Clean Water Act discharge permit · NPDES OR0026395
PENDLETON STP, Pendleton, OR: NPDES OR0026395 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
PENDLETON STP, held by PENDLETON, CITY OF, holds NPDES permit OR0026395, which discharges to Mckay Creek, At Its Mouth. EPA’s file records it issued February 3, 2005 and expiring January 31, 2010. 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 | PENDLETON STP |
|---|---|
| Permittee as filed | PENDLETON, CITY OF |
| NPDES ID | OR0026395 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 3, 2005 |
| Expiration date | January 31, 2010 |
| Address | Pendleton, OR 97801 |
| Receiving water | MCKAY CREEK, AT ITS MOUTH |
| Subwatershed | Upper Stage Gulch (HUC 170701030802) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 10With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 16 | 64 | 57 | September 30, 2025 | 1,500% over the limit |
| Chlorine, total residual | 8 | 15 | 14 | October 31, 2025 | 663% over the limit |
| E. coli | 4 | 40 | 11 | September 30, 2021 | 1,336% over the limit |
| BOD, 5-day, 20 deg. C | 12 | 50 | 5 | May 31, 2011 | 70% over the limit |
| Solids, total suspended | 12 | 68 | 3 | May 31, 2013 | 623% over the limit |
| Solids, suspended percent removal | 1 | 50 | 0 | ||
| BOD, 5-day, percent removal | 1 | 45 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 18 | 0 | ||
| Chlorine usage | 1 | 2 | 0 | ||
| Temperature, water deg. centigrade | 1 | 1 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Report due [yrmoda] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 6, 2024 | Management Practice Violations - Best Management Practice Deficiencies | ST6 |
| July 1, 2020 | Reporting Violations - Failure to Submit DMRs | 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
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, OR0026395.
Start the watch
- One permit holder — $99/month
- 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 OR0026395 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.