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
Island6Lone Lake09/21/2021Anatoxin-a<MDL0.010NoNo LONEISLA014-21_414
Island6Lone Lake09/21/2021Microcystin3102.0000.150YesNo LONEISLA014-21_414
Island6Lone Lake09/07/2021Anatoxin-a0.0980.010NoNoboat rampLONEISLA014_21_335
Island6Lone Lake09/07/2021Microcystin153.0000.150YesNoboat rampLONEISLA014_21_335
Island6Lone Lake08/31/2021Anatoxin-a0.0810.010NoNo LONEISLA014-21-318
Island6Lone Lake08/31/2021Microcystin23.6000.150YesNo LONEISLA014-21-318
Island6Lone Lake08/17/2021Anatoxin-a0.1050.010NoNoLakewide. Sample at NW shorelineLONEISLA014_21_252
Island6Lone Lake08/17/2021Microcystin319.0000.150YesNoLakewide. Sample at NW shorelineLONEISLA014_21_252
Island6Lone Lake08/11/2021Anatoxin-a0.2530.010NoNoNW shorelineLONEISLA014_21_230
Island6Lone Lake08/11/2021Microcystin43.1000.150YesNoNW shorelineLONEISLA014_21_230
Island6Lone Lake07/29/2021Anatoxin-a115.0000.010YesViewBoat RampLONEISLA014_21_174
Island6Lone Lake07/29/2021Microcystin4.3000.150NoViewBoat RampLONEISLA014_21_174
Island6Lone Lake07/27/2021Anatoxin-a11.5000.010YesViewNW shorelineLONEISLA014_21_167
Island6Lone Lake07/27/2021Microcystin3.0800.150NoViewNW shorelineLONEISLA014_21_167
Island6Lone Lake07/06/2021Anatoxin-a1.8200.010YesViewdensest on NW shoreline but all along norther shoreLONEISLA014_21_110
Island6Lone Lake07/06/2021Microcystin2.3500.150NoViewdensest on NW shoreline but all along norther shoreLONEISLA014_21_110
Island6Lone Lake07/06/2021Saxitoxin<MDL0.020NoViewdensest on NW shoreline but all along norther shoreLONEISLA014_21_110
Island6Lone Lake06/07/2021Anatoxin-a0.0890.010NoViewBeachLONEISLA014_21_062
Island6Lone Lake06/07/2021Microcystin0.4290.150NoViewBeachLONEISLA014_21_062
Island6Lone Lake05/12/2021Anatoxin-a0.4880.010NoViewLakeLONEISLA014_21_039
Island6Lone Lake05/12/2021Cylindrospermopsin<MDL0.050NoViewLakeLONEISLA014_21_039
Island6Lone Lake05/12/2021Microcystin0.2570.150NoViewLakeLONEISLA014_21_039
Island6Lone Lake10/12/2020Anatoxin-a0.2350.010NoViewBoat RampLONEISLA014_20_465
Island6Lone Lake10/12/2020Microcystin4.4000.150NoViewBoat RampLONEISLA014_20_465
Island6Lone Lake10/05/2020Anatoxin-a1.8700.010YesViewNortheastLONEISLA014_20_450
Island6Lone Lake10/05/2020Microcystin21.8000.150YesViewNortheastLONEISLA014_20_450
Island6Lone Lake09/29/2020Anatoxin-a0.1340.010NoViewBoat rampLONEISLA014_20_434
Island6Lone Lake09/29/2020Microcystin12.4000.150YesViewBoat rampLONEISLA014_20_434
Island6Lone Lake09/21/2020Anatoxin-a7.2500.010YesViewBoat rampLONEISLA014_20_391
Island6Lone Lake09/21/2020Microcystin2370.0000.150YesViewBoat rampLONEISLA014_20_391
Island6Lone Lake09/14/2020Anatoxin-a1.0300.010YesViewNW shorelineLONEISLA014_20_363
Island6Lone Lake09/14/2020Microcystin2460.0000.150YesViewNW shorelineLONEISLA014_20_363
Island6Lone Lake09/01/2020Anatoxin-a188.0000.010YesViewNorthwestLONEISLA014_20_340
Island6Lone Lake09/01/2020Cylindrospermopsin<MDL0.025NoViewNorthwestLONEISLA014_20_340
Island6Lone Lake09/01/2020Microcystin52.5000.150YesViewNorthwestLONEISLA014_20_340
Island6Lone Lake09/01/2020Saxitoxin<MDL0.020NoViewNorthwestLONEISLA014_20_340
Island6Lone Lake08/24/2020Anatoxin-a119.0000.010YesViewNortheastLONEISLA014_20_299
Island6Lone Lake08/24/2020Microcystin2.8100.150NoViewNortheastLONEISLA014_20_299
Island6Lone Lake07/22/2020Anatoxin-a16.1000.010YesNoNorth shore near boat rampLONEISLA014_20_162
Island6Lone Lake07/22/2020Microcystin4.7500.150NoNoNorth shore near boat rampLONEISLA014_20_162
Island6Lone Lake06/09/2020Anatoxin-a0.1260.010NoViewNo bloom. Follow up test because last test showed toxins above recreational limitLONEISLA014_20_076
Island6Lone Lake06/09/2020Cylindrospermopsin<MDL0.025NoViewNo bloom. Follow up test because last test showed toxins above recreational limitLONEISLA014_20_076
Island6Lone Lake06/09/2020Microcystin0.4790.150NoViewNo bloom. Follow up test because last test showed toxins above recreational limitLONEISLA014_20_076
Island6Lone Lake06/09/2020Saxitoxin<MDL0.020NoViewNo bloom. Follow up test because last test showed toxins above recreational limitLONEISLA014_20_076
Island6Lone Lake11/12/2019Anatoxin-a1.0800.010YesNo LONEISLA014
Island6Lone Lake11/12/2019Microcystin0.2540.150NoNo LONEISLA014
Island6Lone Lake09/10/2019Anatoxin-a4.2100.010YesNo LONEISLA014_19_273
Island6Lone Lake09/10/2019Cylindrospermopsin<MDL0.025NoNo LONEISLA014_19_273
Island6Lone Lake09/10/2019Microcystin4.6000.150NoNo LONEISLA014_19_273
Island6Lone Lake09/10/2019Saxitoxin<MDL0.020NoNo LONEISLA014_19_273
Island6Lone Lake08/27/2019Anatoxin-a18.5000.010YesNo LONEISLA014_19_203
Island6Lone Lake08/27/2019Cylindrospermopsin<MDL0.025NoNo LONEISLA014_19_203
Island6Lone Lake08/27/2019Microcystin25.6000.150YesNo LONEISLA014_19_203
Island6Lone Lake08/27/2019Saxitoxin<MDL0.020NoNo LONEISLA014_19_203
Island6Lone Lake07/09/2019Anatoxin-a0.1020.010NoView LONEISLA014_19_074
Island6Lone Lake07/09/2019Microcystin0.2270.150NoView LONEISLA014_19_074
Island6Lone Lake06/04/2019Anatoxin-a0.5040.010NoNo LONEISLA014_19_035
Island6Lone Lake06/04/2019Microcystin<MDL0.150NoNo LONEISLA014_19_035
Island6Lone Lake05/28/2019Anatoxin-a2.4700.010YesView LONEISLA014_19_030
Island6Lone Lake05/28/2019Microcystin0.2050.150NoView LONEISLA014_19_030
Island6Lone Lake05/12/2019Anatoxin-a0.1890.010NoNo LONEISLA014_19_020
Island6Lone Lake05/12/2019Microcystin<MDL0.150NoNo LONEISLA014_19_020
Island6Lone Lake01/22/2019Anatoxin-a0.2390.010NoNo LONEISLA014
Island6Lone Lake01/22/2019Microcystin<MDL0.150NoNo LONEISLA014
Island6Lone Lake10/30/2018Anatoxin-a99.4000.010YesView LONEISLA014_18_361
Island6Lone Lake10/30/2018Microcystin142.0000.150YesView LONEISLA014_18_361
Island6Lone Lake10/16/2018Anatoxin-a1.0900.010YesNo LONEISLA014_18_320
Island6Lone Lake10/16/2018Microcystin30.3000.150YesNo LONEISLA014_18_320
Island6Lone Lake10/03/2018Anatoxin-a0.5500.010NoView LONEISLA014_18_293
Island6Lone Lake10/03/2018Microcystin500.0000.150YesView LONEISLA014_18_293
Island6Lone Lake09/19/2018Anatoxin-a19.5000.010YesNo LONEISLA014_18_247
Island6Lone Lake09/19/2018Cylindrospermopsin<MDL0.025NoNo LONEISLA014_18_247
Island6Lone Lake09/19/2018Microcystin235.0000.150YesNo LONEISLA014_18_247
Island6Lone Lake09/19/2018Saxitoxin<MDL0.020NoNo LONEISLA014_18_247
Island6Lone Lake08/22/2018Anatoxin-a8960.0000.010YesView LONEISLA014_18_183
Island6Lone Lake08/22/2018Cylindrospermopsin<MDL0.025NoView LONEISLA014_18_183
Island6Lone Lake08/22/2018Microcystin30.0000.150YesView LONEISLA014_18_183
Island6Lone Lake08/22/2018Saxitoxin<MDL0.020NoView LONEISLA014_18_183
Island6Lone Lake06/26/2018Anatoxin-a1.3700.010YesNo LONEISLA014_18_067
Island6Lone Lake06/26/2018Microcystin2.3800.150NoNo LONEISLA014_18_067
Island6Lone Lake10/09/2017Anatoxin-a0.4560.010NoNo LONEISLA014_17_278
Island6Lone Lake10/09/2017Microcystin2.9400.150NoNo LONEISLA014_17_278
Island6Lone Lake09/27/2017Anatoxin-a1.8200.010YesNo LONEISLA014_17_261
Island6Lone Lake09/27/2017Microcystin3.9000.150NoNo LONEISLA014_17_261
Island6Lone Lake09/20/2017Anatoxin-a0.2290.010NoNo LONEISLA014_17_245
Island6Lone Lake09/20/2017Microcystin2.7200.150NoNo LONEISLA014_17_245
Island6Lone Lake08/23/2017Anatoxin-a2.8400.010YesView LONEISLA014_17_197
Island6Lone Lake08/23/2017Microcystin28.4000.150YesView LONEISLA014_17_197
Island6Lone Lake08/09/2017Anatoxin-a1230.0000.010YesView LONEISLA014_17_168
Island6Lone Lake08/09/2017Microcystin23.6000.150YesView LONEISLA014_17_168
Island6Lone Lake08/02/2017Anatoxin-a0.3700.010NoNo LONEISLA014_17_154
Island6Lone Lake08/02/2017Microcystin0.3740.150NoNo LONEISLA014_17_154
Island6Lone Lake07/27/2017Anatoxin-a1.8400.010YesView LONEISLA014_17_146
Island6Lone Lake07/27/2017Microcystin0.2120.150NoView LONEISLA014_17_146
Island6Lone Lake07/20/2017Anatoxin-a161.0000.010YesView LONEISLA014_17_137
Island6Lone Lake07/20/2017Microcystin1.2100.150NoView LONEISLA014_17_137
Island6Lone Lake07/13/2017Anatoxin-a49.0000.010YesView LONEISLA014_17_128
Island6Lone Lake07/13/2017Microcystin<MDL0.150NoView LONEISLA014_17_128
Island6Lone Lake07/06/2017Anatoxin-a0.7190.010NoNo LONEISLA014_17_121
Island6Lone Lake07/06/2017Microcystin0.1530.150NoNo LONEISLA014_17_121
Island6Lone Lake09/20/2016Anatoxin-a0.0120.010NoNo LONEISLA014_16_226
Island6Lone Lake09/20/2016Microcystin<MDL0.160NoNo LONEISLA014_16_226
Island6Lone Lake07/19/2016Anatoxin-a0.5190.010NoView LONEISLA014_16_099
Island6Lone Lake07/19/2016Microcystin<MDL0.200NoView LONEISLA014_16_099
Island6Lone Lake07/06/2016Anatoxin-a10.7000.010YesView LONEISLA014_16_086
Island6Lone Lake07/06/2016Microcystin0.2010.200NoView LONEISLA014_16_086
Island6Lone Lake05/19/2016Anatoxin-a0.0660.010NoView LONEISLA014_16_059
Island6Lone Lake05/19/2016Microcystin3.6100.160NoView LONEISLA014_16_059
Island6Lone Lake09/21/2015Anatoxin-a0.0190.010NoView LONEISLA014_15_398
Island6Lone Lake09/21/2015Microcystin1.2700.160NoView LONEISLA014_15_398
Island6Lone Lake08/18/2015Anatoxin-a0.0740.010NoView LONEISLA014_15_304
Island6Lone Lake08/18/2015Microcystin0.8320.160NoView LONEISLA014_15_304
Island6Lone Lake07/28/2015Anatoxin-a11.2000.010YesView LONEISLA014_15_235
Island6Lone Lake07/28/2015Microcystin7.4300.160NoView LONEISLA014_15_235
Island6Lone Lake07/23/2015Anatoxin-a93.1000.010YesView LONEISLA014_15_215
Island6Lone Lake07/23/2015Microcystin21.1000.160YesView LONEISLA014_15_215
Island6Lone Lake06/25/2015Anatoxin-a0.0110.010NoNo LONEISLA014_15_162
Island6Lone Lake06/25/2015Microcystin1.1400.160NoNo LONEISLA014_15_162
Island6Lone Lake08/11/2014Anatoxin-a0.0960.010NoView LONEISLA14_142
Island6Lone Lake08/11/2014Cylindrospermopsin<MDL0.100NoView LONEISLA14_142
Island6Lone Lake08/11/2014Microcystin2.9000.160NoView LONEISLA14_142
Island6Lone Lake08/11/2014Saxitoxin<MDL0.020NoView LONEISLA14_142
Island6Lone Lake06/23/2014Anatoxin-a0.0850.010NoView LONEISLA14_082
Island6Lone Lake06/23/2014Cylindrospermopsin<MDL0.100NoView LONEISLA14_082
Island6Lone Lake06/23/2014Microcystin0.2940.160NoView LONEISLA14_082
Island6Lone Lake06/23/2014Saxitoxin<MDL0.020NoView LONEISLA14_082
Island6Lone Lake06/27/2013Anatoxin-a0.1100.010NoNo LONEISLA13_08
Island6Lone Lake06/27/2013Microcystin0.1600.160NoNo LONEISLA13_08
Island6Lone Lake05/08/2013Microcystin0.0780.050NoView  
Island6Lone Lake05/08/2013Saxitoxin<MDL0.020NoView  
Island6Lone Lake06/28/2012Anatoxin-a0.0580.019NoView  
Island6Lone Lake06/28/2012Microcystin1.3000.050NoView  
Island6Lone Lake08/10/2011Anatoxin-a0.5270.019NoNo  
Island6Lone Lake08/10/2011Microcystin59.3000.050YesNo  
Island6Lone Lake07/19/2011Anatoxin-a0.1560.019NoView  
Island6Lone Lake07/19/2011Microcystin38.0000.050YesView  
Island6Lone Lake06/30/2010Anatoxin-a0.0570.019NoView  
Island6Lone Lake06/30/2010Microcystin7.3600.050NoView  
Island6Lone Lake05/26/2010Anatoxin-a0.1100.047NoView  
Island6Lone Lake05/26/2010Microcystin<MDL0.050NoView  
Island6Lone Lake05/06/2010Anatoxin-a27.1000.047YesView  
Island6Lone Lake05/06/2010Microcystin0.0510.050NoView  
Island6Lone Lake04/27/2010Anatoxin-a265.0000.063YesView  
Island6Lone Lake04/27/2010Microcystin0.1130.050NoView  
Island6Lone Lake04/08/2010Anatoxin-a0.0730.050NoView  
Island6Lone Lake04/08/2010Microcystin<MDL0.050NoView  
Island6Lone Lake03/22/2010Anatoxin-a<MDL0.050NoView  
Island6Lone Lake03/22/2010Microcystin<MDL0.050NoView  
Island6Lone Lake10/06/2009Anatoxin-a<MDL0.038NoNo  
Island6Lone Lake10/06/2009Microcystin0.2890.050NoNo  
Island6Lone Lake07/27/2009Anatoxin-a<MDL0.038NoNo  
Island6Lone Lake07/27/2009Microcystin0.6760.050NoNo  
Island6Lone Lake06/03/2009Microcystin<MDL0.050NoNo  
Island6Lone Lake04/29/2009Microcystin<MDL0.050NoNo  
Island6Lone Lake04/14/2009Microcystin<MDL0.050NoNo  
Island6Lone Lake09/23/2008Microcystin0.2470.050NoNo  
Island6Lone Lake09/03/2008Microcystin16.2000.050YesNo  
Island6Lone Lake08/25/2008Microcystin12.5000.050YesNo  
Island6Lone Lake08/13/2008Microcystin107.0000.050YesNo  
Island6Lone Lake07/22/2008Microcystin2.6300.050NoNo  
Island6Lone Lake07/10/2008Microcystin0.4120.050NoNo  
Island6Lone Lake09/25/2007Microcystin92.5000.050YesNo  
Island6Lone Lake08/08/2007Microcystin0.0960.050NoNo  
Island6Lone Lake08/08/2007Microcystin2.5300.050NoNo  

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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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