SW4101001_CURRENT PERMIT_20111201

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW��D�i�J��
DOC TYPE
CURRENT PERMIT
r
APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
/) /I���/�l
WYYMMDD

- a7
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Richard A Brown
Progress Energy Carolinas
PO Box 1981 - TPP 18
Raleigh, NC 27602
Division of Water Quality
Coleen H. Sullins
Director
November 8, 2011
Subject: Stormwater Permit No. SW4101001 Modification - Correction
Progress Energy Ramseur 115/24kV Substation
High Density Utility Project
Randolph County
Dear Mr. Brown:
Dee Freeman
Secretary
RECEIVED
IJ,C, Dent. of F.NR
DEC 01 20ii
winston•5alem
Regional Office
The Stormwater Permitting Unit received an administrative correction request for the Stormwater Management
Permit for Progress Energy Ramseur Substation on November 7, 2011. Staff review of the file and permit has
determined that the correction request is valid. We are forwarding a corrected Permit No. SW4101001, dated
October 31, 2011, for the construction, operation and maintenance of the subject project and stormwater BMPs
This corrected permit reflects changing the stormwater system inspections from semi-annual to annual per, the
approved 0&M Agreements.
This permit continues to be effective from the date of issuance until December 16, 2020, and shall be subject to
the conditions and limitations as specified therein. Please pay special attention to the Operation and
Maintenance requirements in this permit. Failure to establish an adequate system for inspection and
maintenance of the stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request
an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request
must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and
filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 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 Robert Patterson at [phone] or
[e-mail].
Sincerely, cc: SW4101001 File
�v�% ec: Sue Homewood - Winston-Salem Regional Office
Virginia Russell - Dewberry & Davis, Inc.
forColeen H. Sullins Dalton Cook- Progress Energy Carolinas
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] L Customer Service: 1-877-623-6748
Internet. www.ncwaterquality org
Nne
orthCarolina
Naturally
An Equal Oppcoun4\AEfrmaliveActon Employer

State Stormwater Permit
Permit No.SW4101001
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY UTILITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Progress Energy Carolinas
Progress Energy Ramseur 225/24kV Substation
357 King Road, Ramseur, Randolph County
FOR THE
construction, operation and maintenance of two (2) extended dry detention basins in series followed
by a level -spreader and vegetated filter strip 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 December 16, 2020, and shall be subject
to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6 of this permit. The stormwater control has been designed to handle
the runoff from 29,185 square feet of impervious area.
3. The stormwater system drainage area will be limited to the amount of built -upon area
indicated in Section 1.6 of this permit, and per approved plans, resulting in an impervious
percentage of 83%. The total project impervious percentage is limited to 54%.
4. All stormwater collection and treatment systems must be located in either dedicated common
areas or recorded easements. The final plats for the project will be recorded showing all such
required easements, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
6. The following design criteria have been provided in the stormwater system and must be
maintained at design condition:
Page 1 of 6

State Stormwater Permit
Permit No. SW4101001
Al. Dry Extended Detention Basin #1 for drainage area B as per the attached approved
Dry Extended Detention Basin Supplement dated October 21, 2011 and approved
October 31, 2011.
A2. Dry Extended Detention Basin #2 for drainage area B as per the attached approved
Dry Extended Detention Basin Supplement dated October 21, 2011 and approved
October 31, 2011.
A3, Level Spreader with Vegetated Filter Strip for drainage area B as per the attached
approved Level Spreader, Filter Strip and Restored Riparian Buffer Supplement dated
October 21, 2011 and approved October 31, 2011.
B. Receiving Streams/River Basin: Deep River 1 Cape Fear Basin
C. Stream Index Numbers: 17-(10.5)
D. 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 intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately.
3. The permittee shall at all 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. Annual scheduled inspections (every 12 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the 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.
a. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
The facilities shall be constructed as shown on the approved plans. The stormwater treatment
system shall be constructed in accordance with the approved plans and specifications, the
conditions of this permit, and with other supporting data.
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.
If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to occupancy of the
facility.
Page 2 of 6

State Stormwater Permit
Permit No.SW4101001
Access to the stormwater facilities shall be maintained via appropriate easements at all times.
The permittee shall submit to the Director and shall have received approval for revised plans,
specifications, and calculations prior to construction, for any modification to the approved
plans, including, but not limited to, those listed below:
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
area.
e. Further subdivision, acquisition, lease or sale of all or part of the project area. The
project area is defined as all property owned by the permittee, for which
Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
10. The permittee shall submit final 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 permittee when the permitted site does not meet one or more of
the minimum requirements of the permit. Within the time frame specified in the notice, the
permittee shall submit a written time schedule to the Director for modifying the site to meet
minimum requirements. The permittee shall provide copies of revised plans and certification in
writing to the Director that the changes have been made.
III. GENERAL CONDITIONS
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 request will be considered on its
merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such time as the
Division approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances, which may be imposed by other government
agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be
required by this Division, such as the construction of additional or replacement stormwater
management systems.
6. The permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater management
facility.
Page 3 of 6

State Stormwater Permit
Permit No.SW4101001
7. The permit issued shall continue in force and effect until revoked or terminated. The permit
may be modified, revoked and reissued or terminated for cause. The filing of a request for a
permit modification, revocation and re -issuance or termination does not stay any permit
condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must
follow the guidelines established in the North Carolina Erosion and Sediment Control Planning
and Design Manual.
9, Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws,
rules and regulations contained in Session Law 2006-246, Title 15A NCAC 2H.1000, and NCGS
143-215.1 et.al.
11, The permittee shall notify the Division of any name, ownership or mailing address changes at
least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and documentation at
least 180 days prior to the expiration date of this permit.
Permit issued this the 315C day of October, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
P /'� ;60.
forColeen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 6

State Stormwater Permit
Permit No.SW4101001
PROGRESS ENERGY RAMSEUR 115/24KV SUBSTATION
Stormwater Permit No. SW4101001
Randolph 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,
(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.SW4101001
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -
upon area.
3. All built -upon area associated with the project is graded such that the runoff drains to
the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
a. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
11. The permitted amounts of surface area and/or volume have been provided.
12, Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, and a
forebay, if required.
15. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to:
DWQ Winston-Salem Regional Office
Surface Water Protection
585 Waughtown Street
Winston-Salem, NC 27107
Page 6 of 6

S %/ LJ 10 1 CC)) Ai Z: '
Permit No.
(to be provided by DWO)
��STORMWATER
ar":
MANAGEMENT PERMIT APPLICATION FORM �`l.JtltJLxr
NCDENR
401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required items Checklist (Part 111) must be printed, filled out and submitted along with all the required information.
I:P.ROJECT INFORMATION
Project name
PEG Ramseur Substation - First Dry Detention Basin in the Series _ 1
Contact person
Virginia Russell, PE
Phone number
919-881-9939
Date
10 21.11
Drainage area number
B
V'dESIGiV INFQRNlIAT10.'
Site Characteristics
Drainage area
35,283.00
Impervious area
29,185.00
% Impervious
Design rainfall depth
C.83
1,00 in
_,i nly[r, r+;I4il'rl ;rCil+rllal'I" + ��
rcPUINd ter I,,,,
Peak Flow Calculations
,
1 yr, 24-hr rainfail depth
I;l il�r, , C�14Jfl,j Illal Iln, ;1l- ; ff'r- • .�
2.89 in IrSl:eri (III1;N;l ,:rdu;,b!I- rltll, , hJ r
Rational C, pre -development
.• 4'i:ilr„rn1i1; wllll .L:
0.23 (unitless) plrJrlh'.Irn1 Ir:e�r :, •;no'I_ Iltf, I , ;7iltlnrrl ,•,I;j, itl�:
Rational C, post -development menl
p p
0.77 (unitless)
'!'1 III It u,5 +b'r j t V 1 c v t rear 3r
Rainfall intensity: 1-yr. 24•hr storm
3.85 inthr . ra ,r
Pre -development i-yr, 24-hr peak flow
Post -development 1-yr, 24•hr peak flow
0.70 ft'lsec II "i'•"!III?r, ral,'lI,14
2.40 ft'lsec rlr.. t - ----- Revisirr' Oat',
/
PretPosl 1-yr, 24-hr peak control
1,70 ft�tsec
Storage Volume: Non -SA Waters
Minimum required volume
2,336.00 ft'
Provided volume
2,479.00 je Gil
Sediment storage volume provided
619.75 q' OI,
Storage Volume: SA Waters
1.5' runoff volume
ft1
Pre -development 1-yr, 24•hr runoff volume
ft�
Post -development 1-yr, 24•hr runoff volume
ft'
Minimum required volume
0
Provided volume
ft�
Sediment storage volume provided
ft3
Basin Design Parameters
Dmwdown time
3.00 days GK
Si elevation
558.00 fmsf
Basin bottom elevation
561.00 frnsl
Storage elevation
562.50 fmsl
Basin side siopes
3.0 :1 OK
Top elevation
564.00 fmsl OK
Freeboard provided
1.50 ft GK
Basin Bottom Dimensions
Basin length
47.00 1t
Basin width
29.00 fi
Length to width ratio
1.62 :1
Form SW401-Dry Extended Delentlon Basin-Rev.3 Parts I. & II. Design Summary, Pago I of 3

Permit No. _!��V'a 1 0 1 00 k
tto be provided by OWO)
Additional Information
Total runoff volume captured by basin 0.68 ac-in corebay is not required
Forebay provided N (Y or N)
Is basin in a recorded drainage easement? N (Y or N} Need to a recorded drainage easement
Goes basin capture all runoff at ultimate build -out? Y, (Y or N) 01<
Is a sediment depth indicator included? y (Y or N) OK
Does the basin include a drain? Y' ^ (Y or N) OK
Form SW40I-Dry Extended Dotenfion BaSin•Rev.3 Parts I. & It. Design Summary, Page 2 of 3

SW l l l) 2 0 01 !4•crn
Permit No,
(to be provided by DWQ)
AMAr
` 4
STORMWATER MANAGEMENT PERMIT APPLICATION FORM up—,NCDENR
`-
401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be lilted out, printed and submitted.
The Required Items Checklist (Part )II) must be printed, filled out and submitted along with all the required information.
I: j P,_ROJECT INFURMATIONs _
Project name
PEC Ramseur Substation - Second Dry Detention Basin in the Series - 2
Contact person
Virginia Russell, PE
Phone number
919-881-9939
Date
10.21.11
Drainage area number
B
u. u SfcN iN oRMATIOl
Site Characteristics
Drainage area
35,283 00 jr,'
Impervious area
29,185,00 ,t1
%Impervious
0.83 N,:]rn•r,.,vV:,A fn:. d Oct lnin111
Design rainfall depth
1.00 iF
required by tfie storrnwaler f),;rniil. Nnrth k:arolinn
Peak Flow Calculations
rules require that the sr.rmr;:: .; .ysiem detsigAer
1-yr, 24-hr rainfall depth
2,89 In Inspect during construe+ion; coiiify conformity with th*u
Rational C, pre -development
Rational C, post -development
0.23 {unitless) plans and eper;3: unri certify r.Umphance with the
t,]rmwater rules. (15A l 2H .1008 (1)) f
0.77 (unitless) Permit # rC�W l 0l00 Dal-) I n!
Rainfall intensity: 1-yr, 24-hrstorm
Pre -development 1-yr, 24 hr peak flow
_
3.85 inlhr b>)- ^9� 10 NC Ol ision of cf1t, ',ht luq
0.70 il Revlsi— Data,
Posi-development 1-yr, 24-hr peak flow
She t
2.40 fi'Isec
Pre/Post 1-yr, 24-hr peak control
1.70 ft'fsec
Storage Volume: Non -SA Waters
Minimum required volume
2,336A0 fi `
Provided volume
2,479.00
Sediment storage volume provided
619,75
Storage Volume: SA Waters
1.5' runoff volume
ft�
Pre -development 1-yr, 24-hr runoff volume
W
Past-developmenl 1-yr, 24-hr runoff volume
ft3
Minimum required volume
It
Provided volume
ft3
Sediment storage volume provided
It,
Basin Design Parameters
Drawdown lime
3.00
days
i f
Sl elevation
558.00
fmsl
Basln bottom elevation
561.00
fmsf
Ox
Storage elevation
562.50
fmsl
Basin side slopes
3.0
:1
OK
Top elevation
564 00
fmsl
OK
Freeboard provided
150
It
OK
Basin Bottom Dimensions
Basin length
47.00
fj
Basin width
29,00
fl
Length to width ratio
1.62
f
r;.ir,
Fonn SW401-Dry Extended Detention Basin-Rev.3 Farts I. & 11. Design Summary, Page 1 of 3

Permit No. S W'I 10 10 a 1
{to be provided by DWOJ
Additional Information
Total runoff volume captured by basin 11.68 ac-in Forebay is not required
Forebay provided N (Y or N)
Is basin in a recorded drainage easement? N (Y or N) Need to a recorded drainage easement
Does basin capture all runoff at ultimate build -out? y (Y or N) OK
Is a sediment depth indicator included? y (Y or N) OK
Dees the basin include a drain? �x (Y or N) OK
Form SW40I-Cry Extended Delention Basin-Rev.3 Parts I. & II. Design Summary, Page 2 of 3

.'`C7l11Q5�
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely lilted out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
1.` I?ROJEC7IN M 71.
Project name PEC Ramseur Substation
Contact name Virginia Russell, PE
Phone number 919.881.9939
Date 10,21,11
Drainage area number B
IL;DESIGN INFORMATION,:-L.".
For Level Spreaders Receiving Flow From a BMP
Type of 8MP Dry Detention Pond
Drawdown flow from the BMP 1.10 cis
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the 1 inihr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10•yr storm
Where Does the Level Spreader Discharge?
To a grassed biorelention cell?
To a mulched biorelention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downsiope base of level lip
Elevation at top of bank of the receiving water
Slope (from ievel lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer 'Y' to one of the following:
Length based on the 1 inlhr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
i ,not comfle'e this 5eclfon cf 6e vrork%he.!I.
ry� DC ncl cpmplote Ihis seclion,:f thn v erkshcol
f1' Do nol conidere Leis section of the ;,aorksh"�I.
% Do not canplete ihis seclion of the worksheol
0C ncl comple'e Ihis tpclioa of the vrorkr.heel,
cfs Do i iol c omp'.ele Ihis seclion :.I the worksheel.
min
in/hi Da not conple!e this seclion of the, wwksheal.
cfs Do nol complete I's seclion of the warksheol,
N (Y or N)
N (Y or N)
N (Y or N)
Y (Y or N) Please cnnpla:,; fi!cr sln;i eharackirizauon below
50.00
It
0.00
ft
0.00
ft
50.00
it
559.00
fmd
556.00
fmsl
6.00
% ul.
n
(Y o[ N� OF
sq ft
13 fttcfs
(Y or N)
Y (Y or N)
(YorN)
t.00 cfs
N (YorN)
Approved .;,ocunnenis;
Gonstruction in accordalr:%.,:fi .jese documents iv
rmquired by the stormwatci permit. North Carolimr)
rulos ie•Zulro that the si :rrnw,::.i, ,ys[e1n designer
Inapeet during constru- •+ion: C".. rtify conformity with thav
plans and aril certif; ccinpliance with the
i!,Vrnwater rules (15a, N(;�%C 2H .1008 (j) )
t'etmitf#..-,4✓q IV) 00 1 Dew 1 c. , r .r
b+d_p D - _ MC Di..ision of Wahj1 _:1u li1y
Revisi— Oate i%� 3+ r a
Ho lov�bay Ti nepeej.
A byp:i_is if•YlCF, iE I;:)I IIer..ad.
Form SW401-Levei Splendor, Filler Strip, Restored Riparian Buffor"Rov.5 Parts I. and II. Design Summary, page 1 of 2

Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
8
1+1j
Y
Peak velocity in the channel during the 10•yr storm
Channellfnirg material
25.00 h
N (Y or N)
I I
f� F
IL u {1
e 1' •
(Y or N) Do oal ror,*c: i i3 section ct lha wcfk :heel.
(Y or N) Do nol t�oraplete;his section of tha worksheel,
Do not cwmple:e This ;Action cf OF,, uartw heel,
ft Do not complete Ihi: section of tho-worksloeet.
ft Po not complete this seclicm of the vr;r1 sheet.
ft l not :�mplcte this section of the worksheef.
ft Co nol r,'Ompleie this r,aclion of the wrxksheel,
cfs t o nol complete ibis section of the worksheel.
Co not twrnplek,' this section of the wclkshael,
Form SW40t-Lovol Spreader, Filter Strip, Restored Riparian Butter-Rev.5 Parts I. and 11. Design Slrmmary, page 2 of 2

Permit No.SW4101001
'...PROGRESS ENERGY RAMSEUR 115/24KV SUBSTATION
Stormwater Permit No. 5W4101001
Randolph_ County
Designer's Certification.
;� ��
'.,�6y-Q.(, , as a duly registered L _�' _ __ � in the State of
`'` North. Caro a, having been authoriied to observe (periodically) weziefytft+lirt'rei-the construction -of
the.project,
-Progress Energy -Ramseur 1151.20V Substation
(Project)
Ca�v1 i►�s it t� • .
:".;; '' •:: ; .for?Yo4fc�ts (Project Owner) hereby state that, to the best of my abilities,
` :..due care and diligince'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 ftom approved -plans and specification:
;.>;
SEAL
Signature . 1
'Reg
�
istration Number E). .'3l0 2_ t (�._ _ `�� C A R O
y Date
%a� �2�'�'y
SEAL r
�NGIh�'S5�'`
GI N!1 A
Page 5 of 6

State Stormwater Permit
Permit No.SW4101001
;Certification .Requirements:
1.
The drainage,area:to the system contains approximately the permitted acreage.
1
The drainage area to. the system contains no more than the permitted amount of built -
...:upon area.
-All built -upon area associated with the project is graded such that the runoff drains to
the system..
NIA": 4.
All roof drains are located.such that the runoff is directed into the system.
_
✓.
,The outiet/bypass structure, elevations.are per the approved. plan..
6.-
The outlet.strutture 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 steeper than IL
The inlets are located per the approved plans and do not cause short-circuiting of. the
.system.'
11.
The permitted amounts of'surface area and/or volume have been provided.
_12..:
` .Required drawdown devices are correctly sized per the approved plans.
13.
depths
All,required design are provided.
14.
All .required parts of the system are provided, such as a.vegeta ted•shelf, and a
forebay, if•required.
.
The
required system dimensions are provided per the approved plans.
Please submit: this'Designer's Certification to: DWQ Winston-Salem Regional Office
Surface Water Protection
585 Waughtown Street
Winston-Salem, NC 27107
Pagq 6 of 6

���
"''~=®
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Richard A Brown
Progress Energy Carolinas
PO Box 1981 - TPP 18
Raleigh, NC 27602
Division of Water Quality
Coleen H. Sullins
Director
October 31, 2011
Subject: Stormwater Permit No. SW4101001 Modification
Progress Energy Ramseur 115/24kV Substation
High Density Utility Project
Randolph County
Dear Mr. Brown:
Dee Freeman
Secretary
The Stormwater Permitting Unit received a revised and complete Stormwater Management Permit Modification
Application for Progress Energy Ramseur Substation on October 28, 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 modified Permit No. SW4101001,
dated October 31, 2011, for the construction, operation and maintenance of the subject project and stormwater
BMPs. This modified permit includes the extension of the driveway, and keeping the temporary construction
entrance as permanent.
This permit shall be effective from the date of issuance until December 16, 2020, and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for inspection and maintenance of the
stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request
an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request
must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and
filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 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 Robert Patterson at [phone] or
[e-mail].
Sincerely, �1 , cc: SW4101001 File
/ �� ��;c� cc: Sue Homewood -Winston-5alcm Regional Office
%/ ✓�-c' Virginia Russell - Dewberry & Davis, inc.
forColeen H. Sullins Dilton Cook -- Progress Energy Caroli;tas
Wetlands a� rl Slur, water Branch
1v17 Mail 5ervir.t! r ent, r, Raieicgh, North Cam; :a:"699- 617
I r,calicn. 512 N. S.iiisht ry Si. Raleigh, North (,arolirr! 27':1=1
:.ow 919.847-8' 0 =AX . i 9-B07-64941 C. ,ln rer rvice: 1-877-62'' :71^
L ,,rnet: www,i!ra. ,,er,,,uaiily -.1
One
11-4orthCarol:iii,
.Naturals 1
.qualopp.m,,3 ,-t;rnaGa^'-AvrEmpic,c

State Stormwater Permit
Permit No. SW4101001
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY UTILITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Progress Energy Carolinas
Progress Energy Ramseur 115/24kV Substation
357 King Road, Ramseur, Randolph County
FOR THE
construction, operation and maintenance of two (2) extended dry detention basins in series followed
by a level -spreader and vegetated filter strip in compliance with the provisions of 15A NCAC 2H .1000
and S.L. 2006-246 (hereafter referred to as the "stormwaterrule5'1 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 December 16, 2020, and shall be subject
to the following specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6 of this permit. The stormwater control has been designed to handle
the runoff from 29,185 square feet of impervious area.
3. The stormwater system drainage area will be limited to the amount of built -upon area
indicated in Section 1.6 of this permit, and per approved plans, resulting in an impervious
percentage of 83%. The total project impervious percentage is limited to 54%.
4. All stormwater collection and treatment systems must be located in either dedicated common
areas or recopied easements. Tire final plats for the project will be : ~corded showing all such
required easer>nents, in accordance with the approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
6. The following design criteria have been provided in the stormwater system and must be
maintained at design conr4ition:
Page 1 1 k

State Stormwater Permit
Permit No.SW4101001
Al. Dry Extended Detention Basin #1 for drainage area B as per the attached approved
Dry Extended Detention Basin Supplement dated October 21, 2011 and approved
October 31, 2011.
A2. Dry Extended Detention Basin #2 for drainage area B as per the attached approved
Dry Extended Detention Basin Supplement dated October 21, 2011 and approved
October 31, 2011,
A3. Level Spreader with Vegetated Filter Strip for drainage area B as per the attached
approved Level Spreader, Filter Strip and Restored Riparian Buffer Supplement dated
October 21, 2011 and approved October 31, 2011.
B. Receiving Streams/River Basin: Deep River / Cape Fear Basin
C. Stream Index Numbers: 17-(10.5)
D. 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 intended use prior to the construction of any built -upon surface.
2. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately.
3. The permittee shall at all 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 (everynonths),
b. Sedlti%—(removal.
C. Mowing and revegetation of slopes and the 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 be kept and made available upon request to
authorized personnel of DWQ. The records will indicate the date, activity, name of person
performing the work and what actions were taken.
5. The facilities shall be constructed as shown on the approved plans. The stormwater treatment
system shall be constructed in accordance with the approved plans and specifications, the
conditions of this permit, and with other supporting data.
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 pans and specifications must be noted on
the Certification. A modification may be required for those deviations.
7. If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation �js a stormwater treatment device, and prior to occupancy of the
facility.
Page 2 )f 3

State Stormwater Permit
Permit No. SW4101001
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 approved
plans, including, but not limited to, those listed below;
a. Any revision to any item shown on the approved plans, including the stormwater
management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the drainage
area.
e. Further subdivision, acquisition, lease or sale of all or part of the project area. The
project area is defined as all property owned by the permittee, for which
Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved
plan.
10. The permittee shall submit final 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 permittee when the permitted site does not meet one or more of
the minimum requirements of the permit. Within the time frame specified in the notice, the
permittee shall submit a written time schedule to the Director for modifying the site to meet
minimum requirements. The permittee shall provide copies of revised plans and certification in
writing to the Director that the changes have been made.
III. GENERAL CONDITIONS
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 request will be considered on its
merits and may or may not be approved.
2. The permittee is responsible for compliance with all permit conditions until such time as the
Division approves the transfer request.
3. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to enforcement action by the Division of Water Quality, in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances, which may be imposed by other government
agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be
required by this Division, such as the construction of additions I or replacement ;tormwater
management systems.
6. The permittee grants DENR Staff permission to enter the property during normal business
hours for the purpose of inspecting all components of the permitted stormwater management
facility.
i a(;e of 6

State Stormwater Permit
Permit No.SW4101001
7. The permit issued shall continue in force and effect until revoked or terminated. The permit
may be modified, revoked and reissued or terminated for cause. The filing of a request for a
permit modification, revocation and re -issuance or termination does not stay any permit
condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must
follow the guidelines established in the North Carolina Erosion and Sediment Control Planning
and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference and are
enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws,
rules and regulations contained in Session Law 2006-246, Title 15A NCAC 2H.1000, and NCGS
143-215.1 et.al.
11. The permittee shall notify the Division of any name, ownership or mailing address changes at
least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and documentation at
least 180 days prior to the expiration date of this permit.
Permit issued this the 3151 day of October, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
forColeen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Pb.je 4 of 6

State Stormwater Permit
Permit No.SW4101001
PROGRESS ENERGY RAMSEUR 115/24KV SUBSTATION
Stormwater Permit No. SW4101001
Randolph 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,
(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
F;ige5ofC.

State Stormwater Permit
Permit No. SW4101001
Certification Requirements:
1. The drainage area to the system contains approximately the permitted acreage.
2. The drainage area to the system contains no more than the permitted amount of built -
upon area.
3. All built -upon area associated with the project is graded such that the runoff drains to
the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. Vegetated slopes are no steeper than 3:1.
10. The inlets are located per the approved plans and do not cause short-circuiting of the
system.
11. The permitted amounts of surface area and/or volume have been provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, and a
forebay, if required.
15. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to: DWQ Winston-Salem Regional Office
Surface Water Protection
585 Waughtown Street
Winston-Salem, NC 27107
Fige6ofC '

(to pi,:vidL , by DWC}
HCDENR
S CORMI DATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 1/1) must be printed, filled out and submitted along with all the required information,
Project name
Contact person
Virginia
Phone number
Date
*
10.21r11w
Drainage area number
B
I I L"? 6 E S I G U I N F 0 R MAT 10 N
'Site Characteristics
Drainage area 35,28100'
Impervious area 29J85.007411le
% Impervious 0.83
Design rainfall depth r?�r' " 1'. 00Y, ','i n Gonstructior in accordar•^,, v, i*
Peak Flow Calculations
1 -yr, 24-hr rainfall depth :2.89ar in
Rational C, pre -development
, Rational C, post -development 0 77& .,,,(unitless)
Rainfall intensity: 1 -yr, 24-hr storm
Pre -development 1-yr, 24-hr peak flow :A.70`-'t`f:ft3/sec
Post -development 1-yr, 24-hr peak flow 2AOW1�''i;.'Wlsec
Pre/Post 1 -yr. 24-hr peak control 1.70 0sec
Storage Volume: Non -SA Waters
Minimum required volume
Provided volume -2,479,00U. 4�'�-11 ;' 3 ft3 OK
Sediment storage volume provided 61915�: OK
Storage Volume: SA Waters
1.5' runoff volume ft,
Pre -development 1 -yr, 24-hr runoff volume 3
Post -development 1-yr, 24-hr runoff volume ft,
Minimum required volume ft,
Provided votume 3
ft Sediment storage volume provided 3
Basin Design Parameters
Drawdown time 3.601' days OK
SHWT elevation 558,Wo',:. fmsI
Basin bottom elevation 561 _00.1,;, fms) 0K
Storage elevation 562.50', fmsl
Basin side slopes 3.0' .'; : 1 OK
Top elevation 564.007 fmsI OK
Freeboard provided 1. 50;, N OK
Basin Bottom Dimensions
Basin length 47.00-. ft
Basin width 29.00 ft
Length to width ratio 1.62:: :1 OK
"
required by inp Siorm%vale; 1N(jr-th C1.Aocun)F_-rjtS n
arolin.-j-
fules require that the de6ig?ier
Inspect during ronz;tru,, f'Oflf0i'Mity with tha.
plans and SlDef,:3; Urlco cerlif) .c r,t,',)liance with the
�;-Orrnwater miles. (15,k NCAC 2H .1()08 (j))
Permit #.5 k1H ) 0 f a 0 j Dal
b,,,, W ___
NC D ;Jsion of VVale r Q I -ty
REviskI.-I Dale —/ '/ I
Form SW401 -Dry Extended Detention Basin-Rev.3 Paris I. & 11. Design Summary, Page 1 of 3
Storage Volume: SA Waters
1.5' runoff volume ft,
Pre -development 1 -yr, 24-hr runoff volume 3
Post -development 1-yr, 24-hr runoff volume ft,
Minimum required volume ft,
Provided votume 3
ft Sediment storage volume provided 3
Basin Design Parameters
Drawdown time 3.601' days OK
SHWT elevation 558,Wo',:. fmsI
Basin bottom elevation 561 _00.1,;, fms) 0K
Storage elevation 562.50', fmsl
Basin side slopes 3.0' .'; : 1 OK
Top elevation 564.007 fmsI OK
Freeboard provided 1. 50;, N OK
Basin Bottom Dimensions
Basin length 47.00-. ft
Basin width 29.00 ft
Length to width ratio 1.62:: :1 OK
"
required by inp Siorm%vale; 1N(jr-th C1.Aocun)F_-rjtS n
arolin.-j-
fules require that the de6ig?ier
Inspect during ronz;tru,, f'Oflf0i'Mity with tha.
plans and SlDef,:3; Urlco cerlif) .c r,t,',)liance with the
�;-Orrnwater miles. (15,k NCAC 2H .1()08 (j))
Permit #.5 k1H ) 0 f a 0 j Dal
b,,,, W ___
NC D ;Jsion of VVale r Q I -ty
REviskI.-I Dale —/ '/ I
Form SW401 -Dry Extended Detention Basin-Rev.3 Paris I. & 11. Design Summary, Page 1 of 3
"
required by inp Siorm%vale; 1N(jr-th C1.Aocun)F_-rjtS n
arolin.-j-
fules require that the de6ig?ier
Inspect during ronz;tru,, f'Oflf0i'Mity with tha.
plans and SlDef,:3; Urlco cerlif) .c r,t,',)liance with the
�;-Orrnwater miles. (15,k NCAC 2H .1()08 (j))
Permit #.5 k1H ) 0 f a 0 j Dal
b,,,, W ___
NC D ;Jsion of VVale r Q I -ty
REviskI.-I Dale —/ '/ I
Form SW401 -Dry Extended Detention Basin-Rev.3 Paris I. & 11. Design Summary, Page 1 of 3

Pprrrit No.
'o be Ljrr­,dcd by DWO)
Additional Information
ntal runo4volurne -.aplureJ by basin 0.68 oreba,, is not required
I irebay provided N-.I. '(Y or N)
fs basin in a recorded drainage easement? N 0, (Y or N) Need to a recorded drainage easement
Does basin capture all runoff at ultimata build -out? (Y or N) OK
Is a sediment depth indicator included? OK
Does the basin include a drain? or N) OK
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I. & 11. Design Summary, Page 2 of 3

S Wq t 0; ? C.,I
Pr:r nit N:,.
(to be pm d b),
'We
STORMI lATEF Cl.L1L3t!
MANAGEMENT GERM i APPLICATION rORM
NCDENR
GY
401 CERTIFICATION APPLICATION FORM
DRY EXTENDED DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checki,st (Part 111) must be printed, filled out and submitted along with all the regtired information.
I: PROJECT, INFORMATIOH -Wnr U
:e
Project name
PEC_Rai6si&SU'6kad&ri -:Second Dry_t)efention Basin in,tfi&_Series2 ;
Contact person
Viiginie Russell, P,E
Phone number
919881:9939t ,:.: { h., '•,
s ry s
Date
Drainage area number
'73'1- t' "ix �" C'L:..".zz R ^^wrr;^.�,`'7r."r3.v -a"' �':t rck w.< w.r• y:,
II413ESlGNi(HFQRMATION..�..�'��".������.��r�,:'1'+�:=`����:��%��-��a,rr���.�.�._.�,
Site Characteristics
Drainage area
35,283.00' ' fe
Impervious area
29;185,00 �iZ fe
%Impervious
0.83 ;1gs7roue :s�.att:�trr.�:;:r ;`;;;'eraii s:ucumentg;
Design rainfall depth
-;11'.00 'in Construction in accordarac4 vvjih :.1cse documents is
rr quired by We stormwatel t,L•n -iil,. North Carolinn
Peak Flow Calculations
rules require that the sr.:rmr i y rent designer
1-yr, 24-hr rainfall depth
289 ;in Inspect during construr?ion; certiry conformity with thw
Rational C, pre -development
Rational C, post -development
"0,23 '(unitless) plans and spe,;% and certify r,a mpliance with the
`�arfnyvater rules. (15A NCAC 2H .1008(j))
`0.77 { r (unitless) Permit ##-SW 1 t110o I Date f ci3?1!
Rainfall intensity: l-yr, 24-hr storm
Pre -development 1-yr, 24•hr peak flow
'3:85 F initlr b„�y? NC Gi:-ision of Watef Q, Nty
0.70 ft3lsec t,L q fI "— Revisi—
Post -development 1-yr, 24-hr peak flow
_
2:40;,:d, ,a'ft3tsec
Pre/Post t-yr, 24-hr peak control
1.70 ft'/sec
Storage Volume: Non -SA Waters
Minimum required volume
2;336.K`r`.1;;, ft3
Provided volume
2,479.00-ff3 OK
Sediment storage volume provided
619.75". ;;: ff3 OK
Storage Volume: SA Waters
1.5' runoff volume
ft3
Pre -development 1-yr, 24-hr runoff volume
f13
Post -development 1-yr, 24-hr runoff volume
ff3
Minimum required volume
ft,
Provided volume
- ff3
Sediment storage volume provided
It
Basin Design Parameters
DrawdGwn time
_ 3.00:. = _days OK
SHWf elevation
558.00:" fmsl
Basin bottom elevation
561.00 :' fmsl OK
Storage elevation
562.50 ?` fmsl
'Basin side slopes
3.0 :1 OK
Top elevation
564.00 _ ' fmsl 0K
Freeboard provided
1.50 ' ft CK
Basin Bottom Dimensions
Basin length
47.00%. ft
Basin width
29.00' ft
Length to width ratio
1.62 :1 0K
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I. & II. Design Summary, Page 1 of 3

Permit N-, 10 1 C) C-) ,
be provided by i ,VO)
Additional 11orrination
f
Total runoff iolu me captured by basin 'c -orebay is not rqu­el
Foiebay provided
(Y or N)
Is basin in a recorded drainage easement? (Y or Na Need to a recorded drainage easement
Does basin capture all runoff at ultimate build -out? or N) OK
Is a sediment depth indicator included?
(Y or N) OK
Does the basin include a drain? (Y or N) OK
Form SW401 -Dry Extended Detention Basin-Rev.3 Parts I. & M. Design Summary, Page 2 of 3

MEW
i7jg.'
S rORMWATER MANAGLMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
Project name
Contact name
Phone number
Date
Drainage area number
For Level Spreaders Receiving Flow From a BMP
Type of BMP
Drawdown flow from the BMA
For Level Spreaders Receiving Flow from the Drainage Area
Drainage area
Impervious surface area
Percent impervious
Rational C coefficient
Peak flow from the f inlhr storm
Time of concentration
Rainfall intensity, 10-yr storm
Peak flow from the 10-yr storm
Where Does the Level Spreader Discharge?
To a grassed Noretention cell?
To a mulched bioretention cell?
To a wetland?
To a filter strip or riparian buffer?
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass
Width of dense ground cover
Width of wooded vegetation
Total width
Elevation at downslope base of level lip
Elevation at top of bank of the receiving water
Slope (from level lip to to top of bank)
Are any draws present?
Level Spreader Design
Forebay surface area
Feet of level lip needed per cfs
Answer 'Y' to one of the following:
Length based on the 1 inihr storm?
Length based on the 10-yr storm?
Length based on the BMP discharge rate?
Design flow
Is a bypass device provided?
Virginia Russell',PE.` r <t it r r`z F i' j
919-881=9939 1021 11
Dry Defeitton Pond" I , • � ,� • ,,,; t
cfs
Do not complete this section of the wrrksheet.
Do not complete this section of the worksheot.
Do not complete this section of the,=Vsheet.
%
Do not complete this section of the worksheet.
Do not complete this section of the worksheat.
cfs
Do not compete this section of the worksheel
min
,._. inittf
Do nai complete Ihis section of the worksheet.
cfs
Do not complete this section of the worksheel.
N(Y or N)
Nr;;., , (Y or N)
Please complete filter strip characterization below,
50100:'S
_ ft
0,00"',,
. ft
0'O.O r"::.:.,
It
559.00,
, fmsl
556'00<.-
fmsl
6.00
% OK
n
(Y or N) OK
Gonstruction in accordvrs�� , ,T;kh -.iese documents i-
inquired by the stormwaiei prcjfwul. North Carolin
rules require that the sL,. rrnin,:.; .ystat:a debigner
Inspect during construe?ion; certify conformity with th;
plans and spo ,s; :ano earth; cr.,;i3pliance with the
!.',,P Rlwater rules. (15A NCAC 2H .1008 (j) )
Permit #-.-Si't''t Ib/ 'L i Date t a 3i r
td"C C'-tiJsion of Water Qu ftty
Revising, Date I u/Z 1 1 r
sq ft No forebay is needed.
13 fVcfs
(Y or N)
Y (Y or N)
(Y or N)
1.00 , cfs
N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 of 2

Le-• M of Ttie Lvel lip
Are wel !,Prc iders in series?
Bypass Chanel Drsign (if applicabir)
Does the bypass dis(,;iarge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
8
W
y
Peak velodly in the channel during the 10-yr storm
Channel lining material
----------
M
B
o o'
'25,M ft atVAUUI�-
N.): ly or
(Y or D not complete this section vf Ili; worksheet
i.(Y or N) Du not complete this section of the worksheet
00 not comptwe this section of the worksheal
section of thavio6sheei
Da not comple!e This
ft
Do Rot complee ihis section or the worksheet.
-7;.
Do not comp!(I;e This section of the ftfthee,.
ft
Do not comp) [e I his section of I tie works hee!.
Cfs
Do not comps -a this section of the woOqheel.
to not complete this section of lhehvrkshect.
Form SW401 -Level Spreader, Filter Strip, Restored Riparian Duffer-Rev.5
Parts I. and 11. Design Summary, page 2 of 2

'DWQUSE ONLY .,.
Date Received Fee Paid
Permit Number
rU io oS
SVLt 101dco/
Applicab e R les: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 2'Ph II - 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 form ruay be photocopied for use as an original
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans,
specifications, Ietters, operation and maintenance agreements, etc.):
Progress Energy Carolinas - Ramseur 115 kV Substation
2. Location of Project (street address):
357 King Road
City:Ramseur County:Randolph Zip:27316
3. Directions to project (from nearest major intersection):
From Raleigh, take US-64W toward Pittsboro/Asheboro (approx. 50 miles). Turn right on King Road. T he
substation will be approximately 0.3 miles down Kin Road on the left.
4. Latitude:34' 44' 35.9" N Longitude:79' 38' S7.7" W of the main entrance to the project.
H. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ❑New Modificati
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) 12-17-2010 , and the status of
construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification.
,j lt/VPG f cot
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, 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: 1.5 ac of Disturbed Area
❑NPDES Industrial Stormwater ❑404/401 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: Acquired an Erosion and Sedimentation Control Permit on 9-15-2010.
,vLl Y
1 I 1 lilif
1
DENR - WATER QUALITY
Form SWU-10! Version 07Jun2010 Page I o#'6
TtAN 1'�EDS AND STORMWATER BRAKH

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: Progress Energy Carolinas
Signing Official & Title:Richard A. Brown - General Manager of Tranmission Construction & Engineering
b.Contact information for person listed in item 1a above:
Street Address:100 East Davie
City:Raleigh State:NC Zip:27601
Mailing Address (if applicable):P. O. Box 1981 - TPP 18
City:Raleigh State:NC Zip:27602
Phone: (919 } 546-3122 Fax: (919 } 546-7552 _
Email: [e-mail]
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. (This 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 Address:
City:
Mailing Address (if appIicable):
City:
Phone: ( 1
Email:
State:
Zip:
State: Zip:
Fax:
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: Buzz Bryson _
Signing Official & Title:Lead Environmental Specialist
b.Contact information for person listed in item 3a above:
Mailing Address:P. O. Box 1551 - TPP 16
City:Raleigh State:NC Zip:27602
Phone: (919 ) 546-6637 Fax: (919 ) 546-6386
Email:[e-mail]
4. Local jurisdiction for building permits: Randolph Count
Point of Contact:David Brest _ Phone #: [phone]
Form 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 the substation expansion will be routed to two dry detention basins in series, then to
the levels reader and engineered filter strip. The dual basins will be sel2arated with a fiberglass baffle.
Offsite flow will be bypassed around the BMPs.
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 II - Post Construction
3. Stormwater runoff from this project drains to the Cape Fear _ River basin.
4. Total Property Area: 1.5 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area': 1.5 acres
Total project area shall be calculated to exclude the followin the normal pool of impounded structures, the area
between the banks of strearns and rivers, the area below the Normal High Water (Nh[W) line or Mean High Water
(MHW) lire, and coastal wetlands landward from the NHW (or MHW) line. Tile resultant project area is used to
calculate overall percent built upon area (BUA). Notr-coastal wetlands landward of the NHW (or MHW) line tnay
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 54 %
9. How many drainage areas does the project have? 2 (For high density, count I for each proposed engineered
stormwater BMP. For low densihf and other projects, use 1 for the whole property 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.
Basin Information'
Draina e Area
Draina e Area
Draina e Area
Drama e Area
Receiving Stream Name
Deep River
Stream Class
C
Stream Index Number *
17-(10.5)
Total Drainage Area (so
35,283
On -site Drainage Area (so
35,283
Off -site Drainage Area (so
0
Proposed Impervious Area** s
29,185
% Impervious Area** total
83%
Impervious— Surface Area
'Drains e Area"
Drainage`Area.
-Drains e'Area _
Draina e Area
On -site Buildings/Lots (so
0
On -site Streets (so
0
On -site Parking (so
0
On -site Sidewalks (so
0
Other on -site (so
29,185 (stone)
Future (so
0
Off -site (so
0
Existing BUA*** (so
0
Total (so:
1 29,185
* Stream Class and Index Number can be determined at: http.- portal.nederrr.oryAuet)AiJg&s/cstr/classifrcations
Form SWU-101 Version 07Jun2010 Page 3 of 7

Iru ervious 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 BUA that
is to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area fisted above determined? Provide documentation. No offsite
impervious drains to the BMP.
Proleets in Union County: Contact DWQ Central Dice staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management 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 http://portal.ncdenr.ori ,/web/wq/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 h_ttp://Rortal.ncdenr.org/web/wqf ws/su1statesw_/forms_docs. 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 map athttl2://i2ortal.ncdenr.org/web/wq/ws/su/maps.)
Please indicate that the following required information have been pLovided 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 http://portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form. LD C
2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants lU /A
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M �-D �-
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to
http://www.envhelp.org/pages/onestopexpress.html for information on the Express program
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 G D L
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 G D �-
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the'/z
mile radius on the map.
7. Sealed, signed and dated calculations.�-
8. Two sets of plans folded to 8.5" x 14" (sealed, 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
waters, 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 MHW (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.
Form SWU-101 Version 07Jun2010 Page 4 of

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 (PIease 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 BMPs, 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 SHWT prior
to submittal, [phone].)
10. A copy of the most current property deed. Deed book: 1087 Page No: 28 L 1] L
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC —/�/A�
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H.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.
http://www.secretary.state.nc.us/Corporations/"CSearch.asj2x
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 Iot 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
littp//portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs. 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 sale of any lot.
Vill. 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-T. Virginia Russell
Consulting Firm: Dewberry & Davis, Inc.
Mailing Address:2301 Rexwoods Dr, Suite 200
City:Raleigh State:NC Zip:27607
Phone: (919� ) 881-9939 Fax: (919 ) 881-9923
Email:fvrussell®dewberry
Form SWU-101 Version 07Jun2010 Page 5 of 7

IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, coniplete this
section)
I, (print or type name of person listed in Contact Information, item 2a) , certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1 a) with (print or hjpe name of organization listed in
Contact Information, item 1a) 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.
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. 1 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:
I, . a Notary Public for the State of
do hereby certify that
before me this day of
County of
personally appeared
. and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-101 Version 07Jun2010 Page 6 of 7

X. APPLICANT'S CERTIFICATION
I, (print or hype narue of person listed in Contact Information, item 1a) Richard A. Brown
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 nder 15A NCAC 2H .1000, SL 2006-246 (Ph. 11 -Post Construction) or SL 2008-211.
Signature: �' Date: �Z�r7 /Z� I
fi
1, f2Y4` QI' i a Notary Public for the State of NG County of
ruo► do hereby certify that (1_i�Jlto personally appeared
before me this � day of _ion®beY 011 and no ge t e execution of the application for
a stormwater permit. Witness my hand and official seal,
------ EAL
Otf1cw Seal
North Carolina • Wake Coa
C:AROLYN HARDING
Notary Public O/5
------ -- -- y commission expires_ �1" a-e
Form SWU-101 Version 071un2010 Page 7 of

Permit No. W `t l o rmof
fro be provided by DWQ)
wAr�Ro�
A� F — RECEIVED - o�oF
A STORMWATER MANAGEMENT PERMIT APPLICATION FOORM h.c. Deot. of sNR > y
NCDENR I `
401 CERTIFICATION APPLICATION FORM JAN 2 4 2011
DRY EXTENDED DETENTION BASIN SUPPLEMENT Winston -sale
This form must be filled out, printed and submitted. R c.on.ii Offre
The Required Items Checklist (Part /Il) must be printed, tilled out and submitted along with all the required information.
I;PRODECTJINF,ORMATION
Project name PEC Ramseur Substation - First Dry Detention Basin in the Series -1
Contact person Virginia Russell, PE
Phone number 919-881-9939
Date 11.24.10
Drainage area number B
Site Characteristics
Drainage area
29,185.20
ft2
Impervious area
23,086.00
ft2
°% Impervious
0.79
Design rainfall depth
1.00
in
Approved Storiviwa:,:l : L -nit Documents
Construction in accordan^ witn „lose documents is
Peak Flow Calculations
required by the stormwater perrnit. North Carolina
1-yr, 24-hr rainfall depth
2.89
in
rules require that the stormwa.. , system designer
Rational C, pre -development
0.23
(unitless}
Inapeet during construction; certify conformity with the
plans and specs; and certify compliance with the
Rational C, post -development
0,77
(unitless)
stormwater rules. (15A NCAC 2H .1008 (j) )
Rainfall intensity: l-yr, 24-hr storm
3.85
inlhr
Permit #__,<Wf{ j O 0o Date i (7 Lt 0
Pre -development 1-yr, 24-hr peak Flow
0.60
ft'/sec
by C(., NC Division of Water
Post -development 1-yr, 24-hr peak flow
2.00
ft/sec
Sheet # -Revision Date( !�=j0
Pre/Post 1-yr, 24-hr peak control
1.40
ft/sec
Storage Volume: Non -SA Waters
Minimum required volume
1,863.00
ft'
Provided volume
2,096.00
rya
OK
Sediment storage volume provided
524.00
-ft'
OK
Storage Volume: SA Waters
1.5" runoff volume
ft3
Pre -development 1-yr, 24-hr runoff volume
ft3
Post -development 1-yr, 24-hr runoff volume
ft3
Minimum required volume
ft3
Provided volume
ft3
Sediment storage volume provided
rya
Basin Design Parameters
Drawdown time
2,70
days
OK
SHVVT elevation
558.00
fmsl
Basin bottom elevation
561.00
fmsl
OK
Storage elevation
562.30
fmsl
Basin side slopes
3.0
:1
OK
Top elevation
564.00
fmsl
OK
Freeboard provided
1,70
ft
OK
Basin Bottom Dimensions
Basin length
47.00
ft
Basin width
29.00
ft
Length to width ratio
1.62
:1
OK
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I. & II. Design Summary, Page 1 of 2

Permit No. I
(to be provided by DWO)
Additional Information
Total runoff volume captured by basin 0.58 ac-in Forebay is not required
Forebay provided N (Y or N)
Is basin in a recorded drainage easement? N (Y or N) Need to a recorded drainage easement
Does basin capture all runoff at ultimate build -out? y (Y or N) OK
Is a sediment depth indicator included? x_ (Y or N) OK
Does the basin include a drain? y (Y or N) OK
Form SW401-Dry Extended Detention Basin-Rev-3 Parts I, & It. Design Summary, Page 2 of 2

r " R Permit No. Sw ( #/&a !
(to be provided by DWQ)
� - — • - OF W A r�q
STORMWATER MANAGEMENT PERMIT APPLICATION FORM , y
NCDENR 401 CERTIFICATION APPLICATION FORM BAN 2 4 2011
DRY EXTENDED DETENTION BASIN SUPPLEMENT
Regional Office
This farm must be filled out, printed and submitted.
The Required Items Checklist (Part /I/) must be printed, filled out and submitted along with all the required information.
I11IRRMECAINFORMATION
Project name PEC Ramseur Substation - Second Dry Detention Basin in the Series - 2
Contact person Virginia Russell, PE
Phone number 919-881.9939
Date 11,24.10
Drainage area number B
tI11DESIWINF,ORMATION
Site Characteristics
Drainage area 29,185.20 ft2
Impervious area 23,086.00 ft2
%Impervious 0.79 A.ppro.ed Storrnwa-e,r 19, rai:t :)ocuments
Construction in atccordam^c vith :;iese documents is
Design rainfall depth 1.OQ in required by the stormwater perm it, North Carolina
Peak Flow Calculations
1-yr, 24-hr rainfall depth
2.89
in
Rational C, pre -development
0.23
(unilless)
Rational C, post -development
0.77
(unitless)
Rainfall intensity: 1-yr, 24-hr storm
3.85
inthr
Pre -development 1-yr, 24-hr peak flow
0.60
ft3lsec
Post -development 1-yr, 24-hr peak flow
2.00
ft3lsec
Pre/Post 1-yr, 24-hr peak control
1.40
ft3lsec
Storage Volume: Non -SA Waters
Minimum required volume
1,863.00
ft3
Provided volume
2,096.00
ft3
OK
Sediment storage volume provided
524.00
ft3
OK
Storage Volume: SA Waters
1.5' runoff volume
{f3
Pre -development 1-yr, 24-hr runoff volume
ft3
Post -development 1-yr, 24-hr runoff volume
ft3
Minimum required volume
ff3
Provided volume
ft3
Sediment storage volume provided
ft3
Basin Design Parameters
Drawdown time
2.70
days
OK
SHWT elevation
558.00
fmsl
Basin bottom elevation
561.00
fmsl
OK
Storage elevation
562.30
fmsl
Basin side slopes
3.0
:1
OK
Top elevation
564.00
fmsl
OK
Freeboard provided
1.70
ft
OK
Basin Bottom Dimensions
Basin length
47.00
11
Basin width
29.00
ft
Length to width ratio
1.62
:1
OK
rules require that the stormwat.,e Rystem designer
Inspect during construction; Lerttfy conformity with the
plans and specs; and certify compliance with the
stormwater rules. (15A NCAC 2H .1008 (j) )
Permit Date�'Zlf it0
by C �,. NC Dirision of Water. Quatty
Sheet # _ -Revision Date_(, (A
Form SW401-Dry Extended Detention Basin-Rev.3 Parts I, & II. Design Summary, Page 1 of

Permit No. �W qff e t ry 1 _
(to be provided by DWO)
Additional Information
Total runoff volume captured by basin 0.58 ac-in Forebay is not required
Forebay provided N (Y or N)
Is basin in a recorded drainage easement? N (Y or N) Need to a recorded drainage easement
Does basin capture all runoff at ultimate build -out? y (Y or N) OK
Is a sediment depth indicator included? _ y (Y or N) OK
Does the basin include a drain? y (Y or N) OK
Form SWa01-Dry Extended Detention Basin-Rev.3 Parts I. & 11. Design Summary, Page 2 of 2

STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted,
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEi
13P,RO�JECTf INFORMATION
Project name PEC Ramseur Substation
Contact name Virginia Russell, PE
Phone number 919.881-9939
Date 11.24.10
Drainage area number B i
II.qDESIG.NJINF,ORMATIQN
For Level Spreaders Receiving Flow From a BMP
Type of 8MP Dry Detention Pond
Drawdown flow from the BMP 0.80 cis
For Level Spreaders Receiving Flow from the Drainage Area
Do not complete this section of the worksheet.
Drainage area
ft2
Do not complete this section of the worksheet.
Impervious surface area
ft2
Do not complete this section of the worksheet,
Percent impervious
%
Do not complete this section of the worksheet,
Rational C coefficient
Do not complete this section of the worksheet.
Peak flow from the 1 iri storm
cfs
Do not complete this section of the worksheet.
Time of concentration
min
Rainfall intensity, 10-yr storm
inlhr
Do not complete this section of the worksheel.
Peak flow from the W-yr storm
cfs
Do not complete this section of the worksheel.
Where Does the Level Spreader Discharge?
To a grassed bioretention cell?
N (Y or N)
To a mulched bioretention cell?
N (Y or N}
To a wetland?
N (Y or N}
To a filter strip or riparian buffer?
Y (Y or N} Please complete filter strip characterization below.
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Approved Si.orrnwalt•- i �- :. ;;,1,t ': ocuments
Width of grass
50.00
It
Construction in accordan:�e v,;w „tese documents is
Width of dense ground cover
0.00
ft
required by the stormwater pPrmlt. North Carolina
rules require that the storm n; ;,_r system designer
Width of wooded vegetation
0.00
ft
Inspect during construction, cwtify conformity with the
Total width
50.00
ft
plans and specs: and certify compliance with the
Elevation at downslope base of level lip
559.00
fmsl
stormwater rules. (15A NCAC 2H .1008 (j)
Permit # SW Lf f e � pe► j Date � Z/ (y�f d
Elevation at top of bank of the receiving water
556.00
fmsl
by �- �NC
Slope (from level lip to to top of bank)
6.00
% OK
Division of Water ur,�l{ty
Sheet #� Revisicr D'ate__ ��
Are any draws present?
n
(Y or N) OK
-- —�' 1- • •I•
Yf 0
Level Spreader Design
Forebay surface area
Feet of level lip needed per cis
Answer "Y" to one of the following:
Length based on the 1 inlhr storm?
Length based on the 10-yr storm?
Length based on the 8MP discharge rate?
Design flow
Is a bypass device provided?
sq ft
13 fuefs
(Y or N)
Y (Y or N)
(Y or N)
0.80 cfs
N (Y or N)
No forebay is needed.
A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Butter-Rev,5 Parts I. and II. Design Summary, page 1 of 2

ti
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
Y
Peak velocity in the channel during the 10-yr storm
Channel lining material
M
25.00 ft
#VALUE!
N (Y or N)
(Y or N)
Do not complete this section of the worksheet
(Y Or N)
Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet.
ft
Do not complete this section of the worksheet
ft
Do not complete this section of the worksheet.
It
Do not complete this section of the worksheet.
cfs
Do not complete this section of the worksheet.
Do not complete this section of the worksheet
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and ll. Design Summary, page 2 of 2

' Permit Number: :51v 141 d 1 a-o i
(to be provided by DWQ)
Drainage Area Number: 4
Dry Extended Detention Basin
Operation and Maintenance Agreement
This manual establishes procedures for maintenance and operation of this facility's dry
detention pond in accordance with Stormwater Management ordinances and
regulations.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, pretreatment including forebays and the vegetated filter if provided.
Important maintenance considerations:
The drainage area will be managed to reduce the sediment load to the dry
extended detention basin.
The embankment should have a ground cover as specified in the erosion control
plan, which, if properly maintained, will minimize erosion and provide an easy
surface for inspection.
Re -Seeding — periodic re -seeding at appropriate times of the year may be required
to continue to provide an appropriate ground cover.
Mowing — grass mowing and removal of unwanted vegetation will be necessary
for the proper maintenance of the embankment. Grass on embankment slopes
should be maintained at an appropriate height.
After the dry extended detention basin is established, it will be inspected annually.
Records of operation and maintenance will be kept and will be available upon request.
Inspection activities will be performed as follows. fAny problems that are found will be
repaired in a timely manner.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
'Trash debris is present.
Remove the trash/debris.
The perimeter of the dry
Areas of bare soil and/or.
Regrade the soil if necessary to
extended detention
erosive gullies have formed.
remove the gully, and then re -
basin
establish a ground cover.
Form 5W401-Dry Detention O&M-Rev.3 Page 1 of 5

{7
BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe.
swale
applicable).
The pipe is cracked or
Repair or replace the pipe.
otherwise damaged (if
a [icable).
Erosion is occurring in the
Repair eroded area.
swale if applicable).
The forebay,
Sediment has accumulated
Remove the sediment and dispose
and reduced the depth to 75%
of it in a location where. it will not
of the original design depth
cause impacts to streams or the
see diagram below).
BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove nuisance vegetation by best
means.
The main treatment area
Sediment has accumulated
Remove the sediment and dispose
and reduced the depth to 75%
of it in a location where it will not
of the original design depth
cause impacts to streams or the
See diagram below).
BMP,
Water is standing more than
Check outlet structure for clogging.
5 days after a storm event.
If it is a design issue, consult an
appropriate rofessional.
Weeds and noxious plants are
Remove nuisance vegetation by best
growing in the main
means, if necessary.
treatment area.
Form SW401-Dry Detention O&M-Rev.3 Page 2 of 5

BMP element:
Potential roblem:
How I will remediate theproblem:
The embankment
Shrubs or trees have started
to grow on the embankment.
Remove shrubs or trees.
Grass cover is unhealthy or
eroding.
Restore the health of the grass
cover.
The outlet device
Clogging has occurred.
Clean out the outlet device.
The outlet device is damaged
Repair or replace the outlet device.
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 basin depth reads 561.4 feet in the main pond, the sediment shall be removed.
When the basin depth reads NJ A feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
ill in the blanks)
Temporary Pool Elevation 562.3
Sediment Removal E NIA Te npora Poolr . emporary ool
-------------- -- [Volume Sediment Removal Elevation 561.4 Volume
Bottom Elevatio N/A 25%-------------------------------------------- Vdiment
Sediment Bottom Elevation 561.00 25%
Storage Storage
FOREBAY MAIN POND
M
Form SW40i-Dry Detention O&M-Rev.3
Page 3 of 5

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
significant problems with the system or prior to any changes to the system or responsible
party.
Project name: Progress Energy Ramseur 115/24 kV Substation
BMP drainage area number: B — for first dry detention basin in the series — "I"
Print name: Richard A. Brown
Title:.-Generai Manager — Transmission Construction & Engineering
Address: _ 100 East Davie St., Raleigh, NC 27601
Phone
Signa
Date:
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.
1, �/, ��,�1 CJp_/g , a Notary Public for the State of
4t.AROX�A County of _LA6 , do hereby certify that
�•/piQ c( , .4. 6w,J personally appeared before me this .2 91
day of /(,fDV-f—M j- eA , b , and acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal,
Y
r
SEAL
My commission expires/q 15��
Form SW401-Dry Detention O&M-Rev.3
Rage 4 of 5

Permit Number: 5W'f/ 0 1 " t
(to be provided by DWQ)
Form SW401-Dry Detention O&M-Rev,3
Page 5 of 5

5MA
DEVL�,-_.. , .
Permit Number: S L-" t-fl ° t O V 1
(to be provided by DWQ)
Polo I Drainage Area Number;
Dry Extended Detention Basin
�,�; ` 4 Operation and Maintenance Agreement
This manual establishes procedures for maintenance and operation of this facility's dry
detention pond in accordance with Stormwater Management ordinances and
regulations.
The dry extended detention basin system is defined as the dry detention basin, outlet
structure, pretreatment including forebays and the vegetated filter if provided.
Important maintenance considerations:
The drainage area will be managed to reduce the sediment Ioad to the dry
extended detention basin.
- The embankment should have a ground cover as specified in the erosion control
plan, which, if properly maintained, will minimize erosion and provide an easy
surface for inspection.
— Re -Seeding — periodic re -seeding at appropriate times of the year may be required
to continue to provide an appropriate ground cover.
Mowing — grass mowing and removal of unwanted vegetation will be necessary
for the proper maintenance of the embankment. Grass on embankment slopes
should be maintained at an appropriate height.
After the dry extended detention basin is established, it will be inspected annually.
Records of operation and maintenance will be kept and will be available upon request.
Inspection activities will be performed as follows. Any problems that are found will be
repaired in a timely manner.
BMP element:
Potentialproblem:
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the dry
Areas of bare soil and/or
Regrade the soil if necessary to
extended detention
erosive gullies have formed.
remove the gully, and then re -
basin
establish a ground cover.
Dorm SW401-Dry Detention O&M-Rev.3 1.Page 1 of 5

BMP element:
Potentialproblem:
How I will remediate theproblem:
The inlet device: pipe or
The pipe is clogged (if
Unclog the pipe.
swale
applicable).
The pipe is cracked or
Repair or replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Repair eroded area.
swale if applicable).
The forebay,
Sediment has accumulated
Remove the sediment and dispose
and reduced the depth to 75%
of it in a location where it will not
of the original design depth
cause impacts to streams or the
see diagram below).
BMP.
Erosion has occurred or
Provide additional erosion
riprap is displaced.
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present.
Remove nuisance vegetation by best
means.
The main treatment area
Sediment has accumulated
Remove the sediment and dispose
and reduced the depth to 75%
of it in a location where it will not
of the original design depth
cause impacts to streams or the
see diagram below).
BMP.
Water is standing more than
Check outlet structure for clogging.
5 days after a storm event.
If it is a design issue, consult an
appropriate rofessional.
Weeds and noxious plants are
Remove nuisance vegetation by best
growing in the main
means, if necessary.
treatment area.
Form SW401-Dry Detention O&M-Rev.3 Page 2 of 5

3
BMP element:
Potentialproblem:
How I will remediate theproblem:
The embankment
Shrubs or trees have started
to grow on the embankment.
Remove shrubs or trees.
Grass cover is unhealthy or
eroding.
Restore the health of the grass
cover.
The outlet device
Clogging has occurred.
Clean out the outlet device.
The outlet device is damaged
Repair or replace the outlet device.
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 basin depth reads 561.4 feet in the main pond, the sediment shall be removed.
When the basin depth reads N/A feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
Temporary Pool Elevation 562.3
Sediment Removal El NIA Te pora Pool emporary ool
- - - - - - - - olume Sediment Removat Elevation 561 A VoluV
Bottom Elevatio NIA 25%-------------------------------------------- --__
Sediment Bottom Elevation 561.00 25%iment
Storage Storage
FORFBAY MAIN POND
Form SW401-Dry Detention O&M-Rev.3 Page 3 of 5

r
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
significant problems with the system or, prior to any changes to the system or responsible
party.
Project name: Progress_ Energy Ramseur_115/24 kV Substation
BMP drainage area number: B - for second_ dry detention basin in the series -- "2"
Print name: Richard A.
Title: General Manager — Transmission Construction & Engineering
Address: 100 Cast Davie St., Raleigh, NC 27601
Phone:
S i gnatu
Date: l t � 2--1 / Zo to
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.
I, Ael) a Notary Public for the State of
AkA County of 6J,411� do hereby certify that
•,Q,Qr�, �i '',(3�¢6 personally appeared before me this.2 Q
day of/4 yemi-cp, , 2016 , and acknowledge the due execution of the
forgoing dry detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission expires. �,0 Y / Z :7 dr/�
Form SW401-Dry Detention O&M-Rev.3
Page 4 of 5

Permit Number: Sw`f l e4nJ
(to be provided by DWQ)
Form SW401-Dry Detention O&M-Rev-3 Page 5 of 5

am
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
This manual establishes procedures for maintenance and operation of this facility's filter
strip and level spreader in accordance with Stormwater Management ordinances and
regulations.
Important maintenance procedures:
• Maintain vegetation at a reasonable height, depending on type of vegetation.
• Reseed, if needed, on an annual basis.
After the filter strip is established, it will be inspected annually. Records of operation
and maintenance will be kept in a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired in a timely manner.
BMP element:
Potential problem:
How I will remediate the problem:
The entire filter strip
Trash/debris is present.
Remove the trash/debris.
system
The flow splitter device
The flow splitter is clogged.
Unclog the conveyance and dispose
(if applicable)
of any sediment properly.
The flow splitter device is
Make any necessary repairs or
damaged.
replace if damage is too large for
repair.
The swale and the level
The swale is clogged with
Remove the sediment and dispose
lip
sediment.
of property,
The level lip is cracked,
Repair or replace lip,
settled, undercut, eroded or
otherwise damaged.
There is erosion around the
Repair erosion and revegetate.
end of the level spreader that
shows stormwater has
bypassed it.
'frees or shrubs have begun
Remove unwanted vegetation.
to grow on the swale or just
downslo e of the level lip.
The bypass channel
Areas of bare soil and/or
Repair erosion and revegetate.
erosive gullies have formed.

The filter strip
Areas of bare soil and/or
Repair erosion and revegetate.
erosive gullies have formed.
Sediment is building up on
Remove the sediment and
the filter strip.
restabilize the soil with vegetation if
necessary.
Plants are dead, diseased or
Remedy the problem and
dying.
re-establish vegetation,
Nuisance vegetation is
Remove nuisance vegetation by best
choking out desirable species.
means. Herbicides, approved for
aquatic use and applied by or under
the direct supervision of a certified
applicator, may be used.

,.s st✓1� f o ! 9D f
Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Ramseur 115/24 kV Substation Expansion
BMP drainage area number:—]
Print name: Richard A. Brown
Title: General Manager -- Transmission Construction & Engineering
Address: 100 E. Davie St., Raleigh, NC 27601 (TPP 18)
Phone:
Signati
Date: 10 Z2 0 Z Z o
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
ounty of /D'— , do hereby certify that
r Qom. personally appeared before me this 2-dr�:-A
day of � � , Z.D/G , and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
G
ZZ
SEAL
My commission expires, ���_