Clean Water Act discharge permit · NPDES CTDRW0004
USDOT- STAMFORD RAILYARD, Stamford, CT: NPDES CTDRW0004 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
USDOT- STAMFORD RAILYARD, held by Waters Construction Company Inc., holds NPDES permit CTDRW0004. EPA’s file records it issued August 4, 2026 and expiring October 31, 2030. 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.
What the register holds for USDOT- STAMFORD RAILYARD: its NPDES ID, its permit type and status, its dates, its address in Stamford, Connecticut, and 20 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CTDRW0004.
Identity
| Facility as filed | USDOT- STAMFORD RAILYARD |
|---|---|
| Permittee as filed | Waters Construction Company Inc. |
| NPDES ID | CTDRW0004 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 4, 2026 |
| Expiration date | October 31, 2030 |
| Issuing agency | CT DEEP |
| Address | Stamford, CT 06905 |
| Subwatershed | Fivemile River (HUC 011000060404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under 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 | 2 | 0 | 0 | ||
| Flow rate | 1 | 0 | 0 | ||
| Solids, total suspended | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Barium, total [as Ba] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Methyl tert-butyl ether [MTBE] | 1 | 0 | 0 | ||
| Tert-Amyl Methyl Ether | 1 | 0 | 0 | ||
| Polynuclear Aromatic Hydrocarbons [PAHs] | 1 | 0 | 0 | ||
| Flow, maximum during 24 hr period | 1 | 0 | 0 | ||
| tert-Butyl alcohol [TBA] | 1 | 0 | 0 | ||
| Oil & grease, non-polar material | 1 | 0 | 0 | ||
| Volatile Organic Compound [VOC] | 1 | 0 | 0 | ||
| pH, maximum | 1 | 0 | 0 | ||
| pH, minimum | 1 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 0 | 0 | ||
| Flow | 1 | 0 | 0 | ||
| Turbidity, lab, NTU | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CTDRW0004.
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 CTDRW0004.
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, CTDRW0004.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/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 CTDRW0004 there.
Nearby on the register
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- Discharge permits in Connecticut
- Every permit record in Connecticut, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.