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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 9255-798-1622 <br /> http//www mccampbell corn E-mail main@mccampbell corn <br />' Advanced GeoEnvironmental Client Protect ID Curtis Pontiac <br /> Date Sampled 04/26/01 <br /> 837 Shaw Road Date Received 04/26/01 <br /> I Stockton, CA 95215 Client Contact Brian Millman Date Extracted 04/26-04/30/01 <br /> Client P 0 Date Analyzed 04/26-04/30/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,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 />' <br /> 66187 MW1A/ W ND - benzene Surrogate <br /> ND ND ND ND 105 <br /> 042501 <br /> MWIB <br /> 66188 042501/ W 1300,a --- 400 27 43 22 -- <br />' 66189 MW2A/ W ND --- ND ND ND ND 103 <br /> 042501 <br /> 66190 MW2B/ W ND --- ND ND ND ND 104 <br />' 042501 <br /> 6191 MW3/ W ND --- ND ND ND ND 105 <br /> 042501 <br />' 66192 MW4/ W 120,a --- 32 078 4 0 21 107 <br /> 042501 <br /> 66193 4 / <br /> 04250! W ND --- ND ND ND ND 107 <br /> 25 <br />'. 66194 MW6/ W ND --- ND ND ND ND 109 <br /> 042501 <br /> 66195 MW7/ W ND --- ND 066 ND ND 107 <br />' 042501 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 0 5 0 5 05 0 5 <br /> otherwise stated ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 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 TPH chromatogram are Lursory 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 /> gasolme9), 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's,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,i)liquid sample that contains greater than—5 vol %sediment,1)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />