SW8960518_Historical File_19981008

ROY COOPER,
Goyrrnor
DIONNE PIELLhGATTi
saw
11i21AN VVT.ENN
October 8, 1998
Mr. Robert Wembach, President
Beachwalk Development, Inc.
1009 N. Lake Park Boulevard
Carolina. Beach, NC 28428
Dear Mr. Weinbach:
NORTH CAROLINA.
EwArwUnw"QuaRty
Subject: Permit No. SW8 960518
Beachwalk @Kure Beach
High Density Subdivision
New Hanover County
Stormwater Project
The Wilmington Regional Office received the modification to the Stormwater Management Permit Application for
Beachwalk @Kure Beach on October 8, 1998. 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 960518, dated October 8, 1998, for the construction of the project, Beachwalk @Kure
Beach.
This permit shall be effective from the date of issuance until September 9, 2006, 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.
If you have any questions, or need additional information concerning this matter, please contact Linda. Lewis, or
me at [phone].
Sincerely,
RSS✓arl
cc:
Rick Shiver
Water Quality Regional Supervisor
S:\WQS\STORMWA'INPERMIT1960518.APR
David Hollis. P.E.
Bill Hanna, Town of Kure Beach Inspections
Tony Roberts, New Hanover County Inspections
Betty Medlin, Town of Kure Beach Mayor
Beth Easley, New Hanover County Engineering
Linda Lewis
Wilmington Regional Office
Central Files
QNorth Carolina Department oflrmronmental Q iaftty 1 Dtvom of Energy. Mmer- l and Land llesourcts
Wiltem9Wa Regional office , W Cardinal Drive Extension I W11= pm Nm" Carolina 2W5
'SO)
910.79b 7215

State Stormwater Management Systems
Permit No. SW8 960518
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
TjeaeAwa/k Development, Me.
,geaeA walk @Kure geaeA
New Hanover County
FOR THE
construction, operation and maintenance of a detention pond in compliance with the provisions
of 15A NCAC zH .1000 (hereafter referred to as the 'stormwater ru/esj and the approved
stormwater management plans and specifications avid 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 September 9, 2-006 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.
z. This stormwater system has been approved for the management of stormwater runoff as
2

State Stormwater Management Systems
Permit No. SW8 960518
described on page 3 of thus permit, tke Project Data Sheet. Tke Beackwalk development is
permitted for 70 single family lots, Back allowed 4,000 square feet of built -upon area,
and 20 duplex buildings, each allowed 4,000 square feet of built-upoK area. Additionally,
tke pond will accept offsite runoff From tke neigkboring Kure Dunes Phase 11 and Ilf
development, a maximum of 426,257 square feet. Refer to Permit *SW8 920807 and
#SW8 g50709. Tke pond is designed for a total of 1,057,271 square feet of built -upon
area.
3. Approved plans avid specifications for tkis project are Incorporated by reference and are
enforceable parts of the permit.
4. No komeowner/lot owner/developer skall fill in or after, any drainage feature (suck as
swales avid pipiy%g) skown on tke approved plans as part of tke stormwater management
system witkout submitting a revision to the permit and receiviAg approval from tke
Division.
DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Project Name: Beachwalk @Kure Beach
Permit Number: SW8 960518
Location: New Hanover County
Applicant: Mr. Robert Weinbach, President
Mailing Address:
Beachwalk Development, Inc.
1009 N. Lake Park Boulevard
Carolina Beach, NC 28428
Application Date:
October 7, 1998 modification (December 4, 1997 original)
Water Body Receiving Stormwater Runoff
Cape Fear River
Classification of Water Body:
"SB"
If Class SA, chloride sampling results:
n/a
Pond Depth, feet:
7.5
Permanent Pool Elevation, FMSL:
18.1
Total Impervious Surfaces, ffz:
1,057,271
70 lots at 4,000 ft2 each
280,000
3

State Stormwater Management Systems
Permit No. SW8 960518
20 duplex buildings @4,000 ft2 each
Roads/Parking, ft2
Kure Dunes Phase II, ft2
Kure Dunes Phase III, ft2:
Community Court, ft2
Offsite Area to Pond, Fourth Avenue/Largo, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft2:
Required Storage Volume, fP:
Provided Storage Volume, fP:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
II. SCHEDULE OF COMPLIANCE
80,000
110,000
182,577 (See SW8 920807 for breakdown)
243,580 (See SW8 950709 for breakdown)
23,900
137,214
28,167
42,400
86,610
101,400
20.1
4" pipe
l . The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's intended
use prior to the construction of any built -upon surface except roads.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired
immediately.
3. 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.
4. 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.
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.
6. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater
system functions 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.

State Stormwater Management Systems
Permit No. SW8 960518
f. Debris removal and unclogging of outlet structure, orifice device, catch basins and piping.
g. Access to the outlet structure must be available at all times.
7. 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.
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.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
9. The Director may determine that other revisions to the project should require a modification to the permit.
10. The permittee is responsible for verifying that the proposed built -upon area 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.
11. Prior to the sale of any lot, deed restrictions must be recorded which limit the built -upon area per lot to the amount
as shown on the Project Data Sheet, per Section I, Part 2. The recorded statements must follow the form:
a. "The maximum built -upon area per lot is 4,000 square feet, inclusive of that portion of the right-of-way
between the lot line and the edge of pavement, structures, pavement, walkways of brick, stone, or slate, but
not including open wood decking."
b. "The covenants pertaining to stormwater regulations may not be changed or deleted without concurrence
of the State."
C. "Alteration of the drainage as shown on the approved plan may not take place without the concurrence of
the State."
d. "Lots within CAMA's Area of Environmental Concern may be subject to a reduction in their allowable
built -upon area due to CAMA regulations."
e. "All runoff from built -upon areas of the lots must be directed into the pond. This may be accomplished
through gutters, lot grading or perimeter property line swales which drain into the street or pond. Lots that
naturally drain to the proposed pond do not need to provide these additional measures."
12. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date of recording
the plat. The recorded copy must be signed by the Permittee, dated, stamped with the deed book number and page,
and bear the stamp/signature of the Register of Deeds.
11 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.

State Stormwater Management Systems
Permit No. SW8 960518
III. GENERAL CONDITIONS
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 "Name/Ownership Change Form" must be submitted to the Division of Water
Quality accompanied by appropriate documentation from the parties involved, such as a copy of the deed of trust.
Other supporting materials, such as a signed Operation and Maintenance plan in the case of engineered systems,
will also be required. 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. 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.
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.
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. Permittee grants permission to staff of the DWQ to access the property for the purposes of inspecting the stormwater
facilities during normal business hours.
Permit issued this the 8th day of October, 1998.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 960518
0

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
September 17, 1998
Mr. Robert Weinbach, President
Beachwalk Development, Inc.
1009 N. Lake Park Boulevard
Carolina Beach, NC 28428
�+ NCDEW,-R,
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Additional Impervious Areas
Stormwater Project No. SW8 960518
Beachwalk @Kure Beach
New Hanover County
Dear Mr. Weinbach:
The Wilmington Regional Office received a Stormwater Management Permit Application for Kure
Dunes Phase 11 from the Town of Kure Beach on September 1, 1998. The application proposes to increase
the built -upon area that was previously allotted to Kure Dunes Phase H in your permit, by 37,000 square feet.
The pond is adequately sized to accept this additional runoff, due to the excess design that your engineer
proposed. The April 6, 1998, permit did not include this contingency, even though it is in the design
calculations.
I would like to reissue the permit showing the increased built -upon area allotted to Kure Dunes, and
the remaining contingency amount of approximately 85,000 square feet. If this is satisfactory, please respond
in writing indicating your acceptance of the increased built -upon area in Kure Dunes, and having the permit
reissued to reflect the changes.
If you or your engineer have any questions concerning, this matter please feel free to call me at (910)
395-3900.
Sincerely,
l�
Ms. Linda Lewis
Environmental Engineer "
RSS/arl: S:\WQS\STORMWAT\ADDINFO\920807.SEP
cc: Linda Lewis
David Hollis, P.E.
David Criser, P.E.
Betty Medlin, Mayor
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

runs V, L
as G�so� 172 �x'r

fyC*'d3ACEIYED OCT 0 7 tA99
Beachwalk Homeowners Association, Inc.
1009 N Lake Park Blvd. # 4A
Carolina Beach, NC 28428
Telephone 9
Fax [phone]
October 2, 1998
To: Ms. Linda Lewis - Environmental Engineer r1 �i
NCDENR V�
From: Mr. Bob Weinbach - President
Beachwalk Homeowners Association, Inc.
Re: Storm Water Pond
Dear Ms. Lewis:
In response to your letter dated September 17, 1998, in regards to additional
impervious areas, Storm Water Project SW 896058 Beachwalk at Kure Beach in New
Hanover County.
After review of your letter please take this notification from Beachwalk
Homeowners Association, Inc. as a satisfactory response in acceptance of Storm Water
flow from the Kure Dunes Project.
Thank you for your time in this matter, if you have any further questions please
call me at 458-3979.
Sincerely,
Robert Weinbach - President
Beachwalk Homeowners Association, Inc.
cc: David Hollis, P.E.
David Criser, P.E.
Betty Medlin, Mayor
Bill Hanna,

DETENTION POND ANALYSIS
PROJECT #: SW8 960518
PROJECT NAME: Beachwalk @Kure Beach
Drainage Basin: Cape Fear River
FILE NAME: S:1WQSIPOND1960518.WK1
REVIEWER: arl
DATE: 17-Sep-98
Class: SB Chlorides: n/a
Site Area 1045440 square feet
Drainage Area 1755468 square feet Includes Kure Dunes (920807)
Area in Acres 40.3 acres
IMPERVIOUS AREA
4th Ave/Largo
137214 square feet
Kure Dunes
426157 square feet
Community Ct
23900 square feet
Roads
110000 square feet
20 Duplexes
80000 square feet (4,000 sf each)
70 lots@4000
280000 square feet
TOTAL
1 l square feet
% IMPERVIOUS 60.23% Pond Depth: 7.5 TSS: 85
SURFACE AREA CALCULATION
SA/DA 1.605%
Req. SA 8-4.672921 square feet
Prov. SA L14g4Wsquare feet [From plan Contours]
VOLUME CALCULATION
Bottom 10.6 MSL
Perm. Pool fWMSL
Design Pool 20.1 MSL
Design SA 59000 square feet
[From plan Contours]
Req. Volume 86609.775 cubic feet
Rv=
0.5920457
Prov. Volume 10141Q) cubic feet
..
SA @
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.9166667
ft
Flow Q2, cfs 0.58680556 Area, in
18.32976
Dia 2, inches 4.83096
Flow Q5, cfs 0.23472222 Area, in
7.331904
Dia 5, inches 3.055368
Engineer usesF� inches
Area =
12.566371 in2
_4
Q, cfs = 0.4022974
Drawdown
_1 days
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.

DETENTION POND ANALYSIS
PROJECT #: SW8 960518
PROJECT NAME: Beachwalk @Kure Beach
Draina a Basin: Cape Fear River
FILE NAME: S:1WQS\POND\960518.WK1
REVIEWER: arl
DATE
Class: SB
17-Sep-98
Chlorides: n/a
Site Area 1045440 square feet
Drainage Area 1755468 square feet Includes Kure Dunes (920807)
Area in Acres 40.3 acres
IMPERVIOUS AREA
4th Ave/Largo
137214 square feet
Kure Dunes
426157 square feet
Community Ct
23900 square feet
Roads
110000 square feet
20 Duplexes
80000 square feet (4,000 sf each)
70 lots@4000
280000 square feet
Contingency
85000 square feet
TOTAL
114221
% IMPERVIOUS 65.07%
Pond Depth: 7.5 TSS: 90
SURFACE AREA CALCULATION
SA/DA 2.103%
Req. SA 36913 5 ]]square feet
Prov. SA 44C3a lsquare feet [From plan Contours]
VOLUME CALCULATION
Bottom 10.6 MSL
Perm. Pool 1�0,.!I�]MSL
Design Pool _ 20.1 MSL
Design SA 59000 square feet [From plan Contours]
Req. Volume 92984.775 cubic feet Rv= 0.6356238
Prov. Volume cubic feet SA @
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.9166667 ft
Flow Q2, cfs 0.58680556 Area, in 18.32976 Dia 2, inches 4.83096
Flow Q5, cfs 0.23472222 Area, in 7.331904 Dia 5, inches 3.055368
Engineer usesE �mm ........ 4*Inches Area = 12.566371 in
Q, cfs = 0.4022974 Drawdown 2. 51727� days
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.

CRISER & TROUTMAN CONSULTING ENGINEERS
August 24,1998
Ms. Linda Lewis
Environmental Engineer
NCDENR-Division of Water Quality
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Additional Information for
Stormwater Project No. SW8 920807 Modification
Kure Dunes Phase II Pond Removal
New Hanover County
Dear Ms. Lewis:
In response to your request for additional information dated August 7,1998, we
are sending to you the following:
1. The application form with Section III completed. The information shown
includes square footage for additional impervious area that would result from
the development of the existing pond area as four residential lots at some future
date. The Town of Kure Beach does not plan to develop these lots at this time.
However, we are requesting that this permit modification include approval for
this eventuality to prevent the Town of Kure Beach from having to revisit the
Kure Dunes Phase R Stormwater Permit again, in the future.
2. The following calculations are in support of the Section III information currently
shown on the application form:
Allowable Impervious Area (30%) 189,740 s.f. ( 4.36 ac.)
Total Project Area 632,465 s.f. (14.52 ac.)
Proposed Impervious Area 403,254 s.f. ( 9.26 ac.)
% Impervious Area 64%
805 N. THIRD STREET I P. O. BOX 3727 1 WILMINGTON, NC 28406 1 [phone] FAX [phone]

Ms. Linda Lewis
Environmental Engineer
NCDENR Division of Water Quality
August 25,1998
Page 2
Buildings
312,444 s.f.
Streets
90,810 s.f.
Parking/SW
n/a
Other
n/a
Totals
403,254 s.f.
The acreage of the existing pond area taken from the legal description is 0.75111
acres or 32,718 square feet. The additional impervious area that would result
from the development of the existing pond area as four residential lots is as
follows:
32,718 s.f. x .70 impervious = 22,903 s.f. impervious surface
When this quantity is added into the original permit quantities the Permit
Application Section III information, as shown on the enclosed permit form, is as
follows:
.. .. , .
_� - � ; ' � �K�C•1��!!!��ll•Jli�i.� ���.is�.tiz�•.t�4+-��-�.;�� !.—QT
Allowable Impervious Area (30%) 189,740 s.f. ( 4.36 ac.)
Total Project Area 632,465 s.f. (14.52 ac.)
Proposed Impervious Area 426,157 s.f. ( 9.78 ac.)
% Impervious Area 67%
Buildings
335,347 s.f.
Streets
90,810 s.f.
Parking/SW
n/a
Other
n/a
Totals
426,157 s.f.

Ms. Linda Lewis
Environmental Engineer
NCDENR Division of Water Quality
August 25,1998
Page 3
The design capacity for the existing Kure Dunes Phase II pond is 33, 050 c.f. If
the existing pond is removed and eventually developed as four additional lots,
the following additional quantity of run-off could be expected:
Impervious Area of Lots: 32,718 s.f. x .7 x .85=19,467 s.f.
Remaining Undeveloped Area of Lots: 32,718 s.f. x .3 x .20 = 1,%3 s.f.
21,430 s.f.
Quantity of Additional Run-off: 21,430 s.f. =12(one inch of rainfall) =1,786 c.f.
Total Run-off to be sent to Beachwalk Development Pond System:
33,050 c.f. Existing Kure Dune Phase II Pond Capacity
1,786 c.f. Existing Kure Dune Phase II Pond Developed Residential
34,836 c.f. Total Quantity
According to the calculations for the Beachwalk Development Stormwater
System, their ponds were designed to receive 38,260 c.f. of stormwater from the
Kure Dunes Phase II Development.
38,260 c.f. Beachwalk Development Design Capacity for KD Phase II
34,836 c.f. Actual Stormwater Quantity to be sent to
Beachwalk Development from KD Phase II
3,424 c.f. Surplus Capacity in Beachwalk Ponds for
Kure Dunes Phase II Stormwater Storage
All original design features of the Kure Dunes Phase II stormwater system
remain as originally designed, with the lone exception of the removal of the existing
pond and the placement of sufficient piping in the pond area to send the Kure Dunes
Phase II stormwater to the Beachwalk pond system. All original maintenance
agreements between the Town of Kure Beach and Kure Dunes Phase II Development
remain as originally stated. The Town of Kure Beach will continue to be responsible
for maintenance of the entire original stormwater system for Kure Dunes Phase II,
including any necessary maintenance on the piping associated with the existing pond
removal.

Ms. Linda Lewis
Environmental Engineer
NCDENR Division of Water Quality
August 25,1998
Page 4
We hope that this additional information is adequate to facilitate Your timely
approval of this permit application modification. Please call, if we may be of further
assistance.
Sincerely,
David E. Criser, P.E.
Civil Engineer-Criser & Troutman
GGB/4628
Hon. Betty L. Medlin, Mayor
Mr. Bobby A. Theodore, Commissioner
cc:
!'Z
Hon 4 L. Medlin
Mayor -Town of Kure Beach