Prosser Creek: toxic algae advisories
Prosser Creek, Nevada County. See all Nevada County waters.
What the state's records say
Caution advisory, last posted Oct 14, 2021. 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 Prosser Creek
The state has an advisory on file for Prosser Creek (Caution advisory), last posted Oct 14, 2021, 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 |
|---|---|
| SF ~0.4mi above Crabtree Cyn. Cr. (635PS0242) | The state's latest record, from Sep 8, 2023, recommends no advisory. |
| Prosser Cr, below confluence | The state's latest record, from Sep 30, 2022, recommends no advisory. |
| below confluence | Caution advisory, last posted Oct 14, 2021. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Prosser Creek, 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 |
|---|---|---|---|
| Sep 8, 2023 | SF ~0.4mi above Crabtree Cyn. Cr. (635PS0242) | None | |
| Sep 30, 2022 | Prosser Cr, below confluence | None | End date recorded: Dec 27, 2022. Updates from routine monitoring program-organization |
| Sep 30, 2022 | Prosser Cr, below confluence | Algal mat alert sign | Updates from routine monitoring program-organization |
| Sep 13, 2022 | Prosser Cr, below confluence | Algal mat alert sign | Updates from routine monitoring program-organization |
| Oct 14, 2021 | below confluence | Caution | 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.