SW7060719_CURRENT PERMIT_20070308

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
%Jw�
YYYYMMDD

AyTF\9
Michael F. Easley, Governor
. \phi
William G. Ross Secretary
IiVI,►/V`\V\1 r
North Carolina Department of Environment and Natural Resources
YAlan
W. Klimek, P.E. Director
Division of Water Quality
DIVISION OF WATER QUALITY
March 8, 2007
Northern Outer Banks Associates, LLC
Attn: Mr. Neal Blinken
PO Box 1374
Kitty Hawk, NC 27949
Subject: Stormwater Permit No. SW7060719
The Cove at Southern Shores
High Density Stormwater Project
Dare County
Dear Mr. Blinken:
The Washington Regional Office received a stormwater
application for the subject project on July 20, 2006. Revised
plans and supporting information were received on January 16,
2007. It has been determined that this project will comply with
the Stormwater Regulations set forth in Title 15A NCAC 2H.1000.
We are forwarding Permit SW7060719 dated March 8, 2007 to Northern
Outer Banks Associates, LLC for the construction and operation of
a wet detention pond to serve The Cove at Southern Shores located
at 6195 North Croatan Highway at Southern Shores, NC.
This permit shall be effective from the date of issuance
until March 8, 2017, and shall be subject to the conditions and
limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit.
Failure to establish an adequate system for operation and
maintenance .of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this
permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the
form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-
7447. Unless such demands are made this permit shall be final and
binding.
North Carolina Division of Water Qualiry Internet h2o.enr.state.nc.us
943 Washington Square Mall Phone: [phone]
Washington, NC 27889 FAX [phone]
An Equal Opportunity/Affrrnative Acton Employer— 50% Recycledll 0% Post Consumer Paper
Nne
orthCarolina
Naturally

Northern Outer Banks Associates, LLC
March 8, 2007
Page Two
If you have any questions, or need additional information
concerning this matter, please contact Bill Moore at (252) 948-
3919.
I
ncerely,
—Fibd�gi rvisor
.Surface Water Protection Section
Washington Regional Office
cc: McKim & Creed - Virginia Beach Office
Town of Southern Shores Planning/Inspections
Washington Regional Office
Central Files

State Stormwater Management Systems
Permit No. SW7060719
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143,
General Statutes of North Carolina as amended, and other
applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Northern Outer Banks Associates, LLC
Dare County
FOR THE
construction, operation and maintenance of stormwater management
systems in compliance with the provisions of 15A NCAC 2H.1000
(hereafter referred to as the "stormwater rules") and the approved
stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the
Division of Water Quality and considered a part of this permit for
grass swales, vegetated buffers and a wet detention pond to serve
The Cove at Southern Shores project located at Southern Shores,
NC.
This permit shall be effective from the date of issuance until
March 8, 2017, and shall be subject to the following specified
conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and
volume of stormwater described inthe. application and other
supporting data.
2. This stormwater system has been approved for the management
of stormwater runoff as described on page 4 of this permit,
the Project Data Sheet.
3. Approved plans and specifications for this project are
incorporated by reference and are enforceable parts of the
permit.
3

DIVISION OF WATER QUALITY
PROJECT DATA
Project Name:
The Cove at
Southern Shores
Permit Number:
SW7060719
Location:
Dare County
Applicant:
Northern Outer
Banks
Associates,
LLC
Mailing Address:
PO Box 1374
Kitty Hawk,
NC 27949
Application Date:
07/20/2006;
original
O1/16/2007;
complete
Receiving Stream:
Jean Guite
Creek
Stream Classification:
SC
Total Site Area: 5.35 acres
Total Impervious: 3.22 acres
Area Allowed
Pond Depth: 5.0 ft
Required Storage Volume: 11,231 cf
Provided Storage Volume: 11,453 cf
Required Surface Area: 9910 sf
Provided Surface Area:, 13,329 sf
Controlling Orifice: drawndown orifice 2.0-inch at
elevation 3.0 ft.
0

4. No homeowner/lot owner/developer shall be allowed to fill in,
alter, or pipe any vegetative practices (such as swales)
shown on the approved plans as part of the stormwater
management system without submitting a revision to the permit
and receiving approval from the Division.
S. The following items will require a modification to the
permit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built -
upon area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions
to the project should require a modification to the permit.
6. The Director may notify the permittee when the permitted site
does not meet one or more of the minimum requirements of the
permit. Within the time frame specified in the notice, the
permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements.
The permittee shall provide copies of revised plans and
certification in writing to the Director that the changes
have been made.
II. SCHEDULE OF COMPLIANCE
1. The permittee will comply with the following schedule for
construction and maintenance of the stormwater management
system.
a. The stormwater management system shall be constructed
in its entirety, vegetated and operational for its
intended use prior to the construction of any built -
upon surfaces except roads.
b. During construction, erosion shall be kept to a minimum
and any eroded areas of the system will be repaired
immediately.
2. The facilities must be properly maintained and operated at
all times. The approved Operation and Maintenance Plan must
be followed in its entirety and maintenance must occur at the
scheduled intervals.
3. The permittee shall at all times provide the operation and
maintenance necessary to assure the permitted stormwater
system functions at optimum efficiency including, but not
limited to-
5

a. Semiannual scheduled inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved
plans and specifications
f. Debris removal and unclogging of outlet structure,
orifice device and catch basins and piping.
4. Records of maintenance activities must be kept and made
available upon request to authorized personnel of DWQ. The
records will indicate the date, activity, name of person
performing the work and what actions were taken.
5. This permit shall become voidable unless the facilities are
constructed in accordance with the conditions of this permit,
the approved plans and specifications, and other supporting
data.
6. Upon completion of construction and prior to operation of
this permitted facility, a certification must be received
from an appropriate designer for the system installed
certifying that the permitted facility has been installed in
accordance with this permit, the approved plans and
specifications, andother supporting documentation. Mail the
Certification to the Washington Regional Office, 943
Washington Square Mall, Washington, North Carolina, 27889,
attention Division of Water Quality.
7. A copy of the approved plans and specifications shall be
maintained on file by the Permittee for a minimum of five
years from the date of the completion of construction.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a
.desire for the facilities to change ownership, or there is a
name change of the Permittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an
application fee, documentation from the parties.involved, and
other supporting materials as may be appropriate. The
approval of this request will be considered on its merits and
may or may not be approved.
2. Failure to abide by the conditions and limitations contained
in this permit may subject the Permittee to enforcement
action by the Division of Water Quality; in accordance with
North Carolina General Statute 143-215.6(a) to 143-215.6(c).
3. The issuance of this permit does not preclude the Permittee
from complying with any and all statutes, rules, regulations,
or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
6

4. In the event that the facilities fail to perform
satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective
action, including those as may be required by this Division,
such as the construction of additional or replacement
stormwater management systems.
5. The permit may be modified, revoked and reissued or
terminated for cause. The filing of a request for a permit
modification, revocation and reissuance or termination does
not stay any permit condition.
6. At least six months prior to the expiration date, the
permittee must submit a written request for permit renewal
to the Division of Water Quality, Washington Regional
Office.
Permit issued this the 8 th day of March, 2007.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Z't
Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7060719
7

Stormwater Permit No. SW7060719
The Cove at Southern Shores
Swales, Vegetated Buffers, and Wet Pond
Dare County
Designer's Certification
I, , as a duly
registered Professional Engineer in the State of North Carolina,
having been authorized to observe (periodically/weekly/full time)
the construction of the project,
for
(Project)
(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.
Signature
Registration Number
Date
0

l
`' T cKIM CREED ENGINEERS
`V/'1`/ll... vi SURVEYORS
January 11, 2007 P L A N N E R S
Bill Moore, Environmental Engineer
North Carolina Department of Environment and
Natural Resources �g
Division of Water Quality
943 Washington Square Mall
Washington, NC 27889 ,BAN 16 207
Reference: The Cove at Southern Shores Southern Shores, North Carolina ®W'mif1 l V6��_�n�ARC
5thSubmittal for Stormwater Management Permit
McKim & Creed Project No.: 04004-0001
Dear Mr. Moore:
Enclosed please find two copies of revised sheets C-03, C-06 and D-02 and two copies of
revised Wet Detention Pond Calculations, Ceoblock Infiltration Device Calculations and
Wet Detention Basin Supplement. Please replace the corresponding plan sheets and
calculations that were transmitted to you previously with this revised information.
We offer the following in response to your verbal comments from our telephone
conversation of December 15, 2006:
1. Revise the Wet Detention Pond Calculations and Wet Detention Basin Supplement so
that they correspond to one another. Resubmit two copies of the revised calculations
and supplement.
The Wet Detention Pond Calculations and Wet detention Basin Supplement have
been revised to correspond with one another.
2. Revise the Overflow Structure on Detail Sheet D-02 as necessary to match the
example detail provided by you.
The Overflow Structure has been revised to match the example detail.
3. Provide Vegetative Plan for ponds on Landscape Plan sheet C-06.
A vegetative plan for the ponds has been provided on sheet C-06 Landscape Plan.
4. Add notes to Sections B-B and C-C on sheet C-03 referencing the planting schedule
for the vegetative shelf on the Landscape Plan sheet C-06.
The corresponding notes have been added.
380 Clevetand Piace 5. Add note to Ceoblock Infiltration Device Calculations stating the conservative design
assumption that was made and point out that the infiltration rate will more than
Virginia Beach, VA 23462 likely be much higher.
The corresponding note has been added.
757 .43 1.1002
Fax [phone]
w w w.mckimc,eed.com

Please contact me at the office [phone] or my cell phone [phone] should you
have any questions.
Sincerely,
Mc im & Creed
KI 0 /
James M. Mozingo, PE
Project Manager
Cc: Jim Evans — Republic Cove Partners, LLC
Neal Blinken — Northern Outer Banks Associates, LLC
�MgQM&CREED

Permit No
(to be provided by DWQ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name:
Contact Person: JaK4L5 MotrlNc'o Phone Number: 091 -13i
For projects with multiple basins, specify which basin this worksheet applies to: I
elevations
Basin Bottom Elevation — 2.6 ft.
Permanent Pool Elevation 3,o ft.
Temporary Pool Elevation 3,9 ft.
areas
(floor of the basin)
(elevation of the orifice)
✓ (elevation of the discharge structure overflow)
Permanent Pool Surface Area 13, 3 ZA sq. ft.
Drainage Area I, ac.
Impervious Area 3. t ac.
99io REQ.
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume 3 `(, i 6( ft. (combined volume of main basin and forebay)
Temporary Pool Volume I I� YSS cu. ft. (volume detained above the permanent pool) l/ Z3/ REtO
Forebay Volume $ , 3 s 6 cu. ft. (approximately 20% of total volume)
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3.99
2 in.
(surface area to drainage area ratio from DWQ table)
(2 to 5 day temporary pool draw -down required)
(minimum 85% required)
Page 1 of 4

Footnotes:
When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to detemrine the correct value for non-
standard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may he waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BbiP manual provides design tables for both 85% TSS removal and 900/6 TSS removal.
IL REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stonnwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been rnet and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
klM t a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
.IM b. The forebay volume is approximately equal to 20% of the basin volume.
,)M1A t c. The temporary pool controls runoff from the design storm event.
JM r d. The temporary pool draws down in 2 to 5 days.
N/fit e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
. calculations)
JM L f. The basin length to width ratio is greater than 3:1.
i
�M g. The basin side slopes above the permanent pool are no steeper than 3:1.
Z. JM It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
�'W i. Vegetative cover above the permanent pool elevation is specified.
1/A t j. A trash rack or similar device is provided for both the overflow and orifice.
m%A k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
�A L If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
& h— we e1-m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does Wdoes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does Vdoes not incorporate pretreatment other than a forebay.
Forru SWU-102 Rev 3.99
Page 2 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 orifice 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.e. catch basins, piping, swales, riprap, 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.e.
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.
When the permanent pool depth reads 3.15 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads .2-00 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
Ull in the blanks)
0 Permanent Pool Elevation -3.oU
Sediment Ren oval EI. i�,0% 75 °
______________ __ Sediment Removal Elevation—t�•lS 75%
BotEle anon ' (• G %
--------------------------------------------i----
tom
Bottom Elevation ' 7_0 25%
FOREBAv MAIN POND
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.
Form SWU-102 Rev 3.99
Page 3 of 4

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. r agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party. /
print name:'
it�iI,✓ ru*« t3nk b. cs..e.'gd'�t /�L hF eel �Ii H�Cxsn
II
Title: AAc,vt4 (!N Ake_M44 V'
Address: P o F - 132q K*2 40, NL 2�g4`i
Note: The legally respon able party should not be a bomaowners association unless more than 5W. of the lots have been sold and a
residwt of the subdivision has been named the president
a Notary public for the State of
ou Cn otmty of I 'a If Y t•-�'(e_t �-�_. hereby certify that M, M( LLJ V-c,, ,
personally appeared before me this N D day of iSr 16_2 �- o' _,d acknowledge the due
execution of the forgoing wet detention basin maintenance requiremenf . Witness my hand and official seal,
etv�pr eTHq,f9`
NOTARY'-A
PUBLIC
�e f
NY COMM. Expires! U
SEAL
My commission expires
Form SWQ-102 Rev 3.99
Page 4 of 4

Wet Detention Pond Calculations
NC DENR Retention Requirements
objective: design a wet detention basin with the following characteristics: a permanent water pool depth between 3- and
6-feet, a surface area that meets TSS removal requirements (values set by NC DENR and included here), a forebay that
is approximately 20% of the total pond volume, a temporary water pool sized to detain the initial 1 inch of rainfall runoff, an
outlet device that drains the temporary water pool within 2-5 days, and a length -to -width ratio of approximately 3:1.
step 1
Determine the surface area required for 90% TSS removal (based on NC DENR BMP requirements without 30'
ie fitter) and check the pond length:width ratio.
Total Drainage Area
Impervious Drainage Area
Impervious Cover
4.55 ACRE Value from CAD
3.2 ACRE Value from CAD
o Impervious Cover -(Impervious Drainage
70 /o Area)/(Total Drainage Area)'100%
Elevation of Permanent Pool Surface
3.0
FT
Value selected by designer
Depth of Permanent Pool
6.0
FT
Value selected by designer
(Bottom Elevation)=(Permanent Pool Surface
Elevation of Wet Detention Pond Bottom
2.0
FT
Elevation) -(Depth of Permanent Pool)
Approximate Pond Length
487
FT
Value from CAD
A roximate Pond Width
29
FT
Value from CAD
Lenoth:Width Ratio
17:1
Ratio=(Length)/(Width):1
Required SAWA ratio Tor au-ro I oo RCIlluval
V.VJV
Required Permanent Pool Surface Area 9,910 SF
rovided Permanent Pool Surface Area
2006-12-17 NCDENR BMP Calcs.xls
13,329 SF
Value from chart. Reference: "90% TSS
Removal
i via iia r
Ratio)*(Total Drainage Area)
Interpolated value from stage -storage
12/17/2006
04004-0001
Page 1 of 5

Step 2• Determine the 1-inch runoff elevation within the wet detent
Runoff Coefficient, RV 0.68 IN/I
Required 1" Runoff Volume (Volume of 11,231 CF
Temporary Pool)
Volume Below Permanent Pool 34,766 CF
Rv=0.05+0.009*(% Impervious)
1"Runoff Volume=1 inch*R01 foot112
inch*(Total Drainage Area)
Value from stage -storage calculations
(cumulative pond volume at permanent pool
elevation)
Total Volume to be Controlled=(Volume Below
Total Volume to be Controlled 40,77' Cr Permanent Pool)+(1"Runoff Volume)
Storage Elevation at Required Volume 3.8 FT
Value is interpolation based upon stage -storage
values. See stage -storage calculations
Step 3 Calculate the required forebay volume (18-22%
of total pond volume) and compare to the forebay volume provided.
Total Pond Volume
34,766 CF
Value from stage -storage calculations
Required Forebay Volume
6,953 CF
Forebay Volume=(Total Pond Volume)*20%
Provided Forebay Volume
8,386 CF
Value from sta a-stora a calculations
(Provided Forebay Volume)/(Total Pond
Provided Forebay Volume:Total Pond Volume
24%
Volume)*100%
Step 4• Verify that time required to drawdown the 1-inch runoff volume is within 2 to 5 days.
Diameter of Proposed Low -flow Orifice
2.0 IN
Value chosen by designer
Storage Elevation at Required Volume
3.80 FT
Value chosen by designer
(Total Elevation Head Above Orifice)=(Weir
Total Elevation Head Above Orifice
0.80 FT
Elevation) -(Elevation of Permanent Pool
Surface)
(Average Elevation Head Above
Orifice)=((Storage Elevation at Required
Average Elevation Head Above Orifice
0.4 FT
Volume)+(Elevation of Permanent Pool
Surface)]/2-(Elevation at Permanent Pool)
Cd, Coefficient of Discharge
0.6
Value chosen by designer
"I
Q=Cd*(Pi)*((Diameter of Orifice)*(1 W12
D Flowrate Through Low-tlow Orifice u.uf ` Fo in)]^2/4*[2*32.2*(Averge Head)]^1/2
(Drawdown Time)=(1 " Runoff Volume)/Q*(1
Drawdown Time for 1-inch Runoff 1.96 DAYS day/86400 seconds)
2006-12-17 NCDENR BMP CaICS.XIS
12/17/2006
04004-0001
Page 2 of 5

Step 5: Determine depths and elevations that trigger sediment clean -out of wet detention pond. Depth is measured from
top of berm separating the forebay from the main detention pond.
hAnin netPntinn Pond Elevation Requirinq Clean- (Clean -out Elevation)=(Main Pond Bottom
out
-- Elevation) +25%* Main Pond Depth)
Main Detention Pond Depth Requiring Clean- 3.75 FT (Clean -out Depth)=(Elevation of Berm) -(Clean -
out out Elevation)
1r (Clean -out Elevation)=(Forebay Bottom
Forebay Elevation Kequinng wean -out v•vU r' Elevation) +25%' Foreba Depth)
(Clean -out Depth)=(Elevation of Berm)-(Clean-
Forebay Depth Requiring Clean -out 3.00 FT out Elevation
F
2006-12-17 NCDENR BMP Calcs.xls
12/17/2006
04004-0001
Page 3 of 5

Wet Detention Pond Calculations
Stage -Storage Calculations for Proposed Wet Detention Pond
Objective: determine the storage capacity and characteristics of the proposed wet detention pond.
1: Calculate the
of the entire wet detention
Entire Detention Pond (Includii
Incremental
Cumulative
Contour
Volume
Volume, S
Contour
Area (SF)
(CF)
(CF)
-2.0
2,715
0
0
-1.5
3,156
1,468
1,468
-1.0
3,872
1,757
3,225
-0.5
4,679
2,138
5,363
0.0
5,613
2,573
7,936
0.5
6,549
3,041
10,976
1.0
7,604
3,538
14,515
1.5
8,692
4,074
18,589
2.0
9,810
4,626
23,214
2.5
11,534
5,336
28,550
3.0
13,329
6,216
34,766
-Permanent Pool
3.5
14,558
6,972
41,738
3.8
15,313
4,481
46,219
-Temporary Pool
4.0
15,819
3,113
49,332
4.5
19,029
8,712
58,044
5.0
20,107
9,784
67,828
?r contour intern+
3.0- 3.ta 697Z c,C
P°°/
_rA
Step 2 Calculate the forebay volume to determine if it meets NC DENR requirements (20% of entire pond volume).
Forebay Only
Incremental
Cumulative
Contour Volume
Volume, S
Contour Area (SF) (CF)
(CF)
-1.0 258 0
0
0.0 992 625
625
1.0 1,995 1,493
2,118 12/17/2006
2.0 3,119 2,557
4,675 04004-0001
3.0 4,302 3,710
8,386 Page 4 of 5
2006-12-17 NCDENR BMP Calcs.xls

Wet Detention Pond Calculations
Reference: SA/DA Ratio for TSS Removal (NC DENR)
Surface Area/Drainage Area for 85% TSS Removal with 30' Vegetative Filter (Coastal Counties)
Permanent Pool Depth (ft)
Impervious
% 3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
10%
0.9
0.8
0.7
0.6
0.5
0.0
0.0
0.0
0.0
0.0
20%
1.7
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
30%
2.5
2.2
1.9
1.8
1.6
1.5
1.3
1.2
1.0
0.9
40%
3.4
3.0
2.6
2.4
2.1
1.9
1.6
1.4
1.1
1.0
50%
4.2
3.7
3.3
3.0
2.7
2.4
2.1
1.8
1.5
1.3
60%
5.0
4.5
3.8
3.5
3.2
2.9
2.6
2.3
2.0
1.6
70%
6.0
5.2
4.5
4.1
3.7
3.1
2.9
2.5
2.1
1.8
80%
6.8
6.0
5.2
4.7
4.2
3.7
3.2
2.7
2.2
2.0
90%
7.5
6.5
5.8
5.3
4.8
4.3
3.8
3.3
2.8
2.3
100%
8.2
7.4
6.8
6.2
5.6
5.0
4.4
3.8
3.2
2.6
Surface Area/Drainage
Area for
90% TSS
Removal without Vegetative Filter
(Coastal Counties)
Permanent Pool
Depth (ft)
Impervious
% 3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7..0
7.5
10%
1.3
1.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
20%
2.4
2.0
1.8
1.7
1.5
1.4
1.2
1.0
0.9
0.6
30%
3.5
3.0
2.7
2.5
2.2
1.9
1.6
1.3
1.1
0.8
40%
4.5
4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
50%
5.6
5.0
4.3
3.9
3.5
3.1
2.7
2.3
1.9
1.5
60%
7.0
6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
1.9
70%
8.1
7.0
6.0
5.5
5.0
4.5
3.9
3.4
2.9
2.3
80%
9A
8.0
7.0
6.4
5.7
5.2
4.6
4.0
3.4
2.8
90%
10.7
9.0
7.9
7.2
6.5
5.9
5.2
4.6
3.9
3.3
100%
12.0
10.0
8.8
8.1
7.3
6.6
5.8
5.1
4.3
3.6
Reference: "Stormwater Best Management Practices" by NCDENR DWQ Water Quality Section, April 1999
12/17/2006
04004-0001
2006-12-17 NCDENR BMP Calcs.xls Page 5 of 5

Geoblock Infiltration Device Calculations
NC DENR Infiltration Requirements
Objective: design an infiltration device with the following characteristics: soils infiltrate a minimum of 0.52 inches/hour,
device shall capture and infiltrate 1 inch of rainfall runoff, drawdown within 5 days, maximum drainage area of 5 acres,
device shall be sited 30 feet from surface water and 2 foot separation from the bottom of the device to groundwater.
Step 1• Determine separation from groundwater.
Elevation of Ground
3.0
FT
Value selected by designer
Depth of Geoblock and base material
0.5
FT
Value selected by designer
Bottom Elevation=(Ground Elevation) -(Depth of
Elevation of Infiltration Device Bottom
2.5
FT
Geoblock and base material)
Depth of groundwater
2.5
FT
Value from GET report dated Dec. 31, 2005
n c
CT
Groundwater Elevation=(Ground Elevation)-
GleVallUfl ui y1uw1UWaLV1 "•' tUeDth or
Required separation from groundwater W 2.0 FT
Separation=(Bottom Elevation) -(Groundwater
Provided separation from groundwater 2.0 FT Elevation)
Step 2- Determine the 1-inch runoff volume to be captured and infiltrated.
Post -Development Conditions
Total Drainage Area 0.35 AC Value from CAD
Impervious Drainage Area 0.35 AC Assume area of Geoblock for treatment
Impervious Cover —(Impervious Drainage
Impervious Cover 100% Area)/(Total Drainage Area)*100%
Void space 35% Maximum voids for gravel base (Assumed)
Runoff Coefficient, Rv 0.95 IN/IN Rv=0.05+O.0U9'(% Impervious)
1,190 CF 1"Runoff Volume=(1 inch)*(Rv)*(1 f6ot112
Required 1" Runoff Volume inch)*(Total Drainage Area)
Provided Volume=(Total Drainage Area)*(Depth
Provided 1" Runoff Volume 2,630 . CIF of Geoblock and base material)*(Void
2007-1-11 NCDENR BMP Calcs_Geoblock Road.xls
/2007
04004-0001
Page 1 of 2

Geoblock Infiltration Device Calculations
NC DENR Infiltration Requirements
Step 3• Verify that time required to drawdown the 1-inch runoff volume is within 5 days.
USCS Soil Classification SP Value from GET report dated Dec. 31, 2005
Coefficient of Permeability 0.70 IN/HR Value trom uivu tngineenng Kererence manual
Coefficient of Permeability)*(Total Drainage
Drawdown Time for 1-inch Runoff 0.13 DAYS Area)'(43,560 cf/acre)`(24 hours/day)`(1 ft/12
NOTE: THESE CALCULATIONS ARE BASED ON A VOID SPACE RATIO OF 35% AND AND INFILTRATION RATE OF
0.70 IN/HR FOR INSITU SOILS. THESE ASSUPTIONS REPRESENT A CONSERVATIVE DESIGN. IT IS ANTICIPATED
THAT INFILTRATION RATES WILL BE MUCH HIGHER.
2007-1-11 NCDENR BMP Calcs_Geoblock Road.xls
1/1112007
04004-0001
Page 2 of 2

M
®►fl/(�_►pI/, (�� State of North Carolina SW4CK' 7IaI16i0
VVY NVPSDepartmentofEnvironmentandNaturalResources
Division of Water Quality
SfORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may he photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants I name (specify the name of the corp�toration, individual, etc. who owns the project)
_N e/'t4l ervw C: ev c, kS_ r-t5SeCjGfCS . LLC.
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
—IJg_C,l 13if�ke� _ Ma�Q�rHy N1e �,bZr
3. Mailing Address for person listed in Item 2 above:
O. 1374
City: State: Nc- Zip: Z]9ej1 -
Telephone Number: l_��
4, Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and Sn
d maintenance agreements, etc.):
I ,A,L cq"c at SoytM .rtn ore'S
5. Location of Project (street address):
6195 P4. Crootgn
i
City: 5(.tare.S County: Veye-
6. Directions to project (from nearest major intersection):
7. Latitude:_ 36-69455• 4 Longitude: 75-.73730 tJ of project
8. Contact person who can answer questions about the project:
Name: \I0^9 M, AA o1:4\i0 Telephone Number: (_75 ) 1431-Ioo7-
IL PERMIT INFORMATION:
1. Specify whether project is (check one): _ ( New Renewal Modification
Form SWU-101 Version 3.99 Page I of4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number_ and its issue date (if known).
3. Specify the type of project (check one):
Low Density High Density _Redevelop _General Permit _Other
4. Additional Project Requirements (check applicable blanks):
,KCAMA Major `Sedimentation/Erosion Control /C 404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how Stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing Stormwater management for the project,
si wMwg{cr will be_ c frecf-t t-..wordy c.txt-eIll, 6ci5rN S{r�ciue 5 ej �o�
cuyertS � c ulleetee� qAJ cc,"ve e e -r, ca wQ—t � i'\-W±rcb'otl noted
��r si-arnrwg4er wtatira9ewsuti'.
J
2. Stormwater runoff from this project drains to the 'PCt3q v a+C' H k River basin.
3. Total Project Area: Y- 3 S acres 4. Project Built Upon Area:39 %
5. How many drainage areas does the project have?
6. Complete the following Information for each drainage area. If there are more than two drainage areas In the
project, attach an additional sheet with the information for each area provided in the same format as below.
Receiving Stream Name
.�•-�°r*��r�4
eQ„l i..v3tC Crete
Receiving Stream Class
G
Drainage Area
q,G gCre-i
• 241 7
Existing Impervious` Area
NIA
_
Proposed Impervious Area
, Z
q Impervious' Area (total)
'70 u
=.�A�nr,7Qiis�'
$uifapp 44[eB
�Llr, ipAgde�r'ea
"t-`„
On -site Buildings
CU- 4
gGre
On-siteStraels Nvl
$3
gCrr,S
On -site Parking
On -site Sidewalks G
0, 2-0
aerLi
Other on -site
0.17
R Lrf. S
Off -site
- 1
0.ve-j
Total: 3 ZZ
Q�­c cc)
Total:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of

7. How was theof-sieiarea listed above derived? MG P
q'i h"Ct�
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
I. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel. concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must he submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
FormSWU-107
Underground lnfiltrationTrench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of

VI. SUBMITTALREQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Inloals
• Original and one copy of the Stormwater Management Permit Application Form M
• One copy of the applicahle Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management .+1
• Two copies of plans and specifications, Including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (Including off -site), drainage easements. pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where requited)
VYL AGENT ALM]ORIZATION
If you wish to designate authority to another Individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): AAr_K fM * er f v A PA .P(���AkWP 5 MDZ•ttgy_
Mailing Address: lii/$ VFke.lo Dr-tue-&,,,I-t 100 J
City:VL(-e4FH#a State: VA Zip: 23y5Z
Phone: ( - 57 I `-st-1O01- rax: (:357 ) q_3(_(A3Z
VM. APPLICANT'S CERTIFICATION U �
1,(print oriypenameafpersonlisted inGeneral lnIbnastian,item 2)
certify that the Information Included on this permit application form Is, to the best of my knowledge, correct and
that the pmect will be constructed in confor are with the approved plans, that the required deed restrictions
and protective coven will be rl ded, end the proposed project complies with the requirements of 15A
NCAC ?H .1000. 7
Signature: / Date:
Form SWU-101 Version 199 Page 4 of 4

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
RL_GE0VIv.©
JUL 2 0 2006
DWQ-WARO
DWQ Stormwater Management Plan Review:
A complete stormwatcr management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: ke- Cot_ at S4JAtvn S kore 1
Contact Person: X ici w.e5 Akoh(ATu Phone Number: (751 ) 431 - (W Z
For projects with multiple basins, specify which basin this worksheet applies to: I
elevations ,�//7
Basin Bottom Elevation — 2, ft.
Permanent Pool Elevation _ -3 • d it.
Temporary Pool Elevation 3,10 vol"ft.
areas
Permanent Pool Surface Area 17 3q4 sq. ft.
Drainage Area 1.• ac.
Impervious Area 3-2- ac.
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
13, IV S'-F PP ter fwr. *�
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site andlM
off -site drainage to the basin)
AlI
/' 74V C4 6uv�4
volumes �G
Permanent Pool Volume 39.60 L cu. ft. (combined volume of main basin andforebay)
Temporary Pool Volume i l Z 31 cu. R. (volume detained above the permanent pool)
Forebay Volume -6, I86 cu. ft. (approximately 20%of total volume)
Other parameters r/
SAIDAl O.050 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice Z d in: (1 to 5 day temporary pool draw -down required
Design Rainfall 1 in.
Design TSS Removal 2 9u % (minimum 85% required)
Fong SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
To the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
If. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Fornt, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
e
JM a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
e
JM b. The forebay volume is approximately equal to 20% of the basin volume.
'* z c. The temporary pool controls runoff from the design storm event.
z
JM d. The temporary pool draws down in 2 to 5 days.
NJ& e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive'flow
r
calculations)
JM f. The basin length to width ratio is greater than 3:1.
a
g. The basin side slopes above the permanent pool are no steeper than 3:1.
t
JM It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
�tilr i. Vegetative cover above the permanent pool elevation is specified.
z
JM j. A trash rack or similar device is provided for both the overflow and orifice.
-ra, 6, r e,,4J ci k. A recorded drainage easement is provided for each basin including access to nearest right-
JMz
of -way.
I. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does (does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does Vdoes not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

eIevafi;'W^s
Maintenance activities shall be performed as follows:
1. After every significant mnoff 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 orifice 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.e. catch basins, piping, swales, riprap, 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.e.
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.
When the permanent pool depth reads `{. 1 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 3.5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation .j.7
Sediment Ren oval El. 0 - L 175 0
___ ♦ Sediment Removal Elevation—J•6
Bottom Ele ation i3O "/o ---------------------
Bottom Elevation —Z-L
FOREBAY MAIN POND
PP
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.
Form SWU-102 Rev 3.99 Page 3 of 4
t711^
0•'13 G��C✓

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. r agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Printname:.tjortWm Oylty SAKks ASs0t,,*q ,,i I-t-(• rteej 91,6,
Title: AAo4 Q4k eNa /./ie_nnber
Address: P.O. Px ✓' 137l Ktt'-\z Agjk NL 2"I949
Note: The legally responsible petty should not be a homeowners association unless more than 50a/o of the lets have been sold and a
resident of the subdivision has been Domed the president
1, r. l iw A. 1 C\/1 j� o a Notary Public for thel State of , 'J 3 a
Countyof �( rl`-�AO.% hereby erebycertifythat f��jj I �� 1,jl/ y-- ij
personally appeared before me this ' N D day of _F_ (and acknowledge the due
execution of the forgoing wet detention basin maintenance requiremen . Witness my hand and official seal,
t;iNq o.
to r NOTARY % 2,
PUBLIC :
G IYMCOMM.Expires/ 2U
9':�alt•to,2oto�
9 ..........+ ✓y
°•e,.OK COV -
SEAL
My commission expites...Ytl ra L2 Do v
Form SW-102 Rev 3.99 Page of

THIS DOCUMENT CONTAINS'.BLEED-THRU NUMBERING, MICROPRINT SIGNATURE LINE)AND'A COLORED BACKGROUND: B ,% -?
B •
Mcl(W&CREM122462
North243 North Front Street
0.
10.
PAY „+,,,,,,,,,,++,,,,,,,,,++,420 DOLLARS AND 00 CENTS
TO THE - NCDENR
ORDER
OF
NC US
$ ....+++,.....+'420.00
VOID IF NOT PRESENTED WITHIN 90 DAYS
ti.
------'---�—�------=---_ .--"...ter.
_M'
I'122462,11 1:053101?101: 52167441461I@

v� MC M&CREED
July 19, 2006
Bill Moore, Environmental Engineer
North Carolina Department of Environment and
380 Cleveland Place
Virginia Beach, VA 23462
757.431. 1002
Fax 757.431,1032
Natural Resources
Division of Water Quality
943 Washington Square Mall
Washington, NC 27889
Reference: The Cove at Southern Shores
Southern Shores, North Carolina
3rd Submittal for Stormwater Management Permit
McKim & Creed Project No.: 04004-0001
Dear Mr. Moore:
ENGINEERS
SURVEYORS'
PLANNERS
JUL 2�p0n200006
DWQ-WARO
We are resubmitting the stormwater management permit application for the above
referenced project as well as responses to the two major stormwater issues identified in
your comment letter dated May 8, 2006. Please find the following attached for your
review:
1. A copy of the Stormwater Management Permit Application Form (the original
form will be forwarded under separate cover);
2. One copy of the applicable Supplemental Form;
3. Permit Application Processing Fee in the amount of $420.00;
4. Detailed narrative description of stormwater treatment/management included in
the calculations;
5. Two copies of plans and calculations.
We offer the following in response to your comment letter dated May 8, 2006:
1. The wet pond has been revised so that it is completely contained on site. A
retaining wall was added along the southern side of the pond to achieve this
result. In order to completely contain the ponds on site and meet the minimum
volume requirement, the vegetated shelf along the proposed retaining wall was
excluded. Exclusion of the vegetated shelf on one side of the pond does not
compromise the functionality of the ponds to meet the water quality standards.
The Stormwater Best Management Practices Manual states that pollutant
removal is based on settling out suspended solids and pollutants. Although a
www.mckimcreed.com

vegetated shelf enhances pollutant removal, settling efficiency is determined by
the physical characteristics of the pond such as length to width ratio and volume
requirements. The proposed pond meets or exceeds the minimum physical
requirements as stated in the Stormwater Best Management Practices Manual
and therefore meets the minimum pollutant removal requirements.
2. It is our understanding that Mr. Handlos, Business Development Engineer with
Presto Products Company — Ceosystem, has spoken to you and provided
additional information such that the geoweb road for this particular project and
existing site conditions would be considered pervious and therefore not need
any additional stormwater management measures.
We will be requesting a variance from the Coastal Resources Commission for placing the
fire access lane within the thirty foot CAMA setback pending disapproval from the
Division of Coastal Management on our CAMA Major Permit Application. In order for
us to proceed with this process, we need a favorable response from your office or at a
minimum a conditional approval pending approval of our variance request from the
CRC. We are trying to get on the CRC's September 2006 meeting agenda and therefore
would need a decision from your office no later than August 15w.
Thank you for your assistance coordinating the review of additional information. Please
contact me at the office [phone] or my cell phone [phone] so that we may
discuss this submittal and our plans moving forward.
Sincerely,
M Kim &Creed
A J /
James M. Mozingo, PE
Project Manager
Cc: Jim Evans —Republic Cove Partners, LLC
Neal Blinken — Northern Outer Banks Associates, LLC
s:\4004\0001\10-comm\19-transmittaI letters \ 2006-7-14_bill moore_3rd submittal to
wqs\2006-7-14_bill moore_3rd submittal to wgs_transmittal.doc
�MCK M&CREED

46
MJQM&CREED
September 15, 2006
Bill Moore, Environmental Engineer
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
943 Washington Square Mall
Washington, NC 27889
Reference: The Cove at Southern Shores
Southern Shores, North Carolina
4hSubmittal for Stormwater Management Permit
McKim & Creed Project No.: 04004-0001
Dear Mr. Moore:
ENGINEERS
SURVEYORS
PLANNERS
The building configuration and location for the above referenced project has been revised
in order to shift the Geoblock road completely outside of the 30 foot CAMA setback.
Additional storm drainage structures were added to collect runoff around the pool deck
and sidewalk along the back of the building and convey it to the wet detention pond in
front of the building for water quality management. Additional calculations have been
provided pertaining to infiltration design for the Geoblock road.
We are hereby submitting two copies of revised sheets C-02, C-03 and D-03 and two
copies of revised calculations due to these revisions. Please replace the corresponding
plan sheets and calculations that were transmitted to you on July 19, 2006 with this
revised information.
Thank you for your assistance coordinating the review of this additional information.
Please contact me at the office [phone] or my cell phone [phone] should you
have any questions.
Sincerely, RECEIVED
M Kim &Creed �
SEP 19 2006
James M. Mozingo, PE
380 Cleveland Place project Manager DWO-WAR®
Virginia Beach. VA23462 Cc: Jim Evans— Republic Cove Partners, LLC
Neal Blinken — Northern Outer Banks Associates, LLC
757.431.1002
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