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110 2nd Avenue South,4D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell com E-mail main@mccampbell cam <br /> Advanced GeoEnvironmental Client Project ID MBP-Manteca Date Sampled 03/29/01 <br /> 837 Shaw Road Date Received 04/03/01 <br /> Stockton,CA 95215 Client Contact William Little Date Extracted 04103-04/05/01 <br /> Client P D Date Analyzed 04/03-04/05/01 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-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 /> ' 64495 Ewl 03 901 W ND --- ND ND ND ND 97 <br /> 64496 OMWI W ND<330 --- ND<l0 ND<10 ND<l0 ND<l0 104 <br /> 64497 OMW2 W ND --- ND ND ND ND 106 <br /> 2901 <br /> 64498 0312901 W ND --- ND ND ND ND 104 <br /> ' 64499 0M2901 W ND --- ND ND ND ND 108 <br /> ' 64500 OM 5 W ND --- ND ND ND ND 107 <br /> 64501 OMW6 W ND -- ND ND ND ND 107 <br /> 1 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L 5 0 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> the reporting limit <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 SDLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the fPH chromatogram are cursory in nature and McC.amptiell 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 /> gasohne9) 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 derived from gasoline(v),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 j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hanulton,Lab Director <br />