Clean Water Act discharge permit · NPDES RI0100366
JAMESTOWN WWTF, Jamestown, RI: NPDES RI0100366 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 26Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
JAMESTOWN WWTF, held by TOWN OF JAMESTOWN, holds NPDES permit RI0100366, which discharges to Narragansett Bay. EPA’s file records it issued December 16, 2016 and expiring December 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | JAMESTOWN WWTF |
|---|---|
| Permittee as filed | TOWN OF JAMESTOWN |
| NPDES ID | RI0100366 |
| 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 | December 16, 2016 |
| Expiration date | December 31, 2021 |
| Address | Jamestown, RI 02835 |
| Receiving water | NARRAGANSETT BAY |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 64Pollutants on file
- 26Under a numeric limit
- 62With a violation of any kind
- 10With 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 64 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 2 | 40 | 33 | March 31, 2026 | 287,845% over the limit |
| BOD, 5-day, 20 deg. C | 10 | 29 | 11 | March 31, 2010 | 171% over the limit |
| Solids, total suspended | 10 | 36 | 9 | September 30, 2021 | 50% over the limit |
| Coliform, fecal general | 3 | 11 | 5 | April 30, 2014 | 5,999,900% over the limit |
| BOD, 5-day, percent removal | 1 | 5 | 4 | March 31, 2010 | 29% over the limit |
| Enterococci | 2 | 7 | 3 | March 31, 2026 | 8,695,552% over the limit |
| Solids, suspended percent removal | 1 | 4 | 3 | December 31, 2020 | 101% over the limit |
| Chlorine, total residual | 2 | 5 | 2 | December 31, 2005 | 15% over the limit |
| pH | 2 | 11 | 1 | August 31, 2002 | |
| LC50 Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 2 | 1 | September 30, 2012 | 100% over the limit |
| Cadmium, total [as Cd] | 2 | 52 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 52 | 0 | ||
| Copper, total [as Cu] | 2 | 52 | 0 | ||
| Lead, total [as Pb] | 2 | 52 | 0 | ||
| Nickel, total [as Ni] | 2 | 52 | 0 | ||
| Zinc, total [as Zn] | 2 | 52 | 0 | ||
| Aluminum, total [as Al] | 2 | 52 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 50 | 0 | ||
| Nitrogen, total [as N] | 3 | 44 | 0 | ||
| Cyanide, free available | 2 | 28 | 0 | ||
| Cyanide, total [as CN] | 2 | 24 | 0 | ||
| Perfluorobutanoic acid (PFBA) | 0 | 4 | 0 | ||
| Perfluorooctanesulfonamide (PFOSA) | 0 | 4 | 0 | ||
| Perfluorodecanoic acid (PFDA) | 0 | 4 | 0 | ||
| Perfluoroundecanoic acid (PFUnA) | 0 | 4 | 0 | ||
| Perfluorododecanoic acid (PFDoA) | 0 | 4 | 0 | ||
| Perfluorotridecanoic acid (PFTrDA) | 0 | 4 | 0 | ||
| Perfluorotetradecanoic acid (PFTeDA) | 0 | 4 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE) | 0 | 4 | 0 | ||
| N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE) | 0 | 4 | 0 | ||
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | 0 | 4 | 0 | ||
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | 0 | 4 | 0 | ||
| Perfluorodecanesulfonic acid (PFDS) | 0 | 4 | 0 | ||
| Perfluoroheptanesulfonic acid (PFHpS) | 0 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 0 | 4 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 0 | 4 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 0 | 4 | 0 | ||
| Perfluoropentanesulfonic acid (PFPeS) | 0 | 4 | 0 | ||
| Perfluorononanesulfonic acid (PFNS) | 0 | 4 | 0 | ||
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | 0 | 4 | 0 | ||
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | 0 | 4 | 0 | ||
| Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) | 0 | 4 | 0 | ||
| Perfluorododecanesulfonic acid (PFDoS) | 0 | 4 | 0 | ||
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | 0 | 4 | 0 | ||
| N-methyl perfluorooctanesulfonamide (NMeFOSA) | 0 | 4 | 0 | ||
| 3-Perfluoropropyl propanoic acid (3:3 FTCA) | 0 | 4 | 0 | ||
| Perfluoro-3-methoxypropanoic acid (PFMPA) | 0 | 4 | 0 | ||
| 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS) | 0 | 4 | 0 | ||
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | 0 | 4 | 0 | ||
| 3-Perfluoroheptyl propanoic acid (7:3 FTCA) | 0 | 4 | 0 | ||
| Perfluoro-4-methoxybutanoic acid (PFMBA) | 0 | 4 | 0 | ||
| 2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA) | 0 | 4 | 0 | ||
| Perfluorooctanesulfonic acid (PFOS) | 0 | 3 | 0 | ||
| N-ethyl perfluorooctanesulfonamide (NEtFOSA) | 0 | 3 | 0 | ||
| Solids, settleable | 2 | 2 | 0 | ||
| Nitrogen, nitrite total [as N] | 2 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 2 | 0 | ||
| Perfluoropentanoic acid (PFPeA) | 0 | 2 | 0 | ||
| Perfluorononanoic acid (PFNA) | 0 | 2 | 0 | ||
| Perfluorobutanesulfonic acid (PFBS) | 0 | 2 | 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 RI0100366.
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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.