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.~ <br />10) In response to your question of whether certain inactive <br />wells, specifically D-l, D-2, D-3, E-2 and F-1, should be <br />abandoned, my thoughts are as follows: The D seam wells <br />may be abandoned, as the D seam was never mined and lies <br />below the E seam which was mined. The operator has <br />demonstrated negligible impact to the D seam, and as <br />there is no indication that the D seam is an artesian <br />aquifer, no additional impacts are expected. E-2 may be <br />abandoned if monitoring continues in well E ?'~ It would <br />be to the operator's advantage to monitor water levels in <br />at least one well or piezometer in each of the <br />potentially affected aquifers until bond release time, or <br />at least to have them available for monitoring at final <br />bond release time. Therefore, it would not be a good <br />idea to abandon well F-1 at this time, as this appears to <br />be the only well completed in the F seam which lies only <br />about 25 feet above the E seam. Also, at least one <br />alluvial well should be maintained in the permit area. <br />If you or the operator have any questions, please let me know. <br />BLP <br />