NCS000578_MONITORING INFO_20190705

M'ZD
STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
/V( S 00
DOC TYPE
❑FINAL PERMIT
MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
�� I� � ��
DOC DATE
❑
YYYYMMDD

('DUKE
? ENERGY
July 1, 2019
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:
Buck Steam Station — NCS000578 — Rowan County
'JUL 05 201�
CENTiV\L FILES
DWR SECTION
Duke Energy
Buck Combined Cycle
1385 Dukeville Road
Salisbury, NC 26146
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 period -for sampling
ended June 30, 2019.
Enclosed is the DMR for outfalis SW001, SW002, SW003, SW048, SW056, SW073, SW075,
SW077, SW078, SW079, SW080 and SW081. There were no samples collected from these
outfalls and are listed as "No Flow" for the sampling period. This was due to either nighttime
rainfall events, inclement weather or lack of qualifying rainfall events.
Please direct any correspondence or questions concerning the Buck Steam Station NPDES
Storm Water Program to Elizabeth Glenn at [phone] or Dale Wooten at [phone].
Yours truly,
Kristopher C Eisenrieth
General Manager
Buck Combined Cycle
Attachments
bc: w/attachment ' Elizabeth Glenn
Mailed by USPS: 7018 0680 0001 8853 7396
Return Receipt USPS: 9590 9402 3857 8060 1482 97

STORMWATER DISCHARGE OUTFALL (SDO)
NIONITORING REPORT
Permit Number NCS000578
FACILITY NAME Buck Steam Station
PERSON COLLECTING SAMPLE(S) NA
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: 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 Rowan
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 4.
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)
mo/ddl r
MG
inches
m L
m L
m L
mg
m L
SW001
NIA
NIA
NO QUALIFYING
FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO02
N/A
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO03
NIA
N/A
NO QUALIFYING FLOW FOR Tnis OUTFALL FOR THE MONTH OF JUNE 2019
SWO48
NIA
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SW056
N/A
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SW073
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW075
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SVV077
NIA
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW078
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SNV079
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW080
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SWO81
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
Outfall
Date
01034
01042 01067
01051
01097
01147
01059
01092
No.
Sample
Collected
Chromium,
Total (as Cr)
Copper, Total Nickel, Total
(as Cu) (as NO
Lead, Total
(as Pb)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As TI)
Zinc, Total (as
Zn)
mo/dd/ r
m
m L m L
mg1L
m L
mg1L
m L
m L
SWO01
NIA
NO QUALIFYING
FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO02
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO03
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW048
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SN1056
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
- Permit Numher NCS000578 Form SWU-247. last revised 222012
Page I of 4

Outfall
Date
01034
01042
01067
01051
01097
01147
01059
01092
No.
Sample
Collected
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 TI)
Zinc,. Total (as
Zn)
mo/dd/ r
m L
m L
m L
m L
mgjL
m L
m L
m L
SW073
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW075
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO77
NIA
NO QUALIFYING. FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW078
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE 17ONTH OF JUNE 2019
SW079
NIA
NO 2UALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO80
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SWO81
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
Outfall
Date
71900
C0530
00556
Mercury, Total,
Solids, Total
Oil &Grease
No.
Sample
Collected
Method 1631 E
Suspended -
Concentration
mo/ddl r
n
m L
m L
SW001
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SWO02
NIA
NO QUALIFYING. FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW003
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW048
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE FIRST HALF OF 2019
SW056
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE FIRST HALF OF 2019
SWO73
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW075
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW077
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW078
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW079
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF JUNE 2019
SW080
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE FIRST HALF OF 2019
SW081
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE FIRST HALF OF 2019
Permit Number NCS000578
Form SWU-247, last revised 2122012
Page 2 of' 4

Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/ yr
u L
u L
u L
ugLL
ug&
UgZL
ugIL
SW001
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO02
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO03
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SW048
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SWO56
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SW078
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE ,MONTH OF JUNE 2019
SW079
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF JUNE 2019
SWO80
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 2019
SWO81
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE FIRST HALF OF 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 R)
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
MG
inches
m
m
unit
gaumo
STORM EVENT CHARACTERISTICS:
Date NA
Total Event Precipitation (inches): NA
Event Duration (hours): (only if applicable — see permit.)
(il' more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours): (only if applicable — sec pert -nil,)
Mail Original and one copy to:
Division of Water Quality
Attn: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
permit Number NCS000578
Form SWU-247, last revised 222012
Page 3 of 4

"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."
ture of Permittee)
-7 { f
(Date
Permit Number NCS000578
Form SWU-247, last revised 21212012
Page 4 of 4

C4�DUKE
ENERGY,
June 5, 2019
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:
Buck Steam Station — NCS000578 — Rowan County
Duke Energy
Buck Combined Cycle
1385 Dukeville Roar!
Salisbury, NC 28146
1-CEIVED
JON ] 2 201g
CENTRAL FILLS
OVVR SECTIaN1
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 period for sampling
ended May 31, 2019.
Enclosed is the DMR for outfalls SW001, SW002, SW003, SW073, SW075, SW077, SW078
and SW079. There were no samples collected from these outfalls and are listed as "No Flow"
for the sampling period. This was due to either nighttime rainfall events, inclement weather or
lack of qualifying rainfall events.
Please direct any correspondence or questions concerning the Buck Steam Station NPDES
Storm Water Program to Dale Wooten at [phone] or Elizabeth Glenn at [phone].
Yours truly,
Kristopher C Eisenrieth, General Manager II
Buck Combined Cycle
Attachments
bc: wlattachment Elizabeth Glenn
Mailed by USPS: 7018 0680 0001 8853 7341
Return Receipt USPS: 9590 9402 3857 8060 1483 34

STORM WATER DISCHARGE OUTFALL (SDO)
NIONITORING REPORT
Permit Number NCS000578
FACILITY NANIE Buck Steam Station
PERSON COLLECTING SAMPLE(S) NA
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: 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.)
COUNTY Rowan
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESICNEE
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)
mo/dd/ r
MG
inches
m L
m L
m L
m L
m L
SW001
NIA
NIA
NO QUALIFYING
FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SWO02
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SWO03
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW073
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW075
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW077
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW078
NIA
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW079
N/A
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL 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 Pb)
Antimony,
Total (as Sb)
Selenium,
Total (as Se)
Thallium,
Total (As Tl)
Zinc, Total (as
Zn)
mo/dd/yr
mgfL
m L
m L
mgfL
m
m L
m
m L
SW001
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 20t9
SW002
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW003
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW073
N/A
NOQUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW075
N/A
NO!QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW'077
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW078
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE NIONTH OF MAY 2019
SW079
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
Permit Number NCS000578 Form SWU-247, last rei°ised 222012
Page I of' 3

Outfall
Date
71900
C0530
00556
No.
Sample
Mercury, Total,
Solids, Total
Oil & Grease
Collected
Method 1631E
Suspended -
Concentration
mo/dd/ •r
ngfL
m L
m L
SWO01
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF MAY 2019
SWO02
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE NIONTH OF i11AY 2019
SWO03
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF MAY 2019
SW073
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF NIAY 2019
SW075
NIA
NO QUALIFYING FLOW FORTH IS OUTFALL
FOR THE \90NTH OF MAY 2019
SW077
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF MAY 2019
SW078
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF MAY 2019
SW079
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF MAY 2019
Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/ddlyr
u
u
u L
u L
u
u L
u L
SW001
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SWO02
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SWO03
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SW078
N/A
NO qUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
SNi'079
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF MAY 2019
Does this facility Perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?ryes X no
(ifyes, complete Part B)
Permit Number NCS000578 Form SWU-247, lust revised 21212012
Page 2 of 3

Part B: Vehicle Maintenance Activit y MonitoringRe uirements
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-HEAT), if
appl.
moldd/ r
NIG
inches
m
MO
unit
al/mo
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date NA Attn: Central Files
Total Event Precipitation (inches): NA 1617 Mail Service Center
Event Duration (hours): (only if applicable — sce 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,
mding the possibility of lines and imprisonment for knowing violations."
cl "
*�� -, &
(S' nature of Permittee) (Date)
Permit Number NCS000578 Form SWU-247. last revised 2/2/2012
Page 3 of 3

`4m� DUKE
ENERGYe
May 22, 2019
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:
Buck Steam Station — NCS000578 — Rowan County
Duke Energy
Buck Combined Cycle
1385 Dukeville Road
Salisbury, NC 28146
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 April 30, 2019.
Samples were collected from outfalls on April 5, April 12 and April 19, 2019. Samples for the
following outfalls were collected: SWO01, SW002, SW003, SW073, SW075, SW077 and
SW079. The laboratory results were received on May 7, 2019. Analytes sampled above the
benchmark values for analytical monitoring are as follows.
Parameter
Benchmark
SWO01
SWO02
SWO03
SW073
SW075
SW077
SW079
Cu
10 ug/L
16.6 ug/L
76.7 ug/L16.2
ug/L98.5
ug/L
11.0 ug/L
56.2 ug/L
Zn
126 ug/L
304 ug/L
438 ug/L
230 ug/L
147 ug/L
237 ug/L
TSS
100 mg/L
490 mg/
370 mg/L
1300
mg/L
190 mg/
** Hg
12.0 ng/L
22.3 ng/L1
454 ng/L
103 ng/L
147 ng/L
14.3 ng/
46.2 ng/L
** Hg is not a benchmark exceedance; however, North Carolina requires values above 12 ng/L to
be documented on the DMR.
SWO01 entered Tier three status because of the Zinc exceedance. 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 Buck Steam Station NPDES
Storm Water Program to Elizabeth Glenn at [phone] or Dale Wooten at [phone].
Yours trgly,
Henry A. Botkins, Jr., General Ma ager II
Buck Combined Cycle
7015 3430 0000 4523 5893 — Mailed by USPS to Raleigh
9590 9402 3857 8060 1484 33 — Return USPS receipt from Raleigh
MAY 2 S 2fl19
GE�;Tti �� TtON
17V'lft �:.0

STORMWATER DISCHARGE OUTFALL (SDO)
,MONITORING REPORT
Permit Number NCS000578 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 NA,NIE Buck Steam Station
PERSON COLLECTING SAMPLE(S) Myron Amick/Sally Nlodad/Peter Dav/Dan Diffenbach
CERTIFIED LABORATORY(S) Duke Energy of the Carolinas, LLC Lab #248
Shealy Environmental Services, NC Lab #329
Part A: Specific Monitoring Requirements
COUNTY Rowan
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)
mo/ddl r
MG
inches
m L
m L
m L
m L
m L
SW001
4/12/19
NIA
0.52
6.9
SWO02
4/5/19
N/A
0.98
7.7
SWO03
4/5/19
N/A
0.98
18.2
8.1
SW073
4/12/19
N/A
0.52
7.1
<0.0002
0.00261
<0.05
<0.001
<0.001
SW075
4/12/19
N/A
0.52
7.8
<0.0002
0.00224
<0.05
<0.001
<0.001
SW077
4/19/l9
NIA
0.11
<0.0002
0.00195
0.054
<0.001
<0.001
SW078
N/A
NIA
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE
MONTH OF APRIL
2019
SW079
4/5119
N/A
0.9$ 17.6
Outfall
Date
01034
01042
01067
01051
01097
01147
01059
01092
No.
Sample
Collected
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 TI)
"Zinc, Total (as
Zn)
mo/dd/ yr
m 1,
m L
m L
m L
m L
mgtL
m L
m L
Swoo 1
4/12/19
0.0166
0.00135
0.304
SWO02
4/5/19
0.00945
0.00204
0.438
SWO03
4/5/19
0.0767
0.00413
0.230
SW073
4/12/19
0.00967
0.0162
0.00534
0.00765
<0.001
<0.001
0.000214
0.043
SW075
4/12/19
0.0421
0.0985
0.0230
0.0323
<0.001
<0.001
0.000369
0.147
SW077
4/19/19
0.0216
0.0110
0.00410
0.00129
<0.001
0.00746
<0.0002
0.033
SW078
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF APRIL
2019
SIV079
415/19
10.0562
0.00409 10.237
Permit Number NCS000578 Form SWU-247, last revised 2122012
Page l ol' 3

Outfall
No.
Date
Sample
Collected
71900
CO530
00556
Mercury, Total,
Method 1631E
Solids, Total
Suspended -
Concentration
Oil & Grease
mo/dd/ r
n L
mgjL
m L
SW001
4/12/19
22.3
77
<5.0
SW002
4/5/19
3.41 Avg
9.2
<5.0
S W 003
4/5/19
454
490
<5.0
SW073
4/12/19
103
370
SW075
4/12/19
148 Avg
1300
SW077
4/19/19
13.7 Avg
5.8
SW078
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL
FOR THE MONTH OF APRIL 2019
SW079
4/5/19
46.2 1190 1 <5.1
Outfall
No.
Date
Sample
Collected
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
mo/dd/ r
u L
u
u L
u
u
u L
u
SWOU1
4/12/19
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
SWO02
4/5/19
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
SW003
415/19
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
SW078
N/A
NO QUALIFYING FLOW FOR THIS OUTFALL FOR THE MONTH OF APRIL 2019
SW079
4/5/19
<0.40 1 <0.40 1 <0.40 1 <0.40 1 <0.40 1 <0.40 <0.40
Benchmark exceedances include Copper at SW001, SWO03, SW073, SW075, SW077 and SW079; "Zinc at SWO01, SW002. SWO03, SW075 and SW079; TSS at SW003, SW073,
SW075,. SW077 and SW079.
Avg - Average of primary and duplicate mercury samples for 4/5/19 (2.77 ngL and 4.05 n,,/L = 3.41 ng/L);
Average of primary and duplicate mercury samples for 4/12/19 (147 ng/L and 149 ng/L = 148 ng/L).
Average of primary and duplicate mercury samples for 4/19/19 (14.3 ng/L and 13.0 ng/L = 13.7 ng/L).
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
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
MG
inches
m
m
unit
al/mo
Permit Number NCS000578 Form SWU-247, last revised 21212012
Page 2 of 3

STORM EVENT CHARACTERISTICS: i fail Original and one copy to:
Division of Water Quality
Date 4/5/19 Attn: Central Files
Total Event Precipitation (inches): 0.98 1617 Mail Service Center
Event Duration (hours): (only if applicable -- see permit.) Raleigh, North Carolina 27699-1617
(if more than one storm went was sampled)
Date 4/12/19
Total Event Precipitation (inches): 0.52
Event Duration (hours): (only if applicable —see permit.)
Date 4/19/19
Total Event Precipitation (inches): 0. 11
Event Duration (hours): (only if applicable — see permit.)
"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
hest of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
includingthe possibility of fi �nd '; prisonment for knowing violations."
(Signature of Permittee) (Date)
Permit Number NCS000578 Form SWU-247, lust reviser! 21212012
Page 3 of 3