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i <br /> ti �I <br /> 14 <br /> Laurie Cotulla <br /> May 13, 1987 <br /> Page 4 .I <br /> it <br /> 3. Undisturbed soil samples will be collected from all borings <br /> at a at of five foot intervals . The soil sample <br /> colle ,Ition and preservation shall be conducted in accordance <br /> with the attached GTI Standard Operating Procedures (SOP) 14 <br /> and 15. (see Attachment 1 ) . <br /> 4 . Select! soil samples will be analyzed for Total Hydrocarbons <br /> (THC ) and Benzene , Toluene and Xylene (BTX) as per EPA <br /> Methods 5030/8015 and 5030/8020. <br /> 5. Subselquent to well installation and development , water <br /> samples will be collected from the two new wells and three <br /> existing wells at the site. The groundwater sampling will <br /> be conducted in accordance with GTI 's SOPS 9, 10 and 11 (see <br /> Attachment 1 ) . <br /> ii <br /> 6. Water, samples will be analyzed for THC and BTX by EPA <br /> Method 602 . <br /> 7 . A survey of well records will be conducted to determine the <br /> location, construction and present use of wells within a <br /> one-m'ile radius of the site. In addition, a field survey <br /> will 1Abe conducted to locate groundwater wells within a <br /> 1/4-mile radius of the property. Sampling of nearby wells, <br /> if recessary, will be coordinated with a representative of <br /> k the County Health Department . <br /> 8 . Preparation of a report summarizing the findings of addi- <br /> tional investigations at the site. <br /> As required, an application permit and filing fee for the <br /> borings and installation of the monitoring wells are attached . <br /> Groundwater Technology would like to begin the drilling as soon <br /> as possible. <br /> j <br /> I� <br /> I� <br /> :I <br /> II <br />