MAYO_BG_GW_Sep_2016_20171005

TABLE 1
BACKGROUND GROUNDWATER DATA SUMMARY THROUGH 2O16-09
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
Cond
DO
ORP
Eh
Turbidity
Antimony
Arsenic
Barium
Boron
Chromium
(VI)
Chromium
Cobalt
Iron
Lead
Manganese
Sodium
Strontium
Thallium
Total
Dissolved
Solids
Vanadium
Radium-226
Radium-228
Uranium-233
Uranium-234
Uranium-236
Uranium-238
Reporting Units
S.U.
ft
Deg C
umhos/cm
mg/L
mV
mV
NTUs
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
ug/L
ug/L
mg/L
ug/L
pCi/L
pCi/L
ug/mL
ug/mL
ug/mL
ug/mL
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
1*
10
700
700
0.07^
10
1*
300
15
50
NE
NE
0.2*
500
0.3*
NE
NE
NE
NE
NE
NE
Sample ID
Sation mple Date
Collec
Field Parameters
Analytical Results
Saprolite
MW-125
06/18/2015
5.7
30.61
21
55
3.66
127
332
10.6
<I
<i
24
<50
NA
1.61
1.09
295
<i
267
6.79
27
<0.2
50
0.403
NA
NA
NA
NA
NA
NA
MW-12S
06/24/2015
6.0
30.75
22
53
2.92
31
236
3.4
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.84
<3
<0.00005
<0.00005
<0.00005
<0.0002
MW-12S
09/10/2015
5.8
31.69
20
47
2.3
34
239
6.31
<1
<1
19
<50
NA
3.23
1.02
108
253
5.43
23
<0.2
55
<0.3
NA
NA
NA
NA
NA
NA
MW-12S
12/02/2015
5.7
32.15
17
68
2.7
159
364
6.9
<1
<1
16
<50
0.043
7.17
<1
336
152
5.08
21
<0.2
26
0.313
NA
NA
NA
NA
NA
NA
MW-12S
01/07/2016
5.8
31.69
10
111
2.86
185
390
9.89
<1
<1
11
<50
0.038
1.43
<1
178
68
4.76
18
<0.2
35
<0.3
NA
NA
NA
NA
NA
NA
MW-12S
04/06/2016
5.8
29.91
14
46
2.91
159
364
7.42
<1
<1
12
<50
0.058
<1
<1
338
INA
24
5.49
17
<0.2
29
0.408
0.537
<3
<0.00005
<0.00005
<0.00005
0.000217
MW-12S
07/11/2016
4.9
28.87
19
54
0.43
92
297
9.82
<1
<1
13
<50
0.045
<1
<1
385
34
4.34
21
<0.2
43
0.974
<1
<1
<0.00005
<0.00005
<0.00005
<0.0002
MW-12S
09/07/2016
5.8
29.93
20
42
2.12
141
346
9.24
<1
<1
12
<50
0.16
<1
<1
270
11
4.78
16
<0.2
52
0.711
1.56
<1
<0.00005
<0.00005
<0.00005
<0.0002
Total Count of Valid Samples
7
7
6
6
4
4
Transition Zone
BG-02
1210212010
6.6
35.57
19
576
NM
NM
NM
13
<0.5
<5
81.8
<50
NA
6.7
NA
2660
<5
198
NA
NA
<0.1
349
NA
NA
NA
NA
NA
NA
NA
BG-02
0412012011
6.3
33.35
21
623
1.26
7
212
12.1
<0.5
<5
61.3
<50
NA
<5
NA
439
<5
71.4
NA
NA
<0.1
382
NA
NA
NA
NA
NA
NA
NA
BG-02
07/11/2011
6.3
35.45
26
706
0.32
-77
128
9.2
<0.5
<5
64.8 B
<50
NA
10.2
NA
559
<5
64.2
NA
NA
<0.1
367 B
NA
NA
NA
NA
NA
NA
NA
BG-02
11/03/2011
6.3
35.90
17
671
0.67
-98
107
5.63
<0.5
<5
67.7
<50
NA
7.5
NA
312
<5
36.7
NA
NA
<0.1
341
NA
NA
NA
NA
NA
NA
NA
BG-02
04/04/2012
6.3
35.71
21
647
0.34
-93
113
5.55
<0.5
<5
61.5
<50
NA
<5
NA
152
<5
27
NA
NA
<0.1
412
NA
NA
NA
NA
NA
NA
NA
BG-02
07/09/2012
6.3
35.94
20
652
0.51
-78
127
9.47
<0.5
<5
53.4
<50
NA
5.9
NA
460
<5
54.9
NA
NA
<0.1
382
NA
NA
NA
NA
NA
NA
NA
BG-02
11/05/2012
6.3
36.20
17
640
0.51
90
295
9.02
<0.5
<5
60.2
<50
NA
6
NA
759
<5
43.7
NA
NA
<0.1
389
NA
NA
NA
NA
NA
NA
NA
BG-02
04/10/2013
6.3
35.33
18
725
0.17
-17
188
8.5
<1
<1
66
<50
NA
<5
NA
646
<1
111
NA
NA
<0.2
430
NA
NA
NA
NA
NA
NA
NA
BG-02
07/09/2013
6.4
34.66
19
695
0.31
-120
85
8.08
<1
<1
69
<50
NA
<5
NA
1130
<1
248
NA
NA
<0.2
430
NA
NA
NA
NA
NA
NA
NA
BG-02
11/13/2013
6.4
34.40
17
658
0.1
18
223
9.5
<1
<1
62
<50
NA
<5
NA
841
<1
177
NA
NA
<0.2
360
NA
NA
NA
NA
NA
NA
NA
BG-02
04/01/2014
6.4
33.78
17
709
0.2
68
273
7.5
<1
<1
71
<50
NA
<5
NA
943
<1
226
NA
NA
<0.2
450
NA
NA
NA
NA
NA
NA
NA
BG-02
07/18/2014
6.4
33.20
18
664
0.14
2
207
7.71
<1
<1
65
<50
NA
<5
NA
1010
<1
244
NA
NA
<0.2
400
NA
NA
NA
NA
NA
NA
NA
BG-02
11/12/2014
6.3
33.02
18
630
0.12
21
226
5.33
<1
<1
61
<50
NA
<5
NA
647
<1
ISO
NA
NA
<0.2
370
NA
NA
NA
NA
NA
NA
NA
BG-02
04/13/2015
6.3
31.93
18
652
0.2
-11
194
7.09
<1
<1
54
<50
NA
<5
<1
435
<1
150
49.7
NA
<0.2
380
NA
NA
NA
NA
NA
NA
NA
BG-02
07/07/2015
6.5
31.53
19
623
0.3
-129
76
8.51
<1
<1
54
<50
NA
<5
<1
467
<1
135
48.2
NA
<0.2
370
5.88
NA
NA
NA
NA
NA
NA
BG-02
09/11/2015
6.4
31.49
18
537
0.03
-40
165
6.88
<1
<1
50
<50
NA
4.05
<1
244
<1
130
44.6
291
<0.2
330
4
NA
NA
NA
NA
NA
NA
BG-02
1110312015
6.7
31.89
18
14
7.88
59
264
11.3
<1
<1
51
<50
NA
<5
<1
513
<1
102
46.7
318
<0.2
350
6.63
NA
NA
NA
NA
NA
NA
BG-02
12/09/2015
6.4
31.68
16
612
0.71
3
208
5.24
<0.5
<0.5
60
<50
<0.03
<0.5 B
<0.5
450
<0.1
200
51.3
390
<0.1
314
5.8
NA
NA
NA
NA
NA
NA
BG-02
01/08/2016
6.4
31.23
17
588
0.9
-16
189
1.98
<1
<1
58
<50
<0.03
<1
<1
471
<1
196
50.6
350
<0.2
370
4.2
NA
NA
NA
NA
NA
NA
BG-02
04/04/2016
6.4
30.42
18
651
0.15
139
344
2.71
<1
<1
65
<50
<0.03
<5
<1
585
<1
237
56
391
<0.2
360
5
4.07
<3
<0.00005
<0.00005
<0.00005
0.00102
BG-02
07/13/2016
6.2
30.04
17
638
0.22
-51
154
1 3.4
<1
<1
59
<50
<0.03
<5
<1
484
<1
207
53.3
374
<0.2
370
4.79
4.4
3.12
<0.00005
<0.00005
<0.00005
0.000918
BG-02
09/07/2016
6.7
30.04
18
635
0.14
-82
123
2.9
<1
<1
59
<50
<0.03
<1
<1
553
<1
194
53.5
378
<0.2
370
5.34
0.997
<1
<0.00005
<0.00005
<0.00005
0.000791
MW-12D
06/24/2015
6.2
31.15
17
136
2.42
-1
204
4.02
1.63
<1
26
<50
NA
<1
1.37
326
<1
683
8.98
95
<0.2
120
0.719
NA
NA
NA
NA
NA
NA
MW-12D
06/25/2015
6.2
31.10
17
124
2.72
29
234
4.5
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-12D
09/10/2015
6.2
32.10
17
125
2.6
39
244
3.88
<1
<1
20
<50
NA
1.1
<1
277
<1
218
9.03
85
<0.2
100
0.637
NA
NA
NA
NA
NA
NA
MW-12D
12/02/2015
6.0
32.50
16
135
3.4
135
340
11.3
1.44
<1
21
<50
0.55
3.43
<1
504
<1
193
9.18
90
<0.2
97
1.01
NA
NA
NA
NA
NA
NA
MW-12D
12/04/2015
6.1
32.83
18
122
3.35
140
345
8.08
<0.5
<0.5
20
<50
0.64 M1
4.6
0.51
280
<0.1
160
9.56
85
<0.1
122
<1
NA
NA
NA
NA
NA
NA
MW-12D
01/07/2016
6.1
31.95
15
118
3.1
136
341
9.26
<1
<1
22
<50
0.52 M1
2.99
<1
968
<1
131
8.76
87
<0.2
82
1.65
NA
NA
NA
NA
NA
NA
MW-12D
04/05/2016
5.9
30.28
16
125
3.45
120
325
9.9
<1
<1
21
<50
0.6
1.64
<1
385
<1
100
9.35
92
<0.2
120
1.06
6
<3
<0.00005
<0.00005
<0.00005
0.000233
MW-12D
07/11/2016
5.7
29.17
18
134
2.91
60
265
9.35
<1
<1
17
<50
0.73
1.19
<1
223
<1
81
9.26
88
<0.2
98
0.898
2.62
<1
<0.00005
<0.00005
<0.00005
0.0000919j
MW-12D
09/07/2016
6.3
30.35
17
128
3.77
38
243
9.2
<1
<1
16
<50
0.75
2.99
<1
409
<1
64
9.05
83
<0.2
100
1.13
2.19
<1
<0.00005
<0.00005
<0.00005
0.000105j
Total Count of Valid Samples
27
27
26
26
26
26
26
14
6
6
6
6
Bedrock
BG-01
101311200E
5.7
35.99
16
141
NM
NM
NM
NM
0.13
1.4
1040
6
NA
36.9
NA
C5700
33.1
2270
NA
NA
0.35
189
NA
NA
NA
NA
NA
NA
NA
BG-01
06/04/2009
7.0
34.44
18
161
NM
NM
NM
NM
2.5
<1
155
<200
NA
4.7
NA
2100
12.9
131
NA
NA
<1
167
NA
NA
NA
NA
NA
NA
NA
BG-01
1012112009
5.3
36.55
16
102
NM
NM
NM
NM
4.2
<1
175
<200
NA
15.7
NA
4610
2.3
166
NA
NA
<1
146
NA
NA
NA
NA
NA
NA
NA
BG-01
0412212010
5.6
33.59
IS
107
NM
NM
NM
NM
<10
<10
120
<50
NA
8.2
NA
2000
12
39
NA
NA
<50
17
NA
NA
NA
NA
NA
NA
NA
BG-01
1210612010
5.9
36.64
16
186
NM
NM
NM
10
<0.5
<5
105
<50
NA
15.3
NA
1080
<5
26.3
NA
NA
<0.1
126
NA
NA
NA
NA
NA
NA
NA
BG-01
0412012011
5.5
35.36
20
158
1.16
50
255
22.7
<0.5
<5
99.1
<50
NA
6.1
NA
702
<5
26.6
NA
NA
<0.1
135
NA
NA
NA
NA
NA
NA
NA
BG-01
0711112011
5.5
31.17
24
163
0.99
-71
134
24.2
<0.5
<5
101 B
<10
NA
40.1
NA
1040
<5
29.6
NA
NA
<0.1
117 B
NA
NA
NA
NA
NA
NA
NA
BG-01
11/03/2011
5.5
37.18
18
165
1.27
-103
102
3.84
<0.5
<5
95.4
<50
NA
7.9
NA
261
<5
8.9
NA
NA
<0.1
106
NA
NA
NA
NA
NA
NA
NA
BG-01
04/04/2012
5.6
36.01
21
168
0.93
-91
114
9.52
<0.5
<5
93
<50
NA
6.7
NA
388
<5
11.6
NA
NA
<0.1
107
NA
NA
NA
NA
NA
NA
NA
BG-01
07/09/2012
5.3
36.69
19
166
1.05
-64
141
9.32
<0.5
<5
101
<50
NA
20
NA
640
<5
21.6
NA
NA
<0.1
128
NA
NA
NA
NA
NA
NA
NA
BG-01
11/05/2012
5.4
37.45
17
166
0.89
178
383
9.45
<0.5
<5
101
<50
NA
<5
NA
526
<5
55.6
NA
NA
<0.1
123
NA
NA
NA
NA
NA
NA
NA
BG-01
04/10/2013
5.2
35.25
17
165
0.79
213
418
9.05
<1
<1
97
<50
NA
7
NA
323
<1
15
NA
NA
<0.2
130
NA
NA
NA
NA
NA
NA
NA
BG-01
07/09/2013
5.4
34.17
19
160
1.02
152
357
8.95
<1
<1
97
<50
NA
<5
NA
488
<1
48
NA
NA
<0.2
130
NA
NA
NA
NA
NA
NA
NA
BG-01
11/13/2013
5.5
34.42
15
160
1.3
1 256
461
8.2
<1
<1
95
<50
NA
<5
NA
412
<1
27
NA
NA
<0.2
130
NA
NA
NA
NA
NA
NA
NA
BG-01
04/01/2014
5.4
32.85
15
159
1.2
340
545
8.2
<1
<1
90
<50
NA
<5
NA
290
<1
14
NA
NA
<0.2
140
NA
NA
NA
NA
NA
NA
NA
BG-01
07/18/2014
5.5
32.12
19
158
1.4
232
437
6.68
<1
<1
93
<50
NA
<5
NA
325
<1
15
NA
NA
<0.2
140
NA
NA
NA
NA
NA
NA
NA
BG-01
11/12/2014
5.5
31.90
18
167
1.64
255
460
9.96
<1
<1
95
<50
NA
<5
NA
466
<1
25
NA
NA
<0.2
120
NA
NA
NA
NA
NA
NA
NA
BG-01
04/13/2015
5.5
30.16
17
154
1.2
296
501
8.9
<1
<1
90
<50
NA
<5
<1
409
<1
35
12.4
NA
<0.2
130
NA
NA
NA
NA
NA
NA
NA
BG-01
0710712015
5.6
29.86
18
151
1.6
113
318
10
<1
<1
97
<50
NA
<5
<1
557
<1
23
11.8
NA
<0.2
130
4.94
NA
NA
NA
NA
NA
NA
BG-01
09/10/2015
5.3
30.43
19
168
1.5
190
395
7.83
<1
<1
91
<so
NA
<1
<1
300
<1
26
11.6
172
<0.2
120
3.93
NA
NA
NA
NA
NA
NA
BG-01
11/03/2015
6.9
30.00
20
14
9.3
7
212
1.79
<1
<1
90
<50
NA
<5
<1
45
<1
7
11.8 B2
179
<0.2
ISO
3.4
NA
NA
NA
NA
NA
NA
C:\Users\bjstrickland\App Data\Local\Temp\MAYO_BG_GW_Sep_2016_597493\MAYO_BG_GW_Sep_2016.x1sx Page I of 2

TABLE 1
BACKGROUND GROUNDWATER DATA SUMMARY THROUGH 2O16-09
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Analytical Parameter
pH
Water
Level
Temp
Spec
C.
DO
ORP
Eh
Turbidity
Antimony
Arsenic
Barium
Boron
Chromium
(VI)
Chromium
Cobalt
Iron
Lead
Manganese
Sodium
Strontium
Thallium
Total
Dissolved
Solids
Vanadium
Radium-226
Radium-228
Uranium-233
Uranium-234
Uranium-236
Uranium-238
Reporting Units
S.U.
ft
Deg C
umhos/cm
mg/L
mV
mV
NTUs
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
ug/L
ug/L
mg/L
ug/L
pCi/L
pCi/L
ug/mL
ug/mL
ug/mL
ug/mL
15A NCAC 02L Standard
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
1*
10
700
700
0.07^
10
1*
300
15
50
NE
NE
0.2*
500
0.3*
NE
NE
NE
NE
NE
NE
Sample ID
Sample
Collection Date
Field Parameters
Analytical Results
BG-01
12/05/2015
5.5
30.34
1 16
150
1.55
128
333
1 9.5
10.5
10.5
94
150
0.31
1
10.5
350
1 0.13
18
12.2
180
<0.1
118
4.2
NA
NA
NA
NA
NA
NA
BG-01
01/08/2016
5.1
29.36
15
147
1.48
67
272
5.78
<1
<1
87
<50
0.2
<1
<1
272
<1
11
11.9
166
<0.2
130
3.94
NA
NA
NA
NA
NA
NA
BG-01
04/04/2016
5.5
28.46
17
149
1.58
206
411
4.3
<1
<1
88
<50
0.19 M1
<5
<1
190
<1
12
11.5
167
<0.2
130
3.94
2.25
<3
<0.00005
<0.00005
<0.00005
<0.0002
BG-01
07/13/2016
5.0
28.42
19
148
1.64
85
290
3.84
<1
<1
86
<50
0.23
<5
<1
89
<1
7
11.9
177
<0.2
140
3.58
1.29
<1
<0.00005
<0.00005
<0.00005
<0.0002
BG-01
09/08/2016
5.5
28.98
18
147
1.61
148
353
9.49
<1
<1
90
<50
0.3
<1
<1
336
<1
13
11.7
172
<0.2
130
4.69
3.24
0.636
<0.00005
<0.00005
<0.00005
<0.0002
MW-IOBR
0311712015
6.2
13.19
22
467
0.55
99
304
35.5
<1
<1
27
<50
NA
1.3
<1
883
<1
894
37.9
210
<0.2
330
1.66
NA
NA
NA
NA
NA
NA
MW-10BR
09/11/2015
6.1
13.36
25
452
0.5
14
219
1.06
<1
<1
5
<50
NA
<1
<1
37
<1
135
39.7
198
<0.2
310
1.73
NA
NA
NA
NA
NA
NA
MW-10BR
12/03/2015
6.1
13.30
16
424
0.4
19
224
1.5
<1
<1
<5
<50
<0.03
<1
<1
193
<1
84
37.7
198
<0.2
320
1.5
NA
NA
NA
NA
NA
NA
MW-10BR
O1/07/2016
6.1
13.08
13
449
0.53
50
255
1.64
<1
<1
<5
<50
<0.03
<1
<1
33
<1
103
39.5
195
<0.2
300
1.68
NA
NA
NA
NA
NA
NA
MW-10BR
04/05/2016
6.2
12.70
13
443
0.43
141
346
0.98
<1
<1
<5
<50
<0.03
<1
<1
29
<1
71
38.8
195
<0.2
300
1.7
0.989
1.77
<0.00005
<0.00005
<0.00005
0.000188j
MW-10BR
07/13/2016
6.3
11.96
21
446
0.65
21
226
4.12
<1
<1
6
<50
0.041
<1
<1
24
<1
74
41.7
198
<0.2
310
2.01
0.9
0.518
<0.00005
<0.00005
<0.00005
0.0000755j
MW-10BR
09/07/2016
6.2
12.95
21
442
0.38
65
270
2.25
<1
<1
<5
<50
0.07
<1
<1
35
<1
72
38.2
208
<0.2
310
1.91
1.64
<1
<0.00005
<0.00005
<0.00005
<0.0002
MW-11BR
O6/25/2015
8.1
40.25
19
382
2.79
28
233
3.91
1.32
<1
44
<50
NA
1.73
<1
115
<1
67
14.3
200
0.323
250
2.69
NA
NA
NA
NA
NA
NA
MW-11BR
09/11/2015
9.2
36.86
21
282
1.1
33
238
7.87
1.74
1.06
32
<50
NA
15.6
<1
153
<1
11
15.6
318
<0.2
180
9.15
NA
NA
NA
NA
NA
NA
MW-11BR
12/03/2015
9.2
36.70
14
230
1.8
-10
195
8.7
1.57
1.05
22
<50
13.6
24.1
<1
304
<1
29
20.7
250
<0.2
150
12.1
NA
NA
NA
NA
NA
NA
MW-11BR
O1/07/2016
9.8
36.18
14
214
1.2
-40
165
5.04
1.9
1.02
24
<50
12.2
15.1
<1
98
<1
17
16.6
253
<0.2
130
12.7
NA
NA
NA
NA
NA
NA
MW-11BR
04/05/2016
10.3
35.21
15
208
1.28
154
359
6.43
1.6
<1
25
<50
18.4
17.2
<1
178
<1
25
16.5
256
<0.2
140
14.5
0.33
<3
<0.00005
<0.00005
<0.00005
0.000351
MW-11BR
07/13/2016
10.6
34.99
18
262
0.94
-99
106
7.54
1.48
<1
27
<50
12.5
14.5
<1
104
<1
15
17.3
278
<0.2
140
15.6
<1
<1
<0.00005
<0.00005
<0.00005
0.00025
MW-11BR
09/06/2016
10.8
36.44
20
248
1.44
-77
129
7.47
1.76
<1
27
<50
19.4 M6
15.5
<1
146
<1
10
16.1
276
<0.2 B2
110
13.9
<1
0.785
<0.00005
<0.00005
<0.00005
0.00018j
MW-13BR
O6/23/2015
7.2
31.28
21
580
0.4
-228
-23
2.22
<1
<1
40
<50
NA
<1
1.19
1130
<1
474
25.7
418
<0.2
370
0.381
1.22
<3
<0.00005
<0.00005
<0.00005
<0.0002
MW-13BR
09/08/2015
1 6.9
31.63
23
579
0.5
-136
69
7.55
<1
<1
51
<50
NA
<1
<1
2400
<1
630
24.8
430
0.538
360
0.465
NA
NA
NA
NA
NA
NA
MW-13BR
12/02/2015
7.0
31.55
16
543
0.3
-130
75
6.5
<1
<1
45
<50
<0.03
16.3
<1
2490
<1
548
23.3
416
<0.2
330
0.429
NA
NA
NA
NA
NA
NA
MW-13BR
O1/07/2016
7.3
30.36
11
544
0.5
-75
130
7.79
<1
<1
42
<50
<0.03
7.65
<1
2550
<1
519
23.7
389
<0.2
330
<0.3
NA
NA
NA
NA
NA
NA
MW-13BR
04/05/2016
7.1
29.70
15
566
0.3
151
356
9.05
<1
<1
35
<50
<0.03
<1
1.01
1750
<1
481
20.8
393
<0.2
340
<0.3
2.65
<3
<0.00005
<0.00005
<0.00005
0.000629
MW-13BR
07/11/2016
7.0
28.68
19
553
0.19
-89
116
8.8
<1
<1
29
<50
<0.03
4.51
1.92
1330
<1
348
19.4
380
<0.2
330
0.871
2.33
0.773
<0.00005
<0.00005
<0.00005
0.00188
MW-13BR
09/06/2016
7.4
29.77
21
554
0.42
-163
42
9.67
<1
<1
38
<50
<0.03
2.02
1.17
2520
<1
432
18.4
381
<0.2 B2
330
<0.3
67.2
<1
<0.00005
<0.00005
<0.00005
0.000451
MW-14BR
0311212015
6.7
16.20
14
278
0.47
41
224
35
<1
<1
30
<50
NA
<1
1.41
907
<1
544
33
149
<0.2
190
1.29
NA
NA
NA
NA
NA
NA
MW-14BR
09/09/2015
1 6.9
18.03
22
413
1.1
-16
189
3.36
<1
1.8
42
65
NA
<1
1.09
2730
<1
648
60.2
167
<0.2
260
0.469
NA
NA
NA
NA
NA
NA
MW-14BR
12/02/2015
6.7
16.54
15
282
0.57
26
231
2.77
<1
<1
22
<50
<0.03
<1
<1
396
<1
304
41.6
141
<0.2
210
1.82
NA
NA
NA
NA
NA
NA
MW-14BR
O1/07/2016
6.7
16.31
11
258
2.73
64
269
2.45
<1
<1
17
<50
<0.03
<1
<1
98
<1
199
37.4
131
<0.2
180
2.45
NA
NA
NA
NA
NA
NA
MW-14BR
04/05/2016
6.7
16.27
14
261
2.13
220
425
2.45
<1
<1
19
<50
<0.03
<1
<1
89
<1
196
38.4
134
<0.2
200
2.86
0.999
<3
<0.00005
<0.00005
<0.00005
0.000241
MW-14BR
07/11/2016
6.7
15.35
20
311
0.23
90
295
1.34
<1
<1
22
<50
<0.03
<1
<1
37
<1
247
47.9
140
<0.2
200
2.48
0.947
<1
<0.00005
<0.00005
<0.00005
0.000456
MW-14BR
09/07/2016
6.7
17.61
1 18
324
0.24
21
226
5.69
<1
<1
28
<50
<0.03
<1
<1
56
<1
322
46.3 M4
168
<0.2
230
2.07
2
<1
<0.00005
<0.00005
<0.00005
0.000314
Total Count of Valid Samples
44
44
44
44
44
25
33
44
34
44
44
33
16
16
16
16
16
Prepared by: RKD Checked by: JAW
Notes.
Red teat indicates samples not used in determination of provisional preliminary background threshold values (PPBTVs) - eliminated due to pH > 8.5 or turbidity >10 NTU or or pH and/or turbidity not measured
Green text indicates well completed in bedrock with expected naturally occuring high pH. Additional evaluation of bedrock is underway to verify naturally occuring pH values. Values are retained for background statistical analysis at this time.
= Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard, the IMAC, or the NC DHHS Screening Level for chromium VI. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013)
Spec Cord = Specific Conductance R = Feet umhos/cm = Micro mhos per centimeter Temp = Temperature NTU = Nephelometric turbidity unit pCi/I = picocuries per liter
S.U. = Standard Unit NA = Not analyzed mg/L = Milligram per liter DO = Dissolved oxygen NE = Not established NM = Not measured
Eh = Redox Potential Deg C = Degrees Celsius mV = Millivolts ORP = Oxidation -Reduction Potential ug/L = Microgram per liter ug/mL = microgram per milliliter
= NC OHMS Health Screening Level
< = 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.
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 compliance purposes.
j = Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
M1 = Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
M4 = The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level.
M6 = Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.
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