NC0024406_Engineer's Certification_20081211

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Duke Energy Carolinas, Inc.
Belews Creek Steam Station
A To C No. 024406A05
Issued November 7, 2008
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I, _OAYA)q Gj. ST U)gC-41 6-S , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications to the Flue Gas Desulfurization (FGD) Wastewater
Treatment Plant, located on 3195 Pine Hall Road (NCSR 1908) in Stokes County, hereby state
that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
The addition of a cross -connection between the 14 -inch FGD effluent pipe (leading to the
Constructed Wetlands) with the 12 -inch Consolidated Sump pipe (leading to the Ash
Settling Basin) to include 12 -inch and 14 -.inch piping and valving, which will allow the
FGD treated effluent to be pumped directly to the Ash Settling Basin and the
Consolidated Sump to be pumped to the Constructed Wetland prior to discharge to the
Ash Settling Basin, in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Environment and
Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.�u 6 -
Date 12-x/ zo 8'
Send to: Construction Grants & Loans
Q+.••''"''••..� �i
a� Q • EESS/ .� �
DENR/DWQ
1633 Mail Service -Center
= s SEAL
Raleigh, NC 27699-1633
=�; 022026 syr
9��'•:.�GINEEQ••' 1447

W ATF9QG.
November 7, 2008
Mr. Robert Wylie
Duke Energy Carolinas, LLC
526 South Church Street
Charlotte, North Carolina 28202
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
SUBJECT: Authorization to Construct
A to C No. 024406A05
Duke Energy Carolinas, Inc.
Belews Creek Steam Station
Flue Gas Desulfurization (FGD) WWTP
Stokes County
Dear Mr. Wylie:
A letter of request for an Authorization to Construct was received October 7, 2008, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the construction of modifications to the
existing 0.864 MGD Flue Gas Desulfurization (FGD) Wastewater Treatment Plant, with
discharge of treated wastewater (Internal Outfall 002) into the Ash Settling Basin, which
discharges into the Dan River (Outfall 003) in the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
The addition of a cross -connection between the 14 -inch FGD effluent pipe (leading to the
Constructed Wetlands) with the 12 -inch Consolidated Sump pipe (leading to the Ash
Settling Basin) to include 12 -inch and 14 -inch piping and valving, which will allow the
FGD treated effluent to be pumped directly to the Ash Settling Basin and the
Consolidated Sump to be pumped to the Constructed Wetland prior to discharge to the
Ash Settling Basin, in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Environment and
Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO024406 issued November 8, 2007, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0024406.
NorthCarolina
Awima!!y
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterguality.org 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Mr. Robert Wylie
November 7, 2008
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
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 wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission..
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.

' Mr. Robert Wylie
November 7; 2008
Page 3
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by -the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct 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) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely, a
/V9
rColeen H. Sullins
kp: sr
cc: Bryan Sturgies, P.E. — The Shaw Group, 128 South. Tryon Street, Suite 600,
Charlotte, NC 28282
Stokes County Health Department
DWQ Winston-Salem Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Daniel Blaisdell, P.E.
Seth Robertson, P.E.
Ken Pohlig, P.E.
ATC File No. 024406A05

' Belews Creek Steam
,
A To C No. 024406/
D f 99 0 W N
JUN 14 2007
tion DENR - WATER QUALITY
POINT SOURCE BRANCH
Issued September 1; 2006
Engineer's Certification
WCEIVED
��N 4 2007
I, SPHIL'( 6 c ------,as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the construction of the modifications and improvements to the Sanitary Lagoon Wastewater
Treatment System, associated with the Belews Creek Steam Station, located on 3195 Pine Hall
Road (NCSR 1908) in Stokes County, hereby state that, to the best of my abilities, due care and
diligence was used in the observation of the following construction:
Installation of 2,091 linear feet of 3 -inch sanitary sewer forcemain (carrying sanitary
sewer from the CMD Trailer Lift Station to the Lagoon WWTP); 2,089 linear feet of 4 -
inch sanitary sewer forcemain (carrying sanitary sewer from the Powerhouse Lift Station
to the Lagoon WWTP); a 12,500 GPD domestic Sanitary Lagoon Wastewater Treatment
System, consisting of a 539,000 gallon aerated lagoon lined with 40 -mil Hypalon
synthetic liner and a divider curtain; dual 50 scfm blowers and tower aerators; a 13,600
gallon chlorine contact chamber, dual 150 gpm, 15 Hp pumps (Wastewater Forwarding
Pumps); 1,119 linear feet of 3 -inch sanitary sewer forcemain (carrying treated effluent
from the Lagoon WWTP to the Consolidated Sump Pump Station), associated yard
piping, access roads and site work, in conformity with the project plans, specifications,
and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
19 r
Date X31 ZQa7
Send to: Construction Grants & Loans
Attn: Cecil G. Madden, Jr., P.E.
DENR/DWQ N�p�l/tt/tete
1633 Mail Service Center �•`oQ,'(µ C.=s a,
Raleigh, NC 27699-1633
�%31(?De7
112
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1 , CO Y r
.�
September 1, 2006
Mr. Robert Wylie
Duke Power
526 South Church Street
Charlotte, NC 28202
Michael F. Easley, Governor
William G. Ross Jr.. Secretary
North Carolina Department of Environment and Natural Resources
SUBJECT: Authorization to Construct
A to C No. 024406A04
Belews Creek Steam Station
Alan W. Klimek, P.E. Director
Division of Water Quality
Sanitary Lagoon Wastewater Treatment System
Stokes County
Dear Mr. Wylie:
A letter of request for Authorization to Construct was received March 28, 2006, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the construction of a replacement domestic
12,500 GPD Wastewater Treatment Plant, with discharge into the Ash Settling Basin (NPDES
Permit NCO024406 Outfall 003), which discharges into the Dan River in the Roanoke River Basin.
This authorization results in a design capacity of 12,500 gpd, and is awarded for the
construction of the following specific modifications:
Installation of 2,091 linear feet of 3 -inch sanitary sewer forcemain (carrying sanitary
sewer from the CMD Trailer Lift Station to the Lagoon WWTP); 2,089 linear feet of 4 -
inch sanitary sewer forcemain (carrying sanitary sewer from the Powerhouse Lift Station
to the Lagoon WWTP); a 12,500 GPD domestic Sanitary Lagoon Wastewater Treatment
System, consisting of a 539,000 gallon aerated lagoon lined with'40-mil Hypalon
synthetic liner and a divider curtain; dual 50 scfm blowers and tower aerators; a 13,600
gallon chlorine contact chamber; dual 150 gpm, 15 Hp pumps (Wastewater Forwarding
Pumps); 1,118 linear feet of 3 -inch sanitary sewer forcemain (carrying treated effluent
from the Lagoon WWTP to the Consolidated Sump Pump Station), associated yard
piping, access roads and site work, in conformity with the project plans, specifications,
and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO024406 issued May 16, 2005, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0024406.
NNo c IiCarolina
aturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: ''�gy-,,'�-M',aterrnliai;'N.OrO 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer -50% Recycled/10% Post Consumer Paper

Mr. Robert Wylie
September 1, 2006
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
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 wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be
notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an
on site inspection can be made. Such notification to the regional supervisor shall be made during
the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding
State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a'
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ / DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and, when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.

Mr. Robert Wylie
September 1, 2006
Page 3
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct 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) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Cecil G. Madden, Jr., P.E. at
telephone number [phone].
Sincerely
Klimek, P.E.
kp:cgm
cc: Philip Bolton, P.E., Shaw, Stone & Webster, Inc., Charlotte, NC
Stokes County Health Department
DWQ Winston-Salem Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Point Source Branch, NPDES Program
Cecil G. Madden, Jr., P.E.
Michelle McKay
Ken Pohlig, P.E.
A to C File

Belews Creek Steam Station
A To C No. 024406A03
Engineer's Certification
Phase 11 -Construction of the Flue Gas Desulfurization (FGD) Wastewater Treatment Plant
I, R.%!4Ko&4 D C e Lo e-, A t,A , as a duly registered Professional Engineer in
.the State of North Carolina, having been authorized to observe periodically the Phase II
construction of the Flue Gas Desulfurization (FGD) Wastewater Treatment Plant, located on
3195 Pine Hall Road (NCSR 1908) in Stokes County, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction_
Installation of a 0.864 MGD Flue Gas Desulfurization (FGD) Wastewater Treatment
Plant, consisting of: a 177,120 gallon maintenance tank; a 177,120 gallon equalization
tank; dual 907 gpm forwarding pumps; three reaction tanks (44,280 gallon, 9,690 gallon,
and 9,690 gallon) for the addition of lime (to raise the pH to 9.2), sulfide, ferric chloride,
and polymer, including a lime slurry feed system consisting of dual 8,000 ft3 lime silos,
dual 700 gallon lime slurry tanks, and four 70 gpm lime slurry feed pumps, a sulfide feed
system consisting of dual 400 gallon totes and dual 8 gph feed pumps, a ferric chloride
feed system consisting of a 7,190 gallon tank and dual 8 gph feed pumps, ,and a polymer
feed system consisting of dual 400 gallon totes and dual 0.4 gph feed pumps; flow splitter
box; two 50 -foot diameter; 30.5 -foot side -water depth clarifiers; a static mixer for the
addition of hydrochloric acid (to lower the pH to 8.0) .and a hydrochloric acid feed
system consisting of a 7,190 gallon storage tank and dual 8 gph feed pumps; three.
continuous backwashing, 10.5 -foot diameter gravity sand filters; a 11,210 gallon storage
tank (Selenium reduction feed tank); dual 768 gpm Bio -Reactor feed pumps; dual heat
exchangers (to reduce the water temperature from 118° F to 95° F); a static mixer for the
addition of a Molasses based nutrient and a Molasses based nutrient feed system
consisting of a 7,190 storage tank and three 26 gph feed pumps; First Stage Selenium
Reduction Bio -Reactor (converting Se(IV) and Se(VI) to elemental Selenium Se(0))
consisting eight (8) parallel 20'x 18'x 26'cells filled with 14.3 feet (depth) of activated
carbon; dual 91,890 gallon First Stage effluent transfer compartments (tanks) with three
(3) 750 gpm transfer/recycle pumps and dud 3,600 gpm backwash pumps; a second static
mixer for the addition of a Molasses based nutrient; Second Stage Selenium Reduction
Bio -Reactor (converting Se(IV) and Se(VI) to elemental Selenium Se(0)) consisting eight
(8) parallel 20'x 18'x 26'cells filled with 14.3 feet (depth) of activated carbon; a 14,800
gallon Second Stage recycle tank with dual 761 gpm recycle/recirculation pumps; dual
19,860 gallon Wetland supply tanks and dual 1,980 gpm Wetland supply pumps; dual
99,770 gallon backwash holding compartments (tanks) with dual 70 gpm backwash waste
return pumps; a sludge treatment system consisting of six (clarifier) 162 gpm sludge
transfer pumps and a 177,120 gallon sludge holding tank, four 550 gpm filter press fast
fill pumps, six 60 gpm filter press pressurization pumps, four 1,500 mm, 250 ft3 filter
presses and four sludge truck loading stations, and a 31,600 gallon filtrate sump pump
station with dual 600 gpm filtrate sump pumps; associated yard piping, and site work, in
conformity with the project plan, specifications, and other supporting data subsequently
filed and approved by the Department of Environment and Natural Resources.
9
Y
r. .

Belews Creek Steam Station
A To C No. 024406A03
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature ` Registration No. (� Z!� 33 S
Date
Send to: Construction Grants & Loans
DENR/DWQ
Attn: Cecil G. Madden, Jr., P.E.
1633 Mail Service Center
Raleigh, NC 27699-1633

Mr. Robert Wylie
Environmental Support
Duke Power
EC13K/P.O. Box 1006
Charlotte, North Carolina 28201-1006
SUBJECT:
Dear Mr. Wylie:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
May 2, 2006
Authorization to Construct No. 024406A03
Belews Creek Steam Station
Flue Gas Desulfurization Wastewater Treatment System
Phase II Construction
Stokes County
A letter of request for Authorization to Construct was received February 1, 2006, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the Phase II construction of the Flue Gas
Desulfurization (FGD) Wastewater Treatment System. Authorization to Construct No.
024406A02, issued December 27, 2005, was for the Constructed Wetlands which acts as a final
polishing filter for the FGD Wastewater Treatment Plant. Authorization to Construct No.
024406A01, issued January 13, 2006, was for the Phase I Foundation and Concrete construction of
the FGD Wastewater Treatment Plant. Upon completion of the Constructed Wetlands and Phase I
and the Phase II constructions of the FGD Wastewater Treatment System, the treated effluent from
the FGD Wastewater Treatment System will discharge into the Ash Settling Basin (NPDES Permit
NCO024406 Internal Outfall 002), which discharges into the Dan River in the Roanoke River
Basin.
This authorization results in a design and permitted capacity of 0.864 MGD, and is
awarded for the construction of the following specific modifications:
Installation of a 0.864 MGD Flue Gas Desulfurization (FGD) Wastewater Treatment
Plant, consisting of. a 177,120 gallon maintenance tank; a 177,120 gallon equalization
tank; dual 907 gpm forwarding pumps; three reaction tanks (44,280 gallon, 9,690 gallon,
and 9,690 gallon) for the addition of lime (to raise the pH to 9.2), sulfide, ferric chloride,
and polymer, including a lime slurry feed system consisting of dual 8,000 ft3 lime silos,
dual 700 gallon lime slurry tanks, and four 70 gpm lime slurry feed pumps, a sulfide feed
system consisting of dual 400 gallon tanks and dual 8 gph feed pumps, a ferric chloride
feed system consisting of a 7,190 gallon tank and dual 8 gph feed pumps, and a polymer
feed system consisting of dual 400 gallon tanks and dual 0.4 gph feed pumps; flow
splitter box; two 50 -foot diameter, 27 -foot side -water depth clarifiers; a static mixer for
oe Carolina
NNaturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

Mr. Robert Wylie
May 2, 2006
Page 2
the addition of hydrochloric acid (to lower the pH to 8.0) and a hydrochloric acid feed
system consisting of a 7,190 gallon storage tank and dual 8 gph feed pumps; three
continuous backwashing, 10.5 -foot diameter gravity sand filters; a 11,210 gallon storage
tank (Selenium reduction feed tank); dual 768 gpm Bio -Reactor feed pumps; dual heat
exchangers (to reduce the water temperature from 118° F to 95° F); a static mixer for the
addition of a Molasses based nutrient and a Molasses based nutrient feed system
consisting of a 7,190 storage tank and three 26 gph feed pumps; First Stage Selenium
Reduction Bio -Reactor (converting Se(IV) and Se(VI) to elemental Selenium Se(0))
consisting of eight (8) parallel 20'x 18'x 26'cells filled with 14.3 feet (depth) of activated
carbon; dual 91,890 gallon First Stage effluent transfer compartments (tanks) with three
(3) 765 gpm transfer/recycle pumps and dual 3,600 gpm backwash pumps; a second static
mixer for the addition of a Molasses based nutrient; Second Stage Selenium Reduction
Bio -Reactor (converting Se(IV) and Se(VI) to elemental Selenium Se(0)) consisting eight
(8) parallel 20'x 18'x 26'cells filled with 14.3 feet (depth) of activated carbon; a 14,800
gallon Second Stage recycle tank with dual 761 gpm recycle/recirculation pumps; dual
19,860 gallon Wetland supply tanks and dual 1,980 gpm Wetland supply pumps;
approximately 4,650 linear feet of 14 -inch forcemain to the Constructed Wetlands
Equalization Basin; dual 99,770 gallon backwash holding compartments (tanks) with
dual 70 gpm backwash waste return pumps; a sludge treatment system consisting of six
(clarifier) 150 gpm sludge transfer pumps and a 177,120 gallon sludge holding tank, four
550 gpm filter press fast fill pumps, six 70 gpm filter press pressurization pumps, four
1,500 mm, 250 ft3 filter presses and four sludge truck loading stations, and a 31,600
gallon filtrate sump pump station with dual 600 gpm filtrate sump pumps; associated yard
piping, access roads and site work, in conformity with the project plan, specifications,
and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0024406 issued May 16, 2005, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations
specified in Permit No. NC0024406.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
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 wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.

Mr. Robert Wylie
May 2, 2006
Page 3
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility has
been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ / DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least
equivalent to or greater than the classification assigned to the wastewater treatment facilities by the
Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T I 5A: 8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance with
the North Carolina Sedimentation Pollution Control Act, and, when applicable, the North Carolina
Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct 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) which have jurisdiction.

Mr. Robert Wylie
May 2, 2006
Page 4
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Cecil G. Madden, Jr., P.E. at
telephone number [phone].
;Sincerely,
an W. Klimek, P.E.
kp: cgm
cc: Raymond Luciana, P.E., US Filter (Warrendale, PA)
Stokes County Health Department
DWQ, Winston-Salem Regional Office, Surface Water Protection
DWQ, Point Source Branch, NPDES Program
DWQ, Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Cecil G. Madden, Jr., P.E.
Ken Pohlig, P.E.
A to C File

IVC 0 0 �2
ENTRIX Inc.
Emil• 50 Glenlake Parkway, Suite 600.
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Engineer's. Certification NOV ?Q�f 2003
- Project Number 024406A02 f'
- issued December 27, 2005
I, F. DOUGLAS MOONEY , as a duly registered
Professional Engineer in the State of North Carolina, having been authorized to observe
periodically the construction of the Belews Creek Steam Station FGD Constructed Wetlands,
located at 3195 Pine Hall Road (NCSR 1098) in, Stokes County, North Carolina hereby state that,
to the best of my abilities, due care and diligence was used in the observation of the following
construction:
Installation of Constructed Wetlands to act as a final polishing filter for Flue Gas
Desulfurization (FGD) Wastewater Treatment Plant, to include parallel equalization
basins, each sized at 1.8 MG, a flow splitter box, and parallel trains of constructed
wetlands, Nvith each train consisting of three cells in series: Cells #1 and #2 sized at
1.22 MG and planted with bulrushes followed by a rock cascade aeration unit, and Cell
#3 sized at 1.22 MG and planted with cattails followed by a rock cascade aeration unit,
a final monitoring station and Parshall Flume (for NPDES Permit NCO024406 Internal
Outfall 002), and discharge into the Ash Settling Basin, in conformity with the project
plan, specifications, and other supporting data subsequently filed with and approved by
the Department of Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
Date October 26, 2007
Mail this Certification to:
NPDES Unit
DENR/DWQ
1617 Mail Service Center
Raleigh, NC 27699-1633
19579
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Mr. Robert Wylie
Environmental Support
Duke Power
EC13K/P.O. Box 1006
Charlotte, North Carolina 28201-1006
SUBJECT:
Dear Mr. Wylie:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
January 13, 2006
Authorization to Construct No. 024406AOI
Belews Creek Steam Station
Flue Gas Desulfurization Wastewater Treatment Plant
Phase I Foundation and Concrete Design
Stokes County
A letter of request for Authorization to Construct was received July 22, 2005, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the Phase I Foundation and Concrete
construction of the Flue Gas Desulfurization (FGD) Wastewater Treatment Plant. With the
completion of the Phase I and the future Phase II constructions, the treated effluent from the FGD
Wastewater Treatment System will discharge into the Ash Settling Basin, which discharges into
the Dan River in the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Installation of the concrete foundation and concrete walls for the following selected
structures of the Flue Gas Desulfurization (FGD) Wastewater Treatment Plant: two 50 -
foot diameter clarifiers, the Bio -reactor Building containing sixteen (16) 20'x 18'x
26'cells with attached Bio -reactor System Pump Building, the filtrate sump pump station,
associated yard piping, access roads and site work, in conformity with the project plan,
specifications, and other supporting data subsequently filed and approved by the
Department of Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO024406 issued May 16, 2005, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations
specified in Permit No. NC0024406.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality.
o e hCarolina
NNaturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Mr. Robert Wylie
January 13, 2006
Page 2
In the event that the facilities fail to perform satisfactorily, uicluding 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 wastewater
treatment or disposal facilities.
The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility has
been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to Cecil G. Madden, Jr., P.E.,
Construction Grants & Loans, DWQ / DENR, 1633 Mail Service Center, Raleigh, NC 27699-
1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least
equivalent to or greater than the classification assigned to the wastewater treatment facilities by the
Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance with
the North Carolina Sedimentation Pollution Control Act, and, when applicable, the North Carolina
Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.

Mr. Robert Wylie
January 13, 2006
Page 3
- Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct 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) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Cecil G. Madden, Jr., P.E. at
telephone number [phone].
Sincerely,
Klimek, RE
kp:cgm
cc: Phillip Bolt, P.E., Penta Engineering (Charlotte, NC)
Stokes County Health Department
DWQ, Winston-Salem Regional Office, Surface Water Protection
DWQ, Point Source Branch, NPDES Program
DWQ, Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Mark Hubbard, P.E.
Cecil G. Madden, Jr., P.E.
Ken Pohlig, P.E.
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