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J SEAN PARNELL, GOVERNOR If 

t~ 410 Willoughby Avenue, Suite 303 

Post Office Box 111800 DEPT. OF ENVIRONMENTAL CONSERVATION Juneau, Alaska 99811 1800 

OFFICE OF THE COMMISSIONER Phone: 907-465-5066

Fax: 907-465-5070 

CERTIFIED MAIL: 7007 0710 0003 6151 7409 ~'~:~;~, Return Receipt Requested 

OFFICE OF THE EXECUTIVE April 9, 2010 

Dennis McLerran, Regional Administrator 

U.S. EPA Region 10 

1200 6th Avenue, Suite 900 (Mail Stop RA-140) 

Seattle, WA 98101 

Dear Mr. McLerran: 

This letter provides, for your approval, amendments to Alaska's State Air Quality 

Control Plan (SIP), adopted by reference into Alaska Administrative Code (AAC) at 

18 AAC 50.030, with an effective date of April 1, 2010. The amendments include 

the adoption of the primary and secondary National Ambient Air Quality Standards 

for fine particulate matter (PM2.5), ozone and lead, as well as the adoption of the 

federal methods for monitoring and measuring PM2.5, ozone and lead in ambient 

air. These amendments also include adopting by reference the federal 

transportation conformity regulations, and revisions to Alaska's Transportation 

Conformity plan contained in Volume II, Section III.I of Alaska's SIP. 

We are providing three (3) paper copies and one electronic version of the following 

documents to Krishna Viswanathan of your staff: 

• 	 Alaska Administrative Code, Title 18, Chapter 50 Air Quality Control with an 

effective date of April 1,2010, to be published in Register 193, April 2010 

• 	 Sections of the State Air Quality Control Plan, adopted by reference under 18 

AAC 50.030 as amended November 6,2009, including: 

• 	 Volume II, Section IlI.I. Transportation Conformity 

The following supporting documents are also being provided: 

1. 	 Signed Adoption Order and certified Filing Certificate for Permanent 

Regulations, filed March 2, 2010 with an effective date of regulation April 1, 

2010; 

2. 	 Notice of Public Comment, signed August 14, 2009; 

3. 	 Affidavits (3) of Publication for the Public Notice; 
Dennis McLerran 2 	 Apri19, 2010 

4. 	 Affidavit of Agency Record of Public Comment (signed September 28, 2009) 

indicating written public comments were received; 

5. 	 Affidavit of Oral Hearing, signed September 23, 2009; 

6. 	 Public Hearing Transcripts and Certification of Public Hearing, signed 


September 26, 2009; 


7. 	 Affidavit of Notice of Proposed Adoption of Regulations and Furnishing of 

Additional Information, signed September 28, 2009; 

8. 	 Public Review Draft of 18 AAC 50 regulations which shows the changes 

made to the regulations, with bold lettering as new language and bracketed 

language as old language, dated August 14, 2009; 

9. 	 A copy of the tracked regulation amendments prepared by the Department of 

Law in their transmittal packet to the Lt. Governor for filing, dated February 

23, 2010; and 

10. 	Response to Public Comments on proposed regulation changes to 18 AAC 

50, dated October 15, 2009. 

If you or your staff have any questions or need additional information regarding 

these amendments, please contact Scott Sloane at (907) 465-5176. 

Sincerely, _ ~ 

H~-

~Hartig Commissioner 

cc: 	 Rick Albright, EPA Region 10 (wJo enclosures) 

Donna Deneen, Acting Unit Manager, EPA Region 10 (wJo enclosures) 

Krishna Viswanathan, EPA Region 10 (wJ enclosures) 

Alice Edwards, Acting Director, Division of Air Quality, ADEC (wJ0 enclosures) 

Cynthia Heil, Acting Program Manager, ADEC (wJo enclosures)