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M. Scott Mansholt 0 - 2 - 0 8 March 2005 <br /> ChevronTexaco <br /> Mountain House Site#1 <br /> Results of sampling and monitoring of the treatment system influent (pre-treatment) water from all of the <br /> wells have been non detect for petroleum constituents for several months. <br /> Based on our review, we have the following comments: <br /> • Discharge of groundwater extracted by the remaining dewatering wells removed from the <br /> treatment system, shall be continue to be applied to Field G or other nearby land; and, <br /> • Written documentation shall be provided to Regional Board staff within 30 days describing the <br /> abandonment of the dewatering wells. <br /> We concur with the proposal to remove the dewatering wells from the treatment system and direct the <br /> extracted groundwater to Field G. By 1 April 2005 please provide documentation describing <br /> abandonment of the dewatering wells outlined above. <br /> If you have any questions or comments, please contact Dean Hubbard at (559) 445 - 5179. <br /> SHELTON R. GRA . C. DEAN HUBBARD <br /> Senior Engineering Geologist Engineering Geologist <br /> RG No. 6357 <br /> cc: Michael Infurna, San Joaquin County EHD, Stockton <br /> Luis Mercado, SAIC, Sacramento <br />