 ADVANCE \y63 	UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

	REGION III

1650 Arch Street

	Philadelphia, Pennsylvania 19103-2029

Mr. David K. Paylor, Director						April 30, 2007

Commonwealth of Virginia 

Department of Environmental Quality

629 East Main Street

Richmond, VA 23219

Dear Mr. Paylor:

On March 1, March 8, March 12, and March 22, 2007, the U.S.
Environmental  Protection Agency (EPA) received revisions to the
Virginia State Implementation Plan (SIP) from the Virginia Department of
Environmental Quality.  These revisions, consisting of federally
enforceable permits for four Transcontinental Gas Pipe Line Corporation
(Transco) Stations (Station # 165, #170, #175, and #180) were submitted
for purposes of meeting the Commonwealth’s obligations under Phase II
of the Nitrogen Oxides (NOx) SIP Call.  EPA has determined that the
submittal is administratively and technically complete and will
immediately start the rulemaking process.

If members of your staff have any questions, they may direct them to
Marilyn Powers, Air Quality Planning Branch, at 215-814-2308.  She is
the principal contact for this rulemaking. 

Sincerely,

/s/  

Judith M. Katz, Director

Air Protection Division

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