OAR 340-044-0013: Exclusions from Underground Injection Control Regulations

The following injection activities are not covered by OAR 340-044: (1) Single family residential septic systems and cesspools; or non-residential septic systems and cesspools handling only human sanitary wastes and designed to serve less than 20 people per day or with a design flow of less than 2,500 gallons per day. Such systems are still subject to the requirements of OAR 340-071. This exclusion does not apply to sewage drain holes or drill holes. (2) Injection for the purpose of storing hydrocarbons that are gases at standard pressure and temperature. (3) Any dug, blasted or drilled hole or bored shaft that is not used for the subsurface emplacement of fluids.