NC0007064_Thermal Plume Report - Feb 2020_20200327

Action History (UTC-05:00) Eastern Time (US & Canada)
Subrrit by Anonymous User 3/27/2020 6:10:36 AM (Supplemental Submittal)
Submit by Thedford, Wren 5/12/2020 9:17:09 AM (Supplemental Info Submittal)
• Thedford, Wren assigned the task to Thedford, Wren 5/12/2020 9:16 AM
• The task was assigned to Thedford, Wren, Bennett, Bradley 3/27/2020 6:10 AM

Initial Review Information
Updated ID#:* IWORTANT:F;EVIBAERSl-IOLLDVERFYand revise here ifnecessary.
NC0007064
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Information Submitted on 3/27/2020
Submitter Information
Name: Marty McGowan
Vft is subrritting the infornation?
Email Address:* [e-mail]
Submittal Information
The Division of Water Resources (DWR) is providing this site to allow for the upload of required supplemental
information associated with discharge monitoring reports (DMR). All DMR data is required to be submitted
electronically through the eDMR system and should not be submitted here. Division staff will reviewall
uploaded documents and will only maintain required information. Documents such as laboratory reports are not required
to be submitted and will not be maintained in the system.
Project Information:
Rease SUDDly the Dernit nunber for this
Existing ID#* PerrritNunber
NC0007064
Exanples: NOKxxxxxx or NO&xxxxx
Facility Name:* Brunswick Steam Electric Plant
County: Brunswick
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February 2020 DMR Cover Letter.pdf 31.23KB
Thermal Plume Feb 2020 5 pages pdf.pdf 613.44KB
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Comments about the attachments:
Brunswick Steam Electric Plant, Unit Nos. 1 and 2
National Pollutant Discharge Elimination System
February 2020 Discharge Monitoring Report Semi -Annual Thermal Plume Monitoring Report
Permit No. NC0007064

* V By checking the box and signing box below, I certify that:
• I have given true, accurate, and complete information on this form;
• I agree that submission of this Supplemental Information form is a "transaction" subject to Chapter 66, Article 40 of the
NC General Statutes (the "Uniform Electronic Transactions Act)
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes
(the "Uniform Electronic Transactions Act');
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written
signature; AND
• I intend to electronically sign and submit the Supplemental Information form."
Full Name: Ray Martin McGowan
Signature:
Date Submitted: 03/27/2020

DUKE
� ENERGY,
OE&RC-3219 February 2020 eDMR File
Subject: Brunswick Steam Electric Plant, Unit Nos. 1 and 2
National Pollutant Discharge Elimination System
February 2020 Discharge Monitoring Report
Permit No. NCO007064
Brunswick Nuclear Plant
P O Box 10429
Southport, NC 28461
In accordance with 15A N.C. Administrative Code 2B.0506, enclosed is the February 2020
National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report for the
Brunswick Steam Electric Plant (BSEP), Unit Nos. 1 and 2, NPDES Permit
Number NC0007064. This report was submitted in the eDMR format in accordance with 40 CFR
127.11(a). Also enclosed is the Semi -Annual Thermal Plume Monitoring Report for BSEP, Units
1 and 2.
cl-
Marty McGowan
Environmental Field Support
Brunswick Steam Electric Plant

Brunswick Steam Electric Plant
Semi -Annual Thermal Plume Monitoring Report
Date: 2 18 2020
Wind Direction NNE Unit 1 Rx % Power 99.7
Wind Speed 4 Unit 2 Rx % Power 99.9
Air Temperature 64 Tide Stage Low -Rising
Station
Time
Surface Temp
Bottom Temp.
1
N/A
N/A
N/A
2
1322
55.8
55.9
3
1320
55.8
N/A
4
1318
55.9
N/A
5
1316
55.9
N/A
6
1314
55.9
N/A
7
1313
56.0
N/A
8
1311
56.0
N/A
9
1309
56.1
N/A
10
1308
56.2
N/A
11
1306
56.4
N/A
12
1302
56.5
55.8
13
N/A
N/A
N/A
14
1300
56.4
N/A
15
1356
56.2
N/A
16
1354
56.1
N/A
17
1353
56.1
N/A
18
1352
56.1
N/A
19
1350
56.2
N/A
20
1349
56.0
N/A
21
1347
56.0
N/A
22
1346
56.0
N/A
23
1344
55.9
N/A
24
1343
55.8
N/A
25
1415
55.9
N/A
26
1413
56.0
N/A
27
1411
58.9
N/A
28
1409
59.2
N/A
29
1408
59.5
N/A
30
1406
59.6
N/A
31
1404
59.1
N/A
32
1402
56.8
N/A
33
1400
56.9
N/A
34
1358
56.3
N/A
35
1258
56.2
N/A

Brunswick Steam Electric Plant
Semi -Annual Thermal Plume Monitoring Report
Date: 2 18 2020
Station
Time
Surface Temp
Bottom Temp.
36
N/A
N/A
N/A
37
1254
57.1
55.7
38
1252
57.1
N/A
39
1250
57.8
N/A
40
1249
60.1
N/A
41
1247
59.9
N/A
42
1245
56.1
N/A
43
1214
55.7
N/A
44
1212
55.7
N/A
45
1211
55.6
N/A
46
1209
55.6
N/A
47
1206
55.5
55.7
48
N/A
N/A
N/A
49
1239
N/A
56.8
50
1223
N/A
56.1
51
1234
N/A
56.4
52
1221
N/A
59.0
53
1242
N/A
56.0
54
1225
N/A
56.2
55
1231
N/A
56.1
56
1218
N/A
60.1
57
1244
56.6
N/A
58
1226
57.2
N/A
59
1 1229
1 62.1
N/A
60
1216
55.7
N/A
61
1237
68.5
56.7
Temperature Meter Serial Number: 4009314.0
Temperature Probe Serial Number: S1027300
Calibration Due Date: 8 22 2020
Note: All temperatures in degrees Fahrenheit

DATE:
2 18 2020
SURFACE ISOTHERMS
CASWELL BEACH
DISCHARGE PIPES -►
PUMPING STATION
Plume Temperature 68.5
57.1
57.1
57.8
60.1
59.9
56.1
55.7
55.7
55.6
55.6
55.5
56.2
56.3
56.9
56.8
59.1
59.6
59.5
59.2
58.9
56.0
55.9
56.4
56.2
56.1
56.1
56.1
56.2
56.0
56.0
56.0
55.9
55.8
56.5
56.4
56.2
56.1
56.0
56.0
55.9
55.9
55.9
55.8
55.8
1500,
TIDE STAGE: Low -Rising
AMBIENT TEMP: 56.2
Grid temps. in degrees Fahrenheit

DATE: 2/18/2020
SURFACE TEMPERATURE
DISCHARGE PIPES
(Not to scale)
57.2
TIDE STAGE:
AMBIENT TEMP:
Low -Rising
56.2
PUMPING STATION
56.6
68.5
1143 ft
T"
Discharge
62.1
CASWELL BEACH
55.7
►off
�•J
Note: The square represents - 120 acres.
Grid temps. in degrees Fahrenheit

DATE: 2/18/2020
BOTTOM TEMPERATURE
PUMPING STATION
DISCHARGE PIPES ilp
(Not to scale)
56.0
56.2
TIDE STAGE: Low -Rising
AMBIENT TEMP: 55.8
56.8
4 acres
56.1 56.7 59.0
1000 ft
Discharge
56.4
56.1
CASWELL BEACH
60.1
Note: The square represents - 120 acres.
Grid temps. in degrees Fahrenheit