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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 381 208

  2. CMAQ CMAQ Public

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

    Fortran 324 221

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

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

    C 295 199

Repositories

Showing 10 of 633 repositories
  • TADAShiny Public

    TADAShiny is a R Shiny application (link to web version below) built on top of the TADA R Package (https://github.com/USEPA/TADA). It provides a user friendly, web accessible interface.

    USEPA/TADAShiny’s past year of commit activity
    R 15 CC0-1.0 8 38 1 Updated Sep 4, 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 55 CC0-1.0 23 78 (7 issues need help) 1 Updated Sep 4, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 19 MIT 8 8 1 Updated Sep 4, 2025
  • hwip Public

    Hazardous Waste Information Platform

    USEPA/hwip’s past year of commit activity
    2 0 0 0 Updated Sep 4, 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 25 27 1 1 Updated Sep 4, 2025
  • e-manifest Public

    API services documentation and reference material for the e-Manifest hazardous waste tracking system

    USEPA/e-manifest’s past year of commit activity
    HTML 30 CC0-1.0 24 8 0 Updated Sep 4, 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 Sep 4, 2025
  • spd-hfc-data-hub Public

    This repo contains the tables for the RY 2024 HFC Data Hub.

    USEPA/spd-hfc-data-hub’s past year of commit activity
    1 MIT 0 0 0 Updated Sep 4, 2025
  • SDAM-web-app Public

    Web Application for the Regional Streamflow Duration Assessment Methods (SDAMs)

    USEPA/SDAM-web-app’s past year of commit activity
    R 2 MIT 2 0 0 Updated Sep 4, 2025
  • StreamCatTools Public

    R package to work with the StreamCat API within R and access the full suite of StreamCat catchment and watershed scale metrics for all NHDPlusV2 stream reaches and catchments.

    USEPA/StreamCatTools’s past year of commit activity
    R 35 CC0-1.0 10 15 0 Updated Sep 4, 2025
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