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' F 4 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' lnr.//www.mccamphgll co m E-mail main@mccampbeIl com <br />' Advanced GeoEnvtronmental Client Protect ID #0445, Sierra Date Sampled 03/15/99 <br /> 4005 North Wilson Way Date Received 03/15/99 <br />' Stockton, CA 95205 Client Contact Tum Cuellar Date Extracted 03/17-03/18/99 <br /> Client P O Date Analyzed 03/17-03/18/99 <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,Califtimia RWQCB(SF Bay Region)method GCFiD(5030) <br /> Lab ID Client ID Matnx TPH(g)+ MTBE Benzene Toluene Ethylben-I Xylenes %Recovery zene Surrogate <br /> 05202 MW-1/ W 8400,a ND<50 770 35 520 280 100 <br /> 3-15-99 <br />' 05203 MW-2/ W 39,000,a ND<100 880 2800 1700 8400 101 <br /> 3-15-99 <br /> 05204 MW-3/3-15-99 W ND ND ND ND ND ND 103 <br />' 05205 MW-4A/ W 95,000,a ND<1000 3600 16,000 3400 18,000 102 <br /> 3-15-99 <br /> 05206 MW-4B/ W 3100,a ND<30 38 42 88 31 104 <br /> 3-15-99 <br />' 05207 MW-5/ W ND ND ND ND ND ND 95 <br /> 3-15-99 <br /> 05208 MW-6/ W 120,1 ND ND ND ND ND 108 <br /> 3-15-99 <br /> 05209 MW-7/ W ND ND ND ND ND ND 98 <br /> 3-15-99 <br /> Reporting Limit unless <br /> otherwise stated,ND W 50 ug/L 50 05 05 05 05 <br /> means not detected <br /> above the reporting S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> limit <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 /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasotme9), 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(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 /> sheen is present,i)liquid sample that contains greater than--5,,ol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />