NC0007064_Thermal Plume Report_20201124

Brunswick Steam Electric Plant
Semi -Annual Thermal Plume Monitoring Report
Date: 11/24/2020
Wind Direction NE Unit 1 Rx % Power
Wind Speed 7 Unit 2 Rx % Power
Air Temperature 52.9 ° F Tide Stage
99.9
96.7
Rising
Station
Time
Surface Temp
Bottom Temp.
1
N/A
N/A
N/A
2
1233
63.1
67.5
3
1228
62.8
N/A
4
1223
62.4
N/A
5
1218
62.3
N/A
6
1214
62.1
N/A
7
1211
62.1
N/A
8
1205
62.7
N/A
9
1201
63.1
N/A
10
1156
63.1
N/A
11
1151
63.2
N/A
12
1144
63.3
67.0
13
N/A
N/A
N/A
14
1141
62.7
N/A
15
1308
62.9
N/A
16
1305
62.8
N/A
17
1302
62.5
N/A
18
1259
62.4
N/A
19
1255
62.4
N/A
20
1252
61.9
N/A
21
1249
62.2
N/A
22
1245
62.3
N/A
23
1242
62.7
N/A
24
1239
62.3
N/A
25
1350
62.8
N/A
26
1347
62.8
N/A
27
1343
62.6
N/A
28
1340
62.6
N/A
29
1336
64.2
N/A
30
1332
65.5
N/A
31
1328
65.3
N/A
32
1324
65.7
N/A
33
1320
64.9
N/A
34
1315
64.6
N/A
35
0.1334
64.0
N/A

Brunswick Steam Electric Plant
Semi -Annual Thermal Plume Monitoring Report
Date: 11/24/2020
Station
Time
Surface Temp
Bottom Temp.
36
N/A
N/A
N/A
37
1126
64.8
67.1
38
1123
64.7
N/A
39
1120
64.3
N/A
40
1117
63.5
N/A
41
1114
63.4
N/A
42
1111
63.2
N/A
43
1006
63.0
N/A
44
1003
63.0
N/A
45
1000
62.8
N/A
46
957
62.3
N/A
47
953
63.0
66.0
48
N/A
N/A
N/A
49
1100
N/A
68.5
50
1024
N/A
67.6
51
1045
N/A
68.3
52
1019
N/A
71.0
53
1105
N/A
65.7
54
1027
N/A
67.0
55
1040
N/A
67.7
56
1015
N/A
70.2
57
1109
63.4
N/A
58
1030
63.4
N/A
59
1037
69.9
N/A
60
1013
63.3
N/A
61
1054
72.2
68.5
Temperature Meter Serial Number: 4013421.0
Temperature Probe Serial Number: CP259871
Calibration Due Date: 9/3/2021
Note: All temperatures in degrees Fahrenheit

DATE: 11/24/2020
SURFACE ISOTHERMS
CASWELL BEACH PUMPING STATION
DISCHARGE PIPES --►
Plume Temperature 72.2
64.8
64.7
64.3
63.5
63.4
63.2
63.0
63.0
62.8
62.3
63.0
64.0
64.6
64.9
65.7
65.3
65.5
64.2
62.6
62.6
62.8
62.8
62.7
62.9
62.8
62.5
62.4
62.4
61.9
62.2
62.3
62.7
62.3
63.3
63.2
63.1
63.1
62.7
62.1
62.1
62.3
62.4
62.8
63.1
< >
1500'
TIDE STAGE: Rising
AMBIENT TEMP : 63.6
Grid temps. in degrees Fahrenheit

DATE: 11/24/2020
SURFACE TEMPE j TURE
DISCHARGE PIPES
(Not to scale)
63.4
PUMPING STATION
CASWELL BEACH
63.4
72.2
1143 ft
Discharge
69.9
63.3
TIDE STAGE: Rising Note: The square represents — 120 acres.
AMBIENT TEMP : 63.6
Grid temps. in degrees Fahrenheit

DATE: 11/24/2020
BOTTOM TEMPERATURE
DISCHARGE PIPES
(Not to scale)
67.0
PUMPING STATION
65.7
67.7
CASWELL BEACH
70.2
TIDE STAGE: Rising Note: The square represents - 120 acres.
AMBIENT TEMP : 66.9
Grid temps. in degrees Fahrenheit