This activity accounts for all costs involved in the operation and maintenance of the sewer collection system. The City's sewer collection system is composed of gravity sewer lines, pump stations, and forcemains encompassing over 16 miles of pipeline. The original sewer system was designed to be a septic tank effluent system with small diameter mainlines laid at a minimum depth of 4-feet and at shallower grades than is typically used for sewers that receive direct flow. Some areas of town do not have septic tanks and are serviced by direct flow of the sewage to the collection system.
All wastewater is pumped to the City of St. Helens for treatment via a 6-inch diameter forcemain. The “K” Street and River Club Estates (RCE) pump stations are connected to this line. The Pixie Park and Forest Park pump stations pump flows from lower elevations to points in the system where it then flows by gravity to the RCE pump station.
There are currently 834 sewer connections. Of the total connections, 354 are direct flow into the sewer collection system, while the remaining 480 share 462 septic tanks. There are also 23 City-maintained small sewer pumps to overcome elevation problems. The City is responsible for the maintenance, replacement and pumping of the septic tanks connected to the system, as well as the small pumps that were in place when the City's sewer system was constructed, except in certain cases where property owners have refused to provide the City with easements for maintenance purposes.
The Sewer Collection Maintenance Department is funded entirely by sewer usage charges, connection fees, and other miscellaneous sources.
The Sewer Department is staffed by the Public Works Superintendent, Micah Rogers and three Utility Workers. The Public Works Superintendent is responsible for overseeing the day-to-day operations and the development of the City sewer system, and for supervising the sewer system maintenance staff. The department can be reached by calling (503) 366-0454, or faxing to (503) 366-2870. Their mailing address is PO Box 189, Columbia City, OR 97018. You can also contact them directly through the online contact form. The City Shop is located at 1755 Second Place.
Current Rates and General Regulations for Water and Sewer Services - Last revision to information was July 2020.
DEPARTMENT ACCOMPLISHMENTS IN 2017-18:
• Completed routine septic tank inspection and pumping services.
• Completed routine inspection and servicing on the City-owned residential sewer pumps.
• Assisted in the development, design and implementation of the K Street Pump Improvement Project.
• Installed five new service connections for construction.
• Installed two new lift station pumps.
DEPARTMENT OBJECTIVES FOR 2018-19:
City of Columbia City • P.O. Box 189 • 1840 Second Street • Columbia City, OR 97018 • (503) 397-4010 • Contact Us