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Ecology and salmon related articles

Whitman County Public Health Reports
Harmful Algal Bloom Found in Snake River

by Vinny Saglimbeni
KREM, August 16, 2024

Whitman County Public Health said a water sample near Granite Point
tested positive for a liver toxin called microcystins.

Blue-green algae seen behind Lower Granite dam on the Snake River in 2023. (Credit: Courtney Flatt / NWPB) WHITMAN COUNTY, Wash. -- Whitman County Public Health (WCPH) has confirmed that a harmful algal bloom was found in the Snake River.

WCPH said a water sample near Granite Point on Friday tested positive for a liver toxin called microcystins.

WCPH also said the harmful algal bloom is located in the stretch of the Snake River intermittently between Nisqually John Landing and Little Goose Dam.

WCPH is asking people to avoid areas of water with "visible green scum on the surface of the water that appears like spilled paint."

Signage is posted at the Lower Granite Lock and Dam, at the Dunes, the Nisqually John Landing, Blyton Landing, Wawawai Landing, Granite Point and Wawawai County Park telling people to stay out of the water that is showing a visible bloom.

WCPH also suggests you do the following:

WCPH said there will be additional testing in the coming weeks to look at the full scope of the harmful algal bloom.

To find updating sampling results, go to this link on the Whitman County Public Health website.

Related Pages:
Toxic Algal Bloom Found on the Snake River for Second Year in a Row by Courtney Flatt, NW Public Broadcasting, 8/17/24
Algae Bloom in Lower Snake River by Bert Bowler, Spokesman-Review, 11/14/23
Large Snake River Toxic Algal Bloom Hasn't Happened Before by Courtney Flatt, NW News Network, 10/10/23
Toxic Algae Warning Issued for Little Goose Dam by Staff, Tri-City Herald, 10/3/12


Vinny Saglimbeni
Whitman County Public Health Reports Harmful Algal Bloom Found in Snake River
KREM, August 16, 2024

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