Massachusetts / Events /

Combined sewer overflow: SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026

Ended (as reported) · SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal)

Source: SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f60a7b04-286f-4726-81cb-a00bd3ae7fb2, published Oct 8, 2026, 12:27 PM EDT, retrieved 2026-11-02 11:54 UTC · notice

1. The reported outfall

Outfall reported by SPRINGFIELD WATER & SEWER COMMISSION (MA0101613 outfall SPR010): “CLINTON ST.”. Location: 42.10467, -72.60230, from the state's or EPA's outfall layer.

2. Waters named in the notice

The notice names: “CONNECTICUT R.”. We place it on Connecticut River, MA. Matched by the name of the water in the source record.

3. Modeled downstream reach

No modeled reach for this record in this build.

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

Sep 27, 2026, 4:45 PM EDT

Ended

Sep 27, 2026, 8:35 PM EDT

Precision

Known to the minute

Reported to the source

not given

Published

Oct 8, 2026, 12:27 PM EDT

Source last updated

not given

We fetched it

2026-11-02 11:54 UTC

What and how much

Type

Combined sewer overflow

Status in the record

Ended (as reported)

Material

“CSO – UnTreated”

Volume

779,000 gal (not stated whether estimated or measured)

Volume in the source's words

“779000”

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.”

Advice window

48 hours

Basis

314 CMR 16.04(10)(g)

What it does to the map, over time

• Advisory in effect Connecticut River: Discharge in progress, Sep 27, 2026, 4:45 PM EDT to Sep 27, 2026, 8:35 PM EDT
• Advisory in effect Connecticut River: Within the authority's advice window after the discharge ended, Sep 27, 2026, 8:35 PM EDT to Sep 29, 2026, 8:35 PM EDT
• Caution Connecticut River: Within the site's caution window after the discharge ended (data/rules.json), Sep 29, 2026, 8:35 PM EDT to Sep 30, 2026, 8:35 PM EDT
• Advisory in effect Connecticut River: Discharge in progress, Sep 27, 2026, 4:45 PM EDT to Sep 27, 2026, 8:35 PM EDT
• Advisory in effect Connecticut River: Within the authority's advice window after the discharge ended, Sep 27, 2026, 8:35 PM EDT to Sep 29, 2026, 8:35 PM EDT
• Caution Connecticut River: Within the site's caution window after the discharge ended (data/rules.json), Sep 29, 2026, 8:35 PM EDT to Sep 30, 2026, 8:35 PM EDT

Source: intervals computed by DirtyWaterWatch (build/status.py) from this record and the rules on the methods page, as of 2026-11-02 11:56 UTC.

Source and revisions

Source

MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/)

Record id at the source

f60a7b04-286f-4726-81cb-a00bd3ae7fb2

Original notice

https://eeaonline.eea.state.ma.us/portal/dep/cso-data-portal/detail…

Revision of

ma-massdep:84e05387-5b27-4ff9-9506-90af44ec56b0

Revised by

no later revision

{
  "incidentId": "f60a7b04-286f-4726-81cb-a00bd3ae7fb2",
  "incidentNumber": "26017695",
  "incidentDate": "2026-09-27T00:00:00",
  "incidentTime": "16:45",
  "amPm": null,
  "reporterClass": "Verified Data Report",
  "eventType": "CSO – UnTreated",
  "permiteeClass": "CSO",
  "permiteeName": "SPRINGFIELD WATER & SEWER COMMISSION",
  "permiteeId": "MA0101613",
  "outfallId": "SPR010",
  "municipality": "SPRINGFIELD",
  "reportingType": null,
  "location": "CLINTON ST.",
  "latitude": null,
  "longitude": null,
  "waterBody": "CONNECTICUT R.",
  "waterBodyDescription": null,
  "volumnOfEvent": "779000",
  "rainfallData": "1.57",
  "hours": "3",
  "minutes": "50",
  "month": null,
  "year": null,
  "additionalInformation": null,
  "submittedDate": "2026-10-08T12:27:11.613",
  "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 3 h 50 min (Verified Data Report)",
  "_coords": "MassDEP CSOs layer DEP_OUTFL_ SPR010 (locations are estimates)",
  "_water": {
    "via": "crosswalk on portal waterbody",
    "text": "CONNECTICUT R.",
    "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",
  "_link_basis": "same permittee and outfall as notice 26017616; start times 0 min apart"
}