NCS000578_Monitoring Report_20210809

DUKE
ENERGY:
AUG 09 202,
August 5, 2021
NC Department of Environmental Quality
Mooresville Regional Office
Attention: NPDES Storm Water
610 East Center Avenue Suite 301
Mooresville, NC 28115
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge Monitoring Report for:
Buck Steam Station — NCS000578 — Rowan County
Duke Energy
Buck Combined Cycle
1385 Dukeville Road
Salisbury, NC 28146
In accordance to the current NC DEQ Storm water program, attached you will find the original
signed hard copy of our July 2021 DMR.
Enclosed is the DMR for ouffalls SW001, SW002, SW003, SW0048, SW056, SW073, SW075,
SW077, SW078, SW079, SWO80 and SW081. The only sample collected from these outfalls
was from Outfall SW075. This was due to either nighttime rainfall events, inclement weather or
lack of qualifying rainfall events.
Please direct any correspondence or questions concerning the Buck Steam Station NPDES
Storm Water Program to Steve Cahoon at [phone] or Dale Wooten at [phone].
Yours truly,
Kristopher C Eisenrieth
General Manager
Buck Combined Cycle
Attachments
bc: w/attachment Steve Cahoon
Mailed by USPS: 7015 3430 0000 4523 5787
Return Receipt USPS: 9590 9402 5350 9154 1983 92

STORMWATER DISCHARGE OUTFALL (SDO)
y-ajONITORING REPORT
Permit Number NCS000578 O
cJ C
FACILITY NAME Buck Steam Station l
PERSON COLLECTING SAMPLE(S) Mark Clemons/Sally Madad - Cardno
CERTIFIED LABORATORY(S) Duke Energy Carolinas, LC Lab # 248
Pace Analytical Services Lab #329
Part A: Specific Monitoring Requirements
SAMPLES COLLECTED DURING CALENDAR YEAR: 2021
(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 Rowan
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 4.
Outfall
No.
Date
Sample
Collected
50050
00400
01077
01002
01022
01012
01027
Total
Flow (if app.)
Total
Rainfall
pH
Silver, Total (as
A)
Arsenic, Total
(as As)
Boron, Total
(as B)
Beryllium,
Total (as Be)
Cadmium,
Total (as Cd)
mo/dd/yr
MG
inches
m
m
mgfL
m
mpJL
SW001
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO02
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO03
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW048
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW056
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW073
N/A
N/A
NOQUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW075
7/8/21
N/A
0.31 17.5 1 <0.0003 1 <0.001 <0.05 <0.001 <0.001
SW077
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW078
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW079
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW080
1 N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW081
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Outfall
No.
Date
Sample
Collected
01034
01042
01067
01051
01097
01147
01059
01092
Chromium,
total (as Cr)
Copper,
Total
(as Cu)
Nickel, Total
(as Ni)
Lead, Total (as
Ph)
Antimony,
Total (as Sb)
Selenium, Total
(as Se)
Thallium,
(Total as TI)
Zinc, Total (as
Zn)
mo/dd/yr
mg/L
mg(L
mgtL
m
m
m
m
m
SW001
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO02
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO03
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW048
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Permit Number NCS000578
Form SWU-247, last revised 61122015
Page 1 of 4

Outfall
No.
Date
Sample
Collected
01034
01042
01067
01051
01097
01147
01059
01092
Chromium,
total (as Cr)
Copper,
Total
(as Cu)
Nickel, Total
(as Ni)
Lead, Total (as
Ph)
Antimony,
Total (as Sb)
Selenium, Total
(as Se)
Thallium,
(Total as TI)
Zinc, Total (as
Zn)
mo/dd/yr
mg/L
mg/L
mg1L
m
m
m
m
m
SWO56
N/A
NO QUALIFYING
FLOW FOR THE MONTH OF
JULY 2021
SW073
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW075
7/8/21
<0.001 10.00207 10.00102 1 <0.001
<0.001
<0.001 1 <0.0002
0.024
SW077
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW078
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW079
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW080
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW081
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Outfall
No.
Date
Sample
Collected
71900
C0530
00556
Mercury, Total,
Method 1631E
Solids, Total
Suspended —
Concentration
Oil & Grease
mo/dd/yr
ng/L
I mg/L
m
SW001
N/A
NO QUALIFYING FLOW FOR THE MONTH
OF JULY 2021
SWO02
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO03
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW048
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO56
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW073
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW075
7/8/21
3.29 Avg 9.4
SW077
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW078
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW079
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO80
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW081
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/yr
ug/L
ug/L
u
u
u
u
u
SW001
N/A
NO QUALIFYING
FLOW FOR THE MONTH OF
JULY 2021
SW002
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SWO03
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW048
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW056
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Form SWU-247, last revised 611212015
Permit Number NCS000578
Page 2 of 4

Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/yr
ug/L
ug/L
u
u
u
u
u
SW078
N/A
NO QUALIFYING FLOW FOR THE MONTH OF
JULY 2021
SW079
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW080
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
SW081
N/A
NO QUALIFYING FLOW FOR THE MONTH OF JULY 2021
Avg — Average of primary and duplicate mercury samples (3.6 ng/L and 2.97 ng/L = 3.29 ng/L).
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons *of new motor oil per month? 0 yes Q no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activitv Monitorine 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
appl.
mo/dd/yr
MG
inches
mg/l
mg/l
unit
gal/mo
STORM EVENT CHARACTERISTICS:
Date 7/8/21
Total Event Precipitation (inches): 0.31
Event Duration (hours): (only if applicable — see permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Permit Number NCS000578
Mail Original and one copy to:
Division of Energy Mineral and Land Resources
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Form SWU-247, last revised 611212015
Page 3 of 4

"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,
includh g the possibility of fines and imprisonment for knowing violations."
S
6-
(Sitfiature of Permittee) (Date)
Permit Number NCS000578 Form SWU-247, last revised 61122015
Page 4 of 4