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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 usabjos.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 336 193

  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 296 212

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

    Dynamic hydrology-hydraulic water quality simulation model

    C 251 179

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 206 28

Repositories

Showing 10 of 502 repositories
  • vdeq-stream-condition-predictions Public

    The vdeq-stream-condition-prediction repository is for making spatial stream network predictions of stream condition in the James River watershed in Virginia. The data come from Probabilistic Monitoring by Virginia Department of Environmental Quality that is used in a spatial stream network (SSN) analysis.

    USEPA/vdeq-stream-condition-predictions’s past year of commit activity
    HTML 0 MIT 2 5 0 Updated Feb 19, 2025
  • WNTR Public

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

    USEPA/WNTR’s past year of commit activity
    Python 336 193 38 4 Updated Feb 19, 2025
  • CIP-service Public

    Updated version of Catchment Index Processing (CIP) Service to provide an API where outside users can index their own GIS data to NHDPlus hydrography

    USEPA/CIP-service’s past year of commit activity
    PLpgSQL 4 CC0-1.0 2 0 0 Updated Feb 19, 2025
  • ATtILA2 Public

    Esri ArcGIS toolbox that allows users to easily calculate many common landscape metrics

    USEPA/ATtILA2’s past year of commit activity
    Python 10 4 0 0 Updated Feb 19, 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 43 CC0-1.0 19 76 (8 issues need help) 4 Updated Feb 19, 2025
  • FrEDI Public

    FrEDI estimates annual physical and economic impacts from temperature to the U.S., through the 21st century

    USEPA/FrEDI’s past year of commit activity
    HTML 12 11 16 1 Updated Feb 19, 2025
  • USEPA/Aquatic-Resource-Data-Forms’s past year of commit activity
    R 0 2 0 0 Updated Feb 19, 2025
  • e-manifest Public

    API services documentation and reference material for the e-Manifest hazardous waste tracking system

    USEPA/e-manifest’s past year of commit activity
    HTML 26 CC0-1.0 24 21 0 Updated Feb 19, 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 Feb 19, 2025
  • SWMM-GUI Public

    Source Code for the Stormwater Management Model Graphical User Interface

    USEPA/SWMM-GUI’s past year of commit activity
    Pascal 7 3 12 1 Updated Feb 19, 2025