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Cleaner Air Oregon

DEQ Seeks Public Input on CAO Draft Recommended Procedures

The Department of Environmental Quality requests informal comments on draft recommended procedures for conducting Level 1 through Level 4 toxic air contaminants risk assessments for facilities, and draft recommended procedures for air quality dispersion modeling. Comments received earlier in 2019 on a previous draft of the risk assessment procedures have been considered in this next draft.

Facilities, or their consultants, prepare Cleaner Air Oregon modeling demonstrations and risk assessments for review and approval by DEQ. DEQ authored draft procedures to help facilities efficiently prepare approvable risk assessments and modelled emissions. These draft procedures are not a new rule and do not represent any binding requirements for DEQ or facilities performing such assessments.
How to Review and Comment
 
DEQ updated the previous draft procedures based on public comments received during the last comment period. Many of the revisions are clarifications and modeling procedures are now its own document. The draft procedures are available here for review.
 
This is an opportunity to provide informal input. This is not a formal rulemaking process. Members of the public can provide input by Nov. 1, 2019 by emailing cleanerair@deq.state.or.us, or by mail:
 
Oregon DEQ
Attn: Cleaner Air Oregon
700 NE Multnomah Street, Suite 600
Portland, OR 97232
 
DEQ will consider any comments submitted in finalizing the risk assessment procedures. DEQ will not publish responses to comments received.