The Tri-City Water Quality Lab performs hundreds of tests per month on samples collected from the wastewater treatment plant to ensure that the treated water discharged into the Willamette River meet all requirements for environmental safety.
The Tri-City Source Control program requires that industries discharging excessive pollutants treat their wastewater before releasing it into municipal sewer systems.
The regulatory program provides the interface between the Tri-City Service District (TCSD) operating programs and State and Federal regulators.
Oregon City Residents
West Linn Residents