Cyanobacteria advisory (harmful blue-green algae) reported, Nov 5, 2026
Advisory active · Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)
Source: Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations), record cyano:085fc4ac-3889-4605-86f8-633f59bacbc0, reported Nov 5, 2026, 9:30 AM EST, retrieved 2026-11-06 08:49 UTC · Read the original notice
Current status from this report
Discharge or advisory reported not linked to a mapped water: Official advisory in effect. Current rule period ends Nov 19, 2026, 9:30 AM EST. This is not a water-quality test.
Why this status: Discharge or advisory reported: official advisory.
Why we use this rule: An official advisory is listed. We show it while the authority keeps it in place; an old or missing update does not mean the advisory was lifted.
A report is not a test of the water. See how we assign statuses.
Read the original notice · Report an error
1. Where the advisory applies
Issued by: Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations). Location: 42.87287, -72.88783; location source: given in the source record.
2. Waters named in the notice
The notice names: “North Branch Deerfield River”. DirtyWaterWatch links this report to North Branch Deerfield River, VT. Match basis: the water named in the report.
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.
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
- 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 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
- “cyanobacteria (visual observation)”
Advice from Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations)
“Vermont Department of Health tracker legend: High Alert means a lot of cyanobacteria were observed collecting into a dense bloom that extends at least 10-15 feet offshore.”
- 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, Nov 5, 2026, 9:30 AM EST to Nov 19, 2026, 9:30 AM EST (the end is scheduled: a new report can change it)
- No current status shown a water not yet on the map: advisory not re-confirmed by its source recently, no map colour, Nov 19, 2026, 9:30 AM EST to Feb 3, 2027, 9:30 AM EST (scheduled: a new report can change it)
Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-06 09:03 UTC.
Source and versions
- Source
- Cyanobacteria Tracker; volunteer and staff observations
- Source record number
- cyano:085fc4ac-3889-4605-86f8-633f59bacbc0
- Original notice
- Read the original notice
- Earlier version
- None: this is the first record
- Later versions
- None
Record details
| Record identifier | vt-advisories:cyano:085fc4ac-3889-4605-86f8-633f59bacbc0 |
|---|---|
| Source identifier | vt-advisories |
| Source record number | cyano:085fc4ac-3889-4605-86f8-633f59bacbc0 |
| Earlier version | Not provided |
| Type | Cyanobacteria advisory (harmful blue-green algae) |
| Status in the report | Advisory active |
| Sewer operator identifier | Not provided |
| Sewer operator | Not provided |
| Federal wastewater discharge permit (NPDES) | Not provided |
| Outlet number | Not provided |
| Outlet name | Not provided |
| Water named in the report | North Branch Deerfield River |
| Linked waters | north-branch-deerfield-river-vt |
| How this report was linked to the water | the water named in the report |
| Latitude | 42.873 |
| Longitude | -72.888 |
| Location source | given in the source record |
| Location accuracy, in metres | Not provided |
| Started | Nov 5, 2026, 9:30 AM EST (2026-11-05T09:30:00-05:00) |
| Ended | Not provided |
| Detail provided by the source | to the minute |
| Reported to the source | Nov 5, 2026, 9:30 AM EST (2026-11-05T09:30:00-05:00) |
| Published | Not provided |
| Source last updated | Nov 5, 2026, 9:30 AM EST (2026-11-05T09:30:00-05:00) |
| Last retrieved by DirtyWaterWatch | Nov 6, 2026, 3:49 AM EST (2026-11-06T08:49:09Z) |
| Material | cyanobacteria (visual observation) |
| Volume, in gallons | Not provided |
| Volume as reported | Not provided |
| How volume was determined | not stated whether estimated or measured |
| Authority | Vermont Department of Health (Cyanobacteria Tracker; volunteer and staff observations) |
| Advice | Quoted in full above |
| Advice period, in hours | Not provided |
| Basis of the advice period | Not provided |
| Original notice | https://www.healthvermont.gov/environment/tracking/cyanobacteria-blue-green-algae-tracker |
Original source data
{
"OBJECTID": 3618,
"ReportDate": 1793889000000,
"Waterbody": "North Branch Deerfield River",
"Municipality": "Wilmington",
"SiteName": "North Branch Deerfield River Near Harriman Res.",
"StatusWeb": "High Alert",
"GlobalID": "085fc4ac-3889-4605-86f8-633f59bacbc0"
} Staff names, email addresses and phone numbers are removed from source data before it is stored.