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

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 monitoring stations maintained by King County's Hydrologic Information Center. (use a blank search to see all stations).

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.

Search for King County well data by Well ID, Local Number, DoE Well Tag, or Parcel Number.

Welcome to the Lakes Data and Descriptions application! Use this application to search, view, and download water quality data resulting from volunteer monitoring efforts at more than 50 lakes in western King County. Choose a lake by location on the map below or by name on the list next to the map. For a synopsis of data and a discussion of long term trends among all small lakes of western King County, view the current regional assessment on the reports page.

Field observations performed by Hydrologic Information Center staff.

Profiles of temperature, conductivity, salinity, dissolved oxygen, chlorophyll fluorescence, beam transmission, and surface and subsurface PAR collected monthly to twice monthly on Lake Washington using a SeaBird CTD.

This is a raw and uncorrected dataset from a buoy located at the north end of Port Susan, near the mouth of the Stillaguamish River. The buoy is owned by the Stillaguamish Tribe of Indians and King County deploys an instrument on the buoy in partnership with the Tribe.

This data has not been reviewed or corrected in any manner. It should be used with extreme caution as uncorrected data may lead to misinterpretation. Anomalies may occur as a result of naturally occurring phenomena or instrument error. Corrected data will be available at a future date.

Special time considerations: Date and times have PST time zone applied. Time does not change with daylight savings.

Geography: The mooring is located at Latitude 48.17505 and Longitude -122.4197

***Disclaimer***
Marine mooring data provided by King County -- including meteorological and water quality data --are preliminary and have not received final approval. Most data are relayed by satellite or other telemetry and may have received little or no review. Inaccuracies in the data may be present because of instrument malfunctions or physical changes at the measurement site. Subsequent review may result in significant revisions to the data.

Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Information concerning the accuracy and appropriate uses of these data may be obtained emailing the Program Managers at MarineWQ@kingcounty.gov.

Data from King County rain gages

This dataset contains zooplankton samples collected from Puget Sound and analyzed by the Keister lab at the University of Washington. For more information see the King County marine zooplankton webpage.

This specific dataset summarizes zooplankton abundance and biomass data to the lowest practical taxonomic unit, and includes life history stage information (where available). An additional dataset summarizing total zooplankton abundance and biomass by sample is available HERE .

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

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