SW8000635_CURRENT PERMIT_20001027

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE c2=4�)�/�a, %
YYYYMMDD

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretar-N,
Division of Water Quality
October 27, 2000
Mr. T..). Heile, President
T.J. Associates, Limited Partnership
1021 Hargett Street
Jacksonville, NC 28540
Subject: Permit No. SW8 000635
The Commerce Center @Riverside
High Density Stormwater Project
Onslow County
Dear Mr. I-Ieile:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for The
Commerce Center @Riverside on October 10, 2000. Staff review of the plans and specifications has determined
that the project, as proposed; will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000.
We are forwardiml Permit No. SW8 000635 dated October 27, 2000, for the construction of The Commerce Center
wRiverside. 4
This permit shall be effective from the date of issuance until October 27, 2010, 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 pans. requirements, or limitations contained in this permit are unacceptable. you have the right to request an
adj udicatory 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 Hcarings; P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and bindin<(.
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
1\'SS/arl: S:IWQSISTORMWATIPERMIT1000635.00T
cc: .Timmy Fentress, P.E.
Mitchell Parker, Onslow County Inspections
Linda Lewis
Wilminuton Reuional Office
Central Files
127 Cardinal Dr. Ext.. %Vilmington. Forth Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%, recycled/1011/4 post -consumer paper

State Stormwater Management Systems
Permit No. SW8 000635
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
T.J. Associates, Limited Partnership
The Commerce Center r@Riverside
Onslow County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC
2H .1000 (hereafter referred to as the "stormwater rules") and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water Quality.
and considered a part of this permit.
This permit shall be effective from the date of issuance until October 27, 2010 and shall be subject to the following
specified conditions and limitations:
1. DESIGN STANDARDS
I. 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
127,142 square feet of impervious area. This pond must be operated with a vegetated filter.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per
approved plans.
The runoff from all onsite and offsite built -upon area permitted with this project must be directed into the
permitted stormwater control system.
2

State Stormwater Management Systems
Permit No. SW8 000635
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
The Commerce Center @Riverside
Application Date:
Name of Receiving Stream/Index ##:
Classification of Water Body:
If Class SA, chloride sampling results
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Drainage Area; acres:
Total Impervious Surfaces, ft2:
Offsite Area entering Pond, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft':
Required Storage Volume, ft3:
Provided Storage Volume, ft3:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
SW8 000635
Onslow County
Mr. T.J. Heile, President
T.J. Associates, Limited Partnership
1021 Hargett Street
Jacksonville, NC 28540
October 10, 2000
New River / (WHO 19-10.5)
"SB I-IQW NSW"
n/a
6
3
4.87
127,142
22,406, per Engineer
5,509
5,540
10,420
10,430
4.6
1.5"� pipe
3

State Stormwater Management Systems
Permit No. S%V8 000635
I1. SC14EDULE OF COMPLIANCE
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 times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must
be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited
to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
h. The vegetated filter will be kept grassed with no erosion. The spreader mechanism will be kept free
of sediment and trash, and must distribute the runoff evenly over the width of the filter.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel
of D WQ. The records will indicate the date, activity, name of person performing the work and what actions
were taken.
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
speci I cations, and other supporting data.
7. Upon compleiion 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.
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. A modification must be permitted prior to any construction. The following items will require a modification
to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of the project area. The project area is defined as all property
owned by the permittee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
10. The Director may determine that other revisions to the project should require a modification to the permit.
Cl

State Stormwater Management Systems
Permit No. SW8 000635
] l . 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 of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the pezmittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittec is responsible for,verifying that the proposed built -upon area does not exceed the allowable
built -upon area.
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 shall notify the Division of any name, ownership or mailing address changes within 30 days
I11. 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 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,
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute
143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules,
regulations, or ordinances which may be imposed by other government agencies (local, state; and federal)
which have jurisdiction.
4. In .the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions,
the Permittee shall take immediate corrective action, including those as may be required by this Division;
such as the construction of additional or replacement stormwater management systems.
The permittee grants DENR Staff permission to enter the property 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.
Permit issued this the 27th day of October, 2000.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, -Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 000635

State Storrnwater Management Systems
Permit No. SW8 000635
The Commerce Center @Riverside
Stormwater Permit No. SWS 000635
Onslow County
Designer's Certification
1, as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of
the project,
for (Project Owner) hereby state that, to the best of my abilities, due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
n

State Stormwater Management Systems
Permit No. SW8 000635
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 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.
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, Onslow County Building Inspector
7

Date Received
Fee Paid
Permit Number
-ao
a.0. ✓ (�U77�
CSO 31
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be phorocopled For use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the, n9me of the corporation, individual, etc. who owns the project):
T.J. Associates Limited Partnership
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance)
T-.J. Hiehle. President
3. Mailing Address far person listed in item 2 above
102, -Hargett Street
City: Jacksonville State: N.C. Zip: 28540
Telephone Number: ( 910 } 353-� 58 .'
h. Project Name (subdivision, facility, or establishment name - should he consistent with project name on plans,
specifications, letters, operation and maintenance agreements. etc.):
The Commerce Center @ Riverside
5. Location of Project (strrct address):
Old Bridge St.
City: Jacksonville County: Onslow
G. Directions to projecl. (from nearest major intersection):
1200 ft. West on NCSR 1402 from the intersection of US HWY 17 and NCSR 1402
7, Latitude: 340 45' 03" North
Longitude: 770 26' 12" West
of project
S. Contact person who can answer questions about the project:
Name: T.J. Hiehle Telephone Number: ( 91Q ) 'A53-3558
II. PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99
Page 1 of 4

2- If this application is being submitted as the rusull. of a renewal or modit'icaliorl 10 all (,Xisl ing peryllil, HsL Ihe
existing permit number N/A and its issue, date (if known)
3. Sl)ecil'y the type 0I'I)l'0j0CL (check one-):
Low Density X High Density Redevelop Conerni Permit Wier
is
4. Additional Project Rcquircnionts, (chockapplicahle blanks):
LAMA M,,ijo'r X Sedlimerilation/Erosion Control 404/401 Permit. NPDES StormwaLor
information on required state permits can be obtained by contacting the Customer Service Ct,ntcr at
1-877-623-6748.
Ill. PROJECT INFORMATION
1. In the space provided hplow'sunilmirize flow slormwnt.er will he Ireated. Also attach a detailed riarr"'It.ive
(one to two pages) descrihingstormwaler managoillent. for the project.
Storm aLar—will be vollepted
a PiDe syst em.
2. Stormwater rimol'l'f'rom this project drains to Lhe Wait.: Oak River hnsin.
3. Total Project Area: 4.87- 2crf!.1; 4. Project Buill Upon Area: 60
5. How many drailingo arms dofrs if)(' project have? 1
G. C0l1-q)l('LC the l'olloWilif., intortlinlioll for each draillago ' area. ll'there are more Ulan Iwo drainage arms in the
pl'ojcCL, ;AltMil ',In ilddiliOrMIS110CA with the information for each area provided in 1110 1,ari)e form;Ans below.
Basin information
`A"IL' �:
11 9CA re,
[1 Arez-1:2
I Zeceiving, Stream Name
New River
RCcolvirig Stream Class
SB, HQW, NSW
Drainngc Aren
4.87 ac
E-'xislirig linpervimie,* Area
Proposed Impervious*Aron
127,142 sf
% Impervious* Amn (total)
-0 z
Impervious* Sur fare Area'.
)e Area .1
Area 2
Orl-SiLo Buildings
19274
O[I-sile Streets
On -site Parking;
76,608 sf
On -site. Sidewalks
8854 sf
Other on -site
22,406 sf.
To lag: 127, 142 sf
Total:
llnpervioflsarva is defirleflas the built 111)011 DI-V;1 including, but not lintited to, buildings. roads, parking ,ire
sidt-walks, gravel areas, etc.
Form SWU-101 Version 3.99 Vige 2 (it'll

® i
7. How was the off -site impervious area listed above derived.The above area was derived from
� ;
the amount of area to be built upon the adjacent tract as measured with t e computer.
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 huilt-upon area for each lot must be provided as an attachment.
The following covenants are intended to ensure ongoing compliance with state storrrrwater management permit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
No more than square feet of arty lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include worm
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.
Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff horn 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 covenaras 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 he recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement. form(s) listed below must be submitted for each
BMP specified for this project.. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability ol• these forms.
Form SWU-102
Wet Detention Basin Supplement.
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement.
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management. Practice Supplement.
Form SWU-101 Version 3.99 Page 3 of 4

Vt. 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 initialing in the space provided
next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $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): Stroud _Engineeriag,_P_A_
Mailing Address: 102--D Cinema Drive
City: Wilmington State: NC
Phone: ( 9 1cl ) 815-0775
VIII. APPLICANT'S CERTIFICATION
Zip: 28403
Fax: ( 91 0 ) 815-0593
I, (print or type name ofperson lister! in General Information, item 2) T. J. Hi ehl e
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will he constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that. the proposed project complies with the requirements of 15A
NCAC 2H .1000.
Signature:
T.J. Ass'C teg,
T.J. Associates,
by T.J. Hiehle,
Limited Partnership
Inc.; General Partner
President
Date: 61110 CD
Morin SWU-101 Version .1.99 Page 4 of 4

(to Le proriderl bY DW&
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STOPx WATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be pholocopicrl for use as an original
I2WQ Slormwatcr Mallnwenlent 131,111_Rcview:
A complete stormwater lnanagcimnt 1)1a11 submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin arid outlet
structure details.
1. PRO,7 cr INFORNIA,mON
Project Name: The Commerce CenCer @ Riverside
Contact Person: r 1 Hiehl e Phone Number: L 910)_ 353-3558
For projects with rllultiple basins, specify which basin this workshcet applies to: N/A
elevations
Basin Bottom Elevation -3. 0 ft. (floor of rice basin)
Permanent Pool Elevation 3 ft. (elevation of'fhe orifice)
Temporary Pool Elevation .4.6 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 5540 sq. ft. (water sttrface area at the orifice elevation)
Drainage Area 4.87 ac. (ore-.sife (ntl off -site drainage to the basin)
Impervious Area 2.92 ac. (on -.cite and offsite drainage to the basin)
volcurtes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters .
SA/DA t
Diameter of Orifice
Design Rainfall
Design TSS Removal'
10,756
cu. ft
10,430
clr. ft
2,127
c11. ft
2.6
1.5
85 %
(combined volume of main basin and forebay)
(volume detained above the permanent pool)
(approximately 20%,of total volume)
(sitrfcrce area to drainage area ratio from DWQ table)
(2 to 5 day temporary pool draw -down required)
(rniuimurn 85% required)
!`oral SWU-102 Rev 3.99 P-ne 1 of 4

Footnotes: j){� iIfi
t When using the Division SA/DA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon theiil�+�
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non- i 1sa
standard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
II. REQUIRED ITEMS CHECKLIST
}
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
N.C. Department of Environment, Health and Natural Resources, February 1999 and Administrative Code
Section: 15 A NCAC 2H .1008. iE
Initial in the space provided to indicate the following design requirements have been met and supporting I.:!
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.
Applica is Initials
r a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
b. The forebay volume is approximately equal to 20% of the basin volume.
414 c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1..
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified. iij .
j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of -way. q '
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.'
m. A mechanism is specified which will drain the basin for maintenance or an emergency. fl
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 6 does 0 does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does 0 does not incorporate pretreatment other than a forebay
Form SWU-102 Rev 3.99
Page 2 of 4
I

Maintenance activities shall be performed as follows:
1. After every significant runoff producirlg rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment acCUmUlati0n, 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, snow vegetative
cover to maintain a inaxitnuin height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basin,, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
11. IZCm{?VC accumulated sediment from the wet detention basin systenl ,C1111-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 seditnetlt elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumblated sediments.
When the permanent pool depth reads 4.5 . feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 3 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
Uill in the blanks)
Perinnneill Pool Eleva ioll 3.0
SCdiITIC nt Re oval 1.1. 0 �75 o .
------------ Sediment Removal Elevation —1. 5 75%
Bottom Ele ration -1 - - %--------- -----------------------------------------
Bottom Elevations 3, 0 25°I°
FOREBAY IVIACN PONY) j
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'sedinient
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 � Page 3 of 4

7.' All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that 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: T.J. Hiehle
Title: __Pres'dent, 7.J. Associates Inc. -,-
Address: 1021 Hargett Street Jacksonyille,_K 28540
Phone:. (mil 37- 584E
Signature:�r
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
I, , a Notary Public for the State of _00r_ _,�
County of _ L ei do w , do hereby certify that 7 .oS L4 e _k3 10
personally appeared before me this S ~ day of J&A_,Q�,. , �QQQ, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
N0TAPVP
4a...
OV130C,
SEAL
My commission expires / 1 -3 0 - 12, 00)3
Form SWU-102 Rev 3.99 Page 4 of 4