SW8020821_HISTORICAL FILE_20030228

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

State Stormwater Management Systems
Permit No. SW8 020821
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Mr. Thomas B. Morris
First Citizens Bank Swansboro
Onslow 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 February 28, 2013, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
l . This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. The infiltration basin has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater control has
been designed to handle the runoff from 24,272 square feet of impervious area. The
infiltration basin is designed to store and infiltrate the runoff from 3" of rain, therefore a
vegetated filter is not required.
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.
The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
Fa

State Stormwater Management Systems
Permit No. SW8 020821
DIVISION OF
WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
First Citizens Bank Swansboro
Permit Number:
SW8 020821
Location:
Onslow County
Applicant:
Mr. Thomas B. Morris, Sr. Vice President '
Mailing Address:
First Citizens' Bank
PO Box 27131
Raleigh, NC 27611
Application Date:
February 28, 2003
Receiving Stream / River Basin:
White Oak / White Oak River
Index Number:
WOK01 20-(18)
Classification of Water Body:
"SA"
Basin Deptll„ feet:
2.5
Drainage Area, acres:
0.698
Offsite Area entering Pond, W:
2,144 ft', per engineer
Design Storm:
3"
Total Impervious Surfaces, ftz:
24,272
Bottom Elevation, FMSL:
10.5
Provided Storage Volume, ft3:
6,024
Temporary Storage Elevation, FMSL:
12.17
Outlet Control:
Bypass structure weir set at 12.17
Type of Soil:
Marvyn
Expected Infiltration Rate:
6 inches per hour
Seasonal High Water Table Elevation:
8.5 FMSL
Time to draw down:
3-5 hours
3

State Stormwater Management Systems
Pen -nit No. SW8 020821
IL SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in it's entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
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 G 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 outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. 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.
G. 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. 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.
C. Further subdivision, acquisition, or sale 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.
g. Any additional runoff from outside of the approved drainage area (either onsite or
offsitc) into the permitted system.
4

State Stormwater Management Systems
Permit No. SW8 020821
9. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
10. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
11. Prior to the sale or lease of any portion of the property, the permittee shall notify DWQ
and provide the name, mailing address and phone number of the purchaser or leasee.'An
access/maintenance easement to the stormwater facilities shall be granted in favor of the
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
12. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
13. 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.
II1. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Pennittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an application fee,
documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved. Responsibility for compliance with all permit conditions remains with
the Pennittee until such time as the Division approves the formal permit 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) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those
as may be required by this Division, such as the construction of additional or replacement
stormwater management systems.
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.
5

State Stormwater Management Systems
-Permit No. SW8 020821
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 28th day of February, 2003.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Z

Kimley-Horn
and Associates, Inc
Transmittal
Date: 02/19/03
To: Ms. Linda Lewis
Job No. 011737018
NCDENR Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: FCB - Swansboro, NC
P.O. Box 33068
Raleigh, North Carolina
27636.3068
TEL [phone]
FAX [phone]
DWQ #SW8 020821
We are sending you
® Attached ❑ Under separate cover via the following items:
❑ Shop drawings ® Prints/Plans ❑Samples []Specifications ❑ Change orders
11
Copies
Date
No.
Description
1
10/01/02
1
Revised Infiltration Basin Details - Sheet C6
1
10/01/02
1
Copy of Grading, Utility, and Erosion Control Plan - Sheet C4
1
01/24/03
1
Copy of your faxed request
These are transmitted as checked below.
® For your use
❑ Approved as submitted
❑ Resubmit
—copies for approval
® As requested
❑ Approved as noted
❑ Submit_
copies for distribution
❑ For review and comment
❑ Returned for corrections
❑ Return
corrected prints
Remarks Ms. Lewis:
The enclosed Sheet C6 is being submitted to you in response to your faxed
request dated January 24, 2003.
We have also enclosed a copy of Sheet C4 that reflects the proposed
infiltration pond wall information.
Please contact us at [phone] with any questions or comments.
Thank you for all of your assistance,
Copy To: Mr. Thomas B. Morris, FCB Signed
Brian J. Michot, P.E.

24 . P-003 � WA T� � rvc>,Eris? wrRo
0�-��.�
N0.085 P.1
Michael F. Easley, Governor
.`V William G. Ross, Jr., Secretary
r North Carolina Department of Environment and Natural Resources
} '� Alan W. KJlmek, P,E., Director
Division of Water Quajity
Wilmington Regional Office
FAX COVER SHEET
Date: yauuary 24, 2003
To: Brl Niirhbt, P.E.
Company: Wm ley -Horns and AsNociates
FAX #: [phone]
DWQ Stormwater Project Number: SW8 020821
Project Name: First Citizens Bank Svvansboro
NIESSAGE;
Dear Brian:
Please send in two c
retaining wall in sec
designed by others,
being designed by o
No. of Pages: 1
From: Linda Lewis
Water Quality Section
Stormwater
FAX # 91 &350-2004
Phone # [phone]
ies of the revised basin section detail on sheet b, which shows the
n, completely around the basin. I understand that the wall itself is being
you can simply put a plain and simple wall on the detail and note that it is
SAWQSkST0PMWA-'F\ DITrM2003T20821 JAN03
N.G. t7Msigry of WBterflusilty 927 CarQir�al QrEva xtanslan Wllmingtan, N.G. 2R'5 (914) 9$5.39g4 Fax (91pj 35p-2QD4 Cuatorner aOrviGa
800-623-n4e

r
P. 1
COMMUNICATION RESULT REPORT t JAN.24.2003 1:15pm )*
TTI NCDENR WIRO
FILE MODE __
OaG MEMORY TX
OPTION
------------------------------
REASON FOR ERROR
E-1) HANG UP
E-3) No ANSWERR LINE FAIL
ADDRESS ( GROUP )
---------------
8-9196772050
RESULT— __--PAGE-
--- ------ P. 1f1
OK
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
Michael F. Easley, Governor
William G. Ross, Jr„ Secretary
North Carolina Department of Environment and Natural Resources
FAX COVER SKEET
Alan W. Kiirne} , P,E., Director
Division of Water Qualify
Wilmington Regional Office
Date: January 24, 2003 No. of Pages: 1
T4: BrianMielt, P.F. From: Linda Lewis AV
Company: Kimley�-Born and Associates Water Quality Section -
Stormwater
FAX #: [phone] FAX # [phone]
1 Phone # [phone]
DWQ Stormwater troject Number: SW8 020821
Project Name: First Citizens Bank Stvansboro
MESSAGE; i
Dear Brian:
Please send in two codes of the revised basin section detail on sheet 6, which shows the
retaining wall in seoti?n, completely around the basin. Y understand that the wall itself is being
designed by others, sQQ you can simply taut a plain and simple gall on the detail and note that it is
being designed by o#hbrs.

F'
` OF WATER
� r
Michael F, Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
FAX COVER SHEET
Date: January 24, 2003
To: Brian Michot, P.E.
Company: Kimley-Horn and Associates
FAX #: [phone]
DWQ Stormwater Project Number: SW8 020821
Project Name: First Citizens Bank Swansboro
MESSAGE:
Dear Brian:
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
No. of Pages: l
From: Linda Lewis �Sv
Water Quality Section -
Stormwater
FAX # [phone]
Phone # [phone]
Please send in two copies of the revised basin section detail on sheet 6, which shows the
retaining wall in section, completely around the basin. I understand that the wall itself is being
designed by others, so you can simply put a plain and simple wall on the detail and note that it is
being designed by others.
S:1WQSlSTORMWATIADDINF0120031020821,JAN03
NCDEh
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

Kimley-Horn
and Associates, Inc
Transmittal
Date: 11 /26/02
To: Ms. Linda Lewis
Job No. 011737018
P.O. Box 33068
Raleigh, North Carolina
27636-3068
TEL [phone]
FAX [phone]
DWQ #SW8 020821
NCDENR Wator Quality Section .LA,1`-j 1 A
127 Cardinal Drive Extension
Wilmington, NC 28405 NOV 2 ] 2002
Re: FCB - Swansboro, NC
PROJ # Stu 270 ZG 8 21
We are sending you
® Attached ❑ Under separate cover via the following items:
❑ Shop drawings ® Prints/Plans ❑Samples ❑Specifications ❑ Change orders
copies
Date
No.
Description
1
11/22/02
1
Co of Faxed Request from NCDENR
2 sets
10/02/02
2
Revised Construction Plans Sheets C3 and C4
1
11/25/02
1
Revised Infiltration Basin Supplement (Page 1)
revised Basin Bottom Dimension and Volume
These are transmitted as checked below.-
0 For your use ❑ Approved as submitted
® As requested ❑ Approved as noted
❑ For review and comment ❑ Returned for corrections
Remarks Ms. Lewis:
❑ Resubmit — copies for approval
❑ Submit _ copies for distribution
❑ Return corrected prints
The enclosed plans are being submitted to you in response to your faxed
request dated November 22, 2002.
Please contact us at 919 677-2000 with an uestions or comments.
Thank you for all of your assistance,
Copy To: Mr. Wayne Rayner, FCB Si
Brian J. Michot, P.E.

J
Kimley-Horn
and Associates, Inc Nov Z402
Transmittal ��-
Date: 11/12/02 Job No. 011737018
To: Mr. Rick Shiver; Ms. Linda Lewis
NCDENR Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: FCB - Swansboro, NC
We are sending you
® Attached ❑ Under separate cover via
❑ Shop drawings ® Prints/Plans ❑Samples
I El
?��v
z+
P.O. Box 33068
Raleigh, North Carolina
27636.3068
TEL [phone]
FAX [phone]
DWQ #SW8 020821
the following items:
❑Specifications ❑ Change orders
Copies
Date
No.
Description
1
11/12/02
81/2xl1Plan Showing Revised Wall Layout —Permit No. SW8-
020821
These are transmitted as checked below:
® For your use
❑ Approved as submitted
❑
Resubmit —copies for approval
® As requested
❑ Approved as noted
❑
Submit _ copies for distribution
❑ For review and comment
❑ Returned for corrections
❑
Return corrected prints
Renturks
The enclosed item are being submitted to you in response to FCB's request to
revise the retaining wall to connect both ends along the drive-thru side of the site
at the First Citizens Bank site along Hwy 24 in Swansboro, NC.
Please contact us at [phone] with anv questions or comments.
k.Vpy rU. Ivlr.yyayrle riayflur, rt,o 3

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STRUCTURE (SEE
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T Ilk FLOW SPREADER 18.0 TW
ELEv.=10.5 Bw
18.0 TW '
14.0 TW 10.5 8 W
15.0^TWA
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- --INV. II\I=688- — — — -
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13. 1w�_ --r 10.5Bw. 1�
10.5 ew — I C.14
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15" RCP ®
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SCALE: 1 "=20'
0
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p1m® FIRST CITIZENS BANK REVISED POND FIGURE
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P.- 1
FILE MODE
---------------
893 MEMORY TX
COMMUNICATION RESULT REPORT ( NOV.22.2002 11:44AM )
TTI NCDENR WIRO
OPTION ADDRESS (GROUP) RESULT -PAGE
B-9196772050 OK P. 1/1
REASON FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO ANSWER
Date: November 2
To: Peter Bishpl
Company: Kim]
FAX 4: 9194
D`VVQ Stormwater p
Project Name:
MESSAGE:
2002
P.E.
E-2) BUSY
E--4) NO FACSIMILE CONNECTION
Michael F. Easley. Governor
William G. Ross, Jr. Secretary
North Carolina Department of Environment and Natural F isources
FAX COVER SHEET
n and Associates
0
-eject Number: SW$ 020821
First Citizens Bank
Alan W. Klimek P.E., Director
Division of Water quality
Wilmington Regional office
No. of Pages: 1
From: Linda Lewis
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
Dear W. Bishop:
I
T received your fax re arding the new layouX of the retaining wall. Please send in revised plans and
calculations so that a permit modification may be issued,
Irk

r
W A rFgQ
� r
o �
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
FAX COVER SHEET
Date: November 229 2002
To: Peter Bishop. P.E.
Company: Kimley-Horn and Associates
FAX #: [phone]
DWQ Stormwater Project Number: SW8 020821
Project Name: First Citizens Bank
MESSAGE:
Dear Mr. Bishop:
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
No. of Pages: 1
From: Linda Lewis"
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
I received your fax regarding the new layout of the retaining wall. Please send in revised plans and
calculations so that a permit modification may be issued.
�LJ
S:\WQS\STORMWAT\ADDINFO\2002\020821.NOV
AM
NCDEI<'R
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

P. 1
COMMUNICATION RESULT REPORT ( NOV. 5.2002 2:12PM )
TTI NCDENR WIRO
FILE 110DE OPTION ADDRESS (GROUP) RESULT PAGE
525 MEMORY TX 8-9103263101 OK P. 1/1
REASON —FOP.—ERROR
--
E-1) HANG UP OR LINE FAIL
E—S) NO ANSWER
I
y I
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
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-1
f

Kimley-Horn
and Associates, Inc.
October 24, 2002
Mr. Rick Shiver
Water Quality Regional Supervisor
NCDE~NR
NC Division of Water Quality
127 Cardinal Drive
Wilmington, NC 28405
Subject: First Citizens Bank
Onslow County
Swansboro, NC
KHA Project No.: 011737018
NCDENR Project No.: SW8 020821
Dear Mr. Shiver:
RFC.
TOTED
Qt; l 2, 8 M02
BY:
Based on your conversation with Wayne Raynor, First Citizens Bank and an
email sent by Linda Lewis addressed to Harlan Britt on October 16, 2002 for the
subject project, we believe that we have addressed all of your concerns.
However if you have additional comments, please feel free to call me at (919)
677-2164.
Thank you for explaining your determination behind the required increased
design storm value. Based on your email, we have obtained additional field data
and re -designed the proposed infiltration basin.
Enclosed are two (2) sets of the revised plans addressing the requirements as per
the email. Also enclosed are copies of the revised infiltration pond application
form SWU-103 (page lof 3) and a revised infiltration pond calculation
spreadsheet.
Comments
■
P.O. Box 33066
RaVgh, North Carolina
27636.3068
1. 1 ant able to consider a retaining wall and/or 2:1 slope .(or combination of the
two) to provide 3" of volume. Please submit revised plans, application and
calculations for a 3" design volume.
The Site and Grading Plans (Sheets C3 & C4) have been revised to reflect a
combination of a retaining wall and 2:1 slopes for the infiltration basin.
Calculations for the proposed new infiltration basin design accounts for a design
storm of 3.0" (refer to enclosed infiltration pond calculation spreadsheet).
■
TEL [phone]
FAX [phone]

❑�� Kimley-Horn
and Associates, Inc.
The offsite drainage is still a concern. There isn't enough contour information
for Elm Street.
Additional survey data was obtained for Elm Street. Existing topographical data for
Elm Street was revised with this information on the Existing Conditions Plan and
the Grading Plan (Sheets C1 & C4).
3. Please either account for this potential runoff (Main and Elm Street) or provide
enough contour information for -Elm Street on the plans to show how this
drainage bypasses the proposed infiltration basin.
The total 3" volume required is 7,032 cubic feet (including the additional
potential offsite area from above).
A 4-foot valley gutter has been added to the Construction Plans (Sheets C3 & C4) to
convey runoff that may flow from Main Street and Elm Street. Runoff from Main
Street and Elm Street will thereby bypass stormwater inlets that capture stormwater
runoff for treatment by the infiltration basin.
Based on the drainage area (DA-1) previously submitted which does not include the
additional potential offsite area from Main and Elm Streets, the calculated required
infiltration basin volume is 5,841-cubic feet. The proposed infiltration basin volume
of 5,905-cubic feet is slightly greater than the required 5,841-cubic feet.
Thank you for your attention to these matters; please feel free to contact us
immediately with any questions or comments as time is of the essence.
Very truly yours,
KIMLEY-HORN AND ASSOCIATES, INC.
4
eter A. Bishop, P.E.
Vice President
bjm(H:1PN\0117370181Stormwater\NCDENR email Comment Response.doc)
Enclosures
cc: Thomas B. Morris, First Citizens Bank
Wayne Raynor, First Citizens Bank

Kimley-Horn
_ and Associates, Inc.
I►Nil1 "M Il ►1 01J
Background
RECEIVED
OCT 0 7 2002
PROJ # S;Ck) o -0 01
a
This report contains the approach and results of a stormwater analysis conducted for the proposed
redevelopment of a First Citizens Bank site in Swansboro, North Carolina. The project site is located
along US Hwy 24 in Swansboro, NC. The site is composed of 1225-acres and located within the White
Oak River basin in Onslow County.
The existing site prior to redevelopment consisted of a First Citizens Bank building, a vacant two-story
building, asphalt parking areas and drives. The on -site pre-existing impervious area for the site has been
calculated to be 28,400-sf (0.652-acre) (or 53.2% impervious).
Redevelopment
Redevelopment of the site consist of the demolition and removal of all existing impervious surfaces and
structures on site and the reconstruction of a First Citizens Bank building, drive-thru/ATM lanes and
asphalt parking areas. The proposed on -site impervious area is calculated to be 25,368-sf (0.582-acre)
(or 47.5% impervious).
REDEVELOPMENT SITE DATA
On -Site
Impervious Area
Percent Decrease
M).
Existing
Proposed
(SO
(sf)
28,400
25,368
10.7
The proposed redevelopment will reduce the on -site impervious area by approximately 3,030-sf. The
redevelopment site data table presented above summarizes the existing and proposed impervious areas
and the calculated percent decrease in impervious areas for this site.

❑�� Kimley-Horn
and Associates, Inc.
' Water Ouality
Stormwater runoff from the proposed development will be captured and conveyed by an on -site
' stormwater system. An impervious area equal to approximately 95.7%n of the proposed on -site
impervious surface area has been designed to be captured and treated by the proposed infiltration basin.
' The infiltration basin is designed with a bottom elevation of t0.5-ft, 2-ft above the seasonal high water
table, a top elevation of 12.15-ft, and side slopes of 2:1 ratio. The infiltration basin has been sized to
contain a 2" design storm, which exceeds the required 1.5" design storm. Existing earth material will be
' excavated to an elevation of 8.5-ft to remove any soil containing clay. This excavated material will be
replaced with sandy soils to an elevation of 10.5-ft.
REDEVELOPMENT STORMWATER TREATMENT DATA *
Im ervious Area
On -Site On- & Off -Site Percent Treated
Area Treated M
(sf) (sf)
25,368 24,272 95.7
The total proposed impervious surface areas to be developed and treated are shown above in the
redevelopment stormwater treatment data table.
* See attached infiltration basin calculations and the soils report prepared by Eastern Soils Limited dated
August 14, 2002.
Conclusion
The proposed redevelopment will reduce the impervious surface area for the existing site by 10.7%n. The
' proposed infiltration pond will treat an impervious area equal to 95.7% of the proposed impervious area
for the site. Based on this data, the stormwater runoff for the proposed First Citizens Bank site has been
captured and treated to the maximum extent practicable by the proposed infiltration pond.
1
L'
H:Ipn101 17370181StormwaterlRevised-storm report October Swans boro FCB.doc
1�

ROM EASTERN SOILS LTD.
c,
1 .
August 14, 2002
FAX NO. : 9106869858' Aug. 19 2002 06:24RM P2
. 6cs1em (Soils .,,0zrrzi1ed
Post Office Box 10161
Wilmington, North Carolina 28404
TallFax: (910) 68&98M
Consulting Er ironmentai Scientists
Ms. Brian N ichot, PE
Kimley-Horn and Associates, Inc.
P.O. Box 33068
Raleigh, North Carolina 27636
RECEIVED
OCT 0 7 2002
nwQ
PROJ #
SUBJECT: Estimation of Seasonal High Water Table and Soil Permeability
First Citizens Bank (.Phase 1)
Maim Street and Elm.Street
' Swansboro, North Carolina
K-H Project No. 01173701 S
ESL Project No, 02-116
Dear Mr. Michot:
Thank you for the opportunity to assist you with this project. The results of our study are
presented the following report.
' Introduction
A First Citizens Bank is under construction near the intersection of Main Street and EIm.
' Street in Swanaboro, North Carolina. Kirnley-Horn and Associates requested that we
estimate the depth to the seasonal high water table (SHWT) and estimate the hydraulic
conductivity (K, in two locations ors the site. The information is needed for stormwater
' management facility design.
Two hand auger borings were made to observe soil conditions for the purpose of
estimating the depth to the SHWT and to estimate the soil permeability. The borings were
made to a depth of 108 inches at both locations. The estimate of the hydraulic
conductivity was made based on the observed soil textwe and other soil eondirions. The
approximate boring locations are depicted on the attached site maps, which were supplied
by Kimley-Horn.

FROM = EASTEFN SOILS LTD. FAX NO. 9106869%8 Aug. 19 2002 06:24AM P3
' First Citv.ens Bank
Swansboro. NC
Page 2
Observations
Our observations at each of the two boring locations are described in separate sections
presented below.
Burin
Several borings were attempted near the center of this location, but met refusal at less than
24 inches depth because of gravel and concrete fragrents. A final hand auger boring was
made to a depth of 108 inches in the approximate location depicted on the attached figure.
The soil at this location resembled the Marvyn series. Based on the site maps provided by
Kitnley-Horn, the elevation of this boring location is estimated to be about 13 feet.
' The soil from 0 to 18 inches appeared to, be fill or disturbed natural soil containing gravel
and concrete fragments. Its texture was fine sandy loam, From 18 to 36 inches, the soil
was yellowish brown fine sandy loam. From 36 to 52 inches, the soil was massive, strong
' brown clay and sandy clay. Gray mottles were observed at a depth of about 42 inches.
From 52 to 96 inches, the soil was Eight yellowish brown sand with lumps of gray sandy
' loam. From 96 to 108 inches, the soil was white sand. The soil was water saturated
beginning at a depth of 52 inches, at the interface of the clay arid sand soil layers. The
depth to the water table was measured at a depth of 52 inches below the ground surface,
approximately one hour after the boring was completed.
The hydraulic conductivity of the fine sandy loam soil (0 to 36 inches) is estimated to be 2
to 4 Whr. The permeability of the massive clay layers (36 to 52 inches) is estimated to be
much less than the 0.52 in/hr required for infiltration basins. The permeability of the sand
layers beneath the clay (52 to 108 inches) is estimated to be about 6 in/hr.
Boring Vocation 2
A hand auger boring was made to a depth of 108 inches at this location. The soil at this
' location resembled the Marvyn series. Based on the site maps provided by Kimley-Horn,
the elevation of this boring location is estimated to be about 15 feet.
The soil from 0 to 18 inches appeared to be disturbed natural soil_ Its texture was fine
sandy loam. From 18 to 48 inches, the soil was yellowish brown fine sandy loam_ From
48 to 71 inches, the soil was massive, strong brown clay and sandy clay. Gray mottles
' were observed at a depth of about 52 inches. Front 71 to 96 inches, the soil was light
yellowish brown sand with lurnps of gray sandy loam. From 96 to 108 inches, the soil was
white sand. The soil was water saturated beginning at a depth of 71 inches, at the
1 interface of the clay and sand soil layers_ The depth to the water table was measured at a
depth of 71 inches below the ground surface.. approximately one hour after the boring was
completed.
' The hydraulic conductivity of the fine sandy loam soil (0 to 48 inches) is estimated to be 2
to 4 in/hr. The permeability of the massive clay layers (49 to 71 inches) is estimated to be
' EASTERN SOILS LMTED P.O. Box 10161 Wilming on, NC 28404

tOM EASTERN SOILS LTD. FAX NO. : 9106869e68 Aug. 19 2202 06:25AM P4
' First Citizens Bank
Sw'ansboro, INC
Page 3
much less than the 0.52 in/hr required for infiltration basins. The permeability of the sand
p ty
layers (71 to 108 inches) is estimated to be about 6 in/hr_
' Conclusions
The depth to the water table corresponds with the bottom of the clay layers encountered
' in the soils at both boring locations. Because the project site is located in a midslope
position above the White Oak River, it is likely that the permanent water table is confined
beneath the clay layers, draining toward the river through the sand layers beneath the clay.
It is also likely that water drains along the top of the clay layers during periods of rainfall.
The slope of the site makes it unlikely that the water perches on the clay layers for very
long, therefore the permanent water table is likely that beneath the clay layers. The
' difference in the depth of the water table beneath -the soil surface at the two locations is
likely due to the elevations of the boring positions. We estimate the elevation of the water
' table, therefore, to be about 9 feet.
If permission can be. obtained from the NC-DWQ, it may be possible to construct an
infiltration basin in the area of bong location 1 by excavating the soil to the bottom
t elevation of the clay layers, placing a suitable sand fill to a depth of about 2 feet above the
water table, and obtaining any additional volume by building a soil berm around the basin
(if necessary). We understand that the excavation of unsuitable soil material and replacing
it with fill is considered by the NC-DWQ on a case -by -case basis.
' Thank you for the opportunity to assist you with this project_ The Division of Water
Quality Regional Soil Scientist will need to approve of our estimates and conclusions for
this site_ We would be happy to meet him at the site to discuss the project when he is
ready to visit it.
Sincerely
Cam- r
W. R. (Bill) Dunlop, Jr., LSS
NC Licensed Soil Scientist # 1095
Attachments: Site Maps (Kimley-Horn)
' EASTERN SOILS LIMITED P,O, Box 10161 Wilmington, NC 28404

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Michael F. Easley, Governor
William G. Ross, Jr:, -Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director _
Division of Water Quality
Wilmington Regional Office
September 26, 2002 --
Mr. Thomas B. Morris, Senior Vice President
First Citizen's Bank
PO Box 27131
Raleigh, NC 27611
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 020821
First Citizen's Bank Swansboro
Carteret County
Dear Mr. Morris:
The Wilmington Regional Office received a Stormwater Management Permit Application
for First Citizen's Bank Swansboro on August 22, 2002. Per your engineer's request for an
expedited review, a preliminary review of that information has determined that the application is
not complete. The following information is needed to continue the stormwater review:
Please either delineate all wetlands on site, disturbed or undisturbed, or note on
the plans that none exist.
2. This project is proposing an infiltration basin, which is not considered an
alternative design. However, I am able to give consideration regarding the
untreated runoff. I consider the fact that the site used to contain over 28,000 ft2 of
impervious area that received no treatment, and which now contains under 3,000
ftz of untreated impervious area a fair trade-off under the redevelopment
guidelines.
4. Please either find a way to provide the required 50' vegetated filter, or provide
additional storage in the infiltration basin for the runoff from a 4.5" design storm
(a little over 8,I00 cubic feet). Because there are no specific rules to follow when
a required element is not provided, we must use our best judgement on a case -by -
case basis. I cannot allow this element of the system to be deleted without getting
something else in return. Due to the proximity of this site to SA waters, a 4.5"
design storm is justified. The use of retaining walls in the area of the infiltration
basin will enlarge the basin and may free up enough space so that additional
storage for the runoff is created. Unlike wet detention ponds, infiltration basins
are storage areas and are not required to have vegetated side slopes if something
else will do a better job.
5. The basin detail shows a flow spreader, but it does not show what it is or how it
will work. Please explain and provide additional details to ensure that the entire
basin gets used for infiltration, instead of just the area immediately around the
bypass structure.
6. It appears that offsite drainage from both Elm Street and Main Street may be
entering the site at the driveways, however, no offsite area has been accounted for
on the application. No existing catch basins or piping is shown in either Elm
Street or Main Street to collect the runoff. Please show how this runoff will be ��
blocked from entering the bank site. Ar
NCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

Mr. Morris
September 26, 2002
Stormwater Project No. SW8 020821
---------------------------------------------------
7. Rather than show the confusing phased grading in the area of the drive-thru lane
and the retaining wall, please just show the final grading when all is done. The
contours in this area overlap and make no sense.
8. Please provide dimensions for the building, concrete areas, parking and drives.
9. Please label the drainage areas on the highlighted plan. Both areas are delineated
in blue, making it appear that everything inside the blue line is part of the drainage
area to the basin. Please either use a different color for DA-2 (the uncollected
area) or number the areas to correspond to the application.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received by this Office prior to October 26, 2002,
or the application will be returned as incomplete. The return of a project will necessitate
resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for
a time extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information. The
Division is allowed 90 days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. All original
documents must be returned or new originals must be provided. Copies are not acceptable. If
you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:IWQSISTORMWATIADDINF0120021020821.SEP
cc: Linda Lewis
Brian Michot, P.E.

Re: First Citizens Bank, Swansboro
Subject: Re: First Citizens Bank, Swansboro
Date: Fri, l l Oct 2002 08:27:33 -0400
From: Linda Lewis <[e-mail]>
Organization: NC DENR
To: Harlan. [e-mail]
BCC: Vincent Lewis <[e-mail]>, Rick Shiver <[e-mail]>
Harlan:
I have decided that more storage is needed than just the 2" storm for SA waters without a vegetated
Filter. Unless there are other utilities besides the sanitary sewer line and the transformer pad, it would
appear that a retaining wall could be built which would provide significantly more storage. If the only
thing in the way of the retaining wall and additional storage is a minor relocation of the utilities, I think
that it would be considered "maximum extent practicable" and a fair tradeoff to gain additional storage.
Regarding the county library site on Military Cutoff, Vincent and I both have the mid -morning of Friday,
October 18 open, around 10:00 am. Please arrange for your soils people and digging equipment to be on
site at this time. If next Friday is not convenient, please call or email me to discuss another date and
time.
Linda
[e-mail] wrote:
Linda, Hope that you had a good vacation. I need to know if you can give me the status of the question that you
were to run through Bradley related to the 2 inch design storm that can be captured at the bank site in lieu of the
50 vegetative filter strip. Our folks tell me that we can not daylight the outlet to get to a vegetative strip however
we can capture and infiltrate runoff from a two inch storm. As you are aware time is of the essence for us as
most people tell you. Anyway, can you let me know who has the ball?
Thanks for your help.
Harlan K. Britt, P.E.
Kimley-Horn and Associates, Inc
P.O. Box 33068
Raleigh, North Carolina 27636-3068
[phone]
[e-mail]
1 of 1 10/15/2002 3:30 PM

P. 1
COMMUNICATION RESULT REPORT ( SEP.27.2002 2.41PM )
TTI NCDENR WIRO
RESULT - PAGE-----
ADDRESS (GROUP)----- -------------- ------ P _414
OPTION ----------------------
OK
ILE CIQDE ----- ------------ DEM DIRECTORS
)7F,-~MEMORy TX
___ --- -_—__---__—_— E--2) BUSY
---PEA501,1 FOP, ERROR E�47 1°ICJ FRCS—ItLl CONNECTION —
E— ) HANG ANSWER FINE FOIL
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
4
Michael F. Easley, overnor William G. Ross Jr., Secretary
,
FAX COVER SHEET
Date: t'b ra ":�2. o 2_ No. Of Pages: �?
To: From:
CO: t CO:
FAX #: FAX#: [phone]
REMARKS:
t
127 Cardinal PTivt Extension, Wilmington, N.C. 28405-3flig Tdtphone [phone] Fax [phone]
` An Equal Qpprtunllx Atiirmadve Action Employer
-7 --

State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor William G. Ross Jr., Secretary
FAX COVER SHEET
Date: r.,
To: ,,i.►__A-n y—L—t C_ 1�-
CO: Ca c_.� a Q
FAX #: 7� t
No. Of Pages: _ 4
From:CO;
FAX#: [phone]
REMARKS: �{ ti * A, (=-&- t:--�
■ iftew-Uwami
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 Telephone [phone] Fax [phone]
An Equal opportunity Affirmative Action Employer

0�
Michael F. Easley, Governor
William G. Ross, Jr.,. Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
- - - - Sepfernber 26- 2002--- - --
Mr. Thomas B. Morris, Senior Vice President
First Citizen's Bank
PO Boa 27131
Raleigh, NC 27611
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 020821
First Citizen's Bank Swansboro
Carteret County
Dear Mr. Morris:
The Wilmington Regional Office received a Stormwater Management Permit Application
for First Citizen's Bank Swansboro on August 22, 2002. Per your engineer's request for an
expedited review, a preliminary review of that information has determined that the application is
not complete. The following information is needed to continue the stormwater review:
M i ncr 1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on
the plans that none exist.
2. This project is proposing an infiltration basin, which is not considered an
!2 alternative design. However, I am able to give consideration regarding the
untreated runoff. I consider the fact that the site used to contain over 28,000 ft2 of
impervious area that received no treatment, and which now contains under 3,000
ft2 of untreated impervious area a fair trade-off under the redevelopment
guidelines.
4.
�2 Cr
Please either find a way to provide the required 50' vegetated filter, or provide
additional storage in the infiltration basin for the runoff from a 4.5" design storm
(a little over 8,100 cubic feet). Because there are no specific rules to follow when
a required element is not provided, we must use our best judgement on a case -by -
case basis. I cannot allow this element of the system to be deleted without getting
something else in return. Due to the proximity of this site to SA waters, a 4.5"
design storm is justified. The use of retaining walls in the area of the infiltration
basin will enlarge the basin and may free up enough space so that additional
storage for the runoff is created. Unlike wet detention ponds, infiltration basins
are storage areas and are not required to have vegetated side slopes if something
else will do a better job.
5.
M 10
The basin detail shovers a flow spreader, but it does not show what it is or how it
will work. Please explain and provide additional details to ensure that the entire
basin gets used for infiltration, instead of just the area immediately around the
bypass structure.
6. It appears that offsite drainage from both Elm Street and Main Street may be
entering the site at the driveways, however, no offsite area has been accounted for
on the application. No existing catch basins or piping is shown in either Elm
Street or Main Street to collect the runoff. Please show how this runoff will be �v,
blocked from entering the bank site. A A
INCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

Mr. 1�10[T]S
September 26, 2002 .
Storniwater Project No. SW8 020821
~7. Rather than show the confusing phased grading in the area of the drive-thru lane
{� and the retaining wall, please just show the final grading when. all is done. The
contours in this area overlap and make no sense.
8. Please provide dimensions for the building, concrete areas, parking and drives.
9. Please label the p
drainage areas on the highlighted lan. Both areas are delineated
in blue, making it appear that everything inside the blue line is part of the drainage
I il� area.to the basin. Please either use a different color for DA-2 (the uncollected
area) or number the areas to correspond to the application.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received by this Office prior to October 26, 2002,
or the application will be returned as incomplete. The return of a project will necessitate
resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for
a time extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information. The
Division is allowed 90 days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. All original
documents must be returned or new originals must be provided. Copies are not acceptable. If
you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ga(� "d"
Linda Lewis
Environmental Engineer
RSS/arl: S:IWQSISTORMWATIADDIINTF0120021020821.SEP
cc: Linda Lewis
Brian Michot, P.E.

P. 1
COMMUNICATION RESULT REPORT ( OCT.16.2002 12:55PM ) * * *
t; TTI NCDENR WIRO
FILE MODE OPTION ADDRESS (GROUP) ---------RESULT---------PAGE
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1099--HEMOR'Y' TX 8919672417E OK P. 3/3
i17n.
-3 -w<
--------------------------------------------------
REqE;C1N FOR ERROR
E-1) HANG UP OR LINE FAIL E-2) BUSY
E-3) NO ANSWER E-4) NO FACSIMILE CONNECTION
State of North Carolina
Department of Environment and Natural resources
Wilmington Regional Office
w
Michael F, Easley, G. vernor William G. Ross Jr,, Secretary
I
FAX COVER SHEET
i
Date: �IG-
To: 142—rl
CO: �. f
FAX #:
,tlq-
REVIARRS:
127 Cardl;tial
0
,5Guj? C7 ZC� 8 2
2 No. Or Pages: -3
f3r4From: LiA62- Lemon
rn CO: _.
I---- FAX#: [phone]
3-417&
le s refe., k) of /-OJ.
t
Extension, W11m1nZan, .N,C. 28405-3845 Toldphane [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer

_ State of North Carolina
` Department of Environment and Natural Resources
Wilmington Regional Office
Michael F. Easley, Governor William G. Ross Jr., Secretary
. FAX COVER SHEET
5wL� 0zv821
Date: 10- j(D -02
To: H2rlan art
FAX #:
c(19-G-76 -41 A.
REMARKS: Fleos2 re-Fer
No. Of Pages: .3
From: Linda Lewis
CO:
FAX#: [phone]
CU h')q ern2i I or !rJ-�3y .
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer

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1st Citizens,
Subject: Ist Citizens
Date: Wed, 16 Oct 2002 10:18:14 -0400
From: Linda Lewis <Linda.Lewis@ncmai].net>
Organization: NC DENR
To: Harlan Britt <[e-mail]>
CC: Rick Shiver <[e-mail]>
Harlan:
Rick asked me to explain to you our policy regarding the BPJ used to
determine the design volume for this project. As you may be aware, the
rules require a bypass and vegetated filter for the excess volume from
all infiltration systems. The standard design volume is 1" for non -SA
waters and 1.5" for SA waters. A few years back we started running
across projects that, for various reasons, could not provide the
required bypass and 50, vegetated filter. Jeanette, Bradley, and I
agreed that in lieu of the bypass and filter, we would require
additional storage. The exact amount of storage is based on the distance
to the receiving waters, the infiltration capacity of the soils, and the
depth to the seasonal high water table. The design volume for a project
far.away from SA'waters (1/2 mile), with good infiltration and a deep
SHWT, would be required to do twice the design storm. Projects adjacent
SA waters, with marginal soils (<I" per hour) and shallow SHWT (right at
21) would be required to provide 3 times the minimum volume. Projects
in-between are subject to a design volume somewhere in-between.
Based on what I see on the plans, a retaining wall placed around the
entire interior perimeter of the curbing (staying 5' away from the
transformer pad) would provide storage for close to a 3.5" volume.
Certain areas would have a 6-7 foot retaining wall, therefore, per the
"maximum extent practicable" requirement under the redevelopment rules,
I am able to consider a retaining wall and/or 2:1 slope (or combination
of the two) to provide 3" of volume. Stabilization of a 2:1 slope is a
concern, so it will need to be either rip -rap or sod.
In a separate matter, I reviewed the drainage area plan received on
October 7, 2002. The offsite drainage area is still a concern. What is
happening to the runoff that collects along the northeastern curbing on
Main Street? There is no catch basin to pick up this runoff on the
plans, so I have to assume that, unless Elm Street does not have a
normal crown section, it turns the corner and heads northeast along the
curb down Elm Street to be eventually collected into the infiltration
basin. There isn't enough existing contour information for Elm Street to
definitively conclude what is happening with the runoff. I calculate
about 6,900 sq. ft. of offsite built -upon area, as opposed to the 2,144
now reported on the application. Please either account for this
additional runoff or provide enough contour information for Elm Street
on the plans to show how this drainage bypasses the proposed
infiltration basin.
The current application shows that the basin will hold 3,888 cubic feet
of volume up to elevation 12.17. The total 3" volume required is 7,032
cubic feet (including the additional potential offsite area from above).
The contours in the basin are already shown at a 2:1 interval, so I
assume that a retaining wall of some sort will be needed in places to
gain the additional required volume. Please submit revised plans,
application and calculations for a 3" design volume.
I am faxing you two sketches showing the offsite drainage area and
possible retaining wall locations.
Linda
l of 1 I0/16/2002 11:14 AM

P. I
FILE MODE
—
C192 MEMORY —TX
COIT1MUi'dICATION RESULT REPORT ( OCT.16.2002 10:17AM )
TTI NCDENR WIRO
RESULT WAGE
OPTION ADDRESS (GROUP) —--------------
-------OK
8-9196772050
—F:EASON FOR ERFOR E--2) BUSY
E--1) HANG UP OR LINE FAIL E_�) I�p FACSIMILE CONNECTION
E-3) PIO ANSWER --
State of TOrt11 Carolina
j Department of En'virotlment and Natural Resources
Wilmington Regional Office
Michael F. Easley, GoVemOr William G, Ross Jr., Secretary
FAX COVER SHEET
Date: 10_ - No. Of Pages -
To: _H,--,r_1�;;,V'j I f5k A From: _ Lit)Ql a L Ql a_5
CO: Kf rn lei-1-1~arn CO:
FAX#: �I_i � '� �o�o FAX#: [phone]
e 1
REMARKS:i���se r f� � rr, em � � of
i
127 Cardli►IRI Drive Extension, Wilminpon, N.C. $8405-3845 Tel apheno [phone] Fax [phone]
An Equal Opport tHWAffirmallve Action Employer

_ _ ,d V Z
BY:
Kimley-Horn
and Associates, Inc
Transmittal
Date: 10/03/02
To: Ms. Linda Lewis
Job No. 011737018
NCDENR Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: FCB - Swansboro, NC
P.O. Box 33068
Raleigh, North Carolina
27636-3068
TEL [phone]
FAX [phone]
DWO #SW8 020821
We are sending you
® Attached ❑ Under separate cover via the following items:
❑ Shop drawings ® Prints/Plans ❑Samples ❑Specifications ❑ Change orders
Copies
Date
No.
Description
1
10/02/02
Comments in response to Request for Additional Information
2
10/01/02
2
Revised Stormwater Management Permit Application
a es2of4&3of4
1
10/01/02
2
Revised Infiltration Basin Supplement (pages 1 of 3 & 2 of 3
2 sets
10/02/02
6
Revised Construction Plans
1 set
10/02/02
--
Stormwater Analysis Including:
Narrative, Calculations and Soils Report
1
10/01/02
1
[Drainage Area Plan
These are transmitted as checked below:
® For your use
❑
Approved as submitted
❑
Resubmit _ copies for approval
❑ As requested
❑
Approved as noted
❑
Submit —copies for distribution
® For review and comment
❑
Returned for corrections
❑
Return corrected prints
Remarks Ms. Lewis:
The enclosed items are being submitted to you in response to your request for
additional information concerning the stormwater review for the redevelopment of
the First Citizens Bank site along Hwy 24 in Swansboro, NC.
Please contact us at [phone] with any questions or comments.
Thank vou,
Copy To: Mr. Thomas B. Morris, FCB Signed
Brian J. Michot, P.E.

❑�❑ Kimley-Horn
and Associates, Inc.
■
P.C. Box 33068
Raleigh, Narlh Carolina
276a6.3068
October 3, 2002
Ms Linda Lewis.
Environmental Engineer
NCDENR
NC Division of Water Quality
127 Cardinal Drive
Wilmington, NC 28405
Subject: First Citizens Bank
Onslow County
Swansboro, NC
KHA Project No.: 011737018
NCDENR Project No.: SW8 020821
Dear Ms. Lewis:
RECEIVED
OCT 0 7 2002
DWQ
pxoJ #
We are writing in response to your Request of Additional Information for the
subject project dated September 26, 2002, which we received on September 30,
2002. We believe that we have addressed all of your concerns, however if you
have additional comments, please feel free to call Brian Michot at (919) 678-
4132 or me at [phone],
First, we believe it important to summarize the situation regarding the site. The
pre-existing impervious area totaled 28, 400 square feet and the post construction
impervious area totals 25, 369 square feet. This represents approximately a 11
percent reduction in impervious area. Therefore, we believe that this project is a
redevelopment project as defined in NCAC 2B. 1002(14), because we have
decreased the impervious area. Additionally, we are providing greater
stormwater control than previously existed as there was no stormwater treatment
for the runoff before our client's project.
■
TEL [phone]
FAX [phone]

Kimley-Horn
_ and Associates, Inc.
Under NCAC 213.1003 (3) (13), development may also be permitted on a case -by
case basis if the project is redevelopment which meets the requirements of the
rule to the maximum extent practicable. The only requirement that we cannot
meet with the project as designed is the 50-foot vegetative filter strip before the
runoff enters surface waters. To compensate for this inability, we can capture and
infiltrate runoff from a two-inch rainfall event. We believe this increased capture
rate should compensate for the loss of vegetative filter and in light of this being
redevelopment, the plan meets the requirements of the rule to the maximum
extent practicable.
Enclosed are two (2) sets of the revised plans addressing the comments as
described below. Also enclosed are copies of the revised stormwater applications
and a Drainage Area plan with proposed drainage areas "DA-l" and "DA-22"
delineated.
Comments
1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on
the plans that none exist.
A note has been added to the plans (Sheet C4) that no wetland exists on the site.
2. This project is proposing an infiltration basin, which is not considered an
alternative design. However, I am able to give consideration regarding the
untreated runoff. I consider the fact that the site used to contain over 28'000ft2
of impervious area that received no treatment, and which now contains under
3,000 ft2 of untreated imperious area a fair trade-off under the redevelopment
guidelines.
So noted.
3. No Comment.
4. Please either find a way to provide the required 50' vegetated filter, or provide
additional storage in the infiltration basin for the runoff from a 4. 5" design
storm (a little over 8,100 cubic feet). Because there are no specific rules to
follow when a required element is not provided, we must use our best
judgement on a case -by -case basis. I cannot allow this element of the system to
be deleted without getting something else in return. Due to the proximity of
this site to SA waters, a 4.5" design storm is justified. The use of retaining
walls in the area of the infiltration basin will enlarge the basin and may free up
enough space so that additional storage for the runoff is crated. Unlike wet
detention ponds, infiltration basins are storage areas and are not required to
have vegetated side slopes if something else will do a better job.

Kimley-Horn
and Associates, Inc.
Based on the site design restrictions, the proposed First Citizens Bank site
stormwater runoff has been captured and treated to the maximum extent practicable
by the proposed infiltration basin and cannot incorporate a 50' vegetated filter.
However, the proposed infiltration basin has been redesigned to capture a 2" design
storm. The infiltration basin cannot be designed for the 4.5" design storm even with
an expensive retaining wall constructed the entire perimeter of the basin.
5. The basin detail shows a now spreader, but it does not show what it is or how it
will work. Please explain and provide additional details to ensure that the
entire basin gets used for infiltration, instead of just the area immediately
around the bypass structure.
The flow spreader will be constructed of compacted clay in the vicinity of the
emergency bypass control box to aid runoff entering the basin to be evenly
dispersed throughout the basin.
A plan view of the proposed flow spreader location has been added to Sheet C4 and
the detail has been revised on Sheet C6.
6. It appears that offsite drainage from both Elm Street and Main Street may be
entering the site at the driveways, however, on offsite area has been accounted
for on the application. No existing catch basins or piping is shown in either
Elm Street or Main Street to collect the runoff. Please show how this runoff
will be blocked from entering the bank site.
Due to the existing crown roadway sections of Elm and Main Street, there is some
off -site water entering the site drainage system. We have accounted for this
additional drainage in the application, in the calculations and these areas are shown'
on the Drainage Area Plan.
7. Rather than show the confusing phased grading in the area of the drive-thru
lane and retaining wall, please just show the final grading when all is done.
The contours in this area overlap and make no sense.
The enclosed plans have been revised to show the final grading without any
overlapping grades due to Phase I and Phase 2 construction.
8. Please provide dimensions for the building, concrete areas, parking and drives.
Dimensions for the requested areas have been added to Sheet C3.
4. Please label the drainage areas on the highlighted plan. Both areas are
delineated in blue, making is appear that everything inside the blue line is part

C � � KimleyHorn
and Associates, Inc.
of the drainage area to the basin. Please either us a different color for DA-2
(the uncollected area) or number the areas to correspond to the application.
Drainage areas for DA-1 and DA-2 have been delineated in different colors and
labeled on the Drainage Area Plan.
Thank you for your attention to these matters; please feel free to contact us
immediately with any questions or comments as time is of the essence.
Very truly yours,
KIMLEY-HORN AND ASSOCIATES, INC.
�l
Harlan K. Britt, P.E.
Associate
hjm (HAPN10I l7370181stormwater\NCDENR Plan Review Comment Responses REV.doc)
Enclosures
cc: Thomas B. Morris, First Citizens Bank
Dempsy Benton, DENR (Raleigh)
Alan Klimek, DENR (Raleigh)
Rick Shiver, DENR (Wilmington)

WATF9Q
�O G
� r
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regionai Office
3uly 26, 2002
CERTIFIED MAIL #f7002 0860 0003 9550 8410
RETURN RECEIPT REQUESTED
Mr. Thomas B. Morris
First Citizens Banlcand.Trust Co.
PO Box 27131
Subject: _----_REQUEST FOR STORMWATER
MANAGEMENT PERMIT APPLICATION
First Citizens Bank
- -.Y - Storniwater Project No. SW8020718
Onslow County
Dear Mr. Thomas:
On July 22, 2002, the Wilmington Regional Office received a copy of a Notice of
Violations of the Sedimentation Pollution Control Act for First Citizens Bank. The North
Carolina Administrative Code requires any project that must receive either Sedimentation and
Erosion Control Plan approval and/or a CAMA Major permit to apply for and receive a
Stormwater Management Permit by the Division of Water Quality. Any construction on the
subject site, prior to receipt of the required permit, will constitute a violation of 15A NCAC
2H.1000 and may result in appropriate enforcement action by this Office.
Either a Stormwater Permit Application Package including 2 sets of plans, completed
application form, fee, and supporting documentation, or a written response regarding the status of
this project and the expected submittal date must be received in this Office no later than August
26, 2002. Failure to respond to this request may result in the initiation of enforcement action, and
construction may experience a subsequent delay.
The NPDES 010000 Federal Stormwater Permit that accompanies the Erosion Control
Plan approval letter must NOT be considered the Coastal Stormwater Management Permit,
which will be signed by the Water Quality Supervisor. Please reference the Project Number
above on all correspondence. If you have any questions, please call me at (910)-395-3900.
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:1WQSISTORMWATISTORMSUB102071 S.3ul
cc: Mitchell Parker, Onslow County Building Inspections
,Tim Gre'-son
Linda- :b-N—ViS)
Central Files
' *A
4NCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

U.S. Postal Service
CERTIFIED MAIL RECEIPT
(Domestic Mail Only; No insurance Coverage Provided)
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Michadi r, casley, governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
September 17, 2002
SECOND REQUEST
U.S. Postal service
Certified Mall Receipts Dept.
Attention: Jene Yarborough
Fax#: 910.343, 6945
SUBJECT, Certified Mall# 7002 0980 0003 9S60 $410
Mr. Thomas S. Morris
First Citizens Bank
Gregory J. Thorpe, Ph,D., AdIng Director
Division of water Quality
Wilmington Regional Office
Irn looking for a green certified card for the attached lottmr—It is Imperative that t find something on this letter. Can you
please help mwith this? See attached for date and nerne.
Thanking you in advance for your time and consideration.......
Sincerely.
B e , Rivmnbark
Administrative Assistant
BAR/be
2 Shoots faxed
AM
AIM
N.C. DlvWan ofVVaterQuallty 127 Caralnal Drive Extension WlWmington, N.C, Z8403 (910) 39Pre900 Fax (010) 35"W4 CyatomeY Service
$00-623-7748

threct Query - Intranet - "Quick" Search
Page I of I
i Track/Confirm - Intranet Item Inquiry - Domestic
Event Date Time Location
DELIVERED 07/3012002 08:38 RALEIGH NC 27611
Recipient X JOH. N'
Re—
Enter Request Type and Item Number:
❑uick Search 6 Extensive Search r.
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Inquire on rflUltijjEj_items.
Go to the Product Tracking System -Home Pane.
httpi//pts.usps.gov/netdata-cgl/db2www/cbd-242.d2w/OUTPUT 9/17/02

Direct Query -.Intranet
Page 1 of I
Track/Confirm - Intranet Item Inquiry
Item !Number: 7002 0860 0003 9550 8410
This item was delivered on 07130/2002 at 08:38.
i
Signature;
7170
Address:
L--�
Enter Request Type and Item Number:
Quick Search !: Extensive Search (7-
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Go to the Product Tracking System Home_ Rage.
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9/1'7/02

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�S
Kimley-Hor E C E IV E D P.O. Box 33068
Raleigh, North Carolina
►
and Associates, Inc 27fi36.3068
AUG 2 2 2002
TEL [phone]
Transmittal
DWQ FAX [phone]
P #
Date: 08/21//21/ 02 Job No, 011737018
To: Ms. Linda Lewis
NCDENR Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: FCB - Swansboro, NC
We are sending you
® Attached ❑ Under separate cover via the following items:
❑ Shop drawings ® Prints/Plans ❑Samples ❑Specifications ❑ Change orders
Copies
Date
No.
Description
1
08/21/02
4
Letter — Site / events causing violation.
2
08/21/02
4
Stormwater Management Permit Application (original and co
1
08/21/02
3
Infiltration Basin Supplement
1
08/21/02
--
$420.00 Check for ApplicationProcessing Fee
2 sets
04/04/01
6
Revised Construction Plans Phase II
1 set
08/21/02
--
Stormwater Analysis Including:
Narrative, Calculations and Soils Re ort
1
08/20/02
1
1 Drainage Area Plan
These are transmitted as checked below. -
El For your use
❑ Approved as submitted
❑ Resubmit
_ copies for approval
❑ As requested
❑ Approved as noted
❑ Submit _
copies for distribution
® For review and comment
❑ Returned for corrections
❑ Return
corrected prints
Remarks Ms. Lewis:
Please accept the enclosed items for your stormwater review for the proposed
redevelopment of the First Citizens Bank site along Hwy 24 in Swansboro, NC.
Please contact us at 919 677-2000 with any questions or comments.
Thank vou,
Copy To: Mr. Thomas B. Morris, FCB Signed
Brian J. Michot, P.E.

Kimley-Horn
and Associates, Inc.
August 21, 2002
Ms. Linda Lewis
NC Division of Water Quality
127 Cardinal Drive
Wilmington, North Carolina 28405-3845
Re: Stormwater Permit
First Citizens Bank
Swansboro, North Carolina
Dear Ms Lewis:
RECEIVED
AUG 2 2 2002
DWQ
PROJ #
Enclosed herewith is the application for a stormwater permit for the subject
facility. As you are aware, the one -acre land disturbed area threshold has
triggered the need to obtain a stormwater permit.
To assist you in helping to resolve the permit issue, the following information
may be helpful to understand the situation.
The bank site was previously the location of three different land parcels. On one
parcel located in the north east quadrant, a single family home previously existed.
First Citizens Bank's building occupied the southern corner and a two-story
office building was located on the western end of this triangular city block. Each
parcel had rooftops, driveway and other impervious surfaces. This particular
block is unique in that the surface experiences approximately 17 feet of elevation
difference over a distance of approximately 300 feet. I'm sure that you have
noticed this elevation change in your travels through Swansboro.
Our client decided to construct a new bank in Swansboro and after significant
discussions with the Town, they decided to undertake construction of a new
branch office at the same general location. Prior to the bank construction, the NC
DOT began the construction of an upgrade to US 24.
The design for the bank was to be phased development with the initial phase not
to exceed one -acre. Land disturbance crossed the one -acre threshold and it
appears that a stormwater permit is required for the site.
Our client has received a notice of violation from the Land Quality Section and
the required erosion control plan has been submitted for approval. A request for
additional information has also been responded to resolve the issue of erosion
control.
■
TEL [phone]
FAX [phone]
■
P.O. Box 33068
Raleigh, North Carolina
27636.3068

L7= Kimley-Horn
= F-I and Associates, Inc.
Our client has also received your office's Request for Stormwater Management
Permit Application and the Notice of Recommendation for Enforcement on July
26 and July 29, 2002, respectfully.
On August 2, 2002 Kimley-Horn staff met with Ms. Noelle Lutheran to discuss
the site and the requirements for complying with the State rules. Subsequent to
that meeting Kimley-Horn staff requested the assistance of Eastern Soils Limited
to conduct a soils investigation of the site in anticipation of developing a
stormwater management plan to meet the requirements of the State rules (report
included with application).
Two borings were conducted on the site to estimate the seasonal high water table
and the hydraulic conductivity of the soils. The soils investigation concluded that
the depth to the water table corresponds with the bottom of a clay layer located at
approximately elevation 9.0. Further, because the site is located in a midslope
position above the White Oak River, the investigator believes that it is likely that
the permanent water table is confined beneath the clay layer, draining towards
the river through sand layers beneath the clay. He also believes that water drains
along the top of the clay layers during periods of rainfall and it is unlikely that
water perches on the clay layers for very long.
Given the location of the site, soil conditions, water table, and state of
construction the following design considerations were included in the design of a
stormwater management plan for the subject site.
The pre-existing site contained approximately 28,400 square feet of impervious
areas. The new site contains approximately 25, 368 square feet of impervious
area which means that the new site has reduced the amount of impervious area by
3,032 square feet or by approximately 10.5 percent.
The first option that was evaluated was to see if the site drainage could be re-
designed to provide for infiltration runoff from the first one and one-half inch of
rainfall from all impervious areas. Because the site has been completely graded
with curb and gutter, asphalt, and roof drain system constructed it is apparent that
there is a small area, approximately 3896 square feet that can not be captured and
treated by an infiltration facility.
In investigating the possibility of an infiltration facility, the soils report indicated
that with the confining clay layer located at the ground water elevation that it
would not be possible to construct a conventional infiltration facility. We believe
this to be correct because there appears to be no available elevation difference
between the bottom of the clay layer and the water table. Clearly there is not
enough space on the site to construct a wet pond and I believe that an alternative

EMPI Kimley-Horn
= and Associates, Inc.
stormwater facility is warranted. Therefore, the following stormwater design plan
is being submitted for approval.
Stormwater runoff from impervious areas will be collected and directed to an
infiltration facility located between the driveways connecting to Elm Street with
the exception of runoff from approximately 3900 square feet of driveway. This
small area is located at an elevation too low to allow drainage to the facility.
A bypass structure has been designed to bypass all runoff above the design storm
consistent with the Division's BMP criteria. The infiltration device will require
excavation of the clay layer down to the top of the permanent ground water table
and then back fill with a minimum of two feet of select sand material to form the
bottom of the facility. We believe that this will provide removal of 85 percent of
the total suspended solids. It is not possible to capture the discharge at the bottom
of the filter due to surrounding streets and drainage system elevations.
The proposed design captures and treats runoff from approximately 21, 472
square feet compared to no treatment from approximately 28, 400 square feet that
previously existed. We are not able to capture 100 percent of the new
impervious areas but it appears that we are significantly increasing the treatment
of runoff from the site compared to the pre-existing conditions.
15A-NCAC 2H 1003 (d)(3)(B) provides development may also be permitted on a
case -by -case basis if the project "is redevelopment which meets the requirements
of this Section to the maximum extent practicable". 2H.1002 (14) states
"Redevelopment means any rebuilding activity which has no net increase in
built -upon area or which provides equal or greater stormwater control than the
previous development (stormwater controls shall not be allowed where otherwise
prohibited)". The site imperviousness has been reduced, stormwater
management is being proposed and the plan meets the intent of maximum extent
practicable as called for in the rules and that water quality will be improved by
the proposed plan.
Therefore, under the provisions of the rules we are requesting approval of our
stormwater plan as a redevelopment site and as an alternative design.
The construction of the bank is nearing completion and all consideration to a
quick review of the application is requested. I appreciate the situation that exists
and understand the stormwater issues are our responsibility, however, it is our
request that this issue be resolved as quickly as possible and before early October
2002. If you need additional information, please give me a call at [phone]
and I will expedite all efforts to respond to your request. We will be available to
discuss any issues that you or your staff may have and would appreciate

Kimley-glom
and Associates, Inc.
telephone or email contact to reduce the amount of time needed to resolve the
permit application.
Should you not be able to contact me, please contact either Peter Bishop or Brian
Michot at (9 t9) 677-2000. Thank you for your assistance and your quick review
of the application is appreciated.
Very truly yours,
KIMLEY-HORN AND ASSOCIATES, INC.
b6L— `�
Harlan K. Britt, P.E.
Associate
Enclosures
Cc: Rick Shiver, NCDENR
Gary Williams, First Citizens Bank
Thomas Morris, First Citizens Bank
Peter Bishop, Kimley-Horn & Associates
Brian Michot, Kimley-Horn & Associates
Matt Callahan, Carneal Downey Construction
H APM01 17370181E tormwaterpermittran s mittal LTR. doc