SW8090108_CURRENT PERMIT_20210604

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 QC101OSs
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
202� OkD 0Li
YYYYMMDD

n 'l'
ROY COOPER
Governor
DIONNE DELLI-GATTI
BRUW WRENN
Director
June 4, 2021
NORTH CAROLINA
Enr6onmental Quality
Marine Corps Base Camp Lejeune
Attn: Neal Paul
1005 Michael Road
Camp Lejeune, NC 28547
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 090108
MCAS Aircraft Apron Expansion
Onslow County
Dear Mr. Paul
Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality
(DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR). All previous references to DWQ will
remain in older stormwater permits issued prior to August 1, 2013 until they are modified. Please note that this permit
will now reference DEMLR as the Division responsible for issuance of the permit.
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on May 17, 2021. The Division is hereby notifying you that permit SW8 090108 has been renewed
on June 4, 2021, and shall be effective until December 30, 2029. For your records, please find enclosed a renewed,
updated, and re -issued permit and a copy of the renewal application. Please keep this permit on file at all times. Please
note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely restates some of
the previous terms to provide you with a better understanding of your obligations under the permit.
The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the
terms and conditions of this state stormwater permit. The plans originally approved on April 20, 2009, will remain in
full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000.
This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the
conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed
restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit Failure to establish
an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions,
to transfer the permit, or to renew the permit, will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (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, need additional copies of the permit or approved plans, please contact Ashley Smith in the
Wilmington Regional Office, at [phone] or [e-mail].
Sincerely,
C;Q %Q
.S Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
�rnrH ®r& �J� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Wilmington Regional Ofil 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28405
910.796.7215

State Stormwater Permit No. SW8 090108
Page 2 of 2
Enclosures:
DES/arcs:
CC'
Attachment C — Permitting History
Renewal Application Documents
%Stormwater\Permits & Projects\2009\090108 HD\2021 06 permit 090108
NCDEQ-DEMLR Wilmington Regional Office
®MnAfft�� North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Wilmington Regional Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 28405
�.� /•� 910.796.7215

State Stormwater Management Systems
Permit No. SW8 090108
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
USMCB Camp Lejeune
P-615, New River MCAS Aircraft Apron Expansion, Phase 1
Taxiways at Curtis Road at New River MCA S-Camp Lejeune, Jacksonville, Onslow County
FOR THE
Construction, operation and maintenance of three (3) sand filter systems in compliance with the
provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter collectively and separately
referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of
Energy, Mineral and Land Resources (the "Division" or "DEMLR") and considered an enforceable part
of this permit.
This permit shall be effective from the date of issuance until December 30, 2029, and shall be subject
to the following specified conditions and limitations:
1. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.8 on page 3 of this permit. The stormwater control has been designed to
handle the runoff from 572,398 square feet of impervious area.
3. This basin must be operated with a 50 foot vegetated filter, designed to pass the peak flow
from the 10 year storm in a diffuse and non -erosive manner to the maximum extent practical.
4. The tract will be limited to the amount of built -upon area indicated in Section 1.8 on page 2 of
this permit, and as shown on the approved plans. There is no future built -upon area allocated
with this permit.
5. 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.
6. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
Page 1 of 5

State Stormwater Management Systems
Permit No. SW8 090108
The project shall provide a 50 foot wide vegetated buffer adjacent impounded structures,
streams. rivers, and tidal waters.
8. The following design criteria have been permitted for the sand filter systems and must be
provided and maintained at design condition:
Design Criteria
Sand
Filter #1
B-1
Sand
Filter #2
(B-2)
Sand Filter
#3
C-1 & 2
a. Drainage Area, acres
2.31
4.1
3.53
Onsite, ft2:
100.624
178,160
307,553
Offsite, ftZ:
0
0
0
b. Total Impervious Surfaces, ftZ:
100,624
164,221
307,553
c. Design Storm, in.
1.5
1.5
1.5
d. Media Depth, ft:
1.5
1.5
1.5
e. Bottom Elev., FMSL:
13.8
13
9.3
f. Sediment Surface Area (As), ftZ :
840
1397
1475
g. Filter Surface Area (Af),
1008
1674
1635
h. Weir Elevation, fmsl:
17.9
17.5
13
i. Maximum Head, feet:
3.1
3.5
2.85
j. Total Permitted Storage Volume, ft3:
9200
16,000
13,695
k. Orifice, inches:
4
4
4
I. Draw Down Time, hrs:
40
40
40
m. Receiving Stream / River Basin:
Southwest Creek / White Oak
19-17-(6.5)
"C,HQW,NSW'
n. Stream Index:
o. Classification:
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance necessary to assure
the permitted stormwater system functions 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 re -vegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of sediment chamber, infiltration media, weirs, catch
basins, piping and vegetated filter.
g. A clear access path to the sand filter structures and vegetated filters must be available
at all times.
4. 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.
5. 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.
Page 2 of 5

State Stormwater Management Systems
Permit No. SW8 090108
6. Records of maintenance activities must be kept for each permitted BMP. The reports will
indicate the date, activity, name of person performing the work and what actions were taken.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to
operation of this permitted facility, a certification must be received from an appropriate
designer for the system installed certifying that the permitted facility has been installed in
accordance with this permit, the approved plans and specifications, and other supporting
documentation. Any deviations from the approved plans and specifications must be noted on
the Certification. A modification may be required for those deviations.
8. Access to the stormwater facilities shall be maintained via appropriate easements at all times.
9. 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.
10. No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications. Prior to the construction of any modification to the approved plans,
the permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below. For changes to
the project or SCM that impact the certifications, a new or updated certification(s), as
applicable, will be required and a copy must be submitted to the appropriate DEQ regional
office upon completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size including
the SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
C. Further development, subdivision, acquisition, lease or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications.
d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in
the approved plans and specifications.
g. Other modifications as determined by the Director.
11. Prior to transfer of the permit, a file review and site inspection will be conducted by Division
personnel to ensure the permit conditions have been met and that the project and the on -site
stormwater system complies with the permit conditions. Any items not in compliance must be
repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities
performed to date may be requested.
III. GENERAL CONDITIONS
Any individual or entity found to be in noncompliance with the provisions of a stormwater
management permit or the requirements of the stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21.
The issuance of this permit does not preclude the permittee from complying with and obtaining
any other permits or approvals that are required for this development to take place, as
required by any statutes, rules, regulations, or ordinances, which may be imposed by any
other Local, State or Federal government agency having jurisdiction. Any activities undertaken
at this site that cause a water quality violation or undertaken prior to receipt of the necessary
permits or approvals to do so are considered violations of NCGS 143-215.1, and subject to
enforcement procedures pursuant to NCGS 143-215.6.
Page 3 of 5

State Stormwater Management Systems
Permit No. SW8 090108
3. 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.
4. Permit Transfer: This permit is not transferable to any person or entity except after notice to
and approval by the Director. The permittee shall submit a completed and signed "Permit
Transfer Application Form" (available on the Division website) accompanied by the required
fee and supporting documentation as listed on the form, to the Division at least 60 days prior
to any one or more of the following events:
a. The sale or conveyance of the project area in whole or in part, except in the case of an
individual lot sale that is made subject to the recorded deed restrictions and protective
covenants;
b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08;
C. Bankruptcy;
d. Foreclosure, subject to the requirements of Session Law 2013-121;
5. Current Permittee Name or Address Changes: The permittee shall submit a completed
"Permit Information Update Application Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project;
C. A mailing address change of the permittee;
6. The permittee is responsible for compliance with all terms and conditions of this permit until
the Division approves the transfer request. Neither the sale of the project, in whole or in part,
nor the conveyance of common area to a third party constitutes an approved transfer of the
permit.
7. The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project.
8. The permit issued shall continue in force and effect until the permittee files a request with the
Division for a permit modification, transfer, renewal, or rescission, however, these actions do
not stay any permit conditions.
9. Approved plans, application documents, supplements, calculations, operation and
maintenance agreement, and specifications for this project are incorporated by reference and
are enforceable parts of the permit. A copy of this permit, application, supplements, operation
and maintenance agreement, and approved plans and specifications shall be maintained on
file by the permittee.
10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater
system must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
11. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the
laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al.
12. A permit renewal request must be submitted at least 180 days prior to the expiration date of
this permit. The renewal request must include the appropriate application, documentation and
the processing fee as outlined in Title 15A NCAC 02H.1045(3).
Page 4 of 5

State Stormwater Management Systems
Permit No. SW8 090108
Permit renewed, updated and reissued this the 4th day of June 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
CR:4 90
�ianDirector
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5

Attachment C - Permitting History
P615 New River Aircraft Apron Expansion Phase 1
Permit No. SW8 090108
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
4/20/2009
Original
Approval
1.0
6/4/2021
Renewal
2.0

"rill
--- C: �'' V Permit Number��0�
APR I h 2009 (to be provided bjj, DWQ)
Drainage Area Number: _pj-f_l_��� �� � Z,
Filter St�ip;_Res�tored_Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as '12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3

APR 1 g 2009
BY:
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 a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3

APR � � Zo�9 Permit Number
(m be provided by DWQ)
BY:_____ _
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.
Prgject name: P-615, New River Aircraft Apron Expansion
BMP drainage area number:B-1, B-2, and C 1 &2
Print
Title:Deputy Public Works Director
Address:Blde. 1005 Michael Rd., MCB Camp Lejeune, NC 28547
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of &✓/0 , do hereby certify that
personally appeared before me this A
day of cl)4 , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
AUCE A EOW*TyE
KWGIy Pubtle
OnNow County
State of MOM CaroUna
SEAL
My commission expires 6V o2O/v
Form SWU401-Level Spreader. Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

pjA CowwItttou ExbttOt OCl 53' 1010
E1010 04 NQUi) Cot011U0
OU2100 ConutA
WtCE v BONNEJUE

APR I � 2009
Permit
(lo he prorided by DWQ)
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.
Once a year, sand media will be skimmed.
The sand filter media will be replaced whenever it fai!s to function properly after
vacuuming.
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 theproblem:
The entire BMP
"Crash/debris is present.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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.
Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3

i
APR Y n 2009
EY:-- --
BMP element:
Potentialproblem:
How I will remediate theproblem:
The filter bed and
Water is ponding on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged.
Repair or replace the pipe.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form S W401-Sand Filter O&M-Rev.3 Page 2 of 3

APR 1p4 2009C/
Permit Number:LL�-4�:�li-a—
(to be provided by DIVQ)
acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P-615, New River Aircraft Apron Expansion
BMP drainage area numbe•:I - Area 13-1
Print name:Carl Baker
Title:Deputy Public Works Officer
Address:Bldl,. 1005 Michael Rd., MCB Camp Lcicune, NC 28547
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1, M I L — 10�lC a Notary Public for the State of
County of (1t�SUC�e1 do hereby certify that
personally appeared before me thisb
day of �p� p u R(zLj, and acknowledge the due execution of the
forgoing sand titter maintenance requirements. Witness my hand and official seal,
it
JCHL
My commission expires [ 61 Z66 P
Form SW401-Sand Filter O&M-Rev.3 Page 3 of

APR i �. 1U09
`I
Permit Number.
N'' I (to he provided by bWQ)
------ Drainage Area Number: 0-7,
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.
- Once a year, sand media will be skimmed.
- 'I he sand filicr media will be replaced whenever it fails to function properly after
vacuuming.
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 theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed,
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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.
Fonn SW40 I -Sand FilterO&M-Rev.3 Page I of

FA 1 n. 2u„
BMP element:
Potentialproblem:
How I will remediate theproblem:
The filter bed and
Water is pending on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged,
repair or replace the pipe.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
ou tlet.
733-1786.
Form S W40I-Sand Filter O&M-Rev.3
Page 2 of 3

FAPRApermitNumber.L.oK1 2(jQ!] (to be provided by DWQ)
1 acknowledge and agree by my signature below that.l 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:P-615, New River Aircraft Apron Expansion
BMP drainage area number:2 - Area B-2
Print namaCarl Baker
Titic:Dcputy Public Works "ficcr
Address:Blde. 1005 Michael Rd., MCB Camp Lejeunc, NC 28547
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1, K 10 HP ( LC- 2L66'--/e _ a Notary Public for the State of
XjA0.r4J Paznr „r)tg County of &L}j[nu -1 do hereby certify that
(2-A,2t, personally appeared before me this
day ofilyt9 ,and acknowledge the due execution of the
forgoing sand filter maintenance requirements. Witness my hand and official seal,
E C
SEAL
My commission expires b
Form SW401-Sand Filter O&M-Rev.3
Vqkx ev pv"
Page 3 of

APR 1 2UC9
Permit Number.
to he provided by DWQ)
5Y:___--- - Drainage Area Number: 0-1
Sand 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.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to fanction properly after
vacuuming.
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 theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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.
Form SW401-Sand Filter O&M-Rev.3 Page I of 3

APR 7 � 2009
71"Y:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The filter bed and
Water is ponding on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and Flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged.
I Re air or replace the pipe.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW401-Sand Filter O&M-Rev.3 Page 2 of 3

A°R Y 2009 c,
JT3Y: Permit Number: tt �©1 [1IR
—�-_ (to be provided by DWQ)
1 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:P-615, New River Aircraft Apron Expansion
BMP drainage area
Print
Titic:Deputy Public Works Officer
Address:Blda. 1005 Michael Rd., MCB Camp Lcicune, NC 28547
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of do hereby certify that
personally appeared before me this /
day of O�� ii. „job , and acknowledge the due execution of the
forgoing sand filter maintenance requirements. Witness my hand and official seal,
AWE A BONNETM
Notary Public
Onslow County
state of Norm Carolina
My Commission Exclres Oct 23. all
SEAL
My commission expires CI-t
Form SW401-Sand Filter O&M-Rev.3
Page 3 of

Vp Coww1anou pboov Oct 3)' 3010
arms of Noun COa11uo
ouopw CORUO
tlftCf V @OHM uf

' APR 1 4 2009
BY:
Sand Filter Operation and
Permit Number: ��nolz' {
(to be provided by D 6VQ)
Drainage Area Number: C'Z
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.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after
vacuuming.
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 theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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.
Form SW401-Sand Filter O&M-Rev.3 Page I of 3

rr
APR 1 � 2009
BMP element:
Potentialproblem:
How I will remediate theproblem:
The filter bed and
Water is pending on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged.
I Repair or replace the pipe.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW40I-Sand FilterO&M-Rev.3
Page 2 of 3

C� ,
Permit Number: `� O��O' in
(to be provided by DWQ)
acknowledge and agree by my signature below that 1 am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P-615, New River Aircraft Apron Expansion
BMP drainage area number:
Print
Titic:Dcputy Public Works Officer
Address:Blde. 1005 Michael Rd., MCB Camp Lejeune, NC 28547
Date: 7 �9
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, I I C -e- Qnrl e °tom , a Notary Public for the State of
, County of Qn 5 [ /0 tj , do hereby certify that p
F personally appeared before me this
day of 22jQi9J, and acknowledge the due execution of the
forgoing sand filter maintenance requirements. Witness my hand and official seal,
AUCE A OONNETTE
Notary Public
Oroloir County
Etas* of NwM CarWlno
My Commission Expires Oct 2�, 2010
SEAL
My commission expires '2_�
Form SW401-Sand Filter O&M-Rev.3 Page 3 of

WA Cowwl:slou E*bltes ocl 3Y 3010
Sme 04 "II) Cotobuo
OURPM COMU4A
140imA unPlic
1IRCE Y OOHHEIIE
W.

UEMLH USE ONLY
Date Rec ived
Fee Paid
Permit Number
I` S 1711
-a0rwa-78 ,,p5=
SUR 090(o,?-
NC DEQ Division of Energy, Mineral and Land Resources rECEIVEPSTATE STORMWATER:PERMIT RENEWAL APPLICATION FORMAY Pu 2iJc1
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8 090108
2. Project name: P-615, New River MCAS Aircraft Apron Expansion, Phase 1 High Density Sand Filter
Protect
3. Project street address: XXX
City: MCB Camp Leieune County: Onslow
ZIP: 28542
4. What, if any, changes have been made to the project as permitted? [N/A
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/abouUdivisions/energv-
mineral-land-resou rces/ene rgy-mineral-land-rules/stormwater-prog ram/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: httl)s:Hdeg.nc.gov/abouUdivisions/energv-mineral-land-
resources/energv-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: MCB Camp Leieune
2. Signing Official's Name: Neal Paul
3. Signing Official's Title: Deputy Public Works Division
4. Mailing Address: MCB Camp Leieune 1005 Michael Rd.
City: MCB Camp Leieune State: NC
ZIP: 28547-2521
5. Street Address:
City: State: ZIP
6. Phone: [phone] Email: [e-mail]
Ep f
MAY 17 2021
BY_
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HOW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
HEB 1. A permit application processing fee of $505.00 payable to NCDEO.
HEB 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
I. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
HEB 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
HEB 4. O&M Agreements, Please select one:
® 1 have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
HEB 5. Designer Certifications, Please select one:
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.goy/online services/search/by title/ Business Registration
E c E I ice'
MAY 11 2021
BY:
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

D. PERMITTE 10ERIT-IFICATION
I, `,0 por . EyaA4X the person legally responsible for the permit, certify that I have
a copy— of the and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the er forms to modify or transfer the permit prior to any changes to the
project, SCMs, or [rmnpl
. All in rm ion provided on this permit renewal application is, to the best of my
knowledge, corr t a te.
Signature: Date: r 2
NOTARIZATION:
a Notary Public for the State of
tl/y U� Nt(r , County of OAS(ov✓ , do hereby certify
that 'ff IZobf� A. LOWd9✓ personally appeared before me
this the `i day of M al 20 21 and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
`�%Jurrrr
(Notary Seat) ������u4ERSOil�i���
W : �01 PRY ;
c>
Notary Signature: �/
My commission expires / 2,02�J o*:. P
&�
MAY 17 2021
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

p

ATI+ �oF WAr , `
O�$NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I
1..4P,ROUECTiINF,,ORMATION F,
Project name
P615 New River Aircraft Apron Expansion: Area B-1
Contact name
Rusty Owens, R.K. Weeks Engineers, LLC
Phone number
[phone]
Dale
April 7, 2009
Drainage area number
i of 3
II.5DESIGNIINF,ORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Sand Filter
Drawdown flow from the BMP 3.80 cis /p-,VA `I os✓R*?TE oyrtR SP/aL'&VAY
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
100,624.00
ft2
Impervious surface area
100,624.00
h2
Percent impervious
100.00
%
Rational C coefficient
0.90
Peak flow from the 1 inlhr storm
2.08
cis
Time of concentration
34.00
min
Rainfall intensity, 10-yr storm
3.94 inmr
Peak flow from the 10-yr storm
8.19
cis
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretenbon cell? N (Y or N)
To awelland? N _(Y or N)
To a filter strip or riparian buffer? Y (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top or bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cis
Answer 'Y' to one of the following
Do ant comdele this section of the workshul.
Do not comp'ele INS section of the worksheet.
Do nor=plate Rus section of the v.Wshest.
Do nor=plate etis section of ale wvvksheet.
Do not complete M section of the workshest,
Do not=plate olds section of the waksheel.
Do act compete this section of the warlWeet.
Do not mmplate Inks section of the W0,10heet.
/p-yA GtoT✓ 2RtF. ZN Bypass GuraAIAI ,
Please cornpete Filter ship characterization befpw.
60.00
it
0.00
It
0.00
If
60.00
If
18.00
first
17.00
fmsl
1.67
% OK
N
(Y or N) OK
NA sgit No folebay is needed.
13 fllcls
'' < * �
I APR 11 2009
I
Length based on the 1 in hr storm?
Length based on the 10-yr storm?
NA
Y or N
(Y or N)
Qo 5pu Lvvk4 -FQto Hf'WoJC — =
/
DE 14,14 how/
Y
Length based on the BMP discharge rate?
Y
(Y or N)
//
Design flow
12.00
cis
There is too much flow to be haM'ad by a level spreader.
Is a bypass device provided?
Y
(Y or N)
A bypass device is not needed.
6yfa5s DE.VILE ZS
�I or✓ SPLIYTY (L,
Form SW401-Level Spreader. Firer Strip, Resuired Riparian Bufler-Rev.5
Parts I. and II. Design Summary, page f of 2

i
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
130.00 fl Level spreader length OK.
NA (Y or N)
N (Y or N)
N (Y or N) Redesign channel to enter saeam at an angle.
3.00 it NOTr'
1.00 It _ SYPA55 G{/ANAiV_ ZS D,�S,y,jFyT e"4nvF, y
35.00 it �7{oRn-�S (�RFiF'1'Fi12 _rNAN TH& f-�'r2.,�- /ae.
1.10 it__D_ESK,rJ .5raRM Ta Y4Fe4 rArVE CILr94
2to cf5 Srizla YER �stonl LAVI Za�8-_Zli,,
Grass - ...._ .
APR 17 2009
Form SW40I-Level Spreader, Filter Sop, Restored Riparian Buffer-Rev.5 Parts 1. and II. Design Summary. page 2 of 2

IIL REQUIRED ITEMS CHECKLIST f
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
�A 111
Sheet No.
41�
1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
- High Bow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader shovnng:
Forebay (if applicable),
- High Bow bypass system,
- One foot lopo lines behveen the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
r�
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
!�
NA
4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
LIWj7 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
n drainage area is stabilized.
t1c+1.C:S 6. The supporting calculations.
��M L17oT>; l 7. A copy of the signed and notarized operation and maintenance (08M) agreement.
ti// 8. A copy of the deed restrictions (if required).
/J07E 0�4HI SudM, 7F_tb OWEZ 7D 1_9AayTd40 NAVV5
I
APR 17 2009
Form SW401-Level Spreader, Filler Strip, Restored Riparian Buffer-Rev.5 Pan III. page I of 1

i
m �,5
NCDENR IAPR 1'4 2009
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM jjY;
-ij
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I
Project name
Contact name
Phone number
Drainage area number
P615 New River Aircraft
4c?
Type of BMP Sand Filter
Drawdown flow from the BMP 5.70 cis /Q_Y/L Fw,r/ RATS O✓EK 5flLLW4{/
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
164,221.00
ft'
Impervious surface area
164,221.00
ftz
Percent impervious
100.00
%
Rational C coefficient
0.90
Peak Flow from the 1 inlhr storm
3.39
cis
Time of concentration
38.00
min
Rainfall intensity, 10-yr storm
3.71 inlhr
Peak Flow from the 10-yr storm
12.59
cfs
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filler strip or riparian buffer? Y (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer 'Y" to one of the following:
Length based on the 1 inthr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design Flow
Is a bypass device provided?
73.00
it
0.00
it
0.00
ft
73.00
it
17.70
fmsl
16.00
fmsl
2.33
%
N
(Y or N)
NA sgit
13 fdcfs
Do not complete this section of the worksheel.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
W not complete this section of the worksheet.
A>-Y9 ic-0W9A7-f; rrJ ByppSS GN4MWF, L
Please complete filler strip characterization below.
OK
OK
No foiebay is needed. ry
NA (Y or N) /t�
Y (YorN) i'5PlLAw*1t-QIoLHAr3l = Vrsi&o FiioVvr
18.30 cfs There is too much flow to be handled by a level spreader.
Y (Y or N) A bypass device is net needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5
Parts I. and II. Design Summary, page 1 of 2

Length of the level lip
130.00
ft
Level spreader is not long enough.
Are level spreadersin series?
NA
(Y or N)
EAPR
009;Bypass
Channel Design (if applicable)Does
the bypass discharge through a wetland?
N
(Y or N)
_�
Does the channel enter the stream at an angle?
N
(Y or N)
Redesign channel to enter stream at an angle.
Dimensions of the channel (see diagram below):
NO- VT
B
z.00
a _iPf155. G/-1A1ViVEC.._rs-.i�ES[4NED__%._._
W
19.00
ft -Ge
M,,Y__.$ToP-rvIS Gr2��TP_P-_ThAN 7RE
y
0.90
a
f
Peak velocity in the channel during the 10-yr storm
3.10
cfs
/- ,roxA .T-o_
_;/�C if]T1.VEj `iL�E',t_ ST/r✓i �E>e
Channel lining material
Grass
___---
+
W
y t
M M
1 B 1
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts L and II. Design Summary, page 2 of 2

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.
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High Flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
y�
kA *1
/),
—f
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High Flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
n �✓I
f` "
I
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
_9A_Q
0
4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
�a
5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
hAm
drainage area is stabilized.
GALC6
6. The supporting calculations.
1107e
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
N24
8. A copy of the deed restrictions (if required).
/JorE y , o4M SUBS ilea !/Vp6� eepi w'ra" Ca✓tom ib Airoey-7tAlu lVku6ii
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1

WDENR APR 1 zt 2009 o�a
STORMWATER.MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION--APPEICATION"FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be ComDletely filled out. orinted and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I
Project name
P615 New River Aircraft Apron Expansion
Contact name
Rusty Owens, R.K. Weeks Engineers, LLC
Phone number
[phone]
Date
April 7, 2009
Drainage area number
3 of 3
Type of BMP Sand Filter
Drawdown flow from the BMP 9.30 cis /Q �`,2 FGljy/Q[�,e SP//•>:1V!} f/
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
307,553.00
ft'
Impervious surface area
307,553.00
ft'
Percent impervious
100.00
%
Rational C coefficient
0.90
Peak flow from the 1 inhr storm
6.35
cfs
Time of concentration
39.00
min
Rainfall intensity, 10-yr storm
3.65 inlhr
Peak flow from the 10-yr storm
23.19
cis
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? Y (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cis
Answer 'Y' to one of the following:
Length based on the 1 inlhr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
/o-/R rL�w,1,47T� ZN Byoa55 t/JV4AINF4_.
Please complete filler step characterization below.
57.00
ft
0.00
It
0.00
ft
57.00
it
12.80
fmsl
11.00
fmsl
3.16
% OK
N
(Y or N) OK
NA sq It No forebay is needed.
13 fucfs
NA (Y or N) Y (YorNQoSPIL.L-WA�/-t-Q 6HANNEL.= F-�SIGfN r GG
,Al
Y (Y or NJ)
j
32.49 cfs There is too much flow to be handled by a level spreader.
Y (Y or N) A bypass device is not needed.E�y-r
fvA55 ;ivILE 15 fF FLo�q/ SPLI ir�12
�JE>U RisifJ5.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Pads I. and II. Design Summary, page 1 of 2

Length of the level lip
Are level spreaders In series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
130.00 ft Level spreader is not long enough.=BXY;
NA (Y or N)
N (Y or N) N (YorN) Redesign channel to enter stream at an angle.
3.00 ft
I. n—SyP_A55_ GHANN�L__Zs _PE S�4�iED Ta-- _-.
18.00 It _Goni y 5rn>e1�?5_c�z_E9 rE�L_T.ran/_T_kE..
1.00 a -__�'i e. 24 Nk. Desea►nC.S.ro,eM._.70 .--- -- - -
2.50 cis
Grass
—.SASS/O.nL lq-W
� w ✓
r
ly-----5`11
-•
M
1 B 4
Forth SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I, and II. Design Summary, page 2 of 2

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.
�Yf1
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High Flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
f rr
6�
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High Flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
P ' M
//
(O
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
n
Downslope filter fabric.
Fps
NA
4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
1
S
5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
Qom
/
6. The supporting calculations.
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
AAm _ 8. A copy of the deed restrictions (if required).
gEPAA& rT ' CpvGe Ta �'�.sey .Tc-stN .V�rv6L6
Form SW401-Level Spreader, Filler Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1

Permit Number: 304c!�
` • - y a\/ .-%---r' (to be provided by D WQ)
��� F7-YA
��WAgOWNCDENR_ ----
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 18M Agreement (Section IV)
Project name
Contact name
Phone number
Date
Drainage area number
II .qDESIGNIINF,ORMATION
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
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
Rusty Owens, R.K. Weeks Engineers, LLC
[phone]
April 7, 2009
1 of 3
2" !?> I Co- 100,624.00 ft'
Storage Volume
Design volume (WQV)
Adjusted water quality volume (WQVAdi)
Volume contained in the sedimentation basin and on top of the sand filter
Maximum head on the sedimentation basin and sand filter (hv,,,Fifted
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
100,624.00 ft'
100.0% %
1.50 in
3.58
in
5.88
in/hr
6.00
ft'/sec
12.20
ft'/sec
6.20
ft'/sec
✓ 11,949.00'ft'
✓ 8,961.75 ft'
5,728,800
3.10 ft
1.55 ft
OK
©_VG(.UMG 6oNT4)r1�,b Iw TH ..,
$RSIfJ-_ShaD FL%ER Zs 9,Zcnc.._..
�t+E.5r72$.80 GF_ DoES rloT APP�y_T .
_�_gH51r1, ww//.SIr7(r/St-OP>;S. _ L(
;_SEA STAGFG1_�o2R(.� Cll2YE.
0.95 (unittess)
Open sand filter?
Y
If this is an open sand filler: The clearance between the bottom of the sand
NA
filter and the SHWT (dSHwr)
Closed/pre-cast sand filter?
N
If this is a closed sand filter: The clearance between the bottom of the sand
NA
filter and the SHWT (dsawr)
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
NA
structure (ds,,)
Insufficient. The adjust-ed-w-afe-r-q-u-aTifFvoiume can not
be contained. Increase area of filter and/or sed. Basin.
OK
OK
Yor ®S1{Nr_D,22,0� gor.ir�vcap _PMP
n® _-15.3_.
Y or N P _LINEo WI GLpy_�{�N -r4i ii _O
Form SW401-Sand Filter-Rev.4 Parts I and II. Project Design Summary, Page 1 of 3

Permit NumbertLy (.-6
(to be provided by DWD)
Sedimentation Basin
Surface area of sedimentation basin (As) ty -- I 840.00 ttZ
Sand Filter
Surface area of sand filter (AF)
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Time to drain the sand filler (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter.?
Is an off-line Flaw -splitting device used?
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 3Oft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 10Oft 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 (WSed)?
What is the depth of sand over the outlet pipe?
Sedimeotariou
Chamber
(or Forebay)
i
Flog•
In -Situ Soil
2* A
�Vs.4
Figure 1: Open Sand Filter
Hixh Water Table
1,008.00 ftz
OK. Meets minimum, but may need to be increased to
contain the required volume if error under Storage
Volume section.
OK. Meets minimum, but may need to be increased to
contain the required volume if error under Storage
Volume section.
Lou n
3.50 (ft/day)
40.00 hours
OK.
Submit drainage calculations.
1.67 days
Y
Y or N
OK
Y
YorN
OK
Y
YorN
OK
60
ft
Y
YorN
OK
Y
YorN
OK
Y
Y or N
OK
Y
Y or N
OK
N
Y or N
Insufficient
ROW location.
22.40 ft
OK
1.50 ft
OK
wD
Smut Filter
Chmwnber
1
Outlet Pipe
dPip. (6
"• A V i rtSH
Form SW401-Sand Filter-Rev.4 Parts I and 11. Project Design Summary, Page 2 or 3

Permit No Yv�
APR y � 2009 (to be provided by DWO)
Please indicate the page or plan sheet numbers where the supporting documentation can be�fouhd. 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.
RAM `{- 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.
q 2. Plan details (1" = 50' 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,
- 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,
- SHWT level(s)
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable)
� 1 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 DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
✓ 5. Supporting calculations (including drainage calculations)
�9NJ ✓ 6. Signed and notarized operation and maintenance (0&M) agreement
R6M -44 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.4 Part III, Page 1 of 1

Permit Number:si (J�o tc�
(to be provided by DWQ)
�CJN W 1TV�D
°F wATE4
egos
o�
NCDENR STORMWATER MANAGEM NT=P-ERMIT_AP`P-LICATION 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)
19PROJEC:AINFORMAT IONr'rs1 =F='
Project name P615 New River Aircraft Apron Expansion : Area 6-2 )
Contact name Rusty Owens, R.K. Weeks Engineers, LLC �J
Phone number [phone]
Date April 7, 2009
Drainage area number 2 of 3
II..TDESIGNIINF,ORMAT,IONU"< " h,,:
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
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
RL 178,160.00 ft2 OK
?io 00 p4— 164,221.00 ft2
92.2% %
1.50 in
Storage Volume
Design volume (WOV)
Adjusted water quality volume (WOVAai)
Volume contained in the sedimentation basin and on top of the sand filter
Maximum head on the sedimentation basin and sand filter (hM.Fine,)
Average head on the sedimentation basin and sand filter 0A)
Runoff Coefficient (Rt,)
Type of Sand Filter
Open sand filter?
If this is an open sand filter: The clearance between the bottom of the sand
filter and the SHWT (ds,,,vr)
Closed/pre-cast sand filter?
If this is a closed sand filter: The clearance between the bottom of the sand
filter and the SHWT (dsHwr)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (ds�)
3.58 in
5.40 in/hr
9.50 3
1990 ft'/sec©Vot—L1MFi_6ONTAINEj)ZN.TNF,_SED,_SA51�
10.40 ft'/sec SAP FILT.Fi12 25_%i?yDq),GF TNE_
/6r749.50GF ;bb,EsNoIr APR.. r, �..
$/fi5ldW�51IX 5wPE3._ i 5f)L4y �fbKJL11E
19,501.00 ft, % Vll
14,625.75 it'..- Insu Iclen .The adjusted water quality volume can not
10,748.500 be contained. Increase area of filter and/or sed. Basin.
3.50 ft OK
1.75It OK
0.88 (unitless)
Y YorN 5p{�iIN-r,ElL2(,Q,,BMPBOTEL.�4.5.
NA ft®
_LINFO W�/�� GLA.'_SUGM-TkA7'-G,ezUND
N -
Y or INWATE2....Vr1�c,.. V/aY.--
NA ft
NA
Form SW401-Sand Filter-Rev.4 Parts I and II. Project Design Summary, Page 1 of 3

Permit Number,a IJikz)V
(to be provided by DWQ)
Sedimentation Basing �+^i1Vi�;]D
I
Surface area of sedimentation basin (As) A p R Y 1 2009
Sand Filter BY:
Surface area of sand filter (AF)
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
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?
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 Flaw?
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 chamber/forebay (Ws,)?
What is the depth of sand over the outlet pipe?
Sedinuotation
Chamber
(or Forebay)
i
Floc
ht-Sim Soil
?' ft
«rSed
Figure 1: Open Sand Filter
Hish WalesTable
OK. Meets minimum, but may need to be increased to
1,397.00 ft=
contain the required volume if error under Storage
Volume section.
OK. Meets minimum, but may need to be increased to
1,674.00 ft2
contain the required volume if error under Storage
Volume section.
1.50 It
3.50 (t/day)
40.00hours
OK. Submit drainage calculations.
1.67 days
Y
YorN
OK
Y
YorN
OK
Y
YorN
OK
73
It
Y
YorN
OK
Y
YorN
OK
Y
Y or N
OK
Y
Y or N
OK
N
Y or N
Insufficient ROW location.
28.00 It
Ok
1.50 It
OK
Sind Filter
Cl��mba'
Owlet Pipe
dpip. i dp
,• � i i rlsxwr
Form SW401-Sand Filter-Rev.4 Parts I and If. Project Design Summary, Page 2 of 3

i L
APR T 20J9
Permit
(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.
,1 r'Hi 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.
q 2. Plan details (1" = 50' 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,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
Cf 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,
SHWT level(s)
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (it
applicable)
PY LG 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 DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
E?9M�°L ✓ 5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) agreement
_4A 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.4 Part III, Page 1 of 1

Permit Number$ l„ J<4'1✓ J"�0
, (to be provided by uvvu)
�F'o►� APR 1 g 2009 oz°�INATFgoG
rN
NCDENR STORMWATEftB NAGEMENT PERMIT APPLICATION FORM o
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 18M Agreement (Section IV)
Project name
Contact name
Phone number
Date
Drainage area number
Rusty Owens, R.K. Weeks Engineers, LLC
[phone]
Aod17.2009
3 of
II!tDESIGNIINFORMATION "
Site Characteristics _
Drainage area (Ao) ..at 153,776.50 ft2
OK
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 (WQV)
Adjusted water quality volume (WQVpai)
Volume contained in the sedimentation basin and on top of the sand filter
Maximum head on the sedimentation basin and sand filter (IbMa.Rfter)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
If this is an open sand filter: The clearance between the bottom of the sand
filter and the SHWT (dsw)
Closed/pre-cast sand filter?
If this is a closed sand filter: The clearance between the bottom of the sand
filter and the SHWT (dSHwr)
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 (dsp.)
153,776.50 ft'
100.0% %
1.50 in
3.58
in
5.17
in/hr
ft'/sec
520
16.40
ft3lsec
11.20
ft'/sec "T
18,260.00 ft'
13,695.00 ft'
9,476.78
3.15 ft
AIF, 3:N. Tr E..-_- -
iCa£ �/IQ I/G f
be contained. Increase area of filter and/or sed. Basin.
OK
1.58 ft OK
0.95 (unitless)
Y YorN
NA ft ®—P��'roM..-SI...a✓IGPFiS-rTc�
N YorNltFiA._..W/y$4U{..JCif}7_....—
ft ------
GzaaNdw r .-�
NA N T_-.S�E2.$M ,-
NA
Form SW401-Sand Filter-Rev.4 Parts I and II. Project Design Summary, Page 1 of 3

Sedimentation Basin
Surface area of sedimentation basin (As)
Sand Filter
Surface area of sand filter (AF)
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Time to drain the sand filter (t)
Time to drain the sand filter (t)
APR 2009
BY: -
1,475.50 ft'
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
Does volume in excess of the design volume flow evenly distributed through a
vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (W$ed)?
What is the depth of sand over the outlet pipe?
Sedimentation
Chamber
(or Foreba,l
------- lk�
F1otr
AvSed
Figure 1: Open Sand Filter
1,533.00 ft'
Permit Numb��Qp p
(to be provided by DWO)
OK. Meets minimum, but may need to be increased to
contain the required volume if error under Storage
Volume section.
OK. Meets minimum, but may need to be increased to
contain the required volume if error under Storage
Volume section.
1.50 ft
3.50 (ft/day)
40.00hours OK. Submit drainage calculations.
1.67 days
Y YorN OK
Y YorN OK
Y Y or N OK
57 it
Y Y or N OK
Y YorN OK
Y YorN OK
Y YorN OK
N Y or N Insufficient ROW location.
8 to 25 ft OK
1.50 ft OK
Saud Filter
l•INlllber
i
Ontlrt Yips
Wr
Form SW401-Sand Filler-Rev.4 Parts I and 11. Project Design Summary, Page 2 of 3

Permit N's
1 2009 (to be provided by D WO)
Please indicate the page or plan sheet numbers where the &O Ling documentatiowcah 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.
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.
all
2. Plan details (1" = 50' 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,
- 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,
- SHWT level(s)
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable)
p
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 DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
5. Supporting calculations (including drainage calculations)
�Q[�%1 ✓
6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.4 Part III, Page 1 of 1

-W O* bq- 61v4 -1
State Stormwater Management Svstems
` Permit No. SW8-090108
P-615, New River MCAS Aircraft Apron Expansion, Phase 1
Stormwater Permit No. SW8-090108 ✓/
Onslow County
Designer's Certification
James J: Burns Engineer
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,
P-615, Aircraft Apron Expansion, Phase 1, MCAS New River MCAS
(Project)
for US Marine Corps, Camp Lejeune (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number 31185
Date ( 11
OP'(H CAg9 ,,
¢Isfi _
_
S L
NGIN...... �
'nnnm••
AUU 0 4 Z511

State Stormwater Management Systems
Permit No. SW8 090108
Page 2 of 2
Certification Requirements:
— 1. The drainage area to the system contains approximately the permitted acreage.
V 2. The drainage area to the system contains no more than the permitted amount of
built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff
n — drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
M 5. The bypass structure weir elevation is per the approved plan.
f�6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
1 8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-circuiting of
I✓ the system.
11. The permitted amounts of surface area and/or volume have been provided.
/12. All required design depths are provided.
N 13. All required parts of the system are provided.
�Zl 4. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Onslow County Building Inspections
Page 7 of 7

DEPARTMENT OF THE NAVY TELEPIIONE:
,,,yslil%j�. `� OFFICER IN CHARGE OF CONSTRUCTION 910-449.5587
RESIDENT OFFICER IN CHARGE OF CONSTRUCTION FAX [phone]
NAVAL FACILITIES ENGINEERING COMMAND CONTRACTS IN REPLY REFER TO:
1005 MICHAEL ROAD
CAMP LEJEUNF., NC 28547.2521 JAX/yib
22 Jul 2011
From: Jim Burns, SCM OICC
To: Carl Baker, Deputy PWO
Subj: N40085-09-C-3203, P615 - AIRCRAFT PARKING APRON ADDITION, PHASE I,
MCAS NEW RIVER, NC, STORM WATER PERMIT SW8-090108
Ref: (a) Storm Water Permit SW8-090108
Encl: (1) Engineering Certification
1. As required by reference (a), enclosure (1) provides the Engineer's Certification.
2. If there are any further questions concerning the subject contract, please call the undersigned at
[phone].
�J. J. Burns P.E.
Copy to
EMD (Attn L Acosta with original permit)
Quality Performance ... Quality Results