Connecticut / Reports /

Treatment plant bypass reported — STAMFORD, Aug 20, 2026

Ended (as reported) · STAMFORD (CT DEEP Performance Dashboard)

Source: STAMFORD (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11254, the source gives no report time, retrieved 2026-11-02 11:20 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: STAMFORD (federal wastewater discharge permit, NPDES, CT0101087). Outlet: “Treatment Plant, 111 Harbor View Ave, Stamford, CT”. Location: not given in the report or in the outlet records.

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

2. Waters named in the notice

The notice names: “East Branch Harbor Canal”. Not linked to a mapped water.

3. Estimated downstream stretch

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

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

Aug 20, 2026, 12:30 PM EDT

Ended

not reported

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-02 11:20 UTC

What and how much

Type

Treatment bypass: wastewater skips one or more treatment steps.

Status in the record

Ended (as reported)

Material

“Fully treated raw sewage except disinfection”

Volume

10,535 gallons (estimated)

Volume as reported

“10,535 gallons”

Advice from STAMFORD (CT DEEP Performance Dashboard)

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

CT DEEP CSO/SSO Performance Dashboard (QScend)

Source record number

11254

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "Reporting Utility": "STAMFORD",
  "Status": "Closed",
  "Incident Type": "Sewage Bypass",
  "Weather Conditions": "Dry",
  "Date Bypass Began or was Discovered": "08/20/2026",
  "Event Start Time": "12:30 PM",
  "Location of Bypass": "Treatment Plant",
  "Type of Bypass": "Fully treated raw sewage except disinfection",
  "Cause of Bypass": "Electrical Equipment Failure",
  "Cause of Bypass Other Explanation": "Loss of incoming utility power",
  "How was Incident Discovered": "loss of power",
  "Estimated Quantity or Rate of Discharge": "10,535 gallons",
  "How was estimated Quantity or Rate Determined": "Estimated Volume Calculation:16.55 MGD = 191.55 gallons/second191.55 gallons/second × 55 seconds = 10,535 gallons",
  "Reach Waterbody": "Yes",
  "Request ID": "11254",
  "Waterbody Name": "East Branch Harbor Canal",
  "Date Bypass Ended": null,
  "Event End Time": null,
  "Final Quantity": null,
  "How was Final Volume Determined": null,
  "How incident was resolved": null,
  "Municipality": "Stamford",
  "Address": "111 Harbor View Ave, Stamford, CT",
  "_view": "SSO DATA VIEW",
  "_dww_note": [
    "receiving water 'East Branch Harbor Canal' has no matching water record"
  ]
}