Combined sewer overflow (CSO) reported — Watertown (C) WPCP, Oct 30, 2025

Ongoing (as reported) · Watertown (C) WPCP (NY DEC Sewage Pollution Right to Know)

Source: Watertown (C) WPCP (NY DEC Sewage Pollution Right to Know), record 2246956701200467, reported Nov 6, 2025, 11:20 AM EST, retrieved 2026-11-02 20:40 UTC · Read the original notice

Current status from this report

Earlier version. A later record from the same source replaces this one. The newest version sets the map status. read the newer version

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 Black River at Watertown NY gauge, 9.5 kilometres from the nearest boat launch on Black River: flow 1,140 cubic feet per second (Nov 2, 2026, 3:30 PM EST). Conditions are measured at the gauge, not at this spot, and do not change the status.Conditions on Black River

Source: U.S. Geological Survey via Water Data for the Nation, gauge 04260500, reading Nov 2, 2026, 3:30 PM EST, retrieved 2026-11-02 21:22 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: Watertown (C) WPCP (federal wastewater discharge permit, NPDES, NY0025984). Outlet: “Kelsey CSO”. Location: 43.98944, -75.92542; 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: “Black River”. DirtyWaterWatch links this report to Black River, NY. Match basis: the water named in the report.

3. Estimated downstream stretch

No downstream estimate is available for this 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.

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: Oct 30, 2025, 11:59 AM EDT
Ended: ongoing, as last reported
Detail provided by the source: Times known to the minute
Reported to the source: Nov 6, 2025, 11:20 AM EST
Published: Nov 6, 2025, 11:20 AM EST
Source last updated: not given
Last retrieved by DirtyWaterWatch: 2026-11-02 20:40 UTC

What and how much

Type: Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.
Status in the record: Ongoing (as reported)
Material: “Untreated”
Volume: 2.69 million gallons (estimated)
Volume as reported: “2,693,914 Gallons Estimated”

Advice from Watertown (C) WPCP (NY DEC Sewage Pollution Right to Know)

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

Source and versions

Source: NY DEC Sewage Pollution Right to Know
Source record number: 2246956701200467
Original notice: Read the original notice
Earlier version: Read the earlier version
Later versions: version 2

Record details

Record details
Record identifier	ny-dec-sprtk:2246956701200467
Source identifier	ny-dec-sprtk
Source record number	2246956701200467
Earlier version	ny-dec-sprtk:2230567106000314
Type	Combined sewer overflow (CSO)
Status in the report	Ongoing (as reported)
Sewer operator identifier	ny-watertown
Sewer operator	Watertown (C) WPCP
Federal wastewater discharge permit (NPDES)	NY0025984
Outlet number	Not provided
Outlet name	Kelsey CSO
Water named in the report	Black River
Linked waters	black-river-black-river-ny
How this report was linked to the water	the water named in the report
Latitude	43.989
Longitude	-75.925
Location source	given in the source record
Location accuracy, in metres	Not provided
Started	Oct 30, 2025, 11:59 AM EDT (2025-10-30T11:59:00-04:00)
Ended	Not provided
Detail provided by the source	to the minute
Reported to the source	Nov 6, 2025, 11:20 AM EST (2025-11-06T11:20:21-05:00)
Published	Nov 6, 2025, 11:20 AM EST (2025-11-06T11:20:21-05:00)
Source last updated	Not provided
Last retrieved by DirtyWaterWatch	Nov 2, 2026, 3:40 PM EST (2026-11-02T20:40:35Z)
Material	Untreated
Volume, in gallons	2,693,914
Volume as reported	2,693,914 Gallons Estimated
How volume was determined	estimated
Authority	Watertown (C) WPCP (NY DEC Sewage Pollution Right to Know)
Advice	Not provided
Advice period, in hours	Not provided
Basis of the advice period	Not provided
Original notice	https://www.dec.ny.gov/fs/data/SPRTK_Data.xlsx

Original source data

{
  "row": {
    "notificationId": "2246956701200467",
    "sprtkAirDateTime": "11/06/2025 16:20:21",
    "notificationStatus": "Update",
    "facilityName": "Watertown (C) WPCP",
    "facilityId": "NY0025984",
    "countyName": "Jefferson",
    "streetNumber": "1016",
    "streetName": "NY 12E",
    "city": "Watertown",
    "addressDescription": "Kelsey CSO",
    "latitude": "-75.92542442593384",
    "longitude": "43.98943870068284",
    "sprtkStartDischargeDatetime": "10/30/2025 15:59:00",
    "sprtkEndDischargeDatetime": "10/31/2025 08:15:00",
    "dischargeDuration": "256 Minutes - Ongoing",
    "surfaceWater": "Yes",
    "receivingWaterBody": "Black River",
    "componentDescription": "Kelsey CSO",
    "quantity": "2,693,914 Gallons Estimated",
    "treatedState": "Untreated",
    "dischargeDescription": "Combination of rainwater and sewage",
    "stepsToContain": "Permitted CSO discharge",
    "geoaddress": "1003 W Main St, Watertown, NY 13601, USA",
    "impactedArea": "Unknown,Unknown -",
    "dischargeReason": "System Capacity,Weather Conditions - Rain event causing high flows greater than collection system can handle.",
    "systemComponent": "CSO Outfall,CSO Outfall - Kelsey CSO",
    "region": "6",
    "sprtkDischargeWaterFlow": "Manmade",
    "sprtkExplanation": "Rain event causing high flows greater than collection system can handle."
  },
  "_tab": "December 2025",
  "_row": 51,
  "_time_basis": {
    "air": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York",
    "start": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York",
    "end": "UTC in the workbook (rows aired from late May 2025); converted to America/New_York"
  },
  "_projected_end": "2025-10-31T04:15:00-04:00",
  "_projected_end_note": "NY-Alert requires an expected end time on every notice; this one is a projection, not a reported end",
  "_coords": "latitude and longitude columns swapped; a street-address geocode chosen by the notifier",
  "_event_type_basis": "a CSO outfall named in the system component",
  "_water": {
    "via": "receiving water name within New York (checked against the geocode)"
  },
  "_chain": {
    "id": "key:NY0025984|1016 ny 12e watertown|2025-10-30T15:59Z",
    "basis": "facility + address + start",
    "position": 2,
    "of": 5,
    "head": "ny-dec-sprtk:2230567106000314",
    "latest": "ny-dec-sprtk:2267881781883028"
  }
}

Source: Watertown (C) WPCP (NY DEC Sewage Pollution Right to Know), record 2246956701200467, reported Nov 6, 2025, 11:20 AM EST, retrieved 2026-11-02 20:40 UTC · Read the original notice

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