NCS000548_MONITORING INFO_20191220

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
IV voo " 11
DOC TYPE
❑FINAL PERMIT
(MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑ �V I C� I � di)
YYYYMMDD

(� DUKE
ENERGY.
December 18, 2019
NC Dept. of Environmental Quality
Attention: Central Files
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Pz-C'EIVED
DEC 2 0 2019
till-)
DUKE ENERGY CORPORATION
Marsha!! Steam Station
8320 East NC Highway 150
Terre!!, NC 28682
Subject: Duke Energy Carolinas, LLC
NPDES Stormwater Discharge Monitoring Report for:
Marshall Steam Station - NCS000548 - Catawba County
Year 5 - Tier II Monthly Sampling Results
Dear Sir or Madam:
In accordance with Part III, E(2) of the above referenced NPDES Stormwater permit, the original
and one copy of the Stormwater Discharge Outfall (SDO) monitoring reports containing results of
the Tier II monthly sampling is attached.
Representative samples were not collected from SWO07 or SW008 during November 2019
because of NO FLOW conditions at the facility, including stormwater events not initiating during
daylight hours or stormwater events that did initiate on weekend days or inside 72-hour period
since the last stormwater event. Therefore, this report is submitted as a formal notification of the
NO FLOW conditions at the site for November 2019.
Currently SWO07 remains in Tier 2 status for two consecutive values for copper outside the permit
benchmark range. Additionally, SWO08 remains in Tier 3 status for four intermittent TSS values
reported outside the benchmark range within the permit cycle.
Please direct any correspondence or questions concerning the Marshall Steam Station NPDES
Stormwater Program to Robert Wylie at [phone].
Sincerely,
Rick R. Roper
General Manager III
Marshall Steam Station
attachment
www.duke-energy.corn

DUKE ENERGY CORPORATION
Marshall Steam Station
8320 East NC Highway 150
Terrell, NC 28682
be w/attachment: Scott to Sala
Robert Wylie
File: CCP EHS
UPS Tracking Number 1Z8955X40396375794 Raleigh Central Office
www.duke-energy.corn

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 Carolina_ LLC Lab #248
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.)
Outfall
No.
Date
Sample
Collected
00400
C0530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/vr
inches
m L
SVI'007
NO FLOW
-
---
---
Outfall
No.
Date
Sample
Collected
00400
C0530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/ •r
inches
m L
SW008
NO FLOW
---
---
- -
COUNTY Catawba
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REOUIRED ON PAGE 2.
Samples were not collected from stormwater outfall SWO07 and SWO08 during November 2019 as a result to NO FLOW conditions.
Form SWU-247. last revised 21212012
Page I of 2

STORMWATER DISCHARGE OUTFALL (SDO)
,MONITORING REPORT
Does this facility perform Vehicle Maintenance Activities using more than SS 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
(10400
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: Mail Original and one copy to:
Division of Water Quality
Date NO FLOW Attn: Central Files
Total Event Precipitation (inches): NA 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
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."
C B
(Date
Form SWU-247. fast revised 21212012
Page 2 of 2

STORMAVATER DISCHARGE OUTFALL (SDO)
MONITORING REPORT
Permit Number NCS000548
FACILITY NAME iNlarshall Steam Station
PERSON COLLECTING SAiMPLF.(S) Staff
CERTIFIED LABORATORY(S) Duke Energy of the Carolinas, LLC Lab #248
Part A: Specific iN7onitoring 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_)
Outfall
No.
Date
Sample
Collected
00400
C0530
Total
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/ddlyr
inches
m L
SW007
NO FLOW
---
---
--
Outfall
No.
Date
Sample
Collected
00400
C0530
Total-
Rainfall
pH
Solids, Total
Suspended -
Concentration
mo/dd/vr
inches
m g/L
SW008
NO FLOW
I---
---
---
COUNTY Catawba
PHONE NO. [phone]
SIGNATURE OF PERMITTEE OR DESIGNEE
REQUIRED ON PAGE 2.
Samples were not collected from stormwater outfall SWO07 and SW008 during November 2019 as a result to NO FLOW conditions.
Form SWU-247. last revised 2/2/?012
Page I of 2

STORNIWATER DISCHARGE OUTFALL (SDO)
;•MONITORING REPORT
Does this facility Perform Vehicle Maintenance Activities using more than 55 oallons of new motor oil per month? _ yes X no
(ii'ves, 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
(141ethod 1664
Solids
SGT-HEM), if
appl.
mo/dd/vr
MG
inches
m
m
unit
gaUmo
STORM EVENT CHARACTERISTICS: Mail Original and one copy to:
Division of Water Quality
Date NO FLOW Attn: Central Files
Total Event Precipitation (inches): NA 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
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."
l B
(Date)
Form SWU-247, last revised 2!2l_012
Page 2 of 2

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