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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hIM://www E-mail main@mccampbell com <br /> IAdvanced GeoEnvironmental Client Project ID Curtiss Pontiac Date Sampled 12/07/99 <br /> 4005 North Wilson Way Date Received 12/08/99 <br />' Stockton,CA 95205 Client Contact Bill Little Date Extracted 12/08-12/09/99 <br /> Client P O Date Analyzed 12/08-12/09/99 <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 GCFID(5030) <br /> Lab 1D Client ID Matrix TPH(g)4 MTBE Benzene 'Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 26930 MW1A W ND ND 21 083 ND 1 7 102 <br /> 26931 MW 18 W 1300,a ND<30 390 79 31 55 103 <br /> 26932 MW2A W ND ND 14 ND ND 11 103 <br /> 26933 MW28 W ND ND ND ND ND ND 99 <br /> I 26934 MW3 W ND ND ND ND ND ND 104 <br /> 26935 MW4 W 1600,a 10 280 13 15 76 106 <br /> 26936 MW5 W ND ND ND ND ND ND 100 <br /> 26937 MW6 W ND ND ND ND ND 080 96 <br /> 26938 MW7 W 6900,a ND<50 310 180 130 970 100 <br /> Reporting Limit unless W 50 ug/L 50 05 0 5 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> water and vapor samples are reported in ug/L,wipe sarnpies in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> IOr ciuttered 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 /> I 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) lighter than water imrmscible <br /> sheen is present i)liquid sample that contains greater than—5 vol °1°sediment 1)no recognizable pattern <br /> DHS Certification No 1644 '1 Edward Hamilton, Lab Director <br />