SW6190503_Supplemental_Stormwater_Form_2019-07-23_7/25/2019

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT INFORMATION
1
Project Name
Kinder Care Learning Center, Spout Springs
2
Project Area (ac)
1.423
3
Coastal Wetland Area (ac)
0
4
Surface Water Area (ac)
0
5
Is this project High or Low Density?
High
6
Does this project use an off -site SCM?
No
COMPLIANCE WITH 02H .1003(4)
7
Width of vegetated setbacks provided (feet)77-
0
8
Will the vegetated setback remain vegetated?
I No
9
Is BUA other that as listed in .1003(4)(c-d) out of the setback?
I No
10
Is streambank stabilization proposed on this project?
I No
NUMBER AND TYPE OF SCMS:
11
Infiltration System
1
12
Bioretention Cell
0
13
Wet Pond
0
14
Stormwater Wetland
0
15
Permeable Pavement
0
16
Sand Filter
0
17
Rainwater Harvesting RWH)
0
18
Green Roof
0
19
Level Spreader -Filter Strip (LS-FS)
0
20
Disconnected Impervious Surface (DIS)
0
21
Treatment Swale
0
22
Dry Pond
0
23
StormFilter
0
24
Silva Cell
0
25
Bayfilter
0
26
Filterra
0
FORMS LOADED
DESIGNER CERTIFICATION
27
1 Name and Title:
Stuart Anderson, P.E. NC Red. #040659
28
Organization:
Interplan, LLC
29
Street address:
604 Courtland Street, Suite 100
30
City, State, Zip:
Orlando, FL 32804
31
Phone number(s):
407 645-5008
32
Email:
[e-mail]
Certification Statement:
I certify, under penalty of law that this Supplement-EZ form and all supporting information were prepared under my direction or
supervision; that the information provided in the form is, to the best of my knowledge and belief, true, accurate, and complete; and that
the engineering plans, specifications, operation and maintenance agreements and other supporting information are consistent with the
information provided here.
CAR
0, tssb*...
-- .'1. _
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SEAL
040659
IOUILI
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7�ZA'
Signature of Designer
Date

DRAINAGE AREAS
1
Is this a high density project?
Yes
2
If so, number of drainage areas/SCMs
1
3
Is all/part of this project subject to previous rule
versions?
No
FORMS LOADED
iDRAINAGE AREA INFORMATION
c 4 Type of SCM
Entire Site
1
Infiltration Basin
5
Total BUA in project (sq ft)
38404 sf
j
6
New BUA on subdivided lots (subject to permitting)
(sq ft)
F
7
New BUA outside of subdivided lots (subject to
permitting) (sf)
38404 sf
8
Offsite - total area (sq ft)
9
Offsite BUA (sq ft)
i
10
Breakdown of new BUA outside subdivided lots:
- Parking (sq ft)
22362 sf
j
- Sidewalk (sq ft)
4043 sf
- Roof (sq ft)
11999 sf
- Roadway (sq ft)
- Future (sq ft)
- Other, please specify in the comment box below
(sq ft)
11
New infiltrating permeable pavement on subdivided
lots (sq ft)
12
New infiltrating permeable pavement outside of
subdivided lots (sq ft)
13
Exisitng BUA that will remain (not subject to
permitting) (sq ft)
14
Existing BUA that is already permitted (sq ft)
15
Existing BUA that will be removed (sq ft)
16
Percent BUA
62%
17
Design storm (inches)
1 in
18
Design volume of SCM (cu ft)
3183 cf
19
Calculation method for design volume
Rational Method
ADDITIONAL
INFORMATION
20
Please use this space to provide any additional information about the
drainage area(s):

INFILTRATION SYSTEM
1 Drainage area number 1
2
IDesign volume of SCM (cu ft)
MDC FROM 02H .1050
1 Is the SCM sized to treat the SW from all surfaces at build -out?
GENERAL
yes
3
4
Is the SCM located away from contaminated soils?
Yes
5
What are the side slopes of the SCM (H:V)?
3:1
6
Does the SCM have retaining walls, gabion walls or other engineered side slopes?
Yes
7
Are the inlets, outlets, and receiving stream protected from erosion (10-year storm)?
Yes
8
Is there an overflow or bypass for inflow volume in excess of the design volume?
Yes
9
What is the method for dewatering the SCM for maintenance?
Pump (preferred)
10
If applicable, will the SCM be cleaned out after construction?
Yes
11
1 uoes me maintenance access comply witn ueneral Muc (aye
Yes
12
Does the drainage easement comply with General MDC (9)?
Yes
13
If the SCM is on a single family lot, does (will?) the plat comply with General MDC
(10)?
No
14
Is there an O&M Agreement that complies with General MDC (11)?
Yes
15
Is there an O&M Plan that complies with General MDC (12)?
Yes
16
Does the SCM follow the device specific MDC?
Yes
17 Was the SCM designed by an NC licensed professional? Yes
INFILTRATION SYSTEM Mnr FROM n2H 1n51
18
Proposed slope of the subgrade surface (%)
0%
19
Are terraces or baffles provided?
No
20
Type of pretreatment:
For -bay
I soils Data
21
Was the soil investigated in the footprint and at the elevation of the infiltration system?
Yes
22
SHWT elevation (fmsl)
<317ft
23
Depth to SHWT per soils report (in)
>15ft
24
Ground elevation at boring in soils report (fmsl)
322.00
25
Is a detailed hydrogeologic study attached if the separation is between 1 and 2 feet?
Yes
26
iSoil infiltration rate (inthr)
6.00
27
1 Factor of safety (FS) (2 is recommended):
2.00
Irrevanons
29
Bottom elevation (fmsl)
330 ft
30
Storage elevation (fTisl)
331. ft
31
Bypass elevation (fmsl)
335 ft
For Basins unly
32 Bottom surface area, ft2: 1867 ft
33 Storage elevation surface area (ft2) 2148. ft
For Trenches Only
34 Length (ft)
35 lWidth (ft)
39 Stone type, if applicable
40 Stone void ratio (%)
41 Is stone free of fines?
42 Is the stone wrapped in geotextile fabric?
43 1 Has at least one infiltration port been provided?
ITIONAL INFORMATION
Please use this space to provide any additional information about the infiltration
46
Infiltration 3 11:33 AM 7/23/2019