SW8041001_CURRENT PERMIT_20041110

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

�GF WA7-,RQ Michael F. Easley, Governor
`p G William G. Ross, Jr., Secretary
7 North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
November 10, 2004
Mr. Archie Cribb, Sr. Vice President
Branch Banking and Trust Company
PO Box 1290
Winston-Salem,. NC 27102-1290
Subject: Stormwater Permit No. SW8 041001
BB&T Sneads Ferry
High Density Project
Onslow County
Dear Mr. Cribb:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for BB&T Sneads Ferry on November 9, 2004. Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit
No. SW8 041001 dated November 10, 2004, for the construction of the subject project.
This permit shall be effective from the date of issuance until November 10, 2014, 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 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless
such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact Linda Lewis, or me at [phone].
Sincerely,
Rick Shiver
Regional Supervisor
Surface Water Protection Section
RSS/arl: S:IWQSISTORMWATIPERMIT1041001.nov04
cc: Brian Soltz, P.E., Commercial Site Design
Onslow County Building Inspections
Linda Lewis
�zWilm i ngtbn=Regional=Office
Central Files
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Senhcel-877-623-6748
Wlimington Regional Office Wilmington, NC 28405-3845 FAX [phone] Internet: h2o.enr.state.nc.us
An Equal OpportunitylAffirmative Action Employer — 50% Reuycledl10% Post Consumer Paper
Nne
orthCarolina
Aahllrall!f

State Stormwater Management Systems
Permit No. SW8 041001
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
Archie Cribb and Branch Banking and Trust Company
BB&T Sneads Ferry
NC 210 & NC 172, Sneads Ferry, Onslow County
FOR THE
construction, operation and maintenance of an underground infiltration trench in
compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules') and the approved stormwater management plans and specifications
and other supporting data as attached and on file with and approved by the Division of
Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until November 10, 2014, and
shall be subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
controls number 1-5 have been designed to handle the runoff from 16,499,
13,809, 8,700, 1,725 and 780 square feet of impervious area, respectively. The
system must be operated with a 50' vegetated filter.
3. The tract and each proposed infiltration system, will be limited to the amount of
built -upon area indicated on page 3 of this permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2 of 7

- State Stormwater Management Systems
Permit No. SW8 041001
6. The following design criteria have been provided in the five Rainstore3 infiltration
storage systems and must be maintained at design condition:
1
2
3
4
5
a.
Drainage Areq, acres:
.57
.38
.27
.04
.018
Onsite, ft :
24,830
16,555
11,718
1,725
780
Offsite, ft2:
0
0
0
0
0
b.
Total Impervious Surfaces, ft2:
16,499
13,809
8,700
1,725
780
c.
Design Storm, inches:
1.5
1.5
1.5
1.5
1.5
d.
Number of Rainstore3 UnitsOO :
605
501
316
207
31
e.
Bottom Elevation, FMSL:
40
37
39
39.5
37
f. Bypass Weir Elevation, FMSL: 41
g. Permitted Storage Volume, ft3: 2,022
h. S.H.W.T, FMSL:
M
38.33 40.33 39.83 37.33
1.674 1,056 207 104
35 37 37.5 35
i. Type of Soil: Sand
j. Expected Infiltration Rate, inlhr: 2.9
I. Time to Draw Down, hours: 4 5 5 4
m. Receiving Stream/River Basin: Mill Creek 1 White Oak
n. Stream Index Number: WOK02 19-39-3-1
o. Classification of Water Body: "SA"
OO Each Rainstore3 unit holds 25 gallons, or 3.34 cubic feet.
11. SCHEDULE OF COMPLIANCE
4
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 Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of 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.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 041001
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 d esigner 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.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
12. 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.
Page 4of7

State Stormwater Management Systems
Permit No. SW8 041001
Ill. GENERAL CONDITIONS
1. This permit is not transferable to any person or entity 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.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued this the 10th day of November 2004.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
l _ice %k __\ .L ,-C _t'1
Alan W. Klimek, P.E.; Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 041001
BB&T Sneads Ferry
Stormwater Permit No. SW8 041001 - -
Onslow County
Designer's Certification
I, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification. -
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 041001
Certification Requirements:
.1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. 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.
CC' NCDENR-DWQ Regional Office
Onslow County Building Inspections
Page 7 of 7

OFFICE USE ONLY
Date Received
Fee Paid
Permit Number
c) D 4 �0
� / #40616., ace
�15/(J to4Y00l
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICA 10I FOI�Iv>,
This form may be photocopied for use as an original ii��
BY:
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
C--K $a.N " 0 G Acnz D TR\)S-r Cpvu-PA.QY
2. Print Owner/Signing Official's name and title (person legally responsible for facility and. cnrnnliance)-
U., c- ,ten Tzusr com-a-,Qy - ARCHTf_ _ CR'T1%1
DE►_
3. Mailing Address for person listed in item 2 above: CSR. ✓icE
P. D . Sox )Zqd
City: W t fJ5TaN —SAL,€ State: I'UC— Zip: 2-71D 2 — 1Z`1 o
Telephone Number: 33(a ) ?03 — 5'
4, Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
i — 5 ►Jv+4DS F11y
5. Location of Project (street address):
W L g1CPVrL'.)A' 210 _V? NG RJ&PkJA1iZ
City: SNEAS FGR-IL-`f County: DNS�LL)
6. Directions to project (from nearest major intersection):
NW Co ZWF tZ- o f ru L141 6#kJAy 2,10 -�k N c- Kr# &" wA. y! 7 Z
1
7. Latitude: 3 y � 3 1 Longitude: —7 -7 Z fd • 2; W of project
8. Contact &PkM4*CA
rson who can answer questions about the project:
Name: S,�e Pei'"— 13 ',641 Telephone Number: (JJ -(oi Z j
-75-01 C re cdwtoor Roma! 50,1e ob SaI
F OA C-10 rye Z'i b t3
II. PERMIT INFORMATION:
1. Specify whether project is (check one)
New Renewal
Form S W U-101 Version 3.99 Page 1 of 4
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 X High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
�CAMA Major 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.
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.
Stormwater will be routed into infiltration areas. The infiltration areas will contain Rainstore3 modular infiltration
units. Stormwater from the first 1.5" of rainfall will infiltrate into the soil. Excess stormwater will enter overflow
inlet and discharge piping.
2. Stormwater runoff from this project drains to the _White Oak River basin.
3. Total Project Area:
1.40 acres
5. How many drainage areas does the project have? 5
4. Project Built Upon Area: 65 %
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 1
Drainage Area 2
Receiving Stream Name
Mill Creek
Mill Creek
Receiving Stream Class
SA
SA
Drainage Area
24,830 sf (0.57 ac)
16,555 sf (0.38 ac)
Existing Impervious* Area
0
0
Proposed Imper-vious`Area
16,499 sf (0,38 ac)
13,809 sf (0.32 ac)
% Impervious* Area (total)
67%
84%
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings
6,894 sf (0.16 ac)
0
On -site Streets
0
0
On -site Parking
9,605 sf (0.22 ac)
13,809 sf (0.32 ac)
On -site Sidewalks
0
0
Other on -site
0
0
Off -site
0
0
Total: 16,499 s€ (0.38 ac)
Total: 13,809 sf (0.32 ac)
SEE ATTACHED SHEET FOR ADDITIONAL DRAINAGE AREAS
* 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 3.99 Page 2 of

FOIUM SWU-101
ADDITIONAL DRAINAGE AREAS
Basin Information
Drainage Area 3
Drainage Area 4
Drainage Area 5
Receiving Stream Name
Mill Creek
Mill Creek
Mill Creek
ReceivingStream Class
SA
SA
SA
Drainage Area
11,718 sf 0.27 ac
1,725 sf 0.04 ac
780 sf (0.018 ac
Existin = Im ervious* Area
0
0
0
Proposed Im ervious*Area
8,700 sf 0.20 ac
1,725 sf 0.04 ac
780 sf (0.01 S ac)
% Impervious* Area (total)
74%
100%
100%
Impervious* Surface Area
Drainage Area 3
Drainage Area 4
Drainage Area 5
On -site Buildings
0
0
0
On -site Streets
0
0
0
On -site Parking
7,780 sf 0.18 ac
1,725 sf 0.04 ac
780 sf (0.018 ac)
On -site Sidewalks
920 sf 0.02 ac
0
0
Other on -site
0
0
0
Off -site
0
0
0
Total:
8,700 sf (020 ac)
1,725 sf 0.04 ac
780 sf (0.018 ac)
* lnipervious area is defined cis the built upon area including, but not limited to, buildings, roads, parking
areas,sideivalks, gravel areas, etc.

. , 5
7. How was the off site impervious area listed above derived? None off -site
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
I. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under 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 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form cisG
• One copy of the applicable Supplement Form(s) for each BMP 4�5
• Permit application processing fee of $420 (payable to NCDENR) GSG
• Detailed narrative description of stormwater treatment/management (�[-
• Two copies of plans and specifications, including: L
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).
Mailing Address: Wo t C966PM00 R_ ROAD. Sv t 7TE lab u
City:L-El(47 State: C Zip:_7.7tc113
Phone: ( ill ) $Y$-6(Z1 Fax: ( 9 ) 9'l$-.57gI
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item Z) Ar GI'1 i e l.. C I b 6
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,
Signature:
vyt-----�
Form SWU-101 Version 3.99 Page 4 of 4
Date: I D - -I -�

r
Pen -nit No. Sw 6 G ¢ 1 c;0 t
(lo be provided by DTVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This farm may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stonnwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stonnwater conveyances and system details.
1. PROJECT INFORMATION
Project Narne : BB&T, Sneads Ferry, NC
Contact Person: Archie Cribb Phone Number: ( 336) 703-5705
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 1 in Drainage Area 1
(from plans) (from Form DYV -101)
I1. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Sand
Infiltration Rate 2.9 in/hr inlhr or cf/hr/sf (circle appropriate units)
SHWT Elevation 3&0 fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume
2,017
c.f.
Design Storm
1.5
inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time
0.25
days
Perforated Pipe Size
NA
inch diameter
Perforated Pipe Length
NA
ft.
No. Observation Wells
0
(may be required on a case -by -case basis)
Stone Type (if used)
NA
Stone Void Ratio
NA
Trench Elevations (in feet mean sea level)
Bottom Elevation
40
fmsl
Storage/Overflow Elevation
41
fmsl
form SWII-107 Rev 3.99
Page 1 of 4

Trench -Dim ensions (see plan sheet C-3, and Infiltration -Area Calculations) -
Height 1 ft. Length --49 ft.
Width —49 ft. Volume Provided 2,241 cu.ft.
(2,241 cf in Rainstore Units, 0 cf aboveground)
III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Departnrient of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that 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. Attach justification if a requirement has not been met.
Applicants Initials
DB
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
DB
b. System is located at least 100 feet from water supply wells.
DB
e.Bottom of system is at least 2 feet above the seasonal high water table.
DB
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon_
DB
e.Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
DB
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
DB
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
DB
h. System is not sited on or in fill material or DWQ approval has been obtained.
DB
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
DB
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
NA
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
DB
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters }.
DB
in. Drainage area for the device is less than 5 acres.
DB
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
DB
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
DB
p. Sides of the infiltration trench are lined with geotextile fabric.
NA
q. Rock used is free of fines, (washed stone) and has a large void ratio.
Forrp` kU-1o7
Rev 3.44 r. Side to bottom area Min s than 4:1.

NA s.Observation well(s) are provided -(case -by -case basis).
DB t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
NA u. A benchmark for checking sediment accumulation is provided.
IN'. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a 1 inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 15" , the accumulated sediment shall be removed
frig the system.
Form SWU-t07 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six maintenance procedures Iisted 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 and Title:_Ar,-e— C,, , t! (DfeA t jam
Address: ?Q [3oX 12 D W f115-r�aL1- SAeM, AIC Z7 /O2 — 1 Z%O
Phone: 3 36 — 7q 3 —5705 Date: 0-- q—o l
Signature:
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, C• 1O)e-)-�615 , allotary Public far the State of K104%Caro1"County of
pe.rSO Y1 do hereby certify that Ar-V-- `tiC Cr ] D b personally appeared before me this 4�h
day of ©C DtPW7 , ZC>O 4 , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
`j � � C • ��:1 l��,f 1
�U �f0'iFli�` D�tS'
My commission expires Iz--01-;?oo-1
Form SWU-107 Rcv 3.99 Page 4 of 4

/'`
11., h�
(�
_ _ •` �^ d
� S
m r i
� : r�
' „�'� -��
W.
.s

Permit No. 56vX0 ¢1C0I
(to be provided by D;YQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater'management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all Stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : BB&T, Sneads Ferry,. NC
Contact Person: Archie Cribb Phone Number: ( 336) 703-5705
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 2 in Drainage Area 2
(from plaits) (from Form SPVU-101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Sand
Infiltration Rate 2.9 in/hr in/hr or ef/hr/sf (circle appropriate units)
SHWT Elevation 35.0 fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume
1,672
c.f.
Design Storm
1.5
inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time
0.30
days
Perforated Pipe Size
NA
inch diameter
Perforated Pipe Length
NA
ft.
No. Observation Wells
0
(tnay be required on a case -by -case basis)
Stone Type (if used)
NA
Stone Void Ratio
NA
Trench Elevations (in feet mean sea level)
Bottom Elevation 37 finsl
Storage/Overflow Elevation 38.33 fmsl
Fonn SWU-107 Rev 3.99 Page i of 4

Trench Dimensions (see plan sheet C-3, and Infiltration Area Calculations)
Height 1.33 ft.
Width —27 ft.
III. REQUIRED ITEMS CHECKLIST
Length ---51 ft.
Volume Provided 1,856 cu.ft.
(1,856 cf in Rainstore Units, 0 cf aboveground)
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that 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. Attach justification if a requirement has not been met.
Annlicants Initials
DB a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
DB b. System is located at least 100 feet from water supply wells.
DB c. Bottom of system is at least 2 feet above the seasonal high water table.
DB d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
DB e. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
DB f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
DB g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
DB h. System is not sited on or in fill material or DWQ approval has been obtained.
DB i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
DB j. System is sized to take into account the runoff at the ultimate built -out potential froin all
surfaces draining to the system, including any off -site drainage.
NA k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
DB I. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
DB m. Drainage area for the device is less than 5 acres.
DB n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
DB o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
DB p. Sides of the infiltration trench are lined with geotextile fabric.
NA q. Rock used is free of fines (washed stone) and has a large void ratio.
Fonn4WU-107 Rev 3.99 r. Side to bottom area�'�� i8t Ts than 4: 1.

NA s.Observation well(s) are provided (case -by -case basis).
DB t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
NA u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a 1 inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H A000 must be designed, approved and constructed.
Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 24" , the accumulated sediment shall be removed
fib`m the system.
Form sWU-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six 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 and Title: _ `,fit , P y, L, `"7 _4.,WieUic-e, "ZIJ
Address: Qo PDX 1'2q0 WNs4on-Saleme NG
Phone: 336 - 79 3 - S70S ` Date: 10 --q —O q
Signature:
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 nanied the president.
Notary Public for the State of l l er'County of
do hereby,c fy that �r'GrI�IL' Cr ± b b personally appeared before me this 444n
day of V and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. WI e ct 1,
SEAL My commission expires g -ol '1oa7
Form SWU-107 Rev 3.99 Page 4 of 4

I

Permit No. s% 90 ¢1061
(to be provided by O iVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : BB&T, Sneads Ferry, NC
Contact Person: Archie Cribb Phone Number: ( 336) 703-5705
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 3 in Drainage Area 3
(from plaw) (from Form SWF-101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Sand
Infiltration Rate 2.9 in/hr in/hr or cflhr/sf (circle appropriate units)
SHWT Elevation 37.0 fmsl (Seasonal Nigh Water Table elevation)
Trench Design Parameters
Design Volume
1,054
c.f.
Design Storm
1.5
inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time
0.30
days
Perforated Pipe Size
NA
inch diameter
Perforated Pipe Length
NA
ft.
No. Observation Wells
0
(may be required on a case -by -case basis)
Stone Type (if used)
NA
Stone Void Ratio
NA
Trench Elevations (in feet mean sea level)
Bottom Elevation 39 fmsl
Storage/Overflow Elevation 40.33 fmsl
Form S W ii-107 Rev 3.99 Page 1 of 4

Trench Dimensions (see plan sheet C-3, and Infiltration Area Calculations)
Height
Width
1.33 ft. Length —57 ft.
—19 ft. Volume Provided 1,170 cu.0.
(1,170 cf in Rainstore Units, 0 cf aboveground)
III. 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, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stonmwater Management Pennit
Application Fonn, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
DB a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
DB b. System is located at least 100 feet from water supply wells.
ir1:?
1001
IOM
DB
DB
DB
DB
NA
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e.Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
h. System is not sited on or in fill material or DWQ approval has been obtained - (in fill).
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
in. Drainage area for the device is less than 5 acres.
n. A pretreatment device ( filter strip, grassed Swale, sediment trap, etc.) is provided.
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
p. Sides of the infiltration trench are lined with geotextile fabric.
q. Rock used is free of fines (washed stone) and has a large void ratio.
FonnR'�U-107 Rev 3.99 r. Side to bottom area Ffft,�i8t e4ss than 4:1.

NA s. Observation well(s) are provided (case -by -case basis).
DB" t.' Vegetated filter is provided for ovciflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
NA u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a 1 inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 12" , the accumulated sediment shall be removed
from,the system.
Form SWU-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six 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 and Title:eta I d
Address: Po BoX (Z QD VJns-6r)- S lern, NC 27 + 0z - )2,50
Phone: 3 -- 7O3 -S7oS Date: lo— 9 —o �
Signature:
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.
t� w a Notary Public for the State of flbr' 6 GCb I'yioL County of
C.✓50V't do hereby certify that reh'+G & %t t0personally appeared before me this
day of LUG CAQ Oti 00 and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. ffre my and official seal,
TA
AUBL�G
5 (� � My commission expires 12-Lo y 200:j
Form S W U-107 Rev 3.99 Page 4 of 4

+ _ f
S
• `F.
.�' � �
� r •'; y � � �e'
4 �
• � �!
Jf��,
�f ��
f �.

Permit No. 5w 9 O ¢ too 1
(to be provided by D IVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : BB&T, Sneads Ferry, NC
Contact Person: Archie Cribb Phone Number: ( 336) 703-5705
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 4 in Drainage Area 4
(from plans) (from Form SWU-101)
I1. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Sand
Infiltration Rate 2.9 in/hr in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 37.5 finsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume
207
c.f.
Design Storm
1.5
inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time
0.06
days
Perforated Pipe Size
NA
inch diameter
Perforated Pipe Length
NA
ft.
No. Observation Wells
0
(may be required on a case -by -case basis)
Stone Type (if used)
NA
Stone Void Ratio
NA
Trench Elevations (in feet mean sea level)
Bottom Elevation 39.5 fmsl
Storage/Overflow Elevation 39.83 fmsl
Form SwU-107 Rev 3.99 Page 1 of 4

Trench Dimensions (see plan sheet C-3, and Infiltration Area Calculations)
Height 1 ft. Length —23 ft.
Width —30 ft. Volume Provided 230 cu.ft.
(230 cf in Rainstore Units, 0 of aboveground)
111. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Storr water Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: l5
A NCAC 2H .1008.
Initial in the space provided to indicate that 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. Attach justification if a requirement has not been met.
ADRlicants Initials
DB
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
DB
b. System is located at least 100 feet from water supply wells.
DB
c. Bottom of system is at least 2 feet above the seasonal high water table.
DB
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
DB
e.Off--line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
DB
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
DB
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
DB
h. System is not sited on or in fill material or DWQ approval has been obtained.
DB
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
DB
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
NA
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
DB
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
DB
m. Drainage area for the device is less than 5 acres.
DB
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
DB
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
DB
p. Sides of the infiltration trench are lined with geotextile fabric.
NA
q. Rock used is free of fines (washed stone) and has a large void ratio.
Fonn SWU 107 Rev 3.99 r. Side to bottom area�k� i8?e�s than 4,1.

NA
DB
NA
s.Observation well(s) are provided (case -by -case basis).
t. ' Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without aver -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a I inch rainfall event and at least once a month.
Chronic high water table elevations (within I foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 6" , the accumulated sediment shall be removed
fromAhe system.
Form SWU-107 Rev 3.99 Page 3 of 4

• ti
I acknowledge and agree by my signature below that 1 am responsible for maintaining the stormwater
collection system in accordance with the six 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 and Title:,yr,
Address: PO 3oX I ZqO W i nsFon - Sa) e ? , NC 2 71 O z -1 Z 90
Phone: 336 - 703 -.57oS Date: 0 - —1 `0 e
Signature:
Note: The legally responsible party should not he a homeowners association unless more than 50% of the lots have been sold and u
resident of the subdivision has been named the president.
1, �DFt•/'' �•]�i iCkZ 15 a rotary Public for the State of iO!; County of
__�Cri do-hereby.certify that Aron'ye_ Cr s b ► D personally appeared before me this 4"
day of o,-"bD
N•�l
requirements. W lu®s,taw
-0
SEAL
and acknowledge the due execution of the forgoing infiltration basin maintenance
�Lj C-, /R-,"
My commission expires
lz%% b-IM-7
Form SWU-l07 itev 3.99 Page 4 of 4

r^ "
'-ti.
' �
��.
!n
• �
*{
i
� u �
L�
'
iF
.,�

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stonmwater management plan submittal includes a stonnwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stonnwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : BB&T, Sneads Ferry, NC
Contact Person: Archie Cribb Phone Number: ( 336) 703-5705
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 5 in Drainage Area 5
(from plans)
(from Form SWU-101)
II. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Sand
Infiltration Rate 2.9 in/hr in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 35.0 fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume
95
c.f.
Design Storm
1.5
inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time
0.06
days
Perforated Pipe Size
NA
inch diameter
Perforated Pipe Length
NA
ft.
No. Observation Wells
0
(may be required on a case -by -case basis)
Stone Type (if used)
NA
Stone Void Ratio
NA
Trench Elevations (in feet mean sea level)
Bottom Elevation 37 fmsl
Storage/Overflow Elevation 37.33 fmsl
Form SWU-107 Rev 3.99 Page 1 of 4

Trench Dimensions (see plan sheet C-3, and Infiltration Area Calculations)
Height 1 ft.
Width ---15 ft,
III. REQUIRED ITEMS CHECKLIST
Length —23 ft.
Volume Provided 115 cu.ft.
(115 cf in Rainstore Units, 0 cf aboveground)
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that 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. Attach justification if a requirement has not been met.
Applicants Initials
DB a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
DB b. System is located at least 100 feet from water supply wells.
DB c. Bottom of system is at least 2 feet above the seasonal high water table.
IW
DB
DB
DB
DB
DB
DB
NA
DB
DB
DB
DB
DB
NA
d. Bottom of the system is 3 feet above any bedrock or impervious sail horizon.
e.Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
h. System is not sited on or in fill inaterial or DWQ approval has been obtained.
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
J. Systern is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
in. Drainage area for the device is less than 5 acres.
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
p. Sides of the infiltration trench are lined with geotextile fabric.
q. Rock used is free of fines (washed stone) and has a large void ratio.
Fonn`5WU-107 Rcv 3.99 r. Side to bottom areaidniVTs than 4:1.

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six 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 and Title:
Address: PO Box 12'70 WiA5-k)h--SQleo7z NG 27102— j 2 %O
Phone: 336 —?O;� "S%OS• ,�,„ Date: T_9 oq
Signature:
Note: The legally responsible party should not be a homeowners associution unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
C - N tt i � , a Notary Public for the State of kor �" t_GrD 141 County of
F-I�V V'N , do hereby certify that ,i e. 0 010 personally appeared before me this
day of 6 -�Dy e' _ Q , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. W' �s,� ' l seat,
"OF AVBL�G cs +
soN �
SEAL CoMy commission expires lZ�o I 2D0`�
Form SWU-107 Rev 3.99 Page 4 of 4

Mr. Archie Cribb
BBBT Sneads Ferry
Stormwater Permit No. SW8 041001
BB&T Sneads Ferry Page 1 of 2
Onstow County
Stormwater Project No. SW8 041001
Designer's Certification
!, _ Szr_e��►y �ec41'e-hl , as a duty registered �eer in
the State of Korth Carolina, having been authorized to observe err 7 weekly
full time) the construction of the project,
_QS_d- �&,A .,end 4;Cr .cl C- �f��y Z 1 o w�► 17? )—
(Protect)
for A,14:j __Qa,.k _ _ _(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.
Required Items to be checked for this certification to be cohsidered complete are on
page 2 of this form. „,,,,..,,.,,,.
NA .A_R O
Noted deviations from approved plans and specifications: ='Q-; FE5Sip'ti��ti,;
.Q� SEAL
26411
�-
J.
SEAL
Signature _
Registration Number 62-01
Date MAY 2 0 ZU 11
BY:

�•
. • �:_.r
i'
. n �_s. i

Mr. Archie Cribb
` BB&T Sneads Ferry
Stormwater Permit No. SWt3 041001
Certification Requirements: Page 2 of 2
1. The drainage area to the system contains approximately the permitted
acreage.
12. The drainage area to the system contains no more than the permitted
amount of buill-upon area.
,TQ 3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
3L 5. The outlet structure is located per the approved plans.
naq_G. Trash rack is provided on the outletlbypass structure.
j g 7. All slopes are grassed with permanent vegetation.
7Q 8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause
short-circuiting of the systern.
Sg 10. The permitted amounts of surface area and/or volume have been
provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the systeni are provided, such as a vegetated shelf,
and a forebay_
14. The dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWO
Onslow County Building Inspections