SW8020804_HISTORICAL FILE_20030109

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

N.0
O�
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Mr. Larry T. Watson, Vice President
Coastal Land Venture, Inc.
8201 Emerald Drive
Emerald Isle, NC 28549
Dear Mr. Watson:
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
January 9, 2003
Subject: Permit No. SW8 020804
Sea Oats Village
High Density Stormwater Project
Carteret County
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Sea Oats Village on December 13, 2002. 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. SW8 020804
dated January 9, 2003, for the construction of Sea Oats Village.
This permit shall be effective from the date of issuance until January 9, 2013, 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 150B 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
Linda Lewis, or me at [phone].
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:1WQSISTORMWATIPERMIT1020804.JAN03
cc: John P. McLean, P.E.
Emerald Isle Building Inspections
Division of Coastal Management
Linda Lewis
Wilmington Regional Office
Central Files
G
NCDENR
of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623.7748

State Stormwater Management Systems
Permit No. SW8 020804
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
Sea Oats Village
Permit Number:
SW8 020804
Location:
Carteret County
Applicant:
Mr. Larry T. Watson, Vice
President
Mailing Address:
Coastal Land Venture, Inc.
8201 Emerald Drive
Emerald Isle, NC 28549
Application Date:
December 13, 2002
Receiving Stream/River Basin/Index #:
White Oak / Piney Creek /
WOK03 20-36-5
Classification of Water Body:
"SA"
Trench Number:
1 2
3
4
Drainage Area, acres:
0.91 0.51
0.14
1.33
Onsite, ft2:
0.91 0.51
0.14
1.33
Offsite, ft2:
0 0
0
0
Total Impervious Surfaces, ft2:
36,408 19,289
51745
10,973
TSS removal efficiency:
85% (a 50' vegetated filter
is required)
Trench Length, feet:
125 120
70
65
Trench Width, feet:
23 15
12
22
Trench Height, feet:
4.3 3.5
2.5
2.5
Pipe Diameter/Length, ft.:
3'/ 375' 3' / 240'
2.5' / 70
2'/ 195
*Permitted Storage Volume, ft3:
5,792 3,126
958
1,628
Bottom Elevation, FMSL:
9.6 9.6
9.6
9.6
Temporary Storage Elevation, FMSL:
14 13.2
12.2
12.2
Controlling Orifice:
bypass set at storage elevation
pipe
(draw down in <5 days)
Type of Soil:
Newhan
Expected Infiltration Rate:
6" per hour
Time to Draw Down, hours:
3 3
2
2
Seasonal High Water Table Elevation:
7.6 FMSL
*Assumes 0.35 void ratio.
3

.6
State Stormwater Management Systems
Permit No. SW8 020804
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
The permittee shall at all times provide the operation and maintenance necessary to assure
the permitted stonnwater system functions 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 revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of bypass structures, vegetated filter, flow
spreader, catch basins and piping.
g. Access to the outlet stricture must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
6. The facilities shall be constructed as shown on the approved plans. This permit shall
become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
7. Upon completion of constriction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications
must be noted on the Certification. A modification may be required for those deviations.
8. 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.
9. 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 any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
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 or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
4

State Stormwater Management Systems
Permit No. SW8 020804
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Coastal Land Venture, Inc.
Sea Oats Village
Carteret County
FOR T LIE
construction, operation and maintenance of underground infiltration trenches in compliance
with the provisions of 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 January 9, 2013, and shall be subject
to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater controls have
been designed to handle the runoff from 36,408 ft2, 19,289 ft2, 5,745 ft2 and 10,973 ft2,
respectively, of impervious area.
3. The overflow from the infiltration trenches must be directed into a 50' vegetated filter
prior to release into waters of the State.
4. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.
2

Project Name:
Permit Number. -
Location:
Applicant:
Mailing Address:
State Stormwater Management Systems
Permit No. SW8 020804
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Sea Oats Village
SW8 020804
Carteret County
Mr. Larry T. Watson, Vice President
Coastal Land Venture, Inc.
8201 Emerald Drive
Emerald Isle, NC 28549
Application Date:
Receiving Stream/River Basin/Index 9:
Classification of Water Body:
Trench Number:
Drainage Area, acres:
Ofsite, ft2:
Offsite, ft2:
Total Impervious Surfaces, ft2:
TSS removal efficiency:
Trench Length, feet:
Trench Width, feet:
Trench Height, feet:
Pipe Diameter/Length, ft.:
*Permitted Storage Volume, ft3:
Bottom Elevation, FMSL:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
Type of Soil:
Expected Infiltration Rate:
Time to Draw Down, hours:
Seasonal High Water Table Elevation
*Assumes 0.35 void ratio.
December 13, 2002
White Oak / Piney Creek / WOK03 20-36-5
"SA"
I
2
3
0.91
0.51
0.14
0.91
0.51
0.14
0
0
0
36,408
19,289
5,745
85% (a 50' vegetated filter
is required)
125
120
70
23
15
12
4.3
3.5
2.5
3'/375'
3'/240'
2.5'/70
5,792
3,126
958
9.6
9.6
9.6
14
13.2
12.2
bypass set at
storage elevation pipe
(draw down in <5 days)
Newhan
6" per hour
3
3
2
7.6 FMSL
4
1.33
1.33
0
10,973
65
22
2.5
2' / 195
1,628
9.6
12.2
2
3

State Stormwater Management Systems
Permit No. SW8 020804
IL SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
The permittee shall at all times provide the operation and maintenance necessary to assure
the permitted stormwater system functions 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 revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
C. Maintenance of all slopes in accordance with approved plans and specifications.
f Debris removal and unclogging of bypass structures, vegetated filter, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
6. The facilities shall be constructed as shown on the approved plans. This permit shall
become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications
must be noted on the Certification. A modification may be required for those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stonnwater treatment device, and prior to
occupancy of the facility.
9. 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 any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
e. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
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 or a CAMA Major permit was sought.
f Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
9

State Stormwater Management Systems
Permit No. SW8 020804
10. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of ten years from the date of the completion of construction.
12. Prior to the sale or lease of any portion of the property, the permittee shall notify DWQ
and provide the name, mailing address and phone number of the purchaser or leasee. An
access/maintenance easement to the stormwater facilities shall be granted in favor of the
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the permitted built -upon is directed into the permitted system.
14. The Director may notify the permittee when the permitted site does not meet one or more
of the minimum requirements of the permit. Within the time frame specified in the notice,
the permittee shall submit a written time schedule to the Director for modifying the site to
meet minimum requirements. The pennittee shall provide copies of revised plans and
certification in writing to the Director that the changes have been made.
15. The pennittee must maintain the current permitted drainage area. No additional runoff
from outside of the permitted drainage area boundary may enter the permitted stonnwater
facilities without first applying for and receiving a permit modification.
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Penmittee, a formal permit transfer request
must be submitted to the Division of Water Quality accompanied by an application fee,
documentation from the 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 such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittec to enforcement action by the Division of Water Quality, in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
3. 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.
4. 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
stonmwater management systems.
The permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater
management facility.
6. 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.
5

State Stormwater Management Systems
Permit No. SW8 020804
7. Unless specified elsewhere, permanent seeding requirements for the stormwater control
must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
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 any name, ownership or mailing address changes
within 30 days.
Permit issued this the 9th day of Janaury, 2003.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan�T mek, P.., Director
4-0-� Division of Water Quality
By Authority of the Environmental Management Commission
0

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•
OFFICE USE ONLY
ate Received
Fee Paid
Permit Number
.-)-
y
bQ a
r s State of North Carolina I
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fume may he photocopied for use as an original
1. GENERAL INFORMATION
1. Applicants name (specify the name (if the corporation, individual, etc, who owns the project):
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
3. Mailing Address for person listed in item 2 above:
City:_ZOERAIM ISLE State: MC„ zip: 28EA-4c___
Telephone Number: ( Z"57- ) 354 - 3$30
4. Project Nagle (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, ape ration and maintenance agreements, etc.):
5. Location of Project (street address):
_$aQ� En�t��nc fl 1 WF--
City: MAE.e_ AU:> ISLEC-. _ County: CAR-1 egs-T
6. Directions to project (from nearest major intersection): `.
rR- NCZ4 - NC � LnrrE� ��+�1. R�cEE o Sou 714 o14 �]C Sa
7, Latitude: 3 :A q2 +` Longitude: "l7 fSZ' 3�of project
8. Contact person1y who can answer questions about the project: q
Name: 3049 C-WAA._ p Telephone Number: LZ /rZ� )--L-z 1 1
.3F04lea h Pe. Gra JC p -2. car►
II. PERMIT INFORMATION:
1. Specify whether project is (check one): 1r11- New Renewal Modification
0 Form SWU-101 Version 3.99 Page 1 of 4

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2. Ir this application is being submitte I as the result of a renewal or modification to an existing pert lit., list the
existing permit number 0A and its issue date (if known} -A
0
•
3. Specify the type of project. (check one):
Low Density ✓ High Density Redevelop General Permit Other
Additional Project Requirements (check applicable blanks):
_CAMA Major V Sedimentation/Erosion Control _404/401 Permit. _NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing storm rater management for the project.
a jk art ; I • ' .
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Ali
PUT MAN-M
2. Stormwater runoff frorn this project drains to the _Wl-kas 4tkK_ River basin.
3. Total Project Area: 2 .A acres 4. Project Built Upon Area: %
5. I -low many drainage areas does the project have? 1�-&iv waev_w ��� QAAaC--a)
6. 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.
Basin Information
Drainage Areal
Drainage Area
Receiving Stream Name
pir
C
Receiving Stream Class
SA
t
Drainage Area
2
z 47.6,
Existing Impervious' Area
— p --
— o —
Proposed ImperviousµArea
4o
Imperviousµ Area (total)
9 1 , 6 no
Imperviousµ Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings
S
4Z 2
On -site Streets
r'
On -site Parking
On -site Sidewalks
ZZ
Z �J
Other on -site
Off -site
D
p
Total: 6 40 a S
Total:
S
Impervious area is defined as the built Upon area including. but not limited to. buildings, roads. parking areas.
sidewalks. gravel areas. etc.
0 Fonn SWU-101 Version 3.99 Page 2 of

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Basin Information..,.'..,
Drairage Area
Drainage Area
Receiving Stream Name
Receiving Stream Glass
A
5A
Drainage Area
O Z
S7 g%
Existing Impervious' Area
Proposed Irtlpervious'Area
S
I O
% imper-vious* Area (total)
- t t rn D o
I ) s.q(, %
Impervious` Surface Area
Drainage Area l
Drainage Area 2
On -site Buildings
On -site Streets
, �-
4 2-
On-site Parking
74 S
On -site Sidev.,alks
�o �—
` , e> �--
Other on -site
I o�
o r
Off -site
—0 _�
I — o -
Total 57¢s, cl
Total: 0 S-r S
impervious area is defined as the huih upon area including, but nor iia)ired ro, building;, roads, parking areas,
sides alks, gravel areas, etc.

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7. How was the off -site impervious area listed above derived? . N I
® IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed 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.
1-14oRG vxL, 8E K 6 o f T4AE-5e '131 L UtJ6S -
1. The following covenants are intended to ensure ongoing compliance with state stormislater management permit nurnber
as issued by the Division of Water Quality. These covenants may not he
changed or deleted without the consent of the State.
z. No more than square feet of any lot shall be covered by structures or impervious materials.
Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings.
4. Built -upon area in excess of the permitted arnount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stomawater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity
and performance of the system as permitted.
• By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, 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 State, 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 and General Permits Unit at [phone] for the status
and availability of these forms.
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement '
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Off -Site System Supplement.
Form SWU-107'IInderground Infiltrationor rench--S-upp ernen
r"Crm JVVU_IuZ5 reuse xrver nasrn 3rppremetit
Form SWU-109 Innovative Best Management Practice Supplement
is Form SWU-101 Version 3,99 Page 3 of

0
0
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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 Iisted below. 'The complete application package should be
w1�1 submitted to the appropriate DWQ Regional Office.
�j 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 Stonnwater Management Permit Application Form J P64
• One copy of the applicable Supplement Form(s) for each BMP JP_0
• Permit application processing fee of $420 (payable to NCDENR) �)Q__
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications, including:��,__.�
- Development/Project name ✓
- Engineer and firm Loll
Legend ✓
- North arrow
- Scale ✓
Revision number & date
Mean high water line "� `Jew c95�14 tsOTS (00")
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, an(�s tormwater control measures
Wetlands delineated, or a note on plans that none exist ✓ '%fVj - 4M
Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
Drainage areas delineated Z �1St 4 � `
Vegetated buffers (where require ✓ Mb B-{ B:rA NLA %5M
• VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section. A
Designated agent (individual or firm): K � � r- i_m�s
Mailing Address: l6(0yAiA, T
City� State:A) zip: --
Phone: rq Z_ ) 3g 3 ZZ �_9 Fax: ( ZG?__Z_
rv�c l Cain p1 @ +q Z . con.
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 2) _�rr __.
certify that the information included on this perrnmit application faris, to the be f my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required cleed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NC AC 2 1-1.1000.
Signature: Y---� Date: -1- 2-y- � 'L
0 Form SWU-101 Version 3.99 Page 4 of 4

Permit No, SL(Ja't3GDFU 4-
(to he provided bY DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement. for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name: 15ELF. bk�TS V I LL Ada 1E7--
Contact Person: `OA O C• LEAN Phone Number: (257—) ZZ 19
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
workshect applies to: Trench in Drainage Area Z
(from plans)
(Irons Form SWU-101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type
NEWApA
Infiltration Rate
& inliir or cf/hr/sf (circle appropriate units)
SITfWT Elevation
+ 7. Cap fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
�^1
4-, 34
Design Volume
T c.f.
Design Storm
� .5 inch event (1.5 inch event for SA waters, I inch event for others)
Drawdown Time
Perforated Pipe Size
Perforated Pipe Length
No. Observation Wells
0. l2 days
inch diameter
( 1 b loner �bb
Stone Type (if used) MARL -
Stone Void Ratio o .3 5
Trench Elevations (in feet rnean sea level)
me y e regrrrre� case- y-case asrs)
(c i�an washed 3f 4' -4-b I `t
Bottom Elevation -I- L9.6o fmsl
Storage/Overflow Elevation + 14.0 fmsl
Form SWU-107 Rev 3.99 Page 1 of 4

Trench Dimensions IYe 1_
Height 4-3 ft. Length �Z� ft.
Width 2 3 ft. Volume Provided 5,79 Z cu.ft.
III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
J PM
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
.lPl" I
c. Bottom of system is at least 2 feet above the seasonal high water table.
J PM
d.Bottom of the system is 3 feet above any bedrock or impervious soil horizon,
e. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
£ System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
J PM
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
J Pr4
h. System is not sited on or in fill material or DWQ approval has been obtained.
J PM
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
JAM
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including; any off -site drainage.
—
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
J 1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). (2 11)
JVr--1 m. Drainage area for the device is less than 5 acres.
... fM n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
^t p� o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
JF, p. Sides of the infiltration trench are lined with geotextile fabric.
a P64 q. Rock used is free of fines (washed stone) and has a large void ratio.
,i pNf r, Side to bottom area ratio is less than 4:1. (6PrpYe'e)
Form S WU-107 Rev 3.99 Page 2 of 4

y
Y
�
d
tr
i
I

N/0 '/PM s. Observation well(s) are provided (case -by -case basis).
t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
JPM u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.-
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a I inch rainfal l event and at least once a month.
Chronic high water table elevations (within I foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H . 1000 must be designed, approved and constructed.
b. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads
from the system.
Form S WU- l07 Rev 3.99 Page 3 of 4
, the accumulated sediment shall be removed

l acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six maintenance procedures listed above. I agree to notify DWQ
of any problerns with the system or prior to any changes to the system or responsible party.
Print Name and Title: T A NTf&J
Address: bzot EMER1�12�V>- IF-MEl2At_-D i5L.F— , �G
Phone: Date:2ooz-
Signature:
Note: The legally resporsible part}, should riot be a honteowners association ttnlers more than SO% of the lots have been sold and a
resident of the subdivision {iris been named the president.
1, fA/ l 4 k-. FCt.nn , •�) - , a Notary Public for the State of r L41-� (ar -' )%1^ County of "C)n S (o+•-S do hereby certify that LQ rt H T lR% S o ►` personally appeared before me this - l7
h
day of �G�LI Zf' `� , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
,,��yeeeeireerr,,�
Op
PM lc.q
4
ti • •• I
r
� "SAL. lvty commission expires �i f� �ej�
C 0 UN ,L,,�`.
�t�iiieeeee,%
Fomi SWU-107 Rey 3.99 Page 4 of 4

Permit No. 5ti(J F OZO,7U
(to be provided by DTYQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Mana ,,ement Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : 5 Ea.. ZS \ 1I LJ-AC-_ l-=:
Contact Person: %-ICAaN N1,GLlr1NQ Phone Number: fZSZ)_ 313--LV°
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench in Drainage Area
(from plans) (front Form SWU--101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type NF—WPAK
Infiltration Rate
SHWT Elevation
Trench Design Parameters
Design Volume
Design Storm
Drawdown Time
Perforated Pipe Size
Perforated Pipe Length
No. Observation Wells
Stone Type (if used)
Stone Void Ratio
Co in or cf/hr/sf (circle appropriate units)
+ 7.G fmsl (Seasonal High Water Table elevation)
2 ,34-4 c.f.
I • (�-' inch event (1.5 inch eventfor SA waters, 1 inch event for others)
O. f days
n
inch diameter
2 40 ft.
MARL
o-31a
Trench Elevations (in feet mean sea level) I
Bottom Elevation + 9 • (40 fmsl
t
Storage/Overflow Elevation '� 1�J:? fors]
(may be required on a case -by -case basis)
Form SWU-107 Rev 3.99 Page 1 of 4

F

Trench Dimensions
Height
Width
?. S ft
5 fl:
111. REQUIRED ITEMS CHECKLIST
lre4C�
Length
Volume Provided
/2D
' 3I ZCa cu.ft.
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater, Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
J PM b. System is located at least 100 feet from water supply wells.
e. Bottom of system is at least 2 feet above the seasonal high water table.
pM d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
c� ?d e. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
J PFl f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
J PM g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
dA M h. System is not sited on or in fill material or DWQ approval has been obtained.
i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
JPM n]
J PM n.
0.
J PM
S P.
JPM _ _ q.
'3 e M r.
System captures and infiltrates the run ff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). '� 1I E46UT
Drainage area for the device is less than 5 acres.
A pretreatment device ( filter strip, grassed Swale, sediment trap, etc.) is provided.
Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
Sides of the infiltration trench are lined with geotextile fabric.
Rock used is free of fines (washed stone) and has a large void ratio.
Side to bottom area ratio is less than 4:1. (agEPTEI: )
Fonn SWU-107 Rev 3.99 Page 2 of 4

!
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J PA s. Observation well(s) are provided (case -by -case basis). C JO )
.ii t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
-S� M u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCI-I OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original desip depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a I inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will.give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 4' 1 0-5 , the accumulated sediment shall be removed
from the system.
Form SWU-107 Rev 3.99 Pagc 3 of 4

t , 11 ;,
a]

l acknowledge and agree by my signature below that I am responsible for maintaining the stormwater
collection system in accordance with the six maintenance procedures listed above. 1 agree to notify DWQ
of any problems with the system or prior to any changes to the system or responsible party.
Print Name and Title: LAFZR`r T W NT%ti1
Address: bZ01 E E AW t�G
Phone: 2 5 Z— 3s 4- 3 83a
Signature:
Date: OCr '7, Zaoz
Note: The legaldv responsible parry should not be a honreowners association unless rnore theur 50% of the lots have been sold and a
resident of the subdivision hers been named the president.
1, W , f < <-uwt k-,_ Fel—, rt ,1-f a Notary Public for the State of 0160t, e&ro County of
Utii ]vr do hereby certify that 1! 4� I _ 04- personally appeared before me this Z111-C
day of 7—pw , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
M K. F,q
p. '•
- -REAL
My commission expires / vLJ r� �/ h Z/
Form S W U-107 Rev 3.9) Page 4 of 4

m
'ml
� . .
. . . .
� ... . �... '.

Permit No. SGV 10 ZD 0170
(to he provided 6v DPVQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review_
A complete Stormwater management plan submittal includes a Stormwater management ,permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stonnwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : 5 E--A t paM V 1 LIAC�—
Contact Person: 3(314l�j NAC'LF-Am _ Phone Nuriiber: (25Z) 13 913 • I I
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet armies to: Trench in Drainave Area Im
(from plarta)
(front Form SWU-101)
I1. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type NEWApoN
Infiltration Rate (�p in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation (- 60 fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume 1 c.f.
Design Storm 1.15 inch event (1.5 inch event for SA waters, I inch eventfor others)
Drawdown Time 0.0days
Perforated Pipe Size 30 inch diameter
Perforated Pipe Length -70 ft.
No. Observation Wells (mqv be required on a case -by -case basis)
Stone Type (if used) MA R
Stone Void Ratio o 3c;;,
Trench Elevations (in feet mean sea level)
Bottom Elevation +91(0 • fmsl
Storage/Overflow Elevation A IZ . 7- fmsl
Fonn SWU-lo7 Rev 3.99 Page t of 4

Trench Dimensions
Height
Width
2.5 ft
�J.2 ft.
III. REQUIRED ITEMS CIIECKLIST
Length ft.
Volume Provided 9 SS cu.ft.
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 21-1 .1008.
Initial in the space provided to indicate that the following design requirements have been met and. supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
JYN� a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
3P0 b- System is located at least 100 feet from water supply wells.
IPA _ c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
GPM _ c. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
c� PM f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
J P M g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
. QNl h. System is not sited on or in fill material or DWQ approval has been obtained.
J i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
J P� j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
J P� 1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). (_2" )
m. Drainage area for the device is less than 5 acres.
.iQlv� n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
P. Sides of the infiltration trench are lined with geotextile fabric.
JPAA q. Rock used is free of fines (washed stone) and has a large void ratio.
JPM r. Side to bottom area ratio is less than 4:1. (J,b)
Form SWU-l07 Rev 3.99 Page 2 of 4

JPM
s. Observation well(s) are provided (case -by -case basis).
GPM t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
JQM
u. A benchmark for checking sediment accumulation is provided.
1V. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over -excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a l inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
When the depth at the benchmark reads 'r the accumulated sediment shall be removed
from the system.
Form SWU-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that i am responsible for maintaining the stormwater
collection system in accordance with the six 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.
Print Name and Title: _ LARR`r T W NTfOtJ
Address: E_FAL.Q _ 1�WF IF G-CzAL-.D \5LF— l�G
Phone: Z 5 z l 354 - 3 �3a
Signature:
Date: ()C-V ", Za6Z
Note: The legally responsible party should not be a horneowners cusocralion unless store than 50% of the lots hate been sold and a
resident of the subdivision has been named the president.
i, F" n , a Notary Public for the State of Rol �4. CO -re , County of
do hereby certify that L4.. f t �_r I.Jeot 0 personally appeared before me this
day of `��} c/ Z�'y , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official sea],
P� K. F4n1 •,,�
®�A
�,••
p, • (JID VAU
• `
f4
" /
lNly commission expires AG
Form SN1'U-lo7 ReN, 3.99 Page 4 of 4

r
H

Permit No. 5�0 xG ZD b'G q-
(to be provides! bs' DIVQ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management ,permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : 45Ep+ OAXE�7 yA LL-AGG-
Contact Person: J0141NJ MC LEAN _ Phone Nismber: FC►74 Z93 - zZ 1g
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench in Drainage Area 17
(from plans) (from Form SWU-101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type
{-F-W4AAN
Infiltration Rate
(0 in/hr or cf/hr/sf (circle appropriate units)
SI-IWT Elevation
+ 7-w fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume
22-1 c.f.
Design Storm
t • S inch event (1.5 inch event for Sit waters, 1 inch event for others)
Drawdown Time
d . D7 days
Perforated Pipe Size
24 inch diameter
Perforated Pipe Length
ft.
No. Observation Wells
O (ntav be required on a case -by -case basis)
Stone Type (if used)
1Z L—
Stone void Ratio
a-SF2
Trench Elevations (in feet mean sea level) r
Bottom Elevation 't- a - C fmsl
Storage/Overflow Elevation fi t Z -Z firnsl
Fonn S WU-107 - Rev 3.99 Pagc I of 4

-Ay - `v!F
r :q t F

Trench Dimensions
Height
Width
Z 11z ft
2 2. ft.
I11. REQUIRED ITEMS CHECKLIST
Length ( S ft.
Volume Provided (A Z S cu.ft.
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
.� c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
J e. Off-line system, runoff in excess of the design volume bypasses the system (bypass detail
provided).
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
,P g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
JPM h. System is not sited on or in fill material or DWQ approval has been obtained.
.iPM i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
�A
stabilized.
,in'M j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
JPAA 1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). 70
,Q►V I m. Drainage area for the device is less than 5 acres.
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
4A o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
- ". - t p. Sides of the infiltration trench are lined with geotextile fabric.
q. Rock used is free of fines (washed stone) and has a large void ratio.
.- m r. Side to bottom area ratio is less than 4:1. (gVAIV )
Form SWU-107 Rcv 3.99 Page 2 of 4

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s. Observation well(s) are provided (case -by -case basis).
t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without,over-excavating. Over -excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a 1 inch rainfall event and at least once a month.
Chronic high water table elevations (within I foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its esign function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over -
excavating. Over -excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water duality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments.
4
When the depth at the benchmark reads '�" t� , the accumulated sediment shall be removed
from the system.
Form SWU-107 Rev 3.99 Page 3 of 4

[ acknowledge and agree by my signature below that I am responsible for maintaining the storrnNvater
Collection system in accordance with the six maintenance procedures listed above. 1 agree to notify DWQ
of any problems with the system or prior to any changes to the system or responsible party.
Print Name and Title: LARP"T T w AT�'Sl�i
AddresS: bM _ EMERAL-O 2\V� `�N1ECzAt-D �SI E , �3G
Phone: 2 5 z - 354 - 3 83a
Signature: -Zzz� N
Date: 0C--C -7, Zao�-
Note: The legally respa),rsible p(u-ty, shoulcl ),rot be a hoaneowners association unless more than 50% of the lots have been sold cruel a
resident of tire subdivision has been named the president.
n r t a Notary Public for the State of A o f+t-.C& r� �, �, _ County of
v\-� do hereby cc/rtify that L� r r., f L 9 r, �S personally appeared before me this
day of ��—�hel' Z� o , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Wimess my hand and official seal,
`,,�„ttatrrrr�r�e
K.
• o 1 YSE. My commission expires
©w cooN�,.�`��
`),f,115t1tts1t
Fonn SWU-107 Re,,• 3.99 F'age 4 of 4

John P. McLean Engineering Associates
106 Manatee Street
Cape Carteret N.C. 28584
TEL [phone]
FAX [phone]
E-mail [e-mail]
October 6, 2002
Ms. Linda Lewis, Engineer
NC DENR, DWQ
127 Cardinal Drive Extension
Wilmington, N.C. 28405
RE: Sea Oats Village - Emerald Isle - 5W8 020804
Dear Ms. Lewis,
Attached to this note you will find "additional information" for referenced project.
,/"'1. The 404 Wetlands are shown on the north and south side of Piney
Creek. Sheets 1, 4 & 5 show the surveyed alignment and there is
note on these sheets also. There will be a 50 foot buffer in place so
404 Wetlands will not be disturbed.
c'�2. 4 original signatures with 4 Notary affirmations have been included.
3. Calculations based on the 1"" event have been shown on every sheet.
�4. A bypass apparatus has been designed for each entry point into the
infiltration trenches. Details are included on the drawings.
'5. I intend to have the contractor install a 50 foot vegetated filter with
centipede sod. There is ample space on the area set aside for the
filter. It will have a diffuser pipe installed within the swale as
detailed. The pipe will be tied down with mobile home type anchor
screws.

- ' - � _ � .r.' .t .. � _ ..

Z 6.
,/' 7
8.
✓10.
Z12.
Trench overflow elevations are included (see chart on Sheet 5/5).
NC 58 has been labeled on the vicinity map.
Parking lot dimensions are shown on Sheet 2, 3 and 4 of the drawings.
Drainage areas have been outlined with a bold line as shown on pages
2,3,445.
Volumes were computed using the Rv(runoff coefficient) method.
Thank you for the helpful information.
The volumes for all calculations (supplement sheets) are based on the
1.5" runoff.
Pipes lengths have been revised in the applications.
There are two copies of the drawings (5 sheets) and two copies of each
supplement. Please continue your review and advise if there are comments.
5 i ncerely,
(!rohn'P. McLean, P.E.
Cc: Larry Watson FAX [phone]
Carol Angus FAX [phone]
f i b e: s ea oa t b WQ I a-o b-oz

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--Michael F. Easley, GbVernor:-__-__ -
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
October 2, 2002
Mr. Larry Watson, Vice President
Coastal Land Venture, Inc.
8201 Emerald Drive
Emerald Isle, NC 28594
Subj ect: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 020804
Sea Oats Village
Carteret County
Dear Mr. Watson:
The Wilmington Regional Office received a Stormwater Management Permit Application
for Sea Oats Village on August 2, 2002. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue
the stormwater review:
1. Please either delineate all wetlands on site, disturbed or undisturbed, or note on
the plans that none exist.
2. Please provide 4 original signature pages for each of the four infiltration
supplements. Photocopying the signature page is not allowed, per the Attorney
General's Office.
3. Please provide consistent design calculations, i.e., the same for each trench,
which indicate all the steps leading up to the required volume calculation. For
example, the required storage volume on sheets 2/5 and 3/5 is simply stated as
" cubic feet", whereas on sheets 4/5 and 5/5, an actual calculation is
provided.
4. Please either provide a bypass for the excess design storm, or provide storage for
the runoff from a 4.5" event. The rules require infiltration systems to be offline,
i.e., the bypass of the excess design storm must occur prior to the runoff entering
the infiltration system. In this case, a separate overflow pipe from the oil separator
set at the top elevation of the trench to a 50' vegetated filter will meet the
regulations.
5. Please provide a 50' vegetated filter for the overflow from all infiltration systems.
Show and specify the flow spreader mechanism, inverts, slopes and the grass type
to be planted in the filter.
6. Please revise all trench overflow elevations to correspond to the top elevation of
the trench. For #1, this would be 14.4, not 14.9 as shown, etc.
7. Please label Highway 58 on the vicinity map.
8. Please provide parking lot and sidewalk dimensions.
NCDENR
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

Mr. Watson
October 2, 2002
Stormwater Project No. SW$ 020804
---------------------------------------------------
9. Please label the drainage area associated with sheet 2/5 on the plan sheet. The
_addition of the- oil separator has caused some previously shown items to betaken
off the plans.
10. The required volume to store must be calculated over the entire drainage area, not
just the built -upon area. For example, in Trench #4, the 1.5" required volume is:
Volume to store (Rational method);
Cc = ((4550 x l) + (6423 x 1) + (46923x.20))157869 = .35
Volume = .35 x 57869 x (1.5/12) = 2532 cubic feet
Volume to store (Rv method):
Percent impervious = 19%
Rv = .05 + .009(19) = 0.22
Volume = 0.22 x 57869 x (1.5/12) = 1599 cubic feet
By using the Rv method, the volume is reduced sufficiently to show that it can be
contained in the trench as provided on the plans. Please decide which volume
method you will be using and correct and revise the application as needed.
11. The design volume reported on the State's application should correspond to the
calculated State's minimum 1.5" runoff volume, not the 2" storm. You need not
demonstrate compliance with Emerald Isle's stormwater ordinances to DWQ. The
provided volume shown on page 2 of the supplement is sufficient to demonstrate
that you are providing more volume than is required under State regulations.
12. Please revise the pipe lengths for Trenches 1, 2, and 4 on the supplements. In
Trench #1, for example, there are 3 sets of 125' long infiltration piping. Therefore,
the length of 36" pipe provided is 3 x 125 or 375', not 125'. You can note on the
supplement out to the side of the pipe length that there are 3 lengths of 125' each.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received by this Office prior to November 2, 2002,
or the application will be returned as incomplete. The return of a project will necessitate
resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for
a time extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information. The
Division is allowed 90 days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.

Mr. Watson
October 2, 2002
Stormwater Project No. SW8 020804
---------------------------------------------------
Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. All original
documents must be returned or new originals must be provided. Copies are not acceptable. If
you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:IWQSISTORMWATIADDINF0\?-0021020804.00T
cc: Linda Lewis
John McLean, P.E.
Emerald Isle Building Inspections
a

Permit No. 5W S 0 20E0 �-
(to be, provicicil br
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER IMANAGE�iMENT PERMIT APPLICATION FORNI
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This farm maybe photocopied for use as an ari.,inal
DWQ Stomiwa.ter Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details. Y
1. PROSECT INFORitiIATION
Project Name: �2EA 45 y I LAGG —:
Contact Person: tlaw �AL" Phone Number: ( Z-2ZI 393 - ZZ 19 ,
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
work -sheet applies to: Trench in Drainage Area
(from. p1a>v) 0-om Forn: Sit'U--101)
11. DESIGN INFORIMATIO\ (attach supporting calculations documentation):
,V.
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type
NQ9kAPN
Infiltration Rate
in/hr or cf/hrisf (circle appropriate units)
SHWT Elevation
fmsl (Seasonal High U'ater Toble elevation)
Trench Design Parameters`)
Design Volume
� fL
0 cG"
Design Storm
y
inch event (1.5 inch event frS.4 itvters, I inch eventfor others)
Drawdown Time
days
Perforated Pipe Size
inch diameter 7j ear-&
Perforated Pipe Length
(� �25 ; ft.
No. Observation Wells
(mica he required on a case -by -ease basis)
Stone Tyq)e (if used)
M RRL c�2C h, �,Qy ,Qd 3-�a l it
Stone Void Ratio
Trench Elevations (in feet
nwan sea level)
Bottom Elevation
+�.Cp fins]
Storage/Overflow Elevation`. fm;l .
_,

Permit No. (b U oG o Y6 `_t'
(to be provident hr D 4 Q)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STOR.MWATER klANAGEVIENT PERNUT APPLICATION FORNI
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater tManaeement Plan Review,.
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, desi;n calculations, and plans and specifications
showing all storm«-ater conveyances and system details. 4
It
I. PROJECT ENFOIbNIATION
Project Name : —�5m. OTC V fLLAGP--
Contact Person: .�04's WLEAN Phone Number:
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench in Drainage Area
(from plums) (/i-om Form SWU-101)
II. DESIGN INFOMMATIO\ (attach supporting calculations/documentation):
Soils Report Summary (based upon an acntal field investigation and soil borings)
Soil Type
Infiltration Rate � in/hr or cfihr/sf (circle appropriate emits)
SHWT Elevation '} 7. 6> fmsl (Seasonal High crater Table elevation)
Trench Design Parameters
Design Volume 32• ti 5 c-f.
Design Storm 2 inch event (1.5 inch event forSA waters, 1 inch eventfor others)
Drawdown Time S days
Perforated Pipe Size _�_ inch diameter
Perforated Pipe Length 120 J ft.
No. Observation Wells Onell' be required On a arse-ht--case basis)
Stone Type (if used) MAQL• C 344 t -1-a 1 /Z" 56g-eam)
Stone Void Ratio • 35
Trench Elevations (infect mean seer level)
Bottom Elevation t �• �G fmsl
Storage/Overflow Elevation
Form S %t U-I07 1,1,e 3.1)9 P;?a� C) .

Permit No. ��6Yq a 4
(to he pro�id•c1 ht DiL'p1
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORNRVATER MANAGEMENT PERMIT APPLICATION FOR`1
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be phorocopied for use as an original
DWQ Storrnwater Nlanag_rment Plan Review:
A complete stormwater managementW plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system detai is.
I. PROIECT INFORMATION
Project ?`tame : EA ON"F-;, V ILLAGG_
Contact Person: _ J()AiJ Mgj�AM _ Phone Number: (29 z) 313 - ZZ V i
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
work -sheet applies to: -French in Drainage Area � r _
Vronr plans) Y-om Form SWU 101)
11. DESIGN' INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based itpon an actual field investigation and soil borings)
Soil Type NI//i��N
Infiltration Rate 4P in/hr or cf/ltr/sf (circle appropriate units)
SHWT Elevation fmsl (Seasonal High Jfater Table elevation)
Trench Design Parameters r
Design Volume c.f."
Design Storm �� inch event (1.5 inch event far S4 waters, 1 inch event for others)
Drawdown Time �. b —' days
Perforated Pipe Size inch diameter
Perforated Pipe Lent,th �' `% Q ft.
No. Observation Wells (mar he required on a case-h.v-case basis)
Stone Type (if used) M ARL. 11 11 Ixl�51� �D
Stone Void Ratio • 75 '3/4 i l t'Z C RSA . CL N
Trench Elevations (in feet mean sea level)
Bottom Elevation Q • fmsl
Storaoc/Overflow Elevation 4
ForEnSWLJ-t07 K;-%, .99 F'a-t ] o

PermIt No. �—f&9 U20&4
(to be provides: hY D;VQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORVIWATER 1MANAGEMENT PERLIIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stornnvater Manavement Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stomiwater conveyances and system details.
t•
I. PROJECT INFORMATION
Project Name: 15 s \11 LLQ6i _
Contact Person: J tW LE N Phone Number. ( ZyZ S413 • Zz t 9
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worlcsheet applies to: Trench in Drainage Area
(from plans) (%rom Form SWU-101)
H. DESIGN INFO RtiIAT10N (attach supporting calculations, documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type N"AA
Infiltration Rate 6 inlhr or cf/hrlsf (circle appropriate units)
SHWT Elevation + T. (o_ fmsl (Seasonal Nigh Water Table elevation)
Trench Design Parameters ��Q
Design Volume 1 c.f. 4•S ` vol
Design Storm Z inch event (1.5 inch event for S4 waters, I inch event for others)
Drawdown Time b . days
Perforated Pipe Size inch diameter
Perforates€ Pipe Length ft. ;f
No. Observation Wells —'a (ingi' he required on a case-bt•-case hasi_r) 4 r' It
Stone Type (if used) a 14 ei ?4xt�iq 31C 7a Z r�G2E6N
Stone Void Ratio •�J�7 �]
Trench Elevations (in feet »resin sea lct,el)
Bottom Elevation + a• � fmsI
StoraoelOverflow Flcvation 13 •� fma =
FFonnS%VU-10 Kc ,.0k)

John P. McLean Engineering Associates
106 Manatee Street
Cape Carteret N.C. 28584
TEL [phone]
FAX [phone]
E-mail: [e-mail]
September 11, 2002
Ms. Noelle Lutheran
NCDENR - Water Quality
127 Cardinal Drive Extension
Wilmington, N.C. 28405
Re: Sea Oats Village - Emerald Isle
Dear Ms. Lutheran,
Attached hereto you will find a revised five (5) page set of plans for referenced
project. I originally sent you the package on July 31'. Since that time the
Town of Emerald Isle required an addition of a sand/oil separator tank for each
infiltration pipe. You already have in your possession the specifications, the
application and a check for four hundred twenty dollars ($ 420.00).
The project has received review and approval from Land Quality for Sedimentation
and Erosion Control. Please remember the Town of Emerald Isle requirements are
for the two inch event vs 12 required by DWQ.
I understand the package will be reviewed by Ms. Lewis, but I have addressed the
revision to your attention because I sent the application to your attention last
month.
Sincerely,
n P. McLean
e losures: 2 copies of revised plans
cc: Larry Watson, Owner
F'de; 5enOntsDWQ7.32.Q2

�86 aLy�y
. John P. McLean Engineering Associates
106 Manatee Street
AUG 2 2902 3
.0
Cape Carteret N.C. 28584
TEL [phone]
FAX [phone]
E-mail: [e-mail]
July 31, 2002
Ms. Noelle Lutheran
NCDENR - Water Quality
127 Cardinal Drive Extension
Wilmington, N.C. 28405
Re: Sea Oats Village - Emerald Isle
Dear Ms. Lutheran,
Attached hereto you will find a five (5) page set of plans for referenced project.
• You will also find specifications for the project attached. The owner is Larry
Watson, who has signed the application and included a check for four hundred -
twenty dollars ($ 420.00).
The project is scheduled for review by the Town of Emerald Isle this month. We
realize however, there is a backlog of projects in your department. You may also
know that Emerald Isle requires storage for the 2 inch event, so the project is
designed appropriately. I have not submitted the Sedimentation Plan but it will
be sent to Land Quality as soon as next week.
Please advise if there are question or comments.
I
cerely,44
hn P. McLean
losures: 2 copies of plans/specification
2 copies of form 5WU-101 and SWU-107
check ($420)
cc: Carol Angus, EIPB
Larry Watson, Owner
File: Seo0ots0 WQ7.31.02

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Licensed Soil Scientist
Jun 12, 2002
John McLean PE
John P McLean Engineering Associates
106 Manatee Street
Cape Carteret NC 28584
]RILE CE IVE D
AUG 0 2 2002
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PROD #
REPORT
To: Whom It May Concern
Subject: Proposed Sea Oats Village 2.902 acre project site, between Bogue inlet Drive and
Holly Street, a portion fronting on Emerald Drive (Hwy 58), Emerald Isle NC
In a follow up to our conversations earlier this morning, the last digital files you provided
by e-mail came through just fine and provided the topographic information needed to complete
the soil assessment correlation on the subject site. On 5/23/02 a soil evaluation was performed
on the above referenced site, as shown on the map entitled Survey For William U Farrington by
Pate Phillips and Associates PA, last revision dated 615102. The site inspection evaluation was
for the purpose of determining the soil limitations for design and installation of stormwater
management infiltration systems conforming to NCAC TISA : 02H .1000. I offer the following
observations and recommendations for your consideration.
No wetlands per se were found on the subject parcel but the ordinary high water mark of
Piney Creek does qualify as "waters of the US". It is obvious that this water body was at least
partially dredged at one time and that the spoil materials were placed in the present buffer area
at a time substantially predating the Clean Water Act. If no activities are proposed in or near the
water body or the mandated 50' buffer, there will be no permit requirements under the
regulatory jurisdiction of the Army Corps of Engineers.
Soil sampling was performed along a transect west to east in the interdunal trough that
offered the lowest elevations on the parcel outside of the Piney Creek buffer area. Other than
identifying wetland characteristics, no soil sampling was performed in the 50' buffer assuming
that no activities will occur in that area. The elevations of the profile sampling started at or near
9'f MSL, 10'± MSL and proceeded up to 16'± MSL on the Holly Street end of the parcel.
Except for the first sample at the topo grid cut 50' from Bogue Inlet Drive, all of the soils
were found to be various depths (I' to 8'+) of wind deposited sand most similar to the Newhan
soil series over older dune geomorphology most similar to the Carteret County variant of the
Fripp soil series. Standard abbreviated NRCS description and interpretation data for both series
is attached to this report as addendums.
page 1 of 4
I20 Balsam Road ,Jacksonville NC 28546-8508
(phone Er fax: [phone]) (e-mail: wragland@ ec.rr com)

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'Subject : Proposed Sea Oats Village, Emerald Isle, NG
Jun 12, 2002
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An even older buried soil surface most similar to a somewhat poorly drained Duckston
taxadjunct was found at the lowest part of the trough 50' from Bogue Inlet Drive. As in most of
the cases where I can identify profiles that conform to MRCS standard descriptions, I use the
MRCS data at the lowest Ksat values of that series to take into account the potential long term
clogging of the infiltration surface. I therefore recommend that the design infiltration rate not
exceed 6.0"/hour.
When the soil wetness colors in the trough transect were plotted and converted to
elevations in mean sea level (MSL) (i.e 4.8'+_ MSL @ 50' from Bogue Inlet Drive, 5.6'f MSL
@ 150' from Bogue inlet Drive, 7.5'f MSL@ the western limits midway on the left boundary of
the Hwy 58 frontage etc), the elevations had a very consistent slope of 0.8 to 09 percent and
then leveled off on the Holly Street end of the tract. To assure the minimum 24" separation from
the infiltration system invert to soil wetness colors and to optimize design alternatives for your
adjustment to zoning design and other regulatory requirements, I offer the following
recommendations on the minimum invert and horizontal locations for the stormwater
management infiltration systems.
It is may understanding that the on -site sewage treatment and disposal system is proposed
north of the NIF Lee Van Winkle lot and west of the Bogue Banks Water Corporation well site.
All stormwater infiltration systems should be kept at least 50' from any part of that system to
assure minimal impacts during potential mounding after storm water precipitation events. When
that area is omitted from consideration for stormwater infiltration systems, all of the remaining
parcel to the west to Bogue Inlet Drive can easily provide the minimum 24" separation if the
stormwater infiltration invert is placed at or above 7.6' MSL. All of the remaining parcel to the
east to Holly Street can easily maintain the 24" separation if the stormwater infiltration invert is
placed at 9.6' MSL.
I ,avne Rq arl and hereby certify that I am a Licensed Soil Scientist with expertise in the
assessment of soil morphology characteristics indicative of soil wetness and hydraulic
conductivity conditions ; that the above findings are based on the site conditions in affect on
MaY13. 2002 , and ; that all of the above statements are true and correct to the best of my
knowledge and experience.
Copy : William U Farrington
page 2 of 4

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STANDARD NRCS SOIL DESCRIPTION & INTERPRETATION DATA
Fripp
. Taxonomy : Typic Quartzipsamment; sandy; siliceous; thermic; uncoated
Land Forms : barrier island, beach ridge, sand dune
Drainage Classification : excessively well drained
Typical Horizon Depths : 0-5 5-80
Typical Horizon Textures : fine sand, sand fine sand, sand
Unified Classification : SP, SP-SM SP, SP-SM
Ksat Range: 6.0-20"/hour 6.0-20"/hour
A ; 0-5" ; grayish brown (10YR 5/2) fine sand ; common medium faint light gray (2.5Y 712) mottles ;
single grained ; loose ; common fine and medium roots ; about 5 percent of the grains are black and
dark brown ; medium acid; clear wavy boundary. 1-8"
Cl ; 5-21" ; pale yellow (2.5Y 7/4) fine sand ; many medium distinct light brownish gray (10YR 612)
mottles ; single grained ; loose ; common fine and few medium roots ; about 5 percent of the grains
are black and dark brown ; medium acid; gradual wavy boundary. 5-27"
C2 ; 21-52" ; very pale brown (10YR 713) fine sand; single grained ; loose; few fine and medium roots ;
about 5 percent of the grains are black and dark brown ; slightly acid ; gradual wavy boundary. 20-
54"
C3 ; 52-90" ; white (2.5Y 8/2) fine sand ; single grained ; loose ; few irregular horizontal light brownish
gray (I OYR 6/2) streaks about 1/8 inch thick; about 5 percent of the grains are black and dark brown;
. slightly acid.
Content of silt plus clay to more than 80 inches is less than 5 percent. Reaction ranges from extremely
acid to mildly alkaline throughout. Few to many fine dark minerals and few shell fragments are in
some pedons. The A horizon has a hue of 1 OYR to 5Y, value of 4 to 7, and chroma of 1 or 2 and is
fine sand or sand. The upper C horizon dominantly has a hue of 1OYR, value of 7 or 8, and chroma
of 1 to 6. It ranges from 7.5YR to 2.5Y, value of 5 to 8, and chroma of 3 to 8. The lower C horizon
dominantly has a hue of 1 OYR to 5Y or is neutral, value of 6 or 8, and chroma of 0 to 3 and ranges to
a chroma of 3 to 8. The C horizon is sand or fine sand. Low chroma are not due to wetness.
0 page 3 of 4

STANDARD NRCS SOIL DESCRIPTION & INTERPRETATION DATA
Newhan
Taxonomy : Typic Quartzipsamment; sandy; siliceous; thermic; uncoated
Land Forms : barrier island, beach ridge, sand dune
Drainage Classification : excessively well drained
Horizon Stratification : 0-64
Horizon Texture : fine sand, sand
Unified Classification : SP,SP-SM
Ksat Range : 207hour
Al ; 0-2" ; grayish brown (IOYR 5/2) fine sand ; single grained ; loose ; few fine roots ; mildly alkaline ;
clear wavy boundary. 0-3"
C1 ; 2-50" ; light gray (IOYR 7/2) fine sand ; single grained ; loose ; few fine roots in upper part of
horizon ; common small fragments of colored marine shells ; 5 percent of the sand grains are black
and dark brown; mildly alkaline ; gradual wavy boundary. 30-60"
C2 ; 50 72" ; light gray (I OYR 7/2) sand ; single grained ; loose ; about 5 percent of the grains are black
and dark brown ; common small, medium and large fragments of marine shells ; few whole shells ;
mildly alkaline.
Thickness of the A and C horizon is more than 72 inches. The soil is neutral or mildly alkaline.
Calcareous shell fragments mostly of sand size, make up 0 to 25 percent of the soil by volume. The
soil contains few to common grains of dark minerals. The A horizon, where present, is gray (10YR
5/1, 6/1), or grayish brown (10YR 5/2) fine sand or sand. The C horizon has hue of IOYR to 2.5Y,
value of 6 to 8 and chroma of 0 to 4. It is fine sand or sand,
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July 31, 2002
SPECIFICATIONS
Sea Oats Village - Storm Water Plan
The property is north of NC 58 and; east of Bogue Inlet Drive on Emerald Isle in
Carteret County. Most of the tract is wooded. Piney Creek and Bogue Banks
Water Corporation border the project on the north side, Bogue Inlet Drive on the
West side, NC 58 on the South side and Holly Street on the East side. The tract
contains 2.902 acres. The Town of Emerald Isle requires storage (infiltration
devices) for the two (2) inch event. The Town has also required a thirty-five (35)
foot buffer south of Piney Creek. There will be no land occupied within the 35
foot buffer. There is a very small portion of the property identif led as 404
Wetlands (Corps of Engineers jurisdiction) which will be left undisturbed. The
wetlands are located along the banks of Piney Creek.
The engineer is :John P. McLean, P.E. The surveyor is: Pate Phillips, PLS
106 Manatee Street Pate Phillips & Associates, P.A.
Cape Carteret, N.C. 28584 406 Corbett Avenue
Tel: [phone] Swansboro, N.C. 28584
FAX: [phone] Tel: [phone]
FAX . [phone]
Flood maps indicate the entire area to be disturbed is within the ZONE X
flood classification. See attached map (370047-0002-D) dated August 17, 1998
(Town of Emerald Isle, North Carolina, Carteret County)
TREATMENT OF STORMWATER RUNOFF
The development plan includes the construction of two buildings a connector
driveway between the buildings and associated adjacent parking lots.
This is a new project. Development is planned in two different areas of the same
parcel. The project along NC 58 is identified as a 65 foot wide by 150 foot long
building which will contain a proposed restaurant, three offices and three retail
stores.

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This plan provides for collecting runoff from different areas of the property
numbered I through IV. Entry to all devices will be from standard 2 x 2 frame
and grates which will be mounted in the parking lots in all locations.
All impervious areas on the NC 58 building will be retained on site. There are no
additional areas which drain on to this property.
This plan also provides for collecting the runoff from a 2 inch event for the area
on the south side of the Rogue Inlet Building as well as for collecting the runoff
from a 2 inch event for the area on the west side of the Bogue Inlet Building.
This collection device is a one barrel assembly which requires an entry pipe of
smaller diameter in the flow line.
The plan also provides for collecting the runoff from a 2 inch event for the area on
the north side of the Bogue Inlet Building. This collection device located on the
north side as shown on Sheet 5 of 5.
All devices are located either within or close to the center of the parking/drive
areas. All devices can overflow downstream from the initial collector to the final
collector. If all devices fill, the overflow will be directed northward to the
adjacent 404 wetlands (Piney Creek) which is shown on several sheets of the plans.
There is a vegetated buffer located near the overflow of device # IV as shown on
the plans.
Erosion Control measures include Construction Entrances (2), Temporary Sediment
Retention Basins and an overflow for all devices constructed of sod (Bermuda or
Centipede).
Calculations: See plans 2 of 5 through 5 of 5 for calculations and seal of
engineer.
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0 SAFETY IN THE WORK PLACE
Personnel safety is of paramount importance in all cases. The contractor shall
call U-LOCO or NO -CUTS prior to beginning work. The contractor shall erect
appropriate signs, issue personnel traffic vests, flags and ensure safety in all
operations, especially around NC 58 and Bogue Inlet Drive with regard to vehicular
traffic.
All operations related to excavation, backf ill, lifting, erecting, transporting
materials, searches for,utility lines, unloading materials and all work pertaining to
construction operations shall be carefully conducted within safety guidelines of all
local, state and national safety standards. The contractor shall be directly
responsible for these safety measures.
CONSTRUCTION (Storm Water Devices)
Pipes which are detailed on the sheets shall be carefully manufactured and
assembled off -site, coated with galvanization (paint bulkheads to meed DOT
minimum standards), equipped with galvanized hugger bands, and galvanized
connector bolts, washers and nuts. The pipe shall be carefully unloaded on the job
site to prevent damage to shape or coatings. Lifting straps shall be only those of
accepted industry standard. No damaged lifting straps or cables shall be allowed
on the job site.
Excavation shall be carefully completed, making certain to observe surrounding
materials or equipment. The contractor shall clear the site prior to installation
and will be responsible for maintaining a safe work place.
As soon as the holes are excavated, geo-textile fabric shall be placed to ensure
the cross-section in properly installed. Aggregate shall be filled, pipe installed
and backfilled and the geo-textile fabric wrapped complete around all corners.
The geo-textile fabric shall be overlapped in all instances (24" minimum overlap)
and care shall be exercised to ensure tightly bound connections at risers. In all
instances of these storm water infiltration pipes, grades are very important. The
pipes shall all be installed level. When covering the entire apparatus, there shall
be another level of geo-textile installed to ensure proper driveway and parking
bearing. This is important and is herein re -stated. There shall be a final layer of
geotextile covering (industry recommended) placed on top of every apparatus as a
• measure of protecting the installation from crushing or settling as a result of

16 future traffic. If there are questions pertaining to this installation, the
contractor shall request assistance from the Engineer.
Maintenance Concerns:
Therefore the following steps will be recommended for a maintenance plan.
a. Remove silt within 48 hours after each 2" event.
b. This silt shall be raked or shoveled and discarded as needed, but not
discarded in an infiltration basins.
C. Leaf and organic debris contributes sealing problems and must also be
removed on the same schedule as the runoff siltation from the parking
lot.
Benchmarks: Provisions shall be made by the owner to set a bench mark for
all devices. The elevation required for cleanout of device
# I + 10.5'
# II + 10.0'
# III + 10.0'
# IV + 10.0'
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Provision for assurance of compliance:
Notice is hereby delivered and accepted which binds the owner to
provisions of complete installation and maintenance of all devices in
the application (I, IT, III & IV).
File:5ea0ats5torm7.31.02
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