Feasibility Assessment for Managed Aquifer Recharge - Joynton Avenue Re-Development Site
Client: City of Sydney
Year: 2007
WRL Technical Report: Feasibility Assessment for Managed Aquifer Recharge - Joynton Avenue Re-Development Site, Stages 1 and 2 (2007/25)
Managed aquifer recharge (MAR) includes enhanced recharge, intentional storage and treatment of water in aquifers. By increasing stormwater infiltration (and therefore decreasing stormwater runoff), MAR projects may also reduce the severity of flooding in an area. Flood mitigation, in particular flood depths and flow velocities, are a major concern for the City of Sydney at the Joynton Avenue Re-Development site in Zetland. Consequently, WRL was commissioned by the City of Sydney in 2007 to assess the feasibility of using MAR to reduce the flooding potential of the site. For MAR to be appropriate, it is required that subsurface conditions at the site are suitable.
WRL initiated this task by reviewing MAR in the context of the Botany aquifer and the Joynton Avenue site. Groundwater monitoring bores were installed at the site to study the underlying stratigraphy and groundwater levels. While the potential for MAR at the site was found to be limited by shallow watertables, the hydrogeological conditions were otherwise favourable. Neighbouring contaminated sites and regulatory approvals were flagged as issues which need to be considered by the City of Sydney before continuing with further investigations.
For further information about UNSW experitise in MAR assessment, please visit the Connected Waters Initiative
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