The Christchurch Water Supply Rezoning Projec
Annual Conference
❄
The Christchurch Water Supply Strategy 2009-2039 set out a number of goals, objectives and targets for the water supply. A number of projects were identified that were aimed at reducing system consumption and leakage in order to defer or potentially avoid the need for an additional major water source for the city that would be required if the predicted city growth occurred without a significant reduction in per capita consumption.
The Canterbury earthquakes highlighted a number of significant issues related to the open nature of the current Christchurch water supply that impeded the response and recovery work and could be improved by re-zoning the system into smaller management zones. Additionally, the network is now somewhat more “vulnerable” as a result of the earth movement and action is required to protect the weakened assets and potentially extend asset life.
In response to the above, Christchurch City Council (CCC) instigated a project with the identified drivers of;