Green Valley Lake: toxic algae advisories
Green Valley Lake, San Bernardino County. See all San Bernardino County waters.
What the state's records say
Caution advisory, last posted Jul 28, 2023. 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 Green Valley Lake
The state has an advisory on file for Green Valley Lake (Caution advisory), last posted Jul 28, 2023, 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 |
|---|---|
| In Between Big Bear And Lake Arrowhead | Caution advisory, last posted Jul 28, 2023. No all-clear recorded. |
| Spot not described | Caution advisory, last posted Aug 31, 2020. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Green Valley 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 |
|---|---|---|---|
| Jul 28, 2023 | In Between Big Bear And Lake Arrowhead | Caution | Suspected bloom, investigation ongoing; Under investigation |
| Jul 28, 2023 | In Between Big Bear And Lake Arrowhead | Caution | Suspected bloom, investigation ongoing; Under investigation |
| Aug 31, 2020 | Spot not described | Caution | 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.