2020-10-27_PERMIT FILE - C1981035 ‎(20)‎

• Permit No: C1981035
• IBM Index Class Name: Permit File
• Doc Date: 10/27/2020
• Doc Name: Page 251-303
• Section_Exhibit Name: KII Appendix 18 Lease Modification Final EA ‎(Page 251-303)‎
• Media Type: D
• Archive: No

Biological Assessment
Federal Coal Lease Modification(COC-62920)and Federal Mine Permit(CO-0106A)Revision and Renewal
TABLE OF CONTENTS
1. Introduction...............................................................................................................................4
1.1 Background ....................................................................................................................... 4
1.2 Consultation History.......................................................................................................... 5
2. Project Description ................................................................................................................... 7
2.1 Coal Removal.................................................................................................................... 7
2.2 Coal Production, Transportation, and Combustion........................................................... 8
2.3 Road Improvements to County Road 120......................................................................... 8
2.4 Water Supply and Use....................................................................................................... 8
2.5 Reclamation....................................................................................................................... 9
2.6 Design Features................................................................................................................. 9
3. Project and Action Areas ....................................................................................................... 10
4. Environmental Baseline.......................................................................................................... 12
4.1 Habitat Conditions in the Vicinity of the King 11 Mine .................................................. 12
4.2 Air Quality and Climate .................................................................................................. 12
4.3 Water Quality .................................................................................................................. 13
4.4 Existing and Reasonably Foreseeable Developments and Risks .................................... 16
5. Species and Critical Habitat Considered.............................................................................. 17
5.1 Descriptions of Species and Critical Habitat Analyzed in Detail ................................... 21
5.1.1 Rio Grande Silvery Minnow................................................................................. 21
5.1.2 Greenback Cutthroat Trout................................................................................... 22
5.1.3 Colorado Pikeminnow and Razorback Sucker ..................................................... 26
6. Effects Analysis .......................................................................................................................27
6.1 Summary of Impacts ....................................................................................................... 27
6.1.1 Direct Air Quality Effects..................................................................................... 27
May 2017