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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 /> htWp//www.mccarnpbell.com E-mail:main@mccampbell.com <br /> i Advanced GeoEnvironmental Client Project ID:Elkhorn Date Sampled. 07/31/98 <br /> 4005 North Wilson Way Date Received: 48/04/98 <br /> Stockton,CA 95205 Client Contact:Bill Little Date Extracted:08/04/98 <br /> rClient P.O: Date Analyzed. 08/04-08/06/98 <br /> Gasoline Range(C&M)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> FPA methods 5030,modified 8015,and 8020 or 602;California RWQCB(SF Bay Region)method GCFTD(5030) <br /> Lab 1D Client ID Matrix TPH(g)+ Ethylben- %Recovery MTBE Benzene Toluene zene Xylenes Surrogate <br /> 93028 IAS4-35 S 3.2,a ND 0.047 0.82 0.095 0.46 101 <br /> iJ <br /> 93029 SVE5-15 S 15,000,b ND<10 ND<0.5 83 330 2100 95 <br /> 93030 SVE5-20 S ND ND ND 0.008 0.009 0.055 102 <br /> 93031 SVE5-25 S 15,b ND ND<0.01 0.57 0.31 2.1 103 <br /> 93032 SVE5-35 S 870,a ND<5 7.4 28 8.7 48 99 <br /> i <br /> J <br /> t-� <br /> F�3 <br /> Reporting Limit unless W 50 ug/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND <br /> r means not detected above <br /> the reporting limit S 1.0 mg/kg 0.05 0.005 0.005 0.005 0.005 <br /> 4. <br /> "water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mglkg,and all TCLP and SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram;sample peak coelutes with surrogate peak <br /> 'The fallowing 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 /> i, gasoline?); c) lighter gasoline range compounds (the most mobile faction) 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 /> DHS Certification No. 1644 ��� Edward Hamilton,Lab Director <br />