HomeMy WebLinkAboutSW8130112_CURRENT PERMIT_20210730STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 lap 12
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2U21 o-,
YYYYMMDD
ROY COOPER
Governor
DIONNE DEW -GATT
BRIAN WRENN
Director
July 30, 2021
Marine Corps Base Camp Lejeune
Attn: Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeune, NC 28547
NORTH CAROUNA
Ertrhonmeatat Quality
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 130112
P1253 2D Combat Engineer Battalion Ops Maintenance Complex
Onslow County
Dear Mr. Paul:
Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality
(D WQ) to the Division of Energy, Mineral and Land Resources (DEMLR). All previous references to D WQ 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 July 27, 2021. The Division is hereby notifying you that permit SW8 130112 has been renewed
on July 30, 2021, and shall be effective until March 6, 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 March 6, 2013 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 (910) 796-7215 or ashleym.smith@ncdenr.gov.
Sincerely,
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
®� North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28405
910.796.7215
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State Stormwater Permit No. SW8 130112
Page 2 of 2
Enclosures:
DES/arcs:
cc:
Attachment C — Permitting History
Renewal Application Documents
%Stormwater\Permits & Projects\2013\130112 HDt2021 06 permit 130112
NCDEQ-DEMLR Wilmington Regional Office
® � AV kJ� North Carolina Department of Environmental Quality I Division of Energy, Kinerai and Land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington. North Carolina 28405
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State Stormwater Management Systems
Permit No. SW8 130112
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL DEVELOPMENT SA WATERS
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
US MCB Camp Lejeune
P-1253 2D Combat Engineer Battalion Ops / Maintenance Complex
Snead's Ferry Road (NC 172), Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of two (2) wet detention ponds discharging to Class SA
waters in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211
(hereafter collectively referred to as the "stormwater rules') 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 March 6, 2029, and shall be subject to the
following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.12 and 13 on page 3 of this permit. The stormwater controls labeled
DA1 and DA2 have been designed to handle the runoff from 1,164,859 and 585,393 square
feet of impervious area, respectively.
3. The drainage areas will be limited to the amount of built -upon area indicated in Sections 1.2
and 1.12 of this permit, and per approved plans.
4. The volume in excess of the design storm from the wet pond must flow overland through a
level spreader and 50-foot vegetated filter strip designed to pass the peak flow from the 10
year storm in a diffuse, non -erosive manner.
Page 1 of 6
State Stormwater Management Systems
Permit No. SW8 130112
5. An alternative design has been proposed for the level spreaders and vegetated filter strips
required to handle the volume in excess of the design storm from the wet detention ponds.
Based on the sealed and signed professional engineers statement and plans, the Division is
allowing this design. If the level spreader and filter strip design are found to not meet the
intent of the stormwater rules and/or are found to cause erosion or channelized flow, the
permit holder will be required to install the bypass system as recommended by the NC BMP
Manual or propose another alternative design.
Upon completion of construction and certification of the system and continuing for a period of 3
years, the permittee shall submit to the Division quarterly reports for the level spreaders and
filter strips to the attention of either the State Stormwater Supervisor or the lead Stormwater
Engineer in the Wilmington Regional Office. These level spreaders and filter strips have been
approved as an alternative design and therefore it must be demonstrated that they are
functioning as designed. The quarterly reports must include photos documenting the current
condition of the level spreader and filter strip as well as describe the maintenance performed.
After 3 years of compliant reporting, the permittee may submit a request to the Division to lift
the quarterly report requirement. The request must include supporting documentation such as
rainfall records and photos demonstrating that the system can accommodate the larger design
flows without erosion of channelization.
In addition to the stormwater system, there is an approximately 5.5 acre 'dig pit' that will be
continuously disturbed for equipment training operations. This pit has been designed to
function as a large sediment basin with an overflow pipe set at an elevation 3 feet above the
bottom of the pit. It has been demonstrated that the 10-year, 24-hour storm event will be able
to infiltrate within the pit area and thus will not create a discharge to SA waters as prohibited
by Session Law 2008-211.
A 50' wide vegetative buffer must be provided and maintained adjacent surface waters,
measured horizontally from and perpendicular to the normal pool of impounded structures, the
top of bank of both sides of streams and rivers and the mean high water line of tidal waters.
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
required easements.
10. The runoff from all built -upon area within the permitted drainage area(s) of this project must be
directed into the permitted stormwater control system.
11. The additional rainwater harvesting system shown on the plans has not been demonstrated to
meet the State Stormwater BMP design requirements and therefore is not considered a part of
the approved state stormwater treatment system. This additional measure is incorporated only
by reference and is not an enforceable part of the permit.
Page 2 of 6
State Stormwater Management Systems
Permit No. SW8 130112
12. The following design criteria have been provided in the wet detention pond and must be
maintained at design condition:
Design Criteria
DA7
DA2
a. Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
35.94
1,565,484
0
15.33
667,956
0
b. Total Impervious Surfaces, ft :
Onsite, ft2:
Offsite, ft2:
1,164,859
1,164,859
0
585,393
585,393
0
d. Design Storm, in:
3.8
3.8
e. Average Design Depth, ft:
7.5
7.0
f. TSS Removal Efficiency:
90%
90%
Permanent Pool Elev., FMSL:
24.5
22.5
h. Perm. Pool Surface Area, ft2:
47,621
40,700
i. Permitted Storage Volume, ft3:
324,753
167,008
. Temporary Storage Elev., FMSL:
30.1
26.0
k. Pre-dev. 1- r, 24-hr Discharge Rate, cfs:
3.08
3.94
I. Controlling Orifice , (V Inches:
5.0
4.0
m. Orifice Flow Rate, cfs:
0.90
0.45
n. Permitted Foreba Volume, ft3:
72,982
60,882
o. Max. Fountain HP:
1
1
p. Receiving Stream/River Basin
Courthouse Bay / White Oak
q. Stream Index Number
19-36
r. Classification of Water Body
SA; HQW
13. The design storm volume discharged from the wet detention pond must be directed to a
secondary BMP in series with the wet detention pond. The secondary BMPs provided to treat
the discharge from each wet detention pond are infiltration basins, and the following design
criteria have been provided in the secondary BMP and must be maintained at design
condition:
Design Criteria
DA1
DA2
a. Design Flow Rate, cfs:
0.9
0.45
b. Basin Depth, ft:
1.5
1.0
c. Bottom Elevation, FMSL:
23.5
22.0
d. Bottom Surface Area, ft2:
5,148
6,485
e. Bypass Weir Elevation, FMSL:
25.0
23.0
f. Permitted Storage Volume, ft3:
9,768
7,307
g. Type of Soil:
Leon
Wando
In. Expected Infiltration Rate, in/hr:
12.0
8.85
i. Seasonal High Water Table, FMSL:
21.5
19.98
Time to Drawdown, hours,
4.18
4.17
11. 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. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to
operation of this permitted facility, the permittee shall cause a certification from an appropriate
designer for the system installed to be submitted, certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications must
be noted on the Certification. A modification may be required for those deviations.
Page 3 of 6
State Stormwater Management Systems
Permit No. SW8 130112
4. If the permanent pool volume is greater than 30,000 cubic feet, 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 either pond 1 or pond 2 is 1 horsepower.
5. 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.
6. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DEMLR. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
7. 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.
8. 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.
9. Clear access to the stormwater facilities for inspection and maintenance shall be maintained
via appropriately recorded easements.
Page 4 of 6
State Stormwater Management Systems
Permit No. SW8 130112
10, 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.
11. 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.
12. Prior to transfer of the permit, a file review and site inspection will be conducted by Division
personnel to ensure the permit conditions have been met and that the project and the on -site
stormwater system complies with the permit conditions. Any items not in compliance must be
repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities
performed to date may be requested.
III. GENERAL CONDITIONS
Any individual or entity found to be in noncompliance with the provisions of a stormwater
management permit or the requirements of the stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21.
The issuance of this permit does not preclude the permittee from complying with and obtaining
any other permits or approvals that are required for this development to take place, as
required by any statutes, rules, regulations, or ordinances, which may be imposed by any
other Local, State or Federal government agency having jurisdiction. Any activities undertaken
at this site that cause a water quality violation or undertaken prior to receipt of the necessary
permits or approvals to do so are considered violations of NCGS 143-215.1, and subject to
enforcement procedures pursuant to NCGS 143-215.6.
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 5 of 6
State Stormwater Management Systems
Permit No. SW8 130112
Permit Transfer: This permit is not transferable to any person or entity except after notice to
and approval by the Director. The permittee shall submit a completed and signed "Permit
Transfer Application Form" (available on the Division website) accompanied by the required
fee and supporting documentation as listed on the form, to the Division at least 60 days prior
to any one or more of the following events:
a. The sale or conveyance of the project area in whole or in part, except in the case of an
individual lot sale that is made subject to the recorded deed restrictions and protective
covenants;
b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or
NCGS 57D-6-07 and 08;
C. Bankruptcy;
d. Foreclosure, subject to the requirements of Session Law 2013-121,
Current Permittee Name or Address Changes: The permittee shall submit a completed
"Permit Information Update Application Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project;
C. A mailing address change of the permittee;
6. The permittee is responsible for compliance with all terms and conditions of this permit until
the Division approves the transfer request. Neither the sale of the project, in whole or in part,
nor the conveyance of common area to a third party constitutes an approved transfer of the
permit.
7. The permittee grants Division Staff permission to enter the property during normal business
hours to inspect all components of the permitted project.
8. The permit issued shall continue in force and effect until the permittee files a request with the
Division for a permit modification, transfer, renewal, or rescission, however, these actions do
not stay any permit conditions.
9. Approved plans, application documents, supplements, calculations, operation and
maintenance agreement, and specifications for this project are incorporated by reference and
are enforceable parts of the permit. A copy of this permit, application, supplements, operation
and maintenance agreement, and approved plans and specifications shall be maintained on
file by the permittee.
10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater
system must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
11. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the
laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al.
12. A permit renewal request must be submitted at least 180 days prior to the expiration date of
this permit. The renewal request must include the appropriate application, documentation and
the processing fee as outlined in Title 15A NCAC 02H.1045(3).
Permit renewed, updated and reissued this the 30th day of July 2021.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C� 20
.�7,; rian�6irect r
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 6 of 6
Attachment C - Permitting History
P1253 2D Combat Engineer Battalion Ops Maintenance Complex
Permit No. SW8 130112
'Approval
Date '
Permit
Action
BIMS
Version
Description of the Changes
3/6/2013
Original
Approval
1.0
7/30/2021
Renewal
2.0
Permit Number:�—
(to be prow ided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
does ® does not incorporate pretreatment other than a foreu yI .AN 2 3 2013 }
Important maintenance procedures: BY'
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate the problerru.
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
swale
The pipe is clogged.
Unclog the pipe. Dispose of the
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
a depth greater than the
Search for the source of 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.
JAN232013 ?)
Form SW40I-Wet Detention Basin O&M-Rev.4 Page 2 of 4
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. (if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 12.5 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 12.5 feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
12 Pe manen
Volume
I I ft Min.
Sediment
Storage
FOREBAY
Form SW401-Wet Detention Basin O&M-Rev.4
Permanent Pool Elevation 24.5
Pool
Sediment Removal Elevation 12
---------------------
Bottom Elevation
MAIN POND
FEB 15 2013
By:_---------
Page 3 of 4
1-ft
Storage
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P1253 2D COMBAT ENGINEER BATTALION OPSIMAINTENANCE
BMP drainage area number:
Print name:NEAL PAUL
Tltle:DEPUTY PUBLIC WORKS DIRECTOR
Address:1005 MICHAEL ROAD CAMP LEJEUNE NC 28542
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I,�9 ,k�'J� ) 1UV,I I , a Notary Public for the State of
of WA`bJU ''U , do hereby certify that
Q �U� personally appeared before me this LO
day of\ , 201"), and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
KELLEY Vkti,40E', )EVERINGI
NcrrpRt ��L,Gt.,0
Of4SLU�v GCUNTY
STaYa ;10, K(;Ofk G a.ROLINA
SEAL
My commission
rJ CAN 2 3 2013
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4
Permit Number: 's14_�'
(to be provi d by DVVQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the.
flushing of sediment through the emergency drain should be minimiired to0the 1 ,
maximum extent practical. BAN 2 3 200
— Once a year, a dam safety, expert should inspect the embankment. t�
After the wet detention pond is established, it should be inspected once a morith and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately sik inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page I of 4
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
a depth greater than the
original design depth for
sediment storage.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
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
a depth greater than the
original design sediment
Search for the source of the
sediment and remedy the problem if
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
50% of the area.
Consult a professional to remove
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.
JAN 2 3 2013
Form SW40I-Wet Detention Basin O&M-Rev.4 j3'f:_------Page 2 of 4
Permit Number:
(to be provided by, DWQ)
Drainage Area Number:
Sediment Removal EX. 12 1 Pe maven Pool
Elevatio
Form SW401-Wet Detention Basin O&M-Rev.4
_______ __ Volume
Bottom
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. (if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
damage have occurred at the
Contact the local NC Division of
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 10.5 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 10.5 feet in the forebay, the sediment
shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 22.5
Sediment Removal Elevationl2 tVolume
I I -ft Min.
Sediment
Storage
FOREBAY
Bottom Elevation I I I I -ft n
Sedtmet
Storage
MAIN POND
1AN232013
Page 3 of 4
Permit Number:
(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. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P1253 2D COMBAT ENGINEER BATTALION OPS/MAINTENANCE
BMP drainage area number: POND 2
Print name:NEAL PAUL
Title:DEPUTY PUBLIC WORKS DIRECTOR
Address:1005 MICHAEL ROAD CAMP LEJEUNE NC 28542
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
0Un Wt6l�hkounty of (AM) 161 /V , do hereby certify that
personally appeared before me this 10
day of 3cmvm8k, Lv l J, and acknowledge the due execution of the
forgoing wet detention basin maintenance reyu
seal, /__' _�\^
NOTARY PUBLIC
ONGLOW COUNTY
STAfE Ole NORTH CAROLINA
SEAL
My commission expires r rV
ECEU E
JAN 2 3 2013
a
BY•
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4
:.LViik �1P(i;:
.eta !'i �.i �'�`.�)'�,r:~'. ,',lry°•,
a
Permit Number:�—
(to be provided by DWQ)
Drainage Area Number:__
Infiltration 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.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance 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 perimeter of the
infiltration basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe or
swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
rJCAN
cEuvE 2 3 2013
Form SW401-Infiltration Basin O&M-Rev.3 Page 1 of 3
BMP
Sediment has accumulated
and reduced the depth to 75%
of the original design depth.
Erosion has occurred or
riprap is displaced.
are present.
The main treatment area A visible layer of sediment
has accumulated.
The outlet
receiving water
Water is standing more than
5 days after a storm event.
Weeds and noxious plants are
growing in the main
treatment area.
Shrubs or trees have started
to grow on the embankment.
An annual inspection by an
appropriate professional
shows that the embankment
needs repair.
Clogging has occurred
The outlet device is damaged
Erosion or other signs of
damage have occurred at the
outlet.
Bli
Form SW401-Infiltration Basin O&M-Rev.3
How I will remediate the problem:
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
Replace the top few inches of filter
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Remove the plants by hand or by
wiping them with pesticide (do not
Remove shrubs or trees
needed repairs.
Clean out the outlet device. Dispos
of the sediment off -site.
Repair or replace the outlet device.
Contact the NC Division of Water
Quality 401 Oversight Unit at 919-
JAN 7 3 2013
Page 2 of 3
Permit
(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:P1253 2D COMBAT ENGINEER BATTALION OPS/MAINTENANCE
BMP drainage area number: INFILTRATION BASIN I
Print name:NEAL PAUL
Title:DEPUTY PUBLIC WORKS DIRECTOR
Address:1005 MICHAEL ROAD CAMP LEJEUNE NC 28542
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
ml V as Notary Public for the State of
of " )
^' do hereby certify that
personally appeared before me this
day of JGv\, _and acknowledge the due execution of the
forgoing infiltration basin maintenance requiremets. Witness my,�and.ana official
.LEY VANDECOEVERIN
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires Jk
rJ
�CEOVE
AN 2 3 2013
Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3
,j
r
Permit Number:.���/✓y�-��/'��
(to be provided b DWQ)
Drainage Area Number:
Infiltration 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.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin.will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.3 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 perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
infiltration 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.
The inlet device: pipe or
Swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Form SW401-Infiltration Basin O&M-Rev.3
r
eL.r E S V E
JAN 2 3 200 1
Page I of 3
BMP element:
Potentialproblem:
How I will remediate theproblem:
The forebay
Sediment has accumulated
and reduced the depth to 75%
Search for the source of the
sediment and remedy the problem if
of the original design depth.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
s r a i n.
The main treatment area
A visible layer of sediment
has accumulated.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Water is standing more than
Replace the top few inches of filter
5 days after a storm event.
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Weeds and noxious plants are
Remove the plants by hand or by
growing in the main
wiping them with pesticide (do not
treatment area.
spray).
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment.
immediately.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs re air.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
rJ
OFIVFAN 2 3 2013
Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P1253 2D COMBAT ENGINEER BATTALION OPS/MAINTENANCE
BMP drainage area number: INFILTRATION BASIN 2
Print name:NEAL PAUL
Tltle:DEPUTY PUBLIC WORKS DIRECTOR
Address:1005 MICHAEL ROAD CAMP LEJEUNE NC, 28542
Note: The legally res onsible party should not be a homeowners association unless more than 50% of
the to s ve een sold and a resident of the subdivision has been named the president.
[4 byl
, a Notary Public for the State of
County of do hereby certify that
�V 1 personally appeared before me this
day ofJ \410 a ` / 11� , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. ) /itness my hand and official seal,
KELLEY VANDECOEVERI✓ )k?
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
JAN 2 3 2013
SEAL
My commission expires
Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3
1-- 1 J
111403 NOJIACI f.
AWJOSAt4TPOV
F. I b � -, 'it
r,
Permit Number:
(m 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.
,:ECEIVE
FEB 9 4 200
Form SWU401-1-evel Spreader, Filter Strip, Restored Riparian Buffer O&M -Rev., Page l of 3
BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise dama ed.
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 aground 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.
1 401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3
ECEIVE
FEB 942013
Byl Page 2 of 3
Permit Number:
(Io 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. 1 agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:P1253 2D COMBAT ENGINEER BATTALION
�r.(t
BMP drainage area number:LS-VFS I L5;—VF,5!
Print name:NEALPAUL
Tltle:DEPUTY PUBLIC WORKS DIRECTOR
Address:1005 MICHAEL ROAD, CAMP LEJEUNE NC. 28542
Note: The legally responsible party should not be a homeowners association unless more than 50%of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of i<<�jlf-� do hereby certify that
personally appeared before me this
day of, and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
LMI
ETTEctyroina
SEAL
My commission expires
FEB 14 2M3
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3_ of 3
UEMLH USE UNLY
i Date Re eived
Fee Paid
Permit Number
57s, ' S—'
ollC�2
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8 130112
2. Project name: P-1253 2D Combat Engineer Battalion Ops/Maintenance Complex HIQh Density
Commerical Wet Detention Pond Proiect (Class SA Waters)
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://deg.nc.gov/about/divisions/e
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https://deg.nc.goy/about/divisions/energy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: MCB Camp Leieune
2. Signing Official's Name: Neal Paul
3. Signing Official's Title: Deputy Public Works Division
4. Mailing Address: MCB Camp Le'eune 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
JUL 2 7 2021
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 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
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
HEB 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
HEB 4. O&M Agreements, Please select one:
® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
HEB 5. Designer Certifications, Please select one:
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.gov/online services/search/by title/ Business Registration
77 \ 1 gyp_
JUL 2 7 2021
tormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
.i
D. PERMITTEEE'�'S11 A
CERTIFICATION
I, JZo W� . 1,6_ dc►, the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, ownership. �Yr�b ation provided on this permit renewal application is, to the best of my
knowledge, rrec ofcompl te.
Signature: ( Date: l� 2
NOTARIZATION:
that MOW
_
this the
exe�ytioAldf tagaforgoir
NER
Y
day of Iam
g instrument. Witness my hand -and official seal,
a Notary Public for the State of
, do hereby certify
personally appeared before me
, and acknowledge the due'
��•�d mr a:M
JUL 2 7 2021
BY:
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018
'hall,
...........
1; a
Permit No. /v^' w lb)13�
(to be provided by DWO)
WDENR
o "
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.
I. PROJECT INFORMATION -- „/ .,...- . •,
Project name
P1253 2D COMBAT ENGINEER BATTALION OPS/MAINTENANCE COMPLEX
Contact person
MATTHEW HALEY, PE
Phone number
910-383.1044
Date
2/222013
Drainage area number
POND 1
Ill., DESIGN! INFORMATION
Site Characteristics
Drainage area
1,565,484 fe
Impervious area, post -development
1,164,859 ft'
%impervious
74.41 %
Design rainfall depth
1.5 in
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the lyr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHW( elevation (approx. at the perm. pool elevation)
Top of 10h vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
140,831 ft'
36,225 ft'
359,998 h'
323,773 ft'
324,753 ft'
Y (Y or N)
3.8 in
50.00 (unitless)
86.00 (unitless)
2.50in/hr OK
3.08 h'/sec
0.00 h3/9ec
-3.08 n3lcpc
30.10 fmsl
24.50 fmsl
21.50 fmsl
25.00 fmsl
24.00 fmsl Data not needed for calculation option p1, but OK if provided.
12.00 fmsl
11.00 fmsl Data not needed for calculation option N1, but OK if provided.
1.00 h
Y (Y or N) C ECEIV C
30.1 fmsl OK 6J C
FEB 2 8 2013
BY;
Form SW401-wet Detention Basin-Rev.9-4/la/12 Parts I. 611. Design Summary, Page 1 of 2
Permit
(to be provided by DWD)
11.'DESIGN INFORMATION
Surface Areas
Area, temporary pool 66,636 ft'
Area REQUIRED, permanent pool
39,607 ft
SAIDA ratio
2.53 (unitless)
Area PROVIDED; permanent pool, A,,,n ,,,,
47,621 fe OK
Area, bottom of 1 Oft vegetated shelf, A,,.,
42,985 ft
Area, sediment cleanout top elevation (bottom of pond), Av„ ,,,,
8,719 it4� 9
Volumes
Volume, temporary pool
324,753 ft' OK
Volume, permanent pool, V,,,, ,,,i
357,985 tt'
Volume, forebay (sum of forebays if more than one forebay)
72,982 ft'
Forebay % of permanent pool volume
20.4% % OK
SAIDA Table Data
Design TSS removal
90
Coastal SAIDA Table Used?
Y (Y or N)
MountaindPiedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
2.53 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Y (Y or N)
Volume, permanent pool, V„v j
357,985 ft'
Area provided, permanent pool, A,,,,.,
47,621 ft`
Average depth calculated
7.52 ft OK
Average depth used in SAIDA, d,,, (Round to nearest 0.5ft)
7.5 ft OK
Calculation option 2 used? (See Figure 10-2b)
N (Y or N)
Area provided, permanent pool, A,,.
47,621 ft`
Area, bottom of 1 Oft vegetated shelf, A,,, ,,,,
42,985 tt`
Area, sediment cleanout, top elevation (bottom of pond), A,,,.
8,719 ft'
'Depth' (distance h/w bottom of 1Oft shelf and top of sediment)
12.00 it
Average depth calculated
ft
Average depth used in SAIDA, d,,, (Round to down to nearest 0.5ft)
ft
Drawdown Calculations
Drawdown through orifice?
Y (Y or N)
Diameter of orifice (if circular)
5.00 in
Area of orifice (ibnoncircular)
in'
Coefficient of discharge (Cn)
0.60 (unitless)
Driving head (H,)
1.87 ft
Drawdown through weir?
N (Y or N)
Weir type
(unitless)
Coefficient of discharge (C„)
(unitless)
Length of weir (L)
it
Driving head (H)
it
Pre -development 1-yr, 24-hr peak flow
3.08 11
Post -development 1-yr, 24-hr peak flow
0.DO ft'/sec
Storage volume discharge rate (through discharge orifice or weir)
0.90 ft'/sec
Storage volume drawdown time
4.18 days
Additional Information
Vegetated side slopes
3 :1
Vegetated shelf slope
10 :1
Vegetated shelf width
10.0 ft
Length of flowpalh to width ratio
3 :1
Length to width ratio
3.0 :1
Trash rack for overflow & orifice?
Y (Y or N)
Freeboard provided
2.0 ft
Vegetated filter provided?
N (Y or N)
Recorded drainage easement provided?
N (Y or N)
Capures all runoff at ultimate build -out?
Y (Y or N)
Drain mechanism for maintenance or emergencies is:
PORTABLE PUMP
OK, draws down in 2-5 days. µsA 1ECEIVC
OK R FEB 2 8 2013
OK tIJ
OK
OK BY.
OK
OK
OK
OK
Insufficient. Recorded drainage easement required.
OK
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Pans 1, a 11. Design Summary, Page 2 of 2
(to be provided by DWO)
s
r
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.
Paget Plan
Initials Sheet No.
AeNVA_ C— 400
1. Plans (1" - 50' or larger) of the entire site showing:
-to C —44!&
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
C—
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions,
Forebay and main pond with hardened emergency spillway,
��
l�
- Basin cross-section,
for
FEB
8
- Vegetation specification planting shelf, and
15 2013
- Filter strip.
�K4 C—
3. Section view of the wet detention basin (1" = 20' or larger) showing:
Side slopes, 3:1 or lower,
Pretreatment and treatment areas, and
Inlet and outlet structures.
Wff fA— C- oo \ 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
MevA_ cALt. S 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay,
to verify volume provided.
6WIA C-0 Q 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
1t�c �D 7. The supporting calculations.
WT} t N"visev;0 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
—.AIA— 9. A copy of the deed restrictions (if required).
wirTA v i 1w 10, A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Part III. Required Items Checklist, Page 1 of 1
Permit No. 5 `4 0 15Dti g-
Ito be provided by DWOf
®��
020E W A7F9OG
r
NCDENR
�
t
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 III) must be printed, filled out and submitted along with all of the required information.
L PROJECT. INFORMATION
ti -. .,:` ., . ,. 11,,.,._
Project name
P12532D COMBAT ENGINEER BATTALION OPS/MAINTENANCE COMPLEX
Contact person
MATTHEW HALEY, PE
Phone number
910-383-1044
Date
2222013
Drainage area number
POND 2
111. DDESIGN INFORMATION
Site Characteristics
Drainage area
667,956 fe
Impervious area, post -development
585,393 fe
%impervious
87.64
Design rainfall depth
1.5 in
Storage Volume: Noni Waters
Minimum volume required
113
Volume provided
f13
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the lyr 24m storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
70,031 fY3
13,346 ff3
178,814 ft'
165,468 It"
167,008 it'
Y (Y or N)
3.8 in
50.00 (unitless)
90.00 (unitless)
2.50 Whir OK
3.94 ff3/sec
0.00 ff3/sec
-3.94 ff3/sec
26.00 fmsl
22.50 fmsl
19.98 fmsl
23.00 fmsl
22.00 fmsl
12.00 fmsl
11.00 fmsl
1.00 It
Y (Y or N) ECCO/ 'IE
26.0 fmsl OK C 1C
FEB 2 8 2013
BY:
Form SW401-Wet Detention Basin-Rev.9-4/18/12 Parts 1.811. Design Summary, Page 1 of 2
Permit
ito be provided by DWD)
II. DESIGN INFORMATION
Surface Areas
Area, temporary pool 52,427 fe
Area REQUIRED, permanent pool
26,050 ff
SAIDA ratio
3.90 (unitless)
Area PROVIDED, permanent pool, A,._.
40,700 ft` OK
Area, bottom of 10ft vegetated shelf, Am,",
37,895 e
Area, sediment cleanout, top elevation (bottom of pond), Awjy ,,
9,228 ft°ez— '>
Volumes
Volume, temporary pool
167,008 ft3 OK
Volume, permanent pool, V...
291,926 ft"
Volume, forebay (sum of forebays if more than one forebay)
60,882 rya
Forebay %of permanent pool volume -
20.9% % OK
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
Y (Y or N)
Mountain/Piedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
3.90 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
(Y or N)
Volume, permanent pool, V...
291,926 W
Area provided, permanent pool, A,,, p,
40,700 fe
Average depth calculated
7.17 If OK
Average depth used in SAIDA, d,,, (Round to nearest 0.5ft)
7.0 If OK
Calculation option 2 used? (See Figure 10.2b)
N (Y or N)
Area provided, permanent pool, A,._.,
40,700 tt`
Area, bottom of 1 Oft vegetated shelf, A,,_,,,,
37,895 tt`
Area, sediment cleanout, lop elevation (bottom of pond), Am, ,ana
9,228 f?
'Depth" (distance bAv bottom of 1 Oft shelf and top of sediment)
10.00 If
Average depth calculated
It
Average depth used in SAIDA, it,,, (Round to down to nearest 0.5fq
ft
Drawdown Calculations
Drawdown through orifice?
Y
(Y or N)
Diameter of orifice (if circular)
4.00 in
Area of orifice (if -non -circular)
in
Coefficient of discharge (Co)
0.60 (unitless)
Driving head (Ho)
1.17 ft
Drawdown through weir?
N
(Y or N)
Weir type
(unitless)
Coefficient of discharge (C.„)
(unitless)
Length of weir (L)
ft
Driving head (H)
ft
Pre -development 1-yr, 24-hr peak flow
3.94 ft3lsec
Post -development 1-yr, 24-hr peak flow
0.00 ft3lsec
Storage volume discharge rate (through discharge orifice or weir)
0.45 ft3lsec
OK, draws down in 2-5 days.
CFIVE
Storage volume drawdown time
4.17days
Additional Information�1013
rFEBU L
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 If
OK
BY.
Length of flowpath to width ratio
3 :1
OK
Length to width ratio
3.0:1
OK
Trash rack for overflow & orifice?
Y
(Y or N)
OK
Freeboard provided
4.0 ft
OK
Vegetated filter provided?
N
(Y or N)
OK
Recorded drainage easement provided?
N
(Y or N)
Insufficient. Recorded drainage easement required.
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Drain mechanism for maintenance or emergencies is:
PORTABLE PUMP
Form SW401-Wet Detention Basin-Rev.9-4118112 Pans I. & II. Design Summary, Page 2 of 2
Permit
(to be provided by DWQ)
III VtRE0UIBED ITEMSjCHEGKLIST �
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials
Sheet No.
C-400
1. Plans (1" - 50' or larger) of the entire site showing:
tv G—k17.
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
Ihfs}
c7424-
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
Outlet structure with trash rack or similar,
Maintenance access,
Permanent pool dimensions, t�
Forebay and main pond with hardened emergency spillway,
Basin cross-section,
Vegetation specification for planting shelf, and 1AN 2 3 2013
Filter strip.
K74A
C-424
3. Section view of the wet detention basin (1" = 20' or larger) showing: 3'!:
- Side slopes, 3:1 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
VVT*A
C_Do 1
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
VVII CAit-d-S 5. A table of elevations, areas, incremental volumes 8 accumulated volumes for overall pond and for forebay,
to verify volume provided.
KF C—oo 1 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
7. The supporting calculations.
1 8. A copy of the signed and notarized operation and maintenance (08M) agreement.
Q /A 9. A copy of the deed restrictions (if required).
IM4 1 P%Wti 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin-Rev.9.4/18/12 Part III. Required Items Checklist, Page 1 of 1
Permit No. Jw 0 XJ'A 130 0 a
(to be provided by DWO)
®�AA STORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
Matthew
II:':DESIGN'INFORMATION
Site Characteristics
Drainage area 1,565,484.00 h'
Impervious area 1,164,859.00 .nz
Percent impervious 74.41 %
Design rainfall depth 1.50 in
Peak Flow Calculations
1-yr, 24-hr rainfall depth
3.80
in
1-yr, 24-hr intensity
-2.50
in/hr
Pre -development 1-yr, 24-hrdischarge
3.08 -
ff'/sec
Post -development l-yr, 24-hrdischarge
0.00
h'/sec
Pre/Post 1-yr, 24-hr peak flow control
-3.08
h'/sec
Storage Volume: Non -SA Waters
Minimum design volume required
Its
Design volume provided
h'
Storage Volume: SA Waters
1.5" runoff volume
140831.00
ft'
Pre -development 1-yr, 24-hr runoff volume
36,225.00
h'
Post -development 1-yr, 24-hr runoff volume
359,998.00
ft'
Minimum required volume
323773.00
ft'
Volume provided
9,768.00
ft'
Soils Report Summary
Soil type
LEON
Infiltration rate
12.00
in/hr
SHWT elevation
21-.50
fmsl
Basin Design Parameters
Drawdown time
4.18
days
Basin side slopes
5.00
:1
Basin bottom elevation
- 23.50
fmsl
Storage elevation
25.00
fmsl
Storage Surface Area
7,915.00
fe
Top elevation
25.00
fmsl
Basin Bottom Dimensions
Basin length
100.00
ft
Basin width
80.00
It
Bottom Surface Area
5,148.00
ft'
q 1l2pf WATFgOf
.+
I I rrn 11f
D 15 2013
BY. —
Need to provide additional volume
NacE: A�ot-�toeSP�l. Jowtit� as
PP-�toEb tr,I FbntD�.l
OK
OK
OK
Form SW401.mfiltration Basin-Rev.5 11 Ap2011 Parts I. & II. Design Summary, Page 1 of 2
Permit No.
(to be provided by DWO)
Additional Information
Maximum runoff to each inlet to the basin?
ac-in
'Length of vegetative filter for overflow
100.00
ft
OK
Distance to structure
>15
It
OK
Distance from surface waters
>50
It
OK
Distance from water supply well(s)
>100
It
OK
Separation from impervious soil layer
>2
It
OK
Naturally occuring soil above shwl
2.00
It
OK
Bottom covered with 4-in of clean sand?
Y
(Y or N)
OK
Proposed drainage easement provided?
N
(Y or N)
Need a recorded drainage easement
Capures all runoff at ultimate build -out?
Y
'(Y or N)
OK
Bypass provided for larger storms?
Y
(Y or N)
OK
Pretreatment device provided
Wet Pond
15 '
. 'r
• II
y+!
Form SW401-Infiltration Basim Bevs 11Ap2011 Parts 1. & 11. Design Summary, Page 2 of 2
Permit
(to be provided by DWO)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials
Sheet No.
C— 4ao
1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out.
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROVE,
Overflow device, and
Boundaries of drainage easement.
joriirliA_
C-47-3P
2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing:
Bypass structure,
Maintenance access,
Basin bottom dimensions,
Basin cross-section with benchmark for sediment cleanout,
Flow distribution detail for inflow,
Vegetated filter, and
Pretreatment device.
PM�4
C— 42-�D
3. Section view of the infiltration basin (1" = 20' or larger) showing:
Pretreatment and treatment areas, and
Inlet and outlet structures.
Vv*k
c LC
4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
\e�fCCeabqg!>
5. 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.
C Clim 1 5. A construction sequence that shows how the infiltration basin will be protected from sediment until the
entire drainage area is stabilized.
w7o V tR�CWlq*D 7. The supporting calculations.
WCt ee 3'> 8. A copy of the signed and notarized operation and maintenance (0&M) agree ent.
r� 9. A copy of the deed restrictions (if required). E UVE
FEB 15 2013
BY:
Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1
Permit
(to be provided by DWO)
/� 020E W ATFq,
STORMWATER MANAGEMENT PERMIT APPLICATION FORM o�
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
I::IPRGJECTINFORMATION
Project Name
P12532D Combat Engineer Battalion OpWaintenance Complex
Contact Person
Matthew Haley, PE
Phone Number
910-383-1044
Date
2111/2013
Drainage Area Number
INFILTRATION BASIN 2
I1."'iDESIGN INFORMATION
Site Characteristics
Drainage area
667,956.00
ffz
Impervious area
585,393.00
fe
Percent impervious
87.64
Design rainfall depth
1.50
in
g� �+�{- y
E 0 E
Peak Flow Calculations
—C 1N/
1 -yr, 24-hr rainfall depth
3.80
in
1-yr, 24-hr intensity
2.50
in/hr
FEB 15 2013
Pre -development 1-yr, 24-hrdischarge
3.94
ft'/sec
Post -development 1-yr, 24-hr discharge
0.00
ft'/sec
BY'
Pre/Post 1-yr, 24-hr peak flow control
-3.94
ft'/sec
Storage Volume: Non -SA Waters
Minimum design volume required
It'
Design volume provided
ft'
Storage Volume: SA Waters
1.5" runoff volume
70031.00
it'
Pre -development 1-yr, 24-hr runoff volume
15,456.00
it'
Post -development 1-yr, 24-hr runoff volume
178814.00
it'
Minimum required volume
163358.00
it'
Volume provided
7.307.00
ft'
Need to provide additional volume
B�IOT�' ApD1TTot.1A;A— VOWWE L�S
Soils Report Summary
Soil type
WANDO
P�111� \tJ C�OIvI D (r
Infiltration rate
8.85
in@r
SHWT elevation
19.98
fmsl
Basin Design Parameters
Drawdown time
4.17
days
OK
Basin side slopes
5.00
:1
OK
Basin bottom elevation
22.00
fmsl
OK
Storage elevation
23.00
fmsl
Storage Surface Area
8,128.00
f?
Top elevation
23.00
fmsl
Basin Bottom Dimensions
Basin length
90.00
it
Basin width
70.00
it
Bottom Surface Area
6,485.00
it'
Form SW401 Infiltration Basin-Rev.5 11Ap2011 Parts 1.811. Design Summary, Page 1 of 2
Permit No.
(to be provided by OWO)
Additional Information
Maximum runoff to each inlet to the basin?
ac-in
Length of-vegetat(eefilterforoverflow
100.00
it
OK
Distance to structure
>15
ft
OK
Distance from surface waters
>50
it
OK
Distance from watersupplywell(s)
- ->100
it
OK
Separation from impervious soil layer
>2
it
OK
Naturally occuring soil above shwl
2.00
it
OK
Bottom covered with 4-in of clean sand?
Y
(Y or N)
OK
Proposed drainage easement provided?
N
(Y or N)
Need a recorded drainage easement
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Bypass provided for larger storms?
Y
(Y or N)
OK
Pretreatment device provided
Wet Pond
ECEWC
FEB 15 2013
Form SW401 -I nfiltration Basin-Rov.5 11 Ap2011 Pans I. & 11. Design Summary, Page 2 of 2
Permit
(to be provided by DWO)
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.
F _ C- �®
1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement.
C-4-2-4-
2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing:
Bypass structure,
Maintenance access,
Basin bottom dimensions,
Basin cross-section with benchmark for sediment cleanout,
Flow distribution detail for inflow,
Vegetated filter, and
Pretreatment device.
°[y \ C1 C-- 424- 3. Section view of the infiltration basin (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
WtrA CALUS 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
5. 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.
6. A construction sequence that shows how the infiltration basin will be protected from sediment until the
entire drainage area is stabilized.
tATIA tyltasad� 7. The supporting calculations.
8. A copy of the signed and notarized operation and maintenance (0&M) � °f � agreent. �pp
® -9. A copy of the deed restrictions (if required). ECEUE
fl FEB 15 2013
Form SW401-Infiltration Basin-Rev.4 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1
N"A'
NCDF�R
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
. This form must be completely filled out, printed, initialed, and submitted.
Phone number 910-383-1044
Date February 11, 2013
Drainage area number LS-VFS 1
The purpose of the LS-VFS
Stormwater enters LS-VFS from
Type of VFS
Explanation of any 'Other' responses above
If Stormwater Enters the LS•VFS from the Drainage Area
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 storm
Design storm
Maximum amount of flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 'Other' responses above
If Stormwater Enters the LS-VFS from a BMP
Type of BMP
Peak discharge from the BMP during the design storm
Peak discharge from the BMP during the 10-year storm
Maximum capacity of a 100-foot long LS-VFS
Peak flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any *Other' responses above
from Wet Pond
Wooded stormwater setback (slope 4 5%)
f?
Do not complete this section of the form.
ft,
Do not complete this section of the form.
%
Do not complete this section of the form.
Do not complete this section of the form.
cfs
Do not complete this section of the form.
min
Do not complete this section of the form.
in/hr
Do not complete this section of the form.
cfs
Do not complete this section of the form.
Pick one:
cfs Do not complete this section of the torn.
(Y or N) Do not complete this section of the form.
Wet detention pond
0.9 cfs — a1sUiACG'F'J -PV f,NT-, 40EA -4 t
70.2 cfs - 14cwnes±3C>A CFS€-rtn. 4;eXLLW0t`-�
2 cfs
391 'cfs— F=Law—Nrmu&%1 p�Fr.o�.-1 WTta�T STRv LtII�E
CPtl.cUth'C\o NS 1�=iV1oN�RE'Cf11�c�ro t�toN—�?C1�lV�
\FELcx—i f-v/i
1E-f;V-1VE
FEB 15 2013
f?v:
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 1 of 3
LS-VFS Design
Forebay surface area
NIA
sq ft
No forebay is required.
Depth of forebay at stormwater entry point
36
in
Depth of forebay at stormwater exit point
12
in
Depth is appropriate.
Feet of level lip needed per cfs
50
fvcfs
Computed minimum length of the level lip needed
1955
It
TheThe flow for a 100-foot level spreader.
Length of level lip provided
100
It
Level spreader is too shod to handle the flow.
Width of VFS
100
ft
Elevation at downslope base of level lip
20.00
fmsl
-fmsl
I
SAT\ot�1S TJ>rMGniSTTLfFi'II�K
Elevation at the end of the VFS that is farthest from the LS
17.00
Slope (from level lip to the end of the VFS)
3.00
%
Are any draws present in the VFS?
N
(Y or N)
OH
Is there a collector swale at the end of the VFS?
N
(Y or N)
Bypass System Design (if applicable)
Is a bypass system provided?
N (Y or N)
Is there an engineered flow splitting device?
(Y or N)
Dimensions of the channel (see diagram below):
M
It
B
It
W
If
y (flow depth for 10-year storm)
It
freeboard (during the 10-year storm)
it
Peak velocity in the channel during the 10-yr storm
ftlsec
Channel lining material
Pick one:
Does the bypass discharge through a wetland?
(Y or N)
Does the channel enter the stream at an angle?
(Y or N)
Explanation of any "Other' responses above
w
4 n a
j FEB 15 2013
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 2 of 3
III. REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
reVAlt in a r*uest for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been
met, attach justification.
Requried Item:
1. Plans (V - 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.
2. Plan details (V = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topic, lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader (1' = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from
sediment until the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations.
B. A copy of the signed and notarized operation and maintenance (0&M) agreement.
Initials
Page or plan sheet number and any notes:
C-q'co —ro
C-4Z3
C — CA
t N ci
1 tJ' l_LJOt?)
FEB 15 2013
By:___�
Form SW401 - LS-VFS - 29June2012 - Rev.10 page 3 of 3
®*A
HCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT
This form must be completely filled out, printed, initialed, and submitted.
�o WAtF,
O g
I PROJECT,INFORMATION I
Project name P1253 2D Combat Engineering Battalion OpslMaintenance Complex
Contact name Matthew Haley, PE
Phone number 010-383-1044
Date February 11, 2013
Drainage area number IS-VFS 2
The purpose of the LS-VFS
Stormwater enters LS-VFS from
Type of VFS
Explanation of any 'Other" responses above
If Stormwater Enters the LS•VFS from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 inlhr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Design storm
Maximum amount of flow directed to the LS-VFS
Is a flow bypass system going to be used?
Explanation of any 'Other' responses above
If Stormwater Enters the LS-VFS from a BMP
Wooded stormwaler setback (slope <5%)
112 Do not complete this section of the form.
It' Do not complete this section of the form.
% Do not complete this section of the form.
Do not complete this section of the form.
cfs Do not complete this section of the form.
min Do not complete this section of the form.
Whr Do not complete this section of the form.
cfs Do not complete this section of the form.
Pick one:
cfs Do not complete this section of the form.
(Y or N) Do not complete this section of the form.
Type of BMP Wet detention pond
Peak discharge from the BMP during the design storm 0.45 cis — Dfsct?ASGetD 7c 1%41--, AW, A VF Z
Peak discharge from the BMP during the 10-year storm 23.26 cis —
Maximum capacity of a 100-toot long LS-VFS 2 cts
Peak flow directed to the LS-VFS 23.26 cis — T{,CA,� TµRov<!,q <WER-FLoN orJT ]a' vvpj, vPx
Is a flow bypass system going to be used? C N (Y or N)
Explanation of any "Other" responses above
- CL��wWCC\otilS tJ>•cMOn)SCFt'9'Th ^t �T+ �nl—���
P �oYl D Ci'J
FEB 15 2013
BY:
Form SW401 - LS-VFS - 29June2012 - Rev.10 �__ page 7 of 3
LS•VFS Design
Forebay surface area
NIA
sq it
No forebay is required.
Depth of forebay at stormwater entry point
36
in
Depth of forebay at stormwater exit point
12
in
Depth is appropriate.
Feet of level Ip needed per cis
50
fVcfs�
Computed minimum length of the level lip needed
Length of level lip provided
1163
100
It
it
The flow is/ s too high for a 100-foot level spreader.
Lev of spreader is no, short to handle the flow.
Width of VFS
100
it
Elevation at downslope base of level lip
22.00
fmsl
CAtir`vt�'r•-xonlS �EMe�S1KI)Tlr�j
Elevation at the end of the VFS that is farthest from the LS
20.00
fmsl
PAN'E�ZcSV V15, V Etoc'T'\ �
Slope (from level lip to the end of the VFS)
2.00
%
Are any draws present in the VFS?
N
(Y or N)
OK
Is there a collector swale at the end of the VFS?
N
(Y or N)
Bypass System Design (if applicable)
Is a bypass system provided?
N (Y or N)
Is there an engineered flow splitting device?
(Y or N)
Dimensions of the channel (see diagram below):
M
It
B
it
W
it
y (flow depth for 10-year storm)
it
freeboard (during the 10-year storm)
it
Peak velocity in the channel during the 10-yr storm
tVsec
Channel lining material
Pick one:
Does the bypass discharge through a wetland?
- (Y or N)
Does the channel enter the stream at an angle?
(Y or N)
Explanation of any 'Other' responses above
\V
rF
OEBilF/EI 1,
15 2013
BY:�
Form SW401 - LS-VFS - 29June2012 - Ptev.10 page 2 of 3
IIL REQUIRED ITEMS CHECKLIST
EDIT Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the
following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been
met, attach justification.
Requried Item: Initials
Page or plan sheet number and any notes:
1. Plans (V - 50' or larger) of the entire site showing: M1—
L_Q-o�-ro-�«
-Design at ultimate build -out,
- OH -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details (1' = 30' or larger) for the level spreader showing: IKT-k
C 4Z 4-
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader (V = 20' or larger) showing: V..q
c —4Z4-
- Underdrain system (if applicable),
-Level lip, -
- Upslope channel, and
- Downslope filter fabric.
4. Plan details of the flow splitting device and supporting calculations (if applicable).
5. A construction sequence that shows how the level spreader will be protected from '�.:1 �
C— Gd
sediment until the entire drainage area is stabilized.
6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing
that no draws are present.
7. The supporting calculations. kA fYl I 1
8. A copy of the signed and notarized operation and maintenance (08M) agreement. 1i I I NC w-_Affl)
Form SW401 - LS-VFS - 29June2012 - Rev. 10 page 3 of 3
State Stormwater Management Syystems
No.
P-1253 2D Combat Engineer Battalion Ops / Maintenance ComplexPermit SW8 1. 30112 W/J
Stormwater Permit No. SW8130112
Onslow, County P. I
Designer's Certification
I, nna,-rNev "A%_ ' , as a duly registered s%OIQA% GN&' in the
State of North Carolina, having been authorized to observe eriodic I y/ weekly/ full
time) the construction of the project,
r -%4L
(Project)
(Por4o t�
for Mcg GAnnP tJE3r=QW'c (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 specifications:
SEAL
Signature ,,,,,,,,,,,,,
Registration Number o3r7 8totOf'aN ss� `
Date 3�3ojtm _ Aso `_';r
ECEIVE
APR 01 2016
BY:_
o___ 0 ,.s n
State Stormwater Management Systems'
Permit No. SW8 130112
Certification Requirements: (. POk) vF C)
✓ 1. The drainage area to the system contains approximately the permitted
acreage.
✓ 2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
✓ 3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
✓ 4. All roof drains are located such that the runoff is directed into the system.
✓ 5. The outlet structure elevations are per the approved plan.
✓ 6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet structure.
✓ 8. All slopes above permanent pool are grassed with permanent vegetation.
✓ 9. Vegetated slopes above permanent pool are no steeper than 3:1.
✓ 10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
✓ 11. The permitted amounts of surface area and/or volume have been
provided.
✓ 12. Required drawdown devices are correctly sized and located per the
approved plans.
✓ 13.. All required design depths are provided.
✓ 14. All required parts of the system are provided, such as a vegetated shelf, a
forebay; a vegetated filter, level spreader and a secondary BMP.
15. The required system dimensions are provided per the approved plans.
N 16. All components of the stormwater BMP are located in either recorded
common areas, or recorded easements.
cc: NCDENR-DWQ Regional Office
O epeeti9n
MCg CokM? u*EUM15 — FUFAAc- 1NOR1K4,
�ECEIVE
APR 01 2016
BY:_----
o...... n -9 n
State Stormwater Management Systems
Permit No. SW8 130112
P-1253 2D Combat Engineer Battalion Ops / Maintenance Complex.
Stormwater Permit No. SW8 130112
Onslow County
Designer's Certification
I, fAAT-rN tr1A,,,e`{ , as a duly registered ?(&Fe55tot&L. lef4&, in the
State of North Carolina, having been authorized to observe n ica weekly/ full
time) the construction of the project,
W y /
C PoNn VF z.)
for Mcm cAmp \reieuNg, (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 specifications:
iZY.
�J,�29�� SEAL
p`I`�' l
Signature .°'"�t� CAR
Registration Number a38to15 ,.�erss;,,•,i:,,=,'.
Date 3 (1,o LO = v
1
JECE,IVE
pp I APR 0 9 2016
i
o--- 0 -X n
ti
State Stormwater Management Systems'
Permit No. SW8 130112
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
✓ 2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
All the built -upon area associated with the project is graded such that the
runoff drains to the system.
✓ 4. All roof drains are located such that the runoff is directed into the system.
✓ 5. The outlet structure elevations are per the approved plan.
✓ 6. The outlet structure is located per the approved plans.
✓ 7. Trash rack is provided on the outlet structure.
✓ 8. All slopes above permanent pool are grassed with permanent vegetation.
✓ 9. Vegetated slopes above permanent pool are no steeper than 3:1.
✓ 10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
✓ 11. The permitted amounts of surface area and/or volume have been
provided.
✓ 12. Required drawdown devices are correctly sized and located per the
approved plans.
✓ 13.. All required design depths are provided.
✓ 14. All required parts of the system are provided, such as a vegetated shelf, a
forebay; a vegetated filter, level spreader and a secondary BMP.
✓ 15. The required system dimensions are provided per the approved plans.
Nf 4 16. All components of the stormwater BMP are located in either recorded
common areas, or recorded easements.
cc: NCDENR-DWQ Regional Office
$ACX& CAJA9 u�. tsE-1'�Suc. V4.3p4j�_
ECEIVE
APR 01 2016
BY:
4 State Stormwater Management Systems
Permit No. SWB 13t)112 j
P-1253 2D Combat Engineer Battalion Ops / Maintenance Complex. 12 J
Stormwater Permit No. SW8130112
Onslow County I
Designer's Certification
I, kv t rgEI S lt;om** ( , as a duly registered rie.. in the
State of North Carolina, having been authorized to observe nodica / weekly/ full
time) the construction of the project,
tom- 12S S 2n GoM6A-r rcNGr 4%e6`2- 6A-mA Uc PJ 09s j h6m &rr-, cnanPUEX
(Project)
CkNv -#t7
for Mct3 cA6AP t ejeur4l;r (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 specifications:
�J, SEAL
Signature �'
A •c
A P
Registration Number a3tac tS
Date 3 1 -4o 11 cm
E V E 1 Y
APR 0 9 2016
By:
State Stormwater Management Systems'
. Permit No. SW8 130112
Certification Requirements: ( =NN= V 1�
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
N [! 4. All roof drains are located such that the runoff is directed into the system.
N I A 5. The outlet structure elevations are per the approved plan.
N h 6. The outlet structure is located per the approved plans.
rt I A 7. Trash rack is provided on the outlet structure.
✓ 8. All slopes above permanent pool are grassed with permanent vegetation.
✓ 9. Vegetated slopes above permanent pool are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
✓ 11. The permitted amounts of surface area and/or volume have been
provided.
NI'A 12. Required drawdown devices are correctly sized and located per the
approved plans.
✓ 13.. All required design depths are provided.
✓ 14. All required parts of the system are provided, such as a vegetated shelf, a
forebay; a vegetated filter, level spreader and a secondary BMP.
✓ 15. The required system dimensions are provided per the approved plans.
NIA 16. All components of the stormwater BMP are located in either recorded
common areas, or recorded easements.
cc: NCDENR-DWQ Regional Office
N►cg CAM? te3e NE
ECEIVE
APR 0 12016
BY:
0--- n -s n
State Stormwater Management Systems
Permit No. SW8 130112
P-1253 2D Combat Engineer Battalion Ops / Maintenance Complex
Stormwater Permit No. SW8 130112
Onslow Countv Gl
�I
Designer's Certification
I, u IAMJE`'2 , as a duly registered � o *a in the
State of North Carolina, having been authorized to obsery eriodic t / weekly/ full
time) the construction of the project,
t;1NaF-1#1-)
for Mc Fe rApne t. a )eut445 (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 specifications:
A MA%mTENAgw—* DQ.ytnr �s Arm is D@,Pw5\L ,,G c,F
'�W a S"A W%te"' \T t4gs coMv`t12TVP IFP=rv" AA m=Si-o4 cc,ar�2o%�.
am? Ta FtphotL. SNT.
SEAL
Signature
Registration Number QS&o1c�p
Date 3(P�&ot4o
ECEIVE
APR 0 12016
BY:
o--- 0 -4 n
State Stormwater Management Systems'
Permit No. SW8 130112
Certification Requirements: (�►.>�2�
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
K A 4. All roof drains are located such that the runoff is directed into the system.
NIA 5. The outlet structure elevations are per the approved plan.
Na a 6. The outlet structure is located per the approved plans.
_04g7. Trash rack is provided on the outlet structure.
✓ 8. All slopes above permanent pool are grassed with permanent vegetation.
✓ 9. Vegetated slopes above permanent pool are no steeper than 3:1.
✓ 10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
NI At 12. Required drawdown devices are correctly sized and located per the
approved plans.
✓ 13. All required design depths are provided.
✓ 14. All required parts of the system are provided, such as a vegetated shelf, a
forebay; a vegetated filter, level spreader and a secondary BMP.
15. The required system dimensions are provided per the approved plans.
-K[A�_16. All components of the stormwater BMP are located in either recorded
common areas, or recorded easements.
cc: NCDENR-DWQ Regional Office
{ruaeetiens
Mrj,v cApAQ t, WEZ o4IG —
nECEiVE
APR 0 12016
BY:
0--- n-sn