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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 /> htW://www.mccampbell.com E-mail:main@mccampbell.com <br /> ' Advanced GeoEnvironmental Client Project ID: Bobs Muffler Shop Date Sampled: 05/17/2000 <br /> 4005 North Wilson Way Date Received. 05/18/2000 <br /> Stockton, CA 95205 Client Contact: Tony Mikacich Date Extracted: 05/18-05120/2000 <br /> Client P.O: Date Analyzed: 05/18-0512012000 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602;California RW B SF BayRe ion method GCFI 5030 <br /> Lab ID Client TD Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 38272 MW-I W 1100,b,j --- ND 1.0 0.82 ND 104 <br /> ' 38273 MW-2 W 1600,b,j --- 1.5 2.0 14 1.3 --# <br /> 38274 MW-3 W 2200,b,j --- 2.4 2.2 58 4.3 # <br /> ' 38275 MW-4 W 930,b,j --- ND 0.71 8.5 11 --- <br /> 38276 MW-5 W 20,000,b --- ND<4 ND<4 1600 1900 103 <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 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 (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 resent;i Ii uid sample that contains greater than—5 vol.%sediment;' no recognizable pattern. <br /> DHS Certification No. 1644 Edward Hamilton, Lab Director <br /> 1 <br />