Olympus Terrace Sewer District

Map & Directions:
Wastewater Treatment Plant

The Wastewater Treatment Plant is located at 9417 62^nd Pl. W, Mukilteo, Washington.
If you have any questions about the map or directions, please call 425-353-6000.

If you are southbound on Mukilteo Speedway

Turn right (west) onto 92^nd St SW. At the “Y” (92^nd and 61^st Pl W) stay to the left, and you will still be on 92^nd St SW. Take a left onto 62^nd Pl W. Take a left onto 95^nd Pl SW. You will see the metal gate on your right. This is the top of the one lane, winding road leading to the treatment plant. When you reach the treatment plant, there will be a pedestal on your left. Ring the call button. If there is no answer, honk your horn.

If you are northbound on Mukilteo Speedway

Turn left (west) onto 92^nd St SW. At the “Y” (92^nd and 61^st Pl W) stay to the left, and you will still be on 92^nd St SW. Take a left onto 62^nd Pl W. Take a left onto 95^th Pl SW. You will see the metal gate on your right. This is the top of the one lane, winding road leading to the treatment plant. When you reach the treatment plant, there will be a pedestal on your left. Ring the call button. If there is no answer, honk your horn.

If you are southbound on I-5

Merge onto highway 526 W via exit #189 (Mukilteo/Whidbey Island Ferry). Drive approximately 4.4 miles to 84th St SW. Turn right onto 84th St. Turn left onto Mukilteo Speedway (2nd traffic light). Turn right onto 92^nd St SW. At the “Y” (92^nd and 61^st Pl W) stay to the left, and you will still be on 92^nd St SW. Take a left onto 62^nd Pl W. Take a left onto 95^th Pl SW. You will see the metal gate on your right. This is the top of the one lane, winding road leading to the treatment plant. When you reach the treatment plant, there will be a pedestal on your left. Ring the call button. If there is no answer, honk your horn.

If you are northbound on I-5

Merge onto highway 525 N via exit #182 (Alderwood Mall Pkwy). Drive approximately 6.7 miles, to 92^nd St SW. Turn left onto 92^nd St SW. At the “Y” (92^nd and 61^st Pl W) stay to the left, and you will still be on 92^nd St SW. Take a left onto 62^nd Pl W. Take a left onto 95^th Pl SW. You will see the metal gate on your right. This is the top of the one lane, winding road leading to the treatment plant. When you reach the treatment plant, there will be a pedestal on your left. Ring the call button. If there is no answer, honk your horn.

If you are westbound on Highway 526 (Boeing Freeway)

Drive west to 84th St SW. Turn right onto 84th St. Turn left onto Mukilteo Speedway (two traffic lights). Turn right onto 92^nd St SW. At the “Y” (92^nd and 61^st Pl W) stay to the left, and you will still be on 92^nd St SW. Take a left onto 62^nd Pl W. Take a left onto 95^th Pl SW. You will see the metal gate on your right. This is the top of the one lane, winding road leading to the treatment plant. When you reach the treatment plant, there will be a pedestal on your left. Ring the call button. If there is no answer, honk your horn.