San Joaquin River: toxic algae advisories
San Joaquin River, Sacramento County. See all Sacramento County waters.
What the state's records say
Danger advisory, last posted Aug 5, 2022. No all-clear recorded.
5 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 San Joaquin River
The state has an advisory on file for San Joaquin River (Danger advisory), last posted Aug 5, 2022, 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 |
|---|---|
| Prisoner's Point | Caution advisory, last posted Aug 5, 2022. No all-clear recorded. |
| Eddos harbor & RV Park | Caution advisory, last posted Aug 5, 2022. No all-clear recorded. |
| Delta Bay Marina Isleton | Caution advisory, last posted Aug 30, 2021. No all-clear recorded. |
| on Sherman Island East Levee Rd, Eddo harbor | Caution advisory, last posted Jul 21, 2021. No all-clear recorded. |
| San Joaquin River, Delta Bay Marina | Danger advisory, last posted Sep 4, 2020. No all-clear recorded. |
Advisory history
Every advisory record the state has published for San Joaquin River, 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 5, 2022 | Prisoner's Point | Caution | visual monitoring based advisory |
| Aug 5, 2022 | Eddos harbor & RV Park | Caution | visual monitoring based advisory |
| Aug 30, 2021 | Delta Bay Marina Isleton | Caution | visual monitoring based advisory |
| Jul 21, 2021 | on Sherman Island East Levee Rd, Eddo harbor | Caution | visual monitoring based advisory |
| Sep 4, 2020 | San Joaquin River, Delta Bay Marina | 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.