SW8040518_HISTORICAL FILE_20040519

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

NORRIS, KUSKE & TUNSTALL
CONSULTING ENGINEERS, INC.
902 MARKET STREET • WILMINGTON, NC 28401
PHONE [phone] • FAX [phone]
May 17, 2004
Ms. Linda Lewis, Environmental Engineer
NC DENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: State Stormwater Permit Submittal
Longley Supply — Marlboro Street Site
376 Marlboro Street
Wilmington, NC
NKT Project No. 03140
Dear Ms. Lewis:
j�
J. PHILLIP NORRIS, P.E.
JOHN A. KUSKE, ]I], P.E.
JOHN S. TUNSTALL, P.E.
J.A. KUSKE, P.E. OF COUNSEL
MAY 19 2004
IM
Enclosed are two (2) sets of plans for the subject project, one (1) set of
calculations,' the original Division of Water Quality Stormwater Management
Permit application, the original SWU-102 supplement form, one (1) copy of the
stormwater narrative and a $420.00 check for the processing fee.
Please review this information for approval and contact us with any questions or
comments you may have. Thank you for your assistance on this project.
Sincerely,
NORRIS, KUSKE, & TUNSTALL
CONSULTING ENGINEERS, INC.
1�
J. 46hillip Norris, P.E.
J PNlasn
03140 05-17-04-s-sw-Itr
Enclosures
cc: H. E. Longley I Longley Supply Company

State Stormwater Management Systems
Permit No. SW8 040518
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
H. E. Longley
Longley Supply Marlboro Street Site
376 Marlboro Street, New Hanover County
FOR THE
construction, operation and maintenance of a wet detention pond 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.
.R
This permit shall be effective from the date of issuance until August 12, 2014, 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 in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 379,253 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 9,623 square feet.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be'recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 2of7

State Stormwater Management Systems
Permit No. SW8 040518
6. The following design criteria have been provided in the wet detention pond and
must be -maintained at design condition:
a. Drainage Area, acres: 12.44
Onsite, ft . 541,790
Offsite, ft2: 0
b. Total Impervious Surfaces, ft2:
C. Design Storm, inches:
d. Pond Depth, feet:
e. TSS removal efficiency:
f. Permanent Pool Elevation, FMSL:
g. Permanent Pool Surface Area, ft2:
h. Permitted Storage Volume, ft3:
i. Temporary Storage Elevation, FMSL
j. Controlling Orifice:
k. Permitted Forebay Volume, ft3:
I. Receiving Stream/River Basin:
M. Stream Index Number:
n. Classification of Water Body:
379,253
1
6.0
90%
28.0
24,115
39,047
29.5
2.5" O pipe
20,912
Burnt Mill Creek 1 Cape Fear
CPF 17 18-74-63-2
"C Sw"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall, at all times, provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. More frequent maintenance, inspection, sediment removal, etc., may be required
due to nuisance conditions or unforeseen circumstances.
Page 3of7

State Stormwater Management Systems
Permit No. SW8 040518
5. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
6. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
b. Separated units, where the nozzle, pump and intake are connected by
tubing, may be used only if they draw water from the surface in the
deepest part of the pond.
c. The falling water from the fountain must be centered in the pond, away
from the shoreline.
d. The maximum horsepower for a fountain in this pond is 113 horsepower.
7. 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.
8. 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.
9. 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.
10. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
11. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
12. The permittee shall submit final site layout and grading plans for approval for any
permitted future areas shown on the approved plans, prior to construction.
13. 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.
Page 4of7
x

State Stormwater Management Systems
Permit No. SW8 040518
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 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
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the, parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or may not
be approved. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
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) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DEN Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a, request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
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.
Permit issued this the 12th day of August, 2004.
NORTH 'CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
iLrC _Az— A� j /" k 1_1" _L_)i
1-4�7 Alan W.`Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

NKT #03140
.�`t r"`"+�_, �'4ti ��_" T aye-.,,:`;;; +�'_.a�°.;L: :�3",'�=iy e�•�.=— - - LY:.<�ir-;t•"�xi. •-', ,�ra� �•, e*n ..rs.�.
Date Received
Fee Paid
Permit Nnrnher
/ / !
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This farm 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):
—Long le rely Company
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
H. E. Longley, President
3. Mailing Address for person listed in item 2 above:
P.O. Box 3809
City: Wilmington
Telephone Number: [phone]
State: NC Zip: 28406
4. Project Name (subdivision, facility, or establishment name — should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Longley Supply_ -_Marlboro Street Site
5. Location of Project (street address):
376 Marlboro Street
City: Wilmington County:
6. Directions to project (from nearest major intersection):
New Hanover
From intersection of US 17 and NC 132 take US 17 south to S. Kerr Avenue, turn right onto
Randall Parkway. Site- is at northwest corner of Randall Parkway and Marlboro Street.
7. Latitude: 340 13' 54"
Longitude: 770 53' 35"
of project
S. Contact person who can answer questions about the project:
Name: Phil Norris, P.E. Telephone Number: [phone]
ll. PERMIT INFORMATION
1. Specify whether project is (check one):
X New
Form SWU-101 Version 199 Page i of 4
Renewal Modification

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
Existing permit number NIA And its issue date (if known) NIA
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 stormwater management for the project.
Retention Pond
2. Stormwatcr runoff from this project drains to the
Cape Fear
River Basin.
3. Total Project Area: 12.44 AC
4. Project Built Upon Area:,
70 %
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.
'f. -3l "c'S`._.. �._..+H �: K: �..�'� iu�- � .F;`''a -
Mi srn:Information.� ;`� v, .; :: ��
- ^ly^y R.- `FS'r-vc...— i= T`,�L s�} - 's. z-..
' J:L.Draina e Areaal �<� i,
�. _,...{ .v„i N .rrl�l,'+.iit�E g. S
,. ,Drama e,Area 2
Receiving Stream Name
UT Wl—_�ek ---7
f ,t' wt eels
Receiving Stream Class
C-Swam
Drainage Area
541,790 SF 1 12.44 AC
Existing Impervious * Area
0
Proposed Impervious* Area
379,253 SF 18.71 AC
% Impervious* Area (total)
70.0
rIm eivi uo s*SdrfaceArea. ,_`D�aina
a Area 1!s �,�_�AMM�
Y �Draina"e'A_rea_ 2_
On -site Buildings
92,060 SF 12.11 AC
On -site Streets
0
On -site Parking
277,570 SF 16.37 AC
On -site Sidewalks
0
Other on -site (Future)
9,623 SF 10.22 AC
Off -site
0
Total: 379,253 SF 18.71 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 Page 2 of 4

7. How was the off -site impervious area listed above derived? NIA
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.
The following covenants are intended to ensure ongoing compliance with slate 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.
No more than 379,253 square feet ofanv 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.
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
Form S WU-103
Form S W U-104
Form SWU-105
Form SWU-106
Form SWU-107
Form SWU-108
Form SWU- I 09
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 he 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 he
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.
• 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 J project boundary
- Location map with named, streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor. elevations
- 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)
VIL 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.
J. Phillip Norris, P.E.
Designated agent (individual or firm): Norris, Kuske & Lunstal l Consulting Engineers, Inc.
Mailing Address: 902 Market Street
City: Wilmington State: NC
Phone: [phone] Fax: [phone]
VIII. APPLICANT'S CERTIFICATION
Zip: 28401
1, (print or type name of person listed in General Information, item 2) H. E. Longley, President
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 wilt be recorded, and that the proposed project complies with the requirements of 15A NCAC
2H.1000.
Signature: ate: �1169 "
Form SWU-101 Version 3.99 Page 4 of 4

N KT #03140
Permit No. �Jl ' <C s d
State of North Carolina (to be provided by DWQ)
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
structure details.
I. PROJECT INFORMATION
Project Name: lwongley Supply - Marlboro Street Site
Contact Person: Phil Norris, P.E. Phone Number: [phone]
For projects with multiple basins, specify which basin this worksheet applies to: 1
elevations
Basin Bottom EIevation 22.00 ft. (floor of the basin)
Permanent Pool Elevation 28.00 ft. (elevation of the orifices)
Temporary Pool Elevation 29.50 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 24,115 sq. ft. (water surface area at the orifice elevation)
Drainage Area 12.44 ac. (on -site and off -site drainage to the basin)
Impervious Area 8.71 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SAIDA'
Diameter of Orifice
Design Rainfall
Design TSS Removal'
95,925 cu. ft. (combined volume of main basin and forebay)
39,047 cu. ft. (volume detained above the permanent pool)
20,912 cu. ft. (approximately 20% of total volume)
0.039 (surface area to drainage area ratio from DWQ table)
2.5 in. (2 to 5 day temporary pool draw -down required)
1.0 in.
90 % (minimum 85% required)
Form SWU-102 Version 3.99 Page 1 of 4

'Footnotes:
1. 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 901/6 TSS removal.
IL 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.
s
a. The permanent pool depth is between 3 and 6 feet (required minimum 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.
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.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
I. 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 wilt drain the basin for 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) ❑ does
This system (check one) ❑ does
® does not incorporate a vegetated Filter at the outlet.
® does not incorporate pretreatment other than a forebay.
Form SWU-102 Version 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 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 4.5 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 4.5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the hlanks)
Permanent Pool Elevation 28.00
Sediment Re oval El. 23.50 75°
--------------- ---- Sediment Removal Elevation 23.50 75%
Bottom El vation 22.00 5%--------------------------------------125%j
-----
Bottom Elevation 22.00
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 SWU-102 Version 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: H. E. Lonalev
Title: President
Address: P.O. Box 3809 Wilmington. NC 28406
Phone: 910-762;7793
Signature:
Date:
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.
1, A �/`, a -Notary Public for the State of 1IMW f71 c� �QL1/Ui%
County of �4Za1 �ffl�C%C/(' , do hereby certify that
Personally appeared before me this x day of Zoo , and acknowledge the due
Execution of the foregoing wet detention basin maintenance re irements. Witness my hand and official seal.
� I �
5E
Signature ,� .'L�Q
My commission expires
Form SWU-102 Version 3.99 Page 4 of 4

ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
J. Phillip Norris, P.E. John S. Tunstall, P.E_
John A. Kuske, III, P.E. J.A. Kuske, P.E.
James T. Pyrtle, P.E. C. Lawrence Sneeden, Jr., P.E.
C-- -i ket]Street • Wilmington, NC 28401-4733 • Phone [phone]. Fax [phone]
902_
wvwv.andrewandkuske.com • [e-mail]
LETTER OF TRANSMITTAL
F
J Date: Job No. G
/VCR//C�V � Subject:
WE ARE SENDING You VIA :FAX :`TRANSMITTAL. NUMBER.... OPAGES
❑ ATTACHED ❑ UNDER SEPARATE COVER
INCLUDING THIS TR�4NSMlTTAL Z
❑ SHOP DRAWINGS ❑ PRINTS ❑ TRACINGS
❑ SPECIFICATIONS ❑ DISKS ❑ COPY of LETTER :Cali 910=343 9653 af- you have any dlfflcUlty
� �receiving ails Fnessag
COPIES DATE NO. DESCRIPTION
❑ AS REQUESTED ❑ FOR REVIEW AND COMMENT ❑ FOR APPROVAL `
❑ FOR YOUR USE ❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US
REMARKS:AL-
�� .
CC:
CONFIDENTIAL AND PRIVILEGED: Information contained in this document is privileged and confidential, intended for the sole use of the
addressee. If you are not the addressee of the person responsible for delivering it to the addressee you are hereby notified that any dissemination,
distribution or copying of this document is strictly prohibited. If you have received this document in error please immediately notify the sender and
return to the address above_

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[Fwd: Longley Supply SW8 0405181
Subject: [Fwd: Longley Supply SW8 040518]
From: Linda Lewis <[e-mail]>
Date: Fri, 06 Aug 2004 10:00:08 -0400
To: Phil Norris <[e-mail]>
Phil:
I forgot one thing- there are -no forebay sizing calculations. Please indicate how
you determined that 20,912 cubic feet of forebay volume is provided.
Thanks, Linda
Subject: Longley Supply SW8 040518
From: Linda Lewis <Linda.Lewis@ncmai].net>
Date: Fri, 06 Aug 2004 09:34:32 -0400
To: Phil Norris <[e-mail]>
Phil:
Can you please confirm for me that this project proposes to curb the outer edges of
the parking area? The spot elevations only provide one elevation, so I wasn't sure
if there was curbing or not. I hope there is because if there isn't, I'm not sure
how the runoff will be able to get into the inlets.
I think the addition of a note to the plans would be sufficient to convey this, or
the addition of top of curb elevations.
Other than that, this permit is ready to be drafted and signed.
Linda
Longley Supply SW8 04051$ Content -Type: message/rfc822
Content -Encoding: 7bit
1 of 1 8/6/2004 10:00 AM

WET DETENTION POND ANALYSIS
FILE NAME
PROJECT #: SW8 040518
G:\DATA\WPDATA\WQS\PONDkO4O5l8.WK1
REVIEWER: L. Lewis
PROJECT NAME: Longley Supply Co. DATE: 06-Aug-04
Marlboro Street
Receiving Stream: Burnt Mill Creek Class: C Sw
Drainage Basin: Cape Fear Index No. CPF17 18-74-63-2
Site Area 12.44 acres
Drainage Area 5:790!fl0', square feet Area in Acres 12.44
IMPERVIOUS AREAS
Rational C
Building
92060.00 square feet
Parking
277570.00 square feet
Future
9623.00 square feet
square feet
square feet
square feet
TOTAL 37:92530 square feet Rational Cc= 0.06
SURFACE AREA CALCULATION
% IMPERVIOUS 70.00%
Des. Depth 6
TSS: 90
SA/DA Ratio 3.90%
Req. SA 21130 sf
Prov. SA
VOLUME CALCULATION * place a "1" in the box if Rational is used
Rational ?*
Des. Storm
00:
inches
Rv=
0.680
Bottom
22 msl
Perm. Pool
2800
msl
Design Pool
29.5 msl
Storage met @elev 29.18 msl
Req. Volume
3i7t1�'
cf
Vol. Prov. at DP
:::>.:>:3 47:.:>
cf
ORIFICE CALCULATION
Avg. Head =
Flow Q2, cfs
Flow Q5, cfs
No. of Orifices
Diameter, inches
Drawdown =
0.70
ft
0.178
cfs
0.071
cfs
>`a!
2<af}
weir H x W
6<days
FOREBAY
Perm. Pool Volume=
Req. Forebay Volume= 0
Provided Volume= Or-(IZ
Percent=
Elevation Area Inc. Vol. Acc. Vol.
28.00 24115.00
29.50 27948.00 39047,25 39047.25
COMMENTS
Surface Area , Volume and Orifice are within Design Guidelines

Long ley Supply SW8 040518
Subject: Longley Supply SWS O40518
From: Linda Lewis <[e-mail]>
Date: Fri, 06 Aug 2004 09:34:32 -0400
To: Phil Norris <[e-mail]>
Phil:
Can you please confirm for me that this project proposes to curb the outer edges of
the parking area?'The spot elevations only provide one elevation, so I wasn't sure
if there was curbing or not. I hope there is because if there isn't, I'm not sure
how the runoff will be able to get into the inlets.
I think the addition of a note to the plans would be sufficient to convey this, or
the addition of top of curb elevations.
Other than that, this permit is ready to be drafted and signed.
Linda
1 of 1 8/6/2004 9:50 AM

STORMWATER SYSTEM & EROSION CONTROL NARRATIVE
LONGLEY SUPPLY - MARLBORO STREET SITE
WILMINGTON, NORTH CAROLINA
For
Longley Supply Company
P.O. Box 3809
Wilmington, NC 28406
[phone]
May 2004
Prepared by:
RECEIVED
MAY 18 2004
DWQ
PROJ # SW 1U 4v�
NORRIS, KUSKE, & TUNSTALL CONSULTING ENGINEERS, INC.
902 Market Street
Wilmington, North Carolina 28401
[phone]
[phone] (Fax)
E-mail: [e-mail]
NKT Project No. 03140

DESCRIPTION:
The project site is a 50-acre tract located at 376 Marlboro Street in Wilmington,
North Carolina. The soils of the site consist of wooded sandy clay topsoil and grades
ranging from 0.5% to 2.0%. Approximately 13 acres will be graded to allow
construction of a new commercial building with paved parking and paved access. The
runoff from the site is estimated using the rational method 10-year design storm and
rainfall data for the area. Construction is scheduled to begin as soon as all permits and
approvals are obtained.
EROSION CONTROL MEASURES:
The attached plans and specifications give the requirements for erosion control
measures. Silt fencing will be provided along each side of the entrance drive where
stormwater would be expected to sheet flow from disturbed areas directly to adjacent
property. The detention pond will be used as a silt basin during construction and
restored to its design contours prior to completion. A gravel construction entrance will
be constructed at all entrances. Maintenance will be provided by the grading contractor
and developer.
STORMWATER MANAGEMENT MEASURES:
The project site is located in New Hanover County. Land disturbing on the site
will exceed one acre, which requires the site to comply with the State Regulations. The
stormwater runoff from the development will be directed to the stormwater detention
pond. The stormwater detention pond was designed to accommodate this site at 70%
impervious area lot coverage.
CONSTRUCTION SEQUENCE:
The Contractor will install the gravel construction entrance and silt fence prior to
beginning any clearing and grading operations. Additional silt fence will be installed
when and if conditions warrant during construction. The detention pond/silt basin will
be constructed immediately after that portion of the site is cleared, and outlet structure
with protection will be installed. Disturbed areas will be landscaped or seeded upon
completion.

MAINTENANCE PLAN
1. All erosion and sediment control practices will be checked for stability and
operation following every runoff -producing rainfall but in no case less than once
every week. Any needed repairs will be made immediately to maintain all
practices as designed.
2. Install erosion control measures before beginning construction or as soon
thereafter as possible. All erosion and sediment control practices will be
checked for stability and operation following every runoff -producing rainfall but in
no case less than once every week. Any needed repairs will be made
immediately to maintain all practices as designed.
3. Maintain the gravel construction entrances in a condition to prevent mud or
sediment from leaving the construction site. The contractor shall inspect the
construction entrances on a daily basis. This will require periodic top dressing
with additional No. 4 stone. Any objectionable materials spilled, washed, or
tracked onto public roadways shall be removed immediately.
4. Install erosion control measures around the drop inlets as shown on the plans to
trap silt during construction. Inspect the erosion control around the inlets after
each rain and make repairs immediately. Remove sediment when it becomes
0.50 deep to provide adequate storage volume for subsequent rains. When the
contributing drainage area has been adequately stabilized, remove all materials
and any unstable soil and either salvage or dispose of it properly. Bring the
disturbed area to proper grade and appropriately stabilize all bare areas around
the drop inlets.
5. Sediment will be removed from behind the silt fence when it becomes 0.5 feet
deep at the fence. The sediment fence will be repaired as necessary to maintain
a barrier.
6. No cut or fill slopes shall exceed a side slope of 1 vertical to 3 horizontal unless
otherwise specified on the plan. All slopes shall be seeded and stabilized within
15 days.
7. The stormwater ponds will act as sediment basins and will be cleaned out when
the level of sediment reaches 2.0 ft below the top of the riser. Gravel will be
cleaned or replaced when the sediment pool no longer drains properly.
8. No cut or fill slopes shall exceed a side slope of 1 vertical to 3 horizontal unless
otherwise specified on the plan. All slopes shall be seeded and stabilized within
15 days.

9. All disturbed areas shall be seeded within 15 days of disturbance. All seeded
areas will be fertilized, reseeded as necessary and mulched according to
specifications in the vegetative plan to maintain a vigorous, dense vegetative
cover.
10. More stringent measures shall be used to halt erosion if those shown on this plan
are not effective.
11. All erosion shall be controlled including side slopes before the project is
completed.
12. Remove temporary measures upon completion of project. All permanent
measures will be well established before project closeout.

SECTION 02920
SOIL EROSION AND SEDIMENTATION CONTROL
1. GENERAL
1.1 Contractor shall take every reasonable precaution throughout construction to
prevent the erosion of soil and the sedimentation of streams, lakes, reservoirs, other
water impoundments, ground surfaces, or other property as required by State and Local
regulations.
1.2 The Contractor shall install all required silt fences, and construction entrances at
the initiation of work, and have these measures reviewed and approved by the local
permit authority prior to clearing and grading operations.
1.3 The Contractor shall, within 15 days of suspension or completion of land
disturbing activities, provide permanent protective covering for disturbed areas.
Temporary and permanent erosion control measures shall be coordinated to assure
economical, effective, and continuous erosion and siltation control throughout the
construction and post -construction period. Use the specified seed for both temporary and
permanent seeding.
2. PRODUCTS
2.1 Asphalt for anchoring mulch shall be Type SS-1 Emulsion.
2.2 Fertilizer shall be 10-10-10 grade or equivalent.
2.3 Lime shall be dolomitic agricultural ground limestone containing not less than 10
percent magnesium oxide.
2.4 Mulch shall be small grain straw, hay, wood chips, asphalt emulsion, jute or other
suitable material free of undesirable weed seed.
2.5 Phosphate shall be 20 percent superphosphate or equivalent.
2.6 Seed shall be 20% carpet grass, 24% Bermuda, 20% turf Fescue, 10% Creeping
Red Fescue, and 24% Annual Rye grain. Bermuda seed shall be hulled for warm
weather planting and unhulled for cool weather planting. Purity of seed shall be a
minimum of 98 percent and germination shall be a minimum of 85 percent.
2.7 Silt fence shall consist of NCDOT Class A fabric supported by wood or metal
posts spaced not more than 6 feet on center. The bottom of the fabric shall be buried a
minimum of 6 inches.
2.8 Gravel for check dams shall be #57 washed stone.

2.9 Aggregate for construction entrance shall be #4 washed stone.
2.10 Stone rip rap for check dams and erosion control shall be NCDOT Class A or B
as shown.
3. EXECUTION
3.1 General: Take every practicable measure during construction or suspension to
work to minimize erosion and siltation. Measures should include good construction
practices, temporary physical barriers to sediment travel, settling basins for new ditches,
and establishment of vegetative cover.
3.2 Construction Practices
3.2.1 Avoid dumping soil or sediment into any wetland or watercourse.
3.2.2 Maintain an undisturbed vegetative buffer where possible between a natural
watercourse and trenching and grading operations.
3.2.3 Avoid equipment crossings of streams, creeks, and ditches where practicable.
3.2.4 Grade all cut, fill and ditch slopes to minimum slope of 3:1, unless otherwise
shown or directed.
3.3 Temporary Physical Barriers are required where sedimentation on off site
property or excessive erosion is a problem.
3.3.1 Mulch shall be used for temporary stabilization of areas subject to excessive
erosion and for protection of seedbeds after planting where required.
1. Apply grain straw and hay at a rate of 75 to 100 pounds per 1000 square feet
and wood chips at a rate of 500 pounds per 1000 square feet. Jute and mesh
should be installed as per manufacturer's instructions.
2. Asphalt emulsion for slope stabilization should be applied at a rate of 1,000
gallons per acre. Asphalt emulsion used for anchoring straw should be
applied at a rate of 150 gallons per ton of straw.
3.3.2 Silt Fences shall be used at the base of slopes to restrict movement of sediment
from the site. Clean silt fence of accumulated sediment after each rainfall event or
when it exceeds a depth of 0.5 feet above natural grade.
3.3.3 Stone Check Dams, placed at the discharges of creeks, ditches, and swales,
shall consist of Class A rip rap at minimum two feet high and three feet thick across the

watercourse, with a one -foot thick layer of gravel on upstream side. Remove sediment if
accumulated to a depth of 1.0 feet at upstream face.
3.4 Vegetative Cover: Establish and maintain permanent vegetative cover on all
unpaved areas disturbed by the work.
3.4.1 Preparation of Seedbed: Areas to be seeded shall be scarified to a depth of 4
inches and until a firm, well pulverized, uniform seedbed is prepared. Lime, phosphorous
and fertilizer shall be applied during the scarification process in accordance with the
following rates:
Lime: 45 pounds per 1000 square feet
Phosphorous: 20 pounds per 1000 square feet
Fertilizer: 17 pounds per 1000 square feet
3.4.2 Seeding: Disturbed areas shall be seeded with 2 to 3 pounds per 1000 square
feet of the specified seed mixture. Seed shall be worked into the bed to a depth of 114
inch. Regrade and seed eroded areas immediately
3.4.3 Mulch all areas immediately after seeding. Mulch shall be applied and anchored
as specified hereinbefore. Reapply as necessary to retain cover until grass is
established.
3.5 Construction Entrance: Provide an aggregate drive, 20 feet wide by 50 feet long
by 6 inches thick at each entrance to the site used by construction vehicles, until such
time as the permanent roadway is constructed. Remove soil if accumulated to a depth
greater than 0.5 inches.
3.6 Maintenance: The Owner and Contractor shall be responsible for maintaining all
temporary and permanent erosion control measures. Temporary structures shall be
maintained until such time as vegetation is firmly established in the area protected by
the structure. Permanent streambank protection and grassed areas shall be
maintained until completion of the project. Areas that fail to show a suitable stand of
grass or which are damaged by erosion shall be immediately repaired.
END OF SECTION

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