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Protection of water quality will also be maintained at the present variable limits through the <br />• use of the reclamation procedures listed above. Groundwater will not be affected as the <br />supplies are minimal. Surface water will not be significantly impacted in the mine area. An <br />ongoing monitoring program is maintained by the Colowyo Coal Company to verify the <br />conclusions in the permit application. Sampling stations are maintained and samples <br />collected in accordance with the water monitoring plan approved by the Division. Refer to <br />the annual reclamation reports for results of the sampling program. <br />Flow volumes in the Goodspring Creek Alluvial Valley Floor may be impacted by the <br />Colowyo Mine through exercise of water rights. However, the impact is expected to be <br />minimal as the water rights used are owned by the Colowyo Coal Company and are not an <br />integral part of any ranching or farming operation. The Colowyo Augmentation Plan will <br />mitigate the effects on any other water rights and will provide for flows downstream of the <br />affected area. Quality of water in Good Spring Creek will not be affected by the exercise of <br />the water rights. <br />As discussed under Hydrologic Balance-Permit Area, changes in flow volumes caused by <br />mining and reclamation operations will be less than the accuracy range of present day flow <br />measuring equipment. <br />In summary, the Colowyo Mine will not significantly affect the hydrologic balance or water <br />quality of the general area or the permit area and the affect to the hydrologic balance within <br />the permit area will be insignificant. Temporary increases in TDS and associated common <br />ions are expected to affect quality in backfilled spoils within the permit area. Refer to the <br />• Annual Reports for additional information regarding hydrologic monitoring. <br />Protection of Public Parks and Historical Places <br />No public parks are located within the permit or adjacent areas; therefore, no public parks <br />will be affected by the proposed mining operations. Likewise, the proposed mining <br />operations will not effect any places included on or eligible for listing in the National <br />Register of Historical Places. <br /> <br />2.05-75 Revision Date: 6/18/02 <br />Revision No.: MR-57 <br />