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
Clark28Round Lake10/12/2021Anatoxin-a<MDL0.010NoNoDamROUNCLAR095_21_511
Clark28Round Lake10/12/2021Microcystin7.0000.150NoNoDamROUNCLAR095_21_511
Clark28Round Lake09/27/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_439
Clark28Round Lake09/27/2021Microcystin0.2000.150NoViewDamROUNCLAR095_21_439
Clark28Round Lake09/13/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_366
Clark28Round Lake09/13/2021Microcystin20.4000.150YesViewDamROUNCLAR095_21_366
Clark28Round Lake08/30/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_307
Clark28Round Lake08/30/2021Microcystin19.9000.150YesViewDamROUNCLAR095_21_307
Clark28Round Lake08/23/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_277
Clark28Round Lake08/23/2021Microcystin3.4700.150NoViewDamROUNCLAR095_21_277
Clark28Round Lake08/16/2021Anatoxin-a0.0380.010NoViewDamROUNCLAR095_21_240
Clark28Round Lake08/16/2021Microcystin0.6050.150NoViewDamROUNCLAR095_21_240
Clark28Round Lake08/09/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_210
Clark28Round Lake08/09/2021Microcystin19.7000.150YesViewDamROUNCLAR095_21_210
Clark28Round Lake08/02/2021Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_21_188
Clark28Round Lake08/02/2021Cylindrospermopsin<MDL0.025NoViewDamROUNCLAR095_21_188
Clark28Round Lake08/02/2021Microcystin10.2000.150YesViewDamROUNCLAR095_21_188
Clark28Round Lake08/02/2021Saxitoxin<MDL0.020NoViewDamROUNCLAR095_21_188
Clark28Round Lake10/26/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_499
Clark28Round Lake10/26/2020Microcystin4.5400.150NoViewDamROUNCLAR095_20_499
Clark28Round Lake10/19/2020Anatoxin-a<MDL0.010NoViewAcross Parking LotROUNCLAR095_20_480
Clark28Round Lake10/19/2020Microcystin6.7600.150NoViewAcross Parking LotROUNCLAR095_20_480
Clark28Round Lake10/12/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_468
Clark28Round Lake10/12/2020Microcystin5.5000.150NoViewDamROUNCLAR095_20_468
Clark28Round Lake10/05/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_457
Clark28Round Lake10/05/2020Microcystin1.8000.150NoViewDamROUNCLAR095_20_457
Clark28Round Lake09/28/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_418
Clark28Round Lake09/28/2020Microcystin0.2810.150NoViewDamROUNCLAR095_20_418
Clark28Round Lake09/21/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_399
Clark28Round Lake09/21/2020Microcystin2.6300.150NoViewDamROUNCLAR095_20_399
Clark28Round Lake09/08/2020Anatoxin-a<MDL0.010NoViewdamROUNCLAR095_20_353
Clark28Round Lake09/08/2020Microcystin0.3240.150NoViewdamROUNCLAR095_20_353
Clark28Round Lake08/31/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_327
Clark28Round Lake08/31/2020Microcystin4.4600.150NoViewDamROUNCLAR095_20_327
Clark28Round Lake08/24/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_301
Clark28Round Lake08/24/2020Microcystin3.6000.150NoViewDamROUNCLAR095_20_301
Clark28Round Lake08/17/2020Anatoxin-a0.0120.010NoViewDamROUNCLAR095_20_262
Clark28Round Lake08/17/2020Microcystin2.8800.150NoViewDamROUNCLAR095_20_262
Clark28Round Lake08/10/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_230
Clark28Round Lake08/10/2020Microcystin12.6000.150YesViewDamROUNCLAR095_20_230
Clark28Round Lake08/03/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_196
Clark28Round Lake08/03/2020Microcystin0.5680.150NoViewDamROUNCLAR095_20_196
Clark28Round Lake07/27/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_173
Clark28Round Lake07/27/2020Microcystin0.3360.150NoViewDamROUNCLAR095_20_173
Clark28Round Lake07/20/2020Anatoxin-a0.0100.010NoNoDamROUNCLAR095_20_151
Clark28Round Lake07/20/2020Microcystin42.6000.150YesNoDamROUNCLAR095_20_151
Clark28Round Lake07/13/2020Anatoxin-a<MDL0.010NoNoDamROUNCLAR095_20_130
Clark28Round Lake07/13/2020Microcystin5.9700.150NoNoDamROUNCLAR095_20_130
Clark28Round Lake07/06/2020Anatoxin-a0.0210.010NoNoDamROUNCLAR095_20_117
Clark28Round Lake07/06/2020Microcystin81.9000.150YesNoDamROUNCLAR095_20_117
Clark28Round Lake06/29/2020Anatoxin-a<MDL0.010NoNo ROUNCLAR095_02_107
Clark28Round Lake06/29/2020Microcystin0.7700.150NoNo ROUNCLAR095_02_107
Clark28Round Lake06/22/2020Anatoxin-a0.0350.010NoViewDamROUNCLAR095_20_093
Clark28Round Lake06/22/2020Microcystin20.2000.150YesViewDamROUNCLAR095_20_093
Clark28Round Lake06/15/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_082
Clark28Round Lake06/15/2020Microcystin<MDL0.150NoViewDamROUNCLAR095_20_082
Clark28Round Lake06/08/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_073
Clark28Round Lake06/08/2020Microcystin<MDL0.150NoViewDamROUNCLAR095_20_073
Clark28Round Lake06/01/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_067
Clark28Round Lake06/01/2020Microcystin5.9300.150NoViewDamROUNCLAR095_20_067
Clark28Round Lake05/26/2020Anatoxin-a0.5970.010NoViewDamROUNCLAR095_20_057
Clark28Round Lake05/26/2020Microcystin8.0500.150YesViewDamROUNCLAR095_20_057
Clark28Round Lake05/19/2020Anatoxin-a0.0320.010NoViewDamROUNCLAR095_20_051
Clark28Round Lake05/19/2020Microcystin0.2190.150NoViewDamROUNCLAR095_20_051
Clark28Round Lake05/11/2020Anatoxin-a0.0110.010NoViewDamROUNCLAR095_20_044
Clark28Round Lake05/11/2020Microcystin0.5800.150NoViewDamROUNCLAR095_20_044
Clark28Round Lake05/05/2020Anatoxin-a0.8810.010NoViewDamROUNCLAR095_20_040
Clark28Round Lake05/05/2020Microcystin7.5900.150NoViewDamROUNCLAR095_20_040
Clark28Round Lake04/28/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_034
Clark28Round Lake04/28/2020Microcystin0.1950.150NoViewDamROUNCLAR095_20_034
Clark28Round Lake04/20/2020Anatoxin-a0.1900.010NoViewDamROUNCLAR095_20_028
Clark28Round Lake04/20/2020Microcystin77.0000.150YesViewDamROUNCLAR095_20_028
Clark28Round Lake04/14/2020Anatoxin-a<MDL0.010NoViewDamROUNCLAR095_20_023
Clark28Round Lake04/14/2020Cylindrospermopsin<MDL0.025NoViewDamROUNCLAR095_20_023
Clark28Round Lake04/14/2020Microcystin1.2900.150NoViewDamROUNCLAR095_20_023
Clark28Round Lake04/14/2020Saxitoxin<MDL0.020NoViewDamROUNCLAR095_20_023
Clark28Round Lake04/09/2020Anatoxin-a<MDL0.010NoView ROUNCLAR095_20_020
Clark28Round Lake04/09/2020Cylindrospermopsin<MDL0.025NoView ROUNCLAR095_20_020
Clark28Round Lake04/09/2020Microcystin0.2950.150NoView ROUNCLAR095_20_020
Clark28Round Lake04/09/2020Saxitoxin<MDL0.020NoView ROUNCLAR095_20_020
Clark28Round Lake06/24/2019Anatoxin-a<MDL0.010NoNo ROUNCLAR095_19_051
Clark28Round Lake06/24/2019Microcystin25.8000.150YesNo ROUNCLAR095_19_051
Clark28Round Lake10/16/2018Anatoxin-a<MDL0.010NoView ROUNCLAR095_18_315
Clark28Round Lake10/16/2018Microcystin4.9900.150NoView ROUNCLAR095_18_315
Clark28Round Lake09/17/2009Anatoxin-a<MDL0.038NoNo  
Clark28Round Lake09/17/2009Microcystin0.7770.050NoNo  

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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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