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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> l <br /> 4 7MC <br /> MPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http I/www mccampbell com E-mail main@mccampbell com <br /> ie E <br />' Advanced GeoEnvironmental Client Project ID MBP Mossdale Date Sampled 10/03/2000 <br /> 4005 North Wilson Way Date Received 10/04/2000 <br />' Stockton, CA 95205 Client Contact Bill Little Date Extracted 10/06-10/09/2000 <br />' Client P O Date Analyzed 10/06-1010912000 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasolene*,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 ID Client ID Matrix TPH(g) MTBE Benzene Toluene Et hens n Xylenes %Recovery <br /> 49439 MW-01/010-3- W 70,b,i 170 ND ND ND ND 101 <br /> 49440 <br /> MW-2/10-3- W 2000,a,i 26 3 7 3 9 160 24 105 <br /> 49441 MW-003/10-3- W ND,i ND ND ND ND ND 102 <br />' 49442 MW 0010-3- W ND,i 40 ND ND ND ND 104 <br /> 49443 MW-50/10-3- <br /> 00 <br /> W ND,i ND ND ND ND ND 103 <br />' 49444 DW-IAIIO W ND ND ND ND ND ND 104 <br /> 3-00 <br />'. 49445 <br /> DW-113/10- W ND ND ND ND ND ND 106 <br /> 3-000 <br /> 1 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 05 05 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 samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/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 /> I interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasolme'i), 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(°),t) <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,1)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 tj Edward Hamilton, Lab Director <br /> I <br />