SW8041114_CURRENT PERMIT_20041124

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�v'��I`f
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
�L�o2'�
WYYMMDD

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
November 24, 2004
Mr. Richard Rogge, Member/Manager
Coastal Dream Homes, LLC
PO Box 2020
Carolina Beach, NC 28428
Subject: Stormwater Permit No. SW8 041114
Island Forest Subdivision
High Density Subdivision Project
New Hanover County
Dear Mr. Rogge:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for
Island Forest Subdivision on November 23, 2004. 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 041114 dated November 24, 2004, for the
construction of the project.
This permit shall be effective from the date of issuance until November 24, 2014, 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,
ram.
Rick Shiver
Regional Supervisor
Surface Water Protection Section
RSSlarl: S:1WQSISTORMWATIPERMIT1041114.nov04
cc: Jeff Malpass, P.E.
Town of Carolina Beach Building Inspections
Division of Coastal Management
Linda Lewis
Wilmington Regional_O.ffice�
Central Files
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Service 1-877-623-6748
Wilmington Regional Office Wilmington, NG 28405-3645 FAX [phone] Intemet h2o.enr.state.nc.us One
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper NorthCarolina
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State Stormwater Management Systems
Permit No. SW8 041114
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
Richard Rogge & Coastal Dream Homes, LLC
Island Forest Subdivision
Bennet Lane, Carolina Beach, New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond 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 November 24, 2014 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 on page 3 of this permit. The subdivision is
permitted for 18 lots, each allowed 3,000 square feet of built -upon area.
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 041114
5. The following design elements have been permitted for this wet detention pond
stormwater facility, and must be provided in the system at all times.
a. Drainage Area, acres: 5.68
Onsite, ft2: 247,421
Offsite, ft2: 0-bypassed
b. Total Impervious Surfaces, ft2: 95,690
18 Lots at 3,000 ft2: 54,000
Roads/Parking, ft2: 41,090
Other, ft2: 600
Offsite, ft2: 0
c. Pond Depth, feet: 6.50
d. TSS removal efficiency: 90%
e. Design Storm: 1
f. Permanent Pool Elevation, FMSL: 13.00
g. Permitted Surface Area @PP, ft2
h. Permitted Storage Volume, ft3:
i. Storage Elevation, FMSL:
j. Controlling Orifice:
k. Permanent Pool Volume, ft3:
I. Forebay Volume, ft3:
m. Maximum Fountain Horsepower:
n. Receiving Stream 1 River Basin:
o. Stream Index Number:
p. Classification of Water Body
ll. SCHEDULE OF COMPLIANCE
5,487
19,679
15.7
1.5" O pipe
12,547
2,270
116
Carolina Beach Yacht Basin/ Cape Fear
CPF24 18-87-31.2
"S B"
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 041114
3. if an Architectural Review Board or Committee 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 Board 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 its 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. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
Page 4of9

State Stormwater Management Systems
Permit No. SW8 041114
12. Prior to the sale of any lot, the following deed restrictions must be recorded:
a. The following covenants are intended to ensure ongoing compliance with .
State Stormwater Management Permit Number SW8 041114, 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 is 3,000 square feet. 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 will naturally
drain into the system are not required to provide these measures.
h. Built -upon area in excess of the permitted amount will require a permit
modification.
13. 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 contain all of the statements above, the signature of the Permittee, the
deed book number and page, and the stamp/signature of the Register of Deeds.
14. 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 the fountain's pump is based on the
permanent pool volume. The maximum pump power for a fountain in this
pond is 116 horsepower.
Page 5of9

State Stormwater Management Systems
Permit No. SW$ 041114
15. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must 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.
Ill. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event there is either 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.
This may include, but is 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 all of 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 6of9

State Stormwater Management Systems
Permit No. SW8 041114
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 24th day of November 2004.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A A. A
Alan W. Klimek, PE., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 041114
Page 7 of 9

State Stormwater Management Systems
Permit No. SW8 041114
Island Forest Subdivision
Stormwater Permit No. SW8 041114
New Hanover Count
Designer's Certification
Page 1 of 2
1, , as a duly registered in
the State of North Carolina, having been authorized to observe (period icallylweeklylfull
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 8 of 9

State Stormwater Management Systems
Permit No. SW8 041114
Certification Requirements: Page 2 of 2
.1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
15. The required dimensions of the system are provided, per the approved
plan.
CC.' NCDENR-DWQ Regional Office
Town of Carolina Beach Building Inspections
Page 9of9

;K RDFFICE, L 5E 0 t t;1 u n:
Date Received
Fee Paid
I Permit Number
1--/81-a
v z16W- 0.0
g d¢l//L/-
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
C,cW4a/-,L9reVM 5- L LC
2. PrintOwner/Signing Official's name and title (person legally responsible for facility and compliance):
3. Mailing Address for person listed in item 2 above:
City: � State: Zip: e&-M'
Telephone Number: ( q/a
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
F.Siond Foreo-
5. Location of Project (street address):
_-iik4LL-1N4 OeAcd - — - - County:-iVEW HwOc-Q
6. Directions to project (from nearest major intersection):
LcOTEQ NPOY 7 MILEK SovTd OF QJTGwEeT101J OF U�. L421 4N0. dWY (3Z.. )OW4
CAA40 uk� 4. TAN Vt6f ors m UNNC i AO . RcMi f_ G4rJr 441 IN o _S T:- AFTe L
7. Latitude: X 4' 2' 3 S' -- Longitude: w Tr 9 i :J 81 tI of project
S. Contact person who can answer questions about the project:
Name: Jj'� /lr Pks Telephone Number: (`i 0 343 —17 63
II. PERMIT INFORMATION: /
1. Specify whether project is (check one): L/ New Renewal: Modification
Form SW-U-101 Version 3.99 Pape 1 of 4

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2. If this application is being submitted,as the result of a renewal or modification to an existing permit, list the M
existing permit number _ _ _ and its issue date (if known)
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 L//NPDES Stormivater
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 .
2. Stormwater runoff from this project drains to the C River basin.
3. Total Project Area: S•� acres 4. Project Built Upon Area: �0 %
5, How manv 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.
SasrFi Infoxmatzor ffk
t < : Dxaznag� Area 1�R,=M.
a Drainage Aea 2<
Receiving Stream Maine
1 nci=av� 1 RL„�'^i•• �q L �G+
Receiving Stream Class
s
Drainage Area
5,7
Existing Impervious* Area
Proposed Im ervious*Area
0��o
Impervious* Area (total)
On -site Buildings
54oo D l }L
On -site Streets
Li ! Mo f �L
On -site Parking
/V/
On -site Sidewalks
N
Other on -site
00 _4 dei�i
Off-site14
Total:
Total:,:; 'Q S�
Impervious area is defined as the built upori�area including, but not limited to, buildings, roads, parking areas,
sidewalks, gr•aveI areas, etc. r
Form SWU-101 Version 3.99 Page 2 of 4

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6 .

7. How was the off -site impervious area listed above derived? Mr IrI W
1V. 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 stonnwater 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.
Impv-pious 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 crossing.
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 per formed 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. SUPPLEMEIN I' FORMS
The applicable state stormwater management permit supplement form(s) 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 SW-U-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 SII U-108
Neuse River Basin Supplement
Form SIVU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 - Pare 3 of 4

' V.I. SUBM1Ti"AL REQUIREMENTS
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 -
I. Please indicate that you have provided the following required information by initiating in the space
provided next to each item.
• Original and one copy of the Stormwater Management Permit Application Form Initials
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of S420 (payable to NCDENR) JB�
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including: JbM
- Development/Project name
- Engineer and Finn
-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 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. pp�.�
Designated agent (individual or firm): f0-1 �• �G(�E� D• �.
Mailing Address: 3 119 5 WILT- i{ MOO LL 14Ai4VJA1 -
City: WILMw6ra State: 9C Zip: Teigi
Phone: ( 410 L N3 -J7 6 Fax. ( 9 (o ) 343 - O Z 4 4
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 2)
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. D
Signature: A 0 Date: y�
Form SWU-!01 Version 3.99 Page 4 of 4

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Permit � 5/,JXO 4-
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STO tMWA, TIER MAIN AGEivIENT PERivLIT APPLICATION FOR:�i
WET DETENTION BASIN SUPPLEMENT
Triis forlir Tray be rhozo�:opied for use as an crisinL72
Dom' 5tormwater Management Plan Res�ie%
A cornplete storm"'°ater managernert plan submittal includes an application~ form. a vet detention basin
supplement for each basin. design calculations, and plans and specifications shoxvin¢ all basin and a� lent
sinucture details.
I. PROTECT Il TOR-NLaTION
Project \ame: _ i.SL€; Q � A � -
Coritaci Person: J E i F jvmiL-Phss - Phone Number:
For projects %vith multiple basins. specify which basin this work -sheet applies to:
Ct;e aions
Bari x Bottom Elevation {� � ft. (floor of the basin)
Per-irnanent fool Elevationl l ft. (elevation of the orifice)
ie.��;porar Pool Elevation 15ft, (elevarion of the discharge s:rt{Crone or-e o1 -1
CI-p.C1S
Permanent Pool Surface Area_. _5 ,` r1l sq. ft
Dra nage .4',rea 5.7 _ _ _ ac.
lint".-rs°ious Area z act
(v.--ater surface area at the orifice elevation)
(on -site and ofj--site draina`;e to the basin)
(on -site and o"I ite draina;e ro tfze basin)
, 'ilrr;e5
Pere:anent Pool Volume cut ft. (combined volume of mein basin aria f-webaY;,
Te�.4-,orar Pa7I Volume ! 91 f 79, Z9 cu. ft, (volume detained above the permaiteiit poor
€=o:eba; Volume -2 1- cu. ft. (approximately 20% of total voiume)
-Oilier parameters
S,,VDAD
D arr,erer oce
Design Ka1 infail
l��C:_art l S5 R'Lil o ai ,
Pa;� S%N" U. -102 Rev 3.99
(su1face area to drattzage area ratio front Di10 table)
in. U to 5 day temporary poor' dray.'-do'f:;j? req �irc�d;f
��f
�- - in.
(% FO (inii]i.)?dllmi S- 17G required)
Pac� i of 4

I %, -Footnotes:
l 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.
In 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 NCDEI R BYIP manual provides design tables for both 8517c TSS removal and 90% TSS removal.
II. 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 Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
V a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
gIV�, __ b. The forebay volume is approximately equal to 2070 of the basin volume.
j� c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. if required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
�_Bfk f. The basin length to width ratio is greater than 3:1.
or. The basin side slopes above the permanent pool are no steeper than 3:1.
{i�Nl h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
d �� i. Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
J a rt"=Aiak. A recorded drainage easement is provided for each basin including access to nearest right
of -way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
j�}
basin is specified prior to use as a wet detention basin.
AM m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND NIALN TENANCE 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 oes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does 0 does not incorporate pretreatment other than a forebay.
1=orm SW -102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. 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, snow 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, ri.prap, 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 4.1IS feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.6ZS feet in the forebay, the sediment shall be removed.
Sediment Reloval El. 10.317 1.75
----------- t- �
Bottom Elegyration 9. S -- VC
FOREBAY
BASIN DIAGRAM
(fill in the blanks)
Permanent fool Elevation.. 110
Sediment Removal Elevation g'IZS 75% ............................................
Bottom L-levation L .S -25 is l
MAIN POND
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 flushina of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Paae 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. I agree to notify D`'VQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name:
Yr�ik &05r to
Title:v
Address:D
Note: The legally responsible party should not be a homeowners association unless more than 50% of the Iots have been sold and
a resident of the subdivision has been named the president.
I.._Sq P—e-A q. OC-e , a Notary Public for the State of Kay-YA_C. nPut,nA ,
County of (Vp-ul HAZOlmr'_, do hereby certify that 0
personally appeared before me this day of LIMA _, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
�,�: ao=air••:
r
¢� o
C.)
"�VER COv %������`
SEAL
My commission expires � a �0
Form SV U-102 Rev 3.99 Page 4 of 4

1t t
State Stormwater Management Systems
Permit No. SW8 041114
Island Forest Subdivision
Stormwater Permit No. SW8 041
New Hanover County
Designer's Certification
the State of North Carolina, havir
time) the construction of the proj(
(Project)
Page 1 of 2
14
is a duly registered in
been authorized to observe (pe ' rc lylweekiylfull
for T K'10; i _ (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number^
Date / 2- ` ? k— 1J
1
SEAL
'd1 cif

' State Stormwater Management Systems
i Permit No. SW8 041114
Certification Requirements:
�1
IN
2of2
The drainage area to the system contains approximately 'the permitted
acreage.
✓� The drainage area to the system contains no more than t e permitted
amount of built-uponarea.
All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are to fated such that the runoff is directed into the system.
a
�. The outlet/bypass structure elevations are per the approved plan.
c---6. The outlet structure is located per the approved plans.
�17. Trash rack is provided on the outlet/bypass structure.
i
6-'8. All slopes are grassed with permanent vegetation.
�—�_9. Vegetated slopes are !no steeper than 3:1.
0. The inlets are locatedper the approved plans and do not cause short-
circuiting of the system.
�l
11. The permitted amounts of surface area and/or volume have been
provided.
I
I
12. Required drawdown devices are correctly sized per the approved plans.
�3. Al required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
forebay, and the vegetated filter. `
_ ! l
/15. The required dimensions of the system are provided, per the approved
7 plan.
CC"
NCDENR-DWQ Regional Office
Town of Carolina Beach Building Inspections
a