Clean Water Act discharge permit · NPDES NY0023035
ST LAWRENCE SEAWAY DEVELOP SNELL LOCK ST, Massena, NY: NPDES NY0023035 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ST LAWRENCE SEAWAY DEVELOP SNELL LOCK ST, held by Great Lakes St. Lawrence Seaway Development Corp, holds NPDES permit NY0023035, which discharges to St Lawrence River. EPA’s file records it issued March 19, 2026 and expiring March 31, 2031. 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 ST LAWRENCE SEAWAY DEVELOP SNELL LOCK ST: its NPDES ID, its permit type and status, its dates, its address in Massena, New York, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NY0023035.
Identity
| Facility as filed | ST LAWRENCE SEAWAY DEVELOP SNELL LOCK ST |
|---|---|
| Permittee as filed | Great Lakes St. Lawrence Seaway Development Corp |
| NPDES ID | NY0023035 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | March 19, 2026 |
| Expiration date | March 31, 2031 |
| Issuing agency | NYSDEC |
| Address | Massena, NY 13662 |
| Receiving water | St Lawrence River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Dodge Creek-Frontal Saint Lawrence River (HUC 041503010301) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES NY0023035.
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 NY0023035.
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, NY0023035.
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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 NY0023035 there.
Nearby on the register
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- Every permit record in Massena, A to Z
- Discharge permits in New York
- Every permit record in New York, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.