AQ_F_2100073_20150824_ST_RvwMemo (4)

Chowan County
DIVISION OF AIR QUALITY
Technical Services Section
August 24, 2015
MEMORANDUM
To: Robert Fisher, Washington Regional Office
From: Gregg O'Neal, Stationary Source Compliance Branch (SSCB)
Subject: Regulator Marine, Inc.
Edenton, Chowan County, North Carolina, Air Permit No. 07132T11
Facility ID 2100073, Tracking No. 2014-243ST
Carbon Monoxide Emissions Testing of MACT Subpart ZZZZ
Diesel-Fired Peak Shaving Generator(I.D. No. ES-14)
Performed November 20, 2014 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 250 kW. The engine
CO emissions are controlled by an oxidation catalyst.
40 CFR 63 Subpart ZZZZ National Emission Standards for Hazardous Air Pollutants for
Reciprocating Internal Combustion Engines(RICE) applies and limits CO to 23 ppmvd at
15% 02 or requires at least 70% reduction. In addition permit condition (2.1.C.3.1) requires the
permittee to maintain the catalyst so that the pressure drop across the catalyst does not change
by more than 2 inches of water or±10% from the pressure drop across the catalyst measured
during the most recent performance test and permit condition (2.1.C.3.k) maintain 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. The test results are tabulated below.
40 CFR 63 Subpart ZZZZ: EPA Method 10 - CO Emissions 11-20-2014 Test Results
Actual Catalyst
CO ppmvd at Reduction
75%02 Efficency
Source ID Generator Inlet OP Across
and Serial# Power Output Temperature Catalyst Inlet Outlet Result Required Standard Compliance
ES-14 220.7 kW 730.1 OF 5.1 in H2O 41.1 0.3 99% >_70% 63 ZZZZ Indicated
#3PG01814 (88%of max)
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 gregq.oneaI(@ncdenr.qov.
cc: Central Files, Chowan County
IBEAM Documents—2100073