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Air Quality Updates in Georgia: NAAQS Status and PSD Inventory

This presentation provides updates on the National Ambient Air Quality Standards (NAAQS) status and the Prevention of Significant Deterioration (PSD) inventory in Georgia. It covers topics such as ozone, particulate matter (PM2.5), and sulfur dioxide (SO2) regulations, design value trends, data requirements, and designation recommendations.

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Air Quality Updates in Georgia: NAAQS Status and PSD Inventory

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  1. NAAQS Status in GA & PSD Inventory UpdateJames W. BoylanGeorgia EPD – Air Protection BranchManager, Planning & Support ProgramAWMA Regulatory Update ConferenceMarch 29, 2016 – Atlanta, GA

  2. Background • Ozone • Formed in the atmosphere (NOx + VOC + sunlight) • Regional pollutant • Respiratory health effects • Particulate Matter (PM2.5) • Formed in the atmosphere & directly emitted • Local and regional pollutant • Cardiovascular health effects • Sulfur Dioxide (SO2) • Directly emitted • Local pollutant • Respiratory health effects 2

  3. Particulate MatterNAAQS 3

  4. Particulate Matter NAAQS • Particulate Matter (PM2.5) –Annual • Annual arithmetic mean, averaged over 3 years. • 1997 NAAQS – 15.0 mg/m3 • 2012 NAAQS – 12.0 mg/m3 • Particulate Matter (PM2.5) – Daily • 98th percentile of 24-hour daily average, averaged over 3 years. • 2006 NAAQS – 35.0 mg/m3 4

  5. Annual PM2.5 Design Value Trends 5

  6. 1997 Annual PM2.5(15.0 mg/m3) Atlanta Area • 2008-2010 • Clean PM2.5 data • August 30, 2012 • EPD submitted Maintenance Plan to EPA • February 24, 2016 • Redesignation to attainment!! (Prior to February 24, 2016) 6

  7. 2012 Annual PM2.5 (12.0 mg/m3) • 2011-2013 data • White counties attainment in 2014 • 2012-2014 data • Orangecounties attainment in 2015 • 2013-2015 data • Redcounties attainment in Spring 2016??? 7

  8. OzoneNAAQS 8

  9. Ozone NAAQS • Annual fourth-highest daily maximum 8-hour concentration, averaged over 3 years. • 2008 NAAQS – 75 ppb • 2015 NAAQS – 70 ppb • Currently, Atlanta (15 counties) is designated nonattainment for the 2008 ozone NAAQS. 9

  10. Ozone Design Value Trends 10

  11. 2008 Ozone NAAQS (75 ppb) Atlanta Area • 2012-2014 data • 77 ppb (above 75 ppb) • August 27, 2015 • Proposed “Marginal” to “Moderate” by EPA • 2013-2015 data • 73 ppb (below 75 ppb) • Maintenance Plan under development • Redesignation to attainment in 2016? 11

  12. 2015 Ozone NAAQS (70 ppb) • October 1, 2015 • NAAQS = 70 ppb • October 1, 2016 • EPD designation recommendations • 2013-2015 data • October 1, 2017 • EPA designations • 2014-2016 data • Atlanta would likely be “Marginal” • No additional emission controls required 12

  13. Sulfur DioxideNAAQS 13

  14. Sulfur Dioxide NAAQS 75 ppb, 99th percentile of 1-hour daily maximum concentrations, averaged over 3 years. 14

  15. SO2 Data Requirements Rule • SO2 NAAQS Data Requirements Rule (DRR) • Signed on August 10, 2015. • Published on August 21, 2015 (80 FR 51052) • The DRR was developed to address the need for additional air quality data to be used for implementing the 2010 1‐hour SO2 NAAQS. • The existing SO2 monitoring network characterizes localized SO2 source impacts in a limited set of areas. • The DRR directs state and tribal air agencies to characterize current air quality in areas with large SO2 sources (2,000 TYP or greater). • Facility can take permit limit below 2,000 TPY to be exempt. 15

  16. SO2 Designations • Round 1 – Violating Monitors • October 4, 2013 - EPA designated 29 areas nonattainment in 16 states based on monitored violations • April 4, 2015 - Attainment SIPs due • October, 2018 - Attainment date • Round 2 – Sierra Club Consent Decree • September 18, 2015 - State designation recommendations due to EPA • July 2, 2016 - EPA makes designations • Round 3 – Modeling Approach • January 15, 2016 - List of sources exceeding threshold due to EPA • July 1, 2016 - Modeling protocols due to EPA • January 13, 2017 - Modeling analysis due to EPA • December 31, 2017 - EPA makes designations based on modeling • Round 4 – Monitoring Approach • January 15, 2016 - List of sources exceeding threshold due to EPA • July 1, 2016 - States submit monitoring details to EPA as part of their annual monitoring network plan • January 1, 2017 - New monitors operational • December 31, 2020 - EPA makes designations based on 2017-2019 monitoring data 16

  17. Sierra Club Consent Decree • Round 2 of designations… • An earlier round of designations would be completed no later than 16 months from the Court’s entry of the consent decree (March 2, 2015) • September 18, 2015 -State recommendations due to EPA • July 2, 2016 - EPA makes designations • Consent decree applies to: • Coal-fired power plants that in 2012 emitted more than: • 16,000 tons of SO2, or • 2,600 tons of SO2 and had an emission rate of at least 0.45 lbs SO2/MMBtu • Georgia Power Plant Scherer • Areas that have newly monitored violations of the 1-hour SO2 NAAQS • Based on air quality modeling in the three (3) full calendar years preceding the Court deadline • One monitor in Savannah 17

  18. Consent Decree Recommendations • Plant Scherer in Monroe County • EPD recommended attainment for Monroe, Bibb, Jones, Jasper, Butts, Lamar, Upson, and Crawford. • EPA’s 120-day letter recommends Monroe, Jones, Jasper, Butts, Lamar, Upson, and Crawford (not Bibb). • Violating monitor in Savannah • Lathrop & Augusta SO2 monitor (13-051-1002) • 2012-2014 design value = 78 ppb • EPD recommended that the land including the IP-Savannah main mill and the area surrounding the violating SO2 monitor (Jasper Spring Park) be designated nonattainment. • In early 2016, GA EPD early certify the SO2 data at this monitor. • 2013-2015 design value = 70 ppb • This area has been removed from the Consent Decree schedule (Round 2) and will be designated based on modeling (Round 3). 18

  19. Large SO2 Sources in Georgia *International Paper - Rome plans to use the monitoring approach. Must relocate current SO2 monitor to new location. **The three facilities in yellow highlight were not included on Georgia’s SO2 DRR source list, but were added by EPA. 19

  20. PSD Off-Site Emissions Inventory 20

  21. PSD Emissions Inventory • GA EPD is creating a statewide emission inventory for the PSD air impact analysis • NAAQS & Increment • PM10, PM2.5, NOx, SO2, and CO • Follow 40 CFR 51 Appendix W • Contractor support from AMEC • GA EPD will maintain future updates to the emission inventory through the permit application process. • All emissions will be available on-line 21

  22. Project Deliverables • Emission Inventory Data and Notebook • 792 SM and 389 Title V sources • Emissions Inventory Web Application • Select location and radius • AERMOD ready file • Excel file with Q/d calculations • AMEC contract ended January 31, 2016 • GA EPD is backfilling emission inventory data for the past 18 months • GA EPD is filling in missing stack parameters • Plan to release to the public in mid-2016 • Facilities can submit updates to EPD 22

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  27. Contact Information Jim Boylan, Ph.D.Georgia Dept. of Natural Resources4244 International Parkway, Suite 120Atlanta, GA 30354James.Boylan@dnr.state.ga.us 404-363-7014

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