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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 !b B T E X TPHg <br /> 12/16/93 MW6 <0 60 <0 60 <0 60 <0 60 <50 <br /> Continued MW7 <0 50 <0 50 <0 60 <0 50 <60 <br /> MW8 <0 60 <0 50 <0 60 <0 60 <60 <br /> 04/29/94 MW1 1 9 1 0 1 2 20 130 <br /> MW2 21 <O 50 <0 60 <0 50 75' <br /> MW3 35 <0 50 <0 50 <0 60 2,0002 <br /> MW4 <0 60 <0 50 <0 50 <0 50 <60 <br /> MW5 3,600 850 430 1,500 13,000 <br /> MW6 <0 60 <0 60 <0 50 <0 60 <60 <br /> [::MW7 <O 60 <0 50 <0 60 <0 50 <60 <br /> MW8 <0 60 <0 60 <0 60 <0 50 <60 <br /> Primary/Secondary MCLs 1 O/NA 1000/40 680130 1750120 NA <br /> ppb = parts per billion = prglf = 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 = Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8016 <br /> < G Not Detected at or Above Method Detection Limits <br /> = Semple chromatogram does not match gasoline fingerprint <br /> 2 = Sample chromatogram contains an unidentified peak which does not match gasoline fingerprint <br /> 3 = When compared to the gasoline standard, chromatogram contains a higher proportion of peaks that <br /> elute before benzene <br /> NA = Not Analyzed <br /> 90-94TABI-LAB <br />