SW7060304_CURRENT PERMIT_20060326

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �UIOD�
DOC TYPE
CURRENT PERMIT
ff APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
pO$al�
YYYYMMDD

OF W A If 'Michael F. Easley, Governor
�� OG William G. Ross Jr., Secretary
rNorth Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
March 29, 2006
Mr. A.R. Gregor, Jr., Managing Member
Tanglewood SF Partners, LLC
116 Landmark Square, Suite 102
Virginia Beach, VA 23452
Subject: Stormwater Permit No. SW7.060304
Tanglewood Subdivision
High Density Subdivision Project
Pasquotank County
Dear Mr. Gregor:
The Washington Regional Office received a complete Stormwater Management Permit
Application for Tanglewood Subdivision on March 27, 2006. 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. SW7060304, dated March 29, 2006, for the construction of the subject
project.
This permit shall be effective from the date of issuance until March 29, 2016, and shall
be subject to the conditions and limitations as specified therein. Please pay special
attention to the Operation and Maintenance requirements in this permit. Failure to
establish an adequate system for operation and maintenance of the stormwater
management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you
have the right to request an adjudicatory hearing upon written request within thirty (30)
days following receipt of this permit. This request must be in the form of a written
petition, conforming to Chapter 150E 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 Scott Vinson, or me at [phone].
Sincerely,
A, �— 1 (5 (
AI Hodge
Regional Supervisor
Surface Water Protection Section
AHlsav: ' C:ISTORMWATERIPERMIT1SW7060304
cc: Scott Davis, PE
P�,asquotank County Building Inspections
✓Washington Regional Office
Central Files ont
N hCaro'
vaturni
;`forth Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone] Customer Service
Internet w%Ar",,ncwaterquaH1y.org 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748
An Equal Opportunity/A#frmative Action Employer— 50% Recycled110% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7060304
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
Tanglewood SF Partners, LLC
Tanglewood Subdivision
Pasquotank County
FOR THE
construction, operation and maintenance of four wet detention ponds in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "storm water 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 March 29, 2016 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 in Section 1.6 on page 3 of this permit. The stormwater controls have been designed
to handle the runoff from 50.73 acres of impervious area. The subdivision is permitted for 293
lots, with Lots 1-22 & 115-293 having' 3,500 square feet of built -upon area each and Lots 23-
114 having 4,500 square feet of built -upon area each.
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.
5. All stormwater collection and treatment systems must be located in either dedicated common
areas or recorded easements. The final plats for the project will be recorded showing all such
required easements, iri accordance with the approved plans.
Page 2of8

1.1
State Stormwater Management Systems
Permit No. SW7060304
The following design elements have been permitted for this wet detention pond stormwater
facility, and must be provided in the system at all times. (Note that Pond A is proposed for
flood control only.)
Drainage Areas:
Pond B
Pond C
Pond D
Pond E
a.
Drainage Area, acres:
34.92
52.59
39.45
22.49
b.
Total Impervious Surfaces, ac.:
11.60
18.10
15.01
6.02
Lots, ac.:
5.38
8.84
7.63
3.72
Roads/Sidewalks, ac.:
5.98
8.24
7.19
2.30
Park Area, ac:
0.23
0.00
0.14
0.00
Community Center, ac.:
0.00
0.96
0.00
0.00
Tot Lot, ac:
0.00
0.06
0.04
0.00
C.
Pond Depth, feet:
7.50
7.50
7.50
7.50
d.
TSS removal efficiency:
90%
90%
90%
90%
e.
Design Storm:
1"
1"
V
1"
f.
Permanent Pool Elevation, FMSL:
9.50
9.50
9.50
9.50
g.
Permitted Surface Area @PP, ft2:
33,402
57,671
47,127
33,915.
h.
Permitted Storage Volume, ft3:
44,250
68,700
56,225
25,200
i.
Storage Elevation, FMSL:
10.73
10.63
10.65
10.22
�.
Controlling Orifice:
2.0"0 pipe 3.0"0 pipe
2.5"0 pipe
1.5"0 pipe
k.
Permanent Pool Volume, ft3:
137,413
241,238
244,306
163,900
I.
Forebay Volume, ft3:
30,230
60,310
61,077
41,000
m.
Receiving Stream 1 River Basin:
Knobbs Creek 1 Pasquotank
o.
Stream Index Number:
30-3-8
p.
Classification of Water Body:
"C; Sw"
II. SCHEDULE
OF COMPLIANCE
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (such as
swales) shown on the approved plans as part of the stormwater management system without
submitting a revision to the permit and receiving approval from the Division.
2. The permittee is responsible for verifying that the proposed built -upon area for the entire lot,
including driveways -and sidewalks, does not exceed the allowable built -upon area. Once the
lot transfer is complete, the built -upon area may not be revised without approval from the
Division of Water Quality, and responsibility for meeting the built -upon area limit is transferred
to the individual -property owner. ,
3. If an Architectural Review Board or Committee is required to review plans for compliance with
the BUA limit, the plans reviewed must include all proposed built -upon area. Any approvals
given by the Board do not relieve the homeowner of the responsibility to maintain compliance
with the permitted BUA limit.
Page 3 of 8

State Stormwater Management Systems
Permit No. SW7060304
4. '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 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 all or part of the project area. The project
area is defined as all property owned by the permittee, for which Sedimentation and
Erosion Control Plan approval or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
5. The Director may determine that other revisions to the project should require a modification to
the permit.
6. 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.
7. The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
8. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately.
9. 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.
10. If the stormwater system was used as ari 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.
11. Permanent seeding requirements for the stormwater control must follow the guidelines
established in the North Carolina Erosion and Sediment Control Planning and Design Manual.
12. Prior to the sale of any lot, the following deed restrictions must be recorded:
a. The following covenants are intended to ensure ongoing compliance with State
Stormwater Management Permit Number SW7060304, as issued by the Division of
Water Quality under 15A NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to the extant
necessary to maintain compliance with the Stormwater Management Permit.
C. These covenants are to run with the land and be binding on all persons and parties
claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded without the
express written consent of the State of North Carolina, Division of Water Quality.
e. Alteration of the drainage as shown on the approved plans may not take place without
the concurrence of the Division of Water Quality.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW7060304
f. The maximum built -upon area per lot is 3,500 square feet -for Lots 1-22 & 115-293
and 4,500 square feet per lot for Lots 23-114. This allotted amount includes any
built -upon area constructed within the lot property boundaries, and that portion of the
right-of-way between the front lot line 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.
g. Lots .within CAMA's Area of Environmental Concern may be subject to a reduction in
their allowable built -upon area due to CAMA regulations.
h. All runoff on the lot must drain into the permitted system. This may be accomplished
through providing roof drain gutters, which drain to the street,.grading the lot to drain
toward the street, or grading perimeter swales and directing them into the pond or
street. Lots that will naturally drain into the system are not required to provide these
measures.
i. Built -upon area in excess of the permitted amount will require a permit modification.
13. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of
the date of recording the plat, and prior to selling lots. The recorded copy must contain all of
the statements above, the signature of the Permittee, the deed book number and page, and
the stamp/signature of the Register of Deeds.
14. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ personnel.
The facility must be in compliance with all permit conditions. Any items not in compliance must
be repaired or replaced to design condition prior to the transfer. Records of maintenance
activities performed to date will be required.
15. The permittee shall at all times provide the operation and maintenance necessary to assure
that all components of the permitted stormwater system function 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 structures, orifice, catch basins and piping.
g. Access to all components of the system must be available at all times.
16. 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.
17. 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.
18. 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.
19. Decorative spray fountains will be allowed in the stormwater treatment systems, subject to the
following criteria:
a. The fountain must draw its water from less than 2' below the permanent pool surface.
b. Separated units, where the nozzle, pump and intake are connected by tubing, may be
used only if they draw water from the surface in the deepest part of the pond.
c. The falling water from the fountain must be centered in the pond, away from the shoreline.
d. The maximum horsepower for the fountain's pump is based on the permanent pool
volume. The maximum pump power for a fountain in Pond B is 0.5 hp, Pond C is 0.75 hp,
Pond b is 0.75 hp and Pond E is 0.5 hp.
Page 5of8

State Stormwater Management Systems
Permit No, SW7060304
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and approval by the
Director. In the event there is either a desire for the facilities to change ownership, or there- is
a name change of the Permittee, a "Name/Ownership Change Form" must be submitted to the
Division of Water Quality accompanied by appropriate documentation from the parties
involved. This may include, but is not limited to, a deed of trust, recorded deed restrictions,
Designer's Certification and a signed Operation and Maintenance plan. The project must be in
good standing with DWQ. The approval of this request will be considered on its merits and
may or may not be approved.
2. The permittee is responsible for compliance with all of the terms and conditions of this permit
until such time as the Director approves the transfer request.
3. 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.
4. 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.
5. 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.
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. Permittee grants permission to staff of the DWQ to access the property for the purposes of
inspecting the stormwater facilities during nominal business hours.
8. The permittee shall notify the -Division of any name, ownership or mailing address changes
within 30 days.
9. 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.
Permit issued this the 291h day of March, 2006.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A- w
-,L— �.—
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7060304
Page 6 of 8

State Stormwater Management Systems
Permit No. SW7060304
Tanglewood Subdivision
Stormwater Permit No. SW7060304
Pasauotank County
Designer's Certification
Page 1 of 2
1, , as a duly registered in the State of
North Carolina, having been authorized to observe (period icallylweeklylfull 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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW7060304
Certification Requirements:
Page 2 of 2
.1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -
upon area.
.3. All the built -upon area associated with the project is graded such that the runoff drains
to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is, provided on the outlet/bypass structure.
8: All slopes are grassed with permanent vegetation:
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
11. The permitted amounts of surface area and/or volume have been provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a forebay, and
the vegetated filter.
15. The required dimensions of the system are provided, per the approved plan..
cc: NCDENR-DWQ Regional Office
Pasquotank County Building Inspections
Page 8 of 8

us Area Summary
Lot #
Max
Impervious
Area
151
3.500 SF
152
3,500 SF
153
3,500 SF
154
3,500 SF
155
3.500 SF
156
3,500 SF
157
3,500 SF
158
3.500 SF
159
3,500 SF
160
3,500 SF
161
3,5008
162
3,500 SF
163
3,500 SF
164
3,500 SF
165
3,500 SF
166
3.500 SF
167
3,500 SF
168
3,500 SF
169
3,500 SF
170
3.500 SF
171
3,500 SF
172
3,500 SF
173
3,500 SF
174
3.500 SF
175
3.500 SF
176
3,500 SF
177
3.500 SF
178
3,500 SF
179
3.500 SF
180
3,500 SF
181
3.500 SF
182
3.500 SF
183
3.500 SF
184
3.500 SF
185
3,500 SF
186
3.500 SF
187
3.500 SF
188
3,500 SF
189
3,500 SF
190
3,500 SF
191
3.500 5F
192
3,500 SF
193
3,500 SF
194
3,500 SF
195
3.500 SF
196
3,500 SF
197
3.500 SF
198
3.500 SF
199
3,500 SF
000
3,500 SF
REICTIVED
MAR 2 7 2006
DWQ
PROD #
PA32157.MssheetslBMP Calculations 2-22-06.xts

OFFICE USE ONLY
Dace Received
Fee Paid
Permit Number
State of North Carolina
SWAciz 3/6/06
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION Fp=EIVED
This form may be photocopied for use as an original
MAR 02 2006
GENERAL INFORMATION
Applicants name (specify the name of the corporation, individual, etc. who owns the prcjAWQ-W R0
`TAQGL.T--
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
R— UR-
3. Mailing Address for person listed in item 2 above:
ILG LAkit>t> -1 94d- SQU,0—e, -SU17VE l02
City:tR,Gt"1A% "FgCA.C," State:- -�ezip: _?%SZ
Telephone Number: ( rf SQ ) 4471 (-- iaGr).
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
5. Location of Project (street address):
A ST ,d,D ZOAD
City: E u�a1,F--T CrT _ _county. � SU'ZVSST K
6. Directions to project (from nearest major intersection):
/,/or'rr! 5 LW —STEAD TZdA- ±S Goo ' r r05T Q9 J:J+g- F-T- 1^I -��L "PASS .
7. Latitude: �5(2 - i £s. 05 Longitude: 47G , J G , SA of project
$. Contact person who can answer questions about the project:
Name: SCATT D&\JIS Telephone Number:
II. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

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2. If this application is beinubmitt d as the result of a renewal or modification to an existing permit, list the
existing permit number Al and its issue date (if known)
3. Specify the type of project (check one):
Low Density High Density Redevelop General Permit Other
4, Additional Project Requirements (check applicable blanks):
_CAMA Major V Sedimentation/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.
111. 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.
14,J --
2. Stormwater runoff from this project drains to the r V O River basin.
3. Total Project Area: ( SO acres 4. Project Built Upon Area: %
S. How many drainage areas does the project have?
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
k�.lc��$S ce cE vG
Receiving Stream Class
Drainage Area
I r.�0 4�.
,
Existing Impervious* Area
Cow VI-11
Proposed Impervious*Area
14L
% Impervious* Area (total)
Impervious' Surface Area
Drainage Area I
Drainage Area 2
On -site Buildings
25. Qc-,
On -site Streets
On -site Parking
92
On -site Sidewalks
Lt. R
Other on -site
�"t'''"r'"'r'
5 A
Off -site
Total: 6o, 3 Q L
Total:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 399 Page 2 of 4
S b -D
15
Ck
Qe

1=
7. How was the off -site impervious area listed above derived?
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.
1. The f�07,9(o63t)
owing covenants are intended to ensure ongoing compliance with state stormwater management perinit number
If 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 A &A4 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 surlace of swimming pools. L of S
L.*8 % 3- IN � �, ,S" s 3I/ 0+
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 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-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of

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.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item,
Initials
• Original and one copy of the Stormwater Management Permit Application Form Z�
• 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 S�
• Two copies of plans and specifications, including: SD
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): SGpi'T' A�L15 - YA1.1 !6� uAj/6F_)J 1 TLi,tl1 14/C,
Mailing Address: 55'" C= Q,EeWADCdA Q04b SQ CM 30
City: �1 t9JC' L1 GN _ -- State: VA Zip:_ Z3,%-2_
Phone: qR O— d1%2. Fax:
VIII. APPLICANT'S CERTIFICATION
1. (print or type name ofperson listed in General Information, item 2)
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 2H .1000.
Signatu
Form SWU-101 Version 3.99 Page 4 of
Date: 2- -/7 - 06

Permit No. _�'w7�Y,0. ,0Y
(to be provided Ly DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality "RE CEP I VE 71)"
STORMWATER MANAGEMENT PERMIT APPLICATION 170kA 0 2.2006
WET DETENTION BASIN SUPPLEMENT
This form rrray be photocopied for use as an original PROD #
nwQ
DWQ Storrnwater 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: 1 Zti&e&-t-joe% f�uT3IDwLS►o tit
Contact Person: ZrC_t�, (-, c�R , �� . Phone Number: 757 / - (4 z
For projects with multiple basins, specify which basin this worksheet applies to: —$MP -_f3
elevations
Basin Bottom Elevation
2.00
ft.
Permanent Pool Elevation
9.50
ft.
Temporary Pool Elevation
/0.73
ft.
areas
Permanent Pool Surface Area L/ D 2- sq. ft.
Drainage Area
Impervious Area
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA 1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
�RZ• _� ac.
/!• (00 ac.
(floor of the basin)
(elevation of the orifice)
(elei,ation gf'the discharge structure overflow)
(water- sicrfac•e area at the orifice elevation)
(on -site and riff -site drainage to the basin)
(on -site and riff -site drainage to the basin)
t S7, y/ 3 cu. ft. (combined volume of'main basin and forebay)
q`f { Z60 cu. ft. (volume detained above the permanent pool)
3o.zso cu. ft. (approximately 20% of'total volume)
()lga (surface area to drainage area ratio from DWQ table)
Z • b in. (2 to 5 day temporary, pool draw -down required)
l in.
�70 % (minimum 85% required)
Form SWU-102 Rev 3.99 Paige I of 4

FnntnntPc
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.
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 BM P manual provides design tables for both 85% TSS removal and 90% TSS removal.
IL 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
Sid _
a.
The pennanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
Sn _
b.
The forebay volume is approximately equal to 20% of the basin volume.
SD
c.
The temporary pool controls runoff from the design storm event.
5�
d.
The temporary pool draws down in 2 to 5 days.
N A
e.
If required, a 30=foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
sl>
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.
SX::>
h.
A submerged and vegetated perimeter shelf with a slope of 6: I or less (show detail).
5�
i.
Vegetative cover above the permanent pool elevation is specified.
SA
j.
A trash rack or similar device is provided for both the overflow and orifice.
S�J
k.
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.
I11. 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 M does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does @(does not incorporate pretreatment other than a forebay.
Form S WU-102 Rev 399 Page 2 of 4

Maintenance activities shall be performed as follows:
i. 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 %.10 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads G.1 o feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 61.50
Sediment Re oval El. 3•4D � 75 0
-------------- Sediment Removal Elevation 3.go 75%
Bottom Ele ation 2.0 %--------------------------------------------- -----
FOREBAY
Bottom Elevation Z. 0 ♦ 25%
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.
Form SWU-102 Rev 3.99 Page 3 of

7. All components of the wet detention basin system shall be maintained in good working order.
acknowledge and agree by my signature below that I am responsible for the perfonnance 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 systetn or responsible party.
Print name:
Title: AIGI I.1C= MiBE
Address: llh _&a1QA2.E GUrTE 137 L u IQG><LLI!1 i ' ACI.1 VA_ Z-34S2
Phone:
Signature: 4!f / ,
Date: �?- - l -7 - OL'o
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�l JjEL L �t,✓!S L�A�P , a Notary Public for the State of 41 GJNI A ,
boufttyof \j j P4 s1IOIA BEAC+t , do heFeby certifythat
C
personally appeared before the this 1-7 day of T� �pCa , and acknowledge the due
execution of the forgoing wet detention basin mainte nce requirements. Witness my hand and official seal,
SEAT.
My commission expires 31 1 1,2 �D8
Form SWU-102 Rev 3.99 Page 4 of 4

• f
'.
:r
•�
. I1

Permit No. ! W70&) pV
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality �E GE I V K
iff
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
MAR 0 2.2006
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
PROD #
DWQ
DWQ Stonrlwater Manauenient Plan Review:
A complete stonnwater 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:
Contact Person: Jz. 1GK. Phone Number: ('757} y9/�-�91oZ
For projects with multiple basins, specify which basin this worksheet applies to: T3M P -G.
elevations
Basin Bottom Elevation 2.Oo ft.
Permanent Pool Elevation 1. 5D ft.
Temporary Pool Elevation /p. 6o3 ft.
areas
Permanent Pool Surface Area 57. (07 1 sq. ft
Drainage Area 52. S q ac.
Impervious Area P9,10 ac.
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Remova] Z
cu. ft.
(ea ,boo cu. ft.
(CO. 310 cu. ft.
en It 3
3. 0 in
t lIl.
9b %
(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)
(combined volume of main hasin and forebay)
(volume detained above the permanent pool)
(approximately 20% of total volume)
(surface area to drainage area ratio from DWQ table)
(2 to 5 day temporary pool draw -down required)
(minimum 85% required)
Form SWU-102 Rev 3.99 Page I of' 4

Footnotes:
When using the Division SA/DA tables, the correct SAIDA 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.
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
S a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
Sr-_!) b. The forebay volume is approximately equal to 20% of the basin volume.
SD c. The temporary pool controls runoff from the design stone event.
Sty d. The temporary pool draws down in 2 to 5 days.
/V A e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
5 f. The basin length to width ratio is greater than 3:1.
51Z> g, The basin side slopes above the permanent pool are no steeper than 3:1.
Sx:> h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
5V_-,
A
Vegetative cover above the permanent pool elevation is specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
5T-1) k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
$� I. 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.
Sb m. A mechanism is specified which will drain the basin for maintenance or an emergency.
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 Wdoes not
This system (check one) 0 does 9(does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Form SWU-102 Rev 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.
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 CPJ o feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads &•10 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
ill in the blanks)
Permanent Pool Elevation 9 .SO
Sediment Ren\oval El. 3.40
-------------_V _ Sediment Removal Elevation 3 40 75%
Bottom Ele ation 2.0 %--------------------------------------------- ------
FOREBAY
Bottom Elevation Z.0 25%
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.
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: RtC V-- GiZ.c.GarL 32 .
Title: mAxI i,Ci't PC= M Q mi'g
Address: ! LA*.► ,!z v— rTE 10:L V IZGt>`i f VA Z3yS 2
1,
Date: 09--, - I ` U(Q _
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, I111i1EL. uyjiS a Notary Public for the State of V 1RGjA!Ifl ,
4Y of VIRC-4,)iq do her ruby certify that A, GRIEGDR
personally appeared before me this `7 day of , 20C�, , and acknowledge the due
execution of the forgoing wet detention basin maintenance requi ents. Witness my hand and official seal,
SEAL
My commission expires 3 i 'aob5
`�j
Form S WU-102 Rev 3.99 Page 4 of 4

_ �
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t:
l
�
t .
,., ,

Permit No. 4�2 D(o D3 oY
(to be provider! by DIVA)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality �E C� I V
E
-10 3
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
MAR 0 2 2006
WET DETENTION BASIN SUPPLEMENT DWQ
This form may be photocopied for use as m original
PROJ #
DWQ Storinwater Management Plan Review:
A complete stormwater management plan submittal
supplement for eacli basin, design calculations, and
Structure details.
L PROJECT INFORMATION
includes an application form, a wet detention basin
plans and specifications showing all basin and outlet
Project Name:
Contact Person:. ,�k eat , �� Phone Number: (757) L191-19d, 2-
For projects with multiple basins, Specify which basin this worksheet applies to: _ EM P - j--)
elevations
Basin Bottom Elevation z . on ft.
Permanent Pool Elevation 9.50 ft.
Temporary Pool Elevation /0-615 ft.
areas
Permanent Pool Surface Area 1/% /Z7 sq. ft.
Drainage Area 39. y5 ac.
Impervious Area 15.0 / ac.
volumes
Permanent Pool Volume 2,4y,alo cu. ft.
Temporary Pool Volume 6lp. ?Icu. ft.
Forebay Volume G1 I D3 7 cu. ft.
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
/. OY
z.s in
1 in.
b %
(floor of the basin)
(elevation of the orffice)
(elevation of the discharge structure overflow)
(water srnface area at the orifice elevation)
(on -site and riff -site drainage to the basin)
(on -site and off site drainage to the basin)
(combined volume of main basin and forebay)
(volume detained above the permanent pool)
(approximately 20% of total volrcme)
(surface area to drainage area ratio front. DWQ table)
(2 to 5 day temporar)r pool draw -dawn required)
(minimum 85% required)
Form SWU-102 Rev 3.99 Page I of 4

Footnotes:
When using the Division SAIDA tables, the correct SAIDA 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.
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
Sb a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
SD b. The forebay volume is approximately equal to 20% of the basin volume.
SD c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
tJLkA e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
5t" f. The basin length to width ratio is greater than 3:1.
Sp g. The basin side slopes above the permanent pool are no steeper than 3:1.
S� h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
SI:> i. Vegetative cover above the permanent pool elevation is specified.
S'D j. A trash rack or similar device is provided for both the overflow and orifice.
5� k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
8"�_>
SD
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.
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 Wdoes not
This system (check one) 0 does 9(does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Form SWU-IO2 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
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 G, .10 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads Co- 10 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
fll in the blanks)
Permanent Pool Elevation q -SO
Sediment Re oval El. 3.40 175 o
--------------- Sediment Removal Elevation ;&"I O 75%
BottomEle ation 2.O %--------------------------------------------- ------
Bottom Elevation 2.40 25% /
IFOREBAY 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.
Form S WU-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: RIGIL GR..F.GC�tZ TC2 .
Title: M�.I.II�C,►�,IC� i.:tG"ZGtL.
Address: lt(2 %Axal�MA —V— SURE taZ V tQGxklI, '$gqL;A VA Z'3gS2
Phone:
Signature:
Date: 2 - i - OCo I
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.
1, M F—L a Notary Public for the State of V IOQGIVIA T,
Iry
of 1IlRGlMtA BAr , do`hre�reby certify that a .
personally appeared before me this day of 0e)(p, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
I am--x - Y- -
"I
SEAL
My commission expires A3� 2ao8
Form 5WU-102 Rev 3.99 Page 4 of 4

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5

Permit No. SZi %Q(oo3,DY
(to he, provider! by DIVQ)
State of North Carolina
Department of Environment and Natural o c��� T�
Division of Water Quality
'P�
STORMWATER MANAGEMENT PERMIT APPLICATIOMRCW006
WET DETENTION BASIN SUPPLEMENT DWQ
This forrn may be photocopied for use as an origiRPO3 *
DWQ Stonnwater Management Plan Review:
A complete stonnwater management plan submittal includes an application form, a wet detention basin
supple�l�ent for each basin, design calculations, and plans and specifications showing all basin and outlet
structure- details.
I. PROJECT INFORMATION
Project Name: �u�.�&wooU sygUt�i Sion _ _.
Contact Person6,ag ,_,rt"t2 , Phone Number: ( 757) 41* - !4lvZ
For projects with multiple basins, specify which basin this worksheet applies to: $1t4P— E
elevations
Basin Bottom Elevation 2.00 ft.
Permanent Pool Elevation 9.56 ft
Temporary Pool Elevation /G : ??.. -ft
(floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area '3r�,.qlS sq. ft. (water surface area at the orifice elevation)
Drainage Area 2Z•ti1 ac. (tin -site and off -site drainage to the basin)
Impervious Area 42- ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume (03,_900 cu. ft. (combined volume of main basin and fvrebay)
Temporary Pool Volume 7W cu. ft. (volione detained above the permanent pool)
Forebay Volume obo cu. ft. (approximately 20% of total volume)
Other parameters
SAIDAI 0.74 (siuface area to drainage area ratio from DWQ table)
Diameter of Orifice /• 5 in. (2 to 5 day temporary pool draw -down required)
Design Rainfall 1 in.
Design TSS Removal 2 90 % (minimum 85% required)
Form S W U-102 Rev 3.99 Page 1 of 4

Footnotes:
t When using the Division SA/DA tables, the correct SAIDA 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.
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
S a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
S� b. The forebay volume is approximately equal to 20% of the basin volume.
SD c. The temporary pool controls runoff from the design storm event.
5� _ d. The temporary pool draws down in 2 to 5 days.
N1r4 e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
— 5t_> f. The basin length to width ratio is greater than 3:1.
%O
g.
The basin side slopes above the permanent pool are no steeper than 3:1.
Sty
h.
A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
5I �-)
i.
Vegetative cover above the permanent pool elevation is specified.
S7
j.
A trash rack or similar device is provided for both the overflow and orifice.
ST-1)
k.
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.
S�
m.
A mechanism is specified which will drain the basin for maintenance or an emergency.
Ill. 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 incorporate a vegetated filter at the outlet.
This system (check one) 0 does 9(does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
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 Co . tO feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads G' 10 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 4-SO
Sediment Re oval El. &.gO 75 0
______________ __ Sediment Removal Elevation g.qO 75%
BattomEle ation �.•O %--------------------------------------------- ------
Bottom Elevation l . O 25%
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.
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. 1 agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print name: _ _ R C V, GR:C.GoQ, 3RL .
Title: tl: Qmjt GY
Address: jltp SURE !aZ VA S2
IN
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)P�atE.L L.�W t s 17�`'� , a Notary Public for the State of Viye6 t o
(!.t-ry
Couftty'of IREAC U , do hereby certify that A. R . GZEEGDR , 5►2,
personally appeared before me this 1 day of 00(o, and acknowledge the due
execution of the forgoing wet detention basin maintenance requircilients. Witness my hand and official seal,
SEAL
My commission expiresma,
Form SWU-102 Rev 3.99 Page 4 of 4