Skip to content
@USEPA

U.S. Environmental Protection Agency

Protecting Human Health and the Environment
README.md

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 346 198

  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 307 216

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

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

    C 267 182

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 205 28

Repositories

Showing 10 of 545 repositories
  • flowsa Public

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

    USEPA/flowsa’s past year of commit activity
    Python 29 MIT 23 24 5 Updated Apr 10, 2025
  • SSN2 Public

    SSN2: Spatial Modeling on Stream Networks in R

    USEPA/SSN2’s past year of commit activity
    R 19 GPL-3.0 6 2 1 Updated Apr 10, 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 Apr 9, 2025
  • ctxR Public

    US EPA's ctxR: 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 9 2 Updated Apr 9, 2025
  • CompTox-ToxCast-tcpl Public

    US EPA's Toxicity Forecaster (ToxCast) Pipeline. More information on the ToxCast program available here: https://www.epa.gov/comptox-tools/toxicity-forecasting-toxcast

    USEPA/CompTox-ToxCast-tcpl’s past year of commit activity
    R 36 18 30 2 Updated Apr 9, 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 Apr 9, 2025
  • toxvaldbmain Public

    R package of scripts used to transform data in toxval_source (processed from ToxVal_Stage package) into normalized ToxValDB format.

    USEPA/toxvaldbmain’s past year of commit activity
    R 4 MIT 2 0 4 Updated Apr 9, 2025
  • EnviroAtlas_v4 Public

    EnvrioAtlas migration to JS4.

    USEPA/EnviroAtlas_v4’s past year of commit activity
    Jupyter Notebook 0 CC0-1.0 0 0 1 Updated Apr 9, 2025
  • SuRGE Public
    USEPA/SuRGE’s past year of commit activity
    HTML 0 MIT 1 17 0 Updated Apr 9, 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 Apr 9, 2025
View all repositories