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r110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 4 McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax: 925-798-1622 <br /> http://www.mccampbell.com E-mail:main@mccampbell.com <br /> 1T Corporation Client Project ID:#772233;Pac Bell Date Sampled: 04/29/02 <br /> 4005 Port Chicago Hwy, Date Received: 04/29/02 <br /> Concord, CA 94520-1120 Client Contact:Rob Delnagro Date Extracted: 04/29/02 <br /> Client P.O: Date Analyzed: 04/29/02 <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 Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 0204462 PE-SP-1(A-D) S --- --- ND ND ND ND 106 <br /> -001 <br /> Reporting Limit unless W 50 ttg/L 5.0 0.5 0.5 0.5 0.5 <br /> otherwise stated;ND means <br /> not detected above the <br /> 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 in <br /> ug/L <br /> u cluttered chromatogram;sample peak coelutes with surrogate peak <br /> 1 'Me 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 gasoline?);c) <br /> lighter gasoline range compounds(the most mobile fraction)are significant;d)gasoline range compounds having broad chromatographic peaks <br /> are significant;biologically altered gasoline?;c)TPH pattern that does not appear to be derived from gasoline(?);Q one to a few isolated peaks <br /> present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than water immiscible sheen is present;i)liquid sample <br /> that contains greater than—5 vol.%sediment;j)no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />