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TABLE 3 <br /> LABORATORY ANALYSES - GROUNDWATER <br /> Knowles Property - Stockton, CA <br /> Page 7 of 7 <br /> (in parts per billion) <br /> BATE>'� WELL ID' BENZENE TOLUENE ETHYLBENZENE XYLENES TPHG <br /> 08/10/00 MW1 13 <0 6 33 14 610 <br /> MW2 <05 <06 <05 <05 <50 <br /> MW3 <05 08 <05 <05 <50 <br /> MW4 <05 <05 <05 <05 <50 <br /> MW5 7,600 730 230 2 800 46,000 <br /> MW8 <05 <05 <06 <05 <60 <br /> 11/14/00 MW1 27 <05 71 25 260 <br /> MW4 <06 <06 <05 <05 <50 <br /> MW5 7,400 7,200 1,600 8 800 100,000 <br /> MW8 <05 <05 <05 <05 <50 <br /> 02/09/01 MW1 1 5 1 6 3 2 3 3 70 <br /> MW3 <0 6 <0 5 <0 5 <0 5 <50 <br /> MW4 <06 <05 <05 <0 5 <50 <br /> MW5 4,800 1,500 540 3,600 33 000 <br /> MW8 <06 <05 <05 <0 5 <60 <br /> Primary MCLS 10 160 780 1 750 NA <br /> NOTES <br /> TPHG = Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8015, Benzene, Toluene, <br /> Ethylbenzena, Xylenes analyzed by EPA Method 8020 <br /> < = Not Detected at or Above Method Detection Limits <br /> ' = Sample chromatogram does not match gasoline fingerprint <br /> 3 = <br /> s Sample chromatogram contains an unidentified peak which does not match gasoline fingerprint <br /> — When compared to the <br /> p gasoline standard, chromatogram contains a higher proportion of peaks that <br /> elute before benzene <br /> MCLs — Maximum Contaminant Levels <br /> NA = Not Applicable <br /> Broundzelknowles hamlgwlab doe <br />