Is Fort Peck Lake safe for dogs?
Model predicts elevated bloom & toxin risk
This lake's watershed profile predicts a higher chance of toxic blooms during warm months. Treat visibly green or scummy water as dangerous to dogs, and test on-site before letting pets swim or drink.
Predicted risk isn’t the same as today’s water. Blooms come and go — always look for green scums before letting your dog near the water, and check your state’s current advisories in season.
- Location
- Fort Peck Lake, MT (47.75, -106.75)
- Predicted toxin risk
- 54% chance of detectable toxin (predicted)
- Predicted cyanobacteria
- 110,000 cells/mL (predicted)
- Data source
- EPA cyanobacteria & microcystin lake model (2025)
What blue-green algae means for your dog
Blue-green algae (cyanobacteria) can produce toxins that are rapidly fatal to dogs, who are exposed by swimming in or drinking affected water and by licking it off their fur. Dogs are affected more often than other pets because they wade, swim, and drink from lakes and ponds.
A “lower risk” prediction lowers the odds but does not rule out toxins or a localized scum in the cove where your dog actually swims. Predictions describe a lake’s tendency, not today’s water. Treat this page as a first check, not the final word.