Proposed 2013 Amendments to the Area Designations for State Standards
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PROPOSED 2013 AMENDMENTS TO THE AREA DESIGNATIONS FOR STATE STANDARDS Public Workshop August 29, 2013
description
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 - PowerPoint PPT Presentation
Transcript of Proposed 2013 Amendments to the Area Designations for State Standards
PROPOSED 2013 AMENDMENTS TO
THEAREA
DESIGNATIONS FOR STATE
STANDARDSPublic WorkshopAugust 29, 2013
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 [email protected]
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Presentation Outline • Designation Process & Criteria• Proposed Designation Changes• Next Steps• Comments and Discussion
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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
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Data to Use
• “Data for Record”Meet siting and QA proceduresCollected by ARB, Districts, othersReflect expected highest
concentrations• Time Period
Most recent 3 calendar yearsCurrent review: 2010-2012
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Exceedance vs. Violation
• ExceedanceConcentration higher than standardQualifying exceedances are
excluded as Highly Irregular or Infrequent
Events• Violation
Exceedance not excluded as Highly Irregular or Infrequent Event
• Not all exceedances are violations
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Designation Categories
• Nonattainment1 or more violations in last 3 years
• AttainmentNo violations in last 3 years
• UnclassifiedInsufficient data
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Designation Categories
• Nonattainment-TransitionalSubcategory of Nonattainment
• Ozone3 or fewer exceedances in last yearDesignation by DistrictDoes not require ARB actionOccurs by Operation of Law
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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
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State Lead Standard• One Standard
30-Day Average = 1.5 µg/m3
Not to be equaled or exceeded
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Proposed Lead Change• Los Angeles County
South Coast Air BasinCurrently NonattainmentHigh site is Rehrig (Exide)Designation value = 0.6 µg/m3
Propose Attainment for County
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State NO2 Standard
• Two Standards1-Hour Average = 0.18 ppmAnnual Average = 0.030 ppmBoth are not to be exceeded
• Areas must meet both standards for Attainment designation
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Proposed NO2 Change
• South Coast Air BasinCurrently Nonattainment1-hour High shared by four sites 1-hour designation value = 0.09 ppm Annual High site is PomonaAnnual designation value = 0.026 ppm
Propose Attainment for Air Basin13August 29, 2013
Ozone Standard• Two Standards
1-hour = 0.09 ppm8-hour = 0.070 ppmBoth are not to be exceeded
• Areas must meet both standards for Attainment designation
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Proposed Ozone Change• Glenn County
Sacramento Valley Air BasinCurrently Nonattainment-Transitional High site is Willows8-hour designation value = 0.069 ppmNo 8-hour exceedances in 2012
Propose Attainment for County15August 29, 2013
Proposed Ozone Change• Colusa County
Sacramento Valley Air BasinCurrently Nonattainment-Transitional High site is Colusa8-hour designation value = 0.067 ppmNo 8-hour exceedances in 2012
Propose Attainment for County
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Proposed Ozone Change• Yolo and Solano Counties
Sacramento Valley Air BasinCurrently Nonattainment-Transitional High site is Woodland8-hour designation value = 0.080 ppmNine 8-hour exceedances in 2012
Nonattainment by Operation of Law17August 29, 2013
PM2.5 Standard
• One StandardAnnual Average = 12 mg/m3
Not to be exceeded
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Proposed PM2.5 Change• Glenn County
Sacramento Valley Air BasinCurrently UnclassifiedHigh site is WillowsAnnual designation value = 9
mg/m3
Propose Attainment for County
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Proposed PM2.5 Change• Sacramento County
Sacramento Valley Air BasinCurrently NonattainmentHigh site is Sacramento-Del PasoAnnual designation value = 12
mg/m3
Propose Attainment for County
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Proposed PM2.5 Change• Salton Sea Air Basin
Imperial (partial) and Riverside (partial) Counties (Remainder of Air Basin outside of
City of Calexico)
Currently UnclassifiedHigh site is IndioAnnual designation value = 8
mg/m3
Propose Attainment for most of Air Basin
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PM10 Standard
• Two Standards24-Hour = 50 mg/m3
Annual Average = 20 mg/m3
Both are not to be exceeded• Areas must meet both
standards for Attainment designation
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Proposed PM10 Change• Del Norte and Trinity Counties
North Coast Air BasinCurrently Nonattainment
Del Norte high site is Crescent City24-hour designation value = 40 mg/m3
Annual designation value = 15 mg/m3
Trinity high site is Weaverville24-hour designation value = 42 mg/m3
Annual designation value = 18 mg/m3
Propose Attainment for Counties
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What’s Next?
• September 6 • Deadline to submit initial comments or
provide additional information • October 15
• Staff report released for public comment period
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Further Information• Online information
www.arb.ca.gov/desig/desig.htmSign up for designation listserve
• ContactsTheresa Najita (General, PM)(916) 322-7297 ([email protected])Jenette Kwong (Ozone, Lead, NO2)(916) 324-9460 ([email protected])
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Comments … Questions … Discussion …
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