TAC Review Comments

City of El Mirage — Regular Meeting (2025-09-09)

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PLANNING AND ZONING 
Community Development Department 
10000 N. El Mirage Road, El Mirage, Arizona 85335 
623-876-2996; Fax 623-876-4605; TDD 623-933-3258 
www.elmirageaz.gov 
 
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MEMORANDUM 
Technical Advisory Committee  
Review Comments  
TO: 
 
Kristin Thoma-Mahan, KTM Design Studio 
FROM: 
Jose A. Macias, Senior Planner 
 
 
Development Services Department, Planning & Zoning  
RE: 
SP250002 DT Industrial Park  
DATE:  
August 21, 2025 
Mrs. Thoma-Mahan,   
Please see the review comments from the El Mirage Technical Advisory Committee (TAC) for the site 
plan approval zoning application mentioned above.      
 
BUILDING & SAFETY – Brigham Bennett, Building Official  
1. No comments. 
ECONOMIC DEVELOPMENT – Tom Doyle, Economic Development Manager 
2. This is a great project that meets the needs of several small businesses looking for rental space.  
ENGINEERING – Bryce Christo, Asst. City Engineer 
3. See the attached memorandum. 
FIRE DEPARTMENT – Jason Napier, Fire Marshall   
4. No comments.  
PLANNING & ZONING – Jose A. Macias, Senior Planner 
5. See the attached memorandum.  
POLICE DEPARTMENT – Chris Culp, Police Sergeant  
6. No comments. 
PUBLIC WORKS – Scott Ketchmark, Utilities Superintendent  
7. No comments. 
 
If you have any questions regarding these comments or would like to set up a follow-up, please feel free 
to contact my office.

Engineering 
Development Services Department 
10000 N El Mirage Road, El Mirage 85335 
623-972-8116; Fax 623-876-4605; TDD 623-933-3258 
www.elmirageaz.gov 
 
 
MEMORANDUM  
 
TO: 
 
Jose Macias, Planner/GIS 
FROM: 
Bryce Christo, P.E., Assistant City Engineer 
SUBJECT: 
DT Industrial Site Plan Review  
DATE: 
08-20-25 
 
Below are the Engineering Department’s comments for the above referenced submittal provided 
in August 2025. These items will have to be addressed prior to the Planning and Zoning 
Meeting. 
 
Site Plan/Civil Plans  
1. None. 
 
The below items will have to be addressed during the Construction Plan Submittal. 
 
Narrative  
2. A Final Phasing Plan per Chapter 1, Section F of the City’s Design & Development 
Standards Manual (DDSM) will be required with the Site Plan application. 
 
Site Plan/Civil Plans  
3. Provide the street address of the project. 
4. Label the right of way of Dysart Road. 
5. The plans will have to show the following: 
a. Exterior signs 
b. Exterior lighting 
6. A 1-foot Vehicular Non-Access Easement (VNAE) is required along the south property 
line and along Dysart Road except at the proposed driveways. 
7. The proposed south driveway appears to be approximately 235 feet north of the future 
rail crossing right of way. The spacing meets City Code requirements but the applicant 
will have to obtain a letter from BNSF stating this spacing is acceptable to them. This 
letter must be submitted to the City prior to civil plan approval or the release of any 
permits. 
8. The proposed driveway shall be per MAG or City details. A stop sign is recommended at 
the driveway. A “One Way” sign shall be installed in the existing median across from the 
driveway.  
9. The driveway shall be able to accommodate a WB-67 vehicle without encroaching into 
the adjacent lane. 
10. Any fire lane/emergency access road shall be 26 feet wide and designed to handle 75,000 
lbs. A Geotechnical Report will be required for this project, and it should provide a 
recommended design section for the access road(s) and all other onsite paving.

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11. Show a breakdown of all of the required and provided parking spaces for each building 
including the number of ADA spaces (standard and van accessible).  If the amount of 
spaces being provided is less than required, a Parking Waiver must be provided. The 
Waiver shall include the number of spaces required per City Code, the number of spaces 
actually required by the site and how that number was determined and explain how 
additional spaces can be accommodated if required in the future. 
a. If the office is part of the warehouse, the number of spaces required reduces to 1 
per 350 sf. 
b. A note on the Site Plans states that “parking stalls can be provided in rear yard as 
required per tenant”. There does not appear to be enough room to (a) drive the 
vehicles to/from the rear via the proposed gate and (b) to provide both parking 
spaces and a drive aisle in the rear of the buildings while meeting City Code. 
12. When parking spaces are adjacent to a sidewalk, the sidewalk shall be a minimum of 6 
feet wide or parking blocks shall be installed. 
13. The standard parking space dimensions for 90-degree spaces shall be 9’x18’ per City 
Detail EM-157. The drive aisles within the parking lots shall be a minimum of 25 feet 
wide for two-way traffic.  The drive aisles for the parking lot between Buildings M and N 
appear to be only 24 feet wide. Provide dimensions of the improvements included the 
parking spaces, drive aisles, sidewalks, etc.  
14. Dead end parking lots require a minimum 5 foot bump out to allow vehicles to pull 
out/turnaround. 
15. Parking spaces shall be striped with a minimum of 4-inch painted lines. 
16. 6-inch MAG type curbing is required around all driveways and parking lots. Curb that 
carries drainage shall include a gutter. The curbing shall be no closer than 3 feet to any 
property line. 
17. Verify that there are no conflicts with the parking spaces and the proposed garage door 
locations.  
18. Off-street loading spaces are required per City Code Section 154.105. Shows these spaces 
on the plans. 
19. Plans shall include applicable City Notes. Call out MAG, City, etc. details to be used. 
Use the City’s Design & Development Standards Manual (DDSM) as a guide for the final 
design. 
 
Preliminary Grading & Drainage Plan (A separate Grading and Drainage Plan was not 
submitted for review but the below are based on typical comments and the exhibit provided in the 
Preliminary Drainage Report) 
20. Provide topographic contours and drainage arrows. 
21. Verify the slope does not exceed 2% in any direction within ADA parking spaces. 
22. Side slopes adjacent to the public right of way, areas where pedestrian access is permitted 
and within Public Utility Easements (PUE) shall be 6:1 or flatter. There shall be at least 
two feet of level ground between any wall or vertical obstruction and the top of any side 
slope grading.  
23. The proposed basins and/or underground retention pipe shall be located a minimum of 4 
feet away from any structures and shall not be located within any building setbacks, 
easements, or fire lanes.  
24. Label basin volumes required, volumes provided, HWL, bottom elevations and the basin 
overflow elevations for each basin. 
25. The finished floors of Buildings L and N appear to be less than 1 foot above the HWL of 
the adjacent basin. These finished floors shall be raised or the basin lowered to obtain the 
one foot of freeboard.

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Preliminary Utility Plans (A separate Utility Plan was not submitted for review but the below are 
based on typical comments and the exhibit provided in the Preliminary Water and Sewer 
Reports) 
26. The Utility Plans shall show all utilities and utility easements including electric, gas, 
phone and cable, if applicable. 
27. Onsite sanitary sewer main/services and water mains/services will be private and will be 
reviewed by the City. The water main between the backflow preventer and main will be 
reviewed by EPCOR. The sanitary sewer connection will be reviewed by EPCOR. 
28. Water meters/vaults shall be located within the right of way and backflow preventers 
shall be located on private property but not within the PUE.  
29. Domestic and landscape services lines shall be a minimum of 1 inch in diameter. Fire 
service lines shall be a minimum of 6 inches in diameter unless a smaller size is approved 
by the Fire Department in writing.  
30. The landscaping service requires its own meter and backflow preventer. 
31. The maximum length of a dead end water main is 400 feet.   
32. Fire hydrants shall adhere to City Details EM-360, 361 and 362. If bollards are required, 
they shall adhere to City Detail EM-364. The backflow preventers shall adhere to City 
Details EM-351, 352 or 353.   
33. Water valves are required along the fire line, approximately every 500 feet, and at 
locations so that the maximum number of hydrants to be out of service is two. 
34. Hydrant spacing shall be a maximum of 300 feet around the buildings. Final locations 
will be reviewed and approved by the Fire Department.  
35. All utilities shall maintain a minimum of 3 feet of clearance from all fire hydrants and 
fire suppression devices per City Detail EM-361. 
36. Any hydrants within the project site will be private and painted “Safety Red” per City 
Detail EM-360. All hydrants require markers per MAG Detail 122. 
37. Water and sewer lines or services are not recommended to run through retention basins as 
shown on the plans.  If this is desired, the utilities must have a minimum of 4 feet of 
cover from the bottom of the basin to the top of the pipe. 
38. The sewer services shall be a minimum of 6 inches in diameter. 
39. Each new building will require a backwater valve per City Detail EM-442. 
40. See Section 6-3 of the City’s Design and Development Standards Manual (DDSM) to 
determine if a pretreatment device is required. 
41. Show utility horizontal and vertical clearance information per MAG Detail 404 and City 
Detail EM-402. 
42. Each proposed driveway shall have at least one streetlight. 
43. Any light or combination of lights which cause light on a public street, other than lights 
specifically intended for that purpose, shall not exceed one foot candle as measured from 
the center line of the street. Provide a Photometric Plans that shows the foot candles 
along the centerline of Dysart Road to verify that the proposed lighting will not exceed 
the maximum limit. 
 
Preliminary Landscape Plans 
44. A separate landscaping service, meter and backflow preventer is required. 
45. All plantings at maturity shall maintain a minimum of 3 feet of clearance from all fire 
hydrants and fire suppression devices per City Detail EM-361. 
46. Trees shall not be placed within 5 feet of any City curb or sidewalk or within 6 feet of 
any public utility.

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47. DG, or another approved soil stabilization measure, is required on all non-paved, 
improved areas both on site and within the right of way adjacent to the project site. 
48. Add a note to the plans that the maintenance for all landscaping and irrigation shown on 
the plans will be the responsibility of the property owner. 
49. Irrigation plans will be required. 
 
Exterior Elevations 
50. No comments. 
 
Preliminary Drainage Report 
51. Section 4.2 – This section states that “offsite flows are assumed to only enter the property 
at the northeast corner of the site.” There are two scuppers along Dysart Road that accept 
offsite flows. 
52. Table 4.1 – The volume required for the “Onsite” is incorrect. Use 2.4 inches as the 
rainfall depth. 
53. Section 4.4 – The difference between the lowest finished floor and the site outfall is 1.31 
feet. 
54. Use the City Runoff Coefficients per City Code Section 155.054(B)(6)(a). Concrete = 
0.95, roofs/asphalt = 0.85, grass = 0.15 and desert/rock lawn = 0.70.  
55. Show the high water level, bottom elevation and overflow elevations of each basin. 
Provide stage-storage calculations.  
56. Provide dry well calculations for the basins and underground retention pipes. It is 
recommended to use 0.1 cfs as the percolation rate for planning purposes. 
57. Provide a Tributary Area Map. 
58. Update any offsite calculations that were originally prepared with the Desert Truss West 
site, as applicable. 
59. Provide calculations of the storm drain pipes, catch basins, etc. 
 
Preliminary Water Report  
60. Section 2 – The Zoning for this parcel is PAD/EI. 
61. Provide the Pipe Report to show the system meets the requirements of the City’s Water 
Design Criteria.  
 
Preliminary Sewer Report 
62. Show calculations that the proposed sewer can accommodate the flows from the entire 
site including Desert Truss West and the full build out of DT Industrial. Show that it 
meets the requirements set forth in the City’s Wastewater Design Criteria. 
 
Traffic Impact Statement (TIS) 
63. Turn Lane Analysis and Queue Storage – The City’s Auxiliary Lane Criteria has been 
updated for 2025. 
64. Right Turn Lane Warrant Analysis  
a. The reduction of the southern deceleration lane storage to 55 feet requires a 
Design Exception. Previous approvals for reduced storage do not carry over to 
future phases/projects. 
b. It is noted that 55 feet of storage for the southern deceleration lane is sufficient for 
two typical passenger vehicles. Being that the ultimate site includes both a truss 
manufacturing company and various industrial uses, are larger vehicles 
anticipated to be visiting this site that could make this reduced storage 
inadequate?

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c. The spacing of 215 feet between the proposed driveways is less than the City 
requirement of 250 feet, therefore a Design Exception will be required.  
d. If the above Design Exception is approved, the taper of the deceleration lane can 
be reduced to 90 feet in an attempt to maximize the storage length. The City does 
not wish for the right turn lane to be continuous.  
65. Queue Storage – It shall be noted that the northbound left turn lane constructed by the 
City as part of the Dysart Road project was installed with 153 feet of storage.  
 
ALTA Survey 
66. ALTA Surveys are only good for 6 months but the provided one is from 2021. This 
ALTA is acceptable for the TAC Committee but an updated ALTA will be required as 
part of the Final Plat process. The updated ALTA will need to revise Schedule B per the 
latest title report. 
67. The following items were noticed on the submitted ALTA: 
a. The Schedule B number references on Sheet 3 appear to be off by 1 (i.e., #11 
should actually be #12). 
b. The right of way is shown as both 61.5 feet and 60.5 feet. The correct right of way 
width is 60.5 feet. 
 
Title Report 
68. No comments. 
 
Phase I Environmental Site Assessment 
69. Phase I ESAs are only good for 6 months but the provided one is from 2022. An updated 
Phase I ESA will be required. 
70. The following items were noticed on the submitted Phase I ESA: 
a. Section 3.2 & 7.2 – The project site lies within a Water and Wastewater Service 
Area that is in the process of being transferred to EPCOR. 
b. Section 3.3 – The “stormwater manhole” found on the southern boundary of the 
site is actually an irrigation manhole that helps direct the water from the existing 
concrete ditch through the TI Cold site to the south. 
c. Section 3.4.5 – The sanitary sewer manhole found at the southeast corner of the 
property was installed by EPCOR and is located within the right of way, not on 
the subject property. 
 
Miscellaneous 
71. A Final Plat will be required prior to Certificate of Occupancy. The Plat shall show the 
following: 
a. Any lot splits 
b. Any right of way and/or easement dedications including a 1-foot Vehicular Non-
Access Easement (VNAE) and any Pedestrian Access Easements (PAEs) where 
the driveways may encroach into the private property. 
c. Cross access, utility, drainage, etc. easements required. 
d. Abandonment of any easements on the lot that are no longer required. 
72. The applicant will have to obtain a letter from BNSF stating the spacing between the 
southern driveway and the future rail crossing is acceptable to them. This letter must be 
submitted to the City prior to civil plan approval or the release of any permits.  
73. A Geotechnical Report will be required to provide on-site pavement sections. Verify the 
proposed pavement sections can handle 75,000 lbs. for the fire access lane.

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74. A Haul Permit will be required if 500 cubic yards or more of material will be brought 
into or out of the site. This will require a separate application, an exhibit showing the haul 
route and insurance from the company performing the haul. The fee is $300. 
75. An Approval to Construct (ATC) or waiver will be required from MCESD for the water 
and sewer line extensions. A copy shall be provided to the City prior to the release of any 
Engineering permit. 
76. A Dust Control Permit from the County will be required prior to the release of any 
Engineering permit. 
77. A Stormwater Pollution Prevention Plan (SWPPP) will be required per the City’s SWPPP 
Guidelines document. A Notice of Intent (NOI) from ADEQ will be required prior to 
release of any Engineering permit. 
78. Any cutting of the pavement in the reconstructed Dysart Road will require Pavement Cut 
Fees per the most current Fee Schedule. 
79. The City will not release any permits until EPCOR provides the City with their approval 
of the water and sewer plans and reports. The applicant is responsible for submitting 
plans to EPCOR for review and approval. 
 
The above comments are meant to be general in nature and are not considered to be all inclusive. 
Additional comments will arise during the formal permit submittal.

PLANNING AND ZONING 
Development Services Department 
10000 N. El Mirage Road, El Mirage, Arizona 85335 
623-876-2996; Fax 623-876-4605; TDD 623-933-3258 
www.elmirageaz.gov 
 
 
Planning & Zoning Review Comments Memorandum 
TO: 
 
Kristin Thoma-Mahan, KTM Design Studio 
FROM: 
Jose A. Macias, Senior Planner 
 
 
Development Services Department, Planning & Zoning  
RE: 
SP250002 DT Industrial Park  
DATE: 
August 19, 2025 
Mrs. Thoma-Mahan,   
Please review the comments from the Planning and Zoning Division regarding the Preliminary 
Application submission for the proposed project outlined above. 
APPLICATION FORM 
1. Property Owner: Desert Truss Holding Company Inc. 
2. Assigned Address: 10080 N Dysart Rd, El Mirage, AZ 85335, Building Letters, Suite 
Numbers.  
ZONING 
3. General Plan: Commerce Industrial Park  
4. Zoning: PAD (Planned Area Development, PAD00-08-01, Commercial, Industrial, 
Manufacturing)  
5. Overlay District: ARS 28-8481, Luke Air Force Accidental Potential Zone II.   
6. Current Land Use: Undeveloped   
7. Flood Area: N/A 
8. Proposed Land Use: Industrial/Retail Park 
9. Zoning Application Requirement: Site Plan Approval  
 
SITE PLAN 
12. The parking requirements for the office and warehousing space are not being met. 
Staff will need to evaluate the proposed use for each suite to confirm the parking 
requirements. Additional parking may be required.  
13. Add the following notes to the site plan.  
a. All potential tenants shall be required to verify the intended use of the suites 
to confirm compatibility with city zoning, ARS28-8481, and APZ II before 
applying for tenant improvement permits, certificates of occupancy, and city 
business licenses.  
ELEVATIONS 
12. No comment.

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LANDSCAPE PLANS 
14. The off-site landscaping along Dysart Road is being completed with the Desert Truss 
West project. 
15. A final landscape plan must be submitted along with the construction documents for 
review. Any changes to the landscape plan—whether before, during, or after the 
approval of the preliminary or final landscape plan—must be authorized by the 
Zoning Administrator or their designee prior to installation. 
SIGNAGE 
16. Sign permits are required for all types of signs, including monuments, freestanding 
signs, wall signs, and others. Building address and number signs are excluded from 
this requirement. Separate fees will apply for obtaining these permits. 
FINAL PLAT 
17. A Final Plat shall be submitted for staff review and City Council approval to accept 
any lot splits, land deeded to the City, utilities, and access easements. $1,000.00 plus 
$10.00 per lot/tract. 
 
ARS 28-8481 MILITARY LAND USE COMPATIBILITY 
18. The site is situated within the Noise Contour Zone of Luke Air Force Base (LAFB), 
in Accidental Potential Zone II, and within the Military Airport Territory Area. As a 
result, it is subject to review by LAFB to ensure land-use compatibility. Please see the 
attached email dated January 20, 2025.  
 
MISCELLANEOUS  
12. The property management company shall obtain and maintain a city business license.  
 
If you have any questions regarding these comments, please feel free to contact my office at 
(623)876-2996 or jmacias@elmirageaz.gov.