19951012 Ver 1_COMPLETE FILE_19960416

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BALD HEAD ISLAND
PLANNING DEPARTMENT
FAX TRANSMITTAL
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FAX NO. -
FROM:
FAX NO.
SUBJECT:
7 `7?3 E C E 1 V E
qiv - ikq- ti- -743 APR 161996
APR 12 19A

D E M
PROJ #
5IV 0-9,6/oil
We Tran mit:
(dHerewith
( ) Under separate cover
For Your:
() Approval
O eview & Comment
(eUse
The Following:
Copies (including this cover sheet)
DESCRIPTION

LA YEA

PO B= 3069, &W Head W=d, Nardi Caraiim 284610 (910)457--7515 0 FAXMOW--7463
BRUCE MAREK, P.E.
1502 FISH HAWK CT.
WILMINGTON, NC 28403
Ph: 910-799-9245 Fax: [phone]
April 8, 1996
PFIZER TRACT STORMWATER
SUBMITTAL REVISIONS DEHNR #SW8-951012
Ms. Linda Lewis
State of North Carolina
DEHNR, Water Quality Section
127 Cardinal Drive
Wilnungton, NC 28405
Dear Ms. Lewis,
Accompanying this letter are the revisions to the above referenced stormwater project per
your 4/4/96 letter. Included are Drawings: Rev 2: 4/8/1996 # SW1, & SW2. Drawing #S1,
which did not change since Rev 1: 3/12/96 was not reprinted. As per our telephone
conversation today, I had skipped printing out the 93% areas for the sections tributary to wet
pond, and went directly to the composite C of .90 x total area for use in determining the
Rational Volumes. The calcs also are shown for required pond surface area at permanent
pool using an interpolated area multiplier of 8.2%. 1 am including the calc sheets as 8 1/2"x
11" sheets in addition to their being located on the drawings.
I have a call in to Dan Weeks about the Operations & Mainten^nce Plan. (2 pages 8.5" x 11
We'll fax again with approval on the wet retention pond part.
Please let me know if there is any aduitional information you need.
Sincerely,
Bruce Marak, P.E.

BRUCE MAREK, P.E.
1502 FISH HAWK CT.
WILMINGTON, NC 28403
Ph: 910-799-9245 Fax: [phone]
April 8, 1996
PFIZER TRACT STORMWATER
SUBMITTAL REVISIONS DEHNR #. W8-951012
Ms. Linda Lewis
State of North Carolina
DEHNR, Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405
Dear Ms. Lewis,
Accompanying this letter are the revisions to the above referenced stormwater project per
your 4/4/96 letter. Included are Drawings: Rev 2: 4/8/1996 # SW1, & SW2. Drawing #S1,
which did not change since Rev 1: 3/12/96 was not reprinted. As per our telephone
conversation today, I had skipped printing out the 93% areas for the sections tributary to wet
pond, and went directly to the composite C of .90 x total area for use in determining the
Rational Volumes. The calcs also are shown for required pond surface area at permanent
pool using an interpolated area multiplier of 8.2%. I am including the calc sheets as 8 1/2"x
11" sheets in addition to their being located on the drawings.
I have a call in to Dan Weeks about the Operations & Maintenance Plan. (2 pages 8.5 x 11
We'll fax again with approval on the wet retention pond part.
Please let me know if there is any additional information you need.
Sincerely,
Bruce Marek, P.E.
E C E I V E
D
APR 1 1996
D E M
PROD #
. I
PFIZER
PFIZER TRACT STORMWATER CALCULATIONS Rev.# 1 3/12/96
For: Bald Head Island Planning De rtment Note: Bold faced letters are in puts)
Wet Detention Basin per DEM Stormwater Management Rules dated Se tember 1, 1995
Pfizer Tract Southport, NC Brunswick County Deed Book 260 Page: 374 Majority of Site These calculations have been confirmed
171.83 acres Deed Book 296 Pa e: 1009 Portion of B b the undersigned engineer for use as a
Deed Book 260 Page: 380 Portion of B preliminary basis for site stormwater design.
Receiving Waters: Southport Restricted Area Class SC
PRELIMINARY PRELIMINARY Please note that these parcel designations
PARCEL LAND USE ACRES SF PER CENT IMPERVIOUS are for land use, not necessarily the same
Non-Residential Developed COVERAGE as drainage flow area boundaries. Impervious
A Resort & Residenial Parking 22.0 acres 93% 20.5 acres coverage does not include runoff coefficient.
B Future Development 56.5 acres 30% 17.0 acres
C Employee & Contractor Parking 4.7 acres 93% 4.4 acres BRUCE MAREK, P.E.
D Adm./OfficeslWhse&Receivin 3.0 acres 60% 1.8 acres 1502 FISH HAWK CT.
E Future Development 11.5 acres 30% 3.5 acres WILMINGTON, NC 28403
F Marine Maintenance 1.0 acres 90% 0.9 acres Ph: 910-799-9245
Structures Fax: [phone]
1 Information Center 0.15 acres 6400 SF 100% 0.15 acres
2 Gatehouse 0.01 acres 500 SF 100% 0.01 acres
3 Marine Maintenance 0.18 acres 8000 SF 100% 0.18 acres
4 Employee & Contractor Ferry Landis 0.15 acres 6400 SF 100% 0.15 acres
5 Resort & Residential Ferry Landing 0.23 acres 10000 SF 100% 0.23 acres e?et4ss?er
6 Resort & Residential Waiting Area 0.22 acres 100% 0.22 acres a° o
infrastructure ..•••••.• °°
Roadway 11.0 acres 100% 11.0 acres n? °• °
Pavement 2.0 acres 100% 2.0 acres : •
Miscellaneous ° • EA1 l• j4
Wetlands 27.3 acres 0% 0.0 acres s m
Open Space includes Wet Pond 26.4 acres 0% 0.0 acres
Marina 5.5 acres 0% 0.0 acres

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Total 171.8 acres 36.0% 61.9 acres °®° C' "••.°.°•°®.®°` ®?°

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FIRST PHASE OF DEVE LOPMENT Parcel B & E stormwater does not drain to proposed wet retention pond) 00008004
High Density Developmen t: Allowable with wet retention ponds & infiltration swales per NC Stormwater.1005; .1008
Project without Parcel B and E 103.8 acres 39.9% 41.5 acres
- Wetlands, Open Space, Marina -59.2 acres Approx Impervious
PROPOSED DEVELOPED ACREAGE 44.6 acres
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MAR 131996
STORMWBH.XLS PROJ #ME '1S ICI Z. Prepared by: Bruce Marek, P.E.
3/13/96
L .
DRAINAGE AREA CALCS
PFIZER TRACT STORMWATER CALCS FOR AREAS FOR INITIAL DEVELOPMENT rev#2: 418/96 by: Bruce Marek, P.E.
C = 0.95 C = 0.20 EFFECTIVE RAINFALL
DRAIN Approx. Total Area Impervious Impervious Pervious WEIGHTED TRIBUTARY 1.0..
PARCEL AREA Area SF Rounded Acres % Area Acres % AVERAGE AREA VOLUME
# (cad calc) SF C x total area
AREA TRIBUTARY TO WET RETENTION POND
Portion A trib to pond 1 694011 694100 15.93 acres 93% 14.8 acres 7% C = 0.90 14.3 acres 51913 cu ft
Portion C + Road 2 223001 223100 5.12 acres 93% 4.8 acres 7% C = 0.90 4.6 acres 16686 cu ft

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;???????„•:,:..._ 93% 19.6 acres C = 0.90 18.9 acres

(90% Impervious = 7.9% Surface Area R d.

(100hlmpervious = 8.8%Surface Area Regd.) 68599 cu ft

INFILTRATION SWALES: Soil is mostly sand based, infiltration > 15 inches/hr DESIGN RAINFALL 1.6"
Design Volume for 1.5" Rain; Infiltration area based on bottom width+ 50% of side area; Infiltration rate > approx 4.5"/hr contains 8" 24hr storm BOTTOM SWALE SWALE SWALE
VEGETATED SWALES: 3:1 SIDE SLOPES; BOTTOMS APPROXIMATELY LEVEL; BOTTOM OF SWALE TO GROUND WATER MIN 2'. WIDTH DEPTH VOLUME BOTTOM
WEIGHTED SWALE
AVERAGE LENGTH Reqd Volume elevation
Roads&Misc 3 120434 120500 2.77 acres 30% 70% C = 0.43 580 LF 88 SF/LF 11.0 CF/LF 3.00 ft 1.50 ft 11.3 CF/LF 17
Roads&Misc 4 93315 93400 2.14 acres 40% 60% C = 0.50 650 LF 72 SF/LF 9.0 CF/LF 2.00 ft 1.50 ft 9.8 CF/LF 17
Roads&Misc 5 40869 40900 0.94 acres 35% 65% C = 0.46 350 LF 54 SF/LF 6.8 CF/LF 2.00 ft 1.25 ft 7.2 CF/LF 18
Roads&Misc 6 60387 60400 1.39 acres 60% 40% C = 0.65 310 LF 127 SF/LF 15.8 CF/LF 2.00 ft 2.00 ft 16.0 CF/LF 12
Roads&Misc 7 151263 151300 3.47 acres 45% 55% C = 0.54 650 LF 125 SF/LF 15.6 CF/LF 2.00 ft 2.00 ft 16.0 CF/LF 10
Roads&Marina 8 200000 200000 4.59 acres 70% 30% C = 0.73 850 LF 171 SF/LF 21.3 CF/LF 3.00 ft 2.50 ft 26.3 CF/LF 5
Marina&Misc

F & Roads 9

11 25310

95000 25400

95000 0.58 acres

2.18 acres 60%

90 /• 40%

10% ,C= }0,.65
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C = 0.88 y1,50?. LF
. aGSift.`1.Rt..,:

500 LF 110 SF/LF
. 7:??.c'7l`?ih'.,

166 SF/LF 13.8 CF/LF
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20.8 CF/LF 3.00 ft
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D & Roads 12 135888 135900 3.12 acres 60% 40% C = 0.65 1200 LF 74 SF/LF 9.2 CF/LF 2.00 ft 1.50 ft 9.8 CF/LF 15
N, NE perimeter of C 13 18600 18600 0.43 acres 60% 40% C = 0.65 400 LF 30 SF/LF 3.8 CF/LF 2.00 ft 1.50 ft 9.8 CF/LF 15
23.54 acres C = 0.52
'
'
Proposed Area to be Developed at this time 44.60 acres C = 0.70 ?t
`,:•.•,•. `?:
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DRAINAGE SWALES to Wet Retention Pond; Bottom slope approx.5%; Max Flow <= 2.5 CFS Grass (5 CFS w/ Riprap) 2.00 ft 1.00 ft 5.0 CF/LF sloped
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APR 1 1996
PFIZERSW.XLS
D E M
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DRAINAGE AREA CALCS
PFIZER TRACT STORMWATER CALCS FOR AREAS FOR INITIAL DEVELOPMENT rev#2: 4/8/96 by: Bruce Marek, P.E.
C = 0.95 C = 0.20 EFFECTIVE RAINFALL
DRAIN Approx. Total Area Impervious Impervious Pervious WEIGHTED TRIBUTARY 1.0..
PARCEL AREA Area SF Rounded Acres % Area Acres % AVERAGE AREA VOLUME
# (cad calc) SF C x total area
AREA TRIBUTARY TO WET RETENTION POND
Portion A trib to pond 1 694011 694100 15.93 acres 93% 14.8 acres 7% C = 0.90 14.3 acres 51913 cu ft
Portion C + Road 2 223001 223100 5.12 acres 93% 4.8 acres 7% C = 0.90 4.6 acres 16686 cu ft
93%
C _ 0.90 18.9 acres
19.6 acres
68599 cu ft
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ti)ie 'tiE`ltl;1ili i'<; 52. `BE 100%Im ervious = 8.8%Surface Area Re d.
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APR 1 1996
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PFIZERSW.XLS Prepared by: Bruce Marek, P.E. 4/8/96 9:04 PM

Dfi-r Min+ Pnnrl nA--inn
PFIZER TRACT STORMWATER CALCULATIONS 1123/96
For: Bald Head Island Planning Department (Note: Bold faced letters are inputs)
Wet Detention Basin per DEM Stormwater Management Rules dated Se
Pfizer Tract Southport, NC Brunswick County ptember 1, 1995
Deed Book
260
Page: 374
Receiving Waters: South port Restricted Area (Class SC) 171.8 acres

Design Alternatives: Preliminary Calcs: 90% TSS REMOVAL; NO VEGETATIVE FILTER REQUIRED

Impervious %o. Per, Cent of site area required as surface water of permanent pond
30%' ' 2.7 2.7 3.5 2.2
40% 3.5 3.5 4.5 2.8
50% 4.3 4.3 5.6 3.5
60% 5.3 5.3 7.0 4.3
70% 6.0 6.0 8.1 5.0
80% 7.0 7.0 9.4 5.7
90% 7.9 7.9 10.7 6.5
100% .. 8.8 8.8 12.0 7.3
Pond Depth: 4.0 ft 4.0 ft 3.0 ft 5.0 ft

79800 SF 79800 SF 79800 SF
Project - B-E 1.83 ac pond 1.83 ac pond 1.83 ac pond
TRIBUTARY AREA 101.3 acres 23.2 acres 17.1 acres 28.2 acres
Impervious % 4 90.0% 90.00 90.0%
43.4 acres 20.9 acres 15.4 acres 25.4 acres
3.7% 7.9% 10.7% 6.5%
Permanent pond surface 3.8 acres
164618 SF 1.83 acres
° 79800 SF 1.83 acres
79800 SF 1.8 acres
79800 SF

Design Rainfall =
Site Volume 1.0 Inch
8.44 acre ft 1.0 Inch
t e! Acre ft 1.0 Inch
1.43 acre ft 1.0 Inch
2.35 acre ft
367859 cu ft 8477 cu ft 62150 cu ft 102308 cu ft

1 st approx depth 2.23 ft 1.05 ft --0.78 ft 1.28 ft
Slope
Top of storage aiaa 3:1
175677 SF 3:1
83416 SF 3:1
82462 SF 3:1
84205 SF
4.0 acres 1.9 acres 1.9 acres 1.!9 acres

2nd approx depth
Flood Storm + 2.16 ft
1.0 Inch 1.03 ft
1.0 inch 0.77 ft
1.0 Inch 1.25 ft
1.0 Inch
8.4 acre ft 1.9 acre ft 1.4 acre ft 2.3 acre ft
367859 cu ft 84177 cu ft 62150 cu ft 102308 cu ft
1 st approx depth
Slope 2.09 ft
3:1 1.01 ft
3:1 0.75 ft
3:1 1.21 ft
3:1
Top of Flood Storm area 186367 SF 86950 SF 85079 SF 88489 SF
4.3 acres 2.0 acres 2.0 acres 2.0 acres

2nd ap rox depth 2.03 ft 0.99 ft 0.74 ft 1.18 ft
Freeboard over Flood + 1.00 ft 1.00 ft 1.00 ft 1.00 ft
Veg slope above storm 3.1 3 :1 3 :1 3 :1
Appx area at freeboard 191583 SF 90524 SF 88616 SF 92095 SF
4.4 acres 2.1 acres 2.0 acres 2.1 acres
Reference Pond Sizing:
Square Basin at top
Rectangular: 2:1 Basin 438 ft
310 ft 301 ft
; 213 ft 298 ft
210 ft 303 ft
215 ft
Long Side: 619 ft 425 ft 421 ft 429 ft
,••
Preliminary Relative Reference Elevations:
To of freeboard Elev. 17.0 ft
16.0 ft
15.5 ft
16.6 ft ••
v
To of Flood storm Elev 16.3 ft 14.0 ft 14.5 ft 15.5 ft
To of 1" storm Elev 14.2 ft 13.0 ft 13.8 ft 14.2 ft
S
To of perm p,;d Elev 12.0 ft 12.0 ft 13.0 ft 13.0 ft
. t
Drawdown orifice Elev 11.0 ft 11.0 ft
'i 2.0 ft
2
1 2.0 ft
K
Approx Bottom of pond 8.0 ft 8.0 ft 10.0 ft 8.0 ft
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STORMWBH.XLS
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AREA-VOLUME CALCS

PFIZER
404 AREA USED AS SPILLOVER/DRAI N
Elevation Area SF Rounded Simpson Area Acres Perimeter'
5 16247 16200 1 16200 0.37 acres 813
6 32445 32400 4 129600 0.74 acres 1097
7 44367 44400 2 88800 1.02 acres 1165
8:'' 56008 56000 4 224000 1.29 acres 1251
-9 65931 65900 1 65900 1.51 acres 1392
Sum f = 524500
Spacing s= 1.0 ft
Vol = Sum f*s* (1/3) = 174833 cu ft
4.01 Acre ft

Wet Retention Basin Layer: DRAINAREAI (20' Radii for prelim design)
Elevation Area SF Rounded Simpson Area Acres Perimeter'
8 56114 56100 1 56100 1.29 acres 1815
9 61662 61700 4 246800 1.42 acres 1847
10 67612 67600 2 135200 1.55 acres 1879
11 73661 73700 4 294800 1.69 acres 1910
12 79809 79800 2 159600 1.83 acres 1942
Sum f = 892500
Spacing s= 1.0 ft
Vol = Sum f*s* (1/3) = 297500 cu ft
6.83 Acre ft

NOTE: THI S RETENTION POND WITH PERMANENT POOL = 1.83 acres
POOL DEPTH = 4.0 ft IMPERVIOUS AREA = .- 90%
CAN TAKE TRIBUTARY AREA OF 1" RAIN UP TO 23.2-acres

Wet Retention Basin Layer: DRAINAREA (20' Radii for prelim design)
Elevatior. ,area SF Rounded Simpson Area Acres Perimeter'
12 79809 79800 1 79800 1.83 acres 1942
13 92402 92400 4 369600 2.12 acres 1972 88200
14 98827 98800 2 1976CO 2.27 acres 2006 94533
15 105392 105400 4 421600 2.42 acres 2038 103200
16 112035 112000 1 112000 2.57 acres 2069 107600
Sum f = 1180600
Spacing, s= 1.0 ft
_ Vol = Sum ' s* (1/3) = 393533 cu ft 393533
9.03 Acre ft
-107600
Volume to 15' elevation 285900 cu ft 285900

Total Tribut ary area to retention pond 21.06 acres
Im ervious/parkin areas 93% 19.6 acres 0.55 18.6 acres
0% 0.0 acres 0.35 0.0 acres
Landscaped 7% 1.5 acres 0.2 0.3 acres
weighted avg c = 0.90 18.9 acres
21.06 acres 21.06 acres
Composite "c" (Rational Method) c = 0.90 ` c = 1.00
Modified tributary area 18.9 acres 21.1 acres
823343 SF 917374 SF
Total rain on area to fill Volume to 15' elevation 0.35 ft 0.31 ft
4.2" 3.7 "
Approx volume above permanent pond for 1.0 "of rain 68600 cu ft 76600
13 - . 14 15 16
88200 cu ft 94533 cu ft 103200 cu ft 107600 cu ft -1:,j600 cu ft -11600 cu ft
-0.207
Approx elevation for 1" rain ;01 12.8 -0.123
12.9
STORMWBH.XLS Prepared by: Bruce Marek, P.E.
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DRAW DOWN PIPE
PFIZER WET RETENTION BASIN DRAW DOWN TUBE SIZING
Volumes from Spreadsheet titled Area -Volume Calcs
Permanent Pool Elevation: 12.0

Volume of 1 inch Storm above permanent pool = 68600 cu ft elevation = 12.8
Q = Volume/seconds
2 day reten tion = 2*24*60*60 = 172800 seconds 68600 / 172800 = 0.40 cfs
5 day retention = 5*24*60*60 = 432000 seconds 68600 / 432000 = 0.16 cfs

Volume above permanent pool to fl ood storm overflow = 285900 , cu ft elevation = 15.0
Q = Volume/seconds
2 day retention = 2*24*60*60 = 172800 seconds 285900 / 172800 = 1.65 cfs
5 day reten tion = 5*24*60*60 = 432000 seconds 285900 / 432000 = 0.66 cfs

Formulas: Q = Vol/time : time = Vol/Q
Q = Cd*Apipe*((2*32.2*H)^.5) Flow rate t hru draw down pipe (culvert)
Cd = Coefficient of discharge = 0.6 for sharp edge pipe
H = head use avg head above permanent pool + .5*I.D. (Dist center of pipe to bottom of pipe)
Note: formula ignores pipe friction loss because of short length

Storm Avg head Pipe I.D. H Cd Q Volume T seconds Time Days
1 inch 0.40 ft 4.410 " 0.58 ft 0.6 0.39 cfs 68600 cf 175797 2.03
Flood 1.50 ft 4.410 " 1.68 ft 0.6 0.66 cfs 285900 cf 431396 4.99

1 inch 0.40 ft 4.450 " 0.59 ft 0.6 0.40 cfs 68600 cf 172405 2.00
Flood
Min I.D. 1.50 ft
Max I.D. 4.450 " 1.69 ft 0.6 0.68 cfs
OPTIMAL DRAW DOW 285900 cf
N TUBE SIZE 423466 4.90
4.410 "
;. •.wx:. •.
xx,;y •
i,xi•S'tiiii??•::,:.:..xti
Standard 4.450" Will retain 1" storm for min 2 days; will pass flood stone
::w.x:w::: ry;.;.;.;.r; iiiiii:i{i vi:• :•`.2Q?L•}:i::iviiiiivit;:ii"'•:
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Pipe & Tube Sizes: in less than 5 days.
Storm Avg head Pipe I.D. H Cd Q Volume T seconds Time Days
4"sch40
1 inch 0.40 ft 4.026 " 0.57 ft 0.6 0.32 cfs 68600 cf 213883 2.48
Flood 1.50 ft 4.026 " 1.67 ft 0.6 0.55 cfs 285900 cf 520091 6.02
5"sch40
1 inch 0.40 ft 5.047 " 0.61 ft 0.6 0.52 cfs 68600 cf 131271 1.52
Flood 1.50 ft 5.047 " 1.71 ft 0.6 0.87 cfs 285900 cf 326807 3.78
5"sch120
1 inch 0.40 ft 4.563 " 0.59 ft 0.6 0.42 cfs 68600 cf 163316 1.89
Flood 1.50 ft 4.563" 1.69 ft 0.6 0.71 cfs 285900 cf 402191 4.65
5"o.d. x.25" wall
1 inch 0.40 ft 4.500 " 0.59 ft 0.6 0.41 cfs 68600 cf 168296 1.95
Flood

AW DO 1.50 ft 4:500 " 1.69 ft
S{;4 iYii

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WN TUBE SELECTION 0.6 0.69 cfs 285900 cf 413853 4.79
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Ignoring wall thicknesses less than schedule 4
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Best Practical Choice: 4"sch40 (has 2 day retention of 1" storm) 'yr.
2nd Choice: 5"o.d. x.25" wall (closest to achieving both conditions) SEAS, r"
"
15684
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STORMWBH.XLS Prepared by: Bruce Marek, P.E. 3/12/96
INFILTRATION
PFIZER TRACT STORMWATER CALCULATIONS
For: Bald Head Island Planning Department
Per DEM Stormwater Management Rules Dated September 1, 1995
Pfizer Tract Southport, NC Brunswick County Deed Book
Deed Book
260
296
Page: 374
Page: 1009
Majority of Site
Portion of B
Deed Book 260 Page: 380 Portion of B

SWALE INFILT RATION RATE ASSUMPTION

Previous Soil Tests for Bald Head Planning indicate an infiltration rate of 20"7hr on Bald Head Island.
Formal soil samples have not yet been taken at the above referenced Pfizer Site, located on
the Mainland in/near Southport, NC. I have been told that infiltration rate at the site may be in the
10" to 12" /hr range, but this is not a confirmed opinion. For calculation purposes for Infiltration Swales
for the Pfizer Site, I am preliminarily assuming a (conservative) infiltration rate of 57hr.

Swales have been designed for a volume of 1 1/2" rainfall based on a tributary area modified with
a weighted average "Rational Method" type modifier.
Calculations are provided on spreadsheet STORMWATER.XLS : SWALES Drainage Area 12.
The chosen sw , le, typical of those proposed throughout the project in Drainage Areas 3 -12,
was checked fc- infiltration over a 24 hour period with a 24 hr 25 year 8" storm (.33"/hr).
It appears that an infiltration rate greater than approximately 47hr will allow the as designed swale
to contain the 8" storm. With an infiltration rate of 5"7hr, after 24 hours a min calulated length swale will only
be 52% filled. Infiltration surface area is taken as fulltibottom width plus 50% of side surface area.

If infiltration rate is found to be close to the 4'7hr rate or less, swale calcs will be provided to confirm .
each chosen swale adequacy.

Depth to water table has not been estimated. Swale bottom elevations or swale geometry will
be adjusted if the 2' separation to water table cannot be achieved.

BRUCE MAREK, P.E.
1502 FISH HAWK CT.
WILMINGTON, NC 28403
Ph: 910-799-9245
Fax: -910-392-2890

CARO,
%
ftJ? q A
i6 4l o

STORMWBH:XLS Prepared by: Bruce Marek, P.E. 1/25/96
96
SWALES Drainge Area 12
SWALE CALCULATIONS: PERIMETER SWALES AROUND PFIZER PARCEL D: Administration & Warehouse /15/95
1
SWALE DESIGN: NC DEM Stormwater Management Rules Sept 1995: Section 1008(d).
Bottom of swale to be minimum 2 it above seasonal high water table.
Inf Itratlons terns to be a minimum of 30' from surface waters, and 100' from water su wells.
infiltrationsystem to be desi ned to completely draw down design stora a volume within 5 days. 120 hrs
All side slopes to be stabilized with ve etative cover an d no steeper than 3
1, :1 horizontal to ve rtical
Allowable Tributary area to swale@min length
120 SF/LF
NC DEM Min Storm Re qt for Swale Design 1.60
001,
8 25 ear Com site Coefficient Rational Method 0.65
Flood Storm Confirm infiltration or rovide ass .
24 hour 0.33 in/hr Tributary Area to Swale(moalned) 78 SF/LF
Design Storm 0.33 In/hr
Triangular Swale: 028 ft/hr
0.
Trapezoidal Swale: X
Rain per LF of Swale per Hour
2.17 cu it
Different Upper Sio Zone Swale: Swale Desf n Volume when Full 9.75 cu it
Infiltration Swale: 0 ft
2 Hours to fill swale if no infiltration 4.5 hours
Bottom width: .
Side slope 1st side (horiz to vert): Si-a- 3:1
ck Case #1 for Flood Storm of
.
0
Side slope 2nd side (horiz to vert): S1 b 3 :1
f ltration Rate (presumptive) 6.00
0

Depth of First Section Swalem
1.50
t
00 it
11
om width
botth
2.0 ft
Side slo e U r Section 1st side: 82a .
3 :1 F
iltrat
ion
50
7 SF/LF
6
Side slo U r Section 2nd side: S2b 3 :1 te Surface
ration rate when full: .
2.81 CF/hr
Depth above first Secn . 0.00 ft
d for Storm
lcs re
f
th
s 2.17 CF/hr
0.64 CF/hr
Width at top: 11.0 It
50 ft
1 g
er ca
ur
neg,
If result i
Infiltration r d to balance in-out full Swale 3.86 in/hr
Total De th of Swale .
H d Radius r = x-section areaNvetted rimeter 0.85 ft
Swale Check Case #2 for Flood Storm
Surface area of sides 9.5 SF/LF Design Infiltration Rate 5.00 in/hr
17 CF/hr
2
Design °h of side infiltration 60%
7 SF/LF
4 Goal Seek Target:
Goal Seek Result: Infiltration Rate .
2.17 CF/hr
Infiltration area side surface .
0 SF/LF
2 Approx Volume of Swale at balance depth 5.12 cu ft 52%
Surface a,ou of bottom .
7 SF/LF
6 Approx Depth at which rain in = infiltrate out 1.01 It
Infiltration Surface Area .
78 CF/LF Total Design Depth 1.50 it
Swale Desi n Volume t If depth is » total design de th:Revise depth or check case#4
For Infiltration Time of Full Swale (no additional rain) = 24 hours 120 hours
Swale would need to infiltrate 0.41 CF/hr 0.08 CF/hr Swale Check Case #3 for Flood Storm
17
it
2
06 It/hr
0 0.01 ft/hr Goal Seek Tar et:Vol 1 hr rain at to of swale cu
.
.
0.72 in/hr 0.14 in/hr Goal Seek Result: Volume 2.17 cu ft
Depth from top of swale for 1 hr rain 0.21 ft
Design Infiltration rate: 6.00 In/hr 0.62 in/hr Volume of swale @ 1 hr rain down 7.58 cu it 78%
Note: Min Allowable= .52"7hr 0.42 ft/hr 0.04 ft/hr Goal Seek Result 7.58 cu It
1
29 It
Full Swale infiltrates at 2.8 CF/hr 0.3 CF/hr Depth of swale @ 1 hr down .
5 CF/hr
2
Swale infiltrates Des; ;n Volume in a roximatel : 3.5 hours 33.4 hours Approx Infiltration rate
If swale depth 1 "down >Case#2 in=out, Swale .
ok for Flood Storm

SWALE`CALCS: Ivan Rainfall, Length, c
8 CF/LF
9
Swale Check Case #4 Hour Levels for Flood Storm
Swale Design Volume .
x 1200 LF Calculate enough hours to show Swale does not overfow
Preliminary Linear ft of Swale 11700 cu it Rain in 1st hr: Goal Seek Target 2.17 cu R
Swale Capacity 6 Inch
1 Goal Seek Result:Vol 2.17 cu ft
Desi in Rainfall
c Runoff Coefficient: Rational Method .
0.65 averse Depth 0.58 it
6 CF/hr
1
Max Tributary Area for Design Volume 144000 SF .
Infiltration
6 cu It
0 6%
Max Tributary Area _ 3.3 acres .
a x volume after 1 hr
Rain in 2nd hr: Goal Seek Tar et .74 u
A rox tributary area a; each LF of Swale 120 SF it
74 cu
2 28%
Goal Seek Result:Voi .
SWALE CALCS: given Rainfall, Area Acres and c Depth 0.68 It
7 CF/hr
1
Design Rainfall 1.6 Inch Infiltration .
0 cu it
1 10%
13 ft
0 a x volume after 2 hr .
Area tributary to swale .
1.87 acres Rain in 3rd hr: Goal Seek Target 3.18 cu ft
Area tributary to swale 81544 SF Goal Seek Result:Vol 3.18 cu ft 33%
c (Runoff Coefficient: Rational method) 0.95 Depth 0.75 ft
1
8 CF/hr
Swale Vo! me Required 9683 cu ft 993 LF .
infiltration
a x volume after 3rd hr 1.4 cu ft 14%
Swale Length Required 26 acres
1 Rain in 4th hr: Goal Seek Target 3.63 cu ft
Area tributary to swale .
54363 SF Goal Seek Result:Vol 3.53 cu ft 36°x6
area tributary to swale th 0.80 ft
De
c (Runoff Coefficient: Rational method) 0.2 p
9 CF/hr
1
Swale Volume Required 1359 cu ft 139 LF .
Infiltration
a x volume after 4 hr 1.6 cu ft 17%
Swale Length Required 11
33 LF HOUR ITERATIONS FOR HORS 5 TO 23 CALCULATED BUT NOT S HOWN
A rox Swale Length re d for Area Considered 135907 SF . a x volume after 23rd hr 2.9 cu ft 30%
3.1 acres
Min Length of swales to be constructed for area: 1130 LF Rain in swale in 24th hr: Goal Target 6.08 cu ft
08 cu ft
r
5
52%
Actual Tributary area to each LF of Swale 120 SF/LF .
*tr/ ..
Goal Seek Res YaA
01 cu ft
"# 1
Composite c 0.65 average .
Depth
16 cu ft
2
'
•
Modified area to use in swale capacity calcs 78 SF/LF .
?•n+
pw° a
Infiltratio
p!ent for design food storm.
a-C*
t
i
l 62%
4
es
44
s
If arc
A
ry a ?? n
Prepared by: Bruce Marek, P.E.,r
STORMWBH.XLS C« f a '
9G
DRAINAGE AREA CALCS

Trapezoidal Swales
3:1 SIDE SLOPES (Horizontal: Vertical)
bottom depth volume infiltration w/
------------ top width
---- Hydraulic
-
width -
--- ----------- - -
50%side area Radius r
Ft Ft CF/LF SF/LF Ft Ft
2.0
2.0 1.00
1.25 5.0
7.2 5.2
6.0 8.0
9.5 0.60
0.73
2.0 1.50 9.8 6.7..._..._. 11.0 _.0.85.....
--
2.0 -
--
1.75 --
12.7 7.5 12.5 0.97

2.0 2.50 23.8 9.3 17.0 1.33
2.0 3.00 33.0 11.5 20 0 1 57
3.0 1.00 6.0 6.2 _9._0_____ _'___0_.64
3 0 1.2 5 8.4 7.0 10.5 0.77
3.0 1.50 11.3 7.7 12.0 0.90
3.0 1.60 12.5 8.1 12.6 0.95
3.0 1.75 14.4 8.5 13.5 1.03
3.0 2.00 18.0 9.`:' 15.0 _ 1.15
3.0 2.50 26.3 10.9 18.0 1.40
3.0 3.00 36.0 12.5 21.0 1.64

4.0
1.00 -- --------
4.0 _
2.00 20
.
0 10.3
--- 16.0 _ 1.20
-2.50--
.50 - _
_
_
--- 28.$--
--
11.9
14.50_
4.0 3.00 39.0 13.5 22.0 1.70
4.0 4.00 64.0 - 16.6 28.0

Chart Prepared by: Bruce Mare k, P.E. 1/23/96
VEGE*IAIIVI COVER
•t.: • aogr?errar.a?rr
gAN CAR p
t -?
SF AI_
• Pe 156811 w
1'7L
ul
SIDE. SLOPES
\?x "V_ N.
I_BEITTOM --- --I
WIDTI-I
TYPICAL INFILTRATION SWALE C(?11SS SF-C FICII?I
NTS
FOR VOLUME/LF ANF INFILTRATION AREA SE/LF SEE TABLES
STURMWATER CONTROL MEASURES USED FOR SEDIMENTATION AND EROSIUN CONTROL
DURING CONSTRUCTION PHASE MUST BE CLEANED OUT & RETURNED TO DESIGNED CTATF:.
STORMWBH.XLS Prepared by: Bruce Marek, P.E. 1/24/96 12:15 AM
" State of North Carolina
Department of Environment,
'f44
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor E H N F1
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
April 24, 1996
Mr. M. Kent Mitchell
Bald Head Island, Inc.
Post Office Box 3069
Bald Head Island, North Carolina 28461
Subject: Permit No. SW8 951012
Pfizer Marina & Parking Tract
High Density Commercial/Residential Stormwater Project
Brunswick County
Dear Mr. Mitchell:
The Wilmington Regional Office received the Stormwater Application for the Pfizer Marina & Parking Tract on October
17, 1995, with final information on April 16, 1996. 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 211.1000. We are
forwarding Permit No. SW8 951012 dated April 24, 1996, to Bald Head Island, Inc..
This permit shall be effective from the date of issuance until April 24, 2006, 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
ajudicatory 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 Linda Lewis, or me at
[phone].
Sincerely,
t)r
law
Dave Adkins
Regional Water Quality Supervisor
DA/arl: S:\WQS\STORMWAT\PERMIT\951012.APR
cc: Bruce Marek, P.E.
Delaney Aycock, Brunswick County Inspections
Ed Brooks, CAMA
Linda Lewis
Wilmington Regional Office
Central Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer
State Stormwater Management Systems
Permit No. SW8 951012
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
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
Bald Head Island, Inc.
Pfizer Marina & Parking Tract
Brunswick County
FOR THE
construction, operation and maintenance of a Detention Pond in compliance with the provisions of 15A NCAC
2H .1000 (hereafter referred to as the "stonnwater 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
Environmental Management and considered a part of this permit.
This permit shall be effective from the date of issuance until April 24, 2006 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. Only the detention pond proposed is covered by this permit.
2. This stormwater system has been approved for the management of stormwater runoff as described on
page 3 of this permit, the Project Data Sheet. The stormwater pond has been designed to handle the
runoff from 852,821 square feet of impervious area (portion of Parcel A 014.81 acres; Parcel C @4.37
acres; and road @.39 acres; the remaining Parcels B, D-F and roadways will be submitted separately
in the future and runoff will be treated by infiltration.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable
parts of the permit.
2
State Stormwater Management Systems
Permit No. SW8 951012
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
DIVISION OF ENVIRONMENTAL MANAGEMENT
PROJECT DATA
Pfizer Marina & Parking Tract
Application Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
Pond Depth:
Permanent Pool Elevation:
951012
Brunswick County
Mr. M. Kent Mitchell
Bald Head Island, Inc.
Post Office Box 3069
Bald Head Island,. North Carolina 28461
October 17, 1995
Southport Restricted Area
"SC"
4 feet
12.MSL
Total Impervious Surfaces Allowed: 64.5 acres total (Detention pond (&852,821 square feet)
Future 44.62 acres. Remainder Parcel A @7.2 acres; Parcel B
@16.9 acres; Parcel D 01.8 acres; Parcel E @4.2 acres; Parcel F @1 acre; Structures: Information Center
@.14 acres; Gatehouse @.01 acres; Marine Maintenance @.18 acres; Contractor Ferry Landing @.14 acres;
Resident Ferry Landing @.22 acres; Resident Waiting Area @.22 acres. Infrastructure: Remaining Roads
@10.61 acres; Miscellaneous Pavement @2 acres.
Green Area entering Pond: 64,191 square feet
Required Surface Area: 74,920 square feet
Provided Surface Area: 79,809 square feet
Required Storage Volume: 68,585 cubic feet
Provided Storage Volume: 86,105 cubic feet
Temporary Storage Elevation: 13 MSL
Controlling Orifice: 4" pipe
3
State Stormwater Management Systems
Permit No. SW8 951012
4. No property owner/developer shall fill in, alter, or pipe any vegetative practices (such as swales) shown
on the approved plans as part of the stormwater management system without submitting a revision to
the permit and receiving approval from the Division.
5. The tract will be limited to the amount of built-upon area indicated in the supporting calculations and
per approved plans.
6. Deed restrictions must be recorded prior to the sale of any outparcel, future area or lot shown on the
approved plans to ensure that future owners are made aware of the built-upon area limitations. The
following statement must be recorded:
"To ensure continued compliance with the NCDEM Stormwater Management Permit
Regulations, 15A NCAC 2H.1000, outparcel(s) and future areas as shown on the approved plans
are limited to 44.62 acres square feet of built-upon area, inclusive of that portion of the
right-of-way between the front lot line and the edge of the pavement, structures, pavement,
walkways of brick, stone, slate, but not including wood decking or the water surface of
swimming pools."
"All built-upon area from the outparcel or future area must be directed into the permitted
stormwater control system."
"Additional built-upon area will require a permit modification."
7. The permittee is responsible for verifying that the proposed built-upon area does not exceed the
allowable built-upon area.
8. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built-upon area.
e. Further subdivision of the project area.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
In addition, the Director may determine that other revisions to the project should require a modification
to the permit.
9. 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.
4
State Stormwater Management Systems
Permit No. SW8 951012
H. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the
stormwater management system:
a. The stormwater management system shall be constructed in it's entirety, vegetated and
operational for it's intended use prior to the construction of any built-upon surface except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will
be repaired immediately.
2. 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 it's 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
3. Records of maintenance activities must be kept and made available upon request to authorized personnel
of DEM. The records will indicate the date, activity, name of person performing the work and what
actions were taken.
4. 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.
5. 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.
6. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date
of the recording. The recorded copy must be signed by the permittee, dated, stamped with the deed
book number and page, and bear the stamp of the Register of Deeds.
7. 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.
5
State Stormwater Management Systems
Permit No. SW8 951012
III. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or
there is a name change of the Permittee, a formal permit request must be submitted to the Division of
Environmental Management accompanied by an application fee, documentation from the parties
involved, and other supporting materials as may be appropriate. The approval of this request will be
considered on its merits and may or may not be approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Environmental Management, in accordance with North Carolina
General Statute 143-215.6(a) to 143-215.6(c).
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) which have 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 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.
Permit issued this the 24th day of April, 1996.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. on Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit Number SW8 951012
6
State Stormwater Management Systems
Permit No. SW8 951012
Pfizer Marina & Parking Tract
Stormwater Permit No. SW8 951012
Brunswick County
Engineer's Certification
I, , as a duly registered Professional Engineer 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.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
7

Land Use Tabulations - Pfizer Tract
Percent of
Total Impervious Imper vious
Parcel Land Use Acres Units Coverage Coverage (Acres)
Non-Residential
A Resort & Resident Parking 22.0 AC 100% 22.0 AC
B Future Development 56.5 AC 30% 16.9 AC
C Employee & Contractor Parking 4.7 AC 100% 4.7 AC
D Adm./ Offices/Whse. & Receiving 3.0 AC 60% 1.8 AC
E Future Development 14.0 AC 30% 4.2 AC
F Marine Maintenance 1.0 AC 100% 1.0 AC
Structures
1 Information Center 0.14 AC (6,400) SF 100% 0.14 AC
2 Gatehouse 0.01 AC (500) SF 100% 0.01 AC
3 Marine Maintenance 0.18 AC (8,000) SF 100% 0.18 AC
4 Employee & Contractor Ferry Landir 0.14 AC (6,400) SF 100% 0.14 AC
5 Resort & Resident Ferry Landing 0.22 AC (10,000) SF 100% 0.22 AC
6 Resort & Resident Waiting Area 0.22 AC 100% 0.22 AC
Infrastructure
Roadway 11.0 AC 100% 11.0 AC
Pavement 2.0 AC 100% 2.0 AC
Miscellaneous
Wetlands 27.3 AC
Open Space 29.4 AC

Total 171.8 AC 37.5% 64.5 AC
?'? 41 I ? f? yt..i C
n
p EC E
D
OCT 1 7 1995
DENI
rRo1 Sw QS/o(Z

DIVISION OF ENViKUNA1kaN'1'AL NAuvacsruv ru-41
NORTH CAROLINA STORMWATER MANAGEMENT PEPJYM APPLICATION
1. GENERAL INFORMATION
1 Project Name Pf izer Tract
.
2. Location, directions to project ('include County, Address, State Road) Attach map.
' At intersection of SR 1528 and SR 1540
3. Owner's Name Bald Head Island, Limited Phone [phone]
4. Owner's Maflin(YAddress: P. 0. Box 3069
City Bald Head Island State NC Zip 28461
5. Nearest Receiving Stream Cape Fear River Class SC
6.Projectdescription Land based operations for day to day activities to and from
Bald Head Island for residents, resort guests, employees and contractors.
II. PERMIT rqFOR.MATION
1. Pe:='t No.(To be jelled in by Daw) ? 0 ? s l0 2 Fee Enclosed S 3 8 5 .0 0
2. Permit Type X New Renewal Modification (existing Permit No.?)
3. Project Type: Low Density X Detention X Infiltration Other: Redevelop General Dir Cent
4. Other S tate/Federal Permits/Approvals Required (check appropri= bL=s )
CAMA Major X Sedimentation/Erosion Control - X 404 Permit x
III. BUILT UPON AREA (Please see NCAC Zer.1005 rhru .1007 for applicable dauiry limier)
Drainage Drainase Breakdown of Impervious Area
Basin Basin (Please indi-= below dte design impervious area)
-Residential 692,604 SF (15.9AC)
Classification SC Buiidingj- ins 59,800 SF. (1.3AC)
Allowable Impervious Area 51.5 AC Streets 479,160 SF (11.0AC )
Total Project Area 171.8 AC Parldng/SW 1,163., 052 SF (26.7AC )
Proposed Impervious Area `_6 4: 5 AC v Other .474 , 8 0 4 SF (I 0
% Impervious Area 37.% . Totals - 2 1 8 0 9; 6.2 0 SF ( 6 4 5AC )
IV. STORMWA'I' +'R 'rR EATMLNT (Describe how die ranof'wW be treated)
Grassed swales, infiltration, detention basins and retention.

V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required..o..be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded
for the type of project applied for.
By your signature below, you certify that the recorded deed restrictions and protective covenants for this project
shall include all the items required by the permit, that the covenants will be binding on all parties and persons
claiming under them, that-they will run with the land, that the covenant cannot be changed or deleted without
concurrence from the State, and that they will be recorded prior to the sale of any lot.
VI. O IS CERTIFICATION
I, certify that the information included on this permit
(P e p ar rype name clearFy}
applicati n form is correct, that the project will be constructed in conformance with the approved plans, that
the dee restrictions will be recorded with all required permit conditions, and that to the best of my knowledge,
the proposed project complies with the requirements of 15A NCAC 2H.1000.
I authorize the below named person or to submit stormwater plans on my behalf.
October 16, 1995
Ow ei/Au orized Agent Signature aifd Title Date
-YM. AUIHORIZA'
(MUST BE COMPLETED)
Person or firm name
Mailing Address
AL 4,24 Bruce trekPe
214,3 N F_r-G t St r-eC 1502 F4 Hawlc Ct
Phone [phone]
"
City Wilmington State NC Zip 2840'
Please submit form to the Regional Office that serves the area that the project is located, as indicated on
Attachment B.
cc: Applicant/WiRO//Central Files
-199 - Utz

p EC E.0 WI
DD
OCT 1 7 1995
DE
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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
Mr. Bruce Marek, P.E.
1502 Fish Hawk Court
Wilmington, North Carolina
February 16, 1996
28403
Subject: ADDITIONAL INFORMATION
Stormwater Proiect No. SW8 951012
BI-II-Pfizer Tract Marina
Brunswick County
Dear Mr. Marek:
The Wilmington Regional Office received a Stormwater Management Permit Application for BHI-
Pfizer Tract Marina on January 25, 1996. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
I am a little confused by the design assumptions. On one sheet the individual Tract area is
listed and the impervious is shown as 100%, yet in the actual design, a smaller impervious
area is used. For example, on sheet S-1, Tract A is listed as 22 acres @100% impervious.
On sheet SW-1, the drainage area to the pond within Tract A is listed as 15.93 acres @93 %
impervious. What exactly is the pond designed for, 22 @100 % or 15.93 @93 %? Please
clarify. The numbers you use in the pond design must be the same as requested on the
application form.
2. Based on #1 above, if the area is assumed at 100% impervious for pond design, then the
surface area and volume are deficient. If the lesser impervious area is used, then both of
these elements meet the regulations.
3. I am unable to find where you have sized the drawdown orifice. Please remember, the
orifice is sized based on the volume actually provided in the pond, not just what is required
to be stored.
4. The application form and the calculations do not match up exactly, but they are very close.
The application uses an impervious cover total which includes Tracts A and C as 100%
impervious.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer
Mr. Marek
February 14, 1996
Stormwater Project No. SW8 951012
5. A signed Operation and Maintenance plan for both the infiltration areas and the pond.
6. Field investigations conducted on February 2nd and February 16th, have shown that all but
2 areas of the site can be used for infiltration. The infiltration trench location for Drainage
Area 10 is too low to be used, as are the north and west portions of Drainage Area 12. DA-
12 canbe moved further up the hill to get out of the wet areas. DA-10 may need alternative
BMP measures in order receive approval. Since you did not perform a soils investigation,
an infiltration rate of 60" per hour has been established as the maximum for the sandy soils
at the site. The borings were all done to a depth of 60"-66", with no water encountered.
DA-8 and DA-12 are proposed to be too far down for our equipment to reach, so you must
provide information on the soil and SHWT in those locations. The latitude and longitude grid
you provided was extremely helpful in pinpointing the locations of the infiltration areas.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to March 14, 1996, 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 have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
"-
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\951012.FEB
cc: Linda Lewis
Dan Weeks, BHI Planning
Central Files
2
5rATE
a?
State of North Carolina
Department of Environment, Health, and Natural
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT
Governor WATER QUALITY SECTION
October 31, 1995
Mr. Dan Weeks, ASLA
Bald Head Island Planning Dept.
Post Office Box 3069
Southport, North Carolina 28461
Resources
Jonathan B. Howes
Secretary
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 951012
Pfizer Tract and Marina
Brunswick County
Dear Mr. Weeks:
The Wilmington Regional Office received a Stormwater Management Permit Application for the
Pfizer Tract and Marina on October 17, 1995. A preliminary review of that information has determined
that the application is not complete. The following information is needed to continue the stormwater
review:
1. I am unsure exactly what you are asking for with this submittal. Yes, the site will be high
density, therefore, an engineered solution will be required, however, no engineered solution
was presented for approval. This is not the same type of master plan approval as Stage H
was. Stage H was low density overall and only involved engineered solutions for portions
of the project. I cannot issue a permit that says an overall high density project is approved
without an engineered solution to approve. I realize that you want to secure the CAMA
permit, and that in order to get the CAMA permit, a stormwater permit must be in hand,
however, the project does not propose something to approve. I spoke with Bradley Bennett,
our Stormwater contact person in Raleigh, and with Bob Stroud, and both are of the same
opinion. They suggested that a generic pond design be submitted using the proposed
impervious area percentages, along with a signed Operation and Maintenance plan. That
way, there will be something to approve which will be based on the most impervious area
practicable.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer
Mr. Weeks
October 31, 1995
Stormwater Project No. SW8 951012
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to November 30, 1995, or the application
will be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
4x" Z'(-?
Ms. Linda Lewis
Environmental Engineer
DA/arl: S: \WQS\STORMWAT\ADDINFO\951012. OCT
cc: wI ada-,Lew s
Central Files
2
02' 01' 78O 59' 58' 57' 56'
•
October 16, 1995 BALD HEAD ISLAND
0
3
Ms. Linda Lewis
DEHNR - Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405
Dear Linda:
Please find enclosed a North Carolina Stormwater Management Permit application, $385.00 check
for the application fee and subsequent site plans for the Pfizer Tract located in Southport, NC.
This proposed development is 171.8 AC and is intended to provide Bald Head Island a centralized
facility for our operations and day to day activities for our residents, resort guests, employees and
contractors.
With regard to the land use plan and tabulations (see enclosure) each area has a parcel allocation
with intended use, acres, percent of impervious coverage and impervious coverage in acreage.
The proposed impervious acreage is 64.5 AC for this development which equates to an overall
percent of impervious coverage of 37.5% (64.5/171.8) for the entire tract.
Since we do not meet the low density requirements we realize a stormwater management plan
will be needed. At this point we anticipate that this project will begin mid to late 1996 at the
earliest, pending approval (CAMA Major and related agencies). An engineered stormwater plan
will be submitted prior to construction for the development.
5
5
5
5
5
Please call me at 910-457-7339 with any questions or comments
5
Daniel H-. Weeks, ASI
Director of Planning
Enclosures
5
cc: Dave Adkins
Ken Stewart
Ken Kirkman
David Edwards
5
ANOTHER WORLD

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? E C E t V E
Linda Lewis D
DEM Water Quality Section APR 101996
DEHNR
127 Cardinal Drive Extension D E M
Wilmington, North Carolina 28405-3845 PROJ #
Re: Soil and Groundwater Information for DA-8 and DA-12 at Bald Head Island Base Marina
Site
Dear Linda:
On April 4th our staff examined the soil profiles underneath the stormwater infiltration trenches
proposed at DA-8 and DA-12. We utilized a standard 32 inch bucket auger to about eight feet
of depth and then switched over to a 3 1/2 inch sand auger with extension tubes to get down to
15 feet of depth. We encountered the following soil profiles:
DA-8: (Wando/Blanton Series; Holes A&B) excessively well drained coarse sand
A,O - 4" dark grey (10 yr 4/1) fine sand (salt & pepper);
E/BH - 5" to 10" pale brown (10 yr 7/4) incipient soft spodic - slight concretion;
E - 11" to 58" light yellow/brown (10 yr 6/5) fine sand;
C1 - 59" to 82" - light tan/yellow (7.5 yr 6/6) fine sand;
C2 - 83" to 50" light yellow fine sand (10 yr 6/5);
C3 - 151" to 180" white course sand in H2O table
Estimated seasonally high water table is 11.5 feet below average soil surface
DA-12: (Baymeade/Wando Service Holes C) moderately well drained fine sand
A - 1" to 6" - light grey fine sand (10 yr 7/2);
E - 7" to 14" - fine loose grey brown sand (10 yr 7/3);
BT1 - 15" to 42" - yellow brown fine long sand (10 yr 5/6);
BT2 - 43" to 66" - pale yellow brown fine sand (10 yr 7/4);
C1 - 67" to 72" - washed out pale yellow and (10yr 5/3)
Estimate seasoned high water table was found a, 4.5" elow the soil surface
i
¢.
In conclusion, in order to maintain the two foot vertical separation between the bottom of the
infiltration trenches and the SHWT, the grades cannot be cut any lower than 9.5 feet at DA-8 and
2.5 feet below the natural ground surface at DA-12.
Should you have any questions, please feel free to contact me at your convenience.
Sincerely,
Rob Moul, MEM
Environmental Consultant
Enclesure: oral:
cc: Dan Weeks, Bald Head Island
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SAMPLE HOLE LOCATIONS
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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
April 4, 1996
Mr. Bruce Marek, P.E.
1502 Fish Hawk Court
Wilmington, North Carolina 28403
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 951012
Pfizer Tract Marina
Brunswick County
Dear Mr. Marek:
The Wilmington Regional Office received a Stormwater Management Permit Application for Pfizer
Tract Marina on March 13, 1996. A preliminary review of that information has determined that the
application is not complete. The following information is needed to continue the stormwater review:
1. The Operation and Maintenance has not been signed by Kent Nitchell. I only have a copy
with Dan Weeks' OK on it.
2. I am still confused by the 93 % impervious area to the pond. If the portion of Parcel A that
drains to the pond has an area of 694,011 ft2, then 93 % of that is 645,430 ftz, or 14.817
acres. You show only 14.3 acres. Additionally, Parcel C plus the road area total is 223,001
ft2. Again, 93 % of that is 207,391 ft2, or 4.76 acres, but you show only 4.6 acres. Please
clarify.
3. I have confirmed that the permit can be issued approving the pond and indicating that the
future infiltration systems must be submitted on a case by case basis for approval.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer
BRUCE MAREK, P.E.
1502 FISH HAWK CT.
WILMINGTON, NC 28403
Ph: 910-799-9245
Fax: [phone]
March 13, 1996
FE ER TRACT STORMWATER
SUBMITTAL REVISIONS DEANR #SW8-951012
Ms. Linda Lewis
State of North Carolina
DEHNR, Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405
Dear Ms. Lewis,
MAR ? ? 1996
...sw S,?j sl q ? z.
Accompanying this letter are the revisions to the above referenced stormwater project per
your 2/16/96 letter. Included are Drawings: Rev 1: 3/12/1996 # S1, SW1, & SW2. The
developed area numbers are now co-ordinated between sheets S 1 & SW 1 showing a
developed acreage of 44.6 acres, the same acreage covered by stormwater calcs for the wet
pond, swales, and sand filter(s). The drawdown oriface calcs are included on sheet SW2 and
on seperate spreadsheet.
The Operations & Maintenance Plan (2 pages 8.5" x 11 "), with approval from Dan Weeks of
Bald Head Island Planning is also included.
Evaluation/verification of water table/soil conditions at swales is being scheduled by Bald
Head Island Planning. They hope to co-ordinate additional work at the site with requirements
of other review agencies, but should have this completed, weather permitting within two
months. I would like to acknowledge here your departments preliminary findings of mostly
sandy soils with a high infiltration rate. Per our conversations 15 "/hour is a conservative
available infiltration rate.
Please let me know if there is any additional information you need.
Sincerely,
?? A e, t?e 4 1?0?L
Bruce Marek, P.E.
Pretreatment BMPs such as grassed swales, infiltration practices, forebays, wet ponds, etc. should be used
to reduce loadings of sediment, oil, grease and othe, pollutants to protect die filtering capacity of the wet-
land.
Wetland systems must be carefully designed to function properly. They require a large contributing area. to
supply an adequate source of water to prevent the wetland from drying out.wThey can require large land
areas to construct so are most Vpropriate for use in new developments. tlet cleani
The construction cost is periodic -
ally higher than wet ponds. Maintenance includes sediment removal, inlet/oung and the peerriodic
harvesting of wetland vegetation to remove nutrients.
Other Control Devices
• Sand Filters
Sand filters are water quality control devices used to treat the first flush of runoff primarily from large build-
ings, access roads and parking lots. They are not designed to control the quantity of runoff and flooding.
They are particularly adapted for use in treating runoff from small sites which lack the necessary space for
more land intensive BMPs. These devices use settling and filtration processes to treat stormwater runoff.
They require the use of some type of pretreatment to reduce the loading of sediment and debris to the
filter. They then filter the runoff through a bed of sand before discharging it into another BMP (e.g, grassed
swalei or a stream. There are above ground and underground versions. Above ground versions are self
contained sand beds
drained by a system
of underlying pipes.
T'
1 ne ia:-ge, above
ground filters can
treat runoff from ar-
eas as large as 5 acres
in size. Small filters
are usually placed
underground in
trenches or
two-chambered pre-
cast concrete boxes.
Their use is limited to
small drainage areas
such as moderate to
large parking lots.
The pollutant re- -- - z>eOlment chamber
moval capability of
sand filters is rated Figure 14. Underground Sand Filler (Source: Arnold, et al. 1993)
moderate to high. They are especially effective in removing sediment and sediment-bound metals. En-
hanced sand filter systems utilize an extra layer of peat or a grass cover crop and are projected to have even
better rear-oval rates. Sand filters aopear to have exceL-a', i,ingevity wht i:proper maintenance. However,
they have comparatively high construction costs. They are more expensive than infiltration systems but
have lower maintenance costs. Maintenance includes the cleaning of pretreatment devices of sediment and
debris and the raking and occasional removal of the upper sand layer which becomes clogged over time.
Sand filters have been used in a few areas around the country including Florida, Maryland, Delaware,
Washington, D.C., and Austin, Texas.

Removable filter
chamber cover Inlet grates
.JUN-04-97 WED 08:30 AM
FAX TRANSMITTAL
A ENGINEERING - PLANNING
S
Consulting Engineer:, FLLC
P.U. Box 538
North Myrtle Beach, 80 29597
803-280-5870
803-248-1400 Fax
SEND TO
Company nano From
NCDEHNR-WAterQualit Amie
Mantron Date
Linda Lewis June 03 1997
Faxn er Phonenumbw
910-350-2004 803-280-5870
? agent ? RePtyASAP Please colhMent Xa Please review ? For yoar latWmaffon
Total pages, indudbo cover. 2
COMMENTS
Linda:
............................... ....... ..... ."............................. ............... ............. ........................
. _ ....... ... Enclosed please find a location map for the protect we discussed this morning regardir
the classification of the Ca a Fear River ad'acent too . ' ....
........ .... .................F._ 1.----....._.ursite. The site is located adjacent to the
....... . ion
construct brge .....--......... .....................
...... a... landing for B$.. Head Island.
.......... ." ........................--------- ...."..".....----,.".._
Thank ou for all of our assists
......... ...................... "........... ............. ....... . ...... .......... , ,........... "_...
.......... I .................... .. ...... ......... 0?? .......... -
P.01
IUN-04-97 WED 08.31 AM ? P.02
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?,y. STATE o.
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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. Division of Water Quality Jonathan B. Howes
Governor Water Quality Section Secretary
June 5, 1997
Ms. Amie Drucker, P.E.
AB Consulting Engineers
PO Box 538
North Myrtle Beach, SC 29597
Subject: Information
Southport Project
Stormwater Project No. SW8 951012
Brunswick County
Dear Ms. Drucker:
The classification of the Cape Fear River around the Town of Southport is SC. The project area you
have shown is within the Southport Restricted Area. The project appears to be part of a project that this
Office approved in 1995, called the Pfizer Marina and Parking Tract. Some parcels within the tract were
required to be submitted later for review. This appears to be Tract B. I have enclosed a copy of the permit
for SW8 951012 for your information.
If you have any questions, please do not hesitate to call me at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\LETTERS\951012.JUN
cc: Linda Lewis
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Project Narrative
for
DEEP POINT MARINA PROJECT
50UTHPORT, NC
Prepared for
BALD HEAD ISLAND, LIMITED
September 16, 1997
Revised 1013197
Revised 19/11/97
Revised 2/9/98
Revised 3/25/9B
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GENERAL
BALD HEAD ISLAND, LIMITED (BHI) IS PROPOSING TO RELOCATE THEIR EXISTING BARGE
FERRY LANDING FROM THE CURRENT 51TE TO A SITE LOCATED APPROXIMATELY 1500
FEET UPSTREAM ON THE CAPE FEAR RIVER. THE PROPOSED IMPROVEMENTS WILL
ULTIMATELY CONSOLIDATE BHI'S OTHER FERRY SERVICES. THE PROPOSED RELOCATION
OF THE BARGE FERRY LANDING WILL BE CONSIDERED THE FIRST PHASE OF THE OVERALL
PROJECT.
51TE IMPROVEMENTS
ACCORDING TO THE CURRENT LAND USE PLAN, THE OVERALL PROJECT WILL BE
APPROXIMATELY 76 ACRES. THE FIRST PHASE WILL CONSIST OF THE BARGE FERRY
LANDING, MARINA BASIN AND ASSOCIATED PARKING. THI5 PHASE WILL D15TUR13 21.7
ACRES OF LAND. THE EXISTING SITE 15 WOODED & HA5 5LOPE5 THAT RANGE FROM
0%TO 5%.
SEDIMENTATION & EROSION CONTROL
THE 51TE WILL D15TUR13 APPROXIMATELY 21.7 ACRES. THIS INCLUDES AN ON51TE SPOIL
STORAGE AREA AND AREAS TO BE CLEARED FOR FUTURE IMPROVEMENTS. THE SITE HAS
BE DIVIDED INTO SEVERAL DRAINAGE BASINS. EACH DRAINAGE 5A51N HAS A TEMPORARY
SEDIMENT TRAP (T5T) LOCATED WITHIN THE BOUNDARY. SOME OF THE T5T5 WILL BE
CONVERTED TO PERMANENT STORMWATER IMPOUNDMENTS AFTER FINAL GRADING IS
COMPLETE AND THE 51TE HAS 5TABLIZED. THE SITE HAS BEEN ISSUED A SEDIMENTATION
& EROSION CONTROL PERMIT (970922BR). THE PURPOSE OF THI5 SUBMITTAL 15 TO
UPDATE THE PERMIT PLAN TO REFLECT REVISIONS TO THE OVERALL 51TE AND
5TOKMWATER CONCERNS. REVISIONS TO THE 5TORMWATER MANAGEMENT PERMIT ARE
BEING SUBMITTED CONCURRENTLY WITH THE REVISIONS TO THE SEDIMENTATION &
ER05ION CONTROL PLANS.
i
5TORMWATER MANAGEMENT
5TORMWATER WILL DE COLLECTED IN ROAD5IDE DITCHE5 OR CATCH 5A51N5 AND
D15CHARGED TO EITHER WET DETENTION POND-10R POND-2. TH15 51TE HA5 A
PERMITTED 5TORMWATER MANAGEMENT PLAN (5W& 951012). A COPY OF THE
5TORMWATEK PERMIT WA5 5UBMITTED WITH THE ORIGINAL PACKAGE. THE PURF05E OF
TH15 PLAN 15 TO MODIFY THE EX15TING PERMIT TO INCLUDE THE PHA5E ONE
IMPKOVEMENT5. THE EXI5TING PERMIT HAS AN APPROVED WET DETENTION POND THAT 15
NOT INCLUDED IN THE PHA5E ONE IMPROVEMENT5. TH15 POND WILL DE CON5TRUCTED IN
THE FUTURE. CALCULATION5 FOR THE TWO PROPO5ED POND5 ARE CONTAINED IN
APPENDIX A. THE OVERALL PROJECT AREA HA5 BEEN REDUCED TO APPROXIMATELY 76
ACRES. COPIE5 OF THE ORIGINAL PLAN5 WERE AL50 50MITTED EARLIER THAT REFLECT
THE CURRENT PROJECT BOUNDARY AND SIZE. A 5011.5 INVE5TIGATION FOR THE
PROJECT5 INFILTRATION 13A51N (POND-1) 15 CONTAINED IN APPENDIX A.

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Line 1 Q = 7.96 Size = 24 x 24 (Cir) Nv = 0.012 Len = 80.0 JLC =1.00 I
1 / Outfall
Invert
Dnstrm 7.50
Upstrm 8.00
Depth HGL EGL
11 8.92
11 8.90 L/ 9.42
Time of conc. (min)
Inlet Time (min)
Intensity @ 10 yr (in/hr)
Cumulative C x A
Q = CA x I (cfs)
Q Catchment (cfs)
Q Carryover (cfs)
Q Captured (cfs)
Q Bypassed to offsite
Line 2 Q =1.95
Area Vel T-Wid Cover
1.38 5.77 1.99 N/A
1.38 5.77 1.99 4.70
= 6.19 Critical depth (in)
= 5.00 Natural ground elev. (ft)
= 6.98 Upstream surcharge (ft)
= 1.14 Additional Q (cfs)
= 7.96 Full-flow capacity (cfs)
-----------
= 0.65 ------------------------------
Inlet Type
= 0.00 Gutter slope (ft/ft)
= 0.05 Cross slope (ft/ft)
= 0.60 Width of Flow (ft)
Size =15 x 15 (Cir) Nv = 0.012 Len = 214.0
= 0.625
6?}a5a
= 12
= 14.70
= 0.00
= 0.00
= 19.37
= Grate
= 0.03
= 0.40
= 0.79
JLC =1.00
2 / Downstream line = 1
Invert Depth ' HGL EGL f Area Vel T=Wid Cover
Dnstrm 8.00 15
Upstrm 9.50 7
Drainage area (ac)
Runoff coefficient (C)
Time of conc. (min)
Inlet Time (min)
Intensity @ 10 yr (in/hr)
Cumulative C x A
Q = CA x I (cfs)
9.42 9.46
10.06t/1" 10.27
= 0.30
= 0.90
= 5.00
= 5.00
= 7.23
= 0.27
= 1.95
1.23 1.59 0.00 5.45
0.53 3.67 1.24 1.25
Slope of invert (%)
Slope energy grade line (%)
Critical depth (in)
Natural ground elev. (ft)
Upstream surcharge (ft)
Additional Q (cfs)
Full-flow capacity (cfs)
Q Catchment (cfs) = 1.95 Inlet Type
Q Carryover (cfs) = 0.00 Gutter slope (ft/ft)
Q Captured (cfs) = 1.95 Cross slope (ft/ft)
Q'Bypassed°to-l (cfs)Y ` ~- 0:00 rW dth of Flow (ft)
= 0.701
= 0.378
= 7
= 12.00
= 0.00
= 0.00
= 5.86
= Grate
= 0.00
= 0.40
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Line 3 Q = 5.64 Size = 24 x 24 (Cir) Nv = 0.012 Len = 70.0 JLC =1.00
3 /Downstream line = 1
Invert Depth HGL EGL Area Vel T-Wid
Dnstrm 8.00 17 9.42 9.51 2.39 2.36 1.69
Upstrm 8.50 10 9.37 9.66 1.31 4.30 1.98
Drainage area (ac) = 3.90
Runoff coefficient (C) = 0.20
Time of conc. (min) = 5.00
Inlet Time (min) = 5.00
Intensity @ 10 yr (in/hr) = 7.23
Cumulative C x A = 0.78
Q = CA x I (cfs) = 5.64
----------------------------------
Q Catchment (cfs) ----------
= 5.64
Q Carryover (cfs) = 0.00
Q Captured (cfs) = 5.64
Q Bypassed to 1 (cfs) = 0.00
Slope of invert (%)
Slope energy grade line (%)
Critical depth (in)
Natural ground elev. (ft)
Upstream surcharge (ft)
Additional Q (cfs)
Full-flow capacity (cfs)
Inlet Type
Gutter slope (ft/ft)
Cross slope (ft/ft)
Width of Flow (ft)
Cover
4.70
1.50
= 0.714
= 0.213
= 10
= 12.00
= 0.00
= 0.00
= 20.71
= KnCap
= 0.02
= 0.60
= 1.45

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Line 1 Q = 30.50 Size = 36 x 36 (Cir) Nv = 0.013 Len = 64.0 JLC = 1.00
A / Outfall
Invert Depth HGL EGL Area Vel T-Wid Cover
Dnstrm 2.00 36 6.00 6.29 7.07 4.32 0.00 N/A
Upstrm 3.00 36 6.13 6.42 7.07 4.31 0.00 0.70
Drainage area (ac) = 0.00 Slope of invert (%) = 1.563
Runoff coefficient (C) = 0.00 Slope energy grade line (%) = 0.209
Time of conc. (min) = 2.39 Critical depth (in) = 21
Inlet Time (min) = 0.00 Natural ground elev. (ft) = 6.70
Intensity @ 5 yr (in/hr) = 0.00 Upstream surcharge (ft) = 0.13
Cumulative C x A = 0.00 Additional Q (cfs) = 4.80
Q = CA x I (cfs) = 0.00 Full-flow capacity (cfs) = 83.37
-------------------------------------
Q Catchinent (cfs) = -------
0.00 --------------------------------------
Inlet Type --------------
= ME
Q Carryover (cfs) = 0.00 Gutter slope (ft/ft) = 0.00
Q Captured (cfs) = 0.00 Cross slope (ft/ft) = 0.00
Q Bypassed to offsite =
------------------------------------- 0.00
---------------------- Width of Flow (ft)
--------------------------------------- = 0.00
--------------
Line 2 Q = 25.70 Size = 30 x 30 (Cir) Nv = 0.013 Len = 222.0 JLC =1.00
A / Downstream line = 1
Invert Depth HGL EGL Area Vel T-Wid Cover
Dnstrm 3.00 30 6.42 6.85 4.91 5.24 0.00 1.20
Upstrm 4.00 30 7.30 7.72 4.91 5.24 0.00 3.50
Drainage area (ac) = 0.00 Slope of invert (%) = 0.450
Runoff coefficient (C) = 0.00 Slope energy grade line (%) = 0.393
Time of conc. (min) = 1.16 Critical depth (in) = 20
Inlet Time (min) = 0.00 Natural ground elev. (ft) = 10.00
Intensity @ 5 yr (in/hr) = 0.00 Upstream surcharge (ft) = 0.80
Cumulative C x A = 0.00 Additional Q (cfs) = 12.80
Q = CA x I (cfs) = 0.00 Full-flow capacity (cfs) = 27.53
-------------------------------------
Q Catclunent (cfs) = -------
0.00 --------------------------------------
Inlet Type --------------
= MH
Q Carryover (cfs) = 0.00 Gutter slope (ft/ft) = 0.00
Q Captured (cfs) = 0.00 Cross slope (ft/ft) = 0.00
Q Bypassed to 1 (cfs) =
------------------------------------- 0.00
---------------------- Width of Flow (ft)
---------------------------------------- = 0.00
-------------
Line 3 Q = 12.90 Size = 18 x 18 (Cir) Nv = 0.013 Len = 128.0 JLC = 1.00
A / Downstream line = 2
Invert Depth HGL EGL Area Vel T-Wid Cover
Dnstrm 4.00 18 7.72 8.55 1.77 7.30 0.00 4.50
Upstrm 8.00 18 9.65 10.48 1.77 7.30 0.00 2.70
Drainage area (ac) = 0.00 Slope of invert (%) = 3.125
Runoff coefficient (C) = 0.00 Slope energy grade line (%) = 1.509
Time of conc. (min) = 0.44 Critical depth (in) = 16
Inlet Time (min) = 0.00 Natural ground elev. (ft) = 12.20
Intensity @ 5 yr (in/hr) = 0.00 Upstream surcharge (ft) = 0.15
Cumulative C x A = 0.00 Additional Q (cfs) = 2.30
Q = CA x I (cfs) = 0.00 Full-flow capacity (cfs) = 18.56
-----------------------------------
Q Catchment (cfs) ---------
= 0.00 --------------------------------------
Inlet Type --------------
= MH
Q Carryover (cfs) = 0.00 Gutter slope (ft/ft) = 0.00
Q Captured (cfs) = 0.00 Cross slope (ft/ft) = 0.00
Q Bypassed to 2 (cfs)
----------------------------------- = 0.00
-------------
----------- Width of Flow (ft)
--------------------------------------- = 0.00
--------------
Line 4 Q = 10.60 Size = 18 x 18 (Cir) Nv = 0.013 Len = 80.0 JLC = 1.00
A / Downstream line = 3
Invert Depth HGL EGL Area Vel T-Wid Cover
Dnstrm 8.00 18 10.48 11.04 1.77 6.00 0.00 2.70
Upstrm 10.50 15 11.74 12.45 1.56 6.77 1.13 1.00
Drainage area (ac) = 0.00 Slope of invert (%) = 3.125
Runoff coefficient (C) = 0.00 Slope energy grade line (%) = 1.769
Time of conc. (min) = 0.00 Critical depth (in) = 15
Inlet Time (min) = 0.00 Natural ground elev. (ft) = 13.00
Intensity @ 5 yr (in/hr) = 0.00 Upstream surcharge (ft) = 0.00
Cumulative C x A = 0.00 Additional Q (cfs) = 10.60
Q = CA x I (cfs) = 0.00 Full-flow capacity (cfs) = 18.56
-----------------------------------
Q Catchment (cfs) ---------
= 0.00 --------------------------------------
Inlet Type --------------
= ME
Q Carryover (cfs) = 0.00 Gutter slope (ft/ft) = 0.00
Q Captured (cfs) = 0.00 Cross slope (ft/ft) = 0.00
Q Bypassed to 3 (cfs)
----------------------------------- = 0.00
-------------
----------- Width of Flow (ft)
--------------------------------------- = 0.00
--------------
CAPE FEAR
VP Engineering, Inc.
3963 Market Street Wilmington, NC 28403
[phone] FAX (910) 772-%79
November 11, 1997
Linda Lewis
NCDEHNR- Water Quality Section
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: Deep Point Marina Project
Dear Me. Lewis:
STORMWATER
177,

.A
S?

On behalf of Bald Head lsland, Limited (BHI), please find attached a 5tormwater Management
Plan submittial for the above referenced project. This project was previously permitted ao the
"Pfizer Marina & Parking Tract- 5W8 951012". The purpose of this 5ubmittial i5 to modify the
existing stormwater permit to include the improvements proposed for Phase One. Included in
this submittial are the following items:
• The original application with attachments.
• The application fee of $385.00.
• Two Set of the construction drawings.
• Two copies of the Project Narrative and Design Notes.
• Two copies of the original construction drawings with the revised project boundary
high lighted in red as per your instructions.
If you have any questions or comments, please contact our office.
Sincerely,
Perry . Davis
(enc.)
cc:Andy Sayre - BHl
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
January 22, 1998
Mr. Mark Ashness, P.E.
Cape Fear Engineering
3963 Market Street
Wilmington, NC 28403
. ?X;W' A
1174 0
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 951012 Modification
Bald Head Island Pfizer Tract and Marina
Brunswick County
Dear Mr. Ashness:
The Wilmington Regional Office received a modification to the Stormwater Management Permit Application
for Bald Head Island Pfizer Tract and Marina on November 17, 1997. A preliminary review of that information has
determined that the application is not complete. The following information is needed to continue the stormwater
review:
1. Show 3:1 slopes on the roadside ditch detail.
2. Show spot elevations for the paved area near Grate Inlet #3. I must confirm that runoff does not
bypass around the grate.
3. Add the dimensions of the permanent pools for the detention ponds, as you have done for the
infiltration areas. Please label the pond contours for the permanent pool and storage pool elevations,
and the vegetated shelf.
4. Usually, the orifice and outlet piping are located within a box structure that provides access to the
orifice for maintenance. Your design precludes easy maintenance by making the orifice inaccessible.
Additionally, by having the invert of the orifice below the permanent pool, with the 4" outlet invert
at the permanent pool (negatively sloping the 4" piping through the entire pond berm slope) you
significantly increase the possiblity of clogging and the design does not allow runoff to draw down
to the permanent pool. The most it can draw down to is whatever the invert of the 90° elbow is, which
appears to be above the permanent pool from the detail. In order to alleviate potential nuisance
conditions created by this design, and to meet the drawdown criteria, please revise it to include a
structure for ease of maintenance and to reduce the clogging potential.
5. Locate the ponds and basins in recorded access/drainage easements.
6. Previously, tracts were designated as A-F and the Marina. Do you wish to continue using these
designations? If yes, please revise the drainage area map provided to indicate these tract designations.
Will the currently submitted site be considered as the Marina Tract?
Mr. Ashness
127 North Cardinal Dr., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
January 22, 1998
Stormwater Project No. SW8 951012 Modification
7. Where will the personnel constructing this site park? Will a parking lot be constructed as part of this
project? Please indicate it's location and a pond for control of the runoff. Any surface used as parking
is considered impervious, and must be included.
8. Are we revising the overall 951012 permit, or issuing a modification for the Marina Tract?
9. A soils report is required for the infiltration areas. The original permit was issued for the pond only,
with the future infiltration areas to be submitted separately. No specific infiltration basins were
permitted. Some soils investigation was done at the time the permit was issued, however, the locations
and specific elevations of the infiltration areas were preliminary. The locations shown on this plan are
different than those previously shown. Please have the infiltration areas flagged. Upon receipt of the
soils report, we will schedule a site visit with you to confirm the soils information. Please include the
type of soil, the depth to the Seasonal High Water Table, and the expected infiltration rate.
10. Please size the orifice for the actual volume provided in the pond, not the minimum required.
11. Forebay design is based on 20 % of the VOLUME of the first inch-it has nothing to do with the surface
area. Please revise your calculations. Please don't oversize the forebay. Stay as close to 20 % as
possible.
Please note that this request for additional information is in response to a preliminary review. The requested
information should be received by this Office prior to February 22, 1998, 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 have any questions concerning this matter please feel free to call me at [phone].
Sincerely,

Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\951012.JAN
cc: Linda Lewis
Central Files
127 North Cardinal Dr., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
DETENTION POND ANALYSIS
PROJECT #: SW8 951012-2 Pond 2
PROJECT NAME: Deep Point Marina
REVIEWER
DATE:
Drainage Basin: Southport Restricted Area Class: Sc
12-Mar-98
arl
Chlorides: n/a
Site Area square feet
Drainage Area 387684 square feet
Area in Acres 8.9 acres
IMPERVIOUS AREA
Buildings 2400 square feet
Parking/drives 137650 square feet
Future 142877 square feet
square feet
square feet
TOTAL 282.927, square feet
% IMPERVIOUS
72.98% Pond Depth: 3.5 TSS:
85
SURFACE AREA CALCULATION
SA/DA _ 5.438%
Req. SA 21083.424: square feet
Prov. SA 21633 square feet [From plan Contours]
VOLUME CALCULATION
Bottom 1 MSL
Perm. Pool ; 4.55 MSL
Design Pool 5.5 MSL
Design SA 24393 square feet [From plan Contours]
Req. Volume 22834.875 cubic feet Rv= 0.7068089
Prov. Volume L 2;03 cubic feet SA @
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.4479167 ft
Flow Q2, cfs 0.13317708 Area, in2 5.951127 Dia 2, inches 2.752673
Flow Q5, cfs 0.05327083 Area, in2 2.380451 Dia 5, inches 1.740943
Engineer uses 2 5; Inches Area= 4.9087385 in2
Q, cfs = 0.10985 Drawdown 2,4270'1 days
FILE NAME: S:\WQS\POND\951012-2.WK1
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.
DETENTION POND ANALYSIS
PROJECT #: SW8 951012-1
PROJECT NAME: BHI- Deep Point Marina
REVIEWER: arl
DATE:
Drainage Basin: Southport Restricted Area Class: SC
15-Apr-98
Chlorides: n/a
Site Area 3310560 square feet
Drainage Area 187308 square feet needs to be verified
Area in Acres 4.3 acres
IMPERVIOUS AREA
Road 14375 square feet
square feet
square feet
square feet
square feet
TOTAL X4375`; square feet
% IMPERVIOUS 7.67% Pond Depth: 3 TSS: 90
SURFACE AREA CALCULATION
SA/DA 1.300%
Req. SA :2435 004 square feet
Prov. SA 2;600;: square feet [From plan Contours]
VOLUME CALCULATION
Bottom 5 MSL
Perm. Pool MSL
Design Pool 9 MSL
Design SA 3356 square feet [From plan Contours]
Req. Volume 1858.575 cubic feet Rv= 0.1190707
Prov. Volume 2'978' cubic feet SA @
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.48125 ft
Flow Q2, cfs 0.0172338 Area, in2 0.742957 Dia 2, inches 0.972606
Flow Q5, cfs 0.00689352 Area, in2 0.297183 Dia 5, inches 0.61513
Engineer uses,. Inches Area = 0.6361725 in2
Q, cfs = 0.0147568 Drawdown 2,33571 f.4' days
FILE NAME: S:\WQS\POND\951012-1.WK1
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.
DETENTION POND ANALYSIS
PROJECT #: SW8 951012-A Pond A
PROJECT NAME: Deep Point Marina
Drainage Basin: Southport Restricted Area
FILE NAME: S:\WQS\POND\951012-A.WK1
REVIEWER: arl
DATE
12-Mar-98
Class: SC
Chlorides: n/a
Site Area 917012 square feet
Drainage Area 917012 square feet
Area in Acres 21.0516988 acres
IMPERVIOUS AREA
Overall 852821 square feet
square feet
square feet
square feet
square feet
TOTAL 85282?"i square feet
% IMPERVIOUS 93.00%
Pond Depth: 4 TSS:
90
SURFACE AREA CALCULATION
SA/DA 8.170%
Req. SA 7491:9.!866 ''square feet
Prov. SA 79809,' square feet [From plan Contours]
VOLUME CALCULATION
Bottom 8 MSL
Perm. Pool 'I MSL
Design Pool 13 MSL
Design SA 92402 square feet [From plan Contours]
Req. Volume 67782.4583 cubic feet Rv= 0.8869998
Prov. Volume 861 Q5.57 cubic feet SA @
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.4166667 ft
Flow Q2, cfs 0.49829572 Area, in2 23.08666 Dia 2, inches 5.421701
Flow Q5, cfs 0.19931829 Area, in2 9.234664 Dia 5, inches 3.428985
Engineer use&L- Inches Area = 12.566371 in2
Q, cfs = 0.2712289 Drawdown : `:.T4359days
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.
VP
CAPE FEAR
Engineering, Inc.
3%3 Market Street Wilmington, NC 28403
[phone] FAX (910) 772-%79
MAR 2 6 `198
March 25,1998
Linda Lewis
NCDEHNR- Water Quality Section
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: Deep Point Marina Project-5W& 951012 Modification
Dear Ms. Lewis:
On 3/25/98 our office conducted a field inspection of the above referenced project. The water
table elevation at the proposed infiltration basin (Pond-1) appears to be higher than indicated
in the report prepared by Land Management on 12/8/97. In order to expedite your review of
this project, we have revised Pond-1 for the above referenced project to incorporate the use of
a wet pond design in lieu of the previously Submitted infiltration basin design.
Included in this submittal are the following items:
• One copy of the revised permit application & attachments for the pond information.
• Two sets of the revised construction drawings.
• One copy of the revised Project Narrative & Design Notes.
• The original Operation & Maintenance Plan revised per your instructions.
If you have any questions or comments, please contact our office.
Sincerely,
Per G. Davis, PE
(enc.)
CAPE FEAR
VP Engineering, Inc.
3963 Market Street Wilmington, NC 28403
[phone] FAX [phone]
March 25,1998
Linda Lewis
NCOEHNK- Water Quality5ection
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: Deep Point Marina Project-5W8 951012 Modification
Dear Ms. Lewis:
lay copy of this letter we are requesting that you notify Mr. Ed Brooks with LAMA, that the
construction/ approval of the proposed marina at the above referenced project io not impacted
by your review of the stormwater management plan. As we understand, this Situation occurred
at the adjacent DOT ferry site and that CAMA released the project for construction before
you had approved the stormwater management plan. We are requesting Similar consideration
for this project.
Bald Head lsland is eager to begin construction of the bulkhead for the proposed marina and any
effort to assist in this matter will be appreciated.
If you have any questions or comments, piease contact our office.
sincerely,
Perry avid, PE
L
Gc:Mr. Ed Brooks, CAMA
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Engineering, Inc.
3963 Market Street Wilmington, NC 28403
[phone] FAX [phone]
FE IZ y8
February 9, 199b
Linda Lewis
NCDEHNR- Water Quality Section
127 Cardinal Drive Ext.
Wilmington, NC 28405
RE: Deep Point Marina Project-5W& 951012 Modification
Dear Ms. Lewis:
We have reviewed your letter dated January 22,1998, and have revised the project according
to your comments. The following items are in response to your comments.
1. The road side ditch detail has been revised to reflect 3:1 slopes.
2. Spot elevations have been added around Grate Inlet #3.
3. Dimensions have been added to the permanent pool for the wet pond. Also, the
contours for the permanent pool, storage pool and the vegetated shelf have been
added and labeled.
4. The outlet structure for the wet pond has been revised according to your comments.
Also, the two wet ponds in question (Pond-6 & Pond-7) have been combined into a
single pond (Pond-2). This combination is possible due to a recent delineation of
wetland in the area that ref lects more upland area. This delieation has been approved
by the Corp of Engineers and was verbally agreed to by Mr. Ed Brooks with CAMA.
Mr. Brooks stated that he would "field truth" the delineation when a request for
modification to the existing CAMA permit is submitted. 5y combining and enlarging
the two ponds in question, four of the previously proposed infiltration ponds (Ponds
2,3,4 & 5) have been eliminated.
5. The proposed ponds and basins will be located in recorded access/ drainage
easements. These easements have been added to the drawings.
6. The previous designated tracts have been added to the drawings. The currently
submitted site will be considered the Marina tract with portions of Parcel D & Parcel
F also being developed at this time. A break down of the areas being considered as
developed for this submittal is attached to this letter.

7. A parking lot has been added to the project. This lot will temporary be used by
personnel constructing the Site and ultimately will be for parking for the ferry
passengers.
8. It is our intent to modify the existing permit (951012) to include the areas being
developed. This will require a modification to the Marina Tract and Parcels D & F.
The previously permit wet pond will remain permitted, no changes to the drainage
basin area are proposed during this phase of development.
9. A soils report has been completed for the Pond-1, the only remaining infiltration
Structure proposed at this time. This report is attached to the revised design
notes being submitted.
10. The orifice for Pond-2 has been sized for the actual volume provided in the pond.
11. The forebay design iS based on 20% of the volume of the first inch of rain.
Included in this submittal are the following items:
• Two copies of the revised attachments for the pond information.
• Two sets of the revised construction drawings.
• Two copies of the revised Project Narrative & Design Notes.
If you have any questions or comments, please contact our office.
Sincerely,
Perry G. gavio,FE
(enc.)

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l-? State of North Carolina
Department:of Environment and Natural Resources
Wilinington Regional Office
James R.:14unt, Governor Wayne McDevitt, Secretary
FAX COVER SHEET
Dater: 77 - ?` 3 0ages:
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To: 2'a~-t Ids, pg Frro:..
CO: ' -?? --? 7.? COFAX;#': ?. , REMARKS: `5 ' re" f b %zr rn, S'7Ve_ -`f h C ?2
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127 Cardlial Drive Ezaeosion. Wilmington. N.C. 28•?OSJ Tele=ltinne [phone] Fax [phone] t '
An Equal opportQtyA111rmaflve-Action Eldployer
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i i
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
James B. Hunt, Governor
Wayne McDevitt, Secretary
FAX COVER SHEET
Date: 4- 9 -9 8
To: P-en-rA DW*5. P??
CO: ('e2? C? v7eerl'l)
FAX #: '7Z (J
No. Of Pages:
From: (--gin eu1, 5
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REMARKS: 14 t 5
ni ?- SZve- -& - -f h i' s cat'2
It e(n,

127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
A4
AIIMI
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
April 9, 1998
Mr. Perry Davis, P.E.
Cape Fear Engineering
3963 Market Street
Wilmington, NC 28403
Dear Mr. Davis:
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 951012 Modification
BHI-Deep Point Marina
Brunswick County
The Wilmington Regional Office received a previously requested information for the modification
to the Stormwater Management Permit Application for BHI-Deep Point Marina on March 25, 1998. A
preliminary review of that information has determined that the application is not complete. The following
information is needed to continue the stormwater review:
The 1" orifice for Pond 1 is too large. To achieve an average flow rate of .017 cfs over two
days, the maximum orifice size is .97" $. Many people make the mistake of rounding up,
forgetting that the size that was calculated is as large as it can be. Rounding down is safer.
Please specify an orifice size between .61"$ and .97" ?, revise the detail sheets, and send me
two copies of the revised sheets. Also, revise the orifice sizing calculation, seal it, and send
me a copy.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to May 9, 1998, 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 have any questions concerning this matter please feel free to call me at (910) 395-
3900.
Sincerely,
xt:?? ??"
Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\951012-2.APR
cc: Linda Lewis
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
State of North Carolina
Department of Environment, 4 •
Health and Natural Resources
Wilmington Regional Office
Division of Coastal Management
James B. Hunt, Jr., GOVernOr NCDENR-..,
NORTH CAROLINA DEPARTMENT OF
Wayne McDevitt, Secretary ENVIRONMENT AND NATURAL-RESOURCES "-
Roger N. Schecter, Director
March 23, 1998
Lawrence R. Zucchino
1001 Wade Ave. Suite 101 -
Raleigh, NC 27605 ;
RE: Deep Point Marina Refinement Request
Dear Larry:
We received your request for modification of the above referenced permit on March 6, 1998. The
modification includes the final layout of the marine maintenance, contractor parking and barge landing
services area; an alternate design for the entrance channel breakwaters to allow water flow to the adjacent
marsh areas; and a request to construct temporary contractors ferry and barge landing for use until the
remainder of the marina is completed. We have detennined that these changes can be authorized by. I a
Letter of Refinement to the existing permit. However, prior to our issuing this refinement, you must
submit authorizations from NCDWQ-Stonmwater Section and. NCDLQ stating that revisions to the
applicant's Stonnwater and Sedimentation and Erosion Control permits have been approved.
Once we have received this infonnation, we will proceed with the issuance of the Refinement Letter. No
work may be initiated on-site until that time. If you have any questions, please feel free to call me at my
Wilmington office [phone].
_ ere y
E. F. Brooks
Field Representative
cc: Bob Stroud
Ken Stewart
File Copy
Linda Lewis, DWQ
Carol Miller, DLQ
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer
CAPE FEAR
Engineering, Inc.
3963 Market Street
Wilmington, N.C. 28403
Voice [phone]
Fax [phone]
E-mail [e-mail]
TO: LINDA LEWIS
NCDEHNR-WATER QUALITY SECTION
ATTENTION:
ORMWATEA Ea,a o„g,a ?i
DEM1
PROJ #
Transmittal
DATE: 4/9/98
PROJECT NO: 300-01
RE: DEEP POINT MARINA PROJECT
Quantity I Drawing No. I Description 11
2 6 REVISED DRAWING PER YOUR COMMENTS
2 REVISED DESIGN NOTES FOR POND-1 DRAWDOWN ORIFICE
REMARKS
LINDA: ATTACHED IS THE INFORMATION PER YOUR REQUEST IN TODAYS FAX TRANSMITTIAL.
PLEASE LET US KNOW IF WE CAN DO ANYTHING ELSE TO HELP EXPEDITE YOUR
REVIEW AND APPROVAL
CC: / C?PEWR/Engineedng, Inc.
S T 0 R Plil I Vifl, .14 T IR
we
INFILTRATION POND MAINTENANCE
Project Name:
1. Inspect the infiltration pond(s) for erosion,
condition of the facility. /
Responsible Party Name:
Address:
APR 10199f,
PhomNo:910-457-7339
After every runoff producing rainfall event, or at least
, whichever comes first:
accumulation, grass coverage, and general
2. Repair eroded areas immediately, a-seed as necessary, keep side slopes and bottom
mowed, and remove trash.
3. Check any inlet piping, swale and catch basins. Repair broken piping, reseed swales, and
remove trash.
4. Inspect the bypass/ove ow structure for blockage and deterioration. Remove blockage
and repair structure t originally approved design specifications.
5. Check the depth o the pond(s) every six months. If siltation has occurred to the point that
only 75 % of the riginal design depth is provided, remove the excess silt to the original
depth. Do not ver-excavate, as this may cause the required water table separation to be
reduced, and ay affect the ability of the system to perform as designed.
Pfizer Tract
Bald Head Island Limited
Mitchell , agree to be responsible for performing
listed above for this project. I agree to notify NCDEM of any problems with
I, M. Ken
the maintenance items
the system, or chqng s
Signature
I,
in ;he name of th project, name of the responsible parry, or address.
Date
a Notary Public in the County of
State of ylA,th do hereby certify by my
signature low, that M, Ae, -r 7 a / personally
appeared fore me this yX-A-- day of , 19 q /6 , and acknowledge
the due a cution of the foregoing instrument. Witness my seal and signature,

My commission expires 3 /0 9 2
ro
aft p.5`. ?-?!'.a? ?U`'iof
e.a. ooa
Expires
r?Y ?o?etVCSF'851on
State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
April 15, 1998
Mr. M. Kent Mitchell, General Partner
Bald Head Island, Ltd.
PO Box 3069
Bald Head Island, NC 28461
WIT7.1WA
?f
NCDEN
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. SW8 951012 Modification
Deep Point Marina
High Density Commercial Stormwater Project
Brunswick County
Dear Mr. Mitchell:
The Wilmington Regional Office received the modification for the Stormwater Management Permit Application for Deep
Point Marina on November 17, 1997, with final information on April 9, 1998. 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 dated April 15, 1998, for the construction of Deep
Point Marina.
This permit shall be effective from the date of issuance until April 15, 2008, and shall be subject to the conditions and
limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit.
Failure to establish an adequate system for operation and maintenance of the stormwater management system will result
in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be
in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this
permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at
[phone].
Sincerely,
Rick Shiver, P.G.
Acting Regional Water Quality Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\951012.APR
cc: Mark Ashness, P.E.
Delaney Aycock, Brunswick County Inspections
Ed Brooks, DCM
John Parker, DCM
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% 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
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
Bald Head Island, Ltd.
Deep Point Marina
Brunswick County
FOR THE
construction, operation and maintenance of 3 detention ponds in compliance with the provisions of 15A NCAC 2H .1000
(hereafter referred to as the "stormwater rules") and the approved stormwater management plans and specifications and
other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of
this permit.
This permit shall be effective from the date of issuance until April 15, 2008 and shall be subject to the following specified
conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater described in the application and
other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this
permit, the Project Data Sheet. Pond A has been designed to handle the runoff from 852,821 ft2 of impervious area.
Pond 1 has been designed to handle 14,375 ft2; and Pond 2 has been designed to handle 282,927 ft2, and is required
to be operated with a vegetated filter.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the
permit.
4. The tract will be limited to the amount of built-upon area indicated on page 3 of this permit, and per approved
plans.
2
State Stormwater Management Systems
Permit No. SW8 951012 Modification
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
Pond Number:
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Total Impervious Surfaces, ft2:
Future, ft2
Offsite Area entering Pond, ft2:
Required Surface Area, ft2:
Provided Surface Area, ft2:
Required Storage Volume, ft3:
Provided Storage Volume, ft3:
Temporary Storage Elevation, FMSL:
Controlling Orifice:
IVISION OF WATER QUALITY
PROJECT DATA SHEET
Deep Point Marina
951012 Modification
Brunswick County
Mr. M. Kent Mitchell, General Partner
Bald Head Island, Ltd.
PO Box 3069
Bald Head Island, NC 28461
November 17, 1997
Southport Restricted Area
"SC"
A 1 2
4 3 3.5
12 8 4.5
852,821 14,375 282,927
n/a n/a 142,877
None, per Engineer
74,920 2,435
79,809 2,600
67,782 1,859
86,105 2,978
13 9
4"$ pipe 0.9 pipe
21,083
21,633
22,835
23,013
5.5
2.5+ pipe
3
A.
State Stormwater Management Systems
Permit No. SW8 951012 Modification
Deed restrictions must be recorded prior to the sale of any outparcel or future area shown on the approved plans
to ensure that future owners are made aware of the built-upon area limitations. The following statement must be
recorded:
To ensure continued compliance with the NC Division of Water Quality Stormwater Management Permit
Regulations, 15A NCAC 2H. 1000, the future area draining to Pond 2 as shown on the approved plans is
limited to 142,877 square feet of built-upon area, inclusive of that portion of the right-of-way between the
front lot line and the edge of the pavement, structures, pavement, walkways of brick, stone, slate, but not
including wood decking or the water surface of swimming pools. "
"All built-upon area from the future area must be directed into the permitted stormwater control system. "
"Additional built-upon area will require a permit modification. "
"The connection into the stormwater control shall be made such that short-circuiting of the system does not
occur."
6. The permittee is responsible for verifying that the proposed built-upon area does not exceed the allowable built-
upon area.
7. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built-upon area.
e. Further subdivision of the project area.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
In addition, the Director may determine that other revisions to the project should require a modification to the
permit.
8. 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.
H. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the stormwater
management system:
a. The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's
intended use prior to the construction of any built-upon surface except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be
repaired immediately.
C. All connections into the stormwater system from future areas/outparcels shall be made such that short-
circuiting of the system does not occur.
4
State Stormwater Management Systems
Permit No. SW8 951012 Modification
2. 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
h. The vegetated filter will be kept grassed with no erosion. The spreader mechanism will be kept clear.
3. 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.
4. 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.
5. 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.
6. Prior to the sale of any portion of the property, deed restrictions must be recorded and submitted to the DWQ
within 30 days of the date of the recording. The recorded copy must be signed by the permittee, dated, stamped
with the deed book number and page, and bear the stamp of the Register of Deeds.
7. 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.
8. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities shall
be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale of any portion
of the property.
III. GENERAL CONDITIONS
1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a
name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality
accompanied by an application fee, documentation from the parties involved, and other supporting materials as may
be appropriate. The approval of this request will be considered on its merits and may or may not be approved.
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) which
have jurisdiction.
5
State Stormwater Management Systems
Permit No. SW8 951012 Modification
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 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.
Permit issued this the 15th day of April, 1998.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E., Directo
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 951012 Modification
6
State Stormwater Management Systems
Permit No. SW8 951012 Modification
Deep Point Marina
Stormwater Permit No. SW8 951012 Modification
Brunswick County
Engineer's Certification
1, , as a duly registered Professional Engineer 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.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
7
DIVISION OF WATER QUALITY
NORTH CAROLINA STORMWATER MANAGEMENT PERMIT APPLICATION
1. GENERAL INFORMATION
(Please print clearly or type)
1. Project Name F [;U
2. Location, directions to project (include County, Address, State Road) Attach map. _*0?a tf 6MA:

3. Owner's Name ,a!LS? Jt?2LeAk?:JL21 Phone L I O? 45-7-
4. c
Owner's Mailing Address. O. ,?jC, ??p(pq
City l"J +6t?-P State Lk,, Zip gaV J
5. Nearest Receiving Stream ('lass
6. Projectdescription_??j ?? JAE_
II. PERMIT INFORMATION
1. Permit No. (To befilled in byDWQ)
2. Application Date pl ? 15-:7 Feeenclosed $
3. Permit Type: New Renewal. Modification (existing?ermit No.) 6618 GI 1'? ?p ?y
4. Project Type: Low Density Detention Infiltration Redevelop -.General Alter Offsite
5. Other State/Federal Permits/Approvals Required (Check appropriate blanks)
CAMA Major_t.,? Sedimentation/Erosion Control 404 Permit
III. BUILT UPON AREA (Please see NCAC 2H. 1005 thru .1007for applicable density limits)
Drainage Drainage
Basin Basin
Classification . ,AM
?
Existing Built-upon Area F7 [ b p
j_ ,

Proposed Built-upon Area
?rr?.
J?1- ?3t°c ?l t?
Iv?)
Total Project Area _7( aG,
% Built-upon Area -j
Breakdown of Impervious Area
(Please indicate below the design impervious area)
Buildings ?J. ?. At---
Streets
Parking/SW Z?e•7?G.
Other 0,9 AG,
Totals., ?ip•
IV. STORMWATER TREATMENT (Describe how the ruisoff will be treated)
1. BUILTURON AREA CALCULATION (See NCAC 2H.1008 (c) and (e) for applicable design criteria. In
cases where more than one pond is proposed, please list each pond's information in separate columns.)
?Epr t f f'(t1l-_1
Pond # '` Is o - -z rID
Classification ?;K_
Existing Built-Upon Area
Proposed Built-Upon Area
Total Project Area
Total Drainage Area
Percent Built-Upon
1611 CP,4r,-
II. BREAKDOWN OF PROPOSED BUILT-UPON AREA
Buildings
lots @ sf/lot
Streets/Parking
Sidewalks
Future Development
Other
III. POND DESIGN
Pond Depth
TSS Chart (85% or 90%)
SA/DA ratio

0.33.
-7.1 ?MWATER
E O E I V E
D
MAR 251998
DENT
PROJ #
'; . I Cp A e,
a• 3°a?G

0 0
6'2 l.?
Required Surface Area @PP _7Tz 2 23} j2
Provided Surface Area @PP C1 evq 'z z I oz ZCo02 Z
Required Volume & F 5? j14 20,6+1 r4
Provided Volume 869 0 5V!? 23 0 l $ Z-0180M3
Permanent Pool Elevation Z /, . .Gj MSL g•O t14L
Storage Pool Elevation 17
Storage Pool Surface Area q2T ?°I? 2 ?j2
Forebay Depth 3T
See Attachment A for specific language that must be used for projects that propose the subdivision and selling of lots or outparcels,
or have future development areas..

Pfizer Tract, Southport, NC DEHNER # SW8-951012 STORMWATEF
OPERATIONS AND MAINTENANCE PLAN
STORMWATER MANAGEMENT
FOR: BALD HEAD ISLAND PLANNING DEPARTMENT
PFIZER TRACT MARINA/PARKING FACILITY
STATE ROAD 1540, SOUTHPORT, NC
I. WET DETENTION BASIN
Page 1 of 2 pages. E C E I V E
D
APR 161996
PROJ # ICS 2-
1. Vegetation: Vegetation for stabilization of side slopes shall be a hearty ground cover
such as the following: Tall Fescue, Bermuda Grass, Pensacola Bahiagrass, or Reed
Canary Grass. All of these are well suited for flooding tolerance and waterways and
channels. The bahiagrass is excellent for sandy sites. The others spread by rootstocks
making a well anchored and stable ground covering. Developer/developer's landscape
planner may use other suitable local vegetation. Grassing of all disturbed areas to be
completed as soon as practical after completion of grading. In any event, ground cover to
be established within 30 days time period.
2. Fencing: Fencing around the wet retention basin shall be at the option of the
developer. Any fencing provided shall be of suitable quality and height for the purpose of
safety, with sufficiently sized gates that will allow machinery/trucks access for mowing
and sedimentation removal.
3. Vector Control: Developer shall coordinate with the Brunswick County Health
Department for vector control considerations.
4. Detention/Retention Outlet Systems: Outlet structures for detention/retention basins
shall be provided with suitable foundation and support. Pipe systems shall be bedded as
required or other suitable support provided. Outlet structures shall be properly anchored
to prevent flotation.
5. Maintenance:
As a minimum, the following maintenance items shall be performed for the Pond:
a. Grassing around the detention/retention facility shall be maintained to prevent the
erosion of these areas. The areas shall be periodically mowed to maintain the site and to
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a) a)
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prevent reduction in the capacity of the stormwater system. Grass on slopes should not Q o
exceed a height of 15". a
b. Landscaping of the area around the detention/retention facility shall be such that it does
not reduce the capacity nor hinder operations & maintenance of the stormwater s stem.
c. The detention/retention facility shall be maintained at the design depth7The pond shall
be inspected on a regular basis and cleaning of accumulated debris will be nececssary if:
1. the primary outlet capacity is impaired and/or
2. the pond or forebay volume is reduced by 25% of the design volume.
d. The system shall be routinely checked for accumulation of debris and the detention/
retention facility outlet structure cleared of any blockage that is present.
e. Repair of erosion or other damage shall take place in a reasonable period of time.
f. A log shall be kept indicating the date of at minimum a semi-annual inspection of the
pond and stormwater system.
Owner/Authorized Agent Approv Date: A7/?
Prepared by: Bruce Marek, P.E. Rev. 4/8/96
Pfizer Tract, Southport, NC DEHNER # SW8-951012
OPERATIONS AND MAINTENANCE PLAN Page 2 of 2 pages.
STORMWATER MANAGEMENT
H. SWALES, CULVERTS, CATCH BASINS, UNDERGROUND SAND FILTERS
1. In order for the stormwater management system to work properly at all times, it will be
necessary to maintain all elements of the system. A system includes open channels, catch
basins, pipes, ponds, outlet controls, etc. Especially important are vegetative lined
systems and silt or debris retaining devices. In order for the system to operate in the
correct manner periodic maintenance will be required. Any swales/ponds used for
sedimentation control during construction are to be returned to design configuration at
completion of construction.
2. Maintenance:
As a minimum, the following maintenance items shall be performed for the Pond:
a. Open ditches (swales) shall be kept free of undesirable growth and mowed or
maintained to the design cross-section and area. Growth on slopes and bottom of swales
should not exceed a height of 8". Grasses to be same as per page 1, #1.Vegetation.
b. Infiltration swales and sand filters shall be checked for excessive buildup of sediment
which could impair infiltration rate. Cleaning/repair is required if infiltration is slowed to
design allowables.
c. The swales shall be routinely checked for accumulation of debris and should be cleared
of any blockage that is present. Swale side slopes should be checked for erosion after
run-off producing rainfall events. Additional riprap protection/stabilization, concrete
lined swales, or catch basins with pipe outlet to retention pond should be considered for
any drainage swales experiencing high flows/ repeated erosion.
d. Storm drainage pipes and culverts shall be periodically inspected for debris and sand
build-up. They shall be cleaned as necessary to provide for the free conveyance of
stormwater as designed.
e. Repair of erosion or other damage shall take place in a reasonable period of time.
f. A log shall be kept indicating the date of at minimum a semi-annual inspection of the
stormwater system.
M. GENERAL NOTES:
1. An acceptable entity shall be responsible for maintenance of the stormwater
management system. If the entity is a private corporation or a governmental unit, written
proof shall be supplied in an appropriate form that the entity will operate and maintain the
facilities. The property owner/developer is acceptable if the property is retained and
operated by the owner.
2. If a property owner's association is proposed for this or future development phases,
and the association is responsible for some or all of the site stormwater management, then
the organization shall be created with the ability to accept future phases into the
organization in order to ensure the continued operation and maintenance of the
stormwater management for the development.
Owner/Authorized Agent Approv Date:
------------- W--W-- I fdm:r? lqle2
Prepared by: Bruce Marek, P.E. Rev. 4/8/96