Learn the Issues

Private Drinking Water Well Programs in Your State

Information about private drinking water wells organized by state

PFAS OUT

PFAS OUT is the EPA's proactive outreach initiative designed to assist communities in managing per- and polyfluoroalkyl substances (PFAS) in their drinking water systems.

EPA and HUD Real Estate Notification and Disclosure Rule Questions and Answers

Part 1 of a guidance answering questions from the real estate community about implementation of the March 1996 lead-based paint disclosure rule.

2024 PM2.5 Primary Annual NAAQS Designations - Oklahoma Initial Designation and EPA Response

Particle Pollution Designations - Where You Live

Particle pollution state and tribal designations

Donna Reservoir and Canal System Superfund Site Community Meeting, October 2026

Details about a community meeting on October 23, 2026, in Alamo, TX, regarding the Donna Reservoir and Canal System Superfund site.

Date: October 23, 2026

Procurement Best Practices: Mandatory Recycling and Composting

Zero Waste Procurement Best Practice: Mandatory Recycling.and Composting

Emerging Viral Pathogen Guidance and Status for Antimicrobial Pesticides

The guidance outlines a voluntary, two stage process involving product label amendments and modified terms of registration and applies only to emerging viruses.

2022 GAP Guidance Trainings

General Assistance Program, GAP, Indian Amerian, Native American, AIEO, Native Alaska Villages

AirData: Air Quality Data Collected at Outdoor Monitors Across the US

This site provides air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. Users can download, view or visualize the data.

Clean Air Act Permitting in Minnesota

Contacts and links for Clean Air Act permitting in Minnesota.

Tribal Air and Climate Resources

This site provides technical information to support air quality protection programs in Indian Country including regulations, data, and implementation support.

List of Special Government Employees (SGEs)

SGE List. A SGE is an agency employee that performs temporary duties, with or without compensation, for not more than 130 days during any period of 365 consecutive days, as defined in 18 U.S.C § 202.

Brownfields and Land Revitalization in EPA Region 5

Land Revitalization in Region 5.

Lower Green Bay/Fox River AOC

Background information and beneficial use impairments for Lower Green Bay/Fox River AOC

Air Quality Implementation Plans

States must develop plans to attain and maintain air quality standards. These plans, known as SIPs, are submitted to EPA for approval. This web site contains information about this process and the current status of the state submittals.

Region 8 (Mountains and Plains) Indoor Air Quality

Find information about local resources relating to Indoor Air Quality and EPA Region 8.

Part 75 Petition Responses

Find responses to petitions submitted by affected units subject to 40 CFR Part 75.

Advancement of Salinity and Flow Monitoring in the San Francisco Bay Delta

This report describes the utility and approximate cost of expanding the salinity water quality monitoring network along the axis of the San Francisco Estuary from Suisun Bay to Rio Vista on the Sacramento River.

Final Report: Audit of Arizona’s Pesticide Complaint Program

Final report of EPA's Pacific Southwest (Region 9) audit of Arizona’s pesticide complaint program evaluating the state’s process of tracking and investigating pesticide use related complaints.