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C�� InGeological Audit Ser�ices IIc. <br /> � 1803 W. March Lane, Suite A•Stockton, CA 95207• (209)9516-0264• FAX (209) 956-0700 <br /> 5 June 1992 <br /> (GeoAudit CV42F5-1.26) <br /> i <br /> Ms. Mary Meays, REHS <br /> San Joaquin County Public Health Services � � <br /> Environmental Health Division <br /> P. O. Box 2009 <br /> Stockton, CA 95201 JUN 0 9 1992 <br /> ENVIRONMENTAL HEALTH <br /> Subject: Soil Remediation Plan - Babka >OlistAbuting iTlSERViCE5 <br /> 1245 West Weber Avenue <br /> Stockton, California <br /> Dear Ms. Meays: <br /> I� <br /> At the request of our client, the Bank of Stockton, representatives <br /> of Geological Audit Services, Inc. (GeoAudit) collected soil <br /> samples to characterized the excavated soill at the referenced site. <br /> On 1 May 1992 , 14 soil samples were collected from approximately <br /> 725 cubic yards of excavated soil at the referenced site. The soil <br /> is divided into three soil piles (see Figure 2 - Site Plan) . Soil <br /> pile A, soil pile B and soil pile C contain app,proximately 225, 250 <br /> and 250 cubic yards of soil, respectively. One 1Isample was collected <br /> for every 50 cubic yards of soil and the samples from each separate <br /> pile were composited. <br /> I <br /> The samples were collected using a metric !soil, sampler loaded with <br /> two pre-cleaned 2 . 5 by 3 inch brass tubes. The ends of the lead <br /> tube were covered with aluminum sheets, capped, sealed with tape <br /> and stored on ice. The samples were then transported to a state <br /> certified laboratory. I I <br /> Samples from Soil Pile A were analyzed for total petroleum <br /> hydrocarbons (TPH as gasoline and TPH as diesel) and purgable <br /> aromatics (BTE&X) in accordance with EPA methods 8015 and 8020 <br /> using the toxicity characteristic leaching'-. pro�edure (TCLP) . An RCI <br /> test (reactivity, corrosivity and ignitibility) was also performed <br /> on the samples from Soil Pile A. <br /> I <br /> Samples from Soil Pile B were analyzed ]or total petroleum <br /> hydrocarbon as diesel (TPH as diesel) and halogenated volatile <br /> organics in accordance with EPA methods 8015 and 8010, <br /> respectively. A 96-hour fish bioassay test was also completed on <br /> samples from Soil Pile B. <br /> Samples from Soil Pile C were analyzed for TPH as diesel. The <br /> analytical results and chain of custody for all three soil piles <br /> are attached. <br /> E=nvironmental Services• Hydrogeology.Geotechnical Services <br /> l <br /> II <br />