Skip to content
@USEPA

U.S. Environmental Protection Agency

Protecting Human Health and the Environment

27874383918_9e9df28bd2_k

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

Pinned Loading

  1. WNTR WNTR Public

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

    Python 337 193

  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 298 213

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

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

    C 255 179

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 206 28

Repositories

Showing 10 of 500 repositories
  • VRDecon Public
    USEPA/VRDecon’s past year of commit activity
    C# 0 MIT 1 0 0 Updated Feb 28, 2025
  • rExpertQuery Public

    An R package for retrieving ATTAINS data efficiently via Expert Query web services.

    USEPA/rExpertQuery’s past year of commit activity
    0 CC0-1.0 0 0 0 Updated Feb 28, 2025
  • standardizedinventories Public

    Standardized Release and Waste Inventories

    USEPA/standardizedinventories’s past year of commit activity
    Python 26 MIT 21 7 0 Updated Feb 28, 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 28, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 9 MIT 6 4 0 Updated Feb 27, 2025
  • FrEDI_Data Public

    Data repo for FrEDI, a tool to estimate economic impacts from temperature

    USEPA/FrEDI_Data’s past year of commit activity
    HTML 0 MIT 2 4 0 Updated Feb 27, 2025
  • msft-chatbot-ui Public Forked from Patrick-Davis-MSFT/chatbot-ui

    Customized GenAI chatbot interface for EPA employees

    USEPA/msft-chatbot-ui’s past year of commit activity
    TypeScript 1 MIT 8,570 3 0 Updated Feb 27, 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 12 16 0 Updated Feb 27, 2025
  • USEPA/2024_Region8_AnalysisTool’s past year of commit activity
    R 0 CC0-1.0 0 9 0 Updated Feb 27, 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 20 77 (8 issues need help) 5 Updated Feb 27, 2025