Matthew Rodriquez 

Secretary for 

Environmental Protection 

September 22, 2014 

Air Resources Board 

Mary D. Nichols, Chairman 

1001 I Street • P.O. Box 2815 

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

Deborah Jordan, Director 

Air Division, Region 9 

U.S. Environmental Protection Agency 

75 Hawthorne Street 

San Francisco, California 94105 

Dear Ms. Jordan: 

Edmund G. Brown Jr. 

Governor 

On March 4, 2013, the Air Resources Board (ARB) submitted the San Joaquin Valley 

2012 PM2.5 Plan (Plan) to the U.S. Environmental Protection Agency (U.S. EPA). After 

the Plan was submitted, U.S. EPA requested that paved road dust emissions growth in 

future years be based on VMT data, rather than centerline mile data. ARB is now 

providing supporting information for paved road dust emissions, based on VMT growth, 

and its negligible impact on the Plan. 

Enclosure 1 shows that the new paved road dust emissions in 2014, 2017, and 2019 

increase by zero, 0.2, and 0.3 tons per day (tpd), respectively, over the 4.5 tpd assumed 

in the Plan for the same years. This minor accounting change does not impact the 

attainment demonstration for 2019 or the NOx Reasonable Further Progress 

demonstration contained in the Plan. There is no impact on the transportation 

conformity budgets. 

If you have any further questions, please call Ms. Sylvia Vanderspek, Chief, Air Quality 

Planning Branch, at (916) 324-7163, or by email at svanders@arb.ca.gov. 

Sincerely, 

~ K L_N \ c~ ~..___-----.~ 

Lynn Terry ~ Deputy Executive Officer 

Enclosure 

cc: See next page. 

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://www.arb.ca.gov. 

California Environmental Protection Agency 

Printed on Recycled Paper 
Ms. Deborah Jordan, Director 

September 22, 2014 

Page 2 

cc: Mr. Tony Boren 

Executive Director 

Council of Fresno County Governments 

2035 Tulare Street, Suite 201 

Fresno, California 93721 

Mr. Andrew Chesley 

Executive Director 

San Joaquin Council of Governments 

555 East Weber Avenue 

Stockton, California 95202 

Mr. Sheraz Gill 

Supervising Air Quality Specialist 

San Joaquin Valley Air Pollution Control District 

1990 East Gettysburg Avenue 

Fresno, California 93726 

Mr. Ahron Hakimi 

Executive Director 

Kern Council of Governments 

1401 19th Street, Suite 300 

Bakersfield, California 93301 

Ms. Terri King 

Executive Director 

Kings County Association of Governments 

339 West "D" Street, Suite B 

Lemoore, California 93245 

Ms. Marjie Kirn 

Executive Director 

Merced County Association of Governments 

369 West 18th Street 

Merced, California 95340 

Mr. Seyed Sadredin 

Executive Director/Air Pollution Control Officer 

San Joaquin Valley Air Pollution Control District 

1990 East Gettysburg Avenue 

Fresno, California 93726 
Ms. Deborah Jordan, Director 

September 22, 2014 

Page 3 

(continued) 

Mr. Ted Smalley 

Executive Director 

Tulare County Association of Governments 

210 North Church Street, Suite B 

Visalia, California 93291 

Ms. Patricia Taylor 

Executive Director 

Madera County Transportation Commission 

2001 Howard Road, Suite 201 

Madera, California 93637 

Ms. Tanisha Taylor 

Senior Regional Planner 

San Joaquin Council of Governments 

555 East Weber Avenue 

Stockton, California 95202 

Mr. Carlos Yamzon 

Executive Director 

Stanislaus Council of Governments 

1111 I Street, Suite 308 

Modesto, California 95354 

Ms. Sylvia Vanderspek 

Chief, Air Quality Planning Branch 

Air Quality Planning and Science Division 
Ms. Deborah Jordan, Director 

September 22, 2014 

Page4 

bee: (via email, with enclosure) 

Lynn Terry, EO 

Kurt Karperos, AQPS 

Karen Magliano, AQPS 

Jon Taylor, AQPS · 

Gabe Ruiz, AQPS 

Webster Tasat, AQPS 

Cari Anderson, AQPS 

Janet Spencer, AQPS 

Patricia Velasco, AQPS 

(hard copies) 

EO Chron 

AQPS Chron 

SIP Library 

External bee: (via email, with enclosure) 

Karina O'Connor, U.S. EPA, Region 9 

Frances Wicher, U.S. EPA, Region 9 

OConnor. Karina@epa.gov 

Wicher.Frances@epamail.epa.gov 

X:\Assessments\cari anderson\Paved Road Dust Growth Updates\SJV 2012 PM2 5 

Plan .Road Dust Update (5).doc