Clean Water Act discharge permit · NPDES CTP002421
TWEED-NEW HAVEN REGIONAL AIRPORT, New Haven, CT: NPDES CTP002421 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
TWEED-NEW HAVEN REGIONAL AIRPORT, held by Tweed-New Haven Airport Authority, holds NPDES permit CTP002421. EPA’s file records it issued September 23, 2020 and expiring September 30, 2030. 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 | TWEED-NEW HAVEN REGIONAL AIRPORT |
|---|---|
| Permittee as filed | Tweed-New Haven Airport Authority |
| NPDES ID | CTP002421 |
| Permit status | Effective |
| Permit type | Individual industrial user permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 23, 2020 |
| Expiration date | September 30, 2030 |
| Issuing agency | CT DEEP |
| Address | New Haven, CT 06512 |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 10With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 7 | 4 | December 31, 2025 | 88% over the limit |
| pH | 2 | 5 | 3 | February 28, 2025 | |
| pH, minimum | 1 | 3 | 2 | January 31, 2023 | |
| pH, maximum | 1 | 2 | 1 | February 28, 2025 | |
| Solids, total suspended | 2 | 2 | 0 | ||
| Propylene glycol, total | 2 | 2 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 2 | 0 | ||
| Flow rate | 1 | 1 | 0 | ||
| Flow, maximum during 24 hr period | 1 | 1 | 0 | ||
| Flow | 1 | 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 CTP002421.
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, CTP002421.
Start the watch
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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 CTP002421 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.