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Lisa Medina [EH ] <br /> From: Kasey Jones < kaseyjones@stratusinc.net> <br /> Sent: Monday, August 26, 2013 10:47 AM <br /> To: Nuel Henderson [EH] <br /> Cc: Lisa Medina [EHj <br /> Subject: RE: DPE Pilot Test Evaluation & Summary - Barnes Trucking - 1817 Fresno Avenue, <br /> Stockton <br /> Attachments: Barnes-O&M DPE test - Table 4.pdf <br /> Importance: High <br /> Good morning Nuel, <br /> i <br /> I have made the revisions to Table 4, as we discussed last week. As you can see, the "Cumulative <br /> GRO Removed" column has been revised . <br /> As you know, the DPE system started and stopped nearly every day due to various reasons. It is our <br /> expectation that once the DPE system is up and running continuously and consistently and the <br /> groundwater drawdown stabilizes, the extraction rates will increase substantially. Additionally, the <br /> cost associated with proceeding with the 30-day DPE event will differ greatly from the costs required <br /> to start the 5-day test. The sewer discharge permit approved for the 5-day test will just take some <br /> simple revisions to get it approved for the 30 day test. Additionally, the 0&M costs will be <br /> substantially lower ( per week) for the30 day event than they were for the 5-day test. <br /> We believe that by conducting the 30-day DPE event, we will be able to reduce petroleum <br /> hydrocarbon concentrations to levels that will permit us to evaluate the case for closure under the <br /> low threat closure policy. Please do not hesitate to contact mw if you have any questions or require <br /> dHy dd itiona I -information. <br /> Sincerely, <br /> Kasey L. ]ones <br /> Senior Project Manager <br /> STRATUS ENVIRONMENTAL, INC. <br /> PH (415 ) 516-0373 <br /> www,stratusinc. net <br /> APlease consider the environment before printing this entail <br /> From : Kasey ]ones [ma iIto : kaseyjones@stratusinc.net] <br /> Sent: Wednesday, August 21, 2013 3 : 09 PM <br /> To: Lisa Medina [EH] (lmedina(@sjcehd .com) <br /> Subject: DPE Pilot Test Evaluation & Summary - Barnes Trucking - 1817 Fresno Avenue, Stockton <br /> Dear Ms. Medina : <br /> t <br />