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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 /> hUp//www mccampbell corn E-mail main@rnccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Yamada Brothers Date Sampled 12/11/00 <br /> 4005 North Wilson Way Date Received 12/12/00 <br /> IStockton,CA 95205 Client Contact Paul Dotson Date Extracted 12/12/00 <br /> Client P O Date Analyzed 12/12/00 <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,Califnmia RWQCB(SF Bay Region)method GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethzen e en- Xylenes %Recovery <br /> Surrogate <br /> 55728 DW-l/ W ND ND ND ND ND ND 107 <br /> 12-11-00 <br />' 55729 MW-l/ W ND ND ND ND ND ND 101 <br /> 12-11-00 <br /> 55730 MW-2/ W ND ND ND ND ND ND 104 <br />' <br /> 12-11-00 <br /> 55731 MW-3/ W ND 58 ND ND ND ND 98 <br /> I2-11-00 <br /> 1 • <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> meathe reporting limit ns not detected above S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br />' <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 to nature and McCampbell Analytical is not responsible for their <br /> tnterpretanon a) unmodified or weakly modified gasoline is significant, b) heavrcr gasoline range compounds are sigmficant(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 gasolmeh,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,b)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 /> 1 <br />