Mystic Lake: toxic algae advisories
Mystic Lake, Riverside County. See all Riverside County waters.
What the state's records say
Danger advisory, last posted Sep 9, 2024. 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: Toxins may be at levels that can seriously harm people and animals. Stay out of the water and keep children and pets away from the water and the shore.
Before you go, check the state's official algae page and any signs posted at the water.
Dogs at Mystic Lake
The state has an advisory on file for Mystic Lake (Danger advisory), last posted Sep 9, 2024, 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 |
|---|---|
| northern end of lake | Caution advisory, last posted Sep 9, 2024. No all-clear recorded. |
| near wildlife area | Reports on file, with no advisory level the state has classified. |
| Mystic Lake-East Shore | Danger advisory, last posted Oct 29, 2020. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Mystic 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 |
|---|---|---|---|
| Sep 9, 2024 | northern end of lake | Caution | Advisory based on visual and toxins; Lake-wide advisory |
| Aug 29, 2024 | northern end of lake | Visual observation | Suspected bloom, investigation ongoing |
| Jan 19, 2024 | northern end of lake | Caution | Lake-wide advisory |
| Jan 3, 2024 | northern end of lake | Caution | Lake-wide advisory |
| Jan 3, 2024 | northern end of lake | Blank in the state's file | Suspected bloom, investigation ongoing |
| Sep 15, 2023 | near wildlife area | NA - refer to Report Details | Under investigation |
| Sep 15, 2023 | near wildlife area | NA - refer to Report Details | Under investigation |
| Oct 29, 2020 | Mystic Lake-East Shore | Danger | Advisory based on visual and toxins |
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.