Clean Water Act discharge permit · NPDES CT0100293
MANCHESTER WPCF, Manchester, CT: NPDES CT0100293 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 51Pollutants under a numeric limit
- 15Pollutants with an effluent exceedance
MANCHESTER WPCF, held by TOWN OF MANCHESTER, holds NPDES permit CT0100293, which discharges to Hockanum River. EPA’s file records it issued September 28, 2015 and expiring September 30, 2020. 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 | MANCHESTER WPCF |
|---|---|
| Permittee as filed | TOWN OF MANCHESTER |
| NPDES ID | CT0100293 |
| 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, 2015 |
| Expiration date | September 30, 2020 |
| Issuing agency | CT DEP |
| Address | Manchester, CT 06040 |
| Receiving water | HOCKANUM RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Hockanum River (HUC 010802050402) |
| Program components on file | POTW, Pretreatment |
| 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
- 56Pollutants on file
- 51Under a numeric limit
- 38With a violation of any kind
- 15With 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 |
|---|---|---|---|---|---|
| Zinc, total [as Zn] | 4 | 24 | 18 | March 31, 2024 | 33% over the limit |
| Ultraviolet light dosage | 1 | 14 | 14 | August 31, 2024 | 100% over the limit |
| Solids, total suspended | 5 | 17 | 11 | February 28, 2022 | 570% over the limit |
| Oxygen, dissolved [DO] | 1 | 13 | 11 | November 30, 2018 | 61% over the limit |
| NOAEL Static 48Hr Acute D. pulex | 2 | 9 | 9 | June 30, 2025 | 100% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 8 | 8 | June 30, 2013 | 21% over the limit |
| E. coli | 2 | 6 | 6 | July 31, 2024 | 139% over the limit |
| Coliform, fecal general | 0 | 6 | 6 | September 30, 2013 | 288% over the limit |
| BOD, carbonaceous [5 day, 5 C] | 3 | 10 | 4 | March 31, 2013 | 40% over the limit |
| Solids, suspended percent removal | 1 | 7 | 4 | February 28, 2022 | 713% over the limit |
| Phosphorus, total [as P] | 5 | 4 | 3 | July 31, 2023 | 15% over the limit |
| Copper, total [as Cu] | 2 | 3 | 3 | November 30, 2012 | 80% over the limit |
| Carbonaceous oxygen demand, % removal | 1 | 6 | 2 | March 31, 2012 | 20% over the limit |
| NOAEL Static 48Hr Acute Pimephales promelas | 2 | 1 | 1 | December 31, 2015 | 2% over the limit |
| Solids, settleable | 0 | 1 | 1 | October 31, 2003 | 1,400% over the limit |
| Flow rate | 2 | 7 | 0 | ||
| Nitrogen, ammonia total [as N] | 12 | 5 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 5 | 0 | ||
| pH | 2 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 3 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 3 | 0 | ||
| Arsenic, sludge tot. dry wt [as As] | 1 | 3 | 0 | ||
| Beryllium, sludge, tot. dry wt [as Be] | 1 | 3 | 0 | ||
| Solids, volatile % of total solids | 1 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 1 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 1 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 1 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 1 | 3 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 1 | 3 | 0 | ||
| Copper, sludge, total, dry weight [as Cu] | 1 | 3 | 0 | ||
| Cadmium, sludge, total, dry weight [as Cd] | 1 | 3 | 0 | ||
| LC50 Static 48Hr Acute D. Pulex | 0 | 3 | 0 | ||
| Oxygen demand, ultimate | 6 | 2 | 0 | ||
| Solids, total, percent | 1 | 2 | 0 | ||
| Solids, fixed, % of total solids | 1 | 2 | 0 | ||
| Thallium, total [as Tl] | 2 | 1 | 0 | ||
| Aluminum, total [as Al] | 2 | 1 | 0 | ||
| Phosphorus, Total [Avg Seasonal Load Cap] | 1 | 1 | 0 | ||
| Nitrogen, nitrite total [as N] | 2 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 2 | 0 | 0 | ||
| Cyanide, total [as CN] | 2 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 0 | 0 | ||
| Arsenic, total [as As] | 2 | 0 | 0 | ||
| Beryllium, total [as Be] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 0 | 0 | ||
| Antimony, total [as Sb] | 2 | 0 | 0 | ||
| Selenium, total [as Se] | 2 | 0 | 0 | ||
| Phenols | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 15, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 27, 2018 | 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 October 14, 2026.