SW8990839_HISTORICAL FILE_20000113

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO
SW8 0I`l1083°I
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2000 01 1 3
YYYYMMDD

SOta of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B Hunt, Jr, Governor
Bill Holman, Secretary
Division of Water Quality
Mr Terry Quinn, President
Big Toys Storage, Inc
1985 Eastwood Road
Wilmington, NC 28403
Dear Mr Quinn
1�
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
January 13, 2000
Subject Permit No SW8 990839
Big Toys Storage
High Density Stormwater Project
Brunswick County
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Big Toys
Storage on December 10, 1999 Staff review of the plans and specifications has determined that the project, as
proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding
Permit No SW8 990839 dated January 13, 2000, for the construction of Big Toys Storage
This permit shall be effective from the date of issuance until January 13, 2010, and shall be subject to the conditions
and limitations as specified therein Please pay special attention to the Operation and Maintenance requirements
inthis permit Failure to establish an adequate system for operation and maintenance of the stormwater management
system will result in future compliance problems
If any parts, requirements or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days following receipt of this permit This request must
be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands
are made this permit shall be final and binding
If you have any questions or need additional information concerning this matter, please contact Linda Lewis, or
me at [phone]
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl S \WQS\STORMWAT\PERMIT\990839 JAN
cc Phil Tripp P E
Delaney Aycock, Brunswick County Inspections
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr Ext , Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

�e State Stormwater Management Systems
Permit No SW8990839
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 ofNorth Carolina as amended, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Big Toys Storage, Inc
Big Toys Storage
Brunswick County
FOR THE
construction, operation and maintenance of an infiltration basin in compliance with the provisions of 15A NCAC
2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water Quality
and considered a part of this permit
This permit shall be effective from the date of issuance until January 13, 2010 and shall be subject to the following
specified conditions and limitations
I DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described in the
application and other supporting data
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
308,190 square feet of impervious area This basin must be operated with a 50' vegetated filter
Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit
The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per
approved plans

State Stormwater Management Systems
Permit No SW8 990839
Project Name
Permit Number
Location
Applicant
Mailing Address
Application Date
Name of Receiving Stream/Index #
Classification of Water Body
Design Storm, inches
Basin Depth, feet
Bottom Elevation, FMSL
Drainage Area, acres
Total Impervious Surfaces, ft2
Offsite Area entering Pond, ft2
Required Storage Volume, ft3
Provided Storage Volume, ft3
Temporary Storage Elevation, FMSL
Type of Soil
Seasonal High Water Table Elevation
Expected Infiltration Rate
Time to Drawdown
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Big Toys Storage
SW8 990839
Brunswick County
Mr Terry Quinn, President
Big Toys Storage, Inc
1985 Eastwood Road
Wilmington, NC 28403
December 10, 1999
UT Dutchman Creek Outlet Channel / (CFR 18-88-9-3-3)
"SA"
15
3
8
9 17
308,190
n/a
37,211
46,406
11
Sand
6 FMSL
9" per hour
4 hours
3

State Stormwater Management Systems
Permit No SW8990839
II. SCHEDULE OF COMPLIANCE
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 except roads
During construction, erosion shall be kept to a mimmum and any eroded areas of the system will be repaired
immediately
The pemuttee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency The approved Operation and Maintenance Plan must
be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited
to
a Semiannual scheduled inspections (every 6 months)
b Sediment removal
c Mowing and revegetation of side slopes
d Immediate repair of eroded areas
e Maintenance of side slopes in accordance with approved plans and specifications
f Debris removal and unclogging of outlet structure, onfice device and catch basins and piping
g Access to the outlet structure must be available at all times
h The vegetated filter will be kept grassed with no erosion The spreader mechanism will be kept free
of sediment and trash, and must distribute the runoff evenly over the width of the filter
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
Decorative spray fountains will not be allowed in the stormwater treatment system
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
Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of
tlus 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
If the stormwater system was used as an Erosion Control device, it must be restored to design conditionpnor
to operation as a stormwater treatment device, and prior to occupancy of the facility
The following items will require a modification to the permit
a Any revision to the approved plans, regardless of size
b Project name change
c Transfer of ownership
d Redesign or addition to the approved amount of built -upon area
e Further subdivision, acquisition, or sale of the project area The project area is defined as all property
owned by the pennittee, for which Sedimentation and Erosion Control Plan approval was sought
f Filling in, altering, or piping of any vegetative conveyance shown on the approved plan
10 The Director may determine that other revisions to the project should require a modification to the permit
0

State Stormwater Management Systems
Permit No SW8990839
11 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a mimmum
of ten years from the date of the completion of construction
12 Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property
13 The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable
built -upon area
14 The runoff from all built -upon area on the project must be directed into the permitted stormwater control
system
15 The Director may notify the permittee when the permitted site does not meet one or more of the mimmum
requirements ofthe permit Within the time frame specified in the notice, the permittee shall submit a wntten
time schedule to the Director for modifying the site to meet minimum requirements The permittee shall
provide copies of revised plans and certification in writing to the Director that the changes have been made
III. 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
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 unposed 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 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 rerssuance or termination does not stay any permit condition
Permit issued this the 13th day of January, 2000
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�(� l Kerr T Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990839
5

State Stormwater Management Systems
Permit No SW8990839
Big Toys Storage
Stormwater Permit No S W8 990839
Brunswick County
Designer's Certification
1, , as a duly registered in
the State of North Carolina, having been authorized to observe (pen odically/weekly/full rime) the construction of
the project,
for (Project Owner) hereby state that, to the best of my abilities, due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications
The checklist of items on page 2 of this form is included in the Certification
Noted deviations from approved plans and specification
SEAL
Signature
Registration Number
Date

State Stormwater Management Systems
Permit No SW8990839
Certification Requirements
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 drams 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
Delaney Aycock, Brunswick County Bwldmg Inspector
7

TE 99076
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)
Big Toys Storage, Inc
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
1985 Eastwood Road, Suite 206
City Wilmington State NC Zip 28403
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 )
5 Location of Project (street address)
Fish Factory Road
City Long Beach County Brunswick
6 Directions to project (from nearest major intersection)
Approx 1000 If South from the intersection of SR 1101 and NC Hwy 133_
7 Latitude N 33056`00" Longitude W 78°03`00" of project
8 Contact person who can answer questions about the project
Name Phillip Tripp Telephone Number 910-763-5100
II PERMIT INFORMATION
1 Specify whether project is (check one) X New Renewal Modification
Form SWU-101 Version 3 99
Page 1 of 4

SW8 990839
If this application is being submitted as the result of a renewal or modification to an existing pertrut list
The existing permit number and Its Issue date (if known)
3 Specify the type of project (check one)
Low Density X High Density Redevelop General Permit Other
4 Additional Project Requirements (check applicable blanks)
CAMA Major X 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 stortiwater management for the project
infiltration pond
2 Stormwater runoff from this project drams to the Cape Fear River basin (18-88-9-3-3)
3 Total Project Area 1077 acres
5 How many drainage basins does the project have? 1
4 Project Built Upon Area 65 6_ %
6 Complete the following information for each drainage area If there are more than two dramaga areas in the
project, attach an additional sheet with the information for each area provided in the same format as below
�asiu �z1:altat€`an ...
-, �itatn�ge �asilt � � " `
� �tra'uzsge �i&sitt
Receiving Stream Name
Unnamed trib to DuWhman Creek Outlet
Channel
Receiving Stream Class
SA
Drainage Basin Area
469,141 2 sf
Existing Impervious * Area
0
Proposed Impervious * Area
308,190 sf
% Impervious* Area (total)
65 6%
Imp"ous * vdace Area
On -site Buildings
T?€aitt g lases i
128,864 sf
l3rarrla Is I3aslu 2
On -site Streets
0
On -site Parking
P8 48 sf I 'z
On -site Sidewalks
210 sf
Other on -site
0
Off -site
0
Total
E,3A�;848 �03 1ct0
E_
* 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?
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 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 _NIA square feet ofany lot shall be covered by structures of impervious materials
Impervious materials include asphalt, gravel, concrete, brick stone, slate or similar material but do not include wood
decking or the water surface ofs-wimming 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 runofffrom outparcels or future development shall be directed into the permitted stormwater control
system These connechom 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
Form SWU-103
Form SWU-104
Form SWU-105
Form SWU-106
Form SWU-107
Form SWU-108
Form SWU-109
Wet Detention Basin Supplement
Infiltration Basin Supplement
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Underground Infiltration Trench Supplement
Neuse River Basin Supplement
Innovative Best Management Practice Supplement
Form SWU-101 Version 3 99 Page 3 of 4

VI SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ)
A complete package includes all of the items listed below The complete application package should be
submitted to the appropriate DWQ Regional Office
1 Please indicate that you have provided the following required information by initialing in the space
provided next to each Rem
Appl s 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 and 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
- Existmg drainage (including off -site), drainage easements, pipe sizes, ninoff 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) Tripp Engineering, P C
Mailing Address 419 Chestnut Street
City Wilmington State NC Zip 28401
Phone [phone]
VIII APPLICANT'S CERTIFICATION
Fax [phone]
I (print or type name ofperson listed in General Information, item 2) Terry Quinn
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H 1000
Signature '1 Date g1 V411
Form S WU-101 Version 3 99 Page 4 of 4

TRwp ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone [phone] • FAX [phone]
December 9, 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn Ms Linda Lewis
Re Big Toy Storage
SW8 990839
Brunswick County, NC
TE 99076
Dear Linda
RE(7FTVED
DEC 1 0 1999
BY:
In response to your request for additional information dated December 6, 1999, we
offer the following
1 We have revised our location of the level spreader Details with requested
additional information and description have been provided
2 Supplement has been revised
3 Calculations have been sealed
Please contact us with questions or comments, or if you require additional information
Thank you
Sincerely,
Tripp Engineering, P.C.
Charles D. Cazier, E I
CDC dcb
Enc

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B Hunt, Jr., Governor
Bill Holman, Secretary
Division of Water Quality
December 6, 1999
Mr Phil Tripp, P E
Tripp Engineering
419 Chestnut Street
Wilmington, NC 28401
AIM�
NCDENR
fop CIROUNA DEPARTMENT OF
ENVIRONMENT AND N!ArURA Ri CVRGES
Subject ACKNOWLEDGMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No SW8 990839
Big Toys Storage
Brunswick County
Dear Mr Tnpp
The Wilmington Regional Office received previously requested information for the Stormwater
Management Permit Application for Big Toys Storage on November 29, 1999 A preliminary review of that
information has determined that the application is not complete The following information is needed to
continue the stormwater review
The vegetated filter detail does not specify the location of the level spreader mechanism From
the detail provided, it appears that the spreader is to be located after the 50' filter Please show
the spreader mechanism located prior to entering the grassed area of the filter, and show the
elevation at the end of the filter Please also indicate on the detail that the outlet side of the level
spreader is lower than the inlet side, and show the elevation
Please revise the supplement to indicate the calculated 46,406 cubic feet of provided storage
volume
Please seal the revised basin design calculations
127 Cardinal Dr Ext, Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Emplover 50% recycled/10% post -consumer paper

Mr Tripp
December 6, 1999
Stormwater Project No SW8 990839
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 January 6, 2000, or the application will be
returned as incomplete The return of a project will necessitate resubmittal of all required items, including the
application fee
If you need additional time to submit the information, please mall 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 Please revise and return all
original documents enclosed with this letter, or provide new originals 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 \WQS\STORMWAT\ADDINFO\990839 DEC
cc Linda Lewis
127 Cardinal Dr Ext, Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone [phone] • FAX [phone]
November 22, 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn Ms. Linda Lewis
Re. Big Toy Storage
SW8 990839
New Hanover County, NC
TE 99076
Dear Linda
RFt---t''ED
NOV `L 9 1999
BY
In response to your request No 7, on the October 25, 1999 additional information
request letter for SW8 990839, we provide the following
• The location and grading for the vegetative filter along with a detail
• The flow spreader device has been aligned perpendicular to the flow of the
runoff
• A note referring to the grass schedule has been provided
All information as per our last phone conversation has been provided Please include
his plan with your review of our response dated November 8, 1999 Thank you
Sincerely,
Tripp Engineering, P C
Charles D Cazier, E.I.
CDC dcb
Eric

11/22/99 BIG TOY
cdc Swale Calculations
Swale Calculations
Runoff C = 071
Intensity ha = 6 3 in/hr
5 1 swales
RH = I(5)(D) / 2(sgrt(25+1)]
0 49D
A= (5D)(D)
= 502
Q = (1 49/n)(A)(RH)2/3(S)in
Q = (1 49/n)(5D2)(0 49d)u'(S)"'
D&. = [(Q)(n/1 49)] / ((5)( 49)'(S)"]
Swale NO 1
Drainage Area =
630 acres
Q = CIA
=
28 18 cfs
Swale length =
50 ft
difference in height =
025 ft
Slope (S) = -
00050
n=
003
D3/3 = 258
D = 113 ft
Vel = 2 77 fps
swales5 As 1 of 1
N CAgpZ��.,,�
{aQ SEAL yam;
17374 .Q
.�r�:F,yGI NE�Q •Q
G,9EG13'
EF
�Xxt.oliol
j� E C E I V E
�IJnus NOV 2 9 1999 D
D E M
PROJ#
99076

v
Table 8 05a
Maximum Allowable Design Velocttiest
for Vegetated Channels
Typical
Sod
Grass Lining
Permissible Velocity
Channel Slope
CharacteristicS2
for Established Grass
Application
Lining (ft/sec)
0 5 %
Easily Ercaible
Bermudagrass
50
Non plas,ic
Tall fescue
45
(Sands 8 Silts)
Bahiagrass
45
Kentucky bluegrass
45
Grass -legume mixture
35
E�osicn Resis,ant
Bermudagrass
o 0
Plastic
Tall fescue
5 5
(Clay ,nixes)
Bahiagrass
55
Kentucky bluegrass
5 5
Grass legume mixture
45
5-1044
Easily E cciole
Bermueagrass
45
Non plasac
Tali fescue
4 0
(Sands 3 Silts)
Bahiacrass
40
t
Kentucky bluegrass
a 0
Grass legume mixture
30
E osicn Ress_ m
Bermudagrass
5 5
P'as„c
Tall fescue
5 0
(Clay Mixes,
Eahiagrass
5 0
Ken,uckv blues ass
5
Gress feccn-,e-�ix,c,e
3 5
Eas.iv E cc,cle
Bermuaagrass
3 5
Non oiastic
Tall fescue
2 5
(Sancs 3 Silts)
Sahiag.ass
25
Kentucky bluegrass
2 5
E cs.cn PeSISiani
Bermudagrass
45
Plastic
Tall fescue
3 5
(Clav Mixes)
Bahiagrass
3 5
Kentucky oluegrass
3 5
Source USDA SOS Moeined
NOTE 'Permissible Veloc,ty based on 10 yr s,crm oeak runoff
ZSoil eroeiodity bases
on resis,ance e sod movement
from concentrates flowing water
3Befcre grass is estabhsnea permissiole velocdv is determined by ,he type
of temoorary finer usec
Selecting Channel To calculate the reuuired size of an open channel assurne the design flow is
umiorm and Joss not vary wtth time Since actual flow conditions change
Cross -Section throuehout die'cng!h of a ctiannel subdnrde the channel into desitm reaches
Geometry and dtsien o rch rcac ,o carry the appropriate capacav
Tile thrc, -m-, Or` nonce us�o „9 nnc' t rose-seeuons art % shaped p 1r
Loom in(' tr,m oival F-enre S 05b gees mathematical formulas ,or the uea
hvdrauuc rawus ant, op %idth of ,.ac`t of these shapes
8054
,
1

gECEIVE
0 N0V 091999
TKPP ENGINEERING, P.C.
419 -hesout S,reet Wilmington North Carohna 23,101
910/i63-5100 �cx 910/763-5631
LETTER OF TRUNSMITTAL
Job No, .)(✓07CC
To 1QC_nE=7rj2_ Date
Attention_A l J1S Subject e> Thy ST�e.�
FAX TRANSMITTAL NUMBER OF PAGES INCLUDES COVER
I am sending ,you ( ) AlACF--D ( ; UNDER SEP_RATE COVER
( ) P,mts ( ) Ticcings ( )' Cony of let er ( ) Sp=cificctions ( ) Ct"er
Z GI SITS PL-jorNl
_�—ppcze I ot-�3 �1JC=tLT2P+T101�1 [3AS�iJP���IT
pnr,c 2 cs--4 15V\1
Tnese are transmit-ed as c,)eck=_d below
(\,�or Approval ( ) For Your Use ( ) Siar & Return (�KRe,iew
Remarks
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11/81139 BIG TOYS STORAGE 99076
CDC InfiMration Trench
10-year Storm
WATERSHED DATA
Total Drainage Area
s R
acres
469,141
10 77
Impervious Area
Land Use
sq It
acres
buildings
128864
296
rkln as halt
179092
411
concrete
234
001
Total
308,190
708
INFILTRATION SYSTEM
I a half of runoff = impervious
V= 38 523 75 cu-4
Volume provided
Vp= 46,40600 cu-ft
DRAWDOWN RATE
RATE OF INFILTRATION 901N/HR
DEPTH OF BASIN 36 IN
DRAW DOWN ReTE?61N /901N/HP =
% impervious = 0 657
= 65 7%
say 660%
CPRE= 025
CPOST = (% Imp )(95)+(1-% imp)( 25)
071
12 = 5 06 In/hr
110 = 6 30 In/hr
125 = 7 13 in/hr
(TAKEN FROM SOILS REPORT)
aOHRS
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17374 Q.
= E C E I V E n
cAEGo.�°e99 NOV 091999
111uuao�
Pao., s E 9093y
sjr-r-ace Areas
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TRII'P ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone [phone] • FAX [phone]
November 8, 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn Ms Linda Lewis
Re: Big Toy Storage
SW8 990839
Brunswick County, NC
TE 99076
Dear Linda
E C E I V E
NOV 0 91999 D
FROG N M'093
In response to your request for additional information dated October 25, 1999, we offer
the following
In accordance with comments we received for erosion control, we have shifted the
southern most buildings toward the central access lane by 12' This reduced our impervious area
for the asphalt area and allowed for an additional buffer between the base of the fill slope and the
line of existing wetlands Please note these revisions around the southern portion of the site
1 We have included a level spreader along the entire length of the infiltration pond We
are proposing to install %2 of an 18" pipe at an invert of 7 25 to allow inflow to reach
across the base of the pond This should allow for an even flow to the entire base
2 We now include additional dimension "strings" to provide additional data We have
adjusted the building dimensional data to provide full budding dimensions
3 We have noted the discrepancy of the impervious are and now provide corrected
applications for your use
4 We have added notation that directs roof drainage to the proposed infiltration system
5 We have added notation to the outlet structure detail on sheets Cl and C2 to clarify
drainage to the vegetated filter and infiltration pond
6 We have shown the 50' vegetated filter with proposed contours There is room to get
back to existing natural ground prior to the wetland/marsh area

Ms Linda Lewis
SW8 990839
Page 2
7 We include additional data for the grading of the vegetated filter including flow
spreader device along the 4 0 contour and pertinent elevations We also include grass
types to be planted along the vegetated filter
8 We include the calculations for the areas of contour nos 8, 9, 10 & 11 for your use
9 The top of basin elevation is at elevation 11 5 We have adjusted the supplement to
indicate 11 5
10 We have clarified the identification of contour nos 8 and 11 for your use We have
provided all design for 3 1 side slopes
Please contact us with questions or comments, or if you require additional information
Thank you
Sincerely,
TN-,
neerin P C.
Phillip G. Tripp, P
PGT dcb
Eric

Department of Environment
and Natural Resources
Wilmington Regional Office
James B Hunt, Jr., Governor
Bill Holman, Secretary
Division of Water Quality
October 25, 1999
Mr Terry Quinn
1985 Eastwood Road, Suite 206
Wilmington, NC 28403
NCDENR
NORTH CAROLINA Di ARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject ACKNOWLEDGMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No SW8 990839
Big Toys Storage
Brunswick County
Dear Mr Quinn
The Wilmington Regional Office received a Stormwater Management Permit Application for Big Toys
Storage on August 19, 1999 A preliminary review of that information has determined that the application is
not complete The following information is needed to continue the stormwater review
Provide a distribution device in the basin to spread out the runoff, or provide multiple access
points, ie , allow piping from CI-1 to enter the basin directly This would require an additional
bypass weir in the curb inlet
Provide dimensions for the basin, access drives, and walks The numbers shown for the
buildings, le , 18 x 12' x 36' are misleading If you multiply that out, the total distance is 216',
but it scales 225' Additionally, the 36' is misleading because there is a small area between the
buildings that is not scaled and is left out Please provide overall dimensions in addition to the
individual umt dimensions, and make sure when you multiply out the individual dimensions that
they match up to the overall dimensions
While my overall numbers come close to yours, I am getting 1,000 square feet more in building,
and 1,000 square feet less in paving Please check and adjust the breakdown part of the
application as needed I think this is due to the discrepancy noted above
Please add a note that all roof drainage must be directed into the permitted system
Please label the pipes in the I D structure detail with "To Basin" and "To Vegetated Filter"
Please show the proposed contours along the southern edge of the basin Is there sufficient room
to provide the required 50' vegetated fitler and get back to natural ground before you get into
the marsh or wetland?
7 Please show the location and grading for the required vegetated filter and a detail Include
pertinent elevations, flow spreader device, grass type, and label all components Remember that
in a filter, the runoff travels perpendicular to the contours Place the flow spreader on contour
127 Cardinal Dr Ext , Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportumty Affirmative Action Emplover 50% rerveli,r]M L, noO-en.,c„,.,ar .,,.,or

Mr Quinn
October 25, 1999
Stormwater Project No SW8990839
Please support the conclusion in the calculations that 47,079 cubic feet of storage has been
provided by providing the surface areas at elevations 8, 9, 10, and 11 in the basin, and doing the
calculation of averaging the areas Simply stating that it is provided is not sufficient
The top of basin is noted as 115 on the plans, but as 12 on the supplement Please clarify and
revise as needed
10 Please label the 8 and 11 contour in the basin on the plans Please also note the 3 1 slope
requirement
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 November 25, 1999, or the application will
be returned as incomplete The return of a project will necessitate resubmittal of all required items, including
the application fee 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 ofNCGS 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 If you have any questions
concerning this matter please feel free to call me at [phone]
RSS/arl
cc
Sincerely,
Linda Lewis
Environmental Engineer
S \WQS\STORMWAT\ADDINFO\990839 OCT
Linda Lewis
Phil Tripp, P E
127 Cardinal Dr Ezt , Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]

TRII'P ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone [phone] • FAX [phone]
August 19, 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845 qt
Attn Ms. Linda Lewis
Re Big Toys Storage
Brunswick County, NC
TE 99076
Dear Linda
WG 19 p99
NI%
Enclosed please find two (2) sets of plans, one (1) signed original and one (1)
copy of the application form with narrative, one (1) infiltration basin supplement, two (2)
sets of draw down rate and infiltration trench calculations, a copy of the soils evaluation
report and one check for the application fee
Please review for approval and contact us with any questions or comments
Thank you
Sincerely,
Tripp Engineering, P C.
Monica V. Loughlin
NIVL dcb
Enc

Stormwater Narrative
July 21, 1999
Re Big Toys Storage
Brunswick County
TE 99076
The total drainage area of this project is 10 77 acres 256 storage units, 2 work bays and
a two-story office/clubhouse are being constructed with rooftops of 128,864 sf A gravel
access and parking area for the buildings will total 179,092 sf 308,190 sf of impervious
area (234 sf of sidewalk) brings the built upon area to 65 7% impervious
Stormwater runoff will be handled by an infiltration pond designed to exceed the states
requirement of the first 1 5 inches of runoff This pond will dram to Dutchman Creek
with a classification of SA A vegetated filter is not required in this infiltration design
E C E I V E
AUG 191999 D
D E M
PROS #_

111010
ENGINEERING, INC
2592 Hope Mills Road
Fayetteville, NC 28306
910426-2323
Tripp Engineering, P C
419 Chestnut Street
Wilmington North Carolina 28401
Attention; Mr Phi. Tripp
RefPrencP Infi'tration Evaluation
Big Toys Storage at Westport
Brunswick County, North Carolina
job No 3315-99
Dear Mr Tnpo
July 6, 1999
Soo Tech Engineering Inc r=,s r; c= rtiy conducted an evaluation of the existing site
coneic,ons for the development of the Big Toys Storage complex at Westport on Fish
Factory Road in Brunswick County Nortn Carolina
We conducted an investigation of the subsurface soils in the designated stormwater
infiltration pond indicated on the provided site sketch on July 2 1999 The purpose for
this evaluation was to determine `he suitability of the in -place soils for the discharge of
stormwater runoff We investigated the subsurface soils to a depth of five feet at the
designated location Our rep, asentative classified each subsurface strata encounterec
by depth and obtaired so,. samples
Selected samples were tested a) our lak,oratory for grain size in accordance with the
American Society for Testirg and Materials (ASTM) procedures entitled ASTM D-422,
"Partite Size Analysis of Soils" Our tests indicated the subsurface soils at the test
location to be a gray relatively free draining sand overlying a dark brown silty fine to
medium sand strata which extended `c the depth we were capable of investigating to
using hand tools

Infiltration Evaluation
Big Toys Storage at Westport
Brunswick County North Carolina
Page T n'c
Cur representative also conducted an e�a;uation of the subsurface Infiltration in the
stormwater Infiltration area The Infiltration rate of the in -place soils were determined
at a depth of approximately 14 inches below the exis'Ing ground surface The infiltration
rate was found to be 0 15 inches per minute based on our analysis We encountered
groundwater during this investigation at approximately 34 to 36 inches below the
existing ground surface
We also investigated the soils upslope and found the subsurface soils to be a tan
drainable sand with a groundwater condition at approximately 38 Inches below the
existing surface These soils should be suitable for stormwater discharge We
anticipate a seasonal high groundwater condition in this area at approximately 36
Inches or deeper '!epending on the upslope location
Please find the res ' : of our t,eld :,no laoora�ory tests and a sketcn I^dicating the test
ease contact us If you have questions
YcvrC if -
SOIL TECH -NGcc -RING INC
C�u�ti
Parks o Downing r
/ James Pate P E
/ J
PADjr JP/tm
Enclosure ;,,-14 yF

Infiltration Evaluation
Big Toys Storage at Westport
Brunswick County, North Carolina
Job No.: 3315-99
Subsurface Description
Location Depth Soil Description
#1 0"- 6" Light Gray Slightly Silty Fine SAND
6"- 12" Light Brown Slightly Silty Fine SAND
12" - 24" Dark Brown Slightly Silty Fine SAND
24" - 52" Gray Light Gray Fine SAND
Groundwater was encountered at 36 inches below the exiting ground surface
Infiltration Rate 0 15 inches per minute
Test was conducted 14 inches below existing ground surface

r
Did Sandy
Road
I
Q I �
I �
I �
I ,
lntillza Luui I
Pond I I
i
1 '
® Ixviotes location of intiltra Lion testing
1 1511 I i( t nn/ Ro id
AN
ENGIIV'fE2/
Eiy Toys Stozaye @ Westport
Bnr w.zck County, North Carolina
/.I
Jnh No 3315-99

Grain Size Analysis
Big Toys Storage at Westport
Brunswick County, North Carolina
Job No 3315-99
Sieve Size Percent Passing By Weight
#10 999
#40 90 1
#200 40
Percent Moisture 18 2 %
Soil Description Gray
Silty
Fine to
Medium
SAND