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I 10 Second Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone 510-798-1620 Fax 510-798-1622 <br /> http/hvww rriccampbell corn E-mail inain@mecampbell corn <br /> Advanced GcoEnvironmental Client Project ID Cherokee Truck Stop Date Sampled 06/26/97 <br /> 1803 West March Lane, Ste A Date Received 06/27/97 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 06/29/97 <br /> Client P O Date Analyzed 06/29/97 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,,,N ith Methyl tert-Butyl Ether* & BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GMD(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBEBenzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 78087 MW-2 W ND ND ND ND ND 1 1 105 <br /> 78088 MW-3 W ND ND ND ND ND ND 106 <br /> 78089 MW-4 W ND ND ND ND ND ND 105 <br /> 78090 MW-5 W 600,c,a ND<20 6 1 093 24 1 4 99 <br /> Reporting Limit unless W 50 ug/1' 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> "%Nater and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all I CLP and SPEP erlracts <br /> m 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 Lange compounds are siginfcant(aged <br /> gasolme9), c) lighter gasoline range compounds (the most mobile traction) are significant, d) gasoline range compounds having broad <br /> ® chromatographic peaks are significant,biologically altered gasohne9,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«ater immiscible <br /> sheen is present i)liquid sample that contains greater than--5 vol %sediment,i)no recognizable pattern <br /> DHS Certification No 1644 �Edward Hamilton,Lab Director <br />