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Warning Advisory
Harmful Algae Present
- 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
October 2, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at Deer Creek Reservoir. Algae in the water may be producing dangerous toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit Deer Park 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
Charleston Day-Use Area:
Danger Advisory
September 12, 2024: Harmful algal bloom (HAB) monitoring update
KEEP OUT: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water is producing high levels of dangerous toxins. Accidentally drinking this water may hurt or kill humans and animals. Any exposure to this water may cause illness.
Wasatch County Health Department has issued a DANGER ADVISORY.
If you visit the the Charleston Day-Use Area:
- Do not swim or water ski
- Use caution if boating in this area and avoid areas of algae
- Use caution if fishing in this area
- Keep animals away
- Don’t drink the water
- Know how to recognize a harmful algal bloom
Wallsburg Area:
Warning Advisory
September 12, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Wallsburg Area. Harmful algae mats are also present. Algae may be producing toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Wallsburg Area:
- 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
Other areas of Deer Creek Reservoir:
Health Watch
September 12, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Visible signs of harmful algae are present in other areas around the lake. Algae in the water and along the shore may be producing toxins that can be dangerous for humans and animals.
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
Charleston Day-Use Area:
Danger Advisory
September 3, 2024: Harmful algal bloom (HAB) monitoring update
KEEP OUT: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water is producing high levels of dangerous toxins. Accidentally drinking this water may hurt or kill humans and animals. Any exposure to this water may cause illness.
Wasatch County Health Department has issued a DANGER ADVISORY.
If you visit the the Charleston Day-Use Area:
- Do not swim or water ski
- Use caution if boating in this area and avoid areas of algae
- Use caution if fishing in this area
- Keep animals away
- Don’t drink the water
- Know how to recognize a harmful algal bloom
Wallsburg Area:
Warning Advisory
September 3, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Wallsburg Area. Harmful algae mats are also present. Algae may be producing toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Wallsburg Area:
- 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
Other areas of Deer Creek Reservoir:
Health Watch
September 3, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Visible signs of harmful algae are present in other areas around the lake. Algae in the water and along the shore may be producing toxins that can be dangerous for humans and animals.
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
Charleston Day-Use Area:
Danger Advisory
August 30, 2024: Harmful algal bloom (HAB) monitoring update
KEEP OUT: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water is producing high levels of dangerous toxins. Accidentally drinking this water may hurt or kill humans and animals. Any exposure to this water may cause illness.
Wasatch County Health Department has issued a DANGER ADVISORY.
If you visit the the Charleston Day-Use Area:
- Do not swim or water ski
- Use caution if boating in this area and avoid areas of algae
- Use caution if fishing in this area
- Keep animals away
- Don’t drink the water
- Know how to recognize a harmful algal bloom
Wallsburg Area:
Warning Advisory
August 30, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Wallsburg Area. Harmful algae mats are also present. Algae may be producing toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Wallsburg Area:
- 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
Other areas of Deer Creek Reservoir:
Health Watch
August 26, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Visible signs of harmful algae are present in other areas around the lake. Harmful algae mats are also present in the Wallsburg Area. Algae in the water and along the shore may be producing toxins that can be dangerous for humans and animals.
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
Charleston Day-Use Area:
Warning Advisory
August 22, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water may be producing toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Charleston Day-Use Area:
- 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
Other areas of Deer Creek Reservoir:
Health Watch
August 22, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Visible signs of harmful algae are present in other areas around the lake. Harmful algae mats are also present in the Wallsburg Area. Algae in the water and along the shore may be producing toxins that can be dangerous for humans and animals.
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
Charleston Day-Use Area:
Warning Advisory
August 19, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water may be producing toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Charleston Day-Use Area:
- 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
Other areas of Deer Creek Reservoir:
Health Watch
August 19, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Visible signs of harmful algae are present in other areas around the lake. Harmful algae mats are also present in the Wallsburg Area. Algae in the water and along the shore may be producing toxins that can be dangerous for humans and animals.
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
Charleston Day-Use Area:
Health Watch
August 9, 2024: Harmful algal bloom (HAB) monitoring update
OKAY, BUT BE CAREFUL: Two weeks of sampling indicate that a harmful algal bloom is no longer present in this area. Conditions may change quickly, so know how to recognize a harmful algal bloom and avoid areas of visible algae when recreating.
Other areas of Deer Creek Reservoir:
Looks good
August 5, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom at other sites around Deer Creek Reservoir. Conditions can change quickly, so know how to recognize a harmful algal bloom and avoid areas of visible algae.
Site visited: Island Park Marina, Rainbow Bay
Charleston Day-Use Area:
Warning Advisory
August 5, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Harmful algae is present at the Charleston Day-Use Area. Algae in the water may be producing dangerous toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Charleston Day-Use Area:
- 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
Other areas of Deer Creek Reservoir:
Looks good
August 5, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom at other sites around Deer Creek Reservoir. Conditions can change quickly, so know how to recognize a harmful algal bloom and avoid areas of visible algae.
Site visited: Island Park Marina, Rainbow Bay
Charleston Day-Use Area:
Warning Advisory
July 29, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water may be producing dangerous toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Charleston Day-Use Area:
- 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
Other areas of Deer Creek Reservoir:
Looks good
July 29, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom at other sites around Deer Creek Reservoir. Conditions can change quickly, so know how to recognize a harmful algal bloom and avoid areas of visible algae.
Site visited: Island Park Marina, Rainbow Bay, near Sailboat Beach.
Charleston Day-Use Area:
Warning Advisory
July 22, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: A harmful algal bloom is present at the Charleston Day-Use Area. Algae in the water may be producing dangerous toxins that can make humans and animals sick.
Wasatch County Health Department has issued a WARNING ADVISORY.
If you visit the Charleston Day-Use Area:
- 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
Other areas of Deer Creek Reservoir:
Looks good
July 22, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom at other sites around Deer Creek Reservoir. Conditions can change quickly so know how to recognize a harmful algal bloom and avoid areas of visible algae.
Sites Sampled: Island Park Marina, Rainbow Bay, near Sailboat Beach
Charleston Day-Use Area:
Health Watch
July 22, 2024: Harmful algal bloom (HAB) monitoring update
BE CAREFUL: Our monitoring team saw visible signs of a harmful algal bloom at the Charleston Day-Use Area. 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
July 18, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Charleston day use area, Rainbow Bay, Island Park Marina, State Park shore
July 2, 2024: Harmful algal bloom (HAB) monitoring update
OKAY, BUT BE CAREFUL: Low levels of harmful algae were present in areas around Deer Creek. Know how to recognize a harmful algal bloom and avoid areas of visible algae when recreating.
Site visited: Shore at State Park, Rainbow Bay, Island Park Marina, Charleston day use area
June 26, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Island Park Marina, Rainbow Bay
June 26, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Charleston day use area, Rainbow Bay, Island Park Marina, State Park shore
June 26, 2024: Harmful algal bloom (HAB) monitoring update
GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom. Learn more about harmful algal blooms.
Site visited: Charleston day use area, Rainbow Bay, Island Park Marina, State Park shore
May 22, 2024: Waterborne pathogen (E. coli) monitoring update
GOOD NEWS: E. coli counts were measured below Utah Department of Health recreational thresholds. Sampling suggests that the water is safe from harmful bacteria and viruses.
Site sampled: Island Park Marina, Rainbow Bay, shore at State Park