DAQ-2024-011153

DEPARTMENT OF THE AIR FORCE
75TH CIVIL ENGINEER GROUP (AFMC)
HILL AIR FORCE BASE UTAH
I I September 2024
Amanda C. Burton
Chief, Environmental Branch
7290 Weiner Street
Hill Air Force Base, Utah 84056-5003
Director
Utah Division of Air Quality
Attention: Compliance Section
P.O. Box 144820
Salt Lake city, utah wll4-4820
Dear Director
Lr -Ai: i-'i:rr)ARTfVFNT OF\.v tjljli I r:llE lLTAr- Q r IAL ITY
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Hill Air Force Base is submitting this notification, pursuant to Conditions II.B.52.d existing
affected boilers and II.B.53.d new affected boilers of the Main Base Title V Operating Permit (TVOP)
I 100007004, which states "the permittee shall submit a notification of alternative fuel use within 48 hours
of the declaration of each period of natural gas curtailment or supply intemrption. [Origin: 40 CFR 63
Subpart DDDDDI [40 CFR 63.7545(f)]'
On l5 September 2024, boilers in Building 260 will be fired on DS2 Diesel Fuel Grade 2-
D. Pressure testing of the natural gas supply line is needed for the newly installed temporary boilers in
Building 260, resulting in a fuel supply intemrption.
The alternative fuel, DS2 Diesel Fuel Grade 2-D, complies with the specifications underthe
definition of distillate oil in 40 CFR 60.41c and is Defense Logistics Agency-Energy contracted fuel
compliant with MIL-STD-30048'DoD Standard Practice-Quality Assurance Surveillance for Fuels,
Lubricants and Related Products' for National Stock Number 9 I 40-0 I - 524-0139.
If you have any questions or would like to discuss this issue further, my point of contact is Dr.
Erik Dettenm aier 75 CEG/CEIEA, at (801 ) 777-0888 or erik.dettenmaier.l @us.af.mil.
Sincerely
9t1112024
X Amanda Brrton
$gned by: BJHIONAMANDACTIHSINEI 270023068
AMANDA C BURTON, NH-III, DAF
ChieC Environmental Branch
REVIEWEDInitials: Date: Oct 24, 2024Compliance Status: OKFile #: 10121 (B2)