SW8981209_HISTORICAL FILE_19990223

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 9 8 2_09
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
1 qq U 2 2 3
YYYYMMDD

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
February 23, 1999
Mr. William C. Maus, III, Manager
Forge Development, LLC
2524 Independence Blvd.
Wilntington,NC 28412
ri
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL Rcso rtcEs
Subject: Permit No. SW8 981209
Wilmington South Operating Center-CP&L
High Density Stormwater Project
New Hanover County
Dear Mr. Maus:
The Wilmington Regional Office received the Stormwater Management Permit Application for Wilmington South Operating
Center-CP&L on December 3, 1998, with final information on February 23, 1999. 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 21-1.1000. We are forwarding Permit No. SW8 981209 dated February 23, 1999, for the construction of
Wilmington South Operating Center-CP&L. '"-
This permit shall be effective from the date of issuance until February 23, 2009, and shall be subject to the conditions and
limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit.
Failure to establish an adequate system for operation and maintenance of the Stormwater management system will result in
future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in
the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office
of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 2761 1-7447. 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 Scott Vinson, or me at (910)
395-3900.
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/sav: S:\�\tQS\S'I'ORMWAT\PERMIT\981209.FEB
cc: Greg Hetzler, P.E.
Tony Roberts, New Hanover County Inspections
Beth Easley, New Hanover County Engineering
Scott Vinson
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 981209
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
Forge Development, LLC
Wihnington South Operating Center-CP&L
Nen, Hanover County
FOR THE
construction, operation and maintenance of a detention pond in compliance with the provisions of 15A NCAC 21-1.1000
(hereafter referred to as the "stornrtvater 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 February 23, 2009 and shall be subject to the following specified
conditions and limitations:
I. DESIGN STANDARDS
I. 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 control has been designed to handle the runoff from 3.66 acres square
feet of impervious area.
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.

Stale Stormwater Management Systems
Permit No. SW8 981 ?09
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth, feet:
Permanent Pool Elevation, FMSL:
Total Impervious Surfaces, ft':
Offsite Area entering Pond, ft':
Required Surface Area, ft2:
Provided Surface Area, ft':
Required Storage Volume, ft':
Provided Storage Volume, ft':
Temporary Storage Elevation, FMSL:
Controlling Orifice:
HVISION OF WATER QUALITY
ROJECT DESIGN DATA SHEET
Wilmington South Operating Center-CP&L
SW8 981209
New Hanover County
Mr. William C. Maus, 111, Manager
Forge Development, LLC
2524 Independence Blvd.
Wilmington,NC 28412
December 3, 1998
Barnards Creek
"C SW"
n/a
6.0
30.0
3.66 acres
N/A
8,464
11,494
13,456
14,572
31.1
1.5"$ pipe
v
3

State Stormwater Management Systems
Permit No. SW8 981209
11. SCHEDULE OF COMPLIANCE
I. 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 except roads.
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 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.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel of'HWQ.
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.
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.
8. 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.
9. 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.
10. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon
area.
IL The runoff from all built -upon area on the project must be directed into the permitted stormwater control system.
12. 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.
0

State Stormwater Management Systems
Permit No. SW8 981209
13. "file 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.
C. 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.
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
I . 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 approiate.
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. "file 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. 'file 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 23rd clay of February, 1999.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.B., Director
�-(y`1 Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 981209

State Stormwater Management Systems
Permit No SW8981209
Wilmington South Operating Center-CP&L
Storm water Penn it No. S W 8 981209
New Hanover 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,
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:
SEAL
Signature
Registration Number
Date

' OFFICL USE ONLY
Dale Re keived
Fee Paid
Permit Number
�/
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form inay he photocopied for use as an original
1. GENERAL INFORMATION:
1. Applicant's name (specify the name of the corporation, individual, etc. who owns the project):
Forge Development, LLC
2. Print Owners/Signing Official's name and title (the person who is legally responsible for the facility and
its compliance):
William C. Maus, 111, Manager
3. Mailing Address for person listed in item 2 above:
2524Independence Blvd.
City: Wilmington State: NC
Telephone Number: ( 910) 791-0400
Zip:
28412
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Wilmington South Operating Center — CP&L
5. Location of Facility (street address):
424 Raleigh Road
City: Wilmington County:
6. Directions to facility (from nearest major intersection):
New Hanover
South on US 421 0.5 miles from Shipyard Blvd. (SR 1101) to Raleigh Street; right on Raleigh
approximately 0.2 miles to the site.
7. Latitude: N 34' - I I' - 00"
Longitude: W 77' - 56' - 00"
8. Contact person who can answer questions about the facility:
Name: Steve Nearhoof
Il. PERMIT INFORMATION:
1. Specify whether project is (check one): X New
'telephone Number:
[phone]
of facility
Renewal Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list
the existing permit number and its issue date (if known)
Form: SWU-101 April 1998 Page I of

3: Specify the type of project (check one):
Low Density X High Density Redevelop General Permit
4. Additional Project Requirements (check appropriate blanks):
CAMA Major X Sedimentation/Erosion Control 404 Permit
III. PROJECT INFORMATION
I. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Wet Detention Pond
2. Stormwaler runoff from this project drains to the
3. Total Project Area:
Fear
9.98 acres 4. Project Built Upon Area:
5. I -low many drainage basins does the project have? I
Other
River basin.
36.6 %
6. Complete the following information for each drainage basin. If there are more than two drainage basins in
the project, attach an additional sheet with the information for each basin provided in the same format as
below.
Basin Information
Drainage Basin I
Drainage Basin 2
Receiving Stream Name
Unnamed trib. To Barnards Creek
Receiving Stream Class
C (SW)
Drainage Basin Area
_12.75-Ac. f
Existing Impervious* Area
0.0 Ac.
Proposed Impervious* Area
3.66 Ac.
% Impervious* Area (total)
o
Impervious* Surface Area
Drainage Basin I
Drainage Basin 2
On -site Buildings
12,166 square feet
On -site Streets
-----
On-site Parking
45,580 square feet
On -site Sidewalks
1,449 square feet
Other on -site
100,037
Off site
0 square feet
Total:
E= 159,232 square feet (3.66 Ae)
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads,
parking areas, sidewalks, gravel areas, etc.
7. I -low was the off -site impervious area listed above derived? County Topo A7 ,o r Q-w Leh* k
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to 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.
Form: SWU-101 April1998 Page 2of4

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 required covenants cannot be changed
or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot.
VI. AGENT AUTHORIZATION
If you wish to designate submittal authority to another individual or firm so that they may provide information
on your behalf, please complete this section:
Designated agent (individual or firm): McKim & Creed Engineers, P.A.
Mailing Address: 243 North Front Street
City: Wilmington
Phone: [phone]
VII. SUBMITTAL REQUIREMENTS
State: NC
Fax: [phone]
"Lip: 28401
This application package will not be accepted by the Division of Water Quality unless all of the applicable
items are included with the submittal.
I. Please indicate that you have provided the following required information by signing your initials in the
space provided next to each item.
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each LIMP (see Attachment A)
• Permit application processing fee (see Attachment A)
• Detailed narrative description of stormwater treatment/management:
• Two copies of plans and specifications including:
- Development/Project name
- Engineer and firm
- Legend
- North arrow
- Scale
- Revision number & date
- Mean high water line
- Dimensioned property/project boundary
- Location map with named streets or NCSR numbers
- Original contours, proposed contours, spot elevations, finished floor elevations
- Details of roads, parking, cul-de-sacs, sidewalks, and curb and gutter
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage basins delineated
- Vegetated buffers (where required)
Vill. APPLICANT'S CERTIFICATION
1, (print or type name ofperson listed in General information, item 2) William C. Maus, I❑
certify that the information included on this permit application form is correct, that the project will be
constructed in conformance with the approved plans, that the deed restrictions in accordance with Attachment A
of this form will be recorded with all required permit conditions, and that to the best of my knowledge the
proposed project
Signature:
of 15A NCAC 211.1000.
Title: A
Form: SWU-101

ATTACHMENT A
1. Deed Restriction Requirements
The following statements must be recorded for all low density projects and for all projects that involve the
subdivision and selling of lots or outparcels:
No more than square feet of any lot, including that portion of the right-of-way between the
edge of pavement and the front lot line, shall be covered by impervious structures, including
asphalt, gravel, concrete, brick, stone, slate or similar material but not including wood decking or
the surface of swimming pools. This covenant is intended to insure continued compliance with the
stormwater permit issued by the State of North Carolina. The covenant may not be changed or
deleted without the consent of the State.
2. No one may fill in, pipe, or alter any roadside swale except cis necessary to provide a minimum
driveway crossing.
NOTE: If lot sizes vary significantly, the owner/developer must provide an attachment listing each lot
number, size, and the allowable built -upon area for each lot.
For commercial projects that have outparcels or future development the following statements must also be
recorded.
3. The connection from the outparcel or future area into the stormwater system must be made into the
forebay such that short -circulating of the system does not occur.
4. All built -upon area from the outparcel or future development must be directed into the permitted
stormwater control system.
Built -upon area in excess of the permitted amount will require a permit modification prior to
construction.
For curb outlet systems, the following statement in addition to items I and 2 above must be recorded:
6. No one may pipe, fill on or alter any designated 100 foot long grassed swale used to meet the
requirements of NCAC 2H.1008(g).
2. Supplement Forms
The applicable supplement form(s) listed below must be submitted for each BMP specified for this project:
Form SWU-102
Wet Detention Basin Supplement
Form SWU-103
Infiltration Basin Supplement
Form SWU-104
Low Density Supplement
Form SWU-105
Curb Outlet System Supplement
Form SWU-106
Oft -Site System Supplement
Form SWU-107
Underground Infiltration Trench Supplement
Form SWU-108
Neuse River basin Nutrient Management Strategy Supplement
3. Permit Application Fees (check made payable to NCDENR and submitted to the appropriate Regional
Office)
Type of Permit
Low Density
High Density
Other
Director's Certification
General Permit
New, Modification, or
Late Renewal
$225
$385
$225
$350
$50
Timely Renewal Without
Modification
n/a
$225
n/a
n/a
n/a
Form: SWU-101 April1998 Page 4of4

v
February 15, 199*�MCKIM&CREED
ST"WAIER
Ms. Linda Lewis
Environmental Engineer
NC Department of Environment and Natural
Division of Water Quality
127 Cardinal Dr. Ext.
Wilmington, NC 28405
Resources
FEB 1 6 1999
BY:
RE: Additional Information Response to February 5, 1999 Request
Stormwater Permit No. SW8 91209
CP & L South Operations Center
Dear Linda:
Please find enclosed for your review and approval a re -submittal of additional information for the
referenced project in accordance with you letter of request, dated February 5, 1999, which was
received at our office on February 12, 1999, and included your return of the original signed
application forms.
This submittal includes the following items:
• Original signed application forms
• Revised Stormwater Management Permit Application Form
• Revised Wet Detention Basin Supplement
• Stormwater Design Narrative, dated November 25, 1998 (no changes)
• Revised Design Calculations, revised February 15, 1999 Pages 1 through 6
• Revised Engineering Plans
• Site Plan - Sheet C101, Dated Oct 22 1998, revised 2/15/99, (1"=60')
• Sedimentation and Erosion Control Plan - Sheet C102, Dated Dec 15 1998, revised
2/15/99, (1"=60')
Grading and Drainage Sheet 1 - Sheet C103, Dated Nov 21 1998, revised 2/15/99,
(1 "=30')
Grading and Drainage Sheet 2 - Sheet C104, Dated Nov 21 1998, revised 2/15/99,
(1 "=30')
Pond Details and Miscellaneous Details - Sheet C105, Dated Nov 25 1998, revised
2/15/99, (1"=30')
The revisions are relatively minor and they are provided with an overview summary of the
revisions below and with the calculations.
The original submittal to you included two engineering plans as follows. Site Plan - Sheet C101,
Dated Oct 22 1998, revised 11/25/98, (1"=60') and Pond Details - Sheet C104, Dated Nov 25
1998, revised 11/25/98. Please note that the information on that submittal is contained in the
newer set of Site Plans. The improvements previously shown on the 60' scale Sheet C101 are
now detailed on the new 60 scale site plans and on the enlarged 30' scale site plans. The Pond
Details are unchanged and shown on sheet C105. The revisions to plans have been made as
the construction documents have been prepared. The content of the proposed plans has not
constituted a redesign of the project. a
S10159=81=15%gh_IV to NCDENR re0 dtl
243 N. FRONT ST., WILMINGTON, NORTH CAROLINA 28401
TEL [phone] FAX [phone] www.mckimcreed.com

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February 15, 1999
Page 2
The revisions to the plans that pertain to the stormwater permit application submittal are
addressed below. Clarifications to grades and elevations are included in this set. The plans do
include a slight modification to the pond to better accommodate grading for the swales. The
calculations have been revised to reflect the pond volumes.
The responses to your inquires are as follows. The descriptions are made in the order you
presented them.
1. The draw down equation has been revised to reflect the an Average Head of H/2 in lieu
of the Center of Pressure, H/3. The resulting revision yielded flow equal to previous of
0.0339 cfs. The draw down time is now 4.60 days in lieu of 4.67 days
2. Presently, the application does not need to be revised to reflects off -site
drainage. Since that time of our original application submittal, the adjacent property has
been developed. It is apparent that the landowner of the property has provided for
proper management of the stormwater flows. The adjacent property has a stormwater
management system constructed on the property. The flows are collected into a pond
and then directed to the existing drainage easement below their property. The flows are
diverted across the higher side of the CP&L property along the existing drainage
easement, and continue to the south corner of the CP&L site where they leave the
property. Their flows do not enter onto the developed portion of the site, nor enter the
pond. Adverse impact to our stormwater management system is not apparent.
The result to our application is that the drainage area of the site has been revised along
the shared property line, resulting in a reduction of drainage area to 8.43 acres. The
application has been reviewed as requested and no changes are required to address
upstream impervious surfaces. The pond design was not affected by the decrease in off -
site area. The required temporary storage volume determination was relatively
unchanged as the percent impervious of the drainage area went up as the area went
down, resulting in negligible change.
I respectfully do not concur in any event that you were indicating the CP & L developer
would have had full responsibility to treat the runoff from this upstream development in
this industrial park, especially even at an arbitrary impervious rate of 90%. In addition,
please note that the CP&L site is a permitted use in the industrial park and the
substantial construction of the building, parking areas, and Laydown yards is
approximately only 36.6%, not the 90% that you suggest.
Your request to revise our submittal to treat future unknown, undefined, impervious
areas is not considered applicable to this application. As stated in the regulations,
section 1007.1.1b.ii, "control systems must be designed to control runoff from all surfaces
generated by one inch of rainfall'. The definitions go onto to define Built -Upon Area as
".. project that is covered by impervious..". On page 2 of 4 of the application footnotes a
definition of impervious area is ".. area defined as the built upon area.." . In the DENR
Best Management Practices Guidelines dated 11/98, Chpt 1 Setion 11,1.c states "..
Impervious levels used for sizing sizing should be those that are expected in the final
build -out of the development, and any off -site runoff that drains to the pond." Our
previous design included treatment of the impervious surfaces on the site and the off -site
runoff onto our site and, in my opinion, was in compliance with the regulations. The
S',W15�81 021599ph_Ilr to NCOENR rev3 doc NO* MCIM & CREED

February 15, 1999
Page 3
regulations do not require that a development such as this one is required to provide
treatment for some future, unknown, undefined sources.
In addition, there is the Attachment A form which has suggested Deed Restriction
Requirements. This form is intended to be used on Low Density developments which
involve the subdivision or selling of lots or outparcels. This form has statements that are
to be included in deeds which include the requirement that future drainage must be
directed to the permitted stormwater system. This project is not intending to subdivide or
developing outparcels. Therefore this does not enter into our review either.
3. The dimensions of the Laydown yard have been provided on the Site Plan, Sheet C101,
and just to check, the dimensions are the same as those presented in the design
calculations, 205 ft. by 484 ft. The forebay dimensions have been added on the Grading
and Drainage Sheet 2, Sheet C104.
Based on your clarification, the values of the defined permanent pool elevations, and the
volume of the forebay above the permanent pool, have been revisited. Surface area
adjusted from 8,390 sf. To 8446 sf. Required with 12,388 sf. Provided. The volume of
the forebay is 20.5 % of the total pond, as required. This value has been revised on the
supplement form.
4. The revised plans C101,C102, C103 and C104 have dashed contours as requested.
5. The Gravel Storage Area completely covers the Laydown Yard. There are plan notes
indicating the general limits. (see note 3 with regard to dimensioned area).
6. The 30 scale plans, C103 and C104, have spot dimensions for grading. General
contours are also shown on C102.
7. Per request, the Vicinity Map includes labels for Sunnyvale road and Raleigh Street.
Please see Sheets C101 and C102.
8. Catchbasin and piping elevations are shown on Sheets C103 and C104.
9. Lot 23A-R does not drain onto the site. A drainage ditch on their property and in
the drainage easement conveys their runoff around the site. The drainage area
boundary accurately reflects this drainage divide. See Sheet C101, C102, and C103.
10. The actual area to base the pond design on is 8.43 acres, not 12.78 acres.
(Please see response to item 2.) No changes are needed of the plans except to show
the drainage area smaller as described above in item 2. The pond calculations have
been revisited. Calculation values have been revised. Plan revisions were not
necessary based on the new calculation values. The issue of whether off -site
impervious surfaces need to be addressed is not of concern with the new drainage area
11. No changes to the plans are required for this item. The Supplement does list the
Permanent Pool elevation as 30 ft. and the plans (C105) show Permanent Pool
elevation of 30.0 ft. The Temporary Pool elevation on the Supplement was shown
as 31.1 ft. as the elevation of Top of Riser was requested. The actual Temporary pool
elevation is 30.90 ft. as calculated. The Plan C105 shows a top of riser at 31.1 ft. which
S'.W159100811021599gh_Ilr to NCOENR rov3 doe � McM4& CZEEED

February 15, 1999
Page 4
is also correct as we are considering drainage control also. The temporary pool
elevation is lower than the top of riser and the calculations show that the actual required
temporary storage volume of 13,483 cf. is, by itself, drawn down in the required 2 to 5
day period from 30.90 to 30.0 ft. elevation.
12. No changes to the plans are required for this item. The pond was previously
designed to accommodate the designated drainage from off -site (see item 2). The
abutter has subsequently developed their site and have addressed drainage
considerations.
/gjh
Enclosures: Resubmittal
Mailing Notation: Hand Delivered
cc: Steve Nearhoof, R.A., M&C
William Maus
Dan Latta, P.E., M&C
Sincerely,
Mc /2k CREEt
Gregory . Het'I
Project Manager
"-I
SEAL'
022887
.,,,' Rli J
$I\0159\0091\021599gh_Itr to NCDENR reO doe
v �MCIQMCREED

McKim & Creed
Fax:[phone] Nov 25 '98 12:16 P.02
STORMWATER DESIGN NARRATIVE
AND SUPPORTING CALCULATIONS
WILMINGTON SOUTH OPERATIONS CENTER
CAROLINA POWER & LIGHT
Wilmington, New Hanover County, North Carolina
prepared for:
Forge Development, LLC
2524Independence Boulevard
Wilmington, North Carolina 28412
910/791-0400
November, 1998
j�ECEil/E�
IluunnUUff FEB 161999
Dft
PAW 6
Prepared by
McKim & Creed Engineers, P.A.
243 North Front Street
Wilmington, North Carolina 28401
910/343-1048
4N1 ` %' 98
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McKim & Creed
Fax:[phone] Nov 25 '98 12:16 P.03
Design Narrative
General
The project site is 9.98 acres, located on Raleigh Street, in southwest Wilmington,
North Carolina. The project site is located approximately 1,000 feet west of US
Highway 421, approximately 19 mile south of the intersection of Highway 421
(Carolina Beach Road), and SR 1101 (Shipyard Boulevard). Drainage considerations
are to be in accordance with DENR Stormwater Requirements. The purpose of this
project is to construct an office and storage facility for Carolina Power and Light
Company operations.
Existing Site
Site topography in the area is relatively flat, sloping from north to south
approximately 15 feet in 400 feet, or approximately 4%. Vegetation on the site
consists primarily of grasses and minor ground cover, with scrub pines and a few
larger pines and hardwoods, primarily oaks. Subsurface soils are primarily sands.
The soil survey of New Hanover County classifies soils on the project site as Lynn
Haven, Bay Meade Fine Sands, and Leon Sands. All soils are well drained, and of
hydrologic soil groups A or B.
3. Proposed Improvemcnts
Improvements proposed for the site include construction of a building
approximately 12,170 square feet, parking and driveways totaling approximately
45,600 square feet, and a large gravel storage area and lay -down yard for material
storage of approximately 2.28 acres. The total impervious area proposed for the site
is approximately 159,230 square feet, or 3.66 acres. The percent impervious cover
on the site is approximately 36.6% of the 9.98 acres.
4. Stormwater Treatment Considerations
All Stormwater collected on the site through catch basins or yard inlets will be
conveyed to a wet detention pond located in the southeast corner of the project site.
The wet detention pond will provide enhanced treatment of the stormwater, and
will comply with all parameters of stormwater treatment, as documented in the
following calculations.

SUMMARY OF REVISIONS TO 2/15/99 CALCULATIONS
CP & L South Operations Center
Stormwater Permit No. SW8 91209
Page 1
=> Site area, Impervious area and Percent Impervious remain the same at 9.98 acres, 3.66
acres, and 36.6% respectively.
Page 2
=:> Pond drainage area reduced to 8.43 acres
=> % impervious adjusted from 36.6 to 43.4 %
SA/DA ratio adjusted from 1.93 to 2.3
SA required adjusted from 8,390 sf to 8,446 sf
=> pond 3 to 1 ratio is met
Page 3
=> TSS chart
Page 4
Stage Storage rating table
=:> Revised grading for swale grading and adjusted pond volumes
=> Overall storage adjusted from 40,233 to 44,765 cf.
Forebay volume to pond ratio is 20.5%
Page 5
=> 1" rainfall volume revised from 13,745 cf. To 13,483 cf.
=> Temporary storage depth revised to 0.90 ft. instead of 0.92 sf.
Page 6
=> The drawdown orifice remains at a size of 1.5 inches.
=> The drawdown of the 1 inch rainfall now occurs in 4.60 days instead of 4.67 days.
RE C E 'I V ED
FEB 16 1999
pme
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McKim 3 Creed Fax:[phone] Nov 25 '98 12:17 P.04
CALCULATION
PROJECT 1LH S-.-rN O� Gam„ � PROD. NO. 6-LM--,00ai
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CALCULATION
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85% TSS REMOVAL
30 FOOT VEGETATED FILTER REQUIRED 516
DEPTH
3'
3.5'
4.0'
4.5'
5.0'
5.5'
6.0'
6.5'
7.0'
7,5'
IMP %
10%
.9
.8
.7 1
.6
.5. 1
0
0
0 1
0
0
20 %
1.7
1.3
1.2
1.1
1.0
.9
.8
.7
.6
.5
30 %
2.5
2.2
1.9
1.8
1.6
1.5
1.3
1.2
1.0
.9
40 %
3.4
3.0
.2.6
2.4
2.1
1.9
1.6
1.4
1.1
1.0
50 %
4.2
3.7
3.3'
3.0
2.7
2.4
2.1
1.8
1.5
1.3
60 %
5.0
4.5
3.8
3.5
3.2
2.9
2.6
2.3
2.0
1.6
70 %
6.0
5.2
4.5
4.1
3.7
3.1
2.9
2.5
2.1
..1.8
80 %
6.8
6.0
5.2
4.7
4.2
3.7
3.2
2.7
2.2
:2.
90 %
7.5
6.5
5.8
5.3
4.8
4.3
3.8
3.3
2.8
1.3
100 %
8.2
7.4
6.8
6.2
5.6
5.0
4,4
3.8
3.2
2.6
.9.Oa°i T- SS REMOVAL
NO VEGETATED FILTER REQUIRED
3.5'
4.0'
4.5'
5.0'
5.5'
6.0'
6.5'
7.0'
7.5'
DEPTH
3'
RVfP %
10 %
1.3
1.0
.8
.7
.6
.5
.4
.3
.2
.1
20 %
2.4
2.0
1.8
1.7
.1.5
1.4
1.2
1.0
.9
.6
30 %
3.5
3.0
2.7
2.5
2.2 .'
1.9
1.6
1.3
1.1
.8
40 %
4.5
4.0
3.5
3.1
2.8
2.5
2.1
1.8
1.4
1.1
50%
5.6
5.0
4.3
3.9
3.5
3.1
2.7
2.3
1.9
1.5.
60 %
7.0
6.0
5.3
4.8
4.3
3.9
3.4
2.9
2.4
1.9
70 %
8.1
7.0
6.0
5.5
5.0
4.5
3.9
3.4
2.9
2.3
80 %
9.4
8.0
7.0
6.4
5.7
5.2
4.6
4.0
3.4
2.8
90 %
10.7
9.0
7.9
7.2
6.5
5.9
5.2
4.6
3.9 '
3.3
100
12.0
10.0
8.8
8.1
7.3
6.6
5.8
5.1
4.3
3.6
Note: The required ,surface area calculated from the tables is to be provided at the permanent pool elevation.

McKim 3 Creed Fax:[phone] Nov 25 '98 12:20 P.07
CALCULATION
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Nov 25 '98 12:21 P.09
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IL

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
February 5, 1999
Mr. Dan Latta, P.E.
McKim and Creed
243 N. Front Street
Wilmington, NC 28401
M4cm?)VA 0
�HL
NCDENR
NORTH CAROUNA DEPARTMENT OF
ENVIRONMENT AND NATURAL RE50URc E5
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 981209
CP & L South Operations Center
New Hanover County
Dear Mr. Latta:
The Wilmington Regional Office received a Stormwater Management Permit Application for CP &
L South Operations Center on December 3, 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 orifice size must be based on the volume provided in the pond, not the minimum. Please
revise the calculation to check the 1.5" specified. Why do you use H/3 as an average head for
the orifice sizing? H/2 is the average head; H/3 is 1/3 of the head, not the average head.
2. The application lists the built -upon area for the offsite area as zero. All offsite areas must
either be taken into account at the full build -out potential or routed around the pond. In this
case, being an industrial park in the City, the full build -out potential would likely be near
90%. Please revise your application appropriately.
3. Please add the dimensions for the forebay and laydown gravel storage area. The area of the
forebay at the permament pool elevation counts toward the minimum required area, and the
volume in the forebay above the permanent pool also counts toward the minimum required
volume.
4. It is very difficult to distinguish the existing contours from the proposed cotours. Please use
a different line type for the existing contours, such as the industry standard light dashed lines.
Varying line weight helps immensely in distinguishing the plan items.
5. Please indicate on the plans the extent of the gravel storage area. Is the fence line the end of
the gravel?
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone [phone] FAX [phone]
An Egmd opportunity Affirmative Action Employer 50 % recycled/10% post -consumer paper

Mr. Latta
February 5, 1999
Stormwater Project No. SW8 981209
6. Please provide spot elevations for those areas such as parking lot corners and road edges, to
verify grading. .
7. Please label Raleigh Street and Sunnyvale Road on the vicinity map.
8. Please label inverts and tops for catch basins and piping.
9. Please verify the runoff from Lot 23A-R. It appears that runoff from this offsite area is
entering the pond.
10. Please base the pond sizing calculations on the 12.78 acre drainage area which includes the
offsite area, as required by the regulations. The percent impervious is based on the total
impervious surfaces in the drainage area, including the offsite impervious area.
11. The supplement indicates that the storage elevation is 30, but the outlet structure details show
a top elevation as 31.1.. Also, the supplement indicates that the drainage area is 9.98 acres,
but the applications shows it as 12.78 acres. Please clarify and revise as needed
12. If you do not reroute the offsite runoff, the pond as designed is not large enough to meet the
design criteria.
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 5, 1999, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee. The Division is allowed 90 days from the receipt of a completed application to issue the
permit.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
y,/�
4
Ms. Linda Lewis
Enviromnental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\981209.FEB
cc: Linda Lewis
William Maus
Central Files

v*McIQM&CREED
TO: NCDENR
127 Cardinal Drive Extension
Wilmington, NC 27405
ATTENTION: Linda Lewis
WE ARE SENDING: ❑ Originals
❑ Specifications
LETTER OF TRANSMITTAL
GATE: December 2, 1998
PROJECT NO: 01590081
TASK NO:
RE: CP&L
TRANSMITTAL NO: 2
PAGE 1 OF 1
❑ Prints
❑ Calculations
❑ Shop Drawings ❑ Samples
® Other - Drainage Application
Quantity
Drawing No.
Rev.
Description
Status
3
New Stormwater Management Permit Application Form
3
New Wet Detention Basin Supplement
3
Drainage Narrative and Supporting Calculations
3
Site Plans and Details
1
$385.00 Application Fee
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review & Comments G. For Approval H. See Remarks
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected - See Remarks
REMARKS:
DEC 0 21998
TH FRONT STREET, WILMINGTON,NC28401 [phone] FAX [phone]
cc: CCC McKI &A ED ENGINEERS, PA
Signed
A.
p -senior uesigner
Documentl

a
State of North Carolina
Sob'
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
November 26, 1996
Ms. Margaret Gray, Site Development Director
Landmark Development
Post Office Box 4127
Wilmington, North Carolina 28406
Subject: Exemption
from Coastal Stormwater Permit Requirements
Brunswick Land Tract
Brunswick County
Dear Ms. Gray:
The Wilmington Regional Office received a copy of the Notice of Receipt of a revised Erosion and
Sedimentation Control Plan for Brunswick Land Tract on November 8, 1996. Subsequent correspondence
from you dated November 15, 1996 indicates that the proposed activity will be timber operations, which is
exempt from permit requirements under NCAC 2H.1000. Please be aware that if at any point in time this
activity ceases to be a timber operation, a coastal stormwater management permit will be required.
If you have any questions concerning this matter, please do not hesitate to call either me or Linda
Lewis at [phone]. 1 -------
KE/arl
cc:
Ken Eagleson
Regional Water Quality Supervisor
S:\WQS\STORMWAT\EXIAlPT\BRUNLAND-NOV
Phil Tripp, P.E.
Delaney Aycock, Brunswick County Building Inspections
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Landmark Developers, Inc.
Nov. 15, 1996
Linda Lewis
NCDEI-INR
Water Quality Division
127 Cardinal Dr. Ext.
Wilmington, NC 28405-3845
Re: Certified Mail P-455546724
Request for Stormwater
Permit Application
Dear Linda:
I am providing this correspondence in response to the above.
The Brunswick land tract on which you received a Sedimentation Erosion Control Plan was
purchased from International Paper Company.
We are presently conducting drainage improvements to assess potential timber production. No
construction is proposed at this time. No Preliminary Plans have been developed and/or
approved.
Due to the proximity of two creeks we opted to obtain an Erosion Control Permit rather than
relying on "best management practices." The schedule on silviculture production has yet to be
determined.
Sincerely,
Site Development Director
5022 Wrightsville Ave. • P.O. Box 4127 • Wilmington, N.C. 28406 • [phone] • Telecopier [phone]

UNITED STATES POSTAL SERVICE.E'rsf-Glass'Mai—I�—
L.P_GStage_&.Fees Paid- -
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> .Permit-No_G-10-_
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=TTELLE 1-4 2831 #1 1 1: I--
0 Print your name, address,`and ZIP Code -in -this box - - - -
-%-ArU AL RESOURCE.',
127 CARDINAL DP.IVE EXTENSION
WiLMIN'TON,NC 28405938q

:eC•Y V CfH
-Complete items 1 ardor 2 for etltlidonel services.
18150 Wish t0 feCCIVe the
-Complete items 3, 4a, and 4b.
following services (for an
• Print your name and address on the reverse of this form so that we can return this
extra fee):
card to you.
• Attach this form to the front of the mailpiece, or on the back if space does not
1. ❑ Addressee's Address
peril.
• Write 'Return Receipt Requested'on the mailpiece below the article number.
p. ❑ Restricted Delivery
•The Return Receipt will show to whom the article was delivered and the date
delivered.
Consult postmaster for fee.
pc) Fb4 412i
UJIIMiti� 01/ K)L Z8405
g 6. slgna
r X
PS Form
1994
—72,
❑Registered ® Certified c
c
❑ Express Mail Insured .5
d
•
❑ Return Receipt for Merchandise ❑ COD -
7. Date of Delivery
B. Addressee's Address (Only if requested
and fee is paid) i
r
Domestic Return Receipt

0
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
November 13, 1996
' Y I' ► t 1� 1 1 Y I
Ms. Margaret Gray, Site Development Director
Landmark Developers, Inc.
Post Office Box 4127
Wilmington, North Carolina 28406
Subject: REQUEST FOR STORMWATER MANAGEMENT
PERMIT APPLICATION
Brunswick Land Tract
Brunswick County
Dear Ms. Gray:
, On November 13, 1996, the Wilmington Regional Office received a copy of the Sedimentation Erosion Control
Plan Permit Application for Brunswick Land Tract. The North Carolina Administrative Code requires any project that
must receive either a Sedimentation and Erosion Control Plan permit and/or a CAMA major permit to apply for and
receive a Stormwater Management Permit by the Division of Environmental Management. Any construction on the subject
site, prior to receipt of the required permit, will constitute a violation of 15A NCAC 2H.1000 and may result in
appropriate enforcement action by this Office.
Either a Stormwater Permit Application Package including 2 sets of plans, completed application form, fee, and
supporting documentation, or a written response regarding the status of this project and the expected submittal date must
be received in this Office no later than December 13, 1996, or the subject project file will be closed and construction may
experience a subsequent delay. If you have any questions, please call me at (910)-395-3900.
Sincerely,
��
Linda Lewis
Environmental Engineer
KE/arl: S:\WQS\STORMWAT\STORMSUB\BRUNLAND.NOV
cc: Delaney Aycock, Brunswick County Inspections
Linda Lewis
127 Cardinal Drive Extension. Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal opportunity Affirmative Action Employer

-•P 455 546 724
I /`J
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US Postal Service
Receipt for Certified Mail
No Insurance Coverage Provided.
Do not use for Intemational Mall See reverse
Se tt
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street "°`< l27
Post OH'ce, State,8 IPCNC
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Postage
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Date, & Oddeseestest
TOTAL Postage & Fees
$
Postmark or Date

State of North Carolina
Department of Environment,
Health and Natural Resources
Wilmington Regional Office
Division of Land Resources
Land Quality Section
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A&4
IDFEE HNR
November 8, 1996
NOTICE OF RECEIPT OF REVISED EROSION & SEDIMENTATION CONTROL PLAN
Landmark Developers, Inc.
Mr. Chris Stephens, Vice President
Post Office Box 4127
Wilmington, North Carolina 28406
Dear Mr. Stephens:
This office has received a revised soil erosion and sediment control plan for the project listed
below. NCGS 1 13A-54(d)(4) requires that this office approve or disapprove a submitted revised plan
within 15 days of receipt of such plan. Failure to act by this office within this time period shall be
deemed approval of the revised plan.
Commencement or continuation of a land -disturbing activity under the jurisdiction of the North
Carolina Sedimentation Pollution Control Act (NCGS 1 13A-50) prior to the approval of an erosion and
sediment control plan is a violation of the Act.
If you have questions, please contact this office at 395-3900.
Sincerely,
Carol N. Miller
Environmental Technician
CNM/dbd
cc: Ms. Margaret Gray, ASLA; Landmark Organization
WiRO-LQS
PROJECT NAME: Brunswick County Tract
PROJECT NO.: 961005BR
LOCATION: US 17 - Brunswick County
RIVER BASIN:Cape Fear
SUBMITTED BY: Tripp Engineering
DATE RECEIVED BY LQS: November 7, 1996
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,
Health and Natural Resources
Wilmington Regional Office
Division of Land Resources
Land Quality Section
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
CERTIFIED MAIL P 257 980 421
RETURN RECEIPT REQUESTED
Landmark Developers, Inc.
Mr. Chris Stephens, Vice President
Post Office Box 4127
Wilmington, North Carolina 28406
AFWAA
'T
C)FEE HNIL
R
October 30, 1996
LETTER OF DISAPPROVAL
PROJECT NAME: Brunswick County Tract
PROJECT NO.: 961005SR
LOCATION: US 17 - Brunswick County
RIVER BASIN:Cape Fear
SUBMITTED BY: Landmark Organization, Inc.
DATE RECEIVED: October 7, 1996
Dear Mr. Stephens: New Submittal
The sedimentation and erosion control plan submitted for the subject project has been
reviewed by this office. Based upon a thorough review of the submitted plans and supporting
materials, we find the sedimentation and erosion control plan as submitted to be unacceptable and
said plan is hereby disapproved by the authority granted to this office by North Carolina General
Statute (hereinafter abbreviated NCGS) 113A-54(d) and Title 15A, North Carolina Administrative
Code, 4A .004(a). The reasons for disapproval of the submitted plan and any recommendations are
listed and explained on the enclosed form which is incorporated as a part of this letter of disapproval.
There are two options which are available to you as a result of this disapproval. You may
submit a revised sedimentation and erosion control plan for approval covering those items as outlined
on the enclosed form. Under the authority of NCGS 113A-54(d)(4), this office has 15 days from the
date of receipt to approve or disapprove your revised plan. The second option is to appeal the
disapproval of your plan directly to the North Carolina Sedimentation Control Commission. Any
appeal must be made in writing within 15 days of your receipt of this letter of disapproval and should
be addressed to the Chairman, North Carolina Sedimentation Control Commission, Post Office Box
27687, Raleigh, North Carolina 27611.
Please feel free to contact this office at your convenience if you have any questions or we can
provide any assistance in resolving this matter.
Sincerely,
Daniel Sams, v
DS/dbd Regional Engineer
cc: Ms. Margaret Gray, ASLA; Landmark Organization
WiRO-LQS
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

FINANCIAL RESPONS13iUTY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more contiguous acres as covered by the Act
before this form and an acceptable erosion and sedimentation control plan have been completed and approved
by the Land Ouality Section, N.C. Department of Environment. Health, and Natural Resources. (Please type or
print and, if question is not applicable, place N/A in the blank.)
Rert A.
1. Project Name Brunswick Land Tract
2. Location of land -disturbing activity: County Brunswick
City
or Township Leland and Highway / Street Hwy 17
Npraniiate date land-oistairbing aCtiviiy wiii be commenced: Oct. 23, • 1996
4. Purpose of development (residential, commercial, industrial, etc.) : Drainage improvements
S. Total acreage disturbed or unooyered (including off -site borrow and waste areas)
6. Amount of lee enclosed S 478,00. .
7. Has an erosion and sedimentation control plan been filed ? Yes x
No
8. Person to contact should sediment control issues arise during land -disturbing activity.
Name Margaret Cray 392-7201
Telephone
9. Landowner (s) of Record ( Use blank page to list additional owners.):
Landmark Deyelopers jnc,.
Name (sl
.P.O. Box 4127
Current Mailing Address
Wilmington, NC 28406
Current Street Address
CRY State Zip City . State
10..Recorded in Deed Book No. 968 198� Part B. Page No.
1. Person (s) orfirms (s) who are financially responsible forthis land -disturbing activity
additional persons or firms):
Landmark Developers, Inc,
Name of Person2( )or Finn (s)
P.0, Box 41 �/
Mailing Address
Wilmington. NC 28406
clty
392-ft
Telephone
Street Address
Zip , City
Telephone
23.4
Zip
It
blank pa a to list
Ul; I 1 199b
State Zip

REASONS FOR DISAPPROVAL
PROJECT NAME: Brunswick County Tract
PROJECT NO.: 961005BR
LOCATION: US 17 - Brunswick County
RIVER BASIN:Cape Fear
DATE RECEIVED: Landmark Organization, Inc.
SUBMITTED BY:October 7, 1996
PERSON FINANCIALLY RESPONSIBLE: Landmark Developers, Inc.
1. The plan does not indicate the depth or side slopes of the proposed ditches. Side slopes will
not be accepted if proposed steeper than 2 horizontal to 1 vertical, unless adequate soil
information is provided that will indicate that a steeper slope can be successfully stabilized
with vegetation, and ditch velocity calculations that prove erosion will not occur during the
bare earth exposure within the bottom of the ditch.
2. The "V" shape ditch appears to be ill conceived considering the ditch lengths and the proposal
to use them as sediment storage. A trapezoidal shape is probably necessary; however, if you
can provide ditch velocity calculations that support your proposal, we will accept them.
Otherwise, we request that you reconsider the shape of the ditch.
3. • The sediment storage proposal uses unacceptable assumptions. To divide sediment storage
in half and assume a six month storage capacity assumes uniform rainfalls throughout the
year. The past six month rainfalls have demonstrated that is obviously not the case. Sediment
storage must be based on a minimum volume of 1800 cubic feet per acre and include a
drainage area not to exceed 5 acres (see the "Erosion and Sediment Control Planning and
Design Manual" Section 6.60). Redesign your sediment storage areas accordingly.
4. Your grassing rates, both temporary and permanent , are inadequate to ensure establishment
of vegetative cover. Again, review the "Planning and Design Manual" and reconsider your
seed application rates. We suggest that you consider a seeding mixture using a variety of
grasses for your permanent vegetative cover.
5. The plan must clearly delineate your proposed limits of grading.