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
King7Lake Marcel09/12/2021Anatoxin-a0.1290.010NoNoSwim area, beach 1MARCKING015_21_358
King7Lake Marcel09/12/2021Microcystin3.4000.150NoNoSwim area, beach 1MARCKING015_21_358
King7Lake Marcel08/22/2021Anatoxin-a<MDL0.010NoNoBeach 1MARCKING015_21_274
King7Lake Marcel08/22/2021Microcystin0.3350.150NoNoBeach 1MARCKING015_21_274
King7Lake Marcel08/08/2021Anatoxin-a<MDL0.010NoNoSwim beach #2MARCKING015_21_206
King7Lake Marcel08/08/2021Microcystin2.1200.150NoNoSwim beach #2MARCKING015_21_206
King7Lake Marcel08/01/2021Anatoxin-a0.0390.010NoViewNE corner, , 47.6975, -121.91666MARCKING015_21_176
King7Lake Marcel08/01/2021Microcystin4.7600.150NoViewNE corner, , 47.6975, -121.91666MARCKING015_21_176
King7Lake Marcel07/25/2021Anatoxin-a0.0150.010NoView 47.698315°N, 121.919246°WMARCKING015_21_155
King7Lake Marcel07/25/2021Microcystin1.1600.150NoView 47.698315°N, 121.919246°WMARCKING015_21_155
King7Lake Marcel07/18/2021Anatoxin-a0.0170.010NoViewBeach 1 Swim AreaMARCKING015_21_134
King7Lake Marcel07/18/2021Cylindrospermopsin<MDL0.025NoViewBeach 1 Swim AreaMARCKING015_21_134
King7Lake Marcel07/18/2021Microcystin9.8300.150YesViewBeach 1 Swim AreaMARCKING015_21_134
King7Lake Marcel07/18/2021Saxitoxin0.0230.020NoViewBeach 1 Swim AreaMARCKING015_21_134
King7Lake Marcel09/27/2020Anatoxin-a<MDL0.010NoViewSwim Beach 1MARCKING015_20_412
King7Lake Marcel09/27/2020Microcystin0.2770.150NoViewSwim Beach 1MARCKING015_20_412
King7Lake Marcel09/14/2020Anatoxin-a<MDL0.010NoViewlakewideMARCKING015_20_364
King7Lake Marcel09/14/2020Microcystin3.6000.150NoViewlakewideMARCKING015_20_364
King7Lake Marcel09/02/2020Microcystin4.0000.150NoViewWest side channelMARCKING015_20_342
King7Lake Marcel08/23/2020Anatoxin-a<MDL0.010NoViewBeach 1 Swim AreaMARCKING015_20_296
King7Lake Marcel08/23/2020Microcystin0.1840.150NoViewBeach 1 Swim AreaMARCKING015_20_296
King7Lake Marcel08/20/2020Microcystin3.0800.150NoViewBeach 1 swim areaMARCKING015_20_289
King7Lake Marcel08/12/2020Anatoxin-a<MDL0.010NoView 47.6948, -121.9178 w side of channelMARCKING015_20_247
King7Lake Marcel08/12/2020Microcystin1.4300.150NoView 47.6948, -121.9178 w side of channelMARCKING015_20_247
King7Lake Marcel08/03/2020Anatoxin-a0.0260.010NoViewNW Inlet MARCKING015_20_192
King7Lake Marcel08/03/2020Microcystin0.2380.150NoViewNW Inlet MARCKING015_20_192
King7Lake Marcel07/26/2020Anatoxin-a<MDL0.010NoView MarcKing015_20_183
King7Lake Marcel07/26/2020Cylindrospermopsin<MDL0.025NoView MarcKing015_20_183
King7Lake Marcel07/26/2020Microcystin3.1100.150NoView MarcKing015_20_183
King7Lake Marcel07/26/2020Saxitoxin<MDL0.020NoView MarcKing015_20_183
King7Lake Marcel11/04/2019Anatoxin-a<MDL0.010NoNo MARCKING015_19_443
King7Lake Marcel11/04/2019Microcystin3.9500.150NoNo MARCKING015_19_443
King7Lake Marcel10/21/2019Anatoxin-a<MDL0.010NoNo MARCKING015_19_414
King7Lake Marcel10/21/2019Microcystin<MDL0.150NoNo MARCKING015_19_414
King7Lake Marcel10/06/2019Anatoxin-a<MDL0.010NoNo MARCKING015_19_365
King7Lake Marcel10/06/2019Microcystin3.3300.150NoNo MARCKING015_19_365
King7Lake Marcel09/30/2019Anatoxin-a<MDL0.010NoNo MARCKING01519342
King7Lake Marcel09/30/2019Microcystin1.5200.150NoNo MARCKING01519342
King7Lake Marcel09/22/2019Anatoxin-a<MDL0.010NoNo MARCKING015_19_313
King7Lake Marcel09/22/2019Microcystin3.9800.150NoNo MARCKING015_19_313
King7Lake Marcel09/17/2019Anatoxin-a<MDL0.010NoNo MARCKING015_19_305
King7Lake Marcel09/17/2019Microcystin<MDL0.150NoNo MARCKING015_19_305
King7Lake Marcel09/10/2019Anatoxin-a0.0220.010NoNo MARCKING015_19_279
King7Lake Marcel09/10/2019Cylindrospermopsin<MDL0.025NoNo MARCKING015_19_279
King7Lake Marcel09/10/2019Microcystin37.6000.150YesNo MARCKING015_19_279
King7Lake Marcel09/10/2019Saxitoxin<MDL0.020NoNo MARCKING015_19_279
King7Lake Marcel10/21/2018Anatoxin-a<MDL0.165NoNo MARCKING015_18_332
King7Lake Marcel10/21/2018Microcystin2.3800.150NoNo MARCKING015_18_332
King7Lake Marcel10/07/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_299
King7Lake Marcel10/07/2018Microcystin2.9500.150NoView MARCKING015_18_299
King7Lake Marcel10/01/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_283
King7Lake Marcel10/01/2018Microcystin0.7510.150NoView MARCKING015_18_283
King7Lake Marcel09/24/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_261
King7Lake Marcel09/24/2018Microcystin<MDL0.150NoView MARCKING015_18_261
King7Lake Marcel09/17/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_240
King7Lake Marcel09/17/2018Microcystin53.6000.150YesView MARCKING015_18_240
King7Lake Marcel09/09/2018Anatoxin-a<MDL0.010NoNo MARCKING015_18_334
King7Lake Marcel09/09/2018Microcystin7.8500.150NoNo MARCKING015_18_334
King7Lake Marcel08/31/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_203
King7Lake Marcel08/31/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_204
King7Lake Marcel08/31/2018Microcystin2.1900.150NoView MARCKING015_18_204
King7Lake Marcel08/31/2018Microcystin0.7200.150NoView MARCKING015_18_203
King7Lake Marcel08/27/2018Anatoxin-a<MDL0.010NoView MARCKING015_18_193
King7Lake Marcel08/27/2018Microcystin124.0000.150YesView MARCKING015_18_193
King7Lake Marcel08/20/2018Anatoxin-a0.9470.010NoNo MARCKING015-18_172
King7Lake Marcel08/20/2018Microcystin2.0000.150NoNo MARCKING015-18_172
King7Lake Marcel08/15/2018Anatoxin-a0.0140.010NoView MARCKING015_18_164
King7Lake Marcel08/15/2018Anatoxin-a2.9000.010YesView MARCKING015_18_165
King7Lake Marcel08/15/2018Anatoxin-a0.0130.010NoView MARCKING015_18_166
King7Lake Marcel08/15/2018Cylindrospermopsin<MDL0.025NoView MARCKING015_18_166
King7Lake Marcel08/15/2018Cylindrospermopsin<MDL0.025NoView MARCKING015_18_165
King7Lake Marcel08/15/2018Cylindrospermopsin<MDL0.025NoView MARCKING015_18_164
King7Lake Marcel08/15/2018Microcystin19.4000.150YesView MARCKING015_18_164
King7Lake Marcel08/15/2018Microcystin4.5700.150NoView MARCKING015_18_165
King7Lake Marcel08/15/2018Microcystin27.2000.150YesView MARCKING015_18_166
King7Lake Marcel08/15/2018Saxitoxin<MDL0.020NoView MARCKING015_18_166
King7Lake Marcel08/15/2018Saxitoxin<MDL0.020NoView MARCKING015_18_165
King7Lake Marcel08/15/2018Saxitoxin<MDL0.020NoView MARCKING015_18_164
King7Lake Marcel10/08/2017Anatoxin-a<MDL0.010NoNo MARCKING015_17_294
King7Lake Marcel10/08/2017Microcystin1.4700.150NoNo MARCKING015_17_294
King7Lake Marcel10/09/2016Microcystin<MDL0.200NoNo MARCKING015_16_286
King7Lake Marcel08/31/2016Microcystin0.4930.200NoNo MARCKING015_16_189
King7Lake Marcel08/24/2016Microcystin1.7200.200NoNo MARCKING015_16_174
King7Lake Marcel08/17/2016Anatoxin-aNA0.010NoNo MARCKING015_16_164
King7Lake Marcel08/17/2016Microcystin10.8000.200YesNo MARCKING015_16_164
King7Lake Marcel08/07/2016Anatoxin-a<MDL0.010NoNo MARCKING015_16_136
King7Lake Marcel08/07/2016Microcystin6.4900.200NoNo MARCKING015_16_136
King7Lake Marcel05/12/2016Anatoxin-a<MDL0.010NoView MARCKING015_16_055
King7Lake Marcel05/12/2016Microcystin<MDL0.200NoView MARCKING015_16_055
King7Lake Marcel06/25/2015Anatoxin-a0.0230.010NoNo MARCKING15_15_161
King7Lake Marcel06/25/2015Microcystin0.1640.160NoNo MARCKING15_15_161
King7Lake Marcel09/22/2014Anatoxin-a<MDL0.010NoNo MARCKING14_262
King7Lake Marcel09/22/2014Microcystin<MDL0.160NoNo MARCKING14_262
King7Lake Marcel09/07/2014Anatoxin-a<MDL0.010NoView MARCKING14_181
King7Lake Marcel09/07/2014microcystin22.1000.160YesView MARCKING14_181
King7Lake Marcel07/22/2014Anatoxin-a0.0130.010NoView MARCKING14_102
King7Lake Marcel07/22/2014Microcystin0.6580.160NoView MARCKING14_102
King7Lake Marcel06/23/2014Anatoxin-a0.0120.010NoView MARCKING14_078
King7Lake Marcel06/23/2014Microcystin<MDL0.160NoView MARCKING14_078
King7Lake Marcel06/21/2014Anatoxin-a0.0120.010NoView MARCKING14_075
King7Lake Marcel06/21/2014Microcystin<MDL0.160NoView MARCKING14_075
King7Lake Marcel08/16/2013Anatoxin-a<MDL0.010NoNo MARCKING13_063
King7Lake Marcel08/16/2013Microcystin<MDL0.160NoNo MARCKING13_063
King7Lake Marcel08/07/2013Anatoxin-a<MDL0.010NoView MARCKING13_052
King7Lake Marcel08/07/2013Anatoxin-a0.0150.010NoView MARCKING13_050
King7Lake Marcel08/07/2013Microcystin0.6050.160NoView MARCKING13_050
King7Lake Marcel08/07/2013Microcystin<MDL0.160NoView MARCKING13_052
King7Lake Marcel08/01/2013Anatoxin-a0.0180.010NoView MARCKING13_037
King7Lake Marcel08/01/2013Anatoxin-a0.0190.010NoView MARCKING13_038
King7Lake Marcel08/01/2013Microcystin<MDL0.160NoView MARCKING13_038
King7Lake Marcel08/01/2013Microcystin<MDL0.160NoView MARCKING13_037
King7Lake Marcel07/23/2013Anatoxin-a1.3600.010YesView MARCKING13_026
King7Lake Marcel07/23/2013Microcystin1.4600.160NoView MARCKING13_026
King7Lake Marcel10/23/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel10/23/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel10/09/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel10/09/2011Microcystin0.0580.050NoNo MARCKING015
King7Lake Marcel09/25/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel09/25/2011Microcystin0.0520.050NoNo MARCKING015
King7Lake Marcel09/11/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel09/11/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel08/21/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel08/21/2011Microcystin0.0630.050NoNo MARCKING015
King7Lake Marcel08/08/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel08/08/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel07/24/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel07/24/2011Microcystin0.0670.050NoNo MARCKING015
King7Lake Marcel07/10/2011Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel07/10/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/19/2011Anatoxin-a0.0310.019NoNo MARCKING015
King7Lake Marcel06/19/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/05/2011Anatoxin-a0.0310.019NoNo MARCKING015
King7Lake Marcel06/05/2011Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel10/24/2010Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel10/24/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel10/10/2010Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel10/10/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel09/26/2010Anatoxin-a0.0200.019NoNo MARCKING015
King7Lake Marcel09/26/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel09/12/2010Anatoxin-a0.0200.019NoNo MARCKING015
King7Lake Marcel09/12/2010Microcystin0.0850.050NoNo MARCKING015
King7Lake Marcel09/02/2010Anatoxin-a0.0770.019NoView  
King7Lake Marcel09/02/2010Microcystin4.2700.050NoView  
King7Lake Marcel08/22/2010Anatoxin-a0.0360.019NoNo MARCKING015
King7Lake Marcel08/22/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel08/08/2010Anatoxin-a0.0510.019NoNo MARCKING015
King7Lake Marcel08/08/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel07/25/2010Anatoxin-a0.0580.019NoNo MARCKING015
King7Lake Marcel07/25/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel07/11/2010Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel07/11/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/20/2010Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel06/20/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/06/2010Anatoxin-a<MDL0.019NoNo MARCKING015
King7Lake Marcel06/06/2010Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel10/18/2009Anatoxin-a<MDL0.006NoNo MARCKING015
King7Lake Marcel10/18/2009Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel10/12/2009Anatoxin-a<MDL0.120NoNo MARCKING015
King7Lake Marcel10/12/2009Microcystin1.1000.050NoNo MARCKING015
King7Lake Marcel10/04/2009Anatoxin-a<MDL0.012NoNo MARCKING015
King7Lake Marcel10/04/2009Microcystin0.4210.050NoNo MARCKING015
King7Lake Marcel09/20/2009Anatoxin-a0.0280.012NoNo MARCKING015
King7Lake Marcel09/20/2009Microcystin0.0760.050NoNo MARCKING015
King7Lake Marcel09/07/2009Anatoxin-a<MDL0.006NoNo MARCKING015
King7Lake Marcel09/07/2009Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel08/23/2009Anatoxin-a<MDL0.004NoNo MARCKING015
King7Lake Marcel08/23/2009Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel08/09/2009Anatoxin-a<MDL0.004NoNo MARCKING015
King7Lake Marcel08/09/2009Microcystin0.1000.050NoNo MARCKING015
King7Lake Marcel07/26/2009Anatoxin-a<MDL0.012NoNo MARCKING015
King7Lake Marcel07/26/2009Microcystin0.1150.050NoNo MARCKING015
King7Lake Marcel07/12/2009Anatoxin-a<MDL0.006NoNo MARCKING015
King7Lake Marcel07/12/2009Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/28/2009Anatoxin-a<MDL0.006NoNo MARCKING015
King7Lake Marcel06/28/2009Microcystin<MDL0.050NoNo MARCKING015
King7Lake Marcel06/14/2009Anatoxin-a0.0330.006NoNo MARCKING015
King7Lake Marcel06/14/2009Microcystin<MDL0.050NoNo MARCKING015

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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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