Clean Water Act discharge permit · NPDES CT0100251
HARTFORD WPCF, Hartford, CT: NPDES CT0100251 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
HARTFORD WPCF, held by HARTFORD MDC WPCF, holds NPDES permit CT0100251, which discharges to Connecticut River. EPA’s file records it issued October 25, 2005 and expiring October 24, 2010. 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 | HARTFORD WPCF |
|---|---|
| Permittee as filed | HARTFORD MDC WPCF |
| NPDES ID | CT0100251 |
| 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 | October 25, 2005 |
| Expiration date | October 24, 2010 |
| Issuing agency | CT DEP |
| Address | Hartford, CT 06114 |
| Receiving water | CONNECTICUT RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | North Branch Park River (HUC 010802050302) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 49Pollutants on file
- 24Under a numeric limit
- 49With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 87 | 77 | May 31, 2026 | 544% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 79 | 77 | March 31, 2011 | 48% over the limit |
| Chlorine, total residual | 2 | 16 | 15 | September 30, 2010 | 100% over the limit |
| Solids, settleable | 0 | 15 | 15 | November 30, 2003 | 4,233% over the limit |
| Coliform, fecal general | 2 | 10 | 7 | May 31, 2015 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 5 C] | 3 | 8 | 4 | February 28, 2018 | 74% over the limit |
| pH | 2 | 7 | 4 | December 31, 2001 | |
| BOD, 5-day, 20 deg. C | 0 | 10 | 3 | November 30, 2002 | 38% over the limit |
| Ultraviolet light dosage | 0 | 2 | 2 | May 31, 2022 | 100% over the limit |
| Enterococci | 0 | 3 | 1 | May 31, 2022 | 44% over the limit |
| Arsenic, total [as As] | 1 | 4 | 0 | ||
| Copper, total [as Cu] | 0 | 4 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 3 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 3 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 3 | 0 | ||
| Cyanide, total [as CN] | 0 | 3 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 3 | 0 | ||
| Cadmium, total [as Cd] | 0 | 3 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 3 | 0 | ||
| Chromium, total [as Cr] | 0 | 3 | 0 | ||
| Lead, total [as Pb] | 0 | 3 | 0 | ||
| Thallium, total [as Tl] | 0 | 3 | 0 | ||
| Nickel, total [as Ni] | 0 | 3 | 0 | ||
| Silver, total [as Ag] | 0 | 3 | 0 | ||
| Zinc, total [as Zn] | 0 | 3 | 0 | ||
| Antimony, total [as Sb] | 0 | 3 | 0 | ||
| Selenium, total [as Se] | 0 | 3 | 0 | ||
| Phenols | 0 | 3 | 0 | ||
| Mercury, total [as Hg] | 0 | 3 | 0 | ||
| Pass/Fail Static 48Hr Acute D. Pulex | 2 | 2 | 0 | ||
| Cadmium, sludge, total, dry weight [as Cd] | 1 | 2 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 2 | 1 | 0 | ||
| Nitrogen, total [as N] | 1 | 1 | 0 | ||
| Beryllium, total [as Be] | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Solids, total, percent | 1 | 1 | 0 | ||
| Solids, fixed, % of total solids | 1 | 1 | 0 | ||
| Solids, volatile % of total solids | 1 | 1 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 1 | 1 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 1 | 1 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 1 | 1 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 1 | 1 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 1 | 1 | 0 | ||
| Copper, sludge, total, dry weight [as Cu] | 1 | 1 | 0 | ||
| Solids, suspended percent removal | 1 | 1 | 0 | ||
| Carbonaceous oxygen demand, % removal | 1 | 1 | 0 | ||
| Turbidity | 0 | 1 | 0 | ||
| Duration of discharge | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES CT0100251.
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 CT0100251 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.