Columbia County Courthouse

230 Strand Street, St. Helens, OR 97051 • Phone: (503) 397-7210 • Toll Free: (888) 397-7210

Columbia County

On-Site Program

Erin O'Connell, Environmental Services Specialist

On-Site Waste Water Program

  • Conducts site evaluations and permitting for on-site sewage systems serving development within those areas of the County without urban sewer service.
  • Administers the Oregon State Sub-Surface Disposal Laws issued by the State Department of Environmental Quality.
  • Department of Environmental Quality - On-Site Program


On-Site Application Guides/Forms


On-Site Fees