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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 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 Public

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

    Python 349 200

  2. CMAQ Public

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

    Fortran 309 217

  3. Stormwater-Management-Model Public

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

    C 269 183

  4. elevatr Public

    An R package for accessing elevation data

    R 206 28

Repositories

Showing 10 of 574 repositories
  • SSN2 Public

    SSN2: Spatial Modeling on Stream Networks in R

    R 20 GPL-3.0 6 2 1 Updated Apr 19, 2025
  • code-json-generator Public Forked from emartinez-usgs/code-json-generator

    Automation that scrapes USEPA github and provides that metadata for code.gov

    JavaScript 0 MIT 10 0 0 Updated Apr 19, 2025
  • egrid Public

    Emissions & Generation Resource Integrated Database (eGRID)

    R 13 MIT 8 8 0 Updated Apr 19, 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.

    R 33 CC0-1.0 9 19 0 Updated Apr 18, 2025
  • AVERT Public

    Tool which evaluates how energy policies and programs such as energy efficiency and renewable energy lead to changes in emissions from electric power plants

    TypeScript 9 CC0-1.0 4 0 3 Updated Apr 18, 2025
  • test-app Public

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

    Java 0 2 0 0 Updated Apr 18, 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 Apr 18, 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 Apr 18, 2025
  • FrEDI_Data Public

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

    HTML 1 MIT 2 4 0 Updated Apr 18, 2025
  • GEPA Public

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

    Python 8 MIT 6 0 2 Updated Apr 18, 2025