A WA parliamentary question on notice regarding water overuse from the Gnangara Mound, focusing on licensed and unlicensed bore usage and government management strategies. The answer reveals challenges in identifying unlicensed bores and defends the government's approach to water resource management.

AnsweredQoN 2851Legislative Council
Asked
23 September 2010
Portfolio
Water

QuestionView source ↗

I refer to the answer the Parliamentary Secretary gave for question No. 2651, regarding the nearly one billion litres of water overused in excess of their licensed water allocation from the Gnangara Mound, and further ask -
(1) What are the names and addresses of the licensees who have exceeded their water allocation license by more than five percent?
(2) The metering project has seen roughly 10 percent of the licensed bores be metered, what are modelled predictions for the other 12 500 licensed bores across the Gnangara Mound?
(3) Does the Department of Water know where every single licensed and unlicensed bore is located on the Gnangara Mound?
(4) Why is the Government sending mixed signals about water use by allowing unlicensed bore owners to water their gardens three days a week, while refusing to do anything about flagrant abuse of allocations by licensed users?

AnswerView source ↗

Answered
10 November 2010
Responded by
Parliamentary Secretary representing the Minister for Water
Response time
48 days
This 4 part question required a considerable amount of time for the Department of Water to supply an answer for.
(1) It is inappropriate to put this information on the public record as it could compromise the ongoing Department of Water's (DoW) investigations.
(2)  I refer the Hon Member to the recently released
Gnangara groundwater areas allocation plan November 2009
that explains how groundwater abstraction on the Gnangara Mound is managed to meet the need of current and future water users.
(3)  The location of all licensed bores is known to the DoW. The location is known of approximately 70% of the estimated number of unlicensed bores.
(4) The Government is quite clear in its management of the State's water resources.  The use of unlicensed garden bores in appropriate areas lessens the demand on the high quality treated scheme water and without these garden bores water available for Perth would be considerably less. But that is not to say their use should not be controlled and the three-day-a-week use is fitting as it does not create unacceptable impacts and encourages efficiencies. The Hon Member's question on compliance of licensed water use has been answered previously in question on notice 2796.
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