Learn the Issues
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EPA's 2021 California Fire Response
Discover information about EPA's wildfire response in California in 2021.
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Blue Plains Wastewater Facility in Washington DC Reinforces Facility Against Floods
Case Study on the Blue Plains Wastewater Facility in Washington DC
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EPA in the Pacific Islands
Information about EPA's efforts and environmental conditions in American Samoa, Commonwealth of the Northern Mariana Islands (CNMI), Guam, Federated States of Micronesia, the Republic of the Marshall Islands, Republic of Palau, U.S. Minor Outlying Islands.
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EPA in California
Portal for news and information about EPA's efforts and environmental conditions in California.
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EPA in Hawai'i
Portal for news and information about EPA's efforts and environmental conditions in Hawai'i.
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EPA in Arizona
Portal for news and information about EPA's efforts and environmental conditions in Arizona.
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Pacific Southwest (Region 9) Media Center
News media, state and local officials, and others can find press releases, media events and contacts in EPA's Pacific Southwest. Additional resources include newsletters, annual reports, and library services that support regional activities.
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Lead Service Line Replacement Program
Assist federally recognized tribes within EPA Region 9 (CA, NV, AZ) to address lead service line replacement projects and associated activities directly connected to the identification, planning, design, and replacement of lead service lines.
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EPA is extending the nomination and public comment periods for the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC) to receive additional nominees and input on prospective candidates for membership.
EPA is extending the nomination and public comment periods for the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC) to receive additional nominees and input on prospective candidates for membership.
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NAFTA TWG: 2013 - Meeting Summary
NAFTA TWG: 2014 - Meeting Summary
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EPA Proposes to Register New Uses of Pesticide Chlormequat Chloride
The Environmental Protection Agency released new uses of Chlormequat Chloride
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PRIA Glossary
Pesticide registration improvement extension act (PRIA 3) definition of terms glossary
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Carbon Dioxide as a Fire Suppressant: Examining the Risks: Appendices
Appendices for the Carbon Dioxide as a Fire Suppressant: Examining the Risks comprehensive data review.
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EnviroSafe Finding of Violation
This document outlines the U.S. Environmental Protection Agency reissuing an enclosed Finding of Violation (FOV) to Enviro-Safe Refrigerants, Inc. (you). We find that you have violated the Clean Air Act, 42 U.S.C. § 7413(a) (the CAA).
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Fact Sheet: Protection of Stratospheric Ozone: Determination 31 for Significant New Alternatives Policy Program
Under section 612 of the Clean Air Act, EPA reviews substitutes within a comparative risk framework.
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Exploring Estuaries: What Challenges Do Our Estuaries Face?
An overview of the kinds of challenges faced by estuaries such as nutrient pollution, pathogens, toxic chemicals, habitat loss, invasive species, and water flow changes.
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Exploring Estuaries: Glossary
Glossary of terms related to estuaries.
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EPA Decides on Cleanup Plans for Seven Abandoned Uranium Mine Sites in Navajo Nation
EPA News Release: EPA Decides on Cleanup Plans for Seven Abandoned Uranium Mine Sites in Navajo Nation
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Archived: Alternative Measurement Protocols for Biogas and Renewable Natural Gas
This page has past year approved alternative measurement protocols under the biogas regulatory reform provisions.
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Global Non-CO2 Greenhouse Gas Emission Projections & Mitigation Potential: 2020-2080
View the Global Non-CO2 Greenhouse Gas Emission Projections & Mitigation Potential: 2020-2080 report.