Pub.1 2019-2020 Issue 2

DepartmentofEnvironmentalQuality Air Quality-PM 2.5 12 • Salt Lake City, Provo, and Logan areas have attained the standard DepartmentofEnvironmentalQuality Air Quality-PM 2.5 13 • Though we’ve met standard, not designated as “in attainment” …yet • UDAQ will submit maintenance plans and redesignation requests to EPA by December 2019 • Maintenance plans require modeling out 10 years and will include all current control measures to show that we can continue to maintain the standard • Redesignation is important so that most stringent control measures do not have to be implemented—would require 5% reduction annually. DepartmentofEnvironmentalQuality Air Quality-Ozone 14 • In 2018, Wasatch front and Uintah Basin designated as “marginal” non attainment for the 2015 Ozone standard • Requires the following: – Emissions inventory (submit August 2020) – New Source Review Rules for sources over 100 tons per year (submit August 2021) – Reach attainment in 3 years • Monitoring data indicate that Utah’s three nonattainment areas are unlikely to attain the standard by 2021. DepartmentofEnvironmentalQuality Air Quality-Ozone 15 • If the nonattainment areas do not meet the standard by August 2021, EPA will bump from Marginal to Moderate. – The bump up triggers the requirement of a SIP that would be due to EPA by February 2023. • SIP requirements include: – A 15% reduction of VOCs (an ozone precursor); – A vehicle Inspection and Maintenance Program for areas meeting the population threshold; – Reasonably Available Control Technology installed on all point sources greater than 100 tons of NOx or VOCs; and – Demonstration of attainment by August 2024 13 UP DATE