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RONMENTAL REALTU <br /> . ENv1 � <br /> SAN JOAQL7IN COUNTY Unit Supervisors � <br /> i <br /> �O.• �� ..pG Carl Borgman,R.E.H.S. <br /> r•:' b'? :Z Donna K.Heran,R.E.H.S. 304 East Weber Avenue, Third Floor Mike Huggins,R.E.H•S•,R.D.I. <br /> '< Director <br /> 1I Al Olsen,R.E:H•s• Stockton, California 95202-270$ Douglas W.Wilson,R.E.H.S. <br /> Mar aret Lagorio,R.E•H.S. <br /> v.• Program Manager Telephone: (209) 468-3420 g <br /> • �... Robert McClellon,R.E.H.S, <br /> 4CiFoR` Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 <br /> Mark Barcelios,R.E.H.S. <br /> Program Manager <br /> DAVID ATWATER <br /> FUEL STOPS LAND & DEVELOPMENT LLC <br /> P O BOX 1207 <br /> STOCKTON CA 95201 <br /> RE: Lathrop Gas & Food Mart Site Code: 1507 <br /> 14800 South Highway 99 RO: 0199 <br /> Manteca, CA 95336 <br /> WORKPLAN: `Revised Preliminary Site Assessment Work Plan" <br /> DATED: November 18 , 2003 <br /> PREPARED BY: Advanced GeoEnvironmental, Inc . , <br /> STATUS: APPROVED with conditions noted below: <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN [Health & Safet <br /> Code (H&S) Section 25296 .10 (c) (3) ] : <br /> • Advance three soil borings using direct push technology to a <br /> depth of approximately 20 feet below surface grade (bsg) or <br /> until groundwater is encountered; two borings will be <br /> advanced adjacent to dispenser D1, and one boring will be <br /> advanced adjacent to dispenser D4 ; <br /> • Collect soil samples at five-foot intervals beginning at <br /> five feet bsg; <br /> • Laboratory analytical data must include : <br /> 1. Method blank results for every analyte reported <br /> 2. Surrogate recoveries for every sample analyzed by US <br /> Environmental Protection Agency (EPA) SW-846 methods <br /> 8015B, 8021, and 8260B <br /> 3. Recoveries for laboratory `control samples (LCS) , and <br /> matrix spike samples (MS) if the MS sample is site <br /> specific <br /> 4 . Quality control limits fbr surrogates, LCS, MS, and <br /> relative percent differences <br /> ii <br />