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Deer Creek Reservoir Recreational Monitoring

Updates:

November 17, 2023: Harmful algal bloom (HAB) monitoring update

Recreational monitoring has ended for the season. Monitoring will resume in summer 2024. Waterborne pathogen or harmful algal bloom concerns may still arise at this waterbody. Know what to look for and check before recreating.

Charleston Day Use Area:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 24, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Rainbow Bay:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 24, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Rainbow Bay. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Rainbow Bay area:

Island Park:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 24, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Island Park. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Island Park area:

Charleston Day Use Area:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Rainbow Bay:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Rainbow Bay. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Rainbow Bay area:

Island Park:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Island Park. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Island Park area:

Charleston Day Use Area:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 10, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Rainbow Bay:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 10, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Rainbow Bay. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Rainbow Bay area:

Island Park:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

October 10, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Island Park. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Island Park area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

October 10, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

September 28, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Rainbow Bay:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

September 28, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Rainbow Bay. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Rainbow Bay area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

September 28, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

September 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Rainbow Bay:
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

September 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Rainbow Bay. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Rainbow Bay area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

September 18, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

September 12, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at the Charleston Day Use Area. Algae in the water is producing dangerous toxins that can make humans and animals sick. 

Wasatch Health Department has issued a WARNING ADVISORY. 

If you visit the Charleston Day Use area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

September 6, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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

DANGER: Swimming not safe, boating not safe, and be cautious eating fish.

September 6, 2023: 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 Charleston Day Use Area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

September 6, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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

DANGER: Swimming not safe, boating not safe, and be cautious eating fish.

September 1, 2023: 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 Charleston Day Use Area:

Other areas of Deer Creek:
Health Watch

Do not swim, be cautious boating, do not eat fish.

September 1, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. 

If you visit Deer Creek:

  • 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:
Health Watch

Do not swim, be cautious boating, do not eat fish.

August 25, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae has been observed at locations across Deer Creek Reservoir. Know how to recognize a harmful algal bloom and check before recreating.

Wasatch County Health Department has posted a HEALTH WATCH. If you visit Deer Creek:

Charleston Day Use Area :
Danger Advisory

DANGER: Swimming not safe, boating not safe, and be cautious eating fish.

August 22, 2023: 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 Charleston Day Use Area:

Other areas of Deer Creek:
Looks Good

ICONS: No advisories have been issued. Swimming, boating, and eating fish is OK.

August 16, 2023: Harmful algal bloom (HAB) monitoring update

OK, but be careful: Low levels of harmful algae were observed at other locations around Deer Creek. Know how to recognize a harmful algal bloom and check before you recreate in these areas.

Charleston Day Use Area :
Warning Advisory

WARNING: Do not swim, be cautious when boating, and eating fish is OK.

August 11, 2023: 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. 

If you visit the Charleston Day Use Area we recommend:

Other areas of Deer Creek:
Looks Good

ICONS: No advisories have been issued. Swimming, boating, and eating fish is OK.

August 11, 2023: Harmful algal bloom (HAB)  monitoring update

OK, but be careful: Low levels of harmful algae were observed at Deer Creek State Park and Island Park Marina. Know how to recognize a harmful algal bloom and check before you recreate in these areas.

Charleston Day Use Area :
Health Watch

Do not swim, be cautious boating, do not eat fish.

July 27, 2023: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Wasatch County Health Department observed visible signs of a harmful algal bloom at the Charleston Day Use Area. There could be algae in the water producing dangerous toxins.

If you visit this area we recommend:

Other areas of Deer Creek:
Looks Good

ICONS: No advisories have been issued. Swimming, boating, and eating fish is OK.

July 25, 2023: 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.

Sites visited: Deer Creek State Park, Island Park Marina, Rainbow Bay

July 11, 2023: Harmful algal bloom (HAB)  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: Charleston Day Use Area, Island Park Marina, Rainbow Bay, Deer Creek Cove Marina

June 21, 2023: 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, Deer Creek Reservoir High Water Line, Island Park Marina, Rainbow Bay, Sailboat Beach

Last Updated:

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