SW8000631_HISTORICAL FILE_20091203

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE
El CURRENT PERMIT
❑ APPROVED PLANS
C� HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
�(J7� 9�o2O '5)
YYYYMMDD

AF-Aw
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
December 3, 2009
Mr. John Thomas, Owner
Thomas Management
P. O. Box 15127
Surfside Beach, SC 29587
Division of Wafer Quality
Coleen H. Sullins
Director
Subject: Session Law 2009-406 — Permit Extension
Stormwater Permit #SW8 000631
High Density — Kentucky Fried Chicken — 6826 Market Street
New Hanover County
Dear Mr. Thomas:
Dee Freeman
Secretary
On August 5, 2009, the Governor signed Session Law 2009-406. This law impacts any
development approval issued by the Division of Water Quality under Article 21 of
Chapter 143 of the General Statutes, which is current and valid at any point between
January 1, 2008, and December 31, 2010. The law extends the effective period of any
stormwater permit that is set to expire during this time frame to 3 years from its current
expiration date.
Accordingly, Stormwater Permit # SW8 000631, which was set to expire on
September 21, 2010, is now in effect until September 21, 2013. Please resubmit the
renewal application and fee at least 180 days prior to September 21, 2013, which would
be March 21, 2013. A copy of the Renewal Application can be obtained from the
following website: http_//h2o.enr.state.nc.us/su/bmp forms.htm.
If you have any questions, please contact the Division of Water Quality in the
Wilmington Regional Office at 910-796-7215.
Sincerely,
U
Georgette Scott
Stormwater Supervisor
Division of Water Quality
S:IWQSISTORMWATERIRENEWAL1SL2009-4061000631.dec09
cc: Wilmington Regional Office
Central Files
Wilmington Regional Office
127 Cardinal Drive Extension, W'dmingtcn, North Carolina 28405 One
Phone: [phone] FAX[phone] Customer Service: 1-877-623-6748 N orth C aro li n a
Internet: www.ncwaterquality.org Naturally
j atura l ,
An Equal Oppcounily 1 Affirmative Action Employer �/ I "J

State of North -Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Division of Water Quality
July 26. 2000
Mr. John Thomas, Owner
Thomas Management
PO Box 15127
Surfside Beach, SC 29597
Subject: ACKNOWLEDGMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 000631
Kentucky Fried Chicken
New Hanover County
Dear Mr. Thomas:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Kentucky Fried Chicken on June 19, 2000. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
1. The minimum side slopes to be vegetated are 3:1, H:V. Please correct the swale detail, on
page 5 of 6, to show a minimum of 3:1 slopes.
2. By what is shown on the plans the storage elevation is 47.80 feet MSL as given on the outlet.
Please correct the plans to show that runoff will only leave the basin at an elevation of 48.00.
3. What would the 1.25 foot sediment removal benchmark be based on if there is no
pretreatment device proposed? If the sediment removal benchmark will be based on the
basin itself, then no more than 6 inches of sediment accumulation will be allowed before it
would have to be removed. I have modified the statements on page 3 o3, please verify
changes and acknowledge the acceptance of this condition.
4. Please verify that the 1,600 sf of pervious pavement is included within the 25,344 sf of On -
Site Parking.
Since the basin is trapezoidal, as noted on the plans and supplement form, please base both
the surface areas and volumes on the true dimensions of the basin, not on a rectangular
shaped basin. By my rough scaling of the plans the surface area of the bottom, 43.0, is
approximately 2,070sf with the surface area of the overflow elevation, 48.0, approximately
5,117sf. With these two areas the provided volume only comes out to be about 17,968 cf.
Please verify all dimensions surface areas and volumes to correct plans, calculations, and
application as needed.
6. Please dimension the bottom elevation, 43.0, of the basin as shown on page 1 of 6.
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50°1',, recycled/10%, post -consumer paper

Mr. Thomas
July 26, 2000
Stonnwater Project No. SWS 00063I
----------------------------------------------
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 August 26, 2000, 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 flan, 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,
*Scottnson
Environmental Engineer
RSS/sav: S:IWQSISTORMWATIADDINFO1000631.JUL
cc: Wilmington Regional Office
Margaret Gray

Permit No. Oooc� 31
(to be provided by DWJ ^�
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
. INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
_DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : KFC -- Thomas Management
Contact Person:. John Thomas
Phone Number: ( 843) 238-1046
Thus worksheet applies to: Basin No. 1 of h in Drainage Area 1 of I
(as identified Dn plans) (from Form SWU-101)
II. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be based
upon an actual field investigation and soil borings. County soil maps are not an acceptable source of soils
information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Kureb
Infiltration Rate 1.96 in/hr or (circle appropriate units)
SHWT Elevation _ 40.5 ftnsl (Seasonal High Water Table elavation)
Basin Design Parameters
Design Storm 8.0 inch (I.a inch event for SA waters, I inch event for others)
Design Volume 21.160 c.f.
Drawdown Time 0.16 days = 3.9 hours
Basin Dimensions
Basin Size 37.0 (Trapezoid) ft. x
Basin Volume Provided 21.450 c-f.
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
43.0
fmsl
48.0
fmsl
48.0
fmsl
74.5 eft.= 2.757 sq. ft (bottom dimensions)
Form S WU- l 03 Rev 3.99 Page 1 of 3

III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H.1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached, If the applicant has designated an agent in the'Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applican s Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DWQ approval has been obtained.
f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
g. Drainage area for the device is less than 5 acres.
h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch
event for areas draining to SA waters ). Design volume and infiltration calculations
attached.
j.. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off site drainage. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3: I (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m. Bottom of the device is covered with a layer of clean sand to an average depth of 4
inches or dense vegetative cover is provided.
___ Yz_37C-s1�►,J n. Vegetated filter is provided for overflow and detail is shown on plans (Required
minimum length is 50 feet for SA waters, 30 feet for other waters).
o. Flow distribution mechanism within the basin is provided.
p. A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
`(Z- q. Runoff in excess of the design volume bypasses off-line systems (bypass detail
'� r
provided).
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area
is stabilized.
Form SWU-103 Rev 3.99 Pacre 2 of 3

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
l . After ever), runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation. vegetative cover; and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vcoetated cover to maintain a maximum height of six inches, and remove trash as needed.
a. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications. VA-6100
4. Remove accumulated sediment from the infiltration basin annually or when depth
in the `�++`" �``�` is reduced to 75% of the original design depth. The system shall be restored to the
original design depth without over -excavating. Over -excavating may cause the required watertable
separation to be reduced and may compromise the ability of the system to perform as designed. Removed
sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will
adversely impact water quality (i1.e. stockpiling near a sttormwater treatment device or stream, etc.).
A benchmark shall be established in the The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads feet in the , the sediment shall be
removed from the infiltration bas'
/Ab/90
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
control devices as allowed by NCAC 2H A 000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title: John Thomas. Owner
Address: P.O. Box 15127. Surfside Beach. SC 29587
Phone: ( 843 ) 238-1046 Date: to i 4 1CUo
SiLnature:
Note: The lega v respon ible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident o division has been named the president.
allota Public for the State of _bo �' p-&"e- ,County
do iereby certify that personally appeared before me
this clay of and acknowledge the due execution of the forgoing infiltration basin
maintenance requirements. Witness my hand and official seal,
SEA.L My commission expire a 0
Fos m; W U; 1 r-3 Fier 3.99 Page 3 of 3

i
VK
ICKSON
Engirtem • PCuuurs • Surveyors
909 Market Street
Wilmington, NC 28401
[phone] • FAX:[phone]
RECEIVED
SEP 0 8 2000 LETTER OF TRANSMITTAL
-BY.---
TO: NCDENRIDWQ DATE:9/8/00
127 Cardinal Drive RE: KFC — 6826 Market St
Wilmington, NC 28405 SW8 000631
ATTENTION: Scott Vinson
We arc sending you: 0 Attached
VIA: Overnight
The following items: e Shop Drawings
Specifications
Under separate coverx
Regular Mail 71 Pick-up
11 Prints Plans
Copy of Letter Change Order
JOB NO.: 00221.
n
0 Courier
RSamples
COPIES
DATE
NO.
DESCRIPTION
1
Infiltration Supplement
1
Infiltration Basin Calculation
THESE ARE TRANSMITTED as checked below:
For Approval
x As requested
Approved as submitted
For your use
For review and comment
Approved as noted
Remarks
EReturned for corrections
Scott — thanks for taking the time to see me yesterday. Attached the info you requested. Let me know if you need
anything else. Thanks again,
COPY TO: file SIGNED: Margaret Gray

"'S '.
it,�t� �.

z
0
F-
J
�gg zzi
U �N� 13
M Z y
w J # zs�
SURFACE AREA ELEV. 48 o z
© �O
SURFACE AREA ELEV. 4 0 w ¢
0 Fco - O
C/)
H Q
Z Z w
w H
R
Ir
Z �Z O�
0 U)
°- op ir Z
w o YL1 IL
w
0�
cr
LL
SURFACE AREA ELEV. 48 = 5,824 S.F. SURFACE AREA ELEV. 43 = 2,757 S.F. Z \p . • .. �d''•,�
AVERAGE END AREA CALCULATIONS LL '
5,824 + 2757 = 8,581 / 2 = 4,290.50
4,290.50 (AVG. AREA) x 5.0' VERT#CAL = 21,452.50 C.F.
' DRAWING SCALE 1' = 20' 'f�� . � �� aP•''�
♦ F

FWK
E31CKSON
Er:yi errs • PIr1 rtncrs • 5urtcyors
LunA'cope Architects
August 2, 2000
Mr. Scott Vinson
North Carolina Department of
Environmental and Natural Resources
Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: Thomas Management, Kentucky Fried Chicken
DWQ Comment Response, Storcnwater Project No. SW8 000631
Dear Mr. Vinson:
Attached are revised site plans for Thomas Management's Kentucky Fried Chicken. Below are
responses to your six comments of July 26, 2000 request for additional information.
1. The minimum swale side slopes have been changed from 2:1 (HI:V) to 3:1. Please review
Construction Details, sheet 5 of 6.
2. The top of the infiltration basin and spillway has been set to 48.00. Please see plan sheet 1 of
6 for this change.
3. We acknowledge the modifications to page 3 of 3 of the Infiltration Basin Supplement
concerning the sediment removal benchmark.
4. Please note that pervious pavement has been removed from the site plans. This area is
included in the total impervious calculations.
5. The basin configuration is irregular and the surface areas and volumes were calculated using
functions within AutoCAD. The calculated area at elevation 43.0-ft is 2,757 ft2, at elevation
48.0 ft the area is 5,824 ft2. Average end calculation for volume for a depth of 5.0 rt was
21,452.5 ft3.
6. The Layout and Geometry Plan, Sheet 2 of 6, is attached for your review. This sheet includes
infiltration basin top and bottom dimensions and layout.
Sincerely,
W.K. Dickson & Co., Inc.
John M. Hazelton. P.E.
Project Engineer
cc: Mr. John Thomas, Thomas Management
Ms. Margaret Gray, W.K. Dickson
Attachments
S:1I'RO.II,C'1'S100221.80_KI--CII'ermits\I)WQ Lettcr Response 7-2-OO.doc
909 Market Street 910.702.4200 Mania, GA Hkko,y, NC
Wilmington, North Carolina Fax [phone] Asheville, NC Raieiyh, NC
28401 www.wkdickson.com Charlotte, NC Columbia, SC

DICKSON
Engineers • Planners • Surveyors
Landscape Architects
JOB NO. 00'111,190
SHEET NO, i OF 2-
J03 INAME_6 r i hoc-, c, M Ay%ei, COMPUTEO BY _J M H DATE
SUBJECT 1 -� : ; , � r u ^ CHECKED BY
DATE
_i}
Yn N
T�a_�_
�,Q
/4c'A Et aj i�1
I 1
I
I
I
l
I
! f
I
f I
I I
��I
I I
I•
I
I I
I
I I
I
f
�i
I
-
I
I
I
I_LL11
I
I
1
1
##
J_Z
I -�
,±
T-I
V' - Oki t
!!
I
r d�
r t
I
I
I
I
i V t �[[J I �L'r-LI-�
LLL�LLL
'._L_J_���
I
I
j _
+ILIL
Q Y G v►i i' 'rl '�
I I 1.__11__I
1 !! I k I-! I _ I
I'
5 j
�
I
I
I
I I
I
1
11
I
I
I
I I
1
1
�
l
j-j
i
1
--To
104
LI'
_V
n
v S
:-I-t'tr
i d i�
7
U
f 1 1#-�
_
I
i
I
I
II
!
I
I
I
I
I
I
! I
i
I
I
I
!!
!
I
I
I.
I
L I
L
I
I
E
1
l
I
I
I
I f
I
lI�_ J
I!
I!
1 1
I I
I I
I!
I
I I
lI.1I}
I
i
v_����
_i _I_
�f
_ _
u �n ca � '�
r r
I I I
o •,--�_
I
�� '�
Y1 f
I
?'��
I
�
-i-
�^
-L
-i____
I I
I
II
LLJ
-tora,k
LN_1 e��k^n-�_�
�:ral
�n .;J
o$r
1 1 1
1
1
g_r
1
L
(_
1
-i�
TI�LI -1-7
��
_�_
I
�`r
I i
!+ •
_ I
I
o '
I 1
I C o�t��fi_1
L1-iII
!
I
I
I
+_..
(a
l-o
I I
fi
1LLi
I, i
i t
I
_
-
11
I
I_
L�J-i
I
Fl F
71-Fl
I��
i�-
_
_
UL
}4�
1I�� Z1 g
CE,ITCcI�:3--
{�f�Z
r�-_LI�21
n1
P' I f
-L
I 1.I.H
L
LI
(-_1
`I I
mo'1-�
1
i-L I--L
� 1_...1._L
L i-I 1� -1i
,J! k _-
jr�� i-1 � I i 1
Ii 1i 1 -1
LI i I I
I I I I I
L
I
I I I I
I
I
I! I ?
I I
! I I I I I
-�-1-II�...Li�!-.L!_i-L_
I
_I-L
I�I _ICI
I F
_�-_i,�
I I i
`I ? 1 i_i i
I_F 11 1 FT-
.L _(
WL! I it i L�-j
I I i I f i 1
I I L:,_ _-J ! i
i i f, i i I I _I_ _�i
i I I-�-I I
Ll�i ,
! L I I
' 1 I
I
11
I i L_1_i
I I I
i
!
I I�•��_! �C�
+ I i_I
r� 1
L"
I I
l 1 I+— 1ILL
!
I�Lf iTl_Li
�I I I �_i i
! i I
I i I I i
I IJ I
+�y��'µ� •� 1
I I r
L k i i L Lj_
�
- �_I 1 f
i! f'! I
_iIj LF
_1 _I
1i IE -�L IL
_ 1-1 —;L
I-i
1
"7�J1
1 1 1 1
I Jrff�fI
Ii' F
��e
14
4!

I® DICKSON
Engineers • Planners • Surveyors
Landscape Architects
JOG NAME 5 a n5• COMPUTED BY
SUBJECT
CHECKED BY
JOB N0._2 )gn
SHEET NO. ' OF Z
, Mll DATE
DATE
ml�
"u
wv
I
I E
I I
I
�a��✓1
�ha 7Ci
p__C�/�;�
i! I
"�:
J�2+oilc�I
I Cc
_
i
_I
4 u
_
1 c.
1
a
k
!
GtV011
T
L
o. �+ 5
I
11
ti
1-
! 1
I
M 1
C e'rLII
i
I
I
I_
k
-
_
i
I
I
!
!
!
I I
I I
I I
'
i
I
I
I
it
I
II
LaLZ�
1
I
1 1
I
I I
-1�r'i
I11
l
1 1��
i 1 1
I [
1
I
! I
1
I
Ill
!
±1ft
tt
_
i
_L
II
1 "
/}+
�I
IIfI
r_>V41�'
r r
I
I
II
I
F FI I
I
,,
I
I',;—�—
G
h
1
!2
i
I
I
F
I I
1 I
I
I
I
!
V'oi l+ ml
I I! h I
1
I
Ilifillill
! !
o
I I
I
I
I
I I
I
I�
I
I
I-
� �, �'��•; c � � f °�I' k^!'
Ii ii
I !
L L-I _. -L
! I I II
II I
�i"1T
I
li
o�_
I
-I
III
!•
II
I
� 7 �-f�� -i�T"
I
I i !
f��
�
�
I
i L
!
I-
I
!_
I
I!
I
!!
I �!
I I
I
I
j_ �-
I i
I I i
_I
-
-I I�
i l
{�rI I H!
I
l!
F �
I 1 i�
I
I
j J!
I 1 L�F
I
I i 11
1-
i
I i
I
!
I
I
I -
I
I_Iy1
I
I I
�
1
F -T�Lill,-r
1
!�I
E} -I_
� I-�i�__
I I j
_I I—
I__I
-I-i 1 [
1 I-
F
I -1-fi-
-!-
1!
1!
I I
LL
LL
I I
I I
�n
I
�
f 1! f�
I_I
IFI
1
L!_.L
-I
I I I I-41-L4
I I���I_
_ _IfII
,_L�_L' L�
F i �i . _
! �1 l i F
`!
I' I!!
I- _� _I I_{-i
1 1
�_I � I _ I
!
I
!
LI
I!!
I
-
j�f-
I I
I
I Fi
__I��
I
l l l
J4f I
! f
1
_I I
I I I
I I
1_
I I_!
I I
I I!
11
I
d_ _LLI_
4
1 1 1
I�I
1 1!
1
I
1 1
I I FFFFF
1 1
FL
I
I
I
!
!
!
i
1
FFL
I II
!
III
III
C'I�I;ILI11'lIIL-fIIII-Li
IF-"
I_! LI
�{-
1 I I_`I
1
[L�I
II
11 J_F i�_1-L1
�I'- Li
LI I 1„__I_!
f -i i 1_ " f-L
! �i 1�_t I!
11 II! 1
_--_,___.FER"
a
I I I
L I I_j-i
I i
!_Ff IV
# I1
„1_1-1 1-L_1
i I
L1 !
IllI I i
I!rILL
1
1
!
1 LI1,.__.!
L
1_1
I_1
1 L_-I
L
i I
1 1 1 I�_-f_
�,f I r
1 1 f
1_I_
II
i--
i _1-_i L1
I I 1 f
I ��'�
_I ! �_I
�Ik-
LLi I Ll
II. I I) -I l
I '1
I_.L._L!-_
1 1
_i�I
1 i 1 H 1
I.._j I_
1 1 I
!
I I 1
L LI
F! 1 I
I
)...__L
I I 1
f IMF
1 I I
II
1--!
I
I
I III
! j
I
I
I
I
I

SCOF 000(03l �.1�'I�Icef Sf hex fu
IBC-tiTucKY �Iz�CI� �e�Ic,',�s.
DIVISION OF WATER QUALITY
INFILTRATION SYSTEM INVESTIGATION
1. The minimum bore depth:
ac 0 q17Ci 4-J�S
PYU/J. by m _ 4-3
2 r7 51
2. The type of soil:
I<ure,h
3. The expected infiltration rate:
Z It/hr
4. The depth to the Seasonal High Water Table:
` (EIe,. 90 5)
5. Additional comments:
Pet -kill 5 Wf-vve
Nc,> ,`ut-fh 26 an .
Signature of Regional Office Personnel:
�7�•DlJ �'y
Linda Lewis, DWQ
Permit Application No. '�
S:\WQS\STORMWAT\FORMS\INFINVST. FOR
Vincent Lewis, Soil Scientist
Date &-2C�-00

Stormivater Narrative
KFC—Thomas l'lanagement
StorniNvater management for the ultimate build-otit of the KI-C—Thomas Management site
will consist ol' an infiltration basin. The single drainage basil is 44,096 ft'- nl area and is
69.2'%o impervious. Stormwater will be routed to the infiltration basin by inverted crowns
in the pavement sloping towards the infiltration basin. Spillways connecting the
pavement to the ponds will consist of Class l3 riprap to prevent erosion of the spillway
and of'the infiltration basin bottom.
The infiltration hasin was sired to fully contain the 25-Year storm runoff front 8.0-111ches
of rainfall. Stormwater will not be released from the site for storms at or below the 25-
Year event. Tile Rational i'vtethod was used to calculate the runoff volume using a
composite runoff coefficient of C, = 0.72. The 25-Year stony runoff volume was
calculated as 21,160 ft'. The provided storage within the infiltration basin is 21,500 ft3.
The storage calculations do not account for infiltration during the stornl.
The soils report found tile subsurface material to consist of slightly silty sands and clean
sands. Soils borin,,s taken in the back of the property extended to a maxtmunl depth 8.0-
fE below the average grade of 48.5-feet, The borings did not encounter the groundwater
table. The measured infiltration rate ranged between 1.75 to 2.17 feet per hour. An
average rate of 1.96 feet per hour was used in the calculations. "['lie SSLME soil report and
infiltration basin engineering calculation sheets are attached for _your review.
The infiltration basin invert will be set at 43.0-feet and the crest at 48.0-6eet with side
slopes set at 3:1 horizontal to vertical. The basin bottom and side slopes will be grassed
to provide a dense vegetative cover. The basin design includes a flow distribution
mechanism consisting of 15-inch pipe cut in half and anchored to the basin bottom. The
basin will include an overflow spillway set at an elevation of 48.0-feet. The spillway will
direct flows above the 25-Year storm as overland, shectflow towards an existing dramagc
ditch 220-feet to the east. Existing stonllwater runoff from the site drains as sheet flow
towards this drainage ditch. It should be noted that the basin should be capable of
containing storms above the 25-Year event due to the low water table elevation anal the
high infiltration rate of the soil.
%V.K. Dickson S, Co.

•, •.• — r — r� a� a.:o •� r r rcv:v a4k171r
w 1 "PI 1 N4 T O N
ID:9107999958
PAGE 1,4
June 7, 2000
Thomw Managetnectt
Post Office Box 15127
Surfside Beach, South Carolina 29587
Attention: Mr. John Thomas
Reference: Double Ring In.nitrometer Vesting
Proposed KFC Site
North Market Street
Wihnin4 on, North Carolina
Job No. 1063-00-218
Dear Mr. Thomas:
As request4 S&NIE personnel have recently conducted field testing of the surncial
soils at the subject sites Specifically, our representatives performed the foIJ.owi_ng, work items on
June 5, 2000:
1- Advanced two hand-au.aered borings (HA-1 and HA-2) to a
depth of 8 feet below the existing ground surface at the
approximate locations shown in Figrre l in order to visually,
classify the in -place soils. A MunseIl Soil Color Chart was used
to define the hue and chrorna of the recovered sod samples.
2. Conducted one double -ring infxltrometer test at a depth of
approximately one foot below the existing ground surface near
Boring HA-2. This testing was conducted in geueral accordance
with American Society for Testing and Materia]s (AS I' fl
procedure D-3385 entitled, "Infiltration Rate of Soils in Field
Using Double -Ring Infiltrometer"-
Based on our field- classifications of the soils excavated at the hand-augered boring
locations, the in -place soils generally consisted of slightly silty sands and clean sands that extended
to the maximum completed boring depth of 8 feet below the existing ground surface at Boring
HA-1 and to a depth of 7.5 feet at Boring HA-2. From a depth of 7.5 feet to the completed boring
depth of 8 feet, slightly clayey sands -%th roots were encountered at Boring I-Lk-2. No water was
encountered at either of the two lend-augemd boring locations. The water level -will fluctuate Nvith
climatic and seasonal conditions and could be higher or lower at other times of the year- Eased on
The attached field logs and the data presented in theUS. I.S. Depat went of Agriculture's publication
entitled, "Soil Survey of New Hanover Courtty, ]North Carolina", it is our opinion that the depth to
seasonal high water cxceeds 6 feet. Detailed descripiioxrs of the subsurface soils are presented in.
Table 1.
ScZNE Inc. ; 1410] 749-9945
64C9 Amuerdam 'Nay, Buddins 9-3 ti910) 799-99SO 6
Wilmington, Nortii Corolino 28405 1 v✓wwsmeinc.cam
RECEIVED
i J U N 0 7 2000
1BY:

Thomas Management
June 7, 2000
Page Two
The measured infiltration rates at the test locations ranged Lon.- about 21 to 26 inches
per hour with an average infltzaton rate of appro3dzmtely 24 inches per ha,.r_ A summary of the.
field test results is presented in Table 2.
SLIME appreciates the oppoMmity to provide our services during this phase of the
project. Should you have any questions after reviewing this letter, or if use can be of additional
assistance, please do not hesitate to contact us at your convenience.
Very truly yours,
S.�ME, INC_
Steven D_ Kel• , P.E.
Branch Mana
Michae1'W. Behen, P.E.
Senior Geotechnical Engineer
SDK:MWB/jns
Attaclunents
Fax: W.K. Dickson Ersgi eei-s, Ms. Margaret Gray

TABLE 1
Soli Descriptions
Proposed KFC Site
North Market Street
WihriinA on, North Carolina
Job Number 1063-00-218
Value/
Location Dzptn
Hug
Chrom
aoil Description
HA-1 0-6"
2.5Y
4,1
Dark Gray Fine to Medium SAND — a Littlo Silt with Rock lviat
6"-13"
2.5Y
7/1
Light Gray Fine to Medium SAND — Trace of Silt
13"- 36"
10YR
514
Yellowish Brovyn Fine to Medium SkND -- a Little Silt
36"46"
2.5Y
6/4
Light Yellowish Brown Fine to Medium SAND — a Little Silt
46%72"
2.5Y
7/1
Light Gray FWe to Medium SAND — Trace of Silt
72"-80"
2.5y
511
Gray Fine to Medium SAND — a Little Silt
80"-96"
2_5Y
7,11
Light Gray Fine to 1�,Zediurn SAND — Trace of Silt
No groundwater was encountered to depth investigated.
HA-2 0-6"
10YR
3/2
Very Dark Grayish. Bzourn Fine to Medium SAND -- a Little Silt
6"-15"
2.5Y
3/i
Very Dark Gray- Fine to Medium SAND -- a Little Silt
15"-20"
2.5Y
5/2
Grayish Brown Fine to Medk= SAN-D - a Little Silt
20"-36"
10YR
5/4
Yellowish. Broivn Fine to Medium S_AN-D - a Little Silt
36"-48"
2.5Y
6/4
Light Yellowish Brown Fine to Nfedium SAND - a Little Silt
48"-72"
2.5Y
7/1
Light Gray Fine to Medium SAND — Trace of Silt
72"-90"
2.5Y
3/1
Very Dark Gray Fine to Medium S ANT) — a Little Silt
90"-96"
2.5Y
511
Gray Fine to Medium S_A.a`ND — a Little Clay with Organics
(Roots)
No groundwater was encountered to depth investigated.

■ . 1.11W
Double -Ring Tnffitroxneter Test Results
Proposed. KFC Site
North Market Street
Wilmington, ton, North Carolina
Job Number 1063-00-218
Date of Test
Depth of Test Below Site wade
Depth of Watcr m Rings
Inner Diameter of Inner Ring
Inner Diameter of Outer Ring
Depth to Groundwater
Average Infiltration Rate
: rune 5, 2000
12 inches
7 inches
11 3/4 lmhes�
22 5/8 inches
None encountered
23.9 inche5ikiour
Soil Profile at Boring ETA-2
Valle/
Location Depth Hri Chrozra
HA-2 0-6"
10YR
3i 2
6%15"
2.5Y
I' 1
15"-20"
2.5Y
5/2
20"-36"
10YR
5I4
36"-48"
2.5Y
614
48%72"
2.5Y
711
72"-90"
2.5Y
3/1
90"-96"
2.5Y
511
Soil Desciiptior,
Very Dark Grayish Brown Fine tc Medium SAND — a Little Silt
Very Dark Gray Fine to Medium SAND — a Little Silt
Grayish Brown Fine to Medium SAND -- a Little Silt
Yellowish Brown Fine to Medium S,kk~ D — a Little Silt
Light Yellowish Brown Fine to Medium SAND — a Little Silt
Light Gray Fine to-Xiediurn SANID, — Tracr of Silt
Very DarkGray Fine to Medium SAND — a Little Silt
Gray Fine to Medium SAND -- a Little Clay with Organics
(Roots)
No groundwazer was encountered to depth investigated.

4n: WK
BPOICKSON
Engineers • Pfzimers • Swvcyors
909 Market Street
Wilmington, NC 28401
[phone] 0 FAX:[phone]
I
TO: NCDENR/DWO
127 Cardinal Dr Ext
Wilmington, NC 28405
ATTENTION: Noelle Lutheran
We are sending you: �x Attached
VIA: 7 Overnight
The following items: R
Shop Drawings
Specifications
LETTER OF TRANSMITTAL
0 Under separate cover
El Regular Mail Pick-up
EPrints x Plans
Copy of Letter B Change Order
0 Courier
ESamples
COPIES
DATE
NO.
DESCRIPTION
2 sets
6/15/00
Grading & Paving, Layout & Detail Sheets
2
6/14/00
Stormwater Permit Application
1
6/14100
Infiltration Basin Supplement
1
Stormwater Narrative
1
6/9/00
Stormwater Calculations
1
617100
Soils Report (S&ME)
1
6/14/00
$420.00 check#0450
THESE ARE TRANSMITTED as checked below:
eFor Approval e As requested R Approved as submitted 8 Returned for corrections
For your use For review and comment Approved as noted
Remarks:
Noelle — Attached please find the appropriate state submittal requirements. Please do not hesitate to call if you need
anything else. Thanks,
COPY TO: John Thomas trans only, Bill Davis trans SIGNED:
only/WKD, file w-encs