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.

Toxin:
CountyWRIA NumberSiteCollect DateParameterToxin Conc. (µg/L)MDL (µg/L)Above State GuidelineAdditional InformationSample LocationEcology Tracking Number
King9Lake Wilderness01/23/2024Microcystin<MDL0.150NoNo  
King9Lake Wilderness12/04/2023Microcystin0.7300.150NoNo WILDKING039
King9Lake Wilderness12/04/2023Microcystin<MDL0.150NoNo WILDKING039
King9Lake Wilderness10/29/2023Anatoxin-a<MDL0.165NoNolakewideWILDKING039_23_423
King9Lake Wilderness10/29/2023Microcystin0.2100.150NoNolakewideWILDKING039_23_423
King9Lake Wilderness10/24/2023Microcystin40.0000.150YesView WILDKING039_23_403
King9Lake Wilderness10/15/2023Anatoxin-a<MDL0.010NoNoSouth ShoreWILDKING039_23_377
King9Lake Wilderness10/15/2023Microcystin240.0000.150YesNoSouth ShoreWILDKING039_23_377
King9Lake Wilderness09/18/2023Anatoxin-a<MDL0.010NoNo WILDKING039
King9Lake Wilderness09/18/2023Microcystin0.2970.150NoNo WILDKING039
King9Lake Wilderness12/01/2021Anatoxin-a<MDL0.010NoView WILDKING039
King9Lake Wilderness12/01/2021Microcystin0.6510.150NoView WILDKING039
King9Lake Wilderness06/29/2021Anatoxin-a<MDL0.010NoNoswim beachWILDKING039_21_099
King9Lake Wilderness06/29/2021Cylindrospermopsin<MDL0.025NoNoswim beachWILDKING039_21_099
King9Lake Wilderness06/29/2021Microcystin0.1580.150NoNoswim beachWILDKING039_21_099
King9Lake Wilderness06/29/2021Saxitoxin<MDL0.020NoNoswim beachWILDKING039_21_099
King9Lake Wilderness10/23/2017Anatoxin-a<MDL0.010NoNo WILDKING039_17_320
King9Lake Wilderness10/23/2017Microcystin4.5100.150NoNo WILDKING039_17_320
King9Lake Wilderness11/14/2016Microcystin<MDL0.200NoView WILDKING039_16_332
King9Lake Wilderness11/14/2016Microcystin0.2960.200NoView WILDKING039_16_333
King9Lake Wilderness10/31/2016Microcystin0.3220.200NoNo WILDKING039_16_318
King9Lake Wilderness10/23/2016Microcystin0.2230.200NoNo WILDKING039_16_309
King9Lake Wilderness10/18/2016Microcystin146.0000.200YesView WILDKING039_16_296
King9Lake Wilderness10/10/2016Microcystin11.4000.200YesNo WILDKING039_16_284
King9Lake Wilderness10/03/2016Microcystin730.160NoNo WILDKING039_16_268
King9Lake Wilderness09/19/2016Anatoxin-a<MDL0.010NoView WILDKING039_16_220
King9Lake Wilderness09/19/2016Microcystin10.0000.160YesView WILDKING039_16_220
King9Lake Wilderness10/27/2015Microcystin74.9000.160YesView WILDKING039_15_499
King9Lake Wilderness09/13/2015Microcystin9.1000.160YesNo  
King9Lake Wilderness04/03/2015Anatoxin-a<MDL0.010NoView WILDKING15_073
King9Lake Wilderness04/03/2015Microcystin1.5600.160NoView WILDKING15_073
King9Lake Wilderness03/26/2015Anatoxin-a<MDL0.010NoNo WILDKING15_069
King9Lake Wilderness03/26/2015Microcystin1.2900.160NoNo WILDKING15_069
King9Lake Wilderness01/06/2015Anatoxin-a<MDL0.500NoView WILDKING15_005
King9Lake Wilderness01/06/2015Cylindrospermopsin<MDL0.100NoView WILDKING15_005
King9Lake Wilderness01/06/2015Microcystin<MDL0.160NoView WILDKING15_005
King9Lake Wilderness01/06/2015Saxitoxin<MDL0.020NoView WILDKING15_005
King9Lake Wilderness11/20/2014Anatoxin-a<MDL0.010NoNo WILDKING14_339
King9Lake Wilderness11/20/2014Microcystin0.4000.160NoNo WILDKING14_339
King9Lake Wilderness07/01/2013Anatoxin-a<MDL0.010NoNo WILDKING13_12
King9Lake Wilderness07/01/2013Anatoxin-a0.4440.010NoNo WILDKING13_11
King9Lake Wilderness07/01/2013Microcystin11.7000.160YesNo WILDKING13_11
King9Lake Wilderness07/01/2013Microcystin<MDL0.160NoNo WILDKING13_12
King9Lake Wilderness03/18/2013Microcystin<MDL0.050NoView  
King9Lake Wilderness02/05/2013Anatoxin-a<MDL0.019NoView  
King9Lake Wilderness02/05/2013Microcystin0.5160.050NoView  
King9Lake Wilderness01/24/2013Anatoxin-a<MDL0.019NoView  
King9Lake Wilderness01/24/2013Microcystin0.1790.050NoView  
King9Lake Wilderness10/22/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/22/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness10/08/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/08/2012Microcystin0.0660.050NoNo WILDKING039
King9Lake Wilderness09/23/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/23/2012Microcystin0.0950.050NoNo WILDKING039
King9Lake Wilderness09/09/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/09/2012Microcystin0.0560.050NoNo WILDKING039
King9Lake Wilderness08/19/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/19/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness08/05/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/05/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/22/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/22/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/08/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/08/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/17/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/17/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/03/2012Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/03/2012Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness11/10/2011Microcystin0.4810.050NoView  
King9Lake Wilderness10/23/2011Anatoxin-a<MDL0.019NoNo  
King9Lake Wilderness10/23/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/23/2011Cylindrospermopsin<MDL0.100NoNo  
King9Lake Wilderness10/23/2011Microcystin3.7800.050NoNo  
King9Lake Wilderness10/23/2011Microcystin2.4100.050NoNo WILDKING039
King9Lake Wilderness10/23/2011Saxitoxin<MDL0.020NoNo  
King9Lake Wilderness10/14/2011Anatoxin-a<MDL0.019NoView  
King9Lake Wilderness10/14/2011Microcystin1.0400.050NoView  
King9Lake Wilderness10/09/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/09/2011Microcystin0.2040.050NoNo WILDKING039
King9Lake Wilderness09/25/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/25/2011Microcystin0.2600.050NoNo WILDKING039
King9Lake Wilderness09/11/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/11/2011Microcystin0.0950.050NoNo WILDKING039
King9Lake Wilderness08/21/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/21/2011Microcystin0.0530.050NoNo WILDKING039
King9Lake Wilderness08/08/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/08/2011Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/24/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/24/2011Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/10/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/10/2011Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/19/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/19/2011Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/05/2011Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/05/2011Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness10/27/2010Anatoxin-a<MDL0.019NoView  
King9Lake Wilderness10/27/2010Microcystin1.0700.050NoView  
King9Lake Wilderness10/24/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/24/2010Microcystin0.0980.050NoNo WILDKING039
King9Lake Wilderness10/11/2010Anatoxin-a0.0350.019NoNo  
King9Lake Wilderness10/11/2010Cylindrospermopsin<MDL0.100NoNo  
King9Lake Wilderness10/11/2010Microcystin0.6920.050NoNo  
King9Lake Wilderness10/11/2010Saxitoxin<MDL0.020NoNo  
King9Lake Wilderness10/10/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness10/10/2010Microcystin0.1580.050NoNo WILDKING039
King9Lake Wilderness09/26/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/26/2010Microcystin0.1640.050NoNo WILDKING039
King9Lake Wilderness09/20/2010Anatoxin-a<MDL0.019NoView  
King9Lake Wilderness09/20/2010Cylindrospermopsin<MDL0.100NoView  
King9Lake Wilderness09/20/2010Microcystin0.1900.050NoView  
King9Lake Wilderness09/20/2010Saxitoxin<MDL0.020NoView  
King9Lake Wilderness09/12/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness09/12/2010Cylindrospermopsin<MDL0.100NoNo WILDKING039
King9Lake Wilderness09/12/2010Microcystin201.0000.050YesNo WILDKING039
King9Lake Wilderness09/12/2010Saxitoxin<MDL0.020NoNo WILDKING039
King9Lake Wilderness08/22/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/22/2010Microcystin0.2010.050NoNo WILDKING039
King9Lake Wilderness08/08/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness08/08/2010Microcystin0.0710.050NoNo WILDKING039
King9Lake Wilderness07/25/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/25/2010Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/11/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness07/11/2010Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/20/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/20/2010Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/06/2010Anatoxin-a<MDL0.019NoNo WILDKING039
King9Lake Wilderness06/06/2010Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness04/18/2010Anatoxin-a<MDL0.050NoNo  
King9Lake Wilderness04/18/2010Microcystin0.1520.050NoNo  
King9Lake Wilderness04/11/2010Anatoxin-a<MDL0.050NoNo  
King9Lake Wilderness04/11/2010Microcystin0.1170.050NoNo  
King9Lake Wilderness03/23/2010Anatoxin-a<MDL0.050NoView  
King9Lake Wilderness03/23/2010Microcystin0.4490.050NoView  
King9Lake Wilderness02/27/2010Anatoxin-a<MDL0.038NoNo  
King9Lake Wilderness02/27/2010Microcystin0.4380.050NoNo  
King9Lake Wilderness11/30/2009Anatoxin-a<MDL0.130NoNo  
King9Lake Wilderness11/30/2009Anatoxin-a<MDL0.130NoNo  
King9Lake Wilderness11/30/2009Microcystin1.4200.050NoNo  
King9Lake Wilderness11/30/2009Microcystin3.9800.050NoNo  
King9Lake Wilderness11/15/2009Microcystin3.5100.050NoNo  
King9Lake Wilderness11/01/2009Microcystin43.1000.050YesNo  
King9Lake Wilderness10/18/2009Anatoxin-a<MDL0.012NoNo WILDKING039
King9Lake Wilderness10/18/2009Cylindrospermopsin<MDL0.100NoNo WILDKING039
King9Lake Wilderness10/18/2009Microcystin87.0000.050YesNo WILDKING039
King9Lake Wilderness10/18/2009Saxitoxin<MDL0.020NoNo WILDKING039
King9Lake Wilderness10/15/2009Anatoxin-a0.0540.038NoNo  
King9Lake Wilderness10/15/2009Microcystin468.0000.050YesNo  
King9Lake Wilderness10/04/2009Anatoxin-a<MDL0.006NoNo WILDKING039
King9Lake Wilderness10/04/2009Microcystin0.1660.050NoNo WILDKING039
King9Lake Wilderness10/03/2009Anatoxin-a<MDL0.058NoNo WILDKING039
King9Lake Wilderness10/03/2009Microcystin154.0000.050YesNo WILDKING039
King9Lake Wilderness09/20/2009Anatoxin-a<MDL0.006NoNo WILDKING039
King9Lake Wilderness09/20/2009Microcystin0.1580.050NoNo WILDKING039
King9Lake Wilderness09/07/2009Anatoxin-a<MDL0.006NoNo WILDKING039
King9Lake Wilderness09/07/2009Microcystin0.1090.050NoNo WILDKING039
King9Lake Wilderness08/31/2009Anatoxin-a<MDL0.038NoNo  
King9Lake Wilderness08/31/2009Microcystin0.4030.050NoNo  
King9Lake Wilderness08/23/2009Anatoxin-a<MDL0.003NoNo WILDKING039
King9Lake Wilderness08/23/2009Anatoxin-a<MDL0.120NoNo WILDKING039
King9Lake Wilderness08/23/2009Cylindrospermopsin<MDL0.100NoNo WILDKING039
King9Lake Wilderness08/23/2009Microcystin0.1200.050NoNo WILDKING039
King9Lake Wilderness08/23/2009Microcystin15.4000.050YesNo WILDKING039
King9Lake Wilderness08/23/2009Saxitoxin<MDL0.020NoNo WILDKING039
King9Lake Wilderness08/10/2009Anatoxin-a<MDL0.004NoNo WILDKING039
King9Lake Wilderness08/10/2009Microcystin0.0520.050NoNo WILDKING039
King9Lake Wilderness07/26/2009Anatoxin-a<MDL0.006NoNo WILDKING039
King9Lake Wilderness07/26/2009Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness07/12/2009Anatoxin-a<MDL0.003NoNo WILDKING039
King9Lake Wilderness07/12/2009Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/29/2009Anatoxin-a0.0970.038NoNo  
King9Lake Wilderness06/29/2009Microcystin2.6400.050NoNo  
King9Lake Wilderness06/28/2009Anatoxin-a<MDL0.003NoNo WILDKING039
King9Lake Wilderness06/28/2009Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness06/14/2009Anatoxin-a<MDL0.003NoNo WILDKING039
King9Lake Wilderness06/14/2009Microcystin<MDL0.050NoNo WILDKING039
King9Lake Wilderness12/03/2008Microcystin0.0680.050NoNo  

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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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