County Summaries
Here is a table showing toxins in lakes by counties. You can custom sort the table by selecting the collumn header.
| County | Parameter | Number of
Samples | Number of
Exceedings | Number of
Lakes Exceeded | Number of
Lakes Sampled | From
Year | To
Year |
| Adams | Anatoxin-a | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Adams | Cylindrospermopsin | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Adams | Microcystin | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Adams | Saxitoxin | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Benton | Anatoxin-a | 105 | 15 | 2 | 12 | 2017 | 2023 |
| Benton | Cylindrospermopsin | 17 | 0 | 0 | 6 | 2020 | 2023 |
| Benton | Microcystin | 29 | 1 | 1 | 8 | 2017 | 2023 |
| Benton | Saxitoxin | 14 | 0 | 0 | 6 | 2020 | 2023 |
| Chelan | Anatoxin-a | 15 | 1 | 1 | 2 | 2014 | 2023 |
| Chelan | Cylindrospermopsin | 8 | 0 | 0 | 1 | 2018 | 2023 |
| Chelan | Microcystin | 21 | 6 | 1 | 2 | 2014 | 2023 |
| Chelan | Saxitoxin | 8 | 0 | 0 | 1 | 2018 | 2023 |
| Clallam | Anatoxin-a | 10 | 0 | 0 | 3 | 2013 | 2019 |
| Clallam | Cylindrospermopsin | 4 | 0 | 0 | 2 | 2018 | 2019 |
| Clallam | Microcystin | 11 | 1 | 1 | 4 | 2009 | 2019 |
| Clallam | Saxitoxin | 4 | 0 | 0 | 2 | 2018 | 2019 |
| Clark | Anatoxin-a | 318 | 8 | 4 | 8 | 2009 | 2023 |
| Clark | Cylindrospermopsin | 33 | 0 | 0 | 6 | 2014 | 2023 |
| Clark | Microcystin | 335 | 72 | 3 | 8 | 2007 | 2023 |
| Clark | Saxitoxin | 30 | 0 | 0 | 6 | 2014 | 2023 |
| Columbia | Anatoxin-a | 5 | 0 | 0 | 2 | 2012 | 2023 |
| Columbia | Cylindrospermopsin | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Columbia | Microcystin | 6 | 1 | 1 | 2 | 2012 | 2023 |
| Columbia | Saxitoxin | 1 | 0 | 0 | 1 | 2021 | 2021 |
| Cowlitz | Anatoxin-a | 46 | 0 | 0 | 3 | 2009 | 2022 |
| Cowlitz | Cylindrospermopsin | 24 | 0 | 0 | 3 | 2016 | 2022 |
| Cowlitz | Microcystin | 67 | 0 | 0 | 4 | 2008 | 2022 |
| Cowlitz | Saxitoxin | 8 | 0 | 0 | 2 | 2019 | 2022 |
| Douglas | Anatoxin-a | 187 | 84 | 1 | 4 | 2009 | 2023 |
| Douglas | Cylindrospermopsin | 2 | 0 | 0 | 2 | 2022 | 2023 |
| Douglas | Microcystin | 189 | 1 | 1 | 4 | 2007 | 2023 |
| Douglas | Saxitoxin | 2 | 0 | 0 | 2 | 2022 | 2023 |
| Ferry | Anatoxin-a | 5 | 1 | 1 | 2 | 2013 | 2023 |
| Ferry | Cylindrospermopsin | 2 | 0 | 0 | 1 | 2020 | 2021 |
| Ferry | Microcystin | 5 | 0 | 0 | 2 | 2013 | 2023 |
| Ferry | Saxitoxin | 2 | 0 | 0 | 1 | 2020 | 2021 |
| Franklin | Anatoxin-a | 88 | 1 | 1 | 13 | 2015 | 2023 |
| Franklin | Cylindrospermopsin | 8 | 0 | 0 | 5 | 2020 | 2023 |
| Franklin | Microcystin | 85 | 26 | 2 | 8 | 2015 | 2023 |
| Franklin | Saxitoxin | 7 | 0 | 0 | 4 | 2020 | 2023 |
| Garfield | Anatoxin-a | 2 | 0 | 0 | 1 | 2021 | 2021 |
| Garfield | Cylindrospermopsin | 2 | 0 | 0 | 1 | 2021 | 2021 |
| Garfield | Microcystin | 2 | 0 | 0 | 1 | 2021 | 2021 |
| Grant | Anatoxin-a | 35 | 0 | 0 | 12 | 2017 | 2023 |
| Grant | Cylindrospermopsin | 16 | 0 | 0 | 7 | 2018 | 2023 |
| Grant | Microcystin | 303 | 95 | 13 | 24 | 2007 | 2023 |
| Grant | Saxitoxin | 15 | 0 | 0 | 6 | 2018 | 2023 |
| Grays Harbor | Anatoxin-a | 21 | 0 | 0 | 5 | 2009 | 2022 |
| Grays Harbor | Cylindrospermopsin | 6 | 0 | 0 | 4 | 2019 | 2022 |
| Grays Harbor | Microcystin | 37 | 7 | 2 | 6 | 2008 | 2022 |
| Grays Harbor | Saxitoxin | 6 | 0 | 0 | 4 | 2019 | 2022 |
| Island | Anatoxin-a | 137 | 39 | 3 | 8 | 2009 | 2023 |
| Island | Cylindrospermopsin | 24 | 0 | 0 | 4 | 2013 | 2023 |
| Island | Microcystin | 160 | 38 | 3 | 9 | 2007 | 2023 |
| Island | Saxitoxin | 24 | 0 | 0 | 4 | 2012 | 2023 |
| Jefferson | Anatoxin-a | 545 | 98 | 2 | 14 | 2009 | 2023 |
| Jefferson | Cylindrospermopsin | 15 | 0 | 0 | 5 | 2018 | 2023 |
| Jefferson | Microcystin | 639 | 30 | 4 | 16 | 2007 | 2023 |
| Jefferson | Saxitoxin | 15 | 0 | 0 | 5 | 2018 | 2023 |
| King | Anatoxin-a | 6122 | 16 | 6 | 96 | 2009 | 2023 |
| King | Cylindrospermopsin | 113 | 0 | 0 | 52 | 2009 | 2023 |
| King | Microcystin | 8688 | 277 | 35 | 100 | 2007 | 2023 |
| King | Saxitoxin | 123 | 0 | 0 | 54 | 2009 | 2023 |
| Kitsap | Anatoxin-a | 81 | 4 | 2 | 9 | 2009 | 2023 |
| Kitsap | Cylindrospermopsin | 11 | 0 | 0 | 5 | 2013 | 2022 |
| Kitsap | Microcystin | 171 | 29 | 4 | 13 | 2007 | 2023 |
| Kitsap | Saxitoxin | 15 | 0 | 0 | 7 | 2012 | 2022 |
| Kittitas | Anatoxin-a | 26 | 0 | 0 | 8 | 2012 | 2023 |
| Kittitas | Cylindrospermopsin | 9 | 0 | 0 | 7 | 2018 | 2022 |
| Kittitas | Microcystin | 28 | 5 | 1 | 8 | 2012 | 2023 |
| Kittitas | Saxitoxin | 10 | 0 | 0 | 7 | 2018 | 2022 |
| Klickitat | Anatoxin-a | 56 | 3 | 2 | 8 | 2009 | 2023 |
| Klickitat | Cylindrospermopsin | 11 | 0 | 0 | 4 | 2018 | 2023 |
| Klickitat | Microcystin | 62 | 12 | 3 | 8 | 2009 | 2023 |
| Klickitat | Saxitoxin | 9 | 0 | 0 | 4 | 2018 | 2023 |
| Lewis | Anatoxin-a | 6 | 0 | 0 | 3 | 2009 | 2022 |
| Lewis | Cylindrospermopsin | 3 | 0 | 0 | 2 | 2020 | 2022 |
| Lewis | Microcystin | 13 | 0 | 0 | 4 | 2007 | 2022 |
| Lewis | Saxitoxin | 3 | 0 | 0 | 2 | 2020 | 2022 |
| Lincoln | Anatoxin-a | 3 | 0 | 0 | 2 | 2015 | 2017 |
| Lincoln | Microcystin | 5 | 1 | 1 | 3 | 2011 | 2023 |
| Mason | Anatoxin-a | 30 | 0 | 0 | 14 | 2012 | 2023 |
| Mason | Cylindrospermopsin | 8 | 0 | 0 | 7 | 2018 | 2023 |
| Mason | Microcystin | 36 | 0 | 0 | 14 | 2007 | 2023 |
| Mason | Saxitoxin | 8 | 0 | 0 | 7 | 2018 | 2023 |
| Okanogan | Anatoxin-a | 10 | 1 | 1 | 5 | 2011 | 2022 |
| Okanogan | Cylindrospermopsin | 5 | 0 | 0 | 3 | 2014 | 2022 |
| Okanogan | Microcystin | 15 | 1 | 1 | 6 | 2007 | 2022 |
| Okanogan | Saxitoxin | 5 | 0 | 0 | 3 | 2014 | 2022 |
| Pacific | Anatoxin-a | 7 | 0 | 0 | 3 | 2015 | 2022 |
| Pacific | Cylindrospermopsin | 4 | 0 | 0 | 2 | 2019 | 2022 |
| Pacific | Microcystin | 7 | 2 | 1 | 3 | 2015 | 2022 |
| Pacific | Saxitoxin | 4 | 0 | 0 | 2 | 2019 | 2022 |
| Pend Oreille | Anatoxin-a | 4 | 0 | 0 | 4 | 2012 | 2023 |
| Pend Oreille | Cylindrospermopsin | 2 | 0 | 0 | 2 | 2023 | 2023 |
| Pend Oreille | Microcystin | 4 | 0 | 0 | 4 | 2012 | 2023 |
| Pend Oreille | Saxitoxin | 1 | 0 | 0 | 1 | 2023 | 2023 |
| Pierce | Anatoxin-a | 761 | 32 | 5 | 32 | 2009 | 2023 |
| Pierce | Cylindrospermopsin | 70 | 0 | 0 | 16 | 2009 | 2023 |
| Pierce | Microcystin | 1139 | 372 | 17 | 36 | 2007 | 2023 |
| Pierce | Saxitoxin | 104 | 1 | 1 | 20 | 2009 | 2022 |
| San Juan | Anatoxin-a | 9 | 0 | 0 | 2 | 2019 | 2022 |
| San Juan | Cylindrospermopsin | 4 | 0 | 0 | 2 | 2019 | 2022 |
| San Juan | Microcystin | 14 | 3 | 1 | 3 | 2019 | 2023 |
| San Juan | Saxitoxin | 4 | 0 | 0 | 2 | 2019 | 2022 |
| Skagit | Anatoxin-a | 168 | 16 | 2 | 14 | 2010 | 2023 |
| Skagit | Cylindrospermopsin | 18 | 0 | 0 | 12 | 2012 | 2023 |
| Skagit | Microcystin | 190 | 50 | 3 | 15 | 2010 | 2023 |
| Skagit | Saxitoxin | 18 | 0 | 0 | 12 | 2012 | 2023 |
| Skamania | Anatoxin-a | 4 | 0 | 0 | 3 | 2017 | 2022 |
| Skamania | Cylindrospermopsin | 2 | 0 | 0 | 2 | 2019 | 2022 |
| Skamania | Microcystin | 4 | 0 | 0 | 3 | 2017 | 2022 |
| Skamania | Saxitoxin | 2 | 0 | 0 | 2 | 2019 | 2022 |
| Snohomish | Anatoxin-a | 528 | 0 | 0 | 34 | 2009 | 2023 |
| Snohomish | Cylindrospermopsin | 83 | 0 | 0 | 26 | 2009 | 2023 |
| Snohomish | Microcystin | 638 | 105 | 12 | 35 | 2007 | 2023 |
| Snohomish | Saxitoxin | 85 | 0 | 0 | 26 | 2009 | 2023 |
| Spokane | Anatoxin-a | 66 | 4 | 1 | 16 | 2009 | 2023 |
| Spokane | Cylindrospermopsin | 20 | 0 | 0 | 11 | 2016 | 2023 |
| Spokane | Microcystin | 91 | 22 | 5 | 17 | 2008 | 2023 |
| Spokane | Saxitoxin | 22 | 0 | 0 | 10 | 2010 | 2023 |
| Stevens | Anatoxin-a | 17 | 0 | 0 | 5 | 2012 | 2023 |
| Stevens | Cylindrospermopsin | 10 | 0 | 0 | 4 | 2012 | 2023 |
| Stevens | Microcystin | 25 | 8 | 1 | 5 | 2009 | 2023 |
| Stevens | Saxitoxin | 10 | 0 | 0 | 4 | 2012 | 2023 |
| Thurston | Anatoxin-a | 576 | 25 | 5 | 22 | 2009 | 2023 |
| Thurston | Cylindrospermopsin | 114 | 0 | 0 | 16 | 2012 | 2023 |
| Thurston | Microcystin | 723 | 111 | 9 | 23 | 2008 | 2023 |
| Thurston | Saxitoxin | 156 | 0 | 0 | 17 | 2012 | 2023 |
| Thurston County | Anatoxin-a | 5 | 0 | 0 | 1 | 2016 | 2023 |
| Thurston County | Cylindrospermopsin | 4 | 0 | 0 | 1 | 2016 | 2023 |
| Thurston County | Microcystin | 5 | 0 | 0 | 1 | 2016 | 2023 |
| Thurston County | Saxitoxin | 3 | 0 | 0 | 1 | 2016 | 2021 |
| Walla Walla | Anatoxin-a | 49 | 3 | 1 | 6 | 2015 | 2023 |
| Walla Walla | Cylindrospermopsin | 10 | 0 | 0 | 5 | 2019 | 2022 |
| Walla Walla | Microcystin | 51 | 15 | 2 | 7 | 2008 | 2023 |
| Walla Walla | Saxitoxin | 11 | 0 | 0 | 5 | 2019 | 2022 |
| Whatcom | Anatoxin-a | 100 | 6 | 1 | 15 | 2010 | 2023 |
| Whatcom | Cylindrospermopsin | 17 | 0 | 0 | 10 | 2018 | 2023 |
| Whatcom | Microcystin | 106 | 29 | 4 | 15 | 2010 | 2023 |
| Whatcom | Saxitoxin | 18 | 0 | 0 | 9 | 2010 | 2023 |
| Whitman | Anatoxin-a | 29 | 1 | 1 | 4 | 2014 | 2023 |
| Whitman | Cylindrospermopsin | 9 | 0 | 0 | 4 | 2014 | 2023 |
| Whitman | Microcystin | 29 | 15 | 2 | 4 | 2014 | 2023 |
| Whitman | Saxitoxin | 9 | 0 | 0 | 4 | 2014 | 2023 |
| Yakima | Anatoxin-a | 4 | 1 | 1 | 2 | 2014 | 2023 |
| Yakima | Cylindrospermopsin | 1 | 0 | 0 | 1 | 2023 | 2023 |
| Yakima | Microcystin | 2 | 0 | 0 | 2 | 2014 | 2023 |
| Yakima | Saxitoxin | 1 | 0 | 0 | 1 | 2023 | 2023 |