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    663 repositories

    • code-json-generator

      Public
      Automation that scrapes USEPA github and provides that metadata for code.gov
      oms
      JavaScript
      •
      MIT License
      •9•1•0•0•Updated Dec 21, 2025Dec 21, 2025

    • campdRShinyDataSource

      Public
      R
      •
      MIT License
      •2•3•0•0•Updated Dec 21, 2025Dec 21, 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.
      ow
      R
      •
      Creative Commons Zero v1.0 Universal
      •23•61•103•4•Updated Dec 21, 2025Dec 21, 2025

    • 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.
      ow
      R
      •
      Creative Commons Zero v1.0 Universal
      •8•18•39•2•Updated Dec 20, 2025Dec 20, 2025

    • NEP-Water-Quality

      Public
      Code used for filtering, QAing, and visualizing monitoring data from NEP sites for ocean acidification and water quality analysis
      R
      •3•1•0•0•Updated Dec 20, 2025Dec 20, 2025

    • TADACommunityHub

      Public
      A collaborative hub where TADA users share and maintain information for custom workflows (e.g., state, tribal, territory, EPA, or other entities). For example, it includes user-contributed criteria and methodologies templates to support reproducible and efficient analyses.
      R
      •
      Creative Commons Zero v1.0 Universal
      •0•1•1•1•Updated Dec 19, 2025Dec 19, 2025

    • egrid

      Public
      Emissions & Generation Resource Integrated Database (eGRID)
      oaregrid
      R
      •
      MIT License
      •9•25•9•0•Updated Dec 19, 2025Dec 19, 2025

    • emanifest-workflow

      Public
      Vue
      •0•1•0•0•Updated Dec 19, 2025Dec 19, 2025

    • hwip

      Public
      Hazardous Waste Information Platform
      2•3•0•1•Updated Dec 19, 2025Dec 19, 2025

    • webcms

      Public
      Content management system for EPA's flagship website, www.epa.gov
      awsterraformomsdrupal-10
      JavaScript
      •9•12•0•25•Updated Dec 19, 2025Dec 19, 2025

    • SuRGE

      Public
      Code to reproduce the data files described in "Summertime methane and carbon dioxide emission rates and associated variables from a national-scale survey of 146 reservoirs in the United States" to be submitted to Limnology and Oceanography Letters in July 2025. The project was led by the US EPA's Office of Research and Development.
      ord
      HTML
      •
      MIT License
      •1•0•7•0•Updated Dec 19, 2025Dec 19, 2025

    • FTT-Posit

      Public
      HTML
      •0•0•0•0•Updated Dec 18, 2025Dec 18, 2025

    • IntraCMS

      Public
      US EPA Intranet CMS
      phpdrupaloms
      CSS
      •
      MIT License
      •3•6•0•0•Updated Dec 18, 2025Dec 18, 2025

    • FTT-R

      Public
      HTML
      •0•1•7•0•Updated Dec 18, 2025Dec 18, 2025

    • Air-Sensor-Network-Analysis-Tool-Public-

      Public
      A tool to understand air sensor performance compared to nearby air monitors and to understand local air quality.
      R
      •
      MIT License
      •3•7•0•0•Updated Dec 18, 2025Dec 18, 2025

    • BMDS

      Public
      U.S EPA Benchmark Dose Modeling Software (BMDS)
      toxicologyrisk-assessmentdose-response-modelingorddose-response
      C++
      •
      MIT License
      •6•6•2•2•Updated Dec 18, 2025Dec 18, 2025

    • ccte-api-chemical

      Public
      US EPA's CTX Chemical API, available at: https://comptox.epa.gov/ctx-api/docs/chemical.html
      apictxordcctecomptox
      Java
      •
      MIT License
      •2•3•24•1•Updated Dec 18, 2025Dec 18, 2025

    • mywaterway

      Public
      How's My Waterway provides information about the conditions streams, lakes and other waters anywhere in the U.S.
      ow
      TypeScript
      •
      Creative Commons Zero v1.0 Universal
      •12•20•0•0•Updated Dec 18, 2025Dec 18, 2025

    • CHAPPIE

      Public
      Community Hazard-scape and Amenity Placement for Providing Improved Endpoints
      Jupyter Notebook
      •
      MIT License
      •0•1•43•4•Updated Dec 17, 2025Dec 17, 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.
      streamcat
      R
      •
      Creative Commons Zero v1.0 Universal
      •10•37•11•0•Updated Dec 17, 2025Dec 17, 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).
      CSS
      •
      Creative Commons Zero v1.0 Universal
      •2•2•0•1•Updated Dec 17, 2025Dec 17, 2025

    • Trade-off_Tool_for_Sampling

      Public
      Helps develop sampling strategy for field collection of chemical and radiological contaminiation
      oar
      TypeScript
      •
      Creative Commons Zero v1.0 Universal
      •4•2•0•0•Updated Dec 17, 2025Dec 17, 2025

    • spmodel

      Public
      spmodel: Spatial Statistical Modeling and Prediction in R
      R
      •
      GNU General Public License v3.0
      •4•18•0•0•Updated Dec 17, 2025Dec 17, 2025

    • ctxR

      Public
      US EPA's ctxR: Utilities for Interacting with the CTX APIs in R without prior API knowledge https://www.epa.gov/comptox-tools/computational-toxicology-and-exposure-apis
      apictxordcctecomptox
      R
      •
      GNU General Public License v3.0
      •9•17•7•0•Updated Dec 16, 2025Dec 16, 2025

    • ccte-api-hazard

      Public
      US EPA's CTX Hazard API, available at: https://comptox.epa.gov/ctx-api/docs/hazard.html
      apihazardctxordcctecomptox
      Java
      •
      MIT License
      •1•1•5•0•Updated Dec 16, 2025Dec 16, 2025

    • pf_python_modelbuilding

      Public
      Python based code to create qsar models for WebTEST2.0 platform
      Python
      •2•1•0•0•Updated Dec 16, 2025Dec 16, 2025

    • invitrotkstats_dataproc

      Public
      Data processing scripts for manuscript datasets using the invitroTKstats R package.
      HTML
      •0•0•1•0•Updated Dec 15, 2025Dec 15, 2025

    • ccte-api-bioactivity

      Public
      US EPA's CTX Bioactivity API, available at: https://comptox.epa.gov/ctx-api/docs/bioactivity.html
      apictxordcctecomptoxtoxcast
      Java
      •
      MIT License
      •1•1•7•0•Updated Dec 15, 2025Dec 15, 2025

    • ccte-api-exposure

      Public
      US EPA's CTX Exposure API, available at: https://comptox.epa.gov/ctx-api/docs/exposure.html
      apictxordcctecomptoxexpocast
      Java
      •
      MIT License
      •1•0•4•0•Updated Dec 15, 2025Dec 15, 2025

    • EnviroAtlas_v4

      Public
      EnvrioAtlas migration to JS4. Easy to use, interactive mapping application to access hundreds of maps showing environmental data
      ord
      Svelte
      •
      MIT License
      •0•1•0•0•Updated Dec 15, 2025Dec 15, 2025