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it <br /> 20 December 1998 <br /> AGE-NC Project No. 97-0312 <br /> ' Page 4 of 7 <br /> 3.7. LABORATORY ANALYSIS <br /> v <br /> Selected soil and ground water samples will be transported to a California Department of Health <br /> ' Services (DHS)-certified laboratory and analyzed for total petroleum hydrocarbons quantified as <br /> La gasoline (TPH-g) and diesel (TPH-d), volatile aromatics (benzene, toluene, ethylbenzene and <br /> xylenes; BTEX) and fuel oxygenates including MTBE, tertiary-butyl alcohol (TBA), di-isopropyl <br /> ether(DIPS), ethyl tertiary-butyl ether (ETBE) and tertiary-amyl methyl ether(TAME). <br /> LW <br /> r.. <br /> 3.8. REPORT PREPARATION <br /> Upon completion of field work and receipt of the final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation,conclusions and applicable recommendations.The report <br /> will include a description of the work performed and the results of the sampling and analysis. <br /> Laboratory reports,testing methods, laboratory quality assurance/quality control (QA/QC)reports, <br /> and sample chain of custody documentation will be presented in the report. The report will be in a <br /> format acceptable to the PHS-EHD and the CVRWQCB, and will be reviewed and signed by a <br /> California Registered Geologist. <br /> 4.0. FIELD PROCEDURES <br /> 160 <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist. Procedures for the soil sampling, in-situ ground water sampling, monitoring <br /> welI installation,well development,ground water sampling,equipment decontamination and sample <br /> analyses are outlined below. <br /> LW <br /> 4.1. SOIL BORING ADVANCEMENT <br /> I`. <br /> Soil borings will be advanced using a truck-mounted drill rig and 8-inch diameter hollow stem <br /> augers. The initial four borings will be advanced to a vertical depth of 100 feet bsg. Subsequent <br /> �.. borings will be advanced to the vertical extent of impacted soil, based upon field screening and data <br /> from previous borings installed at the site. <br /> L. <br /> 4.2. SOIL SAMPLING PROCEDURES <br /> L. Soil samples will be collected using California a split-spoon sampler loaded with three 2-inch by 6- <br /> inch brass sleeves. The sampler will be driven by dropping a 140-pound hammer from a height of <br /> Advanced GeoEnvironmensal,Inc. <br />