OAR 340-051-0020: Construction, Operation and Maintenance Requirements

All waste water control facilities and confined animal feeding operations must be designed, constructed, maintained, and operated in accordance with the following: (1) All confinement areas, manure handling and accumulation areas and disposal areas and facilities must be located, constructed, and operated such that manure, contaminated drainage waters or other wastes do not enter the waters of the state at any time, except as may be permitted by the conditions of a specific waste discharge permit issued in accordance with ORS 468B.050. (2) Unless it can be demonstrated that contaminated drainage can be effectively controlled by other means, or unless a specific written variance is obtained from the Department as provided in OAR 340-051-0025, the design, construction, operation, and maintenance of confined animal feeding operations and waste water control facilities must be in conformance with “Guidelines for the Design and Operation of Animal Waste Water Control Facilities.” (OAR 340-051-0050 through 340-051-0080)