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 toxicalgae 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.

Toxin:
CountyWRIA NumberSiteCollect DateParameterToxin Conc. (µg/L)MDL (µg/L)Above State GuidelineAdditional InformationSample LocationEcology Tracking Number
Franklin34Lyons Ferry State Park10/29/2024Microcystin2.3900.300NoNo LYONFRAN613_24-445
Franklin34Lyons Ferry State Park10/22/2024Microcystin6.5500.300NoNo LYONFRAN613_24-422
Franklin34Lyons Ferry State Park10/15/2024Anatoxin-a<MDL0.010NoNoprimative boat launchLYONFRAN613_24_409
Franklin34Lyons Ferry State Park10/15/2024Microcystin140.0000.300YesNoprimative boat launchLYONFRAN613_24_409
Franklin34Lyons Ferry State Park10/08/2024Anatoxin-a<MDL0.010NoNoboat lauch areaLYONFRAN613_24_385
Franklin34Lyons Ferry State Park10/08/2024Microcystin28.6000.300YesNoboat lauch areaLYONFRAN613_24_385
Franklin34Lyons Ferry State Park10/10/2023Anatoxin-a<MDL0.010NoNoboat lauch areaLYONFRAN613_23_366
Franklin34Lyons Ferry State Park10/10/2023Cylindrospermopsin<MDL0.025NoNoboat lauch areaLYONFRAN613_23_366
Franklin34Lyons Ferry State Park10/10/2023Microcystin<MDL0.150NoNoboat lauch areaLYONFRAN613_23_366
Franklin34Lyons Ferry State Park10/10/2023Saxitoxin<MDL0.022NoNoboat lauch areaLYONFRAN613_23_366
Franklin34Lyons Ferry State Park10/06/2021Anatoxin-a<MDL0.010NoView LYONFRAN613_21_481
Franklin34Lyons Ferry State Park10/06/2021Cylindrospermopsin<MDL0.025NoView LYONFRAN613_21_481
Franklin34Lyons Ferry State Park10/06/2021Microcystin<MDL0.150NoView LYONFRAN613_21_481
Franklin34Lyons Ferry State Park10/06/2021Saxitoxin<MDL0.020NoView LYONFRAN613_21_481

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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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