Repositories list

• pyaqsapi

  Public
  A python 3 package to retrieve ambient air monitoring data from the United States Environmental Protection Agency’s (US EPA) Air Quality System (AQS) Data Mart…

  environmental-monitoringpython-packagedatamart+ 5

  environmental-monitoringpython-packagedatamartaqsusepar03environmental-data-retrievalairmonitoring

  Python

  •

  MIT License

  •1111 forks•2929 stars•22 issues•66 pull requests•Updated Jul 27, 2026Jul 27, 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

  •2929 forks•7676 stars•129129 issues•66 pull requests•Updated Jul 27, 2026Jul 27, 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•4646 pull requests•Updated Jul 27, 2026Jul 27, 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 Jul 27, 2026Jul 27, 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 Jul 27, 2026Jul 27, 2026

• spmodel

  Public
  spmodel: Spatial Statistical Modeling and Prediction in R

  R

  •

  GNU General Public License v3.0

  •55 forks•2525 stars•00 issues•00 pull requests•Updated Jul 24, 2026Jul 24, 2026

• IntraCMS

  Public
  US EPA Intranet CMS

  phpdrupaloms

  phpdrupaloms

  CSS

  •

  MIT License

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

• GeoPlatform-Request-Tool

  Public
  Provisions EPA GeoPlatform (GPO) user accounts during emergency response events and projects

  r09

  r09

  Python

  •33 forks•66 stars•2626 issues•1010 pull requests•Updated Jul 24, 2026Jul 24, 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 Jul 24, 2026Jul 24, 2026

• EnviroAtlas_v4

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

  researchord

  researchord

  Svelte

  •

  MIT License

  •00 forks•55 stars•00 issues•11 pull request•Updated Jul 24, 2026Jul 24, 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 Jul 23, 2026Jul 23, 2026

• RAQSAPI

  Public
  A R extension to retrieve EPA Air Quality System Data via the AQS Data Mart API

  environmental-monitoringdatamartrprogramming+ 6

  environmental-monitoringdatamartrprogrammingrpackageaqsusepar03environmental-data-retrievalairmonitoring

  R

  •

  Other

  •1010 forks•2626 stars•22 issues•00 pull requests•Updated Jul 23, 2026Jul 23, 2026

• 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, …

  ow

  ow

  R

  •

  Creative Commons Zero v1.0 Universal

  •1010 forks•2323 stars•1717 issues•22 pull requests•Updated Jul 23, 2026Jul 23, 2026

• WMLCI

  Public
  Waste Management Life Cycle Inventory Model Assembler and Calculator

  Python

  •

  MIT License

  •11 fork•22 stars•00 issues•00 pull requests•Updated Jul 23, 2026Jul 23, 2026

• RCRAStarterKit

  Public
  An ArcGIS Pro toolbox that helps align RCRA data to the EPA RCRA data model.

  rcraolemorcr

  rcraolemorcr

  Python

  •

  MIT License

  •22 forks•22 stars•00 issues•00 pull requests•Updated Jul 23, 2026Jul 23, 2026

• 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 Form…

  CSS

  •

  Creative Commons Zero v1.0 Universal

  •22 forks•22 stars•00 issues•11 pull request•Updated Jul 23, 2026Jul 23, 2026

• WetQual-GUI

  Public archive
  DEPRECATED - This Graphical User Interfaces (GUI) was developed for the Wetland Water Quality Model, WetQual. The process-based WetQual model simula…

  guiresearchord

  guiresearchord

  Fortran

  •

  Other

  •77 forks•55 stars•11 issue•00 pull requests•Updated Jul 23, 2026Jul 23, 2026

• pyTRIM_EPA

  Public
  Python

  •00 forks•22 stars•00 issues•00 pull requests•Updated Jul 23, 2026Jul 23, 2026

• idose

  Public
  Inhalation dose coefficient calculator

  Fortran

  •

  MIT License

  •11 fork•11 star•00 issues•00 pull requests•Updated Jul 22, 2026Jul 22, 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 Jul 22, 2026Jul 22, 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•00 pull requests•Updated Jul 22, 2026Jul 22, 2026

• TADAShinyAnalyze

  Public
  ow

  ow

  R

  •

  Creative Commons Zero v1.0 Universal

  •11 fork•11 star•1212 issues•00 pull requests•Updated Jul 22, 2026Jul 22, 2026

• hawc

  Public
  Captures key data for health assessment of chemicals and other environmental hazards

  djangoresearchtoxicology+ 4

  djangoresearchtoxicologyepidemiologyrisk-assessmenthuman-health-assessmentord

  Python

  •

  Other

  •55 forks•1212 stars•00 issues•22 pull requests•Updated Jul 22, 2026Jul 22, 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 Jul 22, 2026Jul 22, 2026

• data_gathering

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

  Java

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

• ExpoKids

  Public
  Explore children’s health exposure to contaminants throughout their lives

  researchord

  researchord

  R

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

  •

  Creative Commons Zero v1.0 Universal

  •1313 forks•3939 stars•1212 issues•00 pull requests•Updated Jul 21, 2026Jul 21, 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 Jul 21, 2026Jul 21, 2026

• ccte-sbom-generator-java

  Public
  00 forks•00 stars•00 issues•00 pull requests•Updated Jul 21, 2026Jul 21, 2026