HomeMy WebLinkAboutSW8080653_CURRENT PERMIT_20210601STORMWATER DIVISION CODING SHEET
POST —CONSTRUCTION PERMITS
PERMIT NO.
SW8 0%01P53
DOC TYPE
'r� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2021 C) sy 01
YYYYMMDD
I
ROY COOPER
Covernnr
DIONNE DELLI-GATTI
Secretary
BRIAN WRENN
Dtrecror
June 1, 2021
Marine Corps Base Camp Lejeune
Attn: Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeurre, NC 28547
NORTH CAROLINA
Envtronmenra!Qualtty
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 080653
MCAS New River Aircraft Maintenance Hanger
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 080653 has been renewed
on June 1, 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 terns 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 November 19, 2008 will remain
in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000.
This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the
conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed
restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish
an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions,
to transfer the permit, or to renew the permit, will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAR). The written
petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within
thirty (30) days of receipt of this permit. You should contact the 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 (910) 796-7215 or ashleym.smith@ncdenr.gov.
Sincerely,
C 9-W
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
Na®� ~- urc North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resoes
Wilmington Regional ice 1127 Cardinal Drive Extension I Wilmington. North Carolina 28405
mew�'==arrm.r� 910.796.7215
IN
Enclosures:
DES/ams:
cc:
Attachment C — Permitting History
Renewal Application Documents
\\\Stormwater\Permits & Projects\2008\080653 HD\2021 06 permit 080653
NCDEQ-DEMLR Wilmington Regional Office
State Storrnwater Permit No. SW8 070831
Page 2 of 2
®VR �J� WiNorth Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
lmington Regional Office 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28405
'wnrH cnncuNn
ae.urawe,,..imq 910.796.7215
State Stormwater Management Systems
Permit No. SW8 080653
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
USMCB Camp Lejeune
MCAS New River Aircraft Maintenance Hanger (P-526/P-651)
Campbell Street, Camp Lejeune, Onslow County
161:4=0
construction, operation and maintenance of a wet detention pond and filter strip in
compliance with the provisions of Session Law 2006-246 and 15A NCAC 2H .1000
(hereafter 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:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.7 and 1.8 of this permit. The stormwater controls have been
designed to handle the runoff from a total of 180,525 square feet of impervious area.
The tract will be limited to the amount of built -upon area indicated in Section 1.7 and 1.8
on page 3 of this permit, and per approved plans.
All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
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 6
State Stormwater Management Systems
Permit No. SW8 080653
6. The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
A 30 foot filter strip has been provided for the 1,731 square feet of built -upon area added
to the hanger parking apron and must be maintained at design condition
8. The following design criteria have been provided in the wet detention pond and must be
maintained at design condition:
a.
Drainage Area, acres:
8.43
Onsite, ft2:
355726
Offsite, ft2:
11296
b.
Total Impervious Surfaces, ft2:
178,794
Buildings, ft2:
73,774
Roads/Parking, ft2:
101,481
Sidewalk & Concrete, ft2:
1,729
Offsite, ft2:
1,810
c.
Average Pond Design Depth, feet:
3.08
d.
TSS removal efficiency:
90%
e.
Design Storm:
1.5"
f.
Basin Bottom Elev., FMSL:
5.0
g.
Sediment Cleanout Elev., FMSL: 6.0
h.
Permanent Pool Elevation, FMSL:
10.0
i.
Permanent Pool Surface Area, ft2:
36,797
j.
Storage Elevation, FMSL:
11.4
k.
Permitted Storage Volume, ft3:
58,767
I.
Predevelopment 1-yr 24-hr discharge rate, ft3/s:
14.77
m.
Controlling Orifice:
2"0 pipe
n.
Post development treatment volume
discharge rate, ft"s:
0.10
o.
Permanent Pool Volume, ft3:
103,290
p.
Forebay Volume, ft3:
20,995
q.
Maximum Fountain Horsepower:
1/3
r.
Receiving Stream / River Basin:
New River / White Oak
s.
Stream Index Number:
19-(15.5)
t.
Classification of Water Body:
"Sc, NSW'
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
Page 2 of 6
State Stormwater Management Systems
Permit No. SW8 080653
3. The permittee shall at all time 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 strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, level spreader,
filter strip, catch basins and piping.
q. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The records
will indicate the date, activity, name of person performing the work and what actions
were taken.
5. Decorative spray fountains are allowed in the pond, subject to the following criteria:
a. The minimum permanent pool volume is 30,000 cubic feet.
b. The fountain must draw its water from less than 2' below the permanent pool
surface.
C. Separated units, where the nozzle, pump and intake are connected by tubing,
may be used only if they draw water from the surface in the deepest part of the
pond.
d. The fountain may not be placed into the forebay.
e. The falling water from the fountain must be centered in the main pond, away from
the shoreline.
f.. The maximum horsepower for a fountain in this pond is 1/3 horsepower.
6. The permittee shall submit to the Division an annual summary report of the maintenance
inspection records for each BMP. The report shall summarize the inspection dates,
results of the inspections, and the maintenance work performed at each inspection.
Access to the stormwater facilities shall be maintained via appropriate easements at all
times.
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.
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.
10, 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 3 of 6
State Stormwater Management Systems
Permit No. SW8 080653
11. The Director may notify the permittee when the permitted site does not meet one or
more of the minimum requirements of the permit. Within the time frame specified in the
notice, the permittee shall submit a written time schedule to the Director for modifying
the site to meet minimum requirements. The permittee shall provide copies of revised
plans and certification in writing to the Director that the changes have been made.
12. 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.
13. 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
1. 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.
2. 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.
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.
Page 4 of 6
State Stormwater Management Systems
Permit No. SW8 080653
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 5 of 6
State Stormwater Management Systems
Permit No. SW8 080653
Permit renewed, updated and reissued this the 1 st day of June 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
.j. nan Wrenn, Uirector
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 6 of 6
Attachment C - Permitting History
MCAS New River Aircraft Maintenance Hangar P 526 P65
Permit No. SW8 080653
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
11/19/2008
Original
Approval
1.0
6/1/2021
Renewal
2.0
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for SW8 080653_ will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8080653 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8080653.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary —
DEC 2 3 2011
BY:
=1
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
Print name: Mr. Carl Baker
Title: Deputy Public Works Officer
Address: 1005 Michael Street, Camp Lejeune, NC
Phone: 910-451-2213
Signature: /; 4L
Date: -..OIL- k.l
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for SW8 960509 will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8960509 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8960509.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for SW8 090117 will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8090117 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8090117.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for SW8970847 Will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8970847 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8 970847.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for SW8970927 will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8970927 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8970927.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
6
BASH MITIGATION —STORMWATER PLANTINGS OPERATION AND MAINTENANCE AGREEMENT
ADDENDUM
The original operation and maintenance agreement for 5W8 080653 will be followed with the addition
of this addendum.
Important operation and maintenance procedures:
• Immediately following all scheduled plantings, the plants will be watered twice weekly if needed
until the plants become established;
• No fertilization of plants will occur after the first initial fertilization;
• Stable ground cover will be maintained in the drainage area to reduce the sediment load to the
wet detention basin;
The stormwater treatment measure(s) associated with SW8 080653 will be inspected once a month and
within 24 hours after every storm event greater than 1.5 inches (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 in addition to original inspection activities listed on
the operation and maintenance agreement associated with SW8080653.
BMP element:
Potential problems:
How I will remediate the problem:
The perimeter of the
Bare soils and/or erosive gullies
Regrade, backfill, compact and
wet detention basin
have formed
permanently stabilize, as needed, all
bare/eroded areas
Vegetation is too short or too
Maintain grassy/leafy vegetation at a
long
height of approximately six inches with the
exception of the pilot project plantings;
Determined trees and shrubs may grow
over six inches
Tree/Shrub plantings
Best professional practices show
Prune according to specific plant
that pruning is needed to
requirements
maintain optimal plant health
Plants are dead, diseased or
Determine the source of the problem:
dying
soils, hydrology, disease, etc. Remedy the
problem and replace plants. Provide a
one-time fertilizer application to establish
the ground cover if a soil test indicates it is
necessary
Tree stakes/wires are present six
Remove tree stakes/wires
months after planting
Ponds can't be accessed for
Work over the tops of the shrubs or
sedimentation removal or other
remove tree/shrub planting and replace
required maintenance
them after pond sedimentation removal or
other required maintenance is complete
W
d
0
a
0
2
a
Permit Number: O �U (a
(to be provider! by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not
This system (check one):
❑ does ® does not
incorporate a vegetated filter at the outlet.
incorporate pretreatment other than a forebay.
Important maintenance procedures:
- Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
- No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
- Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
- Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The entire BMP
Trash debris is present.
Remove the Mash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Fora SW401-Wet Detention Basin O&M-Rev.3
aF,�`PYNTED
OCT 0 .9P0,9eEI of4
BY:
�./�' Permit Number: oU �-(42'�3
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
Swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.3 OCT 0 8 2008 Page 2 of 4
DWO
PROJ N
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
I Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 4 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 4 feet in the forebay, the sediment shall
be removed.
BASIN DIAGRAM
(Jill in the blanks)
Permanent Pool Elevation 10
Sediment Removal . 6 1 Pe anen Pool
-------------- -- Volume Sediment Removal Elevation Volume
Bottom Elevatio 5 -tt Min. --------------------------------------------------
Sediment Bottom Elevation 5 I-ft n
Storage Sedimet
Storage
FOREBAY MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.3
E, C E I V ED
luutll OCT 0 8 2008
DWQ
Page 3 of 4
PROJ#
Permit Number:
(to be provided by DWQ)
I 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:MCAS NEW RIVER MAINTENANCE HANGAR
BMP drainage area number: P-526 / P-651 DA #1
Print
Title:Deputy Public Works Officer
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.
hDgeJ2a , a Notary Public for the State of
/V�r�/1 CQja�iu County of 0✓1 ,/ , do hereby certify that �t
personally appeared before me this
day of d t 4c)of , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
AUCE A IONNEM
Hoary PWIC
OnMaw CouraV
6Mft of North Caron
SEAL
My commission expires j� t.V
Form SW401-Wet Detention Basin O&M-Rev.3
j�E C E 1 V ED
OCT 0 8 2008
DWO
PROJ #
Page 4 of 4
Permit Number- .5�y0'� 6(0�3
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How 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.
�C %/
OCT 3 0 2008
i
Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page I of 3
_ -D
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.
ocT 3 0 200E
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3
Permit Number: , A'LJ 0 U 9642 S'5
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:MCAS NEW RIVER MAINTENANCE HANGAR
BMP drainage area number: P-526 / P-651 DA #1
Print name:Carl Baker, PE
Title:Director, Design Branch, Public Works Division, Camp Lejeune
Date: io -.23 - D19
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_f�f� a Notary Public for the State of
N�'f7/CI, 1111i'_' —,County of do hereby certify that
personally appeared before me this
day of (VeAu , AaW , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
OrdIM County
Stag of f4otth Carolina
mmlttlat IXDIt95 Oct 21
SEAL
My commission expires c� Oel c'fw0
0
//
PzECZIIVEI_D
OCT 3 0 2008
BY:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M
Page 3 of 3
Cowunum s.ouee pcl 32, 3010
000 04OIp41A GaiopUo
oumm conuN
"tc
vies v so"LLE
nFMI H I NF ONI Y
Date Rec ived
Fee Paid
Permit Number
I I a
w W-37Fs Sc5
SWE� 0&06S3
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM MAY
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 080653
2. Project name: MCAS New River Aircraft Maintenance Hanqer (P-526/P-651) High Desnitv Commercial
Wet Pond Project
3. Project street address: XXX
City: MCB Camp Leieune County: Onslow
ZIP: 28542
4. What, if any, changes have been made to the project as permitted? N/A
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/about/divisions/enerqv-
mi ne ral-land-resou rces/ene rgy-m ine ral-land-rules/sto rmwater-pros ram/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https:Hdeg.nc.gov/about/divisions/energv-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: MCB Camp Leieune
2. Signing Official's Name: Neal Paul
3. Signing Official's Title: Deputy Public Works Division
4. Mailing Address: MCB Camp Leieune 1005 Michael Rd.
City: MCB Camp Leieune State: NC
ZIP: 28547-2521
5. Street Address:
City: State: ZIP
6. Phone: (910) 451-2213 Email: neal.paul@usmc.mil
EGEN"Ell
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 HQW/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 NCDEQ.
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.gov/online services/search/bv title/ Business Registration
ECEIV
MAY 17 2021
BY:
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
D. PERMITT 'S CERTIFICATIOJN7
I, D�1'� 4. blJ� the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCM W
rship. AI rrfa mation provided on this permit renewal application is, to the best of my
knowledge, orre c ahplet�
Signature: ° Date: t 7.�
NOTARIZATION:
a Notary Public for the State of
I , do hereby certify
that 10l t"a 0. Lbwdx personally appeared before me
this the 1_1 day of (nn di 20 and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
``%uurrrrii
(Notary Seal) ` ��\� \V ERS'O',,'
lv NpTAR), '.
Notary Signature: _ U
My commission expires t 0.
%�0• �;�:
CO
ECEJVE k
MAY 17 2021
BY:
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018
l
1A
Permit No.
(to be provide by DWO)
FIMA
NCDENR
Project name
Contact person
Phone number
Date
Drainage area number
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
MCAS New River Aircraft
Joe Puckett, PE Stewart Engineering
919-8664829
11/11/2008
O20" W Ar f;s,
> r
0
II: DESIGN INFORMATION'
Site Characteristics
Drainage area
367,022.00
ft'
Impervious area
178,7940
ft'
`y, impervious
48.71
%
Design rainfall depth
1.50
in
Storage Volume: Non -SR Waters
Minimum volume required
22,408.00
ft"
Volume provided
58,767.00
ft"
Storage Volume: SR Waters
1-yr, 24-hr runoff depth
in
Pre -development 1-yr, 24-hr runoff
ff3
Post -development 1-yr, 24-hr runoff
fit
Minimum volume required
fit
Volume provided
its
Peak Flow Calculations
1-yr, 24-hr rainfall depth
3.68
in
Rational C, pre -development
0.46
(unitless)
Rational C, post -development
0.87
(unilless)
Rainfall intensity: 1-yr, 24-hr storm
0.15
iruhr
Pre -development 1-yr, 24-hr peak flow
14.77
ft"/sec
Post -development 1-yr, 24-hr peak flow
11.47
ft/sec
Pre/Post 1-yr, 24-hr peak flow control
-3.30
It3/sec
Basin Elevations
Basin bottom elevation
5.00
It
Sediment cleanout elevation
6.00
It
Bottom of shelf elevation
9.50
ft
Permanent pool elevation
10.00
ft
SHWT elevation
10.75
ft
Top of shelf elevation
10.50
h
Temporary pool elevation
11.40
tt
NOV 1 2 200�
BY:_---_.
Form SW401-Wet Detention Basin-Rev.4 Parts 1.811. Design Summary, Page 1 of 2
Permit No, eprovK��)
(to be povideU by D WOJWATION
Volume and Surface Area Calculations
SAIDA ratio
5.60
(unitless)
Surface area at the bottom of shelf
31,768.00
f?
Volume at the bottom of shelf
86,683.00
h'
Permanent pool, surface area required
-NA0699
it, GL06 5k
Permanent pool, surface area provided
36,797.00
fe OK
Permanent pool volume .
103,290.00
ff'
Average depth for SAIDA tables 3, Or taf
2.81
it
Surface area at the top of shelf W ep ow,,I* (00 z)
41,983.00
ttz
Volume at the top of shelf
122,985.00
ff'
Forebay volume
20,995.00
ft'
Forebay % of permanent pool volume
20.33
%
Temporary pool, surface area provided
44,850.00
fe
Drawdown Calculations
Treatment volume drawdown time
Treatment volume discharge rate
Pre -development 1-yr, 24-hr discharge
Post -development 1-yr, 24-hr discharge
Additional Information
Diameter of orifice
Design TSS removal
Basin side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow 8 orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies
2.53
days
0.10
tt'/s
14.77
it'/s
11.47
ft'Is
3 in
90 %
3.00 :1
10.00 :1
10.00 If
4.66 :1
4.66 :1
y (Y or N)
1.00 it
N (Y or N)
N (Y or N)
Y (Y or N)
12-aW-,,A rJ
Minimum of 3 it required, Increase depth
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Design must be based on 90°k TSS removal
Need a recorded drainage easement
OK
/ elt,4 t.ct!✓.a- d&tt
-2 S ' i-6 kl� P" -)Ivl-
Form SW401-Wet Detention Basin-Rev.4 Parts I. a If. Design Summary, Page 2 of 2
PertnhNo—(f!�!A(¢- 3
(to be provided 6y DW0)
IB:.'REQUIREmirr oECKuST
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. 0 a
requirement has not been met, attach justification.
Page/ Plan
Inifials Sheet No.
%¢ CG /or —
1. Plans (t' - 50' or larger) of the entire she showing:
C G /0 S-
Design at ultimate buitd•cut,
Oft -she drainage (if applicable) )
Delineated drainage basins Qndude Rational C coefficient per basin),
Basin dimensions. N 0 V 1 �• i U",
Pretreatment system,
High flow bypass system,
BY:
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
C61os*
2. Partial plan (1' = Sty or larger) and details for the wet detention basin showing:
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
• Forebay and main pond with hardened emergency spillway,
- Basin cross-section,
- Vegetation specification for planting shell, and
• Filler ship.
3. Section view of the dry detention basin (1' = 2(Y or larger) showing:
• Side slopes, 3:1 or lower,
• Pretreatment and treatment areas, and
• Inlet and outlet structures.
4, If the basin is used for sediment and erosion control during construction, dean out of the basin is specified
on the plans prior to use as a wet detention basin.
L- h 5. A table of elevations, areas, Incremental volumes 8 accumulated volumes for overall pond and for forebay
to verify volume provided.
Gblas
8. A construction sequence dret shows how the wet detention basin wig be protected from sediment until the
entire drainage area Is stabilized.
7. The supporting calculations.
/9
rL
1
8. A copy of the signed and notarized operation and maintenance (O&M) agreement.
9. A copy of the deed restrictions (h required).
10. /Ai soils report that is based upon an actual Bold Investigation,
soli borings, and Infiltration testa. County
soli maps are not an acceptable source of soils Information.
Foon SW401-Wel Detention Ba9IRRev.4 Part M. Required Items Checklist Page 1 of 1
MA �oG WarF9
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely (lied out, punted and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I
1. PROJECTJNFORMATION , i'-°,' =''3 x `1116 ' +; "I ,
Project name MICAS NEW RIVER HANGAR
Contact name JOSEPH PUCKETT, PE STEWART ENGINEERING INC
Phone number 919-866-4829
Date October 8, 2008
Drainage area number
STRIP
111. DESIGWINF,ORMATION .,,A' —
For Level Spreaders Receiving Flow From a BMP
Type of BMP NIA
Drawdown flow from the BMP NIA cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr slam
Where Does the Level Spreader Discharge?
To a grassed biaetendon cell?
To a mulched bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
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 lop 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 in hr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design now
Is a bypass device provided?
Do not complete this wcuon of the worksheet.
h2
On not complete this section of the waksheet.
h'
Do M complete this section of the mlisheet.
%
Do net complete this section of the worksheer
Do M tornplete this section of the worksheet.
cis
Do not complete this section of the mlisheet.
min
irllhr
Do net complete this section d the workSheet.
cis
Do no co iftite this section of the worksheet.
N (YaN)
N (YorN)
N (Y or N)
N (Y or N)
NO LEVEL SPREADER, JUST A FILTER STRIP FOR 4,651 SF ON IMPERVIOUS
30.00
h
0.00
ft
0.00
h
30.00
it
15.00
fmsl
15.13
trust
-0.43
% OK
N
(Y or N) OK
0.00 sq it
13 ItIds
N
(Y or N)
Y
(Y or N)
N
(Y or N)
0.39
cis
N
(Y or N)
R
R 1�TVl�D
No faebay is needed.
_�
A bypass device is not recited.
Farm SW401-1-evel spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. arM It. Design Summery, page 1 of 3
-4
Lengfh of the level lip
99.00 It
+VALUE!
Are level spreaders in series?
N (Y or N)
Bypass Channel Destgn (If applicable)
Does the bypass discharge through a wetland?
(Y or N)
Do nth complete this section of the workshcel.
Does the channel enter the stream at an angle?
(Y or N)
Do net complete this section of the worksheet.
Dimensions of the channel (see diagram below):
Do not complete this section of the worksheet.
M
h
Do not complete this section of the worksheel.
B
It
Do not complete this section of the worksheet.
W
III
Do not complete sus section of the works1w.
y
ft
Do not complete this social of the workshea.
Peak velocity in the channel during the 10-yr storm
cfs
Do not compete this section of the worksheet.
Channel lining material
Do not compete this section of the worksheet.
w
t�
Y
.............
M
B
M
RECFTN7]ED
OCT 1 3 7008
BY:
Form SW401-Level Spreader, Filter Strip, Restored Riparian Butter-Rev.5 Parts I. and II. Design Summary, page 2 of 3
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An Incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below.if a
requirement has not been met, attach Justification.
Pagel Plan
Initials Sheet No.
JWP CG101 1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (it 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.
JWP CG103 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.
JWP 3. Section view of the level spreader (1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
- Upslope channel, and
Downslope filter fabric.
JWP 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
JWP CG106 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
JWP SIA 6. The supporting calculations.
JWP 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
JWP B. A copy of the deed restrictions (if required).
RECEWEL
OCT 1 3 7008
BY:
_�l
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 3 of 3
NU'J ZU-2UU8 'fHU Uti 1Z AM NGUrNK [.,rHA avU-. UIU rOUu�cuuv -I "''UU/,U,.r„n w
State Stormwater Management. Systems
Permit No. SW8 080653
MCAS New River Aircraft Maintenance Hanger (P-526/P-651) l
Stormwater Permit No. SW8 080653
Onslow Countv
Designer's Certification
I, 'JosetN '�r&cXvTT as a duly registered Fryn%,•w#A- 0I41NGbIt4n the
State of North Carolina, having been authorized to observe (e io ' y/ weekly/ full
time) the construction of the project,
J ACAS 14ev-� T-Wc'L Ne-e -r } WAO- 6P-5Z(6 I P W i
(Project) 5„v $— oBotpv$
for asmq Owl Le7Zu,✓8 (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:
f 10 AIB.
Signature u- A'44L
Registration Number 055777
Date
•-71 ZW 2010
Page 7 of 8
SEAL.
�\�OepFERd
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4 SEAL
033779
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AUG 03 2010
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State Stormwater Management Systems
Permit No. SW8 080653
Certification Requirements:
�1. The drainage area to the system contains approximately the permitted
acreage.
JvJ9 ✓ 2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
-SW ✓ 3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
GAWP ✓ 4. All roof drains are located such that the runoff is directed into the system.
ot.rP ✓ 5. The outlet/bypass structure elevations are per the approved plan.
Soap ✓ 6. The outlet structure is located per the approved plans.
-Zw4 ✓7. Trash rack is provided on the outlet/bypass structure.
Vtmf ✓ 8. All slopes are grassed with permanent vegetation.
—sw* ✓ 9. Vegetated slopes are no steeper than 3:1.
t5wf ✓ 10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
Sirf i/ 11. The permitted amounts of surface area and/or volume have been
provided.
5wP ✓ 12, Required drawdown devices are correctly sized per the approved plans.
3ft-P i,i 13. All required design depths are provided.
-ID-1f ✓ 14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay,
50-4 ✓ 15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Onslow County Building Inspections
Page 8 of 8