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Payson Lakes Recreational Monitoring

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Updates

November 8, 2024: Harmful algal bloom (HAB) monitoring update

Recreational water quality monitoring has ended for the season. Monitoring will resume in summer 2025. A harmful algal bloom may still be present at these waterbodies. Know what to look for and check before recreating.

Big East Lake
Warning Advisory

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

October 7, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY. 

If you visit Big East Lake:

McClellan Lake:
Looks Good

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

October 7, 2024: Harmful algal bloom (HAB) monitoring update

GOOD NEWS: Harmful algae mats were not observed at McClellan Lake. Conditions can change quickly, so know how to recognize a harmful algal bloom and always check before recreating.

Big East Lake
Warning Advisory

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

September 13, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY. 

If you visit Big East Lake:

Big East Lake
Health Watch

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

September 9, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: A harmful algal bloom is present at Big East Lake. Algae in the water is producing high levels of dangerous toxins.

If you visit Big East Lake we recommend:

McClellan Lake:
Health Watch

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

September 9, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae mats are still present in some areas of McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

  • Do not swim or play in areas with floating algae mats
  • Keep animals away
  • Clean fish well and discard guts
  • Don’t drink the water

Box Lake:
Looks Good

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

September 9, 2024: Harmful algal bloom (HAB) monitoring update

GOOD NEWS: A harmful algal bloom was not observed at Box Lake. Conditions can change quickly, so know how to recognize a harmful algal bloom and always check before recreating.

Big East Lake
Health Watch

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

September 4, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Visible signs of a harmful algal bloom are present at Big East Lake. Algae in the water may be producing dangerous toxins.

If you visit Big East Lake we recommend:

McClellan Lake:
Health Watch

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

August 9, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Harmful algae mats are still present in some areas of McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

  • Do not swim or play in areas with floating algae mats
  • Keep animals away
  • Clean fish well and discard guts
  • Don’t drink the water

Box Lake:
Looks Good

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

August 9, 2024: Harmful algal bloom (HAB) monitoring update

GOOD NEWS: Two weeks of sampling indicate that a harmful algal bloom is no longer present at Box Lake or Big East Lake. Conditions can change quickly, so know how to recognize a harmful algal bloom and always check before recreating.

Box Lake:
Warning Advisory

Swimming is not OK, boating is OK, eating fish is OK.

July 29, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY for Box Lake. 

If you visit Box Lake:

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 29, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

  • Do not swim or play in areas with floating algae mats
  • Keep animals away
  • Clean fish well and discard guts
  • Don’t drink the water

Big East Lake:
Warning Advisory

Swimming is not OK, boating is OK, eating fish is OK.

July 29, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY for Big East Lake. 

If you visit Big East Lake:

Box Lake:
Warning Advisory

Swimming is not OK, boating is OK, eating fish is OK.

July 15, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY for Box Lake. 

If you visit Box Lake:

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 12, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

  • Do not swim or play in areas with floating algae mats
  • Keep animals away
  • Clean fish well and discard guts
  • Don’t drink the water

Big East Lake:
Warning Advisory

Swimming is not OK, boating is OK, eating fish is OK.

July 15, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY for Big East Lake. 

If you visit Big East Lake:

Box Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 12, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Visible signs of a harmful algal bloom are present at Box Lake. Algae in the water may be producing dangerous toxins.

If you visit Box Lake we recommend:

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 12, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

  • Do not swim or play in areas with floating algae mats
  • Keep animals away
  • Clean fish well and discard guts
  • Don’t drink the water

Big East Lake:
Warning Advisory

Swimming is not OK, boating is OK, eating fish is OK.

July 12, 2024: Harmful algal bloom (HAB) monitoring update

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

Utah County Health Department has issued a WARNING ADVISORY for Big East Lake. 

If you visit Big East Lake:

Box Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 10, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Visible signs of a harmful algal bloom are present at Box Lake. Algae in the water may be producing dangerous toxins.

If you visit Box Lake we recommend:

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 10, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

Big East Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

July 10, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Visible signs of a harmful algal bloom are present at Big East Lake. Algae in the water may be producing dangerous toxins.

If you visit Big East Lake we recommend:

Box Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

June 27, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Visible signs of a harmful algal bloom are present at Box Lake. Algae in the water may be producing dangerous toxins.

If you visit Box Lake we recommend:

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

June 19, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

Big East Lake:
Looks Good

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

June 19, 2024: Harmful algal bloom (HAB) monitoring update

GOOD NEWS: Our monitoring team did not see any visible signs of a harmful algal bloom at Big East Lake.

McClellan Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

June 19, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Sampling results confirmed the presence of harmful algae mats at McClellan Lake. Brown and green mats were observed accumulating along the shoreline. These mats may be producing toxins that can hurt humans and animals.

If you visit McClellan Lake, we recommend:

Box Lake & Big East Lake:
Looks Good

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

June 19, 2024: Harmful algal bloom (HAB) monitoring update

K, but be careful: Sampling results indicated low amounts of harmful algae were present in Box Lake. Know how to recognize a harmful algal bloom and avoid playing or swimming in areas of visible algae.

GOOD NEWS: No harmful algae was observed at Big East Lake.

Box Lake:
Health Watch

Be cautious when swimming, boating is OK, eating fish is OK.

June 17, 2024: Harmful algal bloom (HAB) monitoring update

BE CAREFUL: Our monitoring team saw visible signs of a harmful algal bloom at Box Lake. 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:

Big East Lake & McClellan Lake:
Looks Good

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

June 17, 2024: Harmful algal bloom (HAB) monitoring update

OK, but be careful: Our monitoring team did not see any visible signs of a harmful algal bloom. However, harmful algae mats may be present at McClellan Lake. Learn more about harmful algal blooms and know how to recognize harmful algae mats. Dogs and children should be kept away from algae mats!

Site visited: By East Lake at NW picnic area, Box Lake near center

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