Idaho-Maryland Mine Planning Commission Staff Report

The Nevada County Planning Department prepared the Staff Report and Additional Attachments for the Idaho-Maryland Mine - Rise Grass Valley Project (proposed project). The below Staff Report has been prepared for consideration by the Planning Commission at their Special Meeting on Wednesday, May 10, 2023, from 9 am-5 pm. The Public Hearing may be continued to May 11, 2023, beginning at 9 am. Members of the public who wish to address the Planning Commission should attend the May 10th meeting as there may not be a second day of hearings on May 11th.

There will be opportunities to provide comments throughout the process. To be notified of these opportunities and when new material becomes available, please subscribe here.

  1. Staff Report & AttAchments
  2. Attachments 22 & 23 & 25
  3. How to Participate
  4. Watch Public Hearing 
  5. Notice of Public Hearing

Staff Report and Attachments (attachments 22 & 23 & 25 see next tab)

  1. Idaho Maryland Mine Staff Report Memo 05-05-2023
  2. Idaho-Maryland Mine Public Comments Received 4-25-23 through 5-5-23
  3. Applicant Comment Letter to Planning Commission 05-05-2023
  4. California Department of Parks and Recreation Comment Letter 05-08-2023
  5. Nevada Irrigation District Comment Letter 05-08-2023
  6. Idaho Maryland Mine Public Comments Received 05-09-2023
  7. 0 - Idaho-Maryland Mine Project Planning Commission Staff Report
  8. 1 - Recommended Conditions of Approval and Mitigation, Monitoring and Reporting Program
  9. 1.A - Exhbit A - Mitigation Monitoring and Reporting Program
  10. 1.B - Exhibit B - Proposed Underground Mining Area
  11. 2 - CEQA Findings of Fact and Statement of Overriding Considerations
  12. 3 - Erratum to the Idaho-Maryland Mine Final Environmental Impact Report
  13. 4 - Idaho-Maryland Mine Project - Supplement to the IMM FEIR
  14. 5 - Idaho-Maryland Mine Project - Staff Report Master Resposnes to Public Comments
  15. 6 - Responses to Comments - Traffic, Air Quality, Green House Gas and Biological
  16. 7 - Groundwater Monitoring Plan - February 2021
  17. 8 - Updated Well Mitigation Plan - May 11, 2022
  18. 9 - Domestic Well Monitoring Program - July 28, 2022
  19. 10 - Parcels Noticed_Idaho-Maryland Mine - Rise Grass Valley
  20. 11 - Applicant's Variance Justification
  21. 12.A Project Overview - Mineral Rights Boundary & Surface Properties
  22. 12.B - Project Overview - Project Elements and Current Conditions
  23. 12.C - Project Overview - Existing Underground Mine Workings
  24. 12.D - Project Overview - Isometric Underground Mine Workings
  25. 12.E - Project Overview - Proposed Underground Mining Area
  26. 13 - East Bennett Road Domestic Waterline Overview
  27. 14.A - Brunswick Site Plan - Infrastructure Details
  28. 14.B - Brunswick Site Plan - Biological Summary
  29. 14.C - Brunswick Site Plan - Section Views
  30. 14.D - Brunswick Site Plan - Section Views - Showing Alternate #2
  31. 14.E - Brunswick Site Plan - Preliminary Grading Plan
  32. 14.F - Brunswick Site Plan - Existing Easements
  33. 14.G - Brunswick Site Plan - Photometric Plans
  34. 14.H - Brunswick Site Plan - Preliminary Landscape Plan
  35. 15 - Brunswick Industrial Site - Building Elevations, Floorplans
  36. 15.A - Building Elevation Architectural Color Renderings
  37. 16.A - Centennial Industrial Site - Infrastructure Details
  38. 16.B - Centennial Industrial Site - Biological Summary
  39. 16.C - Centennial Industrial Site - Preliminary Grading Plan
  40. 16.D - Centennial Industrial Site Existing Easements
  41. 17 - Proposed Boundary Line Adjustment
  42. 18 - Proposed Final Map Amendment - Bet Acres
  43. 19 - MIS22-0019 - IMM Draft Development Agreement PC
  44. 20 - Draft Financial Assurance Cost Estimate
  45. 21 - Idaho-Maryland Mine Reclamation Plan, November 2020 (Updated September 2022)
  46. 24 - Public Comments Recieved Since Close of Draft EIR Public Comment Period