2009-09-29_PERMIT FILE - C1994082

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 9/29/2009
• Doc Name: Drainage and Sediment Control Plan
• Section_Exhibit Name: Tab 13 Attachment 13-12
• Media Type: D
• Archive: No

February 1999
Yoast Mine * 13-12 Drainage and Sediment Control Plan oiii
LIST OF APPENDICES

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Appendix No. Description
13-12.A Turf Reinforcement Mat Design and Installation
13-12.1 Sediment Pond Design SEDCAD4 Results
13-12.2 Haul Road Ditch Design SEDCAD4 Results
13-12.3 Postmining Channel Design SEDCAD4 Results
13-12.4 Small Area Exemption Design
13-12.5 Stockpond Emergency Spillway Design SEDCAD Results
LIST OF EXHIBITS
Exhibit No. Description
13-12.1 Yoast Mine Watershed
13-12.1A Permanent Channel and Pond Watersheds
13-12.2 Proposed Pond 012 Design
13-12.3 Proposed Pond 013 Design
13-12.4 Proposed Pond 014 Design
13-12.5 Stock Pond ST-1 Proposed Design
13-12.6 Stock Pond ST-2 Proposed Design
13-12.7 Pond 012A Design
13-12.8 Stock Pond ST-1 As-Built
Montgomery LVatson Mining Group * 165 S. Union Boula? Suite 460 * Lakewood, Colorado 80228 * [phone]
TR-44 Revised 08/09