SW7070124_HISTORICAL FILE_20070118

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �(J l(%k
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
7z1��
YYYYMMDD

Human & Rohev. PC
Consulting Engineers and Land Surveyors [phone] Office
[phone] Office
[phone] Fax
Roger Thorpe
Division of Water Quality -Surface Water Section
Washington Regional Office
943 Washington Square Mall
Washington, NC 27889
Subject: Stormwater Management Permit
Parks Land Development
Project # 050961
Dear Mr. Thorpe:
January 17, 2006
JAN 18 2007
DWQ-WAR®
Per your letter dated January 3, 2007 we have revised the project description to
include the soils report. Enclosed for your review and approval, please find the following
items:
Two (2) copies of sheets 1, 2 and 3 for the above referenced project.
2. The original and one copy of the Stormwater Permit Application and
required attachments.
3. Two (2) copies of the project description and calculations.
4. Check in the amount $420.00 for the required fee.
If you have any questions, please do not hesitate to call this office at
[phone].
cc: file
David Parks
Sincerely,
S an C. Robeyj, P�.
"'6/
imberly D. amby
Project Manager
P. O. Box 339, Camden, NC 27921

: ,10 MAITL410.,
JAN 18 2007
Inwd fay 17 2001
4924.00
stot..1 Pasquotank
North Carolina Comfy
Real Estate Excise Tax
DWQ-WAR® NKCOUNTY
pAS000TA Filed: Pasquotank County, NC U /0r
Date: May 17th, 2004 Deed number
Time: 04i 19:32 PM Transfer tax $ I y Oa m 'd-ate
DOLLIE J. SUMMEROUR ----
Register of Deeds a
Pasquotank County Assessor's Office
BOOK 804 PAGE 715
NORTH CAROLINA GENERAL WARRANTY DEED
NORTH CAROLINA
PASQUOTANK COUNTY
Prepared by H. T. Mullen, Jr.
Parcel ID: Out of# 8911260487
THIS DEED made this 10" day of May, 2004, by and between JACK 0.
BROTHERS and wife JANICE B. BROTHERS; CONNIE B. QUESENBERRY,
widow; KAYE B. SMITH and husband, DEAN SMITH, Parties of the First Part, and
DAVID 0. PARKS and wife, KATHERINE E. PARKS, Parties of the Second Part of
1252 Florida Road, Elizabeth City, NC 27909;
WITNES ETH:
THAT WHEREAS the said Parties of the First Partin consideration of Ten Dollars
and other good and valuable considerations, paid by the Parties of the Second Part,
receipt of which is hereby acknowledged, has bargained and sold, and by this instrument
does grant, bargain, sell and convey unto the said Parties of the Second Part, their heirs
and assigns, the following described lot or parcel of land situated in Nixonton Township,
Pasquotank County, North Carolina:
**See attached Exhibit A.**
TO HAVE AND TO HOLD the aforementioned tract or parcel of land and all
improvements, privileges and appurtenances thereunto belonging to them the said Parties
of the Second Part, their heirs and assigns in fee simple.
The Parties of the First Part covenant with the Parties of the Second Part that they
are seized of the premises in fee simple, have the right to convey the same in fee simple,
that title is marketable and free and clear of all encumbrances, and that the Parties of the
First P art w ill w arrant a nd d efend t he I itle a gainst the lawful claims o IF a 11 p ersons

BOOK 804 PAGE 716 EXHIBIT "A"
All that certain tract or parcel of land situated in Nixonton Township, Pasquotank County, North Carolina and more particularly
described as follows:
BEGINNING at a point in a ditch on the Southeastern right of way of Blount Road (SR 1135; 60' R/R), which point is situated
approximately 1/2 mile from SR 1101 as measured in a general Southwesterly direction along said Southeastern right of way of
Blount Road; running thence from said point of beginning along said ditch South 380 06' 18" East a distance of I, 105.30 feet to a
point in a 2"a ditch, cornering; running thence along said 20d ditch South 530 27' 53" West a distance of 116.75 feet to a point in a
3'd ditch, cornering; running thence along said 3'd ditch South 380 45' East a distance of 1,700.66 feet to a point in a 4� ditch,
cornering; running thence along said 4d' ditch South 510 29' 02" West a distance of 1, 143.30 feet to a point, cornering; continuing
thence along said 4' ditch South 70 31' 12" East a distance of 732.94 feet to a point in a 5' ditch, cornering; running thence
along said 5' ditch the following calls and distances: South 640 04' 33" West a distance of 194.66 feet to a point, South 810 15'
57" West a distance of 36.72 feet to a point and South 640 30' 49" West a distance of 118.26 feet to a point; running thence South
880 13' 31" West a distance of 51.36 feet to a point; running thence South 720 39' 10" West 52.03 feet to a point; running thence
South 640 58' 58" West a distance of 130.92 feet to a point, cornering; running thence North 830 57' 50" West a distance of
69.73 feet to a point, cornering; running thence South 510 54' 53" West a distance of 64.63 feet to a point; conning thence South
770 26' 56" West a distance of 129.67 feet to a point; running thence South 680 00' 35" West a distance of 114.79 feet to a point;
running thence South 850 07' 20" West a distance of 94.13 feet to a point, cornering; running thence North 510 27' 40" West a
distance of 167.27 feet to a point, cornering; running thence South 590 07' 25" West a distance of 155.21 feet to a point; running
thence South 550 52' 55" West a distance of 175.74 feet to a point, cornering; running thence North 890 35' 23" West a distance
of 97.21 feet to a point; running thence North 480 15' 15" West a distance of 328.44 feet to a point; running thence North 360
23' 52" West a distance of 184.25 feet to a point; running thence North 47o 21' 46" West a distance of 256.85 feet to a point;
running thence North 250 59' 44" West a distance of 99.00 feet to a point, cornering; running thence North 350 42' 22" East a
distance of 197.39 feet to a point; running thence North 150 12' 40" East a distance of 148.28 feet to a point, comenng; running
thence North 40 47' 20" West a distance of 250.50 feet to a point; running thence North 200 47' 20" West a distance of 191.60
feet to a point in a 6e ditch, cornering; running thence along said 6d' ditch North 190 56' 12" East a distance of 157.40 feet to a
point, cornering; running thence South 47o 58' 12" East a distance of 298.62 feet to a concrete monument, cornering; running
thence North 280 04' 21" East a distance of 120.70 feet to a concrete monument, cornering; running thence North 48o 05' 11"
West a distance of 106.9 feet to a Point, cornering; running thence North 180 1 P 04" East a distance of 647, 10 feet to a point in a
7' ditch, cornering; running thence along said Th ditch North 400 38' 18" West a distance of 208.70 feet to a point on the
Southeastern right of way of Blount Road, cornering; running thence along the Southeastern right of way of Blount Road North
180 15' 24" East a distance of 713.41 feet to a point, cornering; running thence and leaving Blount Road South 480 09' 52" Fast a
distance of 205.14 feet to a point, cornering; running thence North 480 52' 58" East a distance of 94.60 feet to a point in an 8'h
ditch, cornering; running thence along said 8' ditch North 380 16' 36" West a distance of 283.15 feet to a point on the
Southeastern right of way of Blount Road, cornering; running thence along said Southeastern right of way of Blount Road the
following calls and distances: North 180 29' 22" East a distance of 483.94 feet to a point, North 200 34' 31"East a distance of
155.80 feet to a point and North 300 37' 19" East a distance of 197.92 feet to a point, cornering; running thence and leaving
Blount Road South 380 56' 31" East a distance of 185.60 feet to a point, cornering; running thence North 400 1 P 41" East a
distance of 120.00 feet to a point, cornering; running thence North 380 56' 31" West a distance of 185.6 feet to a point on the
Southeastern right of way of Blount Road, cornering; running thence along said Southeastern right of way of Blount Road the
following calls and distances: North 480 57' 24" East a distance of 142.23 feet to a point and North 520 18' 09" East a distance of
93.24 feet to a point in a ditch, being the POINT AND PLACE OF BEGINNING, containing a total of 147.11 acres.
Being the same tract or parcel of land shown and delineated on that certain plat prepared by S. Elmo Williams, P.L.S., under date
of December 16, 2003, entitled in part `Jack 0. Brothers, Connie B. Quesenberry, & Kaye B. Smith," recorded in Map Book 34,
Page 6, Pasquotank County Registry.
f..\doc\darrell\descriptiom\parks-brothers

whomsoever.
BOOK 804 PAGE 717
IN WITNESS WHEREOF, the Parties of the First Part have hereunto set their
hands and seals, the day and year first above written. �pQ—
Z9_wr� 4�sa (SEAL)
// JACK 0. BROTHERS
�. �/IQ (��(SEAL)
ICE B. BROTHERS
lgk'_ (SEAL)
CONNIE B. Q ESENBERR widow
(SEAL)
KA S ITF
(SEAL)
DEAN WPM
H
STATE OF NORTH CAROLINA
COUNTY OF PASQUOTANK
I, the undersigned Notary Public, do hereby certify that JACK 0. BROTHERS and
wife, JANICE B. BROTHERS, personally appeared before me this day and
acknowledged the due execution of the foregoing instrument.
Witness my hand and notarial seal, this the W day -of May, 2004.
Mom
My Coammission Expires: ; • No T S q •. <
a�-oa = y••
USLIG 0'
STATE OF Sc
(� ^kk F4 •........ y.
COUNTY OF y't+e-h� 00UIN1
I, the undersigned Notary Public, do hereby certify that CONNIE B.
QUESENBERRY, widow, personally appeared before me this day and acknowledged the
due execution of the foregoing instrument.
Witness my hand and nota 'al seal, this the day of May, 2004.
N taryPublic

5-W
BOOK 604 PAGE 718
STATEOF FipQlnA
COUNTY OF Sinn I JCiS
1, the undersigned Notary Public, do hereby certify that KAYE B. SMITH and
husband, DEAN SMITH, personally appeared before me this day and acknowledged the
due execution of the foregoing instrument.
notarial s 11 this the day of May, 2004.
Notary Public
My Cat 0 12042
EMARm 2005
BondEd Thqu rngy Puhlir
NORTH CAROLINA
PASQUOTANK COUNTY
The foregoing or annexed certificate of
a Notary
Public of the County of , State ofNorth Carolina, is certified to be correct.
This the _ day of May, 2004.
NORTH CAROLINA : PASQUOTANK COUNTY
Register of Deeds
Deputy/Assistant
The foregoing or annexed certificates of K. Alison Bray, a Notary Public of
Camden County, State of North Carolina, Jessica A. Rodriguez, a Notary Public of
. the State of South Carolina, and Ileana Cruz, a Notary Public of the State of
Florida, are certified to be correct. This instrument duly filed and recorded in
this office at the date and time and in the Book and Page as shown on the first
page hereof.
.y6161lJUIli By �.
Reg ster of I
eeds eputy

y
Attachment to WET DE'ITNTION BASIN SUPPLI, MENT
For Park Land Development
Detention Pond A — Drainase Area I
e. Pond has been designed for 90% TSS removal.
k. The pond will be located entirely on the owner's property.
Detention Pond B — Drainase Area 2
e. Pond has been designed for 90% TSS removal.
k. The pond will be located entirely on the owner's property
REcEivEo
JAN 18 2007
®WQ-WAR®

PROJECT DESCRIPTION
Parks Land Development
JAN 18 2007
Pasquotank County - North Carolina DWQ-WARQ
December l 1, 2006 Revised January 17, 2007
Parks Land Development is proposing to construct a new facility on
approximately 5.7 acres of a 147 acre tract of land on Blount Road. It is currently vacant
and is zoned Agricultural.
Development will include construction of three (3) new buildings, two (2) parking
lots, a gravel storage/equipmcnl yard, two (2) septic systems, two (2) storm water
detention ponds with required drainage ditches, an underground piping system and the
installation of required landscaping.
The proposed buildings will contribute 18,000 sf of impervious area. The
parking, gravel equipment/storage yard, and drives will contribute another 116,076 sf.
The concrete sidewalk will be 265 sf. The maximum impervious area will be 3.08 acres
or 54% of the site.
Drainage Area 1 contains 1.51 acres and consists of the front of the site to the
center ridge of the proposed office building. This drainage area will contain 1,000 sf of
building. It also contains 13,064 sf of pavement and 265 sf of sidewalk. Runoff from
the western half of the office building will sheet flow across the grassed yard to a swale
that will route the runoff into a front swale which drains into detention pond A, which is
designed for 90% TSS removal. The front parking lot will sheet flow across the parking
lot to the grassed yard and into the front Swale. The entrance road will sheet flow into
two (2) swales on either side of the road which will also drain to the front swale that
drains to detention pond A. All swales will have 3:1 side slopes. The soil type in
Drainage Area 1 is Roanoke. On January 16, 20007, a soil boring was made on the site in
the area of the proposed detention pond. The existing elevation at the soil boring location
is approximately 10.75'. From 0-12" was topsoil, from 12" to 36" the soil was a clay
with some modeling. At 36", some fine sand was present in the clay, and at 48" tite soil
became loose wet sand. The clay content corresponds to the soil classification of
Roanoke as shown on the Pasquotank County Soils Map. Coloration indicated a seasonal
high water table at approximately 8.25'. Permanent pool has been set at 8.50'. Given the
high water table and lack of permeability, we feel that wet detention will be the most
appropriate method of slormwater treatment for this site.
Drainage Area 2 contains 4.06 acres and consists of the eastern side of the office
building, the shop, storage shed, second paved parking area, a portion of the entrance road
and the gravel storage/equipment yard. This drainage area will contain 17,000 sf of
buildings, 20,372 sf of pavement, and 82,640 sf of gravel storage/equipment yard. The

runoff from the paved parking area and entrance road will sheet flow across the pavement
to drop inlets. It will then be routed, through an underground pipe system, which
discharges into detention pond B which is also designed for 90% TSS removal. The
gravel storage/equipment yard runoff will sheet flow across the gravel to drop inlets. It
will then be routed through the same underground pipe system as the paved parking area
and discharge into detention pond B. The soil types in Drainage Area 2 are Roanoke and
Wahee. On January 16, 20007, a soil baring was made on the site in the area of the
proposed detention pond. The existing elevation at the soil boring location is
approximately 9.5'. From 0-2" was topsoil, from 2" to 36" the soil was a clay with some
modeling. At 36", some fine sand was present in the clay, and at 48" the soil became
loose wet sand. The clay content corresponds to the soil classification of Roanoke as
shown on the Pasquotank County Soils Map. Coloration indicated a seasonal high water
table at approximately 30-36" deep, or elevation 6.5-7'. Free water in the adjacent ditch
was at approximately elevation 6.75'. Permanent pool has been set at 7.00'. Given the
high water table and lack of permeability, we feel that wet detention will be the most
appropriate method of slormwater treatment for this site.
Drainage Area 3 contains the remaining 0.17 acres adjacent to the existing ditches
which will continue to drain to the existing ditches. It will not contain impervious areas.
Rational method analysis indicates a pre development peak runoff of 10.52 cfs.
The post development runoff for Drainage Area I is 4.76 cfs into Detention Pond A and a
peak pond discharge of 111 cfs. The post development runoff for Drainage Area 2 is
20.46 cfs into Detention Pond B and a peak pond discharge of 5.44 cfs. Based on these
calculations, post development discharge during a 10 year storm will be 6.55 cfs
The disturbed area for this development will not exceed 6.53 acres. Limits of
disturbance have been shown on the plans.

,
PERMANENT POOL DETENTION PONDS p+ EI �p p�® Hyman & Robcy, PC
DESIGN OF POND �MVE® 150-A Hwy 158 East
Camden, NC 27921
Parks Land Development - Pond A JAN 18 2007 (252)-335-1888
10 Yr, 24 Hr Stonn 12/21/06
DETENTION POND - Pond A (Front Pond) DWQ-W fl D® _
SA/DA PERCENTAGES FOR 90% TSS REMOVAL WITHOUT VEGETATIVE FILTER
% IMPRV 3.0 FT 3.5 FT
4.0 FI'
4.5 FT
5.0 FT
5.5 FT
6.0 FI'
6.5 FT 7.0 FI'
10% 1.3 1.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
20% 2.4 2.0
1.8
1.7
1.5
1.4
1.2
1.0
0.9
30% 3.5 3.0
2.7
2.5
2.2
1.9
1.6
1.3
1.1
40% 4.5 4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
50% 5.6 5.0
4.3
3.9
3.5
3.1
2.7
2.3
19
60% 7.0 6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
70% 8.1 7.0
6.0
5.5
5.0
4.5
3.9
3.4
2.9
80% 9.4 8.0
7.0
6.4
5.7
5.2
4.6
4.0
3.4
90% 10.7 9.0
7.9
7.2
6.5
5.9
5.2
4.6
39
100% 12.0 10.0
8.8
9.1
7.3
6.6
5.8
5.1
4.3
WATERSHED AREA:
1.51
ACRES
WATERSHED % IMPERVIOUS:
20
%a
PERMANENT POOL ELEVATION:
8.5
177'
DESIGN PERMANENT POOL DEPTH:
4
FT
SA/DA PERCENTAGE FACTOR:
1.8
%
(FROM ABOVE
TAIL I.E.TAKENFROM
DESIGN OF STORM
WATER
'
CONI ROL 12ACELITI
S WORKSHOP
MANUAL- PENC 19RRI
POND SURFACE AREA REQ-D:
1182
SF
FOREBAY AREA:
355
SF
AT WIDTH = 0.33 LENGTH,
WIDTH =
19.8478
LF
(BASED
UPON MINIMUM
SURFACE
AREA)
LENGTH =
59.5433
LF .
Use these dimensions:
WIDTH
33.61
LF
LENGTH
132.61
LF
VOLUME OF 1" RAINFALL
AREA OF ROOFS: 0.02 AC
AREA OF PARKING/CONCRETE: 0.31 AC
AREA OF GREEN AREAS: 1,18 AC
VOLUME OF RUNOFF 1993.96 CF
STORAGE DEPTH FOR MINIMUM AREA =
ELEVATION OF I" RAINFALL = 8.95
Normal Pool Elevation 8.5
VOL (CF)=1(ROOF'1.0)+(PARKINC•.95)+(GRASS"0.2)1'43,560112
0.45 1-7
f 1l SEAL _
8550 =
CIRIVOINEEP.� ,F4* ul HOB�y\\O``�
Page I

t
Page 2
DRAWDOWN - WATER QUALITY
Q(2 DAYS) = 0.0 1154 CFS
Q(5 DAYS) = 0.00462 CFS
I" RUNOFF STAGE 0.45 Pr
DEPTH OF DRAWDOWN DEVICE BELOW OUTLET 1.5 FT
I " RUNOFF OUTLET DEVICE: 0.80645 INCH D I A HOLE
DIAMETER OF }TOLE TO USE: 0.875 INCH DIAMETER
I" STORM RUNOFF DRAWDOWN TIME 2.42701 DAYS
INFLOW HYDROGRAPI-I
Return Year Storm 10 Yr
Qp = Peak Discharge = 5 cis
Te = Time of Concentration =
Calculation of Tp (Time to Peak)
From SCS NEH 4, page 15-7 Eqn. 15.4
A=(Q/(Cd *SQRT(2gh)) j * 144
Rad.=SQI2'I'(A/Pl)
Dia.=2*Rad.
5 min
Lag Time (L) = (IA0.8*(S+l)A0.7)/(1900*YA0.5) for L in Hrs
where: I = hydraulic length of watershed (it)
S = (1000/CN)-10
CN = approximately same CN from TR-55
Y = avg. watershed land slope in %
S = (1000/CN)-10 = 2.65823
L= 0.16639 hrs
From SCS NEH 4, page 16-7 Eqn. 16.7
Tp=D/2+L
where : D = unit of excess duration rainfall (hrs)
L = Lag Tinre (hrs)
From SCS NE114 , page I6-8 Eqn. 16.12
D = 0.133 tc
where: 'rc = Timc of Concentration (hrs) - (See Tr-55 Printout)
THEREFORE: D = 0.01108 hrs
Tp=
0.17193
his =
10.3161
min
Volume under hlydrograph
= 1.39 *
Qp * Tp =
4301.8
Cubic Feet
361
2.65823
79
0.76
f3 SEAL =
10550
'F�'OINEEP.
1
44 C.
1111r,11 t t ll 11100\\\

a
Page 3
Inflow I-Iydrograph
SCS Dimensionless Hydrograph
Time Discharge Time Discharge Volume
Ratio Ratio fir cfs of
0.00
0.00
0.00
0.10
0.03
0.02
0.20
0.10
0.03
0.30
0.19
0.05
0.40
0.31
0.07
0.50
0.47
0.09
0.60
0.66
0.10
0.70
0.82
0.12
0.80
0.93
0.14
0.90
0.99
0.15
1.00
1.00
0.17
1.10
0.99
0.19
1.20
0.93
0.21
1.30
0.86
0.22
1.40
0.78
0.24
1.50
0.68
0.26
1.60
0.56
0.28
1.70
0.46
0.29
1.80
0.39
0.31
190
0.33
0.33
2.00
0.28
0.34
2.20
0.21
0.38
2.40
0.15
0.41
2.60
0.11
0.45
2.80
0.08
0.48
3.00
0.06
0.52
3.20
0.04
0.55
3.40
0.03
0.58
3.60
0.02
0.62
3.80
0.02
0.65
4.00
0.01
0.69
4.50
0.01
0.77
5.00
0.00
0.86
Volume under hydrograph =
Based upon runoff volume = 4301.8 cf
0
0 9
1 31
1 59
2 96
2 145
3 204
4 254
5 288
5 306
5 309
5 306
5 288
4 266
4 241
3 210
3 173
2 142
2 121
2 102
1 87
1 128
1 91
1 66
0 48
0 34
0 25
0 18
0 13
0 9
0 7
0 8
0 0
4086 cf
Depth req'd for minimum
sC' lrovr•.•
' I tEAL
18550
't
•'•.(�OINEEP'••
�FAV C. RO'bc' �
N11111 III I11100

Page 5
STAGE STORAGE FUNCTION OF 13OND
(FOR RECTANGULER DETENTION POND ONLY)
Minimum surface area taken at normal water level
BASIN AREA INCR ACCUM
VOLUME VOLUME STAGE In s
S Z
sf cf cf ft
Pond Side Slope (M) =
In Z 'Z est Elevation
4458
0
0
0 Surface area at normal pool
8.5
4965
2356
2356
0.5
7.76
-0.69
0.52
9
5491
2614
4970
1
8.51
0.00
0.99
9.5
6035
2881
7851
1.5
8.97
0.41
1.47
10
6596
3158
11009
2
9.31
0.69
1.97
10.5
7176
3443
14452
2.5
9.58
0.92
2.50
11
7774
3737
18189
3
9.81
1.10
3.05
11.5
8389
4041
22230
3.5
10.01
1.25
3.63
12
9023
4353
26583
4
10.19
1.39
4.24
12.5
9675
4674
31258
4.5
10.35
1.50
4.88
13
10344
5005
36262
5
10.50
1.61
5.56
13.5
Regression
Output:
Constant
9.34346
Ks = S/ZN)
= 5028.517
Sid Err of Y Est
0.00969
R Squared
0.99962
No. of Observations
7
Degrees of Freedom
5
X Coefficient(s) L 15215 = b
Std Err of Coef. 0.01009
FOR VERTICAL SIDED DETENTION POND SET b=0, AND Ks = SURFACE AREA (SF)
STAGE DISCHARGE
(FOR RISER/BARRELL SPILLWAY
W EMERGENCY WEIR)
RISER
Dr
= I8
Riser Dia. (in)
Elop
= 20.00
Elev. Top Riser (ft)
Cwr
= 3.33
Riser weir cocff
Cdr
0.60
Riser orifice coeff
H I n
5
Number of Holes
Hid
= 2
Hole Dia. (in)
CI-11
= 20.00
Elev. Holes (1)
H2n
= 5
Number of Holes '
1-12d
= 2
Hole Dia. (in)
EH2
= 20.00
Elev. Holes (2)
H3n
= 0
Number of Boles
I-13d
= 2
I loleDia. (in)
EH3
= 20.00
Elev. Holes (3)
13ARREL:
Db
= 15
Barrel Dia. (in)
Einv
20.00
Elev Invert Barrel (ft)
9.47
9
_ : is �?f'� •` 9
l�P;c' �*- �NEEP ; i:•• ``�
i i, CJI RoBvt \\\\\p\\p
Banell Adjustment factor

Page 6
Cdb = 0.60 Barrel orifice coeff
�eFq( Sri =
im o
'•2
i N�9 ER
/ i�//HOBEI \\\\ `\

Page 7
EMERGENCY WEIR
Cw
3
Weir coeff
Ecr
=
8.95
Elev weir coeff (ft)
Lw
=
3
Weir Length (ft)
Riser
Riser
3
Elevation
Hole
Hole
Hole
Riser Riser
Barrel
Principal
Emergey
(1)
(2)
(3)
(weir) (orifice)
Spillway
Weir
8.50
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
9.50
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.50
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.52
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.53
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.56
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.60
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.65
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.70
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.76
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.83
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.89
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.95
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
9.01
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.1
9.06
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.3
9.10
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.5
9.13
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.7
9.15
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.8
9.17
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.9
9.18
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.0
9.19
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.1
9.20
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.1
9.20
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.1
9.19
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.0
9.18
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.0
9.16
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.9
9.15
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.8
9.14
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.7
9.12
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.6
9.11
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.6
9.10
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.5
9.07
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.4
9.05
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.3
c)' CAL
gesso
•dry i _
F, 41 C. ROSO
//lllllll I I I II���\\

Page 8
ROUTING OF INFLOW HYDROGRAPH THROUGH POND AND OUTFLOW DEVICE
Total
Riser
Riser
Riser
Barrel
I:merg
Time
Inflow
Storage
Stage
Outflow
Holes
(weir)
(orifice)
Spillway
t(hr)
cfs
of
Elevation
cfs
(1+2+3)
cfs
cfs
cfs
cfs
cfs
0.000
0
0
8.50
0.00
0.00
0.00
0.00
0.00
0.00
0.017
0
0
8.50
0.00
0.00
0.00
0.00
0.00
0.00
0.034
1
9.28447
8.50
0.00
0.00
0.00
0.00
0.00
0.00
0.052
1
40.2327
8.52
0.00
0.00
0.00
0.00
0.00
0.00
0.069
2
99.0343
8.53
0.00
0.00
0.00
0.00
0.00
0.00
0.086
2
194.974
8.56
0.00
0.00
0.00
0.00
0.00
0.00
0.103
3
340.431
8.60
0.00
0.00
0.00
0.00
0.00
0.00
0.120
4
544.689
8.65
0.00
0.00
0.00
0.00
0.00
0.00
0.138
5
798.464
8.70
0.00
0.00
0.00
0.00
0.00
0.00
0.155
5
1086.28
8.76
0.00
0.00
0.00
0.00
0.00
0.00
0.172
5
1392.67
8.83
0.00
0.00
0.00
0.00
0.00
0.00
0.189
5
1702.15
8.89
0.00
0.00
0.00
0.00
0.00
0.00
0.206
5
2008.54
8.95
0.00
0.00
0.00
0.00
0.00
0.00
0.224
4
2296.34
9.01
0.12
0.00
0.00
0.00
0.00
0.12
0.241
4
2555.02
9.06
0.31
0.00
0.00
0.00
0.00
0.31
0.258
3
2777.3
9.10
0.51
0.00
0.00
0.00
0.00
0.51
0.275
3
2956.23
9.13
0.69
0.00
0.00
0.00
0.00
0.69
0.292
2
3086.78
9.15
0.83
0.00
0.00
0.00
0.00
0.83
0.309
2
3177.55
9.17
0.94
0.00
0.00
0.00
0.00
0.94
0.327
2
3240.22
9.18
1.01
0.00
0.00
0.00
0.00
1.01
0.344
I
3279.74
9.19
1.06
0.00
0.00
0.00
0.00
1.06
0.379
1
3321.98
9.20
1.11
0.00
0.00
0.00
0.00
1.11
0.413
1
3312.67
9.20
1.10
0.00
0.00
0.00
0.00
1.10
0.447
1
3267.63
9.19
1.04
0.00
0.00
0.00
0.00
1.04
0.481
0
3204.59
9.18
0.97
0.00
0.00
0.00
0.00
0.97
0.516
0
3132.27
9.16
0.89
0.00
0.00
0.00
0.00
0.89
0.550
0
3056.73
9.15
0.80
0.00
0.00
0.00
0.00
0.80
0.585
0
2982.45
9.14
0.72
0.00
0.00
0.00
0.00
0.72
0.619
0
2911.41
9.12
0.64
0.00
0.00
0.00
0.00
0.64
0.653
0
2844.72
9.11
0.58
0.00
0.00
0.00
0.00
0.58
0.688
0
2782.76
9.10
0.51
0.00
0.00
0.00
0.00
0.51
0.774
0
2640.6
9.07
0.38
0.00
0.00
0.00
0.00
0.38
0.860
0
2530.01
9.05
0.29
0.00
0.00
0.00
0.00
0.29
9.1978 = maximum stage elevation
I.I 102 = maxinumt discharge
�EAt =_
185J0 -
FNetNEE?
sFgN C. VmI� `\

Page I
Parks Land Development - Pond A
Pasquotank County
10yrSTORM
r 0
5
1
N 4
INFLOW (cfs)
o) 3
1, ..... m .,
, OUTFLOW (cfs)
s
0 2
4 4
.'
,oyi`N
oo.
1p
0.000 0.200 0.400
0.600 0.800 1.000
Time (hrs)

POND A CALCULATIONS
AREA
POND CALCULATIONS
FOR
Parks Land Devleopment - 050961 POND.xIs
PERMANENT POOL SURFACE AREA
MAIN BASIN SURFACE AREA
FOREBAY SURFACE AREA
AREA AT EDGE OF MAIN BASIN SHELF
AREA OF MAIN BASIN BOTTOM
AREA AT EDGE OF FOREBAY SHELF
AREA OF FOREBAY BOTTOM
SURFACE AREA AT 1" STORAGE
ELEVATIONS
PP ELEVATION
ELEVATION AT EDGE OF MAIN BASIN SHELF
ELEVATION OF MAIN BASIN BOTTOM
ELEVATION AT EDGE OF FOREBAY SHELF
ELEVATION OF FOREBAY BOTTOM
ELEVATION OF 1"STORAGE
VOLUME CALCULATIONS
F2
1182 4.457.59
3,282.53
1,175.06
1,398.82
338.87
325.09
105.06
4,925.54
F
6.83
4.50
6.83
5.50
8.95
F3
MAIN BASIN VOLUME
5,933.34
FOREBAY VOLUME
1,538.68
PERMANENT POOL VOLUME
7,472.01
FOREBAY PERCENTAGE OF TOTAL PERMANENT POOL VOLUME
20.59%
TEMP. STORAGE VOLUME (1" RUNOFF)
2,098.62
TEMPORARY STORAGE OFFSET
SLOPE (EX: IF 3:1 ENTER 3) 3.00
OFFSET FROM PP 1.34
BASIN DIAGRAM CALC
MAIN POND
SEDIMENT REMOVAL ELEVATION
PP DEPTH READS ... SEDIMENT SHALL BE REMOVED
FOREBAY
SEDIMENT REMOVAL ELEVATION
PP DEPTH READS ... SEDIMENT SHALL BE REMOVED
FILE LOCATION. S \Hymdn 6 RWey 95a050961 - Pan, Land DandweemnNExceOPa,Ns Land DeviNlm,enl 05096, POND,le
TAD - POND CALCA
InI12C0612.57 PM
i IV§EAL
1B160 -
sFgh C. Rae�� o`\\
"glllll JJW N\
5.50
3.00
6.25
2.25
Pa091011

'.PERMANENT POOL DETENTION PONDS
Hyman & Robey, PC
DESIGN OF POND
tl YYRR
150-A Hwy 158 East
3�tSmidtTsdag�®
Camden, NC 27921
Parks Land Development - Pond B
(252)-335-1888
10 Yr, 24 HE Storm
JAN 18 2007
12/21/06
DETENTION POND - Pond B (Back Pond)
DVIIQ-1NAR®
SA/DA PERCENTAGES FOR 90% TSS REMOVAL WITHOUT VEGETATIVE
FILTER
% IMPRV 3.0 FT 3.5 FT 4.0 FT
4.5 FT 5.0 FT 5.5 FT
6.0 FT 6.5 F'T 7.0 FT
10% 1.3 1.0 0.8
0.7 0.6 0.5
0.4 0.3
0.2
20% 2.4 2.0 1.8
1.7 1.5 1.4
1.2 1.0
0.9
30% 3.5 3.0 2.7
2.5 2.2 1.9
1.6 1.3
L l
40% 4.5 4.0 3.5
3.1 2.9 2.5
2.1 1.8
1.4
50% 5.6 5.0 4.3
3.9 3.5 3.1
2.7 2.3
1.9
60% 7.0 6.0 5.3
4.8 4.3 3.9
3.4 2.9
2.4
70% 8.1 _ 7.0 6.0
5.5 5.0 4.5
3.9 3.4
2.9
80% 9.4 8.0 7.0
6.4 5.7 5.2
4.6 4.0
3.4
90% 10.7 9.0 7.9
7.2 6.5 5.9
5.2 4.6
3.9
100% 12.0 10.0 8.8
8.1 7.3 6.6
5.9 5.1
4.3
WATERSHED AREA:
4.06 ACRES
WATERSHED % IMPERVIOUS:
70
PERMANENT POOL ELEVATION:
7 FT
DESIGN PERMANENT POOL DEPTH:
4 FT
SA/DA PERCENTAGE FACTOR:
6 %
(FROMAROVGTARLE
TAKEN FROM DESIGN OFSIORM
WATER
CONIRol, FACILITIES
WORKSHOP MANUAL -PENC 1998)
POND SURFACE AREA REQD:
10620 SF
FOREBAY AREA:
3186 SF
AT WIDTH = 0.33 LENGTH,
WIDTH = 59.4968
LF (BASED UPON MINIMUM
SURFACE AREA)
LENGTH = 178.491
LF
Use these dimensions: WIDTH
56.23 LF
LENGTH
198 LF
VOLUME OF 1" RAINFALL
AREA OF ROOFS: 0.39 AC
AREA OF PARKING/CONCRETE: 2.36 AC
AREA OF GREEN AREAS: 1.31 AC
VOLUME OF RUNOFF 10520.8 CF
STORAGE DEPTH FOR MINIMUM AREA =
ELEVATION OF I"RAINFALL = 7.94
Normal Pool Elevation
VOL (07= OMI'LO)+(PAR KING'.95)+(G RASS'0.2)1
0.94 1'r
7
Page I
QN JAC
o ; ySEAL
10550 _
• •FA'QINEEe.'.•
&4�� CI I11�10�y \\\\\\\

Pave 2
DRAWDOWN - WATER QUALITY
Q(2 DAYS) = 0.06088 CFS
Q(5 DAYS) = 0.02435 CFS
1" RUNOFF STAGE 0.94 FT
DEPTH OF DRAWDOWN DEVICE BELOW OUTLET 1.5 F l'
I" RUNOFF OUTLET DEVICE: 1.53656 INCH DIA HOLE
DIAMETER OE HOLE TO USE: 1.75 INCH DIAMETER
I" STORM RUNOFF DRAWDOWN TIME 2.2027 DAYS
INFLOW HYDROGRAPH
Return Year Slornt 10 Yr
Qp = Peak Discharge = 21 cfs
Tc = Time of Concentiadon =
Calculation of Tp (Time to Peak)
Front SCS NEH 4 , page 15-7 Eyn. 15.4
A=(Q/(Cd*SQR'P(2gh))] * 144
Rad.=SQRT(A/PI)
Dia.=2*Rad.
5 min
Lag Time (L) = (IA0.8*(S+I)A0.7)/(1900*YM.5) for L in Eli
where: I = hydraulic length of watershed (f )
S = (I 000/CN)-10
CN = approximately same CN from TR-55
Y = avg. watershed land slope in %
S= (1000/CN)-10 = 1.1 I I I I
L= 0.21674 firs
From SCS NEH 4 , page I6-7 Eyn. 16.7
Tp=D/2+L
where: D = unit of excess duration rainfall (firs)
L = Lag Time (firs)
From SCS NEH 4, page 16-8 Eyn. 16.12
D=0.1331c
where: Te = Tinte of Concentration (firs) - (Sce Tr-55 Printout)
THEREFORE: D = 0.01108 firs
Tp= 0.22229 firs = 13.3372 min
Volume under Hydrograph =- 1.39 * Qp *'1'p = 23358.8 Cubic Feet
772
= I.IIIII
90
0.7
e 1rotiy�•.•
:•I%' ZEAL
18550
�i 'F4'OINBEP.: •• ��
\\\\\\��

Page 3
Inflow Hydrograph
SCS Dimensionless Flydrograph
Time
Discharge Time
Discharge
Volume
Ratio
Ratio
hr
ets
cf
0.00
0.00
0.00
0
0.10
0.03
0.02
1
50
0.20
0.10
0.04
2
168
0.30
0.19
0.07
4
319
0.40
0.31
0.09
7
521
0.50
0A7
0.11
10
790
0.60
0.66
0.13
14
1 109
0.70
0.82
0.16
17
1378
0.80
0.93
0.18
20
1563
0.90
0.99
0.20
21
1664
1.00
1.00
0.22
21
1680
1.10
0.99
0.24
21
1664
1.20
0.93
0.27
20
1563
1.30
0.86
0.29
18
1445
1.40
0.78
0.31
16
1311
1.50
0.68
0.33
14
1143
1.60
0.56
0.36
12
941
1.70
0.46
0.38
10
773
1.80
0.39
0.40
8
655
1.90
0.33
0.42
7
555
2.00
0.28
0.44
6
471
2.20
0.21
0.49
4
696
2.40
0.15
0.53
3
494
2.60
0.11
0.58
2
360
2.80
0.08
0.62
2
259
3.00
0.06
0.67
1
185
3.20
0.04
0.71
1
134
3.40
0.03
0.76
1
97
3.60
0.02
0.80
0
71
3.80
0.02
0.84
0
50
4.00
0.01
0.89
0
37
4.50
0.01
1.00
0
42
5.00
0.00
1.11
0
0
Volume under
hydrograph
=
22187 cf
f
ISEAL =
- 18550
' ...
�
Cfl00E
�i/// /Ntil\\\\���
Based upon runoff volume = 23358.8 cf Depth req'd fur minimum area = 2.09794

Page 5
STAGE STORAGE FUNCTION OF POND
(FOR RECTANGULER DETENTION POND ONLY)
Minimum surface area taken at nonnal water level
13ASIN AREA INCR ACCUM
VOLUME VOLUME STAGE In s
S Z
sf cf cf ft
Pond Side Slope (M) =
In Z Z est Elevation
11134
0
0
0
Surface area at normal pool
7
11906
5760
5760
0.5
8.66
-0.69
0.55
7.5
12696
6150
11910
1
9.39
0.00
1.04
8
13503
6550
18460
1.5
9.82
0.41
1.52
8.5
14329
6958
25418
2
10.14
0.69
2.00
9
15173
7375
32793
2.5
10.40
0.92
2.50
9.5
16034
7802
40595
3
10.61
1.10
3.01
10
16914
8237
48832
3.5
10.80
1.25
3.53
10.5
17812
8681
57514
4
10.96
1.39
4.07
II
18727
9135
66649
4.5
11.11
1.50
4.63
11.5
19661
9597
76246
5
11.24
1.61
5.20
12
Regression
Output:
Constant
9.34346
Ks = S/Z^b
= 11410.41
Std Err of Y Est
0.00969
R Squared
0.99962
No. of Observations
7
Degrees of Freedom
5
X Coefficient(s) 1.15215 = b
Std Err of Coef. 0.01009
FOR VERTICAL SIDED DETENTION POND SET b=0, AND Ks = SURFACE AREA (SF)
STAGE DISCHARGE
(FOR RISER/BARRELL SPILLWAY W EMERGENCY WEIR)
RISER
Dr =
18
Riser Dia. (in)
Etop =
20.00
Elev. Top Riser (ft)
Cwr =
3.33
Riser weir coeff
Cdr =
0.60
Riser orifice coeff
H I n
5
Number of Boles
Hid =
2
Hole Dia. (in)
EIII =
20.00
Elev. Holes (1)
1-12n =
5
Number ofloles
1-12d =
2
Hole Dia. (in)
EH2 =
20.00
Elev. Holes (2)
Han =
0
Number of Holes
H3d =
2
Hole Dia. (in)
EH3 =
20.00
Elev. Holes (3)
BARREL:
Db =
15
Barrel Dia. (in)
Finv =
20.00
Elev Invert Barrel (ft)
Bartell Adjustment Factor
3

Cdh = 0.60 Barrel orifice coeff
Page 6
SEAL
lasso
• • �FN�INEEQ:•' • \�

Page 7
EMERGLNCY WHIR
Cw
3
Weircoeff
Eer
=
7.94
Elev weir coeff (f0
Lw
5
Weir Length (ft)
Riser
Riser
Riser
Elevation
Hole
Hole
Hole
Riser Riser
Barrel
Principal
Emergcy
----------
(1)
-------
(2)
(3)
(weir) (orifice)
Spillway
Weir
7.00
0.0
-- --- --
0.0
-------
0.0
--------------
0.0
0.0
-------
0.0
-------
0.00
-------
0.0
7.00
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.01
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.03
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.07
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.13
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.21
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.31
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.43
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.56
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.70
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.83
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
7.96
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.0
8.08
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.8
8.18
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.8
8.27
0.0
0.0
0.0
0.0
0.0
0.0
0.00
2.8
8.34
0.0
0.0
0.0
0.0
0.0
0.0
0.00
3.7
8.38
0.0
0.0
0.0
0.0
0.0
0.0
0.00
4.4
8.41
0.0
0.0
0.0
0.0
0.0
0.0
0.00
4.9
8.43
0.0
0.0
0.0
0.0
0.0
0.0
0.00
5.2
8.44
0.0
0.0
0.0
0.0
0.0
0.0
0.00
5.3
8.45
0.0
0.0
0.0
0.0
0.0
0.0
0.00
5.4
8.44
0.0
0.0
0.0
0.0
0.0
0.0
0.00
5.2
8.41
0.0
0.0
0.0
0.0
0.0
0.0
0.00
4.8
8.38
0.0
0.0
0.0
0.0
0.0
0.0
0.00
4.4
8.35
0.0
0.0
0.0
0.0
0.0
0.0
0.00
3.9
8.32
0.0
0.0
0.0
0.0
0.0
0.0
0.00
3.5
8.29
0.0
0.0
0.0
0.0
0.0
0.0
0.00
3.0
8.26
0.0
0.0
0.0
0.0
0.0
0.0
0.00
2.7
8.23
0.0
0.0
0.0
0.0
0.0
0.0
0.00
2.4
8.21
0.0
0.0
0.0
0.0
0.0
0.0
0.00
2.1
8.15
0.0
0.0
0.0
0.0
0.0
0.0
0.00
1.5/.
8.11
0.0
0.0
0.0
0.0
0.0
0.0
0.00
I.
'% SEAL
- 1D550 -
i OINE
N

page 8
ROUTING OF INFLOW HYDROGRAPH THROUGH POND AND OUTFLOW DEVICE
Total
Riser
Riser
Riser
Barrel
Emerg
Time
Inflow
Storage
Stage
Outflow
Holes
(weir)
(orifice)
Spillway
t(hr)
cfs
of
Elevation
cfs
(1+2+3)
cfs
cfs
cfs
cfs
cfs
0.000
0
0
7.00
0.00
0.00
0.00
0.00
0.00
0.00
0.022
1
0
7.00
0.00
0.00
0.00
0.00
0.00
0.00
0.044
2
50.4146
7.01
0.00
0.00
0.00
0.00
0.00
0.00
0.067
4
218.463
7.03
0.00
0.00
0.00
0.00
0.00
0.00
0.089
7
537,756
7.07
0.00
0.00
0.00
0.00
0.00.
0.00
0.111
10
1058.71
7.13
0.00
0.00
0.00
0.00
0.00
0.00
0.133
14
1848.54
7.21
0.00
0.00
0.00
0.00
0.00
0.00
0.156
17
2957.66
7.31
0.00
0.00
0.00
0.00
0.00
0.00
0.178
20
4335.66
7.43
0.00
0.00
0.00
0.00
0.00
0.00
0.200
21
5898.51
7.56
0.00
0.00
0.00
0.00
0.00
0.00
0.222
21
7562.19
7.70
0.00
0.00
0.00
0.00
0.00
0.00
0.245
21
9242.68
7.83
0.00
0.00
0.00
0.00
0.00
0.00
0.267
20
10906.4
7.96
0.05
0.00
0.00
0.00
0.00
0.05
0.289
18
12465.4
8.08
0.78
0.00
0.00
0.00
0.00
0.79
0.311
16
13847.9
8.18
1.80
0.00
0.00
0.00
0.00
1.80
0.333
14
15014.9
8.27
2.83
0.00
0.00
0.00
0.00
2.83
0.356
12
15931.1
8.34
3.74
0.00
0.00
0.00
0.00
3.74
0.378
10
16573
8.38
4.42
0.00
0.00
0.00
0.00
4.42
0.400
8
16992.6
8.41
4.88
0.00
0.00
0.00
0.00
4.88
0.422
7
17257.6
8.43
5.18
. 0.00
0.00
0.00
0.00
5.18
0.445
6
17397.9
8.44
5.34
0.00
0.00
0.00
0.00
5.34
0.489
4
17484.8
8.45
5.44
0.00
0.00
0.00
0.00
5.44
0.533
3
17310.3
8.44
5.24
0.00
0.00
0.00
0.00
5.24
0.578
2
16966.2
8.41
4.85
0.00
0.00
0.00
0.00
4.85
0.622
2
16549.8
8.38
4.39
0.00
0.00
0.00
0.00
4.39
0.667
1
16105.7
8.35
3.92
0.00
0.00
0.00
0.00
3.92
0.711
1
15663.4
8.32
3.47
0.00
0.00
0.00
0.00
3.47
0.756
1
15243.2
8.29
3.05
0.00
0.00
0.00
0.00
3.05
0.800
0
14852.6
8.26
2.68
0.00
0.00
0.00
0.00
2.68
0.845
0
14494.4
8.23
2.35
0.00
0.00
0.00
0.00
2.35
0.889
0
14168.4
8.21
2.07
0.00
0.00
0.00
0.00
2.07
1.000
0
13434.1
8.15
1.47
0.00
0.00
0.00
0.00
1.47
1.111
0
12889.3
8.11
1.07
0.00
0.00
0.00
0.00
1.07
8.44838 = maximum stage elevation
5.43711 = maximum discharge
Page 6
2� vola "� •• c
p,tEAL
A8550

Page I
Parks Land Development - Pond B
Pasquotank County
10 yr STORM
25
� T q
20
bm
W
\
15
IIJ
m INFLOW (cis)
°
®
Y+
+ OUTFLOW (cfs)
10
'
0.000 0.200 0.400 0.600 0.800 1.000 1.200
Time (hrs)
•. O
SPAN C,.0 ��\`�•\
�'I0Og111n1\0

POND CALCULATIONS
FOR
Parks Land Devleopment - 050961 POND.xIs
POND B CALCULATIONS
AREA
PERMANENT POOL SURFACE AREA MINIMUM
MAIN BASIN SURFACE AREA
FOREBAY SURFACE AREA
AREA AT EDGE OF MAIN BASIN SHELF
AREA OF MAIN BASIN BOTTOM
AREA AT EDGE OF FOREBAY SHELF
AREA OF FOREBAY BOTTOM
SURFACE AREA AT 1° STORAGE
Fz
10620 11.134.14
7,698.48
3,435.66
4,451.61
2,339.97
1,181.43
413.97
12,684.62
ELEVATIONS
F
PP ELEVATION
7.00-
ELEVATION AT EDGE OF MAIN BASIN SHELF
5.33
ELEVATION OF MAIN BASIN BOTTOM
3.00
ELEVATION AT EDGE OF FOREBAY SHELF
5.33
ELEVATION OF FOREBAY BOTTOM
4.00
ELEVATION OF 1" STORAGE
7.94
VOLUME CALCULATIONS
F3
MAIN BASIN VOLUME
18,057.52
FOREBAY VOLUME
4,916.21
PERMANENT POOL VOLUME
22,973.73
FOREBAY PERCENTAGE OF TOTAL PERMANENT POOL VOLUME
21.40%
TEMP. STORAGE VOLUME (1a RUNOFF)
11,253.28
TEMPORARY STORAGE OFFSET
SLOPE (EX: IF 3:1 ENTER 3) 3.00
OFFSET FROM PP 2.83
BASIN DIAGRAM CALC
MAIN POND
SEDIMENT REMOVAL ELEVATION
4.00
PP DEPTH READS ... SEDIMENT SHALL BE REMOVED
3.00
FOREBAY
SEDIMENT REMOVAL ELEVATION
4,75.
PP DEPTH READS ... SEDIMENT SHALL BE REMOVED
2.25
0
FILE LOCATION-SWyman6 ra a 991p5pBBI Pa1Y5 tam DevleOpmanpErceaPa,ka Lam DO+lOopmem 1111PON130a �� •• ''•FNpIN�c��' a�i ;C
TAB - POND CALC B
w41120H 12.57 PM ��/i. FAN G. ...\,
Pape 1 01 I

W ATF9
Michael F. Easley, Governor
�DF
o
G
William G. Ross Jr., Secretary
rNorth
Carolina Department of Environment and Natural Resources
O — �
Alan W. Klimek, P.E. Director
Division of Water Quality
January 3, 2007
Mr. David O. & Katherine E. Parks
1252 Florida Road
Elizabeth City, NC 27909
SUBJECT: Stormwater Application for Parks Land Development
Dear Mr. Parks:
This office received a stormwater permit application for the subject project on January 2, 2007.
A preliminary review of your project indicates that the application package is incomplete. The following
items are needed to make the package complete:
_ $420 check
signature by owner on page 4 of application
_ 2 sets of plans
_ narrative
_ supplement (wet detention, infiltration basin, low density, curb outlet system, off -site
system, underground infiltration trench)
signature by owner on supplement form
,/soils report
We are returning the entire package to you. Once the package is complete you may resubmit.
You should also be aware that the Stormwater Rules require that a permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2h.1000 and North
Carolina General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day.
If you have any questions, please feel free to contact me at [phone].
Sincerely,
Roger Thorpe Environmental Engineer
Surface Water Protection
Washington Regional Office
cc: Hyman & Robey, PC
V;aRO
North Carolina Division of Water Quality Internet: www.ncwaterqualitv.orn
943 Washington Square Mall Phone [phone]
Washington, NC 27889 Fax [phone]
Nne
orthCarohna
Naturally
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper

C.A.9Q S � U V
DE�
r/LcZ j�A(z f� L_Q IJ E 2 ? 2006 D FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT LAND
H QlIRLITyg
No person may initiate any land -disturbing activity on one or more acres as covered EQ/tb&Eg�jO
form and an acceptable erosion and sedimentation control plan have been completed and appro rCE
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name parks Land DPVPI pmenl- _ JAN o a 2007
2. Location of land -disturbing activity:
County Pasquotank
City or Township
Nixonton �... .,,,/�
Highway/Street Blount Road
Latitude 36°w
Longitude
76°15'
3. Approximate date land -disturbing activity will commence: FPhrn ry 2On7
4. Purpose of development (residential, commercial, industrial, institutional, etc.): r'r,mmPrcial
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 6.53 Acres
6. Amount of fee enclosed: $ 350.00 . The application fee of $50.00 per acre (rounded
up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $450).
7. Has an erosion and sediment control plan been filed? Yes No Enclosed x
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name David Parks E-mail Address
Telephone [phone] Cell # Fax It
9. Landowner(s) of Record (attach accompanied page to list additional owners):
David 0. & Katherine E. Parks
Name Telephone Fax Number
1252 Plorirla Road
Current Mailing Address Current Street Address
Elizabeth City, NC 27909
City State Zip
City
Slate
IN
10. Deed Boolc No. 804 Page No. 715 Provide a copy of the most current deed.
Part B.
Person(s) or firm(s) who are financially responsible for the land-dis
comprehensive list of all responsible parties on an attached sheet):
-David 0. & Katherine E. Parks
Name
1252 Plorida Roarl
Current Mailing Address
Elizabeth City, NC 27909
City Stale Zip
ail Address
rrent Street Address WASHNGTON kEC�i4+"- I t)FFICE
Stale, Zip
Telephone [phone]
Fax Number

Lam_
t

2. (a) If the Financially Responsible Party is riot a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name
Current Mailing Address
City
Telephone
State Zip
E-mail Address
Current Street Address
Fax Number
State Zip
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Registered Agent
Current Mailing Address
City
T
State
E-mail Address
Current Street I
Zip City
Fax Number
Slate Zip
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there by any change in the information provided herein.
nau;A n_ Parka Owner
Type or9"WJ-
nt name Title or Authority
(z/2/ lab
Signature Date
I
a Notary Public of the County of
State of North Carolina, hereby certify that appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and notarial seal, this day of 20
Seal
Notary
My commission exp