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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 /> htip/lwww mccaml2bell corn E-mail main@mccampbell com <br /> W A Craig, Inc Client Project ID #3954, Mason Center <br /> Date Sampled 11/03/00 <br /> 6940 Tremont Road Stockton Date Received 11/03/00 <br /> Dixon,CA 95620-9603 Client Contact Tim Cook Date Extracted 11/03/00 <br /> Client P O Date Analyzed 11/03/00 <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 GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 52123 4A S ND ND ND ND ND ND I08 <br /> 52124 5A S ND ND ND ND ND ND 107 <br /> 52125 6A S ND ND ND ND ND ND 106 <br /> 52126 4B S ND ND ND ND ND ND 106 <br /> 52127 5B S ND ND ND ND ND ND I06 <br /> 52128 613 S ND ND ND ND ND ND 106 <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 0 5 05 <br /> otherwise stated ND <br /> means not detected above <br /> the reporting timet mg/kg S 1 0 m /k 0 05 0 005 0 005 0 005 0 005 <br /> "water and varier samples are reported in ue/L wine samples in ue/wme sod and slnrtQP samnlps,n mv/kv ami q11 Tri P and CPT P P t—tc <br /> A cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPII 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 /> gasoline9), 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)TPIi pattern that does not appear to be derived trom gasoline(?),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds am significant, h)lighter than water immiscible <br /> sheen is present Q liquid sample that contains greater than—5 vol %sediment,3)no recognizable pattern <br /> DHS Certification No 1644 "� Edward Hamilton,Lab Director <br />