
08/15/2025
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Updated Algae Bloom advisory: OHA expanded a recreational use health advisory for the Willamette River to include Ross Island Bridge downriver to Wapato Bridge and Kelley Point Park.
The major risk of exposure is from ingesting water. Avoid activities that generate a lot of spray, such as water skiing or power boating.
Children and pets are at increased risk for cyanobacteria exposure and poisoning because of their size and level of activity.
Remember, “When in doubt, stay out!”
For more information, visit OHA’s Cyanobacteria (Harmful Algae) Blooms website: healthoregon.org/hab