SW8931205_COMPLIANCE_20030122

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

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STORMWATER SYSTEM NARRATIVE
LIBERTY COMMONS NURSING CENTER
WILMINGTON, NC
For
Liberty Commons Nursing Center, Inc.
2320 41 " Street
Wilmington, NC 28403
[phone]
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October 2002
Prepared by:
DECEIVED
OCT 2 3 2002
PROD �# -5weWY 3l za5
ANDREW & KUSKE CONSULTING ENGINEERS, INC.
902 Market Street
Wilmington, North Carolina 28401
[phone]
[phone] -- (Fax)
E-mail: [e-mail]
A & K Project No. 02191

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NARRATIVE
STORMWATER MANAGEMENT MEASURES:
The project site is located in New Hanover County at the existing Liberty
Commons Nursing Center Site. 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 an existing stormwater detention pond. The stormwater
detention pond was designed to accommodate this site and provide 90% TSS removal
without a vegetated filter. The original permit number was SW8 931205 dated May 3,
1994,
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 modified 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. The detention pond will be cleaned out to remove any sediment that
accumulates during construction.

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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary Regional Manager
May 3, 1994
Mr. John A. McNeil, Jr., President
Liberty Commons Nursing Center, Inc.
2320 Forty-first Street
Wilmington, North Carolina 28403
Subject: CERTIFICATION OF COMPLIANCE
with Stormwater Regulations
Stormwater Project No. 931205
Liberty Commons It
New Hanover County
Dear Mr. McNeil:
This Certification is pursuant to the application for Liberty Commons II received on December
8, 1993, with additional information received on May 3, 1994. Based on our review of the project plans
and specifications, we have determined that the Liberty Commons II stormwater control system complies
with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(i). The runoff will be treated
in a detention pond sized to achieve 90 % reduction in Total Suspended Solids. Tract 2 is required to
submit for stormwater approval as either meeting density, or directing their runoff to an engineered
system. Tract 2 will not be allowed to develop as < 1 acre.
Any modification of the plans submitted to and approved by this Office or further development
of this site regardless of the fact that the modification may be less than 1 acre, will require an additional
Stormwater Submittal/Modification and approval prior to initiation of construction. Modifications include
but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces,
addition of built -upon surfaces, redesign or further subdivision of the project area.
This Certification shall be effective from the date of issuance until rescinded. The project shall
be constructed and maintained in accordance with the plans and specifications approved by the
Wilmington Regional Office. This Certification does not supersede any other permit or approval. The
developer is responsible for obtaining any and all permits and approvals necessary for the development
of this project. This could include the Division of Coastal Management under CAMA requirements, the
Division of Environmental Management under Wetland 401 Water Quality Certification and/or a Dredge
and Fill Permit and/or a Sewer Extension/Collection Permit, U.S. Army Corps of Engineers 404 Wetland
Permit, NPDES Stormwater Permit if disturbing five acres or more, local County or Town Agency
permits under their local ordinances, or others that may be required.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 r Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. McNeil
May 3, 1994
Stormwater Project No. 931205
---------------------------------------
A professional engineer must certify that the stormwater system has been installed in accordance
with the approved plans and specifications upon completion of construction. The attached certification
should be received by this Office within 30 days of completion of construction.
K• 6
If you have any questions concerning this matter, please call Ms. Linda Lewis or me at (910) 395-
Sincerely,
4•
11
Dave Adkins
Water Quality Supervisor
DAlarl: S:IWQSISTORMWATICERTTFIC1931205.MAY
cc: Mr. Larry Sneeden, P.E.
Mr. Sky Conklin, New Hanover County Inspections
Bradley Bennett
Jim Craig, New Hanover County
Linda Lew i s
Wilmington Regional Office
Central Files

DIVISION OF ENVIRONMENTAL MANAGEMENT
PROJECT DATA
Project Name:
Liberty Commons II
Project Number:
931205
Location:
New Hanover County
Applicant:
Mr. John A. McNeil, Jr., President
Mailing Address:
Liberty Commons Nursing Center, Inc.
2320 Forty -First Street
Wilmington, North Carolina 28403
Submittal Date:
December 8, 1993
Water Body Receiving Stormwater Runoff:
UT Bradley Creek
Classification of Water Body:
"SC"
If Class SA, chloride sampling results:
NIA
Pond Depth:
6.0 feet
Permanent Pool Elevation:
36.0 MSL
Total Impervious Surfaces Allowed:
80,591 square feet
Offsite Area entering Pond:
NIA
Green Area entering Pond:
130,244 square feet
Required Surface Area:
4,240 square feet
Provided Surface Area:
9,800 square feet
Provided Storage Volume:
10,850 cubic feet
Temporary Storage Elevation:
37.0 MSL
Controlling Orifice Type/Diameter:
1.5" pipe

1.
2.
3.
4.
5.
b.
7.
WET DETENTION POND EVALUATION
Yes No The design storage is for the runoff from all impervious surfaces resulting from
1-inch of rainfall and is located above the permanent pool.
Yes No The permanent pools designed for 90 % total suspended solid (TSS) removal.
Therefore, no vegetative filter is required.
Yes No The runoff completely draws down to the permanent pool in 5 days, but not less
than 2 days.
Yes No The mean depth of the permanent pool is a minimum of 3 feet.
Yes No The inlet structure is designed to minimize turbulence and short circuiting.
Yes No An appropriate operation and maintenance plan has been provided for the
system.
Yes No THIS PROJECT MEETS THE STORMWATER CONTROL REQUIREMENTS
OF 15A NCAC 2H.1003 (g), (i), (k), and (1) (For Yes, 1 through 7 must all
be highlighted Yes.)
Brief Explanation: This detention pond is designed to remove 90% total suspended solids without the
aide of a vegetative filter.
DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF
Wilmington Regional Office
MAY 9�-
Date Individual Evaluating Form/Plans
Date --"---Regional Water Quality Supervisor
cc: Applicant/Bradley BennettlarVWiRO/CF

ti
Is the built upon area at least 30 feet from mean high water of all surface waters? Yes If no, please
provide a description
(Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities are allowed
within 30 feet of the mean high water line if the project is intended to meet stormwater control
requirements through density limits.)
AND PROTECTIVE COVENANTS
By my signature below, i certi orded deed restricti protective covenants for this project
shall limit the allowable built -upon area per lot square feet inclusive of right-of-way,
structures, pavement, walkways or rick, stone, or slate, ding wood decking, state that
the covenants will be on all parties and persons claiming under them, tha run with the
land, an nefits may be enforced by the State of North Carolina, therefore, the covenant cane t be
ged or deleted without consent of the State.
CERTIFICATION
I, John A. McNeil, Jr. certify that the information included on this
submittal form is correct, that the project will be constructed in conformance with this information, and
that to the best of my knowledge, the proposed project complies with the requirements of 15 NCAC
211.1003 (b). I authorize the below named person or fug to submit stormwater plans on my behalf, and
agree to abide by the deed restriction stateTcw above.
Owner's Si azure Date
Provide authorized person or firm name and address below:
John A. McNeil Jr. President Liberty Commons Nursing Center, Inc.
2320 Forty First Street
Wilmington, NC 28403
,aNotary Public for the State of� ,
County of , do hereby certify %QA1 , personally
appeared before me this 1 day of a �``��
-F `iCRA t , and acknowledges the due execution
of the foregoing instrument. Witness my hand and oft W
o�OTq�gr
My commission expires 309 6 "-: y pU B0G
' VER+++"�
DIVISION OF ENVIRONMENTAL NV'AGE1V>E1V'T SIGN -OFF
Regional Office
N MAY fft4
Date -Individual Evaluating Forms/Plans
Date Regional Water Quality Supervisor
cc: Applicant[WiRO/Bradley Bennett/Central Files

DIVISION OF ENVIRONMENTAL MANAGEMENT
DENSITY
ENGINEERED X
PROJECT � DATA
Project Name`_ Liberty' Commons Nursing Center, Inc.
Location (County, Township/Municipality, Address, State Road) New Hanover County
121 Racine Drive
Owner's Name Liberty Commons Nursing Center , ' Inc .
MailingAddress 2320 41st Street
Wilmington, NC 28403-
Phone Number 910-392-6899
Submittal Date 'December 2, 1993
Brief Description (include map and appropriate drawings) New nursing center with
parking lot
Name of Water Body Receiving Stormwater Runoff Unnamed Tributary to Bradley Creek
Classification of Water Body SC (HQW) If SA waters, engineered system, and distance is c0.5
miles, attach report of chloride sampling results NSA mgll
State/Federal Permits/Approvals Required (Check appropriate blanks)
CAMA Major Sedi nentation/Erosion Control X
404 Permit DEM/DHS Sewage Disposal
Other (Specify) DEHNR Water Extension '
CALCULATION OF BUILT UPON AREA
Built upon area means that portion of a development that is covered by impervious or partially pervious cover
including buildings, pavement, recreation facilities, gravel, etc., but not including wood decking. if the project
includes areas'draWmg to different water classifications, please note them separately below.
Subwatershed` t� ' ,� `f'Subwatershed
Classification
Built upon area
Total Project Area
4 8 4 A c
% Built upon Area
38 0 , . •,
Allowable B/U Area
Is the Project B/U Area 5 the Allowable B/U.Area? : 'Yes (If no, an engineere
% Built upon area = (built upon area / total project area) * 100
Built upon area limits for projects to meet density: SA waters — 25 %, Other —30 %
SI'ORMWATER COLLECTION SYSTEM
Describe how the runoff will be treated Runoff will be collected a n d
directed to a retention pond exceeding
Office use only
U
lf" DEC 0 B 1993
^ aJ #. 9-flI05

SYURMWATER
MAR 2 N 1994
D E IV[
OPERATION AND MAINTENANCE PLAN
'aoj # q3 ZOS
STORMWATER DETENTION POND
LIBERTY COMMONS 2
I. DESCRIPTION
A detention pond is provided to improve water quality
of the stormwater to be discharged to an existing ditch. The
pond is designed to detain the runoff from the first inch of
rainfall from the proposed site and discharge it over a
period of 2 to 5 days. The pond is to have a normal water
level elevation of 36.0, a top of storage elevation of 37.0,
bottom elevation of 28.0, and 3:1 sideslopes.
II. MAINTENANCE
The owner shall maintain original sideslope and
vegetative cover during and following construction.
Sedimentation should be expected daring construction
activities. This sediment should be removed monthly and
vegetation reestablished.
For the long term, significant sedimentation is not
expected within the basin. The basin should be inspected,
cleaned, and vegetation reestablished twice a year.
Sediment should be removed when the pond depth is reduced to
30.0', or 6.0' below the normal water level. If erosion or
die -off occurs, damaged areas should be regraded and
reseeded immediately. Catch basins and piping should be
inspected monthly and cleaned when necessary. Orifice and
trash rack should be inspected after each rainfall event for
clogging and debris accumulation and cleaned as necessary.
John . McNeil, Jr., Presiden
Liberty Commons Nursing Center, Inc.
2320 Forty First Street
Wilmington, NC 28403
North Carolina
County
{
I, baron H . AiL,_),P_ LL, a Notary Public for said County and State,
do hereby certify that Sahn�+�Mc��l�y r._- did execute the above
an the?!3 _ of►"-,, 1994.
_ My Commission Expires: �_ G rl Notary �0-Urn �1 __ __

•
II

SITEWORKS DESIGN GROUP
P.O. Box 3988
WILMINGTON, NORTH CAROLINA 28406
[phone]
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SHEET NO
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CHECKED BY
OF
DATE - -I 2,3 1/93 .
DATE
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SITEWORKS DESIGN GROUP
P.O. Box 3988
WILMINGTON, NORTH CAROLINA 28406
[phone]
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DATE
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SNORMWATER
E C E � W
DEC 0 9 1993 DU
SECTION 02920
D E M
SOIL EROSION AND SEDIMENTATION CONTROUtOl # 931ZQS
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,
sediment basins, check dams, 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 30 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.
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 centipede. Mixture shall contain 20 pounds rye
per 100 pounds if planted November through March.
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 #78M washed stone.
2.9 Aggregate for construction entrance shall be #57 washed
stone..
25

2..10 Stone rip rap for check dams and erosion control shall be
NCDOT Class A or B as shown.
2.11 Wood Stakes for tree protection shall be 4' tall, placed at
f' intervals at the dripline of the tree to be preserved.
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 seed beds
after planting where required.
I. 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 1000 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 and in
drainage swales to restrict movement of sediment from the site.
Straw bales may be required for reinforcement.
w

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.
3.4 Sedimentation Basins are required for large ditches to
provide for settling of sediments prior to the ditch discharging
offsite. Basins should be constructed with sufficient surface
area, a minimum 2 feet of sediment storage depth, and minimum 2
feet of freeboard to provide for storage of stormwater `and
settled soil. Stone check dams shall be placed at the discharge
of each basin.
3.5 Vegetative Cover: Establish permanent vegetative cover on
all unpaved areas disturbed by the work.
3.5.1 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: 50 pounds per 1000 square feet
Phosphorous: 20 pounds per 1000 square feet
Fertilizer: 20 pounds per 1000 square feet
3.5.2 Seeding: Disturbed areas along roads and ditches shall be
seeded with 2 to 3 pounds per 1000 square feet of the specified
seed mixture during the period from December through January.
Seeding performed during the period from March through June does
not require Rye seed in the mixture and may be applied at a rate
of 1 to 2 pounds per 1000 square feet. Seed shall be worked into
the bed to a depth of 1/4 inch.
3.5."3 Mulch all areas immediately after seeding. Mulch shall be
applied and anchored as specified hereinbefore.
3.6 Construction Entrance: Provide an aggregate drive, 25 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.
3.7 Maintenance: The Owner 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 which fail to
show a suitable stand of grass or which are damaged by erosion
shall be immediately repaired.
END OF SECTION
27