SW8070926_HISTORICAL FILE_20090407

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 010011lp
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2ooc I Dq O'l
YYYYMMDD

' r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colleen H. Sullins
Governor Director
April 7, 2009
Carl Baker, Deputy Public Work Officer
MCB Camp Lejeune
BLDG 1005 Michael Road
MCB Camp Lejeune, NC 28547-2521
Subject: Stormwater Permit No. SW8 070926 MOD
MCB Camp Lejeune Wounded Warrior Barracks Site
High Density Project
Onslow County
Dear Mr. Baker
Dee Freeman
Secretary
The Wilmington Regional Office received a complete Stormwater Management Permit
Application Modification for MCB Camp Lejeune Wounded Warrior Barracks Site on March 11,
2009. Staff review of the plans and specifications has determined that the two (2) wet detention
ponds in Drainage Areas 1 and 2, as proposed, will comply with the Stormwater Regulations set
forth in Title 15A NCAC 2H.1000 and the NPDES Phase II Post Construction Requirements set
forth in Session Law 2006-246. The infiltration basin in Drainage Area 3, as proposed, will
comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000, and the Session
Law 2008-211, effective October 1, 2008. We are forwarding Permit No. SW8 070926MOD
dated April 7, 2009 for the construction and operation of the subject project.
This permit shall be effective from the date of issuance until November 16, 2017, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to
the Operation and Maintenance requirements in this permit. Failure to establish an adequate
system for operation and maintenance of the stormwater management system 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 upon written request within thirty (30) days following
receipt of this permit. This request must be in the form of a written petition, conforming to
Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this
permit shall be final and binding.
If you have any questions, please contact Steve Pusey or me at [phone].
Sincerely,
��ilicScsct
Georgette Scott
Stormwater Supervisor
Surface Water Protection Section
GDS/sgp: S:\WQS\STORMWATER\PERMIT\070926rnod.apr09
cc: Bryan Dick, EIT, PH, Earth Tech / AE COM
Onslow County Building Inspections
ftington Regional-Office-1
Central Files
Steve Pusey
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Phone: [phone] FAX: [phone] Customer service: 1-877-623-6748 North Carolina
Internet: www.navaterquality.org Cv/ �/ �7►N���� atu
An Equal Opportunity t Affirmative Action Employer

State Stormwater Management Systems
Permit No. SW8 070926 MOD
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Carl Baker, Deputy Public Works Officer and USMCB Camp Lejeune
USMCB Camp Lejeune Wounded Warrior Barracks Site
Brewster Blvd, Jacksonville, USMCB Camp Lejeune, Onslow County
FOR THE
Construction, operation, and maintenance of two (2) wet detention ponds in Drainage Areas 1
and 2, in compliance with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and
the NPDES Phase II Post Construction Requirements set forth in Session Law 2006-246, and
one (1) infiltration basin in Drainage Area 3, in compliance with the Stormwater Regulations set
forth in Title 15A NCAC 2H.1000, and Session Law 2008-211, effective October 1, 2008, and
the approved stormwater management plans and specifications and other supporting data as
attached and on file with and approved by the Division of Water Quality and considered a part of
this permit.
This permit shall be effective from the date of issuance until November 16, 2017, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Sections 1.8 and 1.9 on page 3 of this permit. The stormwater control has
been designed to handle the runoff from 245,390 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated in Sections 1.8 and 1.9
on page 3 of this permit, and per approved plans.
All stormwater collection and treatment systems must be located in either dedicated
common areas or recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
Page 2 of 8

State Stormwater Management Systems
Permit No. SW8 070926 MOD
5.
i]
.03
The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
The two wet ponds and the one infiltration basin must be operated with a 30' vegetated
filter, designed to pass the peak flow from the 10 year storm in a diffuse and non -erosive
manner.
The project shall provide a 50' wide vegetated buffer adjacent impounded structures,
streams, rivers, and tidal waters in Drainage Area Number 3, which is subject to 15A 02H
.1000 and SL2008-211, effective October 1, 2008.
The following design criteria have been provided in the wet detention ponds and must be
maintained at design condition:
a. Rule subject:
b. Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
C. Total Impervious Surfaces, ft2:
d. Design Storm, inches:
e. Pond Depth, feet:
f. TSS removal efficiency:
g. Permanent Pool Elevation, FMSL:
h. Permanent Pool Surface Area, ft2:
i. Permitted Storage Volume, ft3:
j. Temporary Storage Elevation, FMSL:
k. Controlling Orifice:
I. Permitted Forebay Volume, ft3:
M. Fountain Horsepower, HP
n. Receiving Stream/River Basin:
o. Stream Index Number:
P. Classification of Water Body:
Pond - DA # 1
Pond - DA #2
SL 2006-246
SL 2006-246
9.3
6.5
405,846
283,140
0
0
94,955
128,503
1.5
1.5
5.5 (3.16 avg.)
6 (3.11avg.)
85%
85%
7
14
19,323
18,345
21,210
20,318
8
14
2.5" Q pipe
2.5" Q pipe
12,967
15,872
/4 HP
/4 HP
Northeast Creek / New River / White Oak
19-16-(3.5)
"SC;HWQ,NSW"
The following design criteria have been permitted for the infiltration basin and must be
provided and maintained at design condition:
Infiltration Basin - DA #3
a.
Rule Subject:
SL 2008-211
b.
Drainage Area, acres:
4.0
Onsite, ft2:
174,869
Offsite, ft2:
0
C.
Total Impervious Surfaces, acres:
0.5
ftz:
21,932
Proposed onsite, ft2:
21,932
Existing onsite, ftz:
0
d.
Design Storm, inches:
1.5"
e.
Basin Depth, feet:
1
f.
Bottom Elevation, FMSL:
14.0
g.
Bottom Surface Area, ftz:
3,500
h.
Bypass Weir Elevation, FMSL:
15.0
i.
Permitted Storage Volume, ft3:
3,878
j.
Predevelopment 1 yr 24 hr peak flow, cfs:
0.28
k.
Post -development 1 yr 24 hr peak flow, cfs:
0.06
I.
Type of Soil:
Baymeade
m.
Expected Infiltration Rate, in/hr:
0.80
n.
Seasonal High Water Table, FMSL:
11.50
o.
Time to Draw Down, hours:
16.6
P.
Receiving Stream/River Basin: Northeast
Creek / New River / White Oak
q.
Stream Index Number:
19-16-(3.5)
r.
Classification of Water Body:
"SC;HWQ,NSW"
Page 3 of 8

State Stormwater Management Systems
Permit No. SW8 070926 MOD
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
The permittee shall at all time provide the operation and maintenance necessary to
assure the permitted stormwater system functions at optimum efficiency. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance must
occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
h. Maintain level spreaders in accordance with approved plans and specifications.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. Decorative spray fountains will be allowed in the stormwater treatment system, subject to
the following criteria:
a. The fountain must draw its water from less than 2' below the permanent pool
surface.
b. 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.
c. The falling water from the fountain must be centered in the pond, away from the
shoreline.
d. The maximum horsepower for a fountain in these ponds is 1/4 horsepower.
6. The facilities shall be constructed as shown on the approved plans. This permit shall
become void unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications
must be noted on the Certification. A modification may be required for those deviations.
8. 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. Access to the stormwater facilities shall be maintained via appropriate easements at all
times.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW8 070926 MOD
10. The permittee shall submit to the Director and shall have received approval for revised
plans, specifications, and calculations prior to construction, for any modification to the
approved plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership of any part of the permitted property.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project area. The
project area is defined as all property owned by the permittee, for which
Sedimentation and Erosion Control Plan approval or a CAMA Major permit was
sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
11. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
13, 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.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director. In the
event of a change of ownership, or a name change, the permittee must submit a formal
permit transfer request to the Division of Water Quality, accompanied by a completed
name/ownership change form, documentation from the parties involved, and other
supporting materials as may be appropriate. The approval of this request will be
considered on its merits and may or may not be approved. The permittee is responsible
for compliance with all permit conditions until such time as the Division approves the
transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances, which may be imposed by other
government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be required by this Division, such as the construction of additional or
replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted stormwater
management facility.
6. The permit issued shall continue in force and effect until revoked or terminated. The
permit may be modified, revoked and reissued or terminated for cause. The filing of a
request for a permit modification, revocation and reissuance or termination does not stay
any permit condition.
Page 5 of 8

State Stormwater Management Systems,
Permit No. SW8 070926 MOD
7. Unless specified elsewhere, permanent seeding requirements for the stormwater control
must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
10. The permittee shall submit a permit renewal application at least 180 days prior to the
expiration date of this permit. The renewal request must include the appropriate
documentation and the processing fee.
Permit issued this the seventh day of April 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
0 oleen W Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
S-d
—f 0 4, z
SW O 7w /Yl
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This forni ?nay be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Commanding Officer, Marine Corps Base, Camp Lejeune
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Carl Baker, Deputy Public Works Officer
3. Mailing Address for person listed in item 2 above:
Bldg 1005 Michael Rd.
City: MCB Camp Lejeune State:NC Zip:28547
Phone: (910 ) 451-2213 Fax: (910 ) 451-2927
Email: [e-mail]
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
USMCB Camp Lejeune, Wounded Warrior Barracks Site
5. Location of Project (street address):
City:USMCB Camp Leieune County:Onslow Zip:28547
6. Directions to project (from nearest major intersection):
In Jacksonville go east on NC 24 (Lejeune Blvd) to Camp Lejeune main gate.Turn Right onto Holcomb Blvd.
Take first right onto Brewster Blvd. Proceed approx.1 mile then turn right onto Hospital Corps Blvd. .
7. Latitude:340 43' 21.2" N Longitude:77° 21' 44.05" W of project
8. Contact person who can answer questions about the project:
Name:Bryan M. Dick Telephone Number: (919 ) 854-6252
Email: bryan.dick©aecom.com
II. PERMIT INFORMATION:
1. Specify whether project is (check one):
[-]New
[]Renewal ®Modification
Form SWU-101 Version 09.25.08 Page I of

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit numberSW8 070926 and its issue date (if known)11/16/2007
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks; information oil required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ❑Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial Stormwater
Ill. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Additional Stormwater from contruction of Barracks Rd. will be routed via grassed swales from impervious
areas to one infiltration basin. The infiltration basin meets DWO requirments for drawdown time and is sized for
the required treatment volume. Two wet detention basins already exist on the site and treat the remaining
impervious area on this site. This project is not within 1 /2 mile of SA waters or within 575 ft of ORW waters
2. Stormwater runoff from this project drains to the White Oak River basin.
3. Total Property Area: 23.1 acres 4. Total Coastal Wetlands Area: 0 acres
5. Total Property Area (3) — Total Coastal Wetlands Area (4) = Total Project Area**:23.1 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (13UA):24.2 1%
7. How many drainage areas does the project have?3
8. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Foi high density projects, complete the table with one drainage area for each engineered stormwater device.
Basin Information- -
.. Drainage Area 1 .5Y44-r
. Drainage Area 2 -V4
Receiving Stream Name
Northeast Creek MOD
Northeast Creek
Stream Class & Index No.
SC; 19-16-(3.5)
SC; 19-16-(3.5)
Total Drainage Area (sf)
405,846 (9.3 ac)
283,140 (6.5 ac)
On -site Drainage Area (sf)
405,846
283,140
Off -site Drainage Area (sf)
0
0
Existing Impervious* Area (sf)
0
0
Proposed Impervious*Area (sf)
94,955 (2.17 ac)
128,502 (2.95 ac)
0% Impervious* Area (total)
23.4%.
45.40/
Impervious* Surface Area -
Drainage Area 1
Drainage Area 2
On -site Buildings (sf)
10,827
31,799
On -site Streets (sf)
54,729
6,970
On -site Parking (sf)
10,492
84,942
On -site Sidewalks (sf)
18,907
4,792
Other on -site (sf)
N/A
N/A
Off -site (sf)
0
0
Total (sf):
94955
128,503
Penn SWU-Intl Version 09.25.08 Pace 2 ot4
2a -rc4

Drainage Area Information Sheet
Basin Information ==
�D.rainage Area'3'.
Receiving Stream Name
Northeast Creek
Stream Class & Index No.
SC; 19-16-(3.5
Total Drainage Area (sf)
174,869 (4.0 ac)
On -site Drainage Area (sf)
174,869
Off -site Drainage Area (sf)
0
Existing Im ervious'Area(sf)
0
Proposed Im ervious'Area(sf)
21,932 (0.5 ac)
%Im ervious'Area(total)
12.54%
Irn 'envious'Surface Area - '
Drainage Area 3-.
On -Site Buildings (sf)
0
On-ste Streets (st)
16883
On -site Parkin (sf)
0
On -site Sidewalks (sf)
4258
Other on -site (sf)
791
Off -site (sf)
0
Total (sf)
21932
Z 6 -f `1

Impervious area is drfined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, el c.
**Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived?
Projects in Union County: Contact the DVVQ Central Office staff to check to see if you project is located
within a Threatened & Endangered Species watershed that may be subject to more stringent stornuvater
requirements.
WJW1TtT:lI1XW691Y:7L•1rC140d Lx•L4P0&Joil
One of the following property restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
Forms can be downloaded from http://h2o.enr.stite.nc.tis/su/binp forms.htm - deed restrictions.
Form DRPC-1 High Density Commercial Subdivisions
Form DRPC-2 High Density Developments with Outparcels
Form DRPC-3 High Density Residential Subdivisions
Form DRPC-4 Low Density Commercial Subdivisions
Form DRPC-5 Low Density Residential Subdivisions
Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded property restrictions and protective covenants for this
project shall include all the applicable items required in the above form, that the covenants will be binding on
all parties and persons claiming under them, that they will run with the land, that the required covenants
cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to
the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stornnvater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater Permitting Unit at [phone] for the status and
availability of these forms. Forms can be downloaded from httu://h2o.enr.state.nc.us/su/bmp forms.htm.
Form SW401-Low Densitv
Form SIV401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW40'1-Infiltration Trench
Form SW401-13ioretention Cell
Form SW401-1-evel Spreader
Form SW401-Wetland
Form SW401-Crassed Swale
Form SW401-Sand Filter
Form SW40'1-Permeable Pavement
Form SW401-Cistern
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
I3ioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Crassed Swale Supplement
Sand Filter Supplement
Permeable Pavement Supplement
Cistern Supplement
Form SWU-101 Version 09.25.08 Paec 3 of 4

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at httn://b2o.enr.state.ne.us/su/msi ntans.html
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
&IM!V
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
oe2;�a
required as per Part IV above)
��^✓
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
/.�
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), including:
- Development/ Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/ project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm):BEyan M. Dick, PH
Mailing Address:701 Corporate Center Dr., Suite 475
City:Raleigh State:NC Zip:27607
Phone: [phone] Fax: (864 ) 506-1465
E ma i I: bryan. d ick@aecomc
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Info nation, item 2)
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project wt elIconstructed in conformance with the approved plans, that the required deed restrictions
and protective Ovenqhts will b ec rded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1 0. // 11
Date: o —0?9 —V C/
FormSWU-101 Version09.25.08 Page4of4

Subject:
From: "Dick, Bryan" <[e-mail]>
Date: Wed, 1 Apr 2009 18:06:39 -0400
To: "Steve Pusey" <[e-mail]>
Steve,
I wanted to summarize our conversation about the Wounded Warrior Barracks stormwater permit SW8 081113
and provide you with the documentation you need to ensure that the design is environmentally sensitive.
1). You first concern was the explanation of the c=2.92 on the calculation of velocity for the level spreader. I
have attached the actual spreadsheet, which I believe you will find helpful. The C in the weir equation is the
weir coefficient, a dimensionless number that adjust the theoretical flow over a weir to meet the observed
values of past research (empirical adjustment). Typical values range around 2.8 -3.5, depending on the shape
of the weir, width, etc. The rest is addressed in item 2.
2). My response letter was overly confusing. Hopefully, this is better... What I was trying to say was simply that
we have provided documentation that the length of the level spreader of 64' is based on the 4.92 cfs of flow
from the 10 year storm. The 4.92 cfs represents the un-attenuated flow rate, as calculated by the DWQ Level
Spreader Supplement, using the rational method. I felt that using the unattenuated flow rate was a conservative
treatment and it kept me from creating change in multiple documents. The included spreadsheet will show you
that if you meet the DWQ requirement of 13 linear feet of level spreader per 1 cfs of flow coming to the level
spreader the velocity over the level spreader lip will be 0.87 fps, which is much less than the standard criteria of
3.0 fps for the critical shear velocity in typical grasses. The calculation example I gave shows a unit based level
spreader calculation, in my attempt to demonstrate the idea. With the 13' for the length of the weir, and 1.0 cfs
coming to the weir, the velocity is 0.87 fps over the weir. For our weir, the parameters were 137cfs multiplied by
the 4.92 cfs of flow that we have on the 10 yr storm, for a length of 64' long. If you plug in 64' for L in the
spreadsheet and 4.92 cfs for Q, it will show that the velocity is still 0.87 fps. So, if we meet the DWQ
requirements of length, based on flow rate, our velocities from level spreaders will always be 0.87 fps.
3). 1 checked and the design plans do call for a 64' long level spreader located in the SE corner of sheet
C1-103.
I believe that this addresses your concerns and if not, please let me know. I appreciate you allowing us the
chance to explain our design, especially when we are possibly able to be able to handle it without any material
changes to the plans, supplements, and application.
With regard to TECOM site, we will send it to you on Friday. Comment 1 will have already been addressed with
the explanation above for #1, but I will iterate it for documentation on that project. Items 2 and 3 of you letter
are being addressed -with slight changes to the slope of the filter strip....
Thanks again for letting me address this directly, while you still had it in front of you
Bryan
Bryan M. Dick, PH
Water / Natural Resources Group Mgr., Southen States Region
AECOM Transportation
C - 864-506-1465
D-919-854-6252
bryan. d ick(od)aecom. com
AECOM
701 Corporate Center Dr.
Suite 475
Raleigh, NC 27607
919-854-6200 - T
919-854-6259 - F
I of 2 4/2/2009 11:21 AM

STORMWATER MANAGEMENT PLAN
PREPARED FOR: MCB CAMP LEJEUNE
WOUNDED WARRIOR BARRACKS
EARTH TECH, INC
701 CORPORATE CENTER DR., SUITE 475
RALEIGH, NC 27607
919-854-6200
PREPARED BY:
BRYAN M. DICK, EIT, PH
CHECKED BY:
B I t_ 1,012 WKf f46,, P E
SEAL 3
22613
%yy
ems CCAi...
3/01/vl

Infiltration Basin 1 WWB Check for Scour Velocity (>3.0 fps) for the Level Spreader
Date: 3/8/2009
By: BMD
Q (cfs)= 4.92 From Calcs on Supplement
2
3 C= 2.92 From Hydrocad 8.0 manual for BCW#2
H = L (ft)= 64
C X L
Calcuated H (ft) Flow Area (sf) Calculated V (fps)
0.09 5.7 F 0.87
Conclusion:
1:) Non erosive velocity is leaving the level spreader lip on the 10 Yr storm, even without attenuation from BMP
2:) Level spreader flow length is controled by width requirements to meet filter width, not by velocity/ scour concerns.

101831 VWIIB Basin
Prepared by {enter yo
HydrOCADO 8.00 s/n 00:
1- Post -Used for Validation of Level Type /// 24-hr 10yr Rainfall=6.90"
tr comaanv name here}
Pond 5P: Infiltration Basin
Inflow Area = 4.014 ac, Inflow Depth > 1.75" for 10yr event
Inflow = 2.87 cfs @
12.96 hrs, Volume= 0.586 of
Outflow = 2.55 cfs @
13.17 hrs, Volume= 0.492 af, Atten= 11 %, Lag= 12.9 min
Primary = 2.55 cfs @
13.17 hrs, Volume= 0.492 of
Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs
Peak Elev= 15.32' @ 13.17 hrs
Surf.Area= 0 sf Storage= 5,235 cf
Plug -Flow detention time= 103.2 min calculated for 0.492 of (84% of inflow)
Center -of -Mass det. time= 38.0 min ( 955.0 - 916.9 )
Volume Invert Avail.Storage Storage Description
#1 14.00' 8,170 cf Custom Stage Data Listed below
Elevation Inc.Store Cum.Store
(feet) (cubic -feet) (cubic -feet)
14.00 0 0
15.00 3,878 3,878
16.00 4,292 8,170
lice Routing Invert Outlet Devices
#1 Primary 15.00' 5.0' long x 0.5' breadth Broad -Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00
Coef. (English) 2.80 2.92 3.08 3.30 3.32
Primary OutFlow Max=2.55 cfs @ 13.17 hrs HW=15.32' (Free Discharge)
t1=Broad-Crested Rectangular Weir (Weir Controls 2.55 cfs @ 1.61 fps)

ExA,-npLE eAv DFM"r&Anry 6 "Pacep ap
13 y 51Z' rime- CL.ow
101831 WWB Basin 1- Post -Used for Validation of Level Type 11124-hr 10yr Rainfall=6.90"
Prepared by {enter your company name here)
W
U
3
0
M
1
Pond 5P: Infiltration Basin
NOTr , l arER PEAK Flow Dt.S,t
I0 ATT£N(AAPaN • V&M1Y 15
(nlacuO"EP Ar c.X�VE- .510 1oER
LLP B � oN 4vrSE2vRT�v= VAWE
Hydrograph Frinrn SupP�ent�rrC. RzL �� yR,. ~cow,
❑ Inflow
2.87 � ❑ Primary
Inflow Area=4.014 ac
Peak Elev=15.32" 2.55cfs
Storage=5,-235 cf - - -
0 1 2 3 4 5 6 7 8 9 1011 121314151617181920 21222324
Time (hours)
qR
��' l .1?0p9

WWB 101831 - Infiltration Basin Barracks Rd. Basin
Drainge Area(Sf)
174869
Imp Area (sit
21932
(A) Drainage Area (Act
4.014"
(Is)Imp Fraction
0.13
(Ro)Raihfall Depth Per State SW P(in)
1.5
Step 1: Determine Runoff Volume
Simple Method
a.
6 V=3630xRDxR xA
Post
Step 2: Determine Surface Area- Min.
= Rv (post)=.05+.9'.4
Rv (pre)=.05+.9'0
V=3630 '3.7'0.66'.4237
(K) Infiltration Rate (irVhr) 0.8
(1)Intended Uays to Iniltrate (days) it 2
a. A — /V = A=3454/(2'(3.94'2))
Step 3. Determine Dimensions
Storage Elevation 15.00 Flow Spl'mer - Inlet Elevation
Elevation 14.00 Flow Sputter - Bypass Flow Outlet Elev
litter - Outlet to Basin Elev. 14.20 Too of Berm Elevation
Storage Depth
Surface Area Required (Avg of Top and Botom SA)
Top Width ® Storage Elev
Bottom Width
Actual Width Used at Storage Elev
Actual Width Used at Bottom Elev
Designed By. BMD
Date: 3r9/2009
0.16
0.05
V (post)= 3560 cf
Min. Treatment Vol(Post - Pre= 3560 of
Treatment Vol in Ac-in 0.98 ac-in
Min SA of Basin = 1113 si
Area Top of Berm I 5084'sf
Avg Area of Berm to Bottom l 4292 at
1.00
3560
Target Area
3560 at
53 Top Length 0 Storage Elev,
74.2
Area Top of Storage =
4256 of
47 Bonom Length
68.2
Area Bottom of Storage=
3500 of
56 Actual Length Used at Storage Elev
76
Avg Surface Area =
3878 of
50 Actual Length Used at Bottom Elev
70
Volume of Basin (Depth -SA) =
3878 ci
4. Calculation of Volumetric Flow Rate of Infitration and Drawdown
0 from infiltration: '0 is actually the Darcian Flow Rate
Q=A (K) C..wersian=cfs
Example Calculation of Q: Surface Area=4556 sf (K)=3.94 in/hr
3J4in Ift Ihr
4556af 0.42cfc
hr 12io 3600s
Drawdown Time for Treatment Volume
ETampleCalculatiol: Q=0.42cfs V=3458cf
V _�, _;458ft' Is lhr=21hrs=.089daps
Q I 0.42 ft' 3600s
Area (off (K) ingir 0 (infiltration) = 0.06 cis
3500 0.8
Drawdown Time for Design Vol
Volumecf 0 Hours Da e
3878 1 0.06 1 16.6 0.69

101831 WWB Basin 1- Pre
name here}
Subcatchment 1S: Pre -development
Type 111 24-hr Rainfall=3.70"
Runoff = 0.06 cfs @ 15.19 hrs, Volume= 0.037 af, Depth> 0.11"
Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs
Type III 24-hr Rainfall=3.70"
Area (sf) CN Description
174,869 45 Woods, Poor HSG A
174,869 Pervious Area
Tc Length
Description
48.1 300 0.0200 0.10 Sheet Flow, sheet flow
Woods: Light underbrush n= 0.400 P2= 3.70"
16.7 500 0.0100 0.50 Shallow Concentrated Flow, shallow
Woodland Kv= 5.0 fos
64.8 800 Total

101831 WWB Basin 1- Pre
Prepared by {enter your coml
HydroCAD® 8.00 s/n 003562 ©:
0.01 F
0.01
name
Subcatchment 1S: Pre -development
Hydrograph
• :..
Runoff• 1 1
-Runoff Depth>0.11u­---
Tc=64.8 min
I
Type //I24-hr Rainfall=3.70"
-------------------�/�. ------------------- .----------
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Time (hours)
20 21 22 23 24
❑ Runoff

Post -develops
Infiltration Basin
8y, A .- 1700g
Subcat Reach Aon Llnk

101831 WWB Basin 1- Post
Prepared by {enter your company name
HydroCADO 8.00 s/n 003562 © 2006 HydroC.
Type 11124-hr Rainfall=3.70"
Page 2
Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points
Runoff by SCS TR-20 method, UH=SCS
Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method
Pond 5P: Infiltration Basin Peak Elev=14.52' Storage=2,024 cf Inflow=0.28 cfs 0.100 of
Discarded=0.06 cfs 0.057 of Secondary=0.00 cfs 0.000 of Outflow=0.06 cfs 0.057 of

101831 WWB Basin 1- Post Type 11124-hr Rainfall=3.70"
Prepared by {enter your company name here) Page 3
Pond 5P: Infiltration Basin
Inflow Area = 4.014 ac, Inflow Depth > 0.30"
Inflow = 0.28 cfs @
13.24 hrs, Volume= 0.100 of
Outflow = 0.06 cfs @
12.74 hrs, Volume= 0.057 af, Atten= 79%, Lag= 0.0 min
Discarded = 0.06 cfs @
12.74 hrs, Volume= 0.057 of
Secondary = 0.00 cfs @
0.00 hrs, Volume= 0.000 of
Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs
Peak Elev= 14.52' @ 20.12 hrs
Surf.Area= 0 sf Storage= 2,024 cf
Plug -Flow detention time= 248.3 min calculated for 0.057 of (56% of inflow)
Center -of -Mass det. time= 110.4 min ( 1,097.4 - 987.1 )
Volume Invert Avail.Storage Storage Description
#1 14.00' 8,170 cf Custom Stage Data Listed below
Elevation Inc.Store Cum.Store
(feet) (cubic -feet) (cubic -feet)
14.00 0 0
15.00 3,878 3,878
16.00 4,292 8,170
Device Routing Invert Outlet Devices
#1 Discarded 0.00' 0.06 cfs Exfiltration at all elevations
#2 Secondary 15.00' 5.0' long x 0.5' breadth Broad -Crested Rectangular Weir
Head (feet) 0.20 0.40 0.60 0.80 1.00
Coef. (English) 2.80 2.92 3.08 3.30 3.32
Discarded OutFlow Max=0.06 cfs @ 12.74 hrs HW=14.02' (Free Discharge)
t-1=Exfiltration (Exfiltration Controls 0.06 cfs)
Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=14.00' (Free Discharge)
2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs)

101831 WWB Basin 1- Post
Prepared by {enter your company name here}
Pond 5P: Infiltration Basin
Hydrograph
0.29cis
Inflow Area=4.014 ac
k_
Pe6k-Elev=14.52' -
Storage=2,024 cf
m 0.18-
0.1 s
0 0.141 .
AI;
Time (hours)
Type fll 24-hr Rainfall=3.70"
Page 4
oininnnn
16 17 18 19 20 21 22 23 24
❑ Inflow
❑ Outflow
❑ Discarded
❑ Secondary

101831 VWIIB Basin 1- Post Type 1/124-hr Rainfall=3.70"
Prepared by {enter your company name here) Page 5
HvdrnCAD(R) 8.00 s/n 003562 © 2006 HvdroCAD Software Solutions LLC 3/9/2009
Stage -Discharge for Pond 5P: Infiltration Basin
Elevation Discharge Discarded Secondary
(feet)
(cfs)
(cfs)
(cfs)
14.00
0.00
0.00
0.00
14.02
0.06
0.06
0.00
14.04
0.06
0.06
0.00
14.06
0.06
0.06
0.00
14.08
0.06
0.06
0.00
14.10
0.06
0.06
0.00
14.12
0.06
0.06
0.00
14.14
0.06
0.06
0.00
14.16
0.06
0.06
0.00
14.18
0.06
0.06
0.00
14.20
0.06
0.06
0.00
14.22
0.06
0.06
0.00
14.24
0.06
0.06
0.00
14.26
0.06
0.06
0.00
14.28
0.06
0.06
0.00
14.30
0.06
0.06
0.00
14.32
0.06
0.06
0.00
14.34
0.06
0.06
0.00
14.36
0.06
0.06
0.00
14.38
0.06
0.06
0.00
14.40
0.06
0.06
0.00
14.42
0.06
0.06
0.00
14.44
0.06
0.06
0.00
14.46
0.06
0.06
0.00
14.48
0.06
0.06
0.00
14.50
0.06
0.06
0.00
14.52
0.06
0.06
0.00
14.54
0.06
0.06
0.00
14.56
0.06
0.06
0.00
14.58
0.06
0.06
0.00
14.60
0.06
0.06
0.00
14.62
0.06
0.06
0.00
14.64
0.06
0.06
0.00
14.66
0.06
0.06
0.00
14.68
0.06
0.06
0.00
14.70
0.06
0.06
0.00
14.72
0.06
0.06
0.00
14.74
0.06
0.06
0.00
14.76
0.06
0.06
0.00
14.78
0.06
0.06
0.00
14.80
0.06
0.06
0.00
14.82
0.06
0.06
0.00
14.84
0.06
0.06
0.00
14.86
0.06
0.06
0.00
14.88
0.06
0.06
0.00
14.90
0.06
0.06
0.00
14.92
0.06
0.06
0.00
14.94
0.06
0.06
0.00
14.96
0.06
0.06
0.00
14.98
0.06
0.06
0.00
15.00
0.06
0.06
0.00
15.02
0.10
0.06
0.04
Elevation Discharge Discarded Secondary
(feet)
(cfs)
(cfs)
(cfs)
15.04
0.17
0.06
0.11
15.06
0.27
0.06
0.21
15.08
0.38
0.06
0.32
15.10
0.50
0.06
0.44
15.12
0.64
0.06
0.58
15.14
0.79
0.06
0.73
15.16
0.96
0.06
0.90
15.18
1.13
0.06
1.07
15.20
1.31
0.06
1.25
15.22
1.51
0.06
1.45
15.24
1.72
0.06
1.66
15.26
1.94
0.06
1.88
15.28
2.17
0.06
2.11
15.30
2.41
0.06
2.35
15.32
2.66
0.06
2.60
15.34
2.92
0.06
2.86
15.36
3.19
0.06
3.13
15.38
3.47
0.06
3.41
15.40
3.75
0.06
3.69
15.42
4.06
0.06
4.00
15.44
4.37
0.06
4.31
15.46
4.69
0.06
4.63
15.48
5.02
0.06
4.96
15.50
5.36
0.06
5.30
15.52
5.71
0.06
5.65
15.54
6.08
0.06
6.02
15.56
6.45
0.06
6.39
15.58
6.83
0.06
6.77
15.60
7.22
0.06
7.16
15.62
7.63
0.06
7.57
15.64
8.06
0.06
8.00
15.66
8.49
0.06
8.43
15.68
8.94
0.06
8.88
15.70
9.40
0.06
9.34
15.72
9.87
0.06
9.81
15.74
10.35
0.06
10.29
15.76
10.85
0.06
10.79
15.78
11.35
0.06
11.29
15.80
11.87
0.06
11.81
15.82
12.32
0.06
12.26
15.84
12.78
0.06
12.72
15.86
13.24
0.06
13.18
15.88
13.71
0.06
13.65
15.90
14.19
0.06
14.13
15.92
14.67
0.06
14.61
15.94
15.16
0.06
15.10
15.96
15.66
0.06
15.60
15.98
16.15
0.06
16.09
16.00
16.66
0.06
16.60

t . i
MIN loon 17 17 70
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1 VERBO
Legend o 05 , 2Wes Vicinity Map
EARTH TECH I AECOM PAVED Wounded Warrior Barracks
—
---- UNPAVED Camp Lejeune Marine Corps Base
Onslow County, NC

r

.14
OPh

Page 1 of 2
CLJN.CLJN Jurisdictional_wetland_area
SDE Feature Class
Description I Spatial I Attributes
Keywords
Theme: Wetlands Area, Location
Place: Camp Lejeune
Stratum: wetlands, planning, jurisdictional
Temporal: None
Description
Abstract
CUN.CUN.jurisdictional_wetland—area contains polygons representing wetlands
created from the Jurisdictional Wetlands obtained from field survey and
approved by the Corps of Engineers, Wilmington, NC.
Purpose
Provide wetlands identification as it relates to planning, construction siting and
management tasks.
Supplementary Information
CUN.CUN.jurisdictional_wetland—area created from feature class
CUN. CU N. wetland area
New feature class 2006
Status of the data
Complete - Last Reviewed: 10/17/06
Data update frequency: As needed
Time period for which the data is relevant
Date and time: 2005
Description: REQUIRED: The basis on which the time period of content information
is determined.
Publication Information
Who created the data: I&E/EMD/ECON
Date and time: REQUIRED: The date when the data set is published or otherwise
made available for release.
Data storage and access information
File name: CUN.CUN.jurisdictional_wetiand_area
file://C:\Documents and Settings\Ian.Jewell\Local Settings\Temp\metadata3.htm 2/8/2008

Page 2 of 2
Type of data: vector digital data
Location of the data:
• \\mcbclnasOl
\GIS_User_Storage\Lejeune\BLSD\GIS\ECRGCInstallationData\Lejeu ne\Data Requests\:
\081007 Earth Tech\New Personal Geodatabase.mdb
Data processing environment: Microsoft Windows 2000 Version 5.2 (Build 3790)
Service Pack 1; ESRI ArcCatalog 9.1.0.780
Constraints on accessing and using the data
Details about this document
Contents last updated: 20070814 at time 09133300
Who completed this document
Standards used to create this document
file://C:\Documents and Settings\Ian.Jewell\Local Settings\Temp\metadata3.htm 2/8/2008

a.
7a�A �1r� � :'� �'�'�
� a. +� �...L;he.:�
R 4y y
���J L • •Y AX

V
Sewer GfZ45m'^
EARTH TECH I AECOM
Earth Tech
701 Corporate Center Drive, Suite 475, Raleigh, North Carolina 27607
T 919.854.6200 F 919.854.6259 w .earthtech.aecom.com
March 9, 2009
Bryan M. Dick, EIT, PH
701 Corporate Center Dr.
Suite 475
Raleigh, NC 27607
919-854-6252
NC DWQ
Attn: Mr. Steve Pusey
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
Re: RFI for SW8 081113 — WWB Camp Lejeune Dated 2/20/2009
Mr. Pusey,
. 1
0,9
Please find enclosed the amended appendices to the application for stormwater permit
modification for the Wounded Warrior Barracks Site at Camp L.ejeune. I appreciated you
taking the time to review the comments over the phone last week. I have addressed your
comments with the following:
1). As we discussed on the phone, the Care and Hope Center outline has been removed
as it is unclear when and what will happen there in the future. A modification will be
conducted in the future if any changes occur.
2). Again, as we discussed on the phone last week, the building in question is routed to
the adjacent basin due to rainfall being collected via a gutter system and is discharged on
the end of the building that corresponds to adjacent drainage area. The portion of the
parking lot and associated utility boxes that fall with the DA for basin #3 is a part of the
impervious area for DA 3.
/3). Calculations have been provided. The calculations are for the most conservative peak
flow, without attenuation from the infiltration basin. In order to meet the requirements
for the length of the level speader (13 linear feet per 1 cfs of flow), the level spreader
must be designed at a max velocity on the 10 year event of less than 1.0 feet per second.
This is why we did not include the calcs before, as the IY/cfs now controls the velocity
of flow leaving the level spreader for all level spreaders that require a supplement form.
However, I have included the calculations based on the peak flow called out for the 10 yr
on the level spreader supplement, and have shown a validation that the BMP will reduce
those peak flows by including the Hydrocad results for the attenuated flow also. Using
the Qp for the non treated 10 year flow is more conservative, though also moot since the
required length of level spreader is the controlling requirement.

4). C-4 has been updated and corrected with a valid scale.
/ We also amended the drainage area and associated application basin table and
✓ supplements with a corrected DA for basin 3 as a result of our re -visit of the application
and our discovery of an incorrect value for the total DA for basin #3. Any affected
documents have been included in the amended form.
Please contact me with any further questions and comments. I look forward to hearing
from you after your continued review of the application.
Regards, n
Bryan M. Dick, PH

r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colleen H. Sullins
Governor Director
February 20, 2009
Carl Baker, Public Works Officer
Commanding Officer, Marine Corps Base, Camp Lejeune
Bldg. 1005 Michael Rd.
MCB Camp Lejeune, NC 28547
Subject: Request for Additional Information
Stormwater Project No. SW8 070926 Modification
USMCB Camp Lejeune, Wounded Warrior Barracks Site
Onslow County
Dear Mr. Baker:
Dee Freeman
Secretary
The Wilmington Regional Office received a State Stormwater Management Permit
Application for USMCB Camp Lejeune, Wounded Warrior Barracks Site, on November
25, 2008. A preliminary review of that information has determined that the application is
not complete. The following information is needed to continue the stormwater review:
1. On drawing C1-103, grading plan, there is a building labeled as "Care &
Hope Center". Why is this building not included in the calculation of
impervious area? Please explain and revise if necessary.
2. On drawing C-4, which shows drainage areas, it appears that there may
be portions of existing building areas in drainage sub -basin # 3. Why is
this building area not included in the calculation of impervious area?
Please explain and revise if necessary.
3. Please provide calculations for level spreader sizing. It should be based
on non -erosive flow for a 10-year storm. Please reference the NOAA
charts for rainfall data near the Sneads Ferry, NC. Please revise level
spreader supplement accordingly.
4. It appears that drawing C-4 is not the scale that is marked on the drawing.
Please check and revise if necessary. I believe it is actually 1 "=100'.
5. Please remember that a change to one number may have a domino effect
on other numbers. Please check all plans, calculations and forms and
make changes as needed.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received in this Office prior to March 20,
2009 or the application will be returned as incomplete. The return of a project will
necessitate resubmittal of all required items, including the application fee.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: v .notvalerquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
naturally

Carl Baker, Public Works Officer
February 20, 2009
Stormwater Application No. SW8 070926 MOD
If you need additional time to submit the information, please mail, email or fax your
request for a time extension to the Division at the address and fax number at the bottom
of this letter. The request must indicate the date by which you expect to submit the
required information. The Division is allowed 90 days from the receipt of a completed
application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter, please feel free to call
Steve Pusey or me at [phone].
Sincerely,
Georgette Scott
Stormwater Supervisor
Surface Water Protection Section - DWQ
GDS/sgp: S:\WQS\STORMWATER\ADDINFO\2009\070926.feb09
cc: Bryan Dick, EIT, PH — Earth Tech, Raleigh, NC
Steve Pusey
Wilmington Regional_Offic
Page 2 of 2

5 Co 6 0"7 Oq 2(n mob
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Checklist for Completeness Review of Stormwater Applications
✓ L s cJ � rvl
Each application for which a "Completeness Review" is needed will have this checklist printed on
yellow paper to distinguish it from other applications to be reviewed. ✓bey w tip, C
J LS
❑ Read the narrative and application to determine the type of project, i.e., residential vs.
commercial, subdivision vs. single lot, high density, low density, offsite, redevelopment, and
determine what documentation needs to be provided.
❑ Make sure that all required forms, supplements, O&M's, deed restrictions, signature
authorizations, etc., are included and contain original signatures.
❑ If low density, make sure the BUA calculations include any common areas, clubhouse areas,
etc., and do a quick math check for addition errors.
❑ Do a quick consistency check of the numbers used in the calculations vs. the numbers
reported on the application. For multiple BMP's pick one or two to check.
❑ Ownership issues? Make sure the correct person has signed the application. If it's a
corporation or LLC, print off the NCSOS information sheet and latest annual report. Make
sure the person who signed is listed on the annual report with his/her correct title, or make
sure a signature authorization letter has been provided.
❑ Make sure 2 sets of plans have been submitted, and that they include grading, layout (with
dimensions for all proposed BUA) and details.
Are the Wetlands delineated on the plans? Y N By whom?
e If the project drains to SA waters, make sure a U S topo map with the site, the receiving
waters and the ''% mile radius clearly shown to scale, is provided.
❑ For high density projects, make sure the correct design storm is used, based on the receiving
stream classification and the projects proximity to SA waters.
❑ Make sure appropriate details are provided such as roads, cul-de-sacs, curbing, sidewalk,
BMP's, level spreaders, vegetated filter strips, curb outlet swales, etc. Two of the most
common errors are that sidewalk is indicated on the plans, but not included in the BUA calcs
or shown with the road detail, and the road width used in the BUA calculations is less than
that shown on the road detail.
Are there any issues within the 575 ft ORW AEC?
If high density, make sure the plans and calculations are signed, sealed and dated.
If the project involves the subdivision of property or has outparcels, make sure a copy of the
Proposed Declaration of Covenants and Restrictions in legal format with all required
statements is provided, or that the appropriate standard deed restriction template, signed and
notarized, is provided.
❑— Make sure that a Soils Report for all projects is provided, to determine if the required
separation to the SHWT is provided.
B For multiple HD systems & curb outlet swales, make sure a drainage area map is provided.
If the application is substantially incomplete, give the entire file with the check to admin (Jo
Casmer) to be returned to the applicant. Jo will keep copies of the return letters, application &
check.
❑ If the application lacks only a few minor items such that it can be made complete within 24
hours, you can email the consultant and request the information. Hold onto the package for
24 hours. If the information isn't received within 24 hours, give the application to Jo to return.
For Offsite projects:
The Designer's Certification for the offsite system has been submitted.
The deed restrictions have been recorded and a copy submitted.
The offsite system is in compliance with its permit.
Make sure the lot size hasn't changed from what was approved under the Master Plan and
that the correct lot number is referenced on the supplement form.
For Infiltration projects:
Soils report to determine SHWT, soil type and expected infiltration rate is provided.
Has Vincent conducted the site investigation? If Yes, date?
For infiltration projects, the maximum 2 acre inches of volume in any single system has not
been exceeded.
For Wet Ponds projects:
❑ Permanent pool to be located no lower than 6" below the estimated SHWT. Otherwise, the
incoming groundwater must be quantified and evaluated; the storage volume must be
verified; and the outlet needs to be evaluated for free drainage to the receiving waters under
SHWT conditions.
S:\WQS\STORMWATER\FORMS\COMPLETENESS REVIEW 0\ /E--I?,

Q
AuDf—
Pp Ct,G c V- II
l 1l �G` tl Sk � f'/bl

Michael F. Erelcy, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleco 11. Sullins Director
Division of Water Quality
November 20, 2008
Carl Baker, Public Works Officer
Commanding Officer, Marine Corps Base, Camp Lejeune �\
Bldg 1005 Michael Rd. el
MCB Camp Lejeune, NC 28547
Subject: Application Return
Project Name: USMCB Camp Lejeune, Wounded Warrior Barracks Site
County: Onslow County
Project Number: SW8 070926 Modification
Dear Mr. Carl Baker:
Your recent State Stormwater Management Application and check #390442 for the
$505.00 application fee are being returned because the application lacked the necessary basic
elements to accept it for review. The plans and any other documentation that were submitted
have been discarded or recycled, as appropriate. Please address the following noted
deficiencies and provide the requested information:
/•
Sealed design calculations.
•
Please note that the permit is for the 17.8 acres and although the existing supplements,
calculations, and plan details may be reused; the site plan, drainage area plan, and
bua/drainage area totals on the application and calculations must be revised to include
the proposed infiltration basin and the existing two ponds. /
�•
Report the drainage areas for all bmps in the permit on the application section III (8), ✓
including the two existing plus the one new infiltration basin. The existing drainage area
for one (1) and/or two (2) must be revised to deduct the drainage area for the new
proposed infiltration basin. Please number the drainage areas, ponds and basins
S�
consecutively, with each number used only once.
Please delineate the for
�_v
project area on the plans this permit, including the existing two
�
bmps plus the new proposed basin area. Please delineate the drainage areas for each
bmp on this plan, including the existing two bmps and the new proposed basin.
�•
Please report three drainage areas on the application section III (7), including the 2
ze
existing plus new basin.
Provide 4 inch of clean sand on the plan detail and the supplement.
Delineate wetlands on the plans or state that none exist on the project area.
•
The results of a soils investigation, reporting the Seasonal High Water Table elevation
for all projects, and in addition for infiltration projects, reporting the soil type, and
expected infiltration rate. Although the Division's soil scientist, Vincent Lewis, visited
the site, there was'no soil report submitted with the package.
/•
If you resubmit the requested items within 24 hours, the package will be accepted.
Otherwise, the -application fee is returned and will required submittal of all required
documents.
•
Please reference the application review checklist to help in completing the application
package. The checklist is on the website at:
Please resubmit the permit application package to the address below. Note that the 90-day
statutory permit review time begins upon receipt of a complete application. If you have any ,,
questions, please call me at [phone]. N hCaro ina
atura /Y
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: www.ncwateraualilv.ore Fax [phone]
An Equal OpportunilylAffrmative Action Employer —50°/ Recycled110% Post Consumer Paper

ENB/mjn: S:\WQS\STORMWAT\RETURN\070926mod nov08
CC: Bryan M. Dick, Earth Tech, 919-854-6252, fax:[phone]
David Towler, Camp Lejeune
Wilmington Regional Office
M. J. Naugle

7
STORMWATER SUBMITTAL REQUIREMENTS
INFILTRATION/EXFILTRATION SYSTEMS
Basins and Trench
Objective
A. Collect all runoff from all BUA (proposed and/or existing and/or offsite) as the case may be,
by any means including piping or swales, and direct it to the infiltration system.
B. Check the proposed basin/ trench design to make sure it meets or exceeds the minimum
design criteria for design storm, volume and drawdown.
II. What makes up a complete infiltration basin / trench application package?
A. Two sets of sealed, signed & dated layout & grading plans with appropriate details.
B. Completed application with supplement(s), SWU-101, SW401-Infiltration Trench, SW401-
Infiltration Basin, and inspection and maintenance agreements.
C. Deed restriction document, if applicable. (subdivisions & projects with out parcels)
D. Sealed, signed & dated calculations.
E. A soils report containing information in regard to the soil type, boring locations, seasonal high
water table elevation and expected infiltration rate.
F. Chlorides test results must be provided if the project is within''/2 mile of SR waters (Phase II).
(This is only required to test out of SR water treatment requirements)
Ill. BIMS entry (for DWQ use only)
Enter & track application acknowledged date, review date, add info requested/received dates, permit
issue dates, and drainage area info. Best done after the add info letter is written and before sending
permit up for signature.
IV. Shell documents (for DWQ use only)
Permit shells: s:\wqs\stormwater\shell\shighcominbasin
S:\wqs\stormwater\shells\highcomintrench
s:\wqs\stormwaterkshells\highsubinbasin
s:\wqs\stormwater\shells\highsubintrench
Calculations: s:\wqs\stormwater\excel spreadsheets\inbasin
s:\wqs\stormwater\excel spreadsheets\intrench
V. Review Procedure- look for consistency between the various elements of the package- application,
plan and calculations.
A. APPLICATION
1. Original signatures are required. Photocopied signatures cannot be accepted.
2. A completed infiltration basin or infiltration trench supplement, one for each proposed
system. A signed, dated and notarized Inspection and Maintenance Agreement for
each proposed system with an original signature.
3. The elevations, areas and volumes reported on the supplement match up to the
numbers used in the calculations and shown on the plan details.
4. Built -upon areas are reported in square feet in Section 111.6.
5. Receiving stream name and classification.
6. Section 111.6 is filled in -cannot be left blank. One column must be filled in for each
proposed infiltration basin or trench.
7. If the applicant is a corporation, partnership or LLC, look it up on the Secretary of State
Corporations Database. Make sure corporation is spelled correctly (capitalization and
punctuation matter) and that the person signing the application is at least a vice-
president in the corporation, a General Partner in the partnership, a member in a
member -managed LLC, or the manager of a manager -managed LLC. Need
documentation to support if the Articles of Incorporation do not list the members or
managers of the LLC. If an agent signs, then a letter of authorization is needed from the
president, vice president, general partner, member or manager.
8. For subdivided projects, a signed and notarized deed restriction statement must be
provided.
9. Soils report with the SHWT, Soil type and expected infiltration rate.

I
Infiltration Basin & Trench, cont.
B. CALCULATIONS
1. The basin or trench must draw down within 5 days. Spray irrigation is not acceptable as
the sole means of drawdown.
2. The design storm is 1.5" if the project is subject to Phase II or is sited within''/2 mile of
and draining to SA waters. The design storm for projects subject to Phase II sited
within '% mile of and draining to SR waters must treat the difference between the pre
and post development conditions for the 1-yr 24-hr storm. Otherwise, use 1" design
storm.
3. Report the bottom surface area.
4. Report the surface area at the overflow elevation.
5. Show the calculation for the minimum required volume.
6. Provide a table of elevations, areas, incremental volumes and accumulated volumes to
demonstrate that the minimum required volume has been provided.
7. Calculations are signed, sealed & dated.
8. Report the Drainage Area and Built -upon area for each basin or trench.
9. The seasonal high water table must be at least 24" below the proposed bottom
elevation of the system. For Phase II projects, at least 12" of this must be in naturally
occurring soils.
10. All runoff in excess of the design storm must bypass to a vegetated filter prior to
entering the basin or trench. If the system is designed to store a larger design storm
(generally 2-3 times the minimum), the requirement for an offline bypass can be waived.
Please contact the Division to determine what design storm is appropriate for the
project.

Infiltration Basin & Trench, cont.
C. PLANS - Plan sheets should be kept to a minimum. For small commercial single basin
projects, the plan set could consist of only 2 or 3 sheets, layout, grading and details. For
larger projects, show as much information as possible on as few sheets as possible, without
cluttering them up.
1. Development/Project Name,
2. Engineer name and firm.
3. Legend
4. North Arrow
5. Location Map with nearest intersection of two major roads shown. Major road is any 1,
2, or 3 digit NC, US or interstate highway.
6. Scale- standard engineering scale, no off-the-wall stuff.
7. Date
8. Revision number and date, if applicable.
9. Original contours, proposed contours, spot elevations, finished floor elevations, pipe
inverts, swale inverts, etc.
10. Existing drainage (piping, swales, ditches, ponds, etc.), including off -site. Include a map
delineating the offsite drainage areas.
11. Property/Project boundary lines, bearing & distances.
12. Mean High Water Line or Normal High Water Line, if applicable.
13. Drainage easement locations shown on the plans along with their width.
14. Wetlands delineated, or a note on the plans that none exist. Provide a copy of the
wetlands delineation map signed by the Corps of Engineers, or have the applicant
include a copy of the unsigned delineation map submitted to the Corps. Infiltration
systems may not be located in wetlands unless a permit to fill those wetlands has been
obtained and the soils meet the SHWT and hydraulic conductivity requirements.
15. Details for the roads, parking, cul-de-sacs, including sidewalk width, radii, dimensions &
slopes.
16. Apartment / Condo development- provide a typical building footprint with dimensions,
and note all concrete and wood deck areas.
17. The drainage area for each basin or trench is clearly delineated and numbered to match
up to the calculations and supplement. Drainage area delineation is best done as a
separate plan sheet.
18. A basin section detail showing bottom and storage elevations, 3:1 side slopes. The side
slopes of an infiltration basin are not restricted to vegetation. They may be hardened
with rock, timber, concrete, decorative brick, etc.
19. A trench section detail with the perforated pipe diameter, filter fabric wrapped around
the pipe and around the trench, trench height and width, rock fill type.
20. If using a pre-fab chamber structure, provide details of the chamber, including model #,
length, width, chamber volume and number of chambers being used.
21. A bypass structure detail is provided showing a trash rack with :56" square openings,
and the necessary bypass weir or pipe elevation. Several types of bypass structure
designs are acceptable.
22. Dimensions for each line and arc formed by the bottom contour of an infiltration basin.
23. All runoff in excess of the design storm must pass through a vegetated filter prior to
being discharged into the receiving stream. The filter must be 50' long for SA waters
and 30' long for non -SA waters.
24. All infiltration systems must be located at least 50' from the MHW line of surface waters.
25. Vegetation is specified for basin slopes not being hardened. Weeping Love Grass is not
suitable as a permanent vegetated cover for side slopes.
26. All roof drainage must be directed to the system. Show the roof drain collection piping
on the plans. This is especially necessary for projects where the buildings back up the
property lines where roof drainage may leave the site prior to going through the system.
27. Monitoring wells may be required on a case -by -case basis.

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-------------

J

EARTH TECH I AECOM
Earth Tech
701 Corporate Center Drive, Suite 475, Raleigh, North Carolina 27607
T 919.854.6200 F 919.854.6259 www.earthtech.aecom.com
October 30, 2008
Bryan M. Dick, EIT, PH
701 Corporate Center Dr.
Suite 475
Raleigh, NC 27607
919-854-6252
NC DWQ
127 Cardinal Dr. Ext.
Wilmington, NC 28405
gECEIVISr)
NOV 0 3 2008
P�
Re: MCB Camp Lejeune Wounded Warrior Barracks Site
Modification to Stormwater Permit No.SW8 070926, Issued Nov. 16, 2007
Sirs, ��j�io�k�{Z��'�
Please find enclosed an application foranodification to the above mentioned
stormwater permit. Also enclosed is a check for the permit modification and two copies
of the original permit for your reference. The final site layout and grading plan are
included as requested in the original permit.
The permit modification is needed to add an additional small infiltration basin to the
south of the site along the driveway entrance due to a request from the base to move the
entrance driveway 100' south.
Please give me a call at 864-506-1465 or Bill Jenkins, PE at 919-854-6228 if you have
any questions or need any additional information.
Sincerely
Bryan M. Dick, PH

DIVISION OF WATER QUALITY
INFILTRATION SYSTEM INVESTIGATION
Complete and�email this form to [e-mail]. If there are more than 7 areas to be tested,
attach a second sheet.
Scheduled Site Visit Date: 1.0/30/2008 Time: 10:00
Project Name: USMC Camp Leieune- Wounded Warrior Barracks Site
County:_Onslow_
Street Address: Hospital Corps, Blvd.,
Directions from the nearest intersection of two major roads: In Jacksonville go
east on NC 24 (Lejeune Blvd) to Camp Lejeune main gate.Turn Right onto
Holcomb Blvd. Take first right onto Brewster Blvd. Proceed approx. 1 mile then
turn right onto Hospital Corps Blvd. Project site is left on future Barracks Rd.
>1 acre being disturbed? ®YES ❑NO CAMA Major required? ❑YES ❑NO
Consultant Name: Bryan Dick Phone: [phone]
Consultant Firm Name: EARTH TECH
Bore Number
1
2
3
4
5
6
7
a Existing Ground Elevation
15
b Proposed Bottom Elevation
c Difference a minus b
d Add 2 ft. Min. Bore Depth)
e Hardpan Depth?
f Infiltration Rate OK?
g) Approx. Elev. Of SHWT
Z
h Max. lowest bottom elev.
Com
-i7 X
Required Attachments:
1. Legible vicinity map.
2. Complete Soils Report.
3. PDF formatted site plan with the boring locations to be tested. Site plans should
be emailed or hand -delivered only. Illegible faxed maps will not be accepted.
All proposed infiltration areas and existing, active utility lines located within the proposed
basin/trench must be marked and flagged. If these areas are not flagged, the Soils Scientist
reserves the right to decline to do the investigation. If the proposed infiltration system will be
located in an area of existing pavement and there is no open area nearby, equipment capable of
breaking through the impervious layer must be provided. The soils investigation does not take

the place of a soils report prepared by an appropriate professional. The Soils Scientist will only
verify the soil conditions that are reported in the Soils Report,' and make a determination as to
the suitability of the site to meet the infiltration design requirements under NCRC 2H.1006, and
assumes no liability should the system fail.
S:\WQS\STORMWATER\FORMS\infiltration site visit.for Revised 8.07

DIVISION OF WATER QUALITY
INFILTRATION SYSTEM INVESTIGATION
Complete and email this form to [e-mail]. If there are more than 7 areas to be tested,
attach a second sheet.
Scheduled Site Visit Date: 10/30/2008 Time: 10:00
Project Name: USMC Camp Leieune- Wounded Warrior Barracks Site
County:_Onslow_
Street Address: Hospital Corps, Blvd.,
Directions from the nearest intersection of two major roads: In Jacksonville go
east on NC 24 (Lejeune Blvd) to Camp Lejeune main gate.Turn Right onto
Holcomb Blvd. Take first right onto Brewster Blvd. Proceed approx. 1 mile then
turn right onto Hospital Corps Blvd. Project site is left on future Barracks Rd.
>1 acre being disturbed? ®YES ❑NO CAMA Major required? ❑YES ❑NO
Consultant Name: Bryan Dick Phone: [phone]
Consultant Firm Name: EARTH TECH
Bore Number
1
2
3
4
5
6
7
a Existing Ground Elevation
15.0'
b Proposed Bottom Elevation
14.0'
c Difference a minus b
1.0'
d Add 2 ft. Min. Bore Depth)
3.0'
e Hardpan Depth?
f Infiltration Rate OK?
Y
Approx. Elev. Of SHWT
11.5'
h Max. lowest bottom elev. \,
93.5"\
Comments
Required Attachments:
1. Legible vicinity map.
2. Complete Soils Report.
3. PDF formatted site plan with the boring locations to be tested. Site plans should
be emailed or hand -delivered only. Illegible faxed maps will not be accepted.
All proposed infiltration areas and existing, active utility lines located vithin the proposed
basin/trench must be marked and flagged. If these areas are not flagged, the Soils Scientist
reserves the right to decline to do the investigation. If the proposed infiltration system will be
located in an area of existing pavement and there is no open area nearby, equipment capable of
breaking through the impervious layer must be provided. The soils investigation does not take

SOIL & SITE EVALUATION - STORMWATER BASINS
Wounded Warriors Barracks
Camp LeJeune
Jacksonville, North Carolina
TCG Job # 7354
Prepared For:
Mr. Brian Dick, PH
Earth Tech I AECOM
701 Corporate Center Drive, Suite 475
Raleigh, NC 27607
Prepared By:
The
Cateno,
m Group
The Catena Group, Inc.
410-B Millstone Drive
Hillsborough, NC 27278
Tel [phone] Fax [phone]
October 23, 2008

INTRODUCTION
The Marine Corps Base at Camp Lejeune plans an expansion at the Wounded Warrior Barracks.
As part of this expansion, several stormwater infiltration basins are being considered to infiltrate
runoff from adjacent impervious surfaces. As part of the application process, a soils
investigation detailing soil type, infiltration rate, and depth to seasonal high water table is
required. The Catena Group, Inc (TCG) has been retained to perform the soil investigations.
INVESTIGATION METHODOLOGY
Prior to the field investigation, the Onslow County Soil Survey was referenced to get an
overview of the possible soil series located in the study area. Around the site, there are three
mapped units (Table 1). Figure 1 presents the mapped soil series and the general locations of the
proposed infiltration basins where soil borings and infiltration tests were performed.
Table 1 - Soil Series, Map Unit Symbol, and Taxonomic Class
Map Unit Symbol
Soil Series/Map Unit Name
Taxonomic Class
BaB
Ba meade
Thermic Arenic Ha ludults
BmB
Ba meade — Urban land Complex
MaC
Maryn
Thermic Typic Kanha ludults
Mk
Muckalee
Thermic Typic Fluva uents
The field investigation was performed on October 16 and 21, 2008. Soil borings were made with
a hand -turned auger in the vicinity of the proposed infiltration basins. Observations of the
landscape (slope, drainage patterns, past use, etc.) as well as soil properties (depth, texture,
structure, seasonal wetness, restrictive horizons, etc.) to a depth > 60 inches, when possible, were
recorded. Soil color was determined with a Munsell Soil Color Chart.
The rate of water entry into a soil is referred to as the infiltration rate. The infiltration rate into a
soil decreases with time mainly due to an increase in the soil water content and a decrease in the
hydraulic gradient. As infiltration continues, the rate of water entry into the soil reaches a
constant value (steady state condition), which is considered to be the same as the saturated
hydraulic conductivity (KSAT) of the soil. The KSAT was measured in the field and used to
characterize the infiltration rate for the proposed infiltration basin.
KSAT measurements were performed at the proposed infiltration basin using a constant -head
permeameter (Amoozemeter). Before any readings were recorded, the Amoozemeter was
allowed to equilibrate, typically 15-20 minutes.
Based on conversations with the designer of the proposed infiltration basins, construction of the
basin would remove approximately 6 inches of topsoil. As such, the KSAT measurements were
performed around a depth of 12 inches in order to estimate the infiltration rate at the new soil
surface. The rate was also measured at an approximate 2-foot depth to ensure that there was a large
enough window to allow lateral flow away from the basins.

RESULTS
Soil Type
All of the soil was in a natural state and with fairly similar horizons except for Site 4, which had
8 inches of fill material and the structure of subsurface horizons appears to have been adversely
altered due to some surrounding cut and fill.
Table 2 presents each boring with a soil series determination. Determination of soil series was
made through a comparison of soil boring descriptions to the Natural Resources Conservation
Service (MRCS) Official Series Description (OSD) for the soil series that were mapped by the
NRCS for this site.
Depth to Seasonal High Water Table
The depth to the seasonal high water table (SHWT) was noted at each boring based on
redoximorphic features, the presence of saturated soil, and best professional judgment.
Table 2 - Soil Series Determination and Depth to SHWT
Boring #
Soil Series Determination
SHWT Determination
inches below surface
1
Ba meade
51
2
Ba meade
33
3
Ba meade
22
4
Ba meade
22
5
Maryn
23
6
Muckalee
11
7
Marvyn
27
8
Maryn
35
Infiltration Rate
Saturated hydraulic conductivity tests were performed at each of the proposed infiltration basin
sites and the results for each test are shown below in Table 3. Since soil is inherently non -
homogeneous, field tests can often misrepresent the aerial hydraulic conductivity of a soil. In
particular, field tests underestimate the saturated hydraulic conductivity of clayey soil and
overestimate it in sandy soils. As a result of this misrepresentation, a "moderation factor" is
suggested to convert point saturated hydraulic conductivity to aerial saturated hydraulic
conductivity for each proposed infiltration basin. Since the soil is typically fine sand or loamy
sand, a moderation factor of 0.75 was used to correct for the potential of overestimating the
infiltration rate.
Table 3 presents the saturated hydraulic conductivity geometric mean for each infiltration basin
as well as a moderation factor to get an area infiltration rate for each proposed infiltration basin.

Table 3 - Results of Saturated Hydraulic Conductivity Tests and Geometric Mean
Soil Type
Test
Location
Test Depth
(in)
Measured
KSAT(in/hr)
Geometric
Mean (in/hr)
75%
Geometric
Mean in/hr
Ba meade
1 C
12
5.0
2.76
2.07
Ba meade
1D
12
6.1
Ba meade
2A
12
1.3
Ba meade
2C
12
1.5
Ba meade
IA
24
5.5
6.39
4.79
Ba meade
113
24
9.2
Ba meade
2B
24
10.1
Ba meade
2D
24
3.6
Maryn
7B
12
1.4
1.48
1.11
Maryn
7C
12
0.2
Maryn
8A
12
3.0
Maryn
8B
12
4.7
Maryn
7A
1 24
1 0.2
0.80
0.60
Maryn
7D
24
2.3
Maryn
8C
24
0.3
Maryn
8D
24
2.8
As shown in Table 3, all proposed basin have an infiltration rate that is greater than the required
minimum of 0.52 inch/hour.
CONCLUSIONS
The findings presented herein represent TCG's professional opinion based on our site and soils
evaluation. This report is provided to assist in the application for the infiltration basin by
providing the soil information. North Carolina DWQ must issue the final permit. Any
concurrence with the findings in this report would be made at that time.

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,
Ir, C. Mk�(j, III / , I( y.•--
(ci,I_I BmB
a i
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Proposed Infiltration Basins
�= J BOB �. �`. BaB = Baymeade fine sand
J !I� BmB = Baymeade - Urban land complex
Mac = Marvyn loamy fine sand
I 0
r C Mk = Muckalee loam
w = Water
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The
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Group
F19Ufe
Client:
EARTHTECH /AECOM
Wounded Warrior Barracks
Proposed Infiltration Basins
Onslow County, North Carolina
Date:
October 2006
Scale:
o ISO 300E«1
'
Job No.:
7354

APProv,,ec( b y Vir ccve La,"l Is — 1013c>
DIVISION OF WATER QUALITY
INFILTRATION SYSTEM INVESTIGATION
Complete and email this form to [e-mail]. If there are more than 7areas to be tested,
attach a second sheet.
Scheduled Site Visit Date: _10/30/2008 Time: 10:
Project Name:USMC Camp Leieune- Wounded Warrior Barracks Site
County:_Onslow=
Street Address: Hospital Corps, Blvd.,
Directions from the nearest intersection of two major roads: In Jacksonville go
east on NC 24 (Lejeune Blvd) to Camp Lejeune main gate.Turn Right onto
Holcomb Blvd. Take first right onto Brewster Blvd. Proceed approx. 1 mile then
turn right onto Hospital Corps Blvd. Project site is left on future Barracks Rd.
>1 acre being disturbed? ®YES ONO CAMA Major required? ❑YES ❑NO
Consultant Name: —Bryan Dick Phone: [phone]
Consultant Firm Name: EARTH TECH
Bore Number
1
2
3
4
5
6
7
a Existing Ground Elevation
15.0'
b Proposed Bottom Elevation
14.0'
c Difference a minus b
1.0'
d Add 2 ft. Min. Bore Depth)
3.0'
e Hardpan Depth?
f Infiltration Rate OK?
Y
Approx. Elev. Of SHWT
h Max. lowest bottom elev.
Com
Required Attachments:
1. Legible vicinity map.
2. Complete Soils Report.
3. PDF formatted site plan with the boring locations to be tested. Site plans should
be emailed or hand -delivered only. Illegible faxed maps will not be accepted.
All proposed infiltration areas and existing, active utility lines located within the proposed
basin/trench must be marked and flagged. If these areas are not flagged, the Soils Scientist
reserves the right to decline to do the investigation. If the proposed infiltration system will be
located in an area of existing pavement and there is no open area nearby, equipment capable of
breaking through the impervious layer must be provided. The soils investigation does not take

the place of a soils report prepared by an appropriate professional. The Soils Scientist will only
verify the soil conditions that are reported in the Soils Report, and make a determination as to
the suitability of the site to meet the infiltration design requirements under NCAC 2H.1000, and
assumes no liability should the system fail.
SAW QS\STORMWATER\FORMS\infiltration site visit.for Revised 8.07

is
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1�j�;
g Mk
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_� ■ �., PAN
r ,
3
■ ■
r,
BmB
' l'a 1� i ' rir
W OL1 4
, &7
f I.
(f
ilJ
C`,
r
Proposed Infiltration Basins
J. BaB = Baymeade fine sand
J J
I
BmB = Baymeade - Urban land complex
� mac = Marvyn loamy fine sand
u r
�r
t7
Mk = Muckalee loam
�w=Water
The
Catena
Group
Figure
A
II
Client:
EARTHTECH/AECOM
Wounded Warrior Barracks
Proposed Infiltration Basins
Date:
October 2008
Scale:
U ,w 300F<e1
Job No.:
7354
Onslow County,
North Carolina

EARTH TECH I AECOM
Earth Tech
701 Corporate Center Drive, Suite 475, Raleigh. North Carolina 27607
T 919.854.6200 F 919,854.6259 www.earthtech.aecom.com
October 10, 2008
Bryan M. Dick, EIT, PH
701 Corporate Center Dr.
Suite 475
Raleigh, NC 27607
919-854-6252
NC DWQ
Attn: Mary Jean Naugle
127 Cardinal Dr. Ext.
Wilmington, NC 28405
NOV 2 5 2008
BY:
Re: USMC — USMC WWB Site Permit Modification SW8 070926
Mrs. Nauele.
Please find enclosed an updated set of plans and application for the WWB . I have
addressed your comments with the following:
I. Calculationss have been sealed
2. The detail for the basin is updated with 4" clean sand.
3. The conflicting drainage areas for the two projects (Greenway and this one) has
been resolved. All runoff within the draingc areas for the WWB has been
treated and the boundaries mark the actual boundary of runoff and ircatinent
measures.
4. Wetlands comments have been added to the plans.
5. It was our impression that we submitted a full soils report. in addition to Vincent
Lewis` site visit sheet. 1 assume that in the copy process, the soil report may
have been left out of the submitted copy. We have included the full soil report
from Caiena.
Please give me it call if you have any questions or comments. 864-506-1465
Thank you for your help,
Bryan M. Dick. PH

EarthTech
A tgCO International Ltd. Company
CLIENT
PROJECT
CALCULATION SHEET
SUBJECT
PAGE _ OF
PROJECT NO.
Prepared By _
Reviewed By _
Approved By _
DATE
WL\111q
DATE
NONE
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Rev. 9/04. scale: 4 sq./inch F051 /General