Clean Water Act discharge permit · NPDES OR0001708
HYDRO, The Dalles, OR: NPDES OR0001708 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
HYDRO, held by HYDRO EXTRUSION USA, LLC, holds NPDES permit OR0001708, which discharges to Columbia River. EPA’s file records it issued December 9, 2014 and expiring November 30, 2019. 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 | HYDRO |
|---|---|
| Permittee as filed | HYDRO EXTRUSION USA, LLC |
| NPDES ID | OR0001708 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 9, 2014 |
| Expiration date | November 30, 2019 |
| Address | The Dalles, OR 97058 |
| Receiving water | COLUMBIA RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Murdock-Columbia River (HUC 170701050406) |
| Other EPA IDs (FRS) | RCRA handler ORQ000035504; ICIS-AIR source OR0000004106500001 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 18Pollutants on file
- 17Under a numeric limit
- 18With 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 |
|---|---|---|---|---|---|
| Cyanide, free not amenable to chlorin. | 1 | 6 | 5 | January 31, 2012 | 230% over the limit |
| Aluminum, total [as Al] | 18 | 104 | 4 | March 31, 2016 | 412% over the limit |
| Oil & Grease | 2 | 10 | 2 | March 31, 2020 | 30% over the limit |
| pH range excursions, monthly total accum | 1 | 4 | 2 | May 31, 2024 | 4,218% over the limit |
| pH range excursions, > 60 minutes | 1 | 3 | 2 | May 31, 2024 | 2,147,483,650% over the limit |
| Solids, total suspended | 6 | 26 | 0 | ||
| Fluoride, total [as F] | 7 | 20 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 18 | 0 | ||
| Chlorine, total residual | 1 | 17 | 0 | ||
| Benzo[a]pyrene | 2 | 12 | 0 | ||
| Antimony, total recoverable | 2 | 10 | 0 | ||
| Aluminum, acid soluble | 0 | 10 | 0 | ||
| Temperature, water deg. centigrade | 2 | 9 | 0 | ||
| Nickel, total recoverable | 2 | 8 | 0 | ||
| pH, maximum | 2 | 5 | 0 | ||
| pH, minimum | 2 | 4 | 0 | ||
| Nickel, dissolved [as Ni] | 1 | 2 | 0 | ||
| Cyanide, total [as CN] | 1 | 1 | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 27, 2024 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| July 1, 2024 | Reporting Violations - Failure to Submit DMRs | ST6 |
| August 20, 2019 | Management Practice Violations - Failure to Maintain Records | ST6 |
| August 20, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| September 1, 2018 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
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 OR0001708 there.
Nearby on the register
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- Every permit record in The Dalles, A to Z
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- Every permit record in Oregon, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.