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Table I. Water-Level Elevations <br /> ARCO Station 2093,Tracy,California <br /> Depth to Groundwater Change since <br /> Top- Casing Casing p Y Last hleasure�nrt <br /> Elevation Water Elevation <br /> Well Na.and (feet) <br /> date (feet)(a) <br /> A'rR-1 12.49 38.09 <br /> 4123187 50.58 37.95 -0.14 <br /> 12/1287 12.63 0.09 <br /> 12.54 38.04 <br /> 3124188 , 37.75 -0.29 <br /> 6123188 1".01 -17.18 <br /> 9/'9188 30.01 38.12 1755 <br /> 2/22189 12.45 3$.i.. <br /> 1 0'09 <br /> 6(21189 - 38.21 -051 <br /> 9118189 12.88 37.70 0.20 <br /> 1247189 12.68 37'90 -0.16 <br /> 4118190 12.84 37.74 <br /> 10/16/90 13.10 37.48 - <br /> 10/19/90 37.80 0.32 <br /> 1110191 1 0.26 <br /> 122.5.5 2 38.06 <br /> 4110191 12.95 37.63 -0.43 <br /> 7110191 13.30 37.78 -035 <br /> 9124151 <br /> ATR-2 1128 37.94 <br /> 4123187 49.22 -0.12 <br /> 11.40 37.82 <br /> 1212-2187 0.05 <br /> 11.35 37.87 <br /> 3124188 11.55 37.67 -0.20 <br /> 6/23/88 37.51 -0.16 <br /> 9/19188 11.71 0.36 <br /> 11.35 37.87 <br /> 21,2/89 -0.10 <br /> ! 6/21189 11.45 37.77 <br /> 11.65 3757 "0.20 <br /> 9118189 11.50 37.72 0.15 <br /> 12/27/89 11.64 3758 -0.14 <br /> 4118190 11.81 37.41 -0.17 <br /> 10/16/90 37.41 0.00 <br /> 10/19/90 11.81 0.23 <br /> 1158 37.64 <br /> 1110191 11.35 37.87 0.23 <br /> 4110191 11.74 37.48 -0.39 <br /> 7110191 1202 37.20 -0.21! <br /> 9124191 <br /> ATR-3 11.79 38.14 <br /> 4/23187 49.93 12 38.00 -014 <br /> (12!87 t 1.93 -0.65 <br /> 128 37.35 <br /> 3124188 11.17 38.76 1.41 <br /> 6/23188 12.23 37.70 -1.06 <br /> 9/29188 11.82 38.11 0.41 <br /> 2/22189 _ - <br /> 6129/89 12.19 37.74 - <br /> ----- -- -- -- ---9118189 --- -- - - - 0.18 - <br /> ...---- -- - <br /> 1212889 12.01 3 - <br />