Matthew Rodriquez Se cre tary for En v ironment al Prot ection
September 22, 2014 

# Air Resources Board Mary D
. Nichols, Chairman

1001 I Street • P
. O
. Box 2815 Sacramento , California 95 8 12 • 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. Go v ernor

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 yea rs . 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 .

T h e energy cha ll enge f aci ng Ca l ifornia is rea l
. Ev ery Ca l if

ornian needs t o take i mmed i ate acti on t o redu ce energy consumpti on. Fora list ofsimple ways you can red uce demand and cut your ener gy costs, see our webs i t e : http ://www
.arb
.ca .gov. Cali forn ia E nvi ronm e nta l Prote ction Ag e ncy Printed on Recycled PaperMs
. 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 93726Ms. 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 DivisionMs
. 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