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Matt Warner Reservoir Recreational Monitoring

Do not swim icon. Boating is safe icon. Caution when eating fish icon.

Warning Advisory

Harmful Algae Present

Do not swim icon. Boating is safe icon. Caution when eating fish icon.
  • Do not swim or water ski
  • Avoid areas of algae when boating
  • Keep animals away
  • Do not drink the water
  • Clean fish well and discard guts

Updates:

July 23, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Matt Warner Reservoir. Algae in the water may be producing dangerous toxins that can make humans and animals sick. 

The TriCounty Health Department has issued a WARNING ADVISORY. 

If you visit Matt Warner Reservoir:


July 22, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Our monitoring team saw visible signs of a harmful algal bloom at Matt Warner Reservoir. There could be algae in the water producing dangerous toxins. We collected samples and results are pending. Check back here for updates.

In the meantime we recommend:

Know how to recognize a harmful algal bloom

Do not swim or water ski in areas of algae

Avoid areas of algae when boating

Clean fish well and discard guts

Keep animals away

Don’t drink the water

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