 ADVANCE \y63 		

	UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

	REGION III

1650 Arch Street

	Philadelphia, Pennsylvania  19103-2029

	

								December 31, 2007

Mr. Ali Marzakhalili, Administrator				

Air Quality Management Division of Air and Waste Management

Department of Natural Resources and Environmental Control

156 S. State Street

Dover, Delaware, 19901

Dear Mr. Marzakhalili:

On September 28, 2007, the U.S. Environmental Protection Agency (EPA)
received a revision to the Delaware State Implementation Plan (SIP) from
the Delaware Department of Natural Resources and Environmental Control. 
This SIP revision consists of a new regulation, Regulation No. 1148 –
Control of Stationary Combustion Turbine Electric Generating Unit
Emissions.  The regulation will control emissions of nitrogen oxides
from existing, stationary combustion turbine electric generating units,
which are typically known as peaking units.  EPA has determined that the
submittals are administratively and technically complete, and is
reviewing them to prepare a Notice of Proposed Rulemaking.  

If members of your staff have any questions, they may direct them to
Gerallyn Duke at (215) 814-2084.  She is the principal contact for this
rulemaking.    

	Sincerely, 

	

						/s/

         Judith M. Katz, Director

                          			         Air Protection Division     

	Customer Service Hotline: 1-800-438-2474

