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the Keenesburg Mine site are significantly higher than in either the spoil <br />monitoring well (SMW-2) or in the ash monitoring wells (AMW-1 or <br />AMW-2). <br />It is CEC position that no adverse affect on the overall hydrologic balance <br />of the Keenesburg Mine site will result from a continuation of the ash <br />disposal operation, from the limited addition of mine waste rock to the B-Pit <br />ash disposal, or from the continuing reclamation operations. Ground water <br />levels in the former coal extraction areas should be expected to recover to <br />their approximate pre-mining levels following the conclusion of all CEC <br />operations (see McWhorter report, Appendix I-1 to Permit C-81-028). <br />Treatment of either the ground water or the surface waters at the <br />Keenesburg Mine site is not anticipated to be necessary. <br />Notice: In the course of applying for, and obtaining approval to dispose of <br />mine waste rock in the ash disposal pit (B-Pit) at the Keenesburg Mine site, <br />CEC submitted, and received CDPHE approval for, a Ground-Water <br />Monitoring Plan. As a requirement of the approval, CEC is providing <br />notice that the data developed under the Monitoring Plan for 2010 has been <br />placed in the operating records at the site office. This is the thirteenth such <br />notice relative to the Ground-Water Monitoring Plan. <br />• <br />AHR-2010 -33-