Presentation

City of Glendale — Regular Meeting (2024-06-27)

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M R TANNER MINING/THREE 
ROCKS, LLC
GPA24-01 & ZON24-01
Planning Commission Public Hearing – June 27, 2024
Christina LaVelle
Senior Planner

Request
2
1) Minor General Plan Amendment from POS 
and LDR 2.5 to HI (48 acres)
2) Rezone from A-1, SR-30, and R1-6 to M-2
Applicant/ Owner: Paul Gilbert, Mary Grace 
McNear, Kurt Waldier / City of Glendale

Vicinity Map
3
Located east 
of the 
southeast 
corner of 
Glendale 
Avenue and El 
Mirage Road
Site
City Hall

General Plan/Zoning Maps
4
General Plan Proposal:
HI
Zoning Proposal:
M-2 with Special Use

Aerial Photograph
5

Conceptual Site Plan
6

Public Involvement
7
• Neighborhood Meeting: April 25, 2024.
• Notices mailed: June 03, 2024.
• Published in the Arizona Republic: June 05, 
2024. 
• Property posted on-site: June 10, 2024.

Findings & Analysis
8
• Proposal is consistent with the General 
Plan.
• Furthers General Welfare by supporting 
development.
• Zone change is compatible with adjacent 
properties.
• Mitigation measures have been included.

Findings & Analysis
9
• Special Use is not detrimental due to:
• Increase of traffic.
• Excessive noise or light.
• Scale or height.
• Hours of operation.
• Parcel size.
• Disruption of character of area.

Recommendation
10
Move to recommend approval of GPA24-01, as 
written.
Move to recommend approval of ZON24-01, 
subject to the following stipulations:
1. Development shall be in substantial 
conformance with the applicant's project 
narrative date stamped May 17, 2024.

Recommendation
11
2. Development shall be in substantial 
conformance with the applicant's site plan, 
date stamped May 17, 2024.
3. The developer shall construct site 
improvements in conformance with the Real 
Property Purchase and Sale 
Agreement recorded with the Maricopa 
County Recorder on December 12, 2023.

Recommendation
12
4. A ten-foot-tall (from grade) berm along the 
northern boundary of parcel 501-55-003B 
and the eastern portion of the northern 
boundary of parcel 501-99-001J shall be 
installed prior to the start of business 
operations.

Recommendation
13
5. All proposed site improvements shall 
require Luke Air Force Base Approval and City 
of Glendale design and construction plan 
review prior to installation.
6. All proposed road improvements to El 
Mirage Road require coordination with the 
Maricopa County Department of 
Transportation for review and approval.

Recommendation
14
7. Any future proposed access from Glendale 
Avenue will require City of Glendale 
Transportation Department review and 
approval. As part of this approval, the road 
will require design and construction plan 
approval.
8. All operations, monitoring, recordkeeping, 
and reporting will be conducted in 
accordance with an approved Maricopa 
County air permit for dust control.

Recommendation
15
9. All mine activities will be regulated by the United 
States Mine Safety and Health Administration 
(MSHA) under the approved Mine Site 
Identification used by Three Rocks LLC. No 
operations will take place when significant flows 
occur in the Aqua Fria River and the vertical and 
horizontal limits of excavation will be in 
conformance with the approved Aggregate Mined 
Land Reclamation Plan administered by the 
Arizona State Mine Inspector (ASMI) and the 
Floodplain Use Permit (or equivalent entitlement) 
issued by the City of Glendale.

Recommendation
16
10. Once it is determined that the appropriate 
unconsolidated sand and gravel resources have 
been excavated from the property, the site will be 
reclaimed back to its purpose as a primary 
floodway of the Agua Fria River. The Reclamation 
Plan will be approved by the ASMI and will include 
a suitable financial assurance mechanism to 
guarantee that planned reclamation efforts are 
conducted in the event of default.

M R TANNER MINING/THREE 
ROCKS, LLC
GPA24-01 & ZON24-01
Planning Commission Public Hearing – June 27, 2024
Christina LaVelle
Senior Planner