SW4111201_CURRENT PERMIT_20120207

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
� CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
�o�aoa�7
YYYYMMDD

ffkv-�-PYA`
NCDENR
North Carolina Department o#:.Environment and Natural Resources
-Di'visioi;of`V�later Quality
. �15:
Beverly Eaves Perdue ::` Charles WkiM; P, E.
Governor Director
January6, 2012
Mr. William R. Keen
Keen Transport
PO Box 389
New Kingstown, PA 17072
Subject: Stormwater Permit No. SW4111201,
Keen Transport
High Density Commercial Wet Detention Basin Project
Forsyth County
Dear Mr. Keen:
Dee Freeman
Secretary
RECEIVE 0
N-C Cort. of kMR
FEB 01 2012
Wins ccn•Sa��-,
--Regicnal G+s;ca
The Stormwater Permitting Unit received a complete Stormwater Management Permit Application for Keen
Transport on December 27, 2011 after after additional information was requested on December 9, 2011.
Staff review of the plans and specifications has,.determined that the. project, as proposed, will comply with
the Stormwater Regulations set forth in Title-15&NCA 2H•.1000 and Session Law 2006-246. We are
forwarding Permit No. SW4111201, datediJanuary6i'012'for the construction, operation and
maintenance of the subject project and the skormwater''BMPs.
This permit shall be effective from the date of issuance until Janurary 5, 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,; ' ill 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.
Thiyequest 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 Winston Salem Regional Office. If you have any questions, or need
additional information concerning this matter, please contact Brian Lowther at [phone]; or
[e-mail].
Sincerely,
Jar Charles Wakild, P.E.
Wetiands and Stormwater Branch One
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Nortli Caro! i i1a
Location: 512 N. Sa€isbury St. Raleigh, North Carolina 27604 `.. Pli 919-807.63001 FAX: [phone]�atlr! a!II
i %/
Internet: www.ncwaterquality.org ;J
An Equa; Opportunity1 Affirmative Action Employer

SW4111201 — Keen Transport
CC.' Asheville Regional Office
SW4111201 File
ec: J. Neal Tucker, PE — Stimmel Associates, PA
i r
4
. tvil" •"�4 ;t>'� i{, is
.Y•I �:i. RAJ<�r .Sr r
.Page,,2 of-2::_

State Soormwater Permit
Permit No.SW 4111201
STAT&'rOFINORTH . CARO LINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions:df,Articie 2c1,of;Chapter 143, General Statutes of
North Carolina as amended, and,61. er'applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Keen Transport, Inc.
Keen Transport
3350 Temple School;RodWrnston-Salem, Forsyth County
FOkTHE' i.
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of 15A NCAC 2H .1000 and S.L. 2006-246 (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 df,issuance until January 5, 2020, and shall
be subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective orily,W"A respect to the nature and volume of stormwater
described in the applicationand 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 272,250 square feet of
impervious area.
3. The tract will be limited to.ahe,.amount :of built -upon area indicated on page 3 of
this permit, and per approved`'pla`ns
r
F
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.
# Y: =Page' 1.of.,6'

State Stormwater Permit
Permit No.SW4111201
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, aSres: 11.8
Onsite, ft : 514,159
Offsite, ft2: 0
b. Total Impervioys Surfaces,`ft2:�,3�, 2,72,335.
Buildingsft . a,';
Roads/Parking, ft :
Other, ft : 250,399 (including sidewalks)
Offsite, ft2: 0
c. Pond Depth, feet: 3'
d. TSS removal efficiency: 85%
e. Design Storm: 1.0 inch
f. Permanent Pool Elevation, FMSL: 887.50
g. Permitted Surface Area @PP ft2: 19,509
h. Permitted Storage Volume, ft3: 24,154 at temporary pool
i. Storage Elevation, FMSL: 888.60
j. Controlling Orifice:' ; 2.5"0, pipe
k. Permanent Pool Volume, ft3„c598FdQ {r;
I. Forebay Volume, ft3: s.4:1.2,789`
m. Receiving Stream/River Basin: _ -.;,South -.Fork Muddy Creek 1 Yadkin
n. Stream Index Number: 12-94013
o. Classification of Water Body: "C"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be, constructed in its entirety,
vegetated and operational for its.Jntend ed.-us6: rior,to the construction of any
built -upon surface.
2. During construction, erosion shall be.kepf 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. , i;,,.. :_�-. z ..;�?
c. Mowing and revegetation of slopes:^andrthe 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 outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must;.bo.kept,and made available upon
request to authorized personnel ,of: DW,Q; ; Th6:';records will indicate the date,
activity, name of person. performing'``th,e,, 6:0'and what actions were taken.
5. 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.
Page 2 of 6

State Stormwater Permit
Permit No.SW4111201
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.usbd'as.an Erosion Control device, it must be
restored to design conditionsl rior 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 approvea,.�pla,r s ;,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 pipingiof:any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit.firiallsite 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 .perrittee,when. the permitted site does not meet one
or more of the minimum reg6lrein 6,nts 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
1. 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, to the Division of Water
Quality, signed by both parties, and accompanied by supporting documentation
as listed on page 2 of the form:,The, project must be in good standing with the
Division. The approval of-this.'requestwill-be considered on its merits and may or
may not be approved.{ ';
• i.1 � , 1�;Yy K
2. The permittee is responsible"for compliance with all permit conditions until such
time as the Division approves the transfer request.
Page 3 of 6

State Stormwater Permit
Permit No.SW4111201
3. Failure to abide by the conditions anOdimita.tions,I'tontained in this permit may
subject the Permittee to enforcementiactio�i,,'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 Perm itteb:.st aH-,:t`aki immediate corrective action,
including those as may be require✓dby this'Division, such as the construction of
additional or replacement store )Water l.nager`rment 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 establish`ed`in.the North Carolina Erosion and
Sediment Control Planning and DesignManual' '
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:of''ah'y 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 6t" day of January, 2012.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
%r Goleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No.SW4111201
Keen Transport
Stormwater Permit No. SW4111201
Forsyth 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, .
Keen Transport
(Project)
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.SW4111201
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.,
?I
3. All the built -upon area•associat4 lAthti.the' project is graded such that the
runoff drains to the syste m..
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 pEirmanent:vegetation.
9. Vegetated slopes are no steep an
10. The inlets are located per theapprovedplans and do not cause short-
circuiting of the system.
11. The permitted amounts of surface area andlor volume have been
provided.
12. Required drawdown devices are cori#,] "sized per the approved plans.
13. All required design dept s are,p1gvi,,.6
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.
Please submit this Designer's Certification to: Winston Salem Regional Office
Surface Water Protection
585 Waughtown Street
:5 Winston Salem, NIC 27107
E
Al)

Krutivtu
' A N.C,Dept. of ENR
�r
.lAN 2.6 2012
iNC®ENR Winston-Salem
North Carolina Department of Environment and Natural Resou ICeS Regional office
Division of Water Quality
Beverly Eaves Perdue Charles- Wakild,-P: E. Dee Freeman
Governor Director,:--:,,.�,,�.,.� M=-�j�°utt " ""�" -~Secr'etary
January 6, 2012
Mr. William R. Keen
Keen Transport
PO Box 389 JAN 17 2012
New Kingstown, PA 17072 S 1,
Subject: Stormwater Permit No. SW4111201 vvnran o+spuTv SECTION
Keen Transport k; ASticvlu_ n� GlQ>JA.L GFF4CE
High Density Commercial Wet Detention Basin Project. •mow^ ^�'�''•�"'
Forsyth County
Dear Mr, Keen:
The Stormwater Permitting Unit received a'cortmlete Stormwater Management Permit Application for Keen
Transport on December 27, 2011 after after additional information was requested on December 9, 2011.
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. SW4111201, dated January 6, 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 Janurary 5, 2020 and shall be subject to the
conditions and limitations as specified therein,;-bnd7.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.
ON—
This project will be kept on file at the Winston Salehi'.Regional Office. If you have any questions, or need
additional information concerning this matter, pleaspE q ntact Brian Lowther at [phone]; or
[e-mail]. r:r. ,•
Sincerely,
45
for Charles Wakild, P.E.
Wetlands and Slormwater Branch
1617 Mail Service Cenler, Raleigh, North Carolina 27699-1617
Location. 512 N. Salisbury St, Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Interrel: www.ncwalerquality.org
NorthCarolina
;Vatutally
An Equal Opponunily 1 Alfirmalive Action Employer

8W4111201 - Keen Transport
cc: Asheville Regional Office
SW4111201 File
--ec:- - J. Neal Tucker, PE — Stimmel Associates, PA
,
r.
Page 2 of 2

State Stormwater Permit
Permit No.SW4111201
S TATW,0F -NORTH . C ARO L I NA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions:.of) irti.c.p 2c1.:.pf;Ghapter 143, General Statutes of
North Carolina as amended, and .otkt f ap . oble Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Keen Transport, Inc.
Keen Transport
3350 Temple School,Rq 4 ,Winston-Salem, Forsyth County
`FORS THE,
construction, operation and maintenance of a wet detention pond in compliance with
the provisions of 15A NCAC 2H .1000 and S.L. 2006-246 (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 5, 2020, and shall
be subject to the following specified conditions and limitations:
1. DESIGN STANDARDS
1. This permit is effective orily,;witf 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 272,250 square feet of
impervious area.
3. The tract will be limited to;#kie;afriqunt `of built -upon area indicated on page 3 of
this permit, and per approve `pla'ds. `
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.
t;. Pa�e 116f, 6

I
State Stormwater Permit
Permit No.SW4111201
6. The following design criteria have been provided in the wet detention pond and
must be maintained at design condition:
a. Drainage Area, aSres: 11.8
Onsite, ft : 514,159
Offsite, ft2: 0
b. Total Impervious Surfaces,
Buildings ft2.jt
„ _. „+�.�i n j ��_.: ' 72$:
Roads/Parking, ftz:
Other, ft2: 250,399 (including sidewalks)
Offsite, ft2: 0
C. Pond Depth, feet: 3'
d. TSS removal efficiency: 85%
e. Design Storm: 1.0 inch
f. Permanent Pool Elevation, FMS�: 887.50
g. Permitted Surface Area @PP ft : 19,509
h. Permitted Storage Volume, ft�: 24,154 at temporary pool
i. Storage Elevation,,FMSL: 888.60
j. Controlling Orifice: : 2.5"0; pipe
k. Permanent Pool Volume, ft38Q=
I. Forebay Volume, ft3:
m. Receiving Stream/River Basin:: <r South..Fork Muddy Creek J Yadkin
n. Stream Index Number: 12-94013
o. Classification of Water Body: "C"
II. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall.be constructed in its entirety,
vegetated and operational for it&.intendeidWs ��rior.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.
G. Mowing and revegetation of slopes, ,ands,f 6 vegetated filter.
d. Immediate repair of eroded areasJ-,•Y,; --..' :
e. Maintenance of all slopes in accordance with approved plans and
specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow
spreader, catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must:be:;keO,.and made available upon
request to authorized personnel, of:,D.W;Q;,'.The:records will indicate the date,
activity, name of person. performing t�li ;; o; "and what actions were taken.
5. 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.
Page 2 of 6

State Stormwater Permit
Permit No.SW4111201
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
tthose
y deviations.
7. If the stormwater system was'used:as„ah Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of tfie•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 approvedplans; ;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 p ip ing 1 of: any vegetative conveyance shown on the
approved plan.
10. The permittee shall submit'46all'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_permiftee when.the permitted site does not meet one
or more of the minimum regrajre en.ts: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 meeUrninimum 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
1. 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, to the Division of Water
Quality, signed by both parties, and accompanied by supporting documentation
as listed on page 2 of the form:Jh,,p; project must be in good standing with the
Division. The approval of this requett;rrvill'b6 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 the transfer request.
Page 3 of 6

State Stormwater Permit
Permit No.SW4111201
3. Failure to abide by the conditions .and-limiti t� ht't6ontained in this permit may
subject the Permittee to enforcement'ladtiis��t yl`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 Permitte6,�sh6l; `aka jmmediate corrective action,
including those as may be required=by th-1s bivas on, such as the construction of
additional or replacement storrnwater;rraag�ment 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 DesignrNMnd'al ' :
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.1 DDD, and:,NCGS;;.143,=215.1 et.al.
11.The permittee shall notify the Divi'sion'df`4h,` `'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 6th day of January, 2012.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

+� State Stormwater Permit
Permit No.SW4111201
Keen Transport
Stormwater Permit No. SW4111201
Fors h Count
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,
Keen Transport
(Project)
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 pla"m and''specification:
SEAL
Signature
Registration Number
Date
Page 5 of 6

State Stormwater Permit
Permit No.SW4111201
Certification Requirements:
' r
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 assocj-81 {#hs}l e 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.
9. Vegetated slopes are no steepe'i:fh'eri`;';1F. `
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,re ;correctly sized per the approved plans.
13. All required design depths' areprouided .'
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
Please submit this Designer's Certification to: Winston Salem Regional Office
Surface Water Protection
585 Waughtown Street
Winston Salem, NC 27107
Pag , 6, 0fi 6

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
xas -X311Zc
I sty we
Applicable Rules: ❑ Coastal SW - 1995 ❑ Coastal SW - 2008 ❑ Ph 11 - Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This fornr tiiay be photocopied for rise as air original
1. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, letters, operation anti maintenance agreements, etc.):
Keen Transport
2. Location of Project (street address):
3350 Temvle School Road
City: Winston-Salem, NC County:Forsyth 7-ip:27107
3. Directions to project (from nearest major intersection):
From intersection of U.S. 311 and Union Cross Road, go 0.3 miles north on Union Cross Road and turn left on
High Point Road. Co 0.7 miles and turn right on Temple School Road. go 0.4 miles to Project on the left.
4. Latitude:36° 03' 27" N Longitude:80° 07' 44" W of the ma�Qtrance to the p
2 2n,t
II. PERMIT INFORMATION: DENR QU
1. a. Specify whether project is (check one): NNew []Modification ,wn
Modification 4EILA, 5r
-H
b. If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) , and the status of
construction: ❑Not Started El Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, N/A and the previous name of the project, if different than currently
proposed,
4. a. 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: 12.05 ac of Disturbed Area
❑NPDES Industrial Stormwater 0404/401 Permit: Proposed Impacts
b. If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:The Erosion Control Plan submittal has been made. CAMA and
404/401 permits do not apply.
RECEIVED
N,C.Dent. of FIR
NOV 3 0 2011
Form SWU-l01 Version 07.Iun2010 Pale I of6 Winston-SaleM
Regional Offico

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/Organization; Keen Transport, Inc.
Signing Official & Tide: William R. Keen - President
b. Contact information for person listed in item 1 a above:
Street Address:
City:
State:
Zip:
Mailing Address (if applicable):P. O. Box 389
City: New Kingstown State:PA Zip:17072
Phone: [phone] Fax: f
Enlail:Bill.Keen« keentransport.com
Please check the appropriate box. The applicant listed above is:
®The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (Phis is the
person who owns the property that the project is located on):
Property Owner/Organization:
Signing Official & Title:
b.Contact information for person listed in item 2a above:
Street Add
City:
Mailing Address (if applicable):
City:
Phone:
Email:
State:
State:
Fax: (
Zip:
Zip:
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person/ Organization:Tom Sheedy, Keen Transport - S.F. Regional Manager
Signing Official & Title:William R. Keen - President
b.Contact information for person listed in item 3a above:
Mailing Address:101 Norwest Court
City: Pooler State:GA Zip:31322
Phone: [phone] l xt. 30.10 1�ax:
ltiiail:Tom.Sheedy@keeiitr,iiisi2ort.coni
4. Local jurisdiction for building permits: City of Winston-Salem
Point of Contact: Bucky Frye Phone #: [phone]
I-ornti SWU-101 Version 07Jun2010 Page 2 of 7

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater runoff from concrete pavement, gravel pavement, rooftop and vegetated areas will be collected in
a piped drainage system and conveyed to a wet detention pond.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUD Approval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph 11 - Post Construction
3. Stormwater runoff from this project drains to the Yadkin River basin.
4. Total Property Area: 15.43 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area:.54 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) -Total Surface Water Area (6) = Total Project
Area*:14.9 acres
Total project area shall be calculated to exclude fire following the normal pool of impounded structures, tire area
between the banks of streams and rivers, the area below the Normal Hi li Water (NHW) lime or Meati High Water
(MHW) lute, and coastal zvetlands iatufward from the NHW (or MHI) litre. Tire resultant project area is used to
calculate overall percent built xpont area (BUA). Non -coastal zuetlanrds landward of the NHW (or MHW) litre array
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 42
9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered
storrrrwater BMP. For loco detrsihj and other projects, rise 1 for fire whole properhj area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
I=onn SWU-101 Version 07Jun2010 Page 3 of 7

C." t-'J
Basin Information
Drainage Area 1
Drainage Area
Draina zc Area _
Drainage Area
Receiving Stream Name
South Fork
Muddy
Creek
Stream Class
C
Stream Index Number *
12-94-13
Total Drainage Area (so
450,410
On -site Drainage Area (so
450,410
Off -site Drainage Area (so
0
Proposed Impervious Area** (so
272,250
% Impervious Area`* total
60.44
Impervious— Surface Area
Draina c Area`'Draina
>e Area
Drainage Area _
Drainage Area _
On -site Buildings/Lots (so
1,728
On -site Streets (so
12,583
On -site Parking (so
7,625
On -site Sidewalks (so
-1,375
Other on -site (so
248,939
Future (so
0
Off -site (SO
.0 .:.
Existing BUA*** (so
0..
"Total (so:
1272;25b .
* Stream Class and Index Number can be determined at: ltffl,;/fir. rlrrl.rrr'rl rtr.r r,/zt c(�/zt <r/1rti/�': rr/rl t;:rif it rrtit rr:
** Imppervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
"Report only that amount of existing BUA that will remain after development. Do not report any existing BIJA that
is to be removed and which will be replaced by rein BUA.
11. I -low was the off -site impervious area listed above determined? Provide documentation. N/A
Projects in Union County: Clf17tCICl Ut7%Q CetNrul Qjfice sufff•to check r/'Ihe project is located rrilhin a Thrvalened &
Endangered Species watershed that rrrrrr he subject to r=wre.si ingenl stornnl•ater requirements as per A'CrIC 0213 •0600.
V. SUPPLEMENT AND O&M FORMSt;
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each 13MP specified fcir this project. The latest versions of the forms can be downloaded
from I�ttt�://portal.nt di r�r.nrn_cb/t�q/��s/su/hn}}� rnanoal.
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. A detailed application instruction sheet and BMP
checklists are available from htt//}�ortal,r�ciicrtr.or /w�h/�tii}/�rs/tiu/clap sav/loans flocs. The complete
application package should be submitted to.the appropriate DWQ Office. ('The appropriate office may be
found by locating project on the interactive online'-niap at `ins://}�urtiil,ncclenr.nr ti` eh/t�'it/t� sjstr/TiLa s.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from hltt�://t�ortal.nccicnr.cr/�4c b/��/tti5/so/states+ /fnrr3�s_dr)CS ,
Initials
1. Original and one copy of the Stormwater Management Permit Application Dorm.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Dorm. (if required as per Dart V11 belozo)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M
agreement(s) for each BM13.
4. Permit application processing fee of $505 payable'to`NCDENR, (For an Express review, refer to
http://www.cnvhclp.org/pt��c s/oncstopexpress }itml for information on the taxpress program
Form SWU-101 Version 07Jun2010 ,, I'"ige 44'of7

Basin Information
Draina e Area 1
Draina e Area
Draina e Area _
Draina e Area _
Receiving Stream Name
South Fork
Muddy
Creek
Stream Class *
C
Stream Index Number *
12-94-13
Total Drainage Area (sf)
-4474-59-
4-O' Wf iv
On -site Drainage Area (so
- 54474-54—
45D, J(o
Off -site Drainage Area (so
0
Proposed Impervious Area** (so
272,335
% Impervious Area** total
-52-.37—
Im ervious" Surface Area
Drainage Area _
Drainage Area _
Drainage Area _
Drainage Area _
On -site Buildings/Lots (so
1,728
On -site Streets (so
12,583
On -site Parking (so
7,625
On -site Sidewalks (so
1,375
Other on -site (so
4--
2 S,gS j
Future (so
0
Off -site (so
0
Existing BUA*** (so
0
Total (sf):
-2- 3 -
117Z �SC�
Stream Class and Index Number can be determined at: http.-Ilportal.?inleiir.orgl/ i )ebAv0?.,;1csi i1class ifi ca tiot is
lip pervious area is defined as fire built upon area including, bid not litnited to, buildings, roads, parking areas,
sizllezoalks, gravel areas, etc.
Report only that aniount of existing BLIA that will remain after development. Do not report any existing BLIA that
is to be removed and zohich will be replaced by nezu BLIA.
11. Flow was the off -site impervious area listed above determined? Provide documentation. N/A
Prajects in Union County: Contact UIVQ Central Office slgf to check if the project is located ivilhirn a I hreatened ct
Endangered Species watershed That maY he subject to more stringent stormiraler requirements as per i1'GI C 0213.0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater managenie nt permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from htt>_)://12ortaLncdenr.org/web/i-,,d/ws/su/bmp-manual.
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. A detailed application instruction sheet and BMP
checklists are available from httl?://portal.ncdennorg/web/wq/ws/su/statesw/forms does. The complete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online reap at htt://yortal.ncdenr.ors/tveli/uij/ws/su/maw.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from http7//portal.ncdennorg/web/wrcl/ws/su/statesw/forms does.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part Vl! below)
3. Original of the applicable Supplement Dorms) (sealed, signed and dated) and O&M
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
littk)://www.envhelp.oLg/pages/oiiestc)pexpress.i)tmi for information on the Express program
Fonn SWU-101 Version 07Jrrn2010 Page 4 of 7

and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. if the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within'/z mile of the site boundary, include the'k
mile radius on the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (scaled, signed, & dated), including:
a. Development/ Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
eaters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MI-IW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"x11" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration 13MPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate,
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifij the SHVVT' prior
to suibinittal, [phone].)
10. A copy of the most current property deed. Deed book: 3026 Page No: 710
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item 1a, 2a, and/or 3a per NCAC 21-1.1003(e). The
corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
htt�/w,tivw.secretarystate.nc.us/Corporations/CSearch.as x/%vtivw.secretarystate.nc.us/Corporations/CSearch.as x
Form SWU-101 Version 07.Iun2010 Page 5 of 7

VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. if lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from
http://portal,ncdenr.org/web/wq/wsZsuZst,itesw/forms does. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, 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 sate of any lot.
VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer: I. Neal Tucker, P.E.
Consulting Firm: Stimmel Associates, P.A.
Mailing Address:601 N. Trade St. Suite 200
City: Winston-Salem State:NC Zip:27101
Phone: (336 ) 723-1067 Fax: (336 ) 723-1069
Email:[e-mail]
IX. PROPERTY OWNER AUTHORIZATION (if Coti fact Information, item 2 has been filled otrt, complete this
section)
1, (print or type name of person listed in Contact Information, item 2n) certify that I
own the property identified in this permit application, and thus give permission to (print or type tiaine of person
listed in Contact Information, item in) with (print or hfpe name of organizatioti listen in
Contact Information, item Ia) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SWU-101 Version 07Jun2010 Page 6 of 7

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment
facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid
permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including
the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Signature: Date:
do hereby certify that
a Notary Public for the State of , County of
personally appeared
before me this _ day of , and acknowledge the clue execution of the application for
a stormwater permit. Witness my hand and official seal,
SEA L
My commission expires
X. APPLICANT'S CERTIFICATION
1, (print or type naxie of person listed in Contact Information, iteln Ia) William R. Keep
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 the
applicable stormwater rules under 15A NCAC 2H .1000, SL 2006-246 (Ph. 11 - Post Construction) or SL 2008-211.
csignature W �ate\V?
1.%P_ - , a Notary Public for the State of PIP tv/J4VIVA P-1A , County of
C6 LA n.r,� do hereby certify that W L64w,L A?,d 4'rJ personally appeared
before me this _Lf- clay of /Vnu orA_se rt C-10I! , and ack rvI dge the due exec, utiyln of the application for
a stormwater permit. Witness my hand and official seal, 1 -f'//1 �p�
SEAL
�cusofl Sw1
geb�n f. Kallsr !► Cow+ty
�Alddles�* Twp., Cwinb� 012 ..
My commission expires
Fonn SWU-101 Version 073un2010 Page 7 of

.7
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f tcne irtil Oi h
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.� tifMNfw �LZ��A[��/IV✓ y.lT'M� ks�fi�{fit
S 14: N F 4alt 40,0" >43

Permit Numbcr:
(to be prorrtled by DWQ)
Drainage Area Number:
Wet Detention Basin 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 BMI' 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.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check ogre):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
— Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
— No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
-- Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
— If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected 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 should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present,
Remove the trash debris.
The perimeter of the wet
Areas of bare soil and/or
Regrade the soil if necessary to
detention basin
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 al2prication.
Vegetation is too short or too
Maintain vegetation at a height of
long.
a proxim tely six inches.
Forst SW401-Wet Detention Nisin O&M-Rev.4 Pagc 1 ol'4

Permit Number:
(to be pro i,ided by DwQ)
Drainage Area Number:
SMP element:
Potential roblem:
How i will remediate theproblem:
The inlet device: pipe or
The pipe is clogged.
Unclog the pipe. Dispose of the
swale
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
Swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
dispose of it in a location where it
will not cause impacts to streams or
the BMP,
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. If pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
Living.
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.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying.
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design sediment
possible. Remove the sediment and
storage depth,
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
Remove the plants by wiping there
invasive plants cover 50% of
with pesticide (do not spray).
the basin surface.
Form SW401-Wet Detention Basin O&M-Rev.4 Page 2 of 4

Permit Number:
(to be provided by D0,Q)
Drainage Area Number:
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs have started to grow
Remove shrubs immediately.
on the embankment.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 9i 9-733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 3.50 feet in the main pond, the
sediment shall be removed.
When the permanent pool depth reads 3.50 feet iu-i the forebay, the sediment
shall be removed.
` BASIN DIAGRAM
(Jill in the blanks)
0 Permanent fool Elevation 887.50
Sediment Removal E . 884.00 Pe manen Pool
---------------- Volume Sediment Removal E;levalion 884.00 Volume
Bottom Elevatiot 883.00 ft Min.------------------------------------- - - - - -- - - - - - -
Sediment Bottom Elevation 883.00
Storage Sediment
Storage
F0ItEBAY ilA1N POND
Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4

Permit Number:
0o be p,-oviele(l by, DTVQ)
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.
Project name:Keen Transport
BAIP drainage area number: 1
Print name: William R. Keen
Title:
Address: P.O. Box 389, New Kingstown, PA 17072 _ ..
Phone: (717) 214-
StTnature
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
PO &,%/ P• %o j4c(2 -� , a NoNo ary Public for the State of
PP+ltv LIA) NCounty of Cti Qo,A�-A A , do hereby certify that
W , L 6 A­�_ P-- e,-J personally appeared before the this a 9
day of 0,WPw- (,.e l=— , � o i l , and acknowledge the due execution of the
Forgoing wet detention basin maintenance requirements
9), A
Witness my hand and official
ShAL
porar+oi Saa+
My commission expires F. KDOW If,HGOWT P
Vsk 0=1M Co�mbMkkfts" I*
do" jxpw s Feb, 1 ?. ,4412
rrvanw,w.oc►d�on
Form SNV401-Wet Detention Basin O&,M-Rev.4 Page 4 of 4

r

Permit No,
(to be provided by Dw0)
��
apF W A7E9Q
NCDENR
� r
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part III) must be pnhted• filled out and submitted along with all of the required information.
1; P.ROJECT:INFORMATION '
Project name Keen Transport
Contact person J. Neal Tucker, RE,
Phone number 336.723.1067
Date 11129011
Drainage area number 1
II. DESIGN INFORMATIONu:
Site Characteristics
Drainage area 450,410 fe
Impervious area, post -development 272,250 ft
% impervious 60.44 %
Design rainfall depth 1.0 in
Storage Volume: Non -SA Waters
Minimum volume required 23,833 ft1 OK
Volume provided 24.154 ft1
• OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1,5" runoff volume ft3
Pre -development 1-yr, 24-hr runoff ft3
Post -development 1-yr, 24-hr runoff ft'
Minimum volume required ft3
Volume provided tt3
Peak Flow Calculations
Is the pretpost control of the 1 yr 24hr storm peak flow required?
Y (Y or N)
1-yr, 24-hrrainfall depth
2.8 in
Rational C, pre -development
` (unitless)
' See Narrative for PrelPosl Calculations
Rational C, post -development
' (unitless)
Rainfall Intensity: 1-yr, 24-hr storm
' inlhr
OK
Pre -development 1-yr, 24-hr peak flow
12.01 Wfsec
Post -development 1-yr, 24-hr peak flow
1.47 klisec
t
Pre/Post 1-yr, 2441r peak flow control
-10.55 ft'fsec
`',�titi
,
���ri��r}, Jig
Elevations
f
S%��
Temporary pool elevation
888.60 fmsl
z
Permanent pool elevation
887.50 fmsl
w
Q
SHWT elevation (approx. at the perm. pool elevation)
of 10ft vegetated shelf elevation
891.00 fmsl
888.00 fmsl
=
; 5
4 JQAB� ,Top
Bottom of 1 Oft vegetated shelf elevation
887.00 fmsl11�1
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
884.00 fmsl
883,00 fmsl//
Sediment storage
1.00 ft
gltfrlt'%�+``,``
provided
Is there additional volume stored above the state -required temp. pool?
N {Y or N)
Elevation of the lop of the additional volume fmsl
Form SW401-Wet Detention Basin-Rev.8-9117109 Pars I. & II. Design Summary. Page 1 of 2

Permit
(to be Provided by D WQ)
Ill. DESIGN INFORMATION
Surface Areas
Area, temporary pool
24,154 fe
Area REQUIRED. permanent pool
16,890 fe
SAIDA ratio
3.75 (unitless)
Area PROVIDED, permanent pool, A,,.,,,,,
19,509 ft' OK
Area, bottom of 1 Oft vegetated shelf, A.,,,
15.963 it,
Area, sediment cleanout, top elevation (bottom of pond), A, I j-ld
11,152 if
Volumes
Volume, temporary pool
24.154 ft 3
OK
Volume, permanent pool, Vp,,,,,_,.1
59,820 ft'
Volume, forebay (sum of forebays if more than one forebay)
12,789 ft'
Forebay %of permanent pool volume
21.4% %
OK
SAIDA Table Data
Design TSS removal
90
Coastal SAIDA Table Used?
N (Y or N)
MountaiFdPiedmont SAIDA Table Used?
Y (Y or N)
SAIDA ratio
3.75 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, V,, ,�,o,
59,820 ft'
Area provided. permanent pool, A.....
19,509 fe
Average depth calculated
ft
Need 3 ft min.
Average depth used in SAIDA. dm, (Round to nearest 0.5h)
ft
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pool, A,,__,,.,
19,509 ftz
Area, bottom of 1Oft vegetated shelf, A„,,_s,w
15,963 its
Area, sediment cleanout, top elevation (bottom of pond), Ate,_ d
11,152 fe
'Depth' (distance bIw bottom of 1Oft shelf and top of sediment)
3,00 ft
Average depth calculated
3.00 ft
OK
Average depth used in SAIDA, d,,, (Round to nearest 0.5ft)
3.0 ft
OK
Drawdown Calculations
Drawdown through orifice?
Y (Y of N)
Diameter of orifice (if circular)
2.50 in
Area of orifice (if -non -circular)
in'
Coefficient of discharge (Cu)
0.60 (unitless)
Driving head (H,)
0,37 ft
Drawdown through weir?
N (Y or N)
Weir type
(unitless)
Coefficient of discharge (C„,)
(unitless)
Length of weir (L)
ft
Driving head (H)
ft
Pre -development 1-yr, 24-hi peak flow
12,01 ft Isec
Post -development 1-yr, 24-hr peak flow
1,47 ft'Isec
Storage volume discharge rate (through discharge orifice or weir)
0,10 ft'lsec
Storage volume drawdown time
2,80 days
OK, draws down in 2-5 days.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10,0 ft
OK
Length of flowpath to width ratio
3 :1
OK
Length to width ratio
1.8 :1
OK
Trash rack for overflow 8 crifice?
Y (Y or N)
OK
Freeboard provided
1.D ft
OK
Vegetated filter provided?
N (Y or N)
OK
Recorded drainage easement provided?
Y (Y or N)
OK
Capures all runoff at ultimate build -out?
Y (Y or N)
OK
Drain mechanism for maintenance or emergencies is;
8" Drain at base of Riser
Form S1N401-Wet Detention Basin-Rev.U-9117109
Parts I. 4 11_ Design Summary, Page 2 of 2

P
Permit No
III. REQUIRED ITEMS CHECKLIST
(to be provided by DWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
tial5
Sheet No.
C-3.05A
1. Mans (1" - 50' or larger) of the entire site showing:
C-3.06
Design at ultimate build out,
C-3.Q7
Off -site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin), See Report.
C-2.01
Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement. See Report.
C-5.01
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
thru
Outlet structure with trash rack or similar,
G5.08
Maintenance access,
Permanent pool dimensions,
L-01,04
Forebay and main pond with hardened emergency spillway, See Report.
L-02.01
Basin cross-section,
Vegetation specification for planting shelf, and
Filter strip, See Report.
4__
C-5.02
3. Section view of the wet detention basin (1" = 20' or larger) showing:
thru
Side slopes, 3:1 or lower,
C-5.D5
Pretreatment and treatment areas, and
Inlet and outlet structures.
C-5.01
4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
SEE INCLUDED
5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay,
CALCULATIONS
to verify volume provided.
C-5.01
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
SEE INCLUDED
7, The supporting calculations.
CALCULATIONS
SEE INCLUDED
& A copy of the signed and notarized operation and maintenance (0&M) agreement.
NIA
9. A copy of the deed restrictions (if required).
SEE INCLUDED
10. A soils report that is based upon an actual field investigation, soil borings. and infiltration tests. County
soil maps are not an acceptable source of soils information.
Form SVJ40IJJVet Detention, Basin-Rev.8-9117109
Part III. Required Items Checklist, Page I of 1

Permit No.
fro be provided by DWO)
tVW4 A llg��
A&
KDENR
Ew! C
STORMWATER
MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items CheCkfiSl
(Part 111) Must be printed, filled out and submitted along with all of the required information.
jl.,'PROJECT-INFORMATIOV
Project name
Keen Transport
Contact person
J. Neal Tucker, P.E.
Phone number
336-723-1067
Date
11129011
Drainage area number
llDESIGN INFORMATION
Site Characteristics
Drainage area
450,410 ft2
Impervious area, post -development
272,250 fe
% impervious
60.44 %
Design rainfall depth
1.0 in
Storage Volume: Non -SA Waters
Minimum volume required
23,833 ft3 OK
Volume provided
24,154 R 3 OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5" runoff volume
ft,
Pre -development 1-yr, 24-h( runoff
ft'
Post -development 1-yr, 24-hr runoff
ft'
Minimum volume required
ft,
Volume provided
ft 3
Peak Flow Calculations
Is the prelpost control of the lyr 24hr storm peak flow required?
Y (Y or N)
1-yr, 24-hr rainfall depth
2-8 in
Rational C, pre -development
(unifiess) See Narrative for PreiPost Calculations
Rational C, post -development
(unitless)
Rainfall intensity: 1 -yr, 24-hr storm
inthr OK
Pre -development I -yr, 24-hr peak flow
12.01 h'Isec
Post -development I-yr, 24-hr peak flow
1,47 h3lsac
Pre/Post 1-yr. 24-hr peak flow control
-10.55 0sec
Elevations
%
Temporary pool elevation
888.60 fmsl
Permanent pool elevation
887.50 fmsl z
SHVVT elevation (approx, at the perm. pool elevation)
891.00 fmsl SEAL
Tap of 10ft vegetated shelf elevation
888,00 fmsl
05, 14?r
Bottom of 1 Oft vegetated shelf elevation
887,00 fmsl •
Sediment cleanGut, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
884.00 fmsl
883.00 fmsl INV: -P 1(t-
Sediment storage provided
1.t}0 It
L
Is there additional volume stored above the state -required
temp. pool? N (Y or N) 111111110t
Elevation of the top of the additional volume
fmsl
Form SW401-Wet OelenliOn Basin.ROv.3-9117109 Parts I. 3. 11 Design Summary, Page 1 of 2

Permit No.
(to be provided by D WO)
q: ;DE51GN INFORMATION
Surface Areas
Area, temporary pool 24.154 fe
Area REQUIRED, permanent pool 16,890 fe
SAlDA ratio 3.75 (unitless)
Area PROVIDED, permanent pool, A,._,. 19.509 ft, CK
Area, bottom of loft vegetated shelf, A,_,,,w 15.91
Area, sediment cleanout, top elevation (bottom of pond), Atc,yo d 11,152 fe
Volumes
Volume, temporary pool
24,154 ft3 OK
Volume, permanent pool, V,,,,,,,,,
59,820 ft'
Volume, forebay (sum of forebays if more than one forebay)
12,789 ft'
Forebay d% of permanent pool volume
21.4°% % OK
SAIDA Table Data
Design TSS removal
90 °%
Coastal SAIDA Table Used?
N (Y or N)
MountainlPiedmont SAIDA Table Used?
Y (Y or N)
SAIDA ratio
3.75 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, V,,,,,,—,
59,820 ft'
Area provided, permanent pool, A, msw
19,509 ft'
Average depth calculated
ft Need 3 ft min.
Average depth used in SAIDA, d, (Round to nearest 0.5ft)
ft
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pool. Ap._p,1
19,509 ft,
Area, bottom of 10ft vegetated shelf, Ab.L_„,, 15,963 ft'
Area, sediment deanout, top elevation (bottom of pond), Ai,_ d
11,152 fe
"Depth" (distance blw bottom of 1 Oft shelf and top of sediment)
3.00 ft
Average depth calculated
3.00 ft
OK
Average depth used in SAIDA, d. (Round to nearest 0.5ft)
3.0 ft
OK
Drawdown Calculations
Drawdown through orifice?
Y
(Y or N}
Diameter of orifice (if circular)
2.50 in
Area of orifice (if -non -circular)
inZ
Coefficient of discharge (Co)
0.60 (unitless)
Driving head (1
0.37 ft
Drawdown through weir?
N
(Y or N)
Weir type
(unitless)
Coefficient of discharge (C„)
(unitless)
Length of weir (L)
ft
Driving head (H)
ft
Pre -development 1-yr, 24-hr peak flow
12.01 fNec
Post -development 1-yr. 24-hr peak low
1,47 ft'(sec
Storage volume discharge rate (through discharge orifice or weir)
0.10 ft'lsec
Storage volume d(awdown time
2.80 days
OK, draws down in 2-5 days.
Additional Information
Vegetated side slopes
3 :1
OK
Vegetated shelf slope
10 :1
OK
Vegetated shelf width
10.0 ft
OK
Length of flowpath to width ratio
3 :1
OK
Length to width ratio
1.8 :1
OK
Trash rack for overflow & orifice?
Y
I or N)
OK
Freeboard provided
1.0 ft
OK
Vegetated filter provided?
N
(Y or N)
OK
Recorded drainage easement provided?
Y
(Y or N)
OK
Capures all runoff at ultimate build -out?
Y
(Y or N)
OK
Drain mechanism for maintenance or emergencies is:
8" Crain at base Df Riser
Form SW401-Wel Detention Basin-Rev.9-911770E
Parts I. % II, Cesign Surnmarr, Page 2 of 2

Permit No
Jill. REQUIRED ITEMS CHECKLIST
(to be provided by DWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package w0l
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
itials
Sheet No.
C-3.05A
i. Plans (1" - 50' or larger) of the entire site showing:
C-3.06
Design at ultimate build -out,
C-3,07
Off -site drainage (if applicable),
-Delineated drainage basins (include Rational C coefficient per basin), See Report.
C-2,01
Basin dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Proposed drainage easement and public right of way (ROW),
Overflow device, and
Boundaries of drainage easement. See Report.
9lK,
C-5.01
2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing:
thfu
Outlet structure with trash rack or similar,
C-5.08
Maintenance access,
Permanent pool dimensions,
L-01.04
Forebay and main pond with hardened emergency spillway, See Report.
L-02.01
Basin cross-section,
-Vegetation specification for planting shelf, and
-Filter strip. See Report.
C-5.02
3. Section view of the wet detention basin (1" = 20' or larger) showing:
thru
Side slopes, 3:1 or lower,
C-5.05
Pretreatment and treatment areas, and
Inlet and outlet structures.
C-5.01 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin.
SEE INCLUDED 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay,
CALCULATIONS to verify volume provided.
C-5.01
6. A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized.
SEE INCLUDED
7. The supporting calculations.
CALCULATIONS
SEE INCLUDED
g. A copy of the signed and notarized operation and maintenance (0&M) agreement.
N/A
9. A copy of the deed restrictions (if required).
�p(
SEE INCLUDED
10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County
U—
soil maps are not an acceptable source of soils information.
Form SW401-Wet Detention Basin -Rev.8-9fl7109
Par-, III. Requirec Items Checklist. Page i of i