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Table 4 Summary of Water Level Elevations and Gradient Slope and Bearing-Water Table Wells <br /> _ Service <br /> 1600 Durham Ferry Road <br /> Tracy,California <br /> Project No 425 2 <br /> Date Elevation of Groundwater Well Data <br /> MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 AMSL Gradient Gradient <br /> TOCI 9939 9920 9938 Avg Elev Bearing" Slope" <br /> TOC2 9937 9920 9937 9998 9904 9900 99 10 9899 (ft/ft) <br /> TOO 8349 8331 83 42 84 1 83 16 83 12 8323 83 1 <br /> 5/3/95 898-5 8974 8983 8981 NO2% 00017 <br /> 2/29/96 8875 8756 8874 8835 NO3°E 00257 <br /> 3/19/96 8859 8725 8858 88 14 N040E 00289 <br /> 4/22196 8967 8835 8965 8922 NO30E 00250 <br /> 5/18196 9137 90 18 9134 <br /> 9096 NO°E 00223 <br /> 6128196 91 13 8992 91 16 9074 N040W 00233 <br /> 7124/96 9169 9050 91 73 9131 N040W 00243 <br /> 9111196 9104 FP 9107 9106 <br /> 1/17197 8957 FP 8956 8957 <br /> 515197 9131 FP 91 38 9138 91 96 91 03 91 12 91 31 9136 N20°W 0 0024 • <br /> 8125197 91 00 91 16 91 16 9082 91 04 N220W 00026 <br /> 9119197 9023 90 13 9024 9028 90 14 8998 9002 90 16 90 15 N040W 0 002 <br /> 2/24/98 7606 FP 7606 7609 7599 7591 7601 7608 7603 NO2°W 00012 <br /> 5/29/98 7390 73 78 7382 73 9E=84 7371 7371 73 81 73 82 N290E 0-0019 <br /> 11/13/98 7345 FP 7338 1 7348 1 7340 1 7329 73576-1 7336 73 37 N390E 0 0017 <br /> TOC I =Top of Casing elevation referenced to an arbitrary plane <br /> TOC2=Top of casing elevation surveyed on 5/9/97 MW-2 was used as benchmark elevation <br /> TOO =Top of casing elevation surveyed on 12/18/97 and 10/19/98 into USGS Benchmark T-933 <br /> FP=Floating product in well, unable to collect data <br /> ** Gradient determined from MW-3, MW-4 and MW-6 from 5/5197 to current <br /> !evla�rcal?ec�rrrrrsl�rc 11/27/98 <br />