2023-10-03_REVISION - M1977344 ‎(12)‎

• Permit No: M1977344
• IBM Index Class Name: Revision
• Doc Date: 10/3/2023
• Doc Name Note: 1.0 Introduction and TOC
• Doc Name: Request For Amendment To Permit
• From: Holcim ‎(US)‎ Inc.
• To: DRMS
• Type & Sequence: AM2
• Email Name: TC1
• Email Name: MAC
• Media Type: D
• Archive: No

Bear Creek Quarry (M-1977-344) Permit Amendment
ii

Table of Contents
1.0 Introduction ............................................................................................................ 6
1.1 Site Background .......................................................................................................... 6
1.2 General Project Description ......................................................................................... 6
1.3 Applicant Background .................................................................................................. 7
1.4 Application Organization .............................................................................................. 7
2.0 Regular (112) Operation Reclamation Permit Application Exhibits .................... 9
2.1 Exhibit A: Legal Description of Permit Boundary and Affected Area Boundary (Rule
6.4.1) ........................................................................................................................... 9
2.1.1 Mine Entrance Coordinates ..................................................................................12
2.2 Exhibit B: Index Map (Rule 6.4.2) ................................................................................13
2.3 Exhibit C: Pre-Mining and Mining Plan Maps of the Affected Lands (Rule 6.4.3) .........15
2.4 Exhibit D: Mining Plan (Rule 6.4.4) .............................................................................41
2.4.1 Surface Description..............................................................................................41
2.4.2 Geologic Description ............................................................................................43
2.4.3 Mine Progression .................................................................................................44
2.4.4 Mine Infrastructure Development .........................................................................46
2.4.5 Mine Development ...............................................................................................46
2.4.6 Blasting Operations..............................................................................................48
2.4.7 Existing Structures ...............................................................................................48
2.4.8 Water Diversions or Impoundments .....................................................................48
2.5 Exhibit E: Reclamation Plan (Rule 6.4.5) ....................................................................58
2.5.1 Reclamation of Material Extraction Areas ............................................................58
2.5.2 Reclamation of Mine Infrastructure ......................................................................59
2.6 Exhibit F: Reclamation Plan Map (Rule 6.4.6) .............................................................61
2.7 Exhibit G: Water Information (Rule 6.4.7) ....................................................................63
2.7.1 Existing Conditions ..............................................................................................63
2.7.2 U.S. Army Corp of Engineers ...............................................................................63
2.7.3 Site Investigations and Characterization ..............................................................65
2.7.4 Potential Mining Impacts to Water Quality and Quantity .......................................66
2.7.5 Mine Water Source and Uses ..............................................................................68
2.8 Exhibit H: Wildlife Information (Rule 6.4.8) ..................................................................69
2.8.1 Gray wolf .............................................................................................................69
2.8.2 Eastern Black Rail ...............................................................................................70
2.8.3 Greenback Cutthroat Trout ..................................................................................70