❓ Provides data on the storage capacity and water abstraction rates for the Gnangara Mound/System and Yarragadee Aquifer in 2006, addressing concerns about water resource management.
AnsweredQoN 2590Legislative Assembly
QuestionView source ↗
(a) Gnangara Mound; and
(b) Yarragadee Aquifer?
(b) Yarragadee Aquifer?
AnswerView source ↗
Answered
18 September 2007
Responded by
Minister for Water Resources
Response time
35 days
(a) The maximum storage capacity of the superficial aquifer (Gnangara Mound) has been estimated at 18 700GL. The total abstraction of water from this aquifer for 2006 was 230GL, which represents 1.2% of the maximum storage capacity.
The maximum storage capacity of the Gnangara System has been estimated at 171 700 GL. The total abstraction from the Gnangara System in 2006 is estimated at 346 GL, which represents 0.002% of the estimated maximum storage capacity.
(b) The maximum storage capacity of the Yaragadee aquifer in the Perth region is estimated at approximately 180 000 GL. However only 76000GL of this is fresh water (salinity less than 1000mg/L TDS) with 57 000GL of this comprising the Gnangara System. The total abstraction of water from this aquifer for 2006 is estimated at 51GL which represents 0.0009% of the estimated 57 000GL of fresh water in this aquifer within the Gnangara System.
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The maximum storage capacity of the Gnangara System has been estimated at 171 700 GL. The total abstraction from the Gnangara System in 2006 is estimated at 346 GL, which represents 0.002% of the estimated maximum storage capacity.
(b) The maximum storage capacity of the Yaragadee aquifer in the Perth region is estimated at approximately 180 000 GL. However only 76000GL of this is fresh water (salinity less than 1000mg/L TDS) with 57 000GL of this comprising the Gnangara System. The total abstraction of water from this aquifer for 2006 is estimated at 51GL which represents 0.0009% of the estimated 57 000GL of fresh water in this aquifer within the Gnangara System.
Notice: This document is created or edited using unregistered or evaluation copy of rtLib valid for testing or development purposes only. To use it for productive or any other purposes please register it. You may purchase the license on
http://www.rtlib.com
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