Data from King County's Monitoring Stations in the Puget Sound

We are committed to monitoring the water quality of the County's lakes to ensure their continued health, as well as the health of the public who utilize the lake's many resources. We invite you to learn more about our program by looking through the pages listed on the left. This site contains detailed graphs of water quality data, photographs of water sampling, and general information about the water quality of King County's lakes.

Interactive map of current freshwater swimming beach sampling stations in King County, and downloadable data.

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.

Prior to downloading data, please download the README file.

This dataset contains chemistry results from marine sediment sample collected from offshore (subtidal) and beaches (intertidal) from Puget Sound. It can be filtered by "Site Type".

See the Sediment Monitoring Program Website for more information about the program and the Science Section Documents Database to see sampling and analysis plans and reports related to this dataset.

This is a raw and uncorrected dataset from the mooring at the Coupeville Wharf. 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. These anomalies occur as a result of naturally occurring phenomena. Corrected data will be available at a future date.

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

Geography: The mooring is located at Latitude 48.2228253 and Longitude -122.6884251

***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.

The "What do I do with...?" site (http://your.kingcounty.gov/solidwaste/wdidw/index.asp) provides King County citizens with recycling and proper disposal options for over 100 products and materials. The site lists over 400 businesses (mostly local) that accept products and materials for recycling or proper disposal. Business details include location (with mapping), contact information, hours of operation, restrictions, fees and more. The goal of "What do I do with...?" is to reduce the volume of reusable or recyclable items being added to the waste-stream, thereby reducing the environmental impact of those items while extending the lifespan of our landfills.

More information about King County Flood warnings and alerts can be found at https://www.kingcounty.gov/services/environment/water-and-land/flooding/warning-system/about.aspx