SW8050518_Historical File_20100326

A'
NCDE SIR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
March 26, 2010
Mr. J. Michael Moore, Town Manager
Town of Surf City
,214 N. New -Rivet Drive p O ,pao u c. Lt -1
Surf City, NC 28445
Subject: Stormwater Permit No. SW8 050518 Modification
Surf City Community Park and Recreation Center
High Density Project
Pender County
Dear Mr. Moore:
Dee Freeman
Secretary
The Wilmington Regional Office received a complete modified Stormwater Management Permit
Application for Surf City Community Park and Recreation Center on March 15, 2010. Staff
review of the plans and specifications has determined that the project, as proposed, will comply
with the Stormwater Regulations set forth in SL2008-211 and Title 15A NCAC 2H.1000,
effective September 1, 1995. We are forwarding Permit No. SW8 050518 MOD dated March
26, 2010, for the construction, operation, and maintenance of the subject project.
This permit shall be effective from the date of issuance until September 13, 2015, 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 Ceneral 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
Steve Pusey, or me at [phone].
Si�nr ely,
rSc.�
eor ette cot
9
Stormwater Supervisor
Division of Water Quality
GDS/sgp: S:IWQSISTORMWATERIPERMIT1050518MOD.mar10
cc: Ted Burke, PE, Cavenaugh and Associates
Pender County Planning Department
Steve Pusey
Wilmington Regional Office Stormwater File
Central Files
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748 NofffiCarolina
Internet: vrww.ncwaterguality.org ��tlir6i�Ci�
An Equal Opportunity 1 Affirmative Action Employer

State Stormwater Management Systems
Permit No. SW8 050518 MOD
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
J. Michael Moore and the Town of Surf City
Surf City Community Park and Recreation Center
201 Community Center Drive, Surf City, Pender County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of SL2008-211 and 15A NCAC 2H .1000, effective September 1, 1995
(hereafter collectively and separately 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 September 13, 2015, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 187,014 square feet of
impervious area in a drainage area of 554,266 square feet (the "High Density
Tract"). The remaining project area of 477,468 square feet (the "Low Density
Tract") must be maintained at 12% built -upon area or less, as required by
Section .1005 of the stormwater rules. The overall built -upon area for both tracts
combined must be maintained at 25% or less.
3. The High Density Tract will be limited to the amount of built -upon area indicated
on page 3 of this permit, and per approved plans. There is no allotment for future
built -upon area.
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.
Page 2 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
5. The
runoff from all built -upon area within the permitted High Density Tract of this,
project must be directed into the permitted stormwater control system.
6. The
following design criteria have been provided in the wet detention pond and
must be maintained at design conditions:
a.
Drainage Area, ft2, (acres):
554,266 (12.72)
Onsite, ft2:
486,266 (DA1, HD, onsite)
Offsite, ft2 (SW8 091206):
68,000 (DA1, HD, offsite)
b.
Total Impervious Surfaces, ft2:
187,014
Onsite, ft2:
135,163
Subject to the 1995 Rule (ft2)"
94,090
Subject to the 2008 Rule (ft2)*"
41,073
Offsite, ft2 (SW8 091206):
Subject to the 2008 Rule (ft2)**
51,851 (HD, offsite)--ive-tJe Cj4.
C.
Design Storm, inches:
Impervious subject to the 1995 Rule (in)*
1.5
Impervious subject to the 2008 Rule (in)**
3.75
d.
Average Pond Design Depth, feet:
3.0
e.
TSS removal efficiency:
90%
f.
Permanent Pool Elevation, FMSL:
26.00
g.
Permanent Pool Sudace Area, ft2:
120,629
h.
Permitted Storage Volume, ft3:
60,689
i.
Temporary Storage Elevation, FMSL:
26.44
j.
Pre-dev. 1 yr-24 hr. discharge rate, cfs:
0.92
k.
Weir Length (ft):
1.0
I.
Weir Driving Head, Max/Average (ft):
0.5/0.17
M.
Weir flowrate, cfs:
0.2
n.
Permitted Forebay Volume, ft3:
N/A
o.
Fountain Horsepower:
1
P.
Receiving Stream/River Basin: Intracoastal Waterway / Cape Fear
q.
Stream Index Number: 18-87-(5.5)
r.
Classification of Water Body: "SA; HQW"
* 15A NCAC 2H .1000, effective September 1, 1995, design storm 1.5"
** Additional built upon area added by this modification is subject to SL2008-211, effective October 1,
2008, design storm is pre -post difference for the 1 year 24 hour storm.
7. Approved plans and specifications for projects covered by this permit are
incorporated by reference,and are enforceable parts of the permit.
8. The only runoff conveyance systems allowed within the Low Density Tract will be
vegetated conveyances such as swales with minimum side slopes of 3:1 (H:V)
as defined in the stormwater rules and approved by the Division.
9. No piping is allowed in the Low Density Tract except that minimum amount
necessary to direct runoff beneath an impervious surface such as a road or to
provide access.
10. Unless specified elsewhere, permanent seeding requirements for the swales
must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
11. Within the Low Density Tract, a 50' buffer shall be provided adjacent all
impounded structures, rivers, streams and tidal waters. The buffer is not required
within the High Density Tract.
Page 3of9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
12, Roof drains in the Low Density Tract must terminate at least 50' from the Mean
High Water line. Roof drains in the High Density Tract must be directed or
connected to the stormwater management system.
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
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 times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
a. -Separated units, where the nozzle, pump and.intake are connected by
tubing, may be used only if they draw water from the surface in the
deepest part of the pond.
b. The falling water from the fountain must be centered in the pond, away
from the shoreline.
C. The maximum horsepower for a fountain in this pond is 1 horsepower.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
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.
Page 4 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
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
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.
14. Swales and other vegetated conveyances shall be constructed in their entirety,
vegetated, and be operational for their intended use prior to the construction of
any built -upon surface.
15. The permittee shall at all times provide the operation and maintenance
necessary in the Low Density Tract to operate the permitted stormwater
management systems at optimum efficiency to include:
a. Inspections
b Sediment removal.
C. Mowing, and revegetating of the side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and
specifications.
16. The permittee shall submit all information requested by the Director or his
representative within the time frame specified in the written information request.
Page 5 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
fill. 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 mailing address change, or a name
change of the permittee or project, the permittee must submit a completed and
signed name/ownership change form to the Division of Water Quality,
accompanied by the required documentation as listed on the form. The approval
of this request will be considered on its merits and may or may not be approved.
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action;
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
10. The permittee shall submit a permit renewal application at least 180 days prior to
the expiration date of this permit. The renewal request must include the
appropriate documentation and the processing fee.
Permit issued this the 26th day of March, 2010.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Division of Water Quality
By Authority of the Environmental Management Commission
Page 6 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
Master Permit No. SW8 050518 MOD
Lot # from
Master Permit
Drains to
Pond #
Offsite Permit No.
Date Issued
Offsite Project Name
Allocated
BUA
Proposed
BUA
DA1
Pond #1
SW8 091206
Karen Beasley Sea Turtle
Rescue & Rehab. Center
51,851
51,851
Page 7 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
Surf City Community Park and Recreation Center
Stormwater Permit No. SW8 050518
Pender 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)
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 8 of 9

State Stormwater Management Systems
Permit No. SW8 050518 MOD
•k
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.
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
Pender County Planning Department
Page 9 of 9

Pusey, Steven
From: Johnson, Kelly
Sent: Tuesday, January 05, 2010 10:06 AM
To: [e-mail]
Cc: Pusey, Steven; Ted Burke
Subject: FW: Surf City Park (SW8 050518) & Turtle Hospital (SW8 091206)
Resending
From: Johnson, Kelly
Sent: Tuesday, January 05, 2010 10:04 AM
To: '[e-mail]'
Cc: Ted Burke'; Pusey, Steven
Subject: Surf City Park (SW8 050518) & Turtle Hospital (SW8 091206)
Amanda,
As we discussed this morning, if there is an access road outside -of the boundaries of the park and the hospital, and the
purpose of the road is to access the hospital, then the access road must be covered in the hospital's permit. The park's
permit will be written to cover the total BUA of the Park and the offsite draining to it (which will consist of both the
hospital and the access road). The hospital's permit will be an offsite to the park and will cover the total BUA offsiting to
the park while breaking out the amounts allocated to the hospital and to the access road separately. I think that a
portion of the hospital was to be treated onsite, if that is the case then that BUA will also be covered in the hospital's
permit as onsite bua.
I have previously talked with Ted Burke with your company about a road but I do not know if it is the same road. Steve
Pusey is the review engineer assigned to both of these projects and can answer further technical questions.
Kelly
*** My email has changed to [e-mail]
I,eLLW IDh K60I&
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7345
Fax: [phone]
E-maii correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

Johnson, Kelly
From: Johnson, Kelly
Sent: Tuesday, December 15, 2009 9:00 AM
To: 'Ted Burke'
Subject: FW: Surf City Park & Turtle Rehab Center
Attachments: Surf City.xls; FW: Stormwater Permit Modification
Ted,
When we talked the other day you were going to submit the following:
1.) Plans: DA maps for both projects
2.) Type of Permit: N/A, I talked to Linda and she said that she agreed. (I attached a previous email between the
two of you from a while back).
3.) Turtle Center:
a. Wetland Plan View, Sheet C.7.3:
i. OK — one accepts water from the low end of a parking lot
ii. OK
iii. Add - The permanent pool elevation is at 21.75, but this elevation is not shown. We will need to
see the dimensions of the permanent pool (lengths and radii of lines/arcs) as is required for a
wet pond.
b. Level Spreader/Filter Strip, Sheet C.7.4 & C.7.3:
i. Add - We will need the length of the level spreader on the plans.
ii. Add - We will need the filter strip location on the plans. (What I mean by that is that if the level
spreader if 50ft and the filter strip is Soft, we will need to see a 50ftx50ft area noted on the
plans for the filter strip).
iii. Discussed in Narrative - SL2008-211 No Discharge: We will need a statement as to how this site
will comply with Section 2(b),(1)(c).
c. OK (discussed above) - Drainage Area Maps: A drainage area map is provided on sheet CAA showing
DA1(high density) and DA2 (low density). But, since DA1 now has both onsite and offsite portions, we
will need to have those portions broken out separately.
4.) N/A — I verified this with Linda
I am supposed to set a 24-hr timeframe to get omitted items in-house. I didn't do that last week because I knew I would
not have time to get to it that quickly even if you submitted it that quickly. But, I need to either accept or return this
package this week because I cannot hold uncashed checks for very long. Please respond by COB Wednesday.
Thanks,
KJ
From: Johnson, Kelly
Sent: Monday, December 07, 2009 2:34 PM
To: 'Ted Burke'
Subject: Surf City Park & Turtle Rehab Center
Ted,
We got these applications, and I went through them today. I have a few questions for you.
5.) Plans: Did you intend to submit a set of plans for the park and a set of plans for the turtle center? We received
four copies of the turtle center plans.
6.) Type of Permit: It the following a description of the types of permits that you are seeking?

a. Turtle Center: A wetland permit that also includes an offsite section for part of this area to drain to the
park
b. Park: A wet pond permit that also includes a master offsite section to accept a portion of the Turtle
Center
7.) Turtle Center:
a. Wetland Plan View, Sheet C.7.3:
L There are two forebays listed but only one receives water?
ii. Why is there a pipe connecting two sides of the wetland?
iii. The permanent pool elevation is at 21.75, but this elevation is not shown. We will need to see
the dimensions of the permanent pool (lengths and radii of lines/arcs) as is required for a wet
pond.
b. Level Spreader/Filter Strip, Sheet C.7.4 & C.7.3:
i. We will need the length of the level spreader on the plans.
ii. We will need the filter strip location on the plans. (What I mean by that is that if the level
spreader if 50ft and the filter strip is 50ft, we will need to see a 50ftx50ft area noted on the
plans for the filter strip).
iii. SL2008-211 No Discharge: We will need a statement as to how this site will comply with Section
2(b),(1)(c).
c. Drainage Area Maps: A drainage area map is provided on sheet C.4.1 showing DA1(high density) and
DA2 (low density). ,But, since DA1 now has both onsite and offsite portions, we will need to have those
portions broken out separately.
8.) Park: I have attached a summary of what has been permitted for this project (in both 2005 and in August 2009)
and have added the proposed offsite data to drain to the park's pond. Previously, we had determined that this
site must stay below 25% (low density overall per the 1995 SA requirement), and that the "new" area permitted
in August 2009 would have to stay under 12%. It looks like you are adding 51,851sf of BUA on 68,OOOsf of DA
(76.25%). How is this different from what we required in August?
Thanks,
Kelly
*** My email has changed to [e-mail]
K,eI.LW 1*wSDw
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7345
Fax: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

Johnson, Kelly
From: Lewis,Linda
Sent: Thursday, December 10, 2009 3:57 PM
To: Johnson, Kelly
Subject: FW: Stormwater Permit Modification
FYI
Linda
Please note my new email address is [e-mail]
Linda Lewis
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 28405
910-796-7215
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.
From: Lewis,Linda
Sent: Thursday, November 05, 2009 3:20 PM
To: 'Ted Burke'
Cc: Lau, Aisha
Subject: RE: Stormwater Permit Modification
Ted
The Town would modify their existing permit to add an "offsite" drainage area and lump sum allocation of BUA
for that portion of the Sea Turtle hospital project to be treated in their pond. The Town would sign that
application and a new O&M for their pond. We strongly urge the Town and the hospital to come to a legal
agreement as to how / if the hospital will contribute to the maintenance costs of the Town's pond, and any
expectations that the hospital has to meet and other rights that the hospital may have.
Concurrently, or not, the Sea Turtle hospital would submit a separate application for a new high density permit,
signed by the owners of the hospital. The application would contain SWU-101 with 2 completed drainage area
columns, one for the on -site hospital BMP and one for the offsite drainage area of the hospital that will be
treated by the Town's permitted BMP. The SWU-101 form has places to provide owner, purchaser, lessee, and
developer contact information and signatures, to be completed depending on who is submitting the application.
The hospital's application package would also contain a completed supplement form and a signed O&M
document for the hospital's proposed on -site BMP (signed by the hospital owners) as well as a completed
Offsite supplement form for the portion of the hospital's lot being treated in the Town's BMP.
Keep in mind that the Town's BMP must be certified and in compliance before a permit can be issued to the
hospital. A compliance inspection will be performed prior to issuing a permit. If the Town's BMP has to be
expanded to accommodate the additional drainage area, the 2008 rules require it to be redesigned to meet the
2008 design requirements. If the additional volume and new minimum surface area can be contained within the
existing pond without expanding it, only the additional volume contributed by the Sea Turtle hospital has to be
calculated at the new design storm level.

Linda
Please note my new email address is [e-mail]
Linda Lewis
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 28405
910-796-7215
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.
From: Ted Burke [maiito:[e-mail]]
Sent: Thursday, November 05, 2009 1:14 PM
To: Lewis,Linda
Subject: Stormwater Permit Modification
Hello Linda,
I haven't caught up with you in awhile; I hope things are going well. I've got a stormwater permitting situation that is
unique to me and wanted to get your advice on the best way to permit the project. I spoke with Aisha ( I think) and she
recommended that I contact you directly.
My project is a new sea turtle hospital that will be located on a 4 acre parcel in Surf City. The site is divided into two
drainage areas, each approximately 2 acres. Runoff from drainage area 1 will be directed to an on -site BMP for
treatment. Runoff from drainage area 2, however, is will be directed to an offsite BMP. The project parcel is located
adjacent to property owned by the Town of Surf City, which currently has a large permitted wet detention pond. The Town
of Surf City would like to work with the Turtle Hospital and is willing to let us modify their permit/pond to accept the runoff
from drainage area 2.
This scenario brings several questions to mind regarding permissions, who needs to sign forms, etc, etc. I'd appreciate
your thoughts on the best way to pull the permit package together for this one (who signs what, etc.). If you'd like
additional details, or would like to discuss the project, please give me a call at your convenience at 910-619-1256.
Regards,
Ted
Edward "Ted" Burke, P.E.
Cavanaugh & Associates, P.A.
130 North Front Street, Suite 202
Wilmington, NC 28401
910.619.1256 (c)
910.392.4462 (o)
910.392.4612 (f)
tburke(a-)cavanaughsolutions.com
www.cavanaughsolutions.com

December 1, 2009
Kelly Johnson
NCDENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Surf City Community Park Modification
Dear Ms. Johnson:
REUD u E C 0 4 2009
+ `: A-t
CAVANAU13H
Solutions through integrity and partnership
DEC 0 4 2009
Cavanaugh & Associates, P.A. on behalf of the Town of Surf City, hereby submits the following
application to NCDENR Division of Water Quality for review of the Stormwater Management
Permit Application for the Surf City Community Park Modification. The subject project is
located in Surf City, Pender County, North Carolina.
To facilitate your review of the enclosed documentation, the following is an itemized
breakdown:
1. One (1) check in the amount of $505.00 to satisfy the application fee, made payable to
'NCDENR'.
2. One (1) original 'Stormwater Management Permit Application Form' for the Town of Surf
City.
3. One (1) copy of the `Stormwater Management Permit Application Form' for the Town of
Surf City.
4. One (1) copy of the most current property deed.
5. One (1) copy of the `Wet Detention Basin Supplement'.
6. One (1) original 'Wet Detention Basin Operation and Maintenance Agreement'.
7. One (1) copy of the 'Stormwater Management High Density Permit Application
Supplemental Report'.
8. Two (2) copies of the `Stormwater Plans'.
Please do not hesitate to contact our office should you have any questions, comments, or
require any additional information.
Regards,
LAVA AUGH & ASSOCIATES, P.A.
6;."
n.,
Jeff Cappado a, E.I.
Attachments
cc: Michael Moore, Town Manager, Town of Surf City
!-

DWQ USE ONLY
Date Received Fee Paid Permit Number
/.� l> 9 _SAS O°_���
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WO Mint Plan:
State of North Carolina
Department of Environment and Natural Reso
Division of Water Quality�►.T y`,
STORMWATER MANAGEMENT PERMIT APPLICATIOIQ%Ar* 2009
This form maybe photocopied for use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Town of Surf Citv
2. Location of Project (street address):
Surf City Community Center, 20�1 Community Center Drive
City:Surf City County:Pender Zip:28445
3. Directions to project (from nearest major intersection):
From intersection of HWY 50 and HWY 210, travel 0.7 miles south along HWY 50 and turn right onto .H.
Batts Road. Travel for 0.3 miles and take a right on Community Center Drive The project property is located
at the end of Community Center Drive.
4. Latitudc:34° 26' 31.14" N Longitude:77° 34' 2.04" W of the main entrance to the project.
II. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ❑New MMModificatiort
b. If this application is being submitted as the result of a modification to an existing permit, list the existing
permit numberSW8 050518 , its issue date (if known)8/20/2009 , and the status of
construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks, information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑LAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 5.05 ac of Disturbed Area
❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:Karen Beasley_ Sea Turtle Rescue and Rehabilitiaton Center, PENDE-
2010-006, November 19, 2009, Erosion and Sediment Control Permit
Form SWU-101 Version 07July2009 Page 1 of 6

III., CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/Organization:Town of Surf City
Signing Official & Title:T. Michael Moore Town Manager
b.Contact information for person listed in item la above:
Street Address:214 North New River Drive
City:Surf City State:NC Zip:28445
Mailing Address (if applicable):PO Box 2475
City:Surf City State:NC Zip:28445
Phone: (910 ) 328-4131 Fax: (910 ) 328-4132
Email:michael.moore®townofsurfcity.com
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b. Contad information for person listed in item 2a above:
Street Address:
City: State: Zip:
Mailing Address (if applicable):
City:
Phone: ( )
Email:
State: Zip:
Fax: ( )
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/Organization:
Signing Official & Title:
b.Contact information for person listed in item 3a above:
Mailing Address:
City:
Phone: L_
State: Zip:
Fax: ( )
Email:
Fonn SWU-101 Version 07July2009 Page 2 of 7

4. ,T ocal jurisdiction for building permits: Town of Surf City
Point of Contact:Todd Rademacher
IV. PROJECT INFORMATION
Phone #: (910 ) 328-3921
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
The permitmodification increases the drainage area to include runoff from the proposed Karen Beasley Sea
Turtle Rescue and Rehabilitation Center's Drainage Area 2. Runoff will be treated in the existing wet
detention pond -
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.Identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph 11- Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area: 22.12 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area+:22.12 acres
+ Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal HiRh Water (NHM line or Mean High Water
(MHM line, and coastal wetlands landward from the NHW (or MHi line. The resultant project area is used to
calculate overall percent built upon area (B LLA). Non -coastal wetlands landward of the NHW (or MHM line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 20.95 %
9. How many drainage areas does the project have?2 (For high density, count 1 for each proposed engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
Form SWU-101 Version 07July2009 Page 3 of 7

Rnh d
Basin Information
Drainage Area 1
Drainage Area 2
Drainage Area _
Drainage Area _
-Receiving Stream Name
ICWW
ICWW
Stream Class *
SA;HQW
SA/HQW
Stream Index Number *
18-87-(5.5)
18-87-(5.5)
Total Drainage Area (sf)
554,266
477,468
On -site Drainage Area (sf)
486,266
477,468
Off -site Drainage Area-(sf)
68,000
0
Proposed Impervious Area** s
51,851
0
% Impervious Area" total
33.7%
6.1%
Impervious' Surface Area
Drainage Area 1
Dramage Area 2
DramaLe Area _
Drainage Area _
On -site Buildings/Lots (sf)
On -site Streets (sf)
On -site Parking (sf)
On -site Sidewalks (sf)
Other on -site (sf)
Future (sf)
Off -site (so
51,851
Existing BUA*** (sf)
135,163
1 29,143
Total (sf):
187,014
1 29,143
* Stream Class and Index Number can be determined at: ht42://h2o.enr.state.nc.us/biros/report s/reportsWB.html
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
*** Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation. CAD delineated.
Please see Drainage Area Design Sheet in Supplemental Report Appendix.
Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCA C 02B . 0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from ho://h2o.enr.state.nc.us/su/bmg.forms.hbn.
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. A detailed application instruction sheet and BMP
checklists are available from h=:/ /h2o.enr.state.nc.us/su/bmp_ forms.htm. The complete application
package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating
project on the interactive online map ath!W://h2o.enr.state.nc.us/su/msi maps.htm.)
Please indicate that the following required information have been provided by initialing in the space provided for
each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for
each submitted application package from hU://h2o.enr.state.nc.us/su/bmp forms.htm.
tials
1. Original and one copy of the Stormwater Management Permit Application Form. CK
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants 'WA_
Form. (if required as per Part VII below) AY
3. OriginaI of the applicable Supplement Forms) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http: / /www.oyhelp.org/pages/onestopexpress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
Form SWU-101 Version 07July2009 Page 4 of 7

5. fA detailed narrative (one to two pages) describing the stormwater treatment/managementfor dr
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1h
mile radius on the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required). Aw
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x11" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHVVT prior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: 2415 Page No:162
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC A / A
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item 1a, 2a, and/or 3a per NCAC 2H.1003(e). The
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http://www.secretary.state.nc.us/Coil2orations/CSearch.aWx
/www secreta�state.nc.us/Colorations/CSearch.aWxx/ /www secreta�state.nc.us/Colorations/CSearch.aWxx
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http://h2o.enr.state.nc.us/su/bml2 state nc us/s��m�forms.htm#deed restrictions/�o enr state nc us/su�m�forms.htm#deed restrictions. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 NC DWQ and that they will be recorded prior to the sale of any lot.
Form SWU-101 Version 07July2009 Page 5 of 7

VII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer:Ted Burke
Consulting Firm: Cavanaugh & Associates, P.A.
Mailing Address:130 North Front Street, Suite 202
City:Wfhnington State:NC Zip:28401
Phone: (910 ) 392-4462 Fax: (910 ) 392-4612
Email:tburke®cavanaughsolutions.com
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
(print or type name of person listed in Contact Information, item 2a) , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
Iisted in Contact Information, item 1a) with (print or type name of organization listed in
Contact Information, item 1b) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: _ _ Date:
I, a Notary Public for the State of . County of
do hereby certify that personally appeared
before me this _ day of and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-101 Version 07Ju112009 Page 6 of 7

X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item 2) T. Michael Moore
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable stormwater rules under 15A NCAC 2H .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211.
Signature: 0"t i C-f-� Date:
I, -T ce C a Notary Public for the State of WAY0 /-vya--, County of
19 do hereby certify that �Jr 1 ✓ / iis�4d M6 &-4- personally appeared
before me this _�,_ day of -hot e-,n," 20d I, and aclSaWwledge the due execution of the application for
a stormw t°id9Tt�#,ness my hand and official seal,
SEAL
NOTARY =
i'0 1 D
u l . , i r�
.� ()
My commission expires
Form SWU-101 Version 07Ju1}2009 Page 7 of 7

Permit No.
(to be provided by DWiy
Contact person
Phone number
Date
Drainage area number
W AT �9
.y r
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part ill) must be printed, filled out and submitted along with all of the required Information.
_1
Surf City Community Park Permit Modification
Ted Burke
910-392-4462
1211/2009
S.C.C.P. DA# 1 +KBSTRRC DA#2
II. DESIGN 04FORMATION
She Characteristics
Drainage area
554,266 fe
Impervious area, post -development
187,014 1?
% impervious
33.74 %
Design rainfall depth
3.8 in
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5" runoff volume
Pre -development 1-yr, 24-hr runoff
Post -development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the prelpost control of the 1yr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall Intensity: 1 -yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
PrelPost 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pod elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 1 Oft vegetated shelf elevation
Bottom of 1 Oft vegetated shelf elevation
Sediment deanout, top elevation (bottom of pond)
Sediment deanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
fe
ft3
21,479 ft3
13,831 f?
53,743 ft3
39,912 ft?
60,689 ft9
Y (Y or N)
3.8 in
0.52 (unitless)
0,55 (unitless)
0.16 inlhr OK
0.92 its/sec
1.13 fP/sec
0.21 fe/sec
NO
26.00 fmsl
NIA fmsl
Ex fmsl
Ex fmsl Data not needed for calculation option #1, but OK if provided.
23.00 fmsl
22.00 fmsl Data not needed for calculation option #1, but OK if provided.
1.00 ft
N (Y or N)
26.5 fmsl OK
rorm SW401-Wet Detention Basin-Rev.8-9/17/09 Parts I. & II. Design Summary, Page 1 of 2

Permit No.
(to be provided by DWQ)
Ill. 17iOM WFOR IATION
Surface Areas
Area, temporary pool 122,128 ft?
Area REQUIRED, permanent pool 21,450 ft
SAIDA ratio 3.87 (uni less)
Area PROVIDED, permanent pool, Ap.,od 120,629 W OK
Area, bottom of 1 Oft vegetated shelf, AkUhelf Existing ft`
Area, sediment cleanout, top elevation (bottom of pond), Ab".d 73,767 ie
Volumes
Volume, temporary pool
60,689 fe
OK
Volume, permanent pool, VPUM-Pod
318,205 ft
Volume, forebay (sum of forebays if more than one forebay)
0 ft3
Forebay % of permanent pool volume
%
SAM Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
Y (Y or N)
Mountain/Piedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
3.87 (unitiess)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Y (Y or N)
Volume, permanent pool, Vpam,od
318,205 fe
Area provided, permanent pool, Apem pod
120,629 It'
Average depth calculated
2.64 ft
Need 3 ft min.
Average depth used in SAIDA, de„ (Round to nearest 0.5ft)
3.0 ft
Insufficient. Check calculation.
Calculation option 2 used? (See Figure 10-2b)
N (Y or N)
Area provided, permanent pool, A,e n,,d
120,629 ft
Area, bottom of 1 Oft vegetated shelf, Abm he
Existing W
Area, sediment cleanout, top elevation (bottom of pond), AboLpood
73,767 fe
"Depth' (distance blw bottom of 1 Oft shelf and top of sediment)
#VALUEI ft
Average depth calculated
It
Average depth used in SAIDA, d. (Round to nearest 0.5ft)
ft
Drawdown Calculations
Drawdown through orifice?
N (Y or N)
Diameter of orifice (If circular)
in
Area of orifice (If -non -circular)
in'
Coefficient of discharge (Co)
(unitless)
Driving head (Ho)
ft
Drawdown through weir?
Y (Y or N)
Weir type
Rectangular (unitless)
Coefficient of discharge (Cj
3 (unifless)
Length of weir (L)
1 ft
Driving head (H)
0.5 It
Pre -development 1-yr, 24-hr peak flow
0.92 ft /sec
Post -development 1-yr, 24-hr peak flow
1.13 ielsec
Storage volume discharge rate (through discharge orifice or weir)
0.20 fe/sec
Storage volume drawdown time
3.05 days
OK draws down In 2-5 days.
Additional Information
Vegetated side slopes
Existing :1
OK
Vegetated shelf slope
Existing :1
OK
Vegetated shelf width
Existing It
OK
Length of flowpath to width ratio
Existing :1
OK
Length to width ratio
Existing :1
OK
Trash rack for overflow & orifice?
Y (Y or N)
OK
Freeboard provided
2.5 ft
OK
Vegetated filter provided?
Existing (Y or N)
OK
Recorded drainage easement provided?
Existing (Y or N)
OK
Capures all runoff at ultimate build -out?
Y (Y or N)
OK
Drain mechanism for maintenance or emergencies is:
Portable Submersible Pump
Forth SW401-Wet Detention Basin-Rev.8-9/17/09 Parts I. & II. Design Summary, Page 2 of 2

Permit Number: ----5A),Fzg 0
(to be provided by DWQ)
Drainage Area Number: 2
Wet Detention Basin 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 BUT 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.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided. "J
C3 11
This system (check one): r
❑ does ® does not incorporate a vegetated filter at the outlet.
� H
This system (check one): N
0
❑ does ® does not incorporate pretreatment other than a forebay.
V
Important maintenance procedures:
- Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
- No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
- Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
- Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected 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 should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/ debris is present.
Remove the trash/ debris.
The perimeter of the wet
detention basin
Areas of bare soil and/or
erosive gullies have formed.
Regrade the soil if necessary to
I remove the gully, and then plant a
I
grot d. cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Vegetation is too short or too
Maintain vegetation at a height of
long.
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number: 2
)IMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
' sediment off -site.
The pipe is cracked or
j Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
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. If pesticide is used, wipe it on
_
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
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.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping them
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number: 2
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(fill in the blanks)
0 Permanent Pool Elevation 26.00
N/A Pe anen Pool
- - - - - - - - - - - - - - Volume Sediment Removal Elevation 23.0 Volume
N/A ft Min.
-----------------------------------------I---
---
Sediment Bottom Elevation 22.0 1-ft
Storage Sedimei
Storage
FOREBAV MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.4 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: Surf City Community Park
BAP drainage area number:2
Print name:J. Michael Moore
Title:Town Manager
Address:214 N New River Drive Surf City NC 28445
Phone:[phone]
S
rk
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, _J0 rv-t l3 k".1ex , a Notary Public for the State of
� n
,/Ild�dr�dC Am,, County of P� v , do hereby certify that
T M11e- " lydrrt- personally appeared before me this 3 4-/
day of `Do e-i ro 6,41 d I , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
`````\� • 1
J
NOTARY
PUBLIC v
zzm COON4
In 111111
SEAL
My commission expires IdP1/4, /J
Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4

Name:
'roject Received
?roject Location:
Reviewer: Date:
A e ted/Re'ected circle one
Ad Info required ( /no), Date receive
%/ i Symbols for completing form: '✓'= Yes/OK• ' x'= No/Deficient• 'n/a' or 'V or '/'
Rulefs)>upject (check -all that apply):
Er 1995 Coastal (019%�%vckk) k'2008 Coastal 0*V. *0 4 ❑ Phase II ❑ Universal
Paperwork: ` %5 Mop)
El' Check for $505 (must be no older than 6 months)
❑application form with correct/original signatures (original plus 1 copy). If Corporation or LLC also:
,e­'"P int the info from the NCSOS
ther, 1.) The applicant is listed on the•NC'SOS withshis/her correct title or, 2.) A nofarized letter of
�, authorization has been provided:
V Supplements (1 original per BMP). BMP type(s): Vnims)
N&M with correct/original signatures (1 original per BMP, except level spreaders/filter strips and swales)
eed restrictions (if outparcel or subdividing) (original plus 1 copy)
o Deed restriction template (signed and notarized) or
o Proposed Declaration of Covenants and -Restrictions (signed and notarized). Q a4�ms,j
ils report identifying the SHWT 0*i E Wvaa WO`g atV1QQ t,`I1t7 lE
S� S� pporting calculations, signed &sealed (if necessary) C� $)a0 joG1: a 4004M
C f�eceiving stream -classification: fkC� N , If SA or.ORW.also: q ha foS a5 �'mfs
o - SA: USGS topo map with the site, the receiving waters and the % mile radius shown to scale.
o.. _ORW.- 575 ft of MHWL for Area of Environmental Concern and max BUA per rule..
-❑ Modifications: -1.) If built: Designer's Cert., 2.) If partial built: Partial Cert., 3.) If not built: No Cert. needed.
Development Type (check all that apply):
® Residential or 14169mmercial ❑ Deed restrictions match?
® Subdivision or Single Lot 13 Deed restrictions match?
L High Density or D Low Density © Deed restrictions match?
❑ Offsite project ❑ Redevelopment Modification 050E 1$ ❑! Exempt
W❑ NCG02 (bulkhead) ❑ NCG03 (clear/grade) © NCG04 (linear)
Dens�ity://
BVBUA calculations include common areas, clubhouse, sidewalks, etc_
BUA %: 2bo45 , Matches high/low density requirement for rule and receiving stream class.
W No obvious math errors
V If High Density: Design storm correct for rule and receiving stream class.
A ans, signed and sealed (2 sets):
�e 13 Two sets received 13 Layout (with proposed BUA dimensions)
® Grading © Drainage area map (all HD systems & curb outlet swales) DA Mq� , C, 0
'`W'•i� f�/icinity neap I2 Prgwj ct � d
• � �..,e�� noun cries Q Legend
Wetlands:
o Delineated on plans o "No wetlands onsite" on plans
B Details:
o Roads o Cul-de-sacs o Curbing o Sidewalk
o BMPs/ Level spreaders/ Filter strips/ Curb outlet swales o Buildings (Apts or Condos)
Offsite Projects:
® Designer's Certification has been submitted for the Offsite BMP receiving the runoff from the project.
® Dee strictions have been recorded and a copy submitted for the Offsite BMP permit.
® size has not changed from what was approved under the Master Plan.
Correct lot number is referenced on the supplement form.
® 1fsite system is in compliance with its permit, if known.
/ ® Soils report: SHWT, soil type, and expected infiltration rate are provided.
❑ DW(J has conducted a site visit? Date:
Wet Ponds: Permanent Pool Meets One of the Following:
❑ Is located no lower than 6" below the estimated SHWT.
104-% ❑ Incoming groundwater is quantified and evaluated, AND Storage volume verified, AND Outlet evaluated for free
drainage to the receiving waters under SHWT conditions.
Decision (check one):
❑ Complete: Return file to admin (Jo Casmer) to log in. (Stamped in received date = BIMS date)
❑ Slightly incomplete: E-mail consultant, request information to be returned within one business day (24 hours after
request. Info requests on Friday, allow a return on the following business day). If info not returned; issue an
application return letter and give everything to admin. (Add info received date = BIMS date)
® Substantially incomplete: Issue an application return letter and give everything to admin.

I An
p .l NcQ SE w ' (o
oD
lab tool
1?epL%.1-1
"
• B�'Pc� 1.5------------
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SW8 050518 Modification
Surf City Community Park & Recreation Center
15 December 2008
Meeting with DENR (K. Johnson)/Cavanaugh Engineering
1. Adding ball fields, two parking lots, sidewalks, and small buildings
(concession/restrooms) to an existing recreation center.
2. Two parking lots
a. One will drain to the existing pond.
b. One will not. But, it will sheet flow at least 30 ft to the ditch (2008
Coastal rule, 30ft buffer to waters of state, redevelopment) No wetlands
onsite.
3. Application:
a. Four drainage areas:
i. Whole project: Must be <25% (pre-2008 Coastal Rules, SA water)
ii. New area of project: Must be <12% BUA (2008 Coastal Rules,
SA water). (Note: Area previously counted as draining to the pond
will be excluded.)
iii. Pond: All area that will go to the pond in the new proposal,
including the proposed parking lot nearest the pond. (This is the
larger lot.)
iv. Non -Pond: All "new" area that is counted in the proposal towards
the <12% BUA. (Note: The green area in the previously -
permitted section will not be counted towards the 12% because it is
already counted as draining to the pond).
b. Calculations/supplement sheets
i. Wet pond: Will show that the pond can hold the additional water
from the proposed parking lot and still be designed according to
DENR requirements.
I Any other BMP data that will be used such as level spreader
calculations.

SURF CITY COMMUNITY PARK
r3�
TOWN OFF SURF CI 9
NORTH CARE?LINA
'ORMWATER MANAGEMENT
APPLICATION
SUPPLEMENTAL REPORT
December 1, 2009
h
AVA to A U G H1
So udws thrrwgh 9 gnLy and pantnefship
Q�
We provide superior client service and environmentally sound
designs through integrity, communication, and partnership..
Consulting Engineers
Environmental Professionals
Land Surveyors
Design Professionals
130 N. Front Street, Suite 202, Wilmington. Worth Onroiif a 2801, Phone [phone], Fax [phone]

TABLE OF CONTENTS
PAGE
I. SITE DESCRIPTION 2
II. PROJECT DESCRIPTION 3
ill. STORMWATER MANAGEMENT PLAN 3
IV. EROSION AND SEDIMENTATION 3
CONTROL (ESC) STRATEGY
V. CONSTRUCTION SCHEDULE 4
VI. VEGETATION PLAN
APPENDIX
A- Site Location Map
B- Watershed Classification
C- Existing Stormwater Management Permit
D- Drainage Area Design Sheets
E- Wet Detention Pond Calculations
F- NOAA Rainfall Data
Surf City Community Park 4
Stormwater Management High Density Permit Modification Application

Surf City Community Park
Site Description
The subject project, formally identified as the Surf City Community Park, is
located in the Town of Surf City, Pender County, North Carolina. The
approximately 23 acre property has frontage along J.H. Batts Road and
Community Center Drive. Please reference the attached site location map
located in Appendix A of this report.
The property is currently used as the Surf City Community Center. There are no
404 jurisdictional wetlands located on the property as confirmed by an
environmental consultant and verified by the United States Army Corps of
Engineers (USACE) on November 11, 2004.
The property can be described as mildly sloping, with an average slope of
approximately 2.0-5.0%. The site has a capped solid waste dump that is
approximately 6.5 acres and is located in the center of the property. The
capped site was recently converted into ball fields to expand the community
park's features. The capped dump is an elevated area on the property that
simulates a plateau. The dump has side slopes approaching 3:1. The top of the
landfill is relatively flat and is approximately 12 to 15-ft higher than the
surrounding property. The elevations throughout the property range from 19 ft
mean sea level (MSL) near the frontage of the property on Community Center
Drive to 42 ft MSL at the top of the capped landfill.
The site currently has two drainage areas. Drainage Area 1 (SCDA1) uses a wet
detention basin to treat runoff. The wet detention basin has an approximate
surface area of 2 acres. The basin has a 3-ft permanent pool and discharges the
storm event into an existing drainage ditch along the western boundary of the
property. This drainage ditch ultimately discharges to Becky's Creek and
Topsail Sound. The maximum pool level of the pond is approximately six (6)
feet and is capable of detaining approximately 359,704 cubic feet of stormwater
runoff. Becky's Creek and Topsail Sound have a watershed classification of
SA;HQW. Please see the watershed classification for the site in Appendix B of
this report.
Drainage Area 2 (SCDA2) uses a level spreader and filter strip to manage
stormwater runoff. At approximately 7%, SCDA2 has a very low percentage of
Built Upon Area (BUA). The level spreader and filter strip primarily manage
runoff from the smaller parking lot on the site.
Surf City Community Park 2
Stormwater Management High Density Permit Modification Application

Project Description
The purpose of this modification is to accept the stormwater runoff from a new
project located on an adjacent property. The project, which has submitted its
own stormwater management permit (currently under review) is the Karen
Beasley Sea Turtle Rescue and Rehabilitation Center (KBSTRRC). KBSTRRC
will also have two drainage areas. The first drainage area will utilize a
constructed wetland to manage stormwater runoff. The second drainage area
will convey stormwater runoff to the Surf City Community Pond for treatment.
Stormwater Management Plan
KBSTRRC's Drainage Area 2 is approximately 1.56 acres. KBSTRRC DA2 has
no existing impervious surfaces and has a C-va u`�` e` o ..35. This phase of
development incorporates 51�85i1-ft_of impervious area, as described in the
Drainage Area Design Sheet found in the Appendices. The calculated
impervious percentage for DA2 will thus be 7.63
The runoff from KBSTRRC DA2 will be collected and conveyed to the Town of
Surf City Community Center wet detention pond for treatment. The Surf City
Community Center wet detention pond is currently permitted under SW8 050518
Modification.
KBSTRRC DA2 was added to the permitted conditions to determine the
characteristics of the complete drainage area contributing to the wet pond.
Please refer to Drainage Area Design Sheet p_g X. The addition of the KBSTRRC
DA 2 to SCDA1 combines to modify the percent BUA from 27.8% to 33.7%.
The new required treatment volume was then calculated based upon the
combined areas. The new treatment volume was determined to be 53,743-ft3.
The stage storage calculations, found on the Wet Detention Pond Design Sheet,
show that the new elevation of the treatment volume is 26.44-ft MSL. With the
permanent pool set at 26.0 MSL, and the riser at 26.50, the effective rise is 0.50-
ft. The new bleed down time was checked using the existing bleed down orifice
and was found to be 8.7 days. Since this is outside the required range, the weir
will be widened from 0.35-ft to 1.0-ft. A 1.0-ft weir provides a new bleed down
time of 3.05 days, which is between the required 2-5 day range.
Erosion and Sedimentation Control (ESC) Stratea
The Karen Beasley Sea Turtle Rescue and Rehabilitation Center will implement
several NCDENR approved erosion control methods to stabilize the area within
the LOD of this project during construction. A temporary sediment trap will be
used to manage the construction runoff from the western drainage area. This
drainage area is approximately 2.33 acres. The temporary sediment trap will be
Surf City Community Park 1%' 165 (D : P A 1 3
Stormwater Management High Density Permit Modification Application r 1 AAA _ �4 r D

converted into the stormwater management wetland during the course of
construction. Sediment will be removed from the constructed wetland prior to
the completion of the project.
This project will also utilize approximately 3,442 LF of sediment fence to manage
approximately 5.05 acres of disturbed area. The NCDENR Erosion and
Sediment Control Planning and Design Manual states that 100 LF of sediment
fence is required to properly manage 0.25 acres of disturbed area. This
translates to 400 LF per acre. This project would therefore require a minimum of
(400 LF/ac) x (5.05 ac) = 2,020 LF of silt fence. With 3,330 LF being used on
this project, we should be well within the effective limits of the sediment fence.
Construction Schedule
1. Obtain plan approvals and all applicable permits.
2. Perform the construction stake out.
3. Hold the pre -construction meeting.
4. Install temporary gravel construction entrance.
5. Clear site, but do not grub.
6. Install sediment fence, sediment fence outlets, and rock check dams and
construct temporary sediment trap.
7. Grub site, as necessary.
8. Commence rough grading of the site.
9. Rough grade the site.
10. Commence construction of building.
11. Install stormwater management devices.
12. Install block and gravel inlet protection.
13. Construct sewer collection system.
14. Construct water system.
15. Complete rough grading of the site.
16. Shape shoulders and cut and fill slopes.
17. Scarify, seed, fertilize, and mulch all disturbed areas.
18. Install dry utilities (electrical, fiber-optic, cable, phone, etc.).
19. Re -scarify, re -seed, re -fertilize, and mulch all disturbed areas.
20. After disturbed areas are stabilized with vegetation, the contractor shall
return to the site and remove all temporary erosion control measures.
Vegetation Plan
1. The contractor shall provide seeding and mulching on all disturbed
areas within 15 working days following the completion of any phase of
grading.
2. Seeding requirements shall include soil preparation, seed mixtures, and
mulching.
Surf City Community Park 4
Stormwater Management High Density Permit Modification Application

Appendix A
Site Location Map
Surf City Community Park
Stormwater Management High Density Permit Application

VICINITY MAPS
NOT TO SCALE

Appendix B
Watershed Classification
Surf City Community Park
Stormwater Management High Density Permit Application

SURF CITY
COMMUNITY PARK
PENDER COUNTY
NORTH CAROLINA
�i: � v� ��Y fia� a � �' •� � ; r f � ak
.rY7I4i� aASs'
API'RCDX. PROJECT' '. x Y; } .�'7• r , S y°'F'� :
' NC HIGHWAYS 210/50
LOCATION-,
.' +$r � � R���,�P�' � : 11�' ' a �fV" Y,i ^�' •,•^ � � 'rf'. •47 � -�� � •; �J+ p� �
ATE
' :i�YT � i Y�� � ��1 ' {�i t;'' �� YP b'k � ry i• 1 � �;`. a' `.
v
e.
•ar •.r a °"L F.�.iy.�_.� ^ r4 ` ".,y`:.•• • .d i t ` �S� , +f
J.
.f1,�f�J.H. BATTS ROAD
,, ,. f•` kM`fI S.R.1612
+,� r { s✓ s. •,c i Sri' _ ,, t �f ,� ♦ • �t _.
+ f ?Sr.'s'"• .`i �"+•v e}wrt'y ram'" �s Kr •'A r .r T.5 A r 1 /
": Fr Ja .�.►R ` ;; x ° .7 .� j � } ti+1r se w�5 at . '!�,\w M( ++f
SricJ�{t x. + zt y i• iZ r P •+. E y r. yy, +
1
7� ar ! -� *.r3�7 4. t Y f 's' r+51 » „in V • �R * *� 1_ �� . • r I,
+mod 1<<rQ ... + �SR14R""x x
•+ ' P . �. r _+�r•` rF jpc C 1t -
LIGHT
t, �?.:���:• n;"A ,�,,,,R� i� �y,��p(ypyy��p}yfisr� \ a_, ' J .-„.�r•� � 1:'�`V� ��•.,�*,
,c3.' L A CY4XI�4'!2 ` . . -' • I ems. 9 �� "h . _ RAi .�' ♦ �..
jjd.
PROJECT INFORMATION LOCATION
SURF CITY COMMUNITY PARK
LATITUDE: 340 26' 23.35"N
LONGITUDE: 770 33' 52.63" W NOT TO SCALE
QUAD: HOLLY RIDGE
RECEIVING
STREAM
STREAM
STREAM
CLASS
BASIN
INDEX
1
INTRACOASTAL
WATERWAY
SA; HQW
CAPE FEAR
18-87-(5.5)
SITE PREVIOUSLY PERMITTED UNDER PERMIT # SW8050518
CAVANAUGH
Solutions through integrity and partnership
marwphd AuOeYba,PA/90 NorN FIOrM51es4 SWb PO;"A/�yNC PBIOf "10/8AQ11BY hr.•B10/3BY-101P xuvrara�aupMa9Nareaom

Permit No.
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
WATER QUALITY CLASSIFICATION REQUEST FORM
This fora may be photocopied for use as an original.
I. PROJECT INFORMATION
In order to determine the receiving stream for a project in a coastal county or whether a State
Stormwater Management Permit will be required for a project in a non -coastal county, the
classification of the closest downslope surface waters (the surface waters that any sheet flow or
overflow from the project would flow toward) must be determined. Please complete Sections I and II
below. DQW Staff will determine the receiving stream classification, complete Section III, and return
the completed form to you.
Project Name: Surf City Community Park County: Pender
2.. Contact Person: Everett Gupton
3. Mailing Address: 130 North Front Street, Suite 202
4. City Wilmington State NC Zip 28401 Phone No. 910-392-4462
5. Name of closest downslope surface waters: Intracoastal Waterway
6. Signature of contact person:- A - 9_Z77� Date: 0�
7. Is a Sedimentation Erosion Control Plan or a CAMA Major Permit required? ®YES ❑NO
II. REQUIRED ITEMS
An 8.5" x 11" copy of the appropriate portion of a USGS quad sheet showing the projects
property boundaries, receiving stream, major roads or State Roads numbers, and nearest
town or city must be attached.
III. CLASSIFICATION REQUEST (To be completed by Regional Office personnel)
1. Name of surface waters:__
' r
2. River Basin: � u�O2 ��a Index No.
3. Classification (as established by the EMC): .S'A a H OW
4. Proposed Classification, if applicable: -
5: State Stormwater Management Permit required? Lv-(YES ❑NO
6. Signature of Regional Office personnel: _ ,*T; i'Fr Date
cc: DWQ - Regional Office
Consultant
Building inspector
Central Files
Form SWU-111 Version 10.99

Class
Description Class Date
SA;ORW 01/01/90 18-87-0.5
SA;ORW O1/01/90 18-87-1
Waterway
SA;ORW O1/01/90 18-87-2
SA;ORW O1/01/90 18-87-3
SC; Sw,HQW 08/01/90 18-87-4
SA;HQW
08/09/81
18-87-5
Waterway
■AAI■■■■■1311IMaMnaIg■■■■vwee■anrnrnrr^■■■■■■■!■■■■i"[!l
PPrrrn■■i■■■■■♦
Intracoastal Waterway
From Morris Landing to the
SA;HQW
08/09/81
18-87-(5.5) ■
i
eastern mouth of Old
■
*
Topsail Creek
SA;HQW
08/09/81
18-87-6
Creek)
Waterway
SA;HQW
08/09/81
18-87-6-1
Creek
SA;HQW
08/09/81
18-87-6-2
Creek
SA;HQW
O8/09/81
18-87-7
Waterway
SA;HQW
O8/09/81
18-87-8
Waterway
61

Appendix C
Existing Stormwater
Management Permit
Surf City Community Park
Stormwater Management High Density Permit Application

WDERR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
August 20, 2009
Mr. J. Michael Moore, Town Manager
Town of Surf City
214 N. New River Drive
Surf City, NC 28445
Subject: Stormwater Permit -No. SW8 050518 Modification
Surf City Community Park and Recreation Center
High Density Project
Ponder County
Dear Mr. Moore:
Dee Freeman
Secretary
The Wilmington Regional Office received a complete Stormwater Management Permit
Application for Surf City Community Park and Recreation Center on August 13, 2009.
Staff review of the plans and specifications has determined that the project, as
proposed, will compl with the Stormwater Regulations set forth in SL2008-211 and
Title 15A NCAC 2H.1000, effective September 1, 1995. We are forwarding Permit No.
SW8 050518 dated August 20, 2009, for the construction of the subject project.
This permit shall be effective from the date of issuance until September -i 3, 2015, 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 Kelly Johnson, or me at [phone].
Sincerely,
c
Georgett`4Scott
Stormwater Supervisor
Division of Water Quality
GDS/kpj: u',V�'QS;STORMWATERIPERMIT1450518MOD.aug09
cc: Ted Burke, PE, Cavenaugh and Associates
Pender County Planning Department
Wilmington Regional Office Stormwater File
Central Files
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Rhona: 910 796.72151 FAX: [phone] Customer Servke; 1-877-62M748 N rthCarol1na.
fnlemet: wvm.ncwalerquality:org
M Equal Oppmoinilyt AfrKmafwe k on Emp*er

State Stormwater Management Systems
Permit No. SW8 050518
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
J. Michael Moore and the Town of Surf City
Surf City Community Park and Recreation Center
201 Community Center Drive, Surf City, Pender County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of SL2008-211 and 15A NCAC 2H .1000, effective September 1, 1995
(hereafter collectively and separately 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 September 13, 2015, and
shall be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 135,163 square feet of
impervious area in a drainage area of 486,266 square feet (the "High Density
Tract'). The remaining project area of 477,468 square feet (the "Low Density
Tract") must be maintained at 12% built -upon area or less, as required by
Section .1005 of the stormwater rules. The overall built -upon area for both tracts
combined must be maintained at 25% or less.
3. The High Density Tract vtili Ue rimited to the amount of built -upon area indicated
on page 3 of this permit, and per approved plans. There is no allotment for future
built -upon area.
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.

State Stormwater Management Systems
Permit No. SW8 050518
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
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 times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter_
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging, of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon
request to authorized personnel of DWQ. The records will indicate the date,
activity, name of person performing the work and what actions were taken.
5. Decorative spray fountains will be allowed in the stormwater treatment system,
subject to the following criteria:
a. The fountain must draw its water from less than 2' below the permanent
pool surface.
a. Separated units, where the nozzle, pump and intake are connected by
tubing, may be used only if they draw water from the surface in the
deepest part of the pond.
b. The falling water from the fountain must be centered in the pond, away
from the shoreline.
C. The maximum horsepower for a fountain in this pond is 314 horsepower.
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other
supporting data.
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.

State Stormwater Management Systems
Permit No. SW8 050518
Ill. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
in the event of a change of ownership, or a mailing address change, or a name
change of the permittee or project, the permittee must submit a completed and
signed name/ownership change form to the Division of Water Quality,
accompanied by the required documentation as listed on the form. The approval
of this request will be considered on its merits and may or may not be approved.
The permittee is responsible for compliance with all permit conditions until such
time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water, Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. in the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5, The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing. of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
10. The permittee shall submit a permit renewal application at least 180 days prior to
the expiration date of this permit. The renewal request must include the
appropriate documentation and the processing fee.
Permit issued this the 20th day of August 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for eoleeh Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

State Stormwater Management Systems
Permit No. SW8 050518
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.
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
Pender County Planning Department

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
-.rlp41" 100 �6M I/
// •49
State of North Carolina
Department of Environment and Natural resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION IPW
films form :parry be photocopied for use as an origi?tol
I. GENERAL INFORMATION f r ZOOS
ji
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
Town of Surf City
2. Print Owner/Signing Official's name and title (person legally responsible foi facility and compliance):
I. Michael Moore, Town Manager
3. Mailing Address for person listed in item 2 above:
P.O. Box 2475
City:Surf 01Y State:NC Zip:28445
Phone: (910 ) 328-4131 Fax: JL10 328-4132
Emafl:michael.moore@toi%,nofsurfciiy.com
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
Surf City Community Park
5. Location of Project (street address):
Surf City Community Center, 201 Community Center Drive
City -Surf Cily County.Pender Zip:28445
6. Directions to project (from nearest major intersection):
From intersection of Hwys 50 and 210, head towards the beach, turn right onto T H Batts Road Take another
right onto Community Center Drive
7. Latitude:34026' 26" N Longitude:77 33' 55" W of project
8, Contact person who can answer questions about the project:
Name:Ted Burke Telephone Number: :910 ) 392-4462
Imaii:tburke*cavanaughsolutions.com
IL PERMIT INFORMATION:
1. Specify whether project is (check one): New ❑Renewal RModification
Farm SNVU-101 Version 09.25.09 Page 1 of 4

**Total project area shall be calculated to exclude Coastal Wetlands front use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived?CAD generated, Excel tabulated
Projects in Union County: Contact the DW0 Central Ofce staff to check to see ifl-ou project is located
w1thin a Areatened & Endangered Species watershed that may be subject to more stringent stormis ater
requirements.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following property restrictions and protective covenants are required to be recorded for all
subdivisions, outparceis 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.
Forms can be downloaded from htt2://h2o.enr.state.nc.us/su/bmp fonms.htm - deed restrictions.
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 property 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 NC DWQ 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 Permitting Unit at :[phone] for the status and
availability of these forms. Forms can be downloaded from htW.-//h2o.enr.state.ne.us/su/bml2 forms hum.
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 S1V401-Grassed Swale
Form SW401-6and Filter
Form.SW401-Permeable Pavement
Form SW401-Cistern
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
Permeable: Pavement. Supplement
Cistern Supplement
Form SWU-I01 Version 09.25,08 Page of

Permit Now- ='7J/ V 5015 / 6
fto be PmWded by. DWQ}
"tf OT W A2]Fo
ja
�R
STORMINATER MANAGEMENT PERMIT APPLICATION FORM -
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
Thr's form mum be filled m printed and submitted.
The Regtared Items Checklist (Paid A# must be printed, lilted out and submitted almg Oth 8110fth.0 tegukedinfofirratrwr.
I. PROJECT INFOWATION
Project name Surf City Community Park
Contact person Ted Burke
Phone number 910-3924462
Date
Drainage area number
R. Disw INFORtmiam
Site Characteristics
Drainage area
Impervious area, post -development
% impervious
Design rainfall depth
Storage Volume: Non -SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.6' runoff volume
Pre -development 1-yr, 24-hrrunoff
Post -development 1-yr, 24-hrrunoff
Minimum volume required
Volume provided
Peak Flow. Calculations
is the prelpost control of the lyr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre-devefopment
Rational C, post -development
Rainfall Intensity.1-yr, 24•hrstorm
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peals Bow
Pre/Post 1-yr, 24-hrpeak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm pod elevation)
Top of 10R vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment deanout, top elevation (bottom of pond)
Sediment deanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state -required temp. pool?
Elevation of the top of the additional volume
23-Jun-09
1
486.286 f?
135,163 fe
27.80 %
3.8 in
18,245 fe
13,831 fe #REFI
45,612 fe #REFI
31.781 Rl
45,6113 ft'
Y (Y or N)
3.8 in
0.47 (unitiess)
0.52 (unfttess)
0.16 inlhr
OK
0.85 felsec
0.92 felaw
0.07 Osec
f
26.37 finial
26.00 final
NfA fmsl
Ex fmsl
Ex fmsl
(Data not needed for calculation option #1, but OK If provided.
23.00 fmst
22.00 fmst.
Data not needed for calculation option #1, but OK ti provided.
1.00 R
Y (Y or N)
26A fmsl
OK
Form SW401-Wet Detention BasinRev.6-=00 Parts I. & II. Design summary, Page I or 2

j Y
PermitNumber:
(to be provided by DWQ)
Drainage Area Number:
Vet Detention Basin 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 integrityi. t
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided. ­ 4
This system (elieck one):
❑ does ® does not incorporate a vegetated filter at the outlet.
Y'
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
- Immediately after the wet detention basin is established, the plants on the
vegetated.shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
-- No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
- Croce a year, a dam safety expert should inspect kite embankment,
After the wet detention pond is established, it should be inspected 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 should be kept in a known set
location and must be available upon request,
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
Blvd? element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash debris is present.
Remove the trash debris.
The perimeter of the wet
,Areas of bare soil and/or
Regrade the soil if necessary to
detention basui
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.
rVegetation is too short or too
Maintain vegetation at a height of
,
approximately six inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4

Permit Number:
(to be provided by Dif'Q)
Drainage Area Number:
BMP element:
Potentialproblem;
How UM remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to .remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A. tree has started to grow on
Consult a dam safety specialist to
the embankment
remove the tree.
An annual inspection by an
Make all needed repairs,
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919-733-
1786.
The measuring device used to determine the sediment elevation shalt be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 23.0 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads -NIA feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom Ele
BASIN DIAGRAM
(fill in the blanks)
NZA Pe anen
-- - ------ Volume
N/A -il lviiiu.
Sediment
Storage
FOREBAY
Permanent Pool Elevation 26.0
Pool
Sediment Removal Elevation 3�.� ............ Volume,
Bottum Elevation
MA1N BOND
1-ft
Storage
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 .of 4

6
A 0 A �
WLENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely tilled out, printed and subnatted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEE i)i
i. PROACT INFORMATION
Project name Surf Ckty Community Park
Contact name Ted Burke
Phone number 910-392-4462
Date May #, 2009
Drainage area number 2-Parking Lot Sub -Drainage Area
!). DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP NA
Drawdown Row from the BMP cis
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flour from the 1 inlhr storm
Time of concentration
Rainfall Intensity, 10•yf storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a grassed btoretention cell?
To a mulched bioretention cell?
To a. wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization Of applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level Ilp
Elevation at top of bank of the receiving water
Slope (from level Up to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level RP needed per cfs
Answer °Y" to one of the following:
Length based on the 1 !Whr storm?
Lerigth based on the 110-yrstorm?
Length based on the EMP discharge rate?
Design Now
Is a bypass device provided?
48,608.05 fe
17,811.00 ft`
36.65 %
0.47
0.52 cis
10.00 min
6.80 irdhr
3.57 cis
N
(Y or N)
N
(Y or N)
N
(Y or N)
Y
(Y or N) Please comi1ete iller sUip characierizatlar ba!ou.
See Below
50.00
it
0.00
ft
0.00
ft
50.00
ft
21.00
fmsl
19.38
fmsl
3.25
% OK
N
(Y or N) OK
97.20 sq ft nK
13 filcis
Y
(Y or N)
Y
(Y or N)
N
(Y or N)
3.67
cis
N
(Y or N)
A bypass device is not needed.
Form S4A'401-Leval Spreader, Finer Strip, Restored Riparian Surfer-Rev.5 Parts 1. end it Design Summary, page 1 of 2

Permit Number: J/U, � ���"/
(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
(NJPC-1993). Forested filter strips do not require this hype 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
(if applicable)
The flow splitter device is
clogged..
Unclog the conveyance and dispose
of any sediment off -site.
The flow splitter device is
Make any necessary repairs or
damaged,
replace if damage is too large for
repair.
i 4'Y 2009
Form SWU401 -Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev3

Permit Number:
(to be provided by D IVO)
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 nante:Surf City Community Park
AVP drainage area number .2 - Sub -Drainage Area
Print name:J. Michael Moore
Title:Town Manager
Address:P.O. Box 2475
Plione:910-328-4132
Signature: " ' (d-�-�.
Date: v 5- lit 0 9
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, _ _ Q WC, 8 1<(Jet, , a Notary Public for the State of
r/t etg/..j,' County of , do hereby certify that
,1 CIO, jVa,'-e- personally appeared before me this Iq
day of M&? Z , 2ed , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my_hand and official seal,
NOTARY
0
PUBLIC C
My commission expires l o b-,( /5-y
Form S WU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3

Appendix D
Drainage Area Design Sheets
Sun` City Community Park
Stormwater Management High Density Permit Application

DRAINAGE AREA DESIGN SHEET
DATE: December 1, 2009 SHEET 1 OF 1
PROJECT: Surf City Community Park+ KBSTRRC DESIGN BY: ERB
PROJECT NO.: 041.08.015 + 41.08.016 CHECKED BY: ERB
DESCRIPTION: Surf City Communitv Park DA 1 + KBSTRRC DA 2
Pre Development
Tnfal Aron
Pre -development
c
A ()
A (ac)
t
Buildings
0.95
19,128
0.44
2
Street
0.95
35,620
0.82
3
Parking
0.95
56,744
1.30
4
Sidewalk
0.95
9,529
0.22
5
Other Tennis Courts
0.95
14,142
0.32
6
Wooded, sparse
round litter
0.35
351.103
8.06
Weighted C
0.52
Total Area
486,266
11.16
Impervious Area
135,163
3.10
Percent Impervious 27.8%
Post Development
Total Area
Post Develo meat
c
A (re)
A (aC)
1
Existing BUA
0.95
135,163
3.1.0
2
KBSTRRC
2a
Building
0.95
25,400
0.58
2b
As halUGravel
0.95
21,356
0.49
2C
Sidewalk
0.95
4,903
0.11
2d
Dum ster Pad
0.95
1 192
0.00
6
Wooded, sparse
round litter
0.35
367,252
8.43
Wel hted C
0.55
Total Area acres
554,266
12.72
Impervious Area
187,014
1 4.29
Percent Impervious 33.7%

Appendix E
Wet Detention Pond Calculations
Surf City Community Park
Stormwater Management High Density Permit Application

WET DETENTION POND DESIGN SHEET
DATE: December 1, 2009 SHEET 1 OF 1
PROJECT: Surf City Community Park+ KBSTRRC
PROJECT NO.: 041.08.015 + 41.08.016
DESCRIPTION: Wet Detention Pond Design
Determination of Pond Geometry
Perm. Pool Depth= 3.5 ft.
DA 554,266 ft2 Drainage Area
SA/DAtrev= 3.67% Ratio for Permanent Pool Sizing
SArey.= 21,473 e
Volume Runoff to be Controlled From 3.75" Storm (1-YR 24-HR)
Rv=0.05+0.009(I) (Simple Method, Scheuler)
1= 34%
Percent Impervious
Rv= 0.35
Runoff Coefficlent
V=P*Rv*Ad
P= 3.75
in Design Rainfall
V= 1.234
ao-ft
V= 53,743
ft3 Volume to Detain in Temporary Pond
FLOOD POOL
Elevation
Area
Storage
Storage Depth
ft.
9 . ft.
cu.ft.
ao-ft ft
28.00
128,173
0.00 0.00
27.00
123:627
125,900
2.89 1.00
26.50
122,128
81,439
1.41 1.50
Depth
1.50
Available Storage -
4.30 acft
TOTALSTORAGE
TEMPORARY POOL
Elevation
Area Storage
Storage Depth
ft.
9.ft. cu.ft.
ac4t
26.50
122,128
26.44
121,957 6,946
0.16 0.00
28.00
120,629 SZ743
1.23 0.44
Depth 0.44
Available Storage =
1.39 ao-ft
vet
vn«n
64.889 ft3
60,689
> 53.743 OK
AcWal Temp Pool EI:
33.90
TOTALSTORAGE
PERMANENT POOL
Elevation
Area
Storage
Storage
Depth
ft
s . ft.
cu.R
ao-ft
ft
26.00
120,629
0.00
25.00
117,805
119,217
2.74
1.00
24.00
103,202
110,504
2.54
2.00
23.00
73,767
88,485
2.03
3.00
Depth
3.00
Available Storage =
7.30 ac4t
SAo„ar
SAp,y)
318,206 ft3
120,629
>
21,473
OK
TOTALSTORAGE
Sadmem SWaye pmvided from SevuUon 22.0 W 23.0 R
DESIGN BY: ERB
CHECKED BY: ERB

WET DETENTION POND DESIGN SHEET
DATE: December 1, 2009 SHEET 1 OF 1
PROJECT: Surf City Patio Modification DESIGN BY: ERB
PROJECT NO.: 041.08.015 + 41.08.016 CHECKED BY: ERB
DESCRIPTION: Wet Detention Fzond Draw Down Caicufation
Drawdown Rectangular Weir:
# of Weirs 1 Zone: Zone 2
Storage Volume" 53,743 ft3 Qprovided = Cw " L " h 1.5
Required Drawdown 2-5 Days Select a : 1.00 It Welr Length Q Ele 20.0 ft
Q2: 0.3110 cis C„,: 3.0
Q& 0.1244 cis Ho : 0 5 It - Mapmum Rise
"3.75-in Runoff Volume h : 0.155557 ft-Average Driving Head—
"" He, Mapmum Rise determined from a static stage -storage calculation of the 3.75-in Storm Runoff Volume. Please see Wet Detention Pond Design Sheet
— Driving Head, h, estimated per NCDENR Stormwater BMP Manual, sections 3.5.1 & 3.5.2 where h = H'(1/3)
Qprovided: 0.20 crs Q2>Qp>Q5
Drawdown Time: 73.1 hrs
3.05days —>OK

DATE: December 1, 2009 SHEET 1 OF OF 1 NOTES:
PROJECT: Surf City Community Park Modification LOCATION: Pander County, North Carolina DESIGN BY: ERB 1) Design method used is Rational Method
PROJECT NO.: 041.DB.016 CHECKED BY: WGS 2) "%" denotes existing structure
DESCRIPTION: Stormwater Conveyance System Calculations
3) All pipe shall be RCP pipe unless otherwise noted
4) Pipe lengths are ccuter-toeenter of boxes, with additional 0.Ift drop
PIPE SECTION
AREA (Acres)
INC.
TOTAL
AREA
SUM
p
ti
I
ItpN FFF,
TIME OF CONCEN.
PIPING INPUT
PIPING DATA
HGL DATA (OUTLET CONTROL)
INVERT E.1' .EVA?10N
GRATE/RIM
ELEVATION
GRATE/RIM TO
INVERT
FROM
TO
Inc. Ac
Total Ac
"C"
AxC Ac
Ac
Year
hr/Hr.
Qa (CFS)
To Inlet
(Min)
To
Upper
End
Thru
Pipe
()
Dia. (In)
Length
(Ft)
Mao. "n"
Slope (1:)
Qf Full
(CFS)
Vf Full
CF/S)
q"Q
(Qa/Qf
x100)
(VRoughness
xB)
Tv
tual
FrictionAxC
Factor
(Ke)
FrictionE(Ft)
Hem (ft)
Head
(ft)
?ailwater
Headwater
Freeboard
U Ed
]>!
LowerEnd
End
End(Ft)
DA•2
7
8
0.27
0.27
0.90
015
0 5
10
93
228
5.00
5 of1
027
15
46
0,017
0 Z50
323
263
71
108
284
0 009
120
0 09
073
2779
27 88
3 L
26.75
26.64
29.00
2S 84
2 250
2 203
1
8
B
11
0.18
045
0.90
016
04D
10
93
3%
5.00
527
117
18
227
0011
0250
$25
297
72
1D85
322
0.009
120
023
091
Z7 56
2779
103
26.54
25.97
28.94
2910
2305
3133
8
I
BLDG
11
0.00
031
0.90
ot-0
010
10
93
2T6
5.00
637
029
Jw
53
01)13
025.0
5.25
1 2.97
53
102
303
0009
120
006
084
2756
2762
3IS
26.29
26.16
31.00
2910
4707
2940
BLDG
II
9
ID
0.30
030
0.90
D.23
0.27
10
93
253
5.00
$ 00
053
1.
94
0 M
11250
525
Z 97
48
99
294
0.009
120
0 U6
093
2172
2794
167
27.01
26.78
29.51
2903
2 500
2 255
9
10
10
Il
0.11
041
0.90
010
nil
10
93
347
5.00
5$3
0A
19
171
001%
0250
525
297
66
1065
317
0009
120
U16
089
2736
2772
131
26.69
26.25
29.03
2,930
2355
1853
10
11
11
JBI
0.33
151
0.90
010
117
10
93
1277
5.00
6.66
045
24
153
0013
0500
1,399
$09
80
112
570
0009
120
054
161
27 Q2
2756
15#
25.87
25.10
29.10
2975
1213
4648
11
IBI
JB1
FES-1
0.00
151
0.90
0n0
137
10
93
1277
5.00
711
0?5
24
85
0013
0504
1599
509
80
112
570
0009
120
044
161
2658
2702
273
25.00
24.58
29.75
NA
4748
NA
IBI
FES-1
B North
BLDG
0.16
016
0.95
015
015
10
93
138
5.00
500
137
10
296
0 019
0 650
177
324
78
111
359
0 009
1 70
069
065
27 62
397
2 19
28.32
26.39
31.15
3100
2.953
4 607
RDL-N
BLDG
B-south
BLDG
0.16
016
0.95
015
015
ID
93
139
5.00
500
log
10
236
0.913
0 6"
177
3 24
78
111
359
0 009
120
U 57
065
2762
21197
2 IS
28.32
26.78
31.15
9l nn
1933
4 217
RDL4
BLDG
CAVANAUGH ASSOCIATES, PA 1 OF 1

Appendix F
NOAA Rainfall Data
Surf City Community Park
Stormwater Management High Density Permit Application

6/9/2009 Precipitation Frequency Data Server
a POINT PRECIPITATION
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
North Carolina 34.446 N 77.568 W 26 feet
from "Precipitation Frequency Atlas ofthe United States" NOAA Atlas 14, Volume 2, Version 3
U.M. Bonnin, D. Martin, B. min, T. Parzybok, M.Yel" and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
_ Extracted: Tue Jur. 9 2009
Confidence Limits jf Seasonality Location Maps Other Info. GIS data Maps Docsf Return to State Map
Precipitation Intensity Estimates (in/hr)
iQ 15 30 7nii
1 1� � � 30 45 60ears 5 mm n nunmday
mtn ; 3 hr R [12 hr, F24 hr jFj8hrj[4day 7�ac
6.00 4.79 s FOOM 2.74 1 1.71 11.04 0.75 0.46 0.27 10.16 0.09 f 0.05 0.03 0.03 0.02 0.01 0.01 10.01
7.13 5.70 :_, 4.78 3.30 i 2.07 1 1.27 ; 0.91 10.56 0.33 0.19 10.11 0.06 0.04 0.03 0.02 0.02 0.01
® 8.34J 6.68 5.63 4.00 2�56 1.62 1.16 ! 0.72 : 0.42 i 0l24 j 0.14 0.08 ; 0.05 0.04 0.02 i 0.02 0.02 0.01
10 J 9.29 7.43 ; 6.26 4.54 12.95 1.90 1 L38 s 0.85 0.50 0.29 0.17 0_09 0.06 0.04 0.03 0.02 0.02 002 I
10.49 8.36 _ 7.06
5.23 j 3.48 J
2_31
1.69 1.05 j
0.63 J 0.36 J 0.21 �i 0,11 0.07
0.05 0.03
0.03 _ 0.02 0.02
50 11.39 ,
9.07
7.66 5.77 .3.91
2.65
1.97 1.22 ;
0.73 '
0.43 0.24 0.13
0.08 0.06 0.04
0.03
0.02 0.02
100 1
9.79
8.24
6.31 ;
4.35
El]ff 1.41 0.85 ! 0.50 0.28 0.15
0.09
0.07 0.04 0.03
0.03 0.02
10.49
8.82 _
6.8�
4.82
0.11
0.08 0.05 O.o4 0.03_ 0.02
200_� 13.24
3;41 2.60 1.63 0.99J 0.58 0.33J 0.17J
500 14.44 11.42 9 9.58 7.62 ! 5.47 4.00
3.10 1.95
1.19 ,
0.70_ 0.40 0.20
0.12 0.09 0.05 0.04
OA3 + 0.03
1000 15_41� 12.14 i
10.16
8.22_! 6.00 !
4.49 13.53
'
2.23
1.38
0.81
0.46 0.23 10.14
0.10
0. ]
0.04
0.04 ` i
OA3
*These precipitation frequency estimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to N04AAtias 14 Document for more Information. NOTE: Formatting forces estimates near zero to appear as zero.
* 5
0 min
.73
101 10.03
25 j� ff2
500 12.29
100 13.30
2 �l
50 F15.64
* Upper bound of the 90% confidence interval
Precipitation Intensity Estimates (in/hr)
][ni
j
��Y
min
min
rany
hr
hr
hr
hr
Y
d.
�Y �Y �Y
5.20 i 4.33 ': 2.97 jjj:njLLj2.8Lj051 11030 1EIL7 10.10 0.06 '
6.18 5.18 R 3.58 2.24 1.38 j -0 0.62 ; 0.36 F 0.21 0.12 0.07
7.22J 6.09 4 4.33 2.77 1.76 1.27 0.79 10.47 0.27 i 0.16 j 0.09
E E7] 4.90 3.19 j 2.06 i El ; 0.94 10.56 0.32 0.18 ; 0.10
9.79 8.26 6.22 4.21 2.87 i 2.14 j 1.34 0.81 10.47 (0.27 1 0.14
10.56 18.90 6.82 4.69 13.27 2.47 � 1.55 �40'94 � 0.55 ' 0.31 � 0.16
11.33 � 9.54 � 7.42 J 5.21 � 3.70 j 2.83� 1.78 j 1_09 0.64 0.37 ; 0.19
,1� 10. 88 8.26 ,.5.92 , 4.35 3.38 1.213 1.32 10.78 .Q 4 !.Or 23
1000 1116.741113.18 !111.03 !18.93
1.52 110.90 10.51
Upper bound of the confidence interval at90%confidence level is the value which 5% ofthe
"These precipitation frequency estimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Reese refer to NOAAMas 14 Documentfor more infomation. NOTE: Formatting prevents estimates near zero to appear as zero.
0.15 10.11 i.07 10110.05 10.04 10.03
3 given frequency are greater than.
dipper.nws.noaa.gov/.../buildout.perl... 1/4

6/9/2009
ARI* * I 5
(years); min
CJ 5.57
C 6.61 '
Precipitation Frequency Data Server
-These predpbfion frequency esfirmtes are based on a parfal duration maxirre series. ARI Is the Average Recurrence Interval.
Please refer to NOAA Alas 14 Docurrentfor more inforalabon. NOTE: Fomiatdng prevents esfirnates nearzero to appear as zero.
Text version of tables
10
7
L
Z
C
Q
r 1
T 0.7
C .87
o .05
.001
Partial duration [cased Point IDF Curves - Versions 3
34.446 N 77.568 N 26 ft
�F-
...E
I
E
I I
C
C C
C
C 0
L L L
L L L L
L L
M
M 70
T
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7r m
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••�
•• I
Z Z Z
Z Z Z Z
Z Z
m
g4 m
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e
m
m
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.s is
V
V
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y
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@
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.� ,+ fU
M a
M
th VI
It
I4i
V)i
CIO
mi
.i
" 0
%o
ow
Duration
a
�-
N
CO
V %0
Tue Jun 09
16s58s25 2009
Average Recurrence Inierval
( ears)
2-year e 106-year —
5-year + 200-year
10-year -� 500-year +
25- ear --m- 1000- ear -B-
dipper.nws.noaa.gov/.../buildout.perl... 2/4

6/9/2009
Maps -
Precipitation Frequency Data Server
1 1 1
i 70-W 110-W 1 on-W
Other Maps/Photographs -
a
Z
_i
k
1113
90� w Ro-w 70'-W
These mapswere produced using a directnep requesttomthe
U.S. Census Bureau Mapping and Cartographic Resources
Tiger Map Server.
Please read disclaimer for more information
LEGEND
- State Connector
— County Stream
L_..Indian Reav Military Area
Lake/Pond/Ocean National Park
-- Street Other Park
Expressway City
Highway .0 .2 C.$unty.6 .s mi
Scale 1:228583 2
*average --true scale depends on mon for resolution
ViewUSGS digital orthophoto quadrangle (DOO) covering this location from TerraServer, LEGS Aerial Photograph may also be
available
from this site. A DOQ is a computer -generated image of an aerial photograph in which image displacement caused by terrain relief and
camera
tilts has been removed. It combines the image characteristics of photograph with the geometric qualities of map. Visit the ITCrA for
more information.
Watershed/Stream Plow Information -
for this location using the U.S. >~aivironmental Protection Agency's site.
Climate Data Sources -
Precipitation frequency results are based on data from a variety ofsources, but largely NCDC. The following links provide general
information
dipper.nws.noaa.gov/.../buildout.perl...r T r 3/4

6/9/2009 Precipitation Frequency Data Server
POINT PRECIPITATION''
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14,
North Carolina 34.430 N 77.568 W 13 feet
from "Precipitation -Frequency Atlas ofthe United States" NOAA Atlas 14, Volume 2, Version 3
G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
_ Extracted: Tue Jun 9 2009 _
Confidence Limits Seasonality Location Maps Info. Other GIS data Maps Docs Return to State Map
Precipitation Frequency Estimates (inches)
-
j ARI*
5 I
mini
10
min
1_5
min I
30
min
60
minL.._.!Ll..___...JL....._!L._!-JL__-J�
14 3 hrhr 6nhr 12nhr 24nhr 48�hr 4 ddaa da(years)
da
2.25 2.75 3 25 3.75 4.38 4.90 5.64 6.28 8.31 10.14 12.74 15.46 j
2.74 1 3.37 � 3.96 1 4.55 5.30 5.91 6.79 7.52 9.90 12.05 ` F5.0fl 18.23
3.50 4.31 5.11- 5.89 6.80 7.50 8.54 9.32 12.06 14.48 I7.92 21.40
F1'2�-oI
1 i 0.50 .0.80 1.00 ! 1.38
�C 0.60 ; 0.95 1.20 1.66
IC-710.70 i 1.12 1.41 2.01
10 y 0.78 1.24 1.57 f 2.28
s25 0.88 i 10 1`77 2.62
1.71
2.08
2.08
2.57
2.96
3�49
2.55
3Y24 j
3.81
4.62
4.15y 5_ll 6.09 7.05 8.10 8.85 9.99
5.10 J 6`30 - j 7_57 8.80 10.07 10.83 12.10-
10.82
13.84
16.44
20.25 , 23.94
12.98
16.37
19.15 i
23.49- 27.37
50 10.95 1.52 1.92 2.89
3.92
5.30
j 5.92
7.33 8.86
10.35
11.81�
12.53
13.88 14.79
18.45 21.32 26.09 30.06 '
100 1.03
1.64
2.07 3.17
4.36
6.04
6.83
8.49 10.31
12.08 13.75 14.39. 15.80 16.73 20.64 23.55 28.76
32.77
200
1.11
1.75
2.21 I3.44
4.83
6.85
7.83
9.77 11.95
14.03
1594
16.45
17.88
18_82
22.97
25_84
31_53
35.�49
500
1.21 1.91 2.40 3.82
5.49
8.02
9.33
11.70 14.45
17.02
19.28
19.65
20.92
21.83
26.25
29.00
35.34 39.13
1000� 1.29 1 2.03
2.55
4.13-
6A3
9.02�
10.63 13.39 16_65
19.64
22.20
22.42 23�47 24.33 28.92 31_49 38.35 41_92
*These predpitation Uequenty estimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Flease refer to NOMAtias 14 Documentfor more Information. NOTE: Formatting forces estimates near zero to appear as zero.
* Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
ARI** 5 10 15 30 60 120 3 6 12 24 48 4 7 10 20 30 45 ;60(years)i
mini nun min min min min hr hr hr hr hr day I day day - _day day day
�^ 0.54 0.87 1.09 1.49 1.86 2.27 2.46 3.04 3.61 4.12 4.82 5.37 6.13 6.81 8.94 10.84 13.63 16.44
�2 0.65 1.03 1.30 1.79 2.25 277813.01 3.7114.41 5.02 5.84 6.48 7.38 8.17 10.65 12.87 16.12 19.39
0.75 " 1.21 1.53 2.17 2.78 3.53 3.84 4.75 5:68 6.48 7.49- 8.22 9.28 1OR12 12_96, 15.45 19.18 22.76
{ 10 0.84 1.34 J' 1.70
2.46
3.20
4.1�
4.54
5.63
6.77 7.74 8.92
9.69 10.85 11.74
14 86 17_54 21.67
25.43 I
25 i 0:95 11:51 1;91 2.83 3.77 N
5.02 j
5.57
6.92
8.38
9.65
11�09 11.85 13.13 14.07
17.56 20.44 25_16_ 29.09�
50 11.03 1.64 2.07 3.12 4.23
5.76- 16.46
8.05
9.79
11.33
13.02 13.72 15.08 16.06
19.80 22.78 27.96 31.98
100 11.11 1.77 1 2.23 3.42 4.71
6.56
7.44 9.30 11.39 13 24 15.19
15.81 17.20 18.19 22.22 25.22 30.89 34.91
8.53
10.70 �T13.19 15.41 17.67
1812 19.51 20.53 24.82 27.77
33.95
37.93
_200 71.20 L9-0 2.39 3.72 5.22
7!
S00 1.31 12 07 2 6 i 4.14 5.94
8.73 11
0.18
12�83 ��15.96 18 79 21.50 2" 1.79 0 24.00
28.57 31.36
L38.26
42.07
1�00 1.40
'
2.21
�2�� 4.48
6_54
j 9.84
-
�111663
14_71
18.39 �21_80
F4;91- 25.07
-
2598
26.94
31_67
734.22 J
41.76
45_337
*The upper bound of the confidence interval at 90% confidence level is the value which 5% of the sirrulated quantile values for a given tequenry are greater than.
-These precipitation frequency estimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please referto NOAAAtias 14 Docurnent for more information. NOTE Formatting prevents estimates near zero to appear as zero.
dipper.nws.noaa.gov/.../buildout.perl... 1/4

6/9/2009
Precipitation Frequency Data Server
Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
2 00 1_00
1.58 2.00 `
3.11 ;
4.36
6.13 -
695 ] 8.60�
10.40 ;
12.27 113.901
14.4� 15.91 16.82 20.73 23.66
16.47 ' 16.99 18.31 19.24 23_35 26.26
28.87
32.83
500 E
28 J
1.71
2 fl
3.42
4.90
7.11
8.18
10.
38
14.58
371 �
35.86
"These precipitation frequency estirrates are based on a partial duration maxima series. ARI is the Average Recurrence Interval.
Please refer to NOAA Ades 14 Documentfor more information. NOTE: Formattlng prevents estimates near zero to appear as zero.
Text version of tables
Partial duration based Point Precipitation Frequency Estimates — Version: 3
34.438 N 77.568 N 13 ft
42
40
38
36
34
32
30
28
+' 26
a 24
£ 22
° 20
m 18
N 16
Q 14 .N
0
t 12
o. 10
8
6
4
2
a
- - -
1 2 5 10 25 50 100 200 500 1000
Average Recurrence Interval (years)
Tue Jun 09 16:50:59 2089
Duration
-min
48-hr 30-day-
10-min +
3-hr 4-dau -�-
15-min +
7-day + 60-day �*-
30-min
12-hr + 10-day +
60-min
24-hr -a- 20-da -e-
dipper.nws.noaa.gov/.../buildout.perl... 2/4

6/9/2009 Precipitation Frequency Data Server
Partial duration based Point Precipitation Frequency Estimates - Version! 3
34.430 N 77.568 W 13 ft
42
48
38
36
34
h
c 32
30
s 28
a 26
24
c 22
20
m is
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14
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Tue Jun 09
16=50t59
2009
Maps -
F
Overage Recurrence Interval
(years)
i -a-
2 -�- 100
5 -�-
10 -8 500 +
25 -*- 1000
1 Pew 110"1111 100'-w QAd RA"W
.L
t.
tjr,,
dipper.nws.noaa.gov/.../buildout.perl...
I
S
70-W
These maps were produced using a direct map requestfromthe
U.S. Census Bureau Mapping and Cartographic Resources
c' Tiger Map Server.
Please read disclaimer for more information.
3/4

6/9/2009
Other Maps/Photographs -
Precipitation Frequency Data Server
Please read disdaimer for more information
LEGEND
- State — Connector
--- County Stream
ic i �Indlan Resv Military Area
JIL- LakelPondlocean National Park
Street Other Park
,Expressway City
6 Highway 0 2 County 6 6 mi
Scale 1:228503 1
*average —true scale depen s on mon1torresol4utian
ViewUSGS digital orthophoto quadrangle (DOOI covering this location from TerraServer, USGS Aerial Photograph may also be
available
from this site. A DOQ is a computer -generated image of an aerial photograph in which image displacement caused by terrain relief and
camera
tilts has been removed. It combines the image characteristics of a photograph with the geometric qualities of a map. Visit the USGS for
more information.
Watershed/Stream Flow Information -
Find the Watershed for this location using the U.S. Environmental Protection Agency's site.
Climate Data Sources -
Precipitation frequency results are based on data from a variety ofsources, but largely NCDC. The following links provide general
information
about observing sites in the area, regardless of if their data was used in this study. For detailed information about the stations used
in this study,
please refer to NOAA Atlas 14 Document.
Using the National Climatic Data Center's (NCDC) station search engine, locate other climate stations within:
+/-30 minutes ...OR.. +/4 degree j of this location (34.430/-77.568). Digital ASCII data can be obtained directly from NCDC.
Hydrometeorological Design Studies Center
DOC/NOAA/National Weather Service
1325 East-West Highway
Silver Spring, MD 20910
[phone]
Questions?: HDSC.Questions(a)noaaaov
Disclaimer
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