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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-798-1620 Fax:510-798-1622 <br /> Geological Audit Services Client Project ID:Mayers-Lodi Date Sampled:05/06/94 <br /> 1803 West March Lane, Ste.A Date Received:05/06194 <br /> Stockton,CA 95207 Client Contact:Bob Marty Date Extracted:05/07/94 <br /> Client P.O: Date Analyzed.05/07-05/08/94 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with BTFX* <br /> EPA methods 5030 modified 8015 and 8020 or 602;California RW CB SF Ba Regio method GCFID 5434 <br /> Ethylben- % Rec. <br /> Lab ID Client ID Matrix] <br /> atrix TPH(g)+ Benzene Toluene zene Xylenes Surrogate <br /> 35524 B-3 S ND ND ND ND ND 106 <br /> 35525 SP-1,2 S ND,b ND 0.008 0.006 0.027 I03 <br /> 35526 SP-3,4 S ND,b ND ND ND 0.022 106 <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 mg/kg 0.005 0.005 0.005 0.005 <br /> *water samples are reported in ug/L,soil samples in mg/kg,and all TCLP extracts in mg/L <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 interpretation:a)unmodified or weakly modified gasoline is si icant;b) heavier gasoline <br /> range compounds are significant(aged gasoline?).c)lighter gasoline range compounds(the most mobile fraction) <br /> are significant d) �a sohne range compounds are sigru7icam,no recognizable pattern e) TPH pattern that docs <br /> not appear to be derived from gasoline (?) f� one to a few isolated peaks present;gj strongly aged gasoline or <br /> diesel range compounds are significant;h) �igrtter than water immiscible phase is present. <br /> DH S Certification No. 1644 <br /> Edward Hamilton,Lab Director <br />