Clean Water Act discharge permit · NPDES WV0116424
WILLOW ISLAND HYDROELECTRIC FACILITY, Saint Marys, WV: NPDES WV0116424 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
WILLOW ISLAND HYDROELECTRIC FACILITY, held by AMP OHIO INC, holds NPDES permit WV0116424, which discharges to Ohio River. EPA’s file records it issued October 13, 2010 and expiring June 30, 2024. 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 | WILLOW ISLAND HYDROELECTRIC FACILITY |
|---|---|
| Permittee as filed | AMP OHIO INC |
| NPDES ID | WV0116424 |
| 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 | October 13, 2010 |
| Expiration date | June 30, 2024 |
| Address | Saint Marys, WV 26170 |
| Receiving water | OHIO RIVER |
| Subwatershed | Cow Creek-Ohio River (HUC 050302011009) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 25Pollutants on file
- 6Under a numeric limit
- 25With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Iron, total recoverable | 2 | 107 | 7 | May 31, 2013 | 151% over the limit |
| Phenolics, total | 0 | 85 | 3 | January 31, 2015 | 123% over the limit |
| Cyanide, weak acid, dissociable | 0 | 100 | 2 | September 30, 2013 | 148% over the limit |
| pH | 2 | 101 | 1 | March 31, 2017 | |
| Solids, total suspended | 2 | 100 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 100 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 100 | 0 | ||
| Arsenic, total recoverable | 0 | 98 | 0 | ||
| Aluminum, total recoverable | 0 | 98 | 0 | ||
| Lead, total recoverable | 0 | 98 | 0 | ||
| Manganese, total recoverable | 0 | 82 | 0 | ||
| Acenaphthene | 0 | 82 | 0 | ||
| Anthracene | 0 | 82 | 0 | ||
| Benzo[b]fluoranthene | 0 | 82 | 0 | ||
| Benzo[k]fluoranthene | 0 | 82 | 0 | ||
| Benzo[a]pyrene | 0 | 82 | 0 | ||
| Chrysene | 0 | 82 | 0 | ||
| Fluoranthene | 0 | 82 | 0 | ||
| Fluorene | 0 | 82 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 0 | 82 | 0 | ||
| Pyrene | 0 | 82 | 0 | ||
| Benzo[a]anthracene | 0 | 82 | 0 | ||
| Dibenz[a,h]anthracene | 0 | 82 | 0 | ||
| Polynuclear Aromatic Hydrocarbons [PAHs] | 0 | 16 | 0 | ||
| Oil and grease, hexane extr method | 2 | 2 | 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 WV0116424.
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, WV0116424.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 WV0116424 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.