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Mr, Roberi Sagaser <br /> Novembcr 27, 089 <br /> Page 2 <br /> if a ewrnplc collected from a tank exceeds a standard modifications will be made to the eater 'reatment <br /> system. After tl:c modifications have been completed the water will be passed back through the system <br /> and another sample will be analyzed for BTX and total oil and grease. After the .discharge standards <br /> have been mct, the contents of the tank will be discharged into the sanitary sewer, at a discharge rata <br /> not to exceed 50 gpm, <br /> We anticipate that the underground gasoline tank rcplacernent activitics will be completed within 2 weeks <br /> of startup of the dewatering system. We estimate that a maximum voiurne of 100,000 gallons will be <br /> discharged to the City Sanitary Sower Systcm. <br /> If you have any questions, please call me at (915) 63$-2055. <br /> Sincerely, <br /> DELTA ENVIRONMENTAL CONSULTANTS, INC. <br /> +n.►7 P,- <br /> amcs R. BrawneIl <br /> HydroS logist&/Project Manager <br /> JRB:klb <br /> Enclosure <br /> cc\cnc: Ms. Diane Lundquist, Shell Oil Company <br /> Mr, Darrell Robinson, Shcll Oil Company <br /> L <br />