SW6121107_CURRENT PERMIT_20130118

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

�r
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Pat McCrory Charles Wakild, P.E.
Governor Director
January 18, 2013
Concept Developments, Inc.
Attn: Joe Hollingsworth
Two Centre Plaza
Clinton, TN 37716
Subject: Stormwater Management Permit SW6121107
NC-PEM-4005
High Density Project
Robeson County
Dear Mr. Hollingsworth:
Natural Resources
John E. Skvarla, III
Secretary
The Fayetteville Regional Office of the Division of Water Quality received a complete Stormwater Management
Permit Application for NC-PEM-4005 on November 30, 2012 with additional information received December 17,
2012 and January 14, 2013. 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. Therefore, we are
forwarding herewith Stormwater Management Permit SW6121107 dated January 18, 2013, for the construction,
operation and maintenance of the subject project and associated stormwater BMPs.
This permit shall be effective from the date of issuance until January 17, 2021 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 by filing a written petition with the Office of Administrative Hearings (OAH). The written
petition must conform to Chapter 150B of the North Carolina General Statutes. Per NCGS 143-215(e), the petition
must be filed with OAH within thirty (30) days of receipt of this permit. You should contact the OAH with all
questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail
Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at
www.ncoah.com. 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 Mike Lawyer at
[phone] or by e-mail at [e-mail].
Sincerely, G
Belinda S. Henson
Regional Supervisor
Surface Water Protection Section
BSH: ML/ml
cc: Chad Brown, PE — Land Development Solutions (via e-mail)
FRO — Surface Water Protection Section
Location: 225 Green Street, Suite 714, Fayetteville, North Carolina 28301-5095
Phone: [phone] \ FAX: [phone] \ Customer Service: 1.877.623.6748
Internet: htip://portaI.ncdenr.orglweb/wq
An Equal Opportunity \ Affirmative Action Employer
Nne
orthiCaro6 tia
Naturally

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
Concept Developments, Inc.
NC-PEM-4005
Robeson County
FOR THE
construction, operation and maintenance of one wet detention basin and one bio-retention cell 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 January 17, 2021 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 Sections 1.6. and 1.7. of this permit. The stormwater controls have been designed to
handle the runoff from 174,250 square feet of total built -upon area.
3. The tract will be limited to the amount of built -upon area as indicated in Sections 1.6. and 1.7. of
this permit and per approved plans.
4. All stormwater collection and treatment systems must be located in either dedicated common
areas or recorded easements. The final plats for the project will be recorded showing all such
required easements, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
6. The following design criteria have been provided in the wet detention basin and must be
maintained at design condition:
a. Drainage Area, acres: 16.3
Onsite, ft2: 710,000
Offsite, ft2: 0
b. Total Impervious Surfaces, ft2: 130,680 (includes BUA in drainage area 3)

Buildings, ft2:
Streets, ft2:
Parking, ft2:
Sidewalks, ft2:
Other, ft2:
Future, ft2:
Offsite, ft2:
C.
Design Storm, inches:
d.
Pond Depth, feet:
e.
TSS removal efficiency:
f.
Permanent Pool Elevation, fmsl:
g.
Permanent Pool Surface Area, ft2:
h.
Permitted Storage Volume, ft3:
i.
Temporary Storage Elevation, fmsl
j.
Controlling Orifice:
k.
Permitted Forebay Volume, ft3:
I.
Receiving Stream / River Basin:
M.
Stream Index Number:
n.
Classification of Water Body:
65,350
7,900
13,500
350
0
0
0
1.5 (over designed to make up for area 3)
5.5
90%
155.50
12,500
35,500 at temporary pool
158.50
2.80" 0 pipe
4,850
Lumber River / Lumber
14-(4.5)
"B;Sw,HQW"
The following design criteria have been provided in the bio-retention cell and must be
maintained at design condition:
a.
Drainage Area, acres:
1.40
Onsite, ft2:
61,000
Offsite, ft2:
0
b.
Total Impervious Surfaces, ft2:
21,800
Buildings/Lots, ft2:
1,200 .
Streets, ft2:
5,100
Parking, ft2:
14,300
Sidewalks, ft2:
1,200
Other, ft2:
0
C.
Design Storm, inches:
1.5 (over designed)
d.
Max. Ponded Depth, inches:
9
e.
Seasonal High Water Table, fmsl:
151
f.
Planting Media Depth, feet:
2
g.
Cell Dimensions, feet:.
260 x 37
h.
Planting Elevation, fmsl:
158
i.
Top Surface Area, ft2:
4,700
j.
Permitted Storage Volume, ft3:
4,700
k.
Bypass / Storage Elevation, fmsl:
159
I.
Drawdown Time, hours:
24
M.
Number of plant species provided:
1 (grass)
j.
Receiving Stream / River Basin:
Lumber River / Lumber
k.
Stream Index Number:
14-(4.5)
I.
Classification of Water Body:
"B;Sw,HQW"
II. SCHEDULE OF COMPLIANCE
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.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will
be repaired immediately.
3. 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 Plans must be followed in its entirety and maintenance must occur at the
scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).

b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch
basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to authorized
personnel of DWQ. The records will indicate the date, activity, name of person performing the
work and what actions were taken.
5. A decorative spray fountain will be allowed in the wet detention basin 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 a fountain in this basin is 1/8 horsepower.
6. The facilities shall be constructed as shown on the approved plans. This permit shall become
voidable unless the facilities are constructed in accordance with the conditions of this permit, the
approved plans and specifications, and other supporting data.
Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has
been installed in accordance with this permit, the approved plans and specifications, and
other supporting documentation. Any deviations from the approved plans and
specifications must be noted on the Certification. A modification may be required for
those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device and prior to occupancy of the
facility.
9. Access to the stormwater facilities shall be maintained via appropriate easements at all times.
10. The permittee shall submit to the Director and shall have received approval for revised plans,
specifications, and calculations prior to construction, for any modification to the approved plans
including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage area.
e. Further subdivision, acquisition, lease 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.
11. The permittee shall submit final site layout and grading plans for any permitted future areas
shown on the approved plans, prior to construction.
12. 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.

13. The Director may notify the permittee when the permitted site does not meet one or more of the
minimum requirements of the permit. Within the time frame specified in the notice, the permittee
shall submit a written time schedule to the Director for modifying the site to meet minimum
requirements. The permittee shall provide copies of revised plans and certification in writing to
the Director that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director. In the event of
a change of ownership, or a name change, the permittee must submit a formal permit transfer
request to the Division of Water Quality, accompanied by a completed name/ownership change
form, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may not be
approved. The permittee is responsible for compliance with all permit conditions until such time
as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances, which may be imposed by other government
agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be
required by this Division, such as the construction of additional or replacement stormwater
management systems.
5. The permittee grants DENR Staff permission to enter the property during normal business hours
for the purpose of inspecting all components of the permitted stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a
request for a permit modification, revocation and reissuance or termination does not stay any
permit condition. '
7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must
follow the guidelines established in the North Carolina Erosion and Sediment Control Planning
and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes within
30 calendar days.
10. The permittee shall submit a renewal application with all required forms and documentation at
least 180 days prior to the expiration date of this permit.
Permit issued this the eighteenth day of January 2013.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
)(° for Charles Wakild, P.E., Director
6661 Division of Water Quality
By Authority of the Environmental Management Commission
Stormwater Management Permit SW6121107

NC-PEM-4005
Stormwater.Management Permit SW6121107
Robeson County
Designer's Certification
Page 1 of 2
I, , as a duly registered in the State of North
Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the
project,
(Project Name)
for (Project Owner) hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans
and specifications.
The checklist of items on page 2 of this form is a part of this Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date

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 with vegetated shelf at 10:1.
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, and a forebay.
15. . The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to: DWQ Fayetteville Regional Office
Surface Water Protection Section
225 Green Street, Suite 714
Fayetteville, NC 28301

310 Simmons Road, Suite K
Knoxville, TN 37922
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Transmittal
To: Mike Lawyer
Address: Division of Water Quality — Fayetteville Regional Office{
225 Green Street DENR-FRO
Fayetteville, NC 28301 JAN 14
2013
From: Chad Brown DWQ
Date: Jan. 8, 2013
Re: NC-PEM-4005
Mr. Lawyer
Here are the revisions we have been discussing the last couple weeks.
Please find enclosed the following:
2 copies of the revised drawings (C201 & C505)
Supplement Form
• O&M Agreement
If you need any further information or have any questions, please do not hesitate to call.
Thank You,
Chad Brown, PE

i -
Permit Number5L/62 1 t /
(to be provided by DWQ)
®RA
NCDENR
WAIFgpG
j ,
pGI
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
I' PROJECT INFORMATION `
,.t f f.-L ll,, ex, +f.. rru .cat
Project name The Hollingsworth Companies Project NC-PEM4005
Contact name Chad Brown
Phone number 865-671-2281
Date December 20, 2012
Drainage area number Area 2
Site Characteristics
Drainage area
60,980Ili
Impervious area
20,470 ft2
Percent impervious
33.6%
Design rainfall depth
1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
y (Y or N)
1-yr, 24-hr runoff depth
- 1.5 in
1-yr, 24-hr intensity
3.03 in/hr
Pre -development 1-yr, 24-hr peak flow
0.600 ft'/sec
Post -development 1-yr, 24-hr peak flow
1,800 ft'/sec
Pre/Post 1-yr, 24-hr peak control
1.200 ft'/sec
Storage Volume: Non -SA Waters
'
Minimum volume required
ft'
Volume provided
ft'
Storage Volume: SA Waters
1.5' runoff volume
2,670 ft'
Pre -development 1-yr, 24-hr runoff
770 ft'
Post -development 1-yr, 24-hr runoff
5,390 ft'
Minimum volume required
4,620 It'
Volume provided
4,700 ft'
OK
Cell Dimensions
Fording depth of water
9 inches
OK
Fording depth of water
0.75 If
Surface area of the top of the bioretention cell
4,700.0 ft'
OK
Length:
260 IT
OK
Width:
37 ft
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
Drawdown time, total:
24 hr
In -situ soil:
0.25 in/hr
Insufficient. Increase infiltration rate or include underdrains.
Soil permeability
Planting media soil:
Soil permeability
2.00 in/hr
OK
Soil composition
• Sand (by volume)
85%
OK
• Fines (by volume)
10%
OK
• Organic (by volume)
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media
20 (unitless)
OK
Form SW401-Bioretenlion-Rev.8
Parts I and II. Design Summary, Page 1 of 2
June 25, 2010

Permit Number:
(to be provided by DWQ)
Basin Elevations
Temporary pool elevation
159.00 fmsl
Type of bioretenlion cell (answer "Y' to only one of the two
following questions):
Is this a grassed cell?
y (Y or N) OK
Is this a cell with trees/shrubs?
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
158 fmsl
Depth of mulch
12 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil
156 fmsl
Planting media depth
2 ft
Depth of washed sand below planting media soil
0.33 ft
Are underdrains being installed?
y (Y or N)
How many clean out pipes are being installed?
5 OK
What factor of safely is used for sizing the underdrains? (See
2 OK
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
154.67 fmsl
SHWT elevation
151 fmsl
Distance from bottom to SHWT
3,67 ft OK
Internal Water Storage Zone (IWS)
Does the design include IWS n (Y or N)
Elevation of the top of the upturned elbow fmsl
Separation of IWS and Surface 158 ft
Planting Plan
Number of tree species 0
Number of shrub species 0
Number of herbaceous groundcover species 0 Recommend more species.
Additional Information
Does volume in excess of the design volume bypass the
bioretenlion cell?
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filler?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feel from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a proposed drainage easement with access
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an'X' in the shaded cell)
Gravel and grass
(8inches gravel followed by 3-5 ft of grass)
Grassed Swale
Forebay
Other
y (Y or N) OK
y (Y or N) OK
150 ft
n (Y or N) Show how flow is evenly distributed.
y (Y or N) OK
y (Y or N) OK
y (YorN) OK
y (Y or N) OK
3 f sec Insufficient inlet velocity unless energy dissipating devices are
being used.
n (Y or N) OK
n (Y or N) OK
y (Y or N) OK
1
0
0
Form SW401-Bioretention-Rev.8
June 25, 2010
Parts I and 11. Design Summary, Page 2 of 2

Permit No:
r (to be assigned by DWQ)
Ilb'REQUIRED 1T6MS'CHECKLIST7"<h.,r�'"�'I',n� •I�Irv' 1 „': .'_I t �,��� ,!.1 1 r ',,"il, „°7. �,�P � �t i4„ a;iivt r ,t7r:,f t:�G'',;'
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
CZ e20( 1. Plans (1' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
K CSOS 2. Plan details IV = 30' or larger) for the bioretention cell showing
C2D(
Cell dimensions
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
' - Indicate the P-Index between 10 and 30
3. Section view of the bioretention cell (1' = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
- Bioretention cell layers (ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
e13
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be In feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
situ soil must include:
- Soil permeability,
- Soil composition (%sand, %fines, %organic), and
C3 tJ A
P-index.
5. A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing:
61`1116.)
- A variety of suitable species,
CA
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
e3DI -%sue 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the
sal �.r) entire drainage area is stabilized.
12 f6 ik 7. The supporting calculations (including underdrain calculations, if applicable).
cz l 8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
P klA— 9. A copy of the deed restriction,
Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1

Permit Numbers-" (2,116 r)
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
- Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
- Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
- Heavy equipment will NEVER be driven over the bioretention cell.
- Special care will be taken to prevent sediment from entering the bioretention cell.
- Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How 1 will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3
Page 1 of 4

BMP element:
The pretreatment area
The bioretention cell:
vegetation
The bioretention cell:
soils and mulch
Flow is bypassing
pretreatment area and/or
gullies have formed.
Sediment has accumulated to
a depth greater than three
inches.
Erosion has occurred.
Weeds are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Tree stakes/wires are present
six months after planting.
Mulch is breaking down or
has floated away.
Soils and/or mulch are
clogged with sediment.
An annual soil test shows that
pH has dropped or heavy
metals have accumulated in
the soil media.
How I will remediate the problem:
Regrade if necessary to route all
flow to the pretreatment area.
Restabilize the area after grading.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
restabilize the pretreatment area.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand.
Prune according to best professional
practices.
Determine the source of the
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Remove tree stake/wires (which
can kill the tree if not removed).
Spot mulch if there are only random
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Determine the extent of the clogging
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
Dolomitic lime shall be applied as
recommended per the soil test and
toxic soils shall be removed,
disposed of properly and replaced
with new IP anting media.
Form SW401-Bioretention O&M-Rev.3 Page 2 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
1 acknowledge and agree by my signature below that I am responsible for the
performance of the 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.
Project name:NC-PEM-4002
BMP drainage area number:Area 2
Print name:Thomas D. Wortham
Title:Sr. VP of Business and Architectural Development
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, f11 FDA W 141,1,35 f N , a Notary Public for the State of
—FN , County of V—N (0 K , do hereby certify that
T1nov na S �• WO V-A�jwt personally appeared before me this 3
day of,;(kjrdAaA 2DG , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
`s``�Nuutttr,
srae <
hreOF
NOTMV
sue
���nnnN
SEAL
My Commission Exptres
My commission expires March 6, 2016
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4

®ENR-FRO
DEC 17 2012
®WOAVA
NC ENR
Permit No.51_/4I ZI O
fro be provided by DWD)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This turn must bu filled oil, pr/nlud and submilled.
The Required (terns Checklist (Pan 111) must be printed filled our and submitted along garb all of file required information.
I. PROJECT INFORMATION '
Project name TheHollingsworth Companies - Project NC-PEM-4005
Contact person Chad Brown
Phone number
Date
Drainage area number
865671.2281
7n 012012
Area 1 (which will be overdetaining to make up for Area 3)
pp W AT, OaH19 h � �
s
It. DESIGN INFORMATION
Site Characteristics
Drainage area
710,000 ft'
Impervious area, post -development
130,680 d'
%impervious
18.41 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required it,
Volume provided It,
Storage Volume: SA Waters
1.5- runoff volume
19,525 it'
Pre -development 1-yr, 24-hr runoff
8,965 ffa
Post -development 1-yr, 24-hr runoff
39,445 fO
Minimum volume required
30 480 ff3
Volume provided 36,500 fl'
Peak Flow Calculations
Is the pre/post control of the tyr 24hr storm peak flow required?
Y (Y or N)
1-yr, 24-hr rainfall depth
3.0 in
Rational C, pre -development
0.35 (unidess)
Rational C, post -development
0,65 limitless)
Rainfall intensity: 1-yr, 24-hr storm
3.03 in/hr
OK
Pre -development 1-yr, 24-hr peak flow
4.80 ft�lsec
Post -development 1-yr, 24-hr peak flaw
15.30 ft�lsec
PrelPost 1-yr, 24-hr peak flaw control
10.50 fetsec
Elevations
Temporary pool elevation
158.50 fmsl
Permanent pool elevation
155,50 fmsl
SHWT elevation (approx. at the perm. peal elevation)
155,00 fmsl
Top of 10ft vegetated shelf elevation
156.00 fmsl
Bottom of 1 Oft vegetated shelf elevation
155.00 fmsl
Data not needed for calculation option pt, but OK if provided.
Sediment cleanout, top elevation (bottom of pond)
153.00 first
Sediment cteanout, bottom elevation
152.00 fmsl
Data not needed for calculation option p1, but OK if provided.
Sediment storage provided
1.00 fl
Is there additional volume stored above the state -required temp. pool?
Y (Y or N)
Elevation of the top of the additional volume
158.5 thrst
OK
Form SW401-War Dotention Basin-ROV.a-4118r12 Parts I. a h Design Summary, Page 1 of 2

Permit
(m be pmvidetl Oy DWO)
II. DESIGN INFORMATION
Surface Areas
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, A,,,,, ,
Area, bottom of 1011 vegetated shell, Ai
Area, sediment cleanout, top elevation (bottom of pond), A,o.
Volumes
Volume, temporary pool
Volume, permanent pool, Vp,,,i,o
Volume, forebay (sum of forebays if more than one forebay)
Forebay %of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
MountainlPiedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, Voia,,_po,
Area provided, permanent pool, A e r�
Average depth calculated
Average depth used in SAIDA, it., (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, An,,,,,
Area, bottom of 10ft vegetated shelf, A..,
22,000 ft'
10,650 ff1
1.50 (unidess)
12,500 ft' OK
5,600 ft'
2,800 ft'
36,500 T' OK
22,050 ft'
4.850 ft'
22.0 % % OK
90 %
N (Y or N)
Y (Y or N)
1.50 (unidess)
Y (Y or N)
22,050 tt'
12,500 fe
3,00 it
3.0 It
N (Y or N)
12,500 If
5,600 ff1
Area, sediment cleanout, top elevation (bottom of pond), Aw.ya,a
2,800 it'
"Depth' (distance b/w bottom of 1 Oft shelf and top of sediment)
2.00 It
Average depth calculated
It
Average depth used in SAIDA, d_ (Round to down to nearest 0.5f0
IT
Drawdown Calculations
Drawdown through orifice?
Diameter of orifice (if circular)
Area of orifice (if -non -circular)
Coefficient of discharge (Ce)
Driving head (Ho)
Drawdown through weir?
Weir type
Coefficient of discharge(C.)
Length of weir (L)
Driving head (H)
Pre -development 1-yr, 24-hr peak Flow
Post -development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of Towpath to width ra0o
Length to width ratio
Trash rack for overflow & office?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all mnoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
Y (Y or N)
2.80 in
in'
0.60 (unidess)
0,67 it
N (Y or N)
(unidess)
(unitless)
it
it
4.80 d'Ises
15.30 111
0.12 ft/sec
3.50 days
4 :1
10 :1
10.0 ft
4 :1
4.0 :1
Y (Y or N)
1.0It
N (Y or N)
(Y or N)
(Y or N)
OK
OK
OK, draws down in 2-5 days.
OK
OK
OK
OK
OK
OK
OK
OK
Form SW401-Wet Detention Basin-Rev.94118112 fans I. & II. Design Summary, Page 2 of 2

.
.. _ DWQ.USE -ONLY . .,.11 .. - . . ,,.. . .... I.
Date Received
Fee Paid
Permit Number
3J
2
SzsS
Applicable Rules:
(select all that apply)
❑ coastal SW -1995 ❑ Coastal SW - 2008 El Ph II - Post Construction
Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina �y
Department of Environment and Natural Resources ®ENR-F'''s
Division of Water Quality
NOV 3 0 zL'.t
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
�,AI�
This form may be photocopied for use as an original YYYY
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
NC-PEM-VR-'-- gdbS.
2. Location of Project (street address):
Corner of Comtech Drive (SR 1676) and Deep Branch Road (SR 1339)
City:Pembroke County:Robeson Zip:28372
3. Directions to project (from nearest major intersection):
6000 feet south west of the intersection of Comtech Drive and
Country Club Road (NC 711) r
4. Latitude:34° 38' 34" N Longitude:-79° 10' 6" W of the main entrance to the project.
II. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ®New ❑Modification ❑ Renewal w/ Modifications
tRenewals with modifications also requires SWU-102 - Renewal Application Form
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) and the status of
construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 8.1 ac of Disturbed Area
❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
Is the project located within 5 miles of a public airport? PqNo UYes
If yes, see S.L. 2012-200, Part Vl: htti2://12ortal,ncdenr.org/web/wq/ws/sLi/"statesw/rules laws
Form SWU-101 Version 06Aug2012 Page I of

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the proiect):
Applicant/Organization:Concept Developments Inc
Signing Official & Title:loe Hollingsworth
b.Contact information for person listed in item I above:
Street Address:Two Centre Plaza
City:Clinton State:TN Zip:37716
Mailing Address (if applicable):same
City:
Phone: (865 ) 457-3600
Email:[e-mail]
State: Zip:
Fax: (865 ) 457-5476
c. Please check the appropriate box. The applicant listed above is:
❑ The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
® Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner
Signing Official
b.Contact information for person listed in item 2a above:
Street Address:PO Box 70
City:Pembroke State:NCZip:28372
Mailing Address (if
Phone: (910 ) 522-9944 Fax: ( 910 ) 522-9945
3. a. (Optional) Print the name and title of another contact such as the projects construction supervisor or other
person who can answer questions about the project:
Other Contact Person/Organization: Concept Developments Inc
Signing Official & Title:Tom Wortham, Sr. VP of Architecture and Business Development
b.Contact information for person listed in item 3a above:
Mailing Address:Two Centre Plaza
City:Clinton State.:TN Zip:37716
Phone: (865 ) 457-3600 Fax: (865 ) 457-5476
Email:[e-mail]
4. Local jurisdiction for building permits: Robeson County
Point of Contact: Building and Saftey Code Enforcement Phone If: (910 ) 671-3474
Form SWU-101 Version 06Aug2012 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
The majority of the site will be treated in a Wet Detention Basin. The remainder of the site will be treated in a
Dry Detention Basin and grassed roadside swales.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Lumber River basin.
4. Total Property Area: 17.69 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area':17.69 acres
'total project area shall be calculated to exclude the following the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 22 9
9. How many drainage areas does the project have?3 (For high densihj, count 1 for each proposed engineered
stornuvater BMP. For low densihj and other projects, use 1 for the whole properhj area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four 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 1
Drainage Area 2
Drainage Area 3
Drainage Area _
Receiving Stream Name
Lumber River
Lumber River
Lumber River
Stream Class *
13;Sw,HQW
B;Sw,HQW
B;Sw,I-IQW
Stream Index Number *
14-(;R7 q.
14-f]Tf �/,
14- N.S
Total Drainage Area (so
278,800
61,000
430,775
On -site Drainage Area (so
278,800
61,000
430,775
Off -site Drainage Area (so
0
0
0
Proposed Impervious Area' (so
87,100
21,800
65,350
% Impervious Area*` total
31 %
35%
15%
Impervious— Surface Area
Draina e Area 1
Draina a Area 2
Draina a Area 3
Draina a Area _
On -site Buildings/Lots (so
65,350
1,200
65,350
On -site Streets (so
7,900
5,100
0
On -site Parking (so
13,500
14,300
0
On -site Sidewalks (so
350
1,200
0
Other on -site (so
0
0
0
Future (so
0
0
0
Off -site (sf)
0
0
0
Existing BUA*** (so
0
0
0
Total (so:
87,100
21,800
65,350
* Stream Class and Index Number cat be determined at Inttp://portaLncdenr.org vebAvglpslcsu/classifications
* 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 06Aug2012 Page 3 of

'Report only that a count of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation. There are no off -site
drainage areas. The entire site is surrounded by grassed lines drainage swales
Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15.4 NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from http://portal.ncdenr.org/web/wq/ws/su/bmp-manual.
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. A detailed application instruction sheet and BMP
checklists are available from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. The complete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at http://porta1.ncdenr.org/web/wq/ws/su/mats.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package fromhttp://portal.ncdenr.org/web/wel/ws/su/statesw/forms does.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http://www.envhelp.org/pages/onestopexpress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1/2
mile radius on the map.
7. Sealed, signed and dated calculations (one copy).
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
I. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
I. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
Form SWU-101 Version 06Aug2012 Page 4 of 6

o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x1l" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifij the SHWT prior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: Page No:
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 21-1.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http://www.secretary.state.nc.us/Corporations/CSearch.aspx
VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http://portaimcdennorg/web/wq/ws/su/statesw/forms_docs. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 NC DWQ and that they will be recorded prior to the sale of any lot.
Vlll. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer:
Consulting Firm: Land Development Solutions
Mailing Address:310 Simmons Road, Suite K
City:Knoxville State:TN Zip:37922
Phone: (865 ) 671-2281
Email: rbaksa©LDStn.com
Fax: (865 ) 671-2283
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or hype mmne of person listed in Contact Information, item 2a) Ronnie Hunt certify that I
own the property identified in this permit application, and thus give permission to (print or hype name of person
listed in Contact Information, item 1a) Tom Worthmnl with (print or type name of organization listed in
Contact Information, item la) Concept Developments Inc to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SWU-101 Version 06Aug2012 Page 5 of 6

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment ofc vil penalties of up to ay, pursuant to NCGS 143-215.6.
11-15-12
I, Tamala S. Freeman , a Notary Public for the State of North Carolina County of
Robeson , do hereby certify that Ronnie Hunt personally appeared
before me this 15 day of November 2012 , and knowledge the
nowledgethe du ex tion of the application for
a stormwater permit. Witness my hand and official seal, \VV 1
',rrrrryryryry
�@ %oTAR) 9� o
a
i0 "UBLIC+ L+aa
�vOpcOU a+'�
ryrrr
X. APPLICANT'S CERTIFICATION
SEAL
My commission expires November 12, 2016
I, (print or hype nan{e of person listed in Contact Information, item Ia)
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 covenap�ill be rnord�{ and that the proposed project complies with the requirements of the
applicable stormw�tt�6r rd es yt �jE�r I5f CAC 2H .1000 and any other applicable state stormwater requirements.
I, sq-/VlVk.fir a Notary Public for the State of —7 7--1 County of
/K; rc':Y do hereby certify that LFSCO%1 � . LIir 4 iitJnr/L personally appeared
u
before me this / day of CC`Ld �PO J- and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal, \C ,f�LJt,
vxop-
arm
OF
TENNEGM
NWMY
FURX
Cw`' s s
SEAL
My Commission Expires
My commission expires March 6, 2016
Form SWU-101 Version 06Aug2012 Page 6 of

1,,, �, ,
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` �:' ,
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Permit No.
(lo he provided by DWQ)
ANCA
NCDENR
Project name
Contact person
Phone number
Date
Drainage area number
NOV 3 0 2012
Aw � a rF�,oG y
� r
O T
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
Drainage area
Impervious area, post -development
% impervious
Design minfall depth
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the prelpost control of the lyr 24hr storm peak Bow required?
1-yr. 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development l-yr, 24-hr peak Bow
Post -development 1-yr, 24-hr peak Bow
PrelPost 1-yr, 24-hr peak Bow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
Chad Brown
Area 1 (which will be overdetaining to make up for Area 3)
710,000 n'
130,680 ft'
1841 %
1.5 in
19,525 ft'
8,965 n'
39,445 fl'
30,480 ft'
36,500 ns
Y (Y or N)
3.0 in
0.35 (unifless)
0.65 (unilless)
3.03 irVhr OK
4.80 ft'/sec
15.30 ft/sec
10.50 ft'Isec
158.50 fmsl
155.50 fmsl
155.00 first
156.00 fmsl
155.00 first Data not needed for calculation option #1, but OK if provided.
153.00 fmsl
152.00 fmsl Data not needed for calculation option #1, but OK if provided.
1.0o it
Y (Y or N)
158.5 fmsl OK
Form SW401-Wet Detention Basin -Rev 9-4I18I12 Parts I. a II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWO)
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, A. _pw
Area, bottom of 1 Oft vegetated shelf, Aa a,al
Area, sediment cleanout, top elevation (bottom of pond), Asyy�
22,000 fit'
10,650 ft'
1.50 (unitless)
7,000 ft`
5,600 fit`
2,800 ft`
Volumes
Volume, temporary pool 36,500 fit'
Volume, permanent pool, V� _,,d 22,050 ft'
Volume, forebay (sum of forebays if more than one forebay) 4,850 ft'
Forebay %of permanent pool volume 22.0% %
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-21d)
Volume, permanent pool, Vraa-pw
Area provided, permanent pool, A� _,a 1
Average depth calculated
Average depth used in SAIDA, d, (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, Apw
Area, bottom of 10ft vegetated shelf, Aya u, it
90 %
N (Y or N)
Y (Y or N)
1.50 (unitless)
Y (Y or N)
22,050 ft'
7,000 ft`
3.00 ft
3.0 If
N (Y or N)
7,000 fit`
5,600 ff`
Area, sediment cleanout. top elevation (bottom of pond), Aw,v 2,800 112
'Depth' (distance btw bottom of 10ft shelf and top of sediment) 2.00 It
Average depth calculated ft
Average depth used in SAIDA, d.., (Round to doom to nearest 0.5ft) ft
Drawdown Calculations
Drawdown through orifice?
Diameter of orifice (if circular)
Area of orifice (if-noncimular)
Coefficient of discharge (CD)
Driving head (Ho)
Drawdown through weir?
Weir type
Coefficient of discharge (C.,.)
Length of weir (L)
Driving head (H)
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpalh to width ratio
Length to width ratio
Trash rack for overflow 8 orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate buildcut?
Drain mechanism for maintenance or emergencies is:
Y (Y or N)
2.80 in
in'
0.60 (unitless)
0.67 ft
N (Y or N)
(unitless)
(unitess)
ft
It
4.80 ft'Isec
15.30 fl'Isec
0.12 ft'/sec
3.50 days
4 :1
10 :1
10.0 ft
4 :1
4.0 :1
N (Y or N)
1.0 It
N (Y or N)
(Y or N)
(Y or N)
Insufficient permanent pool surface area
OK
OK
OK
OK
OK, draws down in 2-5 days.
OK
OK
OK
OK
OK
Trash rack or similar device recommended.
OK
OK
Peas I. & 11. Design Summary, Page 2 of 2
Form BW401-Wet Detention Basino-Rev 9-4/18112

Permit
(to be provided by DWQ)
IILrREQUIRED ITEMS CHECKLIST". '
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials
Sheet No.
C22I
1. Plans (1" - 50' or larger) of the entire site showing:
C3o I
- Design at ultimate build -out,
Cgot
- Off -site drainage (if applicable),
C$43
- Delineated drainage basins (include Rational C coefficient per basin),
C"
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
Cl3
eZor
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
C Soy
Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
CZ
N+l-s�
3. Section view of the wet detention basin (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
CSS
Cut
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
Cs0"/
on the plans prior to use as a wet detention basin.
C3
Alb 1.1
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay,
to verify volume provided.
c6
C3or
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
GSc3
entire drainage area is stabilized.
C3
"
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
9. A copy of the deed restrictions (if required).
R 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Part III. Required Items Checklist, Page 1 of 1

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
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. NOV 1 L
This system (check one): ®lfcl
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide time and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW40I-Wet Detention Basin O&M-Rev.4 Page 2 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
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 153 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 156 feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
ill in the blanks)
17
Permanent Pool Elevation 155.5
156 Pe maven Pool
-------------- Volume
Sediment Removal Elevation 153
Volume
155 ft Min.
--------------------------------
------
Sediment
Bottom Elevation 152
1-ft r
Storage
Sedimei
Storage
FOREBAY
MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the 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.
Project nome:NC-PEM-4002
BMP drainage area number:
Print name:Tom Wortham
Title:Sr. VP of Architecture and Business Development
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.
L_�A,V"A
a Notary Public for the State of
do hereby certify that
,Tye, Lt'9 r rrti� personally appeared before me this C�L
day of �C �o/a, and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My Commission Expires My commission expires March 6, 2016
Form SW40I-Wet Detention Basin O&M-Rev.4 Page 4 of 4

Permit No.
(to be provided by DWQ)
wATFgO`
.y� o2�F
`, STORMWATER MANAGEMENT PERMIT APPLICATION FORM o�<
14CDENR 401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all the required information.
IiVI,IOU fIG1.lVll
Phone number 865-671-2281
Dale 7110/2012
Drainage area number Area 2
IUD IINFORMATION a
Drainage area
Impervious area
% Impervious
Design rainfall depth
Peak Flow Calculations
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
PrelPost 1-yr, 24-hr peak control
Storage Volume: Non -SA Waters
Minimum required volume
Provided volume
Sediment storage volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum required volume
Provided volume
Sediment storage volume provided
Basin Design Parameters
Drawdown time
SHWT elevation
Basin bottom elevation
Storage elevation
Basin side slopes
Top elevation
Freeboard provided
Basin Bottom Dimensions
Basin length
Basin width
Length to width ratio
60,980.00 it'
20,470.00 it'
0.34
1.50 in
1.50 in DENR—FRO
0.15
(unitless)
NOV 3 0 2012
0.65
(unitless)
3.
0.60 60
ffIsec
ft'/s
DWQ
1.80
ft'Isec
1.20
ft'/sec
is
fit
ft'
2670,00 ft'
770.00 its
5390.00 ft'
4620.00 it'
4700.00 its OK
1,200.00 ff' OK
2.10
days
OK
154.00
fmsl
156.10
fmsl
OK
157.50
fmsl
4.0
:1
OK
158.50
fmsl
OK
1.00
it
OK
100.00 it
30.00 it
3.30 :1 OK
Fonn SW401-Dry Extended Detention Basin-Rev.3 Paris I. 8 II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
Additional Information
Total runoff volume captured by basin 1.50 ac-in Forebay is not required
Forebay provided N (Y or N)
Is basin in a recorded drainage easement? (Y or N)
Does basin capture all runoff at ultimate build -out? (Y or N)
Is a sediment depth indicator included? Y (Y or N) OK
Does the basin include a drain? Y (Y or N) OK
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I. a II. Design Summary, Page 2 of 2

Permit
(to be provided by DWQ)
III:'aREQUIRED`ITEMSCHECKLlST `` ``'' 1 "17
,
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials
Sheet No.
C' _
C2or
1. Plans (1" - 50' or larger) of the entire site showing:
C'So&
- Design at ultimate build -out,
65°6,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
C6
C zo r
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
C' 6b5
- Basin dimensions
- Pretreatment system,
- Maintenance access,
- Outlet structure,
- Overflow device,
- Flow distribution detail for basin inflow, and
- Vegetation specifications.
(�
A"
3. Section view of the basin (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
CQ
C 301
6. A construction sequence that shows how the dry detention basin will be protected from sediment until the
C3oz
entire drainage area is stabilized.
C
A±6I..
7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
9. A copy of the deed restrictions (if required).
L Y
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Dry Extended Detention Basin-Rev.3 Part III. Required Items Checklist, Page 1 of 1

®e0'R'r*®
DNN O
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Dry Extended Detention Basin
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, 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.
Important maintenance procedures:
— The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
— Immediately after the dry extended detention basin is established, the vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— No portion of the dry extended detention pond will be fertilized after the first
initial fertilization that is required to establish the vegetation.
— I will maintain the vegetation in and around the basin at a height of
approximately six inches.
— Once a year, a dam safety expert will inspect the embankment.
After the dry extended detention basin is established, it will be inspected once a quarter
and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in
a Coastal County). Records of operation and maintenance will be kept in a known set
location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the dry
Areas of bare soil and/or
Regrade the soil if necessary to
extended detention
erosive gullies have formed.
remove the gully, and then plant a
basin
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Form SW40I-Dry Detention O&M-Rev.3
Page 1 of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).—
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
(see diagram below),
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
spraying.
The main treatment area
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth
possible. Remove the sediment and
(see diagram below).
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Revegetate disturbed
areas immediately with sod
(preferred) or seed protected with
securely staked erosion mat.
Water is standing more than
Check outlet structure for clogging.
5 days after a storm event.
If it is a design issue, consult an
appropriate rofessional.
Weeds and noxious plants are
Remove the plants by hand or by
growing in the main
wiping them with pesticide (do not
treatment area.
spray).
Form SW401-Dry Detention O&M-Rev.3
Page 2 of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment.
immediately.
Grass cover is unhealthy or
Restore the health of the grass cover
eroding.
- consult a professional if necessary.
Signs of seepage on the
Consult a professional.
downstream face.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
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 basin depth reads 156.5 feet in the main pond, the sediment shall be removed.
When the basin depth reads N A feet in the forebay, the sediment shall be removed.
Sediment Removal E
Bottom
FOREBAY
BASIN DIAGRAM
(fill in the blanks)
Sediment
Storage
Temporary Pool Elevation 157.5
Pool emP orar
Sediment Removal Elevation 156.5 Volume
t- --------------------------- -- - - -----
Bottom Elevation 156.1 1 25%
MAIN POND
Form SW401-Dry Detention O&M-Rev3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the 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.
Project name:NC-PEM-4002
BMP drainage area
Print
Title:Sr. VP of Architecture and Business Development
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
County of IK14 & ( do hereby certify that
/ 6y n personally appeared before me this dl
day of QLC Y GsC l , wand acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal.
``s�P't W
,ltp
mue
OF
tenVRV
Piet
11unin0
SEAL
My Commission Expaes
My commission expires March 6, 2016
Form SW401-Dry Detention O&M-Rev3 Page 4 of 4

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