SW8061037_CURRENT PERMIT_20061121

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

�0F W A rFgp Michael F Easley, Governor
,0 G William G Ross Jr, Secretary
North Carolina Department of Environment and Natural Resources
Alan W Klimek, P E Director
Division of Water Quality
November 21, 2006
Kevin Hine, Executive Vice President/General Manager
Duplin Land Development, Inc
110 River Village Place
Wallace, NC 28466
Subject: Stormwater Permit No. SW8 061037
The Bluffs at River Ridge
High Density Subdivision Project
Duplin County
Dear Mr Hine
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for The Bluffs at River Ridge on November 14, 2006 Staff review of the plans and
specifications has determined that the protect, as proposed, will comply with the Stormwater
Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding Permit No SW8 061037,
dated November 21, 2006, for the construction of the protect, The Bluffs at River Ridge
This permit shall be effective from the date of issuance until November 21, 2016, and shall be
subject to the conditions and limitations as specified therein Please pay special attention to
the Operation and Maintenance requirements in this permit Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands
are made this permit shall be final and binding
If you have any questions, or need additional information concerning this matter, please
contact Chris Baker, or me at [phone]
Sincer ,
Edwa c
Regional Supervisor
Surface Water Protection Section
ENBlcsb S 1WQSISTORMWATERIPERMIT1061037 nov06
cc Phil Norris, Norris, Kuske and Tunstall
Duplin County Inspections
Chris Baker
Wilmington Regional Office
Central Files
rr
Nef Carolina
Naturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone]
Internet www acwaterguality ora Location 512 N Salisbury St Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 5G% Recycled110% Post Consumer Paper
Customer Service
1-87 7-623-6748

State Stormwater Management Systems
Permit No SW8 061437
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY SUBDIVISION 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
Kevin Hine, Duplin Land Development, Inc
The Bluffs at River Ridge
NC 41, Wallace NC/Duplm County
FOR THE
construction, operation and maintenance of three (3) wet detention ponds in compliance
with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater
rules') and the approved stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit
This permit shall be effective from the date of issuance until November 21, 2016 and
shall be subject to the following specified conditions and limitations
I. DESIGN STANDARDS
1 This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data
2 This stormwater system has been approved for the management of stormwater
runoff as described in Section 15 on page 3 of this permit The subdivision is
permitted for 116 lots, each allowed a maximum of 15,000 square feet of built -
upon area Future development is limited to 26,241 square feet within drainage
area 1, 106,371 square feet within drainage area 2-3, and 23,483 square feet
within drainage area 4 and is included in this permit under section 1 5 item b
(future)
3 Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit ,
4 All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans
Page 2of9

State Stormwater Management Systems
Permit No SW8 061037
5
The following design elements have been permitted for these wet detention pond
stormwater facilities, and must be provided in the system at all times
Pond #1
a
b
c
d
e
f
h
I
m
n
0
p
Pond #3
a
0
c
d
e
f
h
I
m
n
0
p
Drainage Area, acres
Onsite, ft
Offsite, ft2
Total Impervious Surfaces, ft2
Lots at 15,000 ft2
Roads/Parking, ft2
Future, ft2
Offsite, ft2
Pond Depth, feet
TSS removal efficiency
Design Storm
Permanent Pool Elevation, FMSL
Permitted Surface Area @PP ft2
Permitted Storage Volume, ftj
Storage Elevation, FMSL
Controlling Orifice
Permanent Pool Volume, ft3
Forebay Volume, ft3
Maximum Fountain Horsepower
Receiving Stream 1 River Basin
Stream Index Number
Classification of Water Body
Drainage Area, acres
Onsite, ft2
Offsite, ft2
Total Impervious Surfaces, ft2
Lots at 15,000 ft2
Roads/Pa2rking, ft2
Future, ft
Offsite, ft2
Pond Depth, feet
TSS removal efficiency
Design Storm
Permanent Pool Elevation, FMSL
Permitted Surface Area @PP ft2
Permitted Storage Volume, ftl
Storage Elevation, FMSL
Controlling Onfice
Permanent Pool Volume, ft3
Forebay Volume, ft3
Maximum Fountain Horsepower
Receiving Stream 1 River Basin
Stream Index Number
Classification of Water Body
2072
902,411
NIA
541,446
450,000
65,205
26,241
NIA
75
90%
1"
330
56,550
52,649
3390
4" 0 pipe
339,300
71,923
1
NE Cape Fear River/ Cape Fear
18--74--(255)
"C SWP HQW"
6374
2,776,163
NIA
1,388,081
1,095,000
186,710
106,371
NIA
75
90%
1"
330
194,820
147,315
3375
6" O pipe
1,168,920
229,108
3
NE Cape Fear River 1 Cape Fear
18-74--(255)
"C SWP HQW"
Page 3 of 9

State Stormwater Management Systems
Permit No SW8 061037
Pond #4
a
I
c
d
e
f
h
I
m
n
0
p
Drainage Area, acres
Onsite, ft
Offsite, ft2
Total Impervious Surfaces, ft2
Lots at 15,000 ft2
Roads/Parking, ft2
Future, ft2
Offsite, ft2
Pond Depth, feet
TSS removal efficiency
Design Storm
Permanent Pool Elevation, FMSL
Permitted Surface Area @PP ft2
Permitted Storage Volume, ft'
Storage Elevation, FMSL
Controlling Orifice
Permanent Pool Volume, ft3
Forebay Volume, ft3
Maximum Fountain Horsepower
Receiving Stream I River Basin
Stream Index Number
Classification of Water Body
II. SCHEDULE OF COMPLIANCE
1313
571,889
NIA
257,350
195,000
38,867
23,483
NIA
75
90%
1"
285
46,600
28,590
291
3" O pipe
279,600
55,081
1
NE Cape Fear River 1 Cape Fear
18-74—(255)
"C SWP HQW"
1 No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature
(such as swales) shown on the approved plans as part of the stormwater
management system without submitting a revision to the permit and receiving
approval from the Division
2 The permittee is responsible for verifying that the proposed built -upon area for
the entire lot does not exceed the maximum allowed by this permit Once the lot
transfer is complete, the built -upon area may not be revised without approval
from the Division of Water Quality, and responsibility for meeting the built -upon
area limit is transferred to the individual property owner
3 If an Architectural Review Board or Committee is required to review plans for
compliance with the BUA limit, the plans reviewed must include all proposed
built -upon area Any approvals given by the Board do not relieve the homeowner
of the responsibility to maintain compliance with the permitted BUA limit
4 The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below
a Any revision to the approved plans, regardless of size
b Project name change
c Transfer of ownership
d Redesign or addition to the approved amount of built -upon area
e Further subdivision, acquisition, or sale of all or part of the project area
The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought
f Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan
Page 4 of 9

State Stormwater Management Systems
Permit No SW8 061037
5 The Director may determine that other revisions to the project should require a
modification to the permit
6 All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans
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
8 The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface
9 During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately
10 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
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
12 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 The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function at optimum efficiency The approved Operation and Maintenance Plan
must be followed in its entirety and maintenance must occur at the scheduled
intervals including, but not limited to
a Semiannual scheduled inspections (every 6 months)
b Sediment removal
c Mowing and revegetation of side slopes
d Immediate repair of eroded areas
e Maintenance of side slopes in accordance with approved plans and
specifications
f Debris removal and unclogging of structures, orifice, catch basins and
Piping
g Access to all components of the system must be available at all times
14 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
Page 5 of 9

State Stormwater Management Systems
Permit No SW8 061037
15 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
16 Prior to the sale of any lot, the following deed restrictions must be recorded
a The following covenants are intended to ensure ongoing compliance with
State Stormwater Management Permit Number SW8 061037, as issued
by the Division of Water Quality under NCAC 2H 1000
b The State of North Carolina is made a beneficiary of these covenants to
the extent necessary to maintain compliance with the Stormwater
Management Permit
c These covenants are to run with the land and be binding on all persons
and parties claiming under them
d The covenants pertaining to stormwater may not be altered or rescinded
without the express written consent of the State of North Carolina, Division
of Water Quality
e Alteration of the drainage as shown on the approved plans may not take
place without the concurrence of the Division of Water Quality
f The maximum built -upon area per lot is 15,000 square feet This allotted
amount includes any built -upon area constructed within the lot property
boundaries, and that portion of the right-of-way between the front lot line
and the edge of the pavement Built upon area includes, but is not limited
to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and
parking areas, but does not include raised, open wood decking, or the
water surface of swimming pools
g All runoff on the lot must dram into the permitted system This may be
accomplished through providing roof dram gutters which drain to the
street, grading the lot to drain toward the street, or grading perimeter
swales and directing them into the pond or street Lots that will naturally
drain into the system are not required to provide these measures
h Built -upon area in excess of the permitted amount will require a permit
modification
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 contain all of the statements above, the signature of the Permittee, the
deed book number and page, and the stamp/signature of the Register of Deeds
18 Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel The facility must be in compliance with all permit conditions Any
items not in compliance must be repaired or replaced to design condition prior to
the transfer Records of maintenance activities performed to date will be
required
19 Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria
a The fountain must draw its water from less than 2' below the permanent
pool surface
b Separated units, where the nozzle, pump and intake are connected by
tubing, may be used only if they draw water from the surface in the deepest
part of the pond
c The falling water from the fountain must be centered in the pond, away from
the shoreline
d The maximum horsepower for the fountain's pump is based on the
permanent pool volume The maximum pump power for a fountain in ponds
1 and 4 is 1 HP, pond 3 is allowed 3HP maximum pump power
Page 6of9

State Stormwater Management Systems
Permit No SW8 061037
20 Built upon area includes, but is not limited to, structures, asphalt, concrete,
gravel, brick, stone, slate, coquina and parking areas, but does not include
raised, open wood decking, or the water surface of swimming pools
III GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director In the event there is either a desire for the facilities to
change ownership, or there is a name change of the Permittee, a
"Name/Ownership Change Form" must be submitted to the Division of Water
Quality accompanied by appropriate documentation from the parties involved
This may include, but is not limited to, a deed of trust, recorded deed restrictions,
Designer's Certification and a signed Operation and Maintenance plan The
project must be in good standing with DWQ The approval of this request will be
considered on its merits and may or may not be approved
2 The permittee is responsible for compliance with all of the terms and conditions
of this permit until such time as the Director approves the transfer request
3 Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215 6A to 143-215 6C
4 The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction
5 In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permtttee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems
6 The permit may be modified, revoked and reissued or terminated for cause The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition
7 Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours
8 The permittee shall notify the Division of any name, ownership or mailing address
changes within 30 days
9 A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction
Permit issued this the 21 st day of November 2006
NORT AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Alan W Klimek, P E , Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 061037
Page 7 of 9

State Stormwater Management Systems
Permit No SW8 061037
The Bluffs at River Ridge
Stormwater Permit No SW8 061037
Duplin Countv
Designer's Certification
Page 1 of 2
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodical lylweeklylfu11
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications
The checklist of items on page 2 of this form are a part of this Certification
Noted deviations from approved plans and specifications
Signature
Registration Number
Date
SEAL
Page 8 of 9

State Stormwater Management Systems
Permit No SW8 061037
Certification Requirements Page 2 of 2
.1 The drainage area to the system contains approximately the permitted
acreage
2 The drainage area to the system contains no more than the permitted
amount of built -upon area
3 All the built -upon area associated with the project is graded such that the
runoff drains to the system
;4 All roof drains are located such that the runoff is directed into the system
5 The outlet/bypass structure elevations are per the approved plan
6 The outlet structure is located per the approved plans
7 Trash rack is provided on the outlet/bypass structure
8 All slopes are grassed with permanent vegetation
9 Vegetated slopes are no steeper than 3 1
10 The inlets are located per the approved plans and do not cause short-
circuiting of the system
11 The permitted amounts of surface area and/or volume have been
provided
12 Required drawdown devices are correctly sized per the approved plans
13 All required design depths are provided
14 All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter
15 The required dimensions of the system are provided, per the approved
plan
cc NCDENR-DWQ Regional Office
Duplin County Building Inspections
Page 9 of 9

N KT #06076
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocoptedfor use as an original
I GENERAL INFORMATION
1 Applicants name (specify the name of the corporation, individual, etc who owns the project)
Du lin Land Development, Inc
2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance)
Kevin Hine, Executive Vice President / General Manager
Mailing Address for person listed in item 2 above
110 River Village Place
City Wallace State NC Zip 28466
Telephone Number - (910) 2854171
Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc )
The Bluffs at River Ridge
Location of Project (street address)
NC 41
City Wallace County Duplin
6 Directions to project (from nearest major intersection)
From the intersection of 1-40 & NC 41, take NC 41 north for approximately 1 mile to the entrance
to River Landing on the nght The gate keeper will provide directions to the site
7 Latitude 340 44' 06"
Longitude 770 56' 14"
of project
8 Contact person who can answer questions about the project
Name J Phi1h2 Noms, P E Telephone Number - [phone]
II PERMIT INFORMATION
I Specify whether project is (check one) X New Renewal Modification
Form SWU-101 Version 3 99 Page 1 of 4

N
C
If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number NIA And its issue date (if known) NIA
Specify the type of project (check one)
Low Density X High Density Redevelop General Permit Other
4 Additional Project Requirements (check applicable blanks)
CAMA Major X Sedimentation/Erosion Control 404/401 Permit NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748
III PROJECT INFORMATION
I In the space provided below, summarize how stormwater will be treated Also attach a detailed narrative
(one to two pages) describing stormwater management for the project
- - -- -
Retention ponds
2 Stormwater runoff from this project drains to the Cape Fear River Basin
3 Total Project Area 97 58 AC 4 Project Built Upon Area 5144 %
5 How many drainage areas does the project have9 3
6 Complete the following information for each drainage area If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below
Basin Information
Drainage Area I
Drainage Area 2
Drainage Area 3
Receiving Stream Name
NE Cape Fear River
NE Cape Fear River
NE Cape Fear River
Receiving Stream Class
C Swp HQW
C Swp HQW
C Swp HQW
Drainage Area
902,411 SF / 20 72 AC
2,776,163 SF / 63 74 AC
571,889 SF / 13 13 AC
Existing Impervious * Area
0
0
0
Proposed Impervious* Area
541,446 SF 112 429 AC
1,388,081 SF / 31 86 AC
257,350 SF 15 0908 AC
% Impervious* Area total
60%
50%
45%
Impervious* Surface Area
Drainage Area 1
Draina a Area 2
Drainage Area 3
On -site Buildings
450,000 SF / 10 33 AC
1,095,000 SF 125 138 AC
195,000 SF / 4 477 AC
On -site Streets
65,205 SF / 1 497 AC
186,710 SF 14 286 AC
38,867 SF / 0 892 AC
On -site Parking
0
0
0
On -site Sidewalks
0
0
0
Other on -site (Future)
26,241 SF / 0 602 AC
106,371 SF / 2 442 AC
23,483 SF 10 539 AC
Off -site
0
0
0
Total 541 446 SF 112 429 AC
Total 1,388 081 SF 131 86 AC
Total 257,350 SF 15 908 AC
* 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 Page 2 of 4

How was the off -site impervious area listed above derived?
NIA
IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a
table listing each lot number, size and the allowable built -upon area for each lot must be provided as an
attachment
The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality These covenants may
not be changed or deleted without the consent of the State
2 No more than 15,000 square feet of arty lot shall be covered by structures or impervious materials
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include
wood decking or the water surface of swimming pools
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
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 performance of the system as permitted
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot
V SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project Contact the Stormwater and General Permits Unit at [phone] for
the status and availability of these forms
Form SWU-102
Form SWU-103
Form SWU-104
Form SWU-105
Form SWU-106
Form SWU-107
Form SWU-108
Form SWU-109
Wet Detention Basin Supplement
Infiltration Basin Supplement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Underground Infiltration Trench Supplement
Neuse River Basin Supplement
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 initialing 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 $4200ayable 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 high water line
- Dimensioned property / project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- 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
J Phillip Norris, P E
Designated agent (individual or firm) Noms, Kuske & Tunstall Consulting Engineers, Inc
Mailing Address
902 Market Street
City Wilmington State NC Zip
Phone [phone]
VM. APPLICANT'S CERTIFICATION
Fax [phone]
28401
I, (print or type name of person listed in General Information, item 2) Kevin Hine, Executive Vice President 1
_General Manager
Certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions and
protective covenants will be rded, and that the proposed project complies with the requirements of 15A NCAC
2H 1000 / I�
Signature
Form SWU-101 Version 3 99 Page 4 of 4
Date Z aza—
I

► RTY. Q
Permit No _f2 O(o w
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This farm 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 The Bluffs at River Ridge T
Contact Person .1 Phillip Noms, P E Phone Number [phone]
For projects with multiple basins, specify which basin this worksheet applies to 1
elevations
Basin Bottom Elevation
Permanent Pool Elevation
Temporary Pool Elevation
areas
2550 ft
3300 R
3390 ft
Permanent Pool Surface Area 56,550 sq ft
Drainage Area 2072 ac
Impervious Area
volumes
1243 ac
(floor of the basin)
(elevation of the orifices)
(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)
Permanent Pool Volume 339,300 cu ft (combined volume of main basin and forebay)
Temporary Pool Volume 52,649 cu ft (volume detained above the permanent pool)
Forebay Volume --WW' cu ft (approximately 20% of total volume)
-71 i a32'
Other parameters
SAIDA' 00190
Diameter of Orifice 40 in
Design Rainfall 10 in
Design TSS Removal 2 90 %
Form SWU-102 Version 3 99
(surface area to drainage area ratio from DWQ table)
(2 to 5 day temporary pool draw -down required)
(minimum 85% required)
Page 1 of 4

Footnotes
56'
When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to detennine the correct value for non-
standard table entries
In the 20 coastal counties, the requimment 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
H. 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.
Ls Initials
a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
G7 A#-P r The forebay volume is approximately equal to 20% of the basin volume
c The temporary pool controls runoff from the design storm event
d The temporary pool draws down in 2 to 5 days
e If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations
The basin length to width ratio is greater than 3 1
The basin side slopes above the permanent pool are no steeper than 3 1
A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail)
Vegetative cover above the permanent pool elevation is specified
A trash rack or similar device is provided for both the overflow and orifice
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 dunng construction, clean out of the
basin is specified prior to use as a wet detention basin
m specified which will drain the basin for maintenance or an emergency
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) ❑ does
This system (check one) ❑ does
Form SWU-102 Version 3 99
® does not incorporate a vegetated filter at the outlet.
® does not incorporate pretreatment other than a forebay.
Page 2 of 4

Maintenance activities shall be performed as follows
I 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 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 sic inches, and remove trash as needed
3 Inspect and repair the collection system (i a catch basins, piping, swales, npiap, 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
When the permanent pool depth reads
Sediment Re oval El 27 38 7
Bottom 41V_ation_25_50__
x
56 feet in the main pond, the sediment shall be removed
56 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 33 00
Sediment Removal Elevation 27 38 75%
------------------------------------- Y -----
Bottom Elevation 25 50 125%
FOREBAY MAIN POND
5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These
plants shall be encouraged to grow along the vegetated shelf and forebay berm
6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical
Form SWU-102 Version 3 99 Page 3 of 4

Ik
1 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 Kevin Hine
Title Executive Vice President 1 General Manager
Address 110 River Village Place Wallace, NC 28466
Phone [phone]
Signature
Date
Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president
1, 2 la d,(eu x j� ,a _ , a Notary Public for the State of 00 f k'in Ca.co k "ra
County of fiend J , do hereby certify that ke_v i,I ..A.- (i ne,
Personally appeared before me this $��h day of AVs4200(o , and acknowledge the due
Execution of the foregoing wet detention basin maintenance requirements Witness my hand and official seal
P.- O
ids -t':
M
•
e
•CO
18,1881110tv
SEAL
Signature
My commission expires p[ + IS �p 0
Form SWU-102 Vernon 3 99 Page 4 of 4

• N KT #06076
Permit No Svc
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review•
A complete stonmwater 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 The Bluffs at River Ridge
Contact Person J Phillip Noms, P E Phone Number
For projects with multiple basins, specify which basin this worksheet applies to
[phone]
2-3
elevations
Basin Bottom Elevation 2550 ft (floor of the basin)
Permanent Pool Elevation 33 00 ft (elevation of the orifices)
Temporary Pool Elevation 3375 ft (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 194,820 sq ft (water surface area at the orifice elevation)
Drainage Area 6374 ac (on -site and off -site drainage to the basin)
Impervious Area 3186 ac (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume 1 168,920 cu ft (combined volume of main basin and forebay)
Temporary Pool Volume 147,315 cu ft (volume detained above the permanent pool)
Forebay Volume—1Vfitt' cu ft (approximately 20% of total volume)
1a9) jcq
Other parameters
SAIDA' 00150 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 60 in (2 to 5 day temporary pool draw -down required)
Design Rainfall 10 in
Design TSS Removal 2 90 % (minimum 85% required)
Form SWU-102 Version 3 99 Page 1 of 4

Footnotes
I When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool stung 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 BIv1P manual provides design tables for both 85% TSS removal and 901/6 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.
Ap Initials
a
s r� rti+�lr
c
d
/✓ e
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
The forebay volume is approximately equal to 20% of the basin volume
The temporary pool controls runoff from the design storm event
The temporary pool draws down in 2 to S days
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations
The basin length to width ratio is greater than 3 1
The basin side slopes above the permanent pool are no steeper than 3 1
A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail)
Vegetative cover above the permanent pool elevation is specified
A trash rack or similar device is provided for both the overflow and orifice
A recorded drainage easement is provided for each basin including access to nearest nght-
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
—_M_Ax=hanism is specified which will dram the basin for maintenance or an emergency
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) ❑ does
This system (check one) ❑ does
Form SWU-102 Version 3 99
® does not incorporate a vegetated filter at the outlet.
® does not incorporate pretreatment other than a forebay
Page 2 of 4

Maintenance activities shall be performed as follows
After every significant runoff producing rainfall event and at least monthly
a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
b Check and clear the orifice of any obstructions such that drawdown of 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 a 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 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
When the permanent pool depth reads
Sediment Re oval El 27 38 1 75
Bottom 41v-ation-25-60- - 1--/5
FOREBAY
56 feet in the main pond, the sediment shall be removed
56 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
0711 in the blanks)
Permanent Pool Elevation 33 00
-- Sediment -Removal Elevation 27 38 75%
Bottom Elevation 25 50
MAIN POND
5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These
plants shall be encouraged to grow along the vegetated shelf and forebay berm
6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical
Form SWU-102 Version 3 99 Page 3 of 4

! 7 All components of the wet detention basin system shall be maintained in good working order
I acknowledge and agree by my signature below that 1 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 Kevin Hine
Title Executive Vice President 1 General Manager _
Address 110 River Village Place Wallace, NC 28466
Phone
Signatt
Date
Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president
1, Andcea "S 1,el , a Notary Public for the State of ^K o (+V Ca.fo U r.a
County of Mende! , do hereby certify that keJ+ n_ _A Wino, _- -- _-
Personally appeared before me this S i>day of s 0 0 , and acknowledge the due
Execution of the foregoing wet detention basin maintenance requirements Witness my hand and official seal
eaters
P. K
r Q;
•
4� ••.......•• •
A�dARp eou
n °`• SEAL
Signature
My commission expires Apr'.1 ti5 .0y
Form SWU-102 Version 3 99 Page 4 of 4

k ,
NKT #06076
Perm it No Sut�c<AiP7._
State of North Carolina (to be provided by DWQ)
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This farm may be photocopied for use as an original
DWQ Stormwater Management Plan Review
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details
L PROJECT INFORMATION
Project Name The Bluffs at River Ridge
Contact Person J Phillip Norris, P E Phone Number 910 343-9653
For projects with multiple basins, specify which basin this worksheet applies to 4
elevations
Basin Bottom Elevation 2100 ft (floor of the basin)
Permanent Pool Elevation 28 50 R (elevation of the orifices)
Temporary Pool Elevation 2910 R (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 46,600 sq R (water surface area at the orifice elevation)
Drainage Area 1313 ac (on -site and off -site drainage to the basin)
Impervious Area 591 ac (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume
279,600_ _
cu ft
(combined volume of main basin and forebay)
Temporary Pool Volume
28,590
cu ft
(volume detained above the permanent pool)
Forebay Volume
--NW
cu It
(approximately 20% of total volume)
55fCa1
Other parameters
SAIDA'
00130
(surface area to drainage area ratio from DWQ table)
Diameter of Onfice
30
in
(2 to 5 day temporary pool draw -down required)
Design Rainfall
10
in
Design TSS Removal 2
90
%
(minimum 85% required)
Form SWU-102 Version 3 99 Page 1 of 4

Footnotes
When using the Division SA/DA tables, the coma SA/DA ratio for permanent pool siziig should be computed based upon the
actual impeimous % and permanent pool depth Linear mterpolatton should be employed to determine the correct value for non-
standard table entries
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal The NCDENR BWF manual provides design tables for both 85% TSS removal and 901/o TSS removal
U. 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
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
The forebay volume is approximately equal to 20% of the basin volume
The temporary pool controls runoff from the design storm event
The temporary pool draws down in 2 to 5 days
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
g The basin side slopes above the permanent pool are no steeper than 3 1
h A submerged and vegetated penmeter shelf with a slope of 6 1 or less (show detail)
i Vegetative cover above the permanent pool elevation is specified
J A trash rack or similar device is provided for both the overflow and orifice
k A recorded drainage easement is provided for each basin including access to nearest nght-
of-way
I If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin
m A mechanism is specified which will drain the basin for maintenance or an emergency
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) ❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one) ❑ does ® does not Incorporate pretreatment other than a forebay.
Form SWU-102 Version 3 99 Page 2 of 4

f
Maintenance activities shall be performed as follows
After every significant runoff producing rainfall event and at least monthly
a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
b Check and clear the onfice of any obstructions such that drawdown of 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 a 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 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 measunng 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
When the permanent pool depth reads
Sediment Re %Elvatlon
al El 22 88 7
Bottom 2100
>F'OREBAY
562 feet in the main pond, the sediment shall be removed
562 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
(fill m the blanks)
Permanent Pool Elevation 28 50
Sediment Removal Elevation 22 88 75%
Bottom Elevation 21 00 12
u;l►'f►11
5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These
plants shall be encouraged to grow along the vegetated shelf and forebay berm
6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical
Form SWU-102 Version 3 99 Page 3 of 4

Y'
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 Kevin Hine
Title Executive Vice President 1 General Manager
Address 110 River Village Place Wallace, NC 28466
Phone
Signature
Date S 1 <; loe'-
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, RndCfA J V-noW(GS , allotary Public for the State of
i�oC� �G.rol�a
County of �Q,ndi°( , do hereby certify that ke>/ i n A. 2
Personally appeared before me this $ day of &JEk and acknowledge the due
Execution of the foregoing wet detention basin maintenance requirements Witness my hand and official seal
61116tff
P Ki
o�
`G
a �/aj •�'. .�•• may' �
��'"�sA COUP ;,�``•
.`•• SEAL
Signature P. "Ok�
My commission expires Aril (S,)L(',l -'7
Form SWU-102 Version 3 99 Page 4 of 4

FUTURE
DEVELOPMENT
ENT
NEW LAKE #1
WAZ=;st
--
DRAINAGE AREA #1
902,411 S.F.
20.72 ACRES
IMPERxAOUS=65,205 S.F.
POND 0 33.00=56,550 S.F.
�I�
DRAINAGE AREA #4
571,889 S.F.
13-13 ACRES
IMP 'AOUS-38,86-7 S.F.
POND 28.50=46,600 S.F.
NEW LAKE #4
APPROVED
fooMM Wom miRomam
MANIAC �MWCOMMISSION.
DIVISION OF WATE;j 0jjA=
tt /a t to
css
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