Department of Environmental Quality : Air Quality in the Portland Region : Air Quality : State of Oregon
DEQ investigation of odor complaints is an attempt to identify the source causing the problem. If a source is identified, DEQ has several approaches for follow-up.
If a complaint about an industrial facility results in the discovery of a permit violation, the source must correct the violation. Violations of regulations or permit conditions may lead to enforcement with civil penalties designed to remove any economic benefit to the source from the violation and deter future violations. In instances where the complaint is not related to a violation, DEQ will work with the facility to determine if there are measures that can reduce the problem.
In cases where complaints are ongoing, DEQ has several options for follow-up. One option is to ensure that existing emission control systems that reduce odors are well maintained and operated. Another option is to encourage the facility to voluntarily take additional measures to reduce odors. A third option is to facilitate a good neighbor agreement, in which the facility commits to pursue additional measures to address neighbors’ concerns. A fourth option is for DEQ and the facility to enter into a best work practices agreement, in which the facility commits to enforceable measures to reduce the nuisance. The elements of the agreement then become permit conditions.
If the source of the odor cannot be identified DEQ will coordinate with individuals, local businesses and various local officials to attempt to locate the source. DEQ sometimes determines that there is not enough information to do further investigation. When reporting an incident or filing a complaint to DEQ it is important to be as complete as possible in the description of its nature, location, intensity and frequency to aid the investigation.
