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r r ; 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> Advanced GeoEnvironmental,Inc. Client Project ID:Chirelas Property Date Sampled:03/25/97 <br /> 1803 West March Lane,Suite A Date Received: 03/26/97 <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted:03/29/97 <br /> Client P.O: Date Analyzed:03/29/97 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,«ith Methyl tert--Butyl Ether*&BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602•California RW CB SF Bay Region)method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes % Rec. <br /> zene Surrogate <br /> 74775 North Well W ND ND ND ND ISTD ND 103 <br /> 74776 South Well W ND ND ND ND ND ND 103 <br /> 74777 West Well W ND ND ND ND ND ND 103 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected <br /> above the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram;sample peak coelutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation:a unmodified or weakly modified gasoline is significant;b)heavier gasoline <br /> range compounds are siggnnificant(aged gasoline?);c)lighter gasoline range compounds(the most mobile action) <br /> are significant; d) asoline range compounds having broad chromatographic peaks are significant;biologically <br /> altered gasoline?; TPH pattern that does not appear to be derived from gasoline (?);f) one to a few isolated <br /> peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than water immiscible <br /> sheen is present;i) liquid sample that contains greater than— 5 vol.% sediment;j) no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />