Combined sewer overflow (CSO) reported — Ogdensburg WWTP, Jul 29, 2026

Ended (as reported) · Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know)

Source: Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know), record 2637901804386051, reported Jul 30, 2026, 10:05 AM EDT, retrieved 2026-11-02 20:40 UTC · Read the original notice

Current status from this report

This report does not set a map status as of Nov 2, 2026, 4:26 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 Oswegatchie River near Heuvelton NY gauge, 2.7 kilometres from the nearest boat launch on Oswegatchie River: flow 560 cubic feet per second (Nov 2, 2026, 3:15 PM EST). Conditions are measured at the gauge, not at this spot, and do not change the status.Conditions on Oswegatchie River

Source: U.S. Geological Survey via Water Data for the Nation, gauge 04263000, reading Nov 2, 2026, 3:15 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: Ogdensburg WWTP (federal wastewater discharge permit, NPDES, NY0029831). Outlet: “In river bank across from West South St.”. Location: 44.68691, -75.49064; 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: “Oswegatchie”. DirtyWaterWatch links this report to Oswegatchie 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: Jul 29, 2026, 9:30 AM EDT
Ended: Jul 30, 2026, 9:30 AM EDT
Detail provided by the source: Times known to the minute
Reported to the source: Jul 30, 2026, 10:05 AM EDT
Published: Jul 30, 2026, 10:05 AM EDT
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: Ended (as reported)
Material: “Untreated”
Volume: 906,850 gallons (estimated)
Volume as reported: “906,850 Gallons Estimated”

Advice from Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know)

“Estimated based on other metered outfalls”
Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know)

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: 2637901804386051
Original notice: Read the original notice
Earlier version: None: this is the first record
Later versions: None

Record details

Record details
Record identifier	ny-dec-sprtk:2637901804386051
Source identifier	ny-dec-sprtk
Source record number	2637901804386051
Earlier version	Not provided
Type	Combined sewer overflow (CSO)
Status in the report	Ended (as reported)
Sewer operator identifier	ny-ogdensburg
Sewer operator	Ogdensburg WWTP
Federal wastewater discharge permit (NPDES)	NY0029831
Outlet number	Not provided
Outlet name	In river bank across from West South St.
Water named in the report	Oswegatchie
Linked waters	oswegatchie-river-ny
How this report was linked to the water	the water named in the report
Latitude	44.687
Longitude	-75.491
Location source	given in the source record
Location accuracy, in metres	Not provided
Started	Jul 29, 2026, 9:30 AM EDT (2026-07-29T09:30:00-04:00)
Ended	Jul 30, 2026, 9:30 AM EDT (2026-07-30T09:30:00-04:00)
Detail provided by the source	to the minute
Reported to the source	Jul 30, 2026, 10:05 AM EDT (2026-07-30T10:05:16-04:00)
Published	Jul 30, 2026, 10:05 AM EDT (2026-07-30T10:05:16-04:00)
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	906,850
Volume as reported	906,850 Gallons Estimated
How volume was determined	estimated
Authority	Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know)
Advice	Estimated based on other metered outfalls
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": "2637901804386051",
    "sprtkAirDateTime": "07/30/2026 14:05:16",
    "notificationStatus": "New",
    "facilityName": "Ogdensburg WWTP",
    "facilityId": "NY0029831",
    "countyName": "St. Lawrence",
    "streetNumber": "1037",
    "streetName": "South Water Street",
    "city": "Ogdensburg",
    "addressDescription": "In river bank across from West South St.",
    "latitude": "-75.49063624603272",
    "longitude": "44.68690770593254",
    "sprtkStartDischargeDatetime": "07/29/2026 13:30:00",
    "sprtkEndDischargeDatetime": "07/30/2026 13:30:00",
    "dischargeDuration": "Unknown Hours - Ended",
    "surfaceWater": "Yes",
    "receivingWaterBody": "Oswegatchie",
    "quantity": "906,850 Gallons Estimated",
    "treatedState": "Untreated",
    "stepsToContain": "Permitted CSO Discharge",
    "additionalInstructions": "Estimated based on other metered outfalls",
    "geoaddress": "1031 S Water St, Ogdensburg, NY 13669, USA",
    "impactedArea": "-",
    "dischargeReason": "Weather Conditions - Wet weather event resulting in collection system flow exceeding the treatment facility's capacity. 2.21 inches of rainfall",
    "systemComponent": "CSO Outfall -",
    "sprtkDischargeWaterFlow": "Manmade",
    "sprtkExplanation": "Wet weather event resulting in collection system flow exceeding the treatment facility's capacity. 2.21 inches of rainfall",
    "sprtkAdditionalInstructions": "Estimated based on other metered outfalls"
  },
  "_tab": "January 2026-August2026",
  "_row": 4670,
  "_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"
  },
  "_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)"
  },
  "_volume_note": "first (New) notice: NY-Alert requires a volume and an end time up front, so this figure is the notifier's estimate or placeholder, not a measured total",
  "_chain": {
    "id": "key:NY0029831|1037 south water street ogdensburg|2026-07-29T13:30Z",
    "basis": "facility + address + start",
    "position": 1,
    "of": 1,
    "head": "ny-dec-sprtk:2637901804386051",
    "latest": "ny-dec-sprtk:2637901804386051",
    "notices": [
      {
        "id": "2637901804386051",
        "status": "New",
        "aired": "2026-07-30T10:05:16-04:00"
      }
    ]
  }
}

Source: Ogdensburg WWTP (NY DEC Sewage Pollution Right to Know), record 2637901804386051, reported Jul 30, 2026, 10:05 AM EDT, 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.