SW8010801_CURRENT PERMIT_20020725

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�(D l DS�U�
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

co
4
OF W A TF9
QG
r
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
July 25, 2002
Mr. Todd Crawford, Executive Vice President
Southland Studios, Inc.
201 N. Front Street, M 108
Wilmington, NC 28401
Subject:
- -Dear Mr. Crawford:
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
Permit No. SW8 010801 Modification
Southland Studios
High Density Stormwater Project
Brunswick County
The Wilmington Regional Office received a complete Stormwater Management Permit Application for
Southland Studios on July 5, 2002. Staff review of the plans and specifications has determined that the
project, as proposed, will comply with the Stormwater Rebulations set forth in Title 15A NCAC
2H.1000. We are forwarding Permit No. SW8 010801 Modification dated July 25, 2002, for the
construction of Southland Studios.
Prior to filling the wetlands shown on the approved plans, you must notify the United States Army
Corps of Engineers and the North Carolina Division of Water Qaulity. This activity will require a
404 Nationwide Permit and a 401 Water Quality Certification.
This permit shall be effective from the date of issuance until July 25, 2012, 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 Noelle
Lutheran or me at [phone].
Sincerely,
4` Rick Shiver
Water Quality Regional Supervisor
RSS/nml: S:IWQSISTORMWATIPERMIT1010801.JUL
cc: Shane Lippard, P.E.
Joanne Steenhuis, DWQ
Brunswick County Building Inspections
Division of Coastal Management
Noelle Lutheran
Wilmington Regional Office
Central Files
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone]
4V?C�
j*
NCDENR
Customer Service
800-623-7748

State Stormwater Management Systems
Permit No. SW8 010801 Modification
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
Southland Studios, Inc.
Southland Studios
Brunswick County
FOR THE
construction, operation and maintenance of two 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 25, 2012, 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 on page 3 of this permit, the Project Data Sheet. The stormwater control has
been designed to handle the runoff from 758,077 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
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.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.
2

'State'Stormwater Management Systems
Permit No. SW8 01080I Modification
DIVISION OF WATER
QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Southland Studios
Permit Number:
SW8 010801 Modification
Location:
Brunswick County
Applicant:
Mr. Todd Crawford, Vice President
Mailing Address:
Southland Studios, Inc.
201 N. Front Street. M 108
Wilmington, NC 28401
Application Date:
July 5, 2002
Receiving Stream/River Basin/Index 4:
Cape Fear I Town Creek 118-81
Classification of Water Body:
"C Sw"
Pond l Pond 2
Pond Depth, feet:
4 4
Permanent Pool Elevation, FMSL:
29.8 30.0
Drainage Area, acres:
3.71 29.55
Total Impervious Surfaces, ft2:
48,158 709,919
Offsite Area entering Pond, i12:
none per Engineer
Required Surface Area, ft2:
4,362 55,343
Provided Surface Area, ft':
7,307 66,565
Required Storage Volume, ft3:
4,285 58,607
Provided Storage Volume, ft':
4,603 68,259
Temporary Storage Elevation, FMSL:
30.4 310
Controlling Orifice:
4" pipe 1" pipe
I

State Stormwater Management Systems .
Permit No. SW8 010801 Modification
IL SCHEDULE OF COMPLIANCE
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.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
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 slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. - -Maintenance of all slopes in accordance. with -approved plans and specifications.
f, Debris removal and unclogging of outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. Decorative spray fountains will not be allowed in the stormwater treatment system.
6. The facilities shall be constructed as shown on the approved plans. 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.
7. 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. A modification may be required for those deviations.
8. 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.
9. 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 any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
area.
e. Further subdivision, acquisition, or sale 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.
I

State Stormwater Management Systems
Permit No. SW8 010801 Modification
10. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
11. 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.
12. Prior to the sale or lease of any portion of the property, the permittee shall notify DWQ
and provide the name, mailing address and phone number of the purchaser or leasee. An
access/maintenance easement to the stormwater facilities shall be granted in favor of the
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
14.. - 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.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an application fee,
documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved. Responsibility for compliance with all permit conditions remains with
the Permittee until such time as the Division approves the formal permit request,
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 permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater
management facility.
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. Unless specified elsewhere, permanent seeding requirements for the stormwater control
must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
5

91
.16
State Stormwater Management Systems
Permit No. SW8 010801 Modification
Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
The permittee shall notiA, the Division any name, ownership or mailing address changes
within 30 days.
Permit issued this the 25th day of July, 2002.
NOR H CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
)&4,a/34d*-
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
I

w State Stormwater Management Systems
Permit No. SW8 010801 Modification
Southland Studios
Stormwater Permit No. SW8 010801 Modification
Brunswick County,
Designer's Certification
as a duly registered
in the State of North Carolina, having been authorized to
observe (periodically'/weekly/full 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 is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
7

State Stormwater Management Systems
Permit No. SW8 010801 Modification
Certification Requirements:
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. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outletibypass structure.
7. AlI slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
I2. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENI-R-DWQ Regional Office
Brunswick County Building Inspections
N

State Stormwater Management Systems
Permit No. SW8 010801 Modification
Certification Requirements:
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. The outlet/bypass structure elevations are per the approved plan.
S. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a
foreb ay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENTR-DWQ Regional Office
Brunswick County Building, Inspections
E:3

J., OFFICE`L1SE ONLY
Dati Recei ed
Fee Paid
Permit Number
State of Nortli 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
I. GENERAL INFORMATION
1, Applicants name (speci�fy' the name of the corporation, individual, etc. who owns the project):
Southland Studios . 'Lnr_,
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Todd Crawford, Executive Vice President
3. Mailing address for person listed in item 2 above:
201 N. Front St., M108
City: Wilmington State: NC
Telephone Number: (910) 772 - 9949
Zip: 28401
4. Project Name (subdivision, facility or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Southland Studios
5. Location of Project (street address):
Kay Todd Rd. (SR 1553)
City:
County: Brunswick Coun
6. Directions to project (from nearest major intersection):
Go South on Hwy. 17 heading away from Wilmington. 2 miles after Magnolia Greens, cross over Sunny
Point Railroad. 'Then take next left. After about a third of mile the site will be on your right.
7. Latitude: 34 degrees, 11 min. 30 sec. Longitude: 78 degrees, 3 min., 30 sec. of project
8. Contact person who can answer questions about the project:
Name: Shane Lippard Telephone Number: (910) 251 - 8544
II. PERMIT INFORMATION
1. Specify whether project is (check one) ❑ New ❑ Renewal ® Modification
FormSWU-101 Page I of

5
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number SW8 010801 and its issue date (if known) 9-10-2001
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 INFORNN'IATION
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.
Stormwater to the south of the existing creek onsite will drain into swales which empty into detention pond #1.
Stormwater to the north of the existing creek onsite will be drained by catch basins which drain into detention
pond #2. This allows debris in the water to settle before draining into existing ditch.
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
Total Property Area: 141.3 acres
3. Total Project Area: 33.3 acres 4. Project Built Upon Area: 52.33
5. How many drainage areas does the project have? 2
6. Complete the following information for each drainage area. If there are more than two drainage area in the
project, attach an additional sheet with the information for each are provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
Town Creek
Town Creek
Receiving Stream Class
C Swamp
C Swam
Drainage Area
3.71 acres
29.55 acres
Existing Impervious * Area
0 sf
0 sf
Proposed lm ervious * Area
48,158 sf
709,919 sf
% Impervious * Area (total)
29,80 %
55.16 %,
Impervious * Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildin 7s
0 sf
253,357 sf
On -site Streets
5,430 sf
120,389 sf
On -site Parking
40,424 sf
326,615 sf
On -site Sidewalks
0 sf
9,558 sf
Other on -site
2,304 sf
0 sf
Off -site
0 sf
0 sf
Total: 48,158 sf
Total: 709,919 sf
*fmpej-vioas area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel area, etc.
Form SWU-101 Version 3.99 Page 2 of 4

7. How was the off -site impervious area listed above derived? NIA
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 Writer 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 coverer) by structures or impervious materials.
impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossing.
4. Built -upon area in access of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runofffrom outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be per former) 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
"fhe 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 SWU-103
Low Density 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
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
form SWU-lol Version 3.99 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be acepted and reviewed by the Division of Water Quality (DWQ). A
complete package includes all of the items listed below. The complete application package should be submitted
to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space
Provided next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Forms(s) for each BMP S L.
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management - (�
• Two copies of plans and specifications, including: (as�
-Development/Project name
-Engineer and firm
-Legend
-North Arrow
-Scale
-Revision number & date
-Mean high water line
-Dimensioned property/project boundary
-Location map with named streets or NCSR numbers
-Original contours, proposed contours, spot elevation, 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)
VI1. AGENT AUTHORIZTION
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): Rig�.ht Angle Lngineerin�
Mailing Address: 201 N. Front St., Suite 809
City: Wilmington State: NC
Phone: [phone] Fax: [phone]
VIII. APPLICANT'S CERTIFICATION
Zip: 28401
I, (print or type name of person lister! in General Information, iteili 2) T Odd G fp %Ar'afa
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 w/'I- fe rec riled, and at e proposed project complies with the requirements of 15A
Signature:
Form SWU-1 Ol version 3.99 Page 4 of 4
Date: / g Ke
—T

Permit No. 5 � _0 h3 0 Q I 11 Of)
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Southland Studios
Contact Person: Todd Crawford Phone Number: ( 910) 772-9949
For projects with multiple basins, specify which basin this worksheet applies to: Detention Pond #1
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
areas
Permanent Pool Surface Area
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DAt
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3.99
25.8 ft. (floor of the basin)
29.8 ft. (elevation of the orifice)
30.4 ft (elevation of the discharge structure overflow)
7307
sq. ft. (water surface area at the orifice elevation)
3.71 ac. (on -site and off -site drainage to the basin)
ac. (on -site and off -site drainage to the basin)
18226 cu. ft. (combined volume of main basin and forebay)
4603 cu. ft. (volume detained above the permanent pool)
3908 cu. ft. (approximately 20% of total volume)
2.70 (surface area to drainage area ratio from DWQ table)
1 in. (2 to 5 day temporary pool draw -down required)
1
in.
90 % (minimum 85% required)
Page 1 of 4

Footnotes:
1 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.
2 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 NCDENR BMP manual provides design tables for both 85% 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
L a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
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)
V S L-- f. The basin length to width ratio is greater than 3:1.
(r� S g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
1-- j. A trash rack or similar device is provided for both the overflow and orifice.
_ J3(Pr k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
LJ)!- I. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
u, m. A mechanism is specified which will drain the basin for maintenance or an emergency.
*PUMP
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does Vdoes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does (�does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

. L
•
i�._
i
V�
1

Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 3.0
When the permanent pool depth reads 3.0
feet in the main pond, the sediment shall be removed.
feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fi11 in the blanks)
0 Permanent Pool Elevation 2 9 . 8
Sediment Re oval El. 26 .8 75 Q 26.8
-------------- - Sediment Removal Elevation 75%
Bottom EIe ation 2 5 . $ %nA
----------
--------------------------------- -------
Bottom Elevation25 . 8 25%
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Todd Crawford
Title: Executive Vice President
Addr
Phon
Sign;
Date
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
1, , a Notary Public for the State of LN-LIIL"4xa
County of , do hereby certify that
personally appeared before me this 1�I' day of , .4-00/ , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires/O J-IJD 6
Form SWU-102 Rev 3.99 Page 4 of 4

Permit No. Srilra O 901 HojD
(to be provided by DWQJ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Southland Studios
Contact Person: Todd Cranford Phone Number: tf 1.0 ) 772-9949
For projects with multiple basins, specify which basin this worksheet applies to: Detention Pond #2
elevarions Lr'L- �� a � , d
Basin Bottom Elevation ft. (floor of the basin)
Permanent Pool Elevatio�L "��� 3 �' (elevarion of the orrice)
Temporary Pool Elevation 31 .0 ft. (elevanon of the discharge srrucncre overj7ow)
areas
G�5�5
Permanent Pool Surface Area sq. ft. (warerswface area at the orifice elevation)
z1Jnn
Drainage Area - ac (on -site and off -sire drainage to the basin)
Impervious Area
volumes
WS L
Permanent Pool Volume
Temporary Pool VolumeMt'
Forebay Volume iai L_
Other parameters
SAIDAi
m
Diaeter of Orifice
Design Rainfall
Design TSS Removal 2
16.3
ac
(on -sire and off --site drainage to the basin)
a 3-
cu. ft. (combined volume of main basin and forebay)
i,, S, A. S7
cu. ft (volume detained above the permanent pool)
cu. ft_ (approximately 20% of total volume)
(�0,`7S f�
4-3%
(surface area to drainage area ratio from DWQ table)
4 in_ (2 to 5 day temporary pool draw -down required)
1 in
90 °% (minimum 857a required)
Form SWU-102 Rev 3,99 Page 1 of 4

Footnotes:
When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permar ent 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 NCDF- ii R BMP manual provides design tables for both 85po 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
L-;-S(— a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
(— c. The temporary pool controls runoff from the desisn storm event.
lc&L- d. The temporary pool draws down in 2 to 5 days.
tj e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3: l .
�S L g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
WSL i. Vegetative cover above the permanent pool elevation is specified.
W, L j. A trash rack or similar device is provided for both the overflow and orifice.
NIP, k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
ws �" 1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
*PUMP
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does ddoes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does 84oes not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
l . After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
Proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depr_h is
reduced to 75% of the original design depth (see diagram below). Removed sediment'shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 3 .7 5 feet in the train pond, the sediment shall be re-noved.
When the permanent pool depth reads 3.75 feet in the forebav, the sediment shall be removed.
BASIN DIAGRATM
(fill in the blanks)
v
(v • Permanent Pool Elevation'.2'9—.e-�' Q 00
Sediment Re oval El 75 0
--- 75% Sediment Removal Elevation � 75%
Bottom Ele ation~ Ala ~-------------------------�------- ]------
Bottom Elevation''- ) � • Dn y 25%
FOREBAY 1` -k• POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment. through
the emergency drain shall be minimized to the maximum extent practical. V
Form SWU-102 Rev 3.99 Page 3 of 4

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 DWQ of any problems with the system or prior to any
changes'to the system or responsible party.
Print name: Todd Crawford
Executive Vice President
Address: 2 01 N Fro t
Phone: (Silo �,- 9 9
Signature:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
a Notary Public for the State of 4M
County of , do hereby certify that "/
personally appeared before me this day of , =1, and acknowledge the dire
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
My commission expires /
Form SWU-102 Rev 3.99 Page 4 of 4