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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 64htto I/www niccam�ibell com E-mail main@mccampbell corn. <br /> Advanced GeoEnvironmentai Client Project ID National Freight Date Sampled 05/31/01 <br /> 837 Shaw Road Date Received 06/01/01 <br />' Stockton, CA 95215 Client Contact Paul Dotson Date Extracted 06/01-06/04/01 <br /> Client P O Date Analyzed 06/01-06/04101 <br />' Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether*&BTEX* <br /> 1✓PA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br />' <br /> I ]Lab ID Client ID Matrix TPH(g)+ MTBEthyl-E Benzene Toluene Xylenes %Recovery <br /> benzene Surrogate <br /> 68792 MWl/ W 490,g,h ND ND ND ND ND 100 <br /> 05-31-01 <br /> 68793 MW2/ W ND ND ND ND ND ND 104 <br /> 05-31-01 <br /> 68794 MW3/ W ND ND ND ND ND ND 104 <br /> 05-31-01 <br /> I <br /> 1 <br />' Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit mg/kg S 1 0 m /k 005 0 005 0 005 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 chromatagram,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 />' gasolmeh), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasohneP,e)TPH pattern that does not appear to be derived from gasoline(9),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 1)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Harrulton,Lab Director <br />