Question regarding the feasibility of using underground coal voids in Collie for water storage, specifically addressing capacity, water quality, salinity, and acidity. The Minister confirms investigations are ongoing, with results pending.

AnsweredQoN 4466Legislative Council
Asked
20 March 2007
Portfolio
Water Resources

QuestionView source ↗

In relation to the underground coal voids in Collie -
(1) Has the Minister assessed the capacity to store water in these underground coal voids?
(2) Has the Minister investigated -
(a) water quality;
(b) salinity; and
(c) acidity?
(3) If yes to (1) and (2), what were the outcomes of these investigations/
(4) If no to (1) and (2), why not?

AnswerView source ↗

Answered
1 May 2007
Responded by
Leader of the House representing the Minister for Water Resources
Response time
42 days
(b) salinity; and (c) acidity?
(c) acidity?
(2)(a - c) Yes, the void water and groundwater surrounding the void have been and continue to be monitored for water levels, acidity, salinity, heavy metals and major ions. (3) The outcomes of these investigations are still to be determined. The DoW will make this information available on completion of the investigations. (4) Not applicable.
(3) The outcomes of these investigations are still to be determined. The DoW will make this information available on completion of the investigations. (4) Not applicable.
(4) Not applicable.

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