SW6130403_CURRENT PERMIT_20130424

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW`�j
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ .COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

G°y bm®
NCDENR (MA-8N30
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor, Director Secretary
April 24, 2013
Mr. David A. Heins, Environmental Division Chief
Directorate of Public Works
Fort Bragg
2175 Reilly Road Stop A
Fort Bragg, North Carolina 28310-5000
Subject: Stormwater Permit No. SW6130403
SOF Group Headquarters MISOC (A) PN71224, Fort Bragg
High Density Commercial Infiltration and Bioretention Basin Project
Cumberland County
Dear Mr. Heins:
The Stormwater Permitting Unit received a complete Stormwater Management Permit
Application for SOF Group Headquarters MISOC (A) PN71224 on April 10, 2013. Staff review
of the plans and specifications has determined that the project, as proposed, will comply with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and Session Law 2006-246. We
are forwarding Permit No. SW6130403, dated April 24, 2013, for the construction, operation and
mainterianct; ui the subject project and the stormwater BMPs.
This permit shall be effective from the date of issuance until April 24, 2021 and shall be subject
to the conditions and limitations as specified therein, and does not supersede any other agency
permit that may be required. Please pay special attention to the conditions listed in this permit
regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions,
procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to
establish an adequate system for operation and maintenance of the stormwater management
system, to record deed restrictions, to follow the procedures for transfer of the permit, or to
renew the permit, will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing by filing a written petition with the Office of Administrative
Hearings (OAH). The written petition must conform to Chapter 150E of the North Carolina
General Statutes. Per NCGS 143-215(e) the petition must be filed with the OAH within thirty (30)
days of receipt of this permit. You should contact the OAH with all questions regarding the filing
fee (if a filing fee is required) and/or the details of the filing process at 6714 Mad Service Center,
Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at
www.g COAH.com. Unless such demands are made this permit shall be final and binding.
This project will be kept on file at the Fayetteville Regional Office. If you have any questions, or
need additional information concerning this matter, please contact Bill Diuguid at (919) 807-
6369; or [e-mail].
Wetlands and Stormwater Branch '
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

Mr. David A. Heins, Environmental Division Chief, Directorate of Public Works, Fort Bragg
S W6130403 — SOF Group Headquarters MISOC (A), PN71224, Fort Bragg, NC
April 24, 2013
Sincerely,
William H. Diugid, AICP
for Charles Wakild, PE, Director
Division of Water Quality
By Authority of the NC Environmental Management Commission
cc: SW6130403 File
ec: NC DENR DWQ Fayetteville Regional Office
Derek Westfall, P.E., Engineering Design Technologies, Inc., Marietta, GA.
Page 2 of 2

State Stormwater Permit
Permit No. SW6130403
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
David A. Heins, Environmental Division Chief
Directorate of Public Works, Fort Bragg
SOF Group Headquarters MISOC (A) PN71224
Reilly Street, Fort Bragg, Cumberland County
FOR THE
construction, operation and maintenance of one infiltration basin and one bioretention
basin in compliance with the provisions of Session Law 2006-246 and 15A NCAC 2H
.1000 (hereafter referred to as the "stormwater rules') and the approved stormwater
management plans and specifications and other supporting data as attached and on file
with and approved by the Division of Water Quality and considered a part of this permit.
This permit shall.be effective from the date of issuance until April 24, 2021, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.8 of this permit. The stormwater control has been
designed to handle the runoff from 249,599 square feet of impervious area.
3. The infiltration basin is designed, and must be maintained, to capture and
infiltrate 2.5x the 1.0" design storm in lieu of providing a vegetated filter strip and
bypass.
4. The tract will be limited to the amount of built -upon area indicated in Section 1.8
of this permit, and as shown on the approved plans.
5. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
6. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
Page 1 of 6

State Stormwater Permit
Permit No. SW6130403
7. The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
8. The following design criteria have been permitted for the infiltration and bio-
tention basins and must be provided and maintained at design condition:
El
a
C.
d.
e.
f.
9.
k.
I.
m
0
Bioretention Basin
Drainage Area #1
Drainage Area, acres: 205,168
Onsite, ft : 142,006
Offsite, ft2: 63,162
Total Impervious Surfaces, ft2: 96,703
Onsite, ft : 82,764
Offsite, ft2: 13,939
Design Storm, inches: 1.0
Basin Depth, feet: 1.0
Bottom Elevation, FMSI : 247.0
Bottom Surface Area, ft : 14,789.00
Bypass Weir Elevation, FMSI�: 251.25
Permitted Storage Volume, ft : 14,789.0
Predevelopment 1 year 24 hour:
Post -development 1 year 24 hour:
Type of Soil:
Expected Infiltration Rate, in/hr:
Seasonal High Water Table, FMSL
Time to Draw Down, hours:
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body:
Note I: * underdrains
II. SCHEDULE OF COMPLIANCE
Infiltration Basin
Drainage Area #2
233,917
233,917
0
152,896
152,896
0
1.0
3.80
236.0
4,952.00
239.80
0.40
12.77
Soil Media
WgB HSG A
0.14*
1.51
249
232
1.7
Ut to Big Branch
/ Cape Fear
18-31-24-5-1
„C„
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 times 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 revegetation 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 bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
Page 2 of 6

State Stormwater Permit
Permit No. SW6130403
what actions were taken.
5. The permittee shall submit to the Division of Water Quality an annual summary.
report of the maintenance and inspection records for each BMP. The report
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
6. The stormwater treatment system shall be constructed in accordance with the
approved plans and specifications, the conditions of this permit, and with other
supporting data.
7. 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.
8. 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.
9. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
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.
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
Mayor 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 to any person or entity except after notice to and
Page 3 of 6

State Stormwater Permit
Permit No. SW6130403
approval by the Director. In the event of a change of ownership, or a name
change, the permittee must submit a completed Name/Ownership Change form
to the Division of Water Quality, signed by both parties, and accompanied by the
appropriate documentation as listed on page 2 of the form. The approval of this
request will be considered on its merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
controls must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et. al.
11. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 24st day of April, 2013.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
William H. Diuguid, AICP
for Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No. SW6130403
SOF Group Headquarters MISOC (A) PN71224, Fort Bragg, North Carolina
Stormwater Permit No. SW6130403
Cumberland County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 5 of 6

State Stormwater Permit
Permit No. SW6130403
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Fayetteville Regional Office
225 Green Street, Suite 714
Fayetteville, NC 28301-5043
Page 6 of 6

.'.. .- ... ...DWQUSE ONLY ...T .c.. .., .,: ..
Date Received
Fee Paid
Permit Number
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non -Coastal SW- I-IQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mtPlan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fimn may be photocopied for use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
SOF Group Headquarters
2. Location of Project.(street address):
City:Fort Bragg County:CumberlandLip:28310-5000
3. Directions to project (from nearest major intersection):
Enter off of Murchson Road (Routes 87, 210) onto Bragg Boulavard. Go south on Bragg Blvd 2.5 miles to
Gruber Drive. Turn right on Gruber Drive and go 2.2 miles to Reilly Street. Turn left on Reilly Street and the
site 0.25 miles on the left,
4. Latitude:35° 07' 13" N Longitude:78° 59' 38" W of the main entrance to the project.
IL PERMIT INFORMATION:
1.a.Specify whether project is (check one): ®New ❑Modification
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) and the status of
construction: ❑Not Started []Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stonnwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4.a.Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control: 9.99 ac of Disturbed Area
❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project
issue date and the type of each permit:
oM3
FormSWU-101 Version07.1un2010 Page 1 of

Ill. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the proiect):
Applicant/Organization:Directorate of Public Works (DPW)
Signing Official & Title:Mr. David Heins, Environmental Division Chief (DPW)
b.Contact information for person listed in item la above:
Street Address:2175 Reilly Road Stop A
City:Fort Bragg State:NC Zip:28310-5000
Mailing Address (if applicable):2175 Reilly Road Stop A
City:Fort Bragg
Phone: (910 ) 396-8207
EmaiLdavid.a.heins.civ [e-mail]
State: NC Zip:28310-5000
Fax: (910 ) 907-2420
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (Phis is the
person who owns the property that the project is located on):
Property Owner/I
Signing Official &
b.Contact information for person listed in item 2a above:
Street Address:
Mailing Address (if applicable):
City: State:
Phone: ( ) Fax:
Email:
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/ Organization:Mr. Lee Ward
Signing Official &Title DPW/ Water Management Branch
b.Contact information for person listed in item 3a above:
Mailing Address:Bldg 0-9125, McKellars Road
City:Fort Bragg State:NC Zip:28310-5000
Phone: (910 ) 396-2301 Fax: ( 910 ) 907-2420
Email: lee.p.ward.civ®maiLmil
4. Local jurisdiction for building permits:
Point of Contact: Phone #:
Fonn SWU-101 Version 07Jun2010 Page 2 of 7

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.,
OML F okc SrOR1EnwT1-J PA-rrU
Stormwater runoff will be treated in ttveinfiltration basins. Grass swales will be utilized in areas around the
site within parking areas to convey runoff to the pipe systems that outlet into these proposed treatment
systems. The pretreatment will also be handled in sumps located in the drop inlets and catch basins.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW - 1995 ❑ Ph 11 - Post Construction _
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area: 9.99 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area*:9.99 acres
Total project area shall be calculated to exclude the follozoing the nornml pool of impounded structures, the area
between the batiks of stremus and rivers, the area beloio the Normal High Water (NHW) lime or Mean High Water
(MHW) line, and coastal wetlands landward froru the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHM line nmy
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 57.3
9. How many drainage areas does the project have? 2 (For high density, count 1 for each proposed engineered
stornnoater BMP. For lozo density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
Form SWU-101 Version 07Jun2010 Page 3 of 7

Basin Information' '
Drainage Area PI
Drainage Area E2
Drainage Area _
Drainage Area _
Receiving Stream Name
unnamed trib of
Big Branch
unnamed trib of
Big Branch
Stream Class
C
C
Stream Index Number *
18-31-24-5-1
18-31-24-5-1
Total Drainage Area (sf)
205,168
233,917
On -site Drainage Area (so
142,006
233,917
Off -site Drainage Area (so
63,162
0
Proposed Impervious Area** (so
96703
152,896
Impervious Area** total
47.13
65.36
Impervious" Surface'Area
Draina a Area Pl
Draina e Area P2
Draina e Area
Draina e Area _
On -site Buildings/Lots (so
0
21,540
On -site Streets (so
5,400
15,820
On -site Parkin (so
71,724
71,670
On -site Sidewalks (so
5,640
8,148
Other on -site (so
0
35,718
Future (so
0
0
Off -site (so
13,939
0
Existing BUA*** (so
0
0
'total (so:
96,703
152,896
Stream Class and Index Number can be determined at: http://yortal.rtcdeur.org oel)Avq(ps/csu/classi 'cations
" Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
*** Report only that anwuot of existing BUA that will renmin after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. I -low was the off -site impervious area listed above determined? Provide documentation. From field survey
information include within design documents.
Projects in Union Comity: Contact DiPQ Central Office staffto check iJ'the project is located within a Threatened &
Endangered Species wptershed that may be subject to name s7ringent storrnwater requirements as per NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state storrnwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from http://LiortaLncdenr.org/web/wq/ws/su/bnnp-manual.
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. A detailed application instruction sheet and BMP
checklists are available from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. The complete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at httl2://Vot-taLnccietir.org/web/wq/ws/su/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http://portal.ncdennorg/web/wq/ws/su/statesw/forms does.
1. Original and one copy of the Stormwater Management Permit Application Form. IV
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part VII below)
3. Original of the applicable Supplennent Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
httl2://www.envhelp.org/pages/onestopexpress.litmi for information on the Express program
FormSWU-101 Version 07Jun20 10 Page 4of7

and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/management for
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1h
mile radius signed
the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (sealed,'signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
I. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
I. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements; pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required). , �-
9. Copy of any applicable soils report with the associated SHWT'elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x11" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHWT prior
to submittal, [phone].) /�
10. A copy of the most current property deed. Deed book: Page No:
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item 1a, 2a, and/or 3a per NCAC 21-1.1003(e). The
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http:/ /www.secretary.state.nc.us/Corporations/CSearcli.aspx
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be
provided as an attachment to the completed and notarized deed restriction form. The appropriate deed
restrictions and protective covenants forms can be downloaded from
http://portil.ncdenr.org/web/wq/ws/su/statesw/forms does. Download the latest versions for each
submittal.
In the instances where the applicant is different than the property owner, it is the responsibility.of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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.
Form SWU-101 Version 07Jun2010 Page 5 of 7

V III. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer:Derek Westfall
Cons 6lting Firm: Engineering Design Technologies, Inc.
Mailing Address:1705 Enterprise Way
City:Marietta State:GA Zip:30067
Phone: (770 ) 988-0400 Fax: (770 ) 988-0300.
Email: WWpI. F d+nNC. Mat ACJ = .le Ir r' ukrf 4-11
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section
1, (print or type name of person listed in Contact Information, item 211) 1 , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
lister! in Contact Information, itea ]a) with (print or type name of organization listed in
Contact Information, item la) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Nanne/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: Date:
1, a Notary Public for the State of , County of
do hereby certify that
before me this _ day of
personally appeared
and acknowledge the due execution of the application for
a stormwater permit. Witness.my hand and official seal,
SEAL
My commission
Form SWU-101 Version 07Jun2010 Page 6 of 7

X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item 1 a) Mr. David Heins
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable s� ater rAes und T 15A NCAC 214.1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211.
Signatu
a Notary Public for the State of
do hereby certify that
Date:
County of
personally appeared
before me this _ day of and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-101 Version 07Jun2010 Page 7 of 7

ILFW
4.51
NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
Pat McCrory Tracy E. Davis, P.E. John E. Skvarla, III
Governor Director Secretary
December 2, 2013
Mr. David A. Heins, Environmental Division Chief
Directorate of Public Works --Fort Bragg
2175 Reilly Road Stop A
Fort Bragg, North Carolina 28310-5000
Subject: Stormwater Permit No. SW6130403 — Minor Revision
SOF Group Headquarters MISOC (A) PN71224, Fort Bragg
High Density Commercial Infiltration and Bioretention Basin Project
Cumberland County
MAR 2 1 2014
Dear Mr. Heins:
The Stormwater Permitting Unit received a complete minor revision package to the existing
Stormwater Management Permit for SOF Group Headquarters MISOC (A) PN71224 on
November 1, 2013. Staff review of the plans and specifications has determined that this minor
revision, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC
2H.1000 and Session Law 2006-246. We are forwarding approval of this minor revision dated
December 2, 2013, to Permit No. SW6130403 (issued April 24, 2013), for the construction,
operation and maintenance of the subject project and the stormwater BMPs.
This permit expiration date shall not change and shall be effective from the original date of
issuance until April 24, 2021 and shall be subject to the conditions and limitations as specified
therein, and does not supersede any other agency permit that may be required. Please pay
special attention to the conditions listed in this permit regarding the Operation and Maintenance
of the BMP(s), recordation of deed restrictions, procedures for changes of ownership,
transferring the permit, and renewing the permit. Failure to establish an adequate system for
operation and maintenance of the stormwater management system, to record deed restrictions,
to follow the procedures for transfer of the permit, or to renew the permit, will result in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing by filing a written petition with the Office of Administrative
Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina
General Statutes. Per NCGS 143-215(e) the petition must be filed with the OAH within thirty (30)
days of receipt of this permit. You should contact the OAH with all questions regarding the filing
fee (if a filing fee is required) and/or the details of the filing process at 6714 Mall Service Center,
Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at
www.NCOAH.com. Unless such demands are made this permit shall be final and binding.
This project will be kept on file at the Fayetteville Regional Office. If you have any questions, or
need additional information concerning this matter, please contact Bill Diuguid at
[phone]; or [e-mail].
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 N. 7��One /� 1
Location: 512 Salisbury St. Raleigh, North Carolina 27604 1 � orth Carolina
Phone,. 1 vm 6300 water FAX:[phone] Naturally
Internet. vrxw.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer

Mr. David A. Heins, Environmental Division Chief, Directorate of Public Works, Fort Bragg
SW6130403 Minor Revision — SOF Group Headquarters MISOC (A), PN71224, Fort Bragg, NC
December 2, 2013
Sincerely,
Original Signed by William H. Diuguid
William H. Diuguid, AICP, Plans Reviewer
for Tracy E. Davis, PE, Director
Division of Energy, Mineral and Land Resources
By Authority of the NC Environmental Management Commission
cc: SW6130403 File
ec: Mike Lawyer, NCDENR DEMLR, Fayetteville Regional Office,
Derek Westfall, P.E., Engineering Design Technologies, Inc., Marietta, GA.
Page 2 of 2

Permit No.
(to be provided by DWO)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ili) must be printed, filled out and submitted along with all of the required information.
Project Name SOF Group Headquarters, Fort Bragg, NC
Contact Person Nolman Cubas
Phone Number 404-456-7859
Date 4/1/2013
Drainage Area Number P213, P3 (Pond #2)
II:DESIGNIINFORMATION'..,:.. .,.. ,,., _y; .,m ...,„ .,. „... ...,.. ..
Site Characteristics
Drainage area 233,917.00 d'
Impervious area 152,896,OD 0'
Percent impervious 65.36
Design rainfall depth 1.00 in
Peak Flow Calculations
t-yr, 24-hr rainfall depth 3,06 in
1-yr, 24-hr intensity 0,13 irdhr
Pre -development l yr,24-hr, discharge 0.40 fta/sec
Post -development 1-yr, 24-hr discharge 12.77 fo/sec
Pro/Post 1-yr, 24-hr peak flow control 12.37 ft'Isec
Storage Volume: Non -SA Waters
Minimum design volume required 22,520.00 p
Design volume provided 31,235,00 —fir OK for non -SA waters
Storage Volume: SA Waters
1.5"runoff volume to
Pre -development 1-yr, 24-hr runoff volume itROr
Post-developments-yr, 24-hr runoff volume fita \\ Q••�ES $/O 0
Minimum required volume it
Volume provided
Soils Report Summary •a E T
Soil type WgB HSGA
Infiltration rate 1.51 adhr r ,
SHWi elevation 232.00 fmsl INE�.�
Basin Design Parameters ///� WE$SF�C
Drawdown time 3.00 days OK /III111��
Basin side slopes 3,00 :1 OK 'tA1(3
Basin bottom elevation 236,00 fmsl OK
Storage elevation 239.80 fund
Storage Surface Area 11,504.00 fl2
Top elevation 240.75 fmsl
Basin Bottom Dimensions
Basin length 204.00 ft
Basin width 25.00 it
Bottom Surface Area 4,952.00 it'
Additional Information
Maximum runoff to each inlet to the basin?
1.85
ac-in
OK
Length of vegetative filter for overflow
n/a
It
OK
Distance to structure
650.00
It
OK
Distance from surface waters
650,00
it
OK
Distance from water supply wells)
3,000.00
it
OK
Separation from impervious soil layer
2.20
it
OK
Naturally occuring soil above shwt
2.20
it
OK
Bottom covered with 4-in of clean sand?
y
(Y or N)
OK
Proposed drainage easement provided?
ids
(Y or N)
OK
Capures all runoff at ultimate build -out?
y
(Y or N)
OK
Bypass provided for larger storms?
y
(Y or N)
OK
Pretreatment device provided
Catch Basins with sumps (see plans for details)
Form SW401-Infiltration Basin-Rev.5 11Apr2011 Pads I. 811, Design Summary, Page 1 of 1

I
Permit Number:
f N (to be provided by DWQ)
r' ap WIATFH
b <
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL 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 name
SDF Group Headquarters Facility
Contact name
Derek Westfall
Phone number
770-988-0400
Date
April 1, 2013
Drainage area number
P1
II:` -DESIGN INFORMATION'.
Site Characteristics
Drainage area
205,168 h2
Impervious area
96,703 ft'
Percent impervious
47.1% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
N (Y or N)
1-yr, 24-hr runoff depth
in
1-yr, 24-hr intensity
in/hr
Pre -development 1-yr, 24-hr peak flow
ff3/sec
Post-developflow
ftisec
1111
t'C
P el ost 1- r 24 hr peak control
ft
ft3isec
��``��N
AR
Storage Volume: Non -SA Waters
`�\OQ'��ESS%0•��y
Minimum volume required
14,675.0 fl3
_� 2.' Oy••9 �_
9r
Volume provided
14,789.0 it' OK
— S AL :
Storage Volume: SA Waters
= 3 99
1.5"runoff volume
Pre -develop ment
ft3
�i IfJE ,•P�`
Post -development ellopment1-yr?24hhrrunoff
ft3
� WES`�``�\
Minimum volume required
0 t3
�/y//Y
Volume provided
It3
Cell Dimensions
Pending depth of water
12 inches
OK
Pending depth of water
1.00 ft
Surface area of the top of the bioretention cell
14,789.0 rye
OK
Length:
200 ft
OK
Width:
75 ft
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
0.5 hr
OK
Drawdown time, to 24 inches below surface
1.2 hr
OK
Drawdown time, total,
1.7 hr
In -situ soil:
Soil permeability
0.14 in/hr
Insufficient. Increase infiltration rate or include underdrains.
Planting media soil:
Soil permeability
2.00 in/hr
OK
Soil composition
% Sand (by volume)
85%
OK
% Fines (by volume)
12%
OK
% Organic (by volume)
3%
OK
Form SW401-Bioretention-Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 1 of 2

Permit Number:
(to be provided by D WQ)
Phosphorus Index (P-Index) of media
Basin Elevations
Temporary pool elevation
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting elevation (top of the mulch or grass sod layer)
Depth of mulch
Bottom of the planting media soil
Planting media depth
Depth of washed sand below planting media soil
Are underdrains being installed?
Total: 100%
20 (unitless) OK
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
SHWT elevation
Distance from bottom to SHWT
Internal Water Storage Zone (IWS)
Does the design include IWS
Elevation of the lop of the upturned elbow
Separation of IWS and Surface
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a proposed drainage easement with access
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in the
future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X' in the shaded cell)
Gravel and grass
(flinches gravel followed by 3-5 fl of grass)
Grassed swale
Forebay
Other
Form SW401-Bioretention-Rev.8
June 25, 2010
251.25 fmsl
Y (Y or N) OK
(Y or N)
254 fmsl
inches
252 fmsl
2 It
0 It
Y (YorN)
15 OK
10 OK
1 If
251 fmsl
249 fmsl
2 It OK
N (Y or N)
fmsl
254 ft
0
0
0 Recommend more species,
y (YorN) OK
n (Y or N) Excess volume must pass through filter.
It
n (Y or N) Show how flow is evenly distributed.
y (Y or N) OK
y (Y or N) OK
y (Y or N) OK
y (Y or N) OK
ft/sec
n (Y or N) OK
n (Y or N) OK
y (Y or N) OK
x
x OK
Parts I and II. Design Summary, Page 2 of 2

r�/ a
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will be taken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance 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:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
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,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Frosion 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.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with. clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3
Page 1 of 4

{
BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which
six months after planting.
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sedimentand remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new planting media.
Fonu SW401-Bioretention O&M-Rev.3 Page 2 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
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-Bioretention O&M-Rev.3
Page 3 of 4

l
Permit Number.
(to be provided by DVVQ)
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 mmne:Fort Bragg SOF Group Headquarters
BMP drainage area number:P 1
Print name:Mr. David Heins
Title: Directorate of Public Works/Chief-Environmenfal Division
Address:2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this
day of , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL
My commission
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number.
Infiltration Basin Operation and Maintenance Agreement
1 will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
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.
Form SW401-Infiltration Basin O&M-Rev.3
Page 1 of 3

BMP element:
Potentialproblem:
How I will remediate theproblem:
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
prevent 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 be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Fort Brant: SOP Group Headquarters
BMP drainage area number:
Print name:Mr. David Heins
Title: Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Stop A Fort Bragg, NC 29310-5000
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of do hereby certify that
personally appeared before me this
day of , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission
Form SW401-Infiltration Basin O&M-Rev.3
Page 3 of 3

State Stormwater Permit
Permit No. SW6130403
SOF Group Headquarters MISOC"(A) PN71224, Fort Bragg, North Carolina
Stormwater Permit No. SW6130403
Cumberland County
Designer's Certification
I, t1tG7C. Ve, T4_A , as a duly registered in the
State of North Carolina, having been authorized to observe (periodical) weekly/ full
time) the construction of the project,
(Project)
for b; rr_ iPo ls, W P, t);r_. Wanks. rtf (Project Owner) hereby state that, to the
.best of my abilities, due care and di igence s used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Cert� n(� C
Noted deviations from approved plans and specification: RECEIVED
Signature --�
Registration Number 6 349'f
Date. -
FEB -1 2016
DEO•FAYETTEVILLE REGIONAL OFFICE
SEAL
CAR-
•�EsS O
Page 5 of 6

State Stormwater Permit
.Permit No. SW6130403
Certification Requirements:
1.
The drainage area to the system contains approximately the permitted
acreage.
2.
The drainage area to the system contains no more than the permitted
amount of built -upon area.
All the built
-upon area associated with the project is graded such that the
runoff drains to the system.
All drains located
_PV4..
roof are such that the runoff is directed into the system.
_V�5.
The bypass structure weir elevation is per the approved plan.
.
The bypass structure is located per the approved plans.
7.
A Trash Rack is provided on the bypass structure.
8.
All slopes are grassed with permanent vegetation.
9.
Vegetated slopes are no steeper than 3:1.
_10.
The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11.
The permitted amounts of surface area and/or volume have been
provided.
2.
All required design depths are provided.
9-
3.
All required parts of the system are provided.
1,4.
The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Fayetteville Regional Office
225 Green Street, Suite 714
Fayetteville, NC 28301-,5043
-RECEIVED
FEB -1 2016
DEC-FAYETTEVILLE REGIONAL OFFICE
Page 6 of 6

Permit No.
(to be provided by DWDI
® ` STORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
404456-7859
P1 (Pond 41)
II. DESIGN INFORMATION''.
Site Characteristics
Drainage area 205,168.00 file
Impervious area 96,703.00 f?
Percent impervious 47.13 %
Design rainfall depth 1.00 in
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-hr discharge
Pre/Post 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' mn iffvolume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum required volume
Volume provided
Solis Report Summary
Soil type
Infiltration rate
SHVJT 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
Additional Information
Maximum runoff to each Inlet to the basin?
Length of vegetative filter for overflow
Distance to structure
Distance from surface waters
Distance from water supply well(s)
Separation from impervious soil layer
Naturally occuring soil above shwt
Bottom covered vdth 4-in of clean sand?
Proposed drainage easement provided?
Capures all mnoff at ultimate build -out?
Bypass provided for larger storms?
Pretreatment device provided
3.06 in
0.13 1
Ulf ft°Isec
3.63 ft3lsec
3.62 tt'Isec
14,675.00 ft'
24,294.00 g'
OK for non -SA waters
ft3
61
ft'
ft3
ft3
W9B
HSGA
0.52
Whir
249.00
(mail
2.92
days OK
3,00
:1 OK
251.50
fmsl OK
255.00
land
9,153.00
fte
256.60
fmsl
150,00
it
45.00
it
4.836,00
file
1.34
ac-in
OK
Na
ft
OK
870.00
ft
OK
650.00
it
OK
3,000.00
it
OK
5.00
it
OK
1.00
it
OK
y
(Y or N)
OK
his
(Y or N)
OK
y
(Y or N)
OK
y
(Y or N)
OK
Catch Basin Si
details on
MAR 2 1 2014
C�ARO`i��i
Q . 'ESS/0% i
i��/FRFK •WES�FP�\
Form SW401-1ruleai Basin-Revr5 11Ap2011 Paris I. 811, Design summary, Page 1 of 1

Infiltration Basin #1 Calculations
Project: )up Headquarters Facility MI
Contract No'. W912HN-11-D-D0002-DO-02
Location: Fort Bragg, NC
Project NO: PN 71224
County: Cumberland
Designed by: DRW
Date: 10/l/2013
Check by: HG
Fimnln Mnfhnd
Post Developed Conditions
Pervious Area=
2.49
acres
Impervious Area=
2,22
1acres
Total Area=
4.71
lacres
VImpervious Area Fraction=
0.47
Rv=0.05+0.9(I)= 0,47
V=Volume of runoff to be controlled of
Rn=Design Storm Rainfall Depth= 1.81 inches required for EISA
A=Wateshed area= 4.71 arces
V=3630'Ro`R,*A= 14674.77 of
Project is not located near SA or ORW Waters
MAR 2 1 2014
Volume Provided by Infiltration
V (cf) , 14675
calculated value
k = coefficient of permeability of filter
from geotech (0.52 in/hr min req for NCDENR)
meadia (in/hr) = 0.52
T=design draining time (days) = 3
Value of 3 days recommended, 5 day max
A, (sgft) = surface area of infiltration
basin = V/(2'k`T)
A, Basin = 4703
calculated value
Provided Surface Area = 4836
area from grading plan
ELEVATION AREA(S.F.)
VOLUME(C.F.)
(C.Y.)
251.50 4836
0
0
2562
252,00 5411
2562
95
6007
253.00 6602
8568
317
6446
253.90 7722
15014
556
779
254.00 7849
15793
585
8501
255.00 9153
24294
900
Elev at required vol= 253.85
Weir Elevation = 253,90
Volume at Weir- 15014
1
Actual Infiltration Time
\\\\\N
IC A R� ///
Time to infiltrate control volume=
2.92 days
�/ //i
T = V/(2'k'A)=14675/(2'0.52'8188)=
�\ �� •' S $
y0' ti
Time to infiltrate volume to weir-
i
T = V/(2'k'A)=22650/(2'0.52'8188)=
2.99 days
_
$ r
Vegetated Filter Strip
Ro=2.5XDesign Storm Rainfall Depth= 2.5
j F GINE,�.<•
RFK
A=Wateshed area= 4.71
arces
V=3630'Ro R,*A= 20269
cf
Time to infiltrate at 1/2 soils report rate=
T = V/(2'k-A)=20269/(2'0.26'8188)=
8.06 days
V (20269) < volume at weir (22650) and T (3.54) is < 5 days therefore Filter Strip and
Offiine Bypass are not required

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Infiltration Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches. MAR 2 1 2014
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will renrediate 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.
Form SW401-Infiltration Basin O&M-Rev.3
Page l of 3

AMP element:
Potentialproblem:
How I will remediate theproblem:
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
prevent 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 SW40 I -Infiltration Basin O&M-Rev.3
Page 2 of 3

Permit Number:
(to be provided by DWQ)
1 acknowledge and agree by my signature below that 1 am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:SOF Group Headquarters, MISOC (A), Fort Bragg, NC
13MP drainage area number:
Print name:Mr. David Heins
Title: Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Stop A, Fort Brag[[. NC 28310-5000
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, , a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this
day of , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission
Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3