White Slough: toxic algae advisories
White Slough, San Joaquin County. See all San Joaquin County waters.
What the state's records say
Caution advisory, last posted Jul 21, 2021. No all-clear recorded.
3 reported spots here have an advisory with 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 White Slough
The state has an advisory on file for White Slough (Caution advisory), last posted Jul 21, 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 |
|---|---|
| Disappointment Slough @ Bishop Cut | The state's latest record, from Sep 15, 2023, recommends no advisory. |
| King Island Marina Boat Launch | The state recorded an end date of Oct 2, 2022. |
| Village West Marina and Resort behind the marina in the slough and in front of the marina gas dock | The state recorded an end date of Oct 1, 2022. |
| King's Island Marina | Caution advisory, last posted Jul 21, 2021. No all-clear recorded. |
| by Laughlin Park | Caution advisory, last posted Jul 9, 2021. No all-clear recorded. |
| Honker Cut at King Island Marina | The state's latest record, from Oct 1, 2020, recommends no advisory. |
| Disappointment Slough below Empire Tract | Caution advisory, last posted Oct 1, 2020. No all-clear recorded. |
Advisory history
Every advisory record the state has published for White Slough, 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 15, 2023 | Disappointment Slough @ Bishop Cut | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Aug 23, 2023 | Disappointment Slough @ Bishop Cut | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Aug 7, 2023 | Disappointment Slough @ Bishop Cut | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Jun 22, 2023 | Disappointment Slough @ Bishop Cut | None | No cyano bloom w/testing; Updates from routine monitoring program-organization |
| May 23, 2023 | Disappointment Slough @ Bishop Cut | None | No cyano bloom w/testing; Updates from routine monitoring program-organization |
| Sep 2, 2022 | King Island Marina Boat Launch | General awareness | End date recorded: Oct 2, 2022. Posted algal mat general awareness |
| Sep 2, 2022 | King Island Marina Boat Launch | Caution | Advisory based on visual and toxins |
| Sep 1, 2022 | Village West Marina and Resort behind the marina in the slough and in front of the marina gas dock | General awareness | End date recorded: Oct 1, 2022. Floating/planktonic bloom observed; visual monitoring based advisory |
| Sep 1, 2022 | Village West Marina and Resort behind the marina in the slough and in front of the marina gas dock | Caution | End date recorded: Sep 1, 2022. Floating/planktonic bloom observed; visual monitoring based advisory |
| Jul 21, 2021 | King's Island Marina | Caution | visual monitoring based advisory |
| Jul 9, 2021 | by Laughlin Park | Caution | Advisory based on visual and toxins |
| Oct 1, 2020 | Honker Cut at King Island Marina | None | Rec general awareness |
| Oct 1, 2020 | Disappointment Slough below Empire Tract | 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.