Clean Water Act discharge permit · NPDES ME0100048
BIDDEFORD WWTF, Biddeford, ME: NPDES ME0100048 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
BIDDEFORD WWTF, held by BIDDEFORD CITY OF, holds NPDES permit ME0100048, which discharges to Saco River. EPA’s file records it issued July 1, 2014 and expiring June 30, 2019. 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 | BIDDEFORD WWTF |
|---|---|
| Permittee as filed | BIDDEFORD CITY OF |
| NPDES ID | ME0100048 |
| 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, 2014 |
| Expiration date | June 30, 2019 |
| Address | Biddeford, ME 04005 |
| Receiving water | Saco River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Camp Ellis-Saco River (HUC 010600021105) |
| Program components on file | CSO, POTW, Pretreatment |
| SIC | 4581 – Airports, Flying Fields, & Services |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 26Pollutants on file
- 18Under a numeric limit
- 22With a violation of any kind
- 11With 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 |
|---|---|---|---|---|---|
| Coliform, fecal MF, MFC broth, 44.5 C | 2 | 58 | 30 | August 31, 2023 | 99,999% over the limit |
| Solids, total suspended | 6 | 95 | 15 | March 31, 2025 | 309% over the limit |
| pH | 2 | 40 | 12 | June 30, 2026 | |
| Chlorine, total residual | 2 | 23 | 8 | June 30, 2022 | 1,400% over the limit |
| Solids, settleable | 1 | 21 | 7 | March 31, 2025 | 2,233% over the limit |
| Enterococci | 0 | 7 | 7 | April 30, 2025 | 2,474% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 87 | 5 | October 31, 2022 | 96% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 35 | 3 | May 31, 2006 | 11% over the limit |
| BOD, 5-day, percent removal | 1 | 18 | 2 | February 28, 2023 | 43% over the limit |
| NOEL Static 1Hr 20min Fert. Chronic Arbacia punctulata | 2 | 8 | 1 | September 30, 2012 | 99,999% over the limit |
| Mercury, total [as Hg] | 2 | 5 | 1 | August 31, 2020 | 41% over the limit |
| Copper, total [as Cu] | 0 | 51 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 34 | 0 | ||
| Solids, suspended percent removal | 1 | 16 | 0 | ||
| Priority Pollutants | 1 | 9 | 0 | ||
| NOAEL Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 7 | 0 | ||
| Analytical Chemistry | 2 | 4 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 0 | 4 | 0 | ||
| Noel Statre 7Day Chronic Menidia | 0 | 4 | 0 | ||
| Noael Statre 48Hr Acute Menidia | 0 | 4 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 2 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 8 | 0 | 0 | ||
| Nitrogen, nitrite total [as N] | 4 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 31, 2025 | PR: Failure to sample at least 80% of SIU/CIUs within the past 12 month reporting period (Level II) | ST6 |
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 ME0100048 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.