SW8050518_Historical File_20110715

WDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
July 15, 2011
Mr. J. Michael Moore, Town Manager
Town of Surf City
P.O. Box 2475
Surf City, NC 28445
Dee Freeman
Secretary
Subject: State Stormwater Management Permit No. SW8 050518 Modification
Surf City Community Park & Recreation Center
High Density Project
Ponder County
Dear Mr. Moore:
The Wilmington Regional Office received a complete modified Stormwater Management
Permit Application for Surf City Community Park and Recreation Center on July 8, 2011.
The purpose of this modification is to add the impervious area from Tortuga Lane for
treatment in the wet detention pond under the high density tract of the permit. Staff
review of the plans and specifications has determined that the project, as proposed, will
comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and
Session Law 2008-211. We are forwarding Permit No. SW8 050518 MOD dated July
15, 2011, for the construction, operation and maintenance of the BMP's and built -upon
area associated with 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 by filing a petition with the Office of
Administrative Hearings (OAH). The petition must conform to Chapter 150E of the
North Carolina General Statutes, and must be filed with the OAH within thirty (30) days
of receipt of this permit. A petition is considered filed when it is received in the Office of
Administrative Hearings during normal office hours. The OAH accepts filings Monday
through Friday between the hours of 8:00 a.m. and 5:00 p.m., except for official state
holidays. The petition may be filed by facsimile (fax) or electronic mail by an attached
file (with restrictions) - provided the signed original, one (1) copy and a filing fee (if a
filing fee is required by NCGS §150B-23.2) is received in the OAH within seven (7)
business days following the faxed or electronic transmission. Unless such demands are
made this permit shall be final and binding. You should contact the OAH with all
questions regarding the filing fee and/or the details of the filing process. The mailing
address; telephone and fax numbers for the Office of Administrative Hearings are: 6114
Mail Service Center, Raleigh, NC 27699-6714. Telephone [phone]. FAX 919-
733-3378.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Phone: [phone] FAX [phone] Customer Service:1-877-623-6748 NorthCarolina
Internet www.ncwaterquality.org �►1���N����
An Equal Opportunity l Affirmative Action Employer Y/ �/

If you have any questions, or need additional information concerning this matter, please
contact Steve Pusey, at [phone].
Sincerely,
For Coleen Sullins, Director
Division of Water Quality
GDS/ sgp: S: MMStormwaterTerm its & Projects120051050518 HD12011 07 permit 050518
cc: William G. Simmons, Jr., PE — Cavenaugh and Associates
Pender County Building Inspections
Steve Pusey
Wilmington Regional Office Stormwater File
Page 2 of 2

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:
1. 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 237,364 square feet of
impervious area in a drainage area of 640,716 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 (BUA) for this
permit, including that BUA in the Tortuga Lane drainage area, the high density
drainage area, and the low density drainage area must cumulatively be
maintained at 25% or less.
3. The High Density Tract will be limited to the amount of built-bpon 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.
C.
d.
e.
f.
9-
h.
i.
j•
k.
I.
M.
n.
o.
P.
q•
r.
Drainage Area, ft2, (acres):
Onsite, if:
Offsite, ft2
Total Impervious Surfaces, fie:
Onsite, ft2:
Subject to the 1995 Rule (fl2)*
Subject to the 2008 Rule (fl2)**
Offsite, ftz (SW8 091206):
Subject to the 2008 Rule (ft2)**
Design Storm, inches:
Impervious subject to the 1995 Rule (in)*
Impervious subject to the 2008 Rule (in)**
Average Pond Design Depth, feet:
TSS removal efficiency:
Permanent Pool Elevation, FMSL:
Permanent Pool Surface Area, fe:
Permitted Storage Volume, ff:
Temporary Storage Elevation, FMSL:
Pre-dev. 1 yr-24 hr. discharge rate, cfs:
Weir Length (ft):
Weir Driving Head, Average (ft):
Weir flowrate, cfs:
Permitted Forebay Volume, ff:
Fountain Horsepower.
640,716 (14.71) DA1
572,716 (DA1, HD, onsite)
68,000 (DA1, HD, offsite)
237,364
185,513
94,090
91,423
51,851 (DA1, HD, offsite)
1.5
3.75
3.0
90%
26.0
122,055
123,896
27.0
1.22
1.0
0.333
0.641
N/A
1
Receiving Stream/River Basin: Intracoastal Waterway / Cape Fear
Stream Index Number: 18-87-(5.5)
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 OdobPr 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 01anual.
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 3 of 9

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
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all 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
III. 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 15th day of .July, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for L;oieen Sunins, uirector --
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 7of9

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
I. , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
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
Certification Requirements:
The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The 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

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DA7: Incrostrp MW area to pond, adding cams BUA
DA2 InC ft told area sotto pond, addng soma BUA
Deduct impervious area fro
Deduct drainage area from
%Impervious, assuming DP
Surf City Community Park and Recreation Center
SW8 050518 Modification
posed � 2cx\
Proposed Pro Proposed
12/2009 05/2M1 Excess
(200861995 Rules) (200061095 Rul.) 1212009
(Me per (data per (2W8 RuM)
approaron) eppk-b-)
sed DWQ Proposed Permitted Proposed
r�Yceso t ...' annna 20D5 Excess
512011 Ref
.98 ` 4
1021201
o
Impervious area, not to pond I 29.1481 ✓ 29.1431 1 0l T 7. —

Pusey, Steven
From:
Pusey, Steven
Sent:
Friday, July 15, 2011 2:18 PM
To:
Johnson, Kelly
Cc:
Scott, Georgette
Subject:
Surf City Park / Turtle Hospital
Kelly,
I made the numbers match up again between our spreadsheets for this project. I had to put the deductions for DA and
BUA of the Turtle Hospital (KBTH) back in the spreadsheet. The percent impervious for the project, if we included the
part of KBTH that drains to the pond, would be 23.8%. But this part of the project is not included in the density
calculation for reasons discussed previously.
I will pass this on to Georgette to sign.
Thanks,
cS'tcVV_,L 0. P"&C*
Environmental Engineer
NCDENR - Div. of Water Quality
Surface Water Protection
Ph [phone] / Fax [phone]
A Before printing this email, please consider your budget and the environment.
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.

Surf Cky Cemmunky Park and Recreation Center
SW8 050518 Modf union
Jarusry 2010
DAI' inuwWnglW~Dpond.eddlew BLtA Proposed Propose ereposed
Proposed
DWO
Proposed
�2DD5 tited �F.xmss
uw: incre°° Wnglusndmpow.ddaee° Stk' 122009 052011 Excess
Fxceaa
SM1A9
&2009
.:, • -) ( L.. " ' ..: 122009
512011
RBWeW Caks.
(2DDBS1985
(199S Rule) VMS
(deeper (data per
MV Chem Cscc)
Ruin)
(20a6 Rule)
eppficeeen)
(des Per
TddSft MCPO% MOM aaRnarDOMftfV M.QA5-Taq
Drainage area, tM sf
1034 734
1.118184
68 000
85.450
734
963,734
1001,880
-38.146
total acres
23,69
25.67
1.56
198
22.12
22.12
23 00
-0.88
kripelmous area, iota
216157
266.507
51651
50.350
164,306
164,306
94,090
70,216
Deduct arm taro f03 Turle Ctr. sf
-51,851
51.851
DoWdrainage area torn l03 Turtle Or, sf
-6 000
-mom
%hpervious, assuming DA= Sile Area (Overel proposed
far Whole sae: 25% ffimL 1995 SA Wakes
17.0515
20.44%
17.05%
17.05%
9.39%
Pwa-Rdta pane, Onrae 0=
Drainageareftnottopond477
663
477 468
0
0
477.468
477,468
B60 310
332,842
not b pond
10.96
f0
10.98
f9.75
A
knpeMuA arm notto
29143
29143
0
0
29143
29143
0
29.143
%hparWom area nolio pond
6.101
6.10%
6.10%
6.10%
0AM
paaea to papd, omMt.1a111]• one. ptxrta+ww.7xu1
e to
554.266
640716
68,000
86450
486286
296
141,570
344,696
b
1272
14.711
b6 1.
1.96
II M
. 3.25
7.91
ousarea. io pored
187014
237,364
51,851
50,350
135,163
135163
94090
41.073
on -aft
19,128
19,123
0
19,128
19,128
16988
2,14D
on -She sleets
35.620
35,620
0
35,620
35 620
3Z670
2950
onske parldrig
56.744
56744
0
W744
56744
23958
327W
on -site sidewa a;
9.529
9,529
0
9,529
9,529
6A98
3,431
olheron-slta
14,142
14,142
0
14142
14142
14.375
-233
ofiskelotw
51.851
102,201
51,851
50.350
0
0
0
0
% ous area to
33.74%1
37.05%
1 77.80%
27.80%
66.48%
paew >m
Drainage anmL 10 pond
68,00011;58.24%
68,000
86.450
1.56
acres;
sus to
61.861
51851
50.350
1.19
acres
% b
7625%
76.25%
5824%
Drainage epee towetlards
101.548
101 548
233
acres
krmmous area, to wela ds
46,844
46 844
1,08
ac46.13%46.13%
46.131G
Rv
0.0501
0.050
0.050
0.000
ftv
0.3541
0.3831
1
1 0.3001
0.300
0.648
1.F Sloan
1.5'
1.5
1.6
1.5
1.5
1.6
ta Voks1.9'
24,5 )3
30,708
18,2451
18,245
11470
1 4hr Sloan:
Dqft f 4hr
3.75
&75
&75
3.75
Volrft iw24ty, pre
8680
lo.oill
7598
Volume. lw2417, DOSt
61=8
45,613
45,612
Vdww lw24hr prWpost
52W5
86759
38016
45,612
VotmebContof:
61,258
76,7701
45613
45.612
11470
34 ,
Valunetocw*d 2005
359,704
T88 %
90%
90%
9D%
90%
cak(lated
2.64
261
7
2.64
2.64
Avers used for SAIDA
3.00
3.00
3.00
3.00
V
318
318
318 205
318,205
236,733
60689
123 696
44 842
49.613
52
66759
46.613
45,612
120629
12ZO55
1
120 629
i t 322
21450
25.910
1 16.843
15,840
121762
121,762
1 121762
121762
EWdmpd
26.00
26.00
1 28.00
26.00
25.00
SM ARmlo (used to got SA-l3%7
2&50
W.00
26.37
2827
28.00
420
326
326
votdme
NIA
WA
WA
NfA
NIA
lw24hrftw
0.16
0.16
0.16
0.16
Pre C
0.52
0,521
0.47
0.47
Post C
0.65
0.551
0.52
0,52
Pre -Development lw24hrilow
1.06
1.221
0.84
15.72
Post -Development lvr24hr flow
1.12
129
0.93
_
Weird rats at
0706
1998
0.236-
_
V6Wr dscharge rate
0,136
0.385
0 129
not rcvorted
War WdN In.
12-000
1200D
Wek kwKft ft
1.00
1.00
0.35
2.25
# End Conlraclons N
2.00
2.00
f7fecive weft I
0.60
0.60
Wetr head et
0.500
1J700
0.370
0.110
War head
0.167
0.333
0.247
0.037
Coetridad of d Cd
3.33
3.33
3.0
3.0
Drawdown2m at
"'19
0.72
Z30
DrawdownlYrue
7
3.73
tot, red
Dra l*mtt'rrB
4.4b
60,689
123,896
'-
44.842
0.35
0.36
War
1
1
ON
3.33
3.33
3.0
3.0
H
0.500
1.000
0.37
0.37
Aug D-rMm Head H
0.197
0.2467
02467
Ward rate avers
0227
I333
0.129
0.129
me Dmwdaantia(wrsec.
267,851
193,3281
348.i05
354,596
DlawdlYrle.
3101
4.035
4.104

Pusey, Steven
From: Pusey, Steven
Sent: Friday, July 15, 2011 9:09 AM
To: Lewis,Linda; Johnson, Kelly
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Okay, thanks. It all makes sense now. That is good because that's the way I did it! Kelly, I will return the file to you
ASAP.
Steve
From: Lewis,Unda
Sent: Friday, July 15, 2011 8:42 AM
To: Johnson, Kelly, Pusey, Steven
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Kelly has the right understanding here. From what I can remember from the June meeting, the KBTH parcel
was not part of the original park area that had the 25% limit, so they don't get included in the density
calculation for the park.
IF.... the KBTH parcel was part of the original park area that is limited to 25%then I'd agree that all of the
project area and all of the BUA for KBTH would be counted toward the density.
The extension of Tortuga Road was always part of the common plan of development for the park, so that
project area (the right-of-way) and the road BUA are included in the overall density calculation for the park.
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: Johnson, Kelly
Sent: Friday, July 15, 20118:08 AM
To: Pusey, Steven
Cc: Lewis,Unda
Subject: RE: Stevee's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Steve,
I think I understand this now. Since the turtle hospital has its own permit, it has already accounted for its drainage area
and impervious area in its own density calculation. So, counting it in the Surf City Community Park's density calculation
would be double counting it. You count both the DA and BUA for the new road because it is new and is not already
accounted for under another permit.
Il
From: Pusey, Steven
Sent: Thursday, July 14, 20114:56 PM

To: Lewis,Linda; Johnson, Kelly
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
In reference to Linda's notes:
Note 1: Correct.
Note 2: See note below.
Note 3: Shouldn't we include half the BUA from the KBTH that goes to the pond in the density calculation? (Not the
part that goes to the constructed wetlands). Also, if you are including the BUA, shouldn't you also include the DA
associated with it in the density calculation? Otherwise, it seems not to be a fair calculation.
Also, how can we include the BUA and DA for Tortuga Lane but not.for the pond half of the KBTH?
Let's discuss tomorrow if possible.
Thanks,
Steve
From: Lewis,Unda
Sent: Thursday, July 14, 2011 2:46 PM
To: Johnson, Kelly
Cc: Pusey, Steven
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
I thought this was discussed at the meeting Steve and I had on June 9. My notes indicate the following:
1. The Tortuga Lane right-of-way from the new rotary to the Karen Beasley Turtle Hospital (KBTH) should
be added to the overall tract area for density. The BUA of Tortuga Lane within that right-of-way should
be counted toward the overall 25%.
2. The KBTH project area should NOT be included in the overall tract area for density. The KBTH built -
upon area should NOT be included in the BUA for density.
3. The drainage area to the permitted pond includes half of the KBTH.
Linda Lewis
NC Division of Water Quality
127 Cardinal Drive Ext.
Wilmington, NC 23405
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: Johnson, Kelly
Sent: Tuesday, July 12, 2011 2:24 PM
To: Lewis,Linda
Cc: Pusey, Steven
Subject: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Linda,

I need some clarification on how to get the numerator and denominator for the 25% max overall for Surf City Park when
Tortuga Lane and a portion of the Sea Turtle Hospital drain offsite to the pond on Surf City Park's property. I see three
potential ways to do this calculation:
1.) Numerator: All BUA (onsite+offsite) to pond, Denominator: All DA (onsite+offsite) to pond (=23.46%)
2.) Numerator: All BUA inside the park, Denominator: The Park's Entire Area (=17.05°%)
3.) Numerator: All BUA (onsite+offsite) to pond, Denominator: The Park's Entire Area (=27.65%)
Normally, I would choose option 1. The twist here is that the park area itself was previously permitted for up to 25%
overall, but that does not mean that the offsite area that would be included in option 1's calculation would be allowed
at being counted at 25%. 1 am still leaning towards option 1. What do you think? I attached a quick spreadsheet with
the math.
Thanks,
KJ
***My email has changed to kellv.P.iohnsonMMncdenr.eov
KALWOhInsm,
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7331
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: Friday, July 15, 2011 8:42 AM
To: Johnson, Kelly; Pusey, Steven
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Kelly has the right understanding here. From what I can remember from the June meeting, the KBTH parcel
was not part of the original park area that had the 25% limit, so they don't get included in the density
calculation for the park. ,r
IF.... the KBTH parcel was part of the original park area that is limited to 25%then I'd agree that all of the
project area and all of the BUA for KBTH would be counted toward the density. &A'`s``d
dggU
The extension of Tortuga Road was always part of the common plan of development for the park, so that Cake -
project area (the right-of-way) and the road BUA are included in the overall density calculation for the park
-,d tS
Linda Lewis lh `µme
NC Division of Water Quality X110
127 Cardinal Drive Ext. C Lkc-
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: Johnson, Kelly
Sent: Friday, July 15, 2011 8:08 AM
To: Pusey, Steven
Cc: Lewis,Linda
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Steve,
I think I understand this now. Since the turtle hospital has its own permit, it has already accounted for its drainage area
and impervious area in its own density calculation. So, counting it in the Surf City Community Park's density calculation
would be double counting it. You count both the DA and BUA for the new road because it is new and is not already
accounted for under another permit.
KJ
From: Pusey, Steven
Sent: Thursday, July 14, 2011 4:56 PM
To: Lewis,Linda; Johnson, Kelly
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
In reference to Linda's notes:
Note 1: Correct.
Note 2: See note below.

Note 3: Shouldn't we include half the BUA from the KBTH that goes to the pond in the density calculation? (Not the
part that goes to the constructed wetlands). Also, if you are including the BUA, shouldn't you also include the DA
associated with it in the density calculation? Otherwise, it seems not to be a fair calculation.
Also, how can we include the BUA and DA for Tortuga Lane but not for the pond half of the KBTH?
Let's discuss tomorrow if possible.
Thanks,
Steve
From: Lewis,Linda
Sent: Thursday, July 14. 2011 2:46 PM
To: Johnson, Kelly
Cc: Pusey, Steven
Subject: RE: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
I thought this was discussed at the meeting Steve and I had on June 9. My notes indicate the following:
1. The Tortuga Lane right-of-way from the new rotary to the Karen Beasley Turtle Hospital (KBTH) should
be added to the overall tract area for density. The BUR of Tortuga Lane within that right-of-way should
be counted toward the overall 25%.
2. The KBTH project area should NOT be included in the overall tract area for density. The KBTH built -
upon area should NOT be included in the BUA for density.
3. The drainage area to the permitted pond includes half of the KBTH.
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: Johnson, Kelly
Sent: Tuesday, July 12, 2011 2:24 PM
To: Lewis,Linda
Cc: Pusey, Steven
Subject: Steve's Tortuga Lane/Surf City Park/Sea Turtle Hospital Project
Linda,
I need some clarification on how to get the numerator and denominator for the 25% max overall for Surf City Park when
Tortuga Lane and a portion of the Sea Turtle Hospital drain offsite to the pond on Surf City Park's property. I see three
potential ways to do this calculation:
1.) Numerator: All BUA (onsite+offsite) to pond, Denominator: All DA (onsite+offsite) to pond (=23.46%)
2.) Numerator: All BUA inside the park, Denominator: The Park's Entire Area (=17.05%)
3.) Numerator: All BLIA (onsite+offsite) to pond, Denominator: The Park's Entire Area (=27.65%)

Normally, I would choose option 1. The twist here is that the park area itself was previously permitted for up to 25%
overall, but that does not mean that the offsite area that would be included in option 1's calculation would be allowed
at being counted at 25%. 1 am still leaning towards option 1. What do you think? I attached a quick spreadsheet with
the math.
Thanks,
KJ
*** My email has changed to kellv.a.iohnson ncdenr.eov
V,dLlW Oil lAS0w
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7331
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.

July 8, 2011
CAVANAU G H
Steve Pusey Solutions through integrity and partnership
NCDENR Division Of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405 REC'D JUL 0 8 2011
Re: Tortuga Lane Stormwater Management Permit Application
Dear Mr. Pusey,
Cavanaugh & Associates, P.A., on behalf of the Town Of Surf City, hereby submits the
requested revised document and plan sheet as per our phone conversation on July 6, 2011.
As we discussed, the drawdown calculations have been revised to use a Cw of 3.33 instead of
3.00 and to use H/3 instead of the total H. In order to achieve a drawdown time of 2-5 days,
this required that the weir length be changed as well; therefore, the weir length has been
changed from 0.2 ft to 1 ft, which happens to match the existing length.
Please do not hesitate to contact our office should you have any questions, comments, or
require any additional information.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
0.COn a
Jeff P. Cappadona, E.I.
Attachments
cc: J. Michael Moore, Town Manager, Town Of Surf City
�CFIVDD
JUL 0 8 2011
BY:

July 1, 2011
CAVANAU G H
Steve Pusey Solutions through integrity and partnership
NCDENR Division Of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Tortuga Lane Stormwater Management Permit Application
Dear Mr. Pusey,
Cavanaugh & Associates, P.A., on behalf of the Town Of Surf City, has reviewed your
comments for the Town Of Surf City Juniper Swamp Irrigation Phase 1 Stormwater
Management Permit Application dated June 3, 2011, and has developed responses and
additional supporting information to address each item in your comments. For your
convenience, we have repeated the comments below in bold font, followed by the responses in
italicized font.
1. Please revise the total property area on page 3 of the application to the correct
amount. This total property area, site area, of the application does not need to
include area under high density offsite permit SW8 091206 (Turtle Center) and the
area of Charlie Medlin Drive. The total density limit for the new low density part of the
development is 26% as per the original permit. Also the overall development Is
limited to 25% as per the original permit. Since the Turtle Center is not part of the
overall site area, this part of the drainage area should not be used in the calculation of
overall BUA density. The BUA in this area is accounted for in the offsite permit.
Please recalculate the overall BUA density and submit for review.
The stormwater permit application form has been revised to show the areas as
discussed per the 2011-6-9 meeting with Tory Wagoner.
2. Please revise the DA map showing the original site area, the area to be used in
calculating the overall BUA density.
The post development drainage area map has been revised to show the areas as
discussed per the 2011-6-9 meeting with Tory Wagoner.
EIVED
JUL 01 2011
-'Y:
cl) emu° 7011

Please do not hesitate to contact our office should you have any questions, comments, or
require any additional information.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
K".a.-
a
Jeff P. Cappadona, E.I.
Attachments
cc: J. Michael Moore, Town Manager, Town Of Surf City
JUL 01 2oll

Pusey, Steven
From:
Pusey, Steven
Sent:
Tuesday, June 14, 2011 6:31 PM
To:
'Tory Wagoner'
Cc:
Lewis,Linda; Johnson. Kelly
Subject:
RE: Tortuga
As per our meeting last week, our previous letter requesting additional information should be changed as follows:
1. Please revise the total property area on page 3 of the application to the correct amount. This total property
area, site area, of the application does not need to include area under high density offsite permit SW8 091206
(Turtle Center) and the area of Charlie Medlin Drive. The total density limit for the new low density part of the
development is 25°% as per the original permit. Also the overall development is limited to 25°% as per the
original permit. Since the Turtle Center is not part of the overall site area, this part of the drainage area should
not be used in the calculation of overall BUA density. The BUA in this area is accounted for in the offsite permit.
Please recalculate the overall BUA density and submit for review.
2. Please revise the DA map showing the original site area, the area to be used in calculating the overall BUA
density.
Please advise if you have any questions or comments. Your response is due by June 24 as per the original request for
additional information.
Thanks,
Steve
From: Pusey, Steven
Sent: Monday, June 06, 2011 11:10 AM
To: 'Tory Wagoner
Cc: Lewis Unda
Subject: RE: Tortuga
Tory,
It looks like Thursday at 11 AM will be fine for a meeting with me and Linda Lewis. Please confirm.
Thanks,
ca...... n..
From: Tory Wagoner[mailto:[e-mail]]
Sent: Friday, June 03, 20115:04 PM
To: Pusey, Steven
Subject: RE: Tortuga
Thanks Steve, have a good weekeno
Thanks,
Tory

CA VA►NA►UGH
Tory N. Wagoner, PE, PLS
Cavanaugh & Associates, P.A.
530 N. Trade Street, Suite 302
Winston-Salem, NC 27101
336/759-9001
336/759-1005 fax
336/816-5026 mobile
From: Pusey, Steven[mailtD:[e-mail]]
Sent: Friday, June 03, 20115:01 PM
To: Tory Wagoner
Subject: RE: Tortuga
That time is good for me but 1 think it would also be a good idea to have Linda Lewis in the meeting as she may be able
to offer some creative solutions in this situation. Let me check with her and get back with you.
Regards,
Steve
From: Tory Wagoner[maiit>D:[e-mail]]
Sent: Friday, June 03, 20114:55 PM
To: Pusey, Steven
Subject: RE: Tortuga
How about 11:00?
It is quite complicated and we would like to go through all of the options to weigh against the timing of the Town's needs
and commitments to the Sea Turtle Hospital and other developers in the area.
Thanks,
Tory
CA►'V'A►NA►U G N
Tory N. Wagoner, PE, PLS
Cavanaugh & Associates, P.A.
530 N. Trade Street, Suite 302
Winston-Salem, NC 27101
336/759-9001
336/759-1005 fax
336/816-5026 mobile
From: Pusey, Steven[mailto:[e-mail]]
Sent: Friday, June 03, 20114:47 PM
To: Tory Wagoner
Subject: RE: Tortuga

Next Thursday sounds good. What time would you like to meet?
The project has become somewhat complicated. The overall site must remain at 25% BUA in order to still be considered
a low density project. Although there can be pockets of high density, like the Turtle Center, the overall site density
cannot exceed 25% as a common plan of development. Another option is to permit the entire development as high
density, but then you would have to collect and treat all stormwater runoff.
Regards,
Steve Pusey
From: Tory Wagoner [rnailto:[e-mail]]
Sent: Friday, June 03, 20114:29 PM
To: Pusey, Steven
Subject: Tortuga
Steve,
I have been reviewing the Tortuga project with Jeff and wanted to see if you might have some time next Thursday or
Friday to sit down and discuss our options?
Thanks,
Tory
CAVANAUGH
Tory N. Wagoner, PE, PLS
Cavanaugh & Associates, P.A.
530 N. Trade Street, Suite 302
Winston-Salem, NC 27101
336/759-9001
336/759-1005 fax
336/816-5026 mobile
u"

NCQENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen,H. Sullins
Governor Director
June 3, 2011
J. Michael Moore, Town Manager
Town of Surf City
P.O. Box 2475
Surf City, NC 28445
Subject: Request for Additional Information
Stormwater Project No. SW8 050518 MOD
Tortuga Lane / Surf City Community Park and Recreation Center
Pender County
Dear Mr. Moore:
Dee Freeman
Secretary
The Wilmington Regional Office received and accepted a revised, modified State Stormwater
Management Permit Application for Tortuga lane / Surf City Community Park and Recreation
Center on May 24, 2011. A preliminary in-depth review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater
review:
As discussed, please revise the total property area on page 3 of the application
to the correct amount, including area under "high density" offsite permit SW8
091206 and the area of Charlie Medlin Drive under the "low density" part of the
permit. Also, please remember that the drainage area for Charlie Medlin Drive
should be reduced by the pre-1988 BUA, thus making the drainage area smaller.
The pre-1988 BUA does not need to be included in any BUA percentage
calculations. The total density limit for the new "low density" part of the
development is 12% in accordance Session Law 2008-211. In addition, the
overall development is limited to 25% BUA in accordance with the original low
density permit per old rules in 15A NCAC 02H.1005.
Please revise the DA map showing and labeling the additional drainage area
associated with the Turtle Center on offsite permit SW8 091206 and the area of
Charlie Medlin Drive.
Please remember that a change to one number may have a domino effect on
other numbers. Please check all plans, calculations and forms and make
changes as needed.
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received in this Office prior to June 24, 2011, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal of
all required items, including the application fee.
If you need additional time to submit the information, please mail, email or fax your request for a
time extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by whir-h you expect. to s bmit the req [ired information. The
Division is allowed 90 days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 It
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748 Q Ca c:)Iina
Internet: wrww.ncwaterqualihr.org
An Euual Oaoortunity 1 Affirmative Action Emoloyer �������

Please reference the State assigned project number on all correspondence. Any original
documents that need to be revised have been sent to the engineer or agent. All original
documents must be returned or new originals must be provided. Copies are not acceptable. If
you have any questions concerning this matter please feel free to call me at [phone] or
email me at [e-mail].
Sincerely,
Steve G. Pusey
Environmental Engineer
GDS/sgp:
S:1WQS\StormwaterlPermits & Projects120051050518 HD12011 06 addinfo 050518
cc: William G. Simmons, Jr., PE — Cavanaugh & Associates, PA
Wilmington Regional Office Stormwater File -
Page 2 of 2

RECT APR 212010
April 21, 2010
Steve G. Pusey
NCDENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Surf City Community Park and Recreation Center
Dear Mr. Pusey,
CAVANAU G H
Solutions through integrity and partnership
RECEIVED
APR 21 2010
BY:
Cavanaugh & Associates, P.A. on behalf of Mr. Moore, has reviewed your letter and has
addressed each item below. DWQ's comments are repeated in bold, and the responses and
corrections are italicized.
1. Swale shown on plans (near entrance of Community Center Drive) to inlet channel of
level spreader needs to be constructed and stabilized.
The Town has contacted the contractor for the project and is requiring them to return to
the site to make the necessary repairs under the existing contractor warranty. After
repairs have been made, a representative of the Town will contact you to request a
subsequent inspection.
2. Large drainage pipe under west side of front parking area is not shown on plans and
needs to be removed per conditions of the low density section of this permit. This
area should be stabilized and vegetated after pipe removal.
During construction of the project, it was determined that the existing transfer station, as
shown on C.2.1 of the plans, was closer to the proposed parking area than was
expected. Several large storms caused significant erosion on the large slope leading to
the parking area, which resulted in the installation of the reinforcement matting on the
slope as well as the drainage pipe in question. A vegetated conveyance was
considered, but the low elevation of the transfer station as compared to the elevation of
the proposed parking area would have required losing a significant portion of the
parking area in order to achieve 3:1 side slopes, so a drainage pipe was installed
instead. This is compliant with #9 of the `DESIGN STANDARDS' as described in the
permit: "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.' The pipe was installed in order to direct runoff beneath the gravel parking
area, which is in compliance with the permit. The pipe has been shown and labeled on
the as -built sheet, which is attached.
3. A pipe Inlet on the northeast side of the wet detention pond, receiving runoff from the
stormwater forebay needs to be shown and labeled on the plans.
The pipe has been shown and labeled on the as -built sheet, which is attached.

4. Several areas of erosion need repair, stabilization, and vegetation as follows:
� 1 Erosion and sedimentation in vegetated filter at front of property.
. Sedimentation in inlet channel to level spreader.
v°:3) Sedimentation around level lip of spreader.
Erosion on wet pond banks in several areas.
VICS)) Erosion in several areas at drainage pipe outlets from fields.
6 Excessive trash in erosion path (in woods) from drainage pipe outlet (at edge
of woods near front parking area) needs to be removed. Erosion path needs to
be stabilized.
Sedimentation next to silt fence at road crossings over drainage ditch (west
side) to be removed and area stabilized to prevent further erosion.
The Town has contacted the contractor for the project and is requiring them to return to
the site to make the necessary repairs under the existing contractor warranty. After
repairs have been made, a representative of the Town will contact you to request a
subsequent inspection.
5. There is some erosion on the west bank of the fields, and some sedimentation in the
large drainage ditch (west side). Erosion should be repaired and excessive trash
should be cleaned out of the ditch.
The Town has contacted the contractor for the project and is requiring them to return to
the site to make the necessary repairs under the existing contractor warranty. After
repairs have been made, a representative of the Town will contact you to request a
subsequent inspection.
Please do not hesitate to contact our office if you have any questions, comments, or require
any additional information.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
Ail"
1!
Jeff P. Cappadona, E.I.
Attachments
cc: Michael Moore, Town Manager, Town of Surf City

Reef MAY 2 5 261,
LETTER OF TRANSMITTAL
Date:
5/25/2011
Job No.
041.09.016
Attn.:
Steve Pusey
Ref.:
Tortuga Lane Permit Form
TO: Steve Pusey
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
CAVANAU G H
Solutions through integrity and partnership
We are sending you:
® Attached
b Under Separate Cover VIA
The Following Item(s):
L--7 Shop Drawings ® Prints L--7 Pay Applications
Z-77 Copy of Letter L--7 Plans L--7 Submittal Package
L--7 Change Order n Contract Docs.
No. Copies Description
1 Revised Sheet From Stormwater Management Permit Application Form
These are Transmitted as Checked Below:
® For approval
L7�7 For Your Use
L--7 As Requested
L--7 For Review and Comment
FROM: Jeff Cappadona
L:�7 Approved as Submitted
L--7 Approved as Noted
L-7 Returned for Corrections
d Revise and Resubmit
n Resubmittal
r-7 For Distribution Prints
d Corrected Prints
Cavanaugh Associates, P.A., 130 N. Front Street, Suite 202, Wilmington, NC 28401
Phone: [phone] Fax: [phone] www.cavanaughsolutions.com

REC'D MAY 24 2011
May 23, 2011
Steve Pusey
NCDENR Division Of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
C AVA N A U G H
Solutions through integrity and partnership
Re: Tortuga Lane Stormwater Management Permit Application
Dear Mr. Pusey,
Cavanaugh & Associates, P.A., on behalf of the Town Of Surf City, has reviewed your
comments for the Tortuga Lane Stormwater Management Permit Application and has
developed responses and additional supporting information to address each item in your
comments. For your convenience, we have repeated the comments below in bold font,
followed by the responses in italicized font.
O//
1. Since you are including Totuga Lane as part of the Surf City Community Park, please
list the built -upon area (BUA) on the application under its appropriate category.
Please include BUA for Tortuga Lane under "On -site Streets". In addition, you should
list BUA for future sidewalks along Tortuga Lane under "On -site sidewalks", unless
you wish to keep it under the "Future" category in order to build something other than
sidewalks In the future. As a result, the Turtle Center should be the only Item In the
"Offsite" category on the application.
Per comment #3 from the last response, "...the offsite will be the total of th 37,017sf �, C61 ?
that is being added for the road and the 51, 851sf that is already allocated to SW
091206. " For this reason, the proposed BUA for Tortuga Lane was included with the off -
site area. The BUA for the future sidewalks has been kept in the "Future" section in case
the Town wants to use that impervious area for something other than sidewalk. 6?I-
/2. On the post development drainage area (DA) map, it appears that some impervious
areas are missing from the Turtle Center facility for phase 1 and phase 2 (parking with
permeable pavement near constructed wetlands). Please break out the offsite BUA
into its components (see note 1 above). Is the previous BUA for the Turtle Center still
the same? If not, a plan revision is needed for the Turtle Center. Please ensure that
the impervious areas shown on the post DA map are correct. Revise the post DA map
BUA in the drawing if needed.
Ali of the impervious area that drains to the existing Surf City Community Park wet
detention basin has already been included. The impervious area that drains to the
constructed wetland on the Sea Turtle Hospital property has not been shown for clarity
and because the area is part of a separate stormwater permit (SW8 091206, issued 2010-
3-26). The 51,851 S.F. of impervious area from the Sea Turtle Hospital shown on the
"Drainage Area Design Sheet"marches the value given in the most recently approved
modification to SW8 050518 (issued 2010-3-26).
/3. Please label the onsite and offsite areas on the DA maps and label the overall BUA
amounts In these areas.

The DA map has been revised and is attached.
4. Please show the sub -drainage areas for the new road on the post DA plan.
The DA map has been revised and is attached.
✓ 5. Please explain how you got 2.52 acres as the project area (shown on page 3 of 7 of
the revised application form). Also, explain how you calculated 37% as the project
impervious area. I would have thought that this would be the new total project area
(old + new site area) and the associated percent impervious would be the new total
BUA / new total project area as a percentage.
The stormwater permit application form has been revised to show the correct project
area. The 37% did not change.
S. Please remember that a change to one number may have a domino effect on other
numbers. Please check all plans, calculations and forms and make changes as
needed.
Noted.
Please do not hesitate to contact our office should you have any questions, comments, or
require any additional information.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
C A raff'4nA
Jeff P. Cappadona, E.I.
Attachments
cc: J. Michael Moore, Town Manager, Town Of Surf City
F
V
MAC 2 4 2011

��)
��Ja
r&ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
May 16, 2011
J. Michael Moore, Town Manager
Town of Surf City
214 North New River Drive ', Q ,fox �,�4 75
Surf City, NC 28445
Subject: Request for Additional Information
Stormwater Project No. SW8 050518 MOD
Tortuga Lane / Surf City Community Park and Recreation Center
Ponder County
Dear Mr. Moore:
The Wilmington Regional Office received and accepted a modified State Stormwater
Management Permit Application for Tortuga lane / Surf City Community Park and
Recreation Center on April 12, 2011. A preliminary in-depth review of that information
has determined that the application is not complete. The following information is
needed to continue the stiorrnwater review:
1. Since you are including Tortuga Lane as part of the Surf City Community
Park, please list the built -upon area (BUA) on the application under its
appropriate category. Please include BUA for Tortuga Lane under "On -
site Streets". In addition, you should list BUA for future sidewalks along
Tortuga Lane under "On -site sidewalks", unless you wish to keep it under
the "Future" category in order to build something other than sidewalks in
the future. Fs a result, the Turtle Center should be the only item in the
"Offsite" category on the application.
2. On the post development drainage area (DA) map, it appears that some
impervious areas are missing from the Turtle Center facility for phase 1
and phase 2 (parking with permeable pavement near constructed
wetlands). Please break out the offsite BUA into its components (see note
1 above). Is the previous BUA for the Turtle Center still the same? If not,
a plan revision is needed for the Turtle Center. Please ensure that the
impervious areas shown on the post DA map are correct. Revise the post
DA map BUA in the drawing if needed.
3. Please label the onsite and offsite areas on the DA maps and label the
overall BUA amounts in these areas.
4. Please show the sub -drainage areas for the new road on the post DP.
plan.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748 XMIJUJIff
'l]Ca,�olina
Internet www.ncwaterquality.org
An Equal Opportunity l Affirmative Action Employer

5. Please explain how you got 2.52 acres as the project area (shown on
page 3 of 7 of the revised application form). Also, explain how you
calculated 37% as the project percent impervious area. I would have
thought that this would be the new total project area (old + new site area),
and the associated percent impervious would be the new total BUA / new
total project area as a percentage.
6. Please remember that a change to one number may have a domino effect
on other numbers. Please check all plans, calculations and forms and
make changes as needed.
Please note that this request for additional information is in response to a preliminary
review. The requested information should be received in this Office prior to June 16,
2011, or the application will be returned as incomplete. The return of a project will
necessitate resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail, email or fax your
request for a time extension to the Division at the address and fax number at the bottom
of this letter. The request must indicate the date by which. you expect to submit the
required information. The Division is allowed 90 days from the receipt of a completed
application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone] or email me at [e-mail].
Sincerely,
Steve G. Pusey
Environmental Engineer
GDS/sgp:
S:1WQS1Stormwater\Permits & Projects120051050518 HD12011 05 addinfo 050518
cc: William G. Simmons, Jr., PE - Cavanaugh & Associates, PA
Wilmington Regional Office Stormwater File
Page 2 of 2

April 11, 2011
Kelly Johnson
NCDENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
CAVANAUGH
Solutions through integrity and partnership
Re: Tortuga Lane Stormwater Management Permit Application
Dear Ms. Johnson,
Cavanaugh & Associates, P.A., on behalf of the Town Of Surf City, has reviewed your
comments for the Tortuga Lane Stormwater Management Permit Application and has
developed responses and additional supporting information to address each item in your
comments. In further review of this project, it was determined that accounting for future
sidewalk along Tortuga Lane would be advantageous for future stormwater permit
modifications. For this reason, future sidewalk has been accounted for in the impervious area
calculations. For your convenience, we have repeated the comments below in bold font,
followed by the responses in italicized font.
1. Permit Numbers: I have attached an (Excel sheet summarizing the BUA that is
permitted and the BUA that is proposed. Is this mod to add the road to SW8 050518,
or are you also affecting the Sea Turtle Hospital permit (SW8 091206). There is a third
permit number (SW8 100316) for Tortuga Road, but there has not been a permit
issued for that permit number.
This modification is only for SW8 050518, and it will not affect the Sea Turtle Hospital
permit (SW8 091206) in any way. The third permit number (SW8 100316) may be from
the request for a stormwater permit application for Tortuga Lane regarding the Sea Turtle
Hospital, but is no longer required since the stormwater from Tortuga Lane is being
handled by modifying SW8 050518.
2. Drainage Area: It looks like the onsite DA to the SW8 050518 pond will decrease from
486,266 to 482,227sf. Where will the —4Ksf go? Does that area contain impervious
area?
The drainage area to the pond was incorrectly stated in the previous submittal. The
drainage area table on the Stormwater Management Permit Application Form has been
revised with the correct values for On -site Drainage Area and Off -site Drainage Area.
Please see the attached revised table.
3. Impervious Data: Please break out the impervious on the application into buildings,
sidewalks, etc. The "existing" line should be for impervious area that was built before
1988 when the State Stormwater rules began. The 187,014sf of Impervious that has
already been permitted should be broken down into how it is used overall. (So, the
offsite will be the total of the 37,017sf that is being added for the road and the
51,851sf that is already allocated to SW8 091206.)
APR 12 2011

The drainage area table on the Stormwater Management Permit Application Form has
been revised. Please see the attached revised table.
4. DA Map: Please submit an overall drainage area .map for SW8 050518. We need to
see the drainage area to the SW8 050518 pond (showing both the onsite and offsite
areas) and also showing the rest of SW8 060518 which is low density.
Please see the attached post development drainage area map.
5. Existing BUA for Tortuga Lane: We also need to see a plan of the "existing"
development on Tortuga Lane.
Please see the attached pre -development drainage area map.
6. Pre Development Rv: It looks like 187,014sf (the impervious that has already been
permitted) Is used as the numerator in finding the percent Impervious for the pre-dev
Rv? We generally see people use the "existing" (ie pre-1988) BUA for that value to
reflect the site conditions before the site was developed? Why is 187,014sf being
used?
The drainage area calculations and Wet Detention Basin Supplement have been revised.
Changing the impervious fraction IA,p, to 0 significantly increased the required runoff
volume to control. The future sidewalk that has been added also contributed to this
increase in required runoff volume to control. Please see the attached revised sheets.
7. Volume: The wet pond supplement submitted for the 3/26/10 permit shows a
minimum volume of 39,912cf. Why has the impervious Increased with this application,
but the required volume has decreased to 29,209cf?
The Wet Detention Basin Supplement has been revised per Comment #6, which shows
that the required volume has increased from the 3126110 permit. Please see the
attached revised Wet Detention Basin Supplement.
8. Table of Elevations: Please show the temporary pool elevation in the table of
elevations/areas/volumes.
Please see the attached revised table.
APR 12 Nil

Please do not hesitate to contact our office if you have any questions, comments, or require
any additional information.
Regards,
CAVANAUGH & ASSOCIATES, P.A.
Je P. Cappadona, E.I.
Attachments
cc: J. Michael Moore, Town Manager, Town Of Surf City
APR 12 2011

DRAINAGE AREA DESIGN SHEET
DATE: Apri111.2010 SHEET 1 OF 2
PROJECT: Tortuga Lane DESIGN BY: JPC
PROJECT NO.: 041.09.018 CHECKED BY: WGS
DESCRIPTION: Drainage Areas - Impervious Areas
SC Community Park
SC Community Park
Sea Turtle Hospital
Sea Turtle Hospital
Pre-Develooment Dralnana Area Total
Pre -Development
C
A M2
A ac
Im ervious
095
0
0.00
2
O n/Gass
488266
11.16
Wal Fried C
0.35
Total Area
486.
11.18
Impervious Area
0
0.00
Percent Impervious
0.0%
Post Davalnnmant Drnlnana Aras Total
Pre -Development
C
A
A ac
1
Previously Approved On -Site Impervious
0.95
MASS
3.10
2
Previously Approved Off-Sibe Open/Grass
0.35
351,103
8.08
3
Previously Approved Off-Sibe Imervious
095
51.851
1.19
4
1 Previousiv ADcroved Off -Site Open/Grass
0.38
1$149
0.37
5
As heh
0.95
37,801
0.85
6
Sidewalk Future
005
12,689
0.29
7
O en/Grass
0.35
36100
0.83
Wei Eked C
0.57
Total Area
640 718
14.71
Impervious Area
237,364
5.45
Percent Impervious
37.0%
Suh.Drslnsna Aros 1 rpnaf rlavatnnmunfl
Pre -De relo ment
C
A
A as
1
hart
0.95
1 LIM
0.27
2
Sidewalk Future
0.95
4056
0.09
3
O n/Grass
0.35
12200
0.28
Weighted C
0.69
Total Area
28,141
0.65
Im pervious Area
15,941
0.37
Pecent Impervious
1 56.8%
Sub-Dralnana Aura 2 rpoat navalnnmanfl
Pre-Develo merit
C
A R2
A as
1
Asphalt
0.95
IZQ12
0.28
2
1 Sidewalk Future
0.95
4,235
0.10
3
O en/Grass
0.35
12,584
0.29
Weighted C
0.69
Total Area
28 631
0.68
Impervious Area
18 247
0.37
Psrasnt Impervious
I W.4%
Sub-Dralnace Area 3 Most Davalonmantl
Pre -Development
C
A R2
A as
1
!Asphalt
0.95
6,518
0.15
2
Sidewalk Future
0.95
Z293
0.05
3
1 Open/Grass
0.35
5,930
0.14
Weighted C
0.71
Tel Area
14 739
0.34
Impervious Area
8,809
0.20
Parcent Impervious
59.8%
Sub-Dralrlana Aran A Moat rlavalnnmanfl
Pre -Development
C
A rR:2
A ac
1
lAsphalt
0.95��5
0.17
2
Sidewalk Future
0.950.05
3
O n/Grass
0.35
0.12
Wei hied C
0.73
Total Area
14 739
0.34
Impervious Area
9,353
0.21
Pareent Impervious
1 63.5%
APR 12 2011
iBY,

DRAINAGE AREA DESIGN SHEET
DATE: April 11, 2010 SHEET 1 OF 2
PROJECT: Torlupa Lane DESIGN BY: JPC
PROJECT NO.: 041.09.018 CHECKED BY: WGS
DESCRIPTION: Drainace Areas - Impervious Areas
Pnst navalnnmant nmInana Aral Tntal
Pro -Development
I C
A ft2
A ac
1
Previously Approved On -Site In
0.95
135,163
3.10
5
Asphalt
0.95
37,661
0.86
7
Open/Grass
0.35
36,100
0.83
Weighted C
0.57
Total Area
640,716
14.71
Im ervlous Area
237,364
5.45
Percent Im ervlous
37.0%
Treated Runoff Volume
Method 1 - Volume Required From 1.5" Of Rainfall
Rv =0.05+0.9"tA
IA = 0.37 Impervious Fraction
Rv - 0.38 Runoff Coefficient
V1.5-=3,630•RD "R `A
RD = 15 in Design Storm Rainfall Depth
A= 14.71 ac Watershed Area
Vi.s = 30,706 w Potential Required Runoff Volume To Control
Method 2 - Volume Required From Difference Of Pre and Post Development Runoff:
Pre-DevelopmentRv =0.05+0.9''A,
IA,P. = 0.00
Impervious Fraction
Rv,p = 0.05
Runoff Coefficient
Post -Development R v = 0.05 + 0.9 "tA
IA = 0.37
Impervious Fraction
R,,,p.d= 0.38
Runoff Coefficient
VA=3,630-RD-(Rvpasr -Rvp.) "A
RD = 3.74 In
Design Storm Rainfall Depth (1 Year, 24 Hour)
A = 14.71 ac
Watershed Area
Ve = 88,581 fe
Potential Required Runoff Volume To Control
Required Treated Runoff Volume (Maximum Of Both Methods):
V,.yd = 68,581 tr
Required Runoff Volume To Control
s
APR 12 2011
py:

Wet Detention Basin Volume Calculation
Project: TortuSLane
Location:
Surf City, NC Design By: JPC
Project No: 041.09.016
Client:
Town f Surf City ^ Checked By: WGS
Date: 201 O 4-11
Elevation ft
Area (sq. ft.)
Incr. Vol (cu. ft.)
Cumul. Vol (cu. ft.)
23.00
73,787
-
-
24.00
101,193
67,480
87,48C
25.00
117.623
109.408
196, t388
--V
26,00
5
119 839
316,727
Temporary Pool Elevation —►
27.00
126
lT23,896 i
440,623
28.00
130,567
5 L
568.774
sT�.a \/a t , ( cucAsff�e
54 ►_ICrCA. t_Q_
IVED
APR 12 2011
''- Y :

STORMWATER PIPE DESIGN SHEET
UAI= Hprn ii, [uiu
SHEET 1
OF
1
PROJECT: Tortuga Lane
DESIGN BY:
JPC
PROJECT NO.: 041.09.016
CHECKED BY:
WGS
DESCRIPTION: Stormwater Piping
To Pond
Notes: Design method used Is Rational Method
Pipe Section
Storm
Piping Input
Invert Elevations
Grate/Rlm Elevation
Piping
Data
From To
Area (Acres)
C
Year
I (in/hr)
OC,A (cfs)
Time Of Concentration (min.) Manning's n
Diameter (in)
Cross Sectional Area (ft`)
Length (ft)
Upper End Lower End
Slope (ft/ft)
Upper End Lower End
% Depth VCIA
(f/s)
QN11 (cfs)
V,-ii (f/s)
% 0 (OCL / QUI) " 100
% V (VCIA / VM1) * 100
DI-1 DI-2
034
0.73
10
93
2.31
6
0 013
18
1 T37
117
2440 du w
4Y.©0ffiffi
27.32 26. 11;J
15, gip ;=
2.0Q
S.k
3.01
01-2 JB-1
199
0.70
10
9.3
1302
5
0.009
24
3.142
207
24.10 23.59
00025
21a.bS 30.Cq
87.60°la
6.74
16.22
5.1g
11F0�,
JSA JB-2
1.09
016
10
0.2
13.02
6
0,009
24
13142..
205
23.59 23-08
000a
30.00 30.G9
V.V0%
5.77
1630
5.1?
90%
11196
fE3-2 Outlet
1.e9
0.70
1a
.3
f3O'
8
0.009
?+
142
29
23.00 23.00
(}.Qd26
3000 NIA
68.1014
6.01
17.16
3.46
10;
11®gg
DI-3 DI-2
100
0.70
10
9.3
6.4F,
5
0.013
24
3 142
36
24.19 24.10
V U 15
M-94 26.$6
t4.0&
3.72
1IM
3-ea
sm
103%
z • C EIVED
APR 12 2011

RIP RAP APRON DESIGN SHEET
DATE: April 12, 2011 03:25 PM SHEET 1 ^Q
PROJECT: Toduoa Lane I.D. NO.: DESIGN BY: JPC
PROJECT NO.: 041.09.016 FILE: CHECKED BY: WOE
DESCRIPTION: Condult Outlet Protection LOCATION: Town of Surf City, Pander Co., NC
Rip Rap Zone Delineation
25
_ 20
h
15
Z
10
0
5
0
■ Design Point
0
5 10 15 20
25
Do, Depth of Flow (ft.)
Notes: 1. Use neA hloherzone for ored" -101A
2. For pipe arch, arch, box aWon, paved chamal waste, use Dc=Cress seclionel area of wasteow.
Number of Culverts:
1
Design Velocity, Vd :
6.01 fus -From pipe tales sheet
Flow, Q :
13.020 ds
O-VA and V-Q)A
Pipe Diameter, De :
2 ft.
0= 13.020 cis
Slope, Ssoro =
0.0028 Wit
A= 3.14 ft-2
V= 4.14 Ms
Using NCDOT Rip Rap Apron Design:
Use: Zone 2
Lt: 6 ft.
L2: 12 ft.
W: 6.0 ft.
W: 6.8 ft.
CLASS'B' RIP RAP
USE MINIMUM 18" STONE THICKNESS
TOTAL STONE VOLUME=
54.0 ft3
*Based Upon I.,
122.4 ft3
*Based upon L2
MINIMUM
CLASS
L,
STONE
NCDOT RIP
OF
CoefOelant
1.2Coetftclerd
THICKNESS
ZONE
RAP CLASS
STONE
On.
1
'A'
FINE
3
4
12
2
'B'
LIGHT
3
a
18
3
1
MEDIUM
4
a
24
4
1
HEAVY
4
a
36
6
2
HEAVY
5
10
36
6
2
HEAVY
5
10
36
7
1
Design Is Beyond
the &me
of This Method
L1-LenpM to Prole"'
CWert
L2 =Lan;M to Prevent Swur Hole
NAME I WEIGHT SIZE
SPECIFICATIONS
LBS
RIP
-RAP
CLASS 1
5-200
30% SHALL WEIGH AT LEAST 90 LBB. EACH.
NO MORE THAN 10%SHALL WEIGH LESS
THAN 15 Las. EACH
CLASS 2
25-250
60%SHALL WEIGH AT LEAST BO LB.. EACH.
NO MORE THAN 5%SHALL WEIGH LESS
THAN 50 LES. EACH
CONTROL STONE
CLASS
24r
1 10%Top B BOTTOM SIZES.
NO GRADATION SPECIFIED
1 5.15"
1 NO GRADATION SPECIFIED
6LA98 B
15.300
APR 12 2011

TORTUGA LANE
STORMWATER MANAGEMENT
PERMIT APPLICATION
NARRATIVE
SURF CITY, NORTH CAROLINA
March 16, 2011
MAR 2.6 2011
CAVANAU G H
Solutions through integrity and partnership
We provide superior client service and environmentally sound
designs through integrity, communication and partnership.
Consulting Engineers
Environmental Professionals
Land Surveyors
Design Professionals
130 North Front Street, Suite 202, Wilmington, North Carolina 28401, Phone [phone], Fax [phone]

TABLE OF CONTENTS
I. INTRODUCTION
II. PROJECT DESCRIPTION
III. STORMWATER MANAGEMENT PLAN
IV. EROSION AND SEDIMENTATION
CONTROLSTRATEGY
V. EROSION & SEDIMENTATION
CONTROL CONSTRUCTION
SCHEDULE
VI. VEGETATIVE PLAN
APPENDICES
PAGE
1
1
1
2
A. Watershed Classification Map
B. NOAA Rainfall Data
C. Design Calculations
D. Surf City Community Park Stormwater Permit
2
2
Tortuga .Lane
Stormwater Management Permit Application Narrative

Narrative
I. Introduction
The subject project, formally identified as Tortuga Lane, is located in the Town of Surf
City, Pender County, North Carolina. The 2.52 acre property is located at the end of the
existing Charlie Medlin Drive off of HWY 50/210 (Roland Ave). The Limits of
Disturbance (LOD) for this project will encompass approximately 3.56 acres. Please
reference the attached site location map located in Appendix A of this Report.
The site is currently undeveloped with heavy scrub, pine, and undergrowth. The site
naturally drains towards the west and ultimately discharges to Becky's Creek. Becky's
Creek has a watershed classification of SA;HQW as confirmed by DENR-DWQ and as
shown within the Appendices section of this Report.
The site can be described as generally flat with the elevations throughout the property
ranging from 16-ft MSL to 30-ft MS. There is less than 5,000 square feet of existing
impervious gravel surface existing on site. This gravel is located at the end of Charlie
Medlin Drive and will be removed or replaced during the roadway extension. The
existing site has an approximate runoff coefficient value (C-value) of 0.35.
II. Project Description
The purpose of the proposed land disturbing activity is to expand the roadway system in
Surf City. This expansion will include extending Charlie Medlin Drive, adding Tortuga
Lane Roundabout and completing Tortuga Lane. The proposed project will consist of
approximately 2,100 linear feet of asphalt roadway.
III. Stormwater Management Plan
The post development project site consists of one (1) drainage area. Drainage Area 1
(DA1) is proposed to be 640,836 ft2, with 554,266 ft2 coming from the existing permit
and 86,570 ft2 coming from the proposed project. The existing drainage area has 187,014
ft2 of impervious surface and has a C-value of 0.55. The proposed project will add
37,017 ft of impervious surface, which gives a total of 224,031 ft2 of impervious surface
for DAL The impervious percentage for DA1 will thus be 35.0%.
The required runoff volume was determined by checking both the required runoff from
the 1.5 inch storm and the required runoff from comparing pre and post runoffs. It was
determined that the 1.5 inch condition controlled and the required volume of treatment is
29,209 W. Runoff will be collected in a swale along the edge of the road leading to a
discharge pipe to the existing wet detention basin.
Tortuga Lane 1
Stormwater Management Permit Application Narrative

IV. Erosion and Sedimentation Control Strategy
Tortuga Lane will implement several NCDENR approved erosion control methods to
stabilize the area within the LOD of this project during construction. The following is a
list of measures that will be employed. This project will also utilize approximately 6,256
L.F. of sediment fence to manage approximately 3.56 acres of disturbed area. The
NCDENR Erosion and Sediment Control Planning and Design Manual states that 100
L.F. of sediment fence is required to properly manage 0.25 acres of disturbed area. This
translates to 400 L.F. per acre. This project would therefore require a minimum of (400
L.F./ac) x (3.56 ac) = 1,424 L.F. of silt fence. With 6,256 L.F. being used on this project,
we should be well within the effective limits of the sediment fence.
V. Erosion & Sedimentation Control 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. Install stormwater management devices.
11. Install block and gravel inlet protection.
12. Construct sewer collection system.
13. Construct water system.
14. Complete rough grading of the site.
15. Shape shoulders and cut and fill slopes.
16. Scarify, seed, fertilize, and mulch all disturbed areas.
17. Install dry utilities (electrical, fiber-optic, cable, phone, etc.).
18. Re -scarify, re -seed, re -fertilize, and mulch all disturbed areas.
19. After disturbed areas are stabilized with vegetation, the contractor shall return to the
site and remove all temporary erosion control measures.
VI. Vegetative Plan
The Contractor shall provide seeding and mulching on all disturbed areas within 15
working days following the completion of any phase of grading. Seeding requirements
shall include soil preparation, seed mixtures, and mulching.
Tortuga Lane 2
Stormwater Management Permit Application Narrative

APPENDIX A
WATERSHED CLASSIFICATION MAP
Tortuga Lane
Stormwater Management Permit Application Narrative

APPENDIX B
NOAA RAINFALL DATA
Tortuga Lane
Stormwater Management Permit Application Narrative

Precipitation Frequency Data Server
ht4)://hdsc.nws.noaa.gov/cgi-biri/hdsc/buildouLperl?type=pf&units=us&se
POINT PRECIPITATION
FREQUENCY ESTIMATES
A
FROM NOAA ATLAS 14
North Carolina 34.442 N 77.567 W 26 feet
from "PrecipitatianFrequency Atlas of the United States" NOAA Ades 14, Volume Z Version 3
GM. Bcrxn:in,D. Martir4B. Lin, . ParzybokM.Yekta, and D. Riley
NOAA, National Weaflier Service, Silver Spring, Maryland, 2004
Extracted: Tw Dec 7 2010
Confidence Limits Seasonality Related Info GIS data Maps Docs Return to State Map
. ..... . .. ...... ... . .. .. .. . -Precipitation Frequency Estimates (inches)
.. ....... .. .. .. .. .. ...... .. .. .. .. .. ..... -
ARI* i 5 10 15
Ro !1 10 il 20 310 5
[:�F[L3hr - 45
[Lh -
1(years) inin min rnin 1 rniin 1 1 X I 2hr 4 48 hr.k;�!17 dav
nun
.......... aV
. .......... 77777�jja v dav dal da
1 0.8 1.50 0111.00111.371F_208 .1 d UaV
.. .... ..... I ......... . . .0 ............ .. ... .. ... ...... ....... .... - F37 FF8.29 110 13
95 6-5 F2 08 F2 54 74 36-9-6 R 5-4
2 1 -6o Fo F 89 F6 77 7.50 tl2.03:15.051 F18-19 57
5 IF-_�� [E-03 "1445 17., 0 ff2li.36
T70 �[I I I rl 41 F2 OFF2 57 F3'24 [3 50 1 31F! 5 10 5 88 6 78 F7 48 F9.29
82 F T1 0 PW176 41 20.23':
......... ... 111.11 ............
K 10-8 0 [12.07. F1 2 94 fl 6 3 2
.88 ilT.40 IF1.7.7 [6 2
............. ........ .... ... ; . . . . ........ ............... ....... . ...... .. . 23.46 i 27.32
1 533 5.92 [_iil) 110-95 L5�[1.92'F 11 _9CF T­' F 12.4 9 [53 47. [_i_4_._7T. 26.06; 17.32 .28. P7091
2.06 F60-4 F682 .47 .30 42.0Z
115.75::
- - - i� ,
100 F1.03 6 3
[H50 5.73 32.71
10 1 3.44
1.93
9 FF824.75 12219 H5.8 0 f3 1. �0 F-..I--7
F4.82 .8T. 7.82 9. - -5.89' 16.i
200 1. F `9 9 P, 1 35.42
128.95 '!F-
r1 35.31 39.W
K8KIRT6 ,126.17
so 15.4 8�1 _...'19.317 Ili. 8 14.424 8 F . ..... _0_7 i -i� 1
......... .... ... ... ........... -. ................. .. .. ... .. .. .
F1000 -729 113.36. 38.324
*These precipitation frequencyesfimates are based on a partial duration series. ARI is the Average Recurrence Interml.
Please refer to NOMAdas 14 Document for more information. NOTE: Formating forces estimates near zero to appear as zero.
..... . ... . . .. ... . . .... .. . .. ........... .... ... ...... ...
Upper bound of the 90% confidence interval
F Precipitation Frequency, Estimates (inches)
.;'j-5 ir 10 15 1 30 i 60
ARI* ;[120 6 F_,2[��r -I_
48 1: 7 11 10 20 30 45
(Years) pi- �j (min in rWn min niintruin.1 hr h h
r 1. hi
.. ......... - da�Y 11 d!Y 1 day 'I day 1 day
........... .......
87:11.08 11.491F1.85 !�.T .6.5i !rO. 110 82:
1146 j3.03 �35 13.61116.41
.. .. .. .. .. ..
... .. .. .. . ...
500 F5 8T_[��6 [f36 F8 15 110 62Uw.F
. . . . ..........
2 F6.65'r[TO3 fl.30:1 .7 .12.2T..[2.77 F6 T71 ;F 935
.44o F 16 09 F,
-!-15.43'; F i�5 1��72 ­.F
­F .
1.53 17 ;[2 �78 -FiT2'f3.83 4.T4 15.67 !F6.4 17.47 XiO ;9.25 110.09, 5 T7 Lil II fi_
4 3 5 FF T ii­
IF __.T.0 Fo-.84 "1 .34]1.70 lr�.46P. .1 �2 .7371 Wj Birl.i() .4. '1 .64!25.39
1. ...... .. .. ..... .. ... ... , .71
. ........ ... - . ...... ...... ..... ................. ... ........ ... ... .
.............. ... ...
F�� rq�.4T �C_F� T-1 25.131
113.09:
00 Fj- 122.74; 27.93 -1. 31.93 -
_�4
F 29.05
50 F1 03 F16 3 f2 0-7 3.12 14.22 75 1 5 _C0 _4 9.77 _11.29F12 9.7 [11UTF15_0 _[i6.0W11F19.74
!P�7F2 2-3 3.41 14.70 iFK 5-5
3'FI5 7-5 F17.141[18.13 22.15 ;25.171 30.86134.86
. .. ...... 7.43 :9.28 11.37:FI3.20,15.1
1 200 1.8 9 2.39 3.72 5 21 13.16IF15.35 T7.61 120.451124.74 �27.Tip;��
F-7 T. . ........ ......
................ ................. . . . .. .. ...
T[jffl.76
F 50-0 13-0 2.06 1 T6C, T1 4 5'16 [42.01
93
..... ..... ;F q-
.. ......... . .....
2.20 15-76 lF4.47 6.53 'F9.82 11 .60 f14-_671FF3TF2i.721PT81 P96 r25.88 26.83 M[j4.15 41.72 [45.26
*The upper bound ofthe confidence intoned at 90% confidence level is the value which '5"%` ofthe simulated quarifilemlues for a given frequency -are greater than.
-These precipitation frequencyestimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to NOMAfias 14 Document for more information. NOTE: Formatting prevents estimates near zero to appear as zero.
....... .... .. . I .. ........ . .. ............ .. ... ........... ..
Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
-4 7
ARI-- 6 _12 2141 1 48 1
10� 15 JF 60 1201 _F
1(years) I min I min ndn I win iWn hr
.... . .. ..... ... .. ... ... .. .. .. WF� .......... day
PT F34-4, W 0 1 F-1- Fo.46 �. 7-4 11.92 T52
..... . ..... ............. ............ ..... ..
1.53 'T92 2.35 F3-68 F3.59 F41 _8 F48-5F5.42 16.26
2 i:0.55 .88 171.1-1
1 j1.30 F1 8-5 6.86
5 LF64 F03 U-7:2 9-8 .'F32T. 3.9 i-F6 -2o F
FT-86
'Z
10
day
20
1 day
0 45 60
day day day
.. ..
7.74
....................... ... ..
........... .. ......... .. ... .. . . .................... I ........... . .. .....
95 Fn . T ri -7. 1 -9
_601.5.271 13.57lFl-68OF2-0.1-7
4.6 11.5.4
. ...................... .
.. ......... 9 1 6 9.95 15.38 Fi 8.9
1 25 13-' 2 6-9 ...........
. ................... ... . .... ... .. ... .. . ... ... ... ... .. .. ...... F��Tq_ 7-9 TI 0-3 F_ 17.84 1121.8 7 1 F2-5-69-
..... . . .......... ..................
4.81 12.56
�5O 10 8-7 11 �38 �1.75 �26 4 j5.57' : 5 P��IWW25 12-4 �;RVF16 8-9 F19.75 [24. 1 i�, F287F
�5.34 . i 1 . F6��F
1 of 3 12/7/2010 9:32 AM

Precipitation Frequency Data Server
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100 9 (1.48 (1 88 2.87 '3 96 4545 6 11 7 54 9.06 �10 67 12.12 12 78 .14 16 15.07 18 76
f _ r- - ���
200 I1 00 1. 8 '' 9 3 10 4 35 6 12 `6 94 8.59 i10 38 112.23 13.86 �14 43. 15 86 16.77 20 67
500 I1 08 11.70 12.14 13.41 114.89 10 8 17 : 10 14:� 2 36 �14.53 116 41 116 93 18 2519.18 23.28
1000 1 14 .1� 79 2.25 3 5 15 33 '7.91 9 20 11.47' 14 03 416.48 I18.57 19.02 ;2 10 8 21.09 55.35
The lower bound of the confidence interval at 90% confidence level is the value which 5% of the simulated quanble values far a given frequencyare less than.
"These precipitalion frequencyeslimates are based on a oarfia! duration maxima sedes.P.RI is theA%arage Recurrence Interval.
Please refer to NOPRAdas 14 Document for more infonnafion. NOTE: FormBting prevents estimates near zBro to appear as zero.
Text version of tables
4'
4
31
31
3,
3:
31
21
4- 21
0 2'
= Z
° 2(
4 1f
Qj
a 1f
1r
a
1(
E
f
4
'e
C
Partial duration based Point Precipitation Frequency Estimates - Version: 3
34.442 N 77.567 W 26 ft
1.68 �26 51; 30.43
3.61 2 4 �32.77
6.21 131 94 135.80
........
.
r-x
. . .
r
1 1
Tue Dec 07 09:23:25 20U
5 10 25 50 100 200 500 1.000
Average Recurrence Interval (years)
Duration
5-min - 30-min ~~ 3-hr -0- 24-hr 7-day -I- 30-day -
10-min -4- 60-min " :- 6-hr 48-hr 10-day -X- 45-day
15-min --X- 120- m - 12-hr 4-day 20-day '- 60-day->+-
2 of 3
12/7/2010 9:32 AM

Precipitation Frequency Data Server
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4;
41
31
31
31
3:
= 3(
C 2E
2(
v 2e
0
2:
° 2(
y 1E
n 1E
14
nL 12
1C
E
fi
4
2
C
Partial duration based Point Precipitation Frequency Estimates - Version: 3
34.442 N 77.567 W 26 ft
i . . L- E L L L L L L L L L M M M M M m m M 31 3)
E E E E E E O A t t S L .1 '0 '0 � a 'aLL7 6 Ili p ppI p M CID N m 0 I I I I I I I 1 1 1
ei rl M b 01 ei e i N M� M Ch ICl 40 LO N COR
Tue Dec 07 09:23:25 2010 {O Duration
Average Recurrence Interval
( ..ears l
1 -0- 2 -+- 5 -X- 10 25 50 100 — 200 •.• 500 -A- 1000
Related Information
Maps & Aerials
Click here to see topographic maps and aerial photographs available for this location from Microsoft Research Maps
Watershed/Streamflow Informatiolu
Click hereto see watershed and streamflow information available for this location from the U.S. Environmental Protection Agency's site
Climate Data Sources
National Climatic Data Center (NCDC) database
Locate NCDC climate stations within:
+/730minutes or +/71 degree of this location. Digital ASCII data can be obtained directly from NCDC.
Note: Precipitation frequency results are based on analysis ofprecipitation data from a variety of sources, 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 the matching documentation available at the PF Document page
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Office of Hvdrolooic Development
1325 East West Highway
Silver Spring, MD 20910
Questions?: HDSC.Questions noaa gov
Disclaimer
3 of 3
12/7/2010 9:32 AM

Precipitation Frequency Data Server
http://hdsc.nws.noaa.gov/cgi-bin/hdsc/buildout.perl?type=idf&units=us&s
\N POINT PRECIPITATION
A,
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
North Carolina 34.442 N 77.567 W 26 feet
front "Precipitation -Frequency Atlas of the United States" NOAA Atlas 14,Volunie2, Version 3
G.M. Bonnin, D. Marti4 B. Lir4 T. Parzybok, M.Yek-ta, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
Extracted: Tue Dec 7 2010
Confidence Limits seasonality
Related Info GIS data Maps Docs
. .... . . . . . . ....... Return to State Map
Precipitation Intensity Estimates (in/hr)
........... 11.1 ............ .... .... . ........ ....... ..... -
I-- . - - 11.1 - I 1 11 1 .. ........ . ... . ................... .. . . . . .
30 120 �8hr 20 1
.10 13 1 . - LO
LO to 20
hir 45 60
ARI* I i I r- "I 71i
-Fk
ndn i ;ff L12 hr 4 dayi 4 d
min nun
i.nun:FL-r
..........
A.81 114.00 2.74 ­5 -nj F5- -
I H 71 1.04 1FE .10.46 i�W.16
.. ... ... ... .. .... .. 0
........... .......
�217.15
'0 10.05
1
. ........... i day dav dal i day
! 1
[0-03 10.03 aM6N.01
.
.. .. .. .. ... ...
15.71 3.31 :(2.08 1127 �91 OF56 0.33 [FO."I 9 0-1
.1 08FO.04 F6.03 '0.02 !6.02
... .......... . .. .. ... ....... ..
0 O1 ro.01
F6..6-9-i5.6474[--0.�[-.-57 �. . .FI-17 0.72 I0..42 �.O
F.
-.��4
fO. 14 TT875-05
;r04 0.03 i0 02
0 02 Poi-o-
6.27 4.55 2.96
......5.. . .......3P87FO 85
.24.
PT PT0 09
FO 0-6 0.04 �FO -03F02
PT
F 5.24 4 13 -11 05 10.63 2-5 jT0.50 F8.37 17- [­F[T-Fi-.-PTiFo-21
.... .. ...... ..
9.08 ;17..67 1 5.77 F3.91
f-56- f
......... .
.... .........
JUM7 -16.03 110.03
.. .......... .7
.43 .25 V13
W0.06 [0.04 10.03
F-- �4 8071i 26- 6 32 F
100 .1234 F 436 �-02�27 F41 � 85
10.50 �0.15
--!To7
Fo -69 0.07 Fo.94 3
�.03 -i[6.02
1 200 3.25 :10.51 8.84 6.88 14.823-PC�H-63 F0 - 9-9
.42
-1�-
Fo�58 FoiT -
7 10.1
1`6. d 7 0.08 [0-05 l0 04
[0.03 152
7 I'T
T6 Yf4 -�9 !F5.�8 95 1 ..... .... .. ..
rtt=�r-l-
--'Fo-
7 .40
!F -65' 'FO
10.03 11003
�IA
0-1 3-8
.. ... .. ... F,
Wp�'O.23
!� ...........
. ....... ...... .... ......... . ...
•
These precipitation frequencyestimatas are based on a partial duration series. ARI lathe Aerage Recurrence interval.
Please re fe . r .. t . o N .0 M . Al 1. as 14 Document for more information. NOTE: Formatting forces estimates near zero to appear as zaro.
Upper bound of the 90% confidence interval
Precipitation Intensity Estimates (in/hr)
i F30 45 11 60
r 24 i 4 � 7 i 20
hr hr day day day fly
---: -f- 10 d day da day
1 12
1 5 -10 6� 120 3
e [�30 mn nan ji hr
1(y ars) 1. niin I .9tin nun irnin i
........ . .. ....... . ... .. ......... .. ... .. ...... - . ........ y
. ... ..... .. .. . . .... A02 !10.01 110.01
.34 !F2.97 455 i .51 �30 .10
F 1 6.52 !�.26 R ....... . ..... . ......... ......... ! ...... ...... .... .0.17 -06 OF04
. . ....... ...... ........... .. .. ..
�34 '- 3 58 25
2 519 F F !ET Floo Fo62 '(637
12 OTF604 003 `0.02 WW10.01
-iii-orawro-63 - -o Fo-oT. �o v -
7
-11.7 8710.79 F6.47 Fo 1 6 2 2
5 .04 .,7 16 10 -fi.3,4-riT8 --i4
ro . ............ r 10.94 [3.20 2.07 �11.51 0.3i !-0 10.06 7. 0.56 3 T.02 10.02 !10.02
F5 I
.... . . .. . . ........... . .... -
.................. pi7 Ti.� i- 02 0.08 1
25 fill 33 02 1.F63 . ...... �4�fO.69
0 02 0 02
1 50 2.31 -,�.80 18.28 [2-81F.F2.-IT. Fl-"F-
---Fo-02
-�04
-34 0 '0.14
.81 ro 0 �FO 09 67
.4T.F.27 03 1003
7 -.F -'F-j0.94
100 j13.32 40.58 1,
4.70 T28 .47 .1.55 0.32
OF55 TT97FO710 0.08 0.05 i0.03 10.03 0.02
Fi-433 0.6470.37 9' 0.12
.. .. ...... .. ... j0-04 !10.03 10.03
. .. .. ..... .. .
500 j15.66 IT2 39.10 40 F8-27 J5 9-3 F4-3s!ff38 2.14 78 !PT,'0.23 0.14
P.. ... ...... .. .. .. .
r... ... .. ... ... ...... .................... t .................... ; . ... ... .. .. ... ............0 06 0 04 ......... ...
-
---39
1000 !16.76 13-211111.05 lj 8.95 F4.91 3.86 F545 .52 io.90 :10.52 �0.26 .0.15 -10.11 0.07 i5.05 fo."R
*The upper bound ofthe confidence interval at9O% confidence level is the value which 5%ofthe simulated quartile values fore given frequencyare greaterlha-n.
"These precipitation taquencyestimales are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to NOMMas 14 Decumentform ore information. NOTE: Formatting prevents estimates near zero to appear as zBm.
ARI.. 5
to
15
;(years);
min
i rnin
njin
L�f5.57.-.
1.4z.715.
71
2
j6 6
3,29
.... . .........
4
5
7.72
16.18
5.21
10
.57
16.85
115 78
25
19.64
`7.67
16.48
F 10 .42
.............
; 30
7.00
Lower bound of the 90% confidence interval
Precipitation Intensity Estimates (inlbr)
���
30 60 3 6 24
48 4 [ 7
hr day
ndn.1 Min I ( d,3
hr
................. ......
-54 IFF58 i .96 Fo 5 W16.65 0. ........... .. . ....... ..... .... ....... .
fO.84 $0.5
.06 [0 .1075.06 0
10-F-20 If 3-o F-45 F 60
�4 F.-6
70 1.49 ---- F;0.22
0.66 jF0.31F Fo.o5-JR6.04
5
19 W3 1. 1, -1-. �,, -6: 4 � ,(�Oi- 0. 1 0.05 1. FO. 04
...... . ...... . ...................
........... .
.56 10.33 '10. 19
.95 iF 10-10 6.07 �.05
................ ....... .
... .. .. ....
28 57 10.12 .0 07 $0.06
U2 10.02 110.01 :0.01
02 'P.02 70.02 r0_01
03 10.02 110.02 i 0.02
.... ... ... ... .... ..
03 OF02-F F .02
.... .......
64 0.03 RUTIFO-.02-
I of 3
12/7/2010 9:33 AM

Precipitation Frequency Data Server
http://hdsc.nws.noaa.gov/cgi-bin/hdsc/buil dout.perI A"e=i df&units=us&s...
100 fl 1 20 ^8 90 7 50 5 74 �3 96 2 72 �2 03 11 2 0 75 IO 44 0 25 0 13 ,0 0 0� 06 0.04 i0.03 W ,0.02
-��
200 rl 1 96 f9 48 7 98 6 21 14 35 3 06 21 3 (1 43 F0 86 iD 51 0 29 r0 15 �0 09 'IO 0 0.04 10 3 0 03 0.02
_ _
500 ;12 91 10 21 �8 57 j6 82 4 89 3 55 �2.72 �1.69 �1 03 0 61 I 4 10 18 0 11 J- 08 TO.05 �0 0 j0 03 10.02
1000 113 68 10.77.19 O1 7 30 j5 33 3 96 13.06 1.92 1 16 '0 69 ,0.39 0.20 10 12 ;0 09 , 0.05 j0 04 r0 03 �0
'The lower bound of 9le confidence interval at 90% confidence law] is the value which 5%of the simulated quantle values for a ghen frequencyare less than.
��� �
"These precipitation tequencyestimates are based on a partial duration maxima sodas. ARI is the Average Recurranre Intone!.
Please refer to NOM Ages 14 Document for more information. NOTE Formatting prevents estimates near zero to appear as zero.
Text version of tables
10
7
R
3
L 2
L
� 1
0.7
4-
';, 0.3
0.2
.1
c 07
:
.05
N
46 .03
Q .02
v 01
a
.001
c c c c
E E E
4? O i
1O
ei M
Tue Dec 07 09:23:26 2010
Partial duration based Point IDF Curves - Version: 3
34.442 N 77.567 W 26 ft
t L L L L L L L L L M M M M 3) M M M M M
I .0 t t t t L L m7 16 mf �3 m n: rp 16 m: R
W I �D Go I I I I 17 a s a 'a 70 -a a 'a -a
N 07 'cf �D CIDI I I I I I I I
to M rl d M M n r, O LO O O � OI
Durationvi N rl rl N M v W
Average Recurrence Interval
(nears?
I. -year 5-year -X- 25-year s 100-year — 500-year -A-
2-year -4- 10- ear -: - 50- ear 200-year 1000 ear
Related Information
Maps & Aerials
Click here to see topographic maps and aerial photographs available for this location from Microsoft Research Maps
Watershed/Streamflow Information
Click here to see watershed and streamflow information available for this location from the U.S. Environmental Protection Agency's site
Climate Data Sources
National Climatic Data Center Tl%'-'DC j database
Locate NCDC climate stations within:
+l 30 minutes or +/ 1 degree of this location. Digital ASCII data can be obtained directly from NCDC.
Note: Precipitation frequency results are based on analysis ofprecipitation data from a variety of sources, 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 the matching documentation available at the .PFDocumentpage
2 of 3 12/7/2010 9:33 AM

Precipitation Frequency Data Server
http://hdsc.nws.noaa.gov/cgi-bin/hdse/buildout.perl?type=i df&units=us&s...
....... _......... ....
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Office of Hydrologic Development
1325 East West Highway
Silver Spring, MD 20910
Questions?: HDSC.Questions noaa.goy
Disclaimer
3 of 3
12/7/2010 9:33 AM

APPENDIX C
DESIGN CALCULATIONS
Tortuga Lane
Stormwater Management Permit Application Narrative

DRAINAGE AREA DESIGN SHEET
DATE: March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Drainage Areas - Impervious Areas
Pre-Davalnnmant nrainana Aroa Total
Pre -Development
C
A ft2
A ac
1
limpervious
0.95
187.0141
4.29
2
0 en/Grass
0.35
367.252
1 8.43
Weighted C
0.55
Total Area
554,266
12.72
Im ervious Area
187 014
4.29
Percent Im ervious
33.7%
Post Development Drainaae Area Total
Pre -Development
C
A M
A ac
1
Impervious
0.95
187,014
4.29
2
Asphalt
0.95
37,017
0.85
3
Open/Grass
0.35
416,805
9.57
Weighted C
0.56
Total Area
640,836
14.71
Impervious Area
1 2244
5.14
Percent Impervious
35.0%
Sub-Drainaae Area 1 (Post Davalnnmantl
PM -Development
C
A ft2
A ac
1
lAsphalt
0.95
13,107
0.30
2
0 en/Gress
0.35
17,910
0.41
Weighted C
0.60
Total Area
31,0171
0.71
Impervious Area
13,1071
0.30
Percent Impervious
I 42.34fi
Suh-Drainaae Araa 2 (Pnst navoinnmantl
Pre -Development
C
A M
A ac
1
]Asphalt
0.95
11,925
0.97
2
0 n/Gress
0.35
16,883
0.39
Weighted C
0.60
Total Area
28,8081
0.66
Impervious Area
11,9251
0.27
Percent Im ervious1
41.4%
Sub-Drainaae Area 3 (Pnst Davpinnmantl
Pre -Development
C
A ft2
A ac
1
lAsphalt
0.95
6,441
1 0.15
2
O en/Grass
0.35
8.1921
0.19
Weighted C
0.61
Total Area
14,633
0.34
Impervious Area
6,441
0.15
Percent Impervious
1 44.0%
Sub-Drainane Aroa A !post rlavainnmano
Pre -Development
C
A M
A ac
1
lAsphaft
0.95
5,544
0.13
2
0 en/Grass
0.35
6,568
0.15
Weighted C
0.62
Total Area
12,112
0.28
Impervious Area
5.5441
0.13
Percent Impervious
1 45.8%

DRAINAGE AREA DESIGN SHEET
DATE: March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Drainage Areas - Impervious Areas
Ptigt nwvainnmant nrainana Area Tntar
Pre -Development
C
A ft2
A ac
1
Impervious
0.95
187,014
4.29
2
Asphalt
0.95
37,017
0.85
3
Open/Grass
0.35
416,805
9.57
Weighted C
0.56
Total Area
640,836
14.71
Im ervlous Area
224,031
5.14
Percent Impervious
1 35.0%
Treated Runoff Volume
Method 1 - Volume Required From 1.5" Of Rainfall
R v = 0.05 + 0.9 * 1A
IA = 0.35 Impervious Fraction
Rv = 0.36 Runoff Coefficient
Vr,s.=3,630*RD "Rv'A
RD = 1.5 in Design Storm Rainfall Depth
A = 14.71 ac Watershed Area
V f.s• = 29,209 ft, Potential Required Volume of Treatment
Method 2 - Volume Required From Difference Of Pre and Post Development Runoff:
Pre -Development R, = 0.05 + 0.9 ' l A'm
IA,nre = 0.34
Impervious Fraction
R,,,p. = 0.35
Runoff Coefficient
Post -Development R v = 0.05 + 0.9 ' /A
IA = 0.35
Impervious Fraction
-�
Runoff Coefficient
VA = 3,630 • R o ' (R,,,r„r - R ,aa) ' A
RD = 3.74 in
Design Storm Rainfall Depth (1 Year, 24 Hour)
A = 14.71 ac
Watershed Area
Vo = 2,190 ft'
Potential Required Volume of Treatment
Required Treated Runoff Volume (Maximum Of Both Methods):
V'd = 29,209 tr
Required Volume of treatment

DRAINAGE DITCH DESIGN SHEET
DATE: March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Sub -Drainage Area 1 Channel
Ditch Dimensions
y
= 1.00
ft
Depth
B
= 2.00
ft
Bottom Width
M
= 3.0
ft/ft
Side Slope (ft horizontal / ft vertical)
W
= 8.00
ft
Top Width
s
= 0.0040
ft/ft
Channel Slope
Material
= Grass -lined swale
Channel Liner
n
= 0.030
Roughness
A
= 5.00
fe
Area
Pw
= 8.32
ft
Wetted Perimeter
R
= 0.60
ft
Hydraulic Radius
Qmax
= 11.15
cfs
Flow Capacity
V
= 2.23
ft/s
Full Flow Velocity
Runoff Data
C = 0.60
Runoff Coefficient
1 = 9.3
in/hr Intensity
A = 0.71
acres Drainage Area
Q = 3.96
cfs Flow
Operating Data
Qoperating =
3.96
cfs
Operating Flow
Yoperating =
0.61
ft
Depth Of Operating Flow
Woperating =
5.65
ft
Top Width Of Operating Flow
A
^operating =
2M
W
Area Of Operating Flow
Pwoperating =
5.85
ft
Wetted Perimeter Of Operating Flow
Roper -at -rig =
040
ft
Hydraulic Radius Of Operating Flow,
Voperating =
`i - 10
ft/s
Velocity Of Operating Flow
toperating =
0.15
Ib/fe
Shear Stress
y % Full =
61%
Percent Of Channel Height Capacity
Q % Full =
36%
Percent Of Channel Flow Capacity

DRAINAGE DITCH DESIGN SHEET
DATE: March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Sub -Drainage Area 2 Channel
Ditch Dimensions
y
= 1.00
ft
Depth
B
= 2.00
ft
Bottom Width
M
= 3.0
ft/ft
Side Slope (ft horizontal / ft vertical)
W
= 8.00
ft
Top Width
s
= 0.0040
ft/ft
Channel Slope
Material
= Grass -lined swale
Channel Liner
n
= 0.030
Roughness
A
= 5.00
fe
Area
Pw
= 8.32
ft
Wetted Perimeter
R
= 0.60
ft
Hydraulic Radius
Qmax
= 11.15
cfs
Flow Capacity
V
= 2.23
ft/s
Full Flow Velocity
Runoff Data
C = 0.60
Runoff Coefficient
1 = 9.3
in/hr Intensity
A = 0.66
acres Drainage Area
Q = 3.68
cfs Flow
Operating Data
Qoperating =
3.68
cfs
Operating Flow
Yoperating =
0.59
�5..52
ft
Depth Of Operating Flow
Woperating =
ft
Top Width Of Operating Flow
Aoperating =
2.21
fe
Area Of Operating Flow
Pw operating =
6.71
ft
Wetted Perimeter Of Operating Flow
Roperaong =
030
ft
Hydraulic Radius Of Operating Fiow
Voperating =
167
ft/s
Velocity Of Operating Flow
toperating =
0.15
Ib/fe
Shear Stress
y % Full =
59"/a
Percent Of Channel Height Capacity
Q % Full -
33%
Percent Of Channel Flow Capacity

DRAINAGE DITCH DESIGN SHEET
DATE: March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Sub -Drainage Area 3 Channel
Ditch Dimensions
y
= 1.00
ft
B
= 2.00
ft
M
= 3.0
ft/ft
W
= 8.00
ft
= 0.0040
ft/ft
Material
= Grass -lined swale
in
= 0.030
A
= 5.00
fe
PW
= 8.32
ft
R
= 0.60
ft
Qmax
= 11.13
cfs
V
= 2.23
ft/s
Runoff Data
Depth
Bottom Width
Side Slope (ft horizontal / ft vertical)
Top Width
Channel Slope
Channel Liner
Roughness
Area
Wetted Perimeter
Hydraulic Radius
Flow Capacity
Full Flow Velocity
C = 0.61 Runoff Coefficient
1 = 9.3 in/hr Intensity
A - 0.34 acres Drainage Area
Q = 1.93 cfs Flow
Operating Data
Qoperating =
1.93
cfs
Operating Flow
Yoperating =
0.42
ft
Depth Of Operating Flow
Woperating =
4.54
ft
Top Width Of Operating Flow
Aoperating =
1.39
ft`
Area Of Operating Flow
PW operating =
4.68
ft
Wetted Perimeter Of Operating Flow
Rnpn�pnc =
0.30
ft
Hydraulic Radius Of Operating Flow
Voperating =
1-39
ft/s
Velocity Of Operating Flow
toperating =
Q.11
Ib/ft2
Shear Stress
y % Full =
42%
Percent Of Channel Height Capacity
Q % Full =
17%
Percent Of Channel Flow Capacity

DRAINAGE DITCH DESIGN SHEET
DATE. March 14, 2011 SHEET 1 OF 1
PROJECT: Tortuga Lane DESIGN BY: EAS
PROJECT NO.: 041.09.016 CHECKED BY: WGS
DESCRIPTION: Sub -Drainage Area 4 Channel
Ditch Dimensions
y
= 1.00
ft
Depth
B
= 2.00
ft
Bottom Width
M
= 3.0
ft/ft
Side Slope (ft horizontal / ft vertical)
W
= 8.00
ft
Top Width
s
= 0.0040
ft/ft
Channel Slope
Material
= Grass -lined swale
Channel Liner
n
= 0.030
Roughness
A
= 5.00
fe
Area
P.
= 8.32
ft
Wetted Perimeter
R
= 0.60
ft
Hydraulic Radius
Qmax
= 11.13
cfs
Flow Capacity
V
= 2.23
ft/s
Full Flow Velocity
Runoff Data
C = 0.62
Runoff Coefficient
1 = 9.3
in/hr Intensity
A = 0.28
acres Drainage Area
Q = 161
cfs Flow
Operating Data
Qoperating =
1.61
cfs
Operating Flow
yoperating =
0.39
ft
Depth Of Operating Flow
Woperating =
4.31
ft
Top Width Of Operating Flow
A
^operating
1.21
W
Area Of Operating Flow
Pwoperating
4.43
ft
Wetted Perimeter Of Operating Flow
Roperating
f1.27
ft
Hydraulic Radius Of Operating Flow
Voperating —
1.33
ft/s
Velocity Of Operating Flow
toperating =
0.10
Ib/fe
Shear Stress
y % Full =
39%
Percent Of Channel Height Capacity
Q % Full
1 a%
Percent Of Channel Flow Capacity

�
N0
\ �
2 pow (
; HIP
«=0

RIP RAP APRON DESIGN SHEET
DATE: March 15, 2011 10:48 AM
PROJECT: Tortuga Lane I.D. NO.:
PROJECT NO.: 041.09.018 FILE:
DESCRIPTION: Conduit Outlet Protection LOCATION:
25
I
20
0
Rip Rap Zone Delineation
0 5 10 15 20 25
Do, Depth of Flow (ft.)
Town of Surf City, Pender Co., NC
• Design Point
Nates: 1. Use neat higher —far gredas "0%.
_
2. Far POO arch, arch, box culvert, paved ahrnnal outlets, use D.-C—a seotltxtel area of outlet flow.
Number of. Culverts: 1
Design Velocity, Vd : 5.89 ftJa **From pipe caics sheet
Flow, Q : 12.770 cfa
Q=VA and V=QIA
Pipe Diameter, no : 2 ft.
Q= 12.770 ON
Slope, Sep.n 0.0028 t.18.
A= 3.14 ftA2
V= 4.08 ft/S
Using NCDOT Rip Rap Apron Design:
Use: Zone 2
L,: 6 ft.
L2: 12 fL
W: 6.0 ft.
W: 6.8 ft.
CLASS'B' RIP RAP
USE MINIMUM 1W STONE THICKNESS
TOTAL STONE VOLUME= 54.0 ft'
*Based upon Lt
122.4 ft'
*Based upon L2
SHEET 1 OF 1
DESIGN BY: JPC
CHECKED BY: TNW
MINIMUM
CLASS
I
L,
Lz
STONE
NCDOT RIP
OF
Coefficient
Coefficient
THICKNESS
ZONE
RAP CLASS
STONE
ft.
ft.
in.
1
'A'
FINE
3
_
4
12
2
'B'
LIGHT
3
6
16
3
1
MEDIUM
4
6
24
4
1
HEAVY
4
S
38
5
2
HEAVY
10
38
6
2
HEAVY5
10
36
7
Design is Seyond
the Sixpe
of This Metlad
L1 =Length to ProNd CuWt
L2 =Length to Prevent Scour Hole
NAME I WEIGHT SIZE
SPECIFICATIONS
lES
RIP
-RAP
CLASS 1
5-2DO
30%SHALL WEIGH AT LEAST SO LBS. EACH.
NO MORE THAN 10%SHALL WEIGH LESS
THAN 15 LBS. EACH
CLASS 2
25-250
6D% SHALL WEIGH AT LEAST 80 LBS. EACH.
NO MORE THAN 5% SHALL WEIGH LESS
THAN 60 LBS. EACH
EROSION
CONTROL
STONE
CLASS A
2-t0%TOP
!No.
6 BOTTOM SIZES.
RADATION SPECIFIED
CLASS B
15-30D
5-iS
NO GRADATION SPECIFIED

Wet Detention Basin Volume Calculation
Project: Tortuga Lane
Project No: 041.09.016
Date: 2010-12-10
Elevation (ft) Area (so. ft.)
23.00
73,767
24.00
101,193
25.00
117,623
26.00
122,055
27.00
125,736
28.00
130,567
Location: Surf City, NC Design By: JPC
clie ,t: Town of surf city Checked By: TNW
Incr. Vol. (cu. ft.) Cunnul. Vol. (cu. ft.)
87,480
87,480
109,408
196,888
119,839
316,727
123,896
440,623
128,152
568,774

APPENDIX D
SURF CITY COMMUNITY PARK
STORMWATER PERMIT
Tortuga Lane
Stormwater Management Permit Application Narrative

A4,1A
WNW
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
March 26, 2010
Mr. J. Michael Moore, Town Manager
Town of Surf City
214 N. New River Drive
Surf City, NC 28445
Subject: Stormwater Permit No. SW8 060618 Modification
Surf City Community Park and Recreation Center
High Density Project
Ponder County
Dear Mr. Moore:
The Wilmington Regional Office received a complete modified Stormwater Management Permit
Application for Surf City Community Paris 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 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
Steve Pusey, or me at [phone].
Sincerely, qe'�etteror� 6- < , 6
gfc Cott
Stormwater Supervisor
Division of Water Quality
GDStsgp:S.`WQSISTORMWATERIPERMIT1050518MOD.mar10
cc: Ted B14-e, PE; Cavanaugh and Associates .
Pender County Planning Department
Steve Pusey
Wilmington Regional Office Stormwater File
Central Files
iNilmi+:gton Regional Office
127 Cardinal M ,ve Extension, Wilmington, Nora` Carolina 28405 One
Phone: [phone] FAX; 91"50-20041 Cuslomer Service; 1-877.623.6748 NorthCarolina
Internet: mzt.nwaterqualiry.org l��l�'
An Equal Opportunity 1 Aff-mliv�e Action Ermrz>yer l�tbi `

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
Sun` 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 (ft2j** 41,073
offsite, ft2 (SW8 091206):
Subject to the 2008 Rule (ft2)** 51,851 (HD, offsite)
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 Surface 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, ft2: 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 SL2008-21 1, 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.
3. 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 3 of 9

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. =rmittee shall submit to the Director and shall have received a proval for
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
III. 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 reqquest for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
i. 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 an 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
40 54 - -
Q/6 01ti
u eery Zullins,irector
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
SDA
Proposed
BUA
DA1
Pond #1
_.
SW8 091206
Karen Beasley Sea Turtle
Rescue & Rehab. Center
61,851
51,851
i
....... ..............._...._._._._._........_._
_-._.........
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
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/ full
time) the construction of the project,
(Project)
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
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

DWQ USE ONLY
Date Received
Fee Paid
Permi.t.N'Umber .
-
-
Applicable Rules:
(select all that apply)
0 Coastal SW - 1995.❑ Coastal SW - 2008 ❑ Ph II - Post Construction
❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATIO14'FOAM
This form ucay be photocopi.-rd for im: 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, 20k1 Community Center Drive
City:Surf City County:I'ender Zip.284.45
3. Directions to project (front nearest major intersection):
From intersection of HWY 50 and HWY 210, travel 0.7 miles south along HWY 50 and torn right onto T II
Batts Road. Travel for 0.3 miles and take a right on Community Center Drive The project proverty is located
at the end of CommunitkCenter Drive.
4_ La.titude:34° 2631.14" N Longitude:77134' 2.04" W of the main entrance to the project.
I1. PERMIT INFFORMATION,
1. a. Specify whether project is (check one): ❑New ®Modification
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 Cornpleted* ❑ Completed* *provide a designer's cerfifici tion
2. Specify the type of project (check one):
❑Low Density ®High Density []Drains to an Offsite Stormivatei System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter froin 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 ❑Sedimentation/Erosion Control: 5.05 ac of Disturbed Area
❑NI'DES Industrial Stormwater ❑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 PFNDE-
2010-006, November 19, 2009, Frosion and Sediment Control Permit
Fonn S%VCT-101 'Version 07July2D09 Page 1. of 6

III, CONTACT .INFORMATION
1. a. Print Applicant / Signing Official's name and. title (specifically the developer, property onvner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/ Orgartization:Town of Surf Cites_
Signing Official &. Titlel. Michael Moore, Town Manager
b.Corntac.t information for person listed in item 1.a above:
Street Address:214 North New River Drive
City:Surf City StateNC Zip:284.45
Mailing Address (if applicable):PO Box 2475
City:Surf City State:NC Zip:28445
Phone: (910 ) 328-4131 Fax: (910 } 328-4132
Emai.l:nnich.ael.itioore4)townofsurfci >.com
Please check the appropriate box. The applicant listed above is:
Q The property owner (Skip to Contact Information, item 3a)
❑ I-essee* (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:
1r.Contact information for person listed it item 2a above:
Street Address:
City:
Mailing Address (if applicable):
City:
Phone: ( }
Email:
State:
State: Zip:
Fax: ( }
3. a. (Optional) Print the name and title of another contact such as the projeces construction supervisor or other
person. who can answer questions about the project:
Other Contact Person/Organization:
Signing Official &
L-. Contact information for person listed inn item 3a above,
Mailing Address:
City: State: Zip:
Phone: { } Fax: }
Email:
Form SNVU-101 Version 07July2009 Page 2 of 7

4. Local jurisdiction for building permits: Town of Surf City
Point of Contact:Todd Rademacher Phone #: [phone]
IV. PROJECT INFORMATION
L In the space provided below, briefly surn.m . arize how the stormwater runoff will be treated.
The permitmodificationincreases 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 vet
detention pond.
2, a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
E] Approval of a Site Specific Development Plan or PUD Approval Date:
[] Valid Building Permit Issued Date:
F1 Other: Date:
b. Identify the regulation(s) the project has been designed in accordance with:
Fj Coastal SW - 1995 ❑ Ph IT - 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) -TotalSurface Water Area (6) =Total Project
Ayea�: 2212 -acres
Total project area shall be calculated to exclude thefO71070hig. the 1101111al Pool Of ifil ounded structures, the area
between the banks of streams and rivers, the area below the Normal High Wider (NIM line or Mean High Wah:r
(MIRA9 line, and coastal wetlands landwardfroni the .Ni (or MHM line. The resultant project area is used to
calculate overall percent built upon area (BUA). Note -coastal zt--."Itlaiidslatidzvardoftli,-nNHW(or j\41-Wlitre itiay
be included in the total project area.
& 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 BM.P. 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 51VU-101 Version 077uly2009 Page 3 of 7

Basin Information
Drainage Areal
Draina e Area 2
Draina a Area _
Drainage Area _
Receiving Stream Name
1CW W
ICWW
Steam Class *
SA;HQW
SA/HQW
Stream Index Number *
18-87-(5.5)
18-87-(5.5)
Total Drainage Area (sf)
1 554,266
477,468
On -site Drainage Area (sf)
486,266
477,468
Off -site Drainage Area-(sf)
68,000
0
Proposed Impervious Area** (so
51,851
0
% Impervious Area" total
33.7 0'
6.1
Im ervious" Surface Area
Drainage Area 1
Draina e Area 2
Drainage Area
Draina e Area _
On -site Buildings/Lots (so
On -site Streets (sf)
On -site .l''arkr:ng (so
On -site Sidewalks (sf)
Other on -site (sf)
Future (sf)
Off.-si.te (sfj
51,851
Existing BIJA*** (so
135,163
29,143
Total (sf):
187,014
29,1.43
* Stream Class and Index Nunr.ber can be determined at: http:Illz2o.etzr.state.tic.tis/binu/reports/rcportsTAIB.l:ttii1
hn�ervious area is dcf ned as the built upon area including, but not limited to, buildings, roads, parking areas,
sitfewalks, grave.1 areas, ,etc.
"**Report only that anroutrt of existing B LIA that will re»rain after development. Do not report any existing 1311A that
is to be removed and which will be replaced by new BL1A.
11.. How was the off -site impervious area listed above determined? Provide documentation, CAD delineated.
Please see Drainage Area Design Sheet in SupplementaI Report Appendix
Projects in Union County: Contact DWQ Central Office vtgffto check if th ,project is located lvithin a Threatened &
Endangered Species watershed that ma), be subject to more stringent stornmWer requirements as per ., CAC 02B . 0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) fornLs
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from htt1�://h2o.enrstate.t�c.us/su/bmk forms.htm.
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 httl2://1i2o.enr.state.zic:us/su/bmr2Forms.htm. The complete application
package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating
project on [lie interactive online map at hU:/ h2o.enr.state.nc.us/su/msi maps.hhw)
Please indicate that the following rewired 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 lit!p://ii2o.em,.state,nc.us/Su/bln]2 forms.htm.
Wtials
1.. Original and one copy of the Storrnwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form, (if required as per Parf VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M 1;?
agreement(s) for each BMP. t ;
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http://www.envhelp.org/gages/onestopexpress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additionalinformation and to schedule the required application meeting.)
Form SWU-101 Version 07July2009 Page 4 of 7

jr
5. A detailed. narrative (one to tti+=o pages) describing the stormwater treatment/managementfo.r . .
the project. This is required in addition to the brief summary provided in the Project
Information, item 1. rr
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 ? mile of the site boundary, include the 1/2
mile radius on the map. !�
7. Sealed., signed and dated calculations. J,�____ _
S. Two sets of plans folded to &5" x 14" (sealed, signed, & dated), including:
a. Development/ Project name.
b. Engineer and firm.
c. Location inap 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.
in. 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).
9. Copy of any applicable soils report with the associated S%IWT elevations (Please identify F.
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"xll" 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 verifrj the ShWF prior
to sulrrnittal, (910) 796-7.378)
10. A copy of the most current property deed. Deed book: 241.5 Page No:162
11. For corporations and limited liability corporations (L;LC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the. persons listed in Contact Information, item la, 2a, and/or 3a. per NCAC 2I-1.1003(e). The
corporation or LLC must be listed as an active corporation i n good standing with the NC
Secretary of State, otherwise the application will be.returned.
litt.p://www.secretary.state,nc.us/Corl2orations CSearch.ast).x
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
httl2:/./`b2o.ei-tr.state.nc.us/sLi/bmLi forms htmMeed 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

VIII. 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: Cavanaueh & Associates, P.A.
Mailing Address:130 North Front Street Suite 202 —
City: Wilmington
Phone: [phone]
Lmail:tburked' ccavanauehsolutions.com
State:NC Zip:28401
Fax; 991D_ 392-4612
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, item 2a) certify that I
own the property identified hi this permit application, and thus give permission to (print or hjpe name of person
listed in Contact In orination, (tern 1e
f ) _ with (print or type name of organization listen in
Contact Information, item .1 b) ...... 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 storrnwater 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 enfarcernent action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: Date:
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-10.1 Version 07hily2009 Paee 6 of 7

X. APPLICANT'S CERTIFICATION
1, (print or type naive of person listen in Contact Inforination, item 2) j. Michael Moore
certify that the information included an 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 stormwaatterr rules under 15A NCAC 2H .1000, SL 2006-246 (Ph.1I - Post Consh•action) or SL 2008-211.
Signature: l'(�%� li- t-� Date: l Z
1,
1 / �i -etc a Notary Public for the State of �?r: l f t � County of
do hereby certify that 1771t.' %-'f % %G!# __personally appeared
before me this _ 1 day of Oc.e Ai- -1v J.2cd A, and actin ivleclge the due execution of the application for
a storrnwa�t kYAWA .`yY)s ess my hand and official. seals
Ir
'®R SEAL
Y r mA
° My commission expires r`G'��4��,J.e
z= � a4. � � •1 � � ry s
Fornn SWU-101 Version 0Wuly2009 Page 7 of

Permit No.
(to be pror9sd t : D!,vQ)
AM& O��F
y
HC®EHR a
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This hum must be fiilad out, printed and submitted.
The Required Items Checklist (Part ill) must be printed, filled out and submitted along YAh all of the required information.
Project name
Contact person
Phone number
Date
Drainage area number
Surf City Community Park Permit Modification
Ted Burke
910.392.4462
1211/2009
S.C.C,P. DA # 1 +KBSTRRC DA #2
11. DESIGN INFORMATION
Site Characteristics
Drainage area
554,266 tt'
impervious area, post -development
187,014 e
%impervious
33.74 %
Design rainfall depth
3.8 in
Storage Volume: Non -SA Waters
Minimum volume required
ft'
Volume provided
ft'
Storage Volume: SA Waters
1.5' runoff volume
21,479 B'
Pre-developmant 1-yr, 24-hrrunoff
13,831 ft1
Post -development 1-yr, 24-hr runoff
53,743 it3
Minimum volume required
39,912 it'
Volume provided 60.689 0
Peak Flow Calculations
Is the prelpost control of the lyr 24hr storm peak flow required?
1-yr, 24-hr rainfall depot
Rational C, pre -development
Rafionai C, post -development
Rainfall intensity. I-yr, 24-hrstorm
Pre -development 1-yr, 24-hr peak Floe
Post -development 1-yr, 24-hr peak flour
PrelPost 1•yr, 24-hr peak [cw control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevatici)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above tlrn state-requ'.,ed temp. pool?
Elevation of the top of the additional volume
Y (Y or N)
3.8 in
0.52 (unitiess)
0.65 (unilless)
0,16 iAr OK
0.92 0sec
1.13 felsec
0.21 elsec.
:?&g 25:Wfmsl ._- 5:4f
26.00 fmsl
NIA fmsi
Ex fmsl
Ex fmsl Data not needed for cafcufation option #1, but OK If provided.
23.00 fmsi
22.00 fmsl Data not needed for calculation option #1, but OK if provided.
1.00 it
N (Y or N)
26.5 fmsl OK
Form SW401-Wet Detention Basin-Rev.8.9rt7/09 Parts I. R tl. design Sommery, Page t or 2

Permit No.
(to be pro: •led by C,Naj
Ill. DESIGN INFORMATION
Surface Areas
Area, temporary pool 122,128 fe
Area REQUIRED, permanent pool 21450 f
SAIDA ratio 3.87 (uniltess)
Area PROVIDED, permanent pool, Ar, , 120,629 fe OK
Area, bottom of 1Oft vegetated shelf, Atx.a c: Existing ft'
Area, sediment cleanoul, top elevation (bottom of pond), A ;s,, 73,767 ft`
Volumes
Volume, temporary pool
60,689 ft3
OK
Volume, permanent pool, V►,. uaa
318,205 ft'
Volume, forebay (sum of forebays If more than one forebay)
0 to
Forebay % of permanent pool volume
%
SAIDA Table Data
Design TSS removal
90 %
Coastal SAIDA Table Used?
Y (Y or N)
MountoinlPiedmont SAIDA Table Used?
__._
N (Y or N)
SAIDA ratio
3.87 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-21b)
Y (Y or N)
Volume, pennanent pool, Vr,. ;p.0
318,205 ft'
Area provided, permanent pool, A, 7,W
120,629 ft'
Average depth calculated
2,64 ft
Need 3 H min.
Average depth used in SAIDA, d,;, (Round to nearest 0.511)
3.0 ft
InsuHicler,!. Check calculation.
Ca�culation option 2 used? (See figure 10.2b)
N (Y or N)
Area provided, permanent pool, A,�,._,I.
120,629 ft`
Area, bottom of 10ftvegetated shelf, A;::...,
Existing ft
Area, sediment cleanout, top elevation (bottom of pond), A,,.: ;
73,767 ftZ
`Depth" (distance b1w bottom of 1Oft shelf and top of sediment)
#VALUE1 It
Average depth calcu oted
ft
Average depth used in SAIDA, cl,,, (Round to nearest 0.5ft)
ft
Drawdovm Calculations
Drawdown through orifice?
N (Y or N)
Diameter of orifice (if circular)
in
A,ea of orifice (If -non -circular)
in,
Coefficient of discharge (CD)
(unities$)
Drivirg head (H.,)
ft
Drawdawn through we"?
(Y or N)
Weir type
_._................_Y...............�
Rectangular (uniliess)
Coefficient of discharge (C.,)
3 (unitiess)
Length of weir (L)
1 ft
Ddvirg head (H)
0.5 ft
Pre -development 1-yr, 24-hr peak flow
0.92 felsec
Post -development 1-yr, 24-hr peak flow
1.13 felsec
Storage volume discharge rate (through discharge orifice or we'r)
0,20 O'sec
Storage volume drawdown time
3.05 days
OK, draws down in 2-5 days.
Additional Information
Vegetated side slopes
Exist_ :1
OK
Vegetated shelf slope
_......._._._.....
Existing A
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 & oriiice?
(Y or N)
OK
Freeboard provided
_.-_�'..._._._ _ _
2.5 ft
OK
Vegetated filter prc-Aded?
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
Form SY4401-Wet Datent:on Nas: r-Rev.s•9/17h)9 Pans t. & 11. Design Sumn.ary, Page 2 of 2

Pe{mit Number: '.:��>'14;j'/'1.
(to be provided by Dll'Q}
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 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.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does 0 does not incorporate a vegetated filter at the outlet.
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
maximiun extent practical,
— fence 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
Iocation anti must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
Hove I ,will remedi ate the ruble n:
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
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer a plication.
[,Veg'etationis too short or too
_
Maintain vegetation at a height of
on .
a roxinnately six_inches.
Form SW401-Wet Detention Basin O&M-Rev.4 Page I of 4

BMP element:
The inlet device: pipe or
sivale
The forebay
The vegetated. shelf
The main treatment area
Permit Number:
(to be,proWded by DTT Q)
Drainage Area Number: 2
Potential. problem:
The pipe is clogged..
The pipe is cracked or
otherwise damaged.
Erosion is occurring in the
swale.
Sediment has accumulated to
a depth greater than the
original design depth for
sediment storage.
Erosion has occurred.
Weeds are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Weeds are present.
Sediment has accumulated to
a depth greater than the
original design sediment
storage depth.
Algal growth covers over
50n.' of the area.
Cattails, phragmites or other
invasive plants cover 50% of
the basin surface.
How I will remediate the problem:
Unclog the pipe. Dispose of the
sediment off -site.
Replace the pipe.
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
_prevent future erosion problems._
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Prune according to best professional
practices
Determine the source of the
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Consult a professional to remove
and control the algal growth.
Remove the plants by wiping therm
with pesticide (do not spray).
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4

Permit Number:
(to beprovided 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
Mahe all needed repairs.
appropriate professional
shows that the embankment
needs repair. -Cif applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
. .....
The outlet device is damaged
Re air or re lace the outlet device. --
The receiving water
Erosion or outer signs of
Contact the local NC Division of
damage have occurred at the
outlet.
Water Quality Regional Office, or
the 401 Oversight Unit at 919-733-
1.786.
The measuring device used to determine the sedir ent 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
sedin-tent shall be removed.
When the permanent pool depth. reads feet in the forebay, the sediment
shall be removed.
Sediment Removal
Bottom
BASIN DIAGRAM
(1111 in Ae blanks)
NIA --------^_^ Pe anet�
-- Vohune
NIA ft Min.
Sediment
Storage
1» 4.REBAY
Permanent Pool Elevation 26.00
Pool
- - -Sediment Removal Elevation 23.0 Volume
Bottom Elevation
MAIN POND
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4
1-ft
Storage

Permit Number:
(to bz provided bvDii'Q)
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
BMP drainage area number:2
Print name:J Michael Moore
Title;Town Manager
Address:214 N New River .drive Surf City NC 28445
Photie:910-328-4131
Signature:
Date: 1 z 3
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
1, - _X? "rt•c. / 3 •z't
a Notary Public for the State of
County of J91OWI ,L do hereby certify that
personally appeared before one this `3
clay of DO of 6 v , � �'s; '1 , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
e 0nt .r III P`I,..
• r.e
14 tl'
SEAL
My commission expires It/-`sfIa`
Form SNV401-Wet Detention 13asin. O&M-Rev.4 Page 4 of 4

MDER COUATY HC 11/14/202
d $900.00
srAn or
NA 6' Real Excise Es
xcieS Tax x
tate
0AL
FILED
02 NOV 14 PM 2: 50
JOYCE N. SWICEGOOD
REGISTER OF DEEDS
PENDER COUNTY, NC
The attorney preparing this instrument has
made no record search or title examination
as to the property herein described, unless
the same is shown by his written and signed
certificate.
Parcel Identifier No.:
BK 1988PG256
g0ora S1 0
ac9° $ter 4 Deed9
ty
Verified By: County on the _ day of , 2002
Return to closing attorney:
Mail after recording to:
This instrument prepared by: Biberstsin & Bunales, Attorneys at Lan, H. O. Box; 428,
Burgaw, WC 28425.
Brief Desc for the Index 1 I 91 ac NC Hwy 50 & 210
NORTH MOLM GEN MAL WARRANTY IDEM
IBIS DEW made this = day of September, 2002 by and between:
Gerald D. Batts and wife, Dorann Batts and
Donald Z. Batts and wife, Nil= Batts and
Selva Ann Batts Worts= and husband,
Allred Wortman and Audrey Batts Viner and
husband, Kenneth V�.,.nc;. (Being _„ the
hairs at law of Ines S. Batts} and Gerald
D. Batts and Donald R. Batts as co-
executors of the Estate of Inez S. Batts
Richazd Ray Sullivan and Henry Allen
Sullivan
The designation Grantor and Grantee as used herein shall include said parties,
their heirs, successors and assigns, and shall include singular, plural, masculine, feminine
or neuter as required by context.
iLcIVL ] 2011

Johnson, Kelly
From:
Johnson, Kelly
Sent:
Thursday, April 07, 2011 3:13 PM
To:
'Jeffrey Cappadona'
Cc:
William Simmons
Subject:
RE: Tortuga State Stormwater Permit
Attachments:
Table.tif
Jeff,
4.) The drainage area map is generally included in the sealed overall plan set.
5.) We just need to see where the existing BUA is located. You can put it on any plan sheet
that you want, but generally I usually see a single DA map sheet showing the locations of the
buildings/roads/etc, BMPs, and grading because that way you can easily show what items drain
to each BMP.
8.) I have scanned it, please see attached.
OK. We will expect it by COB 4/11.
KJ
-----Original Message -----
From: Jeffrey Cappadona [mailto:[e-mail]]
Sent: Wednesday, April 06, 2011 4:35 PM
To: Johnson, Kelly
Cc: William Simmons
Subject: RE: Tortuga State Stormwater Permit
Kelly,
I have a few questions regarding your comments for Tortuga Lane.
For #4, does the drainage area map need to be sealed?
For #5, are you asking for a drainage area map like #4, or are you asking for a plan sheet to
be inserted into the plan set?
For #8, what table are you referring to?
I'm working on a response package per these comments. Gus will not be back in the office
until next Monday, so if possible, we would like to submit this response by close of business
next Monday. Please let me know if this is acceptable. Thanks.
Jeff Cappadona, E.I.
[e-mail]
Cavanaugh & Associates, P.A.
130 North Front Street, Suite 202
Wilmington, NC 28401
[phone]
[phone] (Fax)
www.cavanaughsolutions.com
Stewardship through Innovation
1

-----original Message -----
From: William Simmons
Sent: Wednesday, April 06, 2011 1:27 PM
To: Jeffrey Cappadona
Subject: Fw: Tortuga State Stormwater Permit
Please get in touch with Kelly - at least email her.
Regards,
William G. "Gus" Simmons, Jr., P.E.
Vice -President, Director of Engineering
Cavanaugh & Associates, P.A.
130 North Front Street
Wilmington, North Carolina 28401
Office: [phone]
Fax: [phone]
Cell: [phone]
www.cavanaughsolutions.com
***sent from mobile device***
----- Original Message -----
From: Johnson, Kelly <[e-mail]>
To: William Simmons
Sent: Wed Apr 06 12:08:21 2011
Subject: RE: Tortuga State Stormwater Permit
I have not heard from him?
Technically I am supposed to have either accepted or returned the project by now (because we
cannot hold uncashed checks for more than a few days). But, I am behind on that. Please ask
him to submit any necessary items to complete the package by COB Friday.
Thanks,
Kelly
From: William Simmons (mailto:[e-mail]]
Sent: Sunday, April 03, 2011 8:49 PM
To: Johnson, Kelly
Subject: RE: Tortuga State Stormwater Permit
Thanks, Kelly. I will have Jeff email you directly.
2

Regards,
William G. "Gus" Simmons, Jr., P.E.
Vice President, Director of Engineering
Cavanaugh & Associates, P.A.
130 N. Front Street, Suite 202
Wilmington, North Carolina 28401
[phone]
[phone] fax
[phone] mobile
www.cavanaughsolutions.com <http://www.cavanaughsolutions.com>
Facebook
<http://www.facebook.com/pages/Cavanaugh-Associates-PA/284691921417?ref=
nf> I Twitter <http://twitter.com/_CAVANAUGH_> I LinkedIn
<http://www.linkedin.com/companies/cavanaugh-&-associates-p.a.>
From: Johnson, Kelly (mailto:[e-mail]]
Sent: Friday, April 01, 2011 10:36 AM
To: William Simmons
Subject: FW: Tortuga State Stormwater Permit
Gus,
I had a voicemail from Jeff Capponelli (spelling?) in your office, but the phone number was
not clear. I think he has some questions. I am going to be in and out of the office for the
next few days (and I need to leave shortly). So, I will be more accessible by email, so
please send me a list.
Thanks & have a good weekend,
Kelly
3

From: Johnson, Kelly
Sent: Monday, March 28, 2011 1:26 PM
To: '[e-mail]'
Subject: Tortuga State Stormwater Permit
Gus,
We received this application and I went through it this morning. I have a few questions for
you.
1.) Permit Numbers: I have attached an Excel sheet summarizing the
BUA that is permitted and the BUA that is proposed. Is this mod to add the road to SW8
050518, or are you also affecting the Sea Turtle Hospital permit (SW8 091206). There is a
third permit number (SW8
100316) for Tortuga Road, but there has not been a permit issued for that permit number.
2.) Drainage Area: It looks like the onsite DA to the SW8 050518
pond will decrease from 486,266 to 482,227sf. Where will the —4Ksf go?
Does that area contain impervious area?
3.) Impervious Data: Please break out the impervious on the
application into buildings, sidewalks, etc. The "existing" line should be for impervious
area that was built before 1988 when the State Stormwater rules began. The 187,014sf of
impervious that has already been permitted should be broken down into how it is used overall.
(So, the offsite will be the total of the 37,017sf that is being added for the road and the
51,851sf that is already allocated to SW8 091206.)
4.) DA Map: Please submit an overall drainage area map for SW8
050518. We need to see the drainage area to the SW8 050518 pond (showing both the onsite and
offsite areas) and also showing the rest of
SW8 050518 which is low density.
5.) Existing BUA for Tortuga Lane: We also need to see a plan of the
..existing" development on Tortuga Lane.
6.) Pre Development Rv: It looks like 187,014sf (the impervious that
has already been permitted) is used as the numerator in finding the percent impervious for
the pre-dev Rv? We generally see people use the "existing" (ie pre-1988) BUA for that value
to reflect the site conditions before the site was developed? Why is 187,014sf being used?
7.) Volume: The wet pond supplement submitted for the 3/26/10 permit
shows a minimum volume of 39,912cf. Why has the impervious increased with this application,
but the required volume has decreased to 29,209cf?
8.) Table of Elevations: Please show the temporary pool elevation in
the table of elevations/areas/volumes.
Thanks,
Kelly
2

*** My email has changed to [e-mail]
Kelly Johnson
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
office: 910.796.7331
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.
5

Johnson, Kelly
From:
Johnson, Kelly
Sent:
Wednesday, April 06, 2011 12:08 PM
To:
'William Simmons'
Subject:
RE: Tortuga State Stormwater Permit
I have not heard from him?
Technically I am supposed to have either accepted or returned the project by now (because we cannot hold uncashed
checks for more than a few days). But, I am behind on that. Please ask him to submit any necessary items to complete
the package by COB Friday.
Thanks,
Kelly
From:. William Simmons Imailto:gus.simmonsO)cavanaughsolutions.coml
Sent: Sunday, April 03, 2011 8:49 PM
To: Johnson, Kelly
Subject: RE: Tortuga State Stormwater Permit
Thanks, Kelly. I will have Jeff email you directly.
Regards,
CANANAU G H
William G. "Gus" Simmons, Jr., P.E.
Vice President, Director of Engineering
Cavanaugh & Associates, P.A.
130 N. Front Street, Suite 202
Wilmington, North Carolina 28401
[phone]
[phone] fax
[phone] mobile
www.cavanauehsolutions.com
Facebook I Twitter I Linkedln
■
U PA
WaterSense
PARTNER
From: Johnson, Kelly [mailto:kelly.p.johnson@ ncdenr.gov]
Sent: Friday, April 01, 2011 10:36 AM
To: William Simmons
Subject: FW: Tortuga State Stormwater Permit

Gus,
I had a voicemail from Jeff Capponelli (spelling?) in your office, but the phone number was not clear. I think he has some
questions. I am going to be in and out of the office for the next few days (and I need to leave shortly). So, I will be more
accessible by email, so please send me a list.
Thanks & have a good weekend,
Kelly
From: Johnson, Kelly
Sent: Monday, March 28, 2011 1:26 PM
To:'[e-mail]'
Subject: Tortuga State Stormwater Permit
Gus,
We received this application and I went through it this morning. I have a few questions for you.
1.) Permit Numbers: I have attached an Excel sheet summarizing the BUA that is permitted and the BUA that is
proposed. Is this mod to add the road to SW8 050518, or are you also affecting the Sea Turtle Hospital permit
(SW8 091206). There is a third permit number (SW8100316) for Tortuga Road, but there has not been a permit
issued for that permit number.
2.) Drainage Area: It looks like the onsite DA to the SW8 050518 pond will decrease from 486,266 to 482,227sf.
Where will the —4Ksf go? Does that area contain impervious area?
3.) Impervious Data: Please break out the impervious on the application into buildings, sidewalks, etc. The
"existing" line should be for impervious area that was built before 1988 when the State Stormwater rules
began. The 187,014sf of impervious that has already been permitted should be broken down into how it is used
overall. (So, the offsite will be the total of the 37,017sf that is being added for the road and the 51,851sf that is
already allocated to SW8 091206.)
4.) DA Map: Please submit an overall drainage area map for SW8 050518. We need to see the drainage area to the
SW8 050518 pond (showing both the onsite and offsite areas) and also showing the rest of SW8 050518 which is
low density.
5.) Existing BUA for Tortuga Lane: We also need to see a plan of the "existing" development on Tortuga Lane.
6.) Pre Development Rv: It looks like 187,014sf (the impervious that has already been permitted) is used as the
numerator in finding the percent impervious for the pre-dev Rv? We generally see people use the "existing" (ie
pre-1988) BUA for that value to reflect the site conditions before the site was developed? Why is 187,014sf
being used?
7.) Volume: The wet pond supplement submitted for the 3/26/10 permit shows a minimum volume of 39,912cf.
Why has the impervious increased with this application, but the required volume has decreased to 29,209cf?
8.) Table of Elevations: Please show the temporary pool elevation in the table of elevations/areas/volumes.
Thanks,
Kelly
*** My email has changed to kellv.a.iohnson ncdenr.gov
1�%i,l�' D'VIVI•SOVI.
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting

127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7331
Fax: [phone]
E-mail correspondence to and from this address may be subRect to the North Carolina Public Records Law and may be
disclosed to third parties.

Johnson, Kelly
From: Johnson, Kelly
Sent: Monday, March 28, 2011 1:26 PM
To:'[e-mail]'
Subject: Tortuga State Stormwater Permit
Attachments: Tortuga.xlsx
Gus,
We received this application and I went through it this morning. I have a few questions for you.
1.) Permit Numbers: I have attached an Excel sheet summarizing the BUA that is permitted and the BUA that is
proposed. Is this mod to add the road to SW8 050518, or are you also affecting the Sea Turtle Hospital permit
(SW8 091206). There is a third permit number (SW8 100316) for Tortuga Road, but there has not been a permit
issued for that permit number.
2.) Drainage Area: It looks like the onsite DA to the SW8 050518 pond will decrease from 486,266 to 482,227sf.
Where will the —4Ksf go? Does that area contain impervious area?
3.) Impervious Data: Please break out the impervious on the application into buildings, sidewalks, etc. The
"existing" line should be for impervious area that was built before 1988 when the State Stormwater rules
began. The 187,014sf of impervious that has already been permitted should be broken down into how it is used
overall. (So, the offsite will be the total of the 37,017sf that is being added for the road and the 51,851sf that is
already allocated to SW8 091206.)
4.) DA Map: Please submit an overall drainage area map for SW8 050518. We need to see the drainage area to the
SW8 050518 pond (showing both the onsite and offsite areas) and also showing the rest of SW8 050518 which is
low density.
5.) Existing BUA for Tortuga Lane: We also need to see a plan of the "existing" development on Tortuga Lane.
6.) Pre Development Rv: It looks like 187,014sf (the impervious that has already been permitted) is used as the
numerator in finding the percent impervious for the pre-dev Rv? We generally see people use the "existing" (ie
pre-1988) BUA for that value to reflect the site conditions before the site was developed? Why is 187,014sf
being used?
7.) Volume: The wet pond supplement submitted for the 3/26/10 permit shows a minimum volume of 39,912cf.
Why has the impervious increased with this application, but the required volume has decreased to 29,209cf?
8.) Table of Elevations: Please show the temporary pool elevation in the table of elevations/areas/volumes.
Thanks,
Kelly
*** My email has changed to [e-mail]
K.eLLgJ ok K.SDln.
Kelly Johnson
Environmental Engineer
Division of Water Quality
Stormwater Permitting
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Office: 910.796.7331
Fax: [phone]

REC'D MAR 2 5 Z011
March 16, 2011
Kelly Johnson
NCDENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Tortuga Lane
Dear Ms. Johnson,
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 Low
Density Permit Application for Tortuga Lane. 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. A 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'.
3. One (1) copy of the `Stormwater Management Permit Application Form'.
4. One (1) copy of the `Wet Detention Basin Supplement'.
5. One (1) copy of the most current property deed.
6. One (1) copy of the `Stormwater Management Permit Application Narrative'.
7. Two (2) copies of the `Stormwater Plans'.
Please do not hesitate to contact our office if you have any questions, comments, or require any additional
information.
Regards,
CAV NAi.
illiam G. '.
Attachments
IATES, P.A.
.E.
cc: J. Michael Moore, Town Manager, Town of Surf City
RECEIVED
MAR 2 5 2011
BY: