Clean Water Act discharge permit · NPDES WA0041149
PACIFICORP YALE HYDROELECTRIC PROJECT, Amboy, WA: NPDES WA0041149 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
PACIFICORP YALE HYDROELECTRIC PROJECT, held by PacifiCorp Yale Hydroelectric Project, holds NPDES permit WA0041149. EPA’s file records it issued January 22, 2024 and expiring February 28, 2029. 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.
Identity
| Facility as filed | PACIFICORP YALE HYDROELECTRIC PROJECT |
|---|---|
| Permittee as filed | PacifiCorp Yale Hydroelectric Project |
| NPDES ID | WA0041149 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 22, 2024 |
| Expiration date | February 28, 2029 |
| Issuing agency | State |
| Address | Amboy, WA 98601 |
| Subwatershed | Marble Creek-Lewis River (HUC 170800020604) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 2With 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 |
|---|---|---|---|---|---|
| Oil & Grease | 4 | 28 | 0 | ||
| Temperature, water deg. centigrade | 6 | 1 | 0 | ||
| pH | 6 | 0 | 0 | ||
| Flow | 6 | 0 | 0 | ||
| Oil & grease, non-polar material | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WA0041149.
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 WA0041149.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, WA0041149.
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- One watershed — $2,990/year
- One state — $4,990/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 WA0041149 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.