SW8021013_CURRENT PERMIT_20021216

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW l9m
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

W--
--`pia QG
r
Ms. Joy Cranidiotis
1008 Thistle Downs SE
Leland, NC 28451
Dear Ms. Cranidiotis:
- -Michael F. Easley, Governor -
- -- William G. Ross,'Jr., Secretary
_North -Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
- Division of Water Quality
_ -- - Wilmington Regional Office-' _
December 16, 2002
Subjcct: Permit No. SW8 021013
Belville Point Office Park
High Density Stormwater Project
Brunswick County
The Wilmington Regional Office received a complete Stonnwater Management Permit
Application for Belville Point Office Park on October 8, 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 211.1000. We are forwarding Permit No. SW8 021013
dated December 16, 2002, for the construction of Belville Point Office Park.
This permit shall be effective from the date of issuance until December 16, 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 fonn of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and: filed with the Office of Administrative
Hearings, P.O. Drawer 27447, Raleigh, NC 27611'-7447. Unless such demands are made this
permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact
Linda Lewis, or me at [phone].
- -- � - Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:1WQSISTORMWATIPERMIT1021013.DEC
cc: Joseph Hill, P.E.
Delaney Aycock, Brunswick County Building Inspections
Linda Lewis
Wilmington Regional Office
Central Files
NCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-523-7748

- - -- - - - ---- - State Stonr�water lvlanaaement Svstems -
Permit No. SWS 021013-
STATE OF NORTH CAROLINA
DEPARTMENT -OF ENVIRONMENT AND NATURAL RESOURCES- - -
DIVISION F:WATER QUALITY
STATE STOR1'IWATER 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
Ms. Joy Cranidiotis
Belville Point Office Park
Brunswick County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the
provisions of 15A NCAC 2H J000 (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 December 16, 2012, and shall be
subject to the following specified conditions and limitations:
1. 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 42,024 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
showin , 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 Management Systems
Permit No.-SW8 021013
- - - - — _ DIVISION -OF NV TER QUALITY -
PROJECT DESIGN
DATA SHEET
Project Name:
- - .Belville Point Office Park
Permit Number: _ .
---.SW8 021013
Location_
Brunswick County
Applicant:
Ms. Joy Cranidiotis
Mailing Address:
1008 Thistle Downs SE
Leland, NC 28451
Application Date:
October 8, 2002
Receiving Stream/River Basin:
Cape Fear / UT Brunswick River
Stream Index #:
CPF17 18-77
Classification of Water Body:
"SC"
Drainage Area, acres:
1.45
Onsite, ft2:
1.45
Offsite, ft2:
0
Total Impervious Surfaces, ft2:
42,024
Pond Depth, feet:
4'
TSS removal efficiency:
90% (no filter is required)
Permanent Pool Elevation, FMSL:
10
Permitted Surface Area, ft2:
5,895 `@Permanent Pool
Permitted Storage Volume, ft3:
5,043
Temporary Storage Elevation, FMSL:
10.8
Controlling Orifice:
0.75"cp pipe (drawdown in 2-5 days)
Permitfed'Forebay Volume, ft3:
3,578
I

- --- - - - - - - --- - .. - -- --- -
— - - State Stor nwater Maiiagement Systems
- Permit No. SWS 02-1013'
- - -- I1. SCHEDULE OF COMPLIANCE
1. The stornnvater 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 times provide the operation and maintenance necessary to assure
the permitted stonnwater system functions at optimum efficiency. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance must
occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of 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.
S. 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.
S. If the stormwater system was used as an Erosion Control device, it must be restored to
-- -- design condition prior to operation -as a stor nwater 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.
C. 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.
I

10
State Stormwater Management Systems
-Permit No.-SW8 021013
The permittee 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
Pennittee for a minimum of ten years from the date of the completion of construction.
12. Prior fo the sale or lease of any portion of the property, the permittee-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
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The permittee 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
1. This permit is not transferable. 1n 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. Th_c issuance of this permit does not preclude the Permittee from complying with any and
all statutes, riles.- iegulations, or ordiriarices which -maybe imposed by other government
agencies (local, state, and federal) which have jurisdiction.
4. to 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.
i

T - - - - State Stonnwater Managenent Svstems
- Permit No. SWS 021013 -:
7. Unless specified elsewhere, pennanent-seeding requirements for the stornwater 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 pennittee shall notify the Division any name; ownership or mailing address changes
within 30 days.
Permit issued this the 16th day of December, 2002.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
,t .i. nit.'
Alan W. Klimek, P.E., Director
—� Division of Water Quality
By Authority of the Environmental Management Commission
I

State Stormwater Management Systems
- - - Permit N6.-SW8 021013
Belville Point Office Park
Stonnwater-Permit-No SW8,021013-- - - -
Brunswick County
Designer's Certification
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,
(Prof ect)
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
--
SEAL
7

State Stonnwater Management Systems
Pen -nit No. SWS'021013
Certification Requirements:
Tlit 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.
The outlet/bypass structure elevations are per the approved plan.
5.
The outlet structure is located per the approved plans.
G.
Trash rack is provided on the outlet/bypass structure.
7.
All slopes are grassed with permanent vegetation.
8.
Vegetated slopes are no steeper than 3:1.
9.
The inlets are located per the approved plans and do 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
Delaney'Aycock, Brunswick County Building Inspections
I

it
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
.for Cranidiotis
2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and its compliance):
,1ov C'ranidiotis - Chrner/Develo ver
3. Mailing Address for person listed in item 2 above:
1008 Thistle Dolrirs .V
Cit}': Leland State: Y C' Zip: 28431
Telephone Number: (910)371- 4 50
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
BehWle Point Office Park
5. Location of Project (street address):
133
Cite: Belyille Count': Brrrtrsirick
6. Directions to project (from nearest major intersection):
S11' corner of -VC 133 am/,SR 1551 in Beeville
7. Latitude: 34014,581, 581, Longitude:. 77* 59' 20" of project
8. Contact person who can answer questions about the project:
Name: .1ov Crwlidiotis Telephone Number: [phone]
IL PERMIT INFORMATION:
1. Specifr whether project is (check one): _1` Ne-ty Renewal Modification
BPOP.Form SWU-101 Ver 3,99.doc Pagel of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known) !
3. Specify the type of project (check one):
Lon- Density .X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major _ - X Sedimentation/Erosion Control 404/401 Permit I NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748,
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to
two pages) describing stormwater management for the project.
Wet detention pond
2. Stormivater runoff from this project drains to the _ Cape Fear- _ River basin.
3. Total Project Area: 1.45 acres 4. Project Built Upon 67 %
5. How many drainage areas does the project have'? I
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area I
Drainage Area 2
Receiving Stream Name
U.T. Brunswick River
Receiving Stream Class
�r-$Ltr 5L
Drainage Area
63,184 SF
Existing Impervious" Area
O.OSF
Proposed Impervious* Area
42,024SF
Impervious* Area (Total)
67%
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -Site Buildings
7824
On -Site Streets
On -Site Parking
> 34,200
On -Site Sidewalks
Other On -site
Off -Site
Total: 41,014
Total:
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel
areas, etc.
BPOP.Form 5WU-101 ver 3.99.doc Page 2 of 4

7. How was the off -site impen ious area listed above derived`? Bit jj&jjg�.' - calculated fijnU scciled ineasm:�Ijients:
streets, parking, walks, - planimeter
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 ivith state stormwater 1?1C111Cr1.;ement pei-snit
number cis issued by the Division of ' Water OtralioJ These covenants may not be changed or
deleted without the consent of the State.
2. No more than square feet of the project area shall be covered by structures or impervious materials.
Impervious materia s include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include
wood decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification
prior to construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater
control system. These connections to the stormwater control system shall be performed in a manner that
maintains the integrity and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall
include all the applicable items required above, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP
specified for this project. Contact the Storwmater and General Permits Units at [phone] for the status and
availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU- l 07
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
nPORForm SWU-101 Ver 3.99.doc Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A
complete package includes all of the items listed below. The complete application package should be submitted
to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by signing your initials in the space
provided next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
- Legend
North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your behalf,
please complete this section:
Designated agent (individual or firm): Jose h S. Hill Jr. and Associates
Mailing Address: 1602 Harrow- Drive
City: Wilmilsgton _ State: N.C. Zip: 28401
Phone: [phone] FAX: (911,1)799-1 51
VIII. APPLICANT'S CERTIFICATION
(print or type name ofperson listed in General Information, item 2) .k)j, Cranidioti.s
, certify that the information included on this permit application form is, to the best of my knowledge. correct and that
the project will be constructed in conformance with the approved plans, that the required deed restrictions and
protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC
2<a.1000.
$ignatu
BPOPTorm SWU-l01 Ver 3.99.doc Page 4 of 4
Date:

Permit No. �1 6& to 13
(to be provided br DIT 01
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
1. PROJECT INFORMATION
Project Name: Belville Point Office Park
Contact Person: JoyC'ranidiotis Phone Number: [phone]
For projects with multiple basins, specify which basin this worksheet applies to: N/A
elevations
Basin Bottom Elevation 6.0' ft
Permanent Pool Elevation 10.0' ft.
(floor of the basin)
(elevation of the orifice)
Temporary Pool Elevation 10.8' ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 5,895 sq. ft. (water surface area at the orifice elevation)
Drainage Area 63,184 ac. (on -site and off -site drainage to the basin)
Impervious Area 41.024 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume 12,692 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 5,043 cu. ft. (volume detained above the permanent pool)
Forebay Volume 3,578 cu. ft. (approximately 20% of total volume)
Other parameters
SA/DA' 5.8 (sub face area to drainage area ratio. from DWQ table)
Diameter of Orifice 0.75 in. (2 to 5 day temporary pool draw -down required)
Design Rainfall 1.0 in.
Design TSS Removal2 90 % (minimum 85% required)
BPOP.Form SW U-102 Rev 3.99.b.doc Pagel of 4

Footnotes:
When using the division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon
the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct
value for non-standard table entries.
z In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to
provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS
removal.
lt. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C.
Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
plicants Initials
J.
k.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
The forebay volume is approximately equal to 20% of the basin volume.
The temporary pool controls runoff from the design storm event.
The temporary pool draws down in 2 to 5 days.
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
The basin length to width ratio greater than 3:1.
The basin side slopes above the permanent pool are no steeper than 3:1.
A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail)
Vegetative cover above the permanent pool elevation is specified.
A trash rack or similar device is provided for both the overflow and orifice.
A recorded drainage easement is provided for each basin including access to nearest right-of-
way.
If the basin is used for sediment and erosion control during construction, clean out of the basin
is specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
I1. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does does not
This system (check one) 0 does 0 does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
BPOP.Form SWU-102 Rev 3.99.b.doc Page 2 of

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e, catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 3.0 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 3.0 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
-dR
Permanent Pool Elevation 10.0'
Sediment
Bottom
El. 7.0'
60' 1/ 25%
Sediment Removal Elevation 7.0'
Bottom Elevation 60'
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
BPOP.Form SWU-102 Rev 3.99.b.doc Page 3 of 4

7. All components of the wet detention basin shall be maintained in good working order.
1 acknowledge and agree by my signature that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to
any changes to the system or responsible party.
Print Name: Jnv (.rcinidiotis_ __.___ _ __-
Title: flouter
Address
Phone:
Signature:
Date:
1008 Tlri stic Dotirrrs :SE _Lekirrcl, N(: 28451
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, I Sl'Yi.(`c a Notary Public for the State of _I1 uA (ako It na—,
County of i� , do hereby certify that i ��1 �ka n1 Gt1(�7_s
personally appeared before me this day of , "dnd acknowledge the
due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and
official seal,
SEA
My commission expires
BPOP.Form SWU-102 Rev 3.99.b.doc Page 4 of 4