OAR 629-620-0300: Locations of Mixing, Transfer, and Staging Areas for Chemicals and Other Petroleum Products

(1) Operators shall conduct the following activities only in locations where spillage of chemicals or other petroleum products will not enter the waters of the state: (a) Mixing chemicals; (b) Transferring chemicals or other petroleum products between equipment or containers including, but not limited to, fueling of aircraft or heavy equipment; (c) Cleaning tanks or equipment used during chemical applications; (d) Landing and staging aircraft. (2) Notwithstanding section (1), operators shall not locate chemical mixing and staging areas for aerial chemical applications within 100 feet of Type F, Type SSBT or Type D streams.