Residential

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

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