AQ_F_6600074_20210922_ST_RvwLtr (4)

ROY COOPER
Gm·enw,
ELIZABETH S BISER
5eaetary
MICHAEL ABRACZINSKAS NORTH CAROLINA
Environmental Quality D,reao,
September 22, 2021
Mr. David Greiner, Operations Manager
Pleasant Hill Compressor Station
2700 Vepco Street
Chesapeake, VA 23323
Subject: Pleasant Hill Compressor Station
Pleasant Hill, Northampton County, North Carolina
Facility No. 6600074, Air Permit No. 09 I 86T04
Initial Testing for Nitrogen Oxides ( Ox) and Carbon Monoxide (CO) of the
Natural Gas-fired Engine/Compressors ID Nos. ES-1530 I & ES-15303 and
Natural Gas Fired Emergency Engine/Generator ID o. ES-I 53G l
Performed March 30, 2021 ; Tracking o. 202 l -087ST
Dear Mr. Greiner:
The results of the subject EPA Method 7E and Method IO Nitrogen Oxides (NOx) and Carbon
Monoxide (CO) emissions testing have been reviewed by the Division of Air Quality's Stationary
Source Compliance Branch (SSCB). The emissions test demonstrates compliance with the applicable
regulations.
ES-15301 & ES-15303 are natural gas-fired four-stroke rich bum (4SRB) non-emergency
reciprocating engine/compressors. ES-l 53G I is a natural gas-fired 4SRB emergency reciprocating
engine/generator. 15A 2Q .0317 Avoidance Conditions for I SA CAC 20 .0530 Prevention of
Significant Deterioration applies to all three engines. Pem1it condition 2.1.A.5.b states the emission
limits for NOx and CO as< 250 tons, respectively and requires NOx and CO emissions testing to
establish emission factors to be used for demonstrating compliance with the PSD avoidance
conditions. The test results are acceptable to establish emission factors for 15A CAC 2Q .031 7.
Please see the attached memorandum dated September 17, 2021, for more details of the test review,
including tabulated test results and a contact number for the test reviewer. If you have any questions
for the Raleigh Regional Office, please feel free to contact Dawn Reddix, Environmental Engineer,
or me at [phone].
Attachment
cc: RRO Files
William T. Wike, Jr.
Compliance Supervisor
Division of Air Quality, Raleigh Regional Office
North CarolinJ DepJrtm~nt ot Lnv,ronmcnrJI Qu ,ht} D" ~,on ot ,,, Ql,1111,
Ral~iqh Regioml Offict ')800 BJrrett Driv~ llJ!eigh ~onh c ~rnlinil 27t,QQ
OtU 701 t )f'\n T Ohl c.;"" 171"-l r
DIVISION OF AIR QUALITY
Technical Services Section
September 17, 2021
MEMORANDUM
To: Taylor Hartsfield, EIT, CPM, Raleigh Regional Office
From: Gregg O'Neal, P.E., Stationary Source Compliance Branch (SSCB) 7Jtf
Subject: Pleasant Hill Compressor Station
Pleasant Hill, Northampton County, North Carolina
Initial Testing for Nitrogen Oxides (NOx) and Carbon Monoxide (CO) of the
Natural Gas-fired Engine/Compressors ID Nos. ES-15301 & ES-15303 and
Natural Gas-fired Emergency Engine/Generator ID No. ES-153G1
Performed March 30, 2021 by Alliance Source Testing, LLC
Facility ID 660007 4, Permit No. 09186T04, Tracking No. 2021-087ST
Alliance Source Testing performed EPA Methods 7E and 10 to measure NOx and CO emissions
from ES-15301, ES-15303, and ES-1 53G1. The stack gas volumetric flow rates were determined
by EPA Method 19. The NOx and CO emissions test results demonstrate compliance with the
applicable limits as discussed below.
ES-15301 and ES-15303 are permit listed as existing area source located natural gas-fired,
White-Superior 6G-825, four-stroke rich burn (4SRB) nonemergency reciprocating
engine/compressors (467 horsepower or 3.625 million Btu per hour, each). ES-153G1 is permit
listed as an area source located natural gas-fired, Waukesha VSG11GSI, 4SRB emergency
reciprocating engine/generator (250 hp, 150 kW).
15A NCAC 2Q .0317 Avoidance Conditions for 15A NCAC 2D .0530 Prevention of Significant
Deterioration applies to ES-15301 through ES-15303 and ES-153G1. Permit Condition 2.1.A.5 lists
the 15A NCAC 2Q .0317 PSD avoidance limits for NOx and CO emissions from sources ES-15301
through ES-15303 and ES-153G1 as< 250 tons NOx per 12-month period and< 250 tons CO per
12-month period. Permit Condition 2.1.A.5.b requires NOx and CO emissions testing to establish
emission factors to be used for demonstrating compliance with the PSD avoidance condition. The
tabulated test results are acceptable to establish emissions factor for 15A NCAC 2Q .0317.
NO x an dCO E .. m1ss1ons R esu ts: arc ' estmg M h 30 2021 T
Source ID EPA
Serial# Engine Load Pollutant Method Test Results Standard
(brake work hg) NO, 7E 2.3 g/hp-hr 1.4 lb/hr
ES-15301 263 hp or 620.8 ppmvd {@ 15% 0 2 6.0 ton/yr*
#314939 (-66% of Max co 10 4.5 g/hp-hr 2.6 lb/hr
Engine Load) 1,941 ppmvd@ 15% 0 2 11.3 ton/yr• 15A NCAC 20 .0317
ES-15302 Stack testino results not reoorted for ES-15302 since this unit was not tested. PSD Avoidance
(brake work h12) NOx 7E 2.4 g/hp-hr 1.4 lb/hr Limits ES-15303 263 hp or 631.9 ppmvd@ 15% 0 2 6.1 ton/yr• Total Emissions of #314949 (-66% of Max co 10 4.4 g/hp-hr 2.6 lb/hr NO,< 250 ton/12-mo Engine Load) 1,923 ppmvd @ 15% 0 2 11 . 2 ton/yr• and
(brake work hg) NO, 7E 4.6 g/hp-hr 1.3 lb/hr CO < 250 ton/12-mo
ES-153G1 125hpor 648.2 ppmvd @ 15% 0 2 5.6 ton/yr•
#5299360 (-50% of Max co 10 1.4 g/hp-hr 0.4 lb/hr
Engine Load) 318.4 ppmvd (@ 15% 0 2 1.7 ton/yr•
* Assumes 8760 hours of operation per year.
The test results are acceptable for NO. and CO calculations for 15A NCAC 2Q .0317
PSD avoidance. If there are any questions concerning this matter, please contact me at
[phone] or [e-mail].
cc: Central Files, Northampton County
IBEAM Documents -660007 4
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