Oregon Graywater Regulations
Oregon Administrative Rules §340-053, Updated 2011
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Integrated Water Resource Managment
Oregon’s graywater regulations define three types of graywater based on level of treatment, and identify specific beneficial purposes for each type of graywater. The rules also establish treatment and monitoring requirements, setbacks, access and exposure controls, and site management practices necessary to protect public health and the environment. The Oregon Department of Environmental Quality regulates graywater reuse and disposal systems under Oregon Administrative Rules Chapter 340, Division 53.