Sanitary sewer overflow: GREENWICH (GRASS ISLAND WPCF), Sep 13, 2026

Ended (as reported) · GREENWICH (GRASS ISLAND WPCF) (CT DEEP Performance Dashboard)

Source: GREENWICH (GRASS ISLAND WPCF) (CT DEEP Performance Dashboard) via CT DEEP CSO/SSO Performance Dashboard (QScend), record 11471, the source gives no report time, retrieved 2026-11-02 11:20 UTC · notice

Colours no water as of Nov 2, 2026, 6:56 AM EST: the windows on the methods page have passed, or the record has no time to count from.

A report is not a test of the water. See how statuses are worked out.

1. The reported outfall

Outfall reported by GREENWICH (GRASS ISLAND WPCF) (CT0100234): “Manhole, 3 Irvine Rd, Greenwich, CT”. Location: no coordinates in the record or the outfall registry.

2. Waters named in the notice

The notice names: “Not sure, but believe it is called Greenwich Cove”. Not placed on a tracked water.

3. Modeled downstream reach

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

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, 3:15 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: 2,400 gal (estimated)
Volume in the source's words: “Approximately 2,400 gallons”

Advice

The record carries no advice text from GREENWICH (GRASS ISLAND WPCF) (CT DEEP Performance Dashboard).

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

Source and revisions

Source: CT DEEP CSO/SSO Performance Dashboard (QScend)
Record id at the source: 11471
Original notice: https://deepct.qscend.mygovcenter.com/cms/cms?id=1
Revision of: none (first record)
Revised by: no later revision

Every field of the record

All fields of event ct-deep:11471
`event_id`	ct-deep:11471
`source_id`	ct-deep
`source_record_id`	11471
`parent_event_id`	null
`event_type`	sso
`status`	ended
`discharger_id`	ct-greenwich-grass-island
`discharger_name`	GREENWICH (GRASS ISLAND WPCF)
`npdes_permit`	CT0100234
`outfall_id`	null
`outfall_name`	Manhole, 3 Irvine Rd, Greenwich, CT
`waterbody_text`	Not sure, but believe it is called Greenwich Cove
`water_slugs`	[]
`water_match`	none
`lat`	null
`lon`	null
`coord_source`	null
`coord_precision_m`	null
`started_at`	2026-09-13T11:00:00-04:00
`ended_at`	2026-09-13T15:15:00-04:00
`time_precision`	minute
`reported_at`	null
`published_at`	null
`source_updated_at`	null
`fetched_at`	2026-11-02T11:20:59Z
`material`	Raw Sewage
`volume_gal`	2400
`volume_text`	Approximately 2,400 gallons
`estimate_flag`	estimated
`authority`	GREENWICH (GRASS ISLAND WPCF) (CT DEEP Performance Dashboard)
`advice_text`	null
`advice_window_hours`	null
`advice_window_basis`	null
`source_url`	https://deepct.qscend.mygovcenter.com/cms/cms?id=1
`parse_error`	null
`fixture`	false
`file`	events/ct-deep~3A11471.json
`placement_note`	null
`unplaced_reason`	null
`set_aside`	null
`superseded`	null
`duplicate_of`	null
`reach`	null
`reach_band`	null

The source's record (raw)

{
  "Reporting Utility": "GREENWICH (GRASS ISLAND WPCF)",
  "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": "Manhole",
  "Type of Bypass": "Raw Sewage",
  "Cause of Bypass": "Excessive Flows - Storm Event",
  "Cause of Bypass Other Explanation": "Significant rainfall in a fairly short duration",
  "How was Incident Discovered": "Visual observation from collection system staff responding to storm event and checking the system",
  "Estimated Quantity or Rate of Discharge": "Approximately 2,400 gallons",
  "How was estimated Quantity or Rate Determined": "Based on visual observations and duration",
  "Reach Waterbody": "Yes",
  "Request ID": "11471",
  "Waterbody Name": "Not sure, but believe it is called Greenwich Cove",
  "Date Bypass Ended": "09/13/2026",
  "Event End Time": "03:15 PM",
  "Final Quantity": "Approximately 2,400 gallons",
  "How was Final Volume Determined": null,
  "How incident was resolved": "Rain subsided and collection system was able to catch up",
  "Municipality": "Greenwich",
  "Address": "3 Irvine Rd, Greenwich, CT",
  "_view": "SSO DATA VIEW",
  "_dww_note": [
    "receiving water 'Not sure, but believe it is called Greenwich Cove' has no matching water record"
  ]
}

Personal fields (names, emails, phone numbers of staff) are removed from raw records before they are stored.