We encourage you to read this project's CONTRIBUTING policy, its LICENSE, and its README (you are here).

TADA is a draft R package being developed to help States, Tribes, Tribal Nations, Pueblos, and other stakeholders compile and evaluate Water Quality Portal (WQP) data collected from surface water monitoring sites on streams and lakes more efficiently. TADA is also being used as building block to support development of the TADA R Shiny application.

We encourage stakeholders to begin testing the functionality and providing feedback. Moreover, open source software provides an avenue for water quality program owners to develop and share code, and we welcome your contributions! More information on how to contribute can be found in the CONTRIBUTING.md file. This file explains how users can contribute to the R package, for example by submitting an issue, requesting a change, or submitting an inquiry. We hope to build a collaborative community dedicated to this effort where contributors can discover, share and build the package functionality over time.

In 2012, the WQP was deployed by the U.S. Geological Survey (USGS), the U.S. Environmental Protection Agency (USEPA), and the National Water Quality Monitoring Council to combine and serve water-quality data from numerous sources in a standardized format. The WQP holds over 420 million water quality sample results from over 1000 federal, state, tribal and other partners, and is the nation's largest source for single point of access for water-quality data. Participating organizations submit their data to the WQP using the EPA's Water Quality Exchange (WQX), a framework designed to map their data holdings to a common data structure.

You can install and load the most recent version of the TADA R Package from GitHub by running:

library (remotes)
remotes::install_github("USEPA/TADA")

If you have any questions, please reach out to Cristina Mullin at [email protected]

This United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis and the user assumes responsibility for its use. EPA has relinquished control of the information and no longer has responsibility to protect the integrity, confidentiality, or availability of the information. Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA. The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.