SW8051217_CURRENT PERMIT_20140321

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 OS121-1
DOC TYPE
N CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2Q Vy 03 2
YYYYMMDD
r

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Stormwater Section
Tracy E. Davis, PE, CPM Pat McCrory, Governor
Director John E. Skvarta, III, Secretary
March 21.2014
Tim Markley, Supedritendant
New Hanover County Schools
6410 Carolina Beach Road
Wilmington, NC 28412
Subject: State Stormwater Management Permit No. SW8 051217
Ogden Elementary School
High Density Commercial Wet Detention Pond Project
New Hanover County
Dear Mr. Markley:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Ogden
Elementary School on March 20, 2014. 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 21-1.1000 and Session Law
2008-211. We are forwarding Permit No. SW8 051217 dated March 21, 2014, for the construction, operation and
maintenance of the BMP's and built -upon areas associated with the subject project.
This permit shall be effective from the date of issuance until February 13, 2020, and shall be subject to the conditions
and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the
Operation and Maintenance of the BMP(s), recordation of deed restrictions, certification of the BMP's, procedures for
changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for
operation and maintenance of the stormwater management system, to record deed restrictions, to certify the BMP's,
to transfer the permit, or to renew the permit, 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 by filing a written petition with the Office of Administrative Hearings (OAH). The written petition
must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty
(30) days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee (if a filing
fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via
telephone at 919-431-3000, or visit their website at www.NCOAH.com. 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, at (910)
796-7215.
Si4ely,
or Tracy Dav , P. E., Director
Division of Energy, Mineral and Land Resources
GDS/ csb: G:1WQS1Stonnwater\Pennits & Projects120051051217 HD12014 03 permit 051217
cc: Jeffery Moore, P. E.,
New Hanover County Building Inspections
New Hanover County Engineering
Wilmington Regional Office Stormwater File
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 Phone: [phone] / Fax: [phone]

State Stormwater Management Systems
Permit No. SW8 051217
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL 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
New Hanover County Schools
Ogden Elementary
3637 Middle Sound Loop Road, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of three (3) infiltration basins in compliance
with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter
collectively and separately 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 Energy, Mineral and Land
Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until February 13, 2020, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.8 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 174,084 square feet of
impervious area.
3. This basin must be operated with a 30' vegetated filter, designed to pass the
peak flow from the 10 year storm in a diffuse and non -erosive manner.
4. The tract will be limited to the amount of built -upon area indicated in Section 1.8
on page 3 of this permit, and as shown on the approved plans.
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.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 051217
6. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
7. The project shall provide a 50' wide vegetated buffer adjacent surface waters,
measured horizontally from and perpendicular to the normal pool of impounded
structures, the top of bank of both sides of streams and rivers, and the mean high
water line of tidal waters.
8. The following design criteria have been permitted for the infiltration basin and
must be provided and maintained at design condition:
a. Drainage Area, acres:
Onsite, ft`:
Offsite, ft`:
b. Total Impervious Surfaces, ft':
Onsite, ft':
Offsite, ft`:
c. Design Storm, inches:
d. Basin Depth, feet:
e. Bottom Elevation, FMSL:
f. Bottom Surface Area, ft2:
g. Bypass Weir Elevation, FMSL:
h. Permitted Storage Volume, ft':
i. Predevelopment 1 yr 24 hr peak flow, cfs:
j. Post -development 1 yr 24 hr peak flow, cfs:
k. Type of Soil:
I. Expected Infiltration Rate, in/hr:
m. Seasonal High Water Table, FMSL:
n. Time to Draw Down, hours:
o. Receiving Stream/River Basin:
p. Classification of Water Body:
cl. Stream Index Number:
DA -131
DA-62
DA-C
2.24
3.17
1.59
97,574
138,085
69,360
N/A
N/A
N/A
62,320
54,869
51,030
62,320
54,869
51,030
N/A
N/A
N/A
1.5
1.5
1.5
20.
2.0
2.0
28.0
29.0
29.4
3,395
4,830
3,590
30.0
30.5
30.5
7,675
8,265
6,765
N/A
N/A
N/A
N/A
N/A
N/A
Seagate
12.0
12.0
12.0
26.0
27.0
27.4
<3
<10
<7
Howe Creek / Cape
Fear
SA;ORW
18-87-23
Drainage area D consists of 9,355 square feet of drainage area and 5,865
square feet of impervious surfaces. The imperious surfaces in this area is for the
multi use lane and will be treated via sheet flow and treatment Swale filtration as
shown on the approved plans.
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 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.
4. 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.
5. 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 3 of 7

State Stormwater Management Systems
Permit No. SW8 051217
6. 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 bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
7. Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
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.
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 development, subdivision, acquisition, lease or sale of any, 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. 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.
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 051217
III. GENERAL CONDITIONS
1. Approved plans and specifications for this project are incorporated by reference and
are enforceable parts of the permit.
2. This permit is not transferable to any person or entity except after notice to and
approval by the Director. At least 30 days prior to a change of ownership, or a name
change of the project or of the permittee or a mailing address change, the permittee
shall submit a completed and signed Name/Ownership Change form to the Division
of Energy, Mineral and Land Resources, accompanied by the appropriate
documentation as listed on the form. The approval of this request will be considered
on its merits and may or may not be approved.
3. The permittee is responsible for compliance with all permit conditions until such time
as the Division approves the transfer request. Neither the sale of the project in whole
or in part, nor the conveyance of common area to a third party shall constitute an
approved transfer request.
4. Failure to abide by the conditions and limitations contained in this permit may subject
the Permittee to enforcement action by the Division of Energy, Mineral and Land
Resources, in accordance with North Carolina General Statute 143-215.6A to 143-
215.6C.
5. 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.
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.
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.
The permit issued shall continue in force and effect until revoked or terminated. 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.
Unless specified elsewhere, permanent seeding requirements for the stormwater
controls must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit as
allowed by the laws, rules and regulations contained in Session Law 2008-211, Title
15A NCAC 2H.1000, and NCGS 143-215.1 et. al.
11. The permittee shall submit a permit renewal application at least 180 days prior to the
expiration date of this permit. The renewal request must include the appropriate
documentation and the processing fee.
Permit issued this the 21 st day of March, 2014.
NO H CAROLINA ENWRQN NTAL MANAGEMENT COMMISSION
{or 11racy QAvis, P. E., Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 051217
gden Elementary School
Stormwater Permit No. SW8 051217
New Hanover 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 051217
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the 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 the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DEMLR Regional Office
New Hanover County Building Inspections
Page 7 of 7

';, t R�
r� ,,.. , , •
" ;. ,
.. .: .DEMLUSE'.ONLY .:.;t
, ; ,c;
Date Received
Fee Paid
Permit Number
_ 7
O G1-7
-37
Applicable Rules:
❑ Coastal SW -1995 ❑ Coastal SW - 2008
❑ Ph lI - Post Construction
(select all that apply)
❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fonn nuay be photocopier) for use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Ogden Elementary School
2. Location of Project (street address):
3637 Middle Sound Loop Road
City:Wilmington County:New Hanover Zip:28412
3. Directions to project (from nearest major intersection):
From the intersection of US Hwy 74 and US Hwy 17 head northeast on US hwy 17 (Market St) 3.1 miles and
turn right on Middle Sound Loop Road 0.6 miles to Ogden Elementary School
4. Latitude:34° 16' 00" N Longitude:77° 49' 15" W of the main entrance to the project.
it. PERMIT INFORMATION:
1.a.Specify whether project is (check one): ❑New ®Modification ❑ Renewal w/ Modificationt
tRenn,als:oith modifications also requires SWU-102 - Renaval Application Fornr
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW8 051217 , its issue date (if known)08/22/08 and the status of
construction: []Not Started ❑Partially Completed* ® Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System []Other
3. If this application is being submitted as the result of a previously returned application or a letter from
DEMLR requesting a state stormwater management permit application, list the stormwater project number,
if assigned, and the previous name of the project, if different than currently
proposed,
4. a. 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):
❑CAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 2 ac of Disturbed Area
❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
5., Is the project located within 5 miles of a public airport?
If yes, see S.L. 2012-200, Part Vl: htto://oortal.ncdenr.g1g&
:C'E,IVE
FES 10 20%
Form SWU-101 Version Oct. 31, 2013 Page I of 6

IIL CONTACT INFORMATION
I. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/Organization:New Hanover County Schools
Signing Official & Title:Dr. Tim Markley S i tr ✓ i h { a ti't
b.Contact information for person listed in item I above:
Street Address:6410 Carolina Beach Road
City:Wilmington State:NC Zip:28412
Mailing Address (if applicable):Same as Above
City: State: Zip:
Phone: (919 ) 254-4282 Fax: ( )
Email: }'tm,markkeg tvn(cs.nek
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b.Contact information for person listed in item 2a above:
Street Address:
City: State: Zip:
Mailing Address (if applicable):
City: State: Zip:
Phone: ( ) Fax: ( )
Email:
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/ Organization: Karyn Crichton/New Hanover County Planning & Inspections
Signing Official & Title:Tim Burgess, Assistant County Manager
b.Contact information for person listed in item 3a above:
Mailing Address:230 Government Center Drive, Suite 110
City:Wilmington State:NC Zip:28403
Phone: (910 ) 798-7085 Fax: (910 ) 798-7053
Email:[e-mail]
4. Local jurisdiction for building permits:
Point of ContactN/A
BY:
Form SWU-101 Version 06Aug2012 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater runoff from the Middle Sound Greenway project within the Ogden Elementary School property
will drain offsite and be treated through the use of grass filter strips and vegetated conveyance swales. The
remainder of the site will be treated through infiltration basins (see original design calculations from CLH
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area:10.47 acres
5. Total Coastal Wetlands Area: 0.35 acres
6. Total Surface Water Area: 0 acres
7. Total Properly Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area*:10.12 acres
Total project area shall be calculated to exclude the following: the normal paol of imyyou��nded structures, the area
between the banks of streams and rivers, the area below the Normal Hi h Water (NHw) line or Mean High Water
(MI-i[M line, and coastal wetlands landward f�rrom the NHW (or MHI� line. The resultant project area is used to
calculate overall percent built upon area (BR). Non -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 39.1 %
9. How many drainage areas does the project have73 (For high density, count 1 for each proposed engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below. # #
InYfT ivk.e{ yy'Vq Si=.
Receiving Stream Name
@ i�edi iia
Howe Creek
�ili4W^n
•m C£.0 ku�iitia
@ilie511?
Howe Creek
Howe Creek
Howe Creek
Stream Class "
SA; ORW
SA; ORW
SA; ORW
SA; ORW
Stream Index Number •
18-87-23
18-87-23
18-87-23
18-87-23
Total Drainage Area (so
97,574 (2.24 ac)
138,085 (3.17 ac)
69,360 (1,59 ac)
9,355 (0.21 ac)
On -site Drainage Area (sf)
97,574
138,085
69,360
9,355
Off -site Drainage Area (sf)
0
0
0
0
Proposed Impervious Area" (so
62,320
54,869
51,030
5,865
% Impervious Area" (total
63.8
39.8
73.6
62.7
' M.N
lij3taifla �Wre i '
pip" '. :A A,`1..,7' u
On -site Buildings/Lots (sf)
29,955
14,220
13,820
0
On -site Streets (so
0
0
0
635
On -site Parking (so
26,010
25,540
28,525
0
On -site Sidewalks (so
6,355
8,979
5,605
2,050
Other on -site (so
0
6,130
3,080
2,370
Future (so
0
0
0
0
Off -site (so
0
0
0
0
Existing BUA*"* (so
0
0
0
810
Total (so:
62,320
54,869
51,030
5,865
" Stream Class and Index Number can be determined at: htty://yortal.ncdenr.orghveb/wgIp,�Icstdclassificatlons
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
## Drainage Area "D" represents the Middle Sound Greenway Project within the permanent greenway easement
Form SWU-101 Version Oct. 31, 2013 Page 3 of 6

** Report only that anotntt of existing BUA that toil/ remain after development. Do not report may existing BUA that
is to be reproved and tohich Will be replaced by new BLIA.
11. How was the off -site impervious area listed above determined? Provide documentation. N/A
Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed than may be subject to more stringent stormwater requirements as per 15A NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from http://portal.ncdenr.org/web/wq/ws/su/bap-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available fromhttp://portal.ncdenr.org/web/wg/ws/su/statesw/forms does. Thecomplete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/so/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http://portal.ncdenr.org/web/wg/ws/su/statesw/forms does.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form. <5wlk
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part Vll below)
3. Original of the applicable Supplement Form(s) (scaled, signed and dated) and O&M F(�A
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to J'WM
http://www.envlielp.org/pages/onestopexpress.litml for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor ; WM
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the (�W M
receiving stream drains to class SA waters within'h mile of the site boundary, include the'/z
mile radius on the map.
7. Sealed, signed and dated calculations (one copy). yym
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: SbJIV
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines. �= �\ 9
I' a
• Delineate the vegetated buffer landward from the normal pool elevation oft d i1Q
structures, the banks of streams or rivers, and the MFIW (or NHW) of tidal'wat�r 8 1 O #)A 4
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all 13UA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished Floor elevations -By;
1. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
Form S WU-101 Version 06Aug2012 Page 4 of 6

91
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
Copy of any applicable soils report with the associated SHWT elevations (Please identify _ rf)%r
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifj the SHWT prior
to submittal, [phone].)
A copy of the most current property deed. Deed book: 600 Page No: 582 tJ JA
For corporations and limited liability corporations (LLC): Provide documentation from the NC Pj Ja
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 21-1.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http://www.secretary.state.iic.us/Corporations/CSearch.aspx
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 NC DWQ, and that they will be recorded prior to the sale of any lot.
Vlll. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer:leff Moore
Consulting Firm: Kimley-Horn and Associates, Inc
Mailing Address:3001 Weston Parkway
City:Cary State:NC Zip:27513
Phone: [phone]
Email:ieff.nmoore nOkimley-horn.com
Fax: (919 ) 677-2050
IX. PROPERTY OWNER AUTHORIZATION (if Con tact Information, item 2 tins been filled out, complete this
section)
I, (print or type mane of person listed in Contact Information, item 2a) certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item In) with (print or type narue of organization listed in
Contact Information, item la) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SWU-101 Version 06Aug2012
RECEI U
FEB 10 2014
Page 5 of 6 b�:

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signatu
before me this
a Notary Public for the State of
do hereby certify that
day of
Date:
County of
personally appeared
and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission
X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item la) Dr. Tim Markleu
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 the
applicable stormwater rules under
15A NCAC 2H .1000 and any other applicable state stormwater requirements.
Signature: /1 e / Date: !'/tr I7
v
I, Der-Ni5G Ar'leV i ME a Notary Public for the State of No!4E CarDlino , County of
�Lls7 �it}L1Wer , do hereby certify that "I im{ V (l lrk�It _ personally appeared
before me this Ce_ day of �%Anyy a Viy , and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal, —1 n rA 2 LZP t/ T�1 �1
E
O� N0Tq� F
CONMI M1r y
_t 'S'111 P�RfS
A c
G GQLIG c
SEAL
My commission expires i { 1 5/ao, y
FEB�jj,ECEIVE
10 20%
Form SWU-101 Version 06Aug2012 page 6 of 6

Permit No. SW oslZP-
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM.
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stonnwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : n C--t>ta1�1 lz—_�L—
ContactPerson: Phone Number: (.c 100 319- U-1 l
This worksheet applies to: Basin No. T� a- in Drainage Area
(= identified on plans) (from Form SWU-101)
H. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fusl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
1 2 . o in/hr or cf/hr/sf (circle appropriate units)
Z (0 . U fmsl (Seasonal High Water Table elevation)
. 5 inch (1.5 inch event for SA waters, I inch event for others)
f ' G2�GS
T (o IS c.f.
O .0 q days
ft. x . t45 ft.
—110-15 c.f.
29.O fms]
30 . o fmsl
32.0 frnsl
33g5
sq. R. (bottom dimensions)
Form SWU-103 Rev 3.99
Page 1 of 3

III. 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 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
CZS a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
izS b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
�ZS d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
S e. System is not sited on or in fill material or DWQ approval has been obtained.
{ZS f. 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.
jzS g. Drainage area for the device is less than 5 acres.
S h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
}�S i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
F-ZD 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. Calculations attached.
(z S k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H: V).
r=S 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
�z S o.
Flow distribution mechanism within the basin is provided.
_�� p.
A benchmark is provided to determine the sediment accumulation in the pretreatment device.
�5 q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
S r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s.
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.
Form SWU-103 Rev 3.99 Page 2 of 3

vvnnu d. IVVCKJVIV UVVU- Infiltration Basin Suplement,pdf - """"' T—"-"—T-' m'
��.. Page 1
IV. 1NP11: rRATION 13ASIN OPERATION .AND MAINTENANCEACREE:w ENT
I. After every runull'producing naintSlI event and at Icatt monthly inspect the inf il[rutinn system forerosion.
trash accumulation,
ccuulation, vegetative cover. and general condition.
Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover le maintain a maximum height of six inches, and remove trash as needed.
J. After every runoll'producing rainfall event and at least nionth1v inspect the bypass. inflow and ever`.lcov
stmcuves for blockage and detetio:vion. Remove any blockage and repair the snmncmre to approved decier.
specifications.
4. Remove accumulated sediment From the pretreatment system and infiltration basin annually or when depth
in the pretreaunent unit is reduced to 75"4, of the original design depth. 'rhe system shall he restored to the
original design depth without over -excavating. Over-e.xenvating ntav cause [lie required water table
separation to.be reduced and nay ennhpromise 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 pretreatnic it unit. The benchmark will document the original
design depth so Ihat accurate sedinent accumulation readings call be taken. 'rhe nieasuing device used to
(Iatennine the depth at the henchmenk shall be such that irwill give an accurate depth. reading and not
readily penetrate into accumulated sediments.
When the design depth reads C).S feet in the pretreatment unit. the sediment shall he
removed prom both the pretreatment unit ant the infiltration basic.
5. If the Division determines that the system is foiling, the system will iI'll lied intely'be repaired to original
design speci pcationsIf. the system cannot. he rni epaired to perfo its design function. other s-toriw;ucr
co11tritl devices as allowed by NCAC 211 . t000 must be designed, approved and constructed.
I acknowledge and agree by mv>ignature below that I arm responsible for the-perforiance of the five
maintenance procedures listed above. I agreeto notify DWQ ofany problems with line system or prior to any
changes ro the system or responsible party.
Print Nmncaml Title: Eddie Anderson, Director, NHCS Facilities
6410 Carolina Beach Road Wilmin
, NC
December 15, 2
Note: Tl"' hgnllr re.rp.....We pnrtr rhnuILnot 1":: lrnerw..... t aasneindoruwL.. name lluve SnyS of I"! [an' hure bcrn enld wrd a
I,�� rcvidle•m ni thep,vuhd�lrision hay' peen round rite prexidrau.
1.- 1LtiJ h•�'�-Vq fiGpvr,S .:t Nmary Public lur ehe Stan: of jJpe i Cyrn�enC-Cocnty of
04e,)yo r . do Lcn:bycmry,h:n &610, Y�Qrjp!\
_ penonnlly nppcarcd before me this 15
day ur Q.rvmic" _ , 5.,tad ucknmdedg: ate doe :,,anion of die forgoing infiltration basin maimenarac icquiraucm<,
Winn,ss my h:md rind official sad.
SEAL bly:ninmissirnt c,pires 5-c2ad009
170imSWO-10t Itev199 pagc..1of J

PemritNo. SGu�05�2(i
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN 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
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: O(ThC^ l �t
Contact Person: i -2t�t-K 4s'fz-rr Phone Number: (1�119^ ) -61q U 11(0
This worksheet applies to: Basin No. in Drainage Area t—
(�ified on plans) (from Form SWU-101)
II. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
Z- • q
in/hr or ef/hr/sf (circle appropriate units)
SHWT Elevation
27 . O
ftnsl
(Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm
I
inch
(1.5 inch event for SA waters, I inch event for others)
Design Volume
—191n�1
c.f.
S
1%G' S
Drawdown Time
O y
days
C"2 L
Basin Dimensions
483o
Basin Size + —7 S ft. x : - I n ft. sq. ft. (bottom dimensions)
Basin Volume Provided S 2Lo -5 c.f.
Basin Elevations
Bottom Elevation finsl
Storage Elevation 30 •S fmsl
Top Elevation 3Z - C> fiml
Form SWU-103 Rev 3.99 Page 1 of 3

111. 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 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
�S a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
z5i:' b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the seasonal high water table.
j� d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
R-S e. System is not sited on or in fill material or DWQ approval has been obtained.
f. 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.
S g. Drainage area for the device is less than 5 acres.
�S h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
5 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. Calculations attached.
S k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H: V).
5 I. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
K!. ) o. Flow distribution mechanism within the basin is provided.
�2S p. A benchmark is provided to determine the sediment accumulation in the pretreatment device.
92D q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
—4:�:2— r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s. 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.
Form SWU-103 Rev 3.99 Page 2 of 3

{�✓vvnnu o rtry UCKJUIV uvvU- Int tration Basin Su emenL df "' ___L_ "� 9---11
Pa e__�
IV. INFH-rRAT'IO:N BASIN OPERATION AND MAINTENANCE AGRIi E:NIENT
I. After every runui! producing rninlall event and at (cast ninnthly inspect the infiltration system fin' erosion.
trash aCetnnlllatlot. veltetarive cover. and general condition.
_. Repair eroded areas innuediatcly, re -seed as 1A000`SSary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maxinum height ofsix inches, and remove tonsil as needed.
3. Alter every runolTproducin2 rainfall event and at least monthly inspect the bypass. inflow and overflow
suircntres for blockage and deterioration, Renmce any blockage and repair the structure to approved design
specifications.
-i. Remove accumulated sediment from the pretreatment system and infiltration It annualiv or when depth
in the pietreaunent unit is reduced to 75%otthe original design depth. 'nce system shall be restored to tileoriginal design depth without over -excavating. Over-escnvaline nav cause the required water table
separation to be reduced ;And inav connpro Ell ise the ability of the system to perform as designed. Removed
Sediment shall be disposed of in an appropriate mtutner and shall not be handled in a manner that will
adversely impact wirer quality (i.e. Stockpiling near a snnmvater treanncnt device or sue:un. ete.l.
A benchmark shall be established in the pretreahnent unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. the nncasuring device used to
dutcimine the depth at the benchm:uk shall be Such that it will give an accurate depth. reading and not
readily penetrate into accumulated sediments.
When the design depth reads Q.B feet in the pretreatment unit• the sediment shall he
removed from both the pfetrcntmcnt unit and tine infiltration basin.
5. Irrhe Division dclennines that the system is failing• the .system will inunediatelybe repairer) to original
design specifications, If the system cannot be repaired to performits design hnnctiou. otherstomnvater
control devices as allowed by NCAC 111 .1000 must be designed, approved and constructed.
I acknowledge mud agree by my signature below that I ant responsible for the performance of the five
maintenance procedures listed above. I agreeto notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Prin(MincandTide: Eddie Anderson, Director, NHCS Facilities
Address: 6410 Carolina Beach Road Wilmington, NC 28412
Phone: 254-Q82 I Data December 15, 200
Nrdc: The legally,-,,..orra il,ijarn' .I ji nil he o homco+tnrr's.rssnludi... nnlcu more than 50,N, n%lho.lora hm'e bca'rr sold and e
rcai(A.,enr n),ttile I"N1!risimr Ir.0 kern named Jra presiJrm.
\.tray Publi- I'or the Soc nf_ 0c___, l'oznry of
NXWT�oVe( .da hereby certify that �W rQ._rl�Q.(,5C)rl Pcrsonallyuppcored beimrc tom rhis�
d:w nr VQ )Mber . -'r , u..d acknowledge the dac c,ecution of the forgoin_e intilrration basin maintenance rcquircmctui.
oVitncss my hand and official sail.
$T:AI- hry mnvniaion cspircs r /
Form SNO-tut It11399 Page?of 3

Permit No. SN'dO S ( I
(to be provided by aw-0
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN 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
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: (D('TfpI—cal \r
Contact Person: k tJt rrrr Phone Number: (mot lei) 3IR - 6-1 1 L o
This worksheet applies to: Basin No. G in.Drainage Area G
(as Identified on plans) (from Form SWU-10/)
H. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Volume
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
S�ltG-F�T-F
3. O in/hr or cf/hr/sf (circle appropriate units)
2--1 - y finSI (Seasonal High Water Table elevation)
• 'E�) inch (I.5 inch event for SA waters, I inch event for others)
to < U (-A c.f.
in . 2-7 days
�V
3
GZic�
3590 P�
± q ft. x t c�) D ft. = 44M� sq. ft. (bottom dimensions)
t40-1 t.OS c.f.
Z01 - Lf fins]
31 . U fknsl
3Z S - finsl
Form SWU-103 Rev 3.99
Page 1 of 3

Ili. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stonnwater 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 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
r-5 a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
jz_s b. System is located at least 100 feet from water supply wells.
�S c. Bottom of system is at least 2 feet above the seasonal high water table.
LS d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
S e. System is not sited on or in fill material or DWQ approval has been obtained.
f. 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.
S g. Drainage area for the device is less than 5 acres.
�S h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
1ZS i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event for
areas draining to SA waters ). Design volume and infiltration calculations attached.
IDS 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. Calculations attached.
k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
kS 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
S in.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or
dense vegetative cover is provided.
n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
o.
Flow distribution mechanism within the basin is provided.
�LS p.
A benchmark is provided to determine the sediment accumulation in the pretreatment device.
S q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
�S r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
s.
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.
Form SWU-103 Rev 3.99 Page 2 of 3

J . vUrNZ)U v UVVU- Inn ltration Basin Supp ement,pdf Pa e 1.
IV. I;NEIi_ rRATIO:N I3ASIN OPERATION AND \IAIN-ri`.NANCE ACRE•'ENIENI'
I. After every runo l f producing rainfall event and at feast monthly inspect the in li l tration system for erosion.
m
trash necuulati0n. vegetative cover, and general condition.
_. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover m maintain a mtxinuon height of six inches, and remove nmsh as needed.
3. Afler every runon-producing rainthll went and at least monthly inspect the bypass, inflow and overflow
suticlurzs for blockage and dcletiormion. Iienun'e any hloc§age and repair the stmcture to approved design
speci fica[ ions.
d. Remove accumtdated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment unit is reduced to 75% or -the original design depth. The system shall be restored to the
original design depth without over -excavating. Over -excavating only cause the required water table
separation to be reduced and may compromise the aoili[y orthz system to perform as designed. Removed
sediment shall be disposed otin an appropriate manner and shall not be handled in a nrmnerthat will
adversely impact water quality (i.e. stockpiling near a starncvater treatment device or stream. etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that acct[mte sediment accumulation readings con be taken. The measuring device used to
Lie termine the depth at the benchmark sha it bz such Ihgi 1t wi 11 give an accurate depth reading and not
readily penetrate into accumulated sedinnents.
When the design depth reads C7. S feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division deternnincs that the system is failing. the systent will immllediatelybe repaired to original
design specifications. If the systcm cannot he repaired to pe:form its clesign function. other s[umnvatcr
control devices as' allowed by NCAC 2l I .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the"perfunnmce of the five
maintenance procedures listed above. I agree to notify D%V'Q of any problems with the system or prior to any
Changes to the system or responsible party.
Print Nameanl Title: Eddie Anderson, Director, NHCS Facilities
Address: 6410 Carolina Beach Road Wilmington, NC 28412
December 15, 200
(Vole.' Thrck,C`11 erpmrvihlepnrgr arn.iulinn onlery man•J¢... ' (th,dot, hnry heeu snfd und:r
,� resiidtvnr nlThe suhdh kimr ha, hem unntrrd ds, previJrnr.
1. - lob t't v4 AclrQMb Nora, Ptibli � Wr the Srnc of
1 ^-�- .C'oumy of
W NQrtOJPl . do li,:rcby cetify that &t\Q.- ,tF i-1CrQ�;j01 �i_—_ personally nppeured before ore Ou,
d ty of rv.b Q( and ucknnrcicdge life ills, exceutinn of the forgoing infiltration basin mo intenu rice rc(p,Vr n'nte.
witness ury hand and offici:d soak
SI:Al_ Nfy commission cspie,s 5-s2J-�l./g
form SINU-M.1 Re,399 Pace 3,f3

Ogden Elementary School
Stormwater Permit No. SW8 051217
New Hanover County
Designer's Certification
��ate Stormwater Management S, stems
Permit No. SW8 051217
�I
A__ i 4i as a duly registered 11700%1puAl. 6A)Cin the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
for 4W kti C,"D4 aol- S _(Project Owner) hereby state that, to the
best of my abilities, due care an 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:
SN CAF? '
Signature M ° SEAL
23953
Registration Number Z3�(S7j 2.FNQIN�P,.;�C�,"
Date _ '''y�H A.
Aug 3 � Zan
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