San Antonio Lake: toxic algae advisories

San Antonio Lake, Monterey County. See all Monterey County waters.

What the state's records say

Caution advisory, last posted Aug 26, 2024. 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 San Antonio Lake

The state has an advisory on file for San Antonio Lake (Caution advisory), last posted Aug 26, 2024, 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.

More on dogs and toxic algae.

Reported spots

The state records each report at a spot, such as a beach or a boat ramp. Each spot's latest deciding record:

Each reported spot at San Antonio Lake and its latest status
SpotStatus
San Antonio Lake north and south shore recreational areas Caution advisory, last posted Aug 26, 2024. No all-clear recorded.

Advisory history

Every advisory record the state has published for San Antonio Lake, newest first. "None" is the state's record that no advisory was recommended on that date. "NA" records do not change a status.

Advisory records for San Antonio Lake, newest first
DateSpotState's levelNotes
Aug 26, 2024 San Antonio Lake north and south shore recreational areas Caution Lake-wide advisory
Jul 12, 2024 San Antonio Lake north and south shore recreational areas Danger Closure and fish kill
Jul 12, 2024 San Antonio Lake north and south shore recreational areas Danger Suspected illness reported

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.