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TABLE 2 <br /> Laboratory Analysis of Water Samples <br /> Knowles Property - Stockton, CA <br /> Page 3 of 3 <br /> (in ppb) <br /> SAMPLE DATE WELL ID B T E X TPHG <br /> 12/15/92 MW7 <0 5 09 <0 5 07 <50 <br /> CONT <br /> MWS <0 5 <0 5 <0 5 <0 5 <50 <br /> 03/12/93 MW1 190 24 40 32 2,400 <br /> MW2 <0 5 23 <0 5 <05 1,100* <br /> MW3 DRY WELL <br /> MW4 <0 5 <05 <05 <05 430* <br /> MW5 1,600 800 280 1,400 25,000 <br /> MW6 <0 5 <05 <05 <05 <50 <br /> MW7 <0 5 <0 5 <05 <0 5 <50 <br /> MWS <0 5 <0 5 <05 <0 5 <50 <br /> 06/30/93 M W 1 820 <0 50 110 13 2,600 <br /> MW2 <0 50 <0 50 <0 50 <0 50 320 <br /> MW3 DRY WELL <br /> MW4 <0 50 <0 50 <0 50 <0 50 <50 <br /> MW5 7,500 4,600 750 3,600 35,000 <br /> MW6 <0 50 <0 50 <0 50 <0 50 <50 <br /> MW7 <0 50 <0 50 <0 50 <0 50 <50 <br /> MW8 <0 50 053 <0 50 064 <50 <br /> NOTES <br /> ppb = parts per billion = ug/I = 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 8015 <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 <br /> that elute before benzene <br /> 90-93TABL LAB <br />