Lake Havasu: toxic algae advisories
Lake Havasu, Riverside County. See all Riverside County waters.
What the state's records say
The state's latest record, from Dec 12, 2022, recommends no advisory.
Last advisory on file: Nov 22, 2022.
That reflects what the state knew on that date. It is not a finding that the water is safe now: blooms can return within days, and many are never reported.
Before you go, check the state's official algae page and any signs posted at the water.
Dogs at Lake Havasu
The state's latest record, from Dec 12, 2022, recommends no advisory. For Lake Havasu, that is not the same as an all-clear for today. Look at the water before your dog goes in: keep it out of green, blue-green or scummy water and away from mats on the shore.
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 |
|---|---|
| Windsor Beach | The state's latest record, from Dec 12, 2022, recommends no advisory. |
| parker dam boat launch | Reports on file, with no advisory level the state has classified. |
| Casa Ventana at launch ramp | Reports on file, with no advisory level the state has classified. |
| Palo Verde dive water RV park | Reports on file, with no advisory level the state has classified. |
| 200m south of PWC launch ramp | The state's latest record, from May 26, 2022, recommends no advisory. |
Advisory history
Every advisory record the state has published for Lake Havasu, 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 |
|---|---|---|---|
| Dec 12, 2022 | Windsor Beach | None | Testing results below posting triggers |
| Nov 22, 2022 | Windsor Beach | Danger | Alert-high concentration toxins |
| Oct 7, 2022 | parker dam boat launch | NA - refer to Report Details | No cyano, other algae present. |
| Oct 7, 2022 | Casa Ventana at launch ramp | NA - refer to Report Details | No cyano, other algae present. |
| Oct 7, 2022 | Palo Verde dive water RV park | NA - refer to Report Details | No cyano, other algae present. |
| May 26, 2022 | 200m south of PWC launch ramp | None | Updates from routine monitoring program-organization |
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.