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STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
NLS
DOC TYPE
❑FINAL PERMIT
�I MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ � � 1 v � �
YYYYMMDD
r� DUKE
• � ENERGY
June 12, 2019
Division of Water Resources
Attention: Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
R ��
ECT7
JUN 17 29,9
cF-N-i Iw1'.I. FILES
OWR SECTION
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
In accordance with Part III, E(2) of the above referenced NPDES Stormwater permit, the original
and one copy of the monitoring report for May 2019 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
Cu
0.010 m&L
0.012 mg/L
0.014 mg/L
Ira
.:,
(2fi tea IL
0',SS mg/I
n g/i_
OIL
Please direct any correspondence or questions concerning the Riverbend Steam Station
NPDES Stormwater Program to Brad Loveland at (980) 373-2820.
Sincerely,
Tim S. Hi I
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) Trent Williams/Steve Hamilton
CERTIFIED LABORATORY(S) Duke Energy Carolinas, LLC NC Lab #248
Shealy Environmental Services, Inc. NC Lab #329
tart A: Nnee111c MOnitorm2 Reaulrements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2019
(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. (980) 373-2820
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Outfall
Date"
50050
00400
01077 _
01002
01022
01012
01027
No..
.:.
Sample
Collected;. -
Total-,
Flow (if apt) .,
;Total
Rainfall
pH
Silver:Total (as
Ag):
:Arsenic,
Total.(as As)
Boron, Total
(as B)_
%fteryllium,
Total (as Be)
Cadmium,
Total (as Cd)
mo/ddl r:.-
1MG
inches
m IL
m /L
m /L
m /L
mg/L.
SW002
5/11/19
N/A
1.03
7.5
<0.0002
<0.001
<0.05
<0,001
<0.00I
SW003
N/A
N/A
SEMI-ANNUAL
OUTFALL SAMPLED IN APRIL
2019
SW004
N/A
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW006
N/A
N/A
SEMI-ANNUAL OUTFALL SAMPLED IN APRIL 2019
SWO10
5/11/19
N/A
1.03
16.7
SWOII
5/11/19
1 N/A
1.03
17.4
SW018
N/A
I N/A
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
O.utfall_
No... ' .
:.DaWl
Sample
Collected`.:
01034,
01042..::.
01067•
;01051 ", :;
01097 _ :;
01147 `
0.1059
01092
Chromium,
YTotal as`Ci
Copper, Total
as`Cu =.
;Nickel, Total;,
as NI );..
Lead Tdfal
,
astl'b
( )
Antimony,
:Total as.Sb '
Selenium,
:Total as.Se :.
)
Thallium; ,
Total As TI
Zinc, Total as
Zn
tno/diilvr_ :.
n"7L s,
m _ L
>m /L =
m" `IL
m 7L
m /L
m /L .
m /L
SW002
5/11/19
<0.001
0.00178
<0.001
<0.001
<0.001
<0.001
<0.0002
0.025
SW003
N/A
SEMI-ANNUAL OUTFALL SAMPLED IN APRIL
2019
SW004
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW006
NIA
SEMI-ANNUAL OUTFALL SAMPLED IN APRIL 2019
SWO10
5/11/19
0.012
0.18.5
SWOT 1
5/11/19
10.014
10.834
SW018
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
Permit Number NCS000549 Form SWU-247, last revised 21212012
paaP I of 2
Outfall
No.
Date
Sample
Collected
71900
CO530
00556
Mercury, Total, Method
1631 E
Solids, Total
Suspended -
Concentration
Oil & Grease
mo/dd/ r
n IL
rn /L
m /L
SW002
5/11/19
6.39 Avg.
6.6
<5.0
SW003
NIA
SEMI-ANNUAL OUTFALL
SAMPLED IN APRIL
2019
SW004
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW006
NIA
SEMI-ANNUAL OUTFALL SAMPLED IN APRIL 2019
SWO10
5/11/19
17.2
<5.0
SWOl l
5/11/19
17.4
<5.0
SWO18
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/ r
u L
u /L
u /L
u /L
u /L
u /L
u /L
SWO06
NIA
SEMI-ANNUAL OUTFALL SAMPLED INAPRIL
2019
Benchmark exceedances include Zinc at SWO10 and SWO1 1; Copper at SWO10 and SW01 I.
Avg — Average of primary and duplicate mercury samples (6.30 ng/L and 6.47 ng/L = 6.39 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 13)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
Date
50050
00556
00530
00400
No.
Sample
Total Flow
Total
Oil & Grease
Non -polar
Total
pH
New Motor
Collected
.(if applicable)
Rainfall
(if appl.)
O&G/TPH
Suspended
Oil Usage
(Method 1664
Solids
SGT-HEM), if
a 1_
mo/dd/ r
MG
inches
m /1
-
m /I
unit
al/mo
Permit Number NCS000549 Form SWU-247, last revised 21212012
pnoe 7 of
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 5/1 1/19 Attn: Central Files
Total Event Precipitation (inches): 10 1617 Mail Service Center
Event Duration (hours): (only if applicable —see permit.) Raleigh, North Carolina27699-1617
(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, rue, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibililyfond imprisonment for knowing violations."
(Signature of Permittee)
G 12 �9
(Date)
Permit Number NCS000549
Form S W U-247, last revised 21212012
P5UP ; of ;
/�DUKE
. ENERGY,
May 15, 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
MAY 202019
CEN7-RAL FILES
D41`/R SE�7l01•!
Environmental Services
Duke Energy
Riverbend Steam Station
175 Steam Plant Rd.
Charlotte, NC. 28120
In accordance with Part III, E(2) of the above referenced NPDES Stormwater permit, the original
and one copy of the monitoring report for April 2019 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
SW01 i
Zn
0.126 mg/t,
0.161 mg/L
0.260 mg/L
Cu
0.010 mg/L
0.017 mg/L
0.012 mg/L
Please direct any correspondence or questions concerning the Riverbend Steam Station
NPDES Stormwater Program to Brad Loveland at (980) 373-2820.
Si:;
Tim S. Hill
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) Trent Williams/George Robertson
CERTIFIED LABORATORY(S) Duke F.ner v Carolinas LLC NC Lab #248
Shealy Environmental Services, Inc. NC Lab #329
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2019
(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. (980) 373-2820
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Outfall
Date
50050
00400
01077
01002
01022
01012
01027
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
pH
Silver, Total (as
Ag)
Arsenic,
Total (as As)
Boron, Total
(as B)
Beryllium,
Total (as Be)
Cadmium,
Total (as Cd)
mo/dd/ r
MG
inches
m /L
m /L
m /L
m /L
m /L
SWO02
4/12/19
N/A
1.00
7.5
<0.0002
<0.001
<0.05
<0.001
<0.001
SWO03
4/12/19
N/A
1.00
7.9
<0.0002
<0.001
<0.05
<0.001
<0.001
SWO04
4/12/19
N/A
1.00
8.1
<0.0002
<0,001
<0.05
<0.001
<0.00I
SWO06
4/12/19
N/A
1.00
8.1
SWO10
4/12/19
N/A
1.00
8.2
SWOII
4/12/19
N/A
1.00
8.0
SWO18 1
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH
OF APRIL 2019
Outfall
Date
01034.
01042
01067
01051
01097
01147
01059
01092
No.
Sample
Collected
Chromium,
Total as Cr
Copper, Total
(as Cu)
Nickel, Total
as Ni
Lead, Total
as Pb
Antimony,
Total as Sb
Selenium,
Total (as Se)
Thallium,
Total As TI
Zinc, Total (as
Zn
mo/dd/ r
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
SWO02
4/12/19
<0.001
0.00182
<0.001
<0.001
<0.001
<0.001
<0.0002
0A24
SWO03
4/12/19
<0.001
0.00119
<0.001
<0.00I
<0.001
<0.001
<0.0002
0.030
SWO04
4/12/19
<0.001
0.00325
<0.001
<0.001
<0.001
<0.001
<0.0002
0.026
SWO10
4/12/19
0.017
0.161
SWOT 1
4/12/19
0.012
0.260
Permit Number NCS000549 Form SWU-247, last revised 21212012
pnoP I of I
Outfall
No.
Date
Sample
Collected
71900
CO530
00556
Mercury, Total, Method
1631 E
Solids, Total
Suspended -
Concentration
Oil & Grease
mo/dd/ r
u /L
m /L
m /L
SW002
4/12/19
3.33 Avg.
10
<5.0
SW003
4/12/19
0.975
<5
<5.0
SW004
4/12/19
6.67
19
SW006
4/12/19
8.0
<5.0
SW010
4/12/19
78
<5.0
SWOl1
4/12/19
26
<5.0
SW018
I N/A
NO QUALIFYING FLOW FOR THE MONTH OF
APRIL 2019
Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/ r
u /L
u /L
u /L
u /L
u /L
u IL
u /L
SW006
4/12/19
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Benchmark exceedances include Zinc at SW010 SWOT l; Copper at SWO10 and SWO1 1.
Avg — Average of primary and duplicate mercury samples (3.33 ng/L and 3.32 ng/L = 3.33 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 Activitv Monitoring Requirements
Outfall
i Date
50050
00556
00530
00400
Total Flow
Total
Oil &Grease
Non -polar
Total
pH
New Motor
No.
Sample
Collected
(if applicable)
Rainfall
(if appl.)
O&G/TPH
Suspended
Oil Usage
(Method 1664
Solids
SGT-HEM), if
appl.
mo/ddl r
I MG
linches
I m /l
m /l
unit
al/mo
Permit Number NCS000549 Form S W U-247, last revised 21212012
psow 9 ni ;
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date4/12/19 Attn: Central Files
Total Event Precipitation (inches): 1.00 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.)
"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 are significant penalties for submitting false information,
including the possibility of� imprisonment for knowing violations."
5-1
(Signature of Permittee)
(Date)
Permit Number NCS000549
Form SWU-247, last revised 2/2/2012
P"Op . nF i