NC0005363_Weatherspoon Tables_20160701

TABLE 1-1
ROUND 5 WATER LEVEL DATA - JANUARY 12, 2016
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Well ID
Date
Depth to Water
TOC Elevation
Water Level
Elevation
(TOC)
(feet MSL)
BW-1
1/12/2016
4.58
142.82
138.24
CW-1
1/12/2016
4.09
116.84
112.75
CW-2
1/12/2016
4.64
113.41
108.77
CW-3
1/12/2016
4.29
119.08
114.79
MW-1
1/12/2016
16.32
149.19
132.87
MW-2
1/12/2016
2.19
115.22
113.03
M W-3
1/12/2016
3.08
115.52
112.44
MW-4
1/12/2016
4.05
113.90
109.85
MW-5
1/12/2016
3.45
113.32
109.87
M W-6
1/12/2016
3.33
112.02
108.69
MW-7
1/12/2016
2.36
112.61
110.25
MW-8I
1/12/2016
27.75
161.30
133.55
MW-8D
1/12/2016
51.14
161.65
110.51
MW-33S
1/12/2016
4.75
132.84
128.09
MW-33I
1/12/2016
5.25
132.72
127.47
MW-33D
1/12/2016
20.18
132.72
112.54
M W-41I
1/12/2016
5.62
126.33
120.71
M W-41 D
1/12/2016
17.43
126.34
108.91
M W-44S
1/12/2016
17.18
154.60
137.42
M W-44SA
1/12/2016
21.38
154.57
133.19
M W-44I
1/12/2016
21.70
154.40
132.70
M W-44D
1/12/2016
46.31
153.94
107.63
M W-49I
1/12/2016
21.93
145.57
123.64
M W-49 D
1/12/2016
36.46
145.40
108.94
MW-52
1/12/2016
2.15
111.85
109.70
MW-53I
1/12/2016
3.83
117.02
113.19
MW-53D
1/12/2016
8.79
117.02
108.23
MW-54D
1/12/2016
10.84
113.71
102.87
M W-55I
1/12/2016
2.57
111.88
109.31
MW-55D
1/12/2016
8.03
111.86
103.83
ABMW-1
1/12/2016
17.52
154.61
137.09
AW-1 S
1/12/2016
10.89
131.64
120.75
AW-1I
1/12/2016
14.13
131.61
117.48
AW-1D
1/12/2016
21.51
131.57
110.06
AW-2S
1/12/2016
10.64
128.53
117.89
AW-2I
1/12/2016
16.94
128.26
111.32
AW-2D
1/12/2016
20.29
128.32
108.03
AW-3S
1/12/2016
3.58
112.87
109.29
AW-3I
1/12/2016
4.02
113.20
109.18
AW-3D
1/12/2016
5.70
113.06
107.36
BW-2S
1/12/2016
5.85
140.33
134.48
BW-2I
1/12/2016
7.31
139.84
132.53
BW-2D
1/12/2016
28.23
140.00
111.77
BW-3S
1/12/2016
3.50
110.27
106.77
BW-3I
1/12/2016
3.15
110.04
106.89
BW-3D
1/12/2016
0.70
109.90
109.20
OB-1
1/12/2016
2.12
111.76
109.64
OB-2
1/12/2016
2.09
111.85
109.76
OW-1
1/12/2016
Dry
163.44
163.44
OW-3
1/12/2016
27.77
163.75
135.98
OW-8
1/12/2016
23.78
162.07
138.29
OW-9
1/12/2016
17.91
145.55
127.64
PZ-1
1/12/2016
4.21
130.63
126.42
PZ-2
1/12/2016
3.60
126.46
122.86
PZ-3
1 1/12/2016
1 5.71
1 122.51
1 116.80
Prepared by: RHJ Checked by: BER
Notes:
MSL = Mean Sea Level
TOC = Top of Casing
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 1-1 Round 5 Water Level Data - Jan 16.xlsx Page 1 of 1

TABLE 1-2
WELL CONSTRUCTION DATA
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Identification
Date Installed
Material
Diameter
(Inches)
Northing
(Feet)
Easting
(Feet)
Total Well
Depth i
(Feet, BGS)
Measured Well
s
Depth
(Feet, TO
Screened
Interval
(Feet, BGS)
Measuring
Point TOC
(Feet, MSL)
Ground
Surface
(Feet, MSL)
MONITORING WELL
SURFICIAL AQUIFER
BW-1*
8/30/2010
PVC
2
306927.89
2007479.08
20
23.06
5-20
142.82
139.5
CW-1*
8/30/2010
PVC
2
304511.22
2008942.11
14
17.40
4-14
116.84
113.7
CW-2*
8/27/2010
PVC
2
305762.29
2010618.15
15
17.89
5-15
113.41
110.7
CW-3*
8/27/2010
PVC
2
306399.73
2010228.16
15
17.60
5-15
119.08
116.0
BW-2S
2/20/2015
PVC
2
307956.90
2009188.68
22.0
25.90
12-22
140.33
136.8
BW-3S
2/16/2015
PVC
2
305443.56
2004769.34
11.0
14.11
6-11
110.27
107.3
AW-1S
2/10/2015
PVC
2
304862.59
2007048.74
22.5
24.84
12.5-22.5
131.64
128.9
AW-2S
2/12/2015
PVC
2
304193.38
2007849.66
24.0
27.16
14-24
128.53
125.7
AW-3S
2/18/2015
PVC
2
306231.74
2010921.33
11.0
13.95
6-11
112.87
110.3
MW-1*
12/12/1989
PVC
2
306955.56
2007979.95
25
NM
10-25
149.19
148.0
MW-3*
12/12/1989
PVC
2
304971.85
2009388.00
15
15.62
5-15
115.52
113.3
MW-5*
12/12/1989
PVC
2
305463.18
2010247.01
15
17.56
5-15
113.32
111.4
MW-6*
5/11/2010
PVC
2
305150.91
2010011.18
12
NM
2-12
112.02
109.7
MW-33S*
NF
PVC
2
305430.66
2008114.13
15
NM
5-15
132.84
129.9
MW-44SA*
3/6/2012
PVC
2
305846.24
2009217.31
42
45.49
37-42
154.57
151.4
MW-52*
3/8/2012
PVC
2
305488.60
2010343.91
30
NM
10-30
111.85
112.2
LOWER YORKTOWN FORMATION
BW-2I
2/19/2015
PVC
2
307955.17
2009187.45
55.0
59.00
50-55
139.84
137.0
BW-3I
2/16/2015
PVC
2
305442.40
2004771.36
17.0
19.95
13-18
110.04
107.5
AW-1I
02/10-11/2015
PVC
2
304866.57
2007045.04
46.5
49.03
41.5-46.5
131.61
128.9
AW-2I
2/11/2015
PVC
2
304184.27
2007854.46
43.5
46.05
38.5-43.5
128.26
125.7
AW-3I
2/18/2015
PVC
2
306229.49
2010919.31
18.0
21.04
13.5-18.5
113.20
110.1
MW-2*
12/12/1989
PVC
2
304964.48
2009387.70
30
30.77
20-30
115.22
113.0
MW-4*
12/12/1989
PVC
2
305458.18
2010249.08
30
32.82
20-30
113.90
111.0
MW-7*
5/11/2010
PVC
2
305145.58
2010010.09
33
NM
30.5-33
112.61
109.6
MW-8I*
2/28/2012
PVC
2
306230.30
2008672.42
60
63.36
50-60
161.30
158.6
MW-33I*
NF
PVC
2
305434.56
2008108.90
50
53.42
40-50
132.72
129.6
MW-41I*
3/9/2012
PVC
2
306536.96
2009938.35
31
NM
21-31
126.33
123.3
MW-44I*
2/29/2012
PVC
2
305857.10
2009217.69
56
NM
46-56
154.40
151.5
MW-49I*
3/7/2012
PVC
2
305547.11
2009944.54
51.5
54.59
41.5-51.5
145.57
142.8
MW-53I*
3/2/2012
PVC
2
304524.26
2008933.96
31
34.47
21-31
117.02
113.7
MW-55I
2/23/2012
PVC
2
305407.12
2010402.37
26
NM
16-26
111.88
112.0
PEE DEE FORMATION
BW-2D
2/20/2015
PVC
2
307952.84
2009186.22
70.0
74.70
65-70
140.00
137.0
BW-3D
02/13-16/2015
PVC
2
305441.13
2004773.35
45.0
48.21
40-45
109.90
107.4
AW-1D
02/10-12/2015
PVC
2
304864.28
2007047.20
67.0
71.75
62-67
131.57
128.9
AW-21D
2/11-12/2015
PVC
2
304181.97
2007855.53
58.0
61.05
53-58
128.32
125.6
AW-3D
02/17-18/2015
PVC
2
306227.73
2010916.54
47.0
49.66
42-47
113.06
110.3
MW-8D*
2/28/2012
PVC
2
306225.80
2008666.65
95.5
NM
85.5-95.5
161.65
158.7
MW-33D*
NF
PVC
2
305434.32
2008109.08
76
NM
66-76
132.72
129.7
MW-41D*
3/9/2012
PVC
2
306536.90
2009937.99
85
NM
75-85
126.34
123.3
MW-44D*
2/29/2012
PVC
2
305850.72
2009220.98
87
NM
77-87
153.94
151.3
MW-49D*
3/7/2012
PVC
2
305547.35
2009945.03
84
NM
74-84
145.40
142.8
MW-53D*
3/2/2012
PVC
2
304524.16
2008933.80
56
60.21
46-56
117.02
113.7
MW-54D*
2/27/2012
PVC
2
305165.94
2010010.77
69
NM
59-69
113.71
110.6
MW-55D
2/23/2012
PVC
2
305406.81
2010402.37
70
NM
65-70
111.86
112.0
Prepared by: CMS Checked by: JEC
Notes:
BGS - Below ground surface NF - No Flow
TOC - Top of casing NM - Not Measured
MSL - Mean sea level
'Total soil boring depth as reported on the monitoring well construction logs
Well depths measured by SynTerra, 2015
Monitoring well coordinate and elevation data from a survey provided by McKim & Creed, dated 3/27/15
*Data obtained from the Field Exploration Data Report, Progress Energy - Weatherspoon Plant Ash Pond, Lumberton, North Carolina, S&ME Project No. 1054-12-062, June 11, 2012.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\79.EG_CSASUP\Tables\Table 1-2 Well Construction Data.xlsx Page 1 of 2

TABLE 1-2
WELL CONSTRUCTION DATA
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Identification
Date Installed
Material
Diameter
(Inches)
Northing
(Feet)
Easting
(Feet)
Total Well
Depth'
(Feet, BGS)
Measured Well
Depth z
(Feet, TOC)
Screened
Interval
(Feet, BGS)
Measuring
Point TOC
(Feet, MSL)
Ground
Surtace
(Feet, MSL)
ASH PORE WATER
ABMW-1
2/20/2015
PVC
2
305864.49
2009220.85
34.0
33.85
29-34
154.61
151.2
(OW-8) MW-8S*
9/21/2011
PVC
2
306224.25
2008830.32
21
NM
11-21
162.07
158.9
MW-44S*
2/20/2012
PVC
2
305850.27
2009216.25
21
NM
11-21
154.60
151.5
PIEZOMETER
OW-1*
NF
PVC
2
306358.46
2007896.76
26
NM
16-26
163.44
160.7
OW-3*
NF
PVC
2
306708.63
2008199.53
26
NM
16-26
163.75
161.2
OW-9*
NF
PVC
2
305342.10
2008830.32
23
NM
13-23
145.55
142.5
OW-15*
NF
PVC
2
305220.40
2009502.89
26
NM
16-26
146.30
143.4
OW-17*
NF
PVC
2
305629.52
2010074.26
29
NM
19-29
145.41
142.5
013-1*
NF
PVC
2
305472.65
2010355.40
30
NM
5-30
111.76
112.0
OB-2*
NF
PVC
2
305483.42
2010324.84
30
NM
5-30
111.85
112.1
PZ-1*
NF
PVC
2
307000.27
2009075.74
5
NM
4-5
130.63
127.6
PZ-2*
NF
PVC
2
306353.92
2009640.41
5
NM
4-5
126.46
123.4
PZ-3*
NF
PVC
2
305783.45
2010128.65
5
NM
4-5
122.51
119.5
SOIL BORING
AB-1
2/18/2015
N/A
N/A
306498.9
2008393.8
29
N/A
N/A
N/A
151.7
AB-2
2/19/2015
N/A
N/A
305620.0
2008779.4
35
N/A
N/A
N/A
151.5
AB-3
2/19/2015
N/A
N/A
306131.7
2009380.9
30
N/A
N/A
N/A
139.7
AB-4
2/20/2015
N/A
N/A
305543.6
2009335.6
39
N/A
N/A
N/A
139.8
SB-1
2/12/2015
N/A
N/A
306965.9
2007976.3
28
N/A
N/A
N/A
147.0
SB-2
2/11/2015
N/A
N/A
306275.9
2009836.4
6
N/A
N/A
N/A
126.6
SB-3
2/11/2015
N/A
N/A
305079.7
2009719.1
3
N/A
N/A
N/A
112.1
SB-4
2/10/2015
N/A
N/A
305393.7
2008265.2
20
N/A
N/A
N/A
129.3
Prepared by: CMS Checked by: JEC
Notes:
BGS - Below ground surface NF - No Flow
TOC - Top of casing NM - Not Measured
MSL- Mean sea level
'Total soil boring depth as reported on the monitoring well construction logs
Well depths measured by SynTerra, 2015
Monitoring well coordinate and elevation data from a survey provided by McKim & Creed, dated 3/27/15
*Data obtained from the Field Exploration Data Report, Progress Energy - Weatherspoon Plant Ash Pond, Lumberton, North Carolina, S&ME Project No. 1054-12-062, June 11, 2012.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-2 Well Construction Data.xlsx Page 2 Of 2

TABLE 1-3
NPDES GROUNDWATER COMPLIANCE WELL MONITORING
REQUIREMENTS*
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Well
Identification
Parameter Description
Frequency
Antimony
Chromium
Nickel
Thallium
Arsenic
Copper
Nitrate
Water
Monitoring Wells
BW-1, CW-1,
CW-2, CW-3
March, June,
and October
Barium
Iron
pH
Level
Boron
Lead
Selenium
Zi
Zinc
Cadmium
Manganese
Sulfate
Chloride
Mercury
TDS
Prepared by: VTV Checked by: MST
*Updated to include CAMA parameters (not presented in Table 1-3) in 2015.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-3 GW Compliance
Parameters.xlsx Page 1 of 1

TABLE 1-4
CSA MONITORING ROUNDS AND CSA WELLS SAMPLED
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Well ID
Sampling Round Note 1
Well ID
Sampling Round Note 1
1
1 2
3
4
5
6
1
1 2
3
4
5
6
Ash Pore Water Wells
ABMW-1 X X X
PZ-1
X
X
MW-44S X X PZ-2 X
PZ-3 X
Surficial Groundwater
AW-1S
X
X
BW-1 Note 2,3
X
X
X
X
X
X
AW-2S
X
X
X
BW-2S Note 3
X
X
X
X
X
X
AW-3S
X
X
X
BW-3S Note 3
X
X
X
X
X
X
MW-1
X
X
X
CW-1 Note 2
X
X
X
X
X
X
MW-3
X
X
X
X
CW-2 Note 2
X
X
X
X
X
X
MW-5
X
X
X
CW-3 Note 2
X
X
X
X
X
X
MW-6 X X X X X MW-33S X
MW-44SA X X X X
Lower Yorktown Formation
AW-1I
X
X
MW-7
X
X
X
AW-2I
X
X
MW-8I
X
X
X
X
AW-3I
X
X
MW-33I
X
BW-2I Note 2
X
X
X
X
X
X
MW-41I
X
X
X
BW-3I Note 2
X
X
X
X
X
MW-44I
X
X
X
X
MW-2
X
X
X
MW-49I
X
X
X
X
MW-4 X X X X MW-53I X
MW-55I X X X X X X
Pee Dee Formation
AW-1D
X
X
BW-3D Note 3
X
X
X
X
X
AW-2D
X
X
MW-53D
X
JAW-3D
X
X
MW-54D
X
BW-2DNote 4
X
XI
IMW-55D
I
X
I X
I X
I X
Prepared by: VTV Checked by: MST
Note 1: Groundwater monitoring round dates (approximate):
1 (March 2015) 4 (December 2015)
2 (June 2015) 5 (January 2016)
3 (September/October 2015) 6 (March 2016)
Note 2: NPDES compliance well
Note 3: Background well
Note 4: Used as piezometer only.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 1-4 CSA GW Monitoring Sampled Page 1 of 1

TABLE 1-5
IRON AND VANADIUM CONCENTRATIONS IN SURFICIAL GROUNDWATER
BACKGROUND WELLS
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Well ID
Turbidity
(NTU)
Concentration (µg/L)
CSA Monitoring
Round
Total Iron
Total Vanadium
6.01
313
6.81
4
BW-1
1.41
124
7.24
5
3.58
482
6.66
6
34.6
1,240
4.42
4
BW-2S
9.58
1,670
3.08
5
61
2,750
5.08
6
5.14
4,100
2.63
4
BW-3S
2.25
3,920
2.95
5
2.9
3,540
2.82
6
3.59
66
ND
4
MW-1
2.88
223
ND
5
1.96
NA
ND
6
Prepared by: VTV Checked by: MST
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-5 Iron
Vanadium Conc.xlsx Page 1 of 1

TABLE 1-6
SURFICIAL UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
mV
mV
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
500
0.3*
1000
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
Background
BW-1
11/16/2010
4.5
8.35
18
0
NM
NM
NM
4.5
NM
<0.5
<5
NA
NA
0.22
NA
NA
NA
NA
1390
<5
NA
<5
NA
NA
42.6
0.11
113
NA
<10
BW-1
03/01/2011
4.2
6.80
14
289
0.4
-13
192
6.28
NM
<0.5
<5
NA
<50
0.26
NA
NA
<5
NA
2040
<5
20.7
<5
NA
NA
56.3
<0.1
222 b
NA
21.2 b
BW-1
06/07/2011
4.2
7.99
18
162
0.52
-59
146
1.25
NM
<0.5
<5
NA
59.9
0.39
NA
NA
<5
NA
87.9
<5
33.4
<5
NA
NA
17.6
0.14
96
NA
<10
BW-1
10/03/2011
4.6
7.31
19
164
0.5
-149
56
0.58
NM
<0.5
<5
NA
86.8
0.23
NA
NA
<5
NA
643
<5
26.6
<5
NA
NA
35.5
0.12
92
NA
<10
BW-1
03/05/2012
4.2
5.63
16
241
0.45
-38
167
0.58
NM
<0.5
<5
NA
<50
0.32
NA
NA
<5
NA
591
<5
17.8
<5
NA
NA
56.5
0.1
209
NA
17.7
BW-1
06/04/2012
4.1
7.38
18
151
4.2
-56
149
2.2
NM
<0.5
<5
NA
52.6
<0.08
NA
NA
<5
NA
<50
<5
29.5
<5
NA
NA
38.8
0.66
92
NA
<10
BW-1
10/01/2012
4.3
8.43
20
155
0.5
214
419
0.53
NM
<0.5
<5
NA
58.3
0.31
NA
NA
<5
NA
<50
I <5
28.2
<5
NA
NA
35.9
0.14
86
NA
<10
BW-1
03/11/2013
3.9
6.32
17
227
1.29
289
494
2.78
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
143
1.4
14
<5
NA
NA
56
1 <0.2
150
NA
23
BW-1
06/11/2013
4.0
6.62
19
152
0.59
318
523
1.72
NM
<1
<1
NA
69
<1
NA
NA
<5
NA
44
<1
29
<5
NA
NA
37
<0.2
85
NA
8
BW-1 DUP
06/11/2013
4.0
6.62
19
152
0.59
318
523
1.72
NM
<1
<1
NA
66
<1
NA
NA
<5
NA
43
<1
29
<5
NA
NA
37
<0.2
87
NA
<5
BW-1
10/01/2013
4.2
5.94
20
187
0.24
101
306
9.9
NM
<1
1.05
NA
<50
<1
NA
NA
<5
NA
392
<1
27
<5
NA
NA
40
<0.2
110
NA
<5
BW-1
03/06/2014
3.9
5.23
12
256
1
381
586
0.52
NM
<1
<1
NA
<50
5.2
NA
NA
<5
NA
657
1.35
16
<5
NA
NA
58
<0.2
170
NA
13
BW-1
06/04/2014
4.0
5.80
18
123
NM
345
550
1.1
NM
<1
1.18
NA
<50
<1
NA
NA
<5
NA
2140
1.56
13
<5
NA
NA
56
<0.2
170
NA
15
BW-1
10/03/2014
4.3
8.36
20
139
0.27
247
452
3.31
NM
<1
<1
NA
74
<1
NA
NA
<5
NA
283
1.1
22
<5
NA
NA
36
<0.2
82
NA
<5
BW-1
03/09/2015
4.1
4.55
14
179
1.34
327
532
2.88
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
162
1.14
10
<5
NA
NA
51
<0.2
130
NA
14
BW-1
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<1
<1
<1
67
<1
NA
0.017
<5
<1
253
1.1
24
<5
3.14
<1000
47
<0.2
87
5.09
<5
BW-1 DUP
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<1
<1
<1
67
<1
NA
NA
<5
<1
231
1.05
25
<5
3.19
<1000
48
<0.2
97
5.02
<5
BW-1
10/14/2015
4.2
8.78
19
756
0.3
244
449
0.46
NM
<1
<1
<1
70
<1
NA
NA
<5
<1
39
1.13
32
<5
2.86
28
59
0.302
96
2.98
9
BW-1
12/02/2015
4.2
6.87
18
213
1.03
331
536
6.01
0
<1
<1
<1
62
<1
0.056
NA
2.2
<1
313
2.22
35
1.22
11.9
40
57
<0.2
130
6.81
16
BW-1
01/11/2016
3.7
4.58
15
149
1.4
314
519
1.41
0
<1
I<1
<1
60
<1
10.08
NA
2.33
1 <1
124
1.37
9
<1
6.47
21
46
<0.2
110
7.24
19
BW-1
04/20/2016
4.1
4.95
17
120
0.4
262
467
3.58
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
482
1.12
12
<5
4.78
18
35
<0.2
86
6.66
13
BW-2S
03/06/2015
6.3
5.01
10
240
0.1
-80
126
216
2
<1
2.39
<1
<50
<1
NA
NA
8.61
<1
2570
7.85
31
2.17
6.26
146
9.1
<0.2
280
18.4
<5
BW-2S
06/04/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
0.04
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/05/2015
5.1
9.85
18
86
0.3
-92
113
>1000
NM
<1
3.93
<1
<50
<1
NA
NA
25.9
<1
6420
42.1
25
2.9
11.6
39
8.5
<0.2
520
47.3
10
BW-2S
09/30/2015
5.0
14.10
22
66
2.1
21
226
29
NM
<1
<1
<1
<50
<1
NA
NA
1.54
<1
2150
1.09
19
<1
4.33
19
NA
<0.2
NA
4.08
<5
BW-2S
12/02/2015
9.8
8.33
18
62
0.4
120
325
34.6
1.5
<1
<1
<1
<50
<1
0.063
NA
1.42
<1
1240
1.66
1 15
<1
4.34
18
7.5
<0.2
62
4.42
1 <5
BW-2S
O1/12/2016
4.7
1 5.85
13
1 57
1.06
181
386
9.58
1
<1
<1
<1
<50
<1
1<0.03
NA
<1
I <1
1670
<1
17
<1
4.04
19
8.6
<0.2
46
3.08
<5
BW-2S
03/07/2016
5.6
5.37
16
114
0.21
1
206
61
1.5
<1
1.46
<1
<50
<1
0.032
NA
2.51
<1
2750
2.17
31
<1
4.61
36
7.9
<0.2
110
5.08
<5
BW-3S
03/05/2015
5.4
3.40
18
112
0.25
41
246
14.3
4.5
<1
<1
<1
<50
<1
NA
NA
1.98
<1
5240
<1
46
<1
10
21
5.3
<0.2
69
3.44
8
BW-3S
06/03/2015
5.5
5.62
19
99
0.4
-108
97
19.5
3
<1
<1
<1
<50
<1
NA
0.034
2.18
<1
4490
<1
40
<1
8.75
21
9.1
<0.2
75
3.68
<5
BW-3S
09/30/2015
5.2
7.38
22
84
0.3
58
263
7.89
NM
<1
<1
<1
<50
<1
NA
NA
1.71
<1
3210
<1
33
<1
7.46
16
NA
<0.2
NA
3.44
<5
BW-3S
12/02/2015
5.3
3.94
18
99
0.33
7
212
5.14
NM
<1
<1
<1
<50
<1
0.049
NA
1.44
<1
4100
<1
36
<1
9.78
21
7.5
<0.2
74
2.63
<5
BW-3S
O1/11/2016
5.1
3.50
15
104
0.29
1 45
250
2.25
1.5
<1
<1
<1
<50
<1
0.047
NA
1.59
<1
3920
<1
45
<1
10.2
21
10
<0.2
60
2.95
1 <5
BW-3S
03/07/2016
5.4
4.12
14
87
0.17
58
263
2.9
3
<1
<1
<1
<50
<1
0.037
NA
1.61
<1
3540
<1
39
<1
8.11
20
7.5
<0.2
70
2.82
<5
MW-1
03/19/1990
6.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
180
ND
NA
NA
NA
NA
13
NA
10
NA
NA
MW-1
07/05/1990
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
140
ND
NA
NA
NA
NA
9.2
NA
56
NA
NA
MW-1
11/05/1990
7.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
90
ND
NA
NA
NA
NA
15
NA
44
NA
NA
MW-1
03/06/1991
7.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.1
NA
NA
NA
NA
300
1.4
NA
NA
NA
NA
17
NA
130
NA
NA
MW-1
07/01/1991
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
500
ND
NA
NA
NA
NA
10
NA
110
NA
NA
MW-1
11/06/1991
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.4
NA
NA
NA
NA
360
3.9
NA
NA
NA
NA
7.3
NA
60
NA
NA
MW-1
03/02/1992
7.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.8
NA
NA
NA
NA
ND
ND
NA
NA
NA
NA
11
NA
58
NA
NA
MW-1
07/07/1992
4.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.3
NA
NA
NA
NA
230
ND
NA
NA
NA
NA
10
NA
40
NA
NA
MW-1
11/04/1992
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
<50
<1
NA
NA
NA
NA
6.7
NA
64
NA
NA
MW-1
03/10/1993
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
2300
<1
NA
NA
NA
NA
10
NA
38
NA
NA
MW-1
07/12/1993
7.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
3000
<1
NA
NA
NA
NA
15
NA
39
NA
NA
MW-1
11/08/1993
5.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
Soo
<1
NA
NA
NA
NA
8.7
NA
44
NA
NA
MW-1
03/07/1994
4.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
0.2
NA
NA
NA
NA
1100
<1
NA
NA
NA
NA
12
NA
36
NA
NA
MW-1
07/12/1994
7.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
4700
<1
NA
NA
NA
NA
7.8
NA
32
NA
NA
MW-1
10/31/1994
4.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
17000
<1
NA
NA
NA
NA
7.9
NA
35
NA
NA
MW-1
03/07/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
6700
<5
NA
NA
NA
NA
8.1
NA
32
NA
NA
MW-1
07/11/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
4
NA
NA
<0.1
NA
NA
NA
NA
18000
<1
NA
NA
NA
NA
11
NA
56
NA
NA
MW-1
03/05/1996
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.4
NA
NA
0.8
NA
NA
NA
NA
1900
4
NA
NA
NA
NA
NA
NA
523
NA
NA
MW-1
03/18/1997
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
1.8
NA
NA
<0.5
NA
NA
NA
NA
9800
2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
03/09/1998
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<3
NA
NA
<0.5
NA
NA
NA
NA
3700
<2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
12/13/2006
4.5
16.81
65
0
NM
NM
NM
NM
NM
0.69
0.12
<0.051
16.4
0.024
NA
NA
0.23
NA
536
0.16
7.7
0.43
NA
NA
3.36
0.051
10
NA
1.4
MW-1
03/14/2007
4.5
16.80
62
NM
NM
NM
NM
NM
NM
<3
<2
<1
11
<1
NA
NA
<5
NA
1270
<3
8
<5
NA
NA
5
<1
22
NA
<5
MW-1
11/13/2007
4.5
21.69
67
102
NM
NM
NM
NM
NM
<2.5
Q
<1
22
<1
NA
NA
<5
NA
1 401
<5
<5
15
1 NA
NA
24
<1
52
NA
30
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment P1an\19.EG_CSASUP\Tab1es\Tab1e 1-6 Surficial Unit GW Exceedances Page 1 of 4

TABLE 1-6
SURFICIAL UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
mV
mV
NTUs
mg/l
ug/I
ug/l
ug/l
ug/I
ug/l
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
500
0.3*
1000
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
MW-1
03/18/2008
3.8
17.12
62
54
NM
I NM
NM
NM
NM
2
<5
<1
20
<2
NA
NA
5
NA
313
1 <3
<5
<5
NA
NA
8
<5
33
NA
12
MW-1
11/11/2008
4.7
18.15
67
39
NM
NM
NM
NM
NM
<2.5
<2
<1
8
<1
NA
NA
<5
NA
414
<2
7
<5
NA
NA
<10
<1
63
NA
25
MW-1
03/24/2009
4.0
17.15
62
36
NM
NM
NM
NM
NM
<1
<1
<1
45
<1
NA
NA
5
NA
408
2
6
1
NA
NA
<5
<1
35
NA
23
MW-1
10/15/2009
4.1
19.35
67
48
NM
NM
NM
NM
NM
<1
<1
<1
17.2
<1
NA
NA
4
NA
1520
2
6
2
NA
NA
7
<1
25
NA
9
MW-1
03/17/2010
3.8
16.74
61
41
NM
NM
NM
NM
NM
<1
<1
<1
13
<1
NA
NA
4
NA
1400
<1
4
<1
NA
NA
6
<1
9
NA
<1
MW-1
06/05/2015
4.0
17.88
17
44
2.03
206
411
3.43
<0.5
<1
<1
<1
<50
<1
NA
NA
<1
<1
323
<1
10
<1
1.41
9
5
<0.2
<25
<0.3
<5
MW-1
12/01/2015
4.6
17.72
19
40
2.27
246
451
3.59
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
66
<1
8
<1
1.44
8
5.6
<0.2
<25
<0.3
<5
MW-1
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
223
<1
11
<1
1.46
9
4.3
<0.2
<25
<0.3
SO
MW-1 DUP
O1/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
270
<1
11
<1
1.46
9
4.6
<0.2
<25
<0.3
10
MW-1
04/20/2016
4.5
16.89
17
38
1.67 S
210
415
1.96
NM
<1
<1
<1
<50
<1
NA
NA
<1
<1
NA
<1
NA
NA
NA
NA
3.6
<0.2
1 <25
NA
NA
Surficial
AW-1S
03/03/2015
4.5
11.64
16
46
3.46
196
401
4.88
<0.5
<1
<1
<1
<50
<1
NA
NA
<1
<1
283
<1
13
2.04
1.42
9
16
<0.2
25
<0.3
<5
AW-1S
06/02/2015
4.7
12.95
21
30
2.79
210
415
2.68
NM
<1
<1
<1
<50
<1
NA
0.016
<1
<1
12
<1
<5
<1
1.14
7
4.4
<0.2
<25
<0.3
<5
AW-2S
03/03/2015
4.1
10.23
14
615
1.82
11
216
5.31
3.5
<1
1.02
10.3
130
1.85
NA
NA
16.6
65.1
10900
2.22
859
140
4.44
241
Soo
<0.2
520
0.34
379
AW-2S DUP
03/03/2015
4.1
10.23
14
615
1.82
11
216
5.31
3.5
<1
<1
10
138
1.92
NA
NA
15.3
70.3
13600
2.4
940
149
4.6
250
600
<0.2
540
<0.3
388
AW-2S
06/03/2015
3.6
12.59
19
695
1.22
326
531
0.81
3
<1
<1
9.86
117
1.89
NA
0.011
5.48
61.6
7750
3.52
982
130
4.39
268
710
0.237
500
<0.3
379
AW-2S
09/29/2015
3.5
13.28
24
870
0.4
375
580
3.36
NM
<1
1.11
14.2
165
3.16
NA
NA
6.46
109
10500
6.18
1270
216
6.46
386
NA
0.364
NA
0.405
635
AW-35
1 03/04/2015
5.8
3.16 1
24
121
1 3.88
-2
203
217
<0.5
<1
<1
<1
<50
<1
NA
NA
3.52
<1
4800
1 1.69
39
1.46
20.3
20
14
<0.2
240
3.99
14
AW-3S
06/04/2015
5.8
5.12
20
136
0.6
-76
129
23
3.5
<1
4.97
<1
<50
<1
NA
0.02
1.36
<1
17000
<1
57
<1
11.3
20
1.1
<0.2
80
2.65
12
AW-3S
09/30/2015
5.7
7.35
24
94
0.4
-98
107
9.87
NM
<1
3.7
<1
<50
<1
NA
NA
<1
<1
11900
<1
24
<1
6.49
10
NA
<0.2
NA
2.04
<5
CW-1
11/16/2010
5.9
4.73
18
0
NM
NM
NM
9.6
NM
<0.5
<5
NA
53.6
<0.08
NA
NA
<5
NA
2810
<5
53.4
<5
NA
NA
30.5
<0.1
93
NA
<10
CW-1
03/01/2011
6.0
3.89
13
147
0.53
-139
66
11.3
NM
<0.5
5.4
NA
<50
<0.08
NA
NA
<5
NA
3320
<5
48.7
<5
NA
NA
29.1 b
<01
110 b
NA
<10
CW-1
06/07/2011
5.6
5.42
21
126
0.57
-159
46
9.05
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
4140
<5
53.5
<5
NA
NA
12.5
<0.1
91
NA
<10
CW-1
10/03/2011
5.7
4.17
19
132
0.92
-173
32
5.32
NM
<0.5
<5
NA
<50
0.16
NA
NA
<5
NA
2580
<5
39.2
<5
NA
NA
15.6
<0.1
59
NA
<10
CW-1
03/05/2012
6.2
3.62
14
150
0.46
-88
1 117
28.4
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2060
<5
37.4
<5
NA
NA
11.6
<0.1
85
NA
<10
CW-1 DUP
03/05/2012
6.2
3.62
14
150
0.46
-88
117
28.4
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2090
<5
37
<5
NA
NA
11.7
<01
96
NA
<10
CW-1
06/04/2012
6.3
4.53
19
167
2.83
-120
85
3.43
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2390
<5
35.5
<5
NA
NA
12.2
<0.1
97
NA
<10
CW-1
10/01/2012
5.4
4.33
21
97
0.46
-115
90
28.9
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2590
<5
29.7
<5
NA
NA
12.1
<01
78
NA
<10
CW-1
03/11/2013
6.0
4.12
15
139
0.25
-9
196
12.7
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2750
<1
35
<5
NA
NA
11
<0.2
85
NA
<5
CW-1 DUP
03/11/2013
6.0
4.12
15
139
0.25
-9
196
12.7
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2580
<1
34
<5
NA
NA
11
<0.2
85
NA
<5
CW-1
06/11/2013
5.2
3.65
21
94
0.32
1 50
255
1 18.1
NM
<1
1.84
NA
<50
<1
NA
NA
<5
NA
2430
<1
39
<5
NA
NA
12
<0.2
84
NA
<5
CW-1
10/01/2013
5.2
5.70
21
94
0.49
-28
177
10
NM
<1
1.34
NA
<50
1.06
NA
NA
<5
NA
2130
<1
33
<5
NA
NA
11
<0.2
72
NA
<5
CW-1 DUP
10/01/2013
5.2
5.70
21
94
0.49
-28
177
10
NM
<1
1.31
NA
<50
<1
NA
NA
<5
NA
2150
<1
33
<5
NA
NA
11
<0.2
73
NA
<5
CW-1
03/06/2014
5.8
3.76
10
140
0.45
24
229
6.66
NM
<1
<1
NA
<50
1.18
NA
NA
<5
NA
3680
<1
45
<5
NA
NA
20
<0.2
88
NA
7
CW-1
06/04/2014
5.4
5.69
19
88
NM
-63
142
7.3
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2250
<1
42
<5
NA
NA
17
<0.2
81
NA
<5
CW-1
10/03/2014
5.4
4.40
21
121
0.26
21
226
12.4
NM
<1
<1
NA
71
<1
NA
NA
<5
NA
2090
<1
44
<5
NA
NA
16
<0.2
77
NA
5
CW-1
03/09/2015
5.9
3.69
13
138
0.31
35
240
7.58
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2310
<1
39
<5
NA
NA
15
<0.2
83
NA
<5
CW-1
06/02/2015
5.5
5.44
19
105
0.46
-107
98
9.14
1.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
2020
1 <1
36
<5
6.12
<1000
14
<0.2
71
1.29
<5
CW-1
10/14/2015
5.7
4.30
20
129
0.4
45
250
3.75
NM
<1
1.34
<1
<50
<1
NA
NA
<5
<1
2200
<1
45
<5
7.55
82
22
<0.2
66
0.834
<5
CW-1
12/01/2015
6.6
4.10
17
150
0.2
-145
60
9.9
1
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
1620
<1
38
<1
4
119
16
<0.2
83
0.513
<5
CW-1
01/12/2016
6.4
4.09
14
153
0.6
-11
194
9.2
0.5
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
1390
<1
42
<1
4.28
131
19
<0.2
93
1
<5
CW-1
03/07/2016
6.3
4.00
15
155
1.28
18
223
9.6
0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
1130
<1
38
<5
3.69
135
18
<0.2
83
0.733
<5
CW-2
11/16/2010
7.4
6.37
19
0
NM
NM
NM
1.1
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
453
<5
30.3
<5
NA
NA
7.4
<01
141
NA
<10
CW-2
03/01/2011
7.5
4.76
13
266
0.21
-129
76
0.5
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
321
<5
14
<5
NA
NA
9.2 b
<01
144 b
NA
<10
CW-2 DUP
03/01/2011
7.5
4.76
13
266
0.21
-129
76
0.5
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
333
<5
14.3
<5
NA
NA
9 b
<0.1
156 b
NA
<10
CW-2
03/05/2012
6.9
4.28
14
261
0.37
-60
145
1.07
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
399
<5
7.3
<5
NA
NA
8.8
<0.1
152
NA
<10
CW-2
06/11/2013
7.2
3.90
18
286
0.28
-80
125
0.54
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
371
<1
12
<5
NA
NA
9.3
<0.2
160
NA
<5
CW-2
06/04/2014
7.5
5.34
18
222
NM
-133
72
1.6
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
388
<1
7
<5
NA
NA
10
<0.2
150
NA
<5
CW-2
10/03/2014
7.2
6.08
21
268
0.24
-67
138
2.46
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
364
<1
7
<5
NA
NA
11
<0.2
160
NA
11
CW-2 DUP
10/03/2014
7.2
6.08
21
268
0.24
-67
138
2.46
NM
<1
<1
NA
135
<1
NA
NA
<5
NA
436
<1
27
<5
NA
NA
11
<0.2
150
NA
<5
CW-2
06/02/2015
7.4
5.86
18
268
0.52
-235
-30
1.61
<0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
384
<1
10
<5
3.54
1 <1000
9.9
<0.2
170
<0.3
1 <5
CW-2
10/14/2015
7.2
4.92
20
282
0.4
52
257
0.98
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
65
<1
<5
<5
4.24
215
7.4
<0.2
160
0.769
<5
CW-2 DUP
10/14/2015
7.2
4.92
20
282
0.4
52
257
0.98
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
65
<1
<5
<5
4.29
216
7.4
<0.2
160
0.765
<5
CW-2
12/02/2015
7.5
4.71
18
267
0.6
-30
175
1.55
ND
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
97
<1
<5
<1
3.37
208
11
<0.2
170
0.306
<5
CW-2
01/12/2016
7.5
4.64
15
260
0.54
117
322
1.89
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
139
<1
<5
<1
3.44
202
12
<0.2
150
0.303
<5
CW-2
03/07/2016
7.3
4.51
15
256
0.38
-71
134
5
0
<1
<1
<1
<50
<1
NA
NA
<5
<1
180
<1
6
<5
3.72
193
10
<0.2
140
0.301
<5
CW-2 DUP
03/07/2016
7.3
4.51
15
256
0.38
-71
134
5
0
<1
<1
<1
<50
<1
NA
NA
<5
<1
247
<1
8
<5
3.54
202
10
<0.2
140
<0.3
<5
CW-3
11/16/2010
6.8
8.55
19
0
NM
NM
NM
10
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
1160
<5
25.9
<5
NA
NA
<5
<0.1
107
NA
<10
CW-3
03/01/2011
6.0
3.73
14
402
0.86
51
256
28.9
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
919
<5
49.5
<5
NA
NA
76.1
<0.1
280 b
NA
I <10
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment P1an\19.EG_CSASUP\Tab1es\Tab1e 1-6 Surficial Unit GW Exceedances Page 2 of 4

TABLE 1-6
SURFICIAL UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
mV
mV
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
500
0.3*
1000
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
CW-3
06/07/2011
6.5
1 5.96
21
231
1.7
-51
154
47.7
NM
<0.5
<5
NA
<50
0.2
NA
NA
8
NA
3740
<5
39.5
<5
NA
NA
10.9
<0.1
171
NA
12.6
CW-3
10/03/2011
6.6
5.49
21
195
1.6
-162
43
1.88
NM
<0.5
<5
NA
<50
0.12
NA
NA
<5
NA
1070
<5
28.7
<5
NA
NA
7.2
<0.1
103
NA
<10
CW-3 DUP
10/03/2011
6.6
5.49
21
195
1.6
-162
43
1.88
NM
<0.5
<5
NA
<50
0.085
NA
NA
<5
NA
1020
<5
28.4
<5
NA
NA
7.9
<0.1
110
NA
<10
CW-3
03/05/2012
5.5
3.62
15
444
1.77
-58
147
7.38
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
822
<5
43.5
<5
NA
NA
58.6
<0.1
265
NA
<10
CW-3
06/04/2012
6.3
5.53
19
231
3.45
-79
126
7.59
NM
<0.5
<5
NA
<50
0.08
NA
NA
<5
NA
2120
<5
28
<5
NA
NA
12.8
<0.1
148
NA
<10
CW-3 DUP
06/04/2012
6.3
5.53
19
231
3.45
-79
126
7.59
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2180
<5
28.3
<5
NA
NA
12.4
<0.1
147
NA
<10
CW-3
10/01/2012
6.7
6.05
21
198
0.7
-102
103
1
NM
<0.5
<5
NA
<50
0.28
NA
NA
<5
NA
959
<5
17.8
<5
NA
NA
3.8
<0.1
107
NA
<10
CW-3
03/11/2013
5.5
4.56
15
626
1.48
101
306
8.3
NM
<1
<1
NA
143
<1
NA
NA
<5
NA
1610
<1
55
<5
NA
NA
120
<0.2
380
NA
<5
CW-3
06/11/2013
6.1
3.55
20
401
0.35
40
245
7.04
NM
<1
1.26
NA
96
<1
NA
NA
<5
NA
3290
<1
42
<5
NA
NA
64
<0.2
260
NA
6
CW-3
10/01/2013
6.5
6.63
21
237
0.44
-50
155
7.62
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
1540
<1
25
<5
NA
NA
12
<0.2
130
NA
7
CW-3
03/06/2014
6.2
1 4.18
11
553
2.68
1 59
264
9.77
NM
<1
<1
NA
170
<1
NA
NA
<5
NA
551
<1
45
<5
NA
NA
100
<0.2
330
NA
7
CW-3
06/04/2014
6.5
6.54
20
245
NM
-3
202
8.5
NM
<1
<1
NA
50
<1
NA
NA
<5
NA
1580
<1
31
<5
NA
NA
33
<0.2
180
NA
<5
CW-3 DUP
06/04/2014
6.5
6.54
20
245
NM
-3
202
8.5
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
1530
<1
30
<5
NA
NA
32
<0.2
180
NA
<5
CW-3
10/03/2014
6.6
8.13
21
202
0.36
-37
168
3.82
NM
<1
<1
NA
110
<1
NA
NA
<5
NA
1050
<1
43
<5
NA
NA
3.5
<0.2
120
NA
<5
CW-3
06/02/2015
6.5
6.97
20
295
0.4
-79
126
3.34
0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
1010
<1
46
<5
11.8
<1000
32
<0.2
170
0.636
<5
CW-3
10/14/2015
6.4
7.78
20
201
0.3
6
211
1.05
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
727
<1
26
<5
3.49
191
3.7
<0.2
110
0.323
<5
CW-3
12/02/2015
7.0
4.73
18
200
1.5
-33
173
3.1
ND
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
295
<1
11
<1
4.39
187
5.5
<0.2
120
0.338
<5
CW-3
01/12/2016
6.0
1 4.29
15
537
1.88
1 170
375
8.6
NM
I<1
<1
<1
159
<1
<0.03
NA
<1
<1
375
<1
66
1.96
46.7
311
130
<0.2
340
0.947
5
CW-3
03/07/2016
6.0
4.24
15
501
1.56
142
347
10.3
0
<1
<1
<1
125
<1
NA
NA
<5
1.01
740
<1
64
<5
39
306
120
<0.2
320
0.752
<5
MW-3
07/05/1990
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
ND
NA
NA
NA
NA
1500
ND
NA
NA
NA
NA
45
NA
300
NA
NA
MW-3
03/06/1991
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
1100
ND
NA
NA
NA
NA
50
NA
50
NA
NA
MW-3
11/06/1991
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
ND
NA
NA
NA
NA
5800
1.4
NA
NA
NA
NA
71
NA
320
NA
NA
MW-3
03/02/1992
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
1700
ND
NA
NA
NA
NA
49
NA
230
NA
NA
MW-3
07/07/1992
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
4400
3.6
NA
NA
NA
NA
48
NA
270
NA
NA
MW-3
03/10/1993
6.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
1500
<1
NA
NA
NA
NA
33
NA
250
NA
NA
MW-3
07/12/1993
7.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
<0.1
NA
NA
NA
NA
5500
<1
NA
NA
NA
NA
62
NA
290
NA
NA
MW-3
11/08/1993
6.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
400
<1
NA
NA
NA
NA
20
NA
220
NA
NA
MW-3
03/07/1994
6.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
830
<1
NA
NA
NA
NA
37
NA
217
NA
NA
MW-3
07/12/1994
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
2900
<1
NA
NA
NA
NA
48
NA
258
NA
NA
MW-3
10/31/1994
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
770
<1
NA
NA
NA
NA
41
NA
280
NA
NA
MW-3
03/07/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
900
<5
NA
NA
NA
NA
31
NA
288
NA
NA
MW-3
07/11/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.3
NA
NA
NA
NA
1700
<1
NA
NA
NA
NA
32
NA
240
NA
NA
MW-3
03/05/1996
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.4
NA
NA
<0.5
NA
NA
NA
NA
9000
1
NA
NA
NA
NA
NA
NA
134
NA
NA
MW-3
12/13/2006
6.9
3.90
64
0
NM
NM
NM
NM
NM
0.26
1.2
0.34
213
0.23
NA
NA
6.3
NA
2260
1.2
50.8
2.1
NA
NA
38.9
0.039
257
NA
11.7
MW-3
03/14/2007
6.7
3.44
60
NM
NM
NM
NM
NM
NM
<3
<2
<1
169
<1
NA
NA
<5
NA
3960
<3
49
9
NA
NA
50
<1
264
NA
15
MW-3
11/13/2007
7.0
4.69
71
503
NM
NM
NM
NM
NM
<2.5
<2
<1
484
<1
NA
NA
6
NA
1560
<5
44
<5
NA
NA
77
<1
281
NA
<5
MW-3
03/18/2008
6.8
3.82
62
436
NM
NM
NM
NM
NM
13
<5
<1
136
<2
NA
NA
5
NA
2040
<3
35
<5
NA
NA
55
<5
256
NA
11
MW-3
11/11/2008
6.8
4.26
68
491
NM
NM
NM
NM
NM
<2.5
<2
<1
477
<1
NA
NA
<5
NA
1840
<2
41
<5
NA
NA
42
<1
305
NA
1 33
MW-3
03/24/2009
6.9
4.59
59
462
NM
NM
NM
NM
NM
<1
<1
<1
393
<1
NA
NA
4
NA
1160
<1
29
3
NA
NA
47
<1
286
NA
33
MW-3
10/15/2009
6.8
3.80
72
487
NM
NM
NM
NM
NM
<1
1
<1
458
<1
NA
NA
4
NA
1580
<1
36
3
NA
NA
48
<1
264
NA
8
MW-3
03/17/2010
7.0
4.41
57
443
NM
NM
NM
NM
NM
<1
<1
<1
142
<1
NA
NA
4
NA
1800
<1
26
4
NA
NA
48
<1
259
NA
3
MW-3
06/05/2015
6.5
3.77
20
516
0.2
-189
16
4.76
3.25
<1
5.39
<1
791
<1
NA
NA
<1
<1
2390
<1
63
<1
21.2
688
36
<0.2
310
0.663
<5
MW-3
12/01/2015
7.0
3.20
16
495
0.6
-72
133
9.1
NM
<1
3.95
<1
418
<1
<0.03
NA
<1
<1
1540
<1
44
<1
12.9
559
44
<0.2
300
0.675
<5
MW-3
01/11/2016
7.3
3.08
16
428
0.42
-25
181
8.93
1
<1
1.46
<1
1 177
<1
<0.03
NA
<1
<1
908
<1
42
<1
8.42
509
57
<0.2
280
1 0.322
1200
MW-3 DUP
O1/11/2016
7.3
3.08
16
428
0.42
-25
181
8.93
1
<1
1.77
<1
209
<1
<0.03
NA
<1
<1
851
<1
43
<1
9.07
522
54
<0.2
300
0.351
110
MW-5
03/19/1990
3.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.16
NA
NA
NA
NA
7700
ND
NA
NA
NA
NA
41
NA
120
NA
NA
MW-5
11/05/1990
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
1400
1.3
NA
NA
NA
NA
6
NA
54
NA
NA
MW-5
03/06/1991
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
16000
1.2
NA
NA
NA
NA
44
NA
60
NA
NA
MW-5
07/01/1991
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
730
ND
NA
NA
NA
NA
3.2
NA
80
NA
NA
MW-5
11/06/1991
6.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.1
NA
NA
NA
NA
600
2.2
NA
NA
NA
NA
1.9
NA
200
NA
NA
MW-5
03/02/1992
5.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
14000
ND
NA
NA
NA
NA
37
NA
58
NA
NA
MW-5
07/07/1992
4.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
1200
ND
NA
NA
NA
NA
4
NA
50
NA
NA
MW-5
11/04/1992
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
0.2
NA
NA
NA
NA
4000
<1
NA
NA
NA
NA
15
NA
87
NA
NA
MW-5
03/10/1993
5.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
14000
<1
NA
NA
NA
NA
31
NA
90
NA
NA
MW-5
07/12/1993
7.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
960
<1
NA
NA
NA
NA
3.7
NA
66
NA
NA
MW-5
11/08/1993
4.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.2
NA
NA
NA
NA
5300
<1
NA
NA
NA
NA
14
NA
69
NA
NA
MW-5
03/07/1994
4.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.1
NA
NA
NA
NA
13000
<1
NA
NA
NA
NA
38
NA
75
NA
NA
MW-5
07/12/1994
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.1
NA
NA
NA
NA
1600
<1
NA
NA
NA
NA
5.6
NA
59
NA
NA
MW-5
03/07/1995
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.6
NA
NA
<0.1
NA
NA
NA
NA
16000
<5
NA
NA
NA
NA
41
NA
109
NA
NA
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment P1an\19.EG_CSASUP\Tab1es\Tab1e 1-6 Surficial Unit GW Exceedances Page 3 of 4

TABLE 1-6
SURFICIAL UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
mV
mV
NTUs
mg/l
ug/l
ug/I
ug/1
ug/I
ug/1
ug/1
ug/I
ug/I
ug/I
ug/I
ug/I
ug/l
ug/I
mg/I
ug/I
mg/1
ug/I
mg/1
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07A
0.07A
SO
1*
300
15
50
100
NE
NE
250
0.2*
Soo
0.3*
1000
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
MW-5
07/11/1995
5.4
1 NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
<0.1
NA
NA
NA
NA
7200
<1
NA
NA
NA
NA
18
NA
70
NA
NA
MW-5
03/05/1996
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
3.7
NA
NA
<0.5
NA
NA
NA
NA
16000
1
NA
NA
NA
NA
NA
NA
113
NA
NA
MW-5
03/09/1998
4.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<3
NA
NA
<0.5
NA
NA
NA
NA
15000
<2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-5
12/13/2006
5.2
3.49
64
0
NM
NM
NM
NM
NM
0.19
3.4
<0.051
193
<0.024
NA
NA
0.75
NA
11300
0.27
21
0.38
NA
NA
21.9
0.023
122
NA
1.9
MW-5
03/14/2007
4.8
3.45
58
NM
NM
NM
NM
NM
NM
<3
<2
<1
132
<1
NA
NA
<5
NA
16000
<3
33
<5
NA
NA
34
<1
128
NA
<5
MW-5
11/13/2007
4.7
4.12
69
282
NM
NM
NM
NM
NM
<2.5
<2
<1
217
<1
NA
NA
<5
NA
2560
<5
6
<5
NA
NA
22
<1
147
NA
7
MW-5
03/18/2008
4.7
3.49
58
196
NM
NM
NM
NM
NM
2
<5
<1
89
3
NA
NA
<5
NA
14600
<3
31
<5
NA
NA
37
<5
90
NA
13
MW-5
11/11/2008
5.0
3.93
68
299
NM
NM
NM
NM
NM
<2.5
<2
<1
261
<1
NA
NA
12
NA
4760
<2
9
<5
NA
NA
16
<1
157
NA
23
MW-5
03/24/2009
5.0
3.88
58
269
NM
NM
NM
NM
NM
<1
2
<1
176
<1
NA
NA
6
NA
30800
2
44
2
NA
NA
37
<1
157
NA
14
MW-5
10/15/2009
4.9
3.98
71
287
NM
NM
NM
NM
NM
<1
1
<1
187
<1
NA
NA
3
NA
4890
<1
11
2
NA
NA
34
<1
147
NA
6
MW-5
03/17/2010
5.0
3.74
55
214
NM
NM
NM
NM
NM
<1
2
<1
47
<1
NA
NA
3
NA
21700
<1
35
<1
NA
NA
53
<1
76
NA
28
MW-5
06/09/2015
4.9
4.71
19
273
0.53
35
240
4.9
4
<1
2.48
<1
247
<1
NA
0.016
<1
1.06
11700
<1
23
<1
38.9
24
50
<0.2
150
0.4,
<5
MW-5
12/01/2015
5.1
3.78
17
167
0.24
241
446
13
4.5
<1
2.41
<1
96
<1
<0.03
NA
1.25
1.56
14900
<1
26
<1
14.7
26
60
<0.2
71
3.63
<5
MW-5
01/11/2016
5.1
3.45
14
193
0.47
163
368
4.78
5.5
<1
1.88
<1
73
<1
<0.03 M1
NA
<1
2.19
24000
<1
46
<1
13.3
40
71
<0.2
90
0.68
<5
MW-6 (S&ME)
03/21/2012
7.0
NM
21
366
0.16
68K250
81.8
NM
<1
2.5
NA
76.5
<0.1
NA
NA
<1
NA
12600
<1
36.1
<1
NA
NA
37.7
<1
223
NA
<5
MW-6
06/09/2015
6.7
6.12
18
375
0.2
-103
1.9
4.5
<1
2.38
<1
108
<1
NA
NA
<1
<1
12700
<1
39
<1
13
330
46
<0.2
230
0.448
<5
MW-6
12/01/2015
5.8
3.61
17
763
0.84
45
8.98
0
<1
<1
<1
616
<1
<0.03
NA
<1
1.34
4360
<1
217
1.55
36.2
1450
270
0.56
510
0.41
<5
MW-6 DUP
12/01/2015
5.8
3.61
17
763
0.84
45
8.98
0
<1
<1
<1
636
<1
<0.03
NA
<1
1.21
4420
<1
190
1.02
36.7
1500
280
0.206
530
0.342
<5
MW-6
01/11/2016
6.1
3.33
16
500
0.58
71
9.07
0
<1
<1
<1
580
<1
<0.03
NA
<1
2.2
4490
<1
76
1.64
26.5
1060
180
<0.2
350
0.544
<5
MW-6
03/07/2016
6.8
2.64
14
392
2.32
-31
23
4.5
<1
1.43
<1
108
<1
<0.03
NA
<1
<1
7970
<1
43
<1
8.65
399
50
<0.2
240
<0.3
<5
MW-33S (S&ME)
03/01/2012
5.2
NM
15
156
0.21
142
NM
5.9
NM
<1
<1
NA
<50
<0.1
NA
NA
<1
NA
4970
<1
170
2.6
NA
NA
NA
<1
NA
NA
17.7
MW-33S (S&ME)
05/08/2012
4.9
NM
18
286
0.33
5
NM
4.01
NM
<1
1.5
NA
<50
<0.1
NA
NA
<1
NA
26300
<1
263
4.3
NA
NA
107
NA
213
NA
8
MW-33S
06/08/2015
5.0
6.88
20
170
0.2
30
235
4.12
7
<1
<1
<1
<50
<1
NA
0.014
1.06
1.74
1 6780
<1
73
1.11
3.17
66
50
<0.2
120
1.5
<5
MW-44SA(S&ME)
03/09/2012
6.8
NM
23
1034
0.47
127
NM
32.3
NM
<1
733
NA
1170
<0.2
NA
NA
13.8
NA
7260
3.6
273
11.6
NA
NA
186
<1
677
NA
10.5
MW-44SA(S&ME)
05/07/2012
6.4
NM
22
1241
0.43
-104
NM
4.11
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
257
NA
890
NA
NA
MW-44SA
06/04/2015
6.2
23.27
21
997
0.68
-105
100
16.1
3
<1
74.4
<1
1620
<1
NA
0.037
2.71
3.15
4430
<1
172
1.87
34
2050
230
<0.2
690
3.8
51
MW-44SA
12/02/2015
6.4
23.10
19
1054
0.64
147
352
7.7
3
<1
89
<1
1520
<1
<0.03
NA
<1
2.12
6630
<1
208
<1
35.9
2080
270
<0.2
750
2.09
<5
MW-44SA
01/11/2016
6.1
21.38
12
847
0.7
37
242
4.4
2
<1
73.3
<1
1490
<1
<0.03
NA
1.07
2.76
5710
<1
200
<1
32.4
1770
270
<0.2
650
2.25
6
MW-52 (S&ME)
03/21/2012
5.1
NM
17
342
0.69
438
NM
0.98
NM
<15
<10
NA
354
<1
NA
NA
<5
NA
<40
<10
83.2
<5
NA
NA
32.5
<15
181
NA
<20
MW-52(S&ME)
05/08/2012
4.3
NM
18
313
0.32
205
NM
0.31
NM
<1
<1
NA
444
<0.1
NA
NA
<1
NA
1 199
<1
63.3
<1
NA
NA
66.4
NA
192
NA
<5
Private Water Supply
W-2 (Vendor)
03/18/2015
5.3
NM
15
153
8.33
NM
NM
<1
NM
11
<5
11
7
<2
<100
NA
<5
<1
27
<3
15
<5
4.2
61
2.99
<0.2
109
<0.3
35
W-2 (Duke)
03/18/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
27
<1
16
<5
4.18
62
3.3
<0.2
110
<0.3
36
W-6 (Vendor)
04/28/2015
7.7
NM
19
237
8.61
NM
NM
<1
NM
<2
<5
<1
7
<2
<100
NA
<5
<5
124.438
<3
<5
<5
3.97
263.2646
28.1
<0.2
161
0.5
16
W-6 (Duke)
04/28/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
<1
2.21
<1
<50
<1
NA
NA
<5
1.51
53
<1
<5
<5
3.99
245
27
<0.2
160
0.335
14
Notes:
- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
ug/I = microgram per liter NTU = nephelometric turbidity unit
Eh = Redox potential S.U. = Standard Unit
NE = Not Established umhos/cm = micro mhos per centimeter
DUP = Duplicate DO = Dissolved Oxygen
Spec Cond = Specific Conductance ORP = Oxidation Reduction Potential
Temp = Temperature NM = Not Measured
< = concentration not detected at or above the reporting limit.
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.
B = Target analyte detected in method blank at or above the reporting limit.
MI = Matrix spike recovery exceeds QC limits.
S = associated calibration check did not meet specified criteria.
= NC DHHS Health Screening Level
mg/I = milligrams per liter
mV = millivolts
Deg C = Degree Celsius
ft = feet
ND = Not Detected
NA = Not Analyzed
Prepared by: BER Checked by: VTV
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-6 Surficial Unit GW Exceedances Page 4 of 4

TABLE 1-7
LOWER YORKTOWN UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
OR P
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Boron
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nitrate
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Reporting Units
S.U.
ft
Deg C
u/cm
mg/I
mV
mV
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/1
mg/1
ug/I
mg/I
ug/I
mg/l
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
700
0.07A
0.07A
10
1*
300
35
50
10
NE
NE
250
0.2*
500
0.3*
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
Background
BW-2I
03/05/2015
7.0
7.18
11
291
0.29
-73
132
89.9
1
<1
1.8
<50
NA
NA
7.08
<1
2090
1.29
35
NA
12.2
229
13
<0.2
200
8.88
BW-2I
06/04/2015
7.3
10.11
18
285
0.16
-115
90
413
<0.5
<1
3.89
<50
NA
NA
30.8
1.31
7850
8.99
50
NA
19
255
2.1
<0.2
440
36.6
BW-2I
09/30/2015
7.7
13.48
21
295
0.2
-201
4
9.99
NM
<1
1.01
<50
NA
NA
7.81
<1
882
1.63
22
NA
15.5
233
NA
<0.2
NA
11.4
BW-2I
12/02/2015
7.3
9.22
18
296
0.1
-52
153
710
NM
<1
6.5
74
0.44
NA
67
2.63
12600
20.9
64
NA
30.4
272
0.26
<0.2
970
79
BW-2I
01/12/2016
7.2
7.31
13
321
0.27
-154
51
320.8
0
<1
4.21
54
0.18
NA
26.1
1.53
5690
10.5
47
NA
21.8
223
0.24
<0.2
320
33.7
BW-2I
03/07/2016
7.2
6.84
16
251
0.16
-180
25
346
NM
<1
4.26
<50
0.18
NA
21.4
1.53
6030
10.1
47
NA
15.2
231
<0.1
<0.2
360
27.9
BW-3I
03/04/2015
5.8
3.01
18
92
0.09
-20
186
58.3
5.5
<1
9.07
<50
NA
NA
2.78
<1
5790
<1
60
NA
5.09
51
0.41
<0.2
86
5.69
BW-3I
06/03/2015
5.7
5.27
19
67
0.1
-96
109
20.7
2.5
<1
<1
<50
NA
NA
1.16
<1
2280
<1
21
NA
4.28
41
0.12
<0.2
57
2.46
BW-3I
12/02/2015
5.5
3.59
18
76
0.88
-5
200
24.5
1
<1
<1
<50
0.047
NA
1.18
<1
2200
<1
19
NA
6.07
36
0.89
<0.2
72
2.57
BW-3I
01/11/2016
5.5
3.15
16
88
0.22
70
275
9.92
0.5
<1
<1
<50
<0.03
NA
<1
<1
1720
<1
19
NA
5.7
48
0.18
<0.2
47
2.04
BW-3I
03/07/2016
5.6
3.79
16
77
0.19
73
278
9.86
1.5
<1
<1
<50
0.049
NA
1.34
<1
2070
<1
20
NA
6
41
1.3
<0.2
75
2.61
Lower Yorktown
AW-lI
03/03/2015
6.4
14.56
18
82
0.2
89
294
5.03
4.5
<1
<1
<50
NA
NA
<1
<1
6600
<1
98
NA
1.45
48
3.8
<0.2
30
0.41
AW-lI
06/02/2015
6.4
15.83
22
85
0.4
-174
31
4.36
2.7
<1
<1
<50
NA
NA
<1
<1
8400
<1
146
NA
1.19
50
3.2
<0.2
53
<0.3
AW-2I
04/02/2015
7.2
18.21
21
267
0.48
15
220
14.8
<0.5
<1
<1
<50
NA
NA
<1
<1
276
<1
53
NA
4.92
229
8.3
<0.2
160
0.442
AW-2I
06/03/2015
7.1
19.26
20
289
0.96
-142
63
38.3
<0.5
<1
<1
<50
NA
NA
<1
<1
863
<1
73
NA
4.67
257
38
<0.2
170
0.637
AW-3I
03/04/2015
7.0
3.70
16
252
0.72
44
249
6.97
<0.5
<1
<1
<50
NA
NA
<1
<1
308
<1
164
NA
4.76
138
2.9
<0.2
130
0.7
AW-3I
06/04/2015
6.7
5.30
19
239
0.3
-103
102
2.63
>7
<1
6.14
<50
NA
NA
<1
<1
5650
<1
632
NA
4.92
131
3.5
<0.2
110
0.392
MW-2
07/01/1991
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
NA
ND
ND
NA
NA
NA
NA
4.2
NA
640
NA
MW-2
11/06/1991
6.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
NA
400
17
NA
NA
NA
NA
4.1
NA
190
NA
MW-2
03/10/1993
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
340
1.3
NA
NA
NA
NA
4.8
NA
230
NA
MW-2
07/12/1993
7.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
330
<1
NA
NA
NA
NA
3.6
NA
160
NA
MW-2
07/12/1994
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
430
1.8
NA
NA
NA
NA
3.5
NA
190
NA
MW-2
03/07/1995
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
840
<5
NA
NA
NA
NA
4.1
NA
225
NA
MW-2
07/11/1995
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
7800
<1
NA
NA
NA
NA
4
NA
142
NA
MW-2
03/18/1997
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
560
3
NA
NA
NA
NA
4
NA
142
NA
MW-2
12/13/2006
7.4
4.40
65
0
NM
NM
NM
NM
NM
0.27
0.11
11.1
NA
NA
0.4
NA
452
0.23
20.6
0.05
NA
NA
9.62
0.018
127
NA
MW-2
03/14/2007
7.2
1.88
64
NM
NM
NM
NM
NM
NM
<3
ND
<5
NA
NA
<5
NA
2040
<3
26
0.03
NA
NA
10
<1
144
NA
MW-2
11/13/2007
7.1
6.25
68
267
NM
NM
NM
NM
NM
<2.5
ND
18
NA
NA
<5
NA
673
<5
21
<0.02
NA
NA
16
<1
144
NA
MW-2
03/18/2008
7.0
3.79
64
263
NM
NM
NM
NM
NM
<2
ND
21
NA
NA
5
NA
3180
<3
21
<0.08
NA
NA
13
<5
103
NA
MW-2
11/11/2008
7.7
4.65
67
263
NM
NM
NM
NM
NM
<2.5
ND
34
NA
NA
<5
NA
674
5
19
<0.02
NA
NA
11
<1
149
NA
MW-2
03/24/2009
7.5
3.55
63
269
NM
NM
NM
NM
NM
<1
ND
52
NA
NA
4
NA
1340
<1
18
<0.02
NA
NA
13
<1
167
NA
MW-2
10/15/2009
7.6
4.02
67
266
NM
NM
NM
NM
NM
<1
ND
11.6
NA
NA
3
NA
699
<1
18
<0.02
NA
NA
14
<1
151
NA
MW-2
03/17/2010
7.4
4.10
62
268
NM
NM
NM
NM
NM
<1
ND
<10
NA
NA
4
NA
1110
<1
18
<0.02
NA
NA
15
<1
147
NA
MW-2
06/05/2015
7.5
3.04
22
298
0.26
-140
65
15.5
0.5
<1
<1
<50
NA
NA
<1
<1
2530
<1
38
NA
2.99
300
24
<0.2
170
0.304
MW-2
12/01/2015
7.6
2.46
18
289
1.4
64
269
3.79
0
<1
<1
<50
<0.03 M1
NA
<1
<1
597
<1
25
NA
2.87
289
25
0.44
<25
<0.3
MW-2
01/12/2016
7.6
2.13
14
276
0.7
-63
142
9.94
0
<1
<1
<50
<0.03
NA
<1
I <1
1080
<1
71
NA
2.94
294
26
<0.2
160
<0.3
MW-4
10/31/1994
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
440
<15
NA
NA
NA
NA
42
NA
214
NA
MW-4
03/07/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
410
<15
NA
NA
NA
NA
36
NA
213
NA
MW-4
07/11/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
840
<15
NA
NA
NA
NA
34
NA
196
NA
MW-4
12/13/2006
6.3
3.85
65
1
NM
NM
NM
NM
NM
0.21
0.4
1340
NA
NA
0.32
NA
86.2
0.11
223
0.05
NA
NA
93.3
0.19
339
NA
MW-4
03/14/2007
5.7
3.95
65
NM
NM
NM
NM
NM
NM
<3
<2
1150
1 NA
NA
<5
NA
96
<15
174
0.03
NA
NA
98
<2
341
NA
MW-4
11/13/2007
5.9
4.38
68
705
NM
NM
NM
NM
NM
<2.5
<2
1670
NA
NA
<5
NA
40
<15
168
<10
NA
NA
175
<2
383
NA
MW-4
03/18/2008
5.8
3.86
64
691
NM
NM
NM
NM
NM
3
<5
1090
NA
NA
5
NA
39
<15
129
<10
NA
NA
125
<2
390
NA
MW-4
11/11/2008
6.2
4.20
67
662
NM
NM
NM
NM
NM
<2.5
<2
1220
NA
NA
<5
NA
101
<15
157
<10
NA
NA
106
<2
374
NA
MW-4
03/24/2009
6.1
4.13
63
694
NM
NM
NM
NM
NM
<1
2
1420
NA
NA
2
NA
97
<15
177
<10
NA
NA
118
<2
365
NA
MW-4
10/15/2009
6.1
4.45
68
691
NM
NM
NM
NM
NM
<1
<1
1250
NA
NA
4
NA
81
<15
199
<10
NA
NA
133
<2
403
NA
MW-4
03/17/2010
5.9
4.04
1 62
675
NM
NM
NM
NM
NM
<1
<1
1170
NA
NA
3
NA
20
<15
182
<10
I NA
NA
129
<2
388
NA
MW-4
06/05/2015
6.0
4.84
18
667
0.38
51
256
2.45
<0.5
<1
<1
1640
NA
NA
<1
6.25
167
<1
576
NA
60.2
403
140
0.352
400
<0.3
MW-4
09/29/2015
5.9
6.40
21
675
1.8
176
381
1.77
NM
<1
<1
1720
NA
NA
<1
6.77
172
<1
597
NA
63.4
367
NA
0.509
NA
0.382
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment P1an\19.EG_CSASUP\Tab1es\Tab1e 1-7 Lower Yorktown Unit GW Exceedances Page 1 of 2

TABLE 1-7
LOWER YORKTOWN UNIT GROUNDWATER EXCEEDANCES
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
OR P
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Boron
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nitrate
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Reporting Units
S.U.
ft
Deg C
u/cm
mg/I
mV
mV
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/1
mg/1
ug/I
mg/I
ug/I
mg/l
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
700
0.07A
0.07A
10
1*
300
35
50
10
NE
NE
250
0.2*
500
0.3*
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
MW-4 DUP
09/29/2015
5.9
6.40
21
675
1.8
1 176
381
1.77
NM
<1
<1
1710
NA
NA
<1
6.77
153
1 <1
591
NA
1 63.8
361
1 NA
0.411
NA
0.48
MW-4
12/01/2015
6.3
4.35
19
760
1.42
119
324
6.5
0
<1
<1
1830
<0.03
NA
5.35
6.57
163
<1
483
NA
59.8
423
150
0.316
440
0.374
MW-4
01/11/2016
6.5
4.05
15
813
0.31
144
349
4.51
0
<1
<1
2200
<0.03
NA
<1
5.68
145
<1
587
NA
53.6
584
160
0.417
500
<0.3
MW-4
04/20/2016
6.3
4.15
18
757
0.3
133
338
3.24
NM
<1
<1
1930
NA
NA
<1
3.91
NA
<1
NA
NA
NA
NA
140
0.496
410
NA
MW-4 DUP
04/20/2016
6.3
4.15
18
757
0.3
133
338
3.24
NM
<1
<1
1890
NA
NA
<1
4.12
NA
<1
NA
NA
NA
NA
150
0.346
420
NA
MW-7 (S&ME)
03/21/2012
7.5
NM
21
329
0.57
74
NM
23.9
NM
<1
<1
<50
NA
NA
16.4
NA
1440
<1
65
11.1
NA
NA
20.9
<1
202
NA
MW-7
06/08/2015
7.4
5.39
19
363
0.4
-232
-27
3.97
1.2
<1
<1
<50
NA
0.023
<1
<1
909
<1
73
NA
10.2
333
29
<0.2
240
<0.3
MW-7
12/02/2015
7.2
2.73
19
314
0.59
68
273
2.2
1
<1
<1
<50
<0.03
NA
<1
<1
635
<1
35
NA
9.49
278
20
<0.2
190
<0.3
MW-7
01/12/2016
7.3
2.36
14
293
0.36
-6
199
3.76
0.5
<1
<1
<50
<0.03
NA
<1
<1
677
<1
38
NA
8.81
276
19
<0.2
190
<0.3
MW-8I (S&ME)
02/29/2012
6.6
NM
22
1239
0.17
1
NM
1.73
NM
<1
1.6
1100
NA
NA
2.9
NA
1920
<1
139
<0.1
NA
NA
242
<1
826
NA
MW-8I (S&ME)
05/07/2012
5.9
NM
22
1135
0.1
-105
NM
4.18
NM
<1
3.5
1040
NA
NA
6.2
NA
2170
<1
ISO
<0.1
NA
NA
310
<1
788
NA
MW-8I
06/04/2015
5.3
29.32
20
844
0.45
-86
119
16.6
1
<1
9.88
1080
NA
0.03
2.29
<1
1880
<1
147
NA
45.1
1220
250
<0.2
560
3.64
MW-8I
09/29/2015
6.2
31.69
25
630
0.8
120
325
1.71
NM
3.95
7.09
737
NA
NA
2.67
<1
229
<1
58
NA
34.9
973
NA
0.254
NA
2.4
MW-8I
12/01/2015
5.5
29.26
19
803
1.56
-37
168
6.58
1.5
<1
10.7
1070
<0.03
NA
1.06
<1
1290
<1
136
NA
43.8
1160
310
<0.2
540
3.44
MW-8I
01/11/2016
5.5
27.75
13
794
0.4
41
246
1.3
0
<1
11.5
1140
<0.03
NA
<1
<1
1400
<1
153
NA
44
1220
280
<0.2
450
3.62
MW-33I (S&ME)
03/09/2012
6.9
NM
19
1218
0.08
25
NM
2.55
NM
<1
<1
<50
NA
NA
<1
NA
12400
<1
144
<0.1
NA
NA
481
<1
974
NA
MW-33I (S&ME)
05/08/2012
6.3
NM
19
1089
0.32
-88
NM
1.48
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
<0.1
NA
NA
585
NA
962
NA
MW-33I
06/09/2015
6.9
7.05
19
887
0.2
-70
135
1.26
NM
<1
<1
<50
NA
NA
<1
<1
7770
<1
115
NA
6.79
1080
220
<0.2
620
<0.3
MW-41I (S&ME)
03/20/2012
7.6
5.75
19
294
0.06
-35
NM
8.01
NM
<15
<10
<50
NA
NA
<5
NA
966
<10
29.4
<0.05
NA
NA
11.5
<15
477
NA
MW-41I
12/02/2015
7.6
6.40
18
306
0.2
-116
89
7.4
0.5
<1
<1
<50
<0.03
NA
<1
<1
1390
<1
26
1 NA
2.8
317
18
<0.2
190
0.432
MW-41I
01/12/2016
7.3
5.62
17
295
0.37
-29
177
6.4
0.5
<1
<1
<50
<0.03
NA
<1
<1
554
<1
23
NA
2.85
314
17
<0.2
180
<0.3
MW-44I
06/03/2015
7.3
23.75
20
451
0.32
-204
1
6.19
0.5
<1
<1
<50
NA
NA
<1
<1
450
<1
31
NA
4.68
476
32
<0.2
280
0.542
MW-44I
12/01/2015
7.3
23.40
19
478
0.32
6
211
5.57
0.25
<1
<1
<50
<0.03
NA
<1
<1
469
<1
32
NA
4.68
499
45
<0.2
290
0.446
MW-44I
01/11/2016
7.2
2.70
15
449
0.4
-124
81
9.2
0.5
<1
<1
<50
<0.03
NA
<1
<1
497
<1
34
NA
4.46
510
43
<0.2
660
0.382
MW-49I(S&ME)
03/20/2012
6.9
20.83
22
1021
0
37
NM
7.64
NM
<15
<10
2860
NA
NA
<5
NA
9940
<10
128
<0.25
NA
NA
60.5
<15
619
NA
MW-49I (S&ME)
05/07/2012
6.7
NM
20
937
0.11
-124
NM
3.56
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.089
NA
NA
89.8
NA
619
NA
MW-49I
06/09/2015
6.9
23.49
22
979
0.38
-210
-5
4.82
3
<1
<1
3400
NA
NA
<1
<1
6420
<1
111
NA
64.6
749
90
<0.2
600
0.422
MW-49I
12/02/2015
6.9
23.04
20
991
0.52
4
209
2.29
3.75
<1
<1
3360
<0.03
NA
<1
<1
6400
<1
108
NA
64.2
717
97
<0.2
610
<0.3
MW-49I
01/12/2016
7.1
21.93
10
975
0.7
-119
86
1.2
2
<1
<1
3520
<0.03
NA
<1
<1
6170
<1
108
NA
61.6
755
94
<0.2
600
0.362
MW-53I (S&ME)
03/07/2012
9.0
NM
19
4359
0.32
-85
NM
9.8
NM
1.3
2.2
<50
NA
NA
2.2
NA
349
<1
32
<0.05
NA
NA
77.9
<1
297
NA
MW-53I(S&ME)
05/08/2012
10.0
NM
18
374
0.2
-142
NM
0
NM
<1
<1
<50
NA
NA
<1
NA
1620
<1
49.7
0.23
NA
NA
58.9
NA
240
NA
MW-53I
06/01/2015
7.8
5.17
20
305
0.2
-301
-96
3.99
1.5
<1
<1
<50
NA
NA
<1
<1
2660
<1
31
NA
8.81
275
27
<0.2
180
<0.3
MW-55I (S&ME)
02/29/2012
6.9
NM
18
554
0
70
NM
3.55
NM
<1
<1
<50
NA
NA
1.8
NA
376
<1
161
1.5
NA
NA
36.8
<1
<5
NA
MW-55I (S&ME)
03/09/2012
6.6
NM
17
638
0.16
228
NM
9.1
NM
<1
1
1040
NA
NA
4.5
NA
1230
<1
304
<0.05
NA
NA
44.4
<1
420
NA
MW-55I (S&ME)
05/08/2012
6.3
NM
18
590
0.38
-2
NM
0.34
NM
<1
<1
744
NA
NA
<1
NA
426
<1
144
0.054
NA
NA
36.2
NA
366
NA
MW-55I
08/19/2015
6.2
5.14
20
521
0.19
118
323
1
NM
<1
<1
498
NA
NA
<1
1.61
70
<1
63
NA
34
354
45
<0.2
290
<0.3
MW-55I
12/01/2015
6.7
2.85
1 18
647
0.2
-62
143
1 7.1
NM
<1
<1
745
<0.03
NA
<1
<1
655
<1
53
NA
32.1
499
61
<0.2
370
0.463
MW-55I
01/11/2016
6.2
2.57
16
500
0.25
133
338
5.15
0
<1
<1
584:4
<0.03
NA
<1
2.68
329
<1
64
NA
35.5
349
49
<0.2
300
<0.3
MW-55I
03/07/2016
6.2
2.17
17
505
0.36
71
276
0.4
0
<1
<1
658
<0.03
NA
<1
2.36
42
<1
60
NA
1 36.5
355
44
<0.2
320
<0.3
Notes:
0 - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
ug/1 = microgram per liter DO = Dissolved Oxygen
Eh = Redox potential ORP = Oxidation Reduction Potential
NE = Not established
DUP = Duplicate
NTU = nephelometric turbidity unit
S.U. = Standard Unit
Spec Cond = Specific Conductance umhos/cm = micro mhos per centimeter
Temp = Temperature mg/I = milligrams per liter
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.
M1 = Matrix spike recovery exceeded QC limits.
< = concentration not detected at or above the reporting limit.
= NC DHHS Health Screening Level
my = millivolts
Deg C = Degree Celsius
ft = feet
ND = Not Detected
NM = Not measured
NA = Not analyzed
Prepared by: BER Checked by: VTV
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-7 Lower Yorktown Unit GW Exceedances Page 2 of 2

TABLE 1-8
PEE DEE UNIT GROUNDWATER EXCEEDANCES
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Chromium
(Hexavalent)
Chromium
Iron
Manganese
Sodium
Strontium
Total
Dissolved
Solids
Vanadium
Reporting Units
S.U.
ft
Deg C
umh s
mg/l
mV
mV
NTUs
mg/1
ug/1
ug/1
ug/I
ug/1
mg/I
ug/1
mg/I
ug/1
ISA NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
0.07^
10
300
50
NE
NE
500
0.3*
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
Background
BW-2D
03/05/2015
12.5
27.82
10
3609
1.14
-31
174
4.55
<0.5
NA
24.5
17
<5
8.56
1100
740
4.75
BW-2D
06/03/2015
11.5
28.63
20
1040
0.4
-257
-52
2
<0.5
NA
1.32
<10
<5
8.45
454
240
19.3
BW-3D
03/05/2015
7.2
1.08
17
182
0.22
-111
94
6.19
0.5
NA
<1
721
31
6.94
157
110
<0.3
BW-3D
06/03/2015
7.3
2.41
19
193
0.1
-251
-46
2.3
2
NA
<1
1090
41
7.32
156
120
<0.3
BW-3D
12/02/2015
7.3
1.00
18
191
0.2
-115
90
0.48
1
<0.03
<1
1550
39
7.27
164
110
<0.3
BW-3D DUP
12/02/2015
7.3
1.00
18
191
0.2
-115
90
0.48
1
<0.03
<1
1360
36
7.26
156
140
<0.3
BW-3D
01/11/2016
6.6
0.70
15
173
0.33
-57
148
1
0.5
0.076
<1
837
25
6.99
156
110
<0.3
BW-3D
03/07/2016
7.2
0.94
17
178
0.24
-72
133
1.34
1
<0.03
<1
1040
27
7.2
162
120
<0.3
Pee Dee
AW-1D
03/03/2015
9.3
21.86
15
179
0.31
32
237
3.08
<0.5
NA
<1
77
<5
7.66
142
96
0.648
AW-1D
06/02/2015
8.3
22.88
23
169
0.2
-188
17
1.23
0.5
NA
<1
349
33
4.83
146
110
<0.3
AW-2D
03/03/2015
8.7
20.68
12
324
0.36
-75
131
17.6
<0.5
NA
<1
77
5
7.2
490
210
1.53
AW-2D
06/03/2015
7.8
21.68
21
321
0.36
-228
-23
4.47
<0.5
NA
<1
57
12
7.66
340
210
0.317
AW-3D
03/04/2015
8.3
5.51
17
258
0.14
-294
-89
7.34
0.5
NA
<1
613
77
3.19
227
150
0.85
AW-3D
06/04/2015
7.5
6.04
19
261
0.28
-118
87
2.9
1
NA
<1
2050
88
2.7
237
150
<0.3
MW-8D (S&ME)
02/29/2012
1.2
NM
20
261
0.17
70
NM
3.1
NM
NA
<1
583
33.7
NA
NA
176
NA
MW-8D (S&ME)
05/07/2012
6.8
NM
21
200
0.19
-90
NM
3.73
NM
NA
1.1
1390
48.1
NA
NA
160
NA
MW-33D (S&ME)
03/09/2012
7.2
NM
20
807
0.12
-255
NM
3.1
NM
NA
3.1
9580
165
NA
NA
520
NA
MW-33D (S&ME)
05/08/2012
6.7
NM
19
700
0.23
-110
NM
33.3
NM
NA
NA
NA
NA
NA
NA
530
NA
MW-41D (S&ME)
03/20/2012
7.1
16.61
19
294
0.06
41
NM
1.47
NM
NA
<5
2970
70.6
NA
NA
173
NA
MW-44D
03/02/2012
7.0
NM
24
260
0
-36
NM
1.27
NM
NA
2.4
1100
34.8
NA
NA
176
NA
MW-49D (S&ME)
03/19/2012
7.2
NM
22
292
0
75
NM
9.2
NM
NA
<5
314
50.6
NA
NA
184
NA
MW-53D (S&ME)
05/08/2012
9.7
NM
18
394
0.27
-125
NM
4.08
NM
NA
<1
1710
71.3
NA
NA
268
NA
MW-53D
06/01/2015
6.9
10.01
19
276
0.72
-137
68
7.31
<0.5
NA
<1
724
27
5.4
263
170
<0.3
MW-54D (S&ME)
03/01/2012
7.3
NM
19
272
0.05
-234
NM
1.55
NM
NA
<1
711
28.6
NA
NA
NA
NA
MW-54D (S&ME)
05/08/2012
8.8
NM
18
260
0.19
-76
NM
0
NM
NA
<1
497
26.5
NA
NA
170
NA
MW-55D (S&ME)
02/29/2012
7.2
NM
18
256
0.07
-247
NM
2.38
NM
NA
<1
1450
58.3
NA
NA
141
NA
MW-55D (S&ME)
03/09/2012
7.6
NM
17
304
0.2
40
NM
10.1
NM
NA
1.2
1320
112
NA
NA
177
NA
MW-55D (S&ME)
05/08/2012
7.2
NM
18
251
0.31
-160
NM
0.36
NM
NA
<1
4030
119
NA
NA
160
NA
MW-55D
06/05/2015
7.0
8.37
18
252
0.38
-197
8
2.95
1.3
NA
<1
1570
37
2.81
234
140
<0.3
MW-55D
12/01/2015
7.3
9.00
18
252
0.6
-96
109
9.1
0.5
<0.03
<1
1370
37
2.82
231
140
<0.3
MW-55D
01/11/2016
7.1
8.03
1 17
246
1.1
-50
1 155
3.6
1
<0.03
<1
1440
37
2.42
234
150
<0.3
Notes:
- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
ug/I = microgram per liter DO = Dissolved Oxygen mV = millivolts
Eh = Redox potential NTU = nephelometric turbidity unit NM = Not measured
NE = Not established S.U. = Standard Unit NA = Not analyzed
DUP = Duplicate umhos/cm = micro mhos per centimeter ft = feet
< = concentration not detected at or above the reporting limit
= NC DHHS Health Screening Level
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.
Spec Cond = Specific Conductance
mg/I = milligrams per liter
ORP = Oxidation Reduction Potential
Deg C = Degree Celsius
Temp = Temperature
Prepared by: BER Checked by: VTV
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-8 Pee Dee Unit GW Exceedances Page 1 of 1

TABLE 1-9
GROUNDWATER MONITORING PARAMETERS (2016)
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
PARAMETER I RL JUNITS IMETHOD
FIELD PARAMETERS
pH
NA
SU
Field Water Quality Meter
Specific Conductance
NA
µS/cm
Field Water Quality Meter
Temperature
NA
0C
Field Water Quality Meter
Dissolved Oxyqen
NA
mq/L
Field Water Quality Meter
Oxidation Reduction Potential
NA
mV
Field Water Quality Meter
Eh
NA
mV
Field Water Quality Meter
Turbidity
NA
INTU
I Field Water Quality Meter
INORGANICS
Aluminum
0.005
mg/L
EPA 200.7 or 6010C
Antimony
0.001
mg/L
EPA 200.8 or 6020A
Arsenic
0.001
mg/L
EPA 200.8 or 6020A
Barium
0.005
mg/L
EPA 200.7 or 6010C
Boron
0.05
mg/L
EPA 200.7 or 6010C
Chromium
0.001
mg/L
EPA 200.7 or 6010C
Cobalt
0.001
mg/L
EPA 200.8 or 6020A
Copper
0.001
mg/L
EPA 200.8 or 6020A
Hexavalent Chromium
0.00003
mg/L
EPA 218.7
Iron
0.01
mg/L
EPA 200.7 or 6010C
Lead
0.001
mg/L
EPA 200.8 or 6020A
Manganese
0.005
mg/L
EPA 200.7 or 6010C
Mercury
0.00005
mg/L
EPA 245.1
Molybdenum
0.001
mg/L
EPA 200.8 or 6020A
Nickel
0.001
mg/L
EPA 200.8 or 6020A
Selenium
0.001
mg/L
EPA 200.8 or 6020A
Strontium
0.005
mg/L
EPA 200.7 or 6010C
Thallium (low level)
0.0002
mg/L
EPA 200.8 or 6020A
Vanadium (low level)
0.0003
mg/L
EPA 200.8 or 6020A
Zinc
10.005
m /L
EPA 200.7 or 6010C
RADIONUCLIDES
Radium 226
1
pCi/L
EPA 903.1 Modified
Radium 228
3
pCi/L
IEPA 904.0/SW846 9320 Modified
Uranium 233, 234, 236, 238
Varies by isoto e
µg/ml-
ISW846 3010A/6020A
ANIONS/CATIONS/OTHER
Alkalinity (as CaCO3)
20
mg/L
SM 2320B
Bicarbonate
20
mg/L
SM 2320
Calcium
0.01
mg/L
EPA 200.7
Carbonate
20
mg/L
SM 2320
Chloride
0.1
mg/L
EPA 300.0 or 9056A
Hardness
NA
mg/L as
CaCO3
EPA 130.1
Magnesium
0.005
mg/L
EPA 200.7 or 6010C
Nitrate + Nitrite
0.023
mg-N/L
EPA 353.2
Potassium
0.1
mg/L
EPA 200.7
Methane
0.01
mg/L
RSK - 175
Sodium
0.05
mg/L
EPA 200.7
Sulfate
0.1
m L
EPA 300.0 or 9056A
Sulfide
0.1
mq/L
SM 4500 S2 D
Total Dissolved Solids
25
mg/L
SM 2540C
Total Organic Carbon
0.1
mg/L
SM5310C/EPA9060A
Total Suspended Solids
2
m L
SM 2450D
Prepared by: JAW Checked by: BER
Notes:
1. Inorganics analyzed for total and dissolved (0.45 micron) concentrations.
NA indicates not applicable.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 1-9 GW
Monitoring Parameters 2016 Weatherspoon.xlsx Page 1 of 1

TABLE 2-1
DEQ GLOBAL CSA COMMENTS FOR DEP SITES
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Number
General Comment
General Response to Comment
1
DEQ requests determination of 'provisional' background
Provisional background groundwater concentrations were
concentrations (for groundwater in particular). It is understood
provided in the CAP Part 1 reports. Updated provisional
that until a sufficient background data set becomes available to do
background groundwater concentrations are included in this CSA
statistical analysis the term 'provisional background
Supplement 1 report.
concentrations' will be used. Duke is to propose 'provisional
background concentrations' and DEQ will determine background
concentrations.
2
Provisional background concentrations should be determined for
Provisional background concentrations were provided in the CAP
each flow zone (hydrostratigraphic unit) at each facility while
Part 1 reports and presented for each media type (soil,
considering similar subsurface geochemical conditions and site-
sediment, surface water) and hydrogeologic flow zone. Updated
specific conditions (e.g. , oxic versus anoxic conditions).
provisional background groundwater concentrations are included
in this CSA Supplement 1.
3
Geochemical controls (e.g. , pH, DO, and Eh-redox) associated
Geochemical controls were discussed in the CAP Part 1 and CAP
with contaminant migration should be considered in Site
Part 2 documents. PHREEQC geochemical modeling and pH/Eh
Conceptual Model. Eh maps similar to pH maps would be useful
maps were included in the discussion.
for this purpose.
4
Some soil sample analytical detection limits were greater than the
Models and risk assessment evaluations used the method
NC Soil Protection of Groundwater goals. Soil analysis method
detection limit as a conservative approach when detection limits
detection limits should be as close as possible to these values.
were greater than groundwater protection goals. The lab is
aware of the need to use the lowest detection limit possible for
soil samples. Soil matrix interference and other factors limit the
technical practicality of achieving detection limits at or below the
screening level values.
5
Source characterization evaluations should include primary and
Geochemical and fate and transport model evaluations provided
secondary soil source contributions (i.e., leaching of ash
in the CAP considered these mechanisms.
constituents onto soil, leaching of naturally occurring constituents
from native soils, leaching due to changing geochemical
conditions).
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 2-1 DEQ Global Comments.xlsx Page 1 of 4

TABLE 2-1
DEQ GLOBAL CSA COMMENTS FOR DEP SITES
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Number
General Comment
General Response to Comment
6
COIs should be developed based upon results from pore water,
Constituents exceeding the 2L standard have been included in
groundwater and other media. Include hexavalent chromium as
the CAP. The risk assessment screening process is consistent
COI due to interest in water supply well results.
with EPA's approach for determining the constituents that need
to be evaluated ("Human and Ecological Risk Assessment of Coal
Combustion Wastes," USEPA, April 2010, RIN 2050-AE81).
Provisional background concentrations for hexavalent chromium
in groundwater are being developed.
7
Groundwater results should be mapped and presented in cross-
The CSA Supplement 1 graphics address this comment.
sectional view to the detection limit rather than just to 2L. Cross -
sections should include geologic features and chemical contours.
Discuss in text where difficult to contour due to background or
other site conditions.
8
Well construction and integrity should be considered when
In post-CSA activities, wells have been redeveloped or replaced
analyzing the groundwater data. Monitoring wells that exhibit
as necessary. Turbid sample data (samples with turbidity >10
high pH or turbidity should be redeveloped or replaced. Data
NTUs) have been screened from use in statistical analysis using
from samples with >10NTUs should be screened prior to use in
professional judgement where samples may have been visually
statistical analysis.
clear or the turbidty was close to 10 NTUs.
9
Address influence of ash impoundments on subsurface
Geochemical controls and PHREEQC geochemical modeling were
geochemistry and how that may influence contaminant
discussed in the CAP Part 1 and CAP Part 2 documents.
distribution related to CCRs or cause metals to leach from native
soils.
10
Provide vertical gradient maps/figures illustrating flow paths,
Vertical gradient maps were included in the CAP Part 1 reports.
areas of recharge and discharge. Provide plan view map.
11
Show surface water features on base maps and cross -sections.
Maps and cross -sections include surface water features where
applicablle.
12
Tabulate analytical results for water supply wells, including
A map of the water supply wells sampled by DEQ and a
strontium, and provide information on maps.
tabulation of the most recent data is provided in this CSA
Supplement 1 report. Maps and cross -sections showing the
distribution of strontium are also provided within this
supplemental report.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 2-1 DEQ Global Comments.xlsx Page 2 of 4

TABLE 2-1
DEQ GLOBAL CSA COMMENTS FOR DEP SITES
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Number
General Comment
General Response to Comment
13
Include analysis for total uranium, radium-226, and radium-228
Key wells located in background, below ash basin, and
in background, below ash basin, immediate downgradient, and
downgradient of the ash basin have been sampled for total
other downgradient locations. Use Federal MCL for standard for
uranium, Ra 226, and Ra 228. These parameters are also
Ra 226, Ra 228, and U.
included in the 2016 monitoring plan.
14
COPCs (or COI's) should be modeled using site specific Kd values
Agreed, it is anticipated that the various models (i.e.,
or a technical basis provided as to why the modeling or site
geochemical, flow and transport) will be updated as additional
specific Kd for a parameter could not be conducted. The models
data relevant to the models becomes available.
should be "living entities" and updated as more information
becomes available that could change or confirm the outcome of
the models.
15
Appropriate PSRG for chromium is hexavalent chromium due to its
The PSRC for hexavalent chromium is being used in post -CSA
toxicity drives the risk for the constituent.
reports for data comparison purposes.
16
Potential receptors identified as part of the risk assessment should
Recreational users of surface water were identified as potential
include non -trespassing recreational users of surface water bodies
receptors and evaluated as part of the Risk Assessment provide
such as boaters and water supply wells.
in the CAP 2 reports. At most locations, water supply wells are
not located downgradient of the facility and therefore the risk
assessment considered the pathway incomplete. Where
downgradient water supply wells were identified, the data was
evaluated by Haley and Aldrich, Inc. in various reports (2015
and 2016).
17
For isoconcentration contour maps, provide contours for
Revised isoconcentation maps with contour lines indicating
concentrations above the reporting limit/PQL. Use inferred
concentrations above the reporting limit are included in this
(dashes) lines where appropriate.
document. Where appropriate, inferred lines are used.
18
Data collected to support CSAs should be incorporated into maps,
The requested information has been included in various reports
narratives and provided in CAPs (water supply, seep, SW,
including the CSA report, CAP Part 1, CAP Part 2, and this CSA
sediment, background). Data collected prior to CAMA activities
Supplement 1 report.
should also be included.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 2-1 DEQ Global Comments.xlsx Page 3 of 4

TABLE 2-1
DEQ GLOBAL CSA COMMENTS FOR DEP SITES
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Number
General Comment
General Response to Comment
19
2L exceedances related to naturally occurring conditions cannot
Noted. Initial provisional background concentrations were
be confirmed until, at a minimum, provisional background
presented in the CAP Part 1 report based upon the data
concentrations are determined. Dynamic redox and geochemical
available at the time. Updated provisional background
conditions can liberate naturally occurring metals (e.g. , As, Fe,
concentrations are presented in this CSA Supplement 1 report
Mn) from soil and aquifer media.
using 5 or 6 data sets as available. Duke anticipates at least 8
rounds of data from the new background wells will be used to
statistically develop background concentrations. Geochemical
modeling has been conducted to assess dynamic redox and
geochemical conditions.
20
Surface water hydrology (e.g. , wetlands, tributaries, etc.) as it
A discussion of groundwater and surface water interaction was
relates to groundwater modeling or risk assessment
provided in the CAP Part 1 and site data was incorporated into
considerations should be included in the CAP.
the groundwater models. Stream information was incorporated
in the modeling and risk assessments.
Prepared by: JAW Checked by: KWW
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 2-1 DEQ Global Comments.xlsx Page 4 of 4

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
PH
Water
Level
Temp
Spec
Curd
DO
ORP
Eh
Turbidity
Ferrous
Iron
Alkalinity
Aluminum
Aluminum
Aluminum
Antimony
Antimony
Antimony
Arsenic
Arsenic
Arsenic
Barium
Barium
Barium
Beryllium
Beryllium
Beryllium
Bi
carbonate
Alkalinity
BOD
Boron
Boron
Boron
Cadmium
Cadmium
Cadmium
DIS
DIS (0.1u)
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0. 1u)
TOT
DIS
DIS (0. 1u)
TOT
Reporting Units
P 9
S.U.
ft
De C
9
umhos
/cm
mg/I
mV
mV
NTUs
mg/I
mg/i
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
1*
NE
NE
10
NE
NE
700
NE
NE
4*
NE
NE
NE
NE
700
NE
NE
2
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
BW-1
03/09/2015
4.1
4.55
14
179
1.34
327
532
2.88
NM
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
63
NA
NA
NA
NA
NAEl
<50
NA
NA
<1
BW-1
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<5
1560
NA
1900
<1
NA
<1
<I
NA
<1
55
NA
56
<1
NA
<1
<5
NA67
<1
NA
<1.
BW-1 DUP
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<5
NA
NA
1860
NA
NA
<1
NA
NA
<1
NA
NA
57
NA
NA
<1
<5
NA67
NA
NA
11
BW-1
10/14/2015
4.2
8.78
19
756
0.3
244
449
0.46
NM
<5
NA
NA
1170
NA
NA
<1
NA
NA
<1
NA
NA
69
NA
NA
<1
<5
NA70
NA
NA
11.
BW-1
12/02/2015
4.2
6.87
18
213
1.03
331
536
6.01
0
<10
3920
3860
4100
<1
<1
<1
<I
<1
<1
82
81
81
<1
<1
<1
<10
NA62
<1
<1
<1
BW-1
01/11/2016
3.7
4.58
15
149
1.4
314
519
1.41
0
<5 M1
4550
4550
5300
<1
<1
<1
<I
<1.
<1
52
52
55
<1
<1
<1
<5
NA60
<1
<1
<1.
BW-1 FIN
01/11/2016
3.7
4.58
15
149
1.4
314
.919
1.41
0
NA
NA
NA
1340
NA
NA
<1
NA
NA
<1
NA
NA
55
NA
NA
<1
NA
NA58
NA
NA
<1
BW-1
04/20/2016
4.1
4.95
17
120
0.4
262
467
3.18
NM
<5
NA
NA
3680
NA
NA
<1
NA
NA
<1
NA
NA
58
NA
NA
<1
<5
NA<50
NA
NA
<1.
BW-2S
03/06/2015
6.3
5.01
10
240
0.1
-80
126
216
2
87
182
NA
11800
<1
NA
<1
1.41
NA
2.39
21
NA
38
<1
NA
<1
86
NA
<50
NA
<50
<1
NA
<1
BW-2S
06/04/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/05/2015
5.1
9.85
18
86
0.3
-92
113
>1000
NM
21
160
NA
57400
<1
NA
<1
1.13
NA
3.93
14
NA
96
<1
NA
<1
21
NA
<50
NA
<50
<1
NA
11.
BW-2S
09/30/2015
5.0
14.10
22
66
2.1
21
226
29
NM
NA
232
234
1650
<1
<1
<1
<1
<1
<1
26
26
27
<1
<1
<1
NA
NA
<50
<50
<50
<1
<1
11
BW-2S
12/02/2015
9.8
8.33
18
62
0.4
120
325
34.6
1.5
<10
245
226
2050
<1
<1
<1
<1
<1
<1
27
27
31
<1
<1
<1
<10
NA
<50
<50
<50
<1
<1
<1.
BW-2S
01/12/2016
4.7
5.85
13
57
1.06
181
386
9.58
1
<5
199
167
1130
<1
<1
<1
<1
<1
<1
21
21
24
<1
<1
<1
<5
NA
<50
<50
<50
<1
<1
<1
BW-2S FIN
01/12/2016
4.7
5.85
13
57
1 1.06
1 181
386
9.58
1
NA
NA
NA
939
NA
NA
<1
NA
NA
<1
NA
NA
23
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1.
BW-2S
03/07/2016
5.6
5.37
16
1 114
1 0.21
1 1
206
61
1 1.5
1 27.9
75
74
3120
<1
<1
<1
<1
<1
1.46
18
18
22
<1
<1
<1
27.9
NA
<50
<50
<50
<1
<1
<1
BW-2S END
03/07/2016
5.6
5.37
16
114
0.21
1
206
38.6
1.5
NA
NA
NA
2210
NA
NA
<1
NA
NA
1.1
NA
NA
21
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<].
BW-3S
03/05/2015
5.4
3.40
18
112
0.25
41
246
14.3
4.5
<10
168
NA
717
<1
NA
<1
<1
NA
<1
20
NA
19
<1
NA
<1
<10
NA
<50
NA
<50
<1
NA
<1.
BW-3S
06/03/2015
5.5
5.62
19
99
0.4
-108
97
19.5
3
10
170
NA
749
<1
NA
<1
<I
NA
<1
19
NA
20
<1
NA
<1
10
NA
<50
NA
<50
<1
NA
<1
BW-3S
09/30/2015
5.2
7.38
22
84
0.3
58
263
7.89
NM
NA
176
865
678
<1
<1.
<1
<1
<1
<1
15
16
17
<1
<1
<1
NA
NA
<50
<50
<50
<1
<1
<].
BW-3S
12/02/2015
5.3
3.94
18
99
0.33
7
212
5.14
NM
<10
178
179
284
<1
<1
<1
<1
<1
<1
19
19
19
<1
<1
<1
<10
NA
<50
<50
<50
<1
<1
<1
BW-3S
01/11/2016
5.1
3.50
15
104
0.29
45
250
2.25
1.5
<5
162
167
308
<1
<1
<1
<1
<1
<1
19
18
20
<1
<1
<1
<5
NA
<50
<50
<50
<1
<1
11.
BW-3S FIN
01/11/2016
5.1
3.50
15
104
0.29
45
250
2.25
1.5
NA
NA
NA
319
NA
NA
<1
NA
NA
<1
NA
NA
20
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
11
BW-3S
03/07/2016
5.4
4.12
14
87
0.17
58
263
2.9
3
7.6
177
175
362
<1
<1
<1
<1
<].
<1
16
17
17
<1
<1
<1
7.6
NA
<50
<50
<50
<1
<1
<].
BW-35 END
03/07/2016
5.4
4.12
14
87
0.17
58
263
2.87
3
NA
NA
NA
366
NA
NA
<1
NA
NA
<1
NA
NA
17
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1
MW-1
06/05/2015
4.0
17.88
17
44
2.03
206
411
3.43
<0.5
<10
232
NA
265
<1
NA
<1
<1
NA
<1
9
NA
9
<1
NA
<1
<10
NA
<50
NA
<50
<1
NA
<1
MW-1
12/01/2015
4.6
17.72
19
40
2.27
246
451
3.59
0
<10
191
197
208
<1
<1
<1
11
<1
<1
9
9
10
<1
<1
<1
<10
NA
<50
<50
<50
<1
<1
11.
MW-1
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<5
109
176
291
<1
<1
<1
<I
<1
<1
10
10
11
<1
<1
<1
<5
NA
<50
<50
<50
<1
<1
<1
MW-1 DUP
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<5
206
208
297
<1
<1
<1
<I
<1
<1
9
9
11
<1
<1
<1
<5
NA
<50
<50
<50
<1
<1
11.
MW-1 FIN
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
NA
NA
NA
287
NA
NA
<1
NA
NA
<1
NA
NA
11
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
11
MW-1 DUP FIN
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
NA
NA
NA
276
NA
NA
<1
NA
NA
<1
NA
NA
11
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1.
MW-1
04/20/2016
4.5
16.89
17
38
1.67 S
210
415
1.96
NM
NA
NA
NA
NA
NA
NA
<1
NA
NA
qr
<1
NA
NA
9
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1
Lower Yorktown
BW-21
03/05/2015
7.0
7.18
11
291
0.29
-73
132
89.9
1
110
53
NA
2730
<1
NA
<1
1.37
NA
1.8
21
NA
26
11
NA
<1
110
NA
<50
NA
<50
<1
NA
<1
BW-2I
06/04/2015
7.3
10.11
18
285
0.16
-115
90
413
<0.5
130
24
NA
18300
<1
NA
<1
1.12
NA
3.89
19
NA
53
11.
NA
1.19
130
NA
<50
NA
<50
<1
NA
<1
BW-2I
09/30/2015
7.7
13.48
21
295
0.2
-201
4
9.99
NM
NA
48
14400
3140
<1
<10
<1
<1
<10
1.01
21
60
26
<1
<10
<1
NA
NA
<50
<500
<50
<1
<10
<1
BW-21
12/02/2015
7.3
9.22
18
296
0.1
-52
153
710
NM
140
76
70
37600
<1
<1
<1
1.5
1.36
6.5
15
14
81
<1
<1
2.11
140
NA
55
53
74
<1
<1
<1.
BW-21
01/12/2016
7.2
7.31
13
321
0.27
-154
51
320.8
0
143
40
39
12100
<1
<1
<1
<1
<1
4.21
13
13
42
<1
<1
<1
143
NA
51
<50
54
<1
<1
11
BW-21 FIN
01/12/2016
7.2
7.31
13
321
0.27
-154
51
320.8
0
NA
NA
NA
11600
NA
NA
<1
NA
NA
4.22
NA
NA
41
NA
NA
<1
NA
NA
NA
NA
52
NA
NA
<1.
BW-2I
03/07/2016
7.2
6.84
16
1 251
1 0.16
-180
25
1 346
1 NM
1 133
1 32
1 33
1 12600
1 <1
I <1
I <1
I <1
I <1
4.26
1 14
1 14
42
<1
<1
I <1
1 133
NA
<50
1 <50
1 <50
<1
11
<1
BW-2! END
03/07/2016
7.2
6.84
16
251
0.16
-180
25
1 332
1 NM
I NA
I NA
I NA
1 10200
1 NA
I NA
I <1
I NA
I NA
1 3.85
1 NA
I NA
1 37
1 NA
NA
I <1
I NA
I NA
I NA
I NA
1 <50
1 NA
I NA
<1.
BW-31
03/04/2015
5.8
3.01
18
92
0.09
-20
186
58.3
5.5
22
44
NA
1460
<1
NA
<1
5.84
NA
9.07
25
NA
31
<1
NA
<1
22
NA
<50
NA
<50
<1
NA
<1
BW-31
06/03/2015
5.7
5.27
19
67
0.1
-96
109
20.7
2.5
24
32
NA
224
<1
NA
<1
<1
NA
<1
19
NA
19
<1
NA
<1
24
NA
<50
NA
<50
<1
NA
<1
BW-3I
12/02/2015
5.5
3.59
18
76
0.88
-5
200
24.5
1
16
48
47
330
<1
<1
<1
<1
<1
<1
19
19
20
<1
<1
<1
16
NA
<50
<50
<50
<1
<1
<1.
BW-31
01/11/2016
5.5
3.15
16
88
0.22
70
275
9.92
0.5
17.7
24
25
226
<1
<1
<1
<1
<1
<1
20
20
23
<1
<1
<1
17.7
NA
<50
<50
<50
<1
<1
<1
BW-31 FIN
01/11/2016
5.5
3.15
16
88
0.22
70
275
9.92
0.5
NA
NA
NA
222
NA
NA
<1
NA
NA
<1
NA
NA
23
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1
BW-31
03/07/2016
5.6
3.79
16
77
0.19
73
278
9.86
1.5
15
47
45
492
<1
<1
<1
<1
<1
<1
19
20
21
<1
<1
<1.
15
NA
<50
<50
<50
<1
<1
<1
BW-31 END
03/07/2016
5.6
3.79
16
77
0.19
73
278
9.35
1.5
NA
NA
NA
509
NA
NA
<1
NA
NA
<1
NA
NA
22
NA
NA
<1
NA
NA
N-
NA
<50
NA
NA
<1
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xlsx Page 1 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Calcium
Carbonate
Alkalinity
Chloride
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Chromium
Chromium
Cobalt
Cobalt
Cobalt
COD
Copper
Copper
Copper
Fluoride
Iron
Iron
Iron
Lead
Lead
Lead
Lithium
Magnesium
Manganese
Manganese
Manganese
Mercury
Mercury
Mercury
Methane
TOT
DIS
DIS (O.lu)
TOT
DIS
DIS (O.lu)
TOT
DIS
DIS (0.1u)
TOT
DIS
DIS (0.1u)
TOT
DIS
DIS (O.lu)
TOT
TOT
DIS
DIS (O.lu)
TOT
DIS
DIS (0.1u)
TOT
Reporting Units
mg/1
mg/I
mg/1
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
15A NCAC 02L Standard
NE
NE
250
NE
NE
NE
NE
10
NE
NE
1*
NE
NE
NE
1000
2
NE
NE
300
NE
NE
15
NE
NE
NE
NE
50
NE
NE
1
NE
Sample ID SampleCollection Date
Analytical Results
BW-1
03/09/2015 NA NA 13 NA NA
NA
NA
<5
NA NA NA NA NA
15 NA NA NA 162
NA NA 10 NA NA
<0.05 NA
NA
NA
NA
1.14
NA
NA
BW-1
06/02/2015
5.13
<5
7.1
NA
0.017
1.32
NA
<5
<1
NA
<1
NA
<1
NA
<5
NA
141
NA
253
<1
NA
1.1
NA
2.6
25
NA
24
<0.05
NA
<0.05
30
BW-1 DUP
06/02/2015
5.16
<5
7.1
NA
NA
NA
NA
<5
NA
NA
<1
NA
NA
NA
<5
NA
NA
NA
231
NA
NA
1.05
NA
2.59
NA
NA
25
NA
NA
<0.05
NA
BW-1
10/14/2015
5.75
<5
6.2
NA
NA
NA
NA
<5
NA
NA
<1
NA
NA
NA
<5
NA
NA
NA
39
NA
NA
1.13
NA
2.25
NA
NA
32
NA
NA
<0.05
NA
BW-1
12/02/2015
5.03
<10
19
0.056
NA
2.06
2.09
2.2
<1
<1
<1
NA
<1
1.03
<1
NA
100
96
313
1.86
1.85
2.22
NA
2.3
36
36
35
<0.05
<0.05
<0.05
<10
BW-1
01/11/2016
1.9
<5
13
0.08
NA
2.48
2.44
2.33
<1
<1
<1
NA
1.04
3.16
<1
NA
95
97
124
1.36
1.48
1.37
NA
1.28
8
9
9
<0.05
<0.05
<0.05
<10
BW-1 FIN
01/11/2016
1.89
NA
NA
NA
NA
NA
NA
2.56
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
128
NA
NA
1.37
NA
1.26
NA
NA
9
NA
NA
<0.05
NA
BW-1
04/20/2016
2.12
<5
9.2
NA
NA
NA
NA
<5
NA
NA
<1
NA
NA
NA
<5
NA
NA
NA
482
NA
NA
1.12
NA
1.24
NA
NA
12
NA
NA
<0.05
NA
BW-2S
03/06/2015
44.2
<10
7.8
NA
NA
<1
NA
8.61
<1
NA
<1
NA
<1
NA
2.16
NA
1500
NA
2570
<1
NA
7.85
NA
0.669
27
NA
31
<0.05
NA
0.17
140
BW-2S
06/04/2015
NA
NA
NA
NA
0.04
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/05/2015
4.08
<10
7
NA
NA
<1
NA
25.9
<1
NA
<1
NA
<1
NA
8.05
NA
1670
NA
6420
<1
NA
42.1
NA
0.535
14
NA
25
<0.05
NA
0.78
130
BW-2S
09/30/2015
3.87
NA
NA
NA
NA
<1
<1
1.54
<1
<1
<1
NA
<1
<1
<1
NA
2000
2030
2150
<1
<1
1.09
NA
0.526
18
18
19
<0.05
<0.05
0.07
NA
BW-2S
12/02/2015
2.79
<10
7.2
0.063
NA
<1
<1
1.42
<1
<1
<1
NA
<1
<1
<1
NA
1040
987
1240
<1
<1
1.66
NA
0.559
14
14
15
<0.05
<0.05
<0.05
75
BW-2S
01/12/2016
3.53
<5
7.6
<0.03
NA
<1
<1
<1
<1
<1
<1
NA
<1
<1
<1
NA
1230
1110
1670
<1
<1
<1
NA
0.466
15
15
17
<0.05
<0.05
<0.05
86.6
BW-25 FIN
01/12/2016
3.86
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
1680
NA
NA
<1
NA
0.478
NA
NA
17
NA
NA
<0.05
NA
BW-2S
03/07/2016
14.6
<5
7.3
0.032
NA
<1
<1
2.51
<1
<1
<1
NA
11
<1
<1
NA
1600
1680
2750
<1
<1
2.17
NA
0.64
28
29
31
<0.05
<0.05
<0.05
145
BW-2S END
03/07/2016
13.5
NA
NA
NA
NA
NA
NA
1.91
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
2350
NA
NA
1.45
NA
0.625
NA
NA
29
NA
NA
<0.05
NA
BW-3S
03/05/2015
3.15
<10
16
NA
NA
1.47
NA
1.98
<1
NA
<1
NA
<1
NA
<1
NA
5110
NA
5240
<1
NA
<1
NA
1.39
46
NA
46
<0.05
NA
<0.05
640
BW-3S
06/03/2015
3.1
<10
13
NA
0.034
1.52
NA
2.18
<1
NA
<1
NA
<1
NA
<1
NA
4190
NA
4490
<1
NA
<1
NA
1.44
41
NA
40
<0.05
NA
<0.05
510
BW-3S
09/30/2015
2.4
NA
NA
NA
NA
1.24
1.74
1.71
<1
<1
<1
NA
<1
<1
<1
NA
3020
3070
3210
<1
<1
<1
NA
1.01
31
31
33
<0.05
<0.05
<0.05
NA
BW-3S
12/02/2015
3.02
<10
16
0.049
NA
1.54
1.48
1.44
<1
<1
<1
NA
<1
<1
<1
NA
4080
4030
4100
<1
<1
<1
NA
1.45
37
37
36
<0.05
<0.05
<0.05
560
BW-3S
01/11/2016
3.1
<5
18
0.047
NA
1.61
1.44
1.59
<1
<1
<1
NA
<1
<1
<1
NA
3660
3680
3920
<1
<1
<1
NA
1.36
40
41
45
<0.05
<0.05
<0.05
214
BW-3S FIN
01/11/2016
3.04
NA
NA
NA
NA
NA
NA
1.54
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
3950
NA
NA
<1
NA
1.34
NA
NA
45
NA
NA
<0.05
NA
BW-3S
03/07/2016
2.9
<5
12
0.037
NA
1.44
1.58
1.61
<1
<1
<1
NA
<1
<1
<1
NA
3390
3370
3540
<1
<1
<1
NA
1.28
39
39
39
<0.05
<0.05
<0.05
300
BW-3S END
03/07/2016
2.78
NA
NA
NA
NA
NA
NA
1.58
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
3490
NA
NA
<1
NA
1.23
NA
NA
39
NA
NA
<0.05
NA
MW-1
06/05/2015
1.09
<10
2.1
NA
NA
<1
NA
<1
<1
NA
<1
NA
<1
NA
<1
NA
<10
NA
323
<1
NA
<1
NA
1.26
10
NA
10
<0.05
NA
<0.05
<10
MW-1
12/01/2015
1.01
<10
2.4
<0.03
NA
<1.
<1
<1
<1
<1
<1
NA
<1
<1
<1
NA
<10
<10
66
<1
<1
<1
NA
1.23
9
9
8
<0.05
<0.05
<0.05
<10
MW-1
01/11/2016
0.971
<5
2.4
<0.03
NA
<1
<1
<1
<1
<1
<1
NA
<1
1.15
<1
NA
<10
<10
223
<1
<1
<1
NA
1.28
9
9
11
<0.05
<0.05
<0.05
<10
MW-1 DUP
01/11/2016
0.953
<5
2.3
<0.03
NA
<1
<1
<1
<1.
<1
<1
NA
<1
<1
<1
NA
<10
<10
270
<1
<1
<1
NA
1.27
9
9
11
<0.05
<0.05
<0.05
<10
MW-1 FIN
01/11/2016
0.924
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
88
NA
NA
<1
NA
1.27
NA
NA
11
NA
NA
<0.05
NA
MW-1 DUP FIN
01/11/2016
0.939
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
71
NA
NA
<1
NA
1.27
NA
NA
10
NA
NA
<0.05
NA
MW-1
04/20/2016
1.11
NA
2
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
NA
<0.1
NA
NA
NA
NA
NA
<1
<0.005
NA
NA
NA
NA
NA
NA
<0.05
NA
BW-21
03/05/2015
50.4
c7.0
4.6
NA
NA
<1
NA
7.08
<1
NA
<1
NA
<1
NA
<1
NA
764
NA
2090
<1
NA
1.29
NA
0.827
29
NA
35
<0.05
NA
<0.05
65
BW-21
06/04/2015
45.6
<10
4.4
NA
NA
<1
NA
30.8
<1
NA
1.31
NA
<1
NA
2.56
NA
908
NA
7850
<1
NA
8.99
NA
0.841
28
NA
50
<0.05
NA
0.1
710
BW-2I
09/30/2015
42.8
NA
NA
NA
NA
<1
47.8
7.81
<1
<10
<1
NA
<1
<10
<1
NA
71
3280
882
<1
10
1.63
NA
0.852
18
<50
22
<0.05
<0.05
<0.05
NA
BW-21
12/02/2015
45.3
<10
4.8
0.44
NA
3.02
2.46
67
<1
<1
2.63
NA
<1
<1
5.43
NA
841
758
12600
<1
<1
20.9
NA
1.05
26
26
64
<0.05
<0.05
0.23
1900
BW-21
01/12/2016
42.2
<5
4.7
0.18
NA
1.56
1.57
26.1
<1
<1
1.53
NA
<1
<1
2.9
NA
914
857
5690
<1
<1
10.5
NA
0.752
25
25
47
<0.05
<0.05
0.06
1290
BW-2I FIN
01/12/2016
42
NA
NA
NA
NA
NA
NA
24.3
NA
NA
1.39
NA
NA
NA
2.79
NA
NA
NA
5560
NA
NA
9.74
NA
0.745
NA
NA
47
NA
NA
0.05
NA
BW-21
03/07/2016
42.8
15
4.1
0.18
NA
1.15
1.34
21.4
<1
<1
1.53
NA
<1
<1
2.66
NA
1030
1000
6030
<1
<1
10.1
NA
0.78
27
28
47
<0.05
<0.05
0.1
1190
BW-21 END
03/07/2016
41.4
NA
NA
NA
NA
NA
NA
19.2
NA
NA
1.38
NA
NA
NA
2.32
NA
NA
NA
5160
NA
NA
8.4
NA
0.771
NA
NA
43
NA
NA
0.08
NA
BW-31
03/04/2015
9.25
<10
9.2
NA
NA
<1
NA
2.78
<1
NA
<1
NA
<1
NA
<1
NA
4700
NA
5790
<1
NA
<1
NA
0.39
58
NA
60
<0.05
NA
<0.05
620
BW-31
06/03/2015
7.67
<10
5.8
NA
NA
<1
NA
1.16
<1
NA
<1
NA
2.24
NA
<1
NA
2600
NA
2280
<1
NA
<1
NA
0.341
26
NA
21
<0.05
NA
<0.05
660
BW-3I
12/02/2015
6.23
<10
11
0.047
NA
<1
<1
1.18
<1
<1
<1
NA
<1
<1
<1
NA
2100
2030
2200
<1
<1
<1
NA
0.389
20
19
19
<0.05
<0.05
<0.05
710
BW-31
01/11/2016
7.87
<5
12
<0.03
NA
<1
<1
<1
<1
<1
<1
NA
<1
1.24
<1
NA
1120
1130
1720
<1
<1
<1
NA
0.395
16
17
19
<0.05
<0.05
<0.05
444
BW-31 FIN
01/11/2016
7.84
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
1770
NA
NA
<1
NA
0.393
NA
NA
19
NA
NA
<0.05
NA
BW-31
03/07/2016
7.02
<5
10
0.049
NA
<1
<1
1.34
<1
<1
<1
NA
<1
<1
<1
NA
1720
1760
2070
<1
<1
<1
NA
0.487
21
21
20
<0.05
<0.05
<0.05
499
BW-3I END
03/07/2016
6.66
NA
NA
NA
NA
NA
NA
1.29
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
2220
NA
NA
<1
NA
0.489
NA
NA
21
NA
NA
<0.05
NA
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Backgmund Analytical Results CSA Rounds 1-6_2016-06-06.xlsx Page 2 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Molybdenum
Molybdenum
Molybdenum
Nickel
Nickel
Nickel
Nitrate
as t)
Nitrate
Nitrite
Potassium
Selenium
Selenium
Selenium
Silver
Sodium
Strontium
Strontium
Strontium
Sulfate
Sulfide
Thallium
Thallium
Thallium
Total
Dissolved
Solids
Total
Organic
Carbon
Total
Organic
Halides
Total
Suspended
Solids
DIS
DIS (O.lu)
TOT
DIS
DIS (0 1u)
TOT
TOT
DIS
DIS (0 1u)
TOT
TOT
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0.1u)
TOT
Reporting Units
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg-N/L
mg/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
mg/I
mg/I
mg/I
mg/I
15A NCAC 02L Standard
NE
NE
NE
NE
NE
100
10
10
NE
NE
NE
NE
20
20
NE
NE
NE
NE
250
NE
NE
NE
0.2*
500
NE
NE
NE
Sample ID
Sample
Collection Date
Analytical Results
BW-1
03/09/2015
NA
NA
NA
NA
NA
<5
NA
0.22
NA
NA
NA
NA
<1
NA
NA
NA
NA
NA
51
NA
NA
NA
<0.2
130
NA
NA
NA
BW-1
06/02/2015
<1
NA
<1
<1
NA
<5
1.4
5.8
NA
13
1.46
NA
1.42
NA
3.14
29
NA
<1000
47
<0.1
<0.2
NA
<0.2
87
6.7
NA
6
BW-1 DUP
06/02/2015
NA
NA
<1
NA
NA
<5
1.4
6
NA
13.2
NA
NA
1.38
NA
3.19
NA
NA
<1000
48
NA
NA
NA
<0.2
97
NA
NA
5
BW-1
10/14/2015
NA
NA
<1
NA
NA
<5
2.2
9.6
NA
18
NA
NA
1.65
NA
2.86
NA
NA
28
59
NA
NA
NA
0.302
96
NA
NA
<5
BW-1
12/02/2015
<1
<1
<1
1.24
<1
1.22
0.682
NA
NA
14.8
1.29
1.05
1.5
NA
11.9
40
40
40
57
<1
0.551
<0.2
<0.2
130
12
NA
29
BW-1
01/11/2016
<1
<1
<1
1.01
2.9
<1
<0.01
NA
NA
8.55
<1
<1
<1
NA
6.47
21
21
21
46
<0.1
<0.2
<0.2
<0.2
110
21
NA
<5
BW-1 FIN
01/11/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
8.46
NA
NA
<1
NA
6.37
NA
NA
21
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-1
04/20/2016
NA
NA
<1
NA
NA
<5
0.1
0.46 B2
NA
7.69
NA
NA
<1
NA
4.78
NA
NA
18
35
NA
NA
NA
<0.2
86
NA
NA
30
BW-2S
03/06/2015
1.09
NA
1.32
<1
NA
2.17
<0.01
NA
NA
2.07
<1
NA
1.67
NA
6.26
134
NA
146
9.1
<0.5
<0.2
NA
<0.2
280
23
NA
31
BW-2S
06/04/2015
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/05/2015
1.48
NA
3.64
<1
NA
2.9
0.032
NA
NA
0.599
<1
NA
5.54
NA
11.6
17
NA
39
8.5
<1
<0.2
NA
<0.2
520
9.1
NA
<125
BW-2S
09/30/2015
<1
<1
<1
<1
<1
<1
NA
NA
NA
0.554
<1
<1
<1
NA
4.33
19
19
19
NA
NA
<0.2
0.26
<0.2
NA
NA
NA
NA
BW-2S
12/02/2015
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
0.568
<1
<1
<1
NA
4.34
17
17
18
7.5
<0.1
<0.2
<0.2
<0.2
62
3
NA
9
BW-2S
01/12/2016
<1
<1
<1
<1
1.24
<1
0.05
NA
NA
0.524
<1
<1
<1
NA
4.04
19
19
19
8.6
0.21
<0.2
<0.2
<0.2
46
2.7
NA
<5
BW-2S FIN
01/12/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
0.512
NA
NA
<1
NA
4
NA
NA
19
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-2S
03/07/2016
<1
<1
<1
<1
1.2
<1
0.632
NA
NA
0.662
<1
<1
<1
NA
4.61
33
35
36
7.9
<0.1
<0.2
<0.2
<0.2
110
5.8
NA
<5
BW-2S END
03/07/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
0.653
NA
NA
<1
NA
4.41
NA
NA
34
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-3S
03/05/2015
<1
NA
<1
<I
NA
<1
0.015
NA
NA
1.17
<1
NA
<1
NA
10
21
NA
21
5.3
<0.5
<0.2
NA
<0.2
69
7.2
NA
41
BW-3S
06/03/2015
<1
NA
<1
11
NA
<1
0.01
NA
NA
1.19
<1
NA
<1
NA
8.75
21
NA
21
9.1
0.466
<0.2
NA
<0.2
75
6.8
NA
<5
BW-3S
09/30/2015
<t.
<1
<1
<1
1.32
<1
NA
NA
NA
1.14
<1
<1
<1
NA
7.46
16
16
16
NA
NA
<0.2
<0.2
<0.2
NA
NA
NA
NA
BW-3S
12/02/2015
<t
<1
<1
<1
<1
<1
<0.01
NA
NA
1.19
<1
<1
<1
NA
9.78
21
21
21
7.5
0.15
<0.2
<0.2
<0.2
74
0.832
NA
<5
BW-3S
01/11/2016
<1
<1
<1
<1
4.06
<1
0.037
NA
NA
1.11
<1
<1
<1
NA
10.2
21
21
21
10
<0.1
<0.2
<0.2
<0.2
60
1.6
NA
5
BW-3S FIN
01/11/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
1.11
NA
NA
<1
NA
10.3
NA
NA
21
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-3S
03/07/2016
<1.
<1
<1
<1
<1
<1
<0.01
NA
NA
0.986
<1
<1
<1
NA
8.11
19
20
20
7.5
<0.1
<0.2
<0.2
<0.2
70
7.9
NA
<5
BW-3S END
03/07/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
0.944
NA
NA
<1
NA
8.04
NA
NA
20
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
MW-1
06/05/2015
<1
NA
<1
<1
NA
<1
1.2
NA
NA
1.07
<1
NA
<1
NA
1.41
9
NA
9
5
<0.1
<0.2
NA
<0.2
<25
0.449
NA
<5
MW-1
12/01/2015
<1
<1
<1
<1
<1
<1
1.1
NA
NA
1.13
<1
<1
<1
NA
1.44
9
9
8
5.6
<0.1
<0.2
<0.2
<0.2
<25
0.489
NA
<5
MW-1
01/11/2016
<1
<1
<1
<1
<1
<1
1.2
NA
NA
1.02
<1
<1
<1
NA
1.46
8
9
9
4.3
<0.1
<0.2
<0.2
<0.2
<25
0.555
NA
<5
MW-1 DUP
01/11/2016
<1
<1
<1
<1
<1
<1
1.2
NA
NA
1.02
<1
<1
<1
NA
1.46
8
8
9
4.6
<0.1
<0.2
<0.2
<0.2
<25
0.54
NA
<5
MW-1 FIN
01/11/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
1.07
NA
NA
<1
NA
1.47
NA
NA
9
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
MW-1 DUP FIN
01/11/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
1.07
NA
NA
<1
NA
1.45
NA
NA
9
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
MW-1
04/20/2016
NA
NA
<1
L NA j
NA
I NA
I NA
NA
NA
NA
<1
NA
NA
NA
NA
NA
3.6
NA
NA
NA
<0.2
<25
NA
NA
NA
Lower Yorktown
BW-21
03/05/2015
10.5
NA
11
<1
NA
<1
<0.01
NA
NA
4.92
3.24
NA
3.16
NA
12.2
217
NA
229
13
<2
<0.2
NA
jmp�
<0.2
200
8.4
NA
<5
BW-2I
06/04/2015
15.1
NA
12.5
<1
NA
2.88
0.021
NA
NA
2.11
<1
NA
1.09
NA
19
216
NA
255
2.1
<0.5
<0.2
NA
<0.2
440
8.2
NA
200
BW-2I
09/30/2015
6.96
15.7
9.33
<1
<10
<1
NA
NA
NA
5.76
<1
<10
<1
NA
15.5
225
249
233
NA
NA
<0.2
<2
<0.2
NA
NA
NA
NA
BW-21
12/02/2015
7.6
7.01
12.8
<1
1.02
6.03
0.05
NA
NA
1.44
<1
<1
2.08
NA
30.4
191
189
272
0.26
<4
<0.2
<0.2
<0.2
970
9.8
NA
180
BW-21
01/12/2016
4.99
4.94
9.09
<1
<1
3.26
0.429
NA
NA
1.1
<1
<1
<1
NA
21.8
188
189
223
0.24
<0.1
<0.2
<0.2
<0.2
320
7.5
NA
89
BW-21 FIN
01/12/2016
NA
NA
8.8
NA
NA
3.09
NA
NA
NA
1.07
NA
NA
<1
NA
21.1
NA
NA
223
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-2I
03/07/2016
2.86
2.86
6.73
<1
<1
3.17
0.504
NA
NA
1.01
<1
<1
<1
NA
15.2
201
203
231
<0.1
<0.1
<0.2
<0.2
<0.2
360
7.2
NA
130
BW-2I END
03/07/2016
NA
NA
6.38
NA
NA
2.99
NA
NA
NA
0.986
NA
NA
<1
NA
14.6
NA
NA
224
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-3I
03/04/2015
<1
NA
1.08
<1
NA
<1
<0.02
NA
NA
0.812
<1
NA
<1
NA
5.09
47
NA
51
0.41
<0.1
<0.2
NA
<0.2
86r
NA
23
BW-3I
06/03/2015
<1
NA
<1
<1
NA
<1
<0.01
NA
NA
0.877
<1
NA
<1
NA
4.28
48
NA
41
0.12
<0.1
<0.2
NA
<0.2
57NA
5
BW-3I
12/02/2015
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
0.908
<1
<1
<1
NA
6.07
36
36
36
0.89
<0.2
<0.2
<0.2
<0.2
72
NA
9
BW-3I
01/11/2016
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
0.85
<1
<1
<1
NA
5.7
44
45
48
0.18
<0.1
<0.2
<0.2
<0.2
47NA
5
BW-3I FIN
01/11/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
0.859
NA
NA
<1
NA
5.7
NA
NA
48
NA
NA
NA
NA
<0.2
NANA
NA
BW-3I
03/07/2016
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
0.827
<1
<1
<1
NA
6
40
41
41
1.3
<0.1
<0.2
<0.2
<0.2
75NA
<5
BW-3I END
03/07/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
0.804
NA
NA
<1
NA
6.1
NA
NA
41
NA
NA
NA
NA
<0.2
NANA
NA
P:\Duke Energy Progress.1026\509. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xlsx Page 3 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Vanadium
Vanadium
Vanadium
Zinc
Zinc
Zinc
Radium-226
Radium-228
Uranium-233
Uranium-234
Uranium-236
Uranium-238
As(III)
As(V)
MMAs
DMAs
As (UK)
Fe(II)
Fe(III)
Mn(II)
Mn(IV)
DIS
DIS (0.1u)
TOT
DIS
DIS (01u)
TOT
Reporting Units
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
pCi/I
pCi/I
ug/mL
ug/mL
ug/mL
ug/mL
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
15A NCAC 02L Standard
NE
NE
0.3*
NE
NE
1000
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
Sample ID
Sample
Collection Date
Analytical Results
BVV-1
03/09/2015
NA
NA
NA
NA
NA
14
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-1
06/02/2015
4.02
NA
5.09
<5
NA
<5
NA
NA
NA
NA
NA
NA
<0.018
0.17
<0.054
<0.038
<0.054
72
78
22.9
<0.2
BW-1 DUP
06/02/2015
NA
NA
5.02
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-1
10/14/2015
NA
NA
2.98
NA
NA
9
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-1
12/02/2015
5.16
5.08
6.81
13
14
16
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-I
01/11/2016
6.8
6.82
7.24
24
22
19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-1 FIN
01/11/2016
NA
NA
7.19
NA
NA
19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
3W-1
04/20/2016
NA
NA
6.66
NA
NA
13
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
03/06/2015
3.29
NA
18.4
<5
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/04/2015
NA
NA
NA
NA
NA
NA
0.88
1.95
<0.00005
<0.00005
<0.00005
0.00332
0.242
<0.047
<0.042
<0.053
1.44
1720
<10
12.9
6.62
BW-2S
06/05/2015
2.35
NA
47.3
<5
NA
10
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
09/30/2015
1.56
1.42
4.08
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
12/02/2015
1.85
1.66
4.42
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
01/12/2016
1.21
1.2
3.08
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S FIN
01/12/2016
NA
NA
2.6
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
03/07/2016
1.07
1.17
5.08
<5
6
<5
3.06
<3
<0.00005
<0.00005
<0.00005
0.000393
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S END
03/07/2016
NA
NA
4.07
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S
03/05/2015
2.8
NA
3.44
6
NA
3
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S
06/03/2015
3.01
NA
3.68
<5
NA
<5
NA
NA
NA
NA
NA
NA
0.074
<0.047
<0.042
<0.053
<0.042
3800
210
45.5
<0.072
BW-3S
09/30/2015
2.62
3.2
3.44
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S
12/02/2015
2.47
2.67
2.63
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S
01/11/2016
2.6
2.54
2.95
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S FIN
01/11/2016
NA
NA
2.96
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S
03/07/2016
2.68
2.57
2.82
7
<5
<5
1.79
<3
<0.00005
<0.00005
<0.00005
0.000157j
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3S END
03/07/2016
NA
NA
2.83
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
06/05/2015
<0.3
NA
<0.3
<5
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
12/01/2015
<0.3
<0.3
<0.3
<5
7
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
01/11/2016
<0.3
<0.3
<0.3
<5
<5
10
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1 DUP
01/11/2016
<0.3
<0.3
<0.3
<5
<5
10
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1 FIN
01/11/2016
NA
NA
<0.3
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1 DUP FIN
01/11/2016
NA
NA
<0.3
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
04/20/2016
NA
NA
NA
NA
NA
NA
1.32
3.78
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Lower Yorktown
BW-2I
03/05/2015
1.45
NA
8.88
10
NA
7
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I
06/04/2015
2.05
NA
36.6
6
NA
19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I
09/30/2015
1.79
61.4
11.4
<5
<50
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I
12/02/2015
7.83
6.06
79
<5
<5
29
NA
NA
NA
NA
NA
NA
RNA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I
01/12/2016
3.66
4.08
33.7
<5
<5
977
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I FIN
01/12/2016
NA
NA
31.2
NA
NA
18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I
03/07/2016
2.51
2.89
27.9
9
<5
22
2.24
<3
<0.00005
<0.00005
<0.00005
0.00973
NA
NA
NA
NA
NA
NA
NA
NA
BW-2I END
03/07/2016
NA
NA
24.5
NA
NA
18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I
03/04/2015
1.67
NA
5.69
5
NA
6
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I
06/03/2015
1.31
NA
2.46
15
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I
12/02/2015
1.88
1.83
2.57
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I
01/11/2016
1.37
1.49
2.04
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I FIN
01/11/2016
NA
NA
2.12
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I
03/07/2016
1.68
1.63
2.61
8
<5
<5
1.72
3.68
<0.00005
<0.00005
<0.00005
0.000434
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3I END
03/07/2016
NA
NA
2.53
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
I NA
NA
NA
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xlsx Page 4 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
PH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Alkalinity
Aluminum
Aluminum
Aluminum
Antimony
Antimony
Antimony
Arsenic
Arsenic
Arsenic
Barium
Barium
Barium
Beryllium
Beryllium
Beryllium
Bi
carbonate
Alkalinity
BOD
Boron
Boron
Boron
Cadmium
Cadmium
Cadmium
DIS
DIS (0.1u)
TOT
DIS
DIS (01u)
TOT
DIS
DIS (01u)
TOT
DIS
DIS (01u)
TOT
DIS
DIS (0.1u)
TOT
DIS
DIS (0.1u)
TOT
DIS
DIS (0.1u)
TOT
Reporting Units
P 9
S.U.
ft
De C
9
umhos
/cm
mg/I
mV
mV
NTUs
mg/I
mg/1
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
BW-2D 03/05/2015 12.5 27.82 10
1 3609 j 1.14
1 -31
174
4.55
1 10.5
1 530 1 1650 1 NA 1810 11 NA 11 1.21 NA <1 131 NA 121 11 NA 11 15 NA <50
NA <50 <1 NA 11
BW-2D 06/03/2015
11.5
28.63
20
1 1040
1 0.4
-257
-52
2
1 <0.5
1 190
1 1200
1 NA
1080
1 1.01
NA
<1
11
NA
1.01
47
NA
50
<1
NA
<1
<10
NA
<50
NA
<50
I <1
NA
11
BW-3D
03/05/2015
7.2
1.08
17
182
0.22
-111
94
6.19
0.5
77
15
NA
66
<1
NA
<1
<1
NA
<1
49
NA
51
<1
NA
<1
76
NA
<50
NA
<50
<1
NA
<1
BW-3D
06/03/2015
7.3
2.41
19
193
0.1
-251
-46
2.3
2
84
<5
NA
23
<1
NA
<1
<1
NA
<1
46
NA
45
<1
NA
<1
84
NA
<50
NA
<50
<1
NA
<1
BW-3D
12/02/2015
7.3
1.00
18
191
0.2
-115
90
0.48
1
87
<5
6
7
<1
<1
<1
<1
<1
<1
52
50
52
<1
<1
<1
87
NA
<50
<50
<50
<1
<1
<1
BW-3D DUP
12/02/2015
7.3
1.00
18
191
0.2
-115
90
0.48
1
82
<5
<5
6
<1
<1
<1
<1
<1
<1
51
51
50
<1
<1
<1
82
NA
<50
<50
<50
<1
<1
<1
BW-3D
01/11/2016
6.6
0.70
15
173
0.33
-57
148
1
0.5
84.1
<5
<5
47
<1
<1
<1
<1
<1
<1
52
52
56
<1
<1
<1
84.1
NA
<50
<50
<50
<1
<1
<1
BW-3D FIN
01/11/2016
6.6
0.70
15
173
0.33
-57
148
1
0.5
NA
NA
NA
331
NA
NA
<1
NA
NA
<1
NA
NA
57
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1
BW-3D
03/07/2016
7.2
0.94
17
178
0.24
-72
133
1.34
1
85.6
<5
<5
29
<1
<1
<1
<1
<1
<1
52
52
56
<1
<1
<1
85.6
NA
<50
<50
<50
<1
<1
<1
BW-3D END
03/07/2016
7.2
0.94
17
178
0.24
-72
133
0.81
1
NA
NA
NA
29
NA
NA
<1
NA
NA
<1
NA
NA
53
NA
NA
<1
NA
NA
NA
NA
<50
NA
NA
<1
Prepared by: BER Checked by: VTV
Notes:
-Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
Spec Cond = Specific Conductance Deg C = Degrees Celsius NTU = Nephelometric turbidity unit DO = Dissolved oxygen
DUP = Duplicate umhos/cm = Micro mhos per centimeter NE = Not established ORP = Oxidation -Reduction Potential
S.U. = Standard Unit mg/I = Milligram per liter DIS = Dissolved Eh = Oxidation Potential
ft = Feet mV = Millivolts Temp = Temperature NM = Not measured
NA = Not analyzed ug/I = Microgram per liter TOT= Total pCi/I = picocuries per liter
mg - N/L = Milligram nitrogen per liter NO = Not Detected BOD = Biochemical oxygen demand COD = chemical oxygen demand
< = Concentration not detected at or above the reporting limit
* = Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April 1, 2013.
j = indicates concentration reported below Practical quantitation Limit (PQL), but above Method Detection Limit (MDL) and therefore concentration is estimated.
B = Target analyte detected in method blank at or above the reporting limit.
B2 = Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for complicance purposes.
M1 = Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
Groundwater sample IDs having "End" and "Fin" were collected for unfiltered total metals analysis following the collection of filtered groundwater samples. Data for these samples is used only to evaluate the potential for colloidal transport.
P:\Duke Energy Progress.1026\509. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xisx Page 5 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Calcium
Carbonate
Alkalinity
Chloride
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Chromium
Chromium
Cobalt
Cobalt
Cobalt
COD
Copper
Copper
Copper
Fluoride
Iron
Iron
Iron
Lead
Lead
Lead
Lithium
Magnesium
Manganese
Manganese
Manganese
Mercury
Mercury
Mercury
Methane
TOT
DIS
DIS(0.1u)
TOT
DIS
DIS(0.1u)
TOT
DIS
DIS(0.1u)
TOT
DIS
DIS (0.1u)
TOT
DIS
DIS (01u)
TOT
TOT
DIS
DIS (01u)
TOT
DIS
DIS (01u)
TOT
Reporting Units
mg/1
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
BW-213 03/05/2015
352 380 3.1 NA NA
22.3
NA 24.5 11 NA 11
NA
1.15 NA
1.27 NA
110 NA 1 17
11 NA 11 NA 0.007 15 NA <5
<0.05
NA 10.05 12
BW-2D 06/03/2015
55.4
100
4.4
NA
NA
1.33
NA
1.32
11
NA
<i
NA
5.53
NA
<1
NA
<10
NA
<10
1.16
NA
<1
NA
0.232
<5
NA
<5
<0.05
NA
<0.05
19
BW-3D
03/05/2015
29.2
<10
3
NA
NA
<1
NA
<1
<1
NA
<1
NA
<1
NA
<1
NA
599
NA
721
<1
NA
<1
NA
1.04
29
NA
31
<0.05
NA
<0.05
15
BW-3D
06/03/2015
27.7
<10
3.2
NA
NA
<1
NA
<1
<1
NA
<1
NA
<1
NA
<1
NA
998
NA
1090
<1
NA
<1
NA
1.02
40
NA
41
<0.05
NA
<0.05
120
BW-3D
12/02/2015
30
<10
3.3
<0.03
NA
<1
<1
<1
<1
<1
<1
NA
<1
<1
1.47
NA
1330
1320
1550
<1
<1
<1
NA
1.11
37
38
39
<0.05
<0.05
<0.05
190
BW-3D DUP
12/02/2015
28.9
<10
3.4
<0.03
NA
<1.
<1
<1
U.
<1
<1
NA
<1
<1
<1
NA
1360
1360
1360
<1
<1
<1
NA
1.07
38
38
36
<0.05
<0.05
<0.05
170
BW-3D
01/11/2016
27.2
<5
3.5
0.076
NA
<1
<1
<1
<1
<1
<1
NA
<1
<1
<1
NA
705
675
837
<1
<1
<1
NA
1.03
23
23
25
<0.05
<0.05
<0.05
37.2
BW-3D FIN
01/11/2016
26.6
NA
NA
NA
NA
NA
NA
1.18
NA
NA
3.29
NA
NA
NA
1
NA
NA
NA
1270
NA
NA
<1
NA
1.01
NA
NA
27
NA
NA
<0.05
NA
BW-3D
03/07/2016
26.7
<5
3.2
<0.03
NA
<1
<1
<i
<1
<1
<1
NA
<1
<1
<1
NA
849
874
1040
<1
<1
<1
NA
1.01
26
26
27
<0.05
<0.05
<0.05
29.4
BW-3D END
03/07/2016
25.4
NA
NA
NA
NA
NA
NA
<1
NA
NA
<1
NA
NA
NA
<1
NA
NA
NA
945
NA
NA
<1
NA
0.973
NA
NA
25
NA
NA
<0.05
NA
Prepared by: BER Checked by: VTV
Notes:
- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
Spec Cond = Specific Conductance Deg C = Degrees Celsius NTU = Nephelometric turbidity unit DO = Dissolved oxygen
DUP = Duplicate umhos/cm = Micro mhos per centimeter NE = Not established ORP = Oxidation -Reduction Potential
S.U. = Standard Unit mg/I = Milligram per liter DIS = Dissolved Eh = Oxidation Potential
it = Feet mV = Millivolts Temp = Temperature NM = Not measured
NA = Not analyzed ug/I = Microgram per liter TOT= Total pCi/I = picocuries per liter
mg - N/L = Milligram nitrogen per liter NO = Not Detected BOD = Biochemical oxygen demand COD = chemical oxygen demand
< = Concentration not detected at or above the reporting limit
* = Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April 1, 2013.
j = indicates concentration reported below Practical quantitation Limit (PQL), but above Method Detection Limit (MDL) and therefore concentration is estimated.
B = Target analyte detected in method blank at or above the reporting limit.
B2 = Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for complicance purposes.
M1 = Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
Groundwater sample IDs having "End" and "Fin" were collected for unfiltered total metals analysis following the collection of filtered groundwater samples. Data for these samples is used only to evaluate the potential for colloidal transport.
P:\Duke Energy Progress.1026\509. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xisx Page 6 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Molybdenum
Molybdenum
Molybdenum
Nickel
Nickel
Nickel
Nitrate
as t) Nitrate
Nitrite
Potassium
Selenium
Selenium
Selenium
Silver
Sodium
Strontium
Strontium
Strontium
Sulfate
Sulfide
Thallium
Thallium
Thallium
Total
Dissolved
Solids
Total
Organic
Carbon
Total
Organic
Halides
Total
Suspended
Solids
DIS
DIS (0.1u)
TOT
DIS
DIS (0 1u)
TOT
TOT
DIS
DIS (0 1u)
TOT
TOT
TOT
DIS
DIS (0 1u)
TOT
DIS
DIS (0 1u)
TOT
Reporting Units
ug/1
ug/I
ug/I
ug/I
ug/I
ug/I
mg-N/L mg/I
mg/I
mg/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
ug/I
ug/I
mg/I
mg/I
ug/I
ug/I
ug/I
mg/I
mg/I
mg/I
mg/I
BW-2D
03/05/2015
5.65
NA
5.95
<1
NA
11
10.01 NA
NA
5.52
1.35
NA
1.4
NA
8.56
1210
NA
1100
3.8
10.1
10.2
NA
<0.2
740
32
NA
27
BW-ZD
06/03/2015
6.27
NA
4.99
<1
NA
11
<0.01 NA
NA
12.7
<1
NA
<1
NA
8.45
458
NA
454
7.2
<0.1
<0.2
NA
<0.2
240
7.6
NA
15
BW-3D
03/05/2015
<1
NA
<1
<1
NA
<1
<0.01
NA
NA
1.54
<1
NA
<1
NA
6.94
153
NA
157
0.53
<0.5
<0.2
NA
<0.2
110
0.975
NA
6
BW-3D
06/03/2015
1.63
NA
2.05
<1
NA
<1
<0.01
NA
NA
1.62
<1
NA
<1
NA
7.32
153
NA
156
0.21
<0.1
<0.2
NA
<0.2
120
2.3
NA
<5
BW-3D
12/02/2015
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
1.53
<1
<1
<1
NA
7.27
161
161
164
<0.1
<0.1
<0.2
<0.2
<0.2
110
1.1
NA
<5
BW-3D DUP
12/02/2015
<1
<1
<t
<1
<1
<1
<0.01
NA
NA
1.49
<1
<1
<1
NA
7.26
162
163
156
<0.1
<0.1
<0.2
<0.2
<0.2
140
0.938
NA
<5
BW-3D
01/11/2016
<1
<1
<1
<1
1.96
<1
0.05
NA
NA
1.44
<1
<1
<1
NA
6.99
155
154
156
0.16
<0.1
<0.2
<0.2
<0.2
110
1
NA
6
BW-3D FIN
01/11/2016
NA
NA
<1
NA
NA
2.41
NA
NA
NA
1.44
NA
NA
<1
NA
6.89
NA
NA
155
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
BW-3D
03/07/2016
<1
<1
<1
<1
<1
<1
<0.01
NA
NA
1.46
<1
<1
<1
NA
7.2
149
150
162
0.17
<0.1
<0.2
<0.2
<0.2
120
0.759
NA
6
BW-3D END
03/07/2016
NA
NA
<1
NA
NA
<1
NA
NA
NA
1.43
NA
NA
<1
NA
7.09
NA
NA
156
NA
NA
NA
NA
<0.2
NA
NA
NA
NA
Prepared by: BER Checked by: VTV
Notes:
- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
Spec Cord = Specific Conductance Deg C = Degrees Celsius NTU = Nephelometric turbidity unit DO = Dissolved oxygen
DUP = Duplicate umhos/cm = Micro mhos per centimeter NE = Not established ORP = Oxidation -Reduction Potential
S.U. = Standard Unit mg/I = Milligram per liter DIS = Dissolved Eh = Oxidation Potential
ft = Feet my = Millivolts Temp = Temperature NM = Not measured
NA = Not analyzed ug/I = Microgram per liter TOT= Total pCi/I = picocunes per liter
mg - N/L = Milligram nitrogen per liter NO = Not Detected BOD = Biochemical oxygen demand COD = chemical oxygen demand
< = Concentration not detected at or above the reporting limit
* = Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April 1, 2013.
j = indicates concentration reported below Practical quantitation Limit (PQL), but above Method Detection Limit (MDL) and therefore concentration is estimated.
B = Target analyte detected in method blank at or above the reporting limit.
B2 = Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for complicance purposes.
M1 = Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
Groundwater sample IDs having "End" and "Fin" were collected for unfiltered total metals analysis following the collection of filtered groundwater samples. Data for these samples is used only to evaluate the potential for colloidal transport.
P:\Duke Energy Progmss.1026\509. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xisx Page 7 of 8

TABLE 4-1
BACKGROUND ANALYTICAL RESULTS GROUNDWATER SAMPLING ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
Vanadium
Vanadium
Vanadium
Zinc
Zinc
Zinc
Radium-226
Radium-228
Uranium-233
Uranium-234
Uranium-236
Uranium-238
As(III)
As(V)
MMAs
DMAs
As (UK)
Fe(II)
Fe(III)
Mn(II)
Mn(IV)
DIS
DIS (0.1u)
TOT
DIS
DIS (01u)
TOT
Reporting Units
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
pCi/I
pCi/I
ug/mL
ug/mL
ug/mL
ug/mL
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
BW-2D 03/05/2015 3.88 NA 4.75 <5 NA 13
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA NA
BW-2D 06/03/2015
20
NA
19.3
16
NA
15
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D
03/05/2015
<0.3
NA
<0.3
7
NA
11
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D
06/03/2015
<0.3
NA
<0.3
<5
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D
12/02/2015
<0.3
<0.3
<0.3
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D DUP
12/02/2015
<0.3
<0.3
<0.3
<5
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D
01/11/2016
<0.3
<0.3
<0.3
47
<5
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D FIN
01/11/2016
NA
NA
0.653
NA
NA
13
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D
03/07/2016
<0.3
<0.3
<0.3
5
<5
<5
2.71
<3
<0.00005
<0.00005
<0.00005
<0.0002
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-3D END
03/07/2016
NA
NA
<0.3
NA
NA
<5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Prepared by: BER Checked by: VTV
Notes:
- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013.
Spec Cond = Specific Conductance Deg C = Degrees Celsius NTU = Nephelometric turbidity unit DO = Dissolved oxygen
DUP = Duplicate umhos/cm = Micro mhos per centimeter NE = Not established ORP = Oxidation -Reduction Potential
S.U. = Standard Unit mg/I = Milligram per liter DIS = Dissolved Eh = Oxidation Potential
ft = Feet mV = Millivolts Temp = Temperature NM = Not measured
NA = Not analyzed ug/I = Microgram per liter TOT= Total pCi/I = picocuries per liter
mg - N/L = Milligram nitrogen per liter NO = Not Detected BOD = Biochemical oxygen demand COD = chemical oxygen demand
< = Concentration not detected at or above the reporting limit
* = Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April 1, 2013.
j = indicates concentration reported below Practical quantitation Limit (PQL), but above Method Detection Limit (MDL) and therefore concentration is estimated.
B = Target analyte detected in method blank at or above the reporting limit.
B2 = Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for complicance purposes.
M1 = Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
Groundwater sample IDs having "End" and "Fin" were collected for unfiltered total metals analysis following the collection of filtered groundwater samples. Data for these samples is used only to evaluate the potential for colloidal transport.
P:\Duke Energy Progress.1026\509. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-SWeatherspoon_Background Analytical Results CSA Rounds 1-6_2016-06-06.xisx Page 8 of 8

TABLE 4-2
PROVISIONAL BACKGROUND CONCENTRATIONS SURFICAL GROUNDWATER
ROUNDS 1- 6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical
Parameter
Reporting
Units
NC21L
Standard
Number
of wells
Number
of Data
Sets
Number of
Detections
Frequency
of
Detection
Surficial
Detected
Background
Concentration
Range
Provisional
Background
g
Concentration**
pH
S.U.
6.5-8.5
4
33
33
100.00
3.7 - 9.8
3.7 - 9.8°
Arsenic
Ng/I
10
4
33
3
9.09
1.05 - 1.46
1.171
Beryllium
Pg/I
4*
4
19
0
0.00
ND
ND
Boron
ug/I
700
4
32
10
31.25
52.6 - 86.8
129.2
Cadmium
Ng/I
2
4
33
7
21.21
0.22 - 5.2
4.177
Chromium
Ng/I
10
4
32
11
34.38
1.42 - 2.51
3.62
Chromium (VI)
pg/I
0.07A
4
10
7
70.00
0.032 - 0.08
0.196
Cobalt
Ng/I
1*
4
19
0
0.00
ND
ND
Iron
Pg/I
300
4
32
30
93.75
39 - 5,240
12,233
Lead
Ng/I
15
4
33
13
39.39
1.09 - 2.22
1.749
Manganese
Pg/I
50
4
31
31
100.00
8 - 46
73.3
Nickel
Ng/I
100
4
32
1
3.13
1.22
1.22'
Sodium
mg/I
NE
4
16
16
100.00
1.41 - 10.2
22.48
Strontium
Ng/I
NE
4
18
17
94.44
14824.00
56
Sulfate
mg/I
250
4
31
31
100.00
3.6 - 59
58.4
Thallium
Ng/I
0.2*
4
33
7
21.21
0.1 - 0.66
0.58
TDS
mg/I
500
4
31
27
87.10
46 - 222
323.9
Vanadium
Ng/I
0.3*
4
18
15
83.33
2.6 - 7.24
13.05
Zinc
Pg/I
1000
4
32
13
40.63
8 - 23
67.72
vreparea oy: muu l necKea oy: rl�
Notes:
0= Indicates comparative value
Wells Include: BW-01, BW-025, 3W-035, MW-01, W-02, W-06.
NE = Not Established
ND = Not detected above reporting limits
mg/I = milligrams per liter
pg/I = micrograms per liter
TDS = Total dissolved solids
S.U. = Standard Unit
NC DHHS Health Screening Level
*Interim Maximum Allowable Concentration (IMAC) of the 15A NCAC 02L Standard, Appendix 1, April 2013.
**Provisional background concentration is the 95 % Upper Prediction Limit.
'Provisional background concentration is the maximum observed background concentration.
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 4-2 Provisional Surficial BG Concentrations Rounds 1-6 STATS.xlsx Page 1 of 1

TABLE 4-3
PROVISIONAL BACKGROUND CONCENTRATION LOWER YORKTOWN GROUNDWATER ROUNDS 1-6
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical
Y
Parameter
Reporting
P g
Units
NC2L
Standard
Number of
wells
Number of
Data Sets
Number of
Detections
Frequency
Qof Y
Detection
Lower Yorktown
Detected
Background
Concentration
Range
provisional
Back round
g
Concentration**
pH
S.U.
6.5-8.5
2
10
10
100.00
5.5 - 7.7
5.5 - 7.7°
Antimony
ug/I
1*
2
10
0
0.00
ND
ND
Arsenic
Ng/I
10
2
10
6
60.00
1.01 - 9.07
42.19
Boron
Pg/I
700
2
10
1
10.00
54
54'
Chromium
Pg/I
10
2
10
9
90.00
1.16 - 30.8
129
Chromium (VI)
ug/I
0.07A
2
5
4
80.00
0.047 - 0.18
1.604
Cobalt
ug/I
1*
2
10
2
20.00
1.31 - 1.53
2.21
Iron
ug/I
300
2
10
10
100.00
882 - 7,850
18,404
Lead
Ng/I
15
2
10
5
50.00
1.29 - 10.5
63.26
Manganese
ug/I
50
2
10
10
100.00
19- 60
152
Sodium
mg/I
NE
2
11
11
100.00
4.28 - 30.4
32.88
Strontium
Pg/I
NE
2
10
10
100.00
36 - 255
255°
Sulfate
mg/I
250
2
9
8
88.89
0.12 - 13
30.92
Thallium
pg/I
0.2*
2
10
0
0.00
ND
ND
TDS
mg/I
500
2
9
9
100.00
47 - 440
1,266
Vanadium
ug/I
0.3*
2
10
10
100.00
2.04 - 36.6
118
Zinc
ug/I
1000
2
9
4
44.44
6 - 22
139
Prepared by: MCD Checked by: HHS
Notes:
= Indicates comparative value
Wells Include: BW-02I and BW-03I
NE = Not Established
ND = Not detected above reporting limits
mg/I = milligrams per liter
pg/I = micrograms per liter
TDS = Total dissolved solids
S.U. = Standard Unit
NC DHHS Health Screening Level
*Interim Maximum Allowable Concentration (IMAC) of the 15A NCAC 02L Standard, Appendix 1, April 2013.
-Provisional background concentration is the 95% Upper Prediction Limit.
°Provisional background concentration is the maximum observed background concentration.
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\
Table 4-3 Provisional Lower Yorktown BG Concentrations Rounds 1-6 STATS_20160616.xlsx Page 1 of 1

TABLE 4-4
SURFICIAL UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISION BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
mV
mV
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
ISA NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07A
0.07-
10
1*
300
35
50
100
NE
NE
250
0.2*
500
0.3*
1000
Provisional Background
3.7-9.8
NE
NE
NE
NE
NE
NE
NE
NE
NE
1.171
NO
129.2
4.177
0.196
0.196
3.623
NO
12233
3.15
73.33
1.22
22.48
56.43
58.14
0.576
323.9
13.05
67.72
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
Background
BW-1
11/16/2010
4.5
8.35
18
0
NM
NM
NM
4.5
NM
<0.5
<5
NA
NA
0.22
NA
NA
NA
NA
1390
<5
NA
<5
NA
NA
42.6
0.11
113
NA
<10
BW-1
03/01/2011
4.2
6.80
14
289
0.4
-13
192
6.28
NM
<0.5
<5
NA
<50
0.26
NA
NA
<5
NA
2040
<5
20.7
<5
NA
NA
56.3
<0.1
222 b
NA
21.2 b
BW-1
06/07/2011
4.2
7.99
18
162
0.52
-59
146
1.25
NM
<0.5
<5
NA
59.9
0.39
NA
NA
<5
NA
87.9
<5
33.4
<5
NA
NA
17.6
0.14
96
NA
<10
BW-1
10/03/2011
4.6
7.31
19
164
0.5
-149
56
0.58
NM
<0.5
<5
NA
86.8
0.23
NA
NA
<5
NA
643
<5
26.6
<5
NA
NA
35.5
0.12
92
NA
<10
BW-1
03/05/2012
4.2
5.63
16
241
0.45
-38
167
0.58
NM
<0.5
<5
NA
<50
0.32
NA
NA
<5
NA
591
<5
17.8
<5
NA
NA
56.5
0.1
209
NA
17.7
BW-1
06/04/2012
4.1
7.38
18
151
4.2
-56
149
2.2
NM
<0.5
<5
NA
52.6
<0.08
NA
NA
<5
NA
<50
<5
29.5
<5
NA
NA
38.8
0.66
92
NA
<10
BW-1
10/01/2012
4.3
8.43
20
155
0.5
214
419
0.53
NM
<0.5
<5
NA
58.3
0.31
NA
NA
<5
NA
<50
<5
28.2
<5
NA
NA
35.9
0.14
86
NA
<10
BW-1
03/11/2013
3.9
6.32
17
227
1.29
289
494
2.78
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
143
1.4
14
<5
1NA
NA
56
<0.2
150
1NA
23
BW-1
06/11/2013
4.0
6.62
19
152
0.59
318
523
1.72
NM
<1
<1
NA
69
<1
NA
NA
<5
NA
44
<1
29
<5
NA
NA
37
<0.2
85
NA
8
BW-1 DUP
06/11/2013
4.0
6.62
19
152
0.59
316
523
1.72
NM
<1
<1
NA
66
<1
NA
NA
<5
NA
43
<1
29
<5
NA
NA
37
<0.2
87
NA
<5
BW-1
10/01/2013
4.2
5.94
20
187
0.24
101
306
9.9
NM
<1
1.05
NA
<50
<1
NA
NA
<5
NA
392
<1
27
<5
NA
NA
40
<0.2
110
NA
<5
BW-1
03/06/2014
3.9
5.23
12
256
1
381
586
0.52
NM
<1
<1
NA
<50
5.2
NA
NA
<5
NA
657
1.35
16
<5
NA
NA
58
<0.2
170
NA
13
BW-1
06/04/2014
4.0
5.80
18
123
NM
345
550
1.1
NM
<1
1.18
NA
<50
<1
NA
NA
<5
NA
2140
1.56
13
<5
NA
NA
56
<0.2
170
NA
15
BW-1
10/03/2014
4.3
8.36
20
139
0.27
247
452
3.31
NM
<1
<1
NA
74
<1
NA
NA
<5
NA
283
1.1
1 22
<5
NA
NA
36
<0.2
82
NA
<5
BW-1
03/09/2015
4.1
4.55
14
179
1.34
327
532
2.88
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
162
1.14
10
<5
NA
NA
51
<0.2
130
NA
14
BW-1
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<1
<1
<1
67
<1
NA
0.017
<5
<1
253
1.1
24
<5
3.14
<1000
47
<0.2
87
5.09
<5
BW-1 DUP
06/02/2015
4.4
8.18
17
147
0.1
108
313
4.86
0.75
<1
<1
<1
67
<1
NA
NA
<5
<1
231
1.05
25
<5
3.19
<1000
48
<0.2
97
5.02
<5
BW-1
10/14/2015
4.2
8.78
19
756
0.3
244
449
0.46
NM
<1
<1
<1
70
<1
NA
NA
<5
<1
39
1.13
32
<5
2.86
28
59
0.302
96
2.98
9
BW-1
12/02/2015
4.2
6.87
18
213
1.03
331
536
6.01
0
<1
<1
<1
62
<1
0.056
NA
2.2
<1
313
2.22
35
1.22
11.9
40
57
<0.2
130
6.81
16
BW-1
01/11/2016
3.7
4.58
15
149
1.4
314
519
1.41
0
<1
<1
<1
60
<1
0.08
NA
12.33
<1
124
1.37
9
<1
6.47
21
46
<0.2
110
7.24
19
BW-1
04/20/2016
4.1
4.95
17
120
0.4
262
467
3.58
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
482
1.12
12
<5
4.78
18
35
<0.2
86
6.66
13
BW-2S
03/06/2015
6.3
5.01
10
240
0.1
-80
126
216
2
<1
2.39
<1
<50
<1
NA
NA
8.61
<1
2570
7.85
31
2.17
6.26
146
9.1
<0.2
280
18.4
<5
BW-2S
06/04/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
0.04
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
BW-2S
06/05/2015
5.1
9.85
18
86
0.3
-92
113
>1000
NM
<1
3.93
<1
<50
<1
NA
NA
25.9
<1
6420
42.1
25
2.9
11.6
39
8.5
<0.2
520
47.3
10
BW-2S
09/30/2015
5.0
14.10
22
66
2.1
21
226
29
NM
<1
<1
<1
<50
<1
NA
NA
1.54
<1
2150
1.09
19
<1
4.33
19
NA
<0.2
NA
4.08
<5
BW-2S
12/02/2015
9.8
8.33
18
62
0.4
120
325
34.6
1.5
<1
<1
<1
<50
<1
0.063
NA
1.42
<1
1240
1.66
15
<1
4.34
18
7.5
<0.2
162
4.42
<5
BW-2S
01/12/2016
4.7
5.85
13
57
1.06
181
386
9.58
1
<1
<1
<1
<50
<1
<0.03
NA
I<1
<1
1670
<1
1 17
<1
4.04
19
8.6
<0.2
46
13.08
<5
BW-2S
03/07/2016
5.6
5.37
16
114
0.21
1
1 206
61
1.5
<1
1.46
<1
<50
I <1
0.032
NA
2.51
<1
2750
2.17
31
<1
4.61
36
7.9
<0.2
110
5.08
<5
BW-3S
03/05/2015
5.4
3.40
18
112
0.25
41
246
14.3
4.5
<1
<1
<1
<50
<1
NA
NA
1.98
<1
5240
<1
46
<1
10
21
5.3
<0.2
69
3.44
8
BW-3S
06/03/2015
5.5
5.62
19
99
0.4
-108
97
19.5
3
<1
<1
<1
<50
<1
NA
0.034
2.18
<1
4490
<1
40
<1
8.75
21
9.1
<0.2
75
3.68
<5
BW-3S
09/30/2015
5.2
7.38
22
84
0.3
58
263
7.89
NM
<1
<1
<1
<50
<1
NA
NA
1.71
<1
3210
<1
33
<1
7.46
16
NA
<0.2
NA
3.44
<5
BW-3S
12/02/2015
5.3
3.94
18
99
0.33
7
212
5.14
NM
<1
<1
<1
<50
<1
0.049
NA
1.44
<1
4100
<1
36
<1
9.78
21
7.5
1 <0.2
74
2.63
<5
BW-3S
01/11/2016
5.1
3.50
15
104
0.29
45
250
2.25
1.5
<1
<1
<1
<50
<1
0.047
NA
1.59
<1
3920
<1
45
<1
10.2
21
10
<0.2
60
2.95
<5
BW-3S
03/07/2016
5.4
4.12
14
87
0.17
58
263
2.9
3
<1
<1
I<1
<50
<1
0.037
NA
11.61
<1
3540
1 <1
1 39
<1
8.11
20
7.5
<0.2
70
2.82
<5
MW-1
03/19/1990
6.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
180
ND
NA
NA
NA
NA
13
NA
10
NA
NA
MW-1
07/05/1990
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
140
ND
NA
NA
NA
NA
9.2
NA
56
NA
NA
MW-1
11/05/1990
7.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
90
ND
NA
NA
NA
NA
15
NA
44
NA
NA
MW-1
03/06/1991
7.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.1
NA
NA
NA
NA
300
1.4
NA
NA
NA
NA
17
NA
130
NA
NA
MW-1
07/01/1991
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
500
ND
NA
NA
NA
NA
10
NA
110
NA
NA
MW-1
11/06/1991
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.4
NA
NA
NA
NA
360
3.9
NA
NA
NA
NA
7.3
NA
60
NA
NA
MW-1
03/02/1992
7.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.8
NA
NA
NA
NA
ND
ND
NA
NA
NA
NA
11
NA
58
NA
NA
MW-1
07/07/1992
4.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.3
NA
NA
NA
NA
230
ND
NA
NA
NA
NA
10
NA
40
NA
NA
MW-1
11/04/1992
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
<50
<1
NA
NA
NA
NA
6.7
NA
64
NA
NA
MW-1
03/10/1993
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
2300
<1
NA
NA
NA
NA
10
NA
38
NA
NA
MW-1
07/12/1993
7.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
3000
<1
NA
NA
NA
NA
15
NA
39
NA
NA
MW-1
11/08/1993
5.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
800
<1
NA
NA
NA
NA
8.7
NA
44
NA
NA
MW-1
03/07/1994
4.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
0.2
NA
NA
NA
NA
1100
<1
NA
NA
NA
NA
12
NA
36
NA
NA
MW-1
07/12/1994
7.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
4700
<1
NA
NA
NA
NA
7.8
NA
32
NA
NA
MW-1
10/31/1994
4.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
17000
<1
NA
NA
NA
NA
7.9
NA
35
NA
NA
MW-1
03/07/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
6700
<5
NA
NA
NA
NA
8.1
NA
32
NA
NA
MW-1
07/11/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
4
NA
NA
<0.1
NA
NA
NA
NA
18000
<1
NA
NA
NA
NA
11
NA
56
NA
NA
MW-1
03/05/1996
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.4
NA
NA
0.8
NA
NA
NA
NA
1900
4
NA
NA
NA
NA
NA
NA
523
NA
NA
MW-1
03/18/1997
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
1.8
NA
NA
<0.5
NA
NA
NA
NA
9800
2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
03/09/1998
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<3
NA
NA
<0.5
NA
NA
NA
NA
3700
<2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-1
12/13/2006
4.5
16.81
65
0
NM
NM
NM
NM
NM
0.69
0.12
<0.051
16.4
0.024
NA
NA
0.23
NA
536
0.16
7.7
0.43
NA
NA
3.36
0.051
10
NA
1.4
MW-1
03/14/2007
4.5
16.80
62
NM
NM
NM
NM
NM
NM
<3
Q
<1
11
<1
NA
NA
<5
NA
1270
<3
8
<5
NA
NA
5
<1
22
NA
<5
MW-1
11/13/2007
4.5
21.69
67
102
NM
NM
NM
NM
NM
<2.5
<2
<1
22
<1
NA
NA
<5
NA
401
<5
<5
<5
NA
NA
24
<1
52
NA
30
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-4 Surficial Unit GW Exceedances Incorporating Provisional Background.xlsx Page 1 of 4

TABLE 4-4
SURFICIAL UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISION BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
u/cm
mg/I
mV
my
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
ISA NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
Soo
0.3*
1000
Provisional Background
3.7-9.8
NE
NE
NE
NE
NE
NE
NE
NE
NE
1.171
NO
129.2
4.177
0.196
0.196
3.623
ND
12233
3.15
73.33
1.22
22.48
56.43
58.14
0.576
323.9
13.05
67.72
Sample ID
Sample Collection Date
Field Parameters
Analytical Results
MW-1
03/18/2008
3.8
17.12
62
54
NM
NM
NM
NM
NM
2
<5
<1
20
<2
NA
NA
5
NA
313
<3
<5
<5
NA
NA
8
<5
33
NA
12
MW-1
11/11/2008
4.7
18.15
67
39
NM
NM
NM
NM
NM
<2.5
<2
<1
8
<1
NA
NA
<5
NA
414
<2
7
<5
NA
NA
<10
<1
63
NA
25
MW-1
03/24/2009
4.0
17.15
62
36
NM
NM
NM
NM
NM
<1
<1
<1
45
<1
NA
NA
5
NA
408
2
6
1
NA
NA
<5
<1
35
NA
23
MW-1
10/15/2009
4.1
19.35
67
48
NM
NM
NM
NM
NM
<1
<1
<1
17.2
<1
NA
NA
4
NA
1520
2
6
2
NA
NA
7
<1
25
NA
9
MW-1
03/17/2010
3.8
16.74
61
41
NM
NM
NM
NM
NM
<1
<1
<1
13
<1
NA
NA
4
NA
1400
<1
4
<1
NA
NA
6
<1
9
NA
<1
MW-1
06/05/2015
4.0
17.88
17
44
2.03
206
411
3.43
<0.5
<1
<1
<1
<50
<1
NA
NA
<1
<1
323
<1
10
<1
1.41
9
5
<0.2
<25
<0.3
<5
MW-1
12/01/2015
4.6
17.72
19
1 40
12.27
246
1451
1 3.59
1 0
<1
<1
I<S
1 <50
1 <S
1<0.03
NA
<1
<1
66
1<S
1 8
<1
1.44
1 8
15.6
1 <0.2
I <25
<0.3
<5
MW-1
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
223
<1
11
<1
1.46
9
4.3
<0.2
<21
10.3
10
MW-1 DUP
01/11/2016
4.1
16.32
17
41
1.87
193
398
2.88
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
270
<1
11
<1
1.46
9
4.6
<0.2
<25
<0.3
10
MW-1
04/20/2016
4.5
16.89
17
38
1.67 S
210
415
1.96
NM
<1
<1
<1
<50
<1
NA
NA
<1
<1
NA
<1
NA
NA
NA
NA
3.6
<0.2
<25
NA
NA
Surficial
AW-1S
03/03/2015
4.5
11.64
16
46
3.46
196
401
4.88
<0.5
<1
<1
<1
<50
<1
NA
NA
<1
<1
283
<1
13
2.04
1.42
9
16
<0.2
25
<0.3
<5
AW-1S
06/02/2015
4.7
12.95
21
30
2.79
210
415
2.68
NM
<1
<1
<1
<50
<1
NA
0.016
<1
<1
12
<1
<5
<1
1.14
7
4.4
<0.2
<25
<0.3
<5
AW-2S
03/03/2015
4.1
10.23
14
615
1.82
11
216
5.31
3.5
<1
1.02
10.3
130
1.85
NA
NA
16.6
65.1
10900
2.22
859
140
4.44
241
Soo
<0.2
520
0.34
379
AW-2S DUP
03/03/2015
4.1
10.23
14
615
1.82
11
216
5.31
3.5
<1
<1
10
138
1.92
NA
NA
15.3
70.3
13600
2.4
940
149
4.6
250
600
<0.2
540
<0.3
388
AW-2S
06/03/2015
3.6
12.59
19
695
1.22
326
531
0.81
3
<1
<1
9.86
117
1.89
NA
0.011
5.48
61.6
7750
3.52
982
1.30
4.39
268
710
0.237
Soo
<0.3
379
AW-2S
09/29/2015
3.5
13.28
24
870
0.4
375
580
3.36
NM
<1
1.11
14.2
165
3.16
NA
NA
6.46
109
10500
6.18
1270
216
6.46
386
NA
0.364
NA
0.405
635
AW-3S
03/04/2015
5.8
3.16
24
121
3.88
-2
203
217
<0.5
<1
<1
<1
<50
<1
NA
NA
3.52
<1
4800
1.69
39
1.46
20.3
20
14
<0.2
240
3.99
14
AW-3S
06/04/2015
5.8
5.12
20
136
0.6
-76
129
23
3.5
<1
4.97
<1
<50
<1
NA
0.02
1.36
<1
17000
<1
57
<1
11.3
20
1.1
<0.2
80
2.65
12
AW-3S
09/30/2015
5.7
7.35
24
94
0.4
-98
107
9.87
NM
<1
3.7
<1
<50
<1
NA
NA
<1
<1
11900
<1
24
<1
6.49
10
NA
<0.2
NA
2.04
<5
CW-1
11/16/2010
5.9
4.73
18
0
NM
NM
NM
9.6
NM
<0.5
<5
NA
53.6
<0.08
NA
NA
<5
NA
2810
<5
53.4
<5
NA
NA
30.5
<0.1
93
NA
<10
CW-1
03/01/2011
6.0
3.89
13
147
0.53
-139
66
11.3
NM
<0.5
5.4
NA
<50
<0.08
NA
NA
<5
NA
3320
<5
48.7
<5
NA
NA
29.1 b
<0.1
110 b
NA
<10
CW-1
06/07/2011
5.6
5.42
21
126
0.57
-159
46
9.05
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
4140
<5
53.5
<5
NA
NA
12.5
<0.1
91
NA
<10
CW-1
10/03/2011
5.7
4.17
19
132
0.92
-173
32
5.32
NM
<0.5
<5
NA
<50
0.16
NA
NA
<5
NA
2580
<5
39.2
<5
NA
NA
15.6
<0.1
59
NA
<10
CW-1
03/05/2012
6.2
3.62
14
150
1 0.46
-88
1 117
28.4
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2060
<5
37.4
<5
NA
NA
11.6
1 <0.1
85
1 NA
<10
CW-1 DUP
03/05/2012
6.2
3.62
14
150
0.46
-88
117
28.4
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2090
<5
37
<5
NA
NA
11.7
<0.1
96
NA
<10
CW-1
06/04/2012
6.3
4.53
19
167
2.83
-120
85
3.43
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2390
<5
35.5
<5
NA
NA
12.2
<0.1
97
NA
<10
CW-1
10/01/2012
5.4
4.33
21
97
0.46
-115
90
28.9
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2590
<5
29.7
<5
NA
NA
12.1
<0.1
78
NA
<10
CW-1
03/11/2013
6.0
4.12
15
139
0.25
-9
196
12.7
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2750
<1
35
<5
NA
NA
11
<0.2
85
NA
<5
CW-1 DUP
03/11/2013
6.0
4.12
15
139
0.25
-9
196
12.7
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2580
<1
34
<5
NA
NA
11
<0.2
85
NA
<5
CW-1
06/11/2013
5.2
3.65
21
94
0.32
50
255
18.1
NM
<1
1.84
NA
<50
<1
NA
NA
<5
NA
2430
<1
39
<5
NA
NA
12
<0.2
84
NA
<5
CW-1
10/01/2013
5.2
5.70
21
94
0.49
-28
1 177
10
NM
<1
1.34
NA
<50
1.06
NA
NA
<5
NA
2130
<1
33
<5
NA
NA
11
<0.2
72
NA
<5
CW-1 DUP
10/01/2013
5.2
5.70
21
94
0.49
-28
177
10
NM
<1
1.31
NA
<50
<1
NA
NA
<5
NA
2150
<1
33
<5
NA
NA
11
<0.2
73
1 NA
<5
CW-1
03/06/2014
5.8
3.76
10
140
0.45
24
229
6.66
NM
<1
<1
NA
<50
1.18
NA
NA
<5
NA
3680
<1
45
<5
NA
NA
20
<0.2
88
NA
7
CW-1
06/04/2014
5.4
5.69
19
88
NM
-63
142
7.3
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2250
<1
42
<5
NA
NA
17
<0.2
81
NA
<5
CW-1
10/03/2014
5.4
4.40
21
121
0.26
21
226
12.4
NM
<1
<1
NA
71
<1
NA
NA
<5
NA
2090
<1
44
<5
NA
NA
16
<0.2
77
NA
5
CW-1
03/09/2015
5.9
3.69
13
138
0.31
35
240
7.58
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
2310
<1
39
<5
NA
NA
15
<0.2
83
NA
<5
CW-1
06/02/2015
5.5
5.44
19
105
0.46
-107
98
9.14
1.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
2020
<1
36
<5
6.12
<1000
14
<0.2
71
1.29
<5
CW-1
10/14/2015
5.7
4.30
20
129
0.4
45
250
3.75
NM
<1
1.34
<1
<50
<1
NA
NA
I<5
<1
2200
<1
1 45
<5
7.55
82
22
<0.2
66
0.834
<5
CW-1
12/01/2015
6.6
4.10
17
150
0.2
-145
60
9.9
1
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
1620
<1
38
<1
1 4
119
16
<0.2
83
1 0.513
<5
CW-1
01/12/2016
6.4
4.09
14
153
0.6
-11
194
9.2
0.5
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
1390
<1
42
<1
4.28
131
19
<0.2
93
1
<5
CW-1
03/07/2016
6.3
4.00
15
155
1.28
18
223
9.6
0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
1130
<1
38
<5
3.69
135
18
<0.2
83
0.733
<5
CW-2
11/16/2010
7.4
6.37
19
0
NM
NM
NM
1.1
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
453
<5
30.3
<5
NA
NA
7.4
<0.1
141
NA
<10
CW-2
03/01/2011
7.5
4.76
13
266
0.21
-129
76
0.5
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
321
<5
14
<5
NA
NA
9.2 b
<0.1
144 b
NA
<10
CW-2 DUP
03/01/2011
7.5
4.76
13
266
0.21
-129
76
0.5
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
333
<5
14.3
<5
NA
NA
9 b
<0.1
156 b
NA
<10
CW-2
03/05/2012
6.9
4.28
14
261
0.37
-60
145
1.07
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
399
<5
7.3
<5
NA
NA
8.8
<0.1
152
NA
<10
CW-2
06/11/2013
7.2
3.90
18
286
0.28
-80
125
0.54
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
371
<1
1 12
<5
I NA
NA
9.3
<0.2
160
1 NA
<5
CW-2
06/04/2014
7.5
5.34
18
222
NM
-133
72
1.6
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
388
<1
7
<5
NA
NA
10
<0.2
150
NA
<5
CW-2
10/03/2014
7.2
6.08
21
268
0.24
-67
138
2.46
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
364
<1
7
<5
NA
NA
11
<0.2
160
NA
11
CW-2 DUP
10/03/2014
7.2
6.08
21
268
0.24
-67
138
2.46
NM
<1
<1
NA
135
<1
NA
NA
<5
NA
436
<1
27
<5
NA
NA
11
<0.2
150
NA
<5
CW-2
06/02/2015
7.4
5.86
18
268
0.52
-235
-30
1.61
<0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
384
<1
10
<5
3.54
<1000
9.9
<0.2
170
<0.3
<5
CW-2
10/14/2015
7.2
4.92
20
282
0.4
52
257
0.98
NM
I <1
<1
<1
<50
<1
NA
NA
<5
<1
65
<1
<5
<5
4.24
215
7.4
<0.2
160
0.769
<5
CW-2 DUP
10/14/2015
7.2
4.92
20
282
0.4
52
257
0.98
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
65
<1
<5
<5
4.29
216
7.4
<0.2
160
0.765
<5
CW-2
12/02/2015
7.5
4.71
18
267
0.6
-30
175
1.55
ND
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
97
<1
I <5
<1
13.37
208
it
1<0.2
170
1 0.306
<5
CW-2
01/12/2016
7.5
4.64
15
260
0.54
117
322
1.89
0
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
139
<1
<5
<1
3.44
202
12
<0.2
150
0.303
<5
CW-2
03/07/2016
7.3
4.51
15
256
0.38
-71
134
5
0
<1
<1
<1
<50
<1
NA
NA
<5
<1
180
<1
6
<5
3.72
193
10
<0.2
140
0.301
<5
CW-2 DUP
03/07/2016
7.3
4.51
15
256
0.38
-71
134
5
0
<1
<1
<1
<50
<1
NA
NA
<5
<1
247
<1
8
<5
3.54
202
10
<0.2
140
<0.3
<5
CW-3
11/16/2010
6.8
8.55
19
0
NM
NM
NM
10
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
1160
<5
25.9
<5
NA
NA
<5
<0.1
107
NA
<10
CW-3
03/01/2011
6.0
3.73
14
402
0.86
51
256
28.9
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
919
<5
49.5
<5
NA
NA
76.1
<0.1
280 b
NA
<10
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-4 Surficial Unit GW Exceedances Incorporating Provisional Background.xlsx Page 2 of 4

TABLE 4-4
SURFICIAL UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISION BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
u/cr OS
mg/I
my
my
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
Soo
0.3*
1000
Provisional Background
3.7-9.8
NE
NE
NE
NE
NE
NE
NE
NE
NE
1.171
ND
129.2
4.177
0.196
0.196
3.623
ND
12233
3.15
73.33
1.22
22.48
56.43
58.14
0.576
323.9
13.05
67.72
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
CW-3
06/07/2011
6.5
5.96
21
231
1.7
-51
154
47.7
NM
<0.5
<5
NA
<50
0.2
NA
NA
8
NA
3740
<5
39.5
<5
NA
NA
10.9
<0.1
171
NA
12.6
CW-3
10/03/2011
6.6
5.49
21
195
1.6
-162
43
1.88
NM
<0.5
<5
NA
<50
0.12
NA
NA
<5
NA
1070
<5
28.7
<5
NA
NA
7.2
<0.1
103
NA
<10
CW-3 DUP
10/03/2011
6.6
5.49
21
195
1.6
-162
43
1.88
NM
<0.5
<5
NA
<50
0.085
NA
NA
<5
NA
1020
<5
28.4
<5
NA
NA
7.9
<0.1
110
NA
<10
CW-3
03/05/2012
5.5
3.62
15
444
1.77
-58
147
7.38
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
822
<5
43.5
<5
NA
NA
58.6
<0.1
265
NA
<10
CW-3
06/04/2012
6.3
5.53
19
231
3.45
-79
126
7.59
NM
<0.5
<5
NA
<50
0.08
NA
NA
<5
NA
2120
<5
28
<5
NA
NA
12.8
<0.1
148
NA
<10
CW-3 DUP
06/04/2012
6.3
5.53
19
231
3.45
-79
126
7.59
NM
<0.5
<5
NA
<50
<0.08
NA
NA
<5
NA
2180
<5
28.3
<5
NA
NA
12.4
<0.1
147
NA
<10
CW-3
10/01/2012
6.7
1 6.05
1 21
198
1 0.7
-102
1 103
1
NM
<0.5
<5
NA
<50
0.28
NA
NA
<5
NA
959
1 <5
1 17.8
<5
NA
NA
3.8
1 <0.1
107
NA
<10
CW-3
03/11/2013
5.5
4.56
15
626
1.48
101
306
8.3
NM
<1
<1
NA
143
<1
NA
NA
<5
NA
1610
<1
55
<5
I NA
NA
120
<0.2
380
1 NA
<5
CW-3
06/11/2013
6.1
3.55
20
401
0.35
40
245
7.04
NM
<1
1.26
NA
96
<1
NA
NA
<5
NA
3290
<1
42
<5
NA
NA
64
<0.2
260
NA
6
CW-3
10/01/2013
6.5
6.63
21
237
0.44
-50
155
7.62
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
1540
<1
25
<5
NA
NA
12
<0.2
130
NA
7
CW-3
03/06/2014
6.2
4.18
11
553
2.68
59
264
9.77
NM
<1
<1
NA
170
<1
NA
NA
<5
NA
551
<1
45
<5
NA
NA
100
<0.2
330
NA
7
CW-3
06/04/2014
6.5
6.54
20
245
NM
-3
202
8.5
NM
<1
<1
NA
50
<1
NA
NA
<5
NA
1580
<1
31
<5
NA
NA
33
<0.2
180
NA
<5
CW-3 DUP
06/04/2014
6.5
6.54
20
245
NM
-3
202
8.5
NM
<1
<1
NA
<50
<1
NA
NA
<5
NA
1530
<1
30
<5
NA
NA
32
<0.2
180
NA
<5
CW-3
10/03/2014
6.6
1 8.13
1 21
202
1 0.36
-37
168
3.82
NM
<1
<1
NA
110
<1
NA
NA
<5
NA
1050
1 <1
1 43
<5
NA
NA
3.5
<0.2
120
NA
<5
CW-3
06/02/2015
6.5
6.97
20
295
0.4
-79
126
3.34
0.5
<1
<1
<1
<50
<1
NA
NA
<5
<1
1010
<1
46
<5
1 11.8
<1000
32
<0.2
170
0.636
<5
CW-3
10/14/2015
6.4
7.78
20
201
0.3
6
211
1.05
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
727
<1
26
<5
3.49
191
3.7
<0.2
110
0.323
<5
CW-3
12/02/2015
7.0
4.73
18
200
1.5
-33
173
3.1
ND
<1
<1
<1
<50
<1
<0.03
NA
<1
<1
295
<1
11
<1
4.39
187
5.5
<0.2
120
0.338
<5
CW-3
01/12/2016
6.0
4.29
15
537
1.88
170
375
8.6
NM
<1
<1
<1
159
<1
<0.03
NA
<1
<1
375
<1
66
1.96
46.7
311
130
<0.2
340
0.947
5
CW-3
03/07/2016
6.0
4.24
15
501
1.56
142
347
10.3
0
<1
<1
<1
125
<1
NA
NA
<5
1.01
740
<1
64
<5
39
306
120
<0.2
320
0.752
<5
MW-3
07/05/1990
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
ND
NA
NA
NA
NA
1500
ND
NA
NA
NA
NA
45
NA
300
NA
NA
MW-3
03/06/1991
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
1100
ND
NA
NA
NA
NA
50
NA
50
NA
NA
MW-3
11/06/1991
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
ND
NA
NA
NA
NA
5800
1.4
NA
NA
NA
NA
71
NA
320
NA
NA
MW-3
03/02/1992
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
1700
ND
NA
NA
NA
NA
49
NA
230
NA
NA
MW-3
07/07/1992
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
4400
3.6
NA
NA
NA
NA
48
NA
270
NA
NA
MW-3
03/10/1993
6.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
1500
<1
NA
NA
NA
NA
33
NA
250
NA
NA
MW-3
07/12/1993
7.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
<0.1
NA
NA
NA
NA
5500
<1
NA
NA
NA
NA
62
NA
290
NA
NA
MW-3
11/08/1993
6.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
400
<1
NA
NA
NA
NA
20
NA
220
NA
NA
MW-3
03/07/1994
6.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
830
<1
NA
NA
NA
NA
37
NA
217
NA
NA
MW-3
07/12/1994
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
2900
<1
NA
NA
NA
NA
48
NA
258
NA
NA
MW-3
10/31/1994
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
770
<1
NA
NA
NA
NA
41
NA
280
NA
NA
MW-3
03/07/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
<0.1
NA
NA
NA
NA
900
<5
NA
NA
NA
NA
31
NA
288
NA
NA
MW-3
07/11/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.3
NA
NA
NA
NA
1700
<1
NA
NA
NA
NA
32
NA
240
NA
NA
MW-3
03/05/1996
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.4
NA
NA
<0.5
NA
NA
NA
NA
9000
1
NA
NA
NA
NA
NA
NA
134
NA
NA
MW-3
12/13/2006
6.9
3.90
64
0
NM
NM
NM
NM
NM
0.26
1.2
0.34
213
0.23
NA
NA
6.3
NA
2260
1.2
50.8
2.1
NA
NA
38.9
0.039
257
NA
11.7
MW-3
03/14/2007
6.7
3.44
60
NM
NM
NM
NM
NM
NM
<3
<2
1<1
169
<1
NA
NA
<5
NA
3960
<3
49
9
NA
NA
50
<1
264
NA
15
MW-3
11/13/2007
7.0
4.69
71
503
NM
NM
NM
NM
NM
<2.5
<2
<1
484
<1
NA
NA
6
NA
1560
<5
44
<5
NA
NA
77
<1
281
NA
<5
MW-3
03/18/2008
6.8
3.82
62
436
NM
NM
NM
NM
NM
13
<5
<1
136
<2
NA
NA
5
NA
2040
<3
35
<5
NA
NA
55
<5
256
NA
11
MW-3
11/11/2008
6.8
4.26
68
491
NM
NM
NM
NM
NM
<2.5
<2
<1
477
<1
NA
NA
<5
NA
1840
<2
41
<5
NA
NA
1 42
<1
305
NA
33
MW-3
03/24/2009
6.9
4.59
59
462
NM
NM
NM
NM
NM
<1
<1
<1
393
<1
NA
NA
4
NA
1160
<1
29
3
NA
NA
47
<1
286
1 NA
33
MW-3
10/15/2009
6.8
3.80
72
487
NM
NM
NM
NM
NM
<1
1
<1
458
<1
NA
NA
4
NA
1580
<1
36
3
NA
NA
48
<1
284
NA
8
MW-3
03/17/2010
7.0
4.41
57
443
NM
NM
NM
NM
NM
<1
<1
<1
142
<1
NA
NA
4
NA
1800
<1
26
4
NA
NA
48
<1
259
NA
3
MW-3
06/05/2015
6.5
3.77
20
516
1 0.2
-189
1 16
4.76
3.25
1 <1
5.39
1 <1
791
<1
NA
NA
<1
<1
2390
<1
1 63
<1
21.2
688
36
<0.2
310
0.663
<5
MW-3
12/01/2015
7.0
3.20
18
495
0.6
-72
133
9.1
NM
<1
3.95
<1
418
<1
<0.03
NA
<1
<1
1540
<1
44
<1
112.9
559
44
<0.2
300
0.675
<5
MW-3
01/11/2016
7.3
3.08
16
428
0.42
-25
181
8.93
1
<1
1.46
<1
177
<1
<0.03
NA
<1
<1
908
<1
42
<1
8.42
509
57
<0.2
280
0.322
1200
MW-3 DUP
01/11/2016
7.3
3.08
16
428
0.42
-25
181
8.93
1
<1
1.77
<1
209
<1
<0.03
NA
<1
<1
851
<1
43
<1
9.07
522
54
<0.2
300
0.351
110
MW-5
03/19/1990
3.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.16
NA
NA
NA
NA
7700
ND
NA
NA
NA
NA
41
NA
120
NA
NA
MW-5
11/05/1990
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
1400
1.3
NA
NA
NA
NA
6
NA
54
NA
NA
MW-5
03/06/1991
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
16000
1.2
NA
NA
NA
NA
44
NA
60
NA
NA
MW-5
07/01/1991
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
ND
NA
NA
NA
NA
730
ND
NA
NA
NA
NA
3.2
NA
80
NA
NA
MW-5
11/06/1991
6.1
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0A
NA
NA
NA
NA
600
2.2
NA
NA
NA
NA
1.9
1 NA
200
NA
NA
MW-5
03/02/1992
5.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
ND
NA
NA
NA
NA
14000
ND
NA
NA
NA
NA
37
NA
58
NA
NA
MW-5
07/07/1992
4.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
ND
NA
NA
0.2
NA
NA
NA
NA
1200
ND
NA
NA
NA
NA
4
NA
s0
NA
NA
MW-5
11/04/1992
5.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
0.2
NA
NA
NA
NA
4000
<1
NA
NA
NA
NA
15
NA
87
NA
NA
MW-5
03/10/1993
5.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
14000
<1
NA
NA
NA
NA
31
NA
90
NA
NA
MW-5
07/12/1993
7.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
<0.1
NA
NA
NA
NA
960
<1
I NA
NA
NA
NA
3.7
NA
66
NA
NA
MW-5
11/08/1993
4.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.2
NA
NA
NA
NA
5300
<1
NA
NA
NA
NA
14
NA
69
NA
NA
MW-5
03/07/1994
4.2
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.1
NA
NA
NA
NA
13000
<1
NA
NA
NA
NA
38
NA
75
NA
NA
MW-5
07/12/1994
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
0.1
NA
NA
NA
NA
1600
<1
NA
NA
NA
NA
5.6
NA
59
NA
NA
MW-5
1 03/07/1995
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
2.6
NA
NA
<0.1
NA
NA
NA
NA
16000
<5
NA
NA
NA
NA
41
NA
109
NA
NA
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-4 Surficial Unit GW Exceedances Incorporating Provisional Background.xlsx Page 3 of 4

TABLE 4-4
SURFICIAL UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISION BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Beryllium
Boron
Cadmium
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nickel
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Zinc
Reporting Units
S.U.
ft
Deg C
uos
/cm
mg/I
my
my
NTUs
mg/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg/I
ug/I
mg/I
ug/I
mg/I
ug/I
ug/I
ISA NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
4*
700
2
0.07^
0.07^
10
1*
300
15
50
100
NE
NE
250
0.2*
Soo
0.3*
1000
Provisional Background
3.7-9.8
NE
NE
NE
NE
NE
NE
NE
NE
NE
1.171
NO
129.2
4.177
0.196
0.196
3.623
ND
12233
3.15
73.33
1.22
22.48
56.43
58.14
0.576
323.9
13.05
67.72
Sample ID
ColleSample
ctionDate
Field Parameters
Analytical Results
MW-S
07/11/1995
5.4
NM
NM
NM
NM
NM
NM
NM
NM
NA
2
NA
NA
<0.1
NA
NA
NA
NA
7200
<1
NA
NA
NA
NA
18
NA
70
NA
NA
MW-5
03/05/1996
5.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
3.7
NA
NA
<0.5
NA
NA
NA
NA
16000
1
NA
NA
NA
NA
NA
NA
113
NA
NA
MW-5
03/09/1998
4.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<3
NA
NA
<0.5
NA
NA
NA
NA
15000
<2
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-S
12/13/2006
5.2
3.49
64
0
NM
NM
NM
NM
NM
0.19
3.4
<0.051
193
<0.024
NA
NA
0.75
NA
11300
0.27
21
0.38
NA
NA
21.9
0.023
122
NA
1.9
MW-5
03/14/2007
4.8
3.45
58
NM
NM
NM
NM
NM
NM
<3
<2
<1
132
<1
NA
NA
<5
NA
16000
<3
33
<5
NA
NA
34
<1
128
NA
<5
MW-5
11/13/2007
4.7
4.12
69
282
NM
NM
NM
NM
NM
<2.5
<2
<1
217
<1
NA
NA
<5
NA
2560
<5
6
<5
NA
NA
22
<1
147
NA
7
MW-5
03/18/2008
4.7
1 3.49
1 58
196
1 NM
NM
NM
NM
NM
2
<5
<1
89
1 3
NA
NA
<5
NA
14600
1 <3
1 31
<5
NA
NA
37
1<5
90
NA
13
MW-5
11/11/2008
5.0
3.93
68
299
NM
NM
NM
NM
NM
<2.5
<2
<1
261
<1
NA
NA
12
NA
4760
<2
9
<5
NA
NA
16
<1
157
1 NA
23
MW-5
03/24/2009
5.0
3.88
58
269
NM
NM
NM
NM
NM
<1
2
<1
176
<1
NA
NA
6
NA
30800
2
44
2
NA
NA
37
<1
157
NA
14
MW-5
10/15/2009
4.9
3.98
71
287
NM
NM
NM
NM
NM
<1
1
<1
187
<1
NA
NA
3
NA
4890
<1
11
2
NA
NA
34
<1
147
NA
6
MW-5
03/17/2010
5.0
3.74
55
214
NM
NM
NM
NM
NM
I<1
2
<1
47
<1
NA
NA
3
NA
21700
<1
35
<1
NA
NA
53
<1
76
NA
28
MW-S
06/09/2015
4.9
4.71
19
273
0.53
35
240
4.9
4
<1
2.48
<1
247
<1
NA
0.016
<1
1.06
11700
<1
23
<1
38.9
24
50
<0.2
150
0.467
<5
MW-5
12/01/2015
5.1
3.78
17
167
0.24
241
446
13
4.5
<1
2.41
<1
96
<1
<0.03
NA
1.25
1.56
14900
<1
26
<1
14.7
26
60
<0.2
71
3.63
<5
MW-5
01/11/2016
5.1
3.45
14
193
1 0.47
163
1 368
4.78
5.5
<1
1.88
1 <1
73
1 <1
<0.03 MI
NA
<1
2.1.9
24000
1 <1
1 46
<1
13.3
40
71
<0.2
90
0.68
<5
MW-6 (S&ME)
03/21/2012
7.0
NM
21
366
0.16
68
NM
81.8
NM
<1
2.5
NA
76.5
<0.1
NA
NA
<1
NA
12600
<1
36.1
<1
NA.
NA
37.7
<1
223
NA
<5
MW-6
06/09/2015
6.7
6.12
18
375
0.2
-103
102
1.9
4.5
<1
2.38
<1
108
<1
NA
NA
<1
<1
12700
<1
39
<1
13
330
46
<0.2
230
0.448
<5
MW-6
12/01/2015
5.8
3.61
17
763
0.84
45
250
8.98
0
<1
<1
<1
616
<1
<0.03
NA
<1
1.34
4360
<1
217
1.55
36.2
1450
270
0.56
510
0.41
<5
MW-6 DUP
12/01/2015
5.8
3.61
17
763
0.84
45
250
8.98
0
<1
<1
<1
636
<1
<0.03
NA
<1
1.21
4420
<1
190
1.02
36.7
1500
280
0.206
530
0.342
<5
MW-6
01/11/2016
6.1
3.33
16
500
0.58
71
276
9.07
0
<1
<1
<1
580
<1
<0.03
NA
<1
2.2
4490
<1
76
1.64
26.5
1060
180
<0.2
350
0.544
<5
MW-6
03/07/2016
6.8
2.64
14
392
2.32
-31
174
23
4.5
<1
1.43
<1
108
<1
<0.03
NA
<1
<1
7970
<1
43
<1
8.65
399
50
<0.2
240
<0.3
<5
MW-33S (S&ME)
03/01/2012
5.2
NM
15
156
0.21
142
1 NM
5.9
NM
<1
<1
NA
<50
<0.1
NA
NA
<1
NA
4970
1 <1
1 170
2.6
1 NA
NA
NA
<1
NA
NA
17.7
MW-33S (S&ME)
05/08/2012
4.9
NM
18
286
0.33
5
NM
4.01
NM
<1
1.5
NA
<50
<0.1
NA
NA
<1
NA
26300
<1
263
4.3
NA
NA
107
NA
213
NA
8
MW-33S
06/08/2015
5.0
6.88
20
170
0.2
30
235
4.12
7
<1
<1
<1
<50
<1
NA
0.014
1.06
1.74
6780
<1
73
1.11
3.17
66
50
<0.2
120
1.5
<5
MW-44SA(S&ME)
03/09/2012
6.8
NM
23
1034
0.47
127
NM
32.3
NM
<1
733
NA
1170
<0.2
NA
NA
13.8
NA
7260
3.6
273
11.6
NA
NA
186
<1
677
NA
10.5
MW-44SA (S&ME)
05/07/2012
6.4
NM
22
1241
0.43
-104
NM
4.11
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
257
NA
890
NA
NA
MW-44SA
06/04/2015
6.2
23.27
21
997
0.68
-105
100
16.1
3
<1
74.4
<1
1620
<1
NA
0.037
2.71
3.1.5
4430
<1
1.72
1.87
34
2050
230
<0.2
690
3.8
51
MW-44SA
12/02/2015
6.4
23.10
19
1054
0.64
147
352
7.7
3
<1
89
<1
1520
<1
<0.03
NA
<1
2.1.2
6630
<1
208
<1
35.9
2080
270
<0.2
750
2.09
<5
MW-44SA
01/11/2016
6.1
21.38
12
847
0.7
37
242
4.4
2
<1
73.3
<1
1490
<1
<0.03
NA
1.07
2.76
5710
<1
200
<1
32.4
1770
270
<0.2
650
2.25
6
MW-52(S&ME)
03/21/2012
5.1
NM
17
342
0.69
438
NM
0.98
NM
<15
<10
NA
354
<1
NA
NA
<5
NA
<40
<10
83.2
<5
NA
NA
32.5
<15
181
NA
<20
MW-52(S&ME)
1 05/08/2012
4.3
NM
18
313
0.32
205
NM
0.31
NM
<1
<1
NA
444
<0.1
NA
NA
<1
NA
199
<1
63.3
<1
NA
NA
66.4
NA
192
NA
<5
Private Water Supply
W-2 (Vendor)
03/18/2015
5.3
NM
15
153
8.38
NM
NM
<1
NM
<1
<5
<1
7
<2
<100
NA
<5
<1
27
<3
15
<5
4.2
61
2.99
<0.2
109
<0.3
35
W-2 (Duke)
03/18/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
<1
<1
<1
<50
<1
NA
NA
<5
<1
27
<1
16
<5
4.18
62
3.3
<0.2
110
<0.3
36
W-6 (Vendor)
04/28/2015
7.7
NM
19
237
8.61
NM
NM
<1
NM
<2
<5
<S
7
<2
<100
NA
<5
<5
114.438
<3
<5
<5
3.97
263.2646
28.1
<0.2
161
0.5
16
W-6 (Duke)
04/28/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
<1
2.21
<1
<SO
<1
NA
NA
<5
1.51
53
<1
<5
<5
3.99
245
27
<0.2
160
0.335
14
Prepared by: BER Checked by: VTV
Notes:
- Concentration greater than 2L or IMAC or Provisional Background Concentration
- Comparative value, either 2L or IMAC or Provisional Background Concentration, is criterion used to evaluate data
ug/I = microgram per liter NTU = nephelometric turbidity unit
mg/I = milligrams per liter
Eh = Redox potential S.U. = Standard Unit
mV = millivolts
NE = Not Established umhos/cm = micro mhos per centimeter
Deg C = Degree Celsius
DUP = Duplicate DO = Dissolved Oxygen
ft = feet
Spec Cord = Specific Conductance ORP = Oxidation Reduction Potential
NO = Not Detected
Temp = Temperature NM = Not Measured
NA = Not Analyzed
< = concentration not detected at or above the reporting limit.
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April., 1, 2013.
B = Target analyte detected in method blank at or above the reporting limit.
MI = Matrix spike recovery exceeds QC limits.
S = associated calibration check did not meet specified criteria.
= NC DHHS Health Screening Level
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-4 Surficial Unit GW Exceedances Incorporating Provisional Background.xlsx Page 4 of 4

TABLE 4-5
LOWER YORKTOWN UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISIONAL BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Boron
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nitrate
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Reporting Units
S.U.
ft
De C
9
umhos
cm
m /I
9
mV
mV
NTUs
m /I
9
u /I
9
u /I
9
u /I
9
u /I
9
u /I
9
u /I
9
u /1
9
u /I
9
u /I
9
u /I
9
m /I
9
m /I
9
u /I
9
m /I
9
u /I
9
m /I
9
u /I
9
SSA NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
700
0.07^
0.07^
10
1*
300
15
50
10
NE
NE
250
0.2*
500
0.3*
Provisional Background
5.5-7.7
NE
NE
NE
NE
NE
NE
NE
NE
ND
42.19
54
1.604
1.604
129
2.21
18404
63.26
152
NE
32.88
255
30.92
NO
1266
118
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
Background
BW-2I
03/05/2015
7.0
7.18
11
291
0.29
-73
132
89.9
1
<1
1.8
<50
NA
NA
7.08
<1
2090
1.29
35
NA
12.2
229
13
<0.2
200
8.88
BW-2I
06/04/2015
7.3
10.11
18
285
0.16
-115
90
413
<0.5
<1
3.89
<50
NA
NA
30.8
1.31
7850
8.99
50
NA
19
255
2.1
<0,2
440
36.6
BW-2I
09/30/2015
7.7
13.48
21
295
0.2
-201
4
9.99
NM
<1
1.01
<50
NA
NA
7.81
<1
882
1.63
22
NA
15.5
233
NA
<0.2
NA
11.4
BW-2I
12/02/2015
7.3
9.22
18
296
0.1
-52
153
710
NM
<1
6.5
74
0.44
NA
67
2.63
12600
20.9
64
NA
30.4
272
0.26
<0.2
970
79
BW-2I
01/12/2016
7.2
7.31
13
321
0.27
-154
51
320.8
0
<1
4.21
54
0.18
NA
26.1
1.53
5690
10.5
47
NA
21.8
223
0.24
<0.2
320
33.7
BW-2I
03/07/2016
7.2
6.84
16
251
0.16
-180
25
346
NM
<1
4.26
<50
0.18
NA
21.4
1.53
6030
10.1
47
NA
15.2
231
<0.1
<0.2
360
27.9
BW-3I
03/04/2015
5.8
3.01
18
92
0.09
-20
186
58.3
5.5
<1
9.07
<50
NA
NA
2.78
<1
5790
<1
60
NA
5.09
51
0.41
<0.2
86
5.69
BW-3I
06/03/2015
5.7
5.27
19
67
0.1
-96
109
20.7
2.5
<1
<1
<50
NA
NA
1.16
<1
2280
<1
21
NA
4.28
41
0.12
<0.2
57
2.46
BW-3I
12/02/2015
5.5
3.59
18
76
0.88
-5
200
24.5
1
<1
<1
<50
0.047
NA
1.18
<1
2200
<1
19
NA
6.07
36
0.89
<0.2
72
2.57
BW-3I
01/11/2016
5.5
3.15
16
88
0.22
70
275
9.92
0.5
<1
<1
<50
<0.03
NA
<1
<1
1720
<1
19
NA
5.7
48
0.18
<0.2
47
2.04
BW-3I
03/07/2016
5.6
3.79
16
77
0.19
73
278
9.86
1.5
<1
<1
<50
0.049
NA
1.34
<1
2070
<1
20
NA
6
41
1.3
<0.2
75
2.61
Lower Yorktown
AW-1I
03/03/2015
6.4
14.56
18
82
0.2
89
294
5.03
4.5
<1
<1
<50
NA
NA
<1
<1
6600
<1
98
NA
1.45
48
3.8
<0.2
30
0.41
AW-II
06/02/2015
6.4
15.83
22
85
0.4
-174
31
4.36
2.7
<1
<1
<50
NA
NA
<1
<1
8400
<1
146
NA
1.19
50
3.2
<0.2
53
<0.3
AW-2I
04/02/2015
7.2
18.21
21
267
0.48
15
220
14.8
<0.5
<1
<1
<50
NA
NA
<1
<1
276
<1
53
NA
4.92
229
8.3
<0.2
160
0.442
AW-2I
06/03/2015
7.1
19.26
20
289
0.96
-142
63
38.3
<0.5
<1
<1
<50
NA
NA
<1
<1
863
<1
73
NA
4.67
257
38
<0.2
170
0.637
AW-3I
03/04/2015
7.0
3.70
16
252
0.72
44
249
6.97
<0.5
<1
<1
<50
NA
NA
<1
<1
308
<1
164
NA
4.76
138
2.9
<0.2
130
0.7
AW-3I
06/04/2015
6.7
5.30
19
239
0.3
-103
102
2.63
>7
<1
6.14
<50
NA
NA
<1
<1
5650
<1
632
NA
4.92
131
3.5
<0.2
110
0.392
MW-2
07/01/1991
5.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
NA
I ND
ND
NA
NA
NA
NA
4.2
NA
640
NA
MW-2
11/06/1991
6.5
NM
NM
NM
NM
NM
NM
NM
NM
NA
NA
NA
NA
NA
NA
NA
400
17
NA
NA
NA
NA
4.1
NA
190
NA
MW-2
03/10/1993
6.6
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
340
1.3
NA
NA
NA
NA
4.8
NA
230
NA
MW-2
07/12/1993
7.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
330
<1
NA
NA
NA
NA
3.6
NA
160
NA
MW-2
07/12/1994
6.3
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
430
1.8
NA
NA
NA
NA
3.5
NA
190
NA
MW-2
03/07/1995
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
840
<5
NA
NA
NA
NA
4.1
NA
225
NA
MW-2
07/11/1995
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
1
NA
NA
NA
NA
NA
7800
<1
NA
NA
NA
NA
4
NA
142
NA
MW-2
03/18/1997
5.8
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
560
3
NA
NA
NA
NA
4
NA
142
NA
MW-2
12/13/2006
7.4
4.40
65
0
NM
NM
NM
NM
NM
0.27
0.11
11.1
NA
NA
0.4
NA
452
0.23
20.6
0.05
NA
NA
9.62
0.018
127
NA
MW-2
03/14/2007
7.2
1.88
64
NM
NM
NM
NM
NM
NM
<3
ND
<5
NA
NA
<5
NA
2040
<3
26
0.03
NA
NA
10
<1
144
NA
MW-2
11/13/2007
7.1
6.25
68
267
NM
NM
NM
NM
NM
<2.5
ND
18
NA
NA
<5
NA
673
<5
21
<0.02
NA
NA
16
<1
144
NA
MW-2
03/18/2008
7.0
3.79
64
263
NM
NM
NM
NM
NM
<2
ND
21
NA
NA
5
NA
3180
<3
21
<0.08
NA
NA
13
<5
103
NA
MW-2
11/11/2008
7.7
4.65
67
263
NM
NM
NM
NM
NM
<2.5
ND
34
NA
NA
<5
NA
674
5
19
<0.02
NA
NA
11
<1
149
NA
MW-2
03/24/2009
7.5
3.55
63
269
NM
NM
NM
NM
NM
<1
ND
52
NA
NA
4
NA
1340
<1
18
<0.02
NA
NA
13
<1
167
NA
MW-2
10/15/2009
7.6
4.02
67
266
NM
NM
NM
NM
NM
<1
ND
11.6
NA
NA
3
NA
699
<1
18
<0.02
NA
NA
14
<1
151
NA
MW-2
03/17/2010
7.4
4.10
62
268
NM
NM
NM
NM
NM
<1
ND
<10
NA
NA
4
NA
1110
<1
18
<0.02
NA
NA
15
<1
147
NA
MW-2
06/05/2015
7.5
3.04
22
298
0.26
-140
65
15.5
0.5
<1
<1
<50
NA
NA
<1
<1
2530
<1
38
NA
2.99
300
24
<0.2
170
0.304
MW-2
12/01/2015
7.6
2.46
18
289
1.4
64
269
3.79
0
<1
<1
<50
<0.03 M1
NA
<1
<1
597
<1
25
NA
2.87
289
25
0.44
<25
<0.3
MW-2
01/12/2016
7.6
2.13
14
276
0.7
-63
142
9.94
0
<1
<1
<50
<0.03
NA
<1
<1
1080
<1
71
NA
2.94
294
26
<0.2
160
<0.3
MW-4
10/31/1994
6.0
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
440
<15
NA
NA
NA
NA
42
NA
214
NA
MW-4
03/07/1995
5.7
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
410
<15
NA
NA
NA
NA
36
NA
213
NA
MW-4
07/11/1995
5.9
NM
NM
NM
NM
NM
NM
NM
NM
NA
<1
NA
NA
NA
NA
NA
840
<15
NA
NA
NA
NA
34
NA
196
NA
MW-4
12/13/2006
6.3
3.85
65
1
NM
NM
NM
NM
NM
0.21
0.4
1340
NA
NA
0.32
NA
86.2
0.11
223
0.05
NA
NA
93.3
0.19
339
NA
MW-4
03/14/2007
5.7
3.95
65
NM
NM
NM
NM
NM
NM
<3
<2
1150
NA
NA
<5
NA
96
<15
174
0.03
NA
NA
98
<2
341
NA
MW-4
11/13/2007
5.9
4.38
68
705
NM
NM
NM
NM
NM
<2.5
<2
1670
NA
NA
<5
NA
40
<15
168
<10
NA
NA
175
<2
383
NA
MW-4
03/18/2008
5.8
3.86
64
691
NM
NM
NM
NM
NM
3
<5
1090
NA
NA
5
NA
39
<15
129
<10
NA
NA
125
<2
390
NA
MW-4
11/11/2008
6.2
4.20
67
662
NM
NM
NM
NM
NM
<2.5
<2
1220
NA
NA
<5
NA
101
<15
157
<10
NA
NA
106
<2
374
NA
MW-4
03/24/2009
6.1
4.13
63
694
NM
NM
NM
NM
NM
<1
2
1420
NA
NA
2
NA
97
<15
177
<10
NA
NA
118
<2
365
NA
MW-4
10/15/2009
6.1
4.45
68
691
NM
NM
NM
NM
NM
<1
<1
1250
NA
NA
4
NA
81
<15
199
<10
NA
NA
133
<2
403
NA
MW-4
03/17/2010
5.9
4.04
62
675
NM
NM
NM
NM
NM
<1
<1
1170
NA
NA
3
NA
20
<15
182
<10
NA
NA
129
<2
388
NA
MW-4
06/05/2015
6.0
4.84
18
667
0.38
51
256
2.45
<0.5
<1
<1
1640
NA
NA
<1
6.25
167
<1
576
NA
60.2
403
140
0.352
400
<0.3
MW-4
09/29/2015
5.9
6.40
21
675
1.8
176
381
1.77
NM
<1
<1
1720
NA
NA
<1
6.77
172
<1
597
NA
63.4
367
NA
1 0.509
NA
0.382
P:\Duke Energy Progress.1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-5 Lower Yorktown Unit GW Exceedances Incorporating Provisional Background.xlsx Page 1 of 2

TABLE 4-5
LOWER YORKTOWN UNIT GROUNDWATER EXCEEDANCES INCORPORATING PROVISIONAL BACKGROUND
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Analytical Parameter
PH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Ferrous
Iron
Antimony
Arsenic
Boron
Chromium
(Hexavalent)
Cr(VI)
Speciation
Chromium
Cobalt
Iron
Lead
Manganese
Nitrate
Sodium
Strontium
Sulfate
Thallium
Total
Dissolved
Solids
Vanadium
Reporting Units
S.U.
ft
De C
9
umhos
cm
m /I
9
mV
mV
NTUs
m /I
9
u /I
9
u /I
9
u /I
9
ug/I
u /I
9
ug/1
u /I
9
u /1
9
u /I
9
ug/I
m /I
9
m /I
9
ug/I
m /I
9
u /I
9
m /I
9
u /1
9
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
1*
10
700
0.07^
0.07^
SO
1*
300
15
50
10
NE
NE
250
0.2*
500
0.3*
Provisional Background
5.5-7.7
NE
NE
NE
NE
NE
NE
NE
NE
NO
42.19
54
1.604
1.604
129
2.21
18404
63.26
152
NE
32.88
255
30.92
NO
1266
118
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
MW-4 DUP
09/29/2015
5.9
6.40
21
675
1.8
176
381
1.77
NM
<1
<1
1710
NA
NA
<1
6.77
153
<1
591
NA
63.8
361
NA
0.411
NA
0.48
MW-4
12/01/2015
6.3
4.35
19
760
1.42
119
324
6.5
0
<1
<1
1830
<0.03
NA
5.35
6.57
163
<1
483
NA
59.8
423
150
0.316
440
0.374
MW-4
01/11/2016
6.5
4.05
15
813
0.31
144
349
4.51
0
<1
<1
2200
<0.03
NA
<1
5.68
145
<1
587
NA
53.6
584
160
0.417
500
<0.3
MW-4
04/20/2016
6.3
4.15
18
757
0.3
133
338
3.24
NM
<1
<1
1930
NA
NA
<1
3.91
NA
<1
NA
NA
NA
NA
140
0.496
410
NA
MW-4 DUP
04/20/2016
6.3
4.15
18
757
0.3
133
338
3.24
NM
<1
<1
1890
NA
NA
<1
4.12
NA
<1
NA
NA
NA
NA
150
0.346
420
NA
MW-7(S&ME)
03/21/2012
7.5
NM
21
329
0.57
74
NM
23.9
NM
<1
<1
<50
NA
NA
16.4
NA
1440
<1
65
11.1
NA
NA
20.9
<1
202
NA
MW-7
06/08/2015
7.4
5.39
19
363
0.4
-232
-27
3.97
1.2
<1
<1
<50
NA
0.023
<1
<1
909
<1
73
NA
10.2
333
29
<0.2
240
<0.3
MW-7
12/02/2015
7.2
2.73
19
314
0.59
68
273
2.2
1
<1
<1
<50
<0.03
NA
<1
<1
635
<1
35
NA
9.49
278
20
<0.2
190
<0.3
MW-7
01/12/2016
7.3
2.36
14
293
0.36
-6
199
3.76
0.5
<1
<1
<50
<0.03
NA
<1
<1
677
<1
38
NA
8.81
276
19
<0.2
190
<0.3
MW-8I(S&ME)
02/29/2012
6.6
NM
22
1239
0.17
1
NM
1.73
NM
<1
1.6
1100
NA
NA
2.9
NA
1920
<1
139
<0.1
NA
NA
242
<1
826
NA
MW-8I (S&ME)
05/07/2012
5.9
NM
22
1135
0.1
-105
NM
4.18
NM
<1
3.5
1040
NA
NA
6.2
NA
2170
<1
180
<0.1
NA
NA
310
<1
788
NA
MW-8I
06/04/2015
5.3
29.32
20
844
0.45
-86
119
16.6
1
<1
9.88
1080
NA
0.03
2.29
<1
1880
<1
147
NA
45.1
1220
250
1 <0.2
560
3.64
MW-8I
09/29/2015
6.2
31.69
25
630
0.8
120
325
1.71
NM
3.95
7.09
737
NA
NA
2.67
<1
229
<1
58
NA
34.9
973
NA
0.254
NA
2.4
MW-8I
12/01/2015
5.5
29.26
19
803
1.56
-37
168
6.58
1.5
<1
10.7
1070
<0.03
NA
1.06
<1
1290
<1
136
NA
43.8
1160
310
<0.2
540
3.44
MW-8I
01/11/2016
5.5
27.75
13
794
0.4
41
246
1.3
0
<1
11.5
1140
<0.03
NA
<1
<1
1400
<1
153
NA
44
1220
280
<0.2
450
3.62
MW-33I(S&ME)
03/09/2012
6.9
NM
19
1218
0.08
25
NM
2.55
NM
<1
<1
<50
NA
NA
<1
NA
12400
<1
144
<0.1
NA
NA
481
<1
974
NA
MW-33I (S&ME)
05/08/2012
6.3
NM
19
1089
0.32
-88
NM
1.48
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
<0.1
NA
NA
585
NA
962
NA
MW-33I
06/09/2015
6.9
7.05
19
887
0.2
-70
135
1.26
NM
<1
<1
<50
NA
NA
<1
<1
7770
<1
115
NA
6.79
1080
220
<0.2
620
<0.3
MW-41I(S&ME)
03/20/2012
7.6
5.75
19
294
0.06
-35
NM
8.01
NM
<15
<10
<50
NA
NA
<5
NA
966
<10
29.4
<0.05
NA
NA
11.5
<15
477
NA
MW-41I
12/02/2015
7.6
6.40
18
306
0.2
-116
89
7.4
0.5
<1
<1
<50
<0.03
NA
<1
<1
1390
<1
26
NA
2.8
317
18
<0.2
190
0.432
MW-41I
01/12/2016
7.3
5.62
17
295
0.37
-29
177
6.4
0.5
<1
<1
<50
<0.03
NA
<1
<1
554
<1
23
NA
2.85
314
17
<0.2
180
<0.3
MW-44I
06/03/2015
7.3
23.75
20
451
0.32
-204
1
6.19
0.5
<1
<1
<50
NA
NA
<1
<1
450
<1
31
NA
4.68
476
32
<0.2
280
0.542
MW-44I
12/01/2015
7.3
23.40
19
478
0.32
6
211
5.57
0.25
<1
<1
<50
<0.03
NA
<1
<1
469
<1
32
NA
4.68
499
45
<0.2
290
0.446
MW-44I
01/11/2016
7.2
2.70
15
449
0.4
-124
81
9.2
0.5
<1
<1
<50
<0.03
NA
<1
<1
497
<1
34
NA
4.46
510
43
<0.2
660
0.382
MW-49I(S&ME)
03/20/2012
6.9
20.83
22
1021
0
37
NM
7.64
NM
<15
<10
2860
NA
NA
<5
NA
9940
<10
128
<0.25
NA
NA
60.5
<15
619
NA
MW-49I (S&ME)
05/07/2012
6.7
NM
20
937
0.11
-124
NM
3.56
NM
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.089
NA
NA
89.8
NA
619
NA
MW-49I
06/09/2015
6.9
23.49
22
979
0.38
-210
-5
4.82
3
<1
<1
3400
NA
NA
<1
<1
6420
<1
111
NA
64.6
749
90
<0.2
600
0.422
MW-49I
12/02/2015
6.9
23.04
20
991
0.52
4
209
2.29
3.75
<1
<1
3360
<0.03
NA
<1
<1
6400
<1
108
NA
64.2
717
97
<0.2
610
<0.3
MW-49I
01/12/2016
7.1
21.93
10
975
0.7
-119
86
1.2
2
<1
<1
3520
<0.03
NA
<1
<1
6170
<1
108
NA
61.6
755
94
<0.2
600
0.362
MW-53I (S&ME)
03/07/2012
9.0
NM
19
4359
0.32
-85
NM
9.8
NM
1.3
2.2
<50
NA
NA
2.2
NA
349
<1
32
<0.05
NA
NA
77.9
<1
297
NA
MW-53I(S&ME)
05/08/2012
10.0
NM
18
374
0.2
-142
NM
0
NM
<1
<1
<50
NA
NA
<1
NA
1620
<1
49.7
0.23
NA
NA
58.9
NA
240
NA
MW-53I
06/01/2015
7.8
5.17
20
305
0.2
-301
-96
3.99
1.5
<1
<1
<50
NA
NA
<1
<1
2660
<1
31
NA
8.81
275
27
<0.2
180
<0.3
MW-55I (S&ME)
02/29/2012
6.9
NM
18
554
0
70
NM
3.55
NM
<1
<1
<50
NA
NA
1.8
NA
376
<1
161
1.5
NA
NA
36.8
<1
<5
NA
MW-55I (S&ME)
03/09/2012
6.6
NM
17
638
0.16
228
NM
9.1
NM
<1
1
1040
NA
NA
4.5
NA
1230
<1
304
<0.05
NA
NA
44.4
<1
420
NA
MW-55I(S&ME)
05/08/2012
6.3
NM
18
590
0.38
-2
NM
0.34
NM
<1
<1
744
NA
NA
<1
NA
426
<1
144
0.054
NA
NA
36.2
NA
366
NA
MW-55I
08/19/2015
6.2
5.14
20
521
0.19
118
323
1
NM
<1
<1
498
NA
NA
<1
1.61
70
<1
63
NA
34
354
45
<0.2
290
<0.3
MW-55I
12/01/2015
6.7
2.85
18
647
0.2
-62
143
7.1
NM
<1
<1
745
<0.03
NA
<1
<1
655
<1
53
NA
32.1
499
61
<0.2
370
0.463
MW-55I
01/11/2016
6.2
2.57
16
500
0.25
133
338
5.15
0
<1
<1
584
<0.03
NA
<1
2.68
329
<1
64
NA
35.5
349
49
<0.2
300
<0.3
MW-55I
03/07/2016
6.2
2.17
17
505
0.36
71
276
0.4
0
<1
<1
658
<0.03
NA
<1
2.36
42
<1
60
NA
36.5
355
44
<0.2
320
<0.3
Notes:
0 - Concentration greater than 2L or IMAC or Provisional Background Concentration
0 - Comparative value, either 2L or IMAC or Provisional Background Concentration, is criterion used to evaluate data
ug/I = microgram per liter DO = Dissolved Oxygen
Eh = Redox potential ORP = Oxidation Reduction Potential
NE = Not established
NTU = nephelometric turbidity unit
DUP = Duplicate S.U. = Standard Unit
Spec Cond = Specific Conductance umhos/cm = micro mhos per centimeter
Temp = Temperature mg/I = milligrams per liter
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013.
M1 = Matrix spike recovery exceeded QC limits.
< = concentration not detected at or above the reporting limit.
= NC DHHS Health Screening Level
my = millivolts
Deg C = Degree Celsius
ft = feet
NO = Not Detected
NM = Not measured
NA = Not analyzed
Prepared by: BER Checked by: VTV
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\19.EG_CSASUP\Tables\Table 4-5 Lower Yorktown Unit GW Exceedances Incorporating Provisional Background.xlsx Page 2 of 2

TABLE 4-6
GROUNDWATER SURFICIAL AQUIFER BACKGROUND RESULTS
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Constituent
Units
Number
of
Samples
Number of
Detected
Samples
Minimum
Detected
Concentration
Maximum
Detected
Concentration
Mean
Statistical Method
UPL
(6 Future
Samples)
UPL
(14 Future
Samples)
Antimony
ug/L
33
0
---
---
---
---
---
---
Arsenic
ug/L
33
3
1.05
1.46
1.23
95% KM UPL (Lognormal)
1.171
1.171
Beryllium
ug/L
19
0
---
---
---
---
---
---
Boron
ug/L
32
10
52.6
86.8
65.96
95% KM Chebyshev UPL (np)
114.8
129.2
Cadmium
ug/L
33
7
0.22
5.2
95% KM Chebyshev UPL (np)
4.177
4.177
Chromium (hexavalent)
ug/L
10
7
0.03
0.08
0.05
95% Approx. Gamma UPL
0.16
0.20
Chromium
ug/L
32
11
1.42
2.51
1.87
95% Approx. Gamma UPL
3.304
3.623
Cobalt
ug/L
19
0
---
---
---
---
---
---
Iron
ug/L
32
30
39
5,240
1,424
95% Approx. Gamma UPL
9,709
12,233
Lead
ug/L
33
13
1.09
2.22
1.42
95% KM UPL (Lognormal)
1.749
1.75
Manganese
ug/L
31
31
8.0
46
24.17
95% Approx. Gamma UPL
64.96
73.33
Nickel
ug/L
32
1
---
1.22
---
---
---
---
Sodium
mg/L
16
16
1.41
10.20
5.73
95% WH UPL
19.15
22.48
Strontium
ug/L
18
17
8.0
40.0
20.29
95% UPL (np)
49.99
56.4
Sulfate
mg/L
31
31
3.60
59
30.42
95% UPL (np)
58.4
58.4
Thallium
ug/L
33
7
0.1
0.66
0.23
95% KM Chebyshev UPL (np)
0.576
0.576
Total Dissolved Solids
mg/L
31
27
46
222
106.7
95% Approx. Gamma UPL
283.9
323.9
Vanadium
ug/L
18
15
2.6
7.24
4.29
95% Approx. Gamma UPL
11.3
13.05
Zinc
u /L
32
13
8
23
14.38
95% Approx. Gamma UPL
54.09
67.72
Prepared by: MCD Checked by: HHS
Notes:
UPL - Upper Prediction Limit
NP - Non -parametric
Gamma - Gamma data transformation
Lognormal - Lognormal data transformation
P: Duke Energy Progress.1026 109. Weatherspoon Ash Basin GW Assessment Plan 19.EG_CSASUP Tables Table 4-6 GW Surficial Aquifer Background Results.xlsx Page 1 of 1

TABLE 4-7
GROUNDWATER LOWER YORKTOWN BACKGROUND RESULTS
W.H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Constituent
Units
Number
of
Samples
Number of
Detected
Samples
Minimum
Detected
Concentration
Maximum
Detected
Concentration
Mean
Statistical Method
UPL
(6 Future
Events)
UPL
(10 Future
Events)
Antimony
ug/L
10
0
---
---
---
---
---
---
Arsenic
ug/L
10
6
1.01
9.07
4.04
95% Approx. Gamma ROS UPL
33.99
42.19
Beryllium
ug/L
10
1
---
1.19
---
- -
---
---
Boron
ug/L
10
1
---
54
-
---
---
---
Cadmium
ug/L
10
0
---
---
---
---
---
---
Chromium, hex
ug/L
5
4
0.047
0.18
0.114
95% Approx. Gamma ROS UPL
1.208
1.604
Chromium
ug/L
10
9
1.16
30.8
11.07
95% Approx. Gamma ROS UPL
106
129
Cobalt
ug/L
10
2
1.31
1.53
1.457
95% KM UPL (Lognormal)
2.075
2.21
Iron
ug/L
10
10
882
7,850
3,660
95% Wilson Hilferty (WH) Approx. Gamma UPL
16,125
18,404
Lead
ug/L
10
5
1.29
10.5
6.502
95% Approx. Gamma ROS UPL
50.32
63.26
Manganese
ug/L
10
10
19
60
34
95% UPL (t) (lognormal)
129.8
151.6
Sodium
mg/L
11
11
4.28
30.4
12.84
95% Wilson Hilferty (WH) Approx. Gamma UPL
32.88
32.88
Strontium
ug/L
10
10
36
255
138.8
95% UPL (np)
255
255
Sulfate
mg/L
9
8
0.12
13
2.28
95% Approx. Gamma ROS UPL
24.76
30.92
Thallium
ug/L
10
0
---
---
---
- -
---
---
Total Dissolved Solids
mg/L
9
9
47
440
184.1
95% Wilson Hilferty (WH) Approx. Gamma UPL
1,080
1,266
Vanadium
ug/L
10
10
2.04
36.6
13.39
95% Wilson Hilferty (WH) Approx. Gamma UPL
99.37
118
Zinc
u /L
9
4
6
22
13.5
1 95% Wilson Hilferty WH Approx. Gamma UPL
109
139
Prepared by: MT Checked by: HHS
Notes:
UPL - Upper Prediction Limit
NP - Non -parametric
Gamma - Gamma data transformation
Lognormal - Lognormal data transformation
P: Duke Energy Progress.1026 109. Weatherspoon Ash Basin GW Assessment Plan 19.EG_CSASUP Tables Table 4-7 GW Lower Yorktown Aquifer BG Results.xlsx Page 1 of 1