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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> L.McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fair 510-798-1622 <br /> Geological Audit Services Client Project ID Conway Property Date Sampled 07/06/93 <br /> 1803 West March Lane, Ste A Date Received 07/06/93 <br />' Stockton,CA 95207 Client Contact Bob Marty Date Extracted 07/12/93 <br /> Client P O Date Analyzed 07/12/93 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*, with BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RW Cl3SF Ba Re on method GCF1D 5030 <br />' Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes %Rec <br /> zene Surrogate <br /> 31182 MW-17-6-93 W ND ND ND ND ND 111 <br />' 31183 MW-2 7-6-93 W ND ND ND ND ND 107 <br /> 31184 MW-3 7-6-93 W ND ND ND ND ND 108 <br /> 1 <br />' Detection Lmut 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 /> + 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 gasolineis sl�nificant,b) heavier gasohne <br /> range compounds are significant(aged gasoline?),c)1lghter gasoline range compounds(the most mobile traction) <br /> are significant d)gasohne range compounds are siicanf,no recognizable pattern e) TPH pattern that does <br /> not appear to die derived from gasohne ((?) one o a few isolated peaks present,gj strongly aged gasoline or <br /> diesel range compounds are significant,h) fighter than water mimiscible phase is present <br /> DHS Certification No 1644 �'�` Edward Hamilton,Lab Director <br />