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' II 110 2nd Avenue South,#D7, Pacheco,CA 94553 McCAMPBELL ANALYTICAL INC Tcle 510-798-1620 Fax 510-798-1622 Advanced GeoEnvironmental Client Project ID Chase Chevrolet- Date Sampled 05/11/95 I803 West March Lane,Ste A Madison Date Received 05/12/95 Stockton,CA 95207 Client Contact Bob Marty Date Extracted 05/12/95 11 Client P O Date Analyzed 05/13/95 ' Transmission&Motor Oil Range(> C18) Extractable Hydrocarbons as Transmission &Motor Oil " EPA methods modffled 8015 and 3550 or 3510 Caldorn RW CB SF Bay Re ion method GCF1D 3550 or GCF11) 3510 Lab ID Client ID Matrix TPH(to)+ TPH(mo)+ %Recovery Surrogate 52442 MW-1/5-11-95 W ND ND 102 ' 52443 MW-2/5-11-95 W ND ND 98 52444 MW-4/5-11-95 W ND ND 98 52445 MW-5/5-11-95 W ND ND 97 52446 MW-8/5-11-95 W ND ND 96 Reporting Limit unless other- W 250 ug/L 250 ug/L ' wise stated,ND means not de- tected above the reporting limit S 10 mg/kg I0 mg/kg *water samples are reported in ug/L,soil samples in mg/kg,and all TCLP and STLC errtracts in mg/L ' # cluttered chromatogram resulting in coeluted surrogate and sample peaks, or, surrogate peak is on elevated baseline,or,surrogate has been diminished by dilution of original extract ' + The following descriptions of the TPH chromatogram are cursory m nature and McCampbell Analytical is not responsible for their interpretation a) unmodified or weakly modified diesel is significant, b) diesel range compounds arc significant,no recognizable pattern,c) aged diesel?is si ificant),d)gasoline range compounds are significant, e) medium boiling point pwattern that does not match diesell (?), f) one to a few isolated peaks ' resent,g)oil range compounds are significant,h)lighter thanater immisciblle sheen is present,i)liquid sample that contains grea er than— 5 vol %sediment DHS Certification No 1644 41' Edward Hamilton,Lab Director