Science & Technology
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Watershed and Water Quality Modeling Technical Support Center Factsheet
The factsheet provides an overview of the Watershed and Water Quality Modeling Technical Support Center.
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TMDL Modeling ToolBox Factsheet
The factsheet provides an overview of the TMDL Modeling Toolbox.
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USDA’s NIFA-CEAP Watershed Synthesis: Lessons Learned
Archived Watershed Academy CEAP webcast
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Watershed Academy Webcast: USDA's National Water Quality Initiative
This page contains a description and documentation associated with the webcast on how USDA’s NWQI is working in priority watersheds to help farmers, ranchers and forest landowners improve water quality.
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Watershed Academy Webcast: Improve Water Quality by Using Cover Crops and Other Conservation Systems
This page contains a description and documentation associated with the webcast on improving water quality through the use of cover crops and other agricultural conservation systems.
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Watershed Academy Webcast: Understanding Nutrient Issues Affecting Ohio’s Inland Lakes
This page contains a description and documentation associated with the webcast on how USDA’s NWQI is working in priority watersheds to help farmers, ranchers and forest landowners improve water quality.
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Options for Expressing Daily Loads in TMDLs
The draft document provides technical options for developing daily load expressions in TMDLs calculated using time frames greater than daily allocations.
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Listing Waters Impaired by Atmospheric Mercury: Voluntary Subcategory 5m for States with Comprehensive Mercury Reduction Programs
The document presents information regarding a voluntary approach for listing waters impaired by mercury predominantly from atmospheric sources pursuant to Clean Water Act Section 303(d), also known as “subcategory 5m.”
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Using Microbial Source Tracking to Support TMDL Development and Implementation
A guide for TMDL practitioners on microbial source tracking, detailing how it can be used to support TMDL development and implementation.
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TMDLs Where Mercury Loadings are Predominantly from Air Deposition
A presentation documenting Total Maximum Daily Load (TMDL) approaches for cases in which mercury loadings are predominantly from air deposition into waters.
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Parameters (PARAMS) Program Version 1.1 for indoor emission source modeling
The PARAMS program provides 30 methods for estimating some of the parameters in indoor emission source models.
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EPA at 50 News Releases About Water
50th Anniversary news releases commemorating EPA's work with water challenges
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EPA Enterprise Vocabulary
EPA Enterprise Vocabulary is a vocabulary of scientific, technical and regulatory terms with inputs from numerous research communities throughout EPA
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Winners of the Cleaner Indoor Air During Wildfires Challenge
EPA and 10 federal, state, tribal and local organizations announce the Phase 1 winners of the Cleaner Indoor Air During Wildfires Challenge, which is designed to stimulate the advancement of new technologies to clean indoor air during wildfire smoke events
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Memorandum on use of air sensor data for NAAQS compliance
This is a memorandum that explains the use of air sensors for compliance with the National Ambient Air Quality Standards.
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Energy and the Environment Research
EPA conducts research to examine the costs and benefits of using different mixes of energy technology in the United States and is required by Congress to provide reports on biofuels and potential impacts to the environment.
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EPA Research at NEHA Annual Educational Conference & Exhibition 2024
EPA researchers shared several presentations on EPA's environmental health research at the 2024 NEHA Annual Education Conference & Exhibition.
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Ecosystems Research
EPA's ecosystems research is working to protect ecosystems and the air and water resources that provide numerous benefits for humans and other living things.
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Growing DASEES: EPA Tool Helps Cultivate Better Decisions
Feature story about EPA's Decision Analysis for a Sustainable Environment, Economy, and Society, or DASEES, tool, designed to help address these kinds of complicated decision-making needs.
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Research
Science is the foundation for EPA's credible decision-making to safeguard human health and ecosystems from pollutants. The Office of Research and Development is EPA's scientific research arm. Here you can access our products, tools, events, and more