CALIFORNIA AIR RESOURCES BOARD 

NOTICE OF PUBLIC MEETING TO CONSIDER APPROVAL OF THE TOWN OF 

MAMMOTH LAKES PM10 MAINTENANCE PLAN AND REDESIGNATION REQUEST 

The Air Resources Board (ARB or Board) will conduct a public meeting at the time and 

place noted below to consider approval of the Town of Mammoth Lakes PM10 Maintenance 

Plan and Redesignation Request (Maintenance Plan/Redesignation Request) developed 

and approved by the Great Basin Unified Air Pollution Control District (District). If approved 

by the Board, ARB will submit the plan to the United States Environmental Protection 

Agency (U.S. EPA) for approval as a revision to the California State Implementation Plan 

(SIP). 

DATE: September 18, 2014 

TIME: 9:00 a.m. 

PLACE: California Environmental Protection Agency 

Air Resources Board 

Byron Sher Auditorium 

1001 I Street 

Sacramento, California 95814 

This item will be considered at a two-day meeting of the Board, which will commence at 

9:00a.m., September 18, 2014. This item is scheduled to be heard on the Board's 

Consent Calendar. All items on the Consent Calendar- unless removed upon the 

request of a Board member or if someone in the audience submits a request to speak 

card on that item- will be voted on by the Board at the beginning of the public meeting. 

The Clean Air Act (CAA) establishes planning requirements for areas that exceed the 

health-based National Ambient Air Quality Standards (NAAQS or standard). These 

nonattainment areas must develop and implement an approvable attainment plan that 

demonstrates how they will attain the standard by specified CAA deadlines. 

In 1987, U.S. EPA promulgated a national ambient air quality standard (standard) for 

particulate matter less than 10 microns (PM10) at 150 micrograms per cubic meter 

(1Jglm3

) for a 24-hour period and classified Mammoth Lakes as a nonattainment area. 

U.S. EPA required the District to develop an attainment plan that would include a control 

strategy and regulatory requirements to bring the area into attainment with the standard. 

The required plan was adopted by the District and the plan's control measures were 

adopted by the Town of Mammoth Lakes in December 1990. These control measures 

regulated the installation of woodstoves, established no burn days for fireplaces, 

instituted street sweeping, and incorporated planning measures to reduce vehicle miles 

traveled in the Town of Mammoth Lakes. 
Quality-assured air quality monitoring data collected in Mammoth Lakes show that the 

24-hour PM10 standard has not been exceeded since 1993. Under provisions of the 

CAA, an area designated as nonattainment can be redesignated to attainment if, among 

other requirements, the U.S. EPA has fully approved a SIP conforming with the 

requirements of the CAA. On May 5, 2014, the District's Governing Board adopted the 

Town of Mammoth Lakes PM10 Maintenance Plan and Redesignation Request. The 

accompanying District Board resolution officially requests that ARB approve and 

forward to U.S. EPA for approval the Maintenance Plan/Redesignation Request. 

ARB staff has reviewed the District submittal and has concluded that it meets the 

applicable CAA requirements, including the requirement for transportation conformity 

budgets. Staff is recommending that the Board approve the Town of Mammoth Lakes 

PM10 Maintenance Plan and Redesignation Request as a revision to the California SIP. 

The ARB staff report will be available prior to the meeting. Copies of the report may be 

obtained from ARB's Public Information Office, 1001 I Street, First Floor, Environmental 

Services Center, Sacramento, California, 95814, (916) 322-2990, after 

September 7, 2014. The report may also be obtained from ARB's website at: 

http://www.arb.ca.gov/planning/sip/sip.htm 

Interested members of the public may present comments verbally or in writing at the 

meeting and may be submitted by postal mail or by electronic submittal before the 

meeting. To be considered by the Board, written comments not physically submitted at 

the meeting must be received no later than 5:00pm, September 15, 2014, and 

addressed to the following: 

Postal mail: Clerk of the Board, Air Resources Board 

1001 I Street, Sacramento, California 95814 

Electronic submittal: http://www.arb.ca.gov/lispub/comm/bclist.php 

Please note that under the California Public Records Act (Government Code 

section 6250 et seq.), your written and verbal comments, attachments, and associated 

contact information (e.g., your address, phone, email, etc.) become part of the public 

record and can be released to the public upon request. 

ARB requests that written and email statements on this item be filed at least 10 days 

prior to the meeting so that ARB staff and Board members have additional time to 

consider each comment. Further inquiries regarding this matter should be directed to 

Mr. Webster Tasat, Manager, Central Valley Air Quality Planning Section, Air Quality 

Planning and Science Division at (916) 323-4950 or Mr. Earl Withycombe, Air 

Resources Engineer, Central Valley Air Quality Planning Section, Air Quality Planning 

and Science Division at (916) 322-8487. 

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SPECIAL ACCOMMODATION REQUEST 

Consistent with California Government Code Section 7296.2, special accommodation or 

language needs can be provided for any of the following: 

• An interpreter to be available at the hearing; 

• Documents made available in an alternate format or another language; 

• A disability-related reasonable accommodation. 

To request these special accommodations or language needs, please contact the Clerk 

of the Board at (916) 322-5594 or by facsimile at (916) 322-3928 as soon as possible, 

but no later than 10 business days before the scheduled Board hearing. 

TIY/TDD/Speech to Speech users may dial 711 for the California Relay Service. 

Consecuente con Ia secci6n 7296.2 del C6digo de Gobierno de California, una 

acomodaci6n especial o necesidades linguisticas pueden ser suministradas para 

cualquiera de los siguientes: 

• Un interprets que este disponible en Ia audiencia; 

• Documentos disponibles en un formato alterno u otro idioma; 

• Una acomodaci6n razonable relacionados con una incapacidad. 

Para solicitar estas comodidades especiales o necesidades de otro idioma, por favor 

llame a Ia oficina del Consejo al (916) 322-5594 o envie un fax a (916) 322-3928 lomas 

pronto posible, pero no menos de 10 dias de trabajo antes del dia programado para Ia 

audiencia del Consejo. TIY/TDD/Personas que necesiten este servicio pueden marcar 

el 711 para el Servicio de Retransmisi6n de Mensajes de California. 

Date: August 8, 2014 

CALIFORNIA AIR RESOURCES BOARD 

Ric ard . Corey 

Executive Officer 

The energy challenge facing California is real. Every Californian needs to take immediate action to 

reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy 

costs, see our website at www.arb.ca.gov. 

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