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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

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  1. WNTR WNTR Public

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

    Python 352 200

  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 312 220

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

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

    C 270 184

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 207 28

Repositories

Showing 10 of 585 repositories
  • 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 May 3, 2025
  • NARS-Data-Extraction-Tool Public

    Generalized eForms Shiny app to parse data across all NARS surveys

    USEPA/NARS-Data-Extraction-Tool’s past year of commit activity
    R 1 MIT 3 0 0 Updated May 2, 2025
  • IntraCMS Public

    US EPA Intranet CMS

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

    This R package can be used to compile and evaluate Water Quality Portal (WQP) data for samples collected from surface water monitoring sites on streams and lakes. It can be used to create applications that support water quality programs and help states, tribes, and other stakeholders efficiently analyze the data.

    USEPA/EPATADA’s past year of commit activity
    R 50 CC0-1.0 23 75 (8 issues need help) 2 Updated May 2, 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 May 2, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 13 MIT 8 8 0 Updated May 2, 2025
  • ShinyVB Public

    Shiny version of Virtual Beach

    USEPA/ShinyVB’s past year of commit activity
    R 0 Apache-2.0 0 0 0 Updated May 2, 2025
  • USEPA/ccte-docker-build’s past year of commit activity
    0 2 0 0 Updated May 2, 2025
  • EnviroAtlas_JSApp Public

    Easy to use, interactive mapping application to access hundreds of maps showing environmental data

    USEPA/EnviroAtlas_JSApp’s past year of commit activity
    JavaScript 16 9 0 0 Updated May 2, 2025
  • SENTINEL Public
    USEPA/SENTINEL’s past year of commit activity
    R 4 MIT 2 0 0 Updated May 2, 2025