SW7080916_HISTORICAL FILE_20210608 (2)

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

ROY COOPER
Govemor
JOHN NICHOLSON
Interim Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
June 8, 2021
State Employees Credit Union
Attention: Jonathan Crane, SVP, Facilities Services
P.O. Box 26807
Raleigh, NC 27611
Subject: Stormwater Permit Renewal
Stormwater Management Permit SW7080916
SECU — Barco Office
Currituck County
Dear Mr. Crane:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7080916 for a stormwater treatment system consisting of an
infiltration basin the State Employees Credit Union located at 100 Fyvie Drive in Barco,
NC expires on December 30, 2021. This is a reminder that permit renewal applications
are due 180 days prior to expiration. We do not have a record of receiving a renewal
application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Permit application forms for renewal can be found on our website at:
https://deq. nc.gov/about/divisions/energy-mineral-and-land-
resources/stormwater/stormwater-program/post-construction-2. North Carolina General
Statutes and the Coastal Stormwater rules require that this property be covered under a
stormwater permit. Failure to maintain a permit subjects the owner to assessment of
civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
roQer.thorpe cDncdenr.00v.
Sincerely,
arlt� a'a
-61 Roger K. Thorpe
Environmental Engineer
Jv North Carolina Department of Environmental Quality I Division of Energy. Mineral and land Resources
Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889
252.946.6481

ROY COOPER
Governor
JOHN NICHOLSON
Interim Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
June 8, 2021
State Employees Credit Union
Attention: Jonathan Crane, SVP, Facilities Services
P.O. Box 26807
Raleigh, NC 27611
Subject: Stormwater Permit Renewal
Stormwater Management Permit SW7080916
SECU — Barco Office
Currituck County
Dear Mr. Crane:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7080916 for a stormwater treatment system consisting of an
infiltration basin the State Employees Credit Union located at 100 Fyvie Drive in Barco,
NC expires on December 30, 2021. This is a reminder that permit renewal applications
are due 180 days prior to expiration. We do not have a record of receiving a renewal
application.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal. Permit application forms for renewal can be found on our website at:
https://deq.nc.gov/about/divisions/energy-mineral-and-land-
resources/stormwater/stormwater-program/post-construction-2. North Carolina General
Statutes and the Coastal Stormwater rules require that this property be covered under a
stormwater permit. Failure to maintain a permit subjects the owner to assessment of
civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
rope r.thoroe(cD ncden r. Q ov.
Sincerely,
Roger K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889
252.946.6481

WO —To Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
R—
--i
Mr. Robert S. Hall, Sr., Executive VP
State Employees' Credit Union
PO Box 26927
Raleigh, NC 27611
Dear Mr. Hall:
Coleen H. Sullins, Director
Division of Water Quality
Subject: Stormwater Permit No. SW7080916
State Employees' Credit Union — Barco Office
High Density Project
Currituck County
The Washington Regional Office received a complete Stormwater Management Permit
Application for State Employees' Credit Union — Barco Office on September 19, 2008. 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. SW7080916 dated October 2, 2008, for the construction of the subject
project.
This permit shall be effective from the date of issuance until October 2, 2018, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have
the right to request an adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. 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 Samir Dumpor, or me at [phone].
Sincerely,
Al Hodge IIIIVV////
Regional Supervisor
Surface Water Protection Section
AH/sd: J:\WPDATA\WQS\Samir - State SW\Permits - Infiltration
cc: Kim Hamby, Hyman & Robey, PC
WCrrituck County Building Inspections
ashington Regional Office
Central Files
North Carolina Division of Water Quality Internet www.ncwaterqualitv.ort
943 Washington Square Mail Phone [phone]
Washington, NC 27889 Fax [phone]
Nne
orthCarolina
Nationally
7«EqualBppoHen"ffmnatn2;4stion-EmplW ReEystedlt@%-Pas osumerPapeF

State Stormwater Management Systems
Permit No. SW7080916
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
State Employees' Credit Union
State Employees' Credit Union — Barco Office
Currituck County
FOR THE
construction, operation and maintenance of an infiltration 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.
This permit shall be effective from the date of issuance until October 2, 2018, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 62,150 square feet of
impervious area. This basin must be operated with a 30' vegetated filter.
The tract 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.
6. The following design criteria have been provided in the infiltration basin and must

Permit No. SW7080916
be maintained at design condition:
a. Drainage2Area, acres:
Onsite, ft
Offsite, ft2:.
b. Total Impervious Surfaces, ft2:
C. Design Storm, inches:
d. Basin Depth, feet:
e. Bottom Elevation, FMSL:
f. Bottom Surface Area, ft2:
g. Bypass Weir Elevation, FMSL;
h. Permitted Storage Volume, ft3:
i. Type of Soil:
j. Expected Infiltration Rate, in/hr:
k. Seasonal High Water Table, FMSL:
I. Time to Draw Down, hours:
M. Receiving Stream/River Basin
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
2.66 ac (116,103 sf)
110,828
5,275
62,150
1.00
1.10
7.50
5,056
8.60
6,616
State
6.0
3.00
2.2
Coinjock Bay / Pasquotank River Basin
30-1-6
"SC"
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. Mowin.9 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, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
— - - ----- --_Rage-3_of 7 — - -- --- -

State Stormwater Management Systems
Permit No. SW7080916
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.
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.

Permit No. SW7080916
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.
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.
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.
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.
10. This permit shall be effective from the date of issuance until October 2, 2018.
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.
Permit issued this the 2nd day of October, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
Division of Voter Quality
By Authority of the Environmental Management Commission
Permit No. SW7080916
--- --- --- --------Page 5 of-7 — -- — --

State Stormwater Management Systems
Permit No. SW7080916
State Employees' Credit Union — Barco Office
Stormwater Permit No. SW7080916
Currituck 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:.
SEAL
Signature
Registration Number
Date

Permit No. SW7080916
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 weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the 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
Currituck County Building Inspections
-- - Page=Zof_7 -- - -

waS-'-C C'6p"C
DWQ USE ONEY
Fee'raid 11emu tNurnber,
SEP 19 200S �Stafe of "North Carolina
PepArbnedt,,of:l�niiir6nineni-,�-arid:Naiiiral,,lt4�sbtiice§;
[)VVQ.WARO Divlslonof,Wat&Quality
STORMWATER!MANAGEMENT FERMITAPPLICAT ' I - ON,FORK
This form n'iay be ph6i6copied',for use, as an origin(
GENqkA0NPOkMAtibN
1. 'Applicants name (specify the name of the corporation, individual , etc. -.who owns the project):
state),-Ein6loyeesl Credit.Uniorf
2; Print Owner/$jgning'Official's name and ti tle (Pierson legally 1. gors 'res responsible - -1acility.and , compliance);: r
,Roberti S. Hall, Sr'. rExecutive_vp
3. Mailing P .Ad dress4or.person listed in iteitem2 above:
b-ove:
b 'Box. 26927
City:: Ral,eicih. State:, NC Zip:', 27611
Phorle:,( 91.9 839-5606 Fa)&. ( 91-9 -) 839--5353
.4' Project Name (subdivision facility; or establisfundfit name - should I be corisisti?ht;k;ith.orojktnaiiie,dfi Plans,
specifications, letters; operation ancilmainteriance aireemerits, etc:):
State Employees'- credit Union:-- Barco Offs c-e-
5'. Location of Project (street address):
City:; Barco — County:-Curritu'ck — Zip: 27917
6. Directions to project (from nearest major intersection):
From the intersection ofU - S 158 and NC 168, travel no on [IS 168
Fy-vie Drive.
7. Latitude: -* 6 -n,'
Longitude: 7r, 0 CA i 42f W I of project
:8. Contac(person who canonswer,questions about the project:
Marne: Kirn.Bsty
Telephone Number: 2r,2
Email:- kimPhyrnanrobey.com
'11. PERMIT INFORMATION:
1. Specify Whether project is (check one): [3New ORenewal []Modification
2. If this application is bei.ng submitted as the result of a renewal or modificatiori.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 DRedevelop E]General Permit C]Universal SMP E]Other
4; Additional Project Requirements (check applicable blanks; in formation.on required state permits can be
Form SWU-101 Version 03.27.08 Page I of 4

obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control 0404/401 Permit EINPDES 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 an underground
collection system and routed to an infiltration basin designed to store
runoff.
2. Stormwater runoff from this project drains to the Pas7uptankRiver basin.
3. Total Property Area: 3.02 acres 4. Total Wetlands Area: 0 acres
5. 100' Wide Strip of Wetland Area: 0 acres (not applicable if no wetlands exist on site)
6. Total Project Area**: 3.02 acres 7. Project Built Upon Area: 44 %
8. How many drainage areas does the project have? 2
9. 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.
For high density projects, cow lete the table with one drains a area for each engineered stormwater device.
asm Information
Dramage rea
Drainage Area
Receiving Stream Name
Coin'ock Bay
Coinjock Bay
Stream Class & Index No.
SC 30-1-6
SC 30-1-6
otal Drainage Area s
116,103 SF
49,901 SF
On -site Drainage Area s
110,828 SF
20,138 SF
Off -site Drainage Area s
5,275 SF
29,763 SF
Existing Impervious Area(sf)
1,781 SF
5,423 SF
Proposed Impervious Area (so
62,150 SF
- - 309 SE
%Impervious Area (total)
53.49%
20.66%
Impervious Surface Area
Drainage Area I
Drainage Area
On -site Buildings s
_ ..
On -site Streets s
On -site Parking s
45,981 SF
-site Sidewalks s
2,642 SF
Other on -site s
Off -site s Fyvie Drive
3,888SF
10 305 SF'
Total s
62, 150 SF
1.0,.309 SF
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 based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation. This is the area used to calculate percent project built upon area (BUA).
10. How was the off -site impervious area listed above derived? by design and topographical
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following 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. Forms can be
downloaded from littp:llli2o.etir.state.nc.us/sLi/biiil2 forms hhn - deed restrictions.
Form SWU-101 Version 03.27.08 Page 2 of 4

Form;DRPC-2`
H gh.Densrty, De a opmentsUwthiOutparcels
Porm(DRPG3
High Density Residential Subdi'visions
Foie r .
Low'Density Commercial Sulidivisions
14
Form,DRPC3l
Low DensityResidential Subdivisions.
Form pRPC=6
Loiv`Density Residential Subdivisions,with Curb. Outlets
Vr. SUPPLEMENT FORMS
the appttcable'state stormwater management perinitsupp]einent forin(s) listed below;must be':submitted for: each..
BMP specified for This project: Contact4he Stormwater,and General Permits Unit at [phone] for the status'
and availability of "these forms. Forms can be downloaded from http.7/h2o.enr.state.nc os/sn`bmp 'forms htm.
ffer:Supplement'
Form SWU-101 Version 03.27.08 Page 3 of

VI. SUBMITTAL'REQUIREMENTS
1 Please! each item:at,you'have provided the following requiredinformation by _i iitialmg in'the space provided
:Original and one'eopy,ofahe Storinwater Maria g' ment'Pe"rmitApplicahon F6rm:
i ,Origindl,dnd one Cop,t/ .df,ttie Deed`Restrichons'& Protective Covenants Form (if
required'as per Part-IV.above)
• Oikinabbfthe applicable Supplement'Form(s) and O&tyt'agreement(s),for each BMP.
• Permit appphcahompro_cessing fee of $505'(Express 54;000 FCrHD• $2,000 forLD)'
pat able to NCDENK
• !Calculations & detailed narrative descriptwnof stormwater treatment/inanagernent
•':Copy. of,any a pplicable soils report
Two'copies ofpplans-andspecifrcations,(sealed signed &:dated), including:
required)
VII. ,AGENT -AUTHORIZATION
evations, finishedfloor elevations
systems; and storrti_water control `_m_ easures.
ioneexist
;e easements, pipe sizes, runoff calculations
If-yyou,wish.to designate,authorityito another individual,or firm so that they may provide informationonyour
behalf„please complete this section:. (ex. designing engineer ortirm)
Designated agent(individual'or.firm): Hyman & Robey,, pC
Mailing Address: PO .Box 339.
City:, Camden State: NC Zip: 27921
Phone: ( 252 ) 335-1888 Fax: ( 252 ) 3'38-5552
Email: kiintahUmanrobey. com
VIII. APPLICANT'S CERTIFICATION
I, (print or typpe name of person listed in Ge
certify'that ttie information included,on
that the project will4be constructed in cc
and protective covenants will be record
NCAC 2H .1000. )
Form SWU-101 Version 03.27.08 ' Page 4 of 4
S. Hall
rved'plans, that the "required deed restrictions
project complies with the requirements of 15A
Date; 9 S^ -

Permit No.
ftD bepmvidod by DWO)
STqRMWATERMANAGENIORM_ o.
HCDENR 4di'CERTIFICATION APPLICATION 'FORM
INFILTRATION BASINSUPPLEMENT
:This form MO& tie fillid out, prihted And subrhiffed,
The 'Rdodlfedite'ms,Checkliit'(,?drt 111) musilbeohnt6d, filledoid andsubmitiedalong with all ,dfthi.re0bir6difif6iination..
Name
1mone'Number,
;Date
I brainage Area Number
Trainagearea
'Impervious area
iPercentirnpervious
;Design rAnfaii depth
Pealk Flow Calculatlons
I.yr; 24-h r runoff -dlepth
,I.-yr, 24-hir lntansity
Pre -development 1-yr, 21.hr runoff volume.
Post -development -yi'24-hr runoff volume
Aevalopme tl
PnellPost 1.-yr, Z4.-Iypeakflow control
'Storage V61666: Non -BR Waters,
Minimum design volume required
Design volurneProvIded
Storage Volume: SR Waters
17yr,,24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development I 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary.
S611 type
Infiltration rate
.SHWT elevation
Basin DesIgn'Pirameters
brawdown time
Basin side slopes
.Basin bottom elevation
Storage elevation
Storage SA
Top elevation
Basin Bottom Dimensions
Basin length
Basin Width
Bottom SA
1161,103
f?,'V
�62,,150
f? L�
153.49
%
.1
N/A
in,
h1hr
ftlisic
ftlis6c
Osec
.5844
6616
N/A in
vll�
0.09 days
3. _:I
—T. 5 fmsl
8 i6 fmsl ✓
697-1 f? ✓
11-0 fmsl
297.76 it
16.98 It
5056 fe
Form SW4014filtratfon Basin-R".2 Parts;. 611. Design SUMMDry, Page 1 Of2

Permit No.
Pa DeprvvrdedblaWO)
Additional Information
Total Rmff vohme caphred by basin
1.7 a h
Length of vegetative Alter for overflow
48 A
Distance W Sh Wre
+T- 165 A
Distance ban swlece waters
I AOO A
Distance ban water Supply wee(s)
—N/A A none known of in imediate area.
Separation born tmperviols sod fayer
N/A fl
NaWrally aauring sod above slats
7+ a
Bottom covered vdth e-in of dean sand?
Y )Y o M
Proposed drainage easement provided?
N )Y or N) located entirely on owners property
Capum all runoff at ultimate IRdtl tA7
Y )Y w N)
Bypass provided Wr larger slo ?
Y )Y or N)
Pretreatment device provided
catch basins
Fwm SW401 Mfiftm0 883 tR"I P.a. L a 11. NO,. Summery, PI.2 of l

... .. fill Pt
IT

Permit
(to be provided by D WQ)
Ill.;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.
(4- _
f` 1 201
1. Plans (1" - 50' or larger) of the entire site showing:
C 510 2
- 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.
ail
C 12 O 1
2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing:
C 510 2
- Bypass structure,
- Maintenance access,
- Basin bottom dimensions,
- Basin cross-section with benchmark for sediment cleanout,
- Flow distribution detail for inflow,
- Vegetated filter, and
- Pretreatment device.
A&
C 12 01
3. Section view of the infiltration basin (1" = 20' or larger) showing:
C 510 2
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
—Wh
at
4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
A6�h
a cl
5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
r,� I
kAl
investigation request form. County soil maps are not an acceptable source of soils information.
C 12 01
6. A construction sequence that shows how the infitlration basin will be protected from sediment until the
entire drainage area is stabilized.
'- f
7. The
encl
supporting calculations.
'',.
r� t
atta
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
rk
N / A
9. A copy of the deed restrictions (if required).
Form SW401-Infiltration Basin-Rev.2 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1

Permif Numbem
(to .be proJided by'DWQ),
Drainage Area,Number:
Infiltration Basin;Operation',and;Maintenance Agreement
hwill keep a maintenance reeord:on this BMP This maintenance record will be'kept;in'a,
log'ina;known set'loceition. Any, deficient BMFelemeritsnoted in the inspection.wiWbe!
corrected repaired -or replaced tmmediateIf. These deficiencies,'can affectthe integrity
ofstructures, safety of the public, and the removaLefficiency of the BMP.
Importantmaintenance procedures:
The didiiia, gefarea.7 will be'carefullymanage&to reduceithe':sedimenCload to the
infiltratiow,basim
— irinnediately'after;th"e'infiltration basin igestablished,.the vegetatton'wilLbe
watered twice weekly if needed until the plants become'established (commonly
six,weeks).
- 'No;portiomof the irrfiltration.basin willibeifertilized .after the initial.fertilization
:that is'.required to e-stablish the vegetation.
— The vegetation in'and around the basin will be a aintained at b lieight'of
approximately. sz' inches:
After the irifiltratiorrbasiwis established, it will beinspected-oncea quarter and within
24 hours'after every storm eventgreater than 1.0 ihehes'(or'1.5 inchi "s4'in a Coastal
County): Records _of operatiomand maintenance will be'kept in a known set location
and will be available upon -request
Inspection4activities shall be performed as follows. Any pioblenis that are found shall'
be repaired immediately:
BMP element:
Potential -problem:
How I will'remediate the"problem-'—
The entire BMP
Tiaih/debris is present.
Remove-the'trash/debris.
The perimeter of the
infiltration basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
groun&coverand water until it is
,established. Provide lime'and a
one-time fertilizer application.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe:' Dispose of'the
swale
applicable).
sediment off=site.
The pipe is cracked or
Replaceithe pipe.
otherwise damaged (if
a licable).
Erosion'is occurring in the
Regrade the-swale if necessary to
swale (if, applicable).
smooth it over: and provide erosion
control devices such as reinforced
turf matting or.riprap to avoid
future problems with erosion.
FonnSW401-Infiltration BasinO&M-Rev.3 Page I of

;BMP'elementi--
SPoteritial-, roblem:...-__-.,.. _
iHow:I•.will•remediate,thel roblem:-
The.fo ebay' - - -
-Sddtment hasiiccumulated
S6kh foi the'si5d&e of'the
,andaeduced`the depth W 75%
of the ortgm'I desrgndepth_
sediment and. remedy,'.the:problem if
possible Remove the sediment ana
dispose of it in a location where,it;
will,not,cause iinpacts,to streams,or.
__.._
the'BISIP.
Erosioii has occurred or
Provrdeadditiorial erosion
,riprap:is displaced.
profectibn such as reinforced turf
matting or riprap if needed to
reveritfuture erosion"roblems.
Weeds are,present:
Remove the.weeds, preferably by
hand If pesticides are_used,'wipe
them on the plants rather than
..
.. _
spraying. .
The main treatment area
.A;visible layer of sediment
Search for the,source'of the
has accumulated.
sediment and remedy the -problem if
possible: Remove the sediment and
dispose of it in a location,whereiit
will -not cause impacts'to streams or
the BMP. Replace anyvnedia that
was removed in the process.
Revegetate disturbed areas
immediately.
Water is standing'more than
Replace thetop fetvinches of filter
5'days:after -a storm event:
media an&see if.this corrects the
standing water problem. If
ievegetate immediately: If not,
consult an appropriate professional
for a more extensive repair.,
Weeds and noxious plants:are
Remove,the plants by hand or by
growing in the,mairn
wipinglthem.with pesticide (do not
treatment area:
spray).-,
The embankment
Shrubs or trees have. started
Remove shrubs or trees
to grow on the embankment.
immediately.
An annual inspection by:a i,
Make all needed repairs..
,appropriate, professional
shows that the'embankment
,needs repair.
The outlet device
Clogging has occurred..
Clean out the outlet device. Dispose.
of the, sediment off site:
The outlet deviceis damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight. Unit at 919-
outlet.
733-1786.
Fonn'SW401-Infiltration Basin O&M-Rev.3 Page 2 of-3

Permit Number:
(to, be provided i6yD[f Q)
acknowledge and agree'by my sighatu"re below th5CHffi4responsilil6forthe
performance of fhq maintenance procedures listed;above' ;f;dgree;to notify DW,Q';of any
problems with the system; orprior to any cbanges to,the;system or,responsNe€party.
Pro)eduh-amei State:Dnploy2es'� CreditUnion=+Barco office;
BMP:drainage.'area number,: 1
Note: The legallyresponsible'paity should not be ati"ome_owneis association unlessmorethan 50%:of
the lots have iieen sold and a iesident of the subdiv-ision has been named the president
12L1 l-k A VNn 1.,� (MU-2-tom ,&Notairy Public for the State of
County of 1.00 K -P , do hereby:certify that,
:before fie this 5
day of !*-}- M � -e- F , aOO, and acknowledge the due execution of the
forgoing infiltration basin niaintenance requirements. Witness, myhand.and:offtcial seal,
r P,ptN� W q
r
a� A G O
w„ COUN
SEAL
My commission expires Li QV `1 i a0
Form SW401-Infiltration Basin O&M-2ev:3 Page 3 of 3

Z� '� � � ®
3»� »c/�� \
6�Z� ® � � .
. E �y
l7[ /I2 2R }
�� _�
�v gels

RE: SECU - Barco additional information request
Subject: RE: SECU - Barco additional information request
From: "Kim Hamby" <[e-mail]>
Date: Wed, 1 Oct 2008 15:47:33 -0400
To: "'Samir Dumpor"' <[e-mail]>
Samir,
i
Here is the revised supplement sheet you requested. The vegetative
filter is 48' from the FES to the existing ditch. Please let me know if
you need anything else.
Thank you,
Kim
-----Original Message -----
From: Samir Dumpor [mailto:[e-mail]]
Sent: Wednesday, October 01, 2008 2:35 PM
To: [e-mail]
Subject: SECU - Barco additional information request
Kim,
please find attached an additional information request for this project.
The due date for additional information is October 8, 2008. When you
revise the supplement page, you can e-mail it to me, so I can proceed
with the issuance of a permit.
Thanks
Samir
Content -Type: application/pdf
Content -Encoding: base64
1 of 1 10/2/2008 7:47 AM

..,I.JI!I' .. .1) it ; . 1 I I " J.. II i.- 1I. .I
1..:•r r,?7 ,'rl:. r: rmI'! 2 I '15� r G '
1:ilJ ii'.'I'lll!�T /111�A: •.� "i.f•, e �., Ct/'•.; #
. ,i,L1. � t.:-1 .� t ..l •I' . t•)2.I . .F!'J f'� _ S2.Ct
r. Il.rbflGl� U Sr `initJ(l :I flA>f- 'I' JWIA' 1,Tl -•'"

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
11:
State Empl ees' Credit Union
Attn.: Ro rt S. Hall, Sr., Executive VP
P.O. x 26927
Ra gh, INC 27611
Subject:: Stormwater Review SW7080916
State Employees' Credit Union — Barco Office
Currituck County
Dear Mr. Hall:
This office received a Coastal Stormwater permit application and plans for the subject project on
September 19, 2008. A preliminary review of your project indicates that before a State Stormwater
permit can be issued the following additional information is needed:
1. Revise page 2 of 2 of the Infiltration Basin Supplement to show that the vegetative filter is
provided and show the length of the filter.
2. Provide 2 revised supplement sheets.
The above requested information must be received in this office prior to October 8, 2008 or
your application will be returned as incomplete. The return of this project will necessitate resubmittal of
all required items including the application fee. If you need additional time to submit the required
information, please mail or fax your request for time extension to me at the Letterhead address and
include the application number on the request. The request must include justification for the amount of
additional time needed. The request will only be granted for justifiable delays that are unforeseen and
beyond the owner or consultant's control.
You should also be aware that the Stormwater Rules require that the permit be issued prior to
any development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North
Carolina General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day.
Please reference the Stormwater Project Number above on all correspondence. If you have
questions, please feel free to contact me at [phone].
Sincerely, _
�r
Samir Dumpor, PE
Environmental Engineer
Washington Regional Office
cc: ✓ Washington Regional Office
Kim Hamby, Hyman & Robey, PC
North Carolina Division of Water Quality Internet: www.ncwaterqualiry ore
943 Washington Square Mall Phone [phone]
Washington, NC 27889 Fax [phone]
Nne
oithCarci ina
Natumlly
An Equal Opportunity/Affirmative Action Employer— 50 % Recycled110% Post Consumer Paper

�ern
— S VV 70$0 glCo.
NCDENR
North Carolina Department of Environment and Natural Resources
Request for Express Permit Review
FILL-IN all information below and CHECK required Permit(s). Fax or email this completed form along with a narrative
and vicinity map of the project location to the appropriate One -Stop Coordinator:
Fayetteville or Raleigh Region -David Lee 919-791-4203; david.leena ncmail.net
• Mooresville & Asheville Region -Patrick Grogan 704-663-3772 or patrick.grogan a(Dncmail.net
• Washington Region -Lyn Hardison 252-946-9215 or lyn.hardison(ailncmail.net EXPRESS
Wilmington Region -Cameron Weaver 910-350-2004 or cameron.weaverna,ncmail.net
SEP 19 2008
Project application received after 12 noon will be stamped in the following work day.
APPLICANT Name 4pbP_r+ r. Eyeo . \/P NC DENR
Company5�[&e, j= Credi+ Uknion
PROJECT
or
TRIBUTARY TOOniq ioo-K C5o SURFACE WATER CLASSIFICATION 5-
-e t-nko Niee- —v-pdit Limon— Bo.rOU County rri et-
or
❑ STREAM ORIGIN Determination: of Stream calls; Stream Name
STORMWATER ❑Low Density ❑ High Density -Detention Pond
❑ Low Density -Curb & Gutter High Density -Infiltration
WETLANDS MUST BE ADDRESSED BELOW
❑ High Density -Other
❑ Off Site
❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
� �q � U
LAND QUALITY Erosion and Sedimentation Control Plan with acres to be disturbed.(CK #�J 1 (for DENR use))
WETLANDS (401): Check all that apply
Wetlands on Site ❑ Yes ❑ No
Wetlands Delineation has been completed: ❑ Yes ❑ No
US ACOE Approval of Delineation completed: ❑ Yes ❑ No
404 Application in Process w/ US ACOE: ❑ Yes ❑ No
Perennial, Blue line stream, etc on site ❑ yes ❑ No
Isolated wetland on Property ❑ Yes ❑ No
/ Buffer Impacts: ❑ No ❑ YES: acre(s)
/ Minor Variance: ❑ No ❑ YES
Major General Variance ❑ No ❑ YES
401 Application required: ❑Yes ❑ No If YES, ❑ Regular
/ Permit Received from US ACOE ❑ Yes ❑ No
The legislation allows additional fees, not to exceed 50% of the original Express Review permit application fee, to be
charged for subsequent reviews due to the insufficiency of the permit applications.
For DENR use only
Fee Split for multiple permits: (Check # ) Total Fee Amount $ �Q
SUBMITTAL
DATES
Fee
SUBMITTAL DATES
Fee
CAMA
Variance ❑ Ma'; ❑Min
SW HD; ❑ LID)
d
401:
LDS
CC>
Stream Deter,_

HYMAN ■
ROBEY-E]
September 17, 2008
Mr. Scott Vinson
Dept. of Environment and Natural Resources
Water Quality Section
943 Washington Square Mall
Washington, NC 27889
5�P 1 q 2V
Subject: Stormwater Management Permit
Express Review — re -submittal
State Employees' Credit Union
Barco Branch
Project # 080019
Dear Scott:
Enclosed for your review and approval, please find the following items:
1. Two (2) copies of sheets L1101, L1201, L1301, C1101, C1201, C5101 and
C5102 of the plans for the above referenced project.
2. The original and one (1) copy of the Stormwater Exemption Application and
required supplements.
3. Two (2) copies of the project description, soils report and calculations.
4. Two (2) copies of the deed for the property.
5. Check in the amount of $4,000.00 for the required fee.
If you have any questions, please do not hesitate to call this office at [phone].
Si cerely,
imberly D. H�fnby
Sr. Project Manager
cc: file
OBrien Atkins

North Carolina Secretary of State
Page I of 1
CORPORATIONS
North Carolina
Elaine F. Marshall DEPARTMENT OF THE
Secretary SECRETARY of STATE
PO Box 29622 Raleigh, INC 27626-0622 19191807-2000
Corporations Home
Search By Corporate Name
Search For New Corporai.ion
Search By Registered Agent
Important Notice
Corporations FAQ
Homeowners' Association FAQ
Tobacco Manufacturers
Dissolution Reports
Non profit Reports
Verify Certification
Online Annual Reports
LINKS & LEGISLATION
KBBE 328 Annual Reports
SOSID Number Correction
2001. BIII Summaries
1999 Senate Bills
Annual Reports 1997
Corporations 1997
Register for E-PrOCLII'emem
Dept. of Revenue
ONLINE ORDERS
Start An Order
New Payment Procedures
CONTACT US
Corporations Division
TOOLS
Secretary of State Home
Secretary of State Site Map
Printable Page
Date: 9/17/2008
Click here to:
View Document Filings i Sign Up for E-Notifications i
Corporation Names
Name Name Type
NC State Employees' Legal
Credit Union
Non -Profit Corporation Information
SOSID:
0923463
Status:
Current -Active
Date Formed:
6/4/1937
Citizenship:
Domestic
State of Inc.:
NC
Duration:
Perpetual
Registered Agent
Agent Name:
Blaine, James C.
Registered Office
1000 Wade Ave.
Address:
Raleigh NC 27605
Registered Mailing
PO Box 27665
Address:
Raleigh NC 27611
Principal Office
www.ncsecu.org
Address:
Principal Mailing
No Address
Address:
http://www.secretary.state.nc.us/corporations/Corp.aspx?Pitemld=8231747 9/17/2008

North Carolina Secretary of State
Page I of 1
CORPORATIONS
North Carolina
Elaine F. Marshall DEPARTViENT OF-rt-IE
Secretary SECRETARY OF STATE
PO Box 29622 Raleigh, NC 27626-0622 (919;1807-2000
Cotporations Flome
Search By Corporate Nan'ie
Search For New Corporation
Search By Registered Agent
Important Notice
Corporavions FAQ
Homeowners' Association FAQ
Tobacco Manufacturers
Dissolution Reports
Non -Profit Reports
Verify Certification
Online Annual Reports
LINKS & LEGISLATION
KBBE B2B Annual Reports
SOSID Number Correction
2001. Bill Summaries
1999 Senate Bills
Annual Reports 1997
Corporations 1997
Register for E-Procm einent
Dept. of Revenue
ONLINE ORDERS
Start An Order
New Payment. Procedures
CONTACT US
Corporations Division
TOOLS
Seoetary of State Home
Secretary of State Site Map
Printable Pace
Date: 9/17/2008
Click here to:
View Document Filings I Sign Up for E-Notifications I
Corporation Names
Name Name Type
NC State Employees' Legal
Credit Union
Non -Profit Corporation Information
SOSID:
Status:
Date Formed:
Citizenship:
State of Inc.:
Duration:
Registered Agent
Agent Name:
Registered Office
Address:
Registered Mailing
Address:
Principal Office
Address:
Principal Mailing
Address:
0923463
Current -Active
6/4/1937
Domestic
NC
Perpetual
Blaine, James C.
1000 Wade Ave.
Raleigh NC 27605
PO Box 27665
Raleigh NC 27611
www.ncsecu.org
No Address
http://www.secretary.state.nc.us/corporations/Corp.aspx?Pitemld=8231747 9/17/2008

Upstream Elevation
Z_ 10
C
0
9
w
n
N
0
E 2
Conduit Link- 37 from JB to Node36
[Max Flow = 5.2515][Max Velocity = 9.23]
J
Downstream Elevation Flow
=J J JJ
Velocity
0
1 Sun 3AM 6AM 9AM 12PM 3PM 6PM 9PM 2 Mon 3AM 6AM 9AM 12PM 3PM 6PM 9PM 3 Tue
Jan 1995 Time
Conduit Link21 from Node36 to Node19
[Max Flow = 5.2514][Max Velocity = 1.44]
�J JJJJ
Upstream Elevation Downstream Elevation Flow Velocity
0--
1 Sun 3AM 6AM 9AM 12PM 3PM 61PM 9PM 2 Mon 3AM 6AM 9AM 12PM 3PM 6PM 9PM 3 Tue
Jan 1995 Time
oil
1.5
0.5 N
m

Link Table
Name
Link29
Diameter
(Height)
ft
1,500
Length
g
ft
28.000
Upstream
Invert
Elevation
7.650
Downstream
Invert
Elevation
7,000
Special
Conduit
ConShape
Shape
Circular
Roughn
ess
0.011
Conduit
Slope
2,321
Upstream
Node Name
K
Downstream
Node Name
J
Max Flow
ft 3/s,
(�
m 3/s)
3.291
Max Velocity
(fus, m/s)
ft/s
1.840
Max
X-Sectional
Area (ft 2,
1,820
Link30
2.000
103,000
7.000
7.000
Circular
0.011
0.000
J
I
3.831
1,210
3.290
Link31
2.000
110.000
7.000
7.000
Circular
0.011
0.000
I
H
3.826
1.210
3.290
Link32
1.500
58.000
7.000
8.000
Circular
0,011
-1,724
H
G
4,165
2,340
1,810
Link36
1.000
66.000
8.600
8.400
Circular
0.011
0.303
G
JB
5.251
6,630
0.800
Link37
1.000
47.000
8.400
8,250
Circular
0.011
0.319
JB
Node36
5.251
9.230
0-570
Link21
2.000
50.000
8.250
8.000
Trapezoid
0.040
0.500
Node36 INodel9
5.251
1440
11650
- 9,IZEAL
sesso
a
09/17/08 14:34:33 1/1

Node Table
Name
Subcatchm
nt
Node
Name
Area
ac
Maximum
w
Cron
Elevation
Invert
Elevation
evaon
It
Ground Elevation
(Spill Crest)
ft
Max Water
Elevation
It
Pervious Area
Curve Number
Time of
Concentration
(or Parameter
Continuity
Error Volume
(% of Node)
Node19
Node19
10.000
T000
10.000
T269
0.000
0.000
0.000
K
1
K
0.860
11.200
7.650
11,200
10.026
86.000
10.000
-0.020
J
1
J
0.120
11.440
7.000
11.440
10.006
97.000
5.000
0.020
I
1
12.100
7.000
12.100
9.983
0.000
0.000
0.000
H
1
H
0.320
10.900
7.000
10.900
9.960
96.000
5.000
0.060
G
1
G
0.760
11.200
8.000
11.200
9.854
93.000
10.000
-0.030
JB
JB
9.900
8.400
11.000
9.481
0.000
0.000
0.000
Node36
Node36
111.000 18250
1t000
18.767
10,000 10.000
-0.010
YFA,
18b-0
VC I,4E`c4;r' .
08/25/08 14:35:31 1/1

G
Scale 1 : 239.76
JB
j NcdeM
Li 21
iNode19

�J
Upstream Elevation
0 9.0
iu 8.5
w
3
2
0
0
LL
1
0
1 Sun 3AM
Jan 1995
.•
Upstream Elevation
S 8.50
0
8.25
a,
w 8.00
3
2
0
0
LL
1
0
1 Sun 3AM
Jan 1995
Conduit Link37 from JB to Node36
[Max Flow = 3.4704][Max Velocity = 6.66]
Downstream Elevation Flow
=J=J zJJ
Velocity
9AM 12PM 3PM 6PM 9PM 2 Mon 3AM 6AM 9AM 12PM 3PM 6PM 9PM 3 Tue
Time
Conduit Link21 from Node36 to Node 19
[Max Flow = 3.4702][Max Velocity= 1.22]
�.I �IJJJ
Downstream Elevation Flow Velocity
6AM 9AM 12PM 3PM 6PM 9PM 2 Mon 3AM 6AM 9AM 12PM 3PM 6PM 9PM 3 Tue
Time
4 0
2 N
I
1.0 <
a
0
0
0.5
M

Conduit Link38 from J to Node37
[Max Flow = 3.5260][Max Velocity = 2.36]
Upstream Elevation Downstream Elevation
W d = ft
Flow Velocity
.,..... ,._. .......... _.... _. _ - --------
1 Sun 2 Mon 3 Tue
Jan 1995 Time
Conduit Link39 from I to Node37
[MaxFlow= 1.5136][Max Velocity =4.81]
Upstream Elevation Downstream Elevation
Flow Velocity
9.5
r 9.0
c
O
ro 8.5
w
8.0
T5
2.5
1.6
1.4
2.0
1.2
1.0
1.5
i
0.8
m 0.6
1.0
°,
3 0.4
0.2
0.5
-0.0
-0.2
-0.0
-0.4
-0.6
-0.5
-0.8 _
1 Sun
Jan 1995
2 Mon 3 Tue
Time
Conduit Link4O from H to Node37
[Max Flow = 3.5446][Max Velocity = 2.531
Upstream Elevation Downstream Elevation
m d ti�
Flow Velocity
9.5
9.0
C
O
8.5
w
8.0
T5
5.0
3.5
4.5
3.0
4.0
2.5
3.5
3.0
2.0
2.5
m
1.5
N
2.0
- a
1.0
E-U_
15
0.5
1.0
0.0
0.5
-0.5
0.0
-1.0
-0.5
-1.5
1 Sun
Jan 1995
2 Mon
Time
3 Tue
[ 2.5
12.0
1.5
i 0.5
m
-0.5

Link Table
Name
drawdown
Diameter
(Height)
ft
0.160
Length
ft
33.000
Upstream
Invert
Elevation
0.000
Special
Conduit
Shape
Shape
Circular
Roughn
ess
0,014
Conduit
Slope
0.000
Upstream
p
Node
Name
Node13
Downstream
Node Name
Node38
Max Flow
(ft3/s,
"
m"3/s)
0.702
Max VelocityMax
(fUs, m/s)
ft/s
0.850
X-Sectional
Area (ft^2,
1.000
Link29
1.500
28.0 00
7.650
A7,500
Circular
6011
2.321
K
J
3,316
1.830
1.820
Link30
2.000
103.000
7.000
Circular
0.011
0.000
J
1
1.209
0.380
3.290
Link38
1.500
15.000
7.600
Circular
0.011
0,667
J
Node37
3.526
2360
1.850
Link31
2.000
110.000
7.000
Circular
0.011
0.000
1
H
0,933
0,350
3.290
Link39
L500
15.000
T600
17.500
Circular
10.011
0.667
1
Node37
1.514
4.810
1.850
Link32
1.500
58.000
7.000
8.000
Circular
0.011
-1.724
H
G
2.458
1.360
1.810
1500
15.000
7.600
7.500
Circular
0.011
0.667
H
Node37
3,545
2.530
1.850
000
66,000
8.600
8.400
Circular
0.011
0.303
G
JB
3.471
4.360
0.800
EjLink40
000
47,000
8.400
8.250
Circular
0.011
0.319
JB
Node36
3.470
6.660
0.520
?000
50.000
8.250
8,000
Trapezoid
0.040
0.500
Node36
Node19
3,470
1.220
2.840
000
50.560
7.500
7.450
Trapezoid
0.045
0.074
Node37
Node13
4.883
0.040
248.260
O 9
p� Ai AL
8550
MEE4•'
09/17/08 1425-19 1/1

Name
Node13
SubcatchmE
nt
Node
Name
Node13
Area
ac
Maximum
Crown
Elevation
11.000
Invert
eva
Elevation
ft
7.450
Ground Elevation
S ill Crest
(P )
ft
11.000
Max Water
ElevationCurve
ft
9.764
Pervious Area
Number
0.000
Time of
Concentration
(or Parameter
0.000
Continuity
Error Volume
(% of Node)
-0.240
Node19
Node19
10.000
7.000
10.000
7.150
0.000
0.000
0.000
660
11.200
T650
11.200
9.768
86.000
10.000
-0.030
J
1
J
0.120
11.440
7.000
11.440
9.765
97.000
5.000
0.020
I
I
12.100
7.000
12.100
9.764
0.000
6.000
-0.050
H
i
H
0.320
10.900
7.000
10.900
9.763
96.000
5.000
0.060
G
i
G
O.760
11.200
8.000
11.200
9.747
93.000
%000
-0.080
JB
AB
8.400
11.000
9.334
0.000
0.000
-0.010
Node36
Node36
11.000
18,250
.000
11t.000
8.580
0.000
0.000
-0.040
Node37
1
Node37
0.610
11.000
7.500
t
9.764
80.000
5.000
-0.040
Node38
Node38
9.450 17.500
111000
7.500
0.000
O.OW
0.000
"-SEAL
• •�FNGiNEE�'
F
ryii/Jl'4H C,I R99, j
09/17/08 14.24:36 i/1

E37
U441
NooeM
EAL
18550
..........
44f C RGSX
JB
i Node36
L, 21
Node19
Scale 1 : 239.76

I,'tJ�'carv.rsntr¢rmceacvei+msnmw.-'»--.i--r G3�^rr+- t-p- •.•^-p" as..
1 F PROJECT.DESCRIP�TION C , 1 ^i„ ✓
State Employees' Credit Union
Barco Office
Currituck County - North Carolina
t $e'ptei4er 17; 2008
The State Employees' Credit Union is proposing to construct a new facility on a
3.02 acre parcel of land on the east side of Highway 168 between Fyvie Drive and Pat's
Way. The site was an old home site that is currently vacant cleared land and is zoned
General Business.
Construction will consist of one (1) new building, a parking lot, one (1) storm
water infiltration basin, an underground piping system, the installation of required
landscaping and roadway improvements including a deceleration lane on Highway 168
and paving Fyvie Drive which is currently a gravel road.
On -site impervious coverage will include the proposed building that will
contribute 9,639 sf of impervious area, the parking lot at 45,981 sf and the concrete
sidewalk at 2,642 sf. Off -site coverage proposed consists of a deceleration lane and
paving/widening of Fyvie Drive. The roadway improvements will cover 14,197 sf and
will replace 7,204 sf of existing gravel on Fyvie Drive. -
According to the Currituck County Soils Maps as prepared by USDA, Soil
Conservation Service, the soils on this site are State. A soils evaluation dated January 15,
2008 prepared by Soil & Environmental Consultants, PA has been attached. According
to the report, the seasonal high water table is greater than 7' below existing grade or
approximately elevation 4.0 based on an average grade of 1 I' across the site. Borings 3
and 4 are closest to being located in the infiltration basin area. Boring 3 indicates an
infiltration rate of 2"-6"/hr from 24"-48" below grade and 6"-20"/hr at 48"-84" below
grade. Boring 4 indicates infiltration rates of 6"-20" from 25"-84" below grade. The
bottom elevation of the infiltration basin is 7.5' or about 42" below grade; therefore, we
have used an infiltration rate of 6"/hr for our calculations.
Drainage Area 1 contains 2.67 acres and encompasses a majority of the site
including all proposed on -site impervious areas and a portion of the improvements to
Fyvie Drive. This drainage area will contain 9,639 sf of building. It also contains 45,981
sf of paved parking lot, 2,642 sf of concrete, and 3,888 sf of roadway. The total
impervious area will be 62,150 sf or 53.49% of the drainage area. Runoff from the
building will be collected in a French drain system and routed through the underground
pipe system. The runoff from the parking lot will sheet flow across the parking lot to
various inlets. It will then be routed through the same underground piping system as the

i
building. The pipe system has been designed to flow to pipes that connect the three inlets
adjacent to the basin to evenly distribute the inflow into the basin at the three locations.
The first inch of runoff from the site is 5,844 cf. 6,616 cf is stored between the bottom of
the basin at 7.5' and the storage elevation of 8.6'. The bypass is 12" piping from Curb
Inlet G to Junction Box 1 to a 40' filter strip that drains to the existing roadside ditch.
The bypass pipe has a starting invert of 8.60, which corresponds to the storage elevation
in the basin. Runoff in excess of this storage volume will discharge through the bypass
into the existing NCDOT ditch that drains to the Coinjock Bay.
We modeled the site utilizing XPStorm, Storm and Wastewater Management
Model. Printouts from the model have been attached to this report. The model was run
for 48 hours with a Type III rainfall distribution for a 5.75 inch 24 hour storm. Conduit
Drawdown (Link 41) simulates the 6 inch per hour infiltration rate out of the infiltration
basin, Link IB. The infiltration rate was determined based on 6" per hour X 5,056 sf (the
area of the bottom of the basin). 5,056 sf X 0.5'/hr
3600 s/hr = 0.7022 cfs
The Node Table indicates a peak elevation in the basin of 9.76 during the 10-year storm
and that the basin only contains standing water for a few hours after the end of the storm.
Basic mathematic computations indicate a drawdown time for the design storage depth
(from 7.5' to 8.6') of 2.2 hrs (1.1' divided by 0.5'/hr = 2.2 hours). Drawdown of the 10-
year peak elevation of 9.76 can be expected to occur in approximately 4.5 hours (2.26'
divided by 0.5'/hr = 4.52 hours). Links 36 and 37 represent the 12" bypass pipe and
show a peak discharge during the 10-year storm of 3.47 cfs. Graphs for Links 38, 39 and
40 have also been included to show the peak inflow to the basin from each pipe ranges
from 1.51 cfs to 3.54 cfs. Construction sequencing and notes on the plan direct the
contractor to construct the infiltration basin and leave it "off-line" until construction is
complete. This is to be accomplished by installing temporary plugs in the three 18" pipes
that discharge into the basin. The plugs shall be removed when the site is completely
stabilized.
Printouts have also been provided for an XPStorm analysis without the infiltration
basin. This illustrates the flow to the filter strip prior to bringing the infiltration basin on-
line. The peak 10-Y@ar�tomLvelacitYin the pipe upstream of the filter strip reaches 9 23
fps while the velocity in the filter strip is 1.44 fps_A riprap apron is provided to prevent
erosion in the filter strip. The peak discharge from the site prior to using the infiltration
basin is 5.25 cfs.
Drainage Area 2 contains the remaining 1.15 acres which includes only pervious
areas around the perimeter of the site as well as the portions of the street rights -of -way
that are included in the overall project area. There is currently 5,423 sf of gravel within
this area that will be replaced with asphalt. Roadway improvements will cover 10,309 sf
for an impervious coverage of 20.66%. These areas will continue to drain as they
currently do with the exception of a small portion of Fyvie Drive that will be routed to the
existing ditch via curb and gutter.

TR-55 runs indicate a total pre -development runoff from the site during a 10-year
storm of 7.08 cfs. A portion of the site currently sheets flows toward the rear of the site.
Since the improved site will discharge to the front roadside ditch, a TR-55 run was
performed for only the front 1.33 acres that currently discharges to the same ditch. The
10-year peak runoff for this portion is 3.61 cfs. Post development discharge into the
roadside s stem durin a 10- ear storm will be 3.47 cfs according to the XPStorm model;
erefore, we have met the Currituck County requirement of limiting the post
development discharge during the 10-year storm to pre -development levels.
The total disturbed area for this development will not exceed 4 acres. Limits of
disturbance have been shown on the plans.
/q'ISEAL
0 18550 =
ICI I I I�IOg0�

INFILTRATION BASIN
RUNOFF CALCULATIONS
SECU - Barco
10 Yr, 24 Hr Storm
DETENTION POND
WATERSHED AREA:
WATERSHED % IMPERVIOUS:
BASIN BOTTOM ELEVATION:
VOLUME OF I" RAINFALL
2.67 ACRES
54 %
7.5 FT
Hyman and Robey, PC
P. O. Box 339
Camden, NC 27921
(252)-335-1888
08/25/08
Page I
AREA OF ROOFS: 0.22 AC
AREA OF PARKING/CONCRETE: 1.2 AC
AREA OF GREEN AREAS: 1.25 AC
VOLUME OF RUNOFF 5844.3 CF ` VOL(CF)=[(ROOF-1.0)+(PARKING•.95)+(GRASS"0.2)]•43,560/12
Rv = o,oS X EAL
Cj.�317 (''j 7
1�
C.iIOog `.

Proi. # 080019 - SEW Barco
08/25/08
Infiltration Basin Elevation/Storage Table
Elevation
Area (as measured in cad)
Volume (cf)
7.5
5,056 sf
8
5,919 sf
2,743.74
8.5
6,796 sf
5,925.87
8.6
6,973 sf
6,615.83
8.75
7,239 sf
7,684.64
9
7,686 sf
9,556.98
Required storage voume = 5,844 cf
qA�
9'/SEAL
18550
f'•.�' GINEEP••1 \���

Kim SECU Barco
Pre development - front only
Pasquotank County, North Carolina
Hydrograph Peak/Peak Time Table
Sub -Area Peak Flow and Peak Time (hr) by Rainfall Return Period
or Reach 10-Yr 25-Yr
Identifier (cfs) (cfs)
(hr) (hr)
-------------------------------------------------------------------
SUBAREAS
drainage a 3.61 4.54
12.15 12.15
REACHES
OUTLET 3.61 4.54
WinTR-55, Version 2003.00.24 Page 1 6/11/2008 9:59:25 AM

Kim SECO Barco
Pre development - front only
Pasquotank County, North Carolina
Sub -Area Summary Table
Sub -Area Drainage Time of Curve Receiving Sub -Area
Identifier Area Concentration Number Reach Description
(ac) (hr)
--------------------------------------------------------------------------------
drainage a 1.33 0.179 69 Outlet
Total Area: 1.33 (ac)
WinTR-55, Version 2003.00.24 Page 1 6/11/2008 9:59:37 AM

Kim SECU Barco
Pre development - front only
Pasquotank County, North Carolina
Sub -Area Time of Concentration Details
Sub -Area
Flow
Manninqs's End Wetted
Travel
Identifier/
Length
Slope
n Area Perimeter
Velocity Time
--------------------------------------------------------------------------------
(ft)
(ft/ft)
(sq ft) (ft)
(ft/sec) (hr)
drainage a
SHEET
50
0.0067
0.150
0.132
SHALLOW
100
0.0067
0.050
0.021
SHALLOW
150
0.0100
0.050
0.026
Time of Concentration .179
WinTR-55, Version 2003.00.24 Page 1 6/11/2008 9:59:46 AM

Kim SECU Barco
Pre development - front only
Pasquotank County, North Carolina
Sub -Area Land Use and Curve Number Details
Sub -Area
Hydrologic
Sub -Area
Curve
Identifier
Land Use
Soil
Area
Number
--------------------------------------------------------------------------------
Group
(ac)
drainage aOpen space;
grass cover 50% to 75%
(fair) B
1.33
69
Total Area
/ Weighted Curve Number
1.33
69
WinTR-55, Version 2003.00.24 Page 1
6/11/2008 9:59:57 AM

Kim SECU Barco - A r�q
Pre development - (d�f-aI
Pasquotank County, North Carolina
Hydrograph Peak/Peak Time Table
Sub -Area Peak Flow and Peak Time (hr) by Rainfall Return Period
or Reach 10-Yr 25-Yr
Identifier (cfs) (cfs)
(hr) (hr)
__________________________________________________________________________________
SUBAREAS
drainage a 7.08 8.92
12.19 12.19
REACHES
OUTLET 7.08 8.92
WinTR-55, Version 2003.00.24 Page 1
6/11/2008 9:56:07 AM

Kim SECU Barco
Pre development
Pasquotank County, North Carolina
Sub -Area Time of Concentration Details
Sub -Area
Flow
Mannings's
End Wetted
Travel
Identifier/
Length
Slope
n
Area Perimeter Velocity
Time
--------------------------------------------------------------------------------
(ft)
(ft/ft)
(sq ft) (ft) (ft/sec)
(hr)
drainage a
SHEET
50
0.0032
0.150
0.177
SHALLOW
225
0.0032
0.050
0.068
SHALLOW
115
0.0100
0.050
0.020
Time of Concentration
.265
WinTR-55, Version
2003.00.24
Page
1 6/11/2008
9:56:30 AM

Kim SECU Barco
Pre development runoff
Pasquotank County, North Carolina
Sub -Area Summary Table
Sub -Area Drainage Time of Curve Receiving Sub -Area
Identifier Area Concentration Number Reach Description
(ac) (hr)
-------------------------------------------_-____-----__-_____
drainage a 2.91 0.257 69 Outlet
Total Area: 2.91 (ac)
WinTR-55, Version 2003.00.24 Page 1
6/11/2008 9:33:06 AM

.:,
Kim SECU Barco
Pre development runoff
Pasquotank County, North Carolina
Sub -Area Land Use and Curve Number Details
Sub -Area Hydrologic Sub -Area
Identifier Land Use Soil Area
Group (ac)
-----------------------------------------------------------------
drainage aOpen space; grass cover 50% to 75% (fair) B 2.91
Total Area / Weighted Curve Number
WinTR-55, Version 2003.00.24 Page 1
2.91
6/11/2008
Curve
Number
69
69
9:33:47 AM

r
TRANSFER TAX AMO NT
DATFJCOI.LECTOR ao q
BOON 10 3( PAGE U 4 9 7
111111HIIVI1INIlA 1101111Hl111
Doc 1D: 0020C27A0003 Type: CRP ^
Tex COIlemOr Ce iBcation 3}ter NuD� linquem Tares Recorded: 02/15/2008 at 12:fetl2 P11 t j
Are Due. Due By3,g Cenifiallon Fee AM $5,240.00 Page 1 01 3
Excise Tex: 1870.00
expires lsa. 6e of a ar follmving certification date. Curr3tuck county, Rc
Charlene Y Dowdy Repi ster of Deeds
BN 1037 Po497-499
N(*TH CAROLINA GENERAL WARRANTY DEED
Excise Tax: 870
Parcel Identifier No. Verified by County on the _ day of 20_
By: Parecel Identifier No. 0060-000-055A-0000 and 0060-000-053F-0000
Mail/Box to: Walker 6 Rom
This instrument was prepared by: Innes 6 Innes, PLLC (WITHOUT TITLE COMMITMENT)
Briefdescription for the Index: Lot 1 , Kemnay 6 Lot 1 , Monymusk
THIS DEED made this 14th
GRANTOR
Highland Properties, Inc.
dayof February , 2008, by and between
State Employees' Credit Union
909 Halstead Blvd.
Elizabeth City, NC 27909
Enter in appropriate block for each party: name, address, and, if appropriate, character of entity, e.g. corporation or partnership
The designation Grantor and Grantee as used herein shall include said panics, their heirs, successors, and assigns, and shall include
singular, plural, masculine, feminine or neuter as required by context.
WITNESSETH, that the Grantor, for a valuable consideration paid by the Grantee, the receipt of which is hereby acknowledged, has
and by these presents does grant, bargain, sell and convey unto the Grantee in fee simple, all that certain lot or parcel of land situated in
the City of I Crawford Township, Currituck County,
North Carolina and more particularly described as follows
See Exhibit "A" attached hereto and incorporated herein by reference
The property hereinabove described was acquired by Grantor by instrument recorded in Book page
A map showing the above described property is recorded in Plat Book page
NC Bar Association Form No. 3 m 1976, Revised ® 1977, 2002 + James Williams & Co., Inc.
Printed by Agreement with the NC Bar Association - 1981 www.JamesWilliams.com

BOOK 1037PAGE0498
Exhibit A
(Highland to SECU)
LEGAL DESCRIPTION:
Lot i (one) according to the plat of"Kemnay," prepared by S. Elmo
Williams, surveyor, dated November 28, 2001, located in Crawford
Township, Currituck County, North Carolina; said plat being recorded in the
Office of the Register of Deeds of Currituck County, North Carolina, at Plat
Cabinet C2, Slide 355, and which is incorporated herein by reference. Said
Lot 1 of Kemnay is a 2.0 acre parcel.
Also included as part of this conveyance is Lot 1 (one) according to the
plat of"Monymusk," prepared by S. Elmo Williams, surveyor, dated January
10, 2003, located in Crawford Township, Currituck County, North Carolina;
said plat being recorded in the Office of the Register of Deeds of Currituck
County, North Carolina, at Plat Cabinet H, Slide 183, and which is
incorporated herein by reference. Said Lot I of Monymusk is a parcel
containing 44,494 square feet.
This conveyance is for a total of 3.02 acres which is the sum of the
above Lots.

BOOK .I U :3 1 PAGE O 4 99
TO HAVE AND TO HOLD the aforesaid Id a parcel of land and all privileges and appurtenances thereto belonging to the Grantee in fee simple.
And the Grantor covenants with the Grantee, that Grantor is seized of the premises in fee simple, has the right to convey the same in fee
simple, that title is marketable and free and clear of all encumbrances, and that Gmmor will warrant and defend the title against the
lawful claims of all persons whomsoever, other than the following exceptions:
Reservations, restrictions and easements of record. The subject property is also subject
to the folplowing restriction which shall run with the land and which shall inure to the
benefit �1 Grantoor, itg Brine LRfie and theJdr successors and/jI assigns: al JNbiect prop-
erty sha onlyy be use or be ng-relate purposes and sha not 5e auhd v e00.
IN WITNESS WHEREOF, the Grantor has duly executed the foregoing as of the day and year first above written.
Highland Properties, Inc. (SEAL)
(Entity Na )
By; O (SEAL)
. Tide: JLarryGaither President Y
z_
By: Y (SEAL)
Title: G
.a
m
By; y (SEAL)
Title- o
State of North Carolina - County of
L
O 1, the undersigned Notary Public of the County and Suite aforesaid, certify that
zpersonally appeared before me this day and
x acknowledged the due execution of the foregoing instrument for the purposes therein expressed. Witness my
hand and Notarial stamp or=1 this day of 20.
a
My Commission Expires:
Notary Public
Slate of North Carolina - County of Currituck
�I, the undmigned Notary Public of the Counryand State aforesaid, certify that
Q'i y J. Larry Gaither personally came before one this day and
�? O acknowledged that heisthe President of Highland Properties, Inc.
Z a North Carolina or corporatiorulntritatliabititrmmpmryfgetre:alymfienidpdibrriRd
partnership (strike thmugh the inapplicable), and that by authority duly given and as the set of each entity,
<_he sighed the forgoing instrument in its name on its behalf as its act and deed W' ass hand and
Notarial stamp or seal this k' dayof diSy:�:�2��
My Commission Expires:, i-/ 3 x
State of North Carolina - County of
1, the undersigned Notary Public ofthe County and Suite aforesaid, certify that
Y
3 Witness my hand and Notarial stamp or seal this day of 20_.
My Commission Expires:
Notary Public
The foregoing Cenificate(s) of is/are certified to be comet.
This instrument and this certificate are duly regisltt d at the date d time and in the Bask and Page shown on the first page hereof.
2tster of Deeds for County
By: Deputy/Assistant - Register of Deeds
NC Bar Association Fonn No. 3 ® 1976, Revised 977, 2002 * James Williams & Co., Inc.
Printed by Agreement with the NC Bar Amociai - 81 www,Jameswilliams.com

Soil & ]Environmental `Consult'ants, PA
11010 Raven Ridge Road Raleigh, N6rth Carolina 27614 • Phone: [phone] Fax: [phone]
ww.w.SandEC.com
7anuary.15, 2008
Job # 10966.S1
Geotechnologies
Attn: Ed Hearn
3200 Wellington Court, Suite G
Raleigh, NC 27615
Re: Detailed Soils Evaluation at Proposed State Employee's Credit Union, located on
Hwy 34, in Barco; Currituck County, NC.
Dear Mr. Heam
Soil & Environmental Consultants, PA (S&EC) performed a detailed`soil evaluation on
the site mentioned above located on Hwy 34 in Barco,.Currituck County, NC. We
evaluated the whole site in lieu of having been provided a mapshowing, the location
where the stol4nwaterinfiltration:basins are. proposed. At the four, locations shown on the
attached map, the following activities were performed: soil morphology profile
descriptions to seven feet, and estimation of permeability, hydraulic conductivity, and
seasonal high water table. The purpose of this evaluation was to provide you with
additional information for designing stonnwater infiltration basins.. The,following is a
brief report of the methods utilized in this evaluation and the results obtained.:
Soil/Site Evaluation -
A site evaluation was performed. by Walter Cole, and Sarah Menser (NCLSS; NCSSIT).
to acquire the information you needed. The evaluation was performed by making hand
auger borings to a depth of 7 feet at four locations which were located with a GPS .
receiver and are shown on the attached map and identifying and recording the soil
morphological conditions, at those locations; in order to develop soil profile descriptions;
which: are also included, with this report and shown on the attached map.
Soils on -site were most like the State soil,series which is well drained and has moderate
permeability, and consists of a sandy surface horizon over a sandy clay loam subsurface
horizon. The site has been cleared of vegetation and. is. noticeably hi gherin topographic
position compared to the surrounding landscape.
Under current regulations for stormwater infiltration devices,:the bottom of any
infiltration system must be a minimum oftwo feet above the seasonal high water table.
Based on our soil borings, the seasonal high water table across this site.was' greater than
84 inches,, so there should not be a problem meeting the minimum separation
requirement.
Charlotte Office' '
236 LePhillip Court, Suite C
Concord, NC 28025
Phone: [phone]
Fax: [phone]

Also, under current regulations soils must have a minimum infiltration rate of 0.52 inches.
per hour. Soil borings 1, 3; and 4 all had sandy clay loam subsurface horizons that have
an estimated hydraulic conductivity of less than the 0.52 inches per hour threshold.
Although saturated hydraulic conductivity measurements would be needed to definitively
show that these layers are below the 0.52 inches per hour threshold, .we feel that any
testing will reveal that these soils will not meet the threshold, and that the excavation of
the soil horizons and replacement with sand will,be necessary and must be proposed to
NCDWQ for them to approve on.a case -by -case basis. Depending on which area of the
site is chosen for stormwater infiltration, the following soil will most likely need to be
excavated: Boring 1, from 12"-30", Boring 3, from 14"-24", and Boring 4, from 14'%25".
Soil boring 2 had'a sandy loam subsurface horizon between 18" and 40" that was sticky
and was almost a sandy clay loam, so this soil horizon may need to be excavated. The
permeability estimates are based on the soil textures and are obtained from the USDA-
NRCS (United States Department of Agriculture - Natural Resource Conservation
Service) official series description and since the rules require a minimum hydraulic
conductivity of 0.52 inches per hour or more, the permeability. estimates were converted
to conductivity on the profile description tables. No, actual site specific testing of
hydraulic conductivity was performed.
In conclusion, depending on the NCDWQ and which location for stormwater infiltration
is chosen some natural material will have to be removed to meet the required 0.52 inches
per hour hydraulic conductivity minimum. Based on conversations with the NCDWQ, it
will be acceptable to use the removed material to create berms if necessary and to back
fill with clean sandy soil. Finally, please remember that the rules require a 30 foot
setback to all surface waters and 50 foot for SA waters, and 100 foot from any water
supply wells from the stormwater infiltration system.
Soil & Environmental Consultants; PA is pleased to be of service in this'matter.andwe
look forward to.assisting in the successful completion of the project. Please feel free'to
call with any questions or comments.
Since
Walter Cole
NC Licensed Soil Scientist #1267'
Sarah Menser
NCSSIT

SECU - Barco
Project # 10966.S1
Borinq Location 1
m i
1 e'tl
r'zon.
m
r z
,lye es
T ture.
Grade
;Structure,
iC,olist tan-Ry/
Notes
mlfin
i d
A
0.6
MY 3/3
-
sandy loam
Weak
gr
very friable
-
2 6
14 14
AB
6-12
10YR 5/6
-
sandy loam
Weak
sbk
friable
Transition
2-6
1.4 -14
Bt
12-30
10YR 416
-
sandy clay loam
Moderate
sbk
friable
-
0.6-2
0.14-1.4
BC
30-36
10YR 5/6
-
sandy loam
Weak
sbk
friable
Transition
2 6
14-14
C1
36-50
10YR 518
-
sandy loam
-
ma
very friable
-
2-6
1.4-14
C2
50-84
2.5Y 6/6
-
loamy sand
-
me
very friable
-
6-20
>14
Seasonal High Water Table: >84 inches

SECU - Barco
Project# 10966.S1
Boring Location 2
�
InwjLftan.y,,
Ho zon
(�
Nla rrz]
(Mo es)
is ox ure.
ra a
!Stcuctura
Noles4
m
, K in hr)
A
0-8
2.5Y 313
-
sandy loam
Weak
gr
very friable
-
2-6
1.4-14
AB
B-16
2.5Y 5/6
-
sandy loam
Weak
sbk
friable
Transition
2-6
1.4-14
Bt
18AB
10YR 416
-
sandy loam
Moderate
sbk
friable
Weak SCL-Clay
Accumulation
2-6
1.4-14
CB
4M2
10YR 5/6
-
sandy loam
-
me
friable
Transition
2 6
14 14
C
62-84
2.5Y 7/4
-
loamy sand
-
me
very friable
-
6-20
>14
Seasonal High Water Table: >84 inches

SECU - Barco
Project# 10966.S1
Boring Location 3
!V
= Ma,�;),
I
Mo es
extu a
Glae
Struc ure
IConsls ancy,
.'�'s
' ote
so
i
u on ,
e
KS j(mlhr
7AB
0-8
10YR 4/3
-
sandy loam
Week
gr
very friable
-
2-6
1.4-14
B-14
10YR 5/6
-
sandy loam
Weak
sbk
friable
Transition
2 6
1 4 14
14-24
7,5YR 516
sandyclay loam
Moderate
sbk
friable
0.6-2
0.14-1.4
1342
24-36
7.5YR 5/6
-
sandy loam
Weak
sbk
Ida
-
2-6
1.4-14
BC
3648
10YR 516
-
sandy loam
Week
gr
very friable
Transition
2 6
14 14
C
48-64
2.5Y 618
-
loamy sand
-
me
very friable
-
6 - 20
>74
Seasonal High Water Table: >84 Inches

SECU - Barco
Project# 10966.S1
Boring Location 4
t
�Ho zon
I D fh
(in
b a nx
P_�j
exture
f atle
Y
Struc OFF,
r k
SS
Permea If
a e
A
0-6
2.5Y 414
-
sandy loam
Weak
gr
very friable
-
2 6
14 14
BA
6-14
10YR 4/6
-
sandy loam
Weak
sbk
friable
Transition
2-6
1.4 - 14
Bt
14-25
10YR 5/8
-
sandy clay loam
Moderate
sbk
friable
Weak SCL
0.6-2
0.14-1.4
Ct
25-40
2.5Y 5/6
-
loamy sand
-
ma
very friable
-
6 - 20
>14
C2
40-60
MY 614
-
loamy sand
-
me
very friable
-
6-20
>14
C3
60-44
2.5Y 7/3
-
loamy sand
-
me
very friable
-
6 20
>14
Seasonal High Water Table: >84 Inches