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National King Coal contacted the local office of the Colorado Division of Wildlife <br />requesting their assistance in assessing any potential impacts the mining operation may <br />have on wildlife. A copy ofthe Division of Wildlife's response is found in Section 2.04.11 <br />and exhibit 6. <br />The general azea of the mine site is considered critical deer winter range. However, it is the <br />Division of Wildlife's opinion that, because ofthe long history ofmining in the azea, many <br />of the impacts to wildlife have already occurred. Since no additional surface disturbance is <br />anticipated, no additional impacts should occur. Reclamation of the site will enhance <br />wildlife habitat in the area. <br />Based upon the available information, the Division finds, pursuant to Rule 2.07.6(2)(n), <br />that the activities will not affect the continued existence of endangered or threatened <br />species or result in the destruction or adverse modification of their critical habitat. <br />XII. Protection of Underground Mining <br />National King Coal does not plan to undertake any surface mining activities at this site, <br />therefore, it complies with this section (4.22.4). <br />XIII. Subsidence Control <br />Information submitted indicates there aze three structures, the Huntington Irrigation Ditch, <br />the Crawford Imgation Ditch, and the Mazc Crawford residence in the permit area which <br />have the potential for mine related subsidence impacts. Impacts on these structures will be <br />monitored by quarterly visual inspections for evidence of subsidence features within the <br />permit area. Repairs, when and if necessary, will be effected by the operator for the ditch <br />and have the approval of the surface landowners. This method has proved to be effective as <br />in eazly 1990, subsidence cracks transversed the Hunnington Ditch and National King Coal <br />immediately effected repairs by placing an impermeable fabric liner down severa'. hundred <br />feet of the ditch to repair the crack and prevent further problems if additional cracks <br />appeazed. <br />The Crawford residence has water lines, a propane gas line and a sewer line that will be <br />inspected and repaired if any problems aze noted. Apre-subsidence inspection was <br />performed at the house and survey monuments installed for quarterly subsidence surveys to <br />analyze movement. To reduce the effects of subsidence, a large block of coal will remain <br />under the house. Pillazing was done within a 300 foot radius of the footprint of the house, <br />due to an error on the reading of a USGS map, and a violation was written and abated. <br />Some subsidence cracks developed about 300 feet from the house and were subsequently <br />repaired. No subsidence damage has been noted at the residence or nearby structures. The <br />water, gas and sewer lines were inspected and a crushed sewer line was repaired by the <br />mine. This damage was not subsidence related but was caused by heavy vehicular travel. <br />All structures aze currently being monitored on a quarterly basis. As mining is progressing <br />21 <br />