Frank's Tract: toxic algae advisories
Frank's Tract, Contra Costa County. See all Contra Costa County waters.
What the state's records say
Caution advisory, last posted Jul 21, 2022. No all-clear recorded.
2 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 Frank's Tract
The state has an advisory on file for Frank's Tract (Caution advisory), last posted Jul 21, 2022, 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 |
|---|---|
| Frank's Tract near Russo's Landing | The state's latest record, from Sep 15, 2023, recommends no advisory. |
| Mid Tract (FRK) | The state recorded an end date of Nov 19, 2022. |
| Mid-Tract (D19) | The state recorded an end date of Sep 3, 2022. |
| Middle of Frank's Tract | Caution advisory, last posted Jul 21, 2022. No all-clear recorded. |
| Spot not described | Caution advisory, last posted Sep 2, 2021. No all-clear recorded. |
Advisory history
Every advisory record the state has published for Frank's Tract, 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 | Frank's Tract near Russo's Landing | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Aug 23, 2023 | Frank's Tract near Russo's Landing | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Aug 7, 2023 | Frank's Tract near Russo's Landing | None | Testing results below posting triggers; Updates from routine monitoring program-organization |
| Jun 22, 2023 | Frank's Tract near Russo's Landing | None | No cyano bloom w/testing; Updates from routine monitoring program-organization |
| May 23, 2023 | Frank's Tract near Russo's Landing | None | No cyano bloom w/testing; Updates from routine monitoring program-organization |
| Oct 19, 2022 | Mid Tract (FRK) | General awareness | End date recorded: Nov 19, 2022. Posted general awareness |
| Oct 19, 2022 | Mid Tract (FRK) | Caution | Rec general awareness; Updates from routine monitoring program-organization; visual monitoring based advisory |
| Sep 15, 2022 | Mid Tract (FRK) | Caution | Rec general awareness; Updates from routine monitoring program-organization; visual monitoring based advisory |
| Sep 15, 2022 | Mid Tract (FRK) | Caution | Floating/planktonic bloom observed; Updates from routine monitoring program-organization; visual monitoring based advisory |
| Aug 25, 2022 | Mid Tract (FRK) | Caution | Floating/planktonic bloom observed; Updates from routine monitoring program-organization; visual monitoring based advisory |
| Aug 18, 2022 | Mid Tract (FRK) | Caution | Floating/planktonic bloom observed; Updates from routine monitoring program-organization; visual monitoring based advisory |
| Aug 3, 2022 | Mid-Tract (D19) | General awareness | End date recorded: Sep 3, 2022. Rec general awareness |
| Aug 3, 2022 | Mid-Tract (D19) | Caution | visual monitoring based advisory |
| Jul 22, 2022 | Mid Tract (FRK) | Caution | visual monitoring based advisory |
| Jul 22, 2022 | Mid-Tract (D19) | Caution | visual monitoring based advisory |
| Jul 21, 2022 | Middle of Frank's Tract | Caution | visual monitoring based advisory |
| Sep 2, 2021 | Spot not described | 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.