OAR 340-051-0075: Guidelines for the Design and Operation of Animal Waste Control Facilities: Incidental Control Practices

(1) The application of manure or manure slurry to land areas should be accomplished when air movements is least likely to carry objectionable odors to residential or recreational areas. (2) New confined animal feeding operations should not be located where prevailing winds are likely to carry odors into residential or recreational areas. Attention should also be given to expansion of suburban areas and the stability of local zoning restrictions in locating new operations or substantially expanding existing operations.