Clean Water Act discharge permit · NPDES ME0100781
BANGOR WWTF, Bangor, ME: NPDES ME0100781 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
BANGOR WWTF, held by BANGOR CITY OF, holds NPDES permit ME0100781, which discharges to Penobscot River. EPA’s file records it issued July 1, 2016 and expiring June 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BANGOR WWTF |
|---|---|
| Permittee as filed | BANGOR CITY OF |
| NPDES ID | ME0100781 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 1, 2016 |
| Expiration date | June 30, 2021 |
| Address | Bangor, ME 04401 |
| Receiving water | Penobscot River |
| Subwatershed | Felts Brook-Penobscot River (HUC 010200051003) |
| Program components on file | CSO, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler MEX020004800 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 27Pollutants on file
- 19Under a numeric limit
- 25With a violation of any kind
- 8With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli, thermotol, MF, MTEC | 4 | 45 | 10 | August 31, 2025 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 16 | 241 | 7 | December 31, 2024 | 87% over the limit |
| Solids, total suspended | 16 | 220 | 7 | December 31, 2025 | 91% over the limit |
| Chlorine, total residual | 6 | 39 | 5 | September 30, 2010 | 293% over the limit |
| pH | 2 | 110 | 2 | October 31, 2016 | |
| BOD, 5-day, percent removal | 1 | 81 | 2 | November 30, 2007 | 25% over the limit |
| Lead, total [as Pb] | 2 | 9 | 2 | July 31, 2014 | 307% over the limit |
| Solids, suspended percent removal | 1 | 81 | 1 | February 28, 2002 | 13% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 108 | 0 | ||
| Solids, settleable | 1 | 62 | 0 | ||
| Cadmium, total [as Cd] | 0 | 50 | 0 | ||
| Silver, total [as Ag] | 0 | 46 | 0 | ||
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 30 | 0 | ||
| NOAEL Static 48Hr Acute Ceriodaphnia dubia | 1 | 26 | 0 | ||
| Noel Statre 7Day Chronic Pimephales | 0 | 25 | 0 | ||
| Noel Statre 10Day Chronic Salvel. Salmonid | 1 | 24 | 0 | ||
| NOAEL Static 48Hr Acute Salvel. Salmonid | 1 | 24 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 0 | 24 | 0 | ||
| Priority Pollutants | 1 | 23 | 0 | ||
| Overflows | 1 | 18 | 0 | ||
| Surface loading rate | 0 | 18 | 0 | ||
| Phosphorus, total [as P] | 0 | 4 | 0 | ||
| Copper, total [as Cu] | 0 | 4 | 0 | ||
| Flow rate | 2 | 2 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Analytical Chemistry | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES ME0100781.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ME0100781 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.