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Proposed 2013 Amendments to the Area Designations for State Standards

Public Workshop August 29, 2013. Proposed 2013 Amendments to the Area Designations for State Standards. Logistics. Presentation available on-line www.arb.ca.gov/desig/2013statedesig.htm Go-to-Meeting Webinar www1.gotomeeting.com/register/465403048 Webinar ID = 465-403-048

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Proposed 2013 Amendments to the Area Designations for State Standards

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  1. Public Workshop August 29, 2013 Proposed 2013 Amendments to theArea Designations for State Standards

  2. Logistics • Presentation available on-line • www.arb.ca.gov/desig/2013statedesig.htm • Go-to-Meeting Webinar • www1.gotomeeting.com/register/465403048 • Webinar ID = 465-403-048 • Problems during presentation • email Jenette Kwong at jkwong@arb.ca.gov August 29, 2013 2

  3. Presentation Outline • Designation Process & Criteria • Proposed Designation Changes • Next Steps • Comments and Discussion August 29, 2013 3

  4. Designation Process • ARB adopts State standards to protect public health and welfare • ARB adopts designation criteria and area designations • Designations indicate healthfulness of air quality • Designations reviewed annually August 29, 2013 4

  5. Data to Use • “Data for Record” • Meet siting and QA procedures • Collected by ARB, Districts, others • Reflect expected highest concentrations • Time Period • Most recent 3 calendar years • Current review: 2010-2012 August 29, 2013 5

  6. Exceedance vs. Violation • Exceedance • Concentration higher than standard • Qualifying exceedances are excluded as • Highly Irregular or Infrequent Events • Violation • Exceedance not excluded as Highly Irregular or Infrequent Event • Not all exceedances are violations August 29, 2013 6

  7. Designation Categories • Nonattainment • 1 or more violations in last 3 years • Attainment • No violations in last 3 years • Unclassified • Insufficient data August 29, 2013 7

  8. Designation Categories • Nonattainment-Transitional • Subcategory of Nonattainment • Ozone • 3 or fewer exceedances in last year • Designation by District • Does not require ARB action • Occurs by Operation of Law August 29, 2013 8

  9. Proposed 2013 State Area Designation Changes • Lead, NO2, Ozone, PM2.5 , and PM10 • One Ozone change by Operation of Law • Remaining changes require EO Action August 29, 2013 9

  10. State Lead Standard • One Standard • 30-Day Average = 1.5 µg/m3 • Not to be equaled or exceeded 10

  11. Proposed Lead Change • Los Angeles County • South Coast Air Basin • Currently Nonattainment • High site is Rehrig (Exide) • Designation value = 0.6 µg/m3 • Propose Attainment for County August 29, 2013 11

  12. State NO2 Standard • Two Standards • 1-Hour Average = 0.18 ppm • Annual Average = 0.030 ppm • Both are not to be exceeded • Areas must meet both standards for Attainment designation 12

  13. Proposed NO2 Change • South Coast Air Basin • Currently Nonattainment • 1-hour High shared by four sites • 1-hour designation value = 0.09 ppm • Annual High site is Pomona • Annual designation value = 0.026 ppm • Propose Attainment for Air Basin August 29, 2013 13

  14. Ozone Standard • Two Standards • 1-hour = 0.09 ppm • 8-hour = 0.070 ppm • Both are not to be exceeded • Areas must meet both standards for Attainment designation August 29, 2013 14

  15. Proposed Ozone Change • Glenn County • Sacramento Valley Air Basin • Currently Nonattainment-Transitional • High site is Willows • 8-hour designation value = 0.069 ppm • No 8-hour exceedances in 2012 • Propose Attainment for County August 29, 2013 15

  16. Proposed Ozone Change • Colusa County • Sacramento Valley Air Basin • Currently Nonattainment-Transitional • High site is Colusa • 8-hour designation value = 0.067 ppm • No 8-hour exceedances in 2012 • Propose Attainment for County August 29, 2013 16

  17. Proposed Ozone Change • Yolo and Solano Counties • Sacramento Valley Air Basin • Currently Nonattainment-Transitional • High site is Woodland • 8-hour designation value = 0.080 ppm • Nine 8-hour exceedances in 2012 • Nonattainment by Operation of Law August 29, 2013 17

  18. PM2.5 Standard • One Standard • Annual Average = 12 mg/m3 • Not to be exceeded August 29, 2013 18

  19. Proposed PM2.5Change • Glenn County • Sacramento Valley Air Basin • Currently Unclassified • High site is Willows • Annual designation value = 9 mg/m3 • Propose Attainment for County August 29, 2013 19

  20. Proposed PM2.5Change • Sacramento County • Sacramento Valley Air Basin • Currently Nonattainment • High site is Sacramento-Del Paso • Annual designation value = 12 mg/m3 • Propose Attainment for County August 29, 2013 20

  21. Proposed PM2.5Change • Salton Sea Air Basin • Imperial (partial) and Riverside (partial) Counties (Remainder of Air Basin outside of • City of Calexico) • Currently Unclassified • High site is Indio • Annual designation value = 8 mg/m3 • Propose Attainment for most of Air Basin August 29, 2013 21

  22. PM10 Standard • Two Standards • 24-Hour = 50 mg/m3 • Annual Average = 20 mg/m3 • Both are not to be exceeded • Areas must meet both standards for Attainment designation August 29, 2013 22

  23. Proposed PM10 Change • Del Norte and Trinity Counties • North Coast Air Basin • Currently Nonattainment • Del Norte high site is Crescent City • 24-hour designation value = 40 mg/m3 • Annual designation value = 15 mg/m3 • Trinity high site is Weaverville • 24-hour designation value = 42 mg/m3 • Annual designation value = 18 mg/m3 • Propose Attainment for Counties August 29, 2013 23

  24. What’s Next? • September 6 • Deadline to submit initial comments or provide additional information • October 15 • Staff report released for public comment period August 29, 2013 24

  25. Further Information • Online information • www.arb.ca.gov/desig/desig.htm • Sign up for designation listserve • Contacts • Theresa Najita (General, PM) • (916) 322-7297 (tnajita@arb.ca.gov) • Jenette Kwong (Ozone, Lead, NO2) • (916) 324-9460 (jkwong@arb.ca.gov) August 29, 2013 25

  26. Comments … Questions … Discussion … August 29, 2013 26

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