Services Departments Government

Sanitary Sewer

Agreements:

Clackamas County Service District No. 1 Sanitary Sewer Master Plan Executive Summary
If you require a complete copy with Attachments and Appendices they are available on CD at a cost of $10 by contacting Lana Rulien (503-742-4592) or by email lanar@co.clackamas.or.us.

Water Environment Services (WES) provides wastewater management services to more than 150,000 people in two districts in Clackamas County: the Tri-City Service District (TCSD) and Clackamas County Service District No. 1 (CCSD#1).

Once the wastewater drains from the sink, tub, washing machine or is flushed down the toilet it goes through a network of below-ground pipes. WES operates and maintains 18 pump station and more than 250 miles of gravity sanitary sewer pipelines, which are part of the system that brings wastewater to the facilities 24 hours a day.

These pipes transport the wastewater to treatment plants where it is cleansed of pollutants before it is released back into the rivers. The wastewater treatment plants operate every day, around the clock. As a result of this treatment process, public health and water quality are preserved and protected.

Wastewater Treatment Facilities

WES collects and cleans more than 6 billion gallons of wastewater annually before releasing it to local rivers. WES also recycles over 21 million gallons annually of biosolids from the five wastewater treatment facilities, and monitors over 43 permitted industrial users to test and monitor their discharge.

Boring Water Pollution Control Plant
Location: 13305 SE Richey Road, Boring
Service area: Boring
Population served: 60 commercial and residential connections
Start up: 1986
Design capacity: 0.020 million gallons per day
Average yearly flow: 0.018 million gallons per day
Major Processes: Facultative lagoon, secondary treatment, low-head sand filter, tertiary treatment, chlorine disinfection

Fischer's Forest Park Water Pollution Control Facility
Location: S. Merry Meadow Ct., Oregon City (Redland)
Service area: Fischer's Forest Park subdivision
Population served: 26 single family residences
Start up: 1971
Design capacity: 10,400 gallons per day
Average yearly flow: Not applicable. This facility does not discharge to surface water
Major Processes: Septic tank, recirculating gravel filter, sub-surface discharge by gravity drain field

Hoodland Water Pollution Control Plant
Location: 24596 E. Bright Avenue, Welches
Service area: Hoodland, Welches and the Wemme Recreational Corridor
Population served: 4,000
Start up: 1982
Design capacity: 0.9 million gallons per day
Average yearly flow: 0.345 million gallons per day
Major Processes: Rotating biological contactor, secondary treatment, aerobic digestion, chlorine disinfection

Tri-City Water Pollution Control Plant 
Location: 15941 S. Agnes Avenue, Oregon City
Service area: Gladstone, Oregon City and West Linn; diversions from CCSD #1 
Population served: 72,000 (Tri-City Service District); 26,000 CCSD #1
Start up: May 1986
Expansion: 2010
Original design capacity: 8.4 million gallons per day (dry weather flow) 
Expansion capacity: 11.9 million gallons per day (dry weather flow)
Average flow: 7.85 million gallons per day
Major Processes: Activated sludge, secondary treatment, anaerobic digestion, chlorine disinfection; membrane bioreactor, UV disinfection

Kellogg Creek Water Pollution Control Plant (serves the North Clackamas Urban area, and the cities of Happy Valley, Johnson City and Milwaukie)
Location: 11525 SE McLoughlin Blvd., Milwaukie
Service area: Clackamas County Service District No. 1, Milwaukie and Johnson City
Population served: 77,800
Start up: August 1974
Design capacity: 10.0 million gallons per day
Average flow: 8.02 million gallons per day (dry weather)
Major Processes: Activated sludge, secondary treatment, anaerobic digestion, ultra violet disinfection.

Share this page

Development Services Building

Contact Us

Water Environment Services
150 Beavercreek Rd. Oregon City, OR 97045
map

(503) 742-4567

Monday - Thursday 7:30 am - 5:30 pm