Armadale-Kelmscott Water Scheme Planning - Water Corporation
The Water Corporation’s Armadale-Kelmscott Water Scheme covers a large area to the south-east of Perth. It encompasses developing land to the south of Armadale and Byford plus land in the Perth foothills below the Canning and Wungong Dams.
This is a complex area in terms of water supply due to the range of topography and the supply from trunk main offtakes. As the Perth water supply system has developed the supply to areas like Armadale-Kelmscott have become significant constraints on operation of the trunk mains.
A review of the investment plan for Armadale-Kelmscott was required due to the continuing land development activity, the need to reduce reliance on the direct trunk main supply and due to issues in the elevated hills supply areas.
- The Water Corporation engaged WISE to undertake this plan review. WISE developed the project scope identifying a staged approach as follows:
- Preparation of a snapshot of the current issues and risks for the scheme
- An assessment of the existing scheme including a review of growth and demand, hydraulic modelling of current performance (using Infoworks WS Pro) including calibration against summer pressure monitoring and SCADA data.
- Identify options for evaluation to address issues identified from the previous steps.
- Investigate critical approvals - one of the identified options requires a large tank and a paper was prepared discussing 4 potential site options to initiate investigation of approval constraints to inform the option evaluation. Option evaluation, including hydraulic modelling.
- Option comparison and selection of the recommended option
To date WISE has completed the first 4 stages with the remaining 2 stages expected to be undertaken in 2023.