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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCANTBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' E-mail main@mccampbeIl cam <br /> F' Advanced Ge oEnvironniental Client Project ID Curtiss Poutiar Date Sampled 09/21/99 <br /> 4005 North Wilson Way Date Received 09/23/99 <br />' Stockton,CA 95205 Client Contact Bill Little Date Extracted 09/26/99 <br /> Client P O Date Analyzed 09/26/99 <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 /> t Lab ID Client ID Matrix TPI-I(g)+ MTBE Benzene Toluene Zene Ethylben- Xylenes %Recovery <br /> Surrogate <br /> 19765 MW6 W ND ND ND ND ND ND 110 <br />' 19766 MW5 W ND ND ND ND ND ND 106 <br /> 19767 MW3 W ND ND ND ND ND ND 106 <br />' 19768 MW2B W ND ND ND ND ND ND 108 <br /> 19769 MW2A W ND ND ND ND ND ND 105 <br />' 19770 MW l A W 63,a ND 57 39 ND 25 108 <br /> 19771 MWiB W 2400,a ND<60 540 200 58 120 112 <br /> I <br /> I <br /> I <br /> Reporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit g g S 1 0 m /k 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 /> in ug/L <br /> N cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descnptions 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 sign ificant(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 gasoline9,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 /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No I644 �� Edward Hamilton Lab Director <br />