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Exceptional Events Documents Ozone - Colorado

PDF documents associated with ozone exceptional events for Colorado.

The following PDFs may not be completely formatted for screen readers or other assistive technology. For help with a document, please e-mail Benjamin Gibson, Environmental Protection Specialist, US EPA/OAR/OAQPS/AQPD.

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CDPHE Demonstration for 2017 Wildfires (PDF)(252 pp, 23 MB, 6/1/2018)
EPA Concurrence Letter (PDF)(2 pp, 70 K, 7/11/2018)
EPA Technical Support Document (PDF)(20 pp, 2 MB, 7/11/2018)