91-96 Letter of Refinement 2015 Bald Head Island Limited LLC

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R. van der Vaart
Governor Secretary
March 12, 2015
RECEIVED
Mr. Bruce Marek
PO Box 3069 MAR J H 1015
Bald Head, Island, NC 28461
Dear Mr. Marek:
This is with reference to your request to modify State Permit #91-96, acting as agent for Bald
Head Island Limited, LLC. The permit was issued on June 3, 1996 and expires on November 15,
2016. The action proposed in your submittal, as submitted in your March 2, 2015 request, is to
modify the dimensions of the ferry maintenance dock. The dock was originally authorized at 95'
in length by 8' in width. The modified dock would include a 16' in length by 10' in width
floating ramp landing platform connecting to a 70' in length by 6.25' in width dock. Ferry access
dock steps leading to a cantilevered platform would be constructed approximately midway along
the dock. Twelve dolphin pilings, each consisting of 4 pilings, are also proposed along the dock.
In reviewing the information provided, the Division of Coastal Management has determined that
the proposed action is consistent with existing State rules and regulations and is in keeping with
the original purpose and intent of the permit. This Letter of Refinement authorizes the
modification of State Permit #91-96, as described in your letter dated March 12, 2015 and plan
labeled "Sheet: Deep Point Marina Floating Maintenance Dock", dated March 12, 2015. All
permit conditions remain in effect.
Please note this refinement does not authorize any work not expressly described above, nor does
it eliminate the need to obtain any other additional state, federal or local permits, approvals or
authorizations that may be required. By copy of this letter we are also notifying the U. S. Army
Corps of Engineers and the NC Division of Energy, Minerals & Land Resources of our action. If
you have any questions concerning the above or if I can be of any other assistance, please advise.
Sincerely,
Debra Wilson
District Manager
cc: Jonathan Howell, DCM Wayne Strickland, LPO
Tyler Crumbley, COE Wilmington Files
Chad Coburn, DWR
127 Cardinal Drive Ext, Wilmington, North Carolina 28405
Phone: [phone]\ Intemet: www.ncdenr.gov
An Equal Opponunity \ Ai6rmabve Action Er pbyer - Made in pat by recycled paper

Bruce Marek, P.E.
P. O. Box 3069
Bald Head Island, NC 28461
910-228-2484
March 12, 2015
Ms. Heather Coats RECEIVED
NCDENR Division of Coastal Management MAR 1 g P05
127 Cardinal Drive Extension u` i
Wilmington, NC 28405
Re: CAMA Permit #91-96 Letter of Refinement Request: Deep Point Marina Floating Maintenance Dock
Dear Ms. Coats:
I am submitting 5 copies each 11 "x17" of my 3-12-15 seal date drawing "Deep Point Marina - Floating
Maintenance Dock" in support of this Letter of Refinement Request for Bald Head Island Limited, LLC.
Per our conversation yesterday, I could not submit both a parallel and perpendicular floating dock
alternative. This morning the decision was made to go with the as permitted perpendicular floating
dock.
An 8'x95'Fioating (Marine) Maintenance Finger has been in the Deep Point CAMA # 91-96 Permit since
at least 2009. Today's drawing is based on a/ my 5-13-09 seal date L.O.R. drawing. As you are aware,
CAMA #172-87 Minor Modification dated 1-15-15 allows for the re -configuration of the A -Dock slips at
Bald Head Island Marina. The reconfiguration eliminated one of the 70' x 6.25' +/- floating finger
docks. We wish to repurpose that floating dock and use it as the never built permitted 95' x 8' ferry
maintenance dock at Deep Point. We request to add a 10' wide x 16' Rooting dock, with an angle
gusset as depictied in the drawing, as the ramp landing floating dock.
With this Letter of Refinement Request, we are indicating extending the existing marine maintenance
holding tank pump -out lines to service the subject floating dock. As we are still unsure if the existing
pump can handle the extra length, we would like to qualify this request to allow installing a sufficient
size pump -out pump at the floating dock. If this qualifies for a State /CAMA grant, please advise us of
whom we should contact.
I have listed 16 items of "Anticipated Typical Dock/Marine Maintenance Items" that I feel are/should
be part of this project. It may not be totally complete, as the marine maintenance department may
have additional needs for maintaining the ferries. If any item(s) are not permit -able, please permit all
that are allowed. The 70' dock has already been delivered to Deep Point for final positioning.
If you have any questions and/or comments, please call me at 910-799-9245 or my cell 228-2484.
Additionally, when the Letter of Refinement is completed, please e-mail me a copy. Thanking you in
advance for attention to this matter. GpROLN
OQ�o�SSIOygi:9
Z ..
ra gEP� _
Bruce Marek, P.E.
Cc: Jim Henry, Bald Head Island Limited, LLC
Director of Planning & Development
Ben Traynham, BHI Harbormaster
Claude McKernan, BHI Transportation Mgr
Na
RECEIVED
DCM WILMINGTON, NC
MAR 1 2 2015

Y" a
RECEIVED
8'X 95'
FDMD DOCK PER
LDR 10-22-07 F'DMD
F'EM UFT sYSM
(Not in immediate plain
at this time but to
remain in permit for
future consideration)
81 95' FLOATING —
DOCK, From 5-13-09
IAR DWG (Or earlier)
Subject o1 this LOR
Proposed repurposing of
70'ze.25• floating dock
from Bald Head Island
Marina A -Dock
Reconfiguration (CAMA
172-87, January 15. 2015
Minor Mod)
RAI
misin miss sea as,
Permit Conditions from 5-13-09 EMPE Seal Date Drawing
som less saw was s ass
9....... Ad' 2P. 10. ". �.
&.AM MPT DCJ12 w/aelra6 DC111
This entire list is new. Not shown as red for clarity.
,. PµOLUy ''' .,
For: Bald Head Island Limited, LLC
G A
''ii
[
Planning Dept.
Q��yStONkf
���7
CAMA 91-96 LETTER OF
REFINEMENT
REQUEST DWG:
-Z:� FPS =_
- a S
REVISE B'X 95' (UNBUILT) DEEP
4r.
POINT MARINA MARINE
MAINTENANCE FLOATING DOCK
G.
EN•'�G.
(From 5-13-09 seal date
g'
' E" PM
O. R. drawing) to use
'
repurposed 6.25't x 70't
Floating Dock from Bald Head
Island Marina A -Dock
Reconfiguration (CAMA 172-87
Minor Mod 1-15-15), and
adding a 10'x16' nominal
77 ^ c�
ramp landing dock as shown.
CT r'
o
01
N rt
e,N `y
o
y"y�ti
r�IratM
4—
�
i
we Was
This drawing better defines
items associated wth the
floating dock installation.
A set of wood dock stairs are
indicated about j the way out
on the 70' floating dock.
This will be positioned to
best fit the 3 different sized
ferries that will need access
from the floating dock. A
cantilevered platform is
shown, similar to what is on
the maintenance pier.
Also indicated is the intended
provision to add a second
marine maintenance holding
tank pump out station on the
floating dock, either by
extended piping or addition
of second pump.
Hurricane tie-up dolphins are
H EC E I V ED better defined.
DCM WILMINGTON, N
general, revised items are
MAR 1 2 2015 in red.
LIST OF ANTICIPATED TYPICAL DOCK ARINE MAINTENANCE ITEMS TO BE INCLUDED N1TH TH FLOATING DOCK
x u ose w on o na scan urn ion
UMKINorninal Vpx luxio
o re u ose an existing x ramp or purchase new auminum ram size o e a ermn
3. FERRY A CESS STEPS On 70floatin d Sim t Maintenance Pier for Eas Accessto BoardingGate
4. ELECTRICAL P DES ALS: 1 20B Volt 3 Phase ore Power Pedestal exists at o x ram location I ward of bulkhead cap
Add 1 208 Volt 3 Phase + 23 110 V Ll ht Pedestals on noatln Dack Positions
D. With Has s Gn Outlets
. FIRE EXTINGUISHE RUNTS: PER N A :T a ABC 75 Max di Fence to
fire extinguisher, plus myother NFPA t
6. RING BUOYith Line
FLOATING7. DOCK M. .. LA D
endent on Hurricane Dolphin Installation: only 5twor Dollard
A r or or ram a k d an + wa er + a e en
1. P.T. TIMBER DOI I am —ter or a ter. fee o our ie hins: d ns II
12, H L ING TANK UM OUT Passible extension of existings em M intenonce Piar New m —out If insufficient head.
ff H MAKINA NUN
14. : For Marine Maintenance Purposes:
1 ACONNF-11014 DECK OVER BULKHEAD: P.T. Wood C;onsbuclilons to A—D Docks.lows Van ono ore
over ectric cab es wa er and -was a lines oww ea own ramp m to ralandingdo
Bruce Marek, P.E.
P.O. Box 3069 Bald Head Island
North Carolina 28461
[phone]
DEEP POINT MARINA
FLOATING MAINTENANCE DOCK

7*2
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
March 12, 2015
Mr. Bruce Marek
PO Box 3069
Bald Head Island, NC 28461
Dear Mr. Marek:
Donald R. van der Vaart
Secretary
RECEIVED
MAR 16106
k4t;�-4vAl)H }� r
h•i
This is with reference to your request to modify State Permit #91-96, acting as agent for Bald
Head Island Limited, LLC. The permit was issued on June 3, 1996 and expires on November 15,
2016. The action proposed in your submittal, as submitted in your March 2, 20I S request, is to
construct a temporary parking lot outside of the 30' Estuarine Shoreline buffer and partially
within the 75' Estuarine Shoreline Area of Environmental Concern (AEC), adjacent to the
Harbour Master building and pool.
In reviewing the information provided, the Division of Coastal Management has determined that
the proposed action is consistent with existing State rules and regulations and is in keeping with
the original purpose and intent of the permit. This Letter of Refinement authorizes the
modification of State Permit #91-96, as described in your letter dated March 2, 2015 and plan
labeled Sheet CI- Deep Point Marina Harbour Master Temp Parking Lot, dated March 2, 2015
(received by DCM March 3, 2015). All permit conditions remain in effect.
Please note this refinement does not authorize any work not expressly described above, nor does
it eliminate the need to obtain any other additional state, federal or local permits, approvals or
authorizations that may be required. By copy of this letter we are also notifying the U. S. Army
Corps of Engineers and the NC Division of Energy, Minerals & Land Resources of our action. If
you have any questions concerning the above or if I can be of any other assistance, please advise.
Sincerely,
V-4f" 01
Debra Wilson
District Manager
cc: Jonathan Howell, DCM Wayne Strickland, LPO
Tyler Cmmbley, COE Wilmington Files
Dan Sams, DEMLR
127 Cardinal Drive Ext, Wilmington, North Carolina 28405
Phone: [phone]\ Internet: www.nodenr.gov
An Equal Opportunity 1 AftirnuiWa Action Employer— Made in pat by raWde0 papa

Bruce Marek, P.E.
P. O. Box 3069
Bald Head Island, NC 28461
910-228-2484 RECEIVED
March 2, 2015
MAR 16 10$
Ms. Heather Coats
NCDENR Division of Coastal Management"N�Nn,t
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: CAMA Permit #91-96 Letter of Refinement Request to Build a Temporary 25 space asphalt
parking lot outside of the 30' Marina Buffer and partially within the 75' Marina AEC at Deep Point
Marina, 1301 Ferry Road, Southport, NC
Dear Ms. Coats:
Included are five 24" x 36" copies of drawing Cl-Deep Point Marina Harbour Master Temporary)
Parking Lot, dated & sealed 3-2-15, for the Bald Head Island Limited, LLC owned Deep Point Marina.
As we have spoken, we are approved by both by CAMA and Stormwater SW8-951012 for 7500 sf of
building roofiine in the gross area landward of the retaining wall that is along the 30' marina buffer line.
As it works out, including the entrance and the potential exit, the asphalt lot is tributary to 3 stormwater
drainage basins. The largest part of the temporary lot, in drainage basin DB17A, has 7146 sf of
Allowable BUA. As drawn, including a 4" rock perimeter and 1' entrance curb, we are proposing using
7140 sf of that allowed amount. The entranceway is in drainage basin DB 25-1, which has an
allowable BUA of 39,537 sf, mostly for the future hotel and restaurant. With curbing I have designated
620 sf impervious, which is less than the 1100 sf that was tributary to DB25-1 frome one of the original
50'x50' roofiines. And lastly, there is 30 sf exit slab of 8"-10" thick concrete concrete in DB17, which
includes the existing marina parking lot, the "BHI oval" and the Harbour Master Store. This is in lieu of a
105 sf entrance walk for the still future 7500 sf building.
Within the three areas, my total is 7140 + 620 +30 = 7790 sf. A mere 0.6% of the 1,208,772 sf of Built Upon
Area Permitted for this mainland departure point/Parking Facility for the Bald Head Island Ferry.
Cl has plenty of background information, but I am also including one copy of 4 pages of the
December 17, 2008 Stormwater Permit Modification so that you can verity my Drainage Basin 17, 17A
and 25-1 numbers. I will be using the same Cl drawing for a stormwater plan revision if you or
Stormwater/DWQ deem it necessary.
Respectfully,
Bruce Marek, P.E.
For Bald Head Island Limited, LLC Planning Dept.
Enclosures
cc: 11m Henry, Director, BHI Planning & Development
Ben Traynham, Harbor Master
�,,•`�
2QQo ES§IOiy�')'q /J
SEAL
15684 =
..FiyGI......
ly 1 C EIV WILM NIG ON, NC
MAR U I "' MAR 0 3 20t

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins Director
Division of Water Quality
December 17, 2008
Mr. Stephen 0. Robertson, Chief Operating Officer
Bald Head Island Limited, LLC
P.O. Box 3069 RECEIVED
Bald Head Island, NC 28461 MAR 16 20
Subject: Stormwater
Permit
No. SW8 951012 Modification
Deep ` t° twn xa
High Density Project
Brunswick County
Dear Mr. Robertson
The Wilmington Regional Office received a complete, modified Stormwater Management Permit
Application for Deep Point Marina on December 16, 2008. Staff review of the plans and specifications
has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in
Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 951012 Modification for the construction
of the subject project.
This permit modifies and replaces all previous permits and revisions issued for this project prior to this
date. This permit shall be effective from the date of issuance until February 15, 2017, and shall be
subject to the conditions and limitations as specified therein. Please pay special attention to the
Operation and Maintenance requirements in this permit. Failure to establish an adequate system for
operation and maintenance of the stormwater management system will result in future compliance
problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150E of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings, 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 Linda
Lewis, or me at [phone],
Sincerely,
Georgette Scott
Stormwater Supervisor
Division of Water Quality
GDS/arl: S:\WQS\STORMWATER\PERMIT\951012Mod.dec08
cc: Karen Valiquett, P.E., WK Dickson R Co., Inc.
Delaney Aycock, Brunswick County Building Inspections
Jeff Phillips, Brunswick County Engineering
Division of Coastal Management
Linda Lewis
Wilmington Regional Office
Central Files t j�
✓YB�NfN/!//a
RECEIVE
North Carolina Division of Water Quality l27 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] d�'WwgNG7
Wilmington Regional Office Inirnet: svwsv.ncsvalergqaitvorg Fax [phone]
An Equal Opportunity/Affirmative Action Employer- 50%Recydedlf0%Post Consumer Paper

State Stormwater Management Systems
Permit No SW8 951012 Modification
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
RECEDED
STATE STORMWATER MANAGEMENT PERMIT MAN 1 B
205
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
Stephen O. Robertson and Bald Head Island Limited, LLC
Deep Point Marina
Bald Head Island, Brunswick County
FOR THE
construction, operation and maintenance of two (2) wet detention ponds, twenty-four (24)
infiltration basins and six (6) infiltration trenches, in compliance with the provisions of 15A
NCAC 2H .1000 (hereafter referred to as the "stormwaterrulesl 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 February 15, 2017, 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 1.7 (24 infiltration basins), Section 1.8 (6 infiltration trenches) and
Section 1.9 (2 wet detention ponds) on pages 3 and 4 of this permit. The total BUA for
this project is 1,208,772 square feet.
3. The tract will be limited to the amount of built -upon area indicated on pages 3 and 4 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.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system.
6. This protect proposes that some of the basins will be interconnected and work together
T provide the required minimum storage volumes. The storage volume provided is based
on a controlling elevation which is the highest common elevation shared by the basins in
that system prior to overflow. No storage credit is given for volume stored in the pi
D
lot. 3CM 4VILMINGTOK N
Page 2 of 10 MAR 0 3 2015

State Stormwater Management Systems kCt,I,,,.o
Permit No SW8 951012 Moditicatian, w
7. The following design criteria have been provided in the infiltration basins and must`Ub
maintained at design conditions:
Combined Storage In Resins 14 2.3. #A,10,11812
Infiltra0on Basins
Units
Bait 1A
Bain 2
Basin 3
Beam 9A
B pn
Bain 4
Basin 7
a, Drainaae Area
Acres
234
1.61
Im
1.53
1.55
1 1.70 1
275
1.34
A5
onsfte
fir
101747
55943
60116
65530
67491
1 74084
1 119797
58301
19W
o8aile
b. Total BUA
fir
38684
53M4
47047
NONE
1 23M I 55i80
1 61476
1 7fi041
I40382
9008
c. Desi n Storm
d.BasIn
In
Fl
2.0
2.0
2.0
2.0
&0
3.0
20
1.0
1.8
ib
a. Bottom Elevation
FMSL
16.0
18A
%o
1 16.0
1 15
1 18
1 17.0
18.0
18.0
I. Bottom surface Area
fit
310
449
36
aw
11
OMB T
7908
2808
955
Bypass Weir Elw.
FMSL
1&0
18.0
1&0
I 18.0
18.0
TO
18.0
19.8
17.6
h. Permitted Slor. Vd.
W
28502
8088
1 2270
I 13293
f3927
10112
18118
14582
2447
L Type of SO
WA
Wando
FIne Ssnd
1. Mellon Rate
k. SHWT
(Whr
FMSL
1 .0
1 12.0
13.0
20.0
14.0 12A
14.0
13.0
14.0
13.0
L Draw Dann The
Hrs
38
34
90
2 38
14
3
4
3
m.RecSlreendlaverBasin
NIA
mWndKeaWmWAreWCPF17
n. stream Index No.
WA
1
1&8&3.5
0. classification
1 WA
I
.sc,
Infi tlon Basins
Units
Basin 13
Bain 14A
Bain 17
BeNn
Bala
Bain
Bain
20
Badn21
Bain
23a
17A
10
19
aDrainage Area
Acres
0.60
1 .43
1.89
1 .21
1 2.20
4.39
1.64
0.10
0.fil
Onsite
ftt
-ti-851
18471
82125
1 9335
1 95966 1
191281
80021
4351
19846
ofiate
b.Total BUA
nr
ft=
18867 1 3479 1 80487 1 7146
NDNE
55114 107449 44619 1127 5817
0.005190 tom
d. Basin DeDIh
In
R
3.94
1 1.0
2 0
1 3.5
3.0
1 5.3 4.0 3b
1.0
0.8
a. Botom Elevation
FMSL
13.0
16.10
10.0
9b
4A 7.0 5A
1&0
17.0
L BoVanSudeceArea
ft'
459
691
6197
514b
783 5�6 1219
195
1326
a. Bypass Weir Elev
FMSL
1&94
1 17.0 1
12.0
1 13A
1 9.3 11.0 fib
19.0
VA
h. Pemdlled Stor. Vol.
fP
7800
1 2751 1
16061
1 Win
I T5958 30624 11460
398
1585
I. Typo of Solt
WA
WarMo
Fine Sad
1. Infillra0on Rate
k.SFIWT
FMSL
FM
20.0
11.0 12.0 8.0 8.0 2.0 6.0 20 16.0 14.0
I. Draw Dmwr Time
Fka
12A 2.0 3b 4 21 5.4 11.0 2.0 7.0
mRecSOeandPoverBasin
WA
ResUkted AreafCPF17
n. Stream index No.
WA
18$63.5
a. amsiftcaffon .
WA
I 1W
RECEIVED
DCM WILMINGMN, N'
MAR 0 3 Z015
Page 3 of 10

State Stormwater Management Systems
Permit No SW8 951012 Modification
Infiltration Basins
Units
Basin 24
Basin 25.1
Basin 25 2
Basin 25.3
Basin 25-4
Be51n3l
a. Drain a Area
Acres
0.57
0.41
0.62
.13
0AU
17553
0.53
23211
Onsile
ft2
24641
1 81339
1 26915
5580
outs
b. Total BUA
ftr
ft2
19472
1 39537
14619
NONE
2366
12600
11609
C .Desl n Storm
d. Basin De III
In
Ft
2.0
2.0
2.5
3.0
1.0
2A
4.8
e. Bottom El ad
FMSL
7A
7.0
18.5
15.0
7.0
990
4.0
11
f. Bottom Sudac I Area
ft=
2239
4077
602
440
9.1
8.8
B Weir Elev.
FMSL
9.0
5727
9.0
1 10902
21.0
3723
16.0 .
1 6139
301
2 970
h. Permitted Stor. Vol.
fts
wando Flne
Sand
I. Type of Soil
NIA
WIIWlion Rate
k. SHW7
INhr
FMSL
6.0
4.0
16.5
'0•0
12.0
2.0 1
2.0
I. Draw Down Time
Hrs
2.8
1 2.8
1 7.2
2
�0
m.RecStrewMverBasin
WA
Soul 1�d�
CPF17
n. Stream Index No.
WA
188-8841.5
o. Water Body ClassY.
I NIA
I
Sc.
8. The following design criteria have been provided in the infiltration trenches and must be
maintained at design conditions:
tion Trenches
Units
Trench 5
Trench 14
Trench 15
Trench 16
Trench 27
Trench 30
a Area:
Arras
1W5
0.57
0.62
0.59
0.607
0.46
ite:
ft
46,807
24,928
27,065
25,804
22,091
19,669
site:
f
0
0
0
0
0
0
mpervious Surfaces
ft
34,173
20,859
16,410
24,914
5,968
4,964
ite:
ft
34,173
20,859
16,410
24,914
5,968
4,964
ite:
C
f
0
0
0
00
n Storm:
Inches
3.0
h Dimensionsgth
146
88
130
1th
Feet
125
Feet
608
38ight
Feet
1.92
1.67
2.67
2.67
t.92
1.92
e.
Perforated Pipe Diameter:
Inches
15'
122
24'
24'
15'
15'
Length
Feet
3,497
2,850
846
1,224
682
577
f.
Bottom Elevation:
FMSL
17.09
14.07
13.26
13.07
10.0
11.0
g.
Storage Elevation:
FMSL
19.01
15.74
15.93
15.74
11.92
12.92
h.
Permitted Storage Volume:
ft
8,470
5,072
4,199
6,123
1,654
1,395
i.
Type of Soil:
Wando Ftne Sand
J.
Expected Infiltration Rate:
In/hr
20
k.
SHWT:
FMSL
15 12 11 1 11 8 9
i.
Time to Draw Down:
Days
1.3 1.1 2 1 2 1.3 1.3
Receiving Stream/
Southport Restricted Area I CPF17
M.
River Basin:
n.
Stream Index Number:
18 883.2
o.
Classification of Water Body:
Sc'
. RECEIVED
DCM WILMINGTON. "'
Page 4 of 10 MAR 0 3 2015

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x 3.5' Depth=1801 sf Permitted Vol.
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Infiltration Basin #17A
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DB 17A 9335 sf Area
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` 7146 sf Allowed BUA
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` Original Drainage Basin 17A Premise
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Infiltration
Basin
#17
Drainage Basin }_
25-1:61,339 sf
Allowed BUA 1 .4.
39,537 sf 1
(Includes_, 1 "�
Future Hotel & {
Restaurant)
Drain Inlets 00
to Infiltration o
Basin 25-1
�i
I JT�
a i Sidewalk: 165.58'3
w Para
wllel to Ret Wsl
Lin ,
Design Plans: 165.4'
Red Items are Changes
34 space paved parking lot
DB 17 82,125 sf Area
lowed BUA 60, 87 s
L:.'^;YJ N 4!:i>'��•'\eThw�a� .YOU'•fI: 'r: � )
17 A hlt 11 '8 wrok
a xi ti g p r i to
7500 sf Building N
rma Proposed Temporary 25 �
pc asp atlo 0
1 8' Sp of 10 '8 w oc
( o s l a cons ructed In future
STONE NETAMM WAIL.
AT W 0" Blla{D
TOP EIEV - 10.6 t
Wood Falk EL-6.67t
D1 BLK D7 EL=5.63'*
J. C
-4—
Bldg Fo
4 11 :� 1100 sf
0 Oct .. - 625,
ot ' + 30t nth
`o w rem
30 sf on
105 s DE
A AEC
Crete
Harbour
ards4. `
Master
the
105 sf Building
g
17 ,li•
& Pool
30' MARINA BUFFER
2p. qD: �. *.
aLA T®T -cYi T/eil TCYl
Deep Point Marina
Scale: V-40' When Printed on
REQUEST TO BUILD TEMPORARY
25 SPACE ASPHALT PARKING LOT
IN LIEU OF PERMITTED 7500 SF
OF BUILDING ROOFLINE(S)
Google Earth Screen Capture: Marina
Retainiing Wall to Exist Parking Sidewalk:
Structure 10 Design Plans: 65.4't (Pere to Wall)
1100 sf Roofprint DB 17
in DB 25-1 DB 17 DB 17
r--165' t CAMA 7500 sf Mixed Use Bldg—. .0. — _ —
r — — — — —
W 50 noor
— — — — — i
Or CAMk
Orig CAMA
Orig C A
-fit 4ctur� 1
NI
Structure 11
Structur`-1.2-
\y /�
Three 50x50'
TDB
5-1 X
Roofline Areas =
Blue Dashed Line
7500 sf
is 7500 Architect
! 1_
Roofline
DB 17A
-+r1W
30' MARINA BUFFER i
From Stormwater SW8-951012 Mod(2008): Three 50'x5O'Roofline Bldgs= 7500 sf
CAMA 91-96 Permit (Structures 10-12) now 7500 sf "Architect Shaped Roof"
Drainage Basin 17A Boundary (Magenta Dashed) 9335 sf, 7146 sf Allowable BUA
(Temporary) Parking lot design is for 6980 sf of asphalt pavement in DB17A.
Proposed DB17A BUA is 7140 sf with 4" rock perimer + 1' curb at entranceway
as indicated.
NOTE: Upper Left Boundary follows one of original 45' Angle Hip Lines
Drainage Basin 25-1 (61,339 sf) is to left of DB 17A
DB 25-1 has an allowable BUA of 39,537 sf, which includes the future hotel
and restaurant. 1100 sf of Structure 10 Roofline is in DB 25-1
Proposed DB25-1 564 sf of asphalt entrance way (620 sf BUA with 1' Concrete
Curb) is in lieu of the 1100 sf Future Mixed Use Building Roofline.
DB 17 includes the existing Harbour Master Parking Lot, Turnaround "BHI Oval"
and Store. Drainage Area DB17 = 82,125 sf, with 60,487 sf Allowed BUA.
Entire Harbour Master Complex is not yet built. There is a 30t sf connection
piece from the parking lot to the oval. This is proposed as 8"-10" thick
concrete, with removable bollards, to allow boat trailer or emergency vehicle
drive thru access. Drawing shows the 30 sf as a "swap" from a (future)
building entrance walkway.
PARKING LOT INCLUDING CURB, ROCK PERIMETER AND CONCRETE
= 620 SF + 7140 SF + 30 SF = 7790 SF
o`PSH CAgo
N
O'pF ESSip., !i2
.; QP �y
SEAL 3�z
_ 15684
T MARINA
CAMA 91-96
Letter of Refinement Dwg.
STORMWATER SW8-951012 Mod
Plan Revision Dwg.
MARCH 2. 2015
6l rek! P.E. C1 — DEEP POII
P.O. Box 3069 Bald Head Island 28416 HARBOUR MASTER TEMP
RFC,E/VT�o
r�1dg
7
INC
MAR 0 3 2015