Clean Water Act discharge permit · NPDES ME0102245
MATTAWAMKEAG WWTF, Mattawamkeag, ME: NPDES ME0102245 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MATTAWAMKEAG WWTF, held by MATTAWAMKEAG TOWN OF, holds NPDES permit ME0102245, which discharges to Penobscot River. EPA’s file records it issued April 1, 2016 and expiring March 31, 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 | MATTAWAMKEAG WWTF |
|---|---|
| Permittee as filed | MATTAWAMKEAG TOWN OF |
| NPDES ID | ME0102245 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2016 |
| Expiration date | March 31, 2021 |
| Address | Mattawamkeag, ME 04459 |
| Receiving water | Penobscot River |
| Subwatershed | Lower Mattawamkeag River (HUC 010200030704) |
| SIC | 4952 – Sewerage Systems |
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
- 10Pollutants on file
- 9Under a numeric limit
- 10With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 6 | 116 | 2 | April 30, 2014 | 81% over the limit |
| Solids, total suspended | 6 | 115 | 1 | April 30, 2020 | 12% over the limit |
| Solids, settleable | 0 | 20 | 1 | October 31, 2006 | 233% over the limit |
| E. coli, thermotol, MF, MTEC | 2 | 13 | 1 | June 30, 2005 | 44% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 57 | 0 | ||
| pH | 2 | 38 | 0 | ||
| BOD, 5-day, percent removal | 1 | 19 | 0 | ||
| Solids, suspended percent removal | 1 | 19 | 0 | ||
| Mercury, total [as Hg] | 2 | 6 | 0 | ||
| Chlorine, total residual | 1 | 6 | 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 ME0102245.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ME0102245.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 ME0102245 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.