DAQ-2024-007343

February 13, 2024
Mr. Bryce Bird
Utah Division of Air Quality
State Office Building
195 North 1950 West
Salt Lake City, Utah 84116
RE: Notification for Affected NSPS Source
Dear Director Byrd,
Aligned is providing notification of commencement of operations of its diesel fired emergency
generators to meet the requirements of the National Standards of Performance for New
Stationary Sources (NSPS) in 40 CFR Part 60.7(a)(3). The Aligned West Jordan Facility initiated
operations of the emergency generators on 2.13.2024; subject to NSPS Subpart IIII. A list of
the generators that commenced operation are as follows.
1. GEN3 – 24A – TB800891
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800891
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24
2. GEN3 – 24B – TB800910
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800910
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24
REVIEWED
Initials: CG Date: 4-11-24
Compliance Status: Notification of operational
status
File # 15939 (B2)
3. GEN3 – 24C – TB800912
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800912
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24
4. GEN3 – 24D – TB800908
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800908
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24
5. GEN3 – 24E – TB800911
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800911
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24
6. GEN3 – 24F – TB800913
a.Engine information: CATERPILLAR
b.Model: C175
c.Serial number: TB800913
d.Model year: 2023
e.Maximum engine output: 3100 kW
f.Engine displacement: 84.7
g.Fuel used: Diesel
h. Operational: 2.13.24

7. GEN3 – 24R – TB800914
a. Engine information: CATERPILLAR
b. Model: C175
c. Serial number: TB800914
d. Model year: 2023
e. Maximum engine output: 3100 kW
f. Engine displacement: 84.7
g. Fuel used: Diesel
h. Operational: 2.13.24

Sincerely,

Todd Sauer
Director of Construction
Aligned Data Centers