I 

# Air 

# Resources Board Mary D, Nichols, Chainan Linda S. Adams 1001 1 Street

# - P.O. Box 2815 Arnold Sohwarzelregger

Secretary fbr Sa~t~mento. California 95812

# -w.arb.ca.gov Governor Enw'mnmentdl Pmtedion



### May 13,2008

Mr. Wayne 

### Nastri RegionalAdministr~ltcrr 

### Region 9 U.S. 

### Environmental PmtedionAgency 75 

### Hawthorne Street San Francisco, 

### California 94105 

### Dear Mr. Nastri: 

### Iam writing 

### to provide the 

### U-S, Environmental 

### ProtectionAgency (US. 

### FPA) with technical correctiot~s 

### to 

### the 2020 transportation

### conformity budgets

### for Merced, 

### San Joaquin, Stanislaus, 

### a~d Tulare Counties 

### contained in 

### the 2007 San 

### Joaquin Valley PMIO 

### Maintenance Plan 

### submitted on 

### November 16,2007. 

### These corrections stem from the operation of 

### a module

### which 

### processes input data entered by the user inthe EMFAC 

### 2007 on-road 

### emissions 

### model. The Valley transportation planning 

### agencies provided 

### updated travel activity 

### data 

### for 2020 for 

### calculating 

### the emissions budgets. Incalculating 

### earlier budgets, the 

### input processor inadvertently 

### used the 

### default data instead of the 

### user input 

### data provided by the transportation agencies for 2020 

### for Merced, 

### San Joaquln, Stanislaus, 

### and Tulare Counties. The enclosed revised budgets reflect the 

### data 

### submitted for 2020 by the 

### transportation agencies. The 

### net change in 

### emissions in 

### 2020 valley-wide is a 0.2 

### ton 

### per day increase in oxides of nitrogen, and 

### no 

### net change in direct 

### PM10. These 

### revised budgets are 

### consistent

### with the maintenance demonstration in the plan 

### because the changes 

### in emissions are small in comparison to 

### the 

### total. The enclosed

### table replaces Item V 

### inthe November2007 

### submittal, "Updated 

### Transportation Conformity Budgets." The 

### travel activity enclosed with the 

### November2007 submittal 

### does reflect 

### the data for 

### all counties provided by the 

### transportation agencies for 

### 2020, and the submitted data was 

### used Inthe 

### calculat[on

### of paved 

### road, unpaved road, and road construction 

### dust. Therefore, no revisions 

### are necessaryto 

### those emission 

### categories.

Theenergyohellenge facing Calimia is real- Every Calitbmlanneeds to Mlm immediateaction to n%kkx? energyconsumpfion. For a listofsimple waysyoo can reduce demandand cutyaur energycb*, see ourwebsite: htto!lhrvww&w. 

### California Environmental ProtectionAgency
Printedon RecycledPaperMr. Wayne Nastri May 13,2008 Page 2

We ask that you process these technical corrections to 

### the transportationconformity budgets 

### as soon 

### as possible. If you have 

### any questions, please feel 

### free to cantact Mr. Dennis Wade, Air Pollution Specialist, Air 

### Quality and Transportation Planning Branch, 

### at (916) 

### 327-2963, or email 

### dwade@wrb.ca.gov. Sincerely,



### James Executive Nm 

# G"12f!w Offi 

### r Enclosure

cc: Dr. Deborah Jordan, Director 

### Air Division, Region 9 U.S. Environmental ProtectionAgency 

### 75 Hawthorne Street San Francisco, California 94105 Mr. Seyed Sadredin Executive 

### DirectorlAir Pollution Control Officer San 

### Joaquin Valley Air Pollution Control 

### District 1990 East Gettysburg Avenue Fresno, California 93726 Ms. 

### Barbara Gaodwin Executive Director Council of Fresno 

### Court@Governments 2035 Tulare Street, Suite 201 Fresno, 

### California 

### 93721 Mr. Ronald Brl~mmett Executive Director Kern Council of Governments 1401 lgth Street, Suite 

### 300 Bakersfield, Ca.llfornia 93301

### Mr. Wayne Nastri May 13,2008 Page 

### 3

Ms. Terri King Executive Director Kings County Association 

### of Governments 

### 339 West 

### "Dl' Street, Suite 

### B Lemoore, California 

### 93245 Ms. Patricia

### Taylor Executive Director Madera County Transportation Commission 1816 Howard Road, Suite 8 Madera, California 93637 

### Mr. Jesse Brown Executive Director Merced County

### Association of 

### Governments 369 West 

### 1 8th 

### Street Merced, California 95340 Mr. Andrew Chesley Executive Director San Joaquin 

### Council of Governments 555 

### East

### Webet Avenue Stockton, California 

### 95202 Mr. Vince Harris, Director

, Stanislaus Council of Governments 900 H Street, Suite D Modesto, California 95354 

### Mr. George 

### Finney Executive 

### Secretary Tulare CountyAssociation of Governments 5961 

### South Mooney Boulevard Viselia, California 93277 

### Mr. 

### Dennis Wade Planning 

### and 

### Technical Support DivisionMotor Vehicle Emission Budgets f9r San 

### Joaquin Valley 

### PMIO Maintenance Plan Annual Average, Tons per 

### Day May, 

### 2008