SW7071212_CURRENT PERMIT_20080131

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

wsv� -I
r�
January
Mr. Jim Winebarger, Director of Maintenance & Construction
Dare County Board of Education
508 Budleigh Street
Manteo, NC 27959
Dear Mr. Winebarger:
W«.R o
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
Subject: Permit No. SW7071212
Dare Education Foundation Teacher Housing
High Density Stormwater Project
Dare County
The Washington Regional Office received a completed Stormwater Application for the subject project on
December 14, 2007. 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.
SW7071212 dated January 31, 2008 to the Dare County Board of Education for the construction and operation of two
infiltration basin systems to serve the proposed Dare Education Foundation Teacher Housing located on 8" Avenue
in Kill Devil Hills, NC, t I f I )
This permit shall be effective from the date of issuance until January 31, 2018 and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater
management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This
request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes,
and filed with the Office of Administrative Hearings, 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 or me at [phone].
Sincerely,
410—dkROegllonaqlupervisor
Surface Water Protection Section
Washington Regional Office
cc: Albemarle & Associates, LTD
T wn of Kill Devil Hills Inspections
ashington Regional Office
Central Files
North Carolina Division of Water Quality Internet: o•ww.nnratcnnialitv.ore
943 Washington Square Mail Phone [phone]
Washington, NC 27889 Fax [phone]
NorthCarolina
Naturally
An Equal Opportunity/Affirma&ve Action Employer - 50 % Recycled/10% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7071212
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
Dare County Board of Education
Dare Education Foundation Teacher Housing
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 basin systems to serve the proposed Dare Education
Foundation Teacher Housing located on 81b Avenue in Kill Devil Hills, NC.
This permit shall be effective from the date of issuance until January 3102018 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. A maximum of 57,802 square feet of built upon area is allowed on this 5.34 site.
4. All stormwater collection and treatment systems must be located in either dedicated common areas or
recorded easements. The final plats for the project will be recorded showing all such required easements, in
accordance with approved plans.
5. 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:
Dare Education Foundation Teacher Housing
Permit Number:
SW7071212
Location:
Dare County
Applicant:
Dare County Board of Education
Mailing Address:
508 Budleigh Street
Manteo, NC 27959
Application Date:
12/14/2007
Receiving Stream:
UT to Buzzard Bay
Classification of Water Body:
Sc
Total Site Area:
5.34 ac
Basin:
# 1 (South)
# 2 North
Drainage Area to Basin:
113,819 sf
118573 sf
Total Impervious:
28,888 sf
28,914 sf
Infiltration Basin Storage Depth:
1.5 feet
1.7 ft
Required Storage Volume:
2,643 cf
2,664 cf
Provided Storage Volume:
9,327 cf
7,079 cf

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.
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.
& 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.
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.
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. 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.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the
project.
Ill. GENERAL CONDITIONS
1. 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.
6. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for
an extension along with appropriate application fee.
Permit issued this the 31 st day of January, 2008.
CAROLINA ENVIRONMENTAL MANAGEMENT
L.
rgr Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7071212

Dare County Board of Education — Dare Education Foundation Teacher Housing
Stormwater Permit No. SW7071212
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 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
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -upon area.
_3. All the built -upon area associated with the project is graded such that the runoff drains to the
system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. All slopes are grassed with permanent vegetation.
_8. Vegetated slopes are no steeper than 3:1.
_9. The permitted amounts of surface area and/or volume have been provided.
10. All required design depths are provided.
_11. All required parts of the system are provided including any vegetated filter.
12. The required system dimensions are provided per the approved plans.

Dare County Board of Education - Dare Education Foundation Teacher Housing
Stomiwater Permit No. SW7071212
Designer's Certification hliG 0 12008
I, MfcNA(--L -$ Moe, y/ as a duly
registered Professional Engineer in the State of North Carolina, having been authorized to observe
eriodical eeklylfull time)
the construction of the project, 0 envcQTa Fo�tioA7k�,-�
Tco c,�2 Nws �l (Project)
for 0AU2 CcD„sc-y &aNZn ar �icA-AaJ(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.
Signs
Regi:
Date
Certification Requirements:
✓ 1. The drainage area to the system contains approximately the permitted acreage.
✓2. The drainage area to the system contains no more than the permitted amount of built -upon area.
✓3. All the built -upon area associated with the project is graded such that the runoff drains to the
% system.
4. All roof drains are located such that the runoff is directed into the system.
'1_1�5. The outlet/bypass structure elevations are per the approved plan. Nlt--
✓ 6. The outlet structure is located per the approved plans.
7. All slopes are grassed with permanent vegetation. TAK­-b
✓ 8.! Vegetated slopes are no steeper than 3:1.
/9. The permitted amounts of surface area and/or volume have been provided.
10, All required design depths are provided.
11. All required parts of the system are provided including any vegetated filter. + It,_
✓12. The required system dimensions are provided per the approved plans.

t]-l:[s:C%'- •=''--'•�'-� DWQ USE ONLY
Date Received
Fee Paid
Permit Number
J
C 14
2007
1 if vog-
5Wq&1Ja_JQ_
Dl QAIVRF® State of North Carolina SW�K / 7�°7
°� Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
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):
dare County Board of Education
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Tim Winebarger, Director of Maintenance and Construction
3. Mailing Address for person listed in item 2 above:
Dare County Board of Education, 508 Budleigh Street
City:Manteo State:NC Zip:27959
Phone: (252 ) 480 - 8888 Fax: (252 ) 480 - 8885
Email:[e-mail]
i�
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,,---'
specifications, letters, operation and maintenance agreements, etc.):
Dare Education Foundation Teacher Housing
5. Location of Project (street address):
At the end of North Seventh Avenue (address to be assigned when subdivision is approved)
City:Kill Devil Hills County:Dare
6. Directions to project (from nearest major intersection):
Approximately 0.6miles south of SR 1217 (Colington Road) on US 158, turn west on Airstrip Road. Go
approximately 0.5 miles and turn right on 8th Avenue. Property is approx. 0.2 mile on left.
7. Latitude:36 0.2' N Longitude:75 39.8' W of project
8. Contact person who can answer questions about the project.
Name:Michael Morway, PE Telephone Number: (252 1 441-2113
Email: mikem®albal.us
11. PERMIT INFORMATION:
1. Specify whether project is (check one):
R
❑Renewal ❑Modification
Form SWU-101 Version 8.07 Page 1 of

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number
and its issue date (if
3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks):
❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
The property has been divided into two areas with separate stormwater management systems. Stormwater will
collect within the center island of the parking lot and be directed into one of two infiltration basins via culverts.
2. Stormwater runoff from this project drains to the Pasquotank River basin.
3. Total Site Area: 5.34 acres 4. Total Wetlands Area: 0 acres
5. 100' Wide Strip of Wetland Area: n/a acres (not applicable if no wetlands exist on site)
6. Total Project Area**:5.34 acres 7. Project Built Upon Area:25.1 %
8. How many drainage areas does the project have?2
9. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
Buzzard Bay
Buzzard Bay
Stream Class & Index No.
SC
SC
Drainage Area (so
113,819
118,573
Existing Impervious* Area (so
0 SF
0 SF
Proposed Impervious*Area (sf)
1 28,888 SF
28,914 SF
% Impervious* Area (total)
1 25.4%
24.4%
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings (so
6,163 SF
8,073 SF
On -site Streets (so
0 SF
0 SF
On -site Parking (so
19,255 SF
18,156 SF
On -site Sidewalks (so
3,136 SF
2,258 SF
Other on -site (so
334 SF
427 SF
Off -site (so
0 SF
0 SF
Total (so:
28,888 SF
28,914 SF
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
**Total project area shall be calculated based on the current policy regarding inclusion of wetlands in the built upon area
percentage calculation.
Form SWU-101 Version 8.07 Page 2 of

10. How was the off -site impervious area listed above derived?From calculations based upon what is proyosed.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following deed restrictions and protective covenants are required to be recorded for all subdivisions,
outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot
number, size and the allowable built -upon area for each lot must be provided as an attachment.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded deed restrictions and protective covenants for this
project shall include all the applicable items required in the above form, that the covenants will be binding
on all parties and persons claiming under them, that they will run with the land, that the required covenants
cannot be changed or deleted without concurrence from the 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 SW401-Low Density
Low Density Supplement
Form SW401-Curb Outlet System
Curb Outlet System Supplement
Form SW401-Off-Site System
Off -Site System Supplement
Form SW401-Wet Detention Basin
Wet Detention Basin Supplement
Form SW401-Infiltration Basin
Infiltration Basin Supplement
Form SW401-Infiltration Trench
Underground Infiltration Trench Supplement
Form SW401-Bioretention Cell
Bioretention Cell Supplement
Form SW401-Level Spreader
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Form SW401-Wetland
Constructed Wetland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SWU-101 Version 8.07/ Page 3 of

Vl. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at htti)://h2o.enr.state.nc.us/su/msi maps.htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
• Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soil report
• Three copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm):Michael Morway, PE - Albemarle & Associates. Ltd.
Mailing Address:PO Box 3989
City:Kill Devil Hills State:NC Zip:27948
Phone: (252 ) 441-2113 Fax: (252 ) 441-0965
Email:[e-mail]
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) tim Winebarger, Dare County Board of Education ,
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. _
Date: IZ/ It 107
Form SWU-101 Version 8.07 Page 4 of

Permit No.
(to be provided by DWQ)
O�p4 WATT,
�A
�/� STORMWATER MANAGEMENT PERMIT APPLICATION FORM oW�
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
Drainage area
Impervious area
Percent impervious
Design rainfall depth
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
1-yr,24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr runoff volume
Post -development 1-yr, 24-hr runoff volume
Pre/Post 1-yr, 24-hr peak flow control
Storage Volume: Non -SR Waters
Minimum design volume required
Design volume provided
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom SA
Teacher
5-Dec-05
1 (South Basin)
113,819.00 ft'
28,888.00 ff
025
t.0 In
N
(Y or N)
n/a
in
We
inmr
n/a
ft3/sec
n/a
ft3/sec
#VALUE!
ft3/sec
2,448 ft3
4,948 ft3
n/a in
n/a ft3
n/a ft3
#VALUE! ft3
n/a ft3
DuE
OK for non -SR waters
15.00
in/hr
8.00
fmsl
0.1
days OK
4
:1 OK
12.00
fmsl OK
12.94
fmsl
13.50
fmsl
varies It
varies If
4,035 ftz
DEC 14 2007
Fonn SW401-Infiftration Basin-Rev.t Parts I. a II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
Additional Information
Total runoff volume captured by basin
0.67
ac-in
OK
Length of vegetative filter for overflow
NIA
it
OK
Distance to structure
60
it
OK
Distance from surface waters
>30
fl
OK
Distance from water supply well(s)
>100
it
OK
Separation from impervious soil layer
> 4.0
it
OK
Naturally occuring soil above shwt
> 4.0
it
OK
Bottom covered with 4-in of clean sand?
Y
(Y or N)
OK
Recorded drainage easement provided?
Y
(Y or N)
OK
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Bypass provided for larger storms?
NIA
(Y or N)
OK
Pretreatment device provided
Y
Middle island of packing lot
Form SW401-Infieration Basin-Rev.1 Parts I. & II. Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
III: REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
A5n C f - "7 1. Plans (1' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
r IP - High flow bypass system, ���'"' I t16�E 1 S
- Maintenance access, Pj°"t v�rSS= u sTt�7
t-,lA - Recorded drainage easement and public right of way (ROW), — I -E;�D -Zt-'t tS
�, I P - Overflow device, and 5 pu
N iD - Boundaries of drainage easement. 1
"�.Fir,>.r'
CI 1> 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing:
pt� - Bypass structure, u aC,0 /"t ES[-rC``�
- Maintenance access, T,> k C c_
Basin bottom dimensions, Q J v Qy�fl
Basin cross-section with benchmark for sediment cieanout,
Flow distribution detail for inflow,
Vegetated filter, and
Pretreatment device.
k6l"i\ Cl 2> 3. Section view of the infiltration basin (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
m3f~ C I -1-) 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
JWS e\ A7bk-t'O 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
MSI \ CL-'>_ 6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
4' `) t�\ CI •
7. A construction sequence that shows how the infitiration basin will be protected from sediment until the
entire drainage area is stabilized.
_i
8. The supporting calculations.
MSN� t�
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement
P/N
10. A copy of the deed restriction.
Form SW401-Infiltration Basin-Rev.1 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1

STORMWATER CALCULATIONS
for
DARE EDUCATION FOUNDATION
AFFORDABLE TEACHER HOUSING PROJECT
Stoernwater Drainage Area 1 (South Basin)
Drainage Area 113,819sf = 2.61 w
SURFACE AREA INFORMATION
Surface Area
C Value
Area
C-A
Buildings
1.00
6,163
6,163
Parking/driveways
0.95
19,255
18,292
Sidewalk/conc
0.95
3,136
2,979
other
1.00
334
334
Cnassednandseape area (- sec note)
0.00
76,530
0
Total Drainage Arc.
105,418
27,768
Stormwater Management Amas
C Value
Area
C•A
Infiltration Basin Surface Areas
0.12
8,401
1,848
Total Stormwoter Management Area
8,401
1,848
Total Contributing Area
113,819
29.617
Composite C 0.26
Contributing Area 2.61 ac
Infiltration Basin Characteristics
Basin Storage Side Sloe Depth (n) V.lumo (cQ
Infiltration Basin 1 4:1 1.5 9.327
Total 9,327
Pipe/Swale Storage Sim (n) Length (n) Volume (c
Total 0
Infiltration
'Infiltration Basin A
Total
8,401
15.00
Stormwmer Management 1"
1.5"
4.3"
5.0"
Intensity(in./hr)
0.5
0.75
2.15
2.50
Runof(efs)
0.34
0.51
1.46
1.70
2-1-lour Runof Volume (cf)
2,448
3,671
10,525
12,238
Pond Storage Volume (cl)
9,327
9,327
9,327
9,327
Pond/Swale Infiltration Volume (cf)
21,003
21,003
21,003
21,003
Total Slonnwate, Managed (cf)
30,330
30,330
30,330
3U30
Percent Retained
1239 %
826 %
288 %
248
" - Stonnwaler falling upon the drainlield and perimeter areas with greater than two feel separation
excluded from calculations due to the porosity of existing conditions.
• - based no two how infiltrelion rate.
DEC 14 2007
uDVVQ-1jy.A ;�
,\GS572
Prepared by Albemarie and Associates, Ltd.
12/13l2007

®��
Permit No.
(to be provided by DWQ)
O2OF WATF' O
�! STORMWATER MANAGEMENT PERMIT APPLICATION FORM o�C
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Pad III) must be printed, filled out and submitted along with all of the required information.
Contact Person
Phone Number
Date
Drainage Area Number
5-Dec-07
2 (North Basin)
II. DESIGN INFORMATION
Site Characteristics
Drainage area
Impervious area
118,573.00
28,914.00
ft2
ftZ
6-1ltc�^Ci�� i•��`,,y+�
Percent impervious
0.24
Design rainfall depth
1.0
in
DEC 14 2007
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
1-yr, 24-hr runoff depth
N
n/a
(Y or N)
in
(�
D v {/� bf Q-1; 1AR
1-yr, 24-hr intensity
n/a
inmr
Pre -development 1-yr, 24-hr runoff volume
nla
ft'/sec
Post -development 1-yr, 24-hr runoff volume
n/a
ft'Isec
PrelPost 1-yr, 24-hr peak flow control
#VALUE!
ft3/sec
Storage Volume: Non -SR Waters
Minimum design volume required
2,523
to
Design volume provided
4,832
to OK for non -SR waters
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Soils Report Summary
Soil type
Infiltration rate
SHWT elevation
Basin Design Parameters
Drawdown time
Basin side slopes
Basin bottom elevation
Storage elevation
Top elevation
Basin Bottom Dimensions
Basin length
Basin width
Bottom SA
We in
We ft'
n/a w
#VALUE! ft3
nla to
DuE
15.00 inmr
10.30 fmsl
0.1 days
4 :1
12.50 fmsl
13.78 fmsl
14.20 fmsl
varies If
varies It
2,255 f?
OK
OK
OK
Form SW401-Infiltration Basin-Rev.1 Pans 1. a n. Design Summary, Page 7 of 2

Permit No.
(fo be pmviderl by DWQ)
Additional Information
Total runoff volume captured by basin
0.67
ac-in
OK
Length of vegetative filter for overflow
NIA
it
OK
Distance to structure
60
it
OK
Distance from surface waters
>30
ff
OK
Distance from water supplywell(s)
>100
it
OK
Separation from impervious soil layer
> 6.3
It
OK
Naturally oocuring soil above shwt
> 6.3
it
OK
Bottom covered with 4-in of clean sand?
Y
(Y or N)
OK
Recorded drainage easement provided?
Y
(Y or N)
OK
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Bypass provided for larger storms?
NIA
(Y or N)
OK
Pretreatment device provided
Y
Middle island of parking lot
Form SW401-Infittretion Basin-Rev.1 Parts I. a It. Design Summary, Page 2 of 2

Permit
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
C-I • 1. Plans (1' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
W N6 1 S
I P. -High flow bypass system, No G I
- Maintenance access,
top, - Recorded drainage easement and public right of way (ROW), — 1 i Tr-N k5 SN k e 1 S�
N I A - Overflow device, and Tr+EYLc I s 1�0
N IN - Boundaries of drainage easement. 1
��✓� C l 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing: u r�l ESQ
ptp - Bypass structure,
Maintenance access,
Basin bottom dimensions, Q Jt PJ
Basin cross-section with benchmark for sediment cleanout,
Flow distribution detail for inflow,
Vegetated filter, and
Pretreatment device.
ON5 VA CI • 3. Section view of the infiltration basin (1" = 20' or larger) showing:
- Pretreatment and treatment areas, and
- Inlet and outlet structures.
�3l^ CI 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided.
M-S f \ 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
WStv\ C I 6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
tMi� CI - 7. A construction sequence that shows how the infitration basin will be protected from sediment until the
entire drainage area is stabilized.
PD
8. The supporting calculations.
ASP"\ M W_— 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
IJ IN 10. A copy of the deed restriction.
Form SW401-Infiltration Basin-Rev.1 Page 1 of 1 Part III. Required Items Checklist, Page 1 of 1

STORMWATER CALCULATIONS
for
DARE EDUCATION FOUNDATION
AFFORDABLE TEACHER HOUSING PROJECT
Stormwater Drainage Area 2 (North Basin)
Drainage Area 118.573 sr = 2.72 ac
SURFACE AREA INFORMATION
Surface Area
CValue
Area
C'A
Buildings
1.00
8,073
$073
Asphalt
0.95
18,156
17,248
Sidewalk/cone
0.95
2,258
2,145
Gazebo
1.00
427
427
Cnassedllandscap: area (• see note)
0.00
83,583
0
Total Drainage Area
112,497
27,893
Stormwater Management Areas
C Value
Area
C'A
Infiltration Basin Surface Areas
0.22
6,076
1,337
Total Stormwater Management Area
6,076
1,337
Total Contributing Area
118,573
29,230
Composite C 0.25
Contributing Area 2.72 ae
Infiltration Basin Characteristics
Basin Storage Side Slo c Depth (III Volume (cQ
Infiltration Basin 1 4:1 1.7 1 7,079
Total 1 7,079
Pipe/Swale Storage Size (in) Length (0) Volume (cQ
'Total 0
Total
Stornow:der Management 1"
1.5"
4.3"
5.0"
Intensity (in.4a)
0.5
0.75
2.15
2.50
Runoff (cfs)
0.34
0.50
1.44
1.68
2-1 lour Runoff Volumc (cf)
2,416
3,624
10 388
12,079
Pond Storage Volume (ef)
7,079
7,079
7,079
7,079
Pond/Swale Infiltration Volmne(eQ
15,190
15,190
15,190
15,190
Total Stonnwale� Managed (ef)
22.269
22.269
22,269
22,269
Percent Retained
922%
615 %
214 %
184 %
• - Stormwater falling upon the drainfield and perimeter areas with greater than two feet separation
excluded loom calculati.m due to the porosity of existing conditions.
" - based on Iwo hour infiltration mlc.
DEC 14 2007
D;A1,-VVA4I0
Prepared by Albemarle and Associates, Ltd. 12/132007

DEC 14 2007
Infiltration Basin Inspection and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— The drainage area will be carefully managed to reduce the sediment load to the
infiltration basin.
— Immediately after the infiltration basin is established, the vegetation will be
watered twice weekly if needed until the plants become established (commonly
six weeks).
— No portion of the infiltration basin will be fertilized after the initial fertilization
that is required to establish the vegetation.
— The vegetation in and around the basin will be maintained at a height of
approximately six inches.
After the infiltration basin is established, it will be inspected once a quarter and within
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of inspection and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
infiltration basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe. Dispose of the
swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the Swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The forebay
Sediment has accumulated
Search for the source of the
and reduced the depth to 75%
sediment and remedy the problem if
of the original design depth.
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticides are used, wipe
them on the plants rather than
spraying.
The main treatment area
A visible layer of sediment
Search for the source of the
has accumulated.
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP. Replace any media that
was removed in the process.
Revegetate disturbed areas
immediately.
Water is standing more than
Replace the top few inches of filter
5 days after a storm event.
media and see if this corrects the
standing water problem. If so,
revegetate immediately. If not,
consult an appropriate professional
for a more extensive repair.
Weeds and noxious plants are
Remove the plants by hand or by
growing in the main
wiping them with pesticide (do not
treatment area.
spray).
The embankment
Shrubs or trees have started
Remove shrubs or trees
to grow on the embankment.
immediately.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair.
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.

I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Print name: Jim Winebarger
Title: Construction and Maintenance Director
Address:PO Box 1508, Nags Head, NC 27959
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, .0 'I ,--cL.c-(/l , a Notary Public for the State of
A)k(r � tJ,Je4Ft , County of -Z:>4p? , do hereby certify that
personally appeared before me this 3
day of eccc.10<� 7 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
S�� � � •� �� �� %
k, f
�i
' U ;4
SEAL
My commission expires 6Cf 2 00�j3