NCS000546_MONITORING INFO_20190414

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
nl C� o o o 7
DOC TYPE
❑�/FINAL PERMIT
CT MONITORING REPORTS
0 APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
I� V 1 I
❑� V
YYYYMMDD

('DUKE
ENERGY
April 8, 2019
NC Department of Environmental Quality
Attention: Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Storm water Discharge Monitoring Report for:
Allen Steam Station — NCS000546 — Gaston County
Allen Steam Station
Duke Energy
253 Plant Allen Rd.
Belmont, NC 28012
APR � 4 2a19
CEN1 tZ t FILES
In accordance with Part III, E(2) of the above referenced NPDES Storm water permit, the
original and one copy of the quarterly monitoring reports for Year 4 — Period 3 are attached. The
period for sampling ended on March 31, 2019.
Outfails SW001A, SW002, SW003, SW005, SW008, SW013-7, SW013-8, SW013-9, SW013-
10, SW013-11, SW013-12, SW013-13, SW013-14, SW013-15 and SW015. are listed as "No
Qualifying Flow" during the period. Samples were not collected from these outfalls due to night
time rainfall events, inclement weather or lack of qualifying rainfall events during the period.
Please direct any correspondence or questions concerning the Allen Steam Station NPDES
Stormwater Program to Elizabeth Glenn at [phone].
Yours truly,
Terry Tuck, General Manager II
Allen Steam Station
Fossil Hydro- Carolinas West
Attachments
bc: w/attachment
Elizabeth Glenn
Tina Woodward
Steve Hodges
UPS Tracking: 1Z X67 601 24 9417 3918

STOWMWATE R DISCHARGE OUTFALL (SDO)
,ti9ONITORING REPORT
Permit Number NCS 000546 SA,),-IPLES 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.)
FACILITY NAME Allen Steam Station
PERSON COLLECTING SAMPLE(S) StaffNendor
CERTIFIED LABORATORY(S) Duke Enerpv of the Carolinas, LLC Lab #248
Shealv Environmental Services, NC_Lab #329
Part A: Specific Monitoring, Requirements
COUNTY Gaston
PHONE NO. (70 ) 829-2350
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Outfall
Date
50050
Total
No.
Sample
Collected
Flow (if app.)
moldd/ r
MG
S11'OOIA
NA
NA
NO QUALIFYING FLOW AT "THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH ,MARCH 31, 2019.
SWOO2
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH ,iNIARCH 31, 2019.
SNVO03
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SW005
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SWOO8
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH R7ARCH 31, 2019.
SWO13-7
NA
NA
NO QUALIFYING FLOW,AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SW013-8
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SWO13-9
NA
NA
NO QUALIFYING FLO1Y AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SWO13-10
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SW013-11
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 21119
THROUGH MARCH 31, 2019.
SWO13-12
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SWO13-13
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 21119
THROUGH NIARCH 31, 2019.
Farm SWU-247. lust revised 212/2012
Paue I of 3

SWO13-14
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SWO13-15
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3, JANUARY 1, 2019
THROUGH MARCH 31, 2019.
SW015
NA
NA
NO QUALIFYING FLONV AT THIS OUTFALL DURING THE YEAR 4 PERIOD 3. THIS OUTFALL WAS
ADDED TO THE STORMWATER PERNIIT ON NIARCH 7, 2019.
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 I3)
Part 13: Vehicle it'laintenance Activity iMonitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00556
00530
00400
Total Flow
(if applicable)
Total
Rainfall
Oil & Grease
(if appl.)
Non -polar
O&G/TPH
(Method 1664
SGT-HEM), if
appl.
Total
Suspended
Solids
pH
New Motor
Oil Usage
moldd/ r
MG
inches
m
m
unit
al/mo
STORM EVENT CHARACTERISTICS:
Date NIA
Total Event Precipitation (inches): N/A
Event Duration (hours): N/A (only if applicable — sec permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicahle — sec permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1 b 17
Form SWU-247. lust revised 21212012
Pave 2 of 3

"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. f am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
/t/ - JZI�L
(Signature of
q1S Z/7
(Date)
Form SWU-247, last revised 2/212012
Pave 3 43

IDUKE
VENERGY.
April 8, 2019
NC Department of Environmental Quality
Attention: Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge Monitoring Report for:
Allen Steam Station — NCS000546 — Gaston County
Allen Steam Station
253 Plant Allen Ret
Belmont, NC 25012
704 829-2587
In accordance with Part III, E(2) of the above referenced NPDES Storm Water permit, the original and one
copy of the monthly monitoring reports for the outfalls that have been classified as Tier 2 or Tier 3 and are
now subject to monthly sampling, are attached. The period for sampling ended on March 31, 2019,
Enclosed is the DMR for outfalls SW001, SW007, SW009, SW010, SW016, SW018 and SW020.There
were no samples collected from these outfalls and are listed as "No Qualifying Flow" for the sampling
period. This was due to either nighttime rainfall events or lack of qualifying rainfall events.
Please direct any correspondence or questions concerning the Allen Steam Station NPDES Storm Water
Program to Elizabeth Glenn at [phone].
Yours truly,
Jf� W . 14,`c,-
Terry W. Tuck, General Manager II
Allen Steam Station
Duke Energy Carolinas, LLC
Attachments
bc: w/attachment Elizabeth Glenn
Steve Hodges
Tina Woodward
UPS Tracking: 1Z X67 601 24 9417 3918

STORMWATER DISCHARGE OUTFALL (SDO)
i\MONITORING REPORT
Permit Number NCS000546 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.)
FACILITY NAME Allen Steam Station COUNTY Gaston
PERSON COLLECTING SAMPLE(S) NA PHONE NO. [phone]
CERTIFIED LABORATORY(S) Duke Energy Carolinas, LLC NC Lab #248
Shealy Environmental Services, Inc. NC Lab #329
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Part A: Specific Monitoring Requirements
Outfall
No.
Date
Sample
Collected
50050
00400
01077
01002
01022
(11012
01027
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
mgfL
m L
SWOOI
N/A
NIA
NO QUALIFYING FLOW FOR THE INIONTH
OF MARCH 2O19
SWO07
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SW009
NIA
N/A
NO QUALIFYING FLOW FOR THE INIONTH OF MARCH 2O19
SWO10
N/A
N/A
NO QUALIFYING. FLOW FOR THE MONTH OF MARCH 2019
SWO16
N/A
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SWOIS
NIA
N/A
NO QUALIFYING FLOW FOR THE MONTH OFMARCH 2019
SW020
NIA
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
Outfall
No.
Date
Sample
Collected
01034
01042
01067
01051
01097
01147
01059
01092
Chromium,
Total (as Cr)
Copper, Total
(as Cu)
Nickel, Total
(as NO
Lead, Total
(as Pb)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As TO
Zinc, Total (as
Zn)
mo/dd/vr
m L
m L
m
m L
m
m L
m L
m
SWOOI
N/A
NO UALIFYING
FLOW FOR THE MONTH OF MARCH 2O19
SWO07
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SW009
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SWO10
N/A
NO QUALIFYING FLOW FOR THE `MONTH OF MARCH 2O19
SWO16
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SW018
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SW020
N/A
NO QUALIFYING FLOW FOR THE NIONTH OF MARCH 2O19
Permit Number NCS000546 Form SWU-247, last revised 21212012
Page 1 of 3

Outfall
No.
Date
Sample
Collected
71900
C0530
00556
Mercury, Total,
Method 1631E
Solids, Total
Suspended -
Concentration
Oil & Grease
molddl r
n
m L
m L
SWOOI
NIA
NO QUALIFYING FLOW FOR THE iNIONTH OF MARCH 2019
SIVO07
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2019
SW009
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SWO10
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SWO16
NIA
NO QUALIFYING. FLOW FOR THE MONTH OF MARCH 2O19
SWO18
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
SW020
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MARCH 2O19
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per tnonih'? _ yes X no
(il' yes, complete Part B)
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
appl.
molddlvr
MG J
inches
m
m
unit
al/mo
NOTE: March 2019 samples not collected due to unqualified rain events or adverse weather conditions.
STOWNI EVENT CHARACTERISTICS:
Date NA
Total Event Precipitation (inches): NA
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 il' applicablc — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Permit Number NCS000546 Form SWU-247. lust revised 21212012
Page 2 of 3

"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."
Jtic,— S 1
(Signature of ermittee) (Dat )
Permit Number NCS000546 Form SWU-247, last remised 22/2012
Page 3 of 3