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TABLE 3 <br /> LABORATORY ANALYSES - GROUNDWATER <br /> Knowles Property - Stockton, CA <br /> Page 6 of 6 <br /> (in parts per billion) <br /> DATE f WELL ID BENZENE TOLUENE ETHYLBENZENE XYLENES TPHG <br /> 11/05/98 MW1 20 <05 23 18 1,000 <br /> MW4 <05 <05 <05 <06 <50 <br /> MW5 7 900 2,900 1,100 7,000 66,000 <br /> MW8 <05 <05 <05 <05 <50 <br /> 02/24/99 MW1 08 <05 10 1 5 63 <br /> MW3 <05 <05 <05 <05 <50 <br /> MW4 <05 <06 <06 <05 <60 <br /> MW5 s 10,000 5000 1,500 9,500 65,000 j01b <br /> MW8 05 <06 <05 <06 <50 <br /> Primary MCLS 10 100 680 1,750 NA <br />• NOTES <br /> TPHG _ Total Petroleum Hydrocarbons as Gasoline Analyzed by EPA Method 8015, Benzene, Toluene, <br /> Ethylbenzene, Xylenes analyzed by EPA Method 8020 <br /> < = Not Detected at or Above Method Detection Limits <br /> = Sample chromatogram does not match gasoline fingerprint <br /> 2 = Sample chromatogram contains an unidentified peak which does not match gasoline fingerprint <br /> = When compared to the gasoline standard chromatogram contains a higher proportion of peaks that <br /> elute before benzene <br /> MCLs = Maximum Contaminant Levels <br /> NA = Not Applicable <br /> groundzelknowles hamlgwhb doc <br />