SW7060113_CURRENT PERMIT_20191120

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�/��0(IG`�
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
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YYYYMMDD

'JAI A60
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
NORTH CAROL.INA
Environmental Quality
November 20, 2019
The Fund for Sandy Point North Carolina, LLC
Attention: Sam Young, Manager
P.O. Box 789
Edenton, NC 27932
Subject: Permit No. SW7060113 Renewal
Sandy Point, Phase One
High Density Stormwater Project
Chowan County
Dear Mr. Young:
The Washington Regional Office received a Stormwater Management Permit Application
for renewal of permit SW7060113 on October 18, 2019. Staff review of the submittal has
determined that the permit can be reissued. We are forwarding Permit No. SW7060113
dated November 20, 2019, for the construction and operation of the subject project.
This permit, upon its effective date, will replace all previous State Stormwater permits for
this site. This permit shall �e effective from April 19, 2020 until April 18, 2028 and shall
be subject to the conditions and limitations as specified therein, and does not supersede
any other agency permit that may be required.
If any parts, requirements, or limitations contained in this permit are unacceptable, you
have the right to request an adjudicatory hearing upon written request within thirty (30)
days following receipt of this permit. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714.
Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please
contact me at [phone].
Sincerely,
Roger K. Thorpe
Environmental Engineer
D- E
N er E„vam�nw o..e:r�
North Carolina Department of Environmental Quality I Diviston of Energy. Mineral and Land Resources
Washington Regional Office ', g43 Washingtcro Square Mail f Washington, North Carolina 27884
2S2Q46.6481

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
The Fund for Sandy Point North Carolina, LLC
Sandy Point, Phase One
Chowan County
FOR THE
construction, operation and maintenance of stormwater management systems 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 Energy,
Mineral, and Land Resources (Division) and considered a part of this permit for infiltration
trenches, grassed swales, bioretention areas, and a wet detention pond to serve the Sandy
Point Phase One located on SR 1114 in Chowan County.
This permit shall be effective from April 19, 2020 until April 18, 2028 and shall be subject to
the following specified conditions and limitations:
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 2 of this permit, the Project Data Sheet.
3. Approved plans and specifications for this project are incorporated by reference and
are enforceable parts of the permit.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the projects
will be recorded showing all such required easements, in accordance with
approved plans.

5. Phase One is permitted for 132 lots. The allowed square feet of built upon area
per lot is listed in Attachment A of this permit.
PROJECT DATA
Project Name: Sandy Point Phase One
Permit Number: SW7060113
Location: Chowan County
Applicant: The Fund for Sandy Point North Carolina, LLC
Receiving Stream: UT to Albemarle Sound
Classification of Water Body: SB
Total Site Area: 27.16 ac
Total Impervious: 12.79 ac
Infiltration Systems
Drainage area #:
A
B
C
D
Size:
12.97 ac
1.88 ac
3.24 ac
9.07 ac
Impervious area:
5.96 ac
0.95 ac
1.72 ac
4.16 ac
Required Storage:
29,650 cf
4,454 cf
7,826 cf
20,720 cf
Provided Storage:
37,688 cf
4,465 cf
8,539 cf
28,494 cf
Bioretention Areas
Basin # Storage Volume
Al
686 cf
A2
686 cf
A3
686 cf
A7
1,123 cf
A8
1,023 cf
A29
223 cf
A30
10,624 cf
B2
639 cf
B3
1,391 cf
C5
3,432 cf
D15
189 cf
D24
884 cf

Overflow from areas C & D flows to Wet Pond
Wet Pond Depth: 6.5 ft
Provided Storage Volume: 359,875 cf
Provided Surface Area: 79,160 sf
Controlling Orifice: 14 — 2.0 inch holes @ elevation 2.5 ft
6. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any
vegetative practices (such as swales) shown on the approved plans as part of the
stormwater management system without submitting a revision to the permit and
receiving approval from the Division.
7. The following items will require a modification to the pen -nit:
a. Any revision to the approved plans, regardless of size
b. Project name change
C. Transfer of ownership
d. Redesign or addition to the approved amount of built -upon area
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should
require a modification to the permit.
8. The Director may notify the permittee when the permitted site does not meet one or
more of the minimum requirements of the permit. Within the time frame specified in
the notice, the permittee shall submit a written time schedule to -the Director for
modifying the site to meet minimum requirements. The permittee shall provide
copies of revised plans and certification in writing to the Director that the changes
have been made:
II. SCHEDULE OF COMPLIANCE
1. The permittee will comply with the following schedule for construction and
maintenance of the stormwater management system.
a. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surfaces except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas
of the system will be repaired immediately.

2. The facilities must be properly maintained and operated at all times. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance
must occur at the scheduled intervals.
3. All permeable paved areas shall be vacuum swept at least twice per year (every 6
months).
4. The permittee shall at all times provide the operation and maintenance necessary to
assure the permitted stormwater system functions at optimum efficiency including,
but not limited to:
a. Semiannual schedule_ d inspections (every 6 months)
b. Sediment removal
C. Mowing and revegetation of side slopes
d. Immediate repair of eroded areas
e. Maintenance of side slopes in accordance with approved plans and
specifications
f. Debris removal and unclogging of outlet structure, orifice device and catch
basins and piping.
5. Records of maintenance activities must be kept and. made available upon request to
authorized personnel of the Division. The records will indicate the date, activity,
name of person performing the work and what actions were taken.
6. 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 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. Mail
the Certification to the Washington Regional Office, 943 Washington Square Mail,
Washington, North Carolina, 27889, attention Division of Energy, Mineral, and land
Resources.
8. A copy of the approved plans and specifications shall be maintained on file by the
Permittee for a minimum of five years from the date of the completion of construction.
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 Permittee, a formal permit
request must be submitted to the Division 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.

2. Failure to abide by the conditions and limitations contained in this permit may subject
the Permittee to enforcement action by the Division, in accordance with North
Carolina General Statute 143-215.6(a) to 143-215.6(c).
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 stormwater management systems.
5. 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.
6. This permit is effective from April 19, 2020 until April 18, 2028. The Permittee, at
least six (6) months prior to the expiration of this permit, shall submit in writing a
request for renewal along with appropriate application fee.
7. The issuance of this permit does not preclude the Permittee from complying with any
requirements contained in the NPDES Phase II permit.
Permit issued this the 20 th day of November, 2019.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for
S. Daniel Smith, Director
Division of Energy, Mineral, and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW7060113

The Fund for Sandy Point North Carolina, LLC — Sandy Point Phase One, Chowan County
Stormwater Permit No. SVV7060113
Designer's Certification
I
as a duly
Registered Professional Engineer in the State of North Carolina, having been authorized to
observe (periodically/weekly/full time)
the construction of the project,
for
(Project)
(Project Owner)
hereby state that to the best of my abilities, due care and diligence was used in the
observation of the project construction such that the construction was observed to be built
within substantial compliance and intent of the approved plans and specifications.
Signature
Registration Number
Date

Attachment A
SANDY POINT - PHASE
ONE
Allowable Impervious
Coverage
LOT #
Allowable
Coverage
1-4
3,000 sf
5
3,512 sf
6-16
3,115sf
17 35
725 sf
36 - 37
1,506 sf
38
2,545 sf
39
2,316 sf
40
2,545 sf
41 - 42
2,371 sf
43 - 44
2,750 sf
45 - 51
2,316 sf
52
2,574 sf
53
1,964 sf
54 - 58
2,316 sf
59
2,454 sf
60 - 61
2,133 sf
62
2,170 sf
63 - 64
2,708 sf
65
2,170 sf
66 - 86
2,145 sf
87
2,530 sf
88 - 92
2,444 sf
93
1,700 sf
94 - 95
1,506 sf
LOT #
Allowable Coverage
96 - 99
2,030 sf
100
2,519 sf
101 - 107
1,715 sf
108
2,519 sf
109
2,446 sf
110-113
1,656 sf
114 - 120
2,024 sf
121
2,599 sf
122 - 126
1,720 sf
127
2,085 sf
128 - 132
2,024 sf

Viako
ROY COOPER
Governor
MICHAEL S. BEGAN
Secretary
S. DANIEL SMITH
iNrector
NORTH CAROLINA
Environmental Quality
September 25, 2019
The Fund for Sandy Point North Carolina, LLC
Attention: Mr. Sam Young, Manager
P.O. Box 789
Edenton, NC 27932
Subject: Stormwater Permit No. SW7060113 Renewal
Sandy Point, Phase One
High Density Stormwater Project
Chowan County
Dear Mr. Young:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7060113 for a stormwater treatment system consisting of
infiltration trenches, grassed swales, bioretention areas and a wet detention pond to
sere Sandy Point Phase One in Chowan County expires on April 18, 2020. This is a
reminder that permit renewal applications are due 180 days prior to expiration. We do
not have a record of receiving a renewal application.
.If you wish to maintain this permit, please submit a completed permit renewal
application along with a $505.00 fee for permit renewal. Permit application forms for
renewal can be found on our website at:
httpsJ/deq,nc.gov/about/divisiQns/energy_-mineral-land-resources/energy-min Q ral-iand-
rtiles/stormwater-program/p,Q5 -construction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit if development has occurred. Failure to maintain a permit subjects the owner to
assessment of civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
roger.thorpe [e-mail].
Cc Quible & Associates, P.C. .
Sincerely,
Roger K. Thorpe
Environmental Engineer
®� North Carolina Department of Environmental Quatlty j Division of Energy, Mineral and Land Reswirc;es
Washington Regional office 1 943 Washington Square Mall I Washington, North Carolina 27889
eeewe.�.n.io..0,1 /"� 252-94&6481

nFMI R HRF nNI Y
Date Received
Fee Paid
Permit Number
1-011& 1101
SC J - o o
S lni �l 0113
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H.1045(3). the current permit holder shall renew their high density permit 180 days
prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60.(c). This application form is for permit renewals only.
A. PROJECT INFORMATION
RECEIVED OCT 1 8 2019
1. State Stormwater Permit Number: SW70601 13
2. Project name: Sandy Point, Phase One �R
3. Project street address: 215 Sandy Point Road
City: Edenton County: Chowan ZIP:
27932
4. What, if any, changes have been made to the project as permitted? NIA
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at: https://deg.nc.gov/about/divisionsienergy-
mineral-land-resourcesle nergy-mineral-1and -ruleslstormwater-programlpost-construction.
B. PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at.-.https:/Ideg.nc.gov/about/divisions/energy-mineral-land-
resourceslenergy-mineral-land-ruleslstormwater-pro. rq am/post-construction. State Storm water Permits do not
automatically transfer with the sale of the property-
1 . Current Permit Holder's Company Name/Organization: The Fund for Sandy Point North Carolina, LLC
2. Signing Official's Name: Sam Young
3. Signing Official's Title: Manager
4. Mailing Address: PO Box 789
City: Edenton State: NC ZIP : 27932
5. Street Address: 215 Sandy Point Road
City: Edenton State: NC ZIP: 27932
6. Phone: [phone] Email: sam(@dpz.com
Stormwater Permit Renewal Form Pagel of 3 May 11, 2018

9
C. SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORM. Only applications packages that
include all required items listed below will be accepted and reviewed.
Initial each item below to indicate that the required information is provided in the application package:
�XA_ 1. A permit application processing fee of $505.00 payable to NCDEQ.
'�>tv_ 2. One original signed hard copy and one electronic copy of this completed form. The signing official
named on this application to represent the current permittee must meet one of the following:
a. Corporation — a principle executive officer of at least the level of vice-president;
b. Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G.S. 57D `Worth Carolina Limited Liability Company Act;"
c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee;
d. Partnership or limited partnership — the general partner;
e. Sole proprietor; or
f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity.
N/A 3. One hard copy and one electronic copy of recorded documents required by the original permit that
have not yet been received by DEMLR, including: deed restrictions, protective covenants,
condominium/planned community declaration and easements. If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date.
�4 1 4. 0&M Agreements, Please select one:
® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit; or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me. I agree to keep this on file with the permit.
N/A 5. Designer Certifications, Please select one:
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division; or
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed; or
® The project has not yet been built.
N/A 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit.
7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC):
Provide one hard copy and one electronic copy of documentation from the NC Secretary of State,
or other official documentation, which supports the titles and positions held by the persons listed in
Section C.2 per 15A NCAC 2H. 1043(3)(b).
https://www.sosnc.gov/online services/search/by title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3
May 11, 2018

N
D. PERMITTEE'S CERTIFICATION
I, U' u ./` , the person legally responsible for the permit, certify that I have
a copy of the Permit 6nd O&M Agreem nt on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the aintenance procedures, and the site has been and will be maintained
according to the 0&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my
knowledge, corr complete. q
Signature: Date: U ( 2_6
C")
NOTARIZAT N: /�
A ���, a Notary Public for the State of
.,County of CA2e , do hereby certify
that m 0U 1G personally appeared before me
this the 9- \ day of G o. 6 �,?n 20 , and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Sea!)CH
KypTARY PU ua
Dare County
North Carolina
-- CamrrtlWon Expires ,ianua 29, 2022
Notary Signature:
My commission expires ) ~d9 -a'oaa
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018

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10/7/2019
North Carolina Secretary of State Search Results
• File an Annual ReportlAmend an Annual Report • Upload a PDF Filing • Order a Document Online -
Add Entity to My Email Notification List • View Filings • Print a Pre -Populated Annual Report form • Print
an Amended a Annual Report form
Limited Liability Company
Legal Name
The Fund for Sandy Point North Carolina, L.L.C.
Information
Sosld: 0677392
Status: Current -Active
Annual Report Status: Current
Citizenship: Domestic
Date Formed: 6/2/2003
Registered Agent: Dixon, Samuel B, Esq.
Addresses
Reg Office Reg Mailing
117 w Eden St 117 w Eden St
Edenton, NC 27932 Edenton, NC 27932
Company Officials
Mailing
1820 Sandy Point Road
Edenton, NC 27932
All LLCs are managed by their managers pursuant to N.C.G.S. 57D-3-20.
Member Manager
The Fund for New Urbanism, LLC Sam Young
450 East Las Olas Blvd., Ste 1500 P.O. Box 789
Fort Lauderdale FL 33301 Edenton NC 27932
Principal Office
1820 Sandy Point Road
Edenton, NC 27932
https:llwww.sosnc.gov/online_services/search/Business_Registration_Results 111

ROY COOPER
Governor
MICHAEL S. REGAIN
Secretary
S. DANFEL SMITH
Director
NORTH CAROLINA
Pnylronmental Quality
September 25, 2019
The Fund for Sandy Point North Carolina, LLC
Attention: Mr. Sam Young, Manager
P.O. Box 789
Edenton, NC 27932
Subject: Stormwater Permit No. SW7060113 Renewal
Sandy Point, Phase One
High Density Stormwater Project
Dear Mr. Young: Chowan County
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7060113 for a stormwater treatment system consisting of
infiltration trenches, grassed swales, bioretention areas and a wet detention pond to
serve Sandy Point Phase One in Chowan County expires on April 18, 2020. This is a
reminder that permit renewal applications are due 180 days prior to expiration. We do
not have a record of receiving a renewal application.
If you wish to maintain this permit, please submit a completed permit renewal
application along with a $505.00 fee for permit renewal. Permit application forms for
renewal can be found on our website at:
ht de .nc. ov abou i isi er --ni ra - - r e -mi a al -I• ncl-
rules/stormwater-program/post-construction. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit if development has occurred. Failure to maintain a permit subjects the owner to
assessment of civil penalties.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
ro er.thor a ncdenr. ov.
i" Cc Quible & Associates, P.C. .
Sincerely,
Roger K. Thorpe
Environmental Engineer
North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
_ Washington Regional Office 1943 Washington Square Mail I Washington, North Carolina 27889
252.946,6481

i 'N
Permit No.
RECWED (to be provided by DIYQ)
1�''�• Y� State of North Carolina _,..
JAN 1 7 2006 Department of Environment and Natural Resources � g�
Division of Water Quality
Aug zoa5
DWQ-WAF5'�ORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT /VVQ-WARD
This form may be photocopied for use as an original
DWO Stonnwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Naine: Sandy Point, Phase One
Contact Person: David A. Deel, P.E. Phone Number: ( 252 ) 261 - '3300
For projects with multiple basins, specify which basin this worksheet applies to:North outf all Pend
elevations
Basin Bottom Elevation - 4.0 ft
Permanent Pool Elevation 1, n — ? ft.
Temporary Pool Elevation 5.66 ft.
areas
Permanent Pool Surface Area 79,160 sq. ft.
Drainage Area 61.6 ac.
Impervious Area L1-- 33.9 ac.
(floor of the basin)
(elevation of the orifice) * see explanation in App. 3.3
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume 317,078 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 359,875 cu. ft. (volume detained above the permanent pool)
Forebay Volume 57,613 _ cu. ft. (approximately 20% of total volume)
Other parameters
SA/DAI
Diameter of Orifice
Design Rainfall
Design TSS Removal 2
_0.07 (surface area to drainage area ratio from DWQ !able)
" 6les (2 to 5 clay temporary pool draw -down required)
in.
85 % (minimum 85% required)
Forin S W U- 102 Rev 3.99 Page l of 4

Footnotes:
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries,
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
II. 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, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate 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. If a requirement has not been met, attach justification.
Applicants Initials
a.
�AD— b.
)A) _ _ C.
b AD d.
C.
___bA-f.
bg•
8A A h.
_---� D i.
�D J
bAb k.
The permanent pool depth is between 3 and & feet (required minimum of 3 feet).
The forebay volume is approximately equal to 20% of the basin volume.
The temporary pool controls runoff from the design storm event.
The temporary pool draws down in 2 to 5 days.
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
The basin length to width ratio is greater than 3:1.
The basin side slopes above the permanent pool are no steeper than 3:1.
A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
Vegetative cover above the permanent pool elevation is specified.
A trash rack or similar device is provided for both the overflow and orifice.
A recorded drainage easement is provided for each basin including access to nearest right-
of-way. '?' I deCXW r 1 ca y► rld H oR61 s ��
If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
AlA NI —A m. A mechanism is specified which will drain the basin for maintenance or an emergency.
Wl/1 ,6ytf1e Pu vPl
Ill. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) does 0 does not incorporate a vegetated filter at the outlet.
This system (check one) does 0 does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4

Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads— 2.75 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads _ 2.75 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanb)
Permanent Pool Elevationl_.Or
Sediment Re oval El. — 2.75''V
--------------Sediment Removal Elevation —2. 75� 75%
tlon
Bottom Ele .... 4.0' ---------------------------------------------1-25%
------
Bottom Elevation —4-'
HOREBAY MAIN POND
Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay bean.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4

7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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:
Title: Pr
Address: 1023 SW 25th AVE., Miami, FL. 33135
Phone:
Signature:
Date: � 1 U-Ph S
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
1, Aj)'S�l rp, �� �� , a Notary Public for the State of N
County of , do hereby certify that S 9� 0 v A IG-
personally appeared before me this day of �) v; u"t aC)OC , and acknowledge the due
execution of the forgoing wet detention basin maintenance quirements
CHRISTINE A. BflYt6
NOTARY PUBLIC
GARB COUNTY NC
SEAL
My commission expires /— �) , aO)
Witness my hand and official seal,
Form SWU-102 Rev 3.99 Page 4 of 4

Pen -nit No.
State of North Carolina
Department of Environment and Natural resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
(to be provided by DWQ)
RECEIVED
MAR 13 2006
DWQ-WARD
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwdter 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 : Sandy Point - Phase One
Contact Person: David A Dee1 Phone Number:
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench Roadway in Drainage Area
(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 Amended to SP ( fine' to medium sand)
Infiltration Rate 2 in or cf/hr/sf (circle appropriate units)
SHWT Elevation 5.0' fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume _9g _. ,_sn c.f.
Design Storm 1 inch event (1.5 inch event for SA waters, I inch event for others)
Drawdown Time 1 . days
Perforated Pipe Size N/A inch diameter
Perforated Pipe Length N/A ft( Underdrain not required due to permeability of SP sands)
No. Observation Wells NIA (may be required on a case -by -case basis)
Stone Type (if used) Crusted Angular stone ( less than 5% passing NO. 4 sieve)
Stone Void Ratio 40%
Trench Elevations (in feet mean sea level)
Bottom Elevation Varies fmsl (stepped grade trench system)
Storage/Overflow Elevation Varies fmsl ( stepped grade trench system)
Form SWU-107 Rev 3.99 Page I of 4

Trench Dimensions
Height
Width
1, n _ ft.
20,11 ft
1, Nefa� e.
III. REQUIRED ITEMS CHECKLIST
Length ^ !J., 0 b ft.
Volume Provided 37�, 666 cuff
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 requirement has not been met.
Applicants Initials
_ I J 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.
t J _ d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
T 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).
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
h. System is not sited on or in fill material or DWQ approval has been obtained.
Fill S�eciKrcdiiahs CO- )>L- four' is Sec Flan 0,3on o%J&le roj�t,{ sFaeci�rcuf�a• s
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.
NIZAr k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access casements to the nearest public right-of-way.
�' jl/5}-L'— 'I:-,locc-lect In commoi, CPO,
System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
m. Drainage area for the device is less than 5 acres.
x 5y3Yn, i -, de3}rlbak-cl Arod old Ctral'(A je GW&C
n. A pretreatment device ( Wer 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.
T� q. Rock used is free of fines (washed stone) and has a large void ratio.
FAD r. Side to bottom area ratio is less than 4: 1.
Form SWU-107 Rev 3.99 Page 2 of 4

i/A T 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.
N% * i u. A benchmark for checking sediment accumulation is provided.
* 5ec]i"—io 1r ar w i Ii oat"r G 5 U r Face F �e/Me�ble Pav""e'f
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.
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.
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 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 NIA* , the accumulated sediment shall be removed
from the system. * See " Maintenance Specifications" in the Design Narrative Appendix
for project specific maintenance requirements.
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 storrnwater
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: Sam Young President
Address:
Phone: 305 Date: ffiwAS
Signature:
Note: The legally responsible party should not be allomeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
I, �4 R 1 t 0 )- , , a Notary Public for the State of County of
do hereby certify that SA m personally appeared before me this
day of C�c� �� and acknowledge thte xecu ion of the forgoing infiltration basin maintenance
requirements. Wimess my ha nd o ficial seal,
SEAL My commission expires J 2' C9
CHRiSTtIhE A. ©OYLE
NOTARY PUBLIC
DARE COUNTY NC
Form S W U-107 Rev 3.99 Page 4 of 4

Permit No.
(to be provided by DWQ)
State of North Carolina RECEIVED
Department of Environment and Natural Resources
Division of Water Quality MAR 13 2006
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
DWQ-WARD
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 : Sandy Point — Phase One
Contact Person: David A. Deel, P.E. Phone Number: (252 1 261--3300
For projects with multiple infiltration systems, a supplement form must be completed for each,system. This
worksheet applies to: Trench Roadway in Drainage Area - B _
(Prom plans) (from Form SWU-101)
IL DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Amended to SP (fine to medium sand)
Infiltration Rate 2 h or cf_/hr/sf (circle appropriate units)
SHWT Elevation 6.0 ' fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume 4,454 c.f.
Design Storm 1 inch event (1.5 inch event for SA waters, I inch event for others)
Drawdown Time 1 days
Perforated Pipe Size n/a inch diameter
Perforated Pipe Length n/a ft. (underdrain not required due to permeability of SP sands;
No. Observation Wells n/a (may be required on a case -by -case basis)
Stone Type (if used) Crushed angular stone (less than 5% passing No. 4 sieve)
Stone Void Ratio 40%
Trench Elevations (in feet mean sea level)
Bottom Elevation varies fmsl (stepped grade trench system)
Storage/Overflow Elevation varies fmsl (stepped grade trench system)
Farm SWU-107 Rev 3.99 Page 1 of 4

Trench Dimensions
Height
Width
ft.
2A v ft.
* Eral e.
III. REQUIRED ITEMS CHECKLIST
Length 34 ft.
Volume Provided 4, 4 / S "" cu.ft.
** 5icfety Uclume pretlideet r�cludP�
51 c�rctgP. uirft.�� �erMeabl� f-�Ue+'
V0Ict.5
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
.1) 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,
N {��.._ 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.
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).
g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
/ h. System is not sited on or in fill material or DWQ approval has been obtained.
Fill Speeit icalld,,5 befau�d i3 0.230o oF•IG-6 pm)ecI- !Spec i�icccllans
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 r1ecorded access easements to the nearest public right-of-way.
7
Sys em captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters J.
NZA m. Drainage area for the device is less than 5 acres.
5y--0e, I-, d/31'rrbaYcl frog l 0&4dr01.,ale afea
Ub n. A pretreatment device ( fi�ter 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.
bAb 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.
r. Side to bottom area ratio is less than 4:1.
Form SWU-l07 Rev 3.99
I
Page 2 .of 4

wxl, s. Observation well(s) are provided (case -by -case basis).
DA 0 t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
ZA u. A benchmark for checking sediment accumulation is provided.
4 W,WJV11C", w0 ©"e'e3'g
IV. 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.
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.
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 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 n/a* , the accumulated sediment shall be removed
from the system. *see "maintenance Specifications" in the Design Narrative Appendix
for project specific maintenance requirements.
Form SW U-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that I am responsible for maintaining the staTnwater
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: Sam Young, President
Address: 1023 SW 25th Avenue, Miami, Florida 33135
Phone
Signature
Date: 510
Note: The legally responsible party should not die a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
I, `1 Q ]� i )'1,P j 9t J� _, a Notary Public for the State of AX-- 'County of
do hereby certify that S.0 o U f L } personally appeared before me this
day of tl —} aoar , and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand an fficial seal,
SEAL My commission expires % ! �acxj
CHRiSTiNE A. BOYLE
NOTARY PUBLIC
DARE COUNTY NC
r,
L
Form SWU-107 Rev 3.99 Page 4 of 4

Permit No.
(to be provided by DYYQ)
State of North Carolina RECEIVED
Department of Environment and Natural Resources
Division of Water Quality
MAR 13 2006
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMEN
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 stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : Sandy Point — Phase One
Contact Person: David A. Deel, P.E. Phone Number: (252 ) 261-3300 `
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench Roadway in Drainage Area C
(Prom plans) (Prom Form SWU-101)
II. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (bared upon an actual field investigation and soil borings)
Soil Type Amended to SP (fine to medium sand)
Infiltration Rate 2 n/hr r cf/hr/sf (circle appropriate units)
SHWT Elevation 6.0 } frnsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume 7,826 c.f.
Design Storm 1 inch event (1.5 inch event for SA waters, 1 inch event for others)
Drawdown Time 1 days
Perforated Pipe Size n/a inch diameter
Perforated Pipe Length n/a ft. (underdrain not required due to permeability of SP sands'
No. Observation Wells n/a (may be required on a case -by -case basis)
Stone Type (if used) Crushed angular stone (less than 5% passing No. 4 sieve)
Stone Void Ratio 40%
Trench Elevations (in feet mean sea level)
Bottom Elevation varies fmsl (stepped grade trench system)
Storage/Overflow Elevation varies fmsl (stepped grade trench system)
Form S WU- l07 Rev 3.99 Page 1 of 4

Trench Dimensions
Height
Width
1 ft.
i 7, 4 fi ft.
� AuO .
I1I. REQUIRED ITEMS CHECKLIST
Length 1.224 _ ft.
Volume Provided 6'5 3 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 2I-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
1 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.
AIA p c. Bottom of system is at least 2 feet above the seasonal high water table.
A 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).
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).
D8b g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
N /A h. System is not sited on or in fill material or DWQ approval has been obtained.
iI1 S�ectflca}�ov,s cam befvu�d 1:5 Seclid-, 0,2300 of-Uprojee+!Spec lCie afia•,s
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.
I� 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.
'* 5 y5 ieE i� Ioc-alect i- C arum&^ gffE• 5Pnre
1. Sys em captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ).
NIA* m. Drainage area for the device is less than 5 acres.
� sy5xefi i'a dl3lrj�l�'cl f�,r4u kou��lra�•,a�e area
Ub n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
_J)M 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.
q. Rock used is free of fines (washed stone) and has a large void ratio.
r. Side to bottom area ratio is less than 4: 1.
Form SWU-107 Rev 3.99 Page 2 of 4
C

-IA-t— s. Observation well(s) are provided (case -by -case basis).
Ab 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.
Gv�// nGGur Ce Su-iFu,-e o� pt e-Ek paUe. 4.
IV. 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.
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.
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 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 n/a* , the accumulated sediment shall be removed
from the system. *see "maintenance Specifications" in the Design Narrative Appendix
for project specific maintenance requirements.
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 stortnwater
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: Sam Young, President
Address: 1023 SW 25th Avenue, Miami, Florida 33135
Phone
S ignature
Date: ffiva
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
I, Yl 1s4�y) t Ia Notary Public for the State of County ofhereby certify that _ S fl fi � � CA personally appeared before me this v
day of u�;�� } UC3� and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and of ial eal,
SEAT.
CHRISTINE A.. BOYLE
NOTARY PUBLIC
DARE COUNTY, NC_
I
91.—
My commission expires
�1
Form SWU-107 Rev 3.99 Page 4 of 4

Permit No.
(to be provided by DWQ)
State of North Carolina RECEIVED
Department of Environment and Natural Resources
Division of Water Quality
MAR 1 3 2006
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
D WQ-'tijWARO
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stotmwater 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 : Sandy Point — Phase One
Contact Person: David A. Deel, P.E.
Phone Number: ( 252_) 261--3300
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench Roadway in Drainage Area D
(from plans) (from Form SWU-101)
II. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based upon an actual field investigation and soil borings)
Soil Type Amended to SP (fine to medium, sand)
Infiltration Rate 2 �or cf/hr/sf (circle appropriate units)
SHWT Elevation 6.0 fmsl (Seasonal High Water Table elevation)
Trench Design Parameters
Design Volume 20,720 c.f.
Design Storm I inch event (1.5 inch event for SA waters, I inch event for others)
Drawdown Time 1 days
Perforated Pipe Size n/a inch diameter
Perforated Pipe Length n/a Pt. (underdrain not required due to permeability of SP sand)
No. Observation Wells n/a (may be required on a case -by -case basis)
Stone Type (if used) Crushed angular stone (less than 5% passing No. 4 sieve)
Stone Void Ratio 40%
Trench Elevations (in feet mean sea level)
Bottom Elevation varies fmsl (stepped grade trench system)
Storage/Overflow Elevation varies fmsl (stepped grade trench system)
Form S WU- E 07 Rev 3.99 Page 1 of 4

Trench Dimensions
IIeight
Width
III. REQUIRED .ITEMS CHECKLIST
Length .2, 7 S ft.
Volume Provided 21, 494__ 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
LJJLJ 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.
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d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
- c
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).
Dg. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
h. System is not sited on or in fill material or DWQ approval has been obtained.
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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.
4Z 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.
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� rn 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 ).
�f f� m. Drainage area for the device is less than 5 acres.
S,"Ien, i, dr3lrrbr� Eel flrou kou�clra,��q� area
�Q) n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
Wo. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
�D 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.
r. Side to bottom area ratio is less than 4:1.
Form SWU-107 Rev 3.99 Page 2 of 4

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.
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IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
After every runoff producing rainfall event and at least monthly inspect the bypass/overflow stricture 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.
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 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 n/a* . , the accumulated sediment shall be removed
from the system. *see "maintenance Specifications" in the Design Narrative Appendix
for project specific maintenance requirements.
Form SWU-107 Rev 3.99 Page 3 of 4

I acknowledge and agree by my signature below that t am responsible for maintaining the stornwater
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: Sam Young, President
Address: 1023 SW 25th Avenue, Miami, Florida 33135
Phone:
Signature:
Date: S
Note: The legally responsible party should not Pe a horneowners association unless more than 50% of'the lots have been sold and a
resident of the subdivision has been named the president.
I, a 1 —E a Notary Public for the State of A'CI , County of
�]Q do hereby certify that m LI i'U Q personally appeared before me this
day of - L.�st -,and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
JOE SEAL
CHRiSTINE A. BOYLE
NOTARY PUBLIC
DARE COUNTY NC
My commission expires r 0,,Y7
Form SWU-l07 Rev 399 Page 4 of 4