Linda s. Adams 

Secretary for 

Environmental Protection 

December 21, 2010 

Mr. Jared Blumenfeld 

Regional Administrator 

Air Resources Board 

Mary D. Nichols, Chairman 

1001 I Street • P.O. Box 2815 

Sacramento, California 95812 • www.arb.ca.gov 

U.S. Environmental Protection Agency 

Region 9 

75 Hawthorne Street 

San Francisco, California 941 05 

Dear Mr. Blumenfeld: 

Arnold Schwarzenegger 

Governor 

The Air Resources Board (ARB) hereby submits the Imperial County 2009 1997 8-Hour 

Ozone Modified Air Quality Management Plan (2009 Ozone Plan) and the 2009 

Reasonably Available Control Technology State Implementation Plan (2009 RACT SIP) 

to the United States Environmental Protection Agency (U.S. EPA) as revisions to 

California's State Implementation Plan (SIP). 

On December 3, 2009, U.S. EPA promulgated a clean data finding for Imperial County, . 

indicating that the County's air quality now complies with the 1997 8-hour ozone 

national ambient air quality standard. This action suspended certain Clean Air Act 

(CAA) requirements that Imperial County would have had to address as a moderate 

ozone nonattainment area. 

On July 13, 2010, the Imperial County Air Pollution Control Board adopted the 2009 

Ozone Plan and 2009 RACT SIP to fulfill CAA requirements that were not suspended by 

. the clean data finding and to fulfill RACT requirements for moderate nonattainment 

areas. ARB approved both plans on November 18, 2010. 

This package consists of five copies of the materials identified below. 

I) A July 2010, letter from Mr. Brad Poiriez, Air Pollution Control Officer, to 

Mr. James N. Goldstene, ARB Executive Officer, transmitting: 

• 2009 Ozone Plan. 

• 2009 RACT SIP. 

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: http:/fwww.arb.ca.gov. 

California Environmental Protection Agency 

Printed on Recycled Paper 
Mr. Jared Blumenfeld 

December 21, 2010 

Page2 

• Imperial County Staff Report for the 2009 Ozone Plan and 2009 RACT 

SIP. 

• Minute Order (Board Approval). 

• Official affidavit of publication of the Hearing Notice for the Imperial 

County 2009 Ozone Plan and RACT SIP, both dated June 13, 2010. 

II) Public meeting notice for the ARB November 18, 2010 public meeting to 

consider approval of the Imperial County 2009 1997- 8-Hour Ozone 

Modified Air Quality Management Plan and 2009 RACT SIP. 

Ill) ARB staff report for the Imperial County 2009 Ozone Plan and 2009 RACT 

SIP. 

IV) ARB Resolution 1 0-35 adopting the Imperial County 2009 Ozone Plan and 

2009 RACT SIP. . 

V) SIP Completeness Checklists for 2009 Ozone Plan and 2009 RACT SIP. 

If you have any questions, please contact Ms. Lynn Terry, Deputy Executive Officer, at 

(916) 322-2739, or have your staff contact Mr. Douglas Ito, Chief, Air Quality and 

Transportation Planning Branch, at (916) 322-0285. 

Sincerely, 

Enclosures 

cc: See next page. 
Mr. Jared Blumenfeld 

December 21 , 201 0 

Page 3 

cc: (w/o enclosures) 

Ms. Deborah Jordan, Director 

U.S. Environmental Protection Agency 

Air Division-Region 9 

75 Hawthorne Street 

San Francisco, California 941 05 

Mr. Brad Poiriez 

Imperial County Air Pollution Control District 

150 South Ninth Street 

El Centro, California 92243 

Ms. Lynn Terry 

Deputy Executive Officer 

Mr. Doug Ito, Chief 

Air Quality and Transportation Planning Branch