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 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:

County	WRIA Number	Site	Collect Date	Parameter	Toxin Conc. (µg/L)	MDL (µg/L)	Above State Guideline	Additional Information	Sample Location	Ecology Tracking Number
Klickitat	29	Rowland Lake	09/21/2023	Anatoxin-a	0.180	0.010	No	No	West Edge	ROWLKLIC098_23_310
Klickitat	29	Rowland Lake	09/21/2023	Anatoxin-a	0.057	0.010	No	No	Boat Launch	ROWLKLIC098_23_311
Klickitat	29	Rowland Lake	09/21/2023	Cylindrospermopsin	<MDL	0.025	No	No	Boat Launch	ROWLKLIC098_23_311
Klickitat	29	Rowland Lake	09/21/2023	Cylindrospermopsin	<MDL	0.025	No	No	West Edge	ROWLKLIC098_23_310
Klickitat	29	Rowland Lake	09/21/2023	Microcystin	10.000	0.150	Yes	No	West Edge	ROWLKLIC098_23_310
Klickitat	29	Rowland Lake	09/21/2023	Microcystin	10.000	0.150	Yes	No	Boat Launch	ROWLKLIC098_23_311
Klickitat	29	Rowland Lake	09/21/2023	Saxitoxin	0.026	0.020	No	No	Boat Launch	ROWLKLIC098_23_311
Klickitat	29	Rowland Lake	09/21/2023	Saxitoxin	0.046	0.020	No	No	West Edge	ROWLKLIC098_23_310
Klickitat	29	Rowland Lake	08/08/2023	Anatoxin-a	0.043	0.010	No	View	Near Boat Launch	ROWLKLIC098_23_153
Klickitat	29	Rowland Lake	08/08/2023	Cylindrospermopsin	<MDL	0.025	No	View	Near Boat Launch	ROWLKLIC098_23_153
Klickitat	29	Rowland Lake	08/08/2023	Microcystin	0.316	0.150	No	View	Near Boat Launch	ROWLKLIC098_23_153
Klickitat	29	Rowland Lake	08/08/2023	Saxitoxin	<MDL	0.020	No	View	Near Boat Launch	ROWLKLIC098_23_153
Klickitat	29	Rowland Lake	09/07/2021	Anatoxin-a	2.040	0.010	Yes	View	Boat Launch	ROWLKLIC098_21_337
Klickitat	29	Rowland Lake	09/07/2021	Microcystin	18.000	0.150	Yes	View	Boat Launch	ROWLKLIC098_21_337
Klickitat	29	Rowland Lake	08/17/2021	Anatoxin-a	0.471	0.010	No	View	Rowland	RowlKlic098_21_264
Klickitat	29	Rowland Lake	08/17/2021	Microcystin	1.490	0.150	No	View	Rowland	RowlKlic098_21_264
Klickitat	29	Rowland Lake	08/10/2021	Anatoxin-a	0.099	0.010	No	View	Boat Launch	ROWLKLIC098_21_226
Klickitat	29	Rowland Lake	08/10/2021	Microcystin	10.200	0.150	Yes	View	Boat Launch	ROWLKLIC098_21_226
Klickitat	29	Rowland Lake	06/08/2021	Anatoxin-a	<MDL	0.010	No	View	Near boat launch.	ROWLKLIC098_21_069
Klickitat	29	Rowland Lake	06/08/2021	Cylindrospermopsin	<MDL	0.025	No	View	Near boat launch.	ROWLKLIC098_21_069
Klickitat	29	Rowland Lake	06/08/2021	Microcystin	<MDL	0.150	No	View	Near boat launch.	ROWLKLIC098_21_069
Klickitat	29	Rowland Lake	06/08/2021	Saxitoxin	<MDL	0.020	No	View	Near boat launch.	ROWLKLIC098_21_069
Klickitat	29	Rowland Lake	08/20/2020	Anatoxin-a	<MDL	0.010	No	View	Boat Launch Area	ROWLKLIC098_20_291
Klickitat	29	Rowland Lake	08/20/2020	Microcystin	16.800	0.150	Yes	View	Boat Launch Area	ROWLKLIC098_20_291
Klickitat	29	Rowland Lake	10/02/2019	Anatoxin-a	0.294	0.010	No	No		ROWLKLIC098_19_362
Klickitat	29	Rowland Lake	10/02/2019	Anatoxin-a	0.025	0.010	No	No		ROWLKLIC098_19_361
Klickitat	29	Rowland Lake	10/02/2019	Microcystin	34.700	0.150	Yes	No		ROWLKLIC098_19_361
Klickitat	29	Rowland Lake	10/02/2019	Microcystin	575.000	0.150	Yes	No		ROWLKLIC098_19_362
Klickitat	29	Rowland Lake	07/26/2016	Anatoxin-a	0.187	0.010	No	View		ROWLKLIC098_16_118
Klickitat	29	Rowland Lake	07/26/2016	Microcystin	NA	0.160	No	View		ROWLKLIC098_16_118
Klickitat	29	Rowland Lake	07/21/2016	Anatoxin-a	2.370	0.010	Yes	View		ROWLKLIC098_16_102
Klickitat	29	Rowland Lake	07/21/2016	Microcystin	<MDL	0.200	No	View		ROWLKLIC098_16_102
Klickitat	29	Rowland Lake	07/30/2015	Anatoxin-a	0.148	0.010	No	View		ROWLKLIC098_15_242
Klickitat	29	Rowland Lake	07/30/2015	Anatoxin-a	0.105	0.010	No	View		ROWLKLIC098_15_240
Klickitat	29	Rowland Lake	07/30/2015	Anatoxin-a	0.144	0.010	No	View		ROWLKLIC098_15_241
Klickitat	29	Rowland Lake	07/30/2015	Microcystin	0.373	0.160	No	View		ROWLKLIC098_15_241
Klickitat	29	Rowland Lake	07/30/2015	Microcystin	0.216	0.160	No	View		ROWLKLIC098_15_240
Klickitat	29	Rowland Lake	07/30/2015	Microcystin	<MDL	0.160	No	View		ROWLKLIC098_15_242
Klickitat	29	Rowland Lake	06/10/2015	Anatoxin-a	0.195	0.010	No	View		ROWLKLIC098_15_141
Klickitat	29	Rowland Lake	06/10/2015	Anatoxin-a	0.087	0.010	No	View		ROWLKLIC098_15_142
Klickitat	29	Rowland Lake	06/10/2015	Microcystin	<MDL	0.160	No	View		ROWLKLIC098_15_142
Klickitat	29	Rowland Lake	06/10/2015	Microcystin	<MDL	0.160	No	View		ROWLKLIC098_15_141
Klickitat	29	Rowland Lake	10/02/2014	Anatoxin-a	<MDL	0.010	No	View		ROWLKLIC14_278
Klickitat	29	Rowland Lake	10/02/2014	microcystin	24.300	0.160	Yes	View		ROWLKLIC14_278
Klickitat	29	Rowland Lake	09/08/2014	Anatoxin-a	<MDL	0.010	No	View		ROWLKLIC14_219
Klickitat	29	Rowland Lake	09/08/2014	Microcystin	0.336	0.160	No	View		ROWLKLIC14_219
Klickitat	29	Rowland Lake	07/01/2013	Anatoxin-a	<MDL	0.010	No	No		ROWLKLIC13_02
Klickitat	29	Rowland Lake	07/01/2013	Microcystin	<MDL	0.160	No	No		ROWLKLIC13_02
Klickitat	29	Rowland Lake	06/18/2013	Anatoxin-a	0.045	0.010	No	View		ROWLKLIC13_01
Klickitat	29	Rowland Lake	06/18/2013	Microcystin	<MDL	0.050	No	View		ROWLKLIC13_01
Klickitat	29	Rowland Lake	09/28/2011	Anatoxin-a	<MDL	0.019	No	No
Klickitat	29	Rowland Lake	09/28/2011	Anatoxin-a	<MDL	0.019	No	No
Klickitat	29	Rowland Lake	09/28/2011	Microcystin	0.346	0.050	No	No
Klickitat	29	Rowland Lake	09/28/2011	Microcystin	0.089	0.050	No	No
Klickitat	29	Rowland Lake	05/06/2010	Microcystin	<MDL	0.050	No	View
Klickitat	29	Rowland Lake	10/20/2009	Microcystin	0.138	0.050	No	No
Klickitat	29	Rowland Lake	10/15/2009	Microcystin	0.102	0.050	No	No
Klickitat	29	Rowland Lake	10/06/2009	Microcystin	0.413	0.050	No	No
Klickitat	29	Rowland Lake	09/28/2009	Microcystin	0.161	0.050	No	No
Klickitat	29	Rowland Lake	09/22/2009	Anatoxin-a	<MDL	0.300	No	No
Klickitat	29	Rowland Lake	09/22/2009	Microcystin	8.110	0.050	Yes	No
Klickitat	29	Rowland Lake	08/24/2009	Microcystin	0.515	0.050	No	No

Get data

Export data

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.

Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. For questions on the Freshwater Algae Program please contact . For questions on the content or functionality of the site please contact . For information or concerns about a current Algal Bloom please contact your local Health Department.