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110 2nd Avenue South,#177,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbell com E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Chase-Van Buren Date Sampled 03/15/01 <br /> 837 Shaw Road Date Received 03/20/01 <br />' Stockton, CA 95215 Client Contact Paul Dotson Date Extracted 03/22-03123/01 <br /> Client P O Date Analyzed 03/22-03/23/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether*&BTEX* <br /> BPA methods 5030,modified 8015,and 8020 or 602,Califomia RWQCB(SF Bay Region)method GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene I <br /> Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 63369 MW22-15 S ND --- ND ND ND ND 94 <br />' 63370 MW22-20 S ND --- ND ND ND ND 103 <br /> 63375 MW23-15 S ND --- ND ND ND ND 101 <br />' 63376 MW23-20 S ND --- ND ND ND ND 99 <br />' <br /> J- <br /> 63379MW24-15 S ND --- ND ND ND ND 95 <br /> 63380 MW24-20 S ND ND ND ND ND 104 <br /> I <br />' Reporting Limit unless W 50 ug/L 5 0 0 5 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit mg/kg S 1 0 m /k 0 05 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported m 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 /> N 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 /> I 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 gasoline9,e)TPH pattern that does not appear to be derived from gasoline(7),0 <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, )no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />