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DEPARTMENT OF THE AIR FORCE
AIR EDUCATION AND TRAINING COMMAND
13 December 2022
Mr. Christopher P. Toale
Director, Community Initiatives Team
56th Fighter Wing
14185 West Falcon Street
Luke AFB AZ 85309-1629
Mr. Jose Macias
Senior Planner
El Mirage Development Services Division
10000 N. El Mirage Road, El Mirage, AZ 85335
Re: PZ22-11-31; Compass Data Center PHX II (APN: a portion of 501-45-982A)
Dear Mr. Macias
Thank you for the opportunity to provide comments on the Compass Data Center PHX II
development. The development will include three new data center buildings with heights of
approximately 30 ft. The 120-acre site is located at the southwest corner of El Mirage Rd and Peoria
Rd in El Mirage, AZ. The site is partially located inside Accident Potential Zone 2 as well as the
Luke AFB 1988 JLUS 70 and 75 Ldn “high noise or accident potential zone” as identified by
A.R.S. §28-8461 and is within the “territory in the vicinity of a military airport” also defined by
A.R.S. §28-8461.
We recognize this is a pre-application only, which presents an early opportunity for Luke
AFB to express concerns it has based on the location of the development. We continually appreciate
the opportunity to provide comments, acknowledging that we are not the approval authority. Given
the location of this development project, we have identified actual and/or potential mission risks and
hazards should the development encompass the following:
a. Light interference – Buildings or structures that would produce light interference at night and
or glint/glare during the day that would distract or interfere with pilot vision.
b. Spectrum utilization and radio frequency interference – Buildings or structures that would
cause a loss of RADAR coverage such that it interferes with spectrum utilization.
Additionally, to avoid radio frequency interference, developers and or end users should not
use radio equipment that would interfere with Luke’s frequency or operate on a military
frequency.
c. Impairment of pilot’s visibility – Any production that would release substances into the air
that would impair visibility or otherwise interfere with operating aircraft such as: steam, dust
or smoke. These items create a negative impact and should be eliminated.
The risks and hazards as addressed above should be considered as further maturation of the
development occurs and on through project completion.
Luke AFB follows A.R.S. § 28-8481 when evaluating compatible land use within the
“territory in the vicinity of a military airport”. Subject to the results of an FAA Obstruction
Evaluation/Airport Airspace Analysis (OE/AAA) for building heights as well as equipment used
during construction, this request will not negatively impact the flying and base operations at Luke
AFB; however, we reserve the right to comment as the development matures and design plans
become available.
Since the development will be located within the “territory in the vicinity of a military
airport,” it will be subjected to approximately 165 over flights a day. We recommend you review the
sound attenuation requirements found in A.R.S. § 28-8482. In addition, a strong notification
program on the part of the applicant is essential to inform potential occupants about Luke AFB
operations. We also recommend that the developer and/or future occupants be made aware that the
proposed development is underneath Luke AFB’s flight traffic pattern, specifically low-level flights;
therefore, there is an increased risk of accidents in that area as well as fuel dumping or jettison of
external aircraft tanks.
If you have any questions, please contact my Community Planner, Mr. Mark James at
(623) 856-6175.
Sincerely
CHRISTOPHER P. TOALE
cc:
Colonel Keegan L. McLeese, Vice Commander, 56th Fighter Wing
Mr. Timothy A. Forero, GS-13, General Law Attorney, 56th Fighter Wing
TOALE.CHRISTOP
HER.P.1039696165
Digitally signed by
TOALE.CHRISTOPHER.P.10396
96165
Date: 2022.12.13 10:58:00 -07'00'