SW8140601_CURRENT PERMIT_20220831

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 ly 0�sp o 1
DOC TYPE
© CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2022083I
YYYYMMDD

ROY COOPER
Governor
ELIZABETH S. BISER
secretary
BRIAN WRENN
Director
August 31, 2022
Marine Corps Base Camp Lejeune
Attn: Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeune, NC 28547
NORTH CAROLINA
Environmental Qualify
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 140601
SOF Sustainment Training Complex P1391
Onslow County
Dear Mr. Paul:
The Division of Energy, Mineral and Land Resources received a complete 8-year Permit Renewal Application for
the subject permit on August 10, 2022. The Division is hereby notifying you that permit SW8140601 has been
renewed, updated, and re -issued on August 31, 2022, as attached. Please be aware that the renewal and re -
issuance of this stormwater permit does not imply that the site is currently in compliance.
This permit shall be effective until July 1, 2030 and does not supersede any other agency permit that may be
required. The project shall be subject to the conditions and limitations as specified therein. This permit does not
impose new or increased stormwater control requirements; it clarifies the rules and requirements of this program
to provide you with a better understanding of your obligations under this permit. Failure to comply with these
requirements will result in future compliance problems. Please note that this permit is not transferable except
after notice to and approval by the Division.
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 concerning this permit, please contact Ashley Smith in the Wilmington Regional
Office, at [phone] or [e-mail].
Sincerely,
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\2014\140601 HD\2022 08 permit 140601
®E Jft,� 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
910.796.7215

Post -Construction Stormwater Management
Permit No. SW8 140601
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST -CONSTRUCTION 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
USMCB Camp Lejeune
SOF Sustainment Training Complex (North of Loop Road), P-1391
Loop Road, MARSOC, Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of three (3) sand filters in compliance with Session Law
2008-211 and the provisions of 15A NCAC 2H .1000 (hereafter collectively referred to as the
"stormwater rules") and as outlined in the application, approved stormwater management plans,
supplement, calculations, operation and maintenance agreement, recorded documents,
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"). The project shall be constructed, operated and maintained in accordance with these
approved plans and specifications. The approved plans and specifications are incorporated by
reference and are enforceable part of this permit.
This permit shall be effective from the date of issuance until July 1, 2030 and shall be subject to the
following specified conditions and limitations. 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 condition. 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.
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.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6 of this permit.
3. 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.
The project shall provide and maintain a 50' wide vegetated buffer adjacent to surface waters,
measured horizontally from and perpendicular to the normal pool of impounded structures, the
top of banks of each side of rivers and streams and the mean high water line of tidal waters.
Page 1 of 7

Post -Construction Stormwater Management
Permit No. SW8 140601
5. All runoff being directed into wetlands shall flow into and through those wetlands at a non -
erosive velocity of 2 fps or less.
6. The following design elements have been approved for this sand filter stormwater facility, and
must be provided in the system at all times.
BMP1
BMP2
BMP3
a. Draina a Area, acres:
2.60
0.72
2.12
On site ft :
113,256
31,363
92,347
Offsite, ft2.
0
0
0
b. Total Im ervious Surfaces, ft':
36,590
13,076
34,600
Onsite, ft W.
36,590
13,076
34,600
Future, ft:
0
0
0
Offsite, ft2.
0
0
0
c. Design Storm, inches:
3.68
3.68
3.68
d. Pre -development 1-yr, 24-hr
discharge rate, cfs:
4.47
1.24
3.64
e. Sediment Chamber Depth, ft:
2.25
2.20
2.00
f. Sediment Chamber Bottom Elev
excluding 12" of sediment storage,
fmsl:
11.00
21.00
14.00
g. Sediment Chamber Surface Area,
ftz:
1,158
271
1,285
h. Bottom of Pervious Weir Elevation,
fmsl:
11.00
21.00
15.00
i. Total Sand Chamber Depth, ft:
2.25
2.20
2.00
j. Sand Media Depth, ft:
1.5
1.5
1.5
k. Sand Chamber Bottom Elev, fmsl:
8.50
18.50
12.50
I. Sand Chamber Surface Area, ft :
1,270
337
1,001
m. Maximum Head on Filter, ft:
2.25
2.20
2.00
n. Permitted Storage Volume, ft':
7,797
2,520,
6,739
o. Orifice Diameter, inches:
&0
6.0
6.0
Orifice Flowrate, cfs:
0.91
0.37
0.85
q. Time to Draw Down, hr:
25.0
31.0
29.0
r. Seasonal High Water Table, fmsl:
6.30
14.70
9.20
s. Receiving Stream/River Basin:
UT to New River / White Oak
L Stream Index Number:
19- 27
u. Classification of Water Body:
SA, HQW
No direct discharges to SA waters are allowed. The underdrain discharge and the excess
design storm bypassed from the sand filter must be directed into a 50' vegetated filter strip and
level spreader, designed per Section .1008 (f) of the stormwater rules or to a vegetated area
capable of achieving effective infiltration of the runoff. The following design criteria have been
provided in the level spreader and vegetated filter strip and it must be maintained at this
design condition:
BMP1
BMP2
BMP3
a. Peak Discharge:
Design Storm, cfs:
4.23
1.16
3.37
10- r Storm, cfs:
7.90
2.20
7.00
b. Length of Level Spreader, ft:
90
30
80
c. Width of Vegetated Filter Strip, ft
50
50
50
d. Slope of Vegetated Filter Strip, W
2.00
2.00
2.00
It. SCHEDULE OF COMPLIANCE
The permittee is responsible for verifying that the proposed built -upon area for the entire
project does not exceed the allowable built -upon area.
Page 2 of 7

Post -Construction Stormwater Management
Permit No. SW8 140601
2. 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.
3. 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.
4. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately. Infiltration systems should not be used as erosion control
devices, due to the potential clogging. 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. 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.
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.
The permittee shall at all times provide the operation and maintenance necessary to assure
that all components of the permitted stormwater system function at the design condition. 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of filter media, bypass structures, orifice, catch basins
and piping.
g. Access to all components of the system must be available at all times.
8. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DEMLR. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
Page 3 of 7

Post -Construction Stormwater Management
Permit No. SW8 140601
9. 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.
10. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick,
stone, slate, coquina and parking areas, but does not include raised, open wood decking, or
the water surface of swimming pools.
III. GENERAL CONDITIONS
1. CORRECTIVE ACTIONS REQUIRED. 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.
2. PERMIT RENEWAL. 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).
3. CHANGES TO THE PROJECT NAME, PERMITTEE NAME OR CONTACT INFORMATION.
The permittee shall submit a completed Permit Information Update Application Form to the
Division within 30 days to making any one of these changes.
4. TRANSFER. This permit is not transferable to any person or entity except after notice to and
approval by the Director. Neither the sale of the project and/or property, in whole or in part, nor
the conveyance of common area to a third party constitutes an approved transfer of the permit.
a. TRANSFER REQUEST. The transfer request must include the appropriate application,
documentation and the processing fee as outlined in 15A NCAC 02H.1045(2). This
request must be submitted within 90 days of the permit holder meeting one or more of
the following:
i. A natural person who is deceased;
ii. A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved;
iii. A person or entity who has been lawfully and finally divested of title to the
property on which the permitted activity is occurring or will occur through
foreclosure, bankruptcy, or other legal proceeding.
iv. A person or entity who has sold the property, in whole or in part, on which the
permitted activity is occurring or will occur
V. The assignment of declarant rights to another individual or entity,
vi. The sale or conveyance of the common areas to a Homeowner's or Property
Owner's Association, subject to the requirements of NCGS 143-214.7(c2);
b. TRANSFER INSPECTION. 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. Records of maintenance activities performed to date may be
requested. Projects not in compliance with the permit will not be transferred until all
permit and/or general statute conditions are met.
5. COMPLIANCE. The permittee is responsible for compliance with the terms and conditions of
this permit until the Division approves the transfer request.
a. APPROVED PLANS AND SPECIFICATIONS. A copy of this permit, approved plans,
application, supplement, operation and maintenance agreement, all applicable
recorded documents, and specifications shall be maintained on file by the permittee at
all times.
Page 4 of 7

Post -Construction Stormwater Management
Permit No. SW8 140601
b. DIVISION ACCESS. The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project.
C. ENFORCEMENT. 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.
d. ANNUAL CERTIFICATION. The permittee shall electronically submit to the Division an
annual certification completed by either the permittee or their designee confirming the
projects conformance with permit conditions
e. OBTAINING COMPLIANCE. 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.
f. OTHER PERMITS. 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.
Permit renewed, updated and reissued this the 31 st day of August 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Cain '2P
3,,,-, Bnan�nDirect r
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 140601
Page 5 of 7

Post -Construction Stormwater Management
Permit No. SW8 140601
SOF Sustainment Training Complext (North of Loop Road) Page 1 of 2
Stormwater Permit No. SW8 140601
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,
(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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 6 of 7

Certification Requirements:
Post -Construction Stormwater Management
Permit No. SW8 140601
Page 2 of 2
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 sand filter elevations are per the approved plan.
6. The sand filter is located per the approved plans.
7. A trash rack is provided on the outlet/bypass structure.
8. For open sand filters, 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. Required drawdown devices are correctly sized and located per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a forebay, and
the vegetated filter.
15. The required dimensions of the system are provided, per the approved plan.
cc: NCDEQ-DEMLR Wilmington Regional Office
Page 7 of 7

Attachment C - Permitting History
SOF Sustainment Training Complex
Permit No. SW8 140601
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
7/1/2014
Original
Approval
1.0
construction, operation and maintenance of three (3) sand filters
in compliance with Session Law 2008-211 and the provisions of
15A NCAC 21H.1000
to clarify the design of the sand filters. The surface areas at the
top of the temporary pool elevation were presented in the
supplement and reflected in Sections 1.7.g, I, and q of this
permit instead of surface areas at the bottom of the temporary
3/27/2018
Correction
-
pool elevation. The design of the sand filters and the provided
volume are not changing. Please replace the previously issued
permit with the enclosed permit correcting Section 1.7. replace
the sand filter supplements enclosed with the pervious permit
with the corrected versions
8/31/2022
Renewal
2.0
Expires July I, 2030

Permit Number:
(io be provided by DWQ)
Drainage Area Number: - 3
Sand Filter 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.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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 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: ,w: , ,
Potential_ problem:
Flow I will remediate the ro6lemi
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
JECEIVE)JUN022014Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Pa 1 of 3
BY:

BMP element. -j ` :-_. , '
Potentialproblem: ,, ,, ,. ._
How I will remediate the.problem:
Filter bed and underdrain
Water is pending on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ends, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is dama ed
Re air or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
ECEIVE
JUN 0 2 20%
BY:
Form SW40I-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3

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:P-1391 SOF Sustainment Training Complex
BMP drainage area number:
Print name:
Title:Deputy Public Works Officer
Address:13lds, 1005 Michael Road Camp Leieune NC 28542
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.
requirements.
a Notary Public for the State of
Jam,) , do hereby certify that
personally appeared before me thisov day of
and acknowledge the due executions ff tthe for�/ ing arrd to
Witness my hand and official seal,
MJ
ETTE
c
ty
Carolina
M ��J
SEAL
My commission expires
ECEBVE
JUN 0 2 2014
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3

11
i l
a`.
Permit Number.
(to be provided by DWQ)
Drainage Area Number: -
Filter Strip, Restored Riparian Buffer and Level Spreader
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.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
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 1 will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The Flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
11 ECEI Hi' E
JUN 0 2 2014
BY:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3

BMP element:
Potential roblem:
How I will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
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.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
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.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3
ilECEOV
JUN 0 2 2014
BY:— Page 2 of 3

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:P-L391 SOF Sustainment Training Complex
BMP drainage area number:
Print name:Neal Paul
Title:Deputy Pubile Works Officer
Address:Blda 1005 Michael Road Camp Leieune NC 28542
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.
x4fell , a Notary Public for the State of
County of t�oy , do hereby certify that
A,- personally appeared before me this c�
day of and acknowledge the due execution of the
forgoing rlter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
ALICE A. BONNETTE
Notary Public
Onslow County
State of North Caro 1 of�l'
M rommlealon Ire
SEAL ,ECEEVE
My commission expires cl ✓ /' JUN 0 2 2014
BY:
Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev3 Page 3 of 3

UtMLH USE: ONLY
i� Date Tecgived
IFee Paid
Permit Number
61 10 V
1'J'
FI.Jea 505 �
1 309 0 D
NC DEG Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
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 140601
2. Project name: SOF Sustainment Training Complex P1391
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?
If the project has changed from the original approved plans, please complete SWU-101 fora Major
Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/abouUdivisions/energy-
m ine ral-land-resou rces/e ne rgy-mineral-land-rules/stormwate r-p rog 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/abouUdivisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/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 Leieune 1005 Michael Rd.
City: MCB Camp Leieune State: NC
ZIP: 28547-2521
5. Street Address:
City: State: ZIP
6. Phone: [phone] Email: [e-mail]
AUG 10 2022
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:
MCT 1. A permit application processing fee of $505.00 payable to NCDEO.
MCT 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
I. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
MCT 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.
MCT 4. O&M Agreements, Please select one:
® I 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.
MCT 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 certifications) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
MCT 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/bv title/ Business Registration
AUG 10 2022
sff
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PER IIT,-T_E1E'S/�CERTIFICATION
I, 61 T' I I tO^>kr , the person legally responsible for the permit, certify that I have
a copy of 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 area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All 1pformkation provided on this permit renewal application is, to the best of my
Signature:
NOTARIZATION:
Nov 4nA l lAUO W1Vla_ 1 _ , County of
C W that I(.l�!`! t!'k w 6w
this the day of USA
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature:
My commission expires
91
Date: 9 ) u"
a Notary Public for the State of
do hereby certify
personally appeared before me
20�, and acknowledge the due
`�tttturr��
��`*NOTARy�
PUB%-\o
AUG 101011 IJ
ev.
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

5�rrb i�l�ca�ol
AMA
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
vro)ect name
Contact name
Phone number
Date
Drainage area number
The purpose of the LS-VFS
Stormwater enters LS-VFS from
Type of VFS
Explanation of any -Other' responses above
If Stormwater Enters the LS-VFS from the Drainage Area
P-1391 SOF SUSTAINMENT TRAINING COMPLEX
Crystal Hill
(804) 2854171
June 19, 2014
ABMP:-
Engineered filter strip (graded &'sodded, slope <8%)
O2o wgfgoa
Drainage area
; fe
Do not complete this section of the form.
Impervious surface area
- - ffz
Do not complete this section of the form.
Percent impervious
%
Do not complete this section of the form.
Rational C coefficient
Do not complete this section of the form.
Peak flow from the 1 inlhr storm
cis
Do not complete this section of the form.
Time of concentration
;. min
Do not complete this section of the forth.
Rainfall intensity, 10-yr storm
inlhr
Do not complete this section of the form.
Peak flow from the 10-yr storm
cfs
Do not complete this section of the form.
Design storm
10-year storm
Maximum amount of flow directed to the LS-VFS
cfs
Do not complete this section of the form.
Is a flow bypass system going to be used?
`: (Y or N)
Do not complete this section of the form.
Explanation of any -Other' responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Other: Explained below - -
Peak discharge from the BMP during the design storm
4.23 '
cts
Peak discharge from the BMP during the 10-year storm
7.9
'.' cfs
Maximum capacity of a 100-foot long LS-VFS
10
cfs
Peak flow directed to the LS-VFS
8.62
cis
Is a flow bypass system going to be used?
Y _,-
:.:: (Y or N)
Explanation of any "Other" responses above
Sand Filter with
Underdrams
JECEIVE
JUN 2 0 2014
BY:
Form SW401 - LS-VFS - 29June2012 - Rev.10 page / of 3

LS-VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feel of level lip needed per cis
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
y (flow depth for 10-year storm)
freeboard (during the 10-yearstorm)
Peak velocity in the channel during the 10-yr stomp
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other responses above
sq ft
10 fticfs
86 ft
90
ft
50
It
I 9.00
fmsl
8.00
tmsl
2.00
%
N
(Y or N) OK
N
(Y or N)
( N (Y or N)
N (Y or N)
(:ft
Ifl
I ft
I ft
i ft
ft/sec:(Pick one:
(Y or N)
'(Y or N)
i
F'ECEIVE
JUN 2 0 2014
BY:
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 2 of 3

III.. REQUIRED ITEMS CHECKLIST
EDIT 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.
Requried Item:
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 ooeffcient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details (1' = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and lop of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader (V = 20' or larger) showing:
- Underdmin system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment unfit the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
&. A copy of the signed and notarized operation and maintenance (0&M) agreement.
Forth SW 401 - LS-VFS - 29June2012 - Rev.10
Lpo-
Page or plan sheet number and any notes:
ECEOVE
JUN 2 0 2014
BY:
page 3 013

•
Permit Number. J IJ�O�I
(fo be provided by DWQ)
_
O��F WA7FgOG
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the 1&M Agreement (Section IV)
1. PROJECT INFORMATION
Project name
P-1391 SOF SUSTAINMENT TRAINING COMPLEX
Contact name
Crystal Hill
Phone number
[phone]
Date
March 20, 2018
Drainage area number
1
II. DESIGN INFORMATION
Site Characteristics
Drainage area (Au)
113,256.00 ftz OK
Impervious area
36,590.00 ft'
% Impervious (IA)
32.3% %
Design rainfall depth (Ro)
1.50 in
Peak Flow Calculations
"
1-yr, 24-hr runoff depth
3.68 in
1-yr, 24-hr intensity
0.15 in/hr
Pre -development 1-yr, 24-hr runoff
4.47 ft'/sec
Post -development 1-yr, 24-hr runoff
6.96 ft'/sec
Pre/Post 1-yr, 24-hr peak control
2.49 ft'Isec
Storage Volume
Design volume (WQV) 7,526.00 ft3
Adjusted water quality volume (WQVA,i) 5,644.50 ft'
OK
Volume contained in the sedimentation basin and on top of the sand filter 7,797.00 ft'
Top of sand filter/grate elevation 13.25 ft amsl
Weir elevation (between chambers) 13.25 ft amsl
Maximum head on the sedimentation basin and sand filter (hNa„r„�,) 2.25 ft OK
Average head on the sedimentation basin and sand filter (hA) 1.13 ft OK
Runoff Coefficient (Rv) 0.34 (unitless)
Type of Sand Filter
Open sand filler?
SHWT elevation
Bottom of the sand filter elevation
Clearance (ds,, -,)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dSMT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dspa,)
Y YorN
6.30 ft amsl
8.50 If amsl
2.20
N YorN
It amsl
It amsl
EICIWE
MAR 2 6 201B
Form SW401-Sand Filter-Rev.5 2009Sept77 Parts I and II. Project Design Summary, Page 1 of 2

Permit Number.
(,•o be provided by DMO)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter -
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bedldrain elevation
Depth of the sand media filter bed (dr)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargeiflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsa,)?
What is the depth of sand over the outlet pipe (dpipe)?
1,158.00 ftZ 4 vn, rvicma uuuu nuJu, JUL Iay Iccu w ue uwi caacu w
2.20 ft
1,270.00 ft' V vn. IVI=C uw iuuuni, um ivay iieeu wJuc ic.ucaacu w
11.00 ft amsl
9.50 ft amsl
1.50 It
3.50 (ftday)
U0 in
0.91 ft'"/sec -P
25.00 hours * OK. Submit drainage calculations.
1.04 days V(
Y
YorN
OK
y
Y or N
OK
Y
YorN
OK
50,00 ft
y
YorN
OK
Y
YorN
OK
Y
YorN
OK
y
YorN
OK
N
Y or N
Insufficient ROW location
33.00 It
OK
1.50 It
OK
* caffecvk_�
MAR 262018
Form SW401-Sand Filter- Rev .5 2009Septl7 Parts I and 11, Project Design Summary, Page 2 of 2

5V4 1Nz)(,,0J
QA
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
jV
o1121e^�p.1W�/^AT,��\, � Cy
0
I.'.P,ROJECTiINFORMATIONR-"
Project name P-1391 SOFSUSTAINMENT TRAINING COMPLEX
Contact name Crystal Hill
Phone number '(804) 2854171
Dale 'June 19, 2014
Drainage area number 2
The purpose of the LS-VFS
SW. Rule Diffuse tlow at the end of a swale mschargmg tosnwaters
Stormwater enters LS-VFS from
A BMP
Type of VFS
Engineered filter ship ,(graded & sodded, slope .<8%).
Explanation of any 'Other' responses above
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area
fe
Do not complete this section of the form.
Impervious surface area
fit?
Do not complete this section of the form.
Percent impervious
%
Do not complete this section of the tonn.
Rational C coefficient
Do not complete this section of the form.
Peak flow from the 1 m/hr stone
cis
Do not complete this section of the form.
Time of concentration
min
Do not complete this section of the form.
Rainfall intensity, 10-yr storm
" inlhr
Do not complete this section of the fort.
Peak flow from the 10-yr stone
cis
Do not complete this section of the form.
Design storm
;10-year storm
Maximum amount of flow directed to the LS-VFS
cis
Do not complete this section of the form.
Is a flow bypass system going to be used?
- _ (Y or N)
Do not complete this section of the form.
Explanation of any 'Other' responses above
-
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Other. Explained below
Peak discharge from the BMP during the design storm
1.16
cis
Peak discharge from the BMP during the 10-year storm
' 2.2
cis
Maximum capacity of a 100-foot long LS-VFS
10
cfs
Peak flow directed to the LS-VFS
"' 264
cis
Is a flow bypass system going to be used?
Y
"(Y or N)
Explanation of any 'Other" responses above
Sand Fi terwith Underdrams I1 IL. I
ECENVE
JUN 2 0 2014
BY -
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 1 of 3

LS-VFS Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per cfs
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (Flow depth for 10-year stone)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any "Other responses above
sq ft
in
in
10
fvcfs
26
ft
1 30
ft
50
Ift
{ 16.00
fmsl
15.00
fmsl
2.00
%
N
,(Y or N) OK
{ N
,(Y or N)
N yY or N)
N '(Y or N)
l%r
ECEI b
JUN 2 0 2014Hill
BY:
Form SW 401 - LS-VFS - 29June2012 - Rev.10 page 2 of 3

III. REQUIRED ITEMS CHECKLIST
EDIT 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.
Requried Item: Initials Page o_ r plan sheet number and any notes:
1. Plans (V - 50' or larger) of the entire site showing: -0TILL_ C-301
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details (1' = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader (1' = 20' or larger) showing:
- Underdmin system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from CP9
sediment unfit the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing NA
that no draws are present. �n
7. The supporting calculations. `P µ ATTACHED
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
JUN 2 0 2014
BY:
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 3 of 3

0' -
Permit Number. �JV%1
(to be provided by D WCy
gp
NC®ENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the I &M Agreement (Section IV)
I. PROJECT INFORMATION
Project name P-1391 SOF SUSTAINMENT TRAINING COMPLEX
Contact name Crystal Hill
Phone number [phone]
Dale -March 20, 2018
Drainage area number
II. DESIGN INFORMATION - Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
Peak Flow Calculations
1-yr, 24-hr runoff depth
31,363.00 ftZ
13,076.00 ft'
41.7% %
1.50 in
3.68
1-yr,24-hrinlensity
0.15 in/hr
Pre -development 1-yr, 24-hr runoff
1.24 ft'/sec
Post -development 1-yr, 24-hr runoff
2.08 It3/sec
Pre/Post 1-yr, 24-hr peak control
0.84 It3isec
Storage Volume
Design volume (WOV)
2,500.00 ft3
Adjusted water quality volume (WOVAJ
1,875.00 ft'
Volume contained in the sedimentation basin and on lop of the sand filter
2,520.00 ft3
Top of sand filter/grate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter
Average head on the sedimentation basin and sand filter (h,)
Runoff Coefficient (Rv)
Type of Sand Filler
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHw,)
Closed/pre-cast sand filler?
SHWT elevation
Bottom of the sand filler elevation
Clearance (its,,-,)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (ds,a�)
OK
OK
23.2 ft amsl
23.2 ft amsl
2.20 ft OK
1.10 ft OK
0.43 (unitless)
Y YorN
14.70 it amsl
18.50 ft amsl
3.80
N YorN
ft amsl
ft amsl
MAR 2 6 2V!
1s
Form SWQOLSand Filter-Rev ,5 2009Sept 17 Pads I and II. Project Design Summary, Page 1 of 2

Permit Number.
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filler
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filler bed (dr)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filler (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Ws,,)?
What is the depth of sand over the outlet pipe (dpipe)?
271.00 ft'
2.20 It
337.00 it 4
21.00 ft amsl
19.50 ft amsl
1,50 ft
3.50 (ftlday)
6.00 in
0.14 ft3lsec
31.00 hours 4L
1,29 days 1111,
vn. Iviec m II III u I IU In, Out n iay I ICCU " uc In,I I.
Vo,. IVIGCw I III I III I I u 11II, UUI II Idy IICCU LU OC IriU CdbCU w
OK. Submit drainage calculations.
Y YorN
OK
Y YorN
OK
Y YorN
OK
50.00 it
Y YorN
OK
Y YorN
OK
Y Y or N
OK
Y YorN
OK
N Y or N Insufficient ROW location.
24.00 ft OK
1.50 ft OK
46 co"JQA
MAR 2 6 2016
eM
Form SW401-Sand Filter -Rev ,5 2009Septl7 Parts I and 11. Project Design Summary, Page 2 of 2

, 4
' IA O2o WNFA�`
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
rrofeciname
r-Sa our:ouotAumVIOVI InnIII wUUUIVIrLCA
Contact name
Crystal Hill
Phone number
(804)2854171
Dale
June 19 2014
Drainage area number
3'1
The purpose of the LS-VFS
SW Rule: Diffuse flow at the end of a Swale discharging to SA waters
Stormwater enters LS-VFS from
A BMP
Type of VFS
Engineered filter strip (graded & sodded slope <.8%)
Explanation of any 'Other' responses above
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area
- , f?
Do not complete this section of the form.
Impervious surface area
' flz
Do not complete this section of the form.
Percent impervious
%
Do not complete this section of the form,
Rational C coefficient
Do not complete this section of the form.
Peak flow from the 1 inlhr storm
cfs
Do not complete this section of the form.
Time of concentration
min
Do not complete this section of the form.
Rainfall intensity, 10-yr storm
^ inlhr
Do not complete this section of the form.
Peak flow from the 10-yr storm
cfs
Do not complete this section of the form.
Design storm
10-year storm
Maximum amount of flow directed to the LS-VFS
cfs
Do not complete this section of the form.
Is a flow bypass system going to be used?
'- (Y or N)
Do not complete this section of the form.
Explanation of any 'Other responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Other Explained below
Peak discharge from the BMP during the design storm
3.37
cfs
Peak discharge from the BMP during the 10-year storm
7
cfs
Maximum capacity of a 100-foot long LS-VFS
10
cfs
Peak flow directed to the LS-VFS
` 6.75
cfs
Is a flow bypass system going to be used?
Y
(Y or N)
Explanation of any 'Other" responses above
Sand Filter with
Underdrains
rjECERVE
JUN 2 0 2014
BY: -
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 1 of 3

LS-VF$ Design
Forebay surface area
Depth of forebay at stormwater entry point
Depth of forebay at stormwater exit point
Feel of level lip needed per cts
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at downslope base of level lip
Elevation at the end of the VFS that is farthest from the LS
Slope (from level lip to the end of the VFS)
Are any draws present in the VFS?
Is there a collector swale at the end of the VFS?
Bypass System Design (if applicable)
Is a bypass system provided?
Is there an engineered flow splitting device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 10-year stone)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10-yr storm
Channel lining material
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Explanation of any 'Other" responses above
sq it
in
in
10
ft1cfs
68
it
80
;it
50
It
12.00
fmsl
11.00
;fmsl
2.00
N
(Y or N)
N
,(Y or N)
I- N (Y or N)
N (Y or N)
U'
♦ I4
OK
ECEU 4C E
JUN 2 0 2014
BY:----_
Form SW 401 - LS-VFS - 29June2012 - Rev.10 page 2 of 3

III. REQUIRED ITEMS CHECKLIST
EDIT 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.
Requded Item:
1. Plans IV -50' or larger) of the entire site showing:
- Design at ultimate build -out,
- OH -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details It' = 30' or larger) for the level spreader showing: v b
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader (1' = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from C9 r'
sediment until the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
&. A copy of the signed and notarized operation and maintenance (0&M) agreement.
C-509
or plan sheet number and any notes:
ECEOVE
JUN 2 0 2014
BY:
Form SW 401 - LS-VFS - 29June2012 - Rev.10 page 3 of 3

S
Permit Number.
no be provided by DWw
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION.
Project name P-1391 SOF SUSTAINMENT TRAINING COMPLEX
Contact name
Phone number
Date
Drainage area number
11. DESIGN INFORMATION
Site Characteristics
Crystal Hill
[phone]
March 27, 2018
Drainage area (Au) 92,347.00 It OK
Impervious area 34,600,00 ft2
% Impervious (IA) 37.5% %
Design rainfall depth (Ro) 1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.68
in
1-yr, 24-hr intensity
0.15
in/hr
Pre -development 1-yr, 24-hr runoff
3.64
ft3/sec
Post -development 1-yr, 24-hr runoff
5.91
It3/sec
Pre/Post 1-yr, 24-hr peak control
2.27
ft'/sec
Storage Volume
Design volume (WOV)
6,684.00 ft3
Adjusted water quality volume (WOV,,)
5,013,00 ft3
OK
Volume contained in the sedimentation basin and on top of the sand filler
6,739.00 ft'
Top of sand filter/grate elevation
17 ft amsl
Weir elevation (between chambers)
17 ft amsl
Maximum head on the sedimentation basin and sand filter (hh,,,,r,A,J
2.00 ft OK
Average head on the sedimentation basin and sand filter (hA
1.00 ft OK
Runoff Coefficient (Rv)
0.39 (unitless)
Type of Sand Filler
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (ds,,-,)
Closedlpre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsewr)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (ds,,$)
Y YorN
9.20 It amsl
12.50 It amsl
3.30
N YorN
It ani
ft amsl
9� MAR 272018
Qf WA�-TTFy\\(\�1G
Form SW401-Sand Filter -Rev .5 2009Sept77 Parts I and II. Project Design Summary, Page r of 2

Permit
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (A:)
Top of sand media filter bed elevation
Bottom of sand media filter bedldrain elevation
Depth of the sand media filter bed for)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filler?
Is an off-line flow -splitting device used? -
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed through a vegetated filler?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (5011 if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3.1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsj?
What is the depth of sand over the outlet pipe (dpipe)?
1,285,00 it viccia ur nidy nccu w ue niucdxu w vn. iuuuuumu,
2.00 ft
1,001.00 ftZ _ : ` mn,, JUL iudy uccu w uc niu cdacu w vn rviccm um i II
.:__. ...... __ :. ____..._-_--._____
15.00 ft amsl
13.50 ft amsl
1.50 ft
3.50 (fYday)
6.00 In
0.41 ft'/sec
9Q
29.00 hours
OK, Submit drainage calculations.
1.21 days
Y
YorN
OK
Y
YorN
OK
Y
YorN
OK
50.00 ft
Y
YorN
OK
Y
YorN
OK
Y
Y or N
OK
Y
Y or N
OK
N Y or N Insufficient ROW location.
21.50 ft OK
1.50 It OK
I COVE
ij MAR 21 2018
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2