Del Norte County: lake and river algae advisories
8 waters in Del Norte County appear in the state's harmful algal bloom records. Waters whose latest record is an advisory come first.
| Water | Latest record |
|---|---|
| Klamath River | Warning advisory, last posted Sep 18, 2026. No all-clear recorded. |
| Pacific Ocean | Caution advisory, last posted Mar 9, 2026. No all-clear recorded. |
| Pond #1 on Klamath River Overflow Channel | Caution advisory, last posted Oct 7, 2024. No all-clear recorded. |
| Elk Creek | The state's latest record, from Jul 30, 2026, recommends no advisory. |
| Illinois River | The state's latest record, from Jul 30, 2026, recommends no advisory. |
| Klamath River Estuary | The state's latest record, from Jul 20, 2021, recommends no advisory. |
| Pulikla Reservation | The state's latest record, from Sep 18, 2026, recommends no advisory. |
| Waukell Creek | The state's latest record, from Sep 18, 2026, recommends no advisory. |