SW8010431_COMPLIANCE_20200601

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 o l o 4 3 1
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

UNITED STATES MARINE CORPS
MARINE CORPS INSTALLATIONS EAST -MARINE CORPS BASE
P5C BOX 20005
CAMP LEJEUNE NC 28542-0005
North Carolina Department of Environmental Quality
Energy, Mineral, and Land Resources
Attn: Dan Sams
127 Cardinal Dr. Ext_
Wilmington, N.C., 28405
Dear Mr. Sams:
JUN 0 4 2020
5090.20
G-F/}3EMD
JUN 0 12020
Marine Corps base, Camp Lejeune is writing this letter to submit
stormwater pond renewal notifications for the following permits
that will expire between 2019 and December 2020. .
Enclosures: (1) through (4) include:
a. Stormwater Pond Permit Renewal Applications;
b. Permittee's Certifications;
c. Engineers Certification if applicable;
d. Current Maps with the Stormwater Control Measures
If you have any questions or require additional information,
please contact Mr. Michael Tay EnviroDWR
al Management
Division, G-F, at (910) 451-9 7
r
BE A. L
Director, Environmental Management
By direction of
the Commanding Officer
Enclosures: (1)
Permit
Renewal
Application
for
SW8
010431
(2)
Permit
Renewal
Application
for
SW8
030406
(3)
Permit
Renewal
Application
for
SW8
050830
(4)
Permit
Renewal
Application
for
SW8
060110
(5)
Permit
Renewal
Application
for
SW8
091108

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L. REUPfFI)EATj°N OF SHIPN.EYI
['

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 b l t)�3 1
DOC TYPE
[ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

Permit No.
N s (to be provided by OWQ)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM' o
D �
HCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION 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.
PROJECT INFORMATION-''
Project Name BEO Courthouse Bay BB147, 1313148, 136149(modification BB147A)
Contact Person Carolina Matiz, PE
Phone Number 678.53OA778
Date 10/21/2013
Drainage Area Number 1
II. DESIGN'INF,ORMATION
'i Y
Site Characteristics
Drainage area 182,516.00 ft2
Impervious area 116,187.00 ft
Percent impervious 63.66 %
Design rainfall depth 1.50 in C1t5433 s1F�
Peak Flow Calculations
1-yr, 24-hr rainfall depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr discharge
Post -development 1-yr, 24-hrdischarge
PrelPost 1-yr, 24-hr peak flow control
Storage Volume: Non -SA Waters
Minimum design volume required
Design volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum required volume
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SH WT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Storage Surface Area
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom Surface Area
3.65 in System designed under old criteria. BUA 115,433 s111.50", BUA 753 sf13.6!
inftr`� -75-3 sC ac6'htn U116� ZLO7 rule
ft3lsec
ft3lsec
ft3lsec
ft3
ft3
14127.00 ft3
0 ft3
2l�ft3
14345 x efi- ft'
14,487.00 ft'
Silty Sand
1.70 inlhr
6.47 fmsl
0.37 days
3.00
:1
8.53
fmsl
10.27
fmsl
9,912,00
ft2
10.99
fmsl
219.00 ft
32.00 ft
6,676.00 ft2
KI
OK
OK
OK
VF
OCI Z 2ai3
aY:
Form SW401-Infiltration Basin-Rev.5 11Ap2011 Parts I. & II. Design Summary, Page 1 of 3

Permit No.
- (fa be provided by DWQ)
Additional Information
Maximum runoff to each inlet to the basin?
ac-in
Length of vegetative filter for overflow
50.00
ft
Distance to structure
125,00
ft
Distance from surface waters
140.00
ft
Distance from water supply weil(s)
NIA
It
Separation from impervious soil layer
NIA
ft
Naturally occuring soil above shwt
silty sand
ft
Bottom covered with 4-in of clean sand?
Y
(Y or N)
Proposed drainage easement provided?
NIA
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms?
Y
(Y or N)
Pretreatment device provided
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Form SW401-Infiltration Basin-Rev.5 11Api2011 Parts I. & II. Design Summary, Page 2 of 3

Permit
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Paget Plan
Initials Sheet No.
BB147ACS101 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.
NIA 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.
NIA 3. Section view of the infiltration basin (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
Inlet and outlet structures.
N/A 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
NIA 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.
C002 8, A construction sequence that shows how the infitlration basin will be protected from sediment until the
entire drainage area is stabilized.
Attached 7. The supporting calculations.
Attached 8. A copy of the signed and notarized operation and maintenance (0&M) agreement.
NIA 9. A copy of the deed restrictions (if required).
Form 5W401-Infiltration Basin-Rev.4 Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3

ti
Permit Number: .SW' OjUf'3
(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 Iocation. 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 1 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
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
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.
ErEIVE
OCT 1 1 200
Form SW40I-Infiltration Basin O&M-Rev.3 BY Pabe I of 3

h
BMP element:
Potentialproblem:
How I will remediate the problem:
The forebay
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
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
revent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
spraying.
The main treatment area
A visible layer of sediment
Search for the source of the
has accumulated.
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 repair.
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.
Form SW401-infiltration Basin O&M-Rev.3
Page 2 of 3

Permit Number:
(to 6e provides! 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:13EQ Courthouse Bay
13MP drainage area number: 1
Print name: Neal Paul
Title:Deputy Public Works _
Address: 1005 Michael Rd.
Phon
Sign,,
Date
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, )-6 " CW�C) V, Vl , a Notary Public for the State of
C , County of Q(nQ6_V� _ _ , do hereby certify that
NUok y � personally appeared before me this Z2)
day of GUt�), and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
KELLEY VANDECOEVERIN
NOTARY PUSLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires 3 l
Form SW40I-Infiltration Basin O&M-Rev.3
Page 3 of 3

1 -0

Aug 08 01 12:42p Kevin Rvolis 252-633-6507 p.3
P-r+nit No. SW 0 '4 3 / /lfU-b
ti (to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This forma may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete startrtwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
L PROJECT INFORMATION
Project Name : ',acnl i or �-:nl i steci Quzr uers , Cam Le jeurn, Hortli Carolina ( Courthouse Bay Araa )�
Contact Person: Joe Avol i s, P E Phone Number: 262 63�-CC68
This worksheet applies to: Basin No.
(as identefied on plans)
in Drainage Area 2
(from Form SWU-101 j
[L DESIGN 12NFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (frnsi).
Soils Report Summary
Soil Type SILTY FI�'F S'Xr.
Infiltration Rate in/hr or cf/hr/sf (circle appropriate units)
SHWY Elevation 8. 99' /2. 74m fmsl (Seasonal High Wafer Table elevation)
Basin Design Parameters
Design Storm l inch (1.5 inch event for SA waters, I inch event for others)
Design Volume 1/! >715 c.f.
Drawdown Time C•A, days
Basin Dimensions p � dl I
Basin Size 1 5 3 ' ( AVG) ft. x 4 8' ( AVG) ft = 7 , 3 52 sq. ft. (bottom dimensions)
Basin Volume Provided 14,715 c,t. tL"Y CarnH--r)
Basin Elevations
Bottom Elevation
Storage Elevation
N Top Elevation
11.02' /3.36m fmsl
12. 6' /3.84m fnls1
i fmsl
Form SWU-103 Rev 3.99 Page 1 of 3

The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Application Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
r..� c. Bottom of system is at least 2 feet above the seasonal high water table.
Ah d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
44 e. System is not sited on or in fill material or DWQ approval has been obtained.
NIA f. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
g. Drainage area for the device is less than 5 acres.
l K.� h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall, (1.5 inch event
for areas draining to SA waters). Design volume and infiltration calculations attached.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage. Calculations attached.
A k. All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
49an 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
/��•- m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches
or dense vegetative cover is provided.
n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters).
o. Flow distribution mechanism within the basin is provided.
�Al p. A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided)
r. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
A.— s. Plans ensure that the installed system will meet design specifications (constructed or restored)
upon initial operation once the project is complete and the entire drainage area is stabilized.
IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
Form 5WU-103 Rev 3.99 Page 2 of 3

' 1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for
erosion, trash accumulation, vegetative cover, and general condition.
1. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
2. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved
design specifications.
3. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when
depth in the pretreatment until is reduced to 75% of the original design depth. The system shall be
restored to the original design depth without over -excavating. Over -excavating may cause the required
water table separation to be reduced and may compromise the ability of the system to perform as
designed. Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a
manner that will adversely impact water quality (i.e. stockpiling near a stormwater treatment device or
stream, etc.).
A benchmark shall be established in the pretreatment unit. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used
to determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the design depth reads 0.5 feet in the pretreatment until, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
4. If the Division determines that the system is failing, the system will immediately be repaired to
original design specifications. If the system cannot be repaired to perform its design function, other
stormwater control devices as allowed by NCAC 2H .1000 must be designed, approved and
constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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.
Print Name and Title: CDR. S. R. Scanlan J "IV13,/,- wo,ff5 U"5 I1" - Q
Address: Commanding General MCBCL, 1005 Michael Road (Code 405) Camp Lejeune, NC 28542-0004
Phone: [phone] Date: -9 APR 0i
Signature:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resid nt of the subdivision has been named the president.
1, Notary Public for State of �1 -County County of
do hereby certify that.. /?" .5t^A,'Z'q personally appeared before me this
day ofz!!�Ao,:� 61>/and acknowledge the due execution of the forgoing infiltration basin maintenance requirements.
Witness my hand and official seal,
SEAL
My Commission expires:
Farm SWU-103 Rev 3.99 Page 3 of 3

RECEIVED
MAINTENANCE GUIDELINES: Bio-Retention Areal
BEQ - Courthouse Bay NOV 12 2004
MCB Camp Lejeune, North Carolina
DWQ
I. Planting Soil PRQJ # swll'o/043j
Urban plant communities tend to become very acidic due to precipitation as well as the
influences of stormwater runoff. For this reason, it is recommended that the application
of an alkaline substance, such as limestone, be considered once or twice a year. Testing
of the pH of the organic layer and soil should precede the limestone application to
determine the amount of limestone required.
Soil testing should be conducted annually so that the accumulation of toxins and heavy
metals can be detected or prevented. Over a period of time, heavy metals and other toxic
substances will tend to accumulate in the soil and the plants. Data from other environs
such as forest buffers and grass swales suggest accumulation of toxins and heavy metals
within five years of installation. However, there is no methodology to estimate the level
of toxic materials in the bio-retention areas since runoff, soil and plant characteristics
will vary from site to site.
As the toxic substances accumulate, the plant biological functions may become impaired,
and the plant may experience dwarfed growth followed by mortality. The biota within
the soil can also perish and the natural soil chemistry may be altered. The preventative
measures would include the removal of the contaminated soil. In some cases, removal
and disposal of the entire soil base, as well as the plant material, may be required.
2. Mulch
13io-retention areas should be mulched once the planting of trees and shrubs has occurred.
Any ground cover specified as plugs may be installed once the area has been mulched.
Ground cover established by seeding and/or consisting of grass should not be covered
with mulch.
3. Plant Materials
An important aspect of landscape architecture is to design areas that require little
maintenance. Certain species involve maintenance problems due to dropping of fruit or
other portions of the plant. Another problem includes plants, primarily trees, that are
susceptible to windthrow, which creates a potential hazard to people and property
(parked cars). As a result, some plant species will be limited to use in low traffic areas.
Ongoing monitoring and maintenance is vital to the overall success of bioretention areas.
Annual maintenance will be required for plant material, mulch layer and soil layer. A
maintenance schedule should include all of the main considerations discussed. The
maintenance schedule usually includes maintenance as part of the construction phase of
the project and for life of the design.

Maintenance requirements will vary depending on the importance of aesthetics. Soil and
mulch layer maintenance will most likely be limited to correcting areas of erosion.
Replacement of mulch layers may be necessary every two to three years. Mulch should
be replaced in the spring. When the mulch layer is replaced, the previous layer should be
removed first. Plant material upkeep will include addressing problems associated with
disease or insect infestations, replacing dead plant material and any necessary pruning.
V7Z�
L. J. eadal, CDR/CEC/US Date
1, Alice Bonnette, a Notary Public of the County of Onslow, State of North Carolina, hereby
certify that L. J. Readal appeared before me this day and being duly sworn acknowledge that the
above form was executed by him.
Witness my hand and notarial seal, this oo) day of , 2004.
Seal Notary
t.
My commission expires

0
RECEIVED
MAINTENANCE GUIDELINES: Bio-Retention Area 2
BEQ - Courthouse Bay NOV 12 2004
MCB Camp Lejeune, North Carolina
Planting Soil
nw@
PROJ # �'�'G1O ¢-3/
Urban plant communities tend to become very acidic due to precipitation as well as the
influences of stormwater runoff. For this reason, it is recommended that the application
of an alkaline substance, such as limestone, be considered once or twice a year. Testing
of the pH of the organic layer and soil should precede the limestone application to
determine the amount of limestone required-.
Soil testing should be conducted annually so that the accumulation of toxins and heavy
metals can be detected or prevented. Over a period of time, heavy metals and other toxic
substances will tend to accumulate in the soil and the plants. Data from other environs
such as forest buffers and grass swales suggest accumulation of toxins and heavy metals
within five years of installation. However, there is no methodology to estimate the level
of toxic materials in the bio-retention areas since runoff, soil and plant characteristics
will vary from site to site.
As the toxic substances accumulate, the plant biological functions may become impaired,
and the plant may experience dwarfed growth followed by mortality. The biota within
the soil can also perish and the natural soil chemistry may be altered. The preventative
measures would include the removal of the contaminated soil. In some cases, removal
and disposal of the entire soil base, as well as the plant material, may be required.
2. Mulch
Bio-retention areas should be mulched once the planting of trees and shrubs has occurred.
Any ground cover specified as plugs may be installed once the area has been mulched.
Ground cover established by seeding and/or consisting of grass should not be covered
with mulch.
3. Plant Materials
An important aspect of landscape architecture is to design areas that require little
maintenance. Certain species involve maintenance problems due to dropping of fruit or
other portions of the plant. Another problem includes plants, primarily trees, that are
susceptible to windthrow, which creates a potential hazard to people and property
(parked cars). As a result, some plant species will be limited to use in low traffic areas.
Ongoing monitoring and maintenance is vital to the overall success of bioretention areas.
Annual maintenance will be required for plant material, mulch layer and soil layer. A
maintenance schedule should include all of the main considerations discussed. The
maintenance schedule usually includes maintenance as part of the construction phase of
the project and for life of the design.

I •r
Maintenance requirements will vary depending on the importance of aesthetics. Soil and
mulch layer maintenance will most likely be limited to correcting areas of erosion.
Replacement of mulch layers may be necessary every two to three years. Mulch should
be replaced in the spring. When the mulch layer is replaced, the previous layer should be
removed first. Plant material upkeep will include addressing problems associated with
disease or insect infestations, replacing dead plant material and any necessary pruning.
"'X of 20 1�.'
Ze'rv�
L. J. Rea al. CDR/CEC/U Date
1, Alice Bonnette, a Notary Public of the County of Onslow, State of North Carolina, hereby
certify that L. J. Readal appeared before me this day and being duly sworn acknowledge that the
above form was executed by him.
Witness my hand and notarial seal, this lb day of (24 22004.
Seal - Notate ry
My commission expires=�('�c%'

STORMWATER CALCULATIONS
MODIFICATIONS TO STORMWATER TREATMENT SYSTEM
BACHELOR ENLISTED QUARTERS
COURTHOUSE BAY
MARINE CORPS BASE, CAMP LEJEUNE
,REC-EIVED
NOV 12 2004
nwe 3
,gel v
PROM #
�■ AVOLIS ENGINEERING, P.A.
L Z�
P.O. Box 15564 ♦New Bern, NC 28561 ♦ [phone] * [phone] Fax

STORMWATER CALCULATIONS
MODIFICATIONS TO STORMWATER TREATMENT SYSTEM
BACHELOR ENLISTED QUARTERS
COURTHOUSE BAY
MARINE CORPS BASE, CAMP LEJEUNE
Prepared by:
Avolis Engineering, P.A.
P.O. Box- 15564
New Bern, NC 28561
[phone] Office
[phone] Fax
Revised November 10, 2004
360 l t

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APPENDIX A

11
STORMWATER INFILTRATION POND DESIGN
BACHELOR ENLISTED QUARTERS
COURTHOUSE BAY
MARINE CORPS BASE, CAMP LEJEUNE, NC
STORMWATER PERMIT # SW8 010431
THIS PROJECT CONSISTS OF THE CONSTRUCTION OF TWO MARINE CORPS
BARRACKS BUILDINGS AND ASSOCIATED ASPHALT PARKING AREAS AT THE
COURTHOUSE BAY AREA OF MARINE CORPS BASE CAMP LEJEUNE, NC. THE
PROJECT IS LOCATED ADJACENT TO COURTHOUSE BAY WHICH HAS A WATER
QUALITY CLASSIFICATION OF "SA". WATERS CLASSIFIED AS "SA" REQUIRE
STORMWATER INFILTRATION BASINS CAPABLE OF HOLDING THE FIRST 1.5
INCHES OF RUNOFF AND DRAWING IT DOWN WITHIN A 5-DAY PERIOD.
THIS PROJECT INCLUDES TWO SEPARATE STORMWATER INFILTRATION PONDS IN
ORDER TO MAINTAIN THE CONTRIBUTORY DRAINAGE AREA AT 5.0 ACRES OR
LESS. THE TWO PONDS ARE LOCATED APPROXIMATELY 300' FROM EACH OTHER.
EACH POND IS LOCATED GREATER THAN 50' FROM THE ADJACENT "SA" WATERS.
BOTH INFILTRATION POND SITES HAVE GREATER THAN TWO FEET OF
SEPARATION BETWEEN THE PROPOSED BOTTOM ELEVATION OF THE POND AND
THE SEASONAL HIGH GROUNDWATER TABLE ELEVATION.
THE FIELD MEASURED INFILTRATION RATES FOR THE TWO POND SITES ARE 1.68
IN/HR (POND #1) AND 2.41 IN/HR (POND #2). BOTH PONDS ARE DESIGNED TO
ACCEPT AND TREAT THE OFF -SITE CONTRIBUTORY RUNOFF.
THE MAJORITY OF THE STORMWATER RUNOFF REACHING THE TWO
STORMWATER INFILTRATION PONDS IS PRETREATED BY WIDE, FLAT SIDE SLOPE
GRASS DRAINAGE SWALES. THESE SWALES CAPTURE, TRANSPORT AND TREAT
ALL OF THE RUNOFF FROM THE ASPHALT PARKING AREAS. A HIGH DEGREE OF
STORMWATER PRETREATMENT, INCLUDING THE OPPORTUNITY FOR
INFILTRATION, IS PROVIDED BY THIS PROJECT.
I
J

COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
A VEGETATIVE FILTER IS PROVIDED AT THE STORMWATER INFILTRATION POND
"SMART WEIR" BYPASS OUTLET INTO COURTHOUSE BAY. THE FILTER HAS A 50'
LENGTH AND A CONCRETE FLOW SPREADER DEVICE.
DESIGN SPECIFICS FOR EACH STORMWATER INFILTRATION POND
STORMWATER POND #1
NOTE: DUE TO NAVY REQUIREMENTS, CONSTRUCTION PLANS ARE
PRESENTED IN THE METRIC SYSTEM. THESE CALCULATIONS ARE
BASED ON THE CONVENTIONAL ENGLISH SYSTEM WITH
CONVERSIONS SHOWN TO DEMONSTRATE PLAN COMPLIANCE WITH
THE CALCULATIONS.
DRAINAGE AREA CHARACTERISTICS:
TOTAL DRAINAGE AREA = 4.19 ACRES = 182,516 SF
ON -SITE IMPERVIOUS AREA = 2.65 ACRES = 115,434 SF
OFF -SITE IMPERVIOUS AREA = 059 ACRES = 25,700 SF
PERVIOUS AREA (GRASSED) = 182,516 SF - (115,434 + 25,700) = 41,382 SF
% BUILT -UPON AREA = 11 434 SF + 25.700 SF = 77.3%
182,5I6SF.
• INCLUDES OFF -SITE AREA DRAINING INTO PROJECT

[COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
BREAKDOWN OF DRAINAGE AREA SURFACES & RUNOFF COEFFICIENTS.
REF. TABLE 8.03a ESCPDM
DESCRIPTION
AREA
"C" VALUE
ON -SITE BUILDINGS
20,909 SF
0.95
ON -SITE STREETS
3,049 SF
0.90
ON -SITE PARKING
51,401 SF
0.90
ON -SITE SIDEWALKS
10,454 SF
0.90
ON -SITE GRAVEL DRIVE
3,920 SF
0.80
OFF -SITE ASPHALTBLDGS.
25,700 SF
0.95
PERVIOUS (GRASSED) AREAS
67.083 SF
Q,1i
• , Sandy Soil, 2-7%
182,516 SF
C= 0.635
1.5" STORM RUNOFF
2,483 FT 3
343 FT 3
5,783 FT 3
1,176 FT 3
392 FT'
3,052 FT 3
1.,258 FT 3
TOTAL 1.5" STORM RUNOFF VOLUME = 14,487 FT 3
DETERMINE WATER LEVEL RISE IN FILTRATION POND #1 ASSOCIATED WITH THIS
RUNOFF VOLUME. POND BOTTOM ELEVATION = 8.53 FT (2.6 Meters).
CONTOUR
AREA.
(SF)
INCREMENTAL
STORAGE (FT 3)
CUMMULATIVE
STORAGE
8.53' (2.6M)
6,576
0
0
9.84' (3.00M)
9,058
10,240
10,240
10.99' (3.35M)
10,636
11,324
21,564
DETERMINE POND STAGE ASSOCIATED WITH 1.5" RUNOFF VOLUME.
VOLUME STORED BETWEEN 8.53' & 9.84'.COUNTOUR = 10,240CF
VOLUME TO BE STORED ABOVE 9.84' = 14,487 - 10,240 = 4,247CF
POND RISE ABOVE 9.84' CONTOUR = 4,247CF 10.99' - 9.84) = 0.43'
11,324CF
.% 1.5" STORM POND STAGE = 9.84 FT + 0.43 FT = 10.27 FT
10.27 FT 3.13M

COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
USE A "SMART WEIR" OR STORMWATER BYPASS STRUCTURE IN ORDER TO
PREVENT LARGER STORMWATER RUNOFF EVENTS FROM WASHING THROUGH
THE INFILTRATION POND. THIS DEVICE WILL ALLOW THE FIRST 1.5" FLUSH OF
RUNOFF TO BE CAPTURED AND TREATED.
SET BYPASS STRUCTURE WEIR AT 10.27 FT (3.13M)
SIZE STORMWATER BYPASS STRUCTURE AND PIPING TO PASS THE I00-YEAR
STORM EVENT.
MAINTAIN THIS CALCULATION AS CONSERVATIVE AND SIMPLE SINCE STORM
ROUTING WILL PROVIDE NO SIGNIFICANT ECONOMICAL BENEFIT DUE TO SHORT
PIPE OUTFALL DISTANCE.
REF, SECPDM, FIGURE 8.03b
TIME OF CONCENTRATION (Tc)
WILMINGTON I-D-F
INTENSITY
8.2 IN/HR
6.3 IN/HR
5.4 IN/HR
TIME REQUIRED TO FILL POND #1 AT 8.2 IN/HR
SITE FLOWRATE AT 8.2 IN/HR = Q = CIA = (0.635) (8.2IN/HR) (4.19/AC)
= 21.82 CFS
TIME TO FILL POND #1 =14 4. 87 FT' = 664 SEC. = 1 I MIN
21.82 FT'/S
USE 10 MIN STORM CONCENTRATION TO SIZE BYPASS
USE I = 8.2 IN/HR
Q = CIA = 21.8 CFS AS ABOVE

COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
USE MANNING EQ'N. TO SIZE OUTLET PIPE FOR BYPASS.
SET SLOPE OF PIPE AT 0.5% (MINIMUM)
D= 16 (QN/ds = 16 (2I.8 * 0.016 / f 0.005) /t = 26.92"
:. USE 36" BYPASS PIPE DUE TO POOR AVAILABILITY OF SMALLER 27" PIPE
AND TO PROVIDE ADDITIONAL CAPACITY AS POND LEVEL APPROACHES
DESIGN ELEVATION
' SET BYPASS STRUCTURE OUTLET PIPE INTO INFILTRATION POND WITH ENOUGH
EXPOSED FREEBOARD TO PERMIT THE PASSAGE OF A FLOWRATE OF 21.8 CFS
EVEN AS THE POND IS REACHING ITS PEAK 1.5" STORM STAGE.
OVERFLOW AT BYPASS STRUCTURE WILL BE A 6" CRESTED WEIR. SIZE WEIR
LENGTH TO PERMIT ONLY A 0.75' RISE OF WATER OVER THE WEIR.
' BASIC WEIR EQUATION, Q = CwLH 1.5
� I
� I
u
11
II
USE Cw = 3.0 FOR FREE OVERFALL
REQUIRED WEIR LENGTH = L = Q / (Cwd'S-) = 21.8 / (3.0) (0.75)"6
L = 11.2 FT SAY 12 FT
ACTUAL WATER RISE OVER WEIR IN 100-YEAR STORM,
H=Qi(Cw? )=21.8/(3.0)(12')°"``�
H = 0.72 FT = 8.6" _
THIS LEVEL IS REASONABLE CONSIDERING WITHIN 10 MINUTES OF THE POND
FILLING DURING THE 100-YEAR STORM, THE RAINFALL INTENSITY WILL BE
DOWN TO 6.3 INIHR
11

1
1
COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
20 MINUTES INTO 100-YEAR STORM, Q = CIA = (0.635) (6.3) (4.19)
16.7 CFS
WATER LEVEL OVER 12' LONG WEIR
H = (Q / (CWL) = (16.7 / (3.0) (12.0} "po
=0.60FT=7.2" -OK
ANALYZE DRAWDOWN OF STORMWATER INFILTRATION POND #1
STORED WATER VOLUME = 14,487 FT 3
INFILTRATION RATE = 1.68 IN/HR = 0.14 FT/HR
(REF. CONSTANT HEAD PERMEABILITY TEST BY ECS, LTD DATED 4/5/01)
SEASONAL HIGH/GROUNDWATER ELEVATION = 6.47 FT (1.97m)
POND BOTTOM ELEVATION = 8.53 FT (2.6m)
POND/WATER TABLE SEPARATION = 8.53' - 6.47' = 2.06 FT.
' DEPTH OF 1.5" RUNOFF VOLUME IN POND = 10.27' = 8.53' = 1.74FT = 20.9 IN
DUE TO VERTICAL SEPARATION BETWEEN BOTTOM OF POND AND THE
.' GROUNDWATER LEVEL, THE FLOW OUT OF THE POND IS APPROXIMATELY
DOWNWARD.
TIME REQUIRED FOR INFILTRATION = 20. IN POND DEPTH
1.68 IN/HR
W = 12s44 HOURS { 120 HOURS
-OK
11

COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D)
STORMWATER POND #2
DRAINAGE AREA CHARACTERISTICS:
TOTAL DRAINAGE AREA = 4.87 AC = 212,137 SF
ON -SITE IMPERVIOUS AREA = 2.61 ACRES = 1,1-31:093 SF
' OFF -SITE IMPERVIOUS AREA = 0.15 ACRES = 6,534 SF Q
PERVIOUS AREA GRASSED = 212,137 SF - `D-693 F + 6,534 SF = 'ram SF
% BUILT -UPON AREA = `� I F + 6.5 3 4 SF = 56-7°T S 3 -Vk
' 212,137SF
• INCLUDES OFF -SITE AREA DRAINING INTO PROJECT
' BREAKDOWN OF DRAINAGE AREA SURFACES & RUNOFF COEFFICIENTS.
REF. TABLE 8.03a ESCPDM
DESCRIPTION
AREA
ON -SITE BUILDINGS
20,038 SF
ON -SITE STREETS
13,504 SF
ON -SITE PARKING
57,935 SF
ON -SITE SIDEWALKS
8,712 SF
ON -SITE GRAVEL DRIVE
6,970 SF
OFF -SITE ASPHALTBLDG
6,534 SF
PERVIOUS (GRASSED) AREAS_ 98,444 SF
212,137 SF
"C" VALUE
1.5" STORM RUNOFF
0.95
2,380 FT 3
0.90
1,519 FT 3
0.90
6,518 FT 3
0.90
980 FT 3
0.80
697 FT 3
0.95
776 FT 3
0.15
1.846 FT 3
C=0.55
TOTAL 1.5" STORM VOLUME = 14.716 FT 3
1

1
COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONTINUED)
DETERMINE WATER LEVEL RISE IN INFILTRATION POND #2 ASSOCIATED WITH
THIS RUNOFF VOLUME. POND BOTTOM ELEVATION = 9.84 FT (3.00 METERS).
+ CONTOUR
;AREA (Ski
INCREMENTAL
; CUMULATIVE- ',
STORAGE (1aT')' '`
Y
'STORAGE
11.02' (3.36M)
7,352
0
0
13.12' (4.00M)
11,297
19,581
19,581
DETERMINE POND STAGE ASSOCIATED WITH 1.5" RUNOFF VOLUME.
14,716' (13.12' - 11.02') = 1.58 FT RISE
19,581,
:. 1.5" STORM POND STAGE = 11.02' + 1.58' = 12.6 FT (3.84M)
SET STORMWATER BYPASS WEIR STRUCTURE AT 12.6 FT 3.84M
AS WITH POND #1 ABOVE,
INTENMTY
10 MIN
8.2 IN/HR
20 MIN
6.3 IN/HR
r3OMIN
5.4 IN/HR
TIME REQUIRED TO FILL POND #2 AT 8.2 IN/HR
Q = CIA = (0.55)(8.2)(4.87 AC) = 22.0 CFS
TIME REQUIRED TO FILL = 14,716 FT = 669 SEC = 11.2 MIN
22.0 FT3/s

' COURTHOUSE BAY BE 'S MCB CAMP LEJEUNE CONTINUED
:. USE 10 - MIN STORM CONCENTRATION TO SIZE BYPASS.
USE I = 8.2 IN/HR
Q = 22.0 CFS
FLOWRATE FOR POND #1 DESIGN WS 21.8 CFS WHICH IS CLOSE ENOUGH TO 22.0
' SINCE POND #1 BYPASS PIPE WAS UPSIZED FROM 27" TO 36".
I.% USE 36" DIA. BYPASS PIPE
' CHECK TEMPORARY WATER LEVEL RISE OVER THE SAME SIZE BYPASS WEIR.
I -
H= 1�_1 2/3= 22.0 )2/3=0.72FT-OK
1 CwL (3.0)(12')
SAME RISE OVER WEIR AS POND 91 - OK
STORED WATER VOLUME = 14,716 FT'
INFILTRATION RATE = 2.41 1N/HR = 0.20 FT/HR
(REF. CONSTANT HEAD PERMEABILITY BY ECS. LTD DATED 04/05/01)
SEASONAL HIGH GROUNDWATER ELEVATION = 9.00 FT (2.74M)
POND BOTTOM ELEVATION = 11.02 FT (3.36M)
POND/WATER TABLE SEPARATION = 1 L02FT - 9.00FT = 2.02'
' DEPTH OF 1.5" RUNOFF VOLUME IN POND = 12.6' - 11.02' = 1.58FT = 19.0 IN
I ;

COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONTINUED)
DUE TO VERTICAL SEPARATION BETWEEN BOTTOM OF POND AND THE
GROUNDWATER LEVEL, THE FLOW OUT OF THE POND IS DOWNWARD.
TIME REQUIRED FOR INFILTRATION = 19.0 IN POND DEPTH
2.41 IN/HR
= 7.9 HOURS < 120 HOURS - OK

Central Files: APS _ SWP
8/7/2020
Permit Number SW8010431
Permit Tracking Skip
Program Category
Status Project Type
State SW
Active Renewal
Permit Type
Version Permit Classification
State Stormwater
2.00 Individual
Primary Reviewer
dan.sams
Coastal SWRule
Coastal Stormwater- 1995
Permitted Flow
Facility
Permit Contact Affiliation
Facility Name Major/Minor Region
BEQ P 159A N62470-99-R-9127 Jackson Street Minor Wilmington
Location Address County
Jackson St Onslow
Facility Contact Affiliation
Camp Lejeune NC 285420004
Owner
Owner Name Owner Type
Commanding Officer Marine Corps Base Camp Lejeune Government - Federal
Owner Affiliation
Robert A. Lowder
Director Division Enviromental G-F Manageme(
Attn Emd
DateslEvents Camp Lejeune NC 2854725,
Scheduled
Orig Issue App Received Draft Initiated Issuance Public Notice issue Effective Expiration
8/8/2001 6/16/2020 8/612020 8/6/2020 1/10/2027
Regulated Activities Requested /Received Events
State Stormwater - HD - Infiltration
Outfall
Waterbody Name Streamindex Number Current Class Subbasin

Burd, Tina
From:
Burd, Tina J
Sent:
Thursday, July 9, 2020 4:37 PM
To:
Barraco CIV Talia M
Subject:
SW8 010431 - BB149
The Wilmington Regional Office of the Division of Energy, Mineral and Land Resources (Stormwater Section) accepted
the Stormwater Permit Renewal Application and $505.00 fee for the subject project on June 16, 2020. The project has
been assigned to Darr Sams and you will be notified if additional information is needed.
Best Regards,
Tina Burd
Administrative Associate it
Wilmington Regional Office
Division of Environmental Assistance & Customer Service
Phone [phone]
NCDEQ
Wilmington Regional Office
127 Cardinal Drive Ext.
Wilmington, NC 28405
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
1

Application Completeness Review Checklist (Non -Transfers) - Short Version
Project Name: ;6 Q V 159 A j4cresoa cSrieEeT Date Delivered to WIRO: ` zO Zj
Project County/Location: 0Z,5L0t_J filtCZ BIMS Received/Accepted Date: (p 6ZD
Rule(s): El2017 Coastal 2008 Coastal �1995 Coastal BIMS Acknowledged Datel:
Phase k Universal �1988 Coastal
Permit Action: New
Major Mod / Minor Mod 4Ews#
Permit Type: }-iD LD / LD Overall / HD &LD Combo
General Permit / Offsite / Exempt / Rescission
Development Type: Commercial / Residential / Other f ii_i C p.P_Y
Subdivided?: Subdivision or Single Lot '�'/Yet
Permittee Type & Documents Needed:
Property Owners)Purchaser Lessee
Viable? E]Viab4e? Viable?
Deed E]PurchaseAgmt Lease
FiNot Subdivided: Deed
Subdivision: Common Area Deed
Paperwork
application
FiFee: �$5Q5 (within 6mo) Check#(s):
New Permit #2:
Existing Permit #: _6tz a r21j) 4,3 %
Expriation Date 3: 1 la ZDI'3`
FlOffsite to SW$: I
Lot is in Master Permit?
OPE Cert on File?
FIHOA Developer
ED Viable? Viable?
Election Minutes
nSupplement2 (1 new form or for older forms: 1 original per SCM)
ElO&M 2
Soils Report (lnfil or PP)
Calculations (signed/seoled)
Deed Restrictions, if subdivided
EJProject Narrative
MUSGS Map (or on file?) Subject to SA?: Y / N Subject to ORW?
Plans (2 Sets)
FIFE Certification
Electronic Copies
Easements, Recorded (2017 Rules)
NOTES:
1Enter BIMS Acknowledged Date on this Sheet
2For New Projects -Enter New Permit # on Suppiements & Deed Restiction Templates
F-1No Fee
Y / N
3if w/in 6 months and they are requesting a mod, STOP. Needs a renewal first.
EMAILED ENGINEER DATE: Comments:
REVIEWER NAME:
G:WQ\\\Reference Libra ry\Procedures\Checklists\Comoleteness Review Checklist_2020 01 31