SW6090304_CURRENT PERMIT_20090424

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

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�C®ENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Paul Perry, President
P.O. Box 968
Sanford, North Carolina 27331
Division of Water Quality
Coleen H. Sullins
Director
April 24, 2009
Subject: Stormwater Permit No. SW6090304
Perry Brothers Tire Center
High Density Commercial Bio-Retention Project
Harnett County
Dear Mr. Perry:
Dee Freeman
Secretary
The Stormwater Permitting Unit received a complete Stormwater Management Permit Application for
Perry Brothers Tire Center on April 20, 2009. 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 NCAC2H.1000 and Session Law 2006-246. We are forwarding Permit No. SW6090304,
dated April 24, 2609, 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 April 23, 2019, 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 inspection 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 150B 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.
This project will be kept on file at the Fayetteville Regional Office. If you have any questions, or need
additional information concerning this matter, please contact Mike Randall at [phone]; or
[e-mail].
S inc�erely,
for Coleen H. Sullins
cc: , Fayetteville Regional Office
Central Files
SPU Files
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] k FAX: [phone] k Customer Service: 1.877-623.6748
Internet: w .ncwaterquality.org
An Equal Opportunity k Affirmative Action Employer
-
DEMR—FR®
One
NorthiCarolina
Naturally

State Stormwater Permit
Permit No. SW6090304
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
Paul Perry, President
Perry Brothers Partnership
Perry Brothers Tire Center in Dunn, North Carolina
Harnett 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 April 23, 2019, and shall be subject
to the following specified conditions and limitations:
1. 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 1.7 of this permit. The stormwater control has been designed to
handle the runoff from 74,000 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.
Page 1 of 6

State Stormwater Permit
Permit No. SW6090304
The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
The following design criteria have been provided in the bioretention cell and must be
maintained at design condition:
a.
Drainage Area, acres:
Onsite, ft2:
Offsite, ft2:
b.
Total Impervious Surfaces, ft2:
Onsite, ft2:
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, ft2:
j.
Permitted Storage Volume, ft':
k.
Bypass / Storage Elevation, fmsl:
I.
Predevelopment 1 year 24 hour:
M.
Post development 1 year 24 hour:
n.
Drawdown Time, hours:
o.
Receiving Stream/River Basin:
r.
Stream Index Number:
S.
Classification of Water Body:
189,900
97,825
92,075
74,000
74,000
0
12"
201.5
2'
154' x 51'
207.5
7,290
6,690
212.00
5.230
14.4
48 hours
Black River /Cape Fear
18-68 (.05) & 18-68 (3.6)
C Sw ORW
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 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.
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.
Page 2 of 6

State Stormwater Permit
Permit No. SW6090304
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. This permit shall
become void 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. 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 Director that the changes have been made.
Page 3 of 6

State Stormwater Permit
Permit No. SW6090304
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.
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.
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
21-1.1000, 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 24M day of April, 2009.
NORTH CAROLINA VIRONMENTAL MANAGEMENT COMMISSION
for. oleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No. SW6090304
Perry Brothers Partnership
Perry Brothers Tire Center in Dunn, North Carolina
Harnett 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,
Perry Brothers Tire Center in Dunn, North Carolina
(Project Name)
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
Page 5 of 6

State Stormwater Permit
Permit No. SW6090304
Certification Requirements:
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 3:1.
.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 6 of 6

DWQ USE ONLY .
Date Receive
Fee Paid
Permit Number
05
�WGD o a
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
PERRY BROTHER PARTNERSHEP - tax id: 560571016
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
PAUL PERRY - PRESIDENT
3. Mailing Address for person listed in item 2 above:
PO BOX 968
City:SANFORD State:NC Zip:27331
Phone: (919 ) 775-7225 Fax: (910 ) 892-4262
Ema i1:[e-mail]
4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
PERRY BROTHERS TIRE CENTER
5. Location of Project (street address):
WEST SIDE OF POWELL AVE.
City:DUNN County:HARNETT Zip:28334
6. Directions to project (from nearest major intersection):
CUMBERLAND STREET WEST FROM INTX. WITH BROAD STREET TAKE LEFT (SOUTH) ON POWELL
AVE. THEN 400' ONWARD SITE IS ON THE RIGHT (WEST) SIDE OF THE ROAD
7. Latitude:350 1V 3.37" N Longitude:780 37' 50.44" W of project
8. Contact person who can answer questions about the project:
Name:CARLTON HUNT Telephone Number: (919 ) 779-1855
Emai1:C1 [e-mail]
II. PERMIT INFORMATION:
Form SWU-101 Version 09.25.08 . Page] of4

1. Specify whether project is (check one): ®New ❑Renewal ❑Modificafion
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)
3. Specify the type of pro' t (check one):
❑Low Density High Density [:]Redevelop ®General Permit ❑Universal SMP ❑Other
4. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial Stormwater
III. PROJECT INFORMATION
1. 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.
STORMWATER FROM THE PARKING LOT AND BUILDING WILL SHEETFLOW INTO A BIORETENTION
DEVICE. GRAVEL AREAS AND FOREBAYS WILL BE USED TO SLOW DOWN THE THE
FLOW INTO THE DEVICE. THE 1ST INSH WILL BE TREATED IN THE DEVICE ANY FLOW GREATER THAN
THAT WILL GO THROUGH BYPASS RISERS AND AWAY.
2. Stormwater runoff from this project drains to the cape fear River basin.
3. Total Property Area: 3.70 acres 4. Total Coastal Wetlands Area: 0 acres
5. , Total Property Area (3) - Total Coastal Wetlands Area (4) = Total Project Area":3.70 acres
6. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA)A6 %
7. How many drainage areas does the project have?3
8. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
For high density projects, complete the table with one drainage area for each engineered stormwater device.
Basin Information
Drainage Area 1'
,'.::Drainage Area 2 '
Receiving Stream Name
Black River
Stream Class & Index No.
# 18-68(.05) & 18-68(3.6)
Class C Sw ORW
Total Drainage Area (so
189900
On -site Drainage Area (sf)
97825
Off -site Drainage Area (so
92075
Existing Impervious" Area (so
0
Proposed Impervious'Area (so
74000
% Impervious' Area (total)
39
Impervious* Surface Area
Drainage Area 1
Drainage Area 2''"
On -site Buildings (so
13860
On -site Streets (so
0
On -site Parking (so
60140
On -site Sidewalks (so
0
Other on -site (sf)
0
Off -site (so
0
Total (so:
74000
Form SWU-101 Version 09.25.08 Page 2 of 4

Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
"Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area
percentage calculation. This is the area used to calculate overall percent project built upon area (BUA).
9. How was the off -site impervious area listed above derived? there is no offsite impervious drainign into the
Projects in Union County: Contact the DWQ Central Office staff to check to see if you project is located
within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater
requirements.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
One of the following property restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table
listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment.
Forms can be downloaded from httl2:Z/h2o.enr.state.nc.us/­su/bml2 forms htm - deed restrictions.
Form DRPC-1
High Density Commercial Subdivisions
Form DRPC-2
High Density Developments with Outparcels
Form DRPC-3
High Density Residential Subdivisions
Form DRPC4
Low Density Commercial Subdivisions
Form DRPC-5
Low Density Residential Subdivisions
Form DRPC-6
Low Density Residential Subdivisions with Curb Outlets
By your signature below, you certify that the recorded property restrictions and protective covenants for this
project shall include all the applicable items required in the above form, 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 NC DWQ and that they will be recorded prior to
the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for each
BMP specified for this project. Contact the Stormwater Permitting Unit at [phone] for the status and
availability of these forms. Forms can be downloaded from http://h2o enr state nc uslsu/bml2 forms htm.
Form SW401-Low Density
Form SW401-Curb Outlet System
Form SW401-Off-Site System
Form SW401-Wet Detention Basin
Form SW401-Infiltration Basin
Form SW401-Infiltration Trench
Form SW401-Bioretention Cell
Form SW401-Level Spreader
Form SW401-Wetland
Form SW401-Grassed Swale
Form SW401-Sand Filter
Form SW401-Permeable Pavement
Form SW401-Cistern
Low Density Supplement
Curb Outlet System Supplement
Off -Site System Supplement
Wet Detention Basin Supplement
Infiltration Basin Supplement
Underground Infiltration Trench Supplement
Bioretention Cell Supplement
Level Spreader/Filter Strip/Restored Riparian Buffer Supplement
Constructed Wetland Supplement
Grassed Swale Supplement
Sand Filter Supplement
Permeable Pavement Supplement
Cistern Supplement
Form SWU-101 Version 09.25.08 Page 3 of

VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the
interactive online map at httl)://h2o.enr.state.nc.us/su/msi maps htm)
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
Initials
• Original and one copy of the Stormwater Management Permit Application Form
• Original and one copy of the Deed Restrictions & Protective Covenants Form (if
required as per Part IV above)
• Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP_
• Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD)
payable to NCDENR
• Calculations & detailed narrative description of stormwater treatment/management
• Copy of any applicable soils report
• Two copies of plans and specifications (sealed, signed & dated), 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, drainage features, collection systems, and stormwater control measures
- Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations
- Drainage areas delineated
- Vegetated buffers (where required)
VII. AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm)
Designated agent (individual or firm)
Mailing Address:
City: State:
Phone: ( 1 Fax: ( 1
Email:
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) _PaLd�i^�\d
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H .1000. l �,
a 9
Signature:
Date:
Fonn SWU-101 Version 09.25.08 Page 4 of 4

Permit Number: s W G o 1 03 O T
(to be provided by DWQ)
Drainage Area Number: /r �
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
— Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
— Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
— Heavy equipment will NEVER be driven over the bioretention cell.
— Special care will be taken to prevent sediment from entering the bioretention cell.
— Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblems;
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
The inlet device: pipe,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3 Page 1 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretireatment area.
Erosion has occurred.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove the weeds, preferably by
hand.
The bioretention cell:
Best professional practices
Prune according to best professional
vegetation
show that pruning is needed
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying.
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/wives are present
Remove tree stake/wires (which
six months after planting.
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and/or mulch are
Determine the extent of the clogging
clogged with sediment.
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three'inches.
Search for the source of the
sediment and remedy the problem if
possible.
An annual soil test shows that
Dolomitic time shall be applied as
pH has dropped or heavy
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new planting media.
Form SW401-Bioretention O&M-Rev.3 Page 2 of 4

BMP element.
Potentialproblems:
How 1 will remediate theproblem:
The underdrain system
if applicable)
Clogging has occurred.
Wash out the underdrain system.
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919-
outlet.
733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Projectname: i'c'aJ l;re Cent ✓
BMP drainage area number: 2,
Print
Address: /�{ U / ��UP
j)�!/S&g6 41tiP S� ) o i i /i 1V c Z 3 5 311
phnnP. �'Il 67-Wi 7' J. 9 L.
-7-76-67
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
/V (' County of LWo_tt t_ do hereby certify that
personally appeared before me this d(.14
day of J0.Algttiaa.�d-6oq , and acknowledge the due execution of the
forgoing bioretention umaintenance requirements. Witness my hand and official seal,
uu„ i�ryr����
N .
NOTARY:
PUBLIC
s
Q Az
mnmum
SEAL
My commission expires��Lao 10
Form SW401-Bioretention I&M-Rev. 2
Page 4 of 4

Red triangles at the upper right hand comer indicate design comments
Please complete the yellow shaded items.
of wArF
NC ENR o� Q�`
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information.
rm/ea name
Contact name
Phone number
Date
Drainage area number
FLKHY BROTHERS TIRE CENTER
CARLTON HUNT
919-779-1855
APRIL 9 2009
Site Characteristics
Drainage area
189 900 ft2
Impervious area
74,000 f 2
Percent Impervious
39.0% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flaw required?
Y
1-yr. 24-hr runoff depth -
(Y or N)
1-yr, 24-hr intensity
3 in
Pre -development 1-yr, 24-hr peak flow
5.76 in/hr
23
5.230 n3/sec
Post -development 1-yr, 24-hr peak now
.
140 3
n3/sec
Pre/Post 1-yr, 24-hr peak control
_
9.170 nisec
Storage Volume: Non -SA Waters
Minimum volume required
6,330.0 f 3
Volume provided
6,690.0 n3
OK
Storage Volume: SA Waters
1.5' runoff volume
Pre -development 1-yr, 24-hr ninon
n3
n3
Post -development 1-yr, 24-hr runoff
n3
Minimum volume required
0 n3
Volume provided
n3
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
it
Surface area of the top of the bioretention call1.00
7.290.0 112
OK
WidLength:
154 ft
OK
or-
-or-Radius
51 it
OK
it
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
36 hr
OK
Drawdown time, total:
48 hr
In -situ soil.
Soil permeability
2.OD in/hr OK
Planting media soil.
Soil permeability
2.00 inthr OK
Soil composition
% Sand (by weight)
85% OK
% Fines (by weight)
12% ' OK

% Organic (by weight)
3% OK
Total: 100 %
Phosphorus Index (P-Index) of media
20 (unitless)
Basin Elevations
Temporary pool elevation
212.00 fmsl
Type of bioretention cell (answer 'Y' to only one of the two following
questions):
Is this a grassed cell?
Y (Y or N)
Is this a cell with treestshrubs?
N (Y or N)
Planting elevation (top of the mulch or grass sod layer)
211 fmsl
Depth of mulch
2 inches
Bottom of the planting media soil
209 fmsl
Planting media depth
2 it
Depth of washed sand below planting media soil
0.5 ft
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
SHWf elevation
Distance from bottom to SHWT
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcever species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
What is the length of the vegetated fitter?
Does the design use a level spreader to evenly distribute flow?
Y (Y or N)
6
2
1 it
207.5 fmsl
201.5 fmsl
6 It
0
0
3
OK
OK
50
OK
OK
OK
Da
Y (Y or N) OK
N (Y or N) Excess volume must pass through filter.
If
n (Y or N) Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
SA waters)?
Y (Y or N)
OK
Is the BMP located at least 100 feet from water supply wells?
Y (Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y (Y or N)
OK
Is the BMP located in a proposed drainage easement with access to
a public Right of Way (ROW)?
Y (Y or N)
OK
2.5 ftlsec
Insufficient inlet velocity unless energy dissipating devices are being
Is the area surrounding the cell likely to undergo development in the
used.
future?
n (Y or N)
OK
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an'X' in the shaded cell)
Gravel and grass
(61inches gravel followed by 3-5 It of grass)
Grassed swale
Forebay
Other
N (Yor N) OK
Y (Y or N) OK
X
OK
x