Springfield Water and Sewer Commission
CSO · Massachusetts · Springfield, Agawam, West Springfield, Longmeadow, East Longmeadow, Ludlow
- NPDES permit
- MA0101613
- Outfalls
- 23 with coordinates in the registry (the state's layer lists 24)
- Receiving waters
- CHICOPEE R.; CONNECTICUT R.; CONNECTICUT RIVER; MILL R.
- Tracked waters
- Chicopee River, MA, Connecticut River, MA, Chicopee River Reservoir, MA, Lake Massasoit, MA
- Events tracked
- 2,050 discharges · latest Oct 16, 2026, 6:55 PM EDT
- Volume reported
- 1,765,176,340 gallons across the 1,533 discharges that give a volume (517 without one)
Source: discharger record from the project's research and EPA ECHO (dischargers.json); counts from the 2,050 event records below, as of 2026-11-02 11:56 UTC.
How it tells the public
springfieldalerts.com/Suez (SWSC advisory site, operated with Veolia): email list via Constant Contact 'CSO Notification - Public' (sign-up on the site; not subscribed); live CSO map by Aquasight/ADS embedded at springfieldalerts.com/Suez/index.php/cso-alerts/ (5-minute poll, last 48-56 h only; vendor API needs an X-Dreamfactory-API-Key embedded in the page JS, not used); per-outfall estimate table at /index.php/cso-public-advisory-notice/; SSO and blending pages are blank templates. waterandsewer.org/education/csos/ (24 outfalls). SWSC general alerts via Everbridge (member.everbridge.net/311578402488474/new). MassDEP portal PN reports usually next morning (median 18 h from start, Jul-Oct 2026).
Source: the project's research on each operator's notification channel (research/<state>/dischargers.json), checked by fetching the operator's pages.
Outfalls
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.
23 outfalls in the registry
- 007 ROWLAND ST. · CSO · Connecticut River
- 008 WASHBURN ST. · CSO · Connecticut River
- 010 CLINTON ST. · CSO · Connecticut River
- 011 LIBERTY ST. · CSO · Connecticut River
- 012 WORTHINGTON ST. · CSO · Connecticut River
- 013 BRIDGE ST. · CSO · Connecticut River
- 014 ELM ST. · CSO · Connecticut River
- 015 015A and 015B: UNION ST. · CSO · Connecticut River
- 016 YORK ST. · CSO · Connecticut River
- 017 FORT PLEASANT (BLAKE HILL) · CSO · Mill River · not on a tracked water
- 018 LONGHILL ST. · CSO · Connecticut River
- 019 MILL, ORANGE & LOCUST STS. · CSO · Mill River · not on a tracked water
- 024 RIFLE & CENTRAL STS. · CSO · Mill River
- 025 ALLEN & OAKLAND STS. · CSO · Mill River
- 034 MAIN ST. · CSO · Chicopee River
- 035 FRONT & OAK ST. · CSO · Chicopee River
- 036 036A: PINEVALE & WATER ST · CSO · Chicopee River
- 037 CEDAR ST. · CSO · Chicopee River
- 042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND · CSO · Connecticut River
- 045 FORT PLEASANT AVE. · CSO · Mill River · not on a tracked water
- 046 BELMONT ST. · CSO · Mill River · not on a tracked water
- 048 ALLEN & RIFLE STS. · CSO · Mill River
- 049 SPRINGFIELD ST. · CSO · Connecticut River
Source: EPA ECHO CSO outfall inventory matched to waters (data/outfalls-ne.json).
Event history
| Start | End | Water | Outfall | Type | Volume | Source | Links |
|---|---|---|---|---|---|---|---|
| Oct 16, 2026, 6:55 PM EDT | ended, time not reported | Connecticut River, MA | SPR016 YORK ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 4d712e65-4444-4861-a31a-c1eb7b6110fe, published Oct 19, 2026, 8:43 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:55 PM EDT · Map |
| Oct 16, 2026, 6:50 PM EDT | ended, time not reported | “MILL R.” (not placed) | SPR045 FORT PLEASANT AVE. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0c02dc0c-e337-4310-9e36-70e2a1cbce7e, published Oct 19, 2026, 8:45 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:50 PM EDT · Map |
| Oct 16, 2026, 6:50 PM EDT | ended, time not reported | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 8ae07334-6731-486d-ae7a-1b3737f23f45, published Oct 19, 2026, 8:44 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:50 PM EDT · Map |
| Oct 16, 2026, 6:50 PM EDT | ended, time not reported | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1f3939b3-ee0b-47da-b0a9-6779f0ce1aab, published Oct 19, 2026, 8:42 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:50 PM EDT · Map |
| Oct 16, 2026, 6:45 PM EDT | ended, time not reported | Lake Massasoit, MA | SPR025 ALLEN & OAKLAND STS. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 788b492a-cd0d-42b6-bf80-1b8598f0bbe9, published Oct 19, 2026, 8:41 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:45 PM EDT · Map |
| Oct 16, 2026, 6:40 PM EDT | ended, time not reported | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 548f9528-5305-4589-aa0f-32e1e49affde, published Oct 19, 2026, 8:41 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 6:40 PM EDT · Map |
| Oct 16, 2026, 9:25 AM EDT | ended, time not reported | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 7763feb9-d8d6-464e-93d1-9dddfeaef94e, published Oct 19, 2026, 8:36 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 9:25 AM EDT · Map |
| Oct 16, 2026, 9:25 AM EDT | ended, time not reported | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 884fe01c-2617-404c-bdc6-25d91881a8f6, published Oct 16, 2026, 3:28 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 9:25 AM EDT · Map |
| Oct 16, 2026, 9:20 AM EDT | ended, time not reported | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b8f17ceb-2f5c-4983-b19f-2bf55f2cca83, published Oct 19, 2026, 8:37 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 9:20 AM EDT · Map |
| Oct 16, 2026, 9:20 AM EDT | ended, time not reported | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 4aa7117a-8043-4542-9ab4-540ac003b289, published Oct 16, 2026, 3:28 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 16, 2026, 9:20 AM EDT · Map |
| Oct 11, 2026, 6:55 PM EDT | ended, time not reported | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 676a2170-d729-4770-8109-e90e77e7dbe5, published Oct 12, 2026, 9:21 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 6:55 PM EDT · Map |
| Oct 11, 2026, 6:20 PM EDT | ended, time not reported | Connecticut River, MA | SPR008 WASHBURN ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9f498d10-a7f3-49d8-91b8-4a59d9b614c4, published Oct 12, 2026, 9:17 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 6:20 PM EDT · Map |
| Oct 11, 2026, 6:10 PM EDT | ended, time not reported | Chicopee River, MA | SPR034 MAIN ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b3e45436-6c03-4743-a0ed-ec4616959650, published Oct 12, 2026, 9:19 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 6:10 PM EDT · Map |
| Oct 11, 2026, 6:05 PM EDT | ended, time not reported | Lake Massasoit, MA | SPR025 ALLEN & OAKLAND STS. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ab2a58a3-8c8a-42c0-9018-5fde1a0fa941, published Oct 12, 2026, 9:16 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 6:05 PM EDT · Map |
| Oct 11, 2026, 6:00 PM EDT | ended, time not reported | Connecticut River, MA | SPR015B UNION ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 147ca797-9adf-4294-abef-d5d0a5f21ba8, published Oct 12, 2026, 9:45 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 6:00 PM EDT · Map |
| Oct 11, 2026, 5:50 PM EDT | ended, time not reported | Chicopee River, MA | SPR035 FRONT & OAK ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 32df199c-5b11-4024-8ee6-6390cdbb5a85, published Oct 12, 2026, 9:18 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:50 PM EDT · Map |
| Oct 11, 2026, 5:40 PM EDT | ended, time not reported | Lake Massasoit, MA | SPR048 ALLEN & RIFLE STS. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0753dc67-de3d-44ea-8001-8b608a524f74, published Oct 12, 2026, 9:14 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:40 PM EDT · Map |
| Oct 11, 2026, 5:30 PM EDT | ended, time not reported | “MILL R.” (not placed) | SPR045 FORT PLEASANT AVE. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9661924b-0832-4939-a57b-2368407ed78a, published Oct 12, 2026, 9:13 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:30 PM EDT · Map |
| Oct 11, 2026, 5:30 PM EDT | ended, time not reported | Connecticut River, MA | SPR049 SPRINGFIELD ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record bf1a88ce-34c7-4f37-bb72-d89a84e33985, published Oct 12, 2026, 9:11 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:30 PM EDT · Map |
| Oct 11, 2026, 5:30 PM EDT | ended, time not reported | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d7619765-7c42-4a8f-a16d-207f87c56be9, published Oct 12, 2026, 9:09 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:30 PM EDT · Map |
| Oct 11, 2026, 5:20 PM EDT | ended, time not reported | Connecticut River, MA | SPR013 BRIDGE ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 30e6c6fb-a5da-44db-aca3-ec52fac4ae4a, published Oct 12, 2026, 9:10 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:20 PM EDT · Map |
| Oct 11, 2026, 5:20 PM EDT | ended, time not reported | Connecticut River, MA | SPR016 YORK ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3908853f-ebcc-4738-aa78-e52bf2141512, published Oct 12, 2026, 9:08 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:20 PM EDT · Map |
| Oct 11, 2026, 5:05 PM EDT | ended, time not reported | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 5abd6ae0-7142-498d-bfec-4d6a9a245e18, published Oct 12, 2026, 9:15 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:05 PM EDT · Map |
| Oct 11, 2026, 5:05 PM EDT | ended, time not reported | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 7e180495-b0f1-4b4a-9092-cf3df6ef6a1b, published Oct 12, 2026, 9:07 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:05 PM EDT · Map |
| Oct 11, 2026, 5:00 PM EDT | ended, time not reported | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 14da5d06-a714-48c2-9ce5-b0f6450aea48, published Oct 12, 2026, 9:06 AM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Oct 11, 2026, 5:00 PM EDT · Map |
| Sep 27, 2026, 4:45 PM EDT | Sep 27, 2026, 8:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | 779,000 gal | 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 | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:45 PM EDT · Map |
| Sep 27, 2026, 4:45 PM EDT | Sep 27, 2026, 8:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 84e05387-5b27-4ff9-9506-90af44ec56b0, published Sep 28, 2026, 11:59 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:45 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 4:45 PM EDT | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflow | 2,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3bad5648-bbcb-427b-8ff5-61159ead2283, published Oct 8, 2026, 1:03 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 5:20 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | 1.02 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 7495baaf-512d-4eba-a537-946454df3c63, published Oct 8, 2026, 1:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 5:45 PM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflow | 47,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record a82e52e6-b323-4574-b91f-40838198569f, published Oct 8, 2026, 12:49 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 7:20 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | 609,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9969f73c-9d68-4758-a15d-32506fd716f5, published Oct 8, 2026, 12:44 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 5:45 PM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 621d1f78-3ab6-41b4-b3ca-4e0a8894042c, published Sep 28, 2026, 11:58 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 7:20 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2897ad90-843e-4d7a-a2dd-75c9789f72e6, published Sep 28, 2026, 11:57 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 4:45 PM EDT | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 596dcb16-d263-4909-a37c-922f5b92c199, published Sep 28, 2026, 11:56 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 27, 2026, 4:30 PM EDT | Sep 27, 2026, 5:20 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 6fb3d89a-1f73-46eb-96cc-ceda14a84740, published Sep 28, 2026, 11:54 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 27, 2026, 4:30 PM EDT · Map |
| Sep 20, 2026, 7:20 PM EDT | Sep 20, 2026, 7:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | 6,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record bdfdcbe5-1e98-47a1-8329-5f11ac9df8dd, published Oct 8, 2026, 12:34 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 20, 2026, 7:20 PM EDT · Map |
| Sep 20, 2026, 7:20 PM EDT | Sep 20, 2026, 7:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 5942cf02-6d89-4e41-9bda-5267a0ffc96a, published Oct 8, 2026, 12:32 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 20, 2026, 7:20 PM EDT · Map |
| Sep 13, 2026, 10:30 AM EDT | Sep 13, 2026, 12:30 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | 4.18 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 735de05f-cc75-42be-bb75-4d282344a741, published Oct 8, 2026, 12:59 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 10:30 AM EDT · Map |
| Sep 13, 2026, 10:30 AM EDT | Sep 13, 2026, 12:30 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b2ec0d51-bf69-4724-865e-8fff3bbb116a, published Sep 14, 2026, 11:13 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 10:30 AM EDT · Map |
| Sep 13, 2026, 9:55 AM EDT | Sep 13, 2026, 12:20 PM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflow | 116,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9a424e46-3076-44e8-a6c4-374f10584fc0, published Oct 8, 2026, 12:47 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:55 AM EDT · Map |
| Sep 13, 2026, 9:55 AM EDT | Sep 13, 2026, 12:20 PM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2bdc77aa-968b-4c08-a0db-5aecf8088fd7, published Sep 14, 2026, 11:11 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:55 AM EDT · Map |
| Sep 13, 2026, 9:45 AM EDT | Sep 13, 2026, 3:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | 2.56 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 7e11d53a-ada5-4937-b529-6acfda7f9aa8, published Oct 8, 2026, 12:25 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:45 AM EDT · Map |
| Sep 13, 2026, 9:45 AM EDT | Sep 13, 2026, 3:35 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 067b7a03-81fe-45b5-8d92-3db88b5df61f, published Sep 14, 2026, 11:10 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:45 AM EDT · Map |
| Sep 13, 2026, 9:30 AM EDT | Sep 13, 2026, 3:10 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | 1.75 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b1cf534d-3e78-425c-964e-6be2ad2abcd6, published Oct 8, 2026, 12:43 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:30 AM EDT · Map |
| Sep 13, 2026, 9:30 AM EDT | Sep 13, 2026, 3:10 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 82c5a58d-51cd-47e8-aa92-88b9a20457a6, published Sep 14, 2026, 11:12 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 13, 2026, 9:30 AM EDT · Map |
| Sep 1, 2026, 8:50 AM EDT | Sep 1, 2026, 9:05 AM EDT | Lake Massasoit, MA | SPR048 ALLEN & RIFLE STS. | Combined sewer overflow | 13,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ef23b492-102c-4766-ae1f-c4ca83ec816b, published Oct 8, 2026, 1:04 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:50 AM EDT · Map |
| Sep 1, 2026, 8:50 AM EDT | Sep 1, 2026, 9:05 AM EDT | Lake Massasoit, MA | SPR048 ALLEN & RIFLE STS. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 840f8514-de8a-4249-a205-00816fc92711, published Sep 2, 2026, 8:25 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:50 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 9:15 AM EDT | Connecticut River, MA | SPR049 SPRINGFIELD ST. | Combined sewer overflow | 52,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record c0f3ef18-a079-4b54-aef1-c05e18d898b1, published Oct 8, 2026, 1:05 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 8:50 AM EDT | Chicopee River, MA | SPR037 CEDAR ST. | Combined sewer overflow | 11,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record da4b834d-19a2-4618-9c9d-776d14a5ae24, published Oct 8, 2026, 12:57 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 8:50 AM EDT | Chicopee River, MA | SPR037 CEDAR ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 56cb0f52-004b-4c57-b708-bb4a2c730b27, published Oct 8, 2026, 12:56 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 8:50 AM EDT | Chicopee River, MA | SPR036A PINEVALE & WATER ST | Combined sewer overflow | 65,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record de6fd0ae-8549-4047-acd9-77062c6b1d81, published Oct 8, 2026, 12:55 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 8:50 AM EDT | Chicopee River, MA | SPR036A PINEVALE & WATER ST | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3d474754-28d2-47a0-a5fa-75031bc5e5bd, published Oct 8, 2026, 12:54 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:40 AM EDT | Sep 1, 2026, 9:15 AM EDT | Connecticut River, MA | SPR049 SPRINGFIELD ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 98d83718-da90-41c2-9b56-a12d96cc21e2, published Sep 2, 2026, 8:25 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:40 AM EDT · Map |
| Sep 1, 2026, 8:35 AM EDT | Sep 1, 2026, 8:55 AM EDT | Chicopee River, MA | SPR035 FRONT & OAK ST. | Combined sewer overflow | 51,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9da09745-001b-4d3a-b174-3447e55a72ed, published Oct 8, 2026, 12:52 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:35 AM EDT · Map |
| Sep 1, 2026, 8:35 AM EDT | Sep 1, 2026, 9:00 AM EDT | Chicopee River, MA | SPR034 MAIN ST. | Combined sewer overflow | 42,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f5b30f10-621a-49ac-b0b9-b5f111f225ff, published Oct 8, 2026, 12:51 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:35 AM EDT · Map |
| Sep 1, 2026, 8:35 AM EDT | Sep 1, 2026, 8:55 AM EDT | Chicopee River, MA | SPR035 FRONT & OAK ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cf3eb817-b248-4b5c-a52f-55edefc936fb, published Sep 2, 2026, 8:24 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:35 AM EDT · Map |
| Sep 1, 2026, 8:35 AM EDT | Sep 1, 2026, 9:00 AM EDT | Chicopee River, MA | SPR034 MAIN ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f888da99-bfed-4c4e-bffc-b57933faa773, published Sep 2, 2026, 8:23 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 8:35 AM EDT · Map |
| Sep 1, 2026, 7:45 AM EDT | Sep 1, 2026, 8:30 AM EDT | Lake Massasoit, MA | SPR025 ALLEN & OAKLAND STS. | Combined sewer overflow | 13,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 11b03c7c-132c-4ee4-9406-d2345cff4d1b, published Oct 8, 2026, 12:50 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:45 AM EDT · Map |
| Sep 1, 2026, 7:45 AM EDT | Sep 1, 2026, 8:55 AM EDT | Connecticut River, MA | SPR013 BRIDGE ST. | Combined sewer overflow | 457,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 4cf97448-9f69-4ccc-9f58-4ff211d40b31, published Oct 8, 2026, 12:45 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:45 AM EDT · Map |
| Sep 1, 2026, 7:45 AM EDT | Sep 1, 2026, 8:30 AM EDT | Lake Massasoit, MA | SPR025 ALLEN & OAKLAND STS. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 4d2407ce-219a-4b13-a9e9-fe1928fa5e63, published Sep 2, 2026, 8:19 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:45 AM EDT · Map |
| Sep 1, 2026, 7:45 AM EDT | Sep 1, 2026, 8:55 AM EDT | Connecticut River, MA | SPR013 BRIDGE ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 45b8c4f9-a809-4426-b2a9-f2a63994e47b, published Sep 2, 2026, 8:18 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:45 AM EDT · Map |
| Sep 1, 2026, 7:40 AM EDT | Sep 1, 2026, 9:53 AM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | 5.28 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d0709d5e-9c07-4852-892c-03a1f10f4d94, published Oct 8, 2026, 12:58 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:40 AM EDT · Map |
| Sep 1, 2026, 7:40 AM EDT | Sep 1, 2026, 12:30 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | 2.29 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 52624d7e-40f9-4edf-abf8-692dc0675f5c, published Oct 8, 2026, 12:24 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:40 AM EDT · Map |
| Sep 1, 2026, 7:40 AM EDT | Sep 1, 2026, 9:53 AM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d2152914-4576-4b14-8d36-3e8092063021, published Sep 2, 2026, 8:17 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:40 AM EDT · Map |
| Sep 1, 2026, 7:40 AM EDT | Sep 1, 2026, 12:30 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2d4a7ba8-44c1-49e2-8d5d-0b456c3fc5b0, published Sep 2, 2026, 8:16 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:40 AM EDT · Map |
| Sep 1, 2026, 7:35 AM EDT | Sep 1, 2026, 11:00 AM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | 1.84 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d3ed2304-e662-4218-b127-5af87c2a95fe, published Oct 8, 2026, 12:37 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:35 AM EDT · Map |
| Sep 1, 2026, 7:35 AM EDT | Sep 1, 2026, 11:00 AM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 232871f0-e5bf-4cc0-be86-3a9bc62f992a, published Sep 2, 2026, 8:15 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:35 AM EDT · Map |
| Sep 1, 2026, 7:30 AM EDT | Sep 1, 2026, 8:50 AM EDT | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflow | 14,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 63d9c7e0-d665-48f8-ad9f-a328b53cc3b7, published Oct 8, 2026, 1:03 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:30 AM EDT · Map |
| Sep 1, 2026, 7:30 AM EDT | Sep 1, 2026, 10:20 AM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflow | 367,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1e4d306d-7ffb-4935-b83b-efdab865dd15, published Oct 8, 2026, 12:46 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:30 AM EDT · Map |
| Sep 1, 2026, 7:30 AM EDT | Sep 1, 2026, 8:50 AM EDT | “MILL R.” (not placed) | SPR046 BELMONT ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2ae47318-25c2-484c-aff0-0153d1e2a12b, published Sep 2, 2026, 8:29 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:30 AM EDT · Map |
| Sep 1, 2026, 7:30 AM EDT | Sep 1, 2026, 10:20 AM EDT | Connecticut River, MA | SPR014 ELM ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ad58bb03-6d8a-47f7-8040-940f4ffae4a0, published Sep 2, 2026, 8:22 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Sep 1, 2026, 7:30 AM EDT · Map |
| August 2026 | September 2026 | Connecticut River, MA | 049 SPRINGFIELD ST. | Combined sewer overflow | “1 discharge event(s); 0.58 hr of discharge; 52000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:049:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Lake Massasoit, MA | 048 ALLEN & RIFLE STS. | Combined sewer overflow | “1 discharge event(s); 0.25 hr of discharge; 13000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:048:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | “Mill River” (not placed) | 046 BELMONT ST. | Combined sewer overflow | “2 discharge event(s); 1.58 hr of discharge; 16000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:046:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Connecticut River, MA | 042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | “3 discharge event(s); 5.08 hr of discharge; 10475744 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:042:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Chicopee River Reservoir, MA | 037 CEDAR ST. | Combined sewer overflow | “1 discharge event(s); 0.17 hr of discharge; 11000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:037:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Chicopee River Reservoir, MA | 036 036A: PINEVALE & WATER ST | Combined sewer overflow | “1 discharge event(s); 0.17 hr of discharge; 65000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:036:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Chicopee River Reservoir, MA | 035 FRONT & OAK ST. | Combined sewer overflow | “1 discharge event(s); 0.33 hr of discharge; 51000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:035:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Chicopee River, MA | 034 MAIN ST. | Combined sewer overflow | “1 discharge event(s); 0.42 hr of discharge; 42000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:034:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Lake Massasoit, MA | 025 ALLEN & OAKLAND STS. | Combined sewer overflow | “1 discharge event(s); 0.75 hr of discharge; 13000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:025:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Connecticut River, MA | 014 ELM ST. | Combined sewer overflow | “3 discharge event(s); 6.5 hr of discharge; 530000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:014:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Connecticut River, MA | 013 BRIDGE ST. | Combined sewer overflow | “1 discharge event(s); 1.17 hr of discharge; 457000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:013:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Connecticut River, MA | 012 WORTHINGTON ST. | Combined sewer overflow | “3 discharge event(s); 11.92 hr of discharge; 4203000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:012:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| August 2026 | September 2026 | Connecticut River, MA | 010 CLINTON ST. | Combined sewer overflow | “4 discharge event(s); 14.75 hr of discharge; 5633000 gal/d (DAILY MX; monthly-total semantics unconfirmed)” | EPA ECHO Discharge Monitoring Reports (permittee-reported monthly CSO figures) via ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall), record MA0101613:010:2026-09, reported Oct 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Combined sewer overflow, Springfield Water and Sewer Commission, August 2026 · Map |
| Aug 14, 2026, 5:05 PM EDT | Aug 14, 2026, 5:35 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflow | 79,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record be4bfee3-ac73-4f8f-80d7-d432591cdc8b, published Sep 8, 2026, 7:39 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 14, 2026, 5:05 PM EDT · Map |
| Aug 14, 2026, 5:05 PM EDT | Aug 14, 2026, 5:35 PM EDT | Connecticut River, MA | SPR012 WORTHINGTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 01a03d9a-8908-4a97-9d57-18a99a3b9e82, published Aug 15, 2026, 10:39 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 14, 2026, 5:05 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:15 PM EDT | Connecticut River, MA | SPR049 SPRINGFIELD ST. | Combined sewer overflow | 33,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record a8630d3e-3f99-422f-b0ac-123445652e81, published Sep 8, 2026, 8:37 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:35 PM EDT | Lake Massasoit, MA | SPR048 ALLEN & RIFLE STS. | Combined sewer overflow | 29,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 06b49473-d59d-48da-8320-7c2da62ca839, published Sep 8, 2026, 8:36 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:55 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflow | 3.52 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ece7a5ff-d71e-45b3-8d5b-41c3bbbcb7be, published Sep 8, 2026, 8:30 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:40 PM EDT | Connecticut River, MA | SPR016 YORK ST. | Combined sewer overflow | 1.58 million gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0b5f8050-e87b-4fe3-a19a-40a45a672f51, published Sep 8, 2026, 7:48 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:15 PM EDT | Connecticut River, MA | SPR015B UNION ST. | Combined sewer overflow | 3,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b81d22f1-1424-4ee5-b6df-8f63861fda78, published Sep 8, 2026, 7:45 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 7:25 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflow | 869,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2ec8c4fb-f164-45e3-bb89-eab32792b1f6, published Sep 8, 2026, 7:35 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:15 PM EDT | Connecticut River, MA | SPR015B UNION ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 5fcbf03a-7ee0-4424-b62f-e72a7c60707c, published Aug 10, 2026, 10:13 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:35 PM EDT | Lake Massasoit, MA | SPR048 ALLEN & RIFLE STS. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 63a4ced3-5288-4cff-ad58-595ecee9217a, published Aug 10, 2026, 10:13 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:15 PM EDT | Connecticut River, MA | SPR049 SPRINGFIELD ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d8ce3a48-2a95-4618-bbbd-608b005efdeb, published Aug 10, 2026, 10:11 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:40 PM EDT | Connecticut River, MA | SPR016 YORK ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b51e6491-3d50-452a-81ac-c45459f065c8, published Aug 10, 2026, 10:10 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 6:55 PM EDT | Connecticut River, MA | SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0abd4931-4a98-4f82-b1f6-47c3a4bf4bab, published Aug 10, 2026, 10:09 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 6:00 PM EDT | Aug 8, 2026, 7:25 PM EDT | Connecticut River, MA | SPR010 CLINTON ST. | Combined sewer overflowrevised | not reported | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d1cf4d05-2cf7-4387-ac7b-c5c9b6686ccc, published Aug 10, 2026, 10:08 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 6:00 PM EDT · Map |
| Aug 8, 2026, 5:55 PM EDT | Aug 8, 2026, 6:20 PM EDT | “MILL R.” (not placed) | SPR045 FORT PLEASANT AVE. | Combined sewer overflow | 373,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d0d5b152-bf8d-417e-8f41-99cbaa62d59b, published Sep 8, 2026, 8:32 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 5:55 PM EDT · Map |
| Aug 8, 2026, 5:55 PM EDT | Aug 8, 2026, 6:15 PM EDT | Connecticut River, MA | SPR018 LONGHILL ST. | Combined sewer overflow | 33,000 gal | SPRINGFIELD WATER & SEWER COMMISSION (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3e707e22-cd0b-499b-9f9c-7ab1aa48485a, published Sep 8, 2026, 8:21 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Combined sewer overflow, SPRINGFIELD WATER & SEWER COMMISSION, Aug 8, 2026, 5:55 PM EDT · Map |
Showing the newest 100 events of 3,350 events. See them all with filters.
History
- Discharge events, last 12 months229Dec 2025 to Nov 2026
- Days with a discharge, last 12 months38Dec 2025 to Nov 2026
- Hours under advisory, last 12 months1,551Dec 2025 to Nov 2026; on this discharger's reports
- 2026 season under advisory25%May to October; 1,092 h
Discharge events per month
1,556 events, Jan 2022 to Nov 2026. Counted from 1,533 verified or annual reports, 23 public notices.
- Combined sewer overflow
- Sanitary sewer overflow
- Bypass, blended or other
- No source
- Partly covered or sparse source
No source covers 2022-01 to 2022-05. MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices. Some dischargers here report only monthly or yearly totals; those are shown under reported totals, not counted here.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Month | Combined sewer overflow | Sanitary sewer overflow | Bypass, blended or other | Total | Counted from | Coverage |
|---|---|---|---|---|---|---|
| Jan 2022 | 0 | 0 | 0 | 0 | No source | |
| Feb 2022 | 0 | 0 | 0 | 0 | No source | |
| Mar 2022 | 0 | 0 | 0 | 0 | No source | |
| Apr 2022 | 0 | 0 | 0 | 0 | No source | |
| May 2022 | 0 | 0 | 0 | 0 | No source | |
| Jun 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2022 | 68 | 0 | 0 | 68 | Verified or annual reports | |
| Aug 2022 | 26 | 0 | 0 | 26 | Verified or annual reports | |
| Sep 2022 | 43 | 0 | 2 | 45 | Verified or annual reports | |
| Oct 2022 | 25 | 0 | 0 | 25 | Verified or annual reports | |
| Nov 2022 | 35 | 0 | 0 | 35 | Verified or annual reports | |
| Dec 2022 | 19 | 0 | 0 | 19 | Verified or annual reports | |
| Jan 2023 | 39 | 0 | 0 | 39 | Verified or annual reports | |
| Feb 2023 | 9 | 0 | 0 | 9 | Verified or annual reports | |
| Mar 2023 | 8 | 1 | 0 | 9 | Verified or annual reports | |
| Apr 2023 | 45 | 0 | 1 | 46 | Verified or annual reports | |
| May 2023 | 25 | 0 | 0 | 25 | Verified or annual reports | |
| Jun 2023 | 54 | 0 | 0 | 54 | Verified or annual reports | |
| Jul 2023 | 143 | 0 | 0 | 143 | Verified or annual reports | |
| Aug 2023 | 46 | 0 | 0 | 46 | Verified or annual reports | |
| Sep 2023 | 72 | 1 | 0 | 73 | Verified or annual reports | |
| Oct 2023 | 19 | 1 | 0 | 20 | Verified or annual reports | |
| Nov 2023 | 11 | 0 | 0 | 11 | Verified or annual reports | |
| Dec 2023 | 50 | 1 | 0 | 51 | Verified or annual reports | |
| Jan 2024 | 35 | 0 | 0 | 35 | Verified or annual reports | |
| Feb 2024 | 7 | 0 | 0 | 7 | Verified or annual reports | |
| Mar 2024 | 52 | 0 | 0 | 52 | Verified or annual reports | |
| Apr 2024 | 20 | 0 | 0 | 20 | Verified or annual reports | |
| May 2024 | 27 | 0 | 0 | 27 | Verified or annual reports | |
| Jun 2024 | 66 | 0 | 0 | 66 | Verified or annual reports | |
| Jul 2024 | 12 | 1 | 0 | 13 | Verified or annual reports | |
| Aug 2024 | 26 | 0 | 0 | 26 | Verified or annual reports | |
| Sep 2024 | 5 | 0 | 0 | 5 | Verified or annual reports | |
| Oct 2024 | 0 | 0 | 0 | 0 | ||
| Nov 2024 | 5 | 0 | 0 | 5 | Verified or annual reports | |
| Dec 2024 | 16 | 0 | 0 | 16 | Verified or annual reports | |
| Jan 2025 | 17 | 0 | 0 | 17 | Verified or annual reports | |
| Feb 2025 | 2 | 0 | 0 | 2 | Verified or annual reports | |
| Mar 2025 | 46 | 0 | 0 | 46 | Verified or annual reports | |
| Apr 2025 | 10 | 0 | 0 | 10 | Verified or annual reports | |
| May 2025 | 60 | 0 | 0 | 60 | Verified or annual reports | |
| Jun 2025 | 13 | 0 | 0 | 13 | Verified or annual reports | |
| Jul 2025 | 61 | 0 | 0 | 61 | Verified or annual reports | |
| Aug 2025 | 7 | 0 | 0 | 7 | Verified or annual reports | |
| Sep 2025 | 45 | 0 | 0 | 45 | Verified or annual reports | |
| Oct 2025 | 44 | 0 | 0 | 44 | Verified or annual reports | |
| Nov 2025 | 6 | 0 | 0 | 6 | Verified or annual reports | |
| Dec 2025 | 18 | 0 | 0 | 18 | Verified or annual reports | |
| Jan 2026 | 0 | 0 | 0 | 0 | ||
| Feb 2026 | 0 | 0 | 0 | 0 | ||
| Mar 2026 | 19 | 0 | 0 | 19 | Verified or annual reports | |
| Apr 2026 | 20 | 0 | 0 | 20 | Verified or annual reports | |
| May 2026 | 6 | 0 | 0 | 6 | Verified or annual reports | |
| Jun 2026 | 34 | 0 | 0 | 34 | Verified or annual reports | |
| Jul 2026 | 50 | 0 | 0 | 50 | Verified or annual reports | |
| Aug 2026 | 35 | 1 | 0 | 36 | Verified or annual reports | |
| Sep 2026 | 23 | 0 | 0 | 23 | Verified or annual reports | |
| Oct 2026 | 23 | 0 | 0 | 23 | Public notices (no report yet) | |
| Nov 2026 | 0 | 0 | 0 | 0 |
Hours under advisory per month
Hours this discharger's reports put a water under an advisory, by the map's red rules.
- Advisory in effect
- No source
- Partly covered or sparse source
No source covers 2022-01 to 2022-05. 23 discharge events have no reported end and no ongoing status; under the status rules they set caution, not an advisory, and add no hours here. Official beach and cyanobacteria advisories are counted on water pages only. MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Month | Hours under advisory | From discharge windows | Hours in month | Coverage |
|---|---|---|---|---|
| Jan 2022 | 0 | 0 | 744 | No source |
| Feb 2022 | 0 | 0 | 672 | No source |
| Mar 2022 | 0 | 0 | 744 | No source |
| Apr 2022 | 0 | 0 | 720 | No source |
| May 2022 | 0 | 0 | 744 | No source |
| Jun 2022 | 0 | 0 | 720 | Partly covered or sparse source |
| Jul 2022 | 275 | 275 | 744 | |
| Aug 2022 | 302 | 302 | 744 | |
| Sep 2022 | 241 | 241 | 720 | |
| Oct 2022 | 294 | 294 | 744 | |
| Nov 2022 | 195 | 195 | 720 | |
| Dec 2022 | 272 | 272 | 744 | |
| Jan 2023 | 447 | 447 | 744 | |
| Feb 2023 | 102 | 102 | 672 | |
| Mar 2023 | 257 | 257 | 744 | |
| Apr 2023 | 219 | 219 | 720 | |
| May 2023 | 203 | 203 | 744 | |
| Jun 2023 | 251 | 251 | 720 | |
| Jul 2023 | 545 | 545 | 744 | |
| Aug 2023 | 314 | 314 | 744 | |
| Sep 2023 | 284 | 284 | 720 | |
| Oct 2023 | 225 | 225 | 744 | |
| Nov 2023 | 190 | 190 | 720 | |
| Dec 2023 | 278 | 278 | 744 | |
| Jan 2024 | 254 | 254 | 744 | |
| Feb 2024 | 50 | 50 | 696 | |
| Mar 2024 | 370 | 370 | 744 | |
| Apr 2024 | 270 | 270 | 720 | |
| May 2024 | 306 | 306 | 744 | |
| Jun 2024 | 302 | 302 | 720 | |
| Jul 2024 | 261 | 261 | 744 | |
| Aug 2024 | 261 | 261 | 744 | |
| Sep 2024 | 99 | 99 | 720 | |
| Oct 2024 | 0 | 0 | 744 | |
| Nov 2024 | 101 | 101 | 720 | |
| Dec 2024 | 195 | 195 | 744 | |
| Jan 2025 | 55 | 55 | 744 | |
| Feb 2025 | 107 | 107 | 672 | |
| Mar 2025 | 236 | 236 | 744 | |
| Apr 2025 | 261 | 261 | 720 | |
| May 2025 | 276 | 276 | 744 | |
| Jun 2025 | 204 | 204 | 720 | |
| Jul 2025 | 297 | 297 | 744 | |
| Aug 2025 | 102 | 102 | 744 | |
| Sep 2025 | 190 | 190 | 720 | |
| Oct 2025 | 226 | 226 | 744 | |
| Nov 2025 | 125 | 125 | 720 | |
| Dec 2025 | 112 | 112 | 744 | |
| Jan 2026 | 0 | 0 | 744 | |
| Feb 2026 | 0 | 0 | 672 | |
| Mar 2026 | 216 | 216 | 744 | |
| Apr 2026 | 131 | 131 | 720 | |
| May 2026 | 169 | 169 | 744 | |
| Jun 2026 | 260 | 260 | 720 | |
| Jul 2026 | 301 | 301 | 744 | |
| Aug 2026 | 155 | 155 | 744 | |
| Sep 2026 | 207 | 207 | 720 | |
| Oct 2026 | 0 | 0 | 744 | |
| Nov 2026 | 0 | 0 | 32 |
Days with a discharge per month
A day counts when any counted discharge was under way on it (start to reported end, local time); an event with no end counts its start day.
- No source
- Partly covered or sparse source
No source covers 2022-01 to 2022-05.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Month | Days with a discharge | Coverage |
|---|---|---|
| Jan 2022 | 0 | No source |
| Feb 2022 | 0 | No source |
| Mar 2022 | 0 | No source |
| Apr 2022 | 0 | No source |
| May 2022 | 0 | No source |
| Jun 2022 | 0 | Partly covered or sparse source |
| Jul 2022 | 8 | |
| Aug 2022 | 8 | |
| Sep 2022 | 5 | |
| Oct 2022 | 7 | |
| Nov 2022 | 5 | |
| Dec 2022 | 6 | |
| Jan 2023 | 12 | |
| Feb 2023 | 2 | |
| Mar 2023 | 6 | |
| Apr 2023 | 5 | |
| May 2023 | 4 | |
| Jun 2023 | 5 | |
| Jul 2023 | 12 | |
| Aug 2023 | 7 | |
| Sep 2023 | 9 | |
| Oct 2023 | 5 | |
| Nov 2023 | 3 | |
| Dec 2023 | 7 | |
| Jan 2024 | 7 | |
| Feb 2024 | 2 | |
| Mar 2024 | 9 | |
| Apr 2024 | 7 | |
| May 2024 | 6 | |
| Jun 2024 | 10 | |
| Jul 2024 | 5 | |
| Aug 2024 | 6 | |
| Sep 2024 | 2 | |
| Oct 2024 | 0 | |
| Nov 2024 | 2 | |
| Dec 2024 | 4 | |
| Jan 2025 | 2 | |
| Feb 2025 | 3 | |
| Mar 2025 | 6 | |
| Apr 2025 | 5 | |
| May 2025 | 9 | |
| Jun 2025 | 4 | |
| Jul 2025 | 8 | |
| Aug 2025 | 1 | |
| Sep 2025 | 4 | |
| Oct 2025 | 6 | |
| Nov 2025 | 3 | |
| Dec 2025 | 2 | |
| Jan 2026 | 0 | |
| Feb 2026 | 0 | |
| Mar 2026 | 6 | |
| Apr 2026 | 3 | |
| May 2026 | 4 | |
| Jun 2026 | 8 | |
| Jul 2026 | 6 | |
| Aug 2026 | 3 | |
| Sep 2026 | 4 | |
| Oct 2026 | 2 | |
| Nov 2026 | 0 |
Reported volume per year
Gallons, summed from the 1,533 events that gave a number (23 did not).
- Partly covered or sparse source
23 of 1,556 events gave no volume as a number; only numbers are summed.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Year | Gallons | Events with a number | Events without | Coverage |
|---|---|---|---|---|
| 2022 | 218,356,597 | 218 | 0 | Partly covered or sparse source |
| 2023 | 489,819,564 | 526 | 0 | |
| 2024 | 292,265,706 | 272 | 0 | |
| 2025 | 482,820,124 | 329 | 0 | |
| 2026 | 281,914,349 | 188 | 23 |
Hours under advisory per year
Hours under advisory each year; 2026 to date.
- Advisory in effect
- Partly covered or sparse source
23 discharge events have no reported end and no ongoing status; under the status rules they set caution, not an advisory, and add no hours here. Official beach and cyanobacteria advisories are counted on water pages only.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Year | Hours under advisory | Share of the year | Coverage |
|---|---|---|---|
| 2022 | 1,580 | 18.0% | Partly covered or sparse source |
| 2023 | 3,314 | 37.8% | |
| 2024 | 2,468 | 28.1% | |
| 2025 | 2,191 | 25.0% | |
| 2026 | 1,439 | 19.6% |
Discharge events by calendar month, all years
Every counted discharge event, by the calendar month it began.
Months are summed over every year a source covers; the table gives the number of years behind each month.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Month | Events | Years of records |
|---|---|---|
| Jan | 91 | 4 |
| Feb | 18 | 4 |
| Mar | 126 | 4 |
| Apr | 96 | 4 |
| May | 118 | 4 |
| Jun | 167 | 5 |
| Jul | 335 | 5 |
| Aug | 141 | 5 |
| Sep | 191 | 5 |
| Oct | 112 | 5 |
| Nov | 57 | 5 |
| Dec | 104 | 4 |
Discharge events by outfall
The 10 outfalls with the most events of 25, all years.
MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices.
Source: MassDEP sewage notification portal. Covered 2022-06-30 to 2026-11-02.
Show table
| Outfall | Events |
|---|---|
| SPR012 WORTHINGTON ST. | 186 |
| SPR010 CLINTON ST. | 163 |
| SPR014 ELM ST. | 152 |
| SPR049 SPRINGFIELD ST. | 111 |
| SPR042 SPRINGFIELD WWTP BYPASS AT BONDI'S ISLAND | 106 |
| SPR013 BRIDGE ST. | 95 |
| SPR046 BELMONT ST. | 88 |
| SPR016 YORK ST. | 75 |
| SPR045 FORT PLEASANT AVE. | 64 |
| SPR025 ALLEN & OAKLAND STS. | 62 |
| Other outfalls (15) | 448 |
| Outfall not stated | 6 |
Reported monthly totals: EPA ECHO discharge monitoring reports (monthly CSO totals)
Monthly totals each permittee files with EPA per outfall (discharge monitoring reports). They describe the same discharges the state notices report, so they are shown here and never added to the event counts. A month with no row counts as zero inside the span. Source: EPA ECHO discharge monitoring reports (monthly CSO totals). Covered 2024-01-01 to 2026-09-30.
Discharge events reported
Events per month.
Show table
| Month | Discharge events reported |
|---|---|
| Jan 2024 | 47 |
| Feb 2024 | 7 |
| Mar 2024 | 47 |
| Apr 2024 | 17 |
| May 2024 | 26 |
| Jun 2024 | 47 |
| Jul 2024 | 10 |
| Aug 2024 | 26 |
| Sep 2024 | 6 |
| Oct 2024 | 0 |
| Nov 2024 | 5 |
| Dec 2024 | 15 |
| Jan 2025 | 17 |
| Feb 2025 | 2 |
| Mar 2025 | 43 |
| Apr 2025 | 10 |
| May 2025 | 65 |
| Jun 2025 | 13 |
| Jul 2025 | 59 |
| Aug 2025 | 7 |
| Sep 2025 | 47 |
| Oct 2025 | 44 |
| Nov 2025 | 6 |
| Dec 2025 | 18 |
| Jan 2026 | 0 |
| Feb 2026 | 0 |
| Mar 2026 | 18 |
| Apr 2026 | 20 |
| May 2026 | 6 |
| Jun 2026 | 34 |
| Jul 2026 | 64 |
| Aug 2026 | 35 |
| Sep 2026 | 23 |
Hours of discharge reported
Hours per month.
Show table
| Month | Hours of discharge reported |
|---|---|
| Jan 2024 | 115 h |
| Feb 2024 | 9 h |
| Mar 2024 | 156 h |
| Apr 2024 | 38 h |
| May 2024 | 39 h |
| Jun 2024 | 51 h |
| Jul 2024 | 9 h |
| Aug 2024 | 33 h |
| Sep 2024 | 5 h |
| Oct 2024 | 0 h |
| Nov 2024 | 11 h |
| Dec 2024 | 31 h |
| Jan 2025 | 25 h |
| Feb 2025 | 10 h |
| Mar 2025 | 70 h |
| Apr 2025 | 18 h |
| May 2025 | 117 h |
| Jun 2025 | 15 h |
| Jul 2025 | 95 h |
| Aug 2025 | 18 h |
| Sep 2025 | 57 h |
| Oct 2025 | 160 h |
| Nov 2025 | 11 h |
| Dec 2025 | 31 h |
| Jan 2026 | 0 h |
| Feb 2026 | 0 h |
| Mar 2026 | 36 h |
| Apr 2026 | 19 h |
| May 2026 | 7 h |
| Jun 2026 | 21 h |
| Jul 2026 | 88 h |
| Aug 2026 | 89 h |
| Sep 2026 | 44 h |
How these charts are counted
Discharge events are counted once: where a source publishes both public notices and verified reports (MassDEP, Vermont DEC), a discharger's month with any verified report counts its verified reports only, and other months count notices. Revisions are folded into the record they revise, and EPA copies of a state report are not counted twice. Monthly and yearly totals (Maine DEP, EPA discharge monitoring reports, Portsmouth) are shown on their own and never added to the event counts. Hours under advisory follow the map's red rules. A muted band marks periods no source covers: a gap there is missing data, not a quiet month.
- MassDEP sewage notification portal: 2022-06-30 to now