Oregon Greywater Compliance Guide
📋 Oregon State-Level Regulations
Oregon has established greywater regulations through the Oregon Plumbing Specialty Code (OPSC).
Oregon Plumbing Specialty Code (OPSC) - Chapter 15
Allowance: Greywater systems are permitted for residential use
Applies to: Residential properties
Restrictions: Systems must meet specific design and installation requirements
⚠️ Professional installation and plumbing permit required
Key Requirements
• Greywater systems must be installed by licensed plumbers
• Permit required from local building department
• Systems must be designed to prevent ponding and runoff
• Subsurface irrigation required (no surface application)
• Cannot be used for vegetables or root crops that will be consumed
Multnomah County (Portland Area)
Jurisdiction
Multnomah County follows Oregon state greywater regulations. Contact the local building department for permit requirements and installation guidelines.
Contact Information
Portland Bureau of Development Services
portland.gov/bds
portland.gov/bds
Washington County
Jurisdiction
Washington County follows Oregon state greywater regulations. Contact the county building department for specific requirements.
Lane County (Eugene Area)
Jurisdiction
Lane County follows Oregon state greywater regulations. Check with local building officials for permit applications.
⚠️ Important Notice
This information is current as of 2024 but regulations may change. Always verify current requirements with your local building department before installing a greywater system. Professional installation is required in Oregon.
This information is current as of 2024 but regulations may change. Always verify current requirements with your local building department before installing a greywater system. Professional installation is required in Oregon.