Lake Tapps News

Cascade Announces 2026 Lake Tapps Milfoil Treatment Plan

Cascade Water Alliance owns and operates the Lake Tapps Reservoir and is announcing its planned milfoil treatment for 2026. Milfoil is found in most Northwest lakes and has been in  >>

Lake Tapps Reservoir to Rise to 543 Feet – April 27, 2026

Lake Tapps WA – This week, the Cascade Water Alliance will raise the Lake Tapps Reservoir to approximately elevation 543 feet, the maximum allowable level at which Cascade can operate.  >>

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Cascade Announces Spring Refill for Lake Tapps Reservoir – Feb. 3, 2026

Lake Tapps, WA – Cascade Water Alliance today announced it will begin the spring refill of the Lake Tapps Reservoir on Sunday, February 15. Cascade Water Alliance draws the reservoir  >>

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Update from Cascade Water Alliance on Flooding and Lake Tapps Reservoir Levels – Dec. 16, 2025

Cascade has been watching the flooding issues very closely, and we are very concerned about what is happening to our neighbors in Pacific. Cascade’s headworks, where water is diverted from  >>

Update from Cascade Water Alliance on Emergency Weather Event and Lake Tapps Reservoir Levels – Dec. 11, 2025 at 9:30 AM

Cascade is actively monitoring and managing Lake Tapps Reservoir water levels during the state-declared emergency atmospheric river weather event. Due to an ongoing construction project at Cascade’s headworks, no water  >>