Matthew Rodriquez Secretary for Environmental Protection

December 11, 2014 Mr. Jared Blumenfeld Regional Administrator Region 9 

# 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 75 Hawthorne Street San Francisco , California 94105 Dear Mr. Blumenfeld: Edmund G . Brown Jr. Governor

Enclosed is a revision to the California State Implementation Plan (SIP) that consists of Northern Sonoma Air Pollution Control District (District) rules modified on November 14, 2014 to conform to U .S. Environmental Protection Agency (U . S. EPA) requirements that were outlined in its partial disapproval of California's Infrastructure SIP. The rules are identified in Enclosure A and will be incorporated in Infrastructure SIP. Also enclosed is the Air Resources Board Executive Order S-14-014 adopting the District's rules as revisions to the SIP . To meet the U .S. EPA criteria for determining that rule submittals are administratively and technically complete, we have enclosed a SIP submittal checklist. We have also enclosed an evaluation of the effects of the rule on emissions, evaluation of the rule 's consistency with 40 CFR 51, and other supporting documentation provided to us by the District. One compact disc and one paper copy , each containing the revision , are enclosed. If you have any questions, please have your staff contact Ms . Karen Magliano, Acting Chief, Air Quality Planning and Science Division, at (916) 322-5350 or by email at kmaglian@arb.ca.gov . Sincerely, 

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# ~ard W. brrey Executive Officer Enclosure(s) cc: See next page.

The energy chall enge facing Cali fornia i s real. Every Calif ornian needs t o take immed iate action to reduce energy consumption. Fora li st ofsimple ways you can reduce demand and c ut your energy cost s, see our website: http :// www.arb .ca. gov. California E nvironmental Protection Agency Printed on Recycled PaperMr. Jared Blumenfeld December 11, 2014 Page 2
cc: (continued) Ms . Barbara Lee Air Pollution Control Officer Northern Sonoma Air Pollution Control District 150 Matheson Street Healdsburg , California 95448-4908 Ms. Karen Magliano Acting Chief Air Quality Planning and Science DivisionMr. Jared Blumenfeld December 11, 2014 Page 3 bee : Aron Livingston , OLA Pam Biggins , ASD (1 05 Grant Conditions) Sylvia Vanderspek, AQPS Carol Sutkus , AQPS Gayle Sweigert, AQPS Austin Hicks , AQPS Monica Lewis , AQPS Mr. Andy Steckel , Chief Rulemaking Office (Air-4) Region 9 U .S . Environmental Protection Agency 75 Hawthorne Street San Francisco , California 94105 Ms . Laura Yannayon Permits Office (Air-3) Region 9 U.S . Environmental Protection Agency 75 Hawthorne Street San Francisco , California 94105 Mr. Kenneth Koyama Executive Director California Air Pollution Control Officers Association 1107 Ninth Street , Suite 210 Sacramento , California 95814 EO Chron (with Enclosures) AQPS Chron (with Enclosures) SIP Library (with Enclosures) Assignment: AQPS #9343 

### I ARB #18829 B :\RULES\Completed SIPs\CARB SIP 2014- 11 -dd Northern Sonoma Expedite\Cover Letter.docDate: California Environmental Protection Agency AIR RESOURCES BOARD Enclosure A Rules that were Amended by the Northern Sonoma Air Pollution Control District and are Submitted as Revisions to the State of California Implementation Plan forAchieving and Maint aining the National Ambient Air Quality Standards District Northern Sonoma APCD

Northern Sonoma APCD

Northern Sonoma APCD

Northern Sonoma APCD Rule Date Adopted Number 

### 130

200

220

230 or Amended

11/14/14

11/14/14

11/14/14

11/14/14 Definitions (Amended) Title

Permit Requirements (Amended)

New Source Review Standards (Including PSD Evaluations) (Amended) Action on Applications (Amended)California Environmental Protection Agency AIR RESOURCES BOARD Executive Order S-14-014 WHEREAS, the rules identified in Enclosure A have been amended by Northern Sonoma Air Pollution Control District (D istri ct) on November 14 , 2014 ; WHEREAS, the District is authorized by California Health and Safety Code (H&SC) section 40001 to adopt and enforce the rules identified in Enclosure A ; WHEREAS, the rules have been submitted to the Air Resources Board (ARB) for inclusion in the California State Implementation Plan (SIP); WHEREAS, ARB has determined that these rul es are necessary to meet requirements of the federal Clean Air Act; and WHEREAS, ARB is authorized by H&SC sections 39601, 39602 , and 41650 through 41652 to adopt district ru les as revisions to the SIP . THEREFORE, IT IS ORDERED that ARB hereby adopts the District's rules identified in Enclosure A as revisions to the SIP. I certify, pursuant to 40 CFR 51.1 02 (f), that the ru les identified in Enclosure A were amended after notice and public hearings as required by 40 CFR 51.1 02(a) and 51.102(d). Executed in Sacramento, California, this



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