Annual report 2012 2013 5 November upload

Page 66

SEWERAGE AND THE TREATMENT AND DISPOSAL OF SEWAGE

Sewerage

AND THE TREATMENT AND DISPOSAL OF SEWAGE

Reticulation Systems, Effluent Quality

Overview

The Oxford Waste Water Treatment Plant has

The repair of earthquake damaged sewer infrastructure

continued to experience issues with high wet

is now well underway with the completion of the Kaiapoi

weather flows. It is proposed to construct a holding

and Rangiora relining contracts, the commencement of

pond on the inflow to the treatment plant to balance

the Deep Sewer and the Shallow Sewer contracts and

the high flows. This work is planned to be completed

the tendering of the Kaiapoi pump station repairs works.

by June 2014.

The existing system in the Red Zone remains functional, but is progressively being abandoned as demolition

The closed circuit television work has focused primarily

work progresses.

on identification of earthquake damaged infrastructure this year. The programme for closed circuit television

The Mandeville, Ohoka Meadows and Swannanoa

inspection in 2013/14 will focus on condition assessment

sewer schemes have been connected into the Eastern

and infiltration identification for the purposes of

Districts Sewer Scheme, with the construction of

determining the future renewals programme.

the Bradleys Road pump station, the Mandeville to Rangiora pipe line and associated pipework in

The effluent quality from the District's existing

Mandeville. This has allowed for the decommissioning

wastewater treatment plants has generally complied

of the three existing treatment plants at Mandeville,

with the resource consent conditions, except for two

Ohoka Meadows and Swannanoa and it has also given

non-compliances at the Oxford Waste Water Treatment

an opportunity to provide reticulated wastewater to

Plant relating to wet weather overflows. All other

properties in Ohoka.

conditions have generally been graded as compliant.

64

Investigation has been undertaken into the long term options to improve the financial sustainability of the Loburn Lea and Fernside sewer schemes. The results from the Loburn Lea investigation did not identify any favourable option to reduce the sewer rates however, further investigation is currently being undertaken to assess alternative options. The preliminary results from the Fernside investigation suggest that the best option is to connect into the Eastern Districts Sewer Scheme via Rangiora when the proposed development in the area occurs. The Council's 2013 Customer Satisfaction survey showed that 99% of respondents, who expressed an opinion, were satisfied with the standard of service they received from the Council sewer scheme. This is the same as satisfaction level from the previous survey in 2010.

Waimakariri District Council 130802059252


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