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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax :925-798-1622 <br /> rr http://www.mccampbell.com E-mail:main@mccampbell.com <br /> l <br /> John P. Cummings&Associates Client Project ID:#0399002.00;Jamar Date Sampled:09/09/99 <br /> s J <br /> P.O.Box 2847 SS Date Received:09/13/99 <br /> Fremont,CA 94536-2847 Client Contact:John Cummings Date Extracted: 09113-09118199 <br /> Client P.O: Date Analyzed:09/14-09118199 <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 RWQCB(SF flay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 19115 B3-50 S 28,a --- 0.68 0.97 0.34 1.6 96 <br /> 19116 B3-55 S 18,a --- 2.2 3.1 0.39 2.2 103 <br /> 19117 B3-60 S 14,a --- 1.1 0.15 0.013 1.4 103 <br /> 19118 B3-65 S 5.0,a --- 1.0 0.15 0.017 0.70 104 <br /> 19119 B3-70 S 1.0,a --- 0.20 0.010 ND 0,085 109 <br /> 19120 B3-74 S ND --- ND ND ND ND 110 <br /> i <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 thcir <br /> interpretation: a) unmodified or weakly modified gasoline is significant; b) heavier gasolinerange 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 patternthat does not appear to be derived from gasoline(7);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 /> t sheen is present;i)liquid sample that contains greater than—5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644f.ln —Edward Hamilton,Lab Director <br />