Clean Water Act discharge permit · NPDES RI0100030
EAST GREENWICH WWTF, East Greenwich, RI: NPDES RI0100030 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 27Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
EAST GREENWICH WWTF, held by TOWN OF EAST GREENWICH, holds NPDES permit RI0100030, which discharges to Greenwich Cove. EPA’s file records it issued September 28, 2011 and expiring October 31, 2016. 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 | EAST GREENWICH WWTF |
|---|---|
| Permittee as filed | TOWN OF EAST GREENWICH |
| NPDES ID | RI0100030 |
| 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 | September 28, 2011 |
| Expiration date | October 31, 2016 |
| Address | East Greenwich, RI 02818 |
| Receiving water | GREENWICH COVE |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 31Pollutants on file
- 27Under a numeric limit
- 31With 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 |
|---|---|---|---|---|---|
| Nitrogen, total [as N] | 6 | 41 | 32 | May 31, 2026 | 372% over the limit |
| pH | 2 | 35 | 29 | November 30, 2025 | |
| BOD, 5-day, 20 deg. C | 15 | 47 | 17 | May 31, 2026 | 404% over the limit |
| LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 19 | 13 | March 31, 2014 | 99,999% over the limit |
| Enterococci | 2 | 17 | 11 | May 31, 2026 | 8,695,552% over the limit |
| Coliform, fecal general | 2 | 15 | 9 | April 30, 2007 | 5,999,900% over the limit |
| Chlorine, total residual | 0 | 5 | 5 | December 31, 2003 | 10% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 10 | 4 | April 30, 2010 | 12% over the limit |
| BOD, 5-day, percent removal | 1 | 6 | 2 | April 30, 2020 | 67% over the limit |
| Fluoride, total [as F] | 0 | 2 | 2 | December 31, 2004 | 15% over the limit |
| Copper, total [as Cu] | 2 | 7 | 1 | February 29, 2004 | 57% over the limit |
| Solids, total suspended | 15 | 30 | 0 | ||
| Ultraviolet light intensity | 3 | 9 | 0 | ||
| Ultraviolet light transmittance | 3 | 9 | 0 | ||
| Ultraviolet light dosage | 3 | 9 | 0 | ||
| NOEL Static 1Hr 20min Fert. Chronic Arbacia punctulata | 1 | 8 | 0 | ||
| Nitrogen, nitrite total [as N] | 4 | 6 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 6 | 0 | ||
| Solids, settleable | 2 | 6 | 0 | ||
| Cyanide, total [as CN] | 2 | 6 | 0 | ||
| Cadmium, total [as Cd] | 2 | 6 | 0 | ||
| Chromium, total [as Cr] | 2 | 6 | 0 | ||
| Lead, total [as Pb] | 2 | 6 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Zinc, total [as Zn] | 2 | 6 | 0 | ||
| Aluminum, total [as Al] | 2 | 6 | 0 | ||
| Oil & Grease | 1 | 4 | 0 | ||
| Solids, suspended percent removal | 1 | 4 | 0 | ||
| Heptachlor | 0 | 4 | 0 | ||
| Heptachlor epoxide | 0 | 4 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 17, 2026 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| March 17, 2026 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| October 5, 2025 | Dry-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| March 13, 2024 | Management Practice Violations - Improper Operation and Maintenance | 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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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 RI0100030 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.