Repositories list

• IntraCMS

  Public
  US EPA Intranet CMS

  phpdrupaloms

  phpdrupaloms

  CSS

  •

  MIT License

  •33 forks•88 stars•00 issues•11 pull request•Updated Aug 24, 2026Aug 24, 2026

• ccte-api-docs

  Public
  US EPA's CTX APIs Documentation

  apiresearchctx+ 3

  apiresearchctxordcctecomptox

  HTML

  •11 fork•00 stars•00 issues•00 pull requests•Updated Aug 24, 2026Aug 24, 2026

• provisional_habs

  Public
  Repository holding data from Harmful Algal Bloom (HAB) monitoring conducted by United States Environmental Protection Agency, Office of Research and Development…

  Creative Commons Zero v1.0 Universal

  •22 forks•33 stars•00 issues•00 pull requests•Updated Aug 24, 2026Aug 24, 2026

• code-json-generator

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

  oms

  oms

  JavaScript

  •

  MIT License

  •99 forks•22 stars•00 issues•00 pull requests•Updated Aug 24, 2026Aug 24, 2026

• 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 lake…

  ow

  ow

  R

  •

  Creative Commons Zero v1.0 Universal

  •2828 forks•7676 stars•148148 issues•77 pull requests•Updated Aug 24, 2026Aug 24, 2026

• EnviroAtlas_DB

  Public
  Repo for storing Enviroatlas DB

  JavaScript

  •00 forks•11 star•00 issues•11 pull request•Updated Aug 22, 2026Aug 22, 2026

• dmap-RShade

  Public
  HTML

  •

  MIT License

  •22 forks•00 stars•00 issues•00 pull requests•Updated Aug 22, 2026Aug 22, 2026

• dmapSMP

  Public
  HTML

  •

  MIT License

  •22 forks•00 stars•00 issues•00 pull requests•Updated Aug 22, 2026Aug 22, 2026

• BMDS

  Public
  U.S EPA Benchmark Dose Modeling Software (BMDS)

  researchtoxicologyrisk-assessment+ 3

  researchtoxicologyrisk-assessmentdose-response-modelingorddose-response

  C++

  •

  MIT License

  •77 forks•1414 stars•22 issues•33 pull requests•Updated Aug 21, 2026Aug 21, 2026

• Pesticide-Label-Data-Entry-Tool

  Public
  R Shiny application for enabling easier data entry of pesticide label information.

  R

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• ccte-api-exposure

  Public
  US EPA's CTX Exposure API, available at: https://comptox.epa.gov/ctx-api/docs/exposure.html

  apiresearchctx+ 4

  apiresearchctxordcctecomptoxexpocast

  Java

  •

  MIT License

  •11 fork•11 star•55 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• ccte-api-bioactivity

  Public
  US EPA's CTX Bioactivity API, available at: https://comptox.epa.gov/ctx-api/docs/bioactivity.html

  apiresearchctx+ 4

  apiresearchctxordcctecomptoxtoxcast

  Java

  •

  MIT License

  •11 fork•11 star•66 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• ccte-api-hazard

  Public
  US EPA's CTX Hazard API, available at: https://comptox.epa.gov/ctx-api/docs/hazard.html

  apiresearchhazard+ 4

  apiresearchhazardctxordcctecomptox

  Java

  •

  MIT License

  •11 fork•11 star•44 issues•11 pull request•Updated Aug 21, 2026Aug 21, 2026

• ccte-api-chemical

  Public
  US EPA's CTX Chemical API, available at: https://comptox.epa.gov/ctx-api/docs/chemical.html

  apiresearchctx+ 3

  apiresearchctxordcctecomptox

  Java

  •

  MIT License

  •33 forks•77 stars•2727 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• TMDLDash

  Public
  The ExpertQueryTMDLDashboard is an R Shiny application designed to summarize and count TMDLS based on user inputs to filters on various fields including state, …

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• BMDS-UI

  Public
  U.S. EPA Benchmark Dose Modeling Software User Interface (BMDS Desktop and BMDS Online)

  researchtoxicologyord+ 2

  researchtoxicologyorddose-responserisk-assesment

  CSS

  •

  MIT License

  •55 forks•55 stars•00 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• pyTRIM_EPA

  Public
  Python

  •00 forks•22 stars•00 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• rExpertQuery

  Public
  An R package designed for retrieving ATTAINS data efficiently via Expert Query web services.

  ow

  ow

  R

  •

  Creative Commons Zero v1.0 Universal

  •55 forks•88 stars•33 issues•00 pull requests•Updated Aug 21, 2026Aug 21, 2026

• NEP-Water-Quality

  Public
  Code used for filtering, QAing, and visualizing monitoring data from NEP sites for ocean acidification and water quality analysis

  R

  •33 forks•22 stars•00 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• 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, …

  R

  •

  Creative Commons Zero v1.0 Universal

  •11 fork•11 star•1414 issues•33 pull requests•Updated Aug 20, 2026Aug 20, 2026

• Water-Infrastructure-and-Capacity-Assessment-Tool

  Public
  R

  •

  MIT License

  •00 forks•11 star•00 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• EnviroAtlas_v4

  Public
  EnviroAtlas migration to JS4. Easy to use, interactive mapping application to access maps showing environmental data

  researchord

  researchord

  Svelte

  •

  MIT License

  •11 fork•66 stars•00 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• pf_python_modelbuilding

  Public
  Python based code to create qsar models for WebTEST2.0 platform

  Python

  •22 forks•22 stars•00 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• TADAShinyAnalyze

  Public
  ow

  ow

  R

  •

  Creative Commons Zero v1.0 Universal

  •11 fork•11 star•1212 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• TADAShinyJoinToAU

  Public
  R

  •

  Creative Commons Zero v1.0 Universal

  •11 fork•11 star•1010 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• govchat

  Public
  Customized GenAI chatbot interface for EPA employees

  nextjsomsgenai+ 1

  nextjsomsgenaigenai-chatbot

  TypeScript

  •

  MIT License

  •9.4k9.4k forks•66 stars•00 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• 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 …

  owstreamcat

  owstreamcat

  HTML

  •

  MIT License

  •1313 forks•4040 stars•1313 issues•00 pull requests•Updated Aug 20, 2026Aug 20, 2026

• webcms

  Public
  Content management system for EPA's flagship website, www.epa.gov

  awsterraformoms+ 1

  awsterraformomsdrupal-10

  JavaScript

  •88 forks•1313 stars•00 issues•2828 pull requests•Updated Aug 20, 2026Aug 20, 2026

• pybeepop

  Public
  EPA's Python wrapper for the EPA/USDA honey bee colony model BeePop+

  Python

  •

  MIT License

  •55 forks•99 stars•00 issues•00 pull requests•Updated Aug 19, 2026Aug 19, 2026

• ELG-Search-Tools

  Public
  ELG Search Tools

  ow

  ow

  HTML

  •

  Creative Commons Zero v1.0 Universal

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 19, 2026Aug 19, 2026