SW8130906_CURRENT PERMIT_20210526

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 \3 OgOlo
DOC TYPE]
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2021052to
YYYYMMDD

ROY COOPER
Governor
DIONNE DELLI-GATTI
secretary
BRIAN WRENN
i9trector
May 26, 2021
Marine Corps Base Camp Lejeune
Attn: Neal Paul, Deputy Public Works Division
1005 Michael Road
Camp Lejeune, NC 28547
NORTH CAROLINA
Fnvtron iwAtal Quai ty
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 130906
Parking Lot Addition to Building FC308
Onslow County
Dear Mr. Paul:
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on May 17, 2021. The Division is hereby notifying you that permit SW8 130906 has been renewed
on May 26, 2021, and shall be effective until September 30, 2029. For your records, please find enclosed a renewed,
updated, and re -issued permit and a copy of the renewal application. Please keep this permit on file at all times. Please
note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely restates some of
the previous terms to provide you with a better understanding of your obligations under the permit.
The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the
terms and conditions of this state stormwater permit. The plans originally approved on September 30, 2013 and most
recently modified October 23, 2019 will remain in full force and effect in accordance with the regulations set forth in
Title 15A NCAC 2H.1000.
This permit is 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, 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 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 (OAR). 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 OAR 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, need additional copies of the permit or approved plans, please contact Ashley Smith in the
Wilmington Regional Office, at [phone] or [e-mail].
Sincerely,
CAU'"
J� Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
Renewal Application Documents
DES/ams: %Stormwater\Permits & Projects\2013\130906 HD\2021 05 permit 130906
cc: NCDEQ-DEMLR Wilmington Regional Office
®wn A , North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Wilmington Regional office 1 127 Cardinal Drive Extension I Wilmington North Carolina 28405
cnaaucm�+r� / 910.7%.7215

State Stormwater Management
Permit No. SW8 130906
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
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
US MCB Camp Lejeune
French Creek Ambulatory Care Clinic
H.M. Smith Boulevard, Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of one (1) wet detention pond, one (1) infiltration basin, and
an area of redevelopment ("stormwater control measures" or "SCMs") in compliance with the
provisions of Title 15A NCAC 2H .1000 as amended by Session Law (SL) 2008-211 and subsequently
amended on January 1, 2017 (2017 Rules) (collectively, the "stormwater rules") and the approved
stormwater management plans, application, supplements, specifications, and other supporting data
(the "approved plans and specifications") as attached and/or on file with and approved by the Division
of Energy, Mineral and Land Resources (the "Division" or "DEMLR") and considered an enforceable
part of this permit.
This permit shall be effective from the date of issuance until September 30, 2029 and shall be subject
to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the management and volume of stormwater
described in the approved plans and specifications. The maximum amount of built -upon area
(BUA) allowed for the entire project is 170,064 square feet.
2. The drainage areas for the on -site stormwater systems will be limited to the amounts of built -
upon area indicated in this permit and the approved plans and specifications. The runoff from all
built -upon area within the permitted drainage areas of this project must be directed into the
permitted stormwater control measures. The stormwater control measures labeled Drainage
Area 1 and Drainage Area 3 have been designed using the runoff treatment method to handle
the runoff from 19,784 and 29,620 square feet of built -upon area, respectively. This permit does
not provide any allocation of built -upon area for future development.
3. Drainage Area 2 is being redeveloped and is exempted from State Stormwater permitting
requirements under the following conditions:
a. The project must be constructed as shown on the plans submitted to this Office,
b. The total proposed built -upon area of 120,660 square feet does not exceed the existing
built -upon area of 160,300 square feet; and,
c. The proposed stormwater controls; a dry detention basin, grass channels, vegetated sheet
flow, and piped collection systems, provides equal protection of surface waters as the
existing stormwater control; which is grass channels, vegetated sheet flow, and piped
collection systems.
Page 1 of 5

State Stormwater Management
Permit No. SW8 130906
A 50-foot wide vegetative setback must be provided and maintained adjacent to all surface
waters, measured horizontally from the normal pool elevation of impounded structures, from the
top of bank of each side of streams or rivers, and from the mean high waterline of tidal waters,
perpendicular to the shoreline in accordance with the stormwater rules and the approved plans
and specifications.
5. A vegetated filter strip is not required for this pond as it has been designed for a 90% total
suspended solids removal efficiency.
6. The following design criteria have been provided
in the wet detention pond treating Drainage
Area 1 and which must be maintained at design condition:
a. Rules:
Session Law 2008-211
b. Drainage Area, acres:
0.815
Onsite, ft2:
35,508
Offsite, ft2:
0
c. Total Impervious Surfaces, ft2:
19,784
Onsite, ft2:
19,784
Offsite, ft2:
0
d. Design Storm, inches:
1.5
e. Average Pond Design Depth, feet:
3.0
f. TSS Removal Efficiency:
90%
g. Permanent Pool Elevation, FMSL:
19.0
h. Permanent Pool Surface Area, ft2:
3,675
i. Permitted Storage Volume, ft':
3,280
j. Temporary Storage Elevation, FMSL:
19.7
k. Pre-dev. 1-yr 24-hr discharge rate, cfs:
0.02
I. Controlling Orifice:
1.0" dia. pipe
m. Orifice Flowrate, cfs:
0.01
n. Permitted Forebay Volume, ft':
1,452
o. Fountain Horsepower:
n/a
p. Receiving Stream / River Basin:
Cogdel's Creek / White Oak
q. Stream Index Number:
19-23
r. Classification of Water Body:
Sc, NSW
7. Decorative spray fountains will not be allowed
in the stormwater treatment system, as the
permanent pool volume is less than 30,000 cubic
feet.
8. The infiltration basin treating Drainage Area 3 is permitted based on the design criteria
presented in the sealed, signed and dated supplements and as shown in the approved plans
and specifications. The infiltration basin is designed based on the 2017 Rules and 2017
minimum design criteria (MDC). This stormwater control measure must be provided and
maintained at the design condition. The approved supplement is incorporated by reference into
this permit.
9. The peak flow from the 10-year storm event directed to the infiltration basin shall not cause
erosion downslope of the stormwater outlet discharge point.
10. The following pretreatment devices have been provided for the infiltration basin to prevent
clogging: grass channel, sumps, and gravel diaphrams.
11. Areas of landscape material have been proposed within the project area with the intent of
providing vegetative control such that they are considered a pervious surface. If, in the future,
this area is found to no longer be pervious through resurfacing, a permit modification will be
required.
Page 2 of 5

State Stormwater Management
Permit No. SW8 130906
II. SCHEDULE OF COMPLIANCE
1. The facilities shall be constructed, operated and maintained in accordance with the provisions of
this permit, the approved plans and specifications, and the supporting documents attached to
this permit and on file with the Division.
2. The on -site stormwater management system shall be entirely constructed, vegetated, and
operational for its intended purpose prior to the construction of any development within the
drainage area, per the approved plans and specifications.
3. During construction, erosion shall be kept to a minimum and any eroded areas of the on -site
stormwater system will be repaired immediately. If the stormwater system is 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.
4. All stormwater control measures, stormwater collection systems vegetated conveyance systems,
and/or maintenance accesses must be located in public rights -of -way, dedicated common areas
that extend to the nearest public right-of-way, and/or permanent recorded easements that
extend to the nearest public right-of-way for the purpose of inspection, operation, maintenance,
and repair.
5. The permittee shall provide and perform the operation and maintenance necessary, as listed in
the signed Operation and Maintenance Agreement, to assure that all components of the
permitted on -site stormwater system functions at the approved design condition. The approved
Operation and Maintenance Agreement is incorporated by reference into this permit and must
be followed in its entirety and maintenance must occur at the scheduled intervals.
6. Records of maintenance activities must be kept and made available upon request to authorized
personnel of the Division. The records will indicate the date, activity, name of person performing
the work and what actions were taken.
7. The final plats for the project must be recorded with the Office of the Register of Deeds. The
recorded plat must reference the Operation and Maintenance Agreement and must also show all
public rights -of -way, dedicated common areas, and/or permanent drainage easements, in
accordance with the approved plans.
8. The permittee is responsible for verifying that the proposed built -upon area for the entire project
does not exceed the maximum allowed by this permit.
9. Upon completion of the project, the permittee shall determine whether or not the project is in
compliance with the permitted plans and take the necessary following actions:
a. If the permittee determines that the project is in compliance with the permitted plans, then
within 45 days of completion, the permittee shall submit to the Division one hard copy and
one electronic copy of the following:
i. The completed and signed Designer's Certification provided in Attachment A
noting any deviations from the approved plans and specifications. Deviations
may require approval from the Division;
ii. A copy of the recorded maintenance agreement,
iii. Unless already provided, a copy of the recorded deed restrictions and protective
covenants; and
iv. A copy of the recorded plat delineating the public rights -of -way, dedicated
common areas and/or permanent recorded easements, when applicable.
b. If the permittee determines that the project is not in compliance with the permitted plans,
the permittee shall submit an application to modify the permit within 30 days of completion
of the project or provide a plan of action, with a timeline, to bring the site into compliance.
Page 3 of 5

State Stormwater Management
Permit No. SW8 130906
10. No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications. Prior to the construction of any modification to the approved plans, the
permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below. For changes to
the project or SCM that impact the certifications, a new or updated certification(s), as applicable,
will be required and a copy must be submitted to the appropriate DEQ regional office upon
completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size including the
SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
C. Further development, subdivision, acquisition, lease or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications.
d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or vegetative
conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in the
approved plans and specifications.
g. Other modifications as determined by the Director.
11. 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 modified plans and certification in writing to
the Director that the changes have been made.
12. Prior to transfer of the permit, a file review and site inspection will be conducted by Division
personnel to ensure the permit conditions have been met and that the project and the on -site
stormwater system complies with the permit conditions. Any items not in compliance must be
repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities
performed to date may be requested.
III. GENERAL CONDITIONS
Any individual or entity found to be in noncompliance with the provisions of a stormwater
management permit or the requirements of the stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21.
The issuance of this permit does not preclude the permittee from complying with and obtaining
any other permits or approvals that are required for this development to take place, as required
by any statutes, rules, regulations, or ordinances, which may be imposed by any other Local,
State or Federal government agency having jurisdiction. Any activities undertaken at this site
that cause a water quality violation or undertaken prior to receipt of the necessary permits or
approvals to do so are considered violations of NCGS 143-215.1, and subject to enforcement
procedures pursuant to NCGS 143-215.6.
If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective actions.
This includes actions required by this Division and the stormwater rules such as the construction
of additional or replacement on -site stormwater systems. These additional or replacement
measures shall receive a permit from the Division prior to construction.
Page 4 of 5

State Stormwater Management
Permit No. SW8 130906
4. Permit Transfer: This permit is not transferable to any person or entity except after notice to
and approval by the Director. The permittee shall submit a completed and signed "Permit
Transfer Application Form" (available on the Division website) accompanied by the required
fee and supporting documentation as listed on the form, to the Division at least 60 days prior
to any one or more of the following events:
a. The sale or conveyance of the project area in whole or in part, except in the case of an
individual lot sale that is made subject to the recorded deed restrictions and protective
covenants;
b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08,
C. Bankruptcy,
d. Foreclosure, subject to the requirements of Session Law 2013-121,
Current Permittee Name or Address Changes: The permittee shall submit a completed
"Permit Information Update Application Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project,
C. A mailing address change of the permittee;
6. The permittee is responsible for compliance with all terms and conditions of this permit until
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 constitutes an approved transfer of the
permit.
7. The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project.
8. The permit issued shall continue in force and effect until the permittee files a request with the
Division for a permit modification, transfer, renewal, or rescission; however, these actions do
not stay any permit conditions.
9. Approved plans, application documents, supplements, calculations, operation and
maintenance agreement, and specifications for this project are incorporated by reference and
are enforceable parts of the permit. A copy of this permit, application, supplements, operation
and maintenance agreement, and approved plans and specifications shall be maintained on
file by the permittee.
10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater
system must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
11. 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 for cause as allowed by the
laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al.
12. A permit renewal request must be submitted at least 180 days prior to the expiration date of
this permit. The renewal request must include the appropriate application, documentation and
the processing fee as outlined in Title 15A NCAC 02H.1045(3).
Permit renewed, updated and reissued this the 26 day of May 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�-J'I%LIOY�-�1 �N+X..r
f, rian�n Dire for
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5

State Stormwater Management Systems
Permit No. SW8 130906
French Creek Ambulatory Care Clinic
Stormwater Permit No. SW8 130906
Onslow County
Attachment A
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,
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 a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
cc: NCDEQ-DEMLR Regional Office
SEAL
Page 1 of 2

State Stormwater Management Systems
Permit No. SW8 130906
General 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. All slopes are grassed with permanent vegetation.
6. Vegetated slopes are no steeper than 3:1.
7. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
8. The permitted amounts of surface area and/or volume have been provided.
9. All required design depths are provided.
10. All required parts of the system are provided.
11. The required dimensions of the system are provided, per the approved plan.
12. All components of the stormwater control measure are located in either recorded
common areas. or recorded easements.
Wet Pond Certification Requirements:
The outlet/bypass structure elevations are per the approved plan.
2. The outlet structure is located per the approved plans.
3. A trash rack is provided on the outlet/bypass structure.
4. Required drawdown devices are correctly sized per the approved plans.
Infiltration System Certification Requirements:
The bypass structure weir elevation is per the approved plan.
2. The bypass structure is located per the approved plans.
3. A trash rack is provided on the bypass structure.
Page 2 of 2

Attachment C - Permitting History
P4040 French Creek Ambulatory Care Clinic
Permit No. SW8 130906
A
Date
Date
permit Action
BIMS
Version
Description of the Changes
9/30/2013
Original
Approval
10
Expansion of project area to
1/8/2018
Modification
1.1
cover entire complex;
additional BUA
Revised layout:
redevelopment of drainage
10/23/2019
Modification
12
area; reduction in project area
and BUA; design of
infiltration basin shape and
volume change
5/26/2021
Renewal
2.0

& Maintenance Agreement
Project Name
Project Location
P4040 French Creek Ambulatory Care Clinic Addition/Alteration
Marine Corps Base, Camp Lejeunne
Maintenance records shall be kept on the following BMP(s). This maintenance record shall 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 pollutant removal efficiency of the BMP(s).
The BMP(s) on this project include (check all that apply & coresponding O&M tables will be
Bioretention Cell Quantity:
Dry Detention Basin Quantity:
Grassed Swale Quantity:
Green Roof Quantity:
Infiltration Basin Quantity:
Infiltration Trench Quantity:
Level SpreaderNFS Quantity:
Permeable Pavement Quantity:
Proprietary System Quantity:
Rainwater Harvesting Quantity:
Sand Filter Quantity:
Stormwater Wetland Quantity:
Wet Detention Basin Quantity:I
Disconnected Impervious Area Present:
User Defined BMP Pr.C.nt.
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
rnn.i�••/•.\.
1
Ad
No
CLICK TO UPDATE O&M MANUAL
I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to
the system or responsible party.
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
Neal Paul
Deputy Public Works Officer, MCB Camp Lejeune
Building 1005 Michael Road
MCB Camp Lejeune
910-451-2213
[e-mail]
Signatu L) , I D tAe:'►
l , a Notary Public for the State of
County of do hearby certify ,th�,a,t��,tQ
personally appeared before me this v fL day of L. ����-( and
acknowledge the due execution of the Op rations and Maintenance Agreement .
Witness my hand and official se
�Nn
p10TAR1-
�'LBLIG
commission expires
ECEIVE'
OCT 0 8 1019
BY
STORM-EZ
Version 1.4 O&M Manual 8/29/2019
Page 1 of 3

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Important maintenance procedures:
- The drainage area will be carefully managed to reduce The sediment load to The infiltration basin.
Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until
the plants become established (commonly six weeks).
No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the
vegetation.
- The vegetation in and around the basin will be maintained at a height of approximately six inches.
After the infiltration basin is established, it shall be inspected once a quarter 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 shall be kept in a known
set location and shall be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately.
BMP element:
Potential problem:
How to remediate the problem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
infiltration 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.
The inlet device: pipe or
Swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
swale (if applicable).
Regrade the swale if necessaryto smooth it over and provide erosion
control devices such as reinforced turf matting or riprap to avoid future
problems with erosion.
The forebay
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
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.
Erosion has occurred or
riprap is displaced.
Provide additional erosion protection such as reinforced turf matting or
riprap if needed to prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by hand. If pesticides are used, wipe
them on the plants rather than spraying.
The main treatment area
A visible layer of sediment
has accumulated.
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. Replace any media that
was removed in the process. Revegetate disturbed areas immediately.
Water is standing more than 5
days after a storm event,
Replace the top few inches of filter media and see if this corrects the
standing water problem. If so, revegetate immediately. If not, consult
an appropriate professional for a more extensive repair.
'
Weeds and noxious plants
are growing in the main
Remove the plants by hand or by wiping them with pesticide (do not
spray).
treatment area.
The embankment
Shrubs or trees have started
Remove shrubs or trees immediately.
CC�
to grow on the embankment.
C O V
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 INC Department of Environment and Natural
damage have occurred at the
Resources Regional Office.
outlet.
STORM LZ
Version 1.4
O19
Page 2 of 3
O&M Manual

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Important operation and maintenance procedures:
The roof area will be maintained to reduce the debris and sediment load to the system. Excess debris can clog
_ the system and lead to bypass of the design storm, and reduced infiltration and pollutant removal.
To ensure proper operation as designed, a licensed Professional Engineer, Landscape Architect, or other
qualified professional will inspect the system annually.
The system components will be repaired or replaced whenever they fail to function properly.
The system will be visually inspected by the owner/operator at least quarterly. Records of operation and maintenance will be kept
in a known set location and will be available upon request.
inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately
BMP element:
Potentialproblem:
How to remediate theproblem:
The captured impervious
area
Excess debris or sediment is
present on the rooftop or
Remove the debris or sediment as soon as possible.
impervious surface.
The gutter system (if
applicable)
Gutters are clogged, or water
is backing up out of the gutter
Unclog and remove debris. May need to install gutter screens to
prevent future clogging.
system.
Rooftop runoff not making it
into gutter system.
Correct the positioning or installation of gutters. Replace if necessary
to capture the roof runoff.
Rooftop runoff causing
Install or repair splash blocks as needed.
erosion at outlet.
Roadways & parking lots
(if applicable)
Runoff flows to the pervious
area as concentrated flow.
Remove any sediment or obstructuions at the edge of the impervious
area, repair gravel verge
Energy dissipaters are unever
Repair or replace energy dissipater.
settled, undercut, eroded or
otherwise damaged.
The pervious area
Erosion is evident
Repair the eroded area and stabilize immediately.
There is erosion around the
end of the pervious area that
shows stormwater has
Regrade the soil to create a small berm, and then plant turf grass and
water until it is established. Provide lime and a one-time fertilizer
application.
bypassed it.
Unintended trees or shrubs
have begun to grow in the
Remove them and re-establish vegetation per the original landscaping
plan.
pervious area.
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to remove the gully, and then plant with
turf grass and water until it is established. Provide lime and a one-
time fertilizer application.
Standing water is present 24
hours after rainfall.
Fill shallow depressions with topsoul and seed mix. Regrade the area
as necessary to reestablish sheet flow across the pervious area.
Vegetation is too long.
Maintain vegetation at a height of approximately 2 to 6 inches..
Property Owner
Participation
Homeowners have re-routed
gutters or otherwise altered
Provide educational materials to homeowners, and contact
neighborhood HOA.
the system in a manner which
adversely impacts
performance.
ECEINE
OCT 0 8 2019
STORM-EZ P
Version 1.4 O&M Manual 8/29/2019
Page 3 of 3

�.
I l i � •,
_ _r-e^
rY:,.1,.�.-...

Permit Number:
(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 I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
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.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4
l
j SEP 11 2013
BY:
Page I of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number: /
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced, turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
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.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 5EP 1 203 !� „„ Page 2 of 4
BY:

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. if applicable)
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 5.0 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 5_0 feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 19.0
14.0 Pe anen Pool
------------ -- Volume Sediment Removal Elevation 14.0 Volume
13.0-ftMin. --------------------------------------
Sediment Bottom Elevation 13.0 1-ft r
Storage Sedimet
Storage
FOREBAY MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.4
SEP 11 2013
BY:
Page 3 of 4

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:Constructy Parking Lots, Hadnot Point and French Creek, Building FC-308
BMP drainage area number:
Print name:
Title: Deputy Public Works Director
Address:MCB Camp Lejeune, 1005 Michael Road, Camp Lejeune, NC 28547
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.
a Notary Public for the State of
County of V Vkt-k J L iV , do hereby certify that
personally appeared before me this 04
day of j-L) , and acknowledge the due execution of the
forgoing wet detention basin
seal,
KELLEY VANDECOEVERINOF
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
Witness my hand and
Form SW401-Wet Detention Basin O&M-Rev.4 tSEP i i 2013
C
�t
41
BY: -
Page 4 of 4

I]FMI H HSF_ UNLV
DateRe•eive
Fee Paid
I Permit Number
61)P10 A 7 v:
S D CIO (P J
I i;lEc-Ironic,
( NC DEO Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
i
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8 130906
2. Project name: Parking Lot Addition to Building FC308 High Density Commercial Wet Detention Pond
Proiect/French Creek Ambulatory Care Clinic
3. Project street address: XXX
City: MCB Camp Leieune County: Onslow
ZIP: 28542
4. What, if any, changes have been made to the project as permitted? N/A
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/about/divisions/energy-
mine ral-land- resources/e ne rqv- mine ral-land-rules/stormwate r-prog ram/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https://deg.nc.gov/about/divisions/energy-mineral-land-
resources/enerav-mineral-land- rules/stormwater-Drooram/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: MCB Camp Leieune
2. Signing Official's Name: Neal Paul
3. Signing Official's Title: Deputy Public Works Division
4. Mailing Address: MCB Camp Lejeune 1005 Michael Rd.
City: MCB Camp Leieune State: NC
ZIP: 28547-2521
5. Street Address:
City: State: ZIP
6. Phone: [phone] Email: [e-mail]
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HOW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
HEB 1. A permit application processing fee of $505.00 payable to NCDEO.
HEB 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor, or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
HEB 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
HEB 4. O&M Agreements, Please select one:
® 1 have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
HEB 5. Designer Certifications, Please select one:
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or `
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.gov/online services/search/by title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PER EE'S CERTIFICATI N
the person legally responsible for the permit, certify that I have
a copy bf the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon and to submi roper forms to modify or transfer the permit prior to any changes to the
project, SC nand
o nership. II info mation provided on this permit renewal application is, to the best of my
knowledge, Corr ct nd m lete.
Signature: Date: 'L
NOTARIZATION:
Uorc, a Notary Public for the State of
Ak)A t' County of r\S(O r , do hereby certify
that ' I L� �'� personally appeared before me
this the day of ' `Q-C.\ 20 2-1 , and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal) ", r r r r r I III
%�J SRSp�
Notary Signature: = W
My commission expires PV
O .,
0 rCo�`��,,
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

SUPPLEMENT-EZ FORM COVER PAGE
Please indicate the types, quantities and locations of SCMs that will be used on this project:
Quantity
Location(s)
Infiltration System
1
Drainage Area 3 - Adjacent to Dumpster Pad
Bioretention Cell
Wet Pond
Stormwater Wetland
Permeable Pavement
Sand Filter
Rainwater Harvesting
Green Roof
Level Spreader -Filter Strip
Disconnected Impervious Surface
Treatment Swale
Dry Pond
Designer information for this project:
Name and Title:
Andrea Landfair, P.E.
Organization:
Bamforth Engineers + Surveyors
Street address:
2207 Hampton Boulevard
City, State, Zip:
Norfolk, VA 23517
Phone number(s):
757-627-7079
Email:
[e-mail]
Designer
,�Urrrrrrrr
%QOFESS/p ��
'Q PAL
r 04816 ' \
�rrr2Q . FNGINE�P•��:
r'r�9Fq . LP�.�0�'
Signature of Designer
Date
Applicant:
COvINNnN. .
o�rr
Pro'ect Name:
Fench Greekm u a ory Gare
Clinic ii i n
Address
MCB Camp Lejeune, H. M. Smith Boulevard
City / Town
Jacksonville, NC
Company:
Commanding Officer, Marine Corps Base, Camp Lejeune
Contact:
Neal Paul, Deputy Public Works Officer
Mailing Address:
Building 1006 Michael Road
City, State, Zip:
MCB Camp Lejeune, NC 28547
Phone number(s):
910-451-2213
Email:
[e-mail]
Certification Statement:
I certify, under penalty of law: that this Supplement-EZ form and all supporting
information were prepared under my direction or supervision;
- that the information provided in the form is, to the best of my knowledge
and belief, true, accurate, and complete; and
that the engineering plans, specifications, operation and maintenance
agreements and other supporting information are consistent with
the information provided here.
I am aware that there are significant penalties for submitting false
information including the possibility of fines and imprisonment for knowing
violations as well as a report being made to my professional board.
ECEi`/E
OCT 082019
'ay:_---
Cover Page 1 4:39 PM 10/4/2019

JA-

INFILTRATION SYSTEMS
P4040 Fench Creek Ambulatory Care Clinic Addition/Alteration
THE DRAINAGE AREA
Drainage area number
3
Break down of BUA in the drainage area (both new and existing):
Total coastal wetlands area (so ft)
- Parking I driveway (sq ft)
19875 al
Total surface water area (sq fit)
- Sidewalk (so ft)
1745 of
Total drainage area aq ft)
60112 of
- Roof (so ft)
BUA associated with existing development Isq ft)
8592 of
- Roadway (sq ft)
8000 of
Proposed new BUA (so ft)
21028 of
- Other, please specify in the comment box below (sq ft)
Percent BUA of drainage area
49%
Total BUA (sq ft)
29620 at
COMPLIANCE WITH THE APPLICABLE STORMWATER PROGRAM
Stormwater programfs) that apply (please specify):
iDesigh rainfall depth (in)
1.601n
Coastal, SC Waters
JiMmunum volume required (cu ft)
3888 cf
Design volume of SCM (so ft)
3893 cf
GENERAL MDC FROM 02H.1050
#1 Is the SCM sized to treat the SW from all surfaces at build -out?
Yee
#7 If applicable, with the Si be cleaned out after construction?
#2 Is the SCM located on or near contaminated soils?
No
#8 Does the mainetanance access comply with General MDC (B)?
Yee
#3 What are the Side slopes of the SCM (H:V)?
3:1
#9 Does the drainage easement comply with General MDC 9 ?
43 Dees the SCM have retaining walls, grown walls or other engineered side slopes?
No
#10 If the SCM is on a single family lot, does the plat comply with General MDC (10)?
ti A
#4 Are the inlets, outlets, and receiving stream protected from erosion (10 year storm)?
Yee
#11 Is there an 08M Agreement that complies with General MDC (11)a
Yee
#5 Is there a a bypass for flows in excess of the design flow?
Yes
#12 Is there an 08M Plan that complies with General MDC (12)1
Yee
#6 What is the method for derwalering the SCM for maintenance?
Pump (preferred)
#13 Was the SCM designed by an NC licensed professional?
Yes
INFILTRATION SYSTEM M_ DC FROM 02H .1051
#1 SHWT elevation (fms)
14.1 f1
q5 Length tt
100.Ofl
#1 Was the soil investigated in the footprint and at the elevation of the infiltration system?
Yes
#5 Width (ft)
48.It
#1 Soil infiltration rate finlhr)
2,761Nhr
#5 Depth/Height (ft)
1.20fl
#1 Brady Describe the hydraulic properties and characteristics of the soil profile'.
#5 Surface area of fire bottom of me infiltration system (sq feel)
2984 of
Sandy soil
#5 Pending depth of the design volume (in)
14.4 In
#5 Estimated dowatering time (hours)
9.0 his
#5 For trenches only: Perforated pipe diameter, if applicable (inches)
#2 SHW T elevaton(fms)
14.0 ft
#5 For Venches only: Number of laterals
#2 Bottom of the Infiltration system (frost)
20.6 ft
#5 For Venches only. Stone type, if applicable
02 Is a detailed hytlmgeologic study attached if the separation is between 1 and 2 feel?
q5 For trenches only: Stone void ratio (%)
#3 Proposed slope of Me subgrade surface (%)
0%
#5 For conches only. Is stone free of fines?
#3 Are terraces or baffles provided?
No
#5 For trenches only: Is the stone wrapped in goatskins fabric?
#4 Describe the pretreatment that will be provided
#6 Is the infiltration system located underground?
No
Grass channel, sump and gravel dlaphrogm
#6 If so, has at least one infiltration port been provided?
ADDITIONAL INFORMATION
Please use this space to provide any information about this infiltration system that you think Is relevant to the review:
Also includes dumpster pad and service area.
1 OCT 10 2019
8Y.•_ _
In(ilratio n
5:09 PM 10/10/2019

SUPPLEMENT-EZ FORM COVER PAGE ualryo r^"vo!"'
Please indicate the types, quantities and locations of SCMs that will be used on this project:
Quantity
Location(s)
Infiltration System
1
Drainage Area 3 - Adjacent to Dumpster Pad
Bioretention Cell
Wet Pond
Stormwater Wetland
Permeable Pavement
Sand Filler
Rainwater Harvesting
Green Roof
Level Spreader -Filter Strip
Disconnected Impervious Surface
Treatment Swale
Dry Pond
Designer Information for this project:
Name and Title:
Anna Lee Bamforth, P.E., L.S., President
Organization:
Bamforth Engineers + Surveyors
Street address:
2207 Hampton Boulevard
City, State, Zip:
Norfolk, VA 23517
Phone number(s):
757-627-7079
Email:
[e-mail]
Designer
C ARG(����
i
��� •pFESS/�yi9�
a SEAL
029841
I�d�1111
Signature of Designer
tl/1e/1-1
ECEIVE
DEC 0 6 20V
®Y:
Applicant:
Project Name:
P4040 FenchCreek m u atory Care Clinic
Addition/Alteration
Address
MCB Camp Lejeune, H. M. Smith Boulevard
City / Town
Jacksonville, NC
Company:
Commanding Officer, Marine Corps Base, Camp Lejeune
Contact:
Neal Paul, Deputy Public Works Officer
Building 1006 Michael Road
Mailing Address:
City, State, Zip:
MCB Camp Lejeune, NC 28547
Phone number(s):
910-451-2213
Email:
[e-mail]
Certification Statement:
I certify, under penalty of law: that this Supplement-EZ form and all supporting
information were prepared under my direction or supervision;
- that the information provided in the form is, to the best of my knowledge
and belief, true, accurate, and complete; and
that the engineering plans, specifications, operation and maintenance
agreements and other supporting information are consistent with
the information provided here.
I am aware that there are significant penalties for submitting false
information including the possibility of fines and imprisonment for knowing
violations as well as a report being made to my professional board.
Cover Page 1 4:28 PM 11/27/2017

• 1 iM iC r''�
• i>E?Sir

INFILTRATION SYSTEMS
P4040 Fench Creek Ambulatory Care Clinic Addition/Alteration
TH j--05911TAGE AREA 1
Dranage area number 3 Break down of BUA in the drainage area (both new and existing):
Total coastal wetlands area (I it)
- Parking / driveway (sq it)
22364 sf
Total surface water area (sq it)
- Sidewalk (sq ft)
1446 sf
Total drainage area (sq fl)
54300 sf
- Roof (so ft)
BUA associated with existing development (so ft)
9164 sf
- Roadway (sq fl)
6890 sf
Proposed new BUA (sq ft)
21536 at
- Other, please specify in the comment box below (sq ff)
Percent BUA of drainage area
57 %
Total BUA lag ft)
30700 sf
COMPLIANCE WITH THE APPLICABLE STORMWATER PROGRAM
Stormwater programs) that apply (please specify):
IDesigh rainfall depth (in)
1.50 in
Coastal, SC Waters
Minimum volume required (cu ft)
3821 ct
Design volume of SCM (cu ft)
4327 cf
GENERAL MDC FROM 02H .1050
M1 Is the SCM sized to treat the SW from all surfaces at build -out?
Yes
07 If applicable, with the SCM be cleaned am after construction?
/
k2 Is the SCM located on or near contaminated soils?
No
118 Does the maintenance access comply with General MDC (8)?
Yes
k3 What are the side slopes of the SCM (H:V)?
3:1
»9 Does the drainage easement comply with General MDC (9)?
U/1ee
k3 Does the SCM have retaining walls, gabion walls or other engineered side slopes?
No
#10 It the SCM is on a single family lot, does the plat comply with General MDC (10)?
N/rf
k4 Are the inlets, outlets, and receiving stream protected from erosion (10-year storm)?
Yes
#11 Is there an O&M Agreement that complies with General MDC (11)?
Yes
k5 Is there a a bypass for flows in excess of the design flow?
Yes
#12 Is there an 08M Plan that complies with General MDC (12)?
Yes
k6 What is the method for dewatering the SCM for maintenance?
Pump (preferred)
#13 Was the SCM designed by an NC licensed professional?
Yes
INFILTRATION SYSTEM MDC FROM 02H .3051
ki SHWT elevation (fmsl)
14.0 ft
N5 Length (ft)
80.0 If
k1 Was the soil investigated in the footprint and at the elevation of the infiltration system?
Yes
k5 Width (h)
40.1
N1 Sail infiltration rate (in/hr)
2.75 in/hr
k5 Depth/Height (it)
1.50 it
ki Briefly describe the hydraulic properties and characteristics of the sail profile:
k5 Surface area of the bottom of the infiltration system (sq feet)
2800 sf
Sandy soil
k5 Pending depth of the design volume (in)
14.4 in
N5 Estimated dewatering time (hours)
9.0 his
n5 For trenches only: Perforated pipe diameter, if applicable (inches)
k2 SHWT elevation (fmsl)
14.0 it
N5 For trenches only: Number of laterals
N2 Bottom of the Infiltration system Ifni
20.6 it
k5 For trenches only: Stone type, if applicable
N2 Is a detailed hydrogeologic study attached if the separation is between 1 and 2 feet?
NtA
N5 For trenches only: Stone void ratio (%)
N3 Proposed slope of the subgrade surface (%)
0%
q5 For trenches only: Is stone free of fines?
N3 Are terraces or baffles provided?
No
k5 For trenches only: Is the stone wrapped in geotexlile fabric?
k4 Describe the pretreatment that will be provided:
86 Is the infiltration system located underground?
No
Grass channel, sump and gravel diaphragm
p6 If so, has at least one infiltration porl been provided?
ADDITIONAL INFORMATION
Please use this space to provide any information about this infiltration system that you think is relevant to the review:
Also includes dumpster pad and service area
Infiltration 1 2:30 PM 12/29/2017

Perm it No.����j✓`�
no be irovided by DWO)
®��
02��0....FW�AT f;,??
NCDENR
o Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This fomr must be filled out, printed and submitted.
The Required
Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
IA P.ROJECTi1NF.ORMATION
Project name
! - Construct Parking .Lots, Hadnot Point B French Creek, Building FC-308
Contact person
Joseph.C. Avofs,.RE.
Phone number
'252-633-0068
Date
'8-Aug-13 .
Drainage area number
i1.
11.9DESIGNIINF,ORMATION
Site Characteristics
Drainage area
Impervious area, post -development
h impervious
Design rainfall depth
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the 1yr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 1 Oft vegetated shelf elevation
Bottom of 1 Oft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
Form SW401-Wet Detention 9asin-Rev.94/18/12
I 508ryv
19,784''e
55.72
i 1i51in
2,460;ft3
3,2801ft3
I - ! OK, volume provided is equal to or in excess of volume required.
•ft3
�!(Y or N)
3.Tin
0.15!(unidess)
O.66i(unitless)
! 0.151inlhr Insufficient. Check intensity calculation. �K
0.02 ft3lsec
0.08 ft3lsec
0.06 ft3/sec
19.701fmsl
i 19.0w hr sl
19.00ifinsl
19.50;fmsl
18.50jfmsl
14.00' fmsl
'-13.00;fmsl
1.00 It
'Y j(Y or N)
I
1 19.71fmsl OK
SEP i 1 2013
J
BY:
Parts I. b II. Design Summary, Page 1 of

Permit
(to be provided by DWQ)
II.ADESIGNIINF,ORMATION='
Surface Areas
Area, temporary pool
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, Ap,,,,_, a
Area, bottom of 10ft vegetated shelf, A, ,i„ n
Area, sediment cleanoul top elevation (bottom of pond), Ay ,.rt
Volumes
Volume, temporary pool
Volume, permanent pool, Vr, -,,
Volume, forebay (sum of forebays if more than one forebay)
Forebay %of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, Vr,,,,
Area provided, permanent pool, Ar,,,,,�
Average depth calculated
Average depth used in SAIDA, dam„ (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, A,,,.
Area, bottom of 10ft vegetated shelf, A vLmer
Area, sediment cleanoul, top elevation (bottom of pond), A,i m
....-5,371if1z
2,273 fe
6.40I(unitless)
3,675je OK
2.375,ft`
378,,e
_
3,280,ft' OK
7,254fts
1,452fts
20.0% % OK
�90p %
Y i(Y or N)
N ',(Y or N)
6.40 (unitless)
N VorN)
7,254 ft'
3,675 It`
I Ift
i Y. i(Y or N)
3,675 fl
2,375 ft
378 ftz
'Depth' (distance bIw bottom of 10ft shelf and top of sediment) 4.50 ft
Average depth calculated - 3.01ft
Average depth used in SAIDA, d.., (Round to down to nearest 0.5ft) 3.0;ft
Dmwdown Calculations
Drawdown through orifice?
Diameter of orifice (if circular)
Area of orifice (if -non -circular)
Coefficient of discharge (Co)
Driving head (H,)
Drawdown through weir?
Weir type
Coefficient of discharge (C.)
Length of weir (L)
Driving head (H)
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width rafio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filler provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
Forth SW401-Wet Detention Basin-Rev.94I18/12
ift
0.02Y/sec
0.02 fta/sec
j 0.01 fta/sec
I 2.60days
Need 3 fit min.
OK
OK
Of, draws down in 2-5 days.
OK
101:1 OK
t.. 10.01ft OK
3 :1 OK
SEP 11 2013 ;� d
IL
EY:
Parts 1.611. Design Summary, Page 2 of 2

Permit
(to be provided by DWQ)
III. REQUIRED.ITEMS CHECKLIST = :- " = --
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROM,
- Overflow device, and
- Boundaries of drainage easement.
11� G( (P 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shelf, and
�j �� - Filter strip.
rA%f'I L' L4P 3. Section view of the wet detention basin (1" = 20' or larger) shoving:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
/_ CJ 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
/_ on the plans prior to use as a wet detention basin.
GIB 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
6r to verify volume provided.
A
CS 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
n AgAC ZO 7. The supporting calculations.
{�iJa `Ff1C7 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
(J� 9. A copy of the deed restrictions (if required).
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.9-4/18/12 r1i
SEP20♦� a Part III. Required Items Checklist, Page 1 of 1
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