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Updates:
October 31, 2023: Harmful algal bloom (HAB) monitoring update
Recreational monitoring has ended for the season. Monitoring will resume in summer 2024. A harmful algal bloom may still be present at this waterbody. Know what to look for and check before recreating.
October 3, 2023: 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.
TriCounty Health Department has issued a WARNING ADVISORY.
If you visit the reservoir:
- Do not swim or water ski
- Avoid areas of algae when boating
- Clean fish well and discard guts
- Keep animals away
- Don’t drink the water
- Know how to recognize a harmful algal bloom
July 21, 2023: 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.
TriCounty Health Department has issued a WARNING ADVISORY.
If you visit the reservoir:
- Do not swim or water ski
- Avoid areas of algae when boating
- Clean fish well and discard guts
- Keep animals away
- Don’t drink the water
- Know how to recognize a harmful algal bloom
July 20, 2023: 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:
- 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
- Know how to recognize a harmful algal bloom