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1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> F4 4 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 ham?//www mccampbell,corn E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Project ID Cherokee Truck Stop Date Sampled 09/27-09/29/99 <br /> 4005 North Wilson Way Date Received 10/01/99 <br />' Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 10/01-10/07/99 <br />' Client P O Date Analyzed 10/01-10/07/99 <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 /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 22536 B21-25 S NO ND NO ND NO NO 103 <br />' 22537 B22-15 S NO NO ND ND NO NO 100 <br />' 22538 B22-25 S NO NO ND NO ND NO 95 <br /> 22539 B22-35 S ND NO 0 057 NO NO ND 101 <br />' 22540 B22-40 S NO ND NO NO NO NO 103 <br /> 22541 B23-10 S NO NO ND ND ND NO 100 <br />'• 22542 B23-25 S ND NO ND NO NO NO 98 <br /> 22543 B24-15 S NO NO ND ND NO NO 100 <br /> 22544 B24-25 S NO NO NO NO NO NO 101 <br /> I 22545 B25-20 S NO NO NO NO NO NO 102 <br /> 22546 B25-30 S NO NO NO NO NO NO 102 <br /> 22547 B26-5 S ND NO ND ND ND NO 100 <br /> 22548 B26-20 S ND NO NO NO NO ND 100 <br /> 22549 B26-30 S NO NO NO NO NO NO 100 <br /> Reporting Limit unless W 50 ug/L, 50 05 05 05 05 <br /> otherwise stated,NO <br />' means not detected above <br /> the reporting limit mg/kg S 1 0 m /k 005 0 005 0 005 0 005 0 005 <br /> Y " 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 /> I 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 /> gasoline')), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasolme9 e)TPH pattern that does not appear to be derived from gasoline(9),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 /> Isheen is present,0liquid sample that contains greater than—5%of %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 ..Edward Hamilton,Lab Director <br />