SW7040318_CURRENT PERMIT_20040504

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
.02e��i�
YYYYMMDD

�1f A rF WOLRD Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
jco 7 Alan W. Klimek, P.E. Director
[ Coleen Sullins, Deputy Director
> "+ Division of Water Quality
o
DIVISION OF WATER QUALITY
May 4, 2004
Mr. Randy Saunders
Hughes Retreat, LLC
P.O. Box 1922
Kill Devil Hills, NC 27948
Subject: Permit No. SVY7040318
Hughes Retreat Condominium Development
High Density Stormwater Project
Dare County
Dear Mr. Saunders:
The Washington Regional Office received a completed Stormwater Application for the subject project on May 3, 2004,
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. SW7040318 dated May 4, 2004 to Hughes
Retreat, LLC for the construction and operation of two infiltration basins to serve Hughes Retreat Condominium Development
located Kill Devil Hills, NC.
This permit shall be effective from the date of issuance until May 4, 2014 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 fled 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 Roger Thorpe at
[phone], extension 214.
Sincerely,
im I /e-
Im Iligan
Water Quality Regional Supervisor
Washington Regional Office
cc: Bissell Professional Group
Kill Devil Hills Plan ningllnspections
Washington Regional Office
Central Files
Washington Regional Office 943 Washington Square Mall, Washington NC 27889 252.946.6481(telephone), 252.946.9215(fax)

r
t
State Stormwater Management Systems
Permit No. SW7040318
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
Hughes Retreat, LLC
Dare 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 Water Quality and considered a part of
this permit for two filtration basins to serve Hughes Retreat Condominium Development located in Kill Devil Hills, NC.
This permit shall be effective from the date of issuance until May 4, 2014 and shall be subject to the following specified
conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described -in the application and
other supporting data.
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.

DIVISION OF WATER QUALITY
PROJECT DATA
Project Name: Hughes Retreat Condominium Development
Permit Number: SW7040318
Location: Dare County
Applicant: Hughes Retreat, LLC
Mailing Address: P.O. Box 1922
Kill Devil Hills, NC 27948
Application Date: 3/24/2004
Receiving Stream: Atlantic Ocean
Classification of Water Body: SB
Total Site Area: 1.53 ac
Total Impervious: 0.59 ac
Infiltration Basin Depth: 1.5 feet
Required Storage Volume:
Basin # 1
628 cf
Basin # 2
1,599 cf
Provided Storage Volume:
Basin # 1
2,143 cf
Basin # 2
5,544 cf
Overflow Elevation:
8.0 feet

Z�
4. 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.
5. The following items will require a modification to the permit:
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.
6. 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
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.
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. 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 scheduled 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.
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.
5. 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.
6. 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 Mall, Washington, North Carolina, 27889, attention Division
of Water Quality.
7. 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 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.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement
action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6(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.
Permit issued this the 4 th day of May, 2004.
NORTH CAROLINA ENVIRONMENTAL. MANAGEMENT COMMISSION
-&2k- zt
Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7040318

Hughes Retreat Condominium Development
Stormwater Permit No. SW7040318
Designer's Certification
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

ECE91EL)
Hughes Retreat Condominium Development APR 13 2005
Stormwater Permit No. SW7040318
DWQ-WARO
Designer's Certification
1, /i91e14AE1- G J. Ra81.4/5o1-1 , 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, WW A195-15MeA7 Ct7.vDo�71•�/�ur�
P_ryE[opolF11r SW 7046319 _(Project)
for R-FTW-A7 4ZZ-' (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 NC- Pe /S 99 `f
Date f)P, 11- // 1 zoos

I
D � � yrtn 7
t,1W'�&1 pt._a�13L_.,s�t °'
Date Keecived Fee Paid Pernnit Number
State of North Carolina
MAR2 4 2004 Department of Environment and Natural Resources
Division of Water Quality
D IORM�W�ATER MANAGEMENT PERMIT APPLICATION FORM
iVf {ITV
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Hues Retreat, LLC
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Randy Saunders
3. Mailing Address for person listed in item 2 above:
P.O. Box 1922
City Kill Devil Hills
State NC
Zip: 27948
Telephone Number: ( 252) 449-8846
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans.
specifications, letters, operation and maintenance agreements, etc.):
Hughes Retreat
5. Location of Project (street address):
2010 A-L South Virginia Dare Trail
City Kill Devil Hills County: Dare
6. Directions to project (from nearest major intersection):
Approximately 1/10th of a mile north of the Nags Hcad/Kill Devil Mills Town Limits on N.C. 12
7. Latitude
36000, Longitude: 75039'
8. Contact person who can answer questions about the project:
Narr Mike Robinson
11. PERMIT INFORMATION:
I . Specify whether project is (check or
x New
Telephone Number:
Renewal
of project
[phone]
Modification
Form SWU-101 Version 3.99 Page 1 of 4

2. 1 Fthis application is being submitted as a result of a renewal or modification to an existing permit, list the
existing permit number and its issue date (if known)
3. Specify the type of project (check one):
Low Density x High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major Sedimentation/Erosion Control 404/401 Permit NPDE
Information on required state permit can be obtained by contacting the Customer Service Center at
1-877-623-6748
Ill. PROJECT INFORMATION
I. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater runoff fromall impervious surfaces will flow overland into a concrete curb & gutter network
that will convey flow, through velocity dissapatcrs, into the adjoining dry infiltration basins --
2. Stormwater runoff from this project drains to the Pasquotank River Basin
3. Total Project Area: 1.53 acres 4. Project Built Upon Area: 39.55%
5. How many drainage areas does the project have? 2
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.
9 A,: 61
' Bastn.lnformatron
11x
i,Draiira e Areal
;; ffi
Drarnagc A"reaw� a. ,.�
j _ E
:Draitiagc Area
Receiving Stream Name
Atlantic Ocean
Atlantic Ocean
Receiving Stream Class
ORW
ORW
Drainage Area
0.38 ac.
1.15 ac.
Existing Impervious* Area
-
-
Proposed Impervious* Area
0.17 ac.
0.42 ac.
°/, Impervious* Area (total)
44%
37%
;lmperVEouS*,�Surt►ceArca'•.';L�rain�ige;Elrc►1��,}';`,Urarna;e�lcea2a;Elr4���.a
s Dratnatgc��lrea`3
Future On -Site Buildings
-
0.1 1 ac.
On -Site Streets
-
-
On -Site Parking;
0,17 ac.
0.28 ac.
Other On -Site
-
0.03 ac.
Off -Site
-
-
% Impervious* Area (total)
44%
37%
*Impervious area is defined as the huilt upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version .3,99 Page 2 of 4

7. How was the off -site impervious area listed above derived'?
1V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
NIA
The following italicized deed restrictoins and protective covenants arc 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. The following covenants rrre intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenan
may not he changed or delted without consent of the State.
2. 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 he filled in, piper!, or entered except as necessray to provide driveway crossings.
4. Built -upon area in aveeess of the permitted amount requires a state stormwater management permit mortification
prior to construction.
5. All permitted runoff fronn outparcels or f tture development shall he directed into the permitted stormwater control
system. These connections to the stormwater control system shall he 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 Outict System Supplement
Form SWU-106
Off -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River Basin Supplement
Form SWU-109
Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of

V1. SUBMITTALREQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
Please indicate that you have provided the following required information by initaling in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
DMR
• One copy of the applicable Supplement Form(s) for each BMP
DMR
• Permit application processing fee of $420 (payable to NCDENR)
DMR
• Detailed narrative description of stormwater treatment/management
DMR
• Two copies of plans and specifications, including:
DMR
- Development/Pro ,ject Name
- Engineering and firm
- Legend
- North arrow
- Scale
- Revision number & (late
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor clevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VH. AGENT AUTHORIZATION
If you wish to desginate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm):
Mailing Address:
City
Phone:
Vlll APPLICANT'S CERTIFICATION
State:
Zip
Fax:
I, (I)rint or tvpe name gfperson listed in General Information, item 2) irAND'r M. SAWDER5
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requuirements of 15A
NCAC 2H .1000.
Signature:
Date: 3 -7.3 -04
Form SWU-101 Version 3.99 Page of

I
Permit No.
(to he pre) v! e w
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM LECfivRj'D
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
MAR 2 4 2004
DWQ Stormwater Management Plan Review: DWQ-WARO
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
I. PROJECT INFORMATION
Project Name : Hughes Retreat
Contact Person: Mr. Mike Robinson, P.E. Phone Number: 1(252) 261-3266
This worksheet applies to: Basin No.
(as identif ed on plans)
in Drainage Area 1
(from Form SWU-101)
11. DESIGN INFORMATION Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Newhan Fine sands
Infiltration Rate 20
SFIWT Elevation 4.50'
Basin Design Parameters
Design Storm 1.0
Design Volume 614
Drawdown Time 1.0
in/hr or of/hr/sf (circle appropriate units)
fmsl (Seasonal high Water Table elevation)
inch (1.5 inch event for SA waters, I inch event for others)
c. f.
hr
Basin Dimensions (irregular geometry see attached plan)
Basin Size 10 f. x I I I ft, = 1,110 sq. 1t. (boltom dimensions)
Basin Volume Provided 2,143 c.f.
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
6.5'
fins]
6.93'
fmsl
8.0'
fins]
Pugs 1 o1'3
Form SWU-l03 Rev.3.99

IIY. 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 Coe
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
DMtZ a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
Dr44 b. System is located at least 100 feet from water supply wells.
OMIZ c. Bottom of system is at least 2 feet above the seasonal high water table.
Drug d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
twr_ e. System is not sited on or in fill material or DWQ approval has been obtained.
1>mrt f.
DM¢ g.
System is located in a recorded drainage easement for the purposes of operation and
°1 maintenance and has recorded access easements to the nearest public right-of-way.
Drainage area for the device is less than 5 acres.
DMe h. Soils have a minimum hydraulic conductivity of 0.52 inches per hour and soils report is
attached.
DMQ
()MQ j.
tM2 k.
System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). Design volume and infiltration calculations attached.
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. Calculations attached.
All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
bmrz 1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed Swale or
sediment trap is provided.
bMrz m. Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches
or dense vegetative cover is provided.
N/A n. Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters). 3.5 ` cAPAC. TV Rrov&pGD
C) AVL 0.
W4L P.
AJ q.
bm tz r.
Flow distribution mechanism within the basin is provided.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
3.5" 64EArr CAPAc W PWv,b6t>
Runoff in excess of the design volume bypasses off-line systems (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. A soils report and all
pertinent draw -down calculations are attached.
DMtz s. 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.
Form SWU-103 Rev 3.99 Page 2 of 3

41' IN- 7

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
_. trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment 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 pretreatment unit. 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.
i
When the design depth reads 0.375 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater
Y control devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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: 124N_r,:,.r M. irk4r/Notetps
Address: P-o. 8e1A I922 Kilt. DMIL 141US 14 27W
Phone: ZS2 - 441 - 054 .---,,r Date: 3-23. 04
Signature:
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.
�Ar�ocrNA
i, MyNAg; �/'�• QcM1 +NSo�l , a Notary Public £or the State of 9 NGt+!!1� County of
RAQF do hereby certify that AM 04Pi Al. *:AV NfltRS personally appeared before me this 23td
day of .r''*UROrW" 200d , and acknowledge the due execution of the forgoing infiltration basin maintenance requirements.
.�'='�.
Wiiness�my�hand:atid:official seal,
SI?A� �; My commission expires %2-n�+• ��
Form SW U--103cwT.99 Page 3 of 3

C47,

Permit No.
!o he provi ec by
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality �RVED
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
MAR 2 4 2004
"Phis form may be photocopied for use as an original
WQ-UVARQ
DWO Stormwater ManaZement Plan Review:
A complete Stormwater management plan submittal includes a stormwater management pert -nit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name : Hughes Retreat
Contact Person: Mr. Mike Robinson, P.E. Phone Number: 1(252) 261-3266
This worksheet applies to: Basin No. 2
(as identified on plans)
in Drainage Area 2
(from Dorm SWU-101)
U. DESIGN INFORMATION Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (fmsl).
Soils Report Summary
Soil Type Newhan Fine sands
Infiltration Rate 20
SHWT Elevation 4.50'
in/hr or cf/hr/sf (circle appropriate units)
fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm 1.0 inch (1,5 inch event for SA waters, I inch event for others)
Design Volume 1,596 c.f.
Drawdown Time 1.0 hr
Basin Dimensions
Basin Size
12.5
ft. x
Basin Volume Provided
5,544
c.f.
Basin Elevations
Bottorn Elevation
6.5'
fmsl
Storage Elevation
6.93'
fmsl
Top Elevation
8.0'
fmsl
(irregular geometry sec attached plan)
231 ft. = 2,897 sq. ft. (bottom dimensions)
Page 1 of 3
Form SWIG-103 Rev.3.99

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, February 1999) and Administrative Coe
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
bM2 a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
bm ft b. System is located at least 100 feet from water supply wells.
r•5'
DMn c. Bottom of system is at least-2 feet above the seasonal high water table.
bMra d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
bmrz_ e. System is not sited on or in fill material or DWQ approval has been obtained.
lJMtz _ f. 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.
bm rL g. Drainage area for the device is less than 5 acres.
bmrz h. Soils have a minimum hydraulic conductivity of 0.52 inches p.ar hour and soils report is
attached.
�MR i. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters ). Design volume and infiltration calculations attached.
bmR 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. Calculations attached.
WArL k.
All side slopes stabilized with vegetated cover are no steeper than 3:1 (H:V).
bmiz 1.
A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
bAAQ. m.
Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches
or dense vegetative cover is provided.
N/A n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
length is 50 feet for SA waters, 30 feet for other waters). 3•s w. rsJerArr CAP.AcETY Puov„bvt>
b/1Aj'L o.
Flow distribution mechanism within the basin is provided.
t>M(L p.
A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
3.5 'w, svIrAr 04PAc iTY r'MO v I pt. rj
14L q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
bMfZ r.
System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days. A soils report and all
pertinent draw -down calculations are attached.
hM� s.
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.
Form SWU-103 Rev 3.99 Page 2 of 3

r
pia
_ . ' . ......, Fr • cT , , . _

IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment 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 storrnwater treatment device or stream, etc.).
A benchmark shall be established in the pretreatment unit. 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 design depth reads d 375 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
5. If the Division determines that the system is failing, the system will immediately be repaired 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.
I acknowledge and agree by my signature below that I am responsible for the performance of the five
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: tzwe a m. SAymvE ns
Address: ? 0• D ov 192 Z Kst t. Uri v+ 4 tyros
Phone
Signature:
Z52 - 441 - 25441
AIC Z7N6
Date: 5. %8.6
Note: The legally responsible party should not be a homeowners association unless more Ilion 50% of the lots have been sold and a
resident of the subdivision has been trained the president.
l /If IrMAEt W. Rbf3/t1sQ 1y a Notary Public for the State of Weipi1w <AP01WA County of
PAUF do hereby certify that JUMP-( Al. . A0}I VK_5 personally appeared before me this Z3�
clay of *7A1UI4, U and acknowledge the due execution of the forgoing infiltration basin maintenance requirements.
My commission expires 12.064
Page 3 of 3

57

Energy, Mtn era[ &
Land Resources
CNVIRONMF:NTAL OUAUTY
August 16, 2017
WA �u
ROY COOPER
Governor
MICHAEL S. REGAN
Sec mar y
TRACY DAVIS
Uireclor
Hughes Retreat Condominium Owners' Association, Inc.
6 Juniper Trail
Kitty Hawk, NC 27949
Subject: Stormwater Permit Renewal & Ownership Change
Stormwater Management Permit SW7040318
Hughes Retreat Condominiums
Dare County
Dear Sir:
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SW7040318 for two stormwater infiltration basins serving Hughes
Retreat Condominiums located at 2010 South Virginia Dare Trail in Kill Devil Hills, NC
expires on May 4, 2018. Renewal applications are due 180 days prior to expiration. The
permit was originally issued to Hughes Retreat, LLC. A search of the Dare County tax
records shows that the property covered under this permit is now owned by the Hughes
Retreat Condominium Owners' Association. North Carolina General Statutes and the
Coastal Stormwater rules require that this property be covered under a stormwater
permit.
Please submit a completed permit renewal application along with a $505.00 fee for
permit renewal and an ownership change application with another $505.00 application
fee. Permit application forms for renewal and ownership change can be found on our
website at: http:lldea.nc.gov/about/divisions/energy-mineral-land-resources/energy-
m ineral-land-perm its/stormwater-permits/forms.
North Carolina General Statutes and the Coastal Stormwater rules require that this
property be covered under a stormwater permit. 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.
Sincerely,
/c.
dLgrr. Thorpe
Environmental Engineer
--�Norhing Compares._.
Slate of North CAro ina I Enviropmr,nlal Qtlahly I (:InerO TWIccaland Land Resnurres
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