SW8990462_Historical File_20051202

Q� WATF�, Michael F. Easley, Governor
�Q William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
a Alan W. Klimek, P. E. Director
Division of Water Quality
December 2, 2005
Mr. Charles E. Wells, Managing Partner
Eagle Investments
1640 NC Hwy. 53 West
Burgaw, NC 28425
Subject: Permit No. SWS 990462 Modification
Rocky Point Commercial Park
High Density Subdivision Stormwater Project
Ponder County
Dear Mr. Wells:
The Wilmington Regional Office received a complete modified Stormwater Management
Permit Application for Rocky Point Commercial Park on November 15, 2005. Staff review of
the plans and specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No.
SW8 990462 Modification, dated December 2, 2005, for the construction of the subject project.
This permit shall be effective from the date of issuance until July 11, 2013, the original
Pxpiration date, 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 sixty (60) 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.
If you have any questions, or need additional information concerning this matter, please
contact Linda Lewis, or me at [phone].
Sincerely;
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/ad: S:IWQSISTORMWATERIPERMIT1990462.dec05
cc: Jim Honeycutt, P.E., Honeycutt Engineering
Pender County Building Inspections
Linda Lewis
Wilmington Regional Office
Central Files
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Servicel-877-623-6748
Wilmington Regional Office Wilmington, NC 28405-3845 FAX [phone] Internet h2o.enr.state.no.us neV�CithCar011na
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10°% Post Consumer Paper mIndly

State Stormwater Management, Systems
Permit No. SW8 990462 Mod.
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
Mr. Charles Wells and Eagle Investments
Rocky Point Commercial Park
Hwy. 117, Rocky Point, Pender County
FOR THE
construction, operation and maintenance of 5 wet detention ponds 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.
This permit shall be effective from the date of issuance until July 11, 2013 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 in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.5 of this permit. The subdivision is permitted for
18 lots, each allowed a maximum amount of built -upon area, more particularly
described in Section 11.13 of this permit. Lots 1, 2, 3, 4, 5, 6, 7, A, B, C, J, K, and
L must direct their runoff into Pond #1; Lots H & I must direct their runoff into
Pond #2; Lot G must direct its runoff into Pond #3; Lots E & F must direct their
runoff into Pond #4; and Lot D must direct its runoff into Pond #5.
3. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
Page 2 of 9

State Stormwater Management Systems
Permit No. SW8 990462 Mod.
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
Mr. Charles Wells and Eagle Investments
Rocky Point Commercial Park
Hwy. 117, Rocky Point, Pender County
FOR THE
construction, operation and maintenance of 5 wet detention ponds 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.
This permit shall be effective from the date of issuance until July 11, 2013 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 in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.5 of this permit. The subdivision is permitted for
18 lots, each allowed a maximum amount of built -upon area, more particularly
described in Section 11.13 of this permit. Lots 1, 2, 3, 4, 5, 6, 7, A, B, C, J, K, and
L must direct their runoff into Pond #1; Lots H & I must direct their runoff into
Pond #2; Lot G must direct its runoff into Pond #3; Lots E & F must direct their
runoff into Pond #4; and Lot D must direct its runoff into Pond #5.
3. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. Tile final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
Page 2of9

•
State Stormwater Management Systems
Permit No. SW8 990462 Mod.
5.
The following design criteria have been provided
in the wet detention
ponds and
must be maintained at design condition:
Pond Number:
1
2
4
5
a.
Drainage Area, acres:
28.76
3.88
3.79
3.81
1.59
Onsite:
26.87
3.88
3.79
3.81
1.59
Offsite:
1.89
0
0
0
0
b.
Total Built-y2pon Area, ft?:
947,274
152,091
148,735
115,145
62,289
OLots, ft :
821,339
152,091
148,735
115,145
62,289
Roads/Parking, ft2:
51,989
0
0
0
0
Offsite, ft:
73,946
0
0
0
0
c.
Pond Depth, feet:
7.5
6.5
7.0
6.0
5.0
d.
Design Storm:
1"
1"
1"
1"
1"
e.
TSS removal efficiency:
90%
90%
90%
90%
90%
f.
Permanent Pool Elev., FMSL: 27.00
28.20
26.50
30.00
28.50
g.
Provided Surface Area, ft2:
32,702
7,802
7,203
6,468
4,680
h.
Provided Storage Volume, ft3: 124,278
18,259
16,857
10,636
11,412
i.
Temporary Pool Elev., FMSL:
303
30.2
28.5
31.45
30.5
j.
Controlling Orifice:
3.0" cp
1.5" cp
1.5" cp
1.5" q
1.0" T
k.
Forebay Volume, ft3:
29,826
3,750
3,644
2,788
1,609
I.
Max. Fountain Horsepower:
1/2
1/8
1/8
1/8
1/8
m.
Receiving Stream / River Basin: Pike Creek / Came Fear
n.
Stream Index Number:
18-74-46
o. Classification of Water Body: "C Sw"
901-ots 1, 2, 3, 4, 5, 6, 7, A, B, C, J, K, and L must direct their runoff into Pond #1; Lots
H & I must direct their runoff into Pond #2; Lot G must direct its runoff into Pond #3;
Lots E & F must direct their runoff into Pond #4; Lot D must direct its runoff into Pond
#5.
II. SCHEDULE OF COMPLIANCE
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage
feature (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.
2. The permittee is responsible for verifying that the proposed built -upon area for
the entire lot, including driveways and sidewalks, does not exceed the allowable
built -upon area. Once the lot transfer is complete, the built -upon area may not be
revised without approval from the Division of Water Quality, and responsibility for
meeting the built -upon area limit is transferred to the individual property owner.
Page 3 of 9

State Stormwater Management Systems
Permit No. SW8 990462 Mod.
3. If an Architectural Review Committee (ARC) is required to review plans for
compliance with the BUA limit, the plans reviewed must include all proposed
built -upon area. Any approvals given by the ARC do not relieve the homeowner
of the responsibility to maintain compliance with the permitted BUA limit.
4. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not.limited to, those listed
below:
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, acquisition, or sale of all or part of the project area.
The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance. shown on the
approved plan.
5. 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.
7. The stormwater management system shall be constructed in it's entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
8. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
9. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
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, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification.
10. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
11. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent pool
surface.
b. Separated units, where the nozzle, pump and intake are connected by tubing,
may be used only if they draw water from the surface in the deepest part of
the pond.
c. The falling water from the fountain must be centered in the pond, away from
the shoreline.
d. The maximum horsepower for a fountain in each of these permitted ponds is
found in Section 1.5 (1) of this permit.
Page 4 of 9

State Stormwater Management Systems
Permit No. SW8 990462 Mod.
12. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
13. Prior to the sale of any lot, deed restrictions must be recorded, which limit the
built -upon area per lot. The recorded statements must follow the form:
a. The following covenants are intended to ensure ongoing compliance with
State Stormwater Management Permit Number SW8 990462, as issued
by the Division of Water Quality under NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to
the extent necessary to maintain compliance with the Stormwater
Management Permit.
C. These covenants are to run with the land and be binding on all persons
and parties claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded
without the express written consent of the State of North Carolina,
Division of Water Quality.
e. Alteration of the drainage as shown on the approved plans may not take
place without the concurrence of the Division of Water Quality.
The maximum built -upon area per lot, in square feet, is as follows:
Lot 1
75,907
Lot A
77,551
Lot G
148,735
Lot 2
77,899
Lot B
52,867
Lot H
78,350
Lot 3
89,299
Lot C
59,436
Lot 1
73,741
Lot 4
77,899
Lot D
62,289
Lot J
64,295
Lot 5
77,899
Lot E
57,572
Lot K
63,418
Lot 6
59,849
Lot F
57,573
Lot L
35,020
Lot 7
10,000
This allotted amount includes any built -upon area constructed within the
lot property boundaries, and that portion of the right-of-way between the
front lot line and the edge of the pavement. Built upon area includes, but
is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate,
coquina and parking areas, but does not include raised, open wood
decking, or the water surface of swimming pools.
g. All runoff on the lot must drain into the permitted system. This may be
accomplished through providing roof drain gutters which drain to the
street, grading the lot to drain toward the street, or grading perimeter
swales and directing them into the pond or street. Lots that naturally drain
into the system are not required to provide these measures.
h. Each lot whose ownership is not retained by the permittee shall submit a
separate stormwater application to the Division of Water Quality and
receive a permit prior to construction.
14. A copy of the recorded deed restrictions must be submitted to the Division within
30 days of the date of recording the plat, and prior to selling lots. The recorded
copy must bear the signature of the Permittee, the deed book number and page,
and stamp/signature of the Register of Deeds.
Page 5 of 9

State Stormwater Management Systems
Permit No. SW8 990462 Mod.
15. Prior to transfer of the permit, the stormwater facilities must be inspected by
DWQ personnel, and determined to be in compliance with all permit conditions.
Any items not in compliance must be repaired or replaced to design condition
prior to the transfer. Records of maintenance activities performed to date will be
required.
16. The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function at optimum efficiency. The approved Operation and Maintenance Plan
must be followed in its entirety and maintenance must occur at the scheduled
intervals including, but not limited to:
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 structures, orifice, catch basins and
piping.
g. Access to all components of the system must be available at all times.
17. 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.
18. 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.
19. Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event there is a desire for the facilities to change ownership, or there is a
name change of the Permittee, a "Name/Ownership Change Form" must be
submitted to the Division of Water Quality accompanied by appropriate
documentation from the parties involved, including as may be required, but not
limited to, a deed of trust, recorded deed restrictions, Designer's Certification and
a signed Operation and Maintenance plan. The project must be in good
standing with DWQ. The approval of this request will be considered on its merits
and may or may not be approved.
2. The permittee is responsible for compliance with the terms and conditions of this
permit until such time as the Director approves the transfer request.
3. 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 143-215.6A to 143-215.6C.
4. 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.
Page 6 of 9

State Stormwater Management Systems
Permit No. SW8 990462 Mod.
5. 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.
6. 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.
7. Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours.
8. The permittee shall notify the Division of any name, ownership or mailing
address changes within 30 days.
9. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
Permit issued this the 2nd day of December 2005.
NO"ROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990462
Page 7 of 9

State of North Carolina
Department,of Environment. and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERiiM APPLICATION FORM
This form may be p1wocopied for use as an original
L GENERAL INFORM*TiON-
1. Applicants name (specify fie-r me -of 4he-corporatian. individual, etc. who. owns the project):
C.NARl.E5 E, WE_LLS R00rJ1E rc9-A-VESj FgMoD►E 69ZWt4 � 1%Cr(.E 1NVES7iY�Er►7S
2. Print Owner/Signing Official`s name andtifle (person legally resPm%* for-f QMYand compliance):
C-HARES E, WELLS m*NprrpiNrn PAR-TmeP-
3. Mailing Address for person listed in item 2 above:
1(n40 N c- H W Y 53 WEST
City 3 u go W State:. N G Zip: 8 415
Telephone Number.- f 910 ) -703-5000 op- (c110) 259-440-70
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Roc=g POInrf C0Y11MEP2-C1PfLL Pa-12-K
5. Location of ProjK!t (street address):
"1foFIWA4 11-
CCounty: PE1JDr✓2
b. Directions to project (from nearest major intersection):
LXIT = 40 OW HwY ado WEST TAM 21GHT AT ►NTEaSEC-T1oN OP HWY Il
-511-E pfBOLLT liq 11111.E OP1 ►2.IG14T
7. Latitude: 31f ° 2-7' OU " Longitude: -7 7 ° 5 3 a 00 of project
8. Contact person who can answer questions about the project: -
Name: Z31 M HOOF-4 CAtTT Telephone Number:( C110 ) 3 5 0 PO(P3 f
II. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal V Modification
Form SWU-101 Version3.94 Page 1 of 4

2. If this application is being submitted�s the result of a renewal or modification to an existing permit, list the
existing permit number �!A and its issue date (if known) CIA
3. Specify the type of project (check one):
Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major ✓Sedimentation/Erosion Control _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.
W�_:T PONO
2. Stormwater runoff from this project drains to the CAP E FEAR River basin.
3. Total Project Area: 53 - % —7 acres
5. How many drainage areas does the project have? S
4. Project Built Upon Area: I t0 %
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.
POND
Ill • o
Receiving Stream Name
PIKE CQ.E 6h
P i YEE C1e-EEK
Receiving Stream Class
C w
Drainage Area
$ 5
3 Ac2ES
Existing envious- Area
r"JIA
Proposed ImpervioueArea
a 1. 75
3' CQE 5
% Im envious" Area (total)
a o
goc a
Am
NX
On -site Buildings
On -site Streets
9 S
On -site Parking
ti l A
N A
On -site Sidewalks
NIA
NIA
Other on -site
IZ1,331
S a 09 1
Off -site
a 45 . $
,=
Total: 9 4 2-7 3 . 8
Total: 15 a, 09 1
" Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
SiEE ATTA cHEO
Form SWU-101 Version 3.99 Page 2 of 4 s H EIS r—O�"
PONDS 3,4 E

ROCKY POINT COMMERCIAL PARK
1640 NC HIGHWAY 53 WEST
BURGAW, N.C. 28457
BASIN INFORMATION DRAINAGE AREA 3 DRAINAGE AREA 4 DRAINAGE AREA 5
Receiving Stream Name
Pike Creek
Pike Creek
Pike Creek
Receiving Stream Class
C SW
C SW
C SW
Drainage Area
3.79 Acres
3.81 Acres
1.69 Acres
Existing Impervious Area
WA
N/A
N/A
Proposed Impervious Area
3.41 Acres
2.64 Acres
1.43 Acres
% Impervious Area (total)
90%
69%
90%
IMPERVIOUS SURFACE AREA DRAINAGE AREA 3 DRAINAGE AREA 4 DRAINAGE AREA 5
On -site Buildings
N/A
59,600
N/A
On -site Streets
NIA
N/A
NIA
On -site Parking
N/A
55,545
N/A
On -site Sidewalks
N/A
N/A
N/A
Other on -site
148,735
N/A
62,289
Off -site
N/A
N/A
WA
Total:
148,735
115,245
62,289

How was the off -site impervious area listed above derived?
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.
1. 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 squarefeet 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. Swates shall not be fitted 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
constructi0n.
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 forms) listed below must be 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
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Nam River Basin Supplement
Form SWU--109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

f
VI. SUBMITTAL REQUIREMMITS
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.
2. Please indicate that yowhave-prundeclthe-followin&re ed mfor-ma.tiort-by = inthe space
provided next to each item.
Initials.
Original and one copy of the Sto PerrdtApphcation Form-
One copy of the applicable Supplement Forms) for each
o Permit application processing.fee of $4420 (payable to NCDENR)
Detailed narrative description of stormwater treatment/management
Two copies of plans and specifications, including:
- Development/Project name
Engineer and. firm -
Legend
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, colUech'on 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 Cale dations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
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): N O r J EN CL - C T e N G' t 1-J e P-1 NG M •
MailingAddress: BOX 1 5 0 3 -
City: W 11-C" l tJ CO�i O. State: �d C-, Zip: D- '+05
Phone: ( 0-i 1 Q ) 3 S 0-0(f) 31 ..... -- Fax: L 910 ) 3 5 0 —C (0t3 I
VIIL APFLICANrS CERTIFICATION
I, (print or type name of pman listed in General Information, item 2) �fi��lz,(�s 'eF
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constrocteuim-cxg, the approved plans,-tiiatthe mKpired-deed restrictions
and protective crvenilibeo�ded, and that the proposed project complies with the requirements of 15A
NCAC 211 1 17111 -
Date:
Form SWU-101 Version 3.99 Page 4 of 4

SLTRVBY REFERENCE:
TRACT ✓, ROCKY POINT COMMERCIAL PARK
DEED BOOK 2575 AT PAGE 262 1
PENDER COUNTY REGISTRY
lYOPEs�-
1. FEMA FLOOD MAP INFORMA770N.
PENDER COUNTY FLOOD INSURANCE RATE MAP.
MAP PANEL No: 370344 0350 C• FLOOD ZONE- C
MAP PANEL DATE.• DUNE 5, 1989
2 CORNERS ARE MARKED AS NOTED ON MAP.
J. ALL BEARINGS ARE MAGNE770 NOR7H (MB 10, PAGE 11)
4. ALL DISTANCES E HORIZONTAL FIELD MEASUREMENTS.
5. AREA COMPUTED Y 7HE COOfDINA7E METHOD.
I I
RURAL
DRAINAGE EASEMENT
.TURF (RA) ZONING
ffK FROM 1-40. =
LEGEND.
O
E/P (EVS77NG IRON P!P£)
IPS AEON PIPE SLR
OS S77NG MV STAKE)
A7S (NON ROD SEO
o
CMS CONCRETE uavumavr SET)
EOM EMS77A1c 00Na?E7E MONUMENr)
Na,S GW MONUMENT
n
ERRS (EA7STNG RAILROAD SPIKE)
RRSS fRAUOAD &-Mr SET)
N&C (NAIL AND CAP
PK\A(AG (PK OR AIAG NAIL SE7)
®
E04 (EXISTING OLD A94
Ma-rRrY L,NE
NOW-SURYE W LINE
EASEMENT LINE
TRACT 7
N 1021.10"W 258.17'
VICL0rY MAP W. T S)
OLD AXLE
(FLUSH)
SET IN
CONCRETE
CONTROL CORNER
1' Z:-- 102 AREA
• •103 WL w
tp \ am
•-j2t WL
10 WL
TRACT "J"
\AREA RECAP
2.028 ACt 106 WL
M
TRACT "K" 0 c
i
U)
I 1�00 IN,
i
S 7938'50"W SO
(60' R/W) 65.00' !y
14ORTH TRAO E WAY S 1021'10"E 1
PROPOSED 10'
UTILITY EASEMENT
319 WTLND T RACT "H" i
i
i
TRACT "1"
318 WTLND
•\WTLND
315 WEND
\+ AGIvFnc , INAP Bk 1p Pc� Z
1 314 WTLND
PROPOSED PLOT PLAN
& BOUNDARY SURVEY
HARLES
FOR
C���
TRACT J — ROCKY POINT COMMERCIAL PARK ;,,,�►�1nTlllll
ROCKY POINT TOWNSHIP — PENDER COUNTY -• NORTH CAROo GARO���''%
SCALE: 1 " = 100 SEPTEMBER 23, 2005 "«�•.��� '%
1, Manley D. Corr, LS, certify that this plat was drawn under my supervision frorn an I o WL9� S
actual field survey made underi my supervision from informotion as noted hereon; that
the boundaries no surveyed are clearly indicated as dashed linesthat the ratio r L- ZW�• _
Of precision as cal uloted is 1:i10,000t and is correct to the best of my knowledge ' Ar�
and belief. Witness my on 1 Si nature, License Number and Seal 5��.�:(,�.a�
this y of _ AD, 2005. ' '�/�/�"M•"`'
�f1I111{1111,
Manley Can; P MANLEY D. CARR, PLS
NC License No. L 2580 ROBERT H. GOSLEE & ASSOCIATES, PA
E.100 100 200 300 75LAND SURVEEYORS� SLA D PLANNERS3.3
WALLACE, NOR7H CAROLINA 28466
910-285-4210
GRAPHIC- SCALE — FEET FILE No. : PL-12-14

p 19 05 04:03p CHRRLES WELLS REALTY 9102597634 p.1
I
I
I
CHARLES WELLS REALTY
1640 NC HWY. 53 WEST
BURGAW, NC 28425
910-259-4070
910-259-7634 FAX
FAX Hate: 7 — I2 - c-S
TO: Fax Number 0, zO C1,�
FROM: CHRRLES WELLS Fax Number 910-259-7634
Number of Pages Being Faxed including cover sheet.
MESSAGE:

A
\N.A I Michael F. Easley, Governor
Q� William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
September 19, 2005
Mr. Charles Wells, Managing Partner
Eagle Investments
1640 NC Hwy. 53 West
Burgaw, NC 28425
Subject: Request for Additional Information
Stormwater Project No. SW8 990462 Mod.
Rocky Point Commercial Park
Ponder County
Dear Mr. Wells:
The Wilmington Regional Office received previously requested information regarding the
modification to the Stormwater Management Permit Application for Rocky Point Commercial
Park on July 18, 2005. A preliminary review of that information has determined that the
application is not complete. The following information is needed to continue the stormwater
review:
1. As previously requested, please provide a copy of the language of the proposed
amendment to the deed restrictions, in legal format, i.e., a document prepared by
your attorney._ It isn't enough to submit a revised Exhibit A and a note on the
previously recorded deed restrictions saying that Lot 7 will be added. The
language of the proposed amendment must be reviewed by the Division prior to
you recording it, to make sure all of the necessary requirements have been
included, which are: the inclusion of Lot 7 as part of the project area made
subject to the previously recorded restrictions; revising the BUA limits for Tracts
E & F; and adding a BUA limit of 10,000 ft2 for Lot 7.
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received in this Office prior to October 19, 2005, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal of
all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information. The
Division is allowed 90 days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
North Carolina Division of Water Quality 127 Cardina! Drive Extension Phone [phone] Customer Service1-877-623-6748
Wilmington Regional Office Wilmington, NC 28405-3845 FAX [phone] Internet h2o.enr.state.nc.us N'C
1V Re11C /lriB
An Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper XV01711b,

Mr. Wells
September 19, 2005
Stormwater Application No. SW8 990462 Mod.
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone].
Sincerely,
k
"
Linda Lewis
Environmental Engineer
ENB/arl:
S:\WQS\STORMWATER\ADDINFO\2005\990462.sep05
cc:
Jim Honeycutt, P.E., Honeycutt Engineering
Linda Lewis
Page 2 of 2

Mr. Wells
September 19, 2005
Stormwater Application No SW8 990462 Mod
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
ENS/arl: S:1WQSlSTQRMWATERIADDINFQ120051990462.sep05
cc: Jim Honeycutt, P.E., Honeycutt Engineering
Linda Lewis
Page 2 of 2

DETENTION POND ANALYSIS FILE NAME: G:IDATAIWPDATAIWQSIPOND1990462-1.WK1
PROJECT #: SW8 990462-1 REVIEWER: L. Lewis
PROJECT NAME: Rocky Point Commercial Subdivision Pond 1
DATE: 19-Sep-05
Receiving Stream: UT Piko Creek Class: C SW
Drainage Basin: Cape Fear Index No. 18-74-46
Site Area 53.77 acres
Drainage Area 12 s 5W.1 0 square feet Area = 28.76 acres
IMPERVIOUS AREAS
Sold Lots 1-5 & A @100%
Lots B,C,J,K,L, & 6@90%
Roads
Offsite @90%
Add Lot 7
TOTAL
SURFACE AREA CALCULATION
% IMPERVIOUS 75.62%
Des. Depth 7.5
TSS: 90
Rational C
476454.00
square feet
1.00
334885,00
square feet
1.00
51989.00
square feet
1.00
73946.00
square feet
1.00
10000.00
square feet
1.00
square feet
9472E4•.00
square feet
Rational Cc= 0.83
SA/DA Ratio 2.58%
Req. SA 32333 sf
Prov. SA 32 702 sf
VOLUME CALCULATION * place a "1" in the box if Rational is used
Rational ?*
1
I FOREBAY
Des. Storm
1.00
inches
Perm. Pool Volume=
143418
Rv=
0.73
Req. Forebay Volume=
28683.E
Bottom
19.5 msl
Provided Volume=
29826.00
Perm. Pool
27.00 msl
Percent=
?0.8%
Design Pool
30.3 msl
Elev. Area
Vol.
Acc. Vol
Vol. Met at Elev.
29.38
28 35600
34151
34151
Req. Volume
86573
cf
29 38570
37085
71236
Prov. Vol. @30.3
124278
cf
30 41612
40091
111327
31 44726
43169
154496
ORIFICE CALCULATION
Avg. Head =
1.59 ft
Q2 Area =
' 1.89
sq. in.
Flow Q2, cfs
0.501 cfs
Q5 Area =
4.76
sq. in.
Flow Q5, cfs
0.200 cfs
Orifice Area
7.07
sq. in.
No. of Orifices
1
Q=
0.298
cfs
Diameter, inches
3.00 weir H x W
in
x
in
Drawdown =
3.4 days
COMMENTS
Surface Area and Volume are within Design Guidelines. Orifice is too large.

DETENTION POND ANALYSIS FILE NAME: G:\DATA\WPDATA\WQS\POND\990462-4.WK1
PROJECT #: SW8 990462-4 REVIEWER: L. Lewis
PROJECT NAME: Rocky Point Commercial Subdivision Pond 4
DATE:
19-Sep-05
Receiving Stream:
UT Pike Creek
C!ass:
C Sw
Drainage Basin:
Cape Fear
Index No.
18-74-46
Site Area
53.77 acres
Drainage Area
16/6' 8 OO square feet
Area =
3.81 acres
Offsite=
0.00 acres
IMPERVIOUS AREAS
Lots E & F Rational C
Building 59600.00 square feet 1.00
Parking 55545,00 square feet 0.95
square feet
square feet
square feet
square feet
TOTAL 115145.00 square feet Rational Cc= 0.77
SURFACE AREA CALCULATION
% IMPERVIOUS 69.36%
Des. Depth 6
TSS: 90
VOLUME CALCULATION
Rational ?*
1
Des. Storm
1.00 linches
Rv=
0.67
Bottom
24 fmsl
Perm. Pool
30.00 fmsl
Design Pool
31.45 fmsl
Req. Volume
10636 cf
Volume met @
31.45 fmsl
Prov. Volume @Do 10636 cf
ORIFICE CALCULATION
Avg. Head =
Flow Q2, cfs
Flow Q5, cfs
No. of Orifices
Diameter, inches
Drawdown =
0.69 ft
0.062 cfs
0.025 cfs
1
1.50 weir HxW
2.5 days
SA/DA Ratio 3,87%
Req. SA 6421 sf
Prov. SA 6468 sf
* place a "1" in the box if Rational is used
FOREBAY
Perm. Pool Volume= 13454
Req. Forebay Volume= 2690.8
Provided Volume= 2788.00
Percent= 20.7`'io
Elev.
Area
Volume
31
7650
7055
31.5
8268
11034
Q2 Area =
Q5 Area =
Orifice Area
Q=
in
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines
2.21
sq. in.
0.88
sq. in.
1.77
sq. in.
0.049
cfs
x
in

HONEYCUTT ENGINEERING CO.
CONSULTING ENGINEERS
610 HIDDEN VALLEY ROAD
WILMINGTON, NC 28409
910-350-0631
July 15, 2005
State of North Carolina
Department of Environment
And Natural Resources
Division of Water Quality
Re: Rocky Point Commercial Park
Stormwater Project Number SW8 990462
Dear Mrs. Lewis:
I am addressing your 7/11/05 comments as follows:
1. I am submitting a revised map to include Lot 7 in the drainage area of Pond 1.
2. 1 have included a copy of the previously recorded deed restrictions and a copy of the
proposed amendment to the deed restrictions. The proposed amendment includes
Lot 7 and its BUA limit of 10,000 sq.ft. and the updated BUA limits for Tracts E & F.
3. The total onsite area for pond 1 is 26.86 acres and is shown as such in the
calculations. The total area (onsite and offsite) is 28.75 acres and is also in the
calculations. I must have transposed the wrong number to the application. I am
submitting replacement pages of the application with the correct information.
4. The permanent pool elevation has been 27.0 for as long as I can remember and I
show that number on all the paperwork I sent you last year so I don't understand your
comment. I will submit new pages for the wet pond supplement.
5. 1 am submitting revised pages of the Pond 4 application to correct the drainage area.
The difference in the 3.81 and the 4.25 acres is the amount of unusable land isolated
by the wetlands at the rear of the site.
6. The program used for the calculations rounds up in some places and rounds down in
others. If you refigure your calculation using 0.769 (Ccomp at the top of page 9) it
will meet the 1" requirement. On page 1 Ccomp is listed as 0.77 and I think that's
what is causing the problem.
7. The calculations have been revised so they won't be so confusing for you.
Please call if you have any questions.
Sincerely,
OJJ
Wendy Richards.
RECEIVED
JUL 1 8 2005
BY:

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
Project Number 04045 12/7104, Revised 714 05
167696 + 160774
'lots '= `lots = 7.5
43560
74770 + 68477
wetland 43560 'wetland = 3.3 acres
$4624 + 91394
usable'= 43560 Ausable = 3.81 acres
8302 + 10903
Aunusable 43560
Aunusable = 0.441
Apond2 dots - Awetland - Aunusable
A = 0 Ao = 0
acres
Apond2 = 3.81 acres .....area on site draining to pond 4
offsrte 43560 1�S1W acres
Atotal Apond2 + Aomite A l 3.$112
55545
Apaved '= 43560
Nave
d = 1.275 acres ...paved areas
59600
Abldg := 43560
Abldg = 1.368 acres building area
.....offsite area draining to pond 4
acres ...total area draining to pond 4
Aother Atotal - Apaved - Abldg Aother = 1.2
Cpre 0.3 ...pre -development C Cj,14 = 1.00
Cpaved 0.95 ...paved area C
ed Abldg
Ccomp [Cpre.(Alot'ler
Atotal + Cpaved'(tota+ Cbldg- Atotal
)]
Ccomp = 0.77 ...composite C (post -development)
L := 583 ft ...hydraulic length
H := 4 ft ...height
L3 .385 L3 .385
Tc := if
H128 < 5' 5' b128
Tc = 7.17 ...time of concentration
acres ...total area not impervious
CARO��'y.
07�0� ESSI0
SEAL
0-524
00;�
IN
i�ECEIVED
JUL 18 2005
Dw@
7/
1
f.c.

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
Determine size of pond without vegetative filter:
depth- 6 ft
I1bIP% :_ 'paved + Abldg IMPoIo 0.6936
total
RVEP%70 := .039
xi := vyi :=
60 IMP°lo60
70
1070
vx. = X-
1' 1
BAP := linterp(vx, vy, lMPolo• 100)
iW = 0.038678
DA — (Atotal)'43560
SAreq = (RW)•DA
SAreq = 6421 sq.ft. ...Required surface area
slope I := 6 ...min. slope of shelf
siopc2 := 2.5 ...min. slope of pond below shelf
shelf := 2 ft. ...depth of shelf
w:= (depth — shelf)-slope2.2 + shelf•slopel-2
w = 44 ...minimum width of permanent pool
w = 44 ft. - width chosen
1:= 3•w
1= 132 ft. ...min. length of permanent pool
i := 147 ft. - length chosen
SAprov := l•w SAQrov = 6468 ...sq.ft. of surface area provided must be >= SAreq = 6421
5

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
Determine volume of permanent pool in order to size forebay:
j := 0.. 6
k := L. 6
A.
J
D .:_
J
6468-ft2
area of contours
7 5�4
0
32o•ft2
1
1•ft
460•ft2
� 33cto
7 ZIIS
1
1-ft
1770-ft2
-2j 0
1
1 ft
1130-ft2
7 �5
1
1 ft
540-W
1
0-ft
,?Z'%
1 ft1
corresponding depth from contour above
Vk := Ak-1 + Ak-Dk ...incremental volume
2
Vpond := E V ...total volume equals the sum of the incremental volumes
Vpond = 13454 ft3 _ ...total volume in permanent pool
Vrequired := •20`Vpond ...forebay volume equals 20% of total pool volume
Vrequired = 2591 ft3 ...cu.ft. required in forebay
Determine volume in forebay:
m— 0.. 7 n := L. 7
area = M depm =
0- ft2 ...area of contours 0 ft1
40-ft2 1-ft1
130-ft2 141:
2704? 1-ft1
460412 1.01
1008-ft2 141:
17604? 1-ft1
corresponding depth from contour below
6

Drainage Caiculations for
Lots E and r
Rocky Point Mini Storage
Highway 117 N
arean-1 + arean
-me n *- 2 depn ...incremental volume
Vlbrebay .- Evinc ...total volume in forebay equals the sum of the incremental volumes
Vforebay = 2788 2 ...total volume in forebay must be >= Vrequired = 26912
forebay VloreVonpondy 100 forebay = 20.7 ...per cent forebay volume is of total pond volume
Develop age -storage function:
m - 0.. 6 n := L. 6
contour := 30
increment := .5 ...ft
contour := contour-t + increment contour3 := 31 A5
contour..contours of proposed pond
In=
...area of contours of proposed
30
a :-
M pond contours (sq.ft.)
30.5
6468
31
7050
31.45
7650
8268
32
8904
32'S
9558
33
10230
n = an 2} a-(conto n - contour-1) ...incremental volume (cubic ft.)
S0 := 0 ...initial storage
sn ' Sn-1 + n ...cumulative storage (cubic ft.)
stagen = contour - contour,
fin'= ln(Stagenl ...natural lop of stage
n '_ a n) ...natural log of storage
7

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
contours of
area of
incremental
proposed
pond
contours
volume
eontou =
am =
vM _
m
30
6468
0
30.5
7050
3379.5
31
7650
3675
31.45
8268
3581.5
32
8904
4722.3
32.5
9558
4615.5
33
10230
4947
x = submatrlx(1nZ,2,6,0,0)
y: submatzix(1nS,2,6,0,0)
sloe m slope(x,y) slope = 1.15
b­ intemept(x,y) b = 8.85
Ks := a bKs = 6995
_1_
S slope
Zestm :_ � ...stage -storage function
Zest = Should compare closely with
0
0.53
1.01
1.44
1,98
2.5
3.03
cumulative
stage
natural
natural
volume
log of
log of
stage
storage
S -
m
stage =
1nZn =
1nSn =
0
3379.5
0.5
-0.6931
8.1255
7054.5
1
0
8.8614
10636
1.45
0.3716
9.272
15368.4
2
0.6931
9.6394
19973.8
I
[31
0.9163
9,9022
24920.8
1.0986
10.1235
stage
0
0.5
1
1.45
2
2.5
3
8

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 H
Determine storage volume required for treatment of first inch of runoff:
Ccomp = 0.769
V := 12 (Atotal).43560•Ccomp
V = 10636 cubic feet of storage required
Solve for depth "d" to provide required storage for first inch of runoff:
d := 1.5 ...guess value
1•w + (1 + 6-d)-(w + 6-d)
f(d) := 2 d ...function of d for rectangular pond wl3:1 side slopes
g(d) V
d:= root{(f(d) - g(d)),d3
d = 1A5 ft. - depth required to provide required storage for 1 inch with site fully developed
Q2day := 2 24 60 60 Q2day ' 0.0615 cfs ...Max discharge for 2 day drawdown
V
Q5day5.24.60.60 Q5day = 0.0246 cfs ...Max discharge for 5 day drawdown
g = 32.2 Cdo := .6 ...orifice coefficient
h := 2 h = 0.7 ft ...avg. head
Q2day
Aorifice
Cdo (2 g h).5
.5
D2:= 4 Aorifice .12
3.14
Q5day 0.0246 cfs
Q5day
Aorifice
5
Cdo (2 g h).
.5
D 4• Aorificel .12
5 3.14 /j
Select drawdown orifice size:
Do := 1.5 in.
Aorifice = 0.015 Square ft.
D2 = 1.7 in. - for 2 day drawdown
Aorifice 0.006 Square ft.
D5 = 1 in - for 5 day drawdown
E

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
Stage Discharge for Riser/Bafrel Spiliway with Emergency Weir:
g — 32.2 ...acceleration due to gravity
dia := 3 ...diameter of riser (ft.) (enter 0 if rectangular)
len := 0 ...length of opening if rectangular (ft.) (enter 0 if circular)
wid .= 0 ...width of opening if rectangular (ft.) (enter 0 if circular)
grate := 0 ...area of openings in grate if rectangular (enter 0 for circular)
L := il[dia * 0,7r•dia,2-(len + wid)] ...perimeter of riser (ft.)
2
A :_ ' dia # 0, 7C• (d�) , if(grate * 0, grate, len-wid)
A = 7.1 ...area of riser as orifice (sq.ft.)
Eta = contour, + d Etop = 31.45 ...minimum elevation of top of riser (ft.)
Etop = 31.45 ...chosen elevation for top of riser
Cwr := 3.33 ...weir coefficient for riser
Cdr := 0.60 ...Orifice coefficient of discharge for riser
�_
Nb 1 ...Number of barrels
Values for Orifice Coefficient of discharge:
D - 15
b '
...diameter of barrel (in.)
Entrance Condition
CA
Typical default value
0.60
Ebinv = 29.5
...invert elevation of barrel must be r_ contour = 30
Square -edged entrance
0.59
0
Concrete pipe, grooved end
0.65
Cdb := 0.60
...Orifice coefficient of discharge for barrel
Corr m#1 pipe, mitred to slops
0.52
corr mtl pipe projecting from fill
0.51
Check drawdown time when water level is at top of discharge structure:
Eoinv contour,
Do
Eocl := contour, + 2 Eocl = 30.1
— Eocl)
h := Stop cl h = 0.694
2
D
do ,.= ° 12 ft. -diameter of orifice
d
Aorifice = 3.14• 2 Aorifiee 0.0123
...elevation of center line of orifice
.avg. head
.sq. ft.
10

Drainage Calculations for
Lots E and F
Rocky Point Mini Storage
Highway 117 N
1
q2 '= Cdo`Aorifice (2'g'h) 2 q2 = 0 cfs
vtop ' Ks'(Etop Eoinv) slope . ft3
V = 10714 ft3 - volume of storage when water level is at top of
top discharge structure - from stage -storage function
q2 := g1cfs q2 = 0 efs
drawdown :_
ytop
q2
drawdown = 2.52 day Must be greater than or equal to 2 days and less than or ...O.K.
equal to 5 days
Size overflow spillway to pass vfl year peak flow:
Hew := .5 ...driving head over emergency weir (ft.)
Cw = 3.0 ...weir coefficient for emergency weir
LW
Q50
.5
Cw'Hew
Lw,= 11.6 ...ft. (minimum)
Iw:► 12 ...ft. length chosen
Ecr := 33.00 ...crest elevation of emergency weir
Freeboard := i ft.
Etopoibankmin Eq. + 1�, + Freeboard Etopoibankmin = 34.5 ft. minimum
Etopolbank := 34.50 ....selected top of bank elevation
inc:= .15 ...amount to increment elevation (ft)
u = 0..25 v L. 25
elev0 = contour0 ale V := ale v-1 + inc
Calculate discharge through riser.
hwe := eie u - Stop ...driving head for riser acting as a weir
hou (ele u - Etop) ...driving bead when riser is acting as orifice
3
rwc:_ ' elev — Etop < 0,0,CWr-L•thw )2
11

rN
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
July 11, 2005
Mr. Charles Wells, Managing Partner
Eagle Investments
1640 NC Hwy. 53 West
Burgaw, NC 28425
Subject: Request for Additional Information
Stormwater Project No. SW8 990462 Mod.
Rocky Point Commercial Park
Ponder County
Dear Mr. Wells:
The Wilmington Regional Office received a modified Stormwater Management Permit
Application for Rocky Point Commercial Park on May 8, 2005. A preliminary review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
1. Please provide a revised drainage area map, which shows the inclusion of Lot 7
to the drainage area of Pond 1.
2. Please provide a copy of the previously recorded deed restrictions and a copy of
the proposed amendment to the deed restrictions, in legal format. The proposed
amendment must cover the following items: the inclusion of Lot 7 as part of the
project area subject to the previously recorded restrictions; shows the revised
BUA limits for Tracts E & F; and adds a BUA limit of 10,000 ft2 for Lot 7.
3. There is a discrepancy in the drainage area for Pond 1. The calculations use
26.87 acres, but the application. reports 27.673 acres. Please reprise as needed.
4. The wet pond supplement for Pond 1, issued with the July 11, 2003, permit, lists
a permanent pool elevation of 24.50. Please revise the supplement for Pond 1 to
correct this to elevation 27.0, as indicated on the modified plans.
5. The application reports the drainage area for Pond 4 as 4.25 acres, but the
calculations use 3.81 acres. Please revise as needed.
6. The storage elevation of 31.45 in Pond 4 does not provide enough volume to
meet the 1" requirement. Please either raise the temporary pool elevation to
31.5, or use Scheuler's volume calculation method as outlined in the BMP
Manual.
7. Please combine the individual boxes in the volume calculations that contain the
elevation, surface area, incremental volume and accumulated volume into one
table. it is much less confusing to read, and allows the Division to track down
where an error has occurred.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Service1-877-623-6748
Wilmington Regional Office Wilmington, NC 28405-845 FAX [phone] Internet h2o.enr.state.nc.us
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper
_ lne
-UM,if Carolina
')'R'llly

Mr. Wells
July 11, 2005
Stormwater Application No. SW8 990462 Mod.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received by this Office prior to August 10,
2005, or the application will be returned as incomplete. The return of a project will
necessitate resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for
a time extension to the Division at the address and fax number at the bottom of this
letter. The request must indicate the date by which you expect to submit the required
information. The Division is allowed 90 days from the receipt of a completed
application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel ,free to call me
at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
ENBlarl: S:IWQSISTORMWATERIADDINFO120051990462.ju105
cc: Jim Honeycutt, P.E., Honeycutt Engineering
Linda Lewis
Page 2 of 2

Rocky Point Commercial Park
Allowable Built Upon Area Calculations
LOT
TOTAL
USEABLE
PER CENT
IMPERVIOUS
NUMBER
LOT AREA
AREA
IMPERVIOUS
AREA ALLOWED
1
75907
75907
100
75907
2
77899
77899
100
77899
3
89299
89299
100
89299
4
77899
77899
100
77899
5
77899
77899
100
77899
6
77899
66499
90
59849
7
47321
47321
21.1
10000
A
77551
77551
100
77551
B
64753
58741
90
52867
C
72038
66040
90
59436
D
106134
69210
90
62289
E & F
328470
166018
69.36
115145
G
266952
165261
90
148735
H
286078
87056
90
78350
1
183758
81934
90
73741
J
88402
71439
90
64295
K
77665
70464
90
63418
L
49402
38911
90
35020
M
67650
59912
0
0
TOTAL
2192976
1525260
1299599
NOTES: 1. ALL NUMBERS IN SQUARE FEET
2. USEABLE AREA DEFINED AS TOTAL LOT AREA MINUS AREA OF
WETLANDS AND EASEMENTS WHERE APPLICABLE
RECEIVED
MAY 0 8. 2005
P$OJ #J �W O ¢&?

ROCKY POINT COMMERCIAL PARK
ROCKY POINT, N.C.
NARRATIVE ON MODIFICATIONS TO STORMWATER MANAGEMENT PLAN
Pond -1-calculations were revised to allow 10000 square feet of parking to be built
on Lot 7 which had been permitted with no impervious area allowed. This
revision required no changes to Pond 1.
Pond 4 calculations were revised to reflect what the owners of the property are
actually planning to build. The site plan was revised to reflect the new location of
Pond 4, and the detail sheets were revised to reflect the changes to the
structures of Pond 4
RECEIVED
MAY 0 8 N05
Pxoa # �.���4c) -

• s
`
Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
Project Number 8022 Pond 1
5110/02 - Revised 12/02/02
1170433
Revised 3/2/03
43560 Asite = 26.87
...area of site Revised 7/7103I/
130602
Arow Arow=
3 acres .....right of way area on site draining to pond 1
43560
Lotl - 75907 Lotl = 1.74
acres LotA := 77551 LotA = 1.78
43-560
43560
Lot2 — 77899 Lot2. = 1.7.9
LotB := 64753 LotB = 1.49
43560
43560
Lot3 _ 89299 Lot3 = 2.05
LotC := 72038 LotC = 1.65 RECEIVED
43560.
43560
I ot4 77899 Lot4 = 1.79
Lott := 88402 LotJ = 2.03 MAY 0 2005
43560
43560
I.ntS _- 437899 564 �� = 1.79
LotK := 77665
LotK = 1.78
43560 P.O.
Loth = 77899 W6 = 1.79
LotL := 49402 LotL = 1.13
43560
43560
Lot? := 47321 L,ot7 = 1.09
LotA4 := 85898 LotM _ 1.97
43.560
43560
'sold:= I °tl + L012 + L.ot3 + Lot4 + Lot5 + LotA Asold = 10.9 acres ....area of lots already sold
Aumnld. = Lot6 + Lot7 + LotB + LotC
+ LotJ + LotK + LotL + LotM
i4'uunsold = 12.93 acres ....area of lots not already sold
Apondl Asite Apondl = 26.869 acres .....area on site draining to pond 1
Check:
Asold + Aunsold + Arow = 26.869
should equal Apondl = 26.869
EasementB:
EasementB = 0.14 ...area of drainage easeme f " is
43560
- 5998
EasementC
R�'�dc�'*SS �,�
EasementC = 0.14
43560
SEAL
9838
Easemend :=
Easement) = 0.239594
43560
7201
EasemcntK:=
43560
EasementK = 0.17
10491
err q�n � 1
EasementL.:=
EasementL = 0.24
43560
6151
� JI vlr
EasemcntM =
EasementM = 0.14
43560
11400=
Easement6 :
Easement6 = 0.26
43560
1

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
AreawetlandJ _ 7125 Areawetland7 = 0.16
43560
...area of wetlands on Lot J that will not be developed
imppe.cent:= .90 ...assume 90% of the available area on unsold lots is impervious
impB = (LotB — EasementB)-imppercent'43560
impB = 52867 impervious areas by lots
impC :_ (LotC — EasementQ4mppe cen f43560
impC = 59436
impJ :_ (LotJ — EasementJ — Areawetlan&)-imppercent-43560
impJ = 64295
impK :_ (LotK — EasementK)-imppercent-43560
impK = 63418
impL :_ (LotL — EasementQ-imppercen f43560
impL = 35020
impM = 0
hnpM = 0
imp6 :_ (Lot6 — Easement6)-imppe cent-43560
ON = 59849
imp7:= 10000
impB + impC + ixnpJ + impK + impL + impM + imp6 + unp7
unpervi°unsold
43560
imperviousunsold = 7.92 acres ...area of impervious surface allowed on Lots B,C,J,K,L, Lot 6 and Lot 7
Amad.:= 51989 Amed = 1.19 acres ...area of paved roads
43560
imperviousonsite := Asold + ""peM011Sunsold + Aroad •..assume 100% of sold lots are impervious
imperviousonsite = 20.05
82162 = 1.89 acres .....offsite area draining to pond 1 - scaled from USGS
A°�� 43560 Aoffsite
topo maps and measured along right of way along 117
imperviousoffsite Aoffsite--9 ...assume 90% of offsite area is impervious ...REMISED FROM 30%
imperviousoffsite = 1.7
Atotal := Apondl + Aoffsite Atotal = 28.7556 acres ...total area
Aimp = iYnperviousoffsite + imperviousonsite
Aimp = 21.75 acres ...impervious areas
Aother Atotal — Aimp Aother = 7.01 acres ...total area not impervious
Cpre _ 0.3 ...pre -development C Cimp := 1.00 ...paved area C
C _ C imperviousoffsitc + imperviousonsite + C Aother
comp imp' Atotal pre' Atotal
Ccomp = 0.83 ..-composite C (post -development) for entire drainage area
Apondl — imperviousonsite peMOusonsite
Consitecomp == Cpre+ Cimp'
Apondl Apondl
Consitecomp = 0.82 ...composite C (post -development) for onsite area
N

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
Now compute runoff depth and time to peak for 100 yr. storm:
(P100 - 0.2.5)2
R100depth := P + 8 R100depth = 5.82 in. ...runoff depth
100
R100vot:100depth'(At�)-43560. 1
= R
12
TWO p := R100depth-(Atotal) 1-43560. 1
1.39-(Q100) (12) 60
T100p = 51.45 ...time to peak flow
R100vol = 607839 cubic feet ... runoff volume
TWO
AT100 := 10 P AT100 = 5.15 ...time- increment for routing 100 year storm
Determ.!no size of pond. vAthout vegetative filter
depth := 7.5 ft
1N1P% = Aunp RAP% = 0.7562
Atotal
IMP%70 := .023
IlVIP%80:= .028
xi := vyi
70 %70
80 %80
vx. = x.
1MP := linterp(vx, vy,1MP%-100)
1MP = 0.025812
DA := (Atotal)-43560
SAYeq := (IMP)-DA
SATeq = 32333 sq.ft. ...Required surface area
slope.l := 6 ...min. slope of shelf
slope2 := 2.5 ...min. slope of pond below shelf
shelf := 2 ft. ...depth of shelf
w := (depth - shelf)-slope2.2 + shelf. slope s•2
w = 51.5- ...minim.um width of permanent pool
w := 83 ft. - width chosen
1:= 3-w 1= 241 ft. ...min. length of permanent pool
1:= 394 ft - length chosen
is 0..1
6

Drainage Calculations for Rocky Point 7
Commercial Park
Highway 117 N
Rocky Point, NC
SAprov = 1•w SAplov 32702 ...sq.ft. of surface area provided must be >= SA1eq = 32333
Determine. volume of permanent pool. in order to size forebay:
j := 0 .. 8 k := L. 8
A =_ ...area of contours Dj corresponding depth from contour above
t 434iScf FIO
2441(a
Z011v
1g(015
I (AP3d
1055
1•fti
1-ft
1•ft1
1 •ftl
1 •ftl
MPRO
1 •ftl
5(PV.75
.5•$1
Vk:= �` 2+ Dk ...incremental volume
Vpond V ••total volume equals the sum of the incremental volumes
Vpond= 143418ft3• ...total volume in permanent pool
Vrequired := •20•Vpond ...forebay volume equals 20% of total pool volume
Vrequired = 28684 e ...cu.ft. required in forebay
Determine volume in forebay'
m=0..8 n:=1..8
area := dep •_
m ...area of contours M
14A
°•ftl
.5•ft1
260
3►�
141
Hf'I
1-tt1
osu
5(0*
1•ft1
�3(l
1J
correspondingdepthfrom contour below
'Z61$zsSr4

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
arean-1 + area
Vinc = •fin ...incremental volume
n 2
Vforebay:= Ivinc ...total volume in forebay -equals the, sum of the incremental volumes
V fO,eba,.= 29826 ft3 ...total volume in forebay must be >= Vrequiied = 28684 ft3
ore
forebay.- V pondy
Von100 fiorebay-= 20.8
Develop stage -storage function:
m := 0.. 6 n := L. 6
contour0 := 27.00
increment : 1 ...ft
contour := onto n-1 + increment
contour rn - ...contours of proposed. pond
27
28
29 -
30
31
32
33
..per cent forebay volume is of total pond volume
a
m
2702
5600
8570
1612
726
7912
1170
..area of proposed pond contours (sq.ft.)
n = an- 2 n (contour - contour _1} incremental -volume (cubic ft)
S0 _ 0 _._initial storage..
sn'- S�1 + cumulative storage (cubioft.). SIn
0
34151
71236
111327
154496
200815
250356
V
In
0
34151
37085
40091
43169
46319
49541
8

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
stage := contour contour0 stage =
1
2
3
4
R
lnZn := ]n(stagen) ...natural. log of stage Ins n' k(Sr)- ...natural log of storage
lnZ = 1nS =
n n
0 10.4385
0.6931 11.1738
1.0966 11.6202
1.3863- 11.9479
1.6094 12.2101
1.79.18- .- 12.4306
x = subma1rix(luZ,2,6,0,0)
y:= submatrix(1nS,2,6,0,0)
slope := slope(x,y) slope = 1.14
b, = intcrcept(x,y) b = 10.37
Ks := eb Ks = 31982.36
1
S slope
zest m := _ m .,.stage -storage function
Ks
ZestIn=
Should compare closely with : stagem =
0
0
1.06
1
2.a2
2
2.98
3
3.97
4
4.99-
5
6:05
6
ileterRnine-storage- voiuRne requived for trea.#ne #, of first inch of runoff:
Ccomp = 0.83
9

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
V 1.(Atotal).43560•Ccomp
12
V = 86572 cubic feet of storage required
Solve for depth-"d" to -provide required -storage for first inch of runoff:
d = 1.5 ...guess value
i(d) — 1 w+ (1 + d) (w+ 6 d) d ...function of d for rectangular pond w/3:1 side slopes
g(d) := V
d := root[(f(d) — g(d)), d]
d = 2.39 ft. - depth required to provide required storage. for 1 inch with site fully developed
V 0.501 cfs ...Max discharge for 2 day drawdown
Q2 - 2.24.60.60 Q2 Y g y
_ V
5.24.60.60 Q5day = 02094 cfS ...Max discharge for 5 day drawdown
g := 32.2 Cdo:= .6 ...orifice coefficient
h d h= 1_19 ft ...avg. head
Aorifice - Q2day Aorifice = 0.095 Square ft.
Cdo(2 g h)S
.5
D2 :=(4- Aord'ice 12 D2 : 4.18 in. - for 2 day drawdown
3.14
Q5day = 0.2004 cfs
Q5day Aorifice- Aorifice = 0.038 Square ft.
Cdo (2 g h).5
.5
E15 = 4• A"ifiee') 12 D5 = 2.64 in - for 5 day drawdown
3.14
Select drawdown orifice size:
Do := 3 in.
Stage Discharge for Riser/Barrel Spillway with Emergency Weir:
g:=32.2 —acceleration due to gravity
dia := 4 ...diameter of riser (ft.) (enter 0 if rectangular)
leg := 0- ...lengtty of opening -if rectangular (ft.) (enter 0 if circular)
wid := 0 ...width of opening if rectangular (ft.) (enter 0 if circular)
grate :=. 0- ....area -of openings -ingrate -if rectangular (enter 0. for circular-)
10

Drainage Calculations for Rocky Point
Commercial Park
Highway 117 N
Rocky Point, NC
L := iCdia * 0,,x-dia,2.(len + wid)] ...perimeter of riser (ft.)
2
A:= Jdia # 0,7r- (�) ,if(grrate * 0,grate,len-wid)
A = 12.57 ...area of riser as orifice (sq.ft.)
Etop := contour0 + d Etop = 29.39 ...minimum elevation of top of riser (ft.)
Nr := 2
Etop = 30.30 ...chosen elevation for top of riser
Cwr-:-= 3.33 ...weir coefficient for riser
Cdr := 0.60 ...Orifice coefficient of discharge for riser
Nh := 2. ...Number of barrels
Db = 30. ...diameter of barrel (in_)
Ehinq = 27.0 ...invert elevation of barrel must be <_ contour, = 27
Cdb := 0.60 ._.Orifice coefficient of discharge for barrel.
Values for Orifice Coefficient of discharge:
Entrance Condition
CA
Typical default -value
0.60
Square -edged entrance
0.59
Concrete pipe, grooved end
0.65
Corr mtl pipe, mitred to slope
0.52
corr mflpipe projecting from fill
0.51
Check drawdown time when water level is at top of discharge structure:
Eoinv := contour0
Do
Eocl := contour0 + 2 Eoc1= 27.13
12
- Eoc
h :_P h = 1.588
2
Do
do - 12 ft. - diameter of orifice
2
Aonfice := 3.14(12J
-
1
q2:= Cdo-Aorifice'(2-g-h)
2
...elevation of center line of orifice
.avg. head
Aorifice = 0.0491 ...sq. ft.
q2 = 0.3 cfs
,�• slope 3 - volume of storage when water level is at top of
Vtop .- '4�tap - EOQ .$ discharge structure - from stage -storage function
Vtop _= 125143$3 ...compare with volume for 1" runoff calculated above V = 86572
q2 := q2-cfs q2 = 0.3 cfs
drawdown:= V-f
3
q2
11