SW8020503_HISTORICAL FILE_20110811

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

Arr
NICDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
August 11, 2011
Mr. David Nathans, President
Plantation, Inc.
P.O. Box 2473
Wilmington, NC 28402
Subject: PERMIT RENEWAL REQUEST
Stormwater Permit No. SW8 020503
City Block
New Hanover County
Dear Mr. Nathans:
Dee Freeman
Secretary
The Division of Water Quality issued a Coastal Stormwater Management Permit, Number SW8 020503 to Plantation, Inc. for a
High Density project on July 22, 2002. This permit expires on July 2, 2012, Per 15A NCAC 21-1.1003(h) (the stormwater rules),
applications for permit renewals shall be submitted 180 days prior to the expiration of a permit and must be accompanied by a
processing fee, which is currently set at $505.00. If this is still an active project please complete and submit the enclosed
renewal application prior to January 22, 2012. If this project has not been constructed and a permit is no longer needed, please
submit a request to have the permit rescinded. If you have sold the project please provide the name, mailing address and phone
number of the person or entity that is now responsible for this permit. Enclosed is a form for change of ownership, which should
be completed and submitted if the property has changed hands.
Your permit requires that upon completion of construction and prior to operation of the permitted stormwater treatment system,
a certification of completion be submitted to the Division from an appropriate designer for the type of system installed. This is to
certify that the permitted facility has been installed in accordance with the permit, the approved plans, specifications and
supporting documentation. If you have not already provided a Designer's Certification to our office, please include a copy with
your permit renewal request and processing fee. A copy of the certification form is enclosed for your convenience.
You should be aware that failure to provide the Designer's Certification and the operation of a stormwater treatment facility
without a valid permit, are violations of NC General Statute 143-215.1 and may result in appropriate enforcement action
including the assessment of civil penalties of up to $10,000 per day.
If you have any questions, please feel free to contact David Cox at [phone].
Sincerely,
Georgette Scott
Stormwater Supervisor
GDSldwc S:1WQS1Stormwater\Permits & Projects12002 \020503 HD12011 08 req_ren
cc: Wilmington Regional Office File
encl.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
No hCarofina
;Vatura!!y
An Equal Opponunity 1 Affirmative Action Employer

SOS1D:0436786
Date Filed: 6/10/2010 8:53:00 AM
M-478 (42) Business Corporation North Carolina An Elaine F. Marshall
1f1-28Ot3 Nortlt Carnlina Secrcfxry of Stxtc
This report may be filed online at the Secretary of State website: CA201017400269
Name of Bus. Corporation: PLANTATION BUILDING CORP.
Fiscal Year Ending: 12 31 09 State of tncorporation: NC
Month 1 Day / Year
Secretary of State ID Number: 0436786
❑I hereby certify that the Information! requested below (required by NCGS 55-16-22) has not changed since the most recentty filed annual
report and is therefore complete.
Nature of Business: GENERAL CONTRACTOR
Registered Agent: DAVID A. SPETRINO, JR .
Registered Office Mailing Address: 720 N . 3 RD STREET, STE . 301
County: NEW HANOVER City: WILMINGTON State: NC zipcode:28401
Registered Office Street Address: PO BOX 2473
County: NEW HANOVER City: WILMINGTON
Signature of New Registered Agent:
(Signature constitutes consent to the appointment)
Principal Office Telephone Number: 910 — 7 6 3— 8 7 6 0
Principal Office Mailing Address: PO BOX 2473
city: WILMINGTON
Principal Office Street Address: 720 N. 3RD STREET, STE.
City: WILMINGTON
Name, Title, and Business Address of Principal Officers:
State: NC Tip Code: 28402
State: NC Zip Code: 2 8 4 0 2
State: NC Zip Code: 28401
Name: DAVID A. SPETRINO, JR Title. PRESIDENT
Address: 10 CHURCH STREET
City: WILMINGTON State: NC Tap: 28401
Name: KATHRYN R. SPETRINO Title: SECRETARY
Address: 10 CHURCH STREET
City: WILMINGTON state: NC Tap: 28401
Name: Title:
Address:
City: State: Zip:
Ce ' tipn at annual report (Must be cornpleted by all Business Corporations),
Signature iForm must bo Signed by an officer of corporation)
'AA.►,� q WC-rcrwo 1R.-
Type or Print Name
4 it,
Date
%L TattSt�Torr
TIW

OF WATER Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E.,Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
March 23, 2004
Mr. David Nathans, President
Plantation, Inc.
PO Box 2473
Wilmington, NC 28402
Subject: Approved Plan Revision
City Block
Stormwater Project No. SW8 020503
New Hanover County
Dear Mr. Nathans:
On February 20, 2004, the Wilmington Regional Office received a plan revision for
Stormwater Management Permit Number SW8 020503. The revisions include the
increase of the building area for Brooklyn House, and a decrease in the sidewalk and
parking lot area'such that the total is still under the 46,476 ft that was originally
permitted . It has been determined that a formal permit modification is not required for
the proposed changes. We are forwarding you an approved copy of the revised
approved plans for your files. Please add this sheet to the originally approved plan set.
Please be aware that all terms and conditions of the permit issued on July 22, 2000,
remain in full force and effect. Please also understand that.the approval of this revision
to the approved plans for the subject State Stormwater Permit is done on a case -by -
case basis. Any other changes to this project must be approved through this Office
prior to construction. The approved changes must be constructed as shown on the
revised, approved plans.
If you have any questions concerning this matter, please do not hesitate to call me at
[phone]..
Sincerely,
Linda Lewis
Environmental Engineer
RSSlarl: S:IWQSISTORMWATIREVISION1020503.mar04
cc: Phil Tripp, P.E., Tripp Engineering
Tony Roberts, New Hanover County Building Inspections
Linda Lewis
Wilmington- Regional-Ofl'icP'
Central Files
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service Af#A
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] NCDENR

TRIPP ENGINEERING, P.C.
419 Chestnut Strcet
Wilmington, North Carolina 25401
Phone: [phone] • FAX: [phone]
February 20, 2004
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Brooklyn House
Dear Linda:
0
In response to your email dated 01-06-04,
I hope the following numbers will help
calculate the drainage area for the project (Brooklyn House).
As built Proposed
Future
Total
Permitted
Buildings 5,875 9,000
3,350
18,225
17,473
Sidewalk
11,693
11,693
12,596
On site parking
15,844
15,844
16,407
45,762
46,476
As you can see, by increasing the proposed building
s.f. the sidewalk area has been
reduced, as has the on -site parking area.
I am enclosing a copy of the original project with highlighted drainage areas, and the
current project (Brooklyn House) with the originally permitted infiltration trench details.
Could you please review these and contact us with any comments.
Sincerely,
Tripp Engineering, P.C.
Jacqueline King
jk:dcb

For Charlie- Brooklyn House City Block 020503
Subject: For Charlie- Brooklyn .House City Block 020503
From: Linda Lewis <[e-mail]>
Date: Tue, 06 Jan 2004 17:02:48 -0500
To: Phil Tripp <[e-mail]>
Charlie.
I'm still having some trouble with this plan revision. When I
at the original plans, it appears that everything between the
buildings is intended to be grassed, because I cannot see any
regarding the proposed material to be installed. If it wasn't
marked specifically as BUA, it is assumed as grass.
look
notes
Further, the drainage area for trenches A, B, and AB is 51,836 sq.
ft., and the permitted impervious is 46,476, meaning that there is
5,360 sq. ft.. of "open" area somewhere within it. I am hard-pressed
to find it, based on the revised site plan. It appears to me to be
almost entirely impervious now.
If you can mark up a site plan that clearly shows the open areas
and do a quick calculation of that open area, demonstrating that
there is 5,360 sq. ft. of pervious area within that one drainage
area, I'll move on with it.
Additionally, I have added the trench identifiers B, C, D and E, to
the revised plan in red. Please remember that if we replace an
approved plan sheet with a revised one, it MUST contain ALL of the
previously permitted information that is not being changed as a
result of the modification. That plan sheet will be used to
determine the future compliance of the entire project for the life
of the project, not just the Brooklyn House part. Also, the new
detail sheet does not contain the previously approved trench
section details. Please remove the new sheet from the approved plan
set and just use the previously permitted detail sheet.
Thanks, Linda
1 of 1 1 /6/2004 5:04 PM

City Block SW8 020503
Subject: City Block SW8 020503
From: "Phillip Tripp" <t6ppeng [e-mail]>
Date: Mon, 15 Dec 2003 14:29:24 -0500
To: "Linda Lewis" <[e-mail]>
Linda,
In response to your correspondence dated December 12, 2003 for City Block
(SW8 020503), we offer the following:
• Yes, the building is slightly larger, but it displaces areas that were already
impervious (i.e. sidewalks).
• The areas of brick -like pattern have always been accounted for as built -upon
area in all previous plans.
• The current landscaping requirements bring forth a reduction in the
previously permitted sidewalk areas. Therefore, the proposed built upon
area is now less than the originally permitted area.
Please contact us with any questions, comments or if you need any additional
information. Thank you.
Charles Cazier, E.I.
Tripp Engineering
1 of 1 12/19/2003 5:11 PM

FILE MODE
-805 MEMORY T
COMMUNICATION RESULT REPORT ( DEC.12.2003 1:57PM
OPTION
----REASON
-FOR ERROR
E-1) HANG UP OR LINE FAIL
E-3) NO R14SWER
ADDRESS (GROUP)
- 9-7635631
RESULT
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P. 1
NCDENR WIRO
PAGE
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�- P. 1/1
E-2) BUSY
E-4) NO FACSIMILE CONNECTION
Q WAr �4 Michael F. Easley, Governor
Q William G. Ross Jr. Secretary
Ap North Carolina Department of Environment and Natural Nesources
Alan W. Klimek P.E.,Dlrector
p Division ofWater Quality
Coleen M, Sullins, De uty Director
Division of Water Quality
FAX COVER SHEET
Date:
December 12, 2003
To-
Phil Tripp, P.E.
Company:
Tripp Engineering
FAX #:
763-5631
No. of Pages: 1
AV
From: Linda Lewis
Water Quality Section - Stormwater
FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 020503
Project Name: City Block
MESSAGE:
Phil:
The last revision, dated November 4, 2002, indicated that within the area of the
proposed Brooklyn House, there are three buildings, totaling 8,590 square feet. This
latest revision is showing a 9,000 square foot structure.
Additionally, the revised plans now show a brick -like pattem in all of the spaces
L,-A..._-- 4@_ . I ., . . . . . ..-

0� WATFy Michael F. Easley, Governor
`a Q William G. Ross Jr., Secretary
,CA North Carolina Department of Environment and Natural Resources
co
Alan W. Klimek, P.E.,Director
p Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
FAX COVER SHEET
Date: December 12, 2003 No. of Pages: 1
To: Phil Tripp, P.E. From: Linda Lewis
Company: Tripp Engineering Water Quality Section - Stormwater
FAX #: [phone] FAX # [phone]
Phone # [phone]
DWQ Stormwater Project Number: SW8 020503
Project Name: City Block
MESSAGE:
Willi
The last revision, dated November 4, 2002, indicated that within the area of the
proposed Brooklyn House, there are three buildings, totaling 8,590 square feet. This
latest revision is showing a 9,000 square foot structure.
Additionally, the revised plans now show a brick -like pattern in all of the spaces
between the buildings labeled as "Future pedestrian walkway (Open Space)" . Was this
area previously grassed area, or was it accounted for as built -upon originally?
RSSlarl: S:1WQSlSTORMWATIADDINFO\20031020503.decO3
N. C. Division of Water Quality 127 Cardinal Drive Extension [phone] Customer Service
Wilmington Regional Office Wilmington, NC 28405 [phone] Fax [phone] NCDEI'v'3t

0
w A TFR0
G
7
r_
Mr. David Nathans, President
Plantation, Inc.
PO Box 2473
Wilmington, NC 28402
Dear Mr. Nathans:
Michael F. Easley, Governor
William G. Rass, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Wilmington Regional Office
November 4, 2002
Subject: Approved Plan Revision
City Block
Stormwater Project No.SW8020503
New Hanover County
On September 11, 2002 , the Wilmington Regional Office received a plan revision for
Stormwater Management Permit Number SW8020503. It has been determined that a formal
permit modification is not required for the proposed changes. We are forwarding you an
approved copy of the revised plans for your files. Please replace the old approved plan sheet(s)
with the new one(s).
Please be aware that all terms and conditions of the permit issued on July 22, 2000,
remain in full force and effect. Please also understand that the approval of this revision to the
State Stormwater Permit is done on a case -by -case basis. Any other changes to this project must
be approved by this office prior to construction. If it is determined that the proposed revision
will require a modification to the permit, you will be notified.
If you have any questions concerning this matter, please do not hesitate to call me at
[phone].
Sincerely,
Noelle Lutheran
Environmental Tech V
RSSlnml: S:1WQSISTORMWATIREVISiON1020503Nov
cc: -Noelle-Lutheran-\
Phil Tripp, Tripp Engineering
New Hanover Building Inspections
Central Piles
NCI)Eh'.R
N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 [phone] Fax [phone] Customer Service
800-623-7748

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone]
sE� 1 l zaaz
September 11, 2002
NCDENR BY :
Division Water Quality
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Noelle Lutheran
Re: City Block
SW8 020503
New Hanover County, NC
TE 01141
Dear Noelle:
As per our phone conversation, we have adjusted the location of some of the
trenches. The net change of volume is +71.24 cf. The length of 24" pipe has been
changed to +l 5 If, 12" pipe to +20 If, and 6" pipe to +45 If.
Enclosed please find two (2) sets of plans and one adjusted underground
infiltration supplement form. Please review for approval and contact us with any
questions, comments or if you need additional information. Thank you.
Sincerely,
Tripp Engineering, P.C.
C421Z 0- .
Charles D. Cazier, E.I.
CDCAcb
Eric,

Permit No. S-Wg
(to be provided by DIVQJ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
UNDERGROUND INFILTRATION TRENCH SUPPLEMENT
This form may be photocopied far use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
underground infiltration trench supplement for each system, design calculations, and plans and specifications
showing all stormwater conveyances and system details.
1. PROJECT INFORMATION
Project Name:
k
Contact Person: Charles Cazier Phone Number: 910 763-5100
For projects with multiple infiltration systems, a supplement form must be completed for each system. This
worksheet applies to: Trench _A & B & AB in Drainage Area 2
(from plans) (from Form SWU-101)
11. DESIGN INFORMATION (attach supporting calculations/documentation):
Soils Report Summary (based uport an actual field investigation and soil horings)
Soil Type Orange tan fine to medium sand
Infiltration Rate 42 n/hr or cf/hr/sf (circle appropriate units)
SHWT Elevation 37 fmsl (Seasonal High Water Table elevation)
`french Design Parameters
Design Volume 3873 c.f.
Design Storm
Drawdown Time
Perforated Pipe Size
Perforated Pipe Length
No. Observation Wells
Stone Type (if used)
Stone Void Ratio
1.0 inch event (1.5 inch event for SA waters, I inch event for others)
1.14 days hours
b", 1_ 2 24"inch diameter
309', 240', 15 P ft.
NA
#57 crushed granit
0.40
'french Elevations (in feet mean sea level)
Bottom Elevation 47.5 fmsl
Storage/Overflow Elevation 51.5 fmsl
(may he required on a case-hy-case basis)
SWU-107 Rev3.99 Page t of

Trench Dimensions
Fleight -4 � ft. Length 265 ft.
Width _varies ft
(10', 20', 30')
111. REQUIRED ITEMS CHECKLIST
Volume Provided 7135.24 cu.ft.
The following checklist outlines design requirements per the Stormwater Best Management Practices manual (N.C.
Department of Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15
A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Applicants Initials
C_ 7P a. System is located 50 feet from class SA waters and 30 feet from other surface waters.
G b. System is located at least 100 feet from water supply wells.
G c. Bottom of system is at least 2 feet above the seasonal high water table.
d. Bottom of the system is 3 feet above any bedrock or impervious soil horizon.
cM _ e. Off-line system, runoff is excess of the design volume bypasses the system (bypass detail
provided).
f. System is designed to draw down the design storage volume to the proposed bottom
elevation under seasonal high water conditions within five days based upon infiltration
through the bottom only (a hydrogeologic evaluation may be required).
GTc� g. Soils have a minimum hydraulic conductivity of 0.52 inches per hour.
C <= h. System is not sites on or in fill material or DWQ approval has been obtained.
v
DL _ i. Plans ensure that the installed system will meet design specifications (constructed or
restored) upon initial operation once the project is complete and the entire drainage area is
stabilized.
-C j. System is sized to take into account the runoff at the ultimate built -out potential from all
surfaces draining to the system, including any off -site drainage.
k. System is located in a recorded drainage easement for the purposes of operation and
maintenance and has recorded access easements to the nearest public right-of-way.
1. System captures and infiltrates the runoff from the first 1.0 inch of rainfall (1.5 inch event
for areas draining to SA waters).
m. Drainage area for the device is less than 5 acres.
n. A pretreatment device ( filter strip, grassed swale, sediment trap, etc.) is provided.
o. Trench bottom is covered with a layer of clean sand to an average depth of 4 inches.
p. Sides of infiltration trench are lined with geotextile fabric.
ef _ q. Rock used is free of fines (washed stone) and has large void ratio.
r. Side to bottom ratio is less than 4:1.
SWU-107 Rev 3.99 Page 2 of 4

9/10/2002
CDC
WATERSHED DATA
Total Drainage Area
s . ft. acres
51,774 1.19
CITY BLOCK
Infiltration Trench A B
10-year Storm
Impervious Area
Land Use
s , ft.
I acres
buildings___
17,473
0.40
park in las halt
16,407
0.38
concrete
12,596
�46,476
0.29
Total
1,07
INFILTRATION SYSTEM:
Volume of first inch of runoff = (impervious area)1112
V= 3,873.00 cu-ft
Volume of pipe provided= Area x Length
Vpipe6"= 60,64 cu-ft
Vpipel2"= 189.16 cu-ft
Vpipe24"= 474.10 cu-ft
Volume of trench provided= (LxWxD) - total pipe volume
Vtp= 16,028,34 cu-ft
Storage volume provided= (Vtp `0.40) + total pipe volume
V = 7,135.24 cu-ft
DRAWDOWN TIME:
Depth of infiltration system:
D= 4 ft.
Infiltration Rate of soils:
R= 42 inlhr
Drawdown time:
DDT= 1.14285714 hrs,
``\\\\1111i111tt!!/
C,AR011���i,,�`
?9
SEAL 9rti
17374GRE
Q
11111I i1
09.10.OZ.
f
°% impervious = 0.898
= 89.8°%
say 90.0°%
CPRE = 0.25
CPOST = (°% imp.)(.95)+(1-0% imp,)(.25)
0,88
110 = 7.23 inlhr
125 = 3.15 inthr
01141

TRIPP ENGINEERING, P.C.
419 Chestnut Street, Wilmington, NC 28401
Phone: [phone] • FAX: [phone]
Email: [e-mail]
1 r I LETTER OF TRANSMITTAL
To:
Attention:iS
Subject:
FAX TRANSMITTAL: NUMBER OF PAGES INCLUDES COVER
I am sending you: ( ) ATTACHED ( ) UNDER SEPARATE COVER
( -1--Prints ( ) Tracings ( ) Copy of letter ( ) Specifications ( ) Other
Copies Item No. Description
,-1—
These are transmitted as checked below:
( ).Far Approval ( ) For Your Use { } Sign & Return { -review
Remarks:
cc:

TRIPP ENGINEERING, P.C.
419 Chestnut Street, Wilmington, NC 28401
Phone: [phone] - FAX: [phone]
Email: [e-mail]
LETTER OF TRANSMITTAL
To: ,
D N1
Attention: L,1&. Lf(& )is _
Subject:
FAX TRANSMITTAL: NUMBER OF PAGES INCLUDES COVER
I am sending you: ( ) ATTACHED ( ) UNDER SEPARATE COVER
( ) Prints ( ) Tracings ( ) Copy of letter ( ) Specifications ( } Other
These are transmitted as checked below:
( }.For Approval ( -J"For Your Use ( ) Sign & Return ( } Review
Remarks:
cc:
9-�- M1-4M_'M'k 6W��

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] - FAX: [phone]
December 8, 2003
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Laurel Oaks
SW8020503
Dear Linda:
For your information we are currently seeking approval from the City of
Wilmington for a phase of the project (Laurel Oaks) SW8020503. This phase was
designated as future development with a permitted impervious building area of 8,611 sf,
and a paved area of 2,055 sf within the tract area of 11,684 sf. Our proposed plans are
calling for a building area of 9,000 sf and a paved area of 1,448 sf, which is less
impervious than originally permitted. The City is asking us for your approval before
release of a permit.
1 am enclosing a copy of the original project (Laurel Oaks) with tract area highlighted, and
the current project (Brooklyn House).
Could you please review these and contact us with any comments.
Sincerely,
Tripp Engineering, P.C.
GGG
i
Jacqueline King
jk:dcb

State Stormwater.Management Systems
Permit No. SW8 020503.
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
Plantation, Inc.
City Block
New Hanover County :a
FOR THE :} r
• Y C�. .
construction, operation and maintenance of four infiltration trench systems 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 July 22, 2012, and shall be subject
to the following specified conditions and limitations:
1. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described on page 3 of this permit, the Project Data Sheet. The stormwater controls have
been designed to handle the runoff from 71,849 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area indicated on page 3 of this
permit, and per approved plans.
4. All stormwater collection and treatment systems must be located in either dedicated
common areas or.recorded easements. The final plats for the project will be recorded
showing all such required easements, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must
be directed into the permitted stormwater control system. A permit modification must be
submitted and approved prior to the construction of additional built -upon area from
outside of the approved drainage area.
2

f
State Stormwater Management Systems
Permit No. SW8 020503
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name:
City Block
Permit Number:
SW8 020503
Location:
New Hanover County
Applicant:
Mr. David Nathans, President
Mailing Address:
Plantation, Inc.
PO Box 2473
Wilmington, NC 28402
Application Date:
July 16, 2002
Receiving Stream/River Basin/Index #:
Cape Fear / Cape Fear River/
18-(7 1)
Classification of Water Body:
"SC"
Trench Number:
A,B,AB C
D
E
Pond Depth, feet:
4 4
4
4
Permanent Pool Elevation, FMSL:
47.5 46.5
42
40
Drainage Area, acres:
51,836 12,197
5,663
13,939
Total Impervious Surfaces, ftz:
46,476 8,712
4,382
12,280
Offsite Area entering Pond, ftz:
none per Engineer
Required Storage Volume, ft3:
3,873 720
365
1,023
Provided Storage Volume, ft3:
7,064 1,528
1,072
1,698
Temporary Storage Elevation, FMSL:
51.5 50.5
46
44
Controlling Orifice:
Infiltration Drop Inlet with Overflow
Type of Soil:
Orange Tan Fine to Medium Sand
Expected Infiltration Rate:
42" per hour
SHWT Elevation, FMSL:
37
Time to Drawdown, hrs:
1.14

State Stormwater Management Systems
Permit No. SW8 020503
II. SCHEDULE OF COMPLIANCE
The stormwater management system shall be constructed in it's entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the
system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance necessary to assure
the permitted stormwater system functions at optimum efficiency. The approved
Operation and Maintenance Plan must be followed in its entirety and maintenance must
occur at the scheduled intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader,
catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of
person performing the work and what actions were taken.
5. Decorative spray fountains will not be allowed in the stormwater treatment system.
6. The facilities shall be constructed as shown on the approved plans. This permit shall
become voidable unless the facilities are constructed in accordance with the conditions of
this permit, the approved plans and specifications, and other supporting data.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has been
installed in accordance with this permit, the approved plans and specifications, and other
supporting documentation. Any deviations from the approved plans and specifications
must be noted on the Certification. A modification may be required for those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
9. The permittee shall submit to the Director and shall have received approval for revised
plans, specifications, and calculations prior to construction, for any modification to the
approved plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
c. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
area.
e. Further subdivision, acquisition, or sale of the project area. The project area is
defined as all property owned by the permittee, for which Sedimentation and
Erosion Control Plan approval or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
4

I
State Stormwater Management Systems
Permit No. SW8 020503
10. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction. If the proposed BUA exceeds
the amount permitted under this permit, a modification to the permit must be submitted
and approved prior to construction.
11. 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.
12. Prior to the sale or lease of any portion of the property, the permittee shall notify DWQ
and provide the name, mailing address and phone number of the purchaser or leasee. An
access/maintenance casement to the stormwater facilities shall be granted in favor of the
permittee if access to the stormwater facilities will be restricted by the sale or lease of any
portion of the property.
13. The permittee must maintain compliance with the proposed built -upon area and ensure
that the runoff from all the built -upon is directed into the permitted system.
14. The Director may notify the permittee when the permitted site does not meet one or more
of the minimum requirements of the permit. Within the time frame specified in the notice,
the permittee shall submit a written time schedule to the Director for modifying the site to
meet minimum requirements. The permittee shall provide copies of revised plans and
certification in writing to the Director that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable. 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. Responsibility for compliance with all permit conditions remains with
the Permittee until such time as the Division approves the formal permit request.
2. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with
North Carolina General Statute 143-215.6A to'143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) 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 permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater
management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The filing of
a request for a permit modification, revocation and reissuance or termination does not
stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stonmwater control
must follow the guidelines established in the North Carolina Erosion and Sediment
Control Planning and Design Manual.
E

State Stormwater Management Systems
Permit No, SW8 020503
Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address changes
within 30 days.
Permit issued this the 22nd day of July, 2002.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
_ Alan W. Klimek, h.E.,-Director
✓�1 Division of Water Quality
By Authority of the Environmental Management Commission
no

I
State Stormwater Management Systems
Permit No. SW8 020503
City Block
Stormwater Permit No. SW8 020503
New Hanover County
Designer's Certification
as a duly registered
in the State of North Carolina, having been authorized to
observe (periodically/weekly/full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the best of
my abilities, due care and diligence was used in the observation of the project construction such
that the construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
7

State Stormwater Management Systems
Permit No. SW8 020503
Certification Requirements:
l . The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of
built -upon area.
3. All the built -upon area associated with the project is graded such that the runoff
drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
.5. The outlet structure is located per the approved plans.
b. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-circuiting of
the system.
_10. The permitted amounts of surface area and/or volume have been provided.
11. Required drawdown devices are correctly sized per the approved plans.
_12. All required design depths are provided.
_13. All required parts of the system are provided, such as a vegetated shelf, and a
forebay.
_14. The overall dimensions of the system, as shown on the approved plans, are
provided.
cc: NCDENR-DWQ Regional Office
New Hanover, New Hanover County Building Inspections
i

5/2102
CDC
WATERSHED -DATA
Total Area
ft. acres
51,774 1.19
CITY BLOCK
hfittration Trench A B
10-year Storm
impervious "Area
Land Use
sq. ft.
aces
17,473
l240
16,407.
0.3B
concrete
12,596
0.29
Total
46,476
1.07
INFILTRAPON SYSTEM:
Volume af7irst inch of runoff = (impervious area)1/12
V= 3,673.00 cu-ft
Volume of pipe provided= Area x Length
Vpipe6'= 51,81 cu-ft
Vpipe12"= 173.40 cu-ft
Vpipe24'= 427.00 cu-ft
Volume of trench provided= (LxWxD) - total pipe volume
Vtp= 16,028.34 cu - t
volumes pnw&(scf= (Vtp ' 0.40 +Iota! p+pe vohm ..
Vp= 7,063.55 cu-ft
DRAWDOWM TIME:
Depth ofinfdGatbn system:
D= 4 ft.
lnMra6on Rate of sorts:
R= 42 iNhr
Drawdown time:
DOT= 1.14285714 hrs.
% impervious = 0.898
89.6%
say 90.0%
CPRE = 0.25
CPOST = (% Imp.)(.95)+(1-% imp.)(.25)
0.88
110 = 7.23 inthr
125 = -6.15 inifn
01141

e'
5/2102
CDC
WATERSHED DATA
Total Drainage Area
ft, Iacres
1z,= 0:28
CITY BLOCK
Infiltration Trench C.
10-year Storm
Impervious Area
Land Use
sq. ft.
acres
Mtn
6,206
0.14
o..
(Loa
concrete
2,506
0.06
Total
8,712
020
INFILTRAT;GWSYSTEM:
Volume of first inch of rurroff = (rmpen4ous area)1/12
V= 72e.00- aFft
Vaha=of pipe pmuide = Area x Leagffi
Vpipe24"= 280.00 cu-ft
Volume of trench provided= (LxWxD) - total pipe volume
Vtp= 3,120.00 cu-ft
volume provided= (Vtp " 0.I$M + tbtaf pipe volume
Vp=' t526.OD, cuft
DRAWDOWN TIME:
Depth of inWa8on system:
D= 4 ft_
kdatratxo Rate of saris:
R= 42 irWhr
Drawdown time.
DOT= 1,14285714 hrs.
% impervious = 0.714
= 71.4%
say 72_0%
CPRE = 0.25
CPOST =, (% imp.u95)+(1-% irnp.u25)
= 0.75
110 = 7.23 in/hr
125 = 8.15 inlhr
01141

5/2102
CDC
WATERSHED DATA
Total Drai Aree
ft acres
5,702 0:13`-
CITY BLOCK
Infii1ration Trench 0
10-year Storm
Imperykws Area
Land Use-
sq., ft:
acres
6aildt
3 232
0,07
13
a.00
concrete
1,150
0.03
Total
4,382
0.10
IRF1LTFJn7OiQ SYST7E17f:'
Volume of first inch of runoff = (impervious area)1112
V= 365:t7 cu-it
Volume of pipe pmuided= Area x r ength
Vpipe24'= 188.00 cu-ft
Volume of trench provided= (LxWxD) - total pipe volume
Vtp= 2,212.00 cu-ft
vofErme provided= (Vtp ' 114Z7 f total ,pipe volume
- _� 1,07284 cu-ft
ofinfiltradon system:
D=' 4 ft.
Efate Of sails
R= 42 inlhr
i time:
DDT= 1.14285714 hrs.
% impervious = 0.769
= M.9%
say 77.0%
CPRE = 0,25
CPOST = (% imp.)(.95)+(1-% imp)(25)
0.79
110 = 7.23 in/hr
125 = 8.T5 in/hr
01141

CDC
WATERSHED DATA
Total Drainage Area
fk acres
13,905 0.32
CITY BLC=
Infiltration Trench E
10-year Storm
lm rvious Area
Land Use
sq. ft.
acres
NAdWA
it
5,390
0.12
5,469
0.13
concrete
1,421
0.03
Total
12,280
0.28
Volume of first inch of runoff = (impervious area)1112
V= 1,023.33 cu-ft
Volume of pipe provided= Area x Length
Vpipe24"= 298.00 cu-ft
Volume of trench provided= (LxMD) - total pipe volume
Vtp= 3,502.00 cu-ft
'Storage volume provided= (Vip ' 0.40) + total pipe volume
Vp- 1, 69eJX)r ccr ft-
DRAWDOWN TIME:
Depth of inhltradon system:
D= 4 ft.
laftration Rate at sails
R= 42 inlhr
Drawdown time:
DDT= 1.14285714 hrs.
% impervious = 0.883
= 88.3%
say 89.0%
CPRE = 0.25
CPOST = (% imp.)(.95)+(1-% imp.)(.25)
0.87
110 = 7.23 inihr
125 = 8.15 inihr
01141

TRIP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] • FA1Y: [phone]
LETTER OF TRANSMITTAL
To:
Attention: - c:) Zi C::-
Subject:
FAX TRANSM77AL: NUMBER OF PAGES INCLUDES COVER
I am sending you: ( ) Al i ACHED ( ) UNDER SEPARATE COVER
( ) Prints ( ) Tracings ( ) Copy of letter ( ) Specifications ( ) Other
Copies Item No. Description
These are transmitted as checked below:
( ) For Approval ( ) For Your Use ( ) Sign & Return ( ) Review
Remarks: 1 C�� ``J 1 �� ---) is
cc:
Sign ���(!

0
TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] + FAX: [phone]
May 2, 2002
NCDENR
Division Water Quality
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: City Block
New Hanover County, NC
TE 01141
Dear Linda:
FIVE
MAY 0. 3 2002
Enclosed please find two (2) sets of plans, one (1) signed original and one (1)
copy of the application form with narrative, four (4) underground infiltration trench
supplements, two (2) sets of calculations, a soils report, and one check for the
application fee.
Please review for approval and contact us with any questions, comments or if
you need additional information. Thank you.
Sincerely,
Tripp Engineering, P.C.
Charles D. Cazier, E.I.
A1000Rol
Enc.

`R .
May 2, 2002
Stormwater Narrative
City Block
New Hanover County, NC
TE 01141
City Block is a 1.92 acre commercial tract within the City of Wilmington's central
business district. The site is an old junkyard, which has been cleaned up for
redevelopment primarily as commercial with some condominium style residential units.
The 1.92 acre tract, when built out, will have 32,301 sf of buildings, 21,875 sf for a
parking deck facility and 17,673 sf of sidewalks and pedestrian access.
Runoff from proposed impervious areas will be treated by various underground infiltration
systems. Each system is designed to treat both the State's 1" requirement as well as the
City's 10-year pre -post requirement. Outflow from the proposed systems will discharge to
the Cape Fear River, classification C-SW.