❓ Question on Notice regarding BGC's granite mining operation at the Lakes, focusing on potential impacts to surface and groundwater resources, salinity, and monitoring bore locations and results. It seeks detailed information about the Minister's assessment of environmental impacts.
⏳ Awaiting AnswerQoN 668Legislative Council
QuestionView source ↗
With regard to the previous questions without notice No. 904 of April 9 2002, April 17 2002, No. 968 of April 18 2002 and No. 1005 of May 8 2002 in relation to the major open cut mining operation for granite extraction operated by BGC (Australia) Ltd at the Lakes, about 50 km east of Perth -
(1) Will the Minister provide a detailed description of the future surface water resource that the Minister referred to in the reply to question without notice No. 1005, including whether it is intended that flowing surface waters are to be dammed, or is the resource in fact from shallow groundwater and to be extracted from the groundwater system by pumping?
(2) Why does the Minister believe that the fractures in the surface and immediate sub-surface levels that extend to the depths of the mine, will not feed groundwater into the Wooroloo Brook Drainage system when submerged beneath the water table following the closure of the mine?
(3) Given that the effects of evaporation will act as a saline sinkhole feeding saline water through shallow sub-surface fracture systems and weathered overburden into the Wooroloo Brook Drainage System, how does the Minister defend increasing the salinity due to the impacts of mining on the tributary system?
(4) In regard to the 21 bores that the Minister refers to in the reply to the question without notice No. 1005 where are these bores situated, and are they located with Lots 14 and 7 where the groundwater catchment area is that impacts downstream of the mine site?
(5) In relation to (4) have these bores been tested for groundwater quality?
(6) If so, when?
(7) What were the results?
Answered on
(1) Will the Minister provide a detailed description of the future surface water resource that the Minister referred to in the reply to question without notice No. 1005, including whether it is intended that flowing surface waters are to be dammed, or is the resource in fact from shallow groundwater and to be extracted from the groundwater system by pumping?
(2) Why does the Minister believe that the fractures in the surface and immediate sub-surface levels that extend to the depths of the mine, will not feed groundwater into the Wooroloo Brook Drainage system when submerged beneath the water table following the closure of the mine?
(3) Given that the effects of evaporation will act as a saline sinkhole feeding saline water through shallow sub-surface fracture systems and weathered overburden into the Wooroloo Brook Drainage System, how does the Minister defend increasing the salinity due to the impacts of mining on the tributary system?
(4) In regard to the 21 bores that the Minister refers to in the reply to the question without notice No. 1005 where are these bores situated, and are they located with Lots 14 and 7 where the groundwater catchment area is that impacts downstream of the mine site?
(5) In relation to (4) have these bores been tested for groundwater quality?
(6) If so, when?
(7) What were the results?
Answered on
AnswerView source ↗
⏳
This question is awaiting a response from the Minister.
Explore WA Government Data
Search the full archive in the free dashboard, or query programmatically via API.
Explore more
Government Gazette
Appointments, regulatory notices, planning changes.
Hansard
Debates, questions, speeches and sentiment.
Tabled Papers
Reports and documents tabled in Parliament.
Committees
Committee profiles and recent reports.
Regulations
Subsidiary legislation with filters and summaries.
Bills
Proposed laws and parliamentary progress.
Acts
Current WA legislation and summaries.
Explanatory Memoranda
Bills with EMs (text/PDF) available.
Members
MP profiles, party breakdown and rankings.
Pollie Rankings
Data-driven rankings across 19 categories.
Amendment Chains
Track how schemes and regulations evolve over time.