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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 ni c bell com E-mail main@mccampbell corn <br /> • Date Sampled 06/18/2001 <br />' Advanced GeoEnvtronmental Client Project 1D Cherokee Truck Stop <br /> Date Received 06/21/2001 <br /> 837 Shaw Road <br />' Stockton,CA 95215 Chent Contact Paul Dotson Date Extracted 06122-06/2812001 <br /> Client P O Date Analyzed 06122-06/2812041 <br />' Gasoline 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 /> Ethyl- %Recovery <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene benzene Xylenes Surrogate <br />' 70419 UST3/06180 W 95,a ND 6 7 6 0 2 4 15 91 <br /> 1 <br />' 70420 UST4/06180 W 110,a ND 89 71 2 7 16 100 <br /> 1 <br /> 70421 UST5/06180 W 430,a ND 5 5 1 8 ND ND 106 <br /> 1 <br /> 70422 UST6/06180 W ND ND ND ND ND ND 105 <br /> 1 <br /> 70423 SMDW/061 W ND ND ND ND ND ND 103 <br /> 801 <br />' 70424 LGDW/0618 W ND ND ND ND ND ND 105 <br /> 01 <br /> 70425 UST1/06180 W ND ND 3 4 2 5 1 1 6 0 101 <br /> 1 <br /> 70426 UST2/06180 W 150,a ND 17 11 41 23 99 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L5 0 0 5 0 5 05 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 /> 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 /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline9), 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(7),0 <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water ininuscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattern <br /> ' DHS Certification No 1644 Edward Hamilton,Lab Director <br />