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@USEPA

U.S. Environmental Protection Agency

Protecting Human Health and the Environment

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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

Pinned Loading

  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 305 216

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

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

    C 266 182

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 205 28

Repositories

Showing 10 of 530 repositories
  • 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 0 MIT 10 0 0 Updated Apr 2, 2025
  • treecompareR Public
    USEPA/treecompareR’s past year of commit activity
    HTML 1 GPL-3.0 3 0 0 Updated Apr 2, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    USEPA/egrid’s past year of commit activity
    R 12 MIT 8 7 0 Updated Apr 1, 2025
  • CompTox-thyroid-httk Public

    This repository accompanies the manuscript by Truong et al., "Interpretation of thyroid-relevant bioactivity data for comparison to in vivo exposures: A prioritization approach for putative chemical inhibitors of in vitro deiodinase activity"

    USEPA/CompTox-thyroid-httk’s past year of commit activity
    HTML 0 0 0 0 Updated Apr 1, 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 3 Updated Apr 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 48 CC0-1.0 21 72 (8 issues need help) 2 Updated Apr 1, 2025
  • lims Public
    USEPA/lims’s past year of commit activity
    C# 3 3 49 0 Updated Apr 1, 2025
  • 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 17 MIT 8 2 0 Updated Apr 1, 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 1, 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 45 (1 issue needs help) 3 Updated Apr 1, 2025