NC0004987_Report Submittal Permit Condition Part I, A.(30)_20170321

March 21, 2017
Duke Energy
Marshall Steam Station
8329 East NC Hwy 150
Terrell, NC 28682
821,,.-478-7700
Mr. Jeffrey O. Poupart
NC DEQ — DWR
1617 Mail Service Center MAR 2 8 20 i?
Raleigh, North Carolina 27699-1617 WaterQuality
Subject: Seep Pollutant Analysis -
idol?
Report submittal in accordance with Permit Condition Part I, A.(30)
Marshall Steam Station - "DES Permit NC0004987 - Catawba County
Dear Mr. Poupart:
Pursuant to Part 1, Condition A.(30) of the above -referenced permit, Duke Energy is required to
demonstrate that the water quality standards for constituents listed in permit condition A.(29) are not
contravened in the receiving stream. This demonstration is required to be completed within 180 days of the
effective date of the subject permit using in -stream sampling results at stations established through the BIP
monitoring program. This submittal fulfills the requirement found in that permit condition.
Two seeps at Marshall Steam Station are permitted as Outfall 101 & Outfall 102. Both of these outfalls are
permitted as effluent channels to Lake Norman. A summary of sampling results within the receiving water
body (Lake Norman) obtained from established BIP monitoring stations in February 2016, August 2016 and
February 2017, is provided as an attachment to this submittal. These results confirm that Outfall 101 and
Outfall 102 do not cause any contravention of water quality standards for constituents listed in condition
A.(29).
If you have any questions, please contact Brad Loveland at [e-mail] or
704-609-5637.
'7 certify, utnder penalty of Latin, 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 nn), 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. "
Sincerely,
R41
ick R. Roper
General Manager III
Marshall Steam Station
Attachment
www.duke-energy.com

Duke Energy
Marshall Steam Station
8329 East NC Hwy 150
Terrell, NC 28682
828-478-7700
Cc: Sergei Chernikov (NCDEQ)
1617 Mail Services Center
Raleigh, NC 27699-1617
Cc: Wes Bell -NC DWR MRO
610 East Center Ave Suite 301
Mooresville, NC 28115
Xc: Richard Baker (Duke Energy)
Brad Loveland (Duke Energy)
Scott La Sala (Duke Energy)
Shannon Langley (Duke Energy) - NC 15
Filenet
UPS Tracking: Mr. Jeffrey Poupart (NCDEQ-DWR) - 1Z8955X40398018112
Mr. Sergei Chernikov (NCDEQ-Permitting) - 1Z8955X40396580722
Mr. Wes Bell (MRO) - 1Z8955X40396536333
www.duke-energy.com

Marshall SS
Marshall SS
Marshall 55
Marshall SS
notes:
mg/L- milligrams per liter (parts per million)
ug/L: micrograms per liter (parts per billion)
ng/L- nanograms per liter (parts pertrillion)
Id/A - no applicable 2B Standard for analyzed constituent
ATTACHMENT 1
INSTREAM MONITORING RESULTS
MARSHALL STEAM STATION - NPDES Permit: NC0004897
Condition A.(30) compliance demonstration
MARCH 21, 2017
7.0 0.02
7.1 0.02
<1
<1
<1
<1
<1
<1
2.9
4.1
3V7<
6.8 0.04
1.4
<1
<0.1
4.2
6.5 0.03
<1
<1
<0.1
1.7
g4.7
0.02
7.2 002
<1
<1
<1
<1
<0.1
<0.1
3.2
4.7
5
page 1 of 1
<1
1.87
<1
<1
<5
<25
13
0.013
i.52
0.87
<1
<1
<5
<25
17
0.051
<1
3.70
<1
Q
<5
54
18
0.027
..43
<0.5
<1
<1
<5
42
20
0.057
<1
0.83
<1
<1
<5
57
16
0.017
..50
0.77
<1
<1
<5
64
21
0.059
created by: BPL
www.duke-energy.com