NCS000546_MONITORING INFO_20190606

M�a
STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
NC� DVU
DOC TYPE
❑FINAL PERMIT
MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ aul / U
YYYYMMDD

DUKE
'� ENERGY.
Allen Slecrut Station
253 Plant Allen Rd.
Belmont, NC 28012
704 829-2587
June 4, 2019
PZ
NC Department of Environmental Quality
JUN 06 2019
Attention: Central Files
CGNT-"ALPILES
Division of Water Resources
nC7101\!
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
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
subject to monthly sampling, are attached. The period for sampling ended on May 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 Robert Wylie at [phone].
Yours truly,
W-
Terry W. Tuck, General Manager 11
Allen Steam Station
Duke Energy Carolinas, LLC
Attachments
bc: w/attachment Robert Wylie
Steve Hodges
UPS Tracking: 1 Z X67 601 24 9115 4908

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000546
FACILITY NAME Allen Steam Station
PERSON COLLECTING SAMPLE(S) NIA
CERTIFIED LABORATORY(S) Duke Energv Carolinas, LLC NC Lab #248
Shealy Environmental Services, Inc. NC Lab #329
Part A: S ecilic 19onitorin Re uirements
SA,IIPLES 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. [phone])
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 3.
Outfall
No.
Date
Sample
Collected
50050
00400
01077
01002
01022
01012
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)
moldd/yr
MG
inches
m L
m L
m L
m L
m L
SW001
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH
OF MAY 2019
SWO07
NIA
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW009
NIA
NIA
NO QUALIFYING FLOW FOR THE NIONTH OF tiIAY 2019
SW010
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
S%V016
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH OF NIAY 2019
S"1018
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW020
NIA
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
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 Tl)
Zinc, Total (as
Zn)
moldd/ r
m L
m L
m L
m L
m L
m L
mgtL
m L
S«'00I
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SWO07
NIA
NO QUALIFYING FLOW FOR THE NIONTH OF MAY 2019
SW009
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SWOW
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SWO16
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SWO18
NIA
NO QUALIFYING FLOW FOR THE NIONTH OF MAY 2019
SNN'020
NIA
NO QUALIFYING FLOW FOR THE INIONTH OF MAY 2019
Permit Number NCS000546 Form SWU-247, last rei,ised 21212012
Pa,c 1 of 3

Outfall
No.
Date
Sample
Collected
71900
C0530
00556
Mercury, Total,
Method 1631E
Solids, Total
Suspended -
Concentration
Oil & Grease
nto/dd/ r
n L
in L
m L
SW001
N/A
NO QUALIFYING FLOW FOR THE NIONTH OF NIAY 2019
SW007
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW009
N/A
NO QUALIFYING FLOW FOR THE MONTH OF NIAY 2019
SW010
NIA
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SW016
N/A
NO QUALIFYING FLOW FOR THE MONTH OF NIAY 2019
SW018
N/A
NO QUALIFYING FLOW FOR THE MONTH OF MAY 2019
SNV020
N/A
NO QUALIFYING FLOW FOR THE N90NTH OF NIAY 2019
Does this facility perform Vehicle Maintenance Activities using niore than 55 gallons of new ruotor oil per month'? _ yes X no
(if ycs, complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
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/dd/ r
N1G
inches
mgA
m
unit
gaUmo
STORM EVENT CHARACTERISTICS:
Date NA
Total Event Precipitation (inches): NA
Event Duration (hours): (only if applicable — sec permit.)
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — see permit.)
Mail Original and one copy to:
Division of Water Quality
Ann: Central Files
1617 Mail Service Center
Raleigh. North Carolina 27699-1617
Permit Number NCS000546 Form SW U-247, lust revised 2)2/2012
Pave 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 e-,Faluate the information submitted. Rased 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 tines and imprisonment for knowing violations."
W
(Signature of P rmittee)
G o
(Date)
Pennii Number NCS000546 Form SWU-247. least revised 21212012
Page 3 of 3

RECOVER
Permit Number NCS000546 MAY 16 2019
CENTRAL FILES
DWR SECTION
STORNIWATER DISCHARGE OUTFALL (SDO)
NMONITORING REPORT
SANIPLES COLLECTED DURING CALENDAR YEAR. 2019
(This monitoring report shall he received by the Division no later than 30 days from
the date the facility receives the sampling results from the laboratory.)
FACILITY NANME Allen Steam Station
PERSON COLLECTING SANMPLE(S) NMiles Hamilton/Steve Hamilton/joshua Sexton
CERTIFIED LABORATORY(S) Duke -Energy Carolinas, LLC NC Lab #248
Shealy Environmental Services, Inc. NC Lab #329
Part A. Specific \Monitoring Requirements
COUNTY Gaston
PHONE NO. [phone]
SIGNATURE OF PERNMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
Date
50050
00400
01077
01002
01022
01012
01027
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
pH
Silver, Total (as
Ag)
ArsenicjAs)
Total (a(as
Boron, Total
B)
Beryllium,
Total (as Be)
Cadmium,
Total (as Cd)
mo/dd/ r
MG
inches
m L
m Lm
L
m L
m r L
SNVO16
4/2/19
N/A
0.11
7.6
<0.0002
<0.001
<0.05
<0.00I
<0.001
SWII18
4/2/19
NIA
0.11
7.7
<0.0002
1 amoI
<0.05
<0.00I
<O.1101
SWOI8
4/19/19
NIA
0.32
7.5
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 Tl)
Zinc, Total (as
Zn)
mo/dd/vr
m L
m L
m L
m L
m L
m L
m L
m L
SWO16
4/2/19
<0.001
0.00117
<0.001
<0.001
<0.001
<0.001
<0.0002
0.072
SW018
4/2/19
1 <O.0(I1
1 <(1.(101
I <IwoI
<0.00I
<0.001
<0.001
<0.0002
<0.005
Outfall
No.
Date
Sample
Collected
71900
CO530
00556
Mercury, Total,
Method 1631E
Solids, Total
Suspended -
Concentration
Oil & Grease
mo/dd/vr
n L
m L
m L
SWO16
4/2/19
<0.5
<5
SWO18
4/2/19
111.507 Avg
<5
SW018
4/19119
1
1
1 <5.0
Avg — Average of primary and duplicate mercury samples (0.510 ng/L and 0.503 n(I/L = 0.507 ng/L)
Does this facility perform Vehicle Maintenance Activities using more than 55 ;allons oi' new motor oil per month?
(if yes, complete Part B)
yes X no
Permit Numher NCS000546 Form SWU-247. last revised 2/212012
Pace 1 of 2

Part B: Vehicle IN-Tainlenance Activity iMonitoring Requirements
Outfall
Date
50050
09556
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/dd/vr
INIG
inches
m
mgA
unit
al/mo
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 4/2119 Attn: Central Files
Total Event Precipitation (inches): 0.11 1617 Mail Service Center
Event Duration (hours): (only if applicable — see permit.) Raleigh. North Carolina 27699-1617
(if more than one s(ortn event was sampled)
Date 4/19/19
Total Event Precipitation (inches): 0.32
Event Duration (hours): (only il' applicahle — see perniit.)
"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
hest 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."
Al,
(Signature of P rmittee) (Date)
Permit Number NCS000546 Form SWU-247, lust revised 21Z12012
Paec 2 42

STORNIWATER DISCHARGE OUTFALL (SDO)
NIONITORING REPORT
Permit Number NCS 000546 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
PERSON COLLECTING SAMPLE(S) _StaffNendor
CERTIFIED LABORATORY(S) Duke Enerpv of the Carolinas, LLC Lab #248
Shealy Environmental Services, NC Lai) #329
Part A: Specific Monitoring Requirements
COUNTY Gaston
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall
No.
Date
Sample
Collected
50050
Total
Flow (if app.)
mo/dd/ r
MG
SW001
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE MONTH OF APRIL, 2019.
SW007
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE MONTH OF APRIL, 2019.
SW009
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING. THE MONTH OF APRIL, 2019.
SW010
NA
NA
NO QUALIFYING FLOW Al- THIS OUTFALL DURING THE MONTH OF APRIL, 2019.
PW020
NA
NA
NO QUALIFYING FLOW AT THIS OUTFALL DURING THE MONTH OF APRIL, 2019.
Dues this Facility perform Vehicle Maintenance Activities using more [han 55 gallons of new motor oil per month'' , yes x no
(if yes, complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall
No.
Date
Sample
50050
00556
00530
00400
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
1NIG
inches
m
m
unit
al/mo
Form SWU-247, last revised 2/2/?012
Page 1 of 2

STOR,NI EVENT CHARACTERISTICS:
Date NIA
Total Event Precipitation (inches): NIA
Event Duration (hours): NIA (only if applicable —see permit.)
(if more than one storm event was samples])
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicahle — see permit.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh. North Carolina 27699-1617
"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. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
(Signature of
/ 0./7
(Date)
Form SWU-247. lass revised 2/2/2012
Page 2 of 2