Cedar Creek: toxic algae advisories

Cedar Creek, San Diego County. See all San Diego County waters.

What the state's records say

The state's latest record, from May 19, 2025, recommends no advisory.

Last advisory on file: Sep 29, 2026.

That reflects what the state knew on that date. It is not a finding that the water is safe now: blooms can return within days, and many are never reported.

Before you go, check the state's official algae page and any signs posted at the water.

Dogs at Cedar Creek

The state's latest record, from May 19, 2025, recommends no advisory. For Cedar Creek, that is not the same as an all-clear for today. Look at the water before your dog goes in: keep it out of green, blue-green or scummy water and away from mats on the shore.

More on dogs and toxic algae.

Reported spots

The state records each report at a spot, such as a beach or a boat ramp. Each spot's latest deciding record:

Each reported spot at Cedar Creek and its latest status
SpotStatus
Cedar Creek at the falls The state recorded an end date of Feb 2, 2023.
Cedar Creek 2 (907CCCR02) The state's latest record, from May 19, 2025, recommends no advisory.
Cedar Creek at the falls The state recorded an end date of Dec 31, 2022.

Advisory history

Every advisory record the state has published for Cedar Creek, newest first. "None" is the state's record that no advisory was recommended on that date. "NA" records do not change a status.

Advisory records for Cedar Creek, newest first
DateSpotState's levelNotes
Sep 29, 2026 Cedar Creek at the falls Danger End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Aug 31, 2026 Cedar Creek at the falls Danger End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Jul 1, 2026 Cedar Creek at the falls General awareness End date recorded: Feb 2, 2023. Rec general awareness
May 13, 2026 Cedar Creek at the falls None End date recorded: Feb 2, 2023. No cyano bloom w/testing
Mar 10, 2026 Cedar Creek at the falls None End date recorded: Feb 2, 2023. De-posting advisory.
Jan 6, 2026 Cedar Creek at the falls Warning End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Nov 20, 2025 Cedar Creek at the falls Caution End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Nov 13, 2025 Cedar Creek at the falls Caution End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Sep 24, 2025 Cedar Creek at the falls Caution End date recorded: Feb 2, 2023. Advisory based on visual and toxins
Aug 19, 2025 Cedar Creek at the falls None End date recorded: Feb 2, 2023. No cyano bloom w/testing
Jun 23, 2025 Cedar Creek at the falls None End date recorded: Feb 2, 2023. No cyano bloom w/testing
May 19, 2025 Cedar Creek 2 (907CCCR02) None Updates from routine monitoring program-organization
May 14, 2025 Cedar Creek at the falls None End date recorded: Feb 2, 2023. No cyano bloom w/testing
May 14, 2025 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
Aug 13, 2024 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
Jun 13, 2024 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
May 13, 2024 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
May 6, 2024 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
Aug 24, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
Jun 20, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
May 17, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Testing results below posting triggers; Updates from routine monitoring program-organization
May 17, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Updates from routine monitoring program-organization
Feb 2, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Updates from routine monitoring program-organization
Feb 2, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Updates from routine monitoring program-organization
Feb 2, 2023 Cedar Creek at the falls None End date recorded: Feb 2, 2023. Updates from routine monitoring program-organization
Jan 20, 2023 Cedar Creek at the falls Danger Updates from routine monitoring program-organization
Dec 30, 2022 Cedar Creek at the falls Danger End date recorded: Dec 31, 2022. Advisory based on visual and toxins
Dec 30, 2022 Cedar Creek at the falls Danger Updates from routine monitoring program-organization
Dec 30, 2022 Cedar Creek at the falls Danger End date recorded: Dec 31, 2022. Advisory based on visual and toxins
Dec 30, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Dec 19, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Dec 14, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Dec 9, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Dec 2, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Nov 18, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Nov 14, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Nov 4, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Nov 1, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Oct 28, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Oct 21, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Oct 18, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Oct 11, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Sep 29, 2022 Cedar Creek at the falls Danger Advisory based on visual and toxins
Sep 20, 2022 Cedar Creek at the falls Caution Floating/planktonic bloom observed; Under investigation
Jun 29, 2022 Cedar Creek at the falls None Testing results below posting triggers
Jun 29, 2022 Cedar Creek at the falls None No cyano bloom w/testing
May 16, 2022 Cedar Creek at the falls None No cyano bloom w/testing
May 16, 2022 Cedar Creek at the falls None No cyano bloom w/testing
May 16, 2022 Cedar Creek at the falls None

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.