NC0007064_2016 Discharge Channel Tritium Summary_20170525

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Serial: BSEP 17-0050
Mr. Tom Belnick
Supervisor, Complex Permitting Unit
Division of Water Resources
NC Department of Environmental Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Brunswick Steam Electric Plant, Unit Nos. 1 and 2
2016 Discharge Channel Tritium Summary
Dear Mr. Belnick:
Brunswick Nuclear Plant
P.O. Box 10429
Southport, NC 28461
RECEIVEO NCDEWWR
MAY 2 5 2011
VVater Quality
Permitting Section
This letter fulfils the Brunswick Steam Electric Plant's (BSEP) agreement to provide your office
with summary information regarding concentrations of tritium in discharges from the plant.
Duke Energy Progress, LLC, is providing your office with a summary page containing analytical
data regarding tritium in conjunction with the development and submittal to the U.S. Nuclear
Regulatory Commission (NRC) of the BSEP's annual Radiological Environmental Operating
Report. This information is being provided with the understanding that it is generated pursuant
to the requirements of the nuclear operating licenses issued by the NRC to the plant and is not
a requirement of the NPDES program.
If there are any questions please contact Mr. Don Safrit, at [phone] or Mr. Marty
McGowan, at [phone].
Sincerely,
Karl Moser
Plant Manager
Brunswick Steam Electric Plant
Enclosure: 2016 BSEP Effluent Tritium Sampling and Data

2016 BSEP Effluent Tritium Sampling and Data
Monthly samples are collected upstream of the ocean discharge pumps which pump water from the
effluent channel into the Atlantic Ocean. The samples are collected over a month time period using a
composite sampler with, typically, 50 milliliter aliquots being collected every 4 hours. Five (5) of the
twelve samples from the effluent channel indicated the presence of tritium. The maximum tritium
concentration was 602 pCi/L, which was expected due to plant operations at the time of sampling.
21000
20000
19000
18000
17000
16000
15000
14000
13000
a, 12000
11000
10000
CL 9000
8000
7000
6000
5000
4000
3000
2000
1000
0
2016 BSEP Effluent Tritium Data
Sample Date
Tritium Concentration (pCi/L)
1/18/2016
<LLD
2/16/2016
602
3/16/2016
267
4/16/2016
<LLD
5/19/2016
<LLD
6/14/2016
<LLD
7/16/2016
323
8/17/2016
<LLD
9/14/2016
<LLD
10/17/2016
225
11/14/2016
197
12/15/2016
<LLD
LLD - Lower Limit of Detection
2016 BSEP Discharge Channel Tritium
—*—Discharge Channel f Water Quality Criterion
1/1 2/1 3/1 4/1 5/1 6/1 7/1 8/1 9/1 10/1 11/1 12/1
Date