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i <br /> • TABLE 4 <br /> LABORATORY ANALYSES - GROUNDWATER <br /> Knowles Property - Stockton, CA <br /> Page 7of7 <br /> rin parts per billion) <br /> DATE WELL JO SEN IE TQLUENE ETHYLSENZENE XYLENES TPHG <br /> 08/10/00 M W 1 13 <06 33 14 610 <br /> MW2 <05 <05 <0 6 <06 <50 <br /> MW3 <06 08 <05 <05 <60 <br /> MW4 <06 <05 <06 <06 <60 <br /> MW5 7,600 730 230 2,800 46,000 <br /> MW8 <06 <05 <0 5 <05 <50 <br /> Primary MCLS 1 O 100 680 1,760 NA <br /> NOTES <br /> TPHG = Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8016, 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 /> 3 — When compared to the gasoline standard, proportion her chromatogram contains a he ro of <br /> g g p p peaks that <br /> — elute before benzene <br /> MCLS Maximum Contaminant Levels <br /> NA = Not Applicable <br /> groundzelknowles hamlgwlab doc <br />