Kensington Gold Mine
Project Description
The Kensington Gold Mine is an underground long hole stoping and drift-and-fill operation using flotation processes to recover gold. The mine is located in southeast Alaska, in the Tongass National Forest between Berners Bay and Lynn Canal, approximately 45 air miles north of Juneau and 35 air miles south of Haines. It is situated on private and U.S. Forest Service lands within the City and Borough of Juneau and access to the mine is by air or sea. The project is operated by Coeur Alaska, Inc. (Coeur), a wholly owned subsidiary of Coeur d'Alene Mines Corporation. The major Kensington Mine facilities include the Kensington underground mine, underground paste backfill plant, surface mill, tailings treatment facility, administrative and camp facilities, generator facilities, water treatment facilities, and marine dock facility. Power is supplied by on-site diesel generators. The mine was originally permitted in 2005, and operates 24-hours a day, 365 days a year. In 2012, Kensington produced approximately 82,100 ounces of gold. As of 2012, Coeur employs approximately 306 people.
Alaska Department of Natural Resources
Kensington Gold Mine Reclamation Plan Approval J20133158
Certificate to Operate a Dam (FY2013-11-AK00308)
U.S. Department of Agriculture, Forest Service
Approval letter of the April 2013 Kensington Reclamation Plan Update
and reclamation cost estimate
Support Document:
- Appendix A Reclamation Cost Estimate - Kensington Gold Project
- Appendix B Kensington Project Tailings Storage Facility Consolidation Testing & Modeling
- Appendix C Kensington Project Tailing Storage Facility Design Figures
- Appendix D Monitoring and Maintenance Cost Tables
- Appendix E Private Land Owner's Statement
- Appendix F List of Mining Claims associated with the Kensington Gold Project
- Appendix G Post Closure Water Quality Standard and Monitoring
Financial Assurance
- FS Surety Bond Acceptance Letter dated 24 July 2013
- Reclamation Surety Bond Summary Letter dated 28 June 2013
- FS/DNR/DEC Reclamation/Closure/Post-Closure Bonding MOU (June 2012)
- FS/DNR Reclamation Bond Cooperative Management Agreement (2005)
Response to Comments on State of Alaska Authorizations 2005
Alaska Department of Natural Resources (DNR)
- Final Finding and Decision - Cascade Point tideline lease
- Final Finding and Decision - Slate Cove tideland lease
- Finding and Decision - Jualin Mine Road public access
- Land Use Permit LAS 24488 - Jualin Mine Road
- Reclamation Plan Approval (6/3/2005)
- December 26, 2012 Approval extension to June 30, 2013
- July 24, 2012 Approval extension to Dec 31, 2012
- March 6, 2012 Approval extension to Jun 30, 2012
- June 23, 2011 Approval extension to Dec 31, 2011
- Final Water Rights Authorizations
- Temporary Water Use Permit TWUP J2012-01 (effective 3/1/2012)
- Final ACMP consistency determinations
Alaska Department of Environmental Conservation (DEC)
- DEC Waste Management Permit 2013DB0002
- APDES Permit No. AK0050571 (2011)
-
DEC 401 Certification - Cascade Pt. Marine Terminal
(2005)
USACE 404 Permit POA-1997-245-2
- DEC 401 Certificate of Reasonable Assurance extension - Lynn Canal (2010)
USACE 404 Permit POA-1990-592-M6
Note: In this action DEC separated the 401 Cert from the DEC Waste Mgmt Permit (WMP) and also issued an administrative extension of the WMP
- Fish Habitat Permit FH05-I-0047 - Johnson Creek Bridge #1 (5/6/2005)
- Fish Habitat Permit FH05-I-0048 - Johnson Creek Bridge #2 (5/6/2005)
- Fish Habitat Permit FH05-I-0049 - Johnson Creek Infiltration Gallery (5/6/2005)
- Fish Habitat Permit FH05-I-0050 - Lower Slate Lakes Tailings (5/6/2005)
Amendment B (8/28/2009)
- Public Notice for POA-1990-592-M6, Lynn Canal (2009)
- USACOE 404 Permit POA-1990-592-M, Lynn Canal (2005)
2011 APDES Permit Public Notice Archive
- February 13, 2014
- September 17, 2013 USDA
- August 21, 2013 USDA
- July 16, 2013 USDA
- July 11, 2013
- June 25, 2013 and July 16, 2013 DNR
- June 18, 2013
- June 11, 2013 DNR
- May 30 2013 USDA
Archive of prior Inspection Reports
Kensington Gold Mine Annual Meeting Agenda
2013 Annual Reports
Kensington Gold Project 2013 Annual Report
Attachments
- Kensington Marine Mammal Report – 2013 Transportation Action Strategy, May 2013, Coeur Alaska, Juneau, AK
- Terrestrial Wildlife Monitoring Report
- Mountain Goat Population Monitoring near the Kensington Mine, Alaska – March, 2013, ADFG
- Re-vegetation Test Plot Monitoring Data
Volume 1: Aquatic Studies at Kensington Mine, 2013 [ADFG Technical Report No. 14-01]
Kensington Gold Mine Tailings Treatment Facility Studies, 2013[ADFG Technical Report No. 14-03]
Archive of prior Annual Meetings and Reports
For More Information Contact
Juneau, AK 99801
Fax: (907) 586-2954
