SW8041124_HISTORICAL FILE_20050309

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW ai
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
.2/,�,���?
YYYYMM D D

State Stormwater Management Systems
Permit No. SW8 041124
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
James P. Bonner & BSB Properties, LLC
Brock & Scott Office Building
5431 Oleander Drive, Wilmington, New Hanover County
FOR THE
construction, operation and maintenance of an infiltration basin in compliance with the
provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rulesl 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 March 9, 2015, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in Section 1.6 on page 3 of this permit. The stormwater
control has been designed to handle the runoff from 39,231 square feet of
impervious area. This basin must be operated with a 30' vegetated filter.
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.
Page 2 of 7

f I
State Stormwater Management Systems
Permit No. SW8 041124
Lei
The following design criteria have been provided in the infiltration basin and must
be maintained at design condition:
a.
Drainage Area, acres:
1.38
Onsite, ft2:
60,300
Offsite, ft2:
0
b.
Total Impervious Surfaces, ft2:
39,231
G.
Design Storm, inches:
1
d.
Basin Depth, feet:
3.3
e.
Bottom Elevation, FMSL:
19.7
f.
Bottom Surface Area, ft2:
508
g.
Bypass Weir Elevation, FMSL:
23.0
h.
Permitted Storage Volume, ft3:
3,672
i.
Type of Soil:
Sand
j.
Expected Infiltration Rate, inlhr:
36
k.
Seasonal High Water Table, FMSL:
17.7
I.
Time to Draw Down, hours:
<1 day
M.
Receiving Stream/River Basin:
Bradley Creek 1 Cape Fear
n.
Stream Index Number:
CPF24 18-87-24-4-2
o.
Classification of Water Body:
"SC #"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in its entirety,
vegetated and operational for its intended use prior to the construction of any
built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
3. The permittee shall at all times provide the operation and maintenance
necessary to assure the permitted stormwater system functions at optimum
efficiency. The approved Operation and Maintenance Plan must be followed in
its entirety and maintenance must occur at the scheduled intervals including, but
not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of bypass structure, infiltration media, flow
spreader, catch basins, piping and vegetated filter.
g. A clear access path to the bypass structure must be available at all times.
Page 3 of 7

State Stormwater Management Systems
Permit No. SW8 041124
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. 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.
6. 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.
7. 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.
8. Access to the stormwater facilities shall be maintained via appropriate
easements at all times.
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, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit final site layout and grading plans for any permitted
future areas shown on the approved plans, 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. 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.
Page 4 of 7

State Stormwater Management Systems
Permit No, SW8 041124
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a formal permit transfer request to the Division of Water Quality,
accompanied by a completed name/ownership change form, 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. The permittee is responsible for compliance with all permit
conditions until such time as the Division approves the transfer request.
2. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
3. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
5. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting all components of the permitted
stormwater management facility.
6. The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and reissuance or
termination does not stay any permit condition.
7. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
8. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
9. The permittee shall notify the Division any name, ownership or mailing address
changes within 30 days.
Permit issued this the 9th day of March 2005.
N05TH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 5 of 7

NORRIS, KUSKE &TUNSTALL
CONSULTING ENGINEERS, INC.
February 16, 2005
Ms. Linda Lewis
NC DENR
Division of Water Quality
Water Quality Section
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Brock & Scott Office Building
SW8 041124
Additional Information Request
New Hanover County
NKT Project No. 04127
Dear Ms. Lewis:
We are responding to your comments of February 10, 2005 as follows
1
2
3
4
A note has been added that "no wetlands exist".
The 19 contour has been removed.
J. Phillip Norris, P.E.
John A. Kuske, III, P.E.
- ..John.S. Tunstall, P.E.
J.A. Kuske, P.E. of Counsel
The volume stored has been recalculated and can be provided in the basin only.
We have discussed this with Noelle Lutheran and have determined that the
drainage goes to UT Bradley Creek, which is SC.
5. Catch basin #5 has an overflow at elevation 23.00. When the basin fills up the
water will flow over the wall to the other side of the catch basin and out to the
vegetated filter.
6. The bypass structure has been revised and is shown on the plans on Sheet C3.
7. Existing contours are shown as requested.
8. The bottom elevation of 19.70 has been dimensioned and is shown on Sheet C2.
9. A vegetated filter of 30 feet in length has been shown.
10. We are enclosing documentation as to Mr. Bonner's status as a member of the
LLC. RECEIVED
FEB 1. �7 2005
OY:
902 Market Street • Wilmington, NC 28401-4733 • Phone: [phone] • Fax: [phone]

Ms. Linda Lewis 1 NC DENR
February 16, 2005
Page 2
11. The vegetation has been specified for the basin.
Since the initial submission, the layout for the parking lot has changed. The new plans
reflect the changes requested by the City. We are enclosing two (2) sets of revised
plans, one (1) set of revised calculations, the revised application pages and LLC
membership documents for your continued review and approval. Please contact us if
you have any further questions or comments. Thank you for your assistance on this
project.
Sincerely,
NORRIS, KUSKE & TUNSTALL
CONSULTING ENGINEERS, INC.
J. hillip Norris, P.E.
JPNlasn
04127 02-16-05-s-sw response-Itr
cc: Tim McGuan 1 Clancy & Theys Construction Company

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Urri5 NCDENR S6 ��(p0- �KANorth 1R-
Carolina Department of Environment and natural esources �� �"^ k
12 Cardinal Drive Extension, Wilmington, NC 28405 [phone] FAX [phone]
N KT #04127
Request for Express Permit Review
FILL-IN all information below and CHECK required Permit(s).
FAX to Cameron Weaver along with a narrative and vicinity map of the project location.
Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made.
APPLICANT Name James P. Bonner, Managing, Partner
Company BSB Properties, LLC _,...._...,,._._—_
Address c/o Brock & Scott, PLLC 5919 Oleander Dr., Suite 115 City/State Wilmington, NC Zip 28403 County New Hanover
Phone [phone] Fax [phone] Email N/A
PROJECT Name Brock & Scott Office Buildin
ENGINEERICONSULTANT J. Phillip Norris, P.E.
Company Norris, Kuske & Tunstall Consulting Engineers, Inc.
Address 902 Market Street City/State Wilmington, NC Zip 28401 County New Hanover
Phone [phone] Fax [phone] Email
-------------------
El STREAM ORIGINATION CERTIFICATION
® STORMWATER ❑ Low Density ❑ High Density -Detention Pond ❑ High Density -Other
❑ Low Density -Curb & Gutter ® High Density -Infiltration ❑ Off Site
❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront
❑ LAND QUALITY ❑ Erosion and Sedimentation Control Plan with acres to be disturbed.
❑ WETLANDS (401) ❑ No Wetlands on Site (letter from COE) ❑Wetlands Delineated/No JO
❑ Greater than 0.1 AC Wetlands Impacted ❑Jurisdictional Determination has been done
❑ Less than 0.1 AC Wetlands Impacted ❑Greater than 0.5 AC Wetlands Impacted
The legislation allows additional fees, not to exceed 50% of the original Express Review permit application
fee, to be charged for subsequent reviews due to the insufficiency of the permit applications.
SUBMITTAL DATES:
SW
CAMA
LQS
401
For DENR use only
Fee Split for multiple permits:
Total Fee Amount $
RECEIVED
MAR 0 4 2005
7. �) - L'mcn-, L� 6�_ - Mu - V) � N-UL4 -kwf'�"

NORRIS, KUSKE & TUNSTALL J. Phillip Norris, P.E.
John S. Tunstall, P.E. John A. Kuske, III, P.E.
CONSULTING ENGINEERS, INC. JamesT_ Pyrtle, P.E. J.A. Kuske, P.E.
902 Market Street • Wilmington, NC 28401-4733 • Phone [phone] • Fax (9�10) 343=96047-�77T .;Tl
E-Mail: [e-mail]
IMAiR,
LETTER OF TRANSMITTAL
To:
Cameron Weaver
Date: March 4, 2005 .lob No. 04127
NC DENR - Wilmington
subject: Brock & Scott Office Building
Wilmington, NC
WE ARE SENDING YOU VIA LAND DELIVER
® ATTACHED ❑ UNDER SEPARATE COVER
El SHOP DRAWINGS ❑ PRINTS ❑ TRACINGS
❑ SPECIFICATIONS []DISKS ❑ COPY OF LETTER
:'FAX "-TRANSMITTAL 'NUMBER `O.F PAGES.
INCLUDING THIS TRANSMfTTAL`
'.Call '=610 343 9653 if, yoU have arty difficulty
receiving this message,
COPIES
DATE
NO.
DESCRIPTION
1
03-03-05
Copy of Request for Express Permit Review Form
1
02-28-05
Check 43324 ($4,000.00) State Stormw' ater Express Review Fee
fASREQUESTED
OR YOUR USE
❑ FOR REVIEW AND COMMENT ElFOR APPROVAL
❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US
REMARKS:
Per our telephone conversation this morning, the Express Review is scheduled for Wed., March 9, 2005.
If you need any additional information, please let us know. Thank you.
cc: Ken Maus 1 Clancy & Theys SIGNED J. Phillip Norris, P.E., 1 asn
(Transmittal Only)
CONFIDENTIAL AND PRIVILEGED: Information contained in this document is privileged and confidential, intended for the sole use of the
addressee. If you are not the addressee or the person responsible for delivering it to the addressee you are hereby notified that any dissemination,
distribution or copying of this document is strictly prohibited. If you have received this document in error please immediately notify the sender and
return to the address above.

Page 1 of 1
North Carolina
Elaine F. Marshall DEPARTMENTaFTHE
Secretary SECRETARY OF STATE
Corporations
*Corporations Home
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Contact Us
*Corporations Division
•Secretaryof State's web site
PO Box 29622 Raleigh, NC 2762"622 [phone]
Date: 2/9/2005
Click here to:
View Document Filings I
Print apre-populated Annual Report Form I File an Annual Report
Corporation Names
Name Name Type
NC BSB Properties, LLC Legal
Limited Liability Company Information
SOS I D:
0734751
FID:
Status:
Current -Active
Date Formed:
7/19/2004
Citizenship:
Domestic
State of Inc.:
NC
Duration:
Perpetual
Registered Agent
Agent Name:
Registered Office Address:
Registered Mailing
Address:
Principal Office Address:
Principal Mailing Address:
Bonner, James P.
5919 Oleander Drive
Wilmington NC 28403
5919 Oleander Drive
Wilmington INC 28403
No Address
No Address
For questions or comments about the North Carolina Secretary of State's web site, please send e-mail to Webmaster.
http://www.secretary,state.nc.us/Corporations/Corp.aspx?PItemld=6495210
2/9/2005

! BSI
7416/2004 15:14 FAX [phone]
State of North Carolina
Department of the Secretary of State
Limited Liability Company
ARTICLES OF ORGANIZATION
SOSID: 734751
Date Filed: 7/191200410:20:00 AM
Elaine F. Marshall
North Carolina Secretary of State
C200419700092
Pursuant to §57C-2-20 of the General Statutes of North Carolina, the undersigned does hereby submit
these Articles of Organization for the purpose of toraung a limited liability company.
1. The name of the limited liability company is: 8S8 Properties, LLC
2. If the limited liability company is to dissolve by a specific date, the latest date on which the
limited liability company is to dissolve; (If no dale for dissolution is specified, there shall be no
limit on the duration of the llmircd liahility company.) Peg22tual_
The name and address of each person executing these articles of organization is as follows. -
(State whether each person is executing these articles of organization in the capacity of a
member, organizer or both. Note. This document must be signed by all persons listed here).
Erik T. Bennington - Organizer
591g Oleander Drive, Suite 1
wi-imiagtan, NC 28403
The street address and county of the initial registered office of the limited liability company is:
Number and Street 5919 Oleander Drive
City, State, Zip Code Wilmington, NC 28403
County New Hanover
The mailing address, ifdifferent from the street address, of the initial registered office is:
The name of the initial registered agent is: ,lames P. Bonner
7_ Principal office information: (Select either a or b)
a. ❑ The limited liability company has a principal office.
The street address and county of the principal office of the limited liability company is:
Number and Street
City, State, Zip Code_ County.____
The mailing address, if different from the street address, of the principal office of the corporation is:
b_ 9 The limited liability company does not have a principal office.

07/16/2004 15:14 FAX [phone] BSI 12}003/003
8. Check one of the following:
V (i) Member -managed LLC: all members by virtue of their status as members shall be
managers of this limited liability company.
(ii) Manager -managed LLC: except as provided by N.C.&S. Section 57C-3-20(a), the
members of this litnited liability company shall not be managers by virtue of their status as
members.
9. Any other provisions which the limited liability company elects to include are attached_
10. These articles will be effective upon tiling, unless a date and/or time is specified. -
Upon Filing
This is the 12th day of July 12004
----------------------------------
Signature
Erik T. Bennington - Organizer
Type or PJrnt Name and Title
NOTES:
I. FjUug fee is $125. This document must be filed with the Secretary of State.
CORPORATIONS DIVISION P.O. Box29622 RALEIGH, NC 27626-0622
fRevisedJanuary 2002) (Form L-0I)
Instructions for Filing

0F W ATF Michael F. Easley, Governor
�
Q G - William G. Ross, Jr., Secretary
co r North Carolina Department of Environment and !Natural Resources
0 Alan W. Klimek, P.E. Director
Division of Water Quality
February 10, 2005
Mr. James P, Bonner
BSB Properties, LLC
c/o Brock & Scott, PLLC
5919 Oleander Drive, Suite 115
Wilmington, NC 28403
Subject: Request for Additional Information
Stormwater Project No. SW8 041124
Brock & Scott Office Building
New Hanover County
Dear Mr. Bonner:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Brock &Scott Office Building on November 22, 2005. A preliminary review of that information
has determined that the application is not complete. The following information is needed to
continue the stormwater review:
Please either delineate all wetlands on site, disturbed or undisturbed, or note on the
plans that none exist.
2. Please remove the 19 contour from the infiltration basin, since this will result in the
seasonal high water table being within 2' of -the bottom.
3. The Division does not normally allow the volume stored in piping and basins to be
included in the provided volume. Using the Rv method to calculate the required
volume should reduce the volume below that which is provided in the basin alone.
Please see comment #4.
4. Please demonstrate that the site is greater than'/2 mile from SA class waters and
unnamed tributaries of SA waters, in order to use a 1" design storm. If you need
assistance in determining whether the receiving stream is considered SA or not,
please contact Noelle Lutheran to schedule a stream call.
5. The overflow elevation is indicated as 23, but the top of grate of all but one of the
catch basins is 23. How does the bypass work?
6. The bypass structure detail on the plans did not print all of the lines. There are a few
dimension lines and labels, but no structure or piping is shown.
7. Please show the existing contours and drainage features of the site. This is especially
important in regard to demonstrating that offsite drainage does not enter the proposed
basin.
8. Please dimension the bottom contour (elevation 20) in the infiltration basin.
North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone [phone] Customer Servicel-877.623-6748
Wilmington Regional Offioe Wilmington, NC 28405-3845 FAX [phone] Internet: h2o.enr.state.nc us One
North Carolina
An Equal Opportunity/Affirmative Action Employer— 50°% Recycled110% Post Consumer Paper Alatura lljy

Mr. Bonner
February 10, 2005
Stormwater Application No. SW8 041124
9. Per .1008(c)(4), a vegetated filter is required for the overflow from all infiltration
systems. If the receiving stream is SA, please add a 50' filter to the plans. If the
project is greater than '/z mile from SA waters, please add a 30' vegetated filter.
10. BSB Properties, LLC, is member managed, therefore all members are
managers. Please provide documentation regarding your status as a member
of the LLC.
.,1. Please specify the vegetation to be planted in the basin.
ti 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 10,
2005, or the application will be returned as incomplete. The return of a project will
necessitate resubmittal of all required items, including the application fee.
If you need additional time to submit the information, please mail or fax your request for
a time extension to the Division at the address and fax number at the bottom of this
letter. The request must indicate the date by which you expect to submit the required
information. The Division is allowed 90 days from the receipt of a completed
application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under
an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and
is subject to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any
original documents that need to be revised have been sent to the engineer or agent. All
original documents must be returned or new originals must be provided. Copies are not
acceptable. If you have any questions concerning this matter please feel free to call me
at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
ENBlari: S:1WQSlSTORMWATERIADDINFO120051041124.feb05
cc: Phil Norris, P.E., Norris Kuske & Tunstall
Linda Lewis
Page 2 of 2

"AMIM' 4 NORRIS, KUSKE &TUNSTALL
AimAdM
_� CONSULTING ENGINEERS, INC.
November 3, 2004
Ms. Linda Lewis, Environmental Engineer
NC DENR Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: State Stormwater Permit Submittal
Brock & Scott Office Building
5431 Oleander Drive
Wilmington, NC
NKT Project No. 04127
Dear Ms. Lewis:
J. Phillip Norris, P.E.
John A. Kuske, III, P.E.
John S. Tunstall, P.E.
J.A. Kuske, P.E. of Counsel
Enclosed are two (2) sets of plans for the subject project, one (1) set of
calculations, the original Division of Water Quality Stormwater Management
Permit application, the original SWU-103 supplement form, one (1) copy of the
stormwater narrative and a $420.00 check for the processing fee.
Please review this information for approval and contact us with any questions or
comments you may have. Thank you for your assistance on this project.
-Sincerely,
NORRIS, KUSKE, & TUNSTALL
CONSULTING ENGINEERS, INC.
J. hillip Norris, P. .
JPN/asn
04127 11-03-04-s-sw-Itr
Enclosures
cc: Don Tezza / Clancy & Theys Construction Company
0"
��-3c'j
RECEIVED
NOV 2 2 2004
A
902 Market Street • Wilmington, NC 28401-4733 0 Phone: [phone] • Fax: [phone]

i
STORMWATER SYSTEM & EROSION CONTROL NARRATIVE
BROCK & SCOTT OFFICE BUILDING
WILMINGTON, NORTH CAROLINA
For
BSB Properties, LLC
c/o Brock & Scott, PLLC 5919 Oleander Drive, Suite 115
Wilmington, NC 28403
[phone]
fool
CA
EA
11966
a = ,'
40
November 2004
Prepared by:
NORRIS, KUSKE, & TUNSTALL CONSULTING ENGINEERS, INC.
902 Market.Street
Wilmington, North Carolina 28401
[phone]
[phone] (Fax)
E-mail: [e-mail]
NKT Project No. 04127

NARRATIVE
DESCRIPTION:
The project site is a 1.38-acre tract located at 5431 Oleander Drive in
Wilmington, North Carolina. The soils of the site consist of moderately wooded, sandy
topsoil and grades ranging from 0.2% to 1.0%. Approximately 1.4 acres will be graded
to allow construction of a new office building with paved parking and paved access.
The runoff from the site is estimated using the rational method 10-year design storm
and rainfall data for the area. Construction is scheduled to begin as soon as all permits
and approvals are obtained.
EROSION CONTROL MEASURES:
The attached plans and specifications give the requirements for erosion control
measures. Silt fencing will be provided where needed. The detention pond will be used
as a silt basin during construction and restored to its design contours prior to
completion. A gravel construction entrance will be constructed at the entrance.
Maintenance will be provided by the grading contractor and developer.
STORMWATER MANAGEMENT MEASURES:
The project site is located in New Hanover County. Land disturbing on the site
will exceed one acre, which requires the site to comply with the State Regulations. The
stormwater runoff from the development will be directed to the stormwater infiltration
area.
CONSTRUCTION SEQUENCE:
The Contractor will. install the gravel construction entrance and silt fence prior to
beginning any clearing and grading. operations. Additional silt fence will be installed
when and if conditions warrant during construction. The detention pond/silt basin will
be constructed immediately after that portion of the site is cleared, and outlet structure
with protection will be installed. Disturbed areas will be landscaped or seeded upon
completion.

EROSION CONTROL NOTES AND MAINTENANCE PLAN
1. Install erosion control measures before beginning construction or as soon
thereafter as possible. All erosion and sediment control practices will be
checked for stability and operation following every runoff -producing rainfall but in
no case less than once every week. Any needed repairs will be made
immediately to maintain all practices as designed.
2. 'Maintain the gravel construction entrances in a condition to prevent mud or
sediment from leaving the construction site. The contractor shall inspect the
construction entrances on a daily basis. This will require periodic top dressing
with additional No. 4 stone. Any objectionable materials spilled, washed, or
tracked onto public roadways shall be removed immediately.
3. Install erosion control measures around the drop inlets as shown on the plans to
trap silt during construction. Inspect the erosion control around the inlets after
each rain and make repairs immediately. Remove sediment when it becomes
0.50 deep to provide adequate storage volume for subsequent rains. When the
contributing drainage area has been adequately stabilized, remove all materials
and any unstable soil and either salvage or dispose of it properly. Bring the
disturbed area to proper grade and appropriately stabilize all bare areas around
the drop inlets.
4. Sediment will be removed from behind the silt fence when it becomes 0.5 feet
deep at the fence. The sediment fence will be repaired as necessary to maintain
a barrier. Silt fence stakes shall be spaced 6 feet apart unless a wire backing is
used with 8 foot stake spacing.
5. Inspect temporary sediment traps 1 check dams after each period of significant
rainfall. Remove sediment and restore the trap to its original dimensions when
the sediment has accumulated to one-half the design depth of the trap. Place
the sediment that is removed in the designated disposal area and replace the
contaminated part of the gravel facing. Check the structure for damage from
erosion or piping. Periodically check the depth of the spillway to ensure it is a
minimum of 1.5 ft below the low point of the embankment. Immediately fill any
settlement of the embankment to slightly above design grade. Any riprap
displaced from the spillway must be replaced immediately. After all sediment -
producing areas have been permanently stabilized, remove the structure and all
unstable sediment. Smooth the area to blend with the adjoining areas and
stabilize properly.
6. No cut or fill slopes shall exceed a side slope of 1 vertical to 3 horizontal unless
otherwise specified on the plan. All slopes shall be seeded and stabilized within
15 days.

7. The stormwater ponds will act as sediment basins and will be cleaned out when
the level of sediment reaches 2.0 ft below the top of the riser. Gravel will be
cleaned or replaced when the sediment pool no longer drains properly.
8. All disturbed areas shall be seeded within 15 days of disturbance. All seeded
areas will be fertilized, reseeded as necessary and mulched according to
specifications in the vegetative plan to maintain a vigorous, dense vegetative
cover.
9. More stringent measures shall be used to halt erosion if those shown on this plan
are not effective.
10. All erosion shall be controlled including side slopes before the project is
completed.
11. Remove temporary - measures upon completion of project. All permanent
measures will be well established before project closeout.

SECTION 02920
SOIL EROSION AND SEDIMENTATION CONTROL
1. GENERAL
1.1 Contractor shall take every reasonable precaution throughout construction to
prevent the erosion of soil and the sedimentation of streams, lakes, reservoirs, other
water impoundments, ground surfaces, or other property as required by State and Local
regulations.
1.2 The Contractor shall install all required silt fences, and construction entrances at
the initiation of work, and have these measures reviewed and approved by the local
permit authority prior to clearing and grading operations.
1.3 The Contractor shall, within 15 days of suspension or completion of land
disturbing activities, provide permanent protective covering for disturbed areas.
Temporary and permanent erosion control measures shall be coordinated to assure
economical, effective, and continuous erosion and siltation control throughout the
construction and post -construction period. Use the specified seed for both temporary and
permanent seeding.
2. PRODUCTS
2.1 Asphalt for anchoring mulch shall be Type SS-1 Emulsion.
2.2 Fertilizer shall be 10-10-10 grade or equivalent.
2.3 Lime shall be dolomitic agricultural ground limestone containing not less than 10
percent magnesium oxide.
2.4 Mulch shall be small grain straw, hay, wood chips, asphalt emulsion, jute or other
suitable material free of undesirable weed seed.
2.5 Phosphate shall be 20 percent superphosphate or equivalent.
2.6 Seed shall be 20% carpet grass, 24% Bermuda, 20% turf Fescue, 10% Creeping
Red Fescue, and 24% Annual Rye grain. Bermuda seed shall be hulled for warm
weather planting and unhulled for cool weather planting. Purity of seed shall be a
minimum of 98 percent and germination shall be a minimum of 85 percent.
2.7 Silt fence shall consist of NCDOT Class A fabric supported by wood or metal
posts spaced not more than 6 feet on center. The bottom of the fabric shall be buried a
minimum of 6 inches.
2.8 Gravel for check dams shall be #57 washed stone.

2.9 Aggregate for construction entrance shall be #4 washed stone.
2.10 Stone rip rap for check dams and erosion control shall be NCDOT Class A or B
as shown.
3. EXECUTION
3.1 General: Take every practicable measure during construction or suspension to
work to minimize erosion and siltation. Measures should include good construction
practices, temporary physical barriers to sediment travel, settling basins for new ditches,
and establishment of vegetative cover.
3.2 Construction Practices
3.2.1 Avoid dumping soil or sediment into any wetland or watercourse.
3.2.2 Maintain an undisturbed vegetative buffer where possible between a natural
watercourse and trenching and grading operations.
3.2.3 Avoid equipment crossings of streams, creeks, and ditches where practicable.
3.2.4 Grade all cut, fill and ditch slopes to minimum slope of 3:1, unless otherwise
shown or directed.
3.3 Temporary Physical Barriers are required where sedimentation on off site
property or excessive erosion is a problem.
3.3.1 Mulch shall be used for temporary stabilization of areas subject to excessive
erosion and for protection of seedbeds after planting where required.
1. Apply grain straw and hay at a rate of 75 to 100 pounds per 1000 square feet
and wood. chips at a rate of 500 pounds per 1000 square feet. Jute and mesh
should be installed as per manufacturer's instructions.
2. Asphalt emulsion for slope stabilization should be applied at a rate of 1,000
gallons per acre. Asphalt emulsion used for anchoring straw should be
applied at a rate of 150 gallons per ton of straw.
3.3.2 Silt Fences shall be used at the base of slopes to restrict movement of sediment
from the site. Clean silt fence of accumulated sediment after each rainfall event or
when it exceeds a depth of 0.5 feet above natural grade.
3.3.3 Stone Check Dams, placed at the discharges of creeks, ditches, and swales,
shall consist of Class A rip rap at minimum two feet high and three feet thick across the

watercourse, with a one foot thick layer of gravel on upstream side. Remove sediment if
accumulated to a depth of 1.0 feet at upstream face.
3.4 Vegetative Cover: Establish and maintain permanent vegetative cover on all
unpaved areas disturbed by the work.
3.4.1 Preparation of Seedbed: Areas to be seeded shall be scarified to a depth of 4
inches and until a firm, well pulverized, uniform seedbed is prepared. Lime, phosphorous
and fertilizer shall be applied during the scarification process in accordance with the
following rates:
Lime: 45 pounds per 1000 square feet
Phosphorous: 20 pounds per 1000 square feet
Fertilizer: 17 pounds per 1000 square feet
3.4.2 Seeding: Disturbed areas shall be seeded with 2 to 3 pounds per 1000 square
feet of the specified seed mixture. Seed shall be worked into the bed to a depth of 114
inch. Regrade and seed eroded areas immediately
3.4.3 Mulch all areas immediately after seeding. Mulch shall be applied and anchored
as specified hereinbefore. Reapply as necessary to retain cover until grass is
established.
3.5 Construction Entrance: Provide an aggregate drive, 20 feet wide by 50 feet long
by 6 inches thick at each entrance to the site used by construction vehicles, until such
time as the permanent roadway is constructed. Remove soil if accumulated to a depth
greater than 0.5 inches.
3.6 Maintenance: The Owner and Contractor shall be responsible for maintaining all
temporary and permanent erosion control measures. Temporary structures shall be
maintained until such time as vegetation is firmly established in the area protected by
the structure. Permanent streambank protection and grassed areas shall be
maintained until completion of the project. Areas that fail to show a suitable stand of
grass or which are damaged by erosion shall be immediately repaired.
END OF SECTION