Harmonize WQ

Spec sheet

Purpose

Harmonize WQ is a water-quality-specific framework for standardizing, cleaning, and wrangling Water Quality Portal data into more analysis-ready formats.Read 4 Oct 2026 · usepa.github.io

Cleaning and wrangling

The example workflow includes datetime and sample-depth cleaning, splitting characteristic-specific columns, and collapsing results by sample organization, activity, location, and datetime.Read 4 Oct 2026 · usepa.github.io

Data shaping

It can transform results from long format to wide format.Read 4 Oct 2026 · usepa.github.io

Disclaimer

The repository says EPA GitHub project code is provided as is and users assume responsibility for its use; EPA says it no longer has responsibility for protecting the information's integrity, confidentiality, or availability.Read 4 Oct 2026 · github.com

Error handling

It helps resolve data errors using transparent assumptions.Read 4 Oct 2026 · usepa.github.io

Example data source

The documented workflow queries the Water Quality Portal using the Python dataretrieval package.Read 4 Oct 2026 · usepa.github.io

Installation

The documentation gives pip installation commands for the published package and the latest development version from GitHub.Read 4 Oct 2026 · usepa.github.io

Method differences

It helps identify differences in sampling or analytic methods.Read 4 Oct 2026 · usepa.github.io

Standardized example outputs

The example workflow standardizes depth and Secchi values to meters and temperature to degrees Celsius, and includes quality-issue columns.Read 4 Oct 2026 · usepa.github.io

Support and development

The repository says harmonize_wq is under development and directs users to report bugs and enhancement ideas through its issue tracker.Read 4 Oct 2026 · github.com

Target users

The package is intended to help people analyzing Water Quality Portal data, while domain experts decide which data meet their comparability standards and acceptance thresholds.Read 4 Oct 2026 · usepa.github.io

Tutorials

The documentation links simple and detailed tutorial notebooks for Pensacola Bay, Tampa Bay, Cape Cod, and Gulf of Mexico estuaries.Read 4 Oct 2026 · usepa.github.io

Unit and basis handling

It helps identify differences in data units, including speciation and basis.Read 4 Oct 2026 · usepa.github.io

Where Specifiction places it

• Data Cleansing Software#25 of 316.5