GREAT BASIN UNIFIED AIR POLLUTION CONTROL DISTRICT 

AIR QUALITY MAINTENANCE PLAN AND PM10 REDESIGNATION REQUEST FOR 

THE TOWN OF MAMMOTH LAKES AND REVISIONS TO DISTRICT 

RULE 431 – PARTICULATE EMISSIONS 

ADOPTED MAY 5, 2014 

ENCLOSURE 3 

GBUAPCD Board Order No. 140505-03 

Theodore D. Sdade

Air Pollution Control Offìcer

Gnnrr Bnsn UNrnrBo AIn Por,ruTIoN CoNrnoL DISTRICT

157 Short Street, Bisþop, California 9351,4-3537

7 60-872-8211 F ax: 7 60-872-6109

Bto #140505-03

May 5, 2014

I HEREBY CERTIFY that at a regular meeting of the Great Basin Unified Air Pollution Control

District Governing Board held in the Mono County Supervisors Chambers, Bridgepoft,

california on May 5,2014 an order was duly made and entered as follows:

AoeruoR lren¡ #3:

AppRovat or R ReoestcNATtoN Reeuesr R¡¡o PMro Arn Quaury MntHreNANcE Pl-Rr,l FoR THE

Towtt or Mnn¡uorn Llxes; AppnovRr- o¡ RevrsroNs ro DlsrRIcr Rule 431. "PARTtcuLtre

Eulsslols", To ENsuRe MnrrureNANcE o¡ ArR Qurury lupnoveuENTs tN THE

Towt¡ or Maurv¡ot¡l Lnxes

A motion was made by Hunt and seconded by Eastman approving Board Order No. 140505-

03, as attached, which approves and adopts the Air Quality Maintenance Plan for the Town of

Mammoth Lakes and requests the United States Environmental Protection Agency

redesignates the Mammoth Lakes Planning Area from nonattainment for the federal PMro

standard to attainment and adopts revisions to District Rule 431. The Board also directed the

Air Pollution Control Officer to file the submitted CEQA notice of exemption for this project.

Ayes: Board Members - Hames, Johnston, Arcularius, Rawson, Kingsley, Hunt, Eastman

Noes: Ø

Abstain: Ø

Absent: Ø

Motion carried 710 and so ordered.

ATTEST:

Tori DeHaven, Clerk of the Board
Board Order 1-40505-03 May 5, 2014

BOARD ORDER #140505.03

ORDER OF THE GOVERNING BOARD OF THE

GREAT BASIN UNIFIED AIR POLLUTION CONTROL DISTRICT

ADOPTING THE AIR QUALITY MAINTENANCE PLAN AND

PM1O REDESIGNATION REQUEST FOR THE TOWN OF MAMMOTH LAKES, AND

REVISIONS TO DISTRICT RULE 431

May 5, 2014

WHEREAS, on July I,1987 the United States Environmental Protection Agency (US

EPA) set a National Ambient Air Quality Standard (federal standard) for particulate matter less

than 10 microns (PMl0) at 150 micrograms per cubic meter for a24-hour period.

V/HEREAS, in August 1987 the US EPA classified Mammoth Lakes as a Group I area

with a greater thang5o/o probability of exceeding the federal standard, and required the Great

Basin Unified Air Pollution Control District (District) to develop a state implementation plan

that would include a control strategy and regulatory requirements to bring the area into

attainment with the standard.

WHEREAS, the District and the Town of Mammoth Lakes (Town) jointly investigated

the PMl0 air quality problem in the Town and found that the federal PMl0 standard was

violated about eleven times per year, and that the high PMl0 levels were largely caused by

particulate emissions from residential wood combustion (RWC) and road dust entrained into the

air by vehicles on roads treated with volcanic cinders during the winter.

WHEREAS, in November 1990 the District and Town jointly adopted the 1990 Air

Quality Management Plan for the Town of Mammoth Lakes that included rules adopted in

District Rule 431 and Town Municipal Code Chapter 8.30 that regulated the installation of wood

stoves and other solid fuel appliances, instituted voluntary and mandatory no bum days for

fireplaces and woodstoves, required street sweeping to clean up the cinders on the roads after

snow events, and limited the peak traffic volume for future developments in the Town.

V/HEREAS, the control measures successfully reduced PM10 emissions from wood

burning and road dust and air quality improved significantly.

WHEREAS, ambient PM10 levels measured in the Town from 1993 through 20l2have

demonstrated compliance with the federal PMl0 standard and the District has committed to

continue monitoring for at least 20 years after the area is redesignated to attainment to

demonstrate maintenance of the standard.

WHEREAS, future compliance in the Town will be ensured with the continued

implementation of regulations for the installation and operation of RWC devices and the

continued use of street sweepers to remove volcanic cinders from roadways after winter storms'

L
Board Order L40505-03 May 5, 2014

WHEREAS, the 1990 federal Clean Air Act provides for the State of California, after

reasonable notice and public hearings, to request that the USEPA redesignate the Mammoth

Lake Planning Area to attainment with the National Ambient Air Quality Standard for PM10.

WHEREAS, a redesignation of the Mammoth Lakes Planning Area to attainment with

the National Ambient Air Quality Standard for PMl0 requires a revision of the State

Implementation Plan, which provides for the maintenance and enforcement of the PM10

standard (also known as a maintenance plan) in accordance with Clean Air Act requirements'

WHEREAS, the Great Basin Unified Air Pollution Control District is the governmental

entity charged under California law with the responsibility of developing and adopting such a

maintenance plan for the Mammoth Lakes PMl0 Planning Area, and with the timely submittal of

that plan to the California Air Resources Board.

WHEREAS, the District and the Town cooperatively developed a maintenance plan that

included revisions to Municipal Code Chapter 8.30 to strengthen the Town's regulations

governing particulate matter emissions.

\MHEREAS, on November 6, 2013,the Town adopted and approved those revisions to

Municipal Code Chapter 8.30.

WHEREAS, District Rule 431 - Particulate Emissions contains provisions that allow the

District to enforce air quality regulations governing residential wood combustion and road dust

in the Town, and the District has proposed revisions to District Rule 43I that are consistent with

changes to Municipal Code Chapter 8'30.

V/HEREAS, the District prepared and made available for review a written analysis of

proposed District Rule 431 as required by Health & safety code $40727 .2.

WHEREAS, the revisions to District Rule 431 for Particulate Emissions are consistent

with and not in conflict with or contradictory to, any existing statutes, court decisions, or State or

federal regulations.

WHEREAS, the revisions to District Rule 431 are written so that persons directly

affected by it can easily understand its meaning.

WHEREAS, no changes have been made in the text of the revisions to District Rule 431

originally made available to the public that are so substantial as to significantly affect its

meaning.

WHEREAS, a proposed Notice of Exemption meeting the requirements of the California

Environmental euaiity eót was properly noticed and circulated, indicating the proposed

revisions to Rule 431 andthe adõption of the Air Quality Maintenance Plan and PM10

Redesignation Request for the Town of Mammoth Lakes are categorically and statutorily exempt

from the requirements of CEQA.

2

Ver. 1
Board Order 1.40505-03 May 5, 2014

WHEREAS, the Great Basin Unified Air Pollution Control District has developed and

circulated for public review, and received and considered public comment upon the maintenance

plan, redesignation request and revisions to District Rule 431.

V/HEREAS, the maintenance plan, redesignation request and rule revisions for the

Mammoth Lake Planning Area are now before this Governing Board for consideration of hnal

adoption.

NO\il, THEREFORE, BE IT RESOLVED, that following review by this Governing

Board of the Air Quality Maintenance Plan and PMl0 Redesignation Request for the Town of

Mammoth Lakes and the revision to District Rule 431, this Goveming Board hereby approves

and adopts the Air Quality Maintenance Plan and PMl0 Redesignation Request for the Town of

Mammóth Lakes, and the proposed revisions to District Rule 431 and directs the Board Clerk to

promptly submit the maintenánce plan, redesignation request and rule revisions to the California

Air Resources Board for approval and forwarding to the U.S. Environmental Protection Agency

for its consideration and approval.

BE IT FURTHER RESOLVED, that the Governing Board of the Great Basin Unified

Air pollution Control District hereby finds and determines to be true, on the basis of substantial

evidence, each statement of fact, and hereby adopts on the basis of the record of this proceeding

each conclusion of law, set forth in the recitals to this resolution.

BE IT FURTHER RESOLVED, that on the basis of the foregoing, the Governing Board

of the Great Basin Unified Air Pollution Control District hereby authorizes and directs the Air

pollution Control Offrcer to execute on behalf of the District a Notice of Exemption for the

maintenance plan, redesignation request and rule revisions, and to file or record the notice

reflecting that action as provided by applicable law.

BE IT FURTHER RESOLVED, that the District shall prepare and maintain a record of

this SIp amendment and Board Order revision in accordance with Health & Safety Code $40728.

BE IT FURTHER RESOLVED, that the effective date of this Order to approve and adopt

the Air euality Maintenance Plan and PMl0 Redesignation Request for the Town of Mammoth

Lakes and revisions to District Rule 43 I shall be May 5 , 2014.

3

Ver. L
Board Order 140505-03 May 5,2014

APPROVED, ADOPTED and ORDERED by the Governing Board of the Great Basin Unified

Air Pollution Control District this 5ft day of May,2014 by the following vote:

AYES: Board Members - Hames, Rawson, Kingsley, Arcularius, Hunt,

Johnston, Eastman

NOES: 0

ABSTAIN: O

ABSENT: O

Tori DeHaven, Clerk of the Board

of the Governing Board

4 Ver. 1