STATE OF CONNECTICUT 

DEPARTMENT OF ENVIRONMENTAL PROTECTION 

June 14, 2002 

Robert W. Varney, Regional Administrator 

United States Environmental Protection Agency - Region 1 

EPA, New England 

One Congress Street, Suite 1100 

Boston, MA 02114-2023 

Re: New Source Review SIP Revision 

Dear Mr. Varney: 

The Department of Environmental Protection (Department) recently adopted substantial 

amendments to both its new source review (NSR) and Title V operating permit programs. 

By this correspondence, I am requesting that your agency approve the enclosed materials 

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

By this correspondence the Department is also formally withdrawing from your 

consideration all previous NSR SIP submittals for which the Environmental Protection 

Agency (EPA) has not taken final action . This withdrawal includes the Department's 

NSR SIP revision submittal dated May 23, 1994. 

The enclosed materials concern the Department's program for the review of new or 

modified stationary sources of air pollution. These materials include the amended 

regulations and associated administrative materials that are necessary for your agency to 

process this SIP revision as follows : 

Attachment A - Connecticut Regulations 

" Section 22a-174-1, Definitions 

This portion of Attachment A contains a recently promulgated amendment to 

section 22a-174-1 of the Regulations of Connecticut State Agencies concerning 

the abatement of air pollution. This section defines terms used throughout the air 

pollution control regulations. Where practical, the Department incorporated by 

reference key definitions from the Code of Federal Regulations. Please note that 

certain definitions which apply to only the Title V operating permit program or 

state-enforceable programs such as the state hazardous air pollution control 

program are redacted and should not be considered part of this SIP submittal and 

request. Also attached is a copy of a letter from the Secretary of the State 

acknowledging receipt of this regulation showing an effective date of March 15, 

2002 . 

( Printed on Recycled Paper ) 

79 Elm Street " Hartford, CT 06106 - 5127 

http ://dep .state .ct.us 

An Equal Opportunity Employer 
Robert W. Varney 

Page 2 

" Section 22a-174-2a, Procedural Requirements for New Source Review and Title 

V Permitting 

This portion of Attachment A contains new section 22a-174-2a of the Regulations 

of Connecticut State Agencies concerning the abatement of air pollution. 

Recognizing that both the NSR and Title V operating permit programs share 

fundamental procedures that must be followed before either permit may be issued, 

the Department consolidated all such procedural requirements into section 22a174-2a of the Regulations of Connecticut State Agencies . Please note that certain 

procedural requirements which apply to only the Title V operating permit 

program are redacted and should not be considered part of this SIP submittal and 

request. Also attached is a copy of a letter from the Secretary of the State 

acknowledging receipt of this regulation showing an effective date of March 15, 

2002 . 

" Section 22a-174-3a, Permit to Construct and Operate Stationary Sources 

This portion of Attachment A contains new section 22a-174-3a of the Regulations 

of Connecticut State Agencies concerning the abatement of air pollution. The 

Department repealed the former NSR rule set forth in section 22a-174-3 of the 

Regulations of Connecticut State Agencies in order to establish a Title V related 

program under section 112(g) of the Clean Air Act and reconcile certain 

applicability provisions whereby smaller sources were required to apply for, but 

not obtain, a state minor NSR permit. New section 22a-174-3a of the Regulations 

of Connecticut State Agencies contains all of the federally required elements of a 

program to construct and operate new or modified sources of air pollution in the 

State of Connecticut. This regulation sets the requirements for permit 

applications, standards for granting permits and permit modifications, and 

establishes the threshold for which a state specific air pollution control permit is 

required at a level of 15 tons per year of potential emissions. Because the state 

threshold is more stringent than the federal program, this regulation also provides 

a qualified exemption from the requirement to obtain a NSR permit when a source 

operates in a manner that restricts actual emissions significantly below the 

applicability thresholds. Also attached is a copy of a letter from the Secretary of 

the State acknowledging receipt of this regulation showing an effective date of 

March 15, 2002 . 

Attachment B - Public Participation 

This attachment certifies that the Department held a public hearing in accordance 

with the public notice and that the Department followed appropriate state and 

federal procedures for public participation. 
Robert W. Varney 

Page 3 

Attachment C - Hearin2 Report 

This attachment provides a summary of the comments received regarding the 

regulations along with a description of changes made as a result of the comments. 

Attachment D - List of Regulatory Provisions Redacted From the NSR SIP Revision 

This attachment provides, a list of regulatory provisions that are not proposed for 

inclusion into the SIP. To ensure this SIP revision does not contain any 

provisions that are not germane to the NSR program, the Department prepared a 

summary of the redacted provisions . 

Please contact Chris James at (860) 424-3027 if there are any questions or if additional 

materials are needed. Thank you for your assistance in this matter . 

Cc : Steve Rapp, EPA 

Brendan McCahill, EPA 

Chris James, DEP 

Encl . 

AJR/PEF