Hui O Ka Wai Ola Water Quality Data

Oxygen Nutrients Inorganic Carbon Particulate matter Sea Surface Salinity Sea Surface Temperature

The goal of the Hui O Ka Wai Ola (Association Of The Living Waters) citizen-science based water quality program is to increase the capacity for monitoring water quality in Maui (2016-) and Lanai (2023-) coastal waters by generating reliable data to assess long-term water-quality conditions and detect temporal trends. These data augment the data produced by the Hawaii Department of Health (DOH) Clean Water Branch (CWB) beach monitoring program.

Data are collected and analyzed every two or three weeks for physical and chemical parameters, including ocean salinity, pH, temperature, organic nutrients (nitrogen and phosphorous compounds), dissolved oxygen (DO), and total suspended sediment (TSS). Some water samples are immediately tested at mobile labs while others are processed for testing at University of Hawaii and/or other labs.

Data and resources

Data Subset Form

ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file…

ERDDAP Open
Make-A-Graph Form

ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data.

ERDDAP Open
PacIOOS Voyager (Google Maps API)

This URL provides a viewer and/or data access for this dataset.

HTML Open
Related URL

This URL provides additional information related to this dataset.

HTML Open
Unnamed resource

HTML Open
Unnamed resource

HTML Open
Research Organization Registry (ROR) Identifier

HTML Open
Unnamed resource

HTML Open
Unnamed resource

HTML Open
ERDDAP-tabledap

ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for…

ERDDAP Open
Unnamed resource

HTML Open
OPeNDAP

An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.

ERDDAP Open

Additional information

Temporal extent	2016-06-14 – 2026-06-30
Date (creation)	2016-06-14
Date (revision)	2016-06-14
Date (issued)	2018-08-23
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show