SW7080320_HISTORICAL FILE_20110810

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

BERTIE COUNTY
PLANNING & INSPECTIONS
PO Box 530 106 DUNDEE STREET
WINDSOR, NC 27983
PUNmNc:[phone] 1svecn0M:[phone]
M➢SANCEABA7vAor .[phone]
fax [phone] w .eobertie.ncxs
EGEA V ED
MEMORANDUM AUG 10 2011
TO: Ricky Spivey, Bertie County Water Department
Vic Thompson, Natural Resources Conservation Service
Misty Deanes, Bertie County Emergency Management
Win Bridgers, North Carolina Department of Transportation
Kim Hedrick, NC Division of Coastal Management
Will Hart, Division of Land Quality
CAI :Hodge,_Divisionof Water Quality)
Charles Joyner, McDavid Associates, Inc.
FROM: Traci White'; Bertie County Planning Director
RE: MASTER PLAN FOR REDESIGN of SCOTCH HALL PRESERVE
DATE: August 9, 2011
The attached master plan for SCOTCH HALL PRESERvE has been submitted to the Bertie
County Planning Department for review. Please review and return comments, if any, along
with notification of any required state permit or plan approvals, to the Bertie County Planning
Department by August 16, 2011.
If you have any questions, please feel free to contact me at [phone] or
traci.whiteC@_bertie.nc.gov. k Id
Thank you.
Attachment(s)
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O'UPCHURC// ASSOC/ I TES
NJC
CONSULSULL\'%'C F,A'CL\'EL• RS
P.O. BOX 1737
300 SOUTH WEST BROAD STREET
SOUTHERN PINES, NORTH CAROLINA 28387
PHONE: [phone]
FAX: [phone]
To: NCDENR-Washington Regional Oftice
943 Washington Square Mall
Washington, NC 27889
The Following Item(s) :
O Shop Drawings O Prints
t� Copy of Letter O Change Order
Date
LETTER OF TRANSMITTAL
Date: 7/31/2009 lJob No. BE0803
Arm. Samir
Ref: Innsbrook Clubhouse/Villas
Bioretention Revisions
Wears sending you: 8
®AttAttached
l� Under separate cover VIA
AUG 3 22009
oSamples O Specificatio'M J'V' "R0
0 Revised Plans
These are Transmitted as Checked Below :
O For Approval O Approved as Submitted
0 Resubmit for Approval
O For Your Use O Approved as Noted
O Submit For Distribution
O As Requested E�-- Returned for Corrections
O Return Corrected Prints
O For Review and Comment O
O Prints Returned After Loan to Us
Remarks: Samar,
Attached are the revised sheet lot the bioretention areas converting them from landscaped to grassed.
From our conversations your reply was to just submit a plan revision because the grass areas are less
stringent that the landscaped areas.
Please call me if you have any questions concerning the plans
Thank you for all your help.
Copy To:
Signed: � v"L-
Frank Wanko,

4 waw)
MCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor
Mr. William C. Stillwagon
Rial Corporation
P.O. Box 248
Merry Hill, NC 27957
Subject:
Dear Mr. Stillwagon:
Director
Stormwater Permit No. SW7080320 Modification
Innsbrook Clubhouse and Fitness Center
High Density Commercial Bio-Retention Project
Bertie County
The Washington Regional Office received a complete Stormwater Management Permit
Application for Innsbrook Clubhouse and Fitness Center Modification on December 12,
2008. Staff review of the plans and specifications has determined that the project, as
proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-
211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7080320
Modification dated March 16, 2009, for the construction of the subject project.
This permit shall be effective from the date of issuance until March 16, 2019, shall void
Permit No. SW7080320 dated April 4, 2008, 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, P.O. Drawer 27447, Raleigh, NC 27611-
7447. 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].
ince ely,
4—A od
Regional Supervisor
Surface Water Protection Section
AH/ sd: J:\WPDATA\WQS\Samir - State SW\Permits-Bioretention
cc: Frank Wanko, Hobbs, Upchurch and Associates, PA (PO Box 1737,
Southern Pines, NC 28388)
WBrtie County Building Inspections
ashington Regional Office
Central Files
Noah Carolina Division of Water Quality, Internet: www.ncwaternuality ore
943 Washington Square Mall Phone: [phone] One
Washington, NC 27889 PAX 252-946-9215 NorthCaroll/ina
An Equal Opportunity/Affirmative Action Employer —50% Recycledll0% Post Consumer Paper Nat=[[,11

State Stormwater Management Systems
Permit No. SW7080320 Modification
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
Rial Corporation
Innsbrook Clubhouse and Fitness Center Modification
Bertie County
FOR THE
construction, operation and maintenance of 7 bioretention basins. The drainage areas
for basins 1, 2, 4 and a portion of 3 (originally permitted on April 4, 2008) are in
compliance with the provisions of 1995 Stormwater rules and these rules are still in
effect for said basins, while the drainage areas for remainder of basin 3 and for basins
5, 6 and 7 are in compliance with the provisions of Session Law 2008-211 and 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.
This permit shall be effective from the date of issuance until March 16, 2009, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 245,739 square feet of
impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in Section
1.7 of this permit, and per the application documents and as shown on the
approved plans.
4. All stormwater collection
dedicated common area
s
Paqe 2 of 8

Mate z:itormwater management bystems
Permit No. SW7080320 Modification
iN
The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
The built -upon areas associated with the drainage areas 5, 6, 7 and a portion of
drainage area 3, shall be located at least 50 feet landward of all perennial and
intermittent surface waters.
The following design criteria have been provided in the bioretention basin and
must be maintained at design condition:
BASIN #1
BASIN #2
a. Drainage Area, sf:
146,725
129,643
b. Total Impervious Surfaces, ft2:
85,646
72,706
C. Design Storm, inches:
1.0
1.0
d. Max. Ponded Depth, feet:
0.75
0.75
e. Seasonal High Water Table, fmsl:
9.5
9.5
f. Planting Media Depth, feet:
3.0
3.0
g. Basin Dimensions, feet:
138'x69'
126'x64'
h. Bottom Elevation, fmsl:
13.25
19.0
i. Bottom Surface Area, ft2:
9,340
8,000
j. Permitted Storage Volume, ft3:
7,035
5,993
k. Bypass / Storage Elevation, fmsl:
17.0
23.0
n. Drawdown Time, hours:
12
12
o. Underdrain Diameter, inches:
4
4
P. Total number of plants provided:
87
74
q. Receiving Stream/River Basin:
Black Walnut Swamp / Chowan
r. Stream Index Number:
25-25
S. Classification of Water Body:
"C; NSW"
BASIN #3
BASIN #4
a. Drainage Area, sf:
66,403
32,391
b. Total Impervious Surfaces, ft2:
17,663
9,306
C. Design Storm, inches:
1.5
1.0
d. Max. Ponded Depth, feet:
1.0
0.75
e. Seasonal High Water Table, fmsl:
9.5
9.5
f. Planting Media Depth, feet:
3.0
5.0
g. Basin Dimensions, feet:
69'x34'
48'x24'
h. Bottom Elevation, fmsl:
16.25
17.0
i. Bottom Surface Area, ft2:
2,344
1,150
j. Permitted Storage Volume, ft3:
2,402
833
k. Bypass / Storage Elevation, fmsl:
20.0
23.0
n. Drawdown Time, hours:
12
12
o. Underdrain Diameter, inches:
4
4
P. Total number of plants provided:
22
11
q. Receiving Stream/River Basin:
Black Walnut Swamp / Chowan
r. Stream Index Number:
25-25
S. Classification of Water Body:
"C; NSW"
BASIN #5
BASIN #6
a. Drainage Area, sf:
16,148
60,790
b. Total Impervious Surfaces, ft2:
1,981
27,435
C. Design Storm, inches:
1.5
1.5
d. Max. Ponded Depth, feet:
0.75
1.0
e. Seasonal High Water Table, fmsl:
13.83
13.83
f. Planting Media Depth, feet:
3.0
3.0
g. Basin Dimensions, feet:
36'x12'
110'x32'
Page 3 of 8

State Stormwater Management Systems
Permit No. SW7080320 Modification
h. Bottom Elevation, fmsl:
i. Bottom Surface Area, ft2:
j. Permitted Storage Volume, ft3:
k. Bypass / Storage Elevation, fmsl:
n. Drawdown Time, hours:
o. Underdrain Diameter, inches:
P. Total number of plants provided:
q. Receiving Stream/River Basin:
r. Stream Index Number:
S. Classification of Water Body:
a. Drainage Area, sf:
b. Total Impervious Surfaces, ft2:
C. Design Storm, inches:
d. Max. Ponded Depth, feet:
e. Seasonal High Water Table, fmsl:
f. Planting Media Depth, feet:
g. Basin Dimensions, feet:
h. Bottom Elevation, fmsl:
i. Bottom Surface Area, ft2:
j. Permitted Storage Volume, ft3:
k. Bypass / Storage Elevation, fmsl:
n. Drawdown Time, hours:
o. Underdrain Diameter, inches:
P. Total number of plants provided:
q. Receiving Stream/River Basin:
r. Stream Index Number:
S. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
22.25
21.75
432.0
3,520
324
3,466
26.0
26.0
12
12
4
4
4
33
Black Walnut Swamp / Chowan
25-25
"C; NSW"
BASIN #7
74,115
31,002
1.5
1.0
13.83
3.0
90'x44'
18.0
3,960
3,951
22
12
4
37
Black Walnut Swamp / Chowan
25-25
"C; NSW"
1. 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.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all time 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 re -vegetation of slopes and the filter strip.
d.. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader,
filter media, planting media, underdrains, catch basins and piping.
g. Access to the basin and outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
Page 4 of 8

atate atormwater ivianagement oystems
Permit No. SW7080320 Modification
5. The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance and inspection records for each BMP. The report
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
7. Upon completion of construction, 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.
8. 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.
9. Access to the stormwater facilities shall be maintained via appropriate recorded
easements at all times.
10: The permittee 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.
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.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
12. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
13. 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.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
Page 5 of 8

State Stormwater Management Systems
Permit No. SW7080320 Modification
In the event of a change of ownership, or a name change, the permittee must
submit a completed Name/Ownership Change form signed by both parties, to the
Division of Water Quality, accompanied by the supporting documentation as
listed on page 2 of the form. The approval of this request will be considered on
its merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves a request to transfer the permit.
3. 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.
4. 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.
5. 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.
6. 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.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. 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.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2008-
211, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
Permit i sued this the 16th day of March, 2009.
N RTH 1AROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8

OIQLC Own uVVCI=I IVId I I CRJ.0 I I I C I It Oyt MN IIJ
Permit No. SW7080320 Modification
Innsbrook Clubhouse and Fitness Center Modification
Stormwater Permit No. SW7080320 Modification
Bertie County
Designer's Certification
I, , 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 Name)
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. SW7080320 Modification
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation, per the vegetation plan.
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. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Bertie County Building Inspections

i
W o� CzU copy
"M_- r I r -F1 nr W"%..
�",. .. " DWQ USE ONLY
Date Received
Fee Paid
Permit Number
DEC 1
2'2008
.i�5D5"
�tAi hnstir-�,� .t,�,.�
r State of North Carolina-5R)ACK Ia�j•5 /(%'�
11� R0
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form mm/ be photocopied for use as an original
I. GENERAL INFORMATION
Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Rial Corporation
2. Print Owner/Signing Official's name and title (person legally responsible for facility and
compliance):
3. Mailing Address for person listed in item 2 above:
City:Merry Hill State:NC Zip:27957
Phone: (724 ) 834-5010 Fax:
Email:stillwagonlaw++ erizon n e t
4. Project Name (subdivision, facility, or establishment name - should be consistent with project
name on plans, specifications, letters, operation and maintenance agreements, etc.):
5. Location of Project (street address):
t.0 1 . u C•
City:Nlerry Hill County:fterlie
6. Directions to project (from nearest major intersection):
LIS 17N from Windsor (10 2m). right on SR45 at n idwaX(l 6m1 left on Avoca Farm oa
(4.1 m)
7. Lalilude:36-00-0IN Longitude:76-41-43W of
project
8. Contact person who can answer questions about the project:

Name:Frank Wanko, FlobbsUpchurch & Assoc Telephone Number: (910 ) 692-
Email:[e-mail]
Ii. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal Modification
2. If this application is being submitted as the result of a renewal or modification to an existing
permit, list the existing permit number and its issue date (if known)_
3. Specify the type of project (check one):
Low Density High Density Redevelop General Permit Universal SMP
Other
4. Additional Project Requirements (check applicable blanks):
CAMA Major Sedimentation/Erosion Control 404/401 Permit NPDES
Stormwater
Information on required state permits can be obtained by contacting the Customer Service
Center at
1-877-623-6748.
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 .
Stormwater from the project will be handled using 2 bioretention cells in the northern part of the
project, the
revise Bioretention DA 4 and add three new areas around the villas and tennis courts,
2. Stormwater runoff from this project drains to the Chowan River basin.
3. Total Site Area: N/A acres 4. Total Wetlands Area: N/A
5. 100' Wide Strip of Wetland Area: N/A acres blot applicable if no wetlands exist on site)
6. Total Project Arca**:23.25 acres
8. Flow many drainage areas does the project have?4
7. Project Built Upon Area:6A
9. Complete the following information for each drainage area. If there are more than two
drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.

Basin Information
Drainage Area 1
Drainage Area 2
Receiving Stream Name
See Attached Sheets
See Attached Sheets
Stream Class & Index No.
Drainage Area (so
Existing Impervious* Area (so
Proposed Im ervious"Area (so
% Impervious* Area (total)
Impervious* Surface Area
Drainage Area 1
Drainage Area 2
On -site Buildings (so
On -site Streets (so
On -site Parking (so
On -site Sidewalks (so
Other on -site (so
Off -site (SO
Total (so:
Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sideroalks, gravel areas, etc.
."Total project area shall be calculated based on the current policy regarding inclusion of roetlands in
the built upon area percentage calculation.
10. How was the off -site impervious area listed above derived?There are no off -site impervious
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following deed restrictions and protective covenants are required to be recorded for
all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary
significantly, a table listing each lot number, size and the allowable built -upon area for each lot
must be provided as an attachment.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC-4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded deed restrictions and protective
covenants for this project shall include all the applicable items required in the above form,
that the covenants will be binding on all parties and persons claiming under them, that they
will run with the land, that the required covenants cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot.

V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be
submitted for each BMP specified for this project. Contact the Stormwater and General Permits
Unit at [phone] for the status and availability of these forms.
Form SW401-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW401-Infiltration Trench
Form SW401-Bioretention Cell
Form SW401-Level Spreader
Supplement
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401-Sand Filter
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer
Constricted Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement

VI. 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
litip://li2o.enr.state.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.
nitia
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form 0n wd
• Original of the applicable Supplement Form(s) jmd O&M agreement(s) for ttC11 BMP
• Permit application processing fee of $505 (S4,000 for Express) payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soil report
• Three copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control
measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff
calculations
Drainage areas delineated
Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide
information on your behalf, please complete this section.
Designated agent (individual or firm):Frank Wanko - Hobbs. Upchurch and Assoc.. P.A.
Mailing Address:PO Box 1737
City:Southem Pines State:NC Zip:28188
Phone: (910 ) 692-%16 Fax: [phone])
EmaiLflvanko(i hobbsupchurch.com
VIII. APPLICANT'S CERTIFICATION

1, (print or type mine of person listed in General Information, item 2) William C Stillwagon, President.
Rial Corporation . certify that the information included on this permit application form is, to the
best of my knowledge, correct and that the project will be constructed in conformance with the
approved plan, that the required deed restrictions and protective covenants will be recorded,
and that the propos) d project complies wiPI the requirements of 15A NCAC 2H .1000.
Date: //'Zl-e�4

:...
Basin lnformahon .;k";.
' in Draa a Area 3 Original
�=;.`Draina`e Aiea 3 Redesi n',
Receiving Stream Name
Black Walnut Swamp
Black Walnut Swam
Receiving Stream Class
C;NSW
C;NSW
Drainage Area sf
63,074
1.45
66,403
1.52
Existing Impervious* Area sf
0
0.00
0
0.00
Proposed Impervious* Area sf
8,934
0.21
17,663
0.41
% Impervious* Area total
14.17%
1 26.60%
Im erviobs`SurfaceAread'.
...... ..'Draina e'Area-30ri'inal.',
d''`Diaina erArea'3Redesi'n-;?
On -Site Buildings sf
4,835
9,670
On -Site Streets sf
3,614
6,808
On -Site Parkin sf
485
1,185
On -Site Sidewalks sf
0
0
Other on -site sf (Tennis)
0
0
Off -Site sf
0
0
Total (sf):1
8,934
17,663
B6sin'Information. ;, ..
r ',;. Draina a Area 5'� r ` '
It Draina g a Area 6<' ;
Receiving Stream Name
Black Walnut Swamp
Black Walnut Swam
Receiving Stream Class
C;NSW
C;NSW
Drainage Area sf
16,148
0.37
60,790
1.40
Existing Impervious* Area sf
0
0.00
0
0.00
Proposed Impervious* Area sf
1,981
0.05
27,435
0.63
Impervious* Area total
12.27%
45.13%
Im erviousvSuiface
,.A.
; r+ ,;;".brama erArea
Area
On -Site Buildings sf
0
1,820
On -Site Streets sf
0
0
On -Site Parkin sf
0
0
On -Site Sidewalks sf
1,981
1,135
Other on -site sf
0
24,480
Off -Site sf
0
0
Total sf :
1,981
27,435
Basm lnformaJon ;; _
7 • s Drama e�Area,7i f'%i"
. _.
. t ; "s ;a, 1•.
Receiving Stream Name
Black Walnut Swam
Receiving Stream Class
C;NSW
Drainage Area sf
74,115
1.70
Existing Impervious* Area sf
0
0.00
Proposed Impervious* Area sf
31,002
0.71
% Impervious* Area total
41.83%
Im erviousl.Surface`Area.`s '
Draina'e'AreaT.
" -
On -Site Buildings sf
17,216
On -Site Streets
9,363
On -Site Parkin sf
2,920
On -Site Sidewalks sf
1,503
Other on -site sf
0
Off -Site sf
0
Total sf :
31,002
*brrperviuus area is delined its the built upon area including, but not limited to, buildings, roads, parking
arras. sidenvlks, gravel tit'eas, etc.
funn SWU-101 Version 3,99 Page I of I

Permit
A;F
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
(to be provided by DWQ)
O2nF WATF9OG
h y
O -C
This form must be filled out, printed and submitted.
The Required Items Checklist (Part lll) must be printed, filled out and submitted along with all of the required information.
C,PROdECT'INFORMATION:;
Project name Innsbrook Clubhouse f 1 use and Fitness Center
Contact name Frank Wanko
Phone number 910-692-5616
Date March 31, 2008
Drainage area number Phase 1A-DA3 Redesign
1I DESIGN,INFORMATION,,
Site Characteristics
Drainage area 66,403 ffz
Impervious area 17,663 fir'
Percent impervious 26.6% %
Design rainfall depth 1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non -SR Waters
Design volume
Storage Volume: SR Waters
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Cell Dimensions
Ponding depth of water
Pending depth of water
Surface area of the top of the bioretention cell
Length:
Width:
-or- Radius
Soils Report Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil:
Soil permeability
Planting media soil:
Soil permeability
Soil composition
% Sand (by weight)
% Fines (by weight)
% Organic (by weight)
Y (YorN)
0.46 in
1.96 in/hr
1 ft'/sec
1 ft'/sec
0 ft'Isec
1 60+4 ft' 21q o2
ff3
ff3
0 ff'
ff3
12 inches
OK
1.00 ft
2,344.0 ft2
OK
69 ft
OK
34 ft
OK
ft
12 hr OK
36 hr OK
48 hr
0.03 in/hr Insufficient. Increase infiltration rate.
1.00 in/hr OK
85%
OK
10%
OK
5%
OK
Form SW401-Bioretention-Rev.2 Parts I and II. Design Summary, Page 1 of 2

Total:
Permit Number:
(to be provided by DWQ)
Phosphorus Index (P-Index)
Basin Elevations
Temporary pool elevation
Planting elevation (top of the mulch)
Bottom of the cell
Planting depth
Depth of mulch
SHWT elevation
100%
10 (unitless) OK
20 fmsl
19.25 fmsl
16.25 fmsl
3 It
4 inches
9.5 fmsl
Are underdrains being installed?
Y (Y or N)
How many clean out pipes are being installed?
4
What factor of safety is used for sizing the underdrains? (See
2
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 It
the bottom of the cell to account for underdrains
Bottom of the cell required
15.25 fmsl
Distance from bottom to SHWT
5.75 ff
Type of bioretention cell (answer "Y' to only one of the two
following questions):
Is this a grassed cell?
N (Y or N)
Is this a cell with trees/shrubs?
Y (Y or N)
Planting Plan
Number of tree species
3
Number of shrub species
3
Number of herbaceous groundcover species
3
Additional Information
OK
OK
OK
OK
373
OK media depth
OK
OK
OK
Does volume in excess of the design volume bypass the Y (Y or N) OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed Y (Y or N) OK
through a vegetated filter?
What is the length of the vegetated filter? 30+ It
Does the design use a level spreader to evenly distribute flow? Y (Y or N) Submit a level spreader supplement.
Is the BMP located at least 30 feet from surface waters (50 feet if
Y
(Y or N)
OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
OK
Is the BMP located in a recorded drainage easement with a
N
(Y or N)
Insufficient ROW location,
recorded access easement to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
1'ft/sec
OK
Is the area surrounding the cell likely to undergo development in
N
Y or N) )
OK
the future?
Are the slopes draining to the biorelention cell greater than 20%? N (Y or N) OK
Is the drainage area permanently stabilized? Y (Y or N) OK
Pretreatment Used
(Indicate Type Used with an "X' in the shaded cell)
Gravel and grass
(8`inches gravel followed by 3-5 It of grass) OK
Grassed Swale X
Forebay
Form SW401-Bioretention-Rev.2 Parts I and 11. Design Summary, Page 2 of 2

Permit No
Ito be assigned by DWD)
III:_REQUIRED ITEMS CHECKLIST; ":' t ' �',.: 2'r. ' "Al
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Initials
w
Pagel Plan
Sheet No.
r��
e-t]
1. Plans IV - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- OH -site drainage If applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
- Cell dimensions
- Pretreatment system,
- High flow bypass system.
Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
3. Section view of the bioretention cell (1' = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
- Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the held by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsi). Results of soils tests of both the planting soil and the in
situ soil must include:
- Soil permeability,
- Soil composition (% sand, % fines. % organic), and
u 4 I2
P-index.
5. A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species,
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified.
- A planting detail,
- The source nursery for the plants, and
A9r�.. lI­j
Fertilizer and watering requirements to establish vegetation.
6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
r
7. A construction sequence that shows how the bieretention cell will be protected from sediment until the
m
I
a l d
entire drainage area is stabilized.
-V
4011
8. The supporting calculations (including underdrain calculations, if applicable).
ke
Id
I
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
(4-1)1
0
10. A copy of the deed restriction,
Form SW401.13ioretention-Rev2 Part III, Page 3 of 5

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 3 Redesign
Peak Inflow Calculations
Drainage
Area As: '
c!; �:.: 66,403 SF 1.52 Acres
Pre-develo rrienGlm ervious Area, - 0 SF 0.00 Acres
Post-develo ment:Im ervious Area 17,663 SF 0.41 Acres
Flow.. Q=1.37
coefficient n= ", 0.011
1.54
De th a'':
feet
Width' ft ;i
34.00
'D=(16"(�10"(3)`n/((S)^0.05))^(3/6)
Table,5-1.BMP Manual ,
'. r .,4' Underdrains Required
,
2
Flow.. Q=1.37
coefficient n= ", 0.011
1.54
De th a'':
feet
Width' ft ;i
34.00
'D=(16"(�10"(3)`n/((S)^0.05))^(3/6)
Table,5-1.BMP Manual ,
'. r .,4' Underdrains Required
,
2
De th a'':
feet
Width' ft ;i
34.00
'D=(16"(�10"(3)`n/((S)^0.05))^(3/6)
Table,5-1.BMP Manual ,
'. r .,4' Underdrains Required
,
2

Bioretention Area Supporting Calculations
Area - Phase 1 A - DA 3 Redesign
Intensity Calculations
Finding The 10yr, 24 hr Storm:e 3.34 inches
b `readin attach'ed`cha"
Time of Concentration Calculations
H draulicLength (ft.), �L,': " : 385 feet
Change inEl6atiom(ft.), H ,' 9 feet
Time of Conc r:.TG 3.25 minutes
=(I;8/H) a8s/128
10 r Peak Intensity Calculations
Finding Thet10yr, @ Tc' ", 0.68 inches
b ;readin ;attachedchart '; i
d in /tc min `60 min/hr ' -I 12.56. nches/hour
1 r Peak Intensity Calculations
Finding The,.lyr; @ Tcr, p',', :" 0.46 inches
b',ieadin atiach TcChart•'
d in/tc min'60 min/hr "�,,r ,;: 1.96inches/hour
Note:
This sheet combines the original calculations at 1" rainfall depth and the additional area at 1.5" rainfall depth
Original Impervious Area 8934 sf at 1"
Additional Impervious Area 8729 sf at 1.5"

®"A
NCDENR
Permit Number:
(to be provided by DWO)
o20p WATFgOG
y T
� r
o
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL 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.
I11P.RO'JECTIIN FORMATION
Project name
Innsbrook Clubhouse and Fitness Center
Contact name
Frank Wanko
Phone number
910-692-5616
Date
November 1, 2008
Drainage area number
Phase 1A - DA 5
Site Characteristics
Drainage area
16,148 ft'
Impervious area
1,981 ft,
Percent impervious
12.3% %
Design rainfall depth
1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak Flow required?
Y (Y or N)
1-yr, 24-hr runoff depth
0.46 in
1-yr, 24-hr intensity
4.99 in/hr
Pre -development 1-yr, 24-hr peak flow
1 ft3/sec
Post -development 1-yr, 24-hr peak flow
1 ft3/sec
Pre/Post 1-yr, 24-hr peak control
0 ft3/sec
Storage Volume: Non -SR Waters
Design volume
323.8 ft3
Storage Volume: SR Waters
Pre -development 1-yr, 24-hr runoff
ft3
Post -development 1-yr, 24-hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
9 inches
OK
Ponding depth of water
0.75 It
Surface area of the top of the bioretention cell
432.0 ftZ
OK
Length:
36 ft
OK
Width:
12 ft
OK
-or- Radius
ft
Soils Report Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
36 hr
OK
Drawdown time, total:
48 hr
In -situ soil:
Soil permeability
0.03 in/hr
Insufficient. Increase infiltration rate.
Planting media soil:
Soil permeability
1.00 in/hr
OK
Soil composition
% Sand (by weight)
85%
OK
• Fines (by weight)
10%
OK
• Organic (by weight)
5%
OK
Total: 100%
Form SW401-Bioretention-Rev.2
Parts I and II. Design Summary, Page 1 or 5

Permit Number:
(to be provided by DWQ)
Phosphorus Index (P-Index)
Basin Elevations
Temporary pool elevation
Planting elevation (top of the mulch)
Bottom of the cell
Planting depth
Depth of mulch
SHWT elevation
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
Distance from bottom to SHWT
Type of bioretention cell (answer "Y' to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(B'inches gravel followed by 3-5 It of grass)
Grassed swale
Forebay
10 (unitless)
OK
26 imsl
25.25 fmsl
OK
22.25 fmsl
3 ft
4 inches
OK
13.83 fmsl
OK
Y (Y or N)
2 OK
2 OK
1 fl
21.25 fmsl
7.42 it OK
N (Y or N)
Y (Y or N) OK media depth
3 OK
3 OK
3 OK
Y (Y or N) OK
Y (Y or N) OK
30+ It
Y
(Y or N)
Submit a level spreader supplement.
Y
(Y or N)
OK
Y
(Y or N)
OK
Y
(Y or N)
OK
N
(Y or N)
Insufficient ROW location.
2.03 fUsec
Insufficient inlet velocity unless energy dissipating devices are
being used.
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
W
Ce,
Form SW401-Bioretention-Rev.2 Parts I and 11. Design Summary, Page 2 of 5

Permit No
(to be assigned by OWO)
III.. REQUIRED ITEMSCNECKLIST , ..,' ._ ``T -. ; z ""'=s`
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Initials
Ql_�)—
fi
Pagel Plan
Sheet No.
r��
CSC J(
^'- ".i
� U41
R
Plans It' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
Plan details (1' = 30' or larger) for the bioretention cell showing:
- Cell dimensions
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
Boundaries of drainage easement.
3. Section view of the bioretention cell (1' = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
- Bioretention cell layers (ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (frisl). Results of soils tests of both the planting soil and the in
situ soil must include:
Soil permeability,
- Soil composition (% sand, % fines, % organic), and
P-index.
5. A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species,
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
Agrfe • 6. An assurance that the installed system will meet design specifications upon initial operation once the
n p project is complete and the entire drainage area is stabilized.
L 1 7. A construction sequence that shows how the bioretention cell will be protected from sediment until the
m 'I I entire drainage area is stabilized.
k-W.43 Q 44CII d 8. The supporting calculations (including underdrain calculations, if applicable).
A% A I e d1 9. A copy of the signed and notarized Inspection and maintenance (AM) agreement.
/m UA'L0 10. A copy of the deed restriction.
Form SW401-Igoretenuon-Revz Part III, Page 3 of 5

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 5
Peak Inflow Calculations
P.7e develomentllm ervious P.ercenta
Post-dev',elo mentllm envi3571Percenla
P.re demelomentIRun offWeffZ9nti (CJ
Post`devevelomenllRunToff(Coeffi59ntl(C]�
RainfalllQe th 1Rd e^px �`{';;�,
1:."r241ir'rainfallihtensit'.'sl nl "•�.';,
Pre�develd- ment`1=y�w24`-hr p"eak fldw (Q)'
Q = C;I:A
P76t- Felopment 1-yr, 24=11 peak flow
e
e
M
trs""d.
Q =
(Q)
0.00%
12.27%
0.30
0.37
1.5 in
4.99in/hr
0.55 ft3/sec
Q = CiIFA
Storage Volumes: Non SR Waters Calculations
Rv = mpe`r'vious
Volume required ='3630 ` Rd *'R'v `A°
Basin Structure Calculations
E,, ' Cleanoufsi,Usedi Y#o['N
Qk.
Rv =
V =
Y
0.69 ft3/sec
0.160
323.79 ft3
Q&Vi din
M§ini`-m'°um MHacelA A' fta`
432
0.75
VActualiSiie ft2
432
YLP en'lhft�
36.00
Landscaping Requirements
BasipTS'N iac7e"s'400`/ac[e` w
° 1 Cleano0'1000 ft? of 13 sin
4
0.432
2
Minimum Trees/Shrubs Required
Required
Provided
Underdrains
In SitOK6il�e[meabilit
UnderdraiFKRe" cared ,�? 1 ';
Calculations
0.03
Yes
in/hr
Underdrain Formula
ft'/sec
D�aina e Area (Al
16,146 SF
0.37 Acres
P.re develomentllm ervious Area
0 SF
0.00 Acres
P-ost�de'velo mentllm ery.ious Area
1,961 SF
0.05 Acres
PdstiQevelopmenh_F„I_dw,'Q �
gO.6911Sloe%03era11Diamete9
"" eRe "tfi? y,
feet
12.00
D=(16'(10'Q)'n/((S)^0.05))^(3/8)
Table 5-1 BMP Manual
4" Underdrains Required
2

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 5
Intensity Calculations
Finding The 1'Oyr, 24'-hr Storm:
3.34 inches
b readin attached chart
Time of Concentration Calculations
H 7drauIiF1Me thTft;,,q
205 feet
Chan e i,EI y'.atibin ft1gH®
3 feet
Time of l-onc.: T�
_��3/HI.3e5-128
t/11
2.39 minutes
. .,.
10 r Peak Intensity Calculations
Finding,The�T,Oyr; @ Tc ^,rn;"'
0.68 inches
b'rea� d nrattachedichart _
,-
ii in /tc m n �6.0 min/hr�'
17.04 inches/hour
1 r Peak Intensity Calculations
Finding The' T.'yF, @ Tc i'
0.46 inches
b readin attached chart
d in %tc min' ;F0 mi /h�,
4.99 inches/hour

Permit Number:
Ito be provided by DWQ)
o2Op W A7FgOG
r
o i
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL 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.
Project name
Contact name
Phone number
Date
Drainage area number
Innsbrook Clubhouse and Fitness Center
Frank Wanko
910-692-5616
November 1, 2008
Phase 1 A - DA 6
Site Characteristics
Drainage area
60,790 ft2
Impervious area
27,435 ft2
Percent impervious
45.1% %
Design rainfall depth
1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
Y (Y or N)
1-yr, 24-hr runoff depth
0.46 in
1-yr, 24-hr intensity
5.21 in/hr
Pre -development 1-yr, 24-hr peak flow
2 ft3/sec
Post -development 1-yr, 24-hr peak flow
4 ft3/sec
Pre/Post 1-yr, 24-hr peak control
2 ft3/sec
Storage Volume: Non -SR Waters
Design volume
3,466.4 ft3
Storage Volume: SR Waters
Pre -development 1-yr, 24-hr runoff
It
Post -development 1-yr, 24-hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Surface area of the lop of the bioretention cell
3,520.0 ft2
OK
Length:
110 ft
OK
Width:
32 It
OK
-or- Radius
It
Soils Report Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
36 hr
OK
Drawdown time, total:
48 hr
In-sdu soil:
Soil permeability
0.03 in/hr
Insufficient. Increase infiltration rate.
Planting media soil.
Soil permeability
1.00 in/hr
OK
Soil composition
% Sand (by weight)
85%
OK
% Fines (by weight)
10%
OK
% Organic (by weight)
5%
OK
Total: 100%
Form SW401-Bioretention-Rev.2
Parts I and 11, Design Summary, Page 1 or 5

Permit Number:
(to be provided by DWQJ
Phosphorus Index (P-Index)
Basin Elevations
Temporary pool elevation
Planting elevation (top of the mulch)
Bottom of the cell
Planting depth
Depth of mulch
SHWT elevation
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
Distance from bottom to SHWT
Type of bioretention cell (answer Y' to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume Flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(8inches gravel followed by 3-5 It of grass)
Grassed swale
Forebay
10 (unitless) OK
26 fmsl
24.75 fmsl OK
21.75 fmsl
3ft
4 inches OK
13.83 fmsl OK
Y (Y or N)
6 OK
2 OK
1 It
20.75 fmsl
6.92 ft OK
N (YorN)
Y (Y or N) OK media depth
3 OK
3 OK
3 OK
Y (Y or N) OK
Y (Y or N) OK
30+ ft
Y (Y or N) Submit a level spreader supplement.
Y (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
N (Y or N)
Insufficient ROW location.
2.03 ft/sec
Insufficient inlet velocity unless energy dissipating devices are
being used.
N (Y or N)
OK
N (Y or N)
OK
Y (Y or N)
OK
OK
Form SW401-Bioretention-Rev.2 Parts I and It. Design Summary, Page 2 of 5

Permit No:
(to be assigned by D WO)
III, REQUIRED ITEMS CHECKLIST +. ;'t' " ri.
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet
No.
M� —CJ_
R') es�C((
A,) e-((
1. Plans (1' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- OH -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
2. Plan details (1' = 30' or larger) for the bioretention cell showing:
- Cell dimensions
- Pretreatment system,
- High Flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement.
3. Section view of the bioretention cell (1' = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
Biorelention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underi rains (if applicable),
SHWT level(s), and overflow structure(
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests, The
results of the soils report must be verified in the field by DWO, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
situ soil must include:
- Soil permeability,
- Soil composition (% sand, % fines, % organic), and
- P-index.
5, A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species,
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
Ayee.t. 3 6. An assurance that the installed system will meet design specifications upon initial operation once the
p project is complete and the entire drainage area is stabilized.
7. A construction sequence that shows how the bioretention cell will be protected from sediment until the
A II entire drainage area is stabilized.
MA) a 4404e d 8. The supporting calculations (including underdrain calculations, if applicable).
q� e d 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
(Jya't � 10. A copy of the deed restriction.
Forn SW401-eionnention-Rev.2 Part III, Page 3 of 5

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 6
Peak Inflow Calculations
Drai a e2reai+Q n<'' %;ea?�edt'`a:
60,790 SF
1.40 Acres
Preidevelo me6t^Imervious Area
0 SF
0.00 Acres
Post`acfeeelo me`ntllm ervious Area
27,435 SF
0.63 Acres
:] S G'I�Aq :: t Pa3'v`- � 4 r ,•,'";-iA�BY:'!3a"ct
Post-dbvblopment 1 yr 24�t r peak flow (Q) ,
D = C,I,A,t n y s
Storage Volumes: Non SR Waters Calculations
Rv--05+'9?(impervious (ac)/DA (ac))V',,4
1
0.00%
t5.13%
4.
3466.38
Structure Calculations
-.„;„ Actual -Size(ft`)I 3520 1
rements
Ponding Depth
1 feet
Length ft
,.Width ft
110.00
1 32.00
Basin SA in acres ' 400/acre 33 Minimum Trees/Shrubs Required
1 Cleanout/1000 ft2 of Basini 3.52 Required
6 Provided
Underdrains
In -Situ soil! permeability 0.03 n/hr
(Calculations
Post ,Ded'elopment Flow,; •,Q=
4.15
rou hilesSTiddeff'666f, yR14ii�,.
0.011
0.50%
Overall+Diameter+ `Fm>'"4=
2.33
ft"/sec
Underdrain Formula
D=(16`(10'Q)'n/((S)^0.05))^(3/8)
Table 5.1 BMP Manual
4" Underdrains Required
2

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 6
Intensity Calculations
Finding The TOyr, 24=hr Storm: 3.34
inches
b readin attached chartIII
Time of Concentration Calculations
I; draulic]Len r""thT(ftb,q 220
feet
Chan e inTE13vationT ft3'qH® 1 5
feet
Time of Conc., T-
_�L3/H�,aee/128 2.13
minutes
10 r Peak Intensitv Calculations
Fi'nbinTe 10yr,-@Tc 0.66
inches
b readiacharrti
d in /tc min .60 min/ho 19.12
inches/hour
1 r Peak Intensity Calculations
Finding The 1yr, @ Tc 0.46
inches
b readin attached chartIIIIIIIIIIIIIIIIIIIIIII
if in %tc min:60 min/h�, 5.21
inches/hour

Permit
(to be provided by DWQ)
O?gyp WAifS,OG
�{- 0W NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all of the required information.
Project name
Contact name
Phone number
Date
Drainage area number
Innsbrook Clubhouse and Fitness Center
Frank Wanko
910-692-5616
November 1, 2008
Phase 1 A - DA 7
11.4DESIGNIINF,ORMATION
Site Characteristics
Drainage area
74,115 ft'
Impervious area
31,002 ftZ
Percent impervious
41.8% %
Design rainfall depth
1.5 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak Flow required?
Y (Y or N)
1-yr, 24-hr runoff depth
0.46 in
1-yr, 24-hr intensity
1.4 in/hr
Pre -development 1-yr, 24-hr peak flow
1 ft3/sec
Post -development 1-yr, 24-hr peak Flow
1 ft3/sec
Pre/Post 1-yr, 24-hr peak control
1 ft3/sec
Storage Volume: Non -SR Waters
Design volume
3,950.9 ft3
Storage Volume: SR Waters
Pre -development 1-yr, 24-hr runoff
ft3
Post -development 1-yr, 24-hr runoff
ff3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Surface area of the top of the biorelention cell
3,960.0 ftZ
OK
Length:
90 It
OK
Width:
44 It
OK
-or- Radius
ft
Soils Report Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
36 hr
OK
Drawdown time, total:
48 hr
In -situ soil, -
Soil permeability
0.03 in/hr
Insufficient. Increase infiltration rate.
Planting media soil:
Soil permeability
1.00 in/hr
OK
Soil composition
% Sand (by weight)
85%
OK
% Fines (by weight)
10%
OK
% Organic (by weight)
5%
OK
Total: 100%
Form SW401-Bioretention-Rev.2
Parts I and II. Design Summary, Page 1 of 5

Permit Number:
(to be provided by DWO)
Phosphorus Index (P-Index)
Basin Elevations
Temporary pool elevation
Planting elevation (top of the mulch)
Bottom of the cell
Planting depth
Depth of mulch
SHWT elevation
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
Distance from bottom to SHWT
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume Flow evenly distributed
through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a recorded drainage easement with a
recorded access easement to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in
the future?
10 (unitless) OK
22 fmsl
21 fmsl OK
18 fmsl
3 ft
4 inches OK
13.83 fmsl OK
Y (Y or N)
4 OK
2 OK
1 It
17 fmsl
3.17 it OK
N (Y or N)
Y (Y or N) OK media depth
3 OK
3 OK
3 OK
Y (Y or N) OK
Y (Y or N) OK
30+ (t
Y (Y or N) Submit a level spreader supplement.
Y (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
N (Y or N)
Insufficient ROW location.
2.03 ft/sec
Insufficient inlet velocity unless energy dissipating devices are
being used.
N (YorN)
OK
Are the slopes draining to the bioretention cell greater than 20%? N (Y or N) OK
Is the drainage area permanently stabilized? Y (Y or N) OK
Pretreatment Used
(Indicate Type Used with an "X' in the shaded cell)
Gravel and grass
(B`inches gravel followed by 3-5 ft of grass)
Grassed swale
Forebay
OK
Form SW401-Bioretention-Rev.2 Parts I and II. Design Summary, Page 2 of 5

Permit No:
(to he assigned by DWO)
III:;REGUIRED ITEMS CHECKLIST as - I1: ;' '• , "'
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Initials
9L.)—
Nd/
in
Pagel Plan
Sheet No.
r��
C5_+ ell
UJILI
Plans (t' - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Cell dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Clean out pipe locations,
- Overflow device, and
- Boundaries of drainage easement,
Plan details IV = 30' or larger) for the bioretention cell showing:
- Cell dimensions
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW),
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Clean out pipe locations,
- Overflow device, and
Boundaries of drainage easement
3. Section view of the bioretention cell (1' = 20' or larger) showing:
- Side slopes, 3:1 or lower
- Underdrain system (if applicable), and
- Bioretention cell layers Iground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWO, by completing 8 submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
situ soil must include:
- Soil permeability,
- Soil composition (% sand, % fines, % organic), and
P-index.
5. A detailed planting plan IV = 20' or larger) prepared by a qualified individual showing:
- A variety of suitable species,
- Sizes, spacing and locations of plantings,
- Total quantity of each type of plant specified,
- A planting detail,
- The source nursery for the plants, and
- Fertilizer and watering requirements to establish vegetation.
AFiteA 6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
S'V� N t✓' I 7. A construction sequence that shows how the bioretention cell will be protected from sediment until the
II r I entire drainage area is stabilized.
Q HacN� Id 8. The supporting calculations (including underdrain calculations, if applicable).
9. A copy of the signed and notarized inspection and maintenance (18M) agreement.
/f0yti't 10. A copy of the deed restriction.
Form SW401-Biaretention-Rev.2 Part III, Page 3 of 5

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 7
Peak Inflow Calculations
Drairia a„4reat A
} i` '#axa.;
74,115 SF
1.70 Acres
Prec'iiev"elo me`nt#Im ervious Area
0 SF
0.00 Acres
Landscaping Requirements
Basin SA in acres ' 400/acre : 37 Minimum Trees/Shrubs Required
1 Cleanout/1000 ft of Basin 3.96 Required
4 Provided
Underdrains
n/hr
Underdrains Required
Yes
Calculations
ft /sec =(16"(10'Q)'n/((S)^0.05))^(3/8)
P.,osfdevelo merit#tin ervious Area 31,002 SF 0.71 Acres
Area' ft� 3951
Actual Size` $� 3960
In -Situ soil permeability 0.03
-
rou Hness;coeffcient„,`n,3 0.011
Slo e+` ;;�,i :k�r'�'s'.'#i�i :... �S`. 0.50%
4" Underdrains Required
Overall?Diartieterr' 1.51
Minimum Surface
1 feet
Length,( ft ;Width ft
so.ao aa.00
Underdrain Formula
Post Development Flow:-;�,."Q=_ 1.31
D
Table 5.1 BMP Manual
2
4" Underdrains Required

Bioretention Area Supporting Calculations
Area - Phase 1A - DA 7
Intensity Calculations
Finding The 1WOyr, 24'hr Storm: 3.34
inches
b readin attached cha t
Time of Concentration Calculations
ri d7aulic]LFen thTfit)I,q 430
feet
Chan e ilEIFyation ft11H® 7
feet
Time of Conc.: Tr,
_�La/H,�.sas/128 4.07
minutes
10 r Peak Intensity Calculations
"g'The TOyr, @ Tc�"0.68
inches
b readin attached cha t
d in /tc min i60 min/hi= 10.04
inches/hour
1 r Peak Intensity Calculations
Finding The 1yr, a Tc 0.46
inches
b readin attached chart
d in Ztc nin :60 min/hr,1 1.40
inches/hour

Precipitation Frequency Data Server
h[tp://hdsc.nws.noaa.gov/egi-bin/hdse/bui ldout.perl'?type=pf&units...
POINT PRECIPITATION
FREQUENCY ESTIMATES
0 FROM NOAA ATLAS 14,E
North Carolina 35.5955 N 76.4125 W 9feet
from "Precipitation -Frequency Atlas of the United States" NOAA Atlas 14. Volume 2, Version 3
G.M. nonnin, 1). Martin, B. Lin. T. Parvybok. M.Yckte. and 1). Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
_ Extracted: no Feb 12 2009 _ _
Confidence Limits I Seasonality I Location Maps Other Info. GIs data I Maps I Docs I Retum to State Mal
Precipitation Frequency Estimates (inches)
ARI* 5 10 IS 30 60 120 10 20 30 45 60
(years) ram ram ram ram ram ram dam: d� day
������� 3hr 6hr 12hr 24hr 48hr 4dav 7dav����F
0.46
0.73
0.92
1.26 1.57
1.85 1.99
2.39 2.81 3.34 3.86 4.37 . 5.09 5.77 7.78 9.62 11.91 14.28
0.53
0.84
1.06
1.47 1.84
2.19 2.35
2.83 3.33 4.06 4.67 5.29 6.13 6.92 9.27 11.44 14.10 16.85
5
059
095
1.20
1.70 218
264 285
456678131R1.1F
343 05 25 00 73 70 57 127 .76 699
10
0.68
1.09
1.38
2.00 2.61
3.22 3.50
4.22 5.00 6.25 7.14 7.92 8.99 9.94 12.91 15.62 19.12 22.36
25
0.77
1.23
1.55
2.30 3.07
3.87 4.25
5.14 6.14 7.73 8.86 9.65 10.86 11.89 15.24 18.18 22.32 25.71
50
0.85
1.35
1.72
2.58 3.50
4.51 5.01
6.08 7.30 8.99 10.34 1 L I 1 12.41 13.52 17.15 20.22 24.92 28.37
100
0.92
1.46
L85
2.83 3.90 .5.13
5.76
7.00 8.48 10.39 12.00 12.70 14.07.15.24 19.15 22.32 27.62 31.06
200
0.99
1.57
1.98
3.09 4.33
5.79 6.58
8.03 9.78 11.92 13.85 14.43 15.86 17.09 21.26 24.47 30.45 33.78
500
1.07
1.70
2.14
3.40 4.88
6.67 7.70
9.43 11.58 14.20 16.64 17.04 18.43 19.73 24.23 27.41 34.39 37.48
1000
1.16
I.82
2.29
3.70 5.40
7.52 8.80
10.84 13.41 16.14 19.04 19.40' 20.60 21.90 26.62 29.71 37.53 40.33
' These precipitation fmquencyestimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to NOAANIas 14 Document for more information NOTE: Formal forces estimates near zero to appear as zero.
* Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
AR I** 5 ]0 IS 30 60 t20 3 6 12 24 48 4 7 10 20 30 45 60
(years) min min min min anmin Fr hr hr hr hr day day day day day day day
' -
0.51 0.81 1.01 1.39
1.73 2.05
2.23 2.71 3.17 3.67 4.26 4.78 5.53 6.24 8.36 10.27 12.73 15.17
2
0.58 0.93 1.17 1.62
2.03 2.42
2.63 3.19 3.75 4.47 5.16 5.79 6.67 7.49 9.96 12.22 15.07 17.92
F 5
0.65 1.04 1.32 1.88
2.40 2.92
3.19 3.86 4.56 5.77 6.62 7.36 8.37 9.28 12.12 14.69 18.00 21.17
10
0.75 1.20 1.52 2.20
2.87 3.56
3.91 4.74 5.62 6.86 7.86 8.66 9.77 10.74 13.87 16.67 20.42 23.7R
25
0.85 1.35 1.71 2.53
3.37 4.26
4.74 5.76 6.87 8.47 9.73 10.55 11.78 12.85 16.37 19.40 23.85 27.37
50
0.93 1.49 1.8R 2.83
3.84 4.96
5.57 6.79 8.15 9.85 11.35 12.14 13.4R ]4.62 18.41 21.59 26.64 30.21
100
I.01 1.61 2.03 3.11
4.29 5.64
639 7.82 9.45 11.36 13.20 13.91 15.30 16.50 20.60 23.88 29.57 33.13
20o
1.09 1.73 2.18 3.39
4.75 6.37
7.29 8.94 ]0.89 13.06 15.26 15.83 17.28 18.54 22.92 26.24 32.70 36.13
500
]000
1.18 1.87 2.35 3.74
1.27 2.00 2.52 4.07
5.36 7.35
5.95 R.30
8.53 10.49 12.89 15.61 18.41 18.77 20.16 21.53 26.27 29.53 37.11 40.25
9.77 12.07 14.93 17.80 21.18 21.49 22.66 24.02 29.02 32.14 40.70 43.51
' The upper bound of the confidence intenal a190 %confidence Ill is the value which 5%of the simulated quanlile values for a giten frequencyare greater than.
" These precipitation Irequencyestlmates are based on a paNal duration series. ARI is the Average Recurrence Interval.
Please refer to NOAANIas 14 Document for more information NOT E: Fonnalting prevents estimates near zere to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
ARI** 5 10 IS 30 60 120 3 6 12 24 48 4 7 ]0 20 30 45 60
(years) min min min min min min hr hr hr hr hr day day day day day day day
I of 4 2/ 12/2009 1:15 PM

Precipitation Frequency Data Server
http://hdse.nws.noaa.gov/cgi-bin/hdsc/buildout.perl'?type-pf&units...
0.42 0.67
0.83
1.14 1.42
1.67
1.79
2 15 2.52
3.06 3 53 4.03 4.71 5.37 7.2R 9 02 11.19 13.44
0.4R 0.77
0.97
1.34 1.68 '1.98
2.12
2.55 2.99
3.72 4.28 4.87 ,5.68 6.44 R.67 10.72 13.24 15.8R
I S
0.54 0.86
1.09
L55 1.99
2.39
2.57
3.08 3.64
4.R0 5.48 6.19 7.12 7.95 10.53' 1288 15.R1 18.75
10
0.62 0.99
L26
1.R2 2.37
2.90
3.14
3.77 4.47
5.70 6.50 7.25 R.28 9.19 12.04 14 58 17.89 21.02
25
0.70 1.1 I
1.41
2.08 2.77
3.47
3.79
4.58 5.45
6.99 8.00 8.7R 9.94 10.94 14.12 16.90 20.78 24.08
50
0.77 1.22
1.54
2.33 3.15
4.03
4.44
5.37 6 43
8.07 9 26 10.03 11.28 12.34 15.8o 18.72 23.08 26.45
100
0.83 1.31
1 66
2.54 3.50
4.56
S.OR
6.16 7.40
9.23 10.63 11.36 12.67 13.80 17.51 20.54 25.42 2R.81;
200
O.8R 1.40
1.77
2.75 3.86
5.11
5.75
7.00 8.46
10.48 12.11 12.77 14.14 15.32 19.28 22 38 27.80 31.15
500
lo0o
0.95 L50
1.01 1.60
1.89
2.00
3.00 4.31
3.25 4.74
5.84
6.53
6.66
7.54
8.12 9.87 12.27 14.28 14.83 16.19 17.45 21.68 24.81 31 03 34.20
9.22 11.28 13.74 16.06 16.66 17.86 19.13 23.55 26.68 33.54 36.50
I he lower bound of the confidence interval at 90 % sonAtlence level is the %alue which 5 % of the Sim d ated quani le values for a gran frequency are less than.
" These precipitationfrequencyestimates are based on a oanlal duration maxima series. ARI is the Amerage Recurrence Int 1.
Please refer to NOAAAllas 14 Document for more infonnallon. NOTE: Formatting prevents estimates near sro to appear as zero.
Text version of tables
c
Partial duration based Point Precipitation Frequency Estimates - Version: 3
35.5955 N 76.4125 ll 9 ft
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
I 2 3 4 5 6 7 8 910 20 30 40 50 80100 140 200 300
Average Recurrence Interval (years)
Thu Feb 12 13:10:51 2009
500 700 1000
Duration
5-min
120-m -
48-hr ->-
30-day --
to-min -�-
- 3-hr
4-day
45-day -
15-min -+-
6-hr
7-day
60-day -
30-min -a-
12-hr
10-day
60-min -x-
24-hr -a-
20-claw �-
2 of4 2/12/2009 1:15 PM

Precipitation Frequency Data Server
http: //hdse.nws. noaa.gov/cgi-bin/hdsc/bui ldout.perl?type=pf&units...
c
42
40
38
36
34
32
30
20
26
24
22
20
10
16
14
12
t0
0
6
4
2
0
Partial duration based Point Precipitation Frequency Estimates - Versions 3
35.5955 N 76.4125 W 9 ft
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Thu Feb 12 13:10:51 2009
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(years)
1 w—
50
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lee
5
200 e-
10
509 —�
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1000
3 of4 2/12/2009 1:15 PM

®gin
NCDENR
#10Of W�TpN
i
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER 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.
IM P. RWEC70N FORMATION NJ
Project name Innsbrook Clubhouse and Fitness Center
Contact name Frank Wanko
Phone number
Date
Drainage area number
910-692-5616
November 1, 2008
Phase 1A DA 7
I11DESIGNI I N F,ORMAT.ION
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown Flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak Flow from the 10-yr storm
Where Does the Level Spreader Discharge 7
To a bioretenlion cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
74,115 ftz
31,002 ft2
0.42
0.55
0.935795455 cis
min
7.22 in/hr
6.756443182 cfs
N (Y or N)
N (Y or N)
N (Y or N)
To a Pond
It
It
6 It
2 %
N (Y or N) OK
sq fl
13 ft/cfs
(Y or N)
Y (Y or N)
(Y or N)
6.76 cfs
N (Y or N) A bypass device is not needed.
88 ft Level spreader length OK.
N (Y or N)
(Y or N) Do not complete this section of the worksheet.
Farm SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.3 Parts I. and II. Design Summary, page 1 of 4

Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
It Do not complete this section of the worksheet.
W It Do not complete this section of the worksheet.
y ft Do not complete this section of the worksheet.
Peak velocity in the channel during the 10-yr, 24-hr storm cfs Do not complete this section of the worksheet.
Channel lining material Do not complete this section of the worksheet.
• ur
M
v--v,
i R 1
0�— I I
-----------•
M
Form SW401-1-evel Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Pads I. and II. Design Summary, page 2 of 4

III: REQUIRED ITEMS CHECKLIST.` : {Y` "; " , _::. -r.r
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
1. Plans (1" - 50' or larger) of the entire site shoving:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High Flow bypass system,
- Maintenance access,
- Recorded drainage easement and public fight of way (ROW), and
- Boundaries of drainage easement.
FCM/ C- 5 2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Recorded drainage easement, and
- Design at ultimate build -out.
(� 10 it C) l 3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
ICU T. 5015 Qzf-f . A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
per„ +, 5. An assurance that the installed system will meet design specifications upon initial operation once the
ry� project is complete and the entire drainage area is stabilized.
mC (D 6. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
"LLOd 7. The supporting calculations.
4lA 0,44 .1 8. A copy of the signed and notarized inspection and maintenance (14M) agreement.
bN - 111tJ 9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 3 of 4

Level Spreader Supporting Calculations
Area - Phase
1A DA 7
Time of Concentration Calculations
Input
Length of Watershed
435 FT
Height of Watershed
7 FT
Output
Time of Concentration
Minutesl
4.12
Peak Inflow Calculations
Drainage Area
A
74,115 SF
1.70 Acres
Pre -development Impervious Area
0 SF
0.00 Acres
Post -development Impervious Area
31,002 SF
0.71 Acres

TA®awA
ENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER 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.
Project name
Contact name
Phone number
Dale
Drainage area number
a
Type of BMP
Drawdown flow from the BMP
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 in/hr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Frank Wanko
910-692-5616
November 1, 2008
Phase to DA 6
60,790
ftz
27,435
If
0,45
0.57
0.795461433
cis
min
7.22
inlhr
5.743231543
cfs
N (Y or N)
N (Y or N)
N (YorN)
vvenanu
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 6 it
Width of dense ground cover ft
Width of wooded vegetation it
Total width 6 It
Slope (from level lip to to top of bank) 2 %
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area
sq ft
Feet of level lip needed per cis
13
ft/cfs
Answer'Y' to one of the following;
Length based on the 1 in/hr storm?
(Y or N)
Length based on the 10-yr, 24-hr storm?
Y
(Y or N)
Length based on the BMP discharge rate?
(Y or N)
Design flow
5.74
cfs
Is a bypass device provided?
N
(Y or N) A bypass device is not needed.
Length of the level lip
75
ft Level spreader length OK.
Are level spreaders in series?
N
(Y or N)
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland? (Y or N) Do not complete this section of the worksheet.
Form SW401-Level Spreader, Fitter Stdp, Restored Ripe Han Buffer-Rev.3 Paris I. and II. Design Summary, page 1 of 4

Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
W
y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
M
W
i B 1
ft
ft
ft
cfs
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Parts I. and It Design Summary, page 2 :44

III.•REQUIRED ITEMS CHECKLIST,'','
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
r -3 1, Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
A� C' 2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Recorded drainage easement, and
- Design at ultimate build -out.
(� 10 t C)1 3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
Cow T, S0'A s LfA. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
Wow AArirr a^4-S 5. An assurance that the installed system will meet design specifications upon initial operation once the
/►I0 project is complete and the entire drainage area is stabilized.
YiJ C I o 6. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
4— 1`161 7. The supporting calculations.
(UJ A V&,� •l 6. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
(go N• 144J 9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 3 of 4

Level Spreader Supporting Calculations
Area - Phase
1A DA 6
Time of Concentration Calculations
Input
Length of Watershed
240 FT
Height of Watershed
6 FT
Output
Time of Concentration
Minutesl
2.20
Peak Inflow Calculations
Drainage
Area A
60,790 SF
1.40 Acres
Pre -development Impervious Area
0 SF
0.00 Acres
Post -development Impervious Area
27,435 SF
0.63 Acres

®�A Of WATE,
O
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER 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.
I1 P. ROJ ECTI IN FORMATION
Project name Innsbrook Clubhouse and Fitness Center
Contact name Frank Wanko
Phone number 910-692-5616
Date November 1, 2008
Drainage area number Phase 1A DA 5
II IDESIG NII N F,ORMATIO N
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown Flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
16,148
ftz
Impervious surface area
1,981
fiz
Percent impervious
0.12
Rational C coefficient
0.37
Peak flow from the 1 inlhr storm
0,137161616
cfs
Time of concentration
min
Rainfall intensity, 10-yr storm
7.22
inmr
Peak Flow from the 10-yr storm
0.990306869
cfs
Where Does the Level Spreader Discharge?
To a bioretenlion cell?
N
(Y or N)
To a wetland?
N
(Y or N)
To a filter strip or riparian buffer?
N
(Y or N)
Other (specify)
Overland
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
6
it
Width of dense ground cover
It
Width of wooded vegetation
It
Total width
6
ft
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y' to one of the following:
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
(Y or N) OK
sq it
13 fucfs
(Y or N)
Y (Y or N)
(Y or N)
0.99 cis
N (Y or N) A bypass device is not needed.
13 it Level spreader length OK.
N (Y or N)
(Y or N) Do not complete this section of the worksheet.
Form SW401-Level Spreader, Filler Strip, Restored Riparian Buffer-Rev.3 Pans I. and II. Design Summary, page 1 of 4

Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
M
1 B i
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
It Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
cfs Do not complete this section of the worksheet
Do not complete this section of the worksheet
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Fi Paris I. and II. Design Summary, page 2 of 4

JUL REQUIREDITEMS.CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
ii_" _C_'3
C-5
%IJ lotr✓((
Plans (1" - 50' or larger) of the entire site shoving:
Design at ultimate build -out,
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Forebay (if applicable),
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROV), and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Recorded drainage easement, and
- Design at ultimate build -out.
3. Section view of the level spreader IV =.20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
(]aJJ T� 3015 ?ziPA. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
(RAD Anted~ to+s 5. An assurance that the installed system will meet design specifications upon initial operation once the
U project is complete and the entire drainage area is stabilized.
910 r (0 6. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
(;RJ— Ay 0 7. The supporting calculations.
A Ysc4 *1 8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
aj Qt - —11tJ 9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 3 of 4

Level Spreader Supporting Calculations
Area - Phase
1A DA 5
Time of Concentration Calculations
Input
Length of Watershed
215 FT
Height of Watershed
5 FT
Output
Time of Concentration
Minutesl
2.08
Peak Inflow Calculations
Drainage Area
A
16,148 SF
0.37 Acres
Pre -development Impervious Area
0 SF
0.00 Acres
Post -development Impervious Area
1,981 SF
0.05 Acres

NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER 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.
Project name
Contact name
Phone number
Date
Drainage area number
910-692-5616
,Mar. 31, 2008
Phase to DA 3
and
11.1D ES IGNpN F,ORMATIO N
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown Flow from the BMP cfs
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
66,403
ft2
Impervious surface area
17,663
ft2
Percent impervious
0.27
Rational C coefficient
0.38
Peak Flow from the 1 inlhr storm
0.579273186
cfs
Time of concentration
min
Rainfall intensity, 10-yr storm
7.22
inlhr
Peak flow from the 10-yr storm
4.182352406
cis
Where Does the Level Spreader Discharge?
To a biorelention cell? N (Y or N)
To a wetland? N (Y or N)
To a filter strip or riparian buffer? N (Y or N)
Other (specify) To a Pond
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer "Y" to one of the following:
Length based on the 1 inlhr storm?
Length based on the 10-yr, 24-hr storm?
Length based on the BMP discharge rate?
Design Flow
Is a bypass device provided?
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
6 It
fl
It
6 It
2 %
N (Y or N) OK
sq ft
13 fticfs
(Y or N)
Y (Y or N)
(Y or N)
4.18 cfs
N (Y or N) A bypass device is not needed.
65 If Level spreader length OK.
N (Y or N)
(Y or N) Do not complete this section of the worksheet.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Pans I. and II. Design Summary, page 1 of 4

Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below)*
M
W
Peak velocity in the channel during the 10-yr, 24-hr storm
Channel lining material
i B i
Do not complete this section of the worksheet
Do not complete this section of the worksheet
ft
Do not complete this section
of the
worksheet.
ft
Do not complete this section
of the
worksheet.
It
Do not complete this section
of the
worksheet.
ft
Do not complete this section
of the
worksheet.
cfs
Do not complete this section
of the
worksheet.
Do not complete this section
of the
worksheet.
M
Form SW401-Level Spreader, Filter Strip, Restored Riparian Sufter-Rev.3 Parts I. and II. Design Summary, page 2 of 4

Ill.' REQUIRED ITEMS'CHECKCIST S ,' �
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Recorded drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
9J C- t5- 2. Plan details IV = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot lopo lines between the level lip and top of stream bank,
- Recorded drainage easement, and
- Design at ultimate build -out.
IJ
10 It C 11
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
�11
�J.1
T, S615 Zell-gk A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
AIL
Ayo-e p.+;o
5. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
/ry►�� �
LTJ a �
//
S (
6. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
t i
Alle J
7. The supporting calculations.
r Nam•+
8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
9. A copy of the deed restriction.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.3 Part III, page 3 of 4

Level Spreader Supporting Calculations
Area - Phase
1A DA 3
Time of Concentration Calculations
Input
Length of Watershed
480 FT
Height of Watershed
12 FT
Output
Time of Concentration
Minutes
3.75
Peak Inflow Calculations
Drainage
Area A
66,403 SF
1.52 Acres
Pre -development Impervious Area
0 SF
0.00 Acres
Post -development Impervious Area
17,663 SF
0.41 Acres

HOBBS, UPCHURCH & ASSOCIATES
CONSUL T/NG ENGLVEERS
Mi P.O. BOX 1737
300 SOUTH WEST BROAD STREET
SOUTHERN PINES, NORTH CAROLINA 28387
PHONE: [phone]
FAX: [phone]
To: NCDENR
943 Washington Square Mall
Washington, NC 27889
The Following Item(s) :
LETTER OF TRANSMITTAL.
Date: 2/13/2009 JJob No. BE0803
Ann. Samar Dum or, PE
Ref.: Innsbrook Clubhouse and Fitness Center
We are sending you
0 Attached
0 Under separate cover VIA
O Shop Drawings Prints O Samples
0 Copy of Letter O Change Order O
O Specifications
Copies
Date
Project No.
Description
2
Revised signed and sealed drawings
2
Revised si ncd and sealed calculations
I
Response letter for comments
These are Transmitted as Checked Below :
O For Approval I Approved as Submitted O Resubmit for Approval
For Your Use O Approved as Noted O Submit for Distribution
O As Requested O Returned for Corrections Return Corrected Prints
O For Review and Comment O
0 Prints Returned After Loan to Us tt
Remarks: In(Ir�ll,E PECD
rr 16 2a09
Copy To: Signed:
Frank Wanko, Project Designer

REQ flrJ2®
FEB 16 2009
lv,3
INNSBROOK CLUBHOUSE
AND FITNESS CENTER
BERTIE COUNTY, NORTH CAROLINA
BIORETENTION CELL AND
LEVEL SPREADER SUPPLEMENTS
�N CA
��o •�FESSI
T UP5"�
PREPARED BY:
HOBBS, UPCHURCH & ASSOCIATES, P.A.
300 S.W. BROAD STREET
SOUTHERN PINES, NC 28387
REVISED November, 2008

HOBBS, UPC//URCH & ASSOCIATES
COA'SULTLVC ENC/A'F.ERS
P.O. BOX 1737
300 SOUTH WEST BROAD STREET
SOUTHERN PINES. NORTH CAROLINA 28387
PHONE: [phone] G
FAX: [phone]
To: NCDENR
943 Washington Square Mall
Washington. NC 27889
LETTER OFTRANSMITTAL 1w,' , 4 ..,r9
Date: 3/11/2009 lJob, No. BE0903- ,
Ann. Samir Dum or
Ref: Innsbrook Clubhouse- e
We are sending you
Attached
o Under separate cover VIA
The Following Item(s) :
[� Shop Drawings O Prints Samples
[� Copy of Letter Change Order O
o Specifications
Copies
Date
Project No.
Description
2
Revised drawings
2
Revised Supplements and calculations
These are Transmitted as Checked Below :
O For Approval Approved as Submitted
O For Your Use O Approved as Noted
0 As Requested O Returned for Corrections
O For Review and Comment O
Remarks:
O Resubmit for Approval
O Submit for Distribution
O Return Corrected Prints
O Prints Returned After Loan to Us
Copy To: Signed: }s_,✓� Ul./'�
rank Wanko, Project Designer

1 11 Hobbs, Upchurch & Associates, P.A.
Consulting Engineers
300 S.W. Broad Street • Southern Pines, NC 28388
February 13,2009
NCDENR
943 Washington Square Mall
Washington, NC 27889
Attn: Samir Dumper, PE
Re: Innsbrook Clubhouse and Fitness Center
HUA .lob #BE0803
Dear Mr. Dumper,
The following is in response to comments made by your office for the above named project and our responses are as
follows:
L Please be advised that as of October 1, 2008 the New Stormivater Rules are in effect. The New Stormwater
Rules are listed in Session Law 2008-211, Senate Bill 1967. The new rules requirement for the high density
projects, is to store, control and treat the stormwater runofffrom all surfaces generated by 1.5" of rainfall
(for non -SA projects). Since the Bioretention basin 3 has already been approved, the additional storage to
be provided has to be calculated by using 1.5 "of rainftdl for only additional impervious area.
Rainfall has been calculated to 1.5".
2. The planting elevation for Bioretention Basin #3 is shown on plans as 19.0, while the Bioretention
Supplement reads 19.25. Please revise.
Coordinated numbers between plans, calculations and supplements after recalculating to E5".
3. The bottom elevation of Bioretention Basin #3 is .shown on plans as 16.00, while the Bioretention
Supplement reads 16.25. Please revise.
Coordinated numbers between plans, calculations and supplements after recalculating to 1.5".
4. The Design Volumes for Bioretention Basins #5, 6 and 7 as shown on the Bioretention Supplement are
different than what is .shown in the Calculations. Please revise.
Coordinated numbers between plans, calculations and supplements after recalculating to 1.5".
5. The Surface Area for Bioretention Basin #5 as drown on plans is 104sf., while the Supplement and the
Calculations shows 288sf. Please revise.
Coordinated numbers between plans, calculations and supplements after recalculating to 1.5".
6. The Temporary Pool elevation for Bioretention Basin #6 as shown on the Supplement is 26.0, while the
plans .show 25.75. Please revise.
The spreadsheet provided by NCDENR has no decimal points and therefore rounds the number.
7. Revise the Level Spreader Supplements as needed to reflect the above changes.
Complied.
8. Provide 2 sets of signed and sealed revised plan sheets and documents.
Complied. NE [r -r � IVv1`E0
V7y;_,
FEB 16 Z009
aaniir
Southern Pines, NC . Telephone [phone] Fax [phone] e email: [e-mail]
Myrtle Beach . Nags Head Raleigh . Charlotte . Beaufort

If you should have any questions or concerns during your review, please do not hesitate to contact this office.
Sit-�.re�' V' V�
HOBBS, UPCHURCH AND ASSOCIATES, P.A.
Prank D. Wanko
Project Designer
i0he080313001,esponse (o dmgfeb0vdac

Beverly Eaves Perdue, Governor
Dee Freeman, Secretary
r North Carolina Department of Environment and Natural Resources
1
� Coleen H. Sullins, Director
Division of Water Quality
January 22, 2009
Rial Corporation
Attn.: William C. Stillwagon, President
P.O. Box 248
Merry Hill, NC 27957
Subject::
Dear Mr. Stillwagon:
Stormwater Review SW7080320 Modification
Innsbrook Clubhouse and Fitness Center
Bertie County
This office received a Coastal Stormwater permit application and plans for the subject project on
December 12, 2008. A preliminary review of your project indicates that before a State Stormwater
permit can be issued the following additional information is needed:
1. Please be advised that as of October 1, 2008 the New Stormwater Rules are in effect. The
New Stormwater Rules are listed in Session Law 2008-211, Senate Bill 1967. The new rules
requirement for the high density projects, is to store, control and treat the stormwater runoff
from all surfaces generated by 1.5" of rainfall (for non -SA projects). Since the Bioretention
basin 3 has already been approved, the additional storage to be provided has to be
calculated by using 1.5" of rainfall for only additional impervious area.
2. The planting elevation for Bioretention Basin #3 is shown on plans as 19.0, while the
Bioretention Supplement reads 19.25. Please revise.
3. The bottom elevation of Bioretention Basin #3 is shown on plans as 16.00, while the
Bioretention Supplement reads 16.25. Please revise.
4. The Design Volumes for Bioretention Basins #5, 6 and 7 as shown on the Bioretention
Supplement area different than what is shown in the Calculations. Please revise.
5. The Surface Area for Bioretention Basin #5 as shown on plans is 104 s.f., while the
Supplement and the Calculations shows 288 s.f.. Please revise.
6. The Temporary Pool elevation for Bioretention basin #6 as shown on the Supplement is
26.0, while the plans show 25.75. Please revise.
7. Revise the Level Spreader Supplements as needed to reflect the above changes.
8. Provide 2 sets of signed and sealed revised plan sheets and documents.
The above requested information must be received in this office prior to February 22, 2009 or
your application will be returned as incomplete. The return of this project will necessitate resubmittal of
all required items including the application fee. If you need additional time to submit the required
information, please mail or fax your request for time extension to me at the Letterhead address and
include the application number on the request. The request must include justification for the amount of
additional time needed. The request will only be granted for justifiable delays that are unforeseen and
beyond the owner or consultant's control.
You should also be aware that the Stormwater Rules require that the permit be issued prior to
any development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North
Carolina General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day.
North Carolina Division of Water Quality Internet: www.newateraualitv.ore
943 Washington Square Mall Phone [phone]
Washington, NC 27889 Fax [phone]
NorthCarolina
Natumlly
An Equal Opportunity/Affirmative Action Employer— 50% Recycledll0°/ Post Consumer Paper

Please reference the Stormwater Project Number above on all correspondence. If you have
questions, please feel free to contact me at [phone].
Sincerely,
Samir Dumpor, PE
Environmental Engineer
Washington Regional Office
cc: Washington Regional Office
Frank Wanko, PE, Hobbs, Upchurch & Associates, P.A. (PO Box 1737, Southern Pines, NC
28388)

o� o
IV
VI.
STORMWATER SUBMITTAL REQUIREMENTS
WET DETENTION POND
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 pond.
B. Check the proposed pond design to make sure it meets or exceeds the minimum design
criteria for surface area, volume and drawdown.
What makes up a complete wet detention pond application package?
A. /Two sets of sealed, signed & dated layout & grading plans with appropriate details.
(Additional sets of plans may be requested for projects in certain counties)
B. Completed application with supplement(s), SWU-101, SW401-Wet Pond, and inspection and
maintenance agreements.
C.O/A-Deed restriction document, if applicable (for subdivisions & projects with out parcels)
? D. Sealed, signed & dated calculations.
z E. Estimated seasonal high water table elevation at all pond locations.
F. tJ/prChlorides test results must be provided if the project is within'/2 mile of SR waters (Phase II).
(This is only required to test out of SR water treatment requirements)
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.
Shell documents (for DWQ use only)
Permit shells: s:\wqs\stormwater\shells\highcompond
s:\wqs\stormwater\shells\highsubpond
s:\wqs\stormwater\shells\HDhybrid
Spreadsheet: s:\wqs\stormwater\excel spreadsheets\pond
Review Procedure
A. APPLICATION
V, /�. /An original signature is required. Photocopied signatures cannot be accepted.
V 2. V A completed wet detention pond supplement and a signed, dated and notarized wet
detention pond Inspection and Maintenance Agreement with an original signature.
The numbers 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.
V 5. Receiving stream name and classification. This is important because in the non -Phase
II counties, a wet pond cannot be used on a project that is within '/z mile.of and draining '
y// /to SA waters. For Phase.11, a wet pond is allowed within '/2 mile of SA waters.
6. V Section 111.6 is filled in -cannot lie left -blank. One column must be filled in for each
V/ t//proposed wet pond.
7. If the applicant is a corporation, partnership or LLC, Zook it up on the Secretary of State'
Corporations Database. Make sure corporation is spelled correctly (capitalizatiomand
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 ,marfager,.of a manager -managed LLC. Need
documentation to support if the Articles of Incorporatiom•do'not list the members or
managers of the LLC. If an' agent signs, then a letter of authorization is,needed from the, .
0 In' president, vice president, general partner, member•or,manager.,•,,
80/P(For subdivided projects, a signed and notarized deed restriction statement must be+
provided.

)„S'/�'/'We
Wet Detention Pond, cont.
B. CALCULATIONS
1.u�,tThe orifice is sized based on drawing down the calculated minimum volume in 2-5
days. The average head to use in the orifice equation is approximately one-third of
the distance between the permanent pool elevation (PPE) and the elevation of the
next available outlet above the permanent pool. The elevation of the next available
outlet must be either the elevation where the minimum volume is provided, or it can
be higher. The temporary pool elevation (TPE) to report on the supplement will be
the elevation of the next available outlet above the PPE. The temporary pool volume
(TPV) to report on the supplement is the volume between the specified PPE and the
TPE.
24/kFor Phase II projects that are within Y mile of and draining to SR waters, the
difference in runoff from the predevelopment and post -development conditions for
the 1 year 24 hour storm must be controlled and treated.
3. VFor Phase II projects, the discharge rate leaving the pond can be no more than the
pre -development discharge rate for the 1 year 24 hour storm.
4�/A-For Phase II projects draining to SA water, no discharge to surface waters may occur
from wet ponds. The discharge leaving the orifice must be effectively infiltrated prior to
50reaching surface waters.
Ar The average pond depth is the permanent pool volume divided by the permanent pool
surface area. The result must be between 3 ft. and 7.5 ft. Parts of the pond can be
deeper thhan 7.5 ft., but in no case can any part of the pond be less than 3 ft deep.
6.N If the 8r /u TSS chart is used a 30' vegetated filter must be provided at the outlet of the
pond. If the 90% TSS chart is used, no filter is required.
7. d�45se the correct SA/DA TSS chart from the BMP Manual noting that there are different
harts for different areas of the State.
8J 6quired surface area at permanent pool.
9. Provided surface area at permanent pool (Based on pond dimensions)
10�Required volume calculation based on 1.5" storm for Phase II projects' and 1" storm for
all others projects. `unless the project is Phase 11 and within V2 mile of and draining to
SR waters then the volume calculation must be based on difference between the pre
and post development conditions for the 1-yr 24-hr storm.
1 if*iable of elevations, areas, incremental volumes and accumulated volumes for overall
and and for forebay, to verify volumes provided.
12��,,�Forebay designed to hold 20% of the permanent pool volume. (Range of 18%-22%
zOK.)
13.✓ Non -erosive flow for 10 yr. storm in the vegetated filter, if using 85% TSS.
14. ✓The seasonal high water table must be at or below the proposed permanent pool
elevation to assure that the necessary volume will be available above the permanent
�� pool. ,
151q Rounding numbers off during the calculation process can result in deficiencies. Do not
round the numbers until you get to the final result.
16NAAn additional one foot must be excavated below the bottom elevation of the pond. The 1
foot sediment accumulation depth is not included in the average depth calculation.
-s407"
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Wet Detention Pond, cont.
C. PLANS- Due to storage space constraints, plan sheets should be kept to a minimum. For
small commercial single wet pond 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. DevelopmenUProject Name
V 2. Y Engineer name and firm.
3. ✓ Legend
4. t/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.
t/ 6. V Scale- standard engineering scale, no off-the-wall stuff.
7. Date
8. VV Revision number and date, if applicable.
9. VOriginal contours, proposed contours, spot elevations, finished floor elevations, pipe
inverts, swale inverts, etc.
10. Existing drainage (piping, swales, ditches, ponds, etc.), including off -site. Include a map
delineating the offsite drainage areas.
11" 'operty/Project boundary lines, bearing & distances.
12fd Rdlean High Water Line or Normal High Water Line, if applicable.
13.N The permanent pool elevation must be above the SHWT and above the lowest
elevation of adjacent wetlands. Evaluate the need for a liner and/or berm/slurry wall to
/ prevent dewatering the wetland.
V/ 140/A-Drainage easement widths, pipe sizes and swale inverts are provided.
15.v/Wetlands delineated, or a note on the plans that none exist. Get 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. Wet ponds may not be located
✓✓/ in wetlands unless a permit to fill those wetlands has been obtained.
16.VDetails for the roads, parking, cul-de-sacs, including sidewalk width, radii, dimensions &
slopes.
171VXpartment / Condo development- Provide a typical building footprint with dimensions
/ /and note all concrete and wood deck areas.
18r/ The drainage area for each wet pond is clearly delineated and numbered to match up to
e calculations and supplement. Drainage area delineation is best done as a separate
plan sheet.
19V A pond section detail to include the forebay, a 10 foot wide vegetated shelf, pertinent
elevations for the bottom, permanent pool, temporary pool, and SHWT, 3:1 slopes
above the permanent pool, and the weir elevation between the main pond and the
orebay.
20Phe 10 vegetated shelf extends 6" below and 6" above the permanent pool elevation.
21 n outlet structure detail showing a trash rack with 56" square openings, the necessary
orifice invert elevation (i.e., the permanent pool), orifice size and temporary pool
22u�tlevation.
imensions for each line and arc formed by the permanent pool contour.
23*Where the 85% TSS chart was used, a 30 ft. vegetated filter strip is required to be
shown on the plans & detailed (elevations, inverts, slopes, and flow spreader
/Lmechanism). Please note that the filter strip is not a ditch.
2,� A forebay is provided for each inlet and located so as to prevent short-circuiting.
25/khe pond must have a minimum 1.5:1 length to width ratio and a minimum 3:1 flow path
length. Artificial "baffles" of timber, vinyl, or earth can be used to create a longer flow
path. The top elevation of the baffle should be set at the temporary pool elevation or
26. A Vegetation plan is specified for the pond, including slopes. Wetlands species are
Ii 4ed for planting on the 10:1 shelf. Weeping Love Grass is not suitable as a permanent
egetated cover for pond slopes.
27. All roof drainage must be directed to the pond. Show the roof drain collection lines on
the plan. This is necessary for projects where the buildings back up the property lines
where roof drainage may leave the site prior to going through the pond.

FJ4
11obhv, Upchureh & : Lvsaeiafev,
10 Year
SedimentTra Not +e `+"r Dale
f ]+ , , f rR1f^ l .Nov., 2008
tit Name HUA Project No.
Innsbrook Clubhouse Villas BF.11803
Calculated By
out FD W
Merry [fill, Checked By
North Carolina DlU
Design a Temporary Sediment Trap for erosion control
Determine the weir length, capacity & freeboard of the sediment trap
Qp: Use the calculated Time of Concentration and the Rational Method to determine
the peak inflow from the design storm.
Input Output
L = 350 ft.
H,= 6 ft. Assume T,= 3.40 minutes
Calculating 'C'
Turf % Pave % C
0.73 0.27 0.39
Calculating'Op
C I A O = 4.73 cfs
0.39 8.00 1.52
SA: Determine minimum Surface Area based upon 10YR Storm
C I A
0,39 8.00 1.52 O„= 4.73 cfs
X 435
Minimum Surface Area
2058 sf
Lw: Use Trial & Error with Weir Length (Lw) & Driving Head (H) to make Ow >= Do
Input
Output
Cw = 3.00
Lw = 6.00 ft.
Op =
4.73
cfs
H = 0.41 ft.
Ow =
4.73
cfs
Freeboard =
0,59
ft.
Input
A.distub = 1.25
Volume 3600 cf/acre
Size Calculations: S-Trap.H 4.00 S-Trap.W 32.00
S-Trap.D 3.00 S-Trap.L 64.00
Side Sopes 2
Cw= Weir Coefficient
Lw= Weir Length, (ft.)
H = Driving Head, (h.)
Op = Peak Inflow, (cfs)
Ow = Peak Discharge (cfs)
A.disturb = Disturbed Area, (acres)
Freeboard = Freeboard of Weir, (ft.)
S-Trap.H = Sediment Trap Height, (ft.)
S-Trap.D = Sediment Trap Depth. (ft.)
Output
Required Volume = 4500 cf
SA Top Trap 2048
SA Bottom Trap 1040
Ave. Area of Pond 1544
L = Watershed Hydraulic Length, (ft)
Hv = Watershed Vertical Relief. (ft)
A = Watershed Area, (acres)
C = Rational Runoff Coefficient
Tc = Time of Concentration
I = Rainfall Intensity, (indhr.)
S-Trap.W = Sediment Trap Width, (ft.)
S-Trap.L = Sediment Trap Length, (ft.)

Nov., 21168
FW
Hobbs, Hp<hurrh & A
0
P.A.
Name
Innshrook Clubhouse Villas
Merry Hill,
North Carolina
Design a Temporary Sediment Trap for erosion control
Determine the weir length, capacity & freeboard of the sediment trap
Gip: Use the calculated Time of Concentration and the Rational Method to determine
the peak inflow from the design storm.
L = 215 ft.
H, = 5 ft.
Calculating'C'
Turf % Pave % C
0.99 0.01 0.21
Calculating 'Op
C I A
021 8.00 0.37
SA: Determine minimum Surface Area based upon 10YR Storm
C I A
0.21 8.00 0.37
HUA Project No.
BE081D
Calculated By
F nN'
Checked By
1)fu
Assume T, = 2.08 minutes
Solution - Lw: Use Trial & Error with Weir Length (Lw) & Driving Head (H) to make Ow >= Op
Qa = 0.61 cfs
Op= 0.61 cfs
X 435
Minimum Surface Area
267 at
Input
Output
Cw =
3.00
Lw =
4.00 ft.
Op =
0.61
cfs
H=
0.15 ft.
Ow=
0.70
cfs
Freeboard =
0.85
ft.
Dimensions:
Input
Output
A.dislub =
0.37
Volume
3600 cf/acre
Required Volume =
1332
cf
Size Calculations: S-Trap.H 4.00 S-Trap.W 19.00 SA Top Trap 722
S-Trap.D 3.00 S-Trap.L 38.00 SA Bottom Trap 182
Side Sopes 2 Ave. Area of Pond 452
Terminology: Cw = Weir Coefficient
L = Watershed Hydraulic Length, (ft)
Lw= Weir Length, (ft.)
Hv= Watershed Vertical Relief, (ft)
H = Driving Head, (ft.)
A = Watershed Area, (acres)
Op = Peak Inflow, (cfs)
C = Rational Runoff Coefficient
Ow = Peak Discharqe, (cfs)
Tc = Time of Concentration
A.dislurb = Disturbed Area, (acres)
I = Rainfall Intensity, (in.lhr.)
Freeboard = Freeboard of Weir, (ft.)
S-Trap.H = Sediment Trap Height, (ft.) S-Trap.W = Sediment Trap Width, (ft.)
S-Trap.D = Sediment Trap Depth, (ft.) S-Trap.L = Sediment Trap Length, (ft.)

j Objective:
Solution - Qp:
ISolution - SA:
Sediment Tra No 3 :; r Data
yr�arn ar P i �! "r Nov., 20118
Project Name HUA Project No,
Innsbruck Clubhouse Villas HF0803
Calculated By
P.A. Location FUW
hers Nlerry Ilill, Checked By
North Carolina Il'I'U
10 Year
Design a Temporary Sediment Trap for erosion control
Determine the weir length, capacity & freeboard of the sediment trap
Use the calculated Time of Concentration and the Rational Method to determine
the peak inflow from the design storm.
L = 240 ft,
H, = 6 ft.
Calculating 'C'
Turf % Pave %
C
0.56 0.44
0.51
Calculating'Q,'
C I
A
0.51 8.00
1,40
Determine minimum Surface Area based upon 10YR Storm
C I A
0.51 8.00 1.40
Assume T-= 2.20 minutes
Solution - Lw: Use Trial & Error with Weir Length (Lw) & Driving Head (H) to make Ow >= Op
Q = 5.69 cfs
Qo = 5.69 cfs
X 435
Minimum Surface Area
2475 sf
Input
Output
Cw = 3.00
Lw= 6,00 ft.
Qo=
5.69 cfs
H= 0A7 ft.
Qw=
5.80 cfs
Freeboard =
0.53 ft.
Input Output
A.distub = 1.40
Volume 3600 cf/acre Required Volume = 5040 cf
Size Calculations: S-Trap.H 4,50 S-Trap,W 32.00 SA Top Trap 2048
S-Trati 3.50 S-Trap.L 64.00 SA Bottom Trap 900
Side Sopes 2 Ave. Area of Pond 1474
Terminology: Cw= Weir Coefficient
Lw= Weir Length, (ft.)
H = Driving Head, (ft.)
Op = Peak Inflow, (cfs)
Ow = Peak Discharqe, (cfs)
A.disturb = Disturbed Area, (acres)
Freeboard = Freeboard of Weir, (ft.)
S-Trap.H = Sediment Trap Height, (ft.)
S-Trap.D = Sediment Trap Depth, (ft.)
L = Watershed Hydraulic Length, (ft)
Hv = Watershed Vertical Relief, (ft)
A = Watershed Area. (acres)
C = Rational Runoff Coefficient
To = Time of Concentration
I = Rainfall Intensity, (in./hr.)
S-Trap.W = Sediment Trap Width, (ft.)
S-Trap.L = Sediment Trap Length, (ft.)

v
Y
l F Y `•. _ .\ f. Date
1 Sediment Tra Noll
: u -. ,r, ve,., zxnx
FJ4Project Name HUA Project No.
Innsbrook Clubhouse Villas BEOxe3
Calculated By
/lrrnhs, C;peluurh & : t.ssneiates, P.A. location PDR'
Con.adting Engineers Nferrc Hill, Chocked By
North Carolim) 1)1'U
Design a Temporary Sediment Trap for erosion control
Determine the weir length, capacity & freeboard of the sediment trap
Qp: Use the calculated Time of Concentration and the Rational Method to determine
the peak inflow from the design storm.
L = 435 ft,
H = 7 ft.
Calculating 'C'
Turf % Pave % C
0,60 0.40 0.48
Calculating 'Op
C I A
0.48 8.00 1.70
SA: Determine minimum Surface Area based upon 10VR Storm
C I A
0.48 8.00 1,70
Assume T.= 4,12 minutes
Lw: Use Trial & Error with Weir Length (Lw) & Driving Head (H) to make Ow -= Op
O = 6.53 cfs
Output
Op = 6.53 cfs
X 435
Minimum Surface Area
2840 at
Cw = 3.00
Lev = 6.00 ft.
Oo =
6.53
cfs
H = 0.51 ft.
Ow =
6.56
cfs
Freeboard =
0,49
ft.
Dimensions: Input Output
A.distub= 1.50
Volume 3600 cf/acre Required Volume = 5400 cf
Size Calculations: S-Trap.H 5.00 S-Trap.W 32.00 SA Top Trap 2048
S-Trap.D 4.00 S-Trap.L 64.00 SA Bottom Trap 768
Side Sopes 2 Ave. Area of Pond 1408
Cw= Weir Coefficient
Lw = Weir Length, (ft.)
H = Driving Head, (ft.)
Dp = Peak Inflow, (cfs)
ON = Peak Discharge, (cfs)
A.disturb = Disturbed Area, (acres)
Freeboard = Freeboard of Weir, (ft.)
S-Trap.H = Sediment Trap Height, (ft.)
S-Trap.D = Sediment Trap Depth. (ft.)
L = Watershed Hydraulic Length, (ft)
Hv = Watershed Vertical Relief, (ft)
A = Watershed Area. (acres)
C = Rational Runoff Coefficient
Tc = Time of Concentration
I = Rainfall Intensity, (in./hr.)
S-Trap.W = Sediment Trap Width, (ft.)
S-Trap.L = Sediment Trap Length, (ft.)

It & Associates, P.A.
Consulting Engineers
PROJECT NAME PROJECT NO
Innsbrook Clubhouse Villas BE0803
LOCATION BY
Merry Hill, North Carolina FDW
At Temporary Clubhouse CHECKED BY
At Bioretention Phase 1A CA 3 IDTU
' 1 i.i RtiL'
I:
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial & Error to make the flow depth, d, result with 0 = 010
DESIGN STORM: 10-YEAR 010 = CIA
010:
5.1 cfs
NOTE:
The velocity of the water entering a maintained
veg Swale must be <5 f /S
MAXIMUM
d =
0,610 FT
A = 2.17 FT-2
Slope Condit/on
P = 6.72 FT
n =
0.030 (DEHNR, 1993)
R = 0.32
B=
0.5 FT
0= 5.1 CFS
Z =
5 :1
V= 2.33 FPS
S =
0,0100 FT/FT
W = 6.60 FT
LINING TYPE:
LINING
EM
S&M SEED & MULCH
Shear Stress:
T=YDS
EM EXCELSIOR MAT
T=
0.38 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
FINISHED DIMENSIONS:
REFERENCES:
0= Peak Discharge, (CFS)
d = Maximum Depth of Water, (FT)
V = Trial Velocity, (FPS)
n = Manning's 'n" Coefficient
B = Bottom Width of Channel, (FT)
Z = Side Slope of Channel (Z:1)
A = Crass -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
R = Hydraulic Radius, (FT)
S = Slope of the Channel, (FT/FT)
0 = Trial Discharge, (CFS)
W = Top Width of Water in Channel,
T= Shear Stress in Lb1SF
Y= W t of Water (62.4 Ib/cf)
D= Depth Of Flow
S= Slope Of Swale
Min: De t11',, "
0.61 FT
�. Bottom Width-•-
0.5 FT
Max: Sloe's:;
1.00%
Side Slo es` y-
5 : 1
(DEHNR, 1988; DEHNR, 1993)

FJ4
1G DATE
Mar. 2008
PROJECT NAME PROJECT NO
Innsbrook Clubhouse Villas BE0803
Hobbs, Upchurch & Associates, P.A. LOCATION BY
Consulting Engineers Merry Hill, North Carolina FDW
At Villas CHECKED By
At Bioretention Phase 1A DA 5 DTU
.:_P "'� r-� t71.
SOLUTIONS: Determine the MAXIMUM velocity, V,through the TYPICAL SECTION
Use Trial & Error to make the Bow depth, d, result with 0 = 010
DESIGN STORM: 10-YEAR 010 = CIA
010: 0.7 cfs
The velocity of the water entering a maintained
veg Swale must be <5 ft/s
fUM
d = 0,300 FT
A= 0.45 FT"2
Condition
P = 3.06 FT
n = 0.030 (DEHNR, 1993)
R = 0.15
B= 0 FT
0= 0.8 CFS
Z = 5 :1
V= 1.83 FPS
S = 0.0175 FT/FT
W = 3.00 FT
3 TYPE :
LINING EM
S&M SEED & MULCH
Stress:
T=YDS
EM EXCELSIOR MAT
T= 0.33 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
NOLOGY:
0= Peak Discharge, (CFS)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
d = Maximum Depth of Water, (FT)
R = Hydraulic Radius, (FT)
V = Trial Velocity, (FPS)
S = Slope of the Channel, (FT/FT)
n = Manning's 'n" Coefficient
0 = Trial Discharge, (CFS)
B = Bottom Width of Channel, (FT)
W = Top Width of Water in Channel,
Z = Side Slope of Channel (Z:1)
T= Shear Stress in Lb/SF
Y= Wt of Water(62.4 lb/cf)
D= Depth Of Flow
S= Slope Of Swale
FINISHED DIMENSIONS:
I
+'Min. Dethe-c,
0.30 FT
Bottom Width:.•^
0 FT
M". Si op e,.
1.75%
. side Slopes!
5 : 1
Uning'4T.- 't
EM
(DEHNR. 1988: DEHNR, 1993)

DATE
141
Mar., 2008
PROJECT NO
PROJECT NAME
Innsbrook Clubhouse Villas
BE0803
LOCATION
Merry Hill, North Carolina
BY
FDW
11ohh5, Upchurch & ;1.ssociOte.s, P.A.
Consulting Engineers
At Villas
CHECKED BY
At Sioretention Phase to DA 6
DTU
)INS:
Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial 8 Error to make the flow depth, d, result with 0 = 010
STORM:
10-YEAR 010=CIA
010:
0.6 cis
The velocity of the water entering a maintained veg swale must be <5 ft/s
IUM
d =
0.300 FT
A= 0.45 FTA2
Condition
P = 3.06 FT
n =
0.030 (DEHNR, 1993)
R = 0.15
B=
0 FT
0= 0.8 CFS
Z =
5 :1
V= 1.83 FPS
S =
0,0175 FT/FT
W = 3.00 FT
TYPE :
LINING
EM
S&M SEED & MULCH
Stress:
T=YDS
EM EXCELSIOR MAT
T=
0.33 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
TERMINOLOGY:
DIMENSIONS:
0= Peak Discharge, (CFS)
d = Maximum Depth of Water, (FT)
V = Trial Velocity, (FPS)
n = Manning's 'n" Coefficient
B = Bottom Width of Channel, (FT)
Z = Side Slope of Channel (Z:1)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
R = Hydraulic Radius, (FT)
S = Slope of the Channel, (FT/FT)
0 = Trial Discharge, (CFS)
W = Top Width of Water in Channel,
T= Shear Stress in Lb/SF
Y= Wt of Water (62.4 lbfcf)
D= Depth Of Flow
S= Slope Of Swale
Min. De thi,_'
0.30 FT
'a BottoanwiAth'i *
0 FT
Mai., slo,pe
1.75%
`-Side Slo es'� "'. �.
5:1
Linin
EM
(DEHNR, 1988: DEHNR. 1993)

DATE
Fj4
Mar., 2008
PROJECT NAME
PROJECT NO
Innsbrook Clubhouse Villas
BE0803
LOCATION
Merry Hill, North Carolina
BY
FDW
Hobbs, L(tchurch &Associates, P.A.
Consulting Engineecv
At Villas
CHECKED BY
qi" 1 N r i'f..r N�'. .,'y i er ih k. �r.�kf I°PT 'L..,a rt .� t rr p'.��'•";:
1
,� ,.:. '.p• (. �. (, '•'"� ,.
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial & Error to make the flow depth, d, result with O = Q10
DESIGN STORM: 10-YEAR DID =CIA
Q10:
2.3 cfs
NOTE:
The velocity of the water entering a maintained
veg swale must be <5 ft/s
MAXIMUM
d =
0.500 FT
A = 1.25 FTA2
Slope Condition
P = 5.10 FT
n =
0.030 (DEHNR, 1993)
R = 0.25
B=
0 FT
0= 2.4 CFS
Z =
5 :1
V= 1.95 FPS
S =
0,0100 FT/FT
W = 5.00 FT
LINING TYPE:
LINING
EM
S&M SEED & MULCH
Shear Stress:
T=YDS
EM EXCELSIOR MAT
T=
0.31 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
FINISHED DIMENSIONS:
REFERENCES
0= Peak Discharge, (CFS)
d = Maximum Depth of Water, (FT)
V = Trial Velocity, (FPS)
n = Manning's "n" Coefficient
B = Bottom Width of Channel, (FT)
Z = Side Slope of Channel (Z:1)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
R = Hydraulic Radius, (FT)
S = Slope of the Channel, (FT/FT)
O = Trial Discharge, (CFS)
W = Top Width of Water in Channel,
T= Shear Stress in Lb/SF
Y= Wl of Water (62.4 Ib/cf)
D= Depth Of Flow
S= Slope Of Swale
Min. De th!lk d P
0.50 FT
0 FT
Slo . ,',' S
1.00%
Side Slo�sI-r-.?
5:1
- Unin y ' '
EM
(DEHNR. 1988; DEHNR, 1993)

SIP DATE
Mar., 2008
PROJECT NAME PROJECT NO
Innsbrook Clubhouse Villas BE0803
%fobhs, Upchurch & Associates. P.A. LOCATION BY
Consulting Engineers Merry Hill, North Carolina FDW
Al Villas CHECKED BY
r
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial 8 Error to make the flow depth, d, result with 0 = 010
DESIGN STORM: 10-YEAR 010 = CIA
010: 0.4 cfs
NOTE:
The velocity of the water entering a maintained
veg Swale must be <5 ft/s
MAXIMUM
d = 0.250 FT
A = 0.31 FT"2
Slope Condition
P = 2.55 FT
n = 0.030 (DEHNR, 1993)
R = 0.12
B= OFT
0= 0.4 CFS
Z = 5 :1
V= 1.23 FPS
S = 00100 FT/FT
W = 2.50 FT
LINING TYPE:
LINING EM
SSM SEED & MULCH
Shear Stress:
T=YDS
EM EXCELSIOR MAT
T= 0.16 LbISF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
TERMINOLOGY:
0= Peak Discharge, (CFS)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
d = Maximum Depth of Water, (FT)
R = Hydraulic Radius, (FT)
V = Trial Velocity, (FPS)
S = Slope of the Channel, (FT/FT)
n = Manning's 'n" Coefficient
O = Trial Discharge, (CFS)
B = Bottom Width of Channel, (FT)
W = Top Width of Water in Channel,
Z = Side Slope of Channel (Z:1)
T= Shear Stress in Lb1SF
Y= Wt of Water (62.41b/cf)
D= Depth Of Flow
S= Slope Of Swale
FINISHED DIMENSIONS:
'. Min: Depth. :;
0.25 FT
' Bottom Width$;`
0 FT
Max. 310
1.00%.
_. �31t1a Sio ,
5 : 1
' :: Ahriingr}' ` I
EM
(DEHNR, 1968: DEHNR, 1993)

DATE
Mar., 2008
NO PROJECT NAME PROJECT NO
Innsbrook Clubhouse Villas BE0803
Hobbs, Upchurch & Associates, P.A. LOCATION BY
Consulting Engineers Merry Hill, North Carolina FDW
At Villas CHECKED BY
AI Bioretention Phase 1 A DA 6 DTU
}',i n _'t k�. .P-r r t r tI'v`. tv i ay 'fir':•% r
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial & Error to make the flow depth, d, result with 0 = 010
DESIGN STORM: 10-YEAR 010 = CIA
010: 0.3 cfs
(NOTE:
The velocity of the water entering a maintained
veg Swale must be <5 fVs
MAXIMUM
d = 0.250 FT
A = 0.31 FT-2
Slope Condition
P = 2.55 FT
n = 0.030 (DEHNR, 1993)
R = 0.12
B= 0 FT
0= 0.4 CPS
Z = 5 :1
V= 1.23 FPS
S = 0,0100 FT/FT
W = 2.50 FT
LINING TYPE :
LINING EM
S&M SEED & MULCH
Shear Stress:
T=YDS
EM EXCELSIOR MAT
T= 0.16 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
TERMINOLOGY:
Q= Peak Discharge, (CPS)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
d = Maximum Depth of Water, (FT)
R = Hydraulic Radius, (FT)
V = Trial Velocity, (FPS)
S = Slope of the Channel, (FT/FT)
n = Manning's 'n" Coefficient
Q = Trial Discharge, (CFS)
B = Bottom Width of Channel, (FT)
W = Top Width of Water in Channel,
Z = Side Slope of Channel (Z:1)
T= Shear Stress in LbISF
Y= Wt of Water (62.4 Ib/cf)
D= Depth Of Flow
S= Slope Of Swale
DIMENSIONS:
Min: De thy" r
0.25 FT
Bottom'.Width,",
0 FT
Slo ...
1.00%
-Side Sloe es'
5 :1
- Lining;')
EM
(DEHNR, 1988: DEHNR. 1993)

,I i
1i
DATE
I
141
Mar., 2008
PROJECT NO
PROJECT NAME
Innsbrook Clubhouse Villas
BE0803
Ilobb.c, Upchurch & Associates. A.A.
LOCATION
Merry Hill, North Carolina
BY
FDW
Cnnaulling Erigineers
Al Villas
CHECKED BY
At Bioretention Phaser 1A DA 7
IDTU
i ll� !.
1✓.r � - Ij� r.a \'It L-d.i£��7 Y'3; rY, 2ra-.}Y r 1'�-:
1
W �Yt L{':•
SOLUTIONS:
Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial 8 Error to make the Flow depth, d, result with Q = Q10
DESIGN STORM:
10-YEAR 010 = CIA
Q70:
4.0 oft;
NOTE:
The velocity of the water entering a maintained
veg swale must be <5 fills
MAXIMUM
d =
0.600 FT
A = 1.80 FTA2
Slope Condition
P = 6.12 FT
n =
0.030 (DEHNR, 1993)
R = 0.29
8=
0 FT
0= 4.0 CFS
Z =
5 :1
V= 2.20 FPS
S =
0.0100 FT/FT
W = 6.00 FT
LINING TYPE:
LINING
EM
S&M SEED 8 MULCH
Shear Stress:
T=YOS
EM EXCELSIOR MAT
T=
0.37 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,8,1,2)
RM REVETMENT
DIMENSIONS:
Q= Peak Discharge, (CFS)
d = Maximum Depth of Water, (FT)
V = Trial Velocity, (FPS)
n = Manning's "n" Coefficient
8 = Bottom Width of Channel, (FT)
Z = Side Slope of Channel (Z:1)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
R = Hydraulic Radius, (FT)
S = Slope of the Channel, (FT/FT)
Q = Trial Discharge, (CFS)
W = Top Width of Water in Channel,
T= Shear Stress in Lb/SF
Y= Wt of Water (62.41b/cf)
D= Depth Of Flow
S= Slope Of Swale
C Min. Depth
0.60 FT
...` Bottom Width-"
0 FT
"irMex. Slope,
1.00%
."Side Slo esi'.`
5:1
G` Lining.'.,
EM
(DEHNR. 1988: DEHNR, 1993)

DATE
` ii, ! Mar. 2008
PROJECT NAME PROJECT NO
IN Innsbrook Clubhouse Villas BE0803
Hobbs, Upchurch it Associates, P.A. LOCATION BY
Consulting Engineers Merry HIII, North Carolina FDW
At Villas CHECKED BY
At Bioretention Phase 1A DA 7 DTU
r�}yT ig4 I t11,
y��r.
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial 8 Error to make the flow depth, d, result with Q = Q10
DESIGN STORM: 10-YEAR Q10=CIA
010: 1.9 cis
The velocity of the water entering a maintained
veg swale must be <5 ftis
hum
d = 0.460 FT
A = 1.06 FT"2
Condition
P = 4.69 FT
n = 0.030 (DEHNR, 1993)
R = 0.23
B = 0 FT
O = 1.9 CFS
Z = 5 :1
V= 1.84 FPS
S = 0,0100 FT/FT
W = 4.60 FT
TYPE :
LINING EM
S8M SEED 8 MULCH
Stress:
T=YDS
EM EXCELSIOR MAT
T= 0.29 LbISF
SM SYNTHETIC MAT
RR RIPRAP (A,B,1,2)
RM REVETMENT
NOLOGY:
Q= Peak Discharge, (CFS)
A = Cross -Sectional Area of Flow,
P = Wetted Perimeter of the Flow, (FT)
d = Maximum Depth of Water, (FT)
R = Hydraulic Radius, (FT)
V = Trial Velocity, (FPS)
S = Slope of the Channel, (FT/FT)
n = Manning's "n" Coefficient
Q = Trial Discharge, (CFS)
B = Bottom Width of Channel, (FT)
W = Tap Width of Water in Channel,
Z = Side Slope of Channel (Z:1)
T= Shear Stress in Lb/SF
Y= Wtof Water(62.4 lb/cf)
D= Depth Of Flow
S= Slope Of Swale
DIMENSIONS:
Min. Depth_;?_
0.46 FT
bottom viidtli`r .'
O FT
Max, Slopti
1.00%
. i .. .,. .
." Side Slo es -7_
5 : 1
Linini .
EM
(DEHNR, 1988, DEHNR, 1993)

r
• r r '
DATE
PJ4
''
Mar., 2008
PROJECT NO
PROJECT NAME
Innsbrook Clubhouse Villas
SE0803
Hohbs, Upchurch & .4s.voCInte.Y, P.A.
LOCATION
Merry Hill, North Carolina
BY
FDW
Consulting Fngineers
At Villas At Bioretention
CHECKED BY
Phase to DA Driving Range
DTU
�1 XC t..• y
�i( Yf. J ' } :wiY,� f •! 0
/ F � CJ
{
! F 1'- lid
SOLUTIONS: Determine the MAXIMUM velocity, V, through the TYPICAL SECTION
Use Trial 8 Error to make the flow depth, d, result with 0 = 010
DESIGN STORM: 10-YEAR DID = CIA
010: 5.4 cfs
NOTE:
The velocity of the water entering a maintained veg Swale must be <5 f /s
MAXIMUM
d = 0.450 FT
A = 1,91 FT^2
Slope Condition
P = 6.59 FT
n = 0.030 (DEHNR, 1993)
R = 0.29
B = 2 FT
O = 5.7 CFS
Z = 5 :1
V= 2.96 FPS
S = 0.0185 FT/FT
W = 6.50 FT
LINING TYPE:
LINING EM
S&M SEED 8 MULCH
Shear Stress:
T=YDS
EM EXCELSIOR MAT
T= 0.52 Lb/SF
SM SYNTHETIC MAT
RR RIPRAP (A,8,1,2)
RM REVETMENT
TERMINOLOGY:
0= Peak Discharge, (CFS)
A = Cross -Sectional Area of Flow,
P = Welled Perimeter of the Flow, (FT)
d = Maximum Depth of Water, (FT)
R = Hydraulic Radius, (FT)
V = Trial Velocity, (FPS)
S = Slope of the Channel, (FT/FT)
n = Manning's "n" Coefficient
0 = Trial Discharge, (CFS)
B = Bottom Width of Channel, (FT)
W = Top Width of Water in Channel,
Z = Side Slope of Channel (Z.1)
T= Shear Stress in Lb/SF
Y= Wt of Water (62.4 Ib/cf)
D= Depth Of Flow
S= Slope Of Swale
FINISHED DIMENSIONS:
�:.
0.45 FT
' Bottom Width: 1"
2 FT
;" Mai. Ship
1.85%
Side Sloes_-,:
5:1
"" Linin ?:':'''
EM
REFERENCES: (DEHNR, 1988: DEHNR 1993)

Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
1 Immediately after the bioretention cell is established, the plants will be watered twice
weekly if needed until the plants become established (commonly six weeks).
2 Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
3 Heavy equipment will NEVER be driven over the bioretention cell.
4 Special care will be taken to prevent sediment from entering the bioretention cell.
5 Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be available
upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
fhe entire BMP
Trash/debris is present,
Remove the trash/debris.
fhe perimeter of the
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
hioretention cell
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or otherwise
Replace the pipe.
damaged (if applicable).
Erosion is occurring in the swale
Regrade the swale if necessary to
(if applicable).
smooth it over and provide erosion
control devices such as reinforced turf
matting or riprap to avoid future
problems with erosion.
Stone verge is clogged or
Remove sediment and clogged stone
covered in sediment (if
and replace with clean stone.
applicable).
DEC 1.2 2008

B1IP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing pretreatment
Regrade if necessary to route all flow to
area and/or gullies have formed.
the pretreatment area. Restabilize the
area after grading.
Sediment has accumulated to a
Search for the source of the sediment
depth greater than three inches.
and remedy the problem if possible.
Remove the sediment and restabilize the
pretreatment area.
Erosion has occurred.
Provide additional erosion protection
such as reinforced turf matting or riprap
if needed to prevent future erosion
problems.
Needs are present.
Remove the weeds, preferably by hand.
The bioretention cell:
Best professional practices show
Prune according to best professional
vegetation
that pruning is needed to
practices.
maintain optimal plant health.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application to
establish the ground cover if a soil test
indicates it is necessary.
Tree stakes/wires are present six
Remove tree stake/wires (which can kill
months after planting.
the tree if not removed).
The bioretention cell: soils
Mulch is breaking down or has
Spot mulch if there are only random
and mulch
floated away,
void areas. Replace whole mulch layer
if necessary. Remove the remaining
much and replace with triple shredded
hard wood mulch at a maximum depth
of three inches.
Soils and/or mulch are clogged
Determine the extent of the clogging -
with sediment.
remove and replace either just the top
layers or the entire media as needed.
Dispose of the spoil in an appropriate
off -site location. Use triple shredded
hard wood mulch at a maximum depth
of three inches. Search for the source of
the sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy metals
recommended per the soil test and toxic
have accumulated in the soil
soils shall be removed, disposed of
media.
properly and replaced with new planting
media.

BINIP element:
Potentialproblems:
]low I will remediate theproblem:
The underdrain system (if
Clogging has occurred.
Wash out the underdrain system.
applicable)
fhe drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of the
sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality 401 Oversight Unit at 919-733-
1786.
1 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 name:lnnsbrook Clubhouse Villas
6MP drainage area nuntber:Phase 1 A DA 3
Printname:Willianl C. Stillwagon
Title: President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:724-834-' 01 _
Signature: VZ/W/�� EI
Date: r.'_
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.
County of b.-V
Zi3t day of
a Notary Public for the State of
U Ao hereby certify that
appeared before me this
� 1)6and acknowledge the due
execution of the forgoing bioretention maintenance requirements. Witness my hand and
official seal,
Notaria. to
Doris C. Kieble �iaq Public
City Of Greensburg.'.. :, jmIand County
My Commission V- a:. ,nme 11, 2004
Member, PennGVII: . ..,.

Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
1 Immediately after the bioretention cell is established, the plants will be watered twice
weekly if needed until the plants become established (commonly six weeks).
2 Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
3 Heavy equipment will NEVER be driven over the bioretention cell.
4 Special care will be taken to prevent sediment from entering the bioretention cell.
5 Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, 1 will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be available
upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris,
The perimeter of the
bioretention cell
Areas of bare soil and/or erosive
gullies have formed.
Regrade the soil if necessary to remove
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or Swale
applicable).
sediment off -site.
The pipe is cracked or otherwise
Replace the pipe.
dammed(if applicable).
Erosion is occurring in the Swale
(if applicable).
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced turf
matting or riprap to avoid future
problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged stone
and replace with clean stone.
applicable).

BMP element:
The pretreatment area
The bioretention cell:
vegetation
Potential problems:
Plow is bypassing pretreatment
area and/or gullies have formed
Sediment has accumulated to a
depth greater than three inches.
has
Weeds are present.
Best professional practices show
that pruning is needed to
maintain optimal plant health.
Plants are dead, diseased or
dying.
Tree stakes/wires are present six
The bioretention cell: soils Mulch is breaking down or
and mulch I floated away.
Soils and/or mulch are clogged
with sediment.
An annual soil test shows that
pH has dropped or heavy metals
have accumulated in the soil
media.
How I will remediate the
Kegraae it necessary to route all flow to
the pretreatment area. Restabilize the
area after grading.
Search for the source of the sediment
and remedy the problem if possible.
Remove the sediment and restabilize the
pretreatment area.
Provide additional erosion protection
such as reinforced turf matting or riprap
if needed to prevent future erosion
Remove the weeds, pre
Prune according to best
practices.
Determine the source of the problem:
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application to
establish the ground cover if a soil test
indicates it is necessary.
Remove tree stake/wires (which can kill
the tree if not removed).
Spot mulch if there are only random
void areas. Replace whole mulch layer
if necessary. Remove the remaining
much and replace with triple shredded
hard wood mulch at a maximum depth
of three inches.
Determine the extent of the clogging -
remove and replace eitherjust the top
layers or the entire media as needed.
Dispose of the spoil in an appropriate
off -site location. Use triple shredded
hard wood mulch at a maximum depth
of three inches. Search for the source of
the sediment and remedy the problem if
Dolomitic lime shall be applied as
recommended per the soil test and toxic
soils shall be removed, disposed of
properly and replaced with new planting
media.

BMP element:
Potentialproblems:
How 1 will remediate theproblem:
The underdrain system (if
Clogging has occurred.
Wash out the underdrain system.
applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of the
sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality 401 Oversight Unit at 919-733-
1786.
I acknowledge and agree by my signature below that I am responsible for the performance
of the maintenance procedures listed above. I agree to notify DWQ of any problems with
the system or prior to any changes to the system or responsible party.
Project name:tnnsbrook Clubhouse Villas
BMP drainage area number: Phase IA DA 5
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone: [phone] y
Signature:
Date y i f " e-(Zoo Q�
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.
d(—I/Zi/LkZ/ County of W L
LL riL
day of
a Notary Public for the State of
do hereby certify that
_ personally appeared before me this
(C Fand acknowledge the due
execution of the forgoing biorctention maintenance requirements. Witness my hand and
official seal,
'Ili uLL c
::orrr unr.;r,,:,- 1•. ;t: NcNNSYL
Seal
rloterypublic
CiA�(!t Greei.crt s!moreland(
as June 11, ,

Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
1 Immediately after the bioretention cell is established, the plants will be watered twice
weekly if needed until the plants become established (commonly six weeks).
2 Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
3 Heavy equipment will NEVER be driven over the bioretention cell.
4 Special care will be taken to prevent sediment from entering the bioretention cell.
5 Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be available
upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris,
The perimeter of the
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
bioretention cell
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or Swale
applicable).
sediment off -site.
The pipe is cracked or otherwise
Replace the pipe.
damaged (if applicable).
Erosion is occurring in the Swale
(if applicable).
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced turf
matting or riprap to avoid fume
problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged stone
and replace with clean stone.
a licable).

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing pretreatment
Regrade if necessary to route all flow to
area and/or gullies have formed.
the pretreatment area. Restabilize the
area after grading.
Sediment has accumulated to a
Search for the source of the sediment
depth greater than three inches.
and remedy the problem if possible.
Remove the sediment and restabilize the
pretreatment area.
Erosion has occurred.
Provide additional erosion protection
such as reinforced turf matting or riprap
if needed to prevent future erosion
problems.
Weeds are present.
Remove the weeds, preferably by hand.
The bioretention cell:
Best professional practices show
Prune according to best professional
vegetation
that pruning is needed to
practices.
maintain optimal plant health.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application to
establish the ground cover if a soil test
indicates it is necessary.
Tree stakes/wires are present six
Remove tree stake/wires (which can kill
months after planting.
the tree if not removed).
The bioretention cell: soils
Mulch is breaking down or has
Spot mulch if there are only random
and mulch
floated away.
void areas. Replace whole mulch layer
if necessary. Remove the remaining
much and replace with triple shredded
hard wood mulch at a maximum depth
of three inches.
Soils and/or mulch are clogged
Determine the extent of the clogging -
with sediment.
remove and replace either just the top
layers or the entire media as needed.
Dispose of the spoil in an appropriate
off -site location. Use triple shredded
hard wood mulch at a maximum depth
of three inches. Search for the source of
the sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy metals
recommended per the soil test and toxic
have accumulated in the soil
soils shall be removed, disposed of
media.
properly and replaced with new planting
media.

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system (if
Clogging has occurred.
Wash out the underdrain system.
applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of the
sediment off -site.
The drop inlet is damaged
Re air or replace the drop inlet.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality 401 Oversight Unit at 919-733-
1756.
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 nameArinsbrook Clubhouse Villas
BMP drainage area number: Phase IA DA 6
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:724- 34- 1O10
Date
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.
a Notary Public for the State of
County of L-�V�I 1 y )U aL(sc0i( j hereby certify that
u �(C-� u- oSc' (l (l) �� personally appeared before me this
(S� day of /U W �V4C i� , and acknowledge the due
execution of the forgoing bioretention maintenance requirements. Witness my hand and
official seal,
No!aow seal
Gmis, G. I1�coler, Notary Public
City Of Grs:,� �cia�;, Nestmoreland County
, f")In, ran' lor, y, !ras June 11, 2000

Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
1 Immediately after the bioretention cell is established, the plants will be watered twice
weekly if needed until the plants become established (commonly six weeks).
2 Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
3 Heavy equipment will NEVER be driven over the bioretention cell.
4 Special care will be taken to prevent sediment from entering the bioretention cell.
5 Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24 hours
after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be available
upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BNIP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
bioretention cell
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or otherwise
Replace the pipe.
damaged (if applicable).
Erosion is occurring in the Swale
Regrade the swale if necessary to
(if applicable).
smooth it over and provide erosion
control devices such as reinforced turf
matting or riprap to avoid future
problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged stone
and replace with clean stone.
applicable).

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing pretreatment
Regrade if necessary to route all flow to
area and/or gullies have formed.
the pretreatment area. Restabilize the
area after grading.
Sediment has accumulated to a
Search for the source of the sediment
depth greater than three inches.
and remedy the problem if possible.
Remove the sediment and restabilize the
pretreatment area.
Erosion has occurred.
Provide additional erosion protection
such as reinforced turf matting or riprap
if needed to prevent future erosion
problems.
Needs are resent.
Remove the weeds, preferably by hand.
The bioretention cell:
Best professional practices show
Prune according to best professional
vegetation
that pruning is needed to
practices.
maintain optimal plant health.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application to
establish the ground cover if a soil test
indicates it is necessary.
Tree stakes/wires are present six
Remove tree stake/wires (which can kill
months after planting.
the tree if not removed).
The bioretention cell: soils
Mulch is breaking down or has
Spot mulch if there are only random
and mulch
floated away.
void areas. Replace whole mulch layer
if necessary. Remove the remaining
much and replace with triple shredded
hard wood mulch at a maximum depth
of three inches.
Soils and/or mulch are clogged
with sediment.
Determine the extent of the clogging -
remove and replace eitherjust the top
layers or the entire media as needed.
Dispose of the spoil in an appropriate
off -site location. Use triple shredded
hard wood mulch at a maximum depth
of three inches. Search for the source of
the sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
PH has dropped or heavy metals
recommended per the soil test and toxic
have accumulated in the soil
soils shall be removed, disposed of
media.
properly and replaced with new planting
media.

BINIP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system (if
Clogging has occurred.
Wash out the underdrain system.
applicable)
'The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of the
sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality 401 Oversight Unit at 919-733-
1736.
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 nanie:lnnsbrook Clubhouse Villas
BMP drainage area number: Phase 1 A DA 7
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:[phone]
SignatArc�6 / Q
Date: ZC —�CJ
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, V `s) a Notary P�ubl%'c for the State of
�dCldoherebycertify that
personally appeared before me this
G�S day oa 09, and acknowledge the due
execution of the forgoing biorctention maintenance requirements. Witness my hand and
official seal, �j 1 ) „
r �Lj�_c
;rQf QF.2f.ti:c''t,ir ..:YLVANIA
d Coun
h "'- ••-- .. _, of Notaries

Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
1 Immediately after the filter strip is established, any newly planted vegetation will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
2 Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation
3 Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the vegetation.
4 Two to three times a year, grass filter strips will be mowed and the clippings harvested to
promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf
grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as
12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not
require this type of maintenance.
5 Once a year, the soil will be aerated if necessary.
1 Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours after
every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of
operation and maintenance will be kept in a known set location and will be available upon
request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
B;NP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The Bow splitter device (if
applicable)
The flow splitter device is
clogged.
Unclog the conveyance and dispose of
an sediment off -site.
The flow splitter device is
Make any necessary repairs or replace if
dama red.
damage is too large for repair.
IRU WED.
DEC1'2 2008
�vr %t ��ftt.HU

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level lip
The swale is clogged with
Remove the sediment and dispose of it
sediment.
off -site.
The level lip is cracked, settled,
Repair or replace lip.
undercut, eroded or otherwise
damaged.
There is erosion around the end
Regrade the soil to create a berm that is
of the level spreader that shows
higher than the level lip, and then plant
stornnvater has bypassed it.
a ground cover and water until it is
established. Provide lime and a one-
time fertilizer application.
Trees or shrubs have begun to
Remove them.
grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then reestablish proper
erosion control.
Turf reinforcement is damaged
Study the site to see if a larger bypass
or ripap is rolling downhill.
channel is needed (enlarge if necessary).
After this, reestablish the erosion
control material.
The filter strip
Grass is too short or too long (if
Maintain grass at a height of
applicable).
approximately three to six inches.
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
Sediment is building up on the
Remove the sediment and restabilize the
filter strip.
soil with vegetation if necessary.
Provide lime and a one-time fertilizer
application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application.
Nuisance vegetation is choking
Remove vegetation by hand if possible.
out desirable species.
If pesticide is used, do not allow it to
get into the receiving water.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality local Regional Office, or the
401 Oversight Unit at 919-733-1786.
I acknowledge and agree by my signature below that I am responsible for the performance
of the maintenance procedures listed above. I agree to notify DWQ of any problems with
the system or prior to any changes to the system or responsible party.
Project name:Innsbrook Clubhouse Villas
Btt'1P drainage area number: Phase 1 A DA 3

Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:[phone] _
Signature/�G_l�'
Date: fl- Zz -()
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.
C- UJ3L 4' , a Notary Public for the State of
County of/ U L`j{IV OKZW Ldo hereby certify that
(l U personally appeared before me this
L-L day of / VQU ua g and acknowledge the due
execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance
requirements. Witness my hand and official seal,
SEAL
My commission expires
COMMONWEALTH OF FE'NNSYLVANIA
T lolanai
C,063 C. (<iab:er, iVotary Public
City Ot G, uencburg, 4Vestrnoreland County
d1y C,mmiS i^n Expires June 11, 20C
f.59mY!1i Pte nsylven4l A55001=!' ,I Notaries

Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
1 Immediately after the filter strip is established, any newly planted vegetation will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
2 Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation
3 Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the vegetation.
4 Two to three times a year, grass filter strips will be mowed and the clippings harvested to
promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf
grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as
12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not
require this type of maintenance.
5 Once a year, the soil will be aerated if necessary.
1 Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours after
every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of
operation and maintenance will be kept in a known set location and will be available upon
request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblem:
How 1 will remediate the problem
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device (if
The Flow splitter device is
Unclog the conveyance and dispose of
applicable)
clogged.
any sediment off -site.
The flow splitter device is
Make any necessary repairs or replace if
damaged.
damage is too large for repair.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level lip
The swale is clogged with
Remove the sediment and dispose of it
sediment.
off -site.
The level lip is cracked, settled,
Repair or replace lip.
undercut, eroded or otherwise
damaged.
There is erosion around the end
Regrade the soil to create a berm that is
of the level spreader that shows
higher than the level lip, and then plant
stormwater has bypassed it.
a ground cover and water until it is
established. Provide lime and a one-
time fertilizer application.
'Frees or shrubs have begun to
Remove them.
grow on the Swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have fornted.
the gully, and then reestablish proper
erosion control.
Turf reinforcement is damaged
Study the site to see if a larger bypass
or ripap is rolling downhill.
channel is needed (enlarge if necessary).
After this, reestablish the erosion
control material.
The filter strip
Grass is too short or too long (if
Maintain grass at a height of
applicable).
approximately three to six inches.
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
Sediment is building up on the
Remove the sediment and restabilize the
filter strip.
soil with vegetation if necessary.
Provide lime and a one-time fertilizer
application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application.
Nuisance vegetation is choking
Remove vegetation by hand if possible.
out desirable species.
If pesticide is used, do not allow it to
get into the receiving water.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality local Regional Office, or the
401 Oversight Unit at 919-733-1736.
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 nanre:Innsbrook Clubhouse Villas
BAIP drainage area number: Phase 1 A DA 5

Print name:William C. Stillwagon
Title: President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:724-88 - Ol
SignatureY /
Date:
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, lw5 (S • ItbtC-r/, a Notary Public for the State of
% � IUJJ//JO-county f \;/' M, rWIld, do hereby certify that
personally appeared before me this
Z� day of and acknowledge the due
execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance
requirements. Witness my hand and official seal,
SEAL
My commission
:;Ofv'•t/(>.16`/E/;!�rH Of PENSYLVANIA
i~ edal Seal
Cir;rlg i�;. Kiollfr Notary Public
"I'StIroreland County
Aiy Cr;mr'ig�yr. a, f:r.,9 June 11, 2WO
of Notaries

Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
1 Immediately after the filter strip is established, any newly planted vegetation will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
2 Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation
3 Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the vegetation.
4 Two to three times a year, grass filter strips will be mowed and the clippings harvested to
promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf
grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as
12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not
require this type of maintenance.
5 Once a year, the soil will be aerated if necessary.
1 Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours after
every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of
operation and maintenance will be kept in a known set location and will be available upon
request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The Bow splitter device (if
The flow splitter device is
Unclog the conveyance and dispose of
applicable)
clogged.
any sediment off -site.
The flow splitter device is
Make any necessary repairs or replace if
damaged.
dama�e is too large for repair.

BM element:
Potentialproblem:
How I will remediale theproblem:
The Swale and the level lip
The Swale is clogged with
Remove the sediment and dispose of it
sediment.
off -site.
The level lip is cracked, settled,
Repair or replace lip.
undercut, eroded or otherwise
damaged.
There is erosion around the end
Regrade the soil to create a berm that is
of the level spreader that shows
higher than the level lip, and then plant
stormwater has bypassed it.
a ground cover and water until it is
established. Provide lime and a one-
time fertilizer application-.
Trees or shrubs have begun to
Remove them.
grow on the Swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then reestablish proper
erosion control.
Turf reinforcement is damaged
Study the site to see if a larger bypass
or ripap is rolling downhill.
channel is needed (enlarge if necessary).
After this, reestablish the erosion
control material.
The filter strip
Grass is too short or too long (if
Maintain grass at a height of
applicable).
approximately three to six inches.
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
Sediment is building up on the
Remove the sediment and restabilize the
filter strip.
soil with vegetation if necessary.
Provide lime and a one-time fertilizer
application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
the problem and replace plants. Provide
a one-time fertilizer application.
Nuisance vegetation is choking
Remove vegetation by hand if possible.
out desirable species.
If pesticide is used, do not allow it to
get into the receiving water.
The receiving water
Erosion or other signs of damage
Contact the NC Division of water
have occurred at the outlet.
Quality local Regional Office, or the
401 Oversight Unit at 919-733-1786.
I acknowledge and agree by my signature below that I am responsible for the performance
of the maintenance procedures listed above. I agree to notify DWQ of any problems with
the system or prior to any changes to the system or responsible party.
Project name:lnnsbrook Clubhouse Villas
BMP drainage area number: Phase lA DA 6

Print name:William C. Stillwa otg �
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:[phone]
Signature
Date: 0--
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.
a Notary Public for the State of
County of ��y�do hereby certify that
f n 1 personally appeared before me this
day of W,�and acknowledge the due
execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance
requirements. Witness my hand and official seal,
SEAL
My commission expi
COMMONWEAL I UP PENNSYLVANIA
Notarial Seal
Doris C. Kiebler. No Public
Clty Of Greensburg, Westrnme and County
My Commis,;on Expires June 11, 2000
Member. Assxiation of Notaries
/LJ

Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
known set location. Any deficient BMP elements noted in the inspection will be corrected,
repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety
of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
I Immediately after the filter strip is established, any newly planted vegetation will be
watered twice weekly if needed until the plants become established (commonly six
weeks).
2 Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation
3 Stable groundcover will be maintained in the drainage area to reduce the sediment load
to the vegetation.
4 Two to three times a year, grass filter strips will be mowed and the clippings harvested to
promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf
grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as
12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not
require this type of maintenance.
5 Once a year, the soil will be aerated if necessary.
1 Once a year, soil pH will be tested and lime will be added if necessary.
After the Filter strip is established, it will be inspected quarterly and within 24 hours after
every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of
operation and maintenance will be kept in a known set location and will be available upon
request.
Inspection activities shall be performed as follows. Any problems that are found shall be
repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the traslildebris.
system
The flow splitter device (if
The flow splitter device is
Unclog the conveyance and dispose of
applicable)
clogged.
an sediment off -site.
The flow splitter device is
Make any necessary repairs or replace if
damaged.
damage is too large for repair.

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level lip
The swale is clogged with
Remove the sediment and dispose of it
sediment.
off -site.
'fire level lip is cracked, settled,
Repair or replace lip.
undercut, eroded or otherwise
damaged.
There is erosion around the end
Regrade the soil to create a berm that is
of the level spreader that shows
higher than the level lip, and then plant
stormwater has bypassed it.
a ground cover and water until it is
established. Provide lime and a one-
time fertilizer application.
Trees or shrubs have begun to
Remove them.
grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then reestablish proper
erosion control.
Turf reinforcement is damaged
Study the site to see if a larger bypass
or ripap is rolling downhill.
channel is needed (enlarge if necessary).
After this, reestablish the erosion
control material.
The filter strip
Grass is too short or too long (if
Maintain grass at a height of
applicable).
approximately three to six inches.
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove
gullies have formed.
the gully, and then plant a ground cover
and water until it is established.
Provide lime and a one-time fertilizer
application.
Sediment is building up on the
Remove the sediment and restabilize the
Filter strip.
soil with vegetation if necessary.
Provide lime and a one-time fertilizer .
application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the problem:
dying.
soils, hydrology, disease, etc. Remedy
'
the problem and replace plants. Provide
a one-time fertilizer application.
Nuisance vegetation is choking
Remove vegetation by hand if possible.
out desirable species.
If pesticide is used, do not allow it to
et into the receiving water.
The receiving water
Erosion or other signs of damage
Contact the NC Division of Water
have occurred at the outlet.
Quality local Regional Office, or the
401 Oversight Unit at 919-733-1786.
1 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:lnnsbrook Clubhouse Villas
BAJP drainage area number: Phase IA DA 7

Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Phone:[phone] _1
Signature/ /may
I�ntr�l�zi_UZl
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.
a Notary Public for the State of
0) /15t/ W-�UCCt-�ounty of W LJ7 1101 do hereby certify that
LOt (((CZJ Y1 C l (CUolQO'1 personally appeared before me this
day of M L6LA' -f _11 , z� 0 ,and acknowledge the due
execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance
requirements. Witness my hand and official seal,
SEAL
My commission
Notanat Scat
Dons C. Kiebler, Notary Public
City Of GraeGstxjrg, Westnvxeland County
My Commi s;Un EXpPes June 11, 2"
Asscoiation of Notaries

REF -I En
DEC 1, 2 2008
f)vV X-WAll '(1
INNSBROOK CLUBHOUSE
AND FITNESS CENTER
BERTIE COUNTY, NORTH CAROLINA
PROJECT NARRATIVE
PREPARED BY:
HOBBS, UPCHURCH & ASSOCIATES, P.A.
300 S.W. BROAD STREET
SOUTHERN PINES, NC 28387
REVISED November, 2008

Project Narrative
Innsbrook Golf Course & Residential Development
Innsbrook Clubhouse and Fitness Center
Merry Hill, Bertie County, North Carolina
Revised November 14, 2008
Proiect Descrintion
This project is a proposed new clubhouse and fitness center disturbing approximately 11.25
acres in the Innsbrook Golf Course and Residential Development. Adding to this area as well
will be an additional 5 duplex villas and tennis courts which will cause an additional 4.80 acres
of land disturbance. This particular phase in the development was formerly part of the Phase 1,
but due to the area being classified as a high -density area, was removed from Phase 1 and is
now a new phase of development, Phase 1A. Phase 1A includes a duplex villa unit being used
as a temporary clubhouse, a permanent clubhouse, a fitness center, 5 residential duplex villas,
an area for four tennis courts, and associated roads and infrastructure. All work will be
completed within the existing property limits. The development property is located south of US
17 at the mouth of the Chowan River east of the Merry Hill, NC (see attached vicinity map and
detailed plans).
Site Descriotion
The existing property is vegetated with native and volunteer grasses, agricultural, and wooded
areas. Slopes within the project area are generally in the range of 2-4% while there are some
steeper areas in the vicinity of the pond's edge. Primary drainage for the project will be via
existing ditches eventually leading to Black Walnut Swamp (C;NSW).
Adiacent ProDertv
Land use in the vicinity of the project is residential/agricultural. All work will be completed within
the limits of the existing property.
Soils
The dominant soil types in the development consist of Craven -Lenoir and Goldsboro -Norfolk -
Craven on the ridges and level areas respectively. Generally, these soils consist of a loamy
surface layer with loamy or clayey subsoil. Drainage ranges from well drained to poorly drained
with hydrologic soil groupings from B to D.
Previous and Current Permittin
To the south of Phase 1A is Phase 1 residential which has been permitted for Erosion Control
and Stormwater Management and has completed construction entering the development along
Innsbrook Blvd. connecting to the Phase 1A area and beyond. To the east and west is the golf
course which is part of the Phase 1 portion of the development and has been permitted for
Erosion Control and Stormwater Management and has completed construction leading up to the
Phase I area. To the north of Phase 1A is Phase 2 residential which has been permitted for
Erosion Control and Stormwater Management and will be commencing with construction in the
near future. Prior to the area being classified as a high -density area there was a portion of what

is now Phase 1A that was permitted for Erosion Control under the project name of Temporary
Clubhouse Site Development Permit No. Bertie-2008-002. This permit should be voided and
replaced with the permitting for the now Phase 1 A area once it is approved.
Phase 1 Golf and Residential Area Stormwater Permit had been resubmitted for modifications
and was approval and construction of the newly permitted areas are under way.
This phase of development has a current stormwater permit #SW7080320 as well as an erosion
control permit for the previously permitted area of 11.25 acres. The requested modification of
the existing permit will add the construction of the duplex villas and tennis courts and a new
erosion control permit to permit 4.80 acres for the revised area.
Stormwater Management
This project will be developed under the high -density requirements for coastal counties and is
currently in the process of being permitted.
This project proposes to convey stormwater primarily through piping and having the outlets of
the piping enter four bioretention areas two areas are in the northern part of the phase area and
two in the southern.
The modification of the permit will cause the bioretention area located southeast of the
temporary clubhouse to increase in size and will add an additional three bioretention areas in
and around the villas area.
Sheet flow from yards or golf course areas will be treated via the use of the 30 foot vegetated
buffer. This buffer will surround all proposed ponds and existing surface waters adjacent to the
property. The buffer will be planted and maintained with native and volunteer vegetation. No
built upon areas will be allowed within the delineated buffer area.
The bioretention areas are designed in accordance with the latest revisions to the BMP manual
Calculations:
Sizing of the storm drain piping and erosion control measures was done to the 10 yr.
design event.

Stormwater Management Narrative
Innsbrook Golf and Marina
Innsbrook Chibhouse and Fitness Center
Phase 1A
Bettie County, NC
November 14, 2008
General Information
1. Name of Project:
InRJbrvok. Clnbbonue and I'aiiess Censer
2. Street Address, City, County:
lausbrook Go# and tl-laana. hdeny I fill, Berlie Co.
3. Geographic Coordinates: 82G853.51-N 26832/,.5.33W
4. Acres in Tract: 23.24 acres
5. Acres Being Disturbed: 11.23+1.80 acres
6. Acres in Wetlands: 0 acres
(Wetlands must be delineated & Sign -Off obtained from USACOE)
(Proposed Wetland Impacts Require Permits from Corps & DWQ)
7. Ownership Information From NC Secretary of State Web Site:
Rial Corpaalion
8. Description of Development Proposal:
The propose o/lhi.r projrel h to conslntel a lernponny and pensanew clubhouse oud /ilness ,enter to reme
lhegoll cau:re along rumda led rvud;naps, par;C-ing and nlililies. !Ilro, 3 irrrideutial ril&u and leonis
tow"Is.
9. Description of Adjacent Land Uses:
residenlial and gol% comae
10. Description of Existing Site & Topography:
'I be ext:4uig area where the /ircililies air to be placed is a bull up high poini milh an eleralim of
uppm_vinurlely 36 and .i/oping to 1he soulh to an elevation o/ 13 and to 1he nod.) to cur eleralion
11. Previous or Existing Permits:
J'W l
12. Tax parcel ID Number:
013847 PG 230
13. Pre-1988 Built Upon Area, If Applicable:
NIA
14. Discuss Phasing of the Project & Stormwater Facilities:
Payees is prvpareel to be rvnslai, lets in a single phase
15. Discuss Proposed Waste Water Treatment & Water Supply:
I i%'�ulruzrler7 iralmeu/ and 1FalerSupply .shall be prorided by evi.Uir{g rnaills.
16. Identify Historic Sites & Projects Being Funded With Public Monies:
None
17. Disclose Anv/All Non -Compliance Issues with DENR Agencies:
1A'o issue orarnung Ibis nrnr Phase
Stormwater Narrative Page I of 2

Stormwater Information
1. River Basin: Cbommn
2. Stream Classification:
i. Name: 131ark It%alnul.S'ap Index No.: 25-25 Class: C;!\tS1J Dist. from Site: fr.
ii. Name: Salmon Creek Index No.: 23-24 Class: CNISIl%Dist. from Site. ft.
iii. Name: Index No.: Class: Dist. from Site: ft.
3. Identify Whether the Stormwater Design is High Density or Low Density, Commercial
or Residential, State Stormwater or NPDES Phase II, Address Vested Rights When
Applicable; Identify Pockets of High Density:
1-1i3b Den.sily Oesigir, Cowlal County
4. Proposed Total'Vo Impervious Surface:
5. Number of Proposed Treatment Measures, Type(s) of Collection System:
There air 4 eolledioa sysleois lav to lbe mr1b emsh-thi19 a% m o 13io-rrlenlion Cells awl la)o to the sowb
nn i.iYlr{g also of /nvo Bio-rrlenlion Cel%t.
6. Will All Built Upon Area Be Collected:
1'E?S
7. Identify Whether or Not the Project Has Buffer Requirements & Whether or Not
Development Is Proposed Within A Buffer:
\[/; I
8. Discuss Coastal Management AEC's When Applicable:
!V/!I
9. Discuss Off -Site Runoff-
,V/1I
10. Discuss Whether Road Construction Across Other property Is Necessary To Access
This Project:
Ai Bess !fie rile mill bane a near lbe sue to The Phase I and Phase 2 arras.
11. If An On -Site Evaluation Of The Soils Has Been Done, Discuss Infiltration Rates,
Seasonal High Water Table, etc., and Include Date Of Site Evaluation (This Is
Required For Infiltration Projects):
On -Site Eralnalion is underway retadls or pendii%
Additional Comments
Stormwater Narrative Page 2 of 2

HOBBS, UPCHURCH & ASSOCLATF.S LE'rrER of TRANSMITTAL
CONSUL T/NC EVGbVEERS Date: 12/II/2008 JobNo. BE0803
P.O. BOX 1737 Attu. DWQ - Samir Dum or
300 SOUPH WESTBROAD STREET Rct:: Innsbrook Clubhouse Villas
SOUTHERN PINES, NORTH CAROLINA 28387
PHONE: [phone]
FAX: [phone]
To: NCDENR-Washinlgton Regional Office We are sending you:
943 Washington Square Mule o Attached
Washington, NC 27889 O Under separate cover VIA
'rhe Following Item(s):
0 Shop Drawings O Prints O Samples
O Copy of Leher O Change Order O
NT Ir;L:h"WP)EID,
DEC 1 2 2008
O Spccitications�%lr(f i
1Nri6=t,..
Copies
Date
Project No.
Description
3
Plans, Supplements, Calcs and Agreements
2
One original and one copy High Density Application for modification
1
$505.00 pennut fees
These are Transmitted as Checked Below :
O For Approval 0 Approved as Submitted
t� For Your Use Approved as Noted
O As Requested O Returned for Corrections
O For Review and Comment O
Remarks: Samir,
O Resubmit for Approval
O Submit for Distribution
O Return Corrected Prints
0 Prints Resumed After Loan to Us
Ene'IOSC(I is the package we talked about for Innsbrook.
It is a modification of the existing pcmrit
adding in lire Villas and "tennis courts.
Please call if you have any questions about the project
Copy To:
Signed: u�Q UAU—. —
Frank Wanko, Project Designer

FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more acres as c
before this form and an acceptable erosion and sedimentation control plan h
and approved by the Land Quality Section, N.C. Department of Environment
Resources. (Please type or print and, if the question is not applicable or the
information unavailable, place N/A in the blank.)
Part A.
Project Name
/�-l6-oY l3l.+Q
77,
DEC 1 3 20,;w
btN@
k%pRSEC➢ON
DEC 16 2008
2. Location of land -disturbing activity: County Bertie City or Township Merry
Hill
Highway/Street SR1511 & SR1502 Latitude 35.5955 Longitude 76.4125
3. Approximate date land -disturbing activity will commence: January 2009
4. Purpose of development (residential, commercial, industrial, institutional, etc.):
Residential
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 480
Acres
6. Amount of fee enclosed: $ 325.00 The application fee of $65.00 per
acre (rounded up to the next acre) is assessed without a ceiling amount (Example: a 9-acre
application fee is $585).
7. Has an erosion and sediment control plan been filed? Yes No
Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing
activity:
Name William C. Stillwaoon E-mail
Address N/A
Telephone [phone] Cell #
Fax #
9. Landowner(s) of Record (attach accompanied page to list additional owners):
Name
Innsbrook Golf and Marina LLC 252-473-1450
Telephone
P.O. Box 248 934 Sutton Rd.
Current Mailing Address Current Street Address
Fax Number
Merry Hill NC 27957 Merry Hill NC
27957
City
Zip
State Zip City
State

10. Deed Book No. 847 Page No. 230 Provide a copy of the most
current deed.
Part B.
1. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide
a comprehensive list of all responsible parties on an attached sheet):
Innsbrook Golf and Marina. LLC
Name E-mail Address
P.O. Box 248 934 Sutton Rd.
Current Mailing Address Current Street Address
t
Merry Hill NC 27957 Merry Hill NC
27957
City State Zip City State Zip
Telephone [phone] Fax
Number
2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street
address of the designated North Carolina Agent:
Name E-mail Address
Current Mailing Address Current Street Address
City State Zip City State
Zip
Telephone Fax
Number
(b) If the Financially Responsible Party is a Partnership or other person engaging in business
under an assumed name, attach a copy of the Certificate of Assumed Name. If the Financially
Responsible Party is a Corporation, give name and street address of the Registered Agent:
Chris Catron
Name of Registered Agent E-mail Address
220 Cheslea Mall - 264
Current Mailing Address Current Street Address
Manteo NC 27954
City State
Zip
State

Telephone [phone] Fax
Number
The above information is true and correct to the best of my knowledge and belief and
was provided by me under oath (This form must be signed by the Financially
Responsible Person if an individual or his attorney -in -fact, or if not an individual, by an
officer, director, partner, or registered agent with the authority to execute instruments for
the Financially Responsible Person). I agree to provide corrected information should
there be any change in the information provided herein.
William C. Stillwagon
President
Type or print name Title or Authority
Signature Date
a Notary Public of the County of La�'1CY 1L� l�
S ate ofN a,hereby certify that
f �i1'111c u%a i (n appeared personally before me this day
and being duly sworn acknowl ged that the above form was executed
by, him.
Witness my hand and notarial seal, this Z6-Eday of � � , 20 L0 77
Notary
Seal
My commission
expires
COMMONVVEACrN irr p_yIVSYL'JANIP,
Notarial S� il
Doris C. Kiebler, Nolary Public
City Of Greensburg, Westmoreland County
My Commission Expires dune 71, 2
Member, Farnc+r,• < 4::::.-, ;;cn o; hotariac

A 7-f9
407
William C. Stillwagon
Rial Corporation
P.O. Box 248
Merry Hill, NC 27957
Dear Mr. Stillwagon:
WaRo
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
Subject: Stormwater Permit No. SW7080320
Innsbrook Clubhouse and Fitness Center
High Density Bio-Retention Project
Bertie County
The Washington Regional Office received a complete Stormwater Management Permit
Application for Innsbrook Clubhouse and Fitness Center on March 20, 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.1000. We are forwarding Permit No.
SW7080320 dated April 4, 2008, for the construction of the subject project.
This permit shall be effective from the date of issuance until April 4, 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 150E 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].
ince�e L
A Hoag 1
Regional Supervisor
Surface Water Protection Section
AH/sd: J:\WPDATA\WQS\Samir - State SW\Permits-Bioretention
cc: Frank Wanko, PE, Hobbs, Upchurch and Associates, P.A. (P.O. Box 1737,
Southern Pines, NC 28388)
Bertie County Building Inspections
✓CVashington Regional Office
Central Files
North Carolina Division of Water Quality Internet: �\%.ncN%atrrgtditv.urc One
c1., 7
943 Washington Square Mail Phone [phone] lv OlthCarolina
Washington, NC 27889 Fax [phone] Natumlly
An Equal DpportunitylAfirmatrve Action Employer— 50% Recycied/10% Post Consumer Paper

State Stormwater Management Systems
Permit No. SW7080320
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
Rial Corporation
Innsbrook Clubhouse and Fitness Center
Bettie County
FOR THE
construction, operation and maintenance of 4 bioretention basins 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.
This permit shall be effective from the date of issuance until April 4, 2018, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.7 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 176,592 square feet of
impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in Section
1.7 of this permit, and per the application documents and as shown on the
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 built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
Page 2 of 8

State Stormwater Management Systems
Permit No. SW7080320
The following design criteria have been provided in the bioretention basins and
must be maintained at design condition:
a.
b.
C.
d.
e.
f.
h.
i.
k.
n.
o.
P.
q.
r.
S.
a.
b.
C.
d.
e.
f.
9.
i.
k.
n.
o.
P.
q•
r.
Drainage Area, sf:
Total Impervious Surfaces, ft2:
Design Storm, inches:
Max. Ponded Depth, feet:
Seasonal High Water Table, fmsl:
Planting Media Depth, feet:
Basin Dimensions, feet:
Bottom Elevation, fmsl:
Bottom Surface Area, ftZ:
Permitted Storage Volume, ft3:
Bypass / Storage Elevation, fmsl:
Drawdown Time, hours:
Underdrain Diameter, inches:
Total number of plants provided:
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body:
Drainage Area, sf:
Total Impervious Surfaces, ftZ:
Design Storm, inches:
Max. Ponded Depth, feet:
Seasonal High Water Table, fmsl
Planting Media Depth, feet:
Basin Dimensions, feet:
Bottom Elevation, fmsl:
Bottom Surface Area, ftZ:
Permitted Storage Volume, ft3:
Bypass / Storage Elevation, fmsl:
Drawdown Time, hours:
Underdrain Diameter, inches:
Total number of plants provided:
Receiving Stream/River Basin:
Stream Index Number:
Classification of Water Body: .
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall
vegetated and operational for its intended
built -upon surface.
BASIN #1
BASIN #2
146,725
129,643
85,646
72,706
1.0
1.0
0.75
0.75
9.5
9.5
3.0
3.0
138'x69'
126'x64'
13.25
19.0
9,340
8,000
7,035
5,993
17.0
23.0
12
12
4
4
87
74
Black Walnut Swamp / Chowan
25-25
"C; NSW"
BASIN #3
BASIN #4
63,074
32,391
8,934
9,306
1.0
1.0
0.75
0.75
9.5
9.5
3.0
5.0
51'x25'
48'x24'
16.5
17.0
1,260
1,150
933
833
20.0
23.0
12
12
4
4
12
11
Black Walnut Swamp / Chowan
25-25
"C; NSW"
be constructed in its entirety,
use prior to the construction of any
2. 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 time 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).
Page 3 of 8

State Stormwater Management Systems
Permit No. SW7080320
b. Sediment removal.
C. Mowins and re -vegetation of slopes and the filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader,
filter media, planting media, underdrains, catch basins and piping.
g. Access to the basin and outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
5. The permittee shall submit to the Division of Water Quality an annual summary
report of the maintenance and inspection records for each BMP. The report
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
7. Upon completion of construction, 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.
8. 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.
9. Access to the stormwater facilities shall be maintained via appropriate recorded
easements at all times.
10. The permittee 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.
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.
11. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, prior to construction.
Page 4 of 8

State Stormwater Management Systems
Permit No. SW7080320
12. A copy of the approved plans and specifications shall be maintained on file by
the Permittee at all times.
13. 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.
III. GENERAL CONDITIONS
1. 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 completed Name/Ownership Change form signed by both parties, to the
Division of Water Quality, accompanied by the supporting documentation as
listed on page 2 of the form. The approval of this request will be considered on
its merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves a request to transfer the permit.
3. 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.
4. 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.
5. 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.
6. 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.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. 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.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
11. This permit shall be effective from the date of issuance until April 4, 2018.
Application for permit renewal shall be submitted 180 days prior to the expiration
Page 5 of 8

State Stormwater Management Systems
Permit No. SW7080320
date of this permit and must be accompanied by the processing fee.
12. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
Permit issued this the 4th day of April, 2008.
NQRTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
)or coieen N. Sullins, uirector
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 8

State Stormwater Management Systems
Permit No. SW7080320
Innsbrook Clubhouse and Fitness Center
Stormwater Permit No. SW7080320
Bertie County
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 Name)
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. SW7080320
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation, per the vegetation plan.
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. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Bertie County Building Inspections

W0.2p �'�es
-' DWQ USE ONLY
Date Received
Fee Paid
Permit Number
+� rIL 02 u08
5U17a£3o32c�
1EY' PrIESS State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
NC CENRR'ORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
L GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Rial Corporation
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
William C. Stillwaeon. President, Rial Corporation
3. Mailing Address for person listed in item 2 above:
City:MerrvHill State:NC Zip:27957
Phone: (724 ) 834-5010 Fax:
Emai I: sti I IwagonlawO,verizon. net
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Innsbrook Clubhouse and Fitness Center
5. Location of Project (street address):
SR 1502, Avoca Farm Rd.
City:Merry Hill County:Bertie
6. Directions to project (from nearest major intersection):
US 17N from Windsor (10.2m). rieht on SR45 at Midway (1 6m)left on Avoca Farm Rd (4 lm)
7. Latitude:36-00-OIN Longitude:7641-43W of project
8. Contact person who can answer questions about the project:
Name: Frank Wanko, Hobbs. Upchurch & Assoc Telephone Number: (910 1 692-5616
Email: fwankoahobbsupchurch.com
II. PERMIT INFORMATION:
1. Specify whether project is (check one): ®New ❑Renewal [Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing
permit number and its issue date (if known)
Forth SWU-101 Version 8.07 Pagel of4

3. Specify the type of project (check one):
❑Low Density ®High Density ❑Redevelop ❑General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks):
❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two
pages) describing storrwater management for the project .
Stormwater from the project will be handled using 2 bioretention cells in the northern part of the project the
southern part will be handled with a two bioretention cells as well
2. Stormwater runoff from this project drains to the Chowan River basin.
3. Total Site Area: N/A acres 4. Total Wetlands Area: N/A acres
5. 100' Wide Strip of Wetland Area: N/A acres (not applicable if no wetlands exist on site)
6. Total Project Area**:23.25 acres 7. Project Built Upon Area:8.4
8. How many drainage areas does the project havev4
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 Areal ...:
" Drainage Area 2, ,, ),
..... .. .. ....
Receiving Stream Name
See Attached Sheets
See Attached Sheets
Stream Class & Index No.
Drainage Area (so
Existing Impervious* Area (sf)
Proposed Impervious*Area (so
% Impervious* Area (total)
Impervious Surface`Area-
''," 'DrainageAreal„`
Drainage '- ---°•
On -site Buildings s
(• D
On -site Streets (sf)
On -site Parking (so
On -site Sidewalks (so
Other on -site (so
Off -site (so
Total (so:
* 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'?There are no of site impervious areas draining
to the on -site drainage areas (all woodlands and natural conditions)
Form SWU-101 Version 8.07 Page 2 of

Basin'Information ';"` �' ". }>
. ' Draina e`Area 1 , r `-
Drairia e'Area',2 °° '.;.
Receiving Stream Name
Black Walnut Swamp
Black Walnut Swam
Receiving Stream Class
C;NSW
C;NSW
Drainage Area sf
146,725
3.37
129,643
2.98
Existing Impervious* Area sf
0
0.00
0
0.00
Proposed Impervious* Area sf
85,646
1.97
72,706
1.67
% Impervious* Area total
58.37%
56.08%
*impervious area is defined us the built upon area including, but not limited to, buildings, roads, parking
areas, sidewalks, grave areas, etc.
Form SWU-101 Version 3.99 Page 1 of I

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 DP PC-
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC4
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 forms) listed below must be submitted for each BMP
specified for this project. Contact the Stormwater and General Permits Unit at [phone] for the status and availability
of these forms.
Form SW401-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW401-Infiltration Trench
Form SW401-Bioretention Cell
Form SW401-Level Spreader
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401-Sand Filter
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Form SWU-101 Version 8.07 Page 3 of 4

VI. 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
htto://h2o.enr.state.ne.us/sa/msi mays htm)
Please indicate that you have provided the following required information by initialing in the space provided next to each
item.
Original and one copy of the Stormwater Management Permit Application Form
Original and one copy of the Deed Restrictions & Protective Covenants Form
Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP
Permit application processing fee of $505 ($4,000 for Express) payable to NCDENR
Calculations & detailed narrative description of stormwater treatment/management
Copy of any applicable soil report
Three copies of plans and specifications (sealed, signed & dated), including:
- Development/Project name
- Engineer and firm
-Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please
complete this section.
Designated agent (individual or firm):Frank Wanko - Hobbs. Uvchurch and Assoc., P.A.
Mailing Address:PO Box 1737
City:Southem Pines State:NC Zip:28388
Phone: [phone] Fax: [phone]
Email: fwanko(a)hobbsuychurch.com
VHLAPPLICANT'S CERTIFICATION
I, (print or type name ofperson listed in General Information, item 2) William C. Stillwagon. President, Rial Corporation ,
certify that the information included on this permit application form is, to the best of my knowledge, correct and that the
project will be cons cted in confo ce with the approved plans, that the required deed restrictions and protective
covenants wil e o nd, proposed project complies with the requirements of 15A NCA 2H .10.0.
Signature: Da :
Form SWU-101 Version 8.07 Page 4 of 4

Rial Corp Cation
Attn.: liam C. Stillwagon, President
P.O ox 248
rry Hill, NC 27957
Dear Mr. Stillwagon:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
March 28, 2008
Subject:: Stormwater Review SW7080320
Innsbrook Clubhouse and Fitness Center
Bertie County
This office received a Coastal Stormwater permit application and plans for the subject project on
March 20, 2008. A preliminary review of your project indicates that before a State Stormwater permit
can be issued the following additional information is needed:
�1. Revise Section 111.1 (Project Information) of the Stormwater Application, and describe
proposed 4 Bioretention cells, not 2 Wet Ponds and 2 Bioretentions, as this section currently
reads.
Revise plans for the following:
a. Add side slopes on Bioretention detail (not to exceed 3:1).
b. Clarify the bypass for Bioretention cells. Show the detail of proposed bypass.
Revise the Stormwater Narrative to read 4 Bioretention cells instead of 2 Wet Ponds and 2
Bioretention Cells.
Provided Calculations are not signed and sealed. Please submit signed and sealed set.
DA #1:
a. The Application shows that Drainage Area #1 is 167,216 sf, the Bioretention
Supplement shows 159,338 sf and the Calculations show 146,725 sf. Please revise;
b. The Application shows that Impervious area is 96,815 sf, the Bioretention
Supplement and Calculations show 73,894 sf. Please revise;
c. The required Volume in Calculations is 6,153.4 cf, while the Supplement shows
6,003.4. Please revise;
d. The required Surface Area in Calculations is 8,205 sf, while the Supplement shows
8,010 sf. Please revise;
6. DA #2:
a. The Application shows that Drainage Area #2 is 155,696
Supplement and Calculations shows 129,643 sf; Please revise;
b. The Application shows that Impervious area is 81,702
sf, the Bioretention
sf. the Bioretention
Supplement and Calculations show 71,702 sf. Please revise;
c. The Temporary Pool elevation in supplement is shown at 23.00', while the table in
plans shows 22.75'. Please revise;
7. DA #3:
a. The Application shows that Impervious area is 8,934 sf, the Bioretention Supplement
and Calculations show 9,005 sf. Please revise;
b. The Temporary Pool elevation in supplement is shown at 20.00', while the table in
plans shows 20.25'. Please revise;
North Carolina Division of Water Quality Internet: www ncwaterouality ore
943 Washington Square Mall Phone [phone]
Washington, NC 27889 Fax [phone]
NorthCarojina
Natura!!r,
An Equal OpportunitylAKrmaGve Action Employer— 50 % Regdedll0 % Post Consumer Paper

V 8. DA #4:
a. The Application shows that Impervious area is 32,391 sf, the Bioretention
Supplement and Calculations show 32,376 sf. Please revise;
b. The Temporary Pool elevation in supplement is shown at 23.00', while the table in
plans shows 22.75'. Please revise;
9. LS for DA #1
a. The Application shows that Drainage Area #1 is 167,216 sf, the
Level Spreader
Supplement shows 159,338 sf and the Calculations show 146,725 sf.
Please revise;
b. The Application shows that Impervious area is 96,815 sf, the
Level Spreader
Supplement and Calculations show 73,894 sf. Please revise;
10. LS for DA #2
a. The Application shows that Drainage Area #2 is 155,696 sf, the
Level Spreader
Supplement and Calculations shows 129,643 sf; Please revise;
b. The Application shows that Impervious area is 81,702 sf, the
Level Spreader
Supplement and Calculations show 71,702 sf. Please revise;
11. LS for DA #3
a. The Application shows that Impervious area is 8,934 sf, the
Level Spreader
Supplement and Calculations show 9,005 sf. Please revise;
J//12. LS for DA #4
a. The Application shows that Impervious area is 32,391 sf, the
Level Spreader
Supplement and Calculations show 32,376 sf. Please revise;
13. Provide 2 sets of signed and sealed plan sheets.
The above requested information must be received in this office prior to April 4, 2008 or your
application will be returned as incomplete. The return of this project will necessitate resubmittal of all
required items including the application fee. If you need additional time to submit the required
information, please mail or fax your request for time extension to me at the Letterhead address and
include the application number on the request. The request must include justification for the amount of
additional time needed. The request will only be granted for justifiable delays that are unforeseen and
beyond the owner or consultant's control.
You should also be aware that the Stormwater Rules require that the permit be issued prior to
any development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North
Carolina General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day.
Please reference the Stormwater Project Number above on all correspondence. If you have
questions, please feel free to contact me at [phone].
Sincerely,
_c
Samir Dumpor, PE
Environmental Engineer
Washington Regional Office
cc: ✓Washington Regional Office
Frank Wanko, PE, Hobbs, Upchurch & Associates, P.A. (PO Box 1737, Southern Pines, NC
28388)

HOBBS, UPCHURCH & ASSOC/A TES
COA'SUL TING ENGLVEERS
Mj P.O. BOX 1737
300 SOUTH WEST BROAD STREET
SOUTHERN PINES. NORTH CAROLINA 28387
PHONE: [phone]
FAX: I-(910)-692-7342
,To: NCDENR -DWQ
943 Washington Square Mall
Washington, NC 27889
LETTER OI' TRANSMITTAL
Date: 4/1/2008 Job No. BE0702
Ann. Samir Dum or. PE
Ref: Innsbrook Clubhouse and Fitness Center
We are sending you: Attached RECEI T @@// LP
��ss1Rl��
O Under separate cover VIA
APR 0 2 202
The Following Item(s) :
o Shop Drawings 0 Prints o Samples O Specificatidt F v t - ARO
O Copy of Letter Change Order O Storntwater Pennit
critics
Date
Project No.
Description
2
1 original and I copy revised application
I
Responses to commons
2
sets of plans with revisions
2
sets of calculations with revisions
2
sets of revised narratives
These are Transmitted as Checked Ileloe :
O For Approval
O Approved as Submitted
0 Resubmit
for Approval
0 For Your Use
O Approved as Noted
F--1 Submit
for Distribution
r-----] As Requested
[7---1 Returned for Corrections
O Return
Corrected Prints
O For Review and Comment O
0 Prints Returned Afier Loan to Us
12emarks:
rmre are me pints, appncauon, caics :ran narratives rmsea per your comments. wnen i was going
through the areas I Gamd a couple of errors which changed some of the numbers reported earlier in the
cales, drawings and application. This did not make any major changes to any of the devices.
Please call ifyou have any questions about the project.
Copy To: Signed: `�� V,
Frank Wanko,

Hobbs, Upchurch & Associates, P.A.
VJ4 Consulting Engineers
300 S.W. Broad Street • Southern Pines, NC 28388
March 31, 2008
NCDENR
943 Washington Square Mall
Washington, NC 27889
Attn: Samir Dumper, PE
Re: Innsbrook Clubhouse and Fitness Center
IUA Job #BE0702
Dear Mr. Dumper,
The following is in response to comments made by your office for the above named project and our responses are as
follows:
1. Revise Section 111.1 (Project Inffmmation) of the Stormwater Application, amd describe proposed 4
Bioretention cells, not 2 Wet Ponds and 2 Bioretention, as this section currently reads
Application has been revised for 4 Bioretention Cells.
2. Revise plansfirrthefollowing:
a. Add side slopes on Bioretention detail (not to exceed 3:1)
Side slopes added to detail.
b. Clark the hjPass for Bioretention cells. Shou, the detail ofproposed h.lpass.
New detail for clarification is now on C-8.
3. Revise the Stor nwater Narrative to read 4 Bioretention cells instead of 2 lVet Ponds and 2 Bioretention
Cells.
Narrative has been revised.
4. Provided Calculations' are not signed and sealed. Please submit signed and sealed set.
Provided.
5. DA#1:
a. The application shows that the Drainage Area #1 is 167,216 sf the Bioretention Supplement shows
159,3385fandtheCalculations.shativ146,725.}f Pleaserevise.
Revised
h. The application shoos that Impervious area is 96,815 sf the Bioretention Supplement and Calculations
show 73,894. f Please revise.
Revised.
c. The required Volume in Calculations is 6.153.4 cf, while the Supplement shows 6,003.4. Please revise.
Revised.
d. The required Stofirce Area in Calculations is 8,205 sf while the Supplement s'hovs 8,010 sf Please
revise.
Revised.
6. DA#2:
a. The application .shows that the Drainage Area #2 is 155,696 sf, the Bioretention Supplement shoes
and Calculations shoe 129,643 sf: Please revise.
Revised
b The application shows that hnperrious area is 81,702 sf the Bioretention Supplement and Calculations
show 71,702 sf. Please revise.
Revised.
c The Tentporary Pool elevation in supplement is shown at 23.00, while the table and is plans shows
22.75'. Please revise.
Southern Pines, NC . Telephone [phone] Fax [phone] . email: [e-mail]
Myrtle Beach . Nags Head . Raleigh . Charlotte . Beaufort

The spreadsheet provided by NCDENR has no decimal points and therefore rounds the number.
7. DA#3:
a. The application shows that Inrpeti,ious area is 8,934 sf, the Bioretention Supplement and Calculations
.show 9,005 sf. Please revise.
Revised
h The Temporary Pool elevation in supplement is shown at 20.00', while the table and is plans shows
20.25'. Please revise.
The spreadsheet provided by NCDENR has no decimal points and therefore rounds the number.
S. DA#4:
a. The application shows that Impervious area is 32,391 sf the Bioretention Supplement and Calculations
show 31,376 sf. Please revise.
Revised
b The Ternpormy fool elevation in supplement is shown at 23.00', while the table and is plans shows
22.75'. Please revise.
The spreadsheet provided by NCDENR has no decimal points and therefore rounds the number.
9. LS for DA#1:
a. The application shows that the Drainage Area #1 is 167,216 sf, the Bioretention Supplemment .shows
159,338 efand the Calculations show 146,725 sf. Please revise.
Revised
b. The application shows that Impervious area is 96,815 sf, the Bioretention Supplement and Calculations
show 73,894 sf. Please revise.
Revised.
10. LS for DA#2
a. The application shows that the Drainage Area #2 is 155,696 sf the Bioretention Supplement shows
and Calculations show 129,643 af. Please revise.
Revised
b The application shows that Impervious area is 81,701 sf, the Bioretention Supplement and Calculations
show 71,702 .cf. Please revise.
Revised.
11. LSforDA#3:
a. The application shows tint Impen+ious area is 8, 934 sf, the Bioretention Supplement and Calculations
show 9,005 sf. Please revise.
Revised
12, LSforDA#4:
«. The application shows that Impernious area is 32,391 s'f, the Bioretention Supplement and Calculations
sdhow32,376sf. Pleaserevise.
Revised
13. Provide 2 sets of signed and sealed plan sheets.
1rovided.
Please note that some areas have changed completely, this is due to checking the areas and revising the
values.
If you should have any questions or concerns during your review, please do not hesitate to contact this office.
Sincerely,
11O1313S, UPCIIURCFI AND ASSOCIATES, P.A.
Prank D. Wanko
Project Designer
habe0703 clubhuus'eI IMiesponse to dhcq war08.doe

North Carolina Department of Environment and
FAA Natural Resources
NC®ENR Request for Express Permit Review
For DENR Use ONLY
Reviewer: �Y4Hi V-
T
Confirm: 03 H
a1ug
FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed form to Express
Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application package
of the project location. Please include this form in the application package.
• Asheville Region -Alison Davidson 828-196-4698;alison.davidson(alncmail.net
• Fayetteville or Raleigh Region -David Lee 919-791-4203; david.lee(a)ncmail.net
• Mooresville & -Patrick Grogan 704-663-3772 or patrick.grogan(a)ncmail.net
• Washington Region -Lyn Hardison 252-946-9215 or Iyn.hardison(�ncmail.net
• Wilmington Region -Janet Russell 910-350-2004 or ianet.russell(alncmail.net
NOTE Project application received after 12 noon will be stamped in the following work day.
Project Name: INNSBROCK CLUBHOUSE AND FITNESS CENTER County: BERTIE
Applicant: WILLIAM C STILLWAGON, PRESIDENT Company: RIAL CORPORATION
Address: PO BOX 248City: MERRY HILL, State: NC Zip: 27957
Phone:[phone] Fax: Email: stillwagonlaw(a@,verizon.net
Project Drains into water classified BLACK WALNUT SW C NSW (for classification see -
http://h2o,enr.state.nc.us/bims/repoTs/reportsWB.html)
MAR 2 0 Z008
NC DENR
Project Located in CHOWAN River Basin. Is project draining to class ORW waters? N , within''/1 mile and draining to class SA waters N or
within 1 mile and draining to class HOW waters? N
Engineer/Consultant: FRANK WANKO Company: HOBBS, UPCHURCH AND ASSOC
Address: PO BOX 1737 City: SOUTHERN PINES, State: NC Zip: 28388
Phone: [phone] Fax::[phone] Email: fwanko hohobbsupchurch.com
(Check all that apply)
❑ Scoping Meeting ONLY ❑ DWO, ❑ DCM, ❑ DLR, ❑ OTHER:
❑ Stream Origin Determination: # of stream calls - Please attach TOPO map marking the areas in questions
❑ State Stormwater ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility
❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)]
® High Density -Detention Pond 2 # Treatment Systems ❑ High Density -Infiltration _ #Treatment Systems
® High Density -Bio-Retention 2 # Treatment Systems ❑ High Density-Stormwater Wetlands _ # Treatment Systems
❑ High Density -Other _ # Treatment Systems ❑ MODIFICATION SW _ (Provide permit #)
L Coastal Management L Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK # (for DENR use))
WETLANDS QUESTIONS MUST BE ADDRESSED BELOW
❑ Wetlands (401): Check all that apply Isolated wetland on Property ❑ Yes ❑ No
Wetlands on Site ❑ Yes ❑ No Buffer Impacts: ❑ No ❑ YES: acre(s)
Wetlands Delineation has been completed: ❑ Yes ❑ No Minor Variance: ❑ No ❑ YES
US ACOE Approval of Delineation completed: ❑ Yes ❑ No Major General Variance ❑ No ❑ YES
404 Application in Process w/ US ACOE: ❑ Yes ❑ No 401 Application required: ❑Yes ❑ No If YES, ❑ Regular
Permit Received from US ACOE ❑ Yes ❑ No Perennial, Blue line stream, etc on site ❑ yes ❑ No
For DENR use only
Fee Split for multiple permits: (Check # 4L�4- 01 Total Fee Amount S
SUBMITTAL DATES
SUBMITTAL DATES
Fee
CAMA
Variance ❑ Ma'; ❑ Min
$
SW (© HD, ElLID.❑Gen)
3-2o - ocd
AFee
401:
$
LQS
Stream Deter,_
$
NCDENR EXPRESS January 2008

RIAL CORPORATION
FAYTOTHHC/V/'J
IAITITORDEROF
® Commonwealth®
!! Ilm CummunwnitA leek
cemml WI.: l.die m, vn 1571i) W
iDmmmwn ereensEur, Mice .
+':04330682D: 0006
60-682/433 4604
000 8366
DAT
ILa3564604
REcEivEm
MAR 2 0 2000
DWQ-WARO
EXPRESS
MAR 2 0 200E
NC ®ENR

HOBBS, UPCHURCH & ASSOMT@S
CONSUL HVC F,NCINFFRS
P.O. BOX 1737
300 SOUTH WEST BROAD STREET
SOUTIiERN PINES, NORTII CAROLINA 28387
PHONE: [phone]
FAX: [phone]
To: NCDENR - Washington Reg. Office
943 Washington Square Mall
Washington, NC 27989
The Fallowing Iten (s) :
LETTER OF TRANSVIITTAL
Date: 3/19/2008 jJob No. BE0702
Alm. Lyn I ardison
Ref.: Innsbrook Clubhouse and Fitncss Ccntcr
We are sending you
0 Attached ����
o Under separate cover VIARE
o Shop Drawings 0 Prints o Samples
0 Copy of Lctter O Change Order
MAR 2 0 2008
o Speci Dmt s .WARD
Copies
Date
Project No.
Description
I
Check For $4000 permit tees
2
Sets ofApplications
2
Scts of Plans
2
Sets of C dcs, Supplements, Narratives, Dad and O fi M agreements
2
Soils Reports
These are Transmitted as Checked Below :
O For Approval
O Approved us Submitted O Resubmit
for Approval
O For Your Use
O Approved as Noted 0 Submit
for Distribution
O As Requested
0 Returned for Corrections O Retum
Corrected Prints
For Review and Comment I
O Prints Returned After Loan to Us
Remarks: Lyn,
First, thanks for all your help in handling this project. As you can see Mr. Stillwagon wants to get the
jump on the Stonmvater permit and submit the Erosion Control seperatcly under an express permit as
wdl. This should be torthcoming within the nest liw days.
Copy To: Signed: CLA—,-j _ C A&-
Frank Wanko, Project Designer

hinsbrook Clubhouse
Subject: Innsbrook Clubhouse
From: "Frank Wanko" <[e-mail]>
Date: Thu, 20 Mar 2008 15:12:58 -0400
To: <[e-mail]>
Lyn,
When I was checking over things, because we added two more level spreaders I forgot to have the O & M
agreement added in. Mr. Stillwagon is getting a whole new set of agreements for the project to sign and
notarize and he wants to send them directly to you to save a day or two.
When you receive them please discard of all agreements sent in with the package.
Thank -You,
Frank Wanko , Project Designer
Hobbs ,Upchurch & Associates, P.A.
300 S.W. Broad St .
Southern Pines, NC 28387
Tel: [phone]
Fax:[phone]
E-Mail: fwanko(cDhobbsupchurch.com
Upon opening this file or any attachments, you agree to the following disclaimer:
The coordinate data provided within this file has been prepared for the owner and is furnished for general
information only. While this information is believed to be reliable, Hobbs, Upchurch & Associates, P.A.
(HUA) can not assure the accuracy and thus is not responsible for the accuracy of work based upon this
data. The user of this data is advised to obtain independent verification of the accuracy of the data
provided before applying it to any purpose. Use without such independent verification will be at said user's
sole risk.
The user hereby waives any claim against HUA and to defend indemnity and holds HUA harmless from
any claim or liability for injury or loss allegedly arising from the use of data provided by HUA. The user
further agrees to compensate HUA for any time spent or expenses incurred by HUA in defense against any
such claim, in accordance with HUA's prevailing fee schedule and expense reimbursement policy
I ol' I 3/25/2008 8:53 AM

Pennit
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMW.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will betaken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3 Page 1 of 6

Permit
(to be provided by DWQ)
Drainage Area
Form SW401-Bioretention O&M-Rev.3 Page 2 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which can
six months after planting.
kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
H has dropped or heavy
recommended per the soil test and
Form SW401-Bioretention O&M-Rev.3 Page 3 of 6

metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new olantine media.
Form SW401-Bioretention O&M-Rev.3 Page 4 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
1 733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 5 of 6

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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 nsL�fJ-J�1��" �/' l , a N,ota.,ry/Publi for the State of
/, 1 r /�txxoouunty of
OJ�t' Jar ! z hereby certify that
0i i GG I�w a- G/)�( s� personally appeared before me this AM
day of / �L C�U \ , L and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
L/
C�
Notarial Seal
SEAL Doris C. Kiebler, Notary Public
City Of Greensburg, Westmoreland County
My Commission Expires June 11, 2008
Member, Pennsylvania Association of Notaries
My commission expires
Form SW401-Bioretention I&M-Rev. 2 Page 6 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMW. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will be taken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the Swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3 Page 1 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Form SW401-Bioretention O&M-Rev.3 Page 2 Of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
(lies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which can
six months after planting.
kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
H has dro ed or heav
recommended per the soil test and
Form SW401-Bioretention O&M-Rev.3 Page 3 of 6

metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new olantine media.
Form SW401-Bioretention O&M-Rev.3 Page 4 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
1 733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 5 of 6

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase I DA 2
Print name: William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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 1 t S �'� , a Notary Public for the State of
County of PRXZ�hereby certify that
Cpersonally appeared before me this
day of and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
Notarial Seal
SEAL Doris C. Kiebler, Notary Public
City CF Greensburg, Westmoreland County
My Commission Expires June 11, 2008
Member, Pennsylvania Association of Notarie
My commission expires
Form SW401-Bioretention 1&M-Rev. 2 Page 6 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will betaken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
-applicable).
Form SW401-Bioretention O&M-Rev.3 Page I of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Form SW401-Bioretention O&M-Rev.3 Page 2 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which can
six months after planting.
kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
H has dropped or heavy
recommended per the soil test and
Form SW401-Bioretention O&M-Rev.3 Page 3 of 6

metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new olantine media.
Form SW401-Bioretention O&M-Rev.3 Page 4 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
1 733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 5 of 6

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase 1 A DA 3
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
Late: /J 4 /l)sl
z
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.
day of
a Notary Public for the State of
County ot`W ��JVVU(tL(U. CJdo hereby certify that /�y�
� (1L 1 personally appeared before me this Jy & )
and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL COMMONWEALTH OF PENNSYLVANIA
Notarial Seal
Doris C. Kiebler, Notary Public
City Of Greensburg, Westmoreland County
My commission expires MyCommiissionE) iresJune11.2008
Member, Pennsylvania Association of Notaries
Form SW401-Bioretention I&M-Rev. 2 Page 6 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will betaken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide time and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3 Page 1 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Form SW401-Bioretention O&M-Rev.3 Page 2 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion 2roblems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying,
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wires are present
Remove tree stake/wires (which can
six months after planting.
kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
H has droF
recommended per the soil test and
Form SW401-Bioretention O&M-Rev.3 Page 3 of 6

metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new olantine media.
Form SW401-Bioretention O&M-Rev.3 Page 4 of 6

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
(if applicable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 5 of 6

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase IA DA 4
Print name:William C. Stillwai4on
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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.
[, Nr t --s 0 g"liv_ , a Notary Public for the State of
I-Ull)�t4l[UAU' unty of f IU( U6U c& hereby certify that /
t Arn �ra1onally appeared before me this ) D
day of 'u2 r c 1 , and ac owledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
SEAL
My commission
�Ua(-C'
COMMONWEALTH OF PENNSYLVANIA
Notarial Seal
Dods C. Kiebler, Notary Public
City Of Greensburg, Westmoreland County
My Commission Expires June 11, 2008
Member, Pennsylvania Association of Notaries
Form SW401-Bioretention I&M-Rev. 2 Page 6 of 6

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMW.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page I of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the Swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying,
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
dama e have occurred at the
Qualit local Re Iona] Office, or the
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 4

outlet. 401 Oversight Unit at 979-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase 1 A DA 1
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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.
a Notary Public for the State of
County of
UJ V<-j Y Y IU 1C.IW UlAo hereby certify that � /�
personally appeared before me this I ` Qu/ 1
day of /"Ly(% \ GWO, and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL
My commission
11�illi.
COMMONWEALTH OF PENNSYLVANIA
Notarial Seal
Doris C. Kebler, Notary Public
City Of Greensburg, Westmoreland County
My Commission Expires June 11, 2008
Member, Pennsylvania Association of Notaries
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Re Tonal Office, or the
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 4

outlet. 1401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
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 name:lnnsbrook Clubhouse and Fitness Center
BMP drainage area number:
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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.
2'4e-1,6_)3J -`'r a Notary
of
day of
the State of
(,(�[to--lerebycertify that / q?ql
appeared before me this
and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL Notarial Seal
Doris C. Kiebler, Notary Public
City Of Greensburg, Westmoreland County
My Commission Wires June 11, 2008
My commission expires Member, Pennsylvania Association of Notaries
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMW.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 4

BMP element:
Potentialproblem:
How 1 will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the Swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
a2proximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality local Regional Office, or the
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 4

outlet. 1401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
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 name:Innsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase I A DA 3
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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.
day of
a Notary,Public for the State of
of LUK-_'�If IUI -CAC-446dhereby certify that
personally appeared before me this t -t 6 J
and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
Notarial Seal
SEAL Cods C. Kiebler, Notary Public
City m Greensburg, Westmoreland County
My Commission Expires June 11. 2008
My commission
of
Form S WU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMW. This maintenance record will be kept in a
log in a known set location. Any deficient BMW elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
— Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
— Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
— Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
— Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC, 1993). Forested filter strips do not require this type of maintenance.
— Once a year, the soil will be aerated if necessary.
— Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter device is
Unclog the conveyance and dispose
(if applicable)
clogged.
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 4

BMP element:
Potentialproblem:
How I will remediate theproblem:
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of it off -site.
The level lip is cracked,
Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Regrade the soil to create a berm
end of the level spreader that
that is higher than the level lip, and
shows stormwater has
then plant a ground cover and
bypassed it.
water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun
Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is
Study the site to see if a larger
damaged or ripap is rolling
bypass channel is needed (enlarge if
downhill.
necessary). After this, reestablish
the erosion control material.
The filter strip
Grass is too short or too long
Maintain grass at a height of
(if applicable).
approximately three to six inches.
Areas of bare soil and/or
Regrade the soil if necessary to
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated.
Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is
Remove vegetation by hand if
choking out desirable species.
possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
dama a have occurred at the
Quali local Re Tonal Office, or the
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 4

outlet. 1401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
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 name:lnnsbrook Clubhouse and Fitness Center
BMP drainage area number:Phase I DA 3
Print name:William C. Stillwagon
Title:President
Address:934 Sutton Rd., Merry Hill, NC 27957
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, / I' t n a Notary Public for the State of
y—
ounty o do hereby certify that
,,/ � personally appeared before me this
day of (,f 1 L and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
SEAL
My commission expires
COMMONWEALTH OF PENNSYLVANIA
Notarial Seal
Dons C. Kiebler, Notary Public
City Of Greensburg, Westmoreland County
My Commission Expires June 11, 2008
Member, Pennsylvania Association of Notaries
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 4 of 4

Merry Hill, NC, United States of America - Google Maps
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