Hon Giz Watson asks about the water usage and recharge rates of aquifers used by Mt Gibson Iron Ltd, and whether any groundwater-dependent ecosystems rely on them. Hon Kim Chance responds with data on allocation, recharge, and confirms no reliance by ecosystems.

AnsweredQoN 699Legislative Council
Asked
4 September 2007
Portfolio
Water Resources

QuestionView source ↗

MT GIBSON IRON LTD
Following my questions to the Minister for Resources on 28 August 2007 regarding the Mt Gibson Iron Ltd iron ore mine, I ask - (1) What is the current usage and recharge for the targeted aquifers? (2) Are any groundwater-dependent ecosystems reliant on these aquifers? Hon KIM CHANCE

AnswerView source ↗

I thank Hon Giz Watson for some notice of the question. (1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
(1) What is the current usage and recharge for the targeted aquifers? (2) Are any groundwater-dependent ecosystems reliant on these aquifers? Hon KIM CHANCE replied: I thank Hon Giz Watson for some notice of the question. (1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
(2) Are any groundwater-dependent ecosystems reliant on these aquifers? Hon KIM CHANCE replied: I thank Hon Giz Watson for some notice of the question. (1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
Hon KIM CHANCE replied: I thank Hon Giz Watson for some notice of the question. (1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
I thank Hon Giz Watson for some notice of the question. (1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
(1) Currently allocated and committed are 5.2 gigalitres, with an additional 32.8 gigalitres requested. Gross annual recharge to the Parmelia aquifer in the Tathra sub-area of the Arrowsmith groundwater area is estimated at 37.3 gigalitres. The source of that is the “Managing the Arrowsmith Groundwater Area: Interim Sub-Regional Allocation Strategy” in 2002. The allocation limit was set at 33.4 gigalitres a year. (2) No.
(2) No.

Explore WA Government Data

Search the full archive in the free dashboard, or query programmatically via API.

Explore more