Clean Water Act discharge permit · NPDES WA0029581
KING COUNTY SOUTH WWTP, Renton, WA: NPDES WA0029581 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
KING COUNTY SOUTH WWTP, held by King County Wastewater Treatment Division, holds NPDES permit WA0029581. EPA’s file records it issued July 1, 2015 and expiring July 30, 2020. 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 | KING COUNTY SOUTH WWTP |
|---|---|
| Permittee as filed | King County Wastewater Treatment Division |
| NPDES ID | WA0029581 |
| 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 | July 1, 2015 |
| Expiration date | July 30, 2020 |
| Issuing agency | State |
| Address | Renton, WA 98057 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Green River (HUC 171100130305) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 0Under a numeric limit
- 10With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 0 | 73 | 7 | March 31, 2026 | 99,999% over the limit |
| Flow | 0 | 147 | 1 | June 30, 2020 | 216% over the limit |
| Solids, total suspended | 0 | 67 | 1 | June 30, 2013 | 1,680% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 1 | 1 | June 30, 2013 | 190% over the limit |
| Turbidity | 0 | 160 | 0 | ||
| Duration | 0 | 66 | 0 | ||
| Chlorine, total residual | 0 | 66 | 0 | ||
| pH, maximum | 0 | 66 | 0 | ||
| pH, minimum | 0 | 66 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 0 | 66 | 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 |
|---|---|---|
| July 18, 2019 | Effluent Violations - Narrative Effluent Violation | ST6 |
| July 18, 2019 | Reporting Violations - Failure to Notify | 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.
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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 WA0029581 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.