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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 346 197

  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 304 216

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

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

    C 265 182

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 205 28

Repositories

Showing 10 of 529 repositories
  • 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 5 Updated Mar 31, 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 Mar 31, 2025
  • CompTox-ToxCast-tcplFit2 Public

    A Concentration-Response Modeling Utility

    USEPA/CompTox-ToxCast-tcplFit2’s past year of commit activity
    R 6 5 26 2 Updated Mar 31, 2025
  • haztrak Public

    An open-source web app that illustrates how waste management software can interface with RCRAInfo to track hazardous waste electronically

    USEPA/haztrak’s past year of commit activity
    Python 49 MIT 22 0 0 Updated Mar 31, 2025
  • ctxR Public

    Utilities for Interacting with the CTX APIs in R without prior API knowledge https://www.epa.gov/comptox-tools/computational-toxicology-and-exposure-apis

    USEPA/ctxR’s past year of commit activity
    R 11 GPL-3.0 7 12 1 Updated Mar 31, 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 48 CC0-1.0 21 72 (8 issues need help) 2 Updated Mar 31, 2025
  • USEEIO Public

    Estimating potential impacts of goods and services in the US economy (overview repository)

    USEPA/USEEIO’s past year of commit activity
    Python 30 31 7 (1 issue needs help) 2 Updated Mar 31, 2025
  • treecompareR Public
    USEPA/treecompareR’s past year of commit activity
    R 1 GPL-3.0 3 0 0 Updated Mar 31, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 12 MIT 8 7 0 Updated Mar 31, 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 Mar 31, 2025
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