SW8031214_COMPLIANCE_20110727

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
k5la IL
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
I�D COMPLIANCE EVALUATION INSPECTION
DOC DATE
-7,o3l
YYYYMMDD

Page 1 of l
David Hollis
From David Hollis
Sent Thursday, July 21, 2011 11 01 AM
To 'angela hammers@ncdenr gov'
Cc 'Matt Regets', fleonard@nrpgroup com, Greg Wayne
Subject FW Vineyard Pointe
Attachments Vineyard -certification pdf, Vineyard pond as -built -final pdf
Angela
Attached please find the pond as -built drawing and certification requested by the owner for Vineyard
Pointe SWB 031214 Hard copies of the certification and pond record drawing are in the mail Let us know
if you need anything else Thanks
David
From: Matt Regets [madto mregets@nrpgroup com]
Sent: Thursday, March 10, 20118 34 AM
To: 'angela hammers@ncdenr gov'
Cc: John Leonard, David Hollis, Joe Largey
Subject: Vineyard Pointe
Angela,
I wanted to update you on the status of the As Built Survey for Vineyard Pointe, Storm Water Project #
SW8 031214
Hanover Design Services completed there on site survey All appears to be in order except for the
accumulation of sediment in some areas We are in the process of setting up a contractor to remove
that material Once completed Hanover will finish there survey and As Built Drawings then we will
submit them for your review
Please let me know if you have any questions or comments
Thank you
Matt
Matt Regets
Project Manager
NRP Contractors LLC
5309 Transportation Blvd
Cleveland, Ohio 44125
[phone] Direct
[phone] Fax
mregeets@nrpgroup com
120
0 � t"
Mnitl>'�ty +retop��t � rl u 3 y 1 4'
Firm o€tht Year
7/2 I /201

State Stormwater Management Systems
Permit No SW8 031214
Vineyard Pointe
Stormwater Permit No SW8 031214
New Hanover County
Designer's Certification
1, _ &-5 .k� � i i tb , as a duly registered Pe I.1 LS
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for -F-e "RP !gR� -i, LL—C(Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification
Noted deviations from approved plans and specification
c
Q�'-Cc►�.�c�,i�...'�—tgti �ij1'J6t3QG(�, ? ON9l �0
•
SEAL g
<I-Vt - pVC c0tl;;6,cq-=s (XU4 20007 =
O'CI NEB
Signature -- - - - - �rn••.Hoi�,,�.
Registration Number 2COCY7
Date -7 • Zo . t {
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No SW8 031214
Certification Requirements m
✓1 The drainage area to the system contains approximately the permitted
acreage
2 The drainage area to the system contains no more than the permitted
amount of built -upon area f
✓ 3 All the built -upon area associated with the project is graded such that the
runoff drams to the system
4 All roof drains are located such that the runoff is directed into the system
5 The outlet/bypass structure elevations are per the approved plan
6 The outlet structure is located per the approved plans
r,
✓7 Trash rack is provided on the outlet/bypass structure
8 All slopes are grassed with permanent vegetation
9 Vegetated slopes are no steeper than 3 1
�10 The inlets are located per the approved plans and do not cause short-
circuiting of the system
�11 The permitted amounts of surface area and/or volume have been
provided
Y
12 Required drawdown devices are correctly sized per the approved plans
13 All required design depths are provided r
✓14 All required parts of the system are provided, such as a vegetated shelf,
and a forebay
15 The required system dimensions are provided per the approved plans
cc NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspections
1
Page 8 of 8

Compliance Inspection Report
Permit SW8031214 Effective 03/30/04 Expiration 03/30/14 Owner NRP Vineyard Pointe LLC
Project Vineyard Pointe
County New Hanover 4818 Franklin Ave
Region Wilmington
Wilmington NC 28406
Contact Person Lon Sharp Title Regional Property Manag Phone [phone]
Directions to Protect
South on Lullwater frmo Market (Rte 17), past Franklin Ave
Type of Project State Stormwater - HD - Detention Pond
Drain Areas 1 - (Burnt Mill Creek) (03-06-23) ( C,Sw)
2 - (Burnt Mil! Creek) (03-06-23) ( C,Sw)
On -Site Representative(s)
Related Permits
Inspection Date 01120/2011 Entry Time 0100 PM
Primary Inspector Angela K Hammers
Secondary Inspector(s)
Reason for Inspection Other
Permit Inspection Type State Stormwater
Facility Status ❑ Compliant ■ Not Compliant
Question Areas
0 State Stormwater
(See attachment summary)
Exit Time 01 30 PM
Phone [phone]
Ext 7317
Inspection Type Compliance Evaluation
Page 1

Permit SW8031214 Owner - Project NRP Vineyard Pointe LLC
Inspection Date 01/20/2011 Inspection Type Compliance Evaluation Reason for Visit Other
Inspection Summary
A PE certification was not found in the file and had not been received since last conversation on 12/7/2010
File Review
Yes
No
NA
NE
Is the permit active?
01100
Signed copy of the Engineer's certification is in the file?
0
■
Q
❑
Signed copy of the Operation & Maintenance Agreement is in the file?
■
❑
❑
❑
Copy of the recorded deed restrictions is in the file?
Q
❑
■
Q
Comment A PE certification was not found in the file and had not been received since
last conversation on 12/7/2010
Page 2

7 All components of the wet detention basin system shall be maintained in good working order
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party
Print name au Tbc r fie' L[. C
Title Inar,l �t �Sk—t✓ _ -- -
Address L U C[�`�i�C - FE7yr�s 12�11r:�L
Phon
Signs
Date
W
Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
I, Y^' ''' % J �'�` r a Notary Publicforthe State of t� _' I(l
f � �
County of ? - �� _ , do ereby certify —that l �"�ky 1 z
,�,_ r' / I �
personally appeared before me this day off � r r� 4. , �—1.1 and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements Witness my hand and official seal,
SEAL
My commission exfhr,;ncssto� 1p�fes'7
J
Form SWU-102 Rev 3 99 Page 4 of 4

Maintenance activities shall be performed as follows
After every significant runoff producing rainfall event and at least monthly
a Inspect the wet detention basin -system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
b Check and clear the onfice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed
2 Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed
3 Inspect and repair the collection system (i a catch basins, piping, swales, nprap, etc ) quarterly to
maintain proper functioning
4 Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below) Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i a stockpiling near a wet detention basin or stream, etc )
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments
s. w
When the permanent pool depth reads �� feet in the main pond, the sediment shall be removed
e
.t t�I
When the permanent pool depth reads r` feet in the forebay, the sediment shall be removed
Sediment
Bottom
El.g•�
on --_5
FOREBAY
BASIN DIAGRAM
{fill in the blanks)
Permanent Pool Elevation 42,-0
Sediment Removal Elevationy
Bottom Elevation 3d< a
MAIN POND
75%
25%
5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These
plants shall be encouraged to grow along the vegetated shelf and forebay berm
6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical
u
Form SWU-102 Rev 3 99 Page 3 of

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PINE17
5 P- N 85'S1'42" E255.81' .I.P•
i ` 4 N 85'S3'07 E 175,i8' --
1 t (EXIST
alrcH)
E.I.P.
DRAINAGE EasElNeNr ( �
4'40 zg' DING SETBACK
N 81'2 BU1L,
/ / ELLsouTl�
101.94 / ¢ r - -� r -ELEC. PED. ' i r 77'01'33" E
BOX / 'n r� EASEMENT is i7 G
�jg1r w 70.54 / o¢ �� NON4„UN1C€PAL SIDEWALK n I Al
ROOF FLEV•Y 48.52 i - 10 GONG• (AR _ y12.02' �-
/ F/F ELEV. �pC a / N E1` ` Or wAY3 W
P05; I V 50' PUB00 RIit4
I i r 1 •4TE"RC N C/C � 3`'
CONC. SIDEWALK L5.
1
1
�1
1
Islrl
GONG. SIDE 246 54
I
~ I
/
YARD S 7701 33" W
I G5 01.s:
�
/
STREET
f TR
1
E.I.P,
RE
NO
THISPAR(
�9�3
1 79.38
ELEV 47.38
QJ t
o \
ule�
�L
ROOF
1 ELEV
r•, , � O 1' 1 F/F
47 .t (u
a
I.S. .5. O •N
CURVE
RADfVS
DELTA ANCLE
TANGE
T CHORD BEARING
CHORD LENG
C1
701.12'
03'07'49"
19.16'
S 152341" E
38.30'
G2
701.12'
02'03'O3"
12, 55'
5 17 59'07" E
25. I I)'
C3
701.72'
O2'0332"
12.60'
S 20.02'25" E
25.19'
C4
701.12'
00.54,031,
5.51'
S 2131'T2" E
11.02'
C5
200.00'
33'4359"
50.54
N 6009'34" E
116.06'
C6
225.00'
2S'0046"
49.91'
N 643i'10" E
97.45' TOT.
C7
40. 00'
33 4627"
12,14'
N 68'54'01 " E
23.24'
C8
44.04'
25232'36"
54.78'
S 42'59'03" E
66.61' 7OT:
C9
40.00'
48'3T023233'10"
E
32,93'
CIO
17-lino'20'095
31.12'
N 6656'37" E
61.27'
UNE
BEAft1NG
DISTANCE
L1
N 74'42 S1 ' E
7.87'
L2
s 43'1 r3 W
?fi.57'
POND 1 AS -BUILT SUMMARY (6-23-11)1
ITEM AS -BUILT
1, All slopes permanent vegetation Yes
2, Normal pool surface area 3,712 sf
C, NG / r� 3, Normal pool Surface Elevation 41.8 MSL
z�
/ / 2 4. Pond depth (deepest point) 6.9 feet
RRITT 5, Bottom elevation (deepest) 34,9 MSL
N/F HARRY PPG73 6, Orifice elevation 41.8 MSL
p,g. 7s7 7, Weir elevation (State storage) 43.2 MSL
51 8, State storage volume 6,940 cf
LOT 9, 10'vegetated shelf Yes
10. 10'access Yes
11, Forebay Yes
ff' \ i 12, Outlet elevation 4L8 MSL
DEWA /✓ .��- \ \\ 1 13, Primary Spillway elevation 44.9 MSL
/ - - 14, Emergency Spillway elevation 44.9 MSL
"` / A� • =� \ � � \ \\ �1 _ 1 - "1� 15. Embankment elevation 46,0 MSL
16. Side slopes (typical) 311 to 511
a\\, \� ✓f J l 1 LOT 50 17, ❑rifice size 11 PVC
K
I � �`�.� ` r�. V� �w OF GOLL1=�uGHA1N -
`.� ��'f7 1 1 ` 42�4t y •N fay HOWAI" L 1959 POND 2 AS -BUILT SUMMARY (6-23 11)1
4912� 79.36 o pATEq MAY' ITEM AS -BUILT
ROOFEL v�� 473c 1: All slopes permanent vegetation Yes
\�� \ � I p g
`�\\ 2, Normal pool surface area 4,437 sf
3, Normal pool Surface Elevation 41.9 MSL
4. Pond depth (deepest point) 6,1 feet
i 5. Bottom elevation (deepest) 35.8 MSL
61
\\\\\\i�= �� DUMPS 1 v /
\� - / _=T i 6, Orifice elevation 41.9 MSL
7, Weir elevation (State storage) 432 MSL
8, State storage voturle 7,560 cf
9, 10 vegetated shelf Yes
10, 10'access Yes
SEE 1 N S ET I !\I �� �� �� ��="��'.aG� Fs� 2
1
1 I ,e RCP IN4 ~�-� e4 e�, 1 �-'�. a 11, Forebay Yes
THIS SHEET 1�,�' � I1 \ 1 I _ FK'­V" �\ - 1 1 LOT
49 12, Outlet elevation 41,6 MSL
1\ I , N F HARRY�49RITT 13, Primary Spillway elevation 44,8 MSL
,r G.
N/ 710
I 1 I �✓ f ti� u,'`' BO D.B 14. Emergency Spillway elevation 45.4 MSL
15. Embankment elevation 46,0 MSL
8pe CIO 16, Side slopes (typical) 311 to 511
,r1 �� _ / 17, (]rifice size 1 PVC
4 1 -Ii / / �` LIT
AR' RETENii OND ` 20
LIGH
i ��
S rpUBl/cJ \
32.8-
LOT AREA = 6.27 acres
AREA OF ➢ISTURBANCE -- 5.0 acres ±
Park areas, buffers, and
existing ditches not to be
disturbed except as shown,
IMPERVIOUS AREAS -
Buildings - 41,501 sf
Parking - 40,567 sf
Other - 39,900 sf
490 791
ROOFELEV'I.='47 45
F/F
�1a �
to UBLIC
2° P
La
4900 3
a
3
or Lr�V - 47?3
"F rz
U
LEGEND
EXIST, STORM DRAIN MANHOLE
DROP €NLET
EXIST. SANITARY SEWER MANHOLE
EXIST, WATERLINE & F/H ASSEMBLY
o
EXIST, DRAINAGE PIPE
-S- EXIST. GAS UNE
C•Sy, DRAINAGE FLOW
-F49.0 INDICATES SPOT ELEVATION
(CONOL)
40 20 0 40 SO
Copyrigh t Q,Han over Design Services, P.A., Ali rights reserved. Reproduction or use of the contents of this document, or additions or deletions to this
document, in whole or port, without written consent of the Land Surveyor or Engineer, is prohibited. Only copies from the original of this document,
marked with the original signature and original seal of the Surveyor or Engineer, she!! be considered to be v0d and true copies.
28%
LIGHT
am �
i'E `S �pUgC/c � � t
l LOT 48
N/(F, P� 70
O.B.
1 GON
1 5t 4 1
\ 490$ 4 `n
1 1 FIFELEVV.Y 4724 ��rn_ E,I.P• '
1 1 ` N/F LUTHER G, BROWN
1T 1 ti' LOT 47
4g04
22
ROOF E1 vV'� 47,22
F/F EL: '
AA
4 Og,
10 67 42 05v YI
5
1 x 1
1
o.
1
W
t36
r
N/F MARION fi35 PGN 1S 466
0.8'
ALL SLOPES
a
3,1 MAXIMUM
w
0.5'
ace Forebay
oo�
Bottom
OUTLET
wo
ramie"''.--;9.&
4'min.
PROTECTION
AS ON PLANS
Qe
y�o
j Elev.-37.7
(# 1)
Elev.-37.6
(# 2)
FOREBA Y SECTION DETAIL
NOT TO SCALE
OUTLET STRUCTURE
NTS
BOTH PONDS
1'WEIR CUT 4
HOLE
4
TRASH RACK BOLTED q-
SECURELY IN PLACE
CONSTRUCT NEW
WELDED BAR GRATE,
GALVANIZED,
OR EQUIVALENT
SECURELY BOLTED OUTLET
IN PLACE 18 RCP
1" PVC
ORf=ACE
1 "WEIR CUT
TRASH RACK
PLAN VIEW
CONSTRUCT
2 ar 8
GRATE TOP
EL- 4-f 9
4' q
1 "PVC TEE
W/ CAPPED TOP
1 - 4.12
1 1--'4f.8
TRASH a
2 - �2
12-4-12
�
12- 41.$
RACK
EL - 44my
WSEL=
-6-
+P.
T" PVC
i 1- 4T.8
� 2- ii.9 -mire
S
INV= if t-
12- 41.1
�.E30X 1NV=41.G
BOX INV-4019 it
BOX INV-*aa p
SECTION WE iW
MARKET ST
US RTE 17 & 74
250s
I I FRANKLIN AVE.
Y r�
SITEr�,�
EMERSON ST. o�
N
r`7 �
GREEN WAY AVE.
LOCATION MAP
NOTTOACALE
/ TOP OF Bex - 44.93
\ \ \ OF Box - 40.9 FIRE - 41 / / \
NV OF OUTLET PIPE 41.W / \
/ WEIR INVERT - 4323 , / \ \ \
CON
51DEINALK
cliD Lo T F o \
(Pb fI D -1 1 \ \ I
j 1 1
`F. E. S J 2/ ' eC = 4-2. 07
�fi058 Q. FT. ` 1 1
'3i12 SQ}1
EL= 41.8TOP OF BOX -
NV OF BOX . 2. 88 1 \\ \ ` \ \ \\O `\\\ \\\ \ \ \ \ \ �. � !
!NMY V or I' PIPE 41.88
WEIR or TLET PIPE . 41.62
WEIREf111 \ \
R INVERT - 43.18
C OrN VCBE PE ` \ \\\\ \ \\\� \ \ \ \ ti -� • f � M
LICHT
INSET
SCALE: 1 wo= 20'-qc
I v s
I• \ 1 � c
1==
, I J� 1 / % FES 18" RCP �NV - 1. I Q
-
1 Nr •4c
y c
Q
\0
Olcv
071 /
Q0 4437 S
EL= 4
7193 SQ.FF,,��
ADDRESS: 4818 Franklin Avenue EL= 43.2 ,
PARCEL ID: R04919-008-027-000
OWNER 1 DEVELOPER:
THE NRP GROUP, LLC
4030 WAKE FOREST ROAD
SUITE 300
RALEIGH, NC 27609
919-719-2706
POND No,1
DESIGN PEAK DISCHARGE SUMMARY -
Q(10) pre -developed = 7.5 cfs
Q(50) pre -developed = 11:0 cfs
0(10) post -developed = 7.2 cfs @ WSEL = 44,9
Q(50) post -developed = 12.5 cfs @ WSEL = 45,3
1)(100)post-developed = 15.4 cfs @ WSEL = 454
DESIGN WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,200 sf
Surface Area provided = 3,710 sf
Storage Volume required = 5,865 cf
Storage Volume provided = 6,600 cf
Storage Volume Drawdown Time = 4 days
AS -BUILT WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,200 sf
Surface Area provided = 3,712 sf
Storage Volume required = 5,865 cf
Storage Volume provided = 6,840 cf
VINEYARD POINTE - Wet detention / retention pond
DESIGN DATA SUMMARY POND No.1 -
Additional Calculation Summary for NCDENR / DWQ I
WATER QUALITY CONSIDERATIONS -
Impervious area calculations, See Project Data Sheet
TOTAL IMPERVIOUS = 1,6 acres
TOTAL AREA DRAINING TO POND = 3,5 acres
3.5 acres total - 1.6 acres Impervious = 1,9 acre green area
SA REQUIRED! 1.6 X 0,95 + 1.9 x 0,20 / 3.5 = 0.54, or 54Y
At 7' depth, 90% TSS removal - SA/DA factor = 2.1
3.5 x 0,01 x 2.1 = 3,200 sF SA REQUIRED
At Elev. = 42,0 = 3,710 sf SA PROVIDED
VOLUME REQUIRED R=L(PAP j)(Rv)/123(A)
SEE PAGES A,1 and A,2, 'Controlling Urban Runoffs
A Practical Manual for Ptanning and Designing Urban BMPs'
(P)= 1'
(P j)= 0.9
(Rv)7 0,05 + 0,9(1,6/3.5) = 0,461
(A)= 3.5
R= 1(l)(0:46D/12)(3,5) = 0.135 acre-feet
= 5,865 cf REQUIRED STORAGE
At Dev, = 43.2 = 6,600 cf PROVIDED STORAGE
DRAWDOWN,
Average head from storage elevation to orifice -
43.2-•42.0/2=0.6'
i' PVC drain to draw -down required storages
Orifice equations Q = CA(2gh)^I/2
Q = 0,6(,0055)(64.4 X 0:6)^1/2
= 0.0205 cfs
T = 322,000 sec. = 4 days
FOREHAY REQUIREMENTS -
Approximate capacity = 8,030 cf X 20Y = 1,610 cf
Provided capacity = 1,615 cF
POND No,2
DESIGN PEAK DISCHARGE SUMMARY -
000) pre -developed = 7.3 cfs
0(50) pre -developed = 10,6 cfs
000) post-devetoped = 4.3 cfs @ WSEL = 44.4
0(50) post -developed = 7.2 cfs @ WSEL = 44,9
Q(100)post-developed = 91 cfs @ WSEL = 45,1
DESIGN WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,400 sf
Surface Area provided = 4,270 sf
Storage Volume required = 4,400 cf
Storage Votume provided = 7,500 cf
Storage Volume Drawdown Time = 4 days
AS" -BUILT WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,400 sf
Surface Area provided >s 4,437 sf
Storage Volume required = 4,400 cf
Storage Volume provided = 7,560 cf
VINEYARD POINTE -- Wet detention / retention pond
DESIGN DATA SUMMARY POND No.2 -
Additional Calcutation Summary For NCDENR / DWQ
WATER QUALITY CONSIDERATIONS -
Impervious area calcutatIonsl See Project Data Sheet
TOTAL IMPERVIOUS = 1.2 acres
TOTAL AREA DRAINING TO POND = 2,5 acres
2.5 acres totak - 1.2 acres impervious = 1.3 acre green area
SA REQUIRED: 1.2 X 0.95 + 1.3 x 0.20 / 2.5 = 0,56, or 56'/,
I
At 6' depth, 90Y.. TSS removal - SA/DA factor = 31
2:5 x 0.01 x 31 = 3,400 sf SA REQUIRED
At Elev. = 42,0 = 4,270 sf SA PROVIDED
VOLUME REQUIRED, R=C(P)(PjXRv)/12HA)
SEE PAGES A.1 and A2, 'Controlling Urban Runoff,
A Practical Manual For Planning and Designing Urban HMPs'
(P)= V
(P j)= 0,9
(Rv)= 0.05 + 0,9(1,2/2,5) = 0,482
(A)= 2.5
R= 1:(D<0,492)/123(2,5) = 0.101 acre-feet
= 4,400 cf REQUIRED STORAGE
At Elev, = 43.2 = 7,500 cf PROVIDED STORAGE
DRAWDOWN=
Average head from storage elevation to orifice -
43.2 - 42.0 / 2 = 0,6'
1' PVC drain to draw -down required storages
Orifice equation) Q = CA(29h)^1/2
Q v 0.6(.0055)(64A X 0.6)^1/R
= 0.0205 cfs
T = 368,000 sec. M 4 days
FORE$AY REQUIREMENTS -
Approximate capacity = 8,370 cf X 20% = 1,675 cf
Provided capacity = 1,665 cf J
NOTES•
f. PORTABLE PUMP TO BE USED TO DRAIN
POND IN CASE OF EMERGENCY. PUMP TO BE
PLACED ON TOP OF BERM IWTH SCREEN
ATTACHED TO HOSE INLET ANO COVERED WITH
STONE, HOSE OUTLET TO DRAIN ACROSS STABLE
UPLAND AREA SUFFICIENT TO RESTRICT EROSION.
2. ALL BUILDING ROOF DRAINS MUST BE OIRECTED
INTO THE STORM DRAINAGE COLLEC77ON
SYSTEM OR INTO THE STREET/PARKfNG LOT.
EMERGENCY 46,0 11 =44.$
SPILLWAY= 4-S.4 12 -"8
44.9 # 1 TOP SOX = 44.9 0 t2- 4,l.12
2
45.4#2 ..31
u e4 _ WEIR CUT EL= 43.2
�Ik'•IYt
o rnt
Jw��� 18"RCP
EMBANKMENT
SECTION
NOT TO SCALE
NORMAL WSEL= 42,
H CA&Q�°0e�
+ems /"q g6oP¢epo� , d4�d*
�g �i�fQ�O�ESS�QIi% F
SEAL
i 7 �
��r fie' LjJ �
-�, ogUP�j;d S'
�'eea.*•°°°•
mlawre c hdSlim.Com
WETLANDS VEGETATION NOTL;'
THE FMLOiWNG SPECIES OF WETLANDS vEGETAPON ARE SUITABLE
FOR PLANTING ALONG 774E STATE 6: 1 VEGETATED SHELF.
- 5ARTTARIA LATIFOIJA (COMMON ARRDWHEAD)
- SA9TTARIA LANGFGVA (DUCK POTATO)
- SAURURUS CERNUUS (LIZAROTAIL)
- PELTANDRA VWGINICA (ARROW ARUM)
IF ONE OR MORE OF THE SUGGESTED SPECIES 15 UNAVAILABLE,
APPROPRIATE WETLANDS VEGETATION COMMON TO THE COASTAL
NORTH CAROLINA REGION MAY BE SUBSTITUTED
STATE STORAGE VOLUME
POND 1 - -6-689 cf 6,840 CF # t
POND 2--4,S813-Cf 7,560 CF # 2
POND AS -BUILT FOR s nac:
-23- 1
Vineyard Pointe
LOCATED IN THE CITY OF WILMINGTON WLMINGTON TOWNSHIP Y.-- -
NEW HANOVER COUNTY NORTH CAROLINA Drawn:
MJL
s►''�Qs' G�.SSI��°�� Rio_
SE AL
20007
' .zt-i}
[e-mail]
OWNER: The NRP Group LLC
4030 Wake Forest Rood, Suite 300
Raleigh, NC 27509
919- 719-2706
HANOVER DESIGN SERVICES, P.A.
LAND SURVEYORS, ENGINEERS & LAND PLANNERS
1123 FLORAL PARKWAY
WILM
wILMINGTON, N,C. 28403
PHONE: [phone]
LICENSE # C-0597
Checked:
DSH
Project No:
Sheet No:
1
Of:
r
ij[ t �'� / � lfit. ', 1 : �I' F4 k• 1 a,r � s-. ! i � � It, c ; I : rr ', 1 (•pr II f'71 r1'S �r l �''I H.}SI! I1� i 4 t�lti,l� 1t tI, !+ �
{�.4 �4i•1 ; i j L o1i41�..I
ddi

1
PV _y 1 D ONA7g6 PG• 949
EAGLE 38NI EPC. 250
l i 1
4 C T 3g ©.a•
I E
pYLI 3G� l LOT 38R ,, plNEDA� 17
8�r ram. FIIN� -LE 17 M © 5 P Io6)
LOT 3; M.� 1 1 (P
NI.I�. 255.81' E'i P
5
N 85'51'42" E
175.18'
t � N 85'53'07„ E—
} 1 E. 1. (EXIST. D17CN)
1 1 �• DRAINAGE Eas>�EN1 ( �
i59.99 7 0� ` f -
N 81-24'40 E / '� 2g' BUfLO1NG SETDACK
I r
�soti� � � �
/ _ —
L.I-ELEC- Peso. _
/ SEMENT N 77 01 33"
7r r 4917 j 70-54 �' oc `- pNMUNICIPAL EA SIDEWALK D1) AN�
RFELEVV. J 48.52 �G� ¢ ' _ O 10 N R OIE WA �� , r.p2 s
PUIBLI%G� 142) 5 7; 3�` "�
4� 181.87,
CONC. SIDEWALK I.S.
P NAIL
3
WALK N 77'01'3,. E //
r rr tiU 11 r 1 CONC SIDE o 2,46 54
/
1.5, STREET YARD
1
/
4`i11 1 rh �"I. �
4g13 @� l 1 soA � NTH19 PARCEL
a
LLV. =
1 00F E _ 47.38
F/F E�' 4 LS. 5,
l v 1
CURVE
RADIUS
DELTA ANGLE
TANCEA
T CHORD BEARNG
CHORD LENG
C1
701-12'
03'0749"
19,16,
S 1523'41" E
.58.30,
C2
701 12'
02'03'03"
72.55'
5 17'59'07" £
25.10'
C3
701,12'
02'03,32
12. 60'
S 20'02'25 ' E
25.19'
C4
701.12'
00 54'03"
5.5 1'
S 21 31'12" E
C5
200.00'
33743'59"
60.64'
N 60'09'34" E
116,66,
C6
225.00'
25'00'46"
49.91'
N 6431'10" E
97,45' TOT.
C7
4Q.00'
334627"
1 12.74'
1 N 6854'01" E
2324'
C8
44.00'
257 32'36"
54.78'
S 42 59'03" E
6
C9
40.00'
4837`02 '
18.07'
N 3233'10' E
3
C10
175.00'
20-09.52"
31.12'
N S6'56'37" E
61
LINE
BEARING
DISTANCE
Li
N 74'42'S1 E
7.87'
L2
S 43.17'3 " 4
16.57'
POND 1 AS -BUILT SUMMARY (6-23-11)1
w
Q
ITEM AS —BUILT
/ �� � � L All slopes permanent vegetation Yes
2, Normal pool surface area 3,712 sf
3. Normal pool Surface Elevation 41.8 MSL
4, Pond depth Cdeepest point) 6,9 feet
P. MERRITT 5, Bottom elevation (deepest) 34,9 MSL
\ / r1/Fp1�ag7 Pc,73 6, Orifice elevation 41,8 MSL
j; Ji1i / D$. 7, Weir elevation (State storage) 43.2 MSt-
51 8, State storage votume 6,840 cf
LOT 9, 10'vegetated shelf Yes
10, 10'access Yes
\ \ / 11. Forebay Yes
�� ` ��` sroEwA ��� �/ fir �� �\\p 1 1 / 12, Outlet elevation 41,8 MSL
� r��r �� �\` / / 13. Primary Spillway elevation 44,9 MSL
141 Emergency Spillway elevation 44,9 MSL
`� 15. Embankment elevation 46,0 MSL
1 �/ , _, a• -1... 16, Side slopes (typical) 3 1 to 5:1
f LOT 50 17, Orifice Size 11 PVC
PA
F COLLEGE LRN
R� -y 4 N eY HOWARMAY 79 9 POND 2 AS -BUILT SUMMARY (6-23-11),
l _ 1 A 1 491�= 19.36 0 DATED ITEM AS —BUILT
\\ l
ROOF ELEV- 47.36 N 1, All slopes permanent vegetation Yes
LICH ---� � �,..1! 4^ � � � � 2, Normal pool surface area 4,437 sf
3, Normal pool Surface Elevation 41.9 MSL
4, Pond depth (deepest ,�� \ qe � \ \\\'�,• � / P P paint) 6,1 feet
5, Bottom elevation (deepest) 35.8 MSL
6, Orifice elevation 41,9 MSL
,1� 1 ��\ \\\ `J \•��� \�`\\� ` �, / /� _ 1 " ` ICH E.I.P. / 7, Weir elevation (State storage) 43.2 MSL
— 8, State storage volume 7,560 cf
��-,S`\ a --\ � _ �. 9, 10 vegetated shelf Yes
^' V�\
EEINSET .off c� Zr; 10, 10 access Yes
11, P orebay Yes
rn 1 J I 11# te' RCP INV - "�—`� eP �.�5 e�/ J� `
y . ' ' DENT \_ 1 LOT 49 T 12, Outlet elevation 41.6 MSL
THIS SHEET 1 /l 1'4-1`/s N P. mall
1 1 � r_ S prTc _` 1 C. Q NIFD�pR710Pd.497 14, EllergeYlC13, Primary �ilspilw yway eelev lion 45vaticri ,4 MSL
�o f �L, w 15, Embankment elevation 46.0 MSL
Cie q�Ess �� 16, Side Mapes (typical) 3:1 to 5:1
17, Orifice size 1" PVC
LIGHT
COT
`\ .YC POND
ROCO11 �Q� LIGH , 1�� 2p.
C'ES
4901 l
C. 79.4,
R OFFELEVV 47'45
Qcv�
ti ifs �
t— m
LOT AREA = 6,27 acres
AREA OF DISTURBANCE - 5.0 acres t
Park areas, buffers, and
existing ditches not to be
disturbed except as shown.
IMPERVIOUS AREAS --
BLtRdings - 41,501 sf
Parking - 40,567 sf
Other - 39,900 sf
LEGEND
Ie
EXIST. STORM DRAIN MANHOLE
DROP INLET
F�
EXIST. SANITARY SEWER MANHOLE
1
EXIST. WATERLINE & F/H ASSEMBLY
EXIST. DRAINAGE PIPE
EXIST, GAS LINE
�9a
DRAINAGE FLOW
+49,0.
INDICATES SPOT ELEVATION
32'g
40
20
0
40
80
SCALE
IN
FEET: I"= 40'
4900
_ 79.23
ROOF ELEV� = 47'23
F/F
trl / _,_ 0 -,- E.J.P.
I7ST
i 1�cFS Orr
Ma �
o.
1
]/LOtA
Capyrtght gf , Hanover Design Services, P.A., Ail rights reserved. Reproduction or use cf the contents of this document, or additions or deletions to this
document, in whale or port, without written consent of the Cand Surveyor or Engineer, is prohibited, Only copies from the originai of this document,
marked with the original signoture and original seal of the Surveyor or Engineer, shall be considered to be valid and true copies.
4E104
1 11 79,22
�•0 FIFFE�E�
�kb U9
;p 5 6�4w
LOT 46
1SLIGHT ` ` N� Ell", 70
l.- \ D•
C4
1 A
490$
to
1 T ROOF ELEV.= 47 24 i
it 1 n F/F ELEV. a E.I.Pi
1 N 1 NIF LUTHER G, BROWN
HT I 1 P. ,' LOT 47
1 x
1 1 INS
1 a,
1 1
136.
r
NIF MARION 635 -PGBARN 4166 5R
F � N
ALL SLOPES Ove
3: 1 MAXIMUM r
T — — — — — — — — — o p 11
Forebay
■ '00 Bottom OUTLET
z zr,- c PROTECTION
�0 4Im AS ON PLANS
Q�'
1 Elev.-37.7 (1 1)
Elov.-37.6 ( 2)
FOREBA Y SECTION DETAIL
NOT TO SCALE
OUTLET STRUCTURE
NTS
BOTH PONDS
1'WEIR CUT y
HOLE
4
TRASH RACK BOLTED 4"
SECURELY IN PLACE
CONSTRUCT NEW
WELDED BAR GRATE,
GALVANIZED,
OR EQUIVALENT
SECURELY BOLTED OUTLET
IN PLACE 18'RCP
ill PVC
3RIFACE
1'WEIR CUT
rRASH RACK
PLAN VIEvV
/ 1 -44r9
CONSTRUCT
3
1
2 -"a
GRATE TOP
EL- 49r9
a' 4
i PVC TEE
W/ CAPPED TOP
1 - 412
/ 1-"41.8
12- 4,12
RACK
f 2-- 4,.9
EL- 4AP
1 " PVC
1- 41.8
I
OUTLET
2- 41.9
18 "RCP
S B
INV= if 1- 41.
12- 41.6
•.80X lNV=4'.d
BOX INV-4a 9 /1
BOX AYV-4Q.8 #2
SECTION VIEW
MARKET ST.
US RTE 17 & 74
250D'f
� o
I N
w FRANKLiN AVE. ti W
sal' Tor. (r (( I \ SITE
2,27' ENERSON Sr
GREENWaY AVE.
LOCATION MAP
( TOP OF BO% a 44.93 /
( , INV OF BOX
J INV OF O PIPE - 4i.83
/ INV OF YEIRT 43 ,2 - 43.83
\ \ WEIR INVERF = 43.23
O LD T O `\ CPO.
\\ �� \5058\ Q. FT. 1 1 -F.� f27- RC - �.07
`3412 sQIN Or BOX 4f.7a
TOP OF BOX - 44,78
INV
tNV OF OUTLET PIPE - 41.62
WEIR INVERT - 43A8 \ \\ \ \ \ \
j--(-
NSET.
7�
SCALE: 1 "= 20'
OCJ
1'
Z FES 18" RCP �N V - 1.
� 1� /
ire Q�cFs
Co
tv 4437
EL=
J
7193 SQ.
ADDRESS: 4818 Franklin Avenue EL= 43.2
PARCEL ID: R04919-008-027-000
OWNER 1 DEVELOPER:
THE NRP GROUP, LLC
4030 WAKE FOREST ROAD
SUITE 300
RALEIGH, NC 27609
919-719-2706
POND No.1 :
DESIGN PEAK DISCHARGE SUMMARY
1)(10) pre -developed = 7.5 cfs
Q(50) pre -developed = 11,0 cfs
000) post-deve(oped = 7.2 cfs @ WSEL = 44.9
Q(50) post -developed = 12.5 cfs @ WSEL = 45.3
0000)post-developed = 15,4 cfs @ WSEL = 45,4
DE51GN WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,200 sf
Surface Area provided = 3,710 sf
Storage Volume required = 5,865 cf
Storage Volume provided = 6,600 cf
Storage Volume Drawdown Time = 4 days
AS -BUILT WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,200 sf
Surface Area provided = 3,712 sf
Storage Volume required = 5,865 cf
Storage Volume provided = 6,840 cf
VINEYARD POINTE -- Wet detentlon / retention pond
DESIGN DATA SUMMARY POND Nod -
Additlonal Calculation Summary for NCDENR / DWQ
WATER QUALITY CONSIDERATIONS -
Impervious area calculations: See Project Data Sheet
TOTAL IMPERVIOUS = 1.6 acres
TOTAL AREA DRAINING TO POND = 35 acres
3,5 acres total - 1.6 acres Impervious = 1.9 acre green area
SA REQUIRED: LIS x 0.95 + 1.9 x 0,20 / 3.5 = 0.54, or 54%
At 7' depth, 907 TSS removal - SA/DA factor = 2.1
3.5 x 0,01 x 2.1 = 3,200 sf SA REQUIRED
At Elev, = 42.0 = 3,710 sf SA PROVIDED
VOLUME REQUIRED, R=I(P)(PJ)(Rv)/12](A)
SEE PAGES Al and A2, 'Controtling Urban Runoff,
A Practical Manual for Planning and Designing Urban 13MPs'
(P)= V
(P j)= 0,9
(Rv)= 0,05 + 03(1.6/3.5) = 0,461
(A)= 3.5
R= C(D(0.46D/121(3,5) = 0,135 acre-feet
= 5,665 cf REQUIRED STORAGE
At Elev. = 43,2 = 6,600 cf PROVIDED STORAGE
DRAWDOWN:
Average head from storage elevation to orifice -
43 2 - 42.0 / 2 = 0,6'
V PVC drain to draw -down required storage,
Orifice equation: 0 = CA(29h)^1/2
Q = 0,60055)(64.4 X 0,6)^1/2
= 0.0205 cfs
T = 222,000 sec. = 4 days
FORERAY REQUIREMENTS -
Approximate capacity = 8,030 cf X 20% = 1,610 cf
Provided capacity = 1,615 cf J
POND No.2
DESIGN PEAK DISCHARGE SUMMARY --
Q00) pre -developed = 7.3 cfs
Q(50) pre -developed = 10.6 cfs
0(10) post --developed = 4,3 cfs @ WSFI_ = 44,4
Q(50) post -developed = 7.2 cfs @ WSEL = 44,9
Q(100)post-deveLoped = 9.1 cfs @ WSEL = 45.1
DESIGN WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,400 sf
Surface Area provided = 4,270 sf
Storage Volume required = 4,400 cf
Storage Volume provided = 7,500 cf
Storage Volume Drawdown Time = 4 days
AS -BUILT WATER QUALITY POND CONSIDERATIONS -
Surface Area required = 3,400 sf
Surface Area provided = 4,437 sf
Storage Volume required = 4,400 cf
Storage Volume provided = 7,560 cf
VINEYARD POINTE - Wet detention / retention pond
DESIGN DATA SUMMARY P13ND No.2 --
Additional Catculation Summary for NCDENR / DWQ 1
WATER QUALITY CONSIDERATIONS -
Impervious area calculations: See Project Data Sheet
TOTAL IMPERVIOUS = 1.2 acres
TOTAL AREA DRAINING TO POND = 2.5 acres
2.5 acres total - 1.2 acres Impervious = 1.3 acre green area
SA REQUIRED: 1.2 X 0,95 + 1.3 x 0,20 / 2.5 = 0.56, or 56%
At 6' depth, 90Y TSS removal - SA/DA factor = 3.1
2.5 x 0,01 x 3A = 3,400 sf SA REQUIRED
At Elev, = 42.0 = 4,270 sf SA PROV€DED
VOLUME REQUIRED. R=I(P)(Pj)tRv)/12RA)
SEE PAGES A.1 and A.2, 'Controlling Urban Runoff,
A Practical Manual for Planning and Designing Urban BMPs'
(P)= 1'
(PJ)= a9
(Rv)= 0,05 + 0.9(1,2/2,5) = 0.482
(A)= 2,5
R= I(1)(0A82)/12R2.5) = 0.101 acre-feet
= 4,400 cf REQUIRED STORAGE
At Elev. = 432 W 7,500 cf PROVIDED STORAGE
DRAWDOWN:
Average head from storage elevation to orifice -
43,2-42.0/2=0.6'
1' PVC drain to draw -down required storage:
Orifice equation, Q = CA(29h)^1/2
Q = 0.60055)(64,4 X 0,6)^1/2
= 0.0205 cfs
T = 368,000 sec, = 4 days
FOREBAY REQUIREMENTS -
Approximate capacity = 8,370 cf X 20% = 1,675 cf
Provided capacity = 1,665 cf - -
CA%4e
a� 4Y'reraaaaeeo
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SEAL b
$ E. L-3830
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NOTES:
W£TLAN05 VEGETAION NOTE
1. PORTABLE PUMP TO BE USED TO DRAIN
POND IN CASE OF EMERGENCY, PUMP 7O BE
THE FOU01ONG SPECIES OF WETLANDS VEGETATION ARE SUITABLE
PLACED ON TOP OF BERM WITH SCREEN
FOR PLANING ALONG THE STATE 5.1 VEGETATED SHELF:
ATTACHED TO HOSE INLET AND COVERED WITH
- SAQTTARIA LAIFOLIA (COMMON ARROWHEAD)
STONE. HOSE OUTLET TO DRAIN ACROSS STABLE
UPLAND AREA SUFFICIENT TO RESTRICT EROSION.
- )
SAdTTARIA LANGTF011A (DUCK POTATO
2. ALL SUILOING ROOF DRAINS MUST BE DIRECTED
- SAURURUS CERNOUS (UZARDTAIL)
INTO THE STORM DRAINAGE COLLECION
- PELTANDRA WRGINICA (ARROW ARUM)
SYSTEM OR INTO THE STREET/PARKING LOT.
IF ONE OR MORE OF THE SUGGESTED SPECIES IS UNAVAILABLE
APPROPRIATE WETLANDS VEGETAION COiWON TO THE COASTAL
NORTH CAROLINA REGION MAY BE SUBSTITUTED,
EMERGENCY 46.0
if 1 -44,9
SPILLWAY= 4 S.
-44.8
STATE STORAGE VOLUME
44.9 # 1 TOP
BOX = 44.9 # 1 - 412
POND 1--6,589-Ci 6,640 CF � 1
45.4 2
12 - 442
POND 2 - �6- cf 7,560 CF # 2
II N
WEIR CUT EL= 43.2
� �`�'
NORMAL WSEL=
42.0 1-• 41.8 ��
y� 18"RCP
L.— V
EMBANKMENT
SECTION
NOT TO SCALE
r POND AS -BUILT FOR
Vineyard Pointe
LOCATED IN THE CITY OF WILMINGTON WILMINGTON TOWNSHIP
NEW HANOVER COUNTY NORTH CAROLINA
rT f�
lk� CAROil,r,
roerrwra®r
SE AL
20007
rr
4
� .zt-tt
dhaliis 0 hdsilm_com
OWNER: The NRP Group LLC
4030 Wake Forest Rood, Suite 300
Raleigh, NC 27609
919- 719-2 70B
HANOVER DESIGN SERVICES, P.A.
LAND SURVEYORS, ENGINEERS & LAND PLANNERS
1123
WILMINGTON, FLORAL PARKWAY
NALhIINGTON, N.C. 2$403
P14ONE: [phone]
LICENSE # C-0597
Dgte:
6-23-17
Scale:
1'- 40'
Drawn:
M,IL
Checked:
DSH
Project No:
t4—�—p�dajasb
Sheet No;
Of:
-1 -7F�, I �� 1', '. iRft r F-: r1 s�j. '{..
1,� t ii 1 �. 1 �r ,t �t t' ! 1 e ; � I ;; }�- - 4� 11 1, r ryy 'I yi .f°i 7 1 _- i`•'.
i � i�. , .. r :� �•,. ,l t,�., ,..,r ... ... ... ..., ., .., .. ..,6 .� Sia s, .i: I „3.F n+a rsl,4 L.A...16 ,.i.,t. t: :, ,•b