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n <br /> - .. . hIX—oil <br /> - <br /> 1. <br />$,,,, _ - <br /> . <br /> g <br /> en$Cro environmental Ser&1iQr@$, inc. <br /> Public Works Department I <br /> Project No. 2423D <br /> Page T wo <br /> Laborato <br /> i <br /> The soil samPIL was analyzed for total petroleum hydrocarbons as diesel, at Trace Analysis Laborato ;'. <br /> inc., in Hayward, California., All soil samples were accompanied, with. cha n-of-custody <br /> documentation ' Laboratory test:results indicate that,total'petroleum hydrocarbons as diesel.were: <br /> present ata concentration of 136,000 parta ler-bllllon The laboratory results are attached along" <br /> with copes of the chain-of-custody and the drilling permit. <br /> f <br /> Conclusion s <br /> Based on the field and chemical data, it is our opinion that there appears to be evidence of tank leakage. <br /> The San Joaquin Local Health Department (SJLHD)should be forwarded a copy of this letter report In <br /> a timely fashion. It should be noted that the SJLHD may require additional work to be preformed at § <br /> this site. <br /> If you have any questions regarding this report, please call us. <br /> t <br /> Sincerely, K <br /> Ensco Environmental Services, Inc. ' <br /> gAjv� <br /> (chard A.Darlow Christopher M. Palmer, C.E.G. 1262 <br /> Proje t Geologist _ Senior Program Manager x "1 <br /> Kbnt E. Parrish ti <br /> Project Geologist <br /> l RAG/KEP/CMP/sw <br /> Enclosure <br /> r � <br />