MAYO_BG_Soil_Sep_2016_20171005

TABLE 1
BACKGROUND SOIL DATA SUMMARY
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Analytical Parameter
pH
Aluminum
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Calcium
Chloride
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Manganese
Mercury
Molybdenum
Nickel
itrate N)
(asReporting
Potassium
Selenium
Sodium
Strontium
Sulfate
Thallium
Vanadium
Zinc
Units
S.U.
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
PSRG Protection of Groundwater
NE
NE
0.9
5.8
580
63
45
3
NE
NE
360000
0.9
700
150
270
T NE
65
1
NE
130
NE
NE
2.1
NE
NE
NE
0.28
6
1200
Sample ID
Sample Collection
Date
Sample Depth
Elevation (ft.)
Water Table
Elevation (ft.)'
MW-03BR (0.8-1.25)
02/05/2015
434
423.68
5.0
7030
<3
<3
57.6
0.34 j
<3
<0.36
332
<299
11.3
5.4
6.3
8480
3.3
2500
327
0.013
<6
5.1
<29.9
1070
<3
<59.7
5.4
<299
<3
16
25.3
MW-08BR (0.75-1.25)
02/11/2015
466
433.17
6.0
14500
<3.2
<3.2
147
0.82
<63.4
<0.38
1120
<309
62.2
21.3
34.7
24700
8.9
10500
1230
<0.0096
<12.7
29.4
<30.9
6590
<3.2
<1270
13.2
<309
<3.2
50.6
88.9
MW-08BR (25.5-26)
02/11/2015
441
433.17
7.4
23700
<2.7
<2.7
193
0.39
31 j
<0.33
3740
<272
419
32.9
45.7
31300
2 j
29900
933
<0.0089
<10.9
157
<27.2
5450
<2.7
173
33.6
<272
<2.7
75.8
59.4
MW-10BR (0.75-1.0)
02/23/2015
512
501.37
6.3
7640
<1.1
1.4
81.8
0.4
13.6 j
0.1 j
1210
NA
41.9
12.4
28.9
18600
9.8
5590
527
0.0053 j
<0.57
16.3
NA
2660
1.4
93.4
9.4
NA
<1.1
35.1
61.3
MW-11BR (0-2)
04/14/2015
522
492.41
5.2
19700
<7.5
<7.5
43.1
<0.38
<18.8
<0.89
1690
<354
22.6
6.4 j
59.1
52900
6.1 j
1590
52.6
0.13
<3.8
1.4 j
<35.4
<376
<7.5
<376
18.6
<354
<7.5
208
17.2
MW-12D (1-2)
04/26/2015
586
558.78
4.9
11000
<6
3.6 j
19.6
<0.3
27.4
<0.72
<150
<302
43.6
<6
12.4
31200
6.8
139 j
22.1
0.036
<3
0.83 j
<30.2
182 j
<6
<299
<3
<302
<6
61
5.2 j
MW-12D (25-26)
04/27/2015
562
558.78
5.9
3530
<6
<6
67.4
<0.3
9.8 j
<0.72
<149
<301
3.2
6
22.4
11900
7.2
1190
395
<0.0095
<3
<1.5
<30.1
1520
<6
<299
<3
<301
<6
8.2
15
MW-13BR (0-2)
04/12/2015
525
500.13
4.9
15500
<6.5
<6.5
72.9
0.33
<16.3
<0.78
38.1
<334
6.1
<6.5
10.9
19600
6.2 j
1840
82.8
0.029
0.42 j
0.53
<33.4
1360
<6.5
<65.1
1.8
<334
<6.5
32.4
25.4
MW-15BR (0.5-1)
05/09/2015
460
409.01
5.2
8440
<6.2
<6.2
64.6
0.24 j
<15.5
<0.74
451
<305
10.4
3.9 j
12.5
15600
4.7 j
3760
108
0.0056 j
<3.1
1.3 j
<30.5
1370
<6.2
<309
11.2
<305
<6.2
27.1
18.9
SB-01 (1-2)
03/04/2015
525
Not encountered
6.3
7030
<1.4
1.2 j
49.6
0.24
9.6
<0.17
655
<362
15.7
3.7
8.8
12400
9.6
1670
104
0.033
<0.7
2.5
<36.2
881
<1.4
35.4 j
6
<362
<1.4
28.3
14.5
SB-01 (13.5-14.5)
03/04/2015
513
Not encountered
5.5
4960
<1.3
1.2 j
61.5
0.56
<15.9
<0.15
270
<312
<1.6
8.9
20.6
8490
2.9
2440
678
<0.01
<3.2
<1.6
<31.2
1550
1.4
40.7 j
8.3
<312
<1.3
17.8
13.2
SB-02 (0.5-2)
03/03/2015
553
Not encountered
5.3
10200
<1.6
1.9
65.7
0.52
16.3 j
0.13 j
227
<392
12.9
6.4
22.8
18300
7.5
2420
365
0.02
<0.8
1.7
<39.2
2020
1.3 j
<79.8
4.3
<392
<1.6
44.8
27.3
SB-02 (11.0-12.5)
03/03/2015
543
Not encountered
6.0
5930
<1.2
1.5
31.3
0.39
7.8
<0.15
22.2 j
<309
10.8
1.6
5.5
10300
4.8
1070
69.4
<0.0096
0.89
0.91
<30.9
800
0.85 j
30.9 j
1.1
<309
<1.2
23.8
14.9
SB-03 (5-6)
03/04/2015
550
Not encountered
8.6
5030
<1.1
0.64 j
55.2
0.15
5.7
0.094 j
1420
<272
20.7
4.9
14
8070
2.4
3810
348
0.0096
1.1
7.7
<27.2
2950
<1.1
104
11
<272
<1.1
15
30.8
SB-03 (17-18.5)
03/04/2015
537
Not encountered
4.9
11800
<1.5
1.6
51.4
0.26
12.9
<0.18
208
<360
35.6
5.2
15.5
18100
8.2
4250
120
<0.012
<0.75
10.9
<36
2410
<1.5
40.9 j
4.4
<360
<1.5
38.4
32.4
SB-05 (1-2)
03/04/2015
496
Not encountered
6.0
5320
<1.4
1.8
47.1
0.36
<17
0.12 j
313
<346
<1.7
2.8
11.1
8280
5.4
1940
406
<0.011
<3.4
<1.7
<34.6
1730
1.9
<340
4.2
<346
<1.4
6.8
36.3
SB-05 (2.3-3.3)
03/04/2015
495
Not encountered
5.9
3510
<1.1
1.1
40.9
0.35
<13.5
0.091 j
189
<271
<1.4
1.7
3.9
6670
5.5
1660
393
<0.0086
<2.7
<1.4
<27.1
1550
1.2
<271
5.2
<271
<1.1
5.9
31.6
SB-05 (8-9)
03/04/2015
489
Not encountered
6.5
1480
<1.1
1 j
22.2
0.5
<13.7
<0.13
81.4
<272
<1.4
2.2
43.8
5790
11.8
368
195
<0.0093
0.36 j
<0.27
<27.2
111
0.87 j
46.7 j
3.1
<272
<1.1
4.8
12.3
SB-06 (1-2)
03/04/2015
509
Not encountered
5.9
2510
<1.3
1.2 j
54.8
0.17
2.9 j
<0.15
<32.1
<309
0.74
2.5
13.1
3920
4.2
816
192
<0.0093
<0.64
0.55
<30.9
801
0.9 j
67.2
4.1
<309
<1.3
2.7
14.7
Total Count of Valid Samples
19
19
0*
15
19
19
18
19
19
18*
19
17
19
19
19
19
19
19
19
19
18*
19
11
19
19
18*
0*
19
19 11
Prepared by: RKD Checked by: JAW
Notes:
0 Concentration or detection limit greater than PSRG Protection of Groundwater Standard
mg/kg = milligrams per kilogram
NE = Not established
S.U. = Standard Units
j = Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
< = concentration not detected at or above the adjusted reporting limit.
NA = Not analyzed
* = No detectable concentrations within data set
PSRG Protection of Groundwater = NCDEQ IHSB Preliminary Soil Remediation Soil Remediation Goals Table - October 2016
1 - Water table elevations collected during site -wide well gauging event on June 23-24, 2016.
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