Learn the Issues

Section 9: Ground Water - Likelihood of Release

Learn how EPA evaluates an identified aquifer's likelihood of release factor category for the purpose of scoring the ground water pathway.

Air Monitoring in New England

Discover the location of air quality monitors across New England and some of the historical exceedances for certain criteria pollutants.

Targeted Brownfields Assessment Factsheets for Arizona, California, Hawaii, and Nevada

Technical Assistance to Brownfields Communities Project Fact Sheets from California, Arizona, Nevada and Hawaii.

Questions and Answers about Polychlorinated Biphenyls (PCBs) in Building Materials

This questions and answers document is meant to help school administrators, building owners, managers and occupants better understand the types of building materials that may contain PCBs.

2020 NEI Supporting Data and Summaries

Explains the sources of information in the inventory; show what sources of data used for each sector; and provide more information about the components.

Investigating for Possible Contamination in the East Avenue Study Area

Primary source of information of the EPA Erie Coke Corp Site Assessment: What Has Been Done, Current Status, Site Documents and Data, EPA Resources, Contacts, Photos, and FAQs. This information is available in translated languages.

Air Quality Resources for Tribes in Region 10

EPA resources for managing air-related environmental issues on tribal lands in Alaska, Idaho, Oregon, and Washington.

Environmental Crime Victim Resources - Ohio

A resource listing for environmental crime victims

Cleaning Up Tribal Lands in Region 10

EPA resources for managing environmental issues on tribal lands in Alaska, Idaho, Oregon, and Washington.

Air Quality Index and Real-time Air Quality Data

Get air quality index and real-time air quality data.

2026 PM2.5 Exceedances

View 2026 PM2.5 Exceedances for New England.

Financial Assurance Requirements for Hazardous Waste Treatment, Storage and Disposal Facilities

The Resource Conservation and Recovery Act (RCRA) requires all treatment, storage and disposal facilities (TSDFs) to demonstrate that they will have the financial resources to properly close the facility

Participate in the Permitting Process

Provides information on how the public can comment on PSD permits, NSR regulations and actions to approve state and local programs.

Clean School Bus Rebates: Online Application Forms

This webpage provides information on the rebate applications for clean school buses.

Moss Landing Vistra Battery Fire Response

As guests in the Monterey community, we are committed to completing our work with the utmost respect and collaboration with Monterey County and other local officials. Transparency and community engagement throughout the process is central to our approach.