SW8021023_CURRENT PERMIT_20030403

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SWV�I��
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
61i()�j
YYYYMMDD

Michael F. Easley, Governor
William G. Ross, Jr„ Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
April 3, 2003
Mr. David Stainback
106 N. Marine Boulevard
Jacksonville, NC 28540
Subject: Permit No. SW8 021023
Jacksonville A -Storage Inn
High Density Stormwater Project
Onslow County
Dear Mr. Stainback:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Jacksonville A -Storage Inn on March 25, 2003. 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 214.1000. We are forwarding Permit No. SW8 021023
dated April 3, 2003, for the construction of Jacksonville A -Storage Inn.
This permit shall be effective from the date of issuance until April 3, 2013, and shall be subject
to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this 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
RSSlarl: S:IWQSISTORMWATIPERMIT1021023.APR03
cc: Gordon McAdams, P.E.
Onslow County Building Inspections
Linda Lewis
Wilmington Regional Office
Central Files
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone]
NCDEN`R
Customer Service
800-623-7748

State StomiNvater Management Systems
Permit No. SW8 021023
STATE OF NORTH CAROLINA
DEPARTNIIa NT OF ENVIRONl1'IENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORNIWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Mr. David Siai' back
Jacksonville A -Storage Inn
Onslow County
FOR THE
construction, operation and maintenance of a wet detention basin and an infiltration trench 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 April 3, 2013, 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 pages 3 and 4 of this pennit, the Project Data Sheets. The wet detention
basin and the infiltration trench have been designed to handle the runoff from 96,754 ft2
and 7,296 ftz, respectively, 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.
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. Drainage from the existing portion of the site is proposed to be directed around the wet
detention pond via an inverted pavement crown which collects and directs runoff into a
catch basin and pipe along the east property line.
2

State Stormwater Management Systems
Permit No. SW8 021023
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Jacksonville A -Storage Inn
Wet Detention Basin
Permit Number:
SW8 021023
Location:
Onslow County
Applicant:
Mr. David Stainback
Mailing Address:
106 N. Marine Boulevard
Jacksonville, NC 28540
Application Date:,
March 25, 2003
Receiving Stream/River Basin;
Sandy Run Branch / White Oak
Index #:
WOK02 19-10-1 -
Classification of Water Body-
"SC NSW"
Drainage Area, acres:
3.53
Onsite, ft2:
3.53
Offsite, ft2:
0
Total Impervious Surfaces, ft2:
96,754
Pond Depth, feet:
4.00
TSS removal efficiency:
90% (no filter is required)
Permanent Pool Elevation, FMSL:
6.00
Permitted Surface Area, ft2:
8,737 @Permanent Pool
Permitted Storage Volume, ft3-
11,752
Temporary Storage Elevation, FMSL:
7.20
Controlling Orifice:
1.5"cp pipe (drawdown in 2-5 days)
Permitted Forebay Volume, ft3:
4,353
3

State Storinwater Management Systems
Permit No. SNN,8 021023
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Jacksonville A -Storage Inn
Infiltration Trench
Permit Number:
SW8 021023
Locatiol7:
Onslow County
Applicant:
Mr. David Stainback
Mailing Address:
106 N. Marine Boulevard
Jacksonville, NC 28540
Application Date:
March *, 2003
Receiving Stream/River Basin/Index #:
Sandy Run Branch / White Oak / WOK02
19-10-1
Classification of Water Body:
"SC NSW"
Design Storm:.
2" (no vegetated filter is required)
Drainage Area, acres:
0.17
Onsite, ft2:.
0.17
Offsite, ft"
0
Total Impervious Surfaces, ft2:
7,296
Trench Dimensions, LxWxH, feet:
150' x 10.5' x 1.5'
Perforated Pipe Diameter 1 Length, feet:
12" / 600' (8 runs @ 75' each)
Bottom Elevation, FMSL:
15.60. -
Permitted Storage Volume, ft3:
1,228
Temporary Storage Elevation, FMSL:
17.10
Type of Soil:
SL, SCL
Expected Infiltration Rate:
1.0 inch per hour
Seasonal High Water Table:
13.4 FMSL
*Time to draw down:
18 hours
*Must draw down completely. within 5 days.
I

State Stormwater Management Systems
Permit No. SW8 021023
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 Nvill be repaired immediately.
3. The pennittee shall at all times provide the operation and maintenance necessary to assure
the permitted stormwater system functions at optimum efficiency. TF�e 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.
C. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader,
_ catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. 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.
8. 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 stor nwater
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.
5

State Storrilwater Management Systems
Pennit No. SWS 021023
10. The pernittee 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 facilities shall be granted in favor of the
pennittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The pernittee must maintain compliance with the proposed built -upon areas and drainage
areas. No additional runoff from outside of the permitted drainage area boundary may
enter the permitted stormwater facilities without first'applying for and receiving a permit
modification.
14. The Director may notify the permittee when the permitted. site does not meet one or more
- of the miniinuin 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
1. This permit is not transferable except after notice to and approval by the Director. In the
event there is a desire for the facilities to change ownership, or there is a name change of
the Pennittee, a formal permit transfer 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. The permittee is responsible
for compliance with all permit conditions until such time as the Director 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) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those
as may be required by this Division, such as the construction of additional or replacement
stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater
management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of
a request for a permit modification, revocation and reissuance or termination does not
stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater control
must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
6

State Stonmwater Management Systems
Permit No. S W8 021023
S. ApproN7ed 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, oNvnership or mailing address changes
within 30 days.
Permit issued this the 3Td day of April, 2003.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
7

State Stormwater Management Systems
Permit No. SW8 021023
.Jacksonville A -Storage Inn
Stormwater Perinit No. SNti8 021023
011S10N'1' COLEnty
Designer's Certification
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:
SEAL
Signature
Registration Number
Date

State Stormwater Management Systems
Permit No. SWS 021023
Certification Requirements:
l . 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
Onslow County Building Inspections
9

SE 01
Date Received Fee Paid Permit Number
I t0-21-oz Hud 3-253l ---400`Y /:r 5403 1 :5N JT 0 Z /0 2- -3
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
.-'.STORMWATER MANAGEMENT PERMIT APPL.1 CATION TORTM.
7Vs form may be photocopied for use as an or . iginal
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
2. Print D%vner/Sigy-d-ng Official's name and title (person legally responsible for facility and compliance);
David Stainback. owner
3. Mailing Address for person listed in item 2 above:
106 North Marine Blvd.
CitT. Jacksonville State. NC —Zip: 2B540
Telephone Number: La-1- f) 3 4 7-37 0 0 - -
.4. Froject Name (sub!division, facility, or esiablishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreem6,nts, etc.):
Jacksonville A— Storage Inn
5. Location of Project (street address):
HWY 17
CiT. Jacksonvi I I o County: Onslow
6. Directions to project (from nearest major intersection):
From intersection of Hwy 24 and HWY 17 take 17 North past
intersection witb Chaney Avenue,' cross- -Chaney Creek; project smote
on right next to Courts Plus.
7. Latitude: 34'-44'—N Longitude:_ 7 7 2 4 51 It ki of project
B. Contact person wh6 can answer questions about the project:
ect
Name: Gordon R- McAdams$ _ Telephone Number. (910 - ) 455-2414
II. PMMIT UFORMATIOM.
1. Specify whether project is (check one): X New Renewal —Modification
Form S1;VU-101 Version 3.99 Page I of 4

2. If this application is being:,-.,nitted as the result of a renewal or modification to an existing permit, list the
exisdng permit number and its issue date (if known)
3. Specify the type of project (check onQ):
Low Density X High Density. .—Redevelop General Permit —Other
4. Additional Project Requirements (&eck.applicablelblanks):
-
—LAMAMajor' X Sedim'er-itation/Erosion Control. 404/401 P6rn-Lit NPDES Stormw'a ter
Infor', rn-a-tio-H 6rfreq­ukid'sfate p�ts can be obtained V6ohtkt:Ln<r the 'c distome rService k . - . Center at
1-877-623-6748.
Ill. PROJECT INFORMATION
1. in the space provided below, sunuTorize-hmv 5to=vaterwill be treated. Also attach a detailed narrative
(one to two pages). describing stotrawater management for the project
Wet Detention Pond
2- Stormwa ter runoff from this project drains to the White Oak River ba5iri.
3. Total Project Area: 3.53 _acres 4. Project Built Upon Area: 63 %
5. How many drainage areas does the project have?- 2
6: Coinplete the followmg information foreach drainage area. If there are more than two draina-e areas' in the
-
sheet r" ea- 'provided project. attach an additional sh with thelrifo information fo� each a'r' in th6 sa�-fbm'iat asbelow.
(SMall - Parking.,.-,-.
tArea uraining Lo Yona) RI-ed dt- r.UQ11LJ
...............
JWhiInforrriatf
Receivinc, Strea� Name
0 Sandy Run Branch -Sandy-Run Branch
Receiving Stream Class SC NSW SC NSW
Drainage Area 3.53 AC. �0.17 AC.
E-dsting. Impervious' Area 0 0
Proposed Impervious Area 2 - 2 2 AQ. .0 - 17 A
% Impervious' Area (total) 63% .100%
........... ............................
Trm ous fkL;L'Afe­a ... ':`;
. .........
ea-......
......
............. ........
.... .......... ........
On -site Buildings
48 010 S.,F.
0
On -site Streets (Drives)
48,744 S.F.-
0
On -site Parking -
0
7296 SF
On --site Sidewalks
0
0
Other on -site
0
0
Off -site
0
0
ITotal.96,754 S.F.
Total:7296 S.F-or .17 Ac
apervfou5 area is deRned as the built upon area !hc1udL%z but not Rmfted to;buildings, roads, parking areas,
;sldew-alks, gravel areas, etc. or
2.22 AC.
FonuSNVU-101 Versicrn3.99 .1 .. . " Page 2 of 4

7. How was the off -site impervious area listed above derived? N / A
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 signilicarktly, 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 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 N / A 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 swimmingpools.
3. Swales shall not be idled 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 Iand, 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 S1NU-102
Wet Detention Basin Supplement
Form SVvU-103
Infiltration Basin Supplement
Form SWU-104
Law Density Supplement
Form SVt1U-I05 ,
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement
Form S1rVU-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

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 Iisted below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
I. 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'appliMtton 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/pr*c0mindary
Location map witli 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)
m
VII. AOENTAUTHORIZATION
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): Gordon R . McAdams, P.E. Parker & Associates
Mailing Address: P.O. Box 976
City: Jacksonville State: NC Zip: 28541
Phone: (910 ). 455--2414 _ Fax: ( 910 455-3441
Vill. APPLICANTS CERTIFICATION
I, (print or type name of person listed in General fnforTnation, item 2) David S t a i nba c k owner
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 .loon.
Date: 00 z
Form SWU-101 Version 399 — Page 4 of

A �t
Permit No.56a02102.3
(to be provided by D JVQJ
: 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 orig7inal
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 INF01UNIATION
Project Name: Jacksonville A -Storage Inn
Contact Person. Gordon R . McAdams, P.E. Phone Number. (91 0 � 4 5 5 - 2 41 4
For projects with multiple basins, specify which basin this worksheet applies to: 1
elevations
Basin Bottom Elevation 2.0 ft. (floor of the basin)
Permanent Pool Elevation 6.0 ft. (elevation of the orifice)
Temporary Pool Elevation 7.2 ft. (elevation of the discharge structure overflotiv)
areas 673-7 (p, ovJed) .
Permanent Pool Surface Area _ .9472 sq. ft. (water surface area at the orifice elevation)
Drainage Area 3.53 ac. (on -site and off -site drainage to the basin)
Impervious Area 2.22 ac. (on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
Other parameters
SA/DA i
Diameter of Orifice
Design Rainfall
Design-TSS Removal ?
21 , 501
cu. ft. (combined volume of main basin and forebay)
11 , 7 5 2 _ _ cu. ft. (volume detained above the permanent pool)
—4 , 3 5 3 _ - cu,. ft. (appr6Ximately 20% of total volume)
5 . 51 % (surface area to drainage area ratio from DWQ table)
1 .5 in. (2 to 5 day temporary pool draw -down required)
1 in.
90 % (minimum 85%required)
Form SWU-102 Rev 3.99 Page 1 of 4

Footnotes:
t 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 8MP 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
6 R ", a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
G_'L"N _ _ b. The forebay volume is approximately equal to 20% of the basin volume.
GR^` c. The temporary pool controls runoff from the design storm event.
G A `'
d.
The temporary pool draws down in 2 to 5 days.
N / A
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.
Gam^
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).
G �Z �
i.
Vegetative cover above the permanent pool elevation is specified.
G4^,
j.
A trash rack or similar device is provided for both the overflow and orifice.
N / A
k.
A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
G` A%
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.
G A"` m. A mechanism is specified which will drain the basin for maintenance or an emergency.
111. 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 6tdoes not incorporate a vegetated filter at the outlet.
This system (check one) 0 does R does not incorporate pretreatment other than a forebay.
Farm S WU-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 Ieast 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 3.0 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 2.2 5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 6 . 0
Sediment Re oval El. 3 • 7 5 75 0
______________ __ Sediment Removal Elevation 3 ' 75%
Bottom Ele ation 3 _ 0 ova ---------------------------------------------
Bottom
Elevation 2 . 0 125%
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 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: David' Stainhack
Title: Owner
Address: 106 North Marine Blvd, Jacksonville, NC 28540
Phone: [phone]
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.
IyaabohA. Herndon , a Notary Public for the State of dLaL►'?-4
County of do hereby certify that T&v i4 4. ` Q l
personally appeared before me this day of C)(I In A, �-OD1, and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
T .O"
A
'• � '• UBL�G '� v
i
' .OW COUN�.•'�
My commission expires
SEAL
jqG=n�,,Wn f ires AUO.17, 2003
Form SWU-102 Rev 3.99 Page 4 of
©izabeth A. Herndon

i;

Permit No. :56OC G Z102-5
(to be provided by DWQJ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: Jacksonville A Storage Inn
Contact Person: Gordon R. McAdams, P.E. Phone Number: 910 455-2414
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench 1 in Drainage Area 2
(Prom plans) (from Form SWU-101)
1I. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type *SL, SCL *(See attached description on soils report)
Infiltration Rate 1.0 tn/h or cf/hr/sf (circle appropriate units)
SHWT Elevation _ 1 3 __4 ± fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume 1221
c.f.
Design Storm 2.0 inch event (1.5 inch event for Sit waters, I inch event for others)
Drawdown Time 18 -&3YE;- hours
Perforated Pipe Size 12 inch. diameter
Perforated Pipe Length 42 1 5 0 ft. L Ac H
No. Observation Wells �N / A (may be required on a case -by -case basis)
Stone Type (if used) # 5 7
Stone Void Ratio 4 0 %
Trench Elevations (in feet mean sea level)
Bottom Elevation 15.6 fmsl
Storage/Overflow Elevation 17.1 ftnsl
Form S WU-i 07 Rev 3.99 Page I of 4

Trench Dimensions
Height 1 .5 ft. Length 1 5 0 ft.
Width 1 0 . 5 ft. Volume Provided 1221 cu.ft.
Ill. 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, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
G
b. System is located at least 100 feet from water supply wells.
G/2
c. Bottom of system is at least 2 feet above the seasonal high water table.
G 4A­
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
*NO 6A-
e. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
G
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
g. Soils have a minimum hydraulic conductivity of0.52 inches per hour.
h ^ "
b. System is not sited on or in fill material or DWQ approval has been obtained.
Gti'—
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
G^-'
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
**NIA
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
Gti�
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
G 4 ~
m. Drainage area for the device is less than 5 acres.
G ^-
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
G
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
G'Q-,
p. Sides of the infiltration trench are lined with geotextile fabric.
q. Rock used is free of fines (washed stone) and has a large void ratio.
r. Side to bottom area ratio is less than 4: 1.
Form SWU-107 Rev 3.99 Page 2 of 4
**Located on Jacksonville A Storage Inn property,
* 2.0 Inch Design Storm Used

0
0

NO G,.-- s. Observation well(s) are provided (case -by -case basis).
G A-- t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
6A" u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFII,TRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a I inch rainfall event and at least once a month.
Chronic high water table elevations (within I foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 16.1 Ft the accumulated sediment shall be removed
from the system.
Form SWU-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six maintenance procedures listed above. I agree to notify DWQ
of any problems with the system or prior to any changes to the system or responsible party.
Print Name and Title: David A. Stainback, Owner
Address: 106 North Marine .Blvd. , Jacksonville, NC 28540 .
Phone: [phone] Date: .1 0/01 /02
S
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, L : 1 C? JO 1 V-V 0_.(%� , a Notary Public for the State of Ot h a ro /j nQ , County of
✓1A.QJ4LCT , do hereby certify that J�Q vT d 5IQ i o bac K personally appeared before me this _
day of Z��1 and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seat,
\`��A �,1
Tq,��;•.
PUB, JO .� My commission expires- • 3 D(00(12
XV
f�t1lfli;itt`,;1•�`�
Form SWU-107 Rev 3.99 Page 4 of 4