Updated BTVs Attachments 10-17-19

Allen Steam Station - Groundwater Background Threshold Values
Parameter
Reporting
Units
Calculated Background Threshold
Values
15A NCAC
02L Standard
or IMAC
Site -Specific Groundwater Quality Standards
Applicable to Corrective Action per 15A NCAC
02L .0202(b)(3), .0202(c), or .0202(h)
Flow Unit
Flow Unit
Shallow
Deep
Bedrock
Shallow
Deep
Bedrock
H
S.U.
4.5-7.8
6.1-8.5
6.6-9.0
6.5-8.5
4.5-8.5
6.1-8.5
6.6-9.0
Alkalinity
1.
105
134
138
1 NE
105
134
138
Aluminum
876.7
525
474.6
NE
876.7
525
474.6
Antimony
µgfL
1
1
2.6
1
1
1
2.6
Arsenic
110L
1
1
1.6
10
10
10
10
Barium
µg/L
87
103
20.68
700
700
700
700
Beryllium
P ya
0.1
1
0.1
4
4
4
4
Bicarbonate
m
106
125
136
NE
106
125
136
Boron
40.
50
50
50
700
700
700
700
Cadmium
µg/L
0.08
1
0.08
2
2
2
2
Calcium
L
21
30.9
26.3
NE
21
30.9
26.3
Carbonate
L
5
5
5
NE
5
5
5
Chloride
/L
10.5
5
9.1
250
250
250
250
Chromium
µ�L
9
10.8
5.59
10
10.8
10
Chromium (VI)
2
2
0.53
-!LM
NA* -
10*
10*
10*
Cobalt
µg/L
6
0.8
0.27
1
6
1
1
Copper
i 'L
3
2
1.7
1,000
1,000
1,000
1,000
Fluoride
0.1
0.12
0.11
2
2
2
2
Iron
41,
1,390.5
613
558.2
300
1,390.5
613
558.2
Lead
µg/L
1
0.2
0.17
15
15
15
15
Lithium
t
2.02
25
26.3
NE
2.02
25
26.3
Magnesium
/1.
6
7
8.28
NE
6
7
8.28
Manganese
L
470
233
198.2
50
470
233
198.2
Mercury
0.2
0.2
0.2
1
1
1
1
Methane
'L
15
10
10
NE
15
10
10
Molybdenum
AWL
6.7
26.6
9.04
NE
6.7
26.6
9.04
Nickel
9
8.1
3.96
100
100
100
100
Nitrate + Nitrite
-N/L
3
3
1.65
ll**
11**
11**
ll**
Potassium
mg/L
5
12.4
17.6
NE
5
12.4
17.6
Selenium
AWL
0.5
0.8
0.5
20
20
20
20
Sodium
; L
21
22.3
15.3
NE
21
22.3
15.3
Strontium
L
300
240
181
NE
300
240
181
Sulfate
L
5
15
7.3
250
250
250
250
Sulfide
0.1
0.1
0.1
NE
0.1
0.1
0.1
TDS
mg/L
154
173
194.1
500
500
500
500
Thallium
0.1
0.1
0.1
0.2
0.2
0.2
0.2
TOC
m (L
9.1
6.9
1.1
NE
9.1
6.9
1.1
Vanadium
µg/L
4
16
12.59
0.3
4
16
12.59
Zinc
45
15 ,
10
1,000
1,000
1,000
1,000
Radium Total
i/L
2
2
1.26
NE
2
2
1.26
Uranium S Total)
/mL
0.0005
0.0005
0.00081
NE
0.0005
0.0005
0.00081
IMAC - Interim Maximum Allowable Concentration
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
TDS - Total Dissolved Solids
µg/L - micrograms per liter
µg/mL - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
*The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
"The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of 11 mg/L)
Attachment 1 of 7 October 17, 2019 Letter

Belews Creek Steam Station - Groundwater Background Threshold Values 1
Parameter
Reporting
Units
Calculated Background Threshold Values*
15A NCAC 02L
Standard or
IMAC
Site -Specific Groundwater Quality Standards
Applicable to Corrective Action per 15A NCAC
02L .0202 (b)(3), .0202(c), or .0202(h)
Flow Unit
Flow Unit
Shallow
Deep
Bedrock
Shallow
Dee
Bedrock
13
S.U.
5.2-6.0
5.6-7.0
6.2-8.4
6.5-8.5
5.2-8.5
5.6-8.5
6.2-8.5
Alkalinity
L
20
53
91
NE
20
53
91
Aluminum
P91L
615
155
100
NE
615
155
100
Antimony
1
1
1
1
1
1
1
Arsenic
1
1
2
10
10
10
10
Barium
pgiL
123
16
11
700
700
700
700
Beryllium
µg/L
1
0.1
0.2
4
4
4
4
Bicarbonate
/L
24
54
91
NE
24
54
91
Boron
50
50
50
700
700
700
700
Cadmium
t 'L
1
0.08
0.08
?
2
2
2
Calcium
mg/L
8
14
26
NE
8
14
26
Carbonate
mg/L
5
5
5
NE
5
5
5
Chloride
mg/L
19
19
3
250
250
250
250
Chromium
t
11.3
3
7.89
10
11.3
10
10
Chromium (VI)
µg/L
2.6
0.51
0.31
NA*
10*
10*
10*
Cobalt
8j2L
1.1
1.7
0.8
1
1.1
1.7
1
Copper
µg/L
2
5
17
1,000
1,000
1,000
1,000
Fluoride
0.1
0.1
0.6
2
2
2
2
Iron
1280
226
215
300
1280
300
300
Lead
ry../L
1
0.6
0.2
15
15
15
15
Lithium
2
95
30
NE
2
95
30
Magnesium
4
7
4
NE
4
7
4
Manganese
30.6
98
64.3
50
50
98
64.3
Mercuw
0.2
0.2
0.2
1
1
1
1
Methane
3
10
10
NE
3
10
10
Molybdenum
L
1
1.1
3.47
NE
1
1.1
3.47
Nickel
µg/L
8
5
7
100
100
100
100
Nitrate + Nitrite
mg/L
3
4
0.2
11**
11**
11**
11**
Potassium
mg/L
5
19
5
NE
5
19
5
Selenium
1
0.5
0.5
20
20
20
20
Sodium
m
7
11
15
NE
7
11
15
Strontium
46.6
79.7
98.5
NE
46.6
79.7
98.5
Sulfate
mg/L
2.3
8
15
250
250
250
250
Sulfide
mgfL
0.1
0.1
0.1
NE
0.1
0.1
0.1
TDS
11191L
93
134
181
500
500
500
500
Thallium
0.2
0.1
0.1 1
0.2
0.2
0.2
0.2
TOC
mg/L
3
6
4
NE
3
6
4
Vanadium
1.316
1.45
0.875
0.3
1.316
1.45
0.875
Zinc
39
23
41
1,000
1,000
1000
1,000
Radium (Total)
i/L
1.707
4
4
NE
1.707
4
4
Uranium ( Total)
L
0.0005
0.0005
0.002
NE
0.0005
0.0005
0.002
IMAC - Interim Maximum Allowable Concentration
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
IDS - Total Dissolved Solids
µg/L - micrograms per liter
µg/mL - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
**The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of 11 mg/L)
Attachment 2 of 7 October 17, 2019 Letter

James E. Rogers Energy Complex - Groundwater Background Threshold Values
Parameter
Reporting
Units
Calculated Background Threshold
Values
Flow Unit
15A NCAC 02L
Standard or
IMAC
Site -Specific Groundwater Quality Standards
Applicable to Corrective Action per 15A NCAC
02L .0202(b)(3), .0202(c), or .0202(h)
Flow Unit
Shallow
Deep
Bedrock
Shallow
Deep
Bedrock
Ii
S.U.
4.0-6.0
4.9-7.2
4:5-7.5
6.5-8.5
4.0-8.5
4.9-8.5
4.5-8.5
Alkalinity
-mg/L
19
54
56
NE
19
54
56
Aluminum
PEI
820
483
309
NE
820
483
309
Antimon
/L
0.5
0.5
1
1
1
1
1
Arsenic
0.2
2
1
10
10
10
10
Barium
UWL
1 94
44
19
700
700
700
700
Beryllium
L
0.2
0.2
0.2
4
4
4
4
Bicarbonate
mgiL
19
58
59
NE
19
58
59
Boron
50
50
50
700
700
700
700
Cadmium
A9fL
0.09
1
1
2
2
2
2
Calcium
MWL
4
13
17
NE
4
13
17
Carbonate
m
5
5
5
NE
5
5
5
Chloride
m 'i.
8
8
8
250
250
250
250
Chromium
AWL
4
2
3
10
10
10
10
Chromium { VI)
0.5
0.3
0.2
NA*
10*
10*
10*
Cobalt
7
5
3
1
7
5
3
Copper
iv`[_
9
8
5
1 1,000
1,000
1.000
1,000
Fluoride
mg/L
0.1
0.1
0.1
2
2
2
2
Iron
1,040
515
7,680
300
L040
515
7,680
Lead
1
0.3
1
15
15
15
15
Lithium
3
12
11
NE
3
12
11
Magnesium
m
2
2
2
NE
2
2
2
Manganese
_
244
91
113
50
244
91
113
Mercury
u
0.2
0.2
0.2
1
1
1
1
Methane
10
10
10
NE
10
10
10
Molybdenum
RA
0.6
4
2
NE
0.6
4
2
Nickel
12
13
7
100
100
100
100
Nitrate + Nitrite
-N/L
4
3
1
ll**
11**
11**
11**
Potassium
m rl.
5
6
5
NE
5
6
5
Selenium
ai
0.5
1
1
20
20
20
20
Sodium
6
9
8
NE
6
9
8
Strontium
34
69
93
NE
34
69
93
Sulfate
mgJL
4
15
17
250
250
250
250
Sulfide
m
0.1
0.1
0.1
NE
0.1
0.1
0.1
TDS
Tyi
57
107
120
500
500
500
500
Thallium
WL
0.2
0.2
0.2
0.2
0.2
0.2
0.2
TOC
1
2
1
NE
1
2
1
Vanadium
OWL
1
1
1.3
0.3
1
1
1.3
Zinc
EIi
26
14
15
1,000
1,000
1,000
1,000
Radium (Total)
2
2
3
NE
2
2
3
Uranium (Total)
0.0005
0.0005
1 0.0005 1
NF
0.0005
0.0005
0.0005
IMAC - Interim Maximum Allowable Concentration
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
TDS - Total Dissolved Solids
µg/L - micrograms per liter
µg/mL - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
*The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
**The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of 11 mg/L)
Attachment 3 of 7 October 17, 2019 Letter

Marshall Steam Station - Groundwater Background Threshold Values
Parameter
ReportingII its
Calculated Background Threshold
Values
15A NCAC
02L Standard
or IMAC
Site -Specific Groundwater Quality Standards
Established per 15A NCAC 02L .0202(b)(3),
.0202(c), or .0202(h)
Flow Unit
Flow Unit
Shallow
Deep
Bedrock
Shallow
Deep
Bedrock
PH
S.U.
3.6-6.6
5.5-8.1
5.7-7.8
6.5-8.5
3.6-8.5
5.5-8.5
5.7-8.5
Alkalinity
mg/L
69
144
109
NE
69
144
109
Aluminum
µg/L
989.5
180
601
NE
989.5
180
601
Antimony
t L
1
0.5
1
1
1
1
1
Arsenic
L
1
1.3
1
10
10
10
10
Barium
tg/L
462
138
825
700
700
700
825
Beryllium
ig/L,
0.2
0.2
1
4
4
4
4
Bicarbonate
mg/L
71
145
110
NE
71
145
110
Boron
FIg/L
50
50
50
700
700
700
700
Cadmium
µ
1
0.08
1
2
2
2
2
Calcium
m
11
32.7
17.6
NE
11
32.7
17.6
Carbonate
m
5
5
5
NE
5
5
5
Chloride
m
5
4.1
3.6
250
250
250
250
Chromium
17
2.7
8.3
10
17
10
10
Chromium (VI)
µ
7
2.9
8.1
NA*
10*
10*
10*
Cobalt
µ
4.8
1.1
2.6
1
4.8
1.1
2.6
Copper
µg/L
5
5.8
5
1,000
1,000
1,000
1,000
Fluoride
mg/L
0.51
0.253
1.8
2
2
2
2
Iron
119/1,
1,362
190
997
300
1,362
300
997
Lead
µg/L
0.4
0.15
1
15
15
15
15
Lithium
µg/L
5.6
10
9.97
NE
5.6
10
9.97
Magnesium
m
9.98
7.56
14.5
NE
9.98
7.56
14.5
Manganese
0-
155
106.9
310
50
155
106.9
310
Mercury
0.2
0.2
0.2
1
1
1
1
Methane
N L
10
10
13
NE
10
10
13
Molybdenum
g/L
1
6.8
3.7
NE
1
6.8
3.7
Nickel
19.6
7.6
7.9
100
100
100
100
Nitrate + Nitrite
m -N/L
6
1.6
0.56
ll**
11**
11**
11**
Potassium
ma
5
5.24
8.39
NE
5
5.24
8.39
Selenium
1
2.3
1
20
20
20
20
Sodium
MWL
9
26.1
15.7
NE
9
26.1
15.7
Strontium
µg/L
210
725
333
NE
210
725
333
Sulfate
mg/L
11
21.3
22.1
250
250
250
250
Sulfide
mg/L
0.1
0.1
0.1
NE
0.1
0.1
0.1
TDS
m
152
187
194
500
500
500
500
Thallium
µ
0.2
0.1
0.2
0.2
0.2
0.2
0.2
TOC
rngiL
3
2.9
1
NE
3
2.9
1
Vanadium
µ
13
3.6
25.8
0.3
13
3.6
25.8
Zinc
µg/L
32
22.02
21
1,000
1,000
1,000
1,000
Radium (Total)
pCi/L
5
2.88
7.26
NE
5
2.88
7.26
Uranium (Total)
µg/mL
0.0005
0.00047
0.0005
NE
0.0005
0.00047
0.0005
IMAU - mtenm Maxunum Auowaole cooncentranon
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocmies per liter
Radium (Total) - Radimn-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
TDS - Total Dissolved Solids
µg/L - micrograms per liter
µg/mL - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranimn-236, and Uranium-238 combined
*The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
**The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of 11 mgtL)
Attachment 4 of 7 October 17, 2019 Letter

Mavo Steam Electric Plant - Groundwater Background Threshold Values
Parameter
Reporting
Units
Calculated Background Threshold Values
—
Flow Unit
15A NCAC 02L
Standard or
IMAC
Site -Specific Groundwater Quality Standards
Applicable to Corrective Action per 15A NCAC
02L .0202(b)(3), .0202(c), or .0202(h)
Flow Unit
Surficial
Transition Zone
Bedrock
Surficial
Transition Zone
Bedrock
H
S.U.
4.9-6.9
5.6-6.6
5.1-7.2
6.5-8.5
4.9-8.5
5.6-8.5
5.1-8.5
Alkalinity
mg/L
42
302
240
574
NE
42
566
302
240
Aluminum
L
566
692
NE
692
574
Antimony
1
1
1
1
1
1
1
Arsenic
t /L
2
1
1
10
10
10
10
Barium
22
67.7
97
700
700
700
700
Beryllium
IL
1
1
1
4
4
23
4
4
Bicarbonate
m L
23
302
221
NE
302
221
Boron
pt
50
50
50
700
700
700
700
Cadmium
1
1
1
2
2
2
2
Calcium
mg/L
11
59
73
NE
11
59
73
Carbonate
mg/L
10
10
10
NE
10
10
10
Chloride
m !L
5
39
41
250
250
250
250
Chromium
u
8
6
7
10
10
10
10
Chromium (VI)
L
4
1
0.4
NA*
10*
10*
10*
Cobalt
µg/L
2
1
5
1
2
1
5
Copper
AgIL
4
5
5
1,000
1,000
1,000
1,000
Fluoride
m
0.1
0.3
0.4
2
2
2
2
Iron
iL
6,820
L356
3,771
300
6,820
1,356
3,771
Lead
]rg/L
2
1
1
15
15
15
15
Lithium
s�'L
5
6
48
NE
5
6
48
Magnesium
rng/L
1
14
15
NE
1
14
15
Manganese
t 'L
395
355
548
50
395
355
548
M erc
t
0.05
0.2
0.2
1
1
1
1
Methane
i
273
2,505
42
NE
273
2,505
42
Molybdenum
}tg/L
10
1
14
NE
10
1
14
Nickel
g/L
5
5
6
100
100
100
100
Nitrate + Nitrite
mg-N/L
1
0.7
1
ll**
11**
11**
11**
Potassium
mgil,
5
4
11
NE
5
4
11
Selenium
tt
1
1
'2
20
20
20
20
Sodium
me.,L
8
53
117
NE
8
53
117
Strontium
tg/L
27
390
418
NE
27
390
418
Sulfate
mg/L
3
8
130
250
250
250
250
Sulfide
mg/L
0.1
0.1
1 0.2
NE
0.1
0.1
0.2
TDS
m
130
430
4 00
500
500
500
500
Thallium
µg/L
0.2
0.2
0.2
0.2
0.2
0.2
0.2
TOC
mgL
8
2
1
NE
8
2
1
Vanadium
ug/L
3
6
4
0.3
3
6
4
Zinc
jitr: L
140
15
35
1,000
1,000
1,000
1,000
Radium (Total)
Ci/L
2
15
5
NE
2
15
5
Uranium (Total)
kg/mL
0.0002
0.001
0.003
NE
0.0002
0.001
0.003
IMAC - Interim Maximum Allowable Concentration
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
TDS - Total Dissolved Solids
µg/L, - micrograms per liter
µg/mL, - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
*The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
**The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of 11 mg/L)
Attachment 5 of 7 October 17, 2019 Letter

Roxboro Steam Electric Plant - Groundwater Background Threshold Values
Parameter
Reporting
Units
Calculated Background Threshold
Values
15A NCAC 02L
Standard or
IMAC
Site -Specific Groundwater Quality Standards
Applicable to Corrective Action per 15A NCAC
02L .0202(b)(3), .0202(c), or .0202(h)
Flow Unit
Flow Unit
Transition Zone
Bedrock
Transition Zone
Bedrock
H
S.U.
6.3-7.6
6.1-8.3
6.5-8.5
6.3-8.5
6.1-8.5
Alkalinity
mg L
283
379
NE
283
379
Aluminum
g/L
734
183
NE
734
183
Antimony
µ L
1
1
1
1
1
Arsenic
g/L
1
6
10
10
10
Barium
L
94
135
700
700
700
Beryllium
µg/L
1
1
4
4
4
Bicarbonate
L
284
388
NE
284
388
Boron
HIL
50
50
700
700
700
Cadmium
g/L
1
1
2
2
2
Calcium
'L
111
106
NE
111
106
Carbonate
ingi L
5
5
NE
5
5
Chloride
m
180
130
250
250
250
Chromium
g/L
22
4
10
22
10
Chromium (VI)
pg/L
12
0.7
NA*
12
10*
Cobalt
L
3
18
1
3
18
Copper
L
10
2
1,000
1,000
1,000
Fluoride
L
0.4
0.4
2
2
2
Iron
/L
1,030
5,130
300
1,030
5,130
Lead
g/L
1
1
15
15
15
Lithium
g/L
26
27
NE
26
27
M+ esium
mg/L
45
39
NE
45
39
Manganese
g/L
260
1452
50
260
1,452
Mercury
L
0.05
0.05
1
1
1
Methane
L
10
1,120
NE
10
1,120
Molybdenum
L
8
22
NE
8
22
Nickel
g/L
17
3
100
100
100
Nitrate + Nitrite
mg-N/L
4
0.4
11**
11**
11**
Potassium
m
5
10
NE
5
10
Selenium
g/L
2
1
20
20
20
Sodium
mg/L
36
57
NE
36
57
Strontium
µ p, L
760
438
NE
760
438
Sulfate
m
38
69
250
250
250
Sulfide
mg/L
0.2
0.3
NE
0.2
0.3
TDS
m 'L
710
560
500
710
560
Thallium
g/L
0.2
0.2
0.2
0.2
0.2
TOC
mg/L
2
11
NE
2
11
Vanadium
23
3
0.3
23
3
Zinc
µ /L
14
44
1,000
1,000
1,000
Radium (Total)
Ci/L
10
4
NE
10
4
Uranium (Total)
!ML
0.004
0.006
NE
0.004
0.006
IMAC - Interim Maximum Allowable Concentration
NA - Not Applicable
NE - Not Established
mg/L - milligrams per liter
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TOC - Total Organic Carbon
TDS - Total Dissolved Solids
µg/L - micrograms per liter
µg/mL - micrograms per milliliter
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
*The 15A NCAC 02L Standard is 10 µg/L for total Chromium that assumes the concentration exhibited is in the hexavalent valence state
**The 15A NCAC 02L Standard is 10 mg/L for Nitrate and 1 mg/L for Nitrite (added for a total of I 1 mg/L)
Attachment 6 of 7 October 17, 2019 Letter

Background Threshold Value Data Date Ranges
Allen Steam Station BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
BG-01BR
09/06/2018
12/07/2018
09/06/2018
03/11/2019
BG-02BRA-2
06/27/2017
12/07/2018
06/27/2017
12/07/2018
BG-04BR
05/04/2016
12/07/2018
05/04/2016
12/07/2019
GWA-21BR
06/20/2017
12/12/2019
06/20/2017
12/12/2018
AB-12D
03/01/2011
12/07/2018
07/07/2011
12/07/2019
BG-01DA
06/21/2017
12/07/2018
06/21/2017
12/07/2018
BG-02D
12/10/2015
12/07/2019
12/10/2015
12/07/2018
BG-03D
06/26/2015
12/06/2018
06/26/2015
12/06/2018
BG-04D
06/23/2017
12/06/2018
06/23/2017-
12/06/2019
CCR-BG-01DA
09/13/2016
12/05/2018
09/13/2016
03/11/2019
GWA-16D
02/05/2016
12/07/2018
02/05/2016
12/07/2018
GWA-19D
09/06/2018
12/11/2018
09/06/2018
12/11/2018
GWA-21DA
06/20/2017
12/12/2018
06/20/2017
03/07/2019
GWA-23D
05/31/2018
12/12/2018
05/31/2018
12/12/2018
GWA-26D
09/23/2016
12/07/2018
09/23/2016
12/07/2018
AB-12S
03/01/2011
12/07/2018
03/01/2011
12/07/2018
BG-01S
06/29/2015
12/07/2018
06/29/2015
12/07/2018
BG-02S
11/13/2015
12/07/2018
11/13/2015
12/07/2018
BG-03S
12/10/2015
12/06/2018
12/10/2015
12/06/2018
BG-04S
02/04/2016
12/06/2018
02/04/2016
12/06/2018
CCR-BG-01S
06/22/2016
12/05/2018
06/22/2016
03/11/2019
GWA-16S
02/09/2016
12/07/2018
02/09/2016
12/07/2018
GWA-19S
09/20/2016
12/11/2018
09/20/2016
12/11/2018
GWA-21S
03/08/2016
12/06/2019
03/08/2016
03/07/2019
GWA-23S
02/03/2016
112/16/2016
12/12/2018
02/03/2016
12/12/2018
GWA-265
12/07/2018
12/16/201fi
12/07/2018
Belews Creek Steam Station BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
BG-02BRA
4/12/2017
4/18/2018
4/12/2017
4/18/2018
MW-202BR
7/16/2015
10/16/2018
7/16/2015
1/9/2019
BG-01D
7/14/2015
10/16/2018
7/14/2015
4/12/2019
BG-02D
7/9/2015
10/17/2018
7/9/2015
1/8/2019
BG-03D
9/30/2015
10/16/2018
9/30/2015
4/15/2019
MW-202D
1/9/2012
10/16/2018
1/9/2012
1/9/2019
BG-01SR
-
-
4/12/2019
4/12/2019
BG-02S
7/9/2015
10/17/2018
7/9/2015
1/8/2019
BG-035
7/18/2015
10/16/2018
7/18/2015
4/15/2019
MW-03
4/5/2010
10/15/2018
4/5/2010
4/16/2019
MW-202S
1/6/2011
10/16/2018
1/6/2011
1/9/2019
Roxboro Steam Station BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
BG-01
11/30/2010
11/14/2018
11/30/2010
4/24/2019
MW-15D
5/30/2015
11/14/2018
5/30/2015
1/28/2019
MW-18D
12/6/2015
11/14/2018
12/6/2015
1/28/2019
BG-01BR
6/10/2015
11/13/2018
6/10/2015
4/25/2019
BG-02BR
8/10/2017
11/13/2018
8/10/2017
4/30/2019
MW-10BR
5/27/2015
11/14/2018
5/27/2015
1/29/2019
MW-14BR
6/10/2015
11/13/2018
6/10/2015
4/23/2019
MW-15BR
9/12/2015
11/14/2018
9/12/2015
1/28/2019
MW-18BR
6/2/2015
11/14/2018
6/2/2015
1/28/2019
MW-19BRL
6/16/2016
11/14/2018
6/16/2016
4/24/2019
CCR-112BR-BG
5/24/2016
10/8/2018
5/24/2016
1/29/2019
MW-26BR
6/17/2016
11/14/2018
6/17/2016
11/14/2018
MW-29BR
2/28/2017
11/13/2018
2/28/2017
1/29/2019
MW-30BR
2/28/2017
11/13/2018
2/28/2017
1/29/2019
James E. Rogers Energy Complex BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
CCPMW-01D
8/3/2010
11/1/2018
2/25/2010
1/22/2019
GWA-24BR
4/21/2016
10/30/2018
4/21/2016
1/22/2019
GWA-30BR
6/20/2015
10/22/2018
6/20/2015
1/30/2019
MW-22BR
4/15/2016
10/30/2018
6/26/2015
1/30/2019
MW-22DR
8/14/2012
10/30/2018
4/5/2011
1/30/2019
MW-24DR
4/5/2011
11/2/2018
4/5/2011
1/30/2019
MW-32BR
6/16/2015
10/25/2018
6/16/2015
10/25/2018
BG-1D
6/25/2015
10/25/2018
6/25/2015
1/21/2019
CCPMW-1S
2/25/2010
11/1/2018
1 2/25/2010
1/22/2019
GWA-24D
9/14/2015
10/30/2018
6/25/2015
1/22/2019
MW-24D
8/1/2011
11/2/2018
8/1/2011
1/30/2019
MW-30D
5/16/2017
10/25/2018
6/16/2015
1/22/2019
MW-30DA
11/20/2017
10/25/2018
11/20/2017
1/22/2019
MW-32D
9/16/2015
10/25/2018
6/25/2015
1/22/2019
13G-1S
6/29/2015
10/25/2018
6/29/2015
1/21/2019
GWA-24S
9/14/2015
10/30/2018
9/14/2015
1/22/2019
GWA-25S
6/25/2015
11/2/2018
6/25/2015
1/31/2019
GWA-30S
6/22/2015
10/22/2018
6/22/2015
1/30/2019
6/16/2015
10/25/2018
6/16/2015
1/22/2019
HMMW-30S
W-32S
6/16/2015
10/25/2018
6/16/2015
1/22/2019
Mayo Steam Electric Plant BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
MW-12S
6/24/2015
10/2/2018
6/24/2015
1/7/2019
BG-02
7/11/2011
11/6/2018
7/11/2011
4/8/2019
MW-12D
6/24/2015
11/7/2018
6/24/2015
1/7/2019
BG-01
11/3/2011
11/6/2018
11/3/2011
1/9/2019
MW-13BR
6/23/2015
11/8/2018
6/23/2015
4/28/2019
MW-14BR
9/9/2015
11/7/2018
9/9/2015
11/7/2018
CCR-102BR-BG
8/16/2016
10/2/2018
8/16/2016
4/11/2019
Marshall Steam Station BTV Data Date Ranges
Background
Well
Duke Energy Dates
DWR Dates
Begin
End
Begin
End
BG-01BRA
06/15/2017
11/08/2018
06/15/2017
11/08/2018
BG-02BR
11/11/2015
11/09/2018
11/11/2015
02/26/2019
BG-03BR
04/13/2016
11/08/2018
04/13/2016
02/26/2019
BG-03D
07/20/2015
11/08/2018
07/20/2015
02/26/2019
GWA-06D
09/30/2015
11/08/2018
09/30/2015
02/27/2019
GWA-08D
10/01/2015
11/09/2018
07/20/2015
02/25/2019
GWA-12BR
06/02/2016
11/08/2018
06/02/2016
02/26/2019
MW-04D
02/08/2010
11/07/2018
02/08/2010
02/25/2019
BG-01D
07/17/2015
11/08/2018
07/17/2015
02/26/2019
GWA-04D
10/01/2015
11/07/2018
10/01/2015
02/20/2019
GWA-05D
07/19/2015
11/09/2018
07/19/2015
02/21/2019
BG-01S
07/17/2015
11/08/2018
07/17/2015
03/01/2019
BG-02S
12/11/2015
11/08/2018
12/11/2015
02/26/2019
BG-03S
06/23/2016
11/08/2018
06/23/2016
02/26/2019
GWA-04S
09/30/2015
11/07/2019
09/30/2015
02/21/2019
GWA-05S
07/11/2016
--
07/11/2016
--
GWA-06S
07/17/2015
11/08/2019
07/17/2015
02/27/2019
GWA-08S
07/21/2015
11/09/2018
10/01/2015
02/25/2019
GWA-12S
06/01/2016
11/08/2018
06/01/2016
02/26/2019
MS-10
09/08/2010
11/07/2018
09/08/2010
03/12/2019
MW-04
102/08/2010111/07/2018102/08t')O1
0
02/26/2019
Attachment 7 of 7
October 17, 2019 Letter