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' 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> 4McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbell com E-mail main@mccampbell corn <br />' Advanced GeoEnvtronmental Client Project ID Geweke <br /> Date Sampled 06/28/01 <br /> 837 Shaw Road Date Received 06/29/01 <br />' Stockton,CA 95215 Client Contact Brian Millman Date Extracted 06/29-07103101 <br /> Client P O Date Analyzed 06/29-07/03/01 <br />' Gasoline Range(C6-C22)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 Ethyl- Xylenes Recovery <br />' benzene Surrogate <br /> 71352 MW7/ W ND ND ND ND ND ND 98 <br /> 06-28-01 <br /> 71353 MW8/ W 5400,a ND<10 58 96 150 220 109 <br /> 06-28-01 <br /> 71354 MW9/ W 1900,a ND 26 9 1 43 20 113 <br /> 06-28-01 <br /> 71355 MW12/ W ND ND ND ND ND ND 100 <br /> 06-28-01 <br /> 71356 MW 14/ W 1200,a ND 120 30 26 100 103 <br /> 06-28 <br /> 1 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 0 5 0 5 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0005 <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 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)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 h)ilghter 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 />