DirtyWaterWatch

Maine / Dischargers /

City of Bangor (Wastewater Treatment Plant)

CSO · Maine · Bangor

NPDES permit
ME0100781
Outfalls
9 with coordinates in the registry (the state's layer lists 8)
Receiving waters
Kenduskeag Stream; Penobscot River
Tracked waters
Kenduskeag Stream, ME, Penobscot River, ME
Events tracked
0 discharges
Volume reported
no volumes reported

Source: discharger record from the project's research and EPA ECHO (dischargers.json); counts from the 0 event records below, as of 2026-11-02 11:56 UTC.

How it tells the public

City CSO Control Program page https://bangormaine.gov/294/Combined-Sewer-Overflow-CSO-Control-Prog (history and LTCP, no event notices); city general alerts at https://me-bangor.civicplus.com/636/Alerts-Notifications (not CSO-specific). Signs at outfalls per permit.

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.

9 outfalls in the registry
  • 002 BARKERSVILLE · CSO · Penobscot River
  • 003 DAVIS BROOK · CSO · Penobscot River
  • 006 KENDUSKEAG WEST · CSO · Penobscot River
  • 007 KENDUSKEAG EAST · CSO · Penobscot River
  • 009 HAMMOND STREET · CSO · Penobscot River
  • 011 MEADOW BROOK · CSO · Penobscot River
  • 020 CARR BROOK · CSO · Penobscot River
  • 023 CENTRAL STREET · CSO · Penobscot River
  • 016 Cemetery, off OH · CLS · Kenduskeag Stream

Source: EPA ECHO CSO outfall inventory matched to waters (data/outfalls-ne.json).

Event history

Events reported for City of Bangor (Wastewater Treatment Plant), newest first
StartEnd Water OutfallTypeVolumeSourceLinks
2024 2025 Penobscot River, ME not stated Annual total 9.23 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2025, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2023 2024 Penobscot River, ME not stated Annual total 73.01 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2024:r2025, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2023 2024 Penobscot River, ME not stated Annual totalrevised 73 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2024, published Jun 29, 2025, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2022 2023 Penobscot River, ME not stated Annual total 62.55 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2023, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2021 2022 Penobscot River, ME not stated Annual total 52.47 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2022, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2020 2021 Penobscot River, ME not stated Annual total 77.72 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2021, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2019 2020 Penobscot River, ME not stated Annual total 58.75 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2020, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2018 2019 Penobscot River, ME not stated Annual total 96.01 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2019, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2017 2018 Penobscot River, ME not stated Annual total 50.55 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2018, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2016 2017 Penobscot River, ME not stated Annual total 13.31 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2017, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2015 2016 Penobscot River, ME not stated Annual total 48.59 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2016, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2014 2015 Penobscot River, ME not stated Annual total 40.11 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2015, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2013 2014 Penobscot River, ME not stated Annual total 87.75 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2014, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2012 2013 Penobscot River, ME not stated Annual total 32.14 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2013, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2011 2012 Penobscot River, ME not stated Annual total 69.94 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2012, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

2010 2011 Penobscot River, ME not stated Annual total 146 million gal Maine DEP CSO Status Report via Maine DEP Maine Combined Sewer Overflow Status Report (annual; latest = 2025 report, June 2026), record ME0100781:2011, published Jun 29, 2026, 8:00 PM EDT, retrieved 2026-11-02 11:54 UTC · notice
Full record (older than 180 days, so no page of its own)

This record in the archive list

History

Reported yearly totals: Maine DEP CSO status reports (annual totals)

Maine DEP reports one total per community and year (all of its CSO outfalls); it is shown in full on each water the community's outfalls reach. Event-days: calendar days with any CSO discharge in the community. Source: Maine DEP CSO status reports (annual totals). Covered 2011-01-01 to 2025-12-31.

Reported volume

Gallons per year.

Show table
Reported volume
YearReported volume
2011146,000,000 gal
201269,940,000 gal
201332,140,000 gal
201487,748,000 gal
201540,109,000 gal
201648,586,000 gal
201713,310,000 gal
201850,547,000 gal
201996,009,000 gal
202058,745,000 gal
202177,720,893 gal
202252,468,359 gal
202362,551,149 gal
202473,011,955 gal
20259,226,984 gal

Days with a CSO discharge

Days per year.

Show table
Days with a CSO discharge
YearDays with a CSO discharge
201154
201229
201327
201434
201520
201628
201721
201823
201934
202016
202116
202228
202318
202416
20258
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.