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
Pierce11Tanwax Lake10/15/2024Anatoxin-a<MDL0.010NoNoBoat Launch - publicTANWPIER050_24_412
Pierce11Tanwax Lake10/15/2024Microcystin11.3000.300YesNoBoat Launch - publicTANWPIER050_24_412
Pierce11Tanwax Lake07/23/2024Anatoxin-a<MDL0.010NoNoCamp Lakeview DockTANWPIER050_24_101
Pierce11Tanwax Lake07/23/2024Cylindrospermopsin<MDL0.025NoNoCamp Lakeview DockTANWPIER050_24_101
Pierce11Tanwax Lake07/23/2024Microcystin<MDL0.300NoNoCamp Lakeview DockTANWPIER050_24_101
Pierce11Tanwax Lake07/23/2024Saxitoxin<MDL0.022NoNoCamp Lakeview DockTANWPIER050_24_101
Pierce11Tanwax Lake07/16/2024Anatoxin-a<MDL0.010NoNoCamp LakeviewTANWPIER050_24_080
Pierce11Tanwax Lake07/16/2024Microcystin<MDL0.150NoNoCamp LakeviewTANWPIER050_24_080
Pierce11Tanwax Lake10/23/2023Anatoxin-a<MDL0.010NoViewBoat launchTANWPIER050_23_399
Pierce11Tanwax Lake10/23/2023Microcystin<MDL0.150NoViewBoat launchTANWPIER050_23_399
Pierce11Tanwax Lake06/27/2022Anatoxin-a<MDL0.010NoViewCamp LakeviewTANWPIER050_22_067
Pierce11Tanwax Lake06/27/2022Cylindrospermopsin<MDL0.025NoViewCamp LakeviewTANWPIER050_22_067
Pierce11Tanwax Lake06/27/2022Microcystin0.1710.150NoViewCamp LakeviewTANWPIER050_22_067
Pierce11Tanwax Lake06/27/2022Saxitoxin<MDL0.020NoViewCamp LakeviewTANWPIER050_22_067
Pierce11Tanwax Lake03/28/2022Anatoxin-a<MDL0.020NoView TANWPIER050
Pierce11Tanwax Lake03/28/2022Microcystin0.3940.150NoView TANWPIER050
Pierce11Tanwax Lake10/04/2021Anatoxin-a<MDL0.010NoViewBoat launchTANWPIER050_21_470
Pierce11Tanwax Lake10/04/2021Microcystin11.6000.150YesViewBoat launchTANWPIER050_21_470
Pierce11Tanwax Lake08/09/2021Anatoxin-a<MDL0.010NoView33728 Thomas Rd ETANWPIER050_21_219
Pierce11Tanwax Lake08/09/2021Microcystin0.6560.150NoView33728 Thomas Rd ETANWPIER050_21_219
Pierce11Tanwax Lake08/02/2021Anatoxin-a<MDL0.010NoViewCamp LakeviewTANWPIER050_21_192
Pierce11Tanwax Lake08/02/2021Microcystin0.2370.150NoViewCamp LakeviewTANWPIER050_21_192
Pierce11Tanwax Lake07/28/2021Anatoxin-a<MDL0.010NoViewCamp LakeviewTANWPIER050_21_173
Pierce11Tanwax Lake07/28/2021Microcystin0.5690.150NoViewCamp LakeviewTANWPIER050_21_173
Pierce11Tanwax Lake07/19/2021Anatoxin-a<MDL0.010NoViewCamp Lakeview Boat LaunchTANWPIER050_21_141
Pierce11Tanwax Lake07/19/2021Microcystin<MDL0.150NoViewCamp Lakeview Boat LaunchTANWPIER050_21_141
Pierce11Tanwax Lake07/06/2021Anatoxin-a<MDL0.010NoViewCamp LakeviewTANWPIER050_21_112
Pierce11Tanwax Lake07/06/2021Microcystin<MDL0.150NoViewCamp LakeviewTANWPIER050_21_112
Pierce11Tanwax Lake06/01/2021Microcystin<MDL0.150NoViewCamp Lakeview Boat LaunchTANWPIER050_21_058
Pierce11Tanwax Lake09/28/2020Anatoxin-a<MDL0.010NoViewCamp LakeviewTANWPIER050_20_433
Pierce11Tanwax Lake09/28/2020Microcystin0.2650.150NoViewCamp LakeviewTANWPIER050_20_433
Pierce11Tanwax Lake10/30/2019Anatoxin-a<MDL0.010NoNo TANWPIER050_19_440
Pierce11Tanwax Lake10/30/2019Microcystin2.0000.150NoNo TANWPIER050_19_440
Pierce11Tanwax Lake10/14/2019Anatoxin-a<MDL0.010NoNo TANWPIER050_19_404
Pierce11Tanwax Lake10/14/2019Microcystin4.4600.150NoNo TANWPIER050_19_404
Pierce11Tanwax Lake07/09/2019Anatoxin-a0.0150.010NoView TANWPIER050_19_077
Pierce11Tanwax Lake07/09/2019Microcystin0.6510.150NoView TANWPIER050_19_077
Pierce11Tanwax Lake08/10/2016Anatoxin-a<MDL0.010NoView TANWPIER050_16_143
Pierce11Tanwax Lake08/10/2016Microcystin0.5270.200NoView TANWPIER050_16_143
Pierce11Tanwax Lake09/28/2015Microcystin<MDL0.160NoNo TANWPIER050_15_425
Pierce11Tanwax Lake10/21/2014Anatoxin-a<MDL0.010NoView TANWPIER14_310
Pierce11Tanwax Lake10/21/2014Microcystin3.6300.160NoView TANWPIER14_310
Pierce11Tanwax Lake10/21/2014Saxitoxin0.0200.020NoView TANWPIER14_310
Pierce11Tanwax Lake08/27/2014Anatoxin-a<MDL0.010NoView TANWPIER14_200
Pierce11Tanwax Lake08/27/2014Microcystin1.7500.160NoView TANWPIER14_200
Pierce11Tanwax Lake08/27/2014Saxitoxin0.0210.020NoView TANWPIER14_200
Pierce11Tanwax Lake11/13/2013Microcystin<MDL0.160NoNo TANWPIER13_263
Pierce11Tanwax Lake10/09/2013Anatoxin-a<MDL0.010NoView TANWPIER13_194
Pierce11Tanwax Lake10/09/2013Microcystin0.6230.160NoView TANWPIER13_194
Pierce11Tanwax Lake07/23/2013Anatoxin-a<MDL0.010NoView TANWPIER13_025
Pierce11Tanwax Lake07/23/2013Microcystin<MDL0.160NoView TANWPIER13_025
Pierce11Tanwax Lake06/04/2013Anatoxin-a<MDL0.010NoView TANWPIER13_02
Pierce11Tanwax Lake06/04/2013Microcystin<MDL0.050NoView TANWPIER13_02
Pierce11Tanwax Lake05/01/2013Anatoxin-a<MDL0.019NoView  
Pierce11Tanwax Lake05/01/2013Microcystin0.1560.050NoView  
Pierce11Tanwax Lake10/17/2012Anatoxin-a<MDL0.019NoView  
Pierce11Tanwax Lake10/17/2012Microcystin1.1500.050NoView  
Pierce11Tanwax Lake10/24/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake10/24/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake10/10/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake10/10/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake09/26/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake09/26/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake09/12/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake09/12/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake08/22/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake08/22/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake08/08/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake08/08/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake07/24/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake07/24/2011Microcystin0.0500.050NoNo TANWPIER050
Pierce11Tanwax Lake07/11/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake07/11/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/20/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake06/20/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/06/2011Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake06/06/2011Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake10/25/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake10/25/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake10/20/2010Microcystin109.0000.050YesView  
Pierce11Tanwax Lake10/11/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake10/11/2010Microcystin0.1400.050NoNo TANWPIER050
Pierce11Tanwax Lake10/06/2010Microcystin25.1000.050YesView  
Pierce11Tanwax Lake09/27/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake09/27/2010Microcystin0.2360.050NoNo TANWPIER050
Pierce11Tanwax Lake09/22/2010Microcystin0.7540.050NoView  
Pierce11Tanwax Lake09/13/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake09/13/2010Microcystin0.0750.050NoNo TANWPIER050
Pierce11Tanwax Lake08/23/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake08/23/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake08/09/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake08/09/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake07/26/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake07/26/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake07/12/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake07/12/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/20/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake06/20/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/07/2010Anatoxin-a<MDL0.019NoNo TANWPIER050
Pierce11Tanwax Lake06/07/2010Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake11/30/2009Anatoxin-a<MDL0.130NoNo  
Pierce11Tanwax Lake11/03/2009Microcystin<MDL0.050NoNo  
Pierce11Tanwax Lake10/27/2009Microcystin<MDL0.050NoNo  
Pierce11Tanwax Lake10/19/2009Anatoxin-a<MDL0.012NoNo TANWPIER050
Pierce11Tanwax Lake10/19/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake10/05/2009Anatoxin-a<MDL0.012NoNo TANWPIER050
Pierce11Tanwax Lake10/05/2009Microcystin0.0600.050NoNo TANWPIER050
Pierce11Tanwax Lake09/20/2009Anatoxin-a<MDL0.006NoNo TANWPIER050
Pierce11Tanwax Lake09/20/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake09/08/2009Anatoxin-a<MDL0.006NoNo TANWPIER050
Pierce11Tanwax Lake09/08/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake09/01/2009Microcystin0.1040.050NoNo  
Pierce11Tanwax Lake08/24/2009Anatoxin-a<MDL0.006NoNo TANWPIER050
Pierce11Tanwax Lake08/24/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake08/19/2009Microcystin<MDL0.050NoNo  
Pierce11Tanwax Lake08/10/2009Anatoxin-a<MDL0.006NoNo TANWPIER050
Pierce11Tanwax Lake08/10/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake07/27/2009Anatoxin-a<MDL0.004NoNo TANWPIER050
Pierce11Tanwax Lake07/27/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake07/13/2009Anatoxin-a<MDL0.006NoNo TANWPIER050
Pierce11Tanwax Lake07/13/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/29/2009Anatoxin-a<MDL0.004NoNo TANWPIER050
Pierce11Tanwax Lake06/29/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake06/15/2009Anatoxin-a<MDL0.003NoNo TANWPIER050
Pierce11Tanwax Lake06/15/2009Microcystin<MDL0.050NoNo TANWPIER050
Pierce11Tanwax Lake12/08/2008Microcystin0.0590.050NoNo  
Pierce11Tanwax Lake10/14/2008Microcystin0.1700.050NoNo  
Pierce11Tanwax Lake10/06/2008Microcystin<MDL0.050NoNo  
Pierce11Tanwax Lake09/29/2008Microcystin0.0610.050NoNo  
Pierce11Tanwax Lake11/07/2007Microcystin<MDL0.050NoNo  

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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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