SW7080717_HISTORICAL FILE_20170404

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW 717
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

DEMLR USE ONLY
Date Received
Fee Paid
Permit Number
-
S
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 Plan
❑ Other WQ M mt Plan: K
State of North Carolina ` 7) 5;` J
Department of Environment and Natural Resources i �'- "iD'L" u *r ''"
Division of Energy, Mineral and Land Resources
APR - 4 2017
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original p
I. GENERAL INFORMATION`' �I+
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Existing Permit - Harvey Point DTA - FBI Site Expansion / Overall Low Density Commercial Development
with Areas of High Density. New Site Plan - Instrumentation Test Range Design Range B
2. Location of Project (street address):
- City:Hertford County:Perquimans County Zip:27944-8470
3. Directions to project (from nearest major intersection):
From Route 17 turn on Harvey Point Road proceed 10.7 miles to project entrance.
4. Latitude:36° 05' 41.76" N Longitude:76* 18' 53.34" W of the main entrance to the project.
it. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ❑New ®Modification ❑ Renewal w/ Modification'
'Re MOM ruith ruodiflcations also requires S WU-102 - Reoerual Application Form
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW7080717MOD , its issue date (if known)lune 2, 2010 and the status of
construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
®Low Density ❑High Density []Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from
DEMLR requesting a state stormwater management permit application, list the stormwater project number,
if assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major ❑Sedimentation/Erosion Control:
❑NPDES Industrial Stormwater 0404/401 Permit: Proposed Impacts
ac of Disturbed Area
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
5. Is the project located within 5 miles of a public airport? ®No ❑Yes
If yes, see S.L. 2012-200, Part VI: httl2://120rtai.ncdenr.org/web/Ir/rules-and-regulations
Form SWU-101 Version Oct. 31, 2013 Page I of 6

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the oroiect):
Applicant/Organization: Harvey Point Defense Testing Agency
Signing Official & Title:Russell L. Waters, Director
b.Contact information for person listed in item la above:
Street Address:2835 Harvey Point Road
City:Hertford State:NC Zip:27944
Mailing Address (if applicable):
City: State:
Phone: [phone] Fax:
Finail:[e-mail]
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b. Contact information for person listed in item 2a above:
Street Address:
City: State: Zip:
Mailing Address (i applicable):
City: State: Zip:
Phone: ( 1 Fax: ( I
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/
Signing Official &
b. Contact information for person listed in item 3a above:
Mailing Address:
Phone:
State:
Fax:
4. Local jurisdiction for building permits: Perquimans County
Point of Contact:Virgil Parrish Phone #: [phone]
Form SWU-101 Version Oct. 31, 2013 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater will be conveyed via vegetated conveyances including swales, ditches and culverts.
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:
It. If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Perquimans River River basin.
4. Total Property Area: 85.5 acres 5. Total Coastal Wetlands Area: acres
6. Total Surface Water Area: acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area*:85.5 acres
Total project area shall be calculated to exclude the following the norrual pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Nan -coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 24
9. How many drainage areas does the project have?7 (For high densihili, count 1 for each proposed engineered
stor neater BMP. For low density and other projects, use 1 for tine whole propertlit 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 1
Drainage Area
Drainage Area
Drainage Area _
Receiving Stream Name
Perquimans
River /
Pas uotank
Stream Class *
'SB"
Stream Index Number *
30 - 6 - (7)
Total Drainage Area (sf)
3,724,380
g.37Sa <
On -site Drainage Area (sf)
3,724,380
Off -site Drainage Area (sO
Proposed Impervious Area** (so
893,850
2 0 • S
% Impervious Area** total
24
Impervious- Surface Area
Drainage Area 1
Drainage Area
Drainage Area _
Drainage Area _
On -site Buildings/Lots (so
On -site Streets (so
On -site Parking (so
On -site Sidewalks (so
Other on -site (so
7,840
(j. 18
Future(so
390,298
a 6
Off -site (so
Existing BUA*** (so
495,712
11, 36 4 �
Total (so:
893,850
o - 52- 0•�-
" Strewn Class and Index Number can be determined at: http://portal.rncdenr.org{aebfwq&s/csu/classifications
Form SWU-101 Version Oct. 31, 2013 Page 3 of

"* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
*** Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation.
Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that mail be subject to more stringent stormwater requirements as per 15A NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from htto://12ortal,ncdenr.org/web/wq/ws/su/bmp-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and
Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application
instruction sheet and BMP checklists are available from
http://portal.ncdenr.org/web/wq/ws/so/statesw/forms does. The complete application package should be
submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the
interactive online map at htt://portal.ncdenr.org/web/wq/ws/su/maps.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from htW:///oortalTncdenr.org/web/wq/ws/su/statesw/forms dots.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants NIA
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M N/A
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
hqp://www.envhelp.org/pages/oiiestopexpress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor �L _
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the —A-1-6
receiving stream drains to class SA waters within 1/z mile of the site boundary, include the 1/2
mile radius on the map.
7. Sealed, signed and dated calculations (one copy). N A
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: 16
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
Form SWU-101 Version Oct. 31, 2013 Page 4 of 6

10.
it.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
1
Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DEMLR to verify the SHWT prior
to submittal, [phone].)
� A
N t4
A copy of the most current property deed. Deed book: Page No:
For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 2H.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http://www.secretary.state.nc.Lis/Corl?orations/CSe-,irch.asi)x
VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from httlr//portal.ncdenr.org/web/ir/state-stornnvater-
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 DEMLR, and that they will be recorded prior to the sale of any lot.
Vill. 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 Engincer:Anna Lee Bamforth, PE, LS
Consulting Firm: Bamforth Engineers + Surveyors
Mailing Address:2207 Hampton Boulevard
City:Norfolk State:VA Zip:23517
Phone: (757 ) 627-7079
Email: alb «bamforth.com
Fax: [phone]
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, itent 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, itent 2a) , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item la) with (print or type name of organization listed in
Contact Information, item la) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SW U-101 Version Oct. 31, 2013 Page 5 of 6

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DEMLR Stormwater permit reverts back
to me, the property owner. As the property owner, it is my responsibility to notify DEMLR immediately and
submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater
treatment facility without a valid permit. 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 enalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Date;/ tA(
a Notary Public for the St/ate of �l0/I i7 %Mi , County of
iu944A do hereby certify that Z4lh e/l L.. `/Jokk{ 6 personally appeared
before me this A�ay of d ac nowledge t e execution of the application for
a stormwater permit. Witness my hand and official sea �SaG( 1_��� ✓�l/�l/iP
SEAL
My commission
X. APPLICANT'S CERTIFICATION
Eby C9m iLaft E)ires January 16, 2W
I, (print or type name of person listed in Contact Information, item la)
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable stormwater rules under 15A NCAC 21-1 .1000 and any other applicable state stormwater requirements.
a Notary Public for the State of County of
do hereby certify that
before me this _ day of
personally appeared
and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission
Form SWU-101 Version Oct. 31, 2013 Page 6 of 6

BAMFORTH JTORMWATER NARRATIVE
E N O I N E E E S# S U N V E Y O PS
INSTRUMENTATION TEST RANGE
HARVEY POINT TESTING AGENCY, HARVEY POINT, NC
MARCH 2O17
PROJECT LOCATION
Narrative:
This Instrumentation Test Range-B project involves a permanent infrastructure located on the
site for a hardened structure with separate communications and electrical utility buildings to
support a government -furnished mobile instrumentation, ARMAG van, blast wall and three test
sites. The site work consists of supporting the infrastructure with a slab on grade concrete
foundation with a protective blast wall as well as hardened communication and electrical utility
structures and concrete and sand filled test pits.
This is a modification to the existing stormwater management permit Harvey Point DTA — PBI
Site Expansion, SW7080717MOD. It is an overall Low Density Commercial Development with
Areas of High Density. New drawings are provided for the site. No existing drawings will be
modified. The new project title is Instrumentation Test Range Design, Range — B. Site
disturbance is less than an acre.
RE Cc Iv
APR - 4 2017

r
i
BAMFORTH STORMWATER NARRATIVE
ENGINEERS • SURVEYORS
INSTRUMENTATION TEST RANGE
HARVEY POINT TESTING AGENCY, HARVEY POINT, NC
MARCH 2O17
Existing Conditions:
The site is open and grassy with areas of erosion and little vegetation. The ground surface
generally slopes away from the center of the site to existing storm pipe, swales and roadside
ditches.
Stormwater Management:
This project is located in a coastal county and is within the low density project limits. The site
drains to Perquimans River in the Pasquotank River Basin, water classification SB.
The existing site drains by overland flow to existing storm pipes and a grass ditch along the road.
The site will continue to drain via overland flow. New swales and culverts will be provided to
maintain the existing drainage pattern. The site is within an existing low density stormwater
permit. It had been designed to follow the parameters of the existing permit and does not require
any additional stormwater management.
The approved Low Density permit area is 85.5 acres with a per lilt u on area
of 20.52 acres. The current built upon area is 11.38 acres. he future built upon area is 8.9
acres. The total new impervious area for this project is 0.18 acres, giving a new total built upon
area for the project site of 11.56 acres, less than the permitted allowable area.
Erosion and Sediment Control:
Erosion and sediment control measures include sediment fence, rock pipe outlet protection,
compost sock, inlet protection, construction entrance and temporary seeding, and permanent
sodding. These measures will be provided in accordance with the North Carolina Erosion and
Sediment Control Planning and Design Manual revised May 2013.
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BMMFORTH
E N G I N E E R S+ S U R V E Y O R S
March 31, 2017 RECEIVED
APR - 4 2017
Mr. Bill Moore %NjA RO
Environmental Engineer
Land Quality Section
943 Washington Square Mall
Washington, NC 27889
Re: Harvey Point DTA — PBI Site Expansion / Instrumentation Test Range Design, Range B,
Permit No. SW7080717MOD (16.004)
Dear Mr. Moore:
Please find attached the stormwater permit application submittal including the review fee; two
(2) copies of revised plans; one (1) copy of the narrative; original and one (1) copy of the SWU-
101 application; one (1) copy of a USGS site map; one (1) copy of a vicinity map and one (1)
copy the NRCS soils report.
This is a modification to the existing stormwater management permit Harvey Point DTA — PBI
Site Expansion, SW7080717MOD. It is an overall Low Density Commercial Development with
Areas of High Density. New drawings are provided for the site. No existing drawings will be
modified.
The existing site drains by overland flow to existing storm pipes and a grass ditch along the road.
The site will continue to drain via overland flow. New swales and culverts will be provided to
maintain the existing drainage pattern. The site is within an existing low density stormwater
permit. It had been designed to follow the parameters of the existing permit and does not require
any additional stormwater management.
Please do not hesitate to contact us should you have any questions or require additional
information.
Sincerely,
Anna Lee Bamforth, P.E., L.S., LEED AP
2207 Hampton Boulevard I Norfolk, VA 23517
F'80 ON t.757,627.7079 f.757.625.7434 I bamforth.com

DEMLRUSE ONLY
Date Received Fee Paid (express only) Permit Number
NA -
State of North Carolina
Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
RECEIV D
STORM WATER M ANAGEM ENT PERMIT PLAN REVISION APP TION FORM 4 2016
Thisform may bephota xpalfcr useasan crigina p
I. GENERALINFORM ATION Qc,'3C��'�
1. Storm water Management Permit Number. SW7080717MOD 11/� I /g
2. Project Name:
3. Permit Holder'sname (specify the nameof theoorporation, individual, etc.)
i Harvev Point DefenseTestino Aaencv
4. Print Owner/ Sgning Official's name and title (person legally responsible for permit): /
Russell L. Waters Director
BriCu� Gee- o>, s 4 JV. proJec�Mp+-
5. Mailing Address for person listed in item 2above:
2835Harvey Point Road
Phone: (252 ) 426-4221
Emai I:brian.d.lee.dv(alnai l.m i I
PLAN REVISION INFORMATION
Sate:NC Zip:27944
Fax: ( )
1. Summarize the plan revision proposed (attach additional pages if needed):
Thisisa revision to the Overall Low Density Commercial Development with Areasof High Density permit.
Thisproiect islocated at Instrumentation Test Range-B and includes Permanent infrastructure for a hardened
structurewith separate communications and electrical utility buildingsto support agovernment-furnished
mobile instrumentation ARMAG van, blast wall and threetest sites. Stework consistsof aconcreteslab on
gradewith blast wall hardened communication andelectrical utility structuresand concreteand sand filled
test pits Stormwater will beoonveyed viaexisting ditchesand new culverts
III. SUBMITTAL REQUIREM ENTS
Only complete application packageswill beaccepted and reviewed by the Division of Energy, M ineral and
Land Resources(DEMLR). Acomplete package Ind udesall oftheitemslistedbelow. Theoomplete
application package should be submitted to the DEM LR Office that issued the permit.
1. Please indicate that you have provided thefollowing required information by initialing in the space provided
next to each item.
o Original& tcopy ofthe Plan Revision Application Form
o Two (2) copies of revised plans (must berevismsof crigina' approval plan sha#(s))
If applying for Express review (only availab'ein 20aos4a' counties):
o Application fee of$500.00(madepayadetoNCDENR)
Initials
ALB
ALB
Plan Revision Form Rev. Oct. 31, 2013

VI. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 3) Russel L. Waters
certify that I have authorized these plan revisions and that the information included on this plan revision
application is, to the best o my know7?;
, correct and complete. ?
Signature: y . Date:/J J�� Ya
Plan Revision Form Rev. Oct. 31, 2013

BAMFORTH STORMWATER NARRATIVE
ENGINEERS 4 SURVEYORS
INSTRUMENTATION TEST RANGE
HARVEY POINT TESTING AGENCY, HARVEY POINT, NC
OCTOBER 2016
PROJECT LOCATION
Narrative:
This Instrumentation Test Range-B project involves a permanent infrastructure located on the site
for a hardened structure with separate communications and electrical utility buildings to support a
government -furnished mobile instrumentation, ARMAG van, blast wall and three test sites. The
site work consists of supporting the infrastructure with a slab on grade concrete foundation with a
protective blast wall as well as hardened communication and electrical utility structures and
concrete and sand filled test pits.
This is a revision to the existing stormwater management permit Harvey Point DTA — PBI Site
Expansion, SW7080717MOD. It an overall Low Density Commercial Development with Areas
of High Density. New drawings are provided for the site. No existing drawings will be modified.
The new project title is Instrumentation Test Range Design, Range —B. Site disturbance is less
than an acre.

KBAMFORTH STORMWA TER NARRATIVE
INSTRUMENTATION TEST RANGE
HARVEY POINT TESTING AGENCY, HARVEY POINT, NC
OCTOBER 2016
Existing Conditions:
The site is open and grassy with areas of erosion and little vegetation. The ground surface generally
slopes away from the center of the site to existing storm pipe, swales and roadside ditches.
Stormwater Management:
This project is located in a coastal county and is'-iihin the low density project limits. The site
drains to Perquimans River in the Pasquotank River Basin, water classification SB.
The existing site drains by overland Flow to existing storm pipes and a grass ditches along the
road. The site will continue to drain via overland flow. New swales and culverts will be
provided to maintain the existing drainage pattern. The site is within an existing low density
stormwater permit. It had been designed to follow the parameters of the existing permit and does
not require any additional stormwater management.
This is within the Low Density Permit Area. The approved permit project area is 85.1 acres with
a permitted allowable built upon area of 20.42 acres.; The current built upon area is 11.38 acres
The total new impervious are for this project is 0.18 acres,,giving a new total built upon area for
the project site of 11.56 acres, less than the permitted allowable area.
Erosion and Sediment Control:
Erosion and sediment control measures include sediment fence, rock pipe outlet protection,
compost sock, inlet protection, construction entrance and temporary seeding, and permanent
sodding. These measures will be provided in accordance with the North Carolina Erosion and
.Sediment Control Planning and Design Manual revised May 2013.
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Legend Stormwater Permit Boundary
Permitted Stormwater Boundary Q Manhole Q Check Dam PBI Expansion
Nearby Stormwater Boundaries ® Drop Inlet/Catch Basin O Discharge Permit # SW7080717
Open Drainage ® Headwall Harvey Point Defense Testing Activity
Storm Water Pipe Reservoir Hertford, North Carolina
Storn Armor Drainage Basin f'Fi CUES
MaWngSeMces

@AMFORTH
E N O I N E E N S. S U N V E V O N5
OFFICE: MAILING ADDRESS:
2207 HAMPTON BLVD. P.O. BOX 6377
NORFOLK. VA 23517 NORFOLK, VA 23508
PBONE: [phone]
FAx:[phone]
E-mail: [e-mail]
LETTER OF TRANSMITTAL
DATE: October 20, 2016
JOB: 16.004
ATTN: Stormwater
RE: Instrumentation Test Range
Design, HPDTA, Hertford,
NC
To: Washington Regional Office
943 Washington Square Mall, Washington, NC 27889
Tel: [phone]
Fax:[phone]
WE ARE SENDING YOU
THE FOLLOWING ITEMS: 21Attached ❑ Under Separate cover via
❑ Shop Drawings ❑ Prints 2 Plans
❑ Specifications ❑ Copy of Letter 21 Reports
❑ Calculations
21 Other
COPIES
DATE
NO.
DESCRIPTION
I
APPLICATION
l
NARRATIVE
2
PLANS
THESE ARE TRANSMITTED AS CHECKED BELOW:
❑ For Your Use ❑ For Approval
❑ As Requested (21 For Review & Comment
Remarks:
❑ Shop Drawing Action as Noted `� ��'EDj
RECE V
OCT 2 4 2016
WARD
COPY TO: . Anna Lee Bamforth, P.E., L.S.

cj;t
' NCDENR
North Carolina Department of Environment and Natural
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
Mr. John A. Gerig, Director
Harvey Point Defense Testing Activity
2835 Harvey Point Road
Hertford, NC 27944-8470
Dear Mr. Gerig:
June 2, 2010
W --RO
Resources
Sep Modr ��«-- -,57/ 17
Subject: Stormwater Permit No. SW7080717 Modification
Harvey Point DTA — PBI Site Expansion
Overall Low Density Commercial Development
with Areas of High Density
Perquimans County
Dee Freeman
Secretary
The Washington Regional Office received a complete Stormwater Management Permit Application for
Harvey Point DTA — PBI Site Expansion project on May 28, 2010. Staff review of the plans and
specifications has determined that the project, as proposed, will comply with the Stormwater
Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding
Permit No. SW7080717MOD, dated June 2, 2010, for the construction of the subject project.
This permit shall be effective from the date of issuance until June 2, 2020, and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and
Maintenance requirements in this permit. Failure to establish an adequate system for operation and
maintenance of the stormwater management system 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 upon written request within thirty (30) days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150E of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer
27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and
binding.
If you have any questions, or need additional information concerning this matter, please contact Scott
Vinson, or me at [phone].
Sincerely,
Al Hodge
Regional Supervisor
Surface Water Protection Section
AH/sv: K:\SAV\STORMWATER\PERMIT\SW7080717M
cc: Mike Basinger, PE - Hankins & Anderson, Inc.
Perquimans County Inspections
✓Washington Regional Office
Central Files
North Carolina Division of Water Quality Internet: vrxw.nmaterquality.org One
943 Washington Square Mall Phone. [phone] FAX: [phone] NorthCarotlna
Washington, NC 27889 FAX: [phone] An Equal OpDonunityl Affirmative Action Employer �qfura/,/

i
State Stormwater Management Systems
Permit No. SW7080717MOD
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
OVERALL LOW DENSITY COMMERCIAL DEVELOPMENT
WITH AREAS OF HIGH DENSITY
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
Harvey Point Defense Testing Activity
Harvey Point DTA, PBI Site Expansion
Perquimans County
FOR THE
construction, operation and maintenance of an overall low density commercial
development with two constructed wetlands in compliance with the provisions of
Session Law 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
Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until June 2, 2020 and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
The built -upon area percentage for the low density portion of this project must be
maintained at 24% per the requirements of Session Law 2008-211 and 15A
NCAC 2H .1000. This project is permitted for a maximum of 437,103 square feet
of BUA (for both Low Density and High Density portions of this project). (r�,�� 10
3. The stormwater systems proposed to treat the runoff generated by the
designated high density areas have been approved for the management of
stormwater runoff as described in Section 1.6 on page 3 of this permit.
4. This project will maintain a minimum 50 foot wide vegetated buffers between all
impervious areas and surface waters on new development and a minimum 30
foot wide vegetated buffer on all existing and previously permitted impervious
areas.
Page 2 of 8

state acormwaier management systems
Permit No. SW7080717MOD
5. Within the low density portions of the permitted project, the only runoff
conveyance systems allowed will be vegetated conveyances such as swales with
minimum side slopes of 3:1 (H:V) as defined in the stormwater rules and as
shown on the approved plan.
6. The following design elements have been permitted for the two constructed
wetland stormwater facilities, and must be provided in the systems at all times.
Drainage
DA #1 DA #2
a. Area, ft2:
94,960 256,132
b. Total Impervious Surfaces, ft2:
18,295 55,321
C. TSS removal efficiency:
85% 85%
d. Design Storm, inches:
1.5" 1.5"
e. Permanent Pool Elevation, FMSL:
5.50 3.50
f. Permitted Surface Area a(rPP, ft2:
6,750 7,500
g. Forebay Surface Area, ft :
1,650 1,875
h. Deep Pool Surface Area, ft2:
600 625
i. Temporary Pool Elevation, FMSL:
6.50 4.50
j. Temporary Pool Surface Area, ft2:
11,250 12,500
k. Permitted Storage Volume, ft3:
11,174 12,488
I. Controlling Orifice:
1.0" 0 hole 1.0" 0 hole
m. Receiving Stream / River Basin:
Perquimans River / Pasquotank
n. Stream Index Number:
30 — 6 — (7)
o. Classification of Water Body:
"SB"
II. SCHEDULE OF COMPLIANCE
1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature
(such as swales) shown on the approved plans as part of the stormwater
management system without submitting a revision to the permit and receiving
approval from the Division.
2. The permittee is responsible for verifying that the proposed built -upon area for
the entire lot does not exceed the maximum allowed by this permit.
3. 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.
4. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
5. The runoff from all built -upon area within the drainage area of the high density
portion of the project must be directed into the permitted stormwater control
system(s).
6. Within the low density portions of the permitted project, all roof drains shall
terminate at least 50 feet from the mean high water mark of surface waters.
The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
Any revision to the approved plans, regardless of size.
Project name change.
Page 3 of 8

f
State Stormwater Management Systems
Permit No. SW7080717MOD
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of all or part of the project area.
The project area is defined as all property owned by the permittee, for
which Sedimentation and Erosion Control Plan approval or a CAMA Major
permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
8. The Director may determine that other revisions to the project should require a
modification to the permit.
9. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
must be recorded showing all such required easements, in accordance with the
approved plans.
10. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
11. 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.
12. 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.
13. Permanent seeding requirements for the stormwater control must follow the
guidelines established in the North Carolina Erosion and Sediment Control
Planning and Design Manual.
14. This permit shall become void unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans and specifications, and
other supporting data.
15. The permittee shall at all times provide the operation and maintenance
necessary to assure that all components of the permitted stormwater system
function at optimum efficiency. The approved Operation and Maintenance Plan
must be followed in its entirety and maintenance must occur at the scheduled
intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of structures, orifice, catch basins and
piping.
g. Access to all components of the system must be available at all times.
16. Records of maintenance activities must be kept by the permittee. The records will
indicate the date, activity, name of person performing the work and what actions
were taken.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW7080717MOD
17. The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance and inspection records for each BMP. The report shall
summarize the inspection dates, results of the inspections, and the maintenance
work performed at each inspection.
18. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ
personnel. The facility must be in compliance with all permit conditions. Any
items not in compliance must be repaired or replaced to design condition prior to
the transfer. Records of maintenance activities performed to date will be
required.
III. GENERAL CONDITIONS
This permit is not transferable to any person or entity except after notice to and
approval by the Director. In the event there is either a desire for the facilities to
change ownership, or there is a name change of the Permittee, a completed
"Name/Ownership Change Form" must be submitted to the Division of Water
Quality, signed by the parties involved, along with the applicable documents as
listed on page 2 of the form. The project must be in good standing with DWQ.
The approval of this request will be considered on its merits and may or may not
be approved.
2. The permittee is responsible for compliance with all of the terms and conditions
of this permit until such time as the Director approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal), which have jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
7. Permittee grants permission to staff of the DWQ to access the property for the
purposes of inspecting the stormwater facilities during normal business hours.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes within 30 days.
10. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
11. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2008-
211, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
Page 5 of 8

i
State Stormwater Management Systems
Permit No. SW7080717MOD
12. This permit shall be effective from the date of issuance until June 2, 2020.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Permit issued this the 2"d day of June, 2010.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Stormwater Permit No. SW7080717 Modification
Page 6 of 8

State Stormwater Management Systems
Permit No. SW7080717MOD
Harvey Point DTA — PBI Site Expansion
Stormwater Permit No. SW7080717MOD
Perquimans County
Designer's Certification
Page 1 of 2
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full
time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 7 of 8

state Stormwater management Systems
Permit No. SW7080717MOD
Certification Requirements:
Page 2 of 2
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, a
forebay, and the vegetated filter.
15. The required dimensions of the system are provided, per the approved
plan.
cc: NCDENR-DWQ Regional Office
Perquimans County Building Inspections
Page 8 of 8

1 lea �o
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. John A. Gerig, Director
Harvey Point Defense Testing Activity
2835 Harvey Point Road
Hertford, NC 27944-8470
Dear Mr. Gerig:
Division of Water Quality
Coleen H. Sullins
Director
September 22, 2010
Dee Freeman
Secretary
Subject: Approved Plan Revision / Plan Update
Harvey Point DTA — PBI Site Expansion
Overall Low Density Commercial Development
with Areas of High Density
Perquimans County
On August 2, 2010, the Washington Regional Office received a plan revision for Stormwater
Management Permit Number SW7080717MOD. The plan revision is simply to update the Approved Plans to
show the permitted "Future" built -upon area which was included in the original design, just not shown on the
permitted plans. Based on the current permit your plan revision request is hereby approved. It has been
determined that a formal stormwater permit modification is not required for the proposed changes. We are
forwarding you an approved copy of the revised plans for your files. Please add the attached plans to the
previously approved plan set dated June 2, 2010. Please remember to execute a designer's certification (pages 7
& 8 of the permit) once the construction of the project is finished verifying that the stormwater system and
project have been constructed per the approved plans as required under Section I1.11 of the permit and to submit
the originally signed certification to the Division.
Please be aware that all terms and conditions of the permit issued on June 2, 2010 remain in full force
and effect. Please also understand that the approval of this revision to the approved plans for the subject State
Stormwater Permit is done on a case -by -case basis. Any other changes to this project must be submitted to and
approved through the Division of Water Quality prior to construction. The issuance of this plan revision does
not preclude the permittee from complying with all other applicable statutes, rules, regulations or ordinances
which may have jurisdiction over the proposed activity, and obtaining a permit or approval prior to
construction.
If you have any questions concerning this matter, please do not hesitate to call me at [phone].
Sincerely,
Scott Vinson
Environmental Engineer
AH\sv: K:\SAV\K-Stormwater\PLANREVISIONS\SW7080717M
cc: tke Basinger, PE - Hankins & Anderson, Inc.
Washington Regional Office
Central Files
North Carolina Division of Water Quality Internet: v .ncvaterquality.org 011e
943 Washington Square Mall Phone: [phone] V FAX: [phone] NorthCarolin a
Washington, NC 27889 FAX: [phone] �n 1,/ „n //l An Eaual 0000dunity r AfFrmativo Action Employer !4 `K L [4((�

Vinson, Scott
From: Vinson, Scott
Sent: Friday, September 03, 2010 5:12 PM
To: 'Mike Basinger'
Subject: RE: Harvey Point PBI Build out
Attachments: image001.jpg
Mike,
Apparently the submittal has been "lost" and has only been found this afternoon. I'm sure it's fine if they want to go
ahead and move the buildings onto the project site. I'll be back in the office next Wed. and hope to look over the plans
then. Again, I'm sure they are OK and do not let us holdup their work. Thanks,
Scott
Please consider the environment before printing this e-mail.
*t'-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Mike Basinger [mailto:[e-mail]]
Sent: Wednesday, August 25, 2010 3:42 PM
To: Vinson, Scott .
Cc: Mark Durham
Subject: Harvey Point PBI Build out
Scott,
On July 30, 2010 we sent to your attention, plans for development of six of the small sites that are a part of PBI. These
sites were noted on the plans as "future development". This was done as you requested of the client so that you could
verify that the sites were not overbuilt according to the plans submitted.
Site work on the PBI modification is nearing completion and Harvey Point would like to proceed with bringing in the
mock buildings (shipping containers).
Please let me know if you need additional information or when we can expect a response to the submittal.
Thank you,
Mike
Mike Basinger, CLS
Senior Associate
Civil Department
H&A Architects & Engineers I Applied Intelligence
4880 Sadler Road, Suite 300, Glen Allen, Virginia 23060
d: [phone] p: [phone] f: [phone]
ha-inc.com
San Diego I Richmond I Virginia Beach
2009 ZweigWhite Best Multidiscipline A/E Services Firm to Work For
2010 Engineering News -Record Top 200 International Design Firm

TRANSMITTAL
North Carolina Department of the Environment Mike Basinger
COMPANY: and Natural Resources -Land Quality Section SENDER:
943 Washington Square Mall
ADDRESS: Washington, NC 27889
RECIPIENT: Scott Vinson
PBI Expansion
PROJECT: Harvey Point Defense Testing Activity
CONTENTS: ® Attached ❑ Under Separate Cover
PHONE M
804-285-4171
Mark Durham
CC: Ron Powell (h
PROJECT #: 5637.03
DATE: July 30, 2070
® Prints ❑ Electronic Media ❑ Specifications ® Submittal 0 Other. Calcs, Narrative
Ir��2A
Updated Plan Sheets: T-1, K-1, C-301, C-302, C-303, C-601, C-602, C-603 2 I
Updated Plan Sheets: C 608, C•609, C-610 2 1
Narrative description of proposed use of six sites 2 1
Culvert Calculations for access to six sites 2
ACTION A For Your Information D No Exceptions Taken G Not Acceptable
CODES: B For Your Action E Exceptions As Noted H Refer to Remarks Below
C As Requested F Revise and Resubmit I For Submittal
L•.
N rl
T S
N�.
CD REMARKS:
s6ott,
+During our "fast track' meeting on May 11, 2010, you requested that when we planned on developing the
2 Y 7sites designated as future development, we provide you with sketches. HPDTA would like to use six of
those sites. Please review the attached drawings and descriptive narrative for the proposed intent. Four
of the sites within the Phase II area (high density design) are well below the allowable impervious
requirement (50 percent). The other two sites are within the original low density area but new
development is minimal (total impervious area, existing plus new = 9.12 percent). Total 6new' impervious
is only 0.94 percent of the drainage basin.
Please call if you have any questions.
Thanks,
Mike Basinger
4890 Sadler Road, Suite 300
Glen Allen, VA 23060
p: I8D41285-4171 .f: I8041217-8520
HANKINS & ANDERSON
FORM REVISION DATE: 617/10

PBI SITE EXPANSION
DEPARTMENT OF DEFENSE
HARVEY POINT DEFENSE TESTING ACTIVITY
HERTFORD NORTH CAROLINA
DEVELOPMENT OF SIX SITES
Harvey Point DTA proposes to develop six of the future development sites at the PBI facility.
"Use" may be a more applicable description than develop since the structures are boxes that
will be moved around the site to the position that provides the desired training scenario. There ..
will not be any utilities involved. Where applicable, culverts will be provided at ditch crossings
to access the site from the road. Consider each site will have a gravel entrance from the road
that is approximately 40 feet long and 20 feet wide for a total area of 800 square feet
Each site will have nine boxes (shipping containers) that are approximately 8 feet by 12 feet, for
a square footage of 96 feet each, for a total area of 864 square feet per site. The boxes will sit
directly on the ground and can be moved around to suit specific training requirements.
Four of the sites (3, 4, 5 & 6) are located within the recently revised Phase II area that was
designed for "high density" and two of the sites are within the area approved for low density.
The smallest of the four sites in the Phase II area has a square footage area of 12,850 square
feet. The sites were designed to accommodate 50 percent imperviousness. With the boxes
and entrance the impervious area is approximately 1664 square feet, which is only 13 percent
Impervious when applied to the smallest of the four sites.
Sites 1 and 2 are located within a drainage area that encompasses 1,556,600 square feet
(35.735 acres). That drainage basin has an existing impervious cover of 127,357 SF (2.924
acres). New work within the basin has already added 11,303 SF of impervious roadway (Road
A). Sites 1 and 2 will add another 3,328 SF of impervious area. The total impervious area is
now at 141,988 SF (3.26 acres) or 9.12 percent of the total.
The attached site plan of the six areas will show a typical layout of the boxes on each site. The
layouts are meant to show a possible layout and not necessarily show the actual configuration
that will be used. New entrances to the site and ditch culverts (sized for a 100 year storm) have
also been shown on each of the six sites.

CIRCULAR CULVERT DESIGN FORM
PROJECT: PBI EXPANSION
JOB NUMBER: 5637.03
STATION: SITE I DESIGNER: IMB
SHEET: I DATE: July 27, 2010
HYDROLOGICAL DATA
PIPE VARIABLES
METHOD: KATIONM
CULVERT MATERIAL- RCP
DRAINAGE ARFA: 0.95 AC
ENTRANCE TYPE
FILL SLOPE
C FACTOR 0.26
(PROJECT, FILL SLOPE, WALLA
FLp
TIME OF CONC 5.0 MIN
MANNING'S N -
0.013
Ke-
0.50
-----
DESIGN FLOWS/TAILWATER
CULVERT PROFILE
R.I.(YEARS) IONMR) Q(CFS) TW (FT)
2 5.35 1.32 O.00
EU-
6.30
FT
5 6.35 1.57 0.00
EIu-
6.21
FT
10 7.02 1.73 0.64
fur-
9.OD
FT
25 8.58 2.12 0.00
ELA1-
e.eo
F1
HIGH
L
50 10.09 2A9 0.00
L-
36.OD
FT
100 11.38 2.81 1.04
S-
0.0025
FTIFT
CULVERT DESCRIPTION
TOTAL
FLOW
FLOW
PER
1
HEADWATER
CALCULATIQI,15
TROL
HW
OUTLET
VELOOTVI
COMMENTS
DESIGN FLOW Siff QUANTITY
INLET ROL
LET O L
HWJD
HWI ELOID
TW
do
(dc+DYl
Iq
Ke
H
�ELft)
(YEAR) (INEH) (q
Q
BARREL
EtFV.
PS
10 18 ' 1
1.7 -
- 1.7 0.45
0.67 6.97
0.84
0.50
1.00
1.00
0.5
0.03
7.14
7.24
2.66
OUTLET CONTROL.
100 18 1
2.8
2.8 0.59
0.89 7.19
1.04
0.64
1.07
1.07
0.5
0.08
7.37
7.37
3.02
OUTLET CONTROL.
ADDTIIONAL COMMENTS
1) HIM BASED ON POLYNOMIAL BESTfR EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES i3
2) HWI MAY NOT BE ACCURATE FOR VALUES < O.SD AND > 4.5D
3) EUh0 - HIM + ELI (INVERT OF INLET CONTROL SECTION)
4) TW BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN CHANNEL
5) ho - TW OR (dc+DY2 WHICHEVER 6 GREATER
6)H -(1 +Ke+(29 n'2 U/R 1.33)V2/28
7) ELft) - ELo + H + ho
7:56 AM 7/29/2010
R.\Pmjects\563703\Gvl\Calculations\Calculations 5637.03\6 Site Dev 7.27-10\Site 1 Culvert Calculations.Kls

CIRCULAR CULVERT DESIGN FORM
PROJECT: PBI EXPANSION
JOB NUMBER: 5637.03
STATION: SITE 2 DESIGNER: IMB
SHEET: 2 DATE: July 27, 2010
HYDROLOGICAL DATA
1.1�APE
AU
VARIABLES
RCP
METHOD: RA0.30
DRAINAGE AREA: 0.30 AC
A
ENTINNCE TYPE:
ENTRANCE
E TYPE:
FILL SLOPE
C FACTOR 0.40
(PROJECT, FILL SLOPE, WALL)
TIME OF CONIC 5.0 MIN
MANNINGS-M-
0.013
Dih
Ke _
0.50
-
-
- -
�-
CULVERT PROFILE
©
0
DESIGN FLOWS/TMLWATER
R.I. NEARS) IONMR) Q(CFS) TWOT)
2 5.35 0.65 0.00
EU-
6.33
FT
5 6.35 0.77 o.00
m-
6.24
FT
10 7.02 0.85 0.81
ELb-
y,00
FT
25 8.58 1.04 0.00
ELsh-
8.80
FT
HIGH
I@
50 10.09 1.23 Om
L-
36.00
FT
100 11.38 1.38 I.Oo
S-
0.0025
FTIFT
CULVERTD SIZE
DESIGN FLOW AZE QUANTITY
TOTAL
ROW
FLOW
PER
HEADWATER
CALNLATIO
CONTROL
OUTLET
(YEAR)COMMENTS
ONC7tl It)
Q
INIETN L
BARREL HWUD HWI ELp10
TW
ET N ROL
/11V
VELOCITY)
do
Idc�DV1
IKr Ke
H
FLO1o)
ELEV.
PS
10 18 1
0.9
0.9 0.30
OAS 6.78
0.81
0.36
0.93
0.93 0.5
0.01
7.18
7.18
2.18 OUTLET CONTROL.
100 18 1
1.4
1.4 0.39
0.58 6.91
1.00
0.45
0.97
1.00 0.5
0.02
7.26
7.26
2.50 OUTLET CONTROL.
ADDTIIONAL COMMENTS
TECHNICAL FOOTNOTES
1) HWI BASED ON POLYNOMIAL BEST -FIT EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES #3
2) HWI MAY NOT BE ACCURATE FOR VALUES < 0.50 AND > 4.51)
3) ELO10 - HWI ♦ ELI ONVEKT OF INLET CONTROL SECTION)
4) TW BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN CHANNEL
7.57 AM 7/29/2010
P:\Projects\563703\Cvl\Cakulations\Cakulatiom 5637.03\6 Site De 7-27-10\Site 2 Culvert Calculations.Kls
5) no - TW OR (dct DY2 WHICHEVER IS GREATER
6) H - (1 ♦ Ke . D9 n^2 U / R-1.33) V-2 / 28
7) EL(6o) - ELO . H ♦ 6o

CIRCULAR CULVERT DESIGN FORM
PROJECT: PSI EXPANSION
108 NUMBER: 5637.03
STATION: SITE 3 DESIGNER: IMB
SHEET: 3 DATE: July 27, 2010
HYDROLOGICAL DATA
CULVERT MATERIAL•
PIPE VARIABLES
RCP
METHOD. RATIONAL
DRAINAGE AREA 0.44 AC
ENTRANCE TYPE:
FILL SLOPE
C FACTOR 0.31
O'ROIECT, FILL SLOPE, WALL)
T04E OF CONC 5.0 MIN
MANNINGS -W -
0.013
dh
Re -
0.50
--
-
- -
CULVERT PROFILE
0
O
Q
DESIGN FLOW$/TALWAIER
R.I. (YEARS) I MNMR) Q (CFS) TW OTI
2 5.35 0.74 0.00
ELI-
5.50
FT
5 6.35 0.87 0.00
Elo-
5,23
FT
10 7.02 0.97 0.30
Elu-
7.30
FT
25 8.58 1.18 0.00
ELLh-
7.10
FT
HIGH
50 10.09 1.39 0.00
L-
32.00
FT
100 11.38 1.57 0.33
S-
0.008437
FT/FT
CULVERT D PTI N
TOTAL
FLOW
PER IN
ET
HEADWATER
CALCULATIONS
CONTROL
OUTLET
COMMENTS
DYEAR) FLOW SIZE
FLOW
(QUANnTY
Q
I
L
HWUD HWI ELMO
BARR(Cm
1W
TLET O
HW
VELOOTYf
ONEL
I do
I (dc+DYt
I
Ke
H
EIMn)
ELEV,
at
10 15 1
1.0
1.0 0.41
0.52 6.02
0.30
0.39
0.82
0.82
0.5
0.02
6.07
6.07
3.55
OUTLET CONTROL.
100 15 1
1.6
1.6 0.55
0.69 6.19
0.33
0.50
0.88
0.88
0.5
0.06
6.16
6.19
4.07
INLET CONTROL.
ADDTIIONAL COMMENTS
TECHNICAL F(3F3TNOTF5 -
1) HWI BASED ON POLYNOMIAL BEST -FIT EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES 43
2) HWI MAY NOT BE ACCURATE FOR VALUES < 0.5D AND > 4.5D
3) ELMO - HWI + ELI ONVERT OF INLET CONTROL SECTION)
4) TW BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN CHANNEL
5) ho - TW OR (dc+DY2 WHICHEVER IS GREATER
6)H-0 +Ke+Q9 n-2 U/R-1.33)V-2/2a
7)ELMO)-ELo+H+ho
7:57 AM 7/29/2010
P:\Protects\963703\CivRCalmiations\Calculations 5637.03\6 Site Dev 7.27-10\Site 3 Culvert Calculatloos.xls

CIRCULAR CULVERT DESIGN FORM
PROJECT: Pill EXPANSION
JOB NUMBER: 5637.03
STATION: SITE 4 DESIGNER: IMB
SHEET: 4 DATE: July 27, 2010
HYDROLOGICAL DATA
PIPE VARIABLES
METHOD: RATIONAL
CULVERT MATERIAL- RCP
DRAINAGE AREA
0.19 AC
ENTRANCE TYPE
FILL SLOPE
C FACTOR
0.38
(PROJECT, FILL SLOPE, WALL)
FL6
TIME OF CONIC
5.0 MIN
MANNING'S -W -
0.013
Ke-
0.50
---
0
TW
DESIGN FLOWS / TAILWATER
CULVERT PROFILE
RI. (YEARS) I (INAIRJ Q (CFS) TW (PT)
2 5.35
0.39 0.00
-
Eu-
4.82
FT
5 6.35
0.47 0.00
Elo-
4.73
FT
10 7.02
0.52 829
ELv-
7.20
FT
25 8.58
0.63 0.00
ELsn-
7.00
FT
HIGH
50 10.09
0.74 0.00
L-
36.00
FT
100 11.38
0.84 033
S-
0.0025
FT/FT
"CALCULATIONS
CULVERT DESCRIPTION
TOTAL
FLOW
FLOW
PER
1
HEADWATER
I
CONTROL
HW
OUTLET
VELOCT...
COMMENTS
DESIGN FLOW SIZE QUANTITY
INLET NT
REf CON L
HWUD
HWI ELNO
TW
dC
(dc+DVS
Ib
M
H
EL(m)
T/ETRI (INCH) R)
Q
BARREL
ELEV.
cm
ITT)
M
10 15 1
0.5
0.5 0.29
0.36 - 5.18
0.29
0.29
0.77
0.77
0.5
0.01
5.51
5.51
1.93
OUTLET CONTROL.
100 15 1
0.8
0.8 0.38
0.47 5.29
0.33
0.36
0.81
0.81
0.5
0.02
5.55
5.55
2.21
OUTLET CONTROL.
ADDTIIONAL COMMENTS
1) HWI BASED ON POLYNOMIAL BEST -FIT EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES e3
2) HWI MAY NOT BE ACCURATE FOR VALUES < 03D AND > 4.513
3) EL(I10 - HWI + EU (INVERT OF INLET CONTROL SECTION)
4) TV BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN GUNNEL
5) In - TW OR (dC+DY2 WHICHEVER IS GREATER
6) H - (1 + Ke + (79 n'2 U / It'1.33) W2 / 28 .
7) EL(ho) - ELo + H + ho
7:59 AM 7/29/2010
P:\Projects\563703\Civl\Calculations\Calculations 5637.03\6 Site Dev 7.27.1 O\Site 4 Culven Calculations.xls

CIRCULAR CULVERT DESIGN FORM
PROJECT: PSI EXPANSION
JOB NUMBER 5637.03
STATION: SITE 5 DESIGNER IMB
SHEET: 5 DATE July 27, 2010
HYDROLOGICAL DATA
PIPE VARIABLES
METHOD RATIONAL
CULVERT AWTERIAL RCP
DRAINAGEARFA 3.10 AC
ENTRANCE TYPE:
FILL SLOPE
C FACTOR 0,33
(PROJECT, FILL SLOPE, WALL)
TIME OF CONIC 10.0 MIN
MANNINGS -W -
0.013
Ke -
0.50DESIGN
Ff.
FLOWS/ TNLWA7ER
CULVERT PROFILE
R.I. (YEARS) I (INAtRI Q (CFS) TW (FI)2
4.25 4.30 0.00
ELL-
4.00
FT
5 5.08 5.14 0.00
Elo-
3.92
FT
10 5.69 5.75 0.99
Elul-
6.50
FT25
6.87 6.94 0.00
ELsh-
6.30
FT
HIGHO
50 8.10 8.18 0.00
L-
30.00
FT
100 9.10 9.20 1.10
5-
0.002667
FT/FT
CULVERT DESCRIPTION
I TOTAL
FLOW
FLOW
PER
HEADWATER
CALCUL4TIQNS
CONTROL
HW
OUTLET
VELOCITY]
COMMENTS
DESIGN FLOW SIZE QUANTITY
INLET CONTROL
OUTLET CONTROL
/1LNW
HWI EL(hq
TW
do
(d«DY!
ho Ke
H
EL/M)
(YEAR) BN00 (0)
Q
BARREL
ELEV.
Q'Ng
Tp
10 24 1
5.8
5.8 0.59
1.18 5.18
0.99
0.86
1.43
1.43 0.5
0.10
5.45
5.45
3.70
OUTLET CONTROL.
100 24 1
9.2
9.2 0.78
1.57 5.57
1.10
1.10
1.55
1.55 0.5
0.25
5.72
5.72
4.12
OUTLET CONTROL.
ADDTIIONAL COMMENTS
1) HWI BASED ON POLYNOMIAL BEST -FIT EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES 43
2) MWI MAY NOT BE ACCURATE FOR VALUES < 0.51) AND > 4.SD
3) ELBhO - MWI ♦ EU ONVEKT OF INLET CONTROL SECTION)
4) TW BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN CHANNEL
8:00 AM 7/29/2010
P:\ProJects\563703\Civi\Cakuiatiotls\Calculations 5637.03\6 Site Dev 7.27-1 C\Site 5 Culvert Cakulatiotls.xls
5) ho - TW OR (dc♦ DY2 WHICHEVER IS GREATER
6)H-V ♦Ke♦(29 n'2 U/R'1.33)V'2/2g
7) ELBa) - ELo . H . ho

CIRCULAR CULVERT DESIGN FORM
PROJECT: PSI EXPANSION
JOB NUMBER: 5637.03
STATION: SITE 6 DESIGNER: IMB
SHEET: 6 DATE: July 27, 2010
HYDROLOGICAL DATA
PIPE VARIABLES
FLh
METHOD: RATIONAL
DRAINAGE AREA 0.03 AC
C FACTOR 0.60
TIME OF CONIC. 5.0 MIN
CULVERT MATERIAL- RCP
ENTRANCE TYPE FILL SLOPE
(PROJECT, FILL SLOPE, WALU
MANNINGS-M- 0.013
Ke- 0.50
� �-
�.
DESIGN FLOWS/ TAILWATER
CULVERT PROFILE
RI. OFARS) IO"Fo Q(CFS) TW(Fn
2 5.35 0.08 0.00
5 6,35 0.10 o.00
10 7.02 0.11 0.10
25 8.58 0.13 0.00
50 10.09 0.15 O.Oo
100 11.38 0.17 0.11
EU- 1.95 FT
Elo- 4.75 FT
ELL- 7.00 FT
EW- 6.80 FT HIGH
L- 34.00 FT
5- 0.005"2 FTIFT
CULVERT DESCRIPTION
TOTAL 1
FLOW
Q
FLOW
PER
BARREL
L
HEADWATER
CALCV TIONS
CONTROL
HW
ELEVDIN .
OUTLET
VELOOTYI
COMMENTS
DESIGN FLOW SIZE QUANTITY
0•FMO BNCM Iry
INLET 14 ROL
V LET COAT L
MWOD HWI EL010
do
(dc+DVl 110
Ke
H
EL(lal
T)
PS
10 15 1
0.1
0.1 0.16 0.20 5.15
0.10
0.19
0.72
0.72
0.5
0.00
5.47
5.47
1.62
OUTLET CONTROL.
100 15 1
0.2
0.2 0.18 0.23 5.18
0.11
0.20
0.73
0.73
0.5
0.00
5.48
5.48
1.87
OUTLET CONTROL.
ADDTIIONAL COMMENTS
TECHNICAL FOOTNOTES
1) HWI BASED ON POLYNOMIAL BEST.FrT EQUATIONS FROM THE FHA PUBLICATION
ENTITLED CALCULATOR DESIGN SERIES t3
2) HWI MAY NOT BE ACCURATE FOR VALUES < 0.51) AND > 4.5D
3) EL(hi) - HWI + EU (INVERT OF INLET CONTROL SECTION)
4) TW BASED ON DOWNSTREAM CONTROL OR FLOW DEPTH IN 04ANNEL
8:00 AM 7/29/2010
P:\Projects\563703\Civl\Cakulations\Cal ulations 5637.03\6 Site Dev 7.27-10\Site 6 Culvert Calculatiom.xls
5)110 - TW OR I&+00 WHICHEVER IS GREATER
6) H - (I + Ke + (29 n'2 U / R-1.33) V-2 / 2S
7) EL(ho) - Elo + H + ho

Vinson,. Scott
From: Scott Keblusek [[e-mail]]
Sent: Tuesday, May 04, 2010 11:04 AM
To: Hardison, Lyn; Vinson, Scott
Cc: Mike Basinger
Subject: PBI Site Expansion - Constructed Wetlands
Lyn/Scott,
We're in the process of finalizing our civil drawings (stormwater management and erosion & sediment control plan) and
wanted to clarify a few items in an effort to avoid a redesign down the road. The questions are as follows:
- Are the locations of the constructed wetlands (BMP #1 & #2) in an acceptable location with respect to the
incoming grass ditches (concentrated flow), the outfall weirs, and the proximity of the existing wetlands?
- Have all if the BMP design calculations been completed and done according to NCDENR requirements (peak
flow, runoff volume, storage volume, hydraulic performance of outlet device, stage -storage -discharge)?
- Concerning the Nutrient Loading & Pollutant Removal, does the Tar -Pamlico Stormwater Worksheet need to
be completed? I didn't think we needed to because it references residential footprints, but I wanted to
make sure.
- And lastly (stand-alone BMP's), is 85%TSS removal sufficient to satisfy section 3.9.1 (calculations) of the
BMP manual? Or are additional calculations required for Neuse and Tar -Pamlico NSW Stormwater
Programs?
I really do appreciate your time in helping us select the most applicable BMP, especially considering the existing site
constraints such as the SHWT and the existing wetlands. If you have any comments on the PDF sent yesterday or on the
above questions, it would be greatly appreciated.
Thanks again for your time,
Scott Keblusek
Civil Engineer
Hankins and Anderson
Architects & Engineers
4880 Sadler Road, Suite 300
Glen Allen, VA 23060
[phone]: Direct Dial
[phone]: Fax
http://www. haenei neers.com

LAT MIO7'
NOTES LONG 76'%32,13
I. DITCH SECTIONS ME SHOWN ON SHEET C-501
nonoUssMassont
F..
Hankins and Anderson
Encirmers
------- ---- ----
/y::::-ll:
"Y
COORDINATE AND INVERT CULVERT ENDSECTION
SCHEDULE LOCATION FOR ENDSECTIONS LOCATION
ENDSECTION ENDSECTION ENDSECTION! (21 CIL OF CULVERT CULVERT ENDSECTIONS ENDSECTION ENDSECTION ENDSECTION
INV OUT 5.40 INV OUT 4 20 WV OUT 6.57
ENDSECTION. FOR STRUCTURES 09 AND to N 865,783.02 N 865�926J2 N 865.732.29
37.3 LF OF 18" POP I�� 37 LF OF IS" POP ;2�83 LF OF 15" REP (2) E 2.79�4.097.97 E 2.794.806A4 E 2.794.561.33 •
PIPE LENGTHS M THE CULVERT ENDSECTION ENDSECTENDSECTION 10 ENDSECTION INV IN 5.70 O INV IN 4,40 O INV IN 664 SCHEDULE DO NOT INCLUDE THE N 865.804.35 N 865.963.04 N 865.744.B4
02 ENDSECTION O6 EIRDSECTION b ENDSECTION (2)
LENGTH OF THE ENDSECTIONS E 2.794.053A2 E 2.794.806.44 E 2.794.564.03
03 ENDSECTION ENDSECTION
- ENDSECTION ENDSECTION!
INV OUT 5.30 INV OUT 4.15 N 865.070.86 N 865,916.14
FLARED END FLARED END SECTIONS E 2.794.097.93 E 2.794.815.19
34.9 LF OF 15" FOP 36 LF OF IS POP SECTION FOR STRUCTURES 09 AND 10
ENDSECTION ENDSECTION
OI ENDSECTION ENDSECTION N 865,023.83 N 865,916AII I.
INV IN 5.9 INV IN 4.40 E 2.794,10 003 E 2.794.851.24
I "r :.vll -
WOOD BRIDGE- 1p'.*:
CLEAR SPAN-25' At L41TS Oy'
WIDTH-24' I /�tONSTRUCTION
SEE SJOLIC o.
F ----- -- -- --- - -- -- - oLLozo LIMITS 0 STRUCTURAL
�v CONSTRUCTION• - - - - - - - - - -
03 It — — ------ e — ----------------- o_
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - -- - - - - - 8 LIMITS OF
7 CONSTRUCTION
•
FUTUE
FUTURE -----
)PMENTRAREA HIM E -MEA
ta)Y. IMPERVIOUS) DEVELOPMENT INC)
0/1 IMPERVIOR")
-------- -------
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-------------- - - - - - - - - - - - - - --- - -
7
OFN
LIMITS U
CONSTRCrfO f
, 2A
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07
8 FUTURE FUTURE I
OlIELOPMIENT DEVELOPMENT AREA I
IN C�
(50Z IMPERvIckTS'-
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a)
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LM
4 ------ p
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------ -- -- -----
LIMITS OF
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DOT 6 57
LIMITS OF
IXF
cu zu-
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Ll
I I CONSTRUCTION
L
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01- >'
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LINE
LIMITS OR-
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•
FUTUREp EVELCPMENT� I TREE
DATE
04 Dixerrim 2008
:AREA
:
----------- -------
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TWA �ECT NO.
CE WETLANDT'\,,
5W.03
ar
j/
UINT nnam .1.
-------- ---- -
• f
C ONSTRUCYF
As Noted
' MATCH LNE SHEET 304
F.. F,
IMIB
NORTH
CN CKVO UY
LIVE;
ScIl,, 1 =40'-O'
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2D I lw
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0
E

MATCH LINE SHEET C-302
LIMS
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CULVERT SCHEDULE
I) ENOSECTION 23 ENDSECTION
O INV OUT 5.2•/" O NV OUT 3.61•/-
I
XinklRf Gild bldli5011
CPIWBip9 E➢901NS
6 '.\ '.'y
/
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_•-j CONSTRUCTION 4C L
. PERFORATED
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IJ IB 33 LF OF 18" RCP 23 N 97 LF OF 18" RCP
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INV IN 5.35•/- NV W 4.03•/-
I
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21 22 34.5 LG OF 18" RCP 25 26 44 LF OF IB" HOP
•
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22 ENDSECTION 26 ENDSECTION
INV IN 5.30 NV IN 5.12 /-
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/
_
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\ `�<� <\ ` F �. i
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PIPE LENGTHS IN THE CULVERT
,� SCHEDULE DO NOT INCLUDE THE
'.\ LENGTH OF THE ENDSECTIONS
!
e F
%e •` '. v
�'
I
IN A
',�..... - NEW TREE
LINE
' ''
I . —.<T ---7-�-"""__� ..'-& l
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>
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/
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- { %��-% ,I /,e �'j �• •'1'i
I) ENOSECTION 23 ENOSECTION
I
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-/6
N 865,083.81 N 865,190.86
I
\ ',,,9,.a_
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/
E 2.794.370.06 E 2.794.515.14
\'`. .•
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18 ENOSECTION T4 ENDSECTION
N 865.045.15 N 865.140.49
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E 2.794.346.73 E 2.794.484.27
21 25 ENOSECTION
I
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LINE
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f 2,)94,09).22 E 2.>94.J)0.26
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a Vie% i / %%//-,i ;C 7 l
j JI N 865.T30.30.3J N 864,906,06.6J
qa
LIMITS OFO+ - t
, %//, •�,i„y ¢; ;• q
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r
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NOTE
,/•
T6 . • •\. J 1 1 .00,
��'/ DITCH SECTIONS
ON SHEET L-501
ARE SHOWN
04 Decembn 2008
Nee FRWFO NO
y`•
P .�'
5637.03
cLrtM avOlFci M.
-
e
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a '•
i :
LIMITS OF / /
£ CONSTRUCTION 'l\'••wNo•LE-
Sc.II,: L_40'-0.
NORTH
U1B

010.0.276x2.7x66234.49.36 CFS ,_ \ ..� '. •\'.
0700.0.276x3.5.66.234.63.98 CFS
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_ _
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\ • yL�� IMPERVIOUS- AREA•39.444 SOFT
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_ it VOL
�
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.
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010.0.284./{ .35.735.3255 CFS
0100.0.28 4.7x35.735.47.70
9
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•
DRAINAGE
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�� \ �• .� - PBI /
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---- - - • ', `a- _ :DENSITY I� IMP `pYJOOSj!`REgr'4,2 \'1,, ; DIVIDE (LOW,I -
VOL` R 94 t! OENSrtsi'
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/
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In
NORTH
DIe: 1•=150'-0- O
MR
+vaaovEn er
—
C 702

r
Hankins and Anderson
Consultinq Engineers
MAY 27 2010
qVJ')-VVARQ
SWM Calculations
Project:
PBI SITE EXPANSION UPDATES
Project No:
5637.03
Date:
5/05/10
Summary By:
Scott Keblusek
Prepared For:
NCDENR
Subject:
Stormwater & BMP Calculations
The following calculations address the BMP requirements (water quality and storage
volumes) outlined in the NCDENR Stormwater BMP Manual.
° BMP Supplemental Forms
- NCDENR Required Spreadsheet Attached [Appendix W]
° Peak Flow, 1-yr storm (Rational Method); below:
Q = C * l *A / = d on) / TC (min) * 60 (min/ho
- BMP#1 (Tc=12min)
Q-post = 0.39 * 3.02 in/hr * 2.18 ac
Q-post = 2.56 cfs [post]
Q-pre = 0.30 * 3.02 in/hr * 2.18 ac
Q-pre = 1 .97 cfs [control: allowable discharge]
- BMP#2 (Tc = 18min)
Q-post = 0.44 * 2.53 in/hr * 5.88 ac
Q-post = 6.55 cfs [post]
Q-pre = 0.30 * 2.53 in/hr * 5.88 ac
Q-pre = 4.46 cfs [control: allowable discharge] .
° Runoff Volume, first 1.5 inches (Simple Method); below:
Rv = 0,05 t 0.9 * lA
cc: file,
2445 Truxtun Road, Bldg 27, Suite 205
San Diego, California 92106
619.488.9090
619.758.0879 Fax
AA,
pe'�'c S3 • �!'�%�
848 =
�i��CtN✓: �G I NE��x� \�
V = 3630 * RD * Rv *A
4880 Sadler Road. Suite 300
Glen Allen, Virginia 23060
$04.285.4171
804.217.8520 Fax
$712 Cteveland Street, Suite 200
Virginia Beach, Virginia 23462
757.213.6040
757.499.0599 Fax
www.haengineers.com

Hankins and Anderson
Consulting Engineers
Page: 2
13MP#1 (Impervious Area = 0.42 ac)
Rv-post = 0.05 + 0.9 * (0.42 ac / 2.18 ac)
RV -post = 0.22
V = 3630 * 1.5 in * (0.22) * 2.18 ac
V = 2,611 Cu.ft [treatment volume]
Rv-pre = 0.05 + 0.9 * (0.0 ac / 2.18 ac)
Rv-pre = 0.05
V = 3630 * 1.5 in * (0.05) * 2.18 ac
V = 594 CU.ft [pre -developed volume]
- 13MP#2 (Impervious Area = 1.27 ac)
Rv-post = 0.05 + 0.9 *t(1-27ac—/•5.88 ac)
• Rv-post = 0.24
V = 3630 * 1.5 in * (0.24) * 5.88 ac
V = 7,684 Cu.ft [treatment volume]
Rv-pre = 0.05 + 0.9 * (0.0 ac / 2.18 ac)
Rv-pre = 0.05
V = 3630 * 1.5 in * (0.05) * 5.88 ac
V = 1,601 CUA [pre -development volume]
° Storage Volume: Time vs. Elev., Time vs. Vol. Tables
Pond Pack Software Calculations Attached [Appendix 'B]
° Hydraulic Performance: Outlet Device Input Data / Calculations
Pond Pack Software Calculations Attached [Appendix'B']
Stage -Storage -Discharge: Tables & Drawdown Calculations
- Pond Pack Software Calculations Attached [Appendix 'B]
° Channel Design: Geometry & Flow Characteristics
cc:
2445 1ruxtun Road, Bldg 27. Suite 205 4880 Sadler Road, Suite 300
San Diego, California 92106 Glen Allen, VI rg In la 23060
619.488.9090 804.285.4171
619.758.0879 fax 804.217,8520 Fax
5712 Cleveland Street, Suite 200
Virginia Beach, Virginia 23462
757.213.6040
757.499.0599 Fax
www.haengineers.com

Hankins and Anderson
Consultinq Enqineers
Page: 3
Manning's Ditch Calculations Attached [Appendix 'C]
n Culvert Design: Forms
- Computations Attached [Appendix'D']
° Nutrient Loading, per Scott Vinson
- n/a
° Pollutant Removal of BMP (Stand -Alone):
- 85%TSS Removal for 'Constructed Wetlands'
cc:
2445 rruxtun Road, Bldg 27, Suite 205
4880 Sadler Road, Suite 300
San Diego, California 92106
Glen AIIen,Virginia 23060
619.488.9090
804.285.4171
619.758.0879 Fax
804.217.8520 Fax
5712 Cleveland Street, Suite 200
Virginia Beach, Virginia 23462
757.213.6040
757.499.0599 Fax
www.haengineers.com

Reservior Drawdown Calculations
BMP#1
Orifice Q e C,,A-(2gH)"
Quantity
Diameter 1 inch
Coefficient 0.6
Centerline Elevation 2
Area 0.005 sf
Countour Area Incremental Cumulative Head Flow At
Elevation Volume Volume Rate
(s0 (co (co (f0 (cfs) (min)
2.0
585
3.0
1040`::"
40
1500`
y a'
0
5075 -
r z 6 0
6970
t r.,7.0
11665
G�
is
,
tri
is
f;
fi
�1
F
r.Y
e4:
0
0
0.0 0.0 0
802
802
1.0 0.0 509
1263
2065
2.0 0.0 567
3111
5176
3.0 0.0 1140
5997
111741
4.0 0.1 1903
9217
20391
I 5.0 0.1 2616
Ces<,V� vA _ d*1 C;
Accumulated
t
(hr)
112
104
94
75
44
Hankins and Anderson, Inc. 5/25/2010 Page 1

Reservior Drawdown Calculations
BMP#2
Orifice Q — C,A-(2gH)"
Quantity
Diameter
1 inch
Coefficient
0.6
Centerline Elevation
0
Area
0.005 sf
Countour Area
Elevation
(so
`0.0' `:`
705
2.0- -
1765
°3.0
5535
4 0-
7975
5 0
13155
In
r'
u,
Incremental
Cumulative Head Flow At
Accumulated
Volume
Volume Rate
t
(cf)
(co (ft) (CIS) (min)
(hr)
0
0 0.0 0.0 0
126
886
886 1.0 0.0 562
117
1409
2294 2.0 0.0 632
106
3475
5770 3.0 0.0 1273
85
6718
12488 4.0 0.1 2132
49
10458
22945 5.0 0.1 2968
1eu%v,%2\_
A
74684 c4
G7A.s
Hankins and Anderson, Inc. 5/25/2010 Page 1

TRANSMITTAL
COMPANY_N.C. Dept of.Enrironment 8 Nat. Resources SENDER: sek
ADDRESS: 943 Washington Square Mall
Washinaton N(. 97RRn
PHONE: [phone]
RECIPIENT: Scott Vinson_ Environmental Engineer CC: n/a
PROJECT: Harvey Point DTA - FBI Site Expansion PROJECT #: 5637.03 gg��M�PAY 2r,5 V010
Stormwater Review SW 7080717 Mod. 0 U �/ P' Y U ARLi
CONTENTS: Attached DATE:
r r Under Separate Cover Wednesday,. May 26, 2010
I—
. Prints F Electronic Media r- Specifications r Submittal r- Other !
.DESCRIPTION'�1.'. z ,B,dJ11,� r r_--
COPIES-;
.'ACTION CODE -'
Revised Stormwater Calculations
21
Revised Plans (5 sheets)
2
I
Revised Application (1 pg)
1
1
ACTION CODES: A For Your Information
B For Your Action
C As Requested
REMARKS:
H&k
HANKINS & ANDERSON
FORM RFVI SIGN DATE: 12/02/09
D No Exceptions Taken G Not Acceptable
E Exceptions As Noted H Refer to Remarks Below
F Revise and Resubmit I For Submittal
48BO Sadler Road, Suite 300
Glen Allen, VA 23050
p: 18041 285-4171 t 18041 217-8520
ha-inc.com

Hankins and Anderson
Consulting Engineers
Company: NCDENR
Attn:
Project: PBI Expansion
Project No.: 5637.03
Date: May 11, 2010
Description
Set of Plans for SWM
Set of Plans for E&S
Submittal Attachments (Booklet), Including;
Narrative with additions in 2008 &2010
Vicinity and location map
Soils report
Calculations, sealed and signed
Transmittal
We are Sending You:
x Attached
Under Sep. Cover
x Prints
Specifications
Vellum
Mylar
Diskette
x Submittal for SWM &
E&S
x Other
SWM & E&S Applications and Wetland O&M agreement forms
signed and delivered by Harvey Point representative.
No. Copies Action Code
2
2
4
Action Codes: A For Your Information D No Exceptions Taken G Not Acceptable
B For Your Action E Exceptions as Noted H Refer to Remarks Below
C As Requested F Revise and Resubmit I For Submittal
Remarks:
cc: file, Mark
By: l
Mike Basinger
4880 Sadler Road
Glen Anen, Virginia 23060
[phone]
[phone] Fax
w .haengineers.com

For ULNH U�See UNO
Reviewer: 1 nw
North Carolina Department of Environment and
Natural Resources Submi, GcL I t
NCDENR Request for Express Permit Review Time
Confirm:
FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed form to Express
Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application package
of the project location. Please include this form in the application package.
• Asheville Region -Alison Davidson 828-296-4698;alison.davidson(ancdenr.gov
• Fayetteville or Raleigh Region -David Lee 919-791.4203; david.lee(aiincdenngov
• Mooresville & -Patrick Grogan 704.663.3772 or patrick.grogan dincderingov
• Washington Region -Lyn Hardison 252-946.9215 or lyn.hardison(pncdenr.gov
• Wilmington Region -Janet Russell 910-350-2004 or janet.russell(Oncdenr.gov
NOTE: Project application received after 12 noon will be stamped in the following work day
Enter Related SW
Permits of request
SW
SW
SW
SW
SW
Project Name: HARVEY POINT DEFENSE TESTING ACTIVITY PBI SITE EXP County: PERQUIMANS
Applicant: JOHN A. GERIG, DIRECTOR Company: US GOVERNMENT -HARVEY POINT DEFENSE TESTING ACTIVITY
Address: 2835 HARVEY POINT ROAD City: HERTFORD, State: NC Zip: 27944-8470
Phone: [phone], Fax: [phone], Email:
Physical Location:GO TO THE END OF THE PUBLIC RD NCSR 1336, CONTINUE ON HARVEY POINT ROAD (ALSO NAMED TOWERS BLVD) 2.12 MILES TO THE
FBI ENTRANCE ON THE LEFT
Project Drains into PERQUIMANS waters — Water classification B SW (for classification see-http://h2o.enr.state.nc.us/bims/reports/reportsWB.html)
Project Located in PASQUOTANK River Basin. Is project draining to class ORW waters? Y/N , within % mile and draining to class SA waters Y/N or within 1
mile and draining to class HOW waters? Y/N �+
Engineer/Consultant: MIKE BASINGER Company: HANKINS AND ANDERSON EXPRESS
Address; 4880SADLER ROAD City: GLEN ALLEN, State: VA Zip: 23060 MAY 1 ZO)O
Phone: [phone], Fax: [phone], Email: _@_
SECTION ONE: REQUESTING A SCOPING MEETING ONLY
❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER:
OMW4 ®r.1,11IFT1
SECTION TWO: CHECK ONLY THE PROGRAM (S) YOU ARE REQUESTING FOR EXPRESS PERMITTING
❑ 401 Unit ❑ Stream Origin Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions
❑ IntermittenUPerennial Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions
❑ 401 Water Quality Certification ❑ Isolated Welland (_linear ft or _acres)
❑ Riparian Buffer Authorization ❑ Minor Variance ❑ Major General Variance
® State Stormwater ❑ General ❑ SFR, ❑ SFR < 1 ac. ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Other
❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)]
❑ High Density -Detention Pond _ # Treatment Systems ❑ High Density -Infiltration _ #Treatment Systems
❑ High Density -Bio-Retention _ # Treatment Systems ® High Density —SW Wetlands _ # Treatment Systems
❑ High Density -Other _ # Treatment Systems /® MOD:® Major ❑ Minor ❑ Plan Revision ❑ Redev. Exclusion SW 7080717 (Provide permit k)
❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
® Land Quality ❑ Erosion and Sedimentation Control Plan with ( acres to be disturbed.(CK # (far DENR use)) 15 3%)
SECTION THREE — PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT (for both scoping and express meeting request)
Wetlands on Site ❑ Yes ❑ No
Wetlands Delineation has been completed: ❑ Yes ❑ No
US ACOE Approval of Delineation completed: ❑ Yes ❑ No
Received from US ACOE ❑ Yes ❑ No
... DENR rise
Fee Solit for multiple oermits: (Check N .Q h( 'kV
Buffer Impacts: ❑ No ❑ YES: _acre(s)
Isolated wetland on Property ❑ Yes ❑ No
404 Application in Process wl US ACOE: ❑ Yes ❑ No Permit
Total Fee Amount S
SUBMITTAL DATES
Fee
SUBMITTAL DATES
I Fee
CAMA
$
Variance (❑ Maj; ❑ Min)
$
SW (® HD, ❑ LD, ❑ Gen)
pw
401:
$
Los
$ f , : Q;
Stream Deter,_
I $
NCDENR EXPRESS March 2009

���
NC®ENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. John A. Gerig, Director
Harvey Point Defense Testing Activity
2835 Harvey Point Road
Hertford, NC 27944-8470
Dear Mr. Gerig:
Division of Water Quality
Coleen R Sullins
Director
May 21, 2010
Dee Freeman
Secretary
Subject: Stormwater Review SW7080717 Modification
Harvey Point DTA — PBI Site Expansion
Perquimans County
This office received a Coastal Stormwater permit application and plans for the subject project on May 12, 2010. A
preliminary review of the project indicates that before a State Stormwater permit can be issued the following additional
information is needed.
1. Because this is a modification to the original overall low density 85.5 acre project site and portions of the project will
remain "low density', please provide an additional drainage area column under section IV., no. 10 on page 3 of the
application to include the total 85.5acre drainage area along with the total impervious area (for all phases) &
percentage impervious proposed for this entire project.
2. The impervious areas for figuring the Rv factor in the design storm Simple Method calculations for both BMPs are a
little off. For BMP #1 0.5lacres is used instead of 0.42acres and for BMP#2. 0.91acres was used instead of
1.27acres. Please revise as needed to show the minimum required calculated volumes for each BMP/wetland.
3. The drawdown orifice for BMP#1 appears to be too large to draw down the minimum designed (1.5') storm within
2-5 days. The total volume provided (11,173cf) may have been used instead of the just the required volume for the
1.5" storm of—2,650cf The minimum design volume required to be stored should be used in the draw down
equations in order to make sure that the design storm does not exit the basin prior to 2 days through a larger orifice
calculated with a larger than required volume. For BMP41 try a 1.0" drawdown orifice. For BMP#2, the minimum
design storm volume should still be used to figure what size orifice to use, however it appears that the proposed 1.5"
diameter orifice will work for a 2.5 day drawdown. Please revise calculations as needed to verify this.
4. Please do not forget to have any plans, calculations, supplements, narrative, etc. revised, signed, sealed and dated as
necessary to reflect all changes when re -submitting.
The above requested information must be received in this office prior to June 2, 2010 or your application may be
returned as incomplete. The return of this project will necessitate resubmittal of all required items including the application
fee. If you need additional time to submit the required information, please mail or fax your request for time extension
to this office at the Letterhead address.
You should also be aware that the Stormwater Rules require that the permit be issued prior to any development
activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina General Statute 143-215.1
and may result in civil penalties of up to $10,000 per day.
North Carolina Division of Water Quality Internet: w nrwaterquality.org One
943 Washington Square Mall Phone- 252-946-64811 FAX: [phone] NorthCarotlna.
Washington, NC 27889 FAX: [phone] Naturallu

Please reference the Stormwater Project Number above on all correspondence. If you have questions, please feel free
to contact me at [phone].
cc: Scott Keblusek, Hankins & Anderson (email)
Washington Regional Office
North Catalina Division of Water Quality
943 Washington Square Mall
Washington, NC 27889
An Equal Oowrtunity \ Affirmative Arlan EmniDwr
Sincerely,
.................
Scott Vinson
Environmental Engineer
Internet: www.ncm aterquality.org
Phone: [phone] FAX: [phone]
FAX [phone]
Onc
NorthCarotina
Natitrallly

iNCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all the required information.
?roject name
)ontact name
'hone number
)ate
)rainage area number
;ite Characteristics
)rainage area
mpervious area
3ercent impervious
)esign rainfall depth
leak Flow Calculations
I-yr, 24-hr rainfall depth
1-yr, 24-hr intensity
)re -development 1-yr, 24-hr runoff
lost -development 1-yr, 24-hr runoff
Ire/Post 1-yr, 24-hr peak control
;forage Volume: Non -SA Waters
Ainimum required volume
/olume provided (temporary pool volume) -
;forage Volume: SA Waters Parameters
1.5' runoff volume
)re -development 1-yr, 24-hr runoff volume
lost -development 1-yr, 24-hr runoff volume
dinimum volume required
/olume provided
)utlet Design
Depth of temporary pool/ponding depth (DPI)
Drawdown time
Diameter of orifice
Coefficient of discharge (Co) used in orifice diameter
calculation
Driving head (Ho) used in the orifice diameter calculation
W AWTT f,,\OG
> ti
IScott Keblu'sek 3z
804.549.4834i
`April 4, 20105 : a
BMP#1 qua
94;96t ()O! ft
"18 265:00' nZ
19.2% %
`1 '!%inch
1 95 ,t?•, i<`n3/sec
�2.53 ,1,,.,a ', n3/Sec
0.58 n3/sec
�308600 ';;n3�
11,173.00 ft3
pp
-
u „. v ff3
1 ' n3 er .r
n3
Rn'X:•f14AM`i n3
OK
OK
OK
7 OK
-tzo A f�,
ass)
OK
Form SW401-Wetland-Rev.6-11/16/09
Parts I and 11. Project Design Summary, Page 1 of 3

Surface Areas of Wetland Zones
Surface Area of Entire Wetland
11 250.00JV
OK
Shallow Land
4;500A0!fe
OK
The shallow land percentage is:
40% %
Shallow Water
4,500.001112
OK
The shallow water percentage is:
40% %
Deep Pool
Forebay portion of deep pool (pretreatment)
1650.00':tt2
OK
The forebay surface area percentage is:
15% %
Non-forebay portion of deep pool
600:OOi ft2
OK
The non-forebay deep pool surface area percentage is:
5% %
Total of wetland zone areas
11,250.00 ft2
OK
Add or subtract the following area from the zones
0.00 112
Topographic Zone Elevations
Temporary Pool Elevation (TPE)
Shallow Land (top)
- 6I501ft amsl
Permanent Pool Elevation (PPE)
Shallow Water/Deep Pool (top)
5i50!ft amsl
Shallow Water bottom
of , '5.001ft amsl
Most shallow point of deep pool's bottom
`3:5.01ft amsl
Deepest point of deep pool's bottom
°" 250ift amsl
Design must meet one of the following two options:
This design meets Option #1,
�1
N rTk (Y or N)
Top of PPE is within 6' of SHWT, If yes:
SHWT (Seasonally High Water Table)
""-„ 5:00 ft amsl
OK
This design meets Option #2,
)
Y(Y or N)
Welland has liner with permeability < 0.01 in/hr, If yes:
Depth of topsoil above impermeable liner
::56.00 in
OK
Topographic Zone Depths
Temporary Pool
Shallow Land
12.00 in
OK
Permanent Pool
Shallow Water
6.00 in
OK
Deep Pool (shallowest)
24.00 in
OK
Deep Pool (deepest)
36.00 in
OK
Planting Plan
Are cattails included in the planting plan?
N !s++: (Y or N)
OK
Number of Plants recommended in Shallow Water Area:
Herbaceous (4'cubic-inch container)
1,150
Number of Plants recommended in Shallow Land Area:
Herbaceous (4'cubic-inch container), OR
1,150
Shrubs (1 gallon or larger), OR
184
Trees (3 gallon or larger) and Herbaceous (4+ cubic -inch)
23 and
920
Number of Plants provided in Shallow Water Area:
Herbaceous (4'cubic-inch container)
_
1150
OK
Number of Plants provided in Shallow Land Area:
Herbaceous (4'cubic-inch container)"'
1 150
OK
Shrubs (1 gallon or larger)
;.185i
OK
Trees (3 gallon or larger) and
`"' ; Ui,i251
OK
Grass -like Herbaceous (4+cubic-inch)
;. • ,+,`r
Form SW401-wetland-Rev.6-11/1er0e Parts I and n. Project Design Summary, Page 2 of 3

Additional Information
Can the design volume be contained?
(Y or N)
OK
Does project drain to SA waters? If yes,
N
= (Y or N)
Excess volume must pass through filter.
What is the length of the vegetated filter?
60.001' _ it
Are calculations for supporting the design volume provided in the
application?
Y.
(Y or N)
OK
Is BMP sized to handle all runoff from ultimate build -out?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
N
(Y or N)
Insufficient ROW location.
The length to width ratio is:
2.00:1
OK
Approximate wetland length
150.001ff
Approximate wetland width
75.00 it
Approximate surface area using length and width provided
11,250.00
ft'
This approx. surface area is within this number of square feet
of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Font SW401-Wetland-Rev.6-11/16/09 Parts I and II. Project Design Summary, Page 3 of 3

NCDENR
O=OF W A r f90
y �
STORMWATER MANAGEMENT PERMIT APPLICATION p�
L CATION FORM
401 CERTIFICATION APPLICATION FORM
WETLAND SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all the required information
I.YP.,ROJECTINFORMATION:L`'tt:
Project name PSI SITE EXPANSION!UPDATES"'HARVEY,P.OINT TESTING ACTIVITY
Contact name Scott Kebluse k
Phone number 804`.549.4834
Date Apol4;2010
Drainage area number BMP,#2
n:
Site Characteristics
Drainage area 256;166.00',ff2
Impervious area 55,325.00i ffz
Percent impervious 21.6% %
Design rainfall depth `�:- 1`.50''inch
Peak Flow Calculations
1-yr, 24-hr rainfall depth 2.98 ' ,in
1-yr, 24-hr intensity ; i:2153 .::' I in/hr
Pre -development 1-yr, 24-hr runoff � 4.46 • ."."'! ff3/sec
Post -development 1-yr, 24-hr runoff „6..55 , .ff3/sec
Pre/Post 1-yr, 24-hr peak control 2.09 ft3/sec
Storage Volume: Non -SA Waters
Minimum required volume
Volume provided (temporary pool volume)
Storage Volume: SA Waters Parameters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Minimum volume required
Volume provided
Dutlet Design
Depth of temporary pool/ponding depth (DP,,,)
Drawdown time
Diameter of orifice
Coefficient of discharge (Co) used in orifice diameter
calculation
Driving head (H.) used in the orifice diameter calculation
i�
66�,:08�3662�ft3 I
12;488.00; ft3
ff3
ff3
ft3
OK
12:00,in
OK
"1'12!00 days
OK
150;in
OK
r0.60•(unitless)
OK
Form SW401-Wetland-Rev.6-11116/09
Parts 1 and II. Project Design Summary, Page 1 of 3

Surface Areas of Wetland Zones
Surface Area of Entire Welland
12,500.00; ft2
OK
Shallow Land
5,000.00rftz
OK
The shallow land percentage is:
40% %
Shallow Water
5,000:00 ft2
OK
The shallow water percentage is:
40% %
Deep Pool
Forebay portion of deep pool (pretreatment)
1,875.6012
OK
The forebay surface area percentage is:
15% %
Non-forebay portion of deep pool
625.00'ft2
OK
The non-forebay deep pool surface area percentage is:
5% %
Total of wetland zone areas
12,500.00 ft2
OK
Add or subtract the following area from the zones
0.00 ft2
Topographic Zone Elevations
Temporary Pool Elevation (TPE)
Shallow Land (top)
4.50!ft amsl
Permanent Pool Elevation (PPE)
Shallow Water/Deep Pool (top)
3.50.ft amsl
Shallow Water bottom
3.00,ft amsl
Most shallow point of deep pool's bottom
Ixtf amsl
"
Deepest point of deep pool's bottom
0:50 ft amsl
Design must meet one of the following two options:
This design meets Option #1,
Top of PPE is within 6" of SHWT, If yes:
N (Y or N)
SHWT (Seasonally High Water Table)
5.80'ft amsl
PPE Not Within 6 in of SHWT, Must Use Option #2
This design meets Option #2,
"
Wetland has liner with permeability < 0.01 in/hr, If yes:
Y (Y or N)
Depth of topsoil above impermeable liner
6.00 in
OK
Topographic Zone Depths
Temporary Pool
Shallow Land
12.00 in
OK
Permanent Pool
Shallow Water
6.00 in
OK
Deep Pool (shallowest)
30.00 in
OK
Deep Pool (deepest) ,
36.00 in
OK
Planting Plan
Are cattails included in the planting plan?
N (Y or N)
OK
Number of Plants recommended in Shallow Water Area:
Herbaceous (4'cubic-inch container)
1,250
Number of Plants recommended in Shallow Land Area:
Herbaceous (Ccubic-inch container), OR
1,250
Shrubs (1 gallon or larger), OR
200
Trees (3 gallon or larger) and Herbaceous (4+ cubic -inch)
25 and
1,000
Number of Plants provided in Shallow Water Area:
Herbaceous (4'cubic-inch container)
1,250.
OK
Number of Plants provided in Shallow Land Area
Herbaceous (4'cubic-inch container)
1;250
OK
Shrubs (1 gallon or larger)
200'
OK
Trees (3 gallon or larger) and
25
OK
Grass -like Herbaceous (4+ cubic -inch)
Form SW401-Wetland-Rev.6-11/16/09 Parts I and 11. Project Design Summary, Page 2 of 3

Additional Information
Can the design volume be contained?
Y
(Y or N)
OK
Does project drain to SA waters? If yes,
- N-
`:' ; `(Y or N)
Excess volume must pass through filter.
What is the length of the vegetated filter?
200.00 ".. b'ft
Are calculations for supporting the design volume provided in the
Y
^.. (Y or N)
OK
application.
Is BMP sized to handle all runoff from ultimate build -out?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
N
(Y or N)
Insufficient ROW location.
recorded access easement to a public Right of Way (ROW)?
The length to width ratio is:
1.56 :1
OK
Approximate wetland length
140.00 It
Approximate wetland width
` 90.00 It
Approximate surface area using length and width provided
12,600.00
ftZ
This approx. surface area is within this number of square feet
of the entire wetland surface area reported above:
Will the wetland be stabilized within 14 days of construction?
Y
(Y or N)
OK
Form SW401-Wetland-Rev.6-11116/09 Parts 1 and II. Project Design Summary, Page 3 of

Permit No.
(to be provided by DWQ)
III�REQUIRE64ITEMS;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 Na.
1. Plans (1" - 50' or larger) of the entire site showing:
G - 302.
- Design at ultimate build -out,
- py
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Wetland dimensions (and length to width ratio),
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement.
. G-GIY
2. Plan details It" = 50' or larger) for the wetland showing:
- Welland dimensions (and length to width ratio)
- Pretreatment system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Overflow device, and
- Boundaries of drainage easement.
C-614
3. Section view of the wetland (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Wetland layers
All wetlands: Shallow land depth, shallow water depth, deep pool depth
Option 1, no clay liner: SLWT depth
Option 2, day liner: Depth of topsoil on top of liner, liner specifications
l ii-&1V 4. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
Wo L. /i.FtatiS A variety of several suitable species (not including rattails),
Sizes, spacing and locations of plantings,
Total quantity of each type of plant specified,
A planting detail,
The source nursery for the plants, and
Fertilizer and watering requirements to establish vegetation.
9 G 6a5 5. A construction sequence that shows how the wetland will be protected from sediment until the entire
14 drainage area is stabilized.
6. The supporting calculations (including drawdown calculations).
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
A8. A copy of the deed restrictions (if required).
9. A soils report that is based upon an actual field investigation and soil borings. County soil maps are not
an acceptable source of soils information.
SW401-Wetland-Rev.6-11/16109 Part III, page 1 of 1

'_, DWQ USE ONLY '• t :.:
Fee Paid (.ktr .4W Sy Permit Number MD
5 VJ '7 og orf l '7 M 0
Applicabl si' Coastal SW -1995 oastaI S - 2008 ❑ Ph lI - Post Construction
`. 5mon-Coastal
(select nll t1*1 1 'q SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina r�
Department of Environment and Natural Resources fir/
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
1. 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.):
Harvey Point Defense Testing Activity (HPDTA) PBI Site Expansion
2. Location of Project (street address):
2835 Harvey Point Road
City:Hertford County:Perquimans Zip:27944-8470
3. Direotions to project (from nearest major intersection):
Proceed east on State Route 1336 (Harvey Point Road) from US Route 17 intersection to the end of the public
road (front gate of HPDTA). Continue on Harvey Point Road (also named Towers Boulevard) 212 miles to
the PBI entrance on the left
4. Latitude:36° 05' 58" N Longitude:76018' 42" W of the main entrance to the project.
H. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ❑New ®Modification
b.lf this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW7080717 its issue date (if known)11-17-08 and the status of
construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
®Low Density ®High Density []Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application Ora letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control:15.03 ac of Disturbed Area
❑404/401 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 permitHPDTA-PBI Expansion, PERDU-2009-001 Issued 8-15-08 Revised 2-
24-10, Erosion & Sediment Control
FormSWU-101 Version07Juiy2009 Page 1 of

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the proiect):
Applicant/Organization: Harvey Point Defense Testing Activity
Signing Official & Title:)ohn A. Gerig, Director
b.Contact information for person listed in item I above:
Street Address:2835 Harvey Point Road
City:Hertford State:NC Zip:27944-8470
Mailing Address (if
State:
Phone: (252 ) 426-4360 Fax: (252 ) 426-4369
c. Please check the appropriate box. The applicant listed above is:
❑ The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Properly Owner/Organization:US Government
Signing Official & TitleJohn A. Gerig, Director HPDTA
b.Contact information for person listed in item 2a above:
Street Address:2835 Harvey Point Road
City:Hertford State:NC Zip:27944-8470
Mailing Address (if applicable):
City:
Phone: (252 ) 426-4360
Fax: (252 ) 426-4369
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: Harvey Point Defense Testing Activity
Signing Official & Title:Pam Klepec, Environmental Manager
b.Contact information for person listed in item 3a above:
Mailing Address:2835 Harvey Point Road
City:Hertford
Phone: (252 ) 4264360
Email:[e-mail]
State:NC Zip:27944
Fax: (252 ) 426-4369
4. Local jurisdiction for building permits: Perouimans County Building Inspections Hertford NC 27944
Point of Contact: Phone #: (252 ) 426-8283
Form SWU-101 Version 07July2009 Paget of6
i ..
I

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Grass swales in series with a constructed wetland. First 1-1 /2" to be treated for hioh dancit
2. a.If claiming vested rights, identify the supporting documents provided and the date theey a approW&i-
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.Identify the regulation(s) the project has been designed in accordance with:
® Coastal SW -1995 ❑ Ph II - Post Construction !�/ 1
3. Stormwater runoff from this project drains to the Perquimans Riv�r� np j s ' River basin.
4. Total Property Area: 85.5 acres
5. Total Coastal Wetlands Area: 0.0 acres
6: Total Surface Water Area: 0.0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area':85.5 acres
Total project area shall be calculated to exclude the following: the nortual ool of inn�rounded stnictures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line nay
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 =3-63' %
9. How many drainage areas does the project have?2 (For high density, count 1 for each proposed engineered
Stormwater BMP. I -or low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below. N9 d Ifu rtitt L.- 0'-Stk/
k
Basin Information ,, _, , ,
,.Drainage Area!
Draina e'Area 2,
Draina' e Area 3
Drainage Area;. `
Receiving Stream Name
Perquimans
Perquimans
Perquimans
d �fe
Stream Class *
18,-Sw 0
wl. fA
S A-esw
Su
Stream Index Number *
-24-
24
Total Drainage Area (so - --
---94960= .I$
t 256132= 5-, M
3724380% Z9.
Tt,
On-site Drainage Area (so
94960
256132
3724380
Off -site Drainage Area (so
0
0
0
Proposed Impervious Area** s9
437103 /
,03
% Im ervious Area** total
.z 15-b�
2Utr 151- ''
11.7
0
1c. d 3
Im ervious` Surface Area - '",
DrainageAreal :
Draina e Area 2
Draina e Area 3
Drama e Area.. -
On -site Buildings/Lots (so
5565
1920
37296
On -site Streets (so
8680
1 20305
270309
On -site Parking (sf)0=
__ --:.
0
7260
On -site Sidewalks (so
--0-.
0
530
-
Other on -site (so
0 ,9
gy/ 0-
15877
Future (so
0
17219
1 17219
Off -site (so
0
0
88612
Existing 13UA*** (so
0
f,27 0
0
Total (so:
165
5'3 #
1 437103
Stream Class and Index Number can be determined at: littp://h2o.enr.state.)ieuslbims/reports/reportsWB.litml
Form SWU-101 Version 07July2009
Page 3 of 6

IV. PROJECT INFORMATION
1. In the space provided below, hriefly summarize how the stormwater runoff will be treated.
Grass swales in series with a constructed wetland First 1-1 /2" to be treated for high density cluster. 'Vee '
high (SHWT) seasonal high water table is of concern but is subject to change considering the abnormally wet
winter encountered on the east coast.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.Identify the regulation(s) the project has been designed in accordance with:
® Coastal SW - 1995 ❑ Ph II - Post Construction
3. Stormwater runoff from this project drains to the Perquimans River River basin.
4. Total Property Area: 85.5 acres 5. Total Coastal Wetlands Area: 0.0 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':85.5 acres
TO"" project nren shall be calculated to exclude the following the normal ool of anpounded structures, the area
between the banks of streams and rivers, the area below the Norntal High Water (NM line or Mean High Water
(MHW) line, and.coastnl wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line nwy
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 3.63 %
9. How many drainage areas does the project have?2 (For high density, count 1 for each proposed engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
ims0in"' rmahon .:
Drama 'e Area ]"
';;Drama' e`Area 2;
bcama e Area _
Draina a Area,<i'
Receiving Stream Name
Perquimans
Perquimans
Stream Class *
B; Sw
B; Sw
Stream Index Number *
24
24
=r
Total Drainage Area (so
94960 2-I S,L
256132
On -site Drainage Area (so
94960
256132
Off -site Drainage Area (so
0
0
Proposed Impervious Area** (so
14245
39444
Impervious Area** total
15.0
15.5
fm erviousSurface Area A;
Drama'"e Area21„
Draina ekArea 2"�
;Drama e;A"rea -.
,Draina a Arear_a;
On -site Buildings/Lots (so
5565
1920
On -site Streets (sf)
8680
20305
On -site Parking (so
0
0
On -site Sidewalks (sf)
0
0
Other on -site (so
l ?D 0
8 /0 R3
' I°'
Future(so
0
17219
Off -site (so
0
0
Existing BUA*** (sf)
0
0
Total (so:
i3 5`es�
Stream Class and Index,Nuniber.cmi be determined at:: lit i2o.enr.state.iictis rots re orts re ortsWB.htnul
Form SWU-IOI . Version 07July2009 Page of

** huperm.ous area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
*** Report only that muount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation. N/A
Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 026.0600.
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 http://h2o.enr.state.nc.us/su/bmv forms.htm.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available from httv:/ /h2o.enr.state.nc.us/su/bmp forms htm. The complete application
package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating
project on the interactive online map at http://h2o.enr.state.nc.us/su/msi maps htm.)
Pleaseindicate that the following required information have been provided by initialing in the space provided for
each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for
each submitted application package from htlp://h2o.6nr.state.nc.us/su/bmp forms htm.
1. Original and one copy of the Stormwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http //www.envheII2.org/ pages/ onestopexpresshtml 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/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1/2
mile radius on the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
Initials
R
G
M MM
Form SWU-101 Version 07July2009 Page 4 of 6

m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify (50_
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x1l" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHWT prior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: Page No:
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC i
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H.1003(e). The
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
ht!p://www.secretary.state.nc.us/Corporations/CSearch.asRx
VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http://h2o.enr.state.nc.us/suibmp forms.htm#deed restrictions. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms Available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the NC DWQ and that they will be recorded prior to the sale of any lot.
Vill. 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:Ben Li0y, Mike Basineer or Scott Keblusek
Consulting Firm: Hankins & Anderson. Inc.
Mailing Address:4880 Sadler Road
City:Glen Allen State:VA Zip:23060
Phone: (804 ) 2854171 Fax: (804 ) 217-8529
Email:b.lilly®haengmeers.cm - or - [e-mail] - or - [e-mail]
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled ont, complete this
section)
1, (print or hype name of person listed in Contact Information, item 2a) TO k . A, GG vl certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1a) . with (print or h,/pe mmne of organization listed in
Contact Information, item 16) .4 .� • elop the project as currently proposed. A copy of
the lease agreement or pending roperty sales contrac has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SWU-101 Version 07July2009 Page 5 of

l
As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. 1 understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: _ Date: f
&V l"C—Ln a Notary Public for the State of County of
.µµ5 , do hereby certify that a6h h A - �Q1 personally appeared
before me this Bay of m101 0, and acknowledge the due a ution f the application for
a stormwater permit. Witness my hand and official seal,��C..LJ
SEAL
My commission expires "'10J6
X. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in Contact Information, item 2) J eD ^ A ' Geriy
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable stormwater rules under 15A NCAC 2H .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211.
Signature: / Date: r 7
r( 1 (I-) L rty1 a Notary Public f r the State of � - 1 County of
�Wla-:1 S , do hereby certify that �f% personally appeared
befo��re me this I( day of QF)1 Dan knowledge the du ecu o of the application for
a stormwater permit. Witness my hand and official seal, LES
SEAL
My commission expires O J
f orm SWU _101 : Version 07Ju1 2009.; Pa e 6 of,6

1 I -r> Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
November 17, 2008 (YN z 7 q
Harvey Point Defense Testing Activity �
Attn: Mr. Gary Sheeres
2835 Harvey Point Rd.
Hertford, NC 27944 '
Subject: 'Stormwater Permit No. SW7080717
PBI Expansion Project
Low Density Stormwater Project
Perquimans County
Dear Mr. Sheeres:
The Washington Regional Office received a completed Stormwater Management Permit Application
for the subject project on November 12, 2008. Staff review of the plans and specifications has
determined that the project, as proposed, will comply with the Stormwater Regulations set forth in
Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7080717 dated November 17, 2008 for
the construction of the subject project.
This permit shall be effective from the date of issuance until rescinded and shall be subject to the
conditions and limitations as specified therein, and does not supercede any other agency permit that
may be required.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right
to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, NC 27699-6714. Unless such demands are made this permit.shall be final and
binding.
If you have any questions, or need additional information concerning this matter, please contact either
Bill Moore, or me at [phone].
incerel ,
Al Hodge
Regional Supervisor
Surface Water Protection Section
cc: Hankins and Anderson
t�ashington Regional Office
Central Files
North Carolina Division of Water Quality Internet h2o.enr.state.nc.us
943 Washington Square Mall Phone: [phone]
Washington, NC 27889 FAX [phone]
An Equal OpportunitylAfinnative Action Employer— 50% Recyded110% Post Consumer Paper
Nne
orthCarolina

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
LOW DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules and Regulations
PERMISSION IS HEREBY GRANTED TO
Harvey Point Defense Testing Activity
PB1 Expansion Project
Perquimans County
FOR THE
construction, operation and maintenance of a low density development in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "storm water rules') and the approved
stormwater management plans and specifications, and other supporting data as attached and on file
with and approved by the Division of Water Quality and considered a part of this permit for the Harvey
Point, PBI Expansion project located off SR1336 near Hertford, NC.
The Permit shall be effective from the date of issuance until rescinded and shall be subject to the
following specific conditions and limitations:
I. DESIGN STANDARDS
The PBI Expansion project is located in an 85.07 drainage basin with 3.83 acres of existing
impervious area. New construction will add 2.79 acres of impervious area yielding a total built -
upon area of 6.62 acres.
The overall tract built -upon area percentage for the project must be maintained at, or below
30%, as required by Section .1005 of the stormwater rules.
3. Approved plans and specifications for projects covered by this permit are incorporated by
reference and are enforceable parts of the permit.
4. The only runoff conveyance systems allowed will be vegetated conveyances such as swales
with minimum side slopes of 3:1 (H:V) as defined in the stormwater rules and approved by the
Division.
5. No piping is allowed except that minimum amount necessary to direct runoff beneath an
impervious surface such as a road or to provide access.
6. Unless specified elsewhere, permanent seeding requirements for the swales must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and
Design Manual.
7. Roof drains must terminate at least 30 feet from the Mean High Water line.

II. SCHEDULE OF COMPLIANCE
Projects covered by this permit will maintain a minimum 30 foot wide vegetative buffer between
all impervious areas and surface waters.
2. The permittee is responsible for verifying that the proposed built -upon area does not exceed
the allowable built -upon area.
3. 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.
4. Prior to the subdivision and/or sale of this project, in whole or in part, the following deed
restrictions must be recorded with the Office of the Register of Deeds:
a. The following covenants are intended to ensure ongoing compliance with State
Stormwater Management Permit Number SW7080717, as issued by the Division of
Water Quality under NCAC 2H.1000.
b. The State of North Carolina is made a beneficiary of these covenants to the extent
necessary to maintain compliance with the Stormwater Management Permit.
C. These covenants are to run with the land and be binding on all persons and parties
claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded without the
express written consent of the State of North Carolina, Division of Water Quality.
e. Alteration of the drainage as shown on the approved plans may not take place without
the concurrence of the Division of Water Quality.
f. The maximum built -upon area for the PBI Expansion project is 6.62 acres. This allotted
amount includes any built -upon area constructed within the lot property boundaries, and
that portion of the right-of-way between the front lot line and the edge of the pavement.
Built -upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick,
stone, slate, but does not include raised, open wood decking, or the water surface of
swimming pools.
g. Construction of additional impervious areas such that low density requirements are no
longer met must be submitted to DWQ and a permit modification must be issued prior to
construction. An engineered system will be required to collect and.treat the runoff from
all built -upon area associated with the project, including that area permitted under the
low density option.
h. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with
this development, except for average driveway crossings, is strictly prohibited by any
persons.
i. A minimum 30 foot wide vegetated buffer area shall be provided between surface
waters and all impervious surfaces.

5. A copy of the recorded restrictions must be received in this Office within 30 days of the date of
sale.
6. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
permitted development, except for average driveway crossings, is strictly prohibited by any
persons.
7. Projects within CAMA's Area of Environmental Concern (AEC) are subject to a reduction of the
permitted amount of built -upon area due to CAMA jurisdiction within the AEC.
8. The permittee shall submit to the Director and shall have received approval for revised plans,
specifications, and calculations prior to construction, for any modification to the approved
plans, including, but not limited to, those listed below:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision, acquisition, or sale of the project area. The project area is defined
as all property owned by the permittee, for which Sedimentation and Erosion Control
Plan approval was sought.
f. Filling in, altering or piping any vegetative conveyance shown on the approved plan.
Swales and other vegetated conveyances shall be constructed in their entirety, vegetated, and
be operational for their intended use prior to the construction of any built -upon surface.
10. During construction, erosion shall be kept to a minimum and any eroded areas of the swales or
other vegetated conveyances will be repaired immediately.
11. The permittee shall at all times provide the operation and maintenance necessary to operate
the permitted stormwater management systems at optimum efficiency to include:
a. Inspections
b Sediment removal.
C. Mowing, and revegetating of the side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
12. Within 30 days of completion of the project, the permittee shall certify in writing that the project
has been constructed in accordance with the approved plans.
13. The permittee shall submit all information requested by the Director or his representative within
the time frame specified in the written information request.
III. GENERAL CONDITIONS
Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Water Quality, in accordance with North
Carolina General Statutes 143-215.6A to 143-215.6C.
2. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The filing of a
request for a permit modification, revocation and reissuance, or termination does not stay any
permit condition.

4. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws,
rules, and regulations contained in Title 15A of the North Carolina Administrative Code,
Subchapter 2H.1000; and North Carolina General Statute 143-215.1 et. al.
5. This permit is not transferable except after notice to and approval by the Director. The Director
may require modification or revocation and reissuance of the permit to change the name and
incorporate such other requirements as may be necessary. A formal permit request must be
submitted to the Division of Water Quality accompanied by the appropriate fee, documentation
from both parties involved, and other supporting materials as may be appropriate. The
approval of this request will be considered on its merits, and may or may not be approved. The
permittee is responsible for compliance with all permit conditions until the Director approves
the transfer.
6. The permittee grants permission to DENR Staff to enter the property for the purpose of
inspecting all components of the stormwater management facility.
7. The permittee shall notify the Division of any name, ownership or mailing address changes
within 30 days.
8. This project proposes the use of a wet detention basin to comply with local requirements. The
proposed wet detention basin will be reviewed and permitted through the local government.
9. 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) which have jurisdiction.
Permit issued this the 17 th day of November, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
AL- t-L7 -----------------------
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7080717

November 17, 2008
Director's Certification
For Coleen H. Sullins
Subject: Waiver of Deed Restrictions and Protective Covenants for Harvey
Point Defense Testing Facility
Stormwater Permit No. SW7080717
PBI Expansion Project
Perquimans County
As provided in the Director's Certification provisions of 15A NCAC
2H. I 003(d)(4), this letter waives the requirements for mandatory deed restrictions and
protective covenants contained in 15A NCAC 2H.1003(d)(1) and 2H. I 003(d)(2) for all
United States Department of Defense (DoD) facilities and installations located within
North Carolina. In lieu of these deed restrictions and protective covenants, DoD
installations and facilities affected by this Certification will be required to submit written
correspondence certifying that the Facility Master Plan will be appropriately modified to
ensure that the subject development will be maintained consistent with the plans and
specifications approved by the Division of Water Quality in the applicable permits.
CC: Al Hodge, WARO
Bradley Bennett, Stormwater Group

o,-"' . 7 2¢ 68
.....:
Date Received
Fee Paid
Permit Number
- Z- 08
1 Ste✓
080 71%
State of North Carolina Sw C < 7124-/8
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM xE"EE %"I_K•''
This form may be photocopied for use as an original
NOV _9 2 2008
I. GENERAL INFORMATION
Ia)lV,',.
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): -
Harvey Point Defense Testing Activity (HPDTA) U.S.Government
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Gary Sheers, Director
3. Mailing Address for person listed in item 2 above:
2835 Harvey Point Road
City:Hertford State:NC Zip:27944
Phone: (252 ) 4264240 Fax: (252 ) 426-4339
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
PBI Expansion at HPDTA
5. Location of Project (street address):
HPDTA Harvey Point Road
City:Hertford County:Perquimans Zip:27944
6. Directions to project (from nearest major intersection):
Proceed east on State Route 1336 (Harvey Point Road) from US Route 17 intersection, to the end of the public
road (front gate of HPDTA). Continue on Harvey Point Road (also named Towers Boulevard) 2.12 miles to
the PBI entrance on the left.
7. Latitude:36° 05' 58" N Longitude:76° 18' 42" W of project
8. Contact person who can answer questions about the project:
Name:Pam Klepec, Environmental Coordinator Telephone Number: (252 ) 426-4360
Email:[e-mail]
IL PERMIT INFORMATION:
FormSWU-101 Version09.25.08 Page Iof4

1. Specify whether project is (check one): ®New [-]Renewal ❑Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
®Low Density ❑High Density ❑Redevelop ❑General Permit []Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial
Stormwater
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Storm water will be treated by sheet flow over grass areas and low velocity grass lined swales. Narrative
2. Stormwater runoff from this project drains to the Pasquotank River basin.
3. Total Property Area: 85.07 (project) acres 4. Total'Eonstal Wetlands Area: 7.54 acres
5. Total Property Area (3) - Total Coastal Wetlands Area (4) = Total Project Area**:77.53 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA):8. %
7. How many drainage areas does the project have?2 Fi • 6 8 S %.8 %
8. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
For high densitv Proiects, complete the table with one drainage area for each engineered stormwater device.
BasinInformation .' '.
';-; '`DrainageAreal" .
,' ,, Drainage:Area'2 t
Receiving Stream Name
Perquimans River
Perquimans River
Stream Class & Index No.
SB 30-6-(7)
SB 30-6-(7)
Total Drainage Area (sf)
1,556,613 3S 73
2,885,131 66, 2 j
On -site Drainage Area (so
1,556,613
1,445,2173334e
Off -site Drainage Area (st)
0
1,439,918 33. 06
Existing Impervious* Area (sf)
2 Y2 127,362 1- i B
-4 128,026 S ¢
Proposed Impervious*Area (so
11,303 Z
1101291
% Impervious* Area (total)
8.91
8.26
Impervious* Surface Area
Drainage'Area`1-'
..Drainage Ar ea 2 ..,
On -site Buildings (so
17,493
13,083
On -site Streets (so
113,382
136,622
On -site Parking (so
7260
0
On -site Sidewalks (so
530
0
Other on -site (so
0
0
Off -site (so
0
88,612
Form SWU-101 Version 09.25.08 Page 2 of
trr� Sit¢ �KC5
B.6s/

Total (so: 138,665 238,317
" Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
*"Total project area shall be calculated to exclude Coastal Wetlands frmn use rvlten calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived?Cadd measurement of aerial and topographic
Projects in Union County: Contact the DWQ Central Office staffto check to see ifyou project is located
within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater
requirements.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following property restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
Listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm - deed restrictions.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded property restrictions and protective covenants for this
project shall include all the applicable items required in the above form, 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.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement fOrm(S) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater Permitting Unit at [phone] for the status and
availability of these forms. Forms can be downloaded from httl2://12o.enr.state.nc.us/suibmp forms.htm.
Form SW401-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW401-Infiltration Trench
Form SW401-Bioretention Cell
Form SW401-1-evel Spreader
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401-Sand Filter
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Form SWU-101 Version 09.25.08 Page 3 of

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at httn://h2o.enr.state.ne.us/su/msi maps.htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form /WXP
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if AW
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP A14
• Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm):Hankins & Anderson, Inc - Ben Lilly or Mike Basinger
Mailing Address:4880 Sadler Road, Suite 300
City:Glen Allen State:VA Zip:23060
Phone: [phone] Fax: [phone]
Email:b.lillv©haengineers.com - or - [e-mail]
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General In formation, item 2) Gant Stweres, Director HPDTA
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 15A
NCAC 21-1.1000.
Signature: Date: I t D
Form SWU-101—ersion 09.25.08 Page 4of4

STORMWATER MANAGEMENT NARRATIVE
Harvey Point Defense Testing Activity
PBI Expansion
July 8, 2008
Additional information added November 7, 2008
N;iF F;KZ, 1, Y, ET'1c
NW 1' 2 2008
Ult' ,O Int«,,RV
�. w 17 �j i"u 13„�
The purpose of this project is to provide a road network that will allow future development of small
parcels of property for purposes of defense testing. The first developed area will consist of two
warehouses. These are indicated on the drawings as (NIC) not in contract, but are expected to be
constructed during the construction of the road project.
The entire project is wooded with most of the surrounding property covered with wetlands. The
proposed road network and development parcels meander through the site, avoiding all wetlands.
The only utility serving the different testing sites will be electric. An overhead electric distribution line
will be used to provide minimal lighting. There will not be any water or sanitary involved with this
project.
Approximately 447,400 square feet (10.27 acres) of woods will be disturbed to construct the site as
shown on the drawings. Aggregate surface roads and pad combine for a total area o t9,9Y SS square
feet. Not in contract aggre ate at the two warehouses adds another 6,758 square feet for a grand total
of 103,716 square feet 2.38 acres) of aggregate The two warehouses have a combined square footage
of 10,400 square feet. The remainder of the disturbed site, 333,284 square (7.65 acres) feet will be
stabilized with vegetation. Of the disturbed area, 25.5 percent is impervious.
1%' 9S £3
17.�8
103 7 1 6 `
CZ..38
I v 317/4
10
The aggregate surface roads are 18 feet wide and have a 6 foot wide grass shoulder on each side. Grade / '6
slopes down from the shoulder at 5:1 to existing grade or to a 2 foot wide drainage ditch. From the
bottom of the ditch back up to existing grade the slope is at 3:1. Due to the very flat terrain, the ditch C,6�
slopes range from 1 percent to 0.2 percent. All ditches will receive permanent seeding as indicated in
the North Carolina Erosion and Sediment Control Planning and Design Manual, Table 6.11v, Seeding
Number 7CP. Ditches will also be protected with blanket matting that extends beyond the maximum
flow depth.
Water quality for this project is achieved by sheet flowing the runoff from the impervious areas across
grass shoulders and 5 1 grass slopes to Brass lined swales. The runoff velocity for the 10 year storm
flowing through the site ditches remains below 2 feet per second (reference drawing C-501). All of the
project runoff flows to one of two existing channels that traverse the site as it runs to the Perquimans
River. A new bridge crosses each of these channels. That crossing point marks the last entrance of new
runoff before entering the river. The Road A bridge crossing is approximately 600 feet from the river

and the Road C bridge crossing is approximately 250 feet from the river. An analysis of the two existing
channels (reference drawing C-501) indicates the 10 year storm flow increase at Road A is 0.6 US and at
Road C is 6.8 CFS due to the proposed development. The corresponding depth of flow increases 0.02
feet and 0.20 feet. Data provided on the referenced drawing indicates that the existing channels will
handle the 100 year storm with minimal impact.
Impact of runoff has been reduced by using an 18 foot wide gravel road in lieu of a 24 foot wide asphalt
road. Traffic will be minimal. Sheet flow from the road runs across a grass shoulder to a gentle 5 to 1
side slope to the 2 foot wide ditch channel. There are no steep slopes on site to create erosion
problems.
Additional Narrative added November 7, 2008
Project limits have been established on the north side of Towers Boulevard that indicate the extent of
property dedicated to the PBI facility. The total project area i 85.07 acre of which 7.54 acres is
wetlands, leaving 77.53 acres of total project area. Within this are 3.8287 acres is presently
impervious. New construction will add 2.7914 acres of impervious surface for a total impervious area of
6.62 acres. C6 62 acres / 77.53 acres = 8.5490 impervio
Grassed swales play a big part in storm water management for this project. Storm runoff from the roads
flows across a 6 foot wide grass shoulder, then down a 5 to 1 slope to a two foot wide grass swale.
Swales have longitudinal slopes ranging from 0.20 percent to 1.50 percent with the majority falling in
the 0.50 percent range. These swales provide a maximum flow rate of 3.0 feet per second (fps) for a 10
year storm flowing on a bare earth swale and a maximum flow rate of 1.78 fps for a 10 year storm on a
turf Swale.
Areas of concentrated development have drainage divides that distribute the runoff in numerous
directions so that the quantity to any area is minimal. Storm water management plan sheets have been
added to the drawings that more clearly depict items of concern and interest to the storm water
management reviewer.
The design of this project was based on two major factors; providing the client with a facility that meets
his unique demands and avoiding wetlands. The impact to the area is minimized by spreading out the
developed areas and not concentrating development runoff. This layout also serves the client well.

Hankins and Anderson
Consulting Engineers
November 11, 2008
Mr. William J. Moore
Environmental Engineer
North Carolina Department of Environment and Natural Resources
Division of Water Quality
943 Washington Square Mall
Washington, North Carolina 27889-3532 ECES+NZE-
Re: PBI Site Expansion NOV 1 L Md
Response to comments
H&A Project No. 5637.00
Dear Mr. Moore:
Below are our responses to comments from your letter dated October 15, 2008:
Comment #1: After reviewing USGS topo maps, it appears that the natural drainage
feature shown on Plan Sheet C-302 is actually a `blue line"stream. All impervious
areas (road crossings excluded), are required to maintain a minimum 30 foot
vegetated buffer.
Response #1: The impervious turn -around shown on sheet C302 has been moved so
that the impervious material is 30 feet from the blue line stream. Any disturbance
between the impervious material and blue line stream will be immediately seeded
and stabilized. There are no other impervious encroachments within 30 feet of the
blue line.
Comment #2.• An area of concern was identified at the termination of the drainage
outlet shown on C-302 (detailed on profile 7). In order to ensure non -erosive
velocities into the adjacent wetlands, a permanent energy dissipater or level spreader,
should be placed at the end of the swale. Provide appropriate design calculations,
supplement sheets and O&M agreements.
Response #2: A level spreader has been added to the outfall shown on sheet C302,
section cut #7. A detail for the level spreader has also been added to the plans. The
velocity at section #7 for a 10 year storm (in a turf swale) is 0.95 fps.
4880 Sadler Road, Suite 300
Glen Allen, Virginia 23060
804.285.4171
804.217.8529 Fax
www.haengineers.com

Mr. William J. Moore
November 11, 2008
Page 2
Comment #3: Revise drainage area 2 to exclude the portion of the drainage area
outside of the PBl Expansion project limits.
Response #3: The project limits and project drainage areas are both shown on sheet
C702. To reduce confusion as to what is the project limits that were used for
impervious cover calculations and the drainage divides, the sheet has been cleaned
up and the line weights adjusted. Calculations for percent of imperviousness do not
include the off -site drainage area.
Comment #4: The warehouse area (sheet C-302) and the gravel storage area (sheet C-
304) appear to have significant impervious areas and minimal storm water controls.
These areas may function as high density pockets of development and may require
additional storm water controls.
Response #4: A vegetated filter strip and grassed swale has been specified on sheet
C609 to address any concerns regarding the small pocket of high density
development. The area at the warehouses is split into four separate drainage areas,
reducing the impact for the individual segments and allowing more grass swale time.
Rip -Rap has been placed at the end of the "gravel work area" prior to discharge into
the "Blue Line Stream". The velocity of the 10 year storm (in a turf swale) is 1.36 fps
(see section #18). The "gravel work area" is crowned, sending half the runoff to the
southwest swale (Rip -Rap) at the end) and the other half to the existing northeast
swale.
Comment 115: These issues might best be resolved by an on -site visit with the
engineer and follow up discussions.
Response #5: We appreciate your time and effort in meeting onsite with Larry Willis
on October 22, 2008 to discuss your concerns regarding this project. We have tried
to address your concerns while maintaining the client's requirements. We have
added sheets (Storm Water Management Controls C-608 through C611) to the re -
submittal package that hopefully will clear up areas of confusion.
The re -submittal package includes;
• Stormwater Management Permit Application Form (latest revision)
• Stormwater Management Narrative (expanded)
• Grassed Swale Supplement forms (with O&M agreement)
• Level Spreader Supplement forms (with O&M agreement)
• Web Soil Data
• Drainage Calculations
• Two sets of drawings:
1. Vicinity Location Map; Cover Sheet T1

Mr. William J. Moore
November 11, 2008
Page 3
2. Grading & Drainage Plans; C301 through C304
3. Sections; C501, Showing Drainage Swales
4. Erosion & Sediment Control Plans; C601 through C607
5. Storm Water Management Plans; C608 through C611 (NEW)
6. Drainage Area (Project Area) Maps; C701 & C702
We hope the attached documents and revisions are satisfactory. Please feel free to
call us at any time should any questions arise.
Very truly yours,
HANKINS AND AN DERSON, INC.
Mike Basinger
Enclosures
C: Pam Klepec, Environmentalist, HPDTA
Larry J. Willis, P.E. — Hankins and Anderson, Inc.
File

t
Permit
(to be provided by DWO)
2QE W ATf9O
L_fLLr1
NCDENR � Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Pad III) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Site Characteristics
Drainage area
Impervious area
Percent impervious
Design rainfall depth
Peak Flow Calculations
10-yr storm runoff depth
10-yr storm intensity
Post -development 10-yr storm peak flow
Velocity
Maximum non -erosive velocity (peak 10-year storm)
Soil characteristics (enter "x" below)
Sand/silt (easily erodible)
Clay mix (erosion resistant)
Grass Type (enter "x" below)
Bermuda
Tall fescue
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
Maximum velocity
Side slopes
Swale length
Option 2: Conveyance Swale, Seekino Pollutant Credit:
Maximum velocity for 10-yr storm
Side slopes
Swale length
7 p.86j974t00fft2
0 N' IZ'o5 00]ftz
13.9% %
FV% ;; ''-" 1'061 inch
(?'646a]i in
'_4'04 in/hr
fT'ff4:';2.82Wd ft3/sec
6.00 ft/sec
or N)
or N)
lec
, ll>L$' �IE"p
NOV 1 2 20A
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWQ)
Swale Characteristics
Swale Shape: Enter an Y in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the swale
Width of the top of the Swale
Additional Information
Is the swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
M-2:'007 ft
.512=20fZ04ft
xN (Y or N)
2.73 it
Insufficient sizing
Insufficient ROW location.
M
M
OK
Form SW401-Grassed Swale-Rev.3
Parts I and II. ProjecA Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWO)
_ 020E WAT,919
NCDENR Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must also be filled out, printed and submitted along with all of the required information.
Contact name
Phone number
Date
Drainage area number
I 1 ".9 DES10%?L F�ORMALLON ,' �5' :;T r�Lmll
Site Characteristics
Drainage area 105
Impervious area 15i0 t6olft1
Percent impervious 13.5% %
Design rainfall depth W_&N ",>i.'„-`'?�1 1.0, inch
Peak Flow Calculations
10-yr storm runoff depth
10-yr storm intensity
Post -development 10-yr storm peak flow
Velocity
Maximum non -erosive velocity (peak 10-year storm)
Soil characteristics (enter "x' below)
Sand/silt (easily erodible)
Clay mix (erosion resistant)
Grass Type (enter'x" below)
Bermuda
Tall fescue
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
Maximum velocity
Side slopes
Swale length
Ootion 2: Convevance Swale. Seekino Pollutant Credit:
Maximum velocity for 10-yr storm
Side slopes
Swale length
in
in/hr
ft3/sec
6.00 ftlsec
N)
N)
Nov 1 2 2008
'� r tr G �r , a 1 •..
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3 Parts I and IL Project Design Summary. Page 1 of 2

Swale Characteristics
Permit Number.
(to be provided by DWQ)
Swale Shape: Enter an Y in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the swale
Width of the top of the Swale
Additional Information
Is the Swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the Swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the swale?
What is the SHWT elevation?
What is the longitudinal slope of the Swale?
What is the depth of freeboard?
" . E (Y or N)
y}� �kNI(YorN)
Insufficient sizing
Insufficient ROW location.
LOI
[on
M
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary. Page 2 of 2

Permit Number.
(to be provided by DWD)
OF W ATF9
�MAE
NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM o�
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part lll) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
IIDESIGfV(INFtORMA'TION ���x`.F .: - � ``, "� ._ ::. � �c`Z..�"u�`1�"'�F'i�•�'��--`` : a';�w� .,. �..� ,c`.� ., ��?:� .sl�s
Site Characteristics
Drainage area
34,83.0110 fix
Impervious area
z_.^v7;538:00(ft2
Percent impervious
21.6% %
Design rainfall depth
;-,+"�". "s^,"1.60,inch
Peak Flow Calculations
10-yrstorm runoff depth
rf iS:00 `akin
10- stone intensi
Y< ty
(' h �- :T,-'.00�r" i = in01r
Post -development 10-yr storm peak flow
F 2'5 3ILTAff"Isec
Velocity
Maximum non -erosive velocity (peak 10-year storm)
6.00 ft/sec
Soil characteristics (enter "x" below)
Sand/silt (easily erodible)
��?4+u�i17
Clay ma (erosion resistant)
Grass Type (enter "x" below)
Bermuda
Tall fescue`
°
Bahiagrass?,.
Kentucky bluegrass
4& '-
Grass -legume mixture
j<`•
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:,,MN;
(Y or N)
Maximum velocity
. a y •_;
#��Side
slopes
1
Swale length
19-El, ft
Option 2: Conveyance Swale, Seeking Pollutant Credit:
(Y or N)
Maximum velocity for 10-yr storm
Aft/sec
Side slopes
L3.00:1
Swale length
a- 't200'00 Mft
OK
Insufficient side slopes. Max is 5:1.
OK
Forth SW401-Grassed Swale-Rev.3
Parts I and B. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWO)
Swale Characteristics
Swale Shape: Enter an "x' in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the Swale
Width of the top of the Swale
Additional Information
Is the Swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the Swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the Swale?
What is the SHWT elevation?
What is the longitudinal slope of the Swale?
What is the depth of freeboard?
(Y or N) Insufficient sizing
(Y or N) Insufficient ROW location.
�iyl
(y
Insufficient freeboard.
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWQ)
o2pF W A rF,q
AMA
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Site Characteristics
Drainage area
Impervious area
Percent impervious
Design rainfall depth
Peak Flow Calculations
10-yr storm runoff depth
10-yr storm intensity
Post -development 10-yr storm peak flow
Velocity
Maximum non -erosive velocity (peak 10-year storm)
Soil characteristics (enter Y below)
Sand/silt (easily erodible)
Clay mix (erosion resistant)
Grass Type (enter "x' below)
Bermuda
Tall fescue
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
Maximum velocity
Side slopes
Swale length
Option 2: Conveyance Swale. Seeking Pollutant Credit:
Maximum velocity for 10-yr storm
Side slopes
Swale length
3800) fe
64'AOjfe
3.2% %
'061 inch
in
: urU' 470+ 4inmr
jft3/sec
6.00 ft/sec
N)
N)
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3
Parts I and 11. Project Design Summary, Page 1 or 2

Permit Number:
(to be provided by DWQ)
Swale Characteristics
Swale Shape: Enter an "x' in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the Swale
Width of the top of the swale
Additional Information
Is the Swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the Swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
(Y or N) Insufficient sizing
(Y or N) Insufficient ROW location.
Kxilr�l=s
MI
OK
Forth SW401-Grassed Swale-Rev.3 Parts I and H. Project Design Summary. Page 2 of 2

Permit Number.
(to be provided by DWQ)
OF WA I-f;,?
NCDENR'
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Site Characteristics
Drainage area
"7PH8 7o7?00 fe
Impervious area
rk�_ f414;464!00W
Percent impervious
7.6% %
Design rainfall depth
inch
inch
Peak Flow Calculations
10-yr stone runoff depth
kWZ,10'OO al in
1 0-yr storm intensity
6 6`:30 ,7,�4inthr
Post -development 10-yr storm peak flow
w'.` 4'80 ft3/sec
Velocity
Maximum non -erosive velocity (peak 10-year storm)
6.00 f lsec
Soil characteristics (enter "x" below)
Sandisilt (easily erodible)
•' - ' a 'Y
Clay mix (erosion resistant)
yW_ X ,7 ", _ _
Grass Type (enter "x" below)
Bermuda
s_,<X '�I
Tall fescue"
.
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
P;�;ri
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
; N?' N (Y or N)
Maximum velocity
Side slopes
'u A
Swale length
a*Y=-'t1ft
Option 2: Conveyance Swale, Seeking Pollutant Credit:
, =Y (Y or N)
Maximum velocity for 10-yr storm^r;1�18�
! =y ft/sec
Side slopes
500 :1
Swale length
530A0M it
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary, Page 1 of 2

(to be provided by DWQ)
Swale Characteristics
Swale Shape: Enter an Y in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the swale
Width of the top of the swale
Additional Information
Is the Swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
.M IE
�J"�s, ro614ENft
8 5645=ft
(Y or N) Insufficient sizing
(Y orN) Insufficient ROW location.
W
1613
[OK
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary, Page 2 of 2

Permit Number:
(to be provided by DWO)
o�op W A TFq
So"A
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
II. DESIGN!INFzORMATION �+I�f-'`�• `s wy
Site Characteristics
Drainage area ::aia: 57&4g7,:00 ff
Impervious area 4(890.00iit'
Percent impervious
Design rainfall depth
Peak Flow Calculations
10-yr storm runoff depth
10-yr storm intensity
Post -development 10-yr stonn peak flow
Velocity
Maximum non -erosive velocity (peak 10-year storm)
Soil characteristics (enter "x" below)
Sand/silt (easily erodible)
Clay mix (erosion resistant)
Grass Type (enter Y below)
Bermuda
Tall fescue
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
Maximum velocity
Side slopes
Swale length
ODtion 2: Conveyance Swale. Seeking Pollutant Credit:
Maximum velocity for 10-yr storm
Side slopes
Swale length
6.2% %
_;" -" y"ryf'"y:Vbbj inch
, 4,, r
�9.00';�•ti� in
sMII
WP76+14`' :,0ft3/sec
6.00 fit/sec
N)
N)
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3 Parts I and II. Project Design Summary, Page 1 of 2

Permit Number:
(to be provided by DWD)
Swale Characteristics
Swale Shape: Enter an Y in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the swale
Width of the top of the swale
Additional Information
Is the swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the Swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
IN , k$'
Y::
t
c ..,i
MM-44
� MOOOMFft
v-'.xi" . u` v7 ft
=sue;Y€(YorN)
r (YorN)
1.82 it
Insufficient sizing
Insufficient ROW location.
OK
Mil
Form SW401-Grassed Swale-Rev.3
Parts I and II. Project Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWQ)
02OFW A 7FH
MA
NCDENR W
�Y STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone -number
Date
Drainage area number
I.r '`Y:+"c
L DESIGN INF�ORMATION��, -
Site Characteristics
Drainage area "' T4
Impervious area & 6,9300fe
Percent impervious 6.7% %
Design rainfall depth ` 100)Inch
Peak Flow Calculations
1 0-yr storm runoff depth V" ,1,P40 tin
10- storm intensity "'�'rr7,,bdf inmr
n b _
Post -development 10-yr storm peak flow �?i0 76 . ft3/sec
Velocity
Maximum non -erosive velocity (peak 10-year storm)
Soil characteristics (enter Y below)
Sand/silt (easily erodible)
Clay mix (erosion resistant)
Grass Type (enter Y below)
Bermuda
Tall fescue
Bahiagrass
Kentucky bluegrass
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
Maximum velocity
Side slopes
Swale length
Option 2: Convevance Swale. Seekino Pollutant Credit:
Maximum velocity for 10-yr stone
Side slopes
Swale length
6.00 ft/sec
N)
W1
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3
Parts I and II. Project Design Summary, Page 1 of 2

Permit Number.
(to be provided by DWO)
Swale Characteristics
Swale Shape: Enter an "x' in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the Swale
Width of the top of the Swale
Additional Information
Is the Swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the Swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
i�x> X ,
2;0O;ft
',•11,4 ft
Fy s Ya(YorN)
N (Y or N)
1.85 It
Insufficient sizing
Insufficient ROW location.
[oil
M
OK
Form SW401-Grassed Swale-Rev.3
Parts I and II. Project Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWO)
` 020( V �G
Aw
N bENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
GRASSED SWALE SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must also be filled out, printed and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
IIDESIGNSINF,,ORMAIQNI� �. z�°u"a4 .: A'%. e'A
Site Characteristics
Drainage area
F . t. r 211863 0 ff?
Impervious
P
+ `,
;x;14�f1z
Percent impervious
64.7% %
Design rainfall depth
`=1C00]inch
Peak Flow Calculations
10-yr storm runoff depth
; 8:00 J in
10-yr stone intensity
a 47 601 LrJ4 in/hr
Post -development 10-yr storm peak flow
� 11r 1T67e Jft3/sec
Velocity
Maximum non -erosive velocity (peak 10-year storm)
6.00 ft/sec
Soil characteristics (enter Y below)
Sand/silt (easily erodible)
ash.',
Clay mix (erosion resistant)'
A X?
Grass Type (enter Y below)
Bermuda
sX_
Tall fescue
s
Bahiagrass
Kentucky bluegrassa'
Grass -legume mixture
Swale type: Fill out one of the options below:
Option 1: Curb Outlet Swale:
,N c ' (Y or N)
Maximum velocity
&g 21 g,
Side slopes
A
Swale length.2ft
Option 2: Conveyance Swale, Seeking Pollutant Credit
(Y or N)
Maximum velocity for 10-yr storm
f1/sec
Side slopes5.00
:1
Swale length
300 bynjIt
Insufficient maximum velocity.
OK
OK
Form SW401-Grassed Swale-Rev.3
Parts I and II. Project Design Summary, Page 1 of 2

Permit Number.
(to be provided by DWO)
Swale Characteristics
Swale Shape: Enter an Y' in the appropriate cell below:
Trapezoidal
Parabolic
V-shaped
Width of the bottom of the swale
Width of the top of the swale
Additional Information
Is the swale sized for all runoff from ultimate build -out?
Is the BMP located in a proposed drainage easement with a
recorded access easement to a public Right of Way (ROW)?
What is the distance from the bottom of the Swale to the SHWT?
What is the ground level elevation?
What is the elevation of the bottom of the Swale?
What is the SHWT elevation?
What is the longitudinal slope of the swale?
What is the depth of freeboard?
OM
'MM00' .'eft
' '7'44 U - .it ft
� or Y;, N) c a.x3..e
4...., isy�.(YorN)
Insufficient sizing
Insufficient ROW location.
ro79
d
M
Forth SW401-Grassed Swale-Rev.3
Parts I and II. Project Design Summary, Page 2 of 2

Permit No:
(to be assigned by DWQ)
III ,R LOUIREStCHECI('_LISTAl
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package
will result in a request for additional information. This will delay final review and approval of the project. Initial in the space
provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial
below. If a requirement has not been met, attach justification.
Initials Page/Plan
Sheet No.
�� 1. Plans (1" = 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
G 009P - Delineated drainage basins (include Rational C coefficient per basin),
- Swale dimensions (width, length, depth),
G 702 - Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Grass species, and
- Boundaries of drainage easement.
/ %%%/� 4:"a ^ 2. Plan details (1" = 50' or larger) for the grassed swale shoving:
«45-77 - Swale dimensions (width, length, depth),
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Design at ultimate build -out,
Grass species,
Off -site drainage (if applicable),and
Boundaries of drainage easement.
/V20_ 3. Section view of the grassed swale (1" = 20' or larger) showing:
- Side slopes,
- Longitudinal slope,
- Freeboard
- Swale dimensions, and
- SHWT level(s)
4. Supporting calculations (including maximum velocity calculations for applicable storms)
.PAeAe.
5. A copy of the signed and notarized operation and maintenance (0&M) agreement.
6. A copy of the deed restrictions (if required).
SW401-Grassed Swale-Rev.3 Part III, Page 1 of 1

Permit Name:
(to be provided by DWQ)
Drainage Area Number:
Grassed Swale Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area of the grassed swale will be carefully managed to reduce the
sediment load to the grassed swale.
— After the first-time fertilization to establish the grass in the swale, fertilizer will
not be applied to the grassed swale.
The grassed swale will be inspected once a quarter. 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 length of the
Trash/debris is present.
Remove the trash/debris.
swale
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then re -sod
(or plant with other appropriate
species) and water until established.
Provide lime and a one-time
fertilizer application.
Sediment covers the grass at
Remove sediment and dispose in an
the bottom of the swale.
area that will not impact streams or
BMPs. Re -sod if necessary.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW401-Grassed Swale O&M-Rev.3 Page 1 of 2

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 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:
BMP drainage area number: Sections; 2, 4, 7, 10, 11, 13, 15, & 18
Print
Title:Director of HPDTA
Address:2835 Harvey Point Road, Hertford, NC 27944
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
County ofdo hereby certify that
(-1 ark W . 's he.2ve S personally appeared before me this 12
day of XW rn be e , moo, , and acknowledge the due execution of the
forgoing grassed swale maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires') w
Form SW40 I -Grassed Swale O&M-Rev.3 Page 2 of 2

®Sq�� 02 pWAipgoG
NGDENR
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)!
1.11PR6JECTONFORMATION,
Project name .HPDTA PBI Expansion
Contact name 'Pam Klepec, HPDTA Environmental Coordinator- Mike Basinger, Hankins 8 Anderson
Phone number '252d26-4360 , 804285.4171 !
Date
Drainage area number
IIDESIGNjINFORMATION . d--
u ,
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown Flow from the BMP i iCIS
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
34,830.00
liftz
Impervious surface area
7,538.00
1 ftz
Percent impervious
21.64
%
Rational C coefficient
0.38
'CIS
Peak Flow from the 1 inmr storm
0.30
Time of concentration
5.00
! min
Rainfall intensity, 10-yr storm
7.851inmr
Peak Flow from the 10-yr storm
2.39
cis
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? r V N —1 (Y or N)
To a mulched bioretention cell? I N (Y or N)
To a wetland? Y [(Y or N) Please complete filter strip characterization below.
To a filter strip or riparian buffer? i N I(Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
5.00
-ift
Width of dense ground cover
10.00
- Ifl
Width of wooded vegetation
40.00
(ft
Total width
i 55.00
ift
Elevation at downslope base of level lip
1 6.00
1nnsl
Elevation at top of bank of the receiving water
5.00
Ifinnisl
Slope (from level lip to to lop of bank)
1.82
% OK
Are any draws present?
j N
?(Y or N) OK
Level Spreader Design
Forebay surface area
! 30.00
isq It OK
Feet of level lip needed per cfs
51
fucfs
Answer "Y* to one of the following:
Length based on the 1 inthr storm?
N
�(Y or N)
Length based on the 10-yr storm?
Y
t(Y or N)
Length based on the BMP discharge rate?
N
"'(Y or N)
Design Flow
0.30
'.ds
Is a bypass device provided?
N
(Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Butter-Rev.5 Parts 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 wetland?
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
i 130'00 ft Level spreader length OK.
N ;(YorN)
N ' (Y or N) Do not complete this section of the worksheel.
I (Y or N) Do not complete this section of the worksheet.
Do not complete this sedan of the woe sheet.
t
ft Do not complete this section of the worksheet.
i 'ft Do not complete this section of the worksheet.
.ft Do nol complete this section of the woesheei.
ft Do not complete this sermon of the worksheet.
cfS Do not complete this section of the work=_herei.
Do not complete this section of the worksheet.
0
I---------- Y __________�
M M
1 B 1
Form SW401-Level Spreader, Fitter 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.
IMB C-609 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 (ROVE, and
- Boundaries of drainage easement.
IMB C-609 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.
IMB C-607 3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
NA 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
IMB C-605 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
IMB Calc Book 6. The supporting calculations.
7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
NA 8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1

Permit Number:
(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 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:
— 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 remediate 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)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale 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 level 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).
approximately 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.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:HPDTA PBI Expansion
BMP drainage area number:
Print
Title:Director of HPDTA
Address:2835 Harvey Point Road, Hertford, NC 27944
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, I/i orajj k4m C4'-) , a Notary Public for the State of
%V 1 . County of / Cyr 'in _, do hereby certify that
C CLY-q ICJ �r P� c 5 personally appeared before me this
day of 4y,C rYt be_- , 26o 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
My commission expired d (IU 114 �l0
Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

O�0F W Allf; y Michael F. Easley, Governor
f7 y William G. Ross Jr., Secretary
r North Carolina Department of Environment and Natural Resources
> i
O Y Coleen H. Sullins, Director
Division of Water Quality
October 15, 2008
Harvey Point Defense Testing Activity
Attn: Mr. Gary Sheeres
2835 Harvey Point Road
Hertford, NC 27944
Subject: Stormwater Review SW7080717
PBI Expansion Project
Perquimans County
Dear Mr. Sheeres:
This office received a Coastal Stormwater permit application for the subject project on July 24, 2008. A
preliminary review of your project indicates that before a State Stormwater permit can be issued, the following
additional information is needed:
1. After reviewing USGS topo maps, it appears that the natural drainage feature shown on Plan Sheet
C-302 is actually a "blue line" stream. All impervious areas (road crossings excluded), are
required to maintain a minimum 30 ft vegetated buffer.
2. An area of concern was identified at the termination of the drainage outlet shown on C-302 (detailed
on profile 7). In order to ensure non -erosive velocities into the adjacent wetlands, a permanent
energy dissipater, or level spreader, should be placed at the end of the swale. Provide
appropriate design calculations, supplement sheets and 08M agreements.
3. Revise drainage area 2 to exclude the portion of the drainage area outside of the PBI Expansion
project limits.
4. The warehouse area (sheet C302) and the gravel storage area (sheet C-304) appear to have
significant impervious areas and minimal stormwater controls. These areas may function as high
density pockets of development and my require additional stormwater controls.
5. These issues might best be resolved by an on -site visit with the engineer and follow-up discussions.
The above requested information must be submitted to this office prior to November 17, 2008, or your
application will be returned as incomplete. The return of this project will necessitate resubmittal of all required
items including a new application fee. If you need additional time to complete the application package, please mail
or fax your request to this office and include any reason(s) for the time delays.
You should also be aware that the Stormwater Rules require that the permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina
General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day.
If you have questions, please feel free to contact me at [phone], or you can
blll.moore(pncmail.net.
Sincere) ,
Illiam J. Moore ��—
Environmental Engineer
Washington Regional Office
oc: Hankins & Anderson Engineers
Washington Regional Office
send a message to:
North Carolina Division of Water Quality Internet: www.newateruualitvorg One
943 Washington Square Mall Phone [phone] NorthCarolina
Washington, NC 27889 Fax [phone] a'a&ra //ff

m

Web Soil Survey Page 1 of 2
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Soil Features
this table gives estimates of various sell features. The estimates are used In land use planning that Involves engineering canslderationf.
A reslMNve layer Is a nearly continuous layer that has one or more physical, cremkal, or Mard l Pkx1HJn that S1,11f candy Impede the movement of water ark air through the Sall or that restrict roots or
otherwise provide an unfavorable root environment Examples are barrack, Demented layers, dense layers, and frozen layers. The table Indicates the hardness and thickness of the restrictive layer, both of which
Significantly affect the ease of excavation. Depth to top is the vertical distance from the sail surface to the upper boundary of the restiktne layer.
SubsldmDe Is the settlement of organic polls or of saturated mineral sells of very low density. Subsidence generally results from either desuccatlon and shrinkage, or oxidation of organic material, or both,
follosyng drainage. Sutelence takes place gradually, usually over a period of Several years. The table shows the expected Initial subsidence, which usually Is a result of drelnage, and total subsidence, which
results "in a combination of factors.
Rofe"Val fairdnitaction is the likelihood of upward of lateral expansion of the soil caused by the formation of segregated Ice lenses (host heave) and the subsequent collapse of the soil and loss of strength on
mowing. Frost action ocmn when moisture moves Into the freezing zone of the soil. Temperature, texture, density, saturated hydraulic conductivity (Ksat), content of organic matter, and depth to the water
table arc the most Important ftctom considered In evaluating the potential for host action. It Is assumed that the Sell Is Trot Insulated by ve,daillon or snow and Is not artificially drained. Silty and highly
structured, clayey sells that have a high water table In winter are the most susceptible to mist action. Well drained, very gravelly, or very Sandy sells are the least susceptible. Frost heave and low soil strength
during drawing cause damage to pavements and other rigid structures.
Risk a/cgrapbn zhurns to potential soil-mouced elextrochemlcal or chemical action test mrrWes or weakens unmated steel or concrete. The rate of corrosion of uncoated steel N related to such factors as Boll
moisture, particle'size dlsMbuuon, atldity, and electrical conductivity of the soil. The rate of corrosion of concrete Is baud mainly on the sulfate and sodium content, texture, moisture content, and teddy of the
soil. Special site examination and design may be needed If the combination of factors results In a severe bazaar of colorl.n. The steel or concrete In Installations the, Intersect soil boundaries or soil layers Is
http://websoilsurvey.nres.usda.gov/app/WebSoilSurvey.aspx 6/24/2008

Web Soil Survey Page 2 of 2
more wsceptltile to cormibn than the steel or concrete In Installations Nat are entirely within one kind of sell or within one sell Ill.
for uncoalM steel, [tie rhk of corrosion, expressed as low, moderate, or hhh, Is hued on soil dralme, class, total ace lty, electrical reslRMty near field capacity, and elattrlral conductivity of the saturation
extract.
For:clete the rbk of co edon alw Is expressed as low, moderate, or h1oh. It is based on soli texture, acidity, and amount of sulfates In the saturation extract.
FOIR I Accesslblu, Statement I Poyaq Polley I Non-DUHmmatIon Statement I Information Quallry I USn.poy I White House
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Page 1 of 2
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Soil Map
WKi®®7-71MOM w SE, no, DSWIC) jSr
— RUSLE2 Related Attributes
Perqulmans County, North Carolina
Map symbol and soil name
Pct. of
Hydrologic group
map_
unit _
IRo—Roanoke silt loam
i Roanoke drained
80, D
Roanoke, undrained 10 D
P,riA661e.VePslonl
C
,e l
Kf T factor I Representative valueO
%Sandi %Silt ..%Clay
.43 5 27.1` 54.4 18.51
.43 5 27.1, 54.4 18.5
http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx
6/24/2008

-11
Web Soil Survey
Page 2 of 2
UD—Udorthents, loamy
Udorthents, loamy 95 B .37 5 ( 43.2 ( 38.8 18.0
RUSLE2 Related Attributes
This report summarizes those soil attributes used by the Revised Universal Soil Loss Equation Version 2 (RUSLE2) for the map
units In the selected area. The report includes the map unit symbol, the component name, and the percent of the component
in the map unit. Soil property data for each map unit component include the hydrologic soil group, erosion factors Kf for the
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Perqulmans County North Carolina 0
Map unit symbol and soil rDepthl USDA texture I Classification Fragments I Percentage passing I Liquid Plasticity
name j _ e n mb — I limit Index
alev u er
Unified AASHTC >10 3 10 4 I 10 40 : 200 i
Iinches i inches
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Ro—Roanoke silt loam 1 I I I I
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Web Soil Survey
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Roanoke, drained i 0 8 Loam fine CL CL 'A-4, I 0
sandy loam, 1, A-6
L silt loam
Roanoke, undralned
813 'Clay loam,
ICL 'A-7-6,
0
silty clay
A-6
loam
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CH, CL A-7-6
i 0
58 . clay, silty
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loam
.. _....__
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MIL, CH A-2-4,
1 0
80 loam,
SC CL A-6,
I
I ' stratified
sand to clay
ML CL - A-4,
SM A-7-6
I
0-6 TLoam, fine
CL-ML, A-4
0 I
sandy loam,
CLA-6
I
silt loam
i 8-13 1 Clay loam,
CL A-6,
0
silty clay
, A-7-6
�, loam
13 ;Clay, s8ty
CH CL !A-7-6
0
_-1
58 clay, clay
i
'loam, sandy
UD—Udorthents, loamy
j Udorthents, loamy
i
clay
0
0
0
0
0
58- 1 Stratified
ML, CH,
A-4,
1 0
0
80 sand to clay,
SC CL,
I
A 7 6,
fine sandy
SM CL-
- A-2,
loam
ML
A-6
080:Loam sandy
I(
ISC-SM
l
A -a, I
0 01
clay loam
( CL, CL
A-7-6 i
1
fine sandy
ML, SC
A-2-4,
loam, sandy
'
A-6 i
loam, silt
oam
i
i
94 89 I75 52-
100: 100 1 100' 86
94 89 174 56
100 100 98 79
95- 90-1 71- 60-
100 j 100 1 100 92
20-35 5 16
35 45 14-20
45-70 ! 22-40
91- � 82 ! 66- - 25- 1 10-60 . NP-40
100 100 100. 76 i
i
94- 89- 75- : 62- 1 20-35 5-16
100 1100 100 86
94- : 89- 74- 56- ' 35-45 1 14-20
100 100 98 i 79
i
95- 190 71 ! 60- 45-70 22-40
100 100 too 92 ( I
91- 1 82 68 25 10 60 1 NP-40
100 1100 1001 76 ,
i
I
95- 90 70- 30 20-45 4-25
100. 1001 98 90
Engineering Properties
This table gives the engineering classifications and the range of engineering properties for the layers of each soil In the survey area
Depth to the upper and lower boundaries of each layer is Indicated.
Texture Is given in the standard terms used by the U.S. Department of Agriculture. These terms are defined according to percentages
of sand, silt, and clay in the fraction of the soil that is less than 2 millimeters in diameter. "Loam," for example, is soil that Is 7 to 27
percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content of particles coarser Chan sand is 15 percent or more,
an appropriate modifier Is added, for example, "gravelly."
Classification of the soils is determined according to the Unified soil classification system (ASTM, 2005) and the system adopted by the
American Association of State Highway and Transportation Officials (AASHTO, 2004).
The Unified system classifies soils according to properties that affect their use as construction material. Soils are classified according to
particle -size distribution of the fraction less than 3 inches In diameter and according to plasticity index, liquid limit, and organic matter
content. Sandy and gravelly soils are Identified as GW, GP, GM, GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH,
http://websoilsurvey.nres.usda.gov/app/WebSoilSurvey.aspx 6/24/2008

Web Soil Survey
Page 3 of 3
and OH; and highly organic soils as PT. Soils exhibiting engineering properties of two groups can have a dual classification, for
example, CL-ML.
The AASHTO system classifies soils according to those properties that affect roadway construction and maintenance. In this system,
the fraction of a mineral soil that Is less than 3 Inches in diameter Is classified in one of seven groups from A-1 through A-7 on the
basis of particle -size distribution, liquid limit, and plasticity Index. Soils in group A-1 are coarse grained and low In content of fines (silt
and clay). At the other extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group A-8 on the basis of
visual inspection.
If laboratory data are available, the A-1, A-2, and A-7 groups are further classified as A -I. -a, A-1-b, A-2-4, A-2-5, A-2-6, A-2-7, A-7-5,
or A-7-6. As an additional refinement, the suitability of a soil as subgrade material can be indicated by a group Index number. Group
Index numbers range from 0 for the best subgrade material to 20 or higher for the poorest.
Rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter are indicated as a percentage of the total soil on a
dry -weight basis. The percentages are estimates determined mainly by converting volume percentage In the field to weight
percentage.
Percentage (of soil particles) passing designated sieves is the percentage of the soil fraction less than 3 Inches In diameter based on
an ovendry weight. The sieves, numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00, 0.420, and 0.074
millimeters, respectively. Estimates are based on laboratory tests of soils sampled in the survey area and in nearby areas and on
estimates made in the field.
Liquid limit and plasticity Index (Atterberg limits) indicate the plasticity characteristics of a soil. The estimates are based on test data
from the survey area or from nearby areas and on field examination.
References:
American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation
materials and methods of sampling and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard
FOIA I Accessibility Statement I Privacy Policy I Non -Discrimination Statement I Information Quality I USA.gov I white House
http://websoilsurvey.nres.usda.gov/app/WebSoilSurvey.aspx 6/24/2008

Web Soil Survey
I.n.,3U• I PmxNoe,I Sou. Det.' 4NIrtO Sell 5urreYt I Vrel•r•,xt• i see... Xe10
Soil Data Explorer
View Sea lnbrmallon 9y Use: NUses
Soil Reports
0
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•DI Imentory
BUIRIng Site O dkdpmeot
0
Constrvaron Maternal,
0
Land Classl&atlons
0
Land Nane9ement
0
Rec¢ational Development
0
Sanitary Facilities
0
Sell CnemKnl Properties
Soll Erosion
0
Soil Phy.lul Properties
0
En9lnttrin9 Pmpertles
Physical Soil Properties
yl.w oe.elwlwl vl.w xR Rsw,t
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Sells
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0
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Soil Reporta
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Perciuireane County, North Carolina
PleP.,mbar and roll name
DePN Send
SIR 'CY,
..I. Sr,... WKydr.ull.
Aralbale
.,nor extentl6111p
disease
erosion
lectors'
wind arodielnti,
wled.l.dlenlly
bulk
wndu.tilhir
at.,
m.tear !
group
Index
dmtlry
capacitor
Kw
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sled
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I
_
IRo—Roanoke slit loam
Roanoke, drained
0-0 —
— to-
1.20.
4.00-14.00
0.1e-0.20
0.0-2.9
0.5-2.0
.43 '
AJ
5 l
5
56
23
1.50
1.30-
OA2-1.e0
0.16.0.19
3.0-5.9
0.0.0.5
.]]
.33
JS
I.So
13-50 I.. —_
— JS-
1.15
0.42-1.40
0.10-0.19
3.0-5.9
0.0-0.5
.24
.20
60
1.65
*0
I-
50
-
3
0
_
1a 1.00
0.0_4 -0.1d
3.0.5.9
_ 0.0-0.5 _I
.Ia
.24r
Roanoke, untrained
0-B —
— 10.
1.20-
4.00.1e.00
O.1b0.20
0.0 2.9
0.5-2.0
.43
A3
5
5
56
http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx
6/24/2008

Web Soil Survey
Page 2 of 2
2)
150
813
20-
16U
1 Oax 110 016039
305.9
0005
U
1
35
i.3)
1358i
I 35
I35
04140 t g3o 019 1
J059
00 a 5'.N1
24j
SB BOj
60
165
19U
00114100 OUao14
3059
�o005I.2a
N
I550
•_
__
,__ i
_ _....
TD--jdamarta, loamy
udorMaWitenWit---- 0-80
— ' - T-2)1
1.30- chi
1.65
r
0.01-La.00 a ID O 1)
3.0 s.9
i
o 0 1.0
.R I Colo 5
s _ 56
physical Soil properties
The table sham astlmates of some physical tllaracterlstics and oaturcs that affect soil behaylor. These estimaln art given far the layers of each soil In the Survey area. The estimates ere based on field
observations and on lest data for these and similar soils.
Depth to the upper and lower boundaries of each layer Is Indicated.
PArtll]e size ISthe effective diameter of a sell particle as measured by Sedimentation, sieving, or micameMc methods. Particle sizes are expressed as classes with specific effective diameter class limits, The
broad classes are sand, sill, and clay, rant from the larger o Me smaller.
Sand as a soil separate Comets of mineral mil peaces that are 0.05 millimeter to 2 milllmetem In diameter. In this table, the estimated Sand Content of each toll layer Is given as a percentage, by weight, of Me
SOB material that Is less than 2 millimeteR In diameter.
Silt as a Soil separate Consists of mineral Coll partakes that arc 0.002 to 0.05 millimeter In diameter. in this table, the estimated slit Content of each Sol layer Is given as a percentage, by weight, of the soil
marvel that IS Oaks than x mllllmeten In diameter.
Clay as a Sall separate Consists of mineral Coll particles that arc all than 0.002 millimeter In diameter. In this table. the estimated Clay Content Of each soli layer Is given as a percentage, by weight, Of Me soil
material that a less Man 2 migation In diameter.
The Content or sand, silt, and clay affects the physical behavior of a soil, particle size Is Important for engineering and agronomic Interpretations, for determination of soil hydrologic qualities, and for Sol]
classification.
Tim amount and kind of day affect Use fortlllty and physical wed scion of the wit and the ability of the foil to adsorb cations and to retaln moisture. They Influence shrink-swell potential, saturated hydraulic
conductivity (Ksat), phitklty, the ease of.I1 dispersion, and other soft properties. The amount and kind of clay In a golf else affect tillage and eavann log operations.
Moat balk denslry B the weight of mil (oyemry) per unit volume. Volume A measured when the wit a at field vwlsture Capacity, that A, the 0alstum Content at 1/3- or 1110-1bar (33kPa or lakpa) mohtum
tension. weight Is determined after the wit Is dried at 105 degrees C. In the table, the estimated moist bulk density, of each soll horizon Is expressed In grams per cubic Centimeter of sail material that Is less than
2 millimeters In diameter. Bulk dew lly data are used to ..puts great ectenslhlllty, lhdnk- well potential, available water Capacity, total pare wave, and ether wit pameates, The most bulk density Of a wit
Indicates Me nett space oval able for water and .otk. Depending on wit texture, a bulk density of more Man 1.4 can restrict water storage and rot penetration. Moat bulk density Is Influenced by texture, kind
of Clay, Coolant of organd.atter, and yell ktrvclum.
SAaraod hydraulic coductlytty (Ksaf) refers to Me ease with which pores In A saareted gall Crandall water. The <Stlmat. In the table ere expressed in terms of micrometers per second. They are based on soil
WrMeraUa observed In Me field, particularly structure, neaslty, and laxtum. Saturated hydraulic Conductivity (Ksal) Is Considered In the design of soil drainage systems and Septic tank absorption fields.
Available water capeckv riders to the quantity or water that the soil Is capable of sending for use by plants. The Capacity far water storage Is given In Inches or water par Inch of soil for each Sall layer. The cepedty
varies, depeMing an wit propertla Met effect retention Of water. The most Important papeaol are the Content of organs matter, soil texture, al density, and wit gWcture. Available water capacity IS an
Important bettor In Me Choke of plants or ch l to be grown and In the design and management of irrigation systems. Available water Capacity Is not an estimate of Me quantity of water actually available to
plants at any given time.
career exterud liiry whom to Me change In IapM of an unconfined clod as Moisture Content Il decreased from a moist to a dry state. It Is an expression of the wlume change between the water Content of the
coal at 1/3- or 1/10-bar tension (331dPa or 101cpa tension) and even dryness. The volume change a reported in the table as percent Change for the whole soil. The amount and type of clay minerals In the sail
Influence volume change.
Unear extensibility IS used M determine the shank -swell potential of soils. The shrink -swell potential IS low If the sell has a linear extensibility of less than 3 percent; moderate If 3 to 6 parcent;, high If 6 to 9
parcenU and wry high If more than 9 percent. If the linear extensibility Is more than 3, shrinking and swelling can Cause damage to buildings, rows, and other structures and To plant mots. Special design
Commonly Is marled.
Organic maaer IS the plant and Animal rescue In the soil at Wihous stages of decomposition. In MIS table, the estimated Content Of organic matter Is expressed as a percentage, by weight, of the soil materlaf
that Is less than 2 millimeters In diameter. The content of pigs nlc matter In a wil Can be maintained by returning Crop residue to the sell,
Organs matter has a positive effect on ava tabOa water capacity, water Infiltration, wit organism wmdry, and him. It a a count of nitrogen a other nutrients for caps and Coll organisms.
Erosion factors are shown In the table as the K factor (Kw and to and the T factor. Erosion factor K Indicates the susceptibility of a soli to sheet and Kit erosion by water. Factor K Is one of six factors used in the
UnHersal SnII Loss Equation (USLE) and the Rev]sed Universal SOII Loss Equation (RUSLE) to predict the average annual rate of yell loss by sheet and rill erpslon In tons per acre per year. The estimates are based
primarily an percentage of.11 • sand, and organs matter and on soil structure and Ksal. Values of K range from 0.02 to 0.69. Other fact bebp Actual, the higher the value, the more suscephbie the soil a to
sheet and rill erosion by water.
Easton factor Kw Ind saes Me shall of the whole yell. The diameter art nlod lfled by the presence of rock fragments.
E.zion mdrw K/InMcates the erod Iti llty of the fine -earth he.on, or the material less than 2 millimeters In size.
Esbn fades T Is an estimate of the maximum average annual rate of yell eroglen by wind and/or water that Can Cmrt without affecting cap productivity over a sustained parlod. The am 4 In tons par acre per
year.
Wind amahblllty groups art made up of soils Met have similar papaaks effecting their sukceptolllty to wind erosion In cu Rivaled areas. The soils assigned to gaup 1 are the most susceptible to wind easian,
and those assigned to group 8 arc Me least susceptible. The groups art described In the -National SaII Survey Ham book.•
Wlnd credibility Inder Is a numerical value Indicating the susceptibility of Solt to wind enow n, or the Tons per acre par year that ran be expected to be lest to wind emslon. There Is a close Corrosion between
wind erosion and the nature Of the surface layer, Me size and durability of surface clods, rock fragments, organic matter, and a mkamous reaction. Soll moisture and frozen soil layers also influence wind
ea5lon.
Assurance:
FOIA I ACCAss10l11W Statement I prlvaN Polity I Nor Discrimination Statement I Information Quality I USA.90V I White House
http://websoilsurvey.nres.usda.gov/app[WebSoilSurvey.aspx 6/24/2008

W A T�9oG Michael F. Easley,
William G. Ross Jr., Secretary
rNorth Carolina Department of Environment and Natural Resources
pColeen H. Sullins, Director
Division of Water Quality
October 15, 2008
Harvey Point Defense Testing Activity
Attn: Mr. Gary Sheeres
2835 Harvey Point Road
Hertford, NC 27944
Subject: Stormwater Review SW7080717
PBI Expansion Project
Perquimans County
Dear Mr. Sheeres:
This office received a Coastal Stormwater permit application for the subject project on July 24, 2008. A
preliminary review of your project indicates that before a State Stormwater permit can be issued, the following
additional information is needed:
1. After reviewing USGS topo maps, it appears that the natural drainage feature shown on Plan Sheet
C-302 is actually a "blue line" stream. All impervious areas (road crossings excluded), are
required to maintain a minimum 30 ft vegetated buffer.
2. An area of concern was identified at the termination of the drainage outlet shown on C-302 (detailed
on profile 7). In order to ensure non -erosive velocities into the adjacent wetlands, a permanent
energy dissipater, or level spreader, should be placed at the end of the swale. Provide
appropriate design calculations, supplement sheets and O&M agreements.
3. Revise drainage area 2 to exclude the portion of the drainage area outside of the PBI Expansion
project limits.
4. The warehouse area (sheet C302) and the gravel storage area (sheet C-304) appear to have
significant impervious areas and minimal stonmwater controls. These areas may function as high
density pockets of development and my require additional stormwater controls.
5. These issues might best be resolved by an on -site visit with the engineer and follow-up discussions.
The above requested information must be submitted to this office prior to November. 17, 2008, or your
application will be returned as incomplete. The return of this project will necessitate resubmittal of all required
items including a new application fee. If you need additional time to complete the application package, please mail
or fax your request to this office and include any reason(s) for the time delays.
You should also. be aware that the Stormwater Rules require that the permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina
General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day.
If you have questions, please feel free to contact me at [phone], or you can send a message to:
[e-mail].
Sincere/ly,
William J. Moore /�/
Environmental Engineer
Washington Regional Office
cc: nkins & Anderson Engineers
WHashington Regional Office
North Carolina Division of Water Quality Internet: worn ncimter�yualit%.or One
943 Washington Square Mall Phone [phone] NorthCarolina
Washington, NC 27889 Fax [phone] atura lm

Hankins and Anderson
Consulting Engineers
JUL 2 4g 2008
July 09, 2008 eQAPJAR 0
Mr. William J. Moore
Environmental Engineer
Washington Regional Office
North Carolina Department of Environment and Natural Resources
Division of Water Quality
943 Washington Square Mall
Washington, North Carolina 27889-3532
Re: PBI Expansion for HPDTA
Stormwater Management Permit Application
H&A Project No. 5637.00
Dear Mr. Moore:
Attached are the Stormwater Management Permit Application documents for the PBI
Expansion at Harvey Point Defense Testing Activity, Hertford, North Carolina. An
Erosion and Sedimentation Control Plan has also been submitted to the land Quality
Division. Included in this package are:
• Stormwater Management Narrative
• Stormwater Management Permit application form.
• Grassed Swale Supplement
• Check for $505.00
• Two sets of drawings. On the drawings you will find:
1) Grading and drainage plan showing stormwater management measures
(C301 through C304)
2) Sections (C501)
3) Vicinity Location Map (Cover Sheet T-1)
4) Erosion & Sediment Control Plans (C601 through C607)
5) Drainage Area Maps (C701 & C702)
4880 Sadler Road, Suite 300
Glen Allen, Virginia 23060
804.285.4171
804.217.8529 Fax
www.haengineers.com I,

L
Department of Defense
Harvey Point Defense Testing Activity
noIELA C. KLEpEC, CSp
Environmental Engineer
2835 Harvey Point Road [e-mail]
Hertford, NC 27944 [phone] Cell
[phone] [phone] Fax
935-3491 DSN

F /
Mr. William J. Moore
July 9, 2008
Page 2
We have tried to maintain the grading and drainage concept that would classify this
project as "low density".
We hope the attached documents are satisfactory. Please feel free to call us at any
time should any questions arise.
Very truly yours,
Hankins and Anderson, Inc
4880 Sadler Road, Suite 300
Glen Allen, VA 23060
804-285-4171
- IMVX =
Mike Basinger
Enclosure
C: Pam Klepec HPDTA, Larry J. Willis, P.E. — Hankins and Anderson, Inc.
File

INDEPENDENT ENVIRONMENTAL CONSULTANTS, LLC
4237
" NCDENR
Item to be Paid - Description
HPDTA SW M Permit Application PBI
INDEPENDENT ENVIRONMENTAL
CONSULTANTS, LLC
11506 ALLECINGIE PKWY SUITE 1A
RICHMOND, VA 23235
PH. 804-379-7133
Five Hundred Five and 001100 Dollars
PAY
TOTHE NCDENR
ORDER
OF
Memo:
Check Number. 4237
Check Date: Jul 16, 2008
Duplicate
Check Amount: $505.00
Discount Taken Amount Paid
JUL 2 4 2008
Check Number. 4237
WACHOVIA BANK, NA.
68-54-514
DATE
Jul 16,2008

505.00
I

h
Site
Legend Stormwater Permit Boundary
— Permitted Stormwater Boundary :- Manhole Check Dam PBI Expansion
— Nearby Stormwater Boundaries (!i.. Drop Inlet/Catch Basin Discharge Permit # SW7080717
Open Drainage teS'. Headwall Harvey Point Defense Testing Activity
— storm water Pipe Gr; Reservoir Hertford, North Carolina
---- Storm Armor Drainage Basin CUES
MapprgSe,,t

MUSGS
ti
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A;1ii 4 2017

4,
I
mumU.S. DEPARTMENT OF THE INTERIM
U.S. GEOLOGICAL SURVEY
HARVEY
MURT Nc
tl
US Topo
91
HARVEY NECK QUADRANGLE
.01IT. .0-1.
et
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J

4
r t„
t
PROJECT
LOCATION
I
HARVEY POINT DEFENSE TESTING FACILITY MAP

It
A? sasN
36° Varl
s Soil Map—Perquinnans County, North Carolina 3
d (PBI Site Expansion)
381M 3816E 3816E MIM W1710 vim 381M M1740 381M 38IM
3
mMap Scale: 1:688 if olnud on A lancKcape(11"x 8.5')4ieet
N Miss
0 10 20 4n W
AFaA
0
0 30 W 120 197
Map AoyxUr: Me Marola' Gina' cccrcl tes: W�4 Edge oa: UIM Zone 18N WGSi64
USDA Natural Resources Web Soil Survey
aii Conservation Service National Cooperative Soil Survey
✓81110 3817� 381]91
is i'. — y G:tlf
381800 361810
3
m
3/31/2017
Page i of 3
a6° SnSN

Area of Interest (AOI)
Area of Interest(AOl)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
®
Soil Map Unit Points
Special
Point Features
V
Blowout
0
Borrow Pit
X
Clay Spot
Closed Depression
Gravel PA
Gravelly Spot
Landfill
tt
Lava Flow
,46
Marsh or swamp
atr
Mine or Quarry
0
Miscellaneous Water
0
Perennial Water
V
Rock Outcrop
+
Saline Spot
Sandy Spot
401.
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
USDA Natural Resources
Conservation Service
Soil Map—Perquimans County, North Carolina
(PBI Site Expansion)
t-' Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
y ff Rails
,y Interstate Highways
.„. US Routes
Major Roads
Local Roads
Background
. Aerial Photography
Web Soil Survey
National Cooperative Soil Survey
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3657)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Perquimans County, North Carolina
Survey Area Data: Version 16, Sep 20, 2016
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed. Feb 15, 2011—Apr 4,
2011
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
3/31/2017
Page 2 of 3

Soil Map—Perquimans County, North Carolina
Map Unit Legend
PBI Site Expansion
Perquimans County, North Carolina (NC143)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
Ro Roanoke silt loam
Totals for Area of Interest
08 100.0%
0.8 100.0%
USDA Natural Resources Web Soil Survey 3/31/2017
Conservation Service National Cooperative Soil Survey Page 3 of 3