Connecticut / Events /

Sanitary sewer overflow: DARIEN, Sep 13, 2026

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

Source: DARIEN (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11450, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice

1. The reported outfall

Outfall reported by DARIEN: “Lateral - Private, 16 Outlook Dr, Darien, CT”. Location: no coordinates in the record or the outfall registry.

2. Waters named in the notice

The notice names: “Long Island Sound”. We place it on Long Island Sound, CT. Matched by the name of the water in the source record.

3. Modeled downstream reach

Not modeled: the reach model runs on rivers above the head of tide only.

Open on the main map

When: three different times

The time of the event, the time the source reported, published or updated it, and the time we fetched it are kept apart. Times are shown in New England time; the record keeps the original offsets.

Started

Sep 13, 2026, 11:00 AM EDT

Ended

Sep 13, 2026, 2:00 PM EDT

Precision

Known to the minute

Reported to the source

not given

Published

not given

Source last updated

not given

We fetched it

2026-11-02 11:20 UTC

What and how much

Type

Sanitary sewer overflow

Status in the record

Ended (as reported)

Material

“Raw Sewage”

Volume

480 gal (not stated whether estimated or measured)

Volume in the source's words

“480 gallons”

Advice

The record carries no advice text from DARIEN (CT DEEP Performance Dashboard).

Advice window

not stated in the record; the state's window on the methods page applies

Basis

not stated

What it does to the map, over time

• Advisory in effect Long Island Sound: Discharge in progress, Sep 13, 2026, 11:00 AM EDT to Sep 13, 2026, 2:00 PM EDT
• Advisory in effect Long Island Sound: Within the authority's advice window after the discharge ended, Sep 13, 2026, 2:00 PM EDT to Sep 15, 2026, 2:00 PM EDT
• Caution Long Island Sound: Within the site's caution window after the discharge ended (data/rules.json), Sep 15, 2026, 2:00 PM EDT to Sep 16, 2026, 2:00 PM EDT

Source: intervals computed by DirtyWaterWatch (build/status.py) from this record and the rules on the methods page, as of 2026-11-02 11:56 UTC.

Source and revisions

Source

CT DEEP CSO/SSO Performance Dashboard (QScend)

Record id at the source

11450

Original notice

https://deepct.qscend.mygovcenter.com/cms/cms?id=1

Revision of

none (first record)

Revised by

no later revision

{
  "Reporting Utility": "DARIEN",
  "Status": "Closed",
  "Incident Type": "Sewage Bypass",
  "Weather Conditions": "Rain 1-2\" per hour",
  "Date Bypass Began or was Discovered": "09/13/2026",
  "Event Start Time": "11:00 AM",
  "Location of Bypass": "Lateral - Private",
  "Type of Bypass": "Raw Sewage",
  "Cause of Bypass": "Excessive Flows - Storm Event",
  "Cause of Bypass Other Explanation": "High flows in main - cap on lateral cleanout failed and allowed sewage release in front yard.",
  "How was Incident Discovered": "Sewer crew inpection",
  "Estimated Quantity or Rate of Discharge": "8 gpm11 am to 2 pm, 3 hrs, 8 g/m, 480 gallons total.",
  "How was estimated Quantity or Rate Determined": "visual observations/estimate",
  "Reach Waterbody": "No",
  "Request ID": "11450",
  "Waterbody Name": "Long Island Sound",
  "Date Bypass Ended": "09/13/2026",
  "Event End Time": "02:00 PM",
  "Final Quantity": "480 gallons",
  "How was Final Volume Determined": null,
  "How incident was resolved": "flow subsided",
  "Municipality": "Darien",
  "Address": "16 Outlook Dr, Darien, CT",
  "_view": "SSO DATA VIEW",
  "_dww_note": [
    "source says the discharge did not reach a waterbody (Reach Waterbody: No): no water assigned"
  ]
}