SW8091108_CURRENT PERMIT_20200512

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE.7�J�5
a "
YYYYM M D D

Burd, Tina J
From: Burd, Tina J
Sent: Tuesday, May 19, 2020 2:00 PM
To: '[e-mail]'; '[e-mail]'
Subject: SW8 091108 - Consolidated Information Technology/Telecommunication Complex
Attachments: SW8 091108 - Consolidated Information Technology Telecommunication Compl.... pdf
The Wilmington Regional Office of the Division of Energy, Mineral and Land Resources (Stormwater Section) completed
their review of the Express Stormwater Permit Application for the subject project. Attached is the cover letter and
permit issued on May 12, 2020 that will be mailed separately, along with any other supporting documents.
Please direct any questions to your reviewer.
b0'.- O OW'TOYTN'IS EMAIL.:
Best Regards,
Tina Burd 1
Administrative Associate II
Wilmington Regional Office
Division of Environmental Assistance & Customer Service
Phone [phone]
NCDEQ
Wilmington Regional Office
127 Cardinal Drive Ext.
Wilmington, NC 28405
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
1

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BR1AN WRENN
Acting Director
May 12, 2020
NORTH CAROUNA
Environmental Quality
MC13 Camp Lejeune
Attn: Commanding Officer
c/o Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeune, NC 28542
Subject: State Stormwater Management Permit No. SW8 091108
Consolidated Information Technology/Telecommunication Complex
High Density Project
Onslow County
Dear Mr. Paul:
The Wilmington Regional Office received a complete, modified State Stormwater Management Permit
Application for the subject project on May 11, 2020. Staff review of the plans and specifications has
determined that the project, as proposed, complies with the Stormwater Regulations set forth in Title 15A
NCAC 02H_ 1000 as amended by Session Law (SL) 2008-21 1. We are hereby forwarding modified Permit No.
SW8 091108 dated May 12, 2020, for the construction of the built -upon areas (BUA) and stormwater control
measures (SCMs) associated with the subject project.
This permit shall be effective from the date of issuance until November 23, 2020 and the project shall be
subject to the conditions and limitations as specified therein and does not supersede any other agency permit
that may be required. Failure to comply with these requirements will result in future compliance problems.
Please note that this permit is not transferable except after notice to and approval by the Division_
Please refer to Attachment C for a detailed description of the current proposed major modification and a list of
all the past modifications approved during the effective period of the permit.
This cover letter, attachments, and all documents on file with DEMLR shall be considered part of this permit
and is herein incorporated by reference. Please add the attached plans to the previously approved plan set.
Please replace the previous application (SWU-101 and supplements with the attached modified versions.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH).
The written petition must conform to Chapter 150E of the North Carolina General Statutes and must be filed
with the OAH within thirty (30) days of receipt of this permit You should contact the OAH with all questions
regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service
Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at
www.NCOAH.com. Unless such demands are made this permit shall be final and binding.
If you have any questions concerning this permit, please contact Christine Hall in the Wilmington Regional
Office, at [phone] or [e-mail].
Sincerely,
Brian W enn, Actin trector
Division of Energy, Mineral and Land Resources
Enclosures: Attachment C — Permitting History
Application Documents
DEStcanh: 111StormwaterlPermits & Projects120091091 108 HD12020 05 permit 091108
cc: Brian Scott Chewning; Burns & McDonnell
Wilmington Regional Office Stormwater File
D E QNorth Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Wilmington Regional office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
NORTH CARCUNe
od -- 910.796.7215

State Stormwater Management Systems
Permit No. SW8 091108
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
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
USMCB Camp Lejeune
Consolidated Information Technology/Telecommunication Complex Bldg 24, P-1311
Building 24 Area, McHugh Blvd, Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of twelve (12) sand filters and one (1) bioretention
basin in compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000
(hereafter jointly and severally referred to as the "stormwater rules`) and the approved
stormwater management plans and specifications and other supporting data as attached and on
file with and approved by the Division of Energy, Mineral and Land Resources and considered
an enforceable part of this permit.
This permit shall be effective from the date of issuance until November 23, 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 Sections 1.8 and 1.9 of this permit. The sand filters and bioretention basins
labeled BMP 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13 have been designed to handle
the runoff from 46,174, 18,971, 91,476, 35,719, 58,370, 16,553, 13,069, 23,522, 15,422,
98,113, 4,356, 26,831, and 8,276 square feet of impervious area, respectively.
The tract will be limited to the amount of built -upon area as indicated in Sections 1.8 and
1.9 of this permit, and per the application documents and the approved plans. The built -
upon area for the designated future development areas shown on the plans within the
drainage area for BMP 5 is limited to 5,184 square feet. This permit does not provide
any allocation of BUA for future development within the other delineated drainage areas.
4. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
Page 2 of 9

State Stormwater Management Systems
Permit No. SW8 091108
5. The project shall maintain a 50' wide vegetated buffer adjacent to surface waters,
measured horizontally from and perpendicular to the normal pool of impounded
structures, the top of banks of each side of rivers and streams and the mean high water
line of tidal waters.
6. All runoff being directed into wetlands shall flow into and through those wetlands at a
non -erosive velocity of 2 fps or less.
7. This permit does not allow for the subdivision and sale of any portion of the property,
except as noted herein. The subdivision of the property will require a permit modification
prior to the subdivision and sale of any lot from this project.
8. The following design elements have been approved for these sand filter stormwater
facilities, and must be provided in the systems at all times
BMP 1
BMP 3
BMP 4
BMP 5
BMP 6
BMP 7
a.
Drainage Area, acres:
2.61
4.24
1.49
4.45
1.12
0.87
Onsite, ft2:
113,692
184,697
64,904
193,842
48,747
37,897
Offsite, ftz:
0
0
0
0
0
0
b.
Total Impervious Surfaces, ftz:
46,174
91,476
35,719
58,370
16,553
13,069
Onsite, ft2:
46,174
91,476
35,719
58,370
16,553
13,069
Offsite, ftz:
0
0
0
0
0
0
c.
Design Storm, inches:
1.5
1.5
1.5
1.5
1.5
1.5
d.
Pre -development 1-yr, 24-hr discharge
rate, cfs:
2.08
4.30
3.03
4.34
1.16
1.92
e.
Sediment Chamber Depth, ft:
1.0
1.0
1.0
1.0
1.0
1.0
f.
Sediment Chamber Bottom Elev
excluding 12' of sediment storage,
fmsl:
13.0
10.0
20.0
12.0
21.0
20.0
g.
Sediment Chamber Surface Area, ftz:
3,410
2,688
2,048
1 2,045
946
544
In.
Bottom of Pervious Weir Elevation,
fmsl:
13.0
10.0
20.0
12.0
21.0
20.0
i.
Total Sand Chamber Depth, ft:
2.5
2.5
2.5
2.5
2.5
2.5
j.
Sand Media Depth, ft:
1.5
1.5
1.5
1.5
1.5
1.5
k.
Sand Chamber Bottom Elev, fmsl:
11.5
8.5
18.5
10.5
19.5
18.5
I.
Sand Chamber Surface Area, ftz:
4,023
5,240
1,304
3,834
1,230
759
m.
Maximum Head on Filter, ft:
1.0
1.0
1 1.0
1.0
1.0
1.0
n.
Top of Po ding Elevation, fmsl:
14.0
11.0
21.0
13.0
22.0
21.0
o.
Permitted Storage Volume, W:
8,205
9,554
4,005
6,767
2,697
1,641
p.
Orifice Diameter, inch:
6
6
6
6
1 6
6
q.
Orifice Flowrate, cfs:
1.63
2.12
0.53
1.55
0.50
0.31
r.
Time to Draw Down, hr:
11
10
16
9
12
12
s.
Seasonal High Water Table, fmsl:
8.9
2.0
11.8
6.7
12.4
15.1
t.
Receiving Stream/River Basin:
Wallace Creek/White Oak
u.
Stream Index Number:
19-20
v.
Classification of Water Body:
SB, NSW
Page 3 of 9

State Stormwater Management Systems
Permit No. SW8 091108
BMP 8
BMP 9
BMP 10
BMP 11
BMP 12
BMP 13
a.
Drainage Area, acres:
1.44
0.71
3.13
0.23
1.30
035
Onsite, ft2:
62,726
30,928
136,343
10,019
52,213
15,246
Offsite, ft2:
0
0
0
0
0
0
b.
Total Impervious Surfaces, ft2:
23,522
15,422
98,113
4,356
26,831
8,276
Onsite, ft2:
23,522
15,422
98,113
4,356
26,831
8,276
Offsite, ft':
D
0
0
0
0
0
c.
Design Storm, inches:
1.5
1.5
1.5
1.5
1.5
1.5
d.
Pre -development 1-yr, 24-hr discharge
rate, cfs:
1.43
0.63
2.23
0.39
1.58
0.56
e.
Sediment Chamber Depth, ft:
1.0
1.0
1.5
1.0
1.0
1.0
f.
Sediment Chamber Bottom Elev
excluding 12" of sediment storage, fmsl:
19.0
18.0
17.5
17.0
17.0
21.5
g.
Sediment Chamber Surface Area, ft2:
873
1,139
1,668
124
789
482
h.
Bottom of Pervious Weir Elevation,
fmsl:
19.0
18.0
17.5
17.0
17.0
21.5
i.
Total Sand Chamber Depth, ft:
2.5
2.5
3.0
2.5
2.5
2.5
j.
Sand Media Depth, ft:
1.5
1.5
1.5
1.5
1.5
1.5
k.
Sand Chamber Bottom Elev, fmsl:
17.5
16.5
16.0
15.5
15.5
20.0
I.
Sand Chamber Surface Area, ft2:
1,288
1,236
4,487
371
1,821
324
m.
Maximum Head on Filter, ft:
1.0
1.0
1.5
1.0
1 0
1.0
n.
Top of Ponding Elevation, fmsl:
20.0
19.0
19.0
18.0
18.0
22.5
o.
Permitted Storage Volume, ft3:
2,580
3,336
13,563
778
3,169
1,428
p.
Orifice Diameter, inch:
6
6
6
6
6
4
q.
Orifice Flowrate, cfs:
0.88
0.50
1.82
0.15
0.74
0.13
r.
Time to Draw Down, hr:
11
14
14
11
9
24
s.
Seasonal High Water Table, fmsl:
12.5
11.0
12.8
12.8
9.7
18.0
t.
Receiving Stream/River Basin:
Wallace Creek/White Oak
U.
Stream Index Number:
19-20
v.
Classification of Water Body:
SB, NSW
9. The following design criteria have been approved for this bioretention basin stormwater
facility, and must be provided in the system at all times:
BMP 2
a.
Drainage Area, acres:
1.60
Onsite, ft2:
61,289
Offsite, ft2:
0
b.
Total Impervious Surfaces, ft2:
18,971
Onsite, ft2:
18,971
Offsite, ft2:
0
c.
Design Storm, inches:
1.5
d.
Max. Ponded Depth, inch:
9
e
TSS removal efficiency:
85%
f.
Seasonal High Water Table, fmsl:
14.0
g.
Media Depth, feet:
2
h.
Planting Elevation, fmsl:
18.0
i.
Surface Area, ft2:
4,800
j.
Basin Dimensions, feet:
235 x 17
k.
Permitted Storage Volume, ft3:
3,584
I.
Temporary Storage Elevation, fmsl:
18.75
m.
Drawdown Time, hours:
17
n.
Type of basin:
Grass
o.
Is an Underdrain provided?
no
p.
Total number of plants provided:
n/a
q.
Receiving Stream/River Basin:
Wallace Creek/White Oak
r.
Stream Index Number:
19-20
s.
Classification of Water Body
SB, NSW
Page 4 of 9

State Stormwater Management Systems
Permit No. SW8 091108
II. SCHEDULE OF COMPLIANCE
The permittee is responsible for verifying that the proposed built -upon area for the entire
project does not exceed the allowable built -upon area. Built upon area includes, but is
not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and
parking areas, but does not include raised, open wood decking, or the water surface of
swimming pools.
2. 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.
3. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
4. The permittee shall at all times provide the operation and maintenance necessary to
assure that all components of the permitted stormwater system functions at the design
condition. The approved Operation and Maintenance Plan must be followed in its
entirety and maintenance must occur at the scheduled intervals including, but not limited
to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the vegetated filter,
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
5. Records of maintenance activities must be kept and made available upon request to
authorized personnel of the Division. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
6. The facilities shall be constructed, operated and maintained in accordance with the
provisions of this permit, the approved plans and specifications, and the supporting
documents attached to this permit and on file with the Division.
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.
8. If the stormwater system BMP is used as an Erosion Control device during construction,
more frequent maintenance will be required during construction to maintain functionality.
Once the drainage area is stabilized and prior to occupancy of the facility, the BMP must
be fully restored to design condition.
9. Access to the stormwater facilities shall be maintained via appropriate recorded
easements at all times.
10. All stormwater collection and treatment systems must be located in public rights -of -way,
dedicated common areas or recorded easements. The final plats for the project will be
recorded showing all such required rights -of -way, common areas and easements, in
accordance with the approved plans.
Page 5 of 9

State Stormwater Management Systems
Permit No. SW8 091108
11. No person or entity, including the permittee, shall alter any component shown in the
approved plans and specifications. Prior to the construction of any modification to the
approved plans, the permittee shall submit to the Director, and shall have received
approval for modified plans, specifications, and calculations including, but not limited to,
those listed below. For changes to the project or SCM that impact the certifications, a
new or updated certification(s), as applicable, will be required and a copy must be
submitted to the appropriate DEQ regional office upon completion of the modification.
a. Any modification to the approved plans and specifications, regardless of size
including the SCM(s), BUA, details, etc.
b. Redesign or addition to the approved amount of BUA or to the drainage area.
c. Further development, subdivision, acquisition, lease or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications.
d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan.
e. The construction of any allocated future BUA.
f. The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included
in the approved plans and specifications.
g. Other modifications as determined by the Director.
12. A copy of this permit, the permit application documents, the approved plans and
specifications shall be maintained on file by the Permittee for the life of the permit.
13. Prior to transfer of the permit, the stormwater facilities will be inspected by DEME_R
personnel. The facility must be in compliance with all permit conditions. Any items not in
compliance must be repaired or replaced to design condition prior to the transfer.
Records of maintenance activities performed to date will be required.
14. 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
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.
2. The permittee is responsible for compliance with all permit conditions until such time as
the Division approves a permit transfer request. Neither the sale of the project in whole
or in part nor the conveyance of common area to a third party shall be considered an
approved permit transfer request.
3. Current Permittee Name or Address Changes: The permittee shall submit a completed
"Permit Information Update Application _Form" (available on the Division website) to the
Division within 30 days to making any one or more of the following changes:
a. A name change of the current permittee;
b. A name change of the project;
c. A mailing address change of the permittee;
Page 6of9

State Stormwater Management Systems
Permit No. SW8 091108
4. Permit Transfer: This permit is not transferable to any person or entity except after
notice to and approval by the Director. The permittee shall submit a completed and
signed "Permit Transfer Application Form" (available on the Division website)
accompanied by the required fee and supporting documentation as listed on the form, to
the Division at least 60 days prior to any one or more of the following events:
a. The sale or conveyance of the project area in whole or in part, except in the case of
an individual lot sale that is made subject to the recorded deed restrictions and
protective covenants;
b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05
or NCGS 57D-6-07 and 08;
c. Bankruptcy;
d. Foreclosure, subject to the requirements of Session Law 2013-121;
5. The permittee is responsible for compliance with all permit conditions until such time as
the Division approves the transfer request. Neither the sale of the project, in whole or in
part, nor the conveyance of common area to a third party constitutes an approved
transfer of the stormwater permit.
6. Any individual or entity found to be in noncompliance with the terms and conditions of a
stormwater management permit or the stormwater rules is subject to enforcement action
by the Division, in accordance with NCGS143 Article 21.
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.
8. The permittee grants Division Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted stormwater
management facility.
9. The permit issued shall continue in force and effect until the permittee files a request
with the Division for a permit modification, transfer, renewal, or rescission; however,
these actions do not stay any permit conditions.
10. 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.
11. The application form, supplement forms, approved plans and specifications for this
project are incorporated by reference and are enforceable parts of the permit.
12. A permit renewal request must be submitted at least 180 days prior to the expiration
date of this permit. The renewal request must include the appropriate application,
documentation and the processing fee as outlined in Title 15A NCAC 02H.1045(3).
Permit modified, updated and reissued this the 121' day of May 2020.
NORTH CAROLINA ENVIR NMENTAL MANAGEMENT COMMISSION
brian vvrenn, Acting uirecior
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 7 of 9

State Stormwater Management Systems
Permit No. SW8 091108
Consolidated Information Technology/Telecommunication Complex Bldg 24, P-1311
Stormwater Permit No. SW8 091108
Onslow County
Designer's Certification
I, , as a duly registered
North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(Project Name)
in the State of
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 Management Systems
Permit No. SW8 091108
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 outlet/bypass structure elevations are per the approved plan.
fi. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation, per the vegetation plan.
9. Vegetated slopes are no steeper than 3:1.
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. Required drawdown devices are correctly sized and located per the approved
plans.
_13. All required design depths are provided.
.14. All required parts of the system are provided, such as plantings, a forebay, filter
media and a vegetated filter.
_15. The required system dimensions are provided per the approved plans.
CC" NCDEQ-DEMLR Regional Office
Page 9 of 9

Attachment C - Permitting History
Consolidated Information Technology Telecommunication
Permit No. SW8 091108
Approval
Permit Action
BIM$
Description of the Changes
Modified Plan Sheets
Date
Version
8/27/20 10
OriginalApproval
1.0
12 bioretention cells subject to SL 2008-21 l
• To remove one of the buildings resulting in a decrease in drainage
I0/41201 1
Modification
1.1
area (DA) and built -upon area (BUA) to BMP 6.
2/28/2013
Modification
1.2
• Increasing BUA to the DA for BMP 3 due to the reconfiguration of
the parking lot solar panels.
• The conversion of 1 1 of'the 12 permitted bioretention basins to
sand filters. BMP 2 will remain a grassed bioretention basin.
7/16/2013
Modification
1.3
Underdrains will be utilized in the sand filters to ensure the sand
filters properly drawdown.
- The drainage area and associated imperious areas for BMPs 4 and 5
have been adjusted.
- The construction of a tower and related gravel drive and parking
8/1/2013
Plan Revision
1.4
area within DA 5 that utilizes 2,816 square feet of built -upon -area of
the 8,000 square feet available in future use. The future available
BUA is reduced to 5.184 square feet.
• The expansion of the parking lot and the associated new sand filter
9/18/2014
Modification
1.5
(BMP 13) to treat the additional impervious area.
• To accordingly account for the additional BMP, the drainage area
and impervious areas for BMPs 3 and 8 have been adjusted.
Major
• Reducing the ESA and BUA to BMPs 2 and 12
5/12/2020
Modification
1.6
• Increasing BUA to BMP 10 but demonstrating the BMP can handle
the increased runoff.
Page 1 of 1

DEMLR USE ONLY
D to It ceived
Fee Paid
Permit Number
1 y ao,;o 1*(oqV7cW
04066°
I �`7,c.vE� QqllocF
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non-Coasta] SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fonn away be photocopier! for use as an original
I. GENERAL INFORMATION
-1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
P1228 Birch Street Roadway Improvements - (Consolidated Information Technology / Telecommunication
Complex, P-1311)
2. Location of Project (street address):
Intersection of Birch Street/Cross Street and McHugh Boulevard, Camp Lejeune
City:iacksonvil le County:Onslow Zip:28542
3. Directions to project (from nearest major intersection):
Intersection of Birch Street and Holcomb Boulevard falls withing the project limits of the roadway
improvement project. Travel west up Birch Street to the intersection of McHugh Blvd where Birch St changed
to Cross St.
4. Latitude:34° 40' 33" N Longitude:77° 21' 21" W of the main entrance to the project.
li. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ❑New ®Modification ❑ Renewal w/ Modificationt
tReneurals unto rnodificatioris also requires SVM-102 - Renezoal Application Form
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW8-091108 , its issue date (if known%lly 16, 2013 , and the status of .
construction: ❑Not Started ❑Partially Completed* ® Completed* *provide a designer's certification
Specify the type of project (check one):
❑Low Density ®I -sigh Density ❑Drains to an Offsite Stormwater System ❑Other
If this application is being submitted as the result of a previously returned application or a letter from
DEMLR 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 ❑Sedimentation/Erosion Control: _
❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts
ac of Disturbed Area
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: AM,
5. Is the project located within 5 miles of a public airport?
No ❑Yes
a VFW
APR 14 1p�p
Forrn SWU-101 Version Oct. 31, 2013 Page 1 of 6 EY

III. CONTACT INFORMATION
].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:Commanding General MCB Camp Lejeune _^
Signing Official & Title:Talia Barraco, EI PWD Civil Engineer_ _
b.Contact information for person listed in item la above:
Street Address:Bldjg 1005 Michael Road Public Works Division, Civil Design Branch_
City:Camp Lejeune State:NC Zip:28547
Mailing Address (if applicable):
City: State: Zip:
Phone: (910 ) 451-3238 x 3242 Fax: [phone]
Email:[e-mail]
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:
Mailing Address (if applicable):
City:
Phone: l )
Email:
State:
State:
Fax:
Zip:
Zip:
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:
Signing Official & Title:
b.Contact information for person listed in item 3a above:
Mailing Address:
City: State:
Phone: L .) _ _ _ Fax:
Email:
4. Local jurisdiction for building permits:
Point of Contact:N/A Phone #:
Fornt SWU-101 Version Oct. 31. 2013 Page 2 of 7
Zip:
Y

1

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Existing impervious surface that currently flows to stormwater practices located within the limit of the12errnit
will be routed away from the permit area. New impervious surface resulting from the widening of Cross
Street and McHugh Boulavard will be routed to the stormwater practices within the -permit area. The area of
new impervious surfaces will be dual to or less than the amout of area removed, therefore, not
having a negative impact on the existing systems within _the -perm it area.
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 If - Post Construction
3. Stormwater runoff from this project drains to the White Oak River basin.
4. Total Property Area: 23.54 (existing!) acres
23.25 (proposed)
5. Total Coastal Wetlands Area: 0.0 acres
6. Total Surface Water Area: 0.0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area': 23.54 (existing) acres
1
Z3.25(roose�)
Tota! prolecpt a ea shall be calculated to exclude the following: the normal pool of impounded strrrctrrres, the area
between the banks of streams and rivers, the area below the Normal High Water (NHWj litre or Mean High Water
(MH1M line, and coastal rvetlarrds landward from the NHW (or MHW) fine. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands larulward of the NNW (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 = 45
9. I -low many drainage areas does the project have? 13 (For high density, count I for each proposed engineered
stortinvater BMP. For low densitry and other projects, rise 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 Oct. 31, 2013 Page 3 of 7
A�'R142020D
By�

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Basin Information
Drains a Area
Drain a Area
Drains a Area
Drains a Area
Receiving Steam Name
Stream Class '
Stream Index Number
Tvtal Drains a Area (sf)
On -site Drainage Area (so
Off -site Drains a Area sf)
Pro osed Imptrvious Area`*
% Impenrious Area total
fret envious" Surface Area
Drainage Area
Drains a Area
Drains a Area
Drains a Area
On -site Buildings/Lots
On -site Streets (sf)
On -site Parkin s
Ore -site Sidcwallcs sf)
Other on -site (sf)
Future s
Off -site s
Existing BUA'*' (sf)
Total ( :
' Shra n Class and Index Number can be determined at: lit rvrfal.reed�tirr.or /ic�rIalre ; by c Mts cations
Impt�cr�rtrwwus area is dcfned as the built upon area including, but not limited to, buildinr, road parking areas,
sidete�alks, gratrrl areas, etc.
•" Report only that amount a existing BL[A that will roe►rtarre after development. Do not report any existing BUA that
is to be removed and whi r uW1 be replaced by new B iLA.
11. How was the off -site impervious area listed above determined? Provide documentation.
No offsite impervious area
Prolects In-JJnIon Counl : Contact DF.AfLR Centel Ogce sraf to check if the project is located within a Threatened &
tsnriangcr6rl S{rcri s+'rttpr,khcrl that ma
d• he subject to mum strinXcni.srommrater mquirrments ax per 1 Sal NCAC 0 B .O&W
V. SUPPLEMENT" AND O&M FORMS
The applicable state storm+*ater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each SMP specified for this project. The latest versions of the forms can be downloaded
from htto:/ltaort;rl.u�aienr.orf s�eb/+vctlw:/su/bmn-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and
Land Resources (DEWLR). A complete package includes all of the itetm listed below. A detailed application
instruction sheet and BMP checklists are available from
httl2://I!ortal.ncdetir.org/web/w_q/­ws/suIst-,itcssvli(ir7n§_d does. The complete application package should be
submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the
interactive online map at httr:lIp2rtal.neilenr.urg/web/ %vglwsls'u(m:s.)
Please indicate that the following re4uired information have been Mvidgd b jQJ iali13 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 h ortni.ncdrnr ar w b w° w a an,
Initials
1. Original and one copy of the Storm►,►ater Nlanagemeni Permit Application Form.
2. Original and one a►py of the signed and notarized Deed Restrictions & Protective Covenantsy/A
Form. (if required as per Part VII belmu)
3. Original of the applicable Supplement Form(s) (sealed. signed and dated) And O&M NIA
agreement(s) for each BMP.
4. Permit application processing fee of M payable to,UCDENK (For an Express review, refer to /Oif�-
htty //%-mv.envhelp.orgIRARMlonesi=t2re',�,4-btm1 for information on the Express pro
and the associated furs. Contact the appropriate regional office Expmss Permit Coordinator fo
additional information and to schedule the required application meeting.)
Form SWU-101 Vcrsion Oct. 31, 2013 Page 4 of 7 # APR 14 2020
BY•��

Basin Information
Drainage Area 1
Drainage Area 2*
' . Drainage Area 3
Drainage Area 4.
Receiving Stream Name
Beaverdam Creek
Beaverdam Creek
Beaverdam Creek
Beaverdam Creek
Stream Class
SB, NSW
SB, NSW
SB, NSW
SB, NSW
Stream Index Number
19-20
19-20
19-20
19-20
Total Drainage Area (sf)
113,692
61,289
184,697
64,904
On -Site Drainage Area (sf)
113,692
61.289
184,697
64,904
Off -site Drainage Area (sf)
0
0
0
0
Proposed Impervious Area (sf)
46,174
18,971
91,476
35,719
% Impervious Area (total)
41%
31%
50%
55%
Impervious Surface Area
Drainage Area 1
Drainage Area 2*
Drainage Area 3
Drainage Area 4
On -site Buildings/Lots (sf)
9,931
0
6,940
5,885
On -site Streets (sf)
29,941
6.828
21.927
15,603
On -site Parking (sf)
-
0
51,614
453
On -site Sidewalks (sf)
2,792
3,320
8,574
3,273
Other On -site (sf)
310
0
0
994
Future (st)
-
0
0
0
Off -site (sf)
-
0
0
0
Existing BUA (sf)
3,200
8,823
2,421
9,511
Total (sf)
46,174
1 18,971
t 9L476
1 35,719
Basin, Information
Drainage Area 5
Drainage Area 6
Drainage Area 7
Drainage Area 8
Receiving Stream Name
Beaverdam Creek
Beaverdam Creek
Beaverdam Creek
Beaverdam Creek
Stream Class
SB, NSW
SB, NSW
SB, NSW
SB, NSW
Stream Index Number
19-20
19-20
19-20
19-20
Total Drainage Area (sf)
193,842
48,787
37,897
62,726
On -Site Drainage Area (sf)
193,842
48,787
37,897
62,726
Off -site Drainage Area (so
0
0
0
Proposed Impervious Area (sf)
58,370
16,553
13,069'
23,522
% Impervious Area (total)
30%
34%
34%
37%
impervious Surface Area
Drainage Area 5
Drainage Area 6
Drainage Area 7
;Drainage Area 8
On -site Buildings/Lots (sf)
1,032
12.288
7,911
17,051
On -site Streets (so
33,033
3,900
0
4,791
On -site Parking (sf)
6,382
0
0
0
On -site Sidewalks (sf)
840
365
2,130
1,680
Other On -site (sf)
3,547
0
0
0
Future (sf)
5,194
0
0
0
Off -site (sf)
0
0
0
0
Existing BUA (sf)
8,352
0
3,028
0
Total (sf)
59,370
16,553
13,069
23,522
*DA 2, 10, and 12 are the only areas affected by this modification. Information for all other DAs is based on information
provided in original permit.
ECEIV�
MAY 1 20 to
8Y•

Basin Information
Drainage Area 9
Drainage Area 10*
Drainage Area I l
Drainage Area 12*
Receiving Stream Name
Beaverdam Creek
13eaverdam Creek
Beaverdam Creek
Beaverdam Creek
Stream Class
513, NSW
SB, NSW
SB, NSW
513, NSW
Su -cam Index Number
19-20
19-20
19-20
19-20
"Total Drainage Area (so
30,928
136,343
10,019
52,213
On -Site Drainage Area (so
30,928
136,343
10,019
52,213
Off -site Drainage Area (so
0
0
0
0
Proposed Impervious Area (sf)
15,422
98,113
4,356
26,831
F. Impervious Area (total)
501,10
72%
43%
51 A%
Impervious Surface Area
Drainage Area 9
Drainage Area 10*
Drainage Area 1 1
Drainage Arca 12*
On -site Buildings/1-ots (so
0
19,122
0
1,969
On -site Streets (sf)
0
0
3,378
19,902
On -site Parking (st)
13,416
79,350
0
0
On -site Sidewalks (so
1,414
641
0
207
Other On -site (SO
592
0
0
333
Future (sf)
0
0
0
0
Off -site (SO
0
0
0
0
Existing 13UA (so
0
0
978
4,420
'total (Sol
15,422
1 98,113
1 4,356
26,831
Basin Information
Drainage Area 13
Receiving Stream Name
13eaverdam Creek
Stream Class
SB, NSW
Stream Index Number
19-20
Total Drainage Area (so
15,246
On -Site Drainage Area (st)
15,246
Off -site Drainage Area (so
0
Proposed Impervious Area (sf)
8,276
% Impervious Area (total)
54%
Impervious Surface Area
Drainage Area 13
On -site Buildings/Lots (so
0
On -site Streets (sf)
0
On -site Parking (so
8,276
On -site Sidewalks (sf)
0
Other On -site (so
0
Future (so
0
Off -site (SO
0
Existing BUA (sf)
0
Total (so
8,276
*DA 2, 10, and 12 are the only areas affected by this modification. Information for all other DAs is based on information
provided in original permit,
RECEavED
MAY oS2020

5. A detailed narrative; (one to two pages) describing the stormwater treatment/management for
b. A USGS map identifying the site location. If the receiving stream is reported as class SA or the .f c
receiving stream drains to class SA watery within ti mile of the site boundary, include the
mile radius on the map.
7. Seated, signets and dated calculations (one copy).
S. Two sets of plans tld qd hi 8 14' (sealed, signed, & dated), including: S"c-
a. Development/ Pro)ect 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 l 4MV or NI-iW line of tidal
waters, and any coastal wetlands landward of the MMV or NHW lines.
• Delineate t)te vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the &1HW (or AeHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & d6tantes.
j. Site Layout with an BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
L Details of reads, 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 o€f-site), drainage easements, pipe sixes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffo (where required).
9. Copy of any applicable soils report with the associated Sl sVVT 0e3LaHnns (Please identify NIA
elevations in addition to depths) as well as a reap of the boring locotio nt; with the existing
elevations and boring logs. include an 8.5"x11" copy of the NRCS County Soils mall with the
project area clearly delineated. For projects with infiltration BRIM 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 z site visit far UEMLR to verify the SHK7 prior
to submittal, [phone])
10. A copy of the most current property decd. MxxA book: Page No: NLA
11. For corporations and limited liability corporations (1Q: Provide documentation from the NC N1A_
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 15A 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.
help:/ I K'wW.S+L'C7L"bi�'.stitte,t3s,,�s/ Corporations �CSearcha5px
VTi. DEED RESTRICTIONS &ND PROTECTIVE COVENANTS
For all subdivisions, outpareels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot si7.es vary significantly or the proposed
BUA allocations vary, a table lLsting 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 appropriatedeed
restrictions and protective covenants forms can be downloaded from htM:Mj2—ortal..ngdc
stor. -miv�, s clort:. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the respormibility of the property
owner to sign the deed restrictions and protective coverumts form while the applicant is responsible for ensuring
that the deed reestrictions are recorded.
By the notarized signature(s) below, the permit holdcr(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 forests available on the website, that the covenants will be binding on at] 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 DEMLR, and that they will be recorded prior to the sale of any lot
APR 14 2020
Form SWi 1-1 Q l Vcrsiors Oct 31. 2013 Page 5 of 7 BY--

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:Brian Scott Chewning
Consulting Firm: Burns & McDonnell
Mailing Address:1317 Executive Blvd
City:Chesapeake
Phone: [phone]
Email:[e-mail]
Sta te: V A Z ip:23320
Fax: (757 ) 548-2812
IX. PROPERTY OWNER AUTHORIZATION (if Contact tnformation, item 2 has beery filled ont, complete this
section)
1, (print or type rianre 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, itenr ]a) with (print or type name of organization listed in
Contact Information, item In) 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 DEMLR Stormwater permit reverts back
to me, the property owner. As the property owner, it is my responsibility to notify DEMLR 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. 1 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.
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,
SEA L
My commission expires
R4�0-- #Ve
APR 14 ypyp ' J
Donn SWU-101 Version Oct. 31, 2013 Page 6 of

X. APPLICANT'S CERTIFICATION
1, (print or type narue of person listed in Contact fnforniation, item 1a) TAli ei 80k1rlra e,o
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 stormwater rules under 15A NCAC ?H .1000 and any other applicable state stormwater requirements.
Signature: v rA Date: b312.1 1 zO
t
a Notary Publi for the State of %-)C County of
do hereby certify that 1\� _ _ personally appeared
before me thi3la) day of � �d� _ ,and ackno ledge the du execution of the application for
a stormwater permit. Witness my hand and official se
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Form SWU-101 Version Oct. 31, 2013 Page 7 of 7

, % : : , f F : : \

Permit Number:
.[to be provided by DWQ)
NICDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM p Y
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION '' s s,:
Project name P-1311 Consolidated Information Tech nology/Telecom municatjon Complex, Camp
Contact name 'Crystal Hill, PE
Phone number W4-822-3020
Date July 1, 2013
Drainage area number 1
IL .DESIGN INFORMATION' .�• ,-... .- , � �_,, n, � ? x t �a � �k
Site Characteristics
Drainage area (AD) 113,692.00 ft2 OK
Impervious area 46,174.00 ft2
% Impervious (IA) 40.6% %
Design rainfall depth (RD) 1.50`in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63
,in
1-yr, 24-hr intensity
0.15
in1hr
Pre -development 1-yr, 24-hr runoff
2.08
Wisec
Post -development 1-yr, 24-hr runoff
6.48
ftlisec
Pre/Post 1-yr, 24-hr peak control
4.40
ft3fsec
Storage Volume
Design volume (WQV)
5,905.00, ft3
Adjusted water quality volume (WQVAdi)
4,428.75 ft3
Volume contained in the sedimentation basin and on top of the sand filter
8,205.00 ft3
Top of sand filter/grate elevation
.14' ft amsl
Weir elevation (between chambers) r
14 ' oft amsl
Maximum head on the sedimentation basin and sand filter (hMaxFiter)
I.00 ft
Average head on the sedimentation basin and sand filter (hA)
0,50 ft
Runoff Coefficient (Rv)
0.42 (unitless)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwT)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwr)
y . . YorN
8.90•ft amsl
10.50 ft amsl
i 1.60
YorN
ift amsl
ft amsl
If this is a closed, underground dosed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground ft
structure (ds,,e)
OK
Insufficient depth.
OK
y JUL 0 2 2013
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basintchamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed throuqh a veqetated 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Riqht of Way (ROWP
What is the width of the sedimentation chamberlforebay (Ww)?
What is the depth of sand over the outlet pipe (dpipe)?
.:,rL4 , I -5'�11'
Permit Number: T ti^
(to be provided by DWd,
3,410.00 ft2 OK. Meets minimum, but may need to be.irt ceased to
1.00 ft
4,023.06 fe OK. Meets minimum, but may need to be increased to
13.00 ft amsl
11.50 It amsl
1.50 ft
3.50; (fVday)
6.00': in
1.63 ft3lsec
11.00!hours OK. Submit drainage calculations.
0.46 days
y j Y or N OK
n i Y or N insufficient flow splitter,
YorN
ift
I YorN
Y. YorN
y ) YorN
y YorN
nla Y or N
42.00 ft
1.83`ft
OK
OK
OK
Insufficient ROW location.
OK
OK
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and H. Project Design Summary, Page 2 of 2

t r
y
Permit No.
* (to be provided by DWQ)
A 11FIREQUIREDHEMSjCHECKLISThiPI': `` � € � +�h .
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
- 1. Plans 0" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
C�- Rniinrinrine of r1m;nnna ancomant
2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope {if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
I - Boundaries of drainaqe easement.
k 6 3. Section view of the sand filter (i' = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filler chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
C66cW 4. A sahlel.
A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
Q t 5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (O&M) agreement
7. A copy of the deed restrictions (if required).
IIECEOVE't
JUL 4 2 2013
BY:
Form SW40i-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

r
Red triangles at the upper right hand comer indicate design comments
Please complete the yellow shaded items.
Permit Number:
(to be provided by DWQ)
AGIDA
NCDENR Y
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 P1228 Birch Street Roadway improvements
Contact name Scott Chewning, PE
Phone number 757.819-9735
Date April 13, 202C
Drainage area number 2
Site Characteristics
Drainage area
61,289 ft'
Impervious area
18,971 ft2
Percent impervious
31.0% %
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
3.63 in
1-yr, 24-hr intensity
0.15 in/hr
Pre -development 1-yr, 24-hr peak Flow
4.240 ft31sec
Post -development 1-yr, 24-hr peak flow
3.660 0lsec
Pre/Post 1-yr, 24-hr peak control
-0,580 ft3/sec
Storage Volume: Non -SA Waters
Minimum volume required
2,521.0 ft3
Volume provided
3,584.0 ft3
OK
Storage Volume: SA Waters
1.5" 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
9 inches
OK
Pending depth of water
0.75 ft
Surface area of the top of the bioretention cell
4,800.0 ft2
OK
Length:
235 ft
OK
width:
17 ft
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
5 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
E C E IVE
Drawdown time, total:
17 hr
In -situ soil:
MAY 0 5 2320
Soil permeability
2.10 inlhr
OK
Planting media soil:
BY'
Soil permeability
2.00 in/hr
OK
Soil composition
% Sand (by volume)
85%
OK
Form SW401-Bioretention- Rev. 8
June 25, 2010
Parts I and II. Design Summary, Page 1 of 4

Permit Number:
(t) be provided by D WQ)
% Fines (by volume) 10% OK
% Organic (by volume) 5% OK
Total: 100%
Phosphorus Index (P-Index) of media
20 (unitless) OK
ECEIVE
MAY 0 5 2020
Bt
Form SW401-Bioretention-Rev,B
June 25, 2010 Parts I and II, Design Summary, Page 2 of 4

permit Number:
(to be provided by DWQ)
Basin Elevations
Temporary pool elevation 18.75 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 treesishrubs? N (Y or N)
Planting elevation (top of the mulch or grass sod layer) 18 fmsl
Depth of mulch inches
Bottom of the planting media soil 16 fmsl
Planting media depth 2 ft
Depth of washed sand below planting media soil ft
Are underdrains being installed?
N
(Y or N)
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
0 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
16 fmsl
SHWT elevation
14 fmsl
Distance from bottom to SHWT
2 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
18 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
Y
(Y or N)
OK
through a vegetated filter?
What is the length of the vegetated filter?
25 ft
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 localed at least 100 feet from water supply wells?
Y
(Y or N)
OK
Are the vegetated side scopes 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)
1 fUsec
OK
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
(Y or N)
OK
Pretreatment Used
(Indicate Type Used with an ' X' in the shaded cell)
Gravel and grass
MIECEgVE
(8'inches gravel followed by 3-5 ft of grass)
Grassed swale
X
OK MAY 0 5 2-320
MAY
Forebay
Other
BY. -
Form SW401-Bioretention-Rev.8
June 25, 2010 Paris I and 11. Design Summary, Page 3 of 4

' Permit No:
(to be assigned by DWQ)
lit. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
Qsc C-704 1. Plans (V - 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
.9sc C-303 2. Plan detalIs (1" = 30' or larger) for the bieretention cell showing
Cell dimensions
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
Indicate the P-Index between 10 and 30
Qsc C-506 3. Section view of the bioretention cell (1" = 20' or larger) showing:
Side slopes, 3:1 or lower
Underdrain system (If applicable), and
Bioreterition cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
asc Attached 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified In the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl) Results of soils tests of both the planting soil and the in
situ soil must include:
Soil permeability,
Soil composition (% sand, % fines, % organic), and
P-index.
N/A 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
Basins A variety of suitable species,
to be Sizes, spacing and locations of plantings,
Sodded Total quantity of each type of plant specified,
A planting detail,
The source nursery for the plants, and
Fertilizer and watering requirements to establish vegetation.
N/A & A construction sequence that shows how the bioretention cell will be protected from sediment until the
entire drainage area is stabilized.
Esc C-609 7. The supporting calculations (including underdraln calculations, if applicable).
Attached EC IERE
�Tsc 8. A copy of the signed and notarized inspection and maintenance (18�M) agreement. N/A 9. A copy of the deed restriction. MAY 0 5 2020
BV:
Form SW4131-13ioretention-Rev.7 part III, Page 4 of 4

Permit Nvmb';�v e�Ij/olee'
(to be provided by DWQ)
�F•
ri -
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section Ill) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name P-1311 Consolidated Information Technology/Telecommunication Complex, Camp
Contact name Crystal Hill, PE
Phone number '804-822-3020
Date
Drainage area number
4, 2014
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
184,694,00 ff OK
Impervious area
91,476.00 fe
% Impervious (IA)
49.5% %
Design rainfall depth (Rp)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
PrelPost 1-yr, 24-hr peak control
Storage Volume
Design volume (WQV)
Adjusted water quality volume (WQVAdi)
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filter/grate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hM.Fiter)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwr)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsH,A,r)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dsp,,)
3.63
in
0.15
inlhr
4.30
ft3lsec
11.61
ft3/sec
7.31
ft3lsec
11,445.00 ft'
8,583.75 ft3 OK
9,554,00 ft'
11 ft amsl
11 ft amsl
1.00 ft Insufficient depth.
0.50 ft OK
0.50 (unitless)
YorN
2.00 ft amsl
5.50 ft amsl
3.50
YorN
It amsl
It amsl
CEI'I
SEP 0 Al 2014
W
RY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dr)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off line flaw -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed throuqh 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsm)?
What is the depth of sand over the outlet pipe (dpipe)?
Permit Number: s •,
(to be provided by DWG)
2,688.00 fC OK. Meets minimum, but may need to be increased to
1.00 ft
5,240.00 ft2 Increase surface area.This will also increase the
10.00 ft amsl
8.50 ft amsl
1.50 ft
3.50 (ft/day)
6.00 in
2.12 ft3lsec
10.00 hours OK. Submit drainage calculations.
0.42 days
Y or N OK
n Y or N
Insufficient flow splitter.
YorN
ft
YorN
y Y or N
OK
y Y or N
OK
y Y or N
OK
nla Y or N
Insufficient ROW location.
48.00 ft
OK
1.83 ft
OK
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and It. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
1111. REQUIRED ITEMS CHECKLIST I
Please indicate the page or plan sheet numbers where the supporting documentation can be found, An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
l' i�}� 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
_ Rni inrinriac of Hrainano aacamnnf
` 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the
chamber,
- Maintenance access,
Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
_506 -Boundaries of drainage easement.
V 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
filter
Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
annlicahle).
4, A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
I , investigation request form. County soil maps are not an acceptable source of soils information.
�11 5. Supporting calculations (including drainage calculations)
1 6, Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
EC E IVERi
1 1`
SEP 0 4 2014
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number:
(to be provided by DWQ)
.NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section Ill) and the I&M Agreement (Section IV)
L>PROJECT INFORMATION r a
� name Project P-1311 Consolidated Information f Tech nologylTelecommunication Complex, Cam--'
Contact name Crystal Hill, PE
Phone number 804-822-3020
Date June 11.2013
Drainage area number
,4
11. DESIGN INFORMATION � I -., i ,.� e.c. .. r*; ,`. •' •'' .'_ c, tl' &�=d ! e 5E -� Flu `9.
Site Characteristics
Drainage area (AD) 64,904,00 ft2 OK
Impervious area 35,719.00 ftZ
% Impervious (IA) 55.0% %
Design rainfall depth (Ro) 1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WQV)
Adjusted water quality volume (WQVAJ
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filterlgfate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hM,Fftr)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand titer?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHm)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dspe)
3.63 in
0.15 in/hr
3.03 ft3lsec
5.09 ft3lsec
2.06 ft3lsec
4,424.00 ft3
3,318,00 ft3
4,005.00 ft3
21 ft amsl
21 ft amsl
1.00 ft
0.50 ft
0.55 (unitless)
YorN
11,80 ft amsl
17.50 ft amsl
` 5.70
I YorN
1 ft amsl
ft amsl
t ;
ft
t
AYA
Insufficient depth.
OK
EOVEr?-
JUL 022013
BY:
Form SW401-Sand Filter-Rev.5 2009Septi7 Paris I and 11. Project Design Summary, Page 1 of 2

Sedimentation Basin
Permit Number: , s__ w% --
(fo be provided by DWQ), '
Surface area of sedimentation basin (As)
2,048.00 ft2
Sedimentation basin/chamber depth
1.00 ft
Sand Filter
Surface area of sand filter (Ai:)
1,304,00 It
Top of sand media filter bed elevation
20.00 ft amsl
Bottom of sand media filter bed/drain elevation
18.50 ft amsl
Depth of the sand media filter bed (dF)
1.50 ft
Coefficient of permeability for the sand filter (k)
3.50 (ft/day)
Outlet diameter
6.00 in
Outlet dischargelflowrate
0.53 ft3lsec
Time to drain the sand filter (t)
16.00 hours
Time to drain the sand filter (t)
0.67 days
Additional information
Does volume in excess of the design volume bypass the sand filter?
y Y or N
Is an off-line Flow -splitting device used?
n Y or N
if d SA D d
OK. Meets minimum, but may need to be increased to
Increase surface area.This will also increase the
OK. Submit drainage calculations.
OK
Insufficient flow splitter.
raming to waters. oes volume In excess o the design volume flow
Y or N
evenly distributed throu4h a veoetated filter?
What is the length of the vegetated filter?
It
Does the design use a level spreader to evenly distribute flow?
Y or N
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
y Y or N
OK
If not a closed bottom, is BMP located at least 100ft 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 recorded drainage easement with a recorded access
easement to a public Rioht of Way (ROWP
Ma Y or N
Insufficient ROW location.
What is the width of the sedimentation chamberlforebay (Wsd)?
21.00•ft
OK
What is the depth of sand over the outlet pipe (dpipe)?
1.83 ft
Olt
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
lli� REQUIREDj'ITEMSICHECKLIST 4: :, y" &&L!- 4 x} ='m ag i i au'w
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
CO
� 2_ - Rniinriariac of riminana aammant
—W 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
` - Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing;
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
filter
Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
co �,j + d 4. A sohlPl.
S� (,�Gt� A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
5. Supporting calculations (including drainage calculations)
d fi. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required),
'€ JUL 0 2 2013
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number:
(to be provided by DWQ)
. AN"A
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also till out and submit the Required Items Checklist (Section Ill) and the I&M Agreement (Section IV)
I. ,PROJECT INFORMATION ' - .': .. .., ., �. _ - ;� '.. . ! �.A:. a ... :. '.1 a ,
Project name P-1311 Consolidated Information Technology/Telecommunication Complex, Cam
Contact name Crystal Hill, PE=
Phone number 804-822-3020
Date July 1, 2013
Drainage area number
5
!I. DESIGN ,INF.ORMATION ,. ,
Site Characteristics
Drainage area (AD)
_
193,842.00'ft2 OK
Impervious area
58,370.00"ft2
% Impervious (IA)
30.1 % %
Design rainfall depth (Ro)
1.50' in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63 'in
1-yr, 24-hr intensity
0.15 inlhr
Pre -development 1-yr, 24-hr runoff
4.34 M . `:ff3lsec
Post -development 1-yr, 24-hr runoff
10.41 'ft3lsec
Pre/Post 1-yr, 24-hr peak control
6.07 folsec
Storage Volume
_
Design volume (WQV)
7,778.00 ft3
Adjusted water quality volume (WOVAdi)
5,833.50 ft3 OK
Volume contained in the sedimentation basin and on top of the sand filter
6,767.00',ft3
Top of sand filter/grate elevation
13 ' 1ft amsl
Weir elevation (between chambers)
13 1ft amsl
Maximum head on the sedimentation basin and sand filter (hM.Finer)
1-00 Insufficient depth.
Average head on the sedimentation basin and sand filter (hA)
0.50;ft OK
Runoff Coefficient (Rv)
0.32 (unitless)
Type of Sand Filter
Open sand filter?
y Y or N
SHWT elevation
6.70'ft amsl
Bottom of the sand filter elevation
. 9.50 ft amsl
Clearance (dsHw7)
2.80
Closed/pre-cast sand filter?
. Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
It amsl
Clearance (dSHWT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
;ft
structure (ds,,,)
TiE,07,
" JUL 0 2
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts 3 and rl. Project Design Summary, Page 1 of 2

Permit Number: I "
(to be provided by D11
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet d'ischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flaw -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Ws d)?
What is the depth of sand over the outlet pipe (dpipe)?
"(tr• ! t f r
2,045.00 ft2 OK. Meets minimum, but may need to be increased to
t _1. 00 It
3,834.00 ft2 Increase surface area.This will also increase the
12.00-ft amsl
10.50:ft amsl
1,50 ft
3.50 (f /day)
6.00 in
1.55 ft3lsec
9.00 hours OK. Submit drainage calculations.
0.38 days
Y or N OK
n Y or N
Insufficient flow splitter.
YorN
'ft
YorN
y Y or N
OK
_ y Y or N
OK
y YorN
OK
n/a Y or N
Insufficient ROW location.
15.00,ft
OK
I 1.83ft
OK
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 2 of 2

i Permit No.
A.. (to be provided by DWQ)
iIIF REQUIRED ITEMSiCHECKLIS,'t* _ 5 '` `` � ". � � ` ���`
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
C11 L1. } 1. Plans (V - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
f� _ Rniinrinriac of drainnnn nacamant
C -30l 2. Plan details (1' = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope {if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
C& I ann irahlP).
1e(�{ 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
Q l 5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) agreement
j!�L V 7. A copy of the deed restrictions (if required).
EC OVE``1
JUL 022013
�I
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number: �4 001136
(to be provided by DWQ)
of Yr a rEA
=' r
}
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This fort must be filled out on line, printed and submitted with all of the required information,
Make sure to also fill out and submit the Required Items Checklist (Section III) and the l&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name P-1311 Consolidated Information TechnologyfTelecommunication Complex, Camp
Contact name Crvstal Hill. PE
Phone number
Date
Drainage area number
804.822-3020
July 16, 2013
6
II. DESIGN INFORMATtON
Site Characteristics
Drainage area (A,)
48,787.00 ft2 OK
Impervious area
16,553.00 ft2
% Impervious (IA)
33.9% %
Design rainfall depth (Ro)
1.50 in
Peals Row Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WQV)
Adjusted water quality volume (WQVAO)
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filterigrate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hM.,1`11e1)
Average head on the sedimentation basin and sand filter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter.
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHvrr)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsNwr)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dsp,,,)
J.ti3 In
0.15 inlhr
1.16 ft3isec
3.44 ft3isec
2,28 ft3isec
2,167.00 ft3
1,625.25 ft3
2,697.00 ft3
22 ft amsl
22 It amsl
1.00 ft
0.50 ft
636 (unitless)
YorN
12.40 ft amsl
18.50 ft amsl
6.10
YorN
ft amsl
ft amsl
OK
Insufficient depth.
OK
JUL 10 2C 3
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWO)
-Szdimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media'filter bed elevation
Bottom of sand media filter bedidrain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the 8MP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chambedforebay (Wsd)?
What is the depth of sand over the outlet pipe (dpipe)?
946.00 ft2 OK. Meets minimum, but may need to be increased to
1.00 ft
1,230.00 ft2 OK. Meets minimum, but may need to be increased to
21.00 ft amsl
19.50 ft amsl
1.50 ft
3.50 (ft/day)
6.00 in
0.50 ft3lsec
12.00 hours
OK. Submit drainage calculations.
0.50 days
y
YorN
OK
n
Y or N
Insufficient flow splitter.
YorN
It
YorN
y
Y or N
OK
y
Y or N
OK
y
Y or N
OK
n/a
Y or N
Insufficient ROW location,
9.50 ft
OK
1.83 It
OK
RU.
ECE1V E JUL ,82013
Form SW401-Sand Filter-Rev.5 2009Sept17 Paris I and II. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
r #111.k EJIRED ITEMS CHECKLIST ' '
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
1. Plans 0' - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (tength, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
/t t 7.,/► _ Rni indarinc of firainano oacomonl
,[�/ 2. Plan details (1' = 30' or larger) for the sand filter showing:
- System dimensions lIength, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
_ _ l 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filler chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
5. Supporting calculations (including drainage calculations)
of+ 6. Signed and notarized operation and maintenance (0&M) agreement
a- 7. A copy of the deed restrictions (if required).
EC ENV%
y JUL 0 2 2M3
BY;
Form SW401-Sand Fitter-Rev.5 2009Sept17 Part Ill, Page 1 of 1

Permit Number,
(to be provided by DWQ)
' '
A i .y
NCDENR p
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I &M Agreement (Section IV)
I::PiZOJECT INFORMATION 4
Project name P-1311 Consolidated Information Tech nologylTelecommunication Complex, Camp
Contact name ;Crystal Hill; PE T
Phone number .804-822-3020 _
Date 4July-1, 20137)
Drainage area number 7
Ill. DESIGN INFORMATION. '
Site Characteristics
Drainage area (AD) 37,897.00 ft2 OK
Impervious area 13,069.00 ft2
% Impervious (IA) 34.5% %
Design rainfall depth (Ro) 1.50'in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63
• in
1-yr, 24-hr intensity
0.15
sinlhr
Pre -development 1-yr, 24-hr runoff
1.92
' 'f /sec
Post -development 1-yr, 24-hr runoff
2.35
ft3lsec
Pre/Post 1-yr, 24-hr peak control
0,43
f'Isec
Storage Volume
Design volume (WQV)
1,707.00 fft3
Adjusted water quality volume (WQVAdi)
1,280.25 ft3
Volume contained in the sedimentation basin and on top of the sand filter
( 1,641*.00-3 OK
Top of sand filterlgfate elevation
C21 d— ft amsl
Weir elevation (between chambers)
21 ;tt amsl
Maximum head on the sedimentation basin and sand filter (hMaeFiMJ
' 1-1 AO;ft Insufficient depth.
Average head on the sedimentation basin and sand filter (hA)
10:50^ ft OK
Runoff Coefficient (Rv)
0:36'(unitless)
Type of Sand Filter
Open sand filter?
y Y or N
SHWT elevation
15.10,ft amsl
Bottom of the sand filter elevation
17.50�ft amsl
Clearance (dsHwT)
2.40,
Closed/pre-cast sand filter?
t Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
.ft amsl
Clearance (dswa)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
aft
structure (ds,,,)
�A'r� -
JUL 0 2 2093
Un
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 1 of 2

Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basintchamber depth
Sand Filter
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargetflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed through a veqetated 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay AM)?
What is the depth of sand over the outlet pipe (dpipe)?
Permit Number. K
(to be provided by DWQ)'
L544.00;ft2 OK. Meets minimum, but may need to be increase io
1.00 ft
[759. 00ft2 OK. Meets minimum, but may need to be increased to
20.00 ft amsl
18.50. ft amsl
1.50 ft
3.50 (fYday)
6.00 in
t' 0.31 fe/sec
t~12.00 Hours OK. Submit drainage calculations.
0.50.days
Y or N OK
n Y or N
Insufficient flow splitter.
YorN
ft
YorN
y Y or N
OK
y Y or N
OK
y Y or N
OK
nla Y or N
Insufficient ROW location,
15.00 ft
OK
1.83 ft
OK
Form SW401-Sand Fitter-Rev.5 2009Sept17 Parts I and II, Project Design Summary, Page 2 of 2

` Permit No.
(to be provided by DWQ)
f s �, •a �.aw�y fir. �� {a t 4' � r
III REQIJfREp ITEMS;CFIECKLISfr.= _ _ i...: ' a} "u .� _ >u�' � A
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information, This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
1. Plans 0" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
_ Rnnnrinrine of eirninnno noenmont
2. Plan details (1" = 30' or larger) for the sand filler showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
I ` - Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SNWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
OVE
JUL 0 2 2013
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number�� ge� //44'(l
(to be provided by DWQ)
� A
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be fitted out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section Ill) and the t&M Agreement (Section IV)
o�QFwA7- 96.
1. PROJECT INFORMATION 71
Project name P-1311 Consolidated Information Tech nologyffelecommunication Complex, Camp
Contact name Crystal Hill, PE
Phone number 804-822-3020
Date
Drainage area number
2014
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
62,726.00 ftz OK
Impervious area
23,522.00 f 2
% Impervious (IA)
37.5% %
Design rainfall depth (RD)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WOV)
Adjusted water quality volume (WOVAdi)
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filter/grate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hMaxFiHfJ
Average head on the sedimentation basin and sand filter (N)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwr)
Closed/pre-cast sand fjlter7
SHWT elevation
Bottom of the sand filter elevation
Clearance (ds�mT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (ds,,,,)
3.63
in
0.15
inlhr
1.43
ft3/sec
4.06
ft3lsec
2,63
ft'/sec
3,038,00 ft'
2,278.50 ft3 OK
2,580,00 It'
20 ft amsl
20 ft amsl
1.00 ft Insufficient depth.
0.50 ft OK
0.39 (unitless)
YorN
12.50 ft amsl
16.33 ft amsl
3.83
n YorN
ft amsl
ft amsl
ft
f
SEP 042014
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Permit Number: . _
(to be provided by DWQJ
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basinlchamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelftawrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsd)?
What is the depth of sand over the outlet pipe (dpipe)?
873.00 ft'
1.00 ft
1,288.00 ft
19.00 It amsl
17.50 It amsl
1.50 ft
3.50 (ftlday)
6.00 in
0.88 ft3lsec
11.00 hours
0.46 days
OK. Meets minimum, but may need to be increased to
Increase surface area.This will also increase the
OK. Submit drainage calculations.
_ y YorN OK
n YorN Insufficient flow splitter.
YorN
ft
YorN
y YorN
OK
y YorN
OK
y YorN
OK
nla YorN
Insufficient ROW location.
21.00 ft
OK
1.83 ft
OK
Form SW401-Sand Filter-Rov.5 2009Sept17 Parts I and 11. Project Design Summary, Page 2 of 2

Permit No.
J„ (to be provided by DWQ)
Jvv
{ III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
Off -site drainage (if applicable), and
C _ Rniindnriac of r♦roinana aacnmant
2, Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SHWT elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests, The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soiis information.
5. Supporting calculations (including drainage calculations)
f 6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
C F UVE
5EP 0 � 2014
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

G�r
Permit Number:
(to be provided by DWQ)
�I�A �Q4 W ATF9�
NCDENR Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required items Checklist (Section Ill) and the I&M Agreement (Section IV)
I:' PROJECT INFORMATION
Project name ;P-1311 Consolidated Information Technology/Telecommunication Complex, Camp
Contact name Crystal Hill; PE 3
Phone number 804-822-3020
Date !July 1, 2013
Drainage area number 9
II. DESIGN INFORMATION
4
Site Characteristics
Drainage area (AD) 30,928.00Jf OK
Impervious area 15,422.00 fe
% Impervious (IA) 49.9% %
Design rainfall depth (Ro) 1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63
-in
1-yr, 24-hr intensity
0.15
`inthr
Pre -development 1-yr, 24-hr runoff
0.63
'ft/sec
Post -development 1-yr, 24-hr runoff
2.30
ft3lsec
Pre/Post 1-yr, 24-hr peak control
1.67
ft3lsec
Storage Volume
Design volume (WOV)
1,928.00 ft3
Adjusted water quality volume (WQVAd;)
1,446.00 ft3
Volume contained in the sedimentation basin and on top of the sand filter
3,336.00 ft3
Top of sand filter/grate elevation
19 :ft amsl
Weir elevation (between chambers)
19 ft amsl
Maximum head on the sedimentation basin and sand filter (hMmF;k,)
1.00;ft
Average head on the sedimentation basin and sand filter (hA)
0.50:ft
Runoff Coefficient (Rv)
0.50 (unitless)
Type of Sand Filter
Open sand filter?
y Y or N
SHWT elevation
11,00,ft amsl
Bottom of the sand filter elevation
15.50;ft amsl
Clearance (dsFwT)
4.50
Closed/pre-cast sand filter?
n Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
ft amsl
Clearance (dSHwT)
If this is a closed, underground closed sand filter: The clearance between '
the surface of the sand filter and the bottom of the roof of the underground
ft
structure (ds,,)
0,
Insufficient depth.
OK
EIfE
JUL 0 2 2M
BY, --
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basinichamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply welts?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Wav (ROW)?
What is the width of the sedimentation chambertforebay Aed)?
What is the depth of sand over the outlet pipe (dpipe)?
Permit Number:
(to be provided by QWQ)
1,139.00)ft2 OK.' Meets minimum, but may need to be increased to
1, OO;ft
1,236.00'f 2 OK. Meets minimum, but may need to be increased to
I 18.001ft amsl
16.5011ft amsl
1.50 ft
I 3.50'.(fVday)
6.00, in
0.50;ft31sec
I ' 14.Rhours OK. Submit drainage calculations.
0.58 days
y YorN OK
n Y or N Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
y YorN
OK
y YorN
OK
n/a Y or N
Insufficient ROW location.
9.00 ft
OK
1.83 ft
OK
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11, Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
l• r.s E UIREDHE _ u- 'ti. gig`• u.� ,, � �; ��, , :y ,
II.�;R Q 'fTEMS_C CKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials
Page/ Plan
Sheet No.
CC
Q�
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- resign at ultimate build -out,
- Off -site drainage (if applicable), and
-�
_ Rniinrfariac of rfrainnno oacamonf
2. Plan details (1" = 30' or larger) for the sand filter showing:
System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
- Flow splitting device,
Vegetative filter strip dimensions and slope (if SA waters),
Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
annlir•.ah1e1.
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
AIL
k_ltaQ 5. Supporting calculations (including drainage calculations)
ZV 6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
-tiE` ''E0VE'r`�
JUL 0 Z 2013
Form SW40i-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

t
Red triangles at the upper right hand comer indicate design comments
Please complete the yellow shaded items.
Permit Number:
(to be provided by DIO)
� OE W AT�R
0 pG
rrrrrrr �
NC®ENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the I&M Agreement (Section IV)
Project name P1228 Birch Street Roadway Improvements
Contact name Scott Chewning, PE
Phone number 757-819-9735
Date April 13, 2020
Drainage area number 10
Site Characteristics
Drainage area (Au)
136,343.00 ft' OK
Impervious area
98,113.00 ft2
% Impervious (IA)
72.0% %
Design rainfall depth (Ro)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63 in
1-yr, 24-hr intensity
0.15 inlhr
Pre -development 1-yr, 24-hr runoff
11.58 ft'/sec
Post -development 1-yr, 24-hr runoff
11.74 ft'/sec
Pre/Post 1-yr, 24-hr peak control
0.16 ft3lsec
Storage Volume
Design volume (WQV) 11,896.00 ft,
Adjusted water quality volume (WOVAdi) 8,922.00 ft3 OK
Volume contained in the sedimentation basin and on top of the sand filter 13,563.00 ft'
Top of sand filler/grate elevation 19 ft amsl
Weir elevation (between chambers) 19 ft amsl
Maximum head on the sedimentation basin and sand filter (hMwFi[w) 1.50 ft Insufficient depth.
Average head on the sedimentation basin and sand filter (hA) 0.75 ft OK
Runoff Coefficient (Rv) 0.70 (unitless)
Type of Sand Filter
Open sand filter? Y Y or N
SHWT elevation 12.80 ft amsl
Bottom of the sand filter elevation 15.00 ft amsl
Clearance (dsHwT) 2.20
Closedlpre-cast sand filter? N Y or N
SHWT elevation ft amsl
Bottom of the sand filter elevation ft amsl
Clearance (dsHwr)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground ft
structure (dsPa,,,)
MAY 0 5 Z120
sx:
Form SW401-Sand Filter-Rev.5 2009Sel Parts I and II. Project Design Summary, Page 1 of 3

I
Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basinlchamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
1,668.00 ft' UN. Ivlecls InuurllUnl, uul Ilidy neeu LU UC IHUttcOScu lU
1L,J ..., 1. - ;F i... ...,.J.,.
1.50 ft
4,487,00 ft 2 Uri. IVR]CLb IuI II I I U I II, LJUL II Idy IICCU IU UC If IGI UdOCU LU
..n..Fn�v. lL,n .., ..���+n.J �,., l,�w,n :F ...•... ��., .I n. C1....,..�.,
17,50 ft amsl
16.00 ft amsl
1.50 ft
3.50 (ft/day)
6,00 in
1.82 ft/sec
14.00 hours OK. Submit drainage calculations.
0.58 days
Y
Y or N
OK
N
Y or N
Insufficient flow spiitter.
YorN
fi
YorN
Y
Y or N
OK
Y
Y or N
OK
Y
Y or N
OK
NIA
Y or N
Insufficient ROW location.
9.00 ft
OK
1.83 ft
OK
ECEIVE
MAY 0 5 2020
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 2 of 3

l
Permit No.
(to be provided by DWQ)
Ill. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the
agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
AZ C-304 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
Flow splitting device,
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
AZ C-304 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
asc C-506 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable).
AZ Attached 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
asc Attached 5. Supporting calculations (including drainage calculations)
asc Attached 6. Signed and notarized operation and maintenance (0&M) agreement
NIA 7. A copy of the deed restrictions (if required).
MAY 0 5 2020
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 3 of 3

Permit Number:
(to be provided by D WQ)
o�OF W R rFgQG
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section lll) and the W Agreement (Section IV)
I: PROJECT INFORMATION
Project name 'P-1311 Consolidated Information Technology/Telecommunication Complex, Camp ,
Contact name Crystal Hill, PE
Phone number 804-822-3020
Date July 1, 2013
Drainage area number 11 T
DESIGN INFORMATION .... , N � - • .`. , -
Site Characteristics
Drainage area (AD) 10,019.00. ftz OK
Impervious area 4,356.00 ft2
% Impervious (IA) 43.5% %
Design rainfall depth (Ro) 1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3,63 in
1-yr, 24-hr intensity
0.15 , inlhr
Pre -development 1-yr, 24-hr runoff
0,39 ;ft 3lsec
Post -development 1-yr, 24-hr runoff
0,79 ft'/sec
Pre/Post 1-yr, 24-hr peak control
0.40 ft'/sec
Storage Volume
Design volume (WOV)
553.00 ft3
Adjusted water quality volume (WOVAdi)
414.75 ft3 OK
Volume contained in the sedimentation basin and on top of the sand filter
778.001ft3
Top of sand Tilterlgrate elevation
18 !ft amsl
Weir elevation (between chambers)
18 ;ft amsl
Maximum head on the sedimentation basin and sand filter (hM,Fiker)
1,00. ft Insufficient depth.
Average head on the sedimentation basin and sand filter (hA)
0.50:ft OK
Runoff Coefficient (Rv)
0,44 (unidess)
Type of Sand Filter
Open sand filter? _ y ` Y or N
SHWT elevation 12.80 ft amsl
Bottom of the sand filter elevation 14.50 ft amsl
Clearance (dsHwT) 1.70
Closed/pre-cast sand filter? n Y or N
SHWT elevation ft amsl
Bottom of the sand filter elevation ft amsl
Clearance (dsHw)
If this is a closed, underground closed sand filter; The clearance between
the surface of the sand filter and the bottom of the roof of the underground :ft
structure (dspace) i
!UL 0 2 2013
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and It. Project Design Summary, Page 1 of 2

Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basinlchamber depth
Sand Filter
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bedldrain elevation
Depth of the sand media filter bed (dr)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed throuqh 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Wav (ROW)?
What is the width of the sedimentation chamberifore bay (WSd)?
What is the depth of sand over the outlet pipe (dpipe)?
Permit Numb
(to be provided by DWQf
124.00 ft2 OK. Meets minimum, but may need to be increased
-1.0a ft
371.06 ft2 OK. Meets minimum, but may need to be increased to
17.00 ft amsl
15.50 ft amsl
1.50 ft
i 3.50 (ftlday)
6.00 in
0A 5. ft3lsec
11.00hours
OK, Submit drainage calculations.
0.4f days
�= Y or N
OK
n Y or N
Insufficient flow splitter,
YorN
Ift
i YorN
y I Y or N
OK
y [ Y or N
OK
yi YorN
OK
n/a Y or N
Insufficient ROW location.
10.00ift
OK
1.831'ft
OK
Form SW401-Sand Filter-Rev.5 2009Sep117 Parts I and IL Project Design Summary, Page 2 of 2

I
Permit No.
' (to be provided by DWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
1. Plans (1' - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
- Flow splitting device,
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
- Off -site drainage (if applicable), and
-�
Rnimtinriac of rirainana ancomanf
2. Plan details (1" = 30' or larger) for the sand filler showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
3. Section view of the sand filter 0' = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
Q�annlirahle).
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information,
Q W 5. Supporting calculations (including drainage calculations)
fi. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
w .JEC E 9VF-?-."
s JUL 0 2 200
LY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1

Permit Number:
(to be provided by DWQ)
Red triangles at the upper right hand comer indicate design comments
Please complete the yellow shaded items.
of w a r�R
� r
HCDEHR p
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form most be filled out on tine, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section Ill) and the I&M Agreement (Section IV)
Site Characteristics
Drainage area (Ac)
52,213,00 ftz OK
Impervious area
26,831.00 ft2
% Impervious (IA)
51.4% %
Design rainfall depth (RD)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.63 in
1-yr, 24-hrintensity
0.15 inlhr
Pre -development 1-yr, 24-hr runoff
3.70 ft3lsec
Post -development 1-yr, 24-hr runoff
3,53 ft3lsec
Pre/Post 1-yr, 24-hr peak control
-0.17 ft'/sec
Storage Volume
Design volume (WQV) 3,349.00 ft'
Adjusted water quality volume (WQVAa)) 2,511.75 ft' OK
Volume contained in the sedimentation basin and on top of the sand filter 3,169.00 ft'
Top of sand filter/grate elevation 18 ft amsl
Weir elevation (between chambers) 18 ft amsl
Maximum head on the sedimentation basin and sand filter (hvaxra,e�) 1.00 ft Insufficient depth.
Average head on the sedimentation basin and sand filter (hAJ 0.50 ft OK
Runoff Coefficient (Rv) 0.51 (unitless)
Type of Sand Filter
Open sand filter?
Y Y or N
SHWT elevation
9.70 ft amsl
Bottom of the sand filter elevation
14.50 ft amsl
Clearance (dsH ff)
4.80
Closed/pre-cast sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
ft amsl
Clearance (dSHWT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of}the roof of the underground
ft
structure (dsPa,e)
MAY 0 5 2020
$Y:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and li. Project Design Summary, Page 1 of 4

Permit Number;
(to be provided by D WO)
Sedimentation Basin
Surface area of sedimentation basin (AS)
789.00 ft'
vr\. IVICUU) nnlllll suns, UU1 uldy I ICCu lV UC II lGl CdZ:CU IQ
......1..:.. 4L,— ......:—A ....I. ..... �F ...'... ...J... Cl....,....
Sedimentation basin/chamber depth
1.00 ft
Sand Filter
Surface area of sand filter (Ar)
1,821.00 ft2
r1I CICd= bUl IdL& aICa. 1111Z� WII$ WbU III LA tidbt use
Top of sand media filter bed elevation
17.00 ft amsl
Bottom of sand media filter bedidrain elevation
15.50 ft amsl
Depth of the sand media filter bed (dF)
1.50 ft
Coefficient of permeability for the sand filter (k)
3.50 (ftlday)
Outlet diameter
6.00 in
Outlet dischargelflowrate
0.74 W/sec
Time to drain the sand filter (t)
9.00 hours
OK. Submit drainage calculations.
Time to drain the sand filter (t)
0.38 days
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Y Y or N
OK
Is an off-line flow -splitting device used?
N Y or N
Insufficient flow splitter.
If draining to SA waters: Does volume in excess of the design volume flow
Y or N
evenly distributed through a vegetated filter?
What is the length of the vegetated filter?
ft
Does the design use a level spreader to evenly distribute flow?
Y or N
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
Y Y or N
OK
If not a closed bottom, is BMP located at least 100ft 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 recorded drainage easement with a recorded access
N/A Y or N
Insufficient ROW location.
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (WSed)?
9 & 17 ft
OK
What is the depth of sand over the outlet pipe (dpipe)?
1.83 ft
OK
E
MAY 0 2G20
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Paris I and II. Project Design Summary, Page 2 of 4

Permit No.
(to be provided by D WQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the
agent may initial below. If a requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
19-1Z C-304 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Boundaries of drainage easement.
19sc C-304 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
QSc C-506 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable).
0sc Attached 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
Qsc Attached 5. Supporting calculations (including drainage calculations)
AZ Attached 6. Signed and notarized operation and maintenance (O&M) agreement
NIA 7. A copy of the deed restrictions (if required).
ECEeVEi1
MAY 0 5 2020
6Y:
Form SW401-Sand Filter-Rev-5 2009Sept17 Part III, Page 3 of 3

r
Permit Number: �q Cq
(to be provided by DWQ)
�� ryAT�C,9
riC©ENR � T
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section Ifl) and the I&M Agreement (Section IVJ
1.1P.ROJECTiINFORMATION
Project name ;P-1311 Consolidated Information TechnologyfTelecommuni6tion Complex, Camp
Contact name (Crystal Hill, PE :
Phone number '804=822-3020 }
Date !September 18, 2014 !
Drainage area number 1.13
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA}
Design rainfall depth (Rp)
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Pre/Post 1-yr, 24-hr peak control
Storage Volume
Design volume (WQV)
Adjusted water quality volume (WQVAdI)
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filter/grate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hMwriner)
Average head on the sedimentation basin and sand filter (h�
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwT)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHw)
If this is a closed, underground closed sand flier; The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (ds.,)
T ?15,246.00t,12 OK
} 8,276.00;ft2
54.3% %
} 1.50'in
} 3.63
in
.0.15
`inthr
} 0.56 , ,
ft3lsec
1 " 1.35
tt3lsec
0.79
0lsec
i-- —1 ,026.00 ft3
769.50 ft 3 OK
( 1,428.00 ft3
}. 22.5 _ off amsl
l 22.5 111 amsl
} Uo fi Insufficient depth.
} 0.Wil OK
0.54 (unitless)
} y YorN
! , '18.Wft amsl
V 20.00'ft amsl
2.00'
I i YorN
1 ' f It amsl
t It. amsl
i
9_—C;EI V E
SEP 18 2014
sY:
F......,
i ; �I
Form SW401-Sand Finer-Rev.5 2009Sept17 • Parts I and 11. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (Ar)
Top of sand media filter bed elevation
Bottom of sand media filter bedldrain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet dischargelflowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: 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 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsd)?
What is the depth of sand over the outlet pipe (dpipe)?
482.00 ft2 OK. Meets minimum, but may need to be increased to
1.00 ft
324, 00.fl2 OK. Meets minimum, but may need to be increased to
21.50.ft amsl
f 20.00 ft amsl
1,50 ft
3.50 (ft/day)
I 4,00, in
I • '0:13ft31sec
i 24.00 hours
OK. Submit drainage calculations.
1.00 days
z y Y or N
OK
i n Y or N
Insufficient flow splifter.
YorN
1 ft
YorN
y ; YorN
OK
i Y YorN
OK
i y YorN
OK
n/a Y or N
Insufficient ROW location.
l 10,00:fl
OK
1.83 fl
OK
ICE CEoV5:D
SEP 18 2014
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project design Summary, Page 2 of 2

Pi
Permit No.
(to be provided by DWQ)
IIII. REQUIRED ITEMS CHECKLIST I
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Pagel Plan
Sheet No.
3
1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
rlV��{"Ki
_ Pniinrinrinc of Hrainnna ancamont
2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the
chamber,
- Maintenance access,
- Flow splitting device,
- Vegetative filter strip dimensions and slope (if SA waters),
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
�����//
-5llU
Boundaries of drainage easement.
3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
filter
Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SHWT elevation,
- Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
As 4.soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
11 5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
ECEUVE
f,
SLAP 0 4 2014
13Y:
Form SW401-Sand Filter-Rev.S 2009Sept17
Part III, Page 1 of 1

Permit Number: SW8 091108
(to be provided by DJVO
Drainage Area Number: 1
Sand Filter Operation and MaintenanceAgreement
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 BMl' elements noted in the inspection will be corrected, -repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential'problem:
How 1 wiIl emediate the probiemi
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as ,
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
.Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used,.wipe it on the plants
rather than s ra in .
Form SW40i-Sand Filter O&M-Rev.4 2009Sept17
E.
vp
JU�j 1 1 2013
BY,
Page 1 of 3

s
BMP element:
Potentialproblem:
How l will remediate.theproblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace, if water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
E % Elr. d Vf1
JUN 1 1 2013
BY,
Page 2of3

Permit Number: SW8 091108
(/a be provided by DfVQ)
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 neime:P-131 1 Consolidated Information Technology/Telecommunication Complex, Camp
Leeune
BA11P drainage area number: 1
Print name:Neal-Paul
Title:Deputy Public Works Officer_
Address:Sld<Y 1005 Michael Road. Camn Lc-eune. NC 28542
Phony
Signo
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
do hereby certify that
personally appeared before me this U� day of
_ � W V�o- , and acknowledge the due execution 'the forariiria canri filter
maintenance requirements. Witness my hand and official se , a
KELLEY VANDECOEVERI Q
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
Mycommission c, pi expi tcs Form SW401-Sand Filter O&M-Rev.4 2009Septl7 E C E VE
JUG, 1 12013
PY;
Page 3 of 3

Permit Number:
(to be pro Wded by DFVQ)
Drainage Area Number: a
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 it 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).
RECEIVED
Form SW401-Bioretention O&M-Rev.3 Page I of 4

BMP element:
Potentialproblems-
How I will remediate theproblem:
The pretreatment area
Flow is bypassing;
Reg;rade 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 slakes/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
ed with sediment.
- remove and replace either just the
top layers or the entire media as
6
\�
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
4j� •
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
Ctogging 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-Bioretenlion O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DIVQ)
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: P-1311 Consolidated Information Technology/Telecommuncation
Complex Bldg 24
BMP drainage area number: 2
Print name -Carl Baker
Title -Deputy Public Works Officer ^
Address:Bldg 1005 Michael Rd. Camp Lejeune, NC 28547
Phone
Signat
Date: �e - _2X f Z)
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.
day of
a Notary Public for the State of
County of a/lj�/� , do hereby certify that
�i personally appeared before me this
and acknowledge the due execution of the
maintenance requirements. Witness my hand and official seal,
ALICE A BONNETTE
Notary Public
Onslow County
State of North Carolina
My Commission Expires Oct 23, 2010
MILL"
My commission expires - 4'�v
Form SW401-Bioretention I&M-Rev. 2
Page 4 of 4

VJA GouwInlou Ex51m OrJ S�' SG1d
2Ja10 01 HOLIV cololluo
Ou210M ConvIA
110100, bnPlic
VrfCE V 0014AEUE
v
1F
6

n
I �
Permit Number: SW8 091108
(Io be provided by DWQ)
Drainage Area Number: 3
Sand Filter .Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and within 24 hours after every storm event greater than
1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
BMP element:
Potentialproblem-
How I will,remediawthe roblem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Septi7
h JUN 1 1 2013
BY:
Page I of 3

BMP element:
Potential problem.
How I will: remediate theproblem:,
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm..
clogged and flush if necessary. if water
still ponds, remove the top few inches of
filter bed media and replace. If water still
onds, then consult an ex ert.
Outlet device
Clogging has occurred.
Clean out -the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401. Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
OVE-
JUN 11 2013
BY:
Page 2 of 3

Permit Number: 5W8 091108 .
(to be provided by DJYQ)
acknowledge and agree by.my signature below that 1 am responsible for the performance of the
maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior
to any changes to the system or responsible party.
Project name:P-1311 Consolidated Information Technology/Telecommunication Complex. Camp
BAIP drainage urea number:_3
Print name:
Title:Deputy Public Works Officer _
Address:Blde 1005 Michael Road. Camp Lejeune, NC 28542
Phony
Signa
Date:
Note: The legally responsible parry 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
Vk '1 V County of 'l I () I/tJ do hereby certify thatnJ,�
personally appeared before me this Oq day of
and acknowledge the due execution of the forgoing sand filter
maintenance requireJnents. Witness my hand and official seal,
KELLEY VANDECOEVERING
!VOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL'
My commission expires V �%
F
Form SW=401-Sand Filter O&M-Rev.4 2009Septl7 � juri 1 1 2013
BY:
Page of

Permit Number: SW8 0.91108
(to be provided by DWQ)
Drainage Area Number:
Sand Filter Operation and Maintenance Agreement
4
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency.of the BMP.
Important maintenance procedures:
"-- The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media wTill be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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: _Potentialroblem.-
Howiwrll=,remediate the_ roblexri:,� . ,
Entire BMP
Trash/debris is resent.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
gully, and then plant a ground cover and
water until it is established. Provide lime
and a one-time fertilizer ap2lication.
Vegetation is too short or too long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair,
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
° lV,q=
:i J U 114 11 2013
BY:
Page I of 3

BMP element:
Potentialproblem;
How I will remediate theproblem:
Filter bed and underdrain
Water is pond ing on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water.
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
tiJ CC P0VE
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 � Page 2 of 3
j',�� 2Qi3
1.1
- I V 1 :

Permit Number: SW8 091108
(to be provided by DIYQ)
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:P-131_1 Consolidated Information Technology/Telecommunication Complex. Camp
eune
BLIP drainage area number: 4
Print name:Neal Paul
Title:De utv Public Works Officer
Address:Bldg 1005 Michael Road, Camp Leicune, NC „29542
Phon
Signz
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.
l-WAM vJW` opts )v alNotary Public for the State of
. County of U w do hereby certify that
MkGW�personally appeared before me this V day of
JQN_ , W IJ . and acknowledge the due execution of the f -�k1
maintenance requirements. Witness my hand and officiayseal,
n ,
f7NOTARYDEC�EVEFt14C
IC
LOW COUNTY
NORTH CAFtOLINA
SEAL
M commission expires t '*GU A
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
JUN 1 1 2013
BY:
Page 3 of 3

Permit Number: SW8 091108
(to be provided by DirQ)
Drainage Area Number:
Sand Filter Operation and Maintenance Agreement
5
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential roblem:
How i will remediate theproblem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement su rface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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 ,
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&Nl-Rev.4 2009Sept17 JIUN 1 ' 2013 Page I of 3
BY:

BMP element:
Potentialproblem-.
How I will remediate the. roblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm. -
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or`te lace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
ECEE VE
juN 1 1 2013
BY:
Page 2 of 3

Permit Number: SW8 091.108
(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:P-131 1 Consolidated Information Technoloey/Telecommunication Complex, Camp.
Leieune
BMP drainage area number: 5
Print name:Neal Paul
Title:Det)uty Public Works Officer
Address:Bldg 1.005 Michael Road, Camp Leieune, NC 28542
Phon,
Signa
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 LWOO, a Notar Public for the State of
, Y
County of UV II) J Ut (J , do hereby certify that
personally appeared before me this 04 day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand ancLofficial seal,
KELLEY VANDECOEVERING
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
- (7
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17 JUN 1 1 2013 Page 3 of 3
BY:

Permit Number: SW8 091108
(io.be provided by DWQ)
Drainage Area Number: 6
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a Iog in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
Once a year, sand media will be skimmed.
The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and. within 24 hours after every storm event greater than
1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
BMP element:
Potentialproblem:
How 1 will remediate theproblem:.
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches,
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
E-NIV
Form SW401-Sand Filter 0&110-Rev.4 2009Sept17 t JUN 1 1 2013 Page l of 3
BY:

BMP element:
Potentialproblem:
How I will remediate the roblem:'
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. if water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
t
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3
BY:

Permit Number: SW8 091108
(to be provided by DWO)
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:P-1.31.1 Consolidated_ Information Technology/Telecommunication Complex, Camp
Leieune
BjVfP drainage area number: &
Print name:Neal Paul
Title:Dcputy Public Works Officer
Address:Blde 1005 Michael Road, Camp Lejeune, NC 28542
Phone. 910-45L-1-'?l3 If
Signature:
Date: l R
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.
IU� vV Yl ��� a Notary Public for the State of
1 County of do hereby certify thatr�c
vl� personally appeared before me this V ' day of
jjV\ and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and of cial seal,
KELLEY VANDECOEVERING
NOTARY PUBLIC
ONSLOW COUNTY
STATE Of NORTH CAROLINA
SEAL
My commission expires 1
V E
Form SW40I-Sand Filter O&M-Rev.4 2009Septi7 F'
JUN. 1 1 2013
RY:
Page 3 of 3

Permit Number: SW8 091108
(to be provided by DWQ)
Drainage Area Number: 7
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this B1\1P. This maintenance record will be kept in a log in a
known set location. Anv 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 BLIP.
Important maintenance. procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential roblem:
Haw I will.emediatetheproblem: `
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
P, F VE
JUi 1 M3
6Y:
Page I of 3

SNIP`element:
Potential roblent '
>.H6w l will reinedi.iWthe. robiem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert,
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 ;' ,��I Page 2 of 3
1
BY:

r
Permit Number: SW8 091108
(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.
Projecl name: P-131 1 Consolidated Information Tech nology/TeI9communication Complex,, Camp
Le'eune
BHP drainage area number:?
Print name:Neal Paul
Title:Deputy Public Works Officer
Address:BldQ 1005 Michael Road. Carnp Leieune. NC 28542
Phorn
Signa
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
MOM1MCA, County of� , do hereby certify that
personally appeared before me this day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
KELLEY VANDECOEVERIN
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
-My commission expires
Form SW40I-Sand Filter O&A-i-Rev.4 2009Septl7
L:Y:
Page 3 of 3

PermitNumber: SW8 091108
(lo be provided by DWQ)
Drainage Area Number:
Sand Filter Operation and' Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media, will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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
Potential roblenn:
How I will remediate theproblem:.
Entire BMP
Trash/debris is pr6ent.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
.lam
Form SW401-Sand Filter 0&kt-Rev.4 2009Septl7 Page 1 of 3
13.
BY.

i`
SMP element:
Potentialproblem-
How I wiIl.ren;ediate the roblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
onds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or re place the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
S- VE
j U N 1 1 2013
BY:
Page 2 of 3

Permit Number: SW8 091108
(10 be provided by DWO)
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: P-131 l Consolidated Information Technology/Telecommunication Complex. Camp
Leieunc_ _
BMP drainage area number: 8
Print name:Neal Paul
Title:De utv Public Works Officer
Address:Blda 1005 ?Vlichael Road. Camp Lefeune NC 28542
Phony
Signa
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
V" County of , do hereby certify that
R6
U personally appeared before me this ]1-L day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and
KELLEY VANDECOEVERIN
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
Form SV1'40I-Sand Filter 0&,1d-Rev.4 2009Septl 7
2013
BY:
Page 3 of 3

.ti
'�' I
.+�
4
!F. - _ F- � ^ � �
� ' � I � ' 1 f � I C.' lei / �

Permit Number: SW8 091108
(io be provided by DWQ)
Drainage Area Number: 9
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency 'of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and within 24 hours after every storm event greater than
1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
BMP element:
Potentialproblem:
How I willremediate theproblem:
Entire BMP
Trash/debris is 2resent.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove: the
gullies have formed.
gully, and then plant aground cover and
water until it is established. Provide lime
and a one-time fertilizer application.
Vegetation is too short or too long.
Maintain vegetation at an appropriate
eight.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair,
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather.than spraying. -
Form SW401-Sand Filter 0&itit-Rev.4 2009Septl7
BY:
Page 1 of 3

t;�?
BMP element:
Potentialproblem;
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand'Filter O&M-Rev.4 2009Sept17
0E-E" '
,SUN 1 1 2013
BY:
Page 2 of 3

Permit Number: SW8 091108
(Jo be prowled by D ivQ)
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:P-1311 Consolidated Information Technology/Telecommunication Complex, Camp
BMP drainage area number:
Print name:Neal Paul
Title:Deputy Public Works Officer
Address:Blde 1005 Michael Road Camp Le'eune NC 28542
Phone:[phone]
Signature:
Date: I I"
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,� d1 C , a Notary Public for the State of
IRO l ,County of , do hereby certify that
personally appeared before me this _�L day of
M, and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and officiayseal,
KELLEY VANDECOEVER
NOTARY PUBLIC
ONSLOW COUNTY
STATE Of NORTH CA OLINA
SEAL
My commission expires
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17 1?Y h jllj j 1 1 2013 Page 3 of 3
BY:

,:
JS
r
1 f '_
}
5 r l r�

t' .,
Permit Number: SW8 091108
(to be provided by DIVA)
Drainage Area Number: 10
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a login a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential roblem:
How Lwill:remediate theproblem: M;
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height,
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
'
the sediment and stabilize'or 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand FilterO&M-Rev.4 2009Septl7
�� j r-_. I�a ..._. :
'.I JUN 1 1 2013
BY:
Page I of 3

M
BMP element:
Potentialproblem:
How I will remediate theproblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm,
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or re lace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW40l-Sand Filter O&M-Rev.4 2009Sept17
Page 2 of 3

y
PermitNumber: SW8 091108
(io be provided by DIVQ)
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:P-131 1 Consolidated Information TechnoloLv/Telecommunication Comolex,_Camp
Leieune__
B1111P drainage cirea number: 10
Print name:Neal Paul
Title:Deputy Public Works Officer
Address:Bldg 1005 Michael Road, Camp Lejeune, NC 28541)
Phone:[phone] ) If
Signature:: y 2"
Date: N , Ion ` 1
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, OWA V QUM, a Notary Public for the State of
V County of V AJ do hereby certify that
personally appeared before me this _W_ day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and 9fficial seal, n
KELLEY VANDECQEVERIQ
NOTARY PUBLIC
ONSLOWCOUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
�T Dr'
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17 'I
BY:
Page 3 of 3

Permit Number: SW8 091108
{io be provided by DWO)
Drainage Area Number: 11
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set Iocation. Anv deficient BNIP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential problem.'
How 1 will remediite the roblem:' -
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement su rface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or dispose of it
in a location where it will not cause
im acts 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Septl 7
Mr-
L.. JUN 1.1 2013
BY:
Page I of 3

BMP element:
Potentialproblem:
How I will remediate the roblem:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
.Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
'F, 51VE .t
Form SW40I-Sand Filter O&M-Rev.4 2009Se tl7 .= Page 2 of.3
BY:

Permit Number: SW8 091108
(Io 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:P-131 1 Consolidated Information Tech nolog_y/TeIecommunication Complex. Camp
ne
BiVfP drainage area number: 11
Print name:Neal Paul
Title:De utv Public Works Officer
Address:BldP 1005 Michael Road, Camp Lejeune. NC 28542
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.
veld ��V�
I, a otary Public for the State of
County of; �� T, do hereby certify that ��
personally appeared before me this Out day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal, ;
,LEYtVANDECO EVERINQ
PUIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
WWW
SEAL
My commission expires V�A QA
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
S
BY:-
Page 3 of 3
.I -

Permit Number; Sw8 091108
(to be provided by DWQ)
Drainage Area plumber: 12
Sand Filter 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. Ariv deficient BMP elements rioted in the inspection will be corrected, repaired.or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the sand filter.
— The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and within 24 hours after every storm event greater than
1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
BMP element:
Potentialproblem:
How I will remediate the problem:
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
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 long.
Maintain vegetation at an appropriate
hei ht.
Flow diversion structure
The structure is dogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or 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
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Septl 7
E-CE6TWO E t
2013
Y.
Page I of 3

BMP element:
Potential problem:
How I will remediate Y$e rablein:
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and Flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversi ht Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 ".Itj 1 2013 Page 2 of 3
BY:

Permit Number: SW8 091108
(to be provided by DHIQ)
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:P-1311 Consolidated Information Technology/Telecommunication Complex, Camp
Leieune
BMP drainage area number: 12
Print name:Neal Paul
Title:Deputy Public Works Officer
Address:Bldg 1005 Michael Road. Camp Lejeune. NC 28542
Phone:[phone]
Signatureff:
Date: l
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.
VMdk , a Notary Public for the State of
1 1 Yl C1,County of dl/l.� , do hereby certify that
personally appeared before me this � day of
and acknowledge the due executio t e forgo ng san tit
maintenance requirements. Witness my hand and official s al,
KELLEY VANDECOEVERING
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires o
Form SW401-Sand Filter O&M-Rev.4 2009Septl7
�.
JUN 1 1 20 3
Page 3 of 3

,. -
f r. ,•
.. � _,.
1 � r"R.� ..'�.�' . .

Permit Number: SW8 091108
(10 be provided by D [VOA
Drainage Area Number: 13
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and
the removal efficiency of the BMP.
Important maintenance procedures:
- The drainage area will be carefully managed to reduce the sediment load to the sand filter.
The sedimentation chamber or forebay will be cleaned out whenever sediment depth exceeds
six inches.
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly 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:
Potential roblem:
How I will remediate the roblem:
Entire BMP
Trash/debris is present.
Remove the trash/debris,
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
gully, and then plant a ground cover and
water until it is established. Provide time
and a one-time fertilizer application.
Vegetation is too short or too long.
Maintain vegetation at an appropriate
eight.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair,
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or dispose of it
in a Iocation 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
a pesticide is used, wipe it on the plants
rather than spraying. - .
E'lla-EU L1UWIN
SEP 0 4 2014
Form W4 1- an Filter O&M-Rev.4 2009Se tl7 6 it Page 1 f 3
o S O S d 0 p Z
BY:

BMP element:
Potentialproblem:
How 1 wilLremediate the problem.
Filter bed and underdrain
Water is pond ing on the surface for
Check to see if the collector system is -
collection system
more than 24 hours after a storm,
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. If water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Rep air or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
EG E U
SEP 0 4 2014
BY:
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 2 Of 3

Permit Number: SW8 091108
(to be provided by D[i'Q)
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:P-131 1 Consolidated Information Technology/Telecommunication Complex, Camp
8HP drainage area number:
Print name:Neal Paul
13
Title:Denuty Public Works Officer
Address:I3ld2 1005 Michael Road. Camp Lejeune. NC 28542
Phon
Signz
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
1'U do hereby certify that
ersonal ly appeared before me this _q_ day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and offici 1 seal,
KELLEY VANDECOEVERI G
NOTARY PUBLIC
ONSLOW COUNTY
STATE OF NORTH CAROLINA
SEAL
My commission expires
'0E0V(E �
SEP 0 4 2014
BY:
Page 3 of 3
Form SW40I-Sand Filter O&M-Rev.4 2009Septl7

L�
r `/}
Permit Number SW8091108
Program Category
State SW
Permit Type
State Stormwater
Primary Reviewer
christine.hall
Coastal SWRule
Coastal Stormwater - 2008
Permitted Flow
Facility
Central Files: APS ,— SWP
5/14/2020
Permit Tracking Slip
Status
Project Type
Active
Major modification
Version
Permit Classification
1.60
Individual
Permit Contact Affiliation
Talia M. Barraco
1005 Michael Rd
Camp Lejeune NC 28547
Facility Name Major/Minor Region
Consolidated Information Technology Telecommunication Complex P1311 Minor Wilmington
Location Address County
Bldg 24 Area Off McHugh Blvd Onslow
Facility Contact Affiliation
Camp Lejeune NC 28547
Owner
Owner Name Owner Type
Commanding Officer Marine Corps Base Camp Lejeune Government - Federal
Owner Affiliation
John R. Townson
1005 Michael Rd
Dates/Events Camp Lejeune NC 2854725:
Scheduled
Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration
8/27/2010 4/14/2020 5/12/2020 5/12/2020 11/23/2020
Regulated Activities Requested /Received Events
State Stormwater - HD - Bioretention Additional information requested 4/27120
State Stormwater - HD - Sand filters Additional information received 515120
Additional information requested 5/7/20
Additional information received 5/11120
Outfall
Waterbody Name Streamindex Number Curient Class Subbasin