Proposed 2013 Amendments to the Area Designations for State Standards
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Transcript of Proposed 2013 Amendments to the Area Designations for State Standards
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PROPOSED 2013 AMENDMENTS TO
THEAREA
DESIGNATIONS FOR STATE
STANDARDSPublic WorkshopAugust 29, 2013
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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
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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
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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
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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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