Detailed search for your lake

This database contains the most current toxicity data available. All instances of values above the recreational guidelines are kept as up to date as possible, but values below the guidelines may be somewhat delayed in entry.Since there is a lag time from the date of sample to the date of analysis, be sure to check the sample date when looking at data or before you use the lake. Remember to use caution and avoid scums. "When in doubt, stay out!"

Your local jurisdiction may have more specific information about your lake. Questions? Contact Lizbeth Seebacher at Department of Ecology.

If a lake is not listed, it has not been tested for toxic algae through the Ecology program.

The pins on the map represent the center of small lakes, regardless of where the sample was taken. To find more precise location information, download the toxin data and click the "view scum info" link. That is where specific sampling location information will be if it was provided. On larger lakes, (such as Lake Washington, Moses Lake and Potholes) pins represent the location of the sample if provided.

CountyWRIA NumberSiteLab Sample NumberCollect DateParameterToxin Conc. (µg/L)MDL (µg/L)Above State GuidelineAdditional Information
King9Lake FenwickL73655-111/04/2019Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL73655-111/04/2019Microcystin0.5000.150NoNo
King9Lake FenwickL73603-110/28/2019Microcystin0.5000.150NoNo
King9Lake FenwickL73556-210/21/2019Anatoxin-a<MDL0.010NoView
King9Lake FenwickL73556-210/21/2019Microcystin3.2500.150NoView
King9Lake FenwickL73471-310/09/2019Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL73471-310/09/2019Microcystin7.3000.150YesNo
King9Lake FenwickL73429-410/02/2019Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL73429-410/02/2019Microcystin49.0000.150YesNo
King9Lake FenwickL73356-209/25/2019Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL73356-209/25/2019Microcystin1.8800.150NoNo
King9Lake FenwickL73278-509/12/2019Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL73278-509/12/2019Microcystin3.8700.150NoNo
King9Lake FenwickL71351-111/14/2018Microcystin0.2320.150NoView
King9Lake FenwickL71317-111/05/2018Microcystin3.4900.150NoView
King9Lake FenwickL71272-110/26/2018Anatoxin-a<MDL0.010NoView
King9Lake FenwickL71272-110/26/2018Microcystin32.0000.150YesView
King9Lake FenwickL70825-508/27/2018Anatoxin-a0.0860.010NoView
King9Lake FenwickL70825-508/27/2018Microcystin2.3700.150NoView
King9Lake FenwickL70773-808/20/2018Anatoxin-a<MDL0.010NoView
King9Lake FenwickL70773-808/20/2018Microcystin3.0000.150NoView
King9Lake FenwickL70722-408/13/2018Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL70722-408/13/2018Cylindrospermopsin<MDL0.025NoNo
King9Lake FenwickL70722-408/13/2018Microcystin104.0000.150YesNo
King9Lake FenwickL70722-408/13/2018Saxitoxin<MDL0.020NoNo
King9Lake FenwickL68838-110/16/2017Anatoxin-a<MDL0.010NoNo
King9Lake FenwickL68838-110/16/2017Microcystin3.5200.150NoNo

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As of 6/26/2018 the format of the toxin and phytoplankton export has changed. A unique identification number has been added to each site.

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