Marin Civic Center Lagoon: toxic algae advisories
Marin Civic Center Lagoon, Marin County. See all Marin County waters.
What the state's records say
Visual observation, last posted Jun 5, 2025. 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: The state recorded an advisory of a type outside the Caution, Warning and Danger levels. Read the sign posted at the water.
Before you go, check the state's official algae page and any signs posted at the water.
Dogs at Marin Civic Center Lagoon
The state has an advisory on file for Marin Civic Center Lagoon (Visual observation), last posted Jun 5, 2025, 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 |
|---|---|
| marin County Civic Center | Visual observation, last posted Jun 5, 2025. No all-clear recorded. |
| Marin Civic Center Lagoon | Reports on file, with no advisory level the state has classified. |
Advisory history
Every advisory record the state has published for Marin Civic Center Lagoon, 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 |
|---|---|---|---|
| Jun 5, 2025 | marin County Civic Center | Visual observation | Visual monitoring only-present bloom |
| Jul 22, 2021 | Marin Civic Center Lagoon | NA - refer to Report Details | Suspected bloom, investigation ongoing |
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.