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accumulations, focusing on the area right around the well -head and the lower area, and leaving the <br />steep outslope area undisturbed. In order to assure effective control of runoff and sediment from both <br />the affected and cleanup areas both during and following the cleanup effort, TC will check the existing <br />sediment controls (wattles) previously placed at the site, and replace or supplement these controls, as <br />appropriate. Any significant accumulations of coal fines will then be removed and the recovered <br />coally material will be placed in the nearby bermed basin on the 15 -Left Shaft Pad. During this <br />cleanup. reasonable care will be taken to minimize disturbance of the in-place soil resources. <br />Following removal of the coal fines, the cleanup area will be scarified and reseeded with the approved <br />rangy -eland seed mixture. Disturbed area markers will be placed at the limits of the cleanup area, and <br />the Surface Disturbance and Monitoring Map (Map 23C) will be updated to show the revised <br />disturbance limits. In order to minimize the potential for a similar incident in the future, TC will install <br />a leak -detection or overflow sensor in both of the Fish Creek mine dewatering well installations which <br />would shut-off the pump (or alert the Control -Room to shut off the pump) in the event of a problem. <br />For the Fish Creek Dewatering Borehole, TC will cut the existing road down around the borehole and <br />use the excavated material to construct a berm on the downhill side to create a catch -basin, as a <br />secondary control measure. For the Fish Creek Ventilation Borehole, TC will establish a water -bar <br />and a berm cut on the access road, allowing any discharge to drain to the first treatment cell, and will <br />establish a short connecting ditch segment from the existing ditch to the second treatment cell to <br />handle any overflow condition. <br />This submittal includes revised PAP text and maps, addressing the proposed cleanup, remediation, and <br />reclamation activities. New and revised PAP materials are identified by the attached Summary of <br />RevisionsiAdditions. We plan to proceed with this project as soon as permit approval is received and <br />consistent with the CDRMS abatement schedule for the NOV. We, therefore, appreciate your <br />consideration, cooperation, and assistance in facilitating timely review and approval of this revision <br />application. After you have opportunity to review the accompanying information, please feel free to <br />contact me with any questions or to discuss submittal materials or related matters. <br />Best regards, <br />Twentymile Coal, LLC <br />71 <br />.ferry . ��i/c <br />nMana�(erinvnmental Affairs <br />cc: Mile Bredine/TC <br />Ed Brady/TC <br />