Clean Water Act discharge permit · NPDES NY0228346
DARIEN (T) WWTF, Darien Center, NY: NPDES NY0228346 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
DARIEN (T) WWTF, held by DARIEN (T), holds NPDES permit NY0228346, which discharges to Crooked Ck. EPA’s file records it issued May 28, 2020 and expiring June 30, 2025. 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 | DARIEN (T) WWTF |
|---|---|
| Permittee as filed | DARIEN (T) |
| NPDES ID | NY0228346 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | May 28, 2020 |
| Expiration date | June 30, 2025 |
| Issuing agency | NYSDEC |
| Address | Darien Center, NY 14040 |
| Receiving water | CROOKED CK |
| Subwatershed | Elevenmile Creek (HUC 041201040401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 14Under a numeric limit
- 13With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia, total [as NH3] | 9 | 107 | 101 | April 30, 2020 | 2,890% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 11 | 91 | 85 | September 30, 2025 | 600% over the limit |
| Solids, total suspended | 11 | 35 | 28 | September 30, 2025 | 1,200% over the limit |
| Carbonaceous oxygen demand, % removal | 1 | 11 | 9 | April 30, 2023 | 100% over the limit |
| Solids, suspended percent removal | 1 | 7 | 5 | April 30, 2023 | 93% over the limit |
| pH | 4 | 8 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 4 | 0 | ||
| Solids, settleable | 2 | 4 | 0 | ||
| Coliform, fecal general | 2 | 4 | 0 | ||
| Solids, total dissolved | 4 | 2 | 0 | ||
| Flow rate | 1 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Chlorine, total residual | 1 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NY0228346.
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
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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 NY0228346 there.
Nearby on the register
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- Every permit record in New York, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.