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7) Soil Samples will be analyzed for Total Petroleum <br /> Hydrocarbons, as gasoline (TPHG) ) and Benzene, Toluene, <br /> Ethylbenzene and Xylene (BTEX) . The analytical method used will be <br /> those listed in the "Tri-Regional Guidelines" which are directives <br /> of the Regional Water Quality Control Board and requested by the <br /> SJCEHD. <br /> 8) Soil cuttings will be monitored with an Organic vapor Detector <br /> for the presence of volatile hydrocarbons. Soil cuttings will be <br /> placed on top of and covered with visqueen awaiting analysis. <br /> Proper disposal of the soil will depend on the analysis. Disposal <br /> of any contaminated soil 1s the responsibility of the property <br /> owner. <br /> 9) All borings will be logged by inspection of the samples and <br /> classified using the Unified Soil Classification System by a <br /> California Certified Engineering Geologist. <br /> 10) A minimum of three days after the installation of the wells, <br /> the wells will be developed by pumping and purging. Temperature, <br /> conductivity and Ph will be measured and groundwater sample <br /> collected after the measurements are stabilized. Groundwater <br /> samples collected by clean dedicated bailer. The 3 groundwater <br /> samples will be placed in a cooled ice chest and transported to a <br /> state certified laboratory under COC documentation for analyses . <br /> 11) The groundwater samples collected will be analyzed for Total <br /> Petroleum Hydrocarbons, as gasoline (TPHG) and Benzene, Toluene, <br /> Ethylbenzene and Xylene (BTEX) . The analytical method used will be <br /> those listed in the "Tri-Regional Guidelines" which are directives <br /> of the Regional Water Quality Control Board and requested by the <br /> SJCEHD. <br /> 12) The elevation of the well heads will be surveyed using a City <br /> of Stockton benchmark if available in the site area. The depth to <br /> groundwater in each well will be measured to a hundredths of a foot <br /> using an electronic probe. The elevation of the groundwater in each <br /> well will be used to establish the direction and slope of the <br /> gradient. <br /> 13) A report, signed by the Certified Engineering Geologist, will <br /> include a summary of the field work, boring logs, COC <br /> documentation, certified analytical results, conclusions and <br /> recommendations. <br /> 14) The report will be submitted to the client and the SJCEHD. <br /> • 6 <br /> I <br />