SW8080945_CURRENT PERMIT_20200623

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 Q�D9 L{5
DOC TYPE
® CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
20 Lo a� 23
YYYYM M DD

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Director
September 4", 2020
NORTH CAROLINA
Environmental Quality
MCB Camp Lejeune
Attn: Commanding Officer
c/o Neal Paul, Deputy Public Works Officer
1005 Michael Road
Camp Lejeune, NC 28547
Subject: Permit Renewal
State Stormwater Management Permit No. SW8 080945
CALA Ordinance Loading Area Condition
Onslow County
Dear Mr. Paul:
Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality
(DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR). All previous references to DWQ will
remain in older Stormwater permits issued prior to August ls, 2013 until they are modified. Please note that this permit
will now reference DEMLR as the Division responsible for issuance of the permit.
The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for
the subject project on June 231, 2020. The Division is hereby notifying you that permit SW8 080945 has been renewed
on September 4ti', 2020, and shall be effective until December 20", 2026. For your records, please find enclosed a
renewed, updated, and re -issued permit and a copy of the renewal application. Please keep this permit on file at all
times. Please note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely
restates and clarifies some of the previous terms to provide you with a better understanding of your obligations under
the permit.
The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the
terms and conditions of this state Stormwater permit. The plans originally approved on November 6 , 2008 and most
recently modified on November 17", 2011, will remain in full force and effect in accordance with the regulations set
forth in Title 15A NCAC 2H.1000.
This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the
conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed
restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish
an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions,
to transfer the permit, or to renew the permit, will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written
petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within
thirty (30) days of receipt of this permit. You should contact the OAH withal] questions regarding the filing fee (if a
Fling 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, need additional copies of the permit or approved plans, please contact Kellie Beth Norris in
the Wilmington Regional Office, at [phone] or [e-mail].
Sinc ely,
- Brian Wrenn, lt6r
Division of Energy, Mineral and Land Resources
North 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
Nor �a��� 910.796.7215

State Stormwater Permit No. SW8 080945
Page 2 of 2
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
Renewal Application Documents
DFIS/khn:\\\Stormwater\Permits & Projects1200K080945 HD12020 09 permit 080945
cc: Wilmington Regional Office Stormwater File

State Stormwater Management Systems
Permit No. SW8 permit# 080945
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL 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
CALA Ordnance Loading Area, New River
Perimeter St., Camp Lejeune, Onslow County
FOR THE
construction, operation and maintenance of fourteen (14) Sand Filters in compliance with the
provisions of Session Law 2006-246, 2008-211 and 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules') and the approved stormwater management plans and specifications and other
supporting data as attached and on file with and approved by the Division of Energy, Mineral and
Land Resources (the "Division" or "DEMLR") and considered an enforceable part of this permit.
This permit shall be effective from the date of issuance until December 20th, 2026, and shall be
subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.8 on page 3 of this permit. The stormwater controls labeled 1, A, Al, A2,
A3, B, C, D, E, E1, E2, E3, E4, and F, have been designed to handle the runoff from 159,895;
24,436; 18,067; 10,447; 11,853 78,741; 78,927; 57,521; 13,418; 6,768; 6,804; 7,191; 7,306;
and 18,475 square feet of impervious area, respectively.
3. Each sand filter will be limited to the treatment of that amount of built -upon area indicated in
Section 1.2 and Section 1.7 of this permit, and as shown on the approved plans and drainage
area map. The built -upon area for the future development is limited to 0 square feet.
4. The runoff from all built -upon area within the permitted drainage areas of this project must be
directed into the appropriate permitted stormwater control system.
5. The grated cover over the sediment chamber is designed for H-10 loading because the filters
are not subject to traffic loads. The sand chamber has no cover.
6. The project shall provide a 50 foot wide buffer adjacent all surface waters, measured
horizontally from and perpendicular to the normal pool of impoundments, the top of bank of
both sides of rivers and streams, and the mean high water mark of tidal waters.
Page 1 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
7. The following design criteria have been permitted for the 14 proposed sand filters and must be
provided and maintained at design condition:
Design Criteria
DA 1
DA A
DA Al
DA A2
DA A3
DA B
DA C
a. Drainage Area: acres
-Onsite, ft2
-offsite, ft2
3.69
160,895
0
0.7
30,401
1 0
0.56
24,385
0
0.37
16,079
0
0.40
17,225
0
2.09
90,940
0
2.08
90,566
0
b. Total 6UA, ft2
159,895
24,436
18,067
10,447
11,853
78,471
78,927
c. Design Storm, in.
1.5
1,5
1.5
1.5
1.5
1.5
1.5
d. Musted WQV, ft3
14,245
2,204
1,639
957
1,081
7,047
7,084
e. Provided WQV, ft3:
16,192
2,198
1,704
1,704
1,704
7,251
7,251
f. Wax, feet
2.0
2.58
2.0
2.0
2.0
2.16
2.16
g. Weir Elevation, FMSL
12.5
15,49
16.16
16.87
17.06
16.75
16.35
h. Bottom elevation, FMSL
9.5
12.01
12.66
13.37
13.56
13.09
12.69
L SHWT Elevation, FMSL
5.0
13.3
15.40
13.00
13,00
14.00
14.00
'. Sand Filter Area, ft2
8,096
852
852
852
852
3,357
3,357
k. Sediment Area, A., ft2
5,544
437
437
437
437
2,263
2,263
I. Sand Area As, ft2
2,552
415
415
415
415
1,094
1,094
m. Underdrain dia. <40 hrs.
6"
6"
6"
6"
6"
6"
6"
Design Criteria
DA D
DA E
DA E1
DA E2
DA E3
DA E4
DA F
n. Drainage Area: acres
-Onsite, ft2
-Offsite, ft2
1.56
67,842
0
0,53
23,138
0
0.28
12,394
0
0.29
12,543
0
0.30
12,947
0
0.31
13,422
0
1.12
48,371
0
o.TotaI BUA, ft2
57,521
13,418
6,768
6,804
7,191
7,306
18,475
p. Design Storm, in.
1.5
1.5
1.5
1.5
1.5
1.5
1.5
q. Adjusted WQV, ft3
5,171
1,241
629
633
667
679
1,787
r. Provided WQV, ft3:
5,568
1,256
1,256
1,256
1,256
1,256
1,890
s. HMax, feet
2.0
2.00
2.0
2.0
2.0
2.0
2.0
t. Weir Elevation, FMSL
17.44
18.95
18.59
18.23
18.05
17.91
17.39
u. Bottom elevation, FMSL
13.94
15.45
15.09
14.73
14.55
14.41
13.89
v. SHW7 Elevation, FMSL:
14.50
10.7
15.0
14.0
14.50
15.50
15,00
w. Sand Filter Area, ft2
2,784
628
628
628
628
628
945
x. Sediment Area, As , ft2
1,878
322
322
322
322
322
482
Y. Sand Area Af, ft2
906
306
306
306
306
306
463
z. Underdrain dia. <40 hrs.
6"
1 6"
6"
6"
6"
6"
6"
il. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety and operational for its
intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately.
3. Records of maintenance activities must be kept for each permitted BMP. The reports will
indicate the date, activity, name of person performing the work and what actions were taken.
4. If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to occupancy of the
facility.
Page 2 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
5. The permittee shall at all times provide the operation and maintenance necessary to assure
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 revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow spreader,
catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
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. A modification may be required for those deviations.
B. Clear and unobstructed access,to the stormwater facilities shall be maintained at all times.
9. 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.
10. 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.
11. A copy of the approved plans and specifications shall be maintained on file by the Permittee at
all times.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
III. GENERAL CONDITIONS
1. 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;
2. 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;
3. 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.
4. Any individual or entity found to be in noncompliance with the provisions of this stormwater
management permit or the requirements of the Stormwater rules is subject to enforcement
procedures as set forth in NCGS 143 Article 21.
5. 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.
6. In the event that the facilities fail to perform satisfactorily, 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.
7. The permittee grants DEQ Staff permission to enter the property during normal business hours
for the purpose of inspecting all components of the permitted stormwater management facility.
8.
9. Unless specified elsewhere, permanent seeding requirements for the stormwater controls
must follow the guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
10. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
11. 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.
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).
Page 4 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
Permit renewed, updated and reissued this the 41 day of September 2020.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Brian renn, i o
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
Attachment A
MCAS CALA Ordnance Loading Area, New River
Stormwater Permit No. SW8 080945
Onslow County
Designer's Certification
as a duly registered
in the State of North
Caroiina, having been authorized to observe (periodically/ weekly/ full time) the construction of the
project,
(Project)
for (Project Owner) hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans
and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7

State Stormwater Management Systems
Permit No. SW8 permit# 080945
Certification Requirements:
1. The drainage area to the BMP contains approximately the permitted acreage.
2. The drainage area to the BMP 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 appropriate BMP.
4. All roof drains are located such that the runoff is directed into the system.
5. The bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A grated cover is provided on the sediment chamber side.
8. A solid cover is provided on the sand chamber side.
9. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
10. The permitted amounts of filter chamber surface area and sediment chamber surface
area have been provided.
11. The required volume can be contained in the sand filter.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDEQ-DEMLR Regional Office
Page 7of7

DEMLH USE UNLY
�. Date ece ved Fee Paid Permit Number
,93 ;:)Q,90 6_s')q � I)Fo 9ILS,
E
NC. DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
1. State Stormwater Permit Number: SW8 080945
2. Project name: MCAS New River CALA
3. Project street address:
City: MCB Camp Leieune County: Onslow
ZIP: 28542
4. What, if any, changes have been made to the project as permitted? NIA
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https://deg.nc.gov/abouUdivisions/energy-
mineral-land-resources/energy-mineral-land-rules/stormwater-program/post-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at: https:f/deg.nc.gov/about/divisions/energy-mineral-land-
rescurceslenergy-mineral-land-ruleslstormwater-program/post-construction. State Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: MCB Camp Lejeune
2. Signing Official's Name: Neal Paul
3. Signing Official's Title: Deputy Public Works Division
4. Mailing Address: MCB Camp Lejeune 1005 Michael Rd.
City: MCB Camp Lejeune State: NC
ZIP : 28547-2521
5. Street Address:
City:
6. Phone: [phone] Email: [e-mail]
State: ZIP:
JUN 2 3 2020
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

r
C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HOW/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
MCT 1. A permit application processing fee of $505.00 payable to NCDEQ.
MCT 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D "North Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
MCT 3. One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including: deed restrictions, protective covenants,
condom iniumlplanned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
MCT 4. O&M Agreements, Please select one:
® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
MCT 5. Designer Certifications, Please select one:
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
❑ The project has not yet been built.
6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.gov/online_ services/search/by title/ Business Registration
JUN 2 3 2020
BY:_
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018

r
D. PER ITTEE'S CERTIFICATION
I, bia , 1. , the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or o ership. i rmation provided on this permit renewal application is, to the best of my
knowledge, corre t a complete.
Signature: Date: Zd
NOTAffilZ
I, a Notary Public for the State of
County of do hereby certify
that personally appeared before me
this t.µ , day of 12020 , and acknowledge the due
ex tiSPROeQ j4 i; g instrument. tness my hand and official seal,
NOTARY, s
Notary Seal)
o_ ''UBL1G
My commission expires o? f�l �, ,W2�
JUN 2 3 2020
BY.-
Stormwater Permit Renewal Application Form Page 3 of 3
May 11, 2018

�i Vt .i , IS!1
i},��5t id Ld LI i 11!^��1i •r7,
'� . mac• .,�:
rfr�+rlrell act:;tsll:ie..
.T�

DWQ USE ONLY
Date Received
Fee Paid Permit Number
/a -7 —11
oaD 9 ,g 8 9
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters. ❑ Universal Stormwater Management flan
❑ Other WQ M gmt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form ivay be photocopied for rise 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.):
Ordnance Loading Area AJ +i
2. Location of Project (street address):
Peimeter Street
City:MCAS New River, Camp Lejeune T _ County:Onslow 7_ip:28547
3. Directions to project (from nearest major intersection):
East on Douglas Rd. from Rt.17. "Turn right on Canal Street. Turn left on Perimeter Street
4. Latitude:34° 42' 10.08" N Longitude:77° 27' 11.16" W of the main entrance to the project.
H. PERMIT INFORMATION:
1. a. Specify whether project is (check one): []New ®Modification
b. If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW8 080945 its issue date (if known)November 6, 2008 and the status
of construction: ®Not Started ❑Partially Completed* ❑ Completed* *providc a designer's certificatimi
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the Stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control: 19.5 ac of Disturbed Area
❑NPDI:S Industrial Stormwater 7404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
j OCT 0 7 2011
Form SWU-101 Version Mun2010 Page 1 of 6 1

III. CONTACT INFORMATION
I.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:Conmianding Officer, Marine Corps Base, Camp Lejeune
Signing Official & TitIe:Mr._Car] H. Baker, Jr., P.E., Deputy Publiic_Works Director
b.Contact information for person listed in item 1 a above:
Street Address:1005 Michael Road
City NCB Camp Lejeune State:NC Zip:28547
Mailing Address (ifa pp7licabic):1005 Michael Road
City:CB Cam Lejeune State:NC Zip:28547
Phone: (910 ) 451-2213 Pax: (910 ) 451-2927
Emai[:car[[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. (I'his 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 Andress:
City:
Mailing Address (if rppIicnble):
City:
Phone: ( )
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: Mr. David Towler
Signing Official & Title:Mr. Carl H. Baker, Jr., P.E., Deputy Publiic Works Director
b.Contact information for person listed in item 3a above:
Mailing Address:Public Works Division, Building 1005, Civil Design Branch
City:MCB Camp Lejeune State:NC Zip:28547
Phone: (910 ) 451-3238 ext. 3284 Pax:
Email:david,towlerQusmc.trail
4. Focal jurisdiction for building permits: N/A - Federal Property
Point of Contact: Phone #: ( )
_R; CE�VED
Forrn SWU-101 Version 07Jun2010 Page 2 of 6 OCT 0 7 2011
�B

IV. PROJECT INFORMATION
1. In the space provided below, brief1y summarize how the storm water runoff will be treated.
Stormwater will drain via overland flow and an inlet and }wiping system to underground concrete
sedimentation and sandfilter BMPs. The BMPs discharge to existing drainage ditches.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.lf claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ' ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the White Oak River basin.
4. Total Property Area: 19.7 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area`:19.7 acres
Total project area shall be calculated to exclude thefollowing: tyre normal pool of impounded structures, file area
between the batiks f f streams and rivers, the area below fire Normal High Writer (NHW) lure or Mean High Water
(MHM lure, and coastal roeflands landu7ard froru the NHW (or MHW) line. The resultant rroject area is used to
calculateoverall percent bitilt upon area (BUA). Noii-coasta1717ellarfils lallft7(7ard of the NHW (or MHW) lure Iriay
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 39.5 %
9. How many drainage areas does the project have?14 (For high deusihj, count I for each proposers engineered
stormwater BMP. For low densihj and other projects, rise 1 for the whole properhf 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.
Basin Information
Drainage Area A
Drainage Area
Al
Drainage Area
A2
Drainage Area
A3
Receiving Stream Name
New River
New River
New River
New River
Stream Class *
SC
SC
SC
SC
Stream Index Number *
19-7
19-7
19-7
19-7
Total Drainage Area (so
30,401
24,385
16,079
17,225
On -site Drainage Area (so
30,401
24,385
16,079
17,225
Off -site Drainage Area (so
0
0
0
0
Proposed Impervious Area** (so
24,436
1 18,067
10,447
11,853
% Impervious Area** total
80.4
1 74.0 1
65.0
68.8
2
Impervious** Surface Area
Drainage Area A
Drainage Area 11
Drainage Area
Drainage Area
On -site Buildin s/Lots (so
0
0
0
0
On -site Streets (so
0
0
0
0
On -site Parking (so
0
0
0
0
On -site Sidewalks (so
0
0
0
0
Other on -site (so
24,436
18,067
10,447
11,853
Future (so
0
0
0
0
Off -site (SO
0
0
0
0
Existing BETA*** (so
0
0
0
0
Total (so:
24,436
1 18,067
1 10,447
11,853
* Stream Class and lrusex Number can be determined at: http://pnrFal.rrcflelrr.org r el7/zoq/j�s/csrr/classifcatious
Inf iervrous area is defined as the built llpon area including, but Trot linfited to, buildings, roads, parking areas,
sifVcu7alks, gravel areas, etc. - -7 _ ._
Form SWU-161 Version 07.1un2010 Page 3 of 6
NOV 1 4 Z011
.BY:

Section III, Project Information, no. 8
Basin Information
Draina a Area B
Receiving Stream Name
New River
Stream Class
SC
Stream Index No
19-7
Total Drainage Area sf
90,940
On -site Drainage Area sf
90,940
Off -site Drainage Area sf
0
Proposed Impervious Area sf
78,741
% Impervious Area total
66.3
Impervious Surface Area
Drainage Area B
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf
78,741
Off -Site sf
0
Total sf
78,741
Basin Information
Drainage Area C
Receiving Stream Name
New River
Stream Class
SC
Stream Index No
19-7
Total Drainage Area sf
90,566
On -site Drainage Area sf
90,566
Off -site Drainage Area sf
0
Proposed Impervious Area sf
78,927
% Impervious Area total
87.1
Impervious Surface Area
Drainage Area C
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area (so
0
Other On -site sf
7B,927
Off -Site sf
0
Total sf
78,927
Basin Information
Draina a Area D
Receiving Stream Name
New River
Stream Class
SC
Stream Index No
19-7
Total Drainage Area sf
67,842
On -site Drainage Area sf
67,842
Off -site Drainage Area sf
0
Proposed Impervious Area sf
57,521
% Impervious Area total
84.8
Impervious Surface Area
Drainage Area D
On -site Buildin s Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area (s_q
0
Other On -site sf
57,521
Off -Site sf
0
Total sf
57,521
NOV 1 4 2011

Basin Information
Drainage Area E
Receiving Stream Name
New River
Stream Class
SC
Stream Index No
19-7
Total Drainage Area sf
23,138
On -site Drainage Area sf
23,138
Off -site Drainage Area sf
0
Proposed Impervious Area sf
13,418
% Impervious Area total
58.0
Impervious Surface Area
Drainage Area E
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf -
13,418
Off -Site sf
0
Total sf
13,418
Basin Information
Drainage Area E-1
Receiving Stream Name
New River
Stream Class
SC
Stream Index No
19-7
Total Drainage Area sf
12,394
On -site Drainage Area sf
12,394
Off -site Drainage Area sf
0
Proposed Impervious Area sf
6,768
% Impervious Area total
54.6
Impervious Surface Area
Drainage Area E-1
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf
6,768
off -site (SO
0
Totai (sf)
6,768
Basin Information
Drainage Area E-2
Receivin Stream Name
New River
Stream Class
SC'
Stream Index No
19-7
Total Drainage Area sf
12,543
On -site Drainage Area sf
12,543
Off -site Drainage Area sf
0
Proposed impervious Area sf
6,804
% Impervious Area total
54.3
Impervious Surface Area
Drainage Area E-2
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf
6,804
Off -Site sf
0
Total sf
6,804
f_,
NOV 1 4 2011
BX:

Basin Information
Drainage Area E-3
Receiving Stream Name
New River
Stream Class
Sc
Stream Index No
19-7
Total Drainage Area sf
12,947
On -site Drainage Area sf
12,947
Off -site Drainage Area sf
0
Proposed Impervious Area sf
7,191
% Impervious Area total
55.5
Impervious Surface Area
Drainage Area E-3
On -site Buildings Area sf
0
On -site Streets Area sf
0-
On-site Parkin Area sf
0
On -site Sidewalks Areas
0
Other On -site sf
7,191
Off -Site sf
0
Total (sf)
7,191
Basin Information
Drainage Area E-4
Receivin Stream Name
New River
Stream Class
5C
Stream Index No
19-7
Totai Drainage Area sf
13,422
On -site Drainage Area sf
13,422
Off -site Drainage Area sf
0
Proposed Impervious Area sf
7,306
% Impervious Area total
54.4
Im ervious Surface Area
Drainage Area E-4
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf
7,306
Off -Site sf
0
Total sf
7,306
Basin Information
Drainage Area F
Receiving Stream Name
New River
Stream Class
Sc
Stream Index No
19-7
Total Drainage Area sf
48,731
On -site Drainage Area sf
78,431
Off -site Drainage Area sf
0
Proposed Impervious Area sf
18,475
% Impervious Area total
37.9
Impervious Surface Area
Drainage Area F
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area (sq
0
Other On -site sf
18,475
,Off -Site sf
0
Total sf
18,475
NOV 14 Z011

Existing Sand Filter - Permit no. SW 8080945
Basin Information
Drainage Area 1
Receiving Stream Name
New River
Stream Class
Sc
Stream Index No
19-7
Total Drainage Area sf
160,895
On -site Drainage Area sf
160,895
Off -site Drainage Area sf
0
Proposed Impervious Area sf
159,895
% Impervious Area total
99.0
Impervious Surface Area
Drainage Area 1
On -site Buildings Area sf
0
On -site Streets Area sf
0
On -site Parkin Area sf
0
On -site Sidewalks Area sf
0
Other On -site sf
159,895
Off -Site sf
0
Total sf
159.895
pC 1..7'J'_ J..1 .
NOV 1 4 2011
BY:

'Report only that amount of existing BUA IItaI will rerrrain after developarrenl. Do not report any existing BUA ilia
is to be removed and which zoill be replaced by nctu BLIA.
TL How was the off -site impervious area listed above determined? Provide documentation.
No off -site impervious areas
Proiects in Union County: ComtactDlir) Cemtra101gicest;lll7o claecirililfrprojectislocated ttitlrirr a 7TireatenrdcC
l nd.•arf"'er•ed Species n rtershrd that mra}ybe subject to more stringent ,rtor•runmtcr r-cquir-enirms as per A'CAC 0 B.0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from htt ortal.ncdenr.or, web w ws su bm -manual.
VI. SURN411TAL R QUIREMENITS
Only complete application packages will be accepted and reviewed by the Division of lVater Quality (D" Q).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available from does. The complete
application package should be submitted to the appropriate DIVQ Office. (The appropriate office maybe
found by locating project on the interactive online map at web/wq/tivs/su/maw.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blr,e ink. Download the latest versions
foreach submitted application package from htty//2ortal.ncdennor-;�/web/avq/ws/su/statesw/forms dots.
Initials
1. Original and one calm of the Stormwa ter Management Permit Application Form. AL-6
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants N/A
Form. (if required as per Part V11 below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreenient(s) for each BMP.
4. Permit application processing fee of $505 payable to NCOENK. (For an Express review, refer to
hit//4�ww.envhclp.org/pages/onestopexpress.lntml for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managenientfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USCS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/4 mile of the site boundary, incl ude the'h
mile radius on the map.
7. Sealed, sighed and dated calculations.
S. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location rnap with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the Ml-IW or NHW lines.
• Delizieate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site layout with all BUA identified and dimensioned,
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
I. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
Form SWU-101 Version 07Jun2010 Pagc 4 or6
Ali
A LS
ALL
ALB
AUa
RECEIVED
OCT 0 7 2011
BY:

n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calcu]ations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SH%Vl' elevations (Please identify 1LO>
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. include an 8.5"xli" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMI's, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verrff the SHWT prior
to stabnaittal, (9.70) 796-7378.)
10. A copy of the most current property deed. Deed book: NIA Page No: N/A N/A
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC NIA
Secretary r>f State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H.1003(e). "bite
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application wiil be returned.
Initl2 //www_secretarv_state:me.us/Corporations/CSearch.gVxx
VI1. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparceis, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http:/ jportal.ircclenr.ora/%,,eb/wit/ws/su/statesw/forms does. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot.
V111. 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:Anna Lee Bamforth, P.E., L..S., LFFD AP „
Consulting Firm: C. Allan Bamforth fr., En ineer-Survevor Ltd.
Mailing Address:2207 Hampton Boulevard
City:Norfolk State:VA Zip:23517
Phone: f757 ) 627-7079 Fax: (757 ) 625-7434 _
Email:a I [e-mail]
IX. PROPERTY OWNER AUTHORIZATION (if Contact Infirnnation, itean 2 has been filled oast, complete this
section)
1, (prim or hype rranre 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 Iarforwation, item 1a) With (print or hype rranre of organization listed in
Contact lnforrrratiou, ileirf 7a) 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.
RECEIVED
Form SWU-101 Version 07Jun2010 Page 5 of 6 OCT Q 7 2011
BY:

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Storinwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days, otherwise 1 will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: Da
a Notary Public for the State of , County of
do hereby certify that
personally appeared
before me this _ day of 1 , and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAT,
My commission expires
X. APPLICANT'S CEirrIFICATION
1, (pritit or type rirrrrre of person listed in Contact Information, item In) r ar I � Qa ker
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 storiyii ater rules under/)A NCkC 2I-1 .1000, SL 2006-246 (Ph. 11- Post Construction) or SL 2008-21.1.
Signature
I, l v (,W D�'T I a Notary Public for the State of l ►^ tX County of
n 6►N do hereby certify that 1 personally appeared
before me this'T day occ- X -Q{l , and ac nowiedge the due execution of the pplication for
`
a stormwater permit. Witness my hand and official seal,
1 6
SYLVIA NORRIS
NOTARY PUBLIC
ONSLOW COUNTY,
MY COMMISSION EXPIRES
S I E A I.,
My commission expires 0/5
RECEIVED
Norm SWU-101 Version 07Jun2010 Page 6 of 6 OCT U 7 2011
BY:

State Stormwater Management Svstems
Permit No. SW8 080945
MCAS Marine Corps. CALA New River
Stormwater Permit No. SW8 080945
Onslow County
Designer's Certification
I, James J. Burns , as a duly registered Engineer
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
CALA, MCAS New River
(Project)
for US Marine Corps, Camp Lejeune (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:
P, P 2" ?,W I �)L'i% Ri'T fy .r v, jS 1v/°+�. Cr`C� t - LZ.t l f sp,-&o vz-
LVhf- f-Act.- t✓< ' 7n11J-1 en[Ova. �VI
A,--��
Signature
Registration umber 31185
Date a1 A
tl t 11 t,,,
CARo
SS!'964, JL ,
:Q
bk5 -
•.c��yGINE�Q;.
RECEIVED
AUG 0 4 2011-
$Y:

A. State Stormwater Management Svstems
Permit No. SW8 080945
Certification Requirements:
i-1The 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.
-CV-5. The outlet/bypass structure elevations are per the approved plan.
�6. The outlet structure is located per the approved plans.
W7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
1. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
�3. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.

DEPARTMENT OF THE NAVY TELEPIIONF.:
OFFICER IN CHARGE OF CONSTRUCTION 910-449-5587
RESIDENT OFFICER IN CHARGE OF CONSTRUCTION FAX [phone]
NAVAL FACILITIES ENGINEERING COMMAND CONTRACTS IN REPLY REFER TO:
1005 MICHAEL ROAD
CAMP LEJEUNE, NC 28547-2521 JAX/jjb
21 Jul 2011
From: Jim Burns, SCM O1CC
To: Carl Baker, Deputy PWO
Subj: N40085-07-D-1911 T.O. 0030, CALA AND FIRE TRAINER INTERIM FACILITIES,
MCAS NEW RIVER, STORM WATER PERMIT SW8-080945
Ref: (a) Storm Water Permit SW8-080945
Encl: (1) Engineering Certification
1. As required by reference (a), enclosure (1) provides the Engineer's Certification.
2. if there are any further questions concerning the subject contract, please call the undersigned at
[phone].
V-J.J. Burns, P.E.
Quality Performance ... Quality Results

Permit Number: ,-mV )w
(to be provided by DWQ)
oFwnT�y
r
NC®ENR,
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must befitted 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 1&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA AND FIRE TRAINER: INTERIM FACILITIES
Contact name Randy Scott
Phone number 910.449-5401
Date
Drainage area number 1 - CALA SITE
II. DESIGN INFORMATION
Site Characteristics
Drainage area (An)
160,895.00 ft2 OK
Impervious area
159,895.00 ft 2
% Impervious (IA)
99.4% %
Design rainfall depth (Ro)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.50 in
t-yr, 24-hr intensity
0.15 inihr
Pre -development 1-yr, 24-hr runoff
1.25 ft315eC
Post -development 1-yr, 24-hr runoff
9.48 ft3lsec
PreiPost 1-yr, 24-hr peak control
8.22 ft: 3lsec
Storage Volume
Design volume (WQV) 18,886.00 ft3
Adjusted water quality volume (WQVAdi) 14,164,50 It OK
Volume contained in the sedimentation basin and on top of the sand filter 16,192,00
Maximum head on the sedimentation basin and sand filter (hu,.Fifter) 2.00 ft OK
Average head on the sedimentation basin and sand filter (hA) 1.00 ft OK
Runoff Coefficient (Rv) 0.94 (unitless)
Type of Sand Filter
Open sand filter?
If this is an open sand filter: The clearance between the bottom of the sand
filter and the SHWT (dsHwT)
Closed/pre-cast sand filter?
If this is a closed sand filter: The clearance between the bottom of the sand
filter and the SHWT (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
structure (ds,eg)
Y YorN
>4.5 ft
N YorN
ft
ft
zr >e iA , I i ✓ r -,.
OCR 2 b zoos
Form SW401-Sand Filter-Rev.3 Parts I and II. Project Design Summary, Page 1 of 3

Permit Nwmber.5
(to be provided by DM,,
Sedimeritation Basin
OK. Meets minimum, but may need to be increased to
Surface area of sedimentation basin (As)
5,544,00 ftz
contain the required volume if error under Storage
Volume section.
Sand Filter
OK. Meets minimum, but may need to be increased to
Surface area of sand filter (AF)
2,552,00 ft'
contain the required volume if error under Storage
Volume section.
Depth of the sand media fitter bed (dF)
1.50 ft
Coefficient of permeability for the sand filter (k)
.3,50 (ft/day)
Time to drain the sand filter (t)
40.00 hours
OK. Submit drainage calculations.
Time to drain the sand filter (t)
1.67 days
Additional Information
Does volume in excess of the design volume bypass the sand filter?
lv;j.yll
YorN
OK
Is an off-line flow -splitting device used?
Y or N
OK
Does volume in excess of the design volume flow evenly distributed through a
Y
YorN
OK
vegetated filler?
What is the length of the vegetated filter?
' s `90,00 ft
Does the design use a level spreader to evenly distribute flow?
Y or N
OK
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
j, -Y
YorN
OK
Is the BMP located at least 100ft from water supply wells?
Y or N
OK
Are the vegetated side slopes equal to or less than 31
Y DrN
OK
Is the B M P located in a recorded drainage easement with a recorded access
i l
NA—
Y or N
Insufficient ROW location,
easement to a public; Right of Way (ROM?
What is the width of the sedimentation chambedforebay (VVS,d)?
21 ft
A
OK
What is the depth of sand over the outlet pipe?
ft
OK
Figure 1: Open Sand Filter
(or Forehn�)
gT
� PI&
t
III-Sil . it Soil Se nisonab IHin Ii 'Watel' T, b Ire
................................
Sod
S:�ud Filter
0.1.. tit
F
..
��+7� Z11.1 �1: .11 1,ig. ITI�1:.-lfit
. ............ft I and..
cl,
RVV7
..........
TT---7
7-
T�'
OC, T
13Y- 7-0
'.
Form SW401-Sand Filter-Rev-3 Parts I and 11. Project Design Summary, Page 2 of 3

Permit Number.so�yso% a 19
(to be provided by DWQ)
Figure 2: Closed Sand Filter
l
Mow`""f SalI(I
{k t •k.3f1 Otitlel Pipc
Flow �' J M1 °u'F.a'i4'C'rb it
r
� 1 •4
Mhuctulal lit
atulal)".. --
" ryti1c++
Ll-SitnSuil t`+14.1, ftMkp
c il�[-IWT
.......... :...... ..
NViter Table
Itel Sedil eeiltatioll C'halltl+ci (F�ii cbn)•)''3 5a11d Filter Clln'yll+cir
(tic r-y scrimen:s. (T-ppad Soils)
Collected Orpds ;, Dc6:is).
r.�
7.n i 2 7n 8
BY
Form SW401-Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 3 of 3

i
Permit No.::5'U-YV&0 Ycwj
(to be provided by DWQ)
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.
CGO01 1. Plans (10 - 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.
Ca CG502 2. Plan details (1" = 50' 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,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable), and
- Boundaries of drainage easement.
C9 CG502 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,
- SHWT level(s)
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable)
cas 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.
Ca ATTACHED 5. Supporting calculations (including drainage calculations)
c&s ATTACHED 6. Signed and notarized operation and maintenance (O&M) agreement
NIA 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.3 Part III, Page 1 of 1

=' r
•.y.1 7 =y
NCDENR p
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form most be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)l
I. PROJECT INFORMATION
Project name
CALA and Fire Trainer. Interim Facilities
Contact name
Randy Scott
Phone number
910- 49-5401
Date
October27, 2008
Drainage area number
2 - Fire Trainer Site
II, DESIGN INFORMATION'
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
60,568.00
ftz
Impervious surface area
46.004.00
ft2
Percent impervious
75.95
%
Rational C coefficient
0.60
Peak Flow from the 1 inlhr storm
0.83
cis
Time of concentration
16.00
min
Rainfall intensity, 10-yr storm
4.6 inlhr
Peak flow from the 10-yr storm
3.84
cfs
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? Y (Y or N) Please complete filler strip characterization below
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 50.00 ft
Width of dense ground cover 0.00 ft
Width of wooded vegetation 0.00 ft
Total width 50,00 ft
Elevation at downslope base of level lip 19.10 fmsI
Elevation at top of bank of the receiving water 18.60 fmsI
Slope (from level lip to to top of bank) 1,00 % OK
Are any draws present? N (Y or N) OK
Level Spreader Design 7�
Forebay surface area sq ft OK
Feet of level lip needed per cfs 13 fticfs
Answer "Y" to one of the following: 0 C T 2 ��
Length based on the 1 inlhr storm? N (Y or N)
Length based on the 10-yr storm? Y (Y or N) BY:
Length based on the BMP discharge rate? N (Y or N)
Design flow 2.03 cfs
Is a bypass device provided? N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5
Parts I. and II. Design Summary, page 1 of 2

Length of the level lip
Are level spreaders in series?
50.00 ft Level spreader length OK.
N (Y or N)
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram belaw);
M
B
w
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
(Y or N)
Do not complete this section of the worksheet.
(Y or N)
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet.
It
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet.
It
Do not complete this section of the worksheet.
cfs Do not complete This section of the worksheet
Do not complete this section of the worksheet
• w •
F
t*------------
M
B
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev-5 Parts I. and 11. Design Summary, page 2 of 2

1
`r --^"C7"'" ti Y� '?'d` � I } �"��• � �"K' � Y ii, �i ..c tii��''�` r s��7 �I e^.
IILf RI=Q 010,ITEW1 EGG"ISTt
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.
Page! Plan
Initials Sheet No.
ret !9 CGO02 1. Plans (1" - 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),
- Forebay (if applicable),
High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROM, and
- Boundaries of drainage easement.
cza'6 CG504 2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build -out.
_cAeg CG504 3, Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
C GZ 3 CG504
err 3 Attached
C23 Attached
NIA
4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
6. The supporting calculations.
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
8. A copy of the deed restrictions (if required).
OCT
�Z._
I
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5
Part III, page 1 of 1

fiRtAOFW A TFq�NCDENR "� Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)t
I. PROJECT INFORMATION
Project name CALA and Fire Trainer: Interim Facilities
Contact name Randy Scott
Phone number 910449-5401
Date September 16, 2008
Drainage area number 1- CALA Site
II. DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP Sand Filter and Dry Detention
Drawdown flow from the BMP 4.27 cis
For Level Spreaders Receiving Flow from the Drainage Area
Do not complete this section of the worksheet.
Drainage area
ft2
Do not complete this section of the worksheet.
Impervious surface area
ft2
Do not complete this section of the worksheet.
Percent impervious
%
Do not complete this section of the worksheet.
Rational C coefficient
Do not compiete this section of the worksheet.
Peak flow from the 1 inthr storm
cfs
Do not complete this section of the worksheet.
Time of concentration
min
Rainfall intensity, 10-yr storm
inlhr
Do not complete this section of the worksheet
Peak flow from the t 0-yr storm
cfs
Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge ?
To a grassed bioretention cell? N (Y or N)
To a mulched bioretention cell? N (Y or N)
To a wetland? N (Y or N)
To a filler strip or riparian buffer? N (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level tip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the foltowing:
Length based on the 1 inmr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Form SW4D1-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5
0.00
0.00
0.00
0.00
0.00
0,00
#DIVIO!
N
ft
ft
ft
ft
fmsl
tmsl
(Y or N)
sq ft
#DIWO! _ft/cfs
N (Y or N)
Y (Y or N)
N (Y or N)
1.94 cfs
N (Y or N)
OK Ly
No forebay is ne
#DIVIOi
A bypass device is not needed.
Paris I. and II. Design Summary, page 1 of 2

Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a Welland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
------------
M
♦ B
22.00 ft
N (Y or N)
#VALUE!
(Y or N)
Do not complete this section of the worksheet.
(Y or N)
Do not complete this section of the worksheet.
Do not complete this section of the worksheel.
ft
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet.
ft
Do not compieto this section of the worksheet.
cfs
Do not compiefe this section of the worksheet
Do not complete this section of the worksheet
OCT
BY:
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I, and II, Design Summary, page 2 of 2

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.
Page/ Plan
Initials Sheet No.
ca CGO01 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),
Forebay (if applicable),
High flow bypass system,
- Maintenance access,
Proposed drainage easement and public right of way (ROW), and
Boundaries of drainage easement.
e-et13 CG504 2. Plan details (V = 30' or larger) for the level spreader showing:
Forebay (if applicable),
High flow bypass system,
One foot topo lines between the level lip and top of stream bank,
Proposed drainage easement, and
Design at ultimate build -out.
cQ 3 CG504 3. Section view of the level spreader (1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
Upslope channel, and
Downslope filter fabric.
4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
ea 19 CG504 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
cct 3 Attached 6. The supporting calculations.
CO3 Attached 7. A copy of the signed and notarized operation and maintenance (00) agreement.
NIA 8. A copy of the deed restrictions (if required).
RF
OCT 0 9 7008
BY:
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part 111, page 1 of 1

Permit Number:.5�k J
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
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. 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:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (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 remedi ate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clog ed.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
re air.
C:1� �TF'
OCT 9 7I1f1R
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3

.r
BMP element:
Potentialproblem:
How I will remediate theproblem:
The swaIe and the level
'The swale is clogged with
Remove the sediment and dispose
lip
sediment,
of it off -site.
The level lip is cracked,
Repair or replace lip,
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the Ievel lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
if applicable).
a roximatel three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application._
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
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,
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
outlet.
401 Oversight Unit at 919-733-1786.
[RECETNTFa
1
1Q 9 7RR8
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer L1VM:Re1V.3======Page2 of 3

Permit Number: 5IAj �-Ci $o �qS-
(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 systern or responsible party.
Project name:CALA and Fire Trainer: Interim Facilities
BMP drainage area number:l (CALA Site
Print name:Carl H. Baker, P.E.
Title:Deputy Public Works Officer
Address: Building 1005 Michael Road, MCB Camp Lejeune, NC, 28547
PI
Si
Date: y —o257—D ?
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
County of , do hereby certify that
personally appeared before me this �
day ofOTtdfZ_ and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL ...
DCT �
My commission expires � BY:
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

Permit Number: GU U j
(to be pro ided by D l'YQ)
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 i i 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.
- Once a year, sand media will be skimmed.
The sand filter media will be replaced whenever it fails to function properly after
vacuuming.
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 theproblem:
The entire BMP
Trash/debris is 2resent.
Remove the trash/debris.
The adjacent pavement
Sediment is present on the
Sweep or vacuum the sediment as
(if applicable)
pavement surface.
soon as possible.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
sand filter
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -tune fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The flow diversion
The structure is clogged.
Unclog the conveyance and dispose
structure
of any sediment off -site.
The structure is damaged.
Make any necessary repairs or
replace if damage is 'too large for
repair.
The pretreatment area
Sediment has accumulated to
Search for the source of the
a depth of greater than six
sediment and remedy the problem if
inches.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
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
f
-hand.—If'a1pesticide is used, wipe it
on the' lasts rather than s ra yin .
Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3
BY:

BMP element:
Potentialproblem:
How I will remediate theproblem:
The filter bed and
Water is ponding on the
Check to see if the collector system
underdrain collection
surface for more than 24
is clogged and flush if necessary. If
system
hours after a storm.
water still ponds, remove the top
few inches of filter bed media and
replace. If water still ponds, then
consult an expert.
The outflow spillway
Shrubs or trees have started
Remove shrubs and trees
and pipe
to grow on the embankment.
immediately.
The outflow pipe is clogged.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion probleis.
The outflow pipe is damaged.
Repair or replace the pipe.
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.
TZ
Form SW401-Sand FilterO&M-Rev.3 Page 2 of 3

• Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that 1 am responsible for the
performance of the maintenance procedures Iisted 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:CALA and Fire Trainer: Interim Facilities
BMP drainage area number: l (GALA Site)
Print name:Carl H. Baker. P.E.
Title:Deputy Public Works Officer
Address: Building_ 1005 Michael Road, MCB Camp Lejeune, NC, 28547
Phone
Signat
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
/0lXa& —&&- I,a , County of L2�s�hL� , do hereby certify that
O2 cc�iA. 2 personally appeared before me this
day of , z�, and acknowledge the due execution of the
forgoing sand filter maintenance requirements. Witness my hand and official seal,
1111//'F/
G�EU..E CO
s'
I
2 VB L1G A ;' C)
wCOUN
SEAL
My commission expires 2
Form SW401-Sand Filter O&M-Rev.3 Page 3 of
3

1
i
r
Permit Number:
(to be provided by DWQ)
OF wAr�R
®�A 0 �G
AN
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 W) and the l&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number
Date
Drainage area number
910-451-3238
November 3, 2011
A
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
30,401.00 ft2 OK
Impervious area
24,436.00 ft2
% Impervious (IA)
80.4% %
Design rainfall depth (Rc)
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 (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 (hMa&iter)
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 (dsHm)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dSHWr)
J 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.e)
3,50 in
0.15 inlhr
0.59 ft3lsec
1.75 ft3lsec
1.16 ft3lsec
2,927,00 ft3
2,195.25 ft3 OK
2,198.00 ft3
15.99 ft amsl
15.49 -ft amsl
2.58 ft OK
1.29 ft OK
0.77 (unitless)
YorN
ft amsl
ft amsl
Y YorN
13.30 ft amsl
10.41 ft amsl
-3.10
NOV 1 4 Z011
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II- Proiect Design Summary, Page 1 of 2

i
Permit Number:
(Io be provided by DWQ)
Sgdimentation 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 (dp)
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 fitter?
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 Riqht of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wild)?
What is the depth of sand over the outlet pipe (dpipe)?
437.00 ftz OK. Meets minimum, but may need to be increased to
4.00 ft
415.00 ftz OK. Meets minimum, but may need to be increased to
12.91 ft amsl
11.41 ft amsl
1.50 ft
3.50 (fVday)
6.00 in
0.50 ft3lsec
40,00 hours OK. Submit drainage calculations.
1.67 days
Y Y or N OK
N Y or N Insufficient flow splitter.
YorN
ft
YorN
Y Y or N OK
YorN
YorN
YorN
4.00 ft OK
1.00 ft OK
NOV 14 2011
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and IL Project design Summary, Page 2 of 2

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 Pagel Plan
Sheet No.
CS001 1. Plans (V - 50' or larger) of the entire site v.,ith labeled drainage area boundaries
Cs506-cs5 t 1 - 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 light of way (ROW),
Design at ultimate build -out,
Off -site drainage (if app}icable), and
Rnnnrtmrioc of irninano aacamnnf
y5 CS506-cs51 r 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.
Cs506-CS511 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
annlirahlg).
Attached 4. A soils report that is based upon an actual field investigation, soil borings, and infiltrai}on 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.
CaA nuael,ed 5. Supporting calculations (including drainage calculalions)
Ca Attached G, Signed and notarized operation and maintenance (O&M) agreement
rv/A 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.5 2009Sept17
]RECEIVED
OCT 0 7 2011
Part III, Page 1 of 1

Permit Number: Sw 0 ?C,<Y, 7 5
(to 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 problem.
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 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.
=-F
Forth SW401-Sand Filter O&M-Rev.4 2009Septl7 Page l of 3

• � 4
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.
ANTED
Form SW401-Sand Filter O&M-Rev.4 20095ept17 j OCT 2 6 2011 page 2 of 3
I.

Permit Number:
(to be provided by D[VQ)
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:Ordnance Loading Area Addition
BAP drainage area number.
Print name:Carl H. Baker Jr.
Title0e utv Publics Works Officer
Address:1005 Michael Road
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.
I, Z& Z a Notary Public for the State of
/,a,///i�A� , County of do hereby certify that
,�P/Z/ personally appeared before me this �1day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements
Witness my hand and offcial seal,
AUCE A. BONNETTE
Notary Public
Onslow County
State of North Carolina _
Commleslon E ire V
SEAL
My commission expires o:z7 r—
7OCTr_..��vEDForm SW401-Sand Filter 0&M-Rev.4 2009Septl7 66 Z011
Page 3 of 3

t
Permit Number:
(to be provided by DWQ)
Ajr �oF wn r�9
`*.7 y
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must 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 1V)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 910-451-3238
Date
Drainage area number
November 1, 2011
A-1
11. DESIGN INFORMATION
Site Characteristics
Drainage area (Ao)
24,385.00 ft2 OK
Impervious area
18,067.00 ft2
1/6 Impervious (IA)
74,1% %
Design rainfall depth (Rti)
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 (WQVAli)
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 (hMaxrdter)
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 (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
structure (dgaace)
3.50 in
0.15 inlhr
0.47 ft3/sec
1,32 ft3/sec
0.85 ft3lsec
2,195.00 ft3
1,646.25 ft3
1,704.00 ft3
16.66 ft amsl
16.16 ft amsl
2.00 ft
1.00 ft
0.72 (unitless)
YorN
ft amsl
ft amsl
Y YorN
15.40 ft amsl
11.66 ft amsl
-3,80
OK
OK
OK
RE, C:1w1 sue%
NOV 1 4 2011
BY:
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 1 of 2

t' ~
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 (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 Riqht of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsd)?
What is the depth of sand over the outlet pipe (dpipe)?
437.00 ft2 OK. Meets minimum, but may need to be increased to
4.00 ft
415.00 ft2 OK. Meets minimum, but may need to be increased to
14.16 ft amsl
12.66 ft amsl
1.50 ft
3.50 (ftlday)
6.00 in
0.50 ft3lsec
40,00 hours OK. Submit drainage calculations.
1.67 days
Y YorN OK
N Y or N Insufficient flow splitter,
YorN
ft
YorN
Y YorN OK
YorN
YorN
YorN
4.00 ft OK
1.00 ft OK
jg0v 1 4 2011
Form SW401-Sand Filter-Rev,5 2009Sept17 Parts I and It. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by D WQ)
III," REQUIRED ITEMS CHECKLIST-. z' '
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.
-t,� Csool 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS51.1 _ 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
- Rnimrlarioc nrrlrninnna oacomani
�s CS506-CS51 I 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.
CS506-CS51l 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,
Outiet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
annlicahle).
CJA 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 verifier in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
Cd,m Attuchea 5. Supporting calculations (including drainage calculations)
rnr3 Attached 6. Signed and notarized operation and maintenance (O&M) agreement
N/A 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.5 2009Sept17
RECEIVED
ou Q72011
BY:
Part 111, Page 1 of 1

Permit Number;
(Io be provided by D41Q)
Drainage Area Number: 74r 1
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 twill 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.
I
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 1 OCT 0 7 Z011 Page l of 3

BMP element:
Potentialproblem:
How l will remediate the problem -
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.
T-;; WED
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Uc f 0 7 2011 Page 2 of 3

Permit Number: 0 o gm �-5
(u) 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 nafne:Ordnance Loading Area Addition
BMP drainage area number.A
Print name:Carl H. Baker Jr.
Title:Deputy_Publics Works Officer
Address:1005 Michael Road
Phon,
Signo
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
/)I/ , County of do hereby certify that
JJ
d_z // _ _ _ personally appeared before me this C� day of
0-d , �/� , and acknowledge the due execution of the forgoing sand filter
maintenance requirements
Witness my hand and official seal,
[ --- ALICB A. BONNETit:
Notary Public
Onalow County
$fate of North Caroiin4
Otaeemt n 0e .� 3d r`/I
SEAL
My commission expires
Form SW401-Sand FilterO&M-Rev.4 2009Sept17
RECEIVED
OCT 0 7 20tl
BY:
Page 3 of 3

1
Permit Number:
(to be provided by DWQ)
1_«
`, h 7
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 /It) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name _CALA Ordnance Loadin4 Area Addition
Contact name David Towler
Phone number 910-451.3238
Date
Drainage area number
November 3, 2011
A-2
II. DESIGN INFORMATION
Site Characteristics
" Drainage area (AD)
16,079.00 ft2 OK
Impervious area
10,447.00 ft2
% Impervious (IA)
65.0% %
Design rainfall depth (Rp)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.50 .
in
1-yr, 24-hr intensity
0.15
inlhr
Pre -development 1-yr, 24-hr runoff
0.31
ft3lsec
Post -development 1-yr, 24-hr runoff
0,84
ft3lsec
Pre/Post 1-yr, 24-hr peak control
0,53
ft3lsec
Storage Volume
Design volume (WQV)
1,276,00 ff3
Adjusted water quality volume (WQVAai)
957.00 ft3
Volume contained in the sedimentation basin and on top of the sand filter
OK
1,704.00 ft3
Top of sand filter/grate elevation
17.37 ft amsl
Weir elevation (between chambers)
16,87 ft amsl
Maximum head on the sedimentation basin and sand filter (hMa'Rter)
2.00 ft OK
Average head on the sedimentation basin and sand filter (hA)
1.00 ft OK
Runoff Coefficient (Rv) .
0.63 (unitless)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
ft amsl
Clearance (dgHvrr)
Closed/pre-cast sand filter?
Y Y or N
SHWT elevation
13.00 ft amsi
Bottom of the sand filter elevation
12.37 ft amst
Clearance (dsHwT)
-0.70
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,,,)
Form SW401-Sand Filter-Rev.5 2009Sept17
NOV 44 2011
BY:
Parts I and II. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area of sedimentation basin (As)
tedimentation 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 throuoh 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 8MP located at least 10Cft 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 chamberlforebay (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
Form SW401-Sand Filter-Rev,5 2009Sept17
437.00 ft2 OK. Meets minimum, but may need to be increased to
4.00 ft
415.00 ff2
OK. Meets minimum, but may need to be increased to
14.87 ft amsl
13,37 ft amsl
1.50 ft
3.50 (fUday)
6,00 in
0,50 ftl/sec
40,00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
YorN
YorN
YorN
4.00 ft
OK
1.00 ft
OK
NOV 44 2011
Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
Ili:= 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.
CS001 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
Cs5a6-CS511 _ System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
,06 CS506-CS511
C,-,,-3 CS506-CSSII
�'(/3 Atl;ichcd
C c717 Attached
Ca rJ Attached
N/A
chamber,
- Maintenance access,
- Flow splitting device,
- Proposed drainage easement and public right of way (ROM.
- Design at ultimate build -out,
Off -site drainage (if applicable), and
Rni inrinr;ac nr rlrninnna oaccmanf
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 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
annlicahlel.
4. A soifs 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)
6. Signed and notarized operation and maintenance (0&M) agreement
7, A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.52009Sept17
RECETVED
OCT 0 7 2011
BY:
Part 111, Page 1 of 1

Pen nit Number: -I,, -I,, �� 111�r
(to 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 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 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.
'+C -TV
ED
{ OCT a 7 2011
Form SW401-Sand Filter O&M-Rev.4 2009SeptI7 i Page 1 of 3

BMP element:
Potentialproblem:
How 1 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.
zF,10EIVIED
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 Page 2 of 3
�Y:

Permit Number:.fW 0 0 o oq r5 1 0
(to be provided by Dit'Q)
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:Ordnance Loading Area Addition
BAV dra ina(Ie area n umber:
Print name:Carl 1-I. Baker Jr.
Title:DeDuty Publics Works Officer
Address:1005 Michael Road
Phone
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.
I, � �jr , a Notary Public for the State of
County of do hereby certify that/
personally appeared before me this Cr day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
AUCE A. SONNETTE
Notary PUbI
Onsfow County
State of North Carofina
Commission !=x Tres 0a`
SEAL
My commission expires ajr�'z/l-
.��.��` C.:�XVED
Form SW401-Sand Filter O&,M-Rev.4 2009Septl 7
OCT 0 7 2011
Page 3 of 3

Permit Number:
(to be provided by DWQ)
DF W A T�9
LTMA TMA O� OG
vC
r
NCDENR i Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on fine, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section !fl) and the ISM Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 910-451-3238
Date
Drainage area number
Ill. DESIGN INFORMATION
Site Characteristics
Drainage area (Au)
Impervious area
% Impervious OA)
Design rainfall depth (Ro)
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 filterlgrate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hMa,F;ltLr)
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 (dsHm)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dSHVrr)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand fitter and the bottom of the roof of the underground
structure (dsoace)
November 3, 2011
A-3
17,225.00 ftz OK
11,853.00 ftz
68.8% ago
1.50 in
3.50 in
0,15 inlhr
0.33 ft3lsec
0,90 ft3isec
0.57 ft'isec
1,441.00 ff3
1,080.75 ff3
1,704.00 ft3
17.56 It amsi
17.06 ft amsl
2.00 ft
1.00 ft
0.67 (unitless)
YorN
ft amsl
ft amsl
YorN
13,00 It amsl
12,56 ft amsl
3.06
OK
OK
OK
E
.! �..L.2011
Form SW401-Sand Filter-Rev.5 2009Sept77 Parts I and II. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area,3f 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 (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 fitter (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 Riqht of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsed)?
What is the depth of sand over the'outlet pipe (dpipe)?
Form 5W401-Sand Filter-Rev.5 2009Sept17
437.00 fiz OK. Meets minimum, but may need to be increased to
4.00 ft
415.00 ft2
OK. Meets minimum, but may need to be increased to
15.06 ft amsl
13.56 ft amsl
1.50 ft
3.50 (ftlday)
6.00 in
0.50 ft3lsec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
YorN
YorN
YorN
4.00 ft
OK
1,00 ft
OK
NOV 1 4 2011
Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(fo be provided by 0WO)
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 helow. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
«� Csaai 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS511 _ 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
Rniinrinr= of rirainana nntamonf
(:aLej CS506-CS511 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
CS506-CS511
Attached
_(]gel Attached
-� 4 Attachcd
NIA
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
annlirahiel.
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 sails
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 (O&M) agreement
7. A copy of the deed restrictions (if required),
Form SW401-Sand Filter-Rev.5 200gSeptl7
RECEIVED
OCT 0 7 2011
BY:
Part IH, Page 1 of 1

i
Permit Number:���"
(to be provided by DIVQ)
Drainage Area Number: A
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 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.
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17 OCT 0 7 2011 Page I of 3

BMP element:
Potentialproblem-
How l will remediate the problertt:
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.
I
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 OCT
� 7 z01 Page 2 of 3

Permit Number: 50? G9yC1*_S
(io be provided by DtvQ)
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:Ordnance Loading; Area Addition
BAP drainage area number:
Print name:Carl H. Baker Jr.
Title:Deputy Publics Works Officer
AddressA 005 Michael Road
Pho
Sigr
Datt
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
I. ��G �� p/�, _ _ , a Notary Public for the State of
County of �J/�; , do hereby certify that
�lr personally appeared before me this 0 day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
=A.BON7NETTENETTElicntyarolina��My res -`
SEAL
My commission expires
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
OCT a 7. 2011
BY:
Page 3 of 3

Permit Number:
(to be provided by DWQ)
i
KCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on fine, 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
CALA Ordnance Loading Area Addition
Contact name
David Towler
Phone number
910-451-3238
Date
November 3, 2011
Drainage area number
B
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
Peak Flow Calculations
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre-deveioprnent 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 (WOVAdi)
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 (hMaxrilter)
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 filler elevation
Clearance (dsHm)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filler elevation
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
structure (dspace)
Form SW401-Sand Filter-Rev.5 2009Sept17
90,940.00 ft2 OK
78,471.00 ffz
86 3% %
1.50 in
3.50 in
0.15 inlhr
1.75 ft31sec
5.50 ft,/sec
3.75 ft3lsec
9,445.00 ft3
7,083.75 ft3
7,251.00 ft3 OK
17.5 , ft amsl
16.75 ft amsl
2.16 ft OK
1.08 ft OK
0.83 (u0less)
Y or N
ft amsl
It amsl
Y YorN
14.00 ft amsl
12.09 ft amsl
-3.90
x 1Q 7 -
11 4 2011
NOVLB
Parts I and 11. Projecs Design Summary, -Page 1•of 2

At b
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 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 Riqht of Wav (ROW)?
What is the width of the sedimentation chamberlforebay (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
Permit Number;
(to be provided by DWQ)
2,263.00 ft2 OK. Meets minimum, but may need to be increased to
4.25 ft
1,094.00 ft2 OK. Meets minimum, but may need to be increased to
14.59 ft amsl
13.09 ft amsl
1.50 ft
3.50 (fUday)
6.00 in
0.50 ft/sec
40.00 hours OK. Submit drainage calculations.
1.67 days
Y YorN OK
N YorN Insufficient flow splitter,
YorN
ft
YorN
Y YorN OK
YorN
YorN
YorN
7.00 ft OK
1.00 ft OK
NOV 1 4 2011
IBY' :
Form SW401-Sand Fitter-Rev.5 2009Sept17 Parts I and 11. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DW4)
lA: REQUIRED ITEMS CHECKLIST,' A. . 211 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.
i :C. ��; CS001 1. Plans (1".- 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS511
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
C_04- CSjOG CS511
r•,7.s CS506-CS511
ca/l Attached
call Ast �cltcd
clq Attached
ruin
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
_ Rrn inrlariAc of r{raiionc a�camanl
2. Plan details (V = 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 (1 " = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand #titer chamber,
- Depth of sand filter media.
Connection between the sedimentation chamber and the sand filter chamber and weir elevatibn,
SHWT elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
annlirable). -
4. A soils report that is based upon an actuai 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)
5. Signed and notarized operation and maintenance (O&M) agreement
7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.5 2009Septi7
RFcE1VEI>
OCT 4 7 2011
BY -
Part
111, Page 1 of 1

Permit Number:
(to 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 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 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
height.
FIow 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
roblems.
Weeds are present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
.mil C F1 D
Form SW401-Sand FilterO&M-Rev.4 2009Sept17 UC T 0 7 2011 Page 1 of 3

BMP element:
Potential roblem:
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 I-ilter O&M-Rev.4 2009Sept17 i OCT 0 7 2011 Page 2 of 3
S' Y:

Permit Number:
(to be provided by DJVQ)
1 acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior
to any changes to the system or responsible party.
Project name:Ordnance Loading Area Additi
BMP drainage area number:
Print name:Carl H. Baker Jr.
"Fitle:Deputy Publics Works Officer
Address:1005 Michael Road
Phone:
Signati
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
1. . a Notary Public for the State of
/JC , County of �i»z. "a do hereby certify that
:1-1 personally appeared before me this day of
ocl , -�// , and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
ALICE A. BONNETTE
Notary Public
Onslow County
State of North Carolinao�/�
M Commlaslon Ex Irea
SEAL
My commission expires �1 A/l /1--
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
CT<J: 1. ED
OCT 0 7 2011
3Y:
Page 3 of 3

Permit Number:
(to be provided by DWQ)
OF W A 7g9
PIMA
I Y
� y
NCDENR 4 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 III) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 910-451-3238
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (RD)
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 (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 (hftrater)
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 (dsHWT)
if this is a closed, underground closed sand filter; The clearance between
the surface of the sand fitter and the bottom of the roof of the underground
structure (ds,,,)
Form SW401-Sand Filter-Rev,52009Sep117
November 3, 2011
C
90,566,00 ftz OK
78,927,00 ftz
87.1 % %
1.50 in
3.50 in
0.15 inihr
1.74 ft3lsec
5,48 ft3lsec
3.74 ft3lsec
9,400.00 ft3
7,050.00 ft3
7,251.00 ft3
17.1 ft amsl
16.35 ft amsl
2.16 ft
1.0a ft
0.83 (unitless)
YorN
ft amsl
ft amsl
Y YorN
14.00 ft amsl
11.69 ft amsl
-2.30
OK
OK
OK
NOV 1 4 2011
Paris I and It. Project Design Summary, Page 1 of 2

Permit Number:
(do be provided by DWQJ
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 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 (ROW1?
What 4s the width of the sedimentation chamberlforebay (NIX
What is the depth of sand over the outlet pipe (dpipe)?
Form SW401-Sand Filter-Rev.5 2009Sep117
2,263.00 ft' OK. Meets minimum, but may need to be increased to
4.25 ft
1,094.00 ft2
OK. Meets minimum, but may need to be increased to
14,19 ft arnsl
12.69 ft amsl
1.50 ft
3.50 (ft/day)
6.00 in
0.50 Osec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
It
YorN
Y Y or N
OK
YorN
YorN
YorN
7.00 ft
OK
1.00 ft
OK
NOV
Parts I and 11. Project Design Summary, Page 2 of 2

Permit No. -
(to be provided by DWQ)
IH: 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 ar agent,
the agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
-.t& C1001 1- Pians (i' - 50' or larger) of the entire site with labeled drainage area boundaries
Cs506-CS51 I _ System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
^Cd,_S- CS506-Cs511
Coll
'ate
CS506-CS511
Attached
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 mrlariec of rlrninnno mcomonf
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 pubiic 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 fiEter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
Depth of sand titer media,
Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
SNW i elevation,
Outlet pipe, and
Clearance from the surface of the sand filter to the bettom of the roof of the underground structure (if
annlicnhle).
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.
nttached 5. Supporting calculations (including drainage calculations)
Attached .6, Signed and notarized operation and maintenance (O&M) agreement
N/A 7. A copy of the deed restrictions (if required),
Form SW401-Sand Filter-Rev.5 2009Sept17
i
RECEIVED
OCT 0 7 Z011
BY;
Part III, Page 1 of 1

Permit Number:
(10 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:
Potentialproblem:
How 1 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
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
roblems.
Weeds are present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
-- C EI`,TED
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 OCT 0 7 2011 Page I of 3

BMP element:
Potentialproblem:
How 1 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.
RFr WED
Form SW401-Sand Filter O&M-Rev.4 2009Sept 17 O C T 0 7 2911 Page 2 of 3

Permit Number:
(ro be provided 6y 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:Ordnance Loading Area Addition
BLIP drainage area number:
Print name:Carl H. Baker Jr.
Title: Deputy Publics Works Officer
Address:1005 Michael Road
Phone
Signat
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
I. - . 7� , a Notary Public for the State of
County of do hereby certify that
�.
personally appeared before me this 61 day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements
Witness my hand and official seal,
ALICE A. BONNETTE
Notary Public
Onaiow County
State of North Carolina
Commission Ex ire&2L�L�1
SEAL
My commission expires ;21 0- —
?rCEIVED
OCT 0 7 2011
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17
Page 3 of 3

Permit Number:
(to be provided by DWO)
AG'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 111) and the I&M Agreement (Section IV)
L v 6 H
O -c
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition _
Contact name David Towler
Phone number 910-451-3238
Date November 3.2011
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
Drainage area (An)
Impervious area
% Impervious (IA)
Design rainfall depth (RD)
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 (hMaxFlter)
Average head on the sedimentation basin and sand fiiter (hA)
Runoff Coefficient (Rv)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filler elevation
Clearance (dsHWT)
Closedipre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsH,,)
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 (dsuace)
Form SW401-Sand Filter-Rev.5 2009Sept17
67,842.00 ft2 OK
57,521.00 ftz
84.8% %
1.50 in
350 in
0.15 inihr
1.31 ft3isec
4.11 Wisec
2.80 ft3isec
6,880,00 ft3
5,160.00 ft3
5,569.00 ft3
18.24 ft amsl
17.44 fl amsl
2.00 ft
1.00 ft
0.81 (unitless)
YorN
ft amsl
ft amsl
Y YorN
14.50 ft amsl
12.94 ft amsl
-1.50
OK
OK
OK
NOV 1 4 Z011
Pans I and 14. Project FsiFn Summary, Page 1 of 2

Permit Number.
(to be provided by DWO)
Sedimentation Basin
Surface area of sedimentation basin (AS)
Sedimentation 5asinlchamber 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 filler (k)
Outlet diameter
Outlet discharge/flowrate
Time to drain the sand filler (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 (50fl 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 oubiic Right of Way (ROW)?
What is the width of the sedimentation chamberiforebay (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
Form SW401-Sand Filter-Rev.52009Sept17
1,878.00 ft2 OK. Meets minimum, but may need to be increased to
4.25 ft
906.00 ftz
OK. Meets minimum, but may need to be increased to
15.44 It amsl
13.94 ft amsl
1.50 ft
3.50 (fUday)
6.00 in
0.50 ft3Isec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
Y Y or N
OK
YorN
ft
YorN
Y Y or N OK
YorN
YorN
YorN
7.00 ft OK
1.00 ft OK
LOV 1 4 2011
Parts I and 11. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DINO)
_ 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 fo04ving 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.
CAI" C1111 1. Plans (1' - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS52 I . 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 inr{ariac of r{rainano aacomon{
CS506-CS511 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.
CS506-CSS r 1 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
annlicahle).
cl,?/l Auactied 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.
Cjj�/i Attached 5. Supporting calculations (including drainage calculations)
s{i Attached 6. Signed and notarized operation and maintenance (O&M) agreement
N/A 7. A copy of the deed restrictions (if required).
Form 5W401-Sand Filter-Rev.5 2009Sept17
RECEIVED
OCT 0 7 2011
BY:
Part III, Page 1 of 1

Permit Number: S1'v�e-Oe';79��
(to be provided by DtVQ)
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:
Potentialproblem:
How I will remediate theproblem:
Entire BMP
Trash/debris is Rresent.
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.
r_ZECEIVED
Form SW40I-Sand Filter O&M-Rev.4 2009Septl 7 Page 1 of 3
OCT 0 7 2011
Y:

BMP element:
Potentialproblem:
How 1 will remediate the,problem:
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 dama ed
Re 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.
. ECEIVED
OCT 4 7 Z011
Form SW401-Sand FilterO&M-Rev.4 2009Septl7 Page 2 of 3
BY:

Permit Number: 5i�j0 o9dg4-) /Ycc(
(to be provided by DdVQ)
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:Ordnance Loading Area Addition
BMP drainage area number.
Print name:Carl I-l. Baker Jr.
Title:De utv Publics Works Officer
Address:1005 Michael Road
Phone:
Signatt
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been
sold and a resident of the subdivision has been named the president.
I, '� f CL_ N8 -V 1S , a Notary Public for the State of
County of Q!)S(oy") , do hereby certify that
personally appeared before me this day of
Cr_JqA3e_C D-01( , and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,Ad4_/-�
SYLVIA NORRIS
NOTARY PUI31 IC
ONSLOW COUNTY,
MY COMMISSION EXPIRES
SEAL
My commission expires_ _3 kn�Df
Form SW401-Sand Filter O&M-Rev.4 2009Sept17
RFIC RIT. TED
OCT 0 7 Z011
I
Page 3 of 3

r
1
Permit Number:
(to be provided by DWQ)
,QF wAT�r9
MAG"A
MAI _C1
r
NCDENR
STORMW_ ATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be fifted 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 NI) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name
CALA Ordnance Loading Area Addition
Contact name
David Towler
Phone number
910451-3238
Date
November 3, 2011
Drainage area number
E
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
23,138.00 ft2 OK
Impervious area
13,418.00 ft2
% Impervious (IA)
58.0% %
Design rainfall depth (Rn)
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 (WOVAdi)
Volume contained in the sedimentation basin and on top of the sand filter
Top of sand filtedgfate elevation
Weir elevation (between chambers)
Maximum head on the sedimentation basin and sand filter (hMaxrmer)
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 (dsHm)
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
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
structure (dspxe)
Form SW401-Sand Filter-Rev.5 2009Sept17
;'bu In
0.15 in1hr
0.45 ft3isec
1.10 ft/sec
0.65 ft3isec
1,648.00 ft3
1,236.00 ft3
1,256.00 ft'
19.45 ft amsl
18.95 ft amsl
2.00 ft
1.00 ft
0.57 (unilless)
N YorN
ft amsl
ft amsl
Y YorN
10.70 ft amsl
14.45 ft amsl
180
ft
OK
OK
OK
NOV 1 4 Z011
Parts I and IL Project Design Summary. Page 1 of 2

Permit Number:
(to be provided by DWO)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimertation 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 d isch arge/fiow rate
Time to drain the sand filler (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 -fine 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 (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
322.00 ftZ OK. Meets minimum, but may need to be increased to
4.00 ft
306.00 ffz
OK. Meets minimum, but may -need to be increased to
16.95 ft amsl
15.45 ft amsl
1.50 ft
3.50 (ft/day)
6.00 in
0.50 ft'isec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y YorN
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y YorN OK
YorN
YorN
YorN
3.00 ft OK
1.00 ft OK
Jcrc'
Nov 14 2011
1BY:
Form SW401-Sand Filter-Rev.5 2009Septi 7 Parts I and 11. Project Design Summary, Page 2 or 2

Permit No.
(to be provided by DWQ)
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.
-(_ C/`i Csoal' 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
Cs50c-CS51 1 - 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
Rnnnriariac of r1minnna ❑acomnni
26 CS506-CS511 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.
ICE Cs506-CS511 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 biter 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
. annlirahlel.
CO/I 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.
CaA Attached 5. Supporting calculations (including drainage calculations)
Ca i74 Attached fi. Signed and notarized operation and maintenance (08M) agreement
1v/n 7. A copy of the deed restrictions (if required),
Form SW401-Sand Filter-Rev.5 2009Sepli7
RECEIVEYY
OCT 0 7 2011
BY:
Part Ill. Page 1 of i

Permit Number:
(to be provided by DWQ)
Drainage Area Number: e
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:
Howl 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 time
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.
DECEIVED
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3
OCT o 7 2011
BY:

BMP element:
Potentialproblem:
How Iwill 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 ex ert.
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.
a - .F`CEIVED
OCT 0 7 2011
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 i Page 2 Of 3
i

Permit Number: 5w 9 09" ` T 5
(10 be provided by D{VQ)
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 -Ordnance Loading Area Addition
BAIP drainaf e area number: E
Print name:Carl H. Baker Jr.
Title:Deputy Publics Works Officer
Address:1005 Michael Road
Phone:
S ignatt
l�I�L�i��siJ•
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.
I. �y 1v 1 6-- �O ['1 -1 3 _ _ _ a Notary Public for the State of
no:Rna lr�h_L, County of {r� _ pW do hereby certify that
CKP�� personally appeared before me this day of
do 2�f o`Zi�i l , and acknowledge the due executio of the forgoing sand filter
� A
maintenance requirements. Witness my hand and official seal.
91:11dX3 NOISSIriIWpo M
�1Nn66MO?SNO
O119nd AUVION
SINHON VIAIAS
SEAL
My commission expires .I� _ C�2. 1 l5
Form SW401-Sand Filter 0R:M-Rev.4 2009Sept17 OCT 0 7 2011
Page 3 of 3

" � G
Y6'ys'%i1J4 i,. Yw r

IJ
Permit Number.
(to be provided by DWO)
MA vW A r�R
KIVAJI
r
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 111) and the ISM Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Tower
Phone number 910-451-3238
Date November 3, 2011
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
E-1
Drainage area (Ac)
12,394.00 ft' OK
Impervious area
6,768.00 ftz
% Impervious (IA)
546% %
Design rainfall depth (Rc)
1.50 in
Peak Flow Calculations
1-yr, 24-hr runoff depth
3.50 in
1-yr, 24-hr intensity
0.15 inihr
Pre -development 1-yr, 24-hrrunoff
0.24 ft3lsec
Post -development 1-yr, 24-hr runoff
0.57 ft3lsec
Pre/Post 1-yr, 24-hr peak control
0.33 ft3lsec
Storage Volume
Design volume (WQV)
838.00 ft,
Adjusted water quality volume (WQVAdi)
628.50 ft3
Volume contained in the sedimentation basin and on top of the sand filter
OK
1,048.00 ft'
Top of sand filterlgrate elevation
19,09 It amsl
Weir elevation (between chambers)
18.59 it amsl
Maximum head on the sedimentation basin and sand filter (hftFilter)
2.00 ft OK
Average head on the sedimentation basin and sand filter (hA)
1.00 ft OK
Runoff Coefficient (Rv)
0.54 (unitless)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
ft amsl
Clearance (dsHyyr)
Closed/pre-cast sand filter?
Y Y or N
SHWT elevation
15.00 ft amsl
Bottom of the sand filter elevation
14.09 ft amsl
Clearance (dsH,,vr)
4.59
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 (dso,,,e)
NOV 1 4 Z011
Form SW401•Sand Filter-Rev.5 2009Sept17 Parts t and II. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by OWQ)
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 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 Riqht of Way (ROW)?
What is the width of the sedimentation chamberlforebay (Wsed)?
What is the depth of sand over the outlet pipe (dpipe)?
Form SW401-Sand Filter-Rev.5 2009Sept17
322.00 ftz OK. Meets minimum, but may need to be increased to
4.00 ft
306.00 ft2
OK. Meets minimum, but may need to be increased to
16.59 ft amsl
15.09 ft amsl
1.50 ft
3,50 (ft/day)
6,00 in
0.50 ftlisec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N OK
YorN
YorN
YorN
3.00 ft OK
1.00 ft OK
NOV 1 4 Z011
Parts I and II, Project Design Summary, Page 2 of 2

Permit No.
(Io be provided by D141Q)
11I. 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.
0 Cso01 1. Plans (1' - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS511 - 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,
r-
Off -site drainage (if applicable), and
_ Rni inrinriAc of rlrninnna o�eamant
{rr;. CS506-CS511 2, Plan details (V = 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.
rr, CS506-CS511 3. Section view of the sand fikter (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
annlirahlel.
nttachcd 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.
Calms naaclicd 5. Supporting calculations (including drainage calculations)
r / Auachud 5. Signed and notarized operation and maintenance (0&M) agreement
N/A 7. A copy of the deed restrictions (if required).
Form SWQ1-Sand Filler-Rev.5 2009Seplt7
E D
OCT 07 2011
JBY.
Part 111, Page 1 of 1

Permit Number;
(to be pprCroerded by DJVQ)
G Drainage Area Number: I -
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 Ioad 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 rernediate 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 Iime
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 2009Septl 7
��,F-'CFJVED
OCT 0 7 2011
l
BY
Page I of 3

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
Re pair or rep 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.
OCT 0 7 2011
Form SW401-Sand Filter O&M-Rev.4 2009Se t17 l3Y: Page 2 of 3
P g

Permit Number: 5y 06?0 t f )/A V
(tu be provided by DGVQ)
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.
Projectname:Ordnance Loading Area Addid
BAP drainage area number. E 1
Print name:Carl H. Baker Jr.
'ritle.Deputy Publics Works Officer
Address:1005 Michaei Road
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.
1, J l c� �oi, f I S , a Notary Public for the State of
Oe'_V ct.C,Al County of() n 0 uJ , do hereby certify that
C-1310 �A . aoyk personally appeared before me this � lday of
0,-ZOO , and acknowledge the due executi of the forgoing sand filter
maintenance requirements. Witness my hand and official seal, C�"
SYLVIA NORRIS
NOTARY PUBLIC
ONSLOW COUNTY N
MY COMMISSION EXPIRES' S IS
SEAL
My commission expires 3 9!" OI S
R-ECEIVED
Form SW40I-Sand Filter O&M-Rev.4 2009Sept17 OCT 0 7 2011
4
BY:
Page 3 of 3

Permit Number:
(to be provided by DWQ)
o� �aTfiR
AL �� OG
r
? y
NCDENR P
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must 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 111) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 910-451-3238
Date November 3, 2011
Drainage area number E-2
p. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
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
12,543.00 ft2 OK
6,804.00 ft2
54.2% %
1.50 in
3.50 in
0.15 inlhr
0.24 ft3lsec
0.56 ft'/sec
0.32 ft3/sec
Design volume (WQV)
847.00 ft3
Adjusted water quality volume (WQVAdJ
635.25 ft3
Volume contained in the sedimentation basin and on top of the sand filter
OK
1,256.00 ft3
Top of sand filterlgrate elevation
18.73 ft amsl
Weir elevation (between chambers)
18.23 ft amsl
Maximum head on the sedimentation basin and sand Mter (hMa alter)
2.00 ft OK
Average head on the sedimentation basin and sand filter N)
1.00 ft OK
Runoff Coefficient (Rv)
0.54 (unitless)
Type of Sand Filter
Open sand filter?
N Y or N
SHWT elevation
ft amsl
Bottom of the sand filter elevation
ft amsl
Clearance (dstiwr)
Closed/pre-cast sand filter?
Y Y or N
SHWT elevation
14.00 ft amsl
Bottom of the sand filter elevation
13.73 ft amsl
Clearance (dsHm)
-0.30
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 (dsoace)
NOV 14 2011
Y
Form SW 401-Sand Filter-Rev.5 2009SeptV 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 (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 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 (WSIX
What is the depth of sand over the outlet pipe (dpipe)?
Form SW401-Sand Filter-Rev.52009Sept17
322.00 ftz OK. Meets minimum, but may need to be increased to
4.00 ft
306.00 ft2 OK. Meets minimum, but may need to be increased to
16.23 ft amsl
14.73 ft amsi
1.50 ft
3.50 (ftiday)
6.00 in
0.50 ft3lsec
40.00 hours OK, Submit drainage calculations.
1.67 days
Y YorN OK,
N Y or N Insufficient flow splitter.
YorN
ft
YorN
Y Y or N OK
YorN
YorN
YorN
3.00 ft OK
1.00 ft OK
F_�NOV 1 4 2011
IS'( :
Parts I and M. Project Design Summary, Page 2 of 2

4
Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Pleas e 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.
(. C� csool 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-Cs511 _ 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 inrlarioc of rlrainano cacpmanf
CS506-CS511 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 (i€ 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,
trig CS506-CS511 3. Section view of the sand filter (l" = 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
annlicahlel.
Auaclwd 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 sail maps are not an acceptable source of soils information,
_LaA Attaclud 5. Supporting calculations {including drainage calculations)
rrr_f Attached 6. Signed and notarized operation and maintenance (00) agreement
N/A 7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-2ev.5 2009Sept17
ECEIVED
OCT 0 7 2011
BY:
Part III, Page 1 of 1

L
Permit Number.
(to be provided by Dlt'Q)
Drainage Area Number: -G Z'
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 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
hei ht.
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 2009Sept17
3
OCT 4 7 2011
BY:
Page l of 3

BMP element:
Potential robiem:
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.
RECEIVED
Fonn SW40I-Sand Filter O&M-Rev.4 2009Sept17 OCT 0 7 2011 Page t of')
BY:

Permit Number: sk) o 9d c1`T,5 %%GC
(to be provided by fJWQ)
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.
Projectname:Ordnance Loading Area Addition
BAPdrarnna area number:E2
Print name:Carl H. Baker Jr.
Title:Deputy Publics Works Officer ^
Address:1005 Michael Road
Phone
Signat
Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been
sold and a resident of the subdivision has been named the president.
I, V Ou t` (" S a Notary Public for the State of
County of Q 44 0"" do hereby certify that
C6 (( Q r t:�- f �(`. personally appeared before me this LA
� day of
Dc4oLt,r D I ( , and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,
MOM NORRIS
NOTARY PUBLIC
ONSLOW COUNTY, N
MY COMMISSION EXPIRES
SEAL
My commission expires 'aw—S
61
RECEIVED
OCT 0 7 2011
Form SW401-Sand Filter0&M-RevA 2009Sept17
BY:
Page 3 of 3

Permit Number:
(to be provided by DWQ)
_ qF w a rFq
v
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 till out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 910-451-3238
Date
Drainage area number
II. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
Impervious (IA)
Design rainfall depth (RD)
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 (WQVAdJ
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 (hMaxFiltJ
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
Ciearance (dsHwr)
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 (dsaace)
November 3, 2011
E-3
12,947.00 ft2 OK
7,191,00 ftz
55.5% %
1.50 in
3.50 in
0.15 inlhr
0.25 ' ft3lsec
0.59 ft3lsec
0.34 ft'isec
889.00 ft3
666.75 ft3 OK
1,256,00 ft3
18.55 ft amsl
18.05 ft amsl
2.00 ft OK
1.00 h OK
0.55 (unitless)
YorN
ft amsl
ft amsl
Y Y or N
14.50 ft amsl
13.55 ft amsl
3.91
ENO4 Z011
Form SW40I-Sand Filter-Rev.5 2009Sept17 Parts I and II. Project Design Summary, Page 1 of 2

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 votume 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)?
Form SW401-Sand Filter-Rev.5 2009Sep117
322.00 ftz OK. Meets minimum, but may need to be increased to
4.00 ft
306.00 ft2
OK. Meets minimum, but may need to be increased to
16.05 ft amsl
14.55 ft amsl
1.50 ft
3.50 (ft/day)
6.00 in
0,50 ft3lsec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
YorN
YorN
YorN
3.00 ft
OK
1.00 ft
OK
LNOV 1 4 2011
Parts I and II. Project Design Summary, Page 2 of 2

Permit No.
(10 be provided by DWQ)
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.
C1 csool 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
cssab cis 1 1 - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
CS506-CS511
ra,g cssob-cis I l
A' Lil Attucficd
a/ Attached
cd r1 Attached
N/A
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
_ Rn,inrinr;oc of rlraini�nn oacomant
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 drainape 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
ar)nlicahlel.
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)
6. Signed and notarized operation and maintenance (0&M) agreement
7, A copy of the deed restrictions (if required).
! .RECEIVED
OCT o 7 2011
13y:
Form SW401-Sand Filter-Rev.5 2009Septl7
Part 111, Page 1 of 1

Permit Number:
(to beprovidedby DWQ)
Drainage Area Number: ii
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 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
roblems.
Weeds are present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW40 [-Sand Filter O&M-Rev.4 2009Septl7 OCT 0 7 2011 Page I of 3
BY:—

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.
C EIVED
Form OCT Q 7 2011 SW40I-Sand Filter O&M-Rev.4 2009Sept17 Page 2 Of 3
3Y:

Permit Number::t1 9 6 ,?0 q¢S )qc.)c .
(to be provided by DWQ)
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.
Projectname:Ordnance Loading Area Addition
BMP drainage area number.E3
Print name:Carl H. Baker Jr.
Title:Deputy Publics Works Officer
Address:] 005 Michael Road
Phone
Signat
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.
NOCel S rrnn . a Notary Public for the State of
County of V h 516W do hereby certify that
Lp,v'ox personally appeared before me this (D day of
loll , and acknowledge the due executiV of the forgoing sand filter
maintenance requirements. Witness my hand and official seal. Ajxz��j
E
LVIA NORRIS
TARY PUBLICOW COUNTY, I^S10N EY,PiRES f his,
SEAL
My commission expires 3 0"
ECEIVED
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 OCT 0 7 ZQ11 Page 3 of 3

Permit Number:
(to be provided by DWQ)
OF tN A r�R
C1 OG
NOENR 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 Ill) and the I&M Agreement (Section IV)
I. PROJECT INFORMATION
Project name GALA Ordnance Loading Area Addition
Contact name David Towler
Phone number 91OA51-3238
Date November 3.2011
Drainage area number
IL DESIGN INFORMATION
Site Characteristics
Drainage area (Ao)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
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 (WOVAdi)
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 (hMaxFilter)
Average head on the sedimentation basin and sand filler (hA)
Runoff Coefficient (Rv)
Type of Sand Fitter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsHwT)
Closedlpre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dSH,M)
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,,J
E-4
13,422.00 ft2 OK
7,306.00 ff2
54.4% %
1,50 in
3.50 in
0.15 inihr
0.26 ft3Isec
0,59 ft3lsec
0.33 ft3isec
9Q6.i?0 ft3
679,50 ft3
1,256.00 ft3
18.41 ft amsl
17.91 It amsl
2.00 ft
1.00 It
0.54 (unittess)
YorN
It amsl
ft amsf
Y YorN
15,50 ft amsl
13.41 ft amsl
3,91
OK
OK
OK
FNOV 4 2011
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts I and II, 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 (AF)
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 filler (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 $A waters)?
4f not a closed bottom, is BMP located at least 10011 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)?
Form SW401-Sand Filter-Rev.52009Septl7
322.00 ft2 OK. Meets minimum, but may need to be increased to
4.00 ft
306.00 ft2
OK. Meets minimum, but may need to be'mcreased to
15.91 ft amsl
14.41 ft amsl
1.50 ft
3.50 (fYday)
6.00 in
0.50 ft315ec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y Y or N
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
YorN
YorN
YorN
3.00 ft
OK
1.00 ft
OK
-i .... �.� '�� -_may ✓ ..._':�.-
NOV 1 4 Z011
n-,r.
Parts I and 11. Projeci f)esign Summary; Page 2,of.2

Permit No.
(to be provided by DK1Q)
III: REQUIRED ITEMS CHECKLIST­i
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 approva[ 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.
CS901 1. Plans (V - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-0551 I _ System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
, chamber,
.,D-S CS506-CS511
ta4n CS506-CS511
f 411 Attached
Ca/7 nttachcd
Ca /J Attached
NIA
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
Rnnnrinricc of rlrninann aacornonf
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 drainaqe easement.
3. Secfion 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
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 DVVQ, by completing & submitting the sails
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 (O&M) agreement
7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.5 2009Sep117
7RF FTVED0 7 Z011
BY:
Part III, Page 1 of 1

Permit Number:
(it) be provided by D6VQ
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:
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.
RECEIVED
Form SW401-Sand Filter 0&Nl-Rev.4 2009Septl7 OCT 0 7 Z011 Page 1 of 3
BY:

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
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 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 S W401-Sand Filter O&M-Rev.4 2009Sept17 1 OCT 0 7 2011 1 Page 2 of 3

Permit Number: 5(A) � 0 IFO2�'S
(m be provided by DWQ)
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 -Ordnance Loading Area Addition
BMP drainage area number:E4
Print name:Carl H. Baker Jr.
Title:DcputyPublics. Works Officer
Address:1005 Michael Road
Phone
Signat
Date:
I 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.
I, s y j V ( S , a Notary Public for the State of
1 `i��� o1 t n [L} , County of 0 f\� Oyl _ do hereby certify that
personally appeared before me this to day of
CSC- 0\0 , a"d[ j , and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,Aet`�
SYLVIA NORRIS
NOTARY PUBLIC
ONSI COUNTY,
MY COMMISSION EXPIRES '� DI5
SEAL
My commission expires J©� 5
'R, FCEIVED
Form SW401-Sand FilterO&M-Rev.4 2009Sept17 OCT 0 7 2011 Page 3 of 3
Y:

Permit Number:
(to be provided by OWQ)
Aff'ive,Av
O' G
r
NCDENR i
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 CALA Ordnance Loading Area Addition
Contact name David Towler
Phone number
Date
Drainage area number
ill. DESIGN INFORMATION
Site Characteristics
Drainage area (AD)
Impervious area
% Impervious (IA)
Design rainfall depth (Ro)
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 (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 (hMaxFder)
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 (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
structure (dsa,e)
910-451-3238
November 3, 2011
48,731.00 ft2 OK
18,475.00 ft2
37.9% %
1.50 in
3.50 in
0.15 inlhr
0.94 ft3lsec
1.81 ft3lsec
0.87 ft3lsec
2,378.00 ft3
1,783.50 ft3
1,890,00 ft,OK
18.14 ft amsl
17.39 ft amsl
2.00 ft OK
1.00 ft OK
0.39 (unitless)
YorN
ft amsl
ft amsl
Y YorN
15.00 ft amsl
12.89 ft amsl
-2.20
Nov 1 4 2011
Bair.
Form SW401-Sand Filter-Rev.5 2009Sept17 Parts ! and It. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Sedimentation Basin
Surface area of gedimentation basin (As)
Sedimentation basinlchamber depth
Sand Filter
Surface area of sand fitter (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 voiume 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 (50111 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's the width of the sedimentation chamberlforebay (WSIX
What is the depth of sand over the outlet pipe (dpipe)?
482.00 ftz OK. Meets minimum, but may need to be increased to
4.25 ft
463.00 ftz OK. Meets minimum, but may need to be increased to
15.39 ft amsl
13.89 ft amsl
1.50 ft
3.50 (ftlday)
6.00 in
0.50 ft3lsec
40.00 hours
OK. Submit drainage calculations.
1.67 days
Y YorN
OK
N Y or N
Insufficient flow splitter.
YorN
ft
YorN
Y Y or N
OK
YorN
YorN
YorN
3.50 ft
OK
1.00 ft
OK
ENOV 4 Z011
Form SW401-Sand Filter-Rev.5 2009Sept17 ' Parts I and 11. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by I)WQ)
III: REQUIRED ITEMS CHECKLIST ; .a.
Please indicate the page or plan sheet numbers where the supporting decument3Gon 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.
Csool 1, Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
CS506-CS51 1 _ 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 eight of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Pruinr{wiac r)f rlrainana aacAmant
��pr3 CS506-CS51 1 2. Plan details (1" = 30' or larger) for the sand filter showing:
- System dimensions (4ength, width, and depth) for both the sedimentation chamber and the filler
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.
. CS506-CS511 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 fitter 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
amnticnhlel.
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 DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
C� Atrnched 5. Supporting calculations (including drainage calculations)
Cer/J Attached 6. Signed and notarized operation and maintenance (O&M) agreement
NIA 7. A copy of the deed restrictions (if required).
Form SW441-Sand Filter-Rev.5 2009Sept17
RECEIVED
OCT 0 7 2011
BY:
Part III, Page 1 of 1

Permit Number: �D ?��
(to be provided by DWQ)
Drainage Area Number:
Sand Filter Operation and Maintenance Agreement
1 wilI 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 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.
ossible.
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 ravin .
`►��:� CE�VED
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 OCT 0 7 2011 page I of 3
;f3Y:

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.
RFCEjVED
OCT 0
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 O�, Page 2 of 3
BY:

I
Permit Number:
(to be provided by D{VQ)
I acknowledge and agree by my signature below that I 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:Ordnance Loading
Area Addition
BMP drainage area number.
Print name:Carl H. Baker Jr.
Title:Deputy Publics Works Officer
Address:1005 Michael Road
Phone:
S ignati
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
vtct-,. County of Q d W do hereby certify that .4 t"
personally appeared before me this (0 day of
©b 0 l , and acknowledge the due execution of the forgoing sand filter,
i
maintenance requirements. Witness my hand and official seal,
SYLVIA NORRIS
NOTARY PUBLIC
ONSLOW COUNTY,
MYCOMMISSION EXPIRES_
SEAL
My commission expires J0
CEIVED
Form SW401-Sand Filter O&M-Rev.4 2009Septl7 OCT 4 7 2011 Page 3 of 3
BY:

Central Files: APS _ SWP
9/10/2020
Permit Number SW808094
Permit Tracking Slip
Program Category
Status Project Type
State SW
Active Renewal with major mod
Permit Type
Version Permit Classification
Stale Stormwater
2.00 Individual
Primary Reviewer
kellie.norris
Coastal SWRule
Coastal Stormwater - 2008
Permitted Flow
Facility
Permit Contact Affiliation
Facility Name
Major/Minor Region
GALA Ordnance loading Area Addition
Minor Wilmington
Location Address
County
Perimeter St
Onslow
Facility Contact Affiliation
Camp Lejeune NC 28542
Owner
Owner Name
Owner Type
Commanding Officer Marine Corps Base Camp Lejeune
Government - Federal
Owner Affiliation
Robert A. Lowder
Director Division Enviromental G-F Managemei
Post Ln Bujlding 12 Rm 244
Dates/Events
Camp Lejeune NC 28542
Scheduled
Orig Issue App Received Draft Initiated Issuance
Public Notice Issue Effective Expiration
11/6/2008 6/23/2020
9/4/2020 9/4/2020 12/20/2026
Regulated Activities
Requested /Received Events
State Stormwater - HD - Sand filters
Outfall
Waterbody Name
Streamindex Number Current Class Subbasin