SW8990732_HISTORICAL FILE_20000517

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 G�10-132
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
® HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2oopoSl�1
YYYYMMDD

,' Stati of North Carolina
Deplartment of Environment
and Natural Resources
Wilmington Regional Office
James B Hunt, Jr, Governor
Bill Holman, Secretary
Division of Water Quality
Mr Terry Turner, President
Saturn Development
3901 Oleander Drive
Wilmington, NC 28403
Dear Mr Turner
INIMNAA
NCDENR
NoR CAROLINA DEPARTMENT of
ENVIRONMENT AND 14 UR RESOURCES
May 17, 2000
Subject Permit No SW8 990732 Modification
Brewster Place Phase II
High Density Subdivision Stormwater Project
New Hanover County
The Wilmington Regional Office received a complete modification to the Stormwater Management Permit
Application for Brewster Place Phase II on April 28, 2000 Staff review of the plans and specifications has
determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC
2H 1000 We are forwarding Permit No SW8 990732 Modification, dated May 17, 2000, for the construction of
the project, Brewster Place Phase II
This permit shall be effective from the date of issuance until May 17, 2010, and shall be subject to the conditions
and limitations as specified therein Please pay special attention to the Operation and Maintenance requirements
inthis permit Failure to establish an adequate system for operation and maintenance of the stormwater management
system will result in future compliance problems
If any parts, requirements, or limitations contamed in this permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days following receipt of this permit This request must
be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands
are made this permit shall be final and binding
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me
at [phone]
Sincerel ,
Rick Sluver
Water Quality Regional Supervisor
RSS/ arl S \WQS\STORMWAT\PERMIT\990732 MAY
cc Howard Resnick, 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 990732 Modification
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Saturn Development
Brewster Place Phase 11
New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC
2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water Quality
and considered a part of this permit
This permit shall be effective from the date of issuance until May 17, 2010 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 Tlus 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 107 lots, each allowed 4,000 square
feet of built -upon area
Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit
Pond 1 will utilize the existing wetland as a forebay Runoff within the drainage area of Pond 1 must first
be directed into the wetland prior to entering the pond

✓ State Stormwater Management Systems
Permit No SW8 990732 Modification
DIVISION OF WATER QUALITY
PROJECT DATA SHEET
Project Name
Brewster Place Phase II
Permit Number
SW8 990732 Modification
Location
New Hanover County
Applicant
Mr Terry Turner, President
Mailing Address
Saturn Development
3901 Oleander Drive
Wilmington, NC 28403
Application Date
April 28, 2000
Name of Receiving Stream / Index #
Mott Creek / (CFR 18-82)
Classification of Water Body
"C Sw"
Pond Number
POND 1 POND 2
Design Storm
V V
Pond Depth, feet
75 75
Permanent Pool Elevation, FMSL
8 7
Drainage Area, acres
2054 1239
Total Impervious Surfaces, ft2
338,782 240,780
107 lots at 4,000 ft2
65 lots/260,000 42 lots/168,000
Roads/Parking, ft2
78,782 72,780
Other, ft2
Offsite Area entering Pond, ft2
None, per Engineer
Required Surface Area, ft2
9,269 6,933
Provided Surface Area, ft2
50,676 29,788
Required Storage Volume, ft'
37,498 24,643
Provided Storage Volume, W
52,800 32,460
Temporary Storage Elevation, FMSL
9 8
Controlling Orifice
3"1) pipe 2 5" 4) pipe
3

State Stormwater Management Sysfems
Permit No SW8 990732 Modification
II. SCHEDULE OF COMPLIANCE
No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (such as swales) shown
on the approved plans as part of the stormwater management system without submitting a revision to the
permit and receiving approval from the Division
2 The permittee is responsible for verifying that the proposed built -upon area for the entire lot, including
driveways and sidewalks, does not exceed the allowable built -upon area Once the lot transfer is complete,
the built -upon area may not be revised without approval from the Division of Water Quality, and
responsibility for meeting the built -upon area limit is transferred to the individual property owner
If an Architectural Review Committee (ARC) is required to review plans for compliance with the BUA
limit, the plans reviewed must include outbuildings, sidewalks and driveways Any approvals given by the
ARC do not relieve the homeowner of the responsibility to maintain compliance with the permitted BUA
limit
4 The following items will require a modification to the permit
Any revision to the approved plans, regardless of size
Project name change
Transfer of ownership
Redesign or addition to the approved amount of built -upon area
Further subdivision, acquisition, or sale of the project area The project area is defined as all property
owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought
Filling in, altering, or piping of any vegetative conveyance shown on the approved plan
The Director may determine that other revisions to the project should require a modification to the permit
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 permttee shall submit a written
time schedule to the Director for modifying the site to meet mimmum requirements The permittee shall
provide copies of revised plans and certification in writing to the Director that the changes have been made
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
During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired
immediately
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 will not be allowed in the stormwater treatment system
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
C!

State Stormwater Management Systems
Permit No SW8 990732 Modification
12 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual
13 Prior to transfer of the permit, the pond must be inspected by DWQ personnel, and determined to be in
compliance with all permit conditions Any items not in compliance must be repaired or replaced to design
condition prior to the transfer Records of maintenance activities performed to date will be required
14 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, onfice device and catch basins and piping
g Access to the outlet structure must be available at all times
15 Records of maintenance activities must be kept and made available upon request to authorized personnel
ofDWQ The records will indicate the date, activity, name of person performing the work and what actions
were taken
16 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
"The maximum built -upon area per lot is 4,000 square feet This allotted amount includes any built -
upon area constructed within the lot property boundaries, and that portion of the nght-of-way
between the front lot line and the edge of the pavement Built upon area includes, but is not limited
to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina, driveways and parking areas, but
does not include raised, open wood decking, or the water surface of swimming pools "
b "The covenants pertaining to stormwater regulations may not be changed or deleted without
concurrence of the State "
"Alteration of the drainage as shown on the approved plan may not take place without the
concurrence of the State "
d "All runoff on the lot must dram into the permitted system This may be accomplished through
providing roof drain gutters which dram to the street, grading the lot to drain toward the street, or
grading perimeter swales and directing them into the pond or street Lots that naturally dram into the
system are not required to provide these measures "
17 A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date of
recording the plat, and prior to selling lots The recorded copy must bear the signature of the Permittee, the
deed book number and page, and stamp/signature of the Register of Deeds

State Stormwater Management Systems
Permit No SW8 990732 Modification
18 Tlus permit shall become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data
19 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a mimmum
of ten years from the date of the completion of construction
20 Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate,
coquina, driveways, and parking areas, but does not include raised, open wood decking, or the water surface
of swimming pools
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 D WQ 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 percussion to staff of the D WQ to access the property for the purposes of inspecting the
stormwater facilities during normal business hours
7 The permittee shall notify the Division of any mailing address changes within 30 days
Permit issued this the 17th day of May, 2000
NORTH CA� ROLLINA ENVIR�JONMENTAL MANAGEMENT COMMISSION
C�Y�Iw%R�h1C �Lr/
Kerr T Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990732 Modification
0

State Stormwater Management Systems
Permit No SW8 990732 Modification
Brewster Place Phase II Page 1 of 2
Stormwater Permit No SW8 990732 Modification
New Hanover County
Designer's Certification
I, , as a duly registered inthe State of North Carolina, having been authorized to observe (penodically/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
The checklist of items on page 2 of this form are a part of this Certification
Noted deviations from approved plans and specifications
Signature
Registration Number
IVIM
SEAL
7

State Stormwater Management Systems
Permit No SW8 990732 Modification
Certification Requirements Page 2 of 2
The drainage area to the system contains apprommareh the permitted acreage
2 The drainage area to the system contains no more than the permitted amount of built -upon area -
All the built -upon area associated with the project is graded such that the runoff drains to the system
4 The outlet/bypass structure elevations are per the approved plan
5 The outlet structure is located per the approN ed plans -
Trash rack is provided on the outlet/bypass structure-
7 All slopes are grassed with permanent vegetation.
8 Vegetated slopes are no steeper than 3 1
9 The inlets are located per the approved plans and do riot caxise short-circuiting of the s}-stem.
10 The permitted amounts of surface area and/or %oh>me have bean provided
11 Required drawdown devices are correctly sized per -_ie aparrn-ed plans
12 All required design depths are provided
13 All required parts of the system are provided- such z: a iegg shelf. a forebay, and the -*ezerz:e i Ea=
14 The overall dimensions of the system, as shown on a aoortned plans. are provided.
cc NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspector

Received
Fee Paid
mDate
Permit Nu3-�0-�4�D
E
G 9
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 Applicants name (specify the name of the corporation, individual, etc who owns the project)
4�-�arn Uev"/0nw,nn-1-
2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance)
Tern. Tnrn, r Pi �c 'd ent
3 Mailing Address for person hsted in item 2 above
WE
City_(ii./m/nnf7jn _ — State NI—' Zap Z9443
Telephone Number ( 910 ) 304—_ 4006 -
4 Project Name (subdivision, facility, or establishment name - should be consistent with project name -on -
plans, specifications, letters, operation and maintenance agreements, etc) -
�rLui sal' pier cp Phofe % o -
5 Location of Project (street address)
Lane
City County 'Alew 111"OVel-
6 Directions to project (from nearest major intersection)
Latitude 34- e 13 44 - Longitude 77 SS¢. /¢, 97 „ of project
Contact person who can answer questions about the project
NameTe/Le Tunnel' Telephone Number 39,f—¢00b1
II PERMIT INFORMATION
1 Specify whether project is (check one) New Renewal Modification
Form SWU-101 Version 3 99 Page I of 4

2 If this application is being subrrutted as the result of a renewal or modification to an existing permit, list the `
existing permit number -5r ig ,99073 Z and its issue date (if known) 14/ 1/99
u
3 Specify the type of project (check one)
_Low Density _,K_I-hgh Density _Redevelop _General Permit _Other
4 Additional Project Requirements (check applicable blanks)
CAMA Major _,�( Sedunentation/Erosion Control _404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748'
III PROJECT INFORMATION
1 In the space provided below, sur marine how stormwater will be treated Also attach a detailed narrative
(one to two pages) describing stormwater management for the project
5;lorMwatPr re( 'ir afPd by �r o ( ) We%eaj-lo��
2 Stormwater runoff from this project drains to the Ana FeAr- River basin
3 Total Project Area 3Z , 9 3acres
5 How many drainage areas does the project have? Z
4 Project Built Upon Area - Q
6 Complete the following information for each drainage area If there are more than two dramage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below
BBginAi rmmati
r= «ate
s: � " Dr�e P;rna1 - s�
Receiving Stream Name
r
Cr
Receiving Stream Class
Drainage Area -
7-0, 54-
Existing Impervious* Area
-
Proposed Im ervious`Area
1 7 7g' scares
5, S 3 acres
Im ervious* Area (total) -1
3 e '%
1 4S42'_
ous' Surface Aiea tl
fiDi_fria RA ea Y .
x 's,-,d..�.x*ro s�,rw� ��a
)k�uLii2
_
On -site Buildings
5,37 acres
636' as rEs
On -site Streets
/, gl acrES
1. 6-7 acres
On -site Parking
On -site Sidewalks
Other on -site
Off -site
_
Total -7, 78 ae res
j Total S. 5 3 acres
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc
Form SWU-101 Version 3 99 Paec 2 of 4

7 How was the off -site impervious area listed above derived?
IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a
table listing each lot number, size and the allowable -built -upon area for each lot must be provided as an
attachment.
I Thefollowing covenants are intended to ensure ongoing compliance with state stormwater management permit
number s6V Bgc?Ug3'Z as issued by the Division of Water Quality These covenants may
not be changed or deleted without the consent of the State
2 No more than 4 000 square feet of any lot shall be covered by structures or impervious materials
Imperowus materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools
3 Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings
4 Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction
5 All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and perforinance of the system as permitted -
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and
persons claiming under them, that they will run with the land, that the required covenants cannot -be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot
V SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submutted for
each BMP specified for this project. Contact the Stomiwater and General Permits Unit at [phone] for the
status and availabilityof these forms
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 Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3 99 Page 3 of 4

VI SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below The complete application package should be
submitted to the appropriate DWQ Regional Office
Please indicate that you have provided the following required information by mitialmg in the space
provided next to each item
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean lugh water hne
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, oollection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
_ - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated -
- Vegetated buffers (where required)
VII -AGENT AUTHORIZATION -
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section
Designated agent (individual or firm) Ain o yr r / /P sin vt �P.f ✓% �eS,�P A,
Mailing Address
City l,( i /m L . IVA State NG Zip Z94-6 I
Phone ( 910 B 00 Z Fax. ( 9/0 ) 34.3 — 99 4-
- VIM APPLICANTS CERTIFICATION -
I, (print or type name of person listed in General Information, item 2) Terry Turner
certify that the information included on this permit application form is, to thiS best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H 1000 / /
Signature
Date V-q l oo
Form SWU-101 Version 3 99 Page 4 of 4

Permit No SW $ gC(ol32 Nvp
(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 subrmttal 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 INFORDIATION
Project Name Brew s--el place PA i <ie Two
Contact Person -re, r /`)e Turne/- Phone Number (910 1 39t -4(900
For projects with multiple basins, specify which basin this worksheet applies to /
-elevations
Basin Bottom Elevation 0,5 ft (floor of the basin)
Permanent Pool Elevation 9,0 _ f[ __ _ (elevation of the orifice)
Temporary Pool Elevation 9,0 - ft- ' - (elevation of the discharge structure over
areas
Permanent Pool Surface Area 50, 4 76 sq ft (water surface area at the orifice elevation)
Drainage Area Z 0, 5¢ ac - (on -site and off -sue drainage to the basin)
Impervious Area 77 ac_ (on_site and off -site drainage to the basin) _
volumes
_ Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3 99
z44 99f3 cu ft_ (combined volume of main basin and forebay) _ -
5z, ROO cu ft. (volume detained above the permanent pool)
4 cu ft (approximately 20% of total volume)
k ex, sh'o jc we-UZ174 used a s prclre2fine17t
�,W_9 (surface area to drainage area ratio from DWQ table)
3,0 in (2 to 5 day temporary pool draw -down required)
1,0 in
90 % (minimum 85% required)
Page I of 4

Footnotes
t When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non-
standard table entries
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal
II REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stoimwater 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 Pernut
Application Form, the agent may initial below If a requirement has not been met, attach justification
Applicants Initials
Ah>C a
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
b
The forebay volume is approximately equal-to-20% of the basin volume
c
The temporary pool controls runoff from the design storm event
d-
The temporary pool draws down in 2 to 5 days
Ale _
If required, a 30-foot vegetative filter is provided at the -outlet (include non -erosive flow
calculations) - _
f
_a
Ttie basin length to width ratio is greater than 3 1 _
FL,e. 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)
µiP_. - 1
_vegetative cover above the permanent pool elevation is specified
A trash rack or similar device is provided for both the overflow and orifice
k
A recorded drainage easement is provided for each basin including access to nearest right-
- _
of -way.
_Mte - 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.
(�1' 4f- m. A mechanism is specified which will dram the basin for maintenance or an emergency
PorfahlC!_ PNm1p
HI. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) 0 does Xdoes not incorporate a vegetated filter at the outlet.
This system (check one) does 0 does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows
\1 After every significant runoff producing rainfall event and at least monthly
a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
b Check and clear the onfice 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, nprap, 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 diagiam 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-2z feet in the main pond, the sediment shall beremoved _
When the permanent pool depth reads feet in the forebay, the sediment shall -be removed-
-
= BASIN DIAGRAM-
- _ (fill in the blanks) -
Permanent Pool Elevation g O
Sediment Re oval El -- 75
-_----_----- Sediment Removal Elevation Z . 3 7S _ 75% -
Bottom Ele pit %---------------------------------------------125%
------
Bottom Elevation O�
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
( I through the emergency drain shall be mimmized to the maximum extent practical
,i
Form SWU-102 Rev 3 99 Page 3 of 4 _

r
7 All components of the wet detention basin system shall be maintained in good working order
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party
Print name I LO f rV
Title Pre-4� S f-u rn De- ✓e �o a
Address 3901 Olea;ide - OdtI !pawn, , A-- 7_84-03
Phone
Signature /(fA.LGi l u441iy
Date 3/24 / 40
�r
Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president
a Notary Public for the State of % 1 t I �OW"
,
County -of kl11,Y1C�W do hereby certify that��ri U ✓1�Q'
personally appeared before me this day of _}rn[} 1(= - ,and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements- Witness my hand and official seal,
Q�OECCA M /`,
,.�pTA,q`
y9 BL�<+_
R C -
SEAL
KJJ� -,Uct Tyl
, My commission expires O 1- �-M,
Form SWU-102 Rev 3 99 Page 4 of 4

Permit No 5608 990732
(to be provided bi DIV&
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 inay be photocopied foi it,e 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 13rejsfer Pla« PA4se T,vo
Contact Person _ T�i-- Tarn& r Phone Number ( 9 io 1 39.5-- 4-60
For projects with multiple basins, specify which basin this worksheet applies to - Z
elevations = - -
Basin Bottom Elevation - —0,5 ft
Permanent Pool Elevation - 7, 0 ft
Temporary Pool Elevation - B, O ft
(floor of the basin) -_
(elevation of the orifice)
(elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area z9 7e8 sq ft (water surface area at the onfice elevation)
Drainage Area - -1 z ,39 - ac (on -site and off -site drainage to the basin) -
Impervious Area - 5 53 ac (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume_
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
Form SWU-102 Rev 3 99
63 cu ft (combined volume of main basin and forebay)
37-, ¢6/'0 cu ft (volume detained above the permanent pool)
Z 4,053 cu ft (approximately 20% of total volume)
/, E9 (surface area to drainage area ratio from DWQ table)
Z .5 in (2 to 5 day temporary pool draw -down required)
/ O in
90 % (minimum 85% required)
Page I of 4

Footnotes
t When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual Impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non-
standard table enures
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal
II REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N C Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section 15 A NCAC 2H 1008
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below If a requirement has not been met, attach justification
Applicants Initials
a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet) _
b The forebay volume is approximately equal to 20110 of the basin volume -
Ka c The temporary pool controls runoff from the design storm event -
it& d- The temporary pool draws down in 2 to 5 days
e If required, a 30-foot vegetative -filter is provided at the -outlet (include non -erosive flow-- -
calculations)
f The basin length to width ratio is greater'than 3 1
F!, 2 g The basin side slopes above the permanent pool are no steeper than 3 1
1�.12 h A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail)
i Vegetative cover above the permanent pool elevation is specified
-I A trash rack or sinular device is provided for both the overflow and onfice _
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
in//. --A/ mechanism is specified which will dram the basin for maintenance or an emergency
r T�-5 ' PO1e t 4.np
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) 0 does does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3 99 Page 2 of 4

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 onfice 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, nprap, etc ) quarterly to
maintain proper functioning
4 Remove accumulated sediment from the wet detention basin system serm-annually or when depth is
reduced to 75% of the onginal 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 feet in the main pond, the sediment shall be removed _
5 (o
When the permanent pool depth reads feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 7, O -
oval El /• 375-- 75----- Sediment Removal Elevation 37 5F25%-
SedunentReBottom Ele Ltion �S % --------------------------------------------Bottom Elevation
FOREBAY
MAIN POND
5 Remove cattails and other indigenous wetland plants when they cover 50015 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
( 1 through the emergency drain shall be rmnirmzed to the maximum extent practical.
i
Foim SWU-102 Rev 3 99 _ Page 3 of 4 _
c a Ali'

/
7 All components of the wet detention basin system shall be maintained in good working order
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above I agree to notify DWQ of any problems with the system or pnor to any
changes to the system or responsible party
Print name l erw -1 u rrl& r _-
Title Pre!5;dc"4, srtturh ��relo�,v�Ni
Address 3001 D/eaAW&-i- A/c-- Zg'443
Phone
Signature
Date
t4/m 1✓
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, rCG' I V a Notary Public for the State of Norvo, CM IIN,
County of 1 do hereby certify that �i� Ilk ly ruj,/
personally appeared before me this a� day of main. n- 2CQD--, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements _Witness my hand and official seal,
-
,p TA,9�
JZ - U_
ti OUBUG- r
9,J,O�FR ppU��
SEAL
My commission expires
FormSWU-102 Rev 3 99 Page 4 of 4

Hanover Design Services, P.A.
Land Surveyors, Engineers, Land Planners
Apnl 27, 2000
Ms Linda Lewis
Environmental Engineer
N C Department of Environment
And Natural Resources
Division of Water Quality
127 Cardinal Drive Extension
Wdnungton, NC 28405
Re Modified Stormwater Management Permit
For Brewster Place Phase Two
NCDENR/DWQ Permit No SW8 990732
New Hanover County
HDS Project No 3888
Dear Ms Lewis
RT=r--T :rED
APR
'' 2 8, 2000
BY,
Enclosed please find the following items for the referenced project
original and one (1) copy of the revised page 1 of the Wet Detention Basin
Supplement for Drainage Basin 2
one (1) copy of the revised Stormwater Management Calculations
two (2) copies of sheets 1 through 4, the revised "Erosion and Sediment
Control and Water Quality Plan'
Please note that the Stormwater Management Calculations have been modified to include
the pre and post -development flow rates and pond elevations for the 50-year storm event
to satisfy City of Wilnungton Stormwater regulations The calculations and all other
enclosed items were also revised per your comments in your 4/27/00 fax transnuttal
We hope that this additional information is sufficient for compliance with NCDENR
stormwater regulations Please call if you require any additional information
Very truly yours,
Howard Resnik, PE
Encl As noted above
cc Terry Turner, Saturn Development
319 Walnut Street Wilmington, NC 28401 [phone]

STORMWATER MANAGEMENT CALCULATIONS
And Walei Quality Calcula(ions
For
BREWSTER PLACE PHASE TWO
— PREPARED FOR
Saturn Development
3901 Oleander Drive
- Wilmington, NC 28403
S4U" R � � n ,�TE R
gZECEIVEI)
BAR
APR 2 8 2000 - N.»...oi�y'',,
DwQ Prepared by- z �4'� EAL
1�
PROd # V (lU 32 /%/ ✓ 025W i =
Howard Resnik, PE 'sypH�IN��e'�f�` `
Hanover Design Services, PA
319 Walnut Street
Wilmington, NC 28401 R�`se� ¢ill boo
Re✓i5ec( 4/z7/00

BREWSTER PLACE PHASE TWO CALCULATIONS FOR DWQ:
POND 1:
Water Quality Considerations
Total area draining to pond 894,756 sf (20 54 acres)
Paved road area (including curbing) 78,782 sf (1 81 acres)
Built upon area per lot = 4000 sf/lot x 65 lots = 260,000 sf (5 97 acres)
Total impervious surface area 338,782 sf (7.78 acres)
Total non -impervious or "green" area 555,974 sf (12 76 acres)
Required Surface Area -
(778x098+1276x02)/2054=0495or49.5%
From 90% TSS Removal Chart, at depth of 7 5' and 49 5% impervious surface, _
- - SA/DA = 1 49% - - -
Minimum surface area = 0 0149-x 894,756 = 13,332 sf
Surface area provided at elevation 8 0 = 50,676 if
Required 1" Storage Volume
Minimum 1" storage volume = (7 78 x 0 98 + 12 76 x 0 2) x 1/12 = 0.85 acre-ft or 37,121 cf
X' storage volume provided at elevation 8 7 +/- _, 37,121 cf
Storage provided between normal pool and outlet structure weir cut = 52,800 cf -
HANOVER DEgfrNi SEA111OES,piL
SI9 WALNUT 5„,,.E'
WMMINGTON NG 2M __

3" PVC Drawdown for Pond 1
1" storage elevation is approximately at elev 8 7
Orifice coefficient (C) = 0 6
Average head from I" storage to orifice (h) _ (8 70 — 8) / 2 =0 35'
3" pvc cross sectional area (A) = pi x r^2 = 3 14 x (3 / 12)^2 = 0 0491 SF
Acceleration due to gravity (g) = 32 2 ft/s^2
Q=CA(2gh)^1/2=06x00491x(2x322x035)^1/2=01399cfs
37,121 / 0 1399 = 265,406 seconds = 3.1 days
HANOVER DESIGN SERVICES, PA
319 WALNUT STREET
WILMINGTON NC 28401

POND 2:
Water Quality Considerations
Total area draining to pond
Paved road area (including curbing)
Built upon area per lot = 4000 sf/lot x 42 lots =
Total impervious surface area
Total non -impervious or "green" area
Required Surface Area
539,545 sf (12 39 acres)
72,780 sf (1 67 acres)
168,000 sf (3 86 acres)
240,780 sf (5.53 acres)
298,765 sf (6.86 acres)
(5 53 x 0 98 + 6 86 x 0 2) / 12 39 = 0 548 or 54 8%
From 90% TSS Removal Chart, at depth of 7 5' and 54 8% impervious_ surface,
SA/DA=-169%- -
Minimum surface area =- 0 0169 x 539,545 = 9,118 sf
Surface area provided at elevation 7 0 = 29 788 sf -- -
Required 1" Storage Volume
Minimum V storage volume = (5 53 x 0 98 + 6 86 x 0 2) x 1/12 = 0.57 acre-ft or 24,653 cf
1" storage volume provided at elevation 7 8 +/- = 24,653 cf
Storage provided between normal pool and outlet structure weir cut = 32,460 cf
Forebay Volume
Mmimum forebay volume = 20% of permanent pool volume
(see attached stage -storage table) -
Minimum forebay volume = 120,263 x 0 2 = 24,053 cf `
Forebay volume provided = 24,053 cf
MOVER OESIA8WCES PA
319 WALNUT STREET
WILMINGTON NO 2W __

' I t
2-1/2" PVC Drawdown for Pond 2
1" storage elevation is approximately at elev 7 8
Orifice coefficient (C) = 0 6
Average head from 1" storage to onfice (h) _ (7 8 — 7) / 2 =0 4'
2-1/2" pvc cross sectional area (A) = pi x r^2 = 3 14 x (2 5 / 12)^2 = 0 0341 SF
Acceleration due to gravity (g) = 32 2 ft/s^2
Q=CA(2gh)^1/2=06x00341 x(2x322x04)^1/2=01038cfs
24,653 / 0 1038 = 237,406 seconds = 2.7 days
n
HQ40VER DESIGN SERVICES, PA
319W=UT8'PT,EET
WILMINGMN NO bM

Soil Types
Abbreviation
Kr
Ly
On
Jo
Pm
Le
Type and Description
Kureb Sand, 1 to 8 percent slopes
Lynn Haven fine sand
Onslow loamy fine sand
Johnston soils
Pamlico muck
Leon sand
Hydrologic Group
A
B/D
B
D
D
B/D
HANOVER DESIGN SERVICES, PA
319 WALNUT STREET
WILMINGTON NC 28401

4
STORMWATER MANAGEMENT FOR NEW HANOVER COUNTY AND
CITY OF WILMINGTON
POND 1:
Pre -developed condition (see hydrograph summary and reports)
CN PRE = 66 (SCS), sods are B/D use B (SCS)
Area = 20 54 acres
Hydraulic length = 1850 ft
Basin slope = 1 19%
Qmax for pre-dev 2-yr storm = 15 0 cfs
Qmax for pre-dev 10-yr storm = 29 2 cfs
Qmax for pre-dev 50-yr storm = 43 8 cfs
Qmax for pre-dev 100-yr storm = 52 9 cfs
Post -developed routed condition (see hydrograph summary and reports)
-CN POST = 75 (SCS), sods are B/D use B-(SCS) _
Used composite CN
impervious surface = (7 8 acres) x (CN = 98) = 764
conservation area = (4 9 acres) x (CN = 55) = 270 _
_ grassed area = (7 8 acres) x (CN = 61) = 476
- _ 1,510/205=737
Used CN = 75
Area = 20 54 acres _ -
Hydraulic length = 1300 ft
Basin slope = 0 5%
Qmax for post-dev 2-yr storm = 2 0 cfs - _ -
_ Qmax for post-dev 10-yr storm = 19 1 cfs -
Qmax for post-dev 50-yr storm = 39 4 cfs (Max elev = 11 24)
_ - Qmax for post-dev 100-yr storm = 43 5 cfs - _ - -
HANOVER DESIGN SERVICES, PA
319 WALNUT STEEP
WILMINGTON NU 2&01

' � 4
POND 2:
Pre -developed condition (see hydrograph summary and reports)
CN PRE = 66 (SCS), sods are B/D use B (SCS)
Area = 12 39 acres
Hydraulic length = 850 ft
Basin slope = 3 21%
Qmax for pre-dev 2-yr storm = 18 2 cfs
Qmax for pre-dev 10-yr storm = 34 8 cfs
Qmax for pre-dev 50-yr storm = 52 1 cfs
Qmax for pre-dev 100-yr storm = 63 1 cfs
Post -developed routed condition (see hydrograph summary and reports)
CN POST = 85 (SCS), soils are B/D use B (SCS)
Area = 12 39 acres
Hydraulic length = 800 ft
Basin slope _= 0 75%
Qmax for post-dev 2-yr storm = 114 cfs
Qmax for post-dev 10-yr storm = 33 3 cfs
Qmax for post-dev 50-yr storm = 40 5 cfs (Max- elev =---10 29)
Qmax for post-dev 100-yr storm = 44 3 cfs - _ - "
HANOVER DESIGN SERVICES, PA
319 WALNUT S—IREEr
WILMINGTON NC 2M

/. I
-�
LY

I
iCl
Table 8.03b
Runoff Curve Numbers (CN)
Hydrologic Soil Group
A B C D
Land Use/Cover
Cultivated land
without conservation
72
with conservation
62
Pasture land
condition
68
Poor
air condition
49
good condition - - _
39
Meadow -
good condition
30
Wood or forest land
Thin stand -poor cover, no mulch
45
Good stand - good cover
25
Open spaces, lawns, parks, golf-dburses, cemeteries, etc.
good condition: -
grass cover on_75%
or more of lhe'area.
39
fairconMion: -
grass cover on 50
to 75% of the area
49
Commercial and business - -
areas (85% impervious)_ _ -.
89
Industrial districts
(720/. impervious)
81
Residential:' Development completed -and vegetation established
Average lot size Average % Impervious
1/8 acre or less 65
77
114 acre 38
61
1/3acre 30 -
57
1/2 acre 25
54
1 acre - - 20
51
2 acre - 15 -
47
Paved parking lots, roofs,
driveways, etc.
98
Streets and roads
paved with curbs and
storm sewers
98
gravel n -DENOTES LNS VSEO
76
din IN ce,nPof r7-E Posr-
72
Newly graded area PE✓E&VPMENr CA/ FOR
81
POND I ,
Residential: Development underway and no vegetation
Lot sizes of 1 /4 acre
88
Lot sizes of 12 acre
85
Lot sizes of 1 acre
82
Lot sizes of 2 acres
81
81
88
91
71
78
81
79
86
89
69
79
84
61
74
80
58 71 78
PRE -DE V Pl-DPMEN%
54 77 83
5 70 77 _
61 74 80
69 79 84 t '
92 - 94 - 95 - - -
88 91 93
Po:7- DEvELOPrrEN_i - - _
(PoNO z)
85 90 92
83 87
72 81 86
70 80 85
68 79 84
66 77 81
r98 98 98
98 98
5 89 91
82 87 89
89 93 95
93 95 97
91 94 96
90 93 95
89 92 94
'Curve numbers are computed assuming the runoff from the house and driveway is directed toward the street.
source: USDA-SCS
P.A.
8.03.10
R". 1293

DSPITi
3'
3.5'
4.0'
4
. 6.0'
6.5'
7.0'
7M5'
n
RA %
10%
.9
.8
.7
.6 .5
0
0
0
0
0
;.
20 %
1.7
1.3
1.2
1.1
1.0
.9
.8
.7
.6
.5
30 %
2.5
2.2
1.9
1.8
1.6
1.5
1.3
1.2
1.0
.9
40 %
3.4
3.0
2.6
2.4
2.1
1.9
1.6
1.4
1.1
1.0
50 %
4.2
3.7
3.3
3.0
2.7
2.4
2.1
1.8
1.5
1.3
60 %
5.0
4.5
3.8
3.5
3.2
2.9
2.6
2.3
2.0
1.6
70 %
6.0
5.2
4.5
4.1
3.7
3.1
2.9
2.5
2.1
1.8
80 %
6.8
6.0
5.2
4.7
4.Z
3.7
3.2
2.7
2.2
2.0
90 %
7.5
6.5
5.8
5.3
4.8
4.3
3.8
3.3
2.8
1.3
100 %
8.2
7.4
6.8
6.2
5.6
5.0
1 4.4
3.8
32
2.6
90%n TSS REMOVAL
NO VEGETATED FILTER REQUIRED
DEPTH
3'
3.5'
4.0'
4.5'
5.0'
5.5'
6.0
6.5'
7.0'
7.5'
11v1P %
10 %
1.3
1.0
.8
.7
.6
.5
.4
.3
.2
.1
20 %
2.4
2.0
1.8
1.7
1.5
1.4
1.2
1.0
.9
.6
30 %
3.5
3.0
2.7
2.5
2.2
1.9
1.6
1.3
1.1
.8
4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
r%4.5
5.6
5.0
4.3
3.9
3.5
3.1
2.7
2.3
1.9
1.5
7.0
6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
1.9
70 %
8.1
7.0
6.0
5.5
5.0
4.5
3.9
2.9
2.3
80 %
9.4
8.0
7.0 .
6.4
5.7
5.2
4.6
3.4
2.8
90 %
10.7
9.0
7.9
7.2
6.5
5.9
5.2
r4.6
3.9
3.3
100%
12.0
10.0
8.8
9.1
7.3
6.6
5.8
4.3
3.6
Note: The required surface area calculated from the tables is to be provided at the pezu11 at�pn.
a�SERo !CES, PA
319 WALNUT' S-IREET
MLMIN(3MN NO 2801

BREWSTER PLACE
PHASE TWO
AWASON60RO TOWNSHIP
NEW HANOVER COUNTY
NORTH CAROLINA
OWNER, SATURN DEVELOPMENT
3901 OLEANDER [)RILE
WILMINGTON. N.C. 28403 i j
"19
J
I p
WTM
rag
�
li
179
RK
ISO
S�w
POND I DRAIII
M4h0UIS PILLS SUBDIVISION
216 2171 2181 219
77-7
1 2,0! 211 212 213 214"1
—2117 2,a
02 203
1142 NIT jjq� rMl IJ71 1�1 IZ5� TJ4
149
�Ir
11241 125'11 fjo US t]T
7
Ac 261 . 12A 128 1
IS? 6-097
7
i IS I. 114
If 121 126 1119 117
I I e - I l�
4.771 Ac
3 762
WE. BLACKMON CON57RUC77ON-00w - % ik O.B. 1499 PG. 433
s
"r
POND Z DRA-II~ A R C-A
LEMEWL
alowr ere
LOCAWN UAP
(W m
MPG J 72 i
------ ---- _
apf",E, FL�U
.I
102
105
`4
"'61 107
M J12
vNDSEY DINKINS
HANOVER DESIGN SERVICES,
LAND SUALIMS EN ffl?s A LAJYL)
319 111 SMEET
N[LN0wft mc 26401
NOT w SCALE
i :v
LOCAWN UAP
(W m
MPG J 72 i
------ ---- _
apf",E, FL�U
.I
102
105
`4
"'61 107
M J12
vNDSEY DINKINS
HANOVER DESIGN SERVICES,
LAND SUALIMS EN ffl?s A LAJYL)
319 111 SMEET
N[LN0wft mc 26401
NOT w SCALE
i :v

POND 1 STAGE - STORAGE TABLE
STAGE - STORAGE TABLE
INCREMENTAL
ELEVATION AREA VOLUME
(R) (so (co
STORAGE STORAGE
(cf) (acre-ft)
05
17,050
-
1
18,888
17,969
-
2
22,619
20,754
-
3
26,427
24,523
-
4
30,311
28,369
-
5
34,263
32,287
-
6
38,276
36,270
-
7
42,351
40,314
-
8
50,676
46,514
9
54,924
52,800
52,800
- _ = 10
59,228
57,076- _
-109,876
11
63,589
61,409 t
_171,285
`- - - - 12
68,006
65,798
-237,082
_ - - 13
72,480
-70,2.43
307,325
= VOLUME AT PERMANENT POOL
(ELEVATION 8) _
POND 1 STAGE - DISCHARGE TABLE
- = ELEVATION 3" PVC
(ft) (cfs)
8"
9
024
- 10
033
11
041
12
047
13
053
0
12121
2 5224
3 9321
54426
70552
246,998 cf
WEIR - -_GRATES SPILLWAY
(cfs) (cfs)t (cfs)
- 264 747 1493
1372 7760 -
21 12 16697 12000
i
TOTAL - _ _-
(cfs) -
024
297 2281
9179
30862
HANOVER DE8lrN SERVICES, PA
319 WALNUT STREET
WILKNOTON NC 28k01

POND 1 STAGE - STORAGE TABLE
STAGE - STORAGE TABLE
INCREMENTAL
ELEVATION AREA VOLUME
(ft) (so (co
STORAGE STORAGE
(co (acre-ft)
05
17,050
-
1
18,888
17,969
-
2
22,619
20,754
-
3
26,427
24,523
-
4
30,311
28,369
-
5
34,263
32,287
-
6
38,276
36,270
-
7
42,351
40,314
-
8
50,676
46,514
-
9
54,924
52,800
52,800
- _ - - 10
59,228
57,076- _
-109,876
t _ 11
63,589
61,409- ,
v171,285
`- -_ - - 12
68,006
65,798
_-23_7,082
^307,325
13
72,480
_70,243
VOLUME AT PERMANENT POOL
(ELEVATION 8) _
POND 1 STAGE - DISCHARGE TABLE
- -ELEVATION 3" PVC
- (ft) (cfs)
8
9
024
_ - 10
033
11
041
12
047
13
0 53
12121
25224
3 9321
54426
70552
246,998 cf
WEIR - - GRATES SPILLWAY
(cfs)
(cfs) (cfs)
=264
-_
747
1493
1372
7760 -
21 12
16697 12000
E
TOTAL - -
(cfs) _
024 _
297 _--
22 81
9179
30862 --
HANOVER DESIGN SERVICES, pA
319 WALNUT STREET
WILMINGTON NC 28401

POND 2 STAGE - STORAGE TABLE
INCREMENTAL
ELEVATION AREA VOLUME STORAGE STORAGE
(ft) (so (co (co (acre-ft)
-0 5
6,227
-
0
7,236
6,732
-
-
1
9,454
8,345
-
-
2
11,802
10,628
-
-
3
14,259
13,031
-
-
4
16,866
15,563
-
-
5
19,742
18,304
-
-
6
22,896
21,319
-
-
7
29,788
26,342
-
-
8
35,131
32,460
32,460
07452
- 9
41,673
38,402
70,862
16267
10
47,328
44,501
=. 115,362
26483
11
53,054
50,191
165,553 =
3 8006
12 _
58,850
55,952 -
- 221,505 -
5 0850
VOLUME AT PERMANENT POOL (ELEVATION-7)-=
120,263 cf
POND 2 STAGE - DISCHARGE
TABLE
ELEVATION
3" PVC
WEIR
GRATES
SPILLWAY
TOTAL
(ft) ,
(cfs)
(cfs)
(efs)
(cfs)
(cfs)
7-_- -
-
-
-
8
024
-
-
024
9- _
033
594
_-
-
627
_
- _ 10-_
041
1680
- 42 24
_ _ -
5945
- 11
047
3087
-119 47
- -
15081
12
0 53
4752
21949
12000
387 53
HANOVER OESIGRq SERVICES, PA
319 WALNUT STREET
WILMINGTON NC 28401

BREWSTER PLACE PHASE Il OUTLET CONTROL:
POND 1:
I ELEV = 10 5
6" TOP ELEV = 10 0
i
WEIR CUT ELEV = 9 0
0 80' x 1 00' WEIR CUT STATE STORAGE ELEV = 8 7
3" PVC WSEL = 8 0
NTS
A= 128SF
(4) — 2' -x 3' GRATES L = 16 9 FT -
- -WEIR- EQUATION
Q = CLH'1`
- C = 33 for sharp crested -
ORIFICE EQUATION
- Q = CA 2qH
-C=06
- NTS _
40 FT
ELEV = 1325 CONSTRUCTED
ELEV = 13 00 SETTLED
EMERGENCY SPILLWAY
ELEV = 12 00 SPILLWAY
RIP RAP ' Y C = 3 0 for broad crested
NTS HAgOVER DE&IGN SERVICES PA
319 WALhUTS�RF
144UdINtiTON NC 2d901

BREWSTER PLACE PHASE ll OUTLET CONTROL:
POND 2:
ELEV = 9 0
6" TOP ELEV = 8 5
WEIR CUT ELEV = 8 0
0 50' x 1 80' WEIR CUT _ STATE STORAGE ELEV = 7 8
2-112" PVC WSEL = 7 0
NTS I I u
-_ A= 128SF - -
(4) - 2' -x `3' GRA TES _ L = 16 9 FT
NTS -
40 FT
WEIR EQUATION
-Q =- CLH'I'
C = 33 for sharp crested
ORIFICE EQUATION
Q = CA 2gH
C =_ 0 6 -
ELEV = 1225 CONSTRUCTED
ELEV = 12 00 SETTLED
EMERGENCY SPILLWAY
ELEV = 1100 SPILLWAY
RIP RAP C = 3 0 for broad crested
NTS HANOVER OESM SERVICES, PA
319 WALNUT SPREET
WILMINGTON NC 2MI

Reservoir Report
Page t
English
Reservoir No 1 - pondl
Pond Data
Pond storage is based on known contour areas
Stage / Storage Table
Stage Elevation Contour area Incr Storage Total storage
ft ft sqft cult cuft
000
8 00
50,676
0
0
1 00
900
54,924
52,800
52,800
200
1000
59,228
57,076
109,876
300
11 00
63,589
61,409
171,285
400
1200
_
68,006
65,798
237,082
500
1300
72,480
70,243
307.325
Culvert / Orifice Structures
[A]
Rise in
= 240
Span in
= 24 0
No Barrels
= 2
Invert El ft
= 700
Length ft
= 500
Slope %
= 040
N-Value
= 013
Orif Coeff-
= 060
Multistage
= ----
[B] _[Cl [D]
30
00-
i00=
30
00
00 -
1
- 0
0_ -
800
- 0-00
000
50 '-00
00
1 00
000
000
010_
013
000
060
- 0 60
000
Yes
No
No
Weir Structures
[A]
Crest Len ft
= 169
Crest El ft
= 1050
Weir Coeff
= 330
Eqn Exp
= 150
Multistage
= Yes
[B] - [C]- [D]
400
0 8
= 0'0-� _
12 00
900
- -0 00 -
300
330--
300�__
1 50
-1-50-
150
No
Yes - -No_ _ _
Tailwater Elevation = 9 50 ft
Note All oudlo,w haw been anaWed under inlet and outlet control
Stage / Storage / Discharge
Table: -
-
-
Stage
Storage
Elevation
Clv A
CW B CIv C
Clv D Wr A
Wr B
Wr C Wr D
Discharge
ft
cult
ft
cfs
cfs cfs
cfs cfs
cfs
cfs _ cfs
cfs-
0 00
0
800
0-00
. -0 00 - --
--- 000
000
000 = "
000 _
1 00
52,800
900
-0 00
000 ' _--
--- 000
000
000 _ -_
000
200 _
109,876
1000
21 39
017 ---
--- 000
000
093 —
1 10
300
171,285
11 00
3705
025 ---
--- 1972
000
485 ---
2482
400
237,082
1200
4783
000 —
--- 10246
000
10 44- —
4783
500
307,325
1300
5659
000 —
— 22045
12000
1729 —
17659
HANOVER DESIGN SERVICES, D-P
319 WAI-NUT STREET
WILMINGTON NO 2&01

Reservoir Report
Page 1
ENhsh
Reservoir No 2 - pond2
Pond Data
Pond storage Is based on known contour areas
Stage / Storage Table
Stage Elevation Contour area
Incr Storage
Total storage
ft ft sgft
cult
cuft
000 7 00 29,788
0
0
1 00 800 35,131
32,460
32,460
200 900 41,673
38,402
70,862
300 1000 47,328
44,501,
115,362
400 11 00 53,054
50,191'
165,553
500 1200 58,850
55,952
221,505
Culvert / Onfice Structures
[A] [B]
- Rise in
= 240
25
Span in
= 240
25
No Barrels
= 2
1
Invert El ft
= 600
700
Length ft
= 500
50
Slope %
= 040
1 00
N-Value
= 013
010
- Onf Coeff
= 0 60 -
060
Multistage
= —
Yes
Weir Structures
4
[C]
_ [D]
[A]
06
-0 0
"Crest Len ft=
169
0 0
_--0 0 : -
^ Crest El ft
= 900
-0
`0'
- Weir Coeff
= 330
000
- 000
Eqn Exp
= 1 50
-00
-00
"Multi -Stage
= Yes
000
000
013
000
[B] [C] [D]
400
18 -
00
11 00
8 00_
_ 0 00--
3 00
330
0 00 `-
1 50
1 50
000
No
Yes -
No _-- -
060 000
No No Tadwater Elevation = 8 50 ft
Note All ouNavc haw been analged under inlet and outlet mntr l
- Stage / Storage / Discharge
Table
- -_ -
—
Stage
Storage
Elevation
CIv A
C16 B
Clv C Clv D Wr A
Wr B
Wr C Wr D
Discharge-
ft -
tuft
ft
cfs
cfs
cfs - -cfs cfs
cfs
cfs cfs
cfs
_000
0
700
000
000_
- 000
000
000 --
000-
1 00
32,460
800
000
-000
-- - 000
000
000 ---
000
200
70,862
900
21 39
011
— 000
000
210 --
221 -
300
_
115,362
1000
3705
000
-- --- 5577
000
1091 ---
3705
400
165,553
11 00
4783
000
-- --- 15774
000
2348 ---
_ 47 83
500
221,505
1200
5659
000
— — 28979
12000
3889 —
17659
HANOVER DESIGN SERVICES, PA
319 WALNUT 5 i REET
WILMINGTON NC 26401

J
FILE MODE
--------------
854 MEMORY TX
* * * COMMUNICATION RESULT REPORT ( APR 27 2000 10 46AM ) * * *
OPTION
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
ADDRESS (GROUP)
9-3439941
P 1
TTI NCDENR WIRO
-i T",-}------PAGE--
K / P 1/1
E-2) BUST
E-4) NO FACSIMILE CONNECTION
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
Wilmington Regional Office
James Hwit, Governor
FAX COVER SHEET Bill Holman, Secretary
Date: April 27, 2000
To: Howard Resnick, P.E.
Company: Hanover Design Services
FAX #: [phone]
DWQ Stormwater Project #SW8 990732
Project Name: Brewster Place Phase H
MESSAGE:
Fr
Wdit
tior
FAX : [phone]
Phone #: [phone]
As discussed at the workshops last year, the orifice size is supposed to be based on the minimum 1"
volume, not the provided volume, as was the practice in the past. Please recheck the 3° orifice size
for both ponds and make the necessary adjustments. You can submit a revised page 1 of the
supplement and revised detail sheets as needed.

State of North Carolina
Department of Environment and Natural Resources
James B Hunt, Governor
Division of Water Quality
Wilmington Regional Office
FAX COVER SHEET
Date: April 27, 2000
To: Howard Resnick, P E.
Company: Hanover Design Services
FAX #: [phone]
DWQ Stormwater Project #SW8 990732
Project Name: Brewster Place Phase II
MESSAGE:
Bill Holman, Secretary
No. of Pages- 1
From: Linda Lewis
Water Quality Section - Stormwater
FAX #: [phone]
Phone #. [phone]
As discussed at the workshops last year, the orifice size is supposed to be based on the mimmum 1 "
volume, not the provided volume, as was the practice in the past Please recheck the 3" onfice size
for both ponds and make the necessary adjustments You can submit a revised page 1 of the
supplement and revised detail sheets as needed
S \WQS\STORMWAT\LETTERS\990732 APR
127 Cardinal Drive Extension, Wilmington, NC 28405-3845 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer

Hanover Design Services, P.A.
Land Surveyors, Engineers, Land Planners
March 29, 2000
Ms Linda Lewis
Environmental Engineer
N C Department of Environment
And Natural Resources
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405
Re Modified Stormwater Management Permit
For Brewster Place Phase Two
NCDENR/DWQ Permit No SW8 990732
New Hanover County
HDS Project No 3888
Dear Ms Lewis
Enclosed please find the following items
MARS, 00
MI
RF1FB VED
MAR 3 u 2000
BY,�3gcOI r�
- original and one (1) copy of the completed Stormwater Management Permit Application and
Wet Detention Basin Supplements for the referenced project
- $420 00 application fee
- one (1) copy of the Stormwater Management Calculations
- one (1) copy of the Erosion Control Narrative and Erosion Control Calculations
- two (2) copies of sheets 1 through 4 entitled "Erosion and Sediment Control and Water
Quality Plan"
Stormwater on this project will be controlled using two (2) detention ponds Please note that Detention
Pond 1 has no forebay, but instead utilizes a wetland area as a vegetative filter This design is the result
of an agreement made between the Army Corps of Engineers and the developer in which designated
areas shown on the plan are to be dedicated as conservation easements Additionally, the Corps has
encouraged the developer to incorporate these conservation areas into the stormwater treatment design
Consequently, stormwater is charged into the wetland area where it sheetflows and/or slowly migrates
towards the detention pond There are no direct stormwater outfalls into Detention Pond 1 The
utilization of this wetland/conservation area combined with the grassed swales which outfall into the
wetlands function adequately as a pretreatment for Detention Pond 1 and comply with NCDENR's Best
Management Practices
319 Walnut Street Wilmington, NC 28401 [phone]

We request NCDENR certification of compliance of this project with stormwater regulations Thank
you for your consideration of this request Please call if you require any additional information
Very truly yours,
Howard Resnik, PE
Encl As noted above
cc Terry Turner, Saturn Development