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1 - <br />' McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco, CA 94553 <br /> Tele 510-798-1610 Far 510-798-1622 <br /> Geological Audit Services Chent Protect ID Conway Property Date Sampled 10/21/93 <br /> 1803 West March Lane, Ste A Date Received 10/21/93 <br />' Stockton,CA 95207 Chent Contact Bob Marty Date Eadracted 10/22/93 <br />' Chent P 0 Date Analyzed 10/22-10123/93 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*, with BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602 California RW CB SF Ba Re on method GC HD 5030 <br />' Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes %Rec <br /> zene Surrogate <br /> 32737 S-4 S ND ND ND ND ND 98 <br /> I32738 S-5 S ND ND ND ND ND 101 <br /> 32739 S-6 S ND ND ND ND ND 102 <br /> f <br /> f <br /> f <br /> Detection Lunit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means Not <br /> Detected S 10 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 /> f + 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 ificant,b) heaviergasoline <br /> range compounds are significant(aged gasoline?),c)lighter gasoline range compouns(the most mobile fraction) <br /> are significant d)gasoline range compounds are significant, no recognizable pattern e) TPH pattern that does <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, ) �igtiter than water immisciitle phase is present <br /> DH S Certtfication No 1644 Edward Hamilton,Lab Director <br />