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Table 1. Water-Level Elevations <br /> ARCO Facility 2133,Stockton, California <br /> Top-of-casing Depth-to- Depth-to- Water-level Change since <br /> Well number elevation bottom of well water elevation last measurement <br /> and date (feet) (a) (below TOC) (feet) (in feet) (feet) <br /> 4/29/93 1390 -13 17 196 <br /> 8/5/93 1520 -1447 -1 30 <br /> 11/9/93 1571 -1498 -051 <br /> 3/21/94 1452 -1379 1 19 <br /> 6/27194 1465 -1392 -0 13 <br /> 9/29194 1588 -15 15 -123 <br /> 12/8/94 15.65 -14.92 023 <br /> MW-1 129 297 <br /> 11/9/93 1569 -1440 -- <br /> 3/21/94 15 11 -13 82 058 <br /> 6/27/44 1494 1 -1365 017 <br /> 9/29/94 1606 -1477 -1 12 <br /> 12/8194 1563 -1434 4.43 <br /> MW-2 288 2920 <br /> 11/9/93 1689 -1401 -- <br /> 3/21/94 1644 -1356 045 <br /> 6/27194 1629 -1341 0 15 <br /> 9129/94 (d) <br /> 1218/94 (e) 15.43 -1255 0.86 <br /> (a) Elevations are based on professional survey of July, 1990 <br /> (b)Well was dry, no measurement was taken <br /> (c)Well was essentially dry, water was present in the unscreened bottom cap of the well,but <br /> does not-likely represent the water table`elevattion at the time of measurement <br /> (d) Well not measured because it was covered by soil pile <br /> —(e) Well casmg was altered dunng construction of the SVE/AS system Data collected by GTI <br /> is-based on the altered well casing and is not valid Well casing will require resurveying - - - - - <br /> Note Dash indicates not measured or not calculated <br />