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WESTERN ` r � h 186 EAST REAMER STREET <br /> � <br /> 10: WOODLAND CA 95776-6003(530) 668-5300, <br /> CALIF. CONTRACTOR 111385712. ' FAX(530)662-0273 <br /> REGISTERED GE LO jt ,s %vcgc@tnollicr.com <br /> mothcr.com <br /> ,� . <br /> i <br /> Mr. Michael J. Infurna Jr. January 6, 1999 <br /> Senior REHS <br /> LOP/Site Mitigation Unit IV <br /> San Joaquin County Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 ' <br /> RE: Sancliez Pro ert 1876 Country Club Drive Stockton CA "' k 'k <br /> -- __P_Yom_ - - r <br /> Dear Mr. InCum a: rTxl.r <br /> Following our recent telephone conversation, I wrote to Mr. Jim Munch of the UST <br /> min <br /> Cleanup Fund to ask about waiving the requirement of a second remedial option for <br /> addressing the soil contamination at the Sanchez Property. Mr. Munch responded by <br /> telephone last week. He assured me that the UST Cleanup Fund"is not eager to fund <br /> 'vapor extraction pilot tests that may cost-more than direct removal of the contaminated <br /> soil, particularly if they involve.the installation of vapor extraction wells in order to <br /> conduct the pilot test. He stated that his office would be satisfied if we included in our <br /> workplan a short discussion that weighed the projected costs for vapor extraction against <br /> the costs of direct removal of contaminated soil, with consideration for the effectiveness <br /> or ineffectiveness of that remedial method based on field observations of the soil type. <br /> Mr. Munch will have the opportunity to review the workplan, following approval by your <br /> office, when we submit it along with cost estimates for pre-approval by the UST Cleanup <br /> Fund- <br /> WEGE therefore proposes to construct a workplan that will include a rationale and <br /> 'specifications for limited'overexcavation'of-ffic-tank pit area,and the installation of -- <br /> additional groundwater monitoring wells that can be used to measure TPH-G, BTEX, and <br /> MTBE concentrations at depths below the slotted iritervals of the existing monitor wells. <br /> Please provide written approval and /or comment on this proposal so that we may <br /> proceed. <br /> Thank you for your help, <br /> G <br /> David T irelfall <br /> Western Geo-Engineers ' <br /> Cc: Mr. and Mfrs. Manuel Sanchez <br />