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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> IhttA//www mccam bell com E-mail ma n@mccampbeit com <br /> Date Sampled 03/28/01 <br /> Advanced GeoEnvironmental Client Project ID Cherokee Trucking <br /> Date Received 03/29/01 <br /> 837 Shaw Road <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 03/29-04/02101 <br /> Client P O Date Analyzed 03129-04102101 <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 1D Matrix TPH(g)- MTBE Benzene Toiuene Ethyl- Xylenes %Recovery <br /> I benzene Surrogate <br /> 64154 MWI//03-28- W ND ND 6 2 ND ND ND 103 <br /> Ol <br /> 64155 MW 0103-28 W ND ND ND ND ND ND 101 <br />' 1 1 <br /> 64156 MW3//03-28- W ND ND ND ND ND ND 105 <br /> 01 <br />' MW <br /> 64157 4/03-28- <br /> 01 W ND ND ND ND ND ND 104 <br /> 64158 MW5/03-28-61 W 730,c ND 93 21 091 ND 113 <br />' 64159 MW60/03-28- W ND ND ND 12 ND 052 105 <br /> 64160 Small Well W ND ND ND 056 ND ND 96 <br />' 64161 Large Well W ND ND ND ND ND ND 93 <br />' Reporting Limit unless W 50 ug/L 50 0 5 0 5 0 5 05 <br /> otherwise stated,IND <br /> means not detected above S 1 0 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 SDLP 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 /> 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 gasoline?,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 water immiscible <br /> • sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br />