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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 /> / http://www.mccampbell.com E-mail: main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID: Elkhorn Date Sampled: 10/25/99 <br /> 4005 North Wilson Way Date Received: 10/27/99 <br /> Stockton, CA 95205 Client Contact: Bill Little Date Extracted: 10127-10128/99 <br /> Client P.O: Date Analyzed: 10/27-10/28/99 <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 RWQC13(SF Bay Region)method GCF1D(5030) <br /> l! Lab ID Client 1D Matrix TPH(g)+ MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> =l zene Surrogate <br /> 24159 MW-I/ W ND ND ND ND ND ND 99 <br /> 10-25-99 <br /> 24160 MW-2/ W 56i ND ND ND ND ND 102 <br /> 10-25-99 <br /> 24161 MW-3/ W ND ND ND ND ND ND 101 <br /> E 10-25-99 <br /> 24162 MW-4/ W ND ND ND ND ND ND 101 <br /> 10-25-99 <br /> r 24163 MW-5/ 'W 57 ND 1.2 ND ND ND 106 <br /> 10-25-99 <br /> 24164 MW-6/ W ND ND ND ND ND ND 103 <br /> 10-25-99 <br /> Reporting Limit unless W 50 ug/L. 5.0 0.5 0.5 0.5 0.5 <br /> othenvise slated;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 coclutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCarnpbell 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 ([be most mobile fi-action) 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(•); <br /> � <br /> one to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than water immiscible <br /> f sheen is present;i)liquid sample that contains greater than--5 vol.%sediment;j)no recognizable patlem <br /> I <br /> DHS Certification No. 1644 C 1�Edward Hamilton, Lab Director <br /> l <br />