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TABLE I <br /> GROUNDWATER ANALYTICAL RESULTS AND MONITORING DATA <br /> Southland Site No. 20304 <br /> 455 Grant Line Road, Tracy, California <br /> ID.E]ev, 17th Benzene Toluene Xylenes <br /> ,<: Gaspline <br /> _;Diesel.. benzene <br /> Y <br /> rm <br /> MW-15 07/20/88 NO NO NO NO NO 3.63 0.00 21.75 <br /> 03/21/89 NO NO ND ND NO 2.99 0.00 22.39 <br /> 06/10/91 NO NO ND NO NO 3.64 0.00 21.54 <br /> 09/12/91 NO NO NO NO NO 4.49 0.00 20.89 <br /> 12/30/91 NO NO ND NO NO <2 3.49 0.00 21.89 <br /> 03/31/92 NO NO ND NO NO <2.2 3.17 0.00 22.21 <br /> 06/19/92 NO NO ND NO NO <2.2 4.03 0.00 21.35 <br /> 09/21/92 NO NO ND NO NO - 4.18 0.00 21.20 <br /> 12/28/92 <10 <0.3 <0.3 <0.3 <0.5 <2.2 3.02 0.00 22.36 <br /> 1 03/11/93 1 <50 1 1 <0.3 1 <0.3 1 <0.3 1 <0.6 1 - 2.80 0.00 22.58 <br /> IL <br /> TPH = Total petroleum hydrocarbons <br /> DTW = Depth to groundwater <br /> SPT = Separate-phase hydrocarbon thickness <br /> WTE Water table elevation in feet above mean sea level <br /> Not applicable/not analyzed <br /> Monitoring well MW-7 was abandoned March 1989. <br /> Wells MW-1 through MW4, MW-S,and MW-8 were analyzed for ethylene dibromide during November 1986. The <br /> analytical results reported no detectable concentrations. <br /> Data from November 1986 to September 1992, were taken from Quarterly Fluid-Level Monitoring and Groundwater <br /> Sampling Report, October 15, 1992 (Alton Geoscience). <br /> R3767M.SCH Page 5 of 5 <br /> 7 <br /> GROUNDWATER <br /> L.-L-L-ITECHNOLOcy, INC. <br />