2017-07-27_REVISION - M1977493

• Permit No: M1977493
• IBM Index Class Name: Revision
• Doc Date: 7/27/2017
• Doc Name: Request for Technical Revision
• From: Climax Molybdenum
• To: DRMS
• Type & Sequence: TR26
• Email Name: ECS
• Email Name: WHE
• Media Type: D
• Archive: No

Final Compensatory Mitigation and Monitoring Plan—Version 2.0
Climax Mine Overburden Storage Facility Expansion (SPK-2013-00045)
i
TABLE OF CONTENTS
Page
1.0 INTRODUCTION/PURPOSE ....................................................................................... 1
1.1 Contact Information .............................................................................................. 3
2.0 OVERALL PROJECT DESCRIPTION .......................................................................... 3
3.0 OBJECTIVES ............................................................................................................. 4
3.1 Indirect Impacts.................................................................................................... 5
4.0 SITE SELECTION CRITERIA ...................................................................................... 6
5.0 BASELINE INFORMATION ......................................................................................... 7
5.1 Project Site - McNulty Gulch ................................................................................ 7
5.1.1 Water Sources ..................................................................................... 9
5.1.2 Soils..................................................................................................... 9
5.1.3 Vegetation Communities .................................................................... 10
5.2 Lake Irwin Mitigation Site ................................................................................... 10
5.2.1 Water Sources ................................................................................... 11
5.2.2 Soils................................................................................................... 11
5.2.3 Vegetation Communities .................................................................... 12
6.0 MITIGATION WORK PLAN ....................................................................................... 12
6.1 Construction Methods - Overview ...................................................................... 12
6.2 Grading and Earthwork ...................................................................................... 13
6.3 Planting Plan ...................................................................................................... 14
6.4 Water Sources ................................................................................................... 17
6.5 Construction Timing and Sequencing ................................................................. 17
6.6 Site Protection ................................................................................................... 19
6.7 Erosion and Sediment Controls .......................................................................... 19
7.0 DETERMINATION OF CREDITS ............................................................................... 20
8.0 SITE PROTECTION INSTRUMENT .......................................................................... 20
9.0 MAINTENANCE PLAN .............................................................................................. 20
10.0 ECOLOGICAL PERFORMANCE STANDARDS ......................................................... 21
11.0 MONITORING .......................................................................................................... 22
11.1 Fen Wetland Monitoring Plan ............................................................................. 22
11.2 Wetland Mitigation As-built Drawings ................................................................. 24
11.3 Schedule and Reporting ..................................................................................... 24
12.0 LONG-TERM MANAGEMENT PLAN ......................................................................... 24
13.0 ADAPTIVE MANAGEMENT PLAN ............................................................................ 25