Clean Water Act discharge permit · NPDES OR0020877
WARRENTON, CITY OF STP, Warrenton, OR: NPDES OR0020877 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
WARRENTON, CITY OF STP, held by WARRENTON, CITY OF, holds NPDES permit OR0020877, which discharges to Columbia River. EPA’s file records it issued June 4, 2013 and expiring December 31, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | WARRENTON, CITY OF STP |
|---|---|
| Permittee as filed | WARRENTON, CITY OF |
| NPDES ID | OR0020877 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 4, 2013 |
| Expiration date | December 31, 2017 |
| Address | Warrenton, OR 97146 |
| Receiving water | COLUMBIA RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Skipanon River-Frontal Columbia River (HUC 170800060208) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 14Pollutants on file
- 14Under a numeric limit
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 11 | 7 | 7 | February 28, 2021 | 23% over the limit |
| Coliform, fecal - % samples exceeding limit | 1 | 1 | 1 | May 31, 2020 | 40% over the limit |
| Coliform, fecal general | 1 | 1 | 1 | December 31, 2020 | 6% over the limit |
| Solids, suspended percent removal | 1 | 1 | 1 | January 31, 2021 | 10% over the limit |
| BOD, 5-day, 20 deg. C | 11 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Excess thermal load | 2 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 1 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Enterococci | 1 | 0 | 0 | ||
| Ultraviolet light dosage | 1 | 0 | 0 | ||
| BOD, 5-day, percent removal | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 21, 2024 | WW SSO - Discharge to Waters | ST6 |
| January 1, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| March 8, 2017 | Effluent Violations - Numeric effluent violation | 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, OR0020877.
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 OR0020877 there.
Nearby on the register
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- Every permit record in Warrenton, A to Z
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- Every permit record in Oregon, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.