NCS000549_MONITORING INFO_20190123

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
DOC TYPE
❑FINAL PERMIT
❑KMONITORIN6 REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ )u/ 7 1)O3
YYYYMMDD

(� DUKE
ENERGY,
January 18, 2019
Division of Water Resources
Attention: Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Stormwater Discharge Monitoring Report for:
Riverbend Steam Station — NCS000549 — Gaston County
Environmental Services
Duke Energy
Riverbend Steam Station
175 Steam Plant Rd,
Charlotte, NC 28120
RECEn/ED
JAN 2 3 2019
CEN-NAL FILES
DWR SECTION
In accordance with Part III, E(2) of the above referenced NPDES Stormwater permit, the original
and one copy of the monitoring report for December, 2018 is attached.
Sample results above the benchmark values for analytical monitoring are listed below. Duke
Energy continues to implement corrective actions as required by the Tier status at these
outfalls.
Parameter -
Benchmark
SW010
SW011
Zinc '''
`0.126 mg/L
0.216 mg/L
Copper %
O.Q10:mg/L
0.020 mg/L
0.014 mg/L
Please direct any correspondence or questions concerning the Riverbend Steam Station
NPDES Stormwater Program to Brad Loveland at [phone].
Sincerely,
J
Tim S. Hi
General Manager
CCP Regional Operations & Maintenance
Attachment

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000549
FACILITY NAME Riverbend Steam Station
PERSON COLLECTING SAMPLE(S) Chris Atwell/Scott Finn
CERTIFIED LABORATORY(S) Duke Energy Carolinas, LLC NC Lab #248
Shealv Environmental Services, Inc. NC Lab #329
rart A: Jpecinc MonitormQ Keuulrements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2018
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
COUNTY Gaston
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
OutfalT
No Y
-.
Date
`Sample `
Collected
500501.
00400
01077
01002 :.
01022
01012_ :.
01027,•_
Total'
FlowK(t1 appi)
Total .:
Rainfall
pH
��
Silver, Total (as!
,Ag) ; ;
::Arsenic;.
Total (asrAs)-`
Boron, Total',:`
(as.B)' :
Beryllium,
To'tal`(as Be)
Cadmium;
Total'(as Ctl)::'
6,
:trio/cid/ r *
MG 1: x; x .
inches'
r,
m IL
m ILY"
m 7L
m /L ..
m /L.:..: .
SWO02
12/20/18
N/A
1.71
6.9
<0.0002
0.00143
<0.05
<0.001
<0.001
SWO03
12/20/18
N/A .
1.71
6.0
<0.0002
<0.001
<0.05
<0.001
<0.001
SWO04
12/20/18
NIA
1.71
6.3
<0.0002
0.00265
<0.05
<0.001
<0.001
SWO06
12/20/18
NIA
1.71
6.4
SWO10.
12/20/18
NIA
1.71
16.1
SWoll
12/20/18
NIA
1.71
16.3
SWO18
12/20/18
1 NIA
1.71
6.9
Outfall
No", (Sample
G..-.
.�
Date s „
[�
�5.�;3`�
;.Collected,
<01034 , * ;
01042. . sa;
.01067=.: •
=01051' `.:
01097
01147
OlOS9:k'
Q1092 ., <.
ChiomiumyT�p;,Copper,Total
!'Y�.A'.. 'i ..vs' ::'i�
Total:{as Cr
va::-- '� ...
as Cu = F
NickelTotaly$
:17::.a. �w7�, -, :�
`(aslN�
LeadTotal
k 2<.i..
"(as`Pb
'A'ntimonyK
:,..,
,Total as Sb
Selenium,
`T©tal.Wse u
Thallium, _
Total. As Tl
Zincj7Total;(as-
Zn s<�
t•... : ,� ..
moldd/ r ,
tri /L.. .'.:.
=m` /L' ....;;
<<n /L k ;
m /L . ,,,
m .IL
rr� IL ::'
m IL' ...
m IL..„ ..:.
SWO02
12/20/18
0.00573
0.00732
0.00246
0.00618
<0.001
<0.001
<0.0002
0.058
SWO03
12/20/18
0.00104
0.00364
<0.001
0.00124
<0.001
<0.001
<0.0002
0.045
SWO04
12/20/18
0.00243
0.00644
<0.001
0.00245
<0.001
<0.001
<0.0002
0.043
SWO06
12/20/18
SWO10
12/20/18
0.020
0.124
Swo 11
12/20/18
0.014
0.216
SWO18
12nQ11s
Permit Number NCS000549 Form S WU-247, last revised 21212012
Page 1 of')

Outfall
No.
Date
Sample
Collected
71900
C0530
00556
Mercury,
Total, Method
"1631 E
Solids, Total
Suspended-`
Concentration
Oil& Grease
mo/dd/ r
ng/L
m /L
m IL
SWO02
12/20/18
11 Avg
82
<4.3
SWO03
12/20/18
5.01
24
<4.3
SWO04
12/20/18
10.6
56
SWO06
12/20/18
9.6
<4.3
SWO10
12/20/18
21
<4.3
SW011
12/20/18
22
<4.3
SWO18
12/20/18
56
<4.2
Outfall
Date
Aroclor
Aroclor
Aroclor
Aroclor
Aroclor
Aroclor
Aroclor
No.
Sample
1016
1221
1232
1242
1248
1254
1260
3 Collected ,.
a
;
' mo/dd/ r "
'ng/L "
u /L '
u IL " '
u L
u /L
u /L.
u /L`
SWO06
12/20/18
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Benchmark exceedances include Copper at SWO10 and SWOT l; Zinc at SWOT 1.
Avg — Average of primary and duplicate mercury samples (10.3 ng/L and 11.7 ng/L = i i ng/L).
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes X no
(if yes, complete Part B) "
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall -: "
Date ''
50050 -
00556
00530
00400 -
TotafElow
Total
Oil & Grease
Non -polar
Total"
pH
New Motor
No..
Sample
Collected
(if applicable)
"Rainfall
(if appl.)
O&GITPH
Suspended
Oil Usage
(Method,1664
Solids
SGT-HEM), if
appl.
mo/ddl -r
MG
lifiches
m 11
m I
unit
al/mo
Permit Number NCS000549 Form S WU-247, last revised 21212012
Page 2 of 3

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 12/20/18 Attn: Central Files
Total Event Precipitation (inches): 1.71 1617 Mail Service Center
Event Duration (hours): (only if applicable — see permit.) Raleigh, North Carolina 27699-1617
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
"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.' 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of Perm
i--/� 1 `7
(Date)
Permit Number NCS000549
Form SWU-247, last revised 21212012
Page 3 of 3

P.
r� DUKE
ENERGY.
December 1.9, 2018
Division of Water Resources
Attention: Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Drake Energy, Carolinas, LLC
Environmentat Services
ouke'Energy
Riverbend Stearn Station
175 Steam Plant Rd.
charlotte, NC 28120
���1 VFrD
.BAN
CENTRAL FILES
DWR SECTION
NPDES Stormwater Discharge Monitoring Report for:
Riverbend Steam Station — NCS000549 — Gaston County
In accordance with Part III, E(2) of the above referenced NPDES Stormwater permit, the original
and one copy of the monitoring report for November, 2018 is attached.
No samples were collected during this monitoring period due to the storm events occurring
during adverse weather conditions (severe lightning storms) and. during night time hours.
Please direct any correspondence or questions concerning the Riverbend-Steam Station
NPDES Stormwater Program to Brad Loveland at [phone].
Sincerely,
Tim. Hill
General Manager
CCP Regional Operations S Maintenance
Attachment

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000549
FACILITY NAME Riverbend Steam Station
PERSON COLLECTING SAMPLE(S) NA
CERTIFIED LABORATORY(S) Duke Enerj!y Carolinas, LLC NC Lab #248
Shealv Environmental Services, Inc. NC Lab #329
Part A: Specific Monitoring Re quirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2018
(This monitoring report shall be received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
COUNTY Gaston
PHONE NO. (70 ) 263-3217
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2. 1
No samples were collected for these
outfalls during November 2018
:Da'te`'---,---;Wr-.4..
,filt'154
"Collected
;50050.tikltl�V,4�- 1%117A*.-
jotAl
Tlow-
Jif apV-1
AN
47AW004001.4
i
fi H
t 0107.M k.,V
S'l T'
i verj Total
�01002�,%
A�
!��Snic*�
K
,,Tot
r-,
I I i tine , -z �41,11
% Total`Total?
010271-'-..".
iCadm
m
em za
'ffi6/dd/y1r&
. W
I I q Q q
inches
ft/ "WWW44;
W W L
taik1u;r" ��T*
tmg/EW
SW002
N/A
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER
2018
SWO04
N/A
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
SWO10
N/A
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
SW01 1
N/A
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
ONutfall•ate7.01034
P
ANW9
10 10 4 2 0.1, ~ .
0 10 6 7AMOKS, M-,,,
Ol 0 5 1 Y
Tdfl�,&
0109,7...
t i hO
t'04 1'4 7-
:Selenium,
I i
Thallium;
Zi tj�Total '-
'(aS
a
Cnrdhidffij,c60&
N—I
V,6d
u
'
F
Collected
Total, r),
as
Yas
Totals
n
�F,%W
'hiWdd/yr�ft,,m
VR;'ftftl
nfig/Vft NAM 6V
.
, in./M~ 4
'r
m g/11,;�,",
SW002
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER
2018
SW004
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
SWO10
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
SWOT I
N/A
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
Permit Number NCS000549 Form SWU-247, last revised 21212012
Page I of 2
V

Oitt6ils. - 1
F
�No, )Samples
—�Ifi3IE
'Date, `
�Callecteds
E7UNI.-
'C0530i i
100556L- � _� _
IMercury-
TntaMetliod,
_
'S611dsTota1
Sum p rued -,
rCon tncetio`nt.
'0i1;&�Grense' "
t
3
fmolddl•'ri.:3
]n ;_
(m ti
Im -.
SWO02
NIA
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 20I8
SW004
NIA
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2019
SWOlo
NIA
NO FLOW FOR THIS OUTFALUFOR THE MONTH OF NOVEMBER 2018
SW011
NIA.
NO FLOW FOR THIS OUTFALL FOR THE MONTH OF NOVEMBER 2018
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _yes X no
(if yes, complete Part B)
Part B: Vehicle
Maintenance Activi Monitoring
Re uirements
OutfalIF - ...
IDatet
150050 ;, ..
C
�00556 _�_
i -' .� ^ ` 7
f00530L�--J
'Total` -
100400E
'Navy
"`
T
Sample!
,CoElectedj _
Total}Fliiw,
(if.applicable)
Totalp
Rainfalls(Ifiappl:)&GrI'P.H
Qii'& Gr_erisc`
INnn lam
Su9 n�ied,
f-1V
k 10it
Motoii
Usa e
i.. _ .l '
=4(M
thud 16b4)-
SGT.H M)),11M
Solid ,
;
j
Mn
NOTE: November 2018 samnles not collected due to unqualified rain events or adverse weather conditions.
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date NA Attn: Central Files
Total Event Precipitation (inches): NA 1617 Mail Service Center
Event Duration (hours): (only if applicable - see permit.) Raleigh, North Carolina 27699-€617
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable -- see permit.)
"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 possibni of Ines and imprisonment for knowing violations."
D 12-20-18
(Signature of Fermfttee) _ _ ... - - -_- _ - . -(Dote) _
Permit Number NCS000549 Form SWU-247, last revised 21212012
Page 2 of 2