Country: Australia
Key Area: Water
Services: Water Asset Management
In response to the drought experienced in South East Queensland (SEQ), the State Parliament passed the Water Amendment Regulation (No6) 2006. The Regulation required Water Service Providers (WSP) in SEQ to participate in a Pressure and Leakage Management Project (PLMP).
Opus was commissioned by Redland Water and Waste (RWW) to help deliver Redland’s obligations under the legislation and to establish an efficient leakage management system based on international best practice but tailored to the specific, long term needs of Redland Water.
Early stages of the project included the development of methodologies for the design and implementation of district metering and pressure management and the compilation of a detailed planning report and a system leakage management plan, required to support state subsidy applications.
The design phase of the project covered the entire Redlands network, including the Southern Moreton Bay and North Stradbroke Islands, comprising some 50,000 connections and 1,200km of mains. An initial desktop design was followed by detailed network modelling to test the design against the desired standards of service. Outputs from the design included:
- 31 District Metered Areas (DMA); including 4 ‘trunk main’ DMA
- 17 Pressure Managed Areas (PMA);
- Detailed design of 22 new meter and PRV installations.
- Advice on DMA commissioning and development of procedures for lock-in, PZT etc;
- Review of system pressures and assessment of PRV set points;
- Night line analysis and leakage targets (based on BABE theory); and
- Development of operational and maintenance procedures.
