S TATE OF WASHINGTON 

### DEPARTMENT OF ECOLOGY PO Box 4 7600 • Olympia, WA 985 04- 7600 • 3 60 - 40 7- 6000 7 11 for Washington Relay Se rvic e • Persons with a s pee ch disabilit y can call 8 77- 833 - 6 3 41
December 6, 2013

Mr. Dennis M. McLerran , Regional Administrator U.S
. Environmental Protection Agency, Region 10 1200 Sixth Avenue Seattle, W A 98101 RE: Washington State Designation Recommendations for the 2012 National Ambient Air Quality Standard for Particulate Matter Dear Mr. McLerran: As the Governor's designee for the State Implementation Plan (SIP), I am submitting recommended designations for the new primary annual national ambient air quality standard (NAAQS) for fme particles (PM2
. s). On December 14 , 2012, EPA revised the primary annual PM2 . 5 NAAQS (78 FR 3086 , January 15, 2013). In that action, EPA strengthened the primary annual PM2. s NAAQS from 15.0 micrograms per cubic meter (J.tg/m3 ) to 12.0 J.lg /m 3

. EPA retained the following NAAQS : • Primary 24-hour PM2.s NAAQS at 35 J.lg/m 3 • Primary 24-hour PM 10 (coarse particle ) NAAQS at 150 flg /m 3 • Current suite of PM secondary NAAQS
. The Clean Air Act provides each state with an opportunity to recommend designations of attainment (meets the NAAQS) , nonattainment (does not meet the NAAQS) , or unclassifiable (insufficient information) for all areas of the state. I recommend the designations listed in Table 1 by county. 

### Table 1 : Designation Recommendations for Washington by County County Design Value Designation Recommendation Clark 7 .0 Attainment King 5.9 Attainment Pierce 

### 7.5 Attainment Snohomish 7.3 Attainment Spokane 7.4 Attainment Yakima 8.7 Attainment

®···Dennis M. McLerran, Regional Administrator December 6, 2013 Page 2
Rest of Washington (Adams, NIA Asotin, Benton , Chelan, Clallam, Columbia, Cowlitz, Douglas, Ferry, Franklin, Grant, Grays Harbor, Island, Jeff erson, Kitsap, Kittitas , Klickitat, Lewis , Lincoln, Mason, Okanogan, Pacific , Pend Oreille, San Juan , Skagit, Skamania, Stevens , Thurston, Walla Walla, Whatcom, Whitman) Unclassifiable (insufficient monitoring data)

I have enclosed a spreadsheet with the monitoring data supporting these designation r ecommendations. I also enclosed a map created using "EPA 's PM2 . 5 Designations Mapping Tool" that shows all of Washington's monitors have design va lues below 12.0 IJ.g /m 3

. Ecology met all state and federal procedural requirements. We published notice of the public comment period and opportunity to request a hearing on its website on September 13, 2013 , which meets the requirement of 31 days advance notice. We did not hold a hearing because we did not receive a request for one. However, we did receive written comments. The enclosed Concise Explanatory S tatement includes a compilation of public comments we re ceived and our response to comments. If you have any questions , please contact Richelle Perez at (360) 407-7528 or richelle .perez@ecy. wa. gov. Sincerely ,

# ~'vtiJ**~** Maia D
. Bellon Director Enclosures
cc: Jeff Hunt, EPA (w / enclosures) Richelle Perez , SIP Planner (w / o enclosures) Nancy Pritchett, Rules and Planning Unit Manager (w / o enclosures) Julie Oliver, Section Manager, Program Development (w/o enclosures) Jeff Johnston, Section Manager, Science and Engineering (w /o enclosures) Stu Clark, Program Manager, Air Quality Program (w/o enclosures) Records file (w/ enclosures)PM2.5 Designation Recommendations by County County Design Value Designation Recommendation Adams N/A Unclassifiab l e Asotin N/A Unclassifiab l e Benton N/A Unclassi fia b l e Chelan N/A Unclassifiab l e Clallam N/A Unclassifiab l e Cl ark 7.0 Attainment Columb i a N/A Unclassifiab l e Cowlitz N/A Unclassifiab l e Douglas N/A Unclassifiab l e Ferry N/A Unc l assifiab l e Franklin N/A Unclassifiab l e Grant N/A Unclassifiab l e Grays Harbor N/A Unclassifiab l e Island N/A Unclassifiab l e Jefferson N/A Unclassifiable King 5.9 Attainment Kitsap N/A Unclassifiable Kittitas N/A Unclassifiable Kl i ckitat N/A Unclassifiable Lewis N/A Unclassifiable Lincoln N/A Unclassifiable Mason N/A Unclassi f ia ble Okanogan N/A Unclassifiable Pacific N/A Unclassifiab l e Pend Oreille N/A Unclassifiable Pierce 7.5 Attainmen t SanJuan N/A Unclassifiab l e Skagit N/A Unclassifiab l e Skamania N/A Unclassifiable Snohomish 6.8 

### I 7.3 Attainment Spokane 7.4 Attainment Stevens N/A Unclassifiable Thurston N/A Unclassifiable Walla Walla N/A Unclassifiable Whatcom N/A Unclassi fiable Whitman N/A Unclassifiable Yakima 8.7 AttainmentPM2.5 Designation Recommendations by Monitor Monitor 53-011-0013 8205 NE Fou rth Plan Rd, Vancouver, WA 53-033-0080 Beacon HillS 53-053-029 South L Street 53-061-0005 6120 212th St SW , Mountlak e Te rr ace , WA 53-061-0020 1085 FirSt 53 -063 -0021 E. Auguasta Ave 53-077-0009 402 South 4th Ave Design Value 7
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