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Lake Washington and Lake Sammamish Data Image Water & Land Resources
North Lake Sammamish RUSS Buoy Data

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Water Quality Buoy Location

Lake Sammamish North Buoy Location
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Lake Washington

Today's Water Column Data for North Sammamish
Read graphs of lake temperature, pH, conductivity, dissolved oxygen (mg/L and % saturation), and chlorophyll-a at various lake depths, and how to interpret the graphs.

Water Column Graphs over Time
Learn how water quality has changed over the last several months at the North Lake Washington Buoy, and identify when select conditions were unhealthy or even lethal for salmon and trout :

Go to the Lake Sammamish Routine Monitoring Program to look up additional water quality sampling data from other points on Lake Sammamish. Includes historical water quality data.

Please note: These data are provisional and are presented for demonstration purposes only.


For questions about information on this page, please contact Jonathon Frodge, Limnologist, or Jeff Burkey, Hydrologist.

For questions about the
Water and Land Resources Web site, please contact Fred Bentler, Webmaster.


Department of Natural Resources
Water and Land Resources Division

Updated: Sept. 29, 2005

 Related Information:

Lake Topics

Sammamish Watershed page


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