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April 8, 2026
Z250030
Page 1 of 3
Report to the Board of Supervisors
Prepared by the Maricopa County Planning and Development Department
Board Hearing Date:
April 8, 2026
Case #/Title:
Z250030 – 330 S 75th Ave – Clean Harbors Industrial
Supervisor District:
5
Applicant/Owner:
Zach Hill, Kimley-Horn / Clean Harbors Environmental Services, Inc.
Request:
Zone Change from IND-3 to IND-3 IUPD
Site Location:
Generally located approx. 600’ north of the NWC of 75th Ave. &
Lincoln St. in the Tolleson area
Site Size:
Approx. 10.4 acres
County Island Status:
Yes (City of Tolleson)
Additional
Comments:
The applicant is requesting a zone change from IND-3 to IND-3 IUPD
for the Clean Harbors Industrial project. This is an existing
industrial site located at the northwest corner of 75th Ave. and the
Union Pacific Railroad (UPRR) in the Tolleson area (although 75th
Ave. itself is maintained by the City of Phoenix).
Staff supports the applicant’s request. The subject property was the
first in the Tolleson area to be granted industrial zoning and
developed accordingly in the 1960s and is now consistent with
surrounding land uses in every direction. There are no rural,
residential, or community uses (such as schools, parks, or places
of worship) within a ½ mile radius of the property, which negates
the impact of a hazardous materials and warehousing facility on
surrounding uses. The location of the property at the corner of a
major arterial and a Class I railroad mainline further renders the site
an appropriate location for continued industrial uses. The tailored
development standards proposed with the IUPD overlay would have
no negative impact on adjacent uses.
There are no outstanding concerns from reviewing agencies. To
date, staff has not received any public comment, including from
Tolleson or Phoenix, regarding this case.
Commission
Recommendation:
On 3/5/26, the Commission voted 6-0 (motion by Vice Chair
Hernandez, D5, seconded by Commissioner Rochwalik, D3) to
April 8, 2026
Z250030
Page 2 of 3
adopt a motion recommending the Board of Supervisors approve
Z250030 subject to conditions ‘a’ – ‘h’:
a.
A Plan of Development is approved subject to the site plan entitled, “Site Plan for 330 S
75th Avenue,” consisting of three full-size sheets, dated January 2026, and stamped
received January 14, 2026. The Plan of Development may be amended administratively
under a separate application as long as the amendment complies with the established
IUPD development standards as approved by the Board of Supervisors. Staff may
determine slight refinements to remain in substantial conformance with the approved site
plan. Minor and major amendments to the site plan will be determined in accordance with
Chapter 3 of the Maricopa County Zoning Ordinance.
b.
Development of the site shall be in substantial conformance with the Narrative Report
entitled, “Narrative Report for 330 S 75th Ave / Clean Harbors Industrial Project,” consisting
of 11 pages, dated January 12, 2026, and stamped received January 14, 2026, except as
modified by the following conditions.
c.
The following Planning Engineering conditions shall apply:
1.
Proposed Basin A is showing ~6 feet of ponding. Pool barrier-compliant fencing is
required around any retention basin with ponding greater than 3 feet.
2.
If alterations on any existing structure reach the 50% substantial improvement
threshold, the entire structure must be brought into compliance with the Floodplain
Use Regulations (i.e. FFE at or above the regulatory flood elevation or the structure
must be floodproofed).
3.
Any development in the floodplain will require a floodplain use permit issued
concurrent with building permit(s) required for site development. The proposed
maintenance building will be required to meet current floodplain regulations.
4.
The subject premises is located within the County’s Urbanized Area and will
disturb more than one (1) acre. A Storm Water Pollution Prevention Permit
(SWPPP), issued by the County (PND), will be required prior to issuance of any
building
permits
required
for
site
development.
See:
https://www.maricopa.gov/DocumentCenter/View/6577.
5.
Engineering review of planning and/or zoning cases is for conceptual design only.
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.
Based on the conceptual design nature of the information submitted, changes to
the site layout may be necessitated by the final engineering design of the drainage
infrastructure.
7.
Detailed Grading and Drainage (Infrastructure) Plans must be submitted with the
application for Final Plat Approval and Building Permits.
d.
The following IND-3 IUPD standards shall apply:
April 8, 2026
Z250030
Page 3 of 3
1.
Maximum Height: 60’
2.
Minimum Front Setback: 14’
3.
Minimum Side Setback: 0’
4.
Minimum Parking Spaces: 1 space per 1,000 square feet of floor area
5.
Minimum Screening Required: Minimum 6’ chain-link fence. Building walls along
the property line may substitute for fencing.
6.
Screening Along 75th Ave.: Not required. Any screening improvements along 75th
Ave. shall be subject to permitting and requirements of the City of Tolleson and/or
the City of Phoenix, as applicable.
7.
Sight Visibility Triangles: None required
e.
The applicant and/or property owner(s) shall coordinate with the City of Tolleson and/or
the City of Phoenix, as applicable, for any improvements to site access and screening
within, adjacent to, or otherwise affecting their jurisdictions.
f.
Noncompliance with any of the conditions assigned to the approval of this Zone Change
by the Maricopa County Board of Supervisors may be grounds for revocation in
accordance with the requirements and procedures set forth in the Maricopa County
Zoning Ordinance.
g.
The property owners and their successors waive claim for diminution in value if the County
takes action to rescind approval due to noncompliance with conditions.
h.
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 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
/ Plan of Development. The Zone Change / Plan of Development enhances the value of
the property above its value as of the date the Zone Change / Plan of Development is
granted and reverting to the prior zoning results in the same value of the property as if the
Zone Change / Plan of Development had never been granted.
Presented by:
Nick Schlimm, Planner
Reviewed by:
Darren Gérard, AICP, Planning Manager
Attachment:
3/5/26 P&Z Packet (28 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 when available.
Z250030
Page 1 of 11
Report to the Planning and Zoning Commission
Prepared by the Maricopa County Planning and Development Department
Case:
Z250030 – 330 S 75th Ave – Clean Harbors Industrial
Hearing Date:
March 5, 2026
Supervisor District:
5
Applicant:
Zach Hill, Kimley-Horn
Owner:
Clean Harbors Environmental Services, Inc.
Request:
Zone Change from IND-3 to IND-3 IUPD
Site Location:
Generally located approx. 600’ north of the NWC of 75th Ave. & Lincoln St.
in the Tolleson area
Site Size:
Approx. 10.4 acres
Density:
N/A
County Island:
Yes
County Plan:
Vision 2030 Maricopa County Comprehensive Plan – Rural Development
Area (RDA)
Municipal Plan:
City of Tolleson – Business District
Municipal Comments:
None received to date
Support/Opposition:
None known
Recommendation:
Approve with conditions
Z250030
Page 2 of 11
Project Summary:
1.
The applicant, Zach Hill of Kimley-Horn, is requesting a zone change from IND-3 to IND-3 IUPD for
the Clean Harbors Industrial project. This is an existing industrial site located at the northwest
corner of 75th Ave. and the Union Pacific Railroad (UPRR) in the Tolleson area (although 75th Ave.
itself is maintained by the City of Phoenix).
2.
Industrial uses are not new to the site: what appears to have been a batch plant was developed
on the property in the 1960s, as shown in a site aerial photograph dated January – March 1969.
Likewise, County zoning maps show that the property was rezoned to IND-3 at some point in the
1960s, prior to the adoption of the modern Maricopa County Zoning Ordinance and prior to the
industrial zoning or development of any of the surrounding properties. Most of the existing
buildings onsite were added in the 1970s and 1980s, mostly before industrial uses were required
to be subject to plans of development (a requirement that was adopted in 1984). Since its initial
development, the industrial use onsite has been served via siding by the Union Pacific Railroad
(the Southern Pacific Railroad until 1996). Aside from some paving/grading and the periodic
addition and/or removal of small accessory structures, the site layout remained largely
unchanged until circa 2011, when the original batch plant was demolished. For much of the
following decade, the site was underutilized, and the remaining batch plant structures attached
to the main industrial building were demolished circa 2019. After this time, a new owner of the
property used it primarily for general industrial uses such as heavy equipment storage.
3.
In February 2025, shortly before selling the property to the current owner, the previous owner
submitted a request for an as-built plan of development to Maricopa County for administrative
review. In the narrative report for this land use case (LU250004), the applicant noted that the
proposal was on behalf of Clean Harbors Industrial, which was then in talks with the owner to
lease or purchase the property. Clean Harbors proposed to use the site for the operation of a
“cross-docking” facility for hazardous waste shipment. Hazardous waste materials would arrive
onsite from other locations in USDOT-approved sealed containers. The primary use of the site
would be the unloading and short-term storage (up to 10 days) of these containers, which would
remain sealed, followed by the loading and shipping of these containers to offsite locations. In
addition to this primary use, Clean Harbors also intended to use the existing buildings as a general
warehouse for their cleaning-related products, and to establish an onsite general office for
administrative purposes. With the as-built POD, Clean Harbors did not propose any expansion or
changes to the existing site. Staff administratively approved LU250004 on March 7, 2025.
4.
Clean Harbors took possession of the property in April 2025. Shortly thereafter, the applicant and
property owner did seek to expand the existing use. The applicant requested a pre-application
meeting, which was held on June 10, 2025. Staff recommended the applicant request a full POD
since the site was zoned IND-3. With an as-built POD already approved, a full POD application
would be required to entitle further expansions of the existing use. However, the applicant
submitted this rezoning request on September 12, 2025 to add an IUPD (Industrial Unit Plan of
Development Overlay Zoning District) to the site in order to customize zoning district standards
for site redevelopment.
5.
The request includes a concurrent POD, and while the zone change would preserve the existing
IND-3 zoning, it would add an IUPD overlay exclusive to the property. This overlay is intended to
tailor some of the applicable development standards, most of which would memorialize existing
site conditions that are out of compliance with MCZO requirements (chiefly setbacks, screening,
and site visibility triangles, summarized in the following IUPD table and further discussed in the
staff analysis section of this report).
Z250030
Page 3 of 11
REGULATION
BASE ZONING DISTRICT
REGULATIONS (IND-3)
PROPOSED ZONING DISTRICT
REGULATIONS (IND-3 IUPD)
Maximum Height
40'
60’
Maximum Height
Proximate to Rural Zoning
Height of any building
closer than 40’ to rural
zoning shall not exceed
distance to rural zoning
but need not be less than
10’ in height
60’
Minimum Front Yard
20’
14’
Minimum North Side Yard
5’
None
Minimum South Side Yard
5’
None
Minimum Rear Yard
None
None
Minimum Lot Area
6,000 SF
6,000 SF
Minimum Lot Width
60’
60’
Maximum Lot Coverage
60%
60%
Minimum Parking Spaces
1 per 600 SF (industrial)
1 per 900 SF (warehouse)
1 per 1,000 SF
Minimum Screening
Min. 6’ wall, fence, or
building wall
(adjacent to industrial)
Min. 6' solid wall
(adjacent to rural)
Min. 6’ chain-link fence or
building wall
Not required along front lot line.
Screening along 75th Ave. to
meet Tolleson and/or Phoenix
requirements.
Sight Visibility Triangles
25’ x 25’
None
6.
No changes to the existing use are proposed with this request. The few physical improvements
proposed are consistent with the existing use. These improvements include the installation of
new dock doors on the west side of the main warehouse building, along with a new paved area
for loading and truck parking. A new maintenance building measuring approx. 3,850 square feet
will also be constructed toward the south lot line. Two unenclosed loading structures measuring
approximately 24’ in height will be added along the railroad siding on the inside of the south lot
line. According to the site plan, these will not extend beyond the lot line over the UPRR mainline
and will serve only freight cars switched onto the property’s own siding. Additionally, the
employee parking lot will be reconfigured, providing up to 140 parking spaces, and the existing
pavement will be resurfaced. Truck parking and temporary truck storage will be utilized
throughout the site on the paved areas adjacent to buildings.
7.
The only other proposed improvements are to the existing entrances and site screening: the site
plan shows that a combination of existing, new, and improved chain-link fencing (generally 7’ in
height plus 1’ of barbed wire, but no less than 6’ in height) will screen the property from adjacent
land uses as well as provide separation between different areas within the site. Two new rolling
gates will be provided, one behind each driveway, as well as a new 72-square-foot enclosed guard
shack at the south gate.
8.
The owner will continue to use the existing four buildings onsite. These include a 2,280-square-
foot “receiving building” (office) near the front entrance, a 1,633-square-foot maintenance
building near the south lot line, a 5,036-square-foot shop building also near the south lot line, and
the 59,124-square-foot main operations building and warehouse along the north lot line. The color
Z250030
Page 4 of 11
palette of the buildings will remain typical for industrial uses and will aim to minimize heat
absorption and glare. Signage will be limited to site identification signs, OSHA-approved safety
signage, and security signage consistent with MCZO requirements. Finally, security lighting will
be limited to motion-activated lighting and other security-sensitive areas such as entry gates and
parking areas. All installed lighting will be directed downward and into the site as required by the
MCZO.
9.
The owner expects to employ up to 130 people, with most being field-based employees who will
start and begin the workday onsite. Hours of operation will generally occur from 7:00 a.m. to
11:00 p.m. Monday through Friday.
2025 Site Aerial
Z250030
Page 5 of 11
2025 Local Aerial
Z250030
Page 6 of 11
Zoning District Map
Site Plan Excerpt
Z250030
Page 7 of 11
Existing On-Site and Adjacent Zoning / Land Use:
10.
On-site:
IND-3 / General Industrial
North:
Not Zoned / Roosevelt Canal, then I-2 (Tolleson) / Industrial
South:
Rural-43 / UPRR, then I-1 (Tolleson) / Industrial
East:
75th Avenue (Phoenix), then A-1 (Phoenix) / Industrial
West:
I-2 (Tolleson) / Industrial
Utilities and Services:
11.
Water:
City of Phoenix
Wastewater:
City of Phoenix
School Districts:
Fowler Elementary School District & Tolleson Union High School District
Fire:
Rural Metro Fire Department
Police:
Maricopa County Sheriff’s Office
Right-of-Way:
12.
The following table includes the existing and proposed half-width for the adjacent right-of-way,
as well as the future classifications for the corresponding roadway, based upon the Maricopa
County Department of Transportation (MCDOT) Transportation System Plan 2040 and the City of
Phoenix Street Classification Map 2018.
Street Name
Half-width Existing R/W
Half-width Proposed R/W
Future Classification
75th Avenue
(Phoenix)
60’
55’ – 70’
Major Arterial
Adopted Plan:
13.
City of Tolleson General Plan 2024 (adopted November 4, 2014): Tolleson’s general plan places
the property, as well as the surrounding industrial properties, within the city’s El Districto, or
Business District. Per the general plan, El Districto comprises much of Tolleson’s total acreage
and hosts light manufacturing and distribution centers. The purpose of this district is to continue
Tolleson’s relationship with manufacturing and distribution companies, as well as to provide
services to the employees working at those locations. Uses in El Districto align with the industrial
districts in Tolleson’s zoning code, and the only development requirement identified in the general
plan is to discourage residential uses. The as-built property, including the improvements
proposed with this zone change and POD, is an appropriate land use within this land use category.
Public Participation Summary:
14.
The applicant complied with the requirements of the citizen review process by posting the site
and sending notification by first class mail to interested parties and adjacent property owners
within 300’ of the site. Two signs were posted onsite in accordance with applicable regulations.
To date, staff has not received any public comment, including from Tolleson or Phoenix, regarding
this case.
Outstanding Concerns from Reviewing Agencies:
15.
N/A
Z250030
Page 8 of 11
Staff Analysis:
16.
Staff supports the applicant’s request. The subject property was the first in the Tolleson area to
be granted industrial zoning and developed accordingly in the 1960s and is now consistent with
surrounding land uses in every direction. There are no rural, residential, or community uses (such
as schools, parks, or places of worship) within a ½ mile radius of the property, which negates the
impact of a hazardous materials and warehousing facility on surrounding uses. The location of
the property at the corner of a major arterial and a Class I railroad mainline further renders the
site an appropriate location for continued industrial uses. The tailored development standards
proposed with the IUPD overlay would have no negative impact on adjacent uses. In particular,
the reduced setback from the north lot line would accommodate existing site conditions that
predate the turn of the century and would be mitigated by the existing Roosevelt Canal, which
serves as a natural buffer between the subject site and the nearest development to the north.
Likewise, the UPRR mainline serves as a buffer between the subject site and the nearest
development to the south. As for screening, staff believes that allowing chain-link fencing (and
the north wall of the main warehouse where it parallels the north lot line) to serve as the screening
for the site will not negatively impact the surrounding industrial uses and will remain consistent
with the site conditions that have existed (without complaint) since it was first developed.
17.
Staff notes that this application was received before the updated Maricopa County Zoning
Ordinance was adopted effective January 9, 2026. The base development standards listed in the
IUPD table in the project summary of this report are those against which this application was
reviewed. Since the MCZO was updated, some of the IND-3 development standards, particularly
concerning setbacks, screening, and landscaping, have been strengthened. However, these
stricter development standards will not be applicable to this project since it was received before
the updates became effective. On the other hand, the updated MCZO relaxed parking and height
requirements in the IND-3 zoning district. Although relaxing the original standards is not required
to accommodate the existing site or its proposed improvements, staff will nevertheless
incorporate the relaxed standards into the IUPD overlay.
18.
Staff is keen to note one peculiar condition of the property, which is the presence of strip
annexation that separates the main site from the 75th Avenue right-of-way. Whereas the property
itself is in County jurisdiction, the strip annexation (which corresponds with two parcels under
mutual ownership with the subject site) is in Tolleson’s jurisdiction. Complicating matters further
is that the right-of-way is owned and maintained by Phoenix. This strip-annexation extends only
23’ into the gross area of the property (the total depth of the property measures nearly 1,200’),
but it still carries consequences for measuring the front setback, the placement of screening
along the front lot line, and the measurement of site visibility triangles. The existing front
screening for the property is accomplished by a chain-link fence that mostly follows the boundary
between the Phoenix right-of-way and Tolleson’s strip-annexation. Likewise, the accessory office
/ receiving building would exceed the minimum front setback required if it were measured just
from the right-of-way line. However, due to the strip annexation, the existing setback is deficient
by just over 5’. The required sight visibility triangles against the right-of-way would also be located
almost entirely within the strip-annexed area.
19.
The IUPD will allow a minimum front setback of 14’ (versus 20’) as measured from the east line
of the subject parcel, which separates County jurisdiction from Tolleson jurisdiction. The IUPD
will also waive the requirement for sight visibility triangles and screening along the front parcel
boundary. Instead, staff offers conditions of approval that will require any improvements onsite
to meet Tolleson’s and Phoenix’s requirements pertaining to sight visibility and screening along
frontage.
Z250030
Page 9 of 11
Recommendation:
20.
Staff recommends the Commission adopt a motion recommending that the Board of Supervisors
approve Z250030 subject to the following conditions ‘a’ – ‘h’:
a.
A Plan of Development is approved subject to the site plan entitled, “Site Plan for 330 S
75th Avenue,” consisting of three full-size sheets, dated January 2026, and stamped
received January 14, 2026. The Plan of Development may be amended administratively
under a separate application as long as the amendment complies with the established
IUPD development standards as approved by the Board of Supervisors. Staff may
determine slight refinements to remain in substantial conformance with the approved site
plan. Minor and major amendments to the site plan will be determined in accordance with
Chapter 3 of the Maricopa County Zoning Ordinance.
b.
Development of the site shall be in substantial conformance with the Narrative Report
entitled, “Narrative Report for 330 S 75th Ave / Clean Harbors Industrial Project,” consisting
of 11 pages, dated January 12, 2026, and stamped received January 14, 2026, except as
modified by the following conditions.
c.
The following Planning Engineering conditions shall apply:
1.
Proposed Basin A is showing ~6 feet of ponding. Pool barrier-compliant fencing is
required around any retention basin with ponding greater than 3 feet.
2.
If alterations on any existing structure reach the 50% substantial improvement
threshold, the entire structure must be brought into compliance with the Floodplain
Use Regulations (i.e. FFE at or above the regulatory flood elevation or the structure
must be floodproofed).
3.
Any development in the floodplain will require a floodplain use permit issued
concurrent with building permit(s) required for site development. The proposed
maintenance building will be required to meet current floodplain regulations.
4.
The subject premises is located within the County’s Urbanized Area and will
disturb more than one (1) acre. A Storm Water Pollution Prevention Permit
(SWPPP), issued by the County (PND), will be required prior to issuance of any
building
permits
required
for
site
development.
See:
https://www.maricopa.gov/DocumentCenter/View/6577.
5.
Engineering review of planning and/or zoning cases is for conceptual design only.
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.
Based on the conceptual design nature of the information submitted, changes to
the site layout may be necessitated by the final engineering design of the drainage
infrastructure.
Z250030
Page 10 of 11
7.
Detailed Grading and Drainage (Infrastructure) Plans must be submitted with the
application for Final Plat Approval and Building Permits.
d.
The following IND-3 IUPD standards shall apply:
1.
Maximum Height: 60’
2.
Minimum Front Setback: 14’
3.
Minimum Side Setback: 0’
4.
Minimum Parking Spaces: 1 space per 1,000 square feet of floor area
5.
Minimum Screening Required: Minimum 6’ chain-link fence. Building walls along
the property line may substitute for fencing.
6.
Screening Along 75th Ave.: Not required. Any screening improvements along 75th
Ave. shall be subject to permitting and requirements of the City of Tolleson and/or
the City of Phoenix, as applicable.
7.
Sight Visibility Triangles: None required
e.
The applicant and/or property owner(s) shall coordinate with the City of Tolleson and/or
the City of Phoenix, as applicable, for any improvements to site access and screening
within, adjacent to, or otherwise affecting their jurisdictions.
f.
Noncompliance with any of the conditions assigned to the approval of this Zone Change
by the Maricopa County Board of Supervisors may be grounds for revocation in
accordance with the requirements and procedures set forth in the Maricopa County
Zoning Ordinance.
g.
The property owners and their successors waive claim for diminution in value if the County
takes action to rescind approval due to noncompliance with conditions.
h.
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 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
/ Plan of Development. The Zone Change / Plan of Development enhances the value of
the property above its value as of the date the Zone Change / Plan of Development is
granted and reverting to the prior zoning results in the same value of the property as if the
Zone Change / Plan of Development had never been granted.
Presented by:
Nick Schlimm, Planner
Reviewed by:
Rachel Applegate, Planning Supervisor
Attachments:
Case Map (1 page)
Site Plan (3 pages)
Z250030
Page 11 of 11
Narrative Report (10 pages)
DPR comments (2 pages)
MCDOT-approved TIS waiver (1 page)
/
Maricopa County Planning & Development - Phoenix, AZ
5
Gross Acres: 10 approx.
Generated February 4, 2026 10:25 AM
Z250030
Application Name:
Legal Description
330 S 75th Ave - Clean Harbors Industrial
Applicant
Case Address
Zachary Hill
330 S 75TH AVE
Applicant Phone/Email
Parcel Primary:104-11-004X
4802072669
PHOENIX, AZ 85043
Map scale 1:2,885
Supervisor District No.
IUPD
ZACHARY J.
HILL
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01
ENGINEER
ZONING
SURVEYOR
BENCHMARK
ENGINEER
UTILITIES
WATER
CITY OF PHOENIX
FIRE
RURAL METRO
SEWER
CITY OF PHOENIX
ELECTRIC
SALT RIVER PROJECT
GAS
SOUTHWEST GAS
BASIS OF BEARING
7000 N. 16TH ST. #120-184
PHOENIX, AZ 85020
TELEPHONE: (602) 448-6812
CONTACT: AARON MICHALENKO
CURRENT ZONING: IND-3
PROPOSED ZONING: IND-3 IUPD
APN: 104-11-004X
CASE NUMBER: Z250030
FOWLER ELEMENTARY SCHOOL DISTRICT
TOLLESON UNION HIGH SCHOOL DISTRICT
CITY OF PHOENIX BENCHMARK PID# 120
NGVD29 EL = 1031.78 (PHOENIX)
NAVD88 EL = 1033.853 (USED)
DATUM DIFFERENCE NAVD88 - NGVD29: -2.073
CONTRACTORS BE AWARE THERE IS A -2.073 VERTICAL
DIFFERENCE BETWEEN CITY DATUM TO COUNTY DATUM.
PLEASE CHECK BEFORE BUILDING TO ENSURE CORRECT
DATUM IS USED.
A PORTION OF THE NORTHEAST QUARTER AND A PORTION OF THE SOUTHEAST QUARTER OF SECTION 11,
TOWNSHIP 1 NORTH, RANGE 1 EAST OF THE GILA AND SALT RIVER BASE AND MERIDIAN, MARICOPA
COUNTY, ARIZONA, AND DESCRIBED AS FOLLOWS:
BEGINNING AT A POINT ON THE EAST LINE OF SAID SECTION 11 AND BEING 438.8 FEET NORTH MEASURED
AT RIGHT ANGLES NORTHERLY FROM THE CENTERLINE OF THE MAIN TRACK OF THE UNION PACIFIC
RAILROAD (FORMERLY ARIZONA EASTERN RAILROAD COMPANY) AS IT IS LOCATED OVER AND ACROSS THE
EAST HALF OF THE EAST HALF OF SAID SECTION 11 AND FROM WHICH THE EAST QUARTER CORNER OF
SAID SECTION 11 BEARS SOUTH 00°11'03" WEST, A DISTANCE OF 413.51 FEET AND SAID POINT BEING THE
NORTHEAST CORNER OF THAT CERTAIN PARCEL DESCRIBED AS PORTION NO. 1 OF PARCEL NO. 2
RECORDED IN DOCKET 1693, PAGE 323, RECORDS OF MARICOPA COUNTY, ARIZONA;
THENCE SOUTH 87°50'02" WEST AND ALONG THE NORTH LINE OF THE AFOREMENTIONED DOCKET, 60.06
FEET TO A POINT ON THE WEST RIGHT OF WAY LINE OF 75TH AVENUE AND THE TRUE POINT OF BEGINNING
OF THE HEREIN DESCRIBED PARCEL;
THENCE SOUTH 0°11'03" WEST, PARALLEL WITH AND 60.00 FEET WEST OF THE EAST LINE OF THE
NORTHEAST QUARTER OF SAID SECTION 11, A DISTANCE OF 50.00 FEET;
THENCE ALONG THAT CERTAIN PARCEL AS DESCRIBED IN RECORDING NO. 2007-0851603 AS CORRECTED
AND RE-RECORDED IN RECORDING NO. 2007-1008736, RECORDS OF MARICOPA COUNTY, ARIZONA THE
FOLLOWING 5 COURSES AND DISTANCES:
NORTH 89°48'57" WEST, A DISTANCE OF 23.00 FEET;
NORTH 00°11'03" EAST, A DISTANCE OF 27.00 FEET;
NORTH 89°48'57" WEST, A DISTANCE OF 18.00 FEET;
SOUTH 00°11'03" WEST, A DISTANCE OF 50.00 FEET;
SOUTH 89°48'57" EAST, A DISTANCE OF 41.00 FEET;
THENCE SOUTH 0°11'03" WEST PARALLEL TO AND 60.00 FEET WEST LINE OF THE NORTHEAST QUARTER OF
SAID SECTION 11 AND DEPARTING SAID CERTAIN PARCEL AS DESCRIBED IN RECORDING NO. 2007-1008736,
A DISTANCE OF 315.76 FEET TO A POINT ON A LINE 50 FEET NORTHERLY, MEASURES AT RIGHT ANGLES,
FROM THE CENTERLINE OF THE MAIN TRACK OF THE UNION PACIFIC RAILROAD (FORMERLY ARIZONA
EASTERN RAILROAD COMPANY);
THENCE ALONG SAID LINE SOUTH 87°50'00" WEST, A DISTANCE OF 1184.46 FEET PARALLEL WITH SAID
CENTERLINE;
THENCE NORTH 1°24'00" WEST, A DISTANCE OF 388.48 FEET;
THENCE NORTH 87°50'02" EAST ALONG THE AFOREMENTIONED DOCKET, A DISTANCE OF 1195.21 FEET TO
THE TRUE POINT OF BEGINNING.
THE BASIS OF BEARINGS SHOWN HEREON ARE SURFACE
MEASUREMENTS AND REFER TO THE CENTER LINE OF S
75TH AVE, SHOWN AS N0°11'03"E.
LEGAL DESCRIPTION
OWNER
CLEAN HARBORS
42 LONGWATER DRIVE
NORWELL, MA 02061
TELEPHONE: 781-422-9629
CONTACT: MATT PHANEUF
DBE SURVEYING, LLC
KIMLEY-HORN & ASSOCIATES
1001 W. SOUTHERN AVE, SUITE 131
MESA, ARIZONA 85210
TELEPHONE: (480) 207-2666
CONTACT: ZACH HILL, P.E.
REQUEST ZONE CHANGE FROM IND-3 TO IND-3 IUPD FOR 330 S 75TH AVE
SITE PLAN
SITE SUMMARY TABLE
PARKING
REQUIRED:
1 PER 1,000 SQ FT OF FLOOR AREA
1 x 71,995 / 1,000 = 72 PARKING SPACES
PROVIDED:
135 STANDARD SPACES
5 ADA SPACE
VICINITY MAP
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PROPOSED SITE PLAN
01
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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
General Location: The proposed site is on a Maricopa County parcel located roughly 8 miles due west
of downtown Phoenix, adjacent to the east end of Tolleson’s city limits on a +/-10.39-acre privately
owned parcel, in the east of section 11, township 1 north, range 1 east in unincorporated Maricopa
County, Arizona.
330 S 75TH AVE / CLEAN
HARBORS INDUSTRIAL PROJECT
CASE #: Z250030
REQUEST: Zone Change with Overlay from IND-3 to IND-3 IUPD
on Approximately 10.39 Acres
NARRATIVE REPORT FOR
01-12-2025
EXHIBIT A – VICINITY MAP
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
TABLE OF CONTENTS
1.
PURPOSE OF REQUEST .............................................................................................................. 3
2.
DESCRIPTION OF PROPOSAL .................................................................................................... 3
2.1 Site Summary Information: .......................................................................................................... 3
2.2 Proposed Uses (Summary): ......................................................................................................... 6
Hours/Days of Operation: ............................................................................................................. 6
Number of Employees: ................................................................................................................. 6
Description/Location of Buildings: ............................................................................................. 6
Color Palette: ................................................................................................................................. 6
Sign Details: ................................................................................................................................... 6
Screening Wall/Fence Details and Location: .............................................................................. 6
3.
RELATIONSHIP TO SURROUNDING PROPERTIES ................................................................... 6
4.
LOCATION AND ACCESSIBILITY ................................................................................................ 7
Location: ........................................................................................................................................ 7
Access: ........................................................................................................................................... 8
5.
CIRCULATION SYSTEM ................................................................................................................ 8
Off-site Circulation (Access): ....................................................................................................... 8
On-site Circulation ........................................................................................................................ 8
Parking and Loading ..................................................................................................................... 8
6.
DEVELOPMENT SCHEDULE ........................................................................................................ 9
7.
COMMUNITY FACILITIES AND SERVICES ................................................................................. 9
8.
PUBLIC UTILITIES AND SERVICES ............................................................................................. 9
9. COMPLIANCE WITH CITY/TOWN GENERAL PLAN………………………………………………...9
TABLES
1. INDUSTRIAL UNIT PLAN OF DEVELOPMENT…………………………………………………...….10
EXHIBITS
EXHIBIT A – VICINITY MAP
EXHIBIT B – EXISTING SITE PLAN
EXHIBIT C – PROPOSED SITE PLAN
PROJECT TEAM
DEVELOPER
ENGINEERING/PLANNING
CLEAN HARBORS INDUSTRIAL
KIMLEY-HORN
CONTACT: MATTHEW PHANEUF
CONTACT: ZACH HILL
(781) 422-9629
(480) 207-2669
PHANEUF.MATTHEW@CLEANHARBORS.COM
ZACH.HILL@KIMLEY-HORN.COM
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
EXHIBIT D – ADJACENT ZONING/OWNERSHIP
EXHIBIT E – SITE ACCESS
1. PURPOSE OF REQUEST
Kimley-Horn (the “Applicant”), on behalf of Clean Harbors Environmental Services INC,(the “Property
Owner”) is requesting approval of a Zone Change with Overlay (rezone) from IND-3 (Heavy Industrial)
to IND-3 IUPD (Industrial) Zone for the Clean Harbors Industrial site / 330 S 75th Ave Project (“Project”)
on one (1) parcel (APN: 104-11-004X), sized approximately ±10.39 acres. The Project is an existing
industrial site with planned improvements that require a rezone to IUPD due to proposed modifications
to the existing IND-3 zoning standards.
2. DESCRIPTION OF PROPOSAL
2.1 Site Summary Information:
The ±10.39 acres included are inclusive of the following one (1) underlying parcel:
# Assessor Parcel No. (APN) Owner
Acreage Township & Range Section
1
104-11-004X
CLEAN HARBORS ENVIRONMENTAL
SERVICES INC
10.39
1N 1E
11
The property owner ‘Clean Harbors Environmental Services INC’ (based out of Massachusetts) was
founded in 1980 and has become the leading environmental and industrial service provider and largest
hazardous waste disposal company in North America. It has more than 400 service centers,
strategically located across North America providing emergency response services, performing
planned work on customer locations and is a recognized leader in environmental emergency response
services.
This service center is located on a Maricopa County island at 330 S 75th Ave, between the Tolleson
and Phoenix city limits, in an industrial zoned area. The site features four existing buildings (receiving,
shop, maintenance and main operations building) along with storage areas, employee parking, and a
connection to the Union Pacific rail line to the south. Clean Harbors Environmental Services INC
purchased the property in April 2025 and intends to make improvements to create a fully operational
service center. All operations at this site will comply with the allowed uses under the county’s IND-3
zoning criteria.
The proposed improvements include the installation of new Dock Doors on the west side of the main
building, along with a new paved area for loading and truck parking. A new maintenance building will
also be constructed. Additionally, the employee parking lot will be reconfigured, and the existing site
will be resurfaced. (see exhibit B & C Site Plans). Truck parking and temporary truck storage will be
utilized throughout the project on the pavement areas adjacent to buildings.
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
EXHIBIT B - EXISTING SITE PLAN
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
EXHIBIT C - PROPOSED SITE PLAN
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
2.2 Proposed Uses (Summary):
Hours/Days of Operation:
The site will be in operation and/or production from 7am – 11pm Monday - Friday.
Number of Employees:
The operation activities are anticipated to employ up to 130 with most being field based who will start
and end the workday at subject service center.
Description/Location of Buildings:
The site currently has four existing buildings: the receiving building (2,280 SF) on the east side at the
entry point, a maintenance building (1,633 SF) on the west side, the main operations building (59,124
SF) on the north side, and a shop building (5,036 SF) on the south side. One of the proposed
improvements includes adding a new maintenance building (3,850 SF), which will be situated next to
the existing shop building. Two unenclosed loading structures, each with a height of approximately 24
feet, will be added adjacent to the existing railroad along the south side of the site.
Color Palette:
The buildings on site will feature a light color palette, adhering to commonly accepted industry
standards and matching the surrounding industrial setting. Final color choices will aim to minimize heat
absorption and glare as much as possible.
Sign Details:
Signage will be limited to site identification signs, OSHA approved safety signage, and security signage
in accordance with Chapter 14 of the Maricopa County Zoning Ordinance.
Screening Wall/Fence Details and Location:
The property is surrounded mostly by industrial, and warehouse uses. To ensure proper site security,
related to these surrounding uses, the site perimeter will be enclosed with a 7’ tall chain link fence and
1’ barbed wire (8’ total) where needed along the perimeter of the Project.
Security Lighting:
Security lighting will be limited to motion-activated lighting and other security sensitive areas such as
entry gates, and parking areas, as shown on the Plan of Development. All lighting installed will be
directed downward and into the site, in compliance with Maricopa County Zoning Ordinance Article
1112, to ensure lighting will not be cast onto neighboring properties as much as possible.
3. RELATIONSHIP TO SURROUNDING PROPERTIES
The project is situated on a Maricopa County island, surrounded by other industrial businesses. To the
south, it borders a Union Pacific rail line, while the north is bordered by the Roosevelt District canal.
The east side adjoins City of Phoenix land, featuring a Target distribution center zoned as A-1 (Light
Industrial) with an industrial land use designation according to the Phoenix general plan. The north,
south, and west sides of the project are adjacent to City of Tolleson land, zoned I-1 (Light Industrial)
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
and I-2 (General Industrial), with a general plan designation of ‘Business District’ that includes large
transportation, storage, and distribution centers.
Surrounding Adjacent General Land Descriptions
Direction
Zoning
Land Use Designation
Land Use
North
I-2 (Tolleson)
Business District
Industrial
East
A-1 (Phoenix)
Industrial
Industrial
South
I-1 (Tolleson)
Business District
Industrial
West
I-2 (Tolleson)
Business District
Industrial
4. LOCATION AND ACCESSIBILITY
Location:
The Project is located in the east of section 11, township 1 north, range 1 east on an unincorporated
Maricopa County parcel roughly 8 miles due west of downtown Phoenix.
EXHIBIT D – ADJACENT ZONING/OWNERSHIP
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1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
Access:
•
The Project is located 1.25 miles south of the I-10 / S 75th Avenue interchange.
•
Primary regional access to the site will be via I-10 southbound on S 75th Avenue just past the
intersection with W Van Buren Street.
•
The entry/exit point to the site will be via the existing S 75th Avenue ROW from the east side of the
site. (Exhibit E – Site Access).
5. CIRCULATION SYSTEM
Off-site Circulation (Access):
Access to the site is most direct via the I-10 / S 75th Avenue Highway interchange, south on 75th
Avenue. Secondary access from the east is available through the Loop 202 / W Buckeye Rd Highway
interchange, located 2 miles west of Loop 202, 0.5-mile drive north on 75th Avenue.
No significant change to the traffic is expected from the proposed development, compared to the
previous uses. A waiver on the Traffic Impact Study has been submitted to MCDOT.
On-site Circulation
The project site at +/-10.39 acres is relatively small and will be served by an internal network of asphalt
and concrete driveways and parking lot lanes with a separate/dedicated truck entrance off 75th Avenue.
Parking and Loading
EXHIBIT E – SITE ACCESS
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kimley-horn.com
1001 West Southern Avenue Suite 131, Mesa, AZ 85210
480 207 2666
The required number of parking spaces for this site is 72 spaces. This rezone application proposes
reconfiguring and resurfacing the employee parking lot and providing 135 standard parking spaces with
five ADA spaces.
6. DEVELOPMENT SCHEDULE
The proposed modifications to the site are anticipated to start and be completed in 2026.
7. COMMUNITY FACILITIES AND SERVICES
The Project is located within the community service district boundaries:
•
Fowler Elementary School District
•
Tolleson Union #214 High School District
The Project is not anticipated to generate any adverse impacts to the listed school districts.
8. PUBLIC UTILITIES AND SERVICES
Utility service(s) to the site will be provided by the following providers:
UTILITY/SERVICE
AGENCY/PROVIDER
Water
City of Phoenix
Sewer
City of Phoenix
Electric Service
Salt River Project (SRP)
Fire Protection (including EMS and Ambulatory
Services)
Rural Metro
Police Protection
Maricopa County Sheriff Office
Telephone
Cell District 1/Century Link
9. COMPLIANCE WITH CITY/TOWN GENERAL PLAN
The site is located on a Maricopa County island/parcel within Tolleson's municipal planning area and
general plan, though it is outside Tolleson's annexation boundaries. According to Tolleson's general
plan, the site and surrounding area are designated as a 'Business District,' intended for light
manufacturing, distribution centers, and services for Tolleson employees. Additionally, the parcels to
the west and south are identified as industrial growth areas. The City of Phoenix's general plan
designates the adjacent area to the east, across 75th Ave, as 'Industrial.'
This rezone application does not change the existing industrial use or base zoning category and does
not require a comprehensive plan amendment with the county. The proposed improvements will
enable continued industrial operations on the site, consistent with the surrounding land use and in
compliance with Tolleson's general plan classification. As noted in pre-application comments, there
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480 207 2666
will be coordination with the City of Tolleson's development services throughout the application
process.
STANDARD CATAGORY
IND-3 ZONING DISTRICT
STANDARD
PROPOSED IND-3 IUPD ZONING
DISTRICT STANDARD
MAX. HEIGHT
40'
40'
MIN. FRONT YARD
20’
14’
MIN. NORTHSIDE YARD
5’
NONE
MIN. REAR YARD
NONE
NONE
MIN SOUTH SIDE YARD
5’
NONE
MIN. LOT AREA
6,000 SQ. FT.
6,000 SQ. FT.
MIN. LOT WIDTH
60'
60'
MAX. LOT COVERAGE
60% MAXIMUM
60% MAXIMUM
PARKING REGULATIONS 1 PER 1,000 SF OF FLOOR
AREA
1 PER 1,000 SF OF FLOOR AREA
SCREENING NOT ADJ. TO
RURAL/RESIDENTIAL
ZONING
MIN. 6’ WALL, FENCE, OR
BUILDING WALL
MIN. 6’ WALL, FENCE OR BUILDING
WALL
SCREENING ADJ. TO
RURAL/RESIDENTIAL
ZONING
MIN. 6’ WALL
MIN. 6’ FENCE OR BUILDING WALL
SIGHT VISIBILITY
TRIANGLE
25’X25’
0’X0’
Table 1: Industrial Unit Plan of Development
Zachary Kobza, P.E.
Planning & Development
301 W. Jefferson St., Suite 170
Phoenix, Arizona 85003
Phone: (602) 723-5248
Fax: (602) 506-8762
www.maricopa.gov/planning
Email address:
Zachary.Kobza@maricopa.gov
Planning & Development
Engineering Plan Review
Date:
January 29, 2026
Memo To: Darren Gerard, AICP, Planning Manager, Department of Planning &
Development
Attn:
Nicholas Schlimm, Planner, Planning & Development Services
cc:
Bob Fedorka, PE, Engineering Manager, Planning & Development
From:
Zachary Kobza, PE, Senior Plans Examiner Engineer, Planning &
Development
Subject:
Z250030 – IUPD
APN(s):
104-11-004X
Engineering Review has reviewed the first plan and report routed for review on
1/15/2026, for the subject application and has no further objections:
The following stipulations will apply:
1. Proposed Basin A is showing ~6 feet of ponding. Pool barrier-compliant fencing
is required around any retention basin with ponding greater than 3 feet.
2. If alterations on any existing structure reach the 50% substantial improvement
threshold, the entire structure must be brought into compliance with the
Floodplain Use Regulations (i.e. FFE at or above the regulatory flood elevation
or the structure must be floodproofed).
3. Any development in the floodplain will require a floodplain use permit issued
concurrent with building permit(s) required for site development. The proposed
maintenance building will be required to meet current floodplain regulations.
4. The subject premises is located within the County’s Urbanized Area and will
disturb more than one (1) acre. A Storm Water Pollution Prevention Permit
(SWPPP), issued by the County (PND), will be required prior to issuance of
any building permits required for site development.
See: https://www.maricopa.gov/DocumentCenter/View/6577
5. Engineering review of planning and/or zoning cases is for conceptual design
only. 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. Based on the conceptual design nature of the information submitted, changes
to the site layout may be necessitated by the final engineering design of the
drainage infrastructure.
Page 2 of 2
7. Detailed Grading and Drainage (Infrastructure) Plans must be submitted with
the application for Final Plat Approval and Building Permits
Please contact me with any questions.
TIS Waiver | Maintenance Shop
Traffic Study Waiver Request
APN 104-11-004X
zach.hill@kimley-horn.com
Z250030
Plans Sealed By
Not Applicable
Laxmikanth Narwa, P.E./602.506.8677
Int. Review No.
Date
Item No.
Page No.
Review Comment
Code
LN
1
2/2/2026
1
General
The below comments are limited to traffic study impacts for the proposed development based
on the land use described in the Project Summary of this comment review sheet. Any additions
to the subject parcel that will meet MCDOT criteria for a Traffic Statement (TS) or Traffic
Impact Study (TIS), will require the developer to submit a TS or TIS for review and approval by
MCDOT.
LN
1
2/2/2026
2
General
As per the waiver request letter, no additional traffic will be generated due to the proposed
site activities. As per the information provided by the applicant for the traffic study waiver
request, the project meets MCDOT criteria for a waiver request. MCDOT anticipates no impacts
on to the surrounding MCDOT roadway network. Therefore, MCDOT has no traffic concerns on
proposed usage of this property.
LN
1
2/2/2026
3
General
Approval of Traffic Study Waiver for this project site does not constitute approval of R/W
limits or dedication requirements, geometric layout of Site Plan details, and any other permit
related requirements applicable for this development.
The Traffic Study Waiver Is Approved
Consultant Comment
Discipline
Consultant
Signature
Date
The developer is seeking for traffic study waiver for the property located at 330 S 7th Avenue, Tolleson, AZ. The site is within unicorporated Maricopa County with parcel
number APN# 104-11-004X. The applicant is proposing to constructing concrete pavement and overhead doors to allow truck-to-truck transfers in the northwest portion of
the property and a proposed building that will serve as a maintenance shop. The site will serve vehicles already using the property and doesn't anticipate increase in traffic to
and fro from the Site.
Traffic Engineering Review Comment Sheet
Project Name
Location
MCDOT File No.
Reviewer/Phone No.
Consultant: Please use the code and respond to each comment in the Consultant Reply Column. This sheet is for our records, please answer every question and sign and date your acknowledgment or the plans will be sent back
to complete the process. Send back the marked-up plans and a new set of plans along with this sheet. Thank you for your cooperation.
Consultant Code: A=Will Comply B=Deleted C=Consultant to Evaluate
General Project Summary:
Page 1 of 1