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1386 EAST BEAMER STREET <br /> EGA ESTERN WOODLAND, CA 95776-6003 <br /> GED ENGINEERS FAX(916)662-0273 <br /> y;g2gy%7658-5300 <br /> .4CALIF CONTRACTOR#5I3857 A COkPOR1'iONREGISTERED GEOLOGIST'S <br /> MAR - 9 1993 <br /> ENVIRONMENTAL HEDLJ3f-I <br /> Ms. Linda Turkatte MiRVB/SSfjVIT0 <br /> San Joaquin County Health (addendum for 5/20/91) <br /> P.O. Box 2009, <br /> Stockton, CAA 95201 <br /> (209) 468-3442 <br /> (Fax) 464-0138 <br /> RE: Addendum to Work Plan, dated May 20, 1993 , for further <br /> assessment of DESERT PETROLEUM SERVICE STATION #787, 950 lith <br /> j Street, Tracy, San Joaquin County, California, Section 29;T2S;R5E <br /> MDB&M. <br /> Dear Ms. Turkatte: <br /> f As to your letter dated February 25, 1993, this addendum is being <br /> prepared for the drilling and sampling . of two borings and <br /> converting one of these borings into a ground water monitoring <br /> well MW4, see Appendix A. This addendum work plan was requested <br /> by Mr. John Rutherford of Desert Petroleum on March 8, 1993. <br /> r . • <br /> ( SITE LOCATION <br /> f � <br /> $ Desert Petroleum STATION # 787 is located in Section 29; T2S; <br /> R5E; MDB&M on the corner of 950 West lith Street and 9th Street, <br /> , i . <br /> in Tracy, California. <br /> I PURPOSE AND SCOPE <br /> I , <br /> On February 11, 1993, a meeting a', the PHS/EHD, 445 N. San <br /> Joaquin Street, Stockton, California occurred to discuss what <br /> additional sampling was needed to consider the above site for <br /> recommendation for site closure. Attendants of the meeting were <br /> Linda Turkatte and Diane Hinson of San Joaquin County Health, <br /> John Rutherford of Desert Petroleum, and myself, George Converse <br /> of Western Geo-Engineers. As stated in the February 25, 1993 <br /> letter, Appendix A, two sample borings were needed to test sr". <br /> above top of ground water.northeast and west of the undergr: ::,d <br /> ( storage tanks. Also the northeast boring is to be completed as a <br /> monitoring well (MW4) and the ground water tested for total <br /> petroleum hydrocarbons gasoline range (TPHg) , BTEX and lead. The <br /> i. pre-existing ground water monitoring wells will also be tested <br /> for TPHg, BTEX and lead. All four wells will be surveyed by a <br /> . licensed surveyor (Nolte & Assoc.) and will be used for ground <br /> water gradient information. <br /> y <br /> z <br /> pager <br />