Massachusetts / Reports /

Combined sewer overflow (CSO) reported — CITY OF NEW BEDFORD, May 9, 2026

Ended (as reported) · CITY OF NEW BEDFORD (MassDEP sewage notification portal)

Source: CITY OF NEW BEDFORD (MassDEP sewage notification portal) via MassDEP CSO API behind the portal, record f4583335-a218-49f1-961e-6d1b860c714f, published Jun 12, 2026, 7:19 AM EDT, retrieved 2026-11-02 10:58 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: CITY OF NEW BEDFORD (federal wastewater discharge permit, NPDES, MA0100781). Outlet: NEW023 “COFFIN AVE”. Location: 41.66314, -70.91809; location source: from the state's or EPA's outfall layer.

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

2. Waters named in the notice

The notice names: “ACUSHNET RIVER”. DirtyWaterWatch links this report to Acushnet River, MA. Match basis: the water named in the report.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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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

May 9, 2026, 7:55 PM EDT

Ended

May 9, 2026, 8:20 PM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

Jun 12, 2026, 7:19 AM EDT

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-02 10:58 UTC

What and how much

Type

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.

Status in the record

Ended (as reported)

Material

“CSO – UnTreated”

Volume

11,810 gallons (not stated whether estimated or measured)

Volume as reported

“11810”

Advice from CITY OF NEW BEDFORD (MassDEP sewage notification portal)

“Avoid contact with these water bodies for 48 hours after the discharge or overflow ceases due to increased health risks from bacteria and other pollutants. See website for more information on whether specific resource areas, such as bathing beaches, are affected.”

Advice period

48 hours

Basis

314 CMR 16.04(10)(g)

Source and versions

Source

MassDEP CSO API behind the portal

Source record number

f4583335-a218-49f1-961e-6d1b860c714f

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "incidentId": "f4583335-a218-49f1-961e-6d1b860c714f",
  "incidentNumber": "26016299",
  "incidentDate": "2026-05-09T00:00:00",
  "incidentTime": "19:55",
  "amPm": null,
  "reporterClass": "Verified Data Report",
  "eventType": "CSO – UnTreated",
  "permiteeClass": "CSO",
  "permiteeName": "CITY OF NEW BEDFORD",
  "permiteeId": "MA0100781",
  "outfallId": "NEW023",
  "municipality": "NEW BEDFORD",
  "reportingType": null,
  "location": "COFFIN AVE",
  "latitude": null,
  "longitude": null,
  "waterBody": "ACUSHNET RIVER",
  "waterBodyDescription": null,
  "volumnOfEvent": "11810",
  "rainfallData": "0.19",
  "hours": "0",
  "minutes": "25",
  "month": null,
  "year": null,
  "additionalInformation": null,
  "submittedDate": "2026-06-12T07:19:29.907",
  "parentIncidentId": null,
  "_report_class": "Verified Data Report",
  "_tz_assumed": "America/New_York (portal gives local clock time without zone)",
  "_ended_at_basis": "computed: started_at + verified duration 0 h 25 min (Verified Data Report)",
  "_coords": "MassDEP CSOs layer DEP_OUTFL_ NEW023 (locations are estimates)",
  "_water": {
    "via": "crosswalk on portal waterbody",
    "text": "ACUSHNET RIVER",
    "confidence": "high"
  },
  "_volume_note": "verified by permittee, reported to MassDEP (metered or modelled not stated)",
  "_advice_source": "required wording of 314 CMR 16.04(10)(g); the permittee's own advisory is only in an attachment the portal will not serve"
}