Massachusetts / Waters /
Massachusetts Bay
Bay in Massachusetts · near Beverly, Gloucester, Hull, Lynn, Marblehead
Status now
Unresolved: no end reported
A discharge here was reported but its end never was. Sources often skip the "ceased" notice, so after the first week the water is shown hatched yellow until 30 days have passed, and the event stays flagged on its pages after that.
Why this colour: Unresolved: no end reported: no end reported. Rationale: From day 7 to day 30 the reach or water is shown hatched yellow 'unresolved: no end reported', listed under active discharges with that label. (source: data/rules.json) How long a water stays coloured, and why
Blended discharge of Oct 11 21:54: unresolved, no end reported · MASSACHUSETTS WATER RESOURCES AUTHORITY · tidal or estuary: movement not modeled · since Oct 26, 2026, 12:14 PM EDT
Source: MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cc473526-3969-4bab-8435-536ad07c817d, published Oct 12, 2026, 12:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
As of Nov 2, 2026, 6:56 AM EST.
Events behind the colour
- Unresolved: no end reported Blended (partially treated) discharge · MASSACHUSETTS WATER RESOURCES AUTHORITY · T01 · Oct 11, 2026, 9:54 PM EDT to ended, time not reported · not reported · Unresolved: no end reported, until Nov 11, 2026, 11:14 AM EST
Source: MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cc473526-3969-4bab-8435-536ad07c817d, published Oct 12, 2026, 12:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
- Unresolved: no end reported Blended (partially treated) discharge · MASSACHUSETTS WATER RESOURCES AUTHORITY · T01 · Oct 11, 2026, 9:27 PM EDT to ended, time not reported · not reported · Unresolved: no end reported, until Nov 11, 2026, 11:10 AM EST
Source: MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 291e1a76-2ed7-4a95-b9c2-566a5fcb7f22, published Oct 12, 2026, 12:10 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
What the authorities advise
“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.”
Source: MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cc473526-3969-4bab-8435-536ad07c817d, published Oct 12, 2026, 12:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Map
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.
Outfalls are small brown dots.
The last 90 days
- Unresolved: no end reported: Oct 26, 2026, 1:00 PM EDT to now · set by event 1, event 2
- Caution: Oct 14, 2026, 8:00 AM EDT to Oct 26, 2026, 1:00 PM EDT · set by event 1, event 2, event 3, event 4
- Advisory in effect: Oct 12, 2026, 2:00 AM EDT to Oct 14, 2026, 8:00 AM EDT · set by event 1, event 2
- Caution: Oct 11, 2026, 9:00 PM EDT to Oct 12, 2026, 2:00 AM EDT · set by event 1, event 2
- Caution: Sep 30, 2026, 12:00 PM EDT to Oct 1, 2026, 12:00 PM EDT · set by event 1, event 2
- Advisory in effect: Sep 27, 2026, 8:00 AM EDT to Sep 30, 2026, 12:00 PM EDT · set by event 1, event 2
Source: hourly statuses computed by DirtyWaterWatch (pipeline build/status.py) from the events linked above and the rules on the methods page; history as of 2026-11-02 11:56 UTC.
Discharges over the years
- Discharge events, last 12 months12Dec 2025 to Nov 2026
- Days with a discharge, last 12 months9Dec 2025 to Nov 2026
- Hours under advisory, last 12 months300Dec 2025 to Nov 2026
- 2026 season under advisory5.3%May to October; 236 h
Discharge events per month
46 events, Jan 2022 to Nov 2026. Counted from 40 verified or annual reports, 3 public notices, 3 other source reports.
- Combined sewer overflow
- Sanitary sewer overflow
- Bypass, blended or other
- No source
- Partly covered or sparse source
No source covers 2022-01 to 2022-04. EPA ECHO sewer overflow records are sparse (only what permittees file with EPA). MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 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 | Partly covered or sparse source | |
| Jun 2022 | 0 | 0 | 0 | 0 | Partly covered or sparse source | |
| Jul 2022 | 0 | 0 | 0 | 0 | ||
| Aug 2022 | 0 | 0 | 0 | 0 | ||
| Sep 2022 | 0 | 0 | 0 | 0 | ||
| Oct 2022 | 0 | 0 | 0 | 0 | ||
| Nov 2022 | 0 | 0 | 0 | 0 | ||
| Dec 2022 | 0 | 1 | 0 | 1 | Verified or annual reports | |
| Jan 2023 | 0 | 1 | 0 | 1 | Verified or annual reports | |
| Feb 2023 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Mar 2023 | 0 | 0 | 0 | 0 | ||
| Apr 2023 | 0 | 0 | 0 | 0 | ||
| May 2023 | 0 | 0 | 0 | 0 | ||
| Jun 2023 | 0 | 0 | 0 | 0 | ||
| Jul 2023 | 0 | 0 | 0 | 0 | ||
| Aug 2023 | 0 | 0 | 0 | 0 | ||
| Sep 2023 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Oct 2023 | 0 | 0 | 0 | 0 | ||
| Nov 2023 | 0 | 0 | 0 | 0 | ||
| Dec 2023 | 0 | 0 | 0 | 0 | ||
| Jan 2024 | 0 | 4 | 0 | 4 | Reports and notices | |
| Feb 2024 | 0 | 0 | 0 | 0 | ||
| Mar 2024 | 0 | 1 | 0 | 1 | Verified or annual reports | |
| Apr 2024 | 0 | 2 | 3 | 5 | Verified or annual reports | |
| May 2024 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Jun 2024 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Jul 2024 | 0 | 0 | 0 | 0 | ||
| Aug 2024 | 0 | 0 | 0 | 0 | ||
| Sep 2024 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Oct 2024 | 0 | 0 | 0 | 0 | ||
| Nov 2024 | 0 | 0 | 0 | 0 | ||
| Dec 2024 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Jan 2025 | 0 | 0 | 0 | 0 | ||
| Feb 2025 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Mar 2025 | 0 | 0 | 3 | 3 | Verified or annual reports | |
| Apr 2025 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| May 2025 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Jun 2025 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Jul 2025 | 0 | 0 | 1 | 1 | Verified or annual reports | |
| Aug 2025 | 0 | 0 | 0 | 0 | ||
| Sep 2025 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Oct 2025 | 0 | 0 | 3 | 3 | Verified or annual reports | |
| Nov 2025 | 0 | 0 | 0 | 0 | ||
| Dec 2025 | 0 | 0 | 0 | 0 | ||
| Jan 2026 | 0 | 0 | 0 | 0 | ||
| Feb 2026 | 0 | 0 | 0 | 0 | ||
| Mar 2026 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Apr 2026 | 0 | 0 | 0 | 0 | ||
| May 2026 | 0 | 0 | 0 | 0 | ||
| Jun 2026 | 0 | 0 | 0 | 0 | ||
| Jul 2026 | 0 | 0 | 4 | 4 | Verified or annual reports | |
| Aug 2026 | 0 | 0 | 0 | 0 | ||
| Sep 2026 | 0 | 0 | 2 | 2 | Verified or annual reports | |
| Oct 2026 | 0 | 0 | 4 | 4 | Public notices (no report yet) | |
| Nov 2026 | 0 | 0 | 0 | 0 |
Hours under advisory per month
Hours this water was 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 2022-04. 3 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. EPA ECHO sewer overflow records are sparse (only what permittees file with EPA). MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 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 | Partly covered or sparse source |
| Jun 2022 | 0 | 0 | 720 | Partly covered or sparse source |
| Jul 2022 | 0 | 0 | 744 | |
| Aug 2022 | 0 | 0 | 744 | |
| Sep 2022 | 0 | 0 | 720 | |
| Oct 2022 | 0 | 0 | 744 | |
| Nov 2022 | 0 | 0 | 720 | |
| Dec 2022 | 51 | 51 | 744 | |
| Jan 2023 | 55 | 55 | 744 | |
| Feb 2023 | 63 | 63 | 672 | |
| Mar 2023 | 0 | 0 | 744 | |
| Apr 2023 | 0 | 0 | 720 | |
| May 2023 | 0 | 0 | 744 | |
| Jun 2023 | 0 | 0 | 720 | |
| Jul 2023 | 0 | 0 | 744 | |
| Aug 2023 | 0 | 0 | 744 | |
| Sep 2023 | 58 | 58 | 720 | |
| Oct 2023 | 15 | 15 | 744 | |
| Nov 2023 | 0 | 0 | 720 | |
| Dec 2023 | 0 | 0 | 744 | |
| Jan 2024 | 110 | 110 | 744 | |
| Feb 2024 | 0 | 0 | 696 | |
| Mar 2024 | 58 | 58 | 744 | |
| Apr 2024 | 154 | 154 | 720 | |
| May 2024 | 39 | 39 | 744 | |
| Jun 2024 | 66 | 66 | 720 | |
| Jul 2024 | 0 | 0 | 744 | |
| Aug 2024 | 0 | 0 | 744 | |
| Sep 2024 | 48 | 48 | 720 | |
| Oct 2024 | 0 | 0 | 744 | |
| Nov 2024 | 0 | 0 | 720 | |
| Dec 2024 | 100 | 100 | 744 | |
| Jan 2025 | 10 | 10 | 744 | |
| Feb 2025 | 54 | 54 | 672 | |
| Mar 2025 | 154 | 154 | 744 | |
| Apr 2025 | 49 | 49 | 720 | |
| May 2025 | 125 | 125 | 744 | |
| Jun 2025 | 51 | 51 | 720 | |
| Jul 2025 | 52 | 52 | 744 | |
| Aug 2025 | 0 | 0 | 744 | |
| Sep 2025 | 99 | 99 | 720 | |
| Oct 2025 | 154 | 154 | 744 | |
| Nov 2025 | 0 | 0 | 720 | |
| Dec 2025 | 0 | 0 | 744 | |
| Jan 2026 | 0 | 0 | 744 | |
| Feb 2026 | 0 | 0 | 672 | |
| Mar 2026 | 65 | 65 | 744 | |
| Apr 2026 | 0 | 0 | 720 | |
| May 2026 | 0 | 0 | 744 | |
| Jun 2026 | 0 | 0 | 720 | |
| Jul 2026 | 108 | 108 | 744 | |
| Aug 2026 | 0 | 0 | 744 | |
| Sep 2026 | 75 | 75 | 720 | |
| Oct 2026 | 53 | 53 | 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 2022-04.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 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 | Partly covered or sparse source |
| Jun 2022 | 0 | Partly covered or sparse source |
| Jul 2022 | 0 | |
| Aug 2022 | 0 | |
| Sep 2022 | 0 | |
| Oct 2022 | 0 | |
| Nov 2022 | 0 | |
| Dec 2022 | 1 | |
| Jan 2023 | 1 | |
| Feb 2023 | 2 | |
| Mar 2023 | 0 | |
| Apr 2023 | 0 | |
| May 2023 | 0 | |
| Jun 2023 | 0 | |
| Jul 2023 | 0 | |
| Aug 2023 | 0 | |
| Sep 2023 | 2 | |
| Oct 2023 | 0 | |
| Nov 2023 | 0 | |
| Dec 2023 | 0 | |
| Jan 2024 | 2 | |
| Feb 2024 | 0 | |
| Mar 2024 | 1 | |
| Apr 2024 | 5 | |
| May 2024 | 1 | |
| Jun 2024 | 2 | |
| Jul 2024 | 0 | |
| Aug 2024 | 0 | |
| Sep 2024 | 1 | |
| Oct 2024 | 0 | |
| Nov 2024 | 0 | |
| Dec 2024 | 3 | |
| Jan 2025 | 0 | |
| Feb 2025 | 1 | |
| Mar 2025 | 3 | |
| Apr 2025 | 1 | |
| May 2025 | 3 | |
| Jun 2025 | 1 | |
| Jul 2025 | 1 | |
| Aug 2025 | 0 | |
| Sep 2025 | 2 | |
| Oct 2025 | 3 | |
| Nov 2025 | 0 | |
| Dec 2025 | 0 | |
| Jan 2026 | 0 | |
| Feb 2026 | 0 | |
| Mar 2026 | 2 | |
| Apr 2026 | 0 | |
| May 2026 | 0 | |
| Jun 2026 | 0 | |
| Jul 2026 | 3 | |
| Aug 2026 | 0 | |
| Sep 2026 | 2 | |
| Oct 2026 | 2 | |
| Nov 2026 | 0 |
Reported volume per year
Gallons, summed from the 43 events that gave a number (3 did not).
- Partly covered or sparse source
3 of 46 events gave no volume as a number; only numbers are summed.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 to 2026-11-02.
Show table
| Year | Gallons | Events with a number | Events without | Coverage |
|---|---|---|---|---|
| 2022 | 28,000 | 1 | 0 | Partly covered or sparse source |
| 2023 | 1,041,908 | 3 | 0 | |
| 2024 | 562,971,700 | 14 | 1 | |
| 2025 | 352,800,000 | 15 | 0 | |
| 2026 | 172,750,000 | 10 | 2 |
Hours under advisory per year
Hours under advisory each year; 2026 to date.
- Advisory in effect
- Partly covered or sparse source
3 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.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 to 2026-11-02.
Show table
| Year | Hours under advisory | Share of the year | Coverage |
|---|---|---|---|
| 2022 | 51 | 0.6% | Partly covered or sparse source |
| 2023 | 190 | 2.2% | |
| 2024 | 574 | 6.5% | |
| 2025 | 748 | 8.5% | |
| 2026 | 300 | 4.1% |
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.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 to 2026-11-02.
Show table
| Month | Events | Years of records |
|---|---|---|
| Jan | 5 | 4 |
| Feb | 3 | 4 |
| Mar | 6 | 4 |
| Apr | 6 | 4 |
| May | 3 | 4 |
| Jun | 2 | 5 |
| Jul | 5 | 5 |
| Aug | 0 | 5 |
| Sep | 6 | 5 |
| Oct | 7 | 5 |
| Nov | 0 | 5 |
| Dec | 3 | 4 |
Discharge events by outfall
The 4 outfalls with the most events of 4, all years.
EPA ECHO sewer overflow records are sparse (only what permittees file with EPA). MassDEP portal records begin 2022-06-30. Verified Data Reports arrive after the month ends, so the latest months count public notices.
Sources: EPA ECHO sewer overflow events; MassDEP sewage notification portal. Covered 2022-05-03 to 2026-11-02.
Show table
| Outfall | Discharger | Events |
|---|---|---|
| T01 | MASSACHUSETTS WATER RESOURCES AUTHORITY | 31 |
| 001 | HULL WASTEWATER TREATMENT PLANT | 1 |
| 001 | SOUTH ESSEX SEWERAGE DISTRICT | 1 |
| 001 | CITY OF GLOUCESTER | 1 |
| Outfall not stated | 12 |
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.
- EPA ECHO sewer overflow events: 2022-05-03 to now (sparse)
- MassDEP sewage notification portal: 2022-06-30 to now
Every event on Massachusetts Bay
| Start | End | Discharger | Outfall | Type | Volume | Source | Links |
|---|---|---|---|---|---|---|---|
| Oct 12, 2026, 2:54 AM EDT | Oct 12, 2026, 7:36 AM EDT | Massachusetts Water Resources Authority | not stated | Bypass | 21.55 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:5:2, reported Oct 12, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Oct 12, 2026, 2:54 AM EDT · Map |
| Oct 12, 2026, 2:27 AM EDT | Oct 12, 2026, 2:42 AM EDT | Massachusetts Water Resources Authority | not stated | Bypass | 560,000 gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:5:1, reported Oct 12, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Oct 12, 2026, 2:27 AM EDT · Map |
| Oct 11, 2026, 9:54 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cc473526-3969-4bab-8435-536ad07c817d, published Oct 12, 2026, 12:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Oct 11, 2026, 9:54 PM EDT · Map |
| Oct 11, 2026, 9:27 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 291e1a76-2ed7-4a95-b9c2-566a5fcb7f22, published Oct 12, 2026, 12:10 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Oct 11, 2026, 9:27 PM EDT · Map |
| Sep 28, 2026, 3:02 PM EDT | Sep 28, 2026, 4:21 PM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 1.48 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:4:2, reported Sep 28, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Sep 28, 2026, 3:02 PM EDT · Map |
| Sep 28, 2026, 10:02 AM EDT | Sep 28, 2026, 11:21 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 1.48 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b316bd5e-e263-46a3-a616-66a8a9502ad4, published Oct 8, 2026, 4:19 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Sep 28, 2026, 10:02 AM EDT · Map |
| Sep 28, 2026, 10:02 AM EDT | Sep 28, 2026, 11:21 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1813a511-6b4c-435c-8e0c-87d9370b07da, published Sep 28, 2026, 2:59 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Sep 28, 2026, 10:02 AM EDT · Map |
| Sep 27, 2026, 1:36 PM EDT | Sep 27, 2026, 11:30 PM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 90.38 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:4:1, reported Sep 28, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Sep 27, 2026, 1:36 PM EDT · Map |
| Sep 27, 2026, 8:36 AM EDT | Sep 27, 2026, 6:30 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 90.38 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2736acb0-03c1-4289-9862-14a600414b96, published Oct 8, 2026, 4:14 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Sep 27, 2026, 8:36 AM EDT · Map |
| Sep 27, 2026, 8:36 AM EDT | Sep 27, 2026, 6:30 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 379d127b-cacb-41a5-8bfd-afd6a6eda7fe, published Sep 27, 2026, 9:22 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Sep 27, 2026, 8:36 AM EDT · Map |
| Jul 22, 2026, 2:33 AM EDT | Jul 22, 2026, 3:02 AM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 350,000 gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:3:2, reported Jul 21, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Jul 22, 2026, 2:33 AM EDT · Map |
| Jul 22, 2026, 12:15 AM EDT | Jul 22, 2026, 1:22 AM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 1.54 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:3:1, reported Jul 21, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Jul 22, 2026, 12:15 AM EDT · Map |
| Jul 21, 2026, 9:33 PM EDT | Jul 21, 2026, 10:02 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 350,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record c1979a75-328b-4bbc-a69a-67a150678534, published Aug 5, 2026, 2:33 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 21, 2026, 9:33 PM EDT · Map |
| Jul 21, 2026, 9:33 PM EDT | Jul 21, 2026, 10:02 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 706e2d0b-df1b-4cdf-a1b9-2843ef658f4c, published Jul 22, 2026, 6:21 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 21, 2026, 9:33 PM EDT · Map |
| Jul 21, 2026, 7:15 PM EDT | Jul 21, 2026, 8:22 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 1.54 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ff8f4348-cc9d-4a3c-8ff4-9153964c39de, published Aug 5, 2026, 2:31 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 21, 2026, 7:15 PM EDT · Map |
| Jul 21, 2026, 7:15 PM EDT | Jul 21, 2026, 8:22 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 477a7a4a-3642-4250-a7b5-ab0af1c63386, published Jul 21, 2026, 8:59 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 21, 2026, 7:15 PM EDT · Map |
| Jul 8, 2026, 12:09 AM EDT | Jul 8, 2026, 4:12 AM EDT | Massachusetts Water Resources Authority | not stated | Bypass | 20.41 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:2:1, reported Jul 8, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | Event: Bypass, Massachusetts Water Resources Authority, Jul 8, 2026, 12:09 AM EDT · Map |
| Jul 7, 2026, 7:09 PM EDT | Jul 7, 2026, 11:12 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 20.41 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record b688d153-0044-482d-a643-a875a202c9c3, published Aug 5, 2026, 2:28 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 7, 2026, 7:09 PM EDT · Map |
| Jul 7, 2026, 7:09 PM EDT | Jul 7, 2026, 11:12 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f248b89b-dcea-40de-af2b-6e3640aabd1f, published Jul 8, 2026, 10:05 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | Event: Blended (partially treated) discharge, MASSACHUSETTS WATER RESOURCES AUTHORITY, Jul 7, 2026, 7:09 PM EDT · Map |
| Mar 16, 2026, 11:18 PM EDT | Mar 17, 2026, 2:07 AM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 5.98 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:1:2, reported Mar 19, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 16, 2026, 10:18 PM EDT | Mar 17, 2026, 1:07 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 5.98 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 2f87493f-2e45-4e3f-9890-808b2087d0f7, published Apr 8, 2026, 10:33 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 16, 2026, 10:18 PM EDT | Mar 17, 2026, 1:07 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record bdfc7578-67c1-4a51-911d-10b5910a83bd, published Mar 17, 2026, 7:40 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 16, 2026, 9:36 AM EDT | Mar 16, 2026, 12:30 PM EDT | Massachusetts Water Resources Authority | not stated | Bypassrevised | 10.09 million gal | EPA ECHO Sewer Overflow and Bypass Event report (reported to regulators) via ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions), record MA0103284:1:1, reported Mar 19, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 16, 2026, 8:36 AM EDT | Mar 16, 2026, 11:30 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 10.09 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record edc15fe9-da0e-45de-bdcd-06113a26da66, published Apr 8, 2026, 10:32 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 16, 2026, 8:36 AM EDT | Mar 16, 2026, 11:30 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 8036b7ad-92cb-4c33-aa57-65a5e0cee09c, published Mar 16, 2026, 8:55 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 20, 2025, 12:52 PM EDT | Oct 20, 2025, 1:48 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 440,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 6540e804-4adf-465a-9e93-2e73cc9870e2, published Nov 12, 2025, 9:41 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 20, 2025, 12:52 PM EDT | Oct 20, 2025, 1:48 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f30a90cf-c3b2-47d9-8128-32c8ad2ac80d, published Oct 20, 2025, 4:31 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 13, 2025, 1:59 PM EDT | Oct 13, 2025, 9:35 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 35.15 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 200fc37c-2d68-4ff5-a4e9-782acbe62217, published Nov 12, 2025, 9:39 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 13, 2025, 1:59 PM EDT | Oct 13, 2025, 9:35 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 31c589e6-8950-47fc-904b-4267b1d65a64, published Oct 14, 2025, 8:02 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 8, 2025, 11:01 AM EDT | Oct 8, 2025, 12:25 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 3.39 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 05af9364-56c5-47c2-ade4-497cdf777329, published Nov 12, 2025, 9:38 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Oct 8, 2025, 11:01 AM EDT | Oct 8, 2025, 12:25 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record e55de277-7985-4657-8c41-8f212a4ee6e0, published Oct 8, 2025, 12:57 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 25, 2025, 10:23 AM EDT | Sep 25, 2025, 12:17 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 4.08 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record bbbc6e9a-b2a9-42bf-b1f4-c1792acc4e79, published Oct 20, 2025, 4:41 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 25, 2025, 10:23 AM EDT | Sep 25, 2025, 12:17 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 86e4f432-4476-44e2-bb34-ca7beb1ede45, published Sep 26, 2025, 7:57 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 6, 2025, 7:13 PM EDT | Sep 6, 2025, 8:35 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 3.55 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record ddfac4dd-1fbb-4bf1-81e6-743ba7c38ab0, published Oct 20, 2025, 4:35 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 6, 2025, 7:13 PM EDT | Sep 6, 2025, 8:35 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0e8bcf48-4205-48b9-b871-b7d7bab0044c, published Sep 7, 2025, 11:22 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jul 10, 2025, 9:39 AM EDT | Jul 10, 2025, 1:20 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 8.18 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 315550d5-1de5-4802-9956-580b8e62bdaa, published Aug 14, 2025, 11:26 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jul 10, 2025, 9:39 AM EDT | Jul 10, 2025, 1:20 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 51dc5d15-d305-42e6-86ac-e625d15ade74, published Jul 10, 2025, 2:03 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jun 8, 2025, 5:04 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 652238d3-891e-43f7-a484-18c2c66fd5ca, published Jun 7, 2025, 8:47 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jun 7, 2025, 5:04 PM EDT | Jun 7, 2025, 8:10 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 15 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record c9c6ae68-7581-43e9-bdf7-272819a59f39, published Jul 7, 2025, 11:39 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 22, 2025, 6:10 PM EDT | May 23, 2025, 7:30 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 241.38 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 6c1eb758-fb28-49c6-b676-a65ab026abfd, published Jun 9, 2025, 2:26 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 22, 2025, 6:10 PM EDT | May 23, 2025, 7:30 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 23eacad5-4bb6-41a6-bb81-c4b7693d0fc2, published May 25, 2025, 1:03 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 22, 2025, 6:10 PM EDT | May 23, 2025, 7:30 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 27db54c1-5428-41af-9d98-d732619d0d99, published May 23, 2025, 11:06 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 10, 2025, 6:27 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 01ee07e8-bcf4-4c23-8144-b5d297f22133, published May 9, 2025, 10:24 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 9, 2025, 6:27 PM EDT | May 9, 2025, 9:42 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 8.5 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record dad5660f-ecd7-4d73-813c-6d9052e07da1, published Jun 10, 2025, 8:37 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 1, 2025, 2:21 AM EDT | Apr 1, 2025, 3:09 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 180,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 92452f82-7cbf-4395-87b8-1fb88cb8cd09, published May 13, 2025, 8:33 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 1, 2025, 2:21 AM EDT | Apr 1, 2025, 3:09 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1748f398-a31f-414a-9b18-bb5276421f66, published Apr 1, 2025, 10:19 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 24, 2025, 5:49 PM EDT | Mar 24, 2025, 8:10 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 3.81 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0485952f-b949-44d1-b530-2afe389e2237, published Apr 8, 2025, 9:55 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 24, 2025, 5:49 PM EDT | Mar 24, 2025, 8:10 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 36d22f85-66de-4b58-92ca-1b036c9990cb, published Mar 25, 2025, 6:48 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 17, 2025, 6:06 AM EDT | Mar 17, 2025, 12:19 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 18.01 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d02875be-4a83-44a0-9586-7d9e208e5684, published Apr 8, 2025, 9:54 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 17, 2025, 6:06 AM EDT | Mar 17, 2025, 12:19 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 76bdfbfb-322a-4761-80cc-b4b479df9e0b, published Mar 17, 2025, 4:37 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 6, 2025, 4:31 AM EST | Mar 6, 2025, 5:57 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 1.63 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cc6afef9-76d5-40a3-a315-44ba565c2838, published Apr 8, 2025, 9:53 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 6, 2025, 4:31 AM EST | Mar 6, 2025, 5:57 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record da20cbd9-a514-4279-a947-b30206c029a6, published Mar 6, 2025, 9:53 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 17, 2025, 4:16 PM EST | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 8453a4b5-11ed-4619-9940-3eac630aaa62, published Feb 16, 2025, 8:47 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 16, 2025, 9:03 PM EST | Feb 16, 2025, 10:02 PM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 190,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 53320984-ee43-4041-b066-8a3e9a1ffd64, published Mar 3, 2025, 9:14 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 16, 2025, 9:03 PM EST | Feb 16, 2025, 10:02 PM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3120d942-170b-4236-a228-eb923cf6193b, published Feb 17, 2025, 6:35 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 16, 2025, 4:16 PM EST | Feb 16, 2025, 7:50 PM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 9.31 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cd1bb748-023c-47f8-bf6e-5f33a1fe3534, published Mar 3, 2025, 9:15 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Dec 30, 2024, 9:52 AM EST | Dec 30, 2024, 10:26 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 10,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f6630718-1d6b-465f-98e9-07a6e5aa328f, published Jan 14, 2025, 11:07 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Dec 30, 2024, 9:52 AM EST | Dec 30, 2024, 10:26 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 90b1cbd0-3253-4f30-8471-fbffa18b2e4f, published Dec 30, 2024, 2:07 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Dec 11, 2024, 2:53 PM EST | Dec 12, 2024, 4:19 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 148.93 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 96fb9e25-5d7e-46b4-9e2b-a55ee0c2c203, published Jan 14, 2025, 11:05 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Dec 11, 2024, 2:53 PM EST | Dec 12, 2024, 4:19 AM EST | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 35a4d3a4-e2af-49ea-8af7-4eb7520d9f1a, published Dec 12, 2024, 6:57 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 5, 2024, 1:00 PM EDT | Sep 5, 2024, 1:20 PM EDT | HULL WASTEWATER TREATMENT PLANT | 001 | Bypass | 300 gal | HULL WASTEWATER TREATMENT PLANT (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record a538cd7c-7c1c-4053-800f-28454f4ae87c, published Sep 10, 2024, 2:23 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jun 26, 2024, 10:50 PM EDT | Jun 27, 2024, 2:55 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 14.84 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record c6d7048c-e87d-41c4-84a4-d8b328435f86, published Jul 12, 2024, 10:18 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jun 26, 2024, 10:50 PM EDT | Jun 27, 2024, 2:55 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record e8a09e46-ecbf-4589-b783-9c1b537c16d3, published Jun 27, 2024, 8:00 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 30, 2024, 9:13 AM EDT | May 30, 2024, 1:58 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 36.76 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0603f845-a13f-452e-a240-ae3ba7db64bb, published Jun 12, 2024, 2:54 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| May 30, 2024, 9:13 AM EDT | May 30, 2024, 1:58 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record a7f9499b-96f3-42e8-b486-a9beec7031c8, published May 30, 2024, 3:20 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 12, 2024, 9:20 AM EDT | Apr 12, 2024, 12:55 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 13.36 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 7029fc84-174c-4b96-b585-9f11f5ed8bc4, published May 14, 2024, 7:53 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 12, 2024, 9:20 AM EDT | Apr 12, 2024, 12:55 PM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record f857146d-0c74-4ac6-8b90-390ad6d327d5, published Apr 12, 2024, 2:35 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 12, 2024, 7:14 AM EDT | Apr 12, 2024, 8:32 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 810,000 gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 0bcaeef6-9c1f-4a67-b961-5fecb449ea03, published May 14, 2024, 7:52 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 12, 2024, 7:14 AM EDT | Apr 12, 2024, 8:32 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 4d112b6d-9186-4766-b85b-b7ad71a6206c, published Apr 12, 2024, 2:36 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 4, 2024, 11:00 AM EDT | Apr 5, 2024, 3:40 AM EDT | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 19,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1a0c7bed-2fc2-49cb-ab04-e0bedff1ea19, published May 16, 2024, 2:46 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 4, 2024, 11:00 AM EDT | Apr 5, 2024, 2:50 PM EDT | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 19,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 409375bb-dbca-4db0-894d-04582615086e, published May 15, 2024, 4:08 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 4, 2024, 11:00 AM EDT | ended, time not reported | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | not reported | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 96419707-5a4f-4001-8837-d84a037414c3, published Apr 6, 2024, 9:43 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 4, 2024, 11:00 AM EDT | ended, time not reported | CITY OF GLOUCESTER | not stated | Sanitary sewer overflowrevised | not reported | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 1afee8e4-aaf0-476a-a7fb-7df23a68b802, published Apr 4, 2024, 6:02 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 3, 2024, 9:00 PM EDT | Apr 6, 2024, 1:14 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | 347.84 million gal | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9a815d6e-1bfc-4f2d-81aa-7d05e0b12b0e, published May 14, 2024, 7:47 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 3, 2024, 9:00 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) discharge | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 39d700be-90d4-48d3-91b0-ea74971508e9, published Apr 6, 2024, 5:56 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 3, 2024, 9:00 PM EDT | ended, time not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 004f1587-01d0-4728-9da2-95ecd6c33d34, published Apr 5, 2024, 2:31 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Apr 3, 2024, 9:00 PM EDT | Apr 6, 2024, 1:14 AM EDT | MASSACHUSETTS WATER RESOURCES AUTHORITY | T01 | Blended (partially treated) dischargerevised | not reported | MASSACHUSETTS WATER RESOURCES AUTHORITY (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 04c64fa0-ae49-4d76-a86e-5d23717b6035, published Apr 4, 2024, 3:08 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Mar 29, 2024, 1:30 AM EDT | Mar 29, 2024, 11:10 AM EDT | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 19,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 3ba100cd-c781-4644-a3b1-e129515f965f, published Apr 11, 2024, 3:04 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 13, 2024, 12:05 PM EST | Jan 13, 2024, 3:50 PM EST | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 19,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record cb62819c-1a30-4cf2-b782-15c792950222, published Feb 14, 2024, 2:33 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 10, 2024, 6:47 AM EST | Jan 10, 2024, 1:45 PM EST | SOUTH ESSEX SEWERAGE DISTRICT | not stated | Sanitary sewer overflow | 326,400 gal | SOUTH ESSEX SEWERAGE DISTRICT (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 50f622fc-4c6b-40b5-a15e-0356cca866c9, published Feb 14, 2024, 9:18 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 10, 2024, 6:47 AM EST | ended, time not reported | MARBLEHEAD WATER/SEWER DEPARTMENT | not stated | Sanitary sewer overflow | not reported | MARBLEHEAD WATER/SEWER DEPARTMENT (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record e1f521e6-55ef-4644-876b-3c10d69ab475, published Jan 10, 2024, 4:51 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 10, 2024, 5:00 AM EST | Jan 10, 2024, 3:10 PM EST | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 19,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record d19cc9c1-ff14-4dcd-835f-bb384efef410, published Feb 14, 2024, 2:37 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 28, 2023, 2:00 PM EDT | Sep 29, 2023, 2:30 PM EDT | SOUTH ESSEX SEWERAGE DISTRICT | 001 | Bypass | 72,000 gal | SOUTH ESSEX SEWERAGE DISTRICT (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 9a0ac1ee-7518-445c-ab97-cce4e7c2b7c2, published Oct 4, 2023, 10:42 AM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Sep 28, 2023, 2:00 PM EDT | Sep 29, 2023, 2:30 PM EDT | SOUTH ESSEX SEWERAGE DISTRICT | 001 | Bypassrevised | not reported | SOUTH ESSEX SEWERAGE DISTRICT (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record e8a67ae9-8a7e-4bee-8c96-b3d68f53c05e, published Sep 29, 2023, 3:18 PM EDT, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 4, 2023, 11:00 AM EST | Feb 5, 2023, 2:00 AM EST | CITY OF GLOUCESTER | 001 | Bypass | 890,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 80e7e87e-cea7-44f1-bdba-13aeea150524, published Mar 7, 2023, 12:47 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Feb 4, 2023, 11:00 AM EST | Feb 5, 2023, 2:00 AM EST | CITY OF GLOUCESTER | 001 | Blended (partially treated) dischargerevised | not reported | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 434312e9-3c2b-4239-bf65-dc50b8d242fd, published Feb 6, 2023, 1:02 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 26, 2023, 2:45 AM EST | Jan 26, 2023, 9:20 AM EST | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 79,908 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record a3d90400-b22a-447f-a385-de7d27faf8eb, published Feb 16, 2023, 11:52 AM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Jan 26, 2023, 2:45 AM EST | ended, time not reported | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | not reported | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 8c1da600-c2a1-40ed-a37f-520e1d529c1c, published Jan 26, 2023, 2:52 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
| Dec 17, 2022, 6:40 AM EST | Dec 17, 2022, 9:40 AM EST | CITY OF GLOUCESTER | not stated | Sanitary sewer overflow | 28,000 gal | CITY OF GLOUCESTER (MassDEP sewage notification portal) via MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/), record 43011f49-9720-4696-96ec-bf60a7ba6f4f, published Jan 10, 2023, 2:43 PM EST, retrieved 2026-11-02 10:58 UTC · notice | record below · Map |
Full record (older than 180 days, so no page of its own) | |||||||
Outfalls on this water
No outfall in the registry is matched to this water.
Dischargers: City of Gloucester, Massachusetts Water Resources Authority, South Essex Sewerage District.
Launches
- Boat Ramp Adjacent To Mariner S Park
- Deer Island Sportfishing Pier
- Damde Meadows Tidal Marsh Boat Launch
- Gray S Beach Magnolia Beach Kettle Cove Landing
- Deer Cove Boat Launch Lynn
- Marblehead Lobster Company Boat Ramp
- Provincetown Harbor Boat Launch Provincetown
- Provincetown Harbor Boat Launch
- Massachusetts Bay Carry in Access
- Riverhead Beach
- Sandy Beach Boat Ramp
- Winthrop Harbor
Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, ODbL). · Massachusetts Bay on OpenBoatLaunch
Sources covering this water
- ECHO Effluent Charts REST services (per-permit DMR data incl. monthly CSO event counts, duration, volume per outfall) · updating · last answered Nov 2, 2026, 6:54 AM EST
- ECHO NPDES Sewer Overflow and Bypass Event Dataset (eRule Phase 2, current versions) · updating · last answered Nov 2, 2026, 6:54 AM EST
- MassDEP CSO API behind the portal (eeaonline.eea.state.ma.us/dep/CSOAPI/api/) · updating · last answered Nov 2, 2026, 6:54 AM EST
89 events placed on this water in this build.