SW8980311_HISTORICAL FILE_19980312 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 q $ 03 11
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
jqq � 03 12
YYYYMMDD

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
Mr. Jon T. Vincent, Manager
Gulf, Worsley & Cowper, LLC
5315 South College Road
Wilmington, NC 28412
Dear Mr. Vincent:
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
March 12, 1998
Subject: Permit No. SW8 980311
Pembroke Townhomes, Phase III
High Density Subdivision Stormwater Project
New Hanover County
The Wilmington Regional Office received the Stormwater Management Permit Application for Pembroke Townhomes, Phase
III on May 13, 1997, with final information on January 26, 1998. Staff review of the plans and specifications has determined
that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 21-1.1000. We are
forwarding Permit No. SW8 980311, dated March 12, 1998, for the construction of the project, Pembroke Townhomes, Phase
III.
This permit shall be effective from the date of issuance until March 12, 2008, 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.
Ifany parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory
hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a
written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at (910)
395-3900.
Sincerely,
Rick Shiver, P.G.
Acting Regional Water Quality Supervisor
RSS/arl: S:\WQS\STORMWAnPERMIT\98031 LMAR
cc: Phil Tripp, P.E.
Tony Roberts, New Hanover County Inspections
Beth Easley, New Hanover County Engineering
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

State Stormwater Management Systems
Permit No. SW8 980311
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
Gulf, Worsley & Cowper, LLC
Pembroke Townhomes, Phase III
New Hanover County
FOR THE
construction, operation and maintenance of a detention pond in compliance with the provisions of 15A NCAC
2H .1000 (hereafter referred to as the "stormwater rules") and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until March 12, 2008 and shall be subject to the following
specified conditions and limitations:
I. DESIGN STANDARDS
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 subdivision is permitted for 15 lots. Each lot is allowed a
maximum built -upon area, in square feet, as follows: Lots 1, 2, 4, 7, 10, 11, 13 &15 @4,700; Lots 3,
5, 6, 8, 9, 12, & 14 @4,600.
Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.

State Stormwater Management Systems
Permit No SW8980311
DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Total Impervious Surfaces, ft2:
15 lots
Roads/Parking, ft2
Offsite Area entering Pond, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft2:
Required Storage Volume, ft3:
Provided Storage Volume, ft3:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
Pembroke Townhomes, Phase III
980311
New Hanover County
Mr. Jon T. Vincent, Manager
Gulf, Worsley & Cowper, LLC
5315 South College Road
Wilmington, NC 28412
May 13, 1997
Motts Creek
"SC"
n/a
7
16
82,810
69,800
13,010
none, per Engineer
2,902
3,356
7,082
10,405
18.4
1.25" Diameter pipe
t�'

State Stormwater Management Systems
Permit No, SW8 980311
4. 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.
5. 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.
6. 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.
In addition, the Director may determine that other revisions to the project should require a modification
to the permit.
7. 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.
II. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the stormwater
management system:
a. The stormwater management system shall be constructed in it's entirety, vegetated and operational
for it's intended use prior to the construction of any built -upon surface except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will
be repaired immediately.
2. 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.
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.

State Stormwater Management Systems
Permit No. SW8 980311
4. 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.
5. 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.
6. 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 for Lots 1, 2, 4, 7, 10, 11, 13 &15 is 4,700 square feet,
and for Lots 3, 5, 6, 8, 9, 12, & 14, it is 4,600 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. "Roof drainage shall be directed toward the detention pond."
e. "All lots shall be graded to drain from the rear toward the street."
7. 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.
8. 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.
9. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a
minimum of ten years from the date of the completion of construction.
E

State Stormwater Management Systems
Permit No SW8 980311
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or
there is a name change of the Permittee, a "Name/Ownership Change Form" must be submitted to the
Division of Water Quality accompanied by appropriate documentation from the parties involved, such as
a copy of the deed of trust. Other supporting materials, such as a signed Operation and Maintenance plan
in the case of engineered systems, will also be required. The project must be in good standing with
DWQ. The approval of this request will be considered on its merits and may or may not be approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute
143-215.6A to 143-215.6C.
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.
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 March, 1998.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C' .1. -%1--� n .4, A�A,20 _/�7
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 980311
0

State Stormwater Management Systems
Permit No. SW8 980311
Pembroke Townhomes, Phase III
Stormwater Permit No. SW8 980311
New Hanover 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,
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:
Signature
Registration Number
Date
SEAL
7

~'�,Tt h1
POND MAINTENANCE REQUIREMENTS
Project Name: Pembroke Townhomes (�.=G Project No.
n E C E I V E D
Iluunnuu{{ NOV 1 01997 D
D E
PROD A �i168_CY%
Responsible Party: Gulf, Worsley & Cowper, L.L.C. Phone No. (9101 799-6901
Address: 5315 South College Road, Wilmington, NC 28412
Monthly, or after every runoff producing rainfall event, whichever comes first:
A. Inspect trash rack; remove accumulated debris, repair/replace if it is not functioning.
B. Inspect and clear the orifice of any obstructions. If a pump is used as the drawdown
mechanism, pimp operation will be checked. A log of test runs of the pump will be kept
on site and made available to DEM personnel upon request.
C. Inspect the pond side slopes and grassed inlet swales; remove trash, and repair eroded
areas before the next rainfall event.
D. If the pond is operated with a vegetated filter, the filter will be checked for sediment
accumulation, trash accumulation, erosion and proper operation of the flow spreader
mechanism. Repairs/cleaning will be done as necessary.
It Quarterly:
A. Inspect the collection system (i.e. catch basins, piping, grassed swales) for proper
functioning. Accumulated trash will be cleared from basin grates, basin bottoms, and
piping will be checked for obstructions and cleared as required.
B. Pond inlet pipes will be checked for undercutting, riprap or other energy dissipation
structures will be replaced, and broken pipes will be repaired.
Ill. Semi-annually:
A. Accumulated sediment from the bottom of the outlet structure will be removed.
B. The pond depth will be checked at various points. If depth is reduced 75% of original
design depth or 3 feet whichever is greater, sediment will be removed to at least the
original design depth. �5;�„ ds = 7T
C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year as
necessary. APPROVE®
NORTH CAROLINA ENVIRONMENTAL
MANAGEMENT COMMISSION
DIVISION OF WATER QUALITY
DataSM K/cfS 4V
Stormwater Parmlt NO.SW'S9/680Cp AOP

POND MAINTENANCE REQUIREMENTS
PAGE 2
IV. General:
A. Mowing of the side slopes will be accomplished according to the season. Maximum grass
height will be 6".
B. Cattails are encouraged along the pond perimeter, however they will be removed when
they cover more than the surface area of the pond.
C. The orifice/pump is designed to draw down the pond in 2-5 days. If drawdown is not
accomplished in that time, the system will be checked for clogging. The source of the
clogging will be found and.eliminated.
D. All components of the detention pond system will be kept in good working order. Repair
or replacement components will meet the original design specifications as per the approved
stormwater plan.
V. Special Requirement:
I, -ToVl U iV\C.2 n , hereby acknowledge that I am the financially
responsible party for maintenance of this detention pond. I will perform the maintenance as outlined
above, as part of the Certification of
Compliance with Stormwater Regulations received for this project.
Signature: N�2 Date: 10II �1
I, MoKcoi. L— a IS i a Notary Public for the State of W VA-� "I i ✓l0..
County of N et& , do hereby certify that T011 V i vl U-*\-+
personally appeared before me this l7p, day of 0C,7I 6-e,r , 19 IL-L. and acknowledge the
due execution of the foregoing instrument. Witness my hand and official seal,
may-
ARY
/
My commission expires
DA/arl: S:\WQS\STORMWAT\FORMS\O&M-POND. FOR

�'vaVI

w
DIVISION OF WATER QUALITY TE 9703
NORTH CAROLINA STORNIWATER MANAGEMENT PERMIT APPLICATION
I. GENERAL, INFORMATION
(Please print clearly or type)
1. Project Name Pembroke Townhomes
2. Location, directions to project (include County, Address, State Road) Attach map. New Haonver County
3. Owner's Name Gulf Worsley, & Cowper, LLC Phone [phone]
4. Owner's Mailing Address 5315 South College Road
City Wilmington State NC Zip 28412
5. Nearest Receiving Stream Unnamed tributary of Motts Creek Class
6. Projectdescription 15 single-family _residential o homPc with oav,.,i access and concrete
II. PERMIT INFORMATION
I. PermitNu. r br uedinb,OtvQ, 6W Y q8 U 31 /
_.,ApplicationDate May 5, 1997 (awco Feeenc!osedS 385.00
3.Pe;mitType:_
_New
Renewal X
ivlodir(cation(esistingPermitMo.r91-e
@
4. Project Type:
_Low Density
y Dete ition_Inriltration_Redevelop_General_.Alcer_Ottsite
5. Other State/Federal Permits/.Approvals Required (Greek appropriateblanksi
CAMA Nlajor Sedimentation/Erasion Control X 404 Permit
11I. BL-ILT UTON AREA (Please tee NCIC'-X.IW5 thn, . ((X)7jor appiieabie detuiry limits)
Drainage Drainage Breakdown of Impervious Area
Basin Basin (Please indicate below the design impemnza area)
Classification SC Building
-A
N/A Streets 1 SF
Existin,a Built -upon Area
�2 �SloSp
Proposed Built -upon Area �^ ParkingiSw
Total Project Area
o Built -upon Area
209,C38 Sc
34.616
-3S96-
IV. STORMW:ATER TREATMENT (Describe how the nau)Lvill be seated)
Cther
-821-8-10 ew
Totals SF

V. ''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
for the type of project applied for.
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 covenant cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot.
VI. OWNER'S CERTIFICATION
I> TA I U IAi l� certify that lire information included on [liis permii
(Please print clearly or type)
application form is correct, that the project will be constructed in conformance with the approved plans, that
the deed restrictions will b recorded with all required permit conditions, and that to the best of my knowledge,
the proposed prn
ith requirements of 15A NCAC 2H.1000.
I authorize the so or firm to submit stormwater plans on my behalf.
v '9- ss C7
O ner/A t orized A nt Signature and Title Date
VII. AGENT AUTHO ATION (Please fill in the name of the engineer/surveyor authorized to submit platu no the otwuer's heltalf.)
Person or firm name Tripp Engineering, P.C.
Mailing Address 507 Chestnut Street
City Wilmington, State NC Zip 28401 Phone [phone]
Please submit application, fee, plans and calculations to the appropriate Regional Office.
cc: Applicant/WiRO//Central Files
Office use only
SIORMWATE
RECEIVED
MAY 13 1997
BY: auS 9 Ic-f3O(o

ATTaCEr:�LENr A
i3O;v DENSITY AND SUBDIViSI i PPOJECTS
GENERAL SU.13a`TTAL REt21IlRENKEh TS
1 A completed stornwatC' permit aoolication.
2. Two seu o£ plans showing nor-.n arrow,escale, revision etghtwproperty/project eands, eeasz boundaries, lot
30'
proposed and existing contours, drainag. areas,
minimum s'e;etated buyer between impervious areas and surface waters, Proposed impzr+ieus areas.
and road c:oss•secrcns.
Calculations of hz built tern area. Fe cat
or subdivisions, please sl:cw the methedcieg'y ier a:::: trig at he
oer lot bult•upon area. Fer icn•subdivis:cn Projects, please break down'-`-:cr. fair buiidiar,
road par'cin;, x•d ethz: (include ail imperliras areas).
i Lew der:sir! prcjec:s wi `: c :b and Tare: will acquire:
a, Draina;e area delu:eat:on and Swale lecaticns shownPJr.^z Plans
b. Detaile£ due sw le, shewir; :nin3muta 5:1 side sic-,_
Ca1CL'la.:cns. inn:C1L:^.$ 3 .^.Un
CS:Ve �pw IC; ;he 10 'Jr >iC:....
�' n C:—i is
d t;evatiens. Ala: :un lcr.; r�diaa sloe n.
vece•at_d sever sPeciited ca az par
D EYD
�� i wir.^ stctz zr s must bz included I. l iow dzasiLy prcjr_s. a
nd
The, 7 _
'ACSCL.:re; ee: �I a7C7 1Ct, i; tC:i(L/ind :iu: porr.'on or>"w Hcl oz: ,,,eUn :nP Z�o?
NO mere [ham
r ravel.
Of mere e74 and the lror. !cr ire, sitali b+ covered fi' ilrPe. dour srrlc:icz., inc_uc
::ocd de•^..en; or rrz "Vare :u.-cce er stivirnmin3
"�°� „Shea ✓v cite :are
C-nare[e, or'c.E. nacre, rla:e Or si Ri:ar Ina..... i, not including _
PCOis. TIds ccv-sne-n: iS in: �'7G2a :O �R.SiJe C07 .ran^e ued 0 or ide!e ed Without :le Cr_'Z71: O% :Its" $i.::iancz with - 'Of e.
of Vorrlt G:roiina. 7'ne covenar. nr ' .ae: b
Vo one ntq-7 ftii in or ripe rs7 rrad-,,•'d a or for -line swa!e, e czpr as necessar: [c Pro •ide = r»R: nuRt dr vewcr
crossing.
For cur »nd gL Cer pr iec s. RC CR rw J C:CC. Jtil in. Or alw al 110, Blip 3tivat. [SCa i0 .'nZ'::vi�r.L C rCli L
;va:-' %iu'Tiihe.T:
h H ��CY 0 9 0T�
ER
-z.,a'-z_'d�;ei Pe: rnsL txcvicz Sr.. ;rasa:^,.e".: U�tl LMV..
tii� C i; lot size-, ,;ar•r ii_ iiiCcstl? ..
and the ailcwabiz built open cr cuss loL.
4� �� l°� li 13 15 4.100 '5r-
nECEIVE
��r� p(os• aj� y�(o� 819� l2 �` I4 �(�tp .SF� JAN 2 6 1998 D
uu D E M
PROJ #

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. Division of Water Quality Jonathan B. Howes
Governor Water Quality Section Secretary
June 3, 1997
Mr. Phil Tripp, P.E.
Tripp Engineering
507 Market Street
Wilmington, NC 28401
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 910806 Modification
Pembroke Townhomes QLandfall
New Hanover County
Dear Mr. Tripp:
The Wilmington Regional Office received a Stonnwater Management Permit Application for
Pembroke Townhomes @Landfall on May 13, 1997. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the
stormwater review:
Provide a typical unit footprint with dimensions, concrete areas and wood deck areas noted.
2. Provide a road detail indicating the inverted crown, the pavement width, any curb and gutter,
and sidewalk.
3. A signed Operation and Maintenance Plan.
4. Delineate all wetlands on site, or note on the plans that none exist.
5. Please note the flood pool elevation on the forebay section detail.
6. Please note the locations of the drveways and sidewalks to each unit, if not already included
in the pavement total. If included in the 26,601 sf of pavement, please indicate the allowed
width of driveway and list the driveway lengths used for each unit.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
June 3, 1997
Stormwater Project No. SW8 910806 Modification
7. Please add a note to the plans that all roof drains will be located such that they will be
collected by the pond, ie., to the street. You may need to provide rear lot swales to collect
ninoff and direct it to the pond.
8. Is there any offsite drainage from Pembroke Jones Drive into the pond?
9. Will the lots be sold individually, or just the homes themselves? Attachment A is required
with the BUA per lot if the former is true.
10. The orifice size is too large. When using 2 days in the orifice equation, the size calculated
is already as big as it can be. Rounding up only causes the drawdown time to be too fast to
meet the design requirements. Please revise the calculations and pond details.
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 July 3, 1997, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you 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\910806.JUN
cc: Linda Lewis
Central Files
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity AT motive Action Employer

Permit No. ::,J6 9303f/
ryo he prm ided br DII'O/
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: POM b-Oke I OWnhonte5 Ph. 3, ( The Me WA
Contact Person: _Lee F. CoW 12ef- Phone Number: f 9/0) 2567 - rj7O4-
For projects with multiple basins, specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
ft. hcv—
f 6o ft. HbL
/9. 4- ft. H-1z.
areas
Permanent Pool Surface Area 3, '35& sq. ft.
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Fbrebay Volume
Other parameters
SA/DA 1
Diameter of Orifice
Design Rainfall
Design TSS Removal '-
FormSWU-102 Rev3.99
ac.
EZ, BIo ae F+Z
NIA cu. ft.
10,4015 cu. ft.
- P14 cu. ft.
.(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
(combined volume of main basin and forebay)
(volume detained above the permanent pool)
(approximately 20% of total volute)
1, 39 Yo (surface area to drainage area ratio front DWO table)
1,25 in. (2 to 5 day temporary pool draw -down required)
in.
% (minimum 85% required)
Pace 1 of 4

Footnotes:
When using the Division SA/DA tables. the correct SAlDA ratio for permanent pool sizing should be computed based upon the
actual impervious %and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
'- In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to pr ovide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
I1. 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
✓ a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
I� ✓ 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.
'k!_ 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 greaterthan 3:1
g. The basin side slopes above the permanent pool are no steeper than 3:1.
It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevationds specified.
✓ j. A trash rack or similar device is provided for both the overflow and orifice.
4A k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
.1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use.as;a wet detention basin.
r✓ m..Amechanism:is specified which will drain the basin for maintenance or an emergency.--
.111. -VET 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 does not
This system (check one) 0 does Nunes not
incorporate.a vegetated filter at the outlet.
incorporate pretreatment other than.a forebay.
FormSWU-102 Rev.3.99 Page 2of4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, 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 5,25 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2 �5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation I(P
Sediment Re valEl. /375. %V2_%
10,75-------------Sediment Removal ElevationBonomEle ation1.3 ----------------------------- -------
Bottom Elevation _C
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.
Fonn SWU-102 Rev 3.99 Pace 3 of

7. All components of the wet detention basin system shall be maintained in good working order.
1 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
Address:
Phone:
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.
I,
County of
a Notary Public for the State of
do hereby certify that
personally appeared before me this day of
execution of the forgoing wet detention basin maintenance requirements.
SEAL
My commission expires
SiGnafll; e
Form SWU-102 Rev399 _ Page of
, and acknowledge the due
Witness my hand and official seal,

DIVISION OF WATER QUALITY TE 9703
NORTH CAROLINA STORDIWATER MANAGEMENT PERMIT APPLICATION
I. GENERAL INFORMATION
(Please print clearly or type)
1. Project Name Pembroke Townhomes
2. Location, directions to project (include County, Address, State Road) Attach map. New Haonve
off of Eastwood Road
3. Owner's Name Gulf, Worsley, & Cowper, LLC Phone [phone]
4. Owner's Mailing Address 5315 South College Road
City Wilmington State NC Zip 28412
5. Nearest Receiving Stream Unnamed tributary of Motts Creek Class SC_
6.Projectdescription 15 single-family residential townhomes with paved access and concrete
parking.
II. PERMIT INFORMATION
I. Permit No. (rnLefilledinbyDWQ) Slao9�lbto, bL mna
2. Application Date May 5, 1997
3. Permit Type:` _New
Feeenclosed$ 385.00
Renewal f -)tM6dification(exis[ibgPermiENo.) 910806
4. Project Type: _Low Density X" _Defenti6-0 Infiltration_Redevelop_General_Alter_Offsite
5. Other State/Federal Permits/Approvals Required (Check appropriate blan.ls)
CAMA Major Sedimentation/Erosion Control g 404 Permit
III. BUILT UPON AREA (Please see NCAC 2H. 1005 that . /007 for applicable density limier)
Drainaee Drainaee Breakdown of Impervious Area
Basin Basin (Please indicate below the design impervious area)
Classification SC Buildings 44,175 SF
Existing Built -upon Area N/A Streets 26,601 SF
Proposed Built -upon Area 70,776,SF Parking/SW
Total Project Area 209,088 SF Other
% Built -upon Area 35%
IV. STORMWATER TREATMENT (Describe how the runoff will he treated)
Detention Pond
Totals 70,776 SF

Pembroke Townhomes, Phase III (aka The Mews) @Landfall
New Hanover County
Stormwater Proiect No. SW8 98031 1
Designer's Certification
RECEIVED
OCT 2 6 2000
DWQ
PROJ #
I, Phillip G. Tripp as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/week+ydfujkirne) the construction
of the project,
Pembroke Townhomes, Phase III (aka The Mews)
for Gulf, Worsley & Cowper, LLC (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.
Required Items to be checked for this certification to be considered complete are on page 2 of this form.
Noted deviations from approved plans and specifications:
Signature
Reaistratit
Date 10/24/00
cc: NCDENR DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector
SEAL
CAR p��y,
�:: FESS/p. 9 •
a� SEAL y9,=
17374 Ja
y'•.F Q.ra
'?GINE'�Q .
GR E:0�

TRIPP ENGINEERING, P.C.
507 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • Fax: [phone]
JAN 2 6 1998
January 26, 1998
NCDEHNR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Pembroke Townhouses
New Hanover County, NC
SW8 910806 Modification
TE 97003
Dear Linda:
We enclose two (2) sets of plans. In regards to your January 8, 1998
correspondence, we offer the following:
1. We previously included driveway areas within our pavement calculations.
We are revising our submittal to better reflect your calculations. Lots No. 1,
2, 4, 7, 10, 11, 13 and 15 with side entry garages will be allowed 4,700 sq. ft.
of impervious area. Lots No. 3, 5, 6, 8, 9, 12 and 14 with front entry garages
will be allowed 4,600 sq. ft. of impervious area. We enclose a revised
attachment "A" to reflect this.
2. We enclose revised pond calculations as per above revision.
3. We enclose a revised front sheet of the application as per above revision.
Please review for approval and contact us with questions or comments. Thank
you.
Sincerely,
Tripp Engineering, P.C.
Phillip G. Tripp, P.E.
Enc.

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
.James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
Mr. Phil Tripp, P.E.
Tripp Engineering
507 Chestnut Street
Wilmington, NC 28401
Subject:
Dear Mr. Tripp:
NCDENR
NORTH CAROUNA DEPARTMENT OF
ENVIRONMENT AND NATURAL RE50URGE5
January 8, 1998
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 910806 Modification
Pembroke Towmhomes
New Hanover County
The Wilmington Regional Office received previously requested information for the Stormwater
Management Permit Application for Pembroke Towmhomes on November 10, 1997. A preliminary review
of that information has determined that the application is not complete. The following information is needed
to continue the stormwater review:
Using the numbers provided on the footprint and scaling, the building sizes alone will exceed
the 3,328 maximum per lot as accounted for in the calculations and on Attachment A. Please
check the actual building area again. I get 3,362 square feet for the homes with street facing
garages and 3,441 square feet for the homes with side entry garages. This total is building
only. Without additional dimensions, these totals are close estimates. When you add in the
driveway and sidewalk, the maximum BUA per lot is 4,422 square feet and 4,509 square feet,
respectively, much larger than the 3,328 allotted. You may elect to either revise the
application to account for the maximums as I have indicated, or you may provide a listing on
Attachment A for each lot, based on the type of building and the driveway length, or you may
reduce the building size so that the total of building, driveway, and sidewalk is 3,328 square
feet for each lot. Remember, the BUA per lot as listed on Attachment A must include all the
impervious area that may be constructed on the lot and the right-of-way between the pavement
and the lot line, not just the building.
Revised pond calculations accounting for the increased impervious area, if needed based on
the option chosen above.
A revised application, if needed, based on the option chosen above.
127 North Cardinal Dr., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

Mr. Tripp
January 8, 1998
Stormwater Project No
SW8 910806 Modification
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 February 8, 1998, or the application will
be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you 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\910806.JAN
cc: Linda Lewis
Central Files .
127 North Cardinal Dr., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

0
November 10, 1997
TRIPP ENGINEERING, P.C.
507 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • Fax: [phone]
NCDEHNR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Pembroke Townhomes at Landfall
New Hanover County, NC
SW8 910806 Modification
TE 97003
Dear Linda:
�'i� �'
I' �TCN
D
E C E I V E
NOV 101997 D
D E M
PROJri
We enclose two (2) sets of revised plans and sealed calculations. In -regards to.your
correspondence dated June 3, 1997 we offer the following:
1. We have provided a typical unit footprint.
2. We have provided a road detail.
3. We have provided a signed Operation and Maintenance Plan.
4. We have noted that there are no wetlands on this site (Note 4).
5. We have provided flood -pool elevation on the forebay section detail.
6. We have provided the locations of driveways and sidewalks to each unit. The pavement total
does include the driveways and walks; therefore; we have indicated the allowed width of
driveways and driveways lengths for each unit.
7. We have noted on the plan that all roof drainage shall be directed to the pond (Note 3). We
have also noted on the plan that all lots shall be graded to drain from the rear toward the street
to direct runoff into the pond (Note 2).
8. There is no off -site drainage from Pembroke Jones Drive into the pond. Pembroke Jones
Drive drains into adjacent Cypress Pond.
9. The lots will be sold individually. We have provided Attachment "A".
10. We have revised the calculations and pond detail to show smaller orifice size.
Please review for approval and contact us with questions or comments. Thank you.
Sincerely,
Tripp Engineering, P.C.
S. Lance Strawn
Enc.

11/07/1997 16:46 9107635631
TRIPP ENGINEERING
PAGE 01
November 7, 1997
TRIPP ENGINEERING, P.C.
507 Chcstnur Street
Wilmington, North Carolina 28401
Phone: [phone] • Fax: [phone]
NCDEfM
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3945
Sent VIA transmittal [phone]
Attn: Ms. Linda Lewis
Dear Linda
We are in receipt of your November 7, 1997 correspondence -and offer the following.
960617 Lot 19 Notthchase: Check and completed submittal will be hand delivered Mciiday,
November 10, I.M.
970721 Wilmington Marine Center: Wo have clarified all comments except No. 9, soils report
Field work was completed on Monday of this week and we expect the report today. We
will forward completed submittal on Monday, November 10, 1997.
970828 Furr Retail: We re -submitted to your office on November '4, 1997.
970861 Teat Briar Please retum this package. We are considering major chanass.and re -
submittal oan occur later.
-9 f0806(Mod.) m okeat Landfall: We have been delayed awaiting. architect's floor plans. Wanow
nave sufficient information. Completed submittal will be hand delivered on Monday,
November 10, 1997.
961216 Middle Point: We re -submitted to your office on October 27, 1997.
Please review for approval -and -contact us with quactions or comatcnts. Tbank you.
Tripp Engineering
Phillip G. Tripp
Enc.

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
November 7, 1997
Mr. Phil Tripp, P.E.
Tripp Engineering
507 Chestnut Street
Wilmington, NC 28401
4::
NCDENR
ENVIRONMENT AND NATURAL RESOURCES
Subject: Project Returns
Stormwater Project Nos. SW8 970617, SW8
970721, SW8 970828, SW8 970861, SW8
910806 Mod, and SW8 961216.
New Hanover County
Dear Mr. Tripp:
The following projects are pending and no response has been received to this Office's requests for
additional information:
970617
Lot 19 NorthChase
9/8/97
970721
Wilmington Marine Center S/D
10/2/97
970828
Furr Retail
9/9/97
970861
Teal Briar S/D
9/22/97
910806 Mo
Pembroke @a Landfall
6/3/97
99 M-6
Middle Point S/D
8/14/97
Please inform this Office in writing immediately as to the status of each project. All of these projects
will be returned on November 10, 1997, if this information is not received today. The return of a project will
necessitate the resubmittal of all items, including the application fee.
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\LETTERS\RETURN.NOV
cc: Linda Lewis
127 North Cardinal Dr., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10 % post -consumer paper

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507 Chestnut Street
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41 TRIPP ENGINEERING, P.0
507 Chestnut Street RECEIVE
Wilmington, North Carolina 28401 ��y !� a997
Phone: [phone] • Fax: [phone]
May 9, 1997
NCDEHNR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Pembroke Townhomes
TE No. 9703
Dear Linda:
Enclosed please find two (2) sets of plans, two (2) sets of
sealed calculations, one signed application form, and a
check to cover the application fee.
Please review for approval and contact us with any questions
or comments. Thank you.
S' cerely,
P i 1 p G. Tr tp, P.E.
Enclosures
PGT/rf