Clean Water Act discharge permit · NPDES WA0044784
KENNEWICK POTW, Kennewick, WA: NPDES WA0044784 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
KENNEWICK POTW, held by City of Kennewick, holds NPDES permit WA0044784. EPA’s file records it issued February 20, 2018 and expiring March 31, 2023. 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 | KENNEWICK POTW |
|---|---|
| Permittee as filed | City of Kennewick |
| NPDES ID | WA0044784 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 20, 2018 |
| Expiration date | March 31, 2023 |
| Issuing agency | State |
| Address | Kennewick, WA 99336 |
| Subwatershed | City of Kennewick-Columbia River (HUC 170200160604) |
| Program components on file | POTW, Pretreatment |
| 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
- 7Pollutants on file
- 0Under a numeric limit
- 7With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Flow | 0 | 116 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 87 | 0 | ||
| Solids, total suspended | 0 | 87 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 29 | 0 | ||
| pH | 0 | 29 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 29 | 0 | ||
| Coliform, fecal general | 0 | 29 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WA0044784.
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 WA0044784.
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.
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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 WA0044784 there.
Nearby on the register
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- Every permit record in Washington, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.