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Proposed 2012 Amendments to the Area Designations for State Standards

Public Workshop February 21, 2012. Proposed 2012 Amendments to the Area Designations for State Standards. Logistics. Presentation available on-line www.arb.ca.gov/desig/2012statedesig.htm Audio toll-free line 1-866-820-5740 (code 2065838) Please keep phones muted

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Proposed 2012 Amendments to the Area Designations for State Standards

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  1. Public Workshop February 21, 2012 Proposed 2012 Amendments to theArea Designations for State Standards

  2. Logistics • Presentation available on-line • www.arb.ca.gov/desig/2012statedesig.htm • Audio toll-free line • 1-866-820-5740 (code 2065838) • Please keep phones muted • Problems during presentation • email Jenette Kwong at jkwong@arb.ca.gov • Questions/Comments after presentation February 21, 2012 2

  3. Presentation Outline • Designation Process & Criteria • Proposed Designation Changes • Next Steps • Comments and Discussion February 21, 2012 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 February 21, 2012 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: 2008-2010 February 21, 2012 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 February 21, 2012 6

  7. Designation Categories • Nonattainment • 1 or more violations in last 3 years • Attainment • No violations in last 3 years • Unclassified • Insufficient data February 21, 2012 7

  8. Designation Categories • Nonattainment-Transitional • Subcategory of Nonattainment • Ozone • 3 or fewer exceedances in last year • Does not require ARB action • Occurs by Operation of Law February 21, 2012 8

  9. Proposed 2012 State Area Designation Changes • Ozoneand PM2.5 only • Two Ozone changes by Operation of Law • Three PM2.5 changes which require Board Action February 21, 2012 9

  10. 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 February 21, 2012 10

  11. Proposed Ozone Change • Glenn County • Sacramento Valley Air Basin • Currently Nonattainment • High site is Willows • 8-hour designation value = 0.072 ppm • No 8-hour exceedances in 2010 • Nonattainment-Transitional by Operation of Law February 21, 2012 11

  12. Proposed Ozone Change • Yolo/Solano Counties • Sacramento Valley Air Basin • Currently Nonattainment • High site is Woodland • 8-hour designation value = 0.088 ppm • No 8-hour exceedances in 2010 • Nonattainment-Transitional by Operation of Law February 21, 2012 12

  13. PM2.5 Standard • One Standard • Annual Average = 12 mg/m3 • Not to be exceeded February 21, 2012 13

  14. Proposed PM2.5Change • North Coast Air Basin • Del Norte, Humboldt, Trinity , Mendocino, • and Northern Sonoma Counties • Currently Unclassified • High site is Eureka • Annual designation value = 8 mg/m3 • Propose Attainment for Air Basin February 21, 2012 14

  15. Proposed PM2.5Change • Northeast Plateau Air Basin • Lassen, Modoc, Siskiyou Counties • Currently Unclassified • High site is Yreka • Annual designation value = 5 mg/m3 • Propose Attainment for Air Basin February 21, 2012 15

  16. Proposed PM2.5Change • Ventura County • South Central Coast Air Basin • Currently Nonattainment • High site is Thousand Oaks • Annual designation value = 11 mg/m3 • Propose Attainment for County February 21, 2012 16

  17. What’s Next? • February 28 – Deadline to submit comments/information • April 9 - Staff report available • May 24 - Board Hearing February 21, 2012 17

  18. 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) • Sylvia Zulawnick (General) • (916) 324-7163 (szulawni@arb.ca.gov) • Jenette Kwong (Ozone) • (916) 324-9460 (jkwong@arb.ca.gov) February 21, 2012 18

  19. Comments … Questions … Discussion … February 21, 2012 19

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