Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Bristol Bay

About EPA's 2018 decision not to withdraw proposed Clean Water Act restrictions on mining Pebble Deposit

On this page:
  • Summary
  • Public hearings
  • Public comments

Summary

In 2014, EPA issued a Clean Water Act Section 404(c) Proposed Determination that would, if finalized, restrict the discharge of dredged or fill material in the Bristol Bay watershed related to mining the Pebble copper and gold deposit. In a May 11, 2017, settlement agreement resolving outstanding lawsuits between EPA and the Pebble Limited Partnership, EPA agreed to initiate a process to propose to withdraw the Proposed Determination by July 11, 2017.

In July 2017, EPA solicited public comment on whether to withdraw the Proposed Determination, and whether the Administrator should review the withdrawal decision if such a decision is made. Comments were due on October 17, 2017 (see Public Comments below).

After hearing directly from stakeholders and the people of Alaska, EPA is suspending its process to withdraw the Proposed Determination, leaving it in place while the Agency receives more information on the potential mine’s impact on the region’s world-class fisheries and natural resources. 

EPA intends to solicit additional public comment on the impact of the Pebble Limited Partnership's December 2017 mining application on the existing Proposed Determination.

  • Federal Register notice on EPA’s decision not to withdraw Proposed Determination - February 28, 2018
  • EPA's press release (January 26, 2018)
  • Federal Register notice announcing public hearings on EPA's proposal - September 21, 2017
  • Federal Register notice on EPA's proposal to withdraw Proposed Determination - July 19, 2017
  • EPA's press release (July 11, 2017)

Public hearings

The EPA held two public hearings on its 2017 proposal to withdraw proposed Clean Water Act restrictions on mining the Pebble Deposit. Public hearings were held in Dillingham, Alaska, on October 11, 2017 and in Iliamna, Alaska, on October 12, 2017. 

Public comments

The comment period on EPA's 2017 proposal to withdraw proposed Clean Water Act restrictions on mining the Pebble Deposit closed October 17, 2017.

Public comments submitted to the docket can be viewed at the Federal eRulemaking Portal: Visit regulations.gov (docket ID: EPA-R10-OW-2017-0369).​

Bristol Bay

  • Final Determination
  • Timeline
  • Bristol Bay Assessment
  • About Bristol Bay
Contact us about Bristol Bay
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 2, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.