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
Thurston	23	Deep Lake	05/05/2026	Anatoxin-a	<MDL	0.010	No	No		DEEPTHUR088_26_016
Thurston	23	Deep Lake	05/05/2026	Cylindrospermopsin	<MDL	0.050	No	No		DEEPTHUR088_26_016
Thurston	23	Deep Lake	05/05/2026	Microcystin	<MDL	0.150	No	No		DEEPTHUR088_26_016
Thurston	23	Deep Lake	09/25/2025	Anatoxin-a	0.040	0.010	No	No	Public Boat Launch	DEEPTHUR088_25_394
Thurston	23	Deep Lake	09/25/2025	Microcystin	<MDL	0.300	No	No	Public Boat Launch	DEEPTHUR088_25_394
Thurston	23	Deep Lake	08/26/2025	Anatoxin-a	<MDL	0.010	No	No	Swimming beach shoreline area	DEEPTHUR088_25_287
Thurston	23	Deep Lake	08/26/2025	Anatoxin-a	<MDL	0.010	No	No	Swimming beach shoreline area	DEEPTHUR088_25_288
Thurston	23	Deep Lake	08/26/2025	Anatoxin-a	0.010	0.010	No	No	Swimming beach shoreline area	DEEPTHUR088_25_289
Thurston	23	Deep Lake	08/26/2025	Cylindrospermopsin	0.032	0.025	No	No	Swimming beach shoreline area	DEEPTHUR088_25_289
Thurston	23	Deep Lake	08/26/2025	Microcystin	0.416	0.300	No	No	Swimming beach shoreline area	DEEPTHUR088_25_289
Thurston	23	Deep Lake	08/26/2025	Microcystin	0.760	0.300	No	No	Swimming beach shoreline area	DEEPTHUR088_25_288
Thurston	23	Deep Lake	08/26/2025	Microcystin	1.250	0.300	No	No	Swimming beach shoreline area	DEEPTHUR088_25_287
Thurston	23	Deep Lake	08/26/2025	Saxitoxin	0.164	0.022	No	No	Swimming beach shoreline area	DEEPTHUR088_25_289
Thurston	23	Deep Lake	10/05/2021	Anatoxin-a	0.011	0.010	No	View	Boat Launch	DEEPTHUR088_21_477
Thurston	23	Deep Lake	10/05/2021	Microcystin	0.154	0.150	No	View	Boat Launch	DEEPTHUR088_21_477
Thurston	23	Deep Lake	09/28/2021	Anatoxin-a	<MDL	0.010	No	View	Boat Launch	DEEPTHUR088_21_453
Thurston	23	Deep Lake	09/28/2021	Microcystin	<MDL	0.150	No	View	Boat Launch	DEEPTHUR088_21_453
Thurston	23	Deep Lake	09/23/2021	Anatoxin-a	1.410	0.010	Yes	View	Boat Launch	DEEPTHUR088_21_425
Thurston	23	Deep Lake	09/23/2021	Cylindrospermopsin	<MDL	0.025	No	View	Boat Launch	DEEPTHUR088_21_425
Thurston	23	Deep Lake	09/23/2021	Microcystin	1.890	0.150	No	View	Boat Launch	DEEPTHUR088_21_425
Thurston	23	Deep Lake	09/23/2021	Saxitoxin	0.022	0.020	No	View	Boat Launch	DEEPTHUR088_21_425
Thurston	23	Deep Lake	10/01/2019	Microcystin	3.380	0.150	No	No		DEEPTHUR088_19_353
Thurston	23	Deep Lake	09/24/2019	Anatoxin-a	0.015	0.010	No	No		DEEPTHUR088_19_327
Thurston	23	Deep Lake	09/24/2019	Cylindrospermopsin	<MDL	0.025	No	No		DEEPTHUR088_19_327
Thurston	23	Deep Lake	09/24/2019	Microcystin	1.740	0.150	No	No		DEEPTHUR088_19_327
Thurston	23	Deep Lake	09/24/2019	Saxitoxin	0.860	0.020	No	No		DEEPTHUR088_19_327
Thurston	23	Deep Lake	09/19/2019	Anatoxin-a	0.019	0.010	No	No		DEEPTHUR088_19_311
Thurston	23	Deep Lake	09/19/2019	Cylindrospermopsin	<MDL	0.025	No	No		DEEPTHUR088_19_311
Thurston	23	Deep Lake	09/19/2019	Microcystin	2.210	0.150	No	No		DEEPTHUR088_19_311
Thurston	23	Deep Lake	09/19/2019	Saxitoxin	0.153	0.020	No	No		DEEPTHUR088_19_311
Thurston	23	Deep Lake	09/12/2019	Anatoxin-a	0.016	0.010	No	No		DeepThur088_19_293
Thurston	23	Deep Lake	09/12/2019	Microcystin	2.750	0.150	No	No		DeepThur088_19_293
Thurston	23	Deep Lake	09/12/2019	Saxitoxin	0.612	0.020	No	No		DeepThur088_19_293
Thurston	23	Deep Lake	09/04/2019	Anatoxin-a	0.010	0.010	No	No		DEEPTHUR088_19_251
Thurston	23	Deep Lake	09/04/2019	Microcystin	0.661	0.150	No	No		DEEPTHUR088_19_251
Thurston	23	Deep Lake	08/27/2019	Anatoxin-a	0.026	0.010	No	No		DEEPTHUR088_19_207
Thurston	23	Deep Lake	08/27/2019	Microcystin	1.440	0.150	No	No		DEEPTHUR088_19_207
Thurston	23	Deep Lake	08/20/2019	Anatoxin-a	0.035	0.010	No	No		DEEPTHUR088_19_185
Thurston	23	Deep Lake	08/20/2019	Cylindrospermopsin	<MDL	0.025	No	No		DEEPTHUR088_19_185
Thurston	23	Deep Lake	08/20/2019	Microcystin	1.240	0.150	No	No		DEEPTHUR088_19_185
Thurston	23	Deep Lake	08/20/2019	Saxitoxin	0.206	0.020	No	No		DEEPTHUR088_19_185
Thurston	23	Deep Lake	08/21/2018	Anatoxin-a	0.028	0.010	No	View		DEEPTHUR088_18_179
Thurston	23	Deep Lake	08/21/2018	Microcystin	0.200	0.150	No	View		DEEPTHUR088_18_179
Thurston	23	Deep Lake	08/15/2018	Anatoxin-a	0.035	0.010	No	View		DEEPTHUR088_18_163
Thurston	23	Deep Lake	08/15/2018	Cylindrospermopsin	<MDL	0.025	No	View		DEEPTHUR088_18_163
Thurston	23	Deep Lake	08/15/2018	Microcystin	2.210	0.150	No	View		DEEPTHUR088_18_163
Thurston	23	Deep Lake	08/15/2018	Saxitoxin	<MDL	0.020	No	View		DEEPTHUR088_18_163
Thurston	23	Deep Lake	08/16/2017	Anatoxin-a	0.519	0.010	No	No		DEEPTHUR088_17_186
Thurston	23	Deep Lake	08/16/2017	Microcystin	1.300	0.150	No	No		DEEPTHUR088_17_186
Thurston	23	Deep Lake	11/09/2015	Anatoxin-a	<MDL	0.010	No	No		DEEPTHUR088_15_514
Thurston	23	Deep Lake	11/09/2015	Microcystin	12.000	0.160	Yes	No		DEEPTHUR088_15_514
Thurston	23	Deep Lake	11/02/2015	Anatoxin-a	<MDL	0.010	No	No		DEEPTHUR088_15_505
Thurston	23	Deep Lake	11/02/2015	Microcystin	4.860	0.160	No	No		DEEPTHUR088_15_505
Thurston	23	Deep Lake	10/26/2015	Microcystin	<MDL	0.160	No	No		DEEPTHUR088_15_494
Thurston	23	Deep Lake	10/19/2015	Microcystin	72.100	0.160	Yes	No		deepthur088_15_477
Thurston	23	Deep Lake	10/13/2015	Anatoxin-a	<MDL	0.010	No	No		DEEPTHUR088_15_464
Thurston	23	Deep Lake	10/13/2015	Microcystin	15.900	0.160	Yes	No		DEEPTHUR088_15_464
Thurston	23	Deep Lake	10/05/2015	Anatoxin-a	0.026	0.010	No	No		DEEPTHUR088_15_444
Thurston	23	Deep Lake	10/05/2015	Microcystin	4.920	0.160	No	No		DEEPTHUR088_15_444
Thurston	23	Deep Lake	09/23/2015	Microcystin	8.750	0.160	Yes	No		DEEPTHUR088_15_417
Thurston	23	Deep Lake	08/19/2015	Anatoxin-a	0.067	0.010	No	View		DEEPTHUR088_15_317
Thurston	23	Deep Lake	08/19/2015	Microcystin	1.550	0.160	No	View		DEEPTHUR088_15_317
Thurston	23	Deep Lake	08/19/2015	Saxitoxin	0.261	0.020	No	View		DEEPTHUR088_15_317
Thurston	23	Deep Lake	10/28/2010	Microcystin	<MDL	0.050	No	View
Thurston	23	Deep Lake	10/19/2010	Microcystin	0.811	0.050	No	View
Thurston	23	Deep Lake	10/12/2010	Microcystin	1.730	0.050	No	View
Thurston	23	Deep Lake	10/05/2010	Microcystin	4.490	0.050	No	View
Thurston	23	Deep Lake	09/28/2010	Microcystin	2.970	0.050	No	View

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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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