HomeMy WebLinkAboutSW5190902_Supplement-EZ Form_20191114SUPPLEMENT-EZ COVER PAGE
FORMS LOADED
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PROJECTINFORMATION
1 Project Name Captive Aire Systems Expansion
2
Project Area aC
6.85
3
Coastal Wetland Area ac
0
4
_
Surface Water Area ac
0
5
1 Is this project High or Low Density?
High
6
1 Does this project use an off -site SCNI?
No
COMPLIAN_C_E WITH 02H .1003(4)
7 Width of vegetated setbacks provided feet �T 10
8 1 Will the vegetated setback remain vegetated? Yes
9 Is BUA other that as listed in .1 003(4)(c-d) out of the setback? I No _ E
10 I Is streambank stabilization proposed on this proiect? No
NUMBER AND TYPE OF SCMs: _
11 Infiltration System 0
12
Bioretention Call
0
13
Wet Pond
0
14
Stormwater Wetland
1
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 ITreatment
Swale
0
22
Dry Pond
0
23
StormFilter
0
24
Silva Cell
0
25
Ba filter
0
26
Filterra
0
FORMS LOADED
DESIGNER CERTIFICATION
27 Name and Title: J, Michael Stocks, PE
28
Organization:
Stocks Engineering
29
Street address:
801 E Washington St.
30
City, State, zip:
Nashville, NO 27856
31
Phone numbers :
252-459-8196
32
1 Email:
mstocks@stocksengineering.com
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 bast 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.
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DRAINAGE AREAS
1
Is this a high density project?
Yes
2
If so, number of drainage areaslSCMs
1
3
Is 9111parl. of this project subject to previous rule
versions?
No
FORMS LOADED
_DRAINAGE AREA INFORMATION
Entire site
1
4
Tye of SCM
Wetland J��
Welland
5
Total BUA in project (sq ft
123710 sf
123710 sf
6
New BUA on subdivided lots (subject to permitting)
(sq ft
123710 sf
123710 sf
7permitting)
New BUA outside of subdivided lots (subject to
s
sf
sf
8
Mile - total area (sq ft
sf
1I sf
9
Offsite BUA (sq ft
sf
sf
10
Breakdown of new BUA outside subdivided lots:
T
Parking (sq ft
51530 sf
51530 sf
- Sidewalk (sq ft
180 sf
� 180 sf
Poof (sq ft
72000 sf
N 72000 sf
Roadway s ft
sf
sf
- Future (sq ft
_
sf
sf
- Other, please specify in the comment box
below(sq.it
sf
sf
11
New infiltrating permeable pavement on
subdivided lots (sq ft
sf
_
sf
12
—F-
New infiltrating permeable pavement outside of
subdivided lots (sq ft
sf
sf
13permitting)
Exisiing BUA that will remain (not subject to
(sq ft
70132 sf
sf
14
Existing BUA that Is already permitted (sq ft
_
sf
sf
15
Existing BUA that will be removed (sq fl
sf
sf
16
Percent BUA
65%
64%
17
Design storm inches
1 in
1 in
18
Design volume of SCM cu ft
12019 of
12019 cf
i9 _ Calculation method for design volume Simple
ADDITIONAL INFORMATION
_ Simple
20
Please use this space to provide any additional information about the
drainage area(s):
STORMWATER WETLAND
1
Drainage area number
1
2 Design volume of SCM (cu it)
GENERAL MDC FROM 02H .1050
3 Is the SCM sized to treat the SW from all surfaces at build -out?
12019 cf
Yes
4
Is the SCM located away from contaminated soils?
Yes
5
What are the side slopes of the SCM (HAO?
:1
6
Does the SCM have retaining walls, gabion walls or other engineered side
slopes?
No
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?1
Pump (preferred)
10
If applicable, will the SCM be cleaned out after construction?
Yes
11
Does the maintenance access comply with General MDC (8)?
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)?
Yes
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
CTnRMWATFR
Was the SCM designed by an NC licensed professional?
WFTI atilt MnC FRnM 02H _1054
Yes
18
Are the inlet(s) and outet located in a manner that avoids short-circuiting?
Yes
19
Are berms or baffles provided to improve the flow path?
Yes
20
Does the orifice drawdown from below the top surface of the permanent pool?
No
21
Does the wetland minimize impacts to the receiving channel from the 1-yr, 24-hr
storm?
Yes
22 1
Is a trash rack or other device provided to protect the outlet system?
Yes
lElevatlons
23
24
25
26
27
28
29
Elevation, peak attenuation above temporary pool (if applicable) (fmsi)
439.25
Elevation, temporary pool (lop of the temporary Inundation zone) (fmsl)
439.25
Elevation, permanent pool (top of the shallow water zone) (fmsl)
438.00
Elevation, bottom of shallow water zone (fmsl)
437.50
Elevation, bottom of forebay deep pool all deepest point (at forebay entrance)
(fmsl)
435.00
Elevation, bottom of forebay deep pool at shallowest point (al forebay exit) (fmsl)
435.50
Elevation, bottom of non-forebay deep pool at deepest point (fmsl)
435.00
30
Area, total surface area of the SW wetland at temporary pool elev. (sq It)
11,071.00
31
Area, temporary inundation zone at temporary pool elev. (sq ft)
3,546.00
32
Area, shallow water zone at temporary pool elov. (sq ft)
4,448.00
33
Area, forebay at femparary pool elev. (sq ft
1,524.00
34
Area, non-forebay deep pool at temporary pool elev .(sq ft
1.553.00
35
Percent area provided, temporary inundation zone (should be 30-45%
32%
36
Percent area provided, shallow water zone should be 35-45%
4G%
37
Percent area provided, deep pool (forebay) should be 10-15%
14%
38
1 Percent area provided, deep pool non-foteba should be 5-15%
14%
Depths and outfet
39
40
41
45
46
47
48
Peak attenuation depth above temporary inundation zone (inches)
15 in
Temporary inundation zone depth temporary pool 10 permanent pool inches
15 in
Shallow water zone depth(permanent pool 10 bottom of wetland (inches)
6 in
Depth, forebay at entrance (permanent pool to bottom offorebay entrance)
inches
36 In
Depth, roiebay at exit (permanent pool to bottom of forebay exit) ((inches)
6 in
Depth, non-forebay dee oats armament pool to deep oo] bottom inches
36 in
If there is an orifice, diameter inches
2 in
If there is a weir, weir height (inches)
in
If there is a weir, weir length inches
in
Drawdown time for the temporary pool (days)
2.3
Soft and Plants
49 Soil amendment depth (inches)
50 Has a soil amendment specification been provided? No
51 Has a landscaping plan that meets SW Wetland MDC (12) been provided? Yes
52 Number of plants per 200 square feet (#) in the shallow water zone:
Does the temporary inundation zone planting comply with SW Welland MDC
53 (14)? Yes
54 Are the dam structure and temporary fill slopes planted in non -clumping turfgrass? No
55 Will catlaiis be planted fn the wetland? No
ADDITIONAL INFORMATION
Please use ([its space to provide any additional information about the stormwater
56 welland(s):
Wetland 1 2:05 PM 11/14/2019