Annual Report 2010 - Christchurch City Council

p114. Annual Report
Christchurch Otautahi
2010
Council activities and
services
Water supply
Council activities and services
Water supply
Where are we heading?
The Health (Drinking Water ) Act 2007 requires public water
supplies to meet the Drinking Water Standards. This is the driver
for the programme of water treatment plant upgrade works on
Banks Peninsula.
Duvauchelle water treatment plant will be upgraded and
commissioned in 2010/11 financial year. A new fire main will be
constructed in Rapaki.
A new reservoir will be constructed in Wainui to increase storage
capacity in the township.
Design work will progress in 2010/11 on upgrading the Akaroa
water treatment plants to meet the New Zealand Drinking Water
Standards and on strengthening the water sources feeding the
Akaroa plant. Design work will commence on upgrading the Little
River water treatment plant and associated reticulation system.
Design work on reticulating water to Charteris Bay will progress
in 2010/11 with construction planned to start the following year.
This work will be conducted at the same time as the wastewater
reticulation works.
A new water booster pump station will be constructed in the
Ferrymead area. This is part of a number of works being carried out
to increase security of supply to the Lyttelton Harbour area.
Backflow prevention, well renewal, water mains and submain
renewal and lead detection programmes will progress in line with
the asset management plans. The asset management plans are
designed to ensure these programmes are in place to maintain
levels of service and manage risk within acceptable levels.
Review of the restricted water supply areas and upgrading of the
water network automation and monitoring systems will continue
in the 2010/11 year. This is to increase their reliability and provide
consistency in the levels of service within Banks Peninsula.
Work programmed in the water strategy will progress as detailed
in the strategy. This strategy sets out a framework for providing
a sustainable drinking water supply in Christchurch & Banks
Peninsula into the future. A large number of actions are detailed
in the strategy with actions to be taken in the coming year
including a pressure management study and a rainwater tanks
for Akaroa study.