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10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> )bj//www,rnggumpbell com E-mail main@mccampbell com <br /> • <br /> 1 Advanced GeoEnvirorunental Chent Project ID Cherokee Truck Stop Date Sampled 09/27-09/29/99 <br /> 4005 North Wilson Way Date Received 10/01/99 <br /> 1 Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 10/01-10/07/99 <br />' Client P O Date Analyzed 10/01-10107/99 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,viith Methyl Cert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and$020 or 602,Cal,fomia 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 /> 22550 B26-60 S ND ND ND ND ND ND 100 <br />' 22551 B27-15 S ND ND ND ND ND ND 102 <br />' 22552 B27-25 S ND 24 0 048 ND ND ND 105 <br /> 22553 B27-30 S ND 4 0 ND ND ND ND 103 <br />' 22554 B27-40 S ND 13 ND ND ND ND 102 <br /> 22555 B27-50 S ND ND ND ND ND ND 101 <br />'. 22556 B27-60 S ND ND ND ND ND ND 98 <br /> 22557 B28-20 S ND ND ND ND ND ND 97 <br />' 22558 B28-30 S ND ND ND ND ND ND 100 <br /> 22559 B29-20 S ND ND ND ND ND ND 99 <br /> 22560 B29-30 S ND ND ND ND ND ND 99 <br /> Reporting Limit unless W 50 ug/L 5 0 05 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting lima g g S 1 0 m /k 0 05 0 005 0 005 0005---- 0 005 <br /> "water and vapor samples are reported in ug/1—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 significani(aged <br /> gasoline?), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> • chrotnatogaphic peaks are significant,biologically altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(1),t) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than eater immiscible <br /> Isheen is present,i}liquid sample that contains greater than�5 vo! %sediment l)no recognizable pattern <br /> DI-IS Certification No 1644 ,Edward Hamilton, Lab Director <br />