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.

CountyWRIA NumberSiteCollect DateParameterToxin Conc. (µg/L)MDL (µg/L)Above State GuidelineAdditional InformationSample LocationEcology Tracking Number
Grant41Moses Lake-BH Park06/22/2020Microcystin106.0000.150YesNo BHPAGRAN102_20_088
Grant41Moses Lake-BH Park10/28/2019Microcystin0.5120.150NoNo BHPAGRAN102_19_428
Grant41Moses Lake-BH Park10/21/2019Microcystin1.6700.150NoView BHPAGRAN102_19_412
Grant41Moses Lake-BH Park10/14/2019Microcystin10.6000.150YesNo BHPAGRAN102_19_392
Grant41Moses Lake-BH Park10/07/2019Microcystin19.3000.150YesNo BHPAGRAN102_19_368
Grant41Moses Lake-BH Park09/30/2019Microcystin9.9100.150YesNo BHPAGRAN102_19_344
Grant41Moses Lake-BH Park09/23/2019Microcystin28.5000.150YesNo BHPAGRAN102_19_319
Grant41Moses Lake-BH Park09/16/2019Microcystin18.7000.150YesNo BHPAGRAN102_19_298
Grant41Moses Lake-BH Park09/08/2019Microcystin3.7500.150NoNo BHPAGRAN102_19_265
Grant41Moses Lake-BH Park09/03/2019Microcystin38.5000.150YesNo BHPAGRAN102_19_217
Grant41Moses Lake-BH Park08/26/2019Microcystin130.0000.150YesNo BHPAGRAN102_19_193
Grant41Moses Lake-BH Park08/19/2019Microcystin593.0000.150YesNo BHPAGRAN102_19_173
Grant41Moses Lake-BH Park08/05/2019Anatoxin-a0.0180.010NoView BHPAGRAN102_19_113
Grant41Moses Lake-BH Park08/05/2019Microcystin36.5000.150YesView BHPAGRAN102_19_113
Grant41Moses Lake-BH Park07/30/2019Anatoxin-a0.0170.010NoView BHPAGRAN102_19_102
Grant41Moses Lake-BH Park07/30/2019Microcystin90.7000.150YesView BHPAGRAN102_19_102
Grant41Moses Lake-BH Park07/22/2019Anatoxin-a0.0160.010NoView BHPAGRAN102_19_091
Grant41Moses Lake-BH Park07/22/2019Microcystin187.0000.150YesView BHPAGRAN102_19_091
Grant41Moses Lake-BH Park07/15/2019Anatoxin-a<MDL0.010NoView BHPAGRAN102_19_085
Grant41Moses Lake-BH Park07/15/2019Microcystin5.8900.150NoView BHPAGRAN102_19_085
Grant41Moses Lake-BH Park11/05/2018Microcystin0.9100.150NoView BHPAGRAN102_18_362
Grant41Moses Lake-BH Park10/29/2018Microcystin0.6340.150NoView BHPAGRAN102_18_352
Grant41Moses Lake-BH Park10/23/2018Microcystin582.0000.150YesView BHPAGRAN102_18_336
Grant41Moses Lake-BH Park10/15/2018Microcystin371.0000.150YesView BHPAGRAN102_18_309
Grant41Moses Lake-BH Park10/08/2018Microcystin465.0000.150YesView BHPAGRAN102_18_294
Grant41Moses Lake-BH Park10/01/2018Microcystin1700.0000.150YesView BHPAGRAN102_18_279
Grant41Moses Lake-BH Park09/26/2018Microcystin1389.0000.150YesView BHPAGRAN102_18_266
Grant41Moses Lake-BH Park09/17/2018Anatoxin-a0.2300.010NoView BHPAGRAN102_18_234
Grant41Moses Lake-BH Park09/17/2018Cylindrospermopsin<MDL0.025NoView BHPAGRAN102_18_234
Grant41Moses Lake-BH Park09/17/2018Microcystin335.0000.150YesView BHPAGRAN102_18_234
Grant41Moses Lake-BH Park09/17/2018Saxitoxin<MDL0.020NoView BHPAGRAN102_18_234
Grant41Moses Lake-BH Park10/03/2011Microcystin0.8090.050NoNo  

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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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