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water elevations in the sampled Ennis Draw wells close to the Keenesburg <br />is Mine site remain significantly higher than in either the spoil monitoring <br />well (SMW-2) or the ash monitoring wells (AMW-1 and AMW-2). <br />CEC continues to believe that no adverse affect on the overall hydrologic <br />balance of the Keenesburg Mine site will result from a continuation of the <br />ash disposal operation, from the limited addition of mine waste rock to the <br />B-Pit ash disposal, or from the ongoing reclamation operations. Ground <br />water levels in the former coal extraction areas can be expected to recover <br />to their approximate pre-mining levels following the conclusion of all CEC <br />operations (see McWhorter report, Appendix I-1 to Permit C-1981-028). <br />Treatment of either the ground or surface waters at the Ke enesburg Mine <br />site is not considered 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 the current Ground- <br />Water Monitoring Plan, as revised. As a requirement of that approval, CEC <br />is providing notice that the data developed under the Monitoring Plan for <br />• 2009 has been placed in the operating records at the site office. This is the <br />twelfth such notice, in compliance with that requirement. <br />• <br />AHR-2009 -37-