SW8020120_HISTORICAL FILE_20111021

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�(�lGt'D
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
4Xl9`l
YYYYMMDD

Pender GIS - Deed Search
Page 1 of 1
The office of the Register of Deeds for Pender County hereby DISCLAIMS, and the user hereby WAIVES
any warranty, implied or otherwise, as to the correctness of the information contained herein.
Deed Book:.2083 D Page: 0304.jpg 111, Zoomin Zoomout Previous Next
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REGISTER Cr' DEEDS
FENDCF COUNTIX
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0410212003
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KWT" CAROLINA GENERAL NARRANiY DE®
STATE OF NORTH CAROLINA Parcel No. UO2 037 082
Record No.
COUNTY OF PENDSR Excise Ta ZSO de
Thia instrument was prepared by: W. James B
The attorney preparing this instrument has made no record search
or title examination as to the property herein described, unless
the same is shown by his written and signed certificate.
Further no tax advice of any nature has been rendered to the
parties to this instrument.
Brief description for the index: Lot 82A MB 35 P 8
THIS DEED, made this 19th day of March, 2003, by and between
SECOF, LLC, a North Carolina limited liability company,
(hereinafter called "Grantorn)1 and
COASTAL CAROLINA CAR WASH, LLC
whose mailin address is L w/G 2 8 YL 8
�z py �/ L�K�' P�9RK 80U1,fJR�PD 11h�0 �n�A .$E'drf/
(hereinafter called "Grantees).
The designation Grantor and Grantee as used herein shall include
said parties, their heirs, successors and assigns, and shall
include singular, plural, masculine, feminine or neuter as
required by context.
paid byTthe $GranteeREAS t,ereceiptrofsaitwhichrvaluable is hereby acknowledged, has
bargained and sold, and by these presents does hereby grant,
bargain, sell and convey unto the said Grantee in fee simple, the
following described lot or parcel of land located in Topsail
Township, Pender County, North Carolina:
Being all of Lot 82A as shown on a map of the division of
Lot 82, J.H. Batts Subdivision recorded in Hap Book 35 at
Page a of the Pender County Registry.
tiaovTae „a„a
004
Joyce u• -cede
Register of 4$aQs
PsT'Apr Gnuu►,Y, 64. J
http:l/gis.pendercountyne.gov/RODSearch/default.aspx 10/21 /2011

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CA201107402108
SOSID: 0898236
Date Filed: 3/15/2011 12:35:00 PM
LIMITED LIABILITY COMPANY ANNUAL "I Elaine F. Marshall
* North Carolina Secretary of State
0 CA201107402108
NAME OF LIMITED LIABILITY COMPANY: Surf City Land Company, LLC
SECRETARY OF STATE ID NUMBER: 0898236 STATE OF FORMATION: NC
REPORT FOR THE YEAR: 2011
SECTION A: REGISTERED AGENTS INE MIS ATION ❑ Changes
1. NAME OF REGISTERED AGENT: James Corvette
2. SIGNATURE OF THE NEW REGISTERED AGENT:
3. REGISTERED OFFICE STREET ADDRESS & COUNTY
1827 Washington Acres Road
Hampstead, NC 28443 Pen der
SECTION B: PRINCIPAL OFFICE INEQRMATION
SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT
4. REGISTERED OFFICE MAILING ADDRESS
P. 0. Box 1277
Hampstead, NC 28443
1. DESCRIPTION OF NATURE OF BUSINESS: Land Holding Company
2. PRINCIPAL OFFICE PHONE NUMBER: [phone] 3. PRINCIPAL OFFICE EMAIL:
4. PRINCIPAL OFFICE STREET ADDRESS & COUNTY
1827 Washington Acres Road
Hampstead, NC 28443 Pender
S. PRINCIPAL OFFICE MAILING ADDRESS
P.O. Box 1277
Hampstead, NC 28443
SECTION C: MAHA&ERS(Enter additional Mangers! Members! Organizers in Section E.)
NAME: Ellen Comette NAME: NAME:
TITLE: Member TITLE: TITLE:
ADDRESS: ADDRESS: ADDRESS:
P. O. Box 1277
Hampstead, NC 28443
SECTION D: CERTIFIC"ON OF ANNUALREPORLSection D must be completed in its entirety by a person 1 business entity.
SIGNATURE �- DATE
Form must be signed by a Manager I Member listed under Section C d this form.
Print or Type Name of Manager! Member TITLE
THIS ENTITY DOES NOT QUALIFY FOR THE 2011 ANNUAL REPORT FILING FEE EXEMPTION GRANTED UNDER SL2010-31
SUBMIT THIS ANNUAL REPORT WITH THE REQUIRED FILING FEE PF $299
MAIL TO; Secretary of State. Corporations Division. Past Office Box 29525. Raleigh, NC 27626-0525

C200826300245
State of North Carolina
Department of the Secretary of State
ARTICLES OF DISSOLUTION OF
LIMITED LIABILITY COMPANY
SOSID: 0585597
Date Filed: 9/22/2008 9:30:00 AM
Effective: 8/20/2008
Elaine F. Marshall
North Caroling Secretary of State
C200826300245
Pursuant to §57C-"6 of the General Statutes of North Carolina, the undersigned limited liability company hereby submits the —Z
following Articles of Dissolution for the purpose of dissolving the limited liability company. �C
1. The name of the limited liability company is: KAECO, LLC C1
2. The dates of filing of its Articles of Organization and all amendments thereto are as follows:
I. The reason for filing the Articles of Dissolution is : (please check one of the following Items)
❑ The time specified in the articles of organization or the company's written operating agreement has occurred.
❑ The happening of an event specified in the company's articles of organization or their written operating agreement.
+❑ The written consent of all members.
+❑ The company no longer has any members.
❑ The entry of a decree of judicial dissolution under G.S. §57C-"2.
4. The effective date (which shall be date certain) of the dissolution, as determined in accordance with N.C.G.S. §57C-" 1, is
Auciust _20, 2008
5. Attach any other information determined by the managers filing these articles.
This the 22 day of LUkUSt , 20 08
KAECO, LLC.
Name of Limited Liability Company
R IL�
Signature
Katherine R. Hill -Managing Member
Type or Print Name and Title
Notes:
1. Filing fee 13 S3tt. This document must be tiled with the Secretary of State.
CORPORATIONS DMSION P.O. BOX 2%22 RALEIGIL NC 27626-0622
(Revised January, 2002) (Form L-09)

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Ed Hill, Member/Manager
KAECO LLC
811 Wood Cove Rd.
Wilmington, N.C. 28409
Ms. Linda Lewis
N.C. Division Of Water Quality
127 Cardinal Drive Extension
Wilmington,N.C.28405
Re: Stormwater Permit No. SW8 020120
10/15/03
Dear Ms. Lewis,
I am in receipt of the letter dated 9/15/03 containing notification
of violation. I am in agreement with all points noted and it is my
intention complete or repair all items noted by January 15,2004 (90 days).
Sincerely,
Ed Hill
Via: Fax
Regular Mail
CC: John Klein,P.E. Wrightsville Engineering Services

PHONE NO. : 9107918450 Mar. 28 2003 12:54PM P1
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fie: 5N18 01012D

FROM : H
PHONE NO. : 9107918450 Mar. 26 2003 12:54PM P2
Ed Hill, Member/Manager
KA,ECO LLC
811 Wood Cove Rd.
Wilmington, N.C. 28409
Ms. Linda Lewis
N.C. Division Of Water Quality
127 Cardinal Drive Extension
Wilmington,N.C.28405
Re: Stormwater Permit No. SW6 020120
10/15/03
Dear Ms. Lewis,
I am in receipt of the letter dated 9/15/03 containing notification
of violation. I am in' agreement with all points noted and it is my
intention complete or repair all items noted by January 15,2004 (90 days).
Sincerely,
Ed Hill
Via: Fax
Regular Mail
CC: John Klein,P.E. Wrightsville Engineering Services

Enlity Name-.;
http://www.secretary.state.nc.us/Corporations/Corp.asp?532062
Corporation Names
Name
KAECO, LLC
Limited Liability Company Information
SOSID: 0585597
Status: Current -Active
Date Formed: 3/26/2001
Citizenship: Domestic
State of Inc.: NC
Duration: 12/31 /2035
Registered Agent
OF THE SECRETARY OF STATE
Corporations
Date: 6/20/2002
Document Filings
Agent Name: Hill, Katherine R.
Registered Office 811 Wood Cove Road
Address: Wilmington NC 28409
Registered Mailing 811 Wood Cove Road
Address: Wilmington NC 28409
Name Type
Legal
Principal Office No Address Listed
Address:
Principal Mailing No Address Listed
Address:
IofI
6/20/2002 l 1:50 AM

Transmittal
TO: Linda Lewis, DWO
From: John K. IQein, PE
CC: S.E. Mill, III, KAECO, L.L.C.
Date: 6/21/02
Re: Surf City Auto -Shine and S#orage
Linda,
�LH
ZOO? i Z Nflf
File No.: 21013
As requested, please find enclosed completed application forms as well as copies for your needs.
V�
Ty
3410 Wrightsville Avenue Wilmington North Carolina 28403 910.799.7967 Fax [phone]

OFFICE USE ONLY
Date Received Fee Paid Permit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
Applicants name (specify the name of the corporation, individual, etc, who owns the project):
CO L.L.C.
2. ' Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
i3iL0l�b�S E. �\�►. j �. � MEN�L� ��NAGT�rR. '
3. Mailing Address for person listed in item 2 above:
$11 woa 6t JE ' o�►D
City:_ W n-t wl(wrop State: Zip: 2,SA0R
Telephone Number: ^ ZU-
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications. letters, operationandmaintenance agreements, etc.):
,z\vP G ► -c /i �.rZ�O -�S �+� wi E A 1a� ' TCTye ► s
5. Location of Project (street address):
boo T -r%4\ T'► 1e
City: —..__ �s+LP ���"� - County: T)!Fs9
6. Directions to project (from nearest major intersection):
-T-A" U.C6 4�\•s�{ �"l 1Jn+�s41 -7,xr- t Q Cewri oN ikw'i Zlo
^t"�svtta iZ �tEl &�t VS A't So so SEC l6 o -Si VA , 0,4 t eg;=
a , 1
7. Latitude: tii Vo-1 Longitude: 3 of project
8. Contact person who can answer questions about the project:
Name: Gr> �%•%...- Telephone Number:
II. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of

� '
r• ' 1 . 1 •. , . . .� •. . • r
� .. • • ..♦ � 'r

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number _ of A and its issue date (if known) U f
3. Specify the type of project (check one):
Low Density '� High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major 'Sedimentation/Erosion Control ^404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1, In the space provided below, summarize haw Stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project,
,Coo-WOtEe V %A w w-re,ANC T\�-E e Td bw — ---
s��nnwa'r�--
2. Stormwater runoff from this project drains to the \ehMA';;rA%. W T1a&WA'1 River basin.
3. Total Project Area:. Co3 acres
5. How many drainage areas does the project have?
4. Project Built Upon Area: %
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Iiiforsnation
�-.Drainage Area'1
Drainage Area 2
Receiving Stream Name
SGuj
Receiving Stream Class
t
Drainage Area
`rp '18 SF
Existing Impervious* Area
p
Proposed Impervious *Area
%Impervious` Area (total)
(o$,Ct °o
Irripervious* Surface Area
'Drainage Areall'.., -
Drainage Area 2'
On -site Buildings
On -site Streets
....
On -site Parking
Z SF
On -site Sidewalks
Other on -site
.-
Off -site
r
Total: A881r1 SF
Total:
" Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks. gravel areas, etc.
Form SWU-101 Version 3.99
Page 2 of 4

•/ 7
f
• J ` 1 ... I . I . . I• I . f .. .
4

7. How was the off -site impervious area listed above derived?
IV, DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
N_ JAB as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than N IA' square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings,
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development sha11 be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed"in a manner that maintains the integrity
and performance of the system as permitted. .
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State. and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and Ceneral Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4

A VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management let
• Two copies of plans and specifications, including,
Development/Project name .
Engineer and firm
Legend
North arrow
Scale
Revision number & date
Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
Original contours, proposed contours, spot elevations, finished floor elevations
Details of roads, drainage features, collection systems, and Stormwater control measures
Wetlands delineated, or a note on plans that none exist
Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): U+��t+•+.�SV t�.LE EN4�a1EE�t•�6. S6v�V�C �S
Mailing Address: 3 �i �a W ut�cx��SV �u cr EVE
City: State: Zip: Z84cA3
Phone: ql0 "'i (V1 Fax: ( M3 --O 5q
ot
VIII. APPLICANT'S CERTIFICATION
I, (print or type name ofperson listed in General Information, item 2) E• 4\%J—, -=
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. , -�7 A -'-7
Signatu
Form SWU-101 Version 3.99 Page 4 of 4
Date.
2�ZZr J'L

OFFICE USE ONLY
Date Received Fee Paid Permit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1, Applicants name (specify the name of the corporation, individual, etc. who owns the project):
E CO L L• G .
2. ' Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
3. Mailing Address for person listed in item 2 above:
—_ Sll wooer C"oaF OAD
City: 1 T4N State: Zip:_ ZB-AC)R
Telephone Number: L QSO i (q� Zu.(o -_--_--
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
5. Location of Project (street address):
bNE
City: County:-NoEtiR.
6. Directions to project (from nearest major intersection):
w+ «.fie-��\�bt'e►3 TJ4V.,� l�•s . w `� n+�t+� Vv�r7 'Qs "t O�+ �tw-S Zlo
-TM' LVA V, r- f orte VS ��`t SO � -P�cu )Et7 le.. 0 . W1 L . opl- LEFT - -
7. Latitude:_ - lJ "3�� Zto•S Longitude: l?� 3 �r of project
8. Contact person who can answer questions about the project:
Name: E r> tA+tk. Telephone Number:
11, PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal Modification
Form SWU-101 Version 3.99 Page I of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit numberN� A and its issue date (if known) _ ( A
3. Specify the type of project (check one):
Low Density `� High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major 'Sedimentation/Erosion Control ^404/401 Permit _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
_ ��ro2rnnw T+evt Co �4��t�� V kA SW tr,Ta, ANh
2. Stormwater runoff from this project drains to the ,itvea4Go�S�A� t!.'sp.z�wA`i River basin.
3. Total Project Area: 1. (03 acres
5. How many drainage areas does the project have?
4. Project Built Upon Area: (.R %
6. Complete the following information for each drainage area, If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin'irif'fmation':
Drainage:Area"i `
Drainage Area 2
Receiving Stream NameLW
Receiving Stream Class
p�
Drainage Area
Existing Impervious * Area
Proposed Impervious *Area
48 $j "� SF
% Impervious" Area (total)
(a� , cj %
Impervious* Surface Area-.,:':"' ,
:. Drainage Area 1...
Drainage Area 2.
On -site Buildings
,S(. SF
On -site Streets
._
On -site Parking
Z` gF
On -site Sidewalks
Other on -site
—
Off -site
Total:
Total:
' Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

7. How was the off -site impervious area listed above derived? s►s �M.�b aN`rt�
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
N �a as issued by the Division of Water Quality. These covenants may not be
changed or deleted without the consent of the State.
2. No more than _ N Ilk square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed'in a manner that maintains the integrity
and performance of the system as permitted. _
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Farm SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99
Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including:
- Development/Project name .
Engineer and firm
- Legend
North arrow
- Scale
- Revision number & date
- Mean high water line
Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm): VJ� �'•�SV tt�E �NG��aEE�t�•`i�x S��V�GE'S
Mailing Address:
City: U•���-t��t 16�ZyytJ State: - _ Zip:— ZeApa
Phone: ( 4kkD ) IRR -Isit Fax: ( `ZqI-o5R�
V1II. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) 'FJ-k0A&0 S E- �4 \.-I• . -=
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. • -17 If ---7
Signature:
Form SWU-101 Version 3.99 Page 4 of 4
Date:
e-ZL

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Storrnwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: 4�_ o nF C k*" Avin-<H%*4c p.+,+e S'ec�tAis►E
Contact Person: _ s= 4 N t.- _ _ _ _ __ Phone Number: (TO ) 19q - 7-Gb4
For projects with multiple basins, specify which basin this worksheet applies to: N IA
elevations
Basin Bottom Elevation ll•S ft. (floor of the basin) ~
Permanent Pool Elevation IT O ft. (elevation of the orifice)
Temporary Pool Elevation 16.1 ft. (elevation of the discharge structure overflow) '
areas
Permanent Pool Surface Area 35`7 S sq. ft. (water surface area at the orifice elevation)
Drainage Area ac. (on -site and off -site drainage to the basin)
Impervious Area S,12 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA1
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
13 , 1B11 cu. ft. (combined volume of main basin and forebay)
4 43Z. cu. ft. (volume detained above the permanent pool) '
(approximately'20% of total volume)
4 • 5�0 (surface area to drainage area ratio from DWQ table)
1. Oo _ in. (2 to 5 day temporary pool draw -down required)
�• O in.
% (minimum 85% required)
Form SWU-102 Rev 3.99 Pagel of 4

L
4
Footnotes:
fz 4�/_ in
ti
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
II. 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 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. If a requirement has not been met, attach justification.
Applicants Initials
15� 0 - - a.7 The permanent pool depth is between 3 and 6 feet (required,"niinum of 3 feet).
b: ,The forebay volume is approximately equal to 20% of the basin volume.
C. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.' ' .4.;
g. The basin side slopes above the permanent pool are no steeper than 3:1.
i.
A submerged and vegetated perimeter shelf with a slope of 6.1 or less (show detail).
Vegetative cover above the permanent pool eleva-ii 66 i's'specified.
A trash rack or similar device is provided for both the overflow and orifice.
0116 k. A recorded drainage easement is provided for each'basin including access to nearest right-
;?�� � of -way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention`b`asin. "
A mechanism is specified which will drain the nasin'f6 'maintenance or an emergency.
'�ie.1p w"t. �,'Peov�Ot� .h � •,',�. .
III. WET DETENTION BASIN OPERATION AND MAINTENAi_ CE AGREEMENT
N3'
The wet detention basin system is defined as the wet detention basin, -pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does
This system (check one) 0 does
:0 not incorporate a vegetated filter at the outlet.
does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation,,erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions, such that drawdown of the temporary pool occurs
within 2 to 5 days as -designed. 7 ' " • -s y, `
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed. - `
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact,water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.'
When the permanent pool depth reads 4 •lZ feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads ' 3 15 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation L�{ 0
Sediment Re oval El. l3 •Z�i 75 0
-- Sediment Removal Elevation Q • $8 E25�%-
--------------Bottom Ele atioa 12.p------Bottom Elevation ��•S
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form 5WU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order. {,
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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: t ny-
Tide:
Address: em Waoe CcVE '2oAe , W tLM �N u�r� C Z8�4oq
Phone
Signat
Date: -- ` O 2
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
I, _ -eAn r K . a Notary Public for the State of fjorb, Carol f ad
County of Ashe do hereby certify that
personally appeared before me this day of , and acknowledge the due
tion of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
..,..-,...r......,-........ �.,...,-.r.
OFFICIAL SEAL S
Notary Public - MOM Canlina
4 ASHE COUNTY
JENNIFER K. MCNEILL
My Commission Expires Aug. 21, 2002 `
SEAL:-' • -
My commission expires
Form SWU-l02 Rev 3.99 Page 4 of 4

Permit No. _
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
ystructure details.
I. PROJECT INFORMATION
Project Name: wF Ck"%­1 Aw m•-St-k�aC
Contact Person:Phone Number: (!J10_)
For projects with multiple basins, specify which basin this worksheet applies to: _ tJ A
elevations
Basin Bottom Elevation 1• S ft. (floor of the basin)
Permanent Pool Elevation ft. (elevation of the orifice)
Temporary Pool Elevation t8 . ► ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 35`7S sq. ft. (water surface area at the orifice elevation)
Drainage Area _ 143 ac. (on -site and off -site drainage to the basin)
Impervious Area ti. k2 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume _ 13, IBI l cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume _ 4 Arl"Z _ cu. ft. (volume detained above the permanent pool)
Forebay Volume Z*7'14 cu. ft. (approximately-20% of total volume)
Other parameters
SA/DA1 4.20 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 1.00 in. (2 to 5 day temporary pool draw -down required)
Design Rainfall 1.0 in.
Design TSS Removal Z __90 % (minimum 85% required)
Form SAT-102 Rev 3.99 Page 1 of 4

r.
Footnotes:
r,
L When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
U. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stortwater 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 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. If a requirement has not been met, attach justification.
Applicants Initials
a.
_ b.
C.
d.
e.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
The forebay volume is approximately equal to 20% of the basin volume.
The temporary pool controls runoff from the design storm event.
The temporary pool draws down in 2 to 5 days.
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1: "
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is'specified.
j. A trash rack or similar device is provided for both the overflow and orifice.
N LF+ _ k. A recorded drainage easement is provided for each basin including access to nearest right-
of -way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention'basin. '
m. A mechanism is specified which will drain the basin'f6r'maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does :f;�fiqt incorporate a vegetated filter at the outlet.
This system (check one) 0 does es not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation,. erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.). quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 4.12- feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 3.15 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(ll in the blanks)
Permanent Pool Elevation kT- 0
Sediment Re oval El. 13.25 75 o
-------------- - Sediment Removal Elevation Q • 08
Bottom Ele ation IZ.p % --------------------------------------
Bottom Elevation IL•S
FOREBAY MAIN POND
75%
25%
�5.. i Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99
Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order. f
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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: �RnAtauS IE:, 1 ���.1. 1 . - - -
Title: t't1 t�+�+G 1R t`A P,*-J4 b,M
Address: 60NN; 'QoAe 1. t �t� •ram caToN , t K Z8"'Os
'Date: 2 l - Q 2
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
I, e+'lYl K, 1A C Nef f I , a Notary Public for the State of tjQ[:do Caro[ na.
County of _�,ZP- , do hereby certify that _BoadU,S F_ P H Ijl, —
personally appeared before me this 2-l-S+- day of Tjj&- %CY�2 , and acknowledge the due
of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
C
j[lR]f OFFICIAL SEAL 4
Notary Public - North Caroline
ASHE COUNTY
4 JENNIFER K. MCNEILL
(� My Commission Expires Aug. 21, 2002 j
SEAL
My commission expires I /01.� _
Form SWU-102 Rev 3.99 Page 4 of 4

Mp g107918450 Jan. 25 200311Y32AM P1
aaM pHom �..
0(y,e.
6 Je-
Ja e-
r

PROM H PHONE NO. : 9107918450 Jan. 003 11:32AM P2
Ed Rill
KAECO LLC
811 Wood Cove lid.
Wilmington, N.C. 28409
Ms. Linda Lewis
N.C. DWQ
127 Cardinal Dr. Ext.
Wilmington, N.C.28405
Dear Ms. Lewis,
I have recieved your compliance inspection/report for the
Surf City Auto Shine and Storage Project Number SW8 020120
In reference to required actions listed on the report I have
met onsite with John Klein to initiate the Design Certification.
I am currently working with a site contractor to address the
other 3 items listed. The front portion of the property(the carwash)
has been sold to another party with the written agreement that
we will work together�on the stormwater issues.
Please accept my apology far this correspondence being Sent
after the requested August 8, date.
Sincerely,
Ed Hill/KAECO LLC
VIA: Fax
Regular Mail

1 ■
1■■�?pM H PHONE NO. : 9107918450
1 ■
■ ■
1 ■
f ■
I --j 9/,�(
� u C/l'-t J
JC/4 LL
--� o D vvptl �_ L_,, � J-d c
L
S vv 3
May. 08 2002 11:05AM P1

FROM : H
PHONE NO. : 9107916450 May. 08 2002 11.05AN P2
Ed Kill
KAECO LLC
all Wood Cove Rd.
Wilmington, N. C. 28409
Division of Water Quality
Ms. Linda Lewis
127 Cardinal Dr. Extension
Wilmington, N.C. 28405
RE: Stormwater Permit SW8 020120
11/22/02
Surf City Auto -Shine & Storage
Plan Of Action
Construction of the stormwater collection and retention system
will resume the week of 11/25/02 and continue until complete.
Work to complete listed items ( per DWQ letter 10/24/02 shall
be finished within 45 days (approx_ Jan. 10, 02)
Sincerely,
:��_ a
4
Ed still
KAECO LLC
VIA: Fax [phone]
Hand delivery
,CC: John Klien
File

State Stormwater Management Systems
Permit No. SW8 020120
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
K,4ECO, LLC
Surf City Auto -Shine and Storage
Pender County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions
of 15A NCAC 21-1 .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 June 20, 2012, and shall be subject to
the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described
in the application'and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater control has been
designed to handle the runoff from a maximum of 48,877 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit,
and per approved plans. The built -upon area for the future development is limited to n/a.
4. All stormwater collection and treatment systems must be Iocated in either dedicated common
areas or recorded easements. The final plats for the project will be recorded showing all such
required easements, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from outside
of the approved drainage area.

State Stormwater Management Systems
Permit No. SW8 020120
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Surf City Auto -Shine and Storage
Permit Number:
SW8 020120
I,ocation:
Pender County
Applicant:
Mr. Broadus E. Hill, III, Member/Manager
Mailing Address:
KAECO,. L"LC
811 Wood Cove Road
Wilmington, NC 28409
Application Date:
April 24, 2002
Name of Receiving Stream/Index 4:
Cape Fear / ICWW / 18-87-(5.5)
Classification of Water Body:
"SA" (>1/2 mile)
Pond Depth, feet:
5.5
Permanent Pool Elevations, FMSL:
17
Drainage Area, acres:
1.63
"Total Impervious Surfaces, ftz:
48,877
Offsite Area entering Pond, ft2:
none, per engineer
Required Surface Area, ft2:
3,146
Provided Surface.Area, ft2:
3,575
Required Storage Volume, ft3:
4,441 .
Provided Storage Volume, ft3:
4,441
Temporary Storage Elevation, FMSL:
18'1
Controlling Orifice:
1" pipe
3

State Stormwater Management Systems
Permit No. SW8 020120
11. 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 �pPlan must be followed in its entirety and maintenance must occur at the
scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available -at alI-times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel ofDWQ. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
5. Decorative spray fountains will not be allowed in the stormwater treatment system.
6. 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.
7. 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.
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. . _ _ ..
9. The permittee shall submit to the Director and shall have received approval for revised plans,
specifications, and calculations prior to construction, for any modification to the approved
plans, including, but not limited to, those listed below: .. . .
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
area.
e. Further subdivision, acquisition, 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. .
4

i= State Stormwater Management Systems
Permit No. SW8 020120
10. 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.
11. A copy of the approved plans and specifications shall be maintained on file by the Permittee
for a minimum of ten years from the date of the completion of construction.
12. 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 facilitie's•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.
13. 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.
14. 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 schbdule 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.
Ill. GENERAL. CONDITIONS
1. 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 Permittee, 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
Permittee 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 ortermination does not stay any
permit condition.
7. Unless specified elsewhere, permanent seeding requirements•forthe stormwater control must
follow the guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual. 7 ,

State Stormwater Management Systems
Permit No. SW8 020120
8. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
if -
Permit issued this the 20th day of June, 2002,
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
`1 l Division of Water Quality
By Authority of the Environmental Management Commission
f
I
6

State Stormwater Management Systems
Permit No. SW8 020120
Surf City Auto -Shine and Storage
Stormwater Permit No. SW8 020120
Pender County
Designer's Certification
1, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the
construction of the project,
(Project)
for (Project Owner) hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans
and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
7

State Stormwater Management Systems
Permit No. SW8 020120
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -
upon area.
3. All the built -upon area associated with the project is graded such that the runoff
drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure."
.7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
_10. The permitted amounts of surface area and/or volume have been provided.
_11. Required drawdown devices are correctly sized per the approved plans.
_12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
_14. The overall dimensions of the system, as shown on the approved plans, are provided.
cc: NCDENR-DWQ Regional Office
Town of Surf City Building Inspections
8

Wrightsville Engineering Services
April 24, 2002
Ms. Linda Lewis
NCDENR, Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Request for Additional Information
Surf City Auto -Shine and Storage, U.S. Highway 50
DWQ Project No.: SW8 020120
Dear Ms. Lewis:
File No.: 21013
,APR 9 4 2002
As requested, please find additional information. Revisions to the prior
documents include the following:
1. Wetland note has been put on the Drawings.
2. USGS map has been included with the site located.
3. Symbol for roof drains have been added to the legend.
4. Nearest town and distance to NC 210 has been added to the vicinity map.
5. The application has been revised to include square footages (vs. acres).
6. Wet detention pond supplement has been revised as requested.
7. Building grades and general site grades have been lowered and a retaining
wall is specified for the southern property line area.
Enclosed for your needs are the following:
Original and one (1) copy of the revised page of the Stormwater Application Form
Original copy of the revised page of the Wet Detention Basin Supplement Form
Two (2) copies of the Narrative which includes revised Calculations
Two (2) copies of Drawings
One (1) copy of the USGS map as requested.
Should there be any question or additional copies desired, please feel free to
contact our office.
Sincerely,
WRIGHTSVILLE ENGINEERING SERVICES
FHNCKKLEIN.SPE
Enclosures
Cc: Mr. Ed Hill
3410 Wrightsville Avenue Wilmington, North Carolina 28403 910.799.7967 Fax [phone]

I/
Wrightsville Engineering Services
April 11, 2002
Ms. Linda Lewis
NCDENR, Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Surf City Auto -Shine and Storage, U.S. Highway 50
Surf City, Pender County
Stormwater Project No.: SW8 020120
Dear Ms. Lewis:
File No.: 21013
RECEIVED
I
APR 12 ZOOZ
BY: _..
We are in receipt of your letter dated March 12't' requesting additional information
regarding the above referenced project. We would life to request an additional
ten (10) working days for submittal of the necessary documents. Minor
modifications requested by your office as well as the Town will be incorporated
into the revisions.
Should there be any question or additional copies desired, please feel free to
contact our office.
Sincerely,
WRIGHTSVILLE ENGINEERING SERVICES
Cc: Mr. Ed Hill
3410 Wrightsville Avenue Wilmington, North Carolina 28403 910,799.7967 Fax [phone]

r
1�

\N R TERQ
r
> y
o -c
Mr. Broadus E. Hill, III, Member
KAECO, LLC
811 Wood Cove Road
Wilmington, NC 28409
Dear Mr. Hill:
The Wilmington Regional Offic
Auto -Shine & Storage on January 28,
application is not complete. The folio,
14-- nael , F. casley, Gcvemo.
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
Wilmington regional Office
March 12, 2002
ubject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 020120
Surf City Auto -Shine & Storage
Pender County
received a Stormwater Management Permit Application for Surf City
D2. A preliminary review of that information has determined that the
na information is needed to continue the stormwater review:
✓1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on the plans that
none exist.
✓2. Please provide a USGS topographic map with the site boundaries accurately located in order to
demonstrate that the site is greater than 1/2 mile from SA waters.
✓3. Please add the symbol fIr the roof drainage to the plan legend.
✓ 4. Please add the name of le nearest town to the vicinity map. How far (in tenth s of a mil e or feet)
down Highway 50 from NC 210 is the project located?
✓ 5. Please report all built-upI n areas in square feet on the application.
,✓ f&. The calculations use the A/DA ratio for th=901/.TSSffiemoval eciency, but the supplement
indicates that 85% is use . Please correct.
✓g7. There will be a lot of fill �aterial brought in for this project. The clearance around the property
is only 10'. In places,-the�elevation difference between proposed and existing is 55. At a 3:1
slope, this will mean at least 16.5' is needed to reach natural ground. Is any type ofretaining wall
planned for those places where more than 10' is needed to slope back to natural ground, or have
the neighbors granted yo" permission to grade over onto their property?
� MR
N.C, Division of Water Quality 127 Cardinal Drive
Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

e
Mr. Hill
March 12, 2002
Stormwater Project No. SW8 020120
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 April 12, 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:IWQSISTORMWATIADDINF0120021020120.MAR
cc: Linda Lewis
John Klein, P.E.
Janet Paith, LQS

,r = 2. If this application is being sub rn:ttvz
d asthe resultof a renewal or modification to an existing permit,Lasttheexisting perinit number f A. _ and its issue date (iF known) N (A_
3. Specify the type of project (check i
Low Density High
4. Additional Project Requirements
_CAMA Major / Sedimer.
Information on required state
1-677-623-6746.
;y Redevelop General Permit Other
applicable blanks):
Erosion Control 404/401 Permit NPDES StormAater
can be obtained by contacting the Customer Service Center at -
1H. PROJECT INFORMATION
1. In the space provided below, surnriarize how stormwater \,,qll be treafed. Aiso attach a detailed narrative
(one to two pages) describing stor } water management for the project.
SZo¢n► w �� 6�2 CM 1, v\A - rZ LEI AN b P To W
's-rCW_"w.4� E'2l
Z. Stormwater runoff from this projec drains to the _ LN r�2h CeA stA�- W^Z'> A-Vt`i River basin.
3. 'Total Project Area: �: (a'3 acres 4. Project wilt Upon Area: %
5. How many drainage areas does the project have?- 1
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
,��.s�r1,I�furn�atxcrt
r t?
� ,iJ airig�Ax
Receiving Stream Name
Receiving Stream Class
I SA
Drainage Area
Existing Impervious' Area
Proposed Impervious*Area
t• L Z A e—
% Impervious' Area (total)
! at.
On -site Buildings
0 3
On -site Streets
On -site Parking
I •C�--+ AL
On -site Sidewalks
Other oIl-site
Off -site
Total 1 • l L AC
Total:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Paze ? of 4

r
Wrightsville Engineering Services
.January 25, 2002
Ms. Linda Lewis
NCDENR, Division of Wate
127 Cardinal Drive Extensii
Wilmington, NC 28405-384
Re: Surf City Auto -Shine
Surf City, Pender Cou
Engineered Stormwat
Dear Ms. Lewis:
On behalf of KAECO, L.L.C.
approval. Enclosed for your
Original and one (1) copy of
Original copy of the Wet Del
Permit application fee in the
Two (2) copies of the Narrat
Two (2) copies of Drawings
We have also included a
and the outlet to the Intrai
Should there be any qu
contact our office.
Sincerely,
WRIGHTSVILLE ENGINE
f KLEIN, PE
Cc: Mr. Ed Hill
Quality
d Storage, U.S. Highway 50
Submittal
File No.: 21013
�A, N 2� 8 2002
please find enclosed submittal for DWQ stormwater
review are:
:he Stormwater Application Form
?ntion Basin Supplement Form
amount of $420
/e which includes Calculations
of the Surf City tax map showing the project site
I Waterway (ICW).
or additional copies desired, please feel free to
SERVICES
3410 Wrightsville Avenue
North Carolina 28403 910.799.7967 Fax [phone]

4 4
r ,
c. F
' • o-r

State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
AE.C-O L• L-C .
2. Print Owner/Signing Official's name and title (person legally responsible for facility, and compliance):
3. Mailing Address for perWn.listed in item 2 above:
Btl Wooe CovF�d,a,c�
City:_ N%-" I a 6mg ti , _.._. State: toc _ Zip: Z 84og
T.,._.
Telephone Number:
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
- <-\m= A-,T-o-St,sta5 AAr> S`rbvch-64
5. Location of Project (street address):
Nu-s 6t G,NBD +•� -t-l�tS �-rME
City: .County: PErxbEj&
6. Directions to project (from nearest major intersection):.
6r`t 0.j , TAW E `lS }�..s `( 1'I 1Z 4,w ;1-Nw 6h57� o.a V 10 � -
-F\1Wr.1 CZ CsE) &- VS 4w-V 1;70 r 7 +*o)eCT LeFT
o � o
� 7. Latitude: t4 3 7.G.S Longitude: W '-r1 ] P 33 -J" of project
8. Contact person who can answer questions about the project:
II.
Name: Telephone Number: (9 to
PERMIT INFORMATION:
1. Specify whether project is (check one):
Modification
New
Renewal
Form SWU-101 Version 3.99
Page I of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number 01A and its issue date (if known) yJ JA' ,
r` +
r
3. Specify the type of project (check one):
Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major Sedimentation/Erosion Control �404/401 Permit NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
Ill. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
— _ �^ro✓tr•.. wh.�-�C _Co\.i..c CT �D V \� 1r.�{�6"Tt /4•NA QI � D To . �W C;?,_ .
2. Stormwater runoff from this project drains to the VN-tvLA r- 04STAt G.1.► t-E7twr4`r River basin.
3. Total Project Area: acres 4. Project Built Upon Area: %
S. How many drainage areas does the project have? .
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basra Irt%rrnatron�
,PX<: +Tc. - l�l:YnS H/Y�..i'n �, `.
E...... ....
°� l rainage Area�1
" ....:r .�..
�Dr"n`a�eArea2"" y
.,. ..... ..�
Receiving Stream Name
1 C�
Receiving Stream Class
S
Drainage Area
o q 7a 5 IP7
Existing Impervious* Area'
0
Pro osed Im ervious*Area
q$ 46-1.1 SIr
% Impervious* Area (total)
", g ©'. _ .
. -
Irri ervious Surface Area
Drainage AriaTAR I
ow
��L?runageA
On -site Buildings
1 �� �SCc SF
On -site Streets
--.
On -site Parking
Z1 SF
On -site Sidewalks
Other on -site
Off -site
Total:
Total:
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of 4

t-lo.v was the off -site impervious area listed above derived? Now _ PE+�v+a���1� `to
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number
_ t3 LA as issued by the Division of Water Quality. These covenants may not be
changed or deleted withour the consent of the State.
2. No more tlran W 11%• _ square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
deck -big or the water surface of swimming pools.
3. Swales shall not be filled in, piped or altered except as necessary to provide drl veway crossings.
4. Built -upon area in excess of the permitted amount requires a state storniwater management permit niodfDcation prior to
construction.
5. All permitted runofffrom outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormvva ter control system shall be performed in a manner that maintains rile integrity
and performance of the system as permitted.
By your signature below. you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under there, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they wM be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted For each
BMP specified far this project. Contact the Stormwater and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement '
Form SWU-104
Low Density Supplement
Form SIAIU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
innovative Best Management Practice Supplement
Form SWU-101 Version 3.99
Page 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
Please indicate that you have provided the foliowirig; required information by initialing in the space provided
next to each item.
I i'
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the. applicable Supplement Form(s) for each BMP
• Permit application processing fee of $420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/rnariagernent
• Two copies of plans and specifications, including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
Original contours, proposed contours, spot elevations, finished floor elevations
Details of roads, drainage features, collection systems, and stornrwater control measures
Wetlands delineated. or a note on plans that none.exist
Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent {individual or firm):_ V.i„t�e•er��,�t� LE _E[aG��eJEt�..)a�ed�c6S
Mailing; Address: 2—AA0 Ay e -
City: _- _- W k%- tA. N ate'►-) State: NC— Zip-. Z 54 's
Phone: (`ZOO ) r(q9 -`7g ("q Fax: ( c(to ) -Ii '6 — C Ssxy)
VM. APPLICANT'S CERTIFICATION
1, {print or type name of person listed in General Information, Item 2) )gE?AOuS P— . A t V 4
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. If
Z
Signature: 9.11 Date: d 2
Form SWU-101 Version 3.99 Page 4 of

0

Permit No. S(A)4? 6 2012D
(to be provided by D WQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
-1. PROJECT INFORMATION
Project Name: .SDK Ai-. S�wu,,- NE
Contact Person: z—y> N4 Phone Number: (R, 0 ZZVv(o__�
For projects with multiple basins, specify which basin this worksheet applies to: N) A
elevations
Basin Bottom Elevation 11• S ft. (floor of the basin)
Permanent Pool Elevation (`l. O ft. (elevation of the orifice)
Temporary Pool Elevation )% • 1 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area__ 357 sq. ft. (water surface area at the orifice elevation)
Drainage Area 1• �3 ac. (on -site and off -site drainage to the basin)
Impervious Area 1 • lZ ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume $`r`7 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 4 A3Z cu. ft. (volume detained above the permanent pool}
Forebay Volume 219 A cu. ft. (approximately 20% of total volume)
Other parameters
SA/DAi 14 �50 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice _ k � 00 in. (2 to 5 day temporary pool draw -down required)
Design Rainfall 1 in.
Design TSS Removal' 90 % (minimum 85% required)
Form SWU-lot Rev 3.99 Page 1 of 4

Rev: 4-Z3-02.
DESIGN NARRATIVE
SEDIMENTATION CONTROL SPECIFICATION
and
DRAINAGE CALCULATIONS
for
Surf Ciy Auto -Shine and Storage
U.S. HIGHWAY 50
PENDER COUNTY, NORTH CAROLINA
PREPARED FOR
KAECO, L.L.C.
811 Wood cover Road
Wilmington, NC 28409
[phone]
January 2002
21013
V IN
�trU9ag6'av59nd
PREPARED BY
RECEIVED
APR 2 4 2002
So
PxoJ # GvZG12o
WRIG]HTSVILLE ENGINEERING SERVICES
3410 Wrightsville Avenue
Wilmington, NC 28403
[phone]

DESIGN NARRATIVE
1. GENERAL:
The purpose of this submittal is to present design of the stormwater management measures for the subject site.
Included within this submittal are the Drawings and Storm Drainage Calculations. All items are part of the
overall plan and included by reference.
This submittal involves the design of a multi -use commercial site for use as a self-service and automatic car wash
as well as a covered boat storage facility. This phase is designed to meet the high -density submittal requirements
of the NCDENR Division of Water Quality.
2. EXISTING SITE:
The existing site is comprised of moderately wooded areas with heavy ground cover. Soils consist of a sandy
loam with loamy topsoil. General drainage patterns are in a north to south direction toward the Intracoastal
Waterway. Downstream waters are classified as SA; however, the distance to the nearest outlet ditch draining to
the waterway is just beyond the '/z mile boundary requirement. A tax map with roadway frontages has been
included as part of this submittal to aid in SA boundary determinations.
3. PROPOSED IMPROVEMENTS:
The project will involve construction of a DWQ stormwater pond capable of handling runoff from the pavement
and building areas of the development. Runoff is to be conveyed via stormwater piping into the pond, with
discharge out of the pond into the roadside ditch system.
The pond shall be constructed with slopes of three (3) horizontal to one (1) vertical. Along the northernmost
boundary, the pond shall have a small retaining wall to assist in meeting adjoining lot grades. The design of this
structure will be by others.
Pavement consists of concrete pavement around the car wash areas; while the boat storage areas shall be
graveled. Due to slopes of the boat storage roofs, the rear portion of the eastern building will be piped via roof
drains into the collection system. Design of the roof drains shall be in accordance with state and local codes.
4. STORM DRAINAGE CALCULATIONS:
Calculations for the project involve determination of the overall built -upon area percentage as well as designing
of the stormwater pond and related piping. Piping has been based on the 10-year storm event while the pond and
outlet piping has been based on a TR-20 modeling of the 10-year, 24-hour storm event.

Page Two
Design Narrative
Surf City Auto -Shine and Storage
Due to the grading activity currently underway within the NCDOT right-of-way for Town of Surf City sanitary
sewer installation, the roadside ditch system has been altered making delineation of the drainage boundary for the
roadway culvert difficult. The runoff appears to sheet flow predominately across the lots along the eastern side of
U.S. 50, with the beginning of a roadside swale upstream of the project site. An estimated 1000 lineal feet of
roadway has been estimated to drain toward our site.
5. EROSION CONTROL CONSIDERATION:
As the majority of the site will be disturbed due to construction activity, close attention to sequencing is needed
by the Contractor. Initial steps are for installation of the construction entrance and installation of silt fencing
along the lower (southern) and front (north) property lines. Construction of the DWQ pond will yield material
which will be used in selected fill areas of the site. Upon construction of the pond, inlets and piping shall be
installed with inlet protection.
The Contractor shall check all erosion control devices after every runoff producing rain as well as weekly.
Repairs to any device shall be made immediately.
Refer to the Technical Specifications for additional requirements.

Sedimentation and Erosion Control
Technical Specification

TECHNICAL SPECIFICATIONS
SECTION 13: ENVIRONMENT PROTECTION: EROSION AND SEDIMENT
CONTROL, AND WATER QUALITY PROTECTION
T-13.01 GENERAL:
The Contractor shall maintain all
boundaries free from environmental
Federal, State or local regulations.
work areas within and outside the project
pollution which would be in violation of any
T-13.02 ERQSION AND SEDIMENT CONTROL:
All work shall comply with the regulations of the North Carolina Sedimentation
Control Act of 1973.
T-13-02.1 DISTURBED AREAS:
No disturbed area shall be denuded for more than 30 calendar days unless it is under
continuing active construction. Grade slopes shall be stabilized within fifteen (15)
days unless under continuing active construction.
T-13.02,2 AREAS UNDER ACTIVE CONSTRUCTION:
All erosion control devices shall be installed and maintained as required by the North
Carolina Department of Environment,. Health, and Natural Resources. Such
measures may consist of berms, dikes, drains, and sediment basins, or use of fiber
mats, woven plastic filter cloths, gravel, mulches, bituminous spray, and other
erosion control devices or methods. Refer to drawings for minimum requirements
for erosion and sediment control devices.
T-13.02.3 FERTILIZING AND SEEDING: Refer to drawings
T-13.02.4 SILT FENCE:
Silt fence shall be used as a permeable barrier that retains sediment on the
construction site. Use a synthetic filter fabric which is certified by the manufacturer
or supplier conforming to the following requirements:
Filtering efficiency - 85% minimum
Tensile Strength of 20% maximum elongation 30 lbs/lin in (min)
Slurry Flow Rate - 0.3 gal/sq ft/min
Installation and maintenance shall be by the manufacturers' recommendations.
Materials shall meet the requirements of the North Carolina Department of
Transportation.
T-13.03 AIR AND WATER QUALITY PROTECTION:
T-13.03.1 PROTECTION OF AIR OUALITY:
The air pollution likely to occur due to construction operations shall be minimized by
wetting down bare soils during windy periods, requiring the use of properly operating
combustion emission control devices on construction vehicles and equipment used by
contractors, and by encouraging the shutdown of motorized equipment not actually in
use. Trash burning will not be permitted on the construction site.
T-13-1

T-13.03.2 PROTECTION OF WATER QUALITY:
The Contractor shall observe the rules and regulations of the State of North Carolina
and agencies of the United States Government prohibiting the pollution of stream or
river waters by the dumping of any refuse, rubbish or debris therein.
T-13-2

DRAINAGE CALCULATIONS
DWQ Stormwater Pond
Onsite Piping Design
Pond Outlet Routing
Appendix

WRIGHTSVILLE ENGINEERING SERVICES
PROJECT: Surf City Auto -Shine and Storage PROJECT NO.: 21013
CLIENT: KAECO, L.L.C. DATE: January 2002 (Rev 4-02)
LOCATION: Pender County, NC PREPARED BY: JKK
SUBJECT: Stormwater Calculations
GIVEN: Design for detention pond drainage basin including future development areas.
Runoff Coefficients used for Design:
Preconstruction (undeveloped) _
Impervious =
Turf (developed) _
TOTAL POND DRAINAGE AREA =
Design Storm Events:
Return Time of Rainfall
Period Concentr. Intensity
(YR) (min) (inlhr)
10 5 7.23
10 15 5.45
25 5 8.15
SOLUTION:
1. Summary of Built -Upon Areas into Pond:
Pavement -
Buildings -
Total Built -Upon Area =
Turf:
Percent Built -Upon: = 1.122 Ac
68.9 %
0.30
0.95
0.20
70978 SF = 1.629 Ac
34721 SF = 0.80 Acres
14156 SF = 0.32 Acres
48877 SF - 1.122 Acres
22101 SF = 0.507 Acres
1.629 Ac =
use: 70 %
2. RATIONAL METHOD RUNOFF COEFFICIENTS FOR PIPING:
Impervious = 1.12 Ac x 0.95 = 1.07
Turf = 0.51 Ac x 0.20 - 0.10
1.63 1.17
Weighted C Factor = 0.72 use: 0.75
3. STORM DRAINAGE DESIGN:
Refer to StormCad design data for piping
4. DETENTION POND DESIGN:
Design to store the first 1-inch of runoff from project area
Imperv. 1.00 x 48877 SF x 1712" = ' 4073 CF
Turf 0.20 x 22101 SF x 1712" = 368 CF
4441 CF
Based on state requirements for ponds without vegetative filter
and using the design impervious percent of 70 with a depth of 5.5
feet, the ratio of surface area (SF) to drainage area to drainage area (DA) = 4.50
22013 - Surf City Auto -Shine and Storage (Revision 4-23-02)

WRIGHTSVILLE ENGINEERING SERVICES
Therefore, required pond surface area (SA) is:
4.50 x 1.63
1100 =
0.07 Acres
=
3194 SF
AVE.
CUMUL.
AREA AREA VOLUME
VOLUME
ELEV. JLFJ [S j LC1_j,
u
11.5 77
(Pond Design Bottom)
142 71
12.0 206
0
374 374
13.0 542
0
766 766
14.0 990
0
1263 1263
15.0 1535
0
1854 1854
16.0 2172
0
2874 2874
17.0 3575
0 (Permanent Pool Elevation)
3968 3968
18.0 4361
3968
4639 4639
19.0 4916
8607
Depth where storage requirement met:
18.10
Depth of Required Storage:
1.10 VF
or 13.2 Inches
Elevation of Top of Riser:
18.10
Depth of Storage Provided:
1.10 VF
or 13.2 Inches
Volume of Storage Provided:
4432 CF
5. DWQ ORIFICE DESIGN:
Design orifice for discharge allowed using the following equation
Q= C x A x (2gh)^0.5 where:
Q = CFS
C = Orifice coefficient =
0.6
A = Orifice Area (SF)
g = 32.2 ft/s2
h = pressure head (ft)
Rearranging the above equation for A yields:
A=QICx(2gh)^0.5
Design parameters:
Pond Outlet Invert =
17.00
Design storage level =
18.10
Average Pond Elevation =
17.55
Trial Orfice Design =
1.250 "
Orifice Centerline =
17.1
Ave Pressure Head (h) =
0,50
Pond Volume: 4432 CF
4432 CF
22013 - Surf City Auto -Shine and Storage (Revision 4-23-02)

WRIGHTSVILLE ENGINEERING SERVICES
Time to Drain: 2 Days 5 Days
Release Rate: 0.026 CFS 0.010 CFS
Orifice Area: 0.0075 SF 0.0014 SF
Orifice Diameter: 0.098 ' 0.043 '
1.18 " 0.52 "
USE FOR DESIGN: 1.0 "
Actual Draw -Down Rate = 0.019 CFS
Actual Ave Draw -down time = 66.4 Hours
S. Forebay Design Requirements:
Design forebay for 20 % of the total volume below permanent pool.
Note: below areas take into consideration volume loss due to forebay separation berm.
FOREBAY VOLUME MAIN POND VOLUME
AVE. CUMUL. AVE. CUMUL.
AREA AREA VOLUME VOLUME AREA AREA VOLUME VOLUME
ELEV. (SF) (SF) (CF) (CF) (SF) (SF) (CF) (CF)
11.5 0 0 77 0
0 0 142 71
12 0 0 206 71
18 18 357 357
13 35 18 507 427
92 92 675 675
14 148 109 842 1102
237 328 1026 1701
15 325 437 1210 2802
442 770 1412 3113
16 558 1207 1614 5915
818 1588 2056 5168
17 1078 2794 2497 11083
2794' 11083
Total Volume Below Normal Pool Elevation = 13877
Percent Forebay vs Total Volume = 20.1 %
7. Forebay Weir Design (10-year peak flow rate)
weir equation: Q = C x H"3/2 x (L - 0.2H) where:
Q = CFS
C = weir coefficient = 3.33
L = weir lenfth (FT) = 2 x H (min)
H = head (FT)
rearranging and solving for weir length yields the following:
L=(Q/CxHA3/2)+0.2H
Forebay Flow Rate: (10-year design) refer to Hydraflow piping calcs
Q = 6.65 CFS
Set invert at normal pool elevation = 17.00
22013 - Surf City Auto -Shine and Storage (Revision 4-23-02)

WRIGHTSVILLE ENGINEERING SERVICES
Design weir capacity = 6.7 CFS
Design weir depth = 6 " - 0.50 FT
Therefore, required weir length = 5.75 FT use: 6 FT
b. Pond Emergency Overflow (use 25-year storm) (see HydroCAD pond calcs)
Outflow (0) = 7.51 CFS
Design weir depth = 6 " W 0.5 FT
Therefore, required weir length = 6.32 FT use: 8 FT
Use: invert of weir = 18.50 With a minimum top of pond
elevation of 19.00
8. Pond Outlet Pipe Design (routed 10-year storm, TR-20 Analysis with HydrdoCAD)
from HydroCAD 8.3 CFS
18" Dia CMP, n = 0.021, design slope = 1.88 %
9. Summary:
Storage Volume Provided =
Pond Outlet Invert =
Design Storage Elevation =
Pond Bottom Elevation =
Outlet Orifice Diameter =
Ave Discharge Rate
Anticipated drawdown time =
4432 CF
17.00
18.10 Depth = 1.10 VF
11.50
1.00 "
0.019 CFS
66.4 Hours = 2.8 Days
10. Rip -Rap Outlet Calculations:
Refer to Figure 8.06.b.1 and 8.06.b.2 for rip rap design charts
Pond Inlet:
Q(10) Peak Flow Rate =
6.65 CFS (see Hydraflow Calcs)
Dia =
18 inches
Velocity =
3.8 Ft/sec
From Figure 8.06.b.1, case falls within Zone 1
Therefore, apron length = 4 x D =
6 FT using Class A rip -rap
Entrance Culvert (Item 3R, Upper Culvert)
Q(10) Peak Flow Rate =
T2 CFS (see HydroCAD Calcs)
Dia =
18 inches
Velocity =
15.0 Ft/sec
From Figure 8.06.b.1, case falls within Zone 2
Therefore, apron length = 3 x D =
4.5 FT using Class B rip -rap
Entrance Culvert (Item 2R, Roadway Culvert)
0(10) Peak Flow Rate = 14.5 CFS (see HydroCAD Calcs)
Dia = 30 inches
Velocity = 4.8 Ft/sec
From Figure 8.06.b_1, case falls within Zone 2
Therefore, apron length = 4 x D = 10 FT using Class B rip -rap
22013 - Surf City Auto -Shine and Storage (Revision 4-23-02)

...- ..�,-�:�� � 1 :='�_;=�f�' r•h_ Dt� IFS ��IIF�.:;
1-4` F . 2
85% TSS REMOVAL
30 FOOT VEGETATED FILTER REQUMED
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90% TSS REMOVAL
NO VEGETATED FIB, TER REQUMD
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DEPTH
3'
3.5'
4.0'
4.5'
5.0'
5.5'
6.0'
6.5'
7.0'
7.5'
mp %
10%
1.3
1.0
.8
.7
.6
.5
.4
.3
.2
.1
20,70 12.4
2.0
1.8
1.7
1.5
1.4
1.2
1.0
.9
.6
30 %
3-5
3.0
2.7
2.5
2.2
1.9
1,6
1.3
1,1
.8
40 %
4.5
4.0
3,5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
50%
5.6
5.0
4.3
3.9
3.5
3.1
2.7
12.3
1.9
1.5
607o
1 7,0
6.0
5.3
4.8
4.3
3,9
3.4
2.9
2.4
1.9
70 %
8.1
7.0
6.0
5.5
5,0
4.5
3.9
3.4
2.9
2.3
8070
9.4
8.0
7.0
6.4
5.7
5.2
4.6
4.0
3.4
2.8
90%
1 10.7
9.0
7.9
1 7.2
1 6.5
1 5.9
1 5.2
4.6
1 3.9
3.3
100%
12.0
10.0 1-8.8
&1
7.3
6.6
5.8
5.1
4.3
3.6

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Hydraflow Summary Report
Page 1
Line
Line ID
Flow
Line
Line
Invert
fnvert
Line
HGL
HGL
Minor
Dns
No.
rate
size
length
EL Dn
EL Up
slope
down
up
loss
line
(cis)
(in)
(ft)
(ft)
(ft)
(°!°)
(ft)
(ft)
Ett?
No.
1
FES to MH
6.65
18 c
28.0
14.00
14.31
1.107
17.00-
' 17.11.
0.22
End
2
MH to 63
4.98
15 c
52.0
14.30
14.60
0.577
17.33`
17.64'
0.26
1
3
CB1 to C132
2.41
15 c
98.0
14.60
15.80
1.224
17.90`
18.25'
0.06
2
4
CB2 to CB3
1.30
15 c
132.0
15.80
16.20
0.303
18.31'
18.45`
0.02
3
5
CB4 to MH
1.73
12 c
112.0
15.90
16.20
0.268
17,33"
17.60'
0.08
1
Project Fite: Piping.stm
I-D-F File: Wi1m.IDF
Total No, Lines: 5
Run Date: 04-23-2002
NOTES: c = circular; e = elliptical; b = box; Return period = 10 Yrs.; " Indicates surcharge condition.

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Hydraflow Summary Report
Page 1
Line
Line ID
Flow
Line
Line
Invert
invert
Lino
HGL
HGL
Minor
Dns
No.
rate
size
length
FL Dn
EL Up
slope
down
up
loss
line
(cfs)
(in)
(tt)
(ft)
00
{°/o}
(R)
(ft)
(ft)
No.
1
FES to MH
7.51
18 c
28.0
14.00
14.31
1.107
17.00'
17.14`
0.28
End
2
MH to CB
5.63
15 c
52.0
14.30
14.60
0.577
17.42'
17.82"
0.33
1
3
CB1 to Cat
2.72
15 c
98.0
14.60
15.80
1.224
18.15'
18.60'
0.08
2
4
CB2 to CB3
1.47
15 c
132.0
15.80
16.20
0.303
18.67'
18.85'
0.02
3
5
C84 to MH
1.96
12 c
112.0
15.90
16.20
0.268
17.42'
17.76'
0.10
1
V5
pnt-
INLE
��
T
SlZ
EM
YLC�E
G`�
to
A`� w
E
Project File: Pipingstm
I-D-F Fiie: Wilm.IDF
Total No. Lines: 5
lRun Date: 04-23-2002
NOTES: c = circular; e = elliptical: b = box; Return period = 25 Yrs.; " Indicates surcharge condition.

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/SubCBt IRe2Chl On Drainage Diagram for rou#ing2
Link Prepared by Wrightsville Engineering Services V24102
HydroCADS 6.00 s!n 001707 C) 1986-2001 Applied Worocomputer Systems

routing2 Type 11124-hr Rainfall=7.00"
Prepared by Wrightsville Engineering Services Page 1
HydroCADO 6.00 s/n 001707 O 1986-2001 Applied Microcomputer Systems - 4/23/02
Time span=5.00-20.00 hrs, dt=0.01 hrs, 1501 points
Runoff by SCS TR-20 method, UH=SCS, Type III 24-hr Rainfall=7.00"
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Subcatchment 1S: Drainage Area
Tc=5.9 min CN=80 Area=70,978 sf Runof-8.92 cfs 0.599 of
Subcatchment 2S: Roadway Drainage Basin
Tc=5.0 min CN=83 Area=1.200 ac Runoff= 7.19 cfs 0.474 of
Reach 1 R: Pond Outlet Pipe Inflow-- 8.07 cfs 0.495 of
Length= 32.0' Max Vel= 5.7 fps Capacity= 8.90 cfs Outflow-- 8.06 cfs 0.495 of
Reach 2R: Roadway culvert Inflow- 14,50 cfs 0,968 of
Length= 54.0' Max Vel= 4.8 fps Capacity= 21.85 cfs Outflow-- 14.48 cfs 0.968 of
Reach 3R: upper culvert Inflow-- 7.19 cfs 0.474 of
Length= 8.0' Max Vel= 14.9 fps Capacity= 32.92 cfs Outflow-- 7.19 cfs 0.474 of
Pond 1P: DWQ Pond Peak Storage= 6,252 cf Inflow-- 8.92 cfs 0.599 of
Primary= 8.07 cfs 0.495 of Outflow-- 8.07 cfs 0.495 of
Runoff Area = 2.829 ac Volume = 1.073 of Average Depth = 4.55"

routing2 Type H/ 24-hr Rainfall=7.00"
Prepared by Wrightsville Engineering Services Page 2
HydroCADO 6.00 s/n 001707 01986-2001 Applied Microcomputer Systems 4/23/02
Subcatchment 1S: Drainage Area
Runoff = 8.92 cfs @ 12.08 hrs, Volume= 0,599 of
Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Type III 24-hr Rainfall=7.00"
Area (sf) CN Description
22,101 39 >75% Grass cover, Good, HSG A
48,877 98 Paved roads wlcurbs & sewers
70,978 80 Weighted Average
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft} fUsec) (cfs)
5.9 Direct Entry, Direct Entry (see pipe caics)
Subcatchment 1S: Drainage Area
Hydrograph Plot
•
j i t i i i "r i t i � '
7}___...._.__
r
i i i
1
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j
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Time (hours)
— Runoff

routing2 Type 11124-hr Rainfall= 7, OT
Prepared by Wrightsville Engineering Services page 3
HydroCAD® 6.00 sln 001707_01986-2001 Applied Microcomputer Systems _ 4/23102
Subcatchment 2S: Roadway Drainage Basin
Runoff - 7.19 efs @ 12.07 hrs, Volume= 0.474 of
Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
'Type [If 24-hr Rainfall=7.00"
Area ac CN Description
1.200 83 Paved roads w/open ditches, HSG A
Te Length Slope Velocity Capacity Description
{min) (feet) (i t) _ (ft/sec) (cfs) -
5.0 Direct Entry, Right of way flow
Subcatchment 2S: Roadway Drainage Basin
Hydrograph Plot
- - ---- ---------
i I
7.. ...............�....._. ...
.........i .-...... _ .._--.-. -.---- - ...._
djI l
t i I.
1
i
1 I I
............. ------ -._------ _.
1 I
. f
3 ._.... _r ....._..- jr ...._....... _._.
2_ ........... __`._._._—_-..3.. I_._.__..... E........ ..... L.... _...... .......... j..__ —._ z i............... '__._._.-_
i
i
— i !
t t i ,
i
Time (hours)
— Runoff

routing2 Type 11124-hrRalnfall=7.00"
Prepared by Wrightsville Engineering Services Page 4
HVdroCADO 6.00 s1n 001707 0 1986-2001 Applied Microcomputer Systems 4/23/02
Reach 1 R: Pond Outlet Pipe
Inflow = 8.07 cfs @ 12.12 hrs, Volume= 0.495 of
Outflow = 8.06 cfs @ 12.13 hrs, Volume= 0.495 af, Atten= 0%, Lag= 0.2 min
Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Max. Velocity-- 5.7 fps, Min. Travel Time= 0.1 min
Avg. Velocity = 1.9 fps, Avg. Travel Time= 0.3 min
Peak Depth= 1.12'
Capacity at bank full= 8.90 cfs
Inlet Invert= 17.00', Outlet Invert= 16.40'
18.0" Diameter Pipe n= 0.021 Length= 32.0' Slope= 0.0188 7
Reach 1R: Pond Outlet Pipe
Hydrograph Plot
E E f r E E i
7 - --- __._.t_.-_......._.
• I
I 6 � i y
_._.__......... _...._ _.... _... ` ..............
i
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` s r ,
Et ' ---------------- -- _ _._._._._ _ _._....___ _ _.__.._.__ _._._._ _
.-._......_._....._...._._....,-i....._.._................._i.._.-..,_.,__i....,_....__._. i-._._...__._.---- --- i._..._.-._._-i............... i-------- ._.__k-__.____
i
1 r I I I
i I I V 1
---- ----
I E
I
• E y � ....E .._...... ',
E
fl
Time (hours)
— inflow
OutfioW

routing2 Type U124-hrRainfalh7.00"
Prepared by Wrightsville Engineering Services Page 5
HydraCAD@ 6.00_ s/n 001707 01986-2001 Applied Microcomputer Systems 4/23/02
Reach 1R: Pond Outlet Pipe
Stage -Discharge
i
I i
I f I j
I, l
I I
I I I h I
i
!
I!
t
,ii I 1 1
f I j j i
1 i '
I I 5 ! 1 I 1
j 4 1 v
i I
! I I I ! E 1
! � i
0•
0 1 2 3 4 5 6 7 8 9
Discharge Ids)
Reach 1R: Pond Outlet Pipe
Stage -Storage
I
1
I I i
I
{
!
f I
{
1
?
I
31
i
I
f
__
4
!
1
E
4
I
I
1
1
j
I
!
0
5
10
15 20 25
30
35
44
45
50
55
Storage (cubic -feet)
— Primary
— Storage

routin62 Type /it 24-hr Rainfall= 7. 00 "
Prepared by Wrightsville Engineering Services Page 6
HydroCADO 6.00 s!n 001707 01986-2001 Applied Microcomputer Systems 4/23/02
Reach 2R: Roadway culvert
Inflow - 14.50 cfs @ 12.10 hrs, Volume= 0,968 of
Outflow = 14.48 cfs @ 12.10 hrs, Volume= 0,968 af, Atten= 0%, Lag= 0.3 min
Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Max. Velocity= 4.8 fps, Min. Travel Time= 0.2 min
Avg. Velocity = 1.7 fps, Avg. Travel Time= 0.5 min
Peak Depth= 1.49'
Capacity at bank full= 21.85 cfs
inlet Invert= 16.40', Outlet Invert= 16.00'
30.0" Diameter Pipe n= 0.021 Length= 54.0' Slope= 0.00747
Reach 2R: Roadway culvert
Hydrograph Plot
16------- -- ----- < - ... _ :....... ....... :. -----' -'-'-. ; ...........
i
15-'
i `i i 4 iE I
14 8 cfs,
i
14 . ---- '-F ----..�.....---•- x........ .....--'-......-+ -' -_. I -i ....... _ _ ....` .. ....
E
12-1'- i j
10,
i i i 3 i tl
8
_' . . f_
,
------ —............... ---------
I
I I i
i
_.-.__._........_..__....__._._...__..__......_....----------..._.._.._...._.._
I . .................. �...._ 1. _... _.... ..1._ --�'---'-'---" E i
_....._.....:._._.__._._.w..................:............... I .. _ _------- ---._... ' - -_-- -_._._._._._--._._..._ - ..............
-_--'---�---'_--'_
1- ,._..._.__. i
//���
y"'
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Time (hours)
Inflow
Oulflow

routing2 Type III 24-hr Rainfall= 7. 00"
Prepared by Wrightsville Engineering Services Page 7
H droCAD® 6.00 s/n 001707 c0 1986-2001 Applied Microcomputer Systems 4/23/02
Reach 2R: Roadway culvert
Stage -Discharge
2
0
— Primary
I I
4 6 8 10 12 14 16 18 20 22
Discharge {cis}
Reach 2R: Roadway culvert
Stage -Storage
— Storage
go
0 50 100 150 200 250
Storage (cubic -feet)

routing2 Type Ill 24-hr Rainfall= 7. 00 "
Prepared by Wrightsville Engineering Services Page 8
HydroCADO 6.00 sin 001707 ©1986-2001 Applied Microcomputer Systems 4/23102
Reach 3R: upper culvert
Inflow — 7.19 cfs @ 12.07 hrs, Volume= 0.474 of
Outflow = 7.19 cfs @ 12.07 hrs, Volume= 0,474 af, Atten= 0%, Lag= 0.0 min
Routing by Stor-Ind+Trans method, Time Span= 5.00-20,00 hrs, dt= 0.01 hrs
Max. Velocity-- 14.9 fps, Min. Travel Time= 0.0 min
Avg. Velocity = 5.2 fps, Avg. Travel Time= 0.0 min
Peak Depth= 0.48'
Capacity at bank full= 32.92 cfs
inlet Invert= 18.45', Outlet Invert= 16.40'
18.0" Diameter Pipe n= 0.021 Length= 8.0' Slope= 0.2563 T
Reach 3R: upper culvert
Hydrograph Plot
8
7
6
5
w
c+,
4
3
2
1
0
--- - ..... ...... .............. -- -
II
i I i i ; � i i I I
---- ---- ---- - --; ; i i
j l I I j
i I t
---- -------- -'f._..__.__._j-....... ......... k—'-_............. .._......i..._�_._......_.__......._..._.I........_._..,._..;� ............._.-...,.......i....,.,._._.-._..}.. _.�....,.__ _,_...._._ _ ..........
i
I ' , E ' -
i
, l
I i '
I I I j 1 I _..I ...
i I j € '
l , l i 4
i
' I
,
! ;� �
I
i I
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Time (hours)
Linflow
Outflow

routing2 Type I// 24-hr Rainfall= 7. 00 "
Prepared by Wrightsville Engineering Services Page 9
HydroCADO 6,00 sIn 001707 Q 1986-2001 Applied Microcomputer Systems 4/23102
Reach 3R: upper culvert
Stage -Discharge
do
0
0 5 10 15 20 25 30 35
Discharge (cfs)
Reach 3R: upper culvert
Stage -Storage
i P
........... ... . . . . . . . . . .
f
..............
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Storage (cubic -feet)
— Storage

routing2 Type 11124-hr Rainfall= 7. 00 "
Prepared by Wrightsville Engineering Services Page 10
HydroCADO 6.00 sln 001707 © 1986-2001_ Applied Microcomputer Systems 4/23/02 , .
Pond 1 P: DWQ Pond
Inflow =
8.92 cfs @ 12.08 hrs, Volume= 0.599 of
Outflow =
8.07 cfs @ 12.12 hrs, Volume= 0.495 af, Atten= 10%, Lag= 2.3 min
Primary =
8.07 cfs @ 12.12 hrs, Volume= 0.495 of
Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Peak Elev= 18.49'
Storage= 6,252 cf
Plug -Flow detention
time= 81.3 min calculated for 0.494 of (83% of inflow)
Storage and wetted areas determined by Prismatic sections
Elevation
Surf.Area Inc.Store Cum -Store
(feet
(sq-ft) (cubic -feet) cubic-fee!)
17.00
3,575 0 0
18.00
4,361 3,968 3,968
19.00
4,916 4,639 8,607
Primary OutFlow
{Free Discharge}
1=Orifice/Grate
T__2=06fice/Grate
# Routina
Invert Outlet Devices
1, Primary 18.10' 3.00' x 2.00' Horiz. Orifice/Grate Limited to weir flow C= 0.600
2 Primary 17.00' 1.0" Vert. Orifice/Grate C= 0.600
Pond 1 P: DWQ Pond
Hydrograph Plot
_!___
8.92'cfs
Time (hours)
Inflow
Primary

routing2 Type /// 24-hr Rainfall=7. 00"
Prepared by Wrightsville Engineering Services Page 11
HvdroCADO 6.00 sIn 001707 0 1986-2001 Applied Microcomputer Systems 4/23/02
LIJ
0
w
Pond I P: DWQ Pond
Stage -Discharge
ra e
2 4 6 8 10 12 14 16 18 20 22 24 26
Discharge (cfs)
Pond IP: DWQ Pond
Stage -Area -Storage
SurfamIkketted Area fsq-ft)
0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500
. .. - ---------- . ..........
---- ----------- ----
0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000
Storage (cubic -feet)
F--Primary
9
Surface
Storage

Appendices
r-
ti b
L.
1
f$�?
CO
Ln
UM
Q31
Ln
13L a yLn
a } Il'
CO
LL
o �LAf k = a7�� Ig�• 1
a0 �.�.f o , rc w�a�r• tI1
Ln
�♦ n Y ' T�
CN
.8
1
Y CO
Figure 8.03J 10-year 1 day precipitation (inches)
u 1
v1 ^ C a,
V
1 `a
2AZII

co ao
0.
a
L
10
a
OC
N
o
Mqure 8.03k 26-year i day proophaWn Mchos)
8.©3.14
.o r
0o

CHART &5
Depth - Duration - Frequency Table
Lorstian: Wilmington, NC
Return Period
oration
2-yr
5-yr
10-yr
25-yr
50-yr
100-yr
_
[m]
[in]
(m)
[in]
rm]
rill]
5 coin
0.49
0.55
0.60
0.68
0.74
0.80
10 min
0.84
0.96
1.05
1.19
1.30
1.41
15 mitt
1.09
1.24
1.36
1.54
1.69
1.83
30 mitt
1.59
1.90
2.12
2.46
2.72
2.98
60 min
2.10
2.58
2.92
3.41
3.80
4.18
2 hr
2.36
293
3.34
3.92
4.37
4.82
3 6r
2.63
3.24
3.76
4.42
4.94
5.46
6 hr
3.30
4.20
4.82
5.71
6.40
7.09
12 hr
3.90
5.00
5.77
6.86
7.70
8.55
24 hr
4.50
5.91
6.72
9.01
9.01
10.00
CHART "
Intensity - Duration - Frequency Table
Location: Wilmington, NC
Retum Period
Duraticn
2-yr
5-yr
10-yr
25-yr
50-yr
100-yr
ialttr
i/hr
inThr
inlhr
uAr
in/hr
5 min
5.88
6.63
713
9.15
9.97
9.60
10 t '
5.06
5.76
6.30
7.13
7.79
9.45
15 min
4.36
4.97
5.45
6.17
6.75
7.32
30 min
3.17
3.79
4.25
4.92
5.44
5.96
60 train
2.10
2.58
2.92
3.41
3.90
-4.18
2 hr
1.19
1.47
1.67
1.96
2.19
2.41
3 hr
0.89
1.I0
1.25
1.47
1.65
1.82
6 hr
0.55
0.70
0.80
0.95
1.07
1.18
12 hr
0.33
0.42
0.49
0.57
- 0.64
0.71
24 hr
0.19
0.24
0.28
0.33
038
0.42
*Source: Master Drainage Improvemew and 5tonnwater Management Plan, Vol. 1, McKim &
Creed, June 1988
5-15

Table S.F-I Value of Runoff Coelfflelent (C) for Rational Formula
Land Use C Vidue I Land Use evaluo
Buskwm--
Downtown areas ..... .................................. 0.70-0.95
Neighborhood areas .............................. 0,50-0.70
RusWentlat
SingWfamily arms .................................... 0.140-0-50
Multi units, detached ............................ 0,40-0-60
Multi units, attached .............................. 0.60-0.75
SLftrban ............................................... 0.25-0.40
Industrial:
Ught areas .................................................. O.W-0.80
Heavy areas ........................................... OAD-0.90
Parks, cemeteries....................................... 0.10-0.26
Playgrounds ............................................... 02".35
Railroad yard atom ................................... ; 0.20 .40
UnImproved areas . .................................... 0.1".30
streets; N
Asphalt ................................................... 0.70-0.96
C*rIcreW ................................... ............ OAD-0.95
Brick ....................................................... 0I0-0.65
Drives and waft ........................................ 0.75-0.85
Roots ......................................................... 0,75-0.95
Lawns:
Sandy soil: tat 2% ................................
0.05-0.10
Sandy 8011i ave.. 2.7% ...........................
0,10-0.15
Sandy sail, st"p. 7% ............................
0,16-0.20
H" soli, fiat, 2% ................................
0,13-0.17
Heavy soil, eye., 2.7% ...........................
0.164.22
He" sail, ztmp, 7% ............................
0.25-0.35
Agriculural land:
ftm packed sail
Smooth ..............................................
0.30-0.60
Rough ................................................
0.20-0M
Cultivated rom
Heavy soil no crop .............................
0.30-0.60
MqaWSoil with crop .... . ............. I ... —
020`0.W
Sandy 9M no crop.............................
O-MOAO
Sandy sail with crop ..........................
0.10-0.25
PaWe
Heald soil ..........................................
0.15-0.45
Sandy sal .............. ...... ..............
0.139-0.25
woodWxft :........... . ....... . ....................
0.0S-025
NOTE: The de&)Ww must use WqmeMIos9Wthe appropriate C value wftInthe range Ior6*apWVprWftrang use. Generally.
larger areas *M pemumble soft, flat sbpas. and dense vogeWw shoOd have lerraoet C VWLWL Smaller am" with staNty
permeable soft, steep slopes, and 9Ww vegetation shmid be assigned highest 0 vakm*.
5w=:Arnvk= 3v*qgIC4YDEr4rwvm
5.42

ESTIMATION OF STONE SIZE AND DIMENSIONS FOR
CUt VFRT APRONS
Slop 1) Compute Ilm velocity Vo at culvert or pavd Channel OtMICL
Scar 2) For pipe culvens Do is liiamcicr.
Fur pipe arch, arch and box culverts, and paved channel outlets,
Dv -Au, whom A.- crew-smional arcu of flow at ourlcr.
Formuldple culverts, use Do=1.250,, of single culvert.
Stop 3) For apron Smiles of 10% or sts W. use recommendations
Far next higher zone. (Zones I tlwugh 6).
a
W
S 10' is, 20' 25'
DIAMETER (Ft.)
Figure 8.06b-1
Al<Rt7fl TJ{I�IF3tlAE l PWW alums
�. 0
,o PmEwr acoua
nOLr UWc *MW&*M
tl
1
. ... ..
STONE FILLING (FINE) 3 K OP
4
2
STONE FILLING (LIGHT) CL. 8 3 K N
6 K D+
3
STONE FILLING (MEDIUM) CL 1 4 % D*
a x D+
4
STONE FILLING (HEAVY) CL, 1 4 r Do
9 x Do
S
STONE FILLING (HEAVY) CL. 2 S z Da
10 R D+
6
STONE FILLING MEAVY) CL. 2 n x Do
10 x Da
T SPECIAL STUDY REQUIRED (ENERGY DISSCRATORS, STILLING
BASIN OR LARGER SIZE STONE).
Fig. 8M.b.2
Widdt — 3 shoe,+ pipe dhL (men.)