Clean Water Act discharge permit · NPDES ME0101851
STONINGTON SD WWTF, Stonington, ME: NPDES ME0101851 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
STONINGTON SD WWTF, held by STONINGTON SANITARY DISTRICT, holds NPDES permit ME0101851, which discharges to Deer Isle Thoroughfare. EPA’s file records it issued April 1, 2019 and expiring March 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | STONINGTON SD WWTF |
|---|---|
| Permittee as filed | STONINGTON SANITARY DISTRICT |
| NPDES ID | ME0101851 |
| 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, 2019 |
| Expiration date | March 31, 2024 |
| Address | Stonington, ME 04681 |
| Receiving water | Deer Isle Thoroughfare |
| Subwatershed | Islands of Stonington Frontal Drainages (HUC 010500021702) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 10Under a numeric limit
- 11With 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 |
|---|---|---|---|---|---|
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 26 | 8 | July 31, 2011 | 99,999% over the limit |
| Fecal coliform, MPN, EC med, 44.5 C | 4 | 5 | 3 | March 31, 2025 | 99,999% over the limit |
| pH | 8 | 47 | 1 | November 30, 2018 | |
| Chlorine, total residual | 2 | 11 | 1 | July 31, 2011 | 260% over the limit |
| Solids, total suspended | 8 | 92 | 0 | ||
| BOD, 5-day, 20 deg. C | 8 | 91 | 0 | ||
| Solids, settleable | 6 | 46 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 26 | 0 | ||
| Enterococci | 4 | 2 | 0 | ||
| BOD, percent removal [total] | 2 | 1 | 0 | ||
| Solids, suspended percent removal | 2 | 1 | 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 ME0101851.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, ME0101851.
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 ME0101851 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.