- A small section map or title insurance map for property identification
- Scaled, legible site plan showing all existing and proposed structures, existing septic system and private well (if applicable)
- Detailed floor plan
- If the property has a land feasibility study, please include a copy with the application and materials
Bring the completed applications, related materials and fees to the Development Services Center for processing.
Once the application and materials are reviewed, Environmental Soils staff will notify you if a site visit or an authorization notice is required.
Upon approval, the original certification form and materials will be mailed to the applicant to be submitted to the Multnomah County Land Use & Transportation Program located at 1600 SE 190th Avenue, Portland, OR.
Please call the Environmental Soils staff at (503) 823-6892 or Multnomah County Land Use & Transportation Program at (503) 988-3043 with any questions.