❓ This Question on Notice seeks information regarding the EPA approval and discharge methods for hypersaline water from the Kwinana desalination plant into Cockburn Sound. The answer details the discharge method and references publicly available documents for specific requirements.
AnsweredQoN 1510Legislative Assembly
QuestionView source ↗
With reference to the Kwinana desalination plant, currently under construction, I ask –
(1) Has Environmental Protection Authority approval been granted for the discharge of hypersaline water into Cockburn Sound?
(2) If so, how will such water be discharged and what conditions have been imposed by the Environmental Protection Authority?
(3) If not, when is approval expected?
(1) Has Environmental Protection Authority approval been granted for the discharge of hypersaline water into Cockburn Sound?
(2) If so, how will such water be discharged and what conditions have been imposed by the Environmental Protection Authority?
(3) If not, when is approval expected?
AnswerView source ↗
Answered
25 October 2006
Responded by
Minister for Water Resources
Response time
29 days
(2) The brine from the desalination plant will be discharged to Cockburn Sound via a 160 metre long diffuser having forty ports. This will ensure that the discharge is rapidly mixed and that the salinity is within a few percent of background values within 50 metres of the diffuser. The specific requirements for the desalination plant discharge are too detailed to list here but are specified in two publicly available documents - Ministerial Conditions Statement 655 and the Operating Licence Number 8108/1. (3) Not applicable.
(3) Not applicable.
(3) Not applicable.
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