Apollo Park Lake: toxic algae advisories
Apollo Park Lake, Los Angeles County. See all Los Angeles County waters.
What the state's records say
Caution advisory, last posted Oct 15, 2026. 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 Apollo Park Lake
The state has an advisory on file for Apollo Park Lake (Caution advisory), last posted Oct 15, 2026, 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 |
|---|---|
| Lake Collins | Caution advisory, last posted Oct 15, 2026. No all-clear recorded. |
| Lake Aldrin Pier | Visual observation, last posted May 8, 2026. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Apollo Park 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 |
|---|---|---|---|
| Oct 15, 2026 | Lake Collins | Caution | Updates from routine monitoring program-organization |
| Sep 2, 2026 | Lake Collins | Caution | Updates from routine monitoring program-organization |
| Sep 2, 2026 | Lake Collins | Caution | Updates from routine monitoring program-organization |
| Jun 26, 2026 | Lake Collins | None | Testing results below posting triggers |
| May 14, 2026 | Lake Collins | Visual observation | Rec general awareness |
| May 8, 2026 | Lake Aldrin Pier | Visual observation | Suspected bloom, investigation ongoing |
| Aug 22, 2025 | Lake Aldrin Pier | Caution | Advisory based on visual and toxins |
| Jun 24, 2025 | Lake Aldrin Pier | None | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Jun 24, 2025 | Lake Aldrin Pier | None | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| May 15, 2025 | Lake Collins | Caution | Advisory based on visual and toxins |
| Sep 26, 2024 | Lake Collins | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Sep 26, 2024 | Lake Aldrin Pier | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Sep 26, 2024 | Lake Collins | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Aug 21, 2024 | Lake Collins | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Aug 21, 2024 | Lake Aldrin Pier | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Jun 14, 2024 | Lake Aldrin Pier | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| Jun 14, 2024 | Lake Collins | Caution | Advisory based on visual and toxins; Lake-wide advisory; Updates from routine monitoring program-organization |
| May 21, 2024 | Lake Collins | Visual observation | visual monitoring based advisory |
| May 21, 2024 | Lake Aldrin Pier | None | Updates from routine monitoring program-organization |
| May 21, 2024 | Lake Collins | Visual observation | visual monitoring based advisory |
| May 14, 2024 | Lake Collins | Visual observation | visual monitoring based 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.