Clean Water Act discharge permit · NPDES WA0052426
PORT OF SUNNYSIDE IWWTF, Sunnyside, WA: NPDES WA0052426 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
PORT OF SUNNYSIDE IWWTF, held by Port of Sunnyside, holds NPDES permit WA0052426. EPA’s file records it issued August 29, 2014 and expiring August 31, 2019. 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 | PORT OF SUNNYSIDE IWWTF |
|---|---|
| Permittee as filed | Port of Sunnyside |
| NPDES ID | WA0052426 |
| 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 | August 29, 2014 |
| Expiration date | August 31, 2019 |
| Issuing agency | State |
| Address | Sunnyside, WA 98944 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Sulphur Creek Wasteway (HUC 170300030906) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 0Under a numeric limit
- 24With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 0 | 278 | 16 | October 31, 2023 | 109% over the limit |
| Solids, total suspended | 0 | 43 | 8 | January 31, 2025 | 124% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 125 | 5 | January 31, 2024 | 744% over the limit |
| Nitrogen, nitrate total [as N] | 0 | 44 | 3 | December 31, 2023 | 83% over the limit |
| Flow | 0 | 764 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 691 | 0 | ||
| Chloride [as Cl] | 0 | 606 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 516 | 0 | ||
| Solids, total dissolved | 0 | 516 | 0 | ||
| Nitrogen, Kjeldahl Total | 0 | 288 | 0 | ||
| Solids, fixed dissolved | 0 | 226 | 0 | ||
| pH | 0 | 151 | 0 | ||
| Nitrogen, total [as N] | 0 | 139 | 0 | ||
| Nitrogen, total | 0 | 73 | 0 | ||
| BOD, percent removal [total] | 0 | 43 | 0 | ||
| Temperature, water deg. centigrade | 0 | 11 | 0 | ||
| Conductivity | 0 | 5 | 0 | ||
| Iron, ferrous - present | 0 | 5 | 0 | ||
| Coliform, fecal general | 0 | 5 | 0 | ||
| Alkalinity, total [as CaCO3] | 0 | 4 | 0 | ||
| Solids, total fixed | 0 | 4 | 0 | ||
| Sulfate, total [as SO4] | 0 | 4 | 0 | ||
| Depth to water level ft below landsurface | 0 | 4 | 0 | ||
| BOD, 5-day, dissolved | 0 | 2 | 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 WA0052426.
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 WA0052426 there.
Nearby on the register
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- Every permit record in Sunnyside, A to Z
- Discharge permits in Washington
- Every permit record in Washington, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.