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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 /> bitp://www.mri;amphr.li.gom main@mccampbell.com <br /> i <br /> Advanced GeoEnvironmental Client Project ID:Welden Church Date Sampled: 02/24/99 <br /> 4005 North Wilson Way Date Received: 02/26/99 <br />' Stockton, CA 95205 Client Contact:Nuel Henderson Date Extracted: 02/26-02/27/99 <br /> Client P.O: Date Analyzed: 02/26-02/27/99 <br /> I 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 ID Client ID Matrix TPH(g)` MTBE Benzene Toluene Eth en en- Xylenes %Recovery <br /> ze Surrogate <br /> 04105 MW-1/ W 1200,a ND 610 11 ND 47 98 <br /> 2-24-99 <br /> I 04106 MW-2/ W ND ND ND ND ND ND 104 <br /> 2-24-99 <br /> 04107 MW-3/ W ND ND ND ND ND ND 104 <br /> 2-24-99 <br /> I 04108 MW-4/ W 1800,a ND<10 80 17 99 100 98 <br /> 2-24-99 <br /> 04109 MW-5/ W ND ND ND ND ND ND 94 <br /> 2-24-99 <br /> 04110 MW-6u/ W ND ND ND ND ND ND 100 <br /> 2-24-99 <br /> 04111 MW-61/ W ND ND ND ND ND ND 105 <br /> 2-24-99 <br /> 04112 MW-7/ W ND ND ND ND ND ND 99 <br /> 2-24-99 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> means not detected above <br /> the reporting limit S 1.0 mg/kg 0.05 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 /> 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(?);0 <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. 1644 /�� Edward Hamilton,Lab Director <br /> .- <br />