Pleasant Valley Reservoir: toxic algae advisories
Pleasant Valley Reservoir, Inyo County. See all Inyo County waters.
What the state's records say
Danger advisory, last posted Aug 21, 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: 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 Pleasant Valley Reservoir
The state has an advisory on file for Pleasant Valley Reservoir (Danger advisory), last posted Aug 21, 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 |
|---|---|
| Pleasant Valley Dam | Caution advisory, last posted Aug 21, 2026. No all-clear recorded. |
| Boat Ramp | Danger advisory, last posted Sep 2, 2022. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Pleasant Valley Reservoir, 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 |
|---|---|---|---|
| Aug 21, 2026 | Pleasant Valley Dam | Caution | Visual monitoring only-present bloom |
| Jul 8, 2026 | Pleasant Valley Dam | Caution | Visual monitoring only-present bloom |
| Jul 8, 2026 | Pleasant Valley Dam | Caution | Visual monitoring only-present bloom |
| Jun 29, 2026 | Pleasant Valley Dam | Visual observation | Visual monitoring only-present bloom |
| Aug 27, 2025 | Pleasant Valley Dam | None | Testing results below posting triggers |
| Jun 26, 2025 | Pleasant Valley Dam | None | Testing results below posting triggers |
| Jun 26, 2025 | Pleasant Valley Dam | None | Testing results below posting triggers |
| May 27, 2025 | Pleasant Valley Dam | None | Testing results below posting triggers |
| Aug 28, 2024 | Pleasant Valley Dam | Caution | visual monitoring based advisory |
| Jun 26, 2024 | Pleasant Valley Dam | None | visual monitoring based advisory |
| Nov 3, 2023 | Pleasant Valley Dam | None | visual monitoring based advisory |
| Oct 6, 2023 | Pleasant Valley Dam | Visual observation | visual monitoring based advisory |
| Sep 11, 2023 | Pleasant Valley Dam | Caution | visual monitoring based advisory |
| Aug 30, 2023 | Pleasant Valley Dam | Caution | visual monitoring based advisory |
| Aug 30, 2023 | Pleasant Valley Dam | Caution | visual monitoring based advisory |
| Sep 2, 2022 | Boat Ramp | Danger | Advisory based on visual and toxins; Updates from routine monitoring program-organization |
| Aug 11, 2022 | Boat Ramp | Caution | Updates from routine monitoring program-organization |
| Jul 6, 2022 | Pleasant Valley Dam | None | Testing results below posting triggers |
| Jun 28, 2022 | Pleasant Valley Dam | Caution | visual monitoring based advisory |
| Jun 21, 2022 | Pleasant Valley Dam | Caution | 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.