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' 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 1 btW//www mgggmpbell com E-mail main@mccampbell com <br /> •' Advanced GeoEnvironmental Client Project ID West Clay Properties Date Sampled 08/31-09/01/98 <br /> 4005 North Wilson Way Date Received 09/02/98 <br />' Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 09/02-09/03198 <br /> Client P O Date Analyzed 09/02-09/03/98 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Meth)l tert-Butyl Ether* &BTEX* <br /> EPA 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 Ethylben- Xylenes %Recovery zene Surrogate <br /> 94480 M W-l/ W 24,000,a ND<200 5200 230 1400 1200 98 <br /> 8-31-98 <br /> 94481 MW-2/8-31-99 W 47,000,a ND<200 5100 5600 2100 7700 96 <br /> 94482 MW-3/ W ND -ND ND ND ND ND 91 <br /> 8-31-98 <br /> 94483 MW-4/ W ND ND ND ND ND ND 94 <br /> 8-31-98 <br /> 94484 MW-51 W ND ND ND ND ND ND 92 <br /> 8-31-98 <br /> 94485 83198 W NQ,i NQ �Nl\ ND ND ND 95 <br /> 94486 MW-6B/ W ND,i ND 0 69 ND ND 056 92 <br /> 8-31-98 <br /> 94487 MW-8A/ W ND,i ND _ ND ND ND ND 91 <br /> 8-31-98 <br /> 94488 MW-8B/ W ND ND 092 ND ND , ND 98 <br /> 8-31-98 <br /> 94489 9 W9$/ W 220,a ND ( 43 1 ND 4 2 2 6 / 95 <br /> e <br /> Reporting Limit unless W 50 ug/L 5 0 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,,A ipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SDLP extracts <br /> in ug/L <br /> I <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory m nature and McCampbell Analytical is not responsible for their <br /> interpretation a) unmodified or weak]) 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 gasolmV,e)TPH pattern that does not appear to be denved from gasoline(1),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 /> a <br /> sheen is present,i)liquid sample that contains greater than—5%ol %sediment 3)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />