SW8020931_CURRENT PERMIT_20021213

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW v3 I
DOC TYPE
CURRENT PERMIT
'tJ PLANS
APPROVED
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

Michael F. Easley, Governor_
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, R.E., Director
Division of Water Quality
Wilmington Regional Office
._. _ December_13,.2002__-___ __._____._— __ __--
Mr. Robinson O. Everett, Partner
South College Associates
PO Box 586
Durham, NC 27702
Subject: Permit No. SWS 020931
Still Meadow Village Apartments Ph.2
High Density Stormwater Project
New Hanover County
Dear Mr. Everett:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Still Meadow Village Apartments Phase 2 on December 3, 2002. Staff review of
the plans and specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No.
SWS 020931 dated December 13, 2002, for the construction of Still Meadow Village Apartments
Phase 2.
This permit shall be effective from the date of issuance until December 13, 2012, 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
Noelle Lutheran, or me at [phone].
- -- - - - incerel�„ .
Rick Shiver
Water Quality Regional Supervisor
RSS/nml: S:1WQSISTORMWATIPERMIT1020931.DEC
cc: Jimmy Fentress, P.E.
Tony Roberts, New Hanover County Building Inspections
Beth E. Wetherill, New Hanover County Engineering
Division of Coastal Management
Noelle Lutheran
Wilmington Regional Office
Central Files
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone]
;A
NCDEt' R
Customer Service
800-623-7748

State Stormwater Management Systems _
T - - - - - - Permit No. SWS 020931
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
South College Associates
Still Meadow Village Apartments Phase 2
New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules) and the
approved stormwater management plans and specifications and other supporting data as attached
and on file with and approved by the Division of Water Quality and considered a part of this
pen -nit.
This permit shall be effective from the date of issuance until December 13, 2012, 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 on page 3 of this permit, the -Project Data Sheet. The stormwater control has
been designed to handle the runoff from 151,188 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 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. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.
2

` __ _ _: _.- _ _ • - - - State Stormwater iManagement Systems -
- Permit No. SWS 020931
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Still Meadow Village Apartments Phase 2
Permit Number:
--
Location:
New Hanover County "
Applicant:
Mr. Robinson O. Everett, Partner
Mailing Address:
South College Associates
PO Box 586
Durham, NC 27702
Application Date:
December 13, 2002
Receiving Stream/River Basin/Index #:
Cape Fear / Motts Creek
Classification of Water Body:
"C Sw"
Drainage Area, acres:
9.02
Total Impervious Surfaces, ft2:
151,188
Pond Depth, feet:
5
TSS removal efficiency:
90% (no filter is required)
Permanent Pool Elevation, FMSL:
19
Permitted Surface Area, ft':
14,783 @Permanent Pool
Permitted Storage Volume, ft3:
12,976
Temporary Storage Elevation, FMSL:
19.8
Controlling Orifice:
2" pipe (drawdown in 2-5 days)
Permitted Forebay Volume, ft3:
7,244
3

State Stormxvater_Management Systems
- - Permit No. S%V8 020931
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in it's entirety; vegetated and
operational for its intended use prior to the construction of any built -upon surface.
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 limes provide the operation and maintenance necessary -to assure - -- -
the permitted stormwater system functions at optimum efficiency. Tlie 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 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. Decorative spray fountains will not be allowed in the stormwater treatment system.
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.
7. 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. 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, or sale of the project area. The project area is
defined as all property owned by the permittee, for which Sedimentation and
Erosion Control Plan approval or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown. on the approved
plan.
4

State Stormwater Management.Sys tenis__
- Permit No. SW8 020931
_1.0. _ The pennittee shall submit final site layout and grading -plans for any permitted future
areas shown on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
11. 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.
12. Prior to the sale or lease of any portion of the property, the pennittee shall -notify DWQ -- -- --
and provide the name, Mailing address and phone number of the purchaser or leasee. An
access/maintenance easement to the stormwater facilities shall be granted in favor of the
pennittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The pennittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
14. 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.
15. The permittee must maintain the current permitted drainage area. No additional runoff
from outside of the permitted drainage area boundary may enter the permitted stormwater
facilities without first applying for and receiving a permit modification.
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit transfer request
must be submitted to the Division of Water Quality accompanied by an application fee,
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 Pennittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those
as may be required by this Division, such as the construction of additional or replacement
stormwater management systems.
5. The 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.

-- --- - State Storm\A�atffManagement Systems -
- Permit No. SW8 020931
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.
- - S; 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 days.
Permit issued this the 13th day of December, 2002.
N4an.
H CARO A NVIRONMENTAL MANAGEMENT COMMISSION
Klimek, P.E., Director
ivision of Water Quality
By Authority of the Environmental Management Commission

State Stormwater.Management Systems
Permit \o. SW8 020931
Still Meadow Village Apartments Phase 2
Stonnwater Permit No. SW8 020931
New Hanover County
Designer's Certification
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)
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 included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
--- — -- Date — -
SEAL
7

_State.Stonwkater Management Systems -- -
_ - - - Pemik No. SW8 0?093 ]
Certification Requirements:
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 bf
built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff
drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
S. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
Tony Roberts, New Hanover County Building Inspections

OFFICE' USE' ONLY
Date Received
lee. Paid
Permit Number
i State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This forrn may be photocopied 1or rise as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who awns the project):
South College Associates
2, Print Owner/Signing Official's narne and title (person legally responsible for facility and compliance):
Robinson 0. 'E,veret-t, Partner
3, Mailing Address for person listed in item 2 above:
P.O. Box 586
City: Durham State: NC Zip: 27702
"Telephone Nornber: ( 919 1 682-5691
4. Project Name (subdivision, facility, or establishment name - should be consistent with project narne on plans,
specific rtiorrs, ]otters, operation and rrraintenance agrer:mcrUs, etc.):
Still Meadow Village Apartments Phase 2
5. location of Project (street address):
Still Meadow Drive
City: Wilmington ---- — --- -�� County:
New Hanover
6. Directions to project (from nearest nrijor interscc(ion):
From intersection of US 421 and NC 132 ( Monkey Junction) north approximately
0.5 mile to Still Meadow Drive, property is located on the left.
7. Latitude: 34°8'46" N _ Lonl;itudc:__7.7033-'3-6"
8. Contact person who can answer questions about the lAroject:
Nairn;_ James H. Fentress, Jr. , P. E. _ Telephone Number: (910
11, PFRMIT INFORMATION:
1. Specil'y whether project is (check one): - X _New Renewal
Form SWU-101 Version 3.99 Pabc I of4
of project
815-0775
Modification

2. 1f this application is being submitted as the result or renewal or modification to an existing permit, list the
existing permit number .--------------__—.- ,---_-.- and its issue date (ifknown)__
3. 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 NPD1S Storrnwater
Information on required state permits can be ohtained by contacting the CUSCOnler Service Center at
1-877-623-6748.
Ili. PROJ17CT INFORMATION
In the space provided below, summarize how stornlwater will be treated. Also attach a detailed narrative
(one to two pages) describing stornlwater nlanagetnent for the project.
Storrnwater will be collected in on several drop inlets and curb inlets
and conveyed to the proposed detention pond for treatment and release.
2. Stortnw iter runoff from this project drains to the Cape Fear River basin.
� o
3. `Dotal Project Area: 9._Q2 acres 4. Project Built Upon Area: %
5. 1-1 ow many drainage areas does the project have?__1
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 sane format as below.
Basin Inforinatiorl
Drainage Area I
Drainage Area 2
Receiving Stream Name
Motts reek
Receiving Streani Class
CSW
Drainage Area
9.02 AC
Existing llnpervious" Area
0
Proposed Impervious"Area
a
% 1111perViOUs� Area (total)
lnlperVlOUS* Surface Ar'ca
Drainage Area 1
Drainage Area 2
On -site Buildings
48,316 SF
On -site Streels
On -site Parking
90,496 SF
On -site Sidewalks
12,376 SF
Other on -site
Off -site
Total:
Total:
Impervious area is deCned 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

7. How was the off -site impervious area listed above derived? N/A
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following 'italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -Upon area for each lot must be provided as an attachment.
I. The following covenants are intended to ensure ongoing compliance with stale stormwater management permit number
irs issued by the. Division of Water Quality. These covenants may not be
changed or deleted without the consent of the, State.
Z. No more than square feel of any lot shall he covered by structures or, impervious materials.
impervious nralcrials include asphalt, gravel, concrete, brick, sione, shale or shnilar nmlerial but do not include wood
decking or the water surface ofswimrning pools.
3. Swale.,; shall not be. filled in, piper!, or altered except as necessary to provide drivelvay crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater managerrrent permit modification prior to
construction.
5. All permitted rurrofffroor ouiparcels or future development shall be directed into the permitted stormwater control
system. These Connections to the sloralwater control system shall be performed in a manner lhat maintains the integrity
and performance of the systern 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 hinding on all parties and persons
claiming under there, that they will run with the land, that the required covenants cannot be changed or deleted
without concurre:ice 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 supplernc;nt forrn(s) listed below must he 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
Wet Detention Basin Supplement
Forni SWU-103
Infiltration Basin SUpplement
Form SWU-104
Low Density SUpplement
corm SWU-105
CUrb Outlet Systern Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench SUpplement
Form SWU-108
Neese River Basin Supplement
Form SWU-109
Innovative Best Management Practice SUpplement
Form SWU-101 Version 3.99 Page 3 ol'4

VI. SUBMITTAI. 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.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Ini 'als
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of Stormwater treatment/management
• Two copies of plans and specifications, including:
Development/Project name
Engineer and firm
Legend
North arrow
Scale
Revision number & clate
Mean high water line
Dimensioned property/project boundary
Location rnap with named streets or NCSR numbers
Original contours, proposed contours, spot elevations, finished floor elevations
Details of roads, drainage features, collection systems, and Stormwater control measures
Wetlands delineated, or a note on plans that none exist
Existing drainage (including off -site), drainage easements, pipe sires, runoff calculations
Drainage areas delineated
Vegetated buffers (where required)
VII. AGENTAUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): Stroud Engineering, P.A.
Mailing Address:--LO.2—D_rinetna Drive
City:___Wilmington State: NC 28403
.. Zip:__ �--�� - - ------_... _-
Phone: ( 910 ) 815-0775
VIII. APPLICANT'S CERTIFICATION
Fax: ( 910 ) 815-0593
1, (prirrl or type narrre of person listed in General Information, item 2) Robinson 0. 1 _*erett
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 requir cd deed restrictions
and protective covenants will he recorded, and that the proposed project complies with the requirements of 15A
NCAC 21-1 .1000.
Signature:
Form SWU-101 Version 3.99 Page 4 of 4
Date:_

Permit No.
' (rr, br• pansirlr•rt !>s' 1�6VQ)
State of' North Carolina
l pawent or Hnvironment nnd'Nhicnal Resources
IDivision oFWater Quality
S`1'0RMWATE:I: MANAGI MINT PEP MIT APPLICATION p'ORM
Wl:?T DETENTION BASIN SUPPLEMENT
This form army be pholocopird for usr.'ns an ori1;im11
1aWt) Storm�vatci�Mar�t�_�cmcnt_Plai� I�cv_ic�v:
A complele stormwater m,rnngement plan snbnlitt(li incicrdes an application form, a ,vet detention basin
supplement for cash basin, design calculations, and plans niul specilications showing; all basin and outlet
struchrre derails.
I. I'IZO.Il+C"I' INI,O1ZiViA'I'ION
Project Name- 5t_11_1 Meadow V:i_llrtre Ap_trCmenL_.. 1'llas_r 2
Contact Potion: JQmes�lt _�]_eni zc_s`�_.1r.._,T'.�;..:_. Phone Number: L910 1�815-0775
For ps'ojects with muhhoc hasins;, specify which basin this i',orlcs11cet applies to:
cicrnatiolu
Basin Bottom Elevation -Ml ta_ 0 _ f1. (flung' q the basin)
Permanent tool Wevatrurt _-l.,9_._ ft. (clr.v ario)a of fhu nr'i/i(.-r.,)
`1'cmpora1-y Pool l{lcv;rlian 19.80I•t. (cirvuliora r)/'llrc rlisr_•luar;f;c struclro•c nt�r�a flatr�)
Errors
Permanent Pool Surbec Arca__14, 783 ___ sq. fl, Raw), srrr-%rrce area rat the orifice clevalion)
Drainage Arcn —
9.02 _ ac. (wl-xilci'(tnd o%%s'ite rlrrrinage to !lice hasirr)
Impervious Area _'�ac. (err-silve arul nl/=.ci1r rlrraiiiage to the ba.vin)
volarmmc.c
Permanent Pool Volume
39.997
cu. fl.
(corni)iriecl volrrntre of inahr ba,vim and f )rebay)
,rempornry i,00i Volume
12,976
_err. IL
(rolume detained above the permanent pool)
Forchay Volume
w 7.244
_ cu. ft.
(approxirrrrrtcly 20``%, (/f tout! vohr No
Other l)lll'l11!!L'tl'a',ti'
SA/DA 1
' 71_..__ _._._.
(.1' idilee area to (lraillage area ralin /i-oua DI'1I0 table)
Diameter ol,Oriiicc
�1�
in.
(2 to 7 da)) lumporars) pool Ebro -(!prom required)
Design R&nN]I
1-0
in.
Dcsig,n TSS l:cmov,il 2
90�_____
Y.
(rrlininnim S5% )•equirc'rl)
l-nrrn 8wt1-102 Rin, 1 99
1' n t, I or i

Foottlntcs:
t Wticn using the Division SA/DA tables, the correct SAMA ratio for permanent pool sizing should he compatcd basal upon the
actual inipervious'%, and prrnmriem prim depth. Lhien interpolationVuruld be employed to determine the correct value for non-
standard table entries.
' in the 20 coasmal counties, the requirement Ar a vct.',ct;nive liltcr Islay he waived irate wet detention basin is designed to provide
901%, TSS removal. The WDENR i mP manual pmAdcs design tables for Both S5`%, TSS removal and 90'%, TSS removal.
U. REQUm n rrEMS CHECKLIST
The Following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department elf' Environment, Health ,ind Natural hsources, February 1999) and Administrative Code
Section: 15 A NCAC 21-1 .100S.
iOIN! in the space provided to indicate the Wwing clesign requirements have been inet and supporting
documentation is attached, if the appheant has designated in ngent in the Stormwater Management Permit
Application Fort , the agent nuty initial below. if a requircnient has not Been met, attach justification.
Applicants Initials
_ Il.
d.
..i
'Ric pennanenl pool depth N between 3 and 6 f'ect (required inhimum on feet).
The 1`0'eb,ly volunIc is approximately equal to 20"/I ol'the basin volinne.
The temporary pool controls runoff front the'd6sif;11 storm event.
The temporary pool draws down in 2 to Ways.
11-required, a 304bot vc:f.*,ctative liltcr is.provided at the outlet (include non -erosive now
calculations)
The h:isin length to width ratio is gro ler flian 3:1.
The basin side slopes above Elie permanent pool arc no sleeper ihnn 3: l .
A subinerged and velgetnted perimeter shelf with a slope of 6:1 or less (show det;til).
Vegetative cover above the pennancnl pool elevation is specified,
A trash rack or similar device is provided Cor both the overflow and orifice.
A recorded dr 6nape casement is providell For each basin including access to nearest r'igllt-
o C-way.
I. ll'the basin is used for sediment and erosion conlrol during construction, clean out of the
basin is .spedf led prier to use an a wet detention basin.
in. A inechanism is specified which will dfaitl the basin for maintenance or;ul cnlcrgcncy.
111. WET I)E'I'il1\1110134 BASIN OI'lsl--ZATiON FIND MAIN'I'ENANCIa AGR1'si+,MEWl'
The wet detention basin SyStcnl is defined as the wet detentioirbasin, pretrcntnlcnl including' forebays and the
vegetated 1`11ter if one is provided.
This system (cheek olrc) 0 does ,does not inenyoode a veRetated filter nt the outlet.
This system (ch,vk ono , does YEdoes not ineorpornie preh•entrnent ofher than a forebay.
1'ortll SWU-1t12 Rev T.99
Pate 2 of -I

Maintenance activities slulll be perf'ortned ns follows:
1. After every signi%ml nmofr wmWcing rainl U event 4ind at lust monthly:
a, Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b, Check and clear the orif ice or any obstructions such that drawdown or the temporary pool occurs within
2 to 5 days Its designed.
2. Repair eroded areas tlnniedialely, re-sced as necessary to maintain good vegetative cover, mow vegetative
cover to mAnadn a maximum height or six inches, and:rcinove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, ripr,.tp, etc.) quarterly to maintain
proper functioning.
A Remove accumulated sediment from the wet d(;feAN basin system semi-annually or when depth is
reduced to 7511 of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate mnnner and shnll 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 delerrnine the sediment elcvalion AT he such that it will give an accurate
depth reading and nol readily penetrate into accumulated sediments.
When the pern anent pool depth rends 3- 75 _ (Out in the main pond, the sediment shall be removed.
When the permtutent pool depth roofs 3' 75_ feet in the torebay, the sediment shall be removed.
V
Serlimcnt Rea nv:1t ]:I. 15 — 2_5 75
flottotn file-+;ttinn--L4_ -
FOREBAY
BASIN DIAGRAM
(Ji11 rrt I/w Hanks) ,
PCrl11:1lie ill tool t�-'levatioil 19
Sedimcat Renuiva] Llevation 1.5. 25
--------------------- ----------------------14
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ANUN POND
5. ]remove cattails and either indii,cnous wetland plants wlicn they cover 50110 of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
G. 1f the basin must he drtlined IC)I' an emclyncy or to perform -maintenance, the flushing; orsediment through
the emergency drain shall be InInlMAd to 111C rnaXiniUnl extent pr,ICGC,Il,
Morin SMVU-102 Rw 5,09 11:1L.,e 3 nl'd

7. All components of the wet detention basin system sliall 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 DW,Q of any problems with the system or prior to any
changes to the system or responsible party.
Print name: Robinson 0. -Everett
Title: Partner
Address: P.O. Box 586, Durham, NC 27702
Phone: [phone]
Signature:
Datc: G�
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 mubdivision has been named the president.
i, I�rohGeSeA ILA r►lS a Notary Public for the State of
County of do hereby certify that Root 1,son
personalty appeared before me this 11 t, day of Seo l-em be n2002, , and acknowledge the due
execution of the forgoing wet detention basin maintenance requiremetits. Witness my hand and official seal,
SEAT..
My commission expires Olt'}06& 3
Avo5
Form SWIJ-102 Rev 3.99 Page 4 of 4
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