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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 usajobs.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 395 210

  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 334 222

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

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

    C 304 206

Repositories

Showing 10 of 660 repositories
  • the-manifest-game Public

    Interactive decision tree to guide e-Manifest users

    USEPA/the-manifest-game’s past year of commit activity
    TypeScript 0 MIT 3 0 6 Updated Nov 1, 2025
  • gflow1 Public
    USEPA/gflow1’s past year of commit activity
    Fortran 3 MIT 5 5 0 Updated Nov 1, 2025
  • 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 1, 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 1 MIT 10 0 0 Updated Nov 1, 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 60 CC0-1.0 23 93 (7 issues need help) 6 Updated Nov 1, 2025
  • Organon Public

    Repository for the Organon collaborative framework for resilience planning

    USEPA/Organon’s past year of commit activity
    HTML 1 0 0 0 Updated Oct 31, 2025
  • csb-rebate-forms-app Public

    Code related to the U.S. EPA Clean School Bus (CSB) data collection system. Specifically, this repository provides code for the cloud.gov hosted CSB Rebate Forms Application (i.e., Applicant Dashboard).

    USEPA/csb-rebate-forms-app’s past year of commit activity
    CSS 2 CC0-1.0 2 0 1 Updated Oct 31, 2025
  • EnviroAtlas_v4 Public

    EnvrioAtlas migration to JS4. Easy to use, interactive mapping application to access hundreds of maps showing environmental data

    USEPA/EnviroAtlas_v4’s past year of commit activity
    Jupyter Notebook 1 MIT 0 0 1 Updated Oct 31, 2025
  • webcms Public

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

    USEPA/webcms’s past year of commit activity
    JavaScript 12 9 0 24 Updated Oct 31, 2025
  • WMLCI Public

    Waste Management Life Cycle Inventory Model Assembler and Calculator

    USEPA/WMLCI’s past year of commit activity
    Python 2 MIT 1 0 0 Updated Oct 31, 2025
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Most used topics

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