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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:4a534cf7-3985-4c38-8af8-10920cc18320, reported Nov 2, 2026, 11:13 AM EST, retrieved 2026-11-02 17:50 UTC · Read the original notice

Current status from this report

This report does not set a map status as of Nov 2, 2026, 12:51 PM EST. Check its dates and the status rules.

A report is not a test of the water. See how we assign statuses.

Latest conditions, not at the time of this report:At the Lake Champlain at Burlington, VT gauge, 500 metres from the nearest wastewater outlet on Lake Champlain: water temperature 11.4 C (Nov 2, 2026, 12:00 PM EST). Cold water (under 15 C) keeps bacteria alive longer. Conditions are measured at the gauge, not at this spot, and do not change the status.Conditions on Lake Champlain

Source: U.S. Geological Survey via Water Data for the Nation, gauge 04294500, reading Nov 2, 2026, 12:00 PM EST, retrieved 2026-11-02 17:50 UTC. Gauge chosen by DirtyWaterWatch. · Readings and history at USGS

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: not named. Outlet: not stated. Location: 44.44201, -73.22413; 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 Champlain”. DirtyWaterWatch links this report to Lake Champlain, 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.

Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.

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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
not reported
Ended
not reported
Detail provided by the source
Times known to the minute
Reported to the source
Published
not given
Source last updated
Last retrieved by DirtyWaterWatch

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.”

Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)
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:4a534cf7-3985-4c38-8af8-10920cc18320
Original notice
Read the original notice
Earlier version
Read the earlier version
Later versions
None

Record details

Record details
Record identifiervt-advisories:cyano:4a534cf7-3985-4c38-8af8-10920cc18320
Source identifiervt-advisories
Source record numbercyano:4a534cf7-3985-4c38-8af8-10920cc18320
Earlier versionvt-advisories:cyano:886434c3-1bef-429e-8299-9a2727fecfa9
TypeCyanobacteria advisory (harmful blue-green algae)
Status in the reportAdvisory lifted
Sewer operator identifierNot provided
Sewer operatorNot provided
Federal wastewater discharge permit (NPDES)Not provided
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportLake Champlain
Linked waterslake-champlain-vt
How this report was linked to the waterthe water named in the report
Latitude44.442
Longitude-73.224
Location sourcegiven in the source record
Location accuracy, in metresNot provided
StartedNot provided
EndedNot provided
Detail provided by the sourceto the minute
Reported to the sourceNov 2, 2026, 11:13 AM EST (2026-11-02T11:13:00-05:00)
PublishedNot provided
Source last updatedNov 2, 2026, 11:13 AM EST (2026-11-02T11:13:00-05:00)
Last retrieved by DirtyWaterWatchNov 2, 2026, 12:50 PM EST (2026-11-02T17:50:57Z)
Materialcyanobacteria (visual observation)
Volume, in gallonsNot provided
Volume as reportedNot provided
How volume was determinednot stated whether estimated or measured
AuthorityVermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)
AdviceVermont 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, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://www.healthvermont.gov/environment/tracking/cyanobacteria-blue-green-algae-tracker

Original source data

{
  "OBJECTID": 3596,
  "ReportDate": 1793635980000,
  "Waterbody": "Lake Champlain",
  "Municipality": "South Burlington",
  "SiteName": "Red Rocks Beach",
  "StatusWeb": "Generally Safe",
  "GlobalID": "4a534cf7-3985-4c38-8af8-10920cc18320",
  "_layer": "Cyanobacteria_Current_Approved_Reports_View",
  "_site_key": "cyano:lake-champlain-south-burlington-red-rocks-beach",
  "_match_notes": null,
  "_layer_data_last_edit": "2026-11-02T16:41:32.298000Z",
  "_was_active": false
}

Source: Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations), record cyano:4a534cf7-3985-4c38-8af8-10920cc18320, reported Nov 2, 2026, 11:13 AM EST, retrieved 2026-11-02 17:50 UTC · Read the original notice

Staff names, email addresses and phone numbers are removed from source data before it is stored.