SW8080820_Current Permit_20080904

State Stormwater Management Systems
Permit No. SW8 080820
September 4, 2008
Ronald Saucier, Owner
165 Vision Drive
Wilmington, NC 28403
Subject: Stormwater Permit No. SW8 080820
Southeastern Pre -School Center (S.P.E.C.) - Burton Industrial Park
High Density Project
Onslow County
Dear Mr. Saucier:
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Southeastern Pre -School Center (S.P.E.C.) - Burton Industrial Park on
August 12, 2008. 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 080820 dated September 4,
2008, for the construction of the subject project.
This permit shall be effective from the date of issuance until September 4, 2018, 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 Chris Baker, or me at [phone].
Sincerely,
Edward Beck
Regional Supervisor
Surface Water Protection Section
ENB/csb: S:IWQSISTORMWATERIPERMIT1080820.sep08
cc: David K. Newsom. P.E., Crystal Coast Engineering
Onslow County Building Inspections
Chris Baker
Wilmington Regional Office
Central Files
Page 1 of 7

State Stormwater Management Systems
Permit No. SW8 080820
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
Ronald Saucier
Southeastern Pre -School Center (S.P.E.C.) - Burton industrial Park
North West Corridor Boulevard, Onslow 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.
This permit shall be effective from the date of issuance until September 4, 2018, 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 101,290 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 5,000 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 2 of 7

State Stormwater Management Systems
Permit No. SW8 080820
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, acres:
Onsite, ft
Offsite, ft2:
b. Total Impervious Surfaces, ftz:
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:
!. Fountain Horsepower, IMP
M. Receiving Stream/River Basin:
n. Stream Index Number:
o. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
5.45
237,385
None
101,290
1.5
7 (3.37 avg)
90
32
11,026
13,341
33.07
1.5"0 pipe
8,110
1/8
UT to the New River / New River
19-(1)
"C;NSW"
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 time 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 re -vegetation 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.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 080820
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 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 failing 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 1/8 horsepower.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become void 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. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
10. 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.
11, The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
12. 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 4 of 7

State Stormwater Management Systems
Permit No. SW8 080820
13. 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 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 re -issuance 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 4th day of September, 2008.
N07P4"CAROLINA aEIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 080820
Southeastern Pre -School Center (S.P.E.C.) - Burton Industrial Park
Stormwater Permit No. SW8 080820
Onsiow County
Designer's Certification
I, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 080820
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 buiit-upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of tho system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Onslow County Building Inspections
Page 7 of 7

� $ N •A
So
-
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):
:Q Ronald Saucier
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Ronald Saucier
3. Mailing Address for person listed in item 2 above:
165 Vision Drive
City:WilmingLon State•NC Zip12S5 0 2,-9 40 �
Phone: (910 ) 617-7251 Fax: ( ) n/a
Email:n/ a
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Southeastern Pre -School Education Center (S.P.E.C.) - Burton Industrial Park
5. Location of Project (street address):
Burton Industrial Park
City:Jacksonville, Township County:Onslow Zi
6. Directions to project (from nearest major intersection): 2 a
From intersection of NC 24 and NC 58 west of Tacksonville west on NC 24 approximately 2 8 miles to N.W.
Corridor Blvd., right on N.W. Corridor Blvd to K. B. Hurst Court site on left
7. Latitude:34° 47' 11.7" N Longitude:77° 29' 35.3" W of project
8. Contact person who can answer questions about the project:
Name:David K. Newsom
Telephone Number: (910 ) 325-0006
Email:crystalcoasteng®bizec.rr.com
II. PERMIT INFORMATION:
1. Specify whether project is (check one): ®New []Renewal ❑Modification
2. If this application is being submitted as the result of a renewal or modification to an existing ermit, list the
existing permit numbernn/a and its issue date (if known)n a
3. Specify the type of project (check one):
[]Low Density ®High Density []Redevelop ❑General Permit [-]Universal SNIP ❑Other
Form SWU-101 Version 03.27.08 Page 1 of

4. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ®NPDES Stormwater
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.
Stormwater will be collected and conveyed to a wet detention pond
2. Stormwater runoff from this project drains to the New River River basin.
3. Total Property Area:11.03 Ac acres 4. Total Wetlands Area: 0.35 Ac acres
5. 100' Wide Strip of Wetland Area: 0 acres (not applicable if no wetlands exist on site)
6. Total Project Area**: 10.68 Ac acres
8. How many drainage areas does the project have?1
0
7. Project Built Upon Area: 21.8% %
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.
For high densi ro'ects, coin lete the table with one drainage area for each engineered stormwater device.
Basin Information
Drainage Area I
Drainage Area
Receiving Stream Name
UT New lUver
Stream Class & Index No.
--(l
Total Drainage Area s
s
-site Drainage Area s
s
Off -site Drainage Area s
-0-
Existing Impervious Area (sf)
-0-
Proposed Impervious Area (sf)
101,290 s
% Impervious Area (total)
42.67%
Impervious Surface Area
_-MaRnage A a 1
Drainage Area
-site Buildings s
s
-site treets s
-site Parking s
s
-site Sidewalks (sf)s
Other on -site s
s(future reserve
Off -site Ism
TotaF7M.7s
impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
**Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation. This is the area used to calculate percent project built upon area (BETA).
10. Flow was the off -site impervious area listed above derived?.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following 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
Form SWTJ-101 Version 03.27.08 Page 2 of 4

number, size and the allowable built -upon area for each lot must be provided as an attachment. Forms can be
downloaded from http://h2o.enr.state.nc.us/su/bml2 forms.htm - deed restrictions.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the applicable items required in the above form, 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. Forms can be downloaded from htt2://h2o.enr.state.nc.us/su/bml2 forms.htm.
Form SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration Trench Supplement
Form SW401-Bioretention Cell
Bioretention Cell Supplement
Form SW401-Level Spreader
Level Spreader/Filter Strip/Restored Riparian
Form SW401-Wetland
Constructed Wetland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SW401-Permeable Pavement
Permeable Pavement Supplement
Buffer Supplement
Form SWU-101 Version 03.27.08 Page 3 of 4

SUBMITTAL REQUIREMENTS
Jnly 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 Office. (Appropriate office may be found by locating project on the
interactive online map at http://h2o.enr.state.nc.us/su/msi mus.htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
rtexe to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• OriginaI and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable toNCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report
• Two copies of plans and sppecifications (sealed, signed & dated), including:
- Developmentgoject name
- Engineer and firm
-Legend
- North arrow °
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
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. (ex. designing engineer or firm)
Designated agent (individual or firm):David K. Newsom
Mailing Address:3817-3 Freedom Way
City:Hubert, NC State:NC Zip:28539
Phone: [phone] Fax: (910 ) 325-0060
Email:crystalcoasteng®bizec.rr.com _
. VM. APPLICANT'S CERTIFICATION
I, (print or ftjpe name of person listed in General Information, item 2) __ _ Ronald E. Saucier, 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 plaits, that the required deed restrictions
and protective covenants will be reco ded, and that the proposed project complies with the requirements of 15A
NCAC 2H .100 .
Signatu 7Date• oCd t�d
ti AUG -
;
11 2CJ VU t.
Form SWU-101 Version 03.27.08 Page 4 of 4

Permit No k �V O �(�a to
(to be provided by DWQ)
A1,0*"' ?R�� OF W ATF9
_ P
NCDENR ' rEZ
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out printed and submitted.
The Required Items Checklist (Part lll) must be printed, filled out and submitted along with all of the required information.
L PROJECT DFORKATMN
Project name Southeastern Pre -School. Education Center (S P E C.)
Contact person David K. Newsom, Crystal Coast Engmeenng, PA
Phone number [phone]
Date 1-Jul-08
Drainage area number 1 and only
. Do t NOMMATION
Site Characteristics
Drainage area
237,385.00
fe
Impervious area
101,290.00
fe
% impervious
42.67
%
Design rainfall depth
1.50
in
Storage Volume: Non -SR Waters
Minimum volume required
12,879,00
fe
Volume provided
13,341.00
ft
Storage Volume: SR Waters
1-yr, 24-hr runoff depth
in
Pre -development 1-yr, 24-hr runoff
ft3
Post -development 1-yr, 24-hr runoff
ft3
Minimum volume required
ft3
Volume provided
ft3
Peak Flow Calculations
1-yr, 24-hr rainfall depth
3.65
in
Rational C, pre -development
0.15
(unitiess)
Rational C, post -development
0.43
(unitless)
Rainfall intensity: 1 -yr, 24-hr storm
0.15
in/hr
Pre -development 1-yr, 24-hr peak flow
012
ft3lsec
Post -development 1-yr, 24-hr peak flow
0.35
0sec
PrelPost 1-yr, 24-hr peak flow control
0.23
fe/sec
Basin Elevations
Basin bottom elevation
24.00
ft
Sediment cleanout elevation
25.00
ft
Bottom of shelf elevation
31.50
ft
Permanent pool elevation
32.00
ft
SHWT elevation
32.00
ft
Top of shelf elevation
32.50
ft
Temporary pool elevation
33.07
ft
Form SW401-Wet Detention Basin-Rev.4 Parts I. & It. Design Summary, Page 1 of 2

Permit No.
(to be provided by DVVQ)
N. DESIGN RHUMTM
Volume and Surface Area Calculations
SAIDA ratio
4.40
(unitless)
Surface area at the bottom of shelf
6,700.00
if
Volume at the bottom of shelf '
25,171.00
fta
Permanent pool, surface area required
10,545.00
fe
Permanent pool, surface area provided
11,026.00
fe
OK
Permanent pool volume
37,189 00
fe
Average depth for SAIDA tables
3.37
ft
OK
Surface area at the top of shelf
10,745.00
fe
Volume at the top of shelf
33,893.00
ft3
Forebay volume
8,110.00
ft'
Forebay % of permanent pool volume
21.81
%
OK
Temporary pool, surface area provided
1.3,911.00
fe
Drewdown Calculations
Treatment volume drawdown time
4.42
days
OK
Treatment volume discharge rate
0.04
fees
Pre -development 1-yr, 24-hr discharge
0.12
fels
OK
Post -development 1-yr, 24-hr discharge
004
els
OK
Additional Information
Diameter of orifice
1.5
in
Design TSS removal
90
%
Basin side slopes
3.00
:1
OK
Vegetated shelf slope
1000
:1
OK
Vegetated shelf width
10.00
ft
OK
Length of flowpath to width ratio
3.00
:1
OK
Length to width ratio
3.00
:1
OK
Trash rack for overflow & orifice?
y
(Y or N)
OK
Freeboard provided
1.00
ft
OK
Vegetated filter provided?
n
(Y or N)
Design must be based on 90% TSS removal
Recorded drainage easement provided?
y
(Y or N)
OK
Capures all runoff at ultimate build -out?
y
(Y or N)
OK
Drain mechanism for maintenance or emergencies
pump
Form SW401-Wet Detention Basin-Rev.4 Parts I. & II. Design Summary, Page 2 of 2

Permit Number: �(J i e V, -4IJ a?O
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
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 ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How will remediate the roblem:
The entire BMP
Trash debris is present.
_I
Remove the trash/debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application,
Vegetation is too short or too
Maintain vegetation at a height of
long.
L--aro im tel si: inches.
Form SW401-Wet Detention Basin O&M-Rev.3
AUG I I LOW
�C �� _ — ,
nnr
a
Page 1 of 4

Permit Number: ..,�57Gt/ v v fy rdZ9
(to be provided by DWQ)
Drainage Area Number:
BMP element: Potential problem:
The inlet device: pipe or i The pipe is clogged.
swale
The pipe is cracked or
otherwise damaged.
Erosion is occurring in the
swale.
The forebay Sediment has accumulated to
a depth greater than the
original design depth for
sediment storage.
The vegetated shelf
The main treatment area
Erosion has occurred.
Weeds are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Weeds are present.
Sediment has accumulated to
a depth greater than the
original design sediment
storage depth.
Algal growth covers over
50% of the area.
Cattails, phragmites or other
invasive plants cover 50% of
the basin surface.
How I will remediate the probl
Unclog the pipe. Dispose of the
sediment off -site.
,Replace the pipe.
Regrade the Swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Prune according to best professional
practices
Determine the source of the
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the B.M.F.
Consult a professional to remove
and control the algal growth.
Remove the plants by wiping them
with pesticide (do not spray).
Form SW401-Wet Detention Basin O&M-Rev.3
fYl AUG 1 1 2008
DW4
Page 2 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
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 7.00 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 7.0_ feet in the forebay, the sediment
shall be removed.
BASIN DIAGRAM
011 in the blanks)
Permanent Pool Elevation 32.00
Sediment Removal . 25.00 Pe en Pool
- - - - - - - - - - - - - - - - Volume Sediment Removal Elevation 25.00 Volume
BottomElevatio 24.00 -ftMin. -------------------------------------
t
t Bottom Elevation 24.00 "ia
Storage Sedimer
FOREBAY MAIN POND Storage
Form SW40i-Wet Detention Basin O&M-Rev.3
E 11''
AUG 1 12008 Page 3 of 4
rRoj ----- ...,

X"
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the 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.
Project name:Southeastern Pre -School Education Center S.P.E.C.) Burton Industrial Par
BALP drainage area number:
Print
Title
Address:165 Vision Dr. Wilmington, NC 28403
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.
19 1, J`e/](0 RU 11CICIL T, a Notary Public for the State of
, County of UYl S 10t,4j , do hereby certify that
W � c, u d, i e r— personally appeared before me this. f7—
day of and acknowledge the due execution of the
forgoing wet Yetention basin maintenance requirements. Witness my hand and official
seal,
0TgRyc� ;
0�0UN,t��\\,.
SEAL
My commission expire� rJAW
W r
R E k1r. E({ , i ... DD
AUG 1 1 2008
Form SW401-Wet Detention Basin O&M-Rev.3 Page 4 of 4
Did Q
PROJ #