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' 110 2nd Avenue South,#D7,Pacheco,CA 94553 McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fait 510-798-1622 Advanced GeoEnvironmental Client Project ID Stockton Plating Date Sampled 10/11/95 ' 1803 West March Lane,Ste A Date Received 10/12/95 Stockton,CA 95207 Client Contact Bob Marty Date Extracted 10/12/95 Client P O Date Analyzed 10/12/95 Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with BTEX* ' EPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Bav Re on method GCFTD 5030 Lab ID I Client ID Matrix TPH(g)+ Benzene Toluene Ethyylnbeen Xylenes Surrogate 57385 VS-1 Air 10,000,c 180 900 70 290 106 57386 VS-2 Air 17,OOO,c 250 1500 220 990 ---# ' 57387 VS-3 Air 31,000,c 2000 2100 120 490 -- 57388 VS4 Air 25,OOO,c 300 2100 350 1700 ---# 1 i i i i Reporting Limit unless other- Air 50 ug/L 05 05 05 05 wise stated,ND means not de- tected above the reporting limit S 10 mg/kg 0 005 0 005 0 005 0 005 *water and vapor samples are reported in ug/L,soil samples in mg/kg,and all TCLP extracts in mg/L #cluttered chromatogram,sample peak coelutes with surrogate peak + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Anahtical is not responsible for their interpretation a) unmodified or weakly modified gasoline is signi'icant,b) heavier gasoline range compounds are sipdficant(aged gasoline?),c)htergasolute range compounds(the most mobile fraction) are significant d) soliine range compounds having�iroad chromato aphic peaks are significant, biologically altered gasoline', - TPH pattern that does not appear to be derived oin gasoline (9), fj one to a fc« isolated peaks present g)strongly aged gasoline or diesel range compounds are significant h)lighter than ,Nate r urmusc ible. sheen is present i) liquid sample that contains greater than_ 5 Not % sediment }) no recognizable pattern DHSCertificationNo 1644 �� Ed«ardHamilton Lab Director