AQ_F_0400050_20180427_ST_ProtRvw (4)

_ ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
Air Quality MICHAEL A. ABRACZINSKAS
ENVIRONMENTAL QUALITY Director
April 27, 2018
Khalil Porter
North Carolina Electric Membership Cooperative
P.O. Box 27306
Raleigh,North Carolina 27611-7306
Subject: NCEMC -Anson Plant
Lilesville, Anson County,North Carolina
Facility ID 0400050, Air Quality Permit No. 09492T08
Nitrogen Oxide Test Protocol for Electric Generating Units 1 through 6
Tracking Nos. 2018-071 st through 2018-076st,respectively
Submitted by McHale Environmental
Proposed Test Dates: starting May 11,2018
Dear Mr. Porter,
The North Carolina Division of Air Quality(DAQ)has reviewed the protocol submittal forms
(PSF) for the nitrogen oxide(NOx) emissions testing. The proposed methods are acceptable for
the testing to "re-establish the NOx emission rate vs. heat input rate correlation curves"for the
combustion turbines.
The sources to be tested are electric generating Units 1 through 6, each unit consisting of two
identical Pratt&Whitney FT8 Swift-Pac simple-cycle gas turbines (ES-IA and ES-1B, ES-2A
and ES-2B, ES-3A and ES-3B, ES-4A and ES-4B, ES-5A and ES-5B, ES-6A and ES-6B) and
one generator. Each turbine is equipped with a water injection system(CD-lA and CD-1B, CD-
2A and CD-2B, CD-3A and CD-3B, CD-4A and CD-4B, CD-5A and CD-5B, CD-6A and CD-
6B,respectively). The nominal heat input capacity for each turbine when firing natural gas is 300
million Btu per hour(mmBtu/hr) and 281 mmBtu/hr when firing No. 2 fuel oil.
40 CFR 60 Subpart KKKK Standards of Performance for Stationary Combustion Turbines
applies and limits the 4-hour rolling average NOx emissions to 74 parts per million corrected to
15%02 (ppm@15%02)when firing No. 2 fuel oil and 25 ppm@15%02 when firing natural gas.
15A NCAC 2Q .0317 Avoidance Conditions applies for avoidance of 15A NCAC 2D .0530
Prevention of Significant Deterioration. Permit Condition 2.1.A.5 limits NOx emissions from
the twelve turbines to 245 tons per consecutive 12-month period.
McHale has proposed EPA Methods 3A and 7E to determine the NOx emissions from the
turbines. The target rates for testing are "4 appx equally spaced load points (50%, 67%, 83%,
Base) loads per fuel (gas & fuel oil)." The proposed sampling time for each run is>20 minutes.
The proposed methods,run time, operating loads for each fuel are acceptable.
State of North Carolina I Environmental Quality I Air Quality
217 W.Jones Street 11641 Mail Service Center I Raleigh,North Carolina 2 76 9 9-16 41
919 707 8400

Khalil Porter
April 27, 2018
Tracking Nos. 2018-071 st through 2018-076st
Page 2
The PSF state"the existing facility DAHS will record the following parameters for each unit:
fuel flow, MW, exhaust gas temp,inlet guide vane angle, water to fuel ratio, compressor pressure
ratio and compressor inlet temperature." All parametric data shall be reported in the emissions
test report, including the average value for each run and test condition.
Approval of this protocol does not exempt the tester from the minimum requirements of the
methods. Any deviations remain subject to approval by DAQ. If you have any questions,please
contact me at 919-707-8416 or shannon.vogelk-ncdenr.gov.
Sincerely,*AMO y�
v
Shannon Vogel, Environmental Engineer
Division of Air Quality,NCDEQ
cc: Central Files, Anson County
Geoff Robinson, McHale EMS
Heather Carter, Fayetteville Regional Office
IBEAM Documents - 0400050