SW8981008_HISTORICAL FILE_19990412

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 61r61008
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE I Kyl 6K 10.
YYYYMMDD

". Sta`re of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor N C®E
Wayne McDevitt, Secretary
Division of Water Quality NORTH CAROLWA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURczs
April 12, 1999
Mr. W. Christopher Stephens, President
Landmark Developers, Inc.
PO Box 4127
Wilmington.NC 28406
Subject: Perin it No. SW8 981008
Magnolia Greens Sections 9 & 10
High Density Subdivision Stormwater Project
Brunswick County
Dear Mr. Stephens:
The Wilmington Regional Office received the Stormwater Management Permit Application for Magnolia Greens Sections 9
& 10 on October 9, 1998, with final information on March 16, 1999. Staff review of the plans and specifications ha_s
determined that the project, as proposed,will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.i 000.
We are forwarding Permit No. SW8 981008, dated April 12. 1999, for the construction of the project, Magnolia Greens
Sections 9 & 10.
This permit shall be effective from the date of issuance until April 12. 2009, and shall be subject to the conditions an:
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 stormvvater management system will result in
future compliance problems.
Ifany parts:requirements,or limitations contained in this permit are unacceptable,you have the right to request an adjudicator.
hearing upon written request within thirty(30) days following receipt of this permit. This request must be in the form of c
written petition,confomnng to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Adminisuali\e
Hearings, P.O. Drawer 27447,Raleigh,NC 2761 1-7447. 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 (910i
395-3900.
Sincerely,
Rick Shiver
Water Qual in, Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\981008.APR
cc: Greg- Hetzler, P.E.
Delaney Aycock, Brunswick County Inspections
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Est.,Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportuniq Affirmative Action Employer 50% recycled/10% post-consumer paper

State Stormwater Management Systems
Permit No. SW8 981008
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
Landmark Developers, Inc.
Magnolia Greens Sections 9 & 10
Brunswick Counry
FOR THE
construction, operation and maintenance of 2 detention ponds in compliance with the provisions of 1 SA 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 April 12, 2009 and shall be subject to the following
specified conditions and limitations:
I. DESIGN STANDARDS
P_
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. These sections within the Magnolia Greens subdivision are
permitted for 99 lots, each allowed 4,000 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.
2

State Storm water.Management Systems
Permit No. SW8 981008
DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Project Name: Magnolia Greens Sections 9 & 10
Permit Number: SW8 981008
Location: Brunswick County
Applicant: Mr. W. Christopher Stephens, President
Mailing Address: Landmark Developers, Inc.
PO Box 4127
Wilmington, NC 28406
Application Date: October 9, 1998
Water Body Receiving Stormwater Runoff: Jackey's Creek (CFR18-77-3) ,
Classification of Water Body: "C Sw"
POND 9-1 POND 10
Pond Depth, feet: 7 7
Permanent Pool Elevation, FMSL: 23 19
Total Impervious Surfaces, 112: 369,551 359,146
(99 lots at 4,000 ft2: 210,000 236,000
Roacis/Parkina. ft2 62,057 121.146
Other, ft2 97,494 (Grandiflora) 1000 (Miscellaneous)
Offsite Area entering Pond, ft2: None; per Engineer
Required Surface Area, ft2: 13,430 13.279
Provided Surface Area, ft2: 13.582 '22 558
Required Storage Volume, ft': 32.599 32.016
Provided Storage Volume, ft3: 31,159 31,984
Temporary Storage Elevation, FMSL: 25.1 )0 3
Controlling Orifice: 2 each @2"$ 2 each @2"$pipe
3

State Stormwater Management Systems
Permit Z. SW8 681008
II. SCHEDULE OF COMPLIANCE
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (such as swales) shown
on the approved plans as part of the stormwater management system without submitting a revision to the
permit and receiving approval from the Division.
2. The permittee is responsible for verifying that the proposed built-upon area 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.
3. 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.
4. The Director may determine that other revisions to the project should require a modification to the permit.
5. 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 perrittee 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.
6. 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 except roads.
7. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired
immediately.
8. The permittee grants permission to DENR Staff to enter the property for the purposes of inspecting the
project for compliance with the conditions of this permit.
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. Decorative spray fountains are not allowed in the pond.
11. 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.
4

State Stormwater Management Systems
Permit No. SU'S 981008
12. 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.
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
13. Records of maintenance activities must be kept and made available upon request to authorized personnel
of D,WQ. The records will indicate the date, activity, name of person performing the work and what actions
were taken.
14. 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."
15. 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.
16. 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.
17. Prior to transfer of ownership, the pond must be inspected by DWQ personnel, and determined to be in
compliance with all permit conditions. Records of maintenance activities will be required.
18. 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.
5

State Stonnwater Management Systems
Permit No. SN18 981008
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 "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 12th day of April, 1999.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 981008
6

State Storm water•Nlanas ern ent Systems
Permit No. SN18 981008
Magnolia Greens Sections 9 & 10
Stormwater Permit No. SW8 981008
Brunswick County
Engineer's Certification
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project,
(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.
Noted deviations from approved plans and specifications:
SEAL
Signature
Registration Number
Date
C_
7

v McKIM&CREED
v
March 15, 1999 M&C 0383-0048.OW
Ms. Linda Lewis
NCDENR
127 Cardinal Drive, Extension
Wilmington, NC 28405
RE: Acknowledgement of Receipt and Request for Additional Information
Dear Ms. Lewis:
This iletter is in response to your request for information on the Stormwater Management Permit
Application for Magnolia Greens, Parcels E and O, Sections 9 & 10 on January 5, 1999.
1. Pond 9-1 detail sheet still shows the Normal Water Surface Elevation as 24, while the calculations and
plans use 23. Please revise and submit two copies of the revised detail sheet.
The detail sheet has been revised and two copies are attached for your review.
2. As previously stated, the drawdown rate and orifice sizing are based on the volume PROVIDED in the
pond. You have again used the 1"volume for determining the orifice size. Also, the average head of
H/2 should be used in the orifice equation, resulting in an average flowrate, or the falling head orifice
equation could be used. I do not understand the theory behind using 1-1/3. 1 thought that had
,something to do with hydrostatic pressure acting on a submerged surface, not elevation head. Please
resize the orifice for Pond 9-1 using an average head, (or the falling head equation) and the
temporary storage volume actually provided in the pond. Per my calculation, the drawdown time is
less than 2 days using 2-2"p orifices. The average flowrate needs to be between .19 and .076 cfs. I
am returning the supplement form for use in making this change. Please also provide revised
calculations.
Orifice draw down calculations have been revised per your comments and the copies are
attached for your review.
3. When making corrections to the application, please do so in ink and initial and date the changes. Or
you may simply white out the old numbers and replace them. I am returning the application for your
use in making this change.
The old numbers have been replaced with the correct numbers.
If you have any questions or comments please feel free to call me.
Sincerely,
M (I & ED GINEERS P.A. ZF
�
/vww
Enclosures
0',M383\004MO315910 tr.doc
243 N. FRONT ST., WILMINGTON, NORTH CAROLINA 28401
TEL[phone] FAX[phone] www.Mckimcreed.com

to of North Carolina
)artment of Environment
l Natural Resources •
lilmingttin Regional Office pr
®®_M AN
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
DNCDENR
ivision of Water Quality NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 2, 1999
Mr. Jeff Roney
McKim and Creed
243 N. Front Street
Wilmington, NC 28401
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 981008
Magnolia Greens, Parcels E and 0, Sections 9 & 10
Brunswick County
Dear Mr. Roney:
The Wilmington Regional Office received previously requested information for the Stormwater
Management Permit Application for Magnolia Greens, Parcels E and 0, Sections 9 & 10 on January 5, 1999.
A preliminary review of that information has determined that the application is not complete. The following
information is needed to continue the stormwater review:
1. Pond 9-1 detail sheet still shows the Normal Water Surface Elevation as 24, while the
calculations and plans use 23. Please revise and submit two copies of the revised detail sheet.
,2. As previously stated, the drawdown rate and orifice sizing are based on the volume
PROVIDED in the pond. You have again used the minimum 1" volume for determining the
orifice size. Also, the average head of H/2 should be used in the orifice equation, resulting
in an average flowrate, or the falling head orifice equation could be used. I do not understand
the theory behind using H/3. I thought that had something to do with hydrostatic pressure
acting on a submerged surface, not elevation head. Please resize the orifice for Pond 9-1
using an average head, (or the falling head equation) and the temporary storage volume
actually provided in the pond. Per my calculation, the drawdown time is still less than 2 days
using 2-2"$ orifices. The average flowrate needs to be between .19 and .076 cfs. I am
returning the supplement form for your use in making this change. Please also provide revised
calculations.
3. When making corrections to the application, please do so in ink and initial and date the
changes. Or, you may simply white out the old numbers and replace them. I am returning the
application for your use in making this change.
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

Mr. Roney
March 2, 1999
Stormwater Project No. SW8 981008
----------------------------------------------
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to April 2 1999, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee. The Division is allowed 90 days from the receipt of a completed application to issue the
permit.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\981008.MAR
cc: Linda Lewis
Chris Stephens
Central Files

Permit No. )U:;9 g S i CX) f
(to be provided by D 1,VQ)
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 a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: ( 910 ) 343-1048
For projects with multiple basins, specify which basin this worksheet applies to: Pond #9 -1
Basin Bottom Elevation 16.0 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 23.0 ft. (elevation of the orifice)
Temporary Pool Elevation 25.1 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 13,582 sq. ft (water surface area at the orifice elevation)
Drainage Area 26.9 ac. (on-site and off-site drainage to the basin)
Impervious Area .$8 7�89- ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 48,281 - cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 32,751 cu. ft. (volume detained above the permanent pool)
Forebay Volume 9,413, cu. ft.
SA/DA' used 6 1.15 (surface area to drainage area ratio)
Diameter of Orifice 2`2 in.
Design TSS Removal 90 % (85% TSS removal required, see item k below)
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,November 1995) 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.
Form SWU-102 Rev I/August 1998 Page I of 3

g8<W8
3. Specify the type of project(check one):
X Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check appropriate blanks):
CAMA Major X Sedimentation/Erosion Control 404 Permit
1II. 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.
Curb and cutter storm drain collection system with enhanced treatment via wet detention ponds.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: **47.4 acres 4. Project Built Upon Area: 28.2 %
5. How many drainage basins does the project have? 2
6. Complete the following information for each drainage basin. If there are more than two drainage basins in the
project, attach an additional sheet with the information for each basin provided in the same format as below.
Basrii3nforaiation. ,. .,, Drama etBasm.FP.OND#10.:d _` i=.:;Drama`"eBasm 2!P.OND
Receiving Stream Name Sturgeon Creek Sturgeon Creek
Receiving Stream Class C-SW C-SW
Drainage Basin Area 1,219,220 SF 28.0 AC 1,171,764 SF 26.9 AC
Existing Impervious* Area 18,455 SF 47- g� 17 4 q
Proposed Impervious* Area 328,798 SF / o5' 7
%Impervious* Area total 28.5% 31,E
Im ergtous.*,- Surface Area� „ ,,,,�, ;..,.,.... Drama e'•Basm 1,,�...,. �; _,Drama
On-site Buildings 214,658 SF "i 1 .3 0,UUO'
On-site Streets 89,676 SF 49,032 SF
On-site Parking 0 SF 0 SF
On-site Sidewalks 22,464 SF 13,025 SF
Other on-site 2,000 SF PS SITE 0 SF ✓
Off site 18,455 SF }fir
Total: Y—=347,253 SF E=444 i 66 2 64,SS/
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sidewalks, gravel areas, etc.
7. How was the off-site impervious area listed above derived? From design information for Phase 1 of
subdivision (considered "Existing").
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded.
**PROJECT AREA FOR SECTIONS E & O ONLY(SEE MASTER PLAN)
Form: SWU-101 January 1998 Page 2 of

v RFC ) 1992q*�McKIM&CREED JAN 0 3 199sa
BY:
December 30, 1998 M&C 0383-0 .
Ms. Linda Lewis
NCDENR
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: December 1, 1998 request for additional information
Stormwater Project No. SW8 981008
Magnolia Greens, Parcels E &O, Section 9 & 10
Brunswick County, NC
Dear Linda,
As requested in your December 1, 1998 letter, please find enclosed the additional information you
requested for the above referenced stormwater submittal.
• (3) copies of supporting calculations
• (3) copies of revised plans
• (3) copies of revised applications
In addition to the enclosures we offer the following items to answer your questions and comments:
1. We will insure that all future submittals will be with the April, 1998 version of the
application form.
2. The application form has been revised to indicate that a portable pump will be used as
an emergency drain for Ponds 9 and 10. Pond 9-1 has been reshaped to provide the
3:1 ratio, and the application form has been revised to reflect this.
3. The Pond section has been revised to indicate the 7' depth.
4. The inlet to Pond 10 Forebay has been moved, as indicated on the revised plans.
5. Additional Pond dimensions have been added to Pond 9 & 10 details.
6.' Lot numbering has been revised for clarification. The master plan indicates that the lot
sizes of parcels E and O is 4,000 ftZ.
7.' Details have been revised to reflect the calculations elevations.
8. The impervious area and drainage calculations have been revised to reflect 52.5 lots at
4,000 ftz of impervious area.
9. The Pond 9-1 orifice size has been recalculated and revised on the drawings.
If,you have any additional questions or require additional information, please contact this office.
Sincerely,
Mc e ineers P.A.
Roney
41Senior Designer
cc: Margaret Gray, Landmark Development
243 N. FRONT ST., WILMINGTON, NORTH CAROLINA 28401
TEL [phone] FAX [phone] www.mckimcreed.com

Stale of North Carolina
Department of Environment /
and Natural Resources
R'ilmingtpn Regional Office ®RJRA
James B. Hunt, Jr., Governor WARENK
Wayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NATURAL RESOURCES
December 1, 1998
Mr. Davis Fennell
McKim and Creed
243 N. Front Street
Wilmington, NC 28401
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 981008
Magnolia Greens, Parcels E & O, Sections 9 & 10
Brunswick County
Dear Mr. Fennell:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Magnolia Greens, Parcels E & O, Sections 9 & 10 on October 9, 1998. A preliminary review of that
information has determined that the application is not complete. The following information is needed to
continue the stormwater review:
1. The application form submitted is dated January, 1998, at the bottom. Please discard all
applications with this date and begin using the April, 1998, version, which was mailed to
your company on September 22, 1998. Future packages received With the older forms will
be returned. For this project only, the older form will be accepted.
2. Several items on the wet detention supplement sheet have either been marked N/A, or have
not been satisfied. For Pond 9-1: the length to width ratio of 3:1 has not been satisfied; and
an emergency drain has not been specified (for ponds in the coast, a portable pump is
acceptable). For Pond 10, the emergency drain has not been provided. Please revise.
3. The pond section detail indicates a pond depth of 7.5', but the the ponds are only 7' deep. If
an additional 6" of depth is desired for sediment storage, please indicate this on the plans.
4. Relocate the inlet into the forebay of Pond 10 so that it enters at the top of the forebay, not
alongside the berm. This is needed so that the forebay area is totally utilized for its purpose.
5. Please provide additional dimensions for the permanent pools. The dimensions provided state
that they are for the permanent pool, but are drawn such that they appear to be for some
unknown higher elevation. Please dimension each side of the figure created by the permanent
pool contour, including all radii, to the best of your ability.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10°/ post-consumer paper

Mr. Fennell
December 1, 1998
Stormwater Project No. SW8 981008
----------------------------------------------
6. There are now duplicate lot numbers on the Master Plan. Two sections are labelled as 10.
Please renumber the lots in one of the duplicate sections to avoid confusion. The master plan
limits the lots in Section 10 to 3,500 ftz, but the application is for 4,000 ftz.
7. The supplement sheets and details for Pond 9-1 do not match up. The supplement shows a
permanent pool of 23 and an overflow at 25.1. The details show the orifice invert at 26, and
the overflow at 26.1. Please revise.
8. When you calculate the impervious area on the lots that drains to the pond, it is more
conservative to total up the number of whole lots and portions of lots that drain to the pond,
and determine an impervious area from that. For example, I count 52.5 lots that drain to Pond
9-1, which equates to 210,000 ft2 of impervious area, but you only account for 183,615 ftz.
9. For Pond 9-1, the two 2"$ orifices will draw down the pond in less than 2 days. The orifice
calculation is based on the volume provided in the pond, (32,751 ft3) not the minimum
required volume (30,632 ft3). Please revise. The same will apply to Pond 10, however, since
the volume provided and the volume required in Pond 10 was so close, the two 2"� orifices
specified do drawdown the pond in 2-5 days.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to January 4, 1999, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee. The Division is allowed 90 days from the receipt of a completed application to issue the
permit.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\981008.DEC
cc: Linda Lewis
Chris Stephens
Central Files

J3. Specify the type of project (check one):
X Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check appropriate blanks):
CAMA Major X Sedimentation/Erosion Control 404 Permit
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.
Curb and cutter storm drain collection system with enhanced treatment via wet detention ponds.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: **47.4 acres 4. Project Built Upon Area: 28.2 %
5. How many drainage basins does the project have? 2
6. Complete the following information for each drainage basin. If there are more than two drainage basins in the
project, attach an additional sheet with the information for each basin provided in the same format as below.
Basin€Information Drama a Basm;le-POND#10.. _ " !`...=..:D rauia'dMasm'`2$©ND
Receiving Stream Name Sturgeon Creek Sturgeon Creek
Receiving Stream Class C-SW ' C-SW
Drainage Basin Area 1,219,220 SF (28.0 AC 1,171,764 SF 26.9 AC
Existing Impervious* Area 18,455 SF 173,359 SF
Proposed Impervious* Area 328,798 SF 169,807 SF
% Impervious* Area (total) 28.5% 1 29.3%
On-site Buildings 214,658 SF 107,750 SF
On-site Streets 89,676 SF 49,032 SF
Oh-site Parking 0 SF 0 SF
On-site Sidewalks 22,464 SF 13,025 SF
Other on-site 2.000 SF (PS SITE) 0 SF
Off site 18,455 SF 173,359 SF
Total: Y=347,253 SF E=343,166 SF
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sidewalks, gravel areas, etc.
7. How was the off-site impervious area listed above derived? From design information for Phase 1 of
subdivision (considered "Existing").
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded.
**PROJECT AREA FOR SECTIONS E & O ONLY (SEE MASTER PLAN)
Form: SWU-101 January 1998 Page 2 of

"1 Permit No. `1 LU F �9 I cxi f
(to be provided by DWQf
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 Manaeement Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: ( 910 ) 343-1048
For projects with multiple basins, specify which basin this worksheet applies to: Pond #9 -1
Basin Bottom Elevation 16.0 ft. r (average elevation of the floor of the basin)
Permanent Pool Elevation 23.0 ft. (elevation of the orifice)
Temporary Pool Elevation 25.1 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 13,582 sq. ft (water surface area at the orifice elevation)
Drainage Area 26.9 ac. (on-site and off-site drainage to the basin)
Impervious Area 7.89 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 48,281 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 32,751 cu. ft. (volume detained above the permanent pool)
Forebay Volume 9,413, cu. ft.
SA/DA' used 0 .9186 (surface area to drainage area ratio)
Diameter of Orifice 2x 2 in.
Design TSS Removal 90 % (85% TSS removal required, see item k below)
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,November 1995) 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.
Form SWU-102 Rev 1/August 1998 Page I of 3

Applic�als
a. The temporary pool controls runoff from the 1 inch storm-
y ' / b. The basin length to width ratio is greater than 31 Ala —t Z: I
c. The basin side slopes above the permanent pool are no steeper than 3:1.
d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified.
f An emergency drain is provided to empty the basin.
f g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
A10h. The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
zp o t j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool..
L 1 1. A 30-foot vegetative filter is provided at the outletz (include erosive flow calculations)
m. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the O&M plan.
q. A debris check to be performed after every storm event is specified in the O&M plan.
T. Specific clean-out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan' (include name and title).
— t. If the basin is used for sediment and erosion control during construction, clean out of the basin is
specified to be performed prior to use as a wet detention basin.
r
Footnotes:
When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-standard
table entries.
'The requirement for a vegetative filer may be waived if the wet detention basin is designed to meet 90%TSS removal.
'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.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment systems
(pretreatment other than forebays), and the vegetated filter if one is provided.
L9nd
This system (check one) ❑does does not incorporate a vegetated filter.
This system (check one) ❑does M/does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
1. After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998 Page 2 of 3

�1
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass
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.
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. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a
wet detention basin or stream, etc.).
The original design depth is: 7'
The sediment removal benchmark depth is : 5.25'
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
r
6. If the basin must be drained for an emergency dr to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
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 above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project, responsible party, or address.
Print name: W. Christopher Stephens
Address : P. O. Box 4127 ilmington, NC 2 406
Phone: [phone]f_�
Title : Presi
Signature
Date
I, -Be S. _ a Notary Public for the State of AAA CQ/011A �
7
County of lt✓ do hereby certify that fly• Cri �aP�Q� /L5
personally appeared before me this � day of Ocfz6n 19 and acknowledge the
due execution of the forgoing infiltration system maintenance requirem�gwokViVess my hand and official seal,
D ,,��.•4 DIY S.PO%'
1 SEAL NOTARY
My corn rmision expires
Vim•• PUBUC i2V�
.......... ���l��o.
Forth SWU-102 Rev 1/August 1995 Page 3 of 3 ������/VO,EI ,;t

i Permit No. s t.- i Q s t oo's
(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 a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: ( 910 ) 343-1048
For projects with multiple basins, specify which basin this worksheet applies to: Pond #10
Basin Bottom Elevation 12.0 ft. r (average elevation of the floor of the basin)
Permanent Pool Elevation 19.0 ft. (elevation of the orifice)
Temporary:Pool Elevation 20.3 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 22,558 sq. ft (water surface area at the orifice elevation)
Drainage Area 28.0 ac. (on-site and off-site drainage to the basin)
Impervious Area 7.97 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 83,516 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 31,984 cu. ft. (volume detained above the permanent pool)
Forebay Volume 16,975 cu. ft.
SA/DA' used 0 .917 (surface area to drainage area ratio)
Diameter of Orifice 2x 2 in.
Design TSS Removal 90 % (85% TSS removal required, see item k below)
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, November 1995) 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.
Form SWU-102 Rev I/August 1998 Page I of 3

Applicants I itials
a. The temporary pool controls runoff from the 1 inch storm event.
71
l b: The basin length to width ratio is greater than 3:1.
c. The basin side slopes above the permanent pool are no steeper than 3:1.
d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified.
NO An emergency drain is provided to empty the basin.
i g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
Zp j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool.
IV l• 1. A 30-foot vegetative filter is provided at the outlet'' (include erosive flow calculations)
in. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
. A vegetation managemenUmowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the O&M plan.
q. A debris check to be performed after every storm event is specified in the O&M plan.
r. Specific clean-out benchmarks are specified in the O&M plan (elevation or depth).
A legally responsible party is designated in the O&M plan' (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the basin is
specified to be performed prior to use as a wet detention basin.
r
Footnotes:
When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-standard
table entries.
'The requirement for a vegetative filer may be waived if the wet detention basin is designed to meet 90%TSS removal.
'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.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment systems
(pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ❑does Qdoes not incorporate a vegetated filter.
This system (check one) ❑does Q"does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
1. After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev I/August 1998 Paget of 3

a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass
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.
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. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a
wet detention basin or stream, etc.).
The original design depth is: 7'
The sediment removal benchmark depth is : 5.25'
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
r
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.
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 above
maintenance procedures. 1 agree to notify DWQ of any problems with the system or changes in the name of the
project, responsible party, or address.
Print name: W. Christopher Stpphens a
Address : P. O. Box 41 7, it in" on, NC 28406
Phone: (910) 2-7 0
Title : Presi t/
Signature : � j
Date :
v ,,,ff � '� //� �I
1 �1t� $ —RD2 a Notary Public for the State of_lV0lTr1 �1U'GVInL
County;of (1 _ Q✓ o hereby certify that /Q, !s
personally appeared before me thi! " day of OCJ264.4f 19 , and acknowledge the
due execution of the forgoing infiltration system maintenance require�WH "°4lagjess my hand and official seal,
SEAL NOTARY I:
My commission expires ptl,g 601 —�—
:2• PUBUC :V
:;nay'• • ?:`
Forth SWU-102 Rev I/August 1998 Page 3 of 3 �040
�n,O, '.�.�``��,

v�MCKIN4&CREEDVE� LETTER OF TRANSMITTAL
OCT a 8 °AI E: October 5, 1998
TO: NCDENR 1 ,_w? FIR i JECTNo: 03830048 TASK"°` DESIGN
127 Cardinal Drive Extension RE: Magnolia Greens - Sections 9 & 10
Wilmington, NC 28401 Stormwater
ATTENTION: Linda Lewis TRANSMITTAL NO. PAGE 1 OF 1
WE ARE SENDING: ❑ Originals ® Prints ❑ Shop Drawings ❑ Samples
❑ Specifications ® Calculations ® Other-Application, Calc.'s
Quantity Drawing No. Rev. Description Status
2 Stormwater Management Permit Application Form G
1 Low Density Supplement G
1 ea. Wet Detention Basin Supplements G
1 Design Narrative G
1 Supporting Calculations G
2 sets Plans, Details G
1 Application Fee ($225.00) G
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review& Comments G. For Approval H. See Remarks
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected - See Remarks
REMARKS: Attached please find for your review and approval the above notated materials. If you have
any questions or require additional information regarding this matter, please contact this
office.
243 N.FRONT ST.,WILMINGTON,NC 28401 9101343-1048 FAX [phone]
cc: Margaret Gray, Landmark(2) McKIM & CREED ENGINEERS, PA
Greg Hetzler
file (03830048(40))
Signed
K. Davis ennell, E.I.T.
s:\0383\0048\ad min\Sto"Tra ns.d oc

.OFFICE USE ONLY"" „-., .
Fee Paid
CO 5 O U
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
I. GENERAL INFORMATION:
1. Applicant's name (specify the name of the corporation, individual, etc. who owns the project):
Landmark Developers, Inc.
2. Print Owners/Signing Official's name and title (the person who is legally responsible for the facility and its
compliance):
W. Christopher Stephens, President
3. Mailing Address for person listed in item 2 above:
P. O. Box 4127
City: Wilmington State: NC Zip: 28406
Telephone Number: ( 910 ) 392-7201
4. Project Name (subdivision, facility,or establishment name - should be consistent with project name on plans,
specifications, letters,operation and maintenance agreements, etc.):
Magnolia Greens Q a l 0 1 '�h G2�� E 0
5. Location of Facility (street address):
Highway 17 just south of highway 74/76 interchange.
City: Leland County: Brunswick
6. Directions to facility (from nearest major intersection):
From Wilmington, take 17 south in Brunswick County. Subdivision fronts highway 17 just south of
highway 74/76 interchange.
7. Latitude: 340 13' 42" Longitude: 780 2' 59" of facility
8..Contact person who can answer questions about the facility:
Name: Greg Hetzler, McKim&Creed Telephone Number: ( 910 ) 343-1048
H. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal X Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list
the existing permit number SWS ')"10104 and its issue date (if known) -5[RO hB
Form: SWU-101 January 1998 Page I of

98 too
3. Specify the type of project(check one):
X Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements(check appropriate blanks):
CAMA Major X Sedimentation/Erosion Control 404 Permit
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.
Curb and cutter storm drain collection system with enhanced treatment via wet detention ponds.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: **47.4 acres 4. Project Built Upon Area: 28.2 %
5. How many drainage basins does the project have? 2
6. Complete the following information for each drainage basin. If there are more than two drainage basins in the
project, attach an additional sheet with the information for each basin provided in the same format as below.
Basin:Information Draina c Basm,l"POND-#10<<: �i -Drainage Basm"2 POND#9,1 ',
Receiving Stream Name Stur eon Creek Sturgeon Creek
ReceivingStream Class C-SW C-SW
Drainage Basin Area 1,219,220 SF 28.0 AC 1,171,764 SF 26.9 AC
Existing Impervious* Area 18,455 SF 177 494 SF
Proposed Impervious* Area 328,798 SF 192,057 .SF
Impervious* Area total 28.5% 1 5
Im eiious*-Surface Area. Draina eBasin•1 ' .+:Draina e:Basin,2 ,
On-site Buildings 214,658 SF 130,000SF
,On-site Streets 89,676 SF 49,032 SF
On-site Parking 0 SF 0 SF
On-site Sidewalks 22,464 SF 13,025 SF
Other on-site 2,000 SF PS SITE 0 SF
Off site 18,455 SF 177,494 SF
Total: I Y—=347,253 SF E_ 369,591 SF
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sidewalks, gravel areas, etc.
7. How was the off-site impervious area listed above derived? From design information for Phase I of
subdivision(considered "Existing").
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded.
**PROJECT AREA FOR SECTIONS E & O ONLY(SEE MASTER PLAN)
Form: SWU-101 January 1998 Page 2 of

By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the items required by the permit, 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.
VI. AGENT AUTHORIZATION
If you wish to designate submittal authority to another individual or firm so that they may provide information
on your,behalf,please complete this section:
Designated agent(individual or firm): McKim& Creed Engineering
Mailing Address: 243 North Front Street
City: Wilmington State: NC Zip: 28401
Phone: ( 910 ) 343-1048 Fax: ( 910 ) 251-8282
VII. SUBMITTAL REQUIREMENTS
This application package will not be accepted by the Division of Water Quality unless all of the applicable
items are included with the submittal.
1. Please indicate that you have provided the following required information by signing your initials in the
space provided next to each item.
Applicant's Iq�ti
• Original and one cop m
v of the Storwater Management Permit Application Form GJ1A !J
• One conv of the applicable SUDDlement Form(s) for each BMP (see Attachment A }N
• Permit application orocessing fee (see Attachment Al
• Detailed narrative description of stormwater treatment/management:
• Two conies of Dlans and specifications including:
Development/Project name
Engineer and firm
Legend
North arrow
Scale
Revision number& date
Mean high water line
Dimensioned property/project boundary
Location map with named streets or NCSR numbers
Original contours,proposed contours, spot elevations, finished floor elevations
Details of roads, parking, cul-de-sacs, sidewalks, and curb and gutter
Wetlands delineated, or a note on plans that none exist
Existing drainage (including off-site), drainage easements, pipe sizes, runoff calculations
- Drainage basins delineated
Vegetated buffers(where required)
VIII. APPLICANT'S CERTIFICATION
I, (Iirint or type name ofperron listed in General Information, item 2) W. Christopher Stephens
certify that the information mclud d on this enri t application form is correct, that the project will be
constructed in conformance w' th approv ans, that the deed restrictions in accordance with Attachment A
of this form will be recorde w' all re it permit conditions, and that to the best of my knowled e the
proposed project cp s h it e A NCAC 2H.1000. /
Signature: VV Date: [
+ Title: President
Form: SWU-101 January 1998 Page 3 of 4

ATTACHMENT A
1. Deed Restriction Requirements
The following statements must be recorded for all low density projects and for all projects that involve the
subdivision and selling of ots or outparcels:
1. Nomorethan4600 square feet of any lot, including that portion of the right-of-way between the
edge ofpavement and the front lot line, shall be covered by impervious structures, including
asphalt, gravel, concrete, brick, stone, slate or similar material but not including wood decking or
the surface of swimming pools. This covenant is intended to insure continued compliance with the
stormwater permit issued by the State of North Carolina. The covenant may not be changed or
deleted without the consent of the State.
2. No one may fill in,pipe, or alter any roadside swale except as necessary to provide a mininhum
driveway crossing.
NOTE: If lot sizes vary significantly, the owner/developer must provide,an attachment listing each lot
number, size, and the allowable built-upon area for each lot.
For commercial projects that have outparcels or future development the following statements must also be
recorded.
3. The connection from the outparcel or future area into the stormwater system must be made into the
forebay such that short-circulating of the system does not occur.
4. All built-upon area from the outparcel or future development must be directed into the permitted
stormwater control system.
5. Built-upon area in excess of the permitted amount will require a permit modification prior to
construction.
For curb outlet systems, the following statement in addition to items 1 and 2 above must be recorded:
6. No one may pipe,fill on or alter any designated 100 foot long grassed Swale used to meet the
requirements of NCAC 2H.1008(g).
2. Supplement Forms
The applicable supplement form(s) listed below must be submitted for each BMP specified for this project:
Form SWU-102 Wet Detention Basin Supplement
Form SWU-103 Infiltration Basin Supplement
Form SWU-104 Low Density Supplement
.Form SWU-105 Curb Outlet System Supplement
-Form SWU-106 Off-Site System Supplement
Form SWU-107 Underground Infiltration Trench Supplement
Form SWU-108 Neuse River basin Nutrient Management Strategy Supplement
3. Permit Application Fees (check made payable to NCDENR and submitted to the appropriate Regional
Office)
Type of Permit New, Modification, or Timely Renewal Without
Late Renewal Modification
Low Density $225 n/a
High Density $385 $225
Other $225 n/a
Director's Certification $350 n/a
General Permit $50 n/a
Form: SWU-101 January 1998 Page 4 of

Permit No. sw Viz 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
LOW DENSITY SUPPLEMENT
This form may be photocopied for use as an original
A low density project is one that meets the appropriate criteria for built upon area and transports stormwater
runoff primarily through vegetated conveyances. Low destiny projects should not have a discrete stormwater
collection system as defined by 15A NCAC 2H .1002(18). Low density requirements and density factors can be
found in 15A NCAC 21-1 .1005 through .1007.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: [phone]
Number of Lots: 99 Square Feet Per Lot*: 4,000 SF/Lot
*If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon area
for each lot.
II. BUILT UPON AREA
See the Stormwater Management Permit Application Attachment A for specific language that must be recorded
in the deed restrictions for all low density projects.
For uniforin lot sizes, complete the following calculation in the space provided below where:
• SA Site Area- the total project area above Mean High Water. Wetlands may be excluded when the
development results in high density pockets.
• DF Density Factor - the appropriate percent built upon area divided by 100.
• RA Road Area- the total impervious surface occupied by roadways.
• OA Other Area- the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc.
• No. Lots is the total number of lots in the subdivision.
• BUA/Lot is the computed allowable built upon area for each lot including driveways and impervious
surfaces located between the front lot line and the edge of pavement.
(SA x DF) - RA - OA = BUA
No. Lots Lot
Calculation:
(2,064,744 SF x 0.30) - 140,956 SF - 35,141 SF =4478 SF
99 Lot
—> Say 4000 SF/Lot
Form: SWU-104 Rev 1/August 1998 Page 1 of

III. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate that the following requirements have been met and supporting
documentation is provided as necessary. If the applicant has designated an agent in the Stormwater Management
Permit Application Form, the agent may initial below.
Ap licants I
/�I ( A 30 foot vegetative buffer is provided adjacent to surface waters. Projects in the Neuse .
River basin may require additional buffers.
b. Deed restriction language shall be recorded as a restrictive covenant. A copy of the recorded
document shall be provided by DWQ within 30 days of platting and prior to sale of any lots.
c. Built upon area calculations are provided for the overall project and all lots.
(� Project conforms to low destiny requirements within the ORW AEC (if applicable). [15A
NCAC 2H .1007(2)(b)]
Form: SWU-104 Rev I/August 1998 Page 2 of 2

Permit No. f 8 1 cx)
(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 nuty be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: ( 910 ) 343-1048
For projects with multiple basins, specify which basin this worksheet applies to: Pond#9 -1
Basin Bottom Elevation 16.0 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 23.0 ft. (elevation of the orifice)
Temporary Pool Elevation 25.1 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 13,582 sq. ft (water surface area at the orifice elevation)
Drainage Area 26.9 ac. (on-site and off-site drainage to the basin)
Impervious Area 8.48 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 48,281 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 32,751 cu. ft. (volume detained above the permanent pool)
Forebay Volume 9,413, cu. ft.
SAIDA' used 1.15 (surface area to drainage area ratio)
Diameter of Orifice 2'2 in.
Design TSS Removal 90 % (85% TSS removal required, see item k below)
IL 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, November 1995) 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.
Form SWU-102 Rev I/August 1998 Page I of 3

Applic t als
a. The temporary pool controls runoff from the I inch storm event.
± 30 b. The basin length to width ratio is greater than 3:1. -
c. The basin side slopes above the permanent pool are no steeper than 3:1.
d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified.
P f. An emergency drain is provided to empty the basin:
f g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
It. The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
ZD o. j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided in the permanent pool..
1. A 30-foot vegetative filter is provided at the outlet' (include erosive flow calculations)
in. Recorded drainage easement for each basin including access to nearest right-of-way.
n. A site specific operation and maintenance (O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the 0&M plan.
q. A debris check to be performed after every storm event is specified in the O&M plan.
r. Specific clean-out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan' (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the basin is
specified to be performed prior to use as a wet detention basin.
Footnotes:
When using the Division SA/DA tables,the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious%and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-standard
table entries.
'The requirement for a vegetative filer may be waived if the wet detention basin is designed to meet 90%TSS removal.
'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.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, forebay, non-integrated pretreatment systems
(pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) ❑does Mdoes not incorporate a vegetated filter.
This system (check one) ❑does 5does not incorporate non-integrated pretreatment.
Maintenance activities shall be performs as follows:
1. After'every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998 Page 2 of 3

a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, grass
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.
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. Removed sediment shall be disposed of in an appropriate
manner and shall not be handled in a manner that will adversely impact water quality (i.e. stockpiling near a
wet detention basin or stream, etc.).
The original design depth is: 7'
The sediment removal benchmark depth is : 5.25'
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged to grow along the basin perimeter.
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.
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 above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project,responsible party, or address.
Print name: W. Christopher Stephens
Address : P. O. Box 4127 ilmington, NC 2 406
Phone: [phone]
Title : Presi
Signature : ,/
Date : 11 - I ` 'a
I, �G�[, S. RrZ _ a Notary Public for the State of AV �'` ceyo l a
County of 2Lt) Q✓ _ dp hereby certify that /I)• C kris}aP�n tL
personally appeared before me this _� day of ��n 19�—, and acknowledge the
due execution of the forgoing infiltration system maintenance requiremgptoj Wi2;iess my hand and official seal,
mil • G� SEAL NOTFRY
Y p 1AD1 M coon ex fires = —�—
Z: PUBIJC ; V
R` '•. r 2.
,,ty • �y %
Form SWU-102 Rev 1/August 1998 Page 3 of 3 •,,��'�•,�,ND,Ea, �,,,

Permit No. SW � Q?100$
(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
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Magnolia Greens Sections 9 and 10
Contact Person: Greg Hetzler, McKim & Creed Phone Number: ( 910 ) 343-1048
For projects with multiple basins, specify which basin this worksheet applies to: Pond #10
Basin Bottom Elevation 12.0 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 19.0 ft. (elevation of the orifice)
Temporary Pool Elevation 20.3 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 22,558 sq. ft (water surface area at the orifice elevation)
Drainage Area 28.0 ac. (on-site and off-site drainage to the basin)
Impervious Area 7.97 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 83,516 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 31,984 cu. ft. (volume detained above the permanent pool)
Forebay Volume 16,975 cu. ft.
SA/DA' used 0 .917 (surface area to drainage area ratio)
Diameter of Orifice 2' 2 in.
Design TSS Removal 90 % (85%TSS removal required, see item k below)
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, November 1995) 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.
Form SWU=102 Rev I/August 1998 Page I of 3

STORMWATER DESIGN NARRATIVE
AND
SUPPORTING CALCULATIONS
SECTIONS 9 & 10
at MAGNOLIA GREENS
Brunswick County, North Carolina
prepared for
Landmark Developers, Inc.
PO Box 4127
Wilmington,North Carolina 28406
[phone]
August, 1998
L
E
022 7
i s F YIN �f'•��
Prepared by
McKim and Creed Engineers
243 North Front St.
Wilmington, North Carolina 28401
[phone]

DESIGN NARRATIVE
1. GENERAL:
The project site is located within the Magnolia Greens subdivision near the entrance from Hwy.
17 within Brunswick County, North Carolina. The project site is approximately 48 acres.
Drainage considerations are to be in accordance with DEM stormwater requirements.
The intent of this project is to construct roadway and drainage systems within Sections 9 and 10.
2. EXISTING SITE:
Site topography in the area is relatively flat with slopes typically less than (1) one percent.
Vegetation consists primarily of grasses and minor ground cover within the area of the
improvements. Subsurface soils are typically a mixture of sands, silty sands and organics.
3. PROPOSED IMPROVEMENTS:
Improvements proposed include the construction of roadways, sanitary sewer and storm drainage
collection systems, and water distribution systems to serve Sections 9 and 10.
4. STORMWATER TREATMENT CONSIDERATIONS:
All stormwater collected in the curb and gutter system will be provided enhanced treatment via.
two proposed wet detention ponds. Compliance with all parameters of stormwater treatment is
documented in the attached calculations.