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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' 24 http//www mccampbell cam E-mail main@mccampbell com <br /> s <br />' Advanced GeoEnvironmental Client Project LD National Freight Date Sampled 08/30/001 <br /> 837 Shaw Road Date Received 08/31/01 <br />' Stockton, CA 95215 Client Contact Paul Dotson Date Extracted 08/31-09/05/01 <br /> Client P O Date Analyzed 08/31-09/05/01 <br /> Gasoline Range(C&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 Matnx TPH(g)' MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 76701 MWl/08-30-01 W 630,g,h ND ND ND ND ND 99 <br />' 76702 MW2/08-30-01 W ND ND ND ND ND ND 108 <br /> 76703 MW3/08-30-01 W ND ND ND ND ND ND 109 <br />' Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 05 0 5 <br /> otherwise stated,ND means <br /> not detected above the S 10 <br /> reporting limit mg/kg 0 DS 0 005 0 005 0 005 0 005 <br /> water and vapor samples are reported in ug/L,wipe samples in uglwipe,sail 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 McCampbel] 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 gasolmel,e)TPH pattern that does not appear to be derived from gasoline("),0 <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant, h)lighter than water imrrnscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattem <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br />