S2021025 BOS REPORT.PDF

Maricopa County — Formal (2022-04-06)

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April 6, 2022 
S2021025 
Page 1 of 1 
Report to the Board of Supervisors 
Prepared by the Maricopa County Planning and Development Department 
 
 
 
Board Hearing Date: 
April 6, 2022 
 
Case #/Title:   
 
 
S2021025 – Zanjero Trails Parcel 31D       
 
Supervisor District: 
4 
 
Applicant/Owner:  
HilgartWilson, LLC / Maricopa Water District   
 
Request: 
Replat of Zanjero Trails Parcel 31D for Parcel 31, which 
comprises 106 residential lots and 11 tracts in the R1-6 RUPD 
PAD zoning district   
 
Site Location: 
Generally located Approx. 1,100 ft. west of the SWC of 
Glendale Avenue and Perryville Road, in the Buckeye area 
 
Site Size: 
Approximately 29 acres 
 
County Island Status: 
No  
Additional 
Comments: 
Staff considers this replat to be in substantial conformance 
with the approved Zanjero Trails Parcel 31 Preliminary Plat 
(S2021003) and associated Infrastructure Plat (S2021027). The 
applicant has routed a copy of the plat to all the 
municipalities within three miles of the subject property and 
to all intended utility providers. There were no objections to 
the request raised by any of these agencies. The plat meets 
all applicable subdivision regulations and zoning regulations 
of the R1-6 RUPD PAD (Z2005031 & Z2016072).  
 
Recording fees will be furnished at the time of plat 
recordation.  All requirements of the Maricopa County 
Department 
of 
Transportation, 
the 
Maricopa 
County 
Environmental Services Department, the Flood Control District 
of Maricopa County, and the Drainage Review Division of the 
Maricopa County Planning and Development Department 
have been met. 
  
Recommendation: 
Approval  
 
Presented by: 
 
Sean Watkins, Planner 
Reviewed by: 
 
Darren Gerard, AICP, Planning Manager   
 
Attachments: 
 
Letter to the Board of Supervisors (1 page)  
 
 
Reduction of Replat (7 pages) 
 
 
Narrative Report (10 pages) 
 
 
ADWR Certificate (3 pages)

2141 East Highland Avenue, Suite 250 ▪ Phoenix, Arizona 85016 ▪ 602-490-0535 
 
 
 
1    of    1 
 
August 4, 2021 
 
 
Maricopa County Board of Supervisors 
301 W. Jefferson, 10th Floor  
Phoenix, AZ 85003 
 
 
RE:  
Re-Plat of Zanjero Trails Infrastructure Plat – Zanjero Trails Parcel 31D 
HILGARTWILSON Project No.:  2194 
 
 
Dear Board, 
 
 
This letter is to request the approval of the Re-Plat of Zanjero Trails Infrastructure Plat – Zanjero Trails Parcel 
31D. 
 
This parcel is being subdivided by: 
SBH ZANJERO TRAILS L.P. 
6720 N. Scottsdale Road, Suite 250 
Scottsdale, AZ 85253 
 
The plat was prepared by: 
HILGARTWILSON, LLC 
RLS# 32222: Brian J. Benedict 
 
This project is within 3 miles of the City of Buckeye, the City of Goodyear and the City of Glendale and the 
plat has been provided to them.  
 
 
Thank you, 
Diego Ortiz, P.E.  
 
Respectfully Submitted,   
HILGARTWILSON, LLC

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
’
RE-PLAT
OF
ZANJERO TRAILS
INFRASTRUCTURE PLAT -
ZANJERO TRAILS PARCEL 31D
MARICOPA COUNTY, ARIZONA
CASE NUMBER S2021025
“
”
“
”
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

P: 602.490.0535 / F: 602.368.2436
www.hilgartwilson.com
2141 E. HIGHLAND AVE., STE. 250
PHOENIX, AZ 85016
2/11/22

RE - PLAT NARRATIVE  
FOR 
ZANJERO TRAILS - PARCEL 31D 
 
SOUTHWEST CORNER OF THE GLENDALE AVENUE ALIGNMENT AND 
PERRYVILLE ROAD ALIGNMENT 
 
MARICOPA COUNTY, ARIZONA 
 
 
 
CASE #S2021025 
REFERENCE #S2021003,   
#Z2005031, #Z2016072 & 
#Z2021056 
 
July 23, 2021 
 
Revised: October 18, 
2021 
Prepared For: 
SBH Zanjero Trails LP 
6720 N Scottsdale 
Road, Suite 250 
Scottsdale, Arizona 
85253 
Prepared by: 
HILGARTWILSON 
2141 E. Highland 
Avenue, Suite 250 
Phoenix, AZ 85016 
Phone: (602) 490-0535

ZANJERO TRAILS – PARCEL 31D 
 
 
Re - Plat Narrative 
Table of Contents 
1.0 
PURPOSE OF REQUEST .............................................................................................................. 1 
2.0 
DESCRIPTION OF PROPOSAL ..................................................................................................... 1 
4.0        RELATIONSHIP TO SURROUNDING PROPERTIES ...................................................................... 3 
5.0        LOCATION AND ACCESSIBILITY .................................................................................................. 3 
4.1 
Circulation .......................................................................................................................... 3 
4.1.1 Vehicular ............................................................................................................................. 3 
4.1.2 
Ultimate Roadway Network ............................................................................................... 4 
4.2 
Pedestrian .......................................................................................................................... 4 
5.0 
DEVELOPMENT SCHEDULE ........................................................................................................ 4 
6.0 
COMMUNITY FACILITIES AND SERVICES ....................................................................................5 
6.1 
Schools ............................................................................................................................... 5 
6.2 
Recreational Amenities ...................................................................................................... 5 
6.3 
Parcel Amenities ................................................................................................................. 5 
6.4 
Police and Fire Protection ................................................................................................. 5 
7.0 
PUBLIC UTILITIES AND SERVICES .............................................................................................. 5 
7.1 
Water Facilities ................................................................................................................... 6 
7.2 
Wastewater Facilities ......................................................................................................... 7 
7.3 
Dry Utilities ......................................................................................................................... 7 
7.4 
Drainage ............................................................................................................................. 7 
 
 
 
TABLES 
 
TABLE 1 – Approved R1-6 RUPD PAD Development Standards Comparison

Page 1 
 
1.0 
PURPOSE OF REQUEST 
 
Zanjero Trails – Parcel 31 (the Project, Property, or Site), part of Zanjero Trails Development 
Master Plan (DMP), is a proposed single family residential subdivision located on 
approximately 137 gross acres. The Project area is generally situated at the southwest corner 
of the Glendale Avenue alignment and Perryville Road alignment in unincorporated Maricopa 
County. Refer to the Vicinity Map in the cover sheet for Project location. 
 
The Project is located in unincorporated Maricopa County and is a part of Development Master 
Plan (DMP 2018005), approved by the Board of Supervisors on December 12, 2018 and 
Residential Unit Plan of Development (RUPD) and Commercial Unit Plan of Development 
(CUPD) Rezone with Planned Area Development (PAD) overlay (Case #’s Z2005031 and 
Z2016072), approved by the Board of Supervisors dated February 21, 2007 and February 15, 
2017 respectively. It should be noted that a portion of the Zanjero Trails - Parcel 31 (Parcel 31-
E), approximately 8.7 acres located at the southwest corner of the intersection of Perryville 
Road and Glendale Avenue, is currently a part of Parcel 30 zoned as Rural Zoning District (RU-
43). This portion of the Project is currently going through a rezone process to include this area 
as part of Parcel 31 and change the zoning from Rural Zoning District (RU-43) to Single-Family 
Residential Zoning District (R1-6) (Case #Z2021056). A preliminary plat complying the rezone 
and associated stipulations has been submitted to the Planning and Zoning Commission. 
 
This narrative is for Parcel 31D of Zanjero Trails – Parcel 31. Zanjero Trails - Parcel 31 consists 
of final plats for parcels 31B, 31C, 31D, and 31E as well as an infrastructure plat. The 
infrastructure plat will define the parcel boundaries and dedicate the required easements and 
half street right-of-way for Perryville Road (Minor Arterial) fronting the eastern boundary of the 
Project and the northern half street right-of-way for Glendale Avenue (Arterial), from the 
intersection of the proposed Perryville Road alignment to the east, where it will connect to the 
current termination point of Glendale Avenue. Note that the fronting half street of the Glendale 
Avenue towards the northern boundary of the Project will not be constructed as a part of this 
development as it is not needed to serve this site and would lead to a dead end that would not 
serve any other developments in the area. The final plat for Parcel 31D will be a re-plat of the 
infrastructure plat. The table below provides number of lots and tracts for the Parcel 31D final 
plat:   
 
Parcel Summary 
Parcel 
Use 
Minimum 
Lot Width 
Minimum 
Lot Area 
Typical Lot 
Size 
# of 
Lots 
# of 
Tracts 
31D 
R1-6 RUPD PAD 
 
55.73’ 
 
7,800 sq. ft. 
65’X125’ 
106 
11 
 
2.0 
DESCRIPTION OF PROPOSAL 
 
This narrative is for the final plat of Parcel 31D of Zanjero Trails – Parcel 31. The plat will 
identify the perimeter boundary, rights-of-way, public utility easements (PUEs), site visibility 
triangles, vehicular non-access easements, and lots within the plat. The final plat for Parcel 
31D will be a re-plat of the parcel defined on the Infrastructure Plat of Zanjero Trails - Parcel 
31. The development of the Project will comply with the preliminary plat (Case #S2021003). 
Zanjero Trails Parcel 31D is included within Zanjero Trails Parcel 31 RUPD PAD Overlay Zone 
(Z2005031 and Z2016072). Refer to Table 1 – R1-6 RUPD Development Standards 
Comparison below for specific development regulations compared to the base zoning district.

Page 2 
 
 
Table 1 – R1-6 RUPD PAD Development Standards Comparison 
Items in bold are changes from the base zoning 
REGULATION 
BASE ZONING DISTRICT 
REGULATIONS (R1-6) 
CURRENT ZONING DISTRICT 
REGULATIONS (R1-6 RUPD PAD) 
Max. Height 
30' or 2 stories 
30' or 2 stories 
Min. Front Yard 
20' 
20' *(1) 
Min. Side Yard 
5' 
5' 
Min. Street-side Yard 
10' 
10' 
Min. Rear Yard 
25' 
15' 
Lot Area (min) 
6,000 sq. ft. 
6,000 sq. ft. 
Min. Lot Width 
60' 
53' 
Lot Area per Dwelling 
Unit (min) *(2) 
6,000 sq. ft. 
6,500 sq. ft. 
Max. Lot Coverage 
50% 
50% 
Parking Spaces 
2/du 
2/du  
Max. Privacy Wall 
Height 
6' 
6' privacy wall w/ max. 7' 
column above a max. 3' 
retaining wall 
Maximum Height of 
Subdivision 
Monument 
6' 
10' Primary 
6'-8" Secondary 
Maximum Subdivision 
Sign Area (sign area 
as defined by MCZO 
1408.1) 
32 sq. ft., 6' high with the 
base at least 1/2 the width 
70 sq. ft. Primary *(3) 
24 sq. ft. Secondary *(3) 
Notes: 
(1) Front yard setback may be reduced to 10' for side entry garages or forward living spaces. 
(2) Lot Area per D.U. =total area of lots and open spaces, excluding all public and private 
streets, divided by the total number of lots. This shall only apply to single family residential lots. 
(3) Maximum Primary and Secondary Sign Area includes logo. 
 
The proposed improvements for Parcel 31E will dedicate a 2-foot sewer easement behind the 8-foot 
PUE for the installation of the sewer service valve per the agreement between the developer and the 
utility service provider and will be identified in the plat. All of the proposed residential lots within the 
Parcel 31E development will allocate two standard parking spaces in the garage and will be designed 
to meet the MCZO standard of 9’ x 18’ per space.

Page 3 
 
 
3.0 
RELATIONSHIP TO SURROUNDING PROPERTIES 
 
Zanjero Trails – Parcel 31 is bound by undeveloped desert land owned by the Maricopa County 
Water District to the north and east. The Project is fronted by the Glendale Avenue alignment 
to the north and the Perryville Road alignment to the east. The Beardsley Canal lies 
immediately to the west as well as the White Tanks Flood Retarding Structure No.3. Canyon 
View High School lies to the South of the Project.  
 
Parcel 31D is bound by future Parcel 31E to the north, future Parcel 31C to the south, the 
Perryville Road alignment to the east and the Beardsley Canal to the west. Refer to the 
attached Vicinity Map in the cover sheet. 
 
4.0 
LOCATION AND ACCESSIBILITY 
 
The infrastructure plat will dedicate the required easements and half street right-of-way for 
Perryville Road (Minor Arterial), the northern half street right-of-way for Glendale Avenue 
(Arterial), from the intersection of the proposed Perryville Road alignment to the east, where it 
will connect to the current termination point of Glendale Avenue, as well as the southern 
fronting half street right-of-way for Glendale Avenue. 
 
The main traffic access to Parcel 31 is provided from Perryville Road with three access 
locations all along Perryville Road. One from Glendale Avenue via Lamar Road and other two 
locations north from Bethany Home Road to the south of the Project via Marlette Avenue and 
Sierra Vista Drive respectively. The Loop 303 freeway is located approximately 3.0 miles east 
and will serve as an important transportation corridor for Zanjero Trails – Parcel 31. Interstate 
10 lies approximately 4.5 miles to the south and will provide connection to downtown Phoenix. 
Parcel 31D will have primary access via West Sierra Vista Drive serving as an entry road 
extending from North Perryville Road along the Project’s eastern boundary. Secondary access 
may be obtained either through West Marlette Drive located south within Parcel 31B, or West 
Lamar Road located north within Parcel 31E. It should be noted that all four parcels within 
Zanjero Trails – Parcel 31 are to be developed at the same time. In the event that one of the 
Parcels is developed earlier than the other, a temporary easement will be provided. 
 
 
4.1 
Circulation 
 
4.1.1 
Vehicular 
 
A Traffic Impact Study (TIS) for Zanjero Trails – Parcel 31 has been 
prepared by CivTech, dated August 2021. The TIS analyzes the impacts 
of the Zanjero Trails - Parcel 31 proposed land use plan on the 
transportation network in the vicinity of the site. According to the TIS, 
the Project is anticipated to generate an estimated total of 3,910 daily 
trips when fully developed. This traffic disperses in such a way that it 
can be adequately accommodated by the internal and connecting 
arterial system. The TIS determines the number of lanes required at 
Project build-out for major streets serving the development and 
provides recommendations related to traffic signage, signalization, and 
turn movements. Below is a summary of the recommended 
improvements to the connecting roadway system in conjunction with 
the Zanjero Trails – Parcel 31 development.

Page 4 
 
 
4.1.2 
Ultimate Roadway Network 
 
• 
Primary access to the community will be provided from the Perryville 
Road alignment at three proposed locations: One south from Glendale 
Avenue and two north of Bethany Home Road to the south of the 
Project. 
 
• 
Fronting half-street improvements to Perryville Road will be 
constructed from just north of Bethany Home Road and connect with 
Glendale Avenue. This will be developed as an urban minor arterial 
street per the MCDOT Roadway Design Manual. 
 
• 
The fronting half street of Glendale Avenue, from the Beardsley Canal 
to the proposed Perryville Road Alignment, as well as the northern half 
street of Glendale Avenue, from the intersection from the proposed 
Perryville Road alignment to the current termination point of Glendale 
Avenue, will be constructed as part of the Project. This half-street along 
Glendale Avenue will be developed as an arterial street per the MCDOT 
Roadway Design Manual. 
 
• 
All internal roadways will be designed PER MCDOT Roadway Design 
Standards. The proposed local streets will have 50-feet of right-of-way 
and an attached sidewalk. 
 
• 
Entry roads are proposed to have a 70-feet right-of-way with a 10-foot 
landscape median and attached sidewalk. 
 
• 
Traffic signals is recommended at the intersection of Perryville Road 
and Bethany Home Road in order to effectively move traffic volumes. 
 
• 
A traffic signal should not be installed until one or more of the traffic 
signal warrants of the Manual on Uniform Traffic Control Devices are 
met. 
 
4.2 
Pedestrian 
 
Sidewalks on both sides of local and fronting arterial street right-of-ways will provide 
pedestrian circulation. On arterial streets, the pedestrian paths/sidewalks will be set 
back from the curb and gutter and buffered by a landscape strip to separate the 
various modes of transportation, i.e., auto, bicycle, pedestrian. Pedestrian circulation 
will also be accommodated by sidewalks on all residential streets providing 
connections between the park site, open spaces, and neighborhood. 
 
 
5.0 
DEVELOPMENT SCHEDULE 
 
As previously mentioned, the Project will be split into four single-family residential parcels 
which are all to be developed at the same time. Parcel 31D is one of the four parcels within 
the overall Zanjero Trails – Parcel 31 development. In the event that the construction of any of 
the parcels is to be phased so they are not constructed all together, interim infrastructure 
would be provided so that each parcel can “stand alone” during the interim condition while the 
rest of the parcels catch up.

Page 5 
 
 
6.0 
COMMUNITY FACILITIES AND SERVICES 
 
All necessary community facilities to service the Project, such as parks and amenities, will be 
provided by the development. 
 
6.1 
Schools 
 
Zanjero Trails is located entirely within the Litchfield Elementary and Agua Fria Union 
High School District’s Jurisdictional boundaries. The Project will be served by the Agua 
Fria High School District High School located south of the Property. 
 
6.2 
Recreational Amenities 
 
This parcel will reserve ample open space and will share a central 3.6-acre community 
park and common area with Parcel 31C. Given the central location of the two parcels, 
this park will be the biggest within the community and will serve as a core recreation 
area that will encourage meaningful interactions amongst residents. Community open 
space and recreational areas will be constructed concurrently with the rest of the 
community in order to be enjoyed by future residents and used as a selling feature of 
the community. 
 
6.3 
Parcel Amenities 
 
Parcel Parks will be located in strategic open space areas where they may be most 
easily accessed by homeowners. Parcel Parks will include improvements such as 
pathways, playgrounds, ramadas, and useable turf areas. These parks are intended to 
be more heavily used by residents of the development for active play and gatherings. 
Passive Parks will be located in open spaces that serve as retention areas and 
connections throughout the development. Passive Parks will include improvements 
such as pathways and useable turf areas. 
 
6.4 
Police and Fire Protection 
 
Zanjero Trails - Parcel 31 is located within the Maricopa County Sherriff’s Office (MCSO) 
service area. The nearest Maricopa County Sheriff’s Department office are District 
Facility III, located at the southeast corner of Dysart and Bell Roads and District Facility 
II, located at the northeast corner of Dysart and Van Buren. 
 
Zanjero Trails – Parcel 31 is located within the Buckeye Valley Fire District service area 
for fire service. Will serve letter has been obtained from Buckeye Fire District and will 
be included with the submittal. 
 
7.0 
PUBLIC UTILITIES AND SERVICES 
 
All necessary utilities to serve the Project are currently available or will be brought to the site 
during development. Utilities and services for the Project will be provided by the following 
providers. A utility commitment table is provided below listing each of the utility providers:

Page 6 
 
 
Utility Commitment Table 
Utility 
Provider 
Water 
EPCOR Water 
Sewer 
Liberty Utilities 
Electric 
APS 
Telephone 
Century Link 
Gas 
Southwest Gas Company 
Cable TV 
Cox Communications 
Police 
Maricopa County Sheriff's Department 
Fire 
Buckeye Valley Fire District 
Refuse 
Waste Management 
School District 
Litchfield Elementary School District 
Agua Fria Union High School District 
 
 
7.1 
Water Facilities 
 
The Project is located within EPCOR Water’s Certificate of Convenience and Necessity 
(CCN) for water service and is within Zone 2 of EPCOR’s Agua Fria District. The Project 
will be served by EPCOR’s Water Plant #12, located approximately 2.5 miles southeast 
of the Project, south of Camelback Road and east of Citrus Road. Water Plant #12 
serves two pressure zones, Zone 1 and Zone 2, with two separate trains of booster 
pumps for each zone. The Project will be served by the Zone 2 pumps which will 
ultimately include five pumps, each having a flow of 1,500 gpm and a total dynamic 
head of 243 feet (approximately 105 psi). Water Plant #12 also contains one 1.5 MG 
storage reservoir, and the site has room for an additional two storage reservoirs of the 
same size for a projected ultimate build-out storage capacity of 4.5 MG. 
 
Existing water infrastructure within the Project vicinity includes 12-inch water lines 
along the Perryville Road alignment (east of the Project) and Perryville Road 
immediately to the southeast boundary of the Project adjacent to Canyon View High 
School extending northwest from Bethany Home Road. 
 
Water improvements for the Project will include a 12-inch water line extending along 
Perryville Road adjacent to the eastern boundary of the Project and an internal network 
of looped 8-inch water lines. This 12-inch line extends further north along the northern 
half-street of Glendale Avenue, which will be constructed as part of this development. 
This proposed 12-inch water main will have two points of connection to the existing 
12-inch water line along Glendale Avenue and Perryville Road. Note that there will be 
no extension of the water line along the fronting half-street of Glendale Avenue; 
however, a stub will be provided for an extension to serve future development.

Page 7 
 
 
7.2 
Wastewater Facilities 
 
The Project is located within Liberty Utilities’ (Litchfield Park Service Company) CC&N 
for wastewater service. The site was also previously added to Liberty’s MAG 208 area 
to treat wastewater flows through a MAG 208 Amendment for an area known as the 
Northwest Group territory. Wastewater flows from the Project will be routed to Liberty’s 
Palm Valley Water Reclamation Facility (WRF), located along McDowell Road and west 
of Litchfield Road, for treatment. The Palm Valley WRF has a treatment capacity of 
approximately 4.1 MGD and is currently being expanded for increased treatment 
capacity. 
 
The closest wastewater infrastructure within the Project vicinity consists of an existing 
8-inch gravity sewer main along the Perryville Road Alignment southeast of the Project. 
The 8-inch sewer main ties into an 18-inch sewer main which then upsizes to 21-inch 
and then a 24-inch regional sewer main as it routes wastewater flows to the Palm 
Valley Water Reclamation Facility. The Project will be served by an internal network of 
proposed 8-inch onsite gravity sewer mains. These mains will generally route flows 
from each parcel and tie into an 8-inch gravity sewer main along Perryville Road. 
 
7.3 
Dry Utilities 
 
Utility services to Zanjero Trails – Parcel 31 will include: phone service by CenturyLink 
or Cox Communications, natural gas service by Southwest Gas, electrical service by 
APS and cable television by CenturyLink or Cox Communications. Will serve letters will 
be provided from each. 
 
7.4 
Drainage 
 
The area surrounding the Project generally slopes to the southeast. The Project is 
located within the regional Loop 303/White Tanks Area Master Drainage Plan Update 
study area. The White Tanks Flood Retarding Structure #3 (FRS No. 3) is located 
southwest of the Project, the FRS No. 3 Outfall Channel is adjacent to the western 
boundary. Both the FRS No. 3 and the Outfall Channel intercepts all flows coming from 
the White Tank Mountains located to the northwest and eliminates regional offsite 
flows from reaching the western boundary of the Project. Drainage areas north of the 
Project site flow to the southeast towards the Perryville Road Wash located east of the 
site. More specifically, the offsite flows generated north of the Project are produced by 
the undeveloped desert land between the Glendale Avenue alignment and Northern 
Avenue alignment. The Glendale Avenue alignment currently has a dirt road with an 
elevated profile. As a result, localized offsite flows generated north of the roadway 
alignment are directed eastward towards the Perryville Road Wash before causing any 
impact to the northern boundary of the Project. 
 
The Project will propose a culvert crossing along Glendale Avenue alignment as a part 
of Glendale Avenue improvements to allow for the runoff conveyed by the Perryville 
Road Wash to continue southward similar to the existing conditions. The elevations of 
the roadway will remain at a similar elevation to allow for the existing drainage pattern 
to be maintained. HILGARTWILSON will be going through the CLOMR/LOMR process to 
revise the floodplain at the Glendale Avenue crossing based upon the proposed culvert. 
The CLOMR/LOMR will also propose a temporary detention basin, north of the Glendale 
Avenue alignment to reduce the flow crossing the roadway and the appropriate culvert 
size will be determined. This CLOMR/LOMR will be independent of the Zanjero Trails 
Parcel 31 plan review process and approvals. No offsite flows impact the eastern 
boundary as this area slopes towards the southeast.

Page 8 
 
 
Onsite flows will be conveyed to retention basins throughout the Project in appropriate 
locations. Retention volume equivalent to the 100-year, 2-hour storm runoff will be 
provided for all developed portions of the Project. Retention basins will generally be 
designed such that the total depth is 4 feet, with 3 feet of storage and an additional 
foot of freeboard, and will dewater within the 36-hour limit. Additional safety measures 
will be implemented if retention basins exceed the maximum slope and depth. Existing 
flow patterns will be maintained, while offsite flows will not be comingled with onsite 
flows. All drainage design for the Project will be in conformance with the Planning and 
Development standards for Maricopa County and Section 1205 of the Maricopa 
County Zoning Ordinance.

Via Electronic and Certified Mail 
January 3, 2021 
HilgartWilson 
2141 E Highland Ave, Suite 250 
Phoenix, AZ 85016 
 
Re: 
Certificate of Assured Water Supply 
Zanjero Trails Parcel 31 
DWR File No. 27-701199.0000 
 
Dear Mr. Ortiz: 
 
The Arizona Department of Water Resources (Department) has determined that the criteria for an Assured 
Water Supply pursuant to A.R.S. § 45-576 and A.A.C. R12-15-701 et seq. have been met, and therefore the 
Director has decided to issue Certificate of Assured Water Supply No. 27-701199.0000, attached.  
 
EPCOR - Agua Fria will provide water to the subdivision.  The source of supply will be groundwater. The 
annual estimated water demand of the subdivision is 182.75 acre-feet per year for 422 lots, and the 
groundwater allowance for the subdivision for the 100-year period is 182.75 acre-feet. Pursuant to A.R.S. 
§ 45-578(F), the total projected average annual replenishment obligation at build-out for each plat under 
the Certificate is 180.93 acre-feet per year.  
 
The Department suggests you record your Certificate of Assured Water Supply in the appropriate county 
recorder’s office. This will provide you with a permanent public record of the Certificate. This 
determination is applicable only to the persons or entities specified on the Certificate and for the plat 
reviewed by the Department, including non-material plat changes pursuant to A.A.C. R12-15-708.  
 
Pursuant to A.R.S. § 41-1092.03, the Director’s determination and decision to issue the Certificate is an 
appealable agency action.  You are entitled to appeal this action. If you wish to appeal this action, you 
must file a written appeal within thirty (30) days from receipt of this letter. A summary of the appeal 
process and an appeal form are attached, should you elect to pursue this option.  
 
Sincerely, 
 
David L. McKay 
Manager, AAWS & Recharge Permitting
DLM/evs 
of
1110 West Washington Street, Suite 310
Phoenix, Arizona 85007 
602.771.8500 
Director
Governor

Page 2
Subdivision Name: Zanjero Trails Parcel 31 
File Number: 27-701199.0000 
 
CC: Via Electronic Mail: 
 
CAGRD 
Arizona Department of Real Estate
Arizona Corporation Commission 
Arizona Department of Environmental Quality 
Arizona State Land Department

STATE OF ARIZONA
DEPARTMENT OF WATER RESOURCES
CERTIFICATE OF ASSURED WATER SUPPLY
This is to certify that
Maricopa County Municipal Water Conservation District Number One, a political 
subdivision of the State of Arizona, Owner,
ha
met the requirements of A.R.S. §§ 45-576 and A.A.C.R12-15-701 et. seq., and 
By powers vested in the Director of the Arizona Department of Water Resources by the
State of Arizona, and subject to the conditions contained in A.A.C. R12-15-701 et seq.,
issued this Certificate of Assured Water Supply for
Zanjero Trails Parcel 31  
Township 2 North, Range 2 West, Section 4, 9
GSRB&M Maricopa County, PHOENIX AMA
The referenced subdivision consists of 422 lots as described in the preliminary plat on file with the 
Department, and has an estimated water demand of 182.75 acre-feet per year.  The subdivision 
will be served groundwater by EPCOR - Agua Fria.
This Certificate is invalid as to any entity not named above.  
This Certificate may be assigned pursuant to A.A.C. R12-15-705.
Certificate Number: 27-701199.0000
TYPE A CERTIFICATE
ARIZONA DEPARTMENT OF WATER RESOURCES
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Program Manager  
  Date