Clean Water Act discharge permit · NPDES CT0100609
VERNON WPCF, Vernon, CT: NPDES CT0100609 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 47Pollutants under a numeric limit
- 14Pollutants with an effluent exceedance
VERNON WPCF holds NPDES permit CT0100609, which discharges to Hockaman River. EPA’s file records it issued November 10, 2015 and expiring November 30, 2020. 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 | VERNON WPCF |
|---|---|
| Permittee as filed | VERNON WPCF |
| NPDES ID | CT0100609 |
| 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 | November 10, 2015 |
| Expiration date | November 30, 2020 |
| Issuing agency | CT DEP |
| Address | Vernon, CT 06066 |
| Receiving water | HOCKAMAN RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Hockanum River (HUC 010802050401) |
| Other EPA IDs (FRS) | ICIS-AIR source CT0000000901300167 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 57Pollutants on file
- 47Under a numeric limit
- 40With a violation of any kind
- 14With 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 |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 1 | 113 | 110 | June 30, 2011 | 99% over the limit |
| Solids, total suspended | 5 | 37 | 30 | December 31, 2023 | 365% over the limit |
| Chlorine, total residual | 4 | 38 | 27 | July 31, 2012 | 13,400% over the limit |
| Coliform, fecal general | 2 | 21 | 21 | September 30, 1998 | 99,999% over the limit |
| Phosphorus, total [as P] | 5 | 19 | 19 | April 30, 2024 | 1,459% over the limit |
| BOD, 5-day, 20 deg. C | 7 | 39 | 8 | March 31, 2011 | 91% over the limit |
| pH | 2 | 10 | 3 | April 30, 2022 | |
| Copper, total [as Cu] | 4 | 8 | 3 | December 31, 2023 | 47% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 4 | 3 | January 31, 2004 | 28% over the limit |
| Solids, settleable | 0 | 3 | 3 | March 31, 2001 | 7,900% over the limit |
| Zinc, total [as Zn] | 4 | 7 | 2 | June 30, 2011 | 11% over the limit |
| BOD, 5-day, percent removal | 1 | 3 | 2 | January 31, 1997 | 50% over the limit |
| E. coli | 2 | 5 | 1 | June 30, 2025 | 88% over the limit |
| Ultraviolet light dosage | 0 | 1 | 1 | May 31, 2022 | 0% over the limit |
| Flow rate | 2 | 37 | 0 | ||
| Lead, total [as Pb] | 4 | 5 | 0 | ||
| Nitrogen, ammonia total [as N] | 9 | 3 | 0 | ||
| Phenols | 2 | 2 | 0 | ||
| Pass/Fail Static 48Hr Acute D. Pulex | 0 | 2 | 0 | ||
| Cyanide, total [as CN] | 2 | 1 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 1 | 0 | ||
| Arsenic, total [as As] | 2 | 1 | 0 | ||
| Cadmium, total [as Cd] | 2 | 1 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 1 | 0 | ||
| Chromium, total [as Cr] | 2 | 1 | 0 | ||
| Thallium, total [as Tl] | 2 | 1 | 0 | ||
| Nickel, total [as Ni] | 2 | 1 | 0 | ||
| Silver, total [as Ag] | 2 | 1 | 0 | ||
| Antimony, total [as Sb] | 2 | 1 | 0 | ||
| Selenium, total [as Se] | 2 | 1 | 0 | ||
| Mercury, total [as Hg] | 2 | 1 | 0 | ||
| Solids, total, percent | 1 | 1 | 0 | ||
| Solids, fixed, % of total solids | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Turbidity | 0 | 1 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 1 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 1 | 0 | ||
| Beryllium, total recoverable [as Be] | 0 | 1 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 0 | 1 | 0 | ||
| Beryllium, total [as Be] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Aluminum, total [as Al] | 2 | 0 | 0 | ||
| NOAEL Static 48Hr Acute D. pulex | 2 | 0 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 2 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 0 | ||
| Phosphorus, Total [Avg Seasonal Load Cap] | 1 | 0 | 0 | ||
| Arsenic, sludge tot. dry wt [as As] | 1 | 0 | 0 | ||
| Beryllium, sludge, tot. dry wt [as Be] | 1 | 0 | 0 | ||
| Solids, volatile % of total solids | 1 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 1 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 1 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 1 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 1 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 1 | 0 | 0 | ||
| Copper, sludge, total, dry weight [as Cu] | 1 | 0 | 0 | ||
| Cadmium, sludge, total, dry weight [as Cd] | 1 | 0 | 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 |
|---|---|---|
| April 17, 2019 | Reporting Violations - Improper/ Incorrect Reporting | 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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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.