Science & Technology

EPA has determined that the underlying information and conclusions are objective and of high quality, consistent with the EPA information quality guidelines

March 14, 2007 RFR: Storm Water Enforcement and Compliance: Construction

Submitted on behalf of the National Association of Home Builders

Three Keys to BMP Performance: Concentration, Volume, and Total Load

What is the concentration of the pollutant leaving the best management practice (BMP) and being discharged into the environment

Ambient Air Methods and Measurement Development Research

EPA is working to develop state-of-the-art methods for measurement technology to help states, tribes, and air quality managers accurately monitor air pollutants.

Chemicals and Materials We Are Researching

Chemicals and materials being researched by EPA's safer chemicals researchers.

Hoja Informativa del Sitio Superfund Lot 46 Valley Gardens TCE, Des Moines, Iowa, Junio de 2023

Actualización del sitio

Lot 46 Valley Gardens TCE Superfund Site, Des Moines, Iowa – Fact Sheet, June 2023

Site Update

Cyprus Specialty Metals Company/Roquette America, Inc. Facility, Keokuk, Lee County, Iowa - Fact Sheet, July 2019

Public Comment Period for Draft RCRA Post-Closure Permit

Environmental Monitoring in the Everglades

Get data and reports about Everglades ecosystem monitoring and assessment activities.

July 1, 2004, Transportation Conformity Final Rule

This page provides access to the July 1, 2004, conformity final rule that addresses the new ozone and PM2.5 air quality standards and the March 2, 1999, conformity court decision.

March 10, 2006, Transportation Conformity Rule That Addresses Requirements for Project-level Conformity Determinations in PM2.5 and PM10 Nonattainment and Maintenance Areas

This final rule, published March 10, 2006, establishes requirements for project-level conformity determinations in particulate matter (PM) 2.5 nonattainment and maintenance areas, and revises existing requirements for projects in PM10 areas.