TAC Review Comments

City of El Mirage — Regular Meeting (2023-10-03)

Extracted text (via pymupdf) 46053 characters

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

MEMORANDUM
Development Application Review Comments
TO:

John Meissner, Threaded Studios
FROM
Jose A. Macias, Senior Planner

Development Services Department, Planning & Zoning
RE:

PZ23-01-01 Sunbelt El Mirage Site Plan Approval
DATE:
August 21, 2023
Mr. Meissner,
Please see the review comments from El Mirage Technical Advisory Committee (TAC) for the proposed
site plan approval zoning application mentioned above.

BUILDING & SAFETY – Brigham Bennett
1. No comments.

ECONOMIC DEVELOPMENT – Tom Doyle
2. No comment.

ENGINEERING – Bryce Christo
3. See the attached memorandum and

FIRE DEPARTMENT – Fire Chief Michael Long
4. Did not see the location of a fire hydrant on the submitted plans. A hydrant will be
required to be installed for the project.

PLANNING & ZONING – Jose A. Macias
5. Please add the following statement to the site plan. a. “Any change of use or occupancy
of any building or buildings, including additions thereto requiring more parking, shall
not be permitted until such additional parking spaces as required by this chapter are
furnished.”

6. The preliminary landscape plan has been reviewed and approved by the Senior Planner as
part of the development site plan review. The preliminary landscape plan will be included
in the zoning application staff report and presented to the Planning and Zoning
Commission and City Council where additional stipulations may be imposed.

7. All required trees shall be a minimum of 15 gallons in size and at least 50% of those
trees must be 24-inch box or larger size. All shrubs shall be a minimum of five gallons
in size. All 15-gallon trees must be a minimum of eight feet in height, four feet in spread,
and one and one-quarter inches trunk caliper at the ground level. All 24-inch box and
larger trees shall be a minimum of ten feet in height, four feet in spread and two and a
half inches trunk caliper at the ground level.
a. Actions required: Revise the LS plan to meet the 50% of trees to be in a 24”
box and 10” in height, four feet in spread and two and a half inches trunk
caliper at the ground level.
8. The final landscape plan shall be in conformance with the approved preliminary plan and
any stipulated changes or additions and shall be approved by the Zoning Administrator or
designee prior to the issuance of a building permit.
9. All changes in landscape plans before, during, or after preliminary or final landscape plan
approval and/or landscape installation shall be approved by the Zoning Administrator or
his or her designee.
10. A separate sign permit for signs other than for the address and building numbers will be
required, this includes monument, pole, wall signs and other sign types permitted.
11. A final plat will be required to record the lot combination, easements and/or dedication of
land prior to issuing the Certificate of Occupancy. Separate fees will apply.
POLICE DEPARTMENT – Andrew Vanderwerf
12. No comment.

PUBLIC WORKS – Scott Ketchmark
13. No comments regarding the Sunbelt Site Plan Approval.

If you have any questions regarding these comments or would like to set-up a follow up meeting or call,
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:
Sunbelt Rentals – Development Application Review
DATE:
08-07-23

Below are the Engineering Division’s comments for the above referenced submittal prepared in
July 2023. These items will have to be addressed prior to the Planning and Zoning Meeting.

Context Site Plan
1. Provide an aerial photo of the subject site and surrounding areas.
2. Provide color photographs of subject site and surrounding improvements and show photo
reference numbers on the context plan.

Phase I Environmental Site Assessment
3. Provide a Phase I ESA.

The below items will have to be addressed during the Construction Plan Submittal.

Cover Sheet (Sheet CO)
1. Site Data Table
a. The Total Land Area is incorrect.
b. The Surrounding Property Land Use Section is incorrect.
c. The parking required shall be based on 1 space per 400 sf of sales and service
buildings and 1 space per 10,000 sf of outdoor display area.
2. Legend – The turning radii for emergency vehicles shall be 19.5’ for inside and 45’
for outside.
3. FIRM Information – The information for the map is outdated.
4. Declaration of Responsible Charge – The project is within El Mirage, not Maricopa
County.

General Notes (Sheet C100)
5. All applicable City Notes will need to be added including General Information Notes
(City Detail EM-101-1), Water Notes (EM-101-7) and possibly Signing & Striping
Notes (EM-101-8).
6. Engineer’s Notes – The AAC section to reference is R18-4-213.
7. Dry Well Notes
a. Note 1 – Dry wells no longer get registered through ADEQ.
b. Note 2 – This note can be removed as City Grading & Drainage Note 6 shall
apply.

c. Note 3 – The Engineer shall estimate the number of dry wells required and
then on site testing during construction will determine if the number of
proposed dry wells shall be increased or decreased.

All Plans
8. Show all building setback lines. The required setbacks are 20 feet along Butler Drive,
10 feet along El Mirage Road, and 5 feet along the north and west property lines.
9. Show the boundary lines of the property with bearings and distances.
10. A 1-foot Vehicular Non-Access Easement (VNAE) is required along the frontage of
El Mirage Road except at the proposed private driveway.
11. An 8’ Public Utility Easement (PUE) is required along El Mirage Road.
12. Plans shall include applicable City Notes. Call out MAG, City, etc. details to be used.
Use the City’s 2023 Design & Development Standards Manual (DDSM) as a guide
for the final design.

Grading & Drainage Plans (Sheets C102 & C103)
13. Show topographic contours.
14. Provide existing and proposed grade shots throughout the project area to show how
the site shall be graded and how drainage will flow through the proposed site. Add
slopes to the proposed driveway. Show the finished floor of the existing and proposed
buildings.
15. There appears to be ponding in the rear of the parcel. Verify that the entire site drains
to a basin.
16. 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.
17. The finished floor elevations are required to be a minimum of 12 inches above the
100-year high-water level of any adjacent retention basin and 14 inches above the
ultimate outfall of the site. Show the location and elevation of the ultimate outfall for
this site.
18. The 100 year water elevation of the proposed retention basins 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.
19. Show the High Water Level (HWL) and bottom elevations, volumes required and
provided and overflow elevations for all basins.
20. The arrows for Section A should be pointing north.
21. The cross sections on Sheet C103 should be labeled A and B.
Fire Line Plan (Sheet C104)
22. The turning radii shall be 19.5’ for inside and 45’ for outside.
Utility Plan (Sheets 4 & 5)
23. The site shall have a looped water main that connects to two separate water mains,
one in Butler Drive and one in El Mirage Road.
24. Water valves are required along the main, approximately every 500 feet, and at
locations so that the maximum number of hydrants to be out of service is two.
25. Hydrants shall be spaced at a maximum of 300 feet. Final hydrant locations will be
reviewed by the Fire Department.

26. Any hydrants within the project site will be private and painted Safety Red per City
Detail EM-360 while any offsite hydrants will be public and painted Safety Yellow.
All hydrants, public or private, require markers per MAG Detail 122.
27. Domestic and landscape services each require a separate tap, meter and backflow
preventer. Meters shall be within the right of way and backflow preventers shall be
on private property but not within the PUE. Fire service lines require a separate tap
and backflow preventer.
28. This parcel has an existing septic system since there is no sanitary sewer available in
the area. The proposed improvements will have to either install a new septic system
or connect to the existing system that may require an expansion. All improvements
associated with the septic system must be reviewed and approved by Maricopa
County Environmental Services Department (MCESD).
29. It is not recommended to install utility lines within the driveway.
30. Show utility horizontal and vertical clearance information per MAG Detail 404 and
City Detail EM-402.
31. All aboveground utilities shall maintain a minimum of 6 feet of clearance from all fire
hydrants and fire suppression devices per City Detail EM-361.
32. Each proposed driveway shall have at least one streetlight.
33. Show the location of any on-site lighting. A Photometric Plan will be required that
shows 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. Show the foot candles along the centerline
of El Mirage Road and Butler Drive to verify that the proposed lighting will not
exceed the maximum limit.

Paving Plan (Sheet C106)
34. The driveways shall be per MAG or City details. Stop signs are recommended at each
driveway. Verify all driveways have a minimum throat of 50 feet unless they could
potentially be signalized in the future in which the length shall be a minimum of 150
feet.
35. A “Do Not Enter” sign (R5-1, 36”x36”) shall be placed at the proposed El Mirage
Road driveway.
36. Verify that any driveway to be used by a truck can accommodate a WB-67 vehicle
without encroaching into the adjacent lane. An Autoturn or equivalent exhibit shall be
provided.
37. Show the sight distance requirements at each proposed driveway per City Detail EM-
158.
38. Driveway spacing shall adhere to City Code Sections 154.103 (C) and (D) and City
Detail EM-259. Show the following distances measured from nearest face of curb to
nearest face of curb.:
a. Between the proposed driveway on El Mirage Road and Butler Drive.
b. Between the proposed driveway on Butler Drive and El Mirage Road.
c. Between the proposed driveway on Butler Drove and the existing driveway on
Butler Drive.
39. All parking spaces shall be striped with a minimum 4-inch painted line.
40. When parking spaces are adjacent to a sidewalk, the sidewalk shall be a minimum of
6 feet wide or parking blocks shall be installed.
41. 6-inch MAG type curbing is required around all driveways and parking lots. The
parking lot curbing shall be no closer than 3 feet to any property line.

42. Any fire access road shall be a minimum of 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 this access road. Provide a template that is
20 feet wide with a minimum inside radius of 19.5 feet and an outside radius of 45
feet.
43. It appears the fire access road is running through fuel tanks near the existing 5,000 sf
building. Can these be relocated?
44. Provide additional dimensions for the sidewalks, curb radii, etc.
45. The fuel island use shall conform to Arizona Department of Environmental Quality
(ADEQ) requirements as stated in Section 4-3(B)(8) of the City’s Design &
Development Standards Manual (DDSM).
46. Show any existing and proposed exterior signs.
47. Grading and dry well information shall be placed on the Grading & Drainage Plans.
48. Keynotes
a. Keynotes 1 and 2 are the same note. Please provide a copy of the referenced
Geotechnical Report.
b. Keynote 3 – Label the width of the openings.
c. Keynote 4 – Extruded curb is not permitted. The curb must be a MAG type.
d. Keynote 6 - Trash enclosures shall meet the minimum requirements of City
Detail EM-113.

SWPPP Plan (Sheets C107 & C108)
49. A copy of the attached SWPPP Guidelines must be filled out and submitted to the
City with the civil plans. All items on that document must be addressed on the
SWPPP.
50. Provide protection for the dry wells.
51. Revise the sheet numbers to C108 in the Construction Notes.
52. Update the details on Sheet C108 to the 2018 versions.

Preliminary Landscape Plans
53. Add City Landscaping and Irrigation Notes (City Detail EM-101-4) to the plan set.
54. Add the Site Distance Easement per City Detail EM-158 to the existing and proposed
driveways and the intersection of Butler/El Mirage.
55. DG is required on all non-paved areas both on site and within the right of way
adjacent to the project site.
56. All plantings at maturity shall maintain a minimum of 6 feet of clearance from all fire
hydrants and fire suppression devices per City Detail EM-361.
57. No walls or trees shall be placed within any Public Utility Easement (PUE).
58. Trees shall not be placed within 5 feet of any City curb or sidewalk or within 6 feet of
any public utility.
59. 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.
60. Irrigation plans will be required.

Exterior Elevations
61. No comments.

ALTA Survey
62. The ALTA survey must be prepared within the last 6 months. Please provide an
updated version.

63. This plan has not been signed.

Title Report
64. The Title Report must be prepared within the last 30 days. Please provide an updated
version.

Preliminary Drainage Report
65. The finished floor elevation of the proposed building shall be a minimum of 12 inches
above the 100-year base flood elevations and high-water level of any adjacent
retention basin and 14 inches above the ultimate outfall of the site.
66. The site is responsible for retaining all onsite drainage as well as the drainage of the
half rights of way of all public roadways along its frontage, including El Mirage Road
and Butler Drive. The calculations shall take the entire onsite and offsite areas into
account, not just the proposed area to be developed, in order to determine the basin(s)
size(s).
67. The City requires the 100-year storm event to be based on a rainfall of 2.4 inches.
68. 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.
69. Provide High Water Level (HWL) and bottom elevations, volumes required and
provided for all basins. Note the elevation and location of the low outfall of the lot.
70. Drywell calculations are required. It is recommended to use an infiltration rate of 0.1
cfs per drywell.
71. A Final Drainage Report will be required. The report shall provide a Tributary Area
Map that breaks down the contributing flow to each basin and/or stormwater
structure.

Preliminary Water Report
72. Provide a table that shows the Average Day Demand, Max Day Demand and Peak
Hour Demand per the attached Water System Design Criteria.
73. A Fire Flow Test must be performed. The City’s Public Works Department must
observe the test. Please contact the Public Works Department (623-876-4251) one
week prior to the test.
74. The minimum size meter the City allows is a 5/8 inch.

Preliminary Sewer Report
75. A Sewer Report is not required as there is no sanitary sewer available in the area.

Traffic Impact Statement (TIS)
76. The report is noted as a “Draft”. Please provide a final version.
77. Executive Summary & Attachment B - The City of El Mirage criteria shall be used,
not MCDOT. See the City’s Auxiliary Lane Criteria.
78. Introduction - The traffic counts provided are for a location 1.5 miles away and were
taken prior to opening of Northern Parkway. The City obtain counts in 2023 which
resulted in 7,644 vehicles per day in the southbound direction (562 in the am peak
hour, 625 in the pm peak hour) and 7,853 per day in the northbound direction (566 in
the am peak hour, 682 in the pm peak hour). The counts have been attached.
79. Figure 3 does to match the provided Site Plan.
80. Access – It is noted that “the El Mirage Road proposed access aligns with an existing
access to the east, though left turns in and out from both east and west are prohibited

by a raised median.” The Site Plan shows the proposed El Mirage Road driveway as
an “exit only”. What turning movements are being requested for this driveway? There
is also a median break at this intersection.
81. Trip Generation
a. The third paragraph refers to Goodyear. Please revise.
b. It is noted that the site is 6.96 acres but it is 9.68 acres.
82. What are the volumes expected (daily and am/pm peaks) for each of the driveways,
existing and proposed?
83. The values in Tables 13 through 16 do not seem to match the values in Appendix A.
84. Right Turn Lanes
a. The City of El Mirage criteria shall be used, not MCDOT. The City Auxiliary
Lane Criteria requires any driveway on an arterial, such as El Mirage Road, to
have a deceleration lane. However, the Site Plan shows this driveway as an
“exit only” so no deceleration is required. The Butler Drive driveways shall be
reviewed for right turn lanes.
b. This section of the report needs to be revised.
c. The speed limit of El Mirage Road in this location is 50 mph.
85. Provide any recommendations for the intersection that the proposed driveway on El
Mirage Road creates. Are their any recommendations due to the driveway being
constructed within a right turn lane/lane drop?

Responsibilities of the Previous Owner
86. The previous owner of the property obtained a permit in 2019 for improvements on
the east side of the parcel. Several items that were required as part of that permit were
never installed or were allowed to be deferred until the onsite improvements were
proposed. These items are noted below and will be required as part of this project.
a. An existing fire hydrant along El Mirage Road needs to be relocated to
provide at least 1 foot of clearance between the nozzle and back of sidewalk.
b. Installation of a 1.5-inch landscape service line and 1.5-inch backflow
preventer.
c. Installation of a fire hydrant along Butler Drive.
d. Installation of the curb termination west of the eastern driveway entrance.
e. Installation of a 9-inch thick concrete driveway entrance and 6” vertical curb
for the driveway. The proposed Site Plan appears to show removal of the
existing driveway entrance.
f. Relocation of the existing 25 MPH speed limit sign. The existing sign was
removed during construction of the original driveway entrance but was never
replaced.
g. Installation of three new streetlights along El Mirage Road.
h. Installation of landscaping, irrigation, and decomposed granite along the
project frontage.

Miscellaneous
87. A Final Plat per Chapter 1, Section B-2 of the City’s Design & Development
Standard Manual (DDSM) will be required prior to Certificate of Occupancy. The
Plat shall show:
a. All right of way and easement dedications including PUEs, VNAEs, etc.
b. A 1-foot Vehicular Non-Access Easement is required along El Mirage Road
except at legitimate driveways.

88. A Geotechnical Report will be required to provide asphalt/concrete pavement
sections. Verify the proposed pavement sections can handle 75,000 lbs. for any fire
access lane or more if the trucks entering and existing the site will be heavier.
89. 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.
90. An Approval to Construction (ATC) will be required from MCESD for the water line
extensions. A copy shall be provided to the City prior to the release of any
Engineering permit.
91. A copy of the MCESD approval for the installation of/connection to the septic system
shall be provided to the City prior to the release of the Certificate of Occupancy.
92. A Dust Control Permit from the County will be required prior to the release of any
Engineering permit.
93. A Notice of Intent (NOI) from ADEQ will be required prior to release of any
Engineering permit.
94. Any cutting of the pavement in El Mirage Road and Butler Drive will require
Pavement Cut Fees per the most current Fee Schedule.

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.

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.552300, -112.324390
Site: TC23048
: N of Northern Avenue
: El Mirage Road
4/4/2023
Tuesday
SB
Interval Start
Interval Start
4/4/2023 00:00
119
12:00
7
440
37
00:15
106
12:15
8
00:30
107
12:30
6
00:45
108
12:45
16
01:00
106
13:00
7
445
30
01:15
96
13:15
12
01:30
119
13:30
6
01:45
124
13:45
5
02:00
141
14:00
7
623
32
02:15
184
14:15
10
02:30
152
14:30
4
02:45
146
14:45
11
03:00
139
15:00
16
542
79
03:15
145
15:15
18
03:30
125
15:30
17
03:45
133
15:45
28
04:00
112
16:00
47
504
246
04:15
138
16:15
65
04:30
118
16:30
70
04:45
136
16:45
64
05:00
152
17:00
104
456
384
05:15
114
17:15
84
05:30
94
17:30
106
05:45
96
17:45
90
06:00
88
18:00
120
308
518
06:15
80
18:15
136
06:30
86
18:30
134
06:45
54
18:45
128
07:00
56
19:00
142
220
516
07:15
52
19:15
144
07:30
46
19:30
130
07:45
66
19:45
100
08:00
56
20:00
100
200
452
08:15
54
20:15
132
08:30
55
20:30
117
08:45
35
20:45
103
09:00
36
21:00
73
119
346
09:15
26
21:15
88
09:30
32
21:30
96
09:45
25
21:45
89
10:00
19
22:00
112
61
372
10:15
20
22:15
84
10:30
13
22:30
68
10:45
9
22:45
108
11:00
12
23:00
92
55
391
11:15
15
23:15
100
11:30
12
23:30
101
11:45
16
23:45
98
24 Hour Total
7376
00:00 - 12:00
12 Hour Count
3403
Peak Hour
06:30
Peak Volume
548
Factor
0.95
12:00 - 00:00
12 Hour Count
3973
Peak Hour
14:00
Peak Volume
623
Factor
0.85

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.552300, -112.324390
Site: TC23048
: N of Northern Avenue
: El Mirage Road
4/5/2023
Wednesday
SB
Interval Start
Interval Start
4/5/2023 00:00
108
12:00
12
417
71
00:15
96
12:15
24
00:30
96
12:30
11
00:45
117
12:45
24
01:00
108
13:00
16
472
60
01:15
106
13:15
18
01:30
139
13:30
13
01:45
119
13:45
13
02:00
130
14:00
15
640
59
02:15
174
14:15
17
02:30
189
14:30
13
02:45
147
14:45
14
03:00
136
15:00
28
596
113
03:15
154
15:15
26
03:30
152
15:30
35
03:45
154
15:45
24
04:00
163
16:00
50
595
278
04:15
146
16:15
78
04:30
142
16:30
80
04:45
144
16:45
70
05:00
160
17:00
93
522
393
05:15
142
17:15
84
05:30
120
17:30
114
05:45
100
17:45
102
06:00
90
18:00
109
333
525
06:15
86
18:15
122
06:30
81
18:30
144
06:45
76
18:45
150
07:00
66
19:00
141
245
493
07:15
71
19:15
138
07:30
51
19:30
114
07:45
57
19:45
100
08:00
64
20:00
111
203
465
08:15
44
20:15
140
08:30
52
20:30
120
08:45
43
20:45
94
09:00
54
21:00
96
157
420
09:15
44
21:15
110
09:30
30
21:30
100
09:45
29
21:45
114
10:00
18
22:00
95
76
372
10:15
16
22:15
93
10:30
24
22:30
100
10:45
18
22:45
84
11:00
8
23:00
76
42
396
11:15
16
23:15
100
11:30
13
23:30
96
11:45
5
23:45
124
24 Hour Total
7943
00:00 - 12:00
12 Hour Count
3645
Peak Hour
06:30
Peak Volume
573
Factor
0.96
12:00 - 00:00
12 Hour Count
4298
Peak Hour
14:15
Peak Volume
646
Factor
0.85

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.552300, -112.324390
Site: TC23048
: N of Northern Avenue
: El Mirage Road
4/6/2023
Thursday
SB
Interval Start
Interval Start
4/6/2023 00:00
108
12:00
7
430
35
00:15
116
12:15
9
00:30
94
12:30
7
00:45
112
12:45
12
01:00
100
13:00
10
474
33
01:15
126
13:15
3
01:30
116
13:30
12
01:45
132
13:45
8
02:00
108
14:00
8
573
33
02:15
185
14:15
8
02:30
160
14:30
7
02:45
120
14:45
10
03:00
126
15:00
12
532
75
03:15
130
15:15
17
03:30
136
15:30
28
03:45
140
15:45
18
04:00
158
16:00
45
586
243
04:15
156
16:15
56
04:30
152
16:30
70
04:45
120
16:45
72
05:00
140
17:00
70
525
356
05:15
150
17:15
90
05:30
138
17:30
104
05:45
97
17:45
92
06:00
102
18:00
103
346
520
06:15
84
18:15
142
06:30
84
18:30
138
06:45
76
18:45
137
07:00
58
19:00
150
238
503
07:15
72
19:15
125
07:30
58
19:30
106
07:45
50
19:45
122
08:00
42
20:00
116
207
436
08:15
52
20:15
102
08:30
64
20:30
106
08:45
49
20:45
112
09:00
32
21:00
102
128
406
09:15
33
21:15
104
09:30
37
21:30
96
09:45
26
21:45
104
10:00
18
22:00
78
89
364
10:15
22
22:15
96
10:30
27
22:30
100
10:45
22
22:45
90
11:00
18
23:00
93
87
395
11:15
24
23:15
103
11:30
25
23:30
95
11:45
20
23:45
104
24 Hour Total
7614
00:00 - 12:00
12 Hour Count
3399
Peak Hour
06:15
Peak Volume
567
Factor
0.95
12:00 - 00:00
12 Hour Count
4215
Peak Hour
15:45
Peak Volume
606
Factor
0.96

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.563826, -112.324498
Site: TC23048
: S of Olive Avenue
: El Mirage Road
4/4/2023
Tuesday
NB
Interval Start
Interval Start
4/4/2023 00:00
92
12:00
15
401
43
00:15
103
12:15
14
00:30
108
12:30
7
00:45
98
12:45
7
01:00
97
13:00
15
443
33
01:15
95
13:15
6
01:30
121
13:30
6
01:45
130
13:45
6
02:00
158
14:00
8
603
42
02:15
144
14:15
10
02:30
164
14:30
14
02:45
137
14:45
10
03:00
168
15:00
15
632
37
03:15
152
15:15
9
03:30
165
15:30
6
03:45
147
15:45
7
04:00
160
16:00
7
667
102
04:15
168
16:15
23
04:30
173
16:30
34
04:45
166
16:45
38
05:00
138
17:00
22
550
253
05:15
166
17:15
54
05:30
112
17:30
62
05:45
134
17:45
115
06:00
122
18:00
70
436
390
06:15
116
18:15
111
06:30
109
18:30
105
06:45
89
18:45
104
07:00
76
19:00
98
288
468
07:15
80
19:15
106
07:30
62
19:30
105
07:45
70
19:45
159
08:00
49
20:00
154
206
497
08:15
59
20:15
136
08:30
52
20:30
96
08:45
46
20:45
111
09:00
43
21:00
100
203
372
09:15
69
21:15
88
09:30
47
21:30
102
09:45
44
21:45
82
10:00
55
22:00
69
171
343
10:15
48
22:15
82
10:30
35
22:30
86
10:45
33
22:45
106
11:00
51
23:00
98
119
346
11:15
20
23:15
74
11:30
20
23:30
80
11:45
28
23:45
94
24 Hour Total
7645
00:00 - 12:00
12 Hour Count
2926
Peak Hour
07:30
Peak Volume
554
Factor
0.87
12:00 - 00:00
12 Hour Count
4719
Peak Hour
16:00
Peak Volume
667
Factor
0.96

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.563826, -112.324498
Site: TC23048
: S of Olive Avenue
: El Mirage Road
4/5/2023
Wednesday
NB
Interval Start
Interval Start
4/5/2023 00:00
87
12:00
21
398
75
00:15
102
12:15
13
00:30
117
12:30
25
00:45
92
12:45
16
01:00
98
13:00
16
492
57
01:15
108
13:15
11
01:30
138
13:30
14
01:45
148
13:45
16
02:00
134
14:00
24
651
58
02:15
153
14:15
10
02:30
186
14:30
6
02:45
178
14:45
18
03:00
155
15:00
18
580
56
03:15
138
15:15
8
03:30
145
15:30
10
03:45
142
15:45
20
04:00
162
16:00
16
618
121
04:15
146
16:15
13
04:30
162
16:30
31
04:45
148
16:45
61
05:00
190
17:00
32
636
243
05:15
169
17:15
40
05:30
144
17:30
76
05:45
133
17:45
95
06:00
129
18:00
84
427
411
06:15
108
18:15
99
06:30
98
18:30
90
06:45
92
18:45
138
07:00
84
19:00
104
304
497
07:15
87
19:15
118
07:30
59
19:30
119
07:45
74
19:45
156
08:00
68
20:00
144
253
452
08:15
64
20:15
112
08:30
57
20:30
100
08:45
64
20:45
96
09:00
52
21:00
98
205
357
09:15
56
21:15
111
09:30
41
21:30
70
09:45
56
21:45
78
10:00
30
22:00
107
141
382
10:15
45
22:15
96
10:30
38
22:30
86
10:45
28
22:45
93
11:00
24
23:00
98
73
396
11:15
20
23:15
108
11:30
16
23:30
102
11:45
13
23:45
88
24 Hour Total
7883
00:00 - 12:00
12 Hour Count
3105
Peak Hour
07:15
Peak Volume
537
Factor
0.86
12:00 - 00:00
12 Hour Count
4778
Peak Hour
14:15
Peak Volume
672
Factor
0.90

United Civil Group
2803 N. 7th Avenue
Lat, Long
24 Hour Volume, per Channel (Volume factor 0.5)
Street
Location
: 33.563826, -112.324498
Site: TC23048
: S of Olive Avenue
: El Mirage Road
4/6/2023
Thursday
NB
Interval Start
Interval Start
4/6/2023 00:00
107
12:00
17
416
42
00:15
97
12:15
7
00:30
96
12:30
14
00:45
116
12:45
4
01:00
88
13:00
25
498
51
01:15
121
13:15
6
01:30
136
13:30
10
01:45
153
13:45
10
02:00
151
14:00
10
667
40
02:15
162
14:15
10
02:30
200
14:30
13
02:45
154
14:45
7
03:00
193
15:00
6
647
31
03:15
140
15:15
4
03:30
170
15:30
13
03:45
144
15:45
8
04:00
144
16:00
12
611
118
04:15
164
16:15
24
04:30
148
16:30
40
04:45
155
16:45
42
05:00
156
17:00
30
590
244
05:15
170
17:15
46
05:30
128
17:30
61
05:45
136
17:45
107
06:00
112
18:00
84
386
455
06:15
92
18:15
120
06:30
76
18:30
115
06:45
106
18:45
136
07:00
90
19:00
135
325
578
07:15
85
19:15
141
07:30
79
19:30
117
07:45
71
19:45
185
08:00
64
20:00
156
252
532
08:15
76
20:15
122
08:30
52
20:30
146
08:45
60
20:45
108
09:00
52
21:00
83
193
365
09:15
54
21:15
100
09:30
45
21:30
82
09:45
42
21:45
100
10:00
40
22:00
102
154
349
10:15
46
22:15
62
10:30
40
22:30
97
10:45
28
22:45
88
11:00
34
23:00
80
95
393
11:15
24
23:15
104
11:30
23
23:30
107
11:45
14
23:45
102
24 Hour Total
8032
00:00 - 12:00
12 Hour Count
3198
Peak Hour
07:45
Peak Volume
609
Factor
0.82
12:00 - 00:00
12 Hour Count
4834
Peak Hour
14:15
Peak Volume
709
Factor
0.89

Development Services
Engineering Division
10000 N. El Mirage Road, El Mirage, AZ 85335
623-972-8116; Fax 623-876-4605; TDD 623-933-3258
www.elmirageaz.gov

SWPPP Guidance Document
(Storm Water Pollution Prevention Plan)

Development/Project Name:
______________________________________________

Parcel Number(s):

______________________________________________

Address/Location:

______________________________________________

Net Area (Acres):

______________________________________________

Disturbed Area (Acres):

______________________________________________

The City of El Mirage requires all development that disturbs one acre or more to submit the
required Storm Water Pollution Prevention Plan (SWPPP), including the Notice of Intent (NOI).
The owner/developer is still required to submit all required documents to the Arizona
Department of Environmental Quality (ADEQ) as required by law. The site
https://azdeq.gov/node/1143 is designed to provide you with a quick and easy way to file a
Notice of Intent (NOI) online for permit coverage, apply for a waiver, or file a Notice of
Termination (NOT) to terminate coverage under the AZPDES Construction General Permit,
AZG2020-001 or call ADEQ at (844) 827-4768 for assistance.

In addition, the SWPPP shall include all requirements of Maricopa County Rule 310 and all
requirements of the El Mirage City Code as it pertains to storm water. Copies of all
requirements, forms and guidance are available in the latest version of the Drainage Design
Manual for Maricopa County Volume III Erosion Control available at the Flood Control District,
2801 West Durango, Phoenix, Arizona 85009, Phone No (602) 506-1501.

This checklist serves to minimize redline comments on the check prints and to maintain
consistency among plan reviewers on plans for Storm Water and Dust Control Management.
Plan approval, issuing permits, and certain grading clearances depend on compliance with the
comments made on the check prints and this checklist. The engineer of record shall satisfy
themselves of the completeness and accuracy of the design. This review shall serve as a courtesy
review only. The Owner is ultimately responsible to ensure that all of the requirements outlined
under AZPDES are followed.

Please return this checklist and the check prints with your next submittal. Discussion of
redline comments on plans or this checklist should be directed to the City Plan Reviewer.

GENERAL REQUIREMENTS:


Sheets to be 24" X 36"; submit two sets of plans.

Separate Storm Water Management Plans shall be submitted with grading and drainage
plan at time of First review.

Cover sheet is required on plans of more than two sheets.

Site Information – to be included on the First/Cover sheet:
 Project title block with name and address of project.
 Legal description of project location.
 Total site area (acres).
 Total area of disturbance (acres).
 Vicinity map with north arrow.
 Index of plan sheets if more than one plan sheet.
 Owner's/Developer’s name, address, and telephone number.
 Engineer’s name, address, and telephone number.
 Contractor’s name, address and telephone number. If contractor is not known,
leave this area blank for future completion.

Add Storm Water Pollution Prevention (SWPPP) Notes to plan. Notes can be found here
(see City Detail EM-101-9).

SWPPP Certification – The site owner (operator) or his authorized representative shall
sign and certify the plan. In signing, the person certifies that the information is true and
assumes liability for the plan. The registrant preparing the plan may be liable to the site
operator/owner. However, ultimate responsibility – for purposes of violations, and fines
shall lie with the site operator/owner and site contractor.

I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gathered and evaluated the information submitted. Based on my inquiry of the operator
or operators who manage this system, or those operators directly responsible for gathering
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations. In addition, I certify
that the permittee will comply with all terms and conditions stipulated in General Permit No.
AZG2020-001 issued by the Director.

_______________________________

_____________________________
Printed Name

Job Title

_______________________________

_____________________________
Signature

Company Name


Contractor Certification – ADEQ also requires that the contractors and subcontractors
responsible for implementing measures in the SWPPP be listed in the plan with the
measures for which they are responsible, and that they sign a certification statement that
they understand the permit requirements as reflected on the SWPPP .

I (Printed Individual’s Name) acting as (Job Title) for the (contractor/subcontractor’s name), an
authorized representative, having reviewed this Storm Water Management Plan (SWPPP) and all
of the relevant documents, do hereby certify that I understand all components of this plan and
will perform all required inspections and maintenance activities as required; and that I will
maintain all necessary and required records at the job site and up to date.

_______________________________

Signature


Provide a legend identifying grades, symbols, and lines, etc.

Maricopa County Rule 310 permit #_____

ADEQ tracking number AZCON_____

All sheets shall have the qualified Arizona registrant’s seal and original signature prior to
plan submittal.

North arrow and bar scale

The following is a checklist of information that is to be included in the SWPPP. Additional
information regarding the data to be included in the SWPPP is provided in the Construction
General Permit issued by ADEQ. The Construction General Permit can be downloaded from:
https://static.azdeq.gov/permits/azpdes/cgp_permit.pdf


Existing Conditions – show existing contours, floodplain limits and any stormwater
structures on or adjacent to the project site.

Construction Activity Description - the SWPPP must contain a description of the purpose
or goal(s) of the construction project (e.g. a single-family residential, commercial
development, etc.). Additionally, the SWPPP must list all soil-disturbing activities
necessary to complete the project (e.g. clearing, excavating, and stockpiling).

Final Slope Grades - Location and steepness of slopes after grading.

Final Drainage Patterns – Drainage patterns of the site after major grading activities and
the location of the points where storm water will discharge from the site.

Disturbed Areas - Location and areas of soil disturbing activities or the total area of the
site where soil will be disturbed. (This must be identified on the map and area called-out).

Undisturbed Areas – The SWPPP shall reflect all areas designated as being undisturbed.
This would include Natural open space, jurisdictional washes (Per section 404 of the
CWA), etc. All designated areas must be delineated/ and fenced-off in the field.

Offsite Flows – Show location of offsite flows including quantities. If offsite flows are
being rerouted through the site, a note should be added to reflect the no disturbance zone.

Erosion and Sediment Controls – The SWPPP must describe the erosion and sediment
controls to be used during construction. Such controls include stabilization measures for
disturbed areas and structural controls to divert runoff and remove sediments. Selected
controls must be per the Best Management Practices (BMP) outlined in the latest Drainage
Design Manual for Maricopa County Volume III Erosion Control (ECM).


Best Management Practices (BMPs) – Structural devices or non-structural practices that
are designated to prevent pollutants from entering into storm water flows, to direct flows of
storm water or to treat polluted storm water flows. The emphasis should be placed on
eliminating the source of pollutant(s). All selected BMPs details must be shown on the plan
sheets or included as part of the Storm Water Management Plan.

Sediment Basins - Show location of all temporary or permanent sediment basins to be
installed. Temporary basins may be substituted for permanent basins during grading phase
only. These basins must provide at least 3,600 cubic feet of storage for every acre of
contributing land.

Other Controls – The SWPPP must also include controls that address other potential
sources of storm water pollution, such as:
 Construction site waste material storage.
 Preventing offsite tracking of sediments and generation of dust.
 Hazardous material storage (e.g. fuel, equipment oil, etc.)
 Equipment maintenance/ parking areas.

Post-Construction – The SWPPP must include a description of storm water management
controls that will be installed to control pollutants after construction completion.

Future Activities – The SWPPP shall address all grading activities to be performed on any
site that is part of the “greater common plan or development” (e.g. construction of
individual lot(s) within a subdivision).

Location of Controls – the BMPs selected for the site must be shown on the SWPPP,
including the location of each measure used for erosion and sediment control, storm water
management, and other pollution controls.

Inspection and Maintenance Plan – The SWPPP must contain a description of the
procedures that will be used to maintain the BMPs on site. The plan shall include an
inspection and maintenance checklist for each control measure. The checklist must address
specific items to inspect for and evaluation criteria.

Description of Controls – The SWPPP shall include a list of the BMPs to be used at the
site, describing each control and its purpose. Many of the BMPs selected from the ECM
already contain the descriptions and purpose.

Sequence of Major Activities – The SWPPP shall contain a sequence of major activities.
The sequence should address the installation of all controls, earth disturbing activities, and
stabilization activities, and the maintenance required for the controls. The sequence should
indicate, clearly, the order in which these activities will take place along with a proposed
timeline associated with each activity.

In developing a sequence of major activities, the following general principals should be
followed:
1. Install down slope and side slope perimeter controls before the land disturbing activity
occurs.
2. Cover or stabilize disturbed areas as soon as possible. (Under ADEQ’s general permit,
disturbed areas of the construction site that will not be re-disturbed must be stabilized
within 14 days of the most recent land disturbance).
3. Time construction activities to limit impact from seasonal climate changes or weather
events.
4. Delay construction of infiltration measures until the end of the construction project, if
possible. Otherwise, provide proper Storm Water Management Controls to eliminate
potential sources of pollution.
5. Do not remove temporary perimeter controls until after all upstream areas are finally

stabilized.


Additional Comments - The following are additional comments specific to this site:
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________

01-01-23

DESCRIPTION
CRITERIA
AVERAGE DAY DEMAND - SINGLE FAMILY RESIDENTIAL
Gallons per capita per day (gpcd)(1)
117
Density (people per dwelling unit)(2)
3.35
AVERAGE DAY DEMAND - MULTI-FAMILY/COMMERCIAL/INDUSTRIAL
Land Use Category(3)
Varies
PEAKING FACTORS
Maximum Day / Average Day
1.7
Peak Hour / Maximum Day
1.7
Peak Hour / Average Day
2.9
VELOCITY CRITERIA
Maximum Day Condition
Max Velocity < 5 fps
Peak Hour Condition
Max Velocity ≤ 7 fps
Max Day Plus Fire Flow Condition
Max Velocity < 10 fps
HEAD LOSS CRITERIA
Maximum Day Condition
2 to 7 feet per 1,000 feet of pipe
Peak Hour Condition
< 10 feet per 1,000 feet of pipe
PRESSURE CRITERIA
Max Day Plus Fire Flow Condition
Min Residual Pressure of 20 psi
Peak Hour Condition
Min System Pressure of 40 psi
FIRE DEMAND CRITERIA
Single Family Residential
1,500 gpm at 2 hours
All Other Land Uses
3,500 gpm for 4 hours
NOTES:
(1) Average per capita water use per 2012 Water and Wastewater Master Plan provided by Wilson Engineers
(2) Persons per household per US Census Bureau (2020)
(3) Use latest version of City of Phoenix Design Standards Manual for Water and Wastewater Systems.
Other values may be used with prior approval from the Engineering Division
WATER SYSTEM DESIGN CRITERIA

DESCRIPTION
CRITERIA
AVERAGE DAY DEMAND - SINGLE FAMILY RESIDENTIAL
Gallons per capita per day (gpcd)(1)
58.5
Density (people per dwelling unit)(2)
3.35
AVERAGE DAY DEMAND - MULTI-FAMILY/COMMERCIAL/INDUSTRIAL
Land Use Category(3)
Varies
PEAKING FACTORS
Dry Weather Peaking Factors (Applied to Average Flows)
Per AAC R18-9-E301.D (see next page)
Wet Weather Peaking Factors (Applied to Peak Flows)
1.17
VELOCITY CRITERIA
Gravity Mains
2 fps ≤ Velocity ≤ 8 fps
Force Mains
3 fps ≤ Velocity ≤ 7 fps
FLOW DEPTH CRITERIA (d/D) FOR DRY WEATHER PEAK HOUR FLOWS
d/D for new sewer with diameter less than 10 inches
0.50
d/D for new sewer with diameter 12 inches and above
0.75 (AAC R18-9-E301.D.e.iii)
FLOW DEPTH CRITERIA (d/D) FOR WET WEATHER PEAK HOUR FLOWS
d/D for designing new sewer pipe
< 0.90
d/D for evaluating existing pipe in developed areas
< 1.00
HEAD LOSS CRITERIA
Gravity pipe
Manning's n=0.013
Pressure pipe
Hazen Williams' C=120
MANHOLES
When smaller pipe joins larger pipe
Match Crowns
Invert drop through manhole
0.20 feet
NOTES:
(1) Average per capita water use per 2012 Water and Wastewater Master Plan provided by Wilson Engineers
(2) Persons per household per US Census Bureau (2020)
(3) Use latest version of City of Phoenix Design Standards Manual for Water and Wastewater Systems. Other
values may be used with prior approval from the Engineering Division
WASTEWATER SYSTEM DESIGN CRITERIA

Upstream Population
Dry Weather Peaking Factor
100
3.62
200
3.14
300
2.90
400
2.74
500
2.64
600
2.56
700
2.50
800
2.46
900
2.42
1,000
2.38
1,001 to 10,000
PF = (6.330 x p-0.231) + 1.094
10,001 to 100,000
PF = (6.177 x p-0.233) + 1.128
More than 100,000
PF = (4.500 x p-0.174) + 0.945
PF = Dry Weather Peaking Factor
p = Upstream Population
AAC R18-9-E301.D