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 NumberSiteCollect DateParameterToxin Conc. (µg/L)MDL (µg/L)Above State GuidelineAdditional InformationSample LocationEcology Tracking Number
Whatcom1Silver Lake11/14/2023Microcystin3.4300.150NoNoBoat LaunchSILVWHAT353_23_450
Whatcom1Silver Lake11/08/2023Anatoxin-a<MDL0.165NoNoBoat LaunchSILVWHAT353_23_445
Whatcom1Silver Lake11/08/2023Microcystin3.2700.150NoNoBoat LaunchSILVWHAT353_23_445
Whatcom1Silver Lake10/24/2023Microcystin19.6000.150YesViewFoot bridge SILVWHAT353_23_402
Whatcom1Silver Lake10/09/2023Anatoxin-a<MDL0.010NoNoFoot bridge SILVWHAT353_23_354
Whatcom1Silver Lake10/09/2023Microcystin17.8000.150YesNoFoot bridge SILVWHAT353_23_354
Whatcom1Silver Lake09/26/2023Anatoxin-a<MDL0.010NoNoFoot bridge SILVWHAT353_23_319
Whatcom1Silver Lake09/26/2023Microcystin10.0000.150YesNoFoot bridge SILVWHAT353_23_319
Whatcom1Silver Lake09/13/2023Anatoxin-a<MDL0.010NoNopedestrian bridgeSILVWHAT353_23_287
Whatcom1Silver Lake09/13/2023Microcystin0.9490.300NoNopedestrian bridgeSILVWHAT353_23_287
Whatcom1Silver Lake08/29/2023Anatoxin-a<MDL0.010NoNoFoot bridge SILVWHAT353_23_238
Whatcom1Silver Lake08/29/2023Microcystin1.5600.150NoNoFoot bridge SILVWHAT353_23_238
Whatcom1Silver Lake06/28/2023Anatoxin-a0.0130.010NoNo SILVWHAT353_23_060
Whatcom1Silver Lake06/28/2023Cylindrospermopsin<MDL0.025NoNo SILVWHAT353_23_060
Whatcom1Silver Lake06/28/2023Microcystin<MDL0.150NoNo SILVWHAT353_23_060
Whatcom1Silver Lake06/28/2023Saxitoxin<MDL0.020NoNo SILVWHAT353_23_060
Whatcom1Silver Lake10/19/2022Anatoxin-a<MDL0.010NoViewFoot bridge SILVWHAT353_22_419
Whatcom1Silver Lake10/19/2022Microcystin<MDL0.150NoViewFoot bridge SILVWHAT353_22_419
Whatcom1Silver Lake09/07/2022Anatoxin-a<MDL0.010NoViewBoat LaunchSILVWHAT353_22_298
Whatcom1Silver Lake09/07/2022Microcystin<MDL0.150NoViewBoat LaunchSILVWHAT353_22_298
Whatcom1Silver Lake11/05/2019Anatoxin-a<MDL0.165NoNo SILVWHAT353_19_446
Whatcom1Silver Lake11/05/2019Anatoxin-a<MDL0.165NoNo SILVWHAT353_19_447
Whatcom1Silver Lake11/05/2019Microcystin0.2390.150NoNo SILVWHAT353_19_446
Whatcom1Silver Lake11/05/2019Microcystin<MDL0.150NoNo SILVWHAT353_19_447

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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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