Clean Water Act discharge permit · NPDES CT0030449
CONNECTICUT GALVANIZING CORP., Glastonbury, CT: NPDES CT0030449 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
CONNECTICUT GALVANIZING CORP., held by CONNECTICUT GALVANIZING, DIV. OF HIGHWAY SAFETY CORP, holds NPDES permit CT0030449, which discharges to Hubbard Brook & Salmon Brook. EPA’s file records it issued September 30, 2011 and expiring September 30, 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 | CONNECTICUT GALVANIZING CORP. |
|---|---|
| Permittee as filed | CONNECTICUT GALVANIZING, DIV. OF HIGHWAY SAFETY CORP |
| NPDES ID | CT0030449 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 30, 2011 |
| Expiration date | September 30, 2016 |
| Issuing agency | CT DEP |
| Address | Glastonbury, CT 06033 |
| Receiving water | HUBBARD BROOK & SALMON BROOK |
| Subwatershed | Goff Brook-Connecticut River (HUC 010802050505) |
| Other EPA IDs (FRS) | RCRA handler CTD001148428; ICIS-AIR source CT0000000900308901 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 23Pollutants on file
- 21Under a numeric limit
- 23With a violation of any kind
- 7With 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 | 5 | 51 | 40 | October 31, 2016 | 570% over the limit |
| Zinc, total [as Zn] | 12 | 40 | 29 | June 30, 2017 | 223,338% over the limit |
| Lead, total [as Pb] | 12 | 36 | 25 | June 30, 2017 | 2,267% over the limit |
| Oil & Grease | 5 | 33 | 22 | October 31, 2016 | 3,020% over the limit |
| Copper, total [as Cu] | 12 | 28 | 17 | June 30, 2017 | 533% over the limit |
| LC50 Static 48Hr Acute D. Pulex | 5 | 12 | 2 | September 30, 2023 | 100% over the limit |
| LC50 Static 48Hr Acute Pimephales promelas | 5 | 12 | 2 | September 30, 2023 | 100% over the limit |
| pH | 10 | 23 | 0 | ||
| Oxygen demand, chem. [low level] [COD] | 5 | 11 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 11 | 0 | ||
| Nitrogen, nitrate total [as N] | 5 | 11 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 11 | 0 | ||
| Phosphorus, total [as P] | 5 | 11 | 0 | ||
| Chromium, total [as Cr] | 5 | 11 | 0 | ||
| Iron, total [as Fe] | 5 | 11 | 0 | ||
| Nickel, total [as Ni] | 5 | 11 | 0 | ||
| Aluminum, total [as Al] | 5 | 11 | 0 | ||
| Flow rate | 5 | 10 | 0 | ||
| Copper, dissolved [as Cu] | 5 | 10 | 0 | ||
| Lead, dissolved [as Pb] | 5 | 10 | 0 | ||
| Zinc, dissolved [as Zn] | 5 | 10 | 0 | ||
| NOAEL Static 48Hr Acute D. pulex | 0 | 1 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 22, 2023 | Effluent Violations - Unapproved Bypass | ST6 |
| May 22, 2023 | Monitoring Violations - Failure to Monitor for Toxicity Requirements | ST6 |
| May 22, 2023 | Permit Violations - Unapproved Operation | ST6 |
| May 22, 2023 | Permit Violations - Discharge Without a Valid Permit | 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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, CT0030449.
Start the watch
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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 CT0030449 there.
Nearby on the register
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- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.