NC0004979_Permit Modification_20030725

M
State of North Carolina
Department of Environment
and'Natural Resources
-Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, PE, Director
July 25, 2003
Mr. Michael A. Ruhe
Duke Power
Post Office Box 1006
Charlotte, North Carolina 28201-1006
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit NC0004979
Allen Steam Station
Gaston County
Dear Mr. Rube:
On May 1, 2003, the Division of Water Quality (Division) received your request to modify permit NC0004979.
This modification merely clarifies the previous interpretation of your permit temperature limit as a monthly average.
Please find enclosed the revised permit pages. The revised pages should be inserted into your permit. The
old pages may then be discarded. All other terms. and conditions contained in the original permit remain unchanged
and in full effect. This permit modification is issued under the requirements of North Carolina General Statutes 143-
215.1 and the Memorandum of Agreement between North Carolina and the U. S. Environmental Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to
you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of
this letter. 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 (6714 Mail Service Center, Raleigh,
North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Natalie Sierra at telephone number (919)
733-5083, extension 551.
Sincerely,
Original Signed By
David X Goodrioh
Alan W. Klimek, PE
cc: Central Files
Mooresville Regional Office/Water Quality Section
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT Us ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Duke Energy Corporation
is hereby authorized to discharge wastewater from a facility located at the
Plant Allen Steam Station
253 Plant Allen Road (NCSR 2525)
Belmont
Gaston County
to receiving waters designated as the Catawba and South Fork Catawba Rivers in
the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective September 1, 2003.
This permit and authorization to discharge shall expire at midnight on May 31, 2005.
Signed this day July 25, 2003.
Original Signed By
®arid A. Goodrich
Alan W. Klimek, Director
Division of Water Quality
By Authority of the Environmental Management Commission

e +
Permit NC0004979
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective de of this permit and lasting until expiration, the Permittee is
authorized to discharge condenser cooling wat r (CCW from outfall 001. Such discharges shall be limited and
monitored by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQI�IREMENTS
CHARACTERISTICS`
Monthly '"'D"aily Measurement Sample Type Sample Location
t
_... ... Average Max mum ....., Fiequenc �..
Flow Daily Pump Logs Effluent
Temperature 38.90C Daily Grab or Instantaneous Effluent
June 1- September 30)1 (1020F
Temperature 35°C Daily Grab or Instantaneous Effluent
October 1- May 31)1 (95�F)
Notes:
1. The Regional Administrator has deteined pursuant to Section 316(a) of the Act that the
thermal component of the discharge a sures the protection and propagation of a balanced,
indigenous population of shellfish, fish;, and wildlife in and on the receiving body of water.
Chlorination of the once through condenser cooling water, discharged through outfall 001,
is not allowed under this permit. Should Duke Power wish to chlorinate its condenser
cooling water, a permit modification must be requested and received prior to commencing
chlorination.
2
W ,

06/04/2003
14:34 7048043031
GAZETTE CLASSIFIED
Page
1 of 2
EwronmenulManagement
Printed
06/D4/2CO3 09;10
Ad Number
54145035
Order Number
54145634
Publication
Gazette/Extra
PO Number
Category
Le9als 000
Customer
30292309 - NCDENR/DWQ/NPDES
First Pub
06/08/2003
contact
Gastonia, NC
Lest Pub
06/08/2003
Addressi
Ann: Christie Jackson
Days
1
Addres82
1617 Mail Service Center
Size
1 x 7.80, 75 Ilnes
city
Raleigh. NC 27099.1917
Ad Rate
l2
Phone
[phone]
Ad Pride
122.00
Fax
[phone]
Order Price
122.00
publlah dX. o' IN- Mtge. A'
AmountPold
0.00
Keywords
Amount Due 122.00
PUBLIC NOTICE State of North Carolina Environmental Management Commission/NPO
Printed By
RPhilberk
Prapasea Pa1111. Tne Otreots
Measuring 7.80 Inches appeared in The Gaston Gazette, a newspaper published in
Entered By
RPhilbeck
p.bac —(a lar 0'. 0—...
PONI�03
PUBLIC NOTICE
Stale of NOftl Carolln8
Environmental Management
Com mlefbNNPDES Unit
1617 Men Sorvb9 Cmto
n.walgh NO 2769a-1617
No'HIM101 of Imam b Issue A
N PDES W. —uer Pon
on the bgala or me ugn staff
review and applkellans of NO
General StaMa 143.21. Publk
law 92.500 and eUar fo fJ
candarde end rogulau. ,the
north 0emnnq Erwiro m.mN
alanagemam Commission pro.
Poses to lasua a Nalloml Pollu.
Ianl Olatllrrya ENminatl.n cye.
I'm (NPGES) Waa:9welef dib•
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Iron II1e MOM eats of this no.
Ik.
Writ- wmm.= regardng
the Pmpowd 00-N will be se-
oapled Until 30 days attar One
Publlah dal. or IN. nolle.. An
commonls received prior to that
d.i..rn 6mo9Ia9led In Ill, nnal
dmennlnasons regardlrp Ina
PmPosed PO"A The Olroaor
el 1h. NC tIN;., n M WoI.,
Ounlity may daclde Ib hold e
Public meeting> f me PrWa9d
permit should the DlAsim re-
ceive a signlNdant degmo of
publelr '—.
CW.a of Ina omit Penn end
mar sumomng Information on
,le usoo to determine tondl.
'_ W.'" 1n I,a drsh Porton
.re avall8010 upon rep1As1 and
P.yrn"I of ma 0046 at
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dwt,on, Mall wmmams and/or
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NG DPAe,.n d Weler Ou.11lyel
the obove addfesa or 0911 Ms.
vmwy stepaem at (919)
733.5083, estens"m Sid.
Please imWde the NPGES 9,
ma numb' NCooso765. In any
temmumcattms. Imers sled
pawn may also Nell the olvb
Bion of Water Ouellry at 512 N.
Salisbury Street, Raleigh, NO
Vem-11�0 be6veen Me —
Df e'00 a.m. and 5.00 1. review
inbnnation on file.
('NPGES Pemlll Number NC
1–eaaa.7d�.ouh. Enmgy;eorpo`
meson Plant Allan Stepm SU
(' -dm has apPll9d b' modlfi gllon
—loathes wordina of the tempera• ,f
1uR limit on oulfall ooi 10 Ia
PBmhn dbtll.Iying 1. dm Ca•
tawba Phar In the Calawpa'
+.Povor .ldasln --tet
1CJIma B. 2003
PAGE 01/02
07/23/2003 00:52 7048843031 GASTCN GAZETTE
PAGE 02
1
JJ' Legal Advertising Manager
fr 1
Swam to and subscribed before me this day of 2003
Notary Public
My CommissionEx cs March 5,?a008
PUBLIC NOTICE
Stale of Nolte Carol-
EwronmenulManagement
CommissiorvNPCES Urit
1617 Mad serum Center
AFFIDAVIT OF INSERTION OF ADVERTISEN
nglorgm. NO r6W K4L�
The Gaston Gazette
Nottleanonor Intent m Issue A
NPGES Waalewaler Pamlil
0. Ih. base on Ihomwh rW
review and appications of NO
General Statute 143.21. P1011 -
w. 9;_510 and other Iawlul
'9fanowd, and IegUbtbrs, Ina
Gastonia, NC
Nan, C—lin. arwlnnmar,Ial
Gaston County
Managamell Commission Pro•
PatW
poses to issue a Nascml
Iant Dlarharde Elimination SV --
1, (NPGES) ...tawatar ds -
,Mg. Pclma N Its P.—nla)
I, Carla Potter Legal Advertising Manager of the Tlie Gaston Gazette; do certif}
bebN
1 t no -
this no -
the advertisement of PUBLIC NOTICE
the
so date s
from he pudasP date 01
from
NOTIFICATION OF INTENT TO ISSUE A NPDES
WASTEWATER PER MIT
Wnttcn al mean mp'ani
the proposed emlh wdl be ac
,,.d lir it 30 days allaf mI
publlah dX. o' IN- Mtge. A'
comments feoeived PdOF to b7
CBI. an, C.nald9rad in the trz
del9rmlMams ragan:kM 01
Prapasea Pa1111. Tne Otreots
Measuring 7.80 Inches appeared in The Gaston Gazette, a newspaper published in
ouOtNv hmaypdacioe veon nto Hot Wrdats
Gaston County, Gastonia, NC, in issues
p.bac —(a lar 0'. 0—...
PONI�03
1
JJ' Legal Advertising Manager
fr 1
Swam to and subscribed before me this day of 2003
Notary Public
My CommissionEx cs March 5,?a008

n Y-5
North Carolina ? ss
Mecklenburg County)
The Knight Publishing Co., Inc.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
- ------------------------------------------------- 1---------------------------
NCDENR/DWQ/BUDGET OFFICE
ACCOUNTS PAYABLE
1617 MAIL SERVICE CENTER
RALEIGH NC 27699-1617
REFERENCE: 30019881
4875994 Public Notice
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of the Knight Publishing Company a
corporation organized and doing business under the
Laws of the State of Delaware, and publishing a
newspaper known as The .Charlotte Observer in the
city of Charlotte, County of Mecklenburg and State
of North Carolina and that as such he/she is
familiar with the books, records, files and
business of said Corporation and by reference to
the files of said publication
the attached advertisement was inserted. The
following is correctly copied from the books and
files of the aforesaid Corporation and
Publication.
PUBLISHED ON: 07/17
AD SPACE: 77 LINE
FILED ON: ---------03„ -
NAME: �i(l..i� TITLE. � <<�-
DATE: -1IdlJo3
In Testimony Whereof I have hereunto set my hand and affixed my seal, the
day and year aforesaid,
Notah}4/ %'/v' Ee ��"Z-"'—M-y—'C;ommission Expires:

*Duke'
Power®
A Duke Energy Company
April 29, 2003
Ms. Natalie Sierra
NC Dept of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: NPDES Permit Thermal Modification
Allen Steam Station - NC0004979
Gaston County
Dear Ms. Sierra:
[Rinov n1V6L -/VVS
FOSSIL AND HYDRO GENERATjIO
Duke Power dt�
P.O. Box 1006 [[[
Charlotte, NC 28201-1006
f MAY 1 2003 1
WeJER, QUALITY
Duke Power requests a modification to the effluent thermal limit for Outfall 001. During the last
permit renewal, the asterisk which identified the effluent temperature limit as a monthly average was
inadvertently omitted. The asterisk refers to a footnote that states the "*Temperature shall not exceed
35°C (95°F) during the period October 1 -May 31 and 38.9°C (102°F) during the period June 1 -
September 30." Duke Power request, the table on limitation page A.(1.) be changed to the following:
EFFLUENT : '
LIMITS
MONITORING,REQUfREMENTS
. '.
.
CHARACTERISTt�S-
Mir
Month[
Daily
Measurement
Type
Sample Location °`
-
Average
y
Maximum
Frequency
hSampte
. A
Flow
Daily
Pump Los
Effluent
Temperature
Grab or
June 1 - September 30
38.9°C 102°F
Daily
Instantaneous
Effluent
Temperature
Grab or
October 1 - May 31
35°C 95°F
Dail
Instantaneous
Effluent
By using the above table, the asterisk statement in footnote number one can be eliminated. If you
need additional information or have questions concerning this modification, please contact John
Mease at [phone].
Sincerely,
Michael A. Ruhe, Manager
Environmental Support
cc: Richard Bridgeman — Mooresville Regional Office
www.duke-energy.com