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@USEPA

U.S. Environmental Protection Agency

Protecting Human Health and the Environment

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The US Environmental Protection Agency's mission is to protect human health and the environment. We develop models, tool, data sets, libraries, and applications to help serve our mission.

As part of the government's open source initiative, we publish software here and are open to recieving contributions depending on the project. Please see each repository's CONTRIBUTING.md file for how you can help.

Check out EPA's public open job postings usajobs.gov.

Here are some interesting topics to explore:

  • ord -- EPA's office of research and development develops models and tools to study environmental issues
  • ow -- EPA's office of water studies and regulates the US's waterways
  • oar -- EPA's Office of Air and Radiation studies and regulates air pollution and emissions

Pinned Loading

  1. WNTR WNTR Public

    An EPANET compatible python package to simulate and analyze water distribution networks under disaster scenarios.

    Python 349 200

  2. CMAQ CMAQ Public

    Code for U.S. EPA’s Community Multiscale Air Quality Model (CMAQ) which helps in conducting air quality model simulations

    Fortran 312 217

  3. Stormwater-Management-Model Stormwater-Management-Model Public

    Dynamic hydrology-hydraulic water quality simulation model for stormwater, wastewater, and combined sewer collection systems

    C 269 183

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 206 28

Repositories

Showing 10 of 576 repositories
  • IntraCMS Public

    US EPA Intranet CMS

    USEPA/IntraCMS’s past year of commit activity
    CSS 6 MIT 3 0 2 Updated Apr 22, 2025
  • CMAQ Public

    Code for U.S. EPA’s Community Multiscale Air Quality Model (CMAQ) which helps in conducting air quality model simulations

    USEPA/CMAQ’s past year of commit activity
    Fortran 312 MIT 217 5 7 Updated Apr 22, 2025
  • code-json-generator Public Forked from emartinez-usgs/code-json-generator

    Automation that scrapes USEPA github and provides that metadata for code.gov

    USEPA/code-json-generator’s past year of commit activity
    JavaScript 0 MIT 10 0 0 Updated Apr 22, 2025
  • AVERT Public

    Tool which evaluates how energy policies and programs such as energy efficiency and renewable energy lead to changes in emissions from electric power plants

    USEPA/AVERT’s past year of commit activity
    TypeScript 9 CC0-1.0 4 0 3 Updated Apr 21, 2025
  • treecompareR Public
    USEPA/treecompareR’s past year of commit activity
    R 1 GPL-3.0 3 0 0 Updated Apr 21, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 13 MIT 8 8 0 Updated Apr 21, 2025
  • AMET Public

    Code base for the U.S. EPA’s Atmospheric Model Evaluation Tool (AMET)

    USEPA/AMET’s past year of commit activity
    R 23 25 1 1 Updated Apr 21, 2025
  • USEPA/fedelemflowlist’s past year of commit activity
    Python 37 MIT 25 15 4 Updated Apr 21, 2025
  • CompTox-ToxCast-tcpl Public

    US EPA's Toxicity Forecaster (ToxCast) Pipeline. More information on the ToxCast program available here: https://www.epa.gov/comptox-tools/toxicity-forecasting-toxcast

    USEPA/CompTox-ToxCast-tcpl’s past year of commit activity
    R 36 19 30 2 Updated Apr 21, 2025
  • LCIAformatter Public
    USEPA/LCIAformatter’s past year of commit activity
    Python 25 MIT 14 5 2 Updated Apr 21, 2025