SW4110301_HISTORICAL FILE_20140313

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW 4 11 o --;_p j
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
DOC DATE
zo 1 +0313
YYYYMMDD

Taylor -Smith, Aana
From:
Taylor -Smith, Aana
Sent:
Thursday, March 13, 2014 2:28 PM
To:
[e-mail]
Subject:
Dollar General Thomasville Road, NC
Attachments:
DG Thomasville Road NOV.pdf
Mr. Reina,
We recently received a returned Notice of Violation (NOV) letter that was sent on January 31, 2014 to your address at
710 Amsterdam Avenue No. 1-A in NY, NY. The NOV cited violations of the State Stormwater Management Permit
SW4110301 for the Dollar General site on Thomasville Road in Forsyth County, North Carolina. I have attached a copy of
the NOV for your records, just to make sure that you have it.
Since the time that letter was sent, repairs have been made to the site and it is now in compliance. No further work
needs to be done at this time. An inspection letter was sent notifying you that the site has been inspected and found to
be in compliance. The NOV has been closed. We thank you very much for your attention to this matter and commitment
to protecting the environment. Please do not hesitate to contact me at any time with any questions or concerns you
may have.
Thank you, and have a wonderful week!
Aana Taylor -Smith
Land Quality Section
Division of Energy, Mineral, and Land Resources
NC DEN Winston-Salem Regional Office
Phone: [phone]
Fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Low and may be disclosed to
third parties.

■ "A'R4
k I +
NCD N V
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Land Quality Section
Tracy E. Davis, PE, CPM • Pat McCrory, Governor
Director John E. Skvarla, 111, Secretary
January 31, 2014
CERTIFIED MA[L, 97013 1710 0002 1771 539I
RETURN RECEIPT REQUESTED
Mr. Khristopher Reina, Managing Member
DG Winston-Salem, LLC
710 Amsterdam Avenue, No. 1-A
New York, NY 10025
Subject: NOTICE OFINSPECTIONAND RESULTING NOTICE OF VIOLATION
Thomasville Road Dollar General
Permit No. SW4110301
NOV# NOV-2014-PC-0020
Forsyth County
Dear Mr. Reina:
On January 31, 2014, Aana Taylor -Smith of the Winston-Salem Regional Office of the Division of Energy,
Mineral, and Land Resources (DEMLR) inspected the Thomasville Road Dollar General site in Forsyth County to
determine compliance with Stormwater Management Permit Number SW41 10301 issued on March 30, 2011. The
previous inspection on November 1, 2013, found that the site was not compliant, as noted in the letter dated
November 7, 2013. Requested action items listed in that letter have not been completed, and this DEMLR site
inspection revealed that the site is still not compliant with the terms and conditions of this permit.
The following items were noted during the inspection and require action:
1. Erosion near the inlet, spillway, and outlet of the detention basin must be repaired.
2. Excess sediment and vegetation must be removed from the basin and disposed of properly.
3. Keep detailed records of all maintenance and submit to this office upon completion.
Please refer to the Operation and Maintenance Agreement and/or NC DENR Stormwater Best Management
Practices (BMP) Manual for guidance. The BMP Manual call be found at the following website:
http://portal.iiedenr.orWweb/wq/ws/sulbrnp-manual
All necessary repairs must be conducted within 30 days of receiving this letter. DEMLR staff will conduct a
follow-up inspection at that time. Please find a copy of the completed form entitled "Compliance Inspection
Report" attached to this letter.
Be advised that you are required to comply with the terms, conditions and limitations of your Stormwater
Management Permit under Title 15A North Carolina Administrative Code 2H .1003 and North Carolina General
Statute 143-214.7, including operation and maintenance of your permitted stormwater system.
Winston-Salem Regional Office
585 Waughtown Street, Winston-Salem, NC 27101 a Phone: [phone] I FAX: [phone]

Thomasville Road Dollar General
January 31, 2014
Page 2 of 2
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If the project has changed name, ownership or mailing address, a formal change of name/ownership form must be
submitted to DEMLR within 30 calendar days detailing the change. Please provide the name, mailing address and
phone number of the person or entity that is now responsible for this permit.
Thank you for your attention to this matter. Pursuant to G.S. 143-215.6A, these violations and any future
violations are subject to a civil penalty assessment of up to a maximum of $25,000.00 per day for each
violation. Your above -mentioned response to this correspondence, the degree and extent of harm to the
environment and the duration and gravity of the violation(s) will be considered in any civil penalty assessment
process that may occur. If you have any questions, comments, or need assistance with understanding any aspect
of your permit, please do not hesitate to contact Aana Taylor -Smith or me at [phone].
FF C I A L U
Postage $ NU
Certified Fee N14/ ` 20 14 PC L)L)2
Postmark
Return Receipt Foe Here
(Endo(sement Required)
Restricted Delivery Fee
(Endorsement Required)
-- I d� --': ( I _
Mr. Khristopher Reina
DG Winston-Salem, LLC
710 Amsterdam Avenue, No. 1-A --------------------
New York, NY 10025
Enclosure: Compliance Inspection Report
Sincerely,
Matthew E. Gantt, P
Regional Engineer
Land Quality Section
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cc: WSRO Files
Karen Higgins — Wetlands, Buffers, Stormwater Compliance & Permitting Unit
DWR Central Files

Compliance Inspection Report
Permit: SW4110301 Effective: 03/20/11 Expiration: 03/19/21 Owner: Dg Winston-Salem LLC
County: Forsyth
Region: Winston-Salem
Contact Person: .Tab Patton
Directions to Project:
Type of Project: State Stormwater - General Permit
Drain Areas:
On -Site Rep rosentative(s):
Related Permits:
Title:
Inspection Date: 01131/2014 EntryTime: 10:15 AM
Primary Inspector: Aana Taylor -Smith
Secondary Inspector(s):
Reason for Inspection: Follow-up
Permit Inspection Type: State Stormwater
Facility Status: n Compliant ® Not Compliant
Question Areas:
® State Stormwater
(See attachment summary)
Project: Dollar General - Thomasville Road
Thomasville Rd NC 109
Winston Salem NC 27107
Phone: [phone]
Exit Time: 10:30 AM
Phone: [phone]
Inspection Type: Compliance Evaluation
Page: 1

Permit: SW4110301 Owner - Project: Dg Winston-Salem LLC
Inspection Date: 01/31/2014 Inspection Type: Compliance Evaluation Reason for Visit: Follow-up
Inspection Summary:
Please see attached inspection letter (NOV).
Page: 2

Permit: SW4110301 Owner - Project: Dg Winston-Salem LLC
Inspection Date: 01/31/2014 Inspection Type: Compliance Evaluation
Reason for Visit:
Follow-up
File Review
Yes
No
NA
NE
Is the permit active?
®
n
n
n
Signed copy of the Engineer's certification is in the file?
®n
n
n
Signed copy of the Operation & Maintenance Agreement is in the file?
®
n
n
n
Copy of the recorded deed restrictions is in the file?
®❑
D
n
Comment:
Built upon Area
Yes
No
NA
NE
Is the site BUA constructed as per the permit and approval plans?
an
n
n
Is the drainage area as per the permit and approved plans?
®
n
n
Q
Is the BUA (as permitted) graded such that the runoff drains to the system?
®
n
n
n
Comment:
1_1AJ
Y
N
NA
Ni=
Are the SW measures constructed as per the approved plans?
Are the inlets located per the approved plans?
Are the outlet structures located per the approved plans?
Comment:
Operation and Maintenance
Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? n m D Q
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ 0 ® ❑ Cl
upon request?
Comment: 1. Erosion near the inlet, spillway, and, outlet of the detention basin must be
repaired.
2. Excess sediment and vegetation must be removed from the basin and disposed of
properly.
3. Please keep records of maintenance and submit to DEMLR upon completion.
Other Permit Conditions
Is the site compliant with other conditions of the permit?
Comment:
Other WQ Issues
Is the site compliant with other water quality issues as noted during the inspection?
Comment: Improper maintenance of measures could lead to failure of BMP.
Yes No NA NE
® n n n
Yes No NA NE
n®nn
Page: 3

P-&Cl ►21101/13
W SIB
State of North Carolina ��AA�
Department of Environment and Natural Resources
Division of Water Quality
STATE STORMWATER PERMIT NAME/OWNERSHIP CHANGE FORM
I. CURRENT PERMIT INFORMATION
1. Stormwater Management Permit Number: SW4110301
2. Project Name: Thomasville Road Dollar General
3. Current Permit Holder's Company Name/Organization: Patton Development co Inc _
4. Signing Official's Name: jab Patton
5. Mailing Address: Po Box 100
City: Woodruff
6. Phone: ( 864 ) 476-9990
Title. President
State: sc Zip
Fax: ( 864 ) 476-9991
29388
II. PROPOSED PERMITTEE / OWNER / PROJECT 1 ADDRESS INFORMATION
This request is for: (please check all that apply)
❑ Name change of the owner (Please complete Items 1, 2 and 3 below)
❑ Name change of project (Please complete Item 5 below)
2 Change in ownership of the property/company (Please complete Items 1, 2, 3, and 4 below)
❑ Mailing address / phone number change. (Please complete Item 4 below)
❑ Other (please explain):
1. Proposed permittee's company name/organization: AG Wins{ Su(�,,, , LLC
2. Proposed permittee's signing official's name: Yl.c�sh��
3. Proposed permittee's title: +A&vt,, ^ j niew,6er
4. Mailing Address: 710 Ams der dao, Avin.g_,
City: State: �! _Zip: i oo z
Phone:( ) 07- 501 Fax: ( } re A Q r� w
5. New Project Name to be placed on permit:
Please check the appropriate box. The proposed permittee listed above is:
❑ HOA or POA (Attach documentation showing that the HOA or POA owns, controls, or has a
recorded easement for all areas tAat contain stormwater system features. Print name of HOA or
POA in #1 above and provide name of HOA/POA's authorized representative in #2 above)
® The property owner
❑ Lessee (Attach a copy of the lease agreement and complete Property Owner Information on
page 4)
❑ Purchaser (Attach a copy of the pending sales agreement. Final approval of this transfer will be
granted upon receipt of a copy of the recorded deed)
❑ Developer (Complete Property Owner Information on page 4)
SSW N/O Change Rev24Sept2012 Page 1 of 4

III. REQUIRED ITEMS
A request to transfer a permit will not be approved by the Division of Water Quality (DWQ) unless all
of the applicable required items listed below are included with the submittal. Failure to provide the
listed items may result in processing delays or denial of the transfer.
1. This completed and signed form.jThis certification:musfbe completed and"signed:by both the.
current permit holder and_tho new applicant if th_is is a change of_ownership:
2. Legal documentation of the property transfer to a new owner.
3. A copy of any recorded deed restrictions, covenants, or easements, if required by the permit.
4. The designer's certification (DWQ Engineer and Designer Certification Forms are available from
each DWQ Regional office), if required by the permit and if not already submitted to DWQ.
5. If the proposed permittee is a firm, partnership, association, institution, corporation, limited liability
company, or other corporate entity, provide documentation showing the authority of the named
representative to act on behalf of the proposed permittee.
6. The $40.00 processing fee. If this is an initial transfer from the original permittee the processing
fee is not required. Subsequent ownership transfers will require the $40.00 processing fee.
IV. CURRENT PERMITTEE'S CERTIFICATION
Please check one of the following statements and fill out the certification below that statement:
❑ Check here if the current permittee is only changing his/her/its name, the project name, or mailing
address, but will retain the permit. I, , the current
permittee, hereby notify the DWQ that I am changing my name and/or I am changing my mailing
address and/or I am changing the name of the permitted project. I further attest that this application
for a name/ownership change is accurate and complete to the best of my knowledge. I understand
that if all required parts of this application are not completed or if all required supporting information
and attachments listed above are not included, this application package will be returned as
incomplete.
® Check here if current permittee is transferring the property to a new owner and will not retain
ownership of the permit.
1, Patton Development Co -In , the current permittee, am submitting this application
for a transfer of ownership for permit # SW4110301 . I hereby notify DWQ of the sale or
other legal transfer of the stormwater system associated with this permit. I have provided a copy of
the most recent permit, the designer's certification for each BMP, any recorded deed restrictions,
covenants, or easements, the DWQ approved plans and/or approved as -built plans, the approved
operation and maintenance agreement, past maintenance records, and the most recent DWQ
stormwater inspection report to the proposed permittee named in Sections 11 and V of this form. I
further attest that this application for a name/ownership change is accurate and complete to the best
of my knowledge. I understand that if all required parts of this application are not completed or if all
required supporting information and attachments listed above are not included, this application
package will be returned as incomplete. I assign all rights and obligations as permittee to the
proposed permittee named in Sections 11 and V of this form. I understand that this transfer of
ownership cannot be Woved by the DWQ unless and until the facility is in compliance with the
permit.
Signature: Date: W Q Q 460
1, _ I Lai jQ�a Notary Public for the State of
u n rtln �j (& , County of do hereby certify that
personally appealed before me this the
0_[_�_, and acknowledge the due execution of the
al seal, (Notary Seal)
SSW N/Q Change Rev24Sept2012 Page 2 of 4

V. PROPOSED PERMITTEE CERTIFICATION: (This section must be completed by the
Proposed Permittee for all transfers of ownership)
G
1, KAris46 4u Rey of 464,1f�- 1iCrUi4Wm, e,/&1' hereby notify the DWQ that I have acquired
through sale, lease or legal transfer, the responsibility for operating and maintaining the permitted
stormwater management system, and, if applicable, constructing the permitted system. I
acknowledge and attest that I have received a copy of: (check all that apply to this permit)
R
the most recent permit
✓✓ the designer's certification for each BMP
❑ any recorded deed restrictions, covenants, or easements
gthe DWQ approved plans and/or approved as -built plans
the approved operation and maintenance agreement
❑past maintenance records from the previous permittee (where required)
DWQ stormwater inspection report showing compliance within 90 days prior to this transfer
I have reviewed the permit, approved plans and other documents listed above, and I will comply with
the terms and conditions of the permit and approved plans. I acknowledge and agree that l will
operate and maintain the system pursuant to the requirements listed in the permit and in the
operation and maintenance agreement. I further attest that this application for a name/ownership
change is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed or if all required supporting information and attachments listed
above are not included, this application package will be returned as incomplete.
Signature: Date: " I.2743
a Notary Public for the State of
�-u County of `-� ti , do hereby certify that
� V-� personally appeared before me this the
,2z:�ho day of ?� t��-2 �1b�i , 20 �3 , and acknowledge the due execution of the
forgoing instrument. Witness my hand and official seal, _
JANIL M GUTIERREZ
(Not q Y tip UC, STATE OF NEW YORK
Notary nature eg�s'�{anon Rio, OIGU6270216
Qualified in'New Yo{k County
Ccmmission Expires 10f1512016
Additional copies of the original permit and the approved Operation and Maintenance agreement can
be obtained from the appropriate Regional Office of the Division of Water Quality.
This completed form, including all supporting documents and processing fee (if required), should be
sent to the appropriate Regional Office of the North Carolina Department of Environment and Natural
Resources, Division of Water Quality, as shown on the attached map.
Please note that if the Proposed Permittee listed above is not the property owner, the property owner
must complete and sign page 4 of this document. Both the lessee / developer and the property
owner will appear on the permit as permittees.
SSW N/O Change Rev24Sept2012 Page 3 of 4

VI. PROPERTY OWNER CONTACT INFORMATION AND CERTIFICATION
If the Proposed Permittee listed in Sections It and V of this form is not the Property Owner, the
Property Owner must provide his/her Contact Information below and sign this form:
Printed Name:
Organization:
Title within the Organization:
Street Address:
City:
Mailing Address:
City:
Phone:
Email:
State:
(if different from street address)
State:
Fax:
Zip:
I certify that I own the property identified in this permit transfer document and have given permission
to the Proposed Permittee listed in Sections II and V to develop and/or, lease the property. A copy
of the lease agreement or other contract, which indicates the party responsible for the construction
and/or operation and maintenance of the stormwater system, has been provided with the submittal.
As the legal property owner I acknowledge, understand, and agree by my signature below, that I will
appear as a permittee along with the lessee/developer and I will therefore share responsibility for
compliance with the DWQ Stormwater permit. As the property owner, it is my responsibility to notify
DWQ by submitting a completed Name/Ownership Change Form within 30 days of procuring a
developer, lessee or purchaser for the property. I understand that failure to operate and maintain the
stormwater treatment facility in accordance with the permit is a violation of NC General Statute
(NCGS) 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 of the property owner
, County of
day of
Date:
a Notary Public for the State of
, do hereby certify that
personally appeared before me this the
, 20 , and acknowledge the due execution of the
forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature
SSW N/O Change Rev24Sept2012 Page 4 of 4

State Stormwater Permit
Permit No. SW4110301
Dollar General
Thomasville Road NC-109
Forsyth County
Designer's Certification
as a duly registered 5 461 "tyx in the
State of North Carolina, having been authorized to observe (periodically/ weekly/
full time)'the construction of the project,,
Dollar General, Thomasville Road NC-109
- --- --- - ---- ---- — — - - . -
. (Project Name � � � -
for TTO�! "V�L lL1c� (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 0
Date _—,..._ _ Z/ L- /3
Page 1 of 2

:-1
State Stormwater Permit
Permit No. SW4110301
Certification Requirements:
/1' The drainage area to the system contains approximately the permitted
acreage.
V 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.
The outlet/bypass structure elevations are per the approved plan.
B. 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.
—79. 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.
Required drawdown devices are correctly sized per the approved plans.
_XI 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 2of2

�
PA
CDENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Land Quality Section
Tracy E. Davis, PE, CPM
Director
November 7, 2013
CERTIFIED MAIL #7013 1710 0002 1865 7645
RETURN RECEIPT REQUESTED
Mr. Tab Patton
Patton Development
P.O. Box 100
Woodruff, SC 29388
Subject: NOTICE OF INSPECTION
Thomasville Road Dollar General
Permit No. SW4110301
Forsyth County
Dear Mr. Patton:
Pat McCrory, Governor
John E. Skvarla, III, Secretary
On November 1, 2013, Aana Taylor -Smith of the Winston-Salem Regional Office of the Division of Energy,
Mineral, and Land Resources (DEMLR) inspected the Thomasville Road Dollar General site in Forsyth County to
determine compliance with Stormwater Management Permit Number SW4110301 issued on March 30, 2011.
DEMLR site inspection and subsequent file review revealed that the site is not compliant with the terms and
conditions of this permit. The following items were noted during the inspection and file review:
1. Erosion near the inlet, spillway, and outlet of the detention basin must be repaired.
2. Excess sediment and vegetation must be removed from the basin and disposed of properly.
3. Please submit a signed Engineer's Certification as required by Section Ii, Paragraph 7 of the permit.
Please refer to the Operation and Maintenance Agreement and/or NC DENR Stormwater Best Management
Practices (BMP) Manual for guidance. The BMP Manual. can be found at the following website:
http:H ortal.nedenr.orUweb/wq/ws/sti/bmp-i-naiivaI
web/wq/ws/su/bmp-manual
All necessary repairs should be conducted within 30 days of receiving this letter: DEMLR staff will conduct a
follow-up inspection at that time. Please find a copy of the completed form entitled "Compliance Inspection
Report" attached to this letter.
Please be advised that you are required to comply with the terms, conditions and limitations of your Stormwater
Management Permit under Title 15A North Carolina Administrative Code 2H .1003 and North Carolina General
Statute 143-214.7, including operation and maintenance of your permitted stonnwater system.
If the project has changed name, ownership or mailing address, a formal change of name/ownership form must be
submitted to DEMLR within 30 calendar days detailing the change. Please provide the name, mailing address and
phone number of the person or entity that is now responsible for this permit.
Winston-Salem Regional Office
585 Waughtown Street, Winston-Salem, NC 27101 o Phone: [phone] / FAX: [phone]

Thomasville Road Dollar General
November 7, 2013
Page 2 of 2
Thank you for your assistance and cooperation during this inspection. Please be advised that violations of the
Stormwater Management Permit may be subject to a civil penalty' assessment of up to $25,000.00 per day
for each violation. If you have any questions, comments, or need assistance with understanding any aspect of
your permit, please do not hesitate to contact Aana Taylor -Smith or me at [phone].
a Complete items 1, 2, and 3. Also complete
item 4 if Wtricted Delivery is desired.
■ Print youcwm6pnd address on the reverse
so that Asan ret4r'n)#he'card4. o'You.
E Attach t I e'r to the back of the�,�r ta's` ece,
or on� of nff iif--space permits.
t. Art i dressed t�
Mr.TabPat
A.
X
B.
Sincerely,
Matthew E. Gantt, PE
Regional Engineer
Land Quality Section
❑ Agent
Date of Delivery
D. Is delivery address different from item 1? ❑ Yes
If YES, enter delivery address below-. ❑ No
ca
Patton Devel dent
PO Box 100Of,1���
Woodruff, SC 29388
i
s. iceType
Fertifi.d Maii® ❑ Priority Mail Express-
egistered ❑ Return Receipt for Merchandise ;
-
-
❑ Insured Mail ❑ Collect on Delivery
4. Restricted Delivery? (Extra Fee) ❑ Yes
•7015
171D 0002 1865
7645 Sw41���5-
Ps Form 3811, July 2013
Domestic Return Receipt
Enclosure; Compliance Inspection Report
cc: WSRO Files
DWR Central Files
N
F F A LUSE I
r-1 Postage $
ni Certified Fee / S\A/ (4 1 1020i4
0 t Fog (Endorsement ReROtUrn quired) ! Postmark
ASS Here
Resldcted Delivery Fee
a fEndarsementaequired}
ri
r Total Posr•
Mr. Tab Patton
Msent o Patton Development
"srr'eaer, or Pp Boo tI PO Box 100
f ` x
cry sieie„ Woodruff, SC 29388

Compliance inspection Report
Permit: SW4110301 Effective: 03/20/11 Expiration: 03/19/21 Owner: Patton Development
Project: Dollar General - Thomasville Road
County: Forsyth Thomasville Rd NC 109
Region: Winston-Salem
Contact Person: Tab Patton Title:
Directions to Project:
Type of Project: State Stormwater - General Permit
Drain Areas:
On -Site Representative(s):
Related Permits:
Inspection Date: 11/0112013 Entry Time: 10:45 AM
Primary Inspector: Aana Taylor -Smith
Secondary Inspector(s):
Reason for Inspection: Routine
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ® Not Compliant
Question Areas:
® State Stormwater
(See attachment summary)
Winston Salem NC 27107
Phone: [phone]
Exit Time: 11:05 AM
Phone: [phone]
Inspection Type: Compliance Evaluation
Page: 1

Permit: SW4110301 Owner - Project: Patton Development
Inspection Date: 1110112013 Inspection Type: Compliance Evaluation
Reason for Visit:
Routine
Inspection Summary:
File Review
Yes
No
NA NE
Is the permit active?
®
n
n 0
Signed copy of the Engineer's certification is in the file?
n
®n
❑
Signed copy of the Operation & Maintenance Agreement is in the file?
®
n
n n
Copy of the recorded deed restrictions is in the file?
®❑
n
Comment: Permit has changed ownership. Patton Development is submitting
Name/Ownership Change form and Designer's Certification.
Built Upon Area Yes No NA NE
Is the site BUA constructed as per the permit and approval plans?
®❑
n
n
Is the drainage area as per the permit and approved plans?
®
n
n
n
Is the BUA (as permitted) graded such that the runoff drains to the system?
BOO
n
Comment:
SW Measures
Yes
No
NA
NE
Are the SW measures constructed as per the approved plans?
®
n
n
n
Are the inlets located per the approved plans?
®n
n
n
Are the outlet structures located per the approved plans?
®❑
❑
n
Comment:
Operation and Maintenance
Yes
No
NA
NE
Are the SW measures being maintained and operated as per the permit requirements?
n
®
n
n
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ n
®
❑
upon request?
Comment: Erosion has occurred near inlet, spillway, and outlet of basin. Excess
sediment and vegetation have built up in basin.
Other Permit Conditions
Yes
No
NA
NE
Is the site compliant with other conditions of the permit? M n n ❑
Comment:
Other WQ Issues Yes No NA NE
Is the site compliant with other water quality issues as noted during the inspection? ®❑ n n
Comment:
Page: 2

i
Taylor -Smith, Aana
From: Laurin Patton <[e-mail]>
Sent: Tuesday, November 05, 2013 10:41 AM
To: Taylor -Smith, Aana
Cc: Laurin Patton
Subject: RE: State Stormwater Permit - Dollar General Thomasville Rd
Thank you for checking. I'll get this back to you asap.
laurin
From: Taylor -Smith, Aana [mailto:Aana.Taylor-Smith(&ncdenr.gov]
Sent: Tuesday, November OS, 2013 10:32 AM
To: Laurin Patton
Subject: RE: State Stormwater Permit - Dollar General Thomasville Rd
Hi Laurin,
The Dollar General Thomasville Road site is the only active permit our database shows for Patton Development. There
were a few other construction stormwater permits for Eden and Ramseur sites, but they are no longer in effect.
Thanks!
Aana Taylor -Smith
Land Quality Section
Division of Energy, Mineral, and Land Resources
NC DENR Winston-Salem Regional Office
Phone: [phone]
Fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.
From: Laurin Patton [mailto:laurin thepattoncompany.com]
Sent: Tuesday, November 05, 2013 10:20 AM
To: Taylor -Smith, Aana
Cc: Laurin Patton
Subject: RE: State Stormwater Permit - Dollar General Thomasville Rd
Ok thanks! can you search our name in your system to make sure there are no more out there? There shouldn't be
at this point.
Thanks!
Laurin Patton
Patton Development Co Inc
The Patton Company LLC
From: Taylor -Smith, Aana [mailto:[e-mail]]
Sent: Tuesday, November 05, 2013 10:14 AM

To: Laurin Patton
Subject: State Stormwater Permit - Dollar General Thomasville Rd
Good morning,
I have attached the change of ownership form as well as a copy of the State Stormwater Management Permit
#SW4110301 for the Dollar General on Thomasville Road in Forsyth County, NC. When you've filled out the change of
ownership form, please mail a hard copy to the following address:
Aana Taylor -Smith
NC DENR Division of Energy, Mineral, and Land Resources
585 Waughtown Street
Winston-Salem, NC 27107
Once I receive that, I can begin making the changes to the permit. Also, please have your engineer fill out the Designer's
Certification on the last two pages of the permit and send that to me as well. See Part II, Paragraph 7 of the permit for
requirements regarding the Designer's Certification. Please feel free to contact me at any time if you have any questions
or concerns.
Thanks, and have a great week!
Aana Taylor -Smith
Land Quality Section
Division of Energy, Mineral, and Land Resources
NC DENR Winston-Salem Regional Office
Phone: [phone]
Fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Low and may be disclosed to
third parties.

1 STORMWATER MANAGEMENT AND
EROSION CONTROL DESIGN REPORT
PREPARED FOR
Thomasville Road
' Dollar General
Winston-Salem, North Carolina
OWNER:
Patton Development
PO. Box 100
' Woodruff, SC 29388
LI
0
1
I
Prepared by
K.B. SELLARS, ENGINEERING, LLC.
February 24, 2011
1
FRECEIVED
N.C. Deot. cf ENFt
APR 0 5 2011
Wins:cn�Salem
Regicnal offcC
�C�C�[�QM� DO 3 ]AL
DE
NR - VYA7E3�
► 6andL & 8&N7meotw

R

1
1
1
1
1
1
1
1
Table of Contents:
Description: Page
Drainage Report
2-5
Appendix A:
Site Location Map
6
Appendix B:
USGS Winston-Salem East Quad Map
7
Appendix C:
USDA Soil Surrey — Forsyth County
8
Appendix D:
Existing and Proposed Watershed Conditions Maps
9 - 11
and Supporting Calculations
Appendix E:
Pre- and Post -developed Model and Input Summary
12 — 35
Water quality calculations
35 — 38
Appendix F:
Sediment Trap Sizing Check
39

Summary
KB Sellars engineering, LLC, has prepared this hydraulic analysis for our client in order to
manage storm water discharges, erosion and sediment transport from the Dollar General
Development.
Pre -developed Watershed Areas acres
PRE 1.75-acres
Post -developed Watershed Areas acres
Total
1.75-acres
A-1
1.08-acres, routed
A-2
0.67-acres, non -routed
Frequency
(years)
1
2
10
25
100
PRE
0.34
0.77
2.34
3.48
5.47
A-1 & A2
0.19
0.44
2.13
3.13
4.48
Bio-detention
Top pond
1
2
10
25
100
ele.867.0
863.66
864.07
864.60
865.10
865.81
Water quallity Volume
Volume required(ca.. 3,757 c.f.
Volume Provided (cf): Stage {ft}: Draw down time (hrs):
3,839 c.f. 863.54 53.80 hrs

' Site Narrative and Supportimi Analysis:
A. Introduction:
The Dollar General project involves development of a 1.75-acre tract frontage Thomasville Road
NC-109, located in Forsyth County, North Carolina. The existing site is wooded and vegetative.
Included in the scope will be the construction of 9,100 square feet building and parking lots,
' grading, drainage, bio-detention and erosion control.
This permit application and drainage report represents a total land disturbance of 1.80-acres to
construct the required drainage improvements.
' B. Pre -Development Site Analysis:
According to the topography from a site survey, the high and low points of the land were
' determined. The existing watershed sheet flows from Thomasville Rd. to the south corner of the
property. The existing watershed is 1.75 acres (PRE). Curve number, slope and hydraulic
lengths were determined for the pre -development condition, and runoff was modeled for the 1,2,
10, 25, and 100-year storm events to determine maximum discharges from the site.
Above is a summary showing the maximum discharge for the 1, 2, 10, 25, and 100-year storm
events. The existing soils on the site are Fairview clay (FcB2), (FcC2). These soil types are
identified in the Forsyth County Soil Survey as well -drained, Type-B soils.
Pre -Development Watershed Characteristics
Total Site Area: 2.10-acres (Which included NC-109 improvement)
Disturbed Area: 1.80-acres (Which included NC-109 improvement)
Soils: Hydrologic Soil Group B (see above descriptions and soils maps in Appendix C)
C. Post -Development Site Analvsis:
The project consists of a retail building, which includes parking lots, sidewalks, drainage
structures, yard inlets system and a bio-detention pond. Proposed on -site drainage watershed
' (A-1) will be routed through the storm pipe system and discharged into the bio-detention pond.
The runoff continues to a ponding area where it is filtered by plants, an organic or mulch layer,
and amended soil. The filtered runoff is then collected in an under drain system and discharged
to an existing ditch located at south corner property as depicted on the plans. Also the proposed
on -site drainage watershed (A-2) will be discharged to natural slope of the land as depicted on
the plans. The bio-retention pond is designed to handle runoff of the 1, 2, 10, 25 and 100 year
storm events for a fully built out site. Silt fencing and a temporary construction entrance will be
1 constructed at the location shown on the enclosed plans. Above is a summary showing the
maximum discharges for the 1„ 2, 10, 25 and 100-year storm events.
According to National Pollutant Removal Performance database (2"d edition), the bio-retention
pond is designed to trap Total Suspended Solid (TSS) more than 85%.
The detention pond will serve as a sediment basin during construction. This along with the
construction entrance, silt fence, filtrexx siltsoxx, Inlet protections and rip -rap check dam will

adequately remove sediment from runoff before leaving the site. See appendix F for sediment
trap sizing check.
1
D. Conclusions:
The post -development site conditions result in a slight reduction in peak discharge quantities
from the 1-year, 2-year, 10-year, 25-year and 100-year storm events. Water quality is ensured
through standard Best Management Practices implemented throughout construction. The
proposed project is in compliance with both the runoff quantity and quality provisions of the
NCDENR - Water Regulations.
1 E. References:
USGS Winston-Salem East, dated 1997
Hydrological soils groups - USDA Soil Survey, Forsyth County, dated 1993
Methodology - Soil Conservation Service (SCS) Technical Release Number 55 (TR-55)
Computer Modeling — Hydroflow Hydrographs (Civil3D 2011)
1 Design Storm Events — Type 11 SCS rainfall distribution
F. Appendices:
A) Site Location Map
B) USGS Winston-Salem East Quad Map
C) USDA Soil Survey - Forsyth County
D) Existing and Proposed Watershed Conditions Maps and Supporting Calculations
E) Pre- and Post -developed Model and Input Summary
F) Sediment Trap sizing check

Appendix A
Site Location Map
>II
�a n
109
Cerr:frGC tiicFry'S �'
�, Se3f S;nr:rpc yIle
wtQS par
30
eotrseuln Steel'
SrrvicesS:atw lrA t09
a
d f \\
'Q1

Appendix B
USGS Winston-Salem East Quad Map
N 36-01-5646, W 80-10-1547
I

Appendix C
USDA Soil Survey — Forsyth County
if]

1
Appendix D
1 Existing and Proposed Watershed Conditions Maps and Supporting
Calculations
n

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1 Appendix E
1 Pre- and Post -developed Model and Input Summary
1.
1q__�

' 1
Watershed Model Schematic
Hydraflow Hydrograp hs Extension for AutoCAD®Civi1 3D02011 byAutodesk, Inc, v8

Hydrograph Report
i+
' Hydraflow Hydrographs Extension for AutoCAp® Civil 34® 2011 by Autodesk, Inc. of
Hyd. No. 1
PRE
Hydrograph type
= SCS Runoff
' Storm frequency
= 1 yrs
Time interval
= 2 min
Drainage area
= 1.750 ac
Basin Slope
= 0.0 %
Tc method
= TR55
Total precip.
= 2.81 in
Storm duration
= 24 hrs
Thursday, Feb 24, 2011
Peak discharge
= 0.342 cfs
Time to peak
= 12.17 hrs
Hyd. volume
= 2,104 cuft
Curve number
= 62
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 22.70 min
Distribution
= Type II
Shape factor
= 484
I
PRE
(cfs} Hyd. No. 1 -- 1 Yea
0 2 4 6 8 10 12 14
Hyd No. 1
Q (cfs)
1k

TR55 Tc Worksheet
3
Hyd. No. 1
PRE
Description
Sheet Flow
Manning's n-value
Flow length (ft)
Two-year 24-hr precip. (in)
Land slope (%)
Travel Time (min)
Shallow Concentrated Flow
Flow length (ft)
Watercourse slope {%)
Surface description
Average velocity (ftls)
Travel Time (min)
Channel Flow
X sectional flow area (sqft)
Wetted perimeter (ft)
Channel slope (%)
Manning's n-value
Velocity (ft/s)
Hydraflow Hydrographs Extension for AutoCAD® Civil 3130 2011 by Autodesk, Inc, v8
A
= 0.800
= 96.7
= 3.39
= 6.30
= 22.34
= 129.63
= 10.80
= Unpaved
=5.30
= 0.41
= 0.00
= 0.00
= 0.00
= 0.015
=0.00
IQ
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
C
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
Totals
22.34
0.41
0.00
Flow length (ft) ({0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00 = 0.00
Total Travel Time, Tc.............................................................................. 22.70 min
+5

' 4
Hydrograph Report
Hydraf low Hydrograp hs Extension for AutoCAD®Civi13002011 by Autodesk, Inc. v8 Thursday, Feb 24, 2011
Hyd. No. 2 + _ i
A-1 (�� rvu� ry AA
141
Hydrograph type
= SCS Runoff
Peak discharge
= 2.851 cfs
Storm frequency
= 1 yrs
Time to peak
= 11.93 hrs
Time interval
= 2 min
Hyd. volume
= 5,786 tuft
Drainage area
= 1.080 ac
Curve number
= 87
'Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= User
Time of conc. (Tc)
= 5.00 min
Total precip.
= 2.81 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
I
A-1
Q (cfs) Hyd. No. 2 -- 1 Year
2.00
1.00
0 2 4 6 8 10 12 14
Hyd No. 2
r
16 18 20 22
Q (cfs)
3.00
2.00
1.00
24
Time (hrs)
,6

Hydrograph Report
5
' Hydraf low Hydrographs Extension for AutoCADO Civil Ke 2011 by Autodesk, Inc. v8
Hyd. No. 3
' A-2 C Di rY i ruo, aY
Hydrograph type =
SCS Runoff
' Storm frequency =
1 yrs
Time interval =
2 min
Drainage area =
0.670 ac
Basin Slope =
0.0 %
Tc method =
TR55
Total precip. =
2.81 in
Storm duration =
24 hrs
Thursday, Feb 24, 2011
M
Peak discharge
= 0.145 cfs •'• �rs� �n$
Time to peak
= 12.13 hrs
Hyd. volume
= 791 cuft
Curve number
= 62
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 17.80 min
Distribution
= Type I
Shape factor
= 484
1
,
Q (cfs) A-2 Q (cfs)
Hyd. No. 3 -- 1 Year
0.50 _ 0.50
0.45 0.45
0.40 0.40
0.35 0.35
0.30 0.30
0.25 _ 0.25
0.20 0.20
0.15 0.15
' 0.10 0.10
0.05 0.05
' 0.00 0.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Time (hrs)
Hyd No. 3

TR55 Tc Worksheet
0
Hyd. No. 3
A-2
Description
Sheet Flow
Manning's n-value
Flow length (ft)
Two-year 24-hr precip. (in)
Land slope (%)
Travel Time (min)
Shallow Concentrated Flow
Flow length (ft)
Watercourse slope (%)
Surface description
Average velocity (ftls)
Travel Time (min)
Channel Flow
X sectional flow area (sqft)
Wetted perimeter (ft)
Channel slope (%)
Manning's n-value
Velocity (ftls)
Hydraflow Hydrographs Extension for AutoCADO Civil 31O 2011 by Autodesk, Inc. va
A
= 0.800
= 73.0
= 3.39
= 6.84
= 17.27
= 135.84
= 7.36
= Unpaved
=4.38
= 0.52
= 0.00
= 0.00
= 0.00
= 0.015
=0.00
0
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
�1
C
0.011
0.0
0.00
0.00
+ 0.00
0.00
0.00
Paved
0.00
+ 0.00
0.00
0.00
0.00
0.015
0.00
Flow length (ft) ((0})0.0 0.0 0.0
Travel Time (min) = 0.00 + 0.00 + 0.00
TotalTravel Time, Tc.............................................................................
Totals
17.27
0.52
0.00
17.80 min
IN

Hydrograph Report
7
Hydraflow Hydrographs Extension for AUtoCADS Civil 3DV 2011 by Autodesk, Inc. v8
Hyd. No. 4
ROUTE TO POND `A-1 rvq�G 1 qvw(�
Hydrograph type = Reservoir Peak discharge =
Storm frequency = 1 yrs Time to peak =
Time interval = 2 min Hyd. volume =
Inflow hyd. No. = 2 - A-1 Max. Elevation =
Reservoir name = Bio-detention Max. Storage =
Thursday, Feb 24, 2011
0.042 cfs W4
18.33 hrs I 1
5,769 cult
863.66 ft
4,098 cuft
Storage Indication method used.
Q (cfs)
© . 0e4-241 ,+
ram. �a s
ROUTE TO POND
Hyd. No. 4 -- 1 Year
-2-
© • 1-4s
Q (cfs)
3.00
3.00
2.00
2.00
1.00
1.00
0.00
0 8 16
Hyd No, 4
0.00
24 32 40 48 56 64 72 80
Hyd No. 2 1 1=1=1=1=1=1 Total storage used = 4,098 cult Time (hrs)

Hydrograph Report
' Hydraflow Hydrographs Extension for AUtoCAD® Civil 3DO) 2011 by Autodesk, Inc, v8 Thursday, Feb 24, 2011
Hyd. No. 1
1 PRE
Qrrz,
Hydrograph type
= SCS Runoff
Peak discharge
= 0.769 cfs -'. Zr&5
' Storm frequency
= 2 yrs
Time to peak
= 12.17 hrs
Time interval
= 2 min
Hyd. volume
= 3,651 cult
Drainage area
= 1.750 ac
Curve number
= 62
Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= TR55
Time of conc. (Tc)
= 22.70 min
Total precip.
= 3.39 in
Distribution
= Type 11
1 Storm duration
= 24 hrs
Shape factor
= 484
Q (cfs) PRE
Hyd. No. 1 -- 2 Year
1.00 -- --
' 0.90
0.80
0,70
1 0.60
1 0.50
0.40
0.30 _
1 0.20
0.10
1 0.00
0 2 4 6 8 10 12 14
Hyd No. 1
1
16 18 20 22 24
Q (cfs)
1.00
0,90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
26
Time (hrs)

1 9
Hydrograph Report
' Hydratlow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. A Thursday, Feb 24, 2011
Hyd. No. 2
A-1 C Mane ,you ,pO nd -
u ,4 1
Hydrograph type
= SCS Runoff
Peak discharge
= 3.742 cfs
' Storm frequency
= 2 yrs
Time to peak
= 11.93 hrs
Time interval
= 2 min
Hyd. volume
= 7,659 cuft
Drainage area
= 1.080 ac
Curve number
= 87
'Basin Slope
= 0.0 %
Hydraulic length
= Oft
Tc method
= User
Time of conc. (Tc)
= 5.00 min
Total precip.
= 3.39 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
A-1
0 (Cfs)
Hyd. No. 2 -- 2 Year
4.00
3.00
1 2.00
1.00
0 00
0 (Gfs)
4.00
3.00
2,00
1.00
0.00
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0
Hyd No. 2 Time (hrs)

' Hydrograph Report 10
Hydraflow Hydrographs Extension for AutoCADO Civil 31D® 2011 by Autodesk, Inc. v8 Thursday, Feb 24, 2011
Hyd. No. 3
1 A-2<<
dro ra h t e
= SCS Runoff
Peak dischar e
t2-H
= 0.326 cfs YVI
Storm frequency
= 2 yrs
Time to peak
= 12.10 hrs I !
Time interval
= 2 min
Hyd. volume
= 1,373 cuft
Drainage area
= 0.670 ac
Curve number
= 62
'Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= TR55
Time of conc. (Tc)
= 17.80 min
Total precip.
= 3.39 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
' 0 (cfs) A-2Hyd. No. 3 -- 2 Year
a.so
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
' 0.05
' 0.00
0 2 4 6 8 10 12 14
Hyd No. 3
16 18 20 22 24
0 (cfs)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
26
Time (hrs)

' 11
Hydrograph Report
' Hydraflow Hydrograp hs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8 Thursday, Feb 24, 2011
Hyd. No. 4
ROUTE TO POND
Hydrograph type
= Reservoir
Peak discharge
= 0.111 cfs .'.0ru�5�
Storm frequency
= 2 yrs
Time to peak
= 14.03 hrs
Time interval
= 2 min
Hyd. volume
= 7,642 cuft
Inflow hyd. No.
= 2 -A-1
Max. Elevation
= 864.07 ft
Reservoir name
= Bio-detention
Max. Storage
= 5,034 cuft
Storage Indication method used.
r vm 'c
r -� — Z
IJ
D. +
�' SZfIle
ROUTE TO POND
Q (cfs} Hyd. No. 4 -- 2 Year
4.00
3.00
' 2.00
' 1.00
0.00
0 8 16 24 32 40 48 56 64 72
Hyd No. 4 Hyd No. 2 I_I_I-LI_I_I Total storage used = 5,034 cult
Q (cfs)
4.00
3.00
2.00
1.00
--1- 0.00
80
Time (hrs)
1't7

Hydrograph Report
12
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Hyd. No. 1
PRE
Hydrograph type
= SCS Runoff
Peak discharge
Storm frequency
= 10 yrs
Time to peak
Time interval
= 2 min
Hyd. volume
Drainage area
= 1.750 ac
Curve number
Basin Slope
= 0.0 %
Hydraulic length
Tc method
= TR55
Time of conc. (Tc)
Total precip.
= 4.89 in
Distribution
Storm duration
= 24 hrs
Shape factor
Thursday, Feb 24, 2011
= 2.342 cfs Qwrp— Ljrg
= 12.13 hrs I !
= 8,865 cuft
= 62
= 0ft
= 22.70 min
= Type II
= 484
1
PRE
Q (cfs) Hyd. No. 1 -- 10 Year
3.00
2.00
1.00
0.00
0 2 4 6 8 10 12 14 16 18 20 22 24
Hyd No. 1
Q (cfs)
3.00
2.00
1.00
0.00
26
Time (hrs)
Z4

Hydrograph Report
13
Hydraflow Hydrographs Extension for AutoCADO Civil Ke 2011 by Autodesk, Inc. v8
Hyd. No. 2
' A-1 ( OOVV. rvu�G
t'O rVVIA
Hydrograph type
= SCS Runoff
Peak discharge
Storm frequency
= 10 yrs
Time to peak
Time interval
= 2 min
Hyd. volume
Drainage area
= 1.080 ac
Curve number
'Basin Slope
= 0.0 %
Hydraulic length
Tc method
= User
Time of conc. (Tc)
Total precip.
= 4.89 in
Distribution
' Storm duration
= 24 hrs
Shape factor
1
Q (cfs) A-1
Hyd. No. 2 -- 10 Year
Hai
0.0 2.0 4.0 &0 8.0 10.0 12.0
----- Hyd No. 2
Thursday, Feb 24, 2011
= 6.078 cfs
= 11.93 hrs
= 12,731 cuft
= 87
= Oft
= 5.00 min
= Type II
= 484
14.0 16.0 18.0 20.0
A-:L
Q (cfs)
7.00
. M
5.00
4.00
3.00
2,00
1.00
22.0
Time (hrs)
1

Hydrograph Report
14
' Hydraf low Hydrographs Extension for AUtoCAD® Civil 3002011 by Autodesk, Inc. v8
Hyd. No. 3
Thursday, Feb 24, 2011
' A-2 V 11
A- Z
Hydrograph type =
SCS Runoff
Peak discharge
= 0.983 cfs 1O�vL5
Storm frequency =
10 yrs
Time to peak
= 12.10 hrs
Time interval =
2 min
Hyd. volume
= 3,334 cuft
Drainage area =
0.670 ac
Curve number
= 62
Basin Slope =
0.0 %
Hydraulic length
= 0 ft
Tc method =
TR55
Time of conc. (Tc)
= 17.80 min
Total precip. =
4.89 in
Distribution
= Type II
' Storm duration =
24 hrs
Shape factor
= 484
1
' Q (cfs) A-2Hyd. No. 3 -- 10 Year
r vvv 0 2 4 6 8 10 12 14
Hyd No. 3
1
16 18 20 22 24
Q (cfs)
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
—1 0.00
26
Time (hrs)
IVA

15
Hydrograph (Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Thursday, Feb 24, 2011
Hyd. No. 4
ROUTE TO POND
Hydrograph type =
Reservoir
Peak discharge
= 1.151 cfs :. kvr(
Storm frequency =
10 yrs
Time to peak
= 12,10 hrs
Time interval =
2 min
Hyd. volume
= 12,714 cuft
Inflow hyd. No. =
2 - A-1
Max. Elevation
= 864.60 ft
Reservoir name =
Bio-detention
Max. Storage
= 6,508 cuft
Storage Indication method used.
ci�
4
Q (cfs)
7.00
. m
5.00
4.00
3.00
2.00
1.00
0.00 ' -
0 6
Hyd No. 4
ROUTE TO POND
Hyd. No. 4 -- 10 Year
12 18 24 30 36 42 48 54 60
Hyd No. 2 FFf -D-Fi Total storage used = 6,508 cult
Q (cfs)
7,00
5.00
4.00
3.00
2.00
1.00
0.00
66
Time (hrs)
11

Hydrograph Report
16
Hydraflow Hydrograp hs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. vE
Hyd. No. I
' PRE
Hydrograph type
= SCS Runoff
' Storm frequency
= 25 yrs
Time interval
= 2 min
Drainage area
= 1.750 ac
'Basin Slope
= 0.0 %
Tc method
= TR55
Total precip.
= 5.80 in
' Storm duration
= 24 hrs
Thursday, Feb 24, 2011
Peak discharge
= 3.481 cfs .: Qr-r— 2-95yrt
Time to peak
= 12.13 hrs
Hyd. volume
= 12,640 cuft
Curve number
= 62
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 22.70 min
Distribution
= Type II
Shape factor
= 484
PRE
Q (cfs) Hyd. No. 1 -- 25 Year
4.00
3.00
2.00
1.00
0.00
0 2 4 6 8 10 12 14
Hyd No. 1
16 18 20 22 24
Q (cfs)
4.00
3,00
2.00
1.00
—� 0.00
26
Time (hrs)
M

I H dro ra h Report
Y g p p
17
' Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2011 by Autodesk, Inc. v8
Hyd. No. 2
Thursday, Feb 24, 2011
A-1 (OOYte, MLA
�O )
A-1
Hydrograph type
= SCS Runoff
Peak discharge
= 7.495 cfs :
Llrct -OSgx
Storm frequency
= 25 yrs
Time to peak
= 11.93 hrs
Time interval
= 2 min
Hyd. volume
= 15,900 cuft
Drainage area
= 1.080 ac
Curve number
= 87
Basin Slope
= 0.0 %
Hydraulic length
= 0 ft
Tc method
= User
Time of conc. (Tc)
= 5.00 min
Total precip.
= 5.80 in
Distribution
= Type II
Storm duration
= 24 hrs
Shape factor
= 484
1
A-1
0 (cfs) Hyd. No. 2 -- 25 Year
6.00
4.00
' 2.00
0 (cfs)
8.00
[K1fl1]
2,00
0.00 0.00
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Hyd No. 2 Time (hrs)

Hydrograph Report
18
Hydraflow Hydrographs Extension for AutoCAM Civil 3D® 2011 by Autodesk, Inc. A
Hyd. No. 3
A-2 C bl c�
1
►1'LcA,*
Hydrograph type
= SCS Runoff
Peak discharge
' Storm frequency
= 25 yrs
Time to peak
Time interval
= 2 min
Hyd. volume
Drainage area
= 0.670 ac
Curve number
Basin Slope
= 0.0 %
Hydraulic length
Tc method
= TR55
Time of conc. (Tc)
Total precip.
= 5.80 in
Distribution
Storm duration
= 24 hrs
Shape factor
A-2
Q (cfs) Hyd. No. 3 -- 25 Year
2.00
1
' 1.00
0.00
0 2 4 6 8 10 12 14
Hyd No, 3
Thursday, Feb 24, 2011
A-Z
= 1.454 cfs
2Sj ro5
= 12.10 hrs
= 4,754 cult
= 62
= 0ft
= 17.80 min
= Type 11
= 484
16 18 20 22 24
Q (cfs)
2.00
1.00
1 0.00
26
Time (hrs)
�O

19
Hydrograph
(Report
HydraFlow Hydrographs Extension for AutoCAD® Civil 3D(@ 2011 by Autodesk, Inc. v8
Thursday, Feb
24, 2011
Hyd. No. 4
ROUTE TO POND
C R_i rau�c
Hydrograph type
= Reservoir
Peak discharge
= 1.671 cfs
Qrm, ZS4rt
Storm frequency
= 25 yrs
Time to peak
= 12.07 hrs
Time interval
= 2 min
Hyd. volume
= 15,883 cuft
Inflow hyd. No.
= 2 - A-1
Max. Elevation
= 865.10 ft
Reservoir name
= Bio-detention
Max. Storage
= 7,969 cuft
Storage Indication method used. A_i
(�
C. (:;? I + t 1•
ROUTE TO POND
Q (cfs)
Hyd. No. 4 -- 25 Year
Q (cfs)
8.00
8.00
6,00
6.00
4.00
4.00
2.00
2.00
F
0.00
0.00
0 6
12 18 24 30 36
42 48 54 60 66
Hyd No. 4
Hyd No. 2 1-1=1-1-1=1-1
Total storage used = 7,969 cult Time (F1rs)
31

Hydrograph Report
20
Hydraflow Hydrographs Extension for AutoCAD® Civil 30® 2011 by Autodesk, Inc. vQ
Hyd. No. 1
PRE
Hydrograph type
= SCS Runoff
Storm frequency
= 100 yrs
Time interval
= 2 min
Drainage area
= 1.750 ac
Basin Slope
= 0.0 %
Tc method
= TR55
Total precip.
= 7.25 in
Storm duration
= 24 hrs
Thursday, Feb 24, 2011
Peak discharge
= 5.469 cfs :. &fewvjts
Time to peak
= 12.13 hrs
Hyd. volume
= 19,308 cult
Curve number
= 62
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 22.70 min
Distribution
= Type II
Shape factor
= 484
PRE
0 (cfs)
Hyd. No. 1 -- 100 Year
vvv 0 2 4 6 8 10 12 14
Hyd No. 1
16 18 20 22 24
0 (cfs)
6.00
5.00
4.00
3.00
2.00
1.00
—L- 0.00
26
Time (hrs)
31-

Hydrograph Report
21
' Hydraflow Hydrographs Extension for AutoCAD® Civil 3D®2011 by Autodesk, Inc, v8
Hyd. No. 2
A-1 C�r ov+.e. 1w
rd �
Hydrograph type
= SCS Runoff
' Storm frequency
= 100 yrs
Time interval
= 2 min
Drainage area
= 1.080 ac
Basin Slope
= 0.0 %
Tc method
= User
Total precip.
= 7.25 in
Storm duration
= 24 hrs
Thursday, Feb 24, 2011
144
Peak discharge
= 9.742 cfs : • O�t,00yr�
Time to peak
= 11.93 hrs l
Hyd. volume
= 21,028 cuft
Curve number
= 87
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 5.00 min
Distribution
= Type II
Shape factor
= 484
A-1
0 (cfs) Hyd. No. 2 -- 100 Year
10.00
8,00
1
6.00
4.00
2.00
Q (cfs)
10.00
OM
we]
to
4.00
2,00
0.00 0.00
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0
Hyd No. 2 Time (hrs)
i

Hydrograph Report
0
Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2011 by Autodesk, Inc. v8
Hyd. No. 3
A-2
C bi rc'-.
Hydrograph type =
SCS Runoff
Storm frequency =
100 yrs
Time interval =
2 min
Drainage area =
0.670 ac
Basin Slope =
0.0 %
Tc method =
TR55
Total precip. =
7.25 in
�! Storm duration =
24 hrs
Thursday, Feb 24, 2011
Peak discharge
= 2.276 cfs • OfC' �tWjtQ
Time to peak
= 12.07 hrs
Hyd. volume
= 7,263 cuft
Curve number
= 62
Hydraulic length
= 0 ft
Time of conc. (Tc)
= 17.80 min
Distribution
= Type li
Shape factor
= 484
Q (cfs) A-2
Hyd. No. 3 -- 100 Year
® V Vv 0 2 4 6 8 10 12 14
Hyd No. 3
0 (cfs)
3.00
2.00
1.00
0.00
16 18 20 22 24 26
Time (hrs)
q#

23
Hydrograph
Report
HydraFlow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by AutodesR, Inc. v8
Thursday, Feb 24, 2011
Hyd. No. 4
ROUTE TO PONDS
Hydrograph type
= Reservoir
Peak discharge =
2.204 cfs :. Ortoor-7
Storm frequency
= 100 yrs
Time to peak =
12.07 hrs
Time interval
= 2 min
Hyd. volume =
21,011 cult
Inflow hyd. No.
= 2 - A-1
Max. Elevation =
865.81 ft
Reservoir name
= Bio-detention
Max. Storage =
10,419 cult
Storage Indication method used.
2 . p . %r,
Q (cfs)
10.00
: M
. I1
4.00
2.00
0.00
0 6
Hyd No, 4
ROUTE TO POND
Hyd. No. 4 -- 100 Year
12 18 24 30 36 42 48 54
Hyd No. 2 1=I.CI-I=1_I: Total storage used = 10,419 CUR
Q (cfs)
10.00
. W
4.00
2.00
0.00
60
Time (hrs)
3�

WATER QUALITY DETENTION CALCULATION
Project: Thomasville Road - Dollar General Project # 10-329
Treatment Drainage Area: DA = 0.69 ac or 30,056 sf
WQ Design Storm (Runoff Volume): Rv = 1.50 in or 0.125 ft
STORAGE CALCULATION
WO Volume:
WQV = DA x Rv = 3,757 cf wQ �urGd ,�'�'
f
OUTLET SIZING
Use orifice in riser. Assume average head of 213 max head (from pond geometry)
Flow rate:
Q = WQV 148 hrs = 0.022 cfs
From the Orifice Equation,
A = QI[C(2gh) "'], where: Q = flow rate (cfs)
C = orifice coefficient
g = 32.2 ft/sec2
h = head on the orifice (ft)
C =0.6 for sharp -edge orifices, where the material is thinner than the orifice diameter.
C = 0.8 where the material is thicker than the orifice diameter.
C = 0.92 where orifice edges are rounded.
C=1 0.6
Choose average head from pond geometry: h=J 3.0 ft
Determine Diameter from A:
D = 1 0.69 in
Page 17

Pond No. 1 - Bio-detention HydraflowHydrographsExtension for AutoCAMCivil 3DO2011byAutodesk,Inc. v8
7,00
Top of pond
Elev, 867,00
6M
14.16 ft Riser
WeirA - Elev. 866.00
5.00
4.00 in orifice
4.00 CulvC - Inv. 864.00
3.00
wa `ov, : 86 y
2.00
1.00 in orifice
�i Culv6 -Env. 861.00
1.O0pft:A
318 p (!-F
CulvA - 35.0 LF of 15.0 in @ 1.43%
------------------
0.00
Stage (ft) Bottom of pond
Section EIev.861.00
NTS
1-yr
Inflow hydrograph = 2. SCS Runoff - A-1
Project: 10-329 STORM-WO-1.gpw Thursday, Feb 24, 2011

Hydrograph Report
Hydraflow Hydrograp hs Extension for AutoCAM Civil 31@ 2011 by Autodesk, Inc. v8
Thursday, Feb 24, 2011
Hyd. No. 4
ROUTE TO POND
Hydrograph type
= Reservoir
Peak discharge
= 0.041 cfs
Storm frequency
= 1 yrs
Time to peak
= 5.00 hrs
Time interval
= 6 min
Hyd. volume
= 4,194 cuft
Inflow hyd. No.
= 2 - A-1
Max. Elevation
= 863.54 ft =
Reservoir name
= Bio-detention
Max. Storage
= 3,839 cuft •'• Oft —
Storage Indication method used
Q (cfs)
3.00
2.00
1.00
0.00 I a— ET
0 6
- Hyd No. 4
ROUTE TO POND
Hyd. No. 4 -- 1 Year
12 18 24 30 36 42 48
Hyd No. 2 i_hf-1_i-1 f Total storage used = 3,839 cult
Q (cfs)
3.00
2.00
1.00
V 1 0.00
54
Time (hrs)
1V

Precipitation Frequency Data Server Page 1 o1'4
POINT PRECIPITATION",..
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
North Carolina 36.0156.46 N 80.1015 W 882 feet
from "Precipitation -Frequency Atlas of the United Statcs" NOAA Atlas 14, Volume 2, Version 3
G.M. 13onnin, D. Martin, 13. Lin, 'I' Parcybok, M.Yeklal, and D. Riley
NOAA, National Weather Service, Silver Spring, Maryland, 2004
Extracted: T'uc Feb 22 2011
.Confidence Limits.. 5easonailty Related info G1S data Maps Docs Return to State Map
Precipitation Frequency Estimates (inches)
AR1*
5
10 15 3(1 60 120
12
24 l0 20 3U 45 60
7 day �����
(Y )day
ears
min
mtn mtn ntln min mm
hr
ttr da da da da day
©
0.38
0.61 0.76 1.04 1.30 1.52
1.63 1.98 2.34
2.81 3.26 3.65 . 4.18 4.73 6.37 7.89 9.92 l 1.89
0.45
0.72 0.9] 1.25 1.57 1.85
1.98 2.39 2.83
3.M 3.92 4.38 4.99 5.63 7.53 9.29 11.62 13.87
0
0.53
0.84 l .07 I.5 I 1.94 2.30
2.46 2.48 3.54
4.23 4.86 5.34 6.06 6.77 8.91 10.79 13.3 I 15.66
10
0.58
07927
10.01 11.95 14.63 17.04
25
0.63
1.00 1.27 1.88 2.51 3.04
3.27 4.02 4,87
5.80y G.54 7.25 8.05 8.88 11.51 13.48 16.35 18.80
50
0.66
1.06 1.34 2.01 2.73 3.35
3.61 4.47 5.47
6.52 7.30 8.10 8.97 9.84 12.69 14.65 17.66 20.11
100
0.69
1.10 1
18.94 21.38
200
0.71
71131F,.43 2.22 3.12 3.93
4.26 5.38 6.75
8.01 8.85 9.86 10.85 11.79 15.10 16.97 20.21 22.60
500
0.73
1.16 F 4-61 E3fl 3.34 K2fl
4.66 5.99 7.64
9.06 99l 11 06 12.14 13.12 16.75 l8.50 2l.89 24.15
1000
0.75
1.18 1.48 2.39 3.49 4.54
4.95 6.45
8.33
9.88 10.73 12.O1 13.16
14.15
18.04
19.67
23.16
25.30
" These precipitation frequency estimates are based on a partial duration series. ARI is the Average Recurrence Interval.
Please refer to NOAA Atlas 14 Document for more information. NOTE: Formatting forces estimates near zero to appear as zero
'
* Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
ARI** 10 15 30 60 120 3 6 12 24 4$ 4 7 10 20 30 45 60(years)[-5
min1min min min min min hr hr hr hr hr day day day day day day day
1� 0.41
0.66 0.82 1.13 1.41
1.66
1,77 2.16
2,56 3.03 3.50 3.91 4,46 5.03 6.74
8,27 10.39 12.41
2� 0.49
0.78 0.99 l .36 1.71
2.01 2, l5 2.61 3.09 3.66 4,21 4,69 5.32 5.98 795 9.71 12.14 ! 4.47
�S 0.57
0.92
171. 77 13.91 16.33
10 0.62
1.00 1.26 1.83 2.38
2.85 3.05 3.72
4.46
5.28 5.98 6.62 7.36 8.14 10.58 12.49 15.28 ] 7.77
25 0.68
1.08 1.38 2.64 2.71
3.29 3.53 4.35 5.27 6.26 7.02 7.77 8.60 9.43 12. l 7 14.09 17.09 ] 9.b 1
'F
50 0.72
F, 1-41 1
4 61 13.43 15.34 18.48 21.01
l00 0.75
EEKE 2.30 3.17
3.95 4.24 5.32 6.58 7.84 8.68 9.64 10.59 11.50 14.73 16.59 19.86 22.3b
200 0.77
500 0.80
1.23 ! .55 2.4 ] 3.38
1.26 F 5-91 Efl Efl
4.25 4.59 5.81 7.26 8.b7 9.54 10.G2 1 1.63 12.58 16.07 17.86
4.64 5.03 6.47 8.2! 9.82 10.72 11.46 13. 77 14.06 17.89 19.54
21,25
23. 77
23.67
25.36
1000
0.81
1.28 l .G0 2.60 3.79
4.92 5.35 6.9b
8.96
! 0.74 1 1.65 13.02 14.22 15.23
19.32 20.84 24.48 26.b3
The upper bound of the confidence interval at 9U%a contloence level Is the value wnicn b%n of me simulated quamile values ror a given frequency are greater tnan.
"These precipitation frequency estimates are based on a partial duration series. ARI is the Average Recurrence lnterval.
Please refer to NOAA Atlas 14 Document for more information. NOTE: Formatting prevents eslimates near zero to appear as zero.
* Lower bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
ARI 5 ] 0 15 30 60 120 3 6 12 24 48 4 7 1 U 20 30 45 60
'{year) min min min min min min hr hr hr hr hr day day day day day day day
1 0.35 0.56 Q70 0.96 1.20 L4 ] 1.50 1.83 2. l6 2.61 3.04 3.42 3.92 4.47 6.03 7.54 9.49 1 1.42
0.42 0.67 0.84 1.16 1.45 1.71 1.83 2.21 2.61 3.15 3.66 4. ! 0 4.68 5.31 7.13 8.86 1 1.10 13.33
0 0.48 0.7$ 0.98 1.40 1.79 2.12 2.27 2.75 3.26 3.92 4.53 5.04 5.67 6.37 8.44 10.28 12.72 15. 44
10 0.53 0.85 1.07 1.55 2.02 2.41 2.59 3.14 3.76 4.53 5. ] 9 5.78 6.46 7.20 9.46 1 1.37 13.96 16.34
http://dipper.nws.noaa.gov/cgi-bin/hdsc/buildout.perl?type=pf&units=us&series=pd&statename=NORTH... 2/22/2011

Print Page - NC Areas Subject to Phase II Post -Construction & Other Stormwater Program Requirements Page 1 of.']
NC Areas Subject to Phase II Post -Construction & Other Stormwater Program Requirements
Map Legend
'
Interstates
Local Roads
i•
nr
Secondary Roads
`.
Primary Roads
US Highway
Aj
NC Highway
Counties
1:24K Hydrography (Arcs)
Hydrography
' ❑
1r241( Polygons
ICI
Municipal Boundaries
Stormwater Jurisdiction
Coastal State SW Program
Local Program
■
State Stormwater Program
'
No Storm water Program
■
Overlapping Programs
Phase v Area
I■
5A waters
The -map representations.are the best available
as ot:July 27, 2010. Please check with the Inca[
government (city or county) in your location to
verify specific stormwater requirements.
(Areas subject to Stormwater Post -Construction
(Permitting) are based on existing programs and
Session Law 2006-246. NC Division of Water
(Quality, 2/22/2011
N Vie;, si ; i i f JAYSa Ln 1 I -
rn 1 TaY+er
5f'
I V 1 1 • i - ftf{
I I I l 1 l '�•
_ � t i � 1 I. �} �• f.
f' 1 Cash Catd��
nipR C �lrose R j
altn, a Lin
I f t i �� m
o. f I •,;Qas�Y4� � Wit,
A
-�_
' -�0 36.03, -80.17
i :ram .�• , � I �.�� � � r`y � Rcx � '"�� � ��
ijl t_I1 6 j AI
�]109 l 1
'A-✓� ✓7' yt2Sille
M a i
�F I L i aura
s J , �+
� �•
Results
Contact :
DWQ Central Office
DENR
Region :
Winston-Salem
County :
FORSYTH
Permitting :
state
Basis :
In Urbanizing Area or Phase II MSI
Type :
Phase I! MS! o Ur A�
Notes :
Inside FORSYTH CO
Phase 2 :
Subject to Phase II Post -Construction
3 urisd iction:J
I FORSYTH CO
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Pond Report
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Hydra low Hydrographs Extension for AutoCADO
Civil
3D®2011
by Autodesk, Inc. v8
Tuesday, Mar 1, 2011
Pond No. 1 - Bio-detention
Pond Data
Contours -User-defined contour areas. Conic method used for volume calculation. Begining
Elevation = 861.00 ft
Stage ! Storage Table
Stage (ft) Elevation (ft)
Contour area (sgft)
Incr. Storage (cult)
Total storage (cutt)
0.00 861.00
851
0
0
1.00 862.00
1,333
1,083
1,083
2.00 863.00
1,872
1,595
2,678
3.00 864.00
2,467
2,162
4,840
4.00 865.00
3,119
2,786
7,626
5.00 866.00
3,827
3,467
11,093
6.00 867.00
4,592
4,203
15,296
Culvert if Orifice Structures
Weir Structures
[A] [B]
[C]
[PrfRsr]
[A] [Bl [C]
[D]
Rise (in) = 15.00 1.00
4.00
0.00
Crest Len (ft)
= 14,16 0.00 0.00
0.00
Span (in) = 15.00 1.00
4.00
0.00
Crest El. (ft)
= 866.00 0.00 0.00
0.00
No. Barrels = 1 1
4
0
Weir Coeff.
= 3.33 3.33 3.33
3.33
Invert EL (ft) = 861.00 861.00 864.00
0,00
Weir Type
= 1 --- ---
---
Length (ft) = 35.00 0,00
0.00
0.00
Multi -Stage
= Yes No No
No
Slope (%) = 1.43 0,00
0.00
n1a
N-Value = .013 .013
.013
nla
Orifice Coeff. = 0.60 0.60
0.60
0.60
Exfil.(inlhr)
= 0.000 (by Contour)
Multi -Stage = nla Yes
Yes
No
TW Elev. (ft)
= 0,00
Note: Culve orifice o tflows are analyz nd inlet c} and gullet (cc) control. Weir r ers check for orifice conditions (ic) and subryergence (s).
1.
+ vt�4 ;440(
01112:116" + U910V oc/k" ZIS eo Cic
Stage (ft) Stage / Storage Elev (ft)
6.00 1 1 1 1 867.00
5.00
4.00
3.00
2.00
1,00
0,00 " 1 1' '
0 2,000 4,000 6,0001( 8,000
Storage I�
mv.4 :(; 60 GF
AvIt"
10,000
0(_
12,000
14,000
866.00
865.00
864.00
863.00
862.00
1 861.00
16,000
Storage(cuft)