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@USEPA

U.S. Environmental Protection Agency

Protecting Human Health and the Environment
README.md

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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 336 192

  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
  • 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
  • StreamCatTools Public

    R package to work with the StreamCat API within R and access the full suite of StreamCat catchment and watershed scale metrics for all NHDPlusV2 stream reaches and catchments.

    USEPA/StreamCatTools’s past year of commit activity
    R 31 CC0-1.0 9 18 1 Updated Feb 19, 2025
  • flowsa Public

    Library that attributes resource use, waste, emissions, and loss to economic sectors

    USEPA/flowsa’s past year of commit activity
    Python 27 MIT 23 24 2 Updated Feb 19, 2025
  • NEP-Ocean-Acidification Public Forked from amandovi/NEP-OA-WQ

    Code used for filtering, QAing, and visualizing monitoring data from NEP sites for ocean acidification and water quality analysis

    USEPA/NEP-Ocean-Acidification’s past year of commit activity
    R 1 3 0 0 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
  • GEPA Public

    This repository contains the code for the EPA U.S. gridded methane greenhouse gas inventory (gridded GHGI)

    USEPA/GEPA’s past year of commit activity
    Python 5 MIT 5 18 6 Updated Feb 18, 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 18, 2025
  • StreamCat Public

    Landscape summaries of natural and anthropogenic landscape features for ~2.65 million streams, and their associated catchments, within the conterminous USA

    USEPA/StreamCat’s past year of commit activity
    Python 52 16 36 0 Updated Feb 18, 2025
  • EJAM-open Public

    Package for summarizing environmental and residential population information for multiple locations

    USEPA/EJAM-open’s past year of commit activity
    R 2 MIT 8 1 0 Updated Feb 18, 2025
  • 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
    0 MIT 2 5 0 Updated Feb 18, 2025
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