Clean Water Act discharge permit · NPDES RI0100404
QUONSET WWTF, North Kingstown, RI: NPDES RI0100404 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 25Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
QUONSET WWTF, held by QUONSET DEVELOPMENT CORPORATION, holds NPDES permit RI0100404, which discharges to Narragansett Bay. EPA’s file records it issued July 11, 2018 and expiring September 30, 2023. 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 | QUONSET WWTF |
|---|---|
| Permittee as filed | QUONSET DEVELOPMENT CORPORATION |
| NPDES ID | RI0100404 |
| 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 11, 2018 |
| Expiration date | September 30, 2023 |
| Address | North Kingstown, RI 02852 |
| Receiving water | NARRAGANSETT BAY |
| Program components on file | POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| 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
- 66Pollutants on file
- 25Under a numeric limit
- 61With a violation of any kind
- 6With 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; the 60 with the most exceedances of 66 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Enterococci | 2 | 37 | 16 | July 31, 2026 | 396% over the limit |
| BOD, 5-day, 20 deg. C | 10 | 106 | 15 | August 31, 2019 | 58% over the limit |
| Solids, total suspended | 10 | 94 | 3 | July 31, 2013 | 16% over the limit |
| Coliform, fecal general | 2 | 30 | 2 | November 30, 2009 | 99,999% over the limit |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 3 | 1 | September 30, 2012 | 100% over the limit |
| LC50 Static 48Hr Acute Menidia | 1 | 3 | 1 | September 30, 2012 | 100% over the limit |
| Copper, total [as Cu] | 2 | 36 | 0 | ||
| Cyanide, total [as CN] | 0 | 36 | 0 | ||
| Nitrogen, total [as N] | 6 | 20 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 19 | 0 | ||
| pH | 2 | 18 | 0 | ||
| Solids, settleable | 2 | 18 | 0 | ||
| Chlorine, total residual | 2 | 18 | 0 | ||
| Nitrogen, nitrite total [as N] | 4 | 9 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 9 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 9 | 0 | ||
| Oil & Grease | 1 | 9 | 0 | ||
| BOD, 5-day, percent removal | 1 | 9 | 0 | ||
| Solids, suspended percent removal | 1 | 9 | 0 | ||
| Cyanide, free available | 2 | 4 | 0 | ||
| Perfluorohexanoic acid (PFHxA) | 0 | 2 | 0 | ||
| Perfluoroheptanoic acid (PFHpA) | 0 | 2 | 0 | ||
| Perfluorononanoic acid (PFNA) | 0 | 2 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 0 | 2 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 0 | 2 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 0 | 2 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 0 | 2 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 0 | 2 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | 0 | 2 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 0 | 2 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 0 | 2 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 0 | 2 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 0 | 2 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 0 | 2 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 0 | 2 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 0 | 2 | 0 | ||
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | 0 | 2 | 0 | ||
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | 0 | 2 | 0 | ||
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | 0 | 2 | 0 | ||
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | 0 | 2 | 0 | ||
| Perfluoro-4-methoxybutanoic acid (PFMBA) | 0 | 2 | 0 | ||
| Aluminum, total [as Al] | 2 | 1 | 0 | ||
| Perfluorooctanoic acid (PFOA) | 0 | 1 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 0 | 1 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 0 | 1 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 0 | 1 | 0 | ||
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | 0 | 1 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 0 | 1 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 0 | 1 | 0 | ||
| Perfluorohexanesulfonic acid (PFHxS) | 0 | 1 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 0 | 1 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 0 | 1 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 0 | 1 | 0 | ||
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | 0 | 1 | 0 | ||
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | 0 | 1 | 0 | ||
| Perfluorododecanesulfonic acid (PFDoS) | 0 | 1 | 0 | ||
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | 0 | 1 | 0 | ||
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | 0 | 1 | 0 | ||
| Perfluoro-3-methoxypropanoic acid (PFMPA) | 0 | 1 | 0 | ||
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 6, 2023 | Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (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.
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Nearby on the register
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- Every permit record in Rhode Island, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.