Prior to downloading data, please download the README file.

This dataset contains water quality samples collected from Puget Sound, lakes, and streams in the region which can be filtered by "Site Type" and "Area".

To see where water quality samples are collected, see the WLRD Water Quality Collection Sites dataset.

Search for hydrologic data across sites, by a specified parameter.

This dataset contains phytoplankton biovolume data from Puget Sound. For species level presence/absence data, please contact MarineWQ@kingcounty.gov . Please download the ReadMe file prior to using the data. For phytoplankton photos, go to https://green2.kingcounty.gov/marine/photo. For more information see the King County marine phytoplankton webpage.

This specific dataset summarizes phytoplankton biovolume data to the lowest practical taxonomic unit. Additional datasets summarize abundance and biovolume data by:

• Sample by Generic Functional Group

• Sample by Specific Functional Group

For locator information, see the WLRD Water Quality Collection Sites dataset.

For corresponding water quality data matched by Grab ID see the Water Quality dataset.

This dataset contains phytoplankton samples collected from Puget Sound and analyzed using a particle imaging analyzer (FlowCAM®). For more information see the King County marine phytoplankton webpage.

This specific dataset summarizes phytoplankton abundance and biovolume data by functional group. Additional datasets summarize abundance and biovolume data by:

• Size Class (all size classes in a sample in one line)

• Sample By Size Class (each sample size class in one line)

• Sample by Generic Functional Group

• Sample by Taxonomic Group

For locator information, see the WLRD Water Quality Collection Sites dataset.

For corresponding water quality data matched by Grab ID see the Water Quality dataset.

This dataset contains in situ water column data at offshore monitoring stations using a Conductivity Temperature Depth (CTD) sensor for the Whidbey Basin. A CTD is a multi-sensor array that measures dissolved oxygen, salinity, temperature, density (calculated), nitrate + nitrite, and fluorescence (as a measure of chlorophyll).

This dataset contains phytoplankton samples collected from Puget Sound and analyzed using a particle imaging analyzer (FlowCAM®). For more information see the King County marine phytoplankton webpage.

This specific dataset summarizes phytoplankton abundance and biovolume data to the lowest practical taxonomic unit. Additional datasets summarize abundance and biovolume data by:

• Size Class (all size classes in a sample in one line)

• Sample By Size Class (each sample size class in one line)

• Sample by Specific Functional Group

• Sample by Taxonomic Group

For locator information, see the WLRD Water Quality Collection Sites dataset.

For corresponding water quality data matched by Grab ID see the Water Quality dataset.

The King County Groundwater Protection Program maintains a database of groundwater wells, water quality and water level sampling data. Users may search the database using Quick or Advanced Search OR use King County Groundwater iMap map set.

The viewer provides a searchable map interface for locating groundwater well data.

Search for Hydrology data by parameter, for a specified site.