Protecting Oregon's Environment
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Oregon Department of Environmental Quality

Water Quality

Onsite Wastewater Management Program (Septic Systems) 

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Approved Onsite Wastewater Treatment Products and Product Approval

Tanks and Distribution Units

Only those tank sizes and configurations that are listed on the List of Approved Tanks and Distribution Units are approved for installation currently.

The Department will conduct one review per tank application to determine compliance with the applicable rules. After review, tank plans and installation manuals requiring correction will be returned to the manufacturer and engineer. All application materials returned for correction must be re-submitted to the Department within 60 days of notification. If there is a failure to correct all noted deficiencies and/or the information requested is not submitted within 60 days it will result in a new application fee assessment to continue the approval process.

Drainfield Products


EZ Flow


ICC Flowtech

Alternative Treatment Technology Products

New or Innovative Technologies, Materials, or Designs for Onsite Systems

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For more information about DEQ's Onsite Wastewater Management Program contact Lisa MacGregor by phone at 541-686-7905 or by email.

Oregon Department of Environmental Quality
Headquarters: 700 NE Multnomah Street, Suite 600, Portland, OR 97232
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

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