Learn the Issues
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EPA's Bristol Bay Assessment
EPA's scientific assessment of the potential impact of large-scale mining operations on the Bristol Bay watershed ecosystem.
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Frequent questions about EPA's Bristol Bay Assessment
Frequently asked questions about EPA's Bristol Bay Assessment. This information is no longer updated but may be useful as a reference or resource.
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About Bristol Bay
About the Bristol Bay watershed in southwestern Alaska, its people and its natural resources.
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Public involvement for the Bristol Bay Assessment
Description of public involvement activities leading up to EPA's Bristol Bay Assessment Report.
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Why we studied the Bristol Bay watershed
EPA conducted a scientific assessment of the Bristol Bay watershed to understand how large-scale mining could potentially affect water quality and salmon ecosystems in the Bristol Bay watershed.
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2017 Settlement Agreement between EPA and Pebble Limited Partnership
EPA's May 11, 2017 Settlement Agreement with Pebble Limited Partnership to resolve litigation from 2014 relating to EPA's prior work in the Bristol Bay watershed in Alaska.
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About EPA's 2018 decision not to withdraw proposed Clean Water Act restrictions on mining Pebble Deposit
EPA's proposal to withdraw its proposed Clean Water Act restrictions on mining the Pebble deposit in the Bristol Bay watershed in Alaska.
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Wyckoff/Eagle Harbor Superfund site
Information about EPA's cleanup of the Wyckoff-Eagle Harbor Superfund site in Bainbridge Island, Washington.
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EPA in Oregon
Environmental Information, hot topics, and public notices about EPA in Oregon.
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Clean Air Act Permitting in Kentucky
Information on air permitting in Kentucky and EPA's oversight.
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EPA in Massachusetts
Portal for news and information about EPA's efforts in Massachusetts.
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Lead (Pb) Air Pollution
This web area will provide information on setting and implementing the outdoor air quality standards for lead.
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Health of the Salish Sea Ecosystem Report
The Health of the Salish Sea Report is a collaboration between the U.S. and Canada to examine the health of our shared Salish Sea ecosystem.
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Chemicals Determined Not Likely to Present an Unreasonable Risk Following Pre-Manufacture Notification Review
This page describes the regulatory determination EPA has made following review of pre-manufacture notifications under section 5 of TSCA, as amended by the Frank R. Lautenberg Chemical Safety for the 21st Century law, P.L. 114-182.
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Federal Air Rules for Indian Reservations (FARR) in Idaho, Oregon and Washington
Federal air rules for 39 indian reservations in Idaho, Oregon and Washington.
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What You Can Do About Climate Change — Transportation
Transportation tips for fighting climate change at home, at the office, on the road and at school.
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Science Matters Podcast: Climate Change Research
Listen to a podcast with Dr. Andy Miller, the Associate Director for Climate for the Agency's Air, Climate, and Energy Research Program, as he answers questions about climate change research, or read some of the highlights from the conversation here.
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Green Infrastructure Soak Up the Rain Webinars
EPA's Green Infrastructure Soak Up the Rain webinars feature leading academics and professionals from around the country sharing expertise on a range of topics related to green infrastructure.
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What You Can Do About Climate Change — Community-Scale Action
Tips for fighting climate change at home, at the office, on the road and at school.
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Stationary Refrigeration Resources for Homeowners
Provides information for homeowners about purchasing, maintaining, and disposing stationary refrigeration and air-conditioning equipment.