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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http.//www mccampbell.com E-mail main@mccampbell com <br /> • <br /> Advanced GeoEnvironmental Client Project ID Chase Chevrolet-Van Date Sampled 04/12-04/15/99 <br /> 4005 North Wilson Way Buren Date Received 04/17/99 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 04/19/99 <br /> Client P O Date Analyzed 04/19-04/21/99 <br /> IGasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matnx TPH(g)� MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zene Surrogate <br /> 09298 SW99/�4-12 W ND,i ND ND ND ND ND 104 <br /> 09299 SW20/4- W I I00,b,1,t ND<10 055 ND 097 93 101 <br /> 12-99 <br /> 09300 SW23/4- W 82,a,h,i ND 074 ND ND ND 101 <br /> 12-99 <br /> 09301 SWI-30 S ND ND ND ND ND ND 96 <br /> 09302 SW5-30 S ND ND ND ND ND ND 94 <br /> 09303 SW5-35 S ND ND ND ND ND ND 96 <br /> 09304 SW6-30 S ND ND ND ND ND ND 93 <br /> 09305 SW9-25 S ND ND ND ND ND ND 96 <br /> 09306 SW 10-20 S 3 3,a ND 0 014 0 015 012 0 087 103 <br /> 09307 SWIO-25 S 560,b,1 ND<1 ND<O 05 20 45 13 109 <br /> 09308 SW 13-20 S ND ND ND ND ND ND 94 <br /> 09309 SW 13-25 S ND ND ND ND ND 0 1 I 96 <br /> 09310 SW13-30 S 3 ],a ND 0 084 081 0 11 061 94 <br /> 09311 S W 14-20 S 71,a ND<O 1 053 020 24 84 95 <br />' Reporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit $ g S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> I <br /> *water and vapor samples are reported in ug/L.,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> mtetpmtation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sign,ficant'aged <br /> gasolmel), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(?),f) <br /> • one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than,5 vol %sediment,})no recognizable pattern <br /> DHS Cernfication No 1644 JLi2—Edward Hamilton, Lab Director <br /> I <br />