OAR 340-071-0335: Cesspools and Seepage Pits

(1) A person may not construct new cesspool sewage disposal systems in Oregon. (2) Seepage pit sewage disposal systems may be used only to serve existing sewage loads and replace existing failing seepage pit and cesspool systems on lots that are too small to accommodate a standard system or other alternative onsite system. (3) Construction requirements. (a) Each seepage pit must be installed in a location to facilitate future connection to a sewerage system when such facilities become available. (b) Maximum depth of seepage pits is 35 feet below ground surface. (c) The seepage pit depth must terminate at least 4 feet above the water table. (4) Notwithstanding the permit duration specified in OAR 340-071-0160(5), a permit issued under this rule may be effective for a period of less than one year from the date of issue if specified by the agent.