SW3191204_Supplement-EZ Form_20200106

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HNI1111100 ►►►►►N

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HB ORAIWE AREA 1
rainage area number
1
Small down of BUA 1n lime du_rrssv apra 1taW aed axladlrg):
?W con1M r,,darda area [eq III
of
• Pwkky I dfivawpy [aq R]
30608 Y
atal surface water area (eq N
M
• Sidewalk [eq RJ
•
17446 e1
272768 at
71M r4alnd0e Dien M B)
- Reof (iq A) _ —
- ff7450 k
at
UA associated with odlfng deue"ore(p it)
^ RMdrray{pry)
39656 Y
179507 sf
reposed new BUA (sq FL) _
u F](t phiaa_npe! tlyin the comment box below {aq ryy
35408 of
arcenl BUA of drainage area
179587 sf
630/6
TOW BUA (still ft)
OFiPLIAMC! VM THE APPLICABLE STORMWATER PROGRAM
lormwaler program(s) that apply (please specify): Dingo rainfall depth (In)
MWmon volume required (cu fl)1Ap'f4.ef
10sa'Sn
volume of SCM (per A)
9GRiA of
I Is the SCM sized to (real the SW from all surfaces al build -out?
Ydo
N7 If applicable, with the SCM be cleaned out after construction?
2 Is the SCM located on or near contaminated sells?
No
NR Dwe the_melnelenance access comply with General MDC (8)?
Yes
1 What are the side elopes of the SCM (H:V)? f
.3it
so Ooel lha adnat" mmpfy with t3arorof dl{H; (9}?
Yea
3 Does the SCM have ryldlling walls�ablon wells or other engineered solo dopes?
NO
10 If the SCM Is on j a* }Pally Wl, done IIn phd comply will, General 114-C (10)71
1 Are the inlets, oullels, and recelving stream protected from erosion (10-year storm)? _
Yea
gill Is there an 08M Agreement that complies with General MDC (11)?
i Is there a a b as for flows in excess of the design flow?
YP _ 9
.. — —
Vas
-.__T
opnlp4w..Alh o3an�ra)-MQC [12i?
N12 ra lheremq,Mkfinn pWl..-..
_ __ Yea
i Whet is the method far the SMA for mBNfenancd7
Poop (prororred)
Nf 3 Was the SCM danglod by an NC licensed rlydtrNMarp17
Yes
amaw
I Method used _ _ _
SA/DA
hii Width of the vegetated shelf (f_eet) _ 6 it
I Surface area of the mein permanent pool (square feet)
8329 sf
_ _ _
0 Locatlon of vegetated shelf _ 3iAMrM0e0
I Volume of I main permanent pool (cubic feel)
58320 cf _
US Elevation of lop or shelf ffma — 696-BO
Average depth of the mein pool (feet)
311
$6 Eiavdlionof 6nliarn of 41hp tFTM)
2 Was the vegetated shelf included In the calculation of average depth?
Yes
NS Slaps of vogofuled sW 111M. _ _ _ 6:1
2 Elevalian of the bottom of the permanent pool (fmsl)—
65600
07 Olsmelor of drowdown odlke aZ 1.51n
2 Elevalion of the lop of [hepetmarlonp_ppl Vumq
659.00
N7 Drawdown time for the lemporarypeol _ 76-56
Elevation of the lop of the. temporary pool (fmsl)
664.00
- Own die wTice drewd" frvrrl below nw lap otrfocs at ft WilransM low NO.
3 Depth provid_ed_for sediment storage (inches)
6 in
N6 Does the pond minimize impacts to the receiving channel from the 1-yr, 24-hr storm? Yea
I Are the YYa[l_g) Yid 1>ldNt 1pcldadN78 rr"ll, chat pvald9 rharl•cvc,l4irg"+
r Yes
J�
Are fountains proposed? NO
I Describe any measures, such as berms or baffles, that will be taken to improve the flow path:
R7 II yen, A documorYepon proNdnQ Per Woc pond MDC (9)?
permanent rip rap berm will be constructed between the forebay and the main pool
T
_
N1a In a bath facx or ouwdprlcp prosedpd l0 Wu1ec1 [he outlet►yid"? _ Yes
i Volume of the forebay (cubic feel)
5513
Nil Are the dam and embankment planted in nor -skit ng turf lithi Yes
3 Is this-1 5-20% of the volume in the main prrnl'>
Yee
011 30oci n of turf that will be used on the dam and embankment Bermuda
3 Depth of forebay at entrance (inches)
36 in
1111 Describe the planting plan for the vegetated shelf:
i Depth of forebay at exit (inches)
-- - —
3 Does water flow out of the IbrabaYN anon -erosive monnpr7 _
_
24 In
SwmnP Milkweed - 23 % of veg. shelf
helm turtlehead - 35 % of veg. shelf nom7. 42% of veg shelf
Yes
61n
i . Clean -out for fore
depth may____
Yee
_
9Wi Will the llNeb tm cleaned out when the is reduced to less than the above?
HAL INFORMAT[OA
lease use this space to provide any addllional Information about this wet pond that you think is relevant to the review:
lher BUA breakdown: Proposed Amenity Space and Pond
HIB 13FWNAGE ARBA
rainage area number
2 f
Brallr down of OLIA In the drainagearea(bolh_ne_w andextaling):
ital coastal wellands area (sq fl)
of
Parkxq 1 driveway [p A]
20677 sf
)Lai surface water area (sq [1)
W
SWowek (eq it)
666} of
,let drpelage ode (sq II)
15408a sf
_ _
•Fixer 04 n)
32449 sl
_
TA Modeled vrilh whta+g dmidepmstx lea II} �
sf
• Roadway (IQ 11)
�78443 sr
loposed new BUA (PA fl) _ _ _
11iCer+1 BUA o1 dro3ngge area "T
101422 sf
66%
. Other, OOM specify In the CGnnwnt box Now (p A) _
To(aI RUA [sq hI
i9999f[
1orf -
0 M P L " C�711� A
lormwaler program(s) that apply (please specify):
owige rawaN lfa" (in)
1A Nr
ran v0will reglArsd (cu 11;
_
—' 9859 cr
Ueign Vaasa of SCM {'w hi
74367 of
1 14 this SCM Wad to treat the SW from all surfaces at build -out?
Yell
►1 II applicable, with the SCM be cleaned out after conslruclion7
Yes
_
! Is the SCM located an a near cpnlamlAeled apes?
_
NB Does the mainelenance access comply with General MDC (8)?
Yes
No
_
3 What are he side Yopm of 9ra SCM "r..^ _
3:1
N9 Does No droilmgo aosomma comply WAIN GMwid MDC (p)? — _
Yes T
No
Yes
3 Does the SCM have tot walls• alrlerlvrels orpPer title Ifopeo'f
°Wn9 g °�
1 Are the kdal:, wools, and racerring stream protected from erosion [1t1•ynaf MdRr]?
Nil If the SCM Is on le 1p Ira- does the o1 cam Mh General MOG 19}?
single i Lha. plot r hI _.(...
N11 Is there an 08M AgraamaM Thal pompllea with Cxr •rat MDC II1)?
HO
..-- . -
Yea
i Is there a a bypass for nerryn excess of the deelgn flaw?
i What is the method for dowarmfng the SCM for maintenance?
_ Yes _
Ianp
f7i2 Io dwo on 6&M Pion that wrnp4ea wile Genord MOC (123?
N13 Won the SCM Beni an NC licensed prdwinewlnf?
Yes
Yes
I Method used
7jA1DA
NB Width of the rugEtafed dtefl Ifeoq
aft
a--..._----
I Surface area of the main permanent ptx{e4(uare Ir»li
11279 sf
AsLrxalkn M W,�Ma61tl shod
Submerged
1 Vblurno of the maln p ntoreird pod (nlblo feel)
21545 of
NB Bovellon of"0 L40 limit)
659 if
2_Average depth of the main pod (Ieeq
311.
— — — _
NB Ekyo9on of bellom d shelf ([mM}
656 it
t Was the YegalaLed shelf included In the eMp,AMlpe of average doAth7
Yes
Na Slope of vegetated shelf (H:V)
6 1
?_Elevation of pro bodorp or the permanent pool final)
656 it
— _
91 Diomow of drmadovfn orifice finiaxiq
1.51n
2 Elevation of the top of the permanent pool (fmsl)_
659
Drawdowp time for the Iomportry pod [hours)
3 his
_
i 6lesdlxln or ear lop of Iha temporary pwi 16; p
_A_
664 fl
_ T
4? Does the orifice drawdown from below the lop wrfoco of the pxlnfawdPw—
No
—
3 Oeplh provided felt sediment womge ("s)
B N
Don U piled ldnLnW krpocts to the recelW+g channel from the 1 , i1-hr 111Mm?
Yes
1 An the wa(s) and rxalot located gl ■ marvmr that ovdee JlpmrLpuilkrg7
Yam
NB Are fountaeu PropoeedT
No
1 Describe any measures, such as berms or baffles, that will be Laken to snprovo Ina Flew polit
_
0 If ^ It dppXnoMWon provided per Wot Pono MDC 1917
0e1130clarY 4;1 rap been WA be OdnNrlgted balM'ae8 gM fMWy and the rrfsNr pool
rr10 1e a Vag(nick or other devke wpwdda to Pralucl mo outlet system?
Yes
T vw me d am lorebay (Oki,1 1) _
1992
_ _
11111 Are the dam and MbeNlman1 planned In cull. clumping lu+f grass?
Yes
3 Is this 15-20% of the volume in the mein pool?
Yu
_
Nit Speddsaf prr dud Net be used on the dam mxl em bnkn+enl
Bermuda
i Depth of forebay at entrance (IInchee)
00 In
N11 tivi n the ptle" den re, Ise vaI led e1+01r
i Depth of forebay at exit (inches)
241n
Swamp Milursed • X7'. A of veg, 11101f
i Does water flow out of the forebay In a non -erosive manner? _ _
3 Clean-cut depth for forebay (Inches)
Yas
13 N
H'hIIA y=khead - 35% or veg. shelf
CndNW (lower - 42% or veg. shelf
I Ww 1.re iroblileqybt o'1NMMd eu1 When Ihd dgiib is fedlaced totem than the above?
Yµ
�fllTION�
lease use this space to provide any additional information about this wet pond that you think Is relevant
to the review:
Iher BUA breakdown: Proposed Amenity Space end Pand
_