Learn the Issues
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Preparing for Smoke and Heat
Reducing Exposure to Wildfire Smoke
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Lake Superior
Statistics about the geography and bathymetry of Lake Superior
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Historical PFOA and PFOS Health Effects Science Documents
PFOA (Perfluorooctanoic acid) and PFOS (Perfluorooctanesulfonic acid) advisories for drinking water system operators, and state, tribal and local officials.
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Greenhouse Gas Endangerment Finding Timeline
Timeline describing process EPA followed in making an endangerment determination for greenhouse gases under the Clean Air Act.
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June 26, 2012, U.S. Court of Appeals–D.C. Circuit's Decision to Uphold EPA's Endangerment Finding
Court decision upholding EPA's GHG Endangerment Finding and greenhouse gas regulations issued under the Clean Air Act for passenger vehicles.
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Petitions and EPA's Response for Rehearing the Greenhouse Gas Court Decision
View the U.S. Chamber of Commerce's and the National Association of Manufacturers' (with others) petitions to the U.S. Court of Appeals-D.C. Circuit to rehear the case, as well as the Department of Justice and EPA's response to the petitions.
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Final Rule Denying the Petitions to Reconsider the Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act
View EPA's denial of petitions to reconsider the Endangerment and Cause or Contribute Findings for Greenhouse Gases under section 202(a) of the Clean Air Act.
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U.S. Court of Appeals–D.C. Circuit Upholds EPA's Action to Reduce Greenhouse Gases Under the Clean Air Act
View greenhouse gas court decisions.
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EPA’s Response to the Petitions to Reconsider the Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act
View the individual sections of EPA's Response to the Petitions to Reconsider the Endangerment and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act.
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Program Evaluation at the EPA
Basic Information about Program Evaluation at the EPA
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Hazardous Waste Cleanup: HOVENSA Environmental Response Trust, in Christiansted, U.S. Virgin Islands
The HOVENSA facility ("the facility") is located at Limetree Bay, St. Croix, U.S. Virgin Islands. It is a petroleum refinery covering 1,500 acres in what is known as South Industrial Complex, on the south central coast of St. Croix.
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Puget Sound Lead Organization Funding 2011-2017
Past funding awards from the EPA to support projects that protect and restore Puget Sound.
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Hazardous Waste Cleanup: Warner Chilcott Company in Fajardo, Puerto Rico
The site was formerly owned by the Puerto Rico Industrial Development Company (PRIDCO). It consists of an approximately 1.75-acre parcel that was first developed for industrial use in 1977 by the Sylvania Manufacturing Company (later known as Sylvania
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Marine Water Quality
An assessment of dissolved oxygen levels in the Salish Sea as a primary indicator of marine water quality. Part of the U.S. EPA and Environment and Climate Change Canada's Health of the Salish Sea Ecosystem Report.
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Marine Species at Risk
An assessment of marine species at risk of extinction in the Salish Sea watershed. Part of the U.S. EPA and Environment and Climate Change Canada's Health of the Salish Sea Ecosystem Report.
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EPA Approved Air Quality Regulations for Guam
EPA-approved air quality implementation plans (SIPs, FIPs, TIPs) in Guam.
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Base Realignment and Closure Act Sites
This page provides information and links regarding the EPA's work on base realignment and closure (BRAC).
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Community Water System Service Area Boundaries
Community Water System Service Area Boundaries
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Risk Assessment Guidance for Superfund (RAGS): Part A
EPA's Risk Assessment Guidance for Superfund (RAGS) Part A - provides guidance on the human health evaluation activities that are conducted during the baseline risk assessment at a Superfund site.
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2021 P3 Expo -Electro-Assisted Wastewater Nutrient Recovery
Stanford University, Stanford, CA P3 Team