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Sealing of Exploration and Mine Holes <br />• The measures to be used to plug, case, or manage exploration holes, other than boreholes, <br />wells, and other openings within the permit area will include filling the hole or opening with <br />cuttings or inert material to the surface, cementing those holes which flow or might flow as <br />a result of any possible artisan conditions and casing or cementing any holes which penetrate <br />an aquifer with significant groundwater quality and quantity. <br />Those holes which remain open for use as a water supply well or for use as a groundwater <br />monitoring well will be completed with casing or piezometers at a sufficient height above the <br />land surface to prevent drainage of surface water or entrance of foreign material into the <br />well, and will be fitted with caps to prevent the introduction of objects other than monitoring <br />and sampling equipment. When the groundwater monitoring wells are no longer needed or <br />required for any purpose, each well will be eliminated in accordance with the methods <br />descnbed above. <br />All exploration drill holes and groundwater monitoring wells have been reclaimed. Exhtbit 9 <br />contains the abandonment reports submitted to the Division which contain reclamation <br />information for 1989 and 1993. The two drill hole maps showing hole locations are also <br />included in the Exhibit. No abandonment reports for the exploration holes reclaimed in <br />1980 and 1981 could be found. <br />Water and Air Quality Control Techniques <br />• Steps to be taken to comply with the Clean Water Act and other applicable water quality <br />laws and regulations and health and safety standards include a comprehensive drainage and <br />sediment control plan. With respect to compliance with the Clean Water Act, Kaiser has <br />been issued a discharge permit from the Colorado State Department of Health under the <br />National Po]lutant Discharge Elimination System (NPDES). Compliance with this permit <br />will serve to effect compliance with this permit will serve to effect compliance with the Clean <br />Water Act and the Colorado Water Quality Control Act. A copy of this submittal permit <br />(No. CO-G-850010) is provided in Exhibit 8, NPDES Permit. <br />The Colorado Coal Mine No. 1 has likewise received an Air Quality Emission Permit from <br />the Colorado Department of Health, Air Quality Division. Since operations have ceased and <br />the mine has been reclaimed, the air emissions permit has been relinquished. <br />Annual Reclamation Report <br />Within 60 days following the end of the calendar year, Kaiser will submit an annual <br />reclamation report. This report will include all reclamation activities conducted during that <br />year. This will include any bacldill, grading, topsoiling, seeding and/or mulching activities <br />conducted at the site. Rill and gully repair activities will be included in this report. A map <br />of areas reclaimed will also be included. <br />2.05.5 Postmining Land Uses <br />The implementation of the detailed reclamation plan as contained in Section 2.05.4 will <br />• restore the disturbed land to the premising use of rangeland. This will be specifically <br />accomplished by the regrading of the spoi] to create approximate original contour, <br />restoration of the subsoil, topsoil and mulch, followed by seeding of the appropriate seed <br />2.05-6 Revised Augusta 1993 <br />