SW8991141_CURRENT PERMIT_20010619

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

State of North Carolina
,Department of Environment
and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Dieision of Water .Quality
June 19, 2001
Mr. Fleming Gibson, President
Carolina Lodging Group, Inc.
351 Ocean Ridge Parkway SW
Ocean Isle Beach, NC 28469
Subject: Permit No. SW8 991141
Hampton Inn, Sunset Beach, NC
High Density Stormwater Project
Brunswick County
Dear Mr. Gibson:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Hampton
Inn, Sunset Beach, NC on June 7, 2001. 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. SW8 991141 dated .tune 19, 2001, for the construction of Hampton Inn, Sunset Beach, NC.
This permit shall be effective from the date of issuance until June 19, 2011, 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
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 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/sav: S:IWQSISTORMWATIPERMIT1991141-JUN
cc: Don Covil, P.E.
Larry Cook, Ocean Isle Beach Code Inspections
Scott Vinson
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50 recyeled/109/. post -consumer paper

State Stormwater N,lanauement Systems
Permit No. SVA'B 991 141
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
Carolina Lodging Group, Inc.
Ramplon Inn, Sunset Beach, NC
Brunsivick County
FOR THE
construction, operation and maintenance of a wet detention basin in compliance with the provisions of'] 5A NCAC
211 .1000 (hereafter referred to as the "nor mwater 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 June 19, 2011 and shall be subject to the following
specified conditions and limitations:
I. DESIGN STANDARDS
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 fi'om ..
203,425 square feet of impervious area.
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 built -upon area for the future development is limited to 136,778.
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 Svstems
Permit No. SW8 991 141
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: Hampton Inn. Sunset Beach, NC
Permit Number: SW8 991141
Location: Brunswick County
Applicant: Mr. Fleming Gibson, President
Mailing Address: Carolina Lodging Group, Inc.
351 Ocean Ridge Parkway SW
Ocean Isle Beach, NC 29469
Application Date: dune 7, 2001
Name of Receiving Stream/Index 9: Lumber I Shallotte River 115-25-2-(1)
Classification of Water Body: "C Sw HQW"
If Class SA, chloride sampling results:
Pond Depth, feet:
Permanent -Pool Elevation, FMSL:
Drainage Area, acres:
Total Impervious Surfaces, ft2:
Offsite/Outpareel ,Area entering Pond, W:
Required Surface Area, ftl:
Provided Surface Area, ft':
Required Storage Volume, ft':
Provided Storage Volume, ft':
Temporary Storage Elevation,-FMSL:
Controlling Orifice:
nla
37.00
8.72
203,425
136,778, per Engineer
17;684
51,210
16,839
18,333
37.35
2 X 1.75"� pipe
3

State Stormwater Management Systems
Permit No. SWS 991 141
II. SCHEDULE 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.
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.
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.
S. 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 modificati on
to the permit. The Director may determine that other revisions to the prQect should 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.
C. Further subdivision, acquisition, or sale ofthe 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. 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.
0

State Stormwater Management Systems
Permit No. SW8 991141
11. 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 pemitted amount, a modification
to the permit must be submitted and approved prior to 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 permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittee 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.
16. Deed restrictions must be recorded prior to the sale of any outparcel or future area shown on the approved
plans to ensure that future owners are made aware of the built -upon area limitations. The following
statements must be recorded:
a. "To ensure continued compliance with the NC Division of Water Quality Stormwater Management
Permit Regulations,15A NCAC 2H.I 000, the maximum built -upon area for outparcel(s) and future
areas shown on the approved plans is 136,778 square feet. This allotted amount includes any built -
upon area constructed within the property boundaries, and that portion of the right-of-way between
the lot lines and the edge of the pavement. Built upon area includes, but is not limited to, structures,
asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised,
open wood decking, or the water surface of swimming pools."
b. "The runoff from all built -upon area on the outparcel or future area must be directed into the
permitted stormwater control system."
C. 'Built -upon area in excess of the permitted amount will require a permit modification."
d. "The connection into the stormwater control shall be made such that short-circuiting of the system
does not occur."
IT A copy of the recorded deed restrictions with all statements as listed -above, must be submitted to the DWQ
within 30 days of the date of the recording. The recorded copy must be signed -by the permittee, dated,
stamped with the deed .book number and page, and bear the stamp/sea] of the Register of Deeds.
Ill. 'GENERAL -CONDITIONS
1. 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 maybe 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.
61

State Stori-riwater Managcment Systems
Permit No. SW8 901 141 '
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules,
re(,ulations. 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 19th day of June, 2001.
NORTI-I CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, Direc 4�
Division of Water -Quality
By Authority of the Environmental Management Commission
Permit Number SW8 991141
P

State Stormwater Management Systems
Permit No, SV+78 991 141
Hampton Inn, Sunset Beach, NC
Stormwater Permit No. SW8 991 141
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,
(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 Storm vvater Management Systems
Permit No. SWF 01 141
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 out]et/bypass structure elevations are per the approved plan.
S. 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.
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
Larry Cook, Ocean Isle Beach Code Inspections, Brunswick County Building Inspector

tJ:�l�4.. 4' } wk¢3'_ "fie „v �i.,,<tv._: 4.:.'x`'-' �...3ac:•,�.a r _'>'n"'�
Date Received
Fee Paid
Permit Number
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):
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Fleming Gibson
3. Mailing Address for person listed in item 2 above:
Ca M1 ing Lotiging , Gr ,_ Tnr•- , 31; 1_OcAan Ri r1ge Parkway SW
City. Ocean Isle Beach State: NC Zip: 28469
Telephone Number: [___ 910 } 287-1719
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Hampton Inn, Sunset Beach, NC
5. Location of Project (street address):
NC904
City: Ocean Isle Beach (n6.u4,,u4 Agbress) County: Brunswick
6. Directions to project (from nearest major intersection):
Proiect is on
7. Latitude: 3 3°5Fi' 15" N Longitude: 78°30' 00" W ' of project
8. Contact person who can answer questions about the project:
Name: Telephone Number _
1. Specify whether project is (check one): X New Renewal Modification
Form SWi!-101 Version 3.99 Page 1 of 4 OkIGINAL

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number _ nj�_ and its issue date (if known)
1
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 xSedimentation/Erosion Control �404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III: PROJECT INFORMATION
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 .
2. Stormwater runoff from this project drains to the Shallotte L River basin.
3. Total Project Area: 8.719 acres
3. How many drainage areas does the project have? 1
4. Project Built Upon Area: ' 53.6 %
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.
y..
Receiving Stream Name
Ditch draining to S
Receiving Stream CIass
-CM HCU
Drainage Area
8.719 ac.
Existing Impervious" Area
Pro osed Im ervious`Area
4.669 ac.
% Impervious* Area (total)
� 4�er'�lo'1L�� 4
p �� a ;r. xo-, £ �
�.a. .,ar��uaaa ,� . ,�C .ta:•
On -site Buildings
0-444 ac:-
On-site Streets
On -site Parking
On -site Sidewalks
0.076 ac.
Other on -site
Off -site
Total: 4.669 ac
Tom:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
J6
Form SWUMI- Version,3.99
Page 2 of 4

7. How was the off -site impervious area listed above derived? Pre�inarV p] an for future
1k
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following it 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 varysignificantly, a
table listing each'lot number, size and the allowable built -upon area for each lot must be provided as an
attachment.
The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
2. No more than n/a square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
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 therm, that they will run with the land, that the required covenants cannot be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the
status and availability of these forms.
Form SWU-102
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-10,8
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Fofzn SWU-101 Version 3.99 Page 3 of 4 ORIGINAL

VI. SUBMITTAL REQUIREMENTS
.A
Only complete application packages wiII 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)
VM 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): Eas cii nvr-i nq C l„ang RA
Mailing Address: Post: Off -ire Bay 2469
City: Shal lot:te ' State: - _Nr _ _ Zip: 22459
Phone: ( 910 ) 754-8029�
VIIL APPLICANT'S CERTIFICATION
r
I, (print or type name of person listed in General Information, item 2) 177 Win; ng Ci hscm
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 coants will be recorded, and that the proposed project complies with the requirements of.15A
NCAC 2H .1000.7
1 it Ili .),r-,._
S Form WU , 0 ; - i Version 3.99
" I iU
Page 4 of 4
Date:

' r Permit No..S/-y���1%/iL� _
(to be provided by DWQ)
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.
I. PROJECT INFORMATION
Project Name: Upton Ina., _ Sunset BPach,
Contact Person:. Fleming Gibsgn Phone Number: ( 910 _) 287-1719
For projects with multiple basins, specify which basin this worksheet applies to: l onP tea si n' nnl �Q
elevations
Basin Bottom Elevation 33_no ft.
Permanent Pool Elevation_ .37.00 ft.
Temporary Pool.Elevation - 37.35 ft.
areas
Permanent Pool Surface Area 51,210 sq. ft.
brai.nage"Area 379,800,E $,71 C.
Impervious Area 203,400&1-"9ac.
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
1360Son cu. fL (combined volume of main basin and forebay)
__1 R cu. ft. (volume detained above the permanent pool)
24,090 cu. fr- (approximately 20% of total volume)
0.0466
2 @ 1,75 in.
1.0 in.
an %
(surface area to drainage area ratio from DWQ table)
(2 to S day temporary. pool draw -down required)
(minimum 85% required)
Form SWU-102 Rev 3.99 Pagel of 4 ORIGINAL

f-
t
Footnotes:
When using the Division SAIDA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious `7o and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR 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.
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.
Applicants Initials
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.
c. The temporary pool controls runoff from the design storm event.
d. 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) vz­�
The basin length to width ratio is greater than. 2 : (
The basin side slopes above the permanent pool are no steeper than 3:1. (Ne"Ir 1'des( bw _Icj!
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. (14-1,7 5-ca
A trash rack or similar device is provided for both the overflow and orifice.
A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control 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.
+ Sea '.CeeC1,41 NOfe-s o- Ste. GS .
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) 0 does
This system (check one) 0 does
does not incorporate a vegetated filter at the outlet.
QOes not incorporate pretreatment other than a forebay.
Form S ,[3i�1A2C11Rev 3.99
Page 2 of 4

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
' bf in an appropriate, manner and shall be handled in a manner that will not adveiseiy impact, water quality
(i.e. stockpiling near . -a wet detention basin or stream, etc.).
. r
The measuring device used to determine -xhe-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 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 _
(fill in the blanks)
q
If
Permanent Pool Elevation 27 f �r 41
•Y Y4' ai4 �v*!
f`adf %tJ �,.i,:
Sediment Re oval El. �L 75
-------------- - Sediment Removal Elevation 34•Q�MM 75%
Bottom Ele ation'�SL %a ------------------------------ 33.0----------------
Bottom Elevation'N6L 259a
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.
r
Form SV C�2 j e�V 3.99 F Noe 3 of 4

,;
7. All components of the wet detention basin system shall be maintained in good working order. T
IV
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: F101iM alter
Title: President:
Pr.
Si
Date: 61- C 4- -'-t -\
Note: The legally responsible parry should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
(1&�I, _ �-'�l,r�� _ , a Notary Public for the State of ��-"`�
County o �� , do hereby certify that
personally appeared before me this �' a "�-day of ZrW° -��' L� - , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
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My commission expiresQ-'O O l
Form SWU-102 Rev 3.99 Pape 4 of 4 ORIGINAL