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For more information about the DNRP Septage Disposal Program, please contact Chris Tinnin, Septage Coordinator

Wastewater Treatment Division 
South Plant Treatment Facility
1200 Monster Road S.W.
Renton, WA 98057

Get Directions to our plant location in Renton, Washington

King County DNRP septage program

South Plant Septic Program
In 2008, we accepted about 
19.8 million gallons of septage.

The Department of Natural Resources and Parks (DNRP) Septage Disposal Program operates at the South Treatment Plant in Renton, WA.

Program quick facts

  • Our septage facility is open 24 hours/day, 365 days/year. 
  • Our convenient facilities allow room for four trucks to dump at a single time.
  • The pad is sloped to facilitate better draining from each truck.
  • We have rinse water for cleaning out a truck.
  • Amenities at our site include a restroom and hand washing station for truck operators.

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