Connecticut / Reports /

Treatment plant bypass reported, Aug 24, 2026

Ended (as reported) · New Haven (CT DEEP Performance Dashboard)

Source: New Haven (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11310, 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: not named. Outlet: “Treatment Plant, 345 E Shore Pkwy, New Haven, 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: “NEW HAVEN HARBOR”. DirtyWaterWatch links this report to New Haven Harbor, CT. 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.

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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

Aug 24, 2026, 8:15 PM EDT

Ended

Aug 24, 2026, 9:30 PM EDT

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

“Disinfected Partially Treated Raw Sewage”

Volume

530,300 gallons (estimated)

Volume as reported

“0.5303 MG”

Advice from New Haven (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

Status history from this report

• Discharge or advisory reported New Haven Harbor: Discharge reported ongoing, Aug 24, 2026, 8:15 PM EDT to Aug 24, 2026, 9:30 PM EDT
• Discharge or advisory reported New Haven Harbor: Post-discharge period applies, Aug 24, 2026, 9:30 PM EDT to Aug 26, 2026, 9:30 PM EDT
• Caution New Haven Harbor: Within the caution period after the reported end, Aug 26, 2026, 9:30 PM EDT to Aug 27, 2026, 9:30 PM EDT

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-02 16:21 UTC.

Source and versions

Source

CT DEEP CSO/SSO Performance Dashboard (QScend)

Source record number

11310

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "Reporting Utility": null,
  "Status": "Closed",
  "Incident Type": "Sewage Bypass",
  "Weather Conditions": "Rain 1-2\" per hour",
  "Date Bypass Began or was Discovered": "08/24/2026",
  "Event Start Time": "08:15 PM",
  "Location of Bypass": "Treatment Plant",
  "Type of Bypass": "Disinfected Partially Treated Raw Sewage",
  "Cause of Bypass": "Excessive Flows - Storm Event",
  "Cause of Bypass Other Explanation": ".",
  "How was Incident Discovered": "SCADA",
  "Estimated Quantity or Rate of Discharge": "ONGOING",
  "How was estimated Quantity or Rate Determined": "ONGOING",
  "Reach Waterbody": "Yes",
  "Request ID": "11310",
  "Waterbody Name": "NEW HAVEN HARBOR",
  "Date Bypass Ended": "08/24/2026",
  "Event End Time": "09:30 PM",
  "Final Quantity": "0.5303 MG",
  "How was Final Volume Determined": null,
  "How incident was resolved": "Rain event ended",
  "Municipality": "New Haven",
  "Address": "345 E Shore Pkwy, New Haven, CT",
  "_view": "SSO DATA VIEW",
  "_dww_note": [
    "receiving water 'NEW HAVEN HARBOR' has no matching water record"
  ]
}