Clean Water Act discharge permit · NPDES CT0003701
ALLEGHENY LUDLUM CORPORATION, Wallingford, CT: NPDES CT0003701 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 19Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
ALLEGHENY LUDLUM CORPORATION holds NPDES permit CT0003701, which discharges to Quinnipiac River. EPA’s file records it issued June 27, 2001 and expiring June 26, 2006. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ALLEGHENY LUDLUM CORPORATION |
|---|---|
| Permittee as filed | ALLEGHENY LUDLUM CORPORATION |
| NPDES ID | CT0003701 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 27, 2001 |
| Expiration date | June 26, 2006 |
| Issuing agency | CT DEP |
| Address | Wallingford, CT 06492 |
| Receiving water | QUINNIPIAC RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Outlet Quinnipiac River (HUC 011000040105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 19Under a numeric limit
- 10With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Lead, total [as Pb] | 10 | 39 | 39 | February 28, 2011 | 466% over the limit |
| Chlorine, total residual | 6 | 21 | 21 | July 31, 2002 | 271% over the limit |
| Nickel, total [as Ni] | 10 | 8 | 8 | February 28, 2006 | 90% over the limit |
| Flow rate | 4 | 3 | 3 | September 30, 2002 | 14% over the limit |
| Solids, total suspended | 7 | 2 | 2 | March 31, 2007 | 95% over the limit |
| Zinc, total [as Zn] | 10 | 1 | 1 | February 28, 2007 | 112% over the limit |
| Flow, maximum during 24 hr period | 4 | 1 | 1 | September 30, 2006 | 4% over the limit |
| Iron, total [as Fe] | 2 | 1 | 1 | March 31, 2007 | 38% over the limit |
| NOAEL Static 48Hr Acute D. pulex | 0 | 1 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| Copper, total [as Cu] | 10 | 0 | 0 | ||
| pH | 8 | 0 | 0 | ||
| Pass/Fail Static 48Hr Acute D. Pulex | 8 | 0 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 8 | 0 | 0 | ||
| Chromium, total [as Cr] | 4 | 0 | 0 | ||
| Flow | 4 | 0 | 0 | ||
| Oil & Grease | 3 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Surfactants [MBAS] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES CT0003701.
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 CT0003701 there.
Nearby on the register
- Discharge permits in Wallingford
- Every permit record in Wallingford, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.