Massachusetts / Reports /

Sanitary sewer overflow (SSO) reported — CITY OF HAVERHILL, Jun 26, 2026

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

Source: CITY OF HAVERHILL (MassDEP sewage notification portal) via MassDEP CSO API behind the portal, record f13323a6-f662-484b-a3e3-0e7201accde9, published Jul 15, 2026, 2:12 PM 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 HAVERHILL (federal wastewater discharge permit, NPDES, MA0101621). Outlet: not stated. 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: “Merrimack River”. DirtyWaterWatch links this report to Merrimack 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

Jun 26, 2026, 9:00 PM EDT

Ended

Jul 1, 2026, 10:15 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

Jul 15, 2026, 2:12 PM EDT

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-02 10:58 UTC

What and how much

Type

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

“SSO – Failure of Pump Station or Associated Force Main”

Volume

34.5 million gallons (not stated whether estimated or measured)

Volume as reported

“34500000”

Advice from CITY OF HAVERHILL (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

f13323a6-f662-484b-a3e3-0e7201accde9

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "incidentId": "f13323a6-f662-484b-a3e3-0e7201accde9",
  "incidentNumber": "26016721",
  "incidentDate": "2026-06-26T00:00:00",
  "incidentTime": "21:00",
  "amPm": null,
  "reporterClass": "Verified Data Report",
  "eventType": "SSO – Failure of Pump Station or Associated Force Main",
  "permiteeClass": "CSO",
  "permiteeName": "CITY OF HAVERHILL",
  "permiteeId": "MA0101621",
  "outfallId": null,
  "municipality": "HAVERHILL",
  "reportingType": null,
  "location": "Other",
  "latitude": null,
  "longitude": null,
  "waterBody": "Other",
  "waterBodyDescription": "Merrimack River",
  "volumnOfEvent": "34500000",
  "rainfallData": "1.65",
  "hours": "109",
  "minutes": "15",
  "month": null,
  "year": null,
  "additionalInformation": "SSO Flow is based on the average daily flow to the WWTP over the last 30 days",
  "submittedDate": "2026-07-15T14:12:56.9",
  "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 109 h 15 min (Verified Data Report)",
  "_water": {
    "via": "crosswalk on portal description waterbody",
    "text": "Merrimack 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"
}