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handling,treatment,and disposal (CRA,September 30,2008). CRA prepared a remedial <br /> action plan(RAP) proposing DPE system installation(CRA, December 15,2008). <br /> 2009 Air Sparge (AS)/SVE Pilot Testing. In CRA's February 13, 2009 report, we <br /> recommended evaluating AS/SVE as a remedial option. During April 2009, CRA <br /> conducted an AS/SVE pilot test. CRA concluded that AS/SVE would be technically <br /> feasible and preferable to DPE (CRA, October 30, 2009). CRA prepared a revised RAP <br /> proposing AS/SVE system installation(CRA,January 19,2010). <br /> 241729(33) A-4 CONESTOGA-ROVERS&ASSOCIATES <br />