NCS000554_Monitoring Report_20210809

DUKE
ENERGY.
August 5, 2021
NC Department of Environmental Quality
Mooresville Regional Office
Attention: NPDES Storm Water
610 East Center Avenue Suite 301
Mooresville, NC 28115
AUG 0 9 2021
Duke Energy
Buck Combined Cycle
1385 Dukeville Road
Salisbury, NC 282146
0
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge Monitoring Report for:
Buck Combustion Turbine Combined Cycle (CTCC) Station — NCS000554 — Rowan County
In accordance with current NC DEQ Storm water program, attached you will find the original signed hard
copy of our Year 4 Period 2 DMR for our permitted stormwater ouffall.
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 5770
Return Receipt USPS: 9590 9402 5350 9154 1983 85

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000554
FACILITY NAME Buck Combustion Turbine Combined Cycle (CTCC) Station
PERSON COLLECTING SAMPLE(S) Mark Clemons/Sally Modad - Cardno
CERTIFIED LABORATORY(S) Duke Energy of the Carolinas. LLC Lab #248
Shealy Environmental Services, NC 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.)
Outfall
No.
Date
Sample
Collected
50050
00400
Total
Flow (if app.)
Total
Rainfall
pH
mo/dd/ r
MG
inches
SW001
7/8/21
N/A
0.31
7.9
Outfall
No.
Date
Sample
Collected
01042
Copper, Total
(as Cu)
mo/dd/ r
m
SW001
7/8/21
<0.005
Outfall
Date
No.
Sample
Ammonia
Total Nitrogen
Collected
mo/dd/ r
m -N/L
m -N/L
SW001
7/8/21
0.423
0.94
Outfall
No.
Date
Sample
Collected
CO530
00556
Solids, Total
Suspended -
Concentration
Oil & Grease
mo/dd/ r
m
m
S W 001
7/8/21
3.9
<4.9
COUNTY Rowan
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
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Permit Number NCS000554 Form SWU-247, last revised 22/2012
Page 1 of 2

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
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/ r
MG
inches
m
m
unit
gallmo
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 7/8/21 Attn: Central Files
Total Event Precipitation (inches): 011 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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
i; S rim(
(Date)
Permit Number NCS000554
Form SWU-247, last revised 2122012
Page 2 of 2