Clean Water Act discharge permit · NPDES OR0022551
LAFAYETTE STP, Lafayette, OR: NPDES OR0022551 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
LAFAYETTE STP, held by LAFAYETTE, CITY OF, holds NPDES permit OR0022551, which discharges to Yamhill River. EPA’s file records it issued September 30, 2020 and expiring August 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LAFAYETTE STP |
|---|---|
| Permittee as filed | LAFAYETTE, CITY OF |
| NPDES ID | OR0022551 |
| 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 | September 30, 2020 |
| Expiration date | August 31, 2025 |
| Address | Lafayette, OR 97127 |
| Receiving water | YAMHILL RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Hawn Creek-Yamhill River (HUC 170900080703) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 21Under a numeric limit
- 15With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 11 | 45 | 22 | July 31, 2025 | 593% over the limit |
| Solids, total suspended | 11 | 48 | 21 | August 31, 2023 | 557% over the limit |
| Phosphorus, total [as P] | 9 | 22 | 11 | August 31, 2023 | 726% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 17 | 7 | August 31, 2022 | 156% over the limit |
| Excess thermal load | 1 | 10 | 7 | September 30, 2025 | 41% over the limit |
| BOD, 5-day, percent removal | 1 | 6 | 2 | July 31, 2022 | 113% over the limit |
| E. coli | 4 | 16 | 1 | August 31, 2020 | 496% over the limit |
| Solids, suspended percent removal | 1 | 5 | 1 | October 31, 2019 | 124% over the limit |
| pH | 5 | 12 | 0 | ||
| Temperature, water deg. centigrade | 4 | 10 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Alkalinity, total [as CaCO3] | 2 | 3 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Ultraviolet light dosage | 1 | 1 | 0 | ||
| Solids, total dissolved | 1 | 1 | 0 | ||
| Flow rate | 1 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Ultraviolet light intensity | 1 | 0 | 0 | ||
| Ultraviolet light transmittance | 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
- 7Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 3, 2023 | Effluent Violations - Unauthorized Discharge | ST6 |
| December 1, 2020 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| January 1, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| January 1, 2018 | Effluent Violations - Numeric effluent violation | ST6 |
| January 1, 2018 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| January 1, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| January 1, 2018 | Permit Violations - Unapproved Operation | 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, OR0022551.
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How we handle your data → Privacy
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 OR0022551 there.
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- Every permit record in Oregon, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.