Question regarding the potential water yield from removing the Gnangara pine plantation and replacing it with natural vegetation. The government confirms the increased water yield and states that removal is part of a long-term strategy.

AnsweredQoN 1316Legislative Council
Asked
18 April 2002
Portfolio
Government Enterprises

QuestionView source ↗

GNANGARA PINE PLANTATION, REGENERATION TO NATURAL VEGETATION
(1) If the Gnangara pine plantation were removed and the area allowed to regenerate to natural vegetation, would the Water Corporation harvest an additional 32 million kilolitres of water? (2) If yes, why is this not being considered by the Government? Hon GRAHAM GIFFARD

AnswerView source ↗

On behalf of the minister representing the Minister for Government Enterprises, I thank the member for some notice of this question. (1) If the Gnangara pine plantation were removed and replaced with lower water-using vegetation, an estimated 36 million kilolitres of additional water would be generated from improved recharge to the ground water system. The Water Corporation’s access to this water would depend on an allocation licence from the Water and Rivers Commission. (2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.
(2) If yes, why is this not being considered by the Government? Hon GRAHAM GIFFARD replied: On behalf of the minister representing the Minister for Government Enterprises, I thank the member for some notice of this question. (1) If the Gnangara pine plantation were removed and replaced with lower water-using vegetation, an estimated 36 million kilolitres of additional water would be generated from improved recharge to the ground water system. The Water Corporation’s access to this water would depend on an allocation licence from the Water and Rivers Commission. (2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.
Hon GRAHAM GIFFARD replied: On behalf of the minister representing the Minister for Government Enterprises, I thank the member for some notice of this question. (1) If the Gnangara pine plantation were removed and replaced with lower water-using vegetation, an estimated 36 million kilolitres of additional water would be generated from improved recharge to the ground water system. The Water Corporation’s access to this water would depend on an allocation licence from the Water and Rivers Commission. (2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.
On behalf of the minister representing the Minister for Government Enterprises, I thank the member for some notice of this question. (1) If the Gnangara pine plantation were removed and replaced with lower water-using vegetation, an estimated 36 million kilolitres of additional water would be generated from improved recharge to the ground water system. The Water Corporation’s access to this water would depend on an allocation licence from the Water and Rivers Commission. (2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.
(1) If the Gnangara pine plantation were removed and replaced with lower water-using vegetation, an estimated 36 million kilolitres of additional water would be generated from improved recharge to the ground water system. The Water Corporation’s access to this water would depend on an allocation licence from the Water and Rivers Commission. (2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.
(2) Removal of the Gnangara pines is part of the long term strategy for the future use of the Gnangara ground water mound as a water source for Perth.

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