SW6240101_Supplement-EZ Form_20240724

SUPPLEMENT-EZ COVER PAGE
;RMS LOADED
PROJECT INFORMATION 1 Project Name j Freedom Acres
2 'Project Area(ac) 64.64
3 Coastal Wetland Area(ac) 0
4 Surface Water Area(ac) 6.19
% 5 Is this project High or Low Density? ; Low
I6 Does this project use an off-site SCM? No
COMPLIANCE WITH 02H.1003(4)
7 jWidth of vegetated setbacks provided(feet) ` 30'MIN _ _ _,4
8 'Will the vegetated setback remain vegetated? ! Yes
9 If BUA is proposed in the setback,does it meet NCAC 02H 1003(4)(c-d)? Yes
E 10 Is streambank stabilization proposed on this project? No
NUMBER AND TYPE OF SCMS:
1 11 Infiltration System 0
12 Bioretention Cell i 0
6 13 Wet Pond _ 0
14 Stormwater WetlandF 0
15 Permeable Pavement 0
16 Sand Filter W — — 0
17 Rainwater Harvesting(RH) s 0
18 Green Roof 0
19 Level Spreader-Filter Strip jLS-FS) 0
20 Disconnected Impervious Surface PIS) 0
21 Treatment Swale j 0
22 Dry Pond j 0
23 StormFilter 0
24 Silva Cell
0
25 4Bayf lter r
26 iFRerra_ 0
-DESIGNER CERTIFICATION
a..
1 27 Name and Title: Fleet Temple,PE
28 Or anization: Fleet Temple Engineering, PLLC
29 Street address: 5245 Red Hill Church Rd.
30 City,State,Zip: Coats,NC 27521
31 Phone numbers : --
- O 910-658-2446
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
Designer
r/
gnature of Designer
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Seal 11 4 Date

DRAINAGE AREAS
1 Is this a high density project? _ No ` -
2 If so,number of drainage areas/SCMs 0
3 Does this • oject have low density areas? Yes •
..ter
Q If so,number of low density drainage areas 2
Is all/part of this project subject to previous rule '
5 versions? . No ____
FORMS LOADED
DRAINAGE AREA INFORMATION Entire Site LD 1 LD 2
t.
4 'Type of SCM Walkers Creek DA Bear Branch DA
5 Total drainage area(sq ft) 3085194 1615473 1200319
6 Onsite drainage area(sq ft) 3085194 1615473 1200319
-7 Offsite drainage area(sq ft) 0 0 0
8 ;Total BUA in project(sgft) _ 674236 sf t 386776 sf 287460 sf
'New BUA on subdivided lots(subject to permitting)'
9 I 524500 sf 316800 sf 207700 sf
New BUA not on subdivided lots(subject to
10_-;permitting)(sf) 149736 sf 69976 sf 79760 sf
11 Offsite BUA(sq ft) _ sf
_,
12 Breakdown of new BUA not on subdivided lots:_ ~
-Parki ft
-Sidewalk(sq ft)
-
-Roof(sgft)
-Roadway(sq ft) T 149736 sf 1-
69976 sf 79760sf
-Future ft _-_--.
-Other,please specify in the comment box t
below sq�_ (
t New infiltrating permeable pavement on t
13 subdivided lots(sq__ft)
New infiltrating permeable pavement not on
14 subdivided lots(sq ft) sf
Existing BUA that will remain(not subject to
15 permitting)(sgftj j
_�
16 Existing BUA that is airea y permitted (sq ft)
17 lExisting BUA that will be removed(sq ft)
18 I Percent BUA 24% i 24% 24%
19 !Design storm(inches)
20 1Design_volume of SCMJcu ft)
21 Calculation method for design volume
110NAL INFORMATION i
Please use this space to provide any additional information about the 3
22 ;drainage area(s):
t

LOW DENSITY
1`.._ NRE•UlREMEN'rScOR LOW DENS!TYPR61ECt5-rROfV1021-1 1003 ,.
1 Is project below density thresholds set forth in the applicable stormwater rule? I Yes
2 Does project maximize dispersed flow and minimize channelrzation of flow? Yes
3 Has the use of piping been minimized per.1003(2)(c)? _ _ Yes
4 ;Side slopes of the vegetated conveyances(H:V) 31E
5 Maximum velocity in the vegetated conveyances during the 10-year storm? 5
6 ;Are curb outlet swales proposed? No
7 i Maximum longitudinal slope of curb outlet swale(s)(%)
8 Bottom width of curb outlet swale(s)(feet)
9 1 Maximum side slope of curb outletswale(s)(H:V) I ,
10 I Minimum length of curb outlet swale(s)(feet)
11 Are treatment swales used instead of curb outlet swales? Yes
12 Is stormwater released at the edge of the setback as dispersed flow? Yes i
13 Have stormwater outlets been designed to prevent downslope erosion? Yes
14 -Are variations to rule 1003 proposed'? 4o
;' ONAL INFORMATION _ _
15 Please use this space to provide any additional information about this low density project
i i
- .tea
SWAIM:VEGETATED SWALESiROADBICE DITCHES
Drainage Pervious
Swale 8UA Q Slope V.,„. V.‘„,,,, Flow depth
# Area (ac) area G (cfs) (,b) (fps) (his) E�?
1 300 068 233 0.50 1080 455 5.00 350 110
2 2 10 0 47 1.63 0.50 7.56 4.55 5.00 3.20 1 00 I
3 2 90 065 225 0.50 10.44 0 93 500 310 120 I
4 1 20 0.27 0 93 0.50 4.32 0 93 5.00 2 50 080
5 0.20 0.05 0.16 0.50 0.72 2 67 5 00 2 30 0.40
6 0.80 0 18 0.62 0 50 2.88 2.67 5.00 3 30 0.60
7 0.30 0-07 0.23 0 50 1 08 1 00 5 00 1 80 0.50
8 1.70 038 132 050 6.12 1.00 500 280 090
9 070 016 0.54 050 252 0.59 500 180 070
10 460 1.04 357 050 1656 059 5.00 300 150
11 1 40 0 32 1.09 0.50 5 04 0 87 500 2 50 0.90
12 4.90 1.10 3 80 0 50 17 64 0.87 500 3 50 1 40
13 4-90 1 10 3 80 0 50 17 64 1 63 5 00 4.40 1 30
14 5.20 1 17 403 0.50 18.72 1.63 5 00 4 40 1 30
15 1.00 0.23 0.78 0 50 3.60 0 50 5.00 1.90 0.90
16 010 002 008 050 0.36 050 500 1.10 0.40
17 ' 0 40 009 031 0 50 1 44 0.50 5-00 1.50 0.60
18 2.20 0.50 1 71 0 50 7.92 0 50 5.00 2.30 1 20
19 200 045 1 55 0.50 7 20 0,50 5 00 2,30 1 10
20 0.40 0.09 0.31 0 50 1 44 0 50 5 00 1 50 0.60
21 4.10 0.92 318 050 1476 050 500 2.70 150
22 030 007 0 23 0.50 1 08 0.50 500 1.40 0.60
23 0.20 0 05 0.16 0.50 0 72 0 82 5 00 1.50 0 40
24 0.70 0.16 0 54 0 50 2.52 0.82 500 2 00 0.70
25 020 0.05 016 050 0.72 061 500 1.30 050
26 050 0.11 0.39 0.50 1 80 0.61 5-00 170 0 70
27 0.30 0.07 0.23 0.50 1.08 8.53 5 00 4 00 0 30
28 0 80 0.18 0.62 0.50 2.88 8 53 500 3-30 0 60
29 020 005 016 0.50 0 72 2.52 5 00 2 30 0 40
30 0 50 0.11 0.39 0 50 1.80 2.52 5.00 2.90 0 50

Low Density Attachment
Drainage Pervious
Swale # Area BUA area C Q Slope Va,bw Vact a, Flow
ac .=. (ac) (ac) (cfs) (%) (fps) (fps) depth (ft)
31 1 1.50 0.34 1.16 0.50 5.40 6.57 5.00 3.40 0.80
32 0.30 0.07 0.23 0.50 1.08 6.57 5.00 4.00 0.30
33 1.80 0.41 1.40 0.50 6.48 3.33 5.00 5.00 0.70
34 0.30 0.07 0.23 0.50 1.08 3.33 5.00 2.80 0.40
35 2.10 0.47 1.63 0.50 7.56 3.33 5.00 5.00 0.80
36 0.40 0.09 0.31 0.50 1.44 3.33 5.00 3.00 0.40
37 410 0.92 3.18 0.50 14.76 1.00 5.00 3.50 1.30
1 38 0,50 0.11 0.39 0.50 1.80 1.00 5.00 2.10 0.60
39 4.40 0.99 3.41 0.50 15.84 5.14 5.00 3.90 1.20
40 0.60 0.14 0.47 0.50 2.16 5.14 5.00 4.00 0.40
41 1 0.20 0.05 0.16 0.50 0.72 2.79 5.00 2.30 0.40
E -
42 0.20 0.05 0.16 0.50 0.72 2.79 5.00 2.30 0.40
i 43 0.40 0.09 0.31 0.50 1.44 1.00 5.00 1.90 0.50
44 0.40 0.09 0.31 0.50 1.44 1.00 5.00 1.90 0.50
45 I 0.60 0.14 0.47 0.50 2.16 5.00 5.00 4.00 0.50
46 I 0.60 0.14 0.47 0.50 2.16 5.00 5.00 4.00 tI, 0.50
47 I 3.40 0.77 2.64 0.50 12.24 2.59 5.00 2.90 . 1.00
T
48 0.60 0.14 0.47 0.50 2.16 2.59 5.00 2.90 1.00
49 3.20 i 0.72 2.48 0.50 11.52 5.67 5.00 3.70 1.10
50 0.40 0.09 0.31 0.50 1.44 5.67 5.00 3.70 0.40
51 6 1.90 0.43 1.47 0.50 6.8496 2.25 5.00 3.90 0.80
52 0.20 0.05 0.16 0.50 0.72 2.25 5.00 2.20 0.40
53 I 1.10 0.25 0.85 0.50 3. 3.09 5.00 3.80 0.70
54 0.10 0.02 0.08 0.50 0.36 3.09 5.00 2.00 i, 0.30