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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 /> httn//www Mccampbell in E-mail matn@mccampbell coin <br />' Advanced GeoEnvironmental Client Project ID K&S Gas& Grocery Date Sampled 06/20/01 <br /> Date Received 06/21/01 <br /> 837 Shaw Road <br />' Stockton,CA 95215 Client Contact Calvin Lee Date Extracted 06/21-06/25/01 <br /> Client P O Date Analyzed 06121-06/25/01 <br /> 1 Gasoline Range(C6-Cl2)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* & BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602,California RW CB SF Bay Region)method GCFID 5030 <br /> Ethyl Xylenes <br /> %Recovery <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene benzene Surro to <br /> 70397 MW1/06200 W 54,000,a 240 1300 5900 1200 6100 97 <br /> 70398 MW2/06200 W 48,000,a NIK200 8500 1300 2400 5000 101 <br /> 70399 MW3/06200 W 130,000,a ND<350 20,000 25,000 4700 24,000 114 <br /> 1 <br /> 1 <br /> ' Reporting Limit unless W 50 119/1. 5 0 05 0 5 0 5 05 <br /> otherwise stated,ND <br /> means not detected above S 10 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> ' the reporting limit <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 /> m ugtL <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 err <br /> interpretation a) unmodified or weakly modified gasoline is significant b) heavier gasoline range compo compounds o ds has are i uu oad <br /> ' gasohne7), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gas g p <br /> chromatographic peaks are significant,biologically altered gasoline?,e)TPH pattern that does not appear to be derived from gaso },0 <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water i $cible <br /> sheen is present,i liquid sample that contains greater than—5 vol %sediment, no ignizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />