NCS000546 DMR SW (7)

( DUKE
C04)
ENERGY.
August 24, 2016
NC Department of Environmental Quality
Attention. Central Files
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge onitoring Report for:
Allen Steam Station — UN--0�w Q54 Gaston County
Allen Steam Station
Duke Energy
253 Plant Allen kid.
Belmont, NC 28012
UEDVED
AUG 2 5 2016
CENTRAL FILES
DWR SECTION
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 and are now subject to monthly sampling, are attached. The period for sampling ended
on July 31, 2016.
Enclosed is the DMR for outfall= 0 . This outfall is indicated as "No Flow" for the sampling
period. There were no samples collected from this outfall due to either night time rainfall events
or inclement weather conditions.
Please direct any correspondence or questions concerning the Allen Steam Station NPDES
Storm Water Program to Ross Hartfield at [phone].
Yours truly,
S",4
Brent Dueitt, General Manager II
Allen Steam Station
Fossil Hydro- Carolinas West
Attachments
bc: w/attachment
Ross Hartfield
Tina Woodward
Don Scruggs
UPS Tracking: 1Z X67 601 24 9398 0217

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number N(w 00;x. �� I
IMUS 2 5 2016
FACILITY NAME Allen Steam Station CENTRAL FILES
PERSON COLLECTING SAMPLE(S) Staff/Ve '' SECTION
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: 2016
(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 2.
Outfall 'Date
50050
00556
00530
00400
No. Sample
Collected
Total,
Flow if app.),
Oil & Grease
.(if appl.)
Non polar
O&G/TPH
(Method 1664
SGT -HEM), if
a .l.
Total
Suspended
Solids,
pH
New Motor
Oil Usage
mo/dd/ r °,
mo/dd/ r _
MG,
m /I
1m /1
unit
al/mo
SW018* N/A
N/A
"NO FLOW" AT THIS OUTFALL DURING THE MONTH OF July, 2016.
* THIS OUTFALL HAS ELEVATED TO THE TIER 2 STATUS AND MUST BE SAMPLED ON A MONTHLY BASIS UNTIL THREE CONSECUTIVE SAMPLE
RESULTS ARE BELOW THE BENCHMARK VALUE OR WITHIN BENCHMARK RANGE.
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 Monitorine Requirements
Outfall Date,
No. 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
a .l.
Total
Suspended
Solids,
pH
New Motor
Oil Usage
mo/dd/ r °,
MG
inches
m /I
1m /1
unit
al/mo
Form SWU-247, last revised 2/2/2012
Page 1 of 4

STORM EVENT CHARACTERISTICS:
Date N/A
Total Event Precipitation (inches): N/A
Event Duration (hours): N/A (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.)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"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."
(Signature of Permittee)
T-
(Date)
Form SWU-247, last revised 2/2/2012
Page 2 of 4

ROW
August 24, 2016
NC Department of Environmental Quality
Attention: Central Files
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Duke Energy Carolinas, LLC
NPDES Storm Water Discharge Monitoring Report for:
Allen Steam Station A,' CS,g016— Gaston County
Allen Steam Station
Duke Energy
253 Plant Allen Rd.
Belmont, NC 28012
IzIVe r)
AUG 2 5 2016
fJ p,3
f.3Ul/1=c SeC1--LeS
Qin
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 are attached The samples collected are
required monthly due to Tier Two Status. The period for sampling ended July 31, 2016.
Samples were collected from outfalls on July 21, 2016. Samples for the following outfalls were
collected: SW016 and SW020. The laboratory results were received on August 5, 2016.
Analytes sampled above the benchmark values for analytical monitoring are as follows. Duke
Energy has performed the steps required by the Tier One and Tier Two status for these
outfalls.
OutfaIll Parameter I Result I Benchmark
Zinc 0.162 mg/L 0.126 mg/L
All values reported on the attached reports are dependent on the accuracy of approved
analytical methods used to measure parameters.
Please direct any correspondence or questions concerning the Allen Steam Station NPDES
Storm Water Program to Ross Hartfield at [phone].
Yours truly,
S"a
Brent Dueitt, General Manager II
Allen Steam Station
Fossil Hydro- Carolinas West

Attachments
bc- w/attachment Ross Hartfield
Tina Woodward
Don Scruggs
UPS Tracking: 1Z X67 601 24 9398 0217

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS �aQO_�4, SAMPLES COLLECTED DURING CALENDAR YEAR: 2016
RECEIVED(This monitoring report shall be received by the Division no later than 30 days from
AUG 2 5 M6 the date the facility receives the sampling results from the laboratory.)
FACILITY NAME Allen Steam Station CENTR A I F11 �
PERSON COLLECTING SAMPLE(S)
CERTIFIED LABORATORY(S) Duke Energy of the Carolinas, 1:11C A69#248
Shealy Environmental Services, NC Lab #329
Part A: Specific Monitoring Requirements
COUNTY Gaston
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall Date
50050
01027
00400
00530
'01022-
01092
01097
01002
No. Sample
Collected-
Total -
Flow (if app)
Total
Rainfall
pH
Solids, Total
Suspended - ,
Concentration
Boron, Total
(as B)
Zinc, Total (as
Zn)
Antimony,
Total (as Sb)
Arsenic, Total
as,(As)
mo/dd/ r
MG
inches
SU
m /L
m /L
m /L
m /L
m /L
SWO16 7/21/2016
N/A
10.24
17.05
148
0.139
0.049
<0.001
0.00636
Outfall, Date
01012
01027
01034
01042
01051
01067
01147
01077
No. Sample
Collected
Beryllium,
Totale(as.Be)
`Cadmium,
'Total (as Cd)
Chromium,
Total (as Cr)
Copper, Total,
(as=Cu)
Lead, Total
(as Pb)
Nickel, Total
(as Ni)
Selenium,
Total (as Se)
Silver, Total'
(as Ag)
mo/dd/ r
m /.L
m /L
m /L
m /L
m /L
m /L
m /L
mg 7L
SWO16 7/21/2016
<0.001
I <0.001
10.00294
0.00768
10.0014
10.00244
0.00305
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as,TI)
Mercury, .
Total, Method
1631E
mo/dd/ r
m /L
n /L
SWO16 7/21/2016
1 <0.0002
12.05
Outfall Date
50050
00400-
00530
01022
01092
01097
01002,-
1002:,No.
.No.Sample -
Collected
Total
Flow (if app.)
Total-
Rainfall
pH
Solids, Total "
Suspended-
Concentration
Boron, Total
(as B)
Zinc, Total (as
Za)_
Antimony,
Total (as Sb)
Arsenic, Total
as (As)
mo/dd/ r
MG
inches`
SU
m /L
mg/L,
m /L
m /L
m /L
SW020 7/21/2016
N/A
0.24
6.78
12
<0.05
0.162
<0.001
<0.001
NCS000546 Form SWM -247, last revised 21212012
Page lof 3

Outfall Date
01012
01027
01034
01042
01051
01067
01147
01077
No. Sample
Collected
Beryllium,
Total (as Be)
Cadmium,
Total (as Cd)
Chromium,
Total (as Cr)
Copper, Total
(as Cu)
Lead, Total
(as Ph)
Nickel, Total
(as Ni)
Selenium,
Total (as Se)
Silver, Total
(as Ag)
mo/dd/ r
m /L
m /L
m /L
m /L
m /L
m /L
m /L
m /L
SW020 7/21/2016
<0.001
<0.001
I <0.001
10.00584
<0.001
0.00244
<0.001
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as TI)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW020 7/21/2016
<0.0002
11.9
NCS000546 Form SWU-247, last revised 2/2/2012
Page 2of 3