SW6201101_Military Working Dog SuppEZ_20201130

SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
PROJECT
INFORMATION
Project Name MWD
Project Area (ac) 6.5
Coastal Wetland Area (ac) 0
Surface Water Area (ac) 0
1
2
3
4
5
Is this project High or Low Density?
High
F
Does this Droiect use an off -site SCM?
No
COMPLIANCE WITH 02 03(4)
7
Width of vegetated setbacks provided (feet)
8
Will the vegetated setback remain vegetated?
9
Is BUA other that as listed in .1003(4)(c-d) out of the setback?
10
Is streambank stabilization proposed on this project?
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
Name and Title:
Dan Saltsman, P.E., Project Manager
28
Organization:
Stantec Consulting Services
29
Street address:
801 Jones Franklin Rd, ste. 300
30
City, State, Zip:
Raleigh, NC 27606
31
Phone number(s):
919-532-2331
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.
Designe
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111612020
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
DRAINAGE AREA INFORMATION
Entire Site
1
4
Type of SCM
NA
INFILTRATION
BASIN
5
Total BUA in project (sq ft)
81862 sf
91731 sf
6
New BUA on subdivided lots (subject to
permitting) (sq ft)
7
New BUA outside of subdivided lots (subject to
permitting) (sf)
61544 sf
44391 sf
8
Offsite - total area (sq ft)
96740 sf
9
Offsite BUA (sq ft)
44075 sf
10
Breakdown of new BUA outside subdivided lots:
Parking (sq ft)
7035 sf
7035 sf
Sidewalk (sq ft)
4061 sf
4061 sf
Roof (sq ft)
16700 sf
16700 sf
Roadway (sq ft)
33748 sf
16595 sf
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)
20318 sf
3265 sf
14
Existing BUA that is already permitted (sq ft)
15
Existing BUA that will be removed (sq ft)
12267 sf
3750 sf
16
Percent BUA
33%
43%
17
Design storm (inches)
1 in
1 in
18
Design volume of SCM (cu ft)
8187 cf
7796 cf
19
Calculation method for design volume
SIMPLE
SIMPLE
ADDITIONAL INFORMATION
20
Please use this space to provide any additional information about the
drainage area(s):
The entire site BUA is based on the entire Limit of Disturbance (LOD) due to
being located on a military installation, no lot lines or parcels.
DRAINAGE AREA INFORMATION
Entire Site
1
4
Type of SCM
N/A
5
Total BUA from project (sq ft
6
1995 rules
SL 2006-246
2008 rules
2017 rules
7permitting)
New BUA on subdivided lots (subject to
s ft
1995 rules
SL 2006-246
2008 rules
2017 rules
8
New BUA outside of subdivided lots (subject
topermitting) sf
1995 rules
SL 2006-246
2008 rules
2017 rules
9
Offsite - total area (sq ft
1995 rules
SL 2006-246

2008 rules
2017 rules
10
Offsite BUA (sq ft)
1995 rules
SL 2006-246
2008 rules
2017 rules
11
Design storm (inches)
1995 rules
SL 2006-246
2008 rules
2017 rules
Breakdown of new BUA:
Parking (sq ft)
Sidewalk (sq ft)
Roof (sq ft)
Roadway (sq ft)
Future (sq ft)
Other, please specify in the comment box
below (sq ft)
12
13
New infiltrating permeable pavement on
subdivided lots (sq ft)
14
New infiltrating permeable pavement outside of
subdivided lots (sq ft)
15
Exisitng BUA that will remain (not subject to
permitting) (sq ft)
16
Existing BUA that is already permitted (sq ft)
17
Existing BUA that will be removed (sq ft)
18
Percent BUA
19
1 Design volume of SCM cu ft
20
lCalculation method for design volume
ADDITIONAL
INFORMATION
21
Please use this space to provide any additional
information about the drainage area(s):

INFILTRATION SYSTEM
1 1Drainage area number 1
2 IDesign volume of SCM (cu ft) 5180 cf
GENERAL MDC FROM 02H A050
3 Is the SCM sized to treat the SW from all surfaces at build -out? 49
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? No
7
jAre 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?
11
Does the maintenance access comply with General MDC (8)?
Yes
12
Does the drainage easement comply with General MDC (9)?
13
If the SCM is on a single family lot, does (will?) the plat comply with General MDC
(10)?
14
1 Is there an O&M Agreement that complies with General MDC (11)?
Is there an O&M Plan that complies with General MDC (12)?
M
Doesthe SCM follow the device specific MDC?
Yes
Was the SCM designed by an NC licensed professional?
Yes
1 19 IAre terraces or baffles provided? No 1
Data
21
Was the soil investigated in the footprint and at the elevation of the infiltration system?
Yes
22
SHWT elevation (fmsl)
253.60
23
Depth to SHWT per soils report (in)
95.00
24
Ground elevation at boring in soils report (fmsl)
261.50
25
Is a detailed hydrogeologic study attached if the separation is between 1 and 2 feet?
26
Soil infiltration rate (in/hr)
0.74
27
Factor of safety (FS) (2 is recommended):
2.00
IElevatlons
29
Bottom elevation (fmsl)
257 ft
30
ISLorage elevation (fmsl)
258.16 ft
31
Bypass elevation (fmsl)
258 ft
t-or ttasms vmy
32 1 Bottom surface area, ft2: 8650 ft
33 Istorage elevation surface area (ft) 10075. ft
For Trenches Only
39 IStone type, if applicable
40 Stone void ratio (%)
41 Is stone free of fines?
42 Is the stone wrapped in geotextile fabric?
43 Has at least one infiltration port been provided?
Volumes/Drawdown
44 Desian volume of SCM (cu ft) 8650 cf
IONAL INFORMATION
Please use this space to provide any
46
rs
Infiltration 4 3:30 PM 11/6/2020