Facility Summary

King Cnty South Treatment Plant

Facility Name:
King Cnty South Treatment Plant
Address:
1200 MONSTER RD SW
City:
RENTON
County:
King


Permits as of 5/19/2026 - Bold Records Indicate Active Permits
Click the version number to view the permit documents associated with the permit.
Permit NumberTypeVersionEffective DateExpiration Date
ST0007445Reclaimed Water IP 4   
WA0029581Municipal NPDES IP 8   
WA0029581Municipal NPDES IP 1 3/15/19823/12/1987
WA0029581Municipal NPDES IP 2 6/12/19876/10/1992
BS0000035Municipal NPDES IP 1 1/1/19931/1/1998
WA0029581Municipal NPDES IP 3 3/31/19933/31/1997
SO3002511Industrial SW GP 1 12/26/199511/18/2000
WA0029581Municipal NPDES IP 4 7/15/19976/30/2002
SO3002511Industrial SW GP 2 11/18/200011/18/2005
SO3002511Industrial SW GP 3 9/20/20025/31/2008
WA0029581Municipal NPDES IP 5 10/1/20049/30/2009
ST0007445Municipal to ground SWDP IP 1 10/1/20049/30/2009
ST0007445Reclaimed Water IP 2 11/1/200910/31/2014
WA0029581Municipal NPDES IP 6 11/1/200910/31/2014
WAR002511Industrial SW GP 4 1/1/201012/31/2014
WAR002511Industrial SW GP 5 1/1/201512/31/2019
WA0029581Municipal NPDES IP 7 8/1/20157/30/2020
ST0007445Reclaimed Water IP 3 8/1/20157/31/2020
WAR002511Industrial SW GP 6 1/1/202012/31/2024
WAG994573Puget Sound Nutrient GP 1 4/1/202212/31/2026
WAR002511Industrial SW GP 7 1/1/202512/31/2029
Permit NumberViolations/TriggersInspectionsEnforcements
BS0000035
0
0
0
SO3002511
5
0
0
ST0007445
35
4
29
WA0029581
295
33
41
WAG994573
0
1
0
WAR002511
12
2
1
These counts represent "all time". Click to view the details of these values. Links will show only active permits by default.
-Feature Active -Feature Inactive -Facility -Facility
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Most Recent Interactions (Enforcements, Inspections and Submittals)
Data TypeAction DateDescription
Submittal10/11/2001Permit
Submittal9/11/1996Permit
Facility Documents
Click on the document name to download and open the document.
Permit NumberPermit VersionDocument TypePermit StatusIssued DatePermit TypeDocument NamePublic Notice DateInfo
WAR0025117Permit SubmittalsActive12/1/2024Industrial SW GP 5/7/2026Stormwater Monitoring Report Received: 05/07/2026
WAR0025117Permit SubmittalsActive12/1/2024Industrial SW GP 5/7/2026Stormwater Monitoring Report Received: 05/07/2026
WA00295817Ecology CommunicationActive7/1/2015Municipal NPDES IP   
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 2/12/2026Reporting Permit Violations - Written Report Received: 02/12/2026
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 2/12/2026Reporting Permit Violations - Written Report Received: 02/12/2026
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 2/12/2026Reporting Permit Violations - Written Report Received: 02/12/2026
WAG9945731Ecology CommunicationInactive12/1/2021Puget Sound Nutrient GP  Termination/revocation request
WAR0025117Permit SubmittalsActive12/1/2024Industrial SW GP 1/22/2026Other Received: 01/22/2026
WAR0025117Permit SubmittalsActive12/1/2024Industrial SW GP 1/22/2026Other Received: 01/22/2026
WA00295817Ecology CommunicationActive7/1/2015Municipal NPDES IP   
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 10/27/2025Reporting Permit Violations - Written Report Received: 10/27/2025
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 10/27/2025Reporting Permit Violations - Written Report Received: 10/27/2025
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 10/27/2025Reporting Permit Violations - Written Report Received: 10/27/2025
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 8/4/2025Reporting Permit Violations - Written Report Received: 08/04/2025
WA00295817Permit SubmittalsActive7/1/2015Municipal NPDES IP 8/4/2025Reporting Permit Violations - Written Report Received: 08/04/2025
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