Clean Water Act discharge permit · NPDES CTRSW0149
MIDDLEBURY SUBSTATION TO TRIANGLE SUBSTATION, Danbury, CT: NPDES CTRSW0149 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MIDDLEBURY SUBSTATION TO TRIANGLE SUBSTATION, held by HAUGHLAND LLC, holds NPDES permit CTRSW0149, which discharges to South Central Shoreline. EPA’s file records it issued December 15, 2025 and expiring March 1, 2028. 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.
What the register holds for MIDDLEBURY SUBSTATION TO TRIANGLE SUBSTATION: its NPDES ID, its permit type and status, its dates, its address in Danbury, Connecticut, its receiving water, and 21 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CTRSW0149.
Identity
| Facility as filed | MIDDLEBURY SUBSTATION TO TRIANGLE SUBSTATION |
|---|---|
| Permittee as filed | HAUGHLAND LLC |
| NPDES ID | CTRSW0149 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 15, 2025 |
| Expiration date | March 1, 2028 |
| Issuing agency | CT DEEP |
| Address | Danbury, CT 06810 |
| Receiving water | South Central Shoreline |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 21Under a numeric limit
- 0With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| pH | 6 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Specific conductance | 2 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 2 | 0 | 0 | ||
| Salinity | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Chlorine, total residual | 2 | 0 | 0 | ||
| NOAEL Static 48Hr Acute D. pulex | 2 | 0 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 2 | 0 | 0 | ||
| Flow rate | 1 | 0 | 0 | ||
| Solids, total suspended | 1 | 0 | 0 | ||
| Solids, settleable | 1 | 0 | 0 | ||
| Polynuclear Aromatic Hydrocarbons [PAHs] | 1 | 0 | 0 | ||
| Flow, maximum during 24 hr period | 1 | 0 | 0 | ||
| Flow | 1 | 0 | 0 | ||
| Organics-tot voltile [NJAC reg.7:23-17e] | 1 | 0 | 0 | ||
| Hydrocarbons, total petroleum | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CTRSW0149.
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 CTRSW0149.
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, CTRSW0149.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
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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 CTRSW0149 there.
Nearby on the register
- Discharge permits in Danbury
- Every permit record in Danbury, A to Z
- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.