NC0004987_Regional Office Historical File Pre 2018 (3)

Paul omovftc^RE,
Sevicl,vice President
cnvironnenb,/He,a/r? &Sanet,y
and Ovena,k,nmSupport
mb88»�eF��{r
_ o//a.��
980)
December 19.2Ol9
Mr. Bob Sledge
North Carolina Department ofEnvironmental Quality
16l7Mail Service center
Raleigh N[27699-l6l7
RE: Response toNOV-2*l9'SP'OQU8
Duke Energy Carolinas, LL[,
Marshall Steam Station
Special Order by Consent WQS17-009
Dear Mr. Sledge,
Duke Energy Carolinas, LLC (Duke Energy) appreciates the opportunity to provides this response
and supporting information tgthe subject Notice ofViolation, Duke Energy continues to
progress with activities at the Marshall Station in efforts to safely close the station's ash basin.
This response provides supporting and background information to demonstrate Duke Energy's
position that the noted exceedencemfwater hardness was due tocircumstances and events
beyond the reasonable control of Duke Energy and therefore further penalties and actions
should not bedue imaccordance with condition 5 ofthe subject order.
Background and claim
Duke Energy asserts that the xvate, hardness levels were not related to any inappropriate
action or inaction on the part of Duke Energy and were a result of "on extronrd/ crycvent
beyond Duke Energy's control". /\ quarterly sample was taken asrequired from the location
identified as S-lon September 25' 2019. This sample test result was reported ashaving a
"water hardness~ of316 nnQ/[ The subject Consent Order establishes an interim level for this
location of28Omg/i
Duke Energy contends that the levels of water hardness in the sample is primarily a function of
drought related conditions atthe time ofthe sample and therefore beyond the control nfDuke
Energy, As noted during the sampling event, the Omvv of the tributary was as |om/ as has been
observed during the term ofthe Consent Order. Table 1presents the data collected atlocation
S'I since the effective date of the consent order, This data Shows the genera/ correlation
between concentration ofwater hardness and flow. Chlorides values are also presented asan
additional calibration point.

Mr. Bob SIedge
Response to NOV SP 2019-0008
December 19, 2019
Table 1. Flow and Hardness comparison
Date
6/7/2018'
9/11/2018
10/31/2018
3/27/2019
5/7/2019
9/25/2019
11/22/2019
Approximate Flow (gpm)
13.46
4.94
15.71
Not recorded
No flow recorded
4.75
Not recorded
Hardness (mg/I)
159
195
137
138
166
316
205
Chloride'. (mg/I)
66
84
50
53
63
170
97
12/5/20194
1 Chloride data presented as an additional reference
2 First sample event after the effective date of consent order EMC WQ517-009
13
1693
63
3The only difference in operating conditions between the 9/25/19 sample and the 12/5/19 sample is meteorological
conditions. 9/25/19 was taken during dry conditions and 12/5/19 was taken after a return to more normal rainfall levels.
Samples taken evaluating various treatment between September 25 and December 5 will be submitted under separate cover.
As demonstrated in Table 1, when flows are generally below 5 gpm, hardness levels are around 200 mg/I
or greater. When flows are higher, the hardness concentrations are generally lower. This supports the
position that the hardness concentration was primarily caused by lack of rainfall and therefore beyond
the control of Duke Energy. This reduction in flow volume during dry periods means that groundwater
impacted by the ash basin makes up a larger proportion of the base stream flow than at other times and
while the groundwater is likely carrying no more (and possibly even less) mass of pollutants than
historically, the concentration increased above the listed Interim Action Level (IAL). This was an event
that was not foreseen during the development of the IALs and was beyond the reasonable control of
Duke Energy. Duke Energy is undertaking an expedited schedule under the subject consent order to
lower the water levels in the ash basin to address this very type of situation in the long term. As of
December 8, 2019, the water level has been lowered by 10 feet. Because of the review of hardness
data, Duke Energy has submitted a request to modify the subject consent order to amend the interim
action level for hardness.
Duke Energy has previously submitted a report detailing specifics as to the influence of drought on the
sampling event. This report was required to be developed and submitted by condition 2.(c).(1) of the
Consent Order. Duke Energy includes the details and supporting information in that report by reference
and has attached a copy of that report as a part of this submittal. A second, independent evaluation of
the water hardness levels at location "5-1" in relation to rainfall was undertaken as a result of the Notice
of Violation and is also attached. This evaluation documents the inverse relationship using a 6-week
precipitation total and measured water hardness at location "5-1".
An additional potential minor factor that led to increased hardness concentrations in the ash basin is the
facility's requirement to cease all flows to the ash basin under the Federal CCR rule. Flows to the ash
basin were terminated in April 2019 in accordance with the Federal CCR rule. This led to the removal of
a service water flow necessary to protect the former wastewater wetland treatment plants but also
appears to have resulted in increased hardness levels in the ash basin itself. Table 2 illustrates the ash
basin hardness levels before and after the removal of wastewater flows as required by the Federal CCR
rule. It appears, based on sampling data, that the cessation of flows to the basin led to an increased

Mr. Bob Sledge
Response to NOV SP 2019-0008
December 19, 2019
hardness concentration level in the ash basin after the April 11, 2019 wastewater cessation date. Duke
Energy was required by Federal law to remove these flows in order to comply with the Federal CCR rule.
However, based on review of well data near S-01 it is concluded that the ash basin increase in hardness
would have a minor effect on the increase in hardness at 5-1, with the drought still being the main cause
of this issue,
Table 2. Measured ash basin hardness levels
T Ash basin discharge
hardness (rng/I)
1/7/2019 404
2/4/2019 625
3/4/2019 493
4/1/2019 683
/3/2019
5/8/19 mm
7/1/2019
8/5/2019
9/3/2019
10/7/2019
889
767
827
858
900
Ash basin discharge
hardness (mg/!)

Mr. Bob Sledge
Response to NOV SP 2019-0008
December 19, 2019
Additional support and mitigating factors
1. There was no harm associated with the water hardness level measured on September 25, 2019.
Water hardness itself is not an environmental concern. The North Carolina Environmental
Management Commission has not established a criterion for water hardness in Class "C" waters
but only in waters classified as "water supply". The criteria in "water supply" waters is intended
to protect against the scale buildup in pipes and appurtenances and in aesthetic conditions that
can be exacerbated by hardness of water (e.g. difficulty in lathering of soap, etc).
Water hardness can also reduce the bio-availability of certain metals and thereby reduce toxicity
from metals. The following excerpt is taken from the DEC. document Summary of North Carolina
surface water quality standards dated April 2015.
The calcium and magnesium ions that contribute to water hardness are
known to lower the toxicity of some metals by competing with the
dissolved metal ions for binding sites on an aquatic organism. Toxic
impacts to aquatic organisms occur when the metal ions bind to these
sites on the organism (such as on the gills of a fish). The higher the
water hardness (indicating more hardness related ions ore present) the
lower the toxicity of some metals. The hardness ions are able to out -
compete the metal ions for binding sites on the aquatic organisms;
therefore, the organisms are ultimately exposed to less metal.
2. While the hardness of the small tributary to Lake Norman did have a sample result above the JAL
in September 2019, the water hardness in Lake Norman has remained consistently low and
unimpacted. Table 3 lists the measured water hardness in Lake Norman below the S-1 location
and above any drinking water intake.
Table 3. Measured water hardness in Lake Norman
Date
6/7/2018
9/11/2018
10/31/2018
3/27/19
5/7/19
8/8/19
12/5/19
Upstream Water hardness (mg/I)
13.5
14.6
14
12.8
14.8
15.9
19.2
Downstream Water hardness (mg/I)
13
14.3
14.4
12.7
15
16.4
19.3
3. Duke Energy will soon be submitting a groundwater corrective action plan for the site. In this
plan Duke Energy will provide more details as to proposed measures to address impacted
groundwater influences at the location termed "5-1" in the consent order. Duke Energy
requests that the Department review those proposed Tong -term measures prior to forming a
decision as to whether or not to demand a stipulated penalty for the exceedence of water
hardness IAL at sampling location "S-1".

Mr. Bob Sledge
Response to 'NOV SP 2019-0008
December 19, 2019
if you have any questions regarding this letter, please contact Mr. Robert Wylie at (704) 38
4669 or robe i t,w V� .m.''duke-energ co
l certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true,
accurate, and complete. l am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing violations.
Senior Vice President
Attachments
cc: MRO DEQ WQ Supervisor w/enclosure
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Robert Wylie - via email
Shannon Langley - via email
Chris Hallman -via email
Richard Baker via email
Rick Roper - Marshall Station Manager

FINDINGS OF
D EVALUATION 0
UNDER PECIAL
c
-ASSESSMENT
EMECIAL ACTII
DER BY CONSENT
17
AT
MARSHALL STEAM STATION
8320 NC HIGHWAY 150
TERRELL, NORTH CAROLINA 286 2
NOVEMBER 2019
PREPARED FOR:
DUKE ENERGY CAROLINAS, LLC
PREPARED BY:

FINDINGS OF REASSESSMENT AND
EVALUATION OF REMEDIAL ACTIONS UNDER
SPECIAL RQER BY CONSENT
E C ,I d 1 —OO9
AT
MARSHALL STEAM STATION
8320 NC HIGHWAY 150
TERRELL, NORTH CAROLINA 28682
NOVEMBER 2019
PREPARED FOR
DUKE
ENERGY.
DC KE ENERGY CAR©LINAS,

Findings of Re -Assessment arii; Eva➢irate rt f,:it Actiu
Special Order by Consent EM SO W SI.
Duke Enti r er r to a . � L� Marshall
�lto �,..
� �r h�zJl Stearn Station
TABLE OF CONTENTS
SECTION
TLO INTRODUCTION__
10 RE -ASSESSMENT" APPRO. CI1. .—,a.mas„s�ff,,
10 RE -ASSESSMENT ,AC"TIV(I iES AND FINDINGS—.,,.....om,.,.__
.1 5tre. am C4(riditioi'14 ....,. ,..
Surface''"trwIr�lir'1
3.3 Groundwater Sat i IE i r
Asr7 basin C:z,}riclltl rt, iri
^
3.5 Local E/r,'rtecipit:��tltl.rt
Ion Exchange R ";" in Eva"
nd D-r
4.0 PRELIMINARY Ct)NCl..,USION5...,,..ose.,,.,,,,...
5.0 'PROPOSED REMEDIAL OPTIONS.,—,. .......
1 Short -Term ,.__..e.......... ..
5.. I. 1 No:rm d 7t reaS'f`" flow C 1pt
; . . Normal St ear„ftItt Capture,
Stre aI , Charinei
ate In ectic)r'i ..
n,-�errn...,._........
Impoundment
I Treat TreTIC
Stream Channel Dew a -rung, T='iimp arid Treat E.xtracti,.'>.ti Wells is . .....
d Treat E,atr actlon S tE with
1 A.sh Basin
'. BaS.LO
REMEDIAL EITECTIV 1ESS MO\ ORING AND REPORTING t:,..o,,.,,
.Action .
PAS€:
3-4
4-1
1

Rec
LIST OF TABLES
Res
J6tOHz/ Hardness Ley/saw A
Cl
e4
LIST OF FIGURES

Findings of Pe -Assessment at d E Edluation ot t emedia! Actions Under
SJ ecial Order by Consent -• EMC SOC WQ S17-009
Duke Energy" Carolinas, LLCC, MarshaIISteam Sta tion
1.0 INTRODUCTION
Duke Energy,
iN=°[anagemen.t Commissi@n entered into Sp ciai Order Bs, Consent SOC No. 17 (R)9, which
was approved on April 18„ 7018,
(Duke Energy) a.tad the North C.`arolina Environmental
I\'lunzt rz°rr la slfled Gvaters o,
found its Attach 8 of the aSOC, and r
completed as ret..
eritn ac
Samples L 0lI cttJ it ? I Wan di
hardness at
percent
This dot
remeci
non -constructed seeps„
been
were established in t
0 standard units (S.lr,
by
Duke En'
S.rnent.
2(7r:*. in Cr �tr:
f ha
r lcl,c' 7tcc.ecl ,P`?'L r;,..
r r
St'
a Ere', [trope'

Findings r
()lint's, Li -halt Stearn
lipOed
tgit
ntengtar
C len earl
Warr

Fsndin s rrt E e-Assessment and Evaluatir. Actions Under
Special : rs sr l C's ns rat EMC SOC WQ S17.0
Duke Energy Carolinas, I.LC, Marshall Stearn Station
2,0 RE -ASSESSMENT APPROACH
Plaintrs f wr tfa rr ss Bement of kl .. Seep began on Se naher
receipt of the lr3hor,3tor report corrta rrl.he third quarter
September 25, 20'4 same
lhefaili«i
develop preliminary
required by the SC.)C
Evaluate conJ
medial opt
Collect surface water" st:
SOC quarterly
Ocilla'( t
ra n Cl
Sil
it, rien.
Rev' and d e�°: ll Review .and t'vafnit' ?a 9r1C"
De "rota preli;rL'r are cori„l`td`
De velop cone ep"ti.ral rPx"sT1e^n{➢= !
nd
ern o
mitigate off
rnber2a)19
fitic:)r1S and
ek ui waters, as:

r~eriL1a gs t l ar. s s resit r�fld
Specual Order by Consent EMC
Duke Energy Cjrolin."s,, LAX:, Ma
atiun of Remedial, Actions Cinder
17009
hull Stearn Stano.n
3.0 RE -ASSESSMENT ACTIVITIES AND FINDINGS
ssment fief
rforrned multi
5.1 and rert.t
gin. Surface water and g
of the stream reach,, is
bench- and field-testing of
sites °twartdition°s was ;gathered.
'ember 2019
SvriTe rra
g3n on October .10 201.9., Duke Ene, and 5yn
quickly evaluate current condlhran affecting the
tions tor mitigating the hardness levels at the sample
r°trirndwater samples were collected, wpisual reconnaissance
cent wetlands and upland drainage ww-as c:orrw~ u ted,
i,'hTan e resin was performed and information on
Stream Conditions
assessment of iipstrea inand dow
and upland drnLringe area ,-vas i"1C"it
•
char,acteri.zed
"ircontrol
ns
was estimated at 1-2 gallons lre;
g
u,i:tures and da
2t2.i1feet ups
a
Dnditions from natural
rn l i pia>r.c` beaver activity
the teach, w'o°dais
.g stream. conditions and pools
0 that the turbi
ntlt'ticros ranging from
schaarges r,f
thrrirn dr to dr
rr did not indicate
dered to impact Juw n:strea r. wi,iticr, quality
3.2 Surface Water Sampling and Data Evaluation
Surface water sampling d was conducted on October 10,, 201..9 to pro
the re -assessment work, whiw'n Sin .Giied process Control and evaluation samples aim
at assess", ag the effectiveness of lertat potential remedial options.
Samples were olle fed at 2 lc ail r;as upstream of the -1 seep and 3 locations
considered backgrr: and �l.e., ya-nd the influence of groundwater containing cabal
Page. 3 1

Findings of Re -Assessment and Evaluation of Remedjal Actions Under
Special Order by, Consent EMC, SOC bVQ., Si 7-009
November 20119
Duke Energy Carolinas., LL,C, Marshall Steam Station
SvnTerra
constituents), Tie sample locations upstream cif 5-1 were 'S-1 In Process' and '5-1
5pringheadU The background locations were the previously sampled 501-7 and 5W-8
(which are located on small strea.rns o the northwest of the ash ha s,;n1 and a Dei,aii
location fiG-200, Figure 1 illustrates the sampling' locations along the tributary to Lake
Norman, :Monitoring wells in the vicinity of Sul that were sampled as part of this re-
assessment are also shoi,vn on Figure 1. Figure 2 illustra (-es the three background
surface water k ations that were sampled
VVater quality data collected during the re -assessment sa mpling„ indicate an increase ot
historical hardness levels at all locations.
Data provided through inonthly and later quarterly samples at S-1 collected under
NPDES permit NC000,1987 (Outiall 101) from October 2016 to .A 2.018 and quarterly
Sal samples collected under the 50C since 4tile 2018 indicated an average ha alnetsis of
03 mg/L
As shown in Tables 1 a mil 2., 0,10 SOptettlber 25 2019 sarnple result (or hardness t 31,6
mg/t, represents a increase compared to the average hard nes.s .ana lvtica I results ot
203 mLand 1 12'e increase from the highest 5arnpic result .(,2.817 ing/L on 10/6/2016 and
8/712017).: found in the N P D ES arid .50C dataset.
lt should be- noted that doting the. period or coverage of 5-I ili„)all 101L. discharges by
the NPDES permit, a pH limit be.tween 6-0 S.L and 9.0 511 iivas requited, To maintain
complince, the seep Sul flotic Wa5 actively treated using limestone. 'fihe use of
limestone Lin tile. ormarrIt'd tributary: above 5-1 appare.ntly increased the ha
concentrations fia.7 those :sample events, Therefore., the elleviatect hardness valuesduring
the period of NED ES coverage were not considered when determining the SCK: I A Ls
for 5-1, Any, increases and averages noted in this report were derived using the
ha.rolness data collected during tine 'Nil:1ES coverage perio.d disolISSed above

November
TABLE 1
H1 TORIC AND RECENT HARDNESS RE U TS COMPARISON
Sample ID
Sampie ID
TF.(.L,
her
19
Hardness (m
-Ass ssmen = NPOES and
Sampling SOC Average, 201E
October 10, ( tober 2016 Average
2019t: Maya 2019)
213
TA E 2
TRJCAL HARDNESS LEVELS AND AVERAGE
/ )
Collection 1aatti
142

might attect hardness at S-1 were noted.
on "Tale 3
ngs ot 1t-AssesSnent and. Eva ►u tona t s medial ,M
lr r by Consent.- Eh1C SOC WQ S1"°•U09
Ccrarias, LL `. Marshall St/ -am Station
TABLE 2
HISTORICAL HARDNESS LEVELS AND AVERAGE
Sample ID
S"01
Sample Collection
09,' 11l2018
�i0 51 >t11S...
03 `27/201 9
05/07/2019
AVERAGE
November 2019
Sy nTerr.3
Hardness (mg/L)
195
137
li �t d 1,'. *
dell �:C1� 1 Ctt.� gat �t�< I"C1und 7�,.�a��Bi"�ia �. �'it -��w ds��tri�"� t"8r' t��£ith Cl
..t Table 1, the October r lei, +"SAC 19 s 1 rlple res;alt l in a hardness
teaser where compared tc the average 2018 hardness analytical
FiVe samples had been co
August 2018. As shown
l"1;ardnt=.55 1 ;1"_cl variations Lll sllrt'`ce water a pledr to lae seasor'lil
hr<<u11tirss'irr*lher.
rnmrr and ral@ months.
to he ,in mks l.er,lte to severe Li
Additional information one {tn pre-'
be found
t 7te,riiber afC
Secnon
3,3 Groundwater Sampling and Data Evaluation
Ground water samples were e collected t f don
F � on October ;=1. ?e�l'�� r"��r� £"l o
considered to he proximal to the, S 1 loctition, 'Tin following do°e%C
assess water t U ality condition` i e ,_2 i8
1 i.1.1 err;a: �� � S�r�R, GWAY.��� �',�.•ii1',="L7,f'13R,/`F3Ri�,
Gti'ti l.10S/ , A L 1y,•"D l R/BRI.,. GINA--`I 1ti,''' ;..==TAR GWA 15 /D. Thy r 1retdwat .r
samples were analyzed for IMP parameters, including calGr'r r14i a€'1,'a gneslun, The
monitoring ing well locations are shown on Figure 1.
[ a sa r i`i k'b'' and i:o part_ n with th hr t lncal Jataset indicate stable groundwater
gqualit ' con{ltltlrls L.£1 the S-1 w 1i. ewes in constituent concentrations that
ndwtiter quality data are summarized

Cember 2016
ks)
Findings oi Re -Assessment and Evaluation of Rernedial... Actions Linder
Special Order by Consent EN1C SO( WQ S17-009 Nov'ember 2019.
Duke Energy Cardinas, LL.C_ NlarshaH. Steam :Station SynTerra
3.4 Ash Basin Conditions and Decanting
To accommodate closure of the a,sh basin, decanting of free water from the basin via
gravityflow commenced on July 16„ 2019 from a pond elevation of 787.94 fe.et.
lechanical decanting commenced on September 13, 2019 from a pond elevation of
786,44 f eet„Or October 15, 2.019 tile dare of the initial. retassessment site visit, the pond
level was 783,10 feet and decanting operations had removed 8,3,61 million gallons of
water from the ,iish basin for discharge,
Visual conditions of the ash basin during the re -assessment sampling reflected the
decrease ill. pond elevation pond 'surface area appeared diminished and additional
coal ash was exposed compared to pro; icras site observations.
At nearby monitoring well (AleIS the water elevation decreased mere than 3 feet
since gray ity-rlow decanti„ng began.
3.5 Local Pt.:cipitation Data
Approximately. 2 years of regional and lanai precipira on data was reviewed as part of
this re -assessment.
According to date available from the U.S. Drought Monitor
(httiLstaildritiii&qhtitionitof. on1cdti/Nleivs!ILlapAreilivC%a), a 'proiu t prod uced by the
National Drought Mitigation Center, Natidnal ()ceanic and Atmospheric
Administration and United States Department' et Agriculture, the. Marshall Steam
Station area,, during the following time periOdS shown in Table 4, was characterized by
the indicated drcrught conditions!
TABLE 4
DROUGHT CONDITION SUMMARY
Marshall Steam Station Area
Time Period
October 2016
November 2016 -
Janualy2017ffirst 3
Februar - 4ir11 2017
Drought Condition
Abnormaq Dry
1 Moderate
Abnormally Dry
oderate
Mid-Novernber to December 2017 Abnorma
January to February (First 2018 Moderate
Fete
Februa Second Week to March First Week 2018 Abnor
September eeks 2 and 3) 2019 Abnormally Dry
September (Week 4)Qoberwk 1 2019 Moderate
October (Weeks 2 - 4) 2019 Severe
October (Week 5) 2019 Moderate
—
repared by: cli_C Checked by:

Findings :t t sesir est a.t�d l valuati.
eraal Order by=
tilt Energy
t;,y CarC
Data collected by a Duke Energy aLt1c)naated weather stab
Steam Station indicated decreased pre
historical, regional .rainfall records and ge
published by the Drought Monitor,
3.6 ion Exchange Resin Evaluation and Deployment
Preliminary evaluation of remedial options was performed as part of the sua e t r
assessment effort. A raatiot exchange resin,, widely utilized in water -softening and
demineralization treatment, v as selected for bench -testing to determine the
in addressing tl1
t, Anthori :.a
li`ts. Division
November 2019
7nrneiata
at Engineers to place cafe
above the i"s_1 1ocanon.
On October l 6
sample
te�t�t r tp
24 liotirs,., on
naf'nt effect
rshali
otr'ls when compared to average
ed with the drought conditions
dness levels i the 5r71. tvaters. Test results in fa«at. i
a rticeiv*e41 frocrl the North Carolina Department
IZts }urces and United States Army Corps
c .s a tcl related materials in tlatr stt' sm
ter . :7
, :..?l
LNpstream location to increase
9, a tote. hardness field screen test was trttlized to evaluate treatment
5-1 location ',Two o separate hardness test Sr 't t'ed 160 and 200
rrt .'L at a rl. A sample was collected at y- -l. and analyzed per quarterly SOC pi meters,
1n additional sample '5.1 Above' (up t['' iraa t?t tl`le tr'atirient socks„, i l a'`7ed for
hardness. Analytical results indicated hardness at r' valg L at 5-1 :and :110 rra ' „ at'S-.1
Above', .Rellabtlrt\ of the field hardness screening'inr rrraat' era was reconsidered alter
rece t n tla-, October 18 sample d ata'se=t
Atter conferring w `a f'' tbe.' cation e'\ 'hare
socks in an ahgnrner
initially° deployed. On October
location parallel rnflotiwr and the
parallel vw tt.h the streaam channel, as well,
sampling (e,g„, flow and turbidity.. normal
rded to a. epoy re
an erp d'i.uartotowM°as
r°7eaw° setc'ks w,vere deployed jut above the S 1
previat.tsl,v'-deployed socks vk°erep repositioned
Once stream conditions were suitable for
zed f approximately' 1 hour after sock
r 3-r

Findings of Re-Asses,iment and Evaluation of Reme.disl Actions Lir
Special Order by Consent EIVICSCX:: WC! S17-009
Duke Energy Carolinas, Marshall 1;tiiami Station
November 2019
SynTerra
installaiicm„ samples ere collected at 5-1 and LInalyzed per quarterly SOC parameters
and '5-1 Above' for hardness. Analytical results indicated hardness at 5-1 at 122 ritigli„
and 'S-1 Above' at 272 trig/1„:
In addition to the SOC parameter sampling described above, 4 hourly 'hardness samples
were collected at 5-1 on October 2 2019„: to assess the effectiveness of the ion exchange
socks over time, Sample results are listed below:
Time 12:10 Result- 1 Ll mg/L
Time 13:10 Result 145 mg,1:
Tirne14:10 Result:149 mg/L
lime 15:10 Result: 155 thgol
The resin socks remained in -place to allow for continued treatment ot seep waters.
Upon determining the effectiveness0 the resln to reduce hardness to levels below the
estabfishe,c1 SOC. interim action levels, ke Energy ordered aC.!ditiOnal s,_ipplies to
maintain file tratitment rhaterials„ vdirle rm..:)re sTLstainable remedial opt iOnS are
evaluated, designed anti implemented

Findings of Re -Assessment and Evaluation of Remedial Actions Under
Special Order by Consem t EMCSOC WQS17009 .November 2019
Duke Energy Carolinas, LI,C, Marshall Steam Satan SynTerca
4.0 PRELIMINARY CONCLUSIONS
Recent and historical dataevaluated for the re -assessment of seep Sol, indicate. -the
reported exceedance of hardness from Q3 SOC (9/25/1.9) s,ample at S-1 (316 mg/L)
exceeds historical hardness concentrations at this location.
Groundwater data collected on October 14, 2019 indicated generally stable conditions
across all well locations and did not reveal any increases in constituents that might have
affected the hardness levels. at Sol, (Table 3)
Ash basin mechanical decanting operations; which began on September 13, 2019,
decreased the ash, nasin free water elevation by 4.84 feet as of October 15, 2019 biyi the
removal of over 83 million gallons of water. Decanting of the ash basin th as
source of the elevated, hardness Concentrations) is part of the longsterm corrective action
to reduce groundwater migration from the basin -toward 5-1„
Correlation between hardness ievelsa tSod (Ou tfa 1 01) and seasonal effects due to
precipitation variation is evident, Eis h0 ;71 Table 2. Severe. droi.ight 1 to in
reduce natural infiltration to ground wa(ter and are likely a contributory factor in the
recent increase in hardness at S-1,
Based on historical trends, hardness levels at SA would be expected to decrease during
the late winter, early spring months when precipitation increases,
[framed i.Eite actions were Pin 'pi/ Duke Energy to reduce hardness levels at Sol and to
mitigate affects to receiving waters. Further remedial ',action development and
implementation will be, require.d to develop a .more permanent remedy,
The exceedance oi the [At_ for hardness in the S In a 1 I low -flow tributary„ has no known
detrimental effect on the environment. There N n .11 Itman health or aquatic life concern
with increased hardness. Water quality standards (WQ)I'll) tor hardness ha only been
established in waters classified as Water Sipply where hardness is considered
undesirable for economic or ,aestnetic reasons(
Hardness levels recorded in Lake Norman as part of SO(, sampling requirements
indicate hardness Levels well below- WQS. Hardness concentrations recorded at the SOC
Lake Norman sample locations have been 20 7 ring/l.„ or ICS'S,

Finding of Re-Ase;,r,iiiient and Ev-aluilhon of Rernedial Action,; Under
Special Order h Ccamto.nt EMC SOC WQ 51'7,009 November 2019
Duke Energy Carol Mas L127 NiArha i St,earn Station SvilTerra
5.0 PROPOSED REMEDIAL OPTIONS
Re -assessment actions conducted ,per the SOC requirements included evaluation of
remedial options for treatment and or control of the S-1 seep to quickly mitigate
possible affects to receiving waters.
After receiving, the data from the September 25„, 2019 sampling event, Duke Energy
immediately puraiuted mi itcn OptiOT1S to reduce hardness levels at the 5-1 seep
location„ Duke Energy tat identified the option to utilize the cation eixchange resin
socks and began procurement of the materials to conduct bench -scale and field -scale
testing. As described in Section 3.6., use of treatment socks did prove acceptable to
decrease hardne,,s levels; however only for short durations, Operation and
maintenance requirements are very high due to frequent replacement needs and their
'use can increase TD5 levels in the treated area Thus, treatment using resin socks is riot
considered a viable solution
Evaluation of short-term and longsterm proposed remedial actions is mad CW-3
the alternatives being considered described below,
All option:5 under consideration require further analy.sis of local hydroiogv and
hydrogeology; planning and engineering, whlch will be completed in the upcoming,
phase cif the response, before selection at the :most effective and implementable
remedial option,
Once approval of the:selected remed la tion system has been received, permitting, final
designs and planning will begin, followed by implementation it trie remedial selection,
5.1 Short -Term
Ash basin decanting„ a part of ash basin closli re, is currently .undervvay and will reduce
the hydraulic head near the topographic divide, located to the west of 5-1,, that
separates the basin from the stream., The reduction Li hydraulic head in the ash, basin
11 reduce the hydraulic driving force for potential constituents of interest (COI)
migration in groundwater from the basin toward 5-1, supporting short-term remedial
efforts,
Currently„ development of long-term corrective action plans for the Marshall Steam
Station are underway, The short-term remediation approaches below are expected t'r)
address the hardness levels in excess of the SOC interim action levels until alternate
remediatiun efforts are implemented.

Findings of Re,Assess
Special Order by Cons
Duke Energy
n o rn aal Ac ins Under
SOC WQ S't J -w019 November 20'1
rshall Steam Station S n1
Capture 1 trk r"C cimannel flow or control ott m I tei iu sty r to the stream
channel ira the c ictrtrty of S•1 were considered the two iuost reliahle and effective
methods to rein di3te the ,hardness, Under both approaches, the collected water wouid
he conveyed to the Marshall Stearn Station wastewater treatment system.
5.1.1 Normal Streamflow
Impoundment
pprr,ach cltilizs are zrr°rp
Lrpstre3rn of tl
rnecha
treatment system.
Dam s
elevated pre-
5,1.2 Normal
Th approach 1Tti
ea
titr arr3'C.i ,radierlt lot
1.d contain '?rOtl,s material
wafer would he collected via ,a mechanical. F ti
strap 3 trtion wastewater treatment system.
Capture, Pump and Treat
°UCture to capture dOrmal stream b
;ntnate (or r'$li1° ntl '' reduce) th
waded water would be collected w is a
rhh;all Steataa Station wastewater
flow Capture, Pump and Treat Trench
dace trench to capture normal stream base flow
elevated preci i
,duce) discharge to
r'.°ndic:tilar to the
Captured
the ti?; rsh3il
5..1.3 Stream Channel Dewatering, Pump and Treat -
Extraction Wells
�rli� cearlo p[ual approach utilizes a Imo of
the stream valley adjacent: scent: to the
the
belo"rV". Extracted groundwater would be collected 'via sa rec.I'1anrcal mean„, 3
delivered to the Marshall Steam „Station wastewater treatment system
5.1.4 Stream Channel Dewatering, Pump and Treat
Extraction Wells with Clean Water Injection
As of the date of this report, the basin closure plan and groundwater corrective
acti-m plain have not 'been 5 Emitted tc NCD Q. 'T 3eret'ore, groundwater

Findings of Re -Assessment and Evaluation of Remedial Actions Under
Special Order by Consent EMC SOC WQ 517-009
Dule Energy Caro • 35, [IC, Marshall Steam Station
No,,ember 2019
SynTerra
remediation alternatives have not been finalized. However, a robust
groun.dwater remedial design is being prepared as part of the Corrective Action
Han Update to con.trol migration c.).1 dissolved phase constituents or interest
beyond theash basin compliance boundary at concentrations above the
respective 02L standards The eastern portion of the Marshall Steam Station site,.
between the Phase I Dry Ash Landfill and the unnamed tributary, is included in
the remedial design. The groundw.ater remedy in this: portion of the site is
comprised of a network of vertical groundwater extraction wells and clean water
inf ilt rationlrechat g v1ka.s.sociateci pumps, piping an.d ctintrol systems
It is: recommended Haat srouncitvati,r tome+, installed to address,- I Al
e \ceedance in the tributary be compatible with the Remedial Alternative design
in the CAP Update fin progress)
Accelerated implementation of portions. of the site -wide groundwater remeilial
design along the ea:stern side of ash basin, ,hetween the. unnamed tributaryird
the Dry Ash Landfill (Phase I) could also help address the discharge of
groundi,vater to the tributary with elevated concentratioris ot hardnes,s. Based on
the groundwater remedial 1t niate being proposed in the CAP Update, it is
estimated that 10 ex tr-action wells and 10 dean water innitrationfrecharge wells
wotrld be installed. Installation of all active groundwater extraction and
infiltration system should result in short-term affects to strirface water quality in
the tributary.
Before implementation of a groundwater remedy, additional field investigations
, aquifer pumping tests and groundwater/surface water interactions from
both banks of the Stream) S.hOuld be Rerformed to MtOrrit the design:
5,2 Long -Term
5.2,1 Ash Basin Decanting and Dewatering
Ash basin decanting a part of ash an (leisure, is is:Lit-tenth( !andel-wily and will
reduce the hydraulic:head near the topographic divide, located to the west of
that separates the basin from the stream: The reduction in hydraulic head in the
ash basin redirZe the hydraulic dritci„rig force for potential Cc„:).1 migration in
g 1'01,111d Water from the basin toward S--1.
5.2.2 Ash Basin Closure and Groundwater Corrective Action
As presented in Section 5.1 sil„ above„ as of the date of this report,. the basin
closure plan and groundwater corrective action p1an. have. not been submitted to

ment and E't,ii 1iit.lc:
sent EMC 5Oc WQ 5I 7-
Co rrect
nts
he
hove the respective
a
unnamedtributary, is
remedy in this portion o
groundwater extraa::tion
associated pumps, p p
It is recommended that any ground
e. ceedance in the tributary be
r th CAP Update (aril progress),
s.s;t.
A cot,
clesi
the tribur a.tic
would have a long -fern
cor!sti.tr,It to
ate to co
�I the ash bast
t beefa
prepared as
of dissolved
rt compliance boundary at
021, standards. The eastern portion ot the
e Phase I Dry Ash Landfill and the
design. `he a rc und%vater
network of vertical
at eata `rr r�har a r eits.
n.tenta.ti n u portions .yt
ae 'w sty to sash, basin,
d fill (Phase
installed to address IAL
Remedial Alternative
Based.of)

Hndings of Re-Assessinent and EvaIllation Rernedial Actions hider
Special Order by Consent. EC SOC WQ 7OuQ N Velll bet 20i
Du lQ Energy Carofirtas, LLC, Marshall Steam Station SynTeria
6.0 REMEDIAL EFFECTIVENESS MONITORING AND REPORTING
Following remedy selection and system startup„ monthly system ettctiveness updates
will he provided to NCDEQ.
Monitoring for e f fee ti v en es s would begin after system startup and. would potentially
include the volume of water collected and conveyed tor treatment, groundwater
elevation monitoring data and stream water finality data
If system performance is not actequate„ optimization of existing corn pone n t S and
utilization of additional methods woulid be considered., Modifications or additions to
treatment i,vould. be implernitmted and reported in a timely manner.
1

ldIng,3

*IN IVO. SA,
WO,. W.I....
.04.44 mkoaK,
40.
.065, 4,n4a. weveo"....
at,irrx

Sa`tts ids c s-e

R SaN4 SOCKS
ASF4
BASIN
WELL
Li " MVP E S EEP
"ASH ^^'y.' 'A22 L19 {PLIANd E 9(24222122222H
L4 aLy COMPUANCE
V 4Nr
SIPIE42224 SVE M KHA 22PE222)
t DUKE
ENERGY
CAROLINAS
22204
c
c.,AT , x,. t . ;r
OATS:,2 t.&0.2O.
rp.c,o m
FIGURE 1
S-1 RE -ASSESSMENT
AREA OF INVESTIGATION
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA

Technical Memorandum
Antchar QF,,A of J nth rciEna, Pi.,t,C;
231 Haywood Street
8,38 281 3330
To: Richard E Baker, Jr„ Duke Energy
From: Michael Gefell, PG, Anchor QEA, LLC
cc. Scott Davies and Matt Hanchey, Duke Energy
ANC- OR
OE
December 17, 2019
Re: Marshall Steam Station S-1 Hardness and Hydrologic Evaluation
At the request of Duke Energy, Anchor QEA, LLC, reviewed information pertaining to hydrology and
water hardness concentrations at Seep ID Number S -1 (S-1) at the Marshall Steam Station (MSS) in
Terrell, North Carolina and evaluated the potential influence of hydrologic conditions on measured
hardness at S-1, The S-1 sampling location is along a small intermittent stream that has measured
flow rates up to approximately 15 gallons per minute
This memorandum summarizes the results of Anchor QEA`s evaluation, specifically focused on three
questions that Duke Energy posed in an email dated November 22, 2019 (Baker 2019).
Did MSS Enter a Drought?
Anchor QEA downloaded drought severity data from the National Drought 'Mitigation Center's
tJ.S. Drought Monitor for the period coinciding with available 5-1 hardness data. the Drought Monitor
synthesizes data including precipitation, soil moisture, streamflow, and other drought indices and
classifies drought conditions in weekly intervals (NDMC et as 2019), The Drought Monitor's drought
severity index includes the following classiflca'tions,, with increasing drought intensity: No Drought
Conditions; Abnormally Dry; Moderate Drought, Severe Drought; Extreme Drought and Exceptional
Drought. During the periods shown in bright red and dark red in Figure 1, the Drought Monitor
classified the conditions in the MSS area as moderate and severe drought, respectively.
'-cwje _t
N L Tch etcat Memo+a.rd,, 20 123_t2„:, ,2:a,-x

December 17, 2019
Paget
The yellow periods were also abnormally dry but not classified as drought,
Did the Drought Cause or Contribute to the Increase in Hardness at S-1?
Figure 1 compares 5-1 hardness values to drought severity index. S-1 hardness data show seasonal
fluctuations with relative peaks in late summer to autumn, and relative lows in the late winter to
spring. During the period from October 2016 to April 2018, the S-1 seep was treated with limestone
to adjust pH, which may have increased 5-1 sample hardness values during the same period.
Four seasonal hardness data peaks have exceeded the S-1 hardness interim Action Level of
200 milligrams per liter (mg/L): 1) in 2014 during a period with no drought; 2) in 2016 during abnormally
dry conditions; 3) in 2017 with no drought and 4) in 2019 during moderate drought. The abnormally dry
period in 2016 and drought conditions in late 2019 may have contributed to the S-1 hardness peaks in
October 2016 and September 2019 However, the 2014 and 2017 data indicate that increases in
hardness at S-1 can also occur without drought conditions, as classified by the drought severity index,
The drought severity index accounts for a large amount of data that may be important for agronomic
purposes but may not be hydrologically relevant to surface water quality in the 5-1 stream.
Anchor QEA also evaluated historical daily precipitation data recorded at the MSS weather statiion.
Precipitation data for a range of periods were graphically compared to S-1 hardness trends, A
general inverse relationship was identified using a 6-week moving total precipitation, where each
precipitation data point indicates the total precipitation of the preceding 6-week period. All four
hardness peaks above the Interim Action Level occurred during or near times preceded by 6 weeks
ofrelatively low precipitation, The 6-week period is somewhat arbitrary, but suggests that sustained
periods of low precipitation likely cause elevated S-1 hardness, as expected based on fundamental
hydrologic principles.
Hardne- 9a"ite�
A Action le
ti
4

December 17, 20'1'9
During dry periods, stream hardness is dominated by minerals dissolved in discharging groundwater.
However, stream hardness can decrease significantly due to direct runoff from precipitation, which
has low hardness, Direct runoff includes overland flow and subsurface stormflow, and has relatively
low mineral content compared to groundwater (Freeze and Cherry 1979). The S-1 stream setting
should promote significant subsurface stormflow because of the following characteristics: 1) steep,
convex surrounding slopes; 2) a narrow valley bottom; 3) permeable soil; and 4) forested slopes with
leaf fitter (Freeze and Cherry 197'9), We interpret that direct runoff from precipitation would
significantly decrease S-1 stream hardness levels during extended rainy periods_ However, the
converse would also apply; in extended periods with little or no precipitation, subsurface stormflow
would abate and stream concentrations would increase to those that are dominated by discharging
groundwater concentrations. This relationship would produce an inverse relationship between
precipitation and 5-1 hardness, as generally observed in Figure 2, The inverse relationship between
S-1 hardness and 6--week running total precipitation also suggests the influence of another
mechanism with longer duration than direct runoff from individual storms.
Changes in relative groundwater recharge and discharge from either side of the strear r could' also
influence hardness at 5-1, Based on October 2019 groundwater analytical results, the average
groundwater hardness measurement southwest of the stream (approximately 270 mg/L at well
clusters AL-01 and MW-14) was higher than that measured northeast of the stream (approximately
150 mg/L at well cluster GWA-10). Using only the shallow monitoring well data,, the hardness
contrast is more significant: approximately 340 mg/L southwest of the stream versus 40 mg/L to the
northeast, Therefore, during periods of relatively high groundwater elevation on the southwest side
of the stream and relatively low groundwater elevation on the northeast side, as may occur in the
late summer or fall, the total groundwater contribution of hardness to S-1 would increase. A detailed
groundwater flow and transport evaluation could help clarify the relationship between relative
groundwater flow contributions from both sides of the stream to 5-1 hardness.
Has MSS Recovered from the Drought?
US Drought Monitor data indicate the following recent drou
+� October 15-22: severe drought
• October 29-November 12: moderate drought
• November 19. abnormally dry
• November 26: none
* December 3. none
• December 10: none
cond
ons at MSS (dates in 2f319):
Based on these data, MSS had recovered from the late 2019 drought as of November 19 or 26, 2019.
As shown in Figure 2, when the 6-week running total precipitation increased in late 2019, the S-1
hardness concentration dropped to below the interim Action Level.

December 17, 2019
Page 4
References
Baker, Richard E.,, Jr. (Duke Energy), 2019. Email regarding: Marshall S-1 _,. Request for Technical
Evaluation, November 22, 2019.
Freeze, R, A., and J A. Cherry, 19'79, Gr©undwoter. Englewood Cliffs, New Jersey: Prentice -Hall.
NDMC(National Drought Mitigation Center at the University of Nebraska -Lincoln), USDA (U,S.
Department of Agriculture), and NOAA (Nation& Oceanic and Atmospheric Administratio
2019, United States Drought Monitor open access data; historical data collected by state:
North Carolina, Accessed November 26, 2019,
Available at

DUKE
ENERGY,
Certtfled Mall: 701 0910 0001 0
Augu`ti
4'202
'\1s. Linda Culpepper, Director
North Carolina Department of E;n•xitcann
Division of, Water Resources
512 N. Salisbury Street
Raleigh, NC 27f 04
Duke Energy
\ICGOare \Ut:kaur SLIE i0c1
2700 Hager,. r5 terry Ft.a,asi
Hummo. le. N(,' 3s078
Subject: Duke. Energy Carc lincas 1_aLC /McGuire Nuc,.lear Sttrtion
Renewal ApplNPDES Permit No, NC 0024392
Part 1 Condition (A)(22) A Clean Water Act Section 316(b) Reports
Mecklenburg Count
Dear ls. Culpepper:
Duke Energy Ca- olinas E I_C' (Dtake E:net°
prepared this sunan1ary of the reports requited,
'NPDES Pcrnut tNo NO. 192 The reports
enable the Director to make a. Best °Tcchnolo`
et
pe
evatluat
iderin`, the ,site -specie
cement coin liaince preference is als(
the. A entrainment decisi
n oi. the yINS et
Nuclear Sta.atitan (1NS) has.
ted per the 31 ta(h) Rule and
,idc detailed information which should
Available (E3TA) entrainment
factors and other information, Although
presented in these repons„ final selection
n. 'I"he enclosed reports provide ow
eater intake structure with consideration of the facility9
source water -body, and potentially feasible compliance measures, Duke Energy
respectfully requests that the Director concur with our proposed irnpingerraent a
entrainment compliance t'neasures t.o ff.!�
Folio64I
review.
closed 3.
Extstira Facilit.y316(h) Rule Si.nni
isla 1:3TA at the MNS.
The C�`SEaE A. published the Clean Water Act 3 lfi(hp Rule for ex
cti�;e daatc�. of October 11, 2014. Although there are exception
requires that a NPDES permittee w th a cooltn# water intake structure (C
capacity of ` MCgD or greater to submit the followin reports based on the
(actual) flow;
<1�5 MGD-40CFR § li
>125 M.GD — 40 CFR § 122.2
NeW unit at an existing,
reports
reports
40CFR 122 2►(r)(2) (S) Band (14
DEQ DWR®s
h ,an
he Rule
design
`WlS average
rreports
Pag c Q 017

Main Intake Low Level Intake (LLI)
Nuclear safety related ("RN
system") service water.
(Note 1)
Invert Elevation (ft msl) 715
Depth (from full pond elevation)
(feet)
Depth of Water Withdrawal (ft
msl)
Structure linear length (feet) 247
Number of intake Bays 8 (4 per unit)
16 traveling water screens
(8 per unit)
3/8
1.2
8 (4 per unit)
254,000
2,969
2,631
644
116
654-670
118
3
9 fixed panel screens
3/4
0.06
4 (note 2 & 3)
17,500
43.2
27.0
Based on the NPDES Permit Director review of these reports, a site -specific entrainment
decision is made to establish BTA and then the permittee selects the appropriate
complementary impingement compliance alternative(s).
The MNS CWIS ("Main Intake") has a design capacity greater than 2 MGD and an
average intake flow of greater than 125 MGD. Therefore the 40 CFR § 122.21(r)(2)-(13)
reports are enclosed with this submittal.
MNS Coolin;Water Intake Structure Summary
The MNS consists of two identical pressurized water nuclear reactors, each with a net
electrical generation of approximately 1,158 MW. Unit I began commercial operation
during 1981 with Unit 2 following in 1984. The MNS carbon free generation is critical
for meeting Duke Energy customer needs.
MNS has two separate CWIS to provide cooling water for various plant purposes,
including the steam turbine condensers and nuclear safety -related systems. The Main
Intake is a shoreline structure located in a small cove near Cowans Ford Dam on Lake
Norman. The Main Intake bay center is approximately 30 feet below the Iake pool
elevation. The Low Level Intake (LLI) is located near the base of Cowans Ford Dam and
withdraws water from Lake Norman with the center of the structure approximately 100
feet below the pool elevation. Sections 2, 3, and 5 of the enclosed reports provide a
comprehensive description of the MNS CWIS. The following table provides a summary
of the major characteristics for each CWIS:
Purpose
Once -through cooling water
and other plant requirements
Number of Screens and Type
Screen Mesh (inches)
Through -screen velocity (fps)
Number of Pumps
Pump Rating (gpm)
Total Design Flow (MGD)
Average Flow (MGD)
Note I: LLI is also the routine makeup water source to the safety -related Standby Nuclear Service
Water Pond.
45
715-745
Page 2of7

}
Note 2: There are four RN pumps with 17.500 gpm capacity each: however only two are typically
operated with two for redundancy.
Note 3: There are also 3 pumps with 150.000 glim capacity each with one or two pumps operating
intermittently for once to five weeks per year as dictated by plant operations for MNS thermal
discharge limitation compliance.
The area of influence (AOI) for impingement is defined as the area encompassed by the
0.5 fps velocity contour at the intake structure. For the Main Intake, using the theoretical
design flow of 2,969 MGD and the Lake Norman authorized maximum (non -emergency)
drawdown water elevation of 751 ft msl (which is nine feet below normal pool elevation
of 760 ft msl), the estimated AOI extends 80 feet from the CWIS and encompasses an
area of 0.68 acres. Section 2.3 of the report provides information used to conservatively
estimate the AOI.
CWIS Source Water Summary
The MNS source waterbody, Lake Norman, was expressly created to provide cooling
water for electrical generation facilities including MNS and to power generators at the
Cowans Ford Hydroelectric Station. As part of the Catawba-Wateree Hydroelectric
Project (FERC No. 2232), Lake Norman is subject to licensing by the Federal Energy
Regulatory Commission (FERC). Lake Norman is an impoundment on the mainstem
Catawba River and is bracketed upstream by Lookout Shoals Lake and downstream by
Mountain Island Lake.
Lake Norman is characterized as an "inland sea" with 538 miles of shoreline, a surface
area of more than 32,475 acres, and an impounded volume of nearly 1,100,000 acre-feet.
Lake Norman supports a balanced fishery, provides recreational opportunities, and is
aesthetically desirable. Water quality, including fishery information, is well documented
at Lake Norman. Routine source waterbody assessments have occurred prior to and after
MNS operations and currently continue. The Lake Norman fishery studies have included
electrofishing, purseseine sampling, hydroacoustic surveys, and creel surveys. None of
these studies have attributed any adverse impact to operation of MNS including the
cooling water intake structure.
The North Carolina Wildlife Resources Commission (NCWRC) manages Lake Norman
through periodic fish stocking programs and assessments. The Lake Norman fish
population is diverse and many species were artificially introduced by the NCWRC
and/or the public. An established forage fishery exists to support important recreational
sportfishing species such as catfish black bass, and temperate bass. Much of the forage
base consists of shad and alewife, which are considered by the Rule to be a fragile
species.
As presented in Sections 2, 4, 7, 9, and 11 of the enclosed reports, there are no threatened
or endangered species that could be impacted by the MNS CWIS. Two years of
impingement and entrainment field data was collected at the Main Intake with discrete
24-hour samples occurring at one week intervals for impingement and two week intervals
for entrainment. The following tables provides a summary of these two sampling efforts:
Page 3 of 7

MNS Main Intake Impingement
2016 Flows — Estimated
Annual impingement
2017 Flows — 2016-2017 Average
Estimated Annual Estimated Annual
Impingement Impingement (Note 1)
Threadfin Shad 890 886 888
Alewife 336 313 324
Gizzard Shad 56 53 54
Bluegill 143 138 140
White Bass 77 75 76
Striped Bass 77 72 74
Channel Catfish 63 60 62
Unidentified Fish 54 54 54
Others 479 462 470
Total Fragile 1,295 1,263 1,279
Total Non -Fragile 880 850 865
Note 1 — Average annual impingement represents simple arithmetic average between 2016 and 2017.
MNS Main Intake Entrainment
2016 Flows —Estimated 2017 Flows — 2016-2017 Average
Annual Entrainment Estimated Annual Estimated Annual
Entrainment Entrainment (Note 1)
Shad and Herring Family 114,497,612 299,678,462 207,088,037
Shad Species 69,574,216 3,985,796 36,780,006
Sunfish Species 10,141,792 2,363,843 6,252,818
White Perch 7,836,624 61,829,106 34,832,865
Unidentified Fish 6,620,757 948,137 3,784,447
Alewife 4,445,066 3,169,191 3,807,128
Gizzard Shad 3,826,455 683,839 2,255,147
Threadfin Shad 1,998,006 999,003
Others (Note 2) 5,453,780 2,063,051 3,758,416
Total Fragile 194,341,355 307,517,288 250,929,322
Total Non -Fragile 30,052,953 67,204,137 48,628,545
Note 1 — Average annual entrainment represents simple arithmetic average. between 2016 and 2017.
Note 2 — The anomalous collection of Inland Silverside in 2016.is not included in the 2016 data presented.
Fragile species comprised approximately 60% of the estimated impingement and 84% of
the estimated entrainment at the MNS Main Intake. Section 11 of the enclosed report
presents an evaluation of the entrainment impacts using models such as Equivalent
Adults (EA) and Production Foregone (PF) which account for the natural survival of each
organism, trophic transfer, and its potential to become an adult that could be of benefit to
the Lake Norman aquatic system or provide a recreational opportunity. Based on the EA
and PF modeling, the monetary value of the MNS entrainment on an annual basis ranges
from $818 to $24,168.
Page 4 of 7

1ipinementand Entrainment. Compliance
The 316(b) Rule requires the hypothetical evaluation of a closed -cooling and fine mesh
screen retrofit. The closed cycle cooling retrofit was evaluated using mechanical draft
cooling towers (MCDT), The fine t-inesh screen retrofit was evaluated using 2.0 mm .fine
mesh. "fish friendly- traveling screens (FMS). Section 10 of the enclosed report provides
the engineering evaluation, including costs, for the MCDT and FMS scenarios, It should
he noted that a closed cycle cooling retrofit at an existing facility presents many
challenges which.may not he fully defined, in the presented evaluation. Although tine
mesh screens are less chaliengin,g to retrofit, there could be unforeseen issues that are not
incorporated in the presented evaluation.
Sections 11 and 12 of the report presents the benefits, and costs of each technology,
including. the .currently configured CWIS, Conversion to closed cycle cooling at
McGuire WOU Id result in the loss of v iter fishing opportunities and commensurate local
economic impacts at Lake Norman. The following table (Table 11-17 in the report) and
figure (Figure I-11 in the report) summarizes the net benefits of each evaluated
technology:
impingem r
Impingement
and
Entrainment
...............................................................„„„„„„„„ ..........
De Minimis $457
2,0-mm FMS $51 2M
Closed -Cycle
$IAM
Retrofit
Note: "Nl-
$0
$0 $0 -$457
$457 $0 5M $0 5M -$50 7M
$, 97 $0 3M $0 3M -$147B
Page 5 47

Total Social Costs and
Benefits(S)
s 5.00t,i
impingement
Compliance
Option
ce 9rn r
§125.9.4w,'11Y
Net Benefits (5)
ro fits ttainus Costs)
Bore t
IEntlreinntera Compliance Alternatives
The -Total Sociaa `aa:s( in the aabo e table a.,
between the costs and benefits is negative for each potential scenari
existing McGuire CVVIS configuration ("De Mrnimir") has a markedly srnaafler in pate
than the other two tec.hnoli r=ies. The 3I6(b) Rule at 40 CFR 125.98(0(=) states that the
Director can determine that no additional controls are necessary beyond the currently
installed technologies and implemented measures where costs are substantially
disproportionate and do not justify the social benefits or result in unacceptable adverse
impacts that cannot be mitigated, This is exactly the case for the MNS C\'IS, and
therefore Duke Energy respectfully requests the Department concur with our analysis that
no additional controls ;arc:, reaestablish BTA With consideration of the follow
S5'1 �2wY
50.54
2.0-mm Fine -Mast,
Screens
St.47B
Mecha.r:caii Draft
+ ili er
fake Norn at is a rraanaged waterbody
MNS has no impact on arny threatened or endangered species
6 of7

Impingement rates are very lo (many days would likely have no reasonably
anticipated impingement)
• Entrainment is mostly associated with prolific, reproducing forage fish considered
by the EPA to be fragile species
• The costs to install any technology are wholly disproportionate to any benefit
• Numerous prior studies have confirmed that the MNS CWIS has no impact on the
Lake Norman aquatic community
The estimated S1,850,000,000 compliance cost for a MDCT retrofit results in an
approximate 75„000:1 cost to benefit ratio, MDCT and EMS are unjustified based on il
above factors and therefore the existing CWIS should be considered as BTA per the
316(b) Rule,
Duke Energy will be contacting NC DEQ DWR staff in the near future to request a
meeting to provide an overview of these documents, Should you have any questions
concerning this 3 1.6(b) submittal in the interim, please contact Mr, John Ballard, .MNS
Site Environmental :Field Support, by phone at 704-875-5227, or via e-mail at
John,Ballard@duke-energy,com, Specific 3 16(b) technical aspects can be addressed by
Mr. Michael Smallwood at 704-875-5227 or via email at \I1 1.$01.allwood 1uk
griel:0:',ec. 411,
i certify, under penalty of law, that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that -
qualified personnel properly gather and evaluate the information submitted. Based on
my inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information,. the information submitted is, to the best of my
knowledge and belief, true, accurate, and cornplete 1 am aware that there ore significant
penalties for submitting false information, including the possibility of fines and imprisonment
for knowing violations.
Sincerely,
Thomas .D, Ray
Site Vice President
Duke Energy Carolinas LLC
kle,Guire Nuclear Station
Enclosures
cc: M. Julie Grzyb, NPDES Complex Permitting Unit
Mr, Corey Basinger, Mooresville Regional Office
Mr, John Ballard, Duke Energy MNS Site Environmental Field Support
Mr, Don Safrit, Duke Energy Carolinas Permitting & Compliance
Page 7 cwf 7

'AL, OFFICE
1100
October 15, 2019
Mr. Jeff Poupart
North Carona Department of Environmental Quality
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Marshall Stearn Station
NPDES Permit NC0004987
Request for minor NPDES permit rrwadification
Closing of ©utfall 004
Dear Mr. Poupart:
The Flue Gas Desulfurization (FGU) at the subject facility system ceased discharging into the
FGD constructed wetland treatment system (CWTS NPDES internal outfall 004) in April 2019E
In March 2019 the new FGD wastewater treatment system (WWTS - internal outfall 006) went
into operation replacing the CWTS. Some flows continued to discharge and were monitored
from outfall 004 as activities in preparation for final closure occurred from April into September.
These activities included removal of gypsum from the initial equalization settling basins and the
removal of mushroom compost from the vertical flow wetland cells. Qutfall 004 was
permanently grouted shut on October 11, 2019, A minor NPDES permit modification is
therefore requested to rernove outfall 004 from NPDES permit NC0004987. Enclosed is a
check for $260 in order to process the minor modification request.
The rainfall runoff from the area of the retired CWTS drains into the ash basin and discharges
out NPDES outfall 002. The CWTS was originally built in a pennisula area within the ash basin
and was an integral part of the WWTS, The final cells are within the ash basin compliance
boundary, Thus Duke Energy considers the footprint of the CWTS to be part of the ash basin
and final closure of the CWTS is planned to be implemented as determined by the final
approved ash basin closure plans. In the interim the final cells of the CWTS have been
breached to allow for storm water to be managed within the ash basin and discharge via
NPDES outfali 002,
If you have questions please contact Robert Wylie at [phone],
Sin
Rick Roper, General Manager Ill
Marshall Steam Station
cc: Wes Bell w DEQ Mooresville Office
Enclosure: Check for Minor Modification Fee

E OnOv OUS E ti Of4VICE c L
d00 tatOli 1U:k EFT
CC COUICC5 pA,KARLE - Scl-P•ill
COMO._ CPC TE.„
900002 R3 K1 ,SD A
NORTH CAROL iN,4 OFPAR'InENOIV T
ENVIRONMENTAL Du,4 [BY
CF WATER RESOURCES
1611 MAIL SERV cr
RALEIGH NC -1 /599
Involice. role Invoice
19/0Y/2919 t4( 09049 ai
LEETA,CH BEEORE DEPOSITING CHECK
SHADED AREA MUST GI-4AtnEM
ukigE EeERGY tAttsltl..st; SEttvECES C
.44,cso. TOcCalt STREET
ACCOUNTS PAY E
CHAR", CUTE; WC 2 aEL..
DUKE
ENERGY,
Remittance Advice
Pay Exacliy Two Hundred Sixty and 00/100 -US Dollars —
`'T EHE
ORDER
OFE
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENTAL QUALITY
,.EP MORGACH,ASE3ANK, N.A.
YRACUSE, NY 1320.6
Date: 10/08/2019
Check #: 1„000178947
Payment Amount: 2.60 00
Vendor # 0900071949
RECOVED A.:A:NR/OVIOR
'1.
WOROS
MOORES ViLLE Firi8lONAL OFFICE
Voucher ID v oic Gror4. Amt Discount Amount ; Irrtvoce Net Amp
0.00
DUKE
E ERGY,
AT BO
sc,213
Date: 10/08/2019
Check #: 1000178947
Amount
rm-260 00
D AFTER RAYS

rpiusShip - United States Page 1 of 1
UPS CampusShip: ViewlPrint Label
1. Ensure there are no other shipping or tracking labels attached to your package. Select the Print button on the
print dialog thatbox appears. Note: if your browser does not support this function select Print from the File menu to
print the label.
2. Fold the printed label at the solid fine below. Place the label in a UPS Shipping Pouch. If you do not have a pouch.
affix the folded label using clear plastic shipping tape over the entire label.
3. GETTING YOUR SHIPMENT TO UPS
Customers with a Daily Pickup
Your driver will pickup your shlpment(s) as usual.
Customers withouta Daily Pickup
Take your package to any location of The UPS Store, UPS Access Point(TM) location, UPS Drop Box, UPS
Customer Center, Staples® or Authorized Shipping Outlet near you. Items sent via UPS Return Services(SM)
(including via Ground) are also accepted at Drop Boxes. To find the location nearest you, please visit the Resources
area of CampusShip and select UPS Locations.
Schedule a same day or future day Pickup to have a UPS driver pickup all your CampusShip packages.
Hand the package to any UPS driver in your area.
UPS Access Paint*.
MICHAELS STORE M 3710
590 RIVER H WY
MOORESVILLE ,NC 28117
FOLD HERE
UPS Access Poi 1
THE UPS STORE
51643 RIVER HWY
MOORESVILLE ,NC 25117
1-4
fs1
O1-1
0
1
4.4
UPS Access Point*.
THE UPS STORE
19701 BETHEL CHURCH RO
CORNELIUS ,NC 28031
0'
rn
0
c�v
rn
0
0
00
o
VD0
BILLING: P/P
Eir(_]
827
1 D'6
.
V
vr
Er-
e11
>v �
0c
a
ac
https://www.campusship.ups.com/cship/create?ActionOriginPair=default PrintWindo... 10/15/2019

UPS ACCMS
uPS ORE
7oroNER25,11
tit."tr
UPS Chop pox, UPS
UPS Acc:e$s
THE UPS STCRC
UPS Ca psShip: View/Print Label
Ens ure there are r,o other shipping or tr,.trkitarp labels attached tra ytrur paa kage,. Seiect the Print be itor, oft the
print t±id'=cg box ttla aippears, Note: It your browse( duels. riot support this' tuncis=on ae•iei:.t Print from the Fite menu t
print the Labe€.
Surd. the pr it i b bel at the solid limn below, Place lhc iabel en to UP; Shipping Pooch if you do nol have a roucch
a33ix tt t feel Eatst:d e.rsuh cierar plritilrc shipping tape: over the erttrr
3 GETTWNCG YOUR SHPME14T TO UPS
Customers with a gaily Pickup
Your driver wwiii pickup your shipmrrit(s) as Li5uat
Customers without a Daily Pickup
Take your package: to any loci rbon of The UPS Stare"-, UPta A . es,s Pain
in
Cl ist(. m +r Center.. Stapios..i or Authorize:1 ;hipping 0 lief near you, items sent xia tit="r,S i u tc,rr Ser i ,r L1M;,
(including via Ground) are : s»accepted at Drop Boxes ,'To find the location nearest you pie -
area of CanpusShrp and seer( UPS Locations
Schedule a same Gay or future day Pickup ckup to have a UPS S driver pickup ail your C om,pe,:;Shrp packages
Hind the package to any UPS Orrver in your area
jps Access Poor.
*JrEs;•�ritrr Sri"`€ORE „riu
eireix
FOLD HERE.
0.4

DUKE
ENE
July 3, 2019
NC Department of Environrnental Quality
Division of Water Resources - WO Perrn tting Sr ction NPDES
Attn: Sergei Chernikov, Pht .
1617 Mail Service Center
F Leigh, NC 27699.1617
Subject: EPA Form 2C mm Duffel l 005
NPDES Permit Number NC9994957
Duke Energy Carolinas,, LLC - Marshall Steam Station
Catawba County
With reference to Part A. (9) of NPDES permit NC( 90t4997, attacl r d is the completed EPA
Form 2C tor Qutfalt 005,
Should you have any guesti ns regarding this submit
contact Robert Wylie at 704 382-4669,
0
'eguire additional inorrnaton, please
l certify, under penalty of Paw, that this document and all attachments were prepared under my
direction or supervision in accordance with a system design to assure that qualified personnel
properly gather and evaluate the irtforr,atfon submitted. Based Ova my ingctiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the inform_ tion .submitted is, t the best of my knowledge and belief, tn.e. accurate,
and complete. 1 am aware there are significant penalties for submitting false i`rtformation,
inclerding the possibility of fines and imprisonment for knowing violations,
Rick Roper
General Manager lli, a °shalt Steam Station
Fossil/Hydro Qperatio ; Carolinas Coal Generation
Attachment: EPA Form 2C - Outfall 005
cc: Wes Bell - NCDEQ Mooresville

be: Scott La Sala (Marshall)
Robert Wylie (P&C)
UPS Tracking; Sergei Cheri kov Raleagl) — 1Z8955;XXO397932779
Wes Bell (MRO)
-a 1Z8955X4O395553389

TEATS LCd ATI
EXISTING MA
Fans AL)
OMR No
m �.'FI SvaVx
U S ENVIRONMENTAL PROT'E.C1"pprq AGENCY
.%Y
APPLICATION ETION FOR PERMIT TO DISCHARGE WA '"EWATER
ACTTURING, COMMERCIAL, aIININDG AND SILVICULTURE OP
CorL4d/idated Rem Prpgfee
T@"I'uD ICT4 TIUDE
MN( des
to Y r#T is is as xCIE `IM t s, rn a3
Ir ITS x IC. ( Is' FLY4� an kI't 6:e Yt .¢ fib. s
ATIONS
p,EcEtS++Ipi<3 4V+'kTER (sxr`aJa,
WaSTILINISTINI
4.d3-=, -Liter Continue on
2 OP RAOStem b GONTRIELITING FLOW
<,
b AVERAGE
4 TREATMENT
'CONT+NIAI ON REVERSE

chhx`f f.T)G3 tTr,i,a F
A Does tot
A,rr y"A'iOu
fet trnent
pm
ft,Aor,
by EPA under Section : St4 of fl Ce 3a Act apOy to your frta;,t>.ty t
)
(12ENIASASAT2ON OF CONDINOrE 2 A F"ECrE'D OLPFALLS
AGREEMENT, FTC
OPTIONAL,' E^ May arasr
tbschlopes tow Save anderws - or a
Q FAARK 'y, * :aESC
EPA Form 361ta 2 t`y410,+ PAGE
A t F AI 2)at 1tJ�VI t.C;NTF{;NE, E=RO
4
8.9, EE DESCR4PTION 0,F PNOJEC-
a
F�:•>a,� erbdfs,azrpaia)
4 EtE'A. COMPLIANCE °ATE
aOty sift.ct tau
E ra aisiRL%t 1
c r,+'T bolE ON pAci

AK E ANL1E 'LUEta°T ap PAC" aa Ra
A. Sept t,T�;; �At a Tr�reaaaa ., A at
NT: T yr E a r�� t�ta s:t't e r� c tot t ratty r
T abve 2rw:< fr d #t 4rsaRm cwe: t, a ti aar t t ssc t ei Ti p
ANT
TWA R t ANALYSIS
EPA "'omt 5-10-2t:,,, vt
PAGE 3 of 4
PCTLP„LP'aANT
a SOURCE
CONTINUE ON REVERSE'

(% N'E`(NUO FROM 'I'P1F; F FTONT
giOLa' G ",At "Ss3XCGTv' TE VOW DATA
,son tsab'tievetintgin.
A NAME
At.'TITLE (Ape (4,444E

PLEASE PRINT OR TYl-f= IN THE UNSHADED AREAS* ONLY, You may rc ,prrn some, or* € [
this information on separate sheOs (u=e the same, forov,/P rtstead of r,orrOetirau thew pages,
SFE PNSTRUCTI .JNS
NT AK ,AND EFFLUENT CHARACTEgLSTICS fr„ tina rf 3 r pac w:^; of Fr,tnaa 2 €;.)
ART A You must provide the r suPt of M West one ana
SLLL&TAN
D CAS NO
dPt[VMWC DAIL- VA L UE A
N`t
DAY VALUE s O.ONG TERM AVID, VAl,.l E
EPA ILA, NUk9F3FR (copy trorn Item 1 of Pao
t arch ouffuH, S6,art
i WAiPst,4 `
a ra waa r lar¢gt;`* 4. Vtara ° X" it rc tgTttt ?b tnr kWh POP
Yurart fi tle"' at; catg�#ir trtt t prasf� th a r %ffs rt f t 4t>
xt r a fi rr c3 4P? tiu t r ssh . kh OI,I! 4t c.hOrg t i t tP 11e onc, tat
7

O
1,,PO,LJ
ND L',AS
-7440-41
BYE
7,133. x.4.5„6)
AiA1Lkt At . VALE. E % A
57121,4
41,2
1.0
2.13
1.0
10312
4,1
4.80,2
Gil(' 04
A4 .AE�+ ° . LC?NC 'TER VG. VAt,JFL
rnrii
Vaay

v "•t` 1E,9rrltY as- trsr tat$ •LPt,h C`aC.yt tlr lrad a ry tan fC)t ryR„l. f4";�rct rtir'tL&1"i r,",Sa3i"lttlra at8d iota # yx9t Ftct1*i< 6,1 `itr4,G tarn xu t xwxsazx rsaasa
rroriprrsrc; s4 wa, stetr 5t6c oriliallssi a t r1r rlto nrtt't l 1 6f r Pra t6R as,6, a w rft 3n 3 i Iu S -f t r tmc pt f6u'1t ht y 6 is know or have 444n„,pis to Cel xFx" i, r * sst t N t `X' 'in coiu ren . f .r i G .zt
ttathrl you behove i5 abseii.. 11 vri u rs`i' ail fat 6rw Wilton ,DU fa ur6 I'"+t'i�9ttckr tt 6 rr nits t'R u1 t' ; t 'nrr Sd'1z`dys tu; r 1t°`at °"aGlulrap7t., 0'g+': a rB'ar'rr t.`r 6itmn 201r"+3"rrn pcilu66M, �p"Caaa
roust provide the res:uftts o1 at least one r aitysis f r tlist pollutran0 if you Know e'tr na,. r, roosian to tvii11 it pub or re alke l u tzt r1 r1t rr it,srt n > da t y D
ttcroteln, atuylonttnter, 2, 4 dnuirophenol: a`rr ?-tri by*I 4 6 rda`nflrophenol, you most provide the results o1 t 1 st one anaNsrs tot ouch ref these po6@a 9 L+ts thigh you F: o it tt rtw r r t n tr
E ?da ,r 9firai yr at discharge an cc+nck nlrtatk rrs rO 100 py b or granter. Othtrrw e. toy p0IPuf hls tor which you r a;78ratth. 2b, Ycaui mar rithtr a 01Nr 6t .al leac,4 one analyst or bsipiyr 6,r ybtztx= the
rx'c;"x.-srx rt ew^.4ts. a an xt..m...a:.F
i, 7 pages to thus part; please. review each care:tufty. F otrtpDrrr NV lrablc tail 7 pages) artt each oullettl : ata r idsrii
i A MY a3s a a. 'r
xarrrttrr: rn.:rq !,xn,ra
+rt
At, , t t'A pft AN TO A
44)
VAL
ANALYSE `s name.
Ir t4 to %tN s it
Nty t n 1`6twfi A t%a. VAL
4
ANAt

NTINU
«POLLUTANT
ND CAS NO,
,_
FRACTQN.v G
y
A
NC0 0498
YS
w Mass

vLITAN
Ca AS NC),
'IA. P,Mitootwor7
?F �AFtW, °'h"
`84 ',6,m1
t MAX4v75 d' AIL'u" VAL&.tk
Tsc" kC° VOLATftE UN
NC0004 r 0
A:' a"AL ttE ., R °NCI TERM A.
d OP
t iG Nl"`Ak E !
LONE 7" ; w Vb A
'Rog rotr

a 48 �` vsc . rrr�atitA
AC;T€ON Aa NUT AL 0MaoOS
0,03
NCOO
4VALLJ i�; N iv T RM AVG, A
AxDav
qtAtAnv
mrant
A

C?NNNUED FR£`3 PA E V-6
OLWTAN"f' 2. BARK a"X
ND GAS NO,
V91aow'
FSAT?F#.M9 w L AN
10110400
a e:
ofuend f4 1-14- I,
Ngumene
AX 43U $ A6L'4° VA
0,t?`:s"
0.02
0,19
NC0004 7 005,
V_AL.LF , LONC TE § ,r AV , V ALI)
a1h ALY EO
mar
L46
N�.5 NTAKEE�al
VA
tlaZINZ

AC,
r ,APyB
CAS NO,
AIC,r AIIMi aza„� $ hJS a r PVALUE
FRA ,,. I )N A S/NEL/ A MPO r
!h•t?ay
IN A,c ��:pli yra C�
O'FERM AVG. 'v, r.

Lake
Noonan
it) Fan Cont101 House
Non -contact Cooling
Water
iritake .Screen Backwash
4
err
Flue Gas Destalfurizet ion (FGD
I —Tar,
Wet Scrubber WasteWater
Projected Future Marshall Steam Station Flow Diagram
NPDES Permit #NC0004987
vnt,,,,,a.000,4003-1 Catawba County
0,2mGo
Submerged Fag h.T risramor
Grata MGD
FGD Wastewater Treatment Sv.stern
(PhysiChern & Bird
Heat Exit hanger Cooling Water
Air P ire heet.er VVDter, Precipitator & Boller Wo.sti Waters, Misr.
Cleaning Westewaters
Raw VVeter
Treatment
(Misr, Eon (omen( Cooling
Bolter and Tor bline Room
Sumps
T,ra
Oncre-through Cooling Water
r 15 t Ut5ttrti Wet larld5
outtaii 001 Lake
103 rGDN *ma
Dente Stk.': Viteste.wator Sanitary
((sternal ()atoll (Xlitt
0,8 MGD
Fly a„sh Sc &milt
0.53 MG —--
MGD
Storrowater
4T 4,
1.9 Yard Drain Sumps
MGD (2 flows To 1A)
Stormwater Holding Bain
Leachatv
— 0,04 MGD
.„. Alternate
Route
2.4
MGD
Retention Bain
internal Outtall
Mire
Storm Watet
As h) (Q7.1q ri
Ou Dells 002A and ta12E)
Yard .Su cur) Overflow
no flow respecter:1:i
4o-?il0'401102 5M,5, 545555,555,
r-555555505.-5."-^5'55455".÷ 054000 '505 55.555-5› 00(0 N050515,0
ate -fall 002
1.0 MG D
Retention Betels Overflow
fro flour expected)
Grattail OOFT
MGD
Lake
Norther,
Lake
Islornion
Lake
Simla -ago

Marshall Steam Station
8320 East NC Hwy 150
Terrel8, N(, 28682
.828.-178,7 00
June 27, 2019
Mr, Wes Bell
Department of Environmental Quality
State of North Carolina
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Dr, Sergei Chemikov
Water Permitting Section
Division of Water Resources
Department of Environmental Quality
State of North Carolina
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Marshall Steam Station
NPDES Permit NC0004987
Notification for Start of Decanting and Construction of
Temporary Waste Water Treatment System
With reference to the subject NPDES permit, the start of decanting is scheduled to
begin with the removal of stop logs from the ash basin discharge structure the week of
July 8, 2019. This will allow the ash basin water to be initially removed by gravity. To
lower the ash basin water level further, a pumping operation will be implemented. It is
planned that a pumping system and temporary wastewater treatment system will be
installed and begin operation in August 2019.
If have questions or need additional information please contact Robert Wylie at (704
382-4669,
Rick Roper
Marshall Steam Station, Station Manager
General Manager III
FHO- Carolinas Coal

'tEC .VE[)1Nt*DFNRs.Wk
WO ROS
MOf1FsESV1t l k. R YI NAkw or-oc.`r :.
bc: w/attachment J.S. La Sala — Marshall
Record Type Code: ENV-50-02
Document Number: 8-6
UPS Tracking: Wes Bell (MR0) - 1Z8955X40391231644
Sergee Chernikov (Raleigh) - 1Z8955X40393117050
Marshall Steam Station
Duke Energy
8320 E. Hwy 150
Terrell, NC 286E32
828 478-7820

V
'it. Jeff Pr upatt.
NC DWR Permitti
1617 Mail Service
Raleigh, NC 27699-1617
Cl1f(C)57
hdr Count
zind strhnait EPA For
sch rge.
here are any questit ns about th
Rick Roper
General 14Tt
Marshall Steam Station Pig'
Generation Carolinas \Vest
Statit}
Maria(-r
nponent ,startup
Section
Duke Energy
Marshal Steam Station
8320 East N( Hwy 150
L` t.
ges
s dependent on E)din Sd!
As required, Duke Energy
Kt) days of the commencement of the
n, please c«rtt ac.t ,Brad Loveland at (I()=1^f 373-282.()

,prENERGY
cc: Wes Bell - DEQ Mooresville Regional
Brad Loveland/Filenet - via email
Scott LaSala
UPS Tracking: DEQ Raleigh- 1Z8955X40398872627
DEQ Mooresville - 1Z8955X40398298230
Annual Certification
Non-Stornnrater Discharges Page 2

DUKE
• ',P14# EERGY,
tsso,,Rost?iiso,s
November 28, 2018
Attn: Jeff Poupart
Division. of Environmental Quality
Division of Water Resources
1617 Mail Service Ce, ter
Raleigh, NC 27699-1611
riEcco,froiNeclemnin
vvoROS
MOORESVILLE REGIONAL OFFIICrI
Subject: 90 Day Closure Notification for Wastewater Treatment Unit
Duke Energy Carolinas, LLC.,
Marshall Steam Station (NC0,004987) - Catawba County
Dear Mr., Poupart,
Duke Eneegy
52fi, 'South Church Street
Chariot:re: NC 28202
Maihni Address'
E.: G I 3K P.O. Box 100f3
Charlotte.. Nth 28.201- 1006
In accordance with the requirements of Part Section D of the NPDES Wastewater permit
NC0004987, Duke Energy Carolinas, LLC (DEC) is hereby providing notice of closure for wastewater
treatment components at Marshall Steam Station in Catawba County, NC„ As part of a Water
Fie -route project being undertaken to assure compliance with the North Carolina
Coal Ash Management Act (CAMA) and the federal Coal Combustion Residual (CCR)
rule for this facility, DEC will be starting the closure process for the Constructed Wetlands
(and Internal Outten 004) by end of February 2019, The ongoing flows from FGD will be
redirected to the newly permitted FGD WWTP (internal outfall 006).
More details regarding final removal of the Constructed Wetlands will be communicated via
email once plans are finalized,
Please accept this letter as meeting the permit requirement to provide 90 day notice, of
closure for a wastewater treatment system. If you have any questions regarding the closure
of these treat ent u its, please contact Brad Loveland at 704-373-2820, or via e lea at
Bradioveland@Duke-Ener ,com,
"I certify, under penalty of law, that this document and all attachments were prepared under my direction
or supervision in accordance with a system designed to .assure that qualified personnel properly gather
and evaluate the information submitted, Based on my inquiry of the person or persons who manage the
system or those persons directly responsible for gathering the information, the information submitted is,
to the best of my knowledge and belief, true, accurate, and complete I am aware that there are significant
penalties for submitting .false information, including the possibility of fines and ir»prisonment for knowing
violations.'"
Rick. Roper
General Manager Hi
Marshall Steam Station

CC:
Shannon Lang
Wes Bell (NCR Q)
k g: Jeff Poupart ( EQ-DWR 1Z 955X40399639575
Wes Be (Mooresville) - 1Z8955X4O396100188

DUKE
ENER
November 28, 2018
Dr. Sergei Chernikov, PhD
Division of Environ iental Quality
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: NPDES Permit Application
Wastewater Treatment Additive update
Marshall Steam Station
NPDES Permit NC0004987
Catawba County
Dear Dr. Chernikov,
Marshatt Steam Station
Doke Energy
8320 F. Hwy 150
Terron„ NC 28682
828 47822820
.t:ITECEPJ ENRIDWR
MOORESVO 188188.13NAL. OFFtCe
In a submittal to NCDEQ dated August 22, 2017, Duke Energy updated it's NPDES
permit application including a list of chemicals that were to be used as part of Marshall
Steam Station Hazardous and 'Toxic Substances List. Below is a summary and
reasoning for this updated lists submittal.
Sodium Hydroxide (Caustic Soda) — The previously submitted table 5,1 lists "'Caustic
Acid" which was a typo, and should have been listed as "Caustic Soda". This chemical
will be used in the new FGD WWTS, for pH adjustment in the Submerged Flight
Conveyors (SFCs), and for pH adjustment at the Retention and Holding Basins.
Sodium Carbonate (Soda Ash) — This will be used for pH adjustment in the Submerged
Flight Conveyors (SFCs),
Included in the submittal are the 'following:
Updated Marshall Steam Station Hazardous and Toxic Substa ees Table
The SDS sheets for Sodium Hydroxide and Sodium Carbonate,
vv‘v -c nergy cum

Duke Energy does not anticipate or requests modification to the permit as a result of
this submittal but is providing this update to assure the NPDES permit application is up
to date,
If y u have questions or need additional information please contact Brad Loveland at
[phone] or brad,toveland@duke-energy. corn,
d t certify, under penalty t " tha
accordance with a system des
Based an my inquiry of the person
information —the information .sutrrrls"tted is,
there ;are ,sr'graiik,a.rat penaqtes tor . ut rutr+r
Yours truly,
14,
Rick Roper
General Manager ID
Marshall Steam Station
FHO- Carolinas Coat
attachments

CC:
Atarshati Steam Station
Duke Energy
S120 E. Hwy 160
'OrretO NC 28682
828 418-7820
Brad Loveland/FileNet, EHS CCP
Scott LaSala
Wes Bell (NCDEQ)
Record Type Code: ENV-50-02
Document Number 8-6
UPS Tracking:
Dr, Sergei Chernikov (DEQ-DWR)-1Z8955X40399015748
Wes Bell (Mooresville) - 1Z8955X40396353790
W duke-e Lily „COM

sh v Ste rT S a o° Haza Rdousa d mox c
Substances s R sed 11/18) l . 5 .
• Acid
o
c Acid Nutrient
r Ft m Sulfide
Telex, ,` Hydro
Ca i rn Car r cut
tic Soda
4 Ace
ide

B`EN TAG
r fd ntgtrcat on
Product identifier
Other means of ide„rtst'trat rr
Recommended use
: esotr merada,d restrict drs
Manufa :;tu ecarnporte,rtSeatr ,ti
Manufacturer
Corrapar,y, name
Telephone
E =•tea a it
Er arigenc y
F arrar'd(s) identification
Phyak:at hazards
Health hazards
OSHA defined haze rats
Label elements
tiattard .taterr! ent
Pr°ai..astt��r�at'= ata
Prevention
Reath r sa
Storage
Sa.,p Perrrervtat information
atio
SAFETY DATA SHEET
$ODUJM ROXt E: 2 %
Rena.
ALL PROPANDLTA R
None tiros,r
Not a etchier
Take ott immediate* all
s Composstb rn[!nformatUon on Ingredients
Mixrdrear
CAS number 5Jq
1310-.7 -2
a, r a

4Pirst-did rrt':east.res
Inhalation
Skin contact
Ei e contact
Most irnpaartaa't
s rnpttsaare/effeatra: acute and
de€ay'etf
(indication of uttFr*rrc diale
magical att'e,ntiata assail spacial
treatment needed
led
General information
5.. Far 4i hting rne, es
Suitable arxt nguishing media
Unsuitat to e,stitma a atstr ar
media
Specific hazards artsin a freer a
the rhea leaatI
Special. pr( er::tive equipment
and precautions for firefighters
i jhtsng
"instructions
Specific rrsothods
t3eanerth firms haazarda
6, Accident rs
Personal preartttraa,.
protectiveecuiftment and
errs rgency probedLr,
Move n'e to literati air (,tall a phys c
Take tali it r^a ratas.a
recall tter;ter ir,,rrec;ztata
tieing before re se
It sar x: ecs'4'
a°i a phyt
vomiting occurs.
Burning path argil severe itorrF t.v e akin carnage, Clauses ser OuS t e carnage t,_stgr a
fediaide stinging, tearing. redness ""ayeering aria pile C ea yi
Wetness torrid result
Seigooriteired
No ccos;tat fire e.
Freiman est eye ca °t age tinctliding
rec safes
Keep ineleceseary e.tsar 9'at u"nay Keep decade away itiorri arid upearie c: hiv""x
appropriate proleptic ea uax art as a clothing d during pie s r70t breathe mast or vector
col touch itemageri contain + sa V}�;a ra:ter'r toat. protective siothicp
Meftlt`srds and materials fair
Containment and cleaning Shp
7. Handrin and strait
Preca otin ns for safe earthing
Conditions for aafa; afaasa ea;
oPtrtcint3 array into ngatible:a€es
,6,3679,3 Venetia per
ate ventilating
he r
Avoid :r?oi t at x fr;. at: ,.,,
Stiritirt hygiene practices
t a�
het Pi

.. Exposure contrc s'person rrotetct rt
Occupatir r'°e: t eapossrs
US„ OSHA Table i. I globs kr Air Conforranants R9 CFR 191 ,ttlQO4
Components Type
3Dt4llwt arii(DROXiDS
,t.
Srw"ptt. H11 (GAS 1310-73-2
US.. ACGlet Threshold Limit Values
Components
US, 1\00 SEP Pocket Ganda teaCi'r
Components
SODIUM riftelDROX
,` 1AtOirl j (CP S
Biological limit salr,tes
Appropriate engineering,
controf
T yea
arbor
Type
Or ther e%igiesee P poritz e > to
exposure Omit%
wink facet
adorns
individual protection pleasures, such ae personal tomer"at
Tee following aro recommenotaigensfor >r•3Yx..,Jr".?£" of Protective�'i.:, ui S`�.ent (PPE)
Hazard rsee st. eri of Sate workplace according. to OSHA `eg at:t e s .,.' CFR ,
while performing any task ;ai°e,t-„ ',"-t tt;2kF z gra to this t;,,rottu
Ryerfar:,r protection Wear safely s
:SA in biotech n
Hand protection eµ rp`asts
Respiratory protection
Thermal hazards
General hygiene
considerations
h'y°'t t ttt't ptr
A.ppearraatre
Physical state
Form
Color
Ori Or
Odor threshold
pH
Melting point/freezing paint
ira. tlat h il'Rrr point and boiling
g
range
Flasitt, t' ttt ta:Nt
Evaporation rate r,ryt
Flammability (solid, cues$
Upper'a'tow r'flam lability or explo.e:iv
rh,miatahality ltrt [t n dE,vyFm ,.
%
Flammability israrit - upper
tea)
Valais
Vallee
Value
he€°.get protendive citothi t when ecesse 9f.
"t "'4.a personal , keglers free Satre spot as ana.st
It i ktr e e s''st ie smoking «eking Ractinge,y`
CLEAR COLORLESS
ODORLESS
tttt
i
apace rae
tufts
prate t map. sow ray V. H.YDR a
^>r;•;a'"s:«xrh 't,+e a.aYs1#. 05. Rt-iM03,1 .sat $f ;t'r 205 w. 1
pro
s.v

intailligi 660793 latori FIRENNTAre 01116-601671111 [NC PRooRliss ENERGY CAROLINAS Frelay June 111117
Explosive limb i lower fie) Not avagiatie
Explosive limit - upper (56) Nel available
Vapor pressure Not available
'Vapor density Nct avalettle
Relative density Not avallanla
Sol unitityties)
Solubility (Water) Nat avalie Cis
Partition coefficient Net available
giro eta no tierater)
Autnition temperature Nidi available
,Deisoryippieition temperature available
Viscosity Not a va debts
Other inforitto fot
Density 10,66 ihriatel
explosive properties exichisive
Ox id eel g properties Not caliettrig
Pent volatile 75 et esiersideaci
,Specific gra Vity 1„28
1:0,, Stabilityand re -activity
Reactivity Tes produce is states ancl noreseadlive tercet rlornli,i,t coreliters of kiss storage arid transport
Chemical :stability Mate Pia stable urger rOrria! co r,
Possibility cif hazardous hazardous colymerizatie dlea5 nC,t OC=r
reactiords
Conditions 10 avoid GCrita Nigh incompatialts el et le ;'
incompatible materials Strong acido
Hazardous decomposition No haze n10 eco rrnp0 SMO n prOdUCti are known
products
11 Toxicological information
tntormation on likely routes ,of exposure
inhalation May cause irritation to ilea reschatery SyS(eril Proterged linialat on may Ne somata
Skiontact Caches se,,,,en4
ye contact n'ethIeti serious eye, Cla mope
Ingestion leta Lissa olearsity a tract burrs
Symptoms related to iris altering pale add arrests costoialve skin sadirons Corress sera:tits sys Carriage Symbioses May
phycaChemical and imeatile stireging, teafilitg redness :,%rielfirg and therran vision mermadant eye darnalie imzito,:ntrti
toxicological thiristreso could re SkA
ch a recteristice
Information on toiticiatogiCal affects -
Acute toxicity Nal available
;Skin toreasibrairrirattaa Causes severe lit burns end eye Carnage
Se rioula stye dame geleye Ceases socidus eye damage
irritation
Respirattyry uskin sensitization
Respiratory sensitization Nisi a reshiettitty sensitizer
Skin sensitization This ciactuct la not expectedt ause skirt ormailibeede
Germ coif mutageoldity Nor data dee liable mitierdie product or any. Corrpore,r15, pintrIt Bt. greater tina,', 1%, aris
meraceric garioicsio
Carcinogenicity This proceed, is ret ecosistaraitt to ris eacierioder by AMC Ahearn tifIlis C,XiniA
ARC Monographs, Odic:tali Evaluation of Carcinogenicity
Not listed
„„--
MaterAc name SOnsidedi gognineetta
685793 tiliticed fir 05 Ressiori date; 2,6151 lapis gala 05-10 lege 7

OSHA Sp
US, Notional Toxico€aqy Prograrn ( TFtt Report
Nat tilted
toxic ty
get organ yr° r 1 ill„
sing€c exposure
'get organ iet•s{f sts,rrs€"is
y Reyral ;te,d Substances (2$ CFR
xPtsrrre
Aspiration hrazarrl
Chrogw e!'t "t
12, Ecological inf 7rrrl tt
as cat
r^S
Estimates tot rest
P sstst rar rind rttagrad ahs(
RiOaccumulative potential
Mobility in soil
Other adverse effects
13, Disposal conside
Disposal instructions
Local disposal regu ataoe•aa;
Hazardous waste code
Caret r ae7
TemdRealt
othea° adverse eretr r,
potP tir"ar. k`rnsto„„<a'f.r?e rifre€"wza¢r=?+,
'ions
Cornett and reclaim a,.r s,°,a`isr. s,;:' in sealed Ponta€aae
cr?r,ferrts'rontairter are accordance with local rag. inr
pose in accordance vote all aocticente regutatt
The acts code s"rw,ad .,„srtteseci sterrsro o rt. between the Lla" h p my ,shet r 4 w ,
_.._K _.. � nut .
Waste from residues unused
products
Contaminated pactozpinci
1 Tran'spa tt forrrt atj r
DOT"
UN number
UN proper shipprn.
Travisport hazer<t
Class
Subsidiary B 'a k
Packing group
Special precautions for uncle Reast s;afel,,.
ERG rpjrnbtr 15
tDOT informs tiort on packs
OD 0.X. Es; Ei
detests tersei SODOM HY Die DM w s r�
6''8s * n fe ar ;a a Ora„ 4'21 aax_, It -201 5 en,s,„ .a r.
Re r
disposal site Dispose of
roe co

iiirotiten '6-56793 FtOn. i3RENNTAf..:..i PROGRISs cAR0LINAs hz,„ 201-7
DOT
15 Re uatory informa
US tedefal regulations
lo
This product is a thiazaccistis Chemitist as. defined by lee OSHA. Hazard Commairicalion
Standard 29 ORR 1910 1200
FSCA Section 12(b) Export :Notification (40 CFR 701, Sabot Or
Nat re:goted.
CER.OLA Hazardous Substance List (40 CFR 002t44i
SID)RJM HYDROXIDE (CAS 1310 732) Listens
SARA 304 Emergency release notification
Net regulated
OSDA ,spectftcady Regulated Substances (2S 'CFR 1910;10LO 4050)
Not tabulated
Suderfund Amendments and Reautiaoriz.ation Act of 1966 (SARA)
Hazard categories immediale Hazard
Delayed Hazard , No
hire Hazard -
Pressure '"i4ZETC;
Reed:Mb( Hazard r Net
SARA 302 Extremely hazardous substance
Not doted'
SA ,3S11312 Hi 1u Yes
chemical
SARA 31 (TR! reporting)
Not regulated
Other tederat regulations
Clean Air Act (CAA( Sestina( 112 1rco Air Pollutants diitAPs) List
Nal regulated,
Clear! Alt Act (CAA) Section 112.(r) Accidentizi Release Prevention (49 CFR 68,130)
Nal regulated,
Safe Drinking Water Act Nut regulated
CSDWA)
US state regulations
California Contro4c,2$ $1.417.5tanCeS, cA Deportment sit Justice CC anforni'a He2,11.11 'and Safe Code Section 11100(
Not Pstraor
US, California, Candidate Chemicals List. Safer Consumer Products Flegulations (Cal, Code Rags, tit, 22, 69602,3, subdi
(a)))
SODKAI HYDROX0DE (NA(C2-20 (CAS 131043-2)
US„ Massaehrusetts RIK Substance List
SODIUM i-iYaROXODE NA(C2H)).
US, New Jersey Worker and Community RightstrsKru.us Act
SOEIDM HYDROXIDE blA(OHlti ICAS 312i43--2)
US, Permsy4vania Worker and CommurUty Right,to,,Know Caw
SODIUM 'HYDROXIDE (NA,600-4)) (CAS 11310-73-2i
DiS, Rhode Istand RTK
or soikii etyDROXIDE (NA (STsit, t SA S 31 0;73-.2
Valer.11 SODIUM HvDROME 25)b
35C223 22-%tol t2S R.222).)),1 ete ,04-7016 CID e 6 7

Sfincieurri in '666793 iners BRENISTAfir MITSSOUTLE RCN To „PROGRESS, EKEROC CAROLINAS firieerreders fit 20 7
US, California Proposition St
California Sale Drinking Water and Trixic Enforcement Act of 19E6 teficaposition ErS7 This reersinal is not knows to sorter
any chernicsis currently Shied os dersinegers dir reproductive iceire
Lnternalionat InveotraliecA'
Country( s) or regiOn inventory name Op inventory (yeSitlOr
A ustriinis Australian iriverripsy of Stre,arthel Substances WC% Yee
Canada Domestic Sebstaricea List Pint) Ye5
Seriada NociDarreastis Substddiges List (NOEL)
Crane Inds morf Existed:is Shamir:ZS Saffialarices ir Chins ECSC Yes
Europe European rive Mary of Existing Cs needraid Chestiest Yea
Substances (E11111ECS)
Eurose European, List of Notified Chemical Substances (ELSNICSt No
Apar inventory of Stearinti add New Cherricee Sobalioness NCS) Yes
Korea Existing Cderificais Psi ifiCip 'Yes
NSW Zearand New Zealand tovertnry "Ses
Philippines phsippise nos rap irs of Chemicals dr a rit.herriicai Substances Sas
fPICCS
Crated Stales & Pada* Rex Toxic Eirboisfices Cid* or Act ififiSCA1, vase ifilsra yes
as 'dad' reassierti Mat ceene:nreeres te! Ves orostior comp y vete meteeeere ,eeiethetheree a tirrthestetheel by tie sot seurdryfai
A 'rah indicates her Dna mord cornsonsfire altos orodurt eae srao 0, exempt rem eethei3 51 the memory ariethesteeed by the cpve,n,rtg
cotintrOk
6, Other r n Wor ucluding date of preparation or last revision
issue date 05- I 0-20
Revision date 1-04 - 20
Version Pi 05
H101 r stings risen', 2
fiki rdefoility
Pifysicai passed 0
SPA ratings
noriabilny
Sista bait)/ 1
Disclaimer White Brenntag believes the information corealned herein to be accurate, Breentspi makes re
representation Or WelflaPty eepre,SS Or impasse tegarefing, and sesames no tisbialy too the
bourece or corrisiateneso of the information Ins Buyer sesames di) reoperate% for hardring
using eritheir receding the Prodecil ir dectordaries vein aspirate* races& state a red lobe fast This
SSE shad rot in any way Chat or ereologe the operation dna effect of aria tre ref Ceneee05$
hiconstageri terms and coriditions of sere
Oro t.10'7"6" SC: ow al itscortharH:e5 25%
See
tratififird Version a CS Reirdori dere' it iiits Pei 6 Sods sae' Care di' 21116 7 r

Product exam
Altttatat : Commercial ;am
('hcml,c8l Name
4a nutty,. tits
I<tom tFla
hcrtttcal luan 1
Rectum mantled rasa
Matuufacturer
lffMC sAfyciming Corporal Dm
Alkali Chemicals 1}t`t [shin
1735 Market Street
Philadelphia, 1'A 1910e
P L: k1 2151299600
lai Safe ,° •
Sodium C'at°Ix►tt.ttr, „Anil
Snd
rof lea,.
18001 421 9300
1 703 r 527 38li7
4001 - 204937 (cH1.:°
All t ttla
I 307 X7 0 2452 1P1anI - Green River. WV
1 303 > ltlnl 1 1 ic'a l 1".' - t"ail Colleen,

rhonate, lydrous
Skin tarr€tart
Flash Point
Hazardous a:nrrukrustirr,
equipment and prerau
`4 aSil 6V t i2. RQ.h rip ‘saier .iiit soap. GO rnedieal ai.r en
is .artfrt 34tw41 arar•:It cpa isurainarnad r lu1hing, heti:ire rsus .
Reran k a p
atatd €a� l0�:.9 E,Fif, if sigios's:i rnpiiaarrn.. coon
4
i fC4r. "°ra"i, LVp. 9lnJ P.a"sadY..a:t!<
a i rt attar i 1;a 't E Tars
O +-2(i
,O2

Sod ttttt arbonate, = rt t °drolls
gated
atiiinal expoS0re ton
lords protecin
prop*
Apltearanee
Color
Physical state
Odor
Odor `litres/told
Mathanxntlaa
Freezing point
13oihnp Point/Rang
Flash point
Lvaporan rate
FIa°tttneunitnte^ propert
Oxidizing pt'nntrdi
Explosive properti
Vapor pressure
X'aptnr density
Relative density
rural Rubhea'. 'Cash o`rrta^ Iov
Qcopali
I 'IS11S #. 497-19.8
Revision ')are: 2013-03-26

Hulk rlensatt
'Vlrrld ulatr Weight
Water solubility
Percent volatile
Partition coefficient;
Viscosity
9,2 Other
thcirutltos
'1.uta=u,;netira
u nl
Skin irrtateuu
1AA50 Oral
1,1)50 l}e marl
l,(' tl Inhalation:
Sensitization
dttu
t0 0
not ae pl caahl
ENT¢eastra'=' at¢r° u r rraea¢ itrr �w,�.°r ttaP� ¢�t�.ai l�cr¢i�t9
l a_ita zdoatal aluminum
Sodium o \ ides.

nateAnhydrous
d degr dlity
None k sn
y»& APwa _dads
w /
Comphes.
Rol
MSSMS:DS w 497 9 $
Date: mU±; .
2

rhITnate, Anhydrous
edera
Toning rtiiit
d (:"ate
C'hrtmni
! ire Ila.tard
Sudden Release ul`Pressure Hazard
Rea: ire (laarard
(`I�ItI�'➢'ark
This auate tta i, ,;a .set
1. s.1)0FI .
Regulations
tions
t1 Reauthorization Act eel' 19'86 (SAR.i1).
st! 40 or ifte code of Federal Her!
Mridertile i`l"5a . iriKte .
C°ana.ala
'Phis product has heat classi:fre tat a rni
contains all the information required by t
iri;°I➢ HS ➢➢aeara! (:bass
D21' "(us"st: materials
\l`! .•(f➢➢bfS Raatiaa s ➢,e
% errs 4n Si it ns 3: t
Rea=is(ion ➢)aatei.
Reason fot rr;s
Disclaimer
111(.° Corporation believes that I#e .
hereof, .NO 1t _t.RR,t1"F'' OF 1I1`V F SS F"
WARR„51"E`l', EXPRESSED OR I\EPI.111),
relates only CO the specified product designated and may no
process, Further, since the aOnd'itions and methods mmr use art
Eirab6tily xs to any results obtained Or arising from am use of tha: tarot
tie
tin
110
t;<e
aar#'criteria of time Co
Prepared F1ms
Rev
;els Regulations ((`
tiding [ aia and smtementtii are ACC unite a tst tEsr date
OF \II I- t'EE.t\ 1 13l in" OR.i1\'t'tF1'E1F:R
P.i(tiDi'(Ei,9 E)1 1°,RI1\,. The inrirrrnatEan provided herein
tMSDS #: 497-49-8
-26
orpmuratpammr
'rich inrtrt"nnatdryn,

La Sala, Joseph Scott
From: La Sala, Joseph Scott
Sent: Friday, June 29, 2018 9:57 AM
To: 'certadmin@ncdenr,gov'
Subject: Marshall Steam Station - Change in Backup ORCs
Attachments: Marshall_Steam_PC1_ChangelnBackupoRC pdf;. Marshal
_ChangeinBackup0RC.pdt
Jenee,
04.
`xFF�'CE
Please find attached the operator designation forms for change of backup ORC at Marshall Steam Station (NPDES WW
permit NC)004987). Effective July 1, 2018, Marshall requests the following changes be made to the ORC/Backup ORC
for PC1 and WW1 at the facility:
Gregory Paul Phillips — Keep as ORC (WW/PC)
Joseph Scott La Sala — Keep as backup ORC (WW/PC)
Donald Scruggs — Remove as backup ORC (WW/PC)
Steve Hodges — Add as backup ORC (WW/PC)
Please let me know if you have any questions or concerns regarding this request of change for operator designation.
Thanks!
Scott
Sr, EHS Professional 1 Marshall Steam Station
Office 828.478,7820 ( Mobile 904,631.8042
8320 East NC HWY 150
Terrell, NC 28682
ioseph.Iasala c c u e• ener tyec orris
DUKE
ENERGY

WATER POLLUTION CONTROL SYSTEM OPERATOR DESIGNATION FORM (WPCSOCC)
NCAC 15A 8G .0201
Press TAB to enter information
Permittee Owner/Officer Name: DUKE ENERGY CAROLINAS, LLC
Mailing Address; 8320 E NC HWY 150
City: TERRELL
Email Address: rick.roper duke-energy.com
Signature:
Facility Name: DUKE ENERGY-MARSHA L STEAM STATION
County: CATAWBA
State:
Phone: [phone]
Zip: 28682
Date:
Permit # NC0004987
YOU MUST SUBMIT A SEPARATE FORM FOR EACH TYPE AND CLASSIFICATION OF SYSTEM:
Facility Type:
acility Grade:
PC
OPERATOR IN RESPONSIBLE CHARG
Print Full Name: Gregory P. Phillips
Certificate Type: PC
Certificate Grade: I
Email Address: greg,[e-mail]
Signature:
RECEIVEDiNGDENROWR
„S,i1T4'
WQR 0 S
MOORESViLLE REGIONAL Or1t0E
Work Phone: [phone]
Certificate #: 28197
Effective Date:
"1 certify that I agree to my esignation as the Operator in Responsible Charge for the facility noted. 1 understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Print Full Name: Joseph Scott L
Certificate Type: PC
Email Address: joseph.
Signature:
Sala
BACKUP ORC
Certificate Grade: I
duke -energy co
Work Phone: [phone]
Certificate tt 1002443
Effective Date:
"1 certify that 1 agree to my designation as 0 8 k-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission"
Mail, fax or email WPCSOCC, 1618 Mail Service Center,
ORIGINAL to: Raleigh, NC 27699-1618
Mail or Fax Asheville
a COPY to: 2090 US Hwy 70
Swannanoa, NC 28778
Fax: [phone]
Phone: [phone]
Washington
943 Washington Sq, Mall
Washington, NC 27889
Fax: [phone]
Phone: [phone]
Fax: [phone]
Fayetteville
225 Green St„ Suite 714
Fayetteville, NC 28301-5043
Fax; 910-486-0707
Phone: [phone]
Wilmington
127 Cardinal Dr,
Wilmington, NC 28405-2845
Fax: [phone]
Phone: [phone]
Enaii ce rtadmin ricde' lir. go v
Mooresville
610 E. Center Ave„ Suite 301
Mooresville, NC 28115
Fax: [phone]
Phone: [phone]
Winston-Salem
45 W. Hanes Mall Rd,
Winston-Salem, NC 27105
Fax: [phone]
Phone: [phone]
Raleigh
3800 Barrett Dr.
Raleigh, NC 27609
Fax: [phone]
Phone: [phone]
Revised 412015

WPCSOCC Operator Designation Form (continued)
Page 2
Facility Name: DUKE ENERGY - MARSHALL STEAM STATION Permit #: NC0004987
BACKUP ORC
Print Full Name: Steve D. Hodges
Certificate Type: PC
Certificate Grade: 1
Email Address: [e-mail]
Signature:
Work Phone: [phone]
Certificate #: 28173
Effective Date:
5/3ooig
"1 certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. ! understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"1 certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"I certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"1 certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Revised 4/2016

WATER POLLUTION CONTROL SYSTEM OPERATOR DESIGNATION FORM (WPCSOCC)
NCAC 15A 8G ,0201
Press TA8 to enter information
Permittee Owner/Officer Name: DUKE ENERGY CAROLINAS, LLC
Mailing. Address: 8320E NC HIWY 150
City: TERRELL
Email Address: rick roper@duke-energycom
Signature:
Facility Name: DUKE ENERGY-MARSHALL STEAM STATION
County:
CATAWBA
State: NC
Permit
Phone: [phone]
Zip: 28682
Date:
NC0004987
YOU MUST SUBMIT A SEPARATE FORM FOR EACH TYPE AND CLASSIFICATION OF SYSTEM:
Facility Type:
1 Facility Grade:
V1W
OPERATOR IN RESPONSIBLE CHARGE (ORC)
Print Full Name: Gregory P. Phillips
Certificate Type: WVV
Email Address:
Signature:
Certificate Grade: I
[e-mail]
Work Phone: [phone]
Certificate #:
Effective Date:
47
"1 certify that 1 agree to my designation as the Operator in Responsible Charge far the facility noted. I understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and foiling to do so con result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Print Full Name: Joseph Soo
Certificate Type: WW _
Email Address: joseph.lasala@duke-energyco
a Sala
Signature:
ACKUP ORC
Certificate Grade:
Work Phon
Certificate #t: 1005114
828-478-7820
Effective Date:
"I certify that 1 agree o my designationas a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission,"
Mail, fax or email
ORIGINAL to:
WPCSOCC, 1618 Mail Service Center,
Raleigh, NC 27699-1618
Fax: [phone]
Email r„e; ; ad mir" d=''',LLsr, gOV
Mail or Fax Asheville Fayetteville Mooresville Raleigh
a COPY ta: 2090 US Hwy 70 225 Green St., Suite 714 610 E. Center Ave., Suite 301 3800 Barrett Dr.
Swannanoa, NC 28778 Fayetteville, NC 28301-5043 Mooresville, NC 28115 Raleigh, NC 27609
Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone]
Phone: [phone] Phone: [phone] Phone: [phone] Phone: [phone]
Washington Wilmington Winston-Salem
943 Washington Sq. Mall 127 Cardinal Dr, 45 W. Hanes Mall Rd.
Washington, NC 27889 Wilmington, NC 28405-2845 Winston-Saiem, NC 27105
Fax: [phone] Fax: [phone] Fax: [phone]
Phone: [phone] Phone: [phone] Phone: [phone]
Revised 4/2016

WPCSOCC Operator Designation Form (continued)
Page 2
Facility Name: DUKE ENERGY - MARSHALL STEAM STATION Permit #: NC0004987
BACKUP ORC
Print Full Name: Steve D. Hodges
Certificate Type: WW
Certificate Grade: II
Email Address: [e-mail]
Signature:
Work Phone: [phone]
Certificate #: 26786
"/ certify that I agree to my designation as
the rules and regulations pertaining to the
Disciplinary Actions by the Water Pollution
Effective Date: s/ , 'o/a Jo
a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"1 certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Work Phone:
Certificate Grade: Select Certificate #:
Effective Date:
"I certify that l agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth In 15A NCAC 0SG .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"1 certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Revised 4/2016

North Carolina Departn en
ATTENTION. WPCSOCC
1618 Mail Service Center
Rrleirtr. North Carolina 2
Environmental l Oua rt ,a
99_tb1Br
Duke ,Ene;yy Ca rr .
Operator In Responsible Charge
Back-up Operator in Responsible Clrarge
Marshall Steam Station - NC0004987 Catawba Go
Pease find (attached) the corresponding WPCSOCC System Oper°ator 'Designation
Forms tor change in operator in responsible charge (ORC) and backup ORC for
Marshall Steam Station.. The designation forms were submitted to the WPCSOCC and
Mooresville Rego Tonal Office on September 27.£ 201 7. via electronic mail and fax
deliveries.
Please make the follow changes to your database effective for October` f , 2017.
Scott La Sala - Delete as ORC at Marshall Steam Station
Greg Ph hips - Add as ORC at Marshall Steam Station
Scott La Sala . Add as backup ORC at Marshall Steam St rtion
' Don Scruggs - Add as backup ORC at Marshall ll Steam Station
Please direct any Corr rspc ndeuce or questions concerning the NPDES Program at
MarshSteam Station to Scott La Sala at 828-478-7820.
Rick. Roper
Marshall Stearn Station, Station Manager
General Manager IfI
FHO- Carolinas Coal
Oaac:hr nt
t'4'Wi•4°°`.dukea€. rneri,ks.:iun

A
xc: lVtooresville Regional Office, DWF3
bc/ %vlattachment J 3 La Sala — Marshall
RH, Stafford — l'\11G03A2
'Record Type Gad' ENV-50-.02
UPS Tracking: ,,';'41PCSOCC, - itsv5.5x40.39.12(,„4/72
MRO - izo.55x-to39x25-Two';
Miie$,ThaV Steaal Station
1,54'
WdukL-energy

WATER POI,m1. - :1NCONTROL TEM U RA OR DESI(NAT ON
NCAC 1.5A 8G .0201
ORM
4OCC)
Press TAB toenter
PE rrnitt*re Owner/Officer Name: Duke Energy Carolinas, 11,C
mailing A.eieiress: 8320 East Hwy '150
otv: Terrell
risk.mr er@drIke-ne
Facility Name: Duke E.
County,:
Catawba
YOU MUST SUBMFF A SEPARATE FORM i R E ACHi, TYPE AND WAS
Print F u
Name: Greg
Certificate Type: PC
'Email Address: greg phil€ip
Signature:
l Cerbly that l agree to my design aticari rrs /he Vpe.rtator- in Respans;b
rules and rearriation,S, pertaining to the re, pr:pnsibil tic s o1 the CRCas r:
Disciplinary Actions by the Water Pollution Control System Operators tit:
tt:: NC
Permit fr rat
FKAT1O OF SYS1'°E
OPERATOR tN R SPONS1BLECHAR
(er
-nergy,cornT
Pr°rat: Full Name: Donald F. SCrage s
(rrtiilc tr Type, PC
Email Address: don scrugg
Signature:
l certify} that l agree to my designation os ,up Operate in Re pnrrsible
the tales and regulations pertaining to the resprarrsxlr'Idles ot, the OR(
Disciplinary Actions, by the Water Pollution (c>ntroi System Operators Cer;tr.
Mail, fax or email
ORIGrNAL to:
Mail or Fax
COPY to.
.rPCSOC;'i 1618 Mid Service Center,
Raleigh, NL. 2'7699461.8
Asheville
2090 € 5 Hwy '70
Swarzndnea, NC 287.7.8
Fax: 828w299-7043
Phone: [phone]
Washington
943 Washington Sq Mall
Washington, NC 27889
Fax: [phone]
Phone- 252-946-6481
(ORC)
Work. r It. Phone.
(0rtit Cr
CAC 08S 0201
828-4 78- 78
28682
4787647
rid and will abide by the
Work Phcme 704-400- 3005
Certificate #: 27892
ark 7ar tare faostaty rrratttrt. t understand arg it a6ic7o by
h in 15, !0KAC 08t: 0204 Cana failing to do so ti°rw result i'rr
Fax 91' -115 2726
Fayetteritie
225 Green St., Suite 71a1
Fayetteville, NC 28301r51)43
Fax: [phone]
Phone: [phone]
Wilmington
127 Cardinal Dr.
Wilmington,, NC 28405 2845
Fax: [phone]
Phone: [phone]
Mo rr`eswUe
610 E. Center Ave., Suite 301
Mooresville,, NC 7 115
Fax: [phone]
Phone: [phone]
Winston-Salem
45 W, Hanes Mail Rcl,
Winston-Salem„ INC 2'7105
Fax. [phone]
Phone: 3 36-7'76-9800
Raleigh
3800 £Tattett Dr.
Raleigh, NC 27609
Fax: [phone]
Phone: [phone]
Real t 44 f6

Permit #r NC0004987
Facility Name: Duke Energy -Marrs
Steam Station
ate, Type : PCt.vertifir:cy
BACKUP ORC
Operator tr). Resno sill le Chiar
. "'t?i r '..a
BACKUP ORC
Certificate Typ
Email Address:
Signature:
r r certify that I ogrcr:x to ayr designation
',id' regatta ions pertaining to the, ra sponslbidin
rirorr by the Water Pollution, Control Systcrrn CJpe ran
it Name:
Certificate' Type i iect
Email Address:
Signature:
certify that
the rt:ale.s and
agive to my' deSnrq utitr. as rr gt`rCk uta r)peratar ira ReSpa,r!Jtiible
gulcrtions pertaining to the responsibilities of the ORC cis set forth in 1 bA ,NCAC'.0204 and f erili.
Disciplinary Actions bra that Water t:°ontrt l Sys tern Operators Ce rtisCornma siO . ”
4i -7 :?
6443
'Jl(rk Phone,:
A NCA 08G rid foga
rn iss iora.
Ftfectuv
Print Full Name:
Certificate Type: Select
Email Address:
BACKUP ORC
Certificate Grade: Select
tyfro tee, it
Work Phone:
Certificate #:
d will slide by
do.sca can result in
Signature: Effective Date,:
'I certify that I agree to my de.siq.ncatioo as o Rack up Operator in Responsible Charge for the facility noted I understand and mvill abide by
the rutes and reguiaticans pertaining to the responsibilities of the ORC as set forth .in 25A NCAC 08G tt0204.and failing to do so can result are
Disciplinary Actions by the Vtrater Pollution Control System Operators Certification Commission,'
Revised 42076

WAixrE
1TION CO tTR(
YSTE OPERATOR D SIGN
NCAC 15A 8G u0701
N PR
County;
Press T413 tr:r er}.C.ec
Permittee Owner/Officer Narrate: Duke Energy Carolinas, 't_L.0
Mailing Address: 8320 East Hwy 150
City, Terrell
ris<k.roper'tt
Facility Name; DiA e [nergr'
Catawba
YOU MUST SUBMIT SEPARATE FOR
tt'ar"11 Station
rn
c
Permit
NCO 049u;k"
R EACH TYPE AND CLASSIFICATION OF SYSTEM:
OPERATOR !i RESPO
ut ttnli Name: 1regry E. t'ollitas
ti scat 1'ypt- VVW
ant Address: grog,„phdlip
Sgnataure:
certify that l agree to m,
rules and reage.alotr'ons pertcfnr,rnt-
Disciplinary Actions
Print Full Marne:
Cert:ktcate Type
Email
ldress: don.scruggs
Signature.
ke--e n e
lion es the 1
the re:spans r
y,t-orn
'StLE CHARGE OC
Work. Phone:
:
Cect.@f pcatk
crawl' io lie.°sp sr'dle Char
BACKUP ORC
energy.coni
de: f1
`°'I certify that l agree to my designation as a Roc:'. ,up Operator in Responsible Charge,
the rules and regulations pertaining to the responsibilities Of'the ORC as Set fi.'irtla in 1.5A
Disciplinary„ Actions by the Water Pollution mt tion Ctrof System Operators Ceti u0on Comm,_A� LRW�a
Malt„ fax or email WPCSOtwC„ 1618 Mail Se rm ic r.t Center,,
ive Date:
nea.tedl 1 understood end will abide by the
'CAC 08G .,0t)4 and foiling lirtq to do 4o can result irk
ORIGINAL to
Mall or Fax
a CorPY tor.
Raleigh, NC 276 r9.1618
Asheville
7090 tJS Hwy 70
Swannanoa,, .NC 28778
Fax: [phone]
Phone; 828-296--4500
Washington
943 Washington Sq, Mall
'Washington, NC 27889
Fax: [phone]
Phone: 252n946• 6481
Fayetteville
225 Green 5
, Suite 7'14
f=rayetteville,, NC 28301 SO4.3
Fax 910-486-?'707
Phone.; 910I 4.33-3300
Wilmington
127 Cardinal Dr,
Wilmington, NC 2840 5-2845
Fax: [phone]
Phone; 91:0 796-7215
715- 721 mai
Moore
610 E., Center Ave., Suite 301
Mooresville, , NC 281.15
Fax: 704 ,663-6040
Phone: [phone]
Winston-Salem
45 W. Banes Mall Rd,
Winston-Salem, NC 27105
Fax: [phone]
Phone: [phone]'8,00
e 704 40
10696
actht,y noted, r understood and will abide by
NC AC 08G .0204 land /4rc",lintl to tiaa sea r'rtaa result in
Raleigh
3800 Barrett Dr.
Raleigh, NC 2760
Fax, 919•571-4718
Phone: [phone]
4/`2t?rF

ignition Form Tray (r"r:ar, °`teas et
Facility Name: Duke Energy -Marshall
Name:
Certificate 'Fyne: On
Erna ri Address:
Signature:
earn Station
BACKUP ORC
r.. ,n, rd" rn
BACKUP ORC
Permit #; N00004 87
`k Phone:
it;
Eve Date°
t certify that my des. r!lricr Lora cr l rrs: _ul as ra tr r in es ¢ansibie Charge f a tits ftar.:aY,rtyn0ted, l .u,nderrstond and wiai ralaaa e try
he rules and regulations pertaining to the responsibilities of the OR r s sit forth in 15r7 NCAC 08G .0204 and to dose cap r'es
taasc'plinar %Actions by the VVrat r Pollution Control system Operators (Cr ificrataaa r Commission,
-47i- r 8 20
BACKUP ORC
Pwrit full Name:
e:
rtiftte 'type: . S
ill Address:
Signature„
certi,N that 1 u€ t'cr° tt) my ryesignatinrl 05 0 Back-up up Opero tot rrc Per" rrstb
the rules and regrsleations pertwnrng to the itis pansibalities a;
Disciplinary Actions by the Water Pollution C:ontrio/ System t)p rotors Cr r tifico
Print lull Narale:
erfificate 'Type: Select
kt'ail Address:
Signature:
tificate Grade: Select
➢Vork Phiene:
to ft.
Effective Date:
ty nrtta°.
l arc tSA NCAC 086 .,0204 anti failing to dos':
Ar'7 Cora➢nrrhtitan7.'�,
Work Phone:
Certificate #;
'e Date
' i certify that t agree to my designation -uta Operot rn lra staaansible t hwgn for the ft callty noted. P understand and will wade by
the rules and regulations pertaining to the responsibilities of tice ORC as set forth ari 15A NCAC 08o _0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control Systems Operators Certa'fire tara,n Commission,'
Ptosea1::'Jrg

Bell, Wes
From: La Sala, Joseph Scott <[e-mail]>
Sent: Wednesday, September 27, 2017 4:55 PM
To: SVC DENR.certadmin
Cc: Bell, Wes; Scruggs, Don; Philips, Greg; Loveland, Brad P
Subject: Marshall Steam Station - Change of ORC, Permit #NC0004987
Attachments: ORC Change 9272017.pdf
Dear Sir or Madam:
Please find the attached Water Pollution Control System Operator Designation Forms for Marshall Steam Station's
wastewater permit (no. NC0004987), for the wastewater system located at 8320 E NC Hwy 150, Terrell, North Carolina
in Catawba County.
Duke Energy has received notification from the NCDEQ regarding reclassification of the wastewater system to Bio-
Wastewater I and Physical/Chemical I status effective June 1, 2017. In response, Duke Energy is submitting this update
and change of Operator of Responsible Charge within 120 days of the new classification, pursuant to 15A NCAC 08G
.0201(3)(b)(i), North Carolina Administrative Code.
Please contact me at the below phone number if you have any questions regarding this submittal and change of ORC for
Marshall Steam Station.
Thanks,
Scott
//ape At 0,eae
Sr. EHS Professional I Marshall Steam Station
Office 828.478.7820 I Mobile [phone]
8320 East NC HWY 150
Terrell, NC 28682
joseph.lasala cr.duke-energy.com
DUKE
ENERGY.
CA[O It1A5
1

DUKE
' ENERGY,
Date: /72 7 J/
To: s- 7ee,b4qi
Fax: 7 64 .$ j3 Coh/o
Company: ,�` Phone: -70 11 75.6 3 i
From: s—cale
Fax: cF�� ,7e. 777 c
Location:Ai cs--5 -� -
Company: Duke Energy
Phone: ? ? 4/7 e 7E.20
Number of pages including this cover page: 5
Subject:
/q 4je
Acti/54`c9(.19,) --
1aer`/42I Li9eF?
This facsimile contains information which (a) may be LEGALLY PRIVILEGED,
PROPRIETARY IN NATURE, OR OTHERWISE PROTECTED BY LAW FROM DISCLOSURE,
and (b) is intended only for the use of the Addressee(s) named above. If you are not the
Addressee, or the person responsible for delivering this to the Addressee(s), you are
hereby notified that reading, copying or distributing this facsimile is prohibited. If you
have received this facsimile in error, please telephone us immediately.

•
DUKE
Ne ENERGY,
Date9/27//
To: W p �--®C Fax: 57 17 - 7 f5 _ D.7 2,6
Company: ��.� Phone:
From: C--- / 4q. /G.
Fax: F L 7c� 7 7-7 6
Location: 1/ gi\d,
Company: Duke Energy Phone: Fe56-7F
Number of pages including this cover page: 5
Subject:
01QC CAI /1/6-1Y'i C9'1bq
)6Le7-A1,=7I 44 /1/c 0°0 y 07
This facsimile contains information which (a) may be LEGALLY PRIVILEGED,
PROPRIETARY IN NATURE, OR OTHERWISE PROTECTED BY LAW FROM DISCLOSURE,
and (b) is intended only for the use of the Addressee(s) named above. If you are not the
Addressee, or the person responsible for delivering this to the Addressee(s), you are
hereby notified that reading, copying or distributing this facsimile is prohibited. If you
have received this facsimile in error, please telephone us immediately.

WATER POLLUTION CONTROL SYSTEM OPERATOR DESIGNATION FORM (WPCSOCC)
NCAC 15A 8G .0201
Press TAB to enter information
Permittee Owner/Officer Name: Duke Energy Carolinas, LLC
Mailing Address: 8320 East Hwy 150
City: Terrell
Email Address: [e-mail]
Signature:
Facility Name: Duke Energy- Marshall Steam Station
County: Catawba
State: NC
Phone: [phone]
Zip: 28682
Permit # NC0004987
YOU MUST SUBMIT A SEPARATE FORM FOR EACH TYPE AND CLASSIFICATION OF SYSTEM:
Facility Type:
WVV
Facility Grade:
OPERATOR 1N RESPONSIBLE CHARGE (ORC)
Print Full Name: Gregory P. Phillips
Certificate Type: ViIW
Certificate Grade: I
Email Address: [e-mail]
Signature:
Work Phone: [phone]
Certificate #: 13347
Effective Date:
911-zQ/7
1 certify that I agree to my designation as the Operator in Responsible Charge for the facility noted. 1 understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name: Donald L. Scruggs
Certificate Type: WW
Work Phone: [phone]
Certificate Grade: Il Certificate it: 10696
Email Address: [e-mail]
Signature:
Effective Date: f!
7 ;0/7
"I certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 1SA NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Mail, fax or email
ORIGINAL to:
WPCSOCC, 1618 Mail Service Center,
Raleigh, NC 27699-1618
Fax: [phone] Email: [e-mail]
Mail or Fax Asheville Fayetteville Mooresville Raleigh
a COPY to: 2090 US Hwy 70 ' 225 Green St, Suite 714 610 E. Center Ave., Suite 301 3800 Barrett Dr.
Swannanoa, NC 28778 Fayetteville, NC 28301-5043 Mooresville, NC 28115 Raleigh, NC 27609
Fax: [phone] Fax: [phone] Fax: [phone] Fax: [phone]
Phone: [phone] Phone: [phone] Phone: [phone] Phone: [phone]
Washington Wilmington Winston-Salem
943 Washington Sq. Mall 127Cardinal Dr. 45 W. Hanes Mall Rd.
Washington, NC 27889 Wilmington, NC 28405-2845 Winston-Salem, NC 27105
Fax: [phone] Fax: [phone] Fax; 336-776-9797
Phone: [phone] Phone: [phone] Phone: [phone]
Revised 412016

WPCSOCC Operator Designation form (continued)
Page 2
Facility Name: Duke Energy -Marshall Steam Station
Permit #: NC0004987
`BACKUP'_ORC
Print Full Name: Joseph Scott La Sala
Certificate Type: WW
Certificate Grade: 1
Email Address: joseph,lasala©a duke-energy.com,I
Signature:
Work Phone: [phone]
Certificate #:1005114
Effective Date: /f 'z f f
1 certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
.BACKUP ORC
Print Full Name:
Certificate Type: WIN
Email Address:
Signature:
Certificate Grade: 1
Work Phone:
Certificate #:
Effective Date:
"l certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution, Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge far the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as forth in 15A NCAC 08G.0204 and foiling to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"1 certify that! agree to my designation as a Backup Operator in Responsible Charge for the facility noted. l understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 1SA NCAC 08G .0204 and failing to do so can result in
DisciplinaryActions by the Water Pollution Control System Operators Certification Commission."
Revised 4r2015

WATER POLLUTION CONTROL SYSTEM OPERATOR DESIGNATION FORM (WPCSOCC)
NCAC 15A 8G .0201
Press TAB to enter information
Perrnittee Owner/Officer Name: Duke Energy Carolinas, LLC
Mailing Address: 5320 East Hwy 150
City: Terrell
Email Address: [e-mail]
Signature:
Facility Name: Duke Energy- Marshall Steam Station
County: Catawba
State: NC
Phone: [phone]
Zip: 28882
Date:
Permit # NC0004987
YOU MUST SUBMIT A SEPARATE FORM FOR EACH TYPE AND CLASSIFICATION OF SYSTEM:
Facility Type:
PC
Facility Grade:
`QPERATOR,IN'RESPONSIBLE. CHARGE (ORC)
Print Full Name: Gregory P. Phillips
Certificate Type: PC
Certificate Grade: I
Email Address: [e-mail]
Work Phone: [phone]
Certificate #: 28197
Signature: p ,,,�_ P P. Effective Date: 7_29_20/7
"I certify that I agree to my designation as the Operator in Responsible Charge for the facility noted. ! understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name: Donald L. Scruggs
Certificate Type: PC Certificate Grade: I
Email Address: [e-mail]
Work Phone; 704-400-3005
Certificate #: 27892
Signature:0.01,4e47 Effective Date: 72744/7
"I certify that I agree to my designation os o Back-up Operator in Responsible Charge for the facility noted. f understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NC4C 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Mali, fax or email
ORIGINAL to:
Mail or Fax
a COPY to:
WPCSOCC, 1618 Mail Service Center,
Raleigh, NC 27699-1618
Asheville
2090 US Hwy 70
Swannanoa, NC 28778
Fax: [phone]
Phone: [phone]
Washington
943 Washington Sq. Mall
Washington, NC 27889
Fax: [phone]
Phone: [phone]
Fax: [phone] Email: [e-mail]
Fayetteville
225 Green 5t., Suite 714
Fayetteville, NC 28301-5043
Fax: [phone]
Phone: [phone]
Wilmington
127 Cardinal Dr.
Wilmington, NC, 28405-2845
Fax: [phone]
Phone: [phone]
Mooresville
610 E. Center Ave., Suite 301
Mooresville, NC 28115
Fax: [phone]
Phone: [phone]
Winston-Salem
45 W. Hanes Mall Rd_
Winston-Salem, NC 27105
Fax; 336-776-9797
Phone: [phone]
Raleigh
3800 Barrett Dr.,
Raleigh, NC 27609
Fax: [phone]
Phone: [phone]
Revised 412016

WPCSOCC Operator Designation Form (continued)
Page 2
Facility Name: Duke Energy -Marshall Steam Station
Permit #: NC0004987
BACKUP ORC
Print Full Name: Joseph Scott La Sala
Certificate Type: PC
Certificate Grade: 1
Email Address: [e-mail]
Signature:
Work Phone: [phone]
Certificate #: 1002443
Effective Date: 9/i2//f 7
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and foiling to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Certificate Grade: Select
Work Phone:
Certificate #:
• Signature: Effective Date:
"? certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 1SA NCAC 08G.0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
Certificate Grade: Select
Work Phone:
Certificate #:
Effective Date:
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. ! understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so con result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name:
Work Phone:
Certificate Type: Select Certificate Grade: Select Certificate #:
Email Address:
Signature:
Effective Date:
"1 certify that 1 agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. 1 understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 1SA NCAC 08G .0204 and failing to do so can result In
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Revised 42016

�a DUKE
�: ENERGY®
August 4, 2017
Mr. Jeff Poupart, Section Chief
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Paul Draovitch
Senior Vice President
Environmental, Health & Safety
526 5. Church Street
Mail Code: EC3XP
Charlotte, NC 28202
(980)-373-0408
RECEJVED/NCI] ENR/DWR
AUG 14 2017
WQROS
MOORESVILLE REGIONAL OFFICE
Subject: Owner Affiliation and Facility Contacts for North Carolina NPDES Correspondence
Duke Energy NPDES Permitted Facilities
Dear Mr. Poupart:
As discussed with you by Richard Baker and Shannon Langley on July 5, 2017, Duke Energy has recently
noted an increased number of documents and correspondence from your agency being directed to the
attention of incorrect staff persons for our NPDES permitted facilities. A few recent examples include
the annual NPDES inspection report for the Mayo Steam Station and a Notice of Violation for the Cape
Fear plant being sent to the Vice President of Harris Nuclear Plant; as well as correspondence for the
Allen Steam Station sent to the South Carolina Director of Environmental Policy. In each case, this has
led to delays in the permitted facility receiving information and impacts our ability to provide time
sensitive responses to the Department of Environmental Quality (DEQ).
Duke staff have discussed this situation with DEQ staff in the central and various regional offices. Based
on our conversations and a review of information captured in your BIMS system, we believe the best
way to address this is with the following included information:
1. A single name/ownership change form to request that the "owner affiliation" for entities Duke
Energy Progress, LLC (DEP) and Duke Energy Carolinas, LLC (DEC) be updated with my contact
information. There appear to be numerous obsolete contacts listed as "owner contact persons"
in your BIMS database- that field can be updated to include my name and the others removed.
2. The "permit billing contact person" should be updated for all facilities to name Cynthia Winston,
Manager, 410 S. Wilmington Street, NCRH15, Raleigh NC 27601. She can be reached at
[phone] and [e-mail].
3. The "facility contact person" for each facility should reflect the Station Manager at the site. A
list of current Station Managers for all DEP and DEC facilities is attached to this correspondence.
4. The fields for "permit contact person" and "persons with signatory authority" have been
recently updated as part of the e-dmr registration process and appear accurate as of this time.
Based on this information, I would envision that general correspondence applicable to more than one
Duke Energy facility, such as groundwater information or other programmatic issues, should be directed

Mr. Jeff Poupart
August 4, 2017
to my attention, while station specific communication should be directed to the Station Manager for the
site. Duke Energy will continue to routinely update the DEQ in a timely manner when facility contacts
change. If you think it would be helpful, we would be available to meet with your staff to discuss the
best way to assure accurate delivery of correspondence. We are providing copies of this letter to each
of the regional office supervisors responsible for NPDES permit oversight.
If there are any questions relating to this request please contact Anne Pifer at (980)-373-1609 or
at anne.pifer(alduke-energy.com.
Sincer
PI Draovitch
Senior Vice President
Duke Energy Environment Health and Safety
Attachments
Cc: Bob Sledge/NCDEQ
1617 Mail Service Center
Raleigh, NC 27699-1617
Landon Davidson/NCDEQARO
2090 US Highway 70
Swannanoa, NC 28778
David May/NC DEQ WaRO
943 Washington Square Mall
Washington, NC 27889
Corey Basinger/NC DEQ MRO
610 East Center Ave, Suite 301
Mooresville, NC 28115
Jim Gregson/NC DEQ WiRO
127 Cardinal Drive Ext.
Wilmington, NC 28405
Sherri Knight/NCDEQ WSRO
450 West Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
Trent Allen/NC DEQ FRO
225 Green Street, Suite 714
Fayetteville, NC 28301-5095
Danny Smith/NC DEQ RRO
1628 Mail Service Center
Raleigh, NC 27699-1628
Bethany Georgoulias
Stormwater Program, NCDEQJ DEMLR
1612 Mail Service Center, Raleigh, NC 27699-1612
Anne Pifer/Duke Energy
FileNet

FACILITY CONTACTS (STATION MANAGERS) FOR DUKE ENERGY FACILITIES - AUGUST 4, 2017
- -
OwnerName
.
- - -
. "Facility Name
- ..
Station Type:
-
• N_ PDES Stormwater
PermitNumlier,
.. _ -
-, NPDES Wastewater
, 'Permit Number.
, .
" General -C
Permit.
•. � 'Number
�_'
Facility Contact
' .. - - - -
_ -- -
FacilityCoontact'Address'
- - - -
Duke Energy Carolinas, LLC
Allen
Coal
NC5000546
NC0004979
Brent Dueltt, Station Manager
253 PLANTALLEN RD, EELMONT NC 28012
Duke Energy Progress, LLC
Asheville
Coal/CT
_
NCS000575
NC0000396
Garry A. Whisnant, Station Manager
200 CP&L DRIVE, ASHEVILLE NC 28704 •
Duke Energy Carolinas, LLC
Bear Creek
Hydro
NCG500124
Preston H. Pierce, General Manager
165 BAD CREEK R0, SALEM SC 29676
Duke Energy Carolinas, LLC
Beiews Creek
Coal
NCS000573
NC0024406
Regina! D. Anderson, Station Manager
3195 PINE HALL ROAD, BELEWS CREEK NC 27009
Duke Energy Progress, LLC
Blewett Falls
Hydra
NCG500190
Michael T. Brlssle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Carolinas, LLC
Bridgewater
Hydro
NCG500102
Mic ha el T. Brissle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Progress, LLC
Brunswick
Nudear
NC5000590 •
NC0007064
William R. Gideon, Site VP
8470 RIVER RD. SE, SOUTHPORT NC 28461
Duke Energy Carolinas, LLC
Bryson
Hydro
NCG500129
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Caralinas,LLC
Buck
Coal/CT
NC0004774
Henry A. Botkins, Station Manager
13E15DUKEVILLE ROAD, SAALISBURYNC28146
Duke Energy Progress, LLC
Cape Fear
Coal/CT
NC5000574
N00003433
lssa J.7arzar, Station Manager
411 FAYETTEVILEL STREET, RALE1GH NC 27601
Duke Energy Carolinas, LLC
Cedar Cliff
Hydro
NC6500125
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM 5C 29676
Duke Energy Carolinas, LLC
Cliffside
Coal
NCS000571
NC000.5088
Dave Barnhardt, Station Manager
573 DUKE POWE ROAD, MOORESBORO NC 28114
Duke Energy Carolinas, LLC
Cowans Ford
Hydro
NCG500139
Michael T. Brlssle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Carolinas, LLC
Dan River
Coal/CT
_
NC5000572
N00003468
Lawrence D. Sparks, Station Manager
864 5 EDGEWODD RD, EDEN NC 27288
Duke Energy Progress, LLC
Harris/HEEL
Nudear
NC0039586
Benjamin C. Waldrep, Site VP
400 5 TRYON ST, CHARLOTTE NC 28202
Duke Energy Progress, LLC
Lee/Wayne County
Coal/CC
NC0003417
Jeffery D. Hines, Station Manager
1199 BLACK JACK CHURCH R0, GOLDSBORO NC 27530
Duke Energy Carolinas, LLC
Lincoln
C7
NC0080781
Henry A. Batklns, Station Manager
1385 DUKEVILLE ROAD, SAUSBURY NC 28146
Duke Energy Carolinas, LLC
Lookout Shoals
Hydro
NCG500I20
Ml hael T. Brlssle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Progress, LLC
Marshall
Hydro
NCG500591
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Carolinas, LLC
Marshal!
Coal
_ NCS000548
NC0004987
Rick R. Roper, Station Manager
8320 EAST NC HWY 150, TERRELL Nt 28682
Duke Energy Progress, LLC
Mayo
Coal
NC5000580
NC0038377
Tom Copolo, Station Manager
__ _
10660 BOSTON ROAD, ROXBORO NC 27574
Duke Energy Carolinas, LLC
McGuire
Nudear
NCS000020
NC0024392
•
Steven D. Capps, Site VP
12700 HAGERS FERRY RD, HUNTERSVILLE NC 28087
Duke Energy Carolinas, LLC
Mission
Hydro
NCG500128
Preston H, Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Carolinas, LLC
Mountain Island
Hydro
NCG500131
Michael T. Brlssle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Carolinas, LLC
Nantahala
Hydro
NCGS00136
Preston H. Pierce, General Manager
165 BAD CREEK R0, SALEM 5C 29676
Duke Energy Carolinas, LLC
Oxford
Hydro
NCG500119
Michael T.8rissle,General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Carolinas, LLC _
Rhodhiss
— Hydro
CC—
NCG500108
Michael T, Brlssle, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Progress, LLC
Richmond County
NCG500594
Thomas Hanes, Station Manager
198 ENERGY WAY, HAMLET NC 28345
Duke Energy Carolinas, LLC
Riverhead
Coal/CT
NC5000549
NC0004961
Tim Hill, Station Manager
400 S TRYON ST, CHARLOTTE NC 28202
Duke Energy Carolinas, LLC
Rockingham
CT
NC0086665
Lawrence D, Sparks, Station Manager
864 S EDGEWOOD RD, EDEN NC 27288
Duke Energy Progress, LLC
Roxboro
Coal
NC5000581
NC0003425
Jason V. Haynes, Station Manager
1700 DUNNAWAY ROAD, SEMORA NC 27343
Duke Energy Progress, LLC
Sutton
Coal/CT
NC0001422
Jesse E. Huntley, Station Manager
801 SUTTON STEAM PLANT RD, WILMINGTON NC 28401
Duke Energy Carolinas, LLC
Tennessee Creek
Hydro
Hydro
_
NCG500123
Preston H. Pierce, General Manager
165 BAD CREEK R0, SALEM 5C 29676
Duke Energy Carolinas, LLC
Thorpe
NCG500127
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Progress, LLC
Tillery
Hydro
NCG500189
Michael T., Brlssie, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Carolinas, LLC
Tuskasegee
Hydro
NCG500126
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Carolinas, LLC
Tuxedo
Hydro
NCGSC0110
Michael T. Brlssie, General Manager
257 DUKE LANE, STANLEY NC 28164
Duke Energy Progress, LLC
Walters -_-__
Weatherspoon
Hydro
Coal/CT
_ _ _
NC5000589
NCG500188
Preston H. Pierce, General Manager
165 BAD CREEK RD, SALEM SC 29676
Duke Energy Progress, LLC
NC0005363
Thomas Hanes, Station Manager
198 ENERGY WAY, HAMLET NC 28345

•
Water Resources
ENV1RONF1ENTAL OUALiTY
ROY COOPER
MICHAEL S. REGAN
S. JAY ZIMMERMAN
PERMIT NAME/OWNERSHIP CHANGE FORM
I. CURRENT PERMIT INFORMATION:
Permit Number: NC00 / / / / or NCG5 1 / / 1
A9 Duke Energy Progress LLC and Duke Energy Carolinas LLC
1. Facility Name:
II. • NEW OWNER/NAME INFORMATION:
1. This request for a name change is a result of:
a. Change in ownership of property/company
b. Name change only
X c. Other (please explain): Owner Affiliation Contact person
2. New owner's name (name to be put on permit):
No change to permit holder
3. New owner's or signing official's name and title: Paul DraOVItCh, P.E.
(Person legally responsible for permit)
Senior Vice President, EH&S
(Title)
4. Mailing address: 526 South Church Street -EC3XP City: Charlotte
State: NC Zip Code: 28202 Phone: ( ) 980-373-0408
E-mail address: [e-mail]
THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION UNLESS ALL OF THE
APPLICABLE ITEMS LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
REQUIRED ITEMS:
1. This completed application form
2. Legal documentation of the transfer of ownership (such as a property deed, articles of
incorporation, or sales agreement)
[see reverse side of this page for signature requirements]
State of North Carolina [ Environmental Quality 1 Water Resources
1617 Mail Service Center' Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
httpsa/deq.ne.gnv/aboutldivisio ns/waler-resources/water-resources-perm itslwastewater-branch/npdes-wastewater-permits

NPDES Name & Ownership Change
Page 2 of 2
Applicant's Certification:
Paul Draovitch , attest that this application for a
name/ownership change has been reviewed and is accurate and complete to the best of my
knowledge. I understand that if all required parts of this application are not completed and that
if all required su orting information and attachments are not included, this application
package wil a re rned'as1n omplete.
Signature: \ t - --O.- \
Date: '-f4` ! L7
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING
INFORMATION & MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDDRESS:
NC DEQ / DWR 1 NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Version 7/2016

`a+ direct r any ponders argue«6n5 m
[e
and Co m %once to Brad Loveland A 7O 9 5GJ2
Sin
Rick Roper
General Manager m
Marshall Steam Station
Power Generation Carolinas West
Cr:
ENV5O2
Erlergy
LIPS TRACKING: NCIDEQ (Mooresvillo Regional) qI± c:» m
Station NPDES Perm

Bell, Wes
-- From:- - : - Loveland; Brad P <Brad1oveland@duke-energy. n>- -
Sent: Thursday, May 18, 2017 4:11 PM
To: - Pitner, Andrew
Cc: Bell, Wes
Subject: Marshall Steam Station Follow Up
Andrew,
1 wanted to follow-up on the notification made via phone earlier today. At approximately 8:30am on 5/18/17, Marshall
Steam Station noted overflow of <1000 gallons of clear sanitary wastewater onto the pavement as a result to a blocked
gravity drain pipe. The water then collected into an adjacent wastewater drain, conveyed to the #1 yard sump and then
pumped to the ash basin (NPDES Outfall 002).
Marshall Station has restricted use of bathroom facilities, sinks and showers immediately following the discovery of the
overflow and alternate bathroom facilities have been provided.
Repairs to the sewage line are underway.
A 5 day follow up notification will be made per the NPDES permit NC0004987.
Let me know if you have questions or need additional information please let me know.
Thanks,
Brad
DUKE
ENERGY&
Brad Loveland, CPESC, CFM
EHS CCP- Permitting and Compliance
Environmental Health and Safety Department
526 South Church Street f EC13K I Charlotte, NC 28202
Office: 980 373 2820
Cell: 704 609 5637
1

IKE
March 21, 2017.
1t„ lti 0frefir t'l. Poupaui
Df '( .. I:y "VR,
ltr 7 Maail Se
Raleigh, North Carolina 7( 99- i 61 `
Subject: Seep Pollutant Analysis
Report submittal in accordance witb Permit. ("'audition
Marshall Steam Station - NPDES Permit NU0004987 - Catawba (.
Duke F.ratrgy°
�a ata�s'#e af1 Steam Swoon
329 East NC flv 4 150
"1`t.rrelt. NC"
Pursuant to Part 0, Con flitiaara a\:f30
demonstrate that the rater quaaiit st<uida
contravened d in the receiving stream. This rlc°uatanstraati i
effectieAe date of the subject permit using in -stream s areal
monitoring prcrgraataa. This submittal fulfills the retlttiremetat.
TWO Seeps at Marsha ll Steam Star
permitted as effluent leis to Li.
body (Lake Norr i) obtained from
February 2017, is provided as an aaua
Outfit!! 102 do not Casten: erns' tcautr°arse
A.(29).
If you have any questions,
704-600- 6,l7.
l'°A°fe a fb ere
Sincerely,
General Manager Ill
Marshall Steam Station
Attachment
Nurtnan. ✓'; s+
ta�tb�ra vases m
Outfit!! 10
to
uent.s listed in pet
s aa..a:aaairad tar be seal
atnplang to suits
t:aations ut f c:.<iaa"Ua
'(`here resitlts eta
hu ,1.luv°
requited to
(29) are not
days oldie
Alt the 1:3IF'
nd i tit .an.
ath of
t.he reee
urn that
esa
f rrrtrxrtsoarme nI
016 and
and
onditi•Ora
www.duke-energy.com

Cc: Serge: C. t t ttil ctr NC'1)F 'IF ))
1617 N1ai1 Sc:t ac a ; . nt
Ra l.eicA, NC 2 6<)t)_ lt` 17
Cc: We » Bell -NC l.)WR MRU
61 f11~ East Center' Are e Suite 301
'Moores eal] ^, NC 28115
Filet et
Ric tat '%1 Baker %1)atke Energy)
Brad Loveland tI)uke Fnert_=
Scou La Sala (1.)ttl,e I tter� 1
Shannon l..angle) (1)ttke Eno'
NCDEQ-DWR,) - IZ:8955X4 3 ttDl<S11
(NC D Q-Per fitting) _ 1Z8955X40965St.17„
.R. )) _ 1 /,`i955,\-1()„t9(5 63
Duke Energy
t$ rrsIrca/t Steam Station
8 29 fat NC Hwy t: 150
Terra, NC 2'6J
www.duke- erterno

ATTACI-1MENT 1
INSTREAM MONITORING RESULTS
MARSHALL STEAM STATION NIMES Permit NC0004.897
Condition A.(30) Iciompliance demonstration
MARCH 21,. 2017
il 1 0 1i**Cilliiin$*00: 0Oke Ncrrnpri_
.Marshall SS 2/1/2010 DCnknstreen
frAamhe 55 8/2/2iT16 — iirrel3r°
Isilart hall SS
Marshall SS 211/201'
/ ,Ocovniareari - 6 S • 0,0 ' el l <1
UpstrroT
.ion _OA
67.0,9,,o_ 1,00 . A • ,, 10.04(l, • 2s,o'i4A/L' ' <i:::1
68, 0071 : 11i1 1 70 _ 7011,
:7,0-
771 • 002
—
, ,,,,,,:;< ,,,A'A_ : ,,, A OtwAvad" :, 55,2.4:::10,., A "'0**.:.:.1'.1610.01,d .' 011solved 1531f, DisAorved ..1 RAmierable , Qhs.:011;e1t. A'505 ,:' :1t.14;i114t7,7:si'< ' 1'8)14: rt.lie,'
AtIlit l 44,1141,014441 1155,q,t,P1,41_411111511 lil (PO4 ' 15.5 " t.' 515.411145., '51 Atli , 56111114/5) idil4 1 'ti.tgiV fliat, :irtrit0, ' , Arit<' I A "14AA1C "
0.02
<.1 : <A Al.
'T 7
22222— . cadmh4m< .
<1 f..5
2' "150AN2.,, t#A
4.?,_ :,:, 65
41 . , ..T.,,,,,—,5.
throrrvuoi 5, co;,:"
3A . „
<1,
<1
<1
NiA !1.2<.0 rill< N/A I 5 urd'i
,, ,.0,87
el
3,70
1,80
el
01
.7,1
7' 2 7.4.
2
;23222 2 2222:22 1 254
2.22 22222i/A 2 22242Xi 220 .02 .122362712222
2222 2 .4.',7
MaiAlhallSS
Marshall SS yostroxin
IlIcArstream t —
0,02
002 el cll
<1, 2.22122 221 .2.22222 02?
.
.0,1
47 1.,,,,,,_ 707
1.• 7 4,7
ii,1
0,4 ,,—
.,, I,c13
00i, 011,11
0.8.3
1 i <1
'rng/L , Milligrams per liter (parts. ner million)
icigil_ : tnicrogram$ per liter Ipactii per Pillion1
nil - nelograrp5, per liter (parts per trilliani
WA 7 riP applicable 29 Standard for anolv2e0 conititunnt
113_,
1 .S
1111
• •
creor,ed b 13/1L
page 3 mf
www<loyAlmor.gyA:Arn

Loveland Brad P<B/ad.Loveland@dmke'energy.cmm`
Thursday, April 27'2O17]:Z4PM
Pitner, Andrew
[hernikov, Sergei
RE: Marshall Sewage Lagoon Closure
Marshall Sewage Lagoon C|osurexjocx:Letter from Duke to K1RO re closure ofdomestic ww
lagoon Oct 272OI6.pdf
Andrew'
| wanted Toupdate you tolet you know this project iscomplete, Marshall isconnected toCity Sewer and the sewage lagoon �s
permanently closed,
Attached are photnstaken during the process of this dosure operation to use as a reference.
Let, meknow ifyou need anything further,
Thanks,
Brad
DU E
Brad Loveland, [PES[ [FM
EHSC[P-Permitting and [ompUance
EnOronnnenta|Health and Safety Department
526 South Church Street | E[1]K ! Charlotte, N[ 28202
Office: 9803732820
Fromm:Pitner Andrew andrev»[e-mail]]
Sent: Wednesday, March 2Z,Z01712:O5PM
To: Loveland, Brad P
Subject: RE: Marshall Sewage Lagoon Closure
Exercise caution, — This is an EXTERNAL email.— ---- NOT —r~~-''
��_^ ��r�� � click links ��~� �� ,�f�^�� ^�
attachments . .��[l�� ��� C�/���� H�m� from ��������� ���M����� ��� ������K���^~o�u ������U _ _ __. ._ -_. � � unexpected email.
.,� -
You sure about that date?
From: Loveland, BradP[����8�.L�|an
Sent: Wednesday, March 22'2Q17lJ�[BPk4
To�P|tner,Andrew <andrew,pitmer@ncdengq2v>
Subject: Marshall Sewage Lagoon Closure
Andrew,
| had ManshaUSteam Station mail you a package that was delivered n|youroffice on I0/27/I7, This was the closure letter
submitted for sewage lagoon at Marshall,
| can't find it anywhere and hoping you cou|d help me out.
Thanks in advance,

DUKE
ENERGY
Brad Loveland, CPESC, CFM
EHS CCP - Permitting and Compliance
Environmental Health and Safety Department
526 South Church Street I EC13K I Charlotte, NC 28202
Office: 980 373 2820
Cell; 704 609 5637
2

Marshall Sewage Lagoon Closure
Lagoon solids removal
Containr ent for dewatering bag
Pressure washing liner
Solids Removal
Dewatering bag inside container
Pressure washer

Liner Removal
Removing top soil from curbing
Partially filled
Inlet pipe removal
Partially filled
Dewatering bag in containment

Continuing to fill the lagoon
Completely filled and compacted
patting soil

PrDUKE
ENERGY.
CAROLINAS
October 20, 2016
ECE ELEVEN EDE :N WEENT4
VIECE,i(E:;
MOORESViLLE EoRIMA L it
Attn: Andrew Pitner
North Carolina Dept. of Environmental Quality
610 East Center Ave Suite 301
Mooresville, NC 28115
Subject: Duke Energy Carolinas, LIC,
Notice of Closure of Wastewater treatment system
Marshall Steam Station (NC0004987) — Catawba County
Dear Mr. Pitner,
EFIS CCP Environmental Programs
Duke Energy
526 South Church Street
Charlotte, NC 28202
Mailing Address;
EC t3K P,C). Box 1006
Charlotte, NC 28201-1006
In accordance with the requirements of Part III of NPDES wastewater permit NC0004987, Duke Energy is hereby
providing notice of closure for a wastewater treatment system at Marshall Steam Station in Catawba County, NC.
Duke Energy will be closing the Biological Wastewater Lagoon System used to treat domestic wastewater.
Upon closure of the wastewater lagoon, domestic wastewater from the Steam Station will be sent to the municipal
system owned and operated by Catawba County.
Start-up and commissioning of the planned wastewater lift station to send wastewater to the municipal system of
Catawba County is scheduled for December 2016 with proposed wastewater lagoon closure activities scheduled to
begin in January 2017.
The domestic wastewater lagoon closure activities include a complete Site Reclamation.
Remaining lagoon liquid will be sent to a publically owned treatment works (POTW) for disposal.
Sludge removal and disposal will also be discharged to a permitted facility. No sludge will be left
in place. The lagoon liner will be disposed of at a permitted facility.
The area where the domestic wastewater lagoon is currently located will be re -purposed to locate
components for handling bottom ash to comply with various environmental requirements.
Please direct any correspondence or questions concerning the Marshall Steam Station NPDES Permitting and
Compliance to Brad Loveland @ 704-609-5637.
"1 certify, under penalty of law, that this document and all attachments were ,prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.
Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the
information, the Information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware
that there are significant penalties for submitting false information, Including the possibility of fines and imprisonment for
knowing violations."
Rick Roper
General Manager III
Marshall Steam Station
Power Generation Carolinas West
CC: Brad Loveland
Scott LaSala

Y7' ENFRCY
SOUIr SOcet;
NR::, 26202
,BacoNN,B,
B e NC a32 -1 Cg.)13
October 12, 2016
North Carolina Dept. of Environmental Quality
Attention: Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
Removal of outfall
Marshall Steam Station (NCS000548) - Catawba County
In accordance with Part II of the above reference Stormwater Permit Duke Energy Carolinas, LLC is
hereby notifying DEQ in writing that former Stormwater Outfall 001/001A has been deemed an effluent
channel, therefore monitoring requirements for storm water activity will no longer apply. Effluent
channel designation was determined by NCDEQ and noted in the NPDES Waste Water Permit
NC0004987 as ()Wall 102. Monitoring will continue per Waste Water Permit requirements effective
10/1/2016 See attached map showing Storm Water Outfall, Waste Water Outfall and Effluent Channel
Please direct any correspondence or questions concerning the Marshall Steam Station NPDES Permitting
and Compliance to Brad Loveland ( 704-609-5637.
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel properly
gather and evaluate the information submitted. Based an my inquiry of the person or persons who
manage the system, or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware that
there are significant penalties for submitting false information, including the possibility of fines and
imprisonment for knowing violations.'"
Rick Roper
General Manager III
Marshall Steam Station
Power Generation Carolinas West
attachment
CC: Brad Loveand
Tina Woodward
Erika Tuchbaum
UPS Tracking - DWR IZ895X40399.4)8347

4-1.7,11
•
,
r 1
1
1,f
t if
Gicioste:,earth
1
2'1
3
STORMWATER OUTFALL MAP
swopiiswooiALocation
Marshall Steam Station
Catawba,County, NC
Permit #NCSQ00548
Legehd
Ash Pond
indiistrial SW Outfall 001/001A
NPDESWW Outfall 102
cto Outfall Flow Path
ustri a I .SW I I 0 () lino 1,3,
co! P D ES \V \V @Leal' I 02
A
N
1 00 ft

UPS CampusShip: Shipment Label Page 1 of 1
UPS CampusShip: View/Print Label
1. Ensure there are no other shipping or tracking labels attached to your package. Select the
Print button on the print dialog box that appears. Note: If your browser does not support this function
select Print from the File menu to print the label.
2. Fold the printed label at the solid line below. Place the label in a UPS Shipping Pouch. if you do
not have a pouch, affix the folded label using clear plastic shipping tape over the entire label.
3. GETTING YOUR SHIPMENT TO UPS
Customers with a Daily Pickup
Your driver will pickup your shipment(s) as usual.
Customers without a Daily Pickup
Take your package to any location of The UPS Store®, UPS Access Point(TM) location, UPS Drop
Box, UPS Customer Center, UPS Alliances (Office Depot® or Staples®) or Authorized Shipping Outlet
near you. Items sent via UPS Return Services(SM) (including via Ground). are also accepted at Drop
Boxes. To find the location nearest you, please visit the Resources area of CampusShip and select
UPS Locations.
Schedule a same day or future day Pickup to have a UPS driver pickup all your CampusShip
packages.
Hand the packae to any UPS driver in your area.
UPS Access Point
THE UPS STORE
516-DRIVER HWY
MOORESVILLE ,NC 28117
FOLD HERE
w
O
1111111
ILLING: P/P
https://www.campusship.ups.com/cship/create?ActionOriginPair=default PrintWindo... 10/11/2016

From:
To:
Subject:
Date:
UPS Quantum View
La Sala, Joseph Scott
UPS Delivery Notification, Tracking Number 1Z8955X40399478347
Friday, October 14, 2016 10:43:43 AM
*** Exercise caution. This is an EXTERNAL email. DO
NOT open attachments or click links from unknown
senders or unexpected email. ***
Your package has been delivered.
Delivery Dater
Delivery Time:
Friday, 10/14/2016
10:38 AM
At the request of DUKE. ENERGY CAROLINAS, this notice alerts you that the status of the shipment listed
below has changed.
Shipment Detail
Tracking Plumber:
Ship To:
UPS Service:
Number of Packages:
Weight:
Delivery Location:
Signed by:
Reference Number 1:
Reference Number 2:
OIT
L1®I
1X8955)(40399478347
Attn: Central Files
NC. Dept. of Environmental Quality
3905 REEDY CREEK RD
RALEIGH, NC 27607
US
UPS GROUND
1
1.0 LBS
MAIL ROOM
WILLIS
MS00
20003
Get the UPS My Cholce.app for Facebook
Download the UPS mobile apo

Bell, Wes
From:
Sent:
To:
Subject:
Just FYI...
Pitner, Andrew
Tuesday, November 15, 2016 12:10 PM
Costner, Brandy F; Bell, Wes; Basinger, Corey
FW: Follow up request to October 6 letter
From: Poupart, Jeff
Sent: Thursday, November 10, 2016 4:02 PM
To: Langley, Shannon <[e-mail]>
Cc: Chernikov, Sergei <[e-mail]>; Baker Jr, Richard E <[e-mail]>; Pitner,
Andrew <[e-mail]>; Loveland, Brad P <[e-mail]>
Subject: RE: Follow up request to October 6 letter
DWR concurs with Duke Energy's interpretations below as restated from October 6 letter regarding; floating pumps and
intakes, DIP sampling frequency, flow measurement and sampling coordinates.
1. The Marshall NPDES permit condition limiting ash basin drawdown to three feet above the ash refers to the
point where the pump suction is located and not three feet above the ash in the entire basin. Additionally,
any references to "floating pumps" in our permits refers to "floating intake suction points". Duke requests
concurrence with this interpretation and that this interpretation be applicable to all of our NC coal fired
facilities.
2. Duke requests concurrence that once the permit is issued, that separate samples referenced in the DIP are
not required as Duke will be taking seep samples monthly/quarterly under the terms of the permit. Also,
in accordance with our SOP's and terms developed in the DIP, Duke will not be taking any seep samples
under the NPDES permits within 72 hours of a rainfall event of greater than 0.5 inches or within 48 hours of
a rainfall event of greater than 0.1 inches.
3. Duke request that DEQ review and approve the alternate flow measurement procedure provided as an
attachment to our Oct 6 letter and this email, as a method that can be used to measure seep flows at any of
our sites with requirements to measure and report seepage flows.
4. Duke requests that concurrence with the sampling coordinates identified in our attached letter. As
discussed in our letter, these points are the areas determined to be representative access points within the
designated effluent channels.
From: Langley, Shannon jmailto:Shannon.Langlev@ duke-energy.comj
Sent: Wednesday, October 19, 2016 8:25 AM
To: Poupart, Jeff <[e-mail]>
Cc: Chernikov, Sergei <[e-mail]>; Baker Jr, Richard E<[e-mail]>; Pitner,
Andrew <[e-mail]>; Loveland, Brad P <[e-mail]>
Subject: Follow up request to October 6 letter
Jeff,
i

As discussed in our 10/11/16 meeting, this email note is provided to request concurrence with several items listed in the
attached letter sent to you dated October 6, 2016. This email is intended to make it easier to respond. Duke requests
concurrence with the following items:
1. The Marshall NPDES permit condition limiting ash basin drawdown to three feet above the ash refers to the
point where the pump suction is located and not three feet above the ash in the entire basin. Additionally,
any references to "floating pumps" in our permits refers to "floating intake suction points". Duke requests
concurrence with this interpretation and that this interpretation be applicable to all of our NC coal fired
facilities.
2. Duke requests concurrence that once the permit is issued, that separate samples referenced in the DIP are
not required as Duke will be taking seep samples monthly/quarterly under the terms of the permit. Also,.
in accordance with our SOP's and terms developed in the DIP, Duke will not be taking any seep samples
under the NPDES permits within 72 hours of a rainfall event of greater than 0.5 inches or within 48 hours of
a rainfall event of greater than 0.1 inches,
Duke request that DEQ review and approve the alternate flow measurement procedure provided as an
attachment to our Oct 6 Metter and this email, as a method that can be used to measure seep flows at any of
our sites with requirements to measure and report seepage flows.
4. Duke requests that concurrence with the sampling coordinates identified in our attached letter. As
discussed in our letter, these points are the areas determined to be representative access points within the
designated effluent channels.
Thanks. Please let me know if any of these items need clarification or further discussion.
Shannon
0C $, wnn©n Otantyla#
Lead Environmental Specialist
Duke Energy Corporation.
Office: [phone]
Cell: [phone]
410 South Wilmington 15th floor, Raleigh, NC 27601
DUKE
2

DUKE
ENERGY.
CAROLINAS
is C I 3P i=',C,i l c5r i€ ii
Ic. fit?6. NC 28201-1006
October 20, 2016
Attn: Andrew Pitner
North Carolina Dept, of Environmental Quality
610 East Center Ave Suite 301
Mooresville, NC 28115
Subject, Duke Energy Carolinas, LLC.
Notice of Closure of Wastewater treatment system
Marshall Steam Station (NC0004987) — Catawba County
Dear Mr. Pitner,
In accordance with the requirements of Part III of NPDES wastewater permit NC0004987, Duke Energy is hereby
providing notice of closure for a wastewater treatment system at Marshall Steam Station in Catawba County, NC,
Duke Energy will be closing the Biological Wastewater Lagoon System used to treat domestic wastewater.
Upon closure of the wastewater lagoon, domestic wastewater from the Steam Station will be sent to the municipal
system owned and operated by Catawba County,
Start-up and commissioning of the planned wastewater lift station to send wastewater to the municipal system of
Catawba County is scheduled for December 2016 with proposed wastewater lagoon closure activities scheduled to
begin in January 2017.
The domestic wastewater lagoon closure activities include a complete Site Reclamation.
Remaining lagoon liquid will be sent to a publically owned treatment works (POTW) for disposal.
Sludge removal and disposal will also be discharged to a permitted facility, No sludge will be left
in place. The lagoon liner will be disposed of at a permitted facility.
The area where the domestic wastewater lagoon is currently located will be re -purposed to locate
components for handling bottom ash to comply with various environmental requirements.
Please direct any correspondence or questions concerning the Marshall Steam Station NPDES Permitting and
Compliance to Brad Loveland @ 704-609-5637,
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervlsa`on in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.
Based an my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1 am aware
that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for
knowing vioiatiorts.
Rick Roper
General Manager III
Marshall Steam Station
Power Generation Carolinas West
CC: Brad Loveland
Scott LaSala

Bell, Wes
From: Pitner, Andrew
Sent: Monday, July 11, 2016 2:02 PM
To: Loveland, Brad P
Cc: Bell, Wes; Basinger, Corey
Subject: RE: Marshall #1 Yard Sump - Permitted Civil Overflow, 7/7/16
The highlighted info appears to be accurate; no additional steps need to be taken. Thanks for the heads up.
Andrew
From: Loveland, Brad P [mailto:[e-mail]•
Sent: Friday, July 08, 2016 8:53 AM
To: Pitner, Andrew <[e-mail]>
Subject: FW: Marshall #1 Yard Sump - Permitted,Civil Overflow, 7/7/16
Good morning Andrew,
My understanding is that this is non reportable but rather just an FYI. See highlighted areas below and please advise an
any additional steps that need to be taken if any.
By the way, were you able to visit Riverbend yesterday?
Thanks,
Brad
DUB:.
EN
Brad Loveland, CPESC
EHS CCP- Permitting and Compliance
Environmental Health and Safety Department
526 South Church Street I EC13K I Charlotte, NC 28202
Office: 980 373 2820
Cell: 704 609 5637
From: La Sala, Joseph Scott
Sent: Thursday, July 07, 2016 3:07 PM
To: Loveland, Brad P
Cc: Scruggs, Don; Roper, Rick R; Tuchbaum, Erika B;. Parks, Scott; Garver, Scotty P; Young, Sherri Wegner; Cornelius Jr,
Ernest J; Hynes, Jennifer Dilworth
Subject: Marshall #1 Yard Sump - Permitted Civil Overflow, 7/7/16
Brad,
Per our discussion this morning,'I am following up with a summary of this morning's permitted civil overflow from the
#1 Yard Sump at Marshall. At 0430 I received a phone call from operations indicating that the civil overflow alarm had
been achieved and that the gate valve (newly installed Priority 1 improvement) needed to be opened to allow permitted
discharge. After verifying with operations that no visible oil sheen was present on the sump water, I approved their
opening of the gate valve which initiated time To for the civil discharge.
I arrived onsite and inspected the sump at 0510. The gate valve was found in the open position and there was no water
discharging to the civil effluent pipe. Estimates from operations indicate that flow was less than 0.5-inch over the civil
overflow wall while discharging. After meeting with operations team, I returned to the sump at 0520 and noted flow
1

over the civil wall beginning to return. Discharge remained less than 0.5-inch in height for three additional episodes
totaling 10 minutes before pumping was re-established by Scott Garver and Scott Parks.
We estimate the maximum civil overflow time to be 50 minutes with a maximum measured elevation over the wall at
0.5-inch. The #1 yard sump is rated at 69.81 gpm discharge at 0.5-inch in water above the wall. Consequently, our
maximum estimated discharge from this morning's overflow is 3,500 gallons.
l$ rtd tr n a ntl eacNng the F i r d sch thr.
In response to this permitted discharge, I am uploading the flow rate (0.0035 GPD) to our
To my understanding, there is no additional reporting to the state required
and, per our discussion, en environmental went. I le a e confirm thatthis I accurate.
roe
I appreciate everyone's help this morning.
Thanks,
Scott
J. Scott La Sala, P.G.
Sr. ENS Professional Marshall Steam Station
Office 828,478,7820 I Mobile 904,631.8442
8320 East NC HWY 150
Terrell, NC 28682
[e-mail]
DUKE
'les 'ENERGY.
cm CA N A

KEG
E RGY
A. OL1 A5
March 14, 2016
North Carolina Department of Environment and Natural Reso
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1.617
Subject: Duke Energy Carolinas, LLC
Marshall Steam Station (NPDES Permit NC000iiii0
Groundwater Quality Monitoring: Compliance Report Form
Dear Sir or Madam:
Duke Energy Carolinas, LLC. (DEC) sampled the twelve compliance wells around the ash basins at the
Marshall Steam Station (NPDES Permit 'NC0004987) on February 4, 2016, Attached are two copies o
the ,results on DEC, approved electronic version of Form GW-59CCR.
All values reported on the attached reports are dependent on the accuracy of approved analytical
methods used to measure parameters. Should you have questions regarding this report, please contact
Tyler Hardin at [phone],
f ceriif, under penalty of law, that this document and all attachments were prepared under my direction
or supervision in accordance with o system designed to assure that qualified personnel properly gather
and evaluate the information submitted, Based on my inquiry of the person ar persons who manage the
system, or those persons directly responsible for gathering the information, the information submitted is,
to the best of my knowledge and belief, true, accurate,, and complete, I am aware that ther-r are
significant penalties for submitting false information, including the possibility of fines and imprisonment
for knowing violations.
Sincerely,
Rick R, Roper
GM I! Regulated Stations
Marshall Steam Station
cc: Debra Watts

E
E E GY
CAR O l,, iN A S
Addresses:
State of North Carolina
Department ofEnvironmental Quality
Division of Water Quality
Information Processing Unit
16,17 Mail Service Center
Raleigh, North Carolina 27699-1617
Debra Watts
Division of Water Resources
North Carolina Department of Environment& Quality
512 N. Salisbury Street
Raleigh, NC 27699-1363
919-807.6338
Internal cc: Kim Witt
Tyler Hardin
Ed Sullivan
Christopher Randazzo
Tim Russell
Tim Hunsucker
Scott La Sala
Erika Tuchbaum
Rick Roper
Catherine Butler
NCDEQ UPS - 1.Z8955X403977O5327
DWATTS UPS- 1Z8955X40399640938

GROUNDWATER QUALITY MO I tTO
COMPLIANCE REPORT F RM
F° t tit I9 utt (if difterent�;
Fcll1t t AdtIr+PSs:
1 ae61 itet9t Ifi Irulsws lattd surf
MeasuN'n q, Pal�
Well Diameter
Screen Top ,,ti be
Sere en ttdettaEn If
Relative Aitposirrsrri Point Elevation
Specrff't: Co asd - fitelti (tidttlS4
Water" Le
Analysis Date
AT TIME OF SAR' 3PUN
n(82S4
FS - Tmxtll C%- Staa (703f8
CI, Chtorvd ( 941
As - ArSenit. [02DCR2)
504-SuHa1e(t4S)
Nitrate NO3() ns N (00E20)
CdCadmium (01027)
Cr, Chromium (01034)
Cu - Copper (01042) ..
he • Froat (D 104S)
&#p w SiercurX490l ...
ts4ea,,., +Tang:"ct+ese (410SS)
.....,_ � AIkallnity. (00410) �...�_
A(01105 )
012)
tS-7cffie'Suzsp.Solids
stadium (01.087)
IISA-21.
per fA
s$fuarizetl
IMACs noted on the
A
Iti tlrs.0 dnat P S" k�..rC7a3PY�Y'dat E"C
rt1rcted rtsxr%alltorod:
and field acidified:

Water Resources
ENVIRONMENTAL QUALITY
March 4, 2016
CERTIFIED MAIL 7013 2630 0001 8998 4247
RETURN RECEIPT REQUESTED
Mr. Harry K. Sideris, Senior Vice President - Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
PAT MCCRORY
Governor
DONALD R, VAN DER VAART
secretary
S. JAY ZIMMERMAN
Director
MRCS
MOORESEELLE REGIONAL OPPICE
SUBJECT: Notice of Violation and Recommendation of Enforcement for Violations of
NCGS 143-215.1(a) — Unauthorized Discharge of Wastewater
NOV-2016-DV-0098
Duke Energy Carolinas, LLC — Marshall Steam Station WVVTP
Catawba County
Dear Mr, Sideris:
This letter transmits a notice of violation and recommendation of enforcement for violations of the subject
general statute. Review of submitted documents and other records indicates there are unauthorized discharges
of wastewater from the area around the subject facility's coal ash basin, Please note that additional violations
may be identified should these discharges be found to have caused exceedances of water quality standards,
This letter is to advise you that the Division of Water Resources (DWR) is considering the issuance of civil
penalties to address these violations. If you have any explanation or mitigating information that you wish to
present that may be considered during the determination of any civil penalty assessment, you are requested to
present such materials to DWR within thirty (30) days of your receipt of this letter. Please send your response
to the attention of Bob Sledge at the letterhead address.
Thank you for your prompt attention to this matter. If you have any questions about this letter, please contact
me at [phone].
Sincerely,
Jeffrey O. Poupart
Water Quality Permitting Section Chief
cc: Mooresville Regional Office — Water Quality Regional Operations
NPDES Compliance/Enforcement Files
Central Files
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-707-9000

Division of Water Resources
November 19, 2015
iO 1DUlvi
To: Michael Parker
Water Quality Regional Operations, MRO
Through: Cindy A. Moore
From:
Supervisor, Aquatic Toxicology Branch (ATB)
Carol Hollenkamp �++
Quality Assurance fi
er, Aquatic Toxicology. Branch (ATB
Subject: Whole effluent toxicity test results
Duke Energy Marshall Steam Station
NPDES Permit # NC0004987/002
Catawba County
The aquatic toxicity test using grab samples of effluent discharged from the Duke Energy Marshall Steam
Station has been completed. Duke Energy Marshall Steam Station has a permitted effluent discharge of
5.3 million gallons per day (MGD) entering the Catawba River (7Q10 of 60 CFS). Whole effluent
samples were collected on November 3rd and November 5th by Wes Bell and facility representative Scott
LaSala for use in a chronic Ceriodaphnia dubia pass -fail toxicity test. This test passed. Toxicity test
information follows.
Test Type 3-Brood Ceriodaphnia dubia chronic pass fail
Test Concentrations 12%
Test Result Pass
Control Survival 100%
Control Mean Reproduction 30.7 neonates
Test Treatment Survival 100%
Treatment Mean Reproduction 32.9 neonates
First Sample pH 7,05SU
First Sample Conductivity 959 micromhos/cm
First Sample Total Residual Chlorine <0.10 mg/L
Second Sample pH 7.25 SU
Second Sample Conductivity 1045 micromhos/cm
Second Sample Total Residual Chlorine <0.10 mg/L
Test results for the above samples indicate that the effluent would not be predicted to have water quality
impacts. These samples were split with Environmental Testing Solutions, Inc. The test conducted by
Environmental Testing Solutions, Inc., also passed. Please contact us if you have any questions or if
further effluent toxicity monitoring is desired. We may be reached at [phone].
Basin: CTB32
cc: Central Files
Wes Bell (MRO)
Aquatic Toxicology Branch Water Sciences Section

Bell, Wes
From: Hollenkamp, Carol
Sent: Thursday, November 19, 2015 1:22 PM
To: Parker, Michael
Cc: Bell, Wes; Moore, Cindy
Subject: Toxicity Test Reports
Attachments: Duke Allen Steam Station_1015.pdf; Duke Marshall Steam Station_1115.pdf
Attached are the toxicity test reports for Duke Energy Allen and Marshall Steam Stations. If you have any questions,
please let me know.
Thanks,
Carol Hollenkamp
Environmental Specialist
Aquatic Toxicology Branch/Water Sciences Section/Division of Water Resources
Department of Environmental Quality
919-743-8440 office
[e-mail]
Mailing: 1623 Mail Services Center, Raleigh, NC 27699-1623
Physical: 4401 Reedy Creek Road, Raleigh, NC 27607
othfng Compares.--,. .,.
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
1

North Car©l na Department of Environmental Qua.
Pat McCrory Donald van derVaart
Governor Secretary
November 10, 2015
Mr. Rick Roper, General Manager III
Duke Energy Carolinas, LLC
8320 E NC 150 Hwy.
Terrell, North Carolina 28682
Subject: Compliance Biomonitoring Inspection
Duke Energy Carolinas/Marshall Steam Station
NPDES Permit No. NC0004987
Catawba County
Dear Mr. Roper:
Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the
subject facility on November 3, 2015 by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -
Responsible (ORC) of our findings by forwarding a copy of the enclosed report. The results of the effluent toxicity
samples collected on November 3 and 5, 2015 will be forwarded to you under separate cover.
The report should be self-explanatory; however, should you have any questions concerning this report, please
do not hesitate to contact Mr. Bell at [phone] or at wes.bellOencdenr.gov.
Sincerely,
Michael L. Parker, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosure:
Inspection Report
cc: MSC 1617-Central Files/Basement
Catawba County Health Department
Mooresville Regional Office
Location° 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: (704) 663%1699 \ Fax: [phone] \ Customer Service:1-877-623-6748
Internet: www,ncwaterquality.org
An Equal Opportunity \ Affirmative Action Enmptoyer - 30% Recycled/ 10% Post Consumer paper

I
EPA
United States Environmental Protection Agency
Washington, Q.C. 20480
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yrlmolday Inspection Type Inspector Fac Type
1 L.1 2 L=J 3 1 NC0004987 111 121 15111/03 117 18 (o i 19 11.1 201 1
211111II 11IIll1 1111111111111L111 11111111111166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
67 12.Q 70 (d 1 71 ir, I 72 1 ti 1 731 1 174 751 1 I I 1 I 1 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Marshall Steam Station
NC Hwy 150
Terrell NC 28682
Entry Time/Date
09:20AM 15/11/03
Permit Effective Date
11103101
Exit Time/Date
01:40PM 15/11/03
Permit Expiration Date
15/04/30
Name(s) of Onsite Representative(s)/Tities(s)/Phone and Fax Number(s)
1r1
Gregory Paul Philrps/ORC/828-478-7805/
Joseph Scott La Sala1EHS Professional Sd828-478-7820 /8284787776
Name, Address of Responsible Official/Title/Phone and Fax Number
Rick Roper,8320 E NC 150 Hwy Terrell NC 28682/General Manager I111828-478-76001
Contacted
No
Other Facility Data
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
▪ Permit • Flow Measurement Operations & Maintenance 111 Records/Reports
▪ Self -Monitoring Program 1. Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
• Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspe or(s) Agency/Office/Phone and Fax Numbers Date
Wes 8011 MRO WQIf704 663-1699 F_x12192/ 1 / 9 715
Signature of Management Q A Reviewer
Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editians are obsolete.
Page# 1

NPDES
NCt}o@4987
yrlmo/day
12 15/11/03
Inspection Type
18 t l
Se 'a C7: Summary of Finding/Comments (Attach additional sheets of natt'ative and checklists as necessary)
Page* 2

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 11103/2015 Inspection Type: Bioassay Compliance
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
III ❑ ❑ ❑
▪ ❑ ❑ ❑
•❑ ❑ ❑
• ❑ ❑ ❑
111 ❑ ❑ ❑
Comment: The Division received the permit renewal package on 12/19/2014.
No biocides are added to Outfalls 001 and 003 (once through non -contact cooling water).
The last compliance evaluation inspection was performed at the facility on 12/18/2013.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? • ❑ ❑ ❑
Is all required information readily available, complete and current? • ❑ ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)? • ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs? • ❑ ❑ ❑
Is the chain -of -custody complete? • ❑ ❑ ❑
Dates, times and location of sampling •
Name of individual performing the sampling 111
Results of analysis and calibration �
Dates of analysis •
Name of person performing analyses •
Transported COCs •
Are DMRs complete: do they include all permit parameters? •❑ ❑ ❑
Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ 1 ❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24R with a certified operator ❑ ❑II El
on each shift?
Is the ORC visitation log available and current? • ❑ ❑ ❑
Is the ORC certified at grade equal to or higher than the facility classification? • ❑ ❑ ❑
is the backup operator certified at one grade less or greater than the facility classification? • ❑ ❑ ❑
Is a copy of the current NPDES permit available on site? MOOD
Facility has copy of previous year's Annual Report on file for review? ❑ ❑ � ❑
Page# 3

Record Keeping
Owner - Facility: Marshall Steam Station
Inspectkon Type. Bioassay Compliance
Yes No NA NE
Comment: The records reviewed durin the in coon were onized nd w it maintained. Di char e
Monitorinq`Reports (DMRs) were reviewed for the period September 2014 through,August
2015. No limit. violations were reported and all monitoring frequencies were correct. The
facility staff must ensure that the collection and analysis times for the effluent pH
measurements (Outfall 002) are documented.
No discharges were reported from © utfalls 002A and 002B (yard sump overflows) during the
review period.
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed by a certified lab?
# Is the facility using a contract lab?
# Is proper temperature set for sample storage (kept at
Celsius)?
Incubator (Fecal Coliform) set to 44,5 degrees Celsius+l 0,2 degrees?
Incubator (B0Q) set to 20.0 degrees Celsius +l- 1.0 degrees?
s than or equal to 6.0 degrees
Ve No NA NE
II ❑0
■ ❑ ❑ ❑
❑ ❑
IN ❑ ❑
❑ IN ❑
❑ ❑ ■ ❑
Comment: The facility is certified to perform on -site field analyses (pH and temperature) under
laboratory certification #5155. Duke Energy's Environmental Services Laboratory.
Certification #248 and the contracted services of Sheal Environmental Services tnc. low
level mercury) and ETS, Inc. (toxicity) provide analytical support,
The pH meter appeared to be property calibrated and documented. This office recommends
including the buffer value (following standardization) along with the millivolt reading as part of,
the pH meter calibration data.
Influent Sampling
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# is proper temperature set for sample storage (kept at less than or equal to 6,0 degrees
Celsius)?
Is sampling performed according to the perrnif?
Comment: The subiect permit requires grab samples at the internal Outfatt 004 (F
effluent) prior to entering the ash basin.
E a uent Sarnlplinq
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
D
Yes No NA NE
❑ ❑ � ❑
N. ❑ ❑ ❑
MI 0 El 0
❑ ❑ ■ ❑
❑ 0 II ❑
■ ❑ ❑ 0
eatment system
Yes N4 NA N
❑ ❑ ■ ❑
■ ❑ ❑ 0
• D ❑ ❑
Page# 4

Permit: NC0004987
Inspection Date: 11/03/2015
•
Owner - Feallity: Marshall Steam Station
Inspection Typo: Bioassay Compliance
Effluent Sampling
is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
Comment: The subject permit requires effluent grab samples.
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
Yes No NA NE
❑ ❑ ❑
❑ ❑MI ❑
❑ ❑ ❑
Yes No NA NE
• ❑ ❑ ❑
❑ ❑ � ❑
Comment: The ash basin and FGD wastewater treatment system (WTS) appeared to be properly
operated and well maintained. The FGD WTS is connected to a computer monitoring
system to assist the on -site staff in the operation of the treatment units/processes.
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting? ❑ 0 ❑
Is flow meter calibrated annually? 0 ❑ • 0
Is the flow meter operational? ❑ 0 � ❑
(If units are separated) Does the chart recorder match the flow meter? 0 0 • 0
Comment: Outfall 001 flows are measured by pump curves/logs. Outfall 002 flows are measured by
staff guage/elevation readings and supporting flow calculations.
The flow measurement system for FGD WTS effluent (Internal Outfall 004) is
calibrated/verified annually and was last calibrated/verified on 5/15/2015 by Duke Energy's
Instrumentation Group.
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Yes No NA NE
II ❑ ❑ ❑
■ ❑ ❑ ❑
Comment: The effluents for Outfalls 001, 002 and 003 appeared clear with no floatable solids or foam.
The receiving stream did not appear to be negatively impacted. Fish were observed at the
stop loq tower for Outfall 002 and the discharge outfall for Outfall 001.
DWR staff split effluent chronic toxicity samples with the facility on 11/3/2015 and 11/5/2015.
The results will be forwarded under separate cover.
Solids Handlinq_Equipment
Is the equipment operational?
•
Yes No NA NE
❑ ❑ ❑
Page# 5

Permit: NC0004987
Owner • Facility; Marshall Steam Station
Inspection Date; 11/03/2015 Inspection Type: Bioassay Compliance
Solids Handling Equipment
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Yes No NA NE
▪ ❑ ❑ ❑
• ❑ 1 ❑
❑ ❑ ❑ ■
❑ ❑ ❑ ■
El 0 El
■ ❑ ❑ ❑
Comment: The FGa WTS is equipped with two operational filter presses; however, these units were
not in service at the time of the inspection. The dewatered sludge and fly ash are disposed.
at the on -site landfill. The sluiced ash is either disposed in the on -site landfill or reused in
the construction market. The gypsum material from the FG© WTS system is also reused
by an outside company .(National Gypsum) in the dry wall market
Page# 6

Bell, Wes
From: La Sala, Joseph Scott <[e-mail]>
Sent: Thursday, November 05, 2015 12:03 PM
To: Bell, Wes
Cc: Phillips, Greg
Subject: FW: Ash Pond GWR Transmitter Calibration Requirements or recommendation
Wes,
Per our discussion today, I am forwarding you a response to our inquiries regarding calibration requirements on the
basin water level indicator at 002 as well as Prism's quarterly sampling procedure for O&G. A response from the water
level indicator vendor (provided below) indicates that this technology does not require calibration once it is emplaced
and the output data stream is set relative to the benchmark (spillway tower). What I recommend we do is provide a
gauge reading and meter output reading on a monthly form in the file to document that we are verifying accuracy of the
indicator. Secondly, l spoke with Prism and the sampling tech indicated to me that the samples are collected directly
into a glass jar and they are not using a plastic intermediary container for dipping the grab sample.
It was a real pleasure meeting you this week. Please let me know if there is anything else I can help you with.
Thanks,
Scott
J. Scott La Sala, P.G.
Sr. EHS Professional i Marshall Steam Station
Office 828.478.7820 i Mobile [phone]
8320 East NC HWY 150
Terrell, NC 28682
Joseph. LaSalaaDuke-Energy.com
4 ENGY.
C ROLINA5
From: Marshall, Tim
Sent: Wednesday, November 04, 2015 7:32 AM
To: La Sala, Joseph Scott
Cc: Wolfe, Kris S; Marshall, Tim
Subject: Ash Pond GWR Transmitter Calibration Requirements or recommendation
Scott,
See Emerson's response below relative to your question about calibrating the Ash Pond Level
transmitter.
Let me know if you need anything further.
gcsse_ 7IIxr.AGI►1
Marshall Steam Station
t

Duke Energy Corporation
8320 East NC H ►y 150
Terrell, NC 28682
828-478-7769 office
704-664-0429 cell
tirn,marshall(cduke-energy.com
DUKE
ENERGY.
CAROLINAS
From: Briani!!icNitta.ernerson,corn [niai0to Brian.McI itt' nerson.com]
Sent: Tuesday, November ©3, 2015 11:37 PM
To: Marshall, Tim
Cc: Wolfe, Kris S; Christenbury, Chris III
Subject: RE: GWR Transmitter Calibration Requirements or recommendation
#4* Exercise caution, This is an EXTERNAL erroail. DO NOT open attachments or click links fro
unknown senders or unexpected email. ***
Tim,
One of the nice things about radar level transmitters is there is no need to calibrate them. in fact there is no such thing
as a radar calibration you couldn't do it even if you wanted to, it's a time of flight measurement, You send out a
microwave signal and then you wait for it to come back in. We know how fast microwaves travel (speed of light)so the
transmitter just calculates the distance to the product by how Bong it took that signal to come back, So basically the
transmitter "re -zeros" every time it sends a pulse, You always restart at "zero time" so there is no way to change that
nor would their ever be a reason to. Hope that makes sense, thanks.
!IcNitt
Emerson Pr
Cetl [phone]
erent
From: Marshall, Tim [ma lto:Tim Marshall(a
Sent: Tuesday, November 03, 2015 3:31 PM
To: McNitt, Brian [PROCESS/RMT/CHAR]
Cc: Wolfe, Kris S; Christenbury, Chris III
Subject: GWR Transmitter Calibration Requirements or recommendation
Importance: High
ke energy c9 ]
2

- AGENCY CONTACT MEMORANDUM &
Release Notification t as r5©/D
Title: Senior Environmental Specialist
Department/Facility Name: Environmental Services / Permitting / Compliance Carolina
Duke Energy Contact: Robert C Sapp
Phone Number: [phone] office
[phone] mobile
Regulatory Agency: NC Mooresville Regional Office of DENR (Division of Water Quality)
Regulatory Contact: Wes Bell
Date/Time of Contact: 08/14/20 0957
Type of Contact: (Check all that apply)
Phone Number: 704-663-1699
Agency Inspection wn....ting Telephone Conversation Regulatory Interpretation
Other: email
Description:
This is a courtesy notification of a spill of sump water (process water) to the environment.
On August 13, 2015 at 10:15 am Marshall Site Operations was notified of a leak in the "B" water transfer line.
The plant was utilizing the "B" (bravo) line as a backup to Yard Sump #2 during scheduled repairs when the
transfer line cracked. At no time was any bottom ash in the line as this line was being utilized to transfer
water from Yard Sump #2 to Marshall's ash basin under permit. The B line was inspected at 10:00 am prior to
the release. At 10:15 am the line was inspected again and the rupture was noted. The pumps were shut off
upon discovery of the leak at 10:15 am. The leak was secured at this time and a maximum 15 minutes of
leakage is estimated. Approximately 3,000 gallons of sump water was released to the environment. The
release came in contact with the environment while gravity draining to the plant's containment system.
None of the released water reached the waters of the state.
Actions Required:
Entity: Marshall Steam Station
Entity Type: Fossil Fuel (coal) Power plant
Spill Discovered Date and Time: August 13, 2015 at 10:15
Page 1 of 2

AGENCY CONTACT MEMORANDUM &
Release Notification
Spill Address: Marshall Stearn Station 8320 East NC Hwy 150
City: Terrell
State: NC County: Catawba County
Directions: Approximately 9 miles west on highway 150 from Mooresville, NC
Description: Transfer fine cracked releasing process water to soil
Cause of Spill: Crack in Transfer fine
What was spilled? Process water from Yard Sump #2
Estimated Quantity Released ('gallons) 3,000 gallons
Environmental Mocha Impacted: Soil, Gravel
Equipment Type: Size:
Manufacturer: Serial Number
PCB Determination: If applicable No PCB
Is any of the following available?:
-Green/Blue Dot?
-PCB Concentration < 50 ppm
-Manufacturer statement that equipment is non -PCB
-Negative Clor-n-oil
-Negative Analytical Results
Brief description of clean-up operations/emergency response.
Who conducted cleanup? Water gravity drained to containment
Estimated volume of contaminated media removed. Unknown at this time
Date/Time cleanup completed. Ongoing
Page 2 of 2
4-1-2014

Bell, Wes
From: Sapp, Robert C <[e-mail]>
Sent Friday, August 14, 2015 10:09 AM
To: Bell, Wes
Cc: La Sala, Joseph Scott; Tuchbaum, Erika; Todd, Shannon; Winston, Cynthia
Subject: FW: Written report to NC DENR about spill yesterday
Attachments: Report to NC UST SectionAgency Contact and Memorandum and Release Notification
for Marshall wastewater spill August 13, 2015.docx
Sorry neglected to attach the document.
Thanks
Robert C. Sapp CHMM, MS
Duke Energy Permitting and Compliance Carolinas
Environmental Services
Duke Energy
EC13K 1526 South Church Street
Charlotte, NC 28202
office - [phone]
mobile - [phone]
fax - [phone]
[e-mail]
DUKE
ENERGY.,
Whatever your hands finds to do, do it with all your might
From: Sapp, Robert C
Sent: Friday, August 14, 2015 10:06 AM
To: '[e-mail]'
Cc: La Sala, Joseph Scott; Tuchbaum, Erika; Todd, Shannon; Winston, Cynthia
Subject: Written report to NC DENR about spill yesterday
Good morning
This is the written report of the spill that I spoke to you on the phone about. Thank you sir for your
help on this issue.
Thanks
Robert C. Sapp CHMM, MS
Duke Energy Permitting and Compliance Carolinas -
Environmental Services
Duke Energy
EC13K 1526 South Church Street
Charlotte, NC 28202
office - [phone]

mobile - [phone]
fax - [phone]
Robert.Sa0DPd uke-energy.com
DUKE
ENERGY.
Whatever your hands finds to do, do it with all your might
2

DUKE
ENERGY.
July 7, 2015
North Carolina Department of Environment
And Natural Resources
Water Pollution Control System Operators
Certification Commission
1618 Mail Service Center
Raleigh: North Carolina 27699-1618
SUBJECT: Duke Energy Carolinas, LLC
Operator in Responsible Charge
Back -Up Operator in Responsible Charge
Marshall Steam Station — NC0004987
Please make the following changes to your database effective July 1,, 2015.
• Gregory P. Phillips — Add as ORC at Marshall Steam Station
G Donald L. Scruggs — Delete as ORC at Marshall Steam Station
• Donald L. Scruggs — Add as Back -Up ORC at Marshall Steam Station
Envirorzmnntal Senii'cijs
Duke Energy
t326 $butte C,hurcn Street
Chearlo`.te, NC2_8202
P'a.iiing A (1ress
;'..41ail Code ECC13KJ P.O. Sox 1006
Charlotte, NC 28201.1006
All other information remains current and no other changes are necessary at this time.
Should you require additional information, please contact Steve Cahoon at 919-546-7457.
Yours truly,
Rick Roper
General Manager ill
Marshall Steam Station
Fossil Hydro Carolinas West

Attachment
Don Scruggs
Rick Roper
Greg Phillips
Record Type Code: ENV-50-02
Document Number: 8-6
UPS Tracking Number: 1Z X67 601 03 9346 5993

Water Pollution Control System ORC Designation Form
WPCSOCC
NCAC 15A:08G .0201
General Information:
Permittee Owner/Officer Name: Marshall Steam Station
Mailing Address: 8320 East NC 150 Hwv.
City: Terrell
State: NC Zip: 28682
Telephone Number: [phone]
Signature:
Date: 7/?/
Facility lnforrnation:
Facility: Marshall Steam Station
Permit Number: NC0004987
County: Catawba
r SUBMIT A SEPARATE FORM FOR EACH TYPE OF SYSTEM !
Mark (X) Type of Faci lity Class (1 — 4)
Class
Wastewater Plant Spray irrigation NIA
Physical/Chemical X 1 Land Application NIA
Collection System Subsurface NIA
Operator in Responsible Charge:
Print Name: Gregory P. Phillips
Certificate Type and Grade: Grade 1 Physical/Chemical Certificate #: 28197
Work Telephone: [phone] Signature:
Back -Up Operator in Responsible Charge:
Print Name: Donald L. Scruggs
Certificate Type and Grade: Grade 1 Physical/Chemical Certificate #: 27892
1,3
Work Telephone: [phone] Signature:()ifii ( (5r.)"
Mail or Fax to:
WPCSOCC
1618 Mail Service Center
Raleigh, N.C. 27699-1618
Fax: [phone]
•
Revised 10/2000

JJ \
Bell, Wes
From: Scruggs, Don <[e-mail]>
Sent: Monday, July 20, 2015 1:53 PM
To: Bell, Wes
Subject: FW: Scanned from a Xerox multifunction device
Attachments: Scanned from a Xerox multifunction device.pdf
Good talking to you Wes. Please confirm receipt.
Don Scruggs
Environmental Field Support
Carolinas West
704 829-2423 Office
704 400-3005 Cell
Original Message -----
From: [e-mail] [mailto:[e-mail]
Sent: Monday, July 20, 2015 2:43 PM
To: Scruggs, Don
Subject: Scanned from a Xerox multifunction device
Please open the attached document. It was scanned and sent to you using a Xerox multifunction device.
Attachment File Type: pdf, Multi -Page
multifunction device Location: Marshall 2nd floor - Admin bldg
Device Name: MS2FLADM
For more information on Xerox products and solutions, please visit http://www.xerox.com

Bell, Wes
From: Scruggs, Don <[e-mail]>
Sent: Friday, April 17, 2015 1:52 PM
To: Bell, Wes
Subject: FW: Marshall Sheen
Wes, based an observations of Outfall 003 discharge area, we are calling the recent Marshall Station oil spill event
complete. Please contact me at the numbers below if questions arise.
Thanks,
DC14 Seira994
Environmental Field Support
Carolinas West
704 829-2423 Office
704 400-3005 Ce1I
From: Scruggs, Don
Sent: Friday, March 20, 2015 12:44 PM
To: 'wes,[e-mail]'
Subject: Marshall Sheen
Wes, just a note to follow up on the sheen we observed on Sunday March 15th at Marshall Steam Station. Booms and
pigs were already deployed and in place from the initial spill on Wednesday March 3rd and were successful in confining
any observable sheen to a location just south of the intake structure in the vicinity of Outfall 003. A&D Environmental
mobilized to the site on Wednesday March 18th and vacuumed the remaining observable sheen. A&D, with
the assistance of Regional Utility Services proceeded to flush the roof drain line in an effort the remove any residual oil
which may have been hiding out. A&D also worked the adjacent shoreline vacuuming organic material at the water line
which may also have trapped some oil. One assumption is that the rain event on Saturday March 14th flushed out some
residual oil in the roof drain line. The lake level also rose a few inches over the weekend and organic material which
had previously contacted oil was exposed to the water and possibly resulted in a release of the slight sheen. We are
constantly monitoring this area and our discharge outlet and there is no observable sheen currently. However, we are
reluctant to call the event over, due to the possibility of another rain event or pond level increase resulting in an
observable sheen and requiring NRC notification.
Your guidance related to this situation would be appreciated.
Vila S
Environmental Field Support
Carolinas West
704 829-2423 Office
704 400-3005 Cell
i

Bell, Wes
From: Scruggs, Don <[e-mail]>
Sent: Friday, March 20, 2015 12:44 PM
To: Bell, Wes
Subject: Marshall Sheen
Wes, just a note to follow up on the sheen we observed on Sunday March 15th at Marshall Steam Station. Booms and
pigs were already deployed and in place from the initial spill on Wednesday March 3rd and were successful in confining
any observable sheen to a location just south of the intake structure in the vicinity of Outfall 003. A&D Environmental
mobilized to the site on Wednesday March 18th and vacuumed the remaining observable sheen. A&D, with
the assistance of Regional Utility Services proceeded to flush the roof drain line in an effort the remove any residual oil
which may have been hiding out. A&D also worked the adjacent shoreline vacuuming organic material at the water line
which may also have trapped some oil. One assumption is that the rain event on Saturday March 14th flushed out some
residual oil in the roof drain line. The lake level also rose a few inches over the weekend and organic material which
had previously contacted oil was exposed to the water and possibly resulted in a release of the slight, sheen. We are
constantly monitoring this area and our discharge outlet and there is no observable sheen currently. However, we are
reluctant to call the event over, due to the possibility of another rain event or pond level increase resulting in an
observable sheen and requiring NRC notification.
Your guidance related to this situation would be appreciated.
a Sa€499-4
Environmental Field Support
Carolinas West
704 829-2423 Office
704 400-3005 Cell
1

DUKE
ENERGY:
,AR LINA;:
July 21, 2014
State of North Carolina
Department of Environment and Natural Resources
Division of Water Resources
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject, Duke Energy Carolinas LLC — Marshall Steam Station
Groundwater Quality Monitoring — Compliance Report Form
Duke En
tlarrs'Jiull
8329 East NC
(trrel1 NC 286
X28-178 7700
y 150
Please find attached the completed Groundwater Compliance Report Form (GW-59CCR) for the Marshall
Steam Station ash basin (NPDES Permit #NC0004987)e
As required by the GW-59CCR form, parameters exceeding the generic standards published at 15A NCAC
02L 0202(g-h) have been bolded. However, per 15A NCAC 02L.0202(b), where naturally occurring
substances exceed the generic standards, the appropriate 2L standard shall be the naturally occurring
concentration as determined by the Director,
All values reported on the attached reports are dependent on the accuracy of approved analytical methods
used to measure parameters.
Should you have questions regarding this report, please contact me at [phone].
Sincerely,.
Allen Stowe
Water & Natural Resources
cc: Debra Watts
www.duke-energy.corn

GROUNDWATER QUALITY MONITORING:
COMPLIANCE REPORT FORM
;Mail original'
.,and 1;zopy-!
to. -,
DEPARTMENT OF ENVIRONMENT & NATURALRESOURCES
DIVISION OF WATER QUALITY.:INFORMATION PROCESSING UNIT
1617 MAIL SERVICE CENTER, RALEIGH, NC 27699-1617 Phone [phone] ,
FACILITY INFORMATION
Please Print Clearly or Type
Permit Type:
PERMIT Number:
TYPE OF PERMITTED OPERATION
Expiration
Facility Name:
Permit Name (if different):
Facility Address:
Marshall Steam Station
NPDES
Date: I 4/30/2015
Duke Energy Carolinas, LLC 4
_
NC0004987
8320 East NC 150 Hwy.
BEING MONITORED
(street)
Ash Impoundment Groundwater
Terrell I NC 28682 County Catawba
(city)
Contact Person:
Well Location/Site Name:
(State) (Zip)
Alien Stowe
Telephoned 704-382-4309
Marshall Ash Basin
No. of wells to be sampled: '
12
(from Permit)
r Monitoring Well Construction lnforn ation`
Units
Well ID Number (From Permit}
MW-4
MW-40
MW-10S
MW-10D
MW-115
row-noMW-12S
MW-12D
MW-13S
MW-13D
MW-14S
MW-14D
MW-
MW-
MW-
Well Depth (ft below land surface]
ft
48.04
60.82
26.91
85.43
_
51.42
90.55
22.47
95.79
18.45
46.03
43.95
59.84
Measuring Point (toc) (ft above land surface]
ft
2.16
3.36
2.30
2.04
2.70
2.55
2.63
2.51
2.43
2.52
• 2.92
2.76
Well Diameter
in
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
Screen Top [ft below land surface]
ft
38.04
55.82
11.91
80.43
36.42
85.55
7.47
90.79
3.45
41.03
28.95
54.84
Screen Bottom (ft below land surface]
ft
48.04
60.82
26.91
85.43
51.42
90.55
22.47
95.79
18.45
46.03
43.95 59.84
Relative Measuring Point Elevation
_.....
ft
866.42
866.74
772.05
772.04
884.99
884.67
871.86
871.88
847.49
847.05
811.291 811.43
._Samp.haag Inform and FieldAnalysis a. ,....
CHECK IF DRY WELL AT TIME OF SAMPLING
0 DRY
❑ DRY
❑ DRY
❑ DRY
❑ DRY
❑ DRY
❑ DRY
0 DRY
❑ DRY
0 DRY
0 DRY
❑ DRY
0 DRY
0 DRY
❑ DRY
15A-2L
Units
MW-4
MW-4D
MW-10S
MW-10D
MW-115
MW-11D
MW-125
MW-12D
MW-135
MW-13D
MW-14S
MW-14D
MW-
MW-
MW-
Sample Date
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
06/04/2014
Water Level [ft below measuring pt.] (82546)
.. .
ft
36.30
36.11
14.57
14.22
43.51
43.12
9.72
10.66
4.75
2.33
36.17
36.76
Volume of Water pumped/bailed
gal
3.25
14.75
2.55
5.35
0.70
2.55
1.20
30.50
0.55
5.20
1.30
6.10
Temperature (00010)
deg. C
16.2
16.0
15.8
15.8
17.1
17.0
15.3
15.4
15.1
15.2
16.1
15.8
Odor (00085)
None
None
None
None
None
None
None
None
None
None
None
None
Appearance
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Specific Cond - field (00094)
umhos/cm
46
79
17
60
42
53
16
65
87
91
749
597
pH - field (00400)
6.5 -8.5
SU
5.5
5.9
5.1
6.3
6.0
- 6.7
5.1
6.1
6.0
6.1
5.4
5.5
Laborato.ry'Information
Laboratory Name.
Sample Analysis Date
Duke Energy Analytical Laboratory
Certification #
NC DENR 0 248
Samples for metals were collected unfiltered: 0 Yes ❑ No
and field acidified: ID Yes ❑ No
June 5 - 17, 2014
15A-2L
Units
MW-4
MW-4D
MW-105
MW-10D
MW-115
MW-11D
MW-125
MW-12D
MW-13S
MW-13D
MW-145
MW-140
MW-
MW-
MW-
Sb -Antimony (01097)
1
ug/I
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
As - Arsenic (01002)
10
ug/1
<1
<1
<1
<1
' <1
<1
<1
<1
<1
<1
<1
<1
Ba - Barium (01007)
700
ug/I
48
42
46
20
33
62
22
25
41
45
26
36
B - Boron (01022)
700
ug/I
<50
<50
<50
<50
<50
<50
<50
<50
<50
<50
3190
2750
Cd - Cadmium (01027)
2
ug/I
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
CI - Chloride (00940)
250
mg/I
2
1.5
1.1
1.4
2.6
2
1.3
1.1
4,3
4.6
44
16
Cr - Chromium (01034)
10
ug/I
<5
<5
<5
<5
<5
7
<5
<5
<5
<5
<5
<5
Cu - Copper (01042)
1
mg/I
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
Fe - Iron (01045)
300
ug/I
190
25
616
137
92
287
34
478
221
18
393
85
Pb - Lead (01051)
15
ug/I
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
Mn - Manganese (01055)
50
ug/I
9
<5
24
7
<5
<5
11
11
6
<5
77
40
Hg - Mercury (71900)
1
ug/I
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
I Ni - Nickel (01067)
100
ug/I
<5
<5
<5
<5
<5
<5
<5
<5
<5
<5
55
26
Nitrate (NO3) as N (00620)
10
mg/I
<0.023
<0.023
<0.023
0.35
0.54
0.26
<0.023
<0,023
1.5
1.6
0.15
0.1
Se - Selenium (01147)
20
ug/I
<1
<1
<1
<1
<1
<1
<1
<1
<1
<1
6.25
4.35
504 - Sulfate (00945)
250
mg/I
0.11
1.4
0.11
2.9
0.37
1.3
0.74
7.6
0.47
0.55
280
230
Tl - Thallium (01059)
0.2
ug/I
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
TDS -Total Diss. Solids (70300)
500
mg/I
46
83
<25
79
46
75
25
82
91
95
580
450
Zn - Zinc (01092)
1
mg/I
<0.005
<0.005
0.011
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
0.009
0.011
<0.005
AI -Aluminum (01105)
ug/I
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/Ar
N/A
BOLD values equal or exceed the corresponding 2L standard
•
f certifycertifY that, to theibest of my knowledge and belief, the information submitted
in this.report'isanle,.accurate, and complete„aridahat,the taboratory'analyticaL.data was produced using approved methods ofanalysis by a D1NQ=certified
for knowing violations: 1
latiorafory i amraviare;that ahere are significant
'
7/( S ZON
penalties for submitting -false infi rmatiori , Including the°possibility of fines'and,imprisonment
Brian R Weisker, GM Ill. - Marshall Steam Station „„41511111111117
Permittee (or Authorized Agent) Name and Title -Please print or type Signature of Permittee (or Authorized Agent) Date
GW-59CCR 01/2011

Water Resource
ENVIRONMENTAL QUALUY
March 31, 2016
Michael Ruhe
Duke Energy Carolinas LLC
PO Box 1006
Charlotte, NC 28201-1006
PAT:
CC
ORY
Dt NA'LD R. VAN DER VAART
Subject: NPDES Electronic Reporting Requirements and
Sixty Day Notice of Minor Modification of the NPDES Permit
Marshall Steam Station
NPDES Permit Number: NC0004987
Dear NPDES Permittee:
S. JAY ZIMMERMAN
The U.S. Environmental Protection Agency (EPA) recently published the National Pollutant Discharge
Elimination System (NPDES) Electronic Reporting Rule, The rule requires NPDES regulated facilities to
report information electronically, instead of filing written paper reports. The rule does not change what
information is required from facilities. It only changes the method by which information is provided (i.e.,
electronic rather than paper -based).
EPA is phasing in the requirements o
key milestones, are:
ule over a 5-year period, The two phases of the rule, and their
Phase 1—Starting on December 21, 2016, regulated entities that are required to submit Discharge
Monitoring Reports (DMRs) will begin submitting these reports electronically, instead of on
paper. If you are currently reporting your DMR data electronically using eDMR, then you simply
need to continue reporting in the same way as you are now, The key change is that, starting on
December 21, 2016, electronic reporting of DMRs will be required, instead of voluntary.
Phase 2 —Starting on December 21, 2020, regulated entities that are required to submit certain
other NPDES reports will begin submitting these reports electronically, Instead of on paper.
Reports covered in the second phase include Notices of Intent to discharge in compliance with an
NPDES general permit, Sewer Overflow/Bypass Event Reports, and a number of other NPDES
program reports.
For more information on EPA's NPDES Electronic Reporting Rule, visit
http://www2,epa.gpv/com,plianceJ»na6l-natiional-pollutant-discharge-elimination-system n ,des-
electranie-reportin,g-rule. For more information on electronic reporting to NC DWR, visit
de nc.gov/about/div s o_ ns,/watwer-resources/edmr•n des-electronicrt ng or contact Vanessa
'nuel at 919-807-6392 or via email at Vanessa ManuelPncdenr,g 1.
StAte tafNoatlr Carolina l Environmental (�xcaltty l aiet llesou
161 I Mail a °vu 7C Center i :Raleigh, North Carol' 77699-1611
919 707 9000

Sixty Days' Notice of Minor Modification of the Subject NPDES Permit
^
The NPDES Electronic Reporting Rule requires authorized NPDES programs to incorporate electronic
reporting requirements into NPDESpermits beginning December ZI,2O15. Under the new rule, the
electronic reporting process supersedes the paper reporting process outlined in your existing permit. To
bring your permit up-to-date with the new reporting requirements, this letter serves to notify you that in
sixty days your NPIDES permit will be modified to incorporate the new electronic reporting requirements,
The modification will require electronic reporting in place of paper -based reporting. Electronic reporting
will berequired beginning asindicated above for Phases land 2reporting, Please attach the enclosed
NPDES PermitStandard Conditions Port 8/—Addendum to your permit. This permit modification becomes
effective onJuly 1, 2016.
All other terms and conditions in the original permit remain unchanged and in full effect, This
modification is issued pursuant to the requirements of North Carolina General Statute 143-215A and the
Memorandum of Agreement between North Carolina and the U.S, Environmental Protection Agency
dated October l5,ZOO7.
If any parts contained in this modification are unacceptable to you, then you have the right to file a
petition for a contested case with the Office of Administrative Hearings within thirty (30) days following
receipt of this letter. This petit�on must conform to the requirements of Chapter 150B of the North
Carolina General Statutes, Petitions must be timely filed with the Office of Administrative Hearings, Post
Office Drawer 1166G,Raleigh, North Carolina 276Q4, |fyou donot file apetition within the required time,
the agency decision shall befinal and binding. |fyou have questions concerning this permit modification,
please contact Tom Be\nickattelephone number gl9'8O7-639U.
SincereIy,
{l
for S.Jay Zimmerman, R6
Enclosure: NPDES Permit Standard Conditions Part III - Addendum
Cc: NPDESFUe
Central Files

NCDENR Marshall Notification
Mr. Parker,
Duke Energy would like to make a follow up report from the discovery of the back -pass bolter wash
water reported to you in October 2014. In order to identify potential risks associated with routine
station operation, Marshall Steam Station personnel were conducting camera inspections to ensure that
piping and drainage flowpaths were correctly identified. A courtesy notification, prior to the testing
activities, was given to your office on November 24, 2014. During the testing it was discovered that a
condensate line that infrequently receives demineralized water from the boiler does not discharge to
the ash basin as previously understood. The testing showed that this line discharges through Outfall 003
and hence to Lake Norman.
The condensate fine, which discharges demineralized water during stages of the start-up process, is only
used after extended outages. This is generally only once every one to two years. The demineralized
water is treated with a small quantity of Ammonia for pH control. We believe that this infrequent
discharge does not contain ash residue or any other pollutants. Upon learning this, station personnel
immediately instituted a corrective action which entailed no further use of the line for start-up
chemistry control. A study is being conducted to identify a permanent solution to close the line.
During the time the station was conducting the verification tests several other issues were identified.
One issue identified was the overflow of the Water Tower. The site has a water tower used for fire
protection water. The water tower contains untreated lake water. The tower may occasionally
overflow during filling, sending some of the lake water in the tower back to the lake. Duke Energy will
amend Marshall Plant's NPDES Permit application to reflect this possible occurrence.
Another issue identified is the discharge stormwater from the limestone settling basin directly to Lake
Norman. The basin receives stormwater runoff from the limestone pile. The stormwater is routed
through two pipes. One goes to the yard sump and then to the ash basin. The other pipe goes directly
to the lake. This discharge point to the lake will be capped off so it can no longer occur. The capping of
the line should be completed by 1/23/15.
Duke Energy does not believe that the historical infrequent discharge of the condensate water, water
tower overflow, or the stormwater discharge from the limestone settling basin had any adverse impact
to human health or the environment. As noted above Duke Energy is actively pursuing measures to
close out these discharges.
Rev. 1

Bell, Wes
From: Stowe, Allen [[e-mail]]
Sent: Wednesday, May 28, 2014 12:58 PM
To: Bell, Wes
Subject: Marshall SW Release
�4t: -20i 0/037
Wes,
Our summary of the Marshall stormwater release is listed below. Please contact me if you have any additional
questions. Thanks
At approximately 5:18 p.m. on 5/26/14, Marshall Station experienced a heavy rainfall event that caused a generation
trip and loss of half of 4160 volt loads on Unit 3, resulting in a power failure to the ash silos yard sump station. The ash
silos yard sump receives approximately 1 acre of stormwater runoff and this rainfall event produced over 1" of rain in a
short amount of time. Norma! operation for the ash silo sump pumps is to route the stormwater runoff and service
water for wash down to the ash basin; however, with the power outage these pumps were not operational and the
service water line used for agitation in the sump had a small amount of isolation valve leak by. Lake water is used to
supply the plant service water. Station operations started conducting site inspections of the area multiple times during
the night shift with the last inspection at 4:00 a.m. and reported that although water was observed in the ash silos
containment, no water had overflowed. On 5/27/14 the ash sumps area was inspected at 7:00 a.m., and a small trickle
of water from the ash silo area into the lake was identified. The estimated flow from the ash silo area was
approximately 100 gallons of stormwater/service water. A smaller volume of water may have actually reached the lake
due to the flow having to cross a gravel road and heavily vegetated bank before reaching the lake water. Although this
water had the potential to come in contact with coal ash residuals, it was observed to be clear, with no visible particles.
By 8:00 a.m. site vendors were vacuuming the water out of the containment and by 8:30 a.m. the flow had stopped. All
water has been removed from the containment and the area. Operations monitored the ash silo sump area until power
was restored. While the sump pumps were still inoperable, a vacuum truck to remove standing water from
containment area was placed on standby to respond if a rain event occurs before the pumps were reenergized. Allen
Stowe placed a notification call to NC DENR DWR (Wes Bell - Mooresville Regional Office) at 12:52 p.m. on March 27th
An additional procedure is being developed to address the loss of the 3TA1 electrical loads. At 9:00 p.m. on 5/27/14,
power was restored and the sump pumps are again operational.
Allen Stowe
Water & Natural Resources
Duke Energy
704-382-4309 (Office)
704-516-5548 (Cell)
[e-mail]
1

DUKE
ENERGY.
March 25, 2014
North Carolina Department of Environment
and Natural Resources
Division of Water Resources
Water Quality Program
161' 7 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
Marshall Steam Station
NPDES Permit No. NC0004987
Ash Pond Riser and Decant Piping - Unwatering Project
Attention: Mr. Thomas A. Reeder, Director
Dear Mr. Reeder:
Environmental Services
Duke Energy
526 South Church Street
Charlotte, NC 28202
Mailing Address:
Mail Code EC13K / P.0, Box 1006
Charlotte, NC 28201-1006
This letter is in reference to a request from Mr. Steven McEvoy to Mr. John Elnitsky of Duke
Energy [dated March 5, 2014] requesting information relating to the Company's ash pond
decant structures in North Carolina. The letter specifically requested that we provide a schedule
for completing and reporting results from camera inspections of decant structures containing
Corrugated Metal Pipe (CMP) or concrete pipe. Mr. Elnitsky responded to Mr. McEvoy in a
letter dated March 14, 2014 with an inventory and status of the Company's subject pipes. Our
purpose with this letter is to inform you of Duke Energy's interest in beginning this work at the
Marshall Steam Station soon, to meet the March 31, 2014 requested deadline. The project will
involve temporarily unwatering a section of pipe and all activity will be confined to the immediate
area of the pipe within the ash basin and at the pipe outfall.
The facilities to be inspected are the ash pond outlet riser and pipe (State ID CATAW-054) at
the Duke Energy Marshall Steam Station. A single 42" diameter CMP (corrugated metal pipe)
conveys flow from the ash pond to Lake Norman. The length of the pipe is approximately 320
feet. The 42" CMP was previously slip -lined with a 30" outside diameter HDPE (high density
polyethylene) pipe. Slip -lining was performed in 1987.
The riser is a concrete structure with access gained via an elevated walkway which is
approximately 80-feet long. From the riser tower, the outlet pipe extends approximately 320
feet underneath the pond bank to a small inlet off of Lake Norman. The pipe outlet is
submerged approximately 3-5 feet. The pipe outlet is approximately 15 feet from the bank of
Lake Norman.
Prior to commencement of the work, engineering staff will determine if a buoyancy analysis is
required for proposed structures and pipes to be inspected. The following sequence
summarizes the tasks needed to complete the inspection:
1. Stage equipment, placing spill containment under areas that contain petroleum.

2. install stop logs in riser structure. Place plastic along the outside of stop logs to reduce
flow through the stop log gaps.
3. Remove 2-inch diameter sampling pipe installed at outlet of discharge pipe.
4. Lower submersible pump into the riser and pump water out of the discharge pipe to
remove water to the extent practical. Water will be pumped into the ash pond.
5. Visually inspect the riser with CCTV equipment. Insert CCTV equipment at riser
structure, using crane and hoist presently installed on top of the intake tower. Pan pipe
joints and observed defects as it is lowered and inserted, stopping as necessary to view
the condition of the riser and pipe.
6. Diver to install the CCTV equipment at outlet of discharge pipe. Visually inspect the
discharge pipe with CCTV equipment, beginning at outlet of discharge pipe. The
discharge pipe is expected to be full of water up to a point. If quality video is achieved,
there will no further dewatering of the pipe or CCTV inspections. Remove CCTV
equipment and proceed to Step 12.
7. If quality video referred to in Step 6 is not achieved, Steps 7 thru 11 will be performed.
Divers will install a temporary plug at outlet of discharge pipe. The plug will include a
flow -through port fitted with a valve/extension for attaching a vacuum truck or pump.
8, Pump water from the discharge pipe via the flow -through port as practical.
9. Visually inspect pipe with CCTV equipment from the riser structure.
10. Remove CCTV equipment.
11. Remove temporary plug at outlet of discharge pipe.
12. Reinsert 2-inch diameter sampling pipe at outlet of discharge pipe and secure to bank.
13. Remove equipment and perform site clean-up.
14. Remove stop logs and plastic sheeting from riser.
Staging areas for work equipment are adjacent to both the intake structure and discharge pipe
and are accessible via a combination of paved and gravel roads. It is anticipated that the
proposed work can be completed in one day.
Duke Energy believes that our proposed activities will not require NPDES permit modifications
or other water permitting actions, If you concur, we would appreciate your acknowledgment of
approval to proceed at your earliest opportunity. if you have any questions or concerns
regarding our proposed course of action, please contact me at [phone] or by e-mail at
Jahn. Velte a duke-eneray.cocn.
Sincerely,
elte, Manager
NPDES Compliance
Environmental Services, Water & Natural Resources
xc: Mr. Michael Parker — Division of Water Resources DWR Fayetteville Regional Office
Mr. Zahlid Kahn — Division of Energy, Mineral & Land Resources — Fayetteville Regional
Office
Mr, Jeffrey Poupart — Division of Water Resources — Raleigh Central Office
Mr. Steve McEvoy, PE — Division of Energy, Mineral & Land Resources — Raleigh
Central Office
Mr. Donald Vandervaart — Department of Environment and Natural Resources

Pat McCrory
Governor
NCDENR
North Carolina department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Thomas A. Reeder
Director
John E, Skvaria, III
Secretary
December 18, 20.13
Mr. Allen Stowe, Water Management
Duke Energy
Post Office Box 1006fEC 1.3K
Charlotte, North Carolina 28201-1006
Subject: Compliance Evaluation. Inspection.
Marshall Steam Station
NPDES Permit No. NC0004987
Catawba County
Dear Mr. Stowe:
Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the
subject facility on December 13, 2013 by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -
Responsible (ORC) of our findings by forwarding a copy of the enclosed report.
The report should be self-explanatory; however, should you have any questions concerning this report, please
do not hesitate to contact Mr. Bell at [phone] or at wes.bell*cdenr.gov.
Sincerely,
Michael L. Parker
Supervisor
Water Quality Regional Operati
Enclosure:
Inspection Report
cc: Catawba County Health Department
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-674
Internet: www.newaterquality.org
1
ion.
I arthCarolina
�latltraiiij
An Eaual Oeecrlunoty %.Affrmurive Action Employer-30% Recycle
10arfk Posl Consumer ciaeer

United States Environmental Protection Agency
EPA Washington, D.C. 20460
Water;nmpJianr:e Inspect -inn Reprwt
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector FaclIType
1 I N 1 2 1 51 31 NC0004987 111 121 . 13/12/13 117 18l e l 19151 20
J
Remarks
2111IIII1111IIIIII IIIII11IIII11III1III'IIII III1I1166
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA--------- —Reserved------------------
671 1.5 169 701 41 711 N 1 72 I NI 731 1 174 751 1 1 1 1 1 I 1 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Marshall Steam Station
NC Hwy 150
Terrell NC 28682
Entry Time/Date
09:00 AM 13/12/13
Permit Effective Date
11/03/01
Exit Time/Date
12:05 PM 13/12/13
Permit Expiration Date
15/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
George Brian Tolbert/ORC/336-589-4087/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Allen 5towe,526 S Chruch St Charlotte NC 282011002//704-382-4309/7043829840 No
Section C: Areas Evaluated During inspection (Check only those areas evaluated)
Permit." • Flow Measurement Operations & Maintenance IIII Records/Reports
Self -Monitoring Program Sludge Handling Disposal • Facility Site Review Effluent/Receiving Waters
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Wes Bell q� f MRO WQ//704-663-1699 Ext.2192/ / 2/1 Cl A 5-
S
Marcia
nature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers D
ca MRO WQ//704-663-1699 Ext.2204/
to
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/me/day Inspection "typ
11 12 1?
NC0004987 1 13/12/13 J 18 LJ
Section D: Burn nary crf Finding/Comments {Attach additional sheets of narrative and checklists as necessary)
Page # 2

Permit: NC0004987
Inspection Date: 12/13/2013
Owner - Facility: Marshall Steam Station
Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(lithe present permit expires in 6 months or less). Has the permittee submitted a new application? ❑ n ■ ❑
Is the facility as described in the permit? ■ n n n
# Are there any special conditions for the permit? ■ ❑ ❑ n
Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? ■ n n n
Comment: The subject permit expires on 4/30/2015. No biocides are added to
Outfalls 001 and 003.
The last compliance evaluation inspection was performed on 4/17/2012.
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? ■ ❑ ❑ ❑
Is all required information readily available, complete and current? ■ ❑ n n
Are all records maintained for 3 years (lab. reg. required 5 years)? ■ ❑ n n
Are analytical results consistent with data reported on DMRs? ■ n ❑ ❑
Is the chain -of -custody complete? ■ ❑ ❑ ❑
Dates, times and location of sampling ■
Name of individual performing the sampling ■
Results of analysis and calibration ■
Dates of analysis ■
Name of person performing analyses ■
Transported COCs ■
Are DMRs complete: do they include all permit parameters? ■ ❑ n 0
Has the facility submitted its annual compliance report to users and DWQ? n n ■ ❑
(If the facility is = or n 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? DONO
Is the ORC visitation log available and current? ■ n n n
Is the ORC certified at grade equal to or higher than the facility classification? . ■ n n n
Is the backup operator certified at one grade less or greater than the facility classification? ■ n n n
Is a copy of the current NPDES permit available on site? ■ ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review? n n i■ n
Page# 3

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 12/13/2013
Inspection Type: Compliance Evaluation
Record Keeping
Comment: The records reviewed during the inspection were organized and well
maintained. Discharge Monitoring Reports (DMRs) were reviewed for the period
October 2012 through September 2013. No effluent limit violations were reported and
all monitoring frequencies were correct.
No discharges were reported during the review period at Outfalls 002A and 002B,
Laboratory
Are field parameters performed by certified personnel or laboratory?
Are all other parameters(excluding field parameters) performed bya certified lab?
# Is the facility using a contract lab?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
Incubator (BOO) set to 20,0 degrees Celsius +/- 1.0 degrees?
Comment: On -site field analyses (pH and temperature) are performed under Duke
Energy/Marshall Steam Station's laboratory certification #5155. Duke Energy's
Analytical Laboratory and the contracted services of Pace Analytical Services, Inc. (low
level mercury) and ETS, Inc. (toxicity) provide analytical support.
The pH meter appeared to be properly calibrated and documented.
Yes No NA NE
Yes No NA NE
N DOO
■ n n n
■ nnn
■ nnn
n n■❑
n n.n
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
Is sampling performed according to the permit?
Comment: The subject permit requires grab samples (selenium and zinc) at the
internal ©utfall 004.
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
n n■n
O ONO
■ nnn
O 0•0
orlon
■ non
Yes No NA NE
n n * n
•n n n
* nnn
n n a n
O 0150
Page # 4

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 12/13/2013
Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? MOOD
Comment: The subject permit requires effluent grab samples.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n
Judge, and other that are applicable?
Comment: The NPDES facilities appeared to be properly operated and well
maintained. Process control measurements were being documented and maintained
on -site.
The FGD wastewater is treated through the following treatment systems prior to
entering the ash basin: equalization basin, mushroom compost system (6 cells), and
bullrush/cattail treatment systems (3 trains - 2 cells per train).
The, ash basin is equipped with carbon dioxide (primary), sulfuric acid, and sodium
hydroxide containers for pH adjustment that is provided on an as -needed basis.
Both yard sumps (Outfalls 002A and 002B) are equipped with high water alarms
monitored in the facility's control room.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Outfall 001 flows are based on pump curves/supporting calculations.
Outfall 002 flows are measured by a staff guage and suppporting calculations. The
flows at Outfalls 002A and 002B would be measured by a staff guage and supporting
calculations. Outfall 004 (internal outfall) is equipped with a flow measurement system
that is calibrated annually and was last calibrated on 11/28/2012 by Duke Energy's
Instrumentation Unit.
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment: The discharges from Outfalls 001, 002, and 003 appeared clear with no
floatable solids or foam. The receiving stream did not appear to be negatively impacted.
No discharges were observed at Outfalls 002A and 002B.
Solids Handling Equipment
Yes No NA NE
Yes No NA NE
■ nnn
■ O ❑ O
nn■n
Yes No NA NE
Page # 5

Permit: NC0004987
Owner - Facility: Marshall Steam Station
Inspection Date: 12/13/2013 inspection Type: Compliance Evaluation
Solids Handling Equipment
Is the equipment operationai?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts andlor rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Comment: The FGD treatment system includes three plate/frame presses that were all
operational; however, sludge dewatering was not being performed at the time of the
inspection. Dewatered sludge is disposed into the on -site landfill.
The gypsum (FGD process) is reused by a contracted company in the dry wall
manufacturing process, The fly ash is disposed into the on -site landfill and the bottom
ash is either disposed into the on -site landfill or reused in the concrete block
manufacturing process.
Yes No NA NE _w
■ ❑nn
■ nnn
f_1 n n ■
union
nun.
■ non
Page #

Beverly Eaves Perdue
Governor
NCDEPITI
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, RE
Director
Mr. Allen Stowe, Water Management
Duke Energy
EC13K / Post Office Box 1006
Charlotte. North Carolina 2820 l-1006
Dear Mr, e:
April 23, 2012
Subject: Compliance Evaluation inspection
Marshall Steam Station
NPDES Permit. No, NC0004987
Catawba County
Dee Freeman
Enclosed is a copy of the Compliance Evaluation inspection Report for the inspection conducted at the subject
facility on April 17, 2012.by Mr. Wes Bell of this Office. Please advise the facility's Operator -in -Responsible
Charge (ORC) of our findings by forwarding a copy of the enclosed report..
The report should be self-explanatory; however, should you .have any questions concerning this report, please do not
hesitate to contact Mr, Bell at (704) 235-2.192, or at wes.bellAncdenr.gov.
for Robert Krebs
Surface Water Protection Regional Supervisor
Enclosure:
Inspection Report
cc: Stephen Immel, Plant Manager, Marshall Steam Station
Catawba County Health Department
WB
Mooresville Regional Office
Location: 610 East Center Ave:, Suite 301 Mooresville, NC 26115
Phone: [phone] +i Fax: [phone] +i Customer SeNice, 1-877-623,6746
Internet: www nowaterquality.org
One
NorthCarolina
Naturally
An Lquai Opportunity', Alrmakre Action Employer - 30% Recycledc10% Post Calsulner paper

irUnited States Environmental Protection Agency
EPA Washington, D.C. 20460
Water Compliance Inspection Report-
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection
1 I NI 2 IL 31 NC0004987 1 11 121 12/04/17 1 17
Type Inspector Fac Type
181 r I 191 c `! t 20 11
I I I I I IIII1111 II166
Remarks
2111II I 1 I I I1I111ILII1111II I11I I I I
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA
67 I 1.5 1 69 70 IA 71) N I 72 N �--I
Reserved---
—
731 1 174 75[ 1 1 1 1 1 1 1 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Marshall Steam Station
NC Hwy 150
Terrell NC 28682
Entry Time/Date
09:00 AM 12/04/17
Permit Effective Date
11/03/01
Exit Time/Date
12:50 PM 12/04/17
Permit Expiration Date
15/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
/11
Donna Lee BurrelllORC/828-478-78201
Other Facility Data
Name, Address of Responsible OfficialtTitle/Phone and Fax Number
Contacted
Jimmie Allen Stowe,526 S Chruch St Charlotte NC 282011002/1704-382-4309/7043829840 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement 111 Operations & Maintenance • Records/Reports
Self -Monitoring Program • Sludge handling Disposal • Facility Site Review • Effluent/Receiving Waters
ll Laboratory
Section D: Summary of Findinq/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Wesley N Bell fliI � JO MRO WQl/704-663-1699 Ext.21921 `7' /,,z j `f
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Marcia Allocco MRO WQJ/704-663-1699 Ext.2204/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day inspection Type
NC0004987 111 121 12/04/17 117 18 _ I
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page # 2

Permit: NC0004987 Owner -Facility: Marshall Steam Station
Inspection Date: 04/17/2012 Inspection Type: Compliance Evaluation
Permit
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment: The subject permit expires on 4/30/2015. The last compliance inspection
was performed on 6/7/2010.
No chlorine is added to the discharges at Ouffalls 001 and 003.
Yes No NA NE
■ nnn
■ ❑nn
■ nnn
■ nnn
■ nnn
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit? ' ■ 0 0 n
Is all required information readily available, complete and current? ■ n n n
Are all records maintained for 3 years (lab. reg. required 5 years)? ■ n n n
Are analytical results consistent with data reported on DMRs? NOOD
Is the chain -of -custody complete? • Q 0 0
Dates, times and location of sampling ■
Name of individual performing the sampling ■
Results of analysis and calibration ■
Dates of analysis ■
Name of person performing analyses ■
Transported COCs ■
Are DMRs complete: do they include all permit parameters? ■ 0 n 0
Has the facility submitted its annual compliance report to users and DWQ? Q ❑ ■
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n n ■ ❑
Is the ORC visitation log available and current? ■ n n n
Is the ORC certified at grade equal to or higher than the facility classification? ■ n n
0
Is the backup operator certified at one grade less or greater than the facility classification? EDDO
Is a copy of the current NPDES permit available on site? ■ n n n
Facility has copy of previous year's Annual Report on file for review? n n ■ ❑
Page # 3

Permit: NC0004987 Owner - Facility: Marshall Steam Station
inspection Date: 04/17/2012 Inspection Type: Compliance Evaluation
Record Keeping
Comment: The records reviewed during the inspection were organized and well
maintained. Discharge Monitoring Reports (DMRs) were reviewed for the period
February 2011 through January 2012. No limit violations were reported and all
monitoring frequencies were correct.
Yes No NA NE
Laboratory Yes No NA NE
Are field parameters performed by certified personnel or laboratory? ■ n n n
Are all other parameters(excluding field parameters) performed by a certified lab? ■ n n n
# Is the facility using a contract lab? ■ n n n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? ■ n n n
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? 0 0 ! 0
Incubator (BOD) set to 20.0 degrees Celsius +r- 1.0 degrees? 0 0 • 0
Comment: On -site field analyses (pH and temperature) are performed under field
laboratory certification #5155. Duke Power's Environmental Services Laboratory
(Certification #248) and the contracted services of Pace Analytical Services, Inc. and
ETS, Inc. provide analytical support. The pH meter and temperature measuring devices
appeared to be properly calibrated and documented.
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional? n I] • ❑
Is sample collected above side streams? ■ n n n
Is proper volume collected? • n n n
Is the tubing clean? n n • n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? n n ■ n
Is sampling performed according to the permit? ■ n n n
Comment: The subject permit requires grab samples (zinc and selenium) at the
internal outfall 004.
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional? n n • n
Is sample collected below all treatment units? 'Irmo
Is proper volume collected? ■ n n n
Is the tubing clean? n n • n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? 0 0 • 0
Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ n n n
Page # 4

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 04/17/2012 Inspection Type: Compliance Evaluation
Effluent Sampling Yes No NA NE
Comment: The subject permit requires effluent grab samples.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ n n n
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n
Judge, and other that are applicable?
Comment: The FGD and ash basin treatment systems appeared to be properly
operated and well maintained. The new six vertical flow wetland system (replaced
existing wetland cells 1A, 1 B, 1 C) were placed into operation in December 2011. The
ash basin system (prior to the effluent discharge) is equppped with sodium hydroxide
and ferric sulfate containers for pH adjustment that is provided on an as -needed basis.
Both yard sumps (OutfelIs 002A and 002B) are equipped with high water alarms
connected to the facility's control room.
Solids Handling Equipment
Is the equipment operational?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Comment: The FGD treatment system is equipped with three plate and frame
presses; however, the treatment units were not operating at the time of the site visit.
The dewatered sludge is disposed on -site (permitted landfill). The gypsum (FGD
process) is reused by a contracted company in the dry wall manufacturing process.
The fly ash is disposed on -site (permitted landfill) and the bottom ash is either disposed
on -site (permitted landfill) or reused in the concrete block manufacturing process.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Yes No NA NE
■ n n n
■ nnn
■ 000
n nn■
n n■n
n ❑ ❑ ■
■ nnn
Yes No NA NE
■ nnn
■ nnn
■ nnn
nn■❑
Page # 5

Permit: NC0004987 Owner - Facility: Marshall Steam Station
inspection Date: 04/17/2012 Inspection Type: Compliance Evaluation
Flow Measurement - Effluent Yes No NA NE
Comment: Outfall 001 flows are measured by pump curves and supporting
caluculations. Outfall 002 flows are measured by a staff guage and supporting
calculations. Internal Outfall 004 flows are measured by a flow measuring device that
was last calibrated/verified by Duke Energy staff on 11/9/2011. This flow meter is
calibrated/verified annually.
The flows at Outfalls 002A and 002B would be measured by a staff guage and
supporting calculations.
Effluent Pipe
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment: The discharges from Outfalls 001 and 002 appeared clear with no floatable
solids or foam. The receiving stream did not appear to be negatively impacted. No
discharges were observed at Outfalls 002A and 002B.
Yes No NA NE
■ nnn
■ nnn
DDmEl
Page # 6

From:
Sent:
To:
Cc:
Subject:
Attachments:
John:
Nin5 1Nc,pe.-si . ZbIJc pS$
Burrell, Donna L [[e-mail]]
Wednesday, October 05, 2011 11:08 AM
Lesley, John
Immel, Steve; Helderman, Rickey L; Reid, James W III; Hudgins, Gregory 0; Willis, George T;
Herrick, Dayna J; Stowe, Allen
5-Day Follow-up Report for 9/30/11 Oil Spill at Duke Energy/Marshall Steam Station
boat.JPG
As you requested during your phone conversation with Allen Stowe on Friday, September 30, 2011, 1
am providing the following information to satisfy the 5-day follow-up report concerning the oil spill at
Duke Energy's Marshall Steam Station,.
Facility: Duke Energy Carolinas, LLC Marshall Steam Station
The morning of September 30, 2011 around 8:30 am, the 50 hp Honda 4 cycle motor on Regional
Utility Service's work boat (barge) that is used to clean the intake trash racks for the station
Condenser Circulating Water pumps developed an oil leak. The work boat (barge) is 21' long, 7'6"
wide and 30" deep and is constructed of metal (see attached photo). The oil dip stick came out of its
seat about two (2) inches allowing a small amount of oil (<1 pint) to get into the water. The boat was
taken out of service and the motor was wrapped with plastic bags and loaded onto a trailer to keep.
any additional oil from getting into the water. Eddie Sines (Marshall Production Team Supervisor) was
contacted to help evaluate the oil spill and agreed that less than a pint of oil was spilled. The oil
sheen that was reported by Eddie Sines was about the size of a piece of notebook paper.
The incident was reported to Donna .Burrell (Marshall's Principal EHS Professional) at 1:25 pm on
September 30, 2011 and she in turn contacted Allen Stowe (Duke Energy EHS Water Management
Group). Alien called the National Response Center (NRC) at 2:55 pm on September 30, 2011 and
gave the information to John Dedeaux (incident # 991310 was assigned). Allen also notified John
Lesley of NCDENR DWQ at 3:00 pm and provided him the spill details per the 24-hour notification
state requirement.
On October 3, 2011 at 9:00 am Marshall employees talked with the mechanic that will be
the boat motor regarding what could have caused the motor to fail and he said it appears
in the oil. Apparently the motor has an internal problem that allowed water to get in to the
and float the oil out the dipstick hole. This will be verified whenever the motor is repaired.
out of service until repairs are complete.
working on
to be water
crankcase
The boat is
If there are any questions or if additional information is needed, feel free to give me a call.
Donna Burred
Principal EHS Professional
Marshall Steam Station
828-478-7820 (office)
704-902-5153 (cell)
1

u
, ms*rpw. —
"ro,w r,

A7A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
July 8, 2010
Mr. Allen Stowe, Water Management
Duke Energy
Post Office Box 1006/EC13K
Charlotte, North Carolina 28201-1006
Subject: Compliance Sampling Inspection
Marshall Steam Station
NPDES Permit No. NC0004987
Catawba County, N.C.
Dear Mr. Stowe:
Enclosed is a copy of the Compliance Sampling Inspection Report for the inspection
conducted at the subject facility on June 7, 2010 by Ms. Donna Hood and Mr. Wes Bell of the
Mooresville Regional Office and accompanied by Ms. Autumn Romanski of the Raleigh
Regional Office. PIease advise the facility's Operator -in -Responsible Charge of our findings by
forwarding a copy of the enclosed report. The results of the analyses collected by DWQ Staff
will be sent to you under separate cover.
The facility has several stormwater outfalls that discharge into waters of the State.
Although the facility operates under an internal stormwater management program, potential
exposures to the stormwater runoff as a result of the facility's operations exist. Following
discussions with the Division's Stormwater Permitting Unit, the stormwater discharges will need
to be covered under an individual stormwater permit. A completed permit application and
supporting documentation (including fee) should be mailed to the attention of Bradley Bennett,
Supervisor, DWQ/Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh, N.C. 27699-
1617. The permit application and supporting information can be found at the following website
address: http://portal.ncdenr.org/web/wq/ws/su/rzpdessw-#General Permits NPDES. The
application and supporting documentation (including fee) should be submitted to the Division
within 30 days following receipt of this report.
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service: 1-877-623.6748
Internet: ttttp:l/portaLncdenr.orglweblwq
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled1l0% Past Consumer paper
One
NorthCarolina
7Va'turaI/f

r
Mr. Allen Stowe
Page Two
July 8, 2010
Should you have questions concerning this report, please do not hesitate to contact Mr.
Bell at [phone] or Mr. Bennett at [phone].
Sincerely,
76i 6/0_,
Robert B. Krebs
Regional Supervisor
' Surface Water Protection
Enclosure:
Inspection Report
cc:
Catawba County Health Department
WB

United States Environmental Protection Agency
EPA Washington. D.C. 2C460
Water Compliance Inspection Report
Farm Approved.
OMB No, 2040-0057
Approval expires8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yrlmo/day Inspection
1 1 Til 2 15! 31 N00004987 1 11 121 10/06/07 117
Type Inspector Fac Type
18I 51 191 $1 201 1
1 1 1[ 1 III 11 L 1 I I 1 166
' Remarks
I L 1[ 1 ILI I l III 1 III 1 1 1 1 1 1 1 1 1 1 1 1 1
Imp
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----------------------------Reserved--- ----- ----
671 1.5 169 70 141 71 1 N 1 721 N 1 73 11 174 751 1 1 1 1 1 1 1 80
`
Section B: Facility Data
Name and Location of Facility Inspected For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Marshall Steam Station
NC Hwy 150
Terrell NC 28682
Entry Time/Date
10:00 AM 10/06/07
• Permit Effective Date
09/07/01
Exit Time/Date
09.00 PM 10/06/07.
Permit Expiration Date
10/09/30
Name(s) of Onsite Representative(s)[Titles(s)lPhone and Fax Number(s)
///
Donna Lee Burrell/ORC/828-478-7820/
Jimmie A11en'Stowe//704-382-4309 /
Other Facility Data
Name, Address of Responsible OflicialfiitlelPhone and Fax Number
Jimmie Allen Stowe,526 S Chruch St Charlotte NC Contacted
282011002//704-382-4309/7043829840 Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Records/Reports
® Effluent/Receiving Waters
and checklists as necessary)
Permit II Flow Measurement ' Operations & Maintenance
Self -Monitoring Program ® Sludge Handling Disposal Facility Site Review
Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative
(See attachment summary)
Name(s) and Signature(s) of Inspect (s) Agency/Office/Phone and Fax Numbers Date
MRO WQ//704-663-1699 Ext.2192/ 7/740
Wesley N Bell (W .JQf--i1,
Donna Hood MRO WQ//704-663-1699 Ext.2193/
Si nature of Management Q A evi wer Agency/Office/Phone and Fax Numbers
Da0 1
Marcia Allocco MRO WQ//704-663-1699 Ext.2204/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yrlmolday Inspection Type
31 NC0004967 f11 1z1 10/ 6/07 I „ 181sI
igi
(cont.) 1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
SUMMARY SECTION cont'd:
The facility has several stormwater outfalls that discharge directly into waters of the State. Potential
stormwater exposures (from raw materials, by-products, metal storage dumpsters, etc.) as a result of the
facility's operations were observed. The facility staff operate under an internal stormwater management
program that includes the identification of all stormwater outfalls and their respective drainage areas. The
Division's Stormwater Permitting Unit has indicated to MRO staff that the facility will need to apply for
coverage under an individual stormwater permit.
FACILITY SITE REVIEW:
The Division issued an ATC on 4/27/10 for the installation of vertical flow wetland (VFW) cells containing
spent mushroom compost for the removal of selenium. These VFW wetland cells will replace the existing
wetland cells 1A, 1B, and 1C. These wetland cells (1A, 1B, 1C) have been taken off line and the vegetation
from one of these wetland cells has already been removed. The facility staff indicated that the vegetation
would be composted and placed back into an on-line wetland cell(s).
SLUDGE DISPOSAL:
Fly ash, clarifier sludge, spec and off spec gypsum, etc. are disposed into the permitted landfills located
on -site. The spec gypsum is also reused in the National Gypsum Company's manufacturing process.
Page # 2

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 06/0712010 Inspection Type: Compliance Sampling
Permit
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment: The subject permit expired on 4/30/10 and a permit renewal application
was received by the Division on 11/2/09. The facility is classified as a
Physical/Chemical 1 treatment.system; however, the facility also uses a constructed
wetland (biological) treatment system for the uptake/reduction of selenium. The
Division's Technical Assistance & Certification Unit has been forwarded this information
to determine if an additional classification (Grade I Biological) is warranted. The TACU
staff will provide a decision following the review of the facility's treatment system. See
"Summary" for additional permitting comments.
Record Keeping
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (!ab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Yes No NA NE
unnn
®nnn
nn®n
nnn
u nnn
Yes No NA NE
u nnn
unnn
®nnn
nnn
®nnn
nnn
n7Ea7
nn®n
con El
Blinn
® nnn
u nnn
Page # 3

Permit: NC0004987
Inspection Date: 06/C7/2010
Owner - Facility: hlarsirsll Stearfr Station
Inspection Type: Compliance Sampling
Record Keeping Yes No NA NE
n n■n
Rae€lity has copy of previous year's Annual Repot on file for review?
Comment: The facility's records were organized and well maintained. Discharge
Monitoring Reports (DMRs) were reviewed for the period April 09 through May 10. No
effluent limit violations were reported and all monitoring frequencies were correct.
Laboratory
Are field parameters performed by certified personnel cr laboratory'
Are all other parameters(excluding field parameters) performed by a certified Ifab?
# Is the facility us ng a contract lab?
# is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius}?
Incubator (Fecal Conform) set to 44.5 degrees Celsius-1-0- 0.2 degrees?
Incubator (BCD) set to 20,0 degrees Celsius -I- 1 0 degrees?
Comment; On -site field analyses (pH and temperature) are performed under
laboratory certification #5155. The Duke Power Analytical Laboratory (Certification
#248) and the contracted services of ETS, Inc. (Chronic Toxicity) also provide analytical
support. The pH meter appeared to be properly calibrated (and documented). The
thermocouples (temperature - Outfall 001) are also calibrated at a minimum of once per
year (and documented).
Effluent Sampling
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6,0 degrees Celsius;?
Is the facility sampling performed as required by the permit (frequency, sampling, type representative)?
Comment: The subject permit requires effluent grab samples.
Operations & Maintenance
Is the plant generally clean with acceptable housekeeping?
Yes No NA NE
■ nnn
■ nnn
■ nnn
■ nnn
n_n■n
Doan
Yes No NA NE
n n■n
■ n n n
■ n n n
n n ■ n
n n■n
■ nnn
Yes No NA NE
■ nn
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Sol;bs, pH, DO, Sludge ■ n n n
Judge, and other that are applicable?
Comment: The treatment system appeared to be properly operated and well
maintained. No chlorine is added to the once through cooling water (Outfall 001). The
facility staff use either Sodium hydroxide or CO2 for pH adjustment (as -needed basis) in
the ash basin discharge (Outfall 002). Process control monitoring includes pH
measurements at different treatment processes/units and in the receiving stream
adjacent to Outfall 002.
Page # 4

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 06107/2010 inspection Type: Compliance Sampling
Chemical Feed
Is containment adequate?
Is storage adequate?
Are backup pumps available?
Is the site free of excessive leaking?
Comment:
Primary Clarifier
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the sludge blanket level acceptable?
Is the sludge blanket level acceptable? (Approximately'/. of the sidewall depth)
Comment: A polymer (flocculent) is added prior to clarification to enhance settling.
Flow Measurement - Effluent
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Comment: Effluent flows from Outfall 001 are measured by pump logs (calculations
involving # of pumps, pump rates, pump run times, etc.). Outfall 002 flow is measured
by staff gauge and weir (with supporting calculations) and Outfall 004 flow is measured
by an ultrasonic flow meter and flume.
Effluent Pipe
Is right of way to the outfalt properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Yes No NA NE
■ nnn
ninon
■ nnn
u nnn
Yes No NA NE
n n■n
® nnn
®nnn
■ nnn
n nn
n nn
nnpan.
nnn
' nnn
annn
Yes No NA NE
n mm0
❑n■p
CIDEO
W HEW
Yes No NA NE
in❑n
®❑D❑
❑❑min
Page # 5

Permit: NC0004987 Owner - Facility: Marshall Steam Station
Inspection Date: 06/07/2010 Inspection Type: Compliance Sampling
Effluent Pipe
Comment: Outfall 002 effluent appeared clear with no floatable solids or foam. In
addition, no floatable solids or foam were observed at Outfall 001.
Yes No NA NE
Page # 6

uke
nergyy.
Carolinas
March 29, 2011
R'::CC€VUD
DIVISION OF VVtTER QUALITY
24AL OFFICE
Mr. Bradley Bennett
Division of Water Quality
Stormwater Permitting Unit
North Carolina Department of Environment
and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: NPDES Stormwater Permit Application
Marshall Steam Station
Dear Mr. Bennett:
CORPORATE EH S SERV/CES
Duke Energy Carolinas, LLC
526 SOUTH CHURCH STREET
CHARLOTTE, NC 28202
Mailing Address:
EC13K / P. O. SOX 1006
CHARLOTTE, NC 28201-1006
Duke Energy requests a stormwater discharge permit for the Marshall Steam Station located in
Catawba County, North Carolina. Enclosed is a check from Duke Energy in the amount of
$860.00 for the subject stormwater permitting fee; and three sets of the following documents
related to this permit request:
a. EPA Form 1;
b. EPA Form 2F;
c. EPA Form 2F Supplemental Information;
d. Available stormwater analytical data;
e. DWQ ROS Request Form;
f. ROS Form Supplemental Information;
g. Site Location Map;
h. Site Stormwater Plan Drawing
Numerous stormwater outfalls are located at the Marshall Steam Station. The accompanying
stormwater analytical data was obtained from samples collected at outfall SW007 on May 29,
2008.
Please contact me at Mark.McGary©duke-energy.com or at 704-634-7098 if you have any
questions or need any additional information,
Sincerely,
Mark McGary, P.E.
Environmental, Health & Safety
attachments
©Ill

NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Ron Lewis
Duke Energy Carolinas, LLC
Mail. Code EC13K.
526 S. Church St.
Charlotte, North Carolina 2202
Dear M.I. Lewis:
Division of Water Quality
Coleen H. Sullins Dee Freeman
Director Secretary
March .5, 201.0
SitI3 ECT: Acknowledgement of Request l r an.
Authorization to Construct
Duke Energy Carolinas, L.LC
Marshall Steam Station
W W"TP Improvements
NPDES Permit No. NC0004987
The Construction Grants and Loans Section received your request for an Authorization 'to
Construct and the supporting documentation on February 12, 2010. We will notify you and your
engineer upon completion of our review. Your project has been assigned to Ken Pohlig., P.F.
Ile can be reached at [phone].
If you have any questions concerning this matter, please co
swc/dr
cc: Jesse G. Hite, P.E. — Gannett Flemia
Charlotte, NC 28204-2622
Mooresville Regional Office
WQ Central Files
Ken Pohlig,
Steve Coffey, P.E,
ATC File 004987A04
cerely,
Seth. Robertson., P.E., Su
Construction Grants and
Design Management l ni
mea
[phone].
oans Section.
g, Inc., Suite 1008, 301 S. McDowell St.
'1633 Mail Service Center, Raleigh. North Cardin,
Location 2728 Capital BIA. Raleigh, North Carolina
Phone: 919+ r 33-69Q1 FAX 919 ?15-622S1 a Guslorr
Internet www nirmaterpuality orq
Ali Equal C)Ppsart rr//ty Af= isr,itve ActicT rrf?y.lfk,y .
None
orthCar li a
� tin*

Bever
Governor
NC
endue
NCDENR
Carolina Department of Environment, and Natura
Mr, Allen Stowe, 'titer velar t
Duke Energy
Post Office Box 1006/EC 13K
Charlotte, North Caro
Dear i r. Stove.
28201.-1006
Division of rNater Quality
H. Sullins
September 20, 2010
Rescurces
Subject, Sampling Results
Marshall Steam Station
NPDES Permit No, NC00(. 11 7
Catawba C„ountv°, N.C.
Enclosed please find the results from the laboratory an tlyses tvtt tl e samples eo
sta'e .as tvf tlt.e FC;.D treatment system at .the Marshall Steam Station. The samples a.nal,yrr,.e
samples collected during the Compliance Sampling Inspection performed on June 7, 20
Hood and Mr. Wes 'Bell of the Mooresville Regional Office. and Ms, Autumn Romanski
Regional Office,
The Outfall 002 effl
Dee -r
Se
ted at. different
ere all grab
by Ms..Donna
the. Raleigh
were co pliant witlr the permitted effluent limits, Please be
aware that the effluent total discs>lv°ecl solids value (896 mg, e:viceeded the vvttter quality stream standard
for waters designated as a water supply (500 mg,/L). Although no ittstretrrrl samples were collected, the
results of all samples collected during this inspection will be forwarded to the I iv°ision's. NPDES
Permitting Unit for their review. Please attach this letter and the analytical rests➢ts sheets try the inspection
report dated July 8, 2010 to complete your records on the inspection.
Should you have questions conswerning this rep rt, please do not hesitate to contact ..Mr. Hell at
[phone],
t tt.ctosure:
Analytical Results
Catawba County Health
WB
tntettt
aresv lle regional Office
tocatlent 610 Fast Center Ave., Suite 301 Mooresville, NO 9 t 15
Phone: [phone] Fax: (704)) 863-6040 4 Cuslomer en+ic : 1-877 3.6748
Internet http.rtportal.ncdenr.or3Jwehiwq
r quay Opportunity s Atrrrr>vo5e ACtkur rrr;ager SG% R;cyciettu 7% Post COnsumer pap r
One filorthCa oh.
Nllti/ra/ij

Name of Fac
Duke Energy
ty
arshall Ste
Station
Sample Date(s): June 7, 2010
YTICAIES _ T H E M
NPDES Permit No.; N00004987
Sample Location: FGD Influent Prior to C9ariiier
Biochemical Oxygen Demand
(BOD5)
Total Dissolved Solids
County: Catawba
<2 mg/L Sodium (Na)
2470
Nickel (Ni)
56 r`ng/L.
400 uglL
Chemical Oxygen Demar d
150 mg/L Lead (Pb)
Chloride
7600 mg/L Antimony (Sb)
Fluoride
Sulfate
100.0 mg/L* Selenium (Se)
260 gig/L
1000 prig!L*
4600 erg/L
1200 mg/L Tin (Sn)
Silver (Ag)
Aluminum (Al)
100 p.Eg/L"
170000 irgtL
1000 pig/12
Thallium (TI)
Titanium (Ti)
Arsenic (As)
230 _ig(L Vanadium (V)
1000 ,kg/L*
3600 ttg/L
440 kg/L.
Boron (B)
160000 Zinc (Zngift_
Barium (Ba)
1700 p,g/L Total Phosphorus 3.4 rng/L
Beryllium (Be) 12 erg/L
Calcium (Ca)
Cadmium (Cd)
Cobalt (Co)
Ammonia -nitrogen (NF1,39N) 6.7 mg/L
4400 mg/L Total Kjeldahl Nitrogen (TKN) 13 mg/L
11 prg/L
150 p.rg/L
Nitrate/Nitrite-nitrogen (NO2 + NO3) 28 mg/L
Total Nitrogen
41 mg/L
Chromium (Cr) 320 tig/L
Copper (Cu)
Iron
Fe)
330 trg/L
190000.
Hg) 4.5 Egg/L
Note: indicates elevated PQL due to matrix
interference and/or sample dilution
No Field Analyses were obtained
Potassium (K) 80 mg/L
ithurn
Magnesium (Mg)
360 pig/L
1400 mg/'
ganese (Mn)
10000 pig/L.
Molybdenum (Mo)
1000 prg/l-*

ANALYTICAL RESULTS SHEET
Name of Facility:
Duke Energy Marshall Steam Station
Grab: ® Composite: ❑
Sample Date(s): June 7, 2010
NPDES Permit No.: NC0004987
Sample Location: FGD Clarifier Effluent
County: Catawba
Biochemical Oxygen Demand
(RODS)
<2 mg/L
Sodium (Na)
-
54 mg/L
Total Dissolved Solids
17100 mglL
Nickel (Ni)
180 µglL
Chemical Oxygen Demand
120 mg/L
Lead (Pb)
<10 µg/L
Chloride
5500 mg/L
Antimony (Sb)
20'0 µg/L*
Fluoride
<100.0 mg/L*
Selenium (Se)
390 µg1L
Sulfate
, 1100 mg/L
Tin (Sn)
200 µg/L*
Silver (Ag)
50 ug/L*
Thallium (TI)
200 µg/L*
Aluminum (Al)
380 µgIL
Titanium (Ti) ,
100 µg/L*
Arsenic (As)
10 µgIL*
Vanadium (V)
<25 µgIL
Boron (B)
170000 µg1L
Zinc (Zn)
51 µg1L
Barium (Ba)
610 µg/L •
Total Phosphorus
0.02 mg/L
Beryllium (Be)
<5 µg/L .
Ammonia -nitrogen (NH3-N)
6.6 mg/L
Calcium.(Ca)
3100 mglL
Total Kjeldahl Nitrogen (TKN)
10 mglL
Cadmium (Cd)
7.8 µglL
Nitrate/Nitrite-nitrogen (NO2 + NO3)
33 mg/L
Cobalt (Co)
57 µg/L
Total Nitrogen .
43 mglL
Chromium (Cr)
<10 µg/L
•
Copper (Cu)
20 µglL*
Note: * indicates elevated PQL due to matrix
interference and/or sample dilution
Iron (Fe)
410 µg/L
Mercury (Hg)
4.6 µg/L
FIELD ANALYSES
Potassium (K)
25 mglL
Temperature
39.5°C
Lithium (Li)
170 µg/L
pH
6.5 SU
•
Magnesium (Mg)
1300 mg/L
Dissolved Oxygen
3.67 mg/L
Manganese (Mn)
9100 µg/L
% Saturation
54 %
Molybdenum (Mo)
200 µg/L*
Conductivity
20900
umhos/cm

ANALYTICAL RESULTS SHEET
Name of Facility:
Duke Energy Marshall Steam Station
n
Grab: Composite:
Sample Date(s): June 7, 2010
NPDES Permit No.: NC0004987
Sample Location: FGD EQ Basin Effluent
County: Catawba
Biochemical Oxygen Demand
(BOD5)
<2 mg/L
Molybdenum (Mo)
200 µg/L*
TotahDissolved Solids
6970 mg/L
Sodium (Na)
22 mg/L
Chemical Oxygen Demand
33 mg/L
Nickel (Ni)
71 µg/L
Total Organic Carbon
2.7 mg/L
Lead (Pb)
<10 µg/L
Chloride
2700 mg/L
Antimony (Sb)
200 µgfL*
Fluoride
<40.0 mglL*
Selenium (Se)
140 µg/L
Sulfate
580 mglL
Tin (Sn)
200 µg/L*
Silver (Ag)
50 µglL*
Thallium (TI)
200 µgIL*
Aluminum (AI)
240 µg/L
Titanium (Ti)
<10 µg/L
Arsenic (As)
10 µg/L*
Vanadium (V)
<25 µg/L
Boron (B)
68000 µg/L
Zinc (Zn)
18 µg/L
Barium (Ba)
220 µg/L
Total Phosphorus
0.02 mg/L
Beryllium (Be)
<5 µg/L
Ammonia -nitrogen (NH3-N)
2.8 mg/L
Calcium (Ca)
1100 mg/L
Total Kjeldahl Nitrogen (TKN)
4 mg/L
Cadmium (Cd)
2.6 µg/L
Nitrate/Nitrite-nitrogen (NO2 + NO3)
14 mg/L
Cobalt (Co)
<50 µg/L
Total Nitrogen
18 mg/L
Chromium (Cr)
<� 0 µglL
Note: * indicates elevated PQL due to matrix
interference and/or sample dilution
Copper (Cu)
20 µglL*
Iron (Fe)
220 µg/L
FIELD ANALYSES
Mercury (Hg)
<0.20 µg/L
Temperature
28.4°C
Potassium (K)
11 mg/L
pH
6.76 SU
Lithium (Li)
65 µg/L
Dissolved Oxygen
5.09 mg/L
Magnesium (Mg)
480 mg/L
% Saturation
77 %
Manganese (Mn)
3500 µg/L
Conductivity
8900
umhos/cm

ANALYTICAL RESULTS SHEET
Name of Facility:
Duke Energy Marshall Steam Station
❑
Grab: 0 Composite:
Sample Date(s): June 7, 2010
NPDES Permit No.: NC0004987
Sample Location: Outfall 004
County: Catawba
Biochemical Oxygen Demand
2.9 mg/L
Molybdenum (Mo)
200 ug/L*
Total Organic Carbon
7.6 mg/L
Sodium (Na)
21 mg/L
Total Dissolved Solids
8070 mg/L
Nickel (Ni)
69 jig/
Chemical Oxygen Demand
34 mg/L
Lead (Pb)
<10 µg/L
Chloride
2500 mg/L
Antimony (Sb) •
200 µg/L*
Fluoride
<40.0 mg1L*
Selenium (Se)
94 µg1L
Sulfate
580 mg/L
Tin (Sn)
200 µgfL*
Silver (Ag)
50 µg/L*
Thallium (TI)
200 µg/L *
Aluminum (AI)
52 µg/L
Titanium (Ti)
<10 µg/L
Arsenic (As)
10 µg/L*
Vanadium (V)
<25 µg/L
Boron (B)
70000 µg/L
Zinc (Zn).
12 µg/L
Barium (Ba)
190 µg/L
Total Phosphorus
0.03 mglL
Beryllium (Be)
. <5 µgIL
Ammonia -nitrogen (NH3-N)
0.65 mg/L
Calcium (Ca)
1000 mg/L
Total Kjeldahl Nitrogen (TKN)
2.3 mg/L
Cadmium (Cd)
1.6 µg/L
Nitrate/Nitrite-nitrogen (NO2 + NO3)
11 mg/L
Cobalt (Co) �,
<50 µg/L
Total Nitrogen
13.3 mglL
Chromium (Cr}
<10 µg/L
Note: * indicates elevated PQL due to matrix
interference and/or sample dilution
Copper (Cu) .
20 µglL*
FIELD ANALYSES
Iron (Fe)
220 µg/L
Flow
906 gpm
Mercury (Hg)
4.5 µgfL
Temperature
27.9°C
Potassium (K)
11 mg/L
pH
6.12 SU
Lithium (Li)
69 µg/L
Dissolved Oxygen-
4.78 mg/L
• Magnesium (Mg)
460 mg/L
% Saturation
68.7 %
Manganese (Mn)
4000 µgIL
Conductivity
8200
umhos/cm

ANALYTICAL RESULTS SHEET
Name of Facility:
Duke Energy Marshall Steam Station
Sample Date(s): June 7, 2010
Sample Location: Outfall 002 (Final Effluent)
Biochemical Oxygen Demand
(BOD5)
Total Suspended Solids
Total Organic Carbon
Total Dissolved Solids
Chemical Oxygen Demand
Chloride
Fluoride
Sulfate
Silver (Ag)
Aluminum (Al)
Arsenic (As)
Boron (B)
Barium (Ba)
Beryllium (Be)
Calcium (Ca)
Cadmium (Cd)
Cobalt (Co)
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Mercury (Hg)
Lithium (Li)
Magnesium (Mg)
Manganese (Mn)
<2 mg/L
<6.2 mg/L
3.0 mg/L
896 mg/L
<20 mg/L
220 mg/L
<4.0 mg/L*
110 mg/L
50 µg/L*
3.70 µg/L
10 µg/L*
5500 µg/L
98 µgIL
<5 µgIL
110 mglL
<1.0 µg/L
<50 µg/L
<10 µg/L
20 µg/L*
120 µgIL
<0.20 µg!L
69 p,glL
46 mg/L
820 µg/L
Grab: El
Composite: ❑
NPDES Permit No.: NC0004987
County: Catawba
Sodium (Na)
Nickel (Ni)
Lead (Pb)
Antimony (Sb)
Selenium (Se)
Tin (Sn)
Thallium (Ti)
Vanadium (V)
Zinc (Zn)
Total Phosphorus
Ammonia -nitrogen (NH3-N)
Total Kjeldahl Nitrogen (TKN)
Nitrate/Nitrite-nitrogen (NO2 + NO3)
8.1 mg/L
20 µg/L
<10 µg/L
200 µg/L*
50 µgIL*
200 µg/L*
200 µgIL*
<25 µglL
22 µgIL
<0.02 mg/L
1.0 mg/L
3.5 mg/L
1.1 mg/L
Total Nitrogen 4.6 mglL
Note: * indicates elevated PQL due to matrix
interference and/or sample dilution
pH
Dissolved Oxygen
Temperature
% Saturation
Conductivity
FIELD ANALYSES
6.14 SU
5.22 mglL
28.6°C
77.6 %
1100
umhoslcm

North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
April 27, 2010
Mr. Ron Lewis
Duke Energy
Mail Code EC13K
526 S. Church Street
Charlotte, North Carolina 28202
SUBJECT: Authorization to Construct
A to C No. 004987A04
Duke Energy
Marshall Stearn Station
Flue Gas Desulfurization WW1P Improvements
Phase 2: Selenium Reduction System
Catawba County
Dear Mr. Lewis:
A letter of request for an Authorization to Construct was received February 12, 2010, by
the Division of Water Quality (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 Flue Gas Desulfurization (FGD) Wastewater
Treatment Plant, with discharge of treated wastewater into the Ash Settling Basin (via Internal
Outfall 004), which discharges into the Catawba River (Lake Norman, Outfall 002) in the
Catawba 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 a new 6-way inlet flow splitter box; 8-inch gravity distribution piping; six
(6) Vertical Flow Wetlands for selenium removal (to replace existing wetland cells 1A,
1B and IC) designated as VFW cells 1A, 1B, 1C, ID, 1E and 1F, with each cell
consisting of a geosynthetic clay liner, 18 inches of liner cover material, 15 inches of
coarse underdrain material with 8-inch perforated pipe, and 3.75 feet of spent mushroom
compost (97,500 ft3); 18-inch and 24-inch gravity drain pipe to a new 3-way outlet flow
splitter box; 12-inch gravity drain pipe to existing 2A, 2B and 2C wetland cells; and
removal of the temporary 18-inch HDPE gravity bypass pipe between the equalization
basins and wetland cells 2A, 2B, and 2C (installed under ATC #004987A03, issued
February 18, 2010); in conformity with the project plans, specifications, and other
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St, Raleigh, North Carolina 27604
Phone; 919-807-6300 N FAX: [phone] Customer Service: 1-877-623-6748
Internet: MAY.ncwaterquality,org
An Equal Opporiunity \ Affirmative Action Employer
One
NorthCarolina
Naturally

Mr. Ron .Lewis
April 27, 2010
Page 2
supporting data subsequently filed and approved by the Department of Environment and
Natural Resources.
Phis Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Peiniit No. NC0004987 issued June 15, 2009, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0004987.
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 Division.
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 the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Mooresville 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 Perrnittee 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 Perrnittee 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.

r
Mr. Ron Lewis
April 27, 2010
Page 3
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.
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 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,
Coleen H. Sullins
kp: sr
`
cc: Jesse G. Hite, Jr., P.E. — Gannet Fleming, Inc., Suite 1008, 301 S. McDowell St.,
Charlotte, NC 28204-2622
Catawba County Health Department
DWQ Mooresville Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File No. 004987A04

Duke Power
Marshall Steam Station
Flue Gas Desulfurization WWTP Improvements
Phase 2: Selenium Reduction System
A To C No. 004987A04
Issued April 27, 2010
Engineer's Certification
I, , 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 Marshall Steam Station Flue Gas
Desulfurization WWTP, located at the intersection of NC Highway 150 and NCSR 1841 in
Catawba 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 new 6-way inlet flow splitter box; 8-inch gravity distribution piping; six
(6) Vertical Flow Wetlands for selenium removal (to replace existing wetland cells 1A,
1B and 1C) designated as VFW cells 1A, 1B, 1C, 1D, lE and 1F, with each cell
consisting of a geosynthetic clay liner, 18 inches of liner cover material, 15 inches of
coarse underdrain material with 8-inch perforated pipe, and 3.75 feet of spent mushroom
compost (97,500 ft3); 18-inch and 24-inch gravity 'drain pipe to a new 3-way outlet flow
splitter box; 12-inch gravity drain pipe to existing 2A, 2B and 2C wetland.ceIls; and
removal of the temporary 18-inch HDPE gravity bypass pipe between the equalization
basins and wetland cells 2A, 2B, and 2C (installed under ATC #004987A03, issued
February 18, 2010); 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.
Date - _.
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center=''
Raleigh, NC 27699-1633 1
� ;F

fl'LL
Memo To:
DIVISION OF WATER QUALITY
February 5, 2010
Ken Pohlig, PE, Project Review Engineer
Design Management Unit
Construction Grants and Loans
From: Rob Krebs 60&, Fox' RK .
Prepared By: Michael Parker OrP
Subject: Duke Energy — Marshall Steam Station
Authorization to Construct
Flue Gas Desulfiuization
NPDES Permit No. NC0004987
Catawba County
Per your request, this Office has reviewed the subject ATC request and supporting
documents received by this Office on January 27, 2010 from Duke Energy (DE) requesting
authorization to modify the existing Constructed Wetlands Treatment System (CWTS) at Duke
Energy's Marshall Steam Station. The modifications involve the installation of by-pass piping
that will divert water from three wetland treatment cells (designated as 1A, 1B, and 1 C) so that
the three cells can be converted from surface flow wetland cells to vertical flow wetland cells.
This piping will allow de -watering of the cells during construction and convey the Flue Gas
Desulfurization wastewater around the construction area. The remaining cells of the CWTS will
remain online during construction, and DE is not expecting a significant drop in treatment
efficiency nor compliance issues with the subject permit.
Therefore, pending a final technical review and approval by CG&L, it is recommended
that the request for an ATC be approved.
H:latclatc101marshall. doc

Governor
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
verly Eaves Perdue Coleen H. Sullins Dee Freeman
Director Secretary
January 25, 2010
MEMORANDUM
TO: Rob Krebs, Regional Water Quality Supervisor
Mooresville Regional Office, Division of Water Quality
FRO
Ken .Pohlig, Project Review Engineer
Design Management Unit
SUBJECT: Request for an Authorization to Construct
Duke Energy, Marshall Flue Gas Desulfurization WWTP
NPDES Permit No, NC0004987
Plans, specifications and supporting documents have been received for the subject
project. It is requested that comments and recommendations, including the items listed below,
received by February 25, 2010 from the Regional Office Staff:
CAMA
Compliance With NC Well Construction Standards
Groundwater Comments
X Recommendations for inclusion in the Authorization to Construct
Recommendations for inclusion in the Non Discharge Permit
Schedule for Issuance of the NPDES Permit
SOC, or Other Schedules Which Must be Met.
Standby Power Needs
Status of Stormwater Permit
Plan documentsdocurnents are submitted as follows for your reference, review, and comments on the above
X Plans and Specifications
Subsurface/Soils Report
Power Outage Information
Other
If you have any questions, please contact ine at [phone].
Attachment
swc
cc: Ken Pohlig, P.E.
Steve Coffey, RE.
ATC File 004987A03
633 ii Sentice Center, Rale9h, North Ca tna 27*1633
°cation: 2728 Capital Btvd, Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] Customer Service: 1-677-623-6748
Internet: www,ncwalerguality,org
AR Equai Opportunq Alfinatve Amon Empicyot
One
NorthCarohna
aturaiij

oo We7 3
rr .
North Carolina Division Of Water Quality .'
Construction Grants & Loans Section
Authorization To Construct (ATC) Application or STAG
(To Be Used On and After August 1, 2007 TIONGRANTS &
LOAN SECTION
BAN 14 MO
Date: 1/8/2010
Permittee/Owner Name: Duke Energy
Contact Person: Ron Lewis
Address: Mail Code EC13K, 526 S. Church Street
Charlotte, NC 28202
Telephone Number: [phone]
Professional Engineer of Record: Jesse G. Hite, Jr, P.E.
Engineering Firm: Gannett Fleming, Inc.
Address: Suite 1008, 301 South McDowell St.
Charlotte, NC 28204-2622
Telephone Number: [phone]
Please Note: The following items and information must be
submitted to be considered a complete application
package. If any applicable item is missing the package will
be returned as incomplete.
1
2
3
4
5
6
7
8
9
10
11
12
13
Letter of request for ATC from Permittee/Owner or
authorized agent with written authorization.
Brief description of the proposed project.
Complete copy of the NPDES permit or public notice of
a draft NPDES permit.
Design capacity in Million Gallons per Day (MGD).
If new or expanding design capacity is greater than or
equal to 0.5 MGD, include a copy of Finding Of No
Significant Impact (FNSI).
Two sets of plans: signed, sealed, and dated by a NC
Professional Engineer and stamped "Final Drawing -
Not Released For Construction".
Two sets of technical specifications: signed, sealed,
and dated by a NC Professional Engineer.
Two sets each of process, design, buoyancy, and
hydraulic profile calculations: signed, sealed, and dated
by a NC Professional Engineer.
Hydraulic profile and a flow schematic with sizes of
major components on 8%" X 11" paper.
Documentation that a Soil & Erosion Control permit
application has been submitted to the Division of Land
Resources.
Residuals Management Plan for all new or expanding
facilities producing residuals, or when modifying
residual facilities.
Construction Sequence Plan for all modifications.
110 volt GFCI receptacle and potable water source
included on plans.
Information Is
Provided
Remarks/Explanation
Cover Letter to ATC Form
Exhibit A Attached
Exhibit B Attached
1.27 MGD
Proposed VFW Modification does not
expand current capacity of system
Exhibit C Attached
Exhibit D Attached
Exhibit E Attached - Hydraulic
calculations for temporary bypass pipe
Exhibit F Attached
All earth disturbance activities for
Dewatering Plan will be within existing
cells
No residuals will be associated with
the Dewatering Plan
Included in Exhibits C and D
Dewatering Plan does not involve
treatment works or disposal system

Please Note: The following items and information must be
submitted to be considered a complete application
package. If any applicable item is missing the package will
be returned as incomplete.
Information Is
Provided
Remarks/Explanation
14
Hydrogeologic information must be provided if a
potential for groundwater contravention exists.
El
All earth disturbance activities will be
contained within existing lined cells
15
16
17
18
19
20
21
22
23
24
25
26
For abandonment of WWTPs: a statement that the
facility will be properly disconnected.
All property lines, construction easements, permanent
easements, and ROW shown.
All wells within 200 feet of project shown.
All houses and places of public assembly within 100
feet shown.
Wetlands, watercourses, and drainage features within
50 feet of all wastewater treatment or storage facilities
shown.
Identify on the plans each water body's watershed
classification.
Plan sheets for all applicable disciplines.
Reliability per NCAC 2T .0505 (I).
Identify 100 year flood elevation on plans.
North arrow on each plan sheet.
Horizontal and vertical control.
Subsurface investigation for new structures.
Municipal/Public Facilities, also include the following:
27
28
29
30
31
32
Engineer's Certification signed, sealed, and dated by
the Engineer Of Record stating that the project
complies with G.S. 133-3.
Minority Business Forms for Local Government
Projects.
Minority Business Guide.
Dispute Resolution with mediation for Local
Governments.
Contract Duration included.
Projects funded through CG&L must include the
Submittal Checklist, found under Plans &
Specificiations at:
http://www.nccql.netlEngineeringlplans.html
No abandonment will be involved in
Dewatering Plan
All activities will be on property owned
by Duke Energy at the Marshal! Steam
Station
None
None
Dewatering Plan is within the footprint
of existing constructed wetland
treatment system
Catawba River Basin (Lake Norman)
WS-IV and B CA Waters
See Exhibit C Plan Sheets
Not Applicable
Not Applicable
See Exhibit C Plan Sheets
See Exhibit C Plan Sheets
Not Applicable
Not Applicable
Not Applicable
Not Applicable
Not Applicable
Not Applicable
Not Applicable

EXHIBIT A
Duke Energy Marshall FGD Wastewater Selenium Reduction Prbject
Bypass Piping and Dewatering Plan
Request for Authorization to Construct
PROJECT DESCRIPTION
CEfie
g 2010
o sFarG WIS
The purpose of the Marshall Flue Gas Desulfurization (FGD) Waste Water Selenium Reduction
Project is to modify the existing Constructed Wetland Treatment System (CWTS) at Duke Energy's
Marshall Steam Station to improve the removal of selenium. The modification will replace the first set of
three (3) surface flow wetland (SFW) cells, identified as Wetland Cells 1A, 1B, and 1C, with six vertical
flow wetland (VFW) cells to be located between the existing pair of equalization basins and the second
set of existing SFW cells identified as Wetland Cells 2A, 2B, and 2C. The project will consist of two
phases: (1) a bypass piping and dewatering plan and (2) construction plans for the VFW Treatment
System. This request is for authorization to construct the bypass piping which will convey the FGD
wastewaters around the construction area during construction and allow dewatering of the three SFW
cells to be replaced by the VFW cells. A separate ATC request for the Phase 2 construction phase of the
project will be submitted in February 2010.
As shown on the attached drawings, an 18-inch HDPE bypass pipe will be installed between the
equalization basins and Wetland Cells 2A, 2B, and 2C. The bypass pipe will be connected to the inlet
pipes currently conveying wastewaters to Wetland Cells IB and 1C. During the bypass period, Wetland
Cell 1A wilI remain off-line. The 18-inch pipe will convey the wastewaters to the downstream wetland
cells, where flow will be split three ways to Wetland Cells 2A, 2B, and 2C by control valves and separate
12-inch pipes. The bypass pipe will be laid on the surface of the ground and supported by retaining pipes
driven along the downslope side of the pipe. To allow sufficient time to install and connect the bypass
system, the equalization basins will be drawn down to provide extra storage capacity so that flows to the
connecting pipes can be temporarily closed to allow completion of the connections. After the wetland
cells are bypassed, drainage trenches and sumps will be cut into their existing substrates. The sumps will
be periodically pumped, with discharge of the pumped waters alternating between Wetland Cells 2B and
2C until the substrate is adequately dewatered for removal, stockpiling, and reuse as liner cover in the
new VFW cells. Surface vegetation and organic matter removed from the dewatered cells will be
mulched and spread in the remaining downstream wetland cells as an organic amendment.
Pending approval of this ATC request, the bypass and dewatering will be initiated in February
2010. The bypass will remain in place throughout the construction of the VFW system, which is
scheduled for completion in April 201 I. Because the remaining wetland cells of the existing CWTS will
remain on-line, no significant change in selenium removal or reduction in compliance with current
NPDES levels is expected during the bypass period.

EXHIBIT B
Duke Energy Marshall FGD Waste Water Selenium Reduction Project
Bypass Piping and Dewatering Plan
Request Authorization to Construct
COPY OF NPDES PERMIT

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
June 15, 2009
Mr. David Renner, General Manager III
Duke Energy Carolinas, LLC- Marshall Steam Station
8320 East NC Highway 150.
Terrell, North Carolina 28682
Subject: NPDES major modification
Permit No. NC0004987
Marshall Steam Station
Catawba County
Dear Mr. Renner:
Division personnel have reviewed and approved your request for major modification.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is modified
pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency dated October 17, 2007 (or as subsequently amended.)
This permit modification addresses the request for a major modification regarding the
elimination or modification of monitoring frequencies for several constituents discharged from
Outfalls 002 and 004.
The Division has reviewed Duke Energy's comments submitted on April 30, 2009 and has
the following responses.
Regarding the request that the weekly average selenium limit be changed to a monthly
average limit. The Division's established procedure for compliance periods for metals shall be
daily maximum and weekly average limits. North Carolina water quality standards are adopted
based on chronic criteria. Based on the Division's procedure, effluent limitations for selenium .
will be added at Outfall 002 and weekly monitoring for selenium will remain. at Outfall 004. The
limits will be a weekly average of 29 ug/l and a daily ma tdmum of 56 ug/1. These limits are
based on the results of a reasonable potential analysis that indicated the potential to exceed the
North Carolina standard for selenium. Because of the complexity of selenium removal and
reduction, Duke Energy has requested and will be given a three year compliance schedule to
meet this limit. The compliance schedule by Duke Energy is included in Special Condition A. 23
1617 Mail Service Center, Raleigh, North Carolina 2769e-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1.877.623.6748
Internet: ;;ww,ncwaferquatity.org
An Equal Opportunity) A'6nrative Action Employe:
Novi thCarolina
Naturally

Letter to Mr. Renner
Page 2
with specific dates corresponding to the timetables submitted. Duke Energy must come into
compliance with the selenium limit by July 1, 2012.,
Regarding the language in the toxicity condition, staff has confirmed that the forms
(TGP3B and THP3B) listed in paragraph 5 are correct.
The following modifications included in the March 24th draft remain in the final permit
modification:
• Weekly effluent monitoring for cadmium, chromium, and silver at Outfall 002 and Outfall
004 has been deleted. Data analysis indicated that there was no reasonable potential for
these parameters to exceed water quality standards in the receiving stream. There was
very minimal detection of these three metals in the review of three years 'of effluent data.
• Weekly effluent monitoring for total suspended solids (TSS) at Outfall 004 has been
deleted. OutfalI 004 is an internal outfall discharging into the ash basin (Outfall 002).
Because TSS has an effluent limit and monitoring at Outfall 002, the monitoring
requirement at Outfall 004 can be removed.
o The monitoring frequency for total arsenic, chloride, total mercury, and total nickel has
been reduced from weekly to quarterly at Outfall 002 and Outfall 004. Analysis of the
data indicated there was no reasonable potential shown to exceed the state water quality
standards. Because of the effluent concentrations discharged, these constituents are still
considered to be parameters of concern. Quarterly monitoring is the minimum frequency
required in order for the Division to evaluate future effluent data.
• The monitoring frequency for total zinc has been reduced from weekly to monthly
monitoring at Outfall 002 and Outfall 004. The reasonable potential analysis indicated
the potential to only exceed the acute allowable concentration for this action level
parameter. Because of a record of consistently passing the toxicity tests and zinc
concentrations not be problematic, it is recommended that the monitoring frequency can
be reduced from weekly to monthly.
• Please note that there have been minor Language changes and the addition of a new
paragraph regarding data submittal in special condition A.14. Chronic Toxicity Pass/Fail
permit limit. (The new paragraph is located second from the end of the condition).
If any parts, measurement frequencies or sampling requirements contained in this permit
modification 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 a demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable. The Division may require modification
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, Coastal Area Management Act, or any other Federal or Local
governmental permits may be required.

If you have any questions or need additional information, please contact Ms. Jacquelyn
Nowell at telephone number [phone] or email jackie.nowell®ncdenr.gov.
Sfnerely,
C. Teen II Sullins
cc: EPA Region IV
Mooresville Regional Office/Surface Water Protection Section
DEH/ Public Water Supply Section/Mooresville Regional Office
Aquatic Toxicology Unit
NPDES File/NC0004987
Central Files
1617 Mail Service Center, Raleigh, North Cardina 27699-1617
t_ocalton: 512 N. Salisbury 51. Raleigh, North Carolina 27604
Phone: [phone] FAX: 919.807-B4921 Customer Service:1.277-623.6748
Internet wwtw.ncwaterquetity.org
Ao Equsl Oppotunityl Affirmative Action Employe.
NcgthCarolina
naturally

PERMIT NO. NC0004987
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 provisions of North Carolina General Statute 143-215.1, other
Iawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control
Act, as amended,
Duke Energy Carolinas, LLC
is hereby authorized to discharge wastewater from a facility located at
Marshall Stearn Station
At the intersection of NC Highway 150 and NCSR 1842
Terrell
Catawba County
to receiving waters designated as the Catawba River (Lake Norman) in the Catawba
River Basin in accordance with effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III and W hereof.
This permit shall become effective July 1, 2009.
This permit and authorization to discharge shall expire at midnight on April 30, 2010.
Signed this day June 15, 2009.
'C--oicen H. Sullins, Director
f Division of Water ty
Quali
By Authority of the Environmental Management Commission
Page 1 of 13

PERMIT NO. NC0004987
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits . issued to this facility, whether for operation or discharge are
hereby revoked, and as of this issuance, any previously issued permit bearing this number is
no longer effective. Therefore, the exclusive authority to operate and discharge from this facility
arises under the permit conditions. requirements, terms, and provisions included herein.
Duke Energy Carolinas, LLC
is hereby authorized to:
1. Continue to discharge once -through cooling water and intake screen backwash
through outfall 001; treated wastewater (consisting of metal cleaning wastes,
coal pile runoff, ash transport water, domestic wastewater, low volume wastes,
and flue gas desulfurization (FGD) wet scrubber wastewater) from the ash
settling basin through outfall 002; treated FGD wet scrubber wastewater
through internal outfall 004 (upstream of the ash settling basin); yard sump
overflows through outfalls 002A and 002B; and non -contact cooling water from
the induced draft fan control house through outfall 003. All discharges result
from activities at Duke Energy's Marshall Steam Station at the intersection of
NC Highway 150 and NCSR 1841 in Terrell, Catawba County;
2. Continue to operate a FGD wet scrubber wastewater treatment system
discharging to the ash settling basin through internal outfall 004; and
3. Discharge from said treatment works at the locations specified on the attached
map into the Catawba River (Lake Norman) which is classified WS-IV and B CA
waters in the Catawba River Basin.
?age 2of13

Outfall Information
O)tfall w;
RetTivha Stream;
1 kg:*
t.onoitude;
001
Catawba River
35°35'42'
80°57'44"
OutfarLi, 002
RecgivirSt{gam' Catawba River
�aut�d 35°36'22'
Lenaitude; 80°57'40-
f
Outfali A
Receivina Stream;
Latitude:
10-1 g_ifude:
002A and 0023
Catawba River
35°35'57'
80°57'47'
Outtall k_
Receiving Stream+
Latitude!
Longitude:
003
Catawba River
35°35'51 "
80°57'45"
Duke Power Corporation
NC0004987
Marshall Stearn Station

PART I
SECTION A: FINAL LIMITATIONS AND CONTROLS
1. Effluent Limitations and Monitoring Requirements (Outfall 001)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Dudall 001 (once -through cooling water). Such
discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow.(MGD)
Monitor & Report
Daily
Pump logs or
similar
readings
Effluent
Temperature
(November 1- June 30)
33.3 eC
Daily
Grab
Effluent
Temperature •
(July 1 - October 31)
34.4 aC
Daily
Grab
Effluent
Free Available Chlorines
0.2 rng/L
0.5 mg/L
Daily
Grab
Effluent
NOTES:
1 Once -through cooling water shall not be chlorinated. Should the facility wish to chlorinate once -
through cooling water, a permit modification must be issued prior to commencement of chlorination.
The monitoring requirement and effluent limitations only apply if chlorination is commenced.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
The Regional Administrator has determined pursuant to Section 316(a) of the Act that the thermal
component of the discharge assures the protection and propagation of a balanced, indigenous population
of shellfish and wildlife in and on the receiving body of water. Water quality temperature standards must
be maintained outside the approved 316(a) mixing zone.
Page 4 of 13

PART I
2. Effluent Limitations and Monitoring Requirements (Outfall 002)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfall 002 (ash settling basin discharge). Such
discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
Flow (MGD)
Oil and Grease
Total Suspended Solids'
Total Arsenic
DISCHARGE LIMITATIONS I MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily Measurement
Maximum Frei uezx
Monitor & Report
9.0 xng/L
20.0 mg/L 05.0 mg/L
Monitor & Report
12.0m1/L
Monthly
Quarterly
Monthly
Sample
Type
Sample Location
Pump logs or
similar readings
Grab
Grab
Effluent
Effluent
Effluent
Quarterly
Grab
Effluent
Chloride
Monitor & Report
Quarterly
Grab
Effluent
Total Copper
Total Iron
1.0 mg/L 1.0 mg!.L, See note 3
Grab
Effluent
1.0 mg/I, ; 1.0 mg/I., See note 3
Grab
Effluent
Toral Mercury
Monitor & Report
Quarterly
Grab
Effluent
Total Nickel
Monitor & Report
Quarterly
Grab
Effluent
Total Selenium
Total Selenium'
Total Zinc
Total Nitrogen
(NO2+NO3±TKN)
Total Phosphorus
Monitor & Report Weekly
�29 ug/1 56 ug/1
Weekly
Grab
Effluent
Monitor & Report Monthly
Grab
Grab
Effluent
Effluent.
Monitor & Report Monthly
Monitor & Report Quarterly
Grab
Grab
Effluent
Effluent
Chronic Toxicity
See Part I, Section A, #14 Quarterly
Grab
Effluent
p Ii
Between 6.0 and 9.0 Standard Units Monthly
Grab
Effluent
Pollutant Analysis
See part I, Section A, #20
Grab
Effluent
NOTES:
1 Effluent sampling shall be conducted at the discharge from the ash settling basin prior to mixing with
any other waste stream(s).
2 A total suspended solids monthly average of 40 mg/L is permitted provided the Permittee can
demonstrate that the difference between the monthly average of 20 mg/L and 40 mg/L is the result of
the concentration of total suspended solids in the intake water.
3 Monitoring shall be per occurrence of chemical metal cleaning and samples shall be from a
representative discharge.
4 There will be a three year compliance schedule for the weekly average limit of 29 ug%l and the daily
maximum limit of 56 ug/I for selenium. The limits shall become effective on July 1, 2012. See Part I
Section A.23 for Selenium Compliance Schedule
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 5 of 13

PART I
3. Effluent Limitations and Monitoring Requirements (Outfall OO2A)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfall 002A (yard sump #1 overflows). Such
discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow (MGD)
L
Episodic
Estimate
Effluent
pH
Episodic
Grab
Effluent
Total Suspended Solids
Episodic
Grab
Effluent
Total, Iron
See note 2
Grab
Effluent
NOTES:
1 Effluent samples shall be collected at a point upstream of the discharge to the Catawba River.
2 Sampling for Iron is required when TSS is reported as greater than 100 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No
Flow' shall be clearly written on the front of the OMR Episodic sampling is required per sump overflow
occurrence lasting longer than one hour. All samples shall be of a representative discharge.
Page 6 of 13

PART I
4. Effluent Limitations and Monitoring Requirements (Outfall 002B)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfall 002B (yard sump #2 overflows). Such
discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location=
Flow (MGD)
Episodic
Estimate
Effluent
pH
Episodic
Grab
Effluent
Total Suspended Solids
Episodic
Grab
Effluent
Total Iron
Seenote 2
Grab
Effluent
NOTES:
I Effluent samples shall be collected at a point upstream of the discharge to the Catawba River.
2 Sampling for iron is required when 'TSS is reported as greater than 100 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words No
Flow" shall be clearly written on the front of the DMR. Episodic sampling 1s required per sump overflow
occurrence lasting Longer than one hour. All samples shall be of a representative discharge.
Pagc 7 of 11

PART I
5. Effluent Limitations and Monitoring Requirements (Outfall 003)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfanl 003 (non -contact cooling water from the
induced draft fan control house). Such discharges shall be limited and monitored by the
Pei mittee as specified below:
EFFLUENT
CHARACTERISTICS
DISCHARGE LIMITATIONS
MONITORING REQUIREMENTS _
Monthly
Average
Daily
Maximum ,
Measurement
Frequency
Sample •
Type
Sample
Location
Flow (MGD)
Temperature
Total Residual Chlorine::
Free Available Chlorine2
0.2 mg/L
0.5 mg/L
r PH
Between 6.0 and 9.0 Standard
Units
NOTES:
1 The temperature of the effluent shall be such as not to cause an increase in the temperature of the
receiving stream of more than 2.80C and in no case cause the ambient water temperature to exceed
29°C.
2 Monitoring requirements apply only if chlorine is added to the cooling water. Neither free available
chlorinenor total residual chlorine may be discharged from any unit for more than two hours in any
one day and not more than one unit in any plant may discharge free available chlorin a or total
residual chlorine at any one time.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Limitations shall be met at the discharge effluent. Monitoring frequencies are not specified as the
discharge is to the intake canal for outran 001.
Page $ of 13

PART I
6. Effluent Limitations and Monitoring Requirements (Outfall 004)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Internal Outfall 004 (treated FGD wet scrubber
wastewater to ash settling basin). Such discharges shall be limited and monitored by the
Permittee as specified below:
EFFLUENTDISCHARGE
CHARACTERISTICS
LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow (MGD)
Monitor & Report
Monthly
Pump logs or
similar
readings
E
Total Arsenic
Monitor & Report
Quarterly
Grab
E
Chloride
Monitor & Report
Quarterly
Grab
E
Total Mercury
Monitor & Report
Quarterly
Grab
E
Total Nickel
Monitor & Report
Quarterly
Grab
E
Total Selenium
Monitor & Report
Weekly
Grab
I;
Total Zinc
Monitor & Report
Monthly
Grab
E
N0'rES:
1 Sample Location: E - Effluent from the constructed wetland prior to discharge to the ash settling
basin.
All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No
Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge.
Page 9 of 13

PART I
7. DEFINITIONS
The term "low volume waste sources" means, taken collectively as if from one source, wastewater from all
sources except those for which specific limitations are otherwise established in this part. Low volume
wastes sources include, but are not limited to: Wastewater from wet scrubber air pollution control
systems, ion exchange water treatment system, water treatment evaporator blowdown, laboratory and
sampling streams, boiler blowdown, floor drains, and recirculating house service water systems. Sanitary
and air conditioning wastes are not considered low volume wastes.
The term "metal cleaning waste" means any wastewater resulting from cleaning (with or without chemical
cleaning compounds) any metal process equipment including, but not limited to, boiler tube cleaning,
boiler fireside cleaning, and air preheater cleaning.
The term, "chemical metal cleaning waste' means any wastewater resulting from the cleaning of any
metal process equipment with chemical compounds, including, but not limited to. boiler tube cleaning.
Chemical metal cleaning will be conducted according to approved Duke Power equivalency
demonstration.
The term 'TGD wet scrubber wastewater" means wastewater resulting from the use of the flue -gas
desulfurizatlon wet scrubber.
8. TOXICITY RE -OPENER CONDITION
This permit shall be modified, or revoked and reissued to incorporate toxicity limitations and monitoring
requirements in the event toxicity testing or other studies conducted an the effluent or receiving stream
indicate that detrimental effects may be expected in the receiving stream as a result of this discharge.
9. MONITORING FREQUENCIES
If the Permittee. after monitoring for at Ieast six ,months, determines that effluent limits contained herein
are consistently being met, it may be requested of the Director that the monitoring requirements be
reduced to a lesser frequency.
10. POLYCHLORINATED BIPHENYL COMPOUNDS
There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for
transformer fluid.
11. BIOCIDE CONDITION
The permittee shall not use any biocides except those approved in conjunction with the permit
application. The permittee shall notify the Director in writing not later than ninety (90) days prior to
instituting use of any additional biocide used in cooling systems which_may be toxic to aquatic life other
than those previously reported to the Division of Water Quality. Such notification shall include
completion of Biocide Worksheet Form 101 and a rnap locating the discharge point and receiving stream.
Completion of Biocide Worksheet Form 101 is not. necessary for those outfalls containing toxicity testing.
Division approval is not necessary for the introduction of new biocides into outfalls currently tested for
whole effluent toxicity.
12. INTAKE SCREEN BACKWASH
Continued intake screen backwash discharge and overflow from the settling basin are permitted without
limitations or monitoring requirements.
13. BEST MANAGEMENT PRACTICES
It has been determined from information submitted that the plans and procedures in place at Marshall
Steam Station are equivalent to that of a Best Management Practice (BMP).
Page 10of13

PART I
14. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)- OUTFALL 002
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 12%.
The permit holder shall perform at a minimum. ouarterto monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or
subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
February, May, August., and November. Effluent sampling for this testing shall be performed at the
NPDES permitted final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results In a failure or ChV below the
permit limit, then multiple -concentration testing shall be performed at a minimum. in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure" (Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods. exposure regimes, and further statistical methods are
specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -
February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed. If reporting pass/fail
results using the parameter code TGP3B, DWQ Form AT-1 (original) is sent to the below address. If
reporting Chronic Value results using the parameter code THP3B. DWQ Form AT-3 (original) is to be sent
to the following address:
Attention: Environmental Sciences Section
North Carolina Division of
Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-I621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Sectiora no later
than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if
chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the perxnittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Environmental Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring
will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Quality indicate potential impacts to the receiving stream. this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
If the Pcrmittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT
Forms submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no Iater than
the last day of the month following the month of the initial monitoring.
Page I I of 13

PART I
15. ASH SETTLING BASIN
Beginning on the effective date of this permit and lasting until expiration, there shall be no discharge of
plant wastes to the ash pond unless the permittee provides and maintains at all times a minimum free
water volume equivalent to the sum of the maximum 24-hour plant discharges plus all direct rainfall and
all runoff flows to the pond resulting from a IO-year, 24-hour rainfall event, when using a runoff
coefficient of 1.0.
During the term of the permit, the permittee shall remove settled material from the ponds or otherwise
enlarge the available storage capacities in order to maintain the required minimum volumes at all times.
Annually the permittee shall determine and report to the permit issuing authority: (1) the actual free
water volume of' the ash pond, (2) physical measurements of the dimensions of the free water volume in
sufficient detail to allow validation of the calculated volume, and (3) a certification that the required
volume is available with adequate safety factor to include all solids expected to be deposited in the ponds
for the following year. Any changes to plant operations affecting such certification shall be reported to the
Director within five days.
NOTE: In the event that adequate volume has been certified to exist for the term of the permit, periodic
certification is not needed.
16. CHEMICAL METAL CLEANING WASTES
It has been demonstrated that under certain conditions it is possible to reduce the concentration of
metals in boiler cleaning wastes in the range of 92 to 99+ percent by treatment in ash ponds. Because of
dilution problems, and the existence of boundary interface layers at the extremities of the plume, it is
difficult to prove beyond doubt that the quantity of iron and copper discharged will always be Iess than
one milligram per Inter times the flow of metal cleaning when treated in this manner.
The application of physical/chemical methods of treating wastes has also been demonstrated to be
effective in the treatment of metal cleaning wastes. However, the effectiveness of ash pond treatment
should be considered in relation to the small differences in effluent quality realized between the two
methods.
It has been demonstrated that the presence of ions of copper, iron, nickel, and zinc fn the ash pond
waters was not measurably increased during the ash pond equivalency demonstration at the Duke Power
Company's Riverbend Steam Station. Therefore, when the following conditions are implemented during
metal cleaning procedures, effective treatment for metals can be obtained at this facility:
(1) Large ash basin providing potential reaction volumes.
(2) Well-defined shallow ash delta near the ash basin influent.
(3) Ash pond pH of no less than 6.5 prior to metal cleaning waste addition.
(4) Four days retention time in ash pond with effluent virtually stopped.
(5) Boiler volume less than 86,000 gallons.
(6) Chemicals for cleaning to include only one or more of the following:
(a) Copper removal step- sodium bromate, NaBrOa: ammonium carbonate, (NH4)2CO3; and
ammonium hydroxide, NH4OH.
(b) Iron removal step -hydrochloric acid, HCI: and ammonium bifluoride, (NI-14)BF2 and proprietary
inhibitors.
(7) Maximum dilution of wastes before entering ash pond 6 to 1.
(8) After treatment of metal cleaning wastes, if monitoring of basin effluents as required by the permit
reveals discharges outside the limits of the permit, the permittee will re -close the basin discharge,
conduct such in -basin sampling as necessary to determine the cause of nonconformance, will take
appropriate corrective actions. and will file a report with EPA including all pertinent data.
17. FLOATING MATERIALS
The Permittee shall report all visible discharges of floating materials, such as an oil sheen, to the Director
when submitting DMRs.
18. DIKE INSPECTIONS
The permittee shall check the diked areas for leaks by a visible inspection and shall report any leakage
detected.
Page i 2 of 13

PART I
19. CHEMICAL DISCHARGES
Discharge of any product registered under the Federal Insecticide. Fungicide, and Rodenticide Act to any
waste stream which may ultimately be released to lakes, rivers, streams or other waters of the United
States is prohibited unless specifically authorized elsewhere in this permit. Discharge of chlorine from
the use of chlorine gas, sodium hypochlorite, or other similar chlorination compounds for disinfection in
plant potable and service water systems and in sewage treatment is authorized. Use of restricted use
pesticides for lake management purposes by applicators licensed by the N.C. Pesticide Board is allowed.
20. PRIORITY POLLUTANT ANALYSIS
The Permittee shall conduct a priority pollutant analysis (in accordance with 40 CFR Part 136) once per
permit cycle at outfall 002 and submit the results with the application for permit renewal.
21. WAIVERS
Nothing contained in this permit shall be construedas a waiver by permittee or any right to a hearing it
may have pursuant to State or Federal laws or regulations.
22. SECTION 316 (B) OF CWA
The permittee shall comply with the Cooling Water Intake Structure Rule per 40 CFR 125.95.
23. COMPLIANCE SCHEDULE FOR SELENIUM LIMITATION
The permittee shall have a three year schedule of compliance for the effluent limitation for total selenium.
The following are interim milestones for the installation of the proposed treatment system. The date for
compliance with the selenium limit shall be July 1, 2012
• Technology selection, treatment system design and obtaining an authorization to construct
permit for the wastewater treatment system by August 31, 2010
• Construction of wastewater treatment system and corrunissioning by June 30, 2012
o Compliance with selenium limit - July 1, 2012
Page 13 of 13

NPDES Permit Standard Conditions
Page 1 of 16
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events.
3/Week
Samples ate collected three times per week on three separate calendar days.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251, et. seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
conform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility ificluding the collection system, which
is not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 ml in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate .method (specific number and size of aliquots necessary, the time
interval between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically.
Composite samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour
period of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period
with the time intervals between samples determined by a preset number of gallons passing the sampling
point. Flow measurement .between sample intervals shall be determined by use of a flow recorder and
totalizer:, and the preset gallon interval between sample collection feted at no greater than 1/24 of the
expected total daily flow at the treatment system, or
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at
a constant time interval. Use of this method requites prior approval by the Director. This method
may only be used in situations where effluent flow rates vary less than 15 percent. The following
restrictions also apply:
> Influent and effluent grab samples shall be of equal size and of no less than 100.milliliters
Version 10/1012007

NPDES Pemlit Standard Conditions
Page 2of16
➢ Influent samples shall not be collected more than once per hour.
> Permittces with wastewater treatment systems whose detention time C 24 hours shall collect effluent
grab samples at intervals of no greater than 20 minutes apart during any 24-hour period.
• Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect
effluent grab samples at least every X hours [X = days detention time] over a 24-hour period. Effluent
samples shall be collected at least every six hours; there must be a minimum of four samples•during a 24-
hour sampling period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow ox for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as
the total mass of the pollutant discharged over the day. The "daily discharge" concentration comprises the mean
concentration for a 24-hour sampling period as either a composite sample concentration or the arithmetic mean of all
grab samples collected during that period. (40 CFR 122.2)
Daily Maximum
The highest "daily discharge" for conventional and other non -toxicant parameters. NOTE: Permittees may not
submit a "daily average" calculation [for determining compliance with permit limits] for toxicants. See the relevant
Federal effluent guideline's] for the appropriate calculation interval.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified iir the
permit. The Division expects that sampling shall be conducted on weekdays except where holidays or other
disruptions of normal operations prevent weekday sampling. If sampling is required for all seven days of the week
for any permit parameter(s), that requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWQ or "the Division"
The Division of Water Quality, Department of Environment and Natural Resources.
I ,MC
The North Carolina Environmental Management Commission.
Facility Closure
The cessation of wastewater treatment at a permitted facility, or the cessation of all activities that require coverage
under the NPDES. Completion of facility closure will allow this permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = I.
Grab Sample
Individual samples of at least 100 ml collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CIean Water Act,
Version 10/10/2007

NPDES Permit Standard Conditions
Page 3of1G
Instantaneous flow measurement
A measure of flow taken at the time of sampling, when both the sample and flow will be representative of the total
discharge.
Monthly Average (concentration limit).
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
conform, the geometric mean of such discharges.
Permit Issuingiluthority
The Director of the Division of Water Quality.
Quarterly Average (concentration limit).
The average of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property, damage to the treatment facilities which causes therm to become inoperable,
or substantial and permanent loss of natural resources which can reasonably- be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production,
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a) (1) of the Clean Water Act.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Pernnttee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation
of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance,
or modification; or denial of a permit renewal application [40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
CIean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under
section 405(d) of the Clean Water Act within the time provided in the regulations that establish these
standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been
modified to incorporate the requirement.
b. The Clean Water Act provides that any person who violates section 301, 302, 306, 307, 308, 318 or 405 of the
Act, or any pen -nit condition or limitation implementing any such sections in a permit issued under section
402, or any requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8)
of the Act, is subject to a civil penalty not to exceed $25,000 per day for each violation. [40 CFR 122.41 (a)
(2)l
c. The Clean Water Act provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or
405 of the Act, or any condition or limitation implementing any of such sections in a permit issued under
Version 10/1012007.

NPDES Permit Standard Conditions
Page 4of16
g•
section 402 of the Act, or any requirement imposed in a pretreatment program approved under section
402(a)(3) or 402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a
negligent violation, a person shall be subject to criminal pcxialties of not more than $50,000 per day of
violation, or by imprisonment of not more than 2 years, or both. [40 CFR 122.41 (a) (2)]
d. Any person who knowins# violates such sections, or.such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In
the case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[40 CFR 122.41 (a) (2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act,
and who knows at that time that he thereby places another person in imminent danger of death or serious
bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not
more than 15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment
violation, a person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than
30 years, or both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction
of violating the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined
up to $2,000,000 for second or subsequent convictions. [40 CFR 122.41 (a) (2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
Any person may be assessed an administrative penalty by the Administrator for violating section 301; 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such
sections in a permit issued under section 402 of this Act. Administrative penalties for Class I violations arc
not to exceed $10,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$25,000. Penalties for Class II violations are not to exceed $10,000 per day for each day during which tJae
violation continues, with the maximum amount of any Class II penalty not to exceed $125,000. [40 CFR
122.41 (a) (3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41 (d)].
3. Civil and Criminal Liability.
Except as provided in permit conditions on 'Bypassing" (Part II. C. 4), "Upsets" (Part ]I. C. 5) and "Power
Failures" (Part II. C. 7), nothing in this permit shall be construed to relieve the Permittee from any
responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309
of the Federal Act, 33 USC 1319. Furthermore, the Permittee is responsible for consequential damages, such as
fish kills, even though the responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to prelude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is ox may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
Version 10/10/2007

NPDES Permit Standard Conditions
Page 5of16
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any
exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor
any infringement of Federal, State or local laws or regulations [40 CFR 122.41 (g)].
6. Onshore or Offshore Construction
This permit does nor authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 150B-23].
8. Duty to Provide Information
The Pern ittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority niay request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the
Permit Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41 (h)).
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41 (b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic
authorization to discharge beyond the expiration date, the Permittee shall submit such information, forms, and
fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date.
Any Perxnittee that has not requested renewal at least 180 days prior to expiration, or any Pertnittce that does not
have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will subject
the Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified
[40 CFR 122.41 (lc)].
a. All permit applications shall be signed as follows:
(I) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in
charge of a principal business function, or any other person who performs similar policy or decision
making functions for the corporation, or (b) the manager of one or more manufacturing, production, or
operating facilities, provided, the manager is authorized to make management decisions which govern the
operation of the regulated facility including having the explicit or implicit duty of making major capital
investment recommendations, and initiating and directing other comprehensive measures to assure long
term environmental compliance with environmental laws and .regulations; the manager can ensure that
the necessary systems are established or actions taken to gather complete and accurate information for
permit application requirements; and where authority to sign documents has been assigned or delegated
to the manager in accordance with corporate procedures .
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
Version 10/10/2007

NPDES Permit Standard Conditions
Page 6of16
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if:
1. The authorization is made in writing by a person described above;
2. The authorization specified either an individual or a position having responsibility for the overall
operation of the regulated facility or activity, such as the position of plant manager, operator of a well or
well field, superintendent, a position of equivalent responsibility, or an individual or position having
overall responsibility for environmental matters for the company. (A duly authorized representative may
thus be either a named individual or any individual occupying a named position.); and
3. The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate
because a different individual or position has responsibility for the overall operation of the facility, a new
authorization satisfying the requirements of paragraph (b) of this section must be submitted to the Director
prior to or together with any reports, information, or applications to be signed by an authorized
representative [40 CFR 122.22]
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the
following certification [40 CFR 122.22];
'1 certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate
the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the Information, the information submitted Is, to the best of my knowledge and
belief, true, accurate, and complete. l am aware that there am significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations. °
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned
changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41 (f ].
13. Permit Modificadon_Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the
permit, revoking and reissuing the permit, or terminating the permit as allowed by the Lrws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. al.
14. Annual Administering and Compliance IVloniloring Fee Requirements
The Perx nittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 2H.0105 (b) (2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Upon classification of the permitted facility by the Certification Commission, the Permittee shall employ a
certified water pollution control treatment system operator in responsible charge (ORC) of the water pollution
control treatment system. Such operator must hold a certification of the grade equivalent to or greater than the
classification assigned to the water pollution control treatment system by the Certification Commission. The
Pemuttee must also employ one or more certified Back-up ORCs who possess a currently valid certificate of the
type of the system. Back-up ORCs must possess a grade equal to (or no more than one grade Iess than) the grade
of the system [15A NCAC 8G,0201].
Version 10/10/2007

NPDES Permit Standard Conditions
Page 7of16
The ORC of each Class I facility must:
Visit the facility at least weekly
Comply with all other conditions of 15A NCAC 8G.0204.
The ORC of each Class II, III and IV facility must:
➢ Visit the facility at least five days per week, excluding holidays
9 Properly manage and document daily operation and maintenance of the facility
Comply with all other conditions of I5A NCAC 8G.0204.
Once the facility is classified, the Permittee shall submit a letter to the Certification Commission designating the
operator in responsible charge:
a. Within 60 calendar days prior to wastewater being introduced into a new system
b. Within 120 calendar days of:
9 Receiving notification of a change in the classification of the system requiring the designation of a
new ORC and back-up ORC
9 A vacancy in the position of ORC or back-up ORC.
2. Proper Operation and Maintenance
The Permittee shall at all times provide the operation and maintenance resources necessary to operate the existing
facilities at optimum efficiency, The Pern tttee shall at all times properly operate and maintain all facilities and
systems of treatment and control (and related appurtenances) which are installed or used by the Pertnittee to
achieve compliance with the conditions of this permit Proper operation and maintenance also includes adequate
laboratory controls and appropriate quality assurance procedures. This provision requires the Permittee to install
and operate backup or auxiliary facilities only when necessary to achieve compliance with the conditions of the
permit [40 CFR 122.41 (e)].
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41
(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41 (m) (2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs b. and c. of this section. •
b. Notice [40 CFR 122.41 (m) (3)]
(1) Anticipated bypass_ If the Permittee
notice, if possible at least ten days
•anticipated quality and effect of the hyp
(2) Unanticipated bypass. The Pernaittce
II. E. 6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Pezm.it Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
]mows in advance of the need for a bypass, it shall submit prior
before the date of the bypass; including an evaluation of the
ass.
shall submit notice of an unanticipated bypass as required in Part
Version 10/10/2007

NPDES Permit Standard Conditions
Page 8 0116
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41 (n) (2)1: An upset constitutes an affirmative defense to an action
brought for noncompliance with such technology based permit effluent limitations if the requirements of
paragraph b. of this condition are met. No determination made during administrative review of claims that
noncompliance was caused by upset, and before an action for noncompliance, is final administrative action
subject to judicial review.
b. Conditions necessary for a demonstration of upset: A Permittee who wishes to establish the
affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or
other relevant evidence that:
(1) An upset occurred and that the Permirtee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II. E. 6. (b) of this permit.
(4) The Permittee complied with any remedial measures required under Part II. B. 2. of this permit.
c. Burden of proof [40 CFR 122,41 (n) (4)]: The Permitter: seeking to establish the occurrence of an
upset has the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States. The Permitter
shall comply with all existing Federal regulations governing the disposal of sewage sludge. Upon promulgation of
40 CFR Part 503, any permit issued by the Permit Issuing Authority for the utilization/disposal of sludge may be
reopened and modified, or revoked and reissued, to incorporate applicable requirements at 40 CFR 503. The
Permittee shall comply with applicable 40 CFR 503 Standards for the Use and Disposal of Sewage Sludge. (when
promulgated) within the time provided in the regulation, even if the permit is not modified to incorporate the
requirement. The Permittee shall notify the Persnit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 2H.0124 —
Reliability) to prevent the discharge of untreated[ or inadequately treated wastes during electrical power failures
either by means of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic of the volume and nature of
the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is
characteristic of the discharge over the entire period the sample represents. All samples shall be taken at the
monitoring points specified in this permit and, unless otherwise specified, before the effluent joins or is diluted
by any other wastestream, body of water, or substance. Monitoring points shall not be changed without
notification to and the approval of the Permit Issuing Authority [40 CFR 122.41 (j)].
Version 10/1012007

NPDES Permit Standard Conditions
Page 9ofl6
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1.1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of themonth following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new
facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of
these, and all other reports required herein, shall be submitted to the following address:
NC DENR / Division of Water Quality / Water Quality Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10%0 from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part 1
of this permit and based on the manufacturer's pump curves shall not be subject to this requirement
4. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published. pursuant to
NCGS 143-215.63 et seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to
Section 304(g), 33 USC 1314, of the Federal Water Pollution Control Act (as Amended), and 40 CFR 136; or in
the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless
other test procedures have been specified in this permit [40 CFR 122.41].
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum
detection and reporting levels that are below the permit disrharge requirements and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are
determined capable of achieving minimum detection and reporting Levels below permit discharge requirements,
then the most sensitive (method with the lowest possible detection and reporting level) approved method trust
be used.
5. Penalties for Tampering
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any
monitoring de -vice or method required to be maintained under this permit shall, upon conviction, be punished by
a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or
by both. If a conviction of a person is for a violation committed after a first conviction of such person under this
paragraph, punishment is a fine of not more than $20,000 per day of violation, or by imprisorunent of not more
than 4 years, or both [40 CFR 122.41].
6. Records Retention
Except fox records of monitoring information required by this permit related to the Pettnittee's sewage sludge
use and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40
CFR 503), the Pertnittee shall retain records of all monitoring information, including.
➢. all calibration and maintenance records.
Y all original strip chart recordings for continuous monitoring instrumentation
Version 10/10/2007

NPDES Permit Standard Conditions
Page 10 of 16
Y copies of all reports required by this permit
D copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.41].
7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record
the following information [40 CFR 122.411:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Petrnittee shall allow the Director, or an authorized representative (including an authorized contractor acting
as a representative of the Director), upon the presentation of credentials and other documents as may be required
by law, to;
a. Enter upon the Permittee`s premises where a regulated facility or activity is located or conducted, or where
records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this
pit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the Clean Water Act, any substances or parameters at any location [40 CFR 122.41 (i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge
of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall
constitute a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or
additions to the permitted facility [40 CFR 122.41 (1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29 (b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42 (a) (1).
c. The alteration or addition results in a significant change in the Permirtec's sludge use or disposal practices,
and such alteration, addition or change may justify the application of permit conditions that are different
from or absent in the existing permit, including notification of additional use or disposal sites not reported
during the permit application process ornot reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Pemuttee shall give advance notice to the Director of any planned changes to the permitted facility or'other
activities that might result in noncompliance with the permit [40 CFR 122.41 (1) (2)].
Version 10/10/2007

NPDES Permit Standard Conditions
Page llof16
4. Transfers
This permit is not transferable to any person except after notice to the Director. The Director may require
modification or revocation and reissuance of the permit to document the change of ownership. Any such action
may incorporate other requirements as may be necessary under the Clean Water Act [40 CFR 122.41 (1) (3)].
5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41 (I) (4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II. D. 2) or forms
provided by the Director for reporting results of monitoring of sludge use oz disposal practices.
b. If the Per nittee monitors any pollutant more frequently than required by this permit; the results of such
monitoring shall be included in the calculation and reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written
submission. shall contain a description of the noncompliance, and its cause; the period of noncompliance,
including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is
expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the
noncompliance [40 CFR 122.41 ® (6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part H. E. 5 and 6. of this permit at
the time monitoring reports are submitted. The reports shall contain the information listed in Part II. E. G. of
this permit [40 CFR 122.41 (I) (7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permmit application, or
submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit
such facts or information [40 CFR 122.41 (1) (8)].
9. Noncompliance Notification
The Perminee shall report by telephone to either the central office or the appropriate regional office of the
Division as soon as possible, bur in no case more than 24 hours or on the next worldng day following the
occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. .Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or. treatment facility resulting in a by-pass directly to receiving
waters without treatment of all or any portion of the influent to such station or facility. .
Version 10/10/2007

NPDES Permit Standard Conditions
Page 12 of 16
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making
any false statement on any such report may result in the imposition of r riminal penalties as provided for in
NCGS 143-215.1 (b)(2) or in Section 309 of the Federal Act.
11. Penalties for Falsification of Reports
The Clean eater Act provides that any person who knowingly makes any false statement, representation, or
certification in any record or other document submitted or required to be maintained under this permit, including
monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of
not more than 525,000 per violation, or by imprisonment for not more than two years per violation,or by both
140 CFR 122.41].
12. Annual Performance Reports
Perrnittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual
report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1C).
The report shall summarize the performance of the collection or treatment system, as well as the extent to which
the facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality.
The report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon
which annual period is used for evaluation.
PART III
OTHER REQUIREMENTS
Section A. Construction
The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless the Division has issued an
Authorization to Construct (AtC) permit. Issuance of an AtC will not occur until Final Plans and Specifications for
the proposed construction have been submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The Permitter shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent
basis, of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification Ievels";
(1) One hundred micrograms per liter (100 t.tg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitnile; five hundred micrograms
per liter (500 pg/L) for 2.4-dinitrophenol and for 2-methyl-4.6-dinitrophenol; and one milligram per liter
(l mg/L) for antimony;
(3) Five times the ma:dinutn concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non routine or
infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the
highest of the following "notification levels";
Version 10/10/2007

NPDES Permit Standard Conditions
Page 13of16
(1) Five hundred micrograms per liter (500 pg/L);
(2) One milligram per liter (I mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Evaluation of Wastewater Discharge Alternatives
The Permittee shall evaluate all wastewater disposal alternatives and pursue the most environmentally sound
alternative of the reasonably cost effective alternatives. If the facility is in substantial non-compliance with the terms
and conditions of the NPDES permit or governing rules, regulations or laws, the Pertnittee shall submit a report in
such form and detail as required by the Division evaluating these alternatives and a plan of action within 60 days of
notification by the Division.
Section E. Facility Closure Requirements
The Permittee .must notify the Division at Ieast 90 days prior to the closure of any wastewater treatment system
covered by this permit. The Division may require specific measures during deactivation of the system to prevent
adverse impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit
continue at the permitted facility.
PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Publicly Owned Treatment Works (POTWs)
All POTWs must provide adequate notice to the Director of the following:
1. Any new introduction of pollutants into the POTW from an indirect discharger which would be subject to
section 301 or 306 of CWA if it were directly discharging those pollutants; and
2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger
as influent to that POTW at the time of issuance of the permit.
3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of
effluent introduced into the POTW, and (2) any anticipated impact of the change on the quantity or quality
of effluent to be discharged from the POTW.
Section B. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations axe listed in Part I of this permit. Other pollutants attributable to inputs from
industries using the municipal system may be present in the Pennittee's discharge. At such time as
sufficient information becomes available to establish limitatons for such pollutants, this permit may be
revised to specify effluent limitations for any or all of such other pollutants in accordance with best
practicable technology or water quality standards.
2. Under no circumstances shall the Permittee allow introduction of the following wastes in the waste
treatment system:
a, Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestrcams with a closed cup flashpoint of less than 140 degrees Fahrenheit of 60 degrees
Centigrade using the test methods specified in 40 CFR 261.21;
b. Pollutants which will cause corrosive structural damage to the POTW, but in no case Discharges
with pH lower than 5.0, unless the works is specifically designed to accommodate such Discharges;
c. Solid or viscous pollutants in amounts which will cause obstruction to the "flow in the POTW
resulting in Interference;
d. Any pollutant, including oxygen demanding pollutants (BOD, etc) released in a Discharge at a flow
rate and/or pollutant concentration which will cause Interference with the POTW;
e. Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in
no case heat in such quantities that the temperature at the POTW Treatment•Plant'exceeds 40°C:
(104°F) unless the Division, upon request of the POTW, approves alternate temperature limits;
Version .10/1012007

NPDES Permit Standard Conditions
Page 14of16
f. Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will
cause interference or pass through;
g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the POT\V in a
quantity that may cause acute worker health and safety problems;
h. Any trucked or hauled pollutants, except at discharge points designated by the POTW.
3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the
Permittee to supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to
ensure compliance by the Perrtuttee with all applicable effluent limitations. Such actions by the Permittee
may be necessary regarding some or all of the industries discharging to the municipal system.
4. The Permittee shall require any industrial discharges sending influent to the permitted system to meet
Federal Pretreatment Standards promulgated in response to Section 307(b) of the Act Prior to accepting
wastewater from any significant industrial user, the Permittee shall eitherdevelop and submit to the
Division a Pretreatment Program for approval per 15A NCAC 2H .0907(a) or modify an existing
Pretreatment Program per 15A NCAC 2H .0907(b).
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved
POTW Pretreatment Program or to include a compliance schedule for the development of a POTW
Pretreatment Program as required under Section 402(b)(8) of the Clean Water Act and implementing
regulations or by the requirements of the approved State pretreatment program, as appropriate.
Section C. Pretreatment Programs
Under authority of sections 307(b) and (c) and 402(b)(8) of the Clean Water Act and implementing regulations 40
CFR Part 403, North Carolina General Statute 143-215.3 (14) and implementing regulations 15A NCAC 2H
.0900, and in accordance with the approved pretreatment program, all provisions and regulations contained and
referenced in the Pretreatment Program Submittal arc an enforceable part of this permit.
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the Clean
Water Act, the Federal Pretreatment Regulations 40 CFR Part 403, the State Pretreatment Regulations 15A
NCAC 2H .0900, and the legal authorities, policies, procedures, and financial provisions contained in its
pretreatment program submission and Division approved modifications there of. Such operation shall include
but is not limited to the implementation of the following conditions and requirements:
1. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program.
2. Industrial Waste Survey (IWS)
The Permittee shall update its Industrial Waste Survey (IWS) to include all users of the sewer collection
system at least once every five years.
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific
data to be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of
specific pretreatment local limits. Effluent data from the Plan shall be reported on the DMRs (as required
by Part II, Section D, and Section E.5).
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a Headworks Analysis (HWA) at Ieast once every five
years, and as required by the Division. Within 180 days of the effective date of this permit (or any
subsequent permit modificadon) the Permittee shall submit to the Division a written technical evaluation
of the need to revise local limits (i.e., an updated HW_A or documentation of Why one is not needed) [40
CFR 122.41]_ The Permittee shall develop, in accordance with 40 CFR 403.5(c) and 15A NCAC 2H .0909,
specific Local Limits to implement the prohibitions listed in 40 CFR 403.5(a) and'(b) and 15A NCAC 2H
.0909.
Version 10110/2007

NPDES Permit Standard Conditions
Page 15of16
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Perrnittee shall issue to all significant industrial users, permits for
operation of pretreatment equipment and discharge to the Permittee's treatment works. 'These permits
shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control
technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and
requirements. The Permitter shall maintain a current Allocation Table (AT) which summarizes the results
of the Headworks Analysis (HWA) and the limits from all Industrial User Pretreatment Permits (1UP).
Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA.
6. Authorization to Construct (AtC)
The Perrnittee shall ensure that an Authorization to Construct permit (AtC) is issued to all applicable
industrial users for the construction or modification of any pretreatment. facility. Prior to the issuance of
an AtC, the proposed pretreatment facility and treatment process must be evaluated for its capacity to
comply with all Industrial User Pretreatment Permit (IUP) limitations.
7. POTW Inspection & Monitoring of their STUB
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by industrial
users, compliance with applicable pretreatment standards. The Permittee must
a. Inspect al! Significant Industrial Users (SIUs) at least once per calendar year, and
b. Sample all Significant Industrial Users (SIUs) at least twice per calendar year for all permit -
limited pollutants, once during the period from January 1 through June 30 and once during the
period front July 1 through December 31, except for organic compounds which shall be sampled
once per calendar year,
8. SIU Self Monitoring.and Reporting
The Perrnittee shall require all industrial users to .comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit,
or in 15A NCAC 2H .0908.
9. nforcemcnt Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the Clean Water Act (40 CFR 405 et. seq.), prohibitive
discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 2H .0909, and specific local limitations.
All enforcement actions shall be consistent with the Enforcement Response Plan (ERP) approved by the
Division.
10. Pretreatment Annual Reports (PAR)
The Pen -nit -tee shall report to the Division in accordance with 15A NCAC 2H .0908. In lieu of submitting
annual reports, Modified Pretreatment Programs developed under 15A NCAC 2H .0904 (b) may be
required to meet with Division personnel periodically to discuss enforcement of pretreatment requirements
and other pretreatment implementation issues.
For all other active pretreatment programs, the Perrnittee shall submit two copies of a Pretreatmexit
Annual Report (PAR) describing its pretreatment activities over the previous twelve months to the
Division at the following address:
NC DENR / DWQ / Pretreatment Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Version 10/10/2007

NPDES Permit Standard Conditions
Page 16 of 16
These reports shall be submitted according to a schedule established by the Director and shall contain the
following:
a.) Narrative
A brief discussion of reasons for, status of, and actions taken for all Significant Industrial
Users (SIUs) in Significant Non -Compliance (SNC);
b.) Pretreatment Program Summary (PPS)
A pretreatment program summary (PPS) on specific forms approved by the Division;
c.) Significant Non -Compliance Report (SNCR),
The nature of the violations and the actions taken or proposed to correct the violations on
specific forms approved by the Division;
d.) Industrial Data Summary Forms (1DSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial
User (SIU). These analytical results must be reported on Industrial Data Summary Forms
(IDSF) or other specific format approved by the Division;
e.) Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules,
public notice of SIUs in SNC, and any other information, upon request, which in the
opinion of the Director is needed to determine compliance with the pretreatment
implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Significant Industrial Users (SIUs) that were in Significant
Non -Compliance (SNC) as defined in the Permittce's Division -approved Sewer Use Ordinance with
applicable pretreatmcxnt requirements and standards during the previous twelve month period. This list
shall be published within four months of the applicable twelve-month period.
12. Record Keeping
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along
with support information including general records, water quality records, and records of industrial impact
on the POTW.
13. Funding and Financial Report
The Permittee shall maintain adequate funding and staffing levels to accomplish the objectives of its
approved pretreatment program.
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to Iocal limits
modifications, POTW monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan
modifications, shall be considered a permit modification and shall be governed by 15 NCAC 2H .0114 and
15A NCAC 2H .0907.
Version 10/10/2007

EXHIBIT C
Duke Energy Marshall FGD Waste Water Selenium Reduction Project
Bypass Piping and Dewatering Plan
Request Authorization to Construct
TWO (2) SETS OF SIGNED, SEALED AND DATED PLANS
"FINAL DRAWING — NOT RELEASED FOR CONSTRUCTION"

4
EXHIBIT D
Duke Energy Marshall Steam Station
Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING
TECHNICAL SPECIFICATIONS
January.6, 2010
Prepared by:
Water's Edge Hydrology, Inc. & Gannett FIeming, Inc.
Clearfield, Pennsylvania & Charlotte, North Carolina
r . Professional Engineers Certification
vod' (.-0 -1 CAP °0.
+114.". °' GS B/O '°'1,ef, ",
2 0
SE�r o
2 �± �$EAL
' 17326
e •
°
u
n
° V
S'4
Ij.1 i97954 ea
Signature
Date
Jesse G. Hite, Jr., P.E
North Carolina Professional Engineer No. 017126

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERlNG TECHNICAL SPECIFICATIONS
January 6, 2010
CONTENTS
Page
1.0 GENERAL .. TS 1-1
1.1 PROJECT DESCRIPTION TS1-1
1.2 CONFIRMATION TS1-1
1.3 COMPLIANCE WITH PERMITS . TS1-2
2.0 PRODUCTS TSI-2
2.1 EROSION AND SEDIMENTATION CONTROL PRODUCTS TS1-2
2.1.1 Straw Bales TS 1-2 .
2.2 FLOW CONTROL PRODUCTS . TSI-2
2.2.1 Bypass Pipes and Fittings . TS1-2
2.2.2 Flexible Couplings TS1-2
2.2.3 Flow Control Valves ..TS1-2
3.0 EXECUTION . TS1-2
3.1 CONSTRUCTION SEQUENCE TS 1-2
3.2 EROSION AND SEDIMENTATION CONTROL TS1-4
3.2.1 Straw Bale Installation TS1-4
3.2.2 Maintenance TS1-4
3.2.3 Other Measures TS1-4
3.3 FLOW CONTROL ASSEMBLIES TS1-4
3.3.1 General TS1-4
3.3.2 Bypass Pipe Layout TS1-4
3.3.3 Pipe Support TS1-4
3.3.4 Flow Control Valves TSI-5
3.3.5 Connections to Existing Pipes TS1-5
3.3.6 Access Road Crossing TS1-5
3.4 DEWATERING PLAN TS1-5
3.4.1 Gravity Drainage TS1-5
3.4.2 Drainage Ditches and Sumps TS1-5
3.4.3 Pumping TS1-6
3.5 SURFACE MATERIAL .TS1-6
3.5.1 Surface Material Removal . TS 1-6
3.5.2 Mulching and Spreading TS 1-6
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-ii

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
1.0 GENERAL
1.1 PROJECT DESCRIPTION
The purpose of the Marshall FGD Waste Water Selenium Reduction Project is to modify the
Constructed Wetland Treatment System (CWTS) at Duke Energy's Marshall Steam Station to improve
the removal of selenium. The modification will replace the first set of three (3) surface flow wetland
(SFW) cells, identified as Wetland Cells 1A, 1B, and 1C, with six vertical flow wetland (VFW) cells to
be located between the existing pair of equalization basins and the second set of existing SFW cells
identified as Wetland Cells 2A, 2B, and 2C. The project will consist of two phases: (1) a bypass piping
and dewatering plan and (2) construction plans for the VFW Treatment System. This request is for
authorization to construct the bypass piping which will convey the FGD wastewaters around the
construction area during construction and allow dewatering of the three SFW cells to be replaced with the
VFW cells. A separate ATC request for the construction phase of the project will be submitted in
February 2010.
As shown on the attached drawings, an 18-inch HDPE bypass pipe will be installed between the
equalization basins and Wetland Cells 2A, 2B, and 2C. The bypass pipe will be connected to the inlet
pipes currently conveying wastewaters to Wetland Cells 1B and 1C. During the installation of the bypass
piping, all flow will run through Wetland Cell 1A. Once the bypass piping is constructed, flow to
Wetland 1A will be shut off. During the bypass phase, the 18-inch pipe will convey the wastewaters to
Wetland Cells 2A, 2B, and 2C by control valves and separate pipes. The bypass pipe will be laid on the
surface of the ground supported by retaining pipes driven into the ground along the downslope side of the
pipe. To allow sufficient time to install and connect the bypass system, the equalization basins will be
drawn down to provide extra storage capacity so that flows to the connecting pipes can be temporarily
closed to allow completion of the connections. After the wetland cells are bypassed, drainage trenches
and sumps will be cut into their existing substrates. The sumps will be periodically pumped with
discharge of the pumped waters alternating between Wetland Cells 2B and 2C until the substrate is
adequately dewatered for removal, stockpiling and reuse in the new VFW cells. Surface vegetation and
organic matter removed from the dewatered cells will be mulched and spread in the remaining
downstream wetland cells as an organic amendment.
1..2 CONFIRMATION
All Plan Drawing features representing existing site conditions are based on ground surveying,
and all elevations have been established relative to the elevation controls shown on the Plan Drawings and
are not tied to USGS topographic elevations. The Contractor is responsible for confirming the accuracy
of all existing site.conditions as they pertain to successful completion of this project, and for bringing to -
the attention of the Buyer's Agent any discrepancies that may hinder this completion or result in a
construction configuration significantly different from that intended by the Plan Drawings.
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-1

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
1.3 COMPLIANCE WITH PERMITS
The Contractor assumes responsibility for meeting applicable water quality discharge standards
for erosion and sediment control during construction. Under this provision, the Contractor shall be
responsible for any fines levied as a result of discharge waters not meeting these standards. The
Contractor may elect to employ erosion and sedimentation control practices in addition to those specified
as needed to meet this obligation. The Contractor shall also comply with the conditions of all other
permits applicable to the project, and shall be familiar with these permits as provided by the Buyer's
Agent.
2.0 PRODUCTS
2.1 EROSION AND SEDIMENTATION CONTROL PRODUCTS
2.1.1 Straw Bales
The Contractor shall maintain sufficient straw bales on site for placement if necessary for local
erosion or sedimentation control. Straw bales shall be fifty (50) pounds weight minimum. Hay bales are
not acceptable.
2.2 FLOW CONTROL PRODUCTS
2.2.1 Bypass Pipes and Fittings
The Bypass Pipes and Fittings shall consist of twelve (12) inch and eighteen (18) inch SDR 32.5
high density polyethylene (HDPE) pipe as indicated on the Plan Drawings. HDPE pipes and fittings shall
be heat fused according to manufacturers requirements.
2.2.2 Flexible Couplings
Flexible Couplings shall be stock twelve (12) inch and eighteen (18) inch flexible couplings, as
manufactured by Femco, Inc, suitable for coupling polyvinyl chloride (PVC) pipe to equal nominal
diameter HDPE pipe.
2.2.3 Flow Control Valves
Flow Control Valves shall be an Agri Drain Model VV 18, 18-inch in -line slide gate
manufactured by Agri Drain Corporation.
3.0 EXECUTION
3.1 CONSTRUCTION SEQUENCE
The following provides the suggested sequence of activities for implementation of this project.
Some of these activities may be conducted concurrently depending on the stage of project completion as
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-2

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
approved by the Buyer's Agent. The Buyer's Agent must approve any alternative sequencing preferred
by the Contractor.
1. Conduct a site meeting between the Contractor and the Buyer's Agent to review the project plans
and designate access routes and staging areas.
2. InstalI Bypass Pipe and valves from near the connection points to the inlet pipes to Wetland Cells
1B and 1C down through the temporary pipes to Wetland Cells 2A, 2B, and 2C.
3. Manage flows to the equalization basins to allow at least 2 days of excess storage capacity.
4. Shut off flow from the equalization basins to the existing outlet box.
5. Open the stop gate to Wetland Cell 1A.
6. Install stop gates to 'shut off flow to Wetland Cells 1B and 1C.
7. Complete connections between the inlet pipes to Wetland Cells 1B and 1C and the Bypass Pipe.
8. Open stop gates on the equalization basin outlet pipes for Wetland Cells 1B and 1C (which are
now bypassed).
9. Close the stop gate to Wetland Cell 1A.
10. Resume discharge from the equalization basins.
11. Remove all stop logs in the Wetland Cells 1A, 1B, and 1C outlets to begin dewatering of the
surface waters.
12. When surface drainage via the existing outlets is complete, excavate sumps and drainage channels
in Wetland Cells 1A, IB, and 1C to their Iiner elevations.
13. Pump collected sump waters alternately to Wetland Cells 2B and 2C until Wetland Cells 1A, 1B,
and 1C are dewatered to the liner level.
14. When the upper six (6) inches or more of substrate has been dewatered in the drained wetland
cells, remove surface material from the cells.
15. MuIch removed surface material and spread as an organic supplement to the remaining wetland
cells.
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-3

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
3.2 EROSION AND SEDIMENTATION CONTROL
3.2.1 Straw Bale Installation
The Contractor shall install local Straw Bales for temporary sediment control if necessary to
comply with Item 1.3. Straw Bales shall be staked at a minimum using two (2) wood stakes having a one
(1) foot minimum ground penetration when flush with the top of the bales.
3.2.2 Maintenance
The Contractor shall routinely inspect any erosion and sedimentation control structures to assure
their continued function, at the minimum after each precipitation event. Straw Bales shall be replaced if
clogged or damaged.
3.2.3 Other Measures
The Contractor shall implement the project plan in such a manner as to prevent the presence of
standing water in any working areas. Activities shall be suspended during periods of excessive rainfall.
3.3 FLOW CONTROL ASSEMBLIES
3.3.1 General
All pipe joints in this plan shall have water -tight seals; the Contractor is responsible for providing
appropriate fittings and methods to achieve this. The Bypass Pipe shall be constructed in its entirety prior
to connection to the existing wetland cell inlets. The Contractor shall inspect the bypass system for
approval by the Buyer's Agent before proceeding with any connection activities.
3.3.2 Bypass Pipe Layout
The Bypass Pipe shall be laid on the existing ground surface in the alignment shown on the Plan
Drawings, such that positive drainage is maintained for its entire length. The Contractor may modify this
alignment with approval from the Buyer's Agent to achieve satisfactory positive drainage. The Bypass
Pipe shall be eighteen (18) inch diameter between the junction with the existing inlet pipe to Wetland Cell
1C and the tee to Wetland Cell 2B. All other segments shall be twelve (12) inch diameter.
3.3.3 Pipe Support
The Bypass Pipe shall be supported from Iateral movement by three (3) inch diameter by five (5)
foot steel pipe posts driven to a depth of at least three (3) feet on the downhill side of the pipe. The post
spacing shall be a maximum of ten (10) feet in slope areas, and twenty five (25) feet elsewhere. Blocking
may be required to support the pipe if it is vertically unsupported for a distance of ten (10) feet or more.
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-4

MarshallFGD Wastewater Selenium Reduction System '
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
3.3.4 Flow Control Valves
Flow Control Valves shall be installed: (I) on the inlet to Wetland Ce11 2C, (2) on the inlet to
Wetland Cell 2B, and (3) on the pipe to Wetland CeI1 2A inunediately after the tee junction to Wetland
Ce11 2B. Following initiation of bypass flows, the Flow Control Valves shall be adjusted to balance the
flows between the three cells to the extent practicable.
3.3.5 Connections to Existing Pipes
The Bypass Pipe shall be connected to the existing wetland cell inlet pipes using the specified
flexible couplings. The existing inlet pipes shall be exposed sufficiently prior to connection that the
connection can be accomplished immediately after cessation of flow from the equalization basins. The
Contractor is responsible for providing pipe fittings to create a functional joint between the Bypass Pipe
and the existing inlet pipes at the angles achievable by the design Iayout.
3.3.6 Access Road Crossing
The Bypass Pipe shall be protected by a twenty-four (24) inch steel casing pipe where it crosses
the existing access road. The Contractor shall provide cover fill at the direction of the Buyer's Agent to
construct pipe cover and approach grades appropriate for site access by standard two -wheel -drive
automobiles.
3.4 DEWATERING PLAN
3.4.1 Gravity Drainage
After cessation of flow from the equalization basins, the stop logs in the existing wetland cell
outlet controls shall be removed, and the cells will be allowed to drain by gravity for a period of at least
twenty-four (24) hours before the excavation of drainage ditches begins.
3.4.2 Drainage Ditches and Sumps
A system of Drainage Ditches shall be excavated into the existing wetland cell substrate in the
general configuration indicated on the Plan Drawings. The Drainage Ditches shall terminate in
Dewatering Sumps to be used for pumping. Ditches and Sumps shall be excavated to the top of the
existing GCL Iiners. It is acceptable to remove the upper eighteen (18) inches of substrate using standard
bucket equipment, provided that this depth will not intercept the existing liners. The remaining material
shall be removed to the liner surface using a smooth -rim, rubber -sheathed bucket excavator or backhoe.
Excavated substrate shall be cast into the cell onto surrounding substrate; no material may be placed
outside of the cell.
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TSI-5

Marshall FGD Wastewater Selenium Reduction System
BYPASS PIPING AND DEWATERING TECHNICAL SPECIFICATIONS
January 6, 2010
3.4.3 Pumping
The Dewatering Sumps shall be pumped down to the extent practicable on a regular basis starting
immediately after gravity drainage is completed and continuing until no extractable drainage has occurred
for three (3) consecutive weeks. A trash. pump or similar pump device shall be used capable of extracting
less than two (2) inches of standing water. Pumped waters shall be discharged to the inlets of Wetland
Cells 2B and 2C, alternating between the two cells every other week. All pumped waters shall be
discharged through a filter sock appropriate for the pump apparatus employed.
3.5 SURFACE MATERIAL
3.5.1 Surface Material Removal
The existing surface material within the wetland cells shall be removed to expose the inorganic
subsurface substrate materials, such that these materials can be used for liner cover in later VFW system
construction. Surface materials shall include all standing plants, plant roots, and organic sediment
accumulations. Surface materials shall be removed and temporarily stockpiled in the area indicated on
the Plan Drawings for later redistribution. Removal of surface materials shall not proceed until the upper
six (6) inches of substrate have been dewatered to the satisfaction of the Buyer's Agent.
3.5.2 Mulching and Spreading
The surface materials removed from the existing wetland cells shall be mulched (mechanically
ground) in a process that either spreads or allows them to be broadcast spread for a linear distance of at
least thirty (30) feet. An aerial spreading method such as a mulcher or spreader is appropriate. The
recovered surface materials from Wetland Cells 1A, 1B, and 1C shaIl be uniformly mulched and spread in
this manner along the perimeters of downstream Wetland Cells 2A, 2B, 2C, 4A, 4B, and 4C as a
beneficial organic amendment. The Contractor shall determine from the volume of recovered surface
material an appropriate spreading rate between these cells, for approval by the Buyer's Agent.
Water's Edge Hydrology, Inc. / Gannett Fleming, Inc. TS1-6

EXHIBIT E
Duke Energy Marshall FGD Waste Water Selenium Reduction Project
Bypass Piping and Dewatering Plan
Request Authorization to Construct
BYPASS PIPE HYDRAULIC CALCULATIONS
The following section illustrates the hydraulic calculations associated with the Bypass Piping System
which will be used during construction of the Vertical Flow Wetland cells that will replace Surface Flow
Wetlands 1A, 1B, and 1C. Hydraulic calculations were performed using the computer program Bentley
Flowmaster, service pak 3, and program output is included in the appendix.
The maximum total design flow rate through the system is 1580 gallons per minute (GPM). The pipe is
18-inch diameter HDPE, SDR 32.5 with an inside diameter of 16.89 inches. Pipe slope varies, but is
generally not less than .5%. At the design flow, the depth of water in the pipe is 7.76 inches, or
approximately 46% full
Professional Engineers Certification
.��;lasiii6i8a,
te�a°°�-(�1 C/�I�Q�''is
4.4v....Ce+.eeee
sio
``l� ° p SEAL
e SEAL° m
17126
b
e
e
aN��•. ,1G/NS �°
G. Hi"��&o+°�
Signature Date
Jesse G. Hite, Jr., P.E
North Carolina Professional Engineer No. 017126

Worksheet for Bypass Piping - Gravity Section
Project Description
Friction Method
Solve For
Input Data
Manning Formula
Normal Depth
Roughness Coefficient 0.010
Channel Slope 0.00500 ft/ft
Diameter 16,89 in
Discharge 1580.00 gal/min
Results
Normal Depth 7.76 in
Flow Area 0.70 ft2
Wetted Perimeter 2.10 ft
Top Width 1.40 ft
Critical Depth 0,73 ft
Percent Full 45.9
Critical Slope 0.00329 ft/ft
Velocity
5.05 ft/s
Velocity Head
0.40 ft
Specific Energy 1.04 ft
Fronde Number 1.26
Maximum Discharge 8.77 ft'/s
Discharge Fuji 3657.14 gal/min
Slope Full 0.00093 ftlft
Flow Type SuperCritical
GVF Input Data
Downstream Depth 0.00 in
Length 0.00 ft
Number Of Steps 0
GVF Output Data
Upstream Depth
0.00 in
Profile Description
Profile Headioss 0.00 ft
Average End Depth Over Rise 0.00
Normal Depth Over Rise 45.93
Downstream Velocity Infinity ft/s
Upstream Velocity infinity ft/s
11812010 10:02:06 AM
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FtowMaster [08.01.071.00]
27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203-755.1665
Page 1 of 2

Worksheet for Bypass Piping - Gravity Section
GVF Output Data
Normal Depth 7,76 in
Critical Depth 0.73 ft
Channel Slope 0,00500 ft/ft
Critical Slope 0.00329 ftfft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.071.00]
1/8/2010 10:02:06 AM 27 Slemons Company Drive Suite 200 W Watertown, CT 06795 USA +1.203.755-1666
Page 2 of 2

EXHIBIT F
Duke Energy Marshall FGD Waste Water Selenium Reduction Project
Bypass Piping and Dewatering Plan
Request Authorization to Construct
8% x 11 FLOW SCHEMATIC DIAGRAM

/
HDPE `\X,12° RE UC
HOPE 18'90° ELBOW
\\
%HDPE 18' TEE
HDPE 18'X12' REDUCER /
\ /
\ /
,HDP 12' 9D\BOW7---.
\ 12' HDPE TEMPORARY
\\ BYPASS PIPE
\ \
SCALE: NONE
DATE: 1/08/10
OF PROJECT NO.:
DRAWING: DEWATERING_8X11
PLOT FILE: DEWATERING_BX11
CTB FILE: MARSHALL.CTB
HDPE 18'X12' REDUCER
HDPE 18' 45° WYE
18' HDPE TEMPORARY
BYPASS PIPE
HDPE 18'
18' HDPE TEMPORARY
BYPASS PIPE
AGRIDRAIN
18° SLIDE GATE VALVE
WETLAND
CELL 2C
fiannettFlening
800 Leonard Street
Clearfield, PA 16830
[phone]
90° ELBOW
WETLAND
CELL 4C
WETLAND
CELL24
w N
W E
S
EXHIBIT F
Duke Energy
Marshall FGD Waste Water
Selenium Reduction Project
Bypass Piping and Dewatering Plan
Request Authorization to Construct

Beverly Eaves Perdue
Governor
Mr. Ron Lewis
Duke Energy
Mail Code EC13K
526 S. Church Street
Charlotte, North Carolina 28202
Dear Mr. Lewis:
Al#
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins Dee Freeman
Director Secretary
February 18, 2010
SUBJECT: Authorization to Construct
A to C No. 004987A03
Duke Energy.
Marshall Steam Station
Flue Gas Desulfurization WWTP Improvements
Phase 1: Bypass Piping and Dewateri„ng Plan
Catawba County
A letter of request for an Authorization to Construct was received January IA, 2010, by
the Division of Water Quality (Division), and final plans and specifications for the subject
project have been reviewed and found to he satisfactory. Authorization is hereby granted for the
construction of modifications to the existing Flue Gas Desulfurization (FGD) Wastewater
Treatment Plant, with discharge of treated wastewater into the Ash Settling Basin (via Internal
Outfall 004), which discharges into the Catawba River (Lake Norman, Outfall 002) in the
Catawba 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 an 18-inch HDPE gravity bypass pipe between the equalization basins and
wetland cells 2A, 2B, and 2C, to allow removal of material in wetland cells 1 A, 1B and
1C for wetland conversion in a future authorization to construct, in conformity with the
project plans, specifications, and other supporting data subsequently filed and approved
by the Departrnent of Environment and Natural Resources..
This Authorization to Construct is issued in accordance with Part 111, Paragraph A of
NPDES Permit No. NC0004987 issued June 15, 2009, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0004987.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Locatron: 512 N Salisbury St Raleigh, North Carolina 27604
Phone: [phone] `i FAX: 919-'807-6492 'r Customer Service: 1-677-623-6748
Internet: wymtncvaterguality:org
An Equal Opparlunily Atturiattve Actmn Employer
One
North Car
atura

Mr. Ron Lewis
February 18, 2010
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 Division.
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 the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Mooresville 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,
DWQIDENR, 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 perrnittee 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.

Mr. Ron Lewis
February 18, 2010
Page 3
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.
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 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,
Coleen H. Sullins
kp:sr
Avf
cc: Jesse G. Hite, Jr., P.E. — Gannet Fleming, Inc., Suite 1008, 301 S. McDowell St.,
Charlotte, NC 28204-2622
Catawba County Health Department
DWQ Mooresville Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File No. 004987A03

Duke Power
Marshall Steam Station
Flue Gas Desulfurization WWTP Improvements
Phase 1: Bypass Piping and Dewatering Plan
A To C No. 004987A03
Issued February 18, 2010
Engineer's Certification
, 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 Marshall. Steam Station Flue Gas
Desulfurization WWTP, located at the intersection of NC Highway 150 and NCSR 1.841 in
Catawba 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 an 18-inch HDPE gravity bypass pipe between the equalization basins and
wetland cells 2A, 2B, and 2C, to allow removal of material. in wetland. cells IA, IB and
IC for wetland conversion in a future authorization to construct, 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.
Date
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

Laborat r Ce
Laboratory Name:
Inspection Type:
Inspector Name's):
Inspection Date:
INSPECTION REPORT ROUTING SHEET
To be attached to all inspection reports in-house only,
5155
Duke Power Co, Marshall Stea
Held Maintenance
Chet Whtn
November 30, 2009
Station
Date Report Completed: January 13, 2010
Date Forwarded to Reviewer: January 22, 2010
Reviewed by: Jason Smith.
Date Review Completed: January 25, 2010
Cover Letter to use: Insp. Initial Insp. Reg. X lnsp, No Finding Insp, CP
Unit Supervisor: Gary Francies
Date Re c ived 1/25/2009
Date Forwarded to Alberta: 1/25/2010
Date Mailed:

y.
•
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen Ft Sullins
Governor Director Dee Freeman
Secretary
January 26, 2010
5155
Mr. Rodney Wike
Duke Power Co. Marshall Steam Station
13339 Hager's Ferry Road
Huntersville, NC 28078-7929
SUBJECT: North Carolina Wastewater/Groundwater Laboratory Certification (NC WW/GW LC)
Maintenance Inspection
Dear Mr. Wike:
Enclosed is a report for the inspection performed on November 30, 2009 by Mr. Chet Whiting* No findings are
cited in this report, a response is not required. We appreciate the fine job you and your staff are doing. As a
certification requirement, your laboratory must continue to carry out the requirements set forth in 15A NCAC
2H 0800.
Copies of the checklists completed during the inspection may be requested from this office. Thank you for your
cooperation during the inspection. If you wish to obtain an electronic copy of this report by email, or if you have
questions or need additional information please contact me at 828-296-4677.
Sincerely,
Gary Francies
Unit Supervisor
Laboratory Section
cc: Moofesville Regional Office
Chet Whiting
DENR DWO Laboratory Section NC Wastewater/Groundwater Laboratory Certification Branch
1623 Mail Service Center, Rateigh, North Carolina 27699-1623
Location; 4405 Reedy Creek Road. Rafekih, North CaroItna 27'6.0?-6445
Phone: [phone] FAX: [phone]
Internet: www.dwgiatlorg
An Fp up1Opportunity AffirmaPve Action. F.rnp yer Customer Service: 1-877-034570 ywiw,pcw-awrqualdy,org
One
NorthCarolina
Naturally

LABORATORY NAME:
NPDES PERMIT #:
ADDRESS:
CERTIFICATE #:
DATE OF INSPECTION:
TYPE OF INSPECTION:
AUDITOR(S):
LOCAL PERSON(S) CONTACTED:
I. INTRODUCTION:
On -Site Inspection Report
Duke Power Co. Marshall Steam Station
NC0004987
Duke Power Company LLC
13339 Hager's Ferry Road
Huntersville, NC 28078-7929
5155
November 30, 2009
Field Maintenance
Chet Whiting
Rodney Wike
This laboratory was inspected to verify its compliance with the requirements of 15A NCAC 2H .0800 for
the analysis of environmental samples.
!!. GENERAL COMMENTS:
The laboratory has been proactive in its approach to certification; the analysis of recommended post
calibration pH checks is one example. The laboratory has also implemented a system for consumable
traceability well before it was required by North Carolina Wastewater/Groundwater Laboratory
Certification policy.
III. FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS:
General Laboratory
Comment: The name of the .vendor/manufacturer was not included as part of consumable tracking.
North Carolina Wastewater/Groundwater Laboratory Certification document, Quality Assurance
Policies for Field Laboratories states: "All chemicals, reagents, standards and consumables used by
the laboratory must have the following information documented: Date received, Date Opened (in use),
Vendor, Lot Number, and Expiration Date. A system (e.g., traceable identifiers) must be in place that
links standard/reagent preparation information to analytical batches in which the solutions are used.
Documentation of solution preparation must include the analyst's initials, date of preparation, the
volume or weight of standard(s) used, the solvent and final volume of the solution. This information as
well as the vendor and/or manufacturer, lot number, and expiration date must be retained for primary
standards, chemicals, reagents, and materials used for a period of five years. Consumable materials
such as pH buffers and lots of pre -made standards are included in this requirement". This item was
corrected on -site during the inspection. No further response is necessary for thisfinding.

lir-
Page 2
Lab #5155 Duke Power Co. Marshall Steam Station
!V. PAPER TRAIL INVESTIGATION:
The paper trail consisted of comparing field testing records and contract lab reports to Discharge
Monitoring Reports (DMRs) submitted to the North Carolina Division of Water Quality. Data were
reviewed for Marshall Steam Station (NPDES permit # NC0004987) for August and September, 2009.
No transcription errors were detected. The facility appears to be doing a good job of accurately
transcribing data.
V. CONCLUSIONS:
All findings noted during the inspection were adequately addressed prior to the completion of this
report. The inspector would like to thank the staff for its assistance during the inspection and data review
process. No response is required.
Report prepared by: Chet Whiting Date: January 13, 2010
Report reviewed by: Jason Smith Date: January 25, 2010

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
January 25, 2010
Mr. Ron Lewis
Duke Energy
Mail Code EC 13K
526 S. Church Street
Charlotte, North Carolina
SUBJECT: Acknowledgement of Request for an
Authorization to Construct
Duke Energy
Marshall Flue Gas Desulfurization WWTP
WWTP Improvements
NPL)ES Permit No. NC0004987
Dear Mr. Ron Lewis:
The Construction Grants and Loans Section received your request for an Authorization to
Construct and the supporting documentation on January 14, 2010. We will notify you and your
engineer upon completion of our review. Your project has been assigned to Ken Pohlig, P.E.
He can be reached at (919') 715-6221.
If you have any questions concerning this matter, please contact me at (919) 71S-6.206.
Sincerely,
n/
eth Robertson, P.E., Srvitor
Construction Grants and Loans Section
Design Management Unit
swc/dr
cc: Jesse G. Hite, Jr., P.E. — Gannet Flea ring, Inc., Suite 1008, 301 S. McDowell St.,
Charlotte, NC 28204-2622
Mooresville Regional Office
WQ Central. Files
Ken Pohlig, P.E.
Steve Coffey, P.E.
ATC File 004987A03
1633 Mail Service Center, Raleigh, North Carolina 27699-163t3
Location: 2728 Capital Blvd. Raleigh, North Carolina 27604
Phone; 919-733-69001 FAX: [phone] Customer Service. 1-877-623.6748
Internet: www.rtncwaterqualitp.©rg
An Equa Opportunity t Athrmarive Action. Lmpuyer
One
NarthCaro1 a
attire!!