Clean Water Act discharge permit · NPDES CTP002384
PCC STRUCTURALS, Groton, CT: NPDES CTP002384 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
PCC STRUCTURALS, held by WYMAN GORDON INVEST CASTING, holds NPDES permit CTP002384. EPA’s file records it issued August 9, 2013 and expiring August 31, 2018. 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 | PCC STRUCTURALS |
|---|---|
| Permittee as filed | WYMAN GORDON INVEST CASTING |
| NPDES ID | CTP002384 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 9, 2013 |
| Expiration date | August 31, 2018 |
| Issuing agency | CT DEP |
| Address | Groton, CT 06340 |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 17Under a numeric limit
- 15With 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 |
|---|---|---|---|---|---|
| Flow rate | 2 | 16 | 5 | March 31, 2023 | 47% over the limit |
| Flow, maximum during 24 hr period | 2 | 11 | 5 | November 30, 2021 | 276% over the limit |
| Copper, total [as Cu] | 4 | 15 | 4 | September 30, 2010 | 507% over the limit |
| pH, minimum | 2 | 9 | 4 | March 31, 2025 | |
| Flow | 2 | 10 | 3 | March 31, 2023 | 47% over the limit |
| pH | 0 | 5 | 3 | August 31, 2012 | |
| Organics, total toxic [TTO] | 2 | 13 | 1 | August 31, 2006 | 323% over the limit |
| Zinc, total [as Zn] | 4 | 12 | 1 | April 30, 2009 | 2% over the limit |
| Oil & Grease | 2 | 5 | 1 | December 31, 2002 | 140% over the limit |
| pH, maximum | 2 | 5 | 1 | June 30, 2024 | |
| Chromium, total [as Cr] | 4 | 12 | 0 | ||
| Nickel, total [as Ni] | 4 | 11 | 0 | ||
| Lead, total [as Pb] | 4 | 8 | 0 | ||
| Solids, total suspended | 2 | 6 | 0 | ||
| Oil petroleum, total recoverable | 1 | 3 | 0 | ||
| Cyanide, total [as CN] | 4 | 0 | 0 | ||
| Cadmium, total [as Cd] | 4 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 18, 2024 | Effluent Violations - Unapproved Bypass | ST6 |
| February 27, 2024 | Management Practice Violations - Failure to Maintain Records | ST6 |
| February 27, 2024 | Management Practice Violations - Improper Operation and Maintenance | 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, CTP002384.
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 CTP002384 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.