NC0024392_Regional Office Historical File Pre 2018

PAT M(/y
ol;w_
Governor
DONALD R+ VAN DER VAART
.tic avlary
Water Resources S. JAY ZIMMERMAN
ENVIRONMENTAL QUALITY
Dircdor
December 9, 2016
Mr. John Williamson
Dead Ef1S Professional, McGuire
Duke Energy Carolinas, LLC
12700 Lagers Ferry Road
Huntersville, North Carolina 28078
Subject: Toxicity Test Results
McGuire Nuclear Station
NPDES Permit No. NCO024392
Mecklenburg County
Dear Mr. Williamson.
Enclosed are copies of the toxicity test results relative to the samples collected at the subject
facility on November 3; 2016 (Outfalls 001 and 002) and November 15 and 17, 2016 (Outfall 005), b
. Wes Bell of this Office. Whole effluent samples were collected for use in a 24-hr. acute
Ceriodaphnia dubia pass/fail toxicity test (Outfall 001), a 8-hr. acute Ceriodaphnia dubia full range
toxicity test (Outfall 002), and'a chronic Ceriodaphnia dubia pass/fail toxicity test (Outfall 005). All tests
passed utilizing these samples,
The report should be self-explanatory; however, should you have any questions concerning this
report, please do not hesitate to contact Ms. Carol Hollenkamp at (919) 73-8401and/or Mr. Wes Bell at
(704) 235-219 , or at carol.hollenkampancdenngov, and es.bellaamcde .aov '
Sincerely,
A
} �14)
k Y
. W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of hater Resources, NCI EQ
Enclosure:
Toxicity Test Results
cc: Rusty Rozzelle, MCWQP
MSC 16`17-Central Files/Basement
Susan Meadows, Aquatic Toxicity Unit

o. Corey Basinger
Water Quality Regional S ors O
Through.' ; Cindy A. Moore
Supervisor, .Aquatic Toxicology Branch
From: Carol Hollenkamp
Quality Assurance CJ cer, Aquatic Toxicology Branch
Subject: Whole effluent toxicity test results;
Duke Energy McGuire
NPDES Permit ## NC O0243 2/001
Mecklenburg County
The aquatic toxicity test'using a composite sample ple ofeffluent discharged from the Duke Energy McGuire has
been completed. Duke Energy McGuire 001 has a permitted discharge to fake Norman (Q10 TA). A whole
effluent sample was collected on November 3rd by Wes Bell and facility representative John Quinn for use in an
acute 4-hr Cer odaphnia dubia pass/fail toxicity test.. The test resulted in a pass. Tonicity test information follows.
Test Type Acute 24 hour Ceriodaphnia dubio pas fail
Test Concentrations 90%
Test Result Pass
Control Survival 100%
Vest Treatment Survival 100%
Sample,pH 7.36 SU
Sample Conductivity 54,7 micro o,*m
Sample Total Residual Chlorine <0.10
Results for the move sainpleindicatethat the effluent would not be predicted to have water quality impacts on
receiving water. These samples were split with ET , Inc. The teal conducted by ETS Inc. also passed
Please contact us if you have any questions or if ftirther effluent toxicity mis des' We maybe
reached at 919.7434 01.
Basin. t TB3
cc: Central Files
Wes Bell, MRO

Division of Water Resources
December 9, 2016
To. Dore _ _ . w
Ba " er � �.. ,..
Water Quality Regional Supervisor, MRO
Through: Cindy A. Moore
Supervisor, Aquatic Toxicology Branch
From. Carol Holleukarnp
Quality Assurance- G cer, `Aquatic Toxicology Branch ;
Subject: Whole effluent toxicity test results
Duke Energy McGuire
TIES Permit # NCO024392/002`
Mecklenburg County
The aquatic toxicity test using a grab sample of effluent discharged from. the Duke Energy McGuire 002 has been
completed. Duke Energy McGuire 002 has a permitted discharge to the Catawba River (7Q10 of 80 CFS). A
whole effluent sample was collected on November 3td by Wes Bell for use in an acute 8-hr Ceriodaphnia dubi r
:full -range toxicity test. The tent resulted in a pass. Toxicity test information follows.
Test Type Acute 48 hour Ceriodaphnia dubi a full -range
Test Concentrations 1 s,. 2, 64, 82, 100%
"Test Result Pass (L C50 >l.t)t'!°, ; LC 0 must be >80% for a pass)
Control Survival 100%
Test Treatment Survival 100%
Sample pH 7.69 SU
Sample Conductivity 106.1 micro os/cm
Sample Total Residual Chlorine <0.10 m /L

Division of Water Resources
December 9, 2016
To: Corey Basinger
"Water Quality Regional Operations, MR0
Through: Crotty A. Moore
Supervisor, Aquatic Toxicology Branch (ATB)
From: ICarol Hollenkamp
Quality Assurance Olcer, Aquatic Toxicology Branch (ATB)
Subject: Whole effluent toxicity test results
Duke Energy McGuire
NPDES Permit ## l C€ 024392/00
Mecklenburg County
The aquatic toxicity test using grab samples of effluent discharged from the Duke Energy McGuire
facility has been completed. This facility has a permitted effluent discharge entering the Catawba River
(7Q10 of 80 CFS), Whole effluent samples were collected on November 15 and November 17 by Wes
Bell and facility representative Michael Mac ay for use in a chrome Cer i daphnia dubia pass -fail toxicity
test. This test passed. Toxicity test information follows.
Test Type 3-Brood Cefiodaphnia dubia chronic pass fail
Test Concentrations 2.9%
Test Result Pass
Control Survival 100%
Control Mean Reproduction 27.0 neonates
Test Treatment Survival 9 %
Treatment Mean Reproduction 25.4 neonates
]First Sample pH 7.22 SU
First Sample Conductivity 76.5 micromho/cm
First Sample Total Residual Chlorine <0.10 m /L
Second Sample pH 7.335 SU
Second Sample Conductivity 77.8 micros hos/cm
Second Sample Total Residual Chlorine <0.1 U mg/L
Test results for the above samples indicate that the effluent would not be predicted to have water quality
impacts. Please contact us if you have any questions or if ftuther effluent toxicity monitoring is desired.
e may be reached at [phone].
Basin: CTB33
c: Central Files
Wes Bell (MRO)

M
WMENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles We it , R E.
Governor Director
April27 2012 F7
CERTIFIED MAIL
RETURNCEIPTREQUESTED: 7007 1490 00045533 6691
Michael A. Rulie
Environmental Manager fr 00 k V <L
Duke Energy Carolinas, LLC
P.O. Box 1006
Charlotte, NC 25201-1006
SUBJECT: NOTICE OF VIOLATION: NOV-2012-TX-0031
Whole Effluent Toxicity (WET) Testing
NP DES Permit No. NCO024392/002
Duke Power- McGuire 002
Mecklenburg County
Dear Mr. Rulte:•
This is to inform you that a review of your toxicity self -monitoring report form for the month of February 2012 indit
the toxicity limitation specified in your DES Permit.
You should take whatever remedial actions are necessary to eliminate the conditions causing the effluent toxicity vie
forts may include conducting a Toxicity Reduction Evaluation (), a site -specific study designed to identify t t
f effluent toxicity, isolate the sources of toxicity, evaluate the effectiveness of toxicity control options, and confirm
effluent toxicity. Please be aware that North Carolina General Statutes provide for assessment of civil penalties for
DES permit limitations and requirements.
The reverse side of this Notice contains important information concerning your Whole Effluent Toxicity Monitoi
Requirements. Please note appropriate mailing addresses for submitting your Discharge Monitoring Reports (Pr
Toxicity (A7) Vest Farms. We encourage you to review this information; if it would be helpful to discuss this si
solutions to resolve effluent toxicity noncompliance, please contact Mr. John Giorgino with this office at (19) 743-
(4erly,
r
Cindy Moore
Supervisor, Aquatic Toxicology Unit
cc: nbs-Mooresville Regional Office
John Lesley -Mooresville Regional Office
Central Files
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621 e
Location:4401 Reedy Creek Road, Raleigh, North Carolina 27607 NofthC
Phone: [phone] FAX: [phone] t Customer Service:1-877-623-6748
Internet: http://`h2o,enrstate.nc.us/esbf
An Equal Opportunity i Affirmative Action Employer

UR--�UILJ 41
Fnvirnr
Internet:
An Equal Opp
WHOLE EFFLUENT TOXICITY,
&WMUHLL=•
)NITORING AND REPORTING INFORMATION
Quality
trod to the following address:
Quatity
Lion
,-1621
later than 30 days after the end of the reporting t)eriod
of multiple concentration toxicity testing upon failure of any
is lower than the permit limit, then at least two multiple
wo months. As many analyses as can be completed will be
•
if Sciences Section
vice Center, Rjler h, North Carolina 27699-1621
One
I Reedy Creek Road, Raleigh, North Carolina 27607
NorthCarolina
43-8400 k FAX: [phone] k Customer Service: 1-877-623-6748
'/h2o.enr.state,ncus/esb1
NaturiallY
ity t Affirmative Action Employer

1 4-
,-
1r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September;10, 2009
Mr John Williamson
Duke Energy
McGuire Nuclear Station
12700 Hagrs Ferry Road
Huntersville, North Carolina 28078
Subject: Toxicity Test Results
Duke Energy McGuire Nuclear Station
NPDES Permit No. NCO024392
Mecklenburg County, NC
Dear Mr. Williamson:
Enclosed is a copy of the toxicity test results relative to the inspection conducted at the subject
facility on August 18„ 19, and 25 2009 by John Lesley of this Q"
collected for use in acute and chronic toxicity tests. 'Test result,
The report should be self-explanatory; however, should
report, please do not hesitate to contact Mr. Lesley or me at (7C
Sincerely,
fv
Hobert B. Krebs
Regional Supervisor
Surface Water Protect
Enclosure
cc: Central Files
Susan Meadows, Aquatic Toxicology Unit
Mecklenburg County Water Quality Protection
Mailing Address Phone [phone] Loeatio
610 East Center Avenue, Suite 301 Fax [phone] East
Mooresville, NC 28115 Moores
Internet: ww ncwateronalit
ion
n NOne
,�.,�thCarolina
Center avenue, Suite 301 'i�iZlfClf
v

Division of Water Quality
August 27 2009
MEMO ` NDUM
To: Rob Krebs'
Regional Supervisor, Surface Water Protection, M O
Through:
From:
----J - --
T
Test
Sa
.. Moore C l
dlenkamp
assurance Officer, Aquati
ffluuent toxicity test resit
twer-McGuire 00 1
Permit ## NC004392/0
iburg County
lest Type 24-ho
;nitrations 90% s
3t Result Pass
p][ 7.16 SU
vity 674 micronif
true <0:1 mg/L
is desired. We may be reached at [phone],
Basin.: CTB 3
cc: Central Files
John Lesley, Ml
x
,s/fail

Division of Water Quality
August 25, 2009
_MEMQRAN D-UM
To:
Rob Krebs
Regional Supervisor, Surface Water Protection, MRO
Through:
Cindy A. Moore (A
Supervisor, Aquatic Toxicology Unit
From:
Carol Hollenkamp (Y
Quality Assurance Officer, Aquatic Toxicology Unit
Subject:
Whole effluent toxicity test results
Duke Power McGuire-002
NPDES Permit 9 NCO024392/002
Mecklenburg County
The aquatic toxicity test using a grab sample of effluent discharged from Duke Power McGuire-0021
has been completed,
Duke Power McGuire-002 has an effluent discharge permitted 0.3315 MGD
enterinLy the Catawba
River (70 10 of 80 CFS). A whole effluent sample was collected August 18,
LC50 for the sample was greater than 100%. Toxicity test information follows.
Test Type
48-hour Ceriodaphnia dubia definitive
Test Concentrations
16, 32, 64, 82 and 100% sample
Test Result
1,C50 >100%
Control Survival
100%
Test Treatment Survival
100% in the 100% treatment
Sample Total Residual Chlorine <0. 1 mg/L
The LC50 for this sample indicates that the effluent -would not be predicted to have acute water
quality impacts on receiving water. This sample was split and sent to Environmental Testing
Solutions, the contract laboratory used by Duke Power McGuire. The acute Ceriodaphnia dubia
definitive toxicity test ran by Environmental Testing Solutions also resulted in an LC50>100%.
Please contact us if further effluent toxicity monitoring is desired. We may be reached at (919) 743-
8401.
Basin: CTB 33
cc: Central Files
John Lesley, MR( /
Aquatic Toxicology Unit Environmental Sciences Section

'Iq
Division of Water Quality
August 27 2009
MEI I( RANDUNI
To: Rob Krebs
Regional Supervisor, Surface Water Protection., MRO
Through: Cindy A. Moore
Supervisor, Aquatic Toxicology Unit
From: Carol Hollenkamp
Quality Assurance Officer, Aquatic Toxicology Unit
Subject: Whole effluent toxicity test results
Duke Power -McGuire 005
NPDES Permit # NC00243921005
Mecklenburg County
The aquatic toxicity test using grab samples of effluent discharged from Duke Power -McGuire 005 has
been completed. Duke Power-MeGuire 005 has a permitted effluent discharge permitted that is 0.754
million gallons per day (MGD) entering the Catawba River (7Q10 of 80.0 CFS). Whole effluent samples
were collectedon August 18' and August 21 by John Lesley and facility staff for use in a chronic
Ceriodaphnia dubia pass/fail toxicity test. The test using these samples resulted in a pass. "Toxicity
information follows.
Test Type 3-Brood Ceriodaphnia dubia pass/fail
Test Concentrations 1.4% sample
Test Result Pass
Control Survival 100°✓
Control Mean Reproduction 23.0
Test Treatment Survival 100%
Treatment Mean', Reproduction 24.7
First Sample pH 7.54 SU
First Sample Conductivity 77.9 micromhos/cm
First Sample Total Residual Chlorine <0.1 mg/L
Second Sample pH 7.1 SU
Second Sample:. Conductivity ' 74.5 micromhsfcm
Second Sample Total Residual Chlorine <0.1 mg/L
Test results for the above samples indicate that the effluent would not be predicted to have water 'quality
impacts' on receiving water. "These samples were split and sent to Environmental Testing Solutions, the
contract laboratory used by Duke Power -McGuire. The chronic Ceriodaphr is dubia pass/fail toxicity test
run by Environmental Testing Solutions also resulted in a pass. Please contact us if further effluent toxicity
monitoring is desired. We may be reached at [phone].
Basin: CTB 33
cc: Central Files
John Lesley, MR&
Aquatic Toxicology Unit Environmental Sciences Section

Division of Water Quality
September 27, 2007 RECEIVED
MCA NDUM 0 U -- 4 2
007
To: Rob Krebs
Regional Supervisor, Sur `ce Water Protection, MRC}
if l
Through: Cindy A. Moore
otedon
Supervisor, Aquatic Toxicology Unit
From: Sandy Mart
Quality Assurance Officer, Aquatic Toxicology Unit
Subject: Whole effluent toxicity test results
Duke Power -McGuire 001
NPDES Permit # NCO024392/001
Mecklenburg County
The aquatic toxicity test using a 24-hour composite sample of effluent discharged from Duke
Power -McGuire 01 has been completed. Duke Bawer -McGuire 001 has an effluent
discharge entering Lake Norman (7Ql0 of 80 CFS). A whole effluent sample was collected
September 25, 2007 by MRO staff for use in an acute Cer°iodaphnia dubia pass/fail toxicity
test. The sample passed the acute Ceriodaphnia dubia toxicity test. Toxicity test information
follows.
Test Type 24-hour CerRodaphnia dubia pass/fail
Test Concentrations 90% sample
Test Result Pass
Control Survival 100%
Test Treatment Survival 100%
Sample pH 7.21 SU
Sample Conductivity 55.9 micro os/cm
Sample Total Residual Chlorine <0.0052 mg/L
Test results for this sample indicate that the effluent would be predicted to not have acute
water quality impacts on receiving water. Please contact us if further effluent toxicity
monitoring is desired. We may be reached at (91 ) 733-2136.
Basin: CT 32
cc: Central Files
John Lesley, MRU
Aquatic Toxicology unit Environmental Sciences Section

f
an acute Cer°ivdaphnia dubia definitive toxicity test. The LC50 for the sample was greater
than 100%. ' Toxicity test information follows.
Test Type 4-hour Ceriadaphia dubia definitive
Test Concentrations 10, 20, 40, 64 and 100% sample
Test Result LC50 >100%
Control Survival 100%
Test Treatment Survival 100% in the 100% treatment
Sample pH 7.74 SU
Sample Conductivity 9.9 micromhoslcm
Sample Total Residual Chlorine 0.0212 mg/L
The LC50 for this sample indicates that the effluent would not be predicted to have acute
water quality impacts on receiving water. Please contact us if further effluent toxicity
monitoring is desired. We may be reached at (91 ) 733-2136.
Basin: CTB33
cc: Central Files
Mllft
Aguati
wironmental Sciences Section

\NA ,,,
A0� Michael F. Easley, Grove
wl
William G. Ross Jr., Secretar
North Carolina Department of Environment and Natural Resouroc
> w4
Alan W. Klimek, P.E. Directc
Division of Water Qualit
August 24, 2006
Mr. John Williamson
Duke Energy Corportation
12700 Hagers Ferry Road
Mail Code: MG01EM
Huntersville, NC 28078
Subject: Toxicity Test Results
Duke Energy Corporation -McGuire
NPDES Permit No. NCO024392
Mecklenburg County, NC
Dear Mr. Williamson:
est. The tesi
a scheduling conflict.
The report should be self-explanatory; however, should you have any questions concerning
this report, please do not hesitate to contact Mr. Lesley or one at [phone].
Sincerely,
Ilex
Gleason, P.E.
Surface Water Protection Regional Supervisor
Enclosure
cc: Central Files
Kevin Bowden, Aquatic Toxicology Unit
Mecklenburg County Health Department
MAOne L Carolina
NMEW
Mooresville Regional Office Division of Water Quality Phone [phone] Customer Service
Internet: mmLNncwati rou lit .org 610 East Center Ave, Suite 301 Mooresville, NC 28115 Fax [phone]
An Equal OpportunitylAffirmative Action Employer -- 50% Recycled/10% Post Consumer Paper

Duke Energy Corporation - McGuire
NPIDES Permit No. NCO024392 - 005
Page 2
Whole effluent samples were collected on Aug
Lesley for use in a chronic Ceriodaphnia dubia pass/fi
McGuire has an effluent discharge permitted at 0.7541
CFS). The test using these samples resulted in a pass.
Test Type 3-13
Test Concentration 141
Test Result Pas,,
Control Survival 100,
Control Mean Reproduction 27.4
Test Treatment Survival 91.-j
Treatment Mean Reproduction 26.2
First Sample pH 6.81
First Sample Conductivity 57.9
First Sample Total Residual Chlorine <OX
Second Sample pH 7.21
Second Sample Conductivity 57.8
Second Sample Total Residual Chlorine <0.0
>nates
,nates
�romhos/cm
mg/l
romhos/cm
)hn
.titan -
Test results for these samples indicate that the discharge would not be predicted to have
water quality impacts on the receiving stream.

Division of Water Quality
August 18, 2006
MEM NUM'
To: Rex Gleason
Regional Supervisor, Surface Water Protection, MRO
From: Sandy 'Mort
Quality Assurance Officer, Aquatic Toxicology Unit
Subject. Whole effluent toxicity test results
Dube Power -McGuire
NPDES Permit 4 NCO024392/005
Mecklenburg County
The aquatic toxicity test using grab samples of effluent discharged from Duke Power -
McGuire has been completed. Duke Power -McGuire has an effluent discharge permitted at
0.754 million gallons per day (MGD) entering Catawba River (7 10 of 80.0 CF ). Whole
effluent samples were collected on August 8 and 11, 2006 by John Lesley for use in a chronic
C'er�iodaphnia dubia pass/fail toxicity test. The test using these samples resulted in a pass.
Toxicity test information follows.
Test Type 3-Brood Ceriodaphnia dubia pass/fail
Test Concentrations 1.4% sample
Test Result Pass
Control Survival100%
Control Mean Reproduction 27.4 neonates
Test Treatment Survival 91.7%
Treatment Mean Reproduction 26.2 neonates
First Sample pH 6.81 SU
First Sample Conductivity 57.9 micromhos/c
First Sample Total' Residual Chlorine <0.0052 g/L
Second Sample pH 7.21 SU
Second Sample Conductivity 57.8 micromhos/cm
Second Sample Total Residual Chlorine <0.0104 mg/L
Test results for these samples indicate that the effluent would not be predicted to have water
quality impacts on receiving; water. Please contact us if further effluent toxicity monitoring is
desired. We may be reached: at (919) 73-2136.
Basin: CTB33
cc: Central ]Files
John Lesley, MRO
Aquatic Toxicology Unit environmental Sciences Section

\NA - Michael F. E y, Governor
7z'
William G. Ross Jr_ Secretary
North Carolina Department of Environment and Natural Resources
0
Alan W. Klimek, P. E. Director
Division of Water Quality
2
October 5, 2004
Mr. Mark D. Hunt, Manager, McGuire Environmental, Health, and Safety
Duke Power Company
McGuire Nuclear Station
12700 Halters Ferry Road
Huntersville, North Carolina 28978
Subject: Toxicity Test Results
Duke Power McGuire Nuclear Station
NPDES Permit No. NCO024392
Mecklenburg County, NC
Dear Mr. Hunt:
Enclosed is a copy of the toxicity test results relative to the inspection conducted at the
subject facility on September t4, 2004 by John Lesley of this Office, Effluent Samples of outfall
005 were collected on September 14 and 17, 2004 by Division staff for use in a chronic toxicity
testa Grab samples of outfalls 00t and 002 were collected on September 14, 2004 for use in acute
toxicity tests. All tests passed; however, due to control performance, the test result for outfall 002
could not be used for compliance purposes.
The report should be self-explanatory; however, should you have any questions concerning
this report, please do not hesitate to contact Mr. Lesley or me at [phone].
Sincerely,
D. Rex Gleason, P.E.
Water Quality Regional Supervisor
Enclosure
CC' Central Files
Kevin Bowden, Aquatic Toxicology Unit
Mecklen County Health Department
Noo'AhCarolina
Xqtut'allb(
--4-43-6, MKI
N. C. Division of Water Quality, Mooresville Regional Office, 610 E. Central Ave, Suite 301, Mooresville NC 28115 [phone] Customer Service
1-877-623-6748

Duke Power McGuire Nuclear Station
NPDES Permit No. NCO024392
Page 2
Whole effluent samples of outfall 005 were collected on September 14 and 17, 2004 b
John Lesley for use in'a chronic Ceriodaphnia dubia pass/fail toxicity test. Duke Power McGuire
Nuclear Station outfall 005 has an effluent discharge permitted at 0.754 MGD entering the
Catawba River (7Q10 of 80.0 CIiS). The test using these samples resulted in a pass. Toxicity'test
information follows:
Test Type 3-Brood Ceriodaphnia dubia pass/fail
Test Concentration 1 A % sample
Test Result Pass
Control Survival 100%
Control Mean Reproduction 25.6 neonates
Test Treatment Survival 83.3 %
Treatment Mean Reproduction 21.5 neonates
:First Sample pH 7.41 SU
First Sample Conductivity 61.5 micromhos/cm
First Sample Total Residual Chlorine <0. 052 mg/t
Second Sample pH 7.34 SU
Second Sample Conductivity 62.0 micromhos/cm
Second.. Sample Total Residual Chlorine <0.0052 mg/t
Test results for these samples indicate that the effluent would not be predicted to have
water quality impacts on the receiving stream.
A grab sample of outfall 002 was collected on September 14 004 for use in a 48-hour
Ceriodaphnia dubia definitive test.The test resulted in a LCY) of>90 %; however the test is
invalid doze to control performance.
A grab sample of outfall 001 was collected on September 14, 2004` for use in a
Ceriodaphnia dubia 24-hour acute pass/fail toxicity test. The test resulted in a pass at 90% (no
mortality).

Division of Water Quality
t iv,
September 17, 2004
To Rex; Gleason
Water Quality Supervisor, MR()
� z
Through: Matt Matthews `'
Supervisor, Aquatic Toxicology Unit
From..: Sandy Mort
Quality Assurance Officer, Aquatic Toxicology Unit
Subject: Whole effluent toxicity test results
Duke Power -McGuire 001
NPDES Permit ## NCO02439 /001
Mecklenburg County
The aquatic toxicity test using a 2-hour composite sample of effluent discharged. from Duke
Power -McGuire 001 has been completed.Duke Power -McGuire 001 has an effluent
discharge entering Lake Norman (Q10 of 80 CFS). John Lesley collected a whole effluent
sample September 14, 2004 for use in an acute Ceriodaphnia dubia pass/fail toxicity test.
The sample passed the acute Ceriodaphnia dubia toxicity test. Toxicity test information
follows.
Test Type 24-hour Ceriodaphnia dubia pass/fail
Test Concentrations 90% sample
Test Result Pass
Control Survival 100%
Test Treatment Survival 100%
Sample pH 7.24 SU
Sample Conductivity 67.0 micro os/cm
Sample Total Residual Chlorine <0.0052 g/L
Test results for this sample indicate that the effluent would be predicted to :not have acute
water quality impacts on receiving water. Please contact us if further effluent toxicity
monitoring is desired. We may be reached at (919) 733-21.
Basin: C'TB32
cc Central Files
Aquatic Toxicology Unit Environmental S'cienci

Division of Water Quality
m'I'OURCEIII
September 20, 2004
MEMORANDUM OCT 0 4 2004
To: Rex Gleason
Water Quality Supervisor, MRO
n
Through: Matt Matthews r4'
Supervisor, Aquatic Toxicology Unit
From: Sandy Mort 4�t�
Subject
incer, Aquatic toxicology unit
ty test results
e 002
0024392/002
performance and may not be used for compliance monitoring. The LC50 for the sample was
greater than 90%. Toxicity test information follows.
Test Type
48-hour Ceriodaphnia dubia definitive
Test Concentrations
16,32, , 64, 80 and 90% sample
Test Result
LC50 >90% (In -,salad)
Control Survival
35.0%
Test Treatment Survival
100% in all treatments
Sample pH
7.33 SU
Sample Conductivity
121 micron-Lhos/cin
Sample Total Residual Chlorine
<0.0052 mg/L
Test results for this sample indicate that the effluent would be predicted to not have acute
water quality impacts on receiving water.
Please contact us if further effluent toxicity
monitoring is desired. We may be reached at [phone],
Basin: CTB33

_,. J r ._
Test Concentrations
_ _ ,_.. ,E _. f
1.4% sample
Test Result
Pass
Control Survival
100%
Control Mean Reproduction
25.6 neonates
Test Treatment Survival
83.%
Treatment Mean Reproduction'
21.5 neonates
First Sample pH
7.41 SU
First Sample Conductivity
61. 5 micrumhoslcm
First Sample Total Residual Chlorine
<0.052 m1L
Second Sample pH
7.34 SU
Second Sample :Conductivity
62.0 micromhoslcm
Second Sample Total Residual Chlorine
<0,0052 tn1L
Test results for these samples; indicate that the effluent would not be predicted to have water
quality impacts on receiving water. Please contact us if further effluent toxicity monitoring is
desired. We may be reached at (1) 73-2136.
Basin: CTB33
cc: Central Files
Aquatic Toxicology Unit
Environmental Sciences Section