On-site wastewater program

Columbia County regulates the installation, repair and maintenance of septic systems for homes and businesses not served by community sewer systems.

The Onsite Wastewater program is managed by the county's Public Health Department. 

Septic and onsite wastewater treatment systems must be designed, installed and maintained to protect:

  • the groundwater aquifer and surface waters from pathogen and nitrogen contamination
  • public health by properly treating and disposing of disease-causing human waste.

Our services include:

More information:

Contact: onsite@columbiacountyor.gov

Public Health Quick Links
230 Strand St.
Columbia County Courthouse Annex
St. Helens,
Fax: 888-204-8568

Monday - Friday
8:30 a.m. to 5:00
Michael Paul