DEQ is proposing rules that would allow issuance of general permits for similar Title V sources. The current Title V rules in division 218 only provide general permits for the following:
- Numerous similar sources;
- Major sources of hazardous air pollutants that are not subject to National Emission Standards for Hazardous Air Pollutants; and
- Sources DEQ does not consider to be a problem sources based on its complaint record and compliance history.
A major source of hazardous air pollutants is one that emits over 10 tons per year of an individual hazardous air pollutant or 25 tons per year of combined hazardous air pollutants. An area source of hazardous air pollutants is one that emits under these same thresholds.
To date, DEQ has not issued any Title V general permits for major hazardous air pollutant sources because no sources have met these criteria. DEQ does issue general Air Contaminant Discharge Permits for similar non-Title V sources such as dry cleaners, coffee roasters, and gas stations. Once the general ACDP is placed on public notice and DEQ receives comments, DEQ then issues the general ACDP. Any source that qualifies for that general ACDP can be assigned to the general ACDP without additional public notice. DEQ maintains a list of all businesses that are assigned to general ACDPs. The same process would be used for Title V general permits.
At this time, the only source category for which DEQ plans to issue Title V general permits is air curtain incinerators used for woody debris disposal. Federal rules applicable to air curtain incinerators require owners or operators of these units to obtain Title V permits. There may be additional federal rules that require other source categories to have Title V permits in the future, for which a Title V general permit could be issued.