Science & Technology
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Nonpoint Source Success Stories: Arizona
Stories about primarily nonpoint source-impaired waterbodies in Arizona where restoration efforts have led to documented water quality improvements.
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Water Quality Standards Regulations: Louisiana
Information related to Water Quality Standards for Louisiana.
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Summary of the European Union's Regulation for Agricultural Water Reuse
European Commission (Federal Regulation) | Source water: Treated municipal wastewater | End use: Water Reuse for Agriculture
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Summary of Florida's Water Reuse Guideline or Regulation for Agriculture
Florida (State Regulation) | Source water: Treated municipal wastewater | End use: Agriculture
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Summary of District of Columbia’s Water Reuse Guideline or Regulation for Landscaping and Onsite Non-potable Water Reuse
District of Columbia (State Regulation) | Source water: Onsite Collected Waters | End use: Landscaping and Onsite Non-Potable Water Reuse
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Summary of Colorado's Water Reuse Guideline or Regulation for Potable Water Reuse
Colorado (State Regulation) | Source water: Treated municipal wastewater | End use: Potable water reuse
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2018v2 Emissions Modeling Platform
Modeling files and documentation from the 2018v2 Emissions Modeling Platform
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EPA Non-Regulatory Health-Based Drinking Water Levels
EPA Non-Regulatory Health-Based Drinking Water Levels - Find information on water contaminants' effects on human health, including advisory tables and documents and benchmarks for pesticides.
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EPA Metadata Technical Specification
Requirements for creating metadata documents.
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Tutorial: Create a RETIGO File from an Excel Spreadsheet
Real Time Geospatial Data Viewer Allows users to view their mobile monitored air quality data
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National Research Programs
EPA's Office of Research and Development supports six research programs that identify the most pressing environmental health research needs with input from EPA offices, partners, and stakeholders.
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Design Value Interactive Tool
This page displays the Design Value Interactive Tool
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About GCX Resilience
This page is about the METRO tool that is part of the Global Climate Explorer set of tools using an ESRI map to display the data. It was taken offline in 2021 to be released by a newer tool. See the 2017 Final Report for more details on using METRO.
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Summary of Maryland's Water Reuse Guideline or Regulation for Landscaping
Maryland (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of Texas' Water Reuse Guideline or Regulation for Onsite Non-Potable Water Reuse, Industry, Landscaping, and Agriculture
Texas (State Regulation) | Source water: Onsite collected waters | End use: Onsite non-potable reuse
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Current Law, Regulations and Guidance for State and Local Transportation
This page provides access to all transportation conformity regulations, including final rules and rulemakings currently in progress.
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From the Desk of the Regional Administrator - "EPA Region 7 Celebrates Earth Day 2026"
EPA Region 7’s “From the Desk of the Regional Administrator” newsletter gives residents of Iowa, Kansas, Missouri, and Nebraska a chance to hear from Regional Administrator Jim Macy on EPA’s work in their communities.
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Excess Food Opportunities Map
EPA created the excess Food opportunities mapping tool to help move food and food residuals up the Food Recovery Hierarchy.
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Toxicology Testing in the 21st Century (Tox21)
Tox21 researchers aim to develop better toxicity assessment methods to quickly and efficiently test whether certain chemical compounds have the potential to disrupt processes in the human body that may lead to negative health effects.
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Great Lakes Phytoplankton Monitoring
Great Lakes phytoplankton monitoring program