SW8051210_HISTORICAL FILE_20070606

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW e4 5 /a/v
DOC TYPE
El CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
��DCO D�
YYYYMMDD

Mich.iel I Easley, Go%cmor
William G Ross Jr , Secretary
North Carolina Department of Environment and Natural Resources
Coleen I I Sullins Director
Division of Water Quality
June 6, 2007
Liston A Rogers, Vice President
J L Anderson Co , Inc
PO Box 1646
Wilmington, NC 28402
Subject Approved Plan Revision
Roger Moore Brick Company
Stormwater Protect No SW8 051210
Pender County
Dear Mr Rogers
On March 14, 2007, the Wilmington Regional Office received a plan revision for Stormwater
Management Permit Number SW8 051210 The revisions include changes to the layout of the
buildings and parking with no net change in BUA it has been determined that a formal permit
modification is not required for the proposed changes We are forwarding you an approved
copy of the revised plans for your files Please replace the old approved plan sheets C1-C6
with the new ones C1-C7
Please be aware that all terms and conditions of the permit issued on February 17, 2006,
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 approved through this Office 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 (910)
796-7301
Sincerely,
Linda Lewis
Environmental Engineer 11
ENBlarl S. IWQSISTORMWATERIPERMIT1051210PR jun07
cc John Kuske III, P E , NKT
Pender County Planning Department
Linda Lewis
Wilmington Regional Office
Central Files
No` hCarolmo
Natura!!ry
Noith Carolina Dn isron of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Scr%ice
Wilmington Regional Office. lmernet www newaterouahty ors Fax [phone]
An Equal Opportunity/Affirmative Action Emp$oyer— 50% RecycledN% Post Consumer Paper

J Phillip Norris, P E
NORRIS, KUSKE & TUNSTALL Johns TunstaA, P E John A Kuske, III, PrE
Kent P Harrell, P E James T Pyrtle, PE
CONSULTING ENGINEERS, iNC. Philip Bevilacqua, P E J A Kuske;'P E
902 Market Street • Wilmington, NC 28401-4733 • Phone [phone] • Fax [phone]
E-Mad office@nkteng coin P�
LETTER OF TRANSMITTAL
To Linda Lewis
Date March 14, 2007
Job No 05102
NC DENR
Subject Roger Moore Brick
Pender County
SW$ 051210
WE ARE SENDING YOU VIA HAND DELIVER
❑ ATTACHED ❑ UNDER SEPARATE COVER
❑ SHOP DRAWINGS ® PRINTS ❑ TRACINGS
❑ SPECIFICATIONS ❑ DISKS ❑ COPY OF LETTER
❑
FAX TRANSMITTAL: NUMBER OF 'PAGES
INCLUDING THIS TRANSMITTAL
Call 910-343-9653 if you have any difficulty
receiving this message 3,
COPIES
DATE
NO
DESCRIPTION
2
12-05-05
----
C1 - Existing Site Conditions, Demolition and Erosion Control Plan
2
02-13-07
R3
C2 - Grading, Drainage, Erosion Control and Stormwater Management Plan
2
02-13-07
R3
C3 - Layout Plan
2
02-13-07
R3
C4 - Utility Plan
2
05-31-06
R2
C5 - Details
2
12-05-05
----
C6 - Details
2
05-31-06
R1
C7 - Details
�.
MqR 4
L-3 �•
EAEQUESTED
YOUR USE
❑ FOR REVIEW AND COMMENT ❑ FOR APPROVAL
❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US
REMARKS The enclosed plan was approved by Rob Gordon under the express program The original approved plan
showed 2 buildings The revised plan enclosed shows 1 building based on owner relates! changes In
addition, we also added additional drop inlets within the ABC stone brick storage areas Therefore, we
are submitting this revised plan for your files Please note that the drainage areas, the drainage
patterns and the total impervious area remain the same Please contact us with any questions or
comments you may have Thank you
cc SIGNED John A Kuske, III, P E I asn
CONFIDENTIAL AND PRIVILEGED Information contained in this document is privileged and confidential, intended for the sole use of the
addressee If you are not the addressee or the person responsible for delivering it to the addressee you are hereby notified that any dissemination
distribution or copying of this document is strictly prohibited If you have received this document in error please immediately notify the sender and
return to the address above

05 I o1�—
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John Kuske
Norris, Kuske, and Tunstall
902 Market Street
Wilmington, NC 28401
Reference Roger Moore Brick Company site in Hampstead, NC
Dear Mr Kuske,
An ellipse equation analysis has been performed in an effort to quantify the
horizontal distance that the stormwater pond needs to be located from the existing
wetlands in order to eliminate the potential for a hydrologic change within the wetlands
The wetlands have been delineated by others and the stormwater pond has been designed
by others Land Management Group's involvement in this project has been to verify the
distance required between the two features The following calculations show how the
soil conditions and pond outlet locations support the proposed design The specific goal
of this project as professed by Rob Gordon (NCDENR) is to ensure that the stormwater
pond is not effecting the first 12" of the water table within the previously delineated 404
wetland, which would potentially alter its protected wetland status
I have performed a drainage analysis of this site using the ellipse equation The
ellipse equation allows you to, 1) predetermine what drain spacings are necessary to
achieve a desired water table drawdown, and 2) calculate the effect of existing drainage
feature on lowering the watertable For this site, I have applied the equation in a manner
that allows me to determine the effective drain spacings required in order to quantify the
drainage effect to lower the water level from 0" to 12" below the existing surface within
the wetland area I have evaluated the site with numerous soil borings in order to assess
any potential limitations to drainage and to ascertain typical permeability values I have
used previously collected site specific elevations to determine the potential drainage
effects I used a simulated value of 42 feet to represent the wetland surface elevation, a
simulated value of 40 feet to represent the stormwater pond outlet structure and a critical
drawdown depth of 41 feet to represent a regulatorally important change in hydrology
These elevations convert to relative elevations of 0 feet, 2 feet, and 1 foot respectively
within the ellipse equation
Specifically, the ellipse equation was manipulated to evaluate the half effect (or
Le dimension) of equivalent parallel drains The Le measures the drawdown at the

midpoint between two drains or conversely the maximum horizontal extent of a drainage
effect from a single drainage feature as is proposed in this case The ellipse equation for
parallel drains is typically described as follows
S = [4P (b2 - a2) / Qd] "2
S = Drain spacing,
P = Permeability of the soil,
b = Difference between minimum drawdown and impermeable layer
a = Difference between dram depth and impermeable layer
Qd = Drainage coefficient
Note Le from the USDA website is calculated as S/2
The USDA NRCS Wetland Science Institute website of hydrologic tools was used to
manipulate the ellipse equation to determine site sensitivity to various drain spacings and
drain depths Qd was set at 1, which equates to 1" of rainfall dissipated in a 1 daytime
period The permeability was modeled as 5 inches per hour which represents the typical
value for these soil types The depth to the impermeable layer (used in determining a and
b) was set to 2 5 feet due to a compacted and cemented sand layer at that depth with a
vertical conductivity of approximately 1/5 of the sand layer above This sharp contrast in
vertical conductivities will act as an impermeable layer and cause the soil water to move
laterally The proposed stormwater pond is to be installed at an effective distance of 35
feet from the wetland system Therefore, if one half of the drain spacing distance is less
than 35 feet, then we must conclude that the stormwater dram as designed is not an
aggressive enough drain to effect the wetland hydrology as discussed above
The attached schematic shows that the stromwater drain must be installed within
15 5 feet of the wetlands in order to affect the hydrology within the wetlands The
current proposal shows the effective distance between the wetland and the stormwater
pond as 35 feet Therefore, I must conclude that, based upon site specific information
and a conservative application of the ellipse equation, the proposed stromwater pond is
far enough away from the wetlands so as to not affect wetland hydrology The ellipse
equation was tested with a sensitivity analysis for various hydraulic conductivities and
discharge rates and I am very comfortable in making these summary statements
Please do not hesitate to contact me if I can be of any further assistance to you in
this project I may be reached at 910-452-0001, 910-471-0777, or at
lwilliams(a-lmgrouR net
Sincerely,
Foh�P Williams
NC Licensed Soil Scientist, #1113
SC Professional Soil Classifier, #58
Attachments
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Hydrology Tools for Wetland Determination - Ellipse Equation
Page 1 of l
Ellipse Equation
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Example tile drainage system
Input Parameters
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Main Page
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van Schilfgaarde Equation
Kirkham's Equat+
User Nome: null Notes
Reset Name
Session # : 3
Time: 13:35
Date: 1 /31 /2006
http //www wh nres usda gov/technical/web—tool/Ellipsejava html 1 /31 /2006

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September 22, 2005
TO Ms Noelle Lutheran
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405
RE Roger Moore Brick Co
Pender County, NC
Dear Noelle
DEC 131005
SEP 2 b 2005
Alone 990-/52-0007
1%(u 9�0-�52-0oc0
(�((e(v 1mymmo nef
On behalf of Roger Moore Brick Company, Inc, I have enclosed the site plan for their
proposed project located off of Sloop Point Road in Pender County, NC This site plan shows
proposed impacts to isolated wetlands Total impacts will be approximately 11,677 ft2 or 027
acre and are needed to provide an area for storage and display of their inventory Because
isolated wetland impacts have been minimized to less than 1/3 acre, it is our understanding that
this activity is deemed permitted under General Permit # IWGP100000 and that no written
concurrence from DWQ is required Please review these maps at your convenience If you see
any problem with this proposed course of action, please contact me
Thank you for your assistance with this project
Sincerely,, ,
W
Kim Williams
Wetland Scientist
Encl
C Mr Louis North, Roger Moore Brick Co W/- ;-}( 01
Mr John Kuske, Noms, Kuske & Tunstall
Ms Kelly Wyatt, Pender Co -/a ,Ac -r"

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September 22, 2005
TO Ms Kelly Wyatt
Ponder County Planning Department
805 S Walker Street
Burgaw, NC 28425
RE Roger Moore Brick Company,
PD Review 04-05-05
Dear Ms Wyatt
Singe 9>04U2-0001
4rrn 910-/52--0000
uacrc5 41por,/r nel
I am writing in regards to the Roger Moore Brick Company project located off of Sloop
Point Road in Ponder County, NC Enclosed is a letter from Ms Lillette Granade of the U S
Army Corps of Engineers stating that she has determined that there are no jurisdictional wetlands
located on the site These wetlands are isolated and fall under the authority of the NC Division of
Water Quality Roger Moore Brick Company, Inc proposes to fill 0 27 acre of these wetlands
and has submitted a site plan to Ms Noelle Lutheran of DWQ for her review (see enclosed
letter) However, since isolated wetland impacts have been minimized to less than 1/3 acre, their
regulations (enclosed) stipulate that no written concurrence from DWQ is required
Thank you for your assistance with this project Please contact me if you have any
questions or need further information
Sin erelyI
W
Kim Williams
Wetland Scientist
Encl
C Mr Louis North, Roger Moore Brick Co
Mr John Kuske, Noms, Kuske & Tunstall

U.S. ARMY CORPS OF BNGINEMS
WILMINGTON DISMr—T
Acton Id 2gQ5gW46 County k. enact U S G.5 Quad, Topsail
NOTIVXCATION OF JURISDICTIONAL DETERMINATION
Property Owner` Louis North Agent, Kelly Dixon
Roger Moore Brick Comnany Land_MsiM4yement Grodo, Inc
Addtcsa, Post Office Box 1646 Post Office fiox 2,M
Wi'1mmQton. NC 28402 Wi1uhtieton, NC 2s40
Telephooe No t9101452-0001,
Property description,
Size (acres) approx. 6 $ acres Neatest Town LlAftitetid
Nearest Waterway Old Topsail Creek River fiasih Intt ac� oas_tal WAterwb
USaS I= Coordinates f04.3910 W 11.6815
Location doSoCtphati The proper s 1 c ti h a water of ld To sail Creek dh the gortlty t c
Indicate Which of the Following Apply_:
Based on prehminaty information, there maybe wetlands on the above described pi oparty We strongly suggest you have
tins property inspected to determine the extent of Depattrnent of the Army (k)A) jurisdiction To be considered fina I, a
3unsdwhonal determination must be verified by the Corps This preliminary detehmnation is tint art appealah[L at bolt
tinder the Regtalatory Program Admitustrative Appeal Process ( Reference 33 CK Paft 331)
There are Navigable Watm of the United States within the above described propatty subject to the pernut requirements o1
Section 10 of the Rivers and Harbors Act and Section 404 of the Cleats Water Act. Unless there is a change in the law or
our published regulations, this determination may be relied upon for a period riot to exceCd rVL ycrirs from the cline of th ik,
notification
There are wetlands on the above described property subject to the perrint roquirementS of Section 404 of the Clean Water
Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations this detertnitiatioti may be
relied upon for a period aot to exceed five years from the date of this notification
_ We strongly suggest you have the wetlands on your property delineated Due to the size of your Property and/or our
present workload, the Corps stay not bo able to accomplish tlus wetland delineation w a ttuiely ftwiner For a raure hmcl)
delineation, you tray wish to obtain a caasultant To be considered final, any delittoahon niust be verified by the Corps
_ The wetland on your property have been delineated and the delineation has bcdti verified by the Corps We strongly
suggest you Have fliis dt;hmation 5utvcycd. Upon completion, this survey should be reviewed and verified by the Copps
Chita verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property
vrluch, provided thero is no change in the law or our published regulations, may bb relied uport for a period riot to excrLd
give years
_ The wetlands have been delineated atid Surveyed and are accurately depicted on the plat signed by the Corps
Rcgulatoty Official identified below on , Utde;ls thexo is a change in the low or our published regulations tbit,
detertmnation may be relied upon for a period not to exceed five years from the date of this notification,
0
X
Lr
Page 1 of 2
E d EEG ON
N019NIW-1IM a3usn WdS2 2T S002 02 63S

if
Placement of dredged or fill material within waters of floc US and/or wetlands without a Departknent of the Army permit may
eonshtute a violation of gecttan 301 of the Clean Water Act (33 USC § 1311), If you have any questions regarding this
detetminatton and/or the Corps regulatory prograas, please cotitat:t Lillette. Granade ai (910) 2it4929
Basis For Determination, Detcrmengtmn is based on itiformgtlon provided, by Xelly nieon of Land Maaa comment_['rove.
Iiic„ aid a held viNif by L11lette. Grattade do Decct k0fj5 20d4
Remarks Thete ste.twa isolated wetland areas approximately J. 0 screen we on the above described property The
Corps Regulatory pffdial,
Date January_&, 2005 Lxpiratton Date Januat'y $., 2ll_1Q
Corps Regulatory Official (Initial) itQ�
FOR OFFICE USS ONLY
• A plat or sketch of the property road the wetand data form roust be attached to the file copy of this form,
• A copy of the "Notification Of Administrative Appeal Options Arid Process Acid Request For Appeal" form must be
transmitted with the property ownerlagent copy of this forts
■ If the property contains isolated wetiands/waters, please indicate to "Retriarks" section and attach 1K.
"Isolated Determination Information Sheet" to the file copy of this form
Page 2 of 2
b d 2ES ON NOi5NIW-1IM Q3usn WdS2 ET 9002 02 d3S

Applicant Louis North f bile Numhev 200500346 ;
Roger Moore Erick Campgny I --- -
Attached is, - —
RZTIAL PROFFERED PERMIT (Stritidafd Pernut of Letter of
PERNXU
or Letter of
i q �
I �
�I
Date' January S, 2005 -M W
See Section below
F.
X I APPROVED JURISDICTIONAL DETERMINATION I D—
PRELARY JURISDICTIONAL DETERMINATION II E
A
6#pehi of the above
agw /ru ► or
i wr'1111"r
may accept or objett to the permit M
ACCEPT, If yoU received a Standard Permit, you may sign the permit docutwtit and tutuitn it to the district engineer for final
authorisation. If you received it Letter of Permission (LOP), you may accept the LOP and your work is authorized Your signature
on the Standard Permit or acceptance of the LOP means that you accept the permit in itt entirety, and waive all rights to uppLal th>:
permit, uttoladmg its tams and conditions, and approved jurischrtional determi iations egsociated with the pertnit
• OBJECT, If you ebjwt to the permit (Standard or LOP) because of certitz term and conditions therein, you may requuNI f iLii the
permit be tuodWed accordingly You mast complete Seetioti II of this form and return khe form to the district engineer Your
objections must be received by the district engweer within 60 days of the date of this notice, or you will forfeit your right tt; loly 3l
fire pe=t m the future Upon receipt of your letter, the district engineer will evaluate your objections and may, (a) modsly rho
perttiit to addV%s all of your concerns, (b) modify the permit to address some of yout objections, or (c) riot modify the permit
having determined that the permit should be issued as previously written. Aftar evaluating your objections, the district engineer
will send you a proffered permit for your reeonsidrration, as indicated m Section B below
t You tray accept or appeal the pintmi
• ACCUT- If you received a Standard Permit, you may sign the petuat docu mat end ratarn, it to the district engineer for final
authorization. if you received a Letter of Pmutzsion (LOP), you may accept the LOP end your work is authorized Yuut sigli,s lure
on tiro Standard Permit or acceptance of the LOP means that you Accept the permit in i6 entirety, and waive all tights to appuisl the
permit, including its terms, and conditioA and approved jurisdictional detertnanations g9socmted with the permit
IP APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions thetelit you
may appeal the declined permit under the Corps ofEngtneers Administrative Appeal Process by compleung Secboti Il of this forin
and winding the form to the division engineer This form must be received by the division engineer widiin 60 days of the ddic of
thitt notice
C: PERMIT DENIAL; You may appeal the denial of a permmt under the Corps of EnLincers Administrative Appeal Prmc ;,, bL
coniplettrig Section It of this form and sending the form to the division en&eer. This form must be received by the div ision cngIJIL Lt
within 60 days of the date of this notice,
D. APPROVED RJ MT
provide new information,
You may accept of appeal the approved JD or -- -
• ACUPT, You do not need to notify the Corps to accept an approved JD Failure to notify the Corps within 60 days of the da1v iff
this notice, means that you accept the approved JD in its entirety, and waive all rights to appeal the approved J D,
• APPEAL. If: your disagree with the approved JD, you may appeal the approved JD tinder the Corps of Engineers AdrrUni*ativC
Appeal Process by coi rploting Section 11 of this form and sendmS the form to the do-4ion etigint tsr This form must be tCCCII-01 by
the division engineer within 60 days of the date of this notice
S d 2ES ON N019NIW1IM Q3Usn WdS2 2T S002 02 d3S

E. PRELEVIINARY JURISDICTIONAL DETERMINATION, You do not need to respotid to the Corps
regarding the preluninaxy JD The Preliminary JD is not appealable If you wish, you may request an approv ud
JD (which maybe appealed), by Contacting the Corps district for further instruction Also you may provide new
information for further consideration by the Corps to reevaluate the JD
REASONS FOR APPEAL OR OBJECTIONS (Describe your reasons for appealing the decision or your T
objections to an initial proffered permit in clear concise statements, You tnq attach additional hifomiatioii (k,
this foM to clarify where your reasons or objections are addressed in the adthitiistrative record )
ADDITIOXAL WORMATION: The appeal is lrmnted to a review of the administrative record, the Corps
metnorandum for the record of the appeal conference or meeting, and any supplemebtal information that the
review of£icet has deternimed is needed to clarify the administrative record, Neither the appellant nor tile. Ckitpi
may add new information or analyses to the record However, you may provide additional information to rf ai i i y
the location of information that is already in the admmmstrative record
If yoti have questions regarding this decision
and/or the appeal process you may contact:
If you only
process you
may also contact:
Mr. Arthur Middleton, Administrahve Appeal Rcv uwv r1t'!lc u
CESAD-ET-CO-R
U S Army Corps of$rigincefs, South Atlantic 1)1%iblllll
60 Forsyth Street, Room 9M15
Atlanta, Georgia 10303.8801
RIGHT OF ENTRY, Your signature below grants the right of entry to Corps of Engineers personnel, am any
government consultants, to conduct investigations of the project site during 'the course of the appeal pro cost; You
will be prowtded a 1.5 day notice of any site mvesttgatlon, and will have the Opportunity to participate to all site
investigations.
Date,
or
DIVISION ENGINEER:
Commander
U.S. Army Engineer Division, South Atlantic
60 Forsytb Street, Room 9MIS
Atlanta, Georgia 30303-3490
Telephone ntun
9 d ZEs ON N019NIWIIM Q3usn Wd9z 21 S002 02 835

[Fwd Roger Moore Brick Company, Inc (NKT #05102) State Sto
Subject [Fwd Roger Moore Brick Company, Inc (NKT #05102) State Stormwater No SW8 051210]
From Robert Gordon <Robert Gordon@ncmail net>
Date Fn, 06 Jan 2006 11 32 13 -0500
To Jkuskc3@nkteng corn
John,
I returned on Tuesday and had quite a few voice messages and I just realized I may have forgotten to call
you back You had a question regarding the ellipse equation If you have not gotten this question answered
yet, give me a call I will be in all afternoon
Sorry
Rob Gordon
Subject Roger Moore Brick Company, Inc (NKT #05102) State Stormwater No SW8 051210
From "Amy Norris / Norris, Kuske & Tunstall Engineers" <anorns@nkteng com>
Date Fn, 06 Jan 2006 11 26 24 -0500
To robert gordon@ncmail net
CC Jkuske3@nkteng com
Rob,
John wanted me to let you know that we are not ignoring your comment letter of December 19, 2005 We are
waiting on additional information relative to the wetland seasonal high groundwater elevation We will
submit our response to you as soon as this information is received
Thank you and have a great weekend
Amy
Amy S Norris for John A Kuske III, P E
Norris, Kuske & Tunstall Consulting Engineers, Inc
902 Market Street
Wilmington, NC 28401
910 343 9653
910 343 9604 (Fax)
Roger Moore Brick Company, Inc (NKT #05102) State Stormwater No SW8 051210 Content -Type message/rfc822
Content -Encoding 7bit
1 of 1 2/21/2006 2 38 PM

Roger Moore Brick Company, Inc (NKT #05102) State Stormwate
Subject: Roger Moore Brick Company, Inc (NKT #05102) State Stormwater No SW8 051210
From: "Amy Norris / Noms, Kuske & Tunstall Engineers" <anoms@nkteng comma
Date: Fri, 06 Jan 2006 11 26 24 -0500
To: robert gordon@ncmatl net
CC: Jkuske3@nkteng com
Rob,
John wanted me to let you know that we are not ignoring your comment letter of
December 19, 2005 we are waiting on additional information relative to the
wetland seasonal high groundwater elevation We will submit our response to you as
soon as this information is received
Thank you and have a great weekend
Amy
Amy S Norris for John A
Norris, Kuske & Tunstall
902 Market Street
Wilmington, NC 28401
910 343 9653
910 343 9604 (Fax)
Kuske, III, P E
Consulting Engineers, Inc
1 of 1 2/21/2006 2 37 PM

NORRIS, KUSKE & TUNSTALL John S Tunstall, P E J Phillip Norris, P E
CONSULTING ENGINEERS, INC. Kent h Harrell, P E John A Kuske, ill, P E
James T Pyrtfe, P E J A Kuske, P E
902 Market Street • Wilmington, NC 28401.4733 • Phone [phone] • Fax [phone]
E-Mail offioe@nkteng com
LETTER OF TRANSMITTAL
To
Rob Gordon, Environmental Engineer II
Date February 9, 2006
Job No 05102
NC DENR
subject Roger Moore Brick Company, Inc
Pender County
SW8 051210
WE ARE SENDING YOU VIA MAIL
ED ATTACHED ❑ UNDER SEPARATE COVER
❑ SHOP DRAWINGS ❑ PRINTS ❑ TRACINGS
❑ SPECIFICATIONS ❑ DISKS ❑ COPY OF LETTER
FAX TRANSMITTAL: NUMBER OF PAGES
INCLUDING THIS TRANSMITTAL
Call 910-343-9653 if you have any difficulty
receiving this message
COPIES
DATE
NO
DESCRIPTION
1
02-07-06
Copy of Ellipse Equation Analysis by Land Management Group, Inc
L+
BY �_ -
®
❑
AS REQUESTED
FOR YOUR USE
❑ FOR REVIEW AND COMMENT ® FOR APPROVAL
❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US
REMARKS
CC
This addresses you comments of December 19, 2005 concerning the stormwater pond setback in relation
to the existing wetland Please let us know if you need any additional information Thank you
SIGNED John A Kuske, III, P E I asn
CONFIDENTIAL AND PRIVILEGED Information contained in this document is privileged and confidential, intended for the sole use of the
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* * * COMMUNICATION RESULT REPORT ( DEC 19 2005 10 14AM ) * * *
P 1
FILE MODE OPTION ADDRESS (GROUP)
695 MEMORY TX
93439604
TTI NCDENR WIRO
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REASON FOR ERROR
E-1) HANG UP OR LINE FAIL E-2) BUSY
E-3) NO ANSWER E-4) NO FACSIMILE CONNECTION
FAX COVER SHEET
Date: December 19, 2005 No. of Pages: 6 AU
To: John Kuske III, PE From: Robert Gordon
Express permitting section
Company: Norris, Kuske & Tunstall FAX # [phone]
FAX #: [phone] Phone # [phone]
DWQ Stormwater Project Number: SW8 051210
Project Name: Roger Moore Brick Company, Inc.
MESSAGE:
Per our conversation, here is the literature on the drawdown calculation I know
you are fully capable of understanding the variables, but I have copied my notes
(below) from a similar fax as they sort of explain our viewpoint and interpretation
on the variables in the calculation Give me a call if there are any questions,
P — permeability of the soil. Use the middle of the range specified by the soil
survey for whatever soil type is predominant on site
b,a —The 1 oft figure for the depth to a confining layer (used in the example)
seems to be what is most commonly used In the absence of field data; b-a
amounts to the difference in head between permanent pool and the wetland.
0 'r__ Lb.w _A__ _9 4L_ ..41— 1 rl.— .-_

FAX COVER SHEET
Date December 19, 2005 No of Pages: 6
To. John Kuske III, PE From Robert Gordon
Express permitting section
Company. Norris, Kuske & Tunstall FAX # [phone]
FAX #• 343-9604 Phone # [phone]
DWQ Stormwater Project Number. SW8 051210
Project Name: Roger Moore Brick Company, Inc
MESSAGE -
Per our conversation, here is the literature on the drawdown calculation I know
you are fully capable of understanding the variables, but I have copied my notes
(below) from a similar fax as they sort of explain our viewpoint and interpretation
on the variables in the calculation Give me a call if there are any questions
P — permeability of the soil Use the middle of the range specified by the soil
survey for whatever soil type is predominant on site
b,a — The 10ft figure for the depth to a confining layer (used in the example)
seems to be what is most commonly used in the absence of field data, b-a
amounts to the difference in head between permanent pool and the wetland
S — Drawdown distance from the edge of the wetland The literature is
calculating drain spacing, so this figure can be divided by 2
Qd —The inlhr to be removed by the system The drain systems calculated in
the literature are trying to accomplish the opposite of what we are, so this # is
going to have to be low The standard value used in the literature is 1"148hrs,
that is the same as saying a wetland is being drained at a rate of 1"I48hrs This
is not acceptable In reality, this should be equal to the recharge rate of the
wetland but without field data, we don't know the recharge rate of the wetland
So, we have to assume all recharge is from surface water, which occurs on
average every 5 days in NC The consensus in our office is to use a 1"1120hr
value
We are going to discuss this equation at our next stormwater meeting in January
So hopefully we will be able to provide better guidance then

DRAINAGE SYSTEM DES l GI4
Robert L. Uebler, Fh.D.
Soil Specialist
N.C. Division of Health Services
Frequently it is necessary, to artificially loser the water
table be -tore a septic tanG soil absorption s)�si.em can be
installed The objective of such drainage is to maintain the water
table 1 foot below the bottom of the septic s/s_tpm trenches at all
times of the Year. Since the trenches are normally installed le
inches or deeper in the soil, t'-,e water tat l e Faust de 4 ept
inches below the soil SL�rface in Order to maintain a 1 foot
separation between the trench bottom and water table
Artiticial drainage s,.stems can be designed with ditches_ or
drain tile Ditches_ should not to Used ir, sand Or loamy sand sko:1s
as they require too much maintenance. The depth of the drainage
system is controlled b,, the availaL)le outlet Elevatior's betwee-
the outlet and the proposed System must be determined to establish
the possible depth of the drainage system.
The spacing between drains is determined from the Ellipse
Equation.
~ S 4F (b- c�
a
d
Figure 1 is pre=_ented to sssi st in def i n i rig the vari op.'s terms of
the egLFati on
1. S is the drain spacing :n feet.
C. F is the permeac.lit,, of the soil whsn szturated with water
given in inches_ car 'IcL-r. The perme-z%bi! ity depends greatly
on the to ture and structure of the soil. Estimated pt--rme--
abi1ities -ror the varioLis to tur,l groans are as follows.
Te ture
Sand
Sand/ loam
Loam
Sandy cl a)/ loam
Clay loam
Clay
Permeability,
(an/hour)

Structure greatly influences the permeability of the various
to>tural groups. For this reason on -site measurement of
permeability is best, and may be necessary.
3. b is the distance in feet from the draw down curve to
the confining layer at the midpoint between drains.
4. a is the distance in feet from the drain to a confining
layer.
5. Q is the drainage coefficient with units of in/hr.
d
The drainage coefficient as the inches of water depth
to be removed in 24 hours For our purposes we need
to require that a 1 inch rainfall be removed within 2
days or 48 hours The drainage coefticient would there-
fore be (I.E a nche=_/C4 hours or inches/hazer This
is a reasonable figure since many rainfalls will a teed
1 inch in w4 hours
Before using the Ellipse Equation one needs to determine the
depth of the confining layer. This can be done with borings on
sate. but for most purposes. one can as=_um= a distance of 1+) feet
to the confining layer, since it generally Occurs =loser to the
surf ace of the soil over much of the coastal plain in North
Carolina.
Two a amples of how to use the equation are given below:
E- ample 1. Gwen a loam soil with a permeability
of 1 (} inch per hour. Depth to confining layer
is 10 feet. Depth of drains is 4 feet. Distance
from the ground surf ace to the center of the draw
down curve is _."j feet. Drainage coefficient is
++.J inches per dare`- :+�8 in/hr.
P = 1.+► in/hr
b = 1 tti. () feet - 2.5 feet = 7.5 feet
a = 10 ++ feet - 4.++ feet = b.() feet
Q = i n/hr
7 2
IS = 4 1 .0 (7. 15 - 6. 0 )
(.) 0Z(.)a
S = 4 1.i+ (r6.25 -- '76)

4 i ^]�, • 2J
S =
S 804.2
S = 62 feet
E ample 2. Given a sandy clay loam soil with a permeability
of (.). 5 in/hr. Depth to confining layer is 1 ri feet Depth
of drains is 4 feet. Distance from ground surface to draw
down curve is 2 5 feet. Drainage coefficient is () i12()8 in/hr
F = 0 5 in/hr
b = 1 c?() feet - 2. feet = 7.5 feet
a = l().cc feet - 4.0 feet = 6.0 feet
0 = 0 t)2()S in/hr
S = j4 ci. S t7c - 6 0}
c_r. c12( )B
4 fj 21, 2t;
S = 44 f eet
Since a minimum separation distance of 25 feet must be maintained
between the septic taut trenches and the artificial drainage
system. a septic tent system cannot be installed using artificial
drainage under these circumstances
If we assume that the depth to the confining layer is always 1()
feet, the drains are 4 feet deep. the distance to the draw down
curve is 2 5 feet and the drainage coefficient the Ellipse
Equation simplifies to:
S = 62.4 FT feet
where the soil Qermeabiiity is the only variable. If details such
as the depth of the outlet are not yet available this equation and
an estimate of the permeability from te'ture can be used to
determine if further investigation of the details is warranted.
Where hardpans or fragipans are present in the soil profile, this
approach cannot be used. since these soil horizons act as confining
layers and the values of a and b would chance.

4
When designing the drainage system, pipe must be laid on
sufficient grade to prevent it from clogging with soil. The
minimum grade for 4 inch diameter tile is U.17 This grade will
provide a velocity at full flow in the the of u.B7 ft/sec
A final word on the use of drainage in conjunction with septic
systems ---Artificial drainage should be viewed only as assisting the
performance of the septic tanl systems on a seasonal basis during
the wet winter months Artificial drainage most not be used in
conjunction with large sewage systems Under such circumstance the
drainage system would act as a continuous point discharge for the
partly treated sewage cue to the ground water mounding under large
sewage systems. The system would therefore act as a discharging
system and not a soil absorption system.

W:�
1 \
FIGURE 1
Ground �urfacc
rDrowr�awn curve
1
\ Of
Draln
BoirlCr
Nomenclature used in ellipse equation
aff,�
F■

NORRIS, KUSKE &TUNSTALL
CONSULTING ENGINEERS, INC
December 12, 2005
Mr Cameron Weaver, Express Review Coordinator
NC DENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re State Stormwater Permit Express Review Submittal
Roger Moore Brick Company, Inc
US Highway 17
Pender County, NC
NKT Project No 05102
Dear Mr Weaver
J Phillip Norris, PE
John A Kuske, III, PE
John S Tunstall, PE
j A Kuske, PE of Counsel
Enclosed are two (2) sets of plans for the subject project, one (1) drainage area plan, one (1)
set of calculations, one (1) copy of the stormwater narrative, one (1) copy of the wetlands
information by Land Management Group, Inc, the original Division of Water Quality
Stormwater Management Permit application, the original SWU-102 supplement form, and a
$4,000 00 check for the express permit review fee Per our pre -application review, we are
currently working with the Owner's attorney who is preparing the deed restrictions for the
isolated wetland adjacent to the proposed stormwater pond We are also working with the
Owner's environmental consultant who will be determining the seasonal high groundwater
table in the same wetland This additional information will be submitted to you upon receipt
Please review this information for approval and contact us with any questions or comments
you may have Thank you for your assistance on this project
Sincerely,
NORRIS, KUSKE, & TUNSTALL
CONSULTING ENGINEERS, INC
4 Aa� �
j
Jo A Kuske ill, P E
JAKII Ilasn
05102 12-12-05-s-sw express-itr
Enclosures
cc Louis North / Roger Moore Brick Co , Inc
Frances Trask, Attorney I Murchison, Taylor & Gibson, LLP
Brian Scott 1 Land Management Group, Inc / RDS
CEIVED
DEC 4M
1126,
902 Market Street • Wilmington, NC 2840 1 -4733 • Phone [phone] • Fax [phone]