Wiest Lake: toxic algae advisories
Wiest Lake, Imperial County. See all Imperial County waters.
What the state's records say
Caution advisory, last posted Nov 18, 2025. No all-clear recorded.
2 reported spots here have an advisory with no all-clear recorded.
Reporting is voluntary, so the state may not have recorded an end even if conditions changed. Check posted signs and the official map.
What this level asks: Algae that can make toxins may be present. Keep people, children and pets away from algae and scum, and do not let pets drink the water.
Before you go, check the state's official algae page and any signs posted at the water.
Dogs at Wiest Lake
The state has an advisory on file for Wiest Lake (Caution advisory), last posted Nov 18, 2025, and no all-clear recorded. Keep your dog out of the water and away from scum on the shore until the state records an end.
Reported spots
The state records each report at a spot, such as a beach or a boat ramp. Each spot's latest deciding record:
| Spot | Status |
|---|---|
| Alamo River | Caution advisory, last posted Nov 18, 2025. No all-clear recorded. |
| Rutherford Rd | Caution advisory, last posted Dec 17, 2024. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Wiest Lake, newest first. "None" is the state's record that no advisory was recommended on that date. "NA" records do not change a status.
| Date | Spot | State's level | Notes |
|---|---|---|---|
| Nov 18, 2025 | Alamo River | Caution | Suspected illness reported; Under investigation; Visual monitoring only-present bloom |
| Nov 18, 2025 | Alamo River | Caution | Suspected illness reported; Under investigation; Visual monitoring only-present bloom |
| Dec 17, 2024 | Rutherford Rd | Caution | Advisory based on visual and toxins; Lake-wide advisory |
| Feb 29, 2024 | Rutherford Rd | Caution | Advisory based on visual and toxins; Lake-wide advisory |
| Feb 21, 2024 | Rutherford Rd | Caution | Lake-wide advisory |
Source
Advisory data: California State Water Resources Control Board, Freshwater Harmful Algal Bloom Program, via data.ca.gov (public domain). Advisories are recommendations; reporting is voluntary and incomplete. The state's data. An advisory ends only when the state records a later "None" (no advisory recommended) at the same spot, or an end date. A blank end date is unknown.