AQ_F_2100073_20131122_ST_ProtRvw

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Air Quality
Pat McCrory Sheila C. Holman John E. Skvarla, III
Governor Director Secretary
November 22, 2013 Chowan County
Erik R. Wiborg
Facilities Manager
P. O. Box 49
Edenton,NC 27932
Subject: Regulator Marine, Edenton, Chowan County
Air Permit No. 07132TI0
Facility ID 2100073
Proposed Emissions Testing of Diesel Fired Generator(Source ID I-4)
Proposed Test Date: November 26,2013
Tracking No. 2013-224ST
Dear Mr. Wiborg:
DAQ has reviewed the proposed carbon monoxide(CO)testing of the diesel generator in the protocol
submittal form(PSF) submitted for the above referenced source. Diesel Engine I-4 is rated at 0.312
million Btu per hour(mmBtu/hr)with a 500 kW generator. The applicable regulation is 40 CFR 63
Subpart ZZZZ(4Z)National Emissions Standards for Hazardous Air Pollutants for Stationary
Reciprocating Internal Combustion Engine(RICE). The engine is classified as new under the regulations.
Emissions are controlled by catalytic oxidizer. The PSF is acceptable as discussed below.
The purpose for testing is to demonstrate compliance with 40 CFR 63 Subpart 4Z. The subpart requires
that the control device(catalytic oxidizer)reduction efficiency is greater than or equal to 70%according
to Table 2 in the regulation.
DAQ approves the testing protocol for Regulator Marine with the following conditions:
1) EPA Reference Method 10 is acceptable to sample for CO. Simultaneous inlet and outlet
testing is required. Continuous sampling is required per the method during each run.
2) EPA Reference Method 3A shall be used to measure oxygen(02)simultaneously with
the CO measurements.
3) Use a consistent parameter monitoring frequency interval throughout the test.
a) Catalytic oxidizers-use inlet and outlet oxidizer pressure or differential pressure
instruments that will be used for required routine monitoring. If the readings are
steady,record pressures/differential pressure a minimum of every 15 minutes starting
at the beginning of the test. If unsteady, continuously record pressure every one
minute if possible, otherwise every five(5)minutes.
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.orq

Mr. Erik R. Wiborg
November 22, 2013
Page 2
b) Catalytic oxidizer inlet temperatures—continuous recording using calibrated/verified
station instrument every one minute if possible, otherwise every five(5)minutes
beginning at the start of the test.
c) Brake horsepower(load)during testing shall be documented. It should be recorded
every minute if possible, otherwise at least every 5 minutes beginning at the start of
each test run.
4) Since monitoring of inlet temperature and oxidizer differential pressure is required by the
permit and is routinely performed using station instrumentation,this station
instrumentation must be used during compliance testing to obtain the inlet temperature
and differential pressure to be reported in the test report. These station instruments
should be periodically calibrated(e.g. once per year)to ensure proper indication.
Table 1: Approved Test Methods for CO Testing, Date:November 26, 2013
Number
Target Proposed Test of Test Test Run # of Sampling
Pollutant Method Runs Duration Points Comments
CO EPA Method 10 3 60
Single point Inlet and outlet
02 EPA Method 3A 3 60
Notes: Inlet and outlet conditions must be sampled simultaneously
CO and 02 at inlet and outlet location must be measured concurrently.
See body of letter for inlet temperature and differential pressure monitoring and other requirements.
EPA Method 1 not required at small 6 inch inlet ducts per EPA RICE MACT rule modification.
Testing must be conducted at full normal load± 10%. Full load may also be considered nameplate kilowatts
generation± 10%. Document the test load in the test report.
If you have questions,please contact me at(919) 707-8413 or [e-mail].
Sincerely, ...
Gary L. Saunders
Environmental Engineer
cc: Rob Fisher, Washington Regional Office
Central Files, Chowan County
IBEAM Documents