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Facility Summary: King Cnty South Treatment Plant Close Window

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Facility Information

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

Permits as of 8/19/2026 - 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
(Active)Municipal NPDES IP 7 8/1/20157/30/2020
(Active)Reclaimed 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
(Active)Industrial SW GP 7 1/1/202512/31/2029
Permit NumberViolations/TriggersInspectionsEnforcements
BS0000035
0
0
0
SO3002511
5
0
0
ST0007445
36
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.

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Most Recent Interactions (Enforcements, Inspections and Submittals)

Data TypeAction DateDescription
Submittal5/7/2026Permit
Submittal1/22/2026Permit
Submittal5/13/2025Permit
Submittal2/25/2025Permit
Submittal6/28/2024Permit
Enforcement5/22/2012No enforcement action necessary
Inspection6/29/2010Compliance Inspection-Without Sampling
Inspection5/25/2010Compliance Inspection-Without Sampling

Facility Documents

Click on the document name to download and open the document.
Permit NumberPermit VersionDocument TypePermit StatusIssued DatePermit TypeDocument NamePublic Notice DateInfo
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 6/26/2026Reporting Permit Violations - Written Report Received: 06/26/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 6/26/2026Reporting Permit Violations - Written Report Received: 06/26/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 6/26/2026Reporting Permit Violations - Written Report Received: 06/26/2026
WA00295817Ecology CommunicationActive7/1/2015Municipal NPDES IP   
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 5/29/2026Other Received: 05/29/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 5/29/2026Other Received: 05/29/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 5/28/2026Other Received: 05/29/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 5/28/2026Other Received: 05/29/2026
ST00074453Permit SubmittalsActive7/1/2015Reclaimed Water IP 5/28/2026Other Received: 05/29/2026
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
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