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Table 1. Water-Level Elevations <br /> ARCO Station 2093, Tracy, California (continued) <br /> Top-of-Casing Depth to Groundwater;I Change since <br /> Well No and Elevation Water Elevation Last Measurement <br /> date (feet)(a) (feet) (feet) (feet) <br /> ATR-5 <br /> 3/10/89 4873 - - - <br /> 6/29/89 {c) 1052 3821 - <br /> 9/18/89 {c) 1098 3775 -046 <br /> 12/27/89 (c) 1076 3797 022 <br /> 4/18190 (c} 1090 3783 -014 <br /> 10/16/90 - - - <br /> 10/19/90 11 10 3763 - <br /> 1/10/91 10 84 3789 026 <br /> 4110191 1067 3806 017 <br /> 7110/91 11 02 3771 -035 <br /> 9/24/91 1129 3744 -027 <br /> 1123/92 1078 3795 051 <br /> 4/20/92 1070 3803 008 <br /> 7/8/92 1097 37 7f -027 <br /> 10/7/92 11 11 376- -014 <br /> 1/18/93 9 94 3879 1 17 <br /> is 4/14/93 10.47 38.26 -0.53 <br /> ATR-6 <br /> 3110189 4935 - - - <br /> 6/21/89 (c) 1154 3781 - <br /> 9/18/89 (c) 1160 3775 -006 <br /> 12/27/89 (c) 1157 3778 003 <br /> 4/18190 (c) 1168 3767 -011 <br /> 10/16/90 - - - <br /> 10/19/90 1180 3755 - <br /> 1/10/91 1164 3771 016 <br /> 4110/91 11 52 3783 012 <br /> 7110191 1176 3759 -024 <br /> 9/24/91 1195 3740 -019 <br /> 1123192 1166 3769 029 <br /> 4120/92 1156 3779 010 <br /> 718/92 1172 3763 -016 <br /> 10/7/92 1182 3753 -010 <br /> 1/18/93 11 04 3831 078 <br /> 4/14/93 11.42 37.93 -0.38 <br /> ATR-7 <br /> 3/10/89 4965 - - - <br /> 6/21/89 1190 3775 - <br /> 9118/89 1198 3767 -008 <br /> 12/27/89 11 94 3771 004 <br /> 4/18/90 1201 3764 -007 <br /> 10/16/90 - - - <br /> 10/19/90 1220 3745 <br /> 4/10/91 - - - <br />