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i <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> htty//www mccampbell coin E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Flag City Chevron Date Sampled 06/13/01 <br /> 837 Shaw Road Date Received 06/14/01 <br /> Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 06/15/01 <br /> Client P a Date Analyzed 06/15/01 <br /> Gasoline Range(C6-Cl2)Volatile Hydrocarbons as Gasolene*,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 Ethyl Xylenes %Recovery <br />' benzene Surrogate <br /> 69766 01 6130 t W ND ND ND ND ND ND 96 <br />' 69767 MWS B W ND ND ND ND ND ND 96 <br /> 061301 <br /> 69768 MW8 C W ND ND ND ND ND ND 98 <br /> 061301. <br />' 69769 MW9 A W ND 74 ND ND ND ND 99 <br /> 061301 <br /> 69770 MW9 B W ND ND ND ND ND ND 103 <br /> 061301 <br />' 69771 MW9 C W ND ND ND ND ND ND 98 <br /> 061301 <br /> 69772 MW10 A W ND ND ND ND ND ND 95 <br /> 061301 <br /> 69773 MW 10 B W ND ND ND ND ND ND 108 <br /> 061301 <br /> 69774 MW10 C W ND ND ND ND ND ND 106 <br /> 061301 <br /> 69775 MW10 D W ND ND ND ND ND ND 97 <br /> 061301 <br /> 69776 MW10 E W ND ND ND ND ND ND 107 <br /> 061301 <br /> Reporhng Linut unless W 50 ug/L 50 05 05 0 5 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit $ 10 mg/kg 0 05 0 005 0005 0 005 0 005 <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 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 McCampbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modtficd 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 denved from gasoline(?),f) <br /> one to a few isolated peaks present,g)strongly aged gasolme 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,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />