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110 2nd Avenue Ejuth,#D7,Pacheco,CA 945-)3-5560 <br /> Mc""'AN1PBELL AiiNALYTICA_, NC Telephone 925-798-1620 Fax 925-798-1622 <br /> http/,www mccamnbell corn E-mail main@mccampbell com <br /> i <br /> Advanced GeoEnvironmental Client Project ID Flag City Chevron Date Sampled 11/07/01 <br /> 837 Shaw Road Date Received 11/08/01 <br /> Stockton, CA 95215 Chert Contact Tun Cuellar Date Extracted 11,12/01 <br /> Ghent P 0 Date Analyzed 11/12/01 <br /> Gasohne Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tern-Butyl Ether* &BTEX* <br /> PPA methods 5030,modified 8015,and 8020 or 602,California RW4-CB(SF Say Region)method GCFID(5030) <br /> I Lab ID Client ID Matnx TPHWg MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 83121 Influent W I ND 18 ND ND ND ND 104 <br /> 83122 EffluentW ND IN ND ND ND ND 100 <br /> I <br /> I <br /> I � <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above �g <br /> I <br /> the reporting limit S l O m 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 chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TP11 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)TPk1 pattern that does not appear to he derived from gasoline(1) 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,i)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />