Connecticut / Events /

Sanitary sewer overflow: GROTON, TOWN OF, Aug 3, 2026

Not stated by the source · GROTON, TOWN OF (CT DEEP Performance Dashboard)

Source: GROTON, TOWN OF (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11165, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice

1. The reported outfall

Outfall reported by GROTON, TOWN OF: “Manhole, 1286 Poquonnock Rd, Groton, CT”. Location: 41.34680, -72.03810, given in the source record, precision about 11 m.

2. Waters named in the notice

The notice names: “Poquonnock River at South rd/ RT 1 area”. We place it on Poquonock River, CT. Matched by the name of the water in the source record.

3. Modeled downstream reach

No modeled reach for this record in this build.

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

Aug 3, 2026, 12:00 PM EDT

Ended

not reported

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

Not stated by the source

Material

“Raw Sewage”

Volume

36,000 gal (estimated)

Volume in the source's words

“36000 gal”

Advice

The record carries no advice text from GROTON, TOWN OF (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

• Caution Poquonock River: Discharge record with no status and no reported end, Aug 3, 2026, 12:00 PM EDT to Aug 17, 2026, 12:00 PM EDT
• Unresolved: no end reported Poquonock River: Unresolved: no end reported, Aug 17, 2026, 12:00 PM EDT to Sep 2, 2026, 12:00 PM EDT
• No current report Poquonock River: Unresolved: no end reported (off the map after 30 days), Sep 2, 2026, 12:00 PM EDT to Nov 1, 2026, 11:00 AM EST

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

11165

Original notice

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

Revision of

none (first record)

Revised by

no later revision

{
  "Reporting Utility": "GROTON, TOWN OF",
  "Status": "Open",
  "Incident Type": "Sewage Bypass",
  "Weather Conditions": "Rain 1-2\" per hour",
  "Date Bypass Began or was Discovered": "08/03/2026",
  "Event Start Time": "12:00 PM",
  "Location of Bypass": "Manhole",
  "Type of Bypass": "Raw Sewage",
  "Cause of Bypass": "Excessive Flows - Storm Event",
  "Cause of Bypass Other Explanation": null,
  "How was Incident Discovered": "SCADA alarm system",
  "Estimated Quantity or Rate of Discharge": "36000 gal",
  "How was estimated Quantity or Rate Determined": "Estimated from time and flowrate at adjacent pump station",
  "Reach Waterbody": "Yes",
  "Request ID": "11165",
  "Waterbody Name": "Poquonnock River at South rd/ RT 1 area",
  "Date Bypass Ended": null,
  "Event End Time": null,
  "Final Quantity": null,
  "How was Final Volume Determined": null,
  "How incident was resolved": null,
  "Municipality": "Groton",
  "Address": "1286 Poquonnock Rd, Groton, CT",
  "_view": "SSO DATA VIEW",
  "_dww_note": [
    "source status 'Open' with no end, started more than 7 days before the fetch: DEEP's Open flag is not maintained by operators, so this is not treated as ongoing"
  ],
  "_map_point": {
    "lat": 41.3468,
    "lon": -72.0381,
    "chart": "Open SSO Bypasses by Location"
  }
}