AQ_F_1300104_20140214_ST_ProtRvw

NVAa
NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Pat McCrory Sheila C. Holman John E. Skvarla, III
Governor Director Secretary
February 14, 2014 Cabarrus County
Mr. David Chandler
Special Projects Manager
Concord City Generating Plant#2
850 W.C. Coleman Blvd.
Concord,NC 28025
Subject: City of Concord
Generating Plant#2, Cabarrus County,North Carolina
Air Permit No. 07645R06,Facility ID 1300104
Proposed Carbon Monoxide (CO) Emissions Testing for Two of Six Diesel
Generators (ID 1 and 2)
Proposed Test Date: Week of February 17, 2014
DAQ Tracking No. 2014-018ST
Dear Mr. Chandler:
DAQ has reviewed the protocol submittal form(PSF) for the subject testing and deemed it
acceptable. In addition, DAQ is granting your request to test two of the six engines consistent
with EPA's testing guidance for multiple identical engines located at a single site. The sources
to be tested are diesel generators 1 and 2. The sources No. 2 fuel oil-fired peak
shaving/emergency/electrical power generator(rated at 2304 brake-horsepower, 1600 kW
generation capacity). The proposed testing is the initial source testing of newly installed
oxidation catalyst control device in the exhaust system of the diesel engine to reduce CO
emissions. Additionally, temperature and pressure drop parameters must be monitored for
benchmarking purposes.
40 CFR 63 Subpart ZZZZ National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines (RICE NESHAP) applies.
The primary purpose for testing is to demonstrate compliance with 40 CFR 63 Subpart ZZZZ.
Table 2c of 63 Subpart ZZZZ limits concentration of CO in the stationary combustion ignition
RICE exhaust to 23 parts per million by volume dry (ppmvd) or less at 15 percent 02 or a
reduction of CO emissions by 70 percent or more by the catalytic oxidizer. Since testing is
proposed only at the outlet,the concentration limit will be applicable.
Technical Services Section
1641 Mail Service Center,Raleigh,North Carolina 27699-1641
217 West Jones Street,Raleigh,North Carolina 27603
Phone:[phone]/Fax:[phone]
Internet:www.ncair.org
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Mr. David Chandler
February 14, 2014
Page 2
The other purpose is to establish continuous monitoring parameters. Those parameters are:
catalytic oxidizer inlet temperature and oxidizer differential pressure. Note that instrumentation
used for this monitoring should be calibrated on a regular basis.
Continuous oxidizer inlet temperature monitoring is required whenever these sources are
operating. Oxidizer differential pressure monitoring is required a minimum of once per month
whenever these sources are operating.
Table 1: Approved Outlet Test Methods for ES 1 and 2 CO Testing Week of February 17, 2014:
Number Test Number of
Target Proposed Test of Test Run Sampling
Pollutant Method Runs Duration Points Comments
CO ASTM 6522- 3 60
00 2005 Single Point Outlet Testing Only
02&CO2 ASTM 6522- 3 60
00 2005
The proposed test methods are acceptable for the specified pollutants. Approval of the protocol
does not exempt the tester from the minimum requirements of the applicable methods and 63
Subpart ZZZZ. Since no deviations from the applicable testing methodology were addressed in
the test protocol,the testing should be conducted in strict accordance with the requirements of
the ASTM 6522-00 (2005)method.
Permitted energy output is 2304 HP/ 1600 kW. Testing must generally be conducted at full load
t 10%. However, Subpart ZZZZ also allows the testing to be conducted within f 10%of nominal
maximum demand when the generator design capacity is considerably larger than nominal demand
capacity. The final test report must include the operating rate and supporting documentation.
If you have questions, please contact me at [phone] or [e-mail].
Sincerely,
Gary L. Saunders
Environmental Engineer
cc: Tim Lineberger, Carolina Tractor
Ron Slack, Mooresville Regional Office
Central Files, Cabarrus County
IBEAM Documents-1300104