SW7080517_CURRENT PERMIT_20081002

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
Sw
DOC TYPE
'C'CURRENT PERMIT
APPROVED PLANS
El HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

M-
Michael F. Easley, Governor
Willram(] Ross Jr, Secretary
North Carolina Department of Environment and Natural Resources
Coleen H Sullins, Director
October 2, 2008
Ms. Deborah Diaz, Town Manager
Town of Kill Devil Hills
102 Town Hall Drive
Kill Devil Hills, NC 27948
Subject: Stormwater Permit No. SVV7080517
Kill Devil Hills Satellite Fire Station
High Density Project
Dare County
Dear Ms. Diaz:
Division of Water Qualin
The Washington Regional Office received a complete Stormwater Management Permit
Application for Kill Devil Hills Satellite Fire Station on May 21, 2008. 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.1 000. We are forwarding Permit No.
SW7080517 dated October 2, 2008, for the construction of the subject project.
I;L-
.JI 3
This permit shall be effective from the date of issuance until Odt ber , 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 Samir Dumpor, or me at [phone].
Sincerely,
Al Hodge
Regional Supervisor
Surface Water Protection Section
AH/sd: J:\WPDATA\WQS\Samir - State SW\Perrnits - Infiltration
cc: Milissa England, DJG, Inc. (449 McLaws Circle, Williamsburg, VA 23185)
. _Qare County Building Inspections
—,INashington Regional Office
Central Files
North Carolina Division of Water Quality Internet. ��w irewateratialitv.or One
943 Waishingion Square Mail Phone [phone] NorthCarolina
Washington, NC 27889 Fax [phone] Naturally
An Equal Opportunity/Affinative Action Employer— 50% Recycled110% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7080517
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
Town of Kill Devil Hills
Kill Devil Hills Satellite Fire S�tation
Dare County
FOR THE
construction, operation and maintenance of 4 infiltration basin in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "storm water rules') and
the approved stormwater management plans and specifications and other supporting
data as attached and on file with and approved by the Division of Water Quality and
considered a part of this permit.
This permit shall be effective from the date of issuance until October 2, 2018, and shall
be subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from total of 21,067 square feet
of impervious area. These basins must be operated with a 30' vegetated filter.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of
this permit, and per approved plans.
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 the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
6. The following design criteria have been provided in the infiltration basins and
must be maintained at design condition:
Page 2 of 8

State Stormwater Management Systems
Permit No. SW7080517
Basin I
Basin 2
a.
Drainage Area, acres:
0.08 (3,625 sf)
0.08 (3,625)
b.
Total Impervious Surfaces, ft2:
3,530
3,530
C.
Design Storm, inches:
1.00
1.00
d.
Basin Depth, feet:
1.00
1.00
e.
Bottom Elevation, FMSL
8.00
8.00
f.
Bottom Surface Area, ft2.
95
95
9.
Bypass Weir Elevation, FMSL
9.00
9.00
h.
Permitted Storage Volume, ft3:
241
241
i.
Type of Soil:
Corolla Soil B Sands
j.
Expected Infiltration Rate, in/hr:
0.70
0.70
k.
Seasonal High Water Table, FMSL
5.00
5.00
1.
Time to Draw Down, hours:
24
24
M.
Receiving Stream/River Basin: Atlantic Ocean / Pasquotank River Basin
n.
Stream Index Number:
99-(7)
0.
Classification of Water Body:
"SB"
Basin 3
Basin 4
a.
Drainage Area, acres:
0.07 (3,155 sf)
0.19 (8,262)
b.
Total Impervious Surfaces, ft2:
2,295
7,352
C.
Design Storm, inches:
1.00
1.00
d.
Basin Depth, feet:
1.00
1.50
e.
Bottorn Elevation, FMSL
8.00
8.00
f.
Bottom Surface Area, ft2:
864
2,689
9.
Bypass Weir Elevation, FMSL
9.00
9.50
h.
Permitted Storage Volume, ft3:
1,096
5,252
i.
Type of Soil:
Corolla Soil B Sands
j.
Expected Infiltration Rate, in/hr:
0.70
0.70
k.
Seasonal High Water Table, FMSL
5.00
3.00
1.
Time to Draw Down, hours:
24
24
M.
Receiving Stream/River Basin: Atlantic
Ocean / Pasquotank River Basin
Page 3 of 8

State Stormwater Management Systems
Permit No. SW7080517
Stream Index Number: 99-(7)
0. Classification of Water Body: "SB"
11. SCHEDULE OF COMPLIANCE
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 surface.
During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
9. A clear access path to the bypass structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
Upon completion of construction, prior to issuance of a Certificate of Occupancy,
and prior to operation of this permitted facility, a certification must be received
from an appropriate designer for the system installed certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting documentation. Any deviations from the
approved plans and specifications must be noted on the Certification. A
modification may be required for those deviations.
If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
The permiftee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW7080517
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
12. The Director may notify the permiftee 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 pernnittee 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.
Ill. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, documentation
from the parties involved, and other supporting materials as may be appropriate.
The approval of this request will be considered on its merits and may or may not
be approved. The permiftee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
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 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having 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 permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW7080517
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
10. This permit shall be effective from the date of issuance until October 2, 2018.
Application for permit renewal shall be submitted 180 days prior to the expiration
date of this permit and must be accompanied by the processing fee.
Permit issued this the 2nd day of October, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
4�U4 tQ /// Z-��A for
Goleen H. 8 lins, Director
Division of rater Quality
By Authority of the Environmental Management Commission
Permit No. SW7080617
Page 6 of 8

State Stormwater Management Systems
Permit No. SW7080517
Kill Devil Hills Satellite Fire Station
Stormwater Permit No. SW7080517
Dare Count
Designer's Certification
1, , as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
(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.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 7 of 8

State Stormwater Management Systems
Permit No. SW7080517
Certification Requirements:
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 bypass structure weir elevation is per the approved plan.
6. The bypass structure is located per the approved plans.
7. A Trash Rack is provided on the bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. All required design depths are provided.
13. All required parts of the system are provided.
14. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Dare County Building Inspections
Page 8 of 8

W CLZ2��
DWQ USE ONLY
IF::�at''ceived Fee Paid I Permit Number
I I _`> W76 e 05- / -7
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
Thisform may be pholocopiedfor use as an or�ginal
SEP '12 M18
1. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. w o o ns h OM -WA RO
11 t e project):
Town of Kill Devil Hills
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Deborah Diaz, Town Manager
3. Mailing Address for person listed in item 2 above:
102 Town Hall Drive
City:Kill Devil Hills State:NC Zip:27948
Phone: [phone] Fax:
Email:
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc:):
Town of Kill Devil Hills - Satellite Fire Station
5. Location of Project (street address):
2011 South Croatan Highway
City:Kill Devil Hills, NC , County:Dare*
6. Directions to project (from nearest major intersection):
Pro*ect is located at the intersection of US Higway 158 and Eighth Street
7. Latitude:2 5de Tees 59 min 36 sec Longitude:-75 degrees 38 min 56 sec of project
8- Contact person who can answer questions about the project:
Name:Milissa England Telephone Number: (757 ) 253-0673
Email:[e-mail]
it. PERMIT INFORMATION:
1. Specify whether project is (check one): ZNew E]Renewal E)Modification
2. If this application is beix� submitted as the result of a renewal or modification to an existing permit, list the
existing permi ' t numberl /A and its issue date (if known)
3. Specify the type of project (check one):
E]Low Density ZHigh Density F]Redevelop E]General Permit E]Umversal SMP E]Other
4. Additional Project Requirements (check applicable blanks):
Form SWU- 10 1 Version 8.07 Page I of 4

DCAMA Major (DSed imentation/ Erosion Control E]404/401 Permit ZNPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
Ill. 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 .
Site stormwater to be retained and infiltrated to 4 KDH engineer approved infiltration basins. Off site stormwater
is to be collected in 7 inlet structures and conveyed to existing'KDH Croatan Hwy stormwMer line. Any basin
overflow shall be collected in ]drop inlet and conveved to the existing Croatan Hwy stormwater line
2. Stormwater runoff from this project drains to the Atlantic Ocean River basin.
3. Total Site Area: .94 acres 4. Total Wetlands Area: 0 acres
5. 100'Wide Strip of Welland Area: N/A acres (not applicable if no Wetlands exist on site)
6. Total Project Area":.94 acres 7. Project Built Upon Area:55.2 %
8. H ow many drainage areas does the project have?5
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 N-ame
Atlantic Ocean
Atlantic Ocean
Stream Class & Index No.
Class SB, Index 99-(7)
Class SB, InJex­9F-(7F_
Drainage Area (sf)
3625
3625 -
Existing Impervious* Area (sf)
3948.8
3061.55
Proposed Impervious*Area (sf)
3530
3b3L)
% Impervious* Area (total)
9/1%
97%
Impervious* Surface Area
Drainage Area I
Drainage Area 2
On -site Buildings (sO
343.35
402.39--
On-site Streets (so
0
0
On -site Parking (sf)-
2864.26
2735.21
On -site Sidewalks (sf)
271.22
244.85
Other on -site (sf)
51.17
------------ T47.56
Off -site (sf)
0
0
I otal (sf):
353F_
357-
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
10. How was the off -site impervious area listed above derived
Form SWU- 10 1 Version 8.07 Page 2 of 4

asm n ormation
minage rea
Dramage �rea
eceiving tream ame
trearn ass n e Exo.
7,ainage
Erea
--- AfFan—h—c-07c—ean
JI
— — — C Fa s—s S D-, Fn Te 79 T- (7
_______A_tTaa_nt_,c_Gc—ean
r Fa—s s- S n ex
rea s
---------- 8T6T—
Existing Impervious Area (sf)
mg
Proposed Impervious Area (sf)
(Y. Impervious Area �(total)
----------------------- 1-00'7 —
---------------------- 8-9 -0,%�
Impervious Surface Area
— — — — — — Dr —a i —na—g—c- 71iFea
4--
)-site U11 ings s
n-site treets (s
—
— — — — — — — — — — — — 0-
-site ar ing s
n-site 1 ewa s s
tieron-site s
------
— — — M3-
--------- 777T4--
-Site s
jotaj tsi):
2295
Basin Inlormation
Drainage Area -5
Receiving Stream Name
Atlantic Ocean
Stream Class & Index No.
Class SB, Index 99-(7)
Urarnage Area (sl)
4360--
Existing Impervious* Area (sf)
2644—
Proposed Irnpervious,*Area (sf)
436T—
% Impervious* Area (total)
109F.—
Impervious* Surface Area
Drainage Area 5
On -site Buildings (sf)
2/69.04
On -site Streets (sf)
0
On -site Parking (sf)
On -site Sidewalks (sf)
0
Other on -site (sf)
1590.76—
Off-site (so
0
Total (sl):
.4360

. 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-I
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 p roject. 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 Welland Supplement
Form SW401-Grassed Swale
Grassed Swale Supplement
Form SW401-Sand Filter
Sand Filter Supplement
Form SWU- 10 1 Version 8.07 Page 3 of 4

V1. 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 hitp://h2o.eni.slate.nc.us/su/msi maps.hun)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item. I
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form
• (�iginaalof the applicable Supplement Form(s) and O&M agreement(s) for each BMP
P rnut processing fee of $505 (S4,000 for Express) payable to NCDENR
Calculatlop'sc&alidoentailed narrative description of stormwiter treatment/management
Copy of any applicable soil report
Three copies of plans and specifications (sealed, signed & dated), including:
eve opment/ Project name,
- Engineer and firm
-Legend--
- North arrow�
- Scale �'
- Revision number & date-
- Mean high water line'v'V
- Dimensioned pro erty roject boundary-�
- Location map witf, na ed 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 existv
- Existing drainage (includin off -site), drainage easements, pipe sizes, runoff calculatjons;�
- Dramageareas delineateV
- Vegetated buffers (where requirecl);�,l
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf, please complete this section.
Designated agent (individual or firm):DIG, Inc.
Mailing Address:449 McLaws Circle
City:Williamsburg State:VA Zip:23185
Phone:[phone] Fax: [phone]
Email:[e-mail]
VIII. APPLICANT'S CERTIFICATION
1, (print or type name of person listed in General Information, item 2) nnri��_ OdAvJd k -AA"Pkl�,AJ�_1
certify that the information included on this permit application form is, to the best —,,a �id
of my knowledge, correct and MA,6j668
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will beja"Vded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000.
Signature:
Date
Form SWU- 10 1 Version 8.07 Page 4 of 4

I
Ston-riwater Management for Kill Devi) Hills Satellite I Fire Station:
The Kill Devi] Hills Satellite Fire Station stormwater is managed with I infiltration
Basins. The infiltration basins on site have been designed to handle a 2 hour, 10 year
siorm- The detention required on site is 7,542 cf The detention provided is 7,698 cf.
The site has 65% detenlion� and 35% infiliration.
Site basin overflow will be conveyed to the existing Croatan Highway slormwater
line- Off site storinwater is also conveyed by [he exist
stormwater line. ing Croatan Highwa y
The site infiltration* basins are dry basins which do not floW to a receiving stream but
exfiliratc stormW3tCT runoff from the parking lots, drive'aisles and building into the
soil. Site infiltration rate for the.basins are 0.7'/hour. Site soil consists of sandy
textured Corolla B. Soils.
Basin #1 and N2 are smaller basins which handle the runoff from the 'parking lot area
and some building runoff by downspouts at [he entrance of the station. Basin #3
handles the entrance drive aisle and additional parkin*g northeast of the building. All
remain i ng.runoff from the building and remaining drive aisles surrounding the
apparatus bays are handled by basin ftzi, A trench drain at the exit on Eighth Street
also conveys runoff thru a 6" HDPE pipe to basin H4.
During a st'crin event any on site
stormwater which is not infiltrated by basins N I and
P2 will be conveyed by ai 10" HDPE pipe into basin t13. Stormwaler from basins t1l
? and 3 will be conveyed by a 10" HDPE pipe into basin �4. Any overflow from
basin ft4 will be directed into an inlet drain . ing to a stormwater line existing on
Croatan Highway.

Permit No
(to be provided by D WO)
AMASTORMWATER MANAGEMENT PERMIT APPLICATION FORM DLUW_�
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
11. PROJECT INFORMATION
Project Name
Kill Devil Hills Satellite Fire Station
Contact Person
Milissa England
Phone Number
.253-0673
Date
Drainage Area Number
DA #1
111. DESIGN INFORMATION
Site Characteristics
Drainage area
3,62500 h2
Impervious area
3,530.00 h2
Percent impervious
0.97
Design rainfall depth
4.3 in
Peak Flow Calculations
Is pre/post control of the I-yr 24-hr peak flow required?
Y
(Y or N)
1 -yr, 24 -h r runoff depth
337
in
1-yr, 24-hT intensity
4.3
p/hr
Pre -development 1-yr, 24-hr runoff volume
035
it 3 Isec
Post -development 1,-yr, 24-hr runoff volume
0.31
fi3lSeC
Pre/Post 1 -yr, 24-hr peak flow control
0.0
If 3 /sec
Storage Volume: Non -SR Waters
Minimum design volume required
420
Design volume provided
241
If 3
Storage Volume: SR Waters
1-yr, 24-hr rainfall depth
N/A in
Pre -development 1-yi, 24-ht runoff
it 3 ,
Post -development I-yr, 24-hr runoff
fl3
Minimum volume required
If 3
Volume provided
If 3
Solis Report Summary
Soil type
I Soil - CoB- Corrolla Soil B Sands
Infiltration rate
070 in/hr
SHWT elevation
5.00 finsl
Basin Design Parameters
Drawdown time
1
days
Basin side slopes
3
1
Basin bottom elevation
8.00
fmsl
Storage elevation
9.00
fmsl
Top elevation
900
first
Basin Bottom Dimensions
Basin length
4
If
Basin width
2
If
Bottom SA
95
If 2
Formi SW401�lmfibrabon 8asin Re,i,.1 Paris I & 11 Design Summary, Page 1 of 2

Permit No
tto be provided by DWO)
Additional Information
Total runoff volume captured by basin
Length of vegetative filter for overnow
Distance to structure
Distance from surface waters
Distance from water supply wells)
Separation from impervious soil layer
Naturally occuring soil above shwt
Bottom covered with 4-in of clean sand?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Bypass provided for larger storms?
Pretreatment device provided
0.07
ac-in
125
it
2
ft
1410
h
N/A
it
2
ft
1
it
Y
(Y or N)
N
(Y or N)
Y
(Y of N)
Y
(Y of N)
Form SW401-Infiltration Basin -Rev I Pans I & 11 Design Summary, Page 2 of 2

Pennn Number
(to be �P,o,,idedb); D141Q)
Djan`)3ge Area Number I
Infiltration Basin Inspection and Maintenance Agreement
I will �eep a maintenance record on this BMP. This maintenar%ce record will be kept in a
fog in a known set )Ocahon. Any deficient BMJD 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 ffie removal efficiency of the BMP
Jmpoitant maintenance procedures.
- The drainage area will be carefully managed to reduce the sediment load to the
irdilt7ation basin,
- Immediately after the irdiltrafion basin is established, the vegetation will be
watered twice weekly if needed until Lhe plants be�ome established (commucurdv
six weeks).
- No portion of the inldtjafion basin will be fertilized after the initraYleytili2at-jon
that is required to establish the vegetafion.
- The vegetation in and around the basin will be maintained at a height of
aPProNimalely 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 (mr 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 requesti
Jrispecfion acfivifies shall be performed as follows. Any problems that are found shall
be repaired ifnmecbate)y.
BMP element-.
-ne _entireBmp
Potential problem:
How) will remediate the roblern:
Trash/debirs is present-
Xemove the nash/deb,is.
The perimeter of the
Areas of baye soil and/or
Reg7ade the soil if necessary to
infiltration basin
erosive gullies have formed.
remove bhe gully, and then plant
ground (over and water until it is
estabbsbed. Provide lime and a
The inlet device: pipe or
The pipe is clogged
one-fime lei tilizei a hcafion�
j "Or'
�n
Unclog the pipe. Dispose of the
Swale
applicable),
off -site.
S
The pipe is ciacked or
Esedimeni
Replace the pipe
, Pip
]
otherwise damaged (if
appbcable).
-in
Erosion is occurring the
Regiade the swale if necessary to
swale (if applicable),
srJ)00th it over and provide erosion
control devices such as ieinJoiced
fuji'matung 0, lipjap to avoid
future l2job)ems with erosion.
FOM SW40)-)D17)t'a1u:m Basin J&M�Rev.2 Page ) of 3

Permit
(Io be provided bV D JVQ)
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 anN
problems with the system or prior to any changes to the system or responsible party.
Project naine: 61 0MI Oi'lls _Satelll'fe. Fire Aonvr7
Is BA4P drainage area number: I
Print name: k5HA,,14 ft� . MULRPH
Tille: A,�si5TAtrr -Tow�J MAIMG69
Address:TD%4rJ OF XILL DEVIL 441-L-5 Po.eD4 r7i'? IVILL L)EVIL t-kLL6 AfC �`1948
Phon
S1gDZ
Date: M,-wc)4 31, Z008
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�PA. 9-DD(P_I, a Notary Public for the State of
Ah�E LA
County of F)AR C do hereby cerlify that
�OBA,v�14 12�- MLLRPH� personally appeared before me this 3 ("ITE
day of MARCH 2-006 , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official sea],
A
VIOTARp,'
/QJVJ' 01. /&0td1�0_tiiJ
SEAL
My commission expires MAq lz' ZOO()
Fortri SW401 -Infiltration Basin I&M-Rev.2 Page 3 of 3

Permit
Ito be afovided by DWQJ
kY!t;WJ 0 , A -AT, 11
STORMWATER MANAGEMENT PERMIT APPLICATION FORM DLUa
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,
11. PROJECT INFORMATION
Project Name
Kill Devil Hills Satellite Fire Station
Contact Person
Milissa England
Phone Number
757-253-0673
Date
Drainage Area Number
DA #2
III ' DESIGN INFORMATION
Site Characteristics
Drainage area
3,625.00 ft'
ImpeNious area
3,53000 ft2
Percent Impervious
097
Design rainfall depth
4.3 in
Peak Flow Calculations
Is pre/post control of the 1 -yr 24-ht peak flow required?
Y
(Y or N)
I-yr, 24-hr runoff depth
3.37
in
1 -yr, 24-hr intensity
43
inithr
Pre -development 1-yr, 24-hr runoff volume
0.27
ft'Isec
Post -development I-yr, 24-hr runoff volume
031
ft'/sec
Pre/Post 1 -yr, 24-hr peak flow control
0.0
ft'/sec
Storage Volume: Non -SR Waters
Minimum design volume required
420
ft 3
Design volume provided
241
Storage Volume: SRWaters
1-yr, 24-hr rainfall depth
NIA
in
Pre -development 1-yr, 24-hr runoff
ft 3
Post -development 1-yr, 24-hr runoff
ft 3
Minimum volume required
ft3
Volume provided
Soils Report Summary
Soil type
I Soil - CoB- Corrolla Soil B Sands
Infiltration rate
0.70
inlht
SHWT elevation
5.00
fmst
Basin Design Parameters
Drawdown time
1
days
Basin side slopes
3
1
Basin bottom elevation
800
fmSI
Storage elevation
9.00
fmsl
Top elevation
9.00
fmsl
Basin Bottom Dimensions
Basin length
4
ft
Basin width
2
ft
Bodom SA
95
ft2
Forra SW401-Infiftrabon Basin -Rev I Parts I & It. Design Summary, Page 1 of 2

Permit No
(to be prowded by
Additional Information
Total runoff volume captured by basin
ON
ac-in
Length of vegetative filter for overnow
125
h
Distance to structure
2
fi
Distance from surface waters
1410
ft
Distance from water supply well(s)
N/A
ft
Separation from impervious soil layer
2
fi
Naturally occuring soil above shwi
1
111
Bottom covered wth 4-in of clean sand?
Y
(Y or N)
Recorded drainage easement provided?
N
(Y or N)
CapuTes all runoff at ultimate build-out7
Y
(Y or N)
Bypass provided for larger storms?
Y
(Y or N)
Pretreatment device provided
Y
Form SW401 -infiltration Basu,-Re� 1 Paris I & 11 Desig� Summary, Page 2 of 2

Perynn Number
(to be prov,ded b i, DIVO
Drainage Ajea Number
Wiltra . fion Basin Inspection and Maintenanc.e Agpeement
I will keep a maintenance record on this BMF� T'his maintenance recoyd wil.) 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 mteg:rity
of structures, safety of the public, a-nd the removal efficiency of, . the BMP.
Important maintenance procedures:
The drainage area will be carefully managed to reduce [he sediment )oad.to the
"ilt7afion basin.
Immediately after the irdilt,i.ation basin is established, the vegetation will be
watered twice weekly if needed until the plants, become established (cojrrmc):n)y
six weeks).
7 No porfion of the infiltration bpsin will be.fertilized after the initial fertflizati on
that is Tequired 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 quaxier and wit hi,
24 hours after every storrin event greater than 1.0 inches (or 1.5 inches if in a Coastai
County). Records of inspection and maintenance will b . e kept in a known set location
and wdl be available upon request.
Inspection activities shall be performed as follows. Any problems that are found Shall
be repaired unmecbately.
BNIP element-.
-
-F
Potential problem,
How I widl rem . edi-
te the problem:
he entire BMP
—
Trash/debris is present.
Remove the t7ash/debris
The:perixneter of the
Areas of Wye soil and/or
F6pade the sod il necessary to
infiltration basin
erosive p1bes have formed.
remove the gully, and then plant a
ground (over and water until it is
established. provide hine and a
The ii-del device: pipe or
The pipe is clogged (it
one-time feitihzez application.
Unclog the pipe. Dispose of the
swaJe
..applicable). —
sediment off -site
The pipe is cracked or
R
Replace the pipe.
'p
otherwise damaged (J
applicable).
Erosion is Occurring in the
Regiade the swale if necessary to
swale (if applicable).
smooth 0 Over and provide erosion
cr , 7
control devices such as reinforced
I 'c 1, o'ced
rurf matting 01 TIplap to avoid
t','_ ith erosion.
Form SW401-InfiInai,on Basin I&M-Re,.2
Page I of 3

Permit Number
(ro be pi ovided bi D IIIQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to nolify DWQ of any
problems with the system or prior to any changes to the system OF responsible party.
Project name: k;11 Dra-vil 11i'lls Sa�elll'�e FIre- sze,-ym
BA4P drainage areo number: Z
Print name: k50Asiil 9 - MLLSPH4
Title: mPAAGE7R
Address:Tow4 gf� KILL DP_))U_ PO.E�ov_ 1119 * tKiLL 4C aqq4g
Date: MARCH 31
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� PAIAELis, A. RiDc>toy, , a Notary Public for the State of
County of IDPRe —, do hereby certify that
1,5�iAv,Al R - fALLRPHq personally appeared before me this,31a
day of MAFC_�k , and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official sea],
Mello!
!1&90�
SEAL
My Commission expires rAM IZ,;2009
", 0 &aCu'eK)
Form SW401 -Infiltration Basin I&N1-Rev.2 Page 3 of 3

Permit No.
(to be provided by DWQ)
, WAir,
lc�
A.- A STORMWATER MANAGEMENT PERMIT APPLICATION FORM
NCDENR 401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form most be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information,
11. PROJECT INFORMATION
Project Name Kill Devil Hills Satellite Fire Station
Contact Person Milissa England
Phone Number 757-253-0673
Date
Drainage Area Number DA #3
111. DESIGN INFORMATION
Site Characteristics
Drainage area
3,15500 If?
Impervious area
2,295.00 ft'
Percent impervious
0.73
Design rainfall depth
43 in
Peak Flow Calculations
Is pre/post control of the 1 -yT 24-hr peak flow required?
Y
(Y or N)
1 -yr, 24 -h r runoff depth
3.37
In
1-yr, 24-hf intensity
43
in/hr
Pre -development 1-yr, 24-hr runoff volume
026
If 3 /sec
Post -development 1-yt, 24-hr runoff volume
0.2
ft'/sec
Pre/Post 1 -yr, 24-hr peak flow control
-0.1
It 3 /Sec
Storage Volume: Non -SR Waters
Minimum design volume required
228
fi3
Design volume provided
1,096
1.3
Storage Volume: SR Waters
1 -yr, 24-hr rainfall depth
N/A in
Pre -development 1-yr, 24-hi runoff
It 3
Post -development I-yr, 24-hr runoff
If 3
Minimum volume required
ft3
Volume provided
ft3
Soils Report Summary
Soil type
I Soil - CoB- Corrolla Soil B Sands
Infiltration rate
0.70 inthr
SHWT elevation
5.00 first
Basin Design Parameters
Drawdown time
1
days
Basin side slopes
3
1
Basin bottom elevation
8.00
first
Storage elevation
9.00
first
Top elevation
9.00
fmsl
Basin Boftom Dimensions
Basin length
57
It
Basin width
15
It
Bottom SA
864
ft 2
Form SW401-infilt,al,on Basm�R.v 1 Pans 1. & 11 Design Summary, Page I of 2

Permit
(to be Provided by DWO)
Additional Infonnation
Total runoff volume captured by basin
030
ac-in
Length of vegetative filter for overflow
125
111
Distance to structure
3
ft
Distance from surface waters
1410
ft
Distance from water supply wel[(s)
N/A
ft.
Separation from impervious soil layer
2
11
Naturally occuring soil above shM
I
ft
Bottom covered with 4-in of clean sand?
Y
(Y or N)
Recorded drainage easement provided?
N
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms?
Y
(Y or N)
Pretreatment device provided
Y
Fenn SW401-Infiltration Basin -Rev 1 Paris 1. & I. Design Summary. Page 2 of 2

Pcryni? Numbe,
(10 be povided bY -Dl+'Q)
Dra.nage Ajea Numbey. _:�
InfiltTation Basin Inspection and Maintenance A&r6ernent
I ivLfl �eep a maintenance record on Lhis BNjp This maintenance record will be kept in a
Jog 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'integi-ity
of st - ructures, safety of the public, and the removal efficiency of t-he BMP
Important maintenance procedures:
- The djai-nage area wiD be carefully managed to reduce the.sedirnent load to the
"Otiation basin,
- Immediately after the m-filt-ration basin
is established, the vegetation will be
watered twice weekly if needed until the plants become established (comynor-jN,
six weeks). I
- No portion of ffie inJill-ration basin will be fertilized alley the initial JeTtiluat'ion
that is required to establish the vegetation.
- The vegetation in. and around the basin wdl.be maintained at a height of
approximately six inches.
After the "Utration basin is established, it wiD be inspected once a'quayleir and wit] -,in
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastd
Cou-nty). Records of inspection and maintenance wil-I be kept in a known set location
and will be available up -on request
Inspection activities shall be performed as follows, Any problems that are found shall
be repaired immediately.
BMP
The entire BMP
Potential problem:
How I wiD remedi . ate the problem:
�P
Trash/ debris is pyesenl�
Remove the hash/debri5.
"element-.
I
The perteler of the
" be
infiltration
Areas of bare soil and/ of
Reg7ade the sod if necessary to
in basin
erosive gullies have formed.
remove Lhe pily, and then plant a
ground cover and water until it is
established. Provide Lime and a
The inlet device: pipe or
The pipe is clogged (J
One-time fey tilizei applicafion-
Unclog the pipe Dispose of Lhe
Swale
applicable).
�01*
sediment off -site.
The pipe is cracked
Replace the pipe.
otherwise damaged (if
aEpbcable).
�inlhe
Erosion is Occurring
Belgrade the S.wale if necessary to
5Wale (iJ applicable).
Smooth it over and provide erosion
control devices such as reinforced
turf matting Of Tiprap to avoid
futuie'PiciWems with erosion.
FOPo SW401-Infil"ahon BasiD I&M-Rev 2 Page I of 3

Permit Number
(to beprovided ko DJVQ)
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.
Project naine: kill i9ev-1 / fh'//,!� sotellif e Rre_ sta 16n
BMP drainage area number: tV3
Print narne: �3i­Vmt� f:?,. MLLRPH�
Tille: A5,.)1�5TNt�T -rovitl MAtJAGE7R
Address:Tovu,J, oF KILL -E)E41L 1-�it_1_6 I'llet hiLL- -DEVIL- [+LL5 14C 27 91/8
Phone
Signat
Date: MARCtA %31, 2cola
Note: The legally responsible pariv 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. PAMELA A. R.Dc>rci,, a Notary Public for the State of
County of IDARE —, do hereby ccr-fify that
R. MLLRP`14� personally appeared before me this
day of rAAgCH 200b . and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness iny hand and official sea],
!'IJBLIC
SEAL
My commission expires KAA� lz 2-009
1
Form SW401 -Infiltration Basin I&M-Rev.2 Page 3 of 3

Permit No.
(to be pfowdeof by DWQ)
ApSTORMWATER
0'%At�
��DWW-
NI
MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items
Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
11. PROJECT INFORMATION
Project Name
Kill Devil Hills Satellite Fire Station
Contact Person
Milissa England
Phone Number
757-253-0673
Date
Drainage Area Number
DA #4 and DA #5
111, DESIGN INFORMATION
Site Characteristics
Drainage area
8,26200
, ft2
Impervious area
7,352.00
Ill
Percent impervious
0.89
Design rainfall depth
4.3
in
Peak Flow Calculations
Is pre/post control of the 1-yr 24-hr peak flow required?
Y
(Y or N)
I-yr, 24-hr runoff depth
3.37
in
I-yr, 24-hr intensity
43
in/hr
Pre -development I-yr, 24-hr runoff volume
062
If 3 Isec
Post -development 1-yr, 24-hr runoff volume
0.65
ft'Isec
Pre/Post i-yf, 24-hr peak flow control
U
ftIsec
Storage Volume: Non -SR Waten;
Minimum design volume required
4,639
h3
Design volume provided
5,252
ft 3
Storage Volume: SR Waters
1 -yr, 24-hr rainfall depth
N/A
in
Pre -development 1-yf, 24-hr runoff
W
Post -development I-yr, 24-hr runoff
ft 3
Minimum volume required
ft3
Volume provided
Soils Report Summary
Soil type
I Soil - CoB- Corolla Soil B Sands
Infiltration rate
0.70
in/hr
SHWT elevation
3.00
imsl
Basin Design Parameters
Drawdown time
I
days
Basin side slopes
3
.1
Basin bottom elevation
800
fmsl
Storage elevation
9-SO
fmSI
Top elevation
950
fmsl
Basin Bottom Dimensions
Basin length
217
1
Basin width
12
It
Bottom SA
2,689
ft2
Form SW401-Infiltrabon Basm-Revl Pans I & 11 Design Summary, Page I of 2

Permit No.
(to be provided by D-W-0)
Additional Information
Total runoff volume captured by basin
0.96
ac-in
Length of vegetative filter for overflow
125
If
Distance to structure
21
ft
Distance from surface waters
1410
ft
Distance from water supply welfi(s)
NIA
It
Separation from impervious soil layer
2
It
Naturally Docuring soil above shwl
1
If
Bottom covered with 4-in of clean sand?
Y
lY or N)
Recorded drainage easement provided?
N
(Y or N)
Capures all runoff at ultimate build -out?
Y
(Y or N)
Bypass provided for larger storms7
Y
(Y or N)
Pretreatment device provided
No
Form SW401-Infisnatio. Bas.n-Rev.1 Paris I & 11 Design Summary, Page 2 of 2

PCTTni, Numbev
0obeP,0,,dedb,. Divo)
I n-fi I tra ti On Aira Nu.rnbe, __:I --
.Basin Inspection andNaintenance AgTeeMent
I wL" keep a maintenance record on this BMP This maintenance record w
l0g I-n a known set 10(ati . on. Any deficient BMP elements . ifl be kept in a
noted in the inspection wjJJ be
coTiecied, repaired or replaced immediate)),. -These deficiencies can allec I the rj�leg)r)ty
01 StTuct-ures, safety of Lhe public, and the eMOVal effici6ricy of the BMP
)jnpoilani maintenance procedures:
- ne djai-nage area.wil) be carefully ma . naged to reduce the s6dim-ent J`oad to the
inJilt-ration basin.
- Immediately after the "Ut-ration basin is established, the veg . elation wJJ be
watered twice weekly if needed uDW I . he plants become established (con'UnDinly
5j)( weeks)
- No portion of Lhe irdfltiation basin will be leytilized after ffie initial leifilization
that is required to establish the vegetation /'
- The vegetation in and around The basin will be maintained at a height of
appTo)cimately si)( inches
A i Ifer the in-filtiation basin is establAhed, )I will be inspected once a quarter and witilin
24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in , Coastaj
Cou-nty)- 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 shal . I
be repaired immediately.
1`0� SW401-Infilt,aijon Basin )&M-Rev

Peunn Number
(to be P) ol rated bi DHIP)
I acknowledge and agree by my signature below that I all, responsible for the
perforroance of (lie maintenance procedures listed above. I agree to nOljfv DWQ of any
problems with the system Or prior 10 any changes to the system or respons'ible party.
Projecinaine: On pe,111 P///s 50ft-111-te- Fl�e-stj�N'
BAIP drOifloge oreo number 0
PTjjn name: �5HAVW R - MLLROHq
'I'llic: A66i6-mKiT -17ov.1NI KAA&JAC� EF�
Address:TOvji,i ()F 1/�tj I J>Eq,,_ t-HL_L6 P. C)- i3()Y- 19 19 V,%LL- DE'4tL 141L.L.5 tc- P-,iq4 I
Phone -
Signature:
Note: The legally responsible Pany should not be a homeowners association unless more that, 50% of
the lots have been sold and a resident of the subdivision has been named the president
1: PAmF LA A R �Dc),cK I a Notary Public for the State of
County of IDA12,E
do hereby certify that
.-OviAwid, R. r\&t_LRpt4�1 personally appeared before me this
(lay of tvNARCH � PC)OB : and acknowledge the due execution of fire
forgoing infiltration basin maintenance requirements. Witness my hand and official sea],
,O�
r, ' A A.
%
AN Z
SEAL
MY commission expires 12, 2009
Frinn SW401-Infidnaurin Basin I&M-Rev.2 Page 3 of 3

Pe,-m)t Numbe,--
0Obe.ji,o,4dedb,- D14,Q)
Diainage Ajea Nu,,b,,
IrLfilt-rafion Basin Inspection and Maintenance Ag-reement
I wW ),eep a maintenance record on Ous BMP This maintenance record will be �ept in a
109 i-n.a k-DOwn set locahon. Any deficient BMP elements noted in the'it-ispection will be
corrected, Yepaijed or replaced immediate]), These deficiencies can affect the inleg-rity
of st-ru,cwres, safety of the public, and the removal efficiency of Lhe BMP
hiripoilani maintenance procedures:
The diamage area will be carefull-y managed to reduce tire sediment load to the
infiltration basin
hrunediale)y after Lhe irdiltiation basin is established, the vegelahon wJl be
watered Iwice,weeMy if needed unfil the pla-nls become . established (commonly
six weeks).
Noportion of the irddfy�tiorr basm wJJ be leitiJized aJtey the initial Jertiji2ation
that is required to establish the vegeiah . on
The, vegeta6on in and around the basin vvdl be maintained at a height of
aPPJO)(IMalely six iniches.
After the infilt-raficin basin i . s . est ablished. it will be mspected once a quai-JeT and wit)-iin
24 hours after every storm event greater tha
I -n 1.0 inches (or 1-5 inches if in a Coast 2d
County). Records of inspection and mal-nienance will be )�epi in a �nown set locafi(Dn
and will be available upon Yequesi
Inspection activifies shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
PolentiaJ piob)eui-
How I will rernediale the
The entire BMP
TY ash/ debris is pi�senl
problem:
J<emOve [be tiash/debyis,
The perimeter of I e
Areas of baie soil andloy
Regiade the soil il necessary to
infflhafion basin
ejosive guWes have formed.
remove the gully. and Then plant a
ground cover and water until it is
established Provide Lime and a
The irdel device: pipe or
The pipe is clogged (9
one-time leyfibzei application.
Unclog the pipe Dispos e of Lhe
Swale
appbcable)
.
sediment oil-sile,
The pipe is cjac�ed or
Replace the pipe.
otherwise damaged (d
applicable)
Erosion is OCCU17mg ii) the
Regiade t-he Swale if necessar), to
Swale (iJ applicable),
smooth it ove) and provide erosion
control devices such �5 Yeinforced
t-uTt m3"W9 Oy Tiplap to avoid
luruie piciblems will) erosion.
Form SW401-Infilualicin Basin J&N1-R6v.2 P— I —f I

Pernin Number
(10 be P, 01 ided bi DWQ)
I acknowledge and agree by my signature below that I -air' responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the systern or prior to any changes to the system or responsible parly-
r
Projeci nanie: e1*11 aeol M //S St-fe/ble- Fl�e-'Stam�
BA4P dranioge areo nU177ber -9
Print name: OHAvJkf P, . MLLRPH q
'fille: A�),5116-MkIT -TFWM MApIALqEP�
Addrcss:TC),,jtA Cf7 KiLL C)EVu- I+ILL6 P 0. EY,,� I t+,j_L'6 tfC ?,j9'kF'
Phone:
signall
Dale: P
.. 1. —1
Note: The legally responsible Parry should not bea homeoxvitcjs association unless more than 50% of
tile lots have been sold and a resident of the subdivision has been named the president
PA -LP\ A. -y Public for the State of
tAF � it Notair
; County Of -DARE � do hereby certify that
- k5R—P"ALM- 192. MLLPPHI personally appeared before me this 311ir
day of MABC-H —e ZcoP, . and acknowledge the due execution of the
forgoing infiltration basin maintenance requirements. Witness my hand and official sea],
e:" 140TAQ�,
K 10
P
IJBL%C*
SEAL
My commission expires tA
Form SW401-Infidnalion Basin I&M-Rev.2 Page 3 of 3

STORMWATER SUBMITTAL REQUIREMENTS
INFILTRATION/lEXIFILTRATION SYSTEMS
Basins and Trench
Objective
A. Collect all runoff from all BUA (proposed and/or existing and/or offsite) as the case may be,
by any means including piping or swales, and direct it to the infiltration system.
B. Check the proposed basin/ trench design to make sure it meets or exceeds the minimum
design criteria for design storm, volume and drawdown.
II. What makes up a complete infiltration basin / trench application package?
A. Two sets of sealed, signed & dated layout & grading plans with appropriate details.
B. Completed application with supplement(s), SWU-101, SW401 -Infiltration Trench, SW401-
Infiltration Basin, and inspection and maintenance agreements.
C. Deed restriction document, if applicable. (subdivisions & projects with out parcels)
D. Sealed, signed & dated calculations.
E. A soils report containing information in regard to the soil type, boring locations, seasonal high
water table elevation and expected infiltration rate.
F. Chlorides test results must be provided if the project is within 1/2 mile of SIR waters (Phase 11).
(This is only required to test out of SIR water treatment requirements)
Ill. BIMS entry (for DWQ use only)
Enter & track application acknowledged date, review date, add info requested/received dates, permit
issue dates, and drainage area info. Best done after the add info letter is written and before sending
permit up for signature.
IV. Shell documents (for DWQ use only)
Permit shells: s:\wqs\stormwater\shell\shighcominbasin
S:�wqs\stormwater\shells\highcomintrench
s:\wqs\stormwater\shells\hig hsu bin basin
s:\wqs\stormwater\shells\highsubintrench
Calculations: s:\wqs\stormwater\excel spreadsheets\inbasin
s:\wqs\stormwater\excel spreadsheets\intrench
V. Review Procedure- look for consistency between the various elements of the package- application,
plan and calculations.
A. APPjJCATION
1 . V Original signatures are required. Photocopied signatures cannot be accepted.
2. A completed infiltration basin or infiltration trench supplement, one for each proposed
system. A signed, dated and notarized Inspection and Maintenance Agreement for
each proposed system with an original signature.
3. The elevations, areas and volumes reported on the supplement match up to the
,/numbers used in the calculations and shown on the plan details.
4. v Built -upon areas are reported in square feet in Section 111.6.
5. Receiving stream name and classification.
6.v'�Section 111.6 is filled in -cannot be left blank. One column must be filled in for each
" proposed infiltration basin or trench.
7. V' If the applicant is a corporation, partnership or LLC, look it up on the Secretary of State
.,Own Corporations Database. Make sure corporation is spelled correctly (capitalization and
punctuation matter) and that the person signing the application is at least a vice-
president in the corporation, a General Partner in the partnership, a member in a
member -managed LLC, or the manager of a manager -managed LLC. Need
documentation to support if the Articles of Incorporation do not list the members or
managers of the LLC. If an agent signs, then a letter of authorization is needed from the
,/Apresident, vice president, general partner, member or manager.
8. For subdivided projects, a signed and notarized deed restriction statement must be
provided.
9. Soils report with the SHWT, Soil type and expected infiltration rate.
1-voll "

Infiltration Basin & Trench, cont.
B. CALCULATIONS
I The basin or trench must draw down within 5 days. Spray irrigation is not acceptable as
the sole means of drawdown.
2. 0)*he design storm is 1.5" if the project is subject to Phase I I or is sited within 112mile of
and draining to SA waters. The design storm for projects subject to Phase 11 sited
within 1/2 mile of and draining to SIR waters must treat the difference between the pre
and post development conditions for the 1-yr 24-hr storm. Otherwise, use 1" design
/storm.
3. V Report the bottom surface area.
4. Report the surface area at the overflow elevation.
5. Show the calculation for the minimum required volume.
6. Provide a table of elevations, areas, incremental volumes and accumulated volumes to
demonstrate that the minimum required volume has been provided.
7. Calculations are signed, sealed & dated.
8. Report the Drainage Area and Built -upon area for each basin or trench.
9. The seasonal high water table must be at least 24" below the proposed bottom
elevation of the system. For Phase 11 projects, at least 12" of this must be in naturally
occurring soils.
10. All runoff in excess of the design storm must bypass to a vegetated filter prior to
entering the basin or trench. If the system is designed to store a larger design storm
(generally 2-3 times the minimum), the requirementfor an offline bypass can bewaived.
Please contact the Division to determine what design storm is appropriate for the
project.

Infiltration Basin & Trench, cont.
C. PLANS - Plan sheets should be kept to a minimum. For small commercial single basin
projects, the plan set could consist of only 2 or 3 sheets, layout, grading and details. For
larger projects, show as much information as possible on as few sheets as possible, without
cluttering them up.
1. V�Development/Project Name
2:VEngineer name and firm.
3. �/, Legend
4. ��North Arrow
5. ;/ Location Map with nearest intersection of two major roads shown. Major road is any 1,
,/2, or 3 digit NC, US or interstate highway.
6. v
_ /Scale- standard engineering scale, no off-the-wall stuff.
7. v Date
8. evision number and date, if applicable.
9. Acqriginal contours, proposed contours, spot elevations, finished floor elevations, pipe
inverts, swale inverts, etc.
10 . VExisting drainage (piping, swales, ditches, ponds, etc.), including off -site. Include a map
Aelineating the offsite drainage areas.
11 V Property/Project boundary lines bearing & distances.
12PAean High Water Line or Norm�i High Water Line, if applicable.
13Y Drainage easement locations shown on the plans along with their width.
'2 14. Wetlands delineated, or a note on the plans that none exist. Provide a copy of the
wetlands delineation map signed by the Corps of Engineers, or have the applicant
include a copy of the unsigned delineation map submitted to the Corps. Infiltration
systems may not be located in wetlands unless a permit to fill those wetlands has been
t7 obtained and the soils meet the SHWT and hydraulic conductivity requirements.
15. Details for the roads, parking, cul-cle-sacs, including sidewalk width, radii, dimensions &
slopes.
166A,�partment / Condo development- provide a typical building footprint with dimensions,
.'/Tand note all concrete and wood deck areas.
17 he drainage area for each basin or trench is clearly delineated and numbered to match
up to the calculations and supplement. Drainage area delineation is best done as a
separate plan sheet.
18. A basin section detail showing bottom and storage elevations, 3:1 side slopes. The side
slopes of an infiltration basin are not restricted to vegetation. They may be hardened
ith rock, timber, concrete, decorative brick, etc.
I OWWA trench section detail with the perforated pipe diameter, filter fabric wrapped around
the pipe and around the trench, trench height and width. rock fill type.
20V/Af using a pre-fab chamber structure, provide details of the chamber, including model #,
length, width, chamber volume and number of chambers being used.
21. A bypass structure detail is provided showing a trash rack with 56" square openings,
and the necessary bypass weir or pipe elevation. Several types of bypass structure
designs are acceptable.
22. Dimensions for each line and arc formed by the bottom contour of an infiltration basin.
23. All runoff in excess of the design storm must pass through a vegetated filter prior to
being discharged into the receiving stream. The filter must be 50' long for SA waters
/and 30' long for non -SA waters.
24Y,/All infiltration systems must be located at least 50'from the MHW line of surface waters.
25. v Vegetation is specified for basin slopes not being hardened. Weeping Love Grass is not
suitable as a permanent vegetated cover for side slopes.
'7— 26. All roof drainage must be directed to the system. Show the roof drain collection piping
on the plans. This is especially necessary for projects where the buildings back up the
property lines where roof drainage may leave the site prior to going through the system.
27. Monitoring wells may be required on a case -by -case basis.