Water Corporation proposes to upgrade the capacity of the Perth Metropolitan Desalination Proposal from the originally approved 30 GL per year to 45 GL per year for the Kwinana Power Station (KPS) site only. The proposed changes include increasing the use of seawater (from 220ML per day average to 300ML per day average), production of potable water (from greater than 100ML per day to greater than 150ML per day) and discharge of concentrated seawater (from 120ML to 180ML per day (weekly average)). The proposal also includes further options for combining intake seawater with cooling water discharged from Western Power’s Kwinana Power Station.

Inquiry under s46 to amend Ministerial Statement 626.