Vermont / Reports /

Cyanobacteria advisory (harmful blue-green algae) reported

Advisory lifted · Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)

Source: Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations), record cyano:97919483-4855-4863-8ea5-ff9657d60f02, reported Oct 31, 2026, 2:54 PM EDT, retrieved 2026-11-02 15:55 UTC · Read the original notice

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: not named. Outlet: not stated. Location: 43.67418, -73.20093; location source: given in the source record.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

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

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

Open on the main map

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

not reported

Ended

not reported

Detail provided by the source

Times known to the minute

Reported to the source

Oct 31, 2026, 2:54 PM EDT

Published

not given

Source last updated

Oct 31, 2026, 2:54 PM EDT

Last retrieved by DirtyWaterWatch

2026-11-02 15:55 UTC

What and how much

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 lifted

Material

“cyanobacteria (visual observation)”

Volume

volume not reported (not stated whether estimated or measured)

Volume as reported

none

Advice from Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)

“Vermont Department of Health tracker legend: Generally Safe means no blooms were observed, but there may have been tiny specks of cyanobacteria observed in the water. Conditions can and do change.”

Advice period

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

Basis

not stated

Source and versions

Source

Cyanobacteria Tracker; volunteer and staff observations

Source record number

cyano:97919483-4855-4863-8ea5-ff9657d60f02

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "OBJECTID": 3588,
  "ReportDate": 1793472840000,
  "Waterbody": "Lake Bomoseen",
  "Municipality": "Castleton",
  "SiteName": "Thomas Evanoika Access Area",
  "StatusWeb": "Generally Safe",
  "GlobalID": "97919483-4855-4863-8ea5-ff9657d60f02",
  "_layer": "Cyanobacteria_Current_Approved_Reports_View",
  "_site_key": "cyano:lake-bomoseen-castleton-thomas-evanoika-access-area",
  "_match_notes": null,
  "_layer_data_last_edit": "2026-11-02T14:41:41.734000Z",
  "_was_active": false
}