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