Algae - Detail search

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 toxicalgae 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:

County	WRIA Number	Site	Collect Date	Parameter	Toxin Conc. (µg/L)	MDL (µg/L)	Above State Guideline	Additional Information	Sample Location	Ecology Tracking Number
Grant	41	Moses Lake South	11/04/2024	Microcystin	<MDL	0.150	No	View	North outlet	MOSEGRAN116_24_455
Grant	41	Moses Lake South	09/10/2024	Microcystin	226.000	0.300	Yes	View	Sand Dunes north dam outlet	MOSEGRAN116_24_296
Grant	41	Moses Lake South	09/18/2023	Microcystin	0.478	0.150	No	No	North outlet	MOSEGRAN116_23_297
Grant	41	Moses Lake South	09/18/2023	Microcystin	<MDL	0.150	No	No		MOSEGRAN116_23_298
Grant	41	Moses Lake South	08/21/2023	Anatoxin-a	<MDL	0.010	No	No	Sand Dunes South beach	MOSEGRAN116_23_208
Grant	41	Moses Lake South	08/21/2023	Cylindrospermopsin	<MDL	0.025	No	No	Sand Dunes South beach	MOSEGRAN116_23_208
Grant	41	Moses Lake South	08/21/2023	Microcystin	0.635	0.150	No	No	Sand Dunes South beach	MOSEGRAN116_23_208
Grant	41	Moses Lake South	08/21/2023	Saxitoxin	0.020	0.020	No	No	Sand Dunes South beach	MOSEGRAN116_23_208
Grant	41	Moses Lake South	11/07/2022	Microcystin	6.380	0.150	No	View	Sand Dunes South Outlet Dam	MOSEGRAN116_22_459
Grant	41	Moses Lake South	10/03/2022	Microcystin	4.380	0.150	No	View	Sand Dunes Mud Flats boat beach	MOSEGRAN116_22_355
Grant	41	Moses Lake South	09/26/2022	Microcystin	3.460	0.150	No	View	Sand Dunes South dam outlet	MOSEGRAN116_22_336
Grant	41	Moses Lake South	09/27/2020	Microcystin	505.000	0.150	Yes	View	Sand Dunes Swim Area	MOSEGRAN116_20_413
Grant	41	Moses Lake South	07/27/2020	Microcystin	29.100	0.150	Yes	View	Sand Dunes Swim Area	MOSEGRAN116_20_168
Grant	41	Moses Lake South	11/04/2019	Microcystin	1.090	0.150	No	No		MOSEGRAN116_19_444
Grant	41	Moses Lake South	10/28/2019	Microcystin	4.000	0.150	No	No		MOSEGRAN116_19_429
Grant	41	Moses Lake South	10/21/2019	Microcystin	7.880	0.150	No	View		MOSEGRAN116_19_413
Grant	41	Moses Lake South	10/14/2019	Microcystin	5.840	0.150	No	No		MOSEGRAN116_19_391
Grant	41	Moses Lake South	10/07/2019	Microcystin	6.860	0.150	No	No		MOSEGRAN116_19_367
Grant	41	Moses Lake South	09/30/2019	Microcystin	7.750	0.150	No	No		MOSEGRAN116_19_343
Grant	41	Moses Lake South	09/23/2019	Microcystin	1.630	0.150	No	No		MOSEGRAN116_19_320
Grant	41	Moses Lake South	09/16/2019	Microcystin	1.100	0.150	No	No		MOSEGRAN116_19_299
Grant	41	Moses Lake South	09/03/2019	Microcystin	105.000	0.150	Yes	No		MOSEGRAN116_19_225
Grant	41	Moses Lake South	08/19/2019	Microcystin	2.670	0.150	No	No		MOSEGRAN116_19_174
Grant	41	Moses Lake South	08/19/2019	Microcystin	4.460	0.150	No	No		MOSEGRAN116_19_190
Grant	41	Moses Lake South	08/05/2019	Anatoxin-a	<MDL	0.010	No	View		MOSEGRAN116_19_114
Grant	41	Moses Lake South	08/05/2019	Microcystin	123.000	0.150	Yes	View		MOSEGRAN116_19_114
Grant	41	Moses Lake South	07/30/2019	Anatoxin-a	<MDL	0.010	No	View		MOSEGRAN116_19_103
Grant	41	Moses Lake South	07/30/2019	Microcystin	44.000	0.150	Yes	View		MOSEGRAN116_19_103
Grant	41	Moses Lake South	10/23/2018	Microcystin	12.900	0.150	Yes	View		MOSEGRAN116_18_337
Grant	41	Moses Lake South	10/15/2018	Microcystin	4.200	0.150	No	View		MOSEGRAN116_18_310
Grant	41	Moses Lake South	09/26/2018	Microcystin	1366.000	0.150	Yes	View		MOSEGRAN116_18_267
Grant	41	Moses Lake South	10/31/2011	Microcystin	0.136	0.050	No	No
Grant	41	Moses Lake South	10/26/2011	Microcystin	0.413	0.050	No	No
Grant	41	Moses Lake South	10/26/2011	Microcystin	0.369	0.050	No	No
Grant	41	Moses Lake South	10/17/2011	Microcystin	73.900	0.050	Yes	No

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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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