SW7090702_CURRENT PERMIT_20091116

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW %0%'f�7DoZ
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOG DATE
YYYYMMDD

,w r
NC®ENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
November 16, 2009
Mr. Russell Twiford
2125 Rivershore Road
Elizabeth City, INC 27909
Woo
Natural Resources
Dee Freeman
Subject: Stormwater Permit No. SW7090702
Rosabelle Court Subdivision
High Density Stormwater Project
Camden County
Dear Mr. Twiford:
The Washington Regional Office received your completed Stormwater
Management Permit Application for the subject project on October 19, 2009.
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. SW7090702 dated November
16, 2009 for the subject project.
Z�33 0 %2- /
This permit shall be effective from the date of issuance until Nember 16, 2019,
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 and in the submitted application. Failure to establish an adequate system
for operation and maintenance of the stormwater management system will result
in future compliance problems.
If any parts, requirements, or limitations contained in this permit are
unacceptable, you have the right to request an adjudicatory hearing upon written
request within thirty (30) days following receipt of this permit. This request must
be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings,
P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made
this permit shall be final and binding.
North Carolina Division of Water Quality Internet aww.ncwateraualitvore
943 Washington Square Mall Phone: [phone]
Washington, NC 27889 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycletl110% Post Consumer Paper
NorthCarolina
;Vaturallty

Page 2 of 9 vV
Mr. Russell Twiford
November 16, 2009
Page Two
If you have any questions, or need additional information concerning this matter,
please contact either Bill Moore, or me at [phone].
Sincerely,
.ra'.
Al Hodge
Regional Supervisor
Surface Water Protection Section
cc: Hyman & Robey
Camden County Planning/Inspections
L^ashington Regional Office
Central Files

Page 3 of 9
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
Mr. Russell Twiford
Rosabelle Court Subdivision
Camden County
FOR THE
construction, operation and maintenance of a wet detention basin 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 for
Rosabelle Court Subdivision located at Camden, NC.
This permit shall be effective from the date of issuance until November 16, 2019,
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 4 of this permit. The
stormwater controls have been designed to handle the runoff from 0.56
acres of impervious area.
All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the
project will be recorded showing all such required easements, in
accordance with the approved plans and permit.
4. The tract will be limited to the amount of built -upon area indicated on page
4 of this permit, and per approved plans.

Page 4 of 9
5. The runoff from all built -upon area within the permitted drainage areas of
this project must be directed into the permitted stormwater control system.
6. The following design criteria have been provided for the infiltration basins
and must be maintained at design condition:
a. Total Site Area:
23.95 acres
b. Total Impervious Surfaces:
0.56 acres
C. Design Storm:
1.5 - inch
d. Basin Depth:
5.5 ft
e. TSS removal efficiency:
90 %
f. Permanent Pool Surface Area Required:
2804 sf
g. Permanent Pool Surface Area Provided:
6482 sf
h. Storage Volume Required:
4062 cf
i. Storage Volume Provided:
6235 cf
j. Controlling Orifice:
1.50 - inches
k. Receiving Stream/River Basin:
Sawyers Creek
I. Classification of Water Body:
C-sw
II. SCHEDULE OF COMPLIANCE
1. 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.
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 Plans
must be followed in its entirety and maintenance must occur at the
scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. - Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.

Page 5 of 9
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, filter media,
flow spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass 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. 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.
6. Upon completion of construction, prior to issuance of a Certificate of
Occupancy, and prior to operation of this permitted facility, a certification
must be received from an appropriate designer for the system installed
certifying that the permitted facility has been installed in accordance with
this permit, the approved plans and specifications, and other supporting
documentation. Any deviations from the approved plans and
specifications must be noted on the Certification. A modification may be
required for those deviations.
7. 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.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
9. The permittee shall submit to the Director and shall have received
approval for revised plans, specifications, and calculations prior to
construction, for any modification to the approved plans, including, but not
limited to, those listed below:
a. Any revision to any item shown on the approved plans, including
the stormwater management measures, built -upon area, details,
etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or
to the drainage area.
e. Further subdivision, acquisition, lease 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.
10. The permittee shall submit final site layout and grading plans for any
permitted future areas shown on the approved plans, prior to construction.

Page 6 of 9
11. A copy of the approved plans and specifications shall be maintained on
file by the Permittee at all times.
12. 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.
13. This permit shall be effective from the date of issuance until November
16, 2019. Application for permit renewal shall be submitted 180 days
prior to the expiration date of this permit and must be accompanied by the
processing fee.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the
Director. In the event of a change of ownership, or a name change, the
permittee must submit a formal permit transfer request to the Division of
Water Quality, accompanied by a completed name/ownership change
form, documentation from the parties involved, and other supporting
materials as may be appropriate. The approval of this request will be
considered on its merits and may or may not be approved. The permittee
is responsible for compliance with all permit conditions until such time as
the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit
may subject the Permittee to enforcement action by the Division of Water
Quality, in accordance with North Carolina General Statute 143-215.6A to
143-215.6C.
3. The issuance of this permit does not preclude the Permittee from
complying with any.and all statutes, rules, regulations, or ordinances,
which may be imposed by other government agencies (local, state, and
federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the
creation of nuisance conditions, the Permittee shall take immediate
corrective action, including those as may be required by this Division, such
as the construction of additional or replacement stormwater management
systems.
5. The permittee grants DENR Staff permission to enter the property during
normal business hours for the purpose of inspecting all components of the
permitted stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for
cause. The filing of a request for a permit modification, revocation and
reissuance or termination does not stay any permit condition.
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.

Vol
Page 7 of 9
8. Approved plans and specifications for this project are incorporated by
reference and are enforceable parts of the permit. A copy of the approved
plans and specifications shall be maintained on file by the Permittee for
the life of the project.
9. The permittee shall notify the Division of any name, ownership or mailing
address changes within 30 days.
Permit issued this the 16 th day of November, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7090702

Page 8 of 9
Stormwater Permit No. SW7090702
Russell Twiford Commercial Subdivision
Wet Detention Pond System
Camden 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.
Note: The checklist on the following page must be included with this
Certification. Any changes or deviations from the approved plans and
specifications must be explained in detail, and may require a permit modification.
The certification forms should be submitted to the Division of Water Quality at the
appropriate Regional office.
SEAL
Signature
Registration Number
Date

Page 9 of 9
Compplete this checklist for each system and include with
CertiFication:
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 bypass structure elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A 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. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved
plans.

:4»
(, J_", 71 z�ICI7
...
Keceived,
Fee Paii:::��
Permit
Number
State of North Carolina -5 WAC
Department of Environment and Natural Resources "Y�
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION Ye. rr,`n&-I
v.si'Oi^ 5
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): re
Russell Twiford
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
3. Mailing Address for person listed in item 2 above:
2125 Rivershore Road
City:Elizabeth City State:NC Zip:27909
Phone: (252 ) 335-0187 Fax: ( )
Email:
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Minor Commercial Subdivision for Russell Twiford - Rosabelle Court Construction
5. Location of Project (street address):
City:Camden County:Camden Zip:27921
6. Directions to project (from nearest major intersection):
From the intersection of NC-343 and US-158 E, travel eastbound on US-158 for approximately 1.15 miles.
Project is on the north side of US 158
7. Latitude:36° 20' 32" N Longitude:76° 09' 34" W of project
8. Contact person who can answer questions about the project:
Name:Kim Hamby Telephone Number: (252 ) 335-1888
Email:[e-mail]
II. PERMIT INFORMATION:
1. Specify whether project is (check one): ®New ❑Renewal []Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
FormSWU-101 Version09.25.08 Page 1 of

4. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial Stormwater
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.
All runoff from impervious surfaces will be collected in roadside swales with 3.1 side slopes that drain to the
porposed stormwater wetland designed to treat the first 1.5" of runoff.
2. Stormwater runoff from this project drains to the Pasquotank River basin.
3. Total Property Area: 23.95 acres 4. Total Coastal Wetlands Area: 4.33 acres
5. Total Property Area (3) — Total Coastal Wetlands Area (4) = Total Project Area**:19.62 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA): 3 %
7. How many drainage areas does the project have? 2 S-663 3¢
8. Complete the following information for each drainage area. If there re more than two drainage areas in the
project, attach an additional sheet with the information for each are provided in the same format as below.
For high density projects, com lete the table with one drainage ar for each engineered stormwater device.
basin Informahon
rainage Area 1
Urainage Area
Receiving Stream Name
awyer s CreeK
Sawyer's Creek
Stream Class & Index No.
w -
w
otal Drainage rea s
On -site Drainage rea s
Z7.3 a�
Off -site Drainage Area s
Existing Impervious Area (so
Proposed Impervious Area (sf)
.56 Qc1,268
% Impervious Area (total)
34.75%
0.13%
Impervious Surface Area
Uramage Area I
Drainage Area
On -site Buildings(so
0
On -site Streets(so
18,526
On -site Parking s(futuredriveways)
On -site Sidewalks s
t er on-site(so
0
Off -site s
total s
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
**Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived? by design
Projects in Union County: Contact the DWQ Central Office staff to check to see ifyou project is located
within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater
requirements.
Form SWU-101 Version 09.25.08 Page 2 of

One of the following property 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.
Forms can be downloaded from htto://h2o.enr.state.nc.us/su/bmp forms.htm - deed restrictions.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certi that the recorded pro erty restrictions and protective covenants for this
project shall include all the ale items required in the above form, 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 NC DWQ, 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 Permitting Unit at [phone] for the status and
availability of these forms. Forms can be downloaded from http:/ih2o.enr.state.nc.us/su/bmp forms.htm.
Form SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration Trench Supplement
Form SW401-Bioretention Cell
Bioretention Cell Supplement
Form SW401-Level Spreader
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Form SW401-Wetland
Constructed Wetland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SW401-Permeable Pavement
Permeable Pavement Supplement
Form SW401-Cistem
Cistern Supplement
Form SWU-101 Version 09.25.08 Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The compplete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at http://h2o.enr.state.nc.us/su/msi maps.htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initi
• Ori,ginal and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application Processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), 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)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm):Hyman & Robey
Mailing Address:P.O. Box 339
City:Camden State:NC Zip:27921
Phone: [phone] Fax: (252 ) 338-5552
Email:[e-mail]
VIII. APPLICANT'S CERTIFICATION
I, (print or ty a name of person listed in General Information, item 2) Russell Twiford
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 wit. 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 2FVITORO. // Q
Signature Date: 4 1
Form SWU-101 Version 09.25.08 Page 4 of 4

HYMAN
ROBEY
June 30, 2009
Mr. Roger Thorpe
Dept. of Environment and Natural Resources
Water Quality Section
943 Washington Square Mall
Washington, NC 27889
Subject: Stormwater Management Permit
Minor Commercial Subdivision for Russell Twiford
Rosabelle Court
Proj. # 080256
Dear Mr. Thorpe:
Enclosed for your review and approval, please find the following items:
1. Two (2) copies of the above referenced plans.
2. The original and one (1) copy of the Stormwater Permit Application, Wet Detention Basin
Supplement, and Wet Detention Basin Operation and Maintenance Agreement.
3. Two (2) copies of the project description and calculations.
4. One (1) copy of the deed for the property.
5. Check in the amount of $505.00 for the required fee.
6. One (1) copy of the subdivision plat revised to show required drainage easements.
If you have any questions or require any additional information, please do not hesitate to call
this office at [phone].
Sincerely,
Kimberly D. Ha b� Sr. Project Manager DVVU-'�g17 ARO
cc: file
Mr. David Cross
P. O. Box 339 Camden, North Carolina 27921
[phone] License C-0598
w .hymanrobey.com

Permit No.
(to be provided by DWD)
JUL 0 6 2009 o�oF war f;, 9
NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project name Minor Commercial Subdivsion for Russell Twi(ord
Contact person Kim Hamby
Phone number 252-335-1888
Date 612912009
Drainage area number 1
II. DESIGN INFORMATION
Site Characteristics
Drainage area 70.089 112
Impervious area, post -development
24,353 ff2
%impervious
34.75 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required
4,062 rya OK
Volume provided
6,235 fts
OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5" runoff volume
It
Pre -development 1-yr, 24-hr runoff
It
Past -development 1-yr, 24-hr runoff
hi3
Minimum volume required
0 hi3
Volume provided his
Peak Flow Calculations
Is the prelpost control of the 1yr 24hr storm peak flow required?
N (Y or N)
1-yr, 24-hr rainfall depth
in
Rational C, pre -development
(unitless)
Rational C, post -development
(unitless)
Rainfall intensity: 1-yr, 24-hr storm
inthr
Pre -development 1-yr, 24-hr peak flow
0.52 ft Isec
Post -development 1-yr, 24-hr peak flow
1.46 ft Isec
Pre/Post 1-yr, 24-hr peak flow control
0.94 ff3/sec
Elevations
Temporary pool elevation
2.25 first
Permanent pool elevation
1.50 first
SHWT elevation (approx. at the perm. pool elevation)
1.00 fmsl
Top of 10ff vegetated shelf elevation
2.00 fmsl
Bottom of 10ff vegetated shelf elevation
1.00 fmsl
Sediment deanout, top elevation (bottom of pond)
4.00 fmsl
Sediment cleanout, bottom elevation
-5.00 fmsl
Sediment storage provided
1.00 If
Is there additional volume stored above the state -required temp. pool?
Y (Y or N)
Elevation of the top of the additional volume
2.3 fmsl OK
Form SW401-Wet Detention Basin-Rev.5 Pens 1. a 11. Design Summary, Page 1 or 2

Permit
(to be provided by DWO)
Ill. DESIGN INFORMATION
Surface Areas
Area, temporary pool 9,443 fit"
Area REQUIRED, permanent pool 2,804 ftz
SAIDA ratio 4.00 (unitess)
Area PROVIDED, permanent pool, As,,,,.
6,482 fiz
OK
Area, bottom of 10tt vegetated shelf, Ab,,,
3,251 n2
Area, sediment cleanout, top elevation (bottom of pond), A..
201 it'
Volumes
Volume, temporary pool
6,235 fl'
OK
Volume, permanent pool, Vo,,,,,
14,187 tt'
Volume, forebay (sum of forebays tt more than one forebay)
2,876 fl'
Forebay % of permanent pool volume
20.3% %
OK
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
y (Y or N)
Mountain/Piedmont SAIDA Table Used?
n (Y or N)
SAIDA ratio
4.00 (unitess)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
n (Y or N)
Volume, permanent pool, Vpe1f1 ,,
tt'
Area provided, permanent pool, A...
it
Average depth calculated
It
Average depth used in SAIDA, dam., (Round to nearest 0.5t)
it
Calculation option 2 used? (See Figure 10-2b)
y (Y or N)
Area provided, permanent pool, A.
6,482 ft2
OK
_.d
Area, bottom of 1Oft vegetated shelf, Aw, m,e
3,251 ft2
OK
Area, sediment cleanout, top elevation (bottom of pond), Awry s
201 fit'
OK
"Depth' (distance blw bottom of 1 Oft shelf and lop of sediment)
5.00 ff
OK
Average depth calculated
2.90R
OK
Average depth used in SAIDA, d,,, (Round to nearest 0.5ft)
3.0 If
OK
Drawdown Calculations
Drawdown through orifice?
y (Y or N)
Diameter of orifice (if circular)
1.50 in
Area of orifice (if -non -circular)
in
Coefficient of discharge (CO)
0.60 (unitless)
Driving head (Ho)
0.25 ft
Drawdown through weir?
n (Y or N)
Weir type
(unitless)
Coefficient of discharge (C.„)
(unitless)
Length of weir (L)
It
Driving head (H)
fl
Pre -development 1-yr, 24-hr peak flow
0.52 fl'Isec
OK
Post -development 1-yr, 24-hr peak flow
1.46 ff'Isec
Insufficient post -development peak flow.
Storage volume discharge rate (through discharge onfice or weir)
0.03 ft'Isec
Storage volume drawdown time
2.44 days
OK, draws down in 2-5 days.
OK, drawdown time is correct.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 fl
OK
Length of towpath to width ratio
6 :1
OK
Length to width ratio
6.0 :1
OK
Trash rack for overflow & orifice?
y (Y or N)
OK
Freeboard provided
1.3 it
OK
Vegetated filter provided?
y (Y or N)
OK
Recorded drainage easement provided?
y (Y or N)
OK
Capures all runoff at ultimate build -out?
y (Y or N)
OK
Drain mechanism for maintenance or emergencies
pump
Form SW401-Wet Detention Basin-Rev.5 Pens I. B It. Design summary, Page 2 of 2

Permit No.
(to be provided by DWD)
111. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
tech 1,2 & 3 1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
6 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip.
_kCL 6 3. Section view of the wet detention basin (1" = 20' or larger) showing
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
kcLfi
5
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
attached
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided.
5
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
attached
7. The supporting calculations.
attached
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
Ie ,
1
nla
9. A copy of the deed restrictions (if required).
attached
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-W el Detention Basin-Rev.5 Part III. Required Items Checklist, Page 1 of 1

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
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):
® does ❑ does not
This system (check one):
® does ❑does not
incorporate a vegetated filter at the outlet. JUL 0 6 2009
incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
Swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4

n
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
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 5.5 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 33:0 feet in the forebay, the sediment
shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Sediment Removal Ej. -1_50 Pe manenN
----------------- Volume
Bottom Elevatio -250 -ft Min.
Sediment
Storage
FOREBAY
Permanent Pool Elevation 1.50
Sediment Removal Elevation_ 4.0 Volum
Bottom Elevation -5.0 1 1-ft
liir:11,1Li11►` 111
Storage
Form SW401-Wet Detention Basin O&M-Rev.4
Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the 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.
Project name:Minor Comm. Subdiv. for Russell Twiford - Rosabelle Court Construction
BMP drainage area number:
Print name: Russell Twiford
Address: 2125 Rivershore Road, Elizabeth City, NC 27909
Date: 0_ x 30..20V
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, ra to a T a Notary Public for the State of
/1�t7r-4L�Caro ��. , County of BeLi4i.La4a n k- do hereby certify that
Ru,55211 E . Tint Ito rd personally appeared before me this 3CL
day of S� r%C_ , Qoo 9 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements
seal, rat
\�Ov��`pFEIFFF�/G/
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oky
Z F�ev O
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Q U OS
SEAL
My commission expires la-Qo-ao►a
Witness my hand and official
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4

,� 1 ��swyaga7aa Aamnud 7_/4-0Q)/310
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name Minor Commercial Subdivision for Russell Twiford — Rosabelle Court Construction
2. Location of land -disturbing activity: County Camden City or Township Courthouse
Highway/Street US 158 E Latitude 36020'32" Longitude 76009'34"
3. Approximate date land -disturbing activity will commence: 8-1-09
4. Purpose of development (residential, commercial, industrial, institutional, etc.): Commercial
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 6 acres
6. Amount of fee enclosed: $ 390.00 . The application fee of $65.00 per acre (rounded up
to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585).
7. Has an erosion and sediment control plan been filed? Yes X No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name David Cross E-mail Address david(c)crossre.com
Telephone [phone] Cell #
Fax # [phone]
9. Landowner(s) of Record (attach accompanied page to list additional owners):
Russell Twiford 252-335-0817
Name Telephone
2125 Rivershore Road
Current Mailing Address Current Street Address
Elizabeth City NC 27909
City State Zip
City
Fax Number
State Zip
10. Deed Book No. 161 Page No. 42 Provide a copy of the most current deed.
Part B.
1. Person(s) or firm(s) who are financially responsible for the land-diRtRibing ac>wity (Provide :
comprehensive list of all responsible parties on an attached sheet): V��
same as above �U( 0 B 7nnn
Name E-mail Address
Current Mailing Address Current Street Address ° r
City State Zip City
State
Telephone Fax Number

2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name
Current Mailing Address
City State Zip
E-mail Address
Current Street Address
Fax
State Zip
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Name of Registered Agent
Current Mailing Address
City State Zip
Telephone
E-mail Address
Current Street Address
City State
Fax Number
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there be any change in the information provided herein.
Russell Twiford
T e or print name
Signature
Owner
Title or Authority
&Ift'loq
Date
iA i a T T -fie i - Wf! a Notary Public of the County of NIL S4u0 Ta �7K.
State of North Carolina, hereby certify that jZtA35e11 TWi-arl appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and notarial seal, this _ day of Siu nL 200 c9
A ITNpIq����i
\koTAgj, p% Notary
dal �1
0 .6 btG = My commission expires I ol- 010 - 10 1;L
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