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Science Topics

Summary

Science Category

EPA is one of the world’s leading environmental and human health research organizations. Science provides the foundation for Agency policies, actions, and decisions made on behalf of the American people. Learn more about research at EPA and environmental measurements and modeling, and the wealth of environmental data shared by EPA.

About EPA

  • Office of Research and Development (ORD) 
  • EPA Laboratories, Research Centers, and Science Advisory
 

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  • Water Research: EPANET

Latest Science Matters Articles

  • EPA Notifies States of Potential Designations for the Biden EPA’s Flawed 2024 Air Quality Standard Following Appealed Court Order

    Today, U.S. Environmental Protection Agency notified all 50 states, the District of Columbia, five territories, and 67 Tribes of the agency’s intended approach for area designations under the Biden-era 2024 revised National Ambient Air Quality Standards.

    • Release Date: October 2, 2026
  • EPA Announces $272 Million WIFIA Loan to Support Drinking Water in Columbia, Tennessee 

    Today, U.S. Environmental Protection Agency (EPA) announced a $272 million Water Infrastructure Finance and Innovation Act (WIFIA) loan to the city of Columbia, Tennessee, known as “Muletown,” with a population of about 50,000.

    • Release Date: October 2, 2026
  • Sioux Chief Manufacturing Co, Inc. - Clean Water Act Public Notice

    The EPA is providing notice of a proposed Administrative Penalty Assessment in the form of an Expedited Settlement Agreement (“ESA”) against Sioux Chief Manufacturing Co, Inc. for alleged violations at the Peculiar, Missouri facility.

Read more from Science Matters

 

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Last updated on October 23, 2025
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