Nevada County: lake and river algae advisories
20 waters in Nevada County appear in the state's harmful algal bloom records. Waters whose latest record is an advisory come first.
| Water | Latest record |
|---|---|
| Crabtree Creek | Algal mat alert sign, last posted Jun 4, 2026. No all-clear recorded. |
| Lake of the Pines | Caution advisory, last posted Sep 22, 2026. No all-clear recorded. |
| Lake Zyac | Caution advisory, last posted Sep 15, 2026. No all-clear recorded. |
| Little Truckee River | Caution advisory, last posted Sep 8, 2023. No all-clear recorded. |
| Middle Fork American River | Algal mat alert sign, last posted Sep 11, 2025. No all-clear recorded. |
| Prosser Creek | Caution advisory, last posted Oct 14, 2021. No all-clear recorded. |
| Sagehen Creek | Algal mat alert sign, last posted Aug 7, 2026. No all-clear recorded. |
| South Yuba River | Caution advisory, last posted Sep 9, 2026. No all-clear recorded. |
| Boca Reservoir | The state's latest record, from Oct 7, 2026, recommends no advisory. |
| Combie Lake | The state's latest record, from Mar 12, 2021, recommends no advisory. |
| Donner Lake | The state's latest record, from Sep 30, 2022, recommends no advisory. |
| Flora Lake | The state recorded an end date of Nov 10, 2022. |
| Lake Angela | The state recorded an end date of Nov 10, 2022. |
| Lake Wildwood | The state's latest record, from May 22, 2024, recommends no advisory. |
| Martis Creek Reservoir | The state's latest record, from Sep 25, 2026, recommends no advisory. |
| Prosser Creek Reservoir | The state's latest record, from Oct 7, 2026, recommends no advisory. |
| Scotts Flat Lake | The state recorded an end date of Oct 27, 2022. |
| South Fork Yuba River | The state's latest record, from Sep 25, 2023, recommends no advisory. |
| Summit Lake | The state's latest record, from Sep 30, 2022, recommends no advisory. |
| Trout Creek | The state's latest record, from Oct 14, 2022, recommends no advisory. |