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Cyanobacteria advisory (harmful blue-green algae) reported, Oct 7, 2026

Advisory active · Florida Department of Environmental Protection (Algal Bloom Sampling)

Source: Florida Department of Environmental Protection (Algal Bloom Sampling) via Florida DEP Algal Bloom Sampling, blooms and toxins by site, record 9ccf5843-98bd-43ca-8b4f-2130aad9d526, updated by the source Oct 21, 2026, 10:06 AM EDT, retrieved 2026-11-05 01:05 UTC · Read the original notice

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1. Where the advisory applies

Issued by: Florida Department of Environmental Protection (Algal Bloom Sampling). Place named: “Lake Okeechobee - LZ40”. Location: 26.90181, -80.78900; location source: given in the source record, accurate to about 10 metres.

2. Waters named in the notice

The notice names: “Lake Okeechobee”. DirtyWaterWatch links this report to Lake Okeechobee, FL. Match basis: the water named in the report.

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When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

Oct 7, 2026, 9:26 AM EDT

Ended

not reported

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Oct 21, 2026, 10:06 AM EDT

Last retrieved by DirtyWaterWatch

2026-11-05 01:05 UTC

What was reported

Type

Cyanobacteria (harmful blue-green algae) can make water unfit for contact; the issuing authority decides when its advisory ends.

Status in the record

Advisory active

Material

“algal bloom (Dominant taxon: Microcystis aeruginosa)”

Advice from Florida Department of Environmental Protection (Algal Bloom Sampling)

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Status history from this report

• Discharge or advisory reported a water not yet on the map: Official advisory in effect, Oct 7, 2026, 9:26 AM EDT to Nov 4, 2026, 9:06 AM EST
• No current status shown a water not yet on the map: advisory not re-confirmed by its source recently, no map colour, Nov 4, 2026, 9:06 AM EST to Jan 5, 2027, 8:26 AM EST (the end is scheduled: a new report can change it)

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-05 01:25 UTC.

Source and versions

Source

Florida DEP Algal Bloom Sampling, blooms and toxins by site

Source record number

9ccf5843-98bd-43ca-8b4f-2130aad9d526

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "site": "Lake Okeechobee - LZ40",
  "site_key": "lake okeechobee lz40",
  "county": "PalmBeach",
  "group": "SFWMD",
  "visits": [
    {
      "time": "2026-10-07T09:26:00-04:00",
      "globalid": "9ccf5843-98bd-43ca-8b4f-2130aad9d526",
      "bloom_observed": "No",
      "toxin_present": "Yes",
      "microcystin": "not detected",
      "other_toxins": "Anatoxin-a: not detected; Cylindrospermopsin: 0.41; Nodularin-R: not detected; Saxitoxins: not detected",
      "taxa": "Dominant taxon: Microcystis aeruginosa",
      "cyanobacteria_dominant": "Yes",
      "sample_depth": "SurfaceGrab",
      "group": "SFWMD",
      "edited": "2026-10-21T16:57:34.779000-04:00"
    },
    {
      "time": "2026-10-21T10:06:00-04:00",
      "globalid": "357eacb0-0a9b-443f-a83c-4a25976525dc",
      "bloom_observed": "No",
      "toxin_present": "Yes",
      "microcystin": "not detected",
      "other_toxins": "Anatoxin-a: not detected; Cylindrospermopsin: 0.12 I (I qualifier indicates that the reported value is between the laboratory method detection limit and the laboratory practical quantitation limit.); Nodularin-R: not detected; Saxitoxins: not detected",
      "taxa": "Dominant taxon: Microcystis aeruginosa",
      "cyanobacteria_dominant": "Yes",
      "sample_depth": "SurfaceGrab",
      "group": "SFWMD",
      "edited": "2026-10-23T08:57:27.471000-04:00"
    }
  ],
  "basis": "Florida DEP observed an algal bloom, or found an algal toxin, in a sample at this site. This is a sampling result, not a health advisory; the Florida Department of Health issues health alerts separately."
}