SW8130104_CURRENT PERMIT_20220914

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 1I W 0 `t
DOC TYPE
0 CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2 0 2-Z ( 1O i
YYYYMMDD

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
September 14, 2022
Marine Corps Base Camp Lejeune
Attn: Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeune, NC 28547
NORTH CAROLINA
Environmental Quality
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 130104
P-705 Hangar and Apron Expansion
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 18, 2022. The Division is hereby notifying you that permit SW8130104 has been
renewed, updated, and re -issued on September 14, 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 May 10, 2029 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,
C.", WN
(,Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
copy of the Renewal Application Documents
DES/ams: %Stormwater\Permits & Projects\2013\130104 HD\2022 09 permit 130104
cc: Wilmington Regional Office Stormwater File
;v North Carolina Department of Environmental Quality i Division of Energy. Mineral and land Resources
�fJ%t Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
watt awn
��•�� 910.796.7215

Post -Construction Stormwater Management
Permit No. SW8 130104
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
US MCB Camp Lejeune
P-705 Hangar and Apron Expansion
End of White Street, Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of six (6) sand filters and a Rainwater Harvesting System 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 May 10, 2029 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
1. This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6, 1.7, and 1.8 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.
4. The project shall 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.
5. All runoff being directed into wetlands shall flow into and through those wetlands at a non -
erosive velocity as established by the 401/404 wetlands group.
Page 1 of 7

Post -Construction Stormwater Management
Permit No. SW8 130104
The following design elements have been approved for the sand filter stormwater facility, and
must be provided in the system at all times.
SAND FILTER #
A
B
C
D
E
F
a.
Drainage Area, acres:
4.56
4.58
4.19
4.36
3.43
1.13
Onsite, ft2:
186,594
164,383
148,822
155.800
143,680
49,119
Offsite, ft2:
11,907
35,028
33,833
34,005
0
0
b.
Total Impervious Surfaces, ft2:
168,965
186,009
173,488
181,065
134,882
45,991
Buildings, ft2:
0
0
0
0
0
0
Roads/Parking, ft2:
152,494
146,798
135,472
142,877
130,331
44,478
Sidewalk, ft2:
436
0
0
0
0
0
Other, ft2:
4,128
4,183
4,183
4,183
4,551
1,513
Existing, ft2:
11,907
35,028
33,833
34,005
0
0
Offsite, ft2:
0
0
0
0
0
0
c.
Design Storm, inches:
1.5
1.5
1.5
1.5
1.5
1.5
d.
Sediment Chamber SA, ft2:
2,158
2,158
2,158
2,158
2,608
806
e.
Sand Chamber SA, ft2:
1,461
1,461
1,461
1,461
1,434
525
f.
Top of Sand Elevation, ft2:
14.5
12.9
13.05
11.59
12.0
10.9
g.
Maximum Head on Filter, feet:
4.3
4.85
4.4
4.65
3.25
3.25
h.
Bypass Weir Elevation, fmsl:
18.8
17.75
17.45
16.24
15.25
14.15
i
Permitted Storage Volume, ft3:
15,202
17,192
15,564
16,469
12,702
4,191
j.
Underdrain #/ O"
2@4"
2@4"
2@4"
2@4"
2@4"
2@4"
k.
Time to Draw Down, hours:
<40
<40
<40
<40
<40
<40
I.
SHWT fmsl
1T5
19.0
19.0
17.5
15.25
15.25
m.
Receiving Stream / River Basin:
Southwest Creek / White Oak
n.
Stream Index Number:
19-17-(6.5)
o.
Classification of Water Body:
"C1.
A Rainwater Harvesting System has been approved for Drainage Area G, subject to the
following criteria:
a. Drainage Area, square feet: 60,851
b. Impervious Surfaces, square feet: 60,851 (roof)
c. Design Storm, inches: 1.5
d. Cistern volume provided, gallons: 100,000
e. Dedicated Use: Aircraft Wash Water
f. Excess design storm is diverted to a level spreader and vegetated filter strip.
8. The runoff from a total of 114,773 square feet of pre-1988 impervious area from the existing
apron is being collected and treated in the proposed sand filters. This impervious area is noted
in Section IV.10 of the application as "Existing Offsite". In exchange, a like amount of
proposed impervious area will not be treated. With the issuance of this permit, a total of
111,838 square feet of proposed impervious area in drainage areas H, I and J is approved and
not being treated by any BMP, which leaves 2,935 square feet remaining and available for
future trade-off, subject to approval by the Division. The terms of the trade-off are: 1) that the
proposed impervious area maintains an equal or greater buffer width adjacent to surface
waters than the buffer for the existing impervious area being treated; and, 2) No new piped
discharges to surface waters are created as a result of the proposed "trade-off' impervious
area.
II. SCHEDULE OF COMPLIANCE
The permittee is responsible for verifying that the proposed impervious area for the entire
project does not exceed the allowable impervious area.
Page 2 of 7

Post -Construction Stormwater Management
Permit No. SW8 130104
2. 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.
q. Other modifications as determined by the Director.
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 impervious 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, the permittee shall cause a certification from an appropriate
designer for the system installed to be submitted, 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.
Page 3 of 7

Post -Construction Stormwater Management
Permit No. SW8 130104
6. 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.
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.
8. 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.
9. Impervious 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.
Ill. 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;
Page 4 of 7

Post -Construction Stormwater Management
Permit No. SW8 130104
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.
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.
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.&
Permit renewed, updated and reissued this the 14th day of September 2022.
NORTH CAROLIINNA ENVIRONMENTAL MANAGEMENT COMMISSION
- & L
Brian Wrenn, Ditor
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 130104
Page 5 of 7

Attachment A
Post -Construction Stormwater Management
Permit No. SW8 130104
P-705 Hangar and Apron Expansion
Stormwater Permit No. SW8 130104
Onslow County
Designer's Certification
Page 1 of 2
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

Post -Construction Stormwater Management
Permit No. SW8 130104
Certification Requirements:
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
impervious area.
3. All the impervious 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. Elevations of the BMP are per the approved plan.
6. BMP is located per the approved plans.
7. A trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation. (Does not apply to underground
sand filters)
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 number and type of plantings are provided.
16. 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
P705 Hangar and Apron
Permit No. 5W8 130104
Approval '
permit Action
BIMS
Description of the Changes
Date
Version
1/25/2013
Original
1.0
Low Density
Approval
Low Density to High Density, 5 Sand Filters (DA's A-E)
& 1 Rainwater Harvesting System (DA G) (2008-211
5/10/2013
Major
Rules)
Modification1.1
DA H & DA I: untreated due to BUA exchange by
treating pre-1988 BUA in other DA's
1. Drainage Area E: Due to the expansion of the
apron, a portion of the offsite drainage area and offsite
Major
existing pre-1988 impervious area previously located
6/17/2014
Modification
1.2
within to Drainage Area E had to be redirected to bypass
the sand filter. Therefore Drainage Area E and the
associated impervious area have been reduced.
2. Drainage Area F: Due to the expansion of the
apron, additional impervious area and associated onsite
drainage area will be treated in the new sand filter
associated with Drainage Area F.
3. Pre-1988 impervious area: Due to the reduction in
the amount of offsite existing pre-1988 impervious area
being treated in Drainage Area E, the total amount of
existing, pre-198. treated impervious area available for
the exchange of new, untreated impervious area is being
reduced. Please refer to Section 1.9 for details.
4. Drainage Area J: The impervious area proposed as
part of this drainage area will not be treated and will
reduce the amount of new, untreated impervious area
available for future development as described in the
trade agreement referred to in item 3 above and as
described in Section 1.9 of the permit.
Minor
Removal of a portion of DA 1 (2 acre area removed will
3/11/2021
Modification
1.3
be covered by SW8 210203)
9/14/2022
Renewal
2.0
Expires May 10, 2029
Page 1 of 1

Permit Number h �7 �
(to be provided by DIVQl
Drainage Area Number: A
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 (or1.5 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 I will remediate the problem
Entire BMP
Trash debris is present.
Reprove 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 -lime 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
damn e 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
im gads to streams or the BMP.
Erosion has occurred.
Provide additional erosion protection such
as reinforced turf matting or riprap it
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.
Form SW401-Sand Filter O&M-Rev.4 2009Scpt17
ECO V
APR 10 2013
Page I of 3

BMP element:
Potentialproblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding 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 lop few inches of
filler bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair 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 at919-733-1786.
1ECEI V
APR 10 2013 0
Form SW401-Sand Filter O&M-Rev.4 2009Scpt17 Page 2 of 3

Pemut Number:
(to be provided by DIVO)
l 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:P705 HANGAR AND APRON
BMP drainage area number:
Print name:Neal Paul
Title:Deouty Public Works Director
Address:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
1, a Notary Public for the State of
r��AV\ \ County of '61nJ do hereby certify that
pp
Ns� ?m� personally appeared before me this � day of
WL , JA� and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official
KELLEY VANDECOEVERINO
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA p
SEAL
My commission expires����1�
ECEIVE
APR 10 2013
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3

Permit Numbcr:
(!a be pr/owided by D:7Q)
Drainage Area Number: 6
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:
Potentialproblem;
How I will remediate the problenc.
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 it ground cover and
water until it is established. Provide time
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 oflsite.
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 malting 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.
ECEI!! E
Form SW401-Sand Fitter O&M-Rev.4 2009Septl7 APR 10 2013 Page I Of 3
ov.

BMP element: -
'Potentialproblem:
How I will remediate theproblem:
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
filler 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 damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred al the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
%=`! ,F_I V
APR 10 2013
Page 2 of 3

Permit Number:
(to be prorided by DIM)
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 narae:P705 HANGAR AND APRON
BMP drainage area number:SF-B
Print
Title:Deputy Public Works Director
Address:1005 Michael Road
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
1, wlikw\ \ T:ky I.T� '<JVAV wj , a Notary Public for the State of
yy��
County of t)V`bj(�/ , do hereby certify that
a2 personally appeared before me this day of
7�V ) and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official, eal,
KELLEY VANDECOEVERINpp
NOTARY PUBLIC [Bp ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
I � �
Form S W401-Sand Filter O&M-Rev.4 2009Sepi 17
FQ. EIVE
APR 10 2013
BY:
Page 3 of 3

...
Permit Number:
(to be provided b,v DIVO)
Drainage Area Number: C
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 (orl.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 I will remediate theproblem:
Entire BMP
Trash/debris is present.
Remove the trash debris.
Adjacent pavement (if
Sediment is present on lire
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 -lime 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 orriprap 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.
Form SW401-Sand Filter O&M-Rev.4 2009Sept 17
IECEIVE
APR 10 2013 page I of 3

BMP element:
Potentialproblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding 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 lop few inches of
filler bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damn 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.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
APR 10 2013
Page 2 of 3

Permit Number:
yo 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.
Prgjecr nanre:P705 HANGAR AND APRON
BMP drainage area number:SF-C
Print name:Neal Paul
Title:Deputy Public Works Director
Address:1005 Michael Road
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.
I, , a Notary Public for the State of
Aq County of L/t/Cpl61^--) do hereby certify that
personally appeared before me this Q) day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Wimess my hand and official seal,
NOTARY PUBLIC
ONSLOW COUNTY
e OF NORTH CARO
SEAL
My commission expires ON
;r q- V�
APR 10 2013
BY:----'
Form SW40I-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3

�!u 81-3 y
Permit Number:
(to be provided by D[VQ)
Drainage Area Number:_
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 (or1.5 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 I will remediate the roblem:
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 time
and a ono -lime fertilizer application.
Vegetation is too short or ion 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.
FECEIVEn
Form SW401-Sand Filter O&M-Rev.4 2009Sept 17 APR 10 2013 Page I of 3
NY•

BMP element: -
Potential roblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding 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
ponds, then consult an expert.
Outlet device
Clogging, has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair 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.
r-f FIVE
All 10 2013
BV:
Foam SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3

Permit Number:
(to be provided by DWO)
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:P705 HANGAR AND APRON
BMP drainage area number:
Print name: Neal Paul
Title:Deputy Public Works Director
Address:1005 Michael Road
Date: ll� IV UMC�) y
Note: The legally responsible party should not be a homeo%%ners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
County of L/Vfb P-l/' do hereby certify that
10
personally appeared before me this day of
�, and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
KELLEY VANDECOEVEOIN
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires I
IMF
r7l-'Z�EUVE
APR 10 2013
H4;
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 page 3 of 3

0` -
Permit Number:
(to be provided b}' DWQ)
Drainage Area Number: e
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 (or1.5 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 I will remediate the problem
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 time
and a one -tine 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 arc present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
ECEI 9/
APR 10 2013
By:-----
Page I of 3

BMP element:
Potentialproblem:
How I will remediate the problem
Filter bed and underdrain
Water is ponding 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
filler bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair 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.
F—CEIVErs
APR 10 2013 0
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3

Permit Number:
(to be provided by DWO)
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 nanie:P705 HANGAR AND APRON
BMP drainage area
Print name:Neal Paul
Title:Deputy Public Works Director
Address:1005 Michael Road
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.
I, „jt ,kt� \ VI—kN 'UW_k,UUV V-W VV rj a Notary Public for the State of
County of U V t -01 Uw , do hereby certify that
personally appeared before me this d — day of
JI /• and acknowledge the due execution of the forgnine card filter
maintenance requirements. Witness my hand and official seal,
E
EYVANDEC0Evtkj, QNOTARY PUBLIC
0 SLOW.000NTy
TE 0- AJOPT�' CAROLINA
SEAL
My commission expires
Form SW401-Sand Filler O&M-Rev.4 2009Sept 17
EC97OVE
i APR 10 I'll
Page 3 of 3

Permit No.
(to be provided by DWQ)
IIh;: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.
Initials Pagel Plan
Sheet No.
CFC
0006
C610 l
e6/03
C6ws
C6107
C C
�506
"'Sly
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
_ Rn,inrlo rive of droinnno oncomonf
2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
filter
Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SHWT elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
annlir:ahle).
Crc Av F 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
CrC 5. Supportinq calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) aqreement
I 7. A copy of the deed restrictions (if required).
V,cF_1VEn
APR 10 2013
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number:
(to be provded by DIVQ)
Drainage Area Number: r
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•.
Potentialproblem:
How Iwill .remediate the,problem:
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
depth of greater than six inches.
Search for the source of the sediment and
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 s ra in .
Form S W401-Sand Filter O&M-Rev.4 2009Sept 17
F =GF
JUN 0 6 20%
BY:-- -
Page 1 of 3

BMP element: `
Potentialproblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding 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
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair 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.
CEIVEfi
16
JUN 0 6 2014
By:-------
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3

Permit Number:
be prorided by DuV)
I acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior
to any changes to the system or responsible party.
Project name:P705 HANGAR AND APRON
BMP drainage area number:SF-F
Print name
Title:Deputy Public Works Director
Address:1005 Michael Road
Note: The legally responsible parry 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.
M
maintenance requirements
a Notary Public for the State of
County of. Mi , do hereby certify that
personally appeared before me this �_ day of
t� and acknowledge the due execution of t
Witness my hand and official seal
KELLEY VANDECIDEVERIN01
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires amcw U
sand filter
ECEAVE .
JUN 0 6 2014
6Y: _—
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 3 of 3

permit Number:
(to be provider by DWQ)
Drainage Area Number
Rainwater Harvesting System
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 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 reuse volume.
— 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.
— If the outlet is metered, use must be recorded at a minimum of monthly. These
records shall be kept on site for inspection by DWQ.
The system will be inspected by the owner/operator at least monthly and within 24
hours after each rain event. 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:
Potentialproblems:
How to remediate theproblem;
The entire system
A component of the system is
Makc any necessary repairs or replace if
danra ed or leaking.
damage is too large for repair.
Water is flowing out of the
Check system for clogging and damage. Repair
overflow pipe during a
as needed so the design volume is stored
design rainfall or smaller
properly without discharging during, a design
(usually a 1" or la" rainfall).
storm.
Check that the pump is operating properly and
that the water is actually being used at the
volume designed.
If it is still not operating properly, then consult
an expert.
The captured roof area
Excess debris or sediment is
Remove the debris or sediment as soon as
resent on the rooftop.
possible.
The gutter system
Gutters are clogged, or water
Unclog and remove debris. May need to install
is backing up out of the
gutter screens to prevent future clogging.
utters stem.
Rooftop runoff not making it
Correct the positioning or installation of gutters.
into gutter system.
Replace if necessary to capture the roof runoff.
EVEI V E
Form SW401-Rainwater Harvesting O&M-Rev.l ge I of 3
APR 10 2013
gv:____

Permit Number:
(to be provided by DDPO)
Drainage Area Number:
BMP element:
Potentialproblems:
How to remediate theproblem:
The pump
Pump is not operating
Check to see if the system is clogged and flush if
properly.
necessary. If it is still not operating„ then
consult an expert.
The overflow pipe
Erosion is evident at the
Stabilize immediately.
overflow discharge point.
The overflow pipe is clogged.
Unclog or replace if it cannot be unclo red.
The outflow pipe is damaged.
Repair or replace the pipe.
The secondary water
Not operating properly.
Consult an expert.
supply
The cistern
Sediment accumulation of 5%
Remove sediment.
or more of the design volume.
Algae growth is present
Do not allow sunlight to penetrate the cistern.
inside the cistern.
Treat the water to remove/prevent algae.
Mosquitoes in the cistern.
Check screens for damage and repair/replace.
Treat with 'mosquito dunks if necessary.
The screens and filters
Debris and/or sediment has
Search for the source of the debris/sediment
accumulated. Screens and
and remedy the problem if possible.
filters are clogged.
Clean/clear debris/sediment from screen or
filter. Replace if it cannot be cleaned.
Form SW401-Rainwater Harvesting O&M-Rev.I
ECEI V E
APR 10 1013
Page 2 of 3

Permit Number:
(to be provided by DI NO)
Drainage Area Number:
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. 1 agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: P705 HANGAR AND APRON
BMP drainage area number:DA-G (ROOF)
Print name: Neal Paul
Title: Deputy Public Works Director
Address: 1005 Michael Road
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1, UV I Cl U VkWV lV l , a Notary Public for the State of
VL(� , County of do hereby certify that Q
i' " u personally appeared before me this ( U
Y �► r�
day of V`^lJ � ( and acknowledge the due execution of the
forgoing rooftop management maintenance requirements. Witness my hand and official
seal,
KELLEY VANDECOEVERI
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
Form SW401-Raimvater Harvesting O&M-Rev.I
IFCF—IVF
APR 10 2013
Page 3 of 3

Permit Number:
�2 (to be provided b DWQ)
Drainage Area Number: C7
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 i
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 I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splilter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splilter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
APR 10 2013
BY:_ -------
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page I of 3

BMP element:
Potentialproblem:
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 it height of
f applicable).
a pproximately 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 line and a
one-time fertilizera licalion.
Sediment is building up on
Remove the sediment and
the filler strip.
reslahilize 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 -lime
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking, out desirable species.
possible. If pesticide is used, do not
allow it to gel 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.
1 401 Oversight Unit at 919-733-1786.
APR 10 2013
Form SWU401-Level Spreader, Filter Strip, Restore parian Buffer O&M-R , .3 Page 2 of 3
8y:

Permit Number:
(to he provided by DWO
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 nwne:P705 HANGAR AND APRON
BMP drainage area number:DA-G (ROOF)
Print
Title: Deputy Public Works Officer
Address:1005 Michael Road
Phone: [phone]
Note: "rhe legally responsible party should not he a homeowners association unless more than 50%of
the lots have been sold and a resident of the subdivision has been named the president.
1, i> K`V J ` \kAV UVV_� V 'J yUY V a Notary Public for the State of
County of Vv do hereby certify that
personally appeared before me this
day of 4aw and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreade aintenance requirements.
Wimess my hand and official seal,
�KE1,1EYVANDECOEVERIN
y „ ttet!c
bill" Ii
SEAL
My commission expires
WE�F_ivE
APR 10 2013
RV:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

ULMLH USE UNLY
Date Re eive
Fee Paid
Permit Number
a
nt HIV
o>R O D
NC DEO Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
/n accordance with 15A NCAQ 2H.104, Q), the current permit holder shall renew their high densitypermit 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.(q). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SWB 130104
2. Project name: MCAS P-705 Hangar and Apron Expansion
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 fora Major
Modification or Minor Modification Application form available at., https.,//deg.nc.gov/about/divisions/energy-
mineral-land-resources/ene rgy-mineral-land-rules/stormwater-program/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://deo.nc.nov/abouUdivisions/eneray-mineral-land-
resourcestenergy-mineral-land-rules/stormwater-prodraMpdst-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: tLCC
ZIP: 28547-2521
5. Street Address:
City: State: -ZIP: _
6. Phone: [phone] Emait [e-mail]
E���'i
AUG 18 2W
BY:
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018
b 9 ;�'�-� "+LSo r • 4t ,�" °°' ' �' ?rrn 4 t'y..�+,=m � 'yt;� 1 �: aw vi'.' .' ",i_r 1.

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLP
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
f. 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:
® 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.
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 certification(s) 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).
AUG 18 2W i I
l
ftY:
Stormwaler Permit Renewal Application Form Page 2 of 3 May 11, 2018

c
D. PERMITTEE'S CERTIFICATION
I, 5beT A • 1,w✓ w , 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 roper forms to modify or transfer the permit prior to any changes to the
project, SCMs or o nership. I info ation provided on this permit renewal application is, to the best of my
knowledge corre t 1d c mple e.
Signature: Date: Zo LZ
NOTARIZATION:
I, Cr lrlya Notary Public for the State of
woYAm. I1.X'_yv4- County of Nslovlv` , do hereby certify
that h\r4A'W personally appeared before me
this the 2-0 day of L 20_ z and acknowledge the due
execVji kwafI0p,forgoing instrument. Witness my hand and official seal,
,Mj 4wl�*"141�pires
ti-4.otie ev'd.
AUG 18 2022
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

Permit Number F 1-30` o
(to be provided by DWO)
Of W A rFN
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 Ill) and the IBM Agreement (Section IV)
Project name
Contact name
Phone number
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
198,501.00 ft, OK
Impervious area
168,965.00 ft,
%Impervious (la
85.1%%
Design rainfall depth (Ro)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
Whir
Pre -development 1-yr, 24-hr runoff
ft/sec
Post -development 1-yr, 24-hr runoff
ft3lsec
Pre/Post 1-yr, 24-hr peak control
ft3lsec
Storage Volume
Design volume (WOV)
20,249.00 ft'
Adjusted water qualityvolume (WOV,4)
15,186.75 ft' OK
Volume contained in the sedimentation basin and on top of the sand filter
15,202.00 R3
Top of sand filter/grate elevation
20.17 to 21.00 ft amsl
Weir elevation (between chambers)
14.67 ft amsl
Maximum head on the sedimentation basin and sand filter (h,,.)
4.30 R OK
Average head on the sedimentation basin and sand filter (hp)
2.15 R OK
Runoff Coefficient (Rv)
0.82 (unitless)
Type of Sand Fifter
Open sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand fitter elevation
R amsl
Clearance (ds,,,,,)
Closed/pre-cast sand fitter?
Y Y or N
SHWT elevation
17.50 ft amsl
Bottom of the sand fitter elevation
12.00 to 11.17 ft amsl
Clearance (d,, )
-5.50 to -6.33
If this is a closed, underground dosed sand fitter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
5.46 It
structure (d,.,)
�'r'E�\fE
MAY 10 2013
BY: ��� ¢
Form SW401-Sand Filter-Rev.5 2009Sept17 Paris I and IL Project Design Summary, Page 1 of 2

Permit Number_ � /o /
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Fitter
Surface area of sand filter (Air)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media fitter bed (dr)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet discharge/flowrate
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 fitter?
What is the length of the vegetated f her?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 3011 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 chamber/forebay (W, j?
What is the depth of sand over the outlet pipe (dpipe)?
2,158.00 ft' OK. Meets minimum, but may need to be increased to
8.00 ft
1,461.00 g' OK. Meets minimum, but may need to be increased to
14.50 It amsl
13.00 It amsl
1.50 It
3.50 (Nday)
(2) 4 in
0.22 ft3/sec
40.00 hours OK. Submit drainage calculations.
1.67 days
Y YorN OK
Y YorN OK
YorN
N Y or N Show how flow is evenly distributed.
Y YorN OK
YorN
YorN
YorN
13,00 ft OK
1.17 - 2.00 It OK
FCFIVE
MAY 10 2013
BY:_ -------
Form SW401-Sand Filter-Rev.52D09Sept17 Parts I and 11. Project Design Summary, Page 2 of 2

Permit Numner5(VF/3()/0 ¢
(to be providetl by DWQ)
O^F WA•TF`,9
NCDENR
01�
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&MAgreement (Section IV)
1. PROJECT INFORMATION
Project name
MCAS New River Hangar
Contact name
Christopher Carlsten, P.E.
Phone number
843-266-9308
Date
March 13, 2013
Drainage area number
Drainage Area B (DA-B)
II. DESIGN INFORMATION
Site Characteristics
Drainage area (An)
199,411.00 ft' OK
Impervious area
186,009.00 ff2
%Impervious (la
93.3%%
Design rainfall depth (Ro)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
infor
Pre -development 1-yr, 24-hr runoff
it31sec
Post -development 1-yr, 24-hrrunoffft3lsec
Pre/Post 1-yr, 24-hr peak control
ft/sec
Storage Volume
Design volume (WQV)
22,172.00 ft'
Adjusted water quality volume (WQV,i)
16,629.00 ft'
Volume contained in the sedimentation basin and on top of the sand filter
OK
17,192.00 ft3
Top of sand filtedgrate elevation
20A7 to 21.00 ft amsl
Weir elevation (between chambers)
13.07 ft amsl
Maximum head on the sedimentation basin and sand filter (h�Fa„)
4.85 It OK
Average head on the sedimentation basin and sand filter (hq)
2.43 ft OK
Runoff Coefficient (Rv)
0.89 (uni0ess)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand fitter elevation
It amsl
Clearance %,, r)
Closed/pre-cast sand fitter?
Y Y or N
SHWT elevation
19.00 ft amsl
Bottom of the sand fter elevation
9.07 to 9.90 It emsl
Clearance %d )
-9.10 to -9.93
If this is a closed, underground closed sand fitter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
7.06 ft
structure (d,,,)
Fe,FIVE
MAY 10 1013
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Permit Number 560 1 ! -'v T
�..
..
(tobep KWby DINY7)
Sedimentation Basin
Surface area of sedimentation basin (As)
2,158.00 ft'
OK. Meets minimum, but may need to be increased to
Sedimentation basin/chamber depth
9.60 ft
Sand Filter
Surface area of sand filter (Ar)
1,461.00 ft'
OK. Meets minimum, but may need to be increased to
Top of sand media filter bed elevation
12.90 ft amsl
Bottom of sand media filter bed/drain elevation
11.40 It amsl
Depth of the sand media fitter bed (dr)
1.50 it
Coefficient of permeability for the sand filter (k)
3.50 (ftlday)
Outlet diameter
(2) 4 in
Outlet discharge/flowrate
0.24 ft3/sec
Time to drain the sand filter (t)
40.00 hours
OK. Submit drainage calculations.
Time to drain the sand filter (t)
1.67 days
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 fiber?
What is the length of the vegetated fiber?
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 chamber/forebay (W,j?
What is the depth of sand over the outlet pipe (dpipe)?
Y YorN OK
Y YorN OK
YorN
N YorN Show how flow is evenly distributed.
Y YorN OK
YorN
YorN
YorN
13.00 ft OK
1.17-2.00 It OK
F7`' 11= 1] V C
MAY 10 2013
BY:__�
Farm SW401Sand Filter-Rev.5 2009Sept17 Pans I and 11. Project Design Summary; Page 2 of 2

Permit NumberSW, (30/0q—
(to be pro vied by Dwt)
di WAT��7
oOe
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 111) and the 18M Agreement (Section IV)
I. PROJECT INFORMATION I
Project name MCAS New River Hangar
Contact name Christopher Carlsten, P.E.
Phone number 843-266-9308
Date March 13, 2013
Drainage area number Drainage Area C (DA-C)
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
182,655.00 ft2 OK
Impervious area
173,488.00 ftz
%Impervious (IA)
95.0%%
Design rainfall depth (RD)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
in/hr
Pre -development 1-yr, 24-hr runoff
ft3/sec
Post -development 1-yr, 24-hr runoff
ft3/sec
Pre/Post 1-yr, 24-hr peak control
ft"Isec
Storage Volume
Design volume (WQV)
20,659.00 ft'
Adjusted water qualityvolume (WQVA
15,494.25ft'
Volume contained in the sedimentation basin and on top of the sand filter
OK
15,564.00 ft'
Top of sand filter/grate elevation
19.58 to 20.41 It amsl
Weir elevation (between chambers)
13.22 It amsl
Maximum head on the sedimentation basin and sand filter (h�ra,r)
4.40 ft OK
Average head on the sedimentation basin and sand filter (hA)
2.20 It OK
Runoff Coefficient (R1,)
0.90 (unitless)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
It amsl
Bottom of the sand Titter elevation
If amsl
Clearance (ds )
Closed/precast sand fiter?
Y Y or N
SHWT elevation
19.00 It amsl
Bottom of the sand fitter elevation
9.22 to 10.05 ft amsl
Clearance (ds,,,,)
-8.95 to -9.78
If this is a closed, underground closed sand fitter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
6.32 It
structure (ds , )
� +'FP V E
MAY 10 2013
BY:_ -------
Form SW401Sand Fi ter-Rev.5 2009Sept17 Parts I and It. Project Design Summary, Page 1 of 2

R
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basinlchamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media fitter bed elevation
Bottom of sand media fitter bed/drain elevation
Depth of the sand media ffter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand fitter (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 fitter?
What is the length of the vegetated fitter?
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 chamber/forebay (W,J?
What is the depth of sand over the outlet pipe (dpipe)?
Permit NumberJl O /30 /v
(to be provided by DKq
2,158.00 g2 OK. Meets minimum, but may need to be increased to
8.86 ft
1,461.00 ft' OK. Meets minimum, but may need to be increased to
13.05 ft amsl
11.55 ft amsl
1.50 ft
3.50 (ftlday)
(2) 4 in
0.23 ft'/sec
40.00hours OK.Submitdrainagecalculations.
1.67 days
Y YorN OK
Y YorN OK
YorN
ft
N Y or N Show how flow is evenly distributed.
Y YorN OK
YorN
YorN
YorN
13.00 ft OK
1.17-2.00ft OK
ECEIVER
MAY 10 1013
BY:
Form SW401-Sand Filter-Rev.5 2009SepE17 Parts I and II. Project Design Summary, Page 2 of 2

Permit Number', A�/0 T
no be pro ldiad by DWy
of WArFq
N
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 Itt) and the I&MAgreement (Section IV)
Project name
Contact name
Phone number
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
March 13, 2013
Drainage Area D
P.E.
Drainage area (Ag)
189,805.00 ft' OK
Impervious area
181,065.00 ft,
%Impervious (Ix)
95.4%%
Design rainfall depth (Rg)
1.50 in
Peak Flow Calculations
1-yr, 24-hrrunoff depth
in
1-yr, 24-hr intensity
infhr
Pre-devebpment 1-yr, 24-hr runoff
ft3lsec
Post -development 1-yr, 24-hr runoff
ft3lsec
Pre/Post 1-yr, 24-hr peak control
ft3lsec
Storage Volume
Design volume (WOV) 21,556.00 ft3
Adjusted water quality volume (WOVW 16,167.00 ft' OK
Volume contained in the sedimentation basin and on top of the sand filter 16,469.00 ft'
Top of sand filter/grate elevation 18.52 to 19.35 ft amsl
Weir elevation (between chambers) 11.76 ft emsl
Maximum head on the sedimentation basin and sand filter (ht,,re„) 4.65 It OK
Average head on the sedimentation basin and sand filter (hA) 2.33 It OK
Runoff Coefficient (Rv) 0.91 (undless)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
It amsl
Bottom of the sand fitter elevation
It ems]
Clearance (ds,,,)
Closed/pre-cast sand fitter?
Y Y or N
SHWT elevation
17.50 ft amsl
Bottom of the sand fitter elevation
7.76 to 8.59 ft amsl
Clearance (ds�)
-8.91to-9.74
If this is a closed, underground closed sand fitter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
6.72 ft
structure (dsp )
�"171 V E
MAY 10 2013
BY:
Form SW401-Sand Filter-Rev.5 2009Septl7 Parts I and 11. Project Design Summary, Page 1 of 2

1
Permit Number:.N) O I3oIUi
(lobepro 1dedby DIAQ
Seimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bedldrain elevation
Depth of the sand media fitter bed (dr)
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 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 fitter?
What is the length of the vegetated fitter?
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 10011 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)?
2,158.00 ftz OK. Meets minimum, but may need to be increased to
9.26 ft
OK. Meets minimum, but may need to be increased to
amsl
amsl
OK. Submit drainage calculations.
days
Y
YorN
OK
Y
YorN
OK
YorN
ft
N
Y or N
Show how flow is evenly distributed.
Y
YorN
OK
YorN
YorN
YorN
13.00 ft
OK
1.17-2.00ft
OK
Ff-ry UE
MAY 10 2013
BN:�
Form SW401Sand Filler-Rev.5 2oo9Sept17 Parts I and II. Project Design Summary, Page 2 of 2

Permit Numb.":5
(to be provided by DWO)
AwG`A
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 MCAS New River Hangar
Contact name
Phone number
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
Christopher Carlsten, P.E.
843-266-9308
June 5, 2014
Drainage Area E (DA-E Revised)
Drainage area (AD)
143,680.00 ffz OK
Impervious area
134,882.00 it
% Impervious (IA)
93.9% %
Design rainfall depth (RD)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
in/hr
Pre -development 1-yr, 24-hr runoff
ft3/sec
Post -development 1-yr, 24-hr runoff
ft3/sec
Pre/Post 1-yr, 24-hr peak control
to/sec
Storage Volume
O,2'�F Mr,A,r7FA1c
> l VM��-/�r-i
Design volume (WOV) 16,072.00 ft3
Adjusted water quality volume (WOV,i) 12,054.00 fl3 OK
Volume contained in the sedimentation basin and on top of the sand filter 12,702.00 it'
Top of sand filter/grate elevation 16,74 to 17.55 it amsl
Weir elevation (between chambers) 12.17 1t amsl
Maximum head on the sedimentation basin and sand filter (hM,,,Fda) 3.25 it OK
Average head on the sedimentation basin and sand filter (hA) 1.63 it Ensure that the average is half of the max.
Runoff Coefficient (R,r) 0.89 (unitless)
Type of Sand Filter
Open sand filter? N Y or N
SHWT elevation it amsl
Bottom of the sand filter elevation it amsl
Clearance (dSH O
Closed/pre-cast sand filter? Y Y or N
SHWT elevation 15.25 it amsl
Bottom of the sand filter elevation 8.69 to 9.50 it amsl
Clearance (dSHwT) -6.56 to -5.75
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 4.32 it �w
structure (dsp,.e) E C 1E I V E.
JUN062014
BY -
Form SW401-Sand Filter-Rev.5 2009Sept 17 Parts I and 11. Protect Design Summary, Page 1 of 2

Permit
(to be provided by DWO)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet discharge/flowrate
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 flaw
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 chamber/forebay (WsJ?
What is the depth of sand over the outlet pipe (dpipe)?
2,608.00 it' OK. Meets minimum, but may need to be*reased to
7.05 it
1,434.00 ryz OK. Meets minimum, but may need to be increased to
12.00 it amsl
10.50 it amsl
1.50 it
3.50 (ft/day)
(2) 4 in
0.18 ft3/sec
40.00 hours OK. Submit drainage calculations.
1.67 days
Y
Y or N
OK
Y
Y or N
OK
YorN
it
YorN
Y
YorN
OK
YorN
YorN
YorN
16.00 it
OK
1.17 to 1.96 it
OK
Fours SW401-Sand Filter-Rev.5 2009Sept17
Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
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.
Initials Page/ Plan
Sheet No.
66 LL i %Kd 1. Plans IV - 50' or larger) of the entire site with labeled drainage area boundaries
L •0j6 - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
66/J S chamber,
C�/Jj - Maintenance access,
Flow splitting device,
CG /06 - Proposed drainage easement and public right of way (ROW),
(f6 /p7 - Design at ultimate build -out,
64 /D u - Off -site drainage (if applicable), and
Boundaries of drainage easement.
CAC LS/V 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
Flow splitting device,
Vegetative filter strip dimensions and slope (if SA waters),
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable).
���.� 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
jresults of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
& C 5. Supporting calculations (including drainage calculations)
C _ 7 6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
�GEI V
1 JUN 0 6 201E0
q
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17
Part III, Page 1 of 1

Permit
(to be provided by DWO)
o20, W ATPgOG
y �
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)
Project name
Contact name
Phone number
Date
Drainage area number
DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
Impervious (IA)
Design rainfall depth (Re)
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WOV)
Adjusted water quality volume (WOVAd,)
Volume contained in the sedimentation basin and on top of the sand filler
Top of sand filter/grate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hmaFhe,)
Average head on the sedimentation basin and sand filler IN)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dSHWr)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (ds,,,T)
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..)
Christopher Carlsten, P.E.
843-266-9308
June 5, 2014
Drainage Area F (DA-F)
49,119.00 it' OK
45,991.00 fe
93.6% %
1.50 in
in/hr
ft'/sec
5,481.00 h3
4,110.75 ft3
4,191.00 ft'
OK
16.35 to 16.04 it amsl
11.07 - it amsl
3.25 it
OK
1.63 it
Ensure that the average is half of the max.
0.89 (unitless)
YorN
it amsl
it amsl
Y YorN
15.25 it amsl
8.09 to 8.40 it amsl
-7,16 to -6.85
4.72 it
f%F-CEIV In
JUN 0 6 2014
Fonn SW401-Sand Filter-Rev.52009Sept17 Parts I and If. Project Design Summary, Page 1 of 2

Permit
(to be provided by DWO)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet discharge/flowrate
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 chamber/forebay (Wsd)?
What is the depth of sand over the outlet pipe (dpipe)?
806.00 fe
6.95 it
525.00 ft2
10.90 ft amsl
9.40 ft amsl
1.50 ft
3.50 (fYday)
(2) 4 in
0.18 rya/sec
40.00 hours
1.67 days
Y
Y
ft
Y
16.00 ft
1.17 to 1,48 ft
OK. Meets minimum, but may need to be irfcreased to
OK. Meets minimum, but may need to be increased to
OK. Submit drainage calculations.
YorN OK
YorN OK
YorN
YorN
YorN OK
YorN
YorN
YorN
OK
OK
Form SW401-Sand Filter-Rev.52009SeptW
Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
:—.
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.
Initials Pagel Plan
Sheet No.
L c"
CAC
cu
C •006
L6iv S
C6/Jf
66 /06
C6 /07
cG iv
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
Flow splitting device,
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Boundaries of drainage easement.
LS/V 2. Plan details (1" = 30' or larger) for the sand filter showing:
t/py - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
(A 5'�O 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SHWT elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable).
prfri 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
f results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
CrL 5. Supporting calculations (including drainage calculations)
Ct�<A 76. Signed and notarized operation and maintenance (0&M) agreement
A�— 7. A copy of the deed restrictions (if required).
JUIN U G 2�1�
13y:_
Form SW401-Sand Filter-Rev.5 2009Sept17 - Part III, Page 1 of 1

Permit No.
slv 8�3oi1�
(to be provided byOWQ)
sl pp WArFF
TA
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
RAINWATER HARVESTING SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part IIQ must be printed, filled out and submitted aking with all of the required information.
rrolect name
Contact person
Phone number
Date
Drainage area number
Christopher Cadsten P.E.
843-266-9308
13 Mar-13
Drainage Area G (Roof)
II. DESIGN INFORMATION
Site Characteristics
Captured Horizontal Surface Area of Roof 60,851 it,
Are you in Coastal County SA waters or ORW Areas? No HII out Non -SA Waters/Other Section
Storage Volume: Non -SA Waters I Other
Design rainfall Re$ W 1.5 in
Rain Harvesting Volume Provided (Must include a factor of safety at 9,128 It
�/ t
least 12( design rainfall) r
4, Rain Harvesting Volume Pre+ided Re � �• 68286.57 g:
Storage Volume: SA Waters & Saltwater ORW Areas
Runoff Volume generated from 1.5'
1-yr, 24hr rainfall depth at your site
Pre -Development 1-yr, 24hr Runoff
Post -Development 1-yr, 24-hr Runoff .
1-yr, 24hr Runoff Volume Post -Pre
Use 1.5' or Pre/Post?
Volume of Rainwater Harvesting System Provided
Rain Harvesting Volume Provided at Site
Factor of Safety
Rain Harvesting Volume Provided
fl'
in
fi°
0,00 It'
OK
OK
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
Do not fill out this section
13,368.00 fi° OK
1.75 OK
100006.01 gal
rcovEh
APR 10 2013
IN
Form SW401-Rainwater Harvesting-Rw.3 Pans I. 811. Design Summary, Page 1 of 3

• %Runfoff
% Runoff Used On -Site
Primary Method Used On -Site
% Runoff Treated On -Site
Primary Method of Treatment
% Runoff Infiltrated On -Site
Total Runoff Accounted For
Water Balance Calculations Attached?
Cistern Overflow, Gutter, & Gutter Downspout Sizing
Closest City
Captured Roof Area
Overflow Pipe Diameter Needed (in Dec. Inches)
Maximum Captured Area far above Overflow Pipe
Guttering
Number of Gutters Total
Do you have a plan details showing numbered gutters?
Do you have a detailed table showing slopes of all gutters?
Do you have a detailed table stowing diameters of all gutters?
Do you have a detailed table showing downspout diameterof all
gutters?
Do you have a detailed table slowing maximum captured area for
all gutters?
Additional Design Elements
Have you modeled this system using a water harvesting model?
Days to Draw Down Rainwater Harvester
Overflow discharged to:
Does the overflow discharge directly to impervious surfaces?
What is the overflow velocity for the 10-year storm?
Is the overflow velocity non -erosive
Is a First Flush Diverter Used?
If First Flush Diveder used, where is bypassed water discharged to?
Actual City
Closest City
Average Annual Historic Rainfall at your Site
Percent of Rainfall that will Overflow Cistern
Additional Design Elements
Which Model?
Does this cistern have a dedicated year-round use?
Screen Song at Entrance to Rainwater Harvester
Do you have a secondary water supply to the rainwater harvester?
Plans for the footing included in submittal?
Is the cistern buried?
Pump provided? What is the pressure?
What are the designated uses of the pump?
Are Pump Sorg Calculations Attached?
Is Cistern Metal?
If Metal Cistern- Is Waterproof Bladder Provided?
It the only use is irrigation - are plans provided?
Labeled as non -potable water?
Are Local & State punbig codes followed?
Does this roof area deduct BUA from calculations of another BMP?
Permit
100 %
Aircraft Washing
0 %
NIA
0 %
100 %
Yes
Wilmington
60851 ft2
18 in
6D851 g1
OK
Ca73
(to be provided by D WO)
Please attach a table showing Gutter numbers, slopes,
diameters, downspout sizing and areas going to each
NIA
gutters
gutter
No
Please include plan details showing numbered gutters
No
gutters
No
gutters
Yes
Please include a detailed table showing downspout
diameter of all gutters
Yes
Please Include a detailed table showing maximum
captured area for all gutters
Yes
OK
35
days
Properly Designed BMP
OK
No
OK
5.8
Ns
Yes
velocity
No
Camp Lquene
Wilmington
51
in
32
%
NCSU Rainwater Harvestor
Yes
OK
mm
OK
Only a minimal amount of volume can be put in the
Yes
cistern
Design for footing must be provided if the load of the
cistern at full capacity Is greater than the soils will
No
support
If cistern is buried, calculations must be provided to
Yes
show cistern will not float when empty
50
psi
Washing
Yes
No
OK ECEItlI/E
NIA
OK
NIA
OK
APR 10 2013
Yes
OK
Yes
No
BY:
Farm SW401-Rainwater Harvesting-Rev.3 Parts I. & II. Design Summary, Page 2 of 3

Perrnd
(to be ptovkAed by DWQ)
If so, what BMP?
ECEOVE
APR 10 2013
BV:
Fonn SW401-Rainwater Harvesting-Rev.3 Parts 1. & II. Design Summary, Page 3 of 3

Permit
(to be provided by D WQ)
III> REQUIRED ITEMS CHECKLIST, , .�„ i,.::, , c m, r ! ..:: d.. , .'
v
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.
Pagel Plan
Initials Sheet No.
CEC C�zS-
CvUt;
CG /o/
C�c, C6o
oby
CC- C6/}
/( ISC A
Y /V_
A)V
C/�c W c
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),
- Rain Harvester dimensions,
- Pretreatment system,
- Any first flush bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
2. Partial plan (1" = 30' or larger) and details of rain harvester showing:
- Maintenance access
- Volume
- Area overflow is directed to and appropriate details of overflow area including vegetation, seeding plan
and side slopes
- Screen sizing
- Waterproof bladder if applicable
- Footings
- Pump design and sizing
- Guttering with sizing and slopes, overflows, and
3. Section view of the roof and rain harvester (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
Inlet and outlet structures.
4. Rain harvesters shall not be used for sediment and erosion control during construction
5. A table of elevations, areas, gutter slopes, gutter and overflow dimensions, incremental volumes &
accumulated volumes for overall site to verify volume provided.
6.
A construction sequence that shows how the rain harvester will be implemented on site.
T The supporting calculations.
&' A copy of the signed and notarized operation and maintenance (0&M) agreement.
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.
11 A copy of the printout from the water harvesting model used.
12 A copy of average annual rainfall at your site.
ECEIVE
APR 10 2013
ev:_— ---
Form SW401-Rainwater Harvesting-Rev.3 Part III. Required Items Checklist, Page 1 of 1

sw 8-f
►fin
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.
Project name
Contact name
Phone number
Date
Drainage area number
MCAS New River Hangar
Christopher E. Cadsten, P.E.
843-266-9308
March 13, 2013
Drainage Area G (Roof)
I3DESIG N I I N FORMATION
The purpose of the LSVFS
Buffer Rule: Diffuse Flow
Stormwater enters LSVFS from
A BMP
Type of VFS
Engineered filter strip (graded 8 sodded, slope < 8%)
Explanation of any 'Other' responses above
If Stormwater Enters the LS-VFS from the Drainage Area
Drainage area
ff'
Do not complete this section of the form.
Impervious surface area
ff2
Do not complete this section of theform.
Percent impervious
%
Do not complete this section of the form.
Rational C coeffident
Do not complete this section of the form.
Peak flow from the 1 Whir storm
cis
Do not complete this section of the form.
Time of concentration
min
Do not complete this section of the form.
Rainfall intensity, l 0-yr storm -
iNhr
Do not complete this section of the form
Peak flow from the 10-yr storm
ds
Do not complete this section of the form.
Design storm
Pick one.
Maximum amount of flow directed to the LSVFS
CIS
Do not cornplele this section of the form
Is a flow bypass system going to be used?
(Y or N)
Do rot complete this section of the form.
Explanation of any'Other• responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP doing the 10-year stone
Maximum capacity of a 1IX0-foct long LSVFS
Peak flow drected to the LSVFS
Is a flow bypass system going to be used?
E>rplanalion of any 'Other responses above
Other: 6ylained below
7
CIS
11,6
CIS
10
cis
10
CIS
Y
(Y or N)
Rainwater harvesler
FCC=1 10 E
APR 10 2013
BY:_ ------
Form SW401 - LS-VFS - 29, une2012 - Rev, 10 page 1 of 3

�i
LS-VFS Design
Forebay surface area
Depth of forebay at stomtwater entry point
Depth of forebay at stormwater exit point
Feet of level lip needed per ds
Computed minimum length of the level lip needed
Length of level lip provided
Width of VFS
Elevation at dmvnslope base of level lip
Elevation at the and 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 splicing device?
Dimensions of the channel (see diagram below):
M
B
W
y (flow depth for 1 0-year storm)
freeboard (during the 10-year storm)
Peak velocity in the channel during the 10yr 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
WA
sq ff No forebay is required.
in
in
10
Alcfs
100
h
100
It
00
It
1&.00
-fmsl
18,00
first
0.00
%
N
(Y or N) OK
Y
(Y or N)
Y (Y or N)
Y (Y or N) Please provide plan details of flow sorter & supporting cabs.
300
c
000
It
12.00
fl
040
it
160
c
200
clsec
Grass
N (YaN)
Y (Y or N)
W
1ECEI V E
APR 10 2013
By:-------
Form SW401 - LS-VFS - 29June2012 - Rev. 10 page 2 of 3

I11AEWRED ITEMS CHECKLISTri f,, i .
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 sharing:
- Design at ultimate buildoul,
- 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 (ROM, 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 buildoul.
3. Section view of the level spreader (1' = 20' a 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 shays how the level spreader will be protected from
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.
8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
nitials Page or plan sheet number and any notes:
C�c�s Cao6, CGiv/
CFc
& OS lS
ac..I C 5/`/- J A0pv C
C � APoo (j
1ECEIVE
APR 10 2013
BY -
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 3 of 3

Permit No. SW8 130104
P-705 Hangar and Apron Expansion
Stormwater Permit No. SW8 130104
On§low Countv
Designer's Certification
/, Page 1 of 2
I
I, tAA^TI<� Aq e-`e , as a duly registered in the
State of North Carolina, having been authorized to observe eriodicall eekly/full time)
the construction of the project,
P-'IoS �iaNG<t� AN'� AC'Ra�l xPArJs�or,S i�^�� ���TeR A�
(Project)
for McR, CArmp lz-1El1N£ (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:
ilk /1 Signature SEAL � �./ �
Registration Number
Date id'm ICE
01, i
SEAL_
_� ; 038615
oy� �•T.'ea�.
ECEIVE
OCT 13 2015
Page 8 of 9

Permit No. SW8 130104
Certification Requirements. (SF - A) 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 impervious area.
3. All the impervious 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. Elevations of the BMP are per the approved plan.
✓ 6. BMP is located per the approved plans.
V 7. A trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
✓ 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.
41A 15. The required number and type of plantings are provided.
V 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

Permit No. SW8 130104
P-705 Hangar and Apron Expansion Page 1 of 2
Stormwater Permit No. SW8 130104
OnSlow Countv
Designer's Certification
1, mAiT e.: , as a duly registered P¢ yM3. rcwv4ei �in the
State of North Carolina, having been authorized to observe eno ica weekly/full time)
the construction of the project,
(Project)
for MGR� CAMP 13E-1ejuE� (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
g.1— SEAL
"
Registration Number o38cots N CA ©',
Date to,sta `tq o Ess o ff,
SEAL
038615
Page 8 of 9

Permit No. SW8 130104
Certification Requirements. (SF- I�)
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 impervious area.
✓ 3. All the impervious 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. Elevations of the BMP are per the approved plan.
✓ 6. BMP is located per the approved plans.
✓ 7. A trash rack is provided on the outlet/bypass structure.
lA 8. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
✓ 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.
N A 15. The required number and type of plantings are provided.
✓ 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

Permit No. SW8 130104
P-705 Hangar and Apron Expansion Page 1 of 2
Stormwater Permit No. SW8 130104
Onslow Countv
Designer's Certification
I, M aTiAc-63 HAS as a duly registered in the
State of North Carolina, having been authorized to observe eno Ica weekly/full time)
the construction of the project,
—'lcyi mNr Ay— Awrn Aego J �XPgotSlo � /SANS F«TE�Vt_ G
(Project)
for Meta CRNQ M-*-uNF (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 SEAL _�/L1
Registration Number p3Sto1S „.,,,
%N CARP
Date 1010- br p� o�ess/o
SEAT_ `-
° 038615
�''�i+•••aGIh10E'•• 'v c
Page 8 of 9

Permit No. SW8 130104
Certification Requirements. (SF-G) 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 impervious area.
✓ 3. All the impervious 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. Elevations of the BMP are per the approved plan.
✓ 6. BMP is located per the approved plans.
✓ 7. A trash rack is provided on the outlet/bypass structure.
N IA 8. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
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.
Nlk 15. The required number and type of plantings are provided.
✓ 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

Permit No. SW8 130104
P-705 Hangar and Apron Expansion Page 1 of 2
Stormwater Permit No. SW8 130104
Onslow County
Designer's Certification
I, KPP� k &et , as a duly registered pge poP r-a N in the
State of North Carolina, having been authorized to observe ( nodica ly/weekly/full time)
the construction of the project,
for W-S CAMP trne, ve- (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:
SEAL
Signature �%��
Registration Number o38tvts
... I IIIIIIII°III"°1
Date to1211C7=-
C'Q�
SEAL rc
038C15
""gqul �nY �
•
111111111111111\1\\\\\\\
Page 8 of 9

Permit No. SW8 130104
Certification Requirements, (SF-flD 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 impervious area.
✓ 3. All the impervious 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.
—V—_5. Elevations of the BMP are per the approved plan.
---v/_6. BMP is located per the approved plans.
✓ 7. A trash rack is provided on the outlet/bypass structure.
KL 8. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
✓ 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.
V 12. Required drawdown devices are correctly sized and located per the approved
plans.
113. 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.
t 14 15, The required number and type of plantings are provided.
_-,/ 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

Permit No. SW8 130104
P-705 Hangar and Apron Expansion Page 1 of 2
Stormwater Permit No. SW8 130104
Onslow Countv
Designer's Certification
I, MArrl %4 M%-v-e , as a duly registered in the
State of North Carolina, having been authorized to observe eno rca weekly/full time)
the construction of the project,
for VACS c MP (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:
SEAL
Signature 1
Registration Number o3p,ca\Gn, 0' ,A CAr�O,,,
Date \ola t2 br�2 ' pe
SEAL
038615
Page 8 of 9

......
Permit No. SW8 130104
Certification Requirements. lSF-�� Page 2 of 2
✓ I. 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 impervious area.
✓ 3. All the impervious 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. Elevations of the BMP are per the approved plan.
✓ 6. BMP is located per the approved plans.
✓ 7. A trash rack is provided on the outlet/bypass structure.
N 8. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
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.
W-15. The required number and type of plantings are provided.
v/ 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

Permit No. SW8 130104
P-705 Hangar and Apron Expansion Page 1 of 2
Stormwater Permit No. SW8 130104
Onslow County
Designer's Certification
1, WmNia , as a duly registered the
State of North Carolina, having been authorized to observe eno ica weekly/full time)
the construction of the project,
-F-'lor7 4AKGAN- fNr) 699-,oNI1ec9AnIStata (54ur>T-�Lt�12 C-1
(Project)
for MCy, CAMP \,e)eu lg (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:
SEAL
Signature
Registration Number o38<oi5
Date_ mhc�
to
° 03861
Page 8 of 9

^ Permit No. SW8 130104
Certification Requirements, (�_ �> 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 impervious area.
3. All the impervious 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. Elevations of the BMP are per the approved plan.
BMP is located per the approved plans.
✓ 7. A trash rack is provided on the outlet/bypass structure.
WK S. All slopes are grassed with permanent vegetation. (Does not apply to
underground sand filters)
✓ 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.
Nl 5 15. The required number and type of plantings are provided.
_ // 16. The required dimensions of the system are provided, per the approved plan.
cc: NCDENR-DEMLR Regional Office
Page 9 of 9

ENGINEERING
151 Poole Road, Suite 100
Belville, NC 28451
TEL [phone]
FAX [phone]
w .capefearengineering.com
To:
JNICDENR
Water Quality Section - Stormwater
127 Cardinal Dr. Ext
Wilmington, NC 28405
Attn:
Christine Hall
Transmittal
Date: October 12, 2015
File: 558-179 "36"
P-705 Hangar and Apron
Expansion
(SW8 130104)
Certifications for Sand Filters A-F
❑ As Requested ❑ For Your Files ❑ For Distribution ® For your Review / Action / Approval
❑ Sent via Mail ❑ Sent via Courier
Quantity
Drawing No.
Description
1
Copy
Certification for Sand Filter A
1
Copy
Certification for Sand Filter B
1
Copy
Certification for Sand Filter C
1
Copy
Certification for Sand Filter D
1
Copy
Certification for Sand Filter E
1
Copy
Certification for Sand Filter F
11 Orr I
�UfS
REMARKS Please let me know if you have any questions or need any additional information. Thanks.
CC:
File 558-179 "36"
Thomas Bradshaw, MCBCL Public Works
Cameron McClay, Mortenson
Cape Fear Engineering, Inc.
Signed:
Matthew Haley, IPE
Received
P.1558155&179_MORTENSON1AdminWSBUILTBCERTS\STORMQ015.10.12Trans NCDENR SmrmwaWr.dw