Tonkin Consulting

Waterproofing Playford

City of Playford

Waterproofing Playford

City of Playford

Waterproofing Playford

The City of Playford is embarking on an Integrated Water Management Plan known as ‘Waterproofing Playford’.   It aims to conserve water through various innovative water management policies, strategies and projects.  Six major supply areas, in addition to several community bores, were identified to serve a total of 106 new customers consisting of 80 parklands/reserves/sportsfields and 26 schools.  The total peak demand is approximately 300 L/s with a reticulation network of approximately 78 km.

Tonkin Consulting was engaged to carry out the concept design of the distribution network using hydraulic modelling.  In addition, the scope included water hammer analysis of the network at various implementation stages.  The outcomes of the project were to assist the City of Playford in design requirements and with the application for additional government funding for the project.

The project involved the use of a hydraulic model built using WaterGEMS to design the distribution network and to analyse various scenarios.  The hydraulic modelling found a major opportunity to reduce capital expenditure without compromising on connection numbers and service delivery.  Further optimisation to improve performance was carried out using Demand Scheduling which minimised the need for larger infrastructure requirements, such as pumps and additional pipelines.  The water hammer analyses involved the use of HAMMER to investigate two operational events: sudden pump stoppage due to power failure events; and rapid valve closure.

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