SW6140301_APPLICATION_20141014

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

DWUSEONLY ca
Q
,
Date Received
Fee Paid
Permit Number
'I
S 6l Lf 030
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph lI - Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M t Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied far use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.): -- - - .
SOF Battalion Ooerations Complex
2. Location of Project (street address):
D Street, South of Chicken Road OCT 1 4 2014
City:Fort Bragg County:Cumberland Zip:28310-5000
3. Directions to project (from nearest major intersection):
Enter off of Murchson Road (Routes 87, 210) onto Bragg Boulavard. Go south on Bragg Blvd. 2.5 miles to
Gruber Drive. Turn right on Gruber Drive and go 2.2 miles to Reilly Street. Turn left on Reilly Street and go
1.5 miles to Chicken Road. Turn Right on Chicken Road and go 2.3 miles to Morganton Road. Morganton
Road will turn into D Street where the site is located.
4. Latitude:35* 04' 52" N Longitude:79° 02' 05" 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):
❑LAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 33.00 ac of Disturbed Area
❑404/i 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 permitFB-SOF Battalion Operations Facility, ID: CUMBE-2014-091,1/9/14
Erosion Control Letter of Approval
Fonn SWU-101 Version 07Jun2010 Page I of

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 & Titie:Mr. David Heins, Environmental Division Chief (DPW)
b.Contact information for person listed in item la above:
Street Address:2175 Reilly Road Stop A
City:Fort Bragg State:NC Zip:28310-5000
Mailing Address (if applicable):2175 Reilly Road Stop A
City:Fort Bragg State: NC Zip:28310-5000
Phone: (910 ) 396-8207
Email:[e-mail]
Fax: (910 ) 907-2420
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b.Contact information for person listed in item 2a above:
Street Address:
City: State: Zip:
Mailing Address (if applicable):
City: State: Zip:
Phone: ( ) Fax: ( )
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:F6rtBragg State:NC Zip:28310-5000
Phone: (910 ) 908-5286
Emad:lee. p.ward.civ®mail. mil
4. Local jurisdiction for building permits:
Point of
Fax: (910 ) 907-2420
Phone #:
Form SWU-101 Version 07Jun2010 Page 2 of 7

IV: PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater runoff will be treated in three Bioretention basins and one Wet Pond. Grass swales and channels
will be utilized in areas around the site to convey runoff to the Bioretention basins. Pretreatment for these
basins will be by the use of grassed swales as well as a gravel and grass strip around the parking lot A pied
system with grass swales leading to the inlets of the system will outlet into the proposed Wet Pond. The
pretreatment for the Wet Pond will be accomplished through the use of forebays.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area: 28.34 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area': 28.34 acres
Total project area shall be calculated to exclude the following the normal pool of imyounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NM line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 57.37 %
9. How many drainage areas does the project have?4 (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 07Jun2010 Page 3 of 7

vr+u.+ y
;Basrnlnfonnahon 4 3, F;,
..na-., c-e
x•Dram etArea lh
,Drarna etAfea 2r
n.n; y : ;-r,
Drama a Area 3
}Drama a Area4e
Receiving Stream Name
unnamed trib of
Stewart
Creek
unnamed trib of
Stewart
Creek
unnamed trib of
Stewart
Creek
unnamed trib of
Stewart
Creek
Stream Class *.
C
C
C
C
Stream Index Number *
18-21-1
18-21-1
18-21-1
18-21-1
Total Drainage Area (so
98,881
94,525
392,040
649,044
On -site Drainage Area (so
98,881
94,525
392,040
649,044
Off -site Drainage Area (sf)
0
0
0
0
Proposed Impervious Area`* (so
39,640
47,480
303,613
317,552
% Impervious Area" (total
40.1.
50.2
77.4
48.92
luWrvrou "Wrface Hies
qDrauia e_'_'A_;ea i
,`•Dr_a'uur e``_.S_ Tea 2„
ftDr`aiiie a Ar`ea;9,
,.Drains` a Area' 4:g
On -site Buildings/Lots (so
0
0
42,094
46,620
On -site Streets (so
38,940
21,610
0
80,966
On -site Parkin (so
0
22,670
253,619
165,966
On -site Sidewalks (so
700
3,200
7,900
24,000
Other on -site (so
0
0
0
0
Future (so
0
0
0
0
Off -site (so
0
0
0
0
Existing BUA*** (so
0
0
0
0
Total (so:
39,640
47,480
303,613
317,552
* Stream Class and Index Number can be determined at: http. portal.ncdenr.org/webhvq&s/csu/classifications
*" Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
***Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new B UA.
11. How was the off -site impervious area listed above determined? Provide documentation. No off -site
impervious areas present.
Projects 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 stormwater 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
fromh!W://portal.ncdenr.org/web/wq/ws/su/bml2-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available from hftp://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. Thecomplete
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 http://portal.ncdenr.org/web/wq/ws/su/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does.
1. Original and one copy of the Stormwater Management Permit Application Form. /Ir
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.
Form SWU-101 Version 07Jun2010 Page 4 of 7

4. ' Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
hhtt :/ /www.envhelp.org/pages/`onestoMxpress.html for 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.)
5. A detailed narrative (one to two pages) describing the stormwater'treatment/ management for
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 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.
b. Engineer and firm.
c: Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f: 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.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x11" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHWT prior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: Page No:
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and, positions held
by the persons listed in Contact Information, item 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.
http:/ /www.secretary.state.nc.us/Corporations/CSearch.aspxx
Form SWU-.101 Version 07Jun2010 Page 5 of 7

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
hqp://portal.ncdenr.org/web/wg/ws/su/statesw/forms docs. 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.
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:Derek Westfall
Consulting Firm: Engineering Design Technologies Inc
Mailing Address:1705 Enterprise Way
City:Marietta State:GA Zip:30067
Phone: [phone] Fax: (770 ) 988-0300
Email:[e-mail]
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name 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
f ) with (print or type name of organization listed in
Contact Information, item ld) 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.
Form SWU-101 Version 07Jun2010 Page 6 of 7

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.
Signature: Date:
L 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 application for
a stormwater permit Witness my hand and official seal,
SEAL
My commission expires
X. APPLICANTS CERTIFICATION
L (print or type name of person listed in Contact Information, item la) Mr. David Heins
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicableestorrnawater rules un er 15A NCAC 2H .1000, SL 2006-246 (Ph.11- Post Construction) or SL 2008-211.
�f -/11 �� `10,2p/
Signature:l� a„-Piew.� Date:
L
a Notary Public for the State of
of
do hereby certify that personally appeared
before me this _ day of and acknowledge the due execution of the application for
a stormwater permit Witness my hand and official seal,
SEAL
My commission
Fonn S WU-101 Version 071un2010 Page 7 of 7

Permit Number:
(to be provided by D WQ)
<,O�F/ AT^ ;qa
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 III) must be printed, filled out and submitted along with all of the required information.
1.' PROJECT INFORMATION
Project name SOF Battalion Operation Complex
Contact name Derek Westfall -
Phone number 770-988-0400
Date January 21, 2014
Drainage area number Basin 1
IL...f1FSIl:N':INFARMCTIr)Nm £*
Drainage area
Impervious area
Percent impervious
Design rainfall depth
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
Funding depth of water
Surface area of the top of the biorelention 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 volume)
• Fines (by volume)
• Organic (by volume)
98,881 ft, ', I OCT 1 4 2014 11
39,640 ft' I t
1.5 inch
Y (Y or N) '' I
3.1 in i tt. rr�
0.36 in/hr t �"
0.089 ft'/sec
1.969 ft'/sec
1.880 ft'/sec '
5,179.0 fta
6,119.0'(t1 OK
CIIAR����/i
0 0y..9'
ft3
OQ
7.
ft'
=_ to E L —
0 ft'
—
R'
i
i�F •.'!'GIN P \\
12 inches OKJ\\\\
1.00 ft
6,119.0 fit OK
] /J
3301f OK
20 ft OK
It
6 hr OK
18 hr OK
24 hr
0.27 m/hr Insufficient. Increase infiltration rate or include underdrains.
2.00 in/hr
OK
85%
OK
to%
OK
5%
OK
Total: 100%
Phosphorus Index (P-Index) of media 20 (unitless) OK
Form SW401-Bioretention-Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 1 of 2

Permit Number:
1 (to be provided by DWQ)
Basin Elevations
Temporary pool elevation
244.00 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 trees/shrubs? N
(Y or N)
Planting elevation (lop of the mulch or grass sod layer)
243 fast
Depth of mulch
0 inches
Insufficient mulch depth, unless installing grassed cell.
Bottom of the planting media soil
241 fmsl
Planting media depth
2 ft
Depth of washed sand below planting media soil
0.33 ft
Are underdrains being installed? Y
(Y or N)
How many clean out pipes are being installed?
8
OK
What factor of safely is used for sizing the underdrains? (See
10
OK
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
239.67 fmsl
SHWT elevation
237 foist
Distance from bottom to SH WT
2,67 ft
OK
Internal Water Storage Zone (IWS)
Does the design include IWS N (Y or N)
Elevation of the top of the upturned elbow fmsl
Separation of IWS and Surface 243 ft
Planting Plan
Number of tree species 0
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the Y (Y or N) OK
bioretention cell?
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? 0 it
Does the design use a level spreader to evenly distribute Flow? Y (Y or N) Submit a level spreader supplement.
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 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
Y (Y or N) OK
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an'X' in the shaded cell)
Gravel and grass
(81nches gravel followed by 3-5 it of grass)
Grassed Swale
Forebay
Other
2. ft/sec Insufficient inlet velocity unless energy dissipating devices are
being used.
N (Y or N) OK
N (Y or N) OK
Y (YorN) OK
X OK
Form SW401-Biarelenlion-Rev.e
June 25, 2010
Parts I and II. Design Summary, Page 2 of 2

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will betaken 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 s`et'locahon—
and will be available upon request. jl
OCT 14 2014
Inspection activities shall be performed as follows. Any problems that are found shall
ibe repaired immediately.
BMP element:
Potentialproblems:
How I will remediate the roblem
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 Page 1 of 4

BMP element:
The pretreatment area
The bioret
vegetation
The bioretention cell:
soils and mulch
Potential
Flow is b,
pretreatment area and/or
gullies have formed.
Sediment has accumulated to
a depth greater than three
inches.
Erosion has occurred.
Weeds 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 I 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 time 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:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Fort Bragg SOF Battalion Operations Complex
BMP drainage area number:
Print name:Mr. David Heins
Title:Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Ston A Fort Brace NC 28310-5000
Date: / 4-
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 expires
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4

r( , r i
Permit Number:
(to be provided by DWq)
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 III) must be printed, filled out and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
SOF Battalion Op
Derek Westfall
770-988-0400
January 21, 2014
Basin 3
IL:DESIGKINFORMATION ^+ _� '
Site Characteristics - - - —
Drainage area 392,040 h2 _
Impervious area 303,613 ft' -
Percent impervious 77.4% % 1
Design rainfall depth 1.5 inch I OCT j 2��4
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•SAWatefs
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
Fording depth of water
Fording 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:
Sail permeability
Planting media soil:
Soil permeability
Soil composition
• Sand (by volume)
• Fines (by volume)
• Organic (by volume)
Phosphorus Index (P-Index) of media
Form SW401-Bioretention-Rev.8
June 25, 2010
Y (Y or N)
3.1 in
0.36 in/hr
0.089 ft'/sec
22.570 ft'Isec
I I 1 /I7j7
22.481 ft'/Sec
\��I111
\��� q N, C At? -
37,339.0 ft'
2.�O Oti.2
38,643.0 ft' OK
_� y�
S L �'
- 4
3
:FQ .ft
NE
GIft
�/WESIFP��\
If
0 ft'
0/11110
ft'
0 as;//`f
12 inches
OK
1.00 ft
38,643.0 ftz
OK
380 If
OK
,104If
It
OK
6 hr OK
18 hr OK
24 hr
0.27 in/hr Insufficient, Increase infiltration rate or include underdrains.
2.00 in/hr OK
85% OK
10% OK
5% OK
Total: 100%
(unitless)
Parts I and II. Design Summary, Page 1 of 2

Basin Elevations
Temporary pool elevation
Type of biorelention 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 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
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feel if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a proposed drainage easement with access
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(flinches gravel followed by 3-5 ft of grass)
Grassed swale
Forebay
Other
Permit Number:
^ (to be Provided by DWQJ
21'T✓l `
20.00 f sl
Y (Y or N) OK
N (Y or N)
242 fmsl
0 inches Insufficient mulch depth, unless installing grassed cell.
240 fmsl
2 ft
0.33333 ft
Y (Y or N)
40 OK
10 OK
1 ft
238.66667 fmsl
236 first
2.66667 It OK
N (Y or N)
0 fmsl
242 ft OK
0
Y (Y or N) OK
N (Y or N) Excess volume must pass through filler.
0 ft
Y (Y or N) Submit a level spreader supplement.
Y (Y or N) OK
Y (YorN) OK
Y (Y or N) OK
Y (Y or N) OK
2 ft/sec Insufficient inlet velocity unless energy dissipating devices are
being used.
N (Y or N) OK
�1 •9
Y (Y or N) OK
X OK
Form SW401-Bioretention-Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 2 of 2

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will be taken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a_ Coastal
County). Records of operation and maintenance will be kept in a known set locations
and will be available upon request. Oct 1 4
2014
Inspection activities shall be performed as follows. Any problems that are fbun4 s14a1101
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 Page 1 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which
six months after planting.
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new planting media.
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
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party. .
Project name:Fort Bragg SOP Battalion Operations Complex
BMP drainage area number:3
Print name:Mr. David Heins
Title:Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Stop A Fort Bragg, NC 28310-5000
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this _
day of and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
Form SW401-Bioretention I&M-Rev. 2

Permit
�/=
NCDENR
(to be provided by DWQ)
, (. WATE9
y r
r
O I
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Derek
770-988-0400
January 21, 2014
Basin 2
IC DESIGN, INFORMATION ?,.1 . r �.*`s ] "" - .. 4:1»
Site Characteristics
Drainage area 94,525 f 2
Impervious area 47,480. it=
Percent impervious 50.2% % - —
Design rainfall depth 1.5 Inch -
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
Y (Y or N)
1-yr, 24-hr runoff depth
3.1 in
1-yr, 24-hr intensity
0.36 in/hr
Pre -development 1-yr, 24-hr peak flow
0,089 ft'/sec
Post -development 1-yr, 24-hr peak flow
3.335 ft'/sec
Pre/Post 1-yr, 24-hr peak control
3.246 ft'/sec
Storage Volume: Non -SA Waters
Minimum volume required
6,051.0 ft'
Volume provided
6,152.0 ft'
Storage Volume: SA Waters
1.5" runoff volume
ft'
Pre -development 1-yr, 24-hr runoff
ry'
Post -development 1-yr, 24-hr runoff
- It'
Minimum volume required
0 ft'
Volume provided
ft'
Cell Dimensions
Ponding depth of water
12 inches
Fondling depth of water
1,00 ft
Surface area of the top of the bioretention cell
6,122,0 ft2
Length:
255 ft
Width:
24 ft
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
6 hr
Drawdown time, to 24 inches below surface
18 hr
Drawdown time, total:
24 hr
In -situ soil.
Soil permeability
027 in/hr
Planting media soil:
Soil permeability
2.00 in/hr
Soil composition
% Sand (by volume)
85%
% Fines (by volume)
10%
% Organic (by volume)
5%
Total: 100%
OK
OK
OK
OK
OK
OK
OK
OCT 14 2014 II
EAL
0 9
GIN
"y W/
Insufficient. Increase infiltration rate or include underdrains.
Co79
OK
OK
OK
Phosphorus Index (P-Index) of media 20 (unitless) OK
Form SW401-Bioretenlion-Rev.8
June 25, 2010
Parts I and It. Design Summary, Page 1 of 2

. 1,
Permit Number:
(to be provided by DWQ)
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 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
bioretention cell?
Does volume in excess of the design volume Flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a proposed drainage easement with access
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X' in the shaded cell)
Gravel and grass
(flinches gravel followed by 3-5 it of grass)
Grassed Swale
Forebay
Other
254.00 frost
Y (YorN) OK
(Y or N)
248 frost
0 inches Insufficient mulch depth, unless installing grassed cell.
246 frost
2ff
0.3333 It
Y (YorN)
8 OK
10 OK
1 If
244.6667 fmsl
242 fmsl
2.6667 It OK
Y (YorN)
fmsl
248 it
0
Y (Y or N) OK
N (Y or N) Excess volume must pass through filter.
0 It
Y
(Y or N) Submit a level spreader supplement.
(Y or N)
OK
OK
_(YorN)
(Y or N)
OK
(Y or N)
OK
2 ft/sec
Insufficient inlet velocity unless energy dissipating devices are
_
being used.
(YorN)
OK
X
(Y or N) OK
(Y or N) OK
OK
Form SW401-Bioretention-Rev.9
June 25, 2010 Parts I and II. Design Summary, Page 2 of 2

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell. _
— Special care will betaken 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 OCT 14 2014
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 t 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 time 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 SW401-13ioretention O&M-Rev.3 Page 1 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which
six months after planting.
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new planting media.
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-Rev3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Fort Bragg SOF Battalion Operations Complex
BMP drainage area
Print name:Mr. David Heins
Title:Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Stop A Fort Bragg, NC 28310-5000
Date: 4-/ "t &YA ) 4-
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 I , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires
Form .SW401-Bioretention I&M-Rev. 2 Page 4 of 4

Permit No.
(to be provided by DWT)
A of w a rE,9
MI � O�OG
{'/- I
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
UPROJECT"INFORMATION: - -ti- • .,_. , -.;-: m' S--- -.3 r <. _
Project name SOF Battalion Operations Complex Fort Bragg, North Carolina
Contact person Derek westtall
Phone number 770-988-0400
Dale 1/21/2014
Drainage area number BASIN 4
Drainage area
Impervious area, post -development
impervious
Design rainfall depth
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hrrunoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the 1yr 24hr storm peak flaw required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall intensity: 1-yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flaw
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approxat the pen. pool elevation)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
649,044 ft2 I
317,553 ry2 I OCT 14 2014 !,
48.93 % 1
1.5
40,577 fO r!".• k.�. 1 !�
256,771 ft3 7
Of, volume provided is equal to or in excess of volume required.
ft3
ft3
ft3
ft3
ft3
Y (Y or N)
3.1 in
0.35 (unitless)
0.64 (unitless)
0.13. in/hr OK
0.04 ft3lsec
21.53 ff3/sec
21.49 ft3lsec
234.00 fmsl
226.50 fmsl
219.50 fmsl
227.00 first
226.00 first
221.00 host
220.00 fmsl
1.00 It
Y (Y or N)
234.0 fmsl OK
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Form SW401-Wet Detention Basin -Rev 9.4/18/12 Parts I. 811. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWD)
II; DESIGN INFORMATION ,,, � "r '<x's.:Qo j,"F< ``w 'K ;': - `
Surface Areas
Area, temporary pool
38,447 ft'
Area REQUIRED, permanent pool
12.137 ft2
SAIDA ratio
1.87 (unitless)
Area PROVIDED, permanent pool, A.-P.
17,811 It,
OK
Area, bottom of 10ft vegetated shelf, Awt u„r
14,487 ft'
Area, sediment cleanout, top elevation (bottom of pond), Ay_,„
5,779 ft`
Volumes
Volume, temporary pool
256,771 fts
OK
Volume, permanent pool, Vn,,,,-Pw
57,976 ft"
Volume, forebay (sum of forebays if more than one forebay)
12,383 ft'
Forebay % of permanent pool volume
21.4 h Y
OK
SAIDA Table Data
Design TSS removal
90
Coastal SAIDA Table Used?
N (Y or N)
Mountain/Piedmont SAIDA Table Used?
Y (Y or N)
SAIDA ratio
1.87 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, Vp,,,,_,y
57,976 ft'
Area provided, permanent pool, A�_xs
17 811 ft'
Average depth calculated
It
Need 3 ft min.
Average depth used in SAIDA, d,,,, (Round to nearest 0.5ft)
It
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pool, Ap -Pw
17,811 ft`
Area, bottom of 1Oft vegetated shelf, Aye v„ij
14,487 ft`
Area, sediment cleanout, top elevation (bottom of pond), Aw[�
5,779 ft'
'Depth' (distance b/w bottom of 1Oft shelf and lop of sediment)
5.00 ft
Average depth calculated
6.16 It
OK
Average depth used in SAIDA, it,,, (Round to down to nearest 0.5ft)
6.0 ft
OK
Drawdown Calculations
Drawdown through orifice?
y (Y or N)
Do not enter data for both an orifice and a weir.
Diameter of orifice (it circular)
6.00in
Area of orifice (if -non -circular)
in
Coefficient of discharge (CD)
0.60 (unitless)
Driving head (H,)
7,50 ft
Drawdown through weir?
Y (Y or N)
Do not enter data for both an orifice and a weir.
Weir type
Broad Crested (unitless)
Coefficient of discharge (C,)
3.33 (unitless)
Length of weir (L)
12 It
Driving head (H)
0.7 It
Pre -development 1-yr, 24-hr peak flow
0.04 ft2lsec
Post -development 1-yr, 24-hr peak flow
21.53 ft2lsec
Storage volume discharge rate (through discharge orifice or weir)
0.01 ft'/sec
Storage volume drawdown time
2.00 days
OK, draws down in 2-5 days.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 ft
OK
Length of flowpalh to width ratio
7 :1
OK
Length to width ratio
5.0 :1
OK
Trash rack for overflow & orifice?
Y (Y or N)
OK
Freeboard provided
1.0 ft
OK
Vegetated filler provided?
N (Y or N)
OK
Recorded drainage easement provided?
N (Y or N)
Insufficient. Recorded drainage easement required.
Capures all runoff at ultimate build -out?
Y (Y or N)
OK
Drain mechanism for maintenance or emergencies is:
Pump out the pond
Form SW401-Wet Detention Basin-Rev.9-4118/12 Parts 1. & 11. Design Summary, Page 2 of 2

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet
This system (check one): I OCT 14 2014
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
— Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
— Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a
Coastal County). Records of operation and maintenance should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page I of 5

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 5

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 1 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 1 feet in the forebay, the sediment shall
be removed.
Sediment Removal
Bottom
221.0 I 1
-----------------
FOREBAY
BASIN DIAGRAM
ill in the blanks)
ft Min.
Sediment
Storage
Permanent Pool Elevation 226.5
Sediment Removal Elevation 221.0 volume
------------------------ ------
Bottom Elevation
MAIN POND
Sediment
Storage
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 5

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Form SW40I-Wet Detention Basin O&M-Rev.4 Page 4 of 5

Permit Number:
(to be provided by DWQ)
1 acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify D WQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Fort Bragg SOF Battalion Operations Comnlex
BMP drainage area
Print name:Mr. David Heins
Title:Directorate of Public Works/Chief-Environmental Division
Address:2175 Reilly Road Stop A Fort Braga 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.
1, , 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 wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission expires
Form SW401-Wet Detention Basin O&M-Rev.4 Page 5 of 5