NCS000546 DMR SW (3)

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS 000546 SAMPLES COLLECTED DURING CALENDAR YEAR: 2015
(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 Energy of the Carolinas, LLC Lab #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
No. Sample
Collected
50050
01027
00400
00530
01022
01092
01097
01002
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
SWO05 12/17/2015
1 N/A
11.25
18.67
17
<0.05
0.061
<0.001
0.00108
Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
m/L
SWO05 12/17/2015
<0.001
<0.001
<0.001
0.00392
1 <0.001
10.00101
0.00107
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as Tl)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SWO05 12/17/2015
<0.0002
13.86
Outfall Date
No. Sample
Collected
50050
00400
00530
01022
01092
01097
01002
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
SWO07 12/17/2015
N/A
11.25
19.43
1220
<0.05
0.409
<0.001
0.0026
Permit Number NCS000546 Form SW -U-247, last revised 21212012
Page lof5

Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
m/L
SW007 12/17/2015
<0.001
I <0.001 10.00298
18.83
10.00469
10.0023
10.00207
<0.001
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as Tl)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW007 12/17/2015
<0.0002
17.94
Outfall Date
No.Sample
Collected
50050
01027
00400
00530
01022
01092
01097
01002-
1002No.
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
SW013-05 12/17/2015
1 N/A
1.25
18.83
18
0.094
10.059
<0.001
<0.001
Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
.m /L
SW013-05 12/17/2015
<0.001
<0.001
<0.001
0.00354
1 <0.001
10.00495
10.00165
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as Tl)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW013-05 12/17/2015
<0.0002
14.14
Permit Number NCS000546 Form SWU-247, last revised 212/2012
Page 2of 5

Outfall Date
No. Sample
Collected
50050
01027
00400
00530
01022
01092
01097
01002
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
SW013-06 12/17/2015
N/A
1.25
8.16
16
10.068
0.064
<0.001
<0.001
Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
m /L
SW013-06 12/17/2015
<0.001
<0.001
<0.001
0.00296
<0.001
0.00274
0.00141
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as Tl)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW013-06 12/17/2015
<0.0002
4.16
Outfall Date
No. Sample
Collected
50050
01027
00400
00530
01022
01092
01097
01002
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
SW013-08 12/17/2015
N/A
11.25
8.00
22
<0.05
0.07
<0.001
0.00121
Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
m /L
SW013-08 12/17/2015
<0.001
<0.001
10.00128
0.00518
0.00111
0.00339
<0.001
<0.0003
Permit Number NCS000546 Form SWU-247, last revised 21212012
Page 3 o 5

Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as TI)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW013-08 12/17/2015
<0.0002
17.69
Outfall Date
No. Sample
Collected
50050
01027
00400
00530
01022
01092
01097
01002
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
SW013-10 12/17/2015
N/A
1.25
8.70
40
<0.05
0.01
<0.001
<0.001
Outfall Date
No. Sample
Collected
01012
01027
01034
01042
01051
01067
01147
01077
Beryllium,
Total (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
m /L
SW013-10 12/17/2015
<0.001
<0.001
0.00153
0.00537
0.00111
0.00172
<0.001
<0.0003
Outfall Date
No. Sample
Collected
01059
71900
Thallium,
Total (as Tl)
Mercury,
Total, Method
1631E
mo/dd/ r
m /L
n /L
SW013-10 12/17/2015
<0.0002
18.98
Exceedances include pH at SW007, Zinc (Zn) at SW007, and TSS at SW007
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 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.
mo/dd/ r
MG
inches
m /l
m /l
unit
al/mo
Permit Number NCS000546 Form SWU-247, last revised 21212012
Page 4of 5

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 12/17/2015 Attn: Central Files
Total Event Precipitation (inches): 1.25 1617 Mail Service Center
Event Duration (hours): NA (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."
(Signature of Permittee)
Permit Number NCS000546
(Date)
Form SWU-247, last revised 212/2012
Page 5of 5