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L110 2nd Avenue South, #137,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax: 510-798-1622 <br /> i <br /> Geological Audit Services Client Project ID:Rond Property Date Sampled: 11/17/93 <br /> 1803 West March Lane, Ste. A Date Received:11/19/93 <br /> LStockton,CA 95207 Client Contact:Bob Marty Date Extracted: 11/19/93 <br /> Client P.O: Date Analyzed: 11/19/93 <br /> LGasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030,modified 8015,and 8020or 602;California RWCB SF Bay Re 'on method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g) Benzene Toluene Ethylben- Xylenes %Rec. <br /> zene Surrogate <br /> 33247 MW 1-15' S ND ND ND ND ND 110 <br /> 33248 MW1-10' S ND ND ND ND ND 106 <br /> L <br /> L <br /> Lt.; <br /> Detection Limit unless other- W 50 ug/L 0.5 0.5 0.5 0.5 <br /> wise stated;ND means Not <br /> Detected S 1.0 mglkg 0.005 0.005 0.005 0.005 <br /> L *water samples are reported in uglL,soil samples in mg/kg and all TCLP extracts in mg/L <br /> r <br /> #cluttered chromatogram;sample peak co-elutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their Linterpretation:a))unmodified or weakly modified gasoline is sificant;b) heavier gasoline <br /> range compounds are significant(aged gasoline?);c)li ter gasoline range compounds{the most mobile fraction) <br /> are significant d)gasohne range compounds are si�icanfi no recognizable pattern- e) TPH pattern that does <br /> not appear derived from gasoline ?)' one o a few isolated eaks present;g� strongly aged gasoline or <br /> i L diesel range compounds are significant; ) �tghter than water immisct%le phase is present. <br /> DHS Certification No. 1644 �� Edward Hamilton,Lab Director <br />