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7 <br />Response to DRMS September 25, 2009 Letter Powertech (USA) Inc. <br />• 13. Item 11 above discusses the DRMS's current position that injectate be <br />contained within the A2 Sand or be managed such that migration into overlying <br />and underlying strata be no greater than would occur under natural conditions. <br />DRMS will consider modifying this position if Powertech can demonstrate that <br />water quality impacts to the other A Sands and the WE Sand can be minimized <br />even with the introduction of injectate into those strata. Such a determination <br />would be largely dependent on water quality in these other sands compared to <br />the water quality in the A2 Sand. <br />Response: <br />As described in the responses to Items 11 and 12 above, Powertech is proposing <br />to reinject the produced fluid from the Section 33 pumping test under vacuum <br />into the same zone from which it was derived, using the pumping well PW-1. <br />• <br />