Client Name
Risk Assessment of the Control of Legionellosis & Water Hygiene Report for
Client Name Property
Property: Date: Date for Review:
2010 2012
Client Name Address 1 Address 2 Address 3 Post code
Oakleaf Technical Services Ltd. 7 Brookfield Moulton Park Northampton NN3 6WL T: 0845 293 7571 F: 0845 2937572 www.theoakleafgroup.co.uk
Document Control Issue 1 2 3 4 5 6
Date
Surveyed
Quality Control
Approved
Surveyors Name Surveyor
Claire Youngman Co-ordination Manager
Haydn Harris Director
Client Name
Risk Assessment for the Control of Legionellosis and Water Hygiene Report for CLIENT NAME
Client Name: Site/Building Surveyed: Report Reference:
0000/RA-00
Survey Date:
2010
Review Date:
2012 (Systems must also be Re-Risk Assessed if there are significant changes to the building or occupants).
Responsible Person: Previous Risk Assessment Details: Risk Assessment Undertaken By:
Surveyors Name
Position:
Oakleaf Technical Services Ltd
Page 2 of 56
Report Ref: 0000/RA-00
Client Name
Contents Section
Content
1.0
Aim
04
2.0
Disclaimer
04
3.0
Building Description
05
4.0
Summary & Risk Assessment Rating
06
5.0
Risk Assessment Summary Classification
07
6.0
Faults Identified & Recommendations
09
7.0
Pre Planned Maintenance Programme Analysis
15
8.0
Survey Data and Results
17
9.0
Schematic Plan
52
10.0
Legionnaires Disease History and Information
53
11.0
Control of Legionellosis - Legislation
55
Oakleaf Technical Services Ltd
Page
Page 3 of 56
Report Ref: 0000/RA-00
Client Name
1.0
Aim
It is important for the Management and Control of Legionellosis as laid out in the APPROVED CODE OF PRACTICE & GUIDANCE (L8), an employer, self employed persons or persons who are in control of a premises as a workplace as a tenant or landlord is required to: a) Undertake a Legionella Risk Assessment of all water systems controlled by the above. b) Prepare a scheme of precautions for managing and controlling the assessed and foreseeable risks and implement and manage the scheme of precautions. c) Maintain records for the purposes of inspection, assessment and analysis for a period of no less than 5 years. d) To appoint, in writing, a suitably trained and experienced person to the position of Responsible Person with details of appointment and responsibilities laid out in writing. In the first instance, the aim of undertaking this risk assessment is to survey all items of plant located on the site/building and determine an associated risk score and a potential for bacterial contamination including Legionella bacteria for each item surveyed and to present an overall risk score for the site and building included in the scope of the report. In addition, we have designed this Risk Assessment to comply fully with the statutory requirement set out in the APPROVED CODE OF PRACTICE & GUIDANCE (L8) and is presented to allow the Responsible Person to consider the associated risk and appropriately manage the identified risks by the introduction of; or amendment to a Pre Planned Maintenance Programme. This assessment will consider the Management Policies and Procedures manuals and Logbook systems and include such items in the risk valuation system. A copy of this report should be placed into the sites log book system.
2.0
Disclaimer
This Survey was carried out on parts of the systems which were made accessible to the surveyor. Any water systems found in any part of the site, that were not made available for whatever reason, may not be included in this Report and exclusion of these systems does not indicate absence. A representative percentage of the site and services were surveyed therefore items of equipment that maybe present may not be included in this report. However, the plant and services surveyed are considered representative of the system as a whole and any remedial action should be considered for all plant. Whilst every endeavour is made in order to ascertain the correct information regarding the Site layout and system plant information, the surveyor must rely on site staff knowledge and any available system drawings and information. Lack of such knowledge or information and incorrect available information may lead to assumptions on the part of the surveyor. We will however, endeavour to ensure that all information gathered is accurate and current to allow for accurate Risk Assessment to be undertaken.
Oakleaf Technical Services Ltd
Page 4 of 56
Report Ref: 0000/RA-00
Client Name
3.0
Site / Building Description and Information
The House can be split into two main blocks, Block 1 and Block 2. Block 1 constitutes the main and the original part of the building. Block 2 is an extension to Block 1 and has been carried out over two phases, so there is an older side of Block 2 and a newer side. Two large domestic cold water storage tanks (CWSTs) were identified and accessed in Block 1, they are located in the roof space on opposite sides of the block. One of these units appears only to supply tanked cold water services (TCWS) whilst the CWST on the opposite side looks to supply TCWS and two cross plate heat exchangers (XPHEs) that are located in the main Boiler Room. Both of the CWSTs in Block 1 appear to be supplied with treated water from two separate water softeners. There is an additional water softener on the 1st floor of Block 1, it was unclear as to what this unit is configured to supply. There is a possibility that there is an additional CWST located in the middle section of Block 1 that is supplied from this water softener. For the purpose of this report is has been presumed that there are only two CWSTs in Block 1 however, confirmation of this may be required. Block 2 has two domestic CWSTs located in the roof space of the older side of the block. One of the CWSTs has a single outlet and a HWS expansion vent, and as a result it has been presumed that it feeds the calorifier located on the ground floor. It has been presumed that the other CWSTs two outlets supply TCWS to the older side of Block 2 and possibly the XPHEs located in the caretakers’ room on the newer side of the block. Confirmation of this may be required. It appears that the calorifier supplies all HWS to the older side of the block, whilst the XPHEs supply all HWS to the newer side of the block. The CWS pipework in the caretakers’ room has some incorrect labelling. Despite the pipework indicating that the supply to the XPHEs is from the mains supply, it is suspected that they are supplied from tanked water. This tanked water also appears to be boosted to the CWS outlets in the newer side of The Sugar Wing. Further confirmation of what is supplying the XPHEs and CWS outlets in Block 2 may be required.
Oakleaf Technical Services Ltd
Page 5 of 56
Report Ref: 0000/RA-00
Client Name
4.0
Summary & Risk Assessment Rating
SUMMARY & RISK ASSESSMENT RATING The Risk score has been determined by adding up the individual Risk scores from Section 5 to show an overall site Risk which is shown as elements of the survey. The Risk score is based on the results of the data recorded and the scoring system as detailed below. The Risk Assessment Score Scale is dependant on plant located on the site.
Report Section
Risk Score
Building Occupancy/Exposure Management System PPM & Records Water Heaters Calorifiers Cold Water Storage Tanks Distribution System (including showers) Air Handling Plant & Humidification Other Plant Items and Treatment Bacterial Analysis Results
15 9 33 0 46 38 58 8 8 0 Low = 49 – 98 Moderate = 99 – 245 High = 246 – 441
Risk Assessment Score Scale
Overall Property Score (See Risk Classification Below)
215
Overall Site Risk Rating
MODERATE
Please see the Risk Assessment Rating sheet located on the following page for a detailed summary of the risk scores provided above. These scores provide us with the Risk Assessment scoring system and allow the reader to understand where elements of the systems installed into the property have an increased risk and resulted in the above Risk Rating.
Risk Assessment Scoring System Element Likelihood
Consequence
Risk Classification
Oakleaf Technical Services Ltd
Rating
Classification
3
HIGH
2
MODERATE
1 0
LOW N/A
3
HIGH
2
MODERATE
1 0
LOW N/A
7–9
HIGH
4–6
MODERATE
1–3 0
LOW N/A
Description Urgent problems identified that represent a serious risk to health. Remedial actions required IMMEDIATELY. Element has failed or will fail within 1 month. Serious and multiple breaches of legal obligations. Problems identified. Remedial actions required within 1 Month. Element likely to fail within 3 months or has already failed. Breach of legal obligation. Elements located on site. Some actions may be necessary within 6 months. Element not located on this site. No Risk score allocated. Serious harm, major injury or death certain to occur. Multiple breaches of legal obligations. Remedial action required IMMEDIATELY. Harm, minor injury and lost time likely to occur. Remedial actions must be implemented within 3 months. Breach of legal obligations. Harm is unlikely to occur under normal operation. Element not located on this site. No Risk score allocated. Urgent attention required. Risk reduction measures MUST be implemented IMMEDIATELY. Risk reduction measures must be implemented within 3 months to reduce or control the risk. Maintain system operation, complete any remedial actions. Element not located on this site. No Risk score allocated.
Page 6 of 56
Report Ref: 0000/RA-00
Client Name
5.0
Risk Assessment Summary Classification
The following table represents the identified faults of the site and provides a Likelihood (L), Consequence (C) and Risk Rating (R) for each report section element. The Risk Rating has been calculated using the following formula: L x C = R The Total Risk Rating is calculated by adding up all of the Risk Rating Totals. It is important to note that although a Total Risk Rating may be LOW, certain elements may have a higher score in an individual basis. It is therefore IMPORTANT to ensure all of the report and its recommendations are considered. It is also important to consider the data in Sections 6, 7 & 8 to ensure full understanding of the faults identified and remedial actions required.
Report Section
Building Occupancy / Exposure
Management System
Pre Planned Maintenance
Water Heaters / Cistern Water Heaters
Calorifiers / XPHEs
Oakleaf Technical Services Ltd
Section Element
Presence of Susceptible Individuals Aerosol Generation
Risk Assessment Risk Present Y/N
Likelihood
Consequence
Risk Rating
Yes
3
2
6
Yes
3 3 Risk Assessment Rating Total: 2 1
9 15 2
Management Policy
Yes
Responsible Persons Appointed Lines of Communication Established Procedures Present Including Emergency Procedures Previous Risk Assessment Present
Yes
2
1
2
No
1
1
1
Yes
2
1
2
2
1
2
Yes
Risk Assessment Rating Total: 3 2
9 6
Logbook Satisfactory Maintenance Programme Satisfactory All Checks Completed
Yes
Records Fully Maintained
Yes
Storage & Flow At ≥60°C (>30 litres)
N/A
0
0
0
Yes Yes
3
3
9
3
3
9
3 3 Risk Assessment Rating Total:
9 33
Thermostat Set At ≥60°C (>30 litres) Header Section Clean
N/A
0
0
0
N/A
0
0
0
Services Well Used
N/A
0 0 Risk Assessment Rating Total: 1 1
0 0 1
Storage & Flow At ≥60°C
No
Thermostat Set At ≥60°C
No
1
1
1
Return At ≥50°C
No
1
1
1
Base At ≥50°C
Yes
3
3
9
Thermal Stratification Present
Yes
3
3
9
Drain Point Present
Yes
2
1
2
Drain Flushed Sediment/Scale Deposition Present In Initial Drain Flush Insulation Complete
Yes
2
1
2
Yes
3
2
6
Yes
3
2
6
Water Excessively Turbid
Yes
Page 7 of 56
3 3 Risk Assessment Rating Total:
Report Ref: 0000/RA-00
9 46
Client Name
Report Section
Cold Water Storage Tanks
Distribution Systems
Section Element
Risk Assessment
CWST Accessible
Risk Present Y/N No
1
1
1
Suitable Vented Lid Fitted
Yes
3
2
6
Rodent Screen Present CWST Compliant To The WS(WF)R1999 Unsuitable Materials
Yes
3
2
6
Yes
3
2
6
No
1
1
1
Bio-fouling Present
No
1
1
1
Excessive Sediment Present
Yes
3
2
6
Excessive Corrosion Present
No
1
1
1
1
1
1
Likelihood
Consequence
Risk Rating
Stagnation Present
No
Temperature <20°C
Yes
CWS <20°C (2 Mins)
Yes
HWS ≥50°C (1 Min)
No
1
1
1
Dead Legs
Yes
3
2
6
Low Use
Yes
3
3
9
Showers Present
Yes
3
3
9
Shower Heads Clean
Yes
3
3
9
Shower Frequently Used
Yes
3
3
9
TMVs Present
Yes
2
2
4
Common Blended Pipework >2 M WRC Approved Materials/Suitable Supply
No
1
1
1
1
1
1
No
3 3 Risk Assessment Rating Total: 3 3
9 9
Risk Assessment Rating Total:
Air Handling Units & Humidifiers
Water Softeners
Bacterial Analysis
Intake Protected Against Rain Water Ingress Internal Surfaces Condition
No
1
1
1
Yes
2
2
4
Unit Condition
No
1
1
1
Humidification Present
N/A
0
0
0
Pond <20°C & Clean
N/A
0
0
0
Water Pooling
Yes
1
2
2
Water Treatment
N/A
Brine Tank Filled With Salt
Yes
Brine Tank Clean
Yes
2
2
Unit Serviced
No
1
1
Unit Online
No
Legionella Bacteria Present
N/A
Elevated TVC
N/A
Elevated E.Coli/Coliforms
N/A
0 0 Risk Assessment Rating Total: 2 1
0 0 2 4 1
1 1 Risk Assessment Rating Total: 0 0 0
1 0 0
0
0
0 0 Risk Assessment Rating Total:
Risk Assessment Rating Total: Risk Rating:
0 0
215 MODERATE
*Water Supply (Water Fittings) Regulations 1999
Oakleaf Technical Services Ltd
Page 8 of 56
Report Ref: 0000/RA-00
Client Name
6.0
Faults Identified & Recommendations
CLIENT NAME Block: Date of Survey:
Asset
Location
Fault Identified
Building Occupancy
General
Elderly persons present.
Management System
Written Scheme of Precautions
Management System
Training
Management System
Management Team
Pre Planned Maintenance
Pre Planned Maintenance
Policy and Procedures review is now overdue. No certificates for training present. Training reviews now due. No evidence of sufficient management team nominations was present. PPM Programme is not sufficient due to the lack of temperature monitoring and inspections.
Cross-Plate Heat Exchangers
Cross-Plate Heat Exchangers
Oakleaf Technical Services Ltd
Recommendation A slight increase in risk due to the presence of elderly persons. The PPM Programme requires to be improved for tighter control measures. Ensure that the current policy and procedures are reviewed annually to account for changes in legislation Comprehensive training for all personnel involved in the management and control of Legionnaires disease must now be undertaken with certificates issued and placed in the site Log Book. Ensure all management team members involved in the control of Legionellosis be appointed in writing with details of their appointment recorded. A complete review of the PPM regime must be undertaken to come into line with the updated policy document.
XPHE 1, XPHE 2
The cold feed to the unit was in excess of the recommended <20°C. No NRV was noted on the cold feed pipework.
The elevated temperature experienced within the cold feed to the unit shows it is likely that there is backflow into the cold feed. In order to avoid the cold feed warming up and the potential for increased bacterial activity as a result of increased temperatures, an NRV should be added to the cold feed as close to the unit as possible (≤1m). NRVs must not be fitted to units that utilise the cold feed as a means of expansion.
XPHE 3, XPHE 4
The cold feed to the unit was in excess of the recommended <20°C.
The cold feed pipework to the units should be below 20°C. It was noted that the cold feed to these units had an NRV fitted. It is therefore possible that the NRV is letting-by, in which case the valve may need to be repaired or replaced.
Page 9 of 56
Report Ref: 0000/RA-00
Sign Off
Client Name
Asset
Location
Fault Identified
Recommendation It is best practice for the unit to have a suitably positioned drain fitted in order to facilitate flushing. However, in this instance as the XPHE is linked to another unit with a drain fitted to the flow pipework, it is not essential to fit a drain. Some of the CWS pipework appears to be incorrectly labelled, showing that the supply to the units is from mains and tanked water supplies. The correct configuration of the pipework and the correct water sources need to be established before labelling the pipework, including the correct flow directions of the water. The thermal stratification observed within the unit should be eliminated by the installation of a de-stratification pump. This will ensure that sufficient mixing of the entire contents of the unit will achieve the requirements of thermal disinfection. De-stratification pumps are advised to be installed to operate for at least 1 hour in every 24 hour period and 1 hour prior to the first daily usage. The elevated temperature experienced within the cold feed to the unit shows it is likely that there is backflow into the cold feed. In order to avoid the cold feed warming up and the potential for increased bacterial activity as a result of increased temperatures, an NRV should be added to the cold feed as close to the unit as possible (â&#x2030;¤1m). NRVs must not be fitted to units that utilise the cold feed as a means of expansion.
Cross-Plate Heat Exchangers
XPHE 4
No drain apparent.
Cross-Plate Heat Exchangers
XPHE 3, XPHE 4
Incorrect labelling on the pipework associated with the units.
Calorifiers
CAL 5
The base temperature recorded from this unit was <50°C. The unit is suffering thermal stratification.
CAL 5
The cold feed to the unit was in excess of the recommended <20°C. No NRV was noted on the cold feed pipework.
CAL 5
The flush of the drain revealed heavy sediments present within the sample water.
The excessive sediment deposits present in the flush of the drain indicates that the unit is not being subjected to quarterly flushing of the drain. The unit must now be placed onto a more frequent flushing regime (consider monthly) until the deposits present are clear.
CAL 5
The circulation pump was not operational.
Even though the return water appeared to be achieving the recommended temperatures, the circulation pump should be operating, ensuring that the water is being fully circulated around the system. If the pump is faulty then it should be repaired or replaced.
Calorifiers
Calorifiers
Calorifiers
Oakleaf Technical Services Ltd
Page 10 of 56
Report Ref: 0000/RA-00
Sign Off
Client Name
Asset
Location
Fault Identified
Recommendation
Calorifiers
CAL 5
Insufficient insulation. Loose around the unit.
Cold Water Storage Tanks
CWST 1, CWST 2 CWST 3, CWST 4
The units did not have vents fitted to the lids.
Cold Water Storage Tanks
CWST 2, CWST 3 CWST 4
Stored water temperatures within the unit above the recommended level.
Cold Water Storage Tanks
CWST 1, CWST 2
Slight sediments were observed within the units.
Cold Water Storage Tanks
CWST 3, CWST 4
Moderate sediments observed within the units.
Cold Water Storage Tanks
CWST 1, CWST 2
The associated pipework was not sufficiently insulated.
Cold Water Storage Tanks
CWST 3, CWST 4
No warning pipe was noted as being fitted to the units.
Cold Water Storage Tanks
CWST 3, CWST 4
No rodent screen noted on the overflow pipework.
The unit and its associated pipework should be fully insulated against the effects of heat loss. The insulation must comply with BS6700. In order for the unit to comply with the ‘Water Supply (water fittings) Regulations 1999’ the tank should have a tight fitting and vented lid that cannot shatter or contaminate the unit in any way. It is recommended that water temperature within the unit be kept below 20°C. If elevated temperatures persist then the cause may need to be identified and rectified. Possible causes include backflow and back heating from the calorifiers/XPHEs. Where elevated tank temperatures remain, it must be ensured that the outlets supplied from the units are well used or flushed regularly and the water within the unit is regularly turned over. It must also be ensured that the water and tank are kept in a good and clean condition. Although cleaning of the unit is not necessary at this time, it is important to ensure cleaning and disinfection is undertaken as directed by the PPM Programme. The unit is now due for a clean and disinfection at the next practicable opportunity. Clean and disinfections must be undertaken in accordance with BS6700. It is important to ensure that the associated pipework from this unit that is fitted with sufficient insulation, in accordance with BS6700, to protect against the effect of heat gain and the potential for increased bacterial activity as a resulting from increased temperatures. In order to comply with the ‘Water Supply (water fittings) Regulations 1999’, it is important to fit a suitable warning pipe to tanks >1000 litres in capacity, that terminates were persons may be made aware that there may a problem with the unit. In order for the unit to comply with the ‘Water Supply (water fittings) Regulations 1999’ the tank should have an overflow pipe with a rodent screen fitted with apertures of no greater than 0.65mm.
Oakleaf Technical Services Ltd
Page 11 of 56
Report Ref: 0000/RA-00
Sign Off
Client Name
Asset
Location
Fault Identified
Cold Water Storage Tanks
CWST 3, CWST 4
The inlet and outlets were located on the same side of the unit.
Cold Water Storage Tanks
CWST 4
The HWS expansion pipe was directed into the CWST.
Cold Water Storage Tanks
CWST 1, CWST 2
The tanks were not sufficiently labelled.
Cold Water Storage Tanks
CWST 1
Possible missed tank in middle section, supplied from WS 3
Water Softeners
WS 1, WS 2 WS 3
Dirty Brine Tanks.
The brine tank and water should be kept in a good and clean condition to prevent the potential of contaminating the domestic water supply after unit regeneration.
Water Softeners
WS 1
Quite low salt levels within the brine tank.
Ensure adequate salt levels are maintained within the brine tank.
Oakleaf Technical Services Ltd
Page 12 of 56
Recommendation In order to comply with the â&#x20AC;&#x2DC;Water Supply (water fittings) Regulations 1999â&#x20AC;&#x2122; and to ensure a suitable throughput of fresh water throughout the entire body of water within the unit, the installation of an internal sparge pipe to the outlet is recommended. Although not a requirement of the Water Supply (water fittings) Regulations 1999, we would advocate that the HWS expansion pipe be redirected to a suitable drain point via a tundish. This will reduce the potential for increased proliferation as a result of increased temperatures from the HWS system. The tank should be suitably labelled with some form of asset number. This will allow for increased ease of identification for maintenance purposes and PPM Programme requirements. In this instance asset numbers were not directly attached to the units. It has been deemed possible that there is an additional domestic CWST in EMI. If this is the case it is likely to be in the roof space of the middle section of the block. Confirmation is required that all CWSTs within the building have been included within this risk assessment. The presence of all CWSTs within the building must be known and documented. Any additional tanks must to be identified and need to have full and safe access to allow for a thorough inspection to be carried out and to facilitate PPM programme requirements. As no additional tanks were actually identified, for the purpose of this report it has been presumed that there are no additional tanks within the building.
Report Ref: 0000/RA-00
Sign Off
Client Name
Asset
Location
Fault Identified
Water Softeners
WS 3
The unit is being by-passed.
Air Handling Units
AHU 1
The unit should be included within the site PPM Programme.
Air Handling Units
AHUs 2 - 4
The units are offline and appear to have been decommissioned.
CWS Outlets
General CWS outlets.
A number of the CWS outlets recorded temperatures in excess of the recommended level.
CWS Outlets
The Sugar Wing CWS outlets.
A number of the CWS outlets recorded temperatures well in excess of the recommended level.
Outlets general throughout
General outlets throughout.
Dead Legs and Low Use
General throughout the site.
Oakleaf Technical Services Ltd
A number of the outlets throughout the site were noted to be dirty/scaled including some of the shower heads. Some seized outlets were encountered and some DWBs were not in use. Pipework acting as deadlegs.
Page 13 of 56
Recommendation If the water softener is no longer required then it should be removed from the system, otherwise the unit should not remain isolated. If the unit is faulty then it needs to be repaired or replaced. We were also unable to confirm what the water softener is supplying. If the unit is to remain in use it should be ensured that the services that the unit supplies are known and well used. Regular inspections on the unit, checking its external and internal condition and checking for water pooling, should be documented and included in the site PPM Programme. Confirmation is required that the units are no longer in use. Ensure that the units remain offline. The usage and non-usage of the AHUs should be documented within the site log book. CWS outlets should be recording temperatures below the recommended 20째C. The slightly elevated temperatures recorded throughout the site were considered to be as a result of low usage and/or elevated CWST temperatures (please refer to above recommendation). It is important to ensure that any outlets recording elevated temperatures are well used or flushed regularly. Certain parts of the Sugar Wing had very high CWS temperatures recorded. The cause of these elevated temperatures may specifically require further investigation. It is possible that the NRV to XPHE 3 & 4 is letting by which could lead to raised temperatures. (Refer to XPHE recommendations above). It is important to ensure that the outlets be maintained in as clean a condition as possible as part of a regular cleaning regime. The showers must be included in the PPM Programme for shower head cleaning, descale and disinfection on a quarterly basis. In these instances the outlets need to be repaired or replaced to ensure that the pipework can be used and flushed regularly. If any of the services are no longer required then they should be removed with the pipework being cut back to within 350mm of the source pipework.
Report Ref: 0000/RA-00
Sign Off
Client Name
Asset
Location
Fault Identified
Dead Legs and Low Use
General throughout the site.
Potential for deadleg pipework present within the building.
Dead Legs and Low Use
General throughout the site.
A number of the outlets throughout the site were noted as being disused or low usage.
Thermostatic Mixing Valves
General TMVs throughout site.
Not all of the TMVs on site could be located and identified. Potential for excessive blended pipework.
Oakleaf Technical Services Ltd
Page 14 of 56
Recommendation The survey did not involve pipe tracing and therefore not all of the pipework was seen. All deadlegs throughout the site must be cut back to within 350mm of the source pipework at the earliest opportunity. It is important to ensure that all disused and low use services are identified and placed onto a weekly flushing programme to prevent stagnated products building up in the system. Where a service is no longer required, consideration should be made as to its disconnection from the main system as the source. If any outlets with shower heads have not been used for a significant amount of time, additional precaution should be taken when flushing for the first time. The shower head should be removed prior to flushing to minimise the amount of aerosol created. Blended pipework should be kept to a maximum of 2 meters in length. If any sections of excessive blended pipework are identified it is important to ensure that either individual mixing valves be installed to ensure that the blended pipework is less than 2 meters or that the outlets be confirmed as used on a regular basis, at least twice weekly.
Report Ref: 0000/RA-00
Sign Off
Client Name
7.0
Pre Planned Maintenance Programme Analysis
The following table contains the details of the Pre Planned Maintenance Programme (if any) and recommends the frequency set out in the APPROVED CODE OF PRACTICE L8 or that determined necessary by the surveyor. Current Frequency Item Of Plant
Cold Water Storage Tanks
Distribution System
X – Plate Heat Exchanger/Angellery Water Heaters
Direct and Indirect Water Storage Calorifiers
Cistern Type Water Heaters
Water Heaters/Combi
Showers – Electric/Mixer
Oakleaf Technical Services Ltd
Task Required Temperature Monitoring General Inspections Clean and Disinfection Biological Monitoring Sentinel Outlets (Hot and Cold) All Outlets Temperatures Clean and Disinfection Biological Monitoring Low Use Flushing Temperature Monitoring General Inspections Clean and Disinfection Biological Monitoring Temperature Monitoring General Inspections Clean and Disinfection Biological Monitoring Temperature Monitoring General Inspections Clean and Disinfection Biological Monitoring Temperature Monitoring General Inspections Temperature Monitoring General Inspections Clean and Disinfection Biological Monitoring
Page 15 of 56
None
Weekly/As Required
Monthly
Quarterly
6 – Monthly X X
X X X X X X X X X X X X X X X X X X X X X X X X X
Report Ref: 0000/RA-00
Annual
Recommended Frequency 6 – Monthly Annual As Required Directed by PPM Programme Monthly Annual As Required As Required As Required Monthly Quarterly As Required As Required Monthly Quarterly As Required As Required Monthly Quarterly As Required As Required 6 – Monthly Annual Monthly Quarterly Quarterly As Required
Client Name
Pre Planned Maintenance Analysis Continued: Current Frequency Item Of Plant
Task Required
None
Weekly/As Required
Monthly
Quarterly
6 – Monthly Random selection
Temperature Monitoring X X X
Annual
Recommended Frequency Monthly
Thermostatic Mixing Valves
General Inspections Clean and Disinfection Biological Monitoring Hardness Test
X
Weekly
Water Softeners
Operational Check
X
Monthly
X
Regeneration Water Features Vending Machines Non Ducted Air Conditioning Ducted Air Conditioning Plant
Oakleaf Technical Services Ltd
Treatment Inspections Clean and Disinfection Cleaning and Disinfection General Inspection General Maintenance General Inspections Clean and Disinfection (inc. Traps)
Page 16 of 56
Quarterly Quarterly As Required
Automated
X X X X X X X X
Daily Monthly As Required Weekly Monthly 6 – Monthly Quarterly Quarterly
Report Ref: 0000/RA-00
Client Name
8.0
Survey Data and Results
CLIENT NAME Block: Date of Survey:
Building Occupancy/Exposure
Building Occupants?
Care home residents and staff. All of the residents are elderly.
Period of Building Use?
The building is residential and therefore in constant use.
Is an aerosol generated within this building?
Yes – Water services present, including showers.
Management System Is there a Management Policy for the Control of Legionella?
Yes – Completed April 2007. Due for review.
Is the Management Policy sufficient?
Yes
Are all persons involved trained and certificates issued?
Some training completed. No certificates present. Further training now due.
Is there a Pre Planned Maintenance Programme undertaken?
Yes
Is the PPM Programme sufficient?
No
Are lines of communication clearly established and recorded?
Yes – To be reviewed with policy/procedure manuals
Oakleaf Technical Services Ltd
Page 17 of 56
Report Ref: 0000/RA-00
Client Name
Has a Responsible Person been nominated in writing?
Nomination letters submitted via client â&#x20AC;&#x201C; unknown if appointments confirmed
Are the responsibilities of all persons clearly established and recorded?
Yes â&#x20AC;&#x201C; Within policy document and nomination sample letters.
Is the Previous Risk Assessment Present?
Held centrally.
Previous Risk Assessment Reference & completed by?
Risk Assessment Review by Oakleaf Technical Services Ltd. Completed by Haydn Harris.
Previous Risk Assessment date?
16th January 2006
Elevated results procedure present in the Logbook?
No
Oakleaf Technical Services Ltd
Page 18 of 56
Report Ref: 0000/RA-00
Client Name
Cross Plate Heat Exchangers Cross Plate Heat Exchangers: XPHE 1 - (VJR0016) Main Boiler Room
Location of access:
Rear/smaller dining area corridor
Is the unit online and period of operation:
Yes
Unit supplies:
HWS to EMI
Unit supplied from:
CWST (suspected from CWST 2)
Flow temperature:
65°C
Return temperature:
60°C
Base temperature:
N/A
Cold feed temperature:
54°C – boiler room very hot
Thermostat set temperature:
65°C
Stratification present: (For units >150 litres)
N/A
Construction type and materials:
XPHE
Unit linked to other XPHEs:
Yes – XPHE 2 via return and flow
Dimensions and capacity:
N/A
Is the unit safely accessible:
Yes
Method of heating:
Primary
Drain position:
Flow
Drain size:
~15mm
Oakleaf Technical Services Ltd
Page 19 of 56
Report Ref: 0000/RA-00
Client Name
Drain flushed: State turbidity.
Yes â&#x20AC;&#x201C; Clear
Isolation valves present: (including on pumps)
Yes
Is a Non-return valve fitted to the cold feed:
No
Cold feed size:
35mm
Is the recirculation pump operating and installed correctly:
Yes
Dual circulation pumps fitted switched:
N/A
Is the unit and pipework adequately insulated:
Yes
Nearest drain:
<5m
Nearest power supply:
<5m
Is the unit labelled:
Yes
Is there an inspection hatch: (For units >150 litres)
N/A
Oakleaf Technical Services Ltd
Page 20 of 56
Report Ref: 0000/RA-00
Client Name
Cross Plate Heat Exchangers Cross Plate Heat Exchangers: XPHE 2 - (VJR0017) Main Boiler Room
Location of access:
Rear/smaller dining area corridor
Is the unit online and period of operation:
Yes
Unit supplies:
HWS to EMI
Unit supplied from:
CWST (suspected from CWST 2)
Flow temperature:
65°C
Return temperature:
60°C
Base temperature:
N/A
Cold feed temperature:
44°C – boiler room very hot
Thermostat set temperature:
65°C
Stratification present: (For units >150 litres)
N/A
Construction type and materials:
XPHE
Unit linked to other XPHEs:
Yes – XPHE via return and flow
Dimensions and capacity:
N/A
Is the unit safely accessible:
Yes
Method of heating:
Primary
Drain position:
Flow
Drain size:
~15mm
Oakleaf Technical Services Ltd
Page 21 of 56
Report Ref: 0000/RA-00
Client Name
Drain flushed: State turbidity.
Yesâ&#x20AC;&#x201C; Clear
Isolation valves present: (including on pumps)
Yes
Is a Non-return valve fitted to the cold feed:
No
Cold feed size:
35mm
Is the recirculation pump operating and installed correctly:
Yes
Dual circulation pumps fitted switched:
N/A
Is the unit and pipework adequately insulated:
Yes
Nearest drain:
<5m
Nearest power supply:
<5m
Is the unit labelled:
Yes
Is there an inspection hatch: (For units >150 litres)
N/A
Oakleaf Technical Services Ltd
Page 22 of 56
Report Ref: 0000/RA-00
Client Name
Cross Plate Heat Exchangers Cross Plate Heat Exchangers: XPHE 3 - (VJR0043) New Block Caretakers Room
Location of access:
External access to Caretakers Room
Is the unit online and period of operation:
Yes
Unit supplies:
HWS to newer side of Sugar Wing
Unit supplied from:
Presumed CWST
Flow temperature:
64°C
Return temperature:
58°C
Base temperature:
N/A
Cold feed temperature:
40°C
Thermostat set temperature:
65°C
Stratification present: (For units >150 litres)
N/A
Construction type and materials:
XPHE
Unit linked to other XPHEs:
Yes – XPHE 4 via flow and return
Dimensions and capacity:
N/A
Is the unit safely accessible:
Yes – Although restricted access
Method of heating:
Primary
Drain position:
On flow pipework
Drain size:
~15mm
Oakleaf Technical Services Ltd
Page 23 of 56
Report Ref: 0000/RA-00
Client Name
Drain flushed: State turbidity.
Yes â&#x20AC;&#x201C; Clear
Isolation valves present: (including on pumps)
Yes
Is a Non-return valve fitted to the cold feed:
Yes
Cold feed size:
~1â&#x20AC;?
Is the recirculation pump operating and installed correctly:
Yes
Dual circulation pumps fitted switched:
N/A
Is the unit and pipework adequately insulated:
Yes
Nearest drain:
>5m
Nearest power supply:
<5m
Is the unit labelled:
Yes
Is there an inspection hatch: (For units >150 litres)
N/A
Oakleaf Technical Services Ltd
Page 24 of 56
Report Ref: 0000/RA-00
Client Name
Cross Plate Heat Exchangers Cross Plate Heat Exchangers: XPHE 4 - (VJR0044) New Block Caretakers Room
Location of access:
External access to Caretakers Room
Is the unit online and period of operation:
Yes
Unit supplies:
HWS to newer side of Sugar Wing
Unit supplied from:
Presumed CWST
Flow temperature:
64°C
Return temperature:
58°C
Base temperature:
N/A
Cold feed temperature:
40°C
Thermostat set temperature:
65°C
Stratification present: (For units >150 litres)
N/A
Construction type and materials:
XPHE
Unit linked to other XPHEs:
Yes – XPHE 3 via flow and return
Dimensions and capacity:
N/A
Is the unit safely accessible:
Yes – Although restricted access
Method of heating:
Primary
Drain position:
Not seen
Drain size:
N/A
Oakleaf Technical Services Ltd
Page 25 of 56
Report Ref: 0000/RA-00
Client Name
Drain flushed: State turbidity.
N/A
Isolation valves present: (including on pumps)
Yes
Is a Non-return valve fitted to the cold feed:
Yes
Cold feed size:
~1â&#x20AC;?
Is the recirculation pump operating and installed correctly:
Yes
Dual circulation pumps fitted switched:
N/A
Is the unit and pipework adequately insulated:
Yes
Nearest drain:
>5m
Nearest power supply:
<5m
Is the unit labelled:
Yes
Is there an inspection hatch: (For units >150 litres)
N/A
Oakleaf Technical Services Ltd
Page 26 of 56
Report Ref: 0000/RA-00
Client Name
Calorifiers Calorifiers: CAL 5 – (VJR0134) Cupboard under stairs
Location of access:
Stairwell lobby off entrance to Sugar Wing
Is the Calorifier online and period of operation:
Yes - The unit appears to be online
Calorifier supplies:
Suspected HWS to the entrance/older side of Sugar Wing
Unit supplied from:
CWST
Flow temperature:
66°C
Return temperature:
50°C
Base temperature:
27°C
Cold feed temperature:
26°C
Thermostat set temperature:
Not known
Stratification present: (For units >150 litres)
Yes
Construction type and materials:
Copper – Vertical
Unit linked to other Calorifiers:
No
Dimensions and capacity:
1.6 x 0.50m @ ~ 300 litres
Is the Calorifier safely accessible:
Yes
Method of heating:
Primary
Drain position:
Base
Oakleaf Technical Services Ltd
Page 27 of 56
Report Ref: 0000/RA-00
Client Name
Drain size:
~18mm
Drain flushed: State turbidity.
Yes - Turbid
Isolation valves present: (including on pumps)
Yes
Is a Non-return valve fitted to the cold feed:
No
Cold feed size:
~1½“
Is the recirculation pump operating and installed correctly:
Not operating
Dual circulation pumps fitted switched:
N/A
Is the Calorifier and pipework adequately insulated:
No – Loose around unit
Nearest drain:
>5m
Nearest power supply:
>5m
Is the unit labelled:
Yes
Is there an inspection hatch: (For units >150 litres)
Yes
Oakleaf Technical Services Ltd
Page 28 of 56
Report Ref: 0000/RA-00
Client Name
Cold Water Storage Tanks (Domestic) Cold Water Storage Tanks: CWST 1 - (VJR0164) Roof Space
Location of access:
Loft hatch - 2nd Floor Corridor by Room B208
State what the unit supplies:
TCWS to EMI
Make up temperature:
19°C
Storage temperature:
19°C
Dimensions and capacity:
1.0 x 2.0 x 5.5m @ ~ 11,000 litres
Material of construction:
GRP
Is a tight fitting lid fitted: (Note any holes and condition)
Yes
Is the lid vented:
No
Material of lid:
GRP
Type of level control:
Ballvalve
Overflow size and construction:
Plastic ~¾”
Warning pipe size and construction: (For units >1000 litres)
Plastic ~2”
Rodent Screens fitted:
Yes
Inlets and outlets opposed? (For units >1000 litres)
Yes
Number of outlets: Material and size:
1 x Copper ~ 2”
Oakleaf Technical Services Ltd
Page 29 of 56
Report Ref: 0000/RA-00
Client Name
Linked to any other Tanks:
No
Are sufficient valves fitted:
Yes
Supply pipework size and material:
Copper ~1Âźâ&#x20AC;?
Drain size and location:
None fitted
Corrosion levels:
None
Sediment levels:
Light
Stagnation present:
No
Biofilm present:
No
Unit accessible/headroom:
Yes
Sufficient insulation present on tank and pipework:
Supply pipework not insulated
Nearest drain:
>5m
Nearest power:
<5m
Does the HWS system expansion pipe expand away from the tank:
N/A
Is the unit labelled:
Label on loft hatch
Does the unit comply? (Water Supply (water fittings) Regulations 1999)
No
Oakleaf Technical Services Ltd
Page 30 of 56
Report Ref: 0000/RA-00
Client Name
Cold Water Storage Tanks (Domestic) Cold Water Storage Tanks: CWST 2 - Roof Space
nd
Location of access:
Loft hatch - 2 Floor Corridor by Room B218
State what the unit supplies:
XPHE 1 & 2 and TCWS to EMI
Make up temperature:
22°C
Storage temperature:
24°C
Dimensions and capacity:
1.0 x 2.0 x 5.5m @ ~ 11,000 litres
Material of construction:
GRP
Is a tight fitting lid fitted: (Note any holes and condition)
Yes
Is the lid vented:
No
Material of lid:
GRP
Type of level control:
Ballvalve
Overflow size and construction:
Plastic ~¾”
Warning pipe size and construction: (For units >1000 litres)
Plastic ~2”
Rodent Screens fitted:
Yes
Inlets and outlets opposed? (For units >1000 litres)
Yes
Number of outlets: Material and size:
2 x ~2” copper
Oakleaf Technical Services Ltd
Page 31 of 56
Report Ref: 0000/RA-00
Client Name
Linked to any other Tanks:
No
Are sufficient valves fitted:
Yes
Supply pipework size and material:
Copper 1½â&#x20AC;?
Drain size and location:
None fitted
Corrosion levels:
None
Sediment levels:
Light
Stagnation present:
No
Biofilm present:
No
Unit accessible/headroom:
Yes
Sufficient insulation present on tank and pipework:
Not all the associated pipework
Nearest drain:
>5m
Nearest power:
>5m
Does the HWS system expansion pipe expand away from the tank:
N/A
Is the unit labelled:
No
Does the unit comply? (Water Supply (water fittings) Regulations 1999)
No
Oakleaf Technical Services Ltd
Page 32 of 56
Report Ref: 0000/RA-00
Client Name
Cold Water Storage Tanks (Domestic) Cold Water Storage Tanks: CWST 3 - (VJR0079) Roof Space
rd
Location of access:
Off stairwell from 3 Floor
State what the unit supplies:
Suspected DCWS to entrance/older side of Sugar Wing and XPHEs 3&4
Make up temperature:
19°C
Storage temperature:
20°C
Dimensions and capacity:
1.0 x 1.95 x 1.35m @ ~ 2600 litres
Material of construction:
GRP
Is a tight fitting lid fitted: (Note any holes and condition)
Yes
Is the lid vented:
No - not visible
Material of lid:
GRP
Type of level control:
Ballvalve
Overflow size and construction:
Plastic ~2”
Warning pipe size and construction: (For units >1000 litres)
Not seen
Rodent Screens fitted:
No
Inlets and outlets opposed? (For units >1000 litres)
No
Number of outlets: Material and size:
2 outlets. 1 x 34mm copper. 1 x 1½“ copper
Oakleaf Technical Services Ltd
Page 33 of 56
Report Ref: 0000/RA-00
Client Name
Linked to any other Tanks:
No
Are sufficient valves fitted:
Yes
Supply pipework size and material:
Copper 1â&#x20AC;?
Drain size and location:
None fitted
Corrosion levels:
None
Sediment levels:
Moderate
Stagnation present:
No
Biofilm present:
No
Unit accessible/headroom:
Yes
Sufficient insulation present on tank and pipework:
Yes
Nearest drain:
>5m
Nearest power:
>10m
Does the HWS system expansion pipe expand away from the tank:
Yes
Is the unit labelled:
Yes
Does the unit comply? (Water Supply (water fittings) Regulations 1999)
No
Oakleaf Technical Services Ltd
Page 34 of 56
Report Ref: 0000/RA-00
Client Name
Cold Water Storage Tanks (Domestic) Cold Water Storage Tanks: CWST 4 - (VJR0080) Roof Space
Location of access:
Off stairwell from 3rd Floor
State what the unit supplies:
Suspected CAL 5
Make up temperature:
19°C
Storage temperature:
21°C
Dimensions and capacity:
1.0 x 1.95 x 1.35m @ ~ 2600 litres
Material of construction:
GRP
Is a tight fitting lid fitted: (Note any holes and condition)
Yes
Is the lid vented:
No- not visible
Material of lid:
GRP
Type of level control:
Ballvalve
Overflow size and construction:
Plastic ~2”
Warning pipe size and construction: (For units >1000 litres)
Not seen
Rodent Screens fitted:
No
Inlets and outlets opposed? (For units >1000 litres)
No
Number of outlets: Material and size:
1 x ~1 ½” copper
Oakleaf Technical Services Ltd
Page 35 of 56
Report Ref: 0000/RA-00
Client Name
Linked to any other Tanks:
No
Are sufficient valves fitted:
Yes
Supply pipework size and material:
Copper 1 â&#x20AC;?
Drain size and location:
None fitted
Corrosion levels:
None
Sediment levels:
Moderate
Stagnation present:
No
Biofilm present:
No
Unit accessible/headroom:
Yes
Sufficient insulation present on tank and pipework:
Yes
Nearest drain:
>5m
Nearest power:
>10m
Does the HWS system expansion pipe expand away from the tank:
No
Is the unit labelled:
Yes
Does the unit comply? (Water Supply (water fittings) Regulations 1999)
No
Oakleaf Technical Services Ltd
Page 36 of 56
Report Ref: 0000/RA-00
Client Name
Water Softeners nd
Water Softeners: WS 1 - Bath 203 on 2 floor
Is the unit online?
Yes
Is the unit free from leaks?
Yes
Is the bypass closed?
Yes
Is the brine tank filled with salt?
Yes - low
Is the brine tank clean?
Slightly dirty
Is a lid fitted to the brine tank?
Yes
Is there water in the brine tank?
Yes
Are the services the unit supplies well used?
Not known â&#x20AC;&#x201C; presumed yes
Comments:
Oakleaf Technical Services Ltd
Page 37 of 56
Report Ref: 0000/RA-00
Client Name
Water Softeners nd
Water Softeners: WS 2 - Toilet 2 floor opposite room B219
Is the unit online?
Yes
Is the unit free from leaks?
Yes
Is the bypass closed?
Yes
Is the brine tank filled with salt?
Yes â&#x20AC;&#x201C; half way
Is the brine tank clean?
No
Is a lid fitted to the brine tank?
Yes
Is there water in the brine tank?
Yes
Are the services the unit supplies well used?
Not known - presumed yes
Comments:
Oakleaf Technical Services Ltd
Page 38 of 56
Report Ref: 0000/RA-00
Client Name
Water Softeners st
Water Softeners: WS 3 - 1 floor sitting area cupboard
Is the unit online?
Yes
Is the unit free from leaks?
Yes
Is the bypass closed?
No
Is the brine tank filled with salt?
Yes â&#x20AC;&#x201C; half full
Is the brine tank clean?
No
Is a lid fitted to the brine tank?
Yes
Is there water in the brine tank?
No
Are the services the unit supplies well used?
Not known
Comments: Unit appears to be being by-passed
Oakleaf Technical Services Ltd
Page 39 of 56
Report Ref: 0000/RA-00
Client Name
Air Handling Units Unit number and make and model:
AHU 1 â&#x20AC;&#x201C; Roof space above main Boiler Room
Type of unit:
Ventilation only
Location of access:
External access â&#x20AC;&#x201C; rear of building
Type and size of access:
Ladder access onto roof
Access available to all sections
Yes
Unit serves:
Whole building
State of operation:
Online
Period of operation:
Unsure
Internal access granted:
No
Method of chilling:
N/A
Method of heating:
Battery
Method of humidification:
None
Water pooling in any part of the unit: (State where)
Not known
Drip tray present:
N/A
Correct fall to drain:
N/A
Condition of drain assembly:
N/A
Corrosion, sediments or debris present:
Unit is clean
Trap/U-bend present: (State material)
N/A
Trap/U-bend filled with water: (State condition)
N/A
Intake protected from rainwater:
Yes
Intake wet:
No
Unit overall condition:
Good
Oakleaf Technical Services Ltd
Page 40 of 56
Report Ref: 0000/RA-00
Client Name
Air Handling Units Unit number and make and model:
AHU 2 / AHU 3 / AHU 4
Type of unit: Location of access: Type and size of access: Access available to all sections Unit serves: State of operation: Period of operation: Internal access granted: Method of chilling: Method of heating: Method of humidification: Water pooling in any part of the unit: (State where) Drip tray present: Correct fall to drain: Condition of drain assembly: Corrosion, sediments or debris present: Trap/U-bend present: (State material) Trap/U-bend filled with water: (State condition) Intake protected from rainwater: Intake wet: Unit overall condition:
Oakleaf Technical Services Ltd
Page 41 of 56
Report Ref: 0000/RA-00
Client Name
Distribution Systems General Throughout The Site Are all CWS outlets <20째C within 2 mins? (Tanked)
No
Are all MCW outlets <20째C within 2 mins?
Yes
Are all HWS outlets >50째C within 1 minute? (Unblended only)
Yes
Are all outlets clean?
No
Are there low use areas?
Yes
Are there any dead legs? > 350 mm
Yes
Are the showers well used?
Not all
Are shower heads clean?
No
Are TMV blended pipework distances <2 meters?
Presumed yes
Do the TMVs record temperatures of 41째C?
No
Are TMVs included in the PPM Programme?
No
Are all materials WRC approved?
Yes
Oakleaf Technical Services Ltd
Page 42 of 56
Report Ref: 0000/RA-00
Client Name
Distribution Systems Data Location Ground Floor B010 Toilet B011 B012 Toilet 01 B013 Bathroom
B017 B014 B015 B016 HMC 02 Sluice Laundry Dining Area Salon Staff Changing Toilet Staff Area
Oakleaf Technical Services Ltd
Outlet ID
1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x SH 1x WC 1x WHB 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x Sink
HWS 째C
TCWS 째C
MCW 째C
TMV No
TMV Make
19
1
Not known
19
2
Not known
19
3
Not known
19
4
Not known
5
Not known
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
No access. Presumed as BO10 Electric 34
19
6 7
Not seen Not known
19
8
Not known
19
9
Not known
19
10
Not known
55
Suspected TMV- boxing
No access.
3x WMc 2x Sink 1x Sink 2x WHB 1x WHB 1x WC 1x WHB 1x WC 1x DWB
60 62 60
60
Page 43 of 56
19
Report Ref: 0000/RA-00
Y
1 hot tap no flow.
Y
Not working
Client Name
Location
Outlet ID
(Room 118 cont.) Room 117
1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x BA 1x SH 1x WHB 1x WC 1x WHB 1x Sluice 1x WHB 1x WC 1x WHB 1x WC
Room 124
Bathroom SW1
Sluice SW110 SW111 SW116 SW115 SW112 SW114 SW113 1st Floor - EMI B103 B102 B101 B104 B105 B106 Bath 103
Oakleaf Technical Services Ltd
HWS 째C
TCWS 째C
MCW 째C
TMV No
TMV Make
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
37
Not seen
Suspected TMV- boxing
38
Not seen
Suspected TMV- boxing
39
Not seen
Mixer on bath Suspected TMV- boxing
40
Not known
41
Not seen
Suspected TMV- boxing
42
Not seen
Suspected TMV- boxing
43
Not seen
No access. Presumed as SW111 No access. Presumed as SW111 No access. Presumed as SW111 No access. Presumed as SW111 Suspected TMV- boxing
44
Not known
42
38
22
1x WHB 1x WC
1x WHB 1x WC
1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
45
Not known
46
Not known
47
Not known
48
Not known
49
Not known
22
No access. Presumed as B103
Page 44 of 56
Report Ref: 0000/RA-00
Client Name
Location
B110 B107 B109 B108 HMC 101 Synagogue S101 Female WC101 Bath 102
B115 B119 B116 B117 B118 B111 B114 B113 B112 Male WC102 B132 B131 B130
Oakleaf Technical Services Ltd
Outlet ID 1x HB 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
HWS 째C
TCWS 째C
MCW 째C
TMV No
TMV Make
50
Not known
51
Not known
52
Not known
53
Not known
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
No access No access No access Hot seized, no flow.
1x WHB 1x WC 1x WC 1x WHB 1x SH
20
34
54
Not seen
1x WHB 1x WC
55
Not known
1x WHB 1x WC
21
56
Not known
1x WHB 1x WC
57
Not known
1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB
58
Not known
59
Not known
45
21
60
Not seen
Suspected TMV- boxing
61
Not seen
Suspected TMV- boxing
62
Not seen
Suspected TMV- boxing
Y
Suspected TMV- boxing Electric No access. Presumed as B116 No access. Presumed as B116
No access. Presumed as B116
No access. Presumed as B116
No access. Presumed as B116
Page 45 of 56
Report Ref: 0000/RA-00
Client Name
Location
Outlet ID
HWS °C
TCWS °C
MCW °C
TMV No
TMV Make
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
1x WC Sluice 102 HMC 102 B121 (B121 cont.) B122 B123 B120 B124
B125 Bathroom 101
B126 B129 B128 B127 2nd Floor – EMI B221 B222 B225 Assisted Bathroom
Oakleaf Technical Services Ltd
No access 1x Sink 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
57
21
63
Not known
64
Not known
65
Not known
21
66
Not known
67
Not known
1x WHB 1x WC 1x WHB 1x WC 1x BA 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
68
Not known
44
69
Not seen
70
Not known
71
Not known
72
Not known
73
Not known
42
24
74 75
Not seen Not known
76
Not known
53
1x WC 1x WHB 1x WHB 1x WC 1x WHB 1x WC 1x HB 1x WHB 1x WC
Suspected TMV- boxing With shower head
Suspected TMV- boxing Y
Y
Page 46 of 56
Report Ref: 0000/RA-00
Shower head
Client Name
Location
Outlet ID
B220
1x WHB 1x WC 1x WHB 1x WC 1x WC 1x WHB
B219 Toilet B218 B223 B216 B217 2nd Floor – Sugar Wing SW213 SW214 SW215 SW212 SW216 SW211 SW210 Bed Pan SW2 Bath SW2
Room 217
Room 224
Room 218
Oakleaf Technical Services Ltd
HWS °C
TCWS °C
MCW °C
TMV No
TMV Make
77
Not known
78
Not known
79
Not known
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
Y No access. Presumed as B222 No access. Presumed as B222 No access. Presumed as B222 No access. Presumed as B222
1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
43
20
80
Not seen
81
Not seen
82
Not seen
Suspected TMV- boxing
83
Not seen
Suspected TMV- boxing
84
Not seen
Suspected TMV- boxing
1x WHB 1x WC
85
Not seen
No access. Presumed as 213 Suspected TMV- boxing
1x SH 1x BA 1x WHB 1x WC 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC
Suspected TMV- boxing Y
Unoccupied. Suspected TMV- boxing
No access On bath mixer
N 36
30
86
Not seen
Suspected TMV- boxing
87
Not seen
Suspected TMV- boxing
88
Not seen
Shower head missing Suspected TMV- boxing
89
Not seen
Suspected TMV- boxing
Y
Page 47 of 56
Report Ref: 0000/RA-00
Client Name
Location
Room 223
Room 219
Room 222
Room 220
Room 221
2nd Floor - EMI Sluice B226 B225 Toilet Toilet Toilet
Kitchen B201 B204 B202
Oakleaf Technical Services Ltd
Outlet ID 1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x WHB 1x WC 1x SH 1x Sluice 1x Sink 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x SH 1x Sink 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC
HWS 째C
TCWS 째C
MCW 째C
TMV No
TMV Make
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels)
90
Not seen
Suspected TMV- boxing
91
Not seen
Suspected TMV- boxing
92
Not seen
Suspected TMV- boxing
93
Not seen
Suspected TMV- boxing
94
Not seen
Suspected TMV- boxing
27
21
95
Not seen
Suspected TMV- Boxing
96
Not seen
Suspected TMV- Boxing
97
Not known
98
Not known
38 37
99 100
Not known Not known
37
101
Not known
37
102
Not known
Page 48 of 56
1 cistern. 1 outlet with shower head.
TMV mixer tap Electric 19
Report Ref: 0000/RA-00
Client Name
Location
Outlet ID
B203
1x WHB 1x WC
Store 203 Store 204 B215
Store 206 HMC 202 Bath 203 B206 B207
B205 B208 B209 B210 B211 B213
B214 3rd Floor – Sugar Wing On-call room SW313 SW314 SW315 SW312
Oakleaf Technical Services Ltd
1x WC 1x BA 1x WHB 1x Sink 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x WC 1x WHB 1x SH 1x WC 1x WHB
HWS °C 37
TCWS °C
59
21
31
MCW °C
TMV No
TMV Make
103
Not known
104
Douglas
105
Not seen
106
Not seen
Water Heaters
Outlets Scaled?
Low Use / Deadleg
Y Y Y
Comments (to inc. Drinking Water + Scald Labels)
No access No access Unoccupied Unoccupied Unoccupied No access
Suspected TMV- boxing No access. Presumed as B205.
Y
Suspected TMV- boxing Mira
107
Not seen
Suspected TMV- boxing
108
Not seen
Suspected TMV- boxing
109
Not known
110
Not known
111
Not seen
112
Not known
Suspected TMV- boxing Electric
No access. Presumed as B213 1x SH 1x WHB
1x WHB 1x WC
No access No access No access. Presumed as 312 No access. Presumed as 312 No access. Presumed as 312 52
Page 49 of 56
21
Report Ref: 0000/RA-00
Client Name
Location
Outlet ID
SW Bath 3
1x WC 1x SH 1x HB 1x WHB 1x WHB 1x WC 1x Sluice 1x SH 1x BA
SW311 Sluice SW310 Sluice SW1 Bath SW3
Room 322
Room 317
Room 321
Room 318
Room 320
Room 319
Oakleaf Technical Services Ltd
MCW 째C
TMV No
TMV Make
Water Heaters
Outlets Scaled?
1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC 1x WHB 1x SH 1x WC
Low Use / Deadleg Y
Y 54 53
Comments (to inc. Drinking Water + Scald Labels) Mira- Not used With shower head
Mixer
43
30
113
Not seen
45
26
114
Not seen
N
No access With shower
Y
Suspected TMV- boxing. Presumed MCWS Low use unoccupied Suspected TMV- boxing. Presumed MCWS. Low use unoccupied Mixer. Low use unoccupied.
1x WC 1x WHB
Room 316
TCWS 째C
1x BA 1x WC 1x WHB
Room 323
HWS 째C
Y Y Y
45
26
115
Not seen
Suspected TMV- boxing
45
26
116
Not seen
Suspected TMV- boxing
45
26
117
Not seen
Suspected TMV- boxing
45
26
118
Not seen
Suspected TMV- boxing
45
26
119
Not seen
Suspected TMV- boxing
45
26
120
Not seen
Suspected TMV- boxing
Page 50 of 56
Report Ref: 0000/RA-00
Client Name
Location
Outlet ID 1x WHB 1x SH
HWS 째C 45
TCWS 째C 26
MCW 째C
TMV No
TMV Make
121
Not seen
Water Heaters
Outlet Totals: Sinks + WHB TMVs Showers CWST Cals Water Heaters
Oakleaf Technical Services Ltd
178 142 36 4 5 0
Page 51 of 56
Report Ref: 0000/RA-00
Outlets Scaled?
Low Use / Deadleg
Comments (to inc. Drinking Water + Scald Labels) Suspected TMV- boxing
Client Name
9.0
Oakleaf Technical Services Ltd
Schematic Plan
Page 52 of 56
Report Ref: 0000/RA-00
Client Name
10.0
Legionnaires Disease History and Information
Legionnaires' disease was first identified following a large outbreak of pneumonia among people who attended an American Legion Convention in Philadelphia in 1976. A previously unrecognised bacterium was isolated from lung tissue samples which were subsequently named Legionella pneumophila. Legionnaires' disease is a potentially fatal form of pneumonia which can affect anybody, but which principally affects those who are susceptible because of age, illness, immunosuppression, smoking etc. It is caused by the bacterium Legionella pneumophila and related bacteria. Legionella bacteria can also cause less serious illnesses which are not fatal or permanently debilitating. The collective term used to cover the group of diseases caused by Legionella bacteria is Legionellosis. It is normally contracted by inhaling Legionella bacteria, either in tiny droplets of water (aerosols), or in droplet nuclei (the particles left after the water has evaporated) contaminated with Legionella, deep into the lungs. There is evidence that the disease may also be contracted by inhaling Legionella bacteria following ingestion of contaminated water by susceptible individuals. Person-to-person spread of the disease has not been documented. Initial symptoms of Legionnaires' disease include high fever, chills, headache and muscle pain. Patients may develop a dry cough and most suffer difficulty with breathing. About one third of patients infected also develop diarrhoea or vomiting and about half become confused or delirious. Legionnaires' disease can be treated effectively with appropriate antibiotics. The incubation period is between 2-10 days (usually 3-6 days). Not everyone exposed will develop symptoms of the disease and those that do not develop the 'full blown' disease may only present with a mild flu-like infection. Infection with Legionella bacteria can be fatal in approximately 12% of reported cases. This rate can be higher in a more susceptible population; for example, immunosuppressed patients, or those with other underlying-disease. Certain groups of people are known to be at higher risk of contracting Legionnaires' disease; for example, men appear more susceptible than women, as do those over 45 years of age, smokers, alcoholics, diabetics and those with cancer or chronic respiratory or kidney disease. The disease is usually diagnosed by a combination of tests. The organism may be cultured from the patient's sputum, bronchial washings or lung tissue. Alternatively, tests are used to measure the presence of antibodies in the blood and, increasingly, tests are available to measure specific antigens in the patient's urine. L. pneumophila is also responsible for a short feverish form of the illness without pneumonia, known as Pontiac fever. Its incubation period is typically between 2-3 days. Another species of Legionella, L. micdadei, is responsible for a similar form of the illness without pneumonia called Lochgoilhead fever after an outbreak in Lochgoilhead, Scotland. The incubation period can be up to 9 days. A high percentage of those exposed to this agent tend to be affected. However, there have been no recorded deaths associated with either Pontiac or Lochgoilhead fevers. To date, approximately 40 species of the Legionella bacterium have been identified. L. pneumophila causes about 90% of cases. Sixteen different serogroups of L. pneumophila have been described; however, L. pneumophila serogroup 1 is most commonly associated with cases of Legionnaires' disease in the UK. L. pneumophila serogroup 1 can be further sub-divided to distinguish between strains most commonly associated with Legionnaires' disease. Additionally, 'genetic fingerprinting' methods such as Restriction Fragment Length Polymorphism (RFLP) and Amplified Fragment Length Polymorphism (AFLP) can be valuable tools in the investigation of outbreaks. Such methods of typing can sometimes provide a means of linking the organisms isolated from patients to the sources of cases of outbreaks.
Oakleaf Technical Services Ltd
Page 53 of 56
Report Ref: 0000/RA-00
Client Name
Cases of Legionnaires' disease have occurred among staff in the workplace (factories, offices, shops and hospitals); visitors (delivery drivers) and members of the public (patients, hotel guests or passersby). Natural History of the Legionella Bacterium Legionella bacteria are common and can be found naturally in environmental water sources such as rivers, lakes and reservoirs, usually in low numbers. Legionella bacteria can-survive under a wide variety of environmental conditions and have been found in water at temperatures between 6°C and 60°C. Water temperatures in the range 20°C to 45°C seem to favour growth. The organisms do not appear to multiply below 20°C and will not survive above 60°C. They may, however remain dormant in cool water and multiply only when water temperatures reach a suitable level. Temperatures may also influence virulence; Legionella bacteria held at 37°C have greater virulence than the same Legionella bacteria kept at a temperature below 25°c. Legionella bacteria also require a supply of nutrients to multiply. Sources can include, for example, commonly encountered organisms within the water system itself such as algae, amoebae and other bacteria. The presence of sediment, sludge, scale and other material within the system, together with biofilms, are also thought to play an important role in harbouring and providing favourable conditions in which the Legionella bacteria may grow. A biofilm is a thin layer of micro-organisms which may form a slime on the surfaces in contact with water. Such biofilms, sludge and scale can protect Legionella bacteria from temperatures and concentrations of biocide that would otherwise kill or inhibit these organisms if they were freely suspended in the water. As Legionella bacteria are commonly encountered in environmental sources they may eventually colonise manufactured water systems and can be found in cooling tower systems, hot and cold water systems and other plant which use or store water. To reduce the possibility of creating conditions in which the risk from exposure to Legionella bacteria is increased, it is important to control the risk by introducing measures which: (a) Do not allow proliferation of the organisms in the water system; and (b) Reduce, so far as is reasonably practicable, exposure to water droplets and aerosol.
Oakleaf Technical Services Ltd
Page 54 of 56
Report Ref: 0000/RA-00
Client Name
11.0
Control of Legionellosis â&#x20AC;&#x201C; Legislation (ACoP L8)
Duties under the HSWA extend to risks from Legionella bacteria which may arise from work activities. The MHSWR (Management of Health and Safety at Work Regulations) provide a broad framework for controlling health and safety at work. As well as requiring risk assessments, they also require employers to have access to competent help in applying the provisions of health and safety law; to establish procedures to be followed by any worker if situations presenting serious and imminent danger were to arise; and for co-operation and co-ordination where two or more employers or self employed persons share a workplace. Only the courts can give an authoritative interpretation of law in considering the application of the ACoP L8 to people working under another's direction, the following should be considered: if people working under the control and direction of others are treated as self employed for tax and national insurance purposes they may nevertheless be treated as their employees for health and safety purposes. It may therefore be necessary to take appropriate action to protect them. If any doubt exists about who is responsible for the health and safety of a worker this could be clarified and included in the terms of a contract. However, it should be remembered that a legal duty under section 3 of HSWA (Health and Safety at Work Act) cannot be passed on by means of a contract and there will still be duties towards others under section 3 of HSWA. If such workers are employed on the basis that they are responsible for their own health and safety, legal advice should be sought before doing so.
ACOP More specifically the COSHH Regulations-provide a framework of actions designed to control the risk from a range of hazardous substances including biological agents. The essential elements of COSHH are: (a) Risk Assessment; (b) Prevention of exposure or substitution with a less hazardous substance if this is possible, or substitution of a process or method with a less hazardous one; (c) Control of exposure where prevention or substitution is not reasonably practicable; (d) Maintenance, examination and testing of control measures, e.g. automatic dosing equipment for delivery of biocides and other treatment chemicals; (e) Provision of information, instruction and training for employees; and (f) Health surveillance of employees (where appropriate, and if there are valid techniques for detecting indications of disease) where exposure may result in an identifiable disease or adverse health effect. The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995 (RIDDOR) require employers and others, e.g. the person who has control of work premises, to report to HSE, accidents and some diseases that arise out of or in connection with work. Cases of Legionellosis are reportable under RIDDOR if a doctor notifies the employer and if the employee's current job involves work on or near cooling systems that use water or hot water service systems in the workplace. Those who have, to any extent, control of premises, have a duty under the Notification of Cooling Towers and Evaporative Condensers Regulations 1992 to notify the local authority in writing with details of 'notifiable devices'. These consist of cooling towers and evaporative condensers, except when they contain water that is not exposed to the air and the water and electricity supply are not connected. Although the requirement is to notify the local authority, the Regulations are enforced by
Oakleaf Technical Services Ltd
Page 55 of 56
Report Ref: 0000/RA-00
Client Name
the relevant authority for the premises concerned. If a tower becomes redundant and is de commissioned or dismantled, this should also be notified. The main purpose of these Regulations is to help in the investigation of outbreaks. The Safety Representatives and Safety Committees Regulations 1977 and the Health and Safety (Consultation with Employees) Regulations 1996 require employers to consult trade union safety representatives, other employee representatives, or employees where there are no representatives, about health and safety matters. This includes changes to the work that may affect their health and safety at work, arrangements for getting competent help, information on the risks and controls, and the planning of health and safety training.
The above sections 10 and 11 are extracts from:
Legionnairesâ&#x20AC;&#x2122; Disease The Control of Legionella Bacteria in Water Systems APPROVED CODE OF PRACTICE AND GUIDEANCE L8
Oakleaf Technical Services Ltd
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Report Ref: 0000/RA-00