AQ_F_2100073_20190124_ST_RvwMemo

Chowan County
DIVISION OF AIR QUALITY
Technical Services Section
January 24, 2019
MEMORANDUM
To: Robert Fisher, Washington Regional Office
From: Gregg O'Neal, P.E., Stationary Source Compliance Branch (SSCB)
Subject: Regulator Marine, Inc.
Edenton, Chowan County, North Carolina, Air Permit No. 07132T12
Facility ID 2100073, Tracking No. 2018-275ST
Carbon Monoxide Emissions Testing of MACT Subpart ZZZZ
Diesel-Fired Peak Shaving Generator(I.D. No. ES-14)
Performed October 25, 2018 by Integrity Air Monitoring, Inc.
Integrity Air Monitoring performed EPA Method 10 for carbon monoxide (CO)emissions.
Generator ES-14 is a Caterpillar peak shaving generator rated at 764 horsepower(hp)maximum
capacity. The electrical rated capacity of the generator is approximately 576 kW. This test was
performed with the generator operating within ±10 of normal load which is approximately 167 kW
according to section 1.1 in the report. The engine CO emissions are controlled by oxidation
catalyst CD-14.
40 CFR 63 Subpart ZZZZ National Emission Standards for Hazardous Air Pollutants for
Reciprocating Internal Combustion Engines(RICE)applies and requires at least a 70% or more
reduction of CO emissions by the catalyst. In addition, permit condition (2.1.B.3.1) requires the
permittee to maintain the catalyst so the pressure drop across it does not change by more than 2
inches of water or±10% from the pressure drop measured during the most recent performance
test. Permit condition (2.1.13.3.1k) requires maintaining the temperature of the exhaust so that the
catalyst inlet temperature is greater than or equal to 450 OF and less than or equal to 1350 OF
[See: 40 CFR 63.6600(b), Table 2a, Table 2b]. The test results are tabulated below.
40 CFR 63 Subpart ZZZZ: EPA Method 10 - CO Emissions 10-25-2018 Test Results
Actual Catalyst CO ppmvd at Reduction
Source ID Generator Inlet AP Across 15%02 Efficency
and Serial# Power Output Temperature Catalyst Inlet I Outlet Result I Required Standard Compliance
ES-14 184.7 kW
#3PG01814 010%of max 685.2 OF 0.33 in H2O 46.0 0.273 99.4% >_70% 63 777 Indicated
Normal)
Compliance was indicated for peak shaving generator ES-14 with 40 CFR 63 Subpart ZZZZ, for
CO emissions. If there are any questions concerning this matter, please contact me at
[phone] or gregg.oneal(c)_ncdenr.gov.
cc: Central Files, Chowan County
IBEAM Documents -2100073