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April 8, 2026
Case number
Page 1 of 4
Report to the Board of Supervisors
Prepared by the Maricopa County Planning and Development Department
Board Hearing Date:
April 8, 2026
Case #/Title:
Z250047 – Hassayampa Ranch
Supervisorial District:
4
Applicant/Owner:
Wendy Riddell, Berry Riddell LLC / Hassayampa Rach 2040 Acres,
LLC
Request:
Zone change from C-O, C-1, C-2, C-S, R-2, R-3, R1-6 & Rural-43 all
within a PAD overlay zone to IND-2 IUPD
Site Location:
Generally located approx. 1 mile north of the northwest corner of
339th Ave. & Indian School Rd. in the Buckeye area
Site Size:
Approximately 1,687 acres
County Island Status:
N/A
Additional
Comments:
•
The IUPD overlay will create buffer and zones that will limit permitted uses and maximum building
height proximate to existing residential areas to the south. The applicant negotiated these zones
in discussion with the residential property owners.
•
Water is proposed from the Water Utility of Greater Tonopah, and wastewater by The
Hassayampa Utility Company. The IUPD overlay zoning district is applied to limit entitled uses to
only uses that can be accommodated via septic system acceptable to the Planning &
Development and Environmental Services departments until such time that sewer is available to
the site.
•
Current access to the site is via undeveloped roads chiefly 339th Ave. The developer will be
required to dedicate the ultimate rights-of-way and complete necessary street improvements (as
determined by approved traffic impact analysis/study prior to final of construction permits to
establish use).
•
The Tonopah / Arlington Area Plan designates the site for Industrial uses for employment centers
that generally include warehousing, storage, distribution and general manufacturing.
•
The site is outside the City of Buckeye’s municipal, but the city commented they had no objection
while providing local resources for protection of the natural wash. There are no outstanding
concerns from reviewing agencies.
April 8, 2026
Case number
Page 2 of 4
•
To date staff has received 14 letters in opposition and 6 in support. A super-majority vote has not
been triggered. A simple majority of a quorum is required for SUP approval.
Commission
Recommendation:
On 3/05/26, the Commission voted 5-1 (motion by Vice-Chair
Hernandez D5, seconded by Commissioner Rochwalik, D3 with
Toma, D4 dissenting) to adopt a motion recommending the Board
of Supervisors approve Z250047 subject to conditions ‘a’ -‘k’:
a.
Development of the site shall be in substantial conformance with the Narrative Report
entitled “Hassayampa Ranch”, consisting of 13 pages, dated February 9, 2026, except as
modified by the following conditions. The narrative shall be updated within 30 days of
BOS approval to reflect the Solar Exclusion Zone.
b.
Development of the site shall be in substantial conformance with the Zoning Exhibit
entitled “Hassayampa Ranch“, consisting of 1 page, dated February, 2026, except as
modified by the following conditions
c.
The following IND-2 IUPD standards shall apply:
1. Maximum Building Height – 85’, 32’ within 300’ from the southern property line, as
described in the narrative as the Buffer Zone.
2. Minimum Side Setback - 0’, except when abutting a rural or residential zoning
district, then 50’.
3. Minimum Rear Setback – 0’, except when abutting a rural or residential zoning
district, then 50’.
4. Additional Setback Required – 150’ when abutting the southern property line, as
described in the narrative as the Buffer Zone.
5. Minimum Parking - Warehouse/Data Center Uses: 1 space per 2,500 square feet of
floor area.
6. Minimum Screening - 6’ solid wall except 8’ solid wall when adjacent to a rural or
residential zoning district;
7. Permitted Uses – all uses permitted in the IND-2 zoning district, except there
shall be limited uses within the identified Buffer Zone and Solar Exclusion Zone,
and further that solar power generation shall be prohibited within 500’ of the
southern boundary where adjacent to existing residential, as identified in Figure
A, Solar Exclusion Zone, and wind power generation uses shall be prohibited in the
IND-2 IUPD zoning district.
d.
The following engineering conditions shall apply:
1. There is currently no County access to the site from the south. The County
completed Hidden Waters Parkway North feasibility study in 2012. The applicant
shall refer to the preferred alignment study and coordinate with MCDOT to determine
accessibility of the site.
2. Wash T2N-R5W-S33E ultimately outfalls into the Hassayampa River. Site also
contains the Hassayampa River itself. Refer to Arizona Department of Environmental
quality for a list of protected surface waters (PSWL) and Waters of the U.S. (WOTUS),
regulated under the Clean Water Act and ADEQ requirements. Consult ADEQ for
Hassayampa River which may be regulated by ADEQ as a federally protected water.
3. Engineering and drainage review was based on a zone change without a plan of
development. Therefore, without the submittal of a precise plan of development, no
development approval is inferred by this review, including, but not limited to number
April 8, 2026
Case number
Page 3 of 4
of proposed building lots/units, drainage design, access and roadway alignments.
These items will be addressed as development plans progress and are submitted to
the County for further review and/or entitlement.
4. Engineering review of re-zone cases is conceptual in nature. All development and
engineering design shall be in conformance with Section 905 of the Maricopa County
Zoning Ordinance; Drainage Policies and Standards; Floodplain Regulations for
Maricopa County; MCDOT Roadway Design Manual; and current engineering
policies, standards and best practices at the time of application for construction.
5. The County does not provide fire service; therefore, it is incumbent that the applicant
seek service and approval of plans from the jurisdictional fire service provider.
e.
Unless waived or modified by the County at time of subsequent development applications,
the applicant or developer shall document implementation of the best practices and any
recommendations by the Arizona Game and Fish Department (AGFD) related to habitat
and wildlife resources. Should the Zoning Inspector and/or their designee decide that the
owner or developer has not substantially undertaken these best practices in good faith,
the owner or developer shall not receive final permits or certificate of occupancy until the
best practices are implemented.
f.
Administrative approval of a plan of development will be required prior to approval and
issuance of construction permits to develop and establish use of the site.
g.
Prior to issuance of a building permit, written confirmation will be required from the
emergency fire protection jurisdiction having authority that the facility has been designed
in accordance with their regulations and requirements, and that emergency fire protection
service will be provided to the facility. Prior to issuance of the certificate of occupancy,
local fire protection jurisdiction review and approval will be required.
h.
The property owner/s and their successors waive claim for diminution in value if the
County takes action to rescind approval due to noncompliance with conditions.
i.
The granting of this change in use of the property has been at the request of the applicant,
with the consent of the landowner. The granting of this approval allows the property to
enjoy uses in excess of those permitted by the zoning existing on the date of application,
subject to conditions. In the event of the failure to comply with any condition, the property
may be considered for revocation to the zoning that existed on the date of application. It
is, therefore, stipulated and agreed that either revocation due to the failure to comply with
any conditions, does not reduce any rights that existed on the date of application to use,
divide, sell or possess the property and that there would be no diminution in value of the
property from the value it held on the date of application due to such revocation of the
Zone Change. The Zone Change enhances the value of the property above its value as of
the date the Zone Change is granted and reverting to the prior zoning results in the same
value of the property as if the Zone Change had never been granted.
j.
All outdoor lighting within the IND-2 IUPD zoning district shall comply with Maricopa
County’s outdoor light control provisions at time of permitting.
k.
The development shall dedicate the ultimate 65’ half-width right-of-way for Bethany Home
Road along the northern boundary of the IND-2 IUPD zoning district with future entitlement
application/s.
Presented by:
Andrew Lorentzen, Planner
April 8, 2026
Case number
Page 4 of 4
Reviewed by:
Darren Gérard, AICP, Planning Manager
Attachment:
3/5/26 P&Z Packet (42 pages)
3/5/26 P&Z Handout Memo (29 pages)
Note:
3/5/26 Draft P&Z Minutes are not available as of the writing of this report, but can be provided
upon request later, or accessed via Agenda Center, when available.
Z250047
Page 1 of 9
Report to the Planning and Zoning Commission
Prepared by the Maricopa County Planning and Development Department
Case:
Z250047 – Hassayampa Ranch
Hearing Date:
March 5, 2026
Supervisor District:
4
Applicant:
Wendy Riddell, Berry Riddell LLC
Owner:
Hassayampa Rach 2040 Acres, LLC
Request:
Zone change from C-O, C-1, C-2, C-S, R-2, R-3, R1-6 & Rural-43 all within a
PAD overlay zone to IND-2 IUPD
Site Location:
Generally located approx. 1 mile north of the northwest corner of 339th Ave.
& Indian School Rd. in the Buckeye area
Site Size:
Approximately 1,687 acres
Density:
N/A
County Island:
No
County Plan:
Tonopah/Arlington Area Plan - Industrial
Municipal Plan:
N/A
Municipal Comments:
City of Buckeye – Comment Letter
Support/Opposition:
3 letters of opposition
Recommendation:
Approve with conditions
Z250047
Page 2 of 9
Project Summary:
1.
The applicant on behalf of the owner is requesting to change the zoning from C-O, C-S, C-1, C-2,
R-2 R-3, R1-6 & Rural-43 all within a Planned Area Development (PAD) overlay zone to IND-2 IUPD,
an Industrial zoning district subject to an Industrial Unit Plan of Development (IUPD) overlay zone.
The proposal is for future light industrial uses to include data center and an energy campus on
an approximate 1,687-acre site is located in the Tonopah / Arlington area. It was originally zoned
consistent with the Hassayampa Rach Development Master Plan DMP2005007 (DMP) which
included a maximum yield of 5,707 residential units as well as commercial, mixed use, recreation,
education and public facility uses. The previous approved land uses were never developed due to
regional water and sewer utility delivery infrastructure issues.
2.
The subject parcel is within the Tonopah / Arlington Area Plan. On December 10, 2025 a Major
Comprehensive Plan Amendment (CPA) was approved which modified the plan land use
designation from DMP to Industrial. The land is currently undeveloped native soil.
3.
No plan of development (POD) is proposed at this time, but the applicant is requesting to deviate
from base IND-2 development standards to enable ease in future development. Maximum
building height will be increased from 60’ to 85’ to accommodate modern designs for
warehousing or other light industrial uses. Minimum parking requirements will be decreased from
1 space per 900 sq. ft. of floor area to 1 space per 2,500 sq. ft. due to a relatively extensive level
of employees compared to building volume thus less need for employee parking. The applicant
has worked with local residents to increase minimum side and rear setbacks to 50’ adjacent to
rural or residential zoning boundaries and a minimum 150’ building setback along the IUPD’s
southern boundary. An additional 150’ limited height boundary which limits building height to 32’
up to 300’ from the zoning district boundary. This is intended for better integration of futures
industrial uses into the existing rural residential community.
REGULATION
BASE ZONING DISTRICT
REGULATIONS (IND-2)
PROPOSED ZONING DISTRICT
REGULATIONS (IND-2 IUPD)
Maximum Building Height
40'
85’, 32’ within 300’ of the
southern boundary line, as
described in the narrative as the
Buffer Zone.
Minimum Front Setback
20'
20’
Minimum Side Setback
None, except when
abutting a rural or
residential zoning district,
then 25’
None, except when abutting a
rural or residential zoning
district, then 50’
Minimum Rear Setback
None, except when
abutting a rural or
residential zoning district,
then 25’
None, except when abutting a
rural or residential zoning
district, then 50’
Minimum Lot Area
6,000 sq. ft.
6,000 sq. ft.
Minimum Lot Width *
60'
60’
Maximum Lot Coverage
60%
60%
Minimum Parking Spaces
Warehouse Uses: 1 space
per 900 square feet
Warehouse/Data Center Uses: 1
space per 2,500 square feet
Minimum Screening
6' solid wall
6’ solid wall except 8’ solid wall
when adjacent to a rural or
residential zoning district.
Z250047
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Additional Setback Required
0’ required
Minimum 150’ setback abutting
the southern property line, as
described in the narrative as the
Buffer Zone.
Aerial photo of subject site
Eagle view of subject site looking north into subject parcel.
Z250047
Page 4 of 9
Aerial image & surrounding environs
Existing On-Site and Adjacent Zoning / Land Use:
4.
On-site:
C-O PAD, C-1 PAD , C-2 PAD , C-S PAD, R-2 PAD, R-3 PAD , R1-6 PAD &
Rural-43 PAD / Undeveloped, vacant
North:
Rural-43 / Undeveloped, vacant
South:
Rural-43 / residential, and undeveloped
East:
R1-6 PAD & Rural-43 PAD / aggregate mining
West:
Rural-43 / Undeveloped, vacant
Z250047
Page 5 of 9
Current Zoning Map
Proposed Zoning Map
Utilities and Services:
5.
Water:
Water Utility of Greater Tonopah
Wastewater:
Hassayampa Utility Company
School District:
Saddle Mountain Unified School District
Fire:
Buckeye Valley Fire District
Police:
Maricopa County Sherriff
Z250047
Page 6 of 9
Right-of-Way:
6.
The following table includes identified existing and proposed half-width right-of-way and the
future classification based upon the Maricopa County Department of Transportation (MCDOT)
provided review memo. While not currently existing, MCDOT has identified the following right-of-
way reservation requirements for future roadway development reservations. Current access to
the site is via undeveloped roads on 339th Ave (declared right-of-way) and ‘Wickenburg Rd.’ (343rd
Ave) which is made up of private access easements.
Street Name
Half-width Existing R/W
Half-width Proposed R/W
Future Classification
Bethany Home Rd
0’
65’
Principal Arterial
Camelback Rd
0’
100’
Urban Parkway
Hidden
Waters
Parkway
0’
100’
Urban Parkway
Indian School Rd
0’
65’
Urban Principal
343rd Ave.
0’
40’
Urban Major Collector
331st Ave.
0’
65’
Urban Principal Arterial
Adopted Plan:
7.
Tonopah / Arlington Area Plan (adopted September 6, 2000) Industrial uses are listed as
locations for major employment centers. Uses generally include; warehousing, storage,
distribution and general manufacturing.
Public Participation Summary:
8.
The applicant has met all notification requirements. All local landowners within 300’ have been
notified with a first class mailing by the applicant. The site was posted in 10 different locations
along Maricopa County right-of-way. The applicant has indicated direct contact with local
neighbors and landowners seeking input on the proposed zone change. As of the writing of this
report, staff has not received any support or opposition from the public. Staff spoke with one
landowner in the vicinity who requested additional information but did not provide public
comment.
Z250047
Page 7 of 9
Outstanding Concerns from Reviewing Agencies:
9.
The City of Buckeye has provided comment on the request. The site is not located within the City’s
municipal planning area. The City does not object to the proposal but adds development input on
future lighting and impact to the Jackrabbit wash and Hassayampa river bottom.
Staff Analysis:
10.
Staff supports the rezoning to match the Industrial land use designation in the county’s plan. Staff
was aware of community concern (from large-lot residential area to the immediate south)
regarding the loss of rural lifestyle. In this instance, staff considers well-integrated industrial
campuses and natural open space to present less compatibility issues with than the previously
entitled moderate-density master-planned community. The DMP sat undeveloped for 25 years
while low-density lot-splitting occurred to the south. The applicant has worked with the
community to find solutions to utilize the parcel for development by utilizing the distance to
existing and future commercial corridors in the area of interstate 10 and future interstate 11. The
applicant intends to implement best practices as recommended by the Arizona Game & Fish
Department (AGFD) in order to protect habitat and wildlife in the previously undeveloped area
including wildlife surveys, complying with the Arizona native plant law and utilizing the Arizona
wildlife conservation strategy to help navigate and identify conservation opportunities during
development. 3 letters of opposition submitted are included, letters speak of local water
resources, loss of habitat and economic concerns.
Recommendation:
11.
Staff recommends the Commission adopt a motion recommending that the Board of Supervisors
approve Z250047 subject to the following conditions ‘a’ – ‘i’:
a.
Development of the site shall be in substantial conformance with the Narrative Report
entitled “Hassayampa Ranch”, consisting of 13 pages, dated February 9, 2026, except as
modified by the following conditions.
Z250047
Page 8 of 9
b.
Development of the site shall be in substantial conformance with the Zoning Exhibit
entitled “Hassayampa Ranch“, consisting of 1 page, dated February, 2026, except as
modified by the following conditions
c.
The following IND-2 IUPD standards shall apply:
1. Maximum Building Height – 85’, 32’ within 300’ from the southern property line, as
described in the narrative as the Buffer Zone.
2. Minimum Side Setback - 0’, except when abutting a rural or residential zoning
district, then 50’.
3. Minimum Rear Setback – 0’, except when abutting a rural or residential zoning
district, then 50’.
4. Additional Setback Required – 150’ when abutting the southern property line, as
described in the narrative as the Buffer Zone.
5. Minimum Parking - Warehouse/Data Center Uses: 1 space per 2,500 square feet of
floor area.
6. Minimum Screening - 6’ solid wall except 8’ solid wall when adjacent to a rural or
residential zoning district;
d.
The following engineering conditions shall apply:
1. There is currently no County access to the site from the south. The County
completed Hidden Waters Parkway North feasibility study in 2012. The applicant
shall refer to the preferred alignment study and coordinate with MCDOT to determine
accessibility of the site.
2. Wash T2N-R5W-S33E ultimately outfalls into the Hassayampa River. Site also
contains the Hassayampa River itself. Refer to Arizona Department of Environmental
quality for a list of protected surface waters (PSWL) and Waters of the U.S. (WOTUS),
regulated under the Clean Water Act and ADEQ requirements. Consult ADEQ for
Hassayampa River which may be regulated by ADEQ as a federally protected water.
3. Engineering and drainage review was based on a zone change without a plan of
development. Therefore, without the submittal of a precise plan of
4. development, no development approval is inferred by this review, including, but not
limited to number of proposed building lots/units, drainage design, access and
roadway alignments. These items will be addressed as development plans progress
and are submitted to the County for further review and/or entitlement.
5. Engineering review of re-zone cases is conceptual in nature. All development and
engineering design shall be in conformance with Section 905 of the Maricopa County
Zoning Ordinance; Drainage Policies and Standards; Floodplain Regulations for
Maricopa County; MCDOT Roadway Design Manual; and current engineering
policies, standards and best practices at the time of application for construction.
6. The County does not provide fire service; therefore, it is incumbent that the applicant
seek service and approval of plans from the jurisdictional fire service provider.
e.
Unless waived or modified by the County at time of subsequent development applications,
the applicant or developer shall document implementation of the best practices and any
recommendations by the Arizona Game and Fish Department (AGFD) related to habitat
and wildlife resources. Should the Zoning Inspector and/or their designee decide that the
owner or developer has not substantially undertaken these best practices in good faith,
the owner or developer shall not receive final permits or certificate of occupancy until the
best practices are implemented.
f.
Administrative approval of a plan of development will be required prior to approval and
issuance of construction permits to develop and establish use of the site.
Z250047
Page 9 of 9
g.
Prior to issuance of a building permit, written confirmation will be required from the
emergency fire protection jurisdiction having authority that the facility has been designed
in accordance with their regulations and requirements, and that emergency fire protection
service will be provided to the facility. Prior to issuance of the certificate of occupancy,
local fire protection jurisdiction review and approval will be required.
h.
The property owner/s and their successors waive claim for diminution in value if the
County takes action to rescind approval due to noncompliance with conditions.
i.
The granting of this change in use of the property has been at the request of the applicant,
with the consent of the landowner. The granting of this approval allows the property to
enjoy uses in excess of those permitted by the zoning existing on the date of application,
subject to conditions. In the event of the failure to comply with any condition, the property
may be considered for revocation to the zoning that existed on the date of application. It
is, therefore, stipulated and agreed that either revocation due to the failure to comply with
any conditions, does not reduce any rights that existed on the date of application to use,
divide, sell or possess the property and that there would be no diminution in value of the
property from the value it held on the date of application due to such revocation of the
Zone Change. The Zone Change enhances the value of the property above its value as of
the date the Zone Change is granted and reverting to the prior zoning results in the same
value of the property as if the Zone Change had never been granted.
Presented by:
Andrew Lorentzen, Planner
Reviewed by:
Rachel Applegate, Planning Supervisor
Attachments:
Case Map (1 page)
Narrative Report/Ex. Summary (13 pages)
Zoning Exhibit (1 page)
Engineering comments (2 pages)
MCESD comments (4 pages)
MCDOT comments (1 page)
City of Buckeye comments (2 pages)
AZGFD Comments (5 pages)
Opposition Letters (4 pages)
/
Maricopa County Planning & Development - Phoenix, AZ
4
Gross Acres: 1,688 approx.
Generated February 4, 2026 10:25 AM
Z250047
Application Name:
Legal Description
Hassayampa Ranch
Applicant
Case Address
2N 5W 15
WENDY RIDDELL
33022 W INDIAN SCHOOL RD
Applicant Phone/Email
Parcel Primary:504-03-010B
4806823916
TONOPAH, AZ 85354
Map scale 1:29,532
Supervisor District No.
Rezone from R-2, R1-6, RU-43, C-O, C-1, and C-S with PAD overlays to IND-2 IUPD (PA250116)
Zone Change with Overlay
Hassayampa Ranch
North of 339th Avenue and Indian School Road
Case Number: Z250047
1st Submittal: December 23, 2025
2nd Submittal: February 9, 2026
Prepared by:
Berry Riddell LLC
Wendy Riddell, Esq.
Sarah Sawyer, Esq.
6750 E. Camelback Road, Suite 100
Scottsdale, AZ 85251
Prepared for:
Arizona Land Consulting
Anita Verma-Lallian
7181 East Camelback Road, Suite 401
Scottsdale, Arizona 85251
A. Executive Summary
The purpose of this request is to seek a Zone Change with Overlay for approximately 1,687
acres located north of 339th Avenue and Indian School Road, known historically as
Hassayampa Ranch (the “Site”), as shown in blue below. The Site is presently zoned a
mixture of R-2, R1-6, RU-43, C-O, C-1, and C-S, many of which have PAD overlays, for a
planned total of 5,707 dwelling units and 62-acres of commercial uses within a master
planned community. There is an existing sand and gravel mining operation adjacent to
the Site at its northeast boundary. The sand and gravel mine is not a part of this request.
The intent is to rezone the Site to Light Industrial with an Industrial Unit Plan Development
(“IND-2 IUPD”) to permit a light industrial development that may include warehouse, data
center, and power generation uses.
Aerial Map
In 2008, the Site, outlined in blue below, was zoned with a variety of residential and
commercial designations, some with Planned Area Development Overlays. Also in 2008,
the Hassayampa Ranch Development Master Plan (“DMP”) was established over the Site,
which plans for future 5,707 residential units and commercial, mixed use, recreation,
education, and public facility uses. Since the entitlements were approved in 2008, the Site
has remained vacant, largely due to a lack of available infrastructure.
Existing Hassayampa Ranch Zoning
B. Development Standards
An IUPD is requested to modify the IND-2 development standards shown in the table
below. The modification of the standards will allow for the flexibility of future industrial
uses to accommodate changes in market demand, provide opportunities for employment
to the surrounding community, and develop key public infrastructure.
Regulation
Base Zoning District
Regulations (IND-2)
Proposed Zoning District
Regulations (IND-2 IUPD)
Maximum Height
40 feet
85 feet
Minimum Front Yard
20 feet
20 feet
Minimum Side Yard
None, except when abutting
a rural or residential zoning
district, then 25 feet
None, except when
abutting a rural or
residential zoning district,
then 50 feet
Minimum Rear Yard
None, except when abutting
a rural or residential zoning
district, then 25 feet
None, except when
abutting a rural or
residential zoning district,
then 50 feet
Minimum Lot Width
60 feet
60 feet
Maximum Lot Coverage
60%
60%
Parking Spaces
Warehouse Uses: 1 space per
900 square feet
Warehouse/Data Center
Uses: 1 space per 2,500
square feet
Screening
6-foot solid wall
6-foot solid wall
8-foot solid wall when
adjacent to a rural or
residential zoning district
IUPD Justification:
Modifications to the development are requested to provide the flexibility necessary to
attract a wide swath of industrial users, adapt to changes in the market, and be sensitive
to the surrounding context. The request to increase the permitted height allowed by the
IND-2 district from 40 feet to 85 feet. The increase in height will allow for the development
of additional clearance, which is commonly sought by light industrial users.
Additionally, we are requesting a reduction in the required parking for the Site. The Site
will have a mix of warehouse and data center uses, both of which are subject to the same
parking ratio. However, data centers typically contain only a small office space and fewer
number of employees than warehouse uses and therefore, do not require as many
employee parking spaces. Reducing the required parking for the Site reflects the current
parking demand for warehouse and data center uses and provides flexibility in the design
of future development of the Site.
The addition of a side and rear yard and increase in height to screening walls when
adjacent to a rural or residential zoning district will provide a smoother transition from
the future development to existing residences to the south of the Site.
C. Description of Proposal
As shown below, the request is to rezone the Site from the historic zoning districts
approved concurrently with the Hassayampa Ranch DMP to IND-2 IUPD. The intent is to
develop the Site with future light industrial uses, which may include warehouse, data
center, and power generation uses. As no end users for the Site are identified at this time,
the purpose of the IUPD overlay is to build flexibility into the entitlements, which will
attract a diverse range of industrial and employment center users to the Site.
Existing and Proposed Zoning
To create a transition between the proposed development and the residential community
to the south, a Buffer Zone is proposed. As shown below, the Buffer Zone comprises an
approximate 3,200 foot wide and 300-foot-deep area directly adjacent to the limited
existing residential proximate to the Site. The Buffer Zone is divided into right-of-way and
two buffer zones, designed to limit permitted uses and provide enhanced development
standards where the proposed development is immediately adjacent to the existing
residential.
Buffer Zone
The permitted uses and development standards in the Buffer Zone are as follows:
Buffer Zone 1: 100-150 feet from the Site’s south property line
Permitted Uses:
1. Native Landscaping
2. Screening elements which may include, but are not limited to, trees, shrubs,
natural vegetation and walls
3. Vehicular and pedestrian access points
Buffer Zone 2: 150 -300 feet from the Site’s south property line
Permitted Uses:
1. Guest ranches, bed and breakfast establishments, resorts, and hotels
2. Farm animal (horse, cattle and other farm animal) medical clinics and surgical
referral hospitals, subject to the following standards
a. Animals shall not be boarded or lodged except for short periods of
observation incidental to care or treatment.
b. Any building or corral for the keeping of animals shall maintain a
minimum setback of 40 feet from any property line.
c. All refuse and animal wastes shall be stored within an enclosed building or
within odor-proof closed containers.
3. Farms
4. Gardens and community gardens
5. Storage/maintenance of agricultural equipment
6. The keeping of farm animals
7. Business schools
8. Educational training to include conservatories or studios: Art, dancing or music,
trade schools
9. Restaurants and cafes, including drive-through
10. Restaurants and cafes, including patios, cocktail lounges, and outside dining and
drinking areas, provided there is no amplified entertainment or music audible off-
site
11. Feed stores
12. General Retail
13. Offices
14. Professional Office
15. Plant nurseries and greenhouses (wholesale only) for the propagation, cultivation
and wholesale distribution of plants produced on the premises, provided such
uses do not include retail sales.
16. Temporary construction administration offices/yard complex which may include a
security office or residence for a security guard
17. Motion picture producing
18. Outdoor storage including wholesale and retail sales of landscape materials,
storage rental yards, construction yards and similar, interim industrial uses
19. Truck terminals, including service and storage
20. Warehousing, storage and wholesale distribution facilities
21. Battery Energy Storage Systems subject to condition
22. Data Centers with compensatory power generation
23. General Industrial Manufacturing
24. Light Industrial Manufacturing
25. Any other office, laboratory, manufacturing and assembling uses
26. Storage and maintenance of specialized machinery and equipment used
specifically in agriculture or rural areas
27. Parking lots and public garages
28. Privately owned or operated stations for fire protection, police or security service,
ambulance, or other emergency service providers
29. Public facilities such as libraries, museums, parks, playgrounds, community
buildings including police stations, post offices and other community service
buildings used for noncommercial non-profit purposes
30. Schools which include only K-12 public, private and charter schools
31. Public and private forests and wildlife reservations
32. Recreational open air facilities, including but not limited to lakes, swimming pools
and tennis courts. (This does not include personal recreation on private property.)
33. Utility-scale concentrating solar power (CSP) generating facilities or photo-voltaic
solar generating facilities of any output capacity are allowed as either a primary
or accessory use within the IND-2 zoning district subject to the development
standards of that district
34. Model home sales complex, temporary real estate offices and temporary
construction administrative offices/yard complex.
35. Public Utilities
Enhanced Development Standards:
1. All permitted uses must occur within closed buildings.
a. No outdoor storage, unless it is placed on the north side of structures and
fully screened by an 8-foot wall.
2. Building heights are restricted to one (1) story and a maximum height of 32 feet
(with parapet).
3. Building design shall incorporate enhanced design standards including, but not
limited to, earth-toned facades, glazing and fenestration elements, and articulating
rooflines.
D. Relationship to Surrounding Properties
The Site is comprised of approximately 1,687 acres located north of 339th Avenue and
Indian School Road, known historically as Hassayampa Ranch. The Site is generally located
north of the Interstate 10 (the “I-10”), west of the City of Buckeye, south of the approved
Belmont DMP, and east of the approved Belmont Industrial DMP. An existing sand and
Context Map
gravel mining operation is adjacent to the Site at its northeast corner.
The Belmont DMP, established in 1991, to the north of the Site allows for the development
of a diverse mix of future land uses, such as commercial, office, business, manufacturing,
and residential. Since its approval in 1991, shifts in the market have led to numerous
amendments to the Belmont DMP to respond to market demands. These amendments
have redistributed permitted uses throughout the Belmont DMP, to concentrate light
industrial and employment center uses near I-10 and adjacent to the Site.
One such amendment was the Belmont Industrial Major Comprehensive Plan Amendment
(“CPA”), which was approved by the Board of Supervisors in 2024. The Major CPA removed
5,000 acres from the Belmont DMP and redesignated with Heavy Industrial Future Land
uses.
Additionally, on January 28, 2026, the Board of Supervisors unanimously approved
Belmont 1080, located southwest of the Site and outlined in blue below. Belmont 1080
was rezoned from RU-43 to Heavy Industrial with an Industrial Unit Plan of Development
(IND-3 IUPD) to permit warehousing, data center, and power generation uses to be
developed.
Adjacent Zoning
The proposed Hassayampa Ranch IUPD light industrial development responds to the
changing vernacular of the area by offering a development that includes complementary
and synergistic land uses. The current request, which seeks to rezone the Site from
residential and commercial designations to IND-2 zoning, envisaging uses such as
warehouses, data centers, and power generation uses. The proposed designation will
work in concert with the approved uses in the surrounding area to create an employment
hub in close proximity to major transportation infrastructure.
E. Location and Accessibility
The Site is located north of the 339th Avenue and Indian School Road intersection.
Wickenburg Road runs along the western boundary of the Site. Future access to the Site
will be determined at the time of site planning.
F. Circulation System
Primary access is intended to be provided via 339th Avenue. Further access and circulation
have not yet been finalized since no end users have been identified at this time; however,
the intent is to provide a cohesive vehicular and pedestrian circulation system within the
Site and extend and improve roadways providing access to the Site, as determined
through the site planning process. A traffic engineer will be engaged to study the traffic
flows once end users are identified.
At the initial pre-application meeting, specific roadway alignments were identified to be
retained with the rezoning application. Several of those alignments did not factor in
existing geographic constraints internal to the Site. A MCDOT Right-of-Way Reservation
Request was approved on December 18, 2025, waiving the requirements for 331st Avenue
from Camelback Road to Bethany Home Road, 335th Avenue, and 323rd Avenue.
G. Development Schedule/Phasing
The intent is for the Site to be entitled in two phases. The Major CPA application was
approved by the Board of Supervisors on December 10, 2025. The current Zone Change
with IUPD Overlay request and the approved Major CPA application are the first phase of
entitlements. Plan of Development (“POD”) applications will be submitted as end users
for the Site are identified. The timing and phasing of development is to be determined.
H. Community Facilities and Services
Nearby school districts include the Saddle Mountain Unified School District, Buckeye
Elementary School District, and Buckeye Union High School District. The Site will be served
by the Maricopa County Sheriff’s Office and will establish fire protection services during
the site planning phase. The Site is located near a variety of outdoor recreational activities,
including the White Tank Mountain Regional Park, the Skyline Regional Park, ranches, and
trails.
I. Public Utilities and Services
Water
The Site is located within the Global Water – Hassayampa Utilities Company, Inc. service
area. The existing water system currently serves an area south of I-10 and there are no
water mains immediately adjacent to the Site. As the anticipated potable and non-
potable water demands at the Site may vary depending on the type of industrial use,
water for potable, production, and/or cooling purposes may be provided by private onsite
wells, by an expansion of Global Water’s existing water system to include additional wells,
storage, and water mains near the property, or by a combination of both.
Wastewater
The Site is located within the Global Water – Hassayampa Utilities Company, Inc. service
area. There are no existing sewer mains in the vicinity of the Site. As the anticipated
wastewater flows from the Site will vary depending on the type of industrial use, the Site
may be served by individual septic tanks serving each building and/or parcel, or by a
network of gravity sewer mains that would convey flows south to a future package
wastewater treatment plant that would be located near the Site.
Electric
The project is located within the APS service area for electric. Currently, APS has a lower
voltage service in the project vicinity. Extending higher voltage for a heavier power user(s)
will take more time. We expect to work with APS on a Feasibility Study to evaluate options
for the Site and are currently working other options for power service, such as natural gas
and other behind-the-meter solutions.
Drainage and Grading
The topography of the Site is varied and comprised of gently sloped terraces, hillside,
ridges, washes, and floodplains. The Site is located just west of the confluence of the
Hassayampa River and Jackrabbit Wash, with the wash traversing the northeastern corner
of the property. The proposed use of drainage channels and placement of fill will allow
for potential floodplain reclamation while largely preserving the historic flow patterns of
the existing washes. This approach, in combination with adherence to Maricopa County’s
drainage design guidelines, helps to ensure no adverse stormwater impacts to adjacent
properties. This approach also effectively increases the developable area and enhances
the overall efficiency and flexibility of the site plan.
J. Compliance with the Comprehensive Plan and
Tonopah/Arlington Area Plan
On December 10, 2025, the Board of Supervisors unanimously approved a Major
Comprehensive Plan Amendment to remove the Site from the Hassayampa Ranch DMP
and redesignate it as Industrial. The rezoning request is also consistent with the Industrial
designation in the Comprehensive Plan, as discussed in greater detail below.
The stated purpose of the Comprehensive Plan is to maintain a high quality of life for
Maricopa County residents by protecting public health and safety, promoting stable
economic growth, maintaining a healthy environment, providing adequate community
services, and ensuring that tax money is spent efficiently. The Comprehensive Plan utilizes
three core principles to guide future development to achieve its stated purpose:
1. “Decisions should support implementation of Maricopa County’s mission
statement and strategic priorities;
2. Maintain a disciplined approach where comprehensive plan policies and growth
related decisions are understandable, measurable, consistent, practical and
promote efficiency. Land use decisions are also based on these factors;
3. Avoid future problems by carefully considering past decisions.”
Maricopa County Vision 2030 Comprehensive Plan. The Site is also located within the
Comprehensive Plan’s Tonopah/Arlington Area Plan (the “Area Plan”), which advances
additional goals and policies designed to accommodate the growth anticipated in the
area. These goals and policies relate to land use, transportation, the environment, and
economic development.
The proposed rezoning furthers the goals of the Comprehensive Plan and the Area Plan
by proposing uses that provide an opportunity for economic growth, as anticipated by
the area plan, while remaining respectful to the surrounding rural community. The
proposal will permit a wide array of future industrial and employment uses that are flexible
enough to respond to market conditions, but stable enough to provide long-term
employment opportunities and further economic prosperity in the area.
Further, the Site is the ideal location for these future uses given its close proximity to
major transportation infrastructure and the synergistic development patterns in the
surrounding context. The natural terrain will be respected by utilizing natural
drainageways to preserve historic flows and minimize impact on adjacent properties. If
approved, the development will result in land uses that are sensible, consistent, practical,
and balanced across the Tonopah/Arlington Area Plan.
K. Conclusion
The purpose of this request is to seek an IND-2 Zone Change with IUPD Overlay for
approximately 2,077 on the site historically known as Hassayampa Ranch. This request will
permit the Site to develop with future light industrial uses, such as warehouse, data center,
and power generation uses, while also building in flexibility to attract a wide array of light
industrial users. The proposed rezoning will foster long-term and short-term employment
opportunities and promote economic prosperity in the region.
Page 1 of 2
Anh Harambasic, PE
Planning & Development
301 W. Jefferson St., Suite 170
Phoenix, Arizona 85003
Phone: (602) 506-3611
www.maricopa.gov/planning
Email address:
anh.harambasic@maricopa.go
v
Planning & Development
Engineering Plan Review
Date:
January 14, 2026
Memo To: Darren Gerard, AICP, Planning Manager, Department of Planning &
Development
Attn:
Andrew Lorentzen, Planner, Planning & Development Services
From:
Anh Harambasic, P.E. Engineering Plans Reviewer, Planning and
Development Services.
cc:
Doug Jones, P.E., Engineering Supervisor, Planning & Development
Services
Subject:
Zone Change request without a plan of development for Hassayampa
Ranch PA250116
Job Site Address: North of 339th Ave and Indian School Road
APN(s):
504-03-010B, 504-03-010A
This application is requesting in their narrative a zone change from mixed use for the
Hassayampa Ranch master plan (R1-6, R-2, RU-43, C-O, C-1, PAD) to Industrial use
(IND-2, IUPD) which may include future warehouse, data center and power generation
use. The subject area is approximately 2,077 acres. This zone change application
was presented without a plan of development, currently no end users for the
site have been identified.
PND Engineering Plan Review (DPR, FCD and PND Transportation) has reviewed the
1st submittal of the zone change request application routed for review on 12.31.2025
and has no objections to the zone change subject to the following conditions:
1. There is currently no County access to the site from the south. The County
completed Hidden Waters Parkway North feasibility study in 2012. The
applicant shall refer to the preferred alignment study and coordinate with
MCDOT to determine accessibility of the site.
2. Wash T2N-R5W-S33E ultimately outfalls into the Hassayampa River. Site
also contains the Hassayampa River itself. Refer to Arizona Department of
Environmental quality for a list of protected surface waters (PSWL) and
Waters of the U.S. (WOTUS), regulated under the Clean Water Act and
ADEQ requirements. Consult ADEQ for Hassayampa River which may be
regulated by ADEQ as a federally protected water.
3. Engineering and drainage review was based on a zone change without a plan
of development. Therefore, without the submittal of a precise plan of
Page 2 of 2
development, no development approval is inferred by this review, including,
but not limited to number of proposed building lots/units, drainage design,
access and roadway alignments. These items will be addressed as
development plans progress and are submitted to the County for further review
and/or entitlement.
4. Engineering review of re-zone cases is conceptual in nature. All development
and engineering design shall be in conformance with Section 905 of the
Maricopa County Zoning Ordinance; Drainage Policies and Standards;
Floodplain Regulations for Maricopa County; MCDOT Roadway Design
Manual; and current engineering policies, standards and best practices at the
time of application for construction.
5. The County does not provide fire service, therefore, it is incumbent that the
applicant seek service and approval of plans from the jurisdictional fire service
provider.
Please contact me if you have any questions or require any additional information.
Page | 1
Subdivision
Infrastructure
& Planning Program
301 W. Jefferson St.
Phoenix, AZ 85003
S u b d i vi s io n @ m a ri co p a .go v
e s d .m a r i c o pa .g o v
The Maricopa County Environmental Services Department (MCESD) has completed review
for the Hassayampa Ranch planning case(s). Please note the following MCESD requirements
for site development:
Onsite Wastewater (Septic) –
A Notice of Intent to Discharge application for a septic system is required for any
construction. Application must be submitted to the MCESD Onsite Wastewater Program.
•
Wastewater is not permitted to discharge to an adjacent parcel’s septic system.
•
If conducting food service in unincorporated Maricopa, a grease trap will be
required by Onsite Wastewater program.
•
Setback requirements must be maintained per Arizona Administrative Code, Title
18, Chapter 9, Article 312, C (Features Requiring Setbacks).
Projected flows between 3,000 and 24,000 gallons per day require a 4.23 General Permit
and may require nitrogen treatment.
If the wastewater flow exceeds 24,000 gpd or if an activated sludge treatment process is to
be used, then a wastewater treatment plant may be required.
•
Additionally, an Individual Permit through the Arizona Department of
Environmental Quality (ADEQ) may be required.
•
Please contact the Water/Wastewater Treatment Program at (602) 372-2861 or
email treatmentplantprogram@maricopa.gov for additional information.
For Onsite Wastewater related questions, please contact the Onsite Program at (602) 506-
6666 or by email at septicquestions@maricopa.gov.
Project Name: Hassayampa Ranch
Primary Contact Name: Wendy Riddell
Planning Application Type: Zone Change
with Overlay
APN(s): 504-03-010
Reviewer: Elliott Wheaton, P.E.
Email: Elliott.Wheaton@maricopa.gov
Phone: 602-376-6035
Planner Name: Andrew Lorentzen
Planning Case #: Z250047
Date: January 15, 2026
Water and Waste Management Division
Page | 2
Drinking Water –
Per the Safe Drinking Water Act, any water system that supplies more than 25 people or 15
service connections per day for at least 60 days per year is classified as a Public Water
System (PWS).
•
If the above criteria are met, a Public Water System application and a New Source
Approval application are required and must be submitted to the MCESD’s Drinking
Water Program. A water quality analysis report will be required with submittal and is
good within one-year of testing.
An Approval to Construct application is required to be submitted to the MCESD’s Treatment
Program for all PWS water treatment facilities.
•
For questions, please contact the Water/Wastewater Treatment Program at (602)
372-2861 or email treatmentplantprogram@maricopa.gov
An Approval to Construct application is required to be submitted to the MCESD’s
Subdivision & Infrastructure Program for all PWS water system infrastructure.
•
For questions, please contact the Subdivision and Infrastructure Program at (602)
506-1058 or email subdivision@maricopa.gov
For additional Drinking Water related questions, please contact the Drinking Water program
at (602) 506-6935 or by email at sdwquestions@maricopa.gov.
Subdivision Infrastructure and Planning –
An Approval to Construct application is required and must be submitted to MCESD’s
Subdivision & Infrastructure Program for water, reclaimed water and/or wastewater system
infrastructure.
A Water Service Agreement signed by the Utility is required and must be submitted to
MCESD’s Subdivision & Infrastructure Program if the site/development will be provided with
water and/or reclaimed water by a Utility. A Capacity Assurance Form issued by the Utility
is required to MCESD’s Subdivision & Infrastructure Program if the site/development
wastewater service is being provided by a Utility.
For subdivision related questions, please contact the Subdivision and Infrastructure
Program at (602) 506-1058 or email subdivision@maricopa.gov.
Water/Wastewater Treatment –
An Approval to Construct application is required to be submitted to the Water/Wastewater
Treatment Program for all wastewater treatment facilities.
Page | 3
An Aquifer Protection Permit (APP) is required for all new wastewater treatment facilities or
existing wastewater treatment facilities being modified. The Arizona Department of
Environmental Quality (ADEQ) reviews, approves and issues APPs.
•
Please contact ADEQ’s Groundwater Protection Program at (602) 771-4999 or email
azpdes@azdeq.gov for additional information about this requirement.
An Arizona Pollution Discharge Elimination System (AZPDES) permit is required for
discharges to the ‘Waters of the United States’. The ADEQ reviews, approves and issues
AZPDES permits.
•
Please contact ADEQ’s Surface Water Protection Program at (602) 771-1440 or
email azpdes@azdeq.gov for additional information about this requirement.
Note:
•
A MAG 208 certification or amendment may be required if an AZPDES discharge is
implemented or modified.
o Please contact MAG’s Water Quality Advisory Committee at (602) 254-6300
or email mag@azmag.gov for additional information about this
requirement.
A Maricopa Association of Governments (MAG) 208 plan certification is required if the new
wastewater facility/system is not already identified in the existing MAG 208 plan. The MAG
reviews and approves MAG 208 plan certifications.
•
Please contact MAG’s Water Quality Advisory Committee at (602) 254-6300 or
email mag@azmag.gov for additional information about this requirement.
Note:
•
A MAG 208 certification must be obtained prior to an Approval To Construct
application being submitted to the MCESD’s Treatment Program.
A Maricopa Association of Governments (MAG) 208 plan amendment is required if the
proposed modifications to the wastewater facility/system is not already identified in the
existing MAG 208 plan. The MAG reviews and approves MAG 208 plan amendments.
•
Please contact MAG’s Water Quality Advisory Committee at (602) 254-6300 or
email mag@azmag.gov for additional information about this requirement.
Note:
•
A MAG 208 amendment must be obtained prior to an Approval To Construct
application being submitted to the MCESD’s Treatment Program.
An Approval to Construct application is required to be submitted to the Water/Wastewater
Treatment Program for all reuse facilities.
A Reclaimed Water Permit is required for all new reuse facilities or existing reuse facilities
being modified. The ADEQ reviews, approves and issues Reclaimed Water permits.
•
Please contact ADEQ’s Water Reuse Program by email at waterreuse@azdeq.gov
for additional information about this requirement.
Page | 4
For treatment related questions, please contact the Water/Wastewater Treatment Program
at (602) 372-2861 or email treatmentplantprogram@maricopa.gov.
Additional Notes –
*It should be noted that this document does not approve the referenced project. Comments are provided
for the benefit of the applicant for MCESD permit requirements and as an advisory to Maricopa County
Planning and Development Department. Other Maricopa County agencies may have additional
requirements. Final review and approval will be made through Planning and Development Department
procedures. Applicant may need to submit separate applications to the Maricopa County Environmental
Services Department for approval of proposed facilities regulated by the Department. Review of any such
application will be based on current regulations at the time of application.
Engineering Division
2901 W. Durango Street
Phoenix, Arizona 85009
P: 602.506.4889
F: 602.506.5969
MCDOT Planning TAC Comments
Date: January 20, 2026
TAC Assigned Number: Z250047
APN: 504-03-010B & A
Description of Request: Rezone POD to IND-2 IUPD for data center
Project Name: Hassayampa Ranch
Reviewer Contact Information
For any questions related to the comments herein please contact MCDOTPlanning@maricopa.gov
or 602-506-4619.
1st Submittal Comments
• Per the MCDOT Right of Way Reservation Request submitted on 10/16/2025 the following
three items below have been approved to the following:
o 0-feet for 331st Avenue from Camelback Road to Bethany Home Road
o 0-feet for 335th Avenue
o 0-feet for 323rd Avenue
• The following six items require preservation per the Maricopa County Zoning Ordinance
Section 805.
o Bethany Home Road is classified as an urban principal arterial requiring
preservation of a 65-foot half street from the section line.
o Camelback Road is classified as an urban parkway requiring preservation of a 100-
foot half street from the section line.
o Hidden Waters Parkway is classified as an urban parkway requiring preservation of
a 100-foot half street from the center line.
o Indian School Road is classified as an urban principal arterial requiring preservation
of a 65-foot half street from the section line.
o 343rd Avenue is classified as an urban major collector requiring preservation of a 40-
foot half street from the mid-section line.
o 331st Avenue from Indian School to Camelback Road is classified as an urban
principal arterial requiring preservation of a 65-foot half street from the section line.
1
Andrew Lorentzen (PND)
From:
Joseph Mueller <jmueller@buckeyeaz.gov>
Sent:
Tuesday, February 10, 2026 2:36 PM
To:
Andrew Lorentzen (PND)
Subject:
Z250047 - Hassayampa Ranch Rezone
This Message Is From an External Sender
This message came from outside your organization. Please use caution when corresponding outside the county.
Good afternoon, Andrew,
Thank you providing city staff opportunity to review and comment on the proposed rezoning
application. The subject property is outside of, but adjacent to the city's planning boundary.
City staff have no objections to the proposed zoning, as long as development of industrial uses does not
occur until the site has access to appropriate utilities.
City staff notes that the site does contain environmentally sensitive areas and appreciates the narrative
highlighting hillside and wash areas that serve as wildlife habitat and corridors. Jackrabbit Wash runs
through the site and the confluence of Jackrabbit Wash and the Hassayampa River is immediately
adjacent to the site. Staff requests that the final narrative addresses these areas and ultimate
development of the site preserves these items to the fullest extent practical. Staff would appreciate
buffers to these lands be included in IUPD standards but it should be noted lack there of would not
impact the neutral stance of no objection to the proposal.
City staff requests coordination with the White Tank Mountains Conservancy before the rezoning goes
before PZ, if you have not done so already.
Staff would prefer ultimate development of the site to mirror the city's design requirements and
standards, to the fullest extent possible.
Any noteworthy indigenous Sonoran flora should be salvaged and incorporated into site landscaping, or
appropriately transplanted off site, when possible.
Please route any updates to the submittal documents to city staff and keep us informed if/when the case
is scheduled for hearing.
Kind regards,
Joseph Mueller
Senior Planner
Development Services Department
(623) 204-5505
2
This message contains confidential information and is intended only for the individual(s) addressed in
the message. If you are not the named addressee, you should not disseminate, distribute, or copy this e-
mail. If you are not the intended recipient, you are notified that disclosing, distributing, or copying this e-
mail is strictly prohibited.
February 13, 2026
Mr. Andrew Lorentzen
Planning & Development
Maricopa County
301 W. Jefferson St.
Phoenix, AZ 85003
Electronically submitted to: Andrew.Lorentzen@maricopa.gov
RE:
Z250047 - Hassayampa Ranch Rezoning
Dear Mr. Lorentzen:
The Arizona Game and Fish Department (Department) appreciates the opportunity to review
Maricopa County Case No. Z250047 for the Hassayampa Ranch Rezoning (Project). The
Department understands that Berry Riddell LLC is proposing to rezone the Project site from a
mixture of residential and commercial uses with Planned Area Development (PAD) overlays, to
IND-2 (Light Industrial) with an IUPD (Industrial Unit Plan of Development) overlay in order to
allow for a variety of industrial uses such as warehouses, data centers, and power generation
facilities. The Department understands that this rezoning proposal includes approximately 2,077
acres of privately-owned land, and that 1,550 acres are able to be developed due to the natural
topography of the site. The Project is located north of 339th Avenue and Indian School Road, an
area known historically as Hassayampa Ranch, on primarily undisturbed Sonoran desert scrub
habitat in Maricopa County, Arizona.
Under Title 17 of the Arizona Revised Statutes, the Department, by and through the Arizona
Game and Fish Commission, has jurisdictional authority and public trust responsibilities to
conserve and protect the state fish and wildlife resources. In addition, the Department manages
threatened and endangered species through authorities of Section 6 of the Endangered Species
Act and the Department’s Section 10(a)(1)(A) permit. It is the mission of the Department to
conserve and protect Arizona's diverse fish and wildlife resources and manage for safe,
compatible outdoor recreation opportunities for current and future generations. For your
consideration, the Department provides the following comments based on the agency's statutory
authorities, public trust responsibilities, and special expertise related to wildlife resources and
recreation.
It is the Department’s understanding that this site may be utilized for a variety of industrial
purposes, including energy generation and storage. If energy generation and/or storage is
AZGFD - Z250047 - Hassayampa Ranch Rezoning
February 13, 2026
Page 2
identified within future site plans, and when more detailed site plans have been developed for the
Project, the Department is available to provide project-specific recommendations pertinent to
energy generation facilities. Please reference the Department’s Wildlife Friendly Guidelines
webpage for recommendations specific to energy generation projects.
Maintaining habitat connectivity is a priority for the Department, and wildlife movement
corridors are important for wildlife to respond to changing environmental conditions. The
Department notes that the eastern side of the Project area includes a portion of the Jackrabbit
Wash and is adjacent to the Hassayampa River, which both provide important movement
pathways for wildlife. The Department would like to meet with Berry Riddell LLC to discuss
opportunities to incorporate wildlife connectivity into the Project area, and provides the
following recommendations to incorporate wildlife connectivity into future Project designs:
● The Department recognizes riparian habitats as areas of environmental importance to
wildlife and encourages management practices that maintain current riparian areas in
their natural state and without barriers to the extent practicable. Based on the information
provided in the Site Constraints map on page six of the Project narrative, it is the
Department’s understanding that much of the natural topography within the site, such as
the riparian areas along Jackrabbit wash and the Hassayampa River, will be maintained.
The Department appreciates that the Project design will minimize impacts on riparian
areas. If avoidance is not possible, the Department generally recommends maintaining a
buffer of 200 feet around riparian areas, to the extent feasible. The Department is
available to assist in determining appropriate setbacks and other measures within the
Project area, as needed.
● The Department’s Wildlife Compatible Fencing Guidelines provide information on how
1
fencing impacts wildlife and ways to design fencing to prevent wildlife entanglement and
impalement. Department personnel are available as resources to help determine
appropriate fencing design and layout that will achieve its objective while reducing
impacts on wildlife.
The Department recommends conducting surveys in the Project area to determine species
presence. These surveys should be of sufficient duration and intensity to adequately assess all
habitat types and potential wildlife species occurrence in and adjacent to the Project area.
Department staff are available to assist in determining appropriate surveys to conduct as well as
recommend design features and best management practices that can help minimize potential
impacts. Based on the information provided, the Department offers the following
recommendations to reduce potential impacts to wildlife and habitat:
● The western burrowing owl, a special status species that is regulated under the Migratory
Bird Treaty Act (MBTA), could occur in the vicinity of the Project area. The Department
recommends conducting occupancy surveys for this species in advance of the design
phase of future development to understand distribution of burrowing owls in the Project
site; avoidance of a large burrowing owl population may be advisable over removal or
other conservation measures. Guidelines for conducting this survey are found in
1 https://s3.amazonaws.com/azgfd-portal-wordpress/PortalImages/files/wildlife/planningFor/wildlifeFriendlyGuidelines/
110125_AGFD_fencing_guidelines.pdf
AZGFD - Z250047 - Hassayampa Ranch Rezoning
February 13, 2026
Page 3
Burrowing Owl Project Clearance Guidance for Landowners . Please note that the survey
2
should be conducted by a surveyor who is certified by the Department or has similar
training and qualifications. If an active burrowing owl burrow is detected, please contact
the Department and the U.S. Fish and Wildlife Service (USFWS) for direction, in
3
accordance with the guidelines.
● The Department also recommends conducting surveys for nesting birds prior to
vegetation removal and/or construction activities that occur during the breeding season,
which is January through May in this area. The vegetation within the Project area may
provide nesting opportunities for avian species that are regulated under the MBTA. If it is
anticipated the Project will not be in compliance with the MBTA, the Department
recommends contacting the USFWS for technical assistance.
○ The Bendire’s and LeConte’s thrashers are special status species that are also
regulated under the MBTA and have the potential to occur within the Project area.
The Department recommends conducting call surveys for thrashers in addition to
the nesting bird surveys prior to vegetation removal and/or construction activities
that occur during the breeding season. Thrashers are harder to detect without call
surveys and may be missed if just nesting surveys are conducted. Please reference
the Desert Thrashers Working Group’s Conservation of Bendire’s and LeConte’s
Thrashers at Solar Development Sites which outlines how to determine
4
occupancy of thrashers and design considerations if present.
● Burrowing species, such as badger and kit fox, could occur within the Project area and
could be influenced by construction activities and loss of habitat. Surveys for these
species are recommended to determine their presence and inform pre-construction
activities. Department staff are available to assist in identifying suitable conservation
measures, such as one-way exclosures on burrows that allow wildlife to exit the burrows
and disperse to adjacent lands in advance of construction.
● The Sonoran desert tortoise is a federal and state species of special concern, and suitable
habitat for the Sonoran desert tortoise may be present within or adjacent to the Project
area. While work is being conducted within suitable Sonoran Desert tortoise habitat,
construction crews should refer to the Sonoran Desert Tortoise Conservation Guidelines
5
for general handling guidelines for this species should a tortoise be encountered.
Finally, the Department offers the following general recommendations to reduce potential
impacts to wildlife and habitat during construction and operation of future facilities:
● A variety of other Arizona Species of Greatest Conservation Need (SGCN), such as the
lowland leopard frog and the yellow-billed cuckoo, have the potential to occur within the
Project area; please reference the attached HDMS report (HGIS-27295) for a list of
species documented within the vicinity of and predicted to occur within the Project area.
If wildlife are encountered during Project activities, the Department recommends moving
5 https://azgfd-portal-wordpress-pantheon.s3.us-west-2.amazonaws.com/wp-content/uploads/2025/01/16114611/
Rubke-2024.-Sonoran-Desert-Tortoise-Conservation-Guidelines.pdf
4 https://borderlandsbirds.org/wp-content/uploads/2024/09/Desert-Thrasher-Solar-Recommendations-1.0.pdf
3 https://www.fws.gov/office/arizona-ecological-services/contact-us
2 https://s3.amazonaws.com/azgfd-portal-wordpress/PortalImages/files/wildlife/nongame/eagles/BurrowingOwlClearanceProtocol
_2009.pdf
AZGFD - Z250047 - Hassayampa Ranch Rezoning
February 13, 2026
Page 4
them out of harm’s way, no more than 0.25 mile outside the Project boundary within
similar habitat. The Department has an interactive website, Arizona Wildlife
Conservation Strategy , that includes the most recent list of SGCN to help navigate and
6
identify conservation opportunities.
● If trenching or digging of large holes will occur, the Department recommends that
trenching/digging and backfilling crews work closely together to minimize the number of
open holes/trenches at any given time. Where trenches/holes cannot be backfilled
immediately, the Department recommends escape ramps be constructed in each hole and
at least every 300 feet in trenches. Escape ramps can be short lateral trenches or wooden
planks sloping to the surface, and ramp slopes should be less than 45 degrees (1:1).
Trenches or holes that have been left open should be inspected for animals and any
animals removed prior to backfilling.
● Artificial lighting could impair the ability of nocturnal animals to navigate (e.g., owls,
migratory birds, bats, and other nocturnal mammals) and may affect wildlife behavior
and populations (Davies et. al. 2013 ). The Department recommends using only the
7
minimum amount of light needed for safety. The Department encourages the use of
motion sensing lighting and “warmer” narrow spectrum lighting (amber, orange, red) as
often as possible to minimize the number of species affected by lighting. It is also
beneficial that all lighting is shielded, canted, or cut to minimize the amount of upward
shining light.
● Please ensure the Project complies with Arizona Native Plant Law regulations. A Native
8
Plant Inventory may need to be conducted to identify, record, and coordinate plant
salvage efforts for species that are Protected under the Arizona Native Plant Law.
● To minimize the potential introduction or spread of exotic invasive species, including
aquatic and terrestrial plants, animals, insects, and pathogens, the Department encourages
taking precautions to wash and/or decontaminate equipment before entering and leaving
the site. See the Arizona Department of Agriculture website for a list of prohibited and
9
restricted noxious weeds and the Arizona Native Plant Society for recommendations on
10
how to control them. To view a list of documented invasive species or to report invasive
species in or near the Project area, visit iMapInvasives , which is a national cloud-based
11
application for tracking and managing invasive species.
○ Stinknet is a highly invasive noxious winter weed native to South Africa, and is
extremely flammable when dry. Stinknet (also known as globe chamomile) has
heavily infested Maricopa, Pinal, and Pima counties and is expanding into Yuma,
Yavapai, and Gila counties. Infestations spread rapidly along highways and open
fields in residential areas. Emergence starts in late November and plants can
continue to germinate and emerge through May in wet years. In order to minimize
the spread of this plant it is critical that any new infestations are identified and
quickly managed. Additional information is available through the Southwest
11 https://imap.natureserve.org/imap/services/page/map.html
10 https://aznps.com/invas
9 https://agriculture.az.gov/pestspest-control/agriculture-pests/noxious-weeds
8 https://agriculture.az.gov/plantsproduce/native-plants
7 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3657119
6 https://awcs.azgfd.com
AZGFD - Z250047 - Hassayampa Ranch Rezoning
February 13, 2026
Page 5
Vegetation Management Association , the Sonoran Desert Cooperative Weed
12
Management Area , or the Arizona Native Plant Society .
13
14
● If disturbed areas will be revegetated after construction, the Department recommends
revegetating with native drought-tolerant species that represent the natural surrounding
landscape. Landscaping with native plants can help support wildlife and pollinator
species in the area, reduce dust and erosion, and help limit the spread of non-native,
invasive plant species.
The Department appreciates the opportunity to provide input on Maricopa County Case No.
Z250047 - Hassayampa Ranch Rezoning, and would like to meet with Berry Riddell LLC to
discuss opportunities to minimize potential impacts to wildlife. For further coordination, please
contact Teigan Williams at tstruck@azgfd.gov or (928) 341-4069.
Sincerely,
Danielle Klaas
Regional Supervisor, Yuma
cc:
Callie Cavalcant - Habitat, Evaluation, and Lands Branch Chief
AZGFD #M26-01151051
14 http://aznps.com
13 https://www.sdcwma.org/species/stinknet.php
12 https://www.swvma.org/
1
Andrew Lorentzen (PND)
From:
Leesa Milner <lmmilner2000@yahoo.com>
Sent:
Saturday, February 21, 2026 7:47 PM
To:
Andrew Lorentzen (PND)
Subject:
Case #Z250074 Hassayampa Ranch
This Message Is From an Untrusted Sender
You have not previously corresponded with this sender. Please use caution when you receive messages from new senders.
Always validate the sender first.
Leesa Milner
Lmmilner2000@yahoo.com
2/21/2026
Andrew Lorentzen
Marcos Planning & Development Dept
301 W. Jefferson St. Suite 170
Re: Formal Opposition to Proposed case # Z250074 Hassayampa Ranch 1.5 GW Data Center Project
Dear Andrew Lorentzen,
I am writing to unequivocally oppose the proposed development of the 1.5 GW data center at
Hassayampa Ranch near Tonopah and Buckeye, Arizona. This project — which would transform over
2,000 acres of desert landscape from long-planned community land into an industrial campus — raises
profound and unacceptable concerns for the residents, environment, and public resources of this
region.
While acknowledging economic development goals, the magnitude of this project demands sober
scrutiny of its very real and documented impacts:
1. Unsustainable Water Demand in a Water-Scarce Region
Arizona already faces persistent drought and mounting pressure on groundwater. Data centers, by their
nature, are extremely water-intensive — with large facilities consuming millions of gallons of water daily
for cooling and related operations — severely straining regional aquifers and local supplies.
Placing such a colossal user next to communities that depend on wells imperils residents’ access to life-
sustaining water while contributing little to meeting public water needs. Neighbors have rightfully voiced
alarm about water use and risk to rural wells.
2
2. Excessive Electricity Use and Strain on the Grid
A 1.5 GW data center demands extraordinary levels of electrical power around the clock. This not only
compounds Arizona’s already high grid demand but also risks shifting the costs of necessary
infrastructure upgrades — including generation capacity and transmission — onto residential ratepayers
rather than the corporations that profit from this development.
Compounded electrical loads can lead to higher utility rates while accelerating reliance on fossil fuel
generation, thereby raising greenhouse gas emissions and local pollution.
3. Noise Pollution and Quality of Life Impacts
The constant operation of industrial-scale cooling systems, backup generators, and associated
equipment produces pervasive noise pollution that degrades rural quality of life. This is not theoretical:
other Arizona communities, such as Chandler, have documented significant noise issues from existing
data centers, with residents describing continuous humming that disrupts daily life.
4. Environmental Degradation and Loss of Habitat
Transforming pristine desert land into an industrial campus destroys critical wildlife habitat and disrupts
ecological balances. The Hassayampa Ranch area, like much of rural Arizona, supports native species
and natural landscapes that are irreplaceable once altered. Numerous neighbors and stakeholders in
surrounding communities have raised concerns about wildlife impacts, dust, traffic, and visual
degradation of the landscape.
5. Insufficient Local Benefit and Economic Trade-offs
Data centers generate few permanent jobs relative to their scale and economic footprint while
consuming vast public resources. Their footprint also occupies land that could support diversified
employment, housing, and community development. Approving such a massive project in a rural
community without clear, enforceable public benefit commitments undermines meaningful local input
and planning.
For these reasons — critical resource demands, environmental degradation, threats to community
health and well-being, and an inequitable distribution of impacts versus benefits — I urge the Board of
Supervisors to halt the progression of this project through the approval process until rigorous,
transparent studies and enforceable mitigation measures are completed and residents’ concerns are
fully addressed. Development must not come at the expense of our water security, air quality, rural
character, and environmental heritage.
Thank you for your consideration.
Sincerely,
Leesa Milner
Sent from my iPhone
1
Andrew Lorentzen (PND)
From:
Patrick Julian <patrick.julian85@yahoo.com>
Sent:
Tuesday, February 24, 2026 6:51 AM
To:
Andrew Lorentzen (PND)
Subject:
Case # Z250074 HASSAYAMAPA RANCH
This Message Is From an Untrusted Sender
You have not previously corresponded with this sender. Please use caution when you receive messages from new senders.
Always validate the sender first.
Case # Z250074 HASSAYAMAPA RANCH
Good morning,
I am emailing you today to state my objection of the Hassayamapa Ranch Data center. As a Buckeye
resident with children I am extremely concerned about the environmental impact this will have on our
local area and its water resources. We are currently in a global water bankruptcy and here in the desert
we are at an increased risk of water instability. I highly urge you to please reconsider placing this data
center in this area. Please for our children’s future, our home values, our way of life, please please we
ask you to reconsider building this facility!
I appreciate your time and attention to this issue.
Thank you and have a great day,
Patrick Julian
1
Andrew Lorentzen (PND)
From:
Bill Pearsall <pearsall.bill@gmail.com>
Sent:
Tuesday, February 24, 2026 11:13 AM
To:
Andrew Lorentzen (PND)
Subject:
Case # Z250074 HASSAYAMAPA RANCH
This Message Is From an Untrusted Sender
You have not previously corresponded with this sender. Please use caution when you receive messages from new senders.
Always validate the sender first.
Good morning Andrew,
Our family has lived in this area for 27 years and we feel our we our livability is threatened. While we
know that development will come we implore you to consider restrictions on the way resources are
extracted such as water.
The current residents that would be impacted in an estimated 10 mile radius by water tables dropping
would be substantial. The residential wells have all been drilled to a certain depth to accommodate
normal fluctuations. Dramatic drops in the groundwater level over the coming years that would result
from excessive pumping would have a catastrophic financial impact. Most of us would have to re-drill
our wells to a much deeper level.
Please consider restrictions on ground water pumping that would be sustainable for residents in
the area.
There are other impacts that we do not look forward to but this is by far the most impactful.
Thank you Andrew for considering the feedback of the residents in the area and working with Ron and
Cathy.
Sincerely,
Bill and Tonya Pearsall
33514 W. Indian School Rd.
DATE:
March 5, 2026
TO:
Planning & Zoning Commission
From:
Andrew Lorentzen, Planner
SUBJECT:
Z250047 – Hassayampa Ranch
Agenda Item: #8
After printing of the staff report, the applicant continued to work with neighbors on additional
issues concerning the future development of the parcel. The below amended and additional
conditions have been proposed by the applicant and accepted by staff:
a. Development of the site shall be in substantial conformance with the Narrative Report
entitled “Hassayampa Ranch”, consisting of 13 pages, dated February 9, 2026, except as
modified by the following conditions. The narrative shall be updated within 30 days of BOS
approval to reflect the Solar Exclusion Zone.
c. The following IND-2 IUPD standards shall apply:
1. Maximum Building Height – 85’, 32’ within 300’ from the southern property line,
as described in the narrative as the Buffer Zone.
2. Minimum Side Setback - 0’, except when abutting a rural or residential zoning
district, then 50’.
3. Minimum Rear Setback – 0’, except when abutting a rural or residential zoning
district, then 50’.
4. Additional Setback Required – 150’ when abutting the southern property line, as
described in the narrative as the Buffer Zone.
5. Minimum Parking - Warehouse/Data Center Uses: 1 space per 2,500 square feet
of floor area.
6. Minimum Screening - 6’ solid wall except 8’ solid wall when adjacent to a rural or
residential zoning district.
7. Permitted Uses – all uses permitted in the IND-2 zoning district, except there
shall be limited uses within the identified Buffer Zone and Solar Exclusion Zone,
and further that solar power generation shall be prohibited within 500’ of the
southern boundary where adjacent to existing residential, as identified in Figure
A, Solar Exclusion Zone, and wind power generation uses shall be prohibited in
the IND-2 IUPD zoning district.
j.
All outdoor lighting within the IND-2 IUPD zoning district shall comply with Maricopa
County’s outdoor light control provisions at time of permitting.
k.
The development shall dedicate the ultimate 65’ half-width right-of-way for
Bethany Home Road along the northern boundary of the IND-2 IUPD zoning district
with future entitlement application/s.
The applicant has provided updated buffer zone and solar exclusion zone exhibits which further
add additional detail and context to the proposed areas.
Staff also received 14 additional letters - 8 in opposition, and 6 in support. This raises total public
comment to:
14 in opposition
6 in support
The opposition has not triggered a super-majority vote of the Board. Approval will require a
majority vote of a quorum.
Attachments:
Updated Buffer Exhibit (1 page)
Solar Exclusion Zone Exhibit (1 page)
Opposition Comments (18 pages)
Support Comments (7 pages)
504-09-027X
MATA
JUAN
GUTIERREZ
504-09-027W
RIVALS
JAMES
504-09-027V
TREGUBOFF
KYLE
504-09-027U
FLETCHER
RONALD
W/KATHLEEN
G
504-09-027G
CAMPBELL
CHERISSE C
504-09-028A
CAMPBELL
CHERISSE C
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 1 (100'-150')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
BUFFER ZONE 2 (150'-300')
504-09-028U
REPU ROHIT K
504-09-053
REYES
JOSE/EDITH
504-09-054
REYES
JOSE/EDITH
504-09-028V
REPU ROHIT K
504-09-055
REYES
JOSE/EDITH
504-09-028W
REPU ROHIT K
504-09-027Q
HAWAIIAN
HOLDINGS
LLC
CAMELBACK RD ALIGNMENT (100' HALF ROW - REFERENCE ONLY, NOT DEDICATED)
CAMELBACK RD ALIGNMENT (PROPOSED 100' HALF ROW)
U:\_2025\25003666\25003666A - Arizona Land Consulting\PLANNING\ENTITLEMENT\REZONE\2nd SUBMITTAL\EXHIBITS\25003666_REZ - FIG01 NEIGHBORHOOD BUFFER LOCATION-300 ZONES 1-2.dwg
2/27/2026 2:31:35 PM
N
NOT TO
SCALE
Engineering
& Design
4742 N. 24th Street., STE. 270
PHOENIX, AZ 85016
P: 602.490.0535
F: 602.368.2436
Formerly
© 2026. COLLIERS ENGINEERING & DESIGN, INC. All Rights Reserved. This drawing and all the information contained herein is authorized for use only by the party for whom the services were contracted or to whom it is certified. This drawing may not be copied, reused, disclosed, distributed or relied upon for any other purpose without the express written consent of Colliers Engineering & Design.
PROJECT MANAGER:
R.GUBSER, AICP
PROJECT NUMBER: 25003666
FEBRUARY 27, 2026
MARICOPA COUNTY, ARIZONA
HASSAYAMPA RANCH
REZONE
FIGURE 1
BUFFER LOCATION - ZONES 1 & 2
355TH AVE
339TH AVE
SITE
SITE
CAMELBACK RD
TONOPAH SALOME HWY
(ALIGNMENT)
INDIAN SCHOOL RD
(ALIGNMENT)
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
347TH AVE (ALIGNMENT)
331ST AVE (ALIGNMENT)
BETHANY HOME RD (ALIGNMENT)
POTENTIAL
HIDDEN
WATER
PKWY
THIS PLAN IS CONCEPTUAL IN NATURE AND
MAY BE SUBJECT TO MODIFICATION THROUGH
THE DESIGN AND ENTITLEMENT PROCESS
1,040'
300' X 3200'
BUFFER ZONE
504-09-027X
MATA
JUAN
GUTIERREZ
504-09-027W
RIVALS
JAMES
504-09-027V
TREGUBOFF
KYLE
504-09-027U
FLETCHER
RONALD
W/KATHLEEN
G
504-09-027G
CAMPBELL
CHERISSE C
504-09-028A
CAMPBELL
CHERISSE C
504-09-027Q
HAWAIIAN
HOLDINGS
LLC
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
SOLAR
EXCLUSION
ZONE
CAMELBACK RD ALIGNMENT (100' HALF ROW - REFERENCE ONLY, NOT DEDICATED)
CAMELBACK RD ALIGNMENT (PROPOSED 100' HALF ROW)
U:\_2025\25003666\25003666A - Arizona Land Consulting\PLANNING\ENTITLEMENT\REZONE\2nd SUBMITTAL\EXHIBITS\25003666_REZ - FIG A - SOLAR EXCLUSION ZONE.dwg
3/4/2026 9:33:18 AM
N
NOT TO
SCALE
Engineering
& Design
4742 N. 24th Street., STE. 270
PHOENIX, AZ 85016
P: 602.490.0535
F: 602.368.2436
Formerly
© 2026. COLLIERS ENGINEERING & DESIGN, INC. All Rights Reserved. This drawing and all the information contained herein is authorized for use only by the party for whom the services were contracted or to whom it is certified. This drawing may not be copied, reused, disclosed, distributed or relied upon for any other purpose without the express written consent of Colliers Engineering & Design.
PROJECT MANAGER:
R.GUBSER, AICP
PROJECT NUMBER: 25003666
MARCH 4, 2026
MARICOPA COUNTY, ARIZONA
HASSAYAMPA RANCH
REZONE
FIGURE A
SOLAR EXCLUSION ZONE
355TH AVE
339TH AVE
SITE
SITE
CAMELBACK RD
TONOPAH SALOME HWY
(ALIGNMENT)
INDIAN SCHOOL RD
(ALIGNMENT)
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
HASSAYAMPA RIVER
347TH AVE (ALIGNMENT)
331ST AVE (ALIGNMENT)
BETHANY HOME RD (ALIGNMENT)
POTENTIAL
HIDDEN
WATER
PKWY
THIS PLAN IS CONCEPTUAL IN NATURE AND
MAY BE SUBJECT TO MODIFICATION THROUGH
THE DESIGN AND ENTITLEMENT PROCESS.
DIMENSIONS SHOWN ARE APPROXIMATE AND
WILL NEED TO BE FIELD VERIFIED THROUGH
SURVEY.
1985'
SOLAR
EXCLUSION ZONE
VICINITY MAP (N.T.S.)
1
Andrew Lorentzen (PND)
From:
Cherisse Campbell <ladyhawk3seas@gmail.com>
Sent:
Friday, February 27, 2026 10:15 PM
To:
Andrew Lorentzen (PND)
Subject:
Case # Z250074 HASSAYAMAPA RANCH
This Message Is From an Untrusted Sender
You have not previously corresponded with this sender. Please use caution when you receive messages from new senders.
Always validate the sender first.
Greetings,
This email is an objection to the request to rezone rural parcel #504-03-010B to Industrial (IND-2 UPD).
I own four parcels of land in the Hassayampa Ranch community: 504-09-028A, 504-09-028P, 504-09-027G, and 504-09-
027J. I am not merely a resident, but am also a small business owner, whose livelihood is threatened by this rezoning
request.
I previously created an online petition for electronic signatures of anyone with an interest in my small hatchery business
or the conservation of the environment, particularly the Hassayampa. It acquired more than 200 verified electronic
signatures. Based on the reasons expounded upon in the written petition and the supplemental reasons and information
I will disburse to you now, it would be irresponsible on a number of levels to approve this rezoning request and allow
this project to move forward in this area.
My personal land and my business property lie directly adjacent to the site targeted for rezoning. The success of my
hatchery business depends upon the stress-free existence of my free-range birds. They exercise natural mating, nesting,
and young-rearing behaviors not unlike wild turkeys and jungle fowl; natural life cycles which big industry and large-
scale construction WILL disrupt. The stress the birds would endure as a result of the planned development would be
hazardous to their overall health and well-being. Their flight response continuously triggered, compromising their
immune systems and making them more vulnerable to illness and death. Even if they could continue producing and
living under the strain... in good conscience, I could not continue putting my birds through such trauma, so I would likely
be compelled to close my hatchery doors. And with my personal hypersensitivity to anthropogenic lights and noises, my
own mental health would be threatened by the proposed development of this land.
My personal and professional concerns aside, I wanted to address some of the points made in the developer’s
project summary:
Pointed to in the report, as supporting evidence that industrializing this site would be compatible with the
type of land-use of surrounding properties, were two mining operations. Together, they come to maybe 300
acres. That is not nearly as extensive as the 2,077 acres under discussion. In truth, the only nearby operating
industry is the 100 to 200-acre sand and gravel mine east of the site. It cannot even be seen from my
properties, whereas this data center development will be bordering right up against it. However, one thing
worth noting, is that even though the closer mine cannot be seen, it can sometimes be heard from my
property if the wind is right, as can the I-10 freeway which is five miles away and says a lot about how sound
carries out here. Sounds miles away sometimes seem like they are right outside in my backyard, so I dread the
kind of noise this proposed project is going to be bringing to my front door. No matter what they say they are
going to do to reduce the noise pollution this development is going to emit, on top of the construction of it, it
simply will not be enough.
2
They claim in the report that they do not foresee the proposal adversely impacting the area through increased
traffic, and yet they also tout that the future planned use will create all these employment opportunities. If
that is to be believed, how can that not impact the area through increased traffic? Not to mention the traffic
and destruction of natural land that the mere construction process will cause, and all the noise, light, and dust
pollution associated with that. By the way, “planned uses” shouldn’t supersede the value of current uses
merely because they are the plans of a billionaire developer.
The claim that “the intent is to develop the Site synergistically with the existing rural uses and planned
industrial uses in the surrounding area” in response to affecting the livability in the area or health and
safety, is both laughably vague and contradictory. It is obvious this will negatively affect the mental and
physical health of nearby residents (most who choose to live out here away from industry,
specifically for mental and physical health reasons). There is no way around this negatively affecting the
livability (health and safety) of the area for current residents and the native wildlife.
The entire basis for choosing this site for data center development seems to be tied to Bill Gates’ Smart City
concept, which was first touted back in 2017. There has been no Belmont development since its purchase and
conception nearly a decade ago. And it’s being pointed to as if it justifies other plans for FURTHER
development, MORE natural resource depletion, because it will be “compatible to surrounding industrial”
sites. When in reality, this should just be another reason WHY this piece of land should NOT be rezoned to
Industrial, and instead preserved or protected from large-scale development. Accessing adequate water
supply for the proposed Belmont city in this drought area is going to be challenging enough without this
industrial development, a massive 1.5 gigawatt data center which could demand 10 million gallons of water
per day. And if air-cooling technology is used versus water-cooling, the impact to the electrical grid remains a
legitimate concern. At the very least, it would likely hike up our electric bills. At worst, we could expect
electrical shortages and even black-outs.
As a reminder, there are efforts underway for a national moratorium on the approval and construction of
new data centers, which more than 230 organizations are currently urging Congress to implement. Why?
Because of their unsustainable consumption of energy and water resources, and the associated rise of utility
costs for residences and small businesses. Several state governments have introduced bills to halt
construction of data centers to allow adequate time for appropriate environmental study and assessment. If
enacted, the moratoriums will allow state agencies and lawmakers the time needed to properly investigate
the impacts of these facilities and develop necessary and common-sense regulations before permitting data
center construction to resume. This would be the responsible path for Arizona to take. And it can start right
here with Maricopa County decision makers.
Simply put, data centers are not appropriate for this wild desert rural site due to lack of water resources and
the impact on the electrical grid, plus noise, light, and electromagnetic pollution which will negatively impact
wildlife and the physical and mental health of nearby residents (most who choose to live out here away from
industry, specifically for mental and physical health reasons), no matter how they frame their mitigation
efforts, there is no circumventing these impacts.
The developers admit that the topography of the Site is subject to hillside, ridges, washes, and floodplains.
(Why they don’t find a more accessible place, more primed for building, is something to ponder—abandoned
vacant lots and structures farther east would be the more suitable and sustainable choice). Then they go on to
say that “the intent is to preserve historic flow patterns of the existing washes and ensure minimal, if any,
adverse impacts to adjacent properties” in response to if it will adversely impact the natural environment or
scenic quality of the area. A laughably dismissive response. This isn’t just about drainage and nearby
properties. How could this development not adversely impact the surrounding environment or “adjacent
properties”, considering this site is indeed riddled with hillsides, ridges, washes, and floodplains? Not exactly
3
prime conditions for construction. They would need to alter it significantly to make it feasible for development
and industrial operations.
Building large data centers, or anything industrial, here will adversely impact the natural environment and
scenic quality of the area. Don’t take my word for it. We can refer to experts in the field. Laurel Arndt is one
such expert from the White Tank Mountain Conservancy, and she previously sent a letter in opposition, laying
out in great detail the inconsistencies and generalizations in the proposal. She makes some very compelling
and educated points about how this will adversely impact the natural environment. She discusses the
topography of the area, its water insecurity, the area’s role as a wildlife corridor and the importance of
preserving it. She stresses that this is “the right project in the wrong place.”
Additionally, according to AZ Game and Fish, this site cuts through the Hassayampa Conservation Opportunity
Area (COA) identified in their Wildlife Conservation Strategy as an area providing vital habitat, migratory
pathways and stopover sites for various species, including those of greatest conservation need. Species that
are legally protected under the Migratory Bird Treaty Act and Endangered Species Act. To name just a few
species I have personally seen in the area include the Western Burrowing Owl, listed as a National Bird of
Conservation Concern and currently protected under the Migratory Bird Treaty Act along with the Great
Horned Owl (seen nesting on the site under discussion), and also the Southwestern Willow Flycatcher, which is
protected under the Endangered Species Act. Other protected species recorded in the Hassayampa COA
include the iconic Gila Monster and Sonoran Desert Tortoise, amongst many others.
Proposing this industrial development in the name of economic growth may even be a façade, considering the
limited water supply, long-term feasibility, and the rural characteristics of this area: Again, large undeveloped
swaths of land consisting of hillsides, ridges, washes, and floodplains (as the developers themselves pointed
out), water wells for scattered residents, dirt roads, and limited to zero infrastructure connectivity. The I-11
freeway is apparently decades away from becoming a reality, environmental lawsuits unsurprisingly blocking
that progress. We already talked about the stagnant nature of the future Belmont City. And the vast
employment opportunities they are claiming this data center will provide? That’s a reach considering the lack
of arterial roadways and the fact that data centers by design are largely automated.
This is a rural desert community, surviving on finite resources, limited water availability and a stressed
electrical grid during summer, a fragile and harsh environment that would be pushed to the brink with
industrial development and would likely break. This push to industrialize this area, would accelerate an
environmental tipping point, and would cause suffering to its current residents, both human and non-human.
What is termed “economic growth” in this case is another way of saying environmental degradation.
New and improved scientific and environmental data compiled between the time the original Hassayampa
Ranch DMP was approved in 2007 and today, which has helped identify this area and species in this area as
being of greatest conservation need, and would therefore be negatively impacted by human development of
any kind, should alone be justification for denying approval for this rezone request as well as any other large-
scale development project proposed for this area. The natural environment and sensitive habitat of species
already profoundly impacted and populations reduced by anthropogenic causes, should be protected. The
importance of which should supersede any declaration of "economic growth”. These natural lands and
threatened wildlife need to survive more than we need data centers or any industrial complex. If federal or
state government agencies are not going to execute their responsibility to the environment, someone else
with power and influence needs to.
Maricopa County’s Planning and Zoning decision-makers and Board of Supervisors should use their authority
to do the right thing for the lives in greatest need, the voiceless and the disenfranchised who will be
impacted the most by this. For some, it could be permanent. By saying “yes” to industry (or any major
development in this area), you may be wiping an entire species off the face of this earth or pushing them to
4
the brink... or you may just be killing one of us, a Hassayampa Ranch community resident clinging to the
peace and refuge that only this rural lifestyle can provide. If that doesn’t give you pause, you’ve been
tragically desensitized by the power and greed of Corporate America, money and politics.
The proposed project would impede on AZ Game and Fish Department’s 10-year action plan to conserve and
protect our state’s most vulnerable wildlife and their habitats, threatening the Hassayampa COA in particular.
It would drive biological and life-cycle alterations, habitat loss and fragmentation for various wild species. It
would precipitate natural resource depletion and create noise, light, electromagnetic, and air pollution that
will threaten the peace, health, and overall well-being of nearby residents (not just the “nine” of us within 300
feet of the site—the developer’s emphasis on the so few of us to be impacted by their project is a sad joke)
and our domestic animals. Lastly, it would provide an uncertain future for my local business, likely forcing my
hatchery to close its doors and lock its gates.
Approving this rezoning request would be irresponsible and frankly immoral.
Respectfully (and passionately),
Cherisse C. Campbell
4816 N. 335th ave.
Tonopah, AZ 85354
1
Andrew Lorentzen (PND)
From:
Rachael Julian <rawiethorn@gmail.com>
Sent:
Tuesday, February 24, 2026 4:24 PM
To:
Andrew Lorentzen (PND)
Subject:
Case # Z250074 HASSAYAMAPA RANCH
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Case # Z250074 HASSAYAMAPA RANCH
Hello,
I am emailing you today to state my objection of the Hassayamapa Ranch Data center. As a
Buckeye resident with a toddler and one on the way, I am extremely concerned about the
environmental impact this will have on our local area and its water resources. We are currently
in a global water bankruptcy and here in the desert we are at an increased risk of water
instability. I urge you to please reconsider placing this data center somewhere else. Please for
our children’s future, our home values, our way of life, please, I ask you to please not build this
data center!
I appreciate your time and attention to this issue.
Thank you,
Rachael Julian
1
Andrew Lorentzen (PND)
From:
Debbie Larson <debbielarson65@hotmail.com>
Sent:
Saturday, February 28, 2026 4:22 PM
To:
Andrew Lorentzen (PND)
Subject:
Objection to Proposed Hassayampa Ranch Data Center Case #Z250074
Importance:
High
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Dear Mr. Lorentzen:
I am a resident of Tonopah, AZ residing at 3505 N 327th Dr. I am writing to formally voice my strong
opposition to the proposed data center project Hassayampa Ranches which would be located 2 miles
from my home.
My objection is based on the following concerns regarding the detrimental impact this facility will have
on our community:
1. Water and Resource Strain: The proposed data center requires immense amounts of water for
cooling, which threatens our local, limited water supply.
2. Increased Utility Costs: Data centers are intensive energy users. The increased load on the grid
is likely to result in higher electricity bills for residents and small businesses in Tonopah and
surrounding areas.
3. Noise and Environmental Pollution: The constant drone from industrial cooling units and the
installation of diesel generators for backup power will create noise pollution and diminish air
quality in our residential area.
4. Upon researching other data center builds throughout the US, it has been proven that wells within
a five mile radius of the data centers have increased cancer causing nitrates and the majority of
people with private wells experience water shortages and discoloration of water over time, even
when the data center uses a closed-loop system. I am greatly concerned that if this does happen
to our private wells in this area, we will have no recourse.
I urge the Maricopa Planning and Development Department to consider the long-term well-being of the
community over the interests of this development and vote NO on this project.
Sincerely,
Deb Larson
2
3505 N 327th Drive
Tonopah, AZ 85354
1
Andrew Lorentzen (PND)
From:
Lizzy <lapartyof4@gmail.com>
Sent:
Monday, March 2, 2026 12:07 PM
To:
Andrew Lorentzen (PND)
Subject:
Objection to case #Z250074 Hassayampa Ranch
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Dear Mr. Lorentzen,
I am writing to formally object to Case #Z-250074, the proposed Hassayampa Ranch 1.5 GW Data
Center.
As a resident of this community, I have serious concerns about the long-term impact this project would
have on our area. The scale of this facility is unprecedented for a rural residential region like ours, and
the potential consequences deserve careful scrutiny before any approval is granted.
First, water usage is a critical issue. Large data centers consume substantial amounts of water daily, and
in an area already facing water scarcity and reliance on wells, this level of demand could strain local
resources. Much of the water used for cooling is not returned to its original source, which raises
legitimate concerns about sustainability and the long-term security of our water supply.
Second, the projected electrical demand of a 1.5 GW facility is enormous. Increased energy
consumption at this magnitude may place additional pressure on local infrastructure and could
contribute to higher utility costs for residents. Our community should not bear indirect financial burdens
resulting from industrial-scale development.
Noise pollution is another significant concern. Data centers operate continuously, and the constant
mechanical sound from cooling systems and equipment can disrupt the quiet character of residential
and rural neighborhoods. This has implications for quality of life and potential health effects over time.
2
Additionally, the construction and operation of a project of this size would permanently alter the land
and surrounding environment. The environmental impact, traffic during construction, and long-term
industrial presence are incompatible with the existing character of our community.
While economic development can be beneficial when thoughtfully planned, this proposal appears
disproportionate to the setting and risks undermining the residential stability and environmental health
of the area. I respectfully request that the Planning & Development Department carefully consider these
concerns and deny approval of this zoning request.
Thank you for your time and consideration.
Sincerely,
Elizabeth Arellano
1
Andrew Lorentzen (PND)
From:
Aaron Orosco <aarnjorosco7987@gmail.com>
Sent:
Saturday, February 28, 2026 5:05 PM
To:
Andrew Lorentzen (PND)
Subject:
Case# Z250074 HASSAYAMPA RANCH
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This email is an objection to the request to rezone rural parcel #504-03-010B to Industrial (IND-2 UPD).
There are efforts underway for a national moratorium on the approval and construction of new data
centers, which more than 230 organizations are currently urging Congress to implement. Why? Because
of their unsustainable consumption of energy and water resources, and the associated rise of utility
costs for residences and small businesses. Several state governments have introduced bills to halt
construction of data centers to allow adequate time for appropriate environmental study and
assessment. If enacted, the moratoriums will allow state agencies and lawmakers the time needed to
properly investigate the impacts of these facilities and develop necessary and common-sense
regulations before permitting data center construction to resume. This would be the responsible path for
Arizona to take. And it can start right here with Maricopa County decision makers.
Data centers are not appropriate for this wild desert rural site due to lack of water resources and the
impact on the electrical grid, plus noise, light, and electromagnetic pollution which will negatively
impact wildlife and the physical and mental health of nearby residents (most who choose to live out here
away from industry, specifically for mental and physical health reasons), no matter how they frame their
mitigation efforts, there is no circumventing these impacts.
How could this development not adversely impact the surrounding environment or “adjacent
properties”, considering this site is indeed riddled with hillsides, ridges, washes, and floodplains? Not
exactly prime conditions for construction. They would need to alter it significantly to make it feasible for
development and industrial operations.
Laurel Arndt is one such expert from the White Tank Mountain Conservancy, and she previously sent a
letter in opposition, laying out in great detail the inconsistencies and generalizations in the proposal. She
makes some very compelling and educated points about how this will adversely impact the natural
environment. She discusses the topography of the area, its water insecurity, the area’s role as a wildlife
corridor and the importance of preserving it. She stresses that this is “the right project in the wrong
place.”
Also according to AZ Game and Fish, this site cuts through the Hassayampa Conservation Opportunity
Area (COA) identified in their Wildlife Conservation Strategy as an area providing vital habitat, migratory
pathways and stopover sites for various species, including those of greatest conservation need. Species
that are legally protected under the Migratory Bird Treaty Act and Endangered Species Act. To name just a
few species I have personally seen in the area include the Western Burrowing Owl, listed as a National
2
Bird of Conservation Concern and currently protected under the Migratory Bird Treaty Act along with the
Great Horned Owl (seen nesting on the site under discussion), and also the Southwestern Willow
Flycatcher, which is protected under the Endangered Species Act. Other protected species recorded in
the Hassayampa COA include the iconic Gila Monster and Sonoran Desert Tortoise, amongst many
others.
This is a rural desert community, surviving on finite resources, limited water availability and a stressed
electrical grid during summer, a fragile and harsh environment that would be pushed to the brink with
industrial development and would likely break. This push to industrialize this area, would accelerate an
environmental tipping point, and would cause suffering to its current residents, both human and non-
human. What is termed “economic growth” in this case is another way of saying environmental
degradation.
Maricopa County’s Planning and Zoning decision-makers and Board of Supervisors should use their
authority to do the right thing for the lives in greatest need, the voiceless and the disenfranchised who
will be impacted the most by this. For some, it could be permanent. By saying “yes” to industry (or any
major development in this area), you may be wiping an entire species off the face of this earth or pushing
them to the brink... or you may just be killing one of us, a Hassayampa Ranch community resident
clinging to the peace and refuge that only this rural lifestyle can provide. If that doesn’t give you pause,
you’ve been tragically desensitized by the power and greed of Corporate America, money and politics.
The proposed project would impede on AZ Game and Fish Department’s 10-year action plan to conserve
and protect our state’s most vulnerable wildlife and their habitats, threatening the Hassayampa COA in
particular.
I have lived in this area for 46 yrs and I've watched the land slowly being lost to development. I have seen
hundreds of acres of good farm land be sold to developers. It just seems a waste to me especially for the
environment itself. We only have so much available resources here in the desert. Water is already a big
topic and issue for local farmers and ranchers. The small businesses out here that depend on the peace
and quiet to thrive are being tormented and pushed to the side by billionaires. Who have no real stake in
this land other than till fill their pockets with money. And at what cost? The cost of destroying a small
hatchery that I've come to know personally and helped grow in my time as an employee there. At C3's
Gallinaceous Hatchery whose livelihood would assuredly be disrupted by a huge data center. The owner
Cherisse Campbell has poured her heart and soul into that land for the last 10 years bringing happiness
to people with the love and care she puts into her hatchery. Its a shame that a billionaire can just come in
and destroy that hard work, she's put into the land she loves and is fighting for. Also good friends and
neighbors near by the Fletchers who have put in their efforts and life savings into a peaceful retirement
and forever home. Along with other neighbors as well that make up the small community around the C3's
Gallinaceous Hatchery. But most importantly is the desert wildlife that would be decimated by heavy
equipment and heavily increased traffic to the area. Hear the pleas of the ones who have poured their
hearts and souls into the land they love. Please do not let this data center that is so unnecessary for this
place be built to destroy years of hard work. Find another place for it.
Sincerely,
Aaron Orosco
308 5th Ave W.
3
Buckeye, AZ. 85326.
1
Andrew Lorentzen (PND)
From:
Matthew Quintero <matthew.quintero97@gmail.com>
Sent:
Saturday, February 28, 2026 9:36 AM
To:
Andrew Lorentzen (PND)
Subject:
Formal Opposition to Case Z250074 – Hassayampa Ranch Data Center
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Andrew,
I am a resident of the Tonopah area and am writing to formally oppose Case Z250074 related to the
proposed data center development at Hassayampa Ranch.
This project poses serious and unresolved risks to existing rural residents, particularly regarding
groundwater, infrastructure capacity, and compatibility with surrounding land uses. Homes in this area
rely on private wells drawing from shared aquifers. The scale and continuous water demand associated
with hyperscale data centers presents a real risk of aquifer drawdown and well impairment, especially in
an area not protected by enforceable groundwater management limits.
Additionally, the existing electrical and transmission infrastructure serving this area was not designed to
support an industrial load equivalent to a small city. Without binding guarantees and infrastructure
improvements completed prior to approval, this project risks power instability, visual blight from new
substations and lines, and long-term impacts on residents who receive no direct benefit from the
development.
Finally, the 24/7 operational nature of data centers introduces unavoidable light pollution, noise from
cooling systems and generators, and air quality impacts that are fundamentally incompatible with the
rural character of Tonopah.
This project should not move forward. It does not align with the local residents and our wants and needs!
Please include this email as part of the official public record for Case Z250074.
Sincerely,
Matthew Quintero
1
Andrew Lorentzen (PND)
From:
Dawn Reisenbigler <dawnreis@mac.com>
Sent:
Saturday, February 28, 2026 5:18 PM
To:
Andrew Lorentzen (PND)
Subject:
Objection to Proposed Hassayampa Ranch Data Center Case #Z250074
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Dear Mr. Lorentzen:
I currently reside at 3505 N 327th Dr Tonopah, AZ. I am writing to voice my opposition to the proposed
data center project Hassayampa Ranches which would be located 2 miles from my home.
My objection is based on the following concerns regarding the detrimental impact this facility will have
on our community:
1. Water and Resource Strain: The proposed data center requires immense amounts of water for
cooling, which threatens our local, limited water supply.
2. Increased Utility Costs: Data centers are intensive energy users. The increased load on the grid is
likely to result in higher electricity bills for residents and small businesses in Tonopah and
surrounding areas.
3. Noise and Environmental Pollution: The constant drone from industrial cooling units and the
installation of diesel generators for backup power will create noise pollution and diminish air
quality in our residential area.
4. Upon researching other data center builds throughout the US, it has been proven that wells within
a five mile radius of the data centers have increased cancer causing nitrates and the majority of
people with private wells experience water shortages and discoloration of water over time, even
when the data center uses a closed-loop system. I am greatly concerned that if this does happen
to our private wells in this area, we will have no recourse.
I urge the Maricopa Planning and Development Department to consider the long-term well-being of the
community over the interests of this development and vote NO on this project.
Sincerely,
Dawn Reisenbigler
1
Andrew Lorentzen (PND)
From:
SAMANTHA Rodriguez Quintero <s.quintero.r24@gmail.com>
Sent:
Saturday, February 28, 2026 10:25 AM
To:
Andrew Lorentzen (PND)
Subject:
Incompatibility of Proposed Data Center with Rural Tonopah Area
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Dear Decision Makers,
I am writing to express my opposition to the data center proposed at Hassayampa Ranch under Case
Z250074.
This development is fundamentally incompatible with the rural nature of the Tonopah area. Data centers
operate continuously, generating constant light pollution, mechanical noise, and emissions from backup
generators. These impacts do not dissipate over time — they permanently alter the surrounding
environment.
Residents chose this area specifically for its low density, dark skies, quiet conditions, and minimal
industrial presence. Introducing a large-scale, nonstop industrial operation undermines those
expectations and sets a precedent for further incompatible development.
Land use decisions should protect existing communities, not sacrifice them for projects that can be
located in areas already zoned and serviced for heavy industrial demand.
For these reasons, I strongly oppose this project and ask that it be denied.
Sincerely,
Samantha Rodriguez Quintero
1
Andrew Lorentzen (PND)
From:
SAMANTHA Rodriguez Quintero <s.quintero.r24@gmail.com>
Sent:
Saturday, February 28, 2026 10:24 AM
To:
Andrew Lorentzen (PND)
Subject:
Opposition to Hassayampa Ranch Data Center Due to Groundwater Impacts
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To Whom It May Concern,
I am submitting this email in opposition to the proposed data center development associated with Case
Z250074 at Hassayampa Ranch.
My primary concern is groundwater. Residents in this area depend exclusively on private wells, and there
is no enforceable mechanism ensuring that industrial-scale water use from a data center will not impair
existing wells over time. Promises of “efficient cooling” or future mitigation do not replace binding limits
or long-term hydrogeologic guarantees.
Once groundwater levels decline, the damage is irreversible for residents. Wells fail, drilling costs
increase, and homeowners bear the financial burden while industrial users continue operating. This risk
alone makes the proposed use inappropriate for this location.
Until the applicant can provide an independent hydrogeologic study demonstrating non-impairment of
existing wells under full buildout conditions, approval of this project would be premature and
irresponsible.
Please record my opposition in the official file for this case.
Respectfully,
Samantha Rodriguez Quintero
Tonopah Arizona
1
Andrew Lorentzen (PND)
From:
lee smith <antiquely4@hotmail.com>
Sent:
Saturday, February 28, 2026 9:51 AM
To:
Andrew Lorentzen (PND)
Subject:
Hassayampa Ranch 1.5 GW Data Center
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Dear Andrew Lorentzen(planning dept):
I am writing to formerly object to the proposed data center development case#Z250074
HASSAYAMPA RANCH.
I am a resident living at Hassayampa Ranch neighborhood on N. 336th Ave,and believe this project
will have significant negative impacts on our community.
My objections are based on the following concerns:
NOISE POLLUTION/ the 24/7 operation of cooling fans and backup generators will severely impact
the quality of life we have here in our quiet family oriented neighborhood.
WATER USAGE/these facilities consume substantial (huge) amounts of water which will strain local
resources , especially OUR neighborhood which we all rely on our wells, (which cost us several
thousand dollars to put in) and water is a huge problem here in AZ. Data centers are water vampires
using enormous amounts of water ,even if you plan on recycling 60% of water used.
ELECTRICAL USAGE AND ENERGY/the high usage of electricity data centers consume could result
in higher utility costs for our local residents, and that could be devastating in these hard enough
times.
AIR POLLUTION/Data centers contribute to air pollution, which could worsen existing health
conditions among our residents.
The cumulative effects of the noise(and there is definitely a constant noise) interfere with outside
activities,sleep, our babies peace, water and air pollution, as well as increased electricity use will
significantly affect both our physical and overall health here in this community. The construction and
operation of this proposed data center will lead to changes in our environment and land here.
This is not even including the constant trucks on our roads ,kicking up dust into the air, noise during
construction, (not including once it’s up and running ! The impact on our home and land values will be
lowered considerably.
We bought our land and homes here because we have peace and quiet and to improve our quality of
life.
There is so much available land off the I-10 that could be used that will NOT IMPACT peoples lives
this way. I am asking you to reconsider NOT allowing this data center to be placed here. It will ruin
several people’s lives and we deserve to be considered.
Thank you, Lee Smith-Stlouis
(480)577-7100.
1
Andrew Lorentzen (PND)
From:
stfred.43 <stfred.43@gmail.com>
Sent:
Saturday, February 28, 2026 10:20 AM
To:
Andrew Lorentzen (PND)
Subject:
Tonopah data center case# z250074. HASSAYAMPA RANCH
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Andrew is am writing to object to the data center in tonopah..not buckeye...the average data center use
300.000 gallons of water a day...everyone out here is on wells..that is equivalent to daily use of 100,000
homes ..
Noise....the generators and water coolers constant hum will be unbearable for outdoor activities and
sleep
We moved out here for peace and quiet...
Sent from my Galaxy
This is not buckeye I know buckeye wants this to be built...this is tonopah,....you purposely scheduled
these hearings during the week in phoenix/ Jefferson st. So nobody will show.
Thanks fred stlouis 4424 n 336th ave tonopah not buckeye arizona
March 2, 2026
Maricopa County Planning and Zoning Commission
301 W. Jefferson St.
Phoenix, AZ 85003
Re: Letter of Support for Hassayampa Ranch Zone Change with Overlay (Z250047)
Dear Maricopa County Planning and Zoning Commissioners:
On behalf of the Arizona Technology Council, the state’s premier trade association representing more than 750
science and technology companies, I write to express our strong support for the proposed Hassayampa Ranch
Zone Change with Overlay (Z250047).
This request seeks approval of a zone change with an overlay for approximately 2,077 acres historically known as
Hassayampa Ranch. In 2008, the property was entitled for a master-planned community featuring more than
5,700 homes but was not developed. The current proposal instead would allow Arizona Land Consulting to pursue
light industrial uses, including a data center and power generation, while accommodating other compatible
advanced industrial users.
The project represents a strategic and appropriate evolution of the site. Located within an established industrial
corridor and supported by existing transportation infrastructure and utility networks, the proposed rezoning aligns
with surrounding land uses and long-term regional planning objectives. Importantly, it will generate both short-
and long-term employment opportunities while strengthening economic vitality in the West Valley, an area widely
recognized for its workforce talent, strong educational institutions, and collaborative ecosystem that supports
technology and advanced manufacturing growth.
Arizona’s economy increasingly depends on digital infrastructure. The rapid expansion of cloud computing,
artificial intelligence, advanced manufacturing and secure digital systems has significantly increased demand for
resilient data center capacity and reliable power generation. Arizona has emerged as one of the nation’s leading
data center markets, driven by its favorable business climate, limited exposure to natural disasters, robust energy
portfolio and proximity to major technology corridors in Texas and California.
Data centers are foundational infrastructure for the modern economy. They enable innovation across sectors,
support defense and national security operations, and attract high-value investment. Each direct data center job
supports approximately six additional jobs across the broader economy. Construction of these facilities generates
hundreds of skilled trade positions over multiyear build cycles, contributing meaningfully to local employment and
tax revenues. Over the next decade, Arizona’s data center growth is projected to generate more than 251,000
temporary construction jobs, over 37,000 permanent jobs and approximately $2.63 billion in new tax revenue
statewide.
The proposed Hassayampa Ranch development will help ensure Arizona remains competitive in attracting next-
generation industries while advancing responsible economic development in Maricopa County.
For these reasons, we respectfully urge your approval of this important project and stand ready to support its
continued success.
Respectfully,
ARIZONA TECHNOLOGY COUNCIL & SCITECH INSTITUTE
Steven G. Zylstra
President & CEO