Surface Water - Freshwater Harmful Algal Blooms

Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Water Resources Control Board's data system for data and information voluntarily reported to the agency. Bloom reports are voluntary reports submitted by the public or organization to identify a POTENTIAL HAB for evaluation. Bloom Reports may or may not include a report that is confirmed to be a HAB, regardless, all bloom reports are published. Due to the voluntary basis of information and data included in the database, data and information may include: waterbody name and location, potential algal bloom location and observed characteristics, observed field observations and/or analytical sampling results, waterbody and/or land management, general information, recommended advisory status (if any), and updates regarding bloom status. Refer to Data Dictionary and Data Disclaimer for additional information about this dataset. Please visit the Water Boards FHABS web site for more information and data visualizations https://mywaterquality.ca.gov/habs/index.html.

Data and Resources

Additional Info

Field Value
Public Access Level Public
Rights No Restrictions on Public Use
Program Contact Name Multiple
Program Contact Email [email protected]
Author California State Water Resources Control Board
Homepage URL https://data.ca.gov/dataset/surface-water-freshwater-harmful-algal-blooms
Frequency Irregular
Granularity One record per report of potential harmful bloom event. A report may be updated, every update generates an additional record related to a individual report.
Last Updated March 15, 2024, 23:55 (UTC)
Created August 10, 2019, 03:26 (UTC)