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OHA lifts algae bloom advisory on Ross Island Lagoon, Willamette River
News Release from Oregon Health Authority Posted on FlashAlert: August 19th, 2025 1:17 PM Oregon Health Authority (OHA) has lifted the recreational use health advisory issued for Ross Island Lagoon and for the Willamette River south of the lagoon downriver to Wapato Bridge and Kelley Point Park. OHA issued the advisory August 12. Water monitoring has confirmed…

