Laserfiche WebLink
82.05 APPLICATION FOR PERMIT FOR SURFACE OR DNDERGROUND MINING ACT);ViTIES -- <br />MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. <br />• <br />2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (Cont'd.) <br />Maps 8A-5 and 8A-7 in Volume 8A). The diver- <br />sion ditch has been designed [o contain and <br />route away fcom the mine area a Probable Maxi- <br />mum Thunderstorm (defined as 7-I/2 inches in <br />one hour). (See Part 2.05.5). After cessa- <br />tion of mining and during [he Final Abandon- <br />ment Phase, Che diversion ditches will be re- <br />moved. For detailed discussions of the diver- <br />sion ditches, see 2.05.3(3)(6) Operation Plan: <br />Existing Structures. Second, all water from <br />disturbed lands within the permit boundary is <br />routed through the Stale and Federally ap- <br />proved sedimentation Facilities (i.e. ponds <br />built to Office of Surface Mining specifica- <br />tions). Any discharge from the lowermost sed- <br />imentation pond (No. 4) and all other NPDES <br />discharge points must meet all S[aCe and Fed- <br />eral quality standards as set forth in Rule <br />4.05.2. For discussion of Sedimentation Ponds <br />• and Si[e Drainage Plan, see Sections 2.05.6(3) <br />and 2.05.6(3)(6) and the Hydro-G co, ;nc. hy- <br />drology report of [he Orchard Valley West Mine <br />area in the Hydrology Appendix, Volume 4. <br />(ii) This subject of potential impacts to water <br />rights received substantial attention during <br />the leasing process and consequently, the Reg- <br />ulatory Authorities, in conjunction with local <br />water users, the folorado Open Space Council, <br />and CIJ;, incorporated specific stipulations in <br />Federal Lease C-37210 to protect water users. <br />;n compliance with these stipulations, CW; <br />initiated a detailed and comprehensive hydrol- <br />ogy program comprised of Eive general parts: <br />1) Complete description of the individual hy- <br />drologic basins, including: <br />a) East Roatcap drainage, <br />b) Steven's Gulch drainage, <br />c) Terror Creek drainage, <br />d) Coal Gulch drainage, <br />e) ldest and Main Roatcap drainages. <br />• Revised 08/01/84 <br />Revised 1.0/12/86 <br />Revised l0/Ol/87 <br />95 <br />