Directions
Detailed driving directions on how to get to the septage treatment facility at South Treatment Plant.
Directions from I-5
- Take Exit 154 to I-405 North.
 - Take Exit 1 (Tukwila/West Valley).
 - At light, turn left onto Interurban Avenue S.
 - Turn right onto S.W. Grady Way.
 - Continue on S.W. Grady Way and turn onto Longacres Drive S.W.
 - Turn right onto Jackson Place S.W./Monster Road S.W.
 - See map for septage disposal directions
 
Directions from southbound I-405
- Take Exit 1 (Tukwila/West Valley).
 - At light, turn right onto Interurban Avenue S.
 - Turn left onto S.W. Grady Way.
 - Continue on S.W. Grady Way and turn onto Longacres Drive S.W.
 - Turn right onto Jackson Place S.W./Monster Road S.W.
 - See map for septage disposal directions
 
            
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