SW6101102_CURRENT PERMIT_20111104

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW_�O ��fL
DOC TYPE
CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE(��
YYYYMMDD
9

DENR-FRO
r� r
NCDENR
North Carolina Department of Environment and Natural
Beverly Eaves Perdue
Governor
Mr. Craig Lantz
Fort Bragg DPW - WMB
2175 Reilly Road Stop A
Fort Bragg, NC 28310-5000
Division of Water Quality
Coleen H. Sullins
Director
November 4, 2011
NOV 0 8 2011
Resources MIDI
Subject: Stormwater Permit No. SW6101102 — PLAN REVISION
Warrior in Transition Complex - Barracks
High Density Bio-Retention & Infiltration Trench Project
Cumberland County
Dear Mr. Lantz:
Dee Freeman
Secretary
The Stormwater Permitting Unit received a plan revision request to revise Stormwater
Management Permit for Warrior in Transition Complex - Barracks on November 3, 2011. Staff
review of the plan revision 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 a revised Permit No. SW6101102, dated November 4, 2011, for the construction,
operation and maintenance of the subject project and the stormwater BMPs.
This permit shall be effective from the date of issuance until December 8, 2020, 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 inspection and maintenance of the stormwater management system will result in future
compliance problems.
2.36 acres of existing impervious area will be removed from the site. This will allow for 2.26
acres of the new 7.46 acres total impervious area to not be treated. This plan revision
increased the impervious area that is not treated from 2.06 acres to 2.26 acres; which is
still less than the amount of existing impervious area being removed.
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.
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 Robert Patterson at (919)
807-6375; or [e-mail].
Wetlands and Sunni Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet:w ncwaterquahty.org
An Equal Opportunity 1 Affirmative Action Employer
NorthCarolina
Naturally

Mr. Craig Lantz
SW6101 102 — Warrior in Transition Complex - Barracks
November 4, 2011
Sincerely,
ow."
or Coleen H. Sullins
cc: SW6101102 File
ec: Mike Lawyer — Fayetteville Regional Office
Patrick Rosenow, PE — Civil Consultants of AL, Inc.
Page 2 of 2

State Stormwater Permit
Permit No. SW6101102
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
Fort Bragg Directorate of Public Works
Warrior in Transition Complex - Barracks
NW corner of Normandy Dr. & Half St., Fort Bragg, Cumberland County
FOR THE
construction, operation and maintenance of eight bioretention cells and two
underground infiltration trenches in compliance with the provisions of Session Law
2006-246 and 15A NCAC 2H .1000 (hereafter referred to as the "storm water 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 December 8, 2020, 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 Section 1.8 and 1.9 of this permit. The stormwater control
has been designed to handle the runoff from 240,190 square feet of impervious
area.
3. In lieu of the overflow from the infiltration trenches going to vegetated filter strips,
the overflow for trench 1 will sheet flow through a vegetated slope into a dry
detention basin; and the overflow for trench 2 will go into another dry detention
basin.
4. The tract will be limited to the amount of built -upon area indicated in Section 1.8
and 1.9 of this permit, and per 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.
Page 1 of 9

State Stormwater Permit
Permit No. SW6101102
M
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 built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent streams.
The following design criteria have been provided
in the infiltration
trenches and
must be maintained at design condition:
Trench 1
Trench 2
a. Drainage Area, Acres:
1.72
5.84
Onsite, ft :
75,135
254,390
Offsite, ft2:
0
0
b. Total Impervious Surfaces, ft2:
52,961
134,869
Onsite, ft :
52,961
134,869
Offsite, ft2:
0
0
C. Design Storm, inches:
1.0
1.0
d. Trench Length ft:
310.0
185.0
e. Trench Width, ft:
18.0
14.0
f. Trench Height, ft:
3.0
6.5
g. Perforated Pipe Diameter / Length:
no pipe
60" / 379'
h. Bottom Elevation, FMSL:
305.5
295.37
i. Bypass Weir Elevation, FMSI3:
309.0
301.87
j. Permitted Storage Volume, ft :
6,696
11,363
k. Type of Soil:
Clayey Sand
Silty Sand
I. Expected Infiltration Rate, in/hr:
0.67
2.2y
M. Seasonal High Water Table, FMSL:
302.0
293.0
n. Time to Draw Down, days:
3.73
1.89
o. Receiving Stream: LIT to Beaver Crk
LIT to Tank Crk
P. Stream Index Number:
18-31-24-5
18-23-27
q. Classification of Water Body:
"C"
"C"
r. River Basin:
Cape Fear
Cape Fear
Page 2 of 9

State Stormwater Permit
Permit No. SW6101102
The following design criteria have been provided in the bioretention cells and
must be maintained at design condition:
a. Drainage Area, acres:
Onsite, ft :
Offsite, ftZ:
b. Total Impervious Surfaces, ftZ:
Onsite, ft :
Offsite, ftZ:
C. Design Storm, inches:
d. Ponding Depth, inches:
e. SHWT, fmsl:
f. Planting Media Depth, feet:
g. Cell Dimensions, feet:
h. Planting Elevation, fmsl,
i. Bottom Surface Area, ft:
j. Permitted Storage Volume, ft3:
k. Bypass / Storage Elevation, fmsl:
I. Drawdown Time, hours:
M. Underdrain Diameter, inches:
n. Total number of plants provided:
o. Receiving Stream/River Basin:
P. Stream Index Number:
q. Classification of Water Body:
(9 continues on page 4)
Cell 1 Cell 2
0.27
0.14
11,761
5,969
0
0
4,020
2,472
4,020
2,472
0
0
1.0
1.0
12
12
300.0
300.0
2.0
2.0
60x21
57x27
313.5
316.5
1,260
1,539
1,260
1,539
314.5
317.5
36
36
6.0
6.0
grass sod grass sod
UT to Beaver Crk / Cape Fear
18-31-24-5
„C„
Page 3 of 9

State Stormwater Permit
Permit No. SW6101102
9 continued
Cell
Cell
Cells
Cell
Cell
Cell
a.
Drainage Area, Acres:
0.29
0.37
0.41
0.34
0.32
0.36
Onsite, ft :
12,632
16,268
17,995
14,810
13,939
15,682
Offsite, ft2:
0
0
0
0
0
0
b.
Total Impervious Surfaces, ft2:
6,200
6,260
7,877
7,900
7,810
9,821
Onsite, ft :
6,200
6,260
7,877
7,900
7,810
9,821
Offsite, ft2:
0
0
0
0
0
0
C.
Design Storm, inches:
1.0
1.0
1.0
1.0
1.0
1.0
d.
Ponding Depth, inches:
12
12
12
12
12
12
e.
SHWT, fmsl:
307.5
307.5
307.5
307.5
307.5
307.5
f.
Planting Media Depth, feet:
2.0
2.0
2.0
2.0
2.0
2.0
g.
Cell Dimensions, feet:
60x22
90x22
105x28
71x10
64x16
64x16
h.
Planting Elevation, fmsl
316.5
316.5
315.5
317.5
316.5
316.5
i.
Bottom Surface Area, ft2:
1,320
1,980
2,940
710
1,024
1,024
j.
Permitted Storage Volume, ft3:
1,320
1,980
2,940
710
1,024
1,024
k.
Bypass / Storage Elevation, fmsl:
317.5
317.5
316.5
318.5
317.5
317.5
I.
Drawdown Time, hours:
36
36
36
36
36
36
M.
Underdrain Diameter, inches:
6.0
6.0
6.0
6.0
6.0
6.0
n.
Total number of plants provided:
grass sod
grass sod
grass sod
grass sod
grass sod
grass sod
o.
Receiving Stream/River Basin:
UT to Beaver Crk /
Cape Fear
P.
Stream Index Number:
18-31-24-5
q.
Classification of Water Body:
"C"
Page 4 of 9

State Stormwater Permit
Permit No. SW6101102
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 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, filter 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
records will indicate the date, activity, name of person performing the work and
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 facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
7. 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 5 of 9

State Stormwater Permit
Permit No. SW6101102
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
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. 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.
12. 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
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
supporting 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.
Page 6 of 9

State Stormwater Permit
Permit No. SW6101102
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.
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.
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.
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.
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 4th day of November, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
1V1 VVIV VII 11. VVIIII 1J, Vll ri VlVl
Division of Water Quality
By Authority of the Environmental Management Commission
Page 7 of 9

State Stormwater Permit
Permit No. SW6101102
Warrior in Transition Complex - Barracks
Stormwater Permit No. SW6101102
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 8 of 9

State Stormwater Permit
Permit No. SW6101102
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 elevations are per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the outlet/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.
Submit this Designer's Certification to:
DWQ Fayetteville Regional Office
Surface Water Protection
225 Green Street
Systel Bldg. Suite 714
Fayetteville, NC 28301-5043
Page 9 of 9

b ", • L a l t.
. q'2 �... DWQ USE OI�ILY . -
Date Received
Fee Paid
Number
(]
�cwPerm'
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ PITH - Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ NImt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FI'O,1RM,1
This form may be photocopied for use as an original UE W RI—FR®
I. GENERAL INFORMATION
JAN 2 8 2011
1. Project Name (subdivision, facility, or establishment name - should be consistent with projechtnameo plans,
specifications, letters, operation and maintenance agreements, etc.): (UVVU
Warrior in Transition Complex - Barracks
2. Location of Project (street address):
City:Ft Bragg County:Cumberland Zip:28310-5000
3. Directions to project (from nearest major intersection):
Take All American Expressway north into Fort Bragg. Turn Right on Normandy Dr. Site is on the left just
south of Womack Army Medical Center and east of Albritton Middle School
4. Latitude:350 08' 27" N Longitude:78° 59' 59" W of the main entrance to the project.
II. 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 stormwater 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
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 15.47 ac of Disturbed Area
0404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
Forn

III. 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 project):
Applicant/Organization: Directorate of Public Works (DPW)
Signing Official & Title:Mr. Craig Lantz, Water Management Branch (WMB)
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 State: NC Zip:28310-5000
Phone: ( 910 ) 396-2301 Fax: ( 910 ) 907-2420
Email:iennings.clantzQus.a rmy. m it
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. (This is the
person who owns the property that the project is located on):
Property Owner/Organization: Directorate of Public Works (DPW)
Signing Official & Title:Mr. Craig Lantz, Water Management Branch (WMB)
b.Contact information for person listed in item 2a above:
Street Address:2175 Reilly Road Stop A
CityTort Bragg State:NC Zip:28310-5000
Mailing Address (if applicable):2175 Reilly Road Stop A
City:Fort Bragg State: NC Zip:28310-5000
Phone: ( 910 ) 396-2301
Email: [e-mail]. mil
Fax: ( 910 ) 907-2420
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
Form SWU-101 Version 07July2009 Page 2 of 7

Phone: ( 910 ) 396-2301
Email: [e-mail]
Fax: ( 910 ) 907-2420
4. Local jurisdiction for building permits: N/A
Point of Contact: Phone #:
IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
The site will capture and treat storm water using multiple bioretention basins that treat the first flush of storm
water before conveying the runoff to a detention pond on the southern edge of the site. Two infiltration
trenches treat the runoff at the northern portion of the site.
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.Identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ® Ph II - Post Construction
3. Stormwater runoff from this project drains to the
4. Total Property Area: 17.08 acres
River basin.
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+:17.08 acres
Total project area shall be calculated to exclude the following the nornml pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landroard from the NHW (or MHVV) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands lamdward of the NHW (or MHVV) line nay
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 44
9. How many drainage areas does the project have?16 (For high density, count 1 for each proposed engineered
stormwater BMP. For low 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 07July2009 Page 3 of 7

aBasin-Information .,,$+`'��, ,�,��"'�
.Drama eAi•ea_
Draina'efAr6
Drainage Area'','
-Draina e)Atea-
Receiving Stream Name
Stream Class *
Stream Index Number
Total Drainage Area (so
On -site Drainage Area (so
Off -site Drainage Area (so
Proposed Impervious Area** s
Im ervious Area"'` total
Jm" eiviousi";Surface Area ', ,! , , ;
: Drama` e Area _
:Drama e Area._
,Draina e Area :_
Draina e'Area,-,Id'
On -site Buildings/Lots (so
On -site Streets (so
On -site Parking (so
On -site Sidewalks (so
Other on -site (so
Future (so
Off -site (so
Existing BUA*** (so
Total (so:
Streant Class and Index Number can be determined at:Itttp://h2o.enr.state.tic.us/bims/reports/reportsWB.html
bnpervious area is defined as the built upon area including, bill not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
is to be retuoved and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation.
Pr_olects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stornnvater requirements as per NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater 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
fromhtty://h2o.enr.state.nc.us/su/bmv forms.htm.
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://h2o.enr.state.nc.us/su/bmp_forms.htm. 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 hn://h2o.enr.state.nc.us/su/msi maps.htm.)
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://h2o.enr.state.nc.us/su/bmp_forms.htm.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
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 Supplement 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
http://www.envhelp.org/pages/oiiestopexpress.htmlfor information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
Fomi SWU-101 Version 071uly2009 Page 4 of 7

5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
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 1h mile of the site boundary, include the 1/2
mile radius on 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.
It. 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.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
in. 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"x1l" 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 verifij 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 la, 2a, and/or 3a per NCAC 2H.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.
ht!p://www.secretary.state.nc.us/Corl2orations/CSearch.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://h2o.enr.state.nc.us/su/bmp forms htm#deed restrictions. 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 07July2009 Page 5 of 7

VIII. 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: Eri L srt.%
Consulting Firm: GI'y l Cv �5'0
Mailing Address:
City: Brrw ty5�l-.,.,..
Phone: ( -205- ) (o 55 — N9 I Fax: ( zos
Email: e-riC@ Givi( C.v.n S. 1>-d 4s )k<-. ina -.
zip: 3SZ3S
(oSS- &U4.
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 Has been filled out, complete this
section)
I, (print or type mmne of person listed in Contact Information, item 2a) , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1a) with (print or type name of organization listed in
Contact Information, item 1b) 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 Name/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.
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 07July2009 Page 6 of 7

1.
X. APPLICANT'S CERTIFICATION
I, (print or hjpe none of person listed in Contact Information, item 2) Mr. Craig Lantz
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 storm" er rules under
^15AA NCAC 2H .1000, SL 2006-246 (Ph. II- Post Construction) or SSL 2008-211.
Signature, 17 c (iL42liZ I Date: 7 bl)
before me this
a Notary Public for the State of
do hereby certify that
day of
County 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 07July2009 Page 7 of 7

Basin Information
Bio-R #1
Bio-R #2
Bio-R 93
Bio-R #4
Receiving Stream Name
Cape Fear
River
Cape Fear
River
Cape Fear
River
Cape Fear
River
Stream Class
WS-Iv
WS-Iv
WS-Iv
WS-Iv
Stream Index Number
18-(1)
18-(1)
18-(1)
18-(1)
Total Drainage Areas
11,761
5,969
12,632
16,268
Onsite D.A. so
11,761
5,969
12,632
16,268
Ofl=site D.A. so
0
0
0
0
Proposed Impervious Area (sf)
4,020
2,472
6,200
6,260
% Impervious Area (total)
34%
41 %
49%
38%
Impervious Surface Area
On -site Buildings/Lots s
0
0
0
0
On -site Streets (SO
0
0
0
0
On -site Parkin s
0
0
0
0
On -site Sidewalks (st)
1,495
0
832
1,870
Other on -site (so
0
0
0
0
Future (so
2,525
2,472
5,368
4,390
Off -site S
0
0
0
0
Existing 13UA (sf)
0
0
0
0
Total (so
4,020
2,472
6,200
6,260
Basin Information
Bio-R #5
Bio-R #6
Bio-R #7
Bio-R #8
Receiving Stream Name
Cape Fear
River
Cape Fear
River
Cape Fear
River
Cape Fear
River
Stream Class
WS-1v
WS-Iv
WS-lv
WS-Iv
Stream Index Number
18-(1)
18-(1)
18- 1
18-(1)
Total Drainage Area
17,995
14,810
13,939
15,682
Onsite D.A.
17,995
14,810
13,939
15,682
Off -site D.A.
0
0
0
0
Proposed Impervious Area
7,877
7,900
7,810
9,821
% Impervious Area (total)
44%
53%
56%
63%
Impervious Surface Area
On -site Buildings/Lots (sl)
0
0
0
0
On -site Streets (st)
0
0
0
0
On -site Parking (so
0
0
0
0
On -site Sidewalks (so
1,339
2,220
2,506
3,861
Other on -site st
0
0
0
0
Future (SO
6,538
5,680
5,304
5,960
Off -site st
0
0
0
0
Lxistin g 13UA (so
0
0
0
0
Total (so
7,877
7,900
7,810
9,821

Basin Information
Inf Tr 41
Inf Tr #2
Pond 1
Small Pond
Receiving Stream Name
Cape Fear
River
Cape Fear
River
Cape Fear
River
Cape Fear
River
Stream Class
WS-Iv
WS-Iv
WS-Iv
WS-Iv
Stream Index Number
18-(1)
18-(1)
18-(])
18-(1)
Total Drainage Area
75,135
254,390
No credit
No credit
Onsite D.A.
75,135
254,390
Requested
Requested
Off -site D.A.
0
0
Proposed Impervious Area
52,961
134,869
% Impervious Area (total)
68%
53%
Impervious Surface Area
On -site Buildings/Lots (sf)
0
40,043
-
-
On -site Streets (sf)
0
4,729
-
-
On -site Parking (sf)
40,154
40,575
-
-
On -site Sidewalks (sf)
10,687
49,522
-
-
Other on -site (sf)
0
0
-
-
Future (sf)
2,120
0
-
-
Off -site (sf)
0
0
-
-
Existing BUA (sf)
0
0
-
Total (st)
52,961
134,869

PernritNumber:-5W/0//02
(to be provided by DWQ)
Drainage Area Number: 1NFiL- 79ArAa # J 4 2—
Infiltration Trench 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 of the infiltration trench will be carefully managed to reduce
the sediment load to the sand filter.
— The water level in the monitoring wells will be recorded once a month and after
every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County).
The infiltration trench 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. 10
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 grass filter strip or
Areas of bare soil and/or
Regrade the soil if necessary to
other pretreatment area
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure (if applicable)
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is too large for
repair.
Form SW401-Infiltration Trench O&M-Rev.3
Page 1 of 3

BMP element:
Potentialproblem:
How I will remediate theproblem:
The trench
Water is ponding on the
Remove the accumulated sediment
surface for more than 24
from the infiltration system and
hours after a storm.
dispose in a location that will not
impact a stream or the BMP.
The depth in the trench is
Remove the accumulated sediment
reduced to 75% of the original
from the infiltration system and
design depth.
dispose in a location that will not
impact a stream or the BMP.
Grass or other plants are
Remove the plants, preferably by
growing on the surface of the
hand. If pesticide is used, wipe it on
trench.
the plants rather than spraying.
The observation well(s)
The water table is within one
Contact the DWQ Stormwater Unit
foot of the bottom of the
immediately at 919-733-5083.
system for a period of three
consecutive months.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
The outflow pipe is damaged.
Repair or replace the pipe.
The emergency overflow
Erosion or other signs of
The emergency overflow berm will
berm
damage have occurred at the
be repaired or replaced if beyond
outlet.
repair.
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 Trench O&M-Rev.3 Page 2 of 3

Permit Number: sVt5*/o// O 2-
(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.
Prqject name:FtBragg WT Barracks Complex
BMP drainage area number:Infil Trench #1 aE ?P 2-
Print
Title: Directorate of Public Works (DPW)/Water Management Branch (WMB)
Address: 2175 Reilly Road Stop A, Fort Bragg, NC 28310-5000
Phon
Sign:
Date
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
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 trench maintenance requirements. Witness my hand and official
seal,
SEAL
My commission
Form SW40 I -Infiltration Trench O&M-Rev.3
Page 3 of 3

Permit Number: SWC10 It 0 2-
(to 6e rovided by a)Drainage Area Number: to'l� —
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).
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.
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 IPage 1 of 4

BMP element:
The pretreatment area
The bioretention cell:
vegetation
The bioretention cell:
soils and mulch
Flow is bypassing
pretreatment area and/or
gullies have formed.
Sediment has accumulated to
a depth greater than three
inches.
Erosion has
are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Tree stakes/wires are present
six months after planting.
Mulch is breaking down or
has floated away.
Soils and/or mulch are
clogged with sediment.
An annual soil test shows that
pH has dropped or heavy
metals have accumulated in
the soil media.
How 1 will remediate the problem:
Regrade if necessary to route all
flow to the pretreatment area.
Restabilize the area after grading.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
restabilize the pretreatment area.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Remove the weeds, preferably by
hand.
Prune according to best professional
practices.
Determine the source of the
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.
Remove tree stake/wires (which
can kill the tree if not removed).
Spot mulch if there are only random
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.
Determine the extent of the clogging
- 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
sediment and remedy the problem if
Dolomitic lime shall be applied as
recommended per the soil test and
toxic soils shall be removed,
disposed of properly and replaced
with new planting media.
Form 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

Permit Number: D //d 2-
(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: Ft Bragg WT Barracks Complex
BMP drainage area number:Bio-R #1 —#" li
Print name:
Title: Directorate of Public Works (DPW)/Water Mangement Branch (WMB)
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

In ipq_ 0 Permit No. -5W6/61 / oZ
Ito be provided by DWQ)
AAJAN 2 8 1011 °?°FwAiF"°`
NC®ENR M nORMWATER MANAGEMENT PERMIT APPLICATION FORM °�€
401 CERTIFICATION APPLICATION FORM
INFILTRATION TRENCH SUPPLEMENT
This form most be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
IIRRVJEC:TiINF0RMATION 100,' -1M
Project name Fort Bragg WT Barracks Complex
Contact person Donald Stovall
Phone number 205-655-1991
Date 10/22/2010
Drainage area number Infiltration Trench #1
Site Characteristics
Drainage area
Impervious area
Percent impervious
Design rainfall depth
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 volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Trench Design Parameters
Drawdown time
Perforated pipe diameter
Perforated pipe length
Number of laterals
Stone type (if used)
Slone void ratio
Stone is free of fines?
75,135.00 it'
52,961.00 it'
70.5% %
I.uu In
in
in/hr
ft3/sec
ft3/sec
ft3/sec
4,285.00 ft3
6,696.00 ft3
it
it
ff3
ft3
ft3
Clayey Sand
0.67 in/hr
302.00 fmsl
3.73 days
nla in
ft
OK for non -SR waters
KI
ii0t &rrJ
40%
Y (Y or N) OK
Form SW401-Infiltration Trench-Rev.4 Parts I. & II. Design Summary, Page 1 of 2

Permit
(to be provided by DWQ)
Trench Elevations
Bottom elevation
305.50
fmsl
Storage/overnow elevation
309.00
fmsl
Top elevation
308.50
fmsl
Trench Dimensions
Length (long dimension)
310.00
ft
Width (shoo dimension)
18.00
ft
Height (depth)
3.00
ft
Additional Information
Maximum volume to each inlet into the trench?
1.84
ac-in
Length of vegetative filler for overflow
30.00
It
Number of observation wells
1
Distance to structure
N/A
ft
Distance from surface waters
NIA
ft
Distance from water supply well(s)
NIA
ft
Separation from impervious soil layer
5.50
ft
Depth of naturally occuring soil above SHWT
N/A
ft
Bottom covered with 4-in of clean sand?
N/A
(Y or N)
Proposed drainage easement provided?
N/A
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms?
Y
(Y or N)
Trench wrapped with geotextile fabric?
Y
(Y or N)
Pretreatment device provided
N
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Form SW401-Infiltration Trench-Rev.4 Parts I. & II. Design Summary, Page 2 of 2

Permit No. '5k/,00I/OZ
(to be provided by DWQ)
WArF,9OL
LV-WA
0
NCDEPIR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
INFILTRATION TRENCH SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information
I. PROJECT INFORMATION
Project name
Fort Bragg WT Barracks Complex
Contact person
Donald Stovall
Phone number
205-655-1991
Date
10/22/2010
Drainage area number
Infiltration Trench #2
II. DESIGN, INFORMATION
Site Characteristics
Drainage area
254,390.00 f 2
Impervious area
134,869A0 ftz
Percent impervious
53.0% %
Design rainfall depth
1.00 in
®it: a'
Peak Flow Calculations
�i,��� :rCA0
1-yr, 24-hr rainfall depth
1 -yr, 24-hr intensity
in
in/hr
ill
JAN 2 8 2011
Pre -development 1-yr, 24-hr discharge
ff3/sec
Post -development 1-yr, 24-hr discharge
ff3/sec
®��
Pre/Post 1-yr, 24-hr peak flow control
ff3/sec
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Trench Design Parameters
Drawdown time
Perforated pipe diameter
Perforated pipe length
Number of laterals
Stone type (if used)
Stone void ratio
Stone is free of fines?
11,175.00 ff3
11,363.00 ff3 OK for non -SR waters
it
ff3
ff3
it
It
illy Sand
2.25 in/hr
293.00 fmsl
1.89
days OK
60.00
in
379.00
fl
NIA
#57
40%
Y
(Y or N) OK
Form SW401-Infiltration Trench-Rev.4 Parts I, & II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
Trench Elevations
Bottom elevation
295.37
frost
OK
Storage/overflow elevation
301.87
fmsl
Top elevation
301.87
fmsl
Trench Dimensions
Length (long dimension)
185.00
ft
Width (short dimension)
14.00
ft
Height (depth)
6.50
ft
OK
Additional Information
Maximum volume to each inlet into the trench?
1.54
ac-in
OK
Length of vegetative filter for overflow
N/A
ft
OK
Number of observation wells
3
OK
Distance to structure
N/A
ft
OK
Distance from surface waters
N/A
ft
OK
Distance from water supply wells)
NIA
It
OK
Separation from impervious soil layer
11.00
ft
OK
Depth of naturally occuring soil above SHWT
ft
Bottom covered with 4-in of clean sand?
N/A
(Y or N)
OK
Proposed drainage easement provided?
N/A
(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
Trench wrapped with geotextile fabric?
Y
(Y or N)
OK
Pretreatment device provided
N
Form SW401-Infiltration Trench-Rev.4 Parts I. & II. Design Summary, Page 2 of 2

Perini! r Wmbvr.
�h/610!!0 2-
(to be pmvlded by DWQ)
®MW
OF WArEq
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 (Pad 111) must be printed, filled out and submitted along with all of the required information.
L.PROJECT INFORMATION. - - - -
Project name Ft Bragg W1 Barracks Complex
Contact name Donald Slovall
Phone number 205-65S1991
Dale March 12, 2010
Drainage area number 1
IL DESIGNINFORMATION
Site Characteristics
Drainage area
11,7611?
Impervious area
4,020 it'
Percent impervious
34.2% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr n mofl depth
1-yr, 24-hr intensity
Pre -development 1-yr. 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post I-yr, 24-hr peak control
Storage Volume: Non-SAWaters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pm -development t-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Cell Dimensions
Pointing depth of water
Ponding depth of water
Surface area of the top of the bioretention cell
Lengtht
Width:
-or. Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil.
Soil permeability
Planting media soil:
Soil permeability
Soil composition
% Sand (by weight)
% Fines (by might)
%Organic (by weight)
Phosphorus Index (P-Index) of media
N (Y or N)
in
Whir
n'tsec
fflsec
holsec
350.0 tta
1.260.061 OK
I
h'
it
0 ft'
0'
12 inches
OK
1.00 it
1,260.0fe
OK
60 it
OK
21it
It
OK
12 hr OK
24 hr OK
36 hr
0A0 iNhr Insufficient. Increase infiltration rate.
1.00 inlhr OK
85% OK
10% OK
5% OK
Total: 100%
10 limitless) OK
Foam SW401-8kxelenlion-Rev.a
Jury 30, 2009
Pans I and II. Design Summary. Page 1 or 2

Permit
(ro ee provided xy DWO)
Basin Elevations
P
Temporary pool elevation
314.50 fast
Type of bioretention cell (answer'Y' to only one of the two following
questions):
Is this a grassed cell?
Y
(Y or N)
OK
Is this a cell with treeslshmbs?
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
313.50 fmsl
Depth of mulch
0 inches
Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil
311.50 fmsl
Planting media depth
2 fl
Depth of washed sand below planting media soil
0.33 it
Are underdraim being installed?
Y
(Y or N)
How many clean out pipes are being installed?
2
OK
What fads of safety is used for sizing the underdrains? (See SMP
10
OK
Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 it
the bottom of the cell to account for underdrains
Bottom of the cell required
310.17 find
SH WT elevation
300 frost
Distance from bottom to SH WT
10.17If
OK
Internal Water Storage Zone (IWS)
Does the design include IWS
N
(Y or N)
Elevation of the top of the upturned elbow
frost
Separation of IWS and Surface
313.51t
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
0
Recommend more species.
Additional Information
Does volume in excess of the design volume bypass the
(Y or N)
OK
bloretention cell?
y
Does volume in excess of the design volume flex evenly distributed
N
(Y or N)
Excess volume must pass Through filter.
through a vegetated filler?
What is the length of the vegetated filter?
0
Does the design use a level spreader to evenly distribute flax?
N
(Y or N)
Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
y
(y or N)
OK
SA waters)?
Is the BMP localed at least 100 feel from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access to
a ublic R"ghtof Wa (ROW)?
Y
(Y or N)
OK
y
Inlet velocity (from treatment system)
3 fUsec
Is the area surrounding the cell likely to undergo development in the
N Y or N
( )
Mute?
Are the slopes draining to the bioretention cell greater than 20%?
N (Y or N)
Is the drainage area permanently stabilized?
Y (Y orN)
Pretreatment Used
(Indicate Type Used with an'X' in the shaded cell)
Gravel and grass
(Winches gravel followed by 35 ft of grass)
Grassed wale
Forebay
Other
Insufficient inlet velocity unless energy dissipating devices are being
used.
OK
OK
OK
Form SW<Ot-Bioretenuon-Rev,8
Juty 30, 2009 Pons I and II. Design Summary, Page 2 or 2

UNDERDRAIN SIZING
Project name
Fort Bragg WT Barracks Complex
Contact name
Donald Stovall
Phone number
205-655-1991
Date
3/12/2010
Drainage area
Bioretention basin #1
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A'I'FS/(12'60'60)
Pond Area 1260 Pond Length 60
Max. Infiltration Rate 2.4 Pond Width 1 21
Factor of Safety 10
Q= 0.70 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n )ISA0.5)A3/8
D=DIAM.
PIPE
Q(cfs)
1 0.70
n(pvc)
0.011
S(f /ft)
0.005
JD= 6.97 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7

®RA
IRA
Permit Number 5N/6/01/02—
(to be provided by DIO)
o?OF WArfo O
g
> y
0
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 (Pad 1/1) must be printed, filled out and submitted along with all of the required information
11. PROJECT INFORMATION I
Project name Ft Bragg WT Barracks Complex
Contact name Donald Stovall
Phone number 205-655-1991
Dale March 12, 2010
Drainage area number 2
II.- DESIGN INFORMATION
Site Characteristics
Drainage area
5,969 n'
Impervious area
2,472 n2
Percent impervious
Design rainfall depth
41.4% %
1.0 inch �� "�6� APO
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr peak Flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Cell Dimensions
Pending depth of water
Pending depth of water
Surface area of the top of the biorelenlion cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil.
Soil permeability
Planting media soil:
Soil permeability
Soil composition
%Sand (by weight)
• Fines (by weight)
°/ Organic (by weight)
Phosphorus Index (P-Index) of media
N (Y or N)
In
in/hr
ft'/sec
n'/sec
n'Isec
JAN�p�pp�/�82011
®" "Q
210.0 ff'
1,539.0 n' OK
n3
n'
n3
o n'
it,
12 inches
1.00 It
1,539.0 it
57 it
27 it
It
12 hr
24 hr
36 hr
0,10 in/hr
1.00 in/hr
OK
OK
OK
OK
OK
Insufficient. Increase infiltration rate.
M
85% OK
10% OK
5% OK
Total: 100%
10 (unitless) OK
Forth SW401-Bioretention-Rev.B
July 30, 2009
Parts I and II. Design Summary, Page 1 of 2

Permit Number'
(to be provided by DWQ)
Basin Elevations
Temporary pool elevation
317.50 fmsl
Type of biorelention cell (answer "Y" to only one of the two following
questions):
Is this a grassed cell?
Y (Y or N) OK
Is this a cell with trees/shrubs?
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
316.50 fmsl
Depth of mulch
0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil
314.50 (msl
Planting media depth
2 It
Depth of washed sand below planting media soil
0.33 it
Are underdrains being installed?
Y (Y or N)
How many clean out pipes are being installed?
4
What factor of safety is used for sizing the underdrains? (See BMP
10
Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 Itthe
bottom of the cell to account for underdrains
Bottom of the cell required
313.17 fmsl
SHWT elevation
300 fmsl
Distance from bottom to SHWT
13.17 tt
Internal Water Storage Zone (IWS)
Does the design include IWS
N (Y or N)
Elevation of the lop of the upturned elbow
fmsl
Separation of IWS and Surface
316.5It
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
0
Additional Information
Does volume in excess of the design volume bypass the
OK
OK
OK
Recommend more species.
bioretenlion cell? y (Y or N) OK
Does volume in excess of the design volume Flow evenly distributed N (Y or N) Excess volume must pass through filter.
through a vegetated filler?
What is the length of the vegetated filter? it
Does the design use a level spreader to evenly distribute flow? N (Y or N) Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feel if
Y
(Y or N)
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Y
(Y or N)
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
Is the BMP located in a proposed drainage easement with access to
Y
(Y or N)
a public Right of Way (ROW)?
Inlet velocity (from treatment system)
3 ft/sec
Is the area surrounding the cell likely to undergo development in the
N
(Y or N)
future?
Are the slopes draining to the biorelention 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
(8'inches gravel followed by 3-5 it of grass)
Grassed swale
Forebay
Other
Z
Y
OK
OK
OK
OK
Insufficient inlet velocity unless energy dissipating devices are being
used.
OK
(Y or N) OK
(Y or N) OK
Farm SW401-Bioretention-Rev.8
July 30, 2009 Parts I and 11. Design Summary, Page 2 of 2

UNDERDRAIN SIZING
Project name
Contact name
Phone number
Date
Fort Bragg WT Barracks Complex
Donald Stovall
205-655-1991
3/12/2010
Drainage area Bioretention basin #2
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A'I'FS/(12'60'60)
Pond Area 1539 Pond Length 57
Max. Infiltration Rate 2.4 Pond Width 1 27
Factor of Safety 10
Q= 0.86 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n)/SA0.5)A3/8
D=DIAM.
PIPE
Q(cfs)
0.86
n(pvc)
0.011
S(ft/ft)
0.005
D= 7.51 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 10' has been added to each
dimension to accound for 5:1 side slopes.

®� A
NCDENR
Permit Number:
(to be pn,vided by DWQ)
of WAATfN
O
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be rifled out, printed and submitted.
The Required Items Checklist (Pad Ill) must be printed, rifled out and submitted along with all of the required information.
I. PROJECT INFORMATION-
R
Project name Ft Bragg WIT Barracks Complex
Contact name Donald StmaO
Phone number 205.655.1991
Date Mardi 12, 2010
Drainage area number 3
II. DESIGN INFORMATION
Site Characteristics
Drainage area
12,632 fit'
Impervious area
6,200 ftt
Percent impervious
49.1% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr. 24-hr peak flow required?
N (Y or N)
1-yr, 24-hr runoff depth
1-yr, 24.lu intensity
in
iNhr
��
©�Vu'1 —FR®
Pre -development 1-yr, 24-hr peak flow
fir/sec
Post -development 1-in, 24-hr peak flow
to/sec
J A� 2 8
20��
PrelPost 1-yr, 24-hr peak control
hoisec
Storage Volume: Non -SA Waters
Minimum volume required
517.6 fir
®��
Volume provided
1,200.0 ho
OK
Storage Volume: SA Waters
1.5' runoff volume
it
Predevelopment 1-yr, 24-hr runoff
h1
Post -development 1-yr, 24-fir runoff
it
Minimum volume required
0 it,
Volume provided
if
Cell Dimensions
Pending depth or water
12 inches
OK
Ponding depth of water
1.00 it
Surface area of the top of the bioretenlion cell
1,320.0 hl
OK
Length:
60 it
OK
Width:
22 it
OK
-or- Radius
it
Media and Soils Summary
Drawdown lime, ponded volume
12 or
OK
Drawdown time, to 24 inches below surface
24 to
OK
Drawdown time, total:
36 hr
In -situ W.
Soil permeability
0.10 War
Insufficient. Increase infiltration ram.
Planting media soil:
Soil permeability
1.00 inim
OK
Soil composition
% Sand (by weight)
85%
OK
% Fines (by weight)
10%
OK
• Organic (by weight)
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media
10 (unitless)
OK
Form SW401-B,oretention-Rev.9
Jury W. 2009
Pens I and II. Design Summary. Page I of 2

Permit Number:
(ro be provided by DWO)
Basin Elevations
Temporary pool elevation
317.50 (msl
Type of bioretention cell (answer 'Y' to only one of the two following
questions):
Is this a grassed cell?
Y (Y or N)
Is this a cell with Ueeslshrubs?
(Y or N)
Planting elevation (top or the mulch or grass sod layer)
316.50 fmsl
Depth of much
0 inches
Bottom of the planting media soil
314.50 fmsl
Planting media depth
2 t1
Depth of washed sand below planting media soil
0.33 fl
Are underdrains being installed?
Y (Y or N)
How many clean out pipes are being installed?
2
What factor of safety is used for sizing the underdrains? (See BMP
n0
Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 It
the bottom of the cell to account for underdrains
Bottom of the cell required
313,17 fmsl
SHWT elevation
307.5 Imsl
Distance from bottom to SHWT
5.67 It
Intemal Water Storage Zone (IWS)
Does the design include IWS
Elevation of the top of the upturned elbow
Separation of IWS and Surface
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous gmundcover species
Additional Information
Does volume in excess of the design volume bypass the
thdretention 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?
N (Y or N)
fmsl
316.5 it
0
0
n
OK
Insufficient mulch depth, unless installing grassed cell.
OK
OK
OK
Recommend more species.
y (Y or N) OK
N (Y or N) Excess volume must pass through filter.
if
n (Y or N) Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
Y (Y or N)
OK
SA waters)?
Is the BMP located at least 100 feel from water supply wells?
Y (Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y (Y or N)
OK
Is the BMP located in a proposed drainage easement with access to
Y (Y or N)
OK
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
(6'inches gravel followed by 3-5 It of grass)
Grassed wale
Forebay
Other
3 01sec insufficient inlet velocity unless energy dissipating devioes are being
used,
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
Form SW401-13ioretention-Rev a
July 30, 2009
Paris 1 and II. Design Summery. Page 2 of 2

UNDERDRAIN SIZING
Project name
Fort Bragg WT Barracks Complex
Contact name
Donald Stovall
Phone number
205.655-1991
Date
3/12/2010
Drainage area Bioretention basin #3
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A'1'FS/(12'60'60)
Pond Area 1320 Pond Length 60
Max. Infiltration Rate 2.4 Pond Width 1 22
Factor of Safety 10
Q= 0.73 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n )/S ^0.5)^ 3/8
D=DIAM.
PIPE
Q(cfs)
0.73
n(pvc)
0.011
S(fuft)
0.005
D= 7.09 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7

Permtt Number: -Sl✓5! 0 ( (O 2_
(to be Provided by DINO)
ry/12�r1Qf�✓-/�■�1W���AjT�P�g�ps
NCDENR ter`
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) most be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION.
Project name Ft Bragg Wf Barracks Complex
Contact name Donald Stovail
Phone number 205-655-1991
Date March 12, 2010
Drainage area number 4
II. DESIGN• INFORMATION
Site Characteristics
Drainage area
16,268 (t2
Impervious area
6,260 ft'
Percent impervious
38.5% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak Flow required?
1-yr, 24-hr runoff depth
N (Y or N)
in
B.�S���—Ir �®
F?
1-yr, 24-hr intensity
inlhr
Ir
Pre -development 1-yr, 24-hr peak Flow
ft3/sec
JAN 2 8 2011
Post -development 1-yr, 24-hr peak flow
ft3/sec
Pre/Post 1-yr, 24-hr peak control
ft/sec
®p,A p�
'�1�
Storage Volume: Non-SAWaters
Minimum volume required
537.0 ft'
Volume provided
1,980.0 ft, OK
Storage Volume: SA Waters
IS' runoff volume
ft3
Pre -development 1-yr, 24-hr runoff
ft3
Post -development 1-yr, 24-hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
Ponding depth of water
Surface area of the lop of the bioretenlion cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil
Soil permeability
Planting media soil:
Soil permeability
Soil composition
• Sand (by weight)
% Fines (by weight)
• Organic (by weight)
12 inches
OK
1.00 ft
1,980.0 ft Z
OK
90ft
OK
22ft
OK
ft
12 hr OK
24 fir OK
36 fir
0.10 in/hr Insufficient. Increase infiltration rate.
1.00 in/hr OK
85% OK
10% OK
5% OK
Total: 100%
Phosphorus Index (P-Index) of media
Form SW401-Bioretention-Rev.8
July 30, 2009
10 (unitless) OK
Parts I and II. Design Summary, Page 1 of 2

Permit Number:
(to be provided by Q WQ)
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?
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 SH Wi
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 filler?
317.50 fmsl
Y (Y or N)
(Y or N)
316.50 first
0 inches
314.50 first
2 It
0.33R
ME
Insufficient mulch depth, unless installing grassed cell.
Y (Y or N)
3 OK
10 OK
1 it
313.17 frost
307.5 fmsl
5.67 it OK
N (Y or N)
fall
316.5 it
0
0
0 Recommend more species.
y (Y or N) OK
N (Y or N) Excess volume must pass through filter.
it
Does the design use a level spreader to evenly distribute Flow? N (Y or N) Show how flow is evenly distributed
Is the BMP located at least 30 feet from surface waters (50 feet if Y (Y or N) OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells? Y (Y or N) OK
Are the vegetated side slopes equal to or less than 3:1? Y (Y or N) OK
Is the BMP located in a proposed drainage easement with access to Y (Y or N) OK
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
(8'inches gravel followed by 3-5 ft of grass)
Grassed Swale
Forebay
Other
3Itsec Insufficient inlet velocity unless energy dissipating devices are being
used.
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
Form SW401-Biorelention-Rev.9
July 30, 2009 Paris I and II. Design Summary, Page 2 of 2

UNDERDRAIN SIZING
Project name Fort Bragg WT Barracks Complex
Contact name Donald Stovall
Phone number 205-655-1991
Date
3/12/2010
Drainage area Bioretention basin #4
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A-I'FS/(12-60.60)
Pond Area 1980 Pond Length 90
Max. Infiltration Rate 2.4 Pond Width 1 22
Factor of Safety 10
Q= 1.10 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n)/S^0.5)43/8
D=DIAM.
PIPE
Q(cfs)
1.10
n(pvc)
0.011
S(f /ff)
1 0.005
D= 8.25 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 10' has been added to each
dimension to accound for 5:1 side slopes.

_ Permit Number' 5A/6V0//62—
(to be provided by DWD)
?0F WarpgO
O G
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.
rroleci name
Contact name
Phone number
Date
Drainage area number
Ft Bragg WT Barracks
Donald Stovall
205-655-1991
March 12, 2010
II. DESIGN'INFORMATION
Site Characteristics
Drainage area
17,995 ryZ
Impervious area
7,877 ryZ
Percent impervious
43.8% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak Flow
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Cell Dimensions
Ponding depth of water
Ponding depth of water
Surface area of the top of the bioretention cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil:
Soil permeability
Planting media soil:
Soil permeability
Soil composition
• Sand (by weight)
• Fines (by weight)
%Organic (by weight)
N (Y or N)
in
in/hr
ft'/sec
ft'/sec
ft'/sec
666.0 It'
2,940.0 ft' OK
ff3
ff3
ff3
0 ff'
ft3
12 inches
1.00 ft
2,940.0 ff2
105 it
28 it
it
OK
OK
OK
OK
12 hr OK
24 hr OK
36 hr
0.10 in/hr
1.00 mill
85%
10%
5%
Total: 100%
® N9R-FAY" ®
JAN 2 8 2011
Insufficient. Increase infiltration rate.
OK
OK
OK
OK
[111 �'' I,0)
Phosphorus Index (P-Index) of media
Form SW401-Bioretenlion-Rev.8
July 30, 2009
10 (unitless) OK
Parts I and 11. Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Basin Elevations
Temporary pool elevation -3'I?:50 fmsl
Type of bioretention cell (answer 'Y'to only one of the two following a `
questions):
Is this a grassed cell? Y (Y or N) OK
Is this a cell with treeslshrubs? (Y or N)
Planting elevation (lop of the mulch or grass sod layer) —'-, fffmsl 3it5
Depth of mulch 0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil -344-K first 313 ..S �
Planting media depth 2 it
Depth of washed sand below planting media soil 0.33 it
Are underdrains being installed?
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 top 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
biorelention 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 feel 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 biorelention 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
(6'inches gravel followed by 3-5 it of grass)
Grassed Swale
Forebay
Other
Y (Y or N)
4 OK
10 OK
1 It
307.5 fmsl
5.67 it OK
N (Y or N)
first
316.5 it
0
0
0 Recommend more species.
y (Y or N) 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
3 FUsec Insufficient inlet velocity unless energy dissipating devices are being
used.
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
Form SW401-Bioretention-Rev.8
July 30. 2009
Parts I and 11. Design Summary, Page 2 of 2

UNDERDRAIN SIZING
Project name
Fort Bragg WT Barracks Complex
Contact name
Donald Stovall
Phone number
205-655-1991
Date
3/12/2010
Drainage area
Bioretention basin #5
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A'I'FS/(12'60'60)
Pond Area 2940 Pond Length 105
Max. Infiltration Rate 2.4 Pond Width 1 28
Factor of Safety 10
Q= 1.63 cfs
Using the acquired Flow rate, calculate the single pipe diameter per the requirements.
D=16((Q`n)/S"0.5)A3/8
D=DIAM.
PIPE
Q(cfs)
1.63
n(pvc)
0.011
S(ft/ft)
0.005
D= 9.57 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9,11
3
6.66
4
10,13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 10' has been added to each
dimension to accound for 5:1 side slopes.

f , :.
AMA`
NCDENR
Permit Number, ram- t/6/0//D2.
(m be Provided by OWQ)
JIIA0f WATf,
O9
O C
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 IN) must be printed, rifted out and submitted along with all of the required information.
L..PROJECTINFORMATION
Project name
Ft Bragg WT Barracks Complex
Contact name
Donald Stovall
Phone number
205-655.1991
Dale
March 12,2010
Drainage area number
6
11.'DESIGNINFORMATION
Site Characteristics
Drainage area
14,810 N'
Impervious area
7.900 N'
Percent impervious
53.3% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost 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
Whir
Pre -development i-yr, 24-hr peak flow
ft Isec
Post -development 1-yr, 24-hr peak flow
N'/sec
Pre/Post 1-yr. 24-hi peak control
N'/sec
Storage Volume: Non-SAWaters
Minimum volume required
654.0 N'
Volume provided
710.0 ft'
OK
Storage Volume: SA Waters
1.5' runoff volume
ft1
Predevelopment 1-yr, 24-hr runoff
Nt
Post -development 1-yr, 24-hr runoff
It
Minimum volume required
o it,
Volume provided
fl'
Cell Dimensions
Ponding depth of water
12 inches
OK
Pending depth of water
1.00 N
Surface area of the top of the bioretention cell
710.0 fl'
OK
Length:
71 N
OK
Width:
loft
OK
or. Radius
N
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
24 hr
OK
Drawdown time, total.
36 hr
In -situ soil:
Soil permeability
0.10 irdhr
Insutficent. Increase in@bation rate.
Planting media soil.
Soil permeability
1.00 irdhr
OK
Soil composition
% Sand (by weight)
85%
OK
% Fines (by weght)
10%
OK
% Organic (by weight)
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media
10 limitless)
OK
Form S W401-Bioretention.Rev e
July 70, 2009 Parr I arid 11. Design Summary, Page 1 of

perma Number.
no be pmvlded by DNS
Basin Elevations 3
Temporary pool elevation �377:5D fmsl
Type of bioretention cat (answer *Y* to onf f one of the two following
questions): /
Is this a grassed cell? Y (Y or N) OK
Is this a cell with treeslshrubs? (Y or N)
Planting elevation (top of the mulch or grass sod layer) _348 f nsl 7 1
Depth of mulch 0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil ,316.5@first 3 / S r y O
Planting media depth 2 If
Depth of washed sand below planting med a soft 0.33 it
Are underdrains being installed?
Y (Y or N)
How many clean out pipes are being installed?
2 OK
What factor of safety is used for sizing the underdrains? (See BMP
10 OK
Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 n
the bottom of the cell to account for underdrails
/;?
Bottom of the cell required
,319"lilmsl '+ejr
SHWT elevation
307.5 fnsl
Distance from bottom to SH WT
7.67 it OK
Internal Water Storage Zone (IWS)
Does the design include MS
Elevation of the top of the upturned elbow
Separation of IYJS 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 filler?
N (Y or N)
fnsl
318.5 it
0
0
0 Recommend more species.
y (Yor N) OK
N (Y or N) Excess volume must pass through filter.
It
Does the design use a level spreader to evenly distribute gdvR N (Y or N) Shoo how flow is evenly distributed
Is the BMP located at least 30 feet from surface waters (50 feet it Y (Y or N) OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells? Y (Y or N) OK
Are the vegetated side slopes equal to or less than 3:1? Y (Y or N) OK
Is the BMP located in a proposed drainage easement with access to Y (Y or N) OK
a public Right of Way (ROW)?
Inlet velocity (from treatment system) 3 ft/sec Insufficient inlet velocity unless energy dissipating devices are being
used.
Is the area surrounding the cell likely to undergo development in the N (Y or N) OK
future?
Are the slopes draining to the bioretention cell greater than 20%? N (Y or N) OK
Is the drainage area permanently stabilized? Y (Yor N) OK
Pretreatment Used
(Indicate Type Used with an'X' in the shaded cell)
Gravel and grass
(B'inches gravel followed by 3.51f of grass)
Grassed Swale
Forebay
Other
Form SW4e1-BiMtenlim-Re 8
July 30, 2ooe Parts I and 11. Design Summary, Page 2 of 2

i
UNDERDRAIN SIZING
Project name Fort Bragg WT Barracks Complex
Contact name Donald Stovall
Phone number 205-655-1991
Date
3/12/2010
Drainage area Bioretention basin #6
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A-1-FS/(12-60.60)
Pond Area 710 Pond Length 71
Max. Infiltration Rate 2.4 Pond Width 1 10
Factor of Safety 10
Q= 0.39 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n)/SA0.5)A3/8
D=DIAM.
PIPE
Q(cfs)
1 0.39
n(pvc)
0.011
S(ft/ft)
0.005
D= 5.62 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 10' has been added to each
dimension to accound for 5:1 side slopes.

Permit Number: S kA /000 2
_
(to be provided by DWQ)
^�i+
ri20riG
4 W RipgZi
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 Ill) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Project name
Ft Bragg WI Barracks Complex
Contact name
Donald Stovall
Phone number
205-655-1991
Date
March 12, 2010
Drainage area number
7
II. DESIGN INFORMATION
Site Characteristics
Drainage area
13,939 ffz
Impervious area
7,810 ft'
Percent impervious
56.0%
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
Wisec
Post -development 1-yr, 24-hr peak flow
ft'/sec
Pre/Post 1-yr, 24-hr peak control
ft�/sec
Storage Volume: Non -SA Waters
Minimum volume required
644.0 ft'
Volume provided
1,024.0 fli OK
Storage Volume: SA Waters
1.5' runoff volume
13
Pre -development 1-yr, 24-hr runoff
rya
Post -development 1-yr, 24-hr runoff
rya
Minimum volume required
0 W
Volume provided
ry3
Cell Dimensions
Ponding depth of water
12 inches
OK
Printing depth of water
1.00 If
Surface area of the top of the biorelention cell
1,024.0 ft2
OK
Length:
64 ft
OK
Width:
16 ft
OK
-or- Radius
it
Media and Soils Summary
Drawdown time, ported volume
12 hr
OK
Drawdown time, to 24 inches below surface
24 hr
OK
Drawdown time, total:
36 hr
In -situ soil.
Soil permeability
0.10 inmr
Insufficient, Increase infiltration rate.
Planting media soil:
Soil permeability
1.00 in/hr
OK
Soil composition
%Sand (by weight)
85%
OK
%Fines (by weight)
10%
OK
• Organic (by weght)
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media
10 (unitless)
OK
Form SW401-Bioretenlion-Rev.a
July 30, 2009
Parts I and 11. Design Summary, Page 1 of 2

Basin Elevations
Permit Number:
(to be provided by DWQ)
Temporary pool elevation
317.50 fmsl
Type of bioretenlion cell (answer 'Y' to only one of the two following
questions):
Is this a grassed cell?
Y (Y or N)
Is this a cell with trees/shrubs?
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
316.50 fmsl
Depth of mulch
0 inches
Bottom of the planting media soil
314.50 trust
Planting media depth
2 it
Depth of washed sand below planting media soil
0.33 fl
Are underdrains being installed?
Y (Y or N)
Insufficient mulch depth, unless installing grassed cell.
How many clean out pipes are being installed?
2 OK
What factor of safety is used for sizing the underdrains? (See BMP
Manual Section 12.3.6)
10 OK
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
1 fit
Bottom of the cell required
313.17 fmsl
SHWT elevation
307.5 fmsl
Distance from bottom to SHWT
5.67 ft OK
Internal Water Storage Zone (IWS)
Does the design include IWS
N (Y or N)
Elevation of the top of the upturned elbow
first
Separation of IWS and Surface
316.5It
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
0 Recommend more species.
Additional Information
Does volume in excess of the design volume bypass the y (Y or N) OK
bioretenlion cell?
Does volume in excess of the design volume Bow evenly distributed N (Y or N) Excess volume must pass through filter.
through a vegetated filter?
What is the length of the vegetated filter? it
Does the design use a level spreader to evenly distribute flow?
N
(Y or N)
Show how flow is evenly distributed
Is the BMP located at least 30 feet from surface waters (50 feet if
y
(Y or N)
OK
SA waters)?
Is the BMP located at least 100 feel from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access to
Y
(Y or N)
OK
a public Right of Way (ROW)?
Inlet velocity (from treatment system) 3 f /sec Insufficient inlet velocity unless energy dissipating devices are being
used.
Is the area surrounding the cell likely to undergo development in the
future?
Are the slopes draining to the bioretenlion cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an in the shaded cell)
Gravel and grass
(8'inches gravel followed by 3-5 It of grass)
Grassed Swale
Forebay
Other
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
Form SW401-Bioretention-Rev.8
July 30, 2009
Parts I and I. Design Summary, Page 2 of 2

UNDERDRAIN SIZING
Project name
Contact name
Phone number
Date
Fort Bragg WT Barracks Complex
Donald Stovall
205-655-1991
3/12/2010
Drainage area Bioretention basin #7
Using the maximum allowable infiltration rate of the planting soil, determine the flowrate coming to the
underdrain.
Q=A' I'FS/(12-60.60)
Pond Area 1024 Pond Length 64
Max. Infiltration Rate 2.4 Pond Width 1 16
Factor of Safety 10
Q= 0.57 cfs
Using the acquired flow rate, calculate the single pipe diameter per the requirements.
D=16((Q' n)/S^0.5)^ 3/8
D=DIAM.
PIPE
Q(cfs)
1 0.57
n(pvc)
1 0.011
Soft)
0.005
ID= 6.44 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 19 has been added to each
dimension to accound for 5:1 side slopes.

T
NCDENR
Pertnil Number' St'✓6%ah�2
(to be "vlded by Ow0)
of W x rF,19
3d' OG
9
O
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This loan must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, lolled out and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Donald Stovall
205-655-I991
If. DESIGN. INFORMATION
Site Characteristics
Drainage area
15,682 fl'
Impervious area
9.821 g'
Percent impervious
62.6% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flow required?
N (Y or N)
1-yr. 24-hr runoff depth
in
i-yr, 24-hr intensity
inlhr
Pre -development 1-yr, 24-hr peak flow
fltlsec
Post -development 1-yr, 24-hr peak flow
lot/sec
Pre/Post I-yr, 24-hr peak control
fltlsec
Storage Volume: Non-SAWaters
Minimum volume required
802.0 "1
Volume provided
1,024.0 fl'
OK
Storage Volume: SAWaters
1.5, runoff volume
It
Pre -development 1-yr, 24-hr runoff
to
Post -development 1-yr, 24-hr runoff
61
Minimum volume required
0 It,
Volume provided
to
Cell Dimensions
Pending depth of water
12 inches
OK
Ponding depth of water
1.001t
Surface area of the top of the bimetention cell
1,024.0 h'
OK
Length:
64 ft
OK
Width:
16 it
OK
-or- Radius
h
Media and Soils Summary
Dmwdown time, ponded volume
12 hr
OK
Dmwdown time, to 24 inches below surface
24 hr
OK
Drawdown time, lotab
36 hr
In -situ sod
Soil permeability
0,10 inPor
Insufficient. Increase infiltration rate.
Planting media soil.
Soil permeability
1.00 inihr
OK
Soil composition
% Sand (by weight)
85%
OK
% Fines (by weight)
10%
OK
% Organic (by weight)
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media 10 (unitless) OK
Form SW6ol-Bieretennon-Rev 8
July 30. 20013 Pans I and 11, Design Summary. Page 1 W 2

Permit
flo beprovided oy DWO)
Basin Elevations
Temporary pool elevation
317.50 fmsl
Type of bioretention cell (answer 'Y' to only one of the two following
questions):
Is this a grassed cell?
Y (Y or N) OK
Is this a cell with treestshmbs?
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
316.50 fist
Depth of mulch
0 inches Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil
314.50 fist
Planting media depth
2 It
Depth of unshed sand below planting media soil
0,330
Are underdrains being installed?
Y (Y or N)
Haw many dean out pipes are being installed?
2 OK
What factor of safety is used for sizing the underdrains? (See BMP
Manual Section 12.3,6)
10 OK
Additional distance between the bottom of the planting media and
bottom of the cell to account for underdrains
1 itthe
Bottom of the cell required
313.17 Insl
SHWT elevation
307.5 fnsl
Distance from bottom to SHWT
5.67 B OK
Internal Water Storage Zone (IWS)
Does the design include IWS
N (Y or N)
Elevation of the top of the upturned elbow
fmsl
Separation of IWS and Surface
316.5 it
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
0
Recommend more species.
Additional Information
Does volume in excess of the design volume bypass the
(y or N)
OK
bioreention cell?
y
Does volume in excess of the design volume flow evenly distributed
N (Y or N)
Excess volume must pass through filter.
through a vegetated filter?
What is the length of the vegetated filter?
it
Does the design use a level spreader to evenly distribute flow?
N (Y or N)
Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
Y (Y or N)
OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Y (Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y (Y or N)
OK
Is the BMP located in a proposed drainage easement with access to
Y (Y or N)
OK
a public Right of Way (ROW)?
Inlet velocity (from treatment system) 3 fUsec Insufficient inlet velocity unless energy dissipating devices are being
used.
Is the area surrounding the cell likely to undergo development in the N (Y or N) OK
future?
Are the slopes draining to the bioretention cell greater than 201/6? N (Y or N) OK
Is the drainage area permanently stabilized? Y (Y or N) OK
Pretreatment Used
(Indicate Type Used with an'%' in the shaded cell)
Gravel and grass
(B'inches gravel followed by 3-5 it of grass)
Grassed swale
Forebay
Other
Forth SW401-BuwetenniomReva
July 30, 2009 Pans I and It. Design Summery, Page 2 of 2

UNDERDRAIN SIZING
Project name
Contact name
Phone number
Date
Fort Bragg WT Barracks Complex
Donald Stovall
205-655-1991
3/12/2010
Drainage area Bioretention basin #8
Using the maximum allowable infiltration rate of the planting soil, determine the Flowrate coming to the
underdrain.
Q=A' I'FS/(12'60'60)
Pond Area 1024 Pond Length
Max. Infiltration Rate 2.4 Pond Width
16
Factor of Safety 10
Q= 0.57 cfs
Using the acquired Flow rate, calculate the single pipe diameter per the requirements.
D=16((Q'n )/SA0.5 )A 3/8
D=DIAM.
PIPE
Q(cfs)
0.57
n(pvc)
0.011
S(ft/tt)
0.005
D= 6.44 inches
Use the provided chart to select pipe size and quantity.
If D is less than
# of 4" pipes
If D is less than
# of 6" pipes
5.13
2
7.84
2
5.95
3
9.11
3
6.66
4
10.13
4
7.22
5
7.75
6
8.2
7
Note: Basin dimensions given on plans are the bottom of the pond. Per NCDENR requirements, the
area used for this calculation is the top of the temporary surface, so 10' has been added to each
dimension to accound for 5:1 side slopes.