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Table 1. Water-Level Elevations <br /> ARCO Facility 2093, Tracy, California <br /> { <br /> Top-of-casing Depth-to- Floating Water-level Change since <br /> 1 Well number elevation water product elevation last measurement <br /> and date (feet) (a) (feet) thickness, (feet) (feet) (feet) <br /> 9124/91 s 11.57 -- 37.46 -0.25 <br /> 1123192 11.16 -- 37.87 0.41 <br /> 1 4120/92 11.12 -- 37.91 0.04 <br /> 7/8/92 11.31 -- 37.72 -0.19 i <br /> 10/7/92 11.45 -- 37.58 -0.14 <br /> 1/18/93 10.45 -- 38.58 1.00 <br /> 4/14193 10.87 -- 38.16 -0.42 <br /> 8/31/93 (c) Unknown 10.98 -- 38.05 -0.11 <br /> 10/27/93 (e) Unknown 10.98 38.05 0.00 <br /> 2/18/94(c) Unknown 10.3I -- 38.72 0.67 <br /> 5/20/94(c) 10.71 -- 38.32 -0.40 <br /> 1017194 11.00 -- 38.03 -0.29 <br /> 12/16/94 10.61 -- 38.42 0.39 <br /> ATR-5 <br /> 3/10/89 48.73 <br /> 6129189 (d) 10.52 -- 38.21 -- <br /> 9/18/89 (d) 10.98 37.75 -0.46 <br /> 12/27/89 (d) 10.76 -- 37.97 0.22 <br /> 4/18190 (d) 10.90 -- 37.83 -0.14 <br /> 10/16/90 <br /> 10/19/90 ; 11.10 -- 37.63 -0.20 <br /> 1110/91 10.84 37.89 0.26 <br /> 4110191 10.67 -- 38.06 0.17 <br /> 7/10/91 11.02 -- 37.71 -0.35 <br /> 9/24/91 11.29 -- 37.44 -0.27 <br /> 1/23/92 10.78 -- 37.95 •0.51 <br />{ 4/20/92 10.70 -- 38.03 0.08 <br /> 7/8/92 10.97 -- 37.76 -0.27 <br /> 1 10/7/92 11.11 -- 37.62 -0.14 <br /> 1/18/93 9.94 -- 38.79 1.17 <br /> 4/14/93 10.47 -- 38.26 -0.53 <br /> 8/31/93 ,M 11.16 -- 37.57 -0.69 <br /> 10/27/93 i 11.11 -- 37.62 0.05 <br />�. 2/18/94 10.73 -- 38.00 0.38 <br /> 5/20/94 �h 10.82 -- 37.91 -0.09 <br /> a 10/7/94 �; 11.14 -- 37.59 -0.32 <br /> 12/16J94 10.77 -- 37.96 0.37 <br />{ ATR-6 <br /> 3/10/89 49.35 <br /> 6/21/89(d) 11.54 -- 37.81 -- <br /> 9/18/89(d) 11.60 37.75 -0.06 <br /> 12/27/89(d) 11.57 37.78 0.03 <br /> i 4/18/90(d) 11.68 -- 37.67 -0.11 <br /> 10/16/90 7 <br /> 10/19/90 11.80 -- 37.55 -0.12 <br /> 1/10/91 11.64 -- 37.71 6.16 <br /> 4110191 11.52 -- 37.83 0.12 <br /> 7110/91 11.76 37.59 -0.24 <br /> 9/24191 11.95 -- 37.40 -0.19 <br /> 1/23192 11.66 -- 37.69 0.29 <br /> 4/20/92 11.56 -- 37.79 0.10 fi <br />