Clean Water Act discharge permit · NPDES OR0001635
COLUMBIA RIVER NITROGEN LLC, St Helens, OR: NPDES OR0001635 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
COLUMBIA RIVER NITROGEN LLC, held by Columbia River Nitrogen LLC, holds NPDES permit OR0001635, which discharges to Columbia River. EPA’s file records it issued February 5, 2019 and expiring January 31, 2024. 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 | COLUMBIA RIVER NITROGEN LLC |
|---|---|
| Permittee as filed | Columbia River Nitrogen LLC |
| NPDES ID | OR0001635 |
| 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 | February 5, 2019 |
| Expiration date | January 31, 2024 |
| Address | St Helens, OR 97051 |
| Receiving water | COLUMBIA RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Deer Island Slough-Frontal Columbia River (HUC 170800030201) |
| Other EPA IDs (FRS) | RCRA handler ORD063428403 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 15Pollutants on file
- 14Under a numeric limit
- 6With a violation of any kind
- 3With 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, settleable | 0 | 7 | 7 | January 31, 2012 | 1,900% over the limit |
| pH, minimum | 2 | 2 | 2 | August 31, 2019 | |
| pH range excursions, > 60 minutes | 1 | 1 | 1 | August 31, 2019 | 2,147,483,650% over the limit |
| Nitrogen, organic total [as N] | 4 | 6 | 0 | ||
| Temperature, water deg. centigrade | 3 | 4 | 0 | ||
| Oil & Grease | 2 | 1 | 0 | ||
| Excess thermal load | 6 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 0 | 0 | ||
| Nitrogen, nitrate total [as N] | 4 | 0 | 0 | ||
| Chlorine, total residual | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 0 | 0 | ||
| pH, maximum | 2 | 0 | 0 | ||
| Report due [yrmoda] | 2 | 0 | 0 | ||
| Temperature Increase Deg. C | 1 | 0 | 0 | ||
| pH range excursions, monthly total accum | 1 | 0 | 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 OR0001635.
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, OR0001635.
Start the watch
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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 OR0001635 there.
Nearby on the register
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- Every permit record in Oregon, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.