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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 /> http//www rnEa bell coin E-mail main@mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID #0111, Grandme Gas Date Sampled 06/18/98 <br />' <br /> 4005 North Wilson Way &Food Date Received 06/20/98 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 06/22-06/25198 <br />' Client P O Date Analyzed 06/22-06125198 <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 Say Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 90881 MWtI/g-18 W 170,a 180 52 ND 49 53 98 <br />' 90882 MW2/-18 W 140,a ND 50 ND 43 25 103 <br /> 98 <br /> 90883 MW3/86-18 W ND ND ND ND ND ND 95 <br />' 90884 MW4/6-18- W 120,g,h 81 21 ND ND ND 102 <br /> 98 <br />' 90885 MWS/6-18- W 78d 63 ND ND ND 075 105 <br /> 98 <br /> 90886 MW98/6-18 W ND ND ND ND ND ND 96 <br /> 1• <br /> 1 <br />' Reporting Limit unless <br /> W SOug/L 50 OS 05 05 OS <br /> otherwise stated,ND <br />' means not detected above <br /> the reporting limn S 1 0 m /kg 8 005 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 />' mug/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 signiftcant(aged <br /> gasoline"), c) lighter gasoline range compounds (the most mobile traction) 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)lighter than water immiscible <br /> Isheen is present,t)liquid sample that contains greater than�5 vol %sediment j)no recognizable pattern <br /> DHS Certification No 1644 / Edward Hamilton,Lab Director <br />