Combined sewer overflow: CITY OF HAVERHILL, Jul 22, 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 (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 134befd7-6242-470d-995e-1eb789786852, published Jul 23, 2026, 7:11 AM EDT, retrieved 2026-11-02 10:58 UTC · notice

Revised. Revised by ma-massdep:583b898c-280c-43a0-9710-58b01370ff58. The newest revision is the one used for the map. see the revision

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

1. The reported outfall

Outfall reported by CITY OF HAVERHILL (MA0101621 outfall HAV021F): “LOCKE STREET CENTER BARRELL”. Location: 42.77517, -71.08493, from the state's or EPA's outfall layer.

2. Waters named in the notice

The notice names: “LITTLE RIVER”. Not placed on a tracked water.

3. Modeled downstream reach

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

Source: water outlines from OpenBoatLaunch and OpenStreetMap contributors (ODbL); outfalls from EPA ECHO and the state outfall layers; modeled reaches computed by DirtyWaterWatch from USGS NLDI, NHDPlus and the nearest USGS gauge (Jobson 1996); basemap OpenFreeMap and OpenMapTiles.

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: Jul 22, 2026, 12:30 PM EDT
Ended: Jul 22, 2026, 12:35 PM EDT
Precision: Known to the minute
Reported to the source: not given
Published: Jul 23, 2026, 7:11 AM EDT
Source last updated: not given
We fetched it: 2026-11-02 10:58 UTC

What and how much

Type: Combined sewer overflow
Status in the record: Ended (as reported)
Material: “CSO – UnTreated”
Volume: not reported (not stated whether estimated or measured)
Volume in the source's words: none

Advice

“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.”
CITY OF HAVERHILL (MassDEP sewage notification portal) · 314 CMR 16.04(10)(g)

Advice window: 48 hours
Basis: 314 CMR 16.04(10)(g)

Source and revisions

Source: MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/)
Record id at the source: 134befd7-6242-470d-995e-1eb789786852
Original notice: https://eeaonline.eea.state.ma.us/portal/dep/cso-data-portal/detail…
Revision of: none (first record)
Revised by: ma-massdep:583b898c-280c-43a0-9710-58b01370ff58

Every field of the record

All fields of event ma-massdep:134befd7-6242-470d-995e-1eb789786852
`event_id`	ma-massdep:134befd7-6242-470d-995e-1eb789786852
`source_id`	ma-massdep
`source_record_id`	134befd7-6242-470d-995e-1eb789786852
`parent_event_id`	null
`event_type`	cso
`status`	ended
`discharger_id`	ma-haverhill
`discharger_name`	CITY OF HAVERHILL
`npdes_permit`	MA0101621
`outfall_id`	HAV021F
`outfall_name`	LOCKE STREET CENTER BARRELL
`waterbody_text`	LITTLE RIVER
`water_slugs`	[]
`water_match`	none
`lat`	42.775169
`lon`	-71.08493
`coord_source`	outfall_layer
`coord_precision_m`	null
`started_at`	2026-07-22T12:30:00-04:00
`ended_at`	2026-07-22T12:35:00-04:00
`time_precision`	minute
`reported_at`	null
`published_at`	2026-07-23T07:11:34-04:00
`source_updated_at`	null
`fetched_at`	2026-11-02T10:58:11Z
`material`	CSO – UnTreated
`volume_gal`	null
`volume_text`	null
`estimate_flag`	unknown
`authority`	CITY OF HAVERHILL (MassDEP sewage notification portal)
`advice_text`	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_window_hours`	48
`advice_window_basis`	314 CMR 16.04(10)(g)
`source_url`	https://eeaonline.eea.state.ma.us/portal/dep/cso-data-portal/details/134befd7-6242-470d-995e-1eb789786852
`parse_error`	null
`fixture`	false
`superseded`	revised by ma-massdep:583b898c-280c-43a0-9710-58b01370ff58
`file`	events/ma-massdep~3A134befd7-6242-470d-995e-1eb789786852.json
`duplicate_of`	null
`placement_note`	null
`unplaced_reason`	null
`set_aside`	null
`reach`	null
`reach_band`	null

The source's record (raw)

{
  "incidentId": "134befd7-6242-470d-995e-1eb789786852",
  "incidentNumber": "26016818",
  "incidentDate": "2026-07-22T00:00:00",
  "incidentTime": "12:30",
  "amPm": null,
  "reporterClass": "Public Notification Report",
  "eventType": "CSO – UnTreated",
  "permiteeClass": "CSO",
  "permiteeName": "CITY OF HAVERHILL",
  "permiteeId": "MA0101621",
  "outfallId": "HAV021F",
  "municipality": "HAVERHILL",
  "reportingType": "Initial-Ceased",
  "location": "LOCKE STREET CENTER BARRELL",
  "latitude": null,
  "longitude": null,
  "waterBody": "LITTLE RIVER",
  "waterBodyDescription": null,
  "volumnOfEvent": "",
  "rainfallData": "",
  "hours": "",
  "minutes": "",
  "month": null,
  "year": null,
  "additionalInformation": null,
  "submittedDate": "2026-07-23T07:11:34.01",
  "parentIncidentId": null,
  "_report_class": "Public Notification Report",
  "_tz_assumed": "America/New_York (portal gives local clock time without zone)",
  "_ended_note": "reported ceased; the portal gives no cessation time",
  "_coords": "MassDEP CSOs layer DEP_OUTFL_ HAV021F (locations are estimates)",
  "_water": {
    "no_slug": [
      "LITTLE RIVER (Haverhill Little River - no slug)",
      "LITTLE RIVER (Haverhill Little River - no slug)"
    ]
  },
  "_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",
  "_ended_at_basis": "from Verified Data Report 26017265: its start + verified duration"
}

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