Learn the Issues

Linwood Mining and Minerals Corporation - Clean Water Act Public Notice

The EPA is providing notice of a proposed Administrative Penalty Assessment against Linwood Mining and Minerals Corporation, for alleged violations at its limestone mining processing facility located in 401 E. Front Street, Davenport, Iowa, 52804.

Project Level Training for Quantitative PM Hot-Spot Analyses

Course materials for EPA's "Transportation Conformity Guidance for Quantitative Hot-spot Analyses in PM2.5 and PM10 Nonattainment and Maintenance Areas" are listed.

National Response Center

The NRC is the federal government's national communications center, which is staffed 24 hours a day by U.S. Coast Guard officers and marine science technicians. Sole federal point of contact for reporting all hazardous substance releases and oil spills

National Lakes Assessment

The National Lakes Assessment is a collaborative, statistical survey of the nation's lakes. It is one of four national surveys that EPA and its partners conduct to assess the condition and health of the nation's water resources.

Stationary Sources of Air Pollution

This web area catalogs emissions requirements for stationary sources of air pollution by categories recognized by the Clean Air Act.

Basic Information about Surface Coal Mining in Appalachia

Basics of mountaintop mining

June 2009 Memorandum of Understanding Among the Army, Department of the Interior, and EPA Implementing the Interagency Action Plan on Appalachian Surface Coal Mining

Memorandum of Understanding Among the U.S. Department of the Army, U.S. Department of the Interior, and EPA Implementing the Interagency Action Plan on Appalachian Surface Coal Mining, June 11, 2009

Notice of Public Hearing Regarding EPA Objection to Proposed NPDES Permit for Discharges from City of Asheboro Wastewater Treatment Plant

Public Hearing regarding EPA’s Specific Objection to the proposed NPDES permit for the Asheboro held in accordance with 40 CFR §123.44(e).

Comments Due Date: October 31, 2025
Geographic Locations: Southeast, North Carolina

Tribal Programs in the Pacific Northwest and Alaska

Resources for environmental protection in Indian Country in EPA’s Region 10, serving tribes in Alaska, Idaho, Oregon, Washington.

Heat Island Related Links

Links to other websites relevant to heat islands and heat island mitigation strategies

Heat Island Trends

Climate and Change in Heat Islands

January—March 2024 Newsletter

EPA's Pacific Southwest (Region 9) Winter 2024 Newsletter: Learn about our work restoring water service on Maui, protecting people from hazardous waste, improving air quality and investments in the Pacific Southwest region.

National Drinking Water Advisory Council (NDWAC)

The NDWAC provides advice, information, and recommendations on matters relating to functions, policies and regulations required by the Safe Drinking Water Act.

Perchlorate in Drinking Water Frequent Questions

Perchlorate occurs naturally in arid states in the Southwest United States, in nitrate fertilizer deposits in Chile, and in potash ore in the United States and Canada. It has also been found in some public drinking water systems and in food.

Septic Systems - What to Do after the Flood

Where can I find information on my septic system? Do I pump my tank during flooded or saturated drainfield conditions? What if my septic system has been used to dispose wastewater from my business? What do I do with my septic system after the flood?

Part 75 Emissions Monitoring Technical Questions and Answers

Provides clarification on the requirements of 40 CFR Part 75 through a series of questions and answers that can be used by units to monitor mass sulfur dioxide emissions, mass carbon dioxide emissions, nitrogen oxide rate and heat input.

EPA announces a total of $337 million to North Carolina for water infrastructure resiliency and repair of environmental damage from Hurricane Helene

Release Date: September 3, 2025