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Alaska Department of Natural Resources
Division of Mining, Land and Water

Pebble Project

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Project Description

The Pebble Project is a copper-gold-molybdenum porphyry deposit in the advanced exploration stage of development. The project is located on state land in the Bristol Bay Region of southwest Alaska, approximately 17 miles northwest of the community of Iliamna.

The Project consists of two contiguous deposits. Pebble West is a near surface resource of approximately 4.1 billion metric tons. Pebble East is significantly deeper than Pebble West and contains an estimated resource at 3.4 billion metric tons.

Advanced exploration, concurrent reclamation, care and maintenance, and field sampling and monitoring activities are on-going.

News

None at this time.

Financial Assurance

None at this time.

Permits and Approvals

Annual Reports and Meetings

No annual meetings at this time.

Pebble Limited Partnership (PLP) Annual Reclamation Reports

Technical Reports

ADF&G Technical Report No. 22-09: Aquatic Biomonitoring at the Pebble Prospect, 2010-2013 PDF

Bristol Bay Watershed Assessment EPA 404(c) Action

April 29, 2014

State of Alaska Attorney General’s Office response to EPA on CWA 404(c) review:

Letter to EPA PDF

February 28, 2014

EPA press release and other information on Clean Water Act 404(c) action:

https://www.epa.gov/bristolbay

EPA letter to State of Alaska and U.S. Army Corps of Engineers initiating CWA 404 (c) action:

Bristol Bay 15 day letter PDF

January 21, 2014

EPA Final Report "An Assessment of Potential Mining Impacts on Salmon Ecosystems of Bristol Bay.":

https://cfpub.epa.gov/ncea/bristolbay/recordisplay.cfm?deid=253500

June 28, 2013

State of Alaska Comments on EPA's Second External Review Draft of Bristol Bay Assessment:

June 28, 2013 Comment Letter DNR Com. Sullivan and Alaska AG Geraghty to US EPA PDF

June 6, 2013

The comment period on the revised draft assessment expired June 30, 2013.

April 26, 2013

The Revised Draft Bristol Bay Watershed Assessment is now available for download or viewing from the EPA Bristol Bay website. This Executive Summary presents an overview of the revised document.

The comment period on the revised draft assessment expired May 31, 2013.

On May 18, 2012, The U.S. Environmental Protection Agency (EPA) released for public comment a draft study of the Bristol Bay watershed and its natural resources. The public comment period for the Draft Bristol Bay Watershed Assessment closed on July 23, 2012. Information on the study is available from EPA at http://yosemite.epa.gov/R10/ECOCOMM.NSF/bristol+bay/bristolbay

The State of Alaska submitted comments from the Office of the Attorney General and from the Department of Natural Resources (DNR), Office of Project Management and Permitting (OPMP). DNR's comment letter attached page-specific technical comments compiled from multiple agencies. Links to the comments and supporting documents are listed below:

DNR Office of Permitting and Project Management

Department of Law Office of the Attorney General

September 21, 2010 letter from Alaska Governor Parnell to EPA Administrator Jackson PDF Bristol Bay Area Plan

EPA has also posted the comments it received on the study which are available at the following link: View all public comments submitted during the comment period (Docket EPA-HQ-ORD-2012-0276)

Inspections and Field Reports

July 29, 2021 Field Monitoring Report PDF October 21, 2019 Field Monitoring Report PDF July 27, 2018 Field Monitoring Report PDF September 15-17, 2017 Field Monitoring Report PDF July 20, 2017 Field Monitoring Report PDF July 26, 2016 Field Monitoring Report PDF July 22, 2015 Field Monitoring Report PDF June 16, 2014 Field Monitoring Report PDF October 01, 2013 Field Monitoring Report PDF September 09, 2013 Field Monitoring Report PDF August 06, 2013 Field Monitoring Report PDF July 23, 2013 Field Monitoring Report PDF October 17, 2012 Field Monitoring Report PDF October 5, 2012 Field Monitoring Report PDF September 11, 2012 Field Monitoring Report PDF August 21, 2012 Field Monitoring Report PDF July 17, 2012 Field Monitoring Report PDF June 19, 2012 Field Monitoring Report PDF October 20, 2011 Field Monitoring Report PDF September 14, 2011 Field Monitoring Report PDF August 25, 2011 Field Monitoring Report PDF July 12, 2011 Field Monitoring Report PDF June 22, 2011 Field Monitoring Report PDF May 24, 2011 Field Monitoring Report PDF October 13, 2010 Field Monitoring Report PDF September 21, 2010 Field Monitoring Report PDF August 31, 2010 Field Monitoring Report PDF August 3, 2010 Field Monitoring Report PDF July 8, 2010 Field Monitoring Report PDF July 7-8, 2010 Inspection of Additional Water Withdrawal Sites PDF June 15-16, 2010 Field Monitoring Report PDF June 15-16, 2010 Inspection of 2010 Settlement Agreement Sites PDF October 15, 2009 Field Monitoring Report PDF August 19, 2009 Field Monitoring Report PDF June 4, 2009 Field Monitoring Report PDF October 28 - 29, 2008 Field Monitoring Report PDF September 23 - 24, 2008 Field Monitoring Report PDF August 27, 2008 Field Monitoring Report PDF July 23, 2008 Field Monitoring Report PDF June 17 - 18, 2008 Field Inspection Report PDF May 7, 2008 Field Inspection Report PDF April 17, 2008 Field Inspection Report PDF February 28 - 29, 2008 Field Inspection Report PDF October 17, 2007 PDF October 4, 2007 PDF September 26 - 27, 2007 Pebble Project Inspection PDF September 13, 2007 Pebble Copper/Gold Exploration Project Field Report PDF September 6, 2007 Pebble Copper/Gold Exploration Project Field Report PDF August 22, 2007 Pebble Copper/Gold Exploration Project Field Report PDF August 21, 2007 Pebble Project Site Visit PDF July 26 - 27, 2007 Field Inspection of the Pebble Copper/Gold Project PDF April 5, 2007 Pebble Copper/Gold Exploration Project Field Report PDF September 19 - 20, 2006 Pebble Project Site Visit PDF June 14, 2006 Pebble Project Inspection (DNR/MLW) PDF June 14, 2006 Pebble Project Inspection (DNR/OHMP) PDF June 14, 2006 Pebble Project Inspection (DEC) PDF August 22, 2005 Pebble Project Site Visit PDF June 22, 2005 Pebble Project - Field Inspection Report PDF September 20, 2004 Pebble Project - Field Inspection Report PDF May 19, 2004 Pebble Project - Field Inspection Report PDF August 26, 2003 Pebble Project - Field Inspection Report PDF

Pebble Limited Partnership (PLP) Data Releases

Posted April 2011 as part of a commitment to shared information, the Pebble Partnership has provided this environmental and socio-economic baseline data to state and federal agencies, project stakeholders, and the general public prior to project permitting.

The information contained in these reports is preliminary and is not to be cited or quoted.

Pre Permitting Environmental/Socio-Economic Data Report Series

Report A - Meteorology

Report B - Surface Water Hydrology

Report C - Surficial Geology

Report D - Groundwater Hydrology

Report E - Trace Elements - Soils and Sediments

Report F - Surface Water Quality

Report G - Naturally Occurring Constituents

Report H - Macroinvertebrates and Periphyton

Report I - Marine Habitats

Report J - Nearshore Fish and Benthic Invertebrates

Report K - Noise

Report L - Iliamna Lake Studies

Report M - Visual Resources

Report N - Terrestrial Wildlife and Habitats

Draft Environmental Baseline Studies

Technical Working Groups

The Pebble Project Technical Working Groups (TWGs) were created to facilitate pre-application state and federal agency discussions with the project proponent, Pebble Limited Partnership (PLP). TWG meetings began in mid-2007 and covered a wide array of topics as seen in the meeting minutes below. This voluntary process regarding environmental and project design studies was suspended by PLP in January 2010; communications between the PLP and individual agencies then continued through conventional channels and procedures.

Pebble Project Technical Working Group (TWG) Steering Committee

The Pebble Project TWG Steering Committee is composed of the primary leads from participating state and federal agencies. The TWG Steering Committee, and Pebble Limited Partnership (PLP) as applicant, will convene on at least a quarterly basis initially, and then as frequently as appropriate. It's role will be to guide the scope of the Technical Working Groups (TWGs) and coordinate TWG assignments to prevent overlap and/or study review gaps that could occur between TWGs, and to address issues or concerns raised by TWG leaders or groups. TWGs will not function as a consensus or decision-making authority.

Revised TWG Guidelines

The minutes below reflect discussion of suggestions and concerns raised by individuals during TWG meetings. Discussion does not reflect any decision-making or consensus from the group (with the exception of choosing a lead).

October 27, 2009 Meeting Minutes PDF May 19, 2009 Meeting Minutes PDF March 26, 2009 Meeting Minutes PDF January 16, 2009 Meeting Minutes PDF November 14, 2008 Meeting Minutes PDF June 10, 2008 Meeting Minutes PDF January 30, 2008 Meeting Minutes PDF August 23, 2007 Meeting Minutes PDF July 19, 2007 Meeting Minutes PDF

Marine Bird and Mammal TWG Meeting Minutes

November 21, 2008 Meeting Minutes PDF

Combined Water Quality and Hydrology TWG Meeting Minutes

November 18, 2008 Meeting Minutes PDF

Hydrology TWG Meeting Minutes

January 10, 2008 Meeting Minutes PDF

Surface and Groundwater Quality TWG Meeting Minutes

January 8, 2008 Meeting Minutes PDF

Aquatic Organisms TWG Meeting Minutes

January 15, 2008 Meeting Minutes PDF

Trace Element TWG Meeting Minutes

November 20, 2008 Meeting Minutes PDF

Water Right Applications

Complete Water Right Applications submitted by Northern Dynasty Mines Inc.

2010 Unpermitted Water Withdrawals Settlement

PLP Letter to DNR PDF (November 6, 2009) DNR Letter to PLP PDF (January 14, 2010) ADF&G Letter to PLP PDF (January 15, 2010) PLP Letter to ADF&G PDF (January 22, 2010) Settlement Agreement PDF (February 11, 2010) Media Release re: Settlement Agreement PDF (February 12, 2010) Media Release re: Reinstatement of Permits PDF (April 23, 2010) PLP Water Withdrawal Plan PDF (April 23, 2010) DNR Water Withdrawal Plan Approval PDF (April 23, 2010) ADF&G Water Withdrawal Plan Approval PDF (April 23, 2010) Inspection Report - Unauthorized Water Withdrawal Sites PDF (June 15-16 2010) Inspection Report - Additional Unauthorized Water Withdrawal Sites PDF (July 7-8, 2010) PLP Water Withdrawal Plan Rev 1 PDF (July 13, 2010) DNR Letter to PLP PDF (July 15, 2011)

Other Supporting Documents

2012 Pebble Project Environmental Baseline Studies (ARLIS link) PDF Water Withdrawal Plan PDF

Archive

Archive of older financial assurance, permits, approvals, annual reports, and other supporting documents

Contact

Kate Harper
Large Mine Coordinator
Alaska Department of Natural Resources
Office of Project Management and Permitting
Phone: (907) 465-6849
Fax: (907) 465-3886
Email

Mail to:
550 W. 7th Ave. Suite 1430
Anchorage, AK 99501

Visit at:
550 W. 7th Ave. Suite 1430
Anchorage, AK 99501

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