STATE OF CONNECTICUT

DEPARTMENT OF ENVIRONMENTAL PROTECTION

February 9, 2011

David B. Conroy, Chief

Air Programs Branch

United States Environmental Protection Agency - Region 1

5 Post Office Square, Suite 10

Boston, MA 02109-3912

Conroy.dave@epa.gov

Re: Revision to the Connecticut State Implementation Plan,

New Source Review Prevention of Significant Deterioration Permit Program and

Title VPermit Program: Permitting of Greenhouse Gas Emissions

Dear Mr. Conroy:

Pursuant to 40 CFR 51, section 103 and Appendix V, Section 2.1(a), I am submitting an original,

paper version of this letter and supporting materials on behalf of the State of Connecticut

Department of Environmental Protection to request that your agency approve the enclosed

materials as a revision to the Connecticut State Implementation Plan (SIP) for air quality. This

document is also submitted in electronic format to your electronic mail address] This SIP

submittal consists of revisions, developed in accordance with your agency’s Tailoring Rule,2 to

Connecticut’s new source review prevention of significant deterioration and Title V permit

programs. I am very pleased that you granted our request for parallel processing of the approval

of this SIP submission, which was proposed in the Federal Register on January 6, 201 t.

The regulatory revisions, to sections 22a-174-1, 22a-174-3a and 22a-174-33 of the Regulations

of Connecticut State Agencies (RCSA), becan~e effective in the state on January 28,2011 in

accordance with all required state and federal procedures for public participation and in

satisfaction of the requirements of 40 CFR 51, Appendix V, Section 2. To demonstrate

satisfaction of the federal public participation requirements, we have enclosed: a certified copy

of the regulatory revisions; the public notice; a list of attendees at the public hearing;

certification of public hearing; and a hearing report, which summarizes comments received,

identifies the commenters and describes changes made as a result of the comments.

We understand that your approval of our regulatory revisions, as proposed on January 6, 2011,

assumes that adopted regulations do not differ in any important respect from the version npon

which you based your approval. Connecticut’s Legislative Regulations Review Committee

approved the January 6, 2011 with minor changes, mainly to the format of internal references

~ CTDEP was instructed by EPA Region 1 staffto forgo the additional paper copies as long as the submitted

materials were also submitted in electronic format. 2 Preventi~n~fSign~cantDeteri~rati~nandTitleVGreenh~useGasTail~ringRule(75FR3~5~4;June3,20~0)~

(Printed on Recycled Pape0

79 Elm Street o Hartford, CT 06106-5127

www.ct.gov/dep

An Equal Opportunity Employer
David B. Conroy

February 9, 2011

Page 2

within RCSA section 22a-174-3a. The specific changes m’e set out on page 2 of the Legislative

Commissioner’s Office report, which is included among the attachments to this letter.

Please get in touch with me at 860-424-3026 if you have an), questions concerning this

submission.

Sincerely

Anne R. Gobin, Chief

Bureau of Air Management

ARG/MAG/mag

Enclosures

CO: Donald Dahl, EPA Region 1, dahl.donald@epa.~ov

Ida E. McDomaell, EPA Region t, mcdonnell.ida@ep~