SW7030814_CURRENT PERMIT_20061102

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

I • wzx:R b
W ArF9Q Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Q Alan W. Klimek, P.E. Director
Division of Water Quality
DIVISION OF WATER QUALITY
November 2, 2006
Dare County Board of Education
Attn: Mr. Jim Winebarger
PO Box 1508
Nags Head, NC 27959
Subject.
Dear Mr. Winebarger:
MODIFICATION FOR
Stormwater Permit No. SW7030814
Manteo Middle School
High Density Stormwater Project
Dare County
The Washington Regional Office received your request for a
permit modification for the subject project on October 3, 2006.
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. SW7030814 dated November 2, 2006 to Dare
County Board of Education.
This modification replaces the previous permit and shall be
effective from the date of issuance. until November 2, 2016 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 an this
permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days
following receipt of this permit. This request must be in the
form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of
Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-
7447. Unless such demands are made this permit shall be final and
binding.
North Carolina Division of Water Quality Internet: h2o.enr.state.mus
943 Washington Square Mall Phone: [phone]
Washington, NC 27889 FAX [phone]
An Equal OpportunitylAffirmative Action Employer— 50% Recycled/1 0% Post Consumer Paper
Nne
orthCarolina
Naturally

14
Dare County Board of Education
November 2, 2006
Page Two
If you have any questions, or need additional information
concerning this matter, please contact Mr. Bill Moore at (252)948-
3919.
Ancerely,
Al Hodge, Regional Supervisor
Surface Water Protection Section
Washington Regional Office
cc: Bissell Professional Group
Dare County Planning/Inspections
AARO Stormwater Files
Central Files

State Stormwater Management Systems
Permit No. SW7030814
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 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
vegetated swales and buffers, (1) infiltration basin, and (3)
bioretention basins to serve Manteo Middle School located off US64
at Manteo, NC.
This modification replaces the previous permit, and shall be
effective from the date of issuance until June 16,.2016, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and
volume of stormwater described in the application and other
supporting data.
2. This stormwater system has been approved for the management
of stormwater runoff as described on page 4 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.
3

DIVISION OF WATER QUALITY
PROJECT DATA
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Water Body Receiving Stormwater
Runoff:
Classification of Water Body:
Total Site Area:
Total Impervious
Surfaces Allowed:
Manted Middle School
sW7030814
Dare County
Dare County Board of Education
PO Box 640
Manteo, NC 27954
10/03/2006; original
11/01/2006; complete
OJT -Roanoke Sound
SA
34.06 acres
5.93 acres
Basin Required Provided Provided Storage
Number Storage Storage Area Elevations_____
Inf #1 3422 cf
Bio-Ret ## 5961 cf
1 and IA
Bio-Ret #2 4324 cf
33729 cf 11616 sf 12.0 ft
38846 cf 19659 sf 13.0 ft
23234 cf 12818 sf 12.0 ft
Bio-Ret #3 2888 cf 23376 cf 6599 sf 12.5 ft
4

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.
G. 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. 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:
5

a. Semi-annual 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. GENERA. 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.
6

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. At least 6 months prior to the expiration date, the permittee
must request that this permit be renewed.
Permit issued this the 2 nd day of November, 2006.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P: Director'
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW7030814
7

MODIFICATION FOR
Stormwater Permit SW703OB14
(1) Dry Infiltration Basin, (3) Bio-Retention Basins and
Vegetated Swales
Manteo Middle School
Manteo, NC
Designer's Certification
I,
Jr 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
9

I \ tm n I Y,y>1 , I I
OFFICE USE ONLY
>1`9t tCAr f '.ate ,Aceiye. ea al Permit NumberKim
OCT ^ 3 2006 State of North Carolina 5K1ACSC !Q/1tla6
Department of Environment and Natural Resources
Division of Water Quality
DWQ-►nr ,
STO ATER MANAGEMENT PERMIT APPLICATION FORM
Phis form may he photocopied for use as an original
1. 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 tide (person legally responsible for facility and compliance):
Jim Winebarger, Director of Maintenance & Construction
3. Mailing Address for person listed in item 2 above:
P.O. Box 1508
City Nags Head State NC Zip: 27959
Telephone Number: 252 473-3635
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Manteo Middle School '
5. Location of Project (street address):
34 ac. tract of land across from Mother Vineyard Rd. (S.R. 1120) on US Hwy. 64/264
City Manteo County: Dare
6. Directions to project (from nearest major intersection):
Adjacent to the intersection of Mother Vineyard Rd. and U.S. Hwy. 64/264
7. Latil 350 54' 00" Longitude: 750 40' 00" of project
3. Contact person who can answer questions about the project:
Name: Mr. David Ryan, P.E. Telephone Number:
IL PERMIT INE'OWMATION:
1. Specify whether project is (check or
New Renewal
[phone]
X Modification
Fonn SWU-101 Version 3.99 Page l of

2. If this 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 X Sedimentation/Erosion Control 404/401 Permit
Information on required state permit can be obtained by contacting the Customer Service Center at
1-877-623-6748
III. PROJECT INFORMATION
NPDES Stormwater
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 from all impervious surfaces will flow overland into a combination of vegetative filters,
vegetative buffers, and infiltration basins
2. Stormwater runoff from this project drains to the Pas uotank River Basin
3. Total Project Area: 34.08 acres 4. Project Built Upon Area: 17.40%
5. How many drainage areas does the project have? 8
6. Complete the following information for each drainage area. If there are more than two drainage areas in the project,
attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area 2
Drainage Area 3 :. .
Receiving Stream Name
Roanoke Sound
Roanoke Sound
Roanoke Sound
Receiving Stream Class
SC
SC
Sc
Drainage Area
3.3
0.48
3.37 ac.
Existing Impervious* Area
0 ac.
0 ac.
0 ac.
Proposed Impervious* Area
0 ac.
0 ac.
1.64 ac.
Impervious* Area (total)
0.00%
0.00%
48.59%
Impervious* Surface Area
Drainage Area-1
Drainage Area 2
Drainage Area 3.
On -Site Buildings
0
0 ac.
18,897 s.f. or 0.43 ac.
On -Site Streets
0
0 ac.
2,960 s.f. or 0.07 ac.
On -Site Parking
0
0 ac.
36,582 s.f. or 0.84 ac.
Other On -Site
0
0 ac.
12,899 s.f. or 0.30 ac.
Off -Site
0
0
0
% Impervious* Area (total)
0 •
0 ac.
71,328 sf or 1.64 ac.
*Impervious area is defined as the built upon area including, but not limited to, buildings, roacls, parking areas,
sidewalks, gravel areas, etc.
Forrn SWU-101 Version 3.99 Page 2 of 4

3. Specify the type of project (check one):
Low Density 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
111. PROJECT INFORMATION
l . 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 from all impervious surfaces will flow overland into a combination of vegetative filters,
ve�etative buffers, and infiltration basins
2. Stormwater runoff from this project drains to the
Pasquotank
River Basin
3. 'Total Project Area: 34.08 acres
4. Project Built Upon Area:
17.40%
5. Flow many drainage areas does the project have'? 8
6. Complete the following information for each drainage area. If there are more than two drainage areas in the project,
attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 4 ..
Drainage:Area5
Drainage AreW ,
Receiving Strearn Name
Roanoke Sound
Roanoke Sound
Roanoke Sound
Receiving Stream Class
SC
SC
SC
Drainage Area
1.91
3.01 ac.
7.01 ac.
Existing Impervious* Area
0 ac.
0 ac.
0 ac.
Proposed Impervious* Area
0.78 ac.
1.09 ac.
0.23 ac.
Impervious* Area (total)
40.67%
26.04%
3.28%
Impervious* Surface Area
Drainage Area 4
Drainage Area 5
.Drainage Area 6
On -Site Buildings
3,522 s.f. or 0.08 ac.
37,524 s.f. or 0.86 ac.
0
On -Site Streets
18,424 s.f. or 0.42 ac.
0
5,659 s.f. or 0.13 ac.
On -Site Parking
0
0
0
Other On -Site
11,930 s.f. or 0.27 ac.
9,997 s.f: or 0.23 ac.
4,511 s.f. or 0.10 ac.
Off -Site
0
0
0
% Impervious* Area (total)
33,876 s.f. or 0.78 ac.
47,521 s.f. or 1.09 ac.
10,170 s.f. or 0.23 ac.
*Impervious area is defr77ed as the built upon area including, bul not limited to, buildings, roads, parking areas,
sideivalks, gravel cn•eas, etc.
7. How was the off -site impervious area listed above derived'? N/A

3. Specify the type of project (check one):
Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
LAMA 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
III. 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 from all impervious surfaces will flow overland into a combination of vegetative filters,
vegetative buffers, and infiltration basins
2. Stormwater runoff from this project drains to the _ Pasquotank River Basin
3. Total Project Area: 34.08 acres 4. Project Built Upon Area: 17,40%
5. How many drainage areas does the project have? 8
6. Complete the following information for each drainage area. if there are more than two drainage areas in the project,
attach an additional sheet with the information for each area provided in the same format as below.
Basin Information
Drainage Area 7
Drainage Area 8
Receiving Stream Name
Roanoke Sound
Roanoke Sound
Receiving Stream Class
SC
SC
Drainage Area
11.5 ac.
2.34 ac.
Existing Impervious* Area
0 ac.
0 ac.
Proposed Impervious* Area
1.27 ac.
0.92 ac.
Impervious* Area (total)
11,04%
39,24%
Impervious* Surface Area
` Drainage Area 4 '"°
Drainage•Area 5
" "f
On -Site Buildings
8,918 s.f. or 0.20 ac.
0
On -Site Streets
28,425 s.f. or 0.65 ac.
36,050 s.f. or 0.83 ac.
On -Site Parking
0
0
Other On -Site
18,052 s.f. or 0.41 ac.
3,920 s.f. or 0.09 ac.
Off -Site
0
0
% Impervious* Area (total)
55,395 s.f. or 1.27 ac.
39,970 s.f. or 0.92 ae.
*Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
7. How was the off -site impervious area listed above derived'? N/A

7. How was the off -site impervious area listed above derived? NIA
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictoins and protective covenants are required to be recorded for all subdivisions,
outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot
number, size and the allowable built -upon area for each lot must be provided as an attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenants
may not be 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 be filled in, piped, or altered except as necessray to provide driveway crossings.
4. Built -upon area in excess of the permitted amount requires a state stormtivater management permit modification
prior to construction.
S. .411 permitted runoff from outparcels or future development shall be directed into the permitted stormtivater control
system. These connections to the stormwater control ,System shall be performed in a manner that maintains the
integrity and performance of the system as permitted.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and persons
claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FOPUMS
The applicable state stormwater management pennit supplement form(s) listed below must be submitted
for each BMP specified for this project, Contact the Stonnwater 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 SVItU-105 Curb Outlet 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
Fonn SWU-I01 Version 3.99 Page 3 of

Sep 28 06 10:24a Jan DeBlieu [phone]
W-z/-VH:1/:VO ;ts r L+ oe ... ,rOV
f p. 9
VI. SUBMTTAL REQUnUMM
Only complete appllcation packages will be accepted and reviewed by the Division of Water Quality (UWQ)L
A complete psekage includes all of the items Usted below. The complete application package should be
submitted to the appropriate DWQ Regional Office,
F lease 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 Stormwaur Management Permit Application Form
DMR
• One copy of the applicable Supplement Fonn(s) for each BMP
DMR
- Permit application processing fee of $420 (payable to NCDEM)
DMR
Detailed narrative description of stwmwater ireatmentlaimagement
DMR
Two copies of plans and specifications, including:
NIA
- DevelopmentlProject Name
- Engineering and firm
. legend
North
. arrow
- Scale
- Revision number tit date
- Mean high Water line
. Dimensioned property/project boundary
- Location crap with tamed streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater coauol measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calwlations
- Drainage areas delineated
- Vegetated buffers (whore reW=d)
V11. AGENT ALMMORIZATION
If you wish to desginate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
3
Designated agent (individual orffir ): 155miL + eO
Mailing Address; -'0, l:'r]ex Ky,t�4_>
City M;l- State: NC, Zap
Phone: 10 i - 2&1 .52(76 Fax:
Vli1 APPLICANT'SCKRTWICATTON
1, (print or type nameofprrson listed in Genem!laformtrtion, item 1) Jim WinebarSer, Director of Maintenance & Constuctron
certify that the information included on this permit application form is, to the beat of my knowledge, correct and
that the project will be constructed in confottnanra with the approved plans, that the required dcod ruatric(ions
and protective covenants will be recorded and that the proposed project complies with the requuirements of 15A
NCAC 2H .100
Signature: rw Date:
FormSWU-101 Vention3.99 Page4of4

Drainage Basin #4`>,S-M v wATr1L %z,Mi 2VPegzGACt
l_. •
9/27/2006
Storinwater Management Calculations
Design Storm Event 1.0 in. rainfall event
Storm water Management 15A NCAC 211.1005 3(h)
Total Drainage Area
On -site Drainage Area 1.91 ac.
Off -Site Drainage Area 0 ac.
Total Drainage Area 1.91 ac.
Soils Report Data
Soil Type* Baymeade Fine Sand
Infiltration Rate* (IR) 6.0 in/hr.
Apparent Water Table Elev.** 48 in.
*Taken from the Soil Survey Manual, U.S. Dept. of Agriculture
**Data taken from On -Site Field Investigation
Total # of Drainage Basins
Drainage Basin Area #4 83,291 s.f.
Drainsee Basin #4
OCT - 3 2006
DWQ-WARD
Description
Area
(FT 2)
Factor
©
Adj. Impervious
Area (FT z )
Asphalt Bus Loop
18,424
1.00
18,424
Conc. Sidewalk
9,381
1.00
9,381
Landscaping Stone
2,549
1.00
2,549
Building
3,522
1.00
3,522
Impervious Coverage Total 33,876
Adjusted Impervious Coverage Total
33,876
Total Basin Area (ft 2 )
83,291
Calculated Impervious Coverage
33,876
Percent Impervious(1)
41
Rv=.05+.009(1)
0.42
Required Pond Volume (ft3) _ (1712")xR „xDA Ix43,560
2,888 t
Proposed Pond Storage Depth
2.0
Surface Area Provided @ Pond Bottom (SA bona,,,)
6,599 —
Sw f ace Area Provided @ Storage Elevation (SA,,,,,,,,)
20,116
Existing Ground Elevation
12
Proposed Basin Bottom Elevation (TPet,,)
10.50
Proposed Storage Elevation (Se1e1,)
12,50 f
Total Storage Volitme Provided (Sfl)Z
26,715 /
.Storage Volume Provided Storage Volume Req'd
O.K.
Ratio of storage volume provided to storage volume required
9.25
Drawdown Calculations
Qdrawdown — (SV/SAhol1om)/1R
Total Storage Volume Provided
Total Basin Bottom Sutface Area (SA
In -.Sint Soil Basin Bottom Sun face Area (SA botto„ t )
Soil Infiltration Rate 6.00 in/hr
Polling .Soil Basin Bottom .Stuface Area (SA bottom )
Factor of Safety Applied
Calculated Potting Soil Basin Bottom Surface Area (SA bottom )
Estitnated Soillnfillration Rate 0.50 in/hr
Anticipated Drawdown Period
Drawdown Period
Drawdown Period is < 5 clays
O.K.
0.42 ac.
0.22 ac.
0.06 ac.
0.08 ac.
0.78 ac.
0.78 ac.
1.91 ac.
0.78 ac.
ft3
ft.
ft2
ft2
ft. rnsl
ft. msl
ft. msl
0
26,715 ft2
6,599 ft2
6,168 ft'
0.50 ft3/hr/ft'
43 I't2
10
431 ft2
0.0415 W/hr/ftl
105.68 hrs
4.40 days

E3sfE��. � `,I

a
Permit No.
to he provided y
State of North Carolina
Department of Environment and Natural Resources�����
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
OCT - 3 2006
INFILTRATION BASIN SUPPLEMENT DWQ-WARD
This form may be photocopied for use as an original
DWO Stormwater Manallement Plan Review:
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 : Manteo Middle School
Contact Person: Mr, Mark Bissell, P.E. Phone Number: R [phone]
This worksheet applies to: Basin No. Bio-Ret # 1 A in Drainage Area
(as identified on plans)
N
(from Form SWU-101)
II. 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 (finsl).
Soils Report Summary
Soil Type Baymeade Fine Sand .
Infiltration Rate 6.0-20.0 in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 8.0'
frnsl (Seasonal Nigh Water Table elevation)
Basin Design Parameters
Design Storm 1.0 inch (1.5 inch event for SA waters, 1 inch event for others)
Design Volume 5961 c.f.
Drawdown Time 4.0 7Z hrs
ArPrwvEb FOOfE59t
Basin Dimensions
Basin Size ft. x
Basin Volume Provided 14145 c.f.
Basin Elevations
Bottom Elevation 11.0 fmsl
Storage Elevation 13.0 fmsl
Top Elevation 13.0 fmsl
Page I of 3
(irregular geometry see attached plan)
ft. = sq. ft. (hortom dimensions)
Form 5 W U- 103 Rcv.3.99

III. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manuz
(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 supportinj
documentation is attached. If the applicant has designated an agent in the Stormwater Management Perini
Application Form, the agent may initial below. Attach justification if a.requirement has not been met.
itials
a. System is located 50 feet from class SA waters and 30 feet from other suiface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the -seasonal. high water table:
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not�sited on or in fill material or DWQ approval has,been obtained.
L
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.
Drainage area for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity. of 0.52 inches per hour and soils report is
attached.
System captures and infiltrates -the runoff from the first 1 0-ffil ch. of}iaiiiifall (1:5 inch event
for'areas-draining to SA'waters }. Design,voIii. i and infiltration cai6W$ ons 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. ealcuhwons.atta cheA -
All side slopes stabilized with vegetated cover am no -steeper than 3:1 (H:V).
A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
in. Bottom of the device is covered with a layer of clean sand to an, average depth: of 4 inches
go or dense vegetative cover is provided.
w4 r*mdS O&L n- Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
hv t *-b Tor -LW length is 50 feet for SA waters, 30 feet for other waters). .
f'4a41F Pr4U►4Eb
.Wj' Flow. distribution mechanism within the basin. is provided.
�fivctt ��K3
r aw T1 If. A benchmark is provided to determine the;sediment accumulation in the pretreatment
device.
(Awm� av�rll�coc✓ ,
• egy q. Runoff in'excess of the design volume bypasses off-line systems (bypass detail provided).
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.
L411A,1,- 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

FJ.
INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
l
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.
When the design depth reads 11. S .'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 A 000 must be designed, approved and constructed.
I acknowledge and agree by my signature below that I am responsible for the performa9ce 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:,
S ?
%.)W60 (a 2
/�,
Alhw
Address: P.O. .2104
(.11(0
,,,(&)-taO
27�
t-1'
Phone: _.ZSZL.1j73- 3625
Signature:
Date: Z- Z 3- o G
Note: The legally responsible party s' ul of 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.
l
G 1, G jt d� 6t ��U� _ _ _, a Notary Public r the State of V��7� �' h�ounty of
do hereby certify that Q fw) ) E-4), personally appeared before me this
day of 10 P-U� . and acknowledge the due execution of the forgoing infiltration basin maintenance `
requirements. Witness my hand and official seal,
o " OFF4CIAL SEAL" L. I
SE �''', ;. Notary Public, North Carolina My commission expires
r;ounty of Dare
N3ncy W. Marren
�• �' M Cor — -scion F-x Tres 4/10l2010
Form e- .9Page 3 of 3

Drainage Basin #3 -0 3T x,,UATM T'VMiT 1.Efi UACA!'
Stormwater Management Calculations
Design .Storm Event 1.0 in. rainfall event
Stornmater Management 15A NCAC 21-L 1005 3(h)
Total Drainage Area
On -site Drainage Area 3.37 ac.
Off -Site Drainage Area 0 ac.
Total Drainage Area 3.37 ac.
Solis Report Data
Soil Type* Baymeade Fine sand
Infiltration Rate* (IR) 6.0 in/hr.
Apparent Water Table Elev.** 48 in.
*Taken from the Soil Survey Manual, U.S. Dept. ofAgriculutre
**Data taken from On -Silo Field Investigation
Total # of Drainage Basins
Drainage Basin Area #3 146,788 s.f.
Drainage Basin #3
OCT - 3 2006
DWQ-WARD
Description
Area
(FT ` )
Factor
©
Adj.linpervious
Area (FT z )
Asphalt Parking & Drives
36,582
1.00
36,582
Conc. Sidewalk
10,034
1.00
10,034
10' Asphalt Emergency Access Drive
428
1.00
428
18' Gravel Access Road
2,532
1.00
2,532
Landscaping Stone
2,855
1.00
2,855
Building
18,897
1.00
18,897
impervious coverage totat ia,sets
Adjusted Impervious Coverage Total
71,328
Total Basin Area (ft z)
146,788
Calculated Impervious Coverage
71,328
Percent Impervious(l)
49
Rv = .05+ .009(I)
0.49
Required Pond Volume (ft3) = (1"112")xR ,xDA 1x43,560
5,961
Surface Area Provided @ Pond 1 Bottom (SA bonon, )
14,514
.Surface Area Provided rf Pond 1 Storage Elevation (SA ,, rRRe)
20,778
Proposed Basin I Bottom Elevation (TPe1 v)
11.5
Proposed Basin I Storage Elevation (S ete, )'
13.0
Storage Volume of Basin I Provided (.SV)
26,469
Surface Area Provided @ Pond 1A Bottom (SA 6 )
5,145
Surface Area Provided @ Pond lA Storage Elevation (SA S,o age)
9,000
Proposed Basin IA Bottom Elevation (TP,,,,)
11.00
Proposed Basin IA Storage Elevation (S e1e)
13.00
Storage Voltune of Basin lA Provided (SV)
14,145
Total Storage Volume Provided (SV)
40,614
SlorageVolume Provided >Slorage Volume Req'd
O.K.
Ratio of storage volume provided to storage volume required
6.81
Alrrl����
U Ili . *" �V,\I
PI:I r] 1 VW
0.84 ac.
0.23 ac.
0.01 ac.
0.06 ac.
0.07 ac.
0.43 ac.
1.64 ac.
1.64 ac.
3.37 ac.
1.64 ac.
ft3
€t2
ft2
ft
ft
ft3
ft2
ft2
ft. ms]
ft. mS1
Ft3
0
9/27/2006

Drainage Basin #3
Drawdown Calculations Basin #lA
Qdwa d.,, = (SV/SAbortom)11R
Total Storage Volume Provided
ioral Basin Bottom SlafaceArea (SA bottom)
In -Situ .Soil Basin Bottom Sur face Area (.SA battot,r )
Infiltration Rate 6.00 in/hr
,ng Soil Basin Bottom SwfaceArea (SA barro,r, )
actor of Safety Applied
alculated Potting Soil Basin Bottom Surface Area (SA bottom)
nimated Soil Infiltration Rate 0.50 in/hr
ticipated Drawdown Period
iwdown Period
rwdown Period is < 5 days
O.K.
14,145 ft'
5,145 ft'
4,895 I't'
0.50 ft3/hr/ft2
25 ft2
10
250 ft'
0.0415 ft3/hr/ft3
71.77 hrs
2.99 days
9/27/2006

Permit No.
(to be provided by DIVO
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality RECEIVED
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT MAR 1 0 2006
This farm may be photocopied for use as an original DWQ-WARO
DWO Stormwater-Manap-ement Plan Review:
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 : Manteo Middle School
Contact Person: Mr. Mark Bissell. P.E.
This worksheet applies to: Basin No. Inf-Basin#2
(as identified on plans)
Phone Number: ([phone]
in Drainage Area $
(from Form SWU-101)
II. 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 Baymeade Fine Sand
Infiltration Rate 6.0-20.0 in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 7.0' fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm 1.0
Design Volutne 3422
inch (1.5 inch event for SA waters, I inch event for others)
c. F.
Drawdown Time 6.0 hrs.
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
(irregular geometry see attached plan)
ft. X ft. = sq. ft. (bottom dimensions)
33729
c.f.
9.5
fmsl
12.0
fmsl
12.0
fmsl
Page I of 3
Form SWU-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 109) 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 ifa:requirement has not been met.
itials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b.
C.
d.
e.
f.
System is located at least 100 feet from water supply wells.
Bottom of system is at least 2 feet above the.seasonal high.water table:
Bottom of the system -is 3 feet above any bedrock or impervious soil horizon.
System is not'sited on or in All material or DWQ approval has,been obtained.
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.
Drainage area -for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity. of 0.52 inches per hour and soils report is
attached.
System captures and infiltraites the runoff from the first 1.0-inch oi`iai ifall 0 -5 inch event
for -areas -draining to SA waters ). -Design'voluirie and infiltrat�oa caIcuIuttions a taehed.
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. ealeulations-attached-.
k. All side slopes stabilized with vegetated cover are no -steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
in. Bottom of the device is covered with a layer of clean sand to awaverage -depth: of 4,inches
or dense vegetative cover is provided.
Vegetated filter is provided for overflow and detail .is shown on plans (Required minimum
m&v t WD To rzrc- length is 50 feet for SA waters, 30 feet for other waters)..
fc4024v- Pftu%DEb
,,w r Flow. distribution mechanism within the basin is provided.
�fn•ctt KeiM�:3
4fs cw if. A benchmark is provided to determine the; sediment accumulation in the pretreatment
device.
N� a��rZFiot+✓ ,
L-g ­Al2C A*W q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
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.
I
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

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 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.
When the design depth reads 10.12 S . 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 A 000 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: j AlG 5 ifr ,,?
Address: l; qC' A!�'d-o
Phone: 75 Z; Y"7 3 363 5 Date: Z- 7 3 -O G
Signature:
Note: The legally responsible parry should.notiie a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
t , a Notary Pub is for the State of
ll �� UU1 �.gECounty of
1 , do hereby certify that Q-�- C,)6u U personally appeared before me this
day of �5�O�M, and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
SE OFFICIALSFft.l_ "
?' ''•b= Notary Public, igOrth Carolina
County of f1�Fts
t' Na r.y VV Ndwren
Fo it3--Rw3°99
My commission expireslLf c� v
Page 3 of 3

_.. t� �;� _ _�
.:�,.�
1 �
S �

i
Permit No.
(to be provided y J
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality RFmCFmIVE1)
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT MAR 10
2006
This form may be photocopied for use as an original D iyy Q- �YY ARO
DWO Stormwater Management Plan Review:
A complete stonnwater management plan submittal includes a stonnwater 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.
1. PROJECT INFORMATION
Project Name : Manteo Middle School
Contact Person: Mr. Mark Bissell. P.E.
This worksheet applies to: Basin No, Inf-Basin#1
(as identified on plans)
Phone Number: t [phone]
in Drainage Area 4
(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 Baymeade Fine Sand
Infiltration Rate 6.0-20.0 in/hr or cflhrlsf (circle appropriate units)
SI-IWT Elevation 8.0' fmsl (Seasonal High Water Tahle elevation)
Basin Design Parameters
Design Storm 1.0
Design Volume 2888
Drawdown Time 8.0
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
inch (1.5 inch event far SA waters, 1 inch event for others)
c.f.
hrs
(irregular geometry see attached plan)
ft. x ft. = sq. ft. (bottom dimensions)
26715 c.f.
10.5
fmsl
12.5
fmsl
12.5
fmsl
Page 1 of 3
Form SWU-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 Coc,
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.
ltials
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.
d.
e.
f.
Bottom of system is at least 2 feet above the. seasonal high, water table:
Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
System is not sited on or in fill material or DWQ approval hasbeen obtained.
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.
Drainage area -for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity.of 0.52 inches per hour and soils report is
attached.
System captures and infiltrates the runoff from the first 1.0'inch.ofiaiii fall (1.5..inch event
forareas 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. Calculationsattached.
k_ All side slopes stabilized with vegetated cover am no -steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed Swale or
sediment trap is provided.
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.
&-9 rtiKdS j?,W a n. Vegetated filter is provided for overflow and detail .is shown on plans (Required minimum
�ruv t4tk� ra r� length is 50 feet for SA waters, 30 feet for other waters)..
tr+�� wrwv�Ofb .
Flow. distribution mechanism within the basin.is provided.
�3� rtlf A benchmark is provided to determine the sediment accumulation in the pretreatment
device.
AN w►e?�Z�cvr✓ ,
e6u q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
T. 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.
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

IV. INFII.TRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
P 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 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.
When the design depth reads 11.Sj* - 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: A!&C %> f7 . 01A)E g1`KZj�C V1 Z A- 2 -�r X10
Address: ?.U. qyaX Gqo :!!Itt-A1AID _r_. ZZ yS-'r
Phone: Z! Z- u 7 3' 3 (, 3 5 Date: Z- Z!2 -G jr, _
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.
1 a Not Public for the State of C"'��Coun of
aryry
do hereby certify that ?.A79-1)QXG �A— personally appeared before me this�_�
day of, and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
S ,r... • OFFICIAL - SEAL " My commission expires l L7 >-6 f
Notary R;bHC, Norlh Carolina
f con;. ty of Dare
F Nar,(�v W. Warren
F -t corReKa99xpires411012010 Page 3 of 3 -

4f - I

Pennit No.
(to be provided by DI VQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality RECEIVE
STORMWATER MANAGEMENT PERMIT APPLICATION FORM ��ss
INFILTRATION BASIN SUPPLEMENT MAR 1 0 2006
This form may be photocopied for use as an original DWQ_WARO
DWQ Stormwater Management Plan Review: II 9 �/
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 : Manteo Middle School
Contact Person: Mr. Mark Bissell, P.E. Phone Number: 1(252) 261-3266
This worksheet applies to: Basin No. Bio-Ret # 1 A in Drainage Area 3
(as identified on plans)
(from Form SWU-101)
II. 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 Baymeade Fine Sand
Infiltration Rate 6.0-20.0 in/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation $,0' fmSl (Seasonal Nigh Water Table elevation)
Basin Design Parameters
Design Storm 1.0
Design Volume 5961
Drawdown Time 4.0
Basin Dimensions
Basin Size ft. x
Basin Volume Provided 14145
Basin Elevations
Bottom Elevation 11.0
Storage Elevation 13.0
Top Elevation 13.0
inch (1.5 inch event for SA raters, I inch evens for others)
c. f.
hrs
c. f.
fmsl
fmsl
frost
Page I of 3
Form S W U- i 03 Rev3.99
(irregular geometry see attached plan)
ft. = sq. ft. (bottont dimensions)

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.
tials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the.seasonal high. water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DWQ approval has been obtained.
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.
Drainage area for the device is less than 5 acres.
Soils have a minimum by �nlic conductivity. of 0.52 inches per hour and soils report is
attached.
System captures and infiltrates the runoff from the first Iftinch.orai dfall (1,S inch event
for -areas draining to.SA waters ). Design, Vblume 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.-
k. All side slopes stabilized with vegetated cover. are no -steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
in. Bottom of the device is covered with a layer of clean sand to an:average -depthof 4,inches
or dense vegetative cover is provided.
&-q omaS ON n. Vegetated filter is provided for overflow and detail .is shown on plans (Required minimum
mav ► oez ra rttg- length is 50 feet for SA waters, 30 feet for other waters). .
Flow. distribution mechanism within the basin.is provided.
�fNcc{- .k�Mics
nar L 4n ew s1*. A benchmark is provided to determine the%sediment accumulation in the pretreatment
device.
Aw ov�it�iov-�,
(.-q , Zcw o a. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
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.
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

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 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.
When the design depth reads I %, 'T . 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.
1 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: 5
_ 2
�,.)I--J4r
/64A.) l 6 crr 7"F,
Address: Plc?• _? X
BYO
A;.)-1L 0 AAC
2 7�
Z -7 " 3G 7 r Date: Z- Z3 -oG
Signature:
Note: The legally responsible party shoul"ot 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, (A-) a Notary Public f r the State of /�o��GC `-�t_-,!�County of
do hereby certify that , ��f'tQ/J Lo personally appeared before me this
day of .IO and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
OrFICIAL SEAL" L r jQ 1 7�
5E Notary Pt,b,fc, North Caroiina My commission expires [ U
�f,; County of Dare
t{ Nan ,y W Warren
•• M Comm ;;ion Ex Tres 4/10/2010
Fo v`3.� Page 3 of 3

t•

Permit No.
to he provided y
State of North Carolina
Department of Environment and Natural Resources RECEIVED
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM MAR 1 0 2006
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
D v Q"WARO
DWQ Stormwater Management Plan Review:
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 : Manteo Middle School
Contact Person: Mr. Mark Bissell, P.E.
This worksheet applies to: Basin No. Bio-Ret 4 1
(as identified on plans)
Phone Number: I [phone]
in Drainage Area 3
(from Fowl SWU-101)
II. 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 Baymeade Fine Sand
Infiltration Rate 6.0-20.0 in/hr or cf/hr/sf (circle appropriate units)
SL-LWT Elevation 8.0' fmSl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm 1.0
Design Volume 5961
Drawdown Time 4.0
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
inch (1.5 inch event for SA waters, 1 inch event for others)
c. f.
hrs
(irregular geometry sec attached plan)
ft. x ft. = sq. ft. (bottom eliniensions)
26469
c.f.
11.5
fmsl
13.0
fmsl
13.0
fmsl
Page 1 of 3
Form S W U-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.
tials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b. System is located at least 100 feet from water supply wells.
c. Bottom of system is at least 2 feet above the -seasonal high-water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
e. System is not sited on or in fill material or DWQ approval has been obtained.
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.
Drainage area for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity. of 0.52 inches per hour and soils report is
attached.
i. System captures and infiltrates the runoff from the first 1.0 inch. ofrairifall (I..5 inch event
for areas draining to.SA waters ). Design volume and inftltion calculations attached.
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. C.alculations-attached.
k. All side slopes stabilized with vegetated cover. are no steeper than 3:1 (H: V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
m. Bottom of the device is covered with a layer of clean sand to an average j depth, of 4 inches
or dense vegetative cover is provided.
6.9rn,K91.Qwo n.
Vegetated filter is provided for overflow and detail is shown on plans (Required minimum
rrav t tab To r%W
length is 50 feet for SA waters, 30 feet for other waters).
Flow_ distribution mechanism within the basin is provided_
Rf-&C MtKS
oav ► twz o,4 vi if.
A benchmark is provided to deter -nine the,sediment accumulation in the pretreatment
device.
I�w o,��rlPio�✓ .
- egy >q.
Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
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
s.
pertinent draw -down calculations are attached.
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.
Form SWU-103 Rev 3.99 Page 2 of 3

i
.. � � �� �•
' '
i

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 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.
When the design depth reads 11.87 I . 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:
Address: _� 4 >30 �cy ?'yl Lc) Al C _ L 2
Phone: ; `� 3 — 3 t" 3� Date: Z - z 1�7- Gv
Signature:
Note: The legally responsible party ihould'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, , a Notary Public r the State of ounry of
do hereby certify that naLz) personally appeared before me this
day of , adb and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
"OFFICIAL SEAL'
Notary Public. North Carolina
Na- -'y' kN. WEIF�-er,
M•�`. AA CofT1n!;��pnkxri�t3547?Ol2a10
My commission expires_ L 1 b 1
Page 3 of 3

Permit No.
to he provide y
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality RECED
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT MAR 10 2006
This form may be photocopied for rise rrs an original `n� ry
DWO Stormwater Manap-ement Plan Review: ��ArYY ~o _Yy~��
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. PR03ECT INFORMATION
Project Name : Manteo Middle School
Contact Person: Mr. Mark Bissell, P.E.
This worksheet applies to: Basin No. Bio-Ret # 2
(as identified on plans)
Phone Number: ([phone]
in Drainage Area 5
(from Form SWU-101)
II. 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 learia loamy fine sand
Infiltration Rate 0.6-2.0 in/hr or cf/lir/sf (circle appropriate units)
SN WT Elevation 8.0' fmsl (Seasonal High Water Table elevation)
Basin Design Parameters
Design Storm 1.0
Design Volume 4324
Drawdown Time 11.0
Basin Dimensions
Basin Size
ft. x
Basin Volume Provided
23234
Basin Elevations
Bottom Elevation
10.5
Storage Elevation
12.0
Top Elevation
12.0
inch (1.5 inch event for SA waters, I inch event for others)
c. f.
hrs
c.f.
fmsl
fmsl
fmsl
Page I of 3
Fonn SWU-103 Rev.3.99
(irregular geometry sce attached plan)
ft. = Sq. ft. (bottom dimensions)

i
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.
itials
a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
b.
C.
d.
e.
f.
System is located at -least 100 feet from water supply wells.
Bottom of system is at least 2 feet above the. se, high• water table:
Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
System is not'sited on or in fill material or DWQ approval has been obtained.
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.
Drainage area -for the device is less than 5 acres.
Soils have a minimum hydraulic conductivity. of 0.52 inches per hour and soils report is
attached.
System captures and infiltrates the runoff from the first 1.0"iach o irai`rifall (1.S inch event
for -areas -draining to SA'waters ). Design volume wind 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.
k. All side slopes stabilized with vegetated cover. are no steeper than 3:1 (H:V).
1. A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or
sediment trap is provided.
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.
r.-`!rr'yXS RkUb n. Vegetated filter is provided for overflow and detail.is shown on plans (Required minimum
�r"v, t-b To 'r %W length is 50 feet for SA waters, 30 feet for other waters)..
f4+tflor pmv t�
:r Flow distribution mechanism within the basin.is provided.
Rf.-C* #k-Ntrs
onw►wb a,4 if. A benchmark is provided to determine the -sediment accumulation in the pretreatment
device.
Ah� ov�rjPtaa✓ .
- , - ;ft q. Runoff in excess of the design volume bypasses off-line systems (bypass detail provided).
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.
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

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%v 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.
If
When the design depth reads 1 ,b7S_ . 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: _,� h .L 5 ?Z . Ld),&k
Address:v 4:2 . GOIZ (.-'4 ,vl,� �'IG-_U •✓G _ _L 74
i
Phone: 2 • `'f 7 3- 3 3 5 Date: _-2 - Z,5 — UCH
Signature:
Note: The legally responsible party
not 6e a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
a Notary Public for the State of- � 4, County of
do hereby certify that a rlcu L personally appeared before me this Pl
day of and acknowledge the due execution of the forgoing infiltration basin maintenance
requirements. Witness my hand and official seal,
SE "rl �� "OFFICIAL SEAS • My commission expires t a
5
Notary Public. North Carolina
� %€f ' el''!I'y of Dare
W, Warren
-•�' M-Cornri�:s,oEx ires411o12010
Form - nPage 3 of 3