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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 WQ Info Guides:
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Rules and Regulations

These rules establish requirements for the construction, alteration, repair, operation, and maintenance of onsite wastewater treatment systems. Their purpose is to restore and maintain the quality of public waters and to protect the public health and general welfare of the people of the State of Oregon.

Oregon Administrative Rules - Chapter 340

 Division 71 - Onsite Wastewater Treatment Systems

 Division 73 - Construction Standards

Oregon Revised Statutes

[print version]

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: 811 SW Sixth Ave., Portland, OR 97204-1390
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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