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18 August 1997 <br /> AGE-NC Project No. 97-0361 <br /> Page 2of3 <br /> surface grade(bsg). The soil probe boring will be advanced using a Geoprobe 5400 soil probing unit <br /> equipped with 1.25-inch diameter probe rods and an attached 2.15-inch diameter soil sampler. The <br /> soil sampler will be loaded with clean 1.l 25-inch by 6-inch brass sleeves. The proposed soil probe <br /> boring location is illustrated on Figure 2. Soil samples will be collected from the probe boring at <br /> five-foot intervals. <br /> One grab ground water sample will be collected from the probe boring. The ground water sample <br /> will be collected using a Geoprobe water sampling assembly. Samples will be placed into 40-ml <br /> VOA vials. <br /> If field screening of soil and ground water samples indicate that petroleum hydrocarbons are present, <br /> additional soil probe boring may be advanced to adequately define the lateral extent of <br /> contamination. <br /> EOUIPMENT DECONTAMINATION <br /> All probing rods, sampling tools and sample liners used for sample collection will be thoroughly <br /> rinsed with clean water after washing with a solution of Alconox. <br /> LA BORATOR Y ANAL YSIS <br /> Selected soil and ground water samples will be analyzed for total petroleum hydrocarbons quantified <br /> as gasoline (TPH-g) and volatile aromatics (benzene, toluene,-ethylbenzene arid'xylenes: BTE&X) <br /> with methyl tertiary butyl ether (MTBE) in accordance with EPA methods 801511-1 and 80201602. <br /> If required, samples may also be analyzed for volatile organics to identify oxygenates in accordance <br /> with EPA method 8260. <br /> REPORT PREPARATION <br /> Upon completion of probing, sampling and laboratory analysis, a brief report of findings will be <br /> prepared summarizing results of the work performed. The report will include recommendations for <br /> additional investigation or remediation, if necessary. The report will be in a format acceptable to the <br /> PHS-EIID and Central Valley Regional Water Quality Control Board (CVRWQCB) and will be <br /> reviewed and signed by a California Registered Geologist. <br /> Also enclosed is a site specific health and safety plan, drilling permit and permit fee. Upon approval <br /> Advanced GeoUvironmenlal,Inc. <br />