DirtyWaterWatch

Massachusetts / Events /

Combined sewer overflow: CITY OF FALL RIVER, Jul 29, 2026

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

Source: CITY OF FALL RIVER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 65a4068c-9ce0-43e5-9eb8-ba7789a4a678, published Jul 29, 2026, 2:40 PM EDT, retrieved 2026-11-02 10:58 UTC · notice

Revised. Revised by ma-massdep:798893f5-f89c-4d93-8896-22b9e33a395d. 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 FALL RIVER (MA0100382 outfall FAL006): “MIDDLE ST”. Location: 41.69666, -71.17829, from the state's or EPA's outfall layer.

2. Waters named in the notice

The notice names: “MOUNT HOPE BAY”. We place it on Narragansett Bay, MA. Matched by the outfall's ID in the outfall registry, which places each outfall on a water.

outfall MA0100382 006 (geometry, 385 m)

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
Ended
Precision
Known to the minute
Reported to the source
not given
Published
Source last updated
not given
We fetched it

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 FALL RIVER (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
65a4068c-9ce0-43e5-9eb8-ba7789a4a678
Original notice
https://eeaonline.eea.state.ma.us/portal/dep/cso-data-portal/detail…
Revision of
none (first record)
Revised by
ma-massdep:798893f5-f89c-4d93-8896-22b9e33a395d

Every field of the record

All fields of event ma-massdep:65a4068c-9ce0-43e5-9eb8-ba7789a4a678
event_idma-massdep:65a4068c-9ce0-43e5-9eb8-ba7789a4a678
source_idma-massdep
source_record_id65a4068c-9ce0-43e5-9eb8-ba7789a4a678
parent_event_idnull
event_typecso
statusended
discharger_idma-fall-river
discharger_nameCITY OF FALL RIVER
npdes_permitMA0100382
outfall_idFAL006
outfall_nameMIDDLE ST
waterbody_textMOUNT HOPE BAY
water_slugs["narragansett-bay-ma"]
water_matchoutfall_registry
lat41.696658
lon-71.178289
coord_sourceoutfall_layer
coord_precision_mnull
started_at2026-07-29T12:28:00-04:00
ended_at2026-07-29T13:30:00-04:00
time_precisionminute
reported_atnull
published_at2026-07-29T14:40:03-04:00
source_updated_atnull
fetched_at2026-11-02T10:58:11Z
materialCSO – UnTreated
volume_galnull
volume_textnull
estimate_flagunknown
authorityCITY OF FALL RIVER (MassDEP sewage notification portal)
advice_textAvoid 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_hours48
advice_window_basis314 CMR 16.04(10)(g)
source_urlhttps://eeaonline.eea.state.ma.us/portal/dep/cso-data-portal/details/65a4068c-9ce0-43e5-9eb8-ba7789a4a678
parse_errornull
fixturefalse
supersededrevised by ma-massdep:798893f5-f89c-4d93-8896-22b9e33a395d
fileevents/ma-massdep~3A65a4068c-9ce0-43e5-9eb8-ba7789a4a678.json
duplicate_ofnull
placement_noteoutfall MA0100382 006 (geometry, 385 m)
unplaced_reasonnull
set_asidenull
reachnull
reach_bandnull

The source's record (raw)

{
  "incidentId": "65a4068c-9ce0-43e5-9eb8-ba7789a4a678",
  "incidentNumber": "26016885",
  "incidentDate": "2026-07-29T00:00:00",
  "incidentTime": "12:28",
  "amPm": null,
  "reporterClass": "Public Notification Report",
  "eventType": "CSO – UnTreated",
  "permiteeClass": "CSO",
  "permiteeName": "CITY OF FALL RIVER",
  "permiteeId": "MA0100382",
  "outfallId": "FAL006",
  "municipality": "FALL RIVER",
  "reportingType": "Initial-Ceased",
  "location": "MIDDLE ST",
  "latitude": null,
  "longitude": null,
  "waterBody": "MOUNT HOPE BAY",
  "waterBodyDescription": null,
  "volumnOfEvent": "",
  "rainfallData": "",
  "hours": "",
  "minutes": "",
  "month": null,
  "year": null,
  "additionalInformation": null,
  "submittedDate": "2026-07-29T14:40:03.003",
  "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_ FAL006 (locations are estimates)",
  "_water": {
    "echo_candidate": {
      "slug": "narragansett-bay-ma",
      "match": "geometry",
      "why_not": "geometry only, name differs"
    },
    "no_slug": [
      "MOUNT HOPE BAY (no MA slug)",
      "MOUNT HOPE BAY (no MA 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 26017096: its start + verified duration"
}

Source: CITY OF FALL RIVER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 65a4068c-9ce0-43e5-9eb8-ba7789a4a678, published Jul 29, 2026, 2:40 PM EDT, retrieved 2026-11-02 10:58 UTC · notice

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