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  2. Ozone Designations

Ozone Designations - 2015 Standards - Wisconsin State Recommendations and EPA Response

Ozone Designations for the 2015 Standards - Wisconsin

Scroll to the bottom for most recent documents. 

  • Wisconsin State Recommendation- original (pdf) (193.59 KB, Sept 21, 2016)
  • Wisconsin State Supplemental Recommendation (pdf) (6.79 MB)
  • EPA's Response to Wisconsin (pdf) (429.9 KB)
  • EPA's Technical Support Document (pdf) (3.26 MB)
  • EPA's Technical Support Document - Chicago (pdf) (1.64 MB)
  • Final EPA Technical Support Document (Chicago, IL-IN-WI) (pdf) (4.34 MB)
  • Final EPA Technical Support Document for Wisconsin (pdf) (3.22 MB)
  • May 2021 - Chicago, IL-IN-WI Nonattainment Area Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD) for Counties Remanded to EPA (pdf) (2.78 MB)
  • May 2021 - Wisconsin Milwaukee Area, Sheboygan County Area, Manitowoc County Area, Door County Area Final Area Designations for the 2015 Ozone National Ambient Air Quality Standards Technical Support Document (TSD) for Counties Remanded to EPA (pdf) (3.15 MB)

Ozone Designations

  • Learn About Ozone Designations
  • Regulatory Actions
  • Guidance and Data
Contact Us About Ozone Designations
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on June 17, 2025
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