/02/25 05:15:00.00) 35.8 32.7 (2012/02/25 05:30:00.00) 37.6 34.0 (2012/02/25 05:45:00.00) 38.6 34.3 (2012/02/25 06:00:00.00) 40.4 35.8 (2012/02/25 06:15:00.00) 55.3 38.2 (2012/02/25 06:30:00.00) 50.0 38.1 (2012/02/25 06:45:00.00) 57.1 52.2 (2012/02/25 07:00:00.00) 52.6 41.6 (2012/02/25 07:15:00.00) 45.7 40.2 (2012/02/25 07:30:00.00) 43.7 40.5 (2012/02/25 07:45:00.00) 51.4 41.6

LAMAX 64.6 64.5 65.1 65.3 71.1 69.1 83.9 70.7 63.2 65.5 76.6 74.3 66.6 62.5 67.3 72.6 76.7 67.2 61.6 70.2 63.2 69.1 72.4 70.8 62.0 61.6 64.2 72.2 55.6 56.8 57.0 50.1 50.3 46.0 44.6 48.5 46.6 49.8 45.8 46.4 57.7 46.0 44.6 46.6 48.3 49.4 41.4 42.3 41.4 45.9 40.1 42.8 42.2 44.2 41.8 43.4 41.4 45.5 45.9 48.0 48.0 54.8 58.3 75.2 64.0 67.5 67.5 74.8 68.1 79.1

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/25 08:00:00.00) 50.3 44.5 (2012/02/25 08:15:00.00) 53.5 45.8 (2012/02/25 08:30:00.00) 53.9 47.9 (2012/02/25 08:45:00.00) 55.9 43.9 (2012/02/25 09:00:00.00) 48.8 43.4 (2012/02/25 09:15:00.00) 49.6 44.1 (2012/02/25 09:30:00.00) 51.1 43.3 (2012/02/25 09:45:00.00) 44.8 42.1 (2012/02/25 10:00:00.00) 49.5 43.2 (2012/02/25 10:15:00.00) 47.0 42.7 (2012/02/25 10:30:00.00) 47.1 43.5 (2012/02/25 10:45:00.00) 46.9 43.1 (2012/02/25 11:00:00.00) 49.3 44.9 (2012/02/25 11:15:00.00) 48.7 43.7 (2012/02/25 11:30:00.00) 50.1 44.7 (2012/02/25 11:45:00.00) 49.5 45.4 (2012/02/25 12:00:00.00) 49.3 44.7 (2012/02/25 12:15:00.00) 49.1 44.4 (2012/02/25 12:30:00.00) 48.7 44.7 (2012/02/25 12:45:00.00) 50.1 43.2 (2012/02/25 13:00:00.00) 48.2 42.6 (2012/02/25 13:15:00.00) 47.7 42.9 (2012/02/25 13:30:00.00) 46.7 43.0 (2012/02/25 13:45:00.00) 47.7 43.5 (2012/02/25 14:00:00.00) 45.9 42.0 (2012/02/25 14:15:00.00) 44.3 41.7 (2012/02/25 14:30:00.00) 43.5 41.0 (2012/02/25 14:45:00.00) 43.9 41.1 (2012/02/25 15:00:00.00) 44.8 41.3 (2012/02/25 15:15:00.00) 45.0 41.5 (2012/02/25 15:30:00.00) 45.6 41.5 (2012/02/25 15:45:00.00) 43.7 41.0 (2012/02/25 16:00:00.00) 42.9 40.3 (2012/02/25 16:15:00.00) 46.3 40.8 (2012/02/25 16:30:00.00) 50.2 42.1 (2012/02/25 16:45:00.00) 49.3 43.1 (2012/02/25 17:00:00.00) 47.3 41.2 (2012/02/25 17:15:00.00) 47.9 40.4 (2012/02/25 17:30:00.00) 43.0 39.6 (2012/02/25 17:45:00.00) 53.4 38.6 (2012/02/25 18:00:00.00) 54.1 40.1 (2012/02/25 18:15:00.00) 50.9 41.6 (2012/02/25 18:30:00.00) 44.2 39.3 (2012/02/25 18:45:00.00) 45.0 39.4 (2012/02/25 19:00:00.00) 48.1 40.0 (2012/02/25 19:15:00.00) 50.2 41.1 (2012/02/25 19:30:00.00) 51.2 40.0 (2012/02/25 19:45:00.00) 44.9 39.4 (2012/02/25 20:00:00.00) 53.0 41.3 (2012/02/25 20:15:00.00) 40.1 37.4 (2012/02/25 20:30:00.00) 40.1 37.8 (2012/02/25 20:45:00.00) 50.4 38.2 (2012/02/25 21:00:00.00) 45.0 37.1 (2012/02/25 21:15:00.00) 38.2 35.8 (2012/02/25 21:30:00.00) 39.6 37.2 (2012/02/25 21:45:00.00) 41.3 37.3 (2012/02/25 22:00:00.00) 38.9 36.3 (2012/02/25 22:15:00.00) 38.0 35.8 (2012/02/25 22:30:00.00) 38.8 36.5 (2012/02/25 22:45:00.00) 39.3 36.5 (2012/02/25 23:00:00.00) 39.0 35.9 (2012/02/25 23:15:00.00) 39.1 36.4 (2012/02/25 23:30:00.00) 38.4 35.1 (2012/02/25 23:45:00.00) 38.6 34.9 (2012/02/26 00:00:00.00) 38.1 35.2 (2012/02/26 00:15:00.00) 36.2 33.5 (2012/02/26 00:30:00.00) 36.6 32.9 (2012/02/26 00:45:00.00) 37.1 33.8 (2012/02/26 01:00:00.00) 37.6 35.1 (2012/02/26 01:15:00.00) 37.7 34.4

LAMAX 69.1 76.9 71.8 70.4 71.9 67.1 74.3 58.9 67.7 65.6 62.9 63.0 67.0 72.4 64.9 62.0 67.0 63.7 67.3 66.0 64.7 64.9 69.5 59.4 67.0 62.8 60.4 68.1 62.3 63.4 62.4 64.8 56.4 70.7 70.0 66.9 62.7 68.7 63.1 76.8 73.4 69.9 58.5 56.5 66.2 69.0 68.4 67.8 72.1 55.8 52.4 68.4 68.2 45.5 48.1 57.2 49.8 49.5 46.2 46.7 46.1 47.7 47.4 51.7 49.1 45.0 53.8 47.9 47.4 49.5

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/26 01:30:00.00) 37.5 33.4 (2012/02/26 01:45:00.00) 36.0 33.4 (2012/02/26 02:00:00.00) 34.7 33.1 (2012/02/26 02:15:00.00) 34.4 31.9 (2012/02/26 02:30:00.00) 36.8 33.2 (2012/02/26 02:45:00.00) 35.6 32.6 (2012/02/26 03:00:00.00) 35.4 31.3 (2012/02/26 03:15:00.00) 33.0 30.2 (2012/02/26 03:30:00.00) 34.7 30.6 (2012/02/26 03:45:00.00) 31.4 29.1 (2012/02/26 04:00:00.00) 36.2 31.4 (2012/02/26 04:15:00.00) 33.3 29.7 (2012/02/26 04:30:00.00) 33.9 29.8 (2012/02/26 04:45:00.00) 33.6 29.6 (2012/02/26 05:00:00.00) 33.6 30.2 (2012/02/26 05:15:00.00) 37.2 31.4 (2012/02/26 05:30:00.00) 35.1 32.2 (2012/02/26 05:45:00.00) 37.1 32.9 (2012/02/26 06:00:00.00) 38.9 36.1 (2012/02/26 06:15:00.00) 53.2 36.2 (2012/02/26 06:30:00.00) 45.3 39.4 (2012/02/26 06:45:00.00) 51.2 44.6 (2012/02/26 07:00:00.00) 49.5 42.9 (2012/02/26 07:15:00.00) 43.0 39.2 (2012/02/26 07:30:00.00) 44.0 38.0 (2012/02/26 07:45:00.00) 48.2 39.0 (2012/02/26 08:00:00.00) 55.4 41.4 (2012/02/26 08:15:00.00) 46.9 38.7 (2012/02/26 08:30:00.00) 53.2 40.0 (2012/02/26 08:45:00.00) 51.0 39.6 (2012/02/26 09:00:00.00) 53.9 40.0 (2012/02/26 09:15:00.00) 49.3 40.2 (2012/02/26 09:30:00.00) 50.8 37.7 (2012/02/26 09:45:00.00) 53.6 36.9 (2012/02/26 10:00:00.00) 47.7 37.9 (2012/02/26 10:15:00.00) 44.5 36.8 (2012/02/26 10:30:00.00) 39.2 36.1 (2012/02/26 10:45:00.00) 39.6 37.1 (2012/02/26 11:00:00.00) 47.9 37.7 (2012/02/26 11:15:00.00) 43.1 36.3 (2012/02/26 11:30:00.00) 39.6 36.1 (2012/02/26 11:45:00.00) 39.2 36.0 (2012/02/26 12:00:00.00) 38.2 35.8 (2012/02/26 12:15:00.00) 48.3 39.7 (2012/02/26 12:30:00.00) 39.9 36.4 (2012/02/26 12:45:00.00) 48.6 37.1 (2012/02/26 13:00:00.00) 47.3 37.6 (2012/02/26 13:15:00.00) 43.0 37.1 (2012/02/26 13:30:00.00) 44.5 37.4 (2012/02/26 13:45:00.00) 39.9 36.5 (2012/02/26 14:00:00.00) 42.2 37.8 (2012/02/26 14:15:00.00) 41.4 37.3 (2012/02/26 14:30:00.00) 48.0 38.4 (2012/02/26 14:45:00.00) 43.2 36.9 (2012/02/26 15:00:00.00) 42.8 38.3 (2012/02/26 15:15:00.00) 41.9 37.2 (2012/02/26 15:30:00.00) 45.0 39.3 (2012/02/26 15:45:00.00) 46.8 39.8 (2012/02/26 16:00:00.00) 45.6 41.2 (2012/02/26 16:15:00.00) 49.0 40.3 (2012/02/26 16:30:00.00) 52.6 41.6 (2012/02/26 16:45:00.00) 44.9 41.0 (2012/02/26 17:00:00.00) 44.1 40.4 (2012/02/26 17:15:00.00) 49.0 41.0 (2012/02/26 17:30:00.00) 43.3 39.1 (2012/02/26 17:45:00.00) 52.0 39.1 (2012/02/26 18:00:00.00) 49.4 37.1 (2012/02/26 18:15:00.00) 49.4 36.3 (2012/02/26 18:30:00.00) 51.6 40.8 (2012/02/26 18:45:00.00) 50.7 42.4

LAMAX 48.2 48.3 49.2 49.2 47.8 40.3 47.0 47.1 48.9 43.0 53.7 49.8 46.9 40.3 47.5 47.2 44.2 46.2 52.8 76.6 61.5 67.5 63.2 71.3 76.5 69.9 73.3 73.1 73.2 71.1 74.0 65.2 67.8 76.8 70.1 69.1 59.0 57.6 66.6 63.9 54.2 58.9 52.1 64.3 64.6 71.8 66.5 65.0 66.5 60.6 61.4 57.2 69.6 65.3 59.8 55.2 64.1 68.9 66.7 73.3 72.6 62.5 60.5 75.0 64.5 70.6 66.5 71.1 71.9 65.4

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/26 19:00:00.00) 47.6 42.5 (2012/02/26 19:15:00.00) 47.3 42.9 (2012/02/26 19:30:00.00) 55.7 45.6 (2012/02/26 19:45:00.00) 47.0 39.8 (2012/02/26 20:00:00.00) 41.6 38.8 (2012/02/26 20:15:00.00) 44.0 38.3 (2012/02/26 20:30:00.00) 44.2 37.9 (2012/02/26 20:45:00.00) 55.1 39.6 (2012/02/26 21:00:00.00) 45.6 37.1 (2012/02/26 21:15:00.00) 39.4 37.2 (2012/02/26 21:30:00.00) 41.3 37.0 (2012/02/26 21:45:00.00) 46.7 37.0 (2012/02/26 22:00:00.00) 37.9 36.4 (2012/02/26 22:15:00.00) 38.4 36.4 (2012/02/26 22:30:00.00) 37.3 35.6 (2012/02/26 22:45:00.00) 37.5 35.0 (2012/02/26 23:00:00.00) 35.9 34.4 (2012/02/26 23:15:00.00) 36.1 34.5 (2012/02/26 23:30:00.00) 37.2 35.3 (2012/02/26 23:45:00.00) 35.6 33.7 (2012/02/27 00:00:00.00) 34.1 32.1 (2012/02/27 00:15:00.00) 33.3 31.3 (2012/02/27 00:30:00.00) 34.1 32.5 (2012/02/27 00:45:00.00) 35.9 33.5 (2012/02/27 01:00:00.00) 33.4 31.8 (2012/02/27 01:15:00.00) 32.4 29.8 (2012/02/27 01:30:00.00) 31.7 29.1 (2012/02/27 01:45:00.00) 32.3 29.9 (2012/02/27 02:00:00.00) 33.8 30.6 (2012/02/27 02:15:00.00) 34.5 30.8 (2012/02/27 02:30:00.00) 34.4 32.0 (2012/02/27 02:45:00.00) 32.6 30.1 (2012/02/27 03:00:00.00) 36.1 33.6 (2012/02/27 03:15:00.00) 36.2 32.5 (2012/02/27 03:30:00.00) 33.1 31.2 (2012/02/27 03:45:00.00) 34.5 31.0 (2012/02/27 04:00:00.00) 34.4 31.7 (2012/02/27 04:15:00.00) 34.0 30.5 (2012/02/27 04:30:00.00) 35.1 31.0 (2012/02/27 04:45:00.00) 34.5 32.8 (2012/02/27 05:00:00.00) 36.8 33.8 (2012/02/27 05:15:00.00) 36.5 34.0 (2012/02/27 05:30:00.00) 38.0 34.8 (2012/02/27 05:45:00.00) 38.2 36.0 (2012/02/27 06:00:00.00) 38.8 36.0 (2012/02/27 06:15:00.00) 47.5 39.4 (2012/02/27 06:30:00.00) 49.8 39.9 (2012/02/27 06:45:00.00) 53.2 48.1 (2012/02/27 07:00:00.00) 52.8 47.8 (2012/02/27 07:15:00.00) 46.4 41.7 (2012/02/27 07:30:00.00) 44.3 41.8 (2012/02/27 07:45:00.00) 49.7 42.8 (2012/02/27 08:00:00.00) 51.7 45.3 (2012/02/27 08:15:00.00) 53.9 45.2 (2012/02/27 08:30:00.00) 56.3 45.1 (2012/02/27 08:45:00.00) 53.9 45.4 (2012/02/27 09:00:00.00) 51.0 42.3 (2012/02/27 09:15:00.00) 48.6 41.9 (2012/02/27 09:30:00.00) 50.9 43.5 (2012/02/27 09:45:00.00) 53.0 41.6 (2012/02/27 10:00:00.00) 48.3 40.6 (2012/02/27 10:15:00.00) 45.0 40.2 (2012/02/27 10:30:00.00) 45.6 40.7 (2012/02/27 10:45:00.00) 45.7 40.7 (2012/02/27 11:00:00.00) 52.6 40.3 (2012/02/27 11:15:00.00) 49.3 40.9 (2012/02/27 11:30:00.00) 49.1 40.2 (2012/02/27 11:45:00.00) 47.8 42.4 (2012/02/27 12:00:00.00) 42.4 40.1 (2012/02/27 12:15:00.00) 47.8 39.7

LAMAX 64.1 66.3 73.1 62.4 48.3 63.0 61.5 71.5 64.1 54.0 55.0 67.3 49.2 60.9 51.7 65.3 44.4 43.0 46.6 41.0 40.9 47.4 43.2 47.0 38.2 43.9 47.1 43.8 45.8 47.6 42.5 44.8 45.4 47.5 41.4 45.5 46.9 45.5 49.0 49.6 45.5 49.9 52.6 48.5 52.4 64.8 61.5 69.7 65.5 67.1 56.0 69.8 69.6 71.7 77.1 73.2 70.4 71.2 71.8 77.5 69.1 66.6 63.2 57.1 74.7 70.7 76.5 69.7 59.4 68.7

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/27 12:30:00.00) 43.8 39.3 (2012/02/27 12:45:00.00) 41.7 39.4 (2012/02/27 13:00:00.00) 43.2 40.0 (2012/02/27 13:15:00.00) 46.1 40.9 (2012/02/27 13:30:00.00) 57.7 41.7 (2012/02/27 13:45:00.00) 48.8 40.6 (2012/02/27 14:00:00.00) 55.5 41.0 (2012/02/27 14:15:00.00) 42.9 40.7 (2012/02/27 14:30:00.00) 42.6 40.0 (2012/02/27 14:45:00.00) 43.1 39.9 (2012/02/27 15:00:00.00) 45.7 42.2 (2012/02/27 15:15:00.00) 49.3 39.7 (2012/02/27 15:30:00.00) 42.5 39.8 (2012/02/27 15:45:00.00) 43.1 39.9 (2012/02/27 16:00:00.00) 44.9 40.1 (2012/02/27 16:15:00.00) 55.4 40.8 (2012/02/27 16:30:00.00) 49.0 44.3 (2012/02/27 16:45:00.00) 47.9 41.0 (2012/02/27 17:00:00.00) 47.9 42.1 (2012/02/27 17:15:00.00) 48.3 42.2 (2012/02/27 17:30:00.00) 47.6 41.7 (2012/02/27 17:45:00.00) 49.9 40.9 (2012/02/27 18:00:00.00) 45.8 40.5 (2012/02/27 18:15:00.00) 55.3 43.9 (2012/02/27 18:30:00.00) 52.2 42.8 (2012/02/27 18:45:00.00) 51.9 41.4 (2012/02/27 19:00:00.00) 57.0 40.8 (2012/02/27 19:15:00.00) 47.2 42.3 (2012/02/27 19:30:00.00) 56.8 44.5 (2012/02/27 19:45:00.00) 50.4 43.0 (2012/02/27 20:00:00.00) 47.2 39.3 (2012/02/27 20:15:00.00) 46.8 38.0 (2012/02/27 20:30:00.00) 45.5 37.8 (2012/02/27 20:45:00.00) 51.8 39.2 (2012/02/27 21:00:00.00) 42.2 37.6 (2012/02/27 21:15:00.00) 39.6 37.4 (2012/02/27 21:30:00.00) 39.1 37.1 (2012/02/27 21:45:00.00) 38.6 36.4 (2012/02/27 22:00:00.00) 37.0 34.6 (2012/02/27 22:15:00.00) 37.3 35.6 (2012/02/27 22:30:00.00) 37.3 34.8 (2012/02/27 22:45:00.00) 37.7 35.6 (2012/02/27 23:00:00.00) 36.7 34.5 (2012/02/27 23:15:00.00) 36.7 34.5 (2012/02/27 23:30:00.00) 36.3 33.8 (2012/02/27 23:45:00.00) 35.3 33.4 (2012/02/28 00:00:00.00) 35.0 32.2 (2012/02/28 00:15:00.00) 33.3 30.0 (2012/02/28 00:30:00.00) 30.3 28.8 (2012/02/28 00:45:00.00) 32.4 29.1 (2012/02/28 01:00:00.00) 32.2 30.3 (2012/02/28 01:15:00.00) 31.5 29.2 (2012/02/28 01:30:00.00) 34.0 29.1 (2012/02/28 01:45:00.00) 31.3 29.0 (2012/02/28 02:00:00.00) 30.2 28.4 (2012/02/28 02:15:00.00) 30.2 28.1 (2012/02/28 02:30:00.00) 29.6 28.4 (2012/02/28 02:45:00.00) 31.1 29.1 (2012/02/28 03:00:00.00) 33.5 30.1 (2012/02/28 03:15:00.00) 31.7 29.5 (2012/02/28 03:30:00.00) 31.6 29.9 (2012/02/28 03:45:00.00) 32.6 29.9 (2012/02/28 04:00:00.00) 33.1 31.2 (2012/02/28 04:15:00.00) 32.6 30.1 (2012/02/28 04:30:00.00) 33.5 29.8 (2012/02/28 04:45:00.00) 33.6 31.5 (2012/02/28 05:00:00.00) 35.8 33.0 (2012/02/28 05:15:00.00) 34.7 32.7 (2012/02/28 05:30:00.00) 36.5 33.8 (2012/02/28 05:45:00.00) 36.8 34.4

LAMAX 65.0 58.6 57.5 66.5 77.1 68.7 77.0 64.6 59.6 64.8 64.6 70.0 59.7 66.3 61.6 76.2 67.0 67.0 64.6 66.2 64.2 69.9 67.3 70.6 69.5 72.2 85.7 65.1 79.8 63.7 69.5 71.0 60.6 70.8 65.6 47.2 48.1 51.5 46.7 46.6 43.8 46.7 47.7 44.7 47.0 51.2 42.7 39.1 38.7 46.5 38.3 42.1 40.9 42.5 40.4 41.0 37.4 40.4 43.4 45.4 43.8 42.3 39.6 39.2 41.0 42.0 49.1 46.3 47.1 45.6

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/28 06:00:00.00) 38.7 35.2 (2012/02/28 06:15:00.00) 44.3 38.5 (2012/02/28 06:30:00.00) 52.9 39.4 (2012/02/28 06:45:00.00) 47.7 39.8 (2012/02/28 07:00:00.00) 43.4 40.7 (2012/02/28 07:15:00.00) 42.9 41.2 (2012/02/28 07:30:00.00) 44.2 41.7 (2012/02/28 07:45:00.00) 48.8 42.3 (2012/02/28 08:00:00.00) 49.6 43.5 (2012/02/28 08:15:00.00) 51.4 44.2 (2012/02/28 08:30:00.00) 53.2 46.3 (2012/02/28 08:45:00.00) 53.7 48.5 (2012/02/28 09:00:00.00) 48.6 44.0 (2012/02/28 09:15:00.00) 45.1 42.3 (2012/02/28 09:30:00.00) 47.1 41.6 (2012/02/28 09:45:00.00) 46.6 40.6 (2012/02/28 10:00:00.00) 48.3 41.3 (2012/02/28 10:15:00.00) 47.6 41.5 (2012/02/28 10:30:00.00) 49.9 42.1 (2012/02/28 10:45:00.00) 42.8 40.5 (2012/02/28 11:00:00.00) 45.7 42.1 (2012/02/28 11:15:00.00) 44.1 40.8 (2012/02/28 11:30:00.00) 43.6 40.3 (2012/02/28 11:45:00.00) 51.9 40.4 (2012/02/28 12:00:00.00) 43.0 40.5 (2012/02/28 12:15:00.00) 42.8 40.5 (2012/02/28 12:30:00.00) 50.3 41.4 (2012/02/28 12:45:00.00) 59.5 41.3 (2012/02/28 13:00:00.00) 48.5 39.3 (2012/02/28 13:15:00.00) 42.8 40.1 (2012/02/28 13:30:00.00) 45.0 41.1 (2012/02/28 13:45:00.00) 52.3 42.8 (2012/02/28 14:00:00.00) 52.8 42.4 (2012/02/28 14:15:00.00) 50.7 41.7 (2012/02/28 14:30:00.00) 55.0 43.4 (2012/02/28 14:45:00.00) 53.3 41.5 (2012/02/28 15:00:00.00) 54.4 41.2 (2012/02/28 15:15:00.00) 52.6 43.0 (2012/02/28 15:30:00.00) 45.0 40.8 (2012/02/28 15:45:00.00) 50.4 40.9 (2012/02/28 16:00:00.00) 48.1 39.7 (2012/02/28 16:15:00.00) 51.8 41.0 (2012/02/28 16:30:00.00) 46.7 40.6 (2012/02/28 16:45:00.00) 43.2 39.8 (2012/02/28 17:00:00.00) 46.0 40.6 (2012/02/28 17:15:00.00) 50.4 41.8 (2012/02/28 17:30:00.00) 43.7 39.6 (2012/02/28 17:45:00.00) 50.6 40.6 (2012/02/28 18:00:00.00) 42.4 38.8 (2012/02/28 18:15:00.00) 41.3 38.1 (2012/02/28 18:30:00.00) 49.9 37.5 (2012/02/28 18:45:00.00) 46.9 37.6 (2012/02/28 19:00:00.00) 44.8 37.4 (2012/02/28 19:15:00.00) 48.7 37.6 (2012/02/28 19:30:00.00) 44.9 38.8 (2012/02/28 19:45:00.00) 50.1 39.5 (2012/02/28 20:00:00.00) 41.4 37.9 (2012/02/28 20:15:00.00) 39.5 36.0 (2012/02/28 20:30:00.00) 42.4 35.9 (2012/02/28 20:45:00.00) 37.8 35.4 (2012/02/28 21:00:00.00) 44.3 35.5 (2012/02/28 21:15:00.00) 37.8 35.6 (2012/02/28 21:30:00.00) 37.7 35.0 (2012/02/28 21:45:00.00) 36.3 34.3 (2012/02/28 22:00:00.00) 37.0 33.8 (2012/02/28 22:15:00.00) 35.7 33.4 (2012/02/28 22:30:00.00) 36.3 33.6 (2012/02/28 22:45:00.00) 34.5 32.4 (2012/02/28 23:00:00.00) 34.7 31.9 (2012/02/28 23:15:00.00) 35.0 32.3

LAMAX 58.5 61.7 75.8 65.7 61.3 52.8 60.8 71.0 65.3 63.0 73.0 70.6 70.8 68.7 65.2 67.6 70.9 67.7 70.1 60.9 64.4 72.2 58.0 74.6 63.5 70.4 71.9 81.2 72.3 61.7 66.6 73.1 74.5 66.3 73.6 78.2 75.1 70.7 66.1 70.6 71.3 73.3 71.6 61.7 62.9 71.0 69.1 70.0 60.3 57.2 75.4 76.1 63.7 66.8 62.6 69.0 60.3 58.9 64.7 48.5 64.9 48.9 45.9 44.3 57.2 46.5 47.2 41.5 41.2 49.7

POSITION 3 ‐ REDMAYNE VIEW CAREHOME Date/Time LAeq LA90 (2012/02/28 23:30:00.00) 33.4 31.3 (2012/02/28 23:45:00.00) 33.2 28.4 (2012/02/29 00:00:00.00) 33.5 31.0 (2012/02/29 00:15:00.00) 31.9 29.5 (2012/02/29 00:30:00.00) 30.8 28.2 (2012/02/29 00:45:00.00) 32.5 31.0 (2012/02/29 01:00:00.00) 32.6 28.6 (2012/02/29 01:15:00.00) 34.1 31.6 (2012/02/29 01:30:00.00) 31.7 29.9 (2012/02/29 01:45:00.00) 30.1 27.4 (2012/02/29 02:00:00.00) 27.6 26.3 (2012/02/29 02:15:00.00) 28.8 26.5 (2012/02/29 02:30:00.00) 28.9 26.3 (2012/02/29 02:45:00.00) 31.1 26.9 (2012/02/29 03:00:00.00) 29.9 27.2 (2012/02/29 03:15:00.00) 30.1 26.6 (2012/02/29 03:30:00.00) 30.8 29.1 (2012/02/29 03:45:00.00) 31.0 28.0 (2012/02/29 04:00:00.00) 28.8 27.5 (2012/02/29 04:15:00.00) 32.8 28.4 (2012/02/29 04:30:00.00) 32.1 28.2 (2012/02/29 04:45:00.00) 31.9 30.1 (2012/02/29 05:00:00.00) 31.8 29.8 (2012/02/29 05:15:00.00) 32.7 30.4 (2012/02/29 05:30:00.00) 33.8 31.6 (2012/02/29 05:45:00.00) 35.7 32.7 (2012/02/29 06:00:00.00) 40.8 36.1 (2012/02/29 06:15:00.00) 51.6 37.6 (2012/02/29 06:30:00.00) 44.4 37.8 (2012/02/29 06:45:00.00) 46.9 39.4 (2012/02/29 07:00:00.00) 47.5 39.9 (2012/02/29 07:15:00.00) 44.0 39.1 (2012/02/29 07:30:00.00) 46.0 40.5 (2012/02/29 07:45:00.00) 44.1 40.7 (2012/02/29 08:00:00.00) 47.9 41.0 (2012/02/29 08:15:00.00) 46.2 41.8 (2012/02/29 08:30:00.00) 44.1 41.1 (2012/02/29 08:45:00.00) 47.8 43.0 (2012/02/29 09:00:00.00) 46.5 39.9 (2012/02/29 09:15:00.00) 43.2 39.6 (2012/02/29 09:30:00.00) 42.0 39.1 (2012/02/29 09:45:00.00) 44.7 39.4 (2012/02/29 10:00:00.00) 43.1 39.7 (2012/02/29 10:15:00.00) 42.5 39.3 (2012/02/29 10:30:00.00) 43.4 39.7 (2012/02/29 10:45:00.00) 42.1 39.1 (2012/02/29 11:00:00.00) 50.5 40.1 (2012/02/29 11:15:00.00) 44.1 38.9 (2012/02/29 11:30:00.00) 50.5 41.3

LAMAX 42.6 47.4 45.0 40.4 38.8 39.2 46.6 44.6 43.4 44.8 33.5 40.0 38.1 38.2 43.1 38.5 40.2 43.0 37.7 40.8 44.5 42.2 45.3 42.9 41.6 50.9 59.6 71.7 59.8 64.4 70.7 69.7 67.5 72.7 64.1 66.0 68.7 65.3 65.4 58.1 56.5 61.7 58.9 58.8 60.3 61.2 67.3 63.1 80.7

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/24 11:30:00.00) 65.3 46.4 94.9 (2012/02/24 11:45:00.00) 76.8 49.9 102.3 (2012/02/24 12:00:00.00) 61.5 50.1 81.8 (2012/02/24 12:15:00.00) 51.7 47.4 72.3 (2012/02/24 12:30:00.00) 51.8 48.0 68.5 (2012/02/24 12:45:00.00) 54.0 49.9 70.9 (2012/02/24 13:00:00.00) 51.7 48.1 65.6 (2012/02/24 13:15:00.00) 52.6 47.7 71.8 (2012/02/24 13:30:00.00) 51.4 46.9 69.9 (2012/02/24 13:45:00.00) 50.1 47.0 65.4 (2012/02/24 14:00:00.00) 49.4 46.8 60.9 (2012/02/24 14:15:00.00) 50.2 46.5 69.3 (2012/02/24 14:30:00.00) 52.1 48.0 67.8 (2012/02/24 14:45:00.00) 51.6 47.9 68.8 (2012/02/24 15:00:00.00) 51.8 47.8 74.0 (2012/02/24 15:15:00.00) 51.6 47.5 64.5 (2012/02/24 15:30:00.00) 52.7 47.9 70.0 (2012/02/24 15:45:00.00) 51.8 48.8 67.2 (2012/02/24 16:00:00.00) 55.7 47.8 73.7 (2012/02/24 16:15:00.00) 52.3 48.9 65.8 (2012/02/24 16:30:00.00) 51.0 47.9 64.4 (2012/02/24 16:45:00.00) 51.2 47.6 65.5 (2012/02/24 17:00:00.00) 53.9 48.1 74.9 (2012/02/24 17:15:00.00) 52.0 48.5 65.9 (2012/02/24 17:30:00.00) 52.8 48.5 69.2 (2012/02/24 17:45:00.00) 50.9 48.0 72.2 (2012/02/24 18:00:00.00) 50.2 47.5 64.9 (2012/02/24 18:15:00.00) 50.7 47.0 68.0 (2012/02/24 18:30:00.00) 52.3 47.5 69.5 (2012/02/24 18:45:00.00) 49.2 46.4 61.1 (2012/02/24 19:00:00.00) 51.0 46.5 70.0 (2012/02/24 19:15:00.00) 50.2 47.0 67.3 (2012/02/24 19:30:00.00) 48.7 45.7 58.1 (2012/02/24 19:45:00.00) 48.5 45.4 60.8 (2012/02/24 20:00:00.00) 49.1 45.4 65.7 (2012/02/24 20:15:00.00) 49.4 43.6 68.6 (2012/02/24 20:30:00.00) 47.2 44.3 60.0 (2012/02/24 20:45:00.00) 46.6 43.4 64.8 (2012/02/24 21:00:00.00) 47.0 43.3 62.0 (2012/02/24 21:15:00.00) 46.1 42.1 60.2 (2012/02/24 21:30:00.00) 47.1 42.6 61.5 (2012/02/24 21:45:00.00) 47.2 43.1 63.7 (2012/02/24 22:00:00.00) 47.3 40.0 61.6 (2012/02/24 22:15:00.00) 43.9 40.1 50.5 (2012/02/24 22:30:00.00) 44.5 40.7 53.9 (2012/02/24 22:45:00.00) 43.6 39.8 51.3 (2012/02/24 23:00:00.00) 43.7 41.0 54.7 (2012/02/24 23:15:00.00) 43.5 39.9 54.8 (2012/02/24 23:30:00.00) 44.1 39.4 60.9

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/24 23:45:00.00) 42.6 39.1 50.4 (2012/02/25 00:00:00.00) 41.5 38.0 53.8 (2012/02/25 00:15:00.00) 41.3 36.9 51.9 (2012/02/25 00:30:00.00) 41.1 36.7 52.6 (2012/02/25 00:45:00.00) 39.5 34.6 51.1 (2012/02/25 01:00:00.00) 39.7 34.8 50.4 (2012/02/25 01:15:00.00) 38.5 33.6 52.3 (2012/02/25 01:30:00.00) 37.7 30.5 48.9 (2012/02/25 01:45:00.00) 39.3 33.2 52.3 (2012/02/25 02:00:00.00) 37.7 31.7 49.4 (2012/02/25 02:15:00.00) 35.7 30.5 52.3 (2012/02/25 02:30:00.00) 35.4 29.3 45.1 (2012/02/25 02:45:00.00) 36.7 30.0 50.6 (2012/02/25 03:00:00.00) 43.6 29.2 63.1 (2012/02/25 03:15:00.00) 35.3 30.5 46.9 (2012/02/25 03:30:00.00) 34.7 30.1 50.1 (2012/02/25 03:45:00.00) 36.6 29.9 56.6 (2012/02/25 04:00:00.00) 36.0 30.0 52.6 (2012/02/25 04:15:00.00) 33.0 27.7 44.4 (2012/02/25 04:30:00.00) 35.7 29.9 53.2 (2012/02/25 04:45:00.00) 39.8 33.0 53.8 (2012/02/25 05:00:00.00) 40.4 32.6 54.8 (2012/02/25 05:15:00.00) 42.1 32.5 62.4 (2012/02/25 05:30:00.00) 43.5 35.6 56.7 (2012/02/25 05:45:00.00) 44.5 37.9 61.0 (2012/02/25 06:00:00.00) 46.1 39.8 65.3 (2012/02/25 06:15:00.00) 52.4 40.5 73.5 (2012/02/25 06:30:00.00) 46.3 42.2 60.4 (2012/02/25 06:45:00.00) 50.1 46.8 58.9 (2012/02/25 07:00:00.00) 48.6 45.2 61.9 (2012/02/25 07:15:00.00) 50.4 45.3 68.5 (2012/02/25 07:30:00.00) 49.2 45.2 65.8 (2012/02/25 07:45:00.00) 52.3 46.8 69.2 (2012/02/25 08:00:00.00) 49.7 46.6 64.2 (2012/02/25 08:15:00.00) 52.7 46.8 76.8 (2012/02/25 08:30:00.00) 53.2 49.3 63.0 (2012/02/25 08:45:00.00) 58.6 48.4 73.7 (2012/02/25 09:00:00.00) 51.5 47.4 63.4 (2012/02/25 09:15:00.00) 53.2 48.1 65.6 (2012/02/25 09:30:00.00) 52.1 47.0 66.5 (2012/02/25 09:45:00.00) 50.3 46.8 62.8 (2012/02/25 10:00:00.00) 51.1 47.1 61.6 (2012/02/25 10:15:00.00) 51.1 47.4 64.6 (2012/02/25 10:30:00.00) 50.5 46.6 65.1 (2012/02/25 10:45:00.00) 50.9 46.7 66.9 (2012/02/25 11:00:00.00) 51.3 46.9 69.4 (2012/02/25 11:15:00.00) 51.2 47.7 69.6 (2012/02/25 11:30:00.00) 52.0 47.4 71.7 (2012/02/25 11:45:00.00) 51.1 47.5 66.4

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/25 12:00:00.00) 50.4 47.5 65.1 (2012/02/25 12:15:00.00) 50.5 47.3 66.4 (2012/02/25 12:30:00.00) 51.2 47.3 61.4 (2012/02/25 12:45:00.00) 51.9 47.3 68.1 (2012/02/25 13:00:00.00) 50.5 47.1 69.1 (2012/02/25 13:15:00.00) 49.4 46.8 64.3 (2012/02/25 13:30:00.00) 50.1 46.4 65.9 (2012/02/25 13:45:00.00) 51.7 46.8 66.6 (2012/02/25 14:00:00.00) 51.4 47.4 66.6 (2012/02/25 14:15:00.00) 51.7 47.2 66.1 (2012/02/25 14:30:00.00) 51.3 47.0 68.3 (2012/02/25 14:45:00.00) 51.2 46.6 64.5 (2012/02/25 15:00:00.00) 51.5 46.8 66.1 (2012/02/25 15:15:00.00) 50.8 46.1 68.1 (2012/02/25 15:30:00.00) 51.8 47.2 67.6 (2012/02/25 15:45:00.00) 50.6 45.8 67.1 (2012/02/25 16:00:00.00) 48.4 45.1 57.9 (2012/02/25 16:15:00.00) 50.0 45.6 66.5 (2012/02/25 16:30:00.00) 52.3 45.7 73.7 (2012/02/25 16:45:00.00) 49.5 46.0 64.0 (2012/02/25 17:00:00.00) 48.5 45.1 65.5 (2012/02/25 17:15:00.00) 51.9 44.2 76.9 (2012/02/25 17:30:00.00) 47.7 44.3 68.4 (2012/02/25 17:45:00.00) 50.4 44.4 73.5 (2012/02/25 18:00:00.00) 51.9 45.6 69.6 (2012/02/25 18:15:00.00) 48.8 45.5 66.1 (2012/02/25 18:30:00.00) 47.5 44.8 60.9 (2012/02/25 18:45:00.00) 49.5 44.6 65.5 (2012/02/25 19:00:00.00) 48.0 44.9 62.7 (2012/02/25 19:15:00.00) 49.4 45.3 64.0 (2012/02/25 19:30:00.00) 49.2 44.7 63.1 (2012/02/25 19:45:00.00) 45.6 43.5 54.4 (2012/02/25 20:00:00.00) 49.1 43.3 67.9 (2012/02/25 20:15:00.00) 45.7 42.8 55.2 (2012/02/25 20:30:00.00) 45.2 43.0 53.9 (2012/02/25 20:45:00.00) 47.9 40.5 65.2 (2012/02/25 21:00:00.00) 46.0 41.2 63.4 (2012/02/25 21:15:00.00) 43.4 40.4 54.3 (2012/02/25 21:30:00.00) 44.0 41.4 52.1 (2012/02/25 21:45:00.00) 44.6 41.6 54.3 (2012/02/25 22:00:00.00) 45.2 42.3 60.0 (2012/02/25 22:15:00.00) 44.4 41.4 61.1 (2012/02/25 22:30:00.00) 44.4 41.4 56.6 (2012/02/25 22:45:00.00) 45.5 42.5 58.1 (2012/02/25 23:00:00.00) 44.2 40.2 53.1 (2012/02/25 23:15:00.00) 44.6 40.7 58.3 (2012/02/25 23:30:00.00) 44.5 40.5 59.1 (2012/02/25 23:45:00.00) 44.0 39.9 55.0 (2012/02/26 00:00:00.00) 44.7 41.0 55.3

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/26 00:15:00.00) 44.0 39.6 53.9 (2012/02/26 00:30:00.00) 43.0 38.6 54.6 (2012/02/26 00:45:00.00) 42.0 38.0 56.6 (2012/02/26 01:00:00.00) 41.5 37.9 51.7 (2012/02/26 01:15:00.00) 40.3 36.3 52.3 (2012/02/26 01:30:00.00) 40.3 35.8 53.6 (2012/02/26 01:45:00.00) 38.2 33.2 53.2 (2012/02/26 02:00:00.00) 38.2 32.7 50.0 (2012/02/26 02:15:00.00) 37.2 31.8 55.9 (2012/02/26 02:30:00.00) 38.1 31.0 52.6 (2012/02/26 02:45:00.00) 36.8 29.3 50.0 (2012/02/26 03:00:00.00) 37.8 30.8 58.0 (2012/02/26 03:15:00.00) 37.3 28.5 50.7 (2012/02/26 03:30:00.00) 35.2 29.9 51.4 (2012/02/26 03:45:00.00) 37.0 27.6 49.8 (2012/02/26 04:00:00.00) 38.7 32.6 51.0 (2012/02/26 04:15:00.00) 38.4 28.9 56.5 (2012/02/26 04:30:00.00) 37.5 28.3 53.4 (2012/02/26 04:45:00.00) 38.4 27.5 50.6 (2012/02/26 05:00:00.00) 40.6 31.5 55.1 (2012/02/26 05:15:00.00) 39.9 31.6 56.6 (2012/02/26 05:30:00.00) 42.0 30.3 55.5 (2012/02/26 05:45:00.00) 46.5 37.2 62.0 (2012/02/26 06:00:00.00) 45.3 38.4 60.9 (2012/02/26 06:15:00.00) 45.2 37.6 61.5 (2012/02/26 06:30:00.00) 46.9 42.5 59.4 (2012/02/26 06:45:00.00) 50.3 45.5 68.1 (2012/02/26 07:00:00.00) 48.0 42.4 69.3 (2012/02/26 07:15:00.00) 47.8 41.9 64.9 (2012/02/26 07:30:00.00) 49.1 41.9 69.8 (2012/02/26 07:45:00.00) 49.7 42.4 70.5 (2012/02/26 08:00:00.00) 52.0 42.5 67.8 (2012/02/26 08:15:00.00) 48.2 41.1 65.4 (2012/02/26 08:30:00.00) 50.7 42.5 71.3 (2012/02/26 08:45:00.00) 50.4 41.9 70.9 (2012/02/26 09:00:00.00) 51.1 42.0 66.8 (2012/02/26 09:15:00.00) 51.3 41.8 63.8 (2012/02/26 09:30:00.00) 50.0 42.5 64.2 (2012/02/26 09:45:00.00) 52.4 42.6 74.0 (2012/02/26 10:00:00.00) 48.6 43.1 60.7 (2012/02/26 10:15:00.00) 50.2 43.4 66.2 (2012/02/26 10:30:00.00) 63.4 43.8 73.0 (2012/02/26 10:45:00.00) 67.7 64.1 75.4 (2012/02/26 11:00:00.00) 61.4 42.8 72.1 (2012/02/26 11:15:00.00) 47.0 41.6 65.8 (2012/02/26 11:30:00.00) 46.4 40.7 63.7 (2012/02/26 11:45:00.00) 48.8 41.0 67.5 (2012/02/26 12:00:00.00) 46.6 41.3 65.9 (2012/02/26 12:15:00.00) 50.0 43.9 66.7

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/26 12:30:00.00) 47.2 42.8 65.2 (2012/02/26 12:45:00.00) 47.7 41.4 65.8 (2012/02/26 13:00:00.00) 52.2 43.6 73.9 (2012/02/26 13:15:00.00) 53.5 43.3 78.0 (2012/02/26 13:30:00.00) 49.3 43.4 73.6 (2012/02/26 13:45:00.00) 49.9 43.3 65.5 (2012/02/26 14:00:00.00) 47.6 42.3 62.2 (2012/02/26 14:15:00.00) 48.2 41.7 70.6 (2012/02/26 14:30:00.00) 49.2 43.5 64.2 (2012/02/26 14:45:00.00) 47.3 42.7 60.5 (2012/02/26 15:00:00.00) 50.9 44.1 70.6 (2012/02/26 15:15:00.00) 49.9 43.2 68.9 (2012/02/26 15:30:00.00) 47.8 44.2 66.4 (2012/02/26 15:45:00.00) 63.9 44.2 73.3 (2012/02/26 16:00:00.00) 57.9 44.1 71.7 (2012/02/26 16:15:00.00) 55.2 44.9 77.9 (2012/02/26 16:30:00.00) 53.1 45.2 77.0 (2012/02/26 16:45:00.00) 50.4 45.5 65.0 (2012/02/26 17:00:00.00) 50.1 44.5 68.6 (2012/02/26 17:15:00.00) 48.1 44.1 61.9 (2012/02/26 17:30:00.00) 46.7 42.7 62.4 (2012/02/26 17:45:00.00) 48.3 43.0 64.7 (2012/02/26 18:00:00.00) 47.0 41.7 63.1 (2012/02/26 18:15:00.00) 45.7 39.8 64.2 (2012/02/26 18:30:00.00) 49.4 43.2 69.8 (2012/02/26 18:45:00.00) 47.6 42.0 60.7 (2012/02/26 19:00:00.00) 45.7 42.1 55.5 (2012/02/26 19:15:00.00) 45.3 43.0 55.9 (2012/02/26 19:30:00.00) 50.3 43.5 68.8 (2012/02/26 19:45:00.00) 47.5 41.9 65.5 (2012/02/26 20:00:00.00) 42.9 40.5 53.8 (2012/02/26 20:15:00.00) 45.7 39.7 64.4 (2012/02/26 20:30:00.00) 45.5 40.1 63.7 (2012/02/26 20:45:00.00) 49.8 39.5 65.1 (2012/02/26 21:00:00.00) 45.7 38.2 61.3 (2012/02/26 21:15:00.00) 43.1 39.4 62.5 (2012/02/26 21:30:00.00) 43.6 39.1 63.6 (2012/02/26 21:45:00.00) 50.7 40.1 71.1 (2012/02/26 22:00:00.00) 41.0 38.3 48.1 (2012/02/26 22:15:00.00) 42.3 39.1 66.8 (2012/02/26 22:30:00.00) 40.3 37.7 58.3 (2012/02/26 22:45:00.00) 40.5 37.5 68.0 (2012/02/26 23:00:00.00) 39.1 36.5 48.3 (2012/02/26 23:15:00.00) 39.2 36.5 51.6 (2012/02/26 23:30:00.00) 40.3 36.7 52.0 (2012/02/26 23:45:00.00) 38.2 35.0 48.4 (2012/02/27 00:00:00.00) 37.6 34.0 55.8 (2012/02/27 00:15:00.00) 39.2 33.9 58.4 (2012/02/27 00:30:00.00) 40.3 33.0 57.2

POSITION 4 ‐ ST. MARY & ST.MARGARET'S CHURCH Date/Time LAeq LA90 LAMAX (2012/02/27 00:45:00.00) 37.0 33.5 49.5 (2012/02/27 01:00:00.00) 37.0 32.8 55.3 (2012/02/27 01:15:00.00) 37.4 32.6 56.2 (2012/02/27 01:30:00.00) 36.6 31.7 54.7 (2012/02/27 01:45:00.00) 37.7 31.1 62.9 (2012/02/27 02:00:00.00) 37.1 32.5 52.3 (2012/02/27 02:15:00.00) 37.3 33.4 53.4 (2012/02/27 02:30:00.00) 37.3 33.2 52.7 (2012/02/27 02:45:00.00) 34.7 31.4 46.1 (2012/02/27 03:00:00.00) 35.4 31.5 54.4 (2012/02/27 03:15:00.00) 39.2 33.2 55.3 (2012/02/27 03:30:00.00) 36.3 32.2 51.0 (2012/02/27 03:45:00.00) 37.5 33.2 52.3 (2012/02/27 04:00:00.00) 39.4 33.5 55.5 (2012/02/27 04:15:00.00) 38.6 34.3 51.5 (2012/02/27 04:30:00.00) 41.3 34.4 54.6 (2012/02/27 04:45:00.00) 41.8 34.1 57.4 (2012/02/27 05:00:00.00) 42.7 35.1 56.8 (2012/02/27 05:15:00.00) 42.7 36.2 56.0 (2012/02/27 05:30:00.00) 43.6 38.6 58.4 (2012/02/27 05:45:00.00) 45.8 41.4 58.4 (2012/02/27 06:00:00.00) 46.1 41.7 57.7 (2012/02/27 06:15:00.00) 47.2 42.8 62.0 (2012/02/27 06:30:00.00) 51.1 43.3 77.4 (2012/02/27 06:45:00.00) 52.6 48.7 66.0 (2012/02/27 07:00:00.00) 52.5 49.6 65.3 (2012/02/27 07:15:00.00) 50.9 47.2 63.1 (2012/02/27 07:30:00.00) 50.2 47.3 73.9 (2012/02/27 07:45:00.00) 52.6 48.1 68.6 (2012/02/27 08:00:00.00) 52.4 48.4 66.9 (2012/02/27 08:15:00.00) 54.4 49.2 67.2 (2012/02/27 08:30:00.00) 52.8 48.3 69.3 (2012/02/27 08:45:00.00) 54.1 48.1 69.4 (2012/02/27 09:00:00.00) 50.5 46.2 68.6 (2012/02/27 09:15:00.00) 50.7 46.2 67.7 (2012/02/27 09:30:00.00) 52.3 46.7 69.8 (2012/02/27 09:45:00.00) 51.7 46.1 67.5 (2012/02/27 10:00:00.00) 51.9 44.9 67.7 (2012/02/27 10:15:00.00) 49.3 44.3 68.0 (2012/02/27 10:30:00.00) 49.2 44.4 63.8 (2012/02/27 10:45:00.00) 51.0 44.6 68.7 (2012/02/27 11:00:00.00) 52.1 45.1 69.3 (2012/02/27 11:15:00.00) 50.0 44.9 70.3 (2012/02/27 11:30:00.00) 50.6 45.5 66.3 (2012/02/27 11:45:00.00) 50.7 45.5 67.2 (2012/02/27 12:00:00.00) 48.5 44.8 63.7 (2012/02/27 12:15:00.00) 49.7 44.2 62.9

Beyond Green Developments North Sprowston & Old Catton

Appendix 11.1: White Young Green Desk-Based Assessment

ES Volume 2: Technical Appendices

WYG Environment

North East Norwich

Desk Based Assessment

January 2012

WYG Environment

REPORT CONTROL Document:

Desk Based Assessment

Document Reference:

A072885_DTS_04Jan12_V1_KB RM CC

Site Details:

North East Norwich

Client:

Environmental Perspectives & Beyond Green

Job Number:

A072885

File Origin:

P:\Projects\A072000\A072885 NE Norwich\Report\Text_V1\A072885_DTS_04Jan12_V1_KB RM CC.doc

Document Checking:

Primary Authors

Richard Tonge / Keith Boyd

Signed:

Verified By

Catherine Cooke

Signed:

Issue

Date

Status

Checked for Issue

Jan 2011

Final

WYG Environment

CONTENTS CONTENTS

0.0

EXECUTIVE SUMMARY

1.0 1.1 1.2 1.3

INTRODUCTION Objective and Scope Current and Proposed End Use Terms and Conditions

3 3 4 4

2.0 2.1 2.2

SITE DETAILS Site Location Site Description 2.2.1 Roads 2.2.2 Fields 2.2.3 Topography 2.2.4 Forests 2.2.5 Developments Surrounding Land Uses 2.3.1 Rackheath Industrial Estate 2.3.2 Norwich International Airport

5 5 5 5 6 6 7 7 8 9 9

2.3

3.0 3.1 3.2

3.3

3.4

3.5 3.6 3.7 4.0 4.1 4.2

4.3

ENVIRONMENTAL SITE CHARACTERISTICS General Geology 3.2.1 Radon 3.2.2 BGS Recorded Mineral Sites 3.2.3 Natural and Mining Cavities Hydrogeology 3.3.1 Aquifer Classification 3.3.2 Groundwater Flow Characteristics 3.3.3 Licensed Groundwater Abstractions Hydrology 3.4.1 Watercourses 3.4.2 Surface Water Drainage 3.4.3 Licensed Surface Water Abstractions 3.4.4 Discharges 3.4.5 Flood Potential 3.4.6 Recorded Pollution Incidents Waste 14 Sensitive Land Uses Contemporary Trade Directory

10 10 10 12 12 12 12 12 13 13 13 13 13 13 13 14 14

SITE HISTORY Introduction Large Scale Maps (1:10,000 and 1:10,600) 4.2.1 Map Segment A 4.2.2 Map Segment B 4.2.3 Map Segment C 4.2.4 Map Segment D 4.2.5 Map Segment E 4.2.6 Map Segment F Small Scale Maps (1:1,250 and 1:1,250) 4.3.1 Map Segments C7, C3, C4 and C12 4.3.2 Map Segment C8 4.3.3 Map Segment D9 4.3.4 Map Segment D5

16 16 16 16 17 17 18 19 19 20 20 20 20 21

WYG Environment

part of the WYG Group

15 15

creative minds safe hands

www.wyg.com

WYG Environment 4.3.5 4.3.6 4.3.7 4.3.8 4.3.9 4.3.10 4.3.11 4.3.12 4.3.13 4.3.14

Map Map Map Map Map Map Map Map Map Map

Segment Segment Segment Segment Segment Segment Segment Segment Segment Segment

D1 B13 D10 D6 D2 B14 D11 D7 D3 D8 and D12

21 21 21 22 22 22 22 23 23 23

5.0 5.1

CONSULTATIONS Consultations 5.1.1 Planning Department 5.1.2 Building Control 5.1.3 Environmental Health

24 24 24 25 25

6.0 6.1 6.2

6.3 6.4 6.5 6.6 6.7

CONCEPTUAL SITE MODEL General Summary of Potential Ground Contamination Risk Sources 6.2.1 On site Ground Contamination Risk Sources 6.2.2 Off site Ground Contamination Risk Sources Risk Pathways Receptors Qualitative Risk Assessment: Approach Qualitative Risk Assessment: Discussion Conceptual Site Model

26 26 26 27 27 28 28 29 30 34

7.0 7.1 7.2

SUMMARY AND RECOMMENDATIONS Summary Recommendations

37 37 37

DRAWINGS

APPENDIX A

APPENDIX B

APPENDIX C

APPENDIX D

Drawings Figure SK01 Figure SK02 Figure SK03

Site Location Plan Historical Map Index Plan Conceptual Site Model

Appendices Appendix A Appendix B Appendix C Appendix D

Report Conditions Historical Maps Selected Site Photographs Site Boundary and Proposed Development Plan

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WYG Environment 0.0

EXECUTIVE SUMMARY

Introduction

WYG Environment were commissioned by Beyond Green to undertake a desk based assessment of site covering an area situated to the north east of Norwich.

Current Site Location & Description

The site comprises approximately 520 hectares of land situated to the north east of Norwich in Norfolk. The land is predominantly rural with some residential development and established commercial farm holdings.

Site History

Historical maps dating back to c.1880 show land within the site boundary as predominantly rural, with limited development restricted to farm holdings and detached residential developments. Very little changes have occurred to these areas over the past century. Roads that transgress the site and define the site boundaries typically follow the routes of roads and tracks established during the early development of the land. Historical maps show land surrounding the site has been predominantly rural, until the 1940s when RAF Rackheath is shown to the east of the site with technical buildings bordering the site. RAF Rackheath was disbanded and reclaimed for agriculture purposes post WWII with all associated buildings and hard stand areas removed. Norwich Airport was developed c.1960 and remains to this day, runways and taxiing routes border the site to the west. Suburbs north of Norwich have encroached towards the southern boundary. Development to the south included an industrial area which denoted as factories during c.1940 to 1970 located approximately 1km from the south west boundary.

Geology

The site is underlain by superficial deposits overlying the Crag Group Deposits which in turn overly the White Chalk. Superfical deposits (Happisburgh Glaciogenic Formation, Lowestoft Formations and Brickearth) are all typically variable in composition with both predominantly coarse and fine grained horizons. Crag Group Deposits (including the Wroxham Crag Formation) comprise gravels interbedded with sands, silts and clays. The deposits are glacial in origin with highly variable lithology. The underlying White Chalk comprises chalk with flints. The area is not known for metastabilty within the chalk and the BGS National Geoscience Information Service have the classed the site as having a very low collapsible stability hazard potential.

Hydrogeology

According to the EA Groundwater Vulnerability Maps, much of the site is underlain by a Secondary Aquifer (Class A) associated with the superficial deposits and Crag Group Deposits. The underlying White Chalk is classified as a Primary Aquifer.

Hydrology

Rackheath Springs is situated on the fringes of the north east boundary of the site and comprises a fishery consisting of two interconnecting ponds measuring approximately 2.0 and 1.5 Hectares. The ponds are situated along the route of a tributary to the River Waveney flowing from north to south towards Norwich.

Conceptual Site Model & Preliminary Risk Ratings

Based on the desk based review of readily available information pertaining to the site, a summary of the potential environmental and human health risks associated with the identified receptors at, and immediately surrounding, the site is assessed as follows:

WYG Environment

•

Secondary Aquifer (superficial deposits): Low to Moderate

•

Surface Water: Moderate

•

Site users: Low to Moderate

•

Development ground Workers: Low

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Conclusions Recommendations

•

Off site users (nearby residents): Very Low

•

Adjacent land quality: Low

•

Land quality of the site: Low

Considering the potential risk sources identified at the site, the overall risk rating for the site is currently assessed to be Low to Moderate. This reflects the current uncertainty relating to the commercial agricultural activities undertaken on the site and the potential for those to impact on site users. Information on the quality of shallow ground would enable the uncertainty associated with this risk assessment to be checked or to be reduced. The following recommendations are proposed: •

It is recommended that an intrusive ground investigation is undertaken to characterise ground conditions at the site, targeting areas of development with history of intensive agricultural activities to improve the confidence in the assessment of potential risks to human health receptors. It is recommended that the environmental samples collected from the site be analytically tested for a wide range of common contaminants including those specifically relating to agricultural site activities such as fertilizers, pesticides, herbicides.

•

It is recommended that a generic quantitative risk assessment be undertaken upon receipt of the ground investigation data to better assess risks posed to identified receptors and this would need to be defined for specific areas of the site targeted by bespoke investigations.

•

It is recommended that consideration of geotechnical issues pertaining to the proposed development be given when scoping any future ground investigation works.

This sheet is intended as a summary of the factual assessment of the site in relation to ground contamination. It does not provide a definitive engineering analysis. Further works have been recommended.

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WYG Environment 1.0

INTRODUCTION WYG Environment Planning Transport Limited (WYG) was commissioned by Environmental Perspectives on behalf of Beyond Green to carry out a desk based geo-environmental assessment of the site known as North East Norwich (referred to herein as ‘the site’).

1.1

Objective and Scope The objective of this desk based assessment is to identify and assess potential pollutant linkages at the site in the context of current Contaminated Land Assessment guidance and regulation, broadly summarising the associated environmental implications and sensitivity of the site with an initial qualitative assessment of the potential risks. The scope of services commissioned as part of this desk top study includes the following: •

A record of the site visit and visual inspection walkover (of readily accessible areas where access is made available to us) including reference to information issued to us prior to such;

•

A discussion of the current site status and key associated environmental influences observable by general visual inspection around the site;

•

A historical site and area review, primarily referring to past issues of Ordnance Survey Maps but utilising other sources such as published database records as appropriate and readily available;

•

A discussion of the general expected ground and groundwater conditions within the topographical and area context referring to our own geological and hydrogeological maps library;

•

Details of preliminary data search by Envirocheck;

•

A ground contamination conceptual site model and assessment discussing the results of the research above not only concerning potential on-site conditions and contamination but also an overview of the potential for migration onto or off-site with respect to the surrounding neighbouring sites;

•

A qualitative ground contamination risk assessment;

•

An executive summary of the report;

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A desk study to support planning consultations related to ground contamination using PPS23 guidance and also including a discussion of other major potential in-ground considerations relevant to the area (such as checks on mining, radon, and dissolution features) where discernable from desk-based research.

1.2

Current and Proposed End Use The site comprises approximately 180 hectares of land situated to the north east of Norwich in Norfolk. The land is predominantly rural with established commercial arable crop and dairy farm holdings. It is our understanding that the site is within the Norwich growth triangle forming part of the East of England Development plan to meet housing requirements, being considered as a sustainable urban extension to Norwich.

1.3

Terms and Conditions This report is prepared in line with the agreed brief detailed within our proposal dated 31st August 2011 (ref. S03231 cc31Aug11 Geo-Env â&#x20AC;&#x201C; fee proposal letter) and is subject to the report conditions contained within Appendix A. The recommendations and opinions expressed in this report are based on the information provided and other sources of readily available information. Where reference has been made to other reports or information provided by the client, or from other third party sources, such data has been reviewed in good faith and it has been assumed that their contents are correct, as it is impractical to fully validate this data. WYG is unable to guarantee any third party information.

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WYG Environment 2.0

SITE DETAILS

2.1

Site Location The site is located on the fringes of north east Norwich and covers an area of approximately 180 Hectares. The site location is shown on Figure SK01 and the site boundary can be seen in Appendix D.

2.2

Site Description A site walkover was undertaken by WYG on 13th and 14th October 2011. The extent of the site is shown on Figure SK02. Selected site photographs are shown in Appendix C. The site is accessible by three roads; North Walsham Road which runs centrally from north to south across the site, Beeston Lane which runs centrally across the site connecting with North Walsham Road and Buxton Road situated further to the west. Additionally, St Faiths Road runs north to south and forms part of the west boundary of the site and Church Lane runs parallel with the south section of North Walsh Road. Wroxham Road (A1151) forms part of the eastern site boundary. Other tracks and private access driveways are located within the site leading from public roads up to developments and fields within the site. The majority of the site is divided into fields each of which covers an area ranging between 5 to 25 hectares. Forested areas including those associated with Beeston Park and the Springs are situated centrally within the site and on the east side of the site respectively. Several small-scale residential developments (one and two-storey brick buildings) are situated adjacent to roads, notably nearby the junction between Buxton Road and Beeston Lane. The three larger agricultural developments (Red Hall Farm, Beeston St Andrews Hall and Park Farm) present on the site are discussed in detailed in Section 2.2.5. 2.2.1

Roads

St Faiths Road, Buxton Road and North Walsham run north to south across the site. North Walsham Road is adjoined from the east by Church Lane Road and Beeston Lane traverses the site from west to east. St Faiths Road is located at the western boundary of the site. The wearing course comprised asphalt and was in good condition with no obvious signs of damage, subsidence or slippage noted. Drainage was generally directed into verges and drainage ditches adjacent to the roads, and no sub-surface drains were noted. Drainage ditches were dry at the time of the site walkover. Norwich Airport lies to the west of the road and the east boundary comprises

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WYG Environment fields with hedgerows up to 2.5m high and tree lines forming the boundary. Buxton Road runs from north to south across the site. The wearing course generally comprised asphalt and was in good condition with no obvious signs of damage, subsidence or slippage noted. Drainage was generally directed into verges and drainage ditches adjacent to the roads, and no sub-surface drains were noted. Drainage ditches were dry at the time of the site walkover. The road is bordered in the centre of the site around the junction with Beeston Lane by residential dwellings of one to two story brick built, pitched roof construction. An electric substation is situated adjacent to the northern most house in the row (Photo 1). Evidence of services, including gas, were noted under the road surface. There is no evidence of drainage, however, the road is bordered by a raised grass verge which encompasses a 0.5metre drainage ditch in some locations. The ditches were dry at the time of the walkover. North Walsham Road (B1150) and Wroxham Road (A1151) run from south, south west to north, north east and are of asphalt construction. These are busy trunk roads servicing Norwich from the north east. Both roads contain drainage at junctions. 2.2.2

Fields

The site is largely used for agricultural purposes. During the site walkover, fields were either ploughed, newly seeded or fallow, and so crop identification was not possible. Fields adjacent to Red Hall Farm are used for equine grazing and exercise. Field size ranged from just over one hectare to approximately 18 hectares. Fields adjacent to St Andrews Hall, within the Beeston Park private estate were used for sheep grazing. Evidence of grass treatment was noted (Photo 2) and comprised a tractor, spraying equipment, and un-bunded disused barrels.

2.2.3

Topography

Overall, the site is low lying and flat, the highest topographic contour is 30metres above ordnance datum and lies across the southern section of the site, with a gentle gradient sloping towards the north and north east of the site towards the â&#x20AC;&#x2DC;The Springsâ&#x20AC;&#x2122; which are a series of connected ponds and lakes draining to the north east.

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WYG Environment 2.2.4

Forests

The site has multiple plantations situated across the site area. All of the forested areas are located within the Beeston Estate and owned by the Beeston trustees. The plantations are situated mainly around two centres to the west and east of North Walsham Road. Red Hall Farm to the west of North Walsham Road is bordered by a several plantations including the Lawn Plantation to the southwest of the farm. Plantations range from approximately 20 to 60m wide, and up to 200metres in length. The plantations in this area were generally composed of varying tree types and of varying height ranging from approximately 5 to 20m in height. Beeston St Andrew Hall and Park Farm are situated to the east of North Walsham Road, within the private Beeston estate. The plantations surround St Andrews Hall and Park Farm range from approximately one square kilometre up to approximately 5km2.

These

plantations vary in shape, with the Spanish plantation in the south being a half oval. There is also the 400m by 60m rectangular north-south orientated Shrubbery Plantation to the west of St Andrews Hall. The plantations to the west of North Walsham Road vary in composition and height and can be summarised as mixed woodland with height ranging from floor level shrubbery to mature trees over 15m tall. The Spixworth plantation can be found at the north of the site and is composed of mixed woodland and is approximately 1km2 in size. Sprowston plantation can be found on the south eastern boundary of the site parallel with the Wroxham Road. The plantation is approximately 3km long and 0.5km wide and is made up of seedlings to mature trees and shrubbery. 2.2.5

Developments

Red Hall Farm is located in the centre of the site slightly north of the centre point. The farm is run as a livery stables for horses with fields immediately adjacent to the farm used for grazing. These fields are bounded by forest plantations (detailed in Section 2.2.4). The plantations are surrounded to the west, north and south by large arable farming fields. It is assumed that these fields are tended and serviced from Red Hall Farm. The farm house itself is a three to four storey brick construction with a pitched slate tiled roof. There are several smaller outbuildings of the same composition. The buildings appear to be generally in good condition and date from the 19th century and include. There are three large barns/workshops at the farm. These barns looked to be of more recent construction and were composed of new brick work walls to gutter level and corrugated

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WYG Environment asbestos cement type side panelling sheet roofing (Photo 3). The side wall construction varied between corrugated metal and brickwork. The barn situated immediately to the east of the courtyard displayed a sign outside reading “Highly Toxic Gas Keep Out” (Photo 4). There was also evidence on site for the use of chemicals, lubricants and fuels associated with farming, (Photo 5). At the northern most side of the farm was a large diesel fuel tank, (Photo 6). The fuel tank was operational and didn’t appear to be bunded. There was a disused diesel fuel pumping station in the north west corner of the car park (Photo 7). The tank supplying the pump could not be located during the site walkover, but it could be assumed that the tank is underground. Vehicle access tracks routes were generally constructed with asphalt or concrete hardstanding, however the areas underneath the operational and disused diesel fuel dispensers comprised grass and earth. Beeston St Andrews Hall is situated on Beeston Lane to the east of North Walsham Road. St Andrews Halls is a large brick build two storey residential dwelling that is currently inhabited. There is a pitched and gabled slate tiled roof and several chimney stacks. Several single story outbuildings of similar construction border the main house and gardens.

Andrews Hall has extensive private gardens, in which a pond and a drained swimming pool were observed. Park Farm is situated to the east of St Andrews Hall, accessed from Beeston Lane and comprises several buildings and 3 ponds within the immediate grounds. 2.3

Surrounding Land Uses The site boundaries are summarised within Table 2.1 below. Table 2.1: Summary of Surrounding Land Uses Direction

Description of Surrounding Land Use

North

Rural with Spixworth Town beyond

East

Rural and Rackheath Industrial Estate

South

Residential

West

Rural and Norwich International Airport

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WYG Environment 2.3.1

Rackheath Industrial Estate

Rackheath Industrial estate is situated adjacent to the south east boundary of the site covering an area of approximately 6hectares and comprises light industrial and wholesale units, mainly housed in portal framed warehouses. 2.3.2

Norwich International Airport

Norwich Airport is situated to the west of the site, terminal buildings, parking and storage facilities are located on the south side of the Airport. The main runway is orientated east to west; therefore the site lies below the flight path to the east.

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WYG Environment 3.0

ENVIRONMENTAL SITE CHARACTERISTICS

3.1

General The following information sources have been reviewed to obtain generic and site specific information on geological, hydrological, hydrogeological and other characteristics of the site which includes: 1.

British Geological Survey Map: Sheet 161 â&#x20AC;&#x2DC;Norwichâ&#x20AC;&#x2122; (Drift and solid edition);

British Geological Survey Geology of Britain Viewer (www.maps.bgs.ac.uk/geologyviewer);

British Geological Survey lexicon (http://www.bgs.ac.uk/lexicon);

Groundwater Vulnerability Map, Environment Agency website (www.environmentagency.gov.uk);

Envirocheck Report for Red Hall Bungalow, Beeston, Norwich, NR12 7BL dated September 2011 (Landmark Information Group, 2011) and

6. 3.2

Site reconnaissance visit by WYG.

Geology Reference to the British Geological Survey (BGS) Map (Sheet 161) and the BGS internet geology viewer indicate that the majority of the site is underlain by superficial deposits comprising

the

Happisburgh

Glaciogenic

Formation

and

Lowestoft

Formations

(Undifferentiated) overlain by an area of Brick Earth in the north extremity of the site. Superficial deposits are underlain by Crag Group deposits, which are in turn differentiated as the Wroxham Crag Formation in the southern portion of the site. Crag Group Deposits are underlain by undifferentiated White Chalk of the White Chalk Sub-Group. The BGS lexicon describes the aforementioned geological units as follows:

Brickearth The Brickearth is described as variable soils grading between silt and clay, usually yellowbrown and massive.

Happisburgh Glaciogenic Formation and Lowestoft Formations (Undifferentiated) The Lowestoft Formation forms an extensive sheet of chalky till, together with outwash

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WYG Environment sands and gravels, silts and clays. The till is characterised by its chalk and flint content. The carbonate content of the till matrix is about 30%, and tills within the underlying Happisburgh Formation have less than 20%. The Lowestoft Formation unconformably overlies a large range of Mesozoic, Palaeogene, Neogene and early Pleistocene bedrock formations, and in eastern East Anglia also unconformably overlies the older glaciogenic Happisburgh Formation (formerly Corton Formation on some maps). The tills within the Lowestoft Formation are described to typically contain a significantly higher percentage of chalk than the underlying tills. Gravels in the Lowestoft Formation contain common erratics from Scotland and northern England, and abundant chalk where not decalcified. The thickness is extremely variable and the cross sections displayed on the maps show that the deposit is thickest in buried valleys where locally up to approximately 60m may be present.

Crag Group Deposits (Wroxham Crag Formation) The formation comprises a sheet of interbedded gravels up to 20m thick with sands, silts and clays. The gravels are described to be dominated by flint (up to c.80%) and by quartz and quartzite (up to c.60%), with far-travelled minor lithologies including Carboniferous chert, Rhaxella chert, Greensand chert, Spilsby Sandstone and felsic volcanic rocks from North Wales. The deposits are interpreted as estuarine and near-shore marine in origin.

White Chalk The White Chalk comprises chalk with flints. The thickness is variable and the most complete successions in Norfolk are thought to be up to 350m thick. The BGS National Geoscience Information Service has assigned risk ratings to ground stability hazards located on site as detailed in Table 3.1. Table 3.1 Summary of Ground Stability Hazards Ground Stability Hazard

Hazard Potential

Potential for Collapsible Stability Hazards

Very Low

Potential for Compressible Ground Stability Hazards

No Hazard

Potential for Landslide

Very Low

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3.2.1

Ground Stability Hazard

Hazard Potential

Potential for Running Sand

Very Low

Potential for Shrinking or Swelling Clay

Low

Radon Less than 1% of homes located within the site boundary are above the Radon protection action level.

3.2.2

BGS Recorded Mineral Sites Sand and gravel are extracted from open cast quarry at Spixworth which is situated over 500m northwest of the site.

3.2.3

Natural and Mining Cavities There are no records of natural or manmade cavities within the site boundary.

3.3

Hydrogeology

3.3.1

Aquifer Classification According to the EA Groundwater Vulnerability Maps, much of the site is underlain by a Secondary Aquifer (Class A) associated with the superficial deposits (i.e., Happisburgh Glaciogenic Formation and Lowestoft Formations (Undifferentiated) and Crag Group Deposits (Wroxham Crag Formation). The underlying White Chalk is classified as a Primary Aquifer. A Secondary Aquifer Class A consists of permeable layers capable of supporting water supplies at a local rather than strategic scale. In some cases these form an important source of base flow to rivers. Secondary Aquifers were generally formerly classified by the Environment Agency as Minor Aquifers. Soils are mostly classified as having a high leaching potential. The area adjacent to the east of the sites within Zone III (the total catchment) of an EA designated Groundwater Source Protection Zone. The Zone II boundary (Outer Source Protection Zone) lies north east of the site; approximately 200m away. During the site walkover, a groundwater well was identified at Park Hall Farm within the

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WYG Environment stable yard. It is unknown whether this well is currently used for groundwater extraction although no licenses are recorded for the site (see section 3.3.3). Of note, the well is positioned within 15m of a disused fuel pump. 3.3.2

Groundwater Flow Characteristics Regional groundwater flow within the site area is expected to flow towards the south towards the River Wensum, which runs centrally through Norwich. It is expected that local drainage ditches, sewers and streams are likely to affect flows on a local scale.

3.3.3

Licensed Groundwater Abstractions There are no groundwater abstraction licences within 1km of the site.

3.4

Hydrology

3.4.1

Watercourses Rackheath Springs is situated on the fringes of the north east boundary of the site and comprises a fishery consisting of two interconnecting ponds measuring approximately 2.0 and 1.5 Hectares. The ponds are situated along the route of a tributary to the River Waveney flowing from north to south towards Norwich.

3.4.2

Surface Water Drainage Given the predominance of soft cover across the site, surface water is expected to soak into the fields or drain into ditches running along field boundaries and landscaped areas and ultimately into local rivers and streams discussed in Section 3.4.1.

3.4.3

Licensed Surface Water Abstractions There are no licensed surface water abstractions reported within the site boundary or within 1km of the site.

3.4.4

Discharges There appears to be one discharge consent located within the site boundary as detailed in Table 3.2. Table 3.2 Discharge consents located within the site boundary Operator

Location

Type of discharge

Receptor

E M Dewing & Partners

Red Hall Farm Beeston St Andrew NR12 7BP

Arable Farming Trade Discharge â&#x20AC;&#x201C; Agricultural and Surface

Groundwater (discharge onto land)

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3.4.5

Flood Potential According to the flood maps published on the EA website, the site is not in an area at risk from flooding from rivers or seas without defences.

3.4.6

Recorded Pollution Incidents There are no recorded pollution incidents on the site. There are 7 recorded pollution incidents to controlled waters recorded in the Envirocheck Report (Landmark Information Group, 2011) outside of the site boundary as detailed in Table 3.3.

Table 3.3 Summary of Recorded Pollution Incidents within the Envirocheck Date Orientation Pollutant Severity Receiving Water 1/3/1991

East

2/10/1993

Storm Sewage

Category 3 Minor incident

–

Potential River

Unknown

Category 3 Minor incident

–

Not given

Unknown

Category 3 Minor incident

–

River Wensum Catchment

South West 28/05/1993

30/08/1997

North East

‘Miscellaneous Natural’

–

Category 3 Minor incident

–

Beeston Lake

19/01/1999

Southwest

Miscellaneous Inert Suspended Solids

Category 3 Minor incident

–

Sprowston Watercourse

27/081996

South

Miscellaneous Natural

Category 3 Minor incident

–

River Catchment

Bure

27/08/1996

South

Unknown

Category 3 Minor incident

–

River Catchment

Bure

3.5

Waste

There are no historical or local authority registered landfill sites located within the site boundary or within 1km of the site boundary. However there are four potentially infilled areas of land situated approximately 216m to 280m south of the site, these are listed as ‘Unknown Filled Ground (pond, marsh, river, stream, dock etc)’ within the Envirocheck report (Landmark Information Group, 2011)`.

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WYG Environment Three licensed waste management and transfer facilities are listed within the Envirocheck Report (Landmark Information Group, 2011), all located outside of the site boundary as detailed in Table 3.4. Table 3.4 Summary of Waste Management / Transfer Facilities Site Name / Location Distance Type of Waste (m / orientation) 3a and 5 Wendover Road Rackheath Industrial Est Rackheath NR13 6LH

East

Listed as household, commercial and industrial waste transfer and end of life vehicles

Unit 1b Hudson Close

East

End of life vehicles

East

Metal recycling (vehicle dismantlers)

Notes This is entered as four separate listings at this address

Rackheath Industrial Est, Rackheath NR13 6NW

1/2 Chestnut Court, Rackheath Industrial Est, Rackheath NR13 6LH

3.6

Sensitive Land Uses The Norfolk Broads is listed as an environmentally sensitive area. The southern extent of the boundary of the broads is situated approximately 600m north of the site boundary. This site, in its entirety, is listed by the Department for Environment, Food and Rural Affairs (DEFRA) to be a Nitrate Vulnerable Zone (NVZ).

3.7

Contemporary Trade Directory Norfolk Cabinet Makers located at Park Farm, Beeston Lane, Beeston is the only listed Contemporary Trade Directory entry located within the site boundary and is listed as inactive. Outside of the site boundary there are a number of active Contemporary Trade Directory entries. Notable activities include printers, garages / car body repairs / MOT centres, hydraulic engineers and fuel stations. The nearest active fuel station is located at the Tesco Store approximately 280m south of the site boundary.

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WYG Environment 4.0

SITE HISTORY

4.1

Introduction Extracts from available historical Ordnance Survey (OS) maps provided by the Envirocheck Report (Landmark Information Group, 2011) pertinent to the site were reviewed to establish the recorded sequence of developments on the site and surrounding areas. Since obtaining the maps the site boundary has been changed and as such the maps presented in Appendix B are representative of the site area but do show not the current boundary. The reviewed maps are provided in Appendix B. The large scale maps (1:10,000 and 1:10,600) have been used to determine the broad development history of the site and surrounding areas and are discussed in Section 4.2. Specific areas of development ascertained from the small scale maps (1:2,500 and 1:1,250) are discussed in further detail in Section 4.3.

4.2

Large Scale Maps (1:10,000 and 1:10,600) The large scale historical maps (1:10,000 and 1:10,600) are presented on six separate segments (segments A to F) due to the large size of the site. A chronological review has been undertaken on the general development history of the respective areas including both site and site surroundings and is summarised in the following sections.

4.2.1

Map Segment A Map Segment A includes the area south west of the site boundary. The earliest map, dated 1885 - 1886, shows the village of Catton comprising a farm, a church and a residential development south west of the site. Much or the surrounding area is rural with field boundaries and wooded areas indicated. Further residential development occurs to the south and these developments encroach on the villages of George Hill, Sprowston, and St Clement / Mill Hill which later amalgamate forming a suburb on the north west outskirts of Norwich. Gravel pits, clay pits and brick fields are indicated to the east side of the aforementioned villages, the nearest of which to the site is at George Hill located south west of the site boundary. The preceding map from 1908 shows development of this area with four possibly agricultural rectangular buildings. Further developments are shown on the brick fields further south. By 1919 the brick field at George Hill is indicated to be disused. Subsequent maps show little development occurring on the south west of the site, with further

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WYG Environment expansion of the villages on the north west outskirts of Norwich. The map published in 1979 shows expansion of the village of Catton with residential development close to the south west border of the site. The area to the west of Catton is industrialised with developments marked as warehouses, factories and government buildings. This industrialised area remains to the present day and is now known as Hellesdon Industrial Estate bordering the south west of the site. Hellesden Industrial Estate includes industrial and commercial units associated with Norwich Airport located to the north (as discussed in Section 2.2). 4.2.2

Map Segment B Map Segment A includes the south of the site and the area further south beyond the boundary. The earliest map from 1885 to 1887 shows the area to be mostly rural with field boundaries and wooded areas shown. The village of Sprowston and, further to the east, the large residential development of Sprowston Hall, is shown on the south border of the site. The 1929 map shows an iron works development, comprising approximately 12 buildings situated approximately 1.5km south of the site. Ongoing expansion of Sprowston is shown on the 1938 map and the 1951 map shows the completed western expansion of Sprowston with semi-detached housing and associated gardens and roads. By 1971 - 1979 further expansion to Sprowston has taken place and the area to the south of the site is largely developed with terraced and semi-detached housing. During 1971 - 1979 the iron works further south expands and is denoted as â&#x20AC;&#x2DC;Factoriesâ&#x20AC;&#x2122;. From 2000 - 2011 this area is indicated to be an industrial estate with Sprowston Retail Park occupying the southern area.

4.2.3

Map Segment C

Map Segment C includes the western area of the site and the area further west beyond the boundary. Development within the site boundary on this portion of the site is limited and the site is initially shown from 1885 - 1887 as open with field boundaries. St Faiths Road and Buxton Road are shown running from north to south across the site and are positioned in their present day locations. The area to the west of the site is shown as rural with field boundaries and the small development of Wood Farm. There is little change shown on succeeding maps until 1971 when the footprint of Norwich

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WYG Environment Airport is indicated. The location and layout of the Airport, which is situated west of the site, does not appear to change significantly over the period 1971 - 2011. The layout comprises two main runways, orientated east west and north east to south west. Taxiing routes link the runways and form part of the western boundary of the site as detailed in Section 2.2. The

Norwich

Airport

(http://www.norwichairport.co.uk/content.asp?pid=103),

Website

summarises the development history of the airport as follows:

•

1967 – Norfolk County Council & Norwich City Council purchased and moved to the Horsham St Faith site and construction work commenced;

•

1969 – Fuel supply service became operational;

•

1970 – Customs authority granted approval for the export and import of all types of freight. Later this year a Plessey Radar system was installed;

•

1971 – Holiday charter flights started and customs granted it Cat. C which meant it became an approved customs airfield.;

•

1987 – Became a limited company. Improved financial position to a point where the company

could

invest

four

extensions

the

terminal

building.

Bunkers Hill and, further east, Spixworth Hall and associated grounds are shown to the north of the western portion of the site on the earliest map (1885 - 1887). These features remain to the present day with no significant developments indicated. 4.2.4

Map Segment D Map Segment D includes the central and eastern area of the site. Similar to map segment C the site is shown predominantly as rural / agricultural land. The main roads are shown from the earliest map dated 1885 to 1887 crossing the site, roughly following the present day routes, and shown initially as lanes and tracks before becoming North Walsham Lane, Beeston Lane and Church Lane in later maps. Development within the site is limited to the buildings associated with Park Farm, Beeston Village and Dairy Farm as discussed in further detail in Section 4.4. The wooded areas of Beeston Park and Sprowston Wood are shown from the earliest map and the boundaries of these areas have changed very little to this present day. Church Wood and surrounding fields are also shown to the north east of the east portion of the site and remain to the present day, with no significant development occurring to the north of the site. Similarly, from the earliest map, Tollspill Wood and surrounding fields are

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WYG Environment shown to occupy the area to the south of the east portion of the site and remain on the most recent plan, (dated 2011). Again, no significant development occurs in this area. 4.2.5

Map Segment E Map Segment E includes the area east of the site boundary. The earliest map dated 1887 shows the area to predominantly comprise open rural land with field boundaries and Blacksmith’s Wood in the west. A road, later known as Wroxham Lane, is present in this area. From the map dated 2000 Hill Farm; a detached residential development accessed via the this road. The area further east is initially shown as open ground with field boundaries, wooded areas, namely Ortolans Grove, and Blacksmiths Wood, with Green Farm and associated residential / agricultural buildings. An ‘Old Gravel Pit’ is indicated immediately north of Green Farm. Later maps show little significant changes to this area prior to 1951. The 1957 map shows Rackheath Airfield occupying the area to the east of the site. Information regarding the development history of the airfield obtained from the government website

(http://www.norfolkambition.gov.uk/Consumption/groups/public/documents/article/ncc081397)

summarised as follows; Rackheath airfield was constructed in 1943 and accommodated the 467th Bomb Group with 58 B-24 Liberator aircraft during WWII. The airfield was disbanded shortly after the war and very little of the runways, perimeter track, or hardstands remain. Most of the concrete has been broken up for hardcore, and the airfield site has been returned to farming. The technical site which was located on the west side of the airfield, approximately 800m west of the site boundary, has become the Rackheath Industrial Estate (reached from Green Lane) with several of the wartime buildings being modified or extended and used for light industry. This is apparent on the historical maps which show developments associated with the technical buildings remaining on the map dated from 1971 to the present day map, whist the footprint of the airfield itself is not shown. 4.2.6

Map Segment F Map Segment F covers the area to the north of the site beyond the 500m buffer. This area is largely rural / agricultural ground.

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WYG Environment 4.3

Small Scale Maps (1:1,250 and 1:1,250) The small scale historic OS maps (1:2500 and 1:1,1250) provided by the Envirocheck Report (Landmark Information Group, 2011) are presented as a number of segments each covering a 1:2,500 plot area. A number of segments make up the site area; the development history of each segment has been reviewed in chronological order with notable development discussed in the following Section. The index map showing the location of the tiles with the revised boundary can be seen in Figure SK.02

4.3.1

Map Segments C7, C3, C4 and C12

From the earliest map available dated 1882 until present day this area of the site appears undeveloped comprising predominantly fields and hedgerows. Spixworth Road/ Buxton Road is orientated south to north within this area of the site and has been present in some form since the map dated 1882.

4.3.2

Map Segment C8

From the earliest map available, dated 1882, shows the presence of the road which follows the route of the present day Spixworth/ Buxton Road running north to south. Lone Barn is present within this area comprising a number of buildings including one labelled as ‘Smithy’. Lone Barn is no longer labelled on the map from 1983 but a number of the buildings still remain. From 1966, to the west of Buxton Road there a row of 8-10 residential properties some with out-buildings with rear gardens and further west is a wind pump. From the same time a caravan site with associated grounds and a tennis court is shown in the southern area of this map. Detached residences labelled as ‘Spixworth House’ and ‘Homefield’ are shown to the south and west of the caravan site. A larger unreferenced development, unlikely to be residential, is shown to the south west of the caravan site. These remain present until the most recent map available.

4.3.3

Map Segment D9 On the earliest map available; 1882, this part of the site is undeveloped comprising fields with hedgerows. By 1907 the western edge of Spixworth Plantation is present on the east side of the site. Subsequently, further vegetation is present along the north edge of the site which appears to be an extension of the plantation. No significant changes are noted until the most recent map available dated 1993.

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WYG Environment 4.3.4

Map Segment D5

From the 1882 map a road runs from east to west with Red Hall Farm situated on the north side. A second road cuts across the south east corner of the map. Red Hall Farm is a complex of approximately ten buildings orientated around a central court yard area with a landscaped garden area to the south. Fields bounded by hedge rows with a wooded area to the south west surround Red Hill Farm and subsequent maps show little changes. The 1907 map labels the wooded area to the south west of the farm as ‘Lawn Plantation’ and a small residential development is shown north of the plantation.

A pond in the court yard is

labelled on the 1974 plan. A pavilion and rugby ground are shown in the south of the map segment in the 1974 map, this feature is labelled as Norwich Rugby Football club in the 1993 plan. Silos are shown to the south east of Red Hill Farm buildings on the 1993 plan.

4.3.5

Map Segment D1

The map of 1882 and shows a small road labelled as ‘Sweetbriar Lane’ leading from a small development to the south to field entrances located central to the map segment. Hedge rows are indicated along the field boundaries. Subsequent maps present incomplete coverage of the map segment and do not show any significant changes until 1974 where a pavilion and playing fields are indicated on the west side of Sweetbriar Lane. No significant further changes are indicated on subsequent maps dated to 1993. From 1882 until most recent map- North Walsham Road runs southwest to north east, in the centre to the east of Sweetbriar Lane. 4.3.6

Map Segment B13 From the earliest map available dated 1884 until the most recent map, dated 1993, this area of the site appears to predominantly comprise of undeveloped land comprising of fields and hedgerows and includes a track on the western boundary and church lane on the eastern boundary. Oak Lodge Farm encroaches on the far north east corner of this area from 1884 until the most recent map.

4.3.7

Map Segment D10

From the earliest map available, dated 1882, the southern part of Tithe Plantation as well as an undeveloped area labelled as ‘Broadwark’ is present in the north central and east parts of

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WYG Environment the site. In the south east portion is part of a shrubbery plantation. A road runs in the centre of the site from north to south. No significant changes appear on the maps until the most recent available dated 1993-1994.

4.3.8

Map Segment D6

The earliest map dated 1882 shows the junction between North Walsham Road, Church Lane and Beeston Lane roughly following present day routes. A rectangular feature (later labelled as a pond) is shown on the south side of the junction. A wooded area is shown on the east side of the map segment (later denoted as â&#x20AC;&#x2DC;Shrubbery Plantationâ&#x20AC;&#x2122;). The 1907 plan shows residential developments immediately to the north of the junction and further north on the west side of North Walsham Road. Residential development is also shown on the north side of Beeston Lane within the plantation. A larger development, later labelled as St Andrews Hall, is shown on the western side of the map segment. The 1974 plan shows two large developments associated with Red Hall Farm on the west side of the map segment. Subsequent map segments largely present incomplete information, until 1993 where the developments discussed above are shown in their present day locations. 4.3.9

Map Segment D2

The site remains predominantly undeveloped comprising of fields with hedgerows through all the maps dated 1882-1884 to 1993-1994. A small pond is noted in the centre of this segment and a further one along the south boundary of the site adjacent to a collection of trees. Foxburrow Plantation is present in the north east of this segment and has a track running through it. A road is situated in the west of the site running from south to north.

4.3.10 Map Segment B14

Between the earliest map of 1884 until 1967 this area of the site remained undeveloped. On the map of 1967 some development on area to the south encroaches on the site including the gardens of residential properties to the south east. By 1985, allotment gardens and the edge of a cemetery are present in the west portion on site.

4.3.11 Map Segment D11

The site remains predominantly undeveloped with a number of fields, hedgerows and trees from the earliest map available, dated 1882 until the most recent map available, dated

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WYG Environment 1994. A small development including a number of small buildings and a trackway is present in the western portion which is named as north Park Cottage from the map 1966-1967.

4.3.12 Map Segment D7

The earliest map is dated 1882 and shows both Park Farm and Dairy Farm in the northwest and northeast of the farm respectively and Beeston St. Andrew Hall with associated pond is shown located to the west of Park Farm. Both farms comprise a cluster of buildings with associated paddocks, ponds and out-buildings. By 1994 Dairy Farm is no longer present on the map however; Park Farm and Beeston St. Andrew Hall remain. Wooded areas including a garden plantation to the north west of the site and â&#x20AC;&#x2DC;Coppersholes Plantationâ&#x20AC;&#x2122; covering the central southern section of the map are indicated from the earliest map and remain until the most recent available map. Manor Farm Cottages is present from the 1907 map until the most recent map available dated 1994 and is located between the two farms. St Andrews Church and grounds (including a possible gravelyard) and Park Farm Cottages and East Lodge are located to the south east of Park Farm since the 1966 map until the most recent map.

4.3.13 Map Segment D3

From 1884 there is a road running along the south boundary of the site which later is labelled as the A551 (Wrexham Road). Much of this area of the site is fields with hedgerow and woodland and includes Sprowston Plantation (labelled only from 1907) adjacent to the road and Spanish Plantation in the farm north. From the 1966 map a pump house is present to the south of the Spanish Plantation.

4.3.14 Map Segment D8 and D12

From the earliest map, dated 1882-1884, this area of the site has remained undeveloped comprising of fields with hedgerows and trackway.

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WYG Environment 5.0

CONSULTATIONS

5.1

Consultations Various offices within Broadlands District Council have been consulted with regard to issues pertaining to the site and any responses received are summarized below.

5.1.1

Planning Department

The Broadlands District Council planning department database has been queried with regard to planning applications submitted between the dates of 1st January 1974 (earliest archive records) and 4th November 2011. Significant planning applications are summarised in Table 4.1 below. Table 4.1 Summary of Significant Planning Applications Date

Location

Application No.

Status

Description

02-06-1976

Red Hall Farm Beeston

760520

Approved

General Purpose Building

29-11-1994

Red Hall Farm Beeston

941322

Approved

Building For Use As An Equestrian Centre

04-04-2007

Land Adj. Moorsticks Buxton Road Spixworth

20070441

Approved

1. Change of Use and Extension of Building to Form Dwelling 2. Detached Double Garage 3. Temporary Standing of Two Mobile Homes

10-12-2007

Moorsticks Buxton Road Spixworth

20071750

Approved

Single & Two Storey Extension (to Include Demolition of Existing Swimming Pool Building)

06-05-2009

Foxley Wood,Buxton Road Spixworth Adj/Homefield Buxton Road Spixworth

20090586

Approved

Formation of wildlife pond

910665

Reserved Matters Approval

Bungalow (Reserved Matters)

19-04-1991

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WYG Environment 5.1.2

Building Control

The building control department of Broadlands District Council has been contacted to request information regarding construction issues specific to the site. A response is awaited.

5.1.3

Environmental Health

The environmental health department of Broadlands District Council has been contacted to request information regarding environmental issues specific to the site. A response was received from Stuart Moore (Pollution Control Officer) on 28th November 2011 and is summarized as follows:

Determined Part IIA sites: There are no sites determined under the Contaminated Land Regulations within the Broadland District Council area. Therefore there are no part IIA determined sites within the area under consideration or adjacent to it.

Potentially contaminated land:

The review of the historic maps has highlighted a sewage

treatments works at NGR 67678 31405. This is believed to still be operational and is thought to have been constructed as part of the USAF Rackheath air base which operated for a time during WWII. There are no other currently identified potentially contaminated sites within the area specified.

The following have been identified within a 500m buffer around the area under review: •

Norwich airport NGR 62250 31476

•

Former brickworks NGR 62334 31312

In addition to the above the following have been identified within 500m of the boundary of the area you have enquired about: •

Vehicle garage – formerly fuel sales and vehicle repair as well as sales NGR 62530 31228

•

Western boundary or former WWII USAF Rackheath airbase NGR 62777 31412

•

Former gravel pit possible unknown filled ground NGR 62236 31511

All of the above have been prioritised by Broadland District Council as part of its work under the Contaminated Land Regulations and will be considered in more detail in due course. Part of the former brickworks stated above has been considered under Part IIA and no further action was considered appropriate under these regulations.

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WYG Environment 6.0

CONCEPTUAL SITE MODEL

6.1

General Under the current UK environmental legislation (Environment Act 1995, Water Resources Act 1994, Environmental Protection Act 1990, Health and Safety at Work Act 1994, Town and Country Planning Act 1990 and Building Regulations 1985), land is defined as contaminated if there is a significant 'pollutant linkage'. This requires evidence of the presence of a contaminant (the Source), a pathway (or Pathways) through which contaminants could travel, and a Receptor that could be harmed by the contaminant. In addition the type of receptor and any harm must meet the descriptions of significant harm given in the statutory guidance. A site where a contaminant is causing, or is likely to cause, pollution of Controlled Waters also constitutes contaminated land. This section of the report presents a preliminary Conceptual Site Model (CSM), which includes a qualitative assessment of environmental risks associated with each of the pollutant linkages identified. The qualitative risk assessment is achieved by classifying the likely significance or severity of the risk and the probability of the risk actually occurring, to determine an overall risk for that particular pollutant linkage. The assessment has been undertaken with cognisance of; • The nature, volume and extent of any identified contamination Source (this may include for duration and frequency), • The Potential Pathways and identified primary Receptors, and • Due regard to the current site status.

6.2

Summary of Potential Ground Contamination Risk Sources The site has a limited development history and from examination of historical maps and observations made during the site reconnaissance, primary potential contamination sources on site are likely to relate to agricultural activities. Evidence of the following activities was noted on site as discussed in Section 2.2. Potential off site sources of contamination include Norwich Airport, infilled gravel pit, brickworks (although reported by the Council to have been dismissed as a potential Part IIA site), the industrial estate to the west and south west and the former RAF base to the east of the site.

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WYG Environment

6.2.1

On site Ground Contamination Risk Sources The majority of the site is rural / agricultural land and potential contaminant point sources include: •

Intensive live stock farming

•

Dairy Farming – including milk storage and transportation. Includes the Dairy farm noted on historic plans (Map Segment D7) to have been demolished.

•

Arable crop farming – including fertilizer storage

•

Silage production and storage

•

Agricultural machinery maintenance and services

•

Fuel storage

The potential point sources summarised above are largely situated in areas proximal to developments. It is noted that similar historic activities may have occurred that due to the transient nature of agricultural activities, were not evident on the historic maps or during the site walkover. It is therefore possible that these areas harbour unidentified point sources of contamination. The most notable point source of contamination identified during the site visit are fuel storage activities in Red Hall Farm, particularly the unbunded above ground diesel tanks and the potential presence of an underground fuel tank. Fields peripheral to developments on the site are predominantly used for crop cultivation and grazing ground and are less likely to harbour the point sources of contamination detailed above. However, it is considered that these areas may have been subject to the application of fertilizers and pesticides. Such activities are normally considered to be a diffuse source, however it is noted that dependent on the pathway, application of fertilizers and pesticides could, in certain circumstances, lead to accumulations of chemicals that potentially result in point sources of contamination. 6.2.2

Off site Ground Contamination Risk Sources Potential sources of off-site sources of ground contamination are summarised as follows. •

Technical buildings associated with the former RAF base located adjacent to the eastern site boundary that may have housed servicing and maintenance facilities, and fuel, oil and munitions storage facilities. The Council reports that a sewage treatment

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WYG Environment works comprised part of this development (NGR 67678 31405); •

Norwich Airport (NGR 62250 31476) and associated infrastructure located to the west of the site;

•

Industrial activity to the south and south west of the site;

•

Infilled gravel pit (NGR 62236 31511)– potential source of leachate generation and landgas migration;

•

Former Brickworks (NGR NGR 62334 31312) – albeit the Council report that this site has been dismissed as a Part IIA site; and

• 6.3

Vehicle Garage (NGR 62530 31228) which forms a potential source of leaked fuels.

Risk Pathways The key environmental pathways and exposure routes by which potentially contaminative substances can reach environmental and human health receptors are considered to be: •

Overland surface water runoff.

•

Contaminant migration through preferential pathways (e.g. drainage ditches historic drains and other underground services routes).

•

Leaching of contaminants through the unsaturated soils.

•

Lateral and vertical transport of contaminants within water underlying the site.

•

Lateral and vertical migration of gases/vapours.

•

Atmospheric transport and inhalation of airborne dusts, vapours and fibres (indoors and outdoors).

6.4

•

Dermal contact with soil and water.

•

Ingestion of soil particles and water.

Receptors The environmental and human health receptors on or surrounding the site includes: • The underlying Secondary Aquifer/s associated with the superficial deposits; • Surface water receptors (Rackheath Springs, River Waveney and tributaries and

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WYG Environment various unnamed ponds, drainage ditches, springs etc); • Site users: farm workers / residents and future residents; • Development and Ground Workers; • Off site users (nearby residents); • Land quality adjoining the site; and • Land quality of the site. 6.5

Qualitative Risk Assessment: Approach

The risk assessment has been carried out by assessing the severity of the potential consequence, taking into account both the potential severity of the hazard and the sensitivity of the target, based on the categories given in Table 6.1 below.

Table 6.1: Definition of Magnitude of Consequence Category

Definition

Severe

Acute risks to human health, catastrophic damage to buildings/property, major pollution of controlled waters

Medium

Chronic risk to human health, pollution of sensitive controlled waters, significant effects on sensitive ecosystems or species, significant damage to buildings or structures

Mild

Pollution of non sensitive waters, minor damage to buildings or structures

Minor

Requirement for protective equipment during site works to mitigate health effects, damage to non sensitive ecosystems or species

The likelihood of an event (probability) takes into account both the presence of the hazard and target and the integrity of the pathway and has been assessed based on the categories given in Table 6.2 below. Table 6.2: Definition of Probability of Exposure Category

Definition

High Likelihood

Pollutant linkage may be present, and risk is almost certain to occur in long term, or there is evidence of harm to the receptor

Likely

Pollutant linkage may be present, and it is probable that the risk will occur over

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WYG Environment

Category

Definition the long term

Low Likelihood

Pollutant linkage may be present, and there is a possibility of the risk occurring, although there is no certainty that it will do so

Unlikely

Pollutant linkage may be present, but the circumstances under which harm would occur are improbable

The potential severity of the risk and the probability of the risk occurring have been combined in accordance with the matrix presented in Table 6.3 below, in order to give a level of risk for each potential hazard. Table 6.3: Risk Assessment Matrix Potential Severity

High Likelihood

Probability of Risk

Likely Low Likelihood Unlikely

6.6

Severe

Medium

Mild

Minor

Very High

High

Moderate

Low/Moderate

High

Moderate

Low/Moderate Low

Moderate

Low/Moderate

Low

Very low

Low/Moderate

Low

Very low

Qualitative Risk Assessment: Discussion The following discussion of risks is summarised on the Conceptual Site Model shown in Section 6.7 and represented pictorially in SK.03. The sourceâ&#x20AC;&#x201C;pathwayâ&#x20AC;&#x201C;receptor linkages are developed around the information presented above.

Secondary Aquifer The site overlies the Secondary Aquifers associated with the superficial deposits.

Any

contamination present within unsaturated soils beneath the site has the potential to migrate

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WYG Environment to the underlying groundwater via infiltration and subsequent leaching, It is assumed that applied fertilizers and pesticides are mostly intercepted by biomass lowering the risk of a direct pathway-source linkage. However, heavy precipitation could result in surface run-off with high concentrations of chemicals with the potential to migrate to areas more prone to the downward migration of contaminants such as freshly ploughed or heavily grazed fields. Potential point sources of contamination such as silos and fuel storage are likely to have a more direct pathway to the aquifer via downward migration through permeable near surface soils where leakages and spills occurs. In addition, downward migration of contaminants from unlined slurry pits and ponds could occur via leaching through near surface soils into the aquifer. Considering the limited potential for sources of contamination to be present on the site as a whole, the potential risk posed to groundwater from ground conditions onsite is currently assessed to be Low but increasing to Moderate in areas potentially impacted by more intensive commercial farming activities, notably fuel and chemical storage/use within existing farm developments.

Surface Water The closest surface water body has been identified as Rackheath Springs and the River Waveny located to the north east of the site. The most likely route for potential contamination onsite to reach surface water is via lateral migration of surface water via drainage ditches, streams and drains or other service routes. There is also potential for lateral migration of ground water through the superficial deposits. Again it is likely that applied fertilizers and pesticides would largely be intercepted by biomass, although run-off during heavy precipitation could result in higher concentrations of chemicals entering water courses. Overall, considering the potential sources of contamination potentially containing high concentrations of nitrate / phosphate (fertilizers and slurries), and the presence of plausible pollutant pathways, it is considered that the risks to the nearby surface waters are potentially Low to Moderate. It is noted that the site lies within a nitrate vulnerable zone subject to Nitrate Pollution Prevention Regulations (2008).

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WYG Environment

Site Users Users of the site (farm workers / residents and future users) may come into direct contact with potential contamination sources on the site via dermal contact and incidental ingestion with shallow soils and/or inhalation of dusts and/or vapours (fertilizers and pesticides). The most sensitive site users are farm workers who would be considered to have the greatest degree of exposure. The degree of contact with fertilizers and pesticides and concentrated slurry in soils, which could be considered to contain microbiological hazards, would be a key factor in elevating this risk, however good practice including hygiene and the appropriate use of PPE would effectively mitigate risks. Evidence of potential point sources of contamination has been observed during the site walkover and on the historical maps concentrated within the developed areas of farms. Despite a slight degree of uncertainty in relation to the types of contaminants potentially present onsite risks to site users are currently assessed to be Low for the site as a whole owing to the low level of industrial activity in the area. However where more intensive farming activities have taken place this risk is elevated to Low to Moderate. It is recommended that a check of shallow soil conditions be undertaken, particularly in areas more susceptible to the presence of point sources of contamination (within farm developments), to enable a refinement of the assessment of risk to site users.

Ground Workers Proposed developments are likely to require excavations for foundation construction and landscaping / earthworks and exposure pathways for ground workers are considered to be predominantly via dermal contact, ingestion of soils and inhalation of dusts/vapours associated with any shallow soil and/or groundwater contamination. Potential sources of ground contamination are considered to be heightened in areas with history of intensive farming activity, and need to consider microbiological hazards from soils impacted by slurry / live stock in addition to more commonly encountered soil contaminants. However the potential risk to ground workers is currently assessed to be Low assuming that risks will be managed via the utilisation of appropriate PPE and good hygiene practices.

Off Site Users The nearest off site land users are Norwich Airport to the east and residential developments to the south and west. Due to the nature of their activities and the proximity to the site, the airport is not considered to be â&#x20AC;&#x2DC;sensitiveâ&#x20AC;&#x2122;. Residential occupants are typically considered to be a sensitive receptor but given the distance from any point contamination sources the

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WYG Environment risks are substantially reduced. It is considered that the most likely pathway for off-site migration of any contamination originating onsite would be via surface water runoff, windblown dust and/or groundwater migration. The probability of surface water runoff occurring is considered to be limited as a result of the existing drainage network in the public roads which is expected to inhibit runoff entering adjoining properties. Emissions of dusts from the site have the potential to pose adverse risks to offsite users, particularly during construction works. However, it is expected that construction and development works will be cognisant of potential impacts to surrounding neighbours as a result of dust emissions and will duly mitigate for these impacts via implementation of a Construction Phase Environmental Management Plan.

It may be

possible that groundwater contamination is migrating off-site and that off-site users may come into contact with volatile constituents within groundwater via volatilisation and subsequent inhalation. However, the presence of volatile constituents within groundwater onsite has not been confirmed and is considered to be unlikely. It is also considered very unlikely that off-site residents would come into direct contact with groundwater originating from the site. Overall, the potential risk of contamination associated with site migrating to off-site users is considered to be Low, although may be higher if volatile constituents were identified within the shallow groundwater.

Adjacent Land Quality Potential risks to surrounding land from ground conditions onsite derives from the surface water runoff and migration of groundwater off-site. Considering the potential for sources of ground contamination identified onsite, risks from the site to adjacent land quality are assessed to be Low.

Land Quality on Site The most significant off-site potential source of contamination identified is Norwich Airport, located to the west of the site.

The historical maps also show a number of

commercial/industrial developments, now mainly commercial / retail, to the south west and south of the site. It is likely that any above ground pollutant linkage would be intercepted by roads and drainage networks and that the only viable linkage associated with these potential sources of contamination include the lateral migration of contaminants through permeable deposits.

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WYG Environment Other sources include potential migration of landgas and leachate from infilling associated with the brickworks and gravel pits but the predominant soft cover across the area indicates that any such pollutants are likely to be dispersed before reaching the site boundary. Considering the proximity of the sources the potential for contaminant migration onto the site from adjacent land is currently assessed as Low. 6.7

Conceptual Site Model The table overleaf presents a Conceptual Site Model which has been illustrated in Figure SK.03 summarising the primary pollutant linkages associated with ground conditions recorded on site in the context of the use of the site.

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WYG Environment Table 6.4: Conceptual Site Model - Summary of Primary Pollutant Linkages Source Sorbed phase contamination in the unsaturated soil deposits Dissolved

phase

Receptors

Risk Magnitude

Risk Probability

Risk Classification

Soil leachate

Secondary Aquifer (Superficial)

Mild

Likely

Low to Moderate

Mild

Likely

Low to Moderate

Medium

Low likelihood

Low to Moderate

Mild

Low likelihood

Low

Site Users

Medium

Low likelihood

Low Moderate

Offsite Users

Mild

Low Likelihood

Low

Ground Workers

Medium*

Low Likelihood*

Low to Moderate*

Site Users

Medium

Likely

Moderate

Offsite Users

Medium

Unlikely

Low

Ground Workers

Medium*

Low Likelihood*

Low to Moderate*

Site Users

Medium

Low likelihood

Low to Moderate

Offsite Users

Medium

Unlikely

Low

Ground Workers

Medium*

Unlikely*

Low to Moderate*

Lateral

and

vertical

migration

Environmental

contamination in groundwater

Identified Pathways

groundwater

Surface

Water

(open

drainage

ditches) Secondary Aquifer (Superfical) Adjacent Land Quality (risks from site)

Sorbed phase contamination in

the

unsaturated

Inhalation of dust

soil

deposits

Ingestion of Soil

Human Health

Dermal Contact

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WYG Environment Source

Dissolved

phase

Identified Pathways

Receptors

Risk Magnitude

Risk Probability

Risk Classification

Inhalation of Land Gases & Vapours

Site Users

Medium

Low Likelihood

Low to Moderate

Offsite Users

Medium

Unlikely

Low

Ground Workers

Medium*

Low Likelihood*

Low to Moderate*

Site Users

Medium

Unlikely

Low

Offsite Users

Medium

Unlikely

Low

Ground Workers

Medium*

Low Likelihood*

Low to Moderate*

Site Users

Medium

Unlikely

Low

Offsite Users

Medium

Unlikely

Low

Ground Workers

Medium*

Low Likelihood*

Low to Moderate*

Dermal Contact and Ingestion

contamination in groundwater

Inhalation of Vapours

* relies on the implementation of appropriate H&S measures to mitigate risks

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WYG Environment 7.0

SUMMARY AND RECOMMENDATIONS

7.1

Summary The site is currently rural and land use is mainly agricultural and mainly comprises open fields with historic farm dwellings, with associated agricultural facilities. It is understood that a housing development is being proposed for the site to be considered as an urban extension to Norwich. A desk-based review of readily available records pertaining to the site has identified that the site has a limited development history that is restricted to the three main farm developments and large residential dwellings within the site. Current sensitive receptors on and around the site include surface waters, the Secondary Aquifer underlying the site and current site users and workers. The site has limited development history and limited evidence of significant potential contamination sources. Nonetheless, considering the agricultural history of the site, and potential for unidentified sources and more diffuse sources of contamination (primarily high nitrate levels associated with fertilizers and slurry), the overall risk rating for the site is currently assessed to be Low to Moderate. Further in-situ information on the near surface ground conditions in key areas would enable the uncertainty associated with this risk assessment to be checked or to be reduced.

7.2

Recommendations Based on the findings of the Desk Based Ground Contamination Assessment, and particularly considering the known and unknown former uses onsite, the following recommendations are proposed: â&#x20AC;˘

It is recommended that an intrusive ground investigation is undertaken to characterise ground conditions at the site to improve the confidence in the assessment of potential risks to human health receptors. It is recommended that particular focus is given to ground conditions within developed areas of the site primarily investigating ground conditions adjacent to farm buildings, particularly fuel/chemical storage/use areas. It is recommended that the environmental samples collected from the site be analytically tested for a wide range of contaminants relating to known, potential and suspected historical site activities including microbiological testing where relevant. Pesticide and herbicide analysis of soil, groundwater and surface water samples should be included around farm land where such has been previously used.

â&#x20AC;˘

It is recommended that a generic quantitative risk assessment be undertaken upon receipt of the ground investigation data to better assess risks posed to identified receptors.

â&#x20AC;˘

It is recommended that consideration of geotechnical issues pertaining to the proposed

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WYG Environment development be given when scoping any future ground investigation works.

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WYG Environment

DRAWINGS

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WYG Environment

APPENDIX A

Report Conditions

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WYG ENVIRONMENT PLANNING TRANSPORT LTD

DESK BASED ASSESSMENT

This report is produced solely for the benefit of Beyond Green and no liability is accepted for any reliance placed on it by any other party unless specifically agreed in writing otherwise. This report refers, within the limitations stated, to the condition of the site at the time of the inspections. No warranty is given as to the possibility of future changes in the condition of the site. This report is based on referenced site inspections, study of readily accessible referenced records, the physical investigation as detailed, information supplied by those parties noted in the text, the evaluation presented, stated consultations with regulators and with local and Statutory Authorities. Some of the opinions are based on unconfirmed data and information and are presented in good faith without exhaustive clarification. The test results that are available can only be regarded as characterisation but likely representative sample assessed against current UK and other text referenced guidelines.

The impact of our assessment on other aspects of the development requires

evaluation by other involved parties. The possibility of the presence of contaminants not revealed by this research and works, perhaps in higher concentrations, elsewhere on the site cannot be discounted. Whilst confident in the findings detailed within this report because there are no exact UK definitions of these matters, being subject to risk analysis, we are unable to give categoric assurances that they will be accepted by Authorities or Funds etc. without question, as such bodies have unpublished, often more stringent objectives.

This report is

prepared and written for the purpose stated in the report and should not be used in a different context without reference to WYG. In time improved practices or amended legislation may necessitate a re-assessment. The report is necessarily limited to those aspects of land contamination specifically reported on and no liability is accepted for any other aspect especially concerning gradual or sudden pollution incidents that may occur.

The

opinions expressed cannot be absolute due to the limitations of time and resources within the context of the agreed brief and the possibility of unrecorded previous use and abuse of the site and adjacent sites. The report concentrates on the site as defined in the report and provides an opinion on surrounding sites. If surrounding migrating pollution or contamination (past or present) exists, this can only practically be better assessed following extensive off site intrusive investigations and monitoring.

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APPENDIX B

Historical Maps

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Norfolk Published 1885 - 1886 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 3 of 15

Norfolk Published 1908 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1919 - 1920 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1929 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1938 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1950 - 1951 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1958 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1979 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norwich Published 1980 Source map scale - 1:10,000 These maps were produced by the Russian military during the Cold War between 1950 and 1997, and cover 103 towns and cities throughout the U.K. The maps are produced at 1:25,000, 1:10,000 and 1:5,000 scale, and show detailed land use, with colour-coded areas for development, green areas, and non-developed areas. Buildings are coloured black and important building uses (such as hospitals, post offices, factories etc.) are numbered, with a numbered key describing their use. They were produced by the Russians for the benefit of navigation, as well as strategic military sites and transport hubs, for use if they were to have invaded the U.K. The detailed information provided indicates that the areas were surveyed using land-based personnel, on the ground, in the cities that are mapped.

Map Name(s) and Date(s)

Russian Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1987 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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10k Raster Mapping Published 2000 Source map scale - 1:10,000 The historical maps shown were produced from the Ordnance Survey`s 1:10,000 colour raster mapping. These maps are derived from Landplan which replaced the old 1:10,000 maps originally published in 1970. The data is highly detailed showing buildings, fences and field boundaries as well as all roads, tracks and paths. Road names are also included together with the relevant road number and classification. Boundary information depiction includes county, unitary authority, district, civil parish and constituency.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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10k Raster Mapping Published 2006 Source map scale - 1:10,000 The historical maps shown were produced from the Ordnance Survey`s 1:10,000 colour raster mapping. These maps are derived from Landplan which replaced the old 1:10,000 maps originally published in 1970. The data is highly detailed showing buildings, fences and field boundaries as well as all roads, tracks and paths. Road names are also included together with the relevant road number and classification. Boundary information depiction includes county, unitary authority, district, civil parish and constituency.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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10k Raster Mapping Published 2011 Source map scale - 1:10,000 The historical maps shown were produced from the Ordnance Survey`s 1:10,000 colour raster mapping. These maps are derived from Landplan which replaced the old 1:10,000 maps originally published in 1970. The data is highly detailed showing buildings, fences and field boundaries as well as all roads, tracks and paths. Road names are also included together with the relevant road number and classification. Boundary information depiction includes county, unitary authority, district, civil parish and constituency.

Map Name(s) and Date(s)

Historical Map - Slice A

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623670, 312630 A 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1887 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1957 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1971 - 1976 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1985 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

Tel: Fax: Web:

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Page 12 of 15

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

Tel: Fax: Web:

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Page 13 of 15

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 14 of 15

Map Name(s) and Date(s)

Historical Map - Slice E

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 627290, 313770 E 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1885 - 1887 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1957 - 1958 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1971 - 1979 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Russian Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1985 - 1987 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 14 of 16

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 15 of 16

Map Name(s) and Date(s)

Historical Map - Slice D

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1882 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1907 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1966 - 1967 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1977 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1990 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Large-Scale National Grid Data Published 1994 Source map scale - 1:2,500 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D11

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1966 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Large-Scale National Grid Data Published 1993 - 1994 Source map scale - 1:2,500 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D10

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 3 of 10

Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1977 Source map scale - 1:2,500 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1985 Source map scale - 1:2,500 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1987 Source map scale - 1:2,500 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Large-Scale National Grid Data Published 1993 Source map scale - 1:2,500 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D9

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1882 - 1884 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1967 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1988 Source map scale - 1:2,500 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Historical Mapping Legends Ordnance Survey County Series and Ordnance Survey Plan 1:2,500

Ordnance Survey Plan, Additional SIMs and Large-Scale National Grid Data 1:2,500 and 1:1,250 Supply of Unpublished Survey Information 1:2,500 and 1:1,250

Historical Mapping & Photography included: Mapping Type Norfolk Norfolk Norfolk Norfolk Ordnance Survey Plan Ordnance Survey Plan Additional SIMs Ordnance Survey Plan Large-Scale National Grid Data

Scale 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500

Date 1882 - 1884 1907 1928 1938 1966 - 1967 1977 - 1983 1988 1990 1994

Pg 2 3 4 5 6 7 8 9 10

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1977 - 1983 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Historical Mapping Legends Ordnance Survey County Series and Ordnance Survey Plan 1:2,500

Ordnance Survey Plan, Additional SIMs and Large-Scale National Grid Data 1:2,500 and Supply of Unpublished Survey Information 1:1,250 1:2,500 and 1:1,250

Historical Mapping & Photography included: Mapping Type Norfolk Norfolk Norfolk Norfolk Ordnance Survey Plan Supply of Unpublished Survey Information Ordnance Survey Plan Additional SIMs Ordnance Survey Plan Additional SIMs Additional SIMs Large-Scale National Grid Data

Scale 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500

Date 1882 - 1884 1907 1928 1938 1966 1974 1977 - 1983 1977 1983 - 1990 1985 1987 1993 - 1994

Pg 2 3 4 5 6 7 8 9 10 11 12 13

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1928 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1938 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D6

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Supply of Unpublished Survey Information Published 1974 Source map scale - 1:2,500 SUSI maps (Supply of Unpublished Survey Information) were produced between 1972 and 1977, mainly for internal use at Ordnance Survey. These were more of a `work-in-progress' plan as they showed updates of individual areas on a map. These maps were unpublished, and they do not represent a single moment in time. They were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1977 - 1978 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1983 - 1990 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D5

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1978 - 1983 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1983 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D2

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Large-Scale National Grid Data Published 1993 - 1994 Source map scale - 1:1,250 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

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Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1971 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1978 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 10 of 14

Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment D1

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625570, 313790 D 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Russian Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice C

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C12

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Historical Mapping Legends Ordnance Survey County Series and Ordnance Survey Plan 1:2,500

Ordnance Survey Plan, Additional SIMs and Large-Scale National Grid Data 1:2,500 and Supply of Unpublished Survey Information 1:1,250 1:2,500 and 1:1,250

Historical Mapping & Photography included: Mapping Type Norfolk Norfolk Ordnance Survey Plan Supply of Unpublished Survey Information Ordnance Survey Plan Additional SIMs Ordnance Survey Plan Ordnance Survey Plan Additional SIMs Additional SIMs Additional SIMs Large-Scale National Grid Data Large-Scale National Grid Data

Scale 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:2,500 1:1,250 1:2,500 1:2,500 1:2,500 1:1,250 1:2,500 1:1,250

Date 1882 1907 1966 1974 1977 - 1978 1977 1982 1983 - 1990 1985 1987 1988 1993 1993

Pg 2 3 4 5 6 7 8 9 10 11 12 13 14

Historical Map - Segment C8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C8

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

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Ordnance Survey Plan Published 1974 - 1982 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Large-Scale National Grid Data Published 1993 Source map scale - 1:1,250 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment C7

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1962 - 1982 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1964 - 1967 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C4

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1964 - 1966 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1982 - 1989 Source map scale - 1:1,250 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

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Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1977 - 1989 Source map scale - 1:1,250 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 12 of 16

Map Name(s) and Date(s)

Historical Map - Segment C3

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 623190, 313960 C 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 16 of 16

Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 3 of 15

Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 4 of 15

Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 6 of 15

Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Russian Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 14 of 15

Map Name(s) and Date(s)

Historical Map - Slice B

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1884 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 2 of 17

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 3 of 17

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 4 of 17

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

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Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1969 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1975 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1978 - 1992 Source map scale - 1:1,250 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 13 of 17

Map Name(s) and Date(s)

Historical Map - Segment B14

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 15 of 17

Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1960 - 1971 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1965 Source map scale - 1:1,250 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Additional SIMs Published 1977 - 1988 Source map scale - 1:1,250 The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Segment B13

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 625210, 312420 B 529.8 100

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 12 of 12

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1907 - 1908 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Norfolk Published 1938 - 1951 Source map scale - 1:10,560 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1971 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Ordnance Survey Plan Published 1975 Source map scale - 1:10,000 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas; these maps were used to update the 1:10,560 maps. The published date given therefore is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. The revision process continued until recently, with new editions appearing every 10 years or so for urban areas.

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 9 of 13

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 11 of 13

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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Page 12 of 13

Map Name(s) and Date(s)

Historical Map - Slice F

Order Details Order Number: Customer Ref: National Grid Reference: Slice: Site Area (Ha): Search Buffer (m):

36047725_1_1 A072885 622650, 315490 F 529.8 500

Site Details Red Hall Bungalow, Beeston, Norwich, NR12 7BL

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13-Sep-2011

Page 13 of 13

WYG Environment

APPENDIX C

Selected Site Photographs

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APPENDIX D Site Boundary and Proposed Development Plan

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M ROA

n e e r g d n S o T y N e E b M P O EL V E D

WALSH A

k r o w in s s e r g o r p

n e e r g d n S o T y N e E b M P O L E V DE

BUXTO

N ROA

NORTH

k r o w in s s e r g o r p

MORRISONS

IXW

OR TH

PARK AND RIDE

WHITE WOMAN LANE

PROPOSED ALIGNMENT OF NDR

SITE BOUNDARY

AD RO AM

’S L

RT H

WA L

CHURCH LANE

KEY

TESCO

LAND IN 3RD PARTY OWNERSHIPS WHICH COULD COME FORWARD AT A LATER STAGE EITHER INDEPENDENTLY OR WITH BEYOND GREEN

Beyond Green Developments North Sprowston & Old Catton

Appendix 11.2: Land Research Associates Agricultural Land Baseline Study

ES Volume 2: Technical Appendices

AGRICULTURAL USE & QUALITY AND SOIL RESOURCES OF LAND NORTH-EAST OF NORWICH

Report 733/1 15th March, 2012

AGRICULTURAL USE & QUALITY AND SOIL RESOURCES OF LAND NORTH-EAST OF NORWICH

M J Reeve FISoilSci, MBIAC

Report 733/1 Land Research Associates Ltd Lockington Hall, Lockington, Derby DE74 2RH

15th March, 2012

SUMMARY A study and survey has been undertaken of 232 ha of level to gently sloping land on the north-east edge of Norwich, land that is being proposed for residential development. Over three-quarters of the application area (179 ha) comprises agricultural fields, 85% of which are in arable use growing crops of wheat, barley, sugar beet, oilseed rape, potatoes and parsnips. Red House Farm Livery Stables uses grassland paddocks on Beeston Lane and there is also grassland around Beeston St Andrew Hall, beside the Wroxham Road park-and-ride and a grass paddock adjacent to Oak Lodge Cottages on North Walsham Road. Almost all of the land has natural soils formed in sandy and silty glacial deposits. These form grade 2 land where the soils are deep but sub-grade 3a or 3b land where the soils are moderately shallow or shallow over sand. There is also a small area of made ground beside the Wroxham Road park-and-ride.

Land Research Associates

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

1.0

Introduction

1.1

This report provides information on the soils, agricultural quality and use of 232 ha of land on the north-east edge of Norwich, 179 ha of which comprises agricultural fields. It is proposed to use the land for housing, leisure and employment. The report is based on a soil and agricultural desk study, and surveys in October 2011 and March 2012. SITE ENVIRONMENT

1.2

The land extends from St Faith’s Road in the west, along the urban edge of Old Catton to Sprowston in the east. The A1151 Wroxham Road and the park-andride on it form the eastern boundary and the land is crossed by the B1150 North Walsham Road and by Buxton Road. In the east the northern boundary extends beyond Beeston St Andrew Hall and Red Hall Farm while in the west it is formed by field boundaries and is only the width of a field either side of Buxton Road.

1.3

The topography is level to very gently sloping with 2° the maximum slope recorded. AGRICULTURAL USE

1.4

Over three-quarters of the application area (179 ha) comprises agricultural fields, 85% of which is in arable use growing crops of wheat, barley, sugar beet, oilseed rape, potatoes and parsnips. Red House Farm Livery Stables uses grassland paddocks on Beeston Lane and there is also grassland around Beeston St Andrew Hall, beside the Wroxham Road park-and-ride and a grass paddock adjacent to Oak Lodge Cottages on Walsham Road. The agricultural use is shown on Map 1.

Very gently sloping terrain typical of the survey area with a crop of barley occupying a field beside Church Lane

1.5

60% of the agricultural land is part of the 400 ha Beeston Estate and farmed in-

Land Research Associates

Report 733/1 – Soils and agricultural use & quality of land north-east of Norwich

hand together with rented land beside Old Catton in separate ownerships (Map 2). The remainder of the application area, 35 ha of Norfolk County Council land off Church Lane Sprowston, is tenanted by an agricultural business in Hoveton. PUBLISHED INFORMATION 1.6

The land appears on a reconnaissance soil map published at 1:250,000 scale1 and 1:50,000 geological information is available online. The drift geology of Happisburgh Glacigenic Formation and Lowestoft Formation sands and gravels gives rise to sandy and loamy soils of the Newport 3 soil association and predominantly loamy soils of the Wick 2 association, with shallow soils over gravel in places.

1.7

Reconnaissance agricultural land classification (ALC) mapping carried out in the 1970s shows the agricultural land of the study area as grade 3 and grade 2. No post-1988 ALC mapping using the current classification has been previously undertaken across the study area although surveys were made of land adjacent or close to it in the early 1990s. Land now occupied by the Wroxham Road park-and-ride was found to be a mixture of grade2, sub-grade 3a and sub-grade 3b. 13 ha of land on the opposite side of the road, now partly occupied by the Tesco store, were mapped as grade 2. 22 ha of land on the southern edge of Spixworth was mapped as sub-grade 3a and subgrade 3b and almost 50 ha of land around Bunkers Hill between Quaker Lane and Church Lane was found to be a mixture of grades 1 and 2 and subgrade 3a agricultural quality.

Findlay, D.C. et al. (1984). Soils and their Use in South West England. Soil Survey of England and Wales bulletin No. 14.

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Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

2.0

Soils

2.1

The Defra Soil Strategy2 points out that soils deliver a range of vital functions for human activities including production of food and fibre, support for ecosystems and habitats, and environmental services that play a vital role in the global carbon cycle, stabilising and degrading contaminants and providing clean water. One of the strategyâ&#x20AC;&#x2122;s objectives is to ensure that soil functions (soil ecosystem services) are fully valued in the planning process.

2.2

A detailed soil resource and agricultural quality survey was carried out in October 2011 and March 2012 to the specifications favoured by Defra and the current statutory consultees in English Nature. The survey was based on observations at alternate intersects of a 100 m grid, giving almost 100 sampling observations. During the survey soils were examined by a combination of pits and augerings to a maximum depth of 1 m. A map (Map 5), showing the locations of the sampling points, is in an appendix to this report, as is a log of survey observations.

2.3

Most soils across the application area at least moderately freely draining. Within the very gently rolling topography the more level land tends to have deep soils while low rises and ridges tend to have sandy substrates within 0.6 m of the surface. Deep loamy soils

2.4

Over a large proportion of the area soils are deep and relatively permeable. Topsoil and upper subsoil textures are most commonly sandy silt loam but some are of sandy loam or, occasionally, of medium clay loam. Topsoils have generally been cultivated to a depth of about 35 cm and contain only a few (<5%) flint and quartzite stones. Upper subsoils can be brown and unmottled but reddish mottles are usually present by a depth of 50 cm, sometimes accompanied by pale mottling. Below 60-80 cm depth sandy and very permeable layers are encountered in some places but, more frequently, there is change to more clayey and more compact subsoil of lower permeability, sometimes sufficiently compact to be slowly permeable and grey-mottled. Even where there is no slowly permeable layer within 1 m depth, infiltration

Safeguarding our Soils: a Strategy for England (Defra, 2009)

Land Research Associates

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

testing in trial pits indicates that substrate permeability at a depth of 2m is low. A typical profile of a deep sandy silt loam type is described below from TG 25056 13940 (near observation 6, Map 5): 0-32 cm

Dark yellowish brown (10YR 3/4) stoneless sandy silt loam; moderately developed coarse subangular blocky structure; friable; 3% fine, medium and coarse macropores; common very fine fibrous roots; abrupt smooth boundary to:

32-54 cm

Brown (7.5YR 4/4) stoneless sandy silt loam; weakly developed coarse subangular blocky structure; friable; 5% fine, medium and coarse macropores; a few very fine fibrous roots; clear smooth boundary to:

54-63 cm

Brown (7.5YR 4/4) stoneless sandy silt loam with many coarse brown (10YR 5/4) and a few fine strong brown (7.5 YR 5/6) distinct mottles; weakly developed coarse subangular blocky structure; friable; 3% fine to coarse macropores; a few very fine fibrous roots; clear smooth boundary to:

63-100 cm

Brown (7.5YR 5/4) sandy silt loam to medium clay loam with common to many fine reddish brown (5YR 5/6) distinct mottles, in places forming very coarse ferrimanganiferous stains along breakages; stoneless except for a few large flints at around 95 cm depth; very weak very coarse angular blocky structure; firm; 5% fine, medium and coarse macropores; a few very fine fibrous roots.

Shallower soils over sand 2.5

Low rises and ridges tend to have sandy substrates within 1 m of the surface and, locally, can have up to 20% stones at the surface. Topsoils are sandy loams cultivated to an average depth of 35 cm. Subsoils are of similar texture and pass to sand or loamy sand with 60 cm of the surface. Two profiles have been described, one of moderate depth over sand from beside observation 76 (Map 5) and one from just outside the survey area near Red Hall Farm, which has sand immediately below a loamy sand topsoil.

2.6

At TG 24997 12997 (beside survey observation 76): 0-35 cm

Dark brown (7.5YR 3/4) medium sandy loam; 1% small subrounded quartzite pebbles and subangular flints; weakly developed coarse subangular blocky structure below 15 cm depth but strongly developed fine and medium subangular blocky structure in upper part; friable; 0.1% very fine macropores; many very fine fibrous barley roots in upper 15 cm but few below; abrupt smooth boundary to:

35-47 cm

Brown (7.5YR 4/4) medium sandy silt loam with common diffuse fine and medium yellowish red (5YR 4/6) mottles; 1% small subrounded quartzite pebbles and subangular flints; weakly developed coarse subangular blocky structure; friable; 1% fine and medium macropores fibrous; a few very fine fibrous roots; abrupt smooth boundary to:

47-57 cm

Brown (7.5YR 4/4) medium sandy loam with common diffuse fine and medium yellowish red (5YR 5/6) mottles; 5% small subrounded quartzite pebbles and subangular flints; very weakly developed coarse subangular blocky structure; very friable; 1% fine and medium macropores fibrous; a few very fine fibrous roots; abrupt smooth boundary to:

57-100 cm

Variegated/mottled light yellowish brown (2.5Y 6/4) and yellowish red (5YR 4/6) medium sand with 2% small quartzite and flint stones; structureless, single grain; loose; no roots.

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Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

2.7

2.8

At TG 24730 13870 (west of Red Hall Farm): 0-33 cm

Dark brown (7.5YR 3/4) loamy medium sand; 1% medium subrounded quartzite pebbles and subangular flints; weakly developed medium and coarse subangular blocky structure; very friable; 2% fine, medium and coarse macropores; a few very fine fibrous roots and medium woody roots from nearby hedge; clear wavy boundary to:

33-100 cm

Yellowish brown (10YR 5/8) stoneless medium sand with common to many strong brown (7.5 YR 5/6) coarse distinct mottles; a few linear topsoil inclusions above 40 cm; structureless, single grain.

The distribution of the soil resources is shown on Map 3.

The main soils of the site (in each instance the red marker on the scale indicates 50 cm depth) Left: deep sandy silt loam soil with a 32 cm thick cultivated topsoil, an upper subsoil extending to 63 cm depth with rusty and pale mottles in the lower part, and a red-mottled more compact subsoil below. Right: a dark, 34 cm thick, cultivated topsoil directly over yellowish sand

Land Research Associates

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

3.0

Agricultural Quality

3.1

To assist in assessing land quality, the Ministry of Agriculture, Fisheries and Food (MAFF) developed a method for classifying agricultural land by grade according to the extent to which physical or chemical characteristics impose long-term limitations on agricultural use for food production. The MAFF Agricultural Land Classification (ALC) system classifies land into five grades numbered 1 to 5, with grade 3 divided into two sub-grades (3a and 3b). The system was devised and introduced in the 1960s and revised in 1988.

3.2

The agricultural climate is an important factor in assessing the agricultural quality of land and has been calculated using the Climatological Data for 3 Agricultural Land Classification . The relevant site data for an average

elevation of 80 m is given below.

3.3

• Average annual rainfall:

644 mm

• January-June accumulated temperature >0°C

1391 day°

• Field capacity period (when the soils are fully replete with water)

124 days early Dec-early April

• Summer moisture deficits for:

wheat: 126 mm potatoes: 111 mm

In common with much of eastern England this is a relatively dry area with only a 4 month field capacity period.

3.4

The survey described in the previous section was used in conjunction with the agroclimatic data above to classify the site using the revised guidelines for agricultural land classification issued in 1988 by the Ministry of Agriculture, 4 Fisheries and Food .

SURVEY RESULTS 3.5

The agricultural quality in the survey area is determined mainly by the depth of soil over sand, as these factors influence the amount of water retained in summer for plant growth and, consequently, the risk of crop yields being reduced by drought.

Climatological Data for Agricultural Land Classification. Meteorological Office, 1989 Agricultural Land Classification for England and Wales: Guidelines and Criteria for Grading the Quality of Agricultural Land. MAFF, 1988.

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Report 733/1 – Soils and agricultural use & quality of land north-east of Norwich

Grade 2 3.6

The grade 2 land is associated with deep loamy and silty soils as described in section 2. The most common type has sandy silt loam, sandy loam or, occasionally, medium clay loam horizons to at least 60 cm depth. These are sometimes over sandier substrates to form a freely draining soil profile (wetness class I), but can also be over compact sandy clay loam or heavy clay loam layers of low permeability that slightly impede drainage (wetness class II).

3.7

All are relatively water retentive and are capable of sustaining crop growth during all but the most lengthy dry periods. The grade 2 delineations include isolated occurrences of grade 1 soil where sandy silt loam layers extend over most of the upper 1 m of soil profile. The example profile described in detail on page 5 is marginal to grade 1. Sub-grade 3a

3.8

Subgrade 3a land occurs on low rises and ridges where sandy substrates are within 60 cm of the surface and overlying layers are of normally of sandy loam. The soil described in section 2 is typical. The soils are freely draining (wetness class I) but retain limited reserves of moisture to sustain productive crop growth during dry weather. Sub-grade 3b

3.9

Subgrade 3b land is associated with the subgrade 3a land, often forming a core to subgrade 3a delineations where soils are shallowest. There is seldom much more than sandy loam or loamy sand topsoil over the sandy substrate, as in the soil described in detail and illustrated on page 6. The soils are freely draining (wetness class I) but are severely drought-prone during dry weather.

3.10

There is also a small area of sub-grade 3b land alongside the Sprowston Park and Ride, where excavated soils have been spread over existing ground. Sandy loam or sandy clay loam topsoils are often over sandy material but compaction during earthmoving has resulted in impenetrable layers and localised surface ponding. Other land

3.11

There are 52.6 ha of the site in non-agricultural uses, much of it in playing fields beside North Wlasham Road and estate woodland. The rest is occupied by Red Hall Farm, Beeston St Andrew Hall and associated residential properties.

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Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

Grade areas 3.12

The boundaries between the different grades of land are shown on Map 2 and the areas occupied by each are shown below. Table 1. Areas within the survey area occupied by the different land grades Grade/sub-grade

Area (ha)

% of agricultural fields

% of application area

109.7

Sub-grade 3a

66.1

Sub-grade 3b

3.2

Grade 2

Other land Total

Land Research Associates

52.6 231.6

23 100

100

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

4.0

Soil resources and their use

4.1

An objective of the Defra Soil Strategy is to ensure that the construction industry and planning authorities take sufficient account of the need to protect soil resources, and ensure soils are able to fulfil as many as possible of their functions. An Environment Agency strategy Soil a Precious Resource: Our strategy for protecting, managing and restoring soil (Environment Agency, 2007) has complementary aims. The soil across the site has been described in section 2 and the distribution of the soil resources is shown on Map 3. Topsoils

4.2

The topsoil is mainly a sandy loam or sandy silt loam that is about 35 cm thick and rarely very stony. It would provide an excellent topsoil resource for gardens, allotments and landscaping areas. Subsoil

4.3

Although subsoils below a depth of 60-80 cm can be of sand or of compact slowly permeable material, the subsoil layer above is a loamy and permeable medium that provides good downwards transmission of excess rainfall and an excellent medium for plant roots to extend into. It should provide a good base layer for any areas to be topsoiled during development. Soil handling

4.4

Areas not being built over (e.g. environmental buffers and landscape area) should not be trafficked by construction vehicles as this will render the soils impermeable, preventing percolation of rainfall beyond the base of the topsoil, which will quickly become saturated.

4.5

Stripped topsoil should be stored in separate resource bunds no more than 3 m high, and kept grassed and free from construction traffic until required for re-use.

4.6

The Construction Code of Practice for Sustainable Use of Soils on Construction Sites (Defra 2009) provides guidance on good practice in soil handling.

Land Research Associates

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

5.0

Conclusions

5.1

The survey has shown that over three-quarters of the application area (179 ha) comprises agricultural fields, 85% of which are in arable use growing crops of wheat, barley, sugar beet, oilseed rape, potatoes and parsnips. Red House Farm Livery Stables uses grassland paddocks on Beeston Lane and there is also grassland around Beeston St Andrew Hall, beside the Wroxham Road park and ride and a grass paddock adjacent to Oak Lodge Cottages on Walsham Road.

5.2

Almost all of the land has natural soils formed in sandy and silty glacial deposits. These form grade 2 land where the soils are deep but sub-grade 3a or 3b land where the soils are moderately shallow or shallow over sand. There is also a small area of made ground beside the Wroxham Road Park and Ride.

5.3

If the site is developed, the loamy topsoils would provide an excellent resource for re-use in gardens, allotments and landscape areas, supported by an uncompacted layer of loamy subsoil. Elsewhere across the site, soils not to be sealed by paving or buildings should be protected from mixing and compaction, in order to maintain their important environmental functions.

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Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

APPENDIX LOCATION OF OBSERVATIONS

Land Research Associates

Report 733/1 â&#x20AC;&#x201C; Soils and agricultural use & quality of land north-east of Norwich

Land north-east of Norwich: ALC and soil resources survey (September 2011) - Details of observations at each sampling point Obs no

Topsoil Depth Texture

Stones

Upper subsoil Depth Texture

Mottling

1 2 3

(cm) 0-36 0-35 0-35

(%) 1 10 2

(cm) 36-50 35-95 35-50

LMS LMS MSL

o o o

4 5 6

not accessed 0-38 MSL 0-38 SZL

2 0

38-62 38-70

LMS MCL

o o

0-38

SZL

38-55

SZL

8 9

0-40 0-21

MSL SZL/MCL

1 1

40-65 21-40

MSL SZL

o o

0-22

SZL

0-40

MSL

22-55 55-75 40-50

SZL/MCL SCL SZL

o xx xx

0-36

MSL

367-55

SZL

13 14

0-30 0-35

MCL SZL

2 2

30-70 35-50

SCL SZL

o xx

15 16

0-35 0-20

MSL SZL

10 1

25-50+ 20-50

MS SZL

o o

0-38

FSL

18 19

0-38 0-32

MSL SZL

1 1

20 21 22 23

0-40 0-35 0-39 0-36

MSL SZL MSL MSL/SZL

3 1 3 1

38-45 45-55 38-58 32-45 45-75 40-80 35-70 39-50 36-55

SZL MSL SZL SZL SZL MSL FSZL MSL SZL

x x xx o xx o x xx xx

0-33

SZL

33-72

SZL

MSL MSL MSL

Lower subsoil Depth Texture

Mottling

Slope (°°)

Wetness Class

Agricultural quality Grade Main limitation

(cm) 50-75+ 95+ 50-100 100-110

MS MS LFS LMS

o o xx xx

½ 2 1

I I I

3a 3a 2

D D D

62-100 70-85 85-100 55-65 65-105 65-105+ 40-60 60-100 75-85 85-100 50-65 65+ 55-65 65-105 At 70 50-75 75-105

HCL SCL HCL/SCL SZL MCL+SCL MSL/SZL MSL MS LMS SCL stony MCL stopped MSL SCL Brick or tile compactMCL compactSCL

xxx xx xx(x)

0 1

II II

2 1/2

D D

x o xx xx xx xx

2 2

I I

2 2/3a

D D

xx xxx

½ ½

I II

(2) 2

Disturbed D

50-70 70-100 55-85 85-110 58-110 75-85 85-105 80+ 70-105 50+ 55-75 75+ 72-100

MCL SCL LMS MS MS LMS compactSCL stony FSZL MS LFS/LMS stopped stony MSL

½ ½

I II

3b 2

D D

½ 1

I I

3a 2

D D

o xx

1 ½ 0 ½

I I I I

2 1 3a 3a

D D D

xx(x) xx(x) xx xxx o o o xx xxx

Obs no

Topsoil Depth Texture

Stones

Upper subsoil Depth Texture

Mottling

(cm) 0-32

SZL

(%) 1

1 <1 2 2

(cm) 32-55 55-70 31-63 33-55 35-50 50-65 38-75 35-75 39-68 37-55

SZL SZL MSL MSL MSL (/SZL) MSL(/SZL) SZL SZL FSZL SZL

o x o o o xx o x xx xx

26 27 28

0-31 0-33 0-35

MSL MSL MSL

3 3 2

29 30 31 32

0-38 0-35 0-39 0-37

SZL SZL MSL/SZL SZL

0-35

SZL

35-50

SZL

0-31

SZL

0-35

SZL

0-32

MSL

31-46 46-55 35-50 50-70 32-55

SZL LMS SZL/ZL SZL MSL

o x o xx o

0-33

MSL

33-70

MSL+FSL

0-34

SZL

34-57

SZL

39 40 41

0-34 0-38 0-35

SZL MSL SZL

2 8 <1

34-48 38-70 35-60

SZL MSL SZL

o o x

42 43

0-36 0-40

MSL MSL/SZL

3 3

36-55 40-60

FSZL MSL/SZL

xxx xx

0-36

MSL/SZL

36-50

SZL

0-36

SZL

36-52

SZL

0-35

SZL

0-35

SZL

0-35

SZL

35-45 45-55 35-45 45-65 35-60

SZL MSL SZL SZL+MSL SZL

xx xx xx xx x

Lower subsoil Depth Texture

Mottling

Slope (°°)

Wetness Class

Agricultural quality Grade Main limitation

(cm) 70-80 80-100 63-100 55-100 65-100

stony LMS stony SCL MS MS MSL/SCL

xx xx xx xx xx

0 ½ 1

I I I-II

3a 3a 2

D D D

75-100 75+ 68-100 55-70 70-105 50-68 68-100 55-70 70-100 70-100

LMS/MS stopped LMS MSL LMS+SCL SZL stony LMS MS compactSCL HCL/SCL

1 ½ 0 ½

I I I I

2 (2) 2 2

D D D D

55-68 68-100 70-80 80-110 57-72 72-100 48-105 70+ 60-65 65+ 55+ 60-90 90+ 50-70 70+ 52-75 75-100 55-70 70-100 65-75 75-90+ 60-70 70+

MS+MSL MS+stonyMS LMS+MSL MS SCL SCL/HCL SCL stony SZL stopped stopped LFS stopped MSL stony MS LMS-LFS C stony MS MS stony LMS stony MS stony SCL stopped

½ 1 ½

II I I

2 2/3a (2)

D D D

½ ½

I I

(2) 2

D D

2/3a

xx xxx xx x xx xx xx(x)

2/3a

xx xx xx xx xx xxx xxx xxx xx xx xx xx xx xx xx

Obs no

Topsoil Depth Texture

Stones

Upper subsoil Depth Texture

Mottling

(cm) 0-34

SZL

(%) 3

(cm) 34-60

MCL/SZL

0-35

SZL

35-62

SZL

51 52

0-40 0-35

MSL SZL

20 <1

40+ 35-50

v. stony MSL SZL

o x

0-37

MSL/SZL

37-60

MCL

0-35

MSL

35-42

MSL

55 56

0-35 0-30

MSL MSL/SZL

5 7

35-50 30-35

MSL/LMS MSL

o o

0-38

MSL

38-65

MSL

0-28

SZL

28-45

SZL/MSL

0-39

MSL/SZL

0-35

SCL

39-50 50-75 35-50

SZL FSZL MCL

x xx o

0-37

MSL

37-50

MSL

0-35

SZL

35-50

SZL/MCL

63 64

0-40 0-38

MSL MSL

2 4

40-60 38-58

MSL MSL

xx o

0-36

MSL

36-48

MSL

0-35

MSL

35-50

MSL

67 68

0-38 0-26

MSL MSL

3 2

0-35

MSL/SZL

0-38

MSL

38-50 26-40 40-60 35-55 55-65 38-45

MSL/SZL MSL MSL SZL MSL MSL

o x xx x xx o

Lower subsoil Depth Texture

Mottling

Slope (°°)

Wetness Class

Agricultural quality Grade Main limitation

(cm) 60-75 75-100 62-88 88-100

HCL SCL (stony) LMS+MS compact MSL

xxx xx(x) xx xxx

50-70 70-105 60-80 80-105 42-65 65-105 50-75+ 35-50 50-100 65-80 80+ 45-55 55-100 75-85 85+ 50-70 70-105 50-65 65-105 50-75 75-100 60-100 58-65 65-100 48-65 65-75+ 50-70 70+ 50-100 60-80 80+ 65-75 75+ 45-55 55-80+

MSL(+LMS) SCL LMS SCL MS SCL MS LMS MS LMS+MSL stopped LMS MS MSL stopped SCL SCL LMS SCL MCL SCL LMS LMS MS LMS/MSL stony MS MSL+SCL stopped SCL SCL stopped (dry) MS/LMS stopped stony LMS MS

xx xxx x xxx xx xxx x x xx xx

0 ½

I II

3b 2

D D

0 0

I I

3a 3a

D D

(2)

0 0

I I

3a 3a

D D

xx xxx

1 ½

II II

2 2

D D

2/3a

o x

xx xx xx xx xxx x x xx(x) xxx xx xx xx x x xx

Obs no

Topsoil Depth Texture

Stones

Upper subsoil Depth Texture

Mottling

(cm) 0-37

SZL

(%) <1 2 2

(cm) 37-50 50-70 38-70 38-50

SZL SZL FSZL MSL

o xx xx o

72 73

0-38 0-38

SZL MSL

0-36

MSL

36-47

MSL

0-39

MSL

39-62

MSL

0-38

MSL

38-50

MSL

77 78

0-36 0-38

SZL SZL

<1 <1

36-55 38-70

SZL SZL

xx x

0-40

MSL

40-68

SZL

0-35

MSL

35-45

SZL

0-37

MCL

37-55

MCL

0-36

MSL

0-37

MSL

36-50 50-65 37-70

SZL MSL SZL

x x o

0-36

SZL

85 86

0-28 0-38

SZL MSL

1 1

36-48 48-60 28-60 38-60

SZL MSL SZL SZL

o x o o

87 88

0-35 0-35

MCL MSL

2 3

89 90

0-35 0-33

MSL MSL

5 <1

35-90 35-50 50-58 35-70 33-65

MCL MSL/SZL MSL MSL MSL/SZL

o o o o o

0-38

MSL

38-68

MSL/SZL

0-20

MSL

20-30

MSL/LMS

Lower subsoil Depth Texture (cm) 70-90 90-105 70-105 50-60 60-100 47-60 60-100 62-75 75-105 50-70 70+ 55-105 70-75 75+ 68-78 78+ 45-60 60-105 55-75 75-105 65-75 75+ 70-90 90-105 60-70 70+ 60-105 60-80 80-100 90-105 58-65 65-100 70-100 65-75 75-105 68-75 75-100 30-40 40+

stony lMS SCL SCL LMS MS LMS MS MSL LMS LMS MS SCL LMS stopped LMS stopped MSL SCL(+HCL) MCL SCL LMS stopped MSL LMS SCL stopped SZL (+stones) SZL MS MCL LMS MS MS LMS MS+MSL lumps LMS MS stony MS stopped

Slope (°°)

Wetness Class

Agricultural quality Grade Main limitation

I-II

1 ½

Ii I

2 3a

D D

xx o

½ ½

I I

2 2

D D

xx xxx xx xx(x) x

1 ½

I-II I

1 2

½ 0

I I

2 2/3a

D D

0 0

I I

2 2

D D

III

disturbed

Mottling

xx xxx xxx x o xx xx xx xx o

x xx xxx xxx xx xx xx(x) o o o o o o x o

Obs no

93 94

Topsoil Depth Texture (cm) 0-20 20-28 0-47

MSL top/sub mix MSL

Stones

Upper subsoil Depth Texture

Mottling

(%) 5

(cm) 28-38

MSL

47-75

SZL

Lower subsoil Depth Texture (cm) 38-80 80+ 75+

MS buried topsoil stopped

Mottling

Slope (°°)

Wetness Class

Agricultural quality Grade Main limitation

disturbed

Key to table Mottle intensity: o unmottled x few to common rusty root mottles (topsoils) or a few ochreous mottles (subsoils) xx common to many ochreous mottles and/or dull structure faces xxx common to many greyish or pale mottles (gleyed horizon) xxxx dominantly grey, often with some ochreous mottles (gleyed horizon)

a depth underlined (e.g. 50) indicates the top of a slowly permeable layer

Texture: C - clay ZC - silty clay SC - sandy clay CL - clay loam (H-heavy, M-medium) ZCL - silty clay loam (H-heavy, M-medium) SCL - sandy clay loam SZL - sandy silt loam (F-fine, M-medium, C-coarse) SL - sandy loam (F-fine, M-medium, C-coarse) LS - loamy sand (F-fine, M-medium, C-coarse) S - sand (F-fine, M-medium, C-coarse) P - peat (H-humified, SF-semi-fibrous, F-fibrous) LP - loamy peat; PL - peaty loam

Limitations: W - wetness/workability D - droughtiness De - depth St – stoniness Sl – slope F - flooding T – topography/microrelief Texture suffixes & prefixes: ca – calcareous: x-extremely, v-very, sl-slightly gy – grey, dk – dark, r – reddish; st - stony

Beyond Green Developments North Sprowston & Old Catton

Appendix 12.1: Flood Risk Assessment

ES Volume 2: Technical Appendices

Beyond Green Developments

North Sprowston & Old Catton Flood Risk Assessment

Project Ref: 24109/005 Doc Ref: R003/Rev03 September 2012 Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading Berkshire RG1 8DN T: 0118 9500761 F: 0118 9597498 E: reading@peterbrett.com

North Sprowston & Old Catton Flood Risk Assessment

We print on 100% recycled paper from sustainable suppliers accredited to ISO 14001.

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Contents 1

Introduction ............................................................................................................................... 1

Proposed Development Site .................................................................................................... 1 2.1 Site Location and Plan ................................................................................................... 1 2.2 Development Proposals ................................................................................................. 1

Flood Risk Assessment ........................................................................................................... 2 3.1 Strategic Flood Risk Assessment .................................................................................. 2 3.2 Flood Zone ..................................................................................................................... 2 3.3 Vulnerability ................................................................................................................... 3 3.4 Groundwater .................................................................................................................. 4 3.5 Flood Map for Surface Water ......................................................................................... 5 3.6 Climate Change ............................................................................................................. 6 3.7 Impact of the Development on Site Permeability ........................................................... 6 3.8 The Sequential Test and Exception Test ....................................................................... 7 3.9 Managing Surface Water and SuDS.............................................................................. 7

Summary ................................................................................................................................. 12

Appendices Appendix 1 – Site Location Plan Appendix 2 – Proposed Site Layout Appendix 3 – Trial Pit and Infiltration Testing Location Plan Appendix 4 – Deep Bore Soakaway Feasibility Note, 24105/005 Appendix 5 – Permeable Paving MicroDrainage Calculations Appendix 6 – Typical Catchment Surface Water Drainage Layout and MicroDrainage Calculations Appendix 7 – Proposed SuDS Plan

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Introduction

Peter Brett Associates LLP (PBA) has been commissioned by Beyond Green Developments Ltd. to prepare a Flood Risk Assessment (FRA) to support its proposals for development at North Sprowston & Old Catton (NS&OC). A site location plan is contained in Appendix 1. PBA has many years’ experience in, amongst other areas, the assessment of flood risk, hydrology, flood defence and river engineering. This FRA has been prepared in accordance with relevant national, regional and local planning policy and statutory authority guidance as follows: 

National policy regarding flood risk as contained within National Planning Policy Framework (NPPF), dated March 2012, and the accompanying Technical Guidance to the NPPF, also dated March 2012.



Partnership of Norfolk District Councils Strategic Flood Risk Assessment, Subsidiary Report C, Broadland District Council Area, December 2007.



Broadland District Local Plan (Replacement), Adopted May 2006



Joint Core Strategy for Broadland, Norwich and South Norfolk, adopted 24 March 2011

Broadland District Council (BDC) has the final decision with regard any planning application as the Local Planning Authority (LPA). The Environment Agency (EA) is a designated consultee under Statutory Instrument 2006 No. 2375 The Town and Country Planning (General Development Procedure) (Amendment) (No. 2) (England) Order 2006. Whilst the LPA has the final decision on planning applications they are required to consult the EA in flood risk areas for advice. This report summaries the risk from all forms of flooding that may affect the development.

Proposed Development Site

2.1

Site Location and Plan

The NS&OC site is a located to the north of Norwich, adjacent to the existing residential suburbs of Sprowston and Catton and to the east of Norwich Airport. The site covers an area of approximately 207ha and has been predominately used as agricultural pasture. Red Hall Farm, Norwich Rugby Football Club, and the Norwich School playing fields located to the centre and north of the development site will remain. A site location plan is contained in Appendix 1.

2.2

Development Proposals

The proposed development will provide a residential led (approximately 3500 units) mixed use scheme, including schools and commercial and retail space, with a strong emphasis on the creation of a sustainable community. A plan showing the proposed site layout is contained in Appendix 2.

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Flood Risk Assessment

The NPPF requires a site specific FRA to be carried out to support the planning application. The degree of detail that an FRA should include depends upon the scale and potential impact of the proposed development. The FRA should consider the risk to the development from all sources of flooding and the off-site impacts on the downstream flood risk to others. An assessment of climate change should also be included.

3.1

Strategic Flood Risk Assessment

LPAs should prepare Strategic Flood Risk Assessments (SRFA) in consultation with the EA. This is then used by the LPAs to inform sustainability appraisals to the Local Development Documents (LDDs). The SFRA is initially used to refine information on areas that may flood, taking into account all sources of flooding and the impacts of climate change, in addition to the information depicted on the EA Flood Zone Mapping. The Partnership of North Norwich District Councils, of which BDC is a member, has prepared an SFRA which was issued in December 2007. This FRA has been compiled taking account of the information therein.

3.2

Flood Zone

The initial phase of identifying whether a site is potentially at risk of flooding is to consult the EAâ&#x20AC;&#x2122;s Flood Maps, available on the EAâ&#x20AC;&#x2122;s website.

Figure 1: Extract of Flood Map from EA website

This mapping shows the site to lie in Flood Zone 1; land assessed as having a less than 1 in 1,000 annual probability of river or sea flooding (<0.1%).

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Zone 1 – Low probability Definition This zone comprises land assessed as having a less than 1 in 1,000 annual probability of river or sea flooding (<0.1%) Appropriate Uses All uses of land are appropriate in this zone Flood Risk Assessment Requirements For development proposals on sites comprising one hectare or above the vulnerability to flooding from other sources as well as from river and sea flooding, and the potential to increase flood risk elsewhere through the addition of hard surfaces and the effect of the new development on surface water run-off, should be incorporated in a Flood Risk Assessment. This need only be brief unless the factors above or other local considerations require particular attention. Policy Aims In this zone, developers and local authorities should seek opportunities to reduce the overall level of flood risk in the area and beyond through the layout and form of the development, and the appropriate application of sustainable drainage systems. NPPF Technical Guidance Table 1: Flood Zones

3.3

Vulnerability

The NPPF follows a sequential risk based approach in determining the suitability of land for development in flood risk areas, with the intention of steering all new development to the lowest flood risk areas. NPPF Table 2, below, taken from the Technical Guidance to the NPPF confirms the ‘flood risk vulnerability classification’ of a site depending on the proposed usage. This classification is subsequently applied to NPPF Table 3, below, to determine whether: 

the proposed development is suitable for the flood zone in which it is located, and



whether an Exception Test is required for the proposed development.

In this case the proposed development is for a residential led (approximately 3500 units) mixed use scheme, including schools and commercial and retail space, with a strong emphasis on the creation of a sustainable community. More Vulnerable

Buildings used for dwelling houses, student halls of residence, drinking establishments, nightclubs and hotels. Non-residential uses for health services, nurseries and educational establishments.

Less Vulnerable

Buildings used for shops, financial, professional and other services, restaurants and cafes, hot food takeaway, offices, general industry, storage and distribution, non-residential institutions not included in ‘more vulnerable’, and assembly and leisure.

Water Amenity open space, nature conservation and biodiversity, outdoor sports and recreation and Compatible essential facilities such as changing rooms. NPPF Technical Guidance Table 2: Flood Risk Vulnerability Classification Flood Risk Vulnerability Classification

Essential Infrastructure

Water Compatible

Highly Vulnerable

More Vulnerable

Less Vulnerable

Zone 1



NPPF Technical Guidance Table 3: Flood Risk Vulnerability and Flood Zone ‘Compatibility’

Review of NPPF Tables 2 and 3, above, shows that development classed as ‘more vulnerable’, ‘less vulnerable’ and ‘water compatible’ is appropriate for Flood Zone 1.

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3.4

Groundwater

The EAâ&#x20AC;&#x2122;s Groundwater Source Protection Zone Maps, available on the EAâ&#x20AC;&#x2122;s website, indicate the risk of contamination to groundwater sources such as wells, boreholes and springs used for public drinking water supply. The shape and size of a zone depends on the ground conditions, how the groundwater is abstracted, and other environmental factors. The mapping below confirms that the site lies outside Groundwater Source Protection Zone 3 (Total Catchment) (Figure 2) but lies over a major aquifer with a high groundwater vulnerability (Figure 3). This means that while the groundwater (aquifer) directly below the site is not extracted for potable water, the ground conditions above the aquifer are permeable and therefore there is a potential for the movement of contaminants through the strata and pollution of the aquifer. The proposed surface water drainage strategy which has been developed in consultation with the EA, takes this into account.

Figure 2: Extract from Source Protection Zone Map from EA website

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Figure 3: Extract from Groundwater Vulnerability Zones Map from EA website

3.5

Flood Map for Surface Water

The EAâ&#x20AC;&#x2122;s Flood Map for Surface Water is generated by theoretically dropping a set amount of water on an area and calculating where it flows. It is important to note that while this mapping takes into account rural and urban catchments it does not take into account infiltration or existing drainage networks. Review of this mapping shows that surface water runoff from the site flows down the valleys towards the natural catchmentâ&#x20AC;&#x2122;s low points, before infiltrating / evaporating or running off-site. This is evident in the area surrounding the park and ride site where potentially up to 0.3m of flooding could be experienced in a 1 in 30 year rainfall event. Refer to Figure 4 below. However, the proposed surface water drainage strategy (described in section 3.9.4) is designed to accommodate a 1 in 100 year + 30% climate change rainfall event and so the majority of rainfall across the site will be captured and collected by the drainage system and conveyed to the attenuation facilities prior discharge to ground, therefore reducing the potential for surface water runoff to cause flooding. In addition the centre of the site is located on a local high point and so there is no potential for additional surface water runoff from outside the catchment to enter the proposed system and cause surface water flooding.

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Figure 4: Extract from EA Flood Map for Surface Water

3.6

Climate Change

In considering flood risk to the site, it is necessary to fully consider the potential impacts of climate change for the lifetime of the development within the mitigation measures. The NPPF Technical Guidance states that â&#x20AC;&#x2DC;in making an assessment of the impacts of climate change on flooding from the land, rivers and sea as part of a FRA, the sensitivity ranges in Table 5 (NPPF Technical Guidance) may provide an appropriate precautionary response to the uncertainty about climate change impacts on rainfall intensities, river flow, wave height and wind speedâ&#x20AC;&#x2122;. Parameter Peak Rainfall Intensity

1990 to 2025 2025 to 2055 2055 to 2085 2085 to 2115 +5%

+10%

+20%

+30%

Peak River Flow +10% +20% NPPF Technical Guidance Table 5: Recommended National Precautionary Sensitivity Ranges for Peak Rainfall Intensities, Peak River Flows, Offshore Wind Speeds and Wave Heights

In accordance with NPPF Table 5, above, the proposed surface water drainage strategy will include a 30% increase in rainfall intensities to take account of climate change over the lifetime of the development.

3.7

Impact of the Development on Site Permeability

Although the proposed development will result in an increase in impermeability of the site, the proposed surface water drainage strategy will discharge the water to ground maintaining the existing drainage regime on the site. Therefore there will be no exacerbation of off-site flood risk as a result of the development.

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3.8

The Sequential Test and Exception Test

The NPPF follows a sequential risk based approach in determining the suitability of land for development in flood risk areas, with intension of steering all new development to the lowest flood risk areas. The SFRA provides the basis for applying the Sequential Test. The NPPF states that ‘the aim of the Sequential Test is to steer new development to area with the lowest probability of flooding. Development should not be allocated or permitted if there are reasonably available sites appropriate for the proposed development in area with a lower probability of flooding.’ BDC’s SFRA contains information that forms the basis of the Sequential Test for a proposed development site. As the NS&OC site lies within Flood Zone 1 and is therefore at the lowest risk of flooding it is considered to have passed the Sequential Test. Table 3 of the NPPF Technical Guidance (a copy of which is contained in Section 3.3 Vulnerability) confirms that an Exception Test does not need to be carried out within Flood Zone 1.

3.9

Managing Surface Water and SuDS

As stated in Table 1 NPPF Technical Guidance (a copy of which is contained in Section 3.2 Flood Zone) ‘for development proposals on sites comprising one hectare or above the vulnerability to flooding from other sources as well as from river and sea flooding, and the potential to increase flood risk elsewhere through the addition of hard surfaces and the effect of the new development on surface water run-off, should be incorporated in a Flood Risk Assessment’. The EA’s FRA Guidance Note 1 also states that ‘when considering site drainage in Flood Zone 1, the focus within the FRA must be on flood risk management, but the use of SuDS should also seek to maximise opportunities for water quality and amenity benefits’. 3.9.1

Existing Surface Water Drainage

There are no formal surface water sewer networks, ditches or watercourses currently on the site and therefore the site discharges all surface water by infiltration and evapotranspiration. 3.9.2

Building Regulations Surface Water Drainage Hierarchy

The Building Regulations H3 stipulates that ‘rainwater from roofs and paved areas is carried away from the surface to discharge to one of the following in order of priority: 

An adequate soakaway or some other infiltration system,



A watercourse, or where that is not practical,



A sewer.’

3.9.3

Sustainable Drainage Systems (SuDS)

Flood risk and other environmental damage can be managed by minimising changes in volume and rate of surface water runoff from development sites through the use of SuDS, this being complementary to the control of development within the floodplain. SuDS will not alleviate flooding in an area prone to flooding, however if properly designed SuDS have the potential to prevent the surface water runoff from new development increasing the off-site flood risk. 3.9.4

Proposed Surface Water Drainage Strategy

The proposed surface water strategy which has been developed in consultation with the EA, seeks to replicate the existing greenfield runoff regime by returning the rainfall runoff generated by the development to ground via infiltration devices. A communal rainwater harvesting ring will also be

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incorporated around the urban centre of the development. Any overflow from this system will be discharged to ground via infiltration devices. Low infiltration rates were recorded at shallow depth (1m â&#x20AC;&#x201C; 2m below ground level) on the site, as described within the Preliminary Ground Investigation and Infiltration Drainage Assessment, 24109/005 Doc Ref: R001/Rev01. Therefore the proposed strategy combines infiltration basins and blankets which are designed to act as longer term retention areas, in combination with deep bore soakaways. To reduce the level of impermeability across the development replicable opportunities for on-plot SuDS have been assessed with the outcome that all the private roads, parking courts and driveways will be specified as permeable paving. An assessment of the potential contribution to the network from greenfield open spaces will also be undertaken at the detailed design stage. To ensure that the preliminary surface water drainage design remains conservative, no other on-plot Sustainable Drainage Systems (SuDS) have been included at this stage, as their exact locations will only be known during the detailed design stage. However, in accordance with the SuDS Manualâ&#x20AC;&#x2122;s (C697) requirement for multiple treatment stages for runoff prior to discharge, there is an aspiration to include swales, bio-retention areas and other SuDS features within the developments final layout to provide additional attenuation and water quality benefits to highway runoff. Infiltration Rates To inform the design of the infiltration basins and blankets, infiltration testing was carried out at five locations as part of the Preliminary Ground Investigation and Infiltration Drainage Assessment, 24109/005 Doc Ref: R001/Rev01. The results of which were cross referenced with the results of trial pitting and amended to compensate for areas where repetition of the test was not undertaken. Based on these results the report recommended that the following rates be used: Geology

Infiltration Rate Utilised

Glacial Sand and Gravels

5x10 m/s

Granular Brickearth

5x10 m/s

-5 -6 -7

Cohesive Brickearth 1x10 m/s Table 1: Recommended Infiltration Rates

Figure 2 from the Preliminary Ground Investigation and Infiltration Drainage Assessment, 24109/005 Doc Ref: R001/Rev01, contained in Appendix 3, shows the location of the trial pits and where infiltration testing was undertaken. Hydrological mapping and historic borehole and well records show the groundwater table coincides with the base of the Norwich Crag, and top of the chalk, at between 15 to 20m below ground level, th which is equivalent to between 5 to 15mAOD. The Deep Bore Feasibility Note, 24109/005 dated 14 June 2012, states that this data is supported by boreholes undertaken by Richard Jackson Ltd (June 2011) for the neighbouring Spixworth Road, Old Catton development. This ground investigation recorded the groundwater table at between 18 and 19m below ground level, which is equivalent to 13 and 14mAOD. Falling head tests carried out in 2No. 15m beep boreholes by MLM Environmental for the same -6 -4 neighbouring development recorded soakage rates of between 5.0x10 m/s and 7.4x10 m/s within the Norwich Crag for a head of water between 1 to 6m. These recorded infiltration rates vary significantly between the two borehole locations which according to the review could be influenced by the different clay content of the Norwich Crag or the boreholes construction technique. The boreholes which serve the Spixworth Road development were designed using the reported lower -6 infiltration rate of 5.0x10 m/s and a soakage zone of 4.6m which was replicated in MicroDrainage using a head/flow relationship. PBA has conservatively used this same head/flow relationship when modelling the deep bore soakaways for the North Norwich development.

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This deep bore soakaway design is considered to be conservative and that through detailed testing of the ground conditions and alternative design and construction techniques improved infiltration rates could be achieved, on the following basis: 

specific infiltration testing at greater depths could record better rates within the Norwich Crag,



deeper boreholes will allow greater ‘pressure head’ to be developed,



longer bore holes will allow a greater soakage zone to be designed, however it is acknowledged that pollution risks will be reduced by a larger unsaturated zone beneath the boreholes. th

A copy of the Deep Bore Soakaway Feasibility Note, 24109/005 dated 14 June 2012, is contained in Appendix 4. In order to confirm these infiltration rates and further inform the detailed design focused additional soakage testing will be undertaken prior to detailed design of both the shallow and deep bore infiltration devices. Permeable Pavements As previously discussed in order to reduce the level of impermeability across the development replicable opportunities for on-plot SuDS have been assessed with the outcome that all the private roads, parking courts and driveways will be specified as permeable paving. These permeable pavements will be sized to attenuate up to and including a 1 in 100 year + 30% climate change rainfall event with no surface flooding. Where half drain down times of over three days are predicted due to low infiltration rates additional storage will be provided within the permeable pavement to attenuate a subsequent 1 in 10 year rainfall event. Table 2, below, details the modelling results of an example section of permeable paving 10m x 10m for a selection of infiltration rates for the 1 in 100 year + 30% climate change rainfall event to demonstrate deliverability. The accompanying MicroDrainage calculations are contained in Appendix 5. Infiltration Rate

1 in 100 year + 30% climate change rainfall event Maximum depth of water

Half drain down time

-5

124mm

132min (<1 day)

-7

249mm

4326mm (3 days)

5.0x10 m/s 2.9x10 m/s

Subsequent 1 in 10 year rainfall event maximum depth of water

Minimum required depth of permeable pavement

N/A

124mm

N/A

249mm

118mm

411mm

-7

1.0x10 m/s 293mm 10833min (7.5 days) Table 2: Results of Permeable Pavement Deliverability Testing

-7

This modelling demonstrates that where infiltration rates are higher than 2.9x10 m/s no additional storage is required as the pavement is capable of discharging direct rainfall runoff to ground within the maximum three day half drain down time agreed with the EA. Therefore there will be no requirement to connect permeable pavements to the primary development drainage network. Sizing of the pavements will be undertaken at detailed design following additional soakage testing to confirm the infiltration rate available within each plot. Surface Water Drainage Networks As previously discussed due to low infiltration rates recorded at shallow depth (1m – 2m below ground level) the proposed strategy combines infiltration basins and blankets which are designed to act as longer-term retention areas, with deep bore soakaways. Discharge from the surface water networks will enter the infiltration devices either within the basin via a sediment fore bay / reed bed or directly into the infiltration blanket. This proposed arrangement allows flexibility in the proportion of attenuation provided as open space features and as underground devices dependent on the sub-catchment and

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its requirements for multifunctional public open space. The final layout of the infiltration devices will be determined during detailed design. Following consultation with the EA the proposed infiltration basin, infiltration blanket and deep bore -6 soakaway arrangement within each sub-catchment discharging into granular strata (5x10 m/s) will be designed to provide attenuation up to the 1 in 100 year + 30% climate change rainfall event and be able to accommodate a subsequent 1 in 10 year rainfall event, within 24 hours. The 1 in 100 year + 30% climate change event will discharge to ground via infiltration utilising the infiltration basin and infiltration blanket with the deep bore soakaways only being utilised in a subsequent rainfall event. A maximum 3 day half drain down time has been agreed with the EA for the longer-term retention basins and blankets. As such the requirement for accommodating a second 1 in 10 year rainfall event has been requested to ensure that sufficient storage is provided to manage subsequent rainfall events. Testing of the above discharge arrangement for use within the sub-catchments draining into the -7 cohesive strata (1x10 m/s) has shown that a half drain down time of 3 days is not achievable. Therefore in these situations it will be necessary for the strategy to be adapted and the infiltration basin, infiltration blanket and deep bore soakaways to operate together in all rainfall events. In order to demonstrate deliverability and that the development makes sufficient space for water the outline design for one of the catchments (Catchment 6) has been undertaken using conservative infiltration rates, typical plot layouts provided by Beyond Green and adhering to the precautionary principle. Due to existing topography of this natural catchment three separate networks are required to convey surface water across the sub-catchment assessed, to the areas proposed for infiltration. These networks are shown on drawing 24109/005/003, contained in Appendix 6. As previously discussed the discharge arrangement for each of these networks comprises an infiltration basin, an infiltration blanket and several deep bore soakaways. Table 3, below details the results of this modelling. The accompanying MicroDrainage calculations are contained in Appendix 6. Subcatchment

10.000

Contributing impermeable area

2.833ha (approx. 40%)

Shallow infiltration rate

1 in 100 year + 30% climate change rainfall event Maximum depth of water in basin

Half drain down time

Subsequent 1 in 10 year rainfall event maximum depth of water in basin

-6

2.7 days

1.256m

-7

1.575m

20 hours

N/A

5x10 m/s

30.000 11.429ha (approx. 43%) 1x10 m/s Table 3: Results of Catchment 6 Deliverability Testing

The results from this testing have then been used to demonstrate that sufficient space for water has been provided within the development layout based on the predicted level of impermeability and the recorded ground conditions. The results of this assessment are shown in Table 4, below, and drawing NS&OC 133, Proposed SuDS Plan, contained in Appendix 7.

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Catchment Catchment area

Drained area

Shallow infiltration rate

Area required based on MicroDrainage Quick Storage Estimate

Area provided within catchment

1+2a

12.41+2.06=14.42ha

8.65ha (60%)

1x10-7m/s (cohesive)

5,500m2

GS31, GS32 & SP01

2b+3

6.49+4.01=10.50ha

6.30ha (60%)

5x10-6m/s (granular)

3,305m2

GS26

2.39ha

1.70ha (100% school)+0.42ha (60%)

5x10-6m/s (granular) 1x10-7m/s (cohesive)

School to discharge surface water within own boundary 300m2 to drain residential area

SP02

24.87ha

14.92ha (60%)

5x10-6m/s (granular) 1x10-7m/s (cohesive)

9,500m2

GS16, GS18 & GS19

32.07ha

14.26ha (calculated refer to table 3)

5x10-6m/s (granular)

10,173m2 (refer to table 3)

GS11 & GS14

7.95ha

4.77ha (60%)

5x10-6m/s (granular)

2,100m2

GS03

8+9

7.67+8.66=16.33ha

9.80ha (60%)

5x10-6m/s (granular)

5,200m2

GS24 & GS33

9.99ha

5.99ha (60%)

1x10-7m/s (cohesive)

3,800m2

GS10

10.86ha

6.52ha (60%)

5x10-6m/s (granular)

3,500m2

GS10

Rainwater

26.0ha

9.01ha (35%)

1x10-7m/s (cohesive)

5,800m2

Provided within Beeston Park

Table 4: Areas Required and Provided for Drainage

Pollution Prevention In order to provide additional pollution control prior to discharge of the surface water runoff via the deep bore soakaways, by-pass separators will be placed on the network connecting the basins to the beep bore soakaways. Penstocks will also be placed on the upstream end of the network within the basins to allow the flow of water to the deep bore soakaways to be stopped should a major pollution event take place. A schematic detailing this proposed arrangement is included on drawing 24107/005/003 in Appendix 6. A quantative risk assessment will be undertaken at the reserved matters stage to demonstrate that the unsaturated zone beneath the proposed deep bore soakaways and drainage mitigation measures will prevent potential contaminants from impacting the quality of the groundwater. At the detailed design stage, where practicable, separate drainage networks will also be provided for roof and highway runoff to ensure that clean roof water does not pass through SuDS devices designed to provide a water quality benefit potentially reducing their ability to perform and reduce the risk of contamination to the aquifer. Ownership and Maintenance The current proposal for ownership and maintenance of the drainage system is to follow a traditional approach with the proposed sewer networks being offered for adoption to the local Water and Sewerage Company (Anglian Water), while the infiltration basins will be offered for adoption to the local authority as public open space. The remaining SuDS elements of the networks including the permeable pavements, swales and deep bore soakaways will also be offered for adoption by the local Highway Authority or council, but if there is reluctance to take these elements of the scheme they will be maintained by a private management company.

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North Sprowston & Old Catton Flood Risk Assessment

However, if and when Schedule 3 of the Flood and Water Management Act becomes enacted all the elements which are not adopted by Anglian Water will be offered for adoption to the SuDS Approval Body (SAB).

Summary

The EA Flood Zone mapping shows the site to lie in Flood Zone 1; land assessed as having a less than 1 in 1,000 annual probability of river or sea flooding (<0.1%). As such the NS&OC site has little or no risk of fluvial flooding, being in the lowest flood risk zone, and it is therefore considered to have passed the Sequential Test. The NPPF Tables 2 and 3, show that all development classes are appropriate for Flood Zone 1 and that an Exception Test is not required. EA groundwater mapping confirms that the site is not within a Groundwater Source Protection Zone, but lies over a major aquifer with high groundwater vulnerability. However, the proposed surface water drainage strategy, which has been developed in consultation with the EA, takes this into account. The EA Flood Map for Surface Water shows the potential for some limited surface water flooding in the low points across the site. However, the centre of the site is situated on a local high point and so there is no potential for additional surface water runoff from outside the catchment and the proposed drainage system will capture and convey rainfall run-off preventing surface water flooding. The proposed surface water strategy which has been developed in consultation with the EA, seeks to replicate the existing greenfield runoff regime by returning the rainfall runoff generated by the development to ground via infiltration devices as required by the Building Regulations H3 and SuDS best practice. The proposed strategy will include infiltration basin and infiltration blankets in combination with deep bore soakaways within each sub-catchment to provide attenuation up to the 1 in 100 year + 30% climate change rainfall event. Wherever practicable, on-plot SuDS will be incorporated into the development proposals in addition to all the private roads, parking courts and driveways, which will be specified as permeable paving. These may include swales and bio-retention areas within the developmentâ&#x20AC;&#x2122;s final layout to provide additional attenuation and water quality benefits to highway run-off in accordance with the SuDS Manualâ&#x20AC;&#x2122;s (C697) requirement for multiple treatment stages prior to discharge. As a result the precautionary principle advocated by the NPPF to the uncertainties of flooding has been satisfactorily addressed and there are no flooding or drainage related constraints to development on the site.

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North Sprowston & Old Catton Flood Risk Assessment

Appendix 1 â&#x20AC;&#x201C; Site Location Plan

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North Sprowston & Old Catton Flood Risk Assessment

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BGD 2012

This drawing is not to be scaled. Dimensions are indicative only.

PROPOSED OUTLINE APPLICATION BOUNDARY

NOTES:

BEESTON HALL APPLICATION AREA

DRAWING STATUS: FOR INFORMATION ONLY

REVISIONS PROJECT

NORTH SPROWSTON & OLD CATTON CLIENT

BEYOND GREEN DEVELOPMENTS DRAWING TITLE

LOCATION PLAN

SCALE A1

1:10 000 DATE

18/09/2012 JOB REF

NS&OC

DRAWING No

NS&OC 101

DRAWN BY

BGD STATUS

OPA CAD REF

REVISION No

North Sprowston & Old Catton Flood Risk Assessment

Appendix 2 â&#x20AC;&#x201C; Proposed Site Layout

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North Sprowston & Old Catton Flood Risk Assessment

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MS02

DEVELOPMENT BLOCK

PARKS

BGD 2012

NOTES: DRAWING STATUS: FOR INFORMATION ONLY

SP03

RECREATION SPACES

GS02

GREEN OPEN SPACES

PLANTATION

URBAN OPEN SPACE

PROPOSED PRIMARY SCHOOL LOCATION PROPOSED ENERGY CENTRE LOCATION

PROPOSED OUTLINE APPLICATION BOUNDARY BEESTON HALL APPLICATION AREA

PROPOSED ALIGNMENT OF NDR

GS24 GS33

GS25

SP03 BP13

RH01

BP14 BP15

GS01 GS23 BP08

BP09 BP12

BP11 BP10

GS26

GS32

GS02

BP01

OC17

BP02 OC01

SP01

BP06

BP03 BP04

OC15

GS31

BP07

GS22 OC02

OC03

OC04

SCH01

MS12

OC16

GS30

GS28

OC10

MS02

MS13

OC14

MS03

GS27

OC11

OC06

BP05

GS04

MS01 OC05

MS11 OC08

OC09

SCH02

OC12

MS04

GS29

MS09

CLS01

GS05

MS08

GS21

OC07

GS15

GS07 CLS10

GS08

WRS16

WRS13 WRS12

WRS10 WRS02

CLS17

GS37

GS16

WRS11

GS34 SP05

CLS20

CLS03

WRS14

GS35 WRS08

MS06

CLS09 CLS02

SP02

WRS09

WRS01 GS06

MS07 GS20

GS36

MS05

MS10

WRS15

OC13

WRS07

CLS18

WRS06

GS09

WRS03 CLS11

CLS16

CLS08

GS13 CLS19

CLS04

GS14

CLS05

GS19

GS12

CLS12 OC12

GS18

CLS06

CLS07

WRS04

CLS13

WRS05

GS10

CLS15 GS11

CLS14 GS11

GS17

SP03

REVISIONS PROJECT

NORTH SPROWSTON & OLD CATTON CLIENT

BEYOND GREEN DEVELOPMENTS DRAWING TITLE

PROPOSED DEVELOPMENT BLOCKS SCALE A1

1:5000 DATE

18/09/2012 JOB REF

NS&OC

DRAWING No

NS&OC 103

DRAWN BY

BGD STATUS

OPA CAD REF

REVISION No

North Sprowston & Old Catton Flood Risk Assessment

Appendix 3 â&#x20AC;&#x201C; Trial Pit and Infiltration Testing Location Plan

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North Sprowston & Old Catton Flood Risk Assessment

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North Sprowston & Old Catton Flood Risk Assessment

Appendix 4 â&#x20AC;&#x201C; Deep Bore Soakaway Feasibility Note, 24105/005

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North Sprowston & Old Catton Flood Risk Assessment

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To:

Dam Hayes

From:

Arie Zamler

Date:

14 June 2012

Job Number:

24109/005

Checked by:

Richard Thomas

Subject

Peter Brett Associates LLP Caversham Bridge House Waterman Place, Reading Berkshire RG1 8DN T: +44 (0)118 950 0761 F: +44 (0)118 959 7498 E: reading@peterbrett.com Website: www.peterbrett.com

North Sprowston and Old Catton, Deep Bored Soakaway feasibility note

Dan, We herein present our assessment with regards to the ground conditions and surface water infiltration solution for the above site. The Site The North Sprowston and Old Catton Development comprises approximately 328 hectares of land, situated to the north of Norwich. The site is located on gently undulating ground with the ground level at the highest point at about 34 m OD at the centre of the site and is falling gently to the north, east, southeast and southwest. Geology The According to the 1:50 000 scale geological map of the area (BGS, 1975) the majority of the site lies on the Norwich Brickearth, however, Glacial Sand and Gravel is also present overlying the Brickearth over parts of the site. The superficial deposits are underlain by the Norwich Crag and the Chalk at depth. The British Geological Survey archives contain records of a number of boreholes and water wells previously completed in the vicinity of the site. Copies of a number of these records have been obtained from the archives. A summary of the ground conditions based on these records is presented in the table below. Strata

Thickness (m)

Description

Norwich Brickearth

5 to 12

A sequence of clays, sands and gravels

Norwich Crag

5 to 10

Mostly sands and gravels with little clay

Chalk

More than 40 base not proven

Chalk

Hydrogeology The groundwater vulnerability map of the area (NRA, 1995) indicates the Glacial Sand and Gravel is classified as a ‘Secondary A’ aquifer (formerly minor aquifer). The Brickearth is classified as Unproductive Strata (formerly non-aquifer). The Chalk is classified as a ‘Principal Aquifer’ (formerly a Major Aquifer). The latest indicative maps available on the EA website (2012) indicate that the site is not located in a groundwater Source Protection Zone (SPZ). A source Catchment Protection Zone (former Zone 3Total Catchment) is shown immediately to the south for a groundwater abstraction in the centre of Norwich about 4 km south of the site southern boundary and to the east for a groundwater abstraction located about 5 km northeast of the site. Groundwater source protection zones are defined as the groundwater catchment zones for significant public water supply and private wells or boreholes that supply water to potable or equivalent standards. The hydrogeological map of the area (IGS, 1976) indicates that the groundwater level within the Chalk is approximately between 5 and 10 m OD in accordance with the 1975 groundwater levels, which is equivalent to about between 15 and 25 m below ground level.

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Page 1 of 3

The historic borehole and well records contain groundwater level records for dates between 1930s and 1960s. The groundwater table coincides with the base of the Norwich Crag and top of the Chalk and is approximately between 15 and 20 m below ground level, which is equivalent to about between 8 and 15 m OD. The groundwater flow direction for the hydrogeological map and the well records is from southwest to the northeast. Third Party Ground Investigation A preliminary ground investigation was carried out in June 2011 by Richard Jackson comprised 11 trial pits and 3 cable percussion boreholes to 20 m bgl in the adjacent Spixworth Road, Old Catton Development. An additional ground investigation was carried out in September 2011 by MLM Environmental at the adjacent site and comprised two cable percussion boreholes to 15 m bgl to provide additional information on the infiltration characteristics of the Norwich Crag for deep bored soakaways. The investigations confirmed the published geology in the area and comprise; Norwich Brickearth (7.9 – 8.8 m thick, about 24 – 23 m OD) underlain by Norwich Crag (9.5 – 10.8 thick, about 13 - 14 m OD) and Chalk (>2.0 m thick, base not proven) at depth. Groundwater entries were recorded during drilling of the deep boreholes, the groundwater entries were recorded between 18.3 and 19.0 m below ground level, which is equivalent to reduced levels of 13 and 14 m OD. Groundwater levels were reported to rise by up to 0.4 m. Each of the shallow boreholes (15m) was drilled in 200 mm diameter. On completion a 140 mm monitoring well was installed with slotted section within the Norwich Crag between 10.2 and 15.0 m bgl. In total, 4 no. infiltration tests were carried out in completed well in borehole BH1 and 2 no. in borehole BH2. The tests were reported to be in accordance with ‘The Soakaway Design Guide’ (Kent County Council, 2000). The reported soakage rates for head of water between 1 and 6 m varied between 0.3 and 45.9 l/m2/min, which is equivalent to between 5.0x10-6 and 7.6x10-4 m/sec. The reported infiltration rates varied significantly between the two locations, this may be influenced by different clay content in the Norwich Crag alternatively it could be related to the well construction design and workmanship. Ground Investigation by PBA A ground investigation was carried out at the site 14 March 2012 by RSA Geotechnics under the direction of PBA to assess the near surface ground conditions and the infiltration parameters. The investigation comprised the excavation of fifteen trial pits, to between 2.0 and 3.5 m below existing ground level. Five infiltration tests were carried out in selected locations in general accordance with BRE 365. The near surface soils comprised superficial deposits of granular or cohesive Norwich Brickearth or Glacial Sand and Gravel Deposits. The Norwich Crag or the Chalk were not encountered in any of the locations investigated. A summary of the soil infiltration rates calculated from the infiltration tests (RAS, 2012) are shown in the table below. Location TP101

Soil Infiltration Rate (m/s)

Cohesive Brickearth

-7 (1)

Cohesive Brickearth

2x10

TP107

1x10

TP112

3x10

TP113 TP114

Strata Tested

-7 (1)

Cohesive Brickearth -6

-6

Granular Brickearth

-5

Sand and Gravel

Between 5x10 and 9x10 Between 3x10 and 4x10

Note (1) The soil infiltration test was not repeated three times in accordance with BRE 365

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Page 2 of 3

Assessment Based on the information available, the ground conditions across the site comprise Granular and/or Cohesive Norwich Brickearth (5 to 12 m thick) with pockets of Glacial Sand and Gravel at the surface (thickness more than 2 m thick base not proven) underlain by Norwich Crag (between 5 and 10 m thick) and Chalk in depth. The groundwater level varies between about 15 and 20 m below ground level coinciding approximately with the base of the Norwich Crag and the top of the Chalk. Surface water drainage using surface water infiltration basins is likely to provide a suitable drainage solution at selected locations for the proposed development at the site where the granular Brickearth and the Sand and Gravel were found at the near surface. Infiltration basins may not provide enough surface water drainage in the cohesive Brickearth due to the low infiltration potential of these materials (1x10-7 m/s), requiring impractically large areas of basin to provide enough storage and infiltration area. The infiltration rates for bored soakaway test results carried out by a third party for an adjacent site indicates deep bored soakaways in the Norwich Crag are likely to be suitable as a surface water drainage system. It is envisaged that a combination of surface water basins used for infiltration and storage at selected locations with the backup of deep bored soakaways system to accommodate the requirement for “overflow” surface water drainage at the site is likely to provide a suitable solution for the surface water infiltration drainage strategy for the development. Additional facilities such as; swales, permeable surfaces, underground storage etc. should be used in combination with the surface water basins and the deep bored soakaways to accommodate surface water runoff. Further ground investigation will be required at the site to confirm the suitability of deep bored soakaways at selected locations and provide confirmation of the infiltration rates to be used for the design of the system. The Environment Agency (EA) may have concerns about the use of infiltration drainage from the site directly into a major aquifer for the discharge of surface water runoff from roads. It should be noted that according to the EA maps the site is not within a groundwater source protection zone for groundwater abstraction. Subject to confirmation on the infiltration rates and groundwater level fluctuation at the site it is possible that deep bored soakaways can be designed to discharge water into the Norwich Crag and with a suitable thickness of unsaturated zone above the groundwater table. Early engagement with the Environment Agency is recommended about the drainage proposals and to establish their view with regard to surface water discharge directly into or above the aquifer. Consideration may need to be given for the design of a separate infiltration system for road runoff and ‘clean’ runoff such as roof runoff. In order to prevent sediment and potential contamination in the runoff from entering the groundwater, the surface water drainage system should include sediment traps, settlement ponds and petrol / oil interceptors before discharging the water into the ground via a deep soakaway. It may be possible to pass the water through reed beds in the basins before it is discharged to deep soakaways. It should be noted that deep bored soakaways in granular strata will require careful design with a suitable filter pack to prevent the system from significant deterioration caused by sediment in the surface runoff clogging up the ground surrounding the soakaway. There should be generous redundancy in the design and a facility and commitment to maintain the wells. Limitations Some of the conclusions in this technical note are based on third party data that was not specified, designed or observed by PBA. No guarantee can be given for the accuracy or completeness of any of the third party data used. If a strategy based on deep bored soakaways is to be adopted then ground investigation and testing is essential. Trust this is sufficient for your needs. Arie

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North Sprowston & Old Catton Flood Risk Assessment

Appendix 5 â&#x20AC;&#x201C; Permeable Paving MicroDrainage Calculations

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North Sprowston & Old Catton Flood Risk Assessment

J:\24109 Broadlands\005 Water\Civils\wp\Reports\R003 - FRA Rev 3.docx

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 1 North Norwich Permeable Paving Test Cohesive Brickearth 1+ Designed by CMB Checked by Source Control W.12.6.1 Summary of Results for 10 year Return Period Half Drain Time : 5930 minutes.

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

Storm Event

Max Max Max Max Level Depth Infiltration Volume (m) (m) (l/s) (mÂł)

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.270 0.021 0.281 0.032 0.292 0.043 0.303 0.054 0.310 0.061 0.315 0.066 0.323 0.074 0.328 0.079 0.331 0.082 0.335 0.086 0.339 0.090 0.345 0.096 0.348 0.099 0.348 0.099 0.347 0.098 0.345 0.096 0.342 0.093 0.339 0.090 0.335 0.086 0.274 0.025 0.286 0.037 0.299 0.050 0.312 0.063 0.320 0.071 0.326 0.077 0.334 0.085 0.340 0.091 0.344 0.095 0.348 0.099 0.353 0.104 0.360 0.111 0.365 0.116 0.367 0.118 0.365 0.116 0.362 0.113 0.359 0.110 0.355 0.106 0.351 0.102 Storm Event

Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.0 0.6 0.0 0.9 0.0 1.3 0.0 1.6 0.0 1.8 0.0 2.0 0.0 2.2 0.0 2.4 0.0 2.5 0.0 2.6 0.0 2.7 0.0 2.9 0.0 3.0 0.0 3.0 0.0 2.9 0.0 2.9 0.0 2.8 0.0 2.7 0.0 2.6 0.0 0.8 0.0 1.1 0.0 1.5 0.0 1.9 0.0 2.1 0.0 2.3 0.0 2.5 0.0 2.7 0.0 2.9 0.0 3.0 0.0 3.1 0.0 3.3 0.0 3.5 0.0 3.5 0.0 3.5 0.0 3.4 0.0 3.3 0.0 3.2 0.0 3.0 Rain Time-Peak (mm/hr) (mins) 60.181 38.800 24.003 14.477 10.686 8.591 6.304 5.058 4.261 3.704 2.967 2.170 1.585 1.268 0.926 0.740 0.622 0.540 0.479 60.181 38.800 24.003 14.477 10.686 8.591 6.304 5.058 4.261 3.704 2.967 2.170 1.585 1.268 0.926 0.740 0.622 0.540 0.479

19 34 64 124 184 244 364 484 604 722 962 1442 2160 2856 3540 4264 5048 5880 6664 19 34 64 122 182 242 360 478 596 714 950 1414 2100 2768 4060 4560 5480 6400 7272

ÂŠ1982-2011 Micro Drainage Ltd

Status

Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood Flood

Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 2 North Norwich Permeable Paving Test Cohesive Brickearth 1+ Designed by CMB Checked by Source Control W.12.6.1 Rainfall Details

FSR Ratio R 0.405 Cv (Winter) 0.840 Rainfall Model Return Period (years) 10 Summer Storms Yes Shortest Storm (mins) 15 Region England and Wales Winter Storms Yes Longest Storm (mins) 10080 M5-60 (mm) 20.000 Cv (Summer) 0.750 Climate Change % +0 Time / Area Diagram Total Area (ha) 0.010 Time (mins)

Area (ha)

0-4 0.010

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 3 North Norwich Permeable Paving Test Cohesive Brickearth 1+ Designed by CMB Checked by Source Control W.12.6.1 Model Details Storage is Online Cover Level (m) 0.450 Porous Car Park Structure

Width (m) 10.0 Infiltration Coefficient Base (m/hr) 0.00036 Membrane Percolation (mm/hr) 1000 Length (m) 10.0 Max Percolation (l/s) 27.8 Slope (1:X) 0.0 Safety Factor 2.0 Depression Storage (mm) 5 Porosity 0.30 Evaporation (mm/day) 3 Invert Level (m) 0.249 Cap Volume Depth (m) 0.400

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 1 North Norwich Permeable Paving Test Cohesive Brickearth 2 Designed by CMB Checked by Source Control W.12.6.1

Summary of Results for 100 year Return Period (+30%) Half Drain Time : 4326 minutes.

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

Storm Event

Max Max Max Max Level Depth Infiltration Volume (m) (m) (l/s) (mÂł)

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.063 0.063 0.088 0.088 0.114 0.114 0.139 0.139 0.153 0.153 0.163 0.163 0.176 0.176 0.186 0.186 0.193 0.193 0.198 0.198 0.205 0.205 0.213 0.213 0.216 0.216 0.213 0.213 0.206 0.206 0.198 0.198 0.190 0.190 0.182 0.182 0.173 0.173 0.073 0.073 0.101 0.101 0.129 0.129 0.158 0.158 0.174 0.174 0.185 0.185 0.200 0.200 0.211 0.211 0.219 0.219 0.225 0.225 0.234 0.234 0.244 0.244 0.249 0.249 0.249 0.249 0.239 0.239 0.228 0.228 0.217 0.217 0.205 0.205 0.193 0.193 Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.0 1.9 0.0 2.6 0.0 3.4 0.0 4.2 0.0 4.6 0.0 4.9 0.0 5.3 0.0 5.6 0.0 5.8 0.0 5.9 0.0 6.2 0.0 6.4 0.0 6.5 0.0 6.4 0.0 6.2 0.0 5.9 0.0 5.7 0.0 5.4 0.0 5.2 0.0 2.2 0.0 3.0 0.0 3.9 0.0 4.7 0.0 5.2 0.0 5.6 0.0 6.0 0.0 6.3 0.0 6.6 0.0 6.8 0.0 7.0 0.0 7.3 0.0 7.5 0.0 7.5 0.0 7.2 0.0 6.8 0.0 6.5 0.0 6.1 0.0 5.8 Rain Time-Peak (mm/hr) (mins)

Summer 128.843 Summer 84.413 Summer 52.662 Summer 31.735 Summer 23.281 Summer 18.577 Summer 13.477 Summer 10.732 Summer 8.987 Summer 7.771 Summer 6.173 Summer 4.456 Summer 3.212 Summer 2.543 Summer 1.828 Summer 1.445 Summer 1.203 Summer 1.035 Summer 0.912 Winter 128.843 Winter 84.413 Winter 52.662 Winter 31.735 Winter 23.281 Winter 18.577 Winter 13.477 Winter 10.732 Winter 8.987 Winter 7.771 Winter 6.173 Winter 4.456 Winter 3.212 Winter 2.543 Winter 1.828 Winter 1.445 Winter 1.203 Winter 1.035 Winter 0.912

19 34 64 124 184 244 364 484 602 722 962 1442 2160 2792 3416 4152 4968 5784 6560 19 34 64 122 182 242 360 478 596 714 950 1412 2096 2768 3976 4488 5400 6304 7160

ÂŠ1982-2011 Micro Drainage Ltd

Status

O K O K Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk O K Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 2 North Norwich Permeable Paving Test Cohesive Brickearth 2 Designed by CMB Checked by Source Control W.12.6.1 Rainfall Details

FSR Ratio R 0.405 Cv (Winter) 0.840 Rainfall Model Return Period (years) 100 Summer Storms Yes Shortest Storm (mins) 15 Region England and Wales Winter Storms Yes Longest Storm (mins) 10080 M5-60 (mm) 20.000 Cv (Summer) 0.750 Climate Change % +30 Time / Area Diagram Total Area (ha) 0.010 Time (mins)

Area (ha)

0-4 0.010

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 3 North Norwich Permeable Paving Test Cohesive Brickearth 2 Designed by CMB Checked by Source Control W.12.6.1 Model Details Storage is Online Cover Level (m) 0.400 Porous Car Park Structure

Width (m) 10.0 Infiltration Coefficient Base (m/hr) 0.00104 Membrane Percolation (mm/hr) 1000 Length (m) 10.0 Max Percolation (l/s) 27.8 Slope (1:X) 0.0 Safety Factor 2.0 Depression Storage (mm) 5 Porosity 0.30 Evaporation (mm/day) 3 Invert Level (m) 0.000 Cap Volume Depth (m) 0.350

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Granular Permeable Pa... Micro Drainage

Page 1 North Norwich Permeable Paving Test Granular Brickearth Designed by CMB Checked by Source Control W.12.6.1

Summary of Results for 100 year Return Period (+30%) Half Drain Time : 132 minutes.

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

Storm Event

Max Max Max Max Level Depth Infiltration Volume (m) (m) (l/s) (mÂł)

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.059 0.059 0.080 0.080 0.097 0.097 0.106 0.106 0.108 0.108 0.107 0.107 0.103 0.103 0.097 0.097 0.091 0.091 0.084 0.084 0.072 0.072 0.054 0.054 0.042 0.042 0.035 0.035 0.027 0.027 0.022 0.022 0.018 0.018 0.016 0.016 0.014 0.014 0.069 0.069 0.092 0.092 0.112 0.112 0.124 0.124 0.124 0.124 0.122 0.122 0.114 0.114 0.104 0.104 0.094 0.094 0.084 0.084 0.066 0.066 0.046 0.046 0.035 0.035 0.028 0.028 0.020 0.020 0.016 0.016 0.013 0.013 0.012 0.012 0.010 0.010 Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.3 1.8 0.3 2.4 0.3 2.9 0.3 3.2 0.3 3.2 0.3 3.2 0.3 3.1 0.3 2.9 0.3 2.7 0.3 2.5 0.3 2.2 0.3 1.6 0.2 1.3 0.2 1.1 0.1 0.8 0.1 0.6 0.1 0.5 0.1 0.5 0.1 0.4 0.3 2.1 0.3 2.8 0.3 3.4 0.3 3.7 0.3 3.7 0.3 3.7 0.3 3.4 0.3 3.1 0.3 2.8 0.3 2.5 0.3 2.0 0.2 1.4 0.2 1.0 0.1 0.8 0.1 0.6 0.1 0.5 0.1 0.4 0.1 0.3 0.1 0.3 Rain Time-Peak (mm/hr) (mins)

18 32 62 108 138 170 238 306 372 434 558 792 1144 1500 2244 2944 3672 4408 5144 18 32 60 116 148 184 260 332 400 464 586 796 1168 1524 2252 2944 3744 4464 5120

ÂŠ1982-2011 Micro Drainage Ltd

Status

Flood Flood Flood Flood

Flood Flood Flood Flood Flood Flood

O K O K O K Risk Risk Risk Risk O K O K O K O K O K O K O K O K O K O K O K O K O K O K Risk Risk Risk Risk Risk Risk O K O K O K O K O K O K O K O K O K O K O K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Granular Permeable Pa... Micro Drainage

Page 2 North Norwich Permeable Paving Test Granular Brickearth Designed by CMB Checked by Source Control W.12.6.1 Rainfall Details

Area (ha)

0-4 0.010

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Granular Permeable Pa... Micro Drainage

Page 3 North Norwich Permeable Paving Test Granular Brickearth Designed by CMB Checked by Source Control W.12.6.1 Model Details Storage is Online Cover Level (m) 0.400 Porous Car Park Structure

Width (m) 10.0 Infiltration Coefficient Base (m/hr) 0.01800 Membrane Percolation (mm/hr) 1000 Length (m) 10.0 Max Percolation (l/s) 27.8 Slope (1:X) 0.0 Safety Factor 2.0 Depression Storage (mm) 5 Porosity 0.30 Evaporation (mm/day) 3 Invert Level (m) 0.000 Cap Volume Depth (m) 0.350

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 1 North Norwich Permeable Paving Test Cohesive Brickearth 1 Designed by CMB Checked by Source Control W.12.6.1

Summary of Results for 100 year Return Period (+30%) Half Drain Time exceeds 7 days.

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

Storm Event

Max Max Max Max Level Depth Infiltration Volume (m) (m) (l/s) (mÂł)

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.064 0.064 0.088 0.088 0.114 0.114 0.140 0.140 0.156 0.156 0.166 0.166 0.181 0.181 0.192 0.192 0.200 0.200 0.207 0.207 0.217 0.217 0.231 0.231 0.243 0.243 0.249 0.249 0.253 0.253 0.252 0.252 0.247 0.247 0.241 0.241 0.236 0.236 0.073 0.073 0.101 0.101 0.130 0.130 0.159 0.159 0.176 0.176 0.188 0.188 0.205 0.205 0.217 0.217 0.227 0.227 0.235 0.235 0.247 0.247 0.263 0.263 0.277 0.277 0.285 0.285 0.292 0.292 0.293 0.293 0.289 0.289 0.284 0.284 0.277 0.277 Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.0 1.9 0.0 2.7 0.0 3.4 0.0 4.2 0.0 4.7 0.0 5.0 0.0 5.4 0.0 5.7 0.0 6.0 0.0 6.2 0.0 6.5 0.0 6.9 0.0 7.3 0.0 7.5 0.0 7.6 0.0 7.5 0.0 7.4 0.0 7.2 0.0 7.1 0.0 2.2 0.0 3.0 0.0 3.9 0.0 4.8 0.0 5.3 0.0 5.6 0.0 6.1 0.0 6.5 0.0 6.8 0.0 7.0 0.0 7.4 0.0 7.9 0.0 8.3 0.0 8.6 0.0 8.8 0.0 8.8 0.0 8.7 0.0 8.5 0.0 8.3 Rain Time-Peak (mm/hr) (mins)

19 34 64 124 184 244 364 484 604 724 964 1444 2164 2884 4320 5760 6984 7440 8168 19 34 64 124 182 242 362 480 598 716 954 1428 2136 2828 4232 5592 6912 8208 9384

ÂŠ1982-2011 Micro Drainage Ltd

Status

O K O K Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk O K Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk Risk

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 2 North Norwich Permeable Paving Test Cohesive Brickearth 1 Designed by CMB Checked by Source Control W.12.6.1 Rainfall Details

Area (ha)

0-4 0.010

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 08.08.2012 File 2012.08.08 - Cohesive Permeable Pa... Micro Drainage

Page 3 North Norwich Permeable Paving Test Cohesive Brickearth 1 Designed by CMB Checked by Source Control W.12.6.1 Model Details Storage is Online Cover Level (m) 0.400 Porous Car Park Structure

ÂŠ1982-2011 Micro Drainage Ltd

North Sprowston & Old Catton Flood Risk Assessment

Appendix 6 â&#x20AC;&#x201C; Typical Catchment Surface Water Drainage Layout and MicroDrainage Calculations

J:\24109 Broadlands\005 Water\Civils\wp\Reports\R003 - FRA Rev 3.docx

North Sprowston & Old Catton Flood Risk Assessment

J:\24109 Broadlands\005 Water\Civils\wp\Reports\R003 - FRA Rev 3.docx

Celia Brown From: Sent: To: Subject:

MD Support <Support@microdrainage.co.uk> 15 August 2012 09:22 Celia Brown RE: Difference in Water Level Results

Dear Celia, The reason you are finding a difference in the results produced in Source Control and in Simulation is due to Source Control not using backwater analysis or taking account of any storage that can be found within your network.

Source Control is a tool to provide you with an indication of the storage requirements on your development however, once you start designing your network(s) using System1 and other modules, the wizards will provide results which take into account any additional storage in your network and for backwater analysis. I hope this answers your query but should you have any queries please send in your WinDes files and we can look into your query in more detail. Kind regards, Paul Coombs

Support Micro Drainage Ltd An xp solutions company

Telephone: +44 (0) 1635 582555 Fax: +44 (0) 1635 582131 Email: support@microdrainage.co.uk Web: www.microdrainage.co.uk From: Celia Brown [cbrown@peterbrett.com] Sent: 14 August 2012 17:09 To: MD Support Subject: Difference in Water Level Results Serial No: 1677348841

Dear Sir / Madam, Please can you explain why when the same scenario (network discharging to basin over infiltration blanket) is modelled in the Simulation and Source Control (Cascade) modules different results are produced. The difference is noted on the sketch attached. Even when a storage volume equivalent to that available in the pipe network (62m3) is added to the blanket in Source Control the water level in a 1 in 100 year + 30% climate change rainfall event is only reduced to 29.103m which is still 573mm above the Simulation result level. Regards, Celia Brown Engineer For and on behalf of Peter Brett Associates LLP Caversham Bridge House, Waterman Place, Reading, Berkshire, RG1 8DN DD: +44 (0)118 952 0321 Tel: +44 (0)118 950 0761 Fax: +44 (0)118 959 7498 E-mail: cbrown@peterbrett.com 1

Website: www.peterbrett.com Roger Tym & Partners and Baker Associates are now part of Peter Brett Associates LLP. Peter Brett Associates LLP is a limited liability partnership registered in England and Wales. Registered number: OC334398. Roger Tym & Partners and Baker Associates are part of Peter Brett Associates LLP. A list of members is open to inspection at our registered office. Registered Office: Caversham Bridge House, Waterman Place, Reading, Berkshire, RG1 8DN. UK T: +44 (0)118 950 0761 F: +44 (0)118 959 7498. Brett Consulting Limited is wholly owned by Peter Brett Associates LLP. Registered number: 07765026. Registered address: as above. Email is used as a convenient medium for rapid data transfer. Any contractual correspondence sent or received by email will not be held to be such unless and until it is received in writing by fax or letter. Likewise, file attachments must be treated as uncontrolled documents until issued as hard copy. This email and any files transmitted with it are confidential and may be legally privileged, and are intended solely for the use of the individual or entity to which they are addressed. If an addressing or transmission error has misdirected this email please notify the author by replying to this email and delete the email. If you are not the intended recipient you must not use or disclose, print or rely on this email. You are advised that you open any attachment at your own risk. Any OS Data attached to this email is issued in accordance with Licence No. 100021575 under condition that it is used to plot once and not retained on the recipients computer system.

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Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Infiltrati... Micro Drainage

Page 1 North Norwich Network 30 Infiltration Arrangement Designed by CMB Checked by Source Control W.12.6.1

Summary of Results for 100 year Return Period (+30%) Half Drain Time : 1256 minutes. Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

Max Level (m) 27.147 27.330 27.510 27.679 27.765 27.816 27.874 27.905 27.918 27.920 27.904 27.853 27.773 27.693 27.547 27.420 27.307 27.207 27.120 27.221 27.425 27.626 27.817 27.915 27.975 28.046 28.087 28.108 28.117 28.113 28.058 27.958 27.854 27.644 27.453 27.286 27.144 27.032

Max Max Max Max Max Status Depth Infiltration Control Σ Outflow Volume (m) (l/s) (l/s) (l/s) (m³) 0.627 0.810 0.990 1.159 1.245 1.296 1.354 1.385 1.398 1.400 1.384 1.333 1.253 1.173 1.027 0.900 0.787 0.687 0.600 0.701 0.905 1.106 1.297 1.395 1.455 1.526 1.567 1.588 1.597 1.593 1.538 1.438 1.334 1.124 0.933 0.766 0.624 0.512 Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.3 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 0.2 48.0 Rain Time-Peak (mm/hr) (mins)

23 37 68 126 186 246 364 484 602 722 952 1156 1536 1936 2732 3520 4320 5016 5744 23 37 66 124 182 242 358 474 590 704 926 1342 1664 2108 2984 3808 4544 5272 5856

48.2 48.2 48.2 48.2 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.2 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.3 48.2 48.2 48.2 48.2 48.2

2712.4 3534.9 4361.6 5148.8 5554.2 5794.3 6074.1 6220.0 6283.8 6294.4 6214.6 5971.8 5594.3 5215.1 4533.2 3947.6 3432.3 2982.2 2593.8 3042.9 3968.5 4903.2 5800.1 6270.2 6557.4 6902.9 7098.8 7203.2 7248.7 7229.2 6957.3 6474.8 5978.5 4984.1 4097.2 3336.8 2698.5 2202.6

O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O

K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Infiltrati... Micro Drainage

Page 2 North Norwich Network 30 Infiltration Arrangement Designed by CMB Checked by Source Control W.12.6.1 Rainfall Details

Area (ha)

Time (mins)

Area (ha)

0-4 5.586

4-8

5.843

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Infiltrati... Micro Drainage

Page 3 North Norwich Network 30 Infiltration Arrangement Designed by CMB Checked by Source Control W.12.6.1 Model Details Storage is Online Cover Level (m) 28.800 Infiltration Basin Structure

26.520 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.00036 Porosity 1.00 Infiltration Coefficient Side (m/hr) 0.00036 Depth (m) Area (m²) 0.000

4190.6

Depth (m)

Area (m²)

2.000

5060.6

Depth/Flow Relationship Outflow Control Invert Level (m) 22.500 Depth (m) Flow (l/s) 0.100 0.200 0.300 0.400

3.0000 3.0000 3.0000 3.0000

Depth (m) 0.500 0.600 0.800 1.000

Flow (l/s) Depth (m) 6.0000 6.0000 6.0000 6.0000

1.200 1.400 1.600 1.800

Flow (l/s) 6.0000 9.0000 9.0000 9.0000

Depth (m) Flow (l/s) 2.000 2.200 2.400 2.600

9.0000 9.0000 18.0000 18.0000

Depth (m) 3.000 3.500 4.000 4.500

Flow (l/s) Depth (m) 18.0000 18.0000 18.0000 48.0000

5.000 5.500 6.000 6.500

Flow (l/s) 48.0000 48.0000 48.0000 48.0000

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 1 North Norwich Network 10 Infiltration Blanket Designed by CMB Checked by Source Control W.12.6.1

Cascade Summary of Results for 2012.08.10 - Network 10 Infiltration Blanket.srcx Upstream Outflow To Structures (None)

Overflow To

(None) 2012.08.10 - Network 10 Infiltration Basin.srcx Half Drain Time : 3487 minutes.

Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

Max Level (m)

Max Max Max Max Max Status Depth Infiltration Overflow Σ Outflow Volume (m) (l/s) (l/s) (l/s) (m³)

28.182 0.382 28.300 0.500 28.420 0.620 28.540 0.740 28.607 0.807 28.651 0.851 28.711 0.911 28.752 0.952 28.781 0.981 28.802 1.002 28.831 1.031 28.853 1.053 28.845 1.045 28.814 1.014 28.751 0.951 28.697 0.897 28.649 0.849 28.604 0.804 28.562 0.762 28.229 0.429 28.360 0.560 28.496 0.696 28.631 0.831 28.707 0.907 28.758 0.958 28.827 1.027 28.875 1.075 28.910 1.110 28.937 1.137 28.974 1.174 29.004 1.204 29.003 1.203 28.994 1.194 28.917 1.117 28.848 1.048 Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

4.9 0.0 4.9 4.9 0.0 4.9 5.0 0.0 5.0 5.0 0.0 5.0 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 4.9 0.0 4.9 5.0 0.0 5.0 5.0 0.0 5.0 5.1 0.0 5.1 5.1 0.0 5.1 5.1 0.0 5.1 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.2 0.0 5.2 5.3 0.0 5.3 5.3 10.2 15.4 5.3 8.2 13.5 5.3 0.0 5.3 5.2 0.0 5.2 5.2 0.0 5.2 Rain Overflow Time-Peak (mm/hr) Volume (mins) (m³)

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 15.4 26.6 0.0 0.0 0.0

19 34 64 124 184 244 364 482 602 722 962 1442 2160 2740 3412 4152 4968 5784 6560 19 34 64 122 182 242 360 478 596 714 946 1368 1952 2764 3936 4440

680.2 888.7 1102.8 1316.2 1435.2 1513.5 1619.6 1692.3 1744.3 1782.7 1833.1 1873.3 1859.2 1803.6 1691.1 1595.1 1510.1 1430.5 1354.8 762.2 996.2 1237.0 1478.1 1613.6 1703.4 1826.5 1912.2 1974.8 2022.1 2087.1 2135.0 2135.1 2123.6 1987.3 1864.5

O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O

K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 2 North Norwich Network 10 Infiltration Blanket Designed by CMB Checked by Source Control W.12.6.1

Cascade Summary of Results for 2012.08.10 - Network 10 Infiltration Blanket.srcx Storm Event

Max Level (m)

Max Max Max Status Max Max Depth Infiltration Overflow Σ Outflow Volume (l/s) (l/s) (l/s) (m³) (m)

7200 min Winter 28.784 0.984 8640 min Winter 28.720 0.920 10080 min Winter 28.658 0.858 Storm Event

7200 min Winter 8640 min Winter 10080 min Winter

5.2 0.0 5.2 1749.2 5.1 0.0 5.1 1635.9 5.1 0.0 5.1 1525.0 Rain Overflow Time-Peak (mm/hr) Volume (mins) (m³) 1.203 1.035 0.912

0.0 0.0 0.0

5336 6304 7160

O K O K O K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 3 North Norwich Network 10 Infiltration Blanket Designed by CMB Checked by Source Control W.12.6.1

Cascade Rainfall Details for 2012.08.10 - Network 10 Infiltration Blanket.srcx FSR Ratio R 0.405 Cv (Winter) 0.840 Rainfall Model Return Period (years) 100 Summer Storms Yes Shortest Storm (mins) 15 Region England and Wales Winter Storms Yes Longest Storm (mins) 10080 M5-60 (mm) 20.000 Cv (Summer) 0.750 Climate Change % +30 Time / Area Diagram Total Area (ha) 2.833 Time (mins)

Area (ha)

0-4 2.833

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 4 North Norwich Network 10 Infiltration Blanket Designed by CMB Checked by Source Control W.12.6.1

Cascade Model Details for 2012.08.10 - Network 10 Infiltration Blanket.srcx Storage is Online Cover Level (m) 31.000 Cellular Storage Structure 27.800 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.01800 Porosity 0.95 Infiltration Coefficient Side (m/hr) 0.01800 Depth (m) Area (m²) 0.000

1872.0

Inf. Area (m²) 1872.0

Depth (m) Area (m²) 1.200

Inf. Area (m²)

1872.0

2107.2

Depth (m) Area (m²) 1.201

Weir Overflow Control Discharge Coef 0.544 Width (m) 26.000 Invert Level (m) 29.000

0.0

Inf. Area (m²) 2107.2

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 10 Basin and ... Micro Drainage

Page 1 North Norwich Network 10 Basin and Blanket Designed by CMB Checked by Network W.12.6.1 Existing Network Details for Storm

* - Indicates pipe has been modified outside of System 1 PN

Length (m)

Fall (m)

10.000 10.001 10.002 10.003 10.004 10.005

70.000 60.000 60.000 70.000 20.000 10.000

0.294 0.252 0.252 0.154 0.044 0.026

238.0 238.0 238.1 454.5 454.5 384.6

0.102 0.102 0.102 0.195 0.195 0.195

4.00 0.00 0.00 0.00 0.00 0.00

0.600 0.600 0.600 0.600 0.600 0.600

o o o o o o

300 300 300 525 525 450

11.000 70.000 0.419 11.001 90.000 0.378

167.1 238.1

0.091 0.193

4.00 0.600 0.00 0.600

o o

225 300

12.000 60.000 0.132 12.001 45.000 0.099

454.5 454.5

0.168 0.261

4.00 0.600 0.00 0.600

o o

525 525

11.002 80.000 0.176 11.003 10.000 0.022

454.5 454.5

0.193 0.102

0.00 0.600 0.00 0.600

o o

525 525

13.000 13.001 13.002 13.003 13.004

238.1 384.6 384.6 384.6 454.5

0.094 0.187 0.187 0.280 0.186

4.00 0.00 0.00 0.00 0.00

o o o o o

300 450 450 450 525

80.000 60.000 70.000 70.000 10.000

0.336 0.156 0.182 0.182 0.022

Slope (1:X)

I.Area T.E. (ha) (mins)

* 10.006 10.000 0.001 10000.0 0.000 PN US/MH US/CL US/IL US DS/CL Name (m) (m) C.Depth (m) (m) 10.000 10.001 10.002 10.003 10.004 10.005

1 2 3 4 5 6

11.000 11.001

0.00 0.600 o 100 DS/IL DS Ctrl US/MH (m) C.Depth (mm) (m) 1200 1200 1050 1500 1500 1500

7 33.230 30.580 8 32.620 30.086

2.425 32.620 30.161 2.234 32.000 29.708

2.234 1.992

1200 1200

12.000 12.001

9 31.710 29.713 10 31.670 29.581

1.472 31.670 29.581 1.564 32.000 29.482

1.564 1.993

1500 1500

11.002 11.003

11 32.000 29.482 12 31.200 29.306

1.993 31.200 29.306 1.369 31.000 29.284

1.369 1.191

1500 1500

13.000 13.001 13.002 13.003 13.004

13 14 15 16 17

1.200 1.526 1.282 1.394 2.146

28.974 28.668 28.486 28.304 28.207

1.526 1.282 1.394 2.146 2.268

1050 1350 1350 1350 1500

0.400 31.000 30.499

0.401

1500

29.310 28.824 28.668 28.486 28.229

18 31.000 30.500

2.142 1.766 1.438 1.200 2.024 2.143

0.600 0.600 0.600 0.600 0.600

1.766 1.438 1.200 2.024 2.068 2.169

30.810 30.800 30.400 30.330 30.900

29.628 29.334 29.082 28.605 28.451 28.407

HYD DIA SECT (mm)

29.334 29.082 28.830 28.451 28.407 28.381

* 10.006

32.070 31.400 30.820 30.330 31.000 31.000

k (mm)

31.400 30.820 30.330 31.000 31.000 31.000

30.800 30.400 30.330 30.900 31.000

Free Flowing Outfall Details for Storm Outfall C. Level I. Level Min D,L W Outfall Name (m) (m) I. Level (mm) (mm) Pipe Number (m) 10.006

31.000

30.499

0.000

Simulation Criteria for Storm Manhole Headloss Coeff (Global) Volumetric Runoff Coeff 0.750 Areal Reduction Factor 1.000 Foul Sewage per hectare (l/s) Hot Start (mins) 0 Additional Flow - % of Total Flow Hot Start Level (mm) 0 MADD Factor * 10m³/ha Storage

0.500 Inlet Coeffiecient 0.800 0.000 Flow per Person per Day (l/per/day) 0.000 0.000 Run Time (mins) 60 2.000 Output Interval (mins) 1

Number of Input Hydrographs 0 Number of Offline Controls 0 Number of Time/Area Diagrams 0 Number of Online Controls 0 Number of Storage Structures 1 Number of Real Time Controls 0 Synthetic Rainfall Details FSR M5-60 (mm) 20.000 Cv (Summer) 0.750 Rainfall Model Return Period (years) 2 Ratio R 0.405 Cv (Winter) 0.840 Region England and Wales Profile Type Summer Storm Duration (mins) 30

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 10 Basin and ... Micro Drainage

Page 2 North Norwich Network 10 Basin and Blanket Designed by CMB Checked by Network W.12.6.1 Storage Structures for Storm

Complex Manhole: 18, DS/PN: 10.006

Infiltration Basin 29.000 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.00000 Porosity 1.00 Infiltration Coefficient Side (m/hr) 0.00000 Depth (m) Area (m²) 0.000

Depth (m)

Area (m²)

2.000

499.7

201.3

Cellular Storage 27.800 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.01800 Porosity 0.95 Infiltration Coefficient Side (m/hr) 0.01800 Depth (m) Area (m²) 0.000

1872.0

Inf. Area (m²) 1872.0

Depth (m) Area (m²) 1.200

1872.0

Inf. Area (m²) 2107.2

Depth (m) Area (m²) 1.201

0.0

Inf. Area (m²) 2107.2

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 10 Basin and ... Micro Drainage

Page 3 North Norwich Network 10 Basin and Blanket Designed by CMB Checked by Network W.12.6.1

1 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Return Climate Period Change

Storm

10.000 15 10.001 15 10.002 15 10.003 15 10.004 15 10.005 15 11.000 15 11.001 15 12.000 15 12.001 15 11.002 15 11.003 15 13.000 15 13.001 15 13.002 15 13.003 15 13.004 15 10.006 480

PN 10.000 10.001 10.002 10.003 10.004 10.005 11.000 11.001 12.000 12.001 11.002 11.003 13.000 13.001 13.002 13.003 13.004 10.006

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30

Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

29.723 29.462 29.236 28.816 28.745 28.716 30.672 30.239 29.853 29.794 29.746 29.655 29.401 28.973 28.853 28.713 28.561 28.031

-0.205 -0.172 -0.146 -0.314 -0.231 -0.141 -0.133 -0.147 -0.385 -0.312 -0.261 -0.176 -0.209 -0.301 -0.265 -0.223 -0.193 -2.569

First X Surcharge 100/15 30/15 30/15 100/15 30/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter

Flooded Pipe Volume Flow / O'flow Flow (mÂł) Cap. (l/s) (l/s) Status 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.21 0.37 0.52 0.25 0.40 0.81 0.32 0.50 0.11 0.24 0.44 0.78 0.20 0.23 0.34 0.49 0.72 0.00

ÂŠ1982-2011 Micro Drainage Ltd

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

14.1 24.9 35.7 52.4 66.5 81.2 12.6 34.8 23.1 47.6 92.0 94.1 14.1 34.3 51.8 74.9 87.6 0.0

OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 10 Basin and ... Micro Drainage

Page 4 North Norwich Network 10 Basin and Blanket Designed by CMB Checked by Network W.12.6.1

30 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Return Climate Period Change

Storm

10.000 15 10.001 15 10.002 15 10.003 15 10.004 15 10.005 15 11.000 15 11.001 15 12.000 15 12.001 15 11.002 15 11.003 15 13.000 15 13.001 15 13.002 15 13.003 15 13.004 15 10.006 960

PN 10.000 10.001 10.002 10.003 10.004 10.005 11.000 11.001 12.000 12.001 11.002 11.003 13.000 13.001 13.002 13.003 13.004 10.006

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30

Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30

0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

29.786 29.652 29.478 29.084 29.024 28.977 30.865 30.631 30.105 30.087 30.051 29.838 29.460 29.203 29.157 29.043 28.755 28.426

-0.142 0.018 0.096 -0.045 0.048 0.120 0.060 0.245 -0.133 -0.019 0.044 0.007 -0.150 -0.071 0.039 0.107 0.001 -2.174

First X Surcharge 100/15 30/15 30/15 100/15 30/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter

Flooded Pipe Volume Flow / O'flow Flow (m³) Cap. (l/s) (l/s) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.50 0.83 1.17 0.60 1.06 2.22 0.76 1.19 0.27 0.54 1.04 1.93 0.46 0.56 0.80 1.17 1.79 0.00

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

34.6 56.3 79.7 125.4 175.4 223.8 29.4 82.3 55.1 107.3 218.8 234.6 31.6 85.4 122.4 178.3 217.8 0.0

Status OK SURCHARGED SURCHARGED OK SURCHARGED SURCHARGED SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED SURCHARGED OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 10 Basin and ... Micro Drainage

Page 5 North Norwich Network 10 Basin and Blanket Designed by CMB Checked by Network W.12.6.1

100 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Return Climate Period Change

Storm

10.000 15 10.001 15 10.002 15 10.003 15 10.004 15 10.005 15 11.000 15 11.001 15 12.000 15 12.001 15 11.002 15 11.003 15 13.000 15 13.001 15 13.002 15 13.003 15 13.004 15 10.006 1440

PN 10.000 10.001 10.002 10.003 10.004 10.005 11.000 11.001 12.000 12.001 11.002 11.003 13.000 13.001 13.002 13.003 13.004 10.006

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30

Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

+30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

31.115 30.976 30.524 29.594 29.429 29.283 32.660 32.170 30.929 30.896 30.788 30.087 30.392 30.255 30.137 29.784 28.965 28.946

1.187 1.342 1.142 0.464 0.453 0.426 1.855 1.784 0.691 0.790 0.781 0.256 0.782 0.981 1.019 0.848 0.211 -1.654

First X Surcharge 100/15 30/15 30/15 100/15 30/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter

Flooded Pipe Volume Flow / O'flow Flow (m³) Cap. (l/s) (l/s) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.68 1.29 1.86 0.96 1.72 3.77 1.08 1.79 0.39 1.01 1.81 3.39 0.63 0.84 1.30 1.97 3.08 0.00

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

46.4 88.0 127.0 199.5 284.0 379.8 41.8 124.4 79.8 201.1 380.4 411.7 43.7 126.8 198.2 300.7 374.1 0.0

Status SURCHARGED SURCHARGED FLOOD RISK SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED FLOOD RISK SURCHARGED SURCHARGED OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 18.06.2012 File 2012.08.10 - Network 10 Boreholes ... Micro Drainage

Page 1 North Norwich Network 10 Boreholes and Basin Designed by CMB Checked by Network W.12.6.1 Existing Network Details for Storm

* - Indicates pipe has been modified outside of System 1 PN

Length (m)

Fall (m)

10.000 10.001 10.002 10.003 10.004 10.005

70.000 60.000 60.000 70.000 20.000 10.000

0.294 0.252 0.252 0.154 0.044 0.026

238.0 238.0 238.1 454.5 454.5 384.6

0.102 0.102 0.102 0.195 0.195 0.195

4.00 0.00 0.00 0.00 0.00 0.00

0.600 0.600 0.600 0.600 0.600 0.600

o o o o o o

300 300 300 525 525 450

11.000 70.000 0.419 11.001 90.000 0.378

167.1 238.1

0.091 0.193

4.00 0.600 0.00 0.600

o o

225 300

12.000 60.000 0.132 12.001 45.000 0.099

454.5 454.5

0.168 0.261

4.00 0.600 0.00 0.600

o o

525 525

11.002 80.000 0.176 11.003 10.000 0.022

454.5 454.5

0.193 0.102

0.00 0.600 0.00 0.600

o o

525 525

13.000 13.001 13.002 13.003 13.004

238.1 384.6 384.6 384.6 454.5

0.094 0.187 0.187 0.280 0.186

4.00 0.00 0.00 0.00 0.00

o o o o o

300 450 450 450 525

80.000 60.000 70.000 70.000 10.000

0.336 0.156 0.182 0.182 0.022

Slope (1:X)

I.Area T.E. (ha) (mins)

* 10.006 10.000 0.001 10000.0 0.000 PN US/MH US/CL US/IL US DS/CL Name (m) (m) C.Depth (m) (m) 10.000 10.001 10.002 10.003 10.004 10.005

1 2 3 4 5 6

11.000 11.001

0.00 0.600 o 100 DS/IL DS Ctrl US/MH (m) C.Depth (mm) (m) 1200 1200 1050 1500 1500 1500

7 33.230 30.580 8 32.620 30.086

2.425 32.620 30.161 2.234 32.000 29.708

2.234 1.992

1200 1200

12.000 12.001

9 31.710 29.713 10 31.670 29.581

1.472 31.670 29.581 1.564 32.000 29.482

1.564 1.993

1500 1500

11.002 11.003

11 32.000 29.482 12 31.200 29.306

1.993 31.200 29.306 1.369 31.000 29.284

1.369 1.191

1500 1500

13.000 13.001 13.002 13.003 13.004

13 14 15 16 17

1.200 1.526 1.282 1.394 2.146

28.974 28.668 28.486 28.304 28.207

1.526 1.282 1.394 2.146 2.268

1050 1350 1350 1350 1500

0.400 31.000 30.499

0.401

1500

29.310 28.824 28.668 28.486 28.229

18 31.000 30.500

2.142 1.766 1.438 1.200 2.024 2.143

0.600 0.600 0.600 0.600 0.600

1.766 1.438 1.200 2.024 2.068 2.169

30.810 30.800 30.400 30.330 30.900

29.628 29.334 29.082 28.605 28.451 28.407

HYD DIA SECT (mm)

29.334 29.082 28.830 28.451 28.407 28.381

* 10.006

32.070 31.400 30.820 30.330 31.000 31.000

k (mm)

31.400 30.820 30.330 31.000 31.000 31.000

30.800 30.400 30.330 30.900 31.000

Free Flowing Outfall Details for Storm Outfall C. Level I. Level Min D,L W Outfall Name (m) (m) I. Level (mm) (mm) Pipe Number (m) 10.006

31.000

30.499

0.000

0.500 Inlet Coeffiecient 0.800 0.000 Flow per Person per Day (l/per/day) 0.000 0.000 Run Time (mins) 60 2.000 Output Interval (mins) 1

Number of Input Hydrographs 0 Number of Offline Controls 1 Number of Time/Area Diagrams 0 Number of Online Controls 0 Number of Storage Structures 1 Number of Real Time Controls 0 Synthetic Rainfall Details FSR M5-60 (mm) 20.000 Cv (Summer) 0.750 Rainfall Model Return Period (years) 2 Ratio R 0.405 Cv (Winter) 0.840 Region England and Wales Profile Type Summer Storm Duration (mins) 30

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 18.06.2012 File 2012.08.10 - Network 10 Boreholes ... Micro Drainage

Page 2 North Norwich Network 10 Boreholes and Basin Designed by CMB Checked by Network W.12.6.1 Offline Controls for Storm

Depth/Flow Relationship Manhole: 18, DS/PN: 10.006, Loop to PN: None Invert Level (m) 24.500 Depth (m) Flow (l/s) 0.100 0.200 0.300 0.400

0.8000 0.8000 0.8000 0.8000

Depth (m) 0.500 0.600 0.800 1.000

Flow (l/s) Depth (m) 1.6000 1.6000 1.6000 1.6000

1.200 1.400 1.600 1.800

Flow (l/s) 1.6000 2.4000 2.4000 2.4000

Depth (m) Flow (l/s) 2.000 2.200 2.400 2.600

ÂŠ1982-2011 Micro Drainage Ltd

2.4000 2.4000 4.8000 4.8000

Depth (m) 3.000 3.500 4.000 4.500

Flow (l/s) Depth (m) 4.8000 4.8000 4.8000 12.8000

5.000 5.500 6.000 6.500

Flow (l/s) 12.8000 12.8000 12.8000 12.8000

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 18.06.2012 File 2012.08.10 - Network 10 Boreholes ... Micro Drainage

Page 3 North Norwich Network 10 Boreholes and Basin Designed by CMB Checked by Network W.12.6.1 Storage Structures for Storm

Infiltration Basin Manhole: 18, DS/PN: 10.006 28.946 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.00000 Porosity 1.00 Infiltration Coefficient Side (m/hr) 0.00000 Depth (m) Area (m²) 0.000

1778.4

Depth (m) Area (m²) 0.053

1778.4

Depth (m) Area (m²) 0.054

201.3

Depth (m)

Area (m²)

2.054

499.7

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 18.06.2012 File 2012.08.10 - Network 10 Boreholes ... Micro Drainage

Page 4 North Norwich Network 10 Boreholes and Basin Designed by CMB Checked by Network W.12.6.1

10 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

PN 10.000 10.001 10.002 10.003 10.004 10.005 11.000 11.001 12.000 12.001 11.002 11.003 13.000 13.001 13.002 13.003 13.004 10.006

Return Climate Period Change

Storm 360 360 360 360 360 360 15 15 360 360 360 360 360 360 360 360 360 360

Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

PN 10.000 10.001 10.002 10.003 10.004 10.005 11.000 11.001 12.000 12.001 11.002 11.003 13.000 13.001 13.002 13.003 13.004 10.006

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 10 0

10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10

US/MH Name

Water Level (m)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

30.262 30.262 30.260 30.258 30.258 30.257 30.716 30.422 30.259 30.259 30.259 30.257 30.260 30.260 30.260 30.259 30.257 30.256

First X Surcharge

First Y Flood

First Z O/F Lvl Overflow Act. Exc.

0% 10/60 Winter 0% 10/30 Summer 0% 0% 10/1440 Winter 0% 10/1440 Winter 0% 10/1440 Winter 0% 0% 0% 10/240 Winter 0% 10/120 Winter 0% 10/120 Winter 0% 10/15 Winter 0% 10/30 Summer 0% 0% 0% 10/2880 Summer 0% 10/960 Summer 0% Flooded Pipe Surch'ed Volume Flow / O'flow Flow Depth (m) (m³) Cap. (l/s) (l/s) 0.334 0.628 0.878 1.128 1.282 1.400 -0.089 0.036 0.021 0.153 0.252 0.426 0.650 0.986 1.142 1.323 1.503 -0.344

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.05 0.10 0.13 0.06 0.11 0.25 0.63 1.01 0.03 0.08 0.16 0.29 0.04 0.06 0.10 0.15 0.24 0.00

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 12.8

3.7 6.9 8.8 13.2 18.8 25.1 24.4 69.9 6.2 15.6 32.6 34.9 3.1 8.8 14.6 23.6 29.5 0.0

Status SURCHARGED SURCHARGED SURCHARGED FLOOD RISK SURCHARGED SURCHARGED OK SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED FLOOD RISK FLOOD RISK SURCHARGED OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 1 North Norwich Network 10 Infiltration Basin Designed by CMB Checked by Source Control W.12.6.1

Cascade Summary of Results for 2012.08.10 - Network 10 Infiltration Basin.srcx Outflow To Overflow To

Upstream Structures 2012.08.10 - Network 10 Infiltration Blanket.srcx

(None)

Half Drain Time : 359 minutes. Storm Event

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200

min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

Max Level (m)

15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200 8640 10080 15 30 60 120 180 240 360 480 600 720 960 1440 2160 2880 4320 5760 7200

29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.000 29.066 29.106 29.000 29.000 29.000 29.000 Storm Event min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min min

Max Max Max Status Depth Infiltration Volume (m) (l/s) (mÂł) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.066 0.106 0.000 0.000 0.000 0.000

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 13.6 0.5 22.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Rain Time-Peak (mm/hr) (mins)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1416 2084 0 0 0 0

ÂŠ1982-2011 Micro Drainage Ltd

O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O

K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 2 North Norwich Network 10 Infiltration Basin Designed by CMB Checked by Source Control W.12.6.1

Cascade Summary of Results for 2012.08.10 - Network 10 Infiltration Basin.srcx Storm Event

Max Level (m)

Max Status Max Max Depth Infiltration Volume (l/s) (m³) (m)

8640 min Winter 29.000 0.000 0.0 0.0 10080 min Winter 29.000 0.000 0.0 0.0 Storm Rain Time-Peak Event (mm/hr) (mins) 8640 min Winter 10080 min Winter

1.035 0.912

0 0

O K O K

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 3 North Norwich Network 10 Infiltration Basin Designed by CMB Checked by Source Control W.12.6.1

Cascade Rainfall Details for 2012.08.10 - Network 10 Infiltration Basin.srcx FSR Ratio R 0.405 Cv (Winter) 0.840 Rainfall Model Return Period (years) 100 Summer Storms Yes Shortest Storm (mins) 15 Region England and Wales Winter Storms Yes Longest Storm (mins) 10080 M5-60 (mm) 20.000 Cv (Summer) 0.750 Climate Change % +30 Time / Area Diagram Total Area (ha) 0.000 Time (mins)

Area (ha)

0-4 0.000

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Cascade.casx Micro Drainage

Page 4 North Norwich Network 10 Infiltration Basin Designed by CMB Checked by Source Control W.12.6.1

Cascade Model Details for 2012.08.10 - Network 10 Infiltration Basin.srcx Storage is Online Cover Level (m) 31.000 Infiltration Basin Structure 29.000 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.01800 Porosity 1.00 Infiltration Coefficient Side (m/hr) 0.00000 Depth (m) Area (m²) 0.000

201.3

Depth (m)

Area (m²)

2.000

499.7

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 1 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1 Existing Network Details for Storm

* - Indicates pipe has been modified outside of System 1 PN

Length (m)

Fall (m)

Slope (1:X)

30.000 50.000 0.130 30.001 60.000 0.156

385.0 385.0

0.141 0.141

4.00 0.600 0.00 0.600

o o

450 450

31.000 60.000 0.252

238.0

0.262

4.00 0.600

300

30.002 43.000 0.095

455.0

0.318

0.00 0.600

525

32.000 56.500 0.147 32.001 64.000 0.141

384.4 453.9

0.360 0.360

4.00 0.600 0.00 0.600

o o

450 525

33.000 90.000 0.234

384.6

0.341

4.00 0.600

450

30.003 30.004 30.005 30.006

0.049 0.082 0.060 0.108

826.5 835.4 833.0 833.0

0.271 0.315 0.246 0.146

0.00 0.00 0.00 0.00

0.600 0.600 0.600 0.600

o o o o

825 825 825 825

34.000 70.000 0.182 34.001 50.000 0.110 34.002 50.000 0.110

384.6 455.0 455.0

0.352 0.389 0.086

4.00 0.600 0.00 0.600 0.00 0.600

o o o

450 525 525

35.000 60.000 0.252

238.1

0.097

4.00 0.600

300

34.003 55.000 0.121

455.0

0.134

0.00 0.600

525

30.007 50.000 0.047 1063.8 30.008 55.000 0.052 1057.7

0.175 0.138

0.00 0.600 0.00 0.600

o o

975 975

36.000 36.001 36.002 36.003

40.500 68.500 50.000 90.000

k (mm)

HYD DIA SECT (mm)

0.210 0.210 0.252 0.252

238.1 238.1 238.0 242.1

0.048 0.048 0.048 0.048

4.00 0.00 0.00 0.00

0.600 0.600 0.600 0.600

o o o o

300 300 300 300

30.009 50.000 0.833 30.010 50.000 0.833

60.0 60.0

0.138 0.089

0.00 0.600 0.00 0.600

o o

975 975

37.000 90.000 0.378

238.1

0.184

4.00 0.600

300

US/MH Name

50.000 50.000 60.000 61.000

I.Area T.E. (ha) (mins)

US/CL (m)

US/IL (m)

US C.Depth (m)

DS/CL (m)

DS/IL (m)

DS Ctrl US/MH C.Depth (mm) (m)

30.000 30.001

1 32.520 29.511 2 31.700 29.381

2.559 31.700 29.381 1.869 31.350 29.225

1.869 1.675

1350 1350

31.000

3 31.900 29.628

1.972 31.350 29.376

1.674

1200

30.002

4 31.350 29.150

1.675 31.290 29.056

1.709

1500

32.000 32.001

5 31.800 29.418 6 31.290 29.196

1.932 31.290 29.271 1.569 31.290 29.055

1.569 1.710

1350 1500

33.000

7 31.250 29.366

1.434 31.290 29.132

1.708

1200

1.710 1.519 1.401 1.361

28.706 28.624 28.564 28.456

1.519 1.401 1.361 1.369

1800 1800 1800 1800

30.003 30.004 30.005 30.006

9 10 11 12

31.290 31.050 30.850 30.750

34.000 34.001 34.002

13 31.450 29.352 14 31.550 29.095 15 31.300 28.985

1.648 31.550 29.170 1.930 31.300 28.985 1.790 31.150 28.875

1.930 1.790 1.750

1200 1500 1500

35.000

16 31.700 29.354

2.046 31.150 29.102

1.748

1200

34.003

17 31.150 28.875

1.750 30.650 28.754

1.371

1500

30.007 30.008

18 30.650 28.304 19 30.600 28.257

1.371 30.600 28.257 1.368 30.600 28.205

1.368 1.420

1800 1800

36.000 36.001 36.002 36.003

20 21 23 24

1.200 1.710 2.130 1.772

29.640 29.430 29.178 28.926

1.710 2.130 1.772 1.374

1200 1200 1200 1200

30.009 30.010

25 30.600 28.205 26 29.600 27.372

1.420 29.600 27.372 1.253 28.800 26.539

1.253 1.286

1800 1800

37.000

27 29.100 27.593

1.207 28.800 27.215

1.285

1200

31.350 31.650 31.860 31.250

28.755 28.706 28.624 28.564

29.850 29.640 29.430 29.178

31.050 30.850 30.750 30.650

31.650 31.860 31.250 30.600

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 2 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1 Existing Network Details for Storm

Length (m)

Fall (m)

Slope (1:X)

I.Area T.E. (ha) (mins)

k (mm)

HYD DIA SECT (mm)

30.011 20.000 0.019 1052.6

0.184

0.00 0.600

975

38.000 70.000 0.182 38.001 60.000 0.156 38.002 70.000 0.182

385.0 384.6 384.6

0.234 0.333 0.156

4.00 0.600 0.00 0.600 0.00 0.600

o o o

450 450 450

39.000 90.000 0.378 39.001 90.000 0.378

238.1 238.1

0.056 0.150

4.00 0.600 0.00 0.600

o o

300 300

38.003 40.000 0.070 38.004 70.000 0.126

571.4 556.0

0.334 0.184

0.00 0.600 0.00 0.600

o o

600 600

40.000 70.000 0.294

238.1

0.209

4.00 0.600

300

38.005 50.000 0.070 38.006 50.000 0.070

714.3 714.0

0.293 0.108

0.00 0.600 0.00 0.600

o o

750 750

41.000 60.000 0.252

238.1

0.198

4.00 0.600

300

38.007 50.000 0.125 38.008 50.000 0.125

401.0 401.0

0.293 0.095

0.00 0.600 0.00 0.600

o o

900 900

42.000 70.000 0.182 42.001 60.000 0.156 42.002 15.000 0.033

384.6 384.6 455.0

0.272 0.178 0.305

4.00 0.600 0.00 0.600 0.00 0.600

o o o

450 450 525

43.000 60.000 0.156 43.001 60.000 0.156

384.6 384.6

0.084 0.211

4.00 0.600 0.00 0.600

o o

450 450

42.003 35.000 0.063 42.004 60.000 0.108

556.0 556.0

0.000 0.127

0.00 0.600 0.00 0.600

o o

600 600

0.523 0.938 0.926 0.923

64.0 64.0 54.0 54.2

0.191 0.191 0.269 0.178

4.00 0.00 0.00 0.00

0.600 0.600 0.600 0.600

o o o o

300 300 450 450

45.000 50.000 0.210

238.0

0.077

4.00 0.600

300

44.000 44.001 44.002 44.003

US/MH Name

33.500 60.000 50.000 50.000

US/CL (m)

US/IL (m)

US C.Depth (m)

DS/CL (m)

DS/IL (m)

DS Ctrl US/MH C.Depth (mm) (m)

30.011

28 28.800 26.539

1.286 28.800 26.520

1.305

1800

38.000 38.001 38.002

29 31.300 28.605 30 31.250 28.423 31 30.850 28.267

2.245 31.250 28.423 2.377 30.850 28.267 2.133 30.780 28.085

2.377 2.133 2.245

1350 1350 1350

39.000 39.001

32 31.250 28.992 33 30.950 28.614

1.958 30.950 28.614 2.036 30.780 28.236

2.036 2.244

1200 1200

38.003 38.004

34 30.780 27.935 35 30.600 27.865

2.245 30.600 27.865 2.135 30.350 27.739

2.135 2.011

1500 1500

40.000

36 30.600 28.334

1.966 30.350 28.040

2.010

1200

38.005 38.006

37 30.350 27.589 38 29.800 27.519

2.011 29.800 27.519 1.531 29.400 27.449

1.531 1.201

1800 1800

41.000

39 29.900 28.152

1.448 29.400 27.900

1.200

1200

38.007 38.008

40 29.400 27.299 41 29.350 27.175

1.201 29.350 27.175 1.275 29.550 27.050

1.275 1.600

1800 1800

42.000 42.001 42.002

45 30.250 28.089 46 30.250 27.907 45 30.460 27.676

1.711 30.250 27.907 1.893 30.460 27.751 2.259 30.430 27.643

1.893 2.259 2.262

1350 1350 1500

43.000 43.001

47 29.680 28.030 48 29.800 27.874

1.200 29.800 27.874 1.476 30.430 27.718

1.476 2.262

1200 1350

42.003 42.004

49 30.430 27.568 50 30.250 27.505

2.262 30.250 27.505 2.145 30.250 27.397

2.145 2.253

1500 1500

44.000 44.001 44.002 44.003

49 51 52 53

1.200 1.123 1.261 1.587

31.577 30.639 29.563 28.640

1.123 1.261 1.587 1.910

1050 1050 1350 1350

45.000

55 30.500 29.000

1.200 31.000 28.790

1.910

1050

33.600 33.000 32.200 31.600

32.100 31.577 30.489 29.563

33.000 32.200 31.600 31.000

ÂŠ1982-2011 Micro Drainage Ltd

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 3 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1 Existing Network Details for Storm

Length (m)

Fall (m)

44.004 70.000 1.094

Slope (1:X)

I.Area T.E. (ha) (mins)

64.0

0.282

k (mm)

HYD DIA SECT (mm)

0.00 0.600

600 900

42.005 42.500 0.046

923.9

0.231

0.00 0.600

38.009 50.000 0.045 38.010 50.000 0.045 38.011 20.000 0.018

1111.0 1111.0 1111.0

0.326 0.199 0.199

0.00 0.600 0.00 0.600 0.00 0.600

o 1050 o 1050 o 1050

238.0 238.0 385.0 54.2 384.6

0.101 0.101 0.101 0.104 0.000

4.00 0.00 0.00 0.00 0.00

o o o o o

46.000 46.001 46.002 46.003 46.004

51.000 71.000 85.000 65.000 20.000

0.214 0.298 0.221 1.199 0.052

* 30.012 10.000 0.001 10000.0 0.000 PN US/MH US/CL US/IL US DS/CL Name (m) (m) C.Depth (m) (m)

0.600 0.600 0.600 0.600 0.600

300 300 450 450 450

0.00 0.600 o 100 DS/IL DS Ctrl US/MH (m) C.Depth (mm) (m)

44.004

55 31.000 28.490

1.910 30.250 27.396

2.254

1500

42.005

56 30.250 27.096

2.254 29.550 27.050

1.600

1800

38.009 38.010 38.011

54 29.550 26.900 55 29.500 26.855 56 29.200 26.810

1.600 29.500 26.855 1.595 29.200 26.810 1.340 28.800 26.792

1.595 1.340 0.958

1800 1800 1800

46.000 46.001 46.002 46.003 46.004

57 58 59 60 60

1.968 1.692 2.081 1.201 1.200

30.018 29.719 29.349 28.150 28.098

1.692 2.081 1.201 1.200 0.252

1200 1200 1350 1350 1350

0.480 28.800 28.219

0.481

1800

* 30.012

32.500 32.010 32.100 31.000 29.800

30.232 30.018 29.569 29.349 28.150

61 28.800 28.220

32.010 32.100 31.000 29.800 28.800

Free Flowing Outfall Details for Storm Outfall C. Level I. Level Min D,L W Outfall Name (m) (m) I. Level (mm) (mm) Pipe Number (m) 30.012

28.800

28.219

0.000

0.500 Inlet Coeffiecient 0.800 0.000 Flow per Person per Day (l/per/day) 0.000 0.000 Run Time (mins) 60 2.000 Output Interval (mins) 1

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 4 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1 Offline Controls for Storm

Depth/Flow Relationship Manhole: 61, DS/PN: 30.012, Loop to PN: None Invert Level (m) 22.500 Depth (m) Flow (l/s) 0.100 0.200 0.300 0.400

3.0000 3.0000 3.0000 3.0000

Depth (m) 0.500 0.600 0.800 1.000

Flow (l/s) Depth (m) 6.0000 6.0000 6.0000 6.0000

1.200 1.400 1.600 1.800

Flow (l/s) 6.0000 9.0000 9.0000 9.0000

Depth (m) Flow (l/s) 2.000 2.200 2.400 2.600

ÂŠ1982-2011 Micro Drainage Ltd

9.0000 9.0000 18.0000 18.0000

Depth (m) 3.000 3.500 4.000 4.500

Flow (l/s) Depth (m) 18.0000 18.0000 18.0000 48.0000

5.000 5.500 6.000 6.500

Flow (l/s) 48.0000 48.0000 48.0000 48.0000

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 5 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1 Storage Structures for Storm

Complex Manhole: 61, DS/PN: 30.012

Infiltration Basin 26.520 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.00036 Porosity 1.00 Infiltration Coefficient Side (m/hr) 0.00036 Depth (m) Area (m²) 0.000

Depth (m)

Area (m²)

2.000

1120.0

250.0

Cellular Storage 26.520 Safety Factor 2.0 Invert Level (m) Infiltration Coefficient Base (m/hr) 0.00036 Porosity 0.95 Infiltration Coefficient Side (m/hr) 0.00036 Depth (m) Area (m²) 0.000

4140.0

Inf. Area (m²) 4140.0

Depth (m) Area (m²) 1.500

4140.0

Inf. Area (m²) 4644.0

Depth (m) Area (m²) 1.501

0.0

Inf. Area (m²) 4644.0

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 6 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

1 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Return Climate Period Change

Storm

30.000 15 30.001 15 31.000 15 30.002 15 32.000 15 32.001 15 33.000 15 30.003 15 30.004 15 30.005 15 30.006 15 34.000 15 34.001 15 34.002 15 35.000 15 34.003 15 30.007 30 30.008 30 36.000 15 36.001 15 36.002 15 36.003 15 30.009 30 30.010 30 37.000 15 30.011 30 38.000 15 38.001 15 38.002 15 39.000 15 39.001 15 38.003 15 38.004 15 40.000 15 38.005 15 38.006 15 41.000 15 38.007 30 38.008 30 42.000 15 42.001 15 42.002 15 43.000 15 43.001 15 42.003 15 42.004 15 44.000 15 44.001 15 44.002 15 44.003 15 45.000 15 44.004 15 42.005 30 38.009 30 38.010 30 38.011 30 46.000 15 46.001 15 46.002 15 46.003 15 46.004 15 30.012 360

PN 30.000 30.001 31.000 30.002 32.000

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30

Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter Winter

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5

29.625 29.529 29.791 29.423 29.604

-0.336 -0.302 -0.137 -0.252 -0.264

First X Surcharge 100/15 100/15 30/15 30/15 100/15 30/15 100/15 30/15 30/15 30/15 30/30 100/15 30/15 30/15 100/15 30/15 100/15 100/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 Summer

100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 100/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 30/15

Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 30/15 30/15 30/15 100/15 100/15 100/15

Winter Summer Summer Summer Summer Summer Summer

100/15 Summer 114 Flooded Pipe Volume Flow / O'flow Flow (mÂł) Cap. (l/s) (l/s) Status 0.000 0.000 0.000 0.000 0.000

0.13 0.23 0.56 0.52 0.34

ÂŠ1982-2011 Micro Drainage Ltd

0.0 20.0 0.0 34.3 0.0 38.1 0.0 102.8 0.0 50.6

OK OK OK OK OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 7 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

1 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

PN 32.001 33.000 30.003 30.004 30.005 30.006 34.000 34.001 34.002 35.000 34.003 30.007 30.008 36.000 36.001 36.002 36.003 30.009 30.010 37.000 30.011 38.000 38.001 38.002 39.000 39.001 38.003 38.004 40.000 38.005 38.006 41.000 38.007 38.008 42.000 42.001 42.002 43.000 43.001 42.003 42.004 44.000 44.001 44.002 44.003 45.000 44.004 42.005 38.009 38.010 38.011 46.000 46.001 46.002 46.003 46.004 30.012

US/MH Name

Water Level (m)

Surch'ed Depth (m)

6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 45 46 45 47 48 49 50 49 51 52 53 55 55 56 54 55 56 57 58 59 60 60 61

29.441 29.543 29.269 29.201 29.103 28.997 29.534 29.348 29.250 29.447 29.154 28.842 28.737 29.915 29.727 29.533 29.294 28.438 27.606 27.724 27.204 28.750 28.638 28.502 29.061 28.738 28.273 28.178 28.476 27.974 27.866 28.290 27.701 27.651 28.246 28.099 27.980 28.119 28.022 27.884 27.797 32.196 31.706 30.628 29.718 29.083 28.665 27.655 27.622 27.568 27.507 30.328 30.146 29.719 29.448 28.329 26.860

-0.280 -0.273 -0.311 -0.330 -0.346 -0.392 -0.268 -0.272 -0.260 -0.207 -0.247 -0.438 -0.495 -0.235 -0.213 -0.197 -0.184 -0.742 -0.741 -0.169 -0.311 -0.305 -0.235 -0.215 -0.231 -0.176 -0.262 -0.287 -0.158 -0.366 -0.403 -0.162 -0.499 -0.424 -0.293 -0.258 -0.221 -0.361 -0.302 -0.284 -0.308 -0.204 -0.170 -0.311 -0.295 -0.217 -0.425 -0.342 -0.328 -0.337 -0.353 -0.204 -0.172 -0.300 -0.351 -0.271 -1.460

Flooded Pipe Volume Flow / O'flow Flow (m³) Cap. (l/s) (l/s) Status 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.43 0.32 0.55 0.52 0.54 0.48 0.32 0.44 0.45 0.21 0.55 0.49 0.48 0.10 0.18 0.25 0.32 0.13 0.13 0.40 1.03 0.21 0.44 0.51 0.11 0.36 0.52 0.52 0.46 0.42 0.43 0.43 0.23 0.23 0.25 0.36 0.63 0.08 0.23 0.47 0.47 0.22 0.39 0.21 0.26 0.17 0.19 0.44 0.51 0.51 1.02 0.21 0.38 0.22 0.11 0.33 0.00

88.1 48.9 239.8 245.7 244.1 232.0 48.8 88.2 91.4 14.3 111.6 303.4 303.9 6.8 12.0 16.7 21.5 315.8 318.0 27.5 326.3 32.3 66.9 78.3 7.5 24.8 126.9 136.7 31.3 164.6 167.9 29.7 186.2 185.3 37.7 54.9 84.6 11.7 34.4 114.1 120.7 28.6 51.0 82.8 103.4 11.5 145.7 220.0 378.8 376.8 381.4 14.4 26.3 34.7 44.4 44.1 0.0

OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 8 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

30 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Return Climate Period Change

Storm

30.000 15 30.001 15 31.000 15 30.002 15 32.000 15 32.001 15 33.000 15 30.003 15 30.004 15 30.005 15 30.006 30 34.000 15 34.001 15 34.002 15 35.000 15 34.003 15 30.007 15 30.008 30 36.000 15 36.001 15 36.002 15 36.003 15 30.009 30 30.010 30 37.000 15 30.011 60 38.000 15 38.001 15 38.002 15 39.000 15 39.001 15 38.003 15 38.004 15 40.000 15 38.005 30 38.006 30 41.000 15 38.007 30 38.008 30 42.000 15 42.001 15 42.002 15 43.000 15 43.001 15 42.003 15 42.004 15 44.000 15 44.001 15 44.002 15 44.003 15 45.000 15 44.004 15 42.005 30 38.009 30 38.010 30 38.011 60 46.000 15 46.001 15 46.002 15 46.003 15 46.004 15 30.012 480

PN 30.000 30.001 31.000 30.002 32.000

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30

30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30

0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5

29.811 29.793 30.170 29.753 29.850

-0.150 -0.038 0.242 0.078 -0.018

First X Surcharge 100/15 100/15 30/15 30/15 100/15 30/15 100/15 30/15 30/15 30/15 30/30 100/15 30/15 30/15 100/15 30/15 100/15 100/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 Summer

100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 100/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 30/15

Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 30/15 30/15 30/15 100/15 100/15 100/15

Winter Summer Summer Summer Summer Summer Summer

100/15 Summer 114 Flooded Pipe Volume Flow / O'flow Flow (mÂł) Cap. (l/s) (l/s) 0.000 0.000 0.000 0.000 0.000

0.32 0.48 1.30 1.15 0.79

ÂŠ1982-2011 Micro Drainage Ltd

Status

0.0 48.1 OK 0.0 72.0 OK 0.0 88.4 SURCHARGED 0.0 227.6 SURCHARGED 0.0 119.6 OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 9 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

30 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

US/MH Name

Water Level (m)

Surch'ed Depth (m)

6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 45 46 45 47 48 49 50 49 51 52 53 55 55 56 54 55 56 57 58 59 60 60 61

29.767 29.712 29.644 29.578 29.473 29.397 29.768 29.686 29.591 29.508 29.462 29.279 29.194 29.954 29.792 29.615 29.392 28.549 27.718 27.829 27.514 29.080 29.040 28.875 29.103 28.873 28.611 28.519 28.689 28.339 28.269 28.469 28.121 28.075 28.418 28.365 28.269 28.268 28.257 28.222 28.171 32.259 31.899 30.735 29.852 29.135 28.805 28.075 28.029 27.946 27.860 30.391 30.267 29.829 29.514 28.473 27.377

0.046 -0.104 0.064 0.047 0.024 0.008 -0.034 0.066 0.081 -0.146 0.061 0.000 -0.038 -0.196 -0.148 -0.115 -0.085 -0.631 -0.629 -0.064 0.000 0.025 0.167 0.158 -0.189 -0.041 0.076 0.054 0.055 0.000 0.000 0.017 -0.078 0.000 -0.121 0.008 0.068 -0.212 -0.067 0.054 0.066 -0.141 0.022 -0.204 -0.161 -0.165 -0.285 0.079 0.079 0.041 0.000 -0.141 -0.051 -0.191 -0.285 -0.127 -0.943

Flooded Pipe Volume Flow / O'flow Flow (m³) Cap. (l/s) (l/s) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

1.02 0.72 1.26 1.20 1.23 1.03 0.76 1.07 1.07 0.49 1.25 1.05 1.00 0.25 0.48 0.66 0.85 0.27 0.27 0.95 2.07 0.49 1.00 1.16 0.27 0.88 1.19 1.17 1.06 0.93 0.94 1.05 0.53 0.54 0.59 0.83 1.51 0.19 0.55 1.04 1.00 0.55 1.01 0.57 0.71 0.42 0.53 1.07 1.27 1.29 2.18 0.52 0.95 0.58 0.28 0.86 0.00

210.9 111.1 549.4 566.0 557.8 504.3 115.7 215.6 215.2 33.4 255.1 647.7 628.8 16.8 32.5 45.4 57.5 655.7 660.7 65.8 654.4 75.6 151.8 177.2 18.5 61.0 290.5 307.0 72.7 362.1 365.5 71.5 426.9 439.0 90.0 125.8 203.2 28.3 82.6 252.8 259.4 70.1 133.4 226.5 285.5 28.2 410.9 528.3 942.0 953.1 814.4 35.3 65.3 89.0 115.4 114.6 0.0

Status SURCHARGED OK SURCHARGED SURCHARGED SURCHARGED SURCHARGED OK SURCHARGED SURCHARGED OK SURCHARGED OK OK OK OK OK OK OK OK OK OK SURCHARGED SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED SURCHARGED OK OK SURCHARGED OK OK OK SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED OK SURCHARGED OK OK OK OK SURCHARGED SURCHARGED SURCHARGED OK OK OK OK OK OK OK

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 10 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

100 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

ON Inertia Status OFF Margin for Flood Risk Warning (mm) 300.0 DTS Status Analysis Timestep Fine DVD Status OFF

Profile(s) Duration(s) (mins) Return Period(s) (years) Climate Change (%)

Summer and Winter 15, 30, 60, 120, 180, 240, 360, 480, 600, 720, 960, 1440, 2160, 2880, 4320, 5760, 7200, 8640, 10080 1, 30, 100 0, 0, 30 Return Climate Period Change

Storm

30.000 15 Winter 30.001 15 Winter 31.000 15 Winter 30.002 15 Winter 32.000 15 Winter 32.001 15 Winter 33.000 15 Winter 30.003 15 Winter 30.004 15 Winter 30.005 15 Winter 30.006 15 Winter 34.000 15 Winter 34.001 15 Winter 34.002 15 Winter 35.000 15 Winter 34.003 15 Winter 30.007 15 Winter 30.008 15 Winter 36.000 15 Winter 36.001 15 Winter 36.002 15 Winter 36.003 15 Winter 30.009 30 Winter 30.010 720 Winter 37.000 15 Winter 30.011 720 Winter 38.000 15 Winter 38.001 15 Winter 38.002 15 Winter 39.000 15 Winter 39.001 15 Winter 38.003 15 Winter 38.004 15 Winter 40.000 30 Winter 38.005 15 Winter 38.006 15 Winter 41.000 30 Winter 38.007 30 Winter 38.008 15 Winter 42.000 15 Winter 42.001 15 Winter 42.002 15 Winter 43.000 15 Winter 43.001 15 Winter 42.003 15 Winter 42.004 15 Winter 44.000 15 Winter 44.001 15 Winter 44.002 15 Winter 44.003 15 Winter 45.000 15 Winter 44.004 15 Winter 42.005 15 Winter 38.009 15 Winter 38.010 30 Winter 38.011 30 Winter 46.000 15 Winter 46.001 15 Winter 46.002 15 Winter 46.003 15 Winter 46.004 15 Winter 30.012 720 Winter

PN 30.000 30.001 31.000 30.002 32.000

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

+30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30% +30%

US/MH Name

Water Level (m)

Surch'ed Depth (m)

1 2 3 4 5

31.132 31.107 31.696 31.040 31.108

1.171 1.275 1.768 1.365 1.240

First X Surcharge 100/15 100/15 30/15 30/15 100/15 30/15 100/15 30/15 30/15 30/15 30/30 100/15 30/15 30/15 100/15 30/15 100/15 100/15

First Y First Z O/F Lvl Flood Overflow Act. Exc.

Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 Summer

100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 30/15 30/15 100/15 100/15 30/15 100/15 100/15 100/15 30/15 30/15 100/15 100/15 30/15 30/15 100/15 30/15

Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Summer Winter Summer Summer Summer Summer Summer Summer Summer

100/15 Summer 100/15 30/15 30/15 30/15 100/15 100/15 100/15

Winter Summer Summer Summer Summer Summer Summer

100/15 Summer 114 Flooded Volume Flow / O'flow (mÂł) Cap. (l/s) 0.000 0.000 0.000 0.000 0.000

0.44 0.80 1.86 1.91 1.21

ÂŠ1982-2011 Micro Drainage Ltd

0.0 0.0 0.0 0.0 0.0

Pipe Flow (l/s)

Status

66.0 121.2 127.1 379.7 181.5

SURCHARGED SURCHARGED FLOOD RISK SURCHARGED SURCHARGED

Peter Brett Associates LLP Caversham Bridge House Waterman Place Reading RG1 8DN Date 10.08.2012 File 2012.08.10 - Network 30 Basin Rev ... Micro Drainage

Page 11 North Norwich Network 30 Infiltration Designed by CMB Checked by Network W.12.6.1

100 year Return Period Summary of Critical Results by Maximum Level (Rank 1) for Storm

US/MH Name

Water Level (m)

Surch'ed Depth (m)

6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 45 46 45 47 48 49 50 49 51 52 53 55 55 56 54 55 56 57 58 59 60 60 61

31.011 30.888 30.799 30.654 30.355 30.091 31.003 30.766 30.400 30.097 30.056 29.631 29.382 29.989 29.887 29.799 29.574 28.735 28.098 28.449 28.096 30.934 30.884 30.581 30.335 30.305 30.002 29.793 29.557 29.361 29.170 29.140 28.980 28.873 29.725 29.633 29.417 29.357 29.344 29.297 29.167 33.308 32.997 30.822 30.147 29.228 29.199 28.884 28.760 28.447 28.121 30.956 30.797 29.927 29.562 28.629 28.095

1.290 1.072 1.219 1.123 0.906 0.702 1.201 1.146 0.890 0.443 0.656 0.351 0.150 -0.161 -0.053 0.069 0.096 -0.446 -0.249 0.556 0.582 1.879 2.011 1.864 1.043 1.391 1.467 1.328 0.923 1.022 0.901 0.688 0.780 0.798 1.186 1.276 1.216 0.877 1.020 1.129 1.062 0.908 1.121 -0.117 0.134 -0.072 0.109 0.888 0.810 0.543 0.262 0.424 0.480 -0.092 -0.236 0.029 -0.225

Flooded Volume Flow / O'flow (m³) Cap. (l/s) 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

1.66 1.07 2.20 2.09 2.21 1.93 1.14 1.77 1.90 0.73 2.24 2.10 2.02 0.42 0.75 0.94 1.19 0.57 0.09 1.43 0.71 0.68 1.65 1.90 0.36 1.08 1.95 1.93 1.26 1.69 1.68 1.24 0.94 0.94 0.84 1.31 2.49 0.26 0.80 1.81 1.75 0.76 1.46 0.85 1.08 0.68 0.78 2.01 2.33 2.34 4.73 0.81 1.50 0.90 0.45 1.37 0.00

Pipe Flow (l/s)

Status

341.9 165.6 957.8 988.0 1001.6 942.8 173.5 356.5 384.0 49.7 456.4 1301.1 1270.9 28.4 50.4 64.3 80.7 1378.2 213.1 99.3 224.7 103.9 248.7 290.4 25.2 75.0 475.9 506.8 86.3 654.4 652.8 84.3 759.7 763.7 128.1 198.1 335.5 39.6 120.2 437.5 453.9 97.4 193.2 338.8 429.8 45.7 611.0 993.4 1724.1 1728.7 1762.7 54.9 102.8 139.7 182.7 181.5 0.0

FLOOD RISK SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED OK OK SURCHARGED SURCHARGED SURCHARGED SURCHARGED FLOOD RISK SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED FLOOD RISK FLOOD RISK OK SURCHARGED OK SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED SURCHARGED OK OK SURCHARGED OK

CL 32.50 IL 29.511

30.0

CL 31.80 IL 29.418 CL 31.35 IL 29.850

CL 31.45 IL 29.352 0

00 34.

36.000

32 .0 0 0

CL 31.70 IL 29.381

CL 31.29 30.0

CL 31.55 CL 31.65 IL 29.639

34.00

CL 31.90 IL 29.628

CL 31.35 30.0

36.001

.00

31.0 00

CL 31.30 IL 28.986

33.000

CL 31.25 IL 29.366

CL 31.70 IL 29.354

CL 31.20 30.003

34.00

CL 31.86 IL 29.426

CL 31.30 IL 28.605

35.0

38.000

CL 31.25 IL 28.423

36.002

30.004

CL 30.75 IL 28.564

30.00 5

34.0

CL 30.85 IL 28.624

38.001

CL 31.25 IL 29.135

CL 30.65

30.0

CL 30.85 IL 28.268 39.00

30.0 07

36.003

CL 31.25 IL 28.992

CL 31.15 CL 31.05 IL 28.706

38.002

30.0

CL 30.60 IL 28.259

CL 30.60 IL 28.334

CL 30.60

CL 30.95 IL 28.614

30.009

40.000

39.001

CL 29.90 IL 28.152

38.003

CL 30.35 41.000

CL 30.78 38.004

CL 30.60 IL 27.866

CL 29.60 IL 27.374

CL 29.80 IL 27.520

38.005

30.010

38.006

CL 30.81 IL 29.310

CL 29.10 IL 27.593

CL 29.40

37.000

38.007

CL 29.68 IL 28.030

13.00

CL 28.80

43.000

CL 30.25 IL 28.087

CL 29.35 IL 27.175

CL 30.80 42

.00 0

CL 30.40 IL 28.668

13.001

CL 29.80 IL 27.874 CL 30.25 IL 27.906

13.002

CL 29.55

43.001

CL 30.33 IL 28.486

CL 28.52 Basin IL 26.520 Cellular IL 26.520 Infiltration Rate 1x10-7m/s

38.009

CL 30.20

.0 42

38.010

42.005

42.002

42.003

13.0

CL 29.50 IL 26.854 CL 29.20 IL 26.810

42.004

CL 30.43

CL 30.25 IL 28.085

CL 30.25

CL 29.80 IL 28.150

CL 30.90

44.004

CL 30.50 IL 29.000

CL 31.000 IL 28.407

.00

CL 31.00 CL 31.00 IL 29.307

10.003

CL 31.00 IL 29.350

.00 10

CL 31.00 IL 28.451

46.003

13.004

CL 31.00 Basin IL 29.000 Cellular IL 27.800 Infiltration Rate 5x10-6m/s

CL 31.67 IL 29.582 3 .00

.00

11 .00

CL 30.33

10.002

CL 31.71 IL 29.713

CL 31.60 IL 29.565 44

.00

CL 32.00

CL 32.10 CL 30.82 IL 29.082

44.001

11.001

10.001

CL 33.00 IL 31.578

CL 32.40 IL 29.334

CL 33.23 IL 30.580

46 .00

11.000

44.000

CL 32.07 IL 29.628

CL 33.60 IL 32.100

Freeboard Max Water Level

1. Do not scale this drawing. 1 in 100 + 30% Water Level

Deep bore soakaway access chamber

2. All dimensions are in metres unless stated otherwise.

Varies

Rainwater harvesting ring

CL 32.50 IL 30.232

Penstock to enable deep bore soakaway to be isolated in the event of large scale pollutant spills

NOTES: Natural drainage catchment

CL 32.10 IL 30.015

CL 32.62

10.000

KEY:

46 .00

CL 32.20

MJP 17.08.12 CMB

Minor amendments

MJP 04.07.12 CMB

Bypass separator Deep bore soakaway

Chkd

FOR INFORMATION

Free draining granular base

Catchment 1 surface water drainage network

Cellular soakaway

Catchment 1 pond and infiltration blanket

NORWICH URBAN EXTENSION

SCHEMATIC INFILTRATION SYSTEM IN GRANULAR ARES (5x10-6m/s)

Catchment 1 deep bore soakaway

NOT TO SCALE

Catchment 2 area - Approximately 41% impermeable Catchment 2 surface water drainage network

INDICATIVE SURFACE WATER DRAINAGE LAYOUT FOR SOUTHERN CATCHMENT

Freeboard

Catchment 2 pond and infiltration blanket

1 in 100 + 30% Water Level Client Deep bore soakaway access chamber

Varies

Deep bore soakaway access chamber

Deep bore soakaway

Bypass separator

Penstock to enable deep bore soakaways to be isolated in the event of large scale pollutant spills

Free draining granular base

Penstock to enable cellular crates and deep bore soakaways to be isolated in the event of large scale pollutant spills

Cellular soakaway

Bypass separator

Deep bore soakaway

Date of 1st Issue

-7

SCHEMATIC INFILTRATION SYSTEM IN COHESIVE ARES (1x10 m/s)

MJP

Offices throughout the UK, continental Europe, Africa and Asia

Checked by

1:1000

NOT TO SCALE

Drawn by

28.06.2012 A0 Scale

user name: michael pigden

Date

Drawing Issue Status

Catchment 1 area - Approximately 36% impermeable

Reproduced from/based upon Ordnance Survey material with the permission of Ordnance Survey on behalf of The Controller of Her Majesty's Stationery Office. Crown Copyright. Unauthorised reproduction infringes Crown Copyright and may lead to prosecution or civil proceedings. Licence No. 10001998 Year of Publication 2010 Owner/Purchaser of Mapping Beyond Green

Drawn

SCALING NOTE: Do not scale from this drawing. If in doubt, ask. UTILITIES NOTE: The position of any existing public or private sewers, utility services, plant or apparatus shown on this drawing is believed to be correct, but no warranty to this is expressed or implied. Other such plant or apparatus may also be present but not shown. The Contractor is therefore advised to undertake his own investigation where the presence of any existing sewers, services, plant or apparatus may affect his operations.

Area of SuDS within masterplan

Catchment 2 deep bore soakaway

Catchments and infiltration systems amended

Mark Revision

Existing area of trees Area of landscaping within masterplan

CMB

Drawing Number

24109/005/003

www.peterbrett.com Revision

Peter Brett Associates LLP READING Tel: 0118 950 0761 Fax: 0118 959 7498 File Location: j:\24109 broadlands\cad\dwgs\24109_005_003.dwg

North Sprowston & Old Catton Flood Risk Assessment

Appendix 7 â&#x20AC;&#x201C; Proposed SuDS Plan

J:\24109 Broadlands\005 Water\Civils\wp\Reports\R003 - FRA Rev 3.docx

North Sprowston & Old Catton Flood Risk Assessment

J:\24109 Broadlands\005 Water\Civils\wp\Reports\R003 - FRA Rev 3.docx

DEVELOPMENT BLOCK

CA 01

CATCHMENT AREA

NOTES:

ATTENUTATION & INFILTRATION SYSTEMS

GS02

BGD 2012

DRAWING STATUS: FOR INFORMATION ONLY

INDICATIVE DIRECTION OF NATURAL SURFACE WATER DRAINAGE RAINWATER HARVESTING RING SUDS FEATURE INDICATIVE LOCATION

OUTLINE APPLICATION BOUNDARY FUTURE BEESTON HALL APPLICATION AREA

ALIGNMENT OF NDR

GS24 GS33

CA 09

CA 08

GS03

GS26

GS32

CA 03

GS31

CA 01

CA 07

CA 02

CA 12 SP02

CA 11

CA 06

CA 04 CA 05 GS16

GS10

GS14 GS19

OC12

GS11

GS18

GS11 GS18

CA 10 REVISIONS PROJECT

NORTH SPROWSTON & OLD CATTON CLIENT

BEYOND GREEN DEVELOPMENTS DRAWING TITLE

PROPOSED SUDS PLAN SCALE A1

1:5000 DATE

18/09/2012 JOB REF

NS&OC

DRAWING No

NS&OC 133

DRAWN BY

BGD STATUS

OPA CAD REF

REVISION No

Beyond Green Developments North Sprowston & Old Catton

Appendix 13.1: Lower Layer Super Output Areas (LSOAS): Relevant Geographical Assessment Boundaries

ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston and Old Catton

APPENDIX 13.1 LOWER LAYER SUPER OUTPUT AREAS (LSOAS): RELEVANT GEOGRAPHICAL ASSESSMENT BOUNDARIES Outputs from the Census are based upon Output Areas (OAs) built from clusters of adjacent unit postcodes. They are designed to have similar population sizes and be as socially homogenous as possible (based on tenure of household and dwelling type). Urban/rural mixes are avoided where possible (i.e. OAs preferably consist entirely of urban postcodes or entirely of rural postcodes). They have approximately regular shapes and tend to be constrained by obvious boundaries such as major roads. OAs are based on very small sample sizes with a minimum of 40 resident households and 100 resident persons with a recommended size of 125 households. Until recently, the standard unit for presenting local statistical information was the electoral ward/division. This has drawbacks though, as electoral wards/divisions vary greatly in size, from fewer than 100 residents to more than 30,000. This is not ideal for nationwide comparisons, and also means that data which can safely be released for larger wards may not be released for smaller wards due to disclosure requirements (i.e. the need to protect the confidentiality of individuals). Further, electoral wards/divisions are subject to regular boundary changes. This creates problems when trying to compare datasets from different time periods. Therefore, to ensure consistency of size and boundaries the Office of National Statistics (ONS) has developed a range of areas that are of consistent size and whose boundaries do not change. These are built from groups of the OAs used for the 2001 Census, and known as Super Output Areas (SOAs). The smallest level of these new areas is the Lower Layer SOAs (LSOAs), built from groups of OAs (typically four to six) and constrained by the Standard Table wards used for 2001 Census outputs. They have a minimum size of 1,000 residents and 400 households, but average 1,500 residents, with 34,378 LSOAs covering England and Wales. As with the OAs, measures of proximity (to give a reasonably compact shape) and social homogeneity (to encourage areas of similar social background) were also included in their delineation and composition.

Appendix 13.1 ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston & Old Catton

Appendix 13.2: Additionality Assessment

ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston and Old Catton

APPENDIX 13.2 ADDITIONALITY ASSESSMENT Proposed Development Construction Employment

3783

Operational FTE Employment

1715

Construction Employment Factors

Leakage

Substitution

Displacement

Multiplier

Factor Values

Calculation

Description

Proposed Development

Gross direct effects

3,783

B = A*leakage

Estimated leakage

946

C= A-B

Gross local direct effects

D=C*displacement

Displacement

E=C-D

Net local direct effects

2,695

F=E*(multiplier -1)

Multiplier

1,348

G=E+F

Total Net local effects

4,043

0.25

2,837

0 142

0.05

1.5

Operational Employment Factors

Leakage

Substitution

Displacement

Multiplier

Factor Values

Calculation

Description

Proposed Development

Gross direct effects

1,715

B = A*leakage

Estimated leakage

429

C= A-B

Gross local direct affects

D=C*displacement

Displacement

643

E=C-D

Net local direct effects

643

F=E*(multiplier -1)

Multiplier

450

G=E+F

Total Net local effects

0.25

1,286

0.5

1.7

1,093

Less D1 Employment (95.5)

998

Less Reference Case (1)

997

Appendix 13.2 ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston & Old Catton

Appendix 13.3: Employment Density Calculations

ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston and Old Catton

APPENDIX 13.3 EMPLOYMENT DENSITY CALCULATIONS Use Class

Description

GIA Sqm

NIA* Sqm or Beds

Floor Area Basis

Area/ FTE sqm

Staff FTE

Goods shopping

4,840

4,114

NIA

216.5

High Street

A2-A5

Financial/prof services, pubs, takeaways & restaurants

Business

Guest houses

2 x 2FE Primaries

2 Community halls, library, health centre, & 5 nurseries/ crĂ¨ches

Comments

3,960

3,366

NIA

198.0

A2=16 & A3=18, therefore assume 17 and apply to all use classes

16,800

14,280

NIA

1,190

Assume General Office B1a

1,000

Beds

15.0

Assume 30 bed guesthouse (0.75 area = rooms, ave rm 25sqm)

95.5

See D1 table below for breakdown

2,000

5,000

Total

1,715 *Convert GIA to NIA Multiply by 0.85

Use Class

Pupil No.

Ave Pupil/ Teacher Ratio

Staff FTE

2FE Primary School

420

Plus four additional staff (admin/teaching assistants)

2FE Primary School

420

Plus four additional staff (admin/teaching assistants)

Description

Community Hall

Comments

Library

2.5

Based on no solo working and lunch cover

Health Centre

5 GPs, 4 dentists, practice manager, 3 practice nurses, 3 dental nurses, 1 dental hygenist 3 receptionists, 3 admin.

240

Staff ratio 2 adults per 20-26 children, have assumed 24

Nursery * 4 Total D1 Staff

95.5

Appendix 13.3 ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston & Old Catton

Appendix 14.0: N/A

ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston & Old Catton

Appendix 15.0: N/A

ES Volume 2: Technical Appendices

Beyond Green Developments North Sprowston & Old Catton

Appendix 16.0: N/A

ES Volume 2: Technical Appendices