DAQ-2024-007492

Small Source Registration

DAQE-EN161990001-24

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Environmental Compliance
Target Corporation
PO Box 111
Minneapolis, MN 55440-0111
[e-mail]

Dear Environmental Compliance:

Re: Request for Evaluation of Compliance with Rule R307-401-9, UAC: Small Source Exemption
Project Fee Code: N161990001

On February 21, 2024, the Division of Air Quality (DAQ) received your request for a small source
exemption for Target Store T2904 (Provo Town Center Emergency Engine). The source is located at
1200 Towne Centre Boulevard, SPC A Provo, Utah County, 84601. According to your application,
onsite equipment includes one (1) internal combustion engine to operate as an emergency generator.
DAQ has determined the small source exemption applies to the source, as long as the equipment and
associated processes operate as specified in the registration request.

The small source exemption does not exempt a source from complying with other applicable federal,
state, and local regulations and the current Utah Administrative Code. Based on the emissions that you
submitted to DAQ with your registration request, Target Store T2904 is not required to obtain an approval
order under R307-401. If you change your operation such that there is an increase in emissions, we
recommend that you notify us, as an approval order may be required.

As authorized by the Utah Legislature, the fee for issuing this small source exemption is a one-time filing
fee in addition to the actual time spent by the review engineer and all other staff on the project. Payment
should be sent to DAQ upon receipt of the invoice.
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

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DAQE-EN161990001-24
Page 2
Thank you for registering your source with the DAQ. If you have any additional questions, please contact
Katie Andersen at [phone] or [e-mail].

Sincerely,

Bryce C. Bird
Director

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Alan D. Humpherys, Manager
New Source Review Section

BCB:ADH:KA:jg

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Cummins C150N6 Emergency Generator
Power Output: 240 hp
Fuel Consumption Rate (100% Load): 1950 ft3/hr
Hours of generator operation:50 hours
Calculations Summary - Fuel : Natural Gas
Emission Hourly Emission Daily Emission Maximum
Factor1 Units Rate Rate Emissions
(lbs/hr)(lbs/day)(tpy)
PM2.5 0.01941 lb/MMBtu 3.86E-02 0.93 9.65E-04
PM10 0.01941 lb/MMBtu 3.86E-02 0.93 9.65E-04
CO2 0.49 g/bhp-hr 0.26 6.22 0.006
VOC2 0.20 g/bhp-hr 0.86 20.64 0.021
NOx2 0.04 g/bhp-hr 0.00 0.11 1.10E-04
SO2 5.88E-04 lb/MMBtu 1.17E-03 0.03 2.92E-05
Lead (PB)--------
H2S --------
1 Emission factors obtained from AP-42, Table 3.3-2 (July 2000)Total
2 Exhaust Emission Data from Generac, assuming all THC as VOC
Sample Calculations
=0.0194 lbs/10^6 Btu x 1,020 Btu/scf x 1,950.0 cf/hr = 0.0386 lbs/hr
Where:
•1,020 Btu/scf is the heat content of natural gas obtained from AP-42 Chapter 3.2 (July 2000);
•1,950 ft3/hr is the rate of fuel consumption obtained from the manufacturer, and
•50 is the estimated average maximum hours the generator would run in a typical year
Compound
PM10 hourly emission rate:
Maximum
Emissions
lbs/year
1.93
1.93
12.96
42.99
0.22
0.06
60.09 lbs/yr
Cummins C150N6 Emergency Generator
Power Output: 240 hp Their PM Emission Facto
Fuel Consumption Rate (100% Load): 1950 ft3/hr
Hours of generator operation:50 hours
Calculations Summary - Fuel : Natural Gas
Emission Hourly Emission Daily Emission Maximum
Factor1 Units Rate Rate Emissions
(lbs/hr)(lbs/day)(tpy)
PM2.5 3.84E-02 lb/MMBtu 7.64E-02 1.83 1.91E-03
PM10 3.84E-02 lb/MMBtu 7.64E-02 1.83 1.91E-03
CO2 0.49 g/bhp-hr 0.26 6.22 0.006
VOC2 0.20 g/bhp-hr 0.11 2.54 0.003
NOx2 0.04 g/bhp-hr 0.02 0.51 5.29E-04
SO2 5.88E-04 lb/MMBtu 1.17E-03 0.03 2.92E-05
Lead (PB)--------
H2S --------
1 Emission factors obtained from AP-42, Table 3.3-2 (July 2000)Total
2 Exhaust Emission Data from Generac, assuming all THC as VOC
Sample Calculations
=0.0384 lbs/10^6 Btu x 1,020 Btu/scf x 1,950.0 cf/hr = 0.0764 lbs/hr
Where:
•1,020 Btu/scf is the heat content of natural gas obtained from AP-42 Chapter 3.2 (July 2000);
•1,950 ft3/hr is the rate of fuel consumption obtained from the manufacturer, and
•50 is the estimated average maximum hours the generator would run in a typical year
Compound
PM10 hourly emission rate:
0.01941
Maximum
Emissions
lbs/year
3.82
3.82
12.96
5.29
1.06
0.06
27.01 lbs/yr
2020 6.2
2019 15.6
2018 19.6
41.4
13.8