F3B86EDFDDD278FE87258A1600543F57 Hearing Summary CLICS/CLICS2023A/commsumm.nsf PUBLICBILL SUMMARY For PRESENTATION FROM THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT AND THE ENERGY & CARBON MANAGEMENT COMMISSION, DEPARTMENT OF NATURAL RESOURCESINTERIM COMMITTEE LEGISLATIVE INTERIM COMMITTEE ON OZONE AIR QUALITYDate Aug 25, 2023 Location Old State Library Presentation from the Colorado Department of Public Health and Environment and the Energy & Carbon Management Commission, Department of Natural Resources - Committee Discussion Only Attachment Tag File Name Attachment A http://www2.leg.state.co.us/CLICS/CLICS2023A/commsumm.nsf/0/AF6C2DF4E23D...$File/Attachment A.pdf?OpenElement Attachment A.pdf Attachment B http://www2.leg.state.co.us/CLICS/CLICS2023A/commsumm.nsf/0/04EB90B69672...$File/Attachment B.pdf?OpenElement Attachment B.pdf Attachment C http://www2.leg.state.co.us/CLICS/CLICS2023A/commsumm.nsf/0/CF0DE7D975C8...$File/Attachment C.pdf?OpenElement Attachment C.pdf 09:20:14 AM Trisha Oeth, Director of Environmental Health and Protection, Colorado Department of Public Health and Environment (CDPHE), introduced herself and gave some brief opening remarks. She gave an overview of the ozone challenge in Colorado and the regulatory environment. Mimi Larsen, Deputy Director of Policy & Administration, Energy & Carbon Management Commission (ECMC), Department of Natural Resources introduced herself and gave opening remarks on the ECMC's regulatory processes and their partnership with CDPHE. CDPHE's opening remarks are included as Attachment A and ECMC's opening remarks are included as Attachment B. 09:40:38 AM Garrison Kaufman, Air Pollution Control Division Deputy Director of Regulatory Affairs, CDPHE, introduced himself and began his presentation. CDPHE's presentation is included as Attachment C. He discussed what composes ozone and why it matters, ozone formation, and National Ambient Air Quality Standards (NAAQS). Mr. Kaufman went over the current status of the Denver metro/ North Front Range nonattainment area, with it being in severe nonattainment for the 75 ppb 2008 standards and moderate for the 70 ppb 2015 standards. He next went over the State Implementation Plan (SIP) process, the Air Quality Control Commission (AQCC) is scheduled to hold a hearing on the 2008 NAAQS Severe SIP in December 2023 and the 2015 Moderate SIP in 2025. Mr. Kaufman answered questions from the committee. Ms. Larsen answered questions from the committee. 10:30:19 AM Mr. Kaufman went over long term ozone trends, the average contribution of different causes across all the monitors, the total ozone precursor emissions inventory, and reduction strategies in place or coming soon. He also discussed AQCC rulemaking from 2019-2022, AQCC rulemaking in 2023, the Governor's Directive to CDPHE and ECMC to reduce NOx emissions from the oil and gas sector, and recent legislation to improve air quality. 11:07:15 AM Michael Ogletree, Director the the Air Pollution Control Division, introduced himself and gave closing comments, including building capacity at CDPHE to address air quality challenges. 11:10:46 AM Division Director Ogletree, Deputy Director Kaufman, Director Oeth, and Deputy Director Larsen answered questions from the committee. 11:24:33 AM The CDPHE and ECMC continued to answer questions from the committee.
