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 usajobs.gov.

Here are some interesting topics to explore:

  • research -- EPA 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 473 244

  2. CMAQ CMAQ Public

    Code for U.S. EPA’s Community Multiscale Air Quality Model (CMAQ) for estimating ozone, particulates, toxics, and deposition of acids and nutrients at neighborhood to global scales.

    Fortran 370 236

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

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

    C 381 250

Repositories

Showing 10 of 698 repositories
  • spmodel Public

    spmodel: Spatial Statistical Modeling and Prediction in R

    USEPA/spmodel's past year of commit activity
    R 27 GPL-3.0 5 0 0 Updated Nov 2, 2026
  • SSN2 Public

    SSN2: Spatial Modeling on Stream Networks in R

    USEPA/SSN2's past year of commit activity
    R 26 GPL-3.0 8 0 0 Updated Nov 2, 2026
  • BMDS Public

    U.S EPA Benchmark Dose Modeling Software (BMDS)

    USEPA/BMDS's past year of commit activity
    C++ 14 MIT 7 2 3 Updated Nov 2, 2026
  • pyaqsapi Public

    A python 3 package to retrieve ambient air monitoring data from the United States Environmental Protection Agency’s (US EPA) Air Quality System (AQS) Data Mart API v2 interface

    USEPA/pyaqsapi's past year of commit activity
    Python 30 MIT 10 3 6 Updated Nov 2, 2026
  • hawc Public

    Captures key data for health assessment of chemicals and other environmental hazards

    USEPA/hawc's past year of commit activity
    Python 12 5 0 4 Updated Nov 2, 2026
  • 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 76 CC0-1.0 29 152 (5 issues need help) 5 Updated Nov 2, 2026
  • provisional_habs Public

    Repository holding data from Harmful Algal Bloom (HAB) monitoring conducted by United States Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modelling, Atlantic Coastal Environmental Sciences Division researchers

    USEPA/provisional_habs's past year of commit activity
    3 CC0-1.0 2 0 0 Updated Nov 2, 2026
  • 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 2 MIT 10 0 0 Updated Nov 2, 2026
  • webcms Public

    Content management system for EPA's flagship website, www.epa.gov

    USEPA/webcms's past year of commit activity
    JavaScript 13 MIT 8 0 41 Updated Nov 2, 2026
  • rExpertQuery Public

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

    USEPA/rExpertQuery's past year of commit activity
    R 8 CC0-1.0 5 4 1 Updated Nov 1, 2026
View all repositories

Top languages

Loading…