Alteration Permit

Getting Started

An application for alteration of an existing on-site sewage disposal system (alteration permit) requires a sanitation installation permit
You must be both the owner and occupant of the house in order to do the work yourself. This work may not be done on a dwelling that is now or will be for sale, lease, rent or exchange in the near future
For other residential or commercial properties, a licensed State of Oregon, Department of Environmental Quality (DEQ) installer has to do the installation
If you have any questions, please call the Environmental Soils Section at (503) 823-6892
Note there is also a Department of Environmental Quality (DEQ) surcharge is to be paid along with the fee

Applying For My Permit

Along with the completed permit application, the following items are needed:

Land Use Compatibility Statement from Multnomah County
Scaled legible site plan showing all existing structures, existing and proposed repair septic system and private well (if applicable)
Detailed floor plan

Bring your application, related materials and fee including the DEQ surcharge to the Development Services Center for processing.

Plan Review Process

Plan review for an alteration permit usually takes 21 working days if the application is complete.

The Bureau of Development Services review groups that will review the alteration permit application are:

Planning and Zoning
Addressing
Sanitarian Review
Plumbing Review

The approved permit will be mailed to the applicant. The permit must be posted on the job site.
If the application is incomplete, you will be notified by Environmental Soils staff and asked to submit the necessary corrections
After the corrections are received, your application will be reviewed again

Inspections

When you receive the permit, you may call to schedule an inspection at (503) 823-7000

For more information, call Sanitation Inspections at (503) 823-6892

Applications & Handouts

Sanitation Installation Permit Application