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King County Marine Moorings

If you have question on this site, please contact Wendy Eash-Loucks
Automated, high-frequency, water quality data collection systems allow continuous measurements of physical, chemical, and biological water quality parameters as well as meteorological parameters. The data generated by these systems allow users to characterize temporal and spatial variability for multiple parameters over numerous scales (e.g., daily, seasonal, annual, inter-annual). The data can also be used to establish baseline conditions, populate numerical models, and provide data for management decisions. Advances in automated sampling and sensor technology make automated data collection an integral part of water quality monitoring programs. In addition, automated data collection systems create collaborative opportunities for multiple entities working together to characterize a large waterbody.

The high-quality data collected by King County through its routine marine monitoring program have provided insight into natural variability and long-term trends in Puget Sound water quality. The frequency of monthly sampling, however, does not adequately capture the high variability in, and the relationships between, marine water quality parameters. King County partnered with the Seattle Aquarium in November 2007 to deploy its first high-frequency, real-time, marine water quality data collection system in Elliott Bay. Since that time, three additional systems have been deployed: a piling-mounted system at Dockton Park in outer Quartermaster Harbor; a dock-mounted system in Quartermaster at the Yacht Club, our monitoring partner, and a buoy mounted system off of Point Williams in Central Puget Sound.