A WA parliamentary question on notice addresses the specifics of a fracking operation at the Yulleroo 2 well, including water usage, chemical additives, and environmental referrals. The response details the fracking process, confirms no potable water was used, and explains why the EPA was not formally consulted.

AnsweredQoN 4334Legislative Council
Asked
28 June 2011
Portfolio
Mines and Petroleum

QuestionView source ↗

I refer to the answer to my question on notice No. 3903 regarding the Yulleroo 2 well in which fracture stimulation or ‘fracking’ was conducted at depths between 2850 and 3100 metres, and I ask -
(1) How many times was this well fracked?
(2) How many litres of water was used for each fracking activity carried out in this well?
(3) Was potable water used for any of the fracking activities?
(4) If yes to (3), how many litres of potable water were used?
(5) Were any chemicals part of the fracking mix?
(6) Did the Department of Mines and Petroleum refer the proposal for fracking to the Environmental Protection Authority (EPA)?
(7) If the answer to (6) is no, then why not?
(8) Did the Department seek and receive advice from the EPA regarding this activity?

AnswerView source ↗

Answered
9 August 2011
Responded by
Minister for Mines and Petroleum
Response time
42 days
(1) The well was fracced in 3 zones at 3,100m (Zone 1), 2,980m (Zone 2) and
2,850m (Zone 3).
(2) Total amount of fluid pumped to each zone was:
Zone 1 - 3 665bbl (582.69kL)
Zone 2 - 3 745bb1 (595.41kL)
Zone 3 - 1 560bb1 (248.02kL)
(3) No potable water was used to frac the well.
(4) Not applicable.
(5) Yes.
(6) No.
(7) The proposal did not trigger any of the requirements for formal referral under the  current Memorandum of Understanding between the Department of Mines and  Petroleum and the Environmental Protection Authority.
(8) No.
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