SW3120102_Cover Letter & Permit_20120131

'A
MCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. James Griffith, Vice -President
AutoZone Development Corp.
123 South Front Street, 3rd Floor
Memphis, TN 38103
Division of Water Quality
Charles Wakild, P. E.
Director
January 31, 2012
Subject: Stormwater Permit No. SW3120102
AutoZone Indian Trail, North Carolina
Union County, North Carolina
Dear Mr. Griffith:
Dee Freeman
Secretary
RECEIVED
DIVISION OF WATER QUALITY
FEB 08 2012
SVVP i ICIN
MOORESVILLE REGIONAL OFFICE
The Stormwater Permitting Unit received a complete Stormwater Management Permit Application for
AutoZone Indian Trail, North Carolina on January 26, 2012. 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 2H.1000 and Session Law 2006-246. We are forwarding
Permit No. SW3120102, dated January 31, 2012, for the construction, operation and maintenance of
the subject project and the stormwater BMPs.
This permit shall be effective from the date of issuance until January 30, 2020 and shall be subject to
the conditions and limitations as specified therein, and does not supersede any other agency permit that
may be required. Please pay special attention to the conditions listed in this permit regarding the
Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of
ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system
for operation and maintenance of the stormwater management system, to record deed restrictions, to
follow the procedures for transfer of the permit, or to renew the permit, 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 150B of the North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
This project will be kept on file at the Mooresville Regional Office. If you have any questions, or need
additional information concerning this matter, please contact Mike Randall at [phone]; or
[e-mail].
Sincerely,
for Charles Wakild, P. E.
cc: ,4�l�eglonalOffice
SPU Files
Matthew Lowder, P.E. Triangle Site Design
Wetlands and Stormwater Branch One
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 NOrthCarolina
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 y+
Phone: [phone] FAX: [phone] Customer Service: 1-877-523-6748 Aatu6 all
Internet: www.ncwaterquality.org s/
An Equal Opportunity 1 Affirmative Action Employer

State Stormwater Permit
Permit No. SW3120102
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 Griffith, AutoZone Development Corp.
AutoZone Indian Trail, North Carolina
Idlewild Road, Hemby Bridge, North Carolina, Union County
FOR THE
construction, operation and maintenance of one bioretention cell(s) 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 January 30, 2020, 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 this permit. The stormwater control has been designed to
handle the runoff from 30,042 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in 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. SW3120102
7. The following design criteria have been provided in the bioretention cell and must
be maintained at design condition:
a. Drainage Area, acres:
Onsite, ft :
Offsite, ft 2..
b. Total Impervious Surfaces, ft2:
Onsite, ft :
Offsite, ft2:
C. Design Storm, inches:
d. Max. Ponded Depth, feet:
e. Seasonal High Water Table, fmsl:
f. Planting Media Depth, feet:
g. Cell Dimensions, feet:
h. Bottom Elevation, fmsl:
i. Bottom Surface Area, W.
j. Permitted Storage Volume, ft3:
k. Bypass / Storage Elevation, fmsl:
I. Predevelopment 1 year 24 hour:
M. Post development 1 year 24 hour:
n. Drawdown Time, hours:
o. Underdrain Diameter, inches:
P. Receiving Stream/River Basin:
r. Stream Index Number:
S. Classification of Water Body:
II. SCHEDULE OF COMPLIANCE
0.87
37,900
0
30,042
30,042
0
1.0
12
597.0
2.0
130 x 10
626.0
4,475.0
2,475.0
630.0
1.040
3.550
6.0
6.0
N. Fork Crooked 1 Yadkin
13-17-20-1
„CP1
1. During construction, erosion shall be kept to a minimum and any eroded areas of
the system will be repaired immediately.
2. 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,
filter 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 stormwater treatment system shall be constructed in accordance with the
approved plans and specifications, the conditions of this permit, and with other
supporting data.
7. Upon completion of construction, prior to issuance of a Certificate of Occupancy,
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State Stormwater Permit
t Permit No. SW3120102
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. 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.
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 with North Carolina General Statute 143-215.6A to 143-215.6C.
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State Stormwater Permit
Permit No. SW3120102
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.
6. 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 31 st day of January, 2012.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Charles Wakiid, P. E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 4

State Stormwater Permit
Permit No. SW3120102
AutoZone Indian Trail, North Carolina
Stormwater Permit No, SW3120102
Union County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
AutoZone Indian Trail, North Carolina
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Certification Requirements:
Page 1 of 2

State Stormwater Permit
Permit No. SW3120102
.1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. All roof drains are located such that the runoff is directed into the system
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation, per the vegetation plan.
9. Vegetated slopes are no steeper than 11.
10. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area and/or volume have been
provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Page 2 of 2