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l� <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> http://www.mccampbcll.com E-mail:main@mccampbell.com <br /> I Advanced GeoEnvironmental Client Project ID:Elkhorn Sue Jan/Feb Date Sampled: 02/07/00 <br /> 4005 North Wilson Way Date Received;02/08/00 <br /> i <br /> Stockton, CA 95205 Client Contact: Bill Little Date Extracted: 02/08/00 <br /> Elientl?.O: Date Analyzed:02/08/00 <br /> Gasoline Range(C&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 Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 30552 Post ox Air ND --- ND ND ND ND 98 <br /> l <br /> -;? 30553 Pre ox Air I000,b --- ND 39 13 92 112 <br /> -=i <br /> _j Reporting Limit unless Air SO ug/L 5.0 0.5 0.5 6.5 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 coelules 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 signiftcant(aged <br /> i 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 immiscible <br /> sheen is present;i)liquid sample that contains greater than—5 vol.%sediment;j)no recognizable pattern. <br /> I i <br /> - DHS Certification No. 1644 Edward Hamilton,Lab Director <br />