SW5120203_Permit_20120417

State Stormwater Permit
Permit No. SW5120203
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES n�
DIVISION OF WATER QUALITY ii V
STATE STORMWATER MANAGEMENT PERMIT
M AY 2 4 2012
Nc 0BR
HIGH DENSITY DEVELOPMENT Raleigh Regionat411tre
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
State Employees' Credit Union
State Employees' Credit Union - Siler City
1131 North Glenn Avenue, Siler City, Chatham County
FOR THE
construction, operation and maintenance of a stormwater wetland in compliance with the
provisions of Session Law 2006-246 and 15A NCAC 2H .1000 (hereafter referred to as the
"stormwater rules") and the approved stormwater management plans and specifications and
other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until February 27, 2020, and shall be
subject to the following specified conditions and limitations;
1. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff
as described in Section 1.7 of this permit. The stormwater control has been designed to
handle the runoff from 68,009 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in Section 1.7 of
this permit, and per the application documents and as shown on the 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.
6. The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
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State Stormwater Permit. -
Permit No. SW5120203
7. The following design criteria have been provided in the stormwater wetland and must
be maintained at design condition:
/Drainage Area, acres:
Onsite, ft2:
Offsite, ft':
b.
Total Impervious Surfaces, ft2:
L Onsite, ftz:
ftz:
c.
Offsite,
i
Design Storm, inches:
d.
Max. Ponded Depth, feet:
e.'
' Seasonal High Water Table, fmst:
f.
Permanent Pool Elevation, FMSL:
g.
Permitted Surface Area @PP, ft2:
h.
Permitted Storage Volume, ft3:
i.
Storage Elevation, FMSL:
j.
Deep Pool Bottom Elevation, FMSL:
k.
Controlling Orifice:
1.
Drawdown Time, days:
M.
Total number of plants provided:
n.
Receiving Stream/River Basin:
o.
Stream Index Number:
P.
Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
2.23
91,063
6,283
68,009
62,392
5,617
1.0
3.0
680.0
5,563.0
5,563 at temporary pool
582.9
677.0
"0 pipe
2.32
860
Loves Creek / Cape Fear
17-43-10
"C..
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.
The permittee shall at all time 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 re -vegetation of slopes and the filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader, fitter
media, planting media, underdrains, catch basins and piping.
g. Access to the cell and outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The reports
will indicate the date, activity, name of person performing the work and what actions
were taken.
5. The permittee shall submit to the Division of Water Quality an annual summary report
of the maintenance and inspection records for each BMP. The report shall summarize
the inspection dates, results of the inspections, and the maintenance work performed
at each inspection.
6. The facilities shall be constructed as shown on the approved plans. The stormwater
treatment system shall be constructed in accordance with the approved plans and
specifications, the conditions of this permit, and with other supporting data.
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State Stormwater Permit
Permit No. SW5120203
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and
prior to operation of this permitted facility, a certification must be received from an
appropriate designer for the system installed certifying that the permitted facility has
been installed in accordance with this permit, the approved plans and specifications,
and other supporting documentation. Any deviations from the approved plans and
specifications must be noted on the Certification. A modification may be required for
those deviations.
8. If the stormwater system was used as an Erosion Control device, it must be restored to
design condition prior to operation as a stormwater treatment device, and prior to
occupancy of the facility.
9. Access to the stormwater facilities shall be maintained via appropriate recorded
easements at all times.
10. 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.
11. The permittee shall submit final site layout and grading plans for any permitted future
areas shown on the approved plans, prior to construction.
12. 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.
13. 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 Direc_ for that the changes have been
made. 'i 's .t , , .
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
completed Name/Ownership Change form signed by both parties, to the Division of
Water Quality, accompanied by the supporting documentation as listed on page 2 of
the form. The approval of this request will be considered on its merits and may or may
not be approved.
2. The permittee is responsible for compliance with all permit conditions until such time
as the Division approves a request to transfer the permit.
3. 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
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State Stormwater Permit
Permit No. SW5120203
with North Carolina General Statute 143-215.6A to 143-215.6C.
4. 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.
5. 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.
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.
7. The permit issued shall continue in force and effect until revoked or terminated. The
permit may be modified, revoked and reissued or terminated for cause. The filing of a
request for a permit modification, revocation and re -issuance or termination does not
stay any permit condition.
8. 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.
9. Approved plans and specifications for this project are incorporated by reference and
are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit as
allowed by the laws, rules and regulations contained in Session Law 2006-246, Title 15A
NCAC 2H.1000, and NCGS 143-215.1 et,al.
11. The permittee shall notify the Division in writing of any name, ownership or mailing
address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 171h day of April, 2012.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
/'wr
for Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
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