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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

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  1. WNTR Public

    An EPANET compatible python package to simulate and analyze water distribution networks under disaster scenarios.

    Python 346 197

  2. CMAQ Public

    Code for U.S. EPA’s Community Multiscale Air Quality Model (CMAQ) which helps in conducting air quality model simulations

    Fortran 303 216

  3. Stormwater-Management-Model Public

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

    C 263 181

  4. elevatr Public

    An R package for accessing elevation data

    R 205 28

Repositories

Showing 10 of 527 repositories
  • BMDS Public

    U.S EPA Benchmark Dose Modeling Software (BMDS)

    C++ 1 MIT 2 0 1 Updated Mar 28, 2025
  • flowsa Public

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

    Python 27 MIT 23 24 5 Updated Mar 27, 2025
  • FrEDI Public

    FrEDI estimates annual physical and economic impacts from temperature to the U.S., through the 21st century

    HTML 12 13 16 1 Updated Mar 27, 2025
  • FrEDI_Data Public

    Data repo for FrEDI, a tool to estimate economic impacts from temperature

    HTML 0 MIT 2 4 0 Updated Mar 27, 2025
  • msft-chatbot-ui Public Forked from Patrick-Davis-MSFT/chatbot-ui

    Customized GenAI chatbot interface for EPA employees

    TypeScript 1 MIT 8,716 0 0 Updated Mar 27, 2025
  • data_gathering Public

    Repository for scraping GHS and experimental toxicity/physicochemical property data and storing it in a common format

    Java 0 2 0 0 Updated Mar 27, 2025
  • test-app Public

    Repository for downloadable TEST (Toxicity Estimation Software Tool) Java application

    Java 0 2 0 0 Updated Mar 27, 2025
  • hibernate_qsar_model_building Public

    This project manages the database underlying WebTest2.0 using Hibernate based Java code

    Java 0 2 0 0 Updated Mar 27, 2025
  • GEPA Public

    This repository contains the code for the EPA U.S. gridded methane greenhouse gas inventory (gridded GHGI)

    Python 6 MIT 6 1 6 Updated Mar 27, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    R 12 MIT 8 7 0 Updated Mar 27, 2025