Clean Water Act discharge permit · NPDES NY0000728
ST LAWRENCE POWER PROJECT, Massena, NY: NPDES NY0000728 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
ST LAWRENCE POWER PROJECT, held by NEW YORK POWER AUTHORITY, holds NPDES permit NY0000728, which discharges to St Lawrence R. EPA’s file records it issued December 11, 2019 and expiring March 31, 2025.
ST LAWRENCE POWER PROJECT, Massena, New York: Individual permit NY0000728, held by NEW YORK POWER AUTHORITY; Administratively continued (past its expiration date and still in force until reissued); issued December 11, 2019, term to March 31, 2025, by NYSDEC; discharges to ST LAWRENCE R; Hydroelectric Power Generation.
- Solids, suspended percent removal: 3 limits, 143 violations of any kind, 142 effluent exceedances, latest March 31, 2025, largest 567% over the limit.
- BOD, 5-day, percent removal: 3 limits, 80 violations of any kind, 79 effluent exceedances, latest February 28, 2023, largest 640% over the limit.
- Chlorine, total residual: 43 limits, 104 violations of any kind, 62 effluent exceedances, latest March 31, 2025, largest 99,999% over the limit.
- Solids, total suspended: 24 limits, 140 violations of any kind, 54 effluent exceedances, latest November 30, 2023, largest 850% over the limit.
- Coliform, fecal general: 6 limits, 18 violations of any kind, 12 effluent exceedances, latest March 31, 2019, largest 99,999% over the limit.
- Solids, settleable: 24 limits, 98 violations of any kind, 10 effluent exceedances, latest August 31, 2022, largest 900% over the limit.
- Oil & Grease: 18 limits, 94 violations of any kind, 8 effluent exceedances, latest December 31, 2010, largest 247% over the limit.
- PCB-1254: 16 limits, 2 violations of any kind, 2 effluent exceedances, latest December 31, 2023, largest 53% over the limit.
- pH: 18 limits, 85 violations of any kind, 1 effluent exceedance, latest August 31, 2013.
- BOD, 5-day, 20 deg. C: 12 limits, 35 violations of any kind, 1 effluent exceedance, latest August 31, 2020, largest 99,999% over the limit.
- Flow rate: 32 limits, 109 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved: 18 limits, 80 violations of any kind, 0 effluent exceedances.
- Oil and grease visual: 12 limits, 56 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 0 limits, 11 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 0 limits, 6 violations of any kind, 0 effluent exceedances.
- PCB-1260: 16 limits, 0 violations of any kind, 0 effluent exceedances.
- Toluene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Benzene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Ethylbenzene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Naphthalene: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Surfactants [MBAS]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Xylene [mix of m+o+p]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- April 24, 2026: Evaluation (S).
Other permits held by NEW YORK POWER AUTHORITY
- NYS NIAGARA POWER PROJECT, Lewiston: NY0000736, issued September 16, 2009
- CHARLES POLETTI POWER PROJECT, Astoria: NY0007340, issued July 1, 2002
- RICHARD M FLYNN POWER PLT, Holtsville: NY0225746, issued June 29, 2012
- FIRST BUFFALO RIVER MARINA, Buffalo: NYR00F122, issued December 27, 2006
- M.A. SMART PATH - MASSENA LAYDOWN YARD, Massena: NYR11F978, issued January 29, 2025
- MASSENA INTAKE BOAT LAUNCH RECREATION PROJECT, Massena: NYR11G761, issued January 29, 2025
- MOSES-ADIRONDACK SMART PATH RELIABILITY PART 5, Massena: NYR11J857, issued January 29, 2025
- SMART PATH CONNECT PROJECT, Massena: NYR11K059, issued January 29, 2025
- WILLIS 345 / 230KV SUBSTATION, Chateaugay: NYR11K270, issued January 29, 2025
- HAVERSTOCK SUBSTATION, Massena: NYR11K357, issued January 29, 2025
ST LAWRENCE POWER PROJECT among its neighbors
EPA’s permit file holds 10 discharge permits in the Dodge Creek-Frontal Saint Lawrence River subwatershed (HUC 041503010301), NY0000728 among them. Its county holds 88, 11 of them major permits; NY0000728 is a minor permit.
Other permits in the Dodge Creek-Frontal Saint Lawrence River subwatershed (HUC 041503010301)
- AIR PRODUCTS MASSENA, NY GREEN HYDROGEN FACILITY, Massena: NYR11L760, minor permit, discharging to FORESTED WETLAND, permit term to January 28, 2030
- M.A. SMART PATH - MASSENA LAYDOWN YARD, Massena: NYR11F978, minor permit, discharging to SAINT LAWRENCE RIVER, GRASS RIVER, permit term to January 28, 2030
- MASSENA INTAKE BOAT LAUNCH RECREATION PROJECT, Massena: NYR11G761, minor permit, discharging to LAKE ST. LAWRENCE, permit term to January 28, 2030
- MINERVA-DELAND SCHOOL, Fairport: NYR11P735, minor permit, discharging to ERIE CANAL, permit term to January 28, 2030
- MOSES-ADIRONDACK SMART PATH RELIABILITY PART 5, Massena: NYR11J857, minor permit, discharging to GRASSE RIV, ST. LAWRENCE RIV, MASSENA POWER CANAL, permit term to January 28, 2030
- RICHARD'S LANDING DIKE DRAINAGE IMPROVEMENTS, Louisville: NYR11N341, minor permit, discharging to DODGE CREEK, permit term to January 28, 2030
- ST LAWRENCE SEAWAY DEVELOP SNELL LOCK ST, Massena: NY0023035, minor permit, discharging to St Lawrence River, permit term to March 31, 2031
- ST LAWRENCE SEAWAY EISENHOWER LOCK STP, Massena: NY0023051, minor permit, discharging to St Lawrence River, permit term to March 31, 2031
- VILLAGE OF MASSENA WATER TREATMENT PLANT, Massena: NY0270351, minor permit, discharging to UNNAMED DITCH TO MASSENA POWER CANAL, permit term to September 30, 2029
Identity
| Facility as filed | ST LAWRENCE POWER PROJECT |
|---|---|
| Permittee as filed | NEW YORK POWER AUTHORITY |
| NPDES ID | NY0000728 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 11, 2019 |
| Expiration date | March 31, 2025 |
| Issuing agency | NYSDEC |
| Address | Massena, NY 13662 |
| Receiving water | ST LAWRENCE R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Dodge Creek-Frontal Saint Lawrence River (HUC 041503010301) |
| NAICS | 221111 – Hydroelectric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler NYD000765065 |
Effluent limits and exceedances
- 22Pollutants on file
- 20Under a numeric limit
- 15With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Solids, suspended percent removal | 3 | 143 | 142 | March 31, 2025 | 567% over the limit |
| BOD, 5-day, percent removal | 3 | 80 | 79 | February 28, 2023 | 640% over the limit |
| Chlorine, total residual | 43 | 104 | 62 | March 31, 2025 | 99,999% over the limit |
| Solids, total suspended | 24 | 140 | 54 | November 30, 2023 | 850% over the limit |
| Coliform, fecal general | 6 | 18 | 12 | March 31, 2019 | 99,999% over the limit |
| Solids, settleable | 24 | 98 | 10 | August 31, 2022 | 900% over the limit |
| Oil & Grease | 18 | 94 | 8 | December 31, 2010 | 247% over the limit |
| PCB-1254 | 16 | 2 | 2 | December 31, 2023 | 53% over the limit |
| pH | 18 | 85 | 1 | August 31, 2013 | |
| BOD, 5-day, 20 deg. C | 12 | 35 | 1 | August 31, 2020 | 99,999% over the limit |
| Flow rate | 32 | 109 | 0 | ||
| Solids, total dissolved | 18 | 80 | 0 | ||
| Oil and grease visual | 12 | 56 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 11 | 0 | ||
| Temperature, water deg. fahrenheit | 0 | 6 | 0 | ||
| PCB-1260 | 16 | 0 | 0 | ||
| Toluene | 2 | 0 | 0 | ||
| Benzene | 2 | 0 | 0 | ||
| Ethylbenzene | 2 | 0 | 0 | ||
| Naphthalene | 2 | 0 | 0 | ||
| Surfactants [MBAS] | 2 | 0 | 0 | ||
| Xylene [mix of m+o+p] | 2 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NY0000728.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| April 24, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES NY0000728.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.