NCS000548 DMR SW (2)

STORMWATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000548
FACILITY NAME Marshall Steam Station
PERSON COLLECTING SAMPLE(S) Staff
CERTIFIED LABORATORY(S) Duke Energy of the Carolinas, LLC Lab #248
Part A: Specific Monitoring Requirements
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.)
COUNTY Catawba
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Outfall Date
No. Sample
Collected
50050'
01042
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)
mo/dd/ r
MG
inches'
SU
m L
m
m L
in /L
m /L
SW001/SWOO1A 12/14/2015
N/A
10.1
17.00
<0.0003
0.00236
<0.05
<0.001
<0.001
Outfall Date
No. 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 Pb)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As Tl)
Zinc,, Total '
(as Zn)
mo/dd/ r
m
m
m
m
m
m /L
m
m
SWOOUSWO01A 12/14/2015
0.0091
0.00355
0.00151
0.00144
<0.001
<0.001
<0.0002
0.042
Outfall Date
No. " Sample
Collected
71900
CO530
Mercury,
Total, Method
1631E
Solids, Total
Suspended-'
Concentration
mo/dd/ r
n
m
SW001/SW001A 12/14/2015 16.51
125
m
Outfall Date
No. Sample
Collected
00400
CO530
Total
Rainfall
pH'
Solids, Total
Suspended -
Concentration
mo/dd/ r ­
inches
SU 1
m
SW006 12/14/2015
10.1 17.6
<5
Permit Number NCS000548
Form SWU-247, last revised 21212012
Page 1 of 4

Outfall Date
No. Sample
Collected
50050
01042
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)
mo/dd/ r
MG
inches
SU
m
mg/L
m
m
m
SW007 12/14/2015
N/A
0.1
19.35
1 <0.0003
10.00145
1 <0.05
<0.001
<0.001
Outfall Date
No. 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 Pb)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As Tl)
Zinc, Total
(as Zn)
mo/dd/yr
mg/L
mg/L
mg/L
mg/L
m
mg/L
mg/L
mg/L
SW007 12/14/2015
0.00336
0.00584
0.00322
0.00196
<0.001
0.00124
1 <0.0002
0.173
Outfall Date
No. Sample
Collected
71900
CO530
34671
39488
39492
39496
39500
39504
39508
00556
Mercury,
Total, Method
1631E
Solids, Total
Suspended-
Concentration
PCB -1016
(Arochlor
1016)
PCB -1221
(Arochlor
1221)
PCB -1232
(Arochlor
1232)
PCB -1242
(Arochlor
1242)
PCB -1248
(Arochlor
1248)
PCB -1254
(Arochlor
1254)
PCB -1260
(Arochlor
1260)
Oil &
Grease
mo/dd/ r
n
In
ItgIL
Ag/L
mg/L
/L
AgIL
Pg/L
SWO11
m
SW007 12/14/2015
8.385
54
<0.4
<0.4
<0.4
<0.4
<0.4
<0.4
<0.4
<4 Flag A
Outfall Date
No. Sample
Collected
Date
00400
CO530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/ r
inches
SU
m
SW008 12/14/2015
10.1
9.36
1380
Outfall Date
Date
00400
CO530
34671
39488
39492
39496
39500
39504
39508
No. Sample
Collected
Total
Rainfall
pH
Solids, Total
Suspended-
Concentration
PCB -1016
(Arochlor
1016)
PCB -1221
(Arochlor
1221)
PCB -1232
(Arochlor
1232)
PCB -1242
(Arochlor
1242)
PCB -1248
(Arochlor
1248)
PCB -1254
(Arochlor
1254)
PCB -1260
(Arochlor
1260)
mo/dd/yr
inches
SU
m
mg/L
/L
MWL
mWL
SWO11
/L
N/A
SW009 12/14/2015
0.1
7.30
13
<0.4
<0.4
<0.4
<0.4
<0.4
<0.4
<0.4
Outfall
Date
50050
00400
01034
01027
01051
01092
CO530
No.
Sample
Collected
Total
Flow (if app.)
Total
Rainfall
pH
Chromium,
Total (as
Cr)
Cadmium,
Total (as
Cd)
Lead, Total
(as Pb)
Zinc, Total
(as Zn)
Solids, Total
Suspended -
Concentration
mo/dd/ r
MG
inches
m
mg/L
mg/L
MWL
mWL
SWO11
12/17/2015
N/A
11.12
6.89
<0.001
<0.001
<0.001
0.0422
10
Permit Number NCS000548 Form SWU-247, last revised 2/212012
Page 2of 4

Outfall Date
No. Sample
Collected
50050
00400
C0530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/yr
inches
SU
m
SWO12 12/14/2015
10.1
18.33
1330
Outfall Date
No. Sample
Collected
50050
00400
C0530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/ r
inches
SU
m
SWO22 12/14/2015
0.1
9.45
160
Exceedances include pH at SW007, Zinc (Zn) at SW007, pH at SW008, TSS at SW008, TSS at SW012, and TSS at SW022.
Flag A: Oil and Grease was collected in an unpreserved bottle and preserved later the same day prior to analysis.
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 linches
m /l
mgn
unit
al/mo
Permit Number NCS000548 Form SWU-247, last revised 21212012
Page 3of 4

STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date 12/14/2015 Attn: Central Files
Total Event Precipitation (inches): 0_1 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 12/17/2015
Total Event Precipitation (inches): 1.12
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 NCS000548
1l"G
(Date)
Form SWU-247, last revised 2/212012
Page 4of 4