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Monday, 05 June 2017 08:18

Perth to use groundwater replenishment scheme to drought-proof city

The Environmental Protection Authority (EPA) in Australia has approved an application for a groundwater replenishment scheme as part of a climate-resilient water supply for the city of Perth’s integrated water supply scheme. In a drying climate,

The scheme, developed by the Water Corporation, the Western Australian water authority, is a key component of a 50 year water resource plan.

The scheme includes the construction of an Advanced Water Recycling Plant (AWRP) and water recharge and conveyance infrastructure to recharge up to 14 gigalitres per annum (GL/a) of recycled water to the Leederville and Yarragadee aquifers.

Groundwater replenishment is the process where secondary treated wastewater undergoes advanced treatment to produce recycled water. The water is recharged into aquifers to ‘top-up’ groundwater supplies in a drying climate.

Once constructed, a 12.8 kilometre recharge pipeline will be used to convey recycled water that meets Australian drinking water standards to the southern and northern recharge sites.

Having assessed the proposal, the EPA has concluded that the proposal is environmentally acceptable.

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