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i <br /> 4 + � <br /> w <br /> k ' <br /> Table l. Water-Level Elevations, <br /> 1 ARCO Station 6080, Lathrop, California <br /> Well number Top-of-casing Depth-to- Water-level Change since <br /> and sample elevation water elevation last measurement <br /> date (feet) (a) (feet) (in feet) (feet) <br /> AL-1 100.16 <br /> 4128187 8.08 92.08 - <br /> 12/21/87 10.41 89.75 -2.33 <br /> 8126188 10.36 89.80 0.05 <br /> 5123191 10.43 89.73 -0.07 <br /> 4!27192 11.31 88.85 -0.88 <br /> 8/30/94(b) 9.92 90.24 1.39 <br /> 11/4194(c) 11.32 88.84 -0.01 <br /> AL-2 9890 <br /> 4128187 6.85 92.05 - <br /> 12/21/87 9.12 89.78 -2.27 <br /> 8/26/88 8.93 89.97 0.19 <br /> I 5123191 9-28 89.62 -0.35 <br /> 4/27/92 10.08 88.82 -0.80 <br /> 8/30/94(b) 11.17 87.73 -1.09 <br /> 11/4194(c) 10.08 88.82 0.00 <br /> AL-4 98.87 <br /> 4/28/87 6.91 91.96 <br /> 12/21/87 9.I2 89.75 -2.21 <br /> 8/26188 8.81 90.06 <br /> 0.31 <br /> 5/23/91 9.34 89.53 -0.53 <br /> 4/27192 10.03 88.84 -0.69 <br /> 8130/94(b) 10.03 88.84 0.00 <br /> 11/4/94(c) 10.12 88.75 -0.09 <br /> (a) Relative elevations based on an arbitrary 100-foot benchmark. <br /> (b)Data collected this event are inconsistent with historical data. <br /> F (c)Change since last measurement calculated from April 27, 1992 data. <br />