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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1624 Fax 510-798-1622 <br /> AdNunced GeoEnvironmental,Inc Client Project ID West Clay Properties Date Sampled 11/08/96 <br /> 1803 West March Lane, Suite A Date Received 11/08/96 <br /> IStockton, CA 95207 Client Contact Kevin McKibben Date Extracted 11111-11/13/96 <br /> Client P O Date Analyzed 11/11-11/13/96 <br /> Gasoline Range(C6-C12) Volatile H?drocarbons as Gasohne*,with Methyl Cert-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 Cali rnsa RW CB SF Bav Re ton method GCFITJ 5030 <br /> Lab ID Client ID Matrix TPH(g)} MTBE Benzene Toluene Ethylben Xylenes % Rec <br />' zene Surrogate <br /> 71025 SP 1-1 S ND --- ND ND ND ND 106 <br />' 71026 SP 1-2 S ND --- ND ND ND ND 102 <br /> 71027 SP 1-3 S ND --- ND ND ND ND 106 <br /> 71028 SP 1-4 S ND --- ND ND ND ND 106 <br /> 71029 SP 1-5 S ND --- ND ND ND ND 107 <br /> 71030 SP 1-6 S ND --- ND ND ND ND 103 <br /> 71031 SP2-1 S ND --- ND ND ND ND 107 <br /> 71032 SP2-2 S ND --- ND ND ND ND 107 <br /> 71033 SP2-3 S ND --- ND ND ND ND 105 <br /> 71034 SP2-4 S ND --- ND ND ND ND 107 <br /> 71035 SP2-5 S ND --- ND ND ND ND 108 <br /> 71036 SP2-6 S ND --- ND ND ND ND 104 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> othervose stated, ND <br /> means not detected <br /> aboNe the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br />' *eater and vapor samples are reported in ug/L, soil and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> "cluttered chromatogram,sample peak coelutes«7th 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 sigi�iif-icant,b) heavier asoline <br /> range compounds are sirificant(aged gasoline?) c)1ightergasohne range compounds(the most mobile igfaction) <br /> are sy1ficant, d) asoline range compounds having broad chromatographic peaks are significant, biologically <br /> altered gasoline?, a TPH pattern thaf does not appear to be derned from gasoline (?),f) one to a few isolated <br /> peakspresent, <br /> g)stronglyaged asoline ordieselrangecompounds are significant,h)lighter than water immiscible <br /> sheen is present, i) liquidd samp a that contains greater than 5%ol % sediment,l) no recognizable pattern <br /> DHS Certification No 1644 //Z Edward Hamilton,Lab Director <br />