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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 WNTR Public

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

    Python 325 190

  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 290 207

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

    Dynamic hydrology-hydraulic water quality simulation model

    C 247 177

  4. elevatr elevatr Public

    An R package for accessing elevation data

    R 206 27

Repositories

Showing 10 of 499 repositories
  • TADAShiny Public

    TADAShiny is a DRAFT 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 11 CC0-1.0 5 33 1 Updated Jan 14, 2025
  • EnviroAtlas_JSApp Public

    Easy to use, interactive mapping application to access hundreds of maps showing environmental data

    USEPA/EnviroAtlas_JSApp’s past year of commit activity
    JavaScript 13 8 0 1 Updated Jan 14, 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 40 CC0-1.0 19 73 (7 issues need help) 3 Updated Jan 14, 2025
  • EPA_MOVES_Model Public

    Estimating emissions for mobile sources

    USEPA/EPA_MOVES_Model’s past year of commit activity
    Java 86 24 5 0 Updated Jan 14, 2025
  • vdeq-stream-condition-predictions Public

    The vdeq-stream-condition-prediction repository is for making spatial stream network predictions of stream condition in the James River watershed in Virginia. The data come from Probabilistic Monitoring by Virginia Department of Environmental Quality that is used in a spatial stream network (SSN) analysis.

    USEPA/vdeq-stream-condition-predictions’s past year of commit activity
    0 MIT 1 5 0 Updated Jan 14, 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 26 CC0-1.0 24 16 1 Updated Jan 14, 2025
  • data_gathering Public

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

    USEPA/data_gathering’s past year of commit activity
    Java 0 2 0 0 Updated Jan 14, 2025
  • FrEDI Public

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

    USEPA/FrEDI’s past year of commit activity
    HTML 11 7 15 0 Updated Jan 14, 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 Jan 14, 2025
  • OW_Survey_Design_Tool Public

    This R Shiny app presents an easy-to-use user interface for the calculation of spatially balanced survey designs of point, linear, or areal resources (i.e. lakes, streams, wetlands and coastal resources) using the Generalized Random-Tessellation Stratified (GRTS) algorithm.

    USEPA/OW_Survey_Design_Tool’s past year of commit activity
    R 6 MIT 2 0 0 Updated Jan 14, 2025