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1 <br /> TABLE 2 <br /> Summary of Laboratory Analyses - Water <br /> Knowles Property - Stockton, CA <br /> Page 5 of 5 <br /> (in ppb) <br /> ' SAMPLE DATE WELL w B T E X TPHO <br /> ' 12/16/93 MW6 <0 50 <0 50 <0 50 <0 50 <50 <br /> Continued MW7 <0 50 <0 50 <0 50 <0 50 <60 <br /> ' MW8 <0 50 <0 50 <0 50 <0 50 <50 <br /> 04/28/94 MW1 1 8 10 1 2 20 130 <br /> S MW2 21 <0 50 <0 50 <0 50 753 <br /> MW3 36 <0 50 <0 50 <0 50 2,0002-3 <br /> MW4 <O 60 <0 50 <0 50 <0 60 <60 <br /> ' MW5 3,500 850 430 1,500 13,000 <br /> MW6 <0 50 <0 50 <0 60 <0 50 <50 <br /> ' MW7 <0 50 <0 50 <0 50 <0 60 <50 <br /> MW8 <0 50 <0 50 <0 60 <0 60 <60 <br /> Primary/Secondary MCL.s 1 O/NA 1000/40 680/30 1750/20 NA <br /> ppb = parts per billion = Ng/f micrograms per liter <br /> ' B Benzene, Analyzed by EPA Method 8020 <br /> T Toluene, Analyzed by EPA Method 8020 <br /> E Ethylbenzene, Analyzed by EPA Method 8020 <br /> X = Xylenes, Analyzed by EPA Method 8020 <br /> ' TPHG s Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8015 <br /> < n Not Detected at or Above Method Detection Limits <br /> I Sample chromatogram does not match gasoline fingerprint <br /> 2 Sample chromatogram contains an unidentified peak which does not match gasolrne fingerprint <br /> ' 3 = When compared to the gasoline standard, chromatogram contains a higher proportion of peaks that <br /> alute before benzene <br /> NA Not Analyzed <br /> 1 - <br /> 1 <br /> 90-93TABLLAB <br /> 1 <br />