NC0003433_Table 12-1 Ash Pore Water Risk Screening_20150902

TABLE 12-1
RISK SCREENING TABLE: COAL ASH PORE WATER DATA
CAPE FEAR STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, MONCURE, NC
Redox
Water
Spec
Ferrous
Aluminum
Antimony
Arsenic
Barium
Beryllium
gi-
Boron
Cadmium
Calcium
Carbonate
Chromium
Cobalt
Copper
Iron
Analytical Parameter
pH
Temp
DO
ORP
Eh
Turbidity
Alkalinity
carbonate
Chloride
Cr(III)/Cr(VI)
Assignment
Level
Cond
Iron
Alkalinity
Alkalinity
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
TOT
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
Reporting Units
None
S.U.
ft
Deg C
u/cos
m g/l
mV
mV
NTU
mg/I
mg/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/l
ug/1
ug/l
ug/l
mg/I
ug/I
ug/I
ug/l
ug/l
mg/l
mg/I
mg/l
ug/I
ug/l
ug/l
ug/l
mg/l
mg/l
ug/I
ug/l
m
15A NCAC 02L Standard
NE
6.5-8.5
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
1*
NE
10
NE
700
NE
4*
NE
NE
700
NE
2
NE
NE
250
NE
10
NE
1*
NE
1
NE
300
Sample ID
Sample
Field Parameters
Analytical Results
Collection Date
ASH PORE WATER
ABMW-011'I
05/08/2015
Anoxic
8.0
19.65
25
468
0.39
-202
3
4.13
NM
75
26
61
<1
<1
532
582
117
119
<1
<1
75
2310
2270
<1
<1
53.6
<10
18
<1
<1
<1
<1
<0.001
<0.001
1570
1620
ABMW-03(')
05/20/2015
NM
NM
NM
NM
NM
NM
NM
NM
NM
NM
170
215
232
3.1
3.59
361
341
133
137
<1
<1
160
6250
6360
<1
<1
120
<10
6.7
<1
<1
<1
<1
<0.001
<0.001
70
91
ABMW-04(')
05/14/2015
Anoxic
7.3
16.23
19
840
0.19
-184
21
4.36
NM
230
13
30
<1
<1
709
1010
266
258
<1
<1
230
1410
1350
<1
<1
82.4
<10
37
<1
<1
<1
<1
<0.001
<0.001
3960
3630
PZ-06
08/05/2015
Anoxic
7.5
19.45
21
1083
0.31
-161
44
4.63
NM
310
43
170
2.17
2.3
607
647
307
312
<1
<1
310
5160
5380
<1
<1
183
<10
23
<1
<1
18.6
18.7
0.00381
<0.001
2660
3050
PZ-07
08/06/2015
Anoxic
4.0
10.80
18
7193
0.29
179
384
4.79
NM
<10
431000
466000
<10
<10
201
193
42
<500
305
318
<10
1050
<5000
<10
<10
370
<10
13
145
138
1100
1050
<0.01
<0.01
2040000
2140000
PZ-08
08/05/2015
Anoxic
6.7
18.10
23
975
0.36
-34
172
4.17
NM
190
7
16
4.22
2.85
224
124
68
61
<1
<1
190
463
465
<1
<1
107
<10
41
<1
<1
12.7
17.8
<0.001
<0.001
2560
2390
DETECTIONS/SAMPLES
---
---
---
---
---
---
---
---
---
---
5/6
6/6
6/6
3/6
3/6
6/6
6/6
6/6
5/6
1/6
1/6
5/6
6/6
5/6
0/6
0/6
6/6
0/6
6/6
1/6
1/6
3/6
3/6
1/6
0/6
6/6
6/6
AVERAGE ASH PORE WATER
CONCENTRATION (DETECTIONS
---
---
---
---
---
---
---
---
---
---
195
71,884
77,752
3.16
2.91
439
483
156
177
305
318
193
2,774
3,165
---
---
153
---
23
145
138
377
362
0.00381
---
341,803
358,464
ONLY)
MAXIMUM ASH PORE WATER
GROUNDWATER CONCENTRATION
---
---
---
---
---
---
---
---
---
310
431,000
466,000
4.22
3.59
709
1,010
307
312
305
318
310
6,250
6,360
---
---
370
---
41
145
138
1,100
1,050
0.00381
---
2,040,000
2,140,000
NUMBER OF ASH PORE WATER
SAMPLES EXCEEDING 02L
___
0
0
0
0
4
0
6
0
0
0
1
0
0
3
0
1
0
0
0
0
1
0
3
0FO
0
5
Prepared by: KDF Checked by: RLP
Notes:
0- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L, Appendix 2, April 1, 2013.
0- Highlighted concentration indicates analytical reporting limit is greater than the 15A NCAC 02L, Appendix 2, April 1, 2013.
ORP = Oxidation Reduction Potential my = millivolts --- = Not applicable
DIS = Dissolved NE = Not established
TOT = Total NTU = nephelometric turbidity unit
Temp = Temperature S.U. = Standard Unit
DO = Dissolved Oxygen ug/I = microgram per liter
Deg C = Degree Celsius umhos/cm = micro mhos per centimeter
mg/I = milligrams per liter Spec Cond = Specific Conductance
mg-N/L = miligram nitrogen per liter ft = feet
< = concentration not detected at or above the reporting limit.
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L, Appendix 1, April, 1, 2013.
Note 1: Hexavalent Chromium concentration is less than EPA screening value for tapwater (0.035 ug/L). See Table 10-3
(USEPA Regional Screening Levels [RSLs] rev., ]une 26, 2015)
P:\Duke Energy Progress. 1026\103. Cape Fear Ash Basin GW Assessment\1.11 CSA Reporting\Tables\Table 12-1 Ash Pore Water Risk Screening.xlsx Page 1 of 2

TABLE 12-1
RISK SCREENING TABLE: COAL ASH PORE WATER DATA
CAPE FEAR STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, MONCURE, NC
Lead
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Nitrate
Potassium
Selenium
Sodium
Strontium
Thallium
Total
Total
Total
Vanadium
Zinc
Analytical Parameter
Methane
(as N)
Sulfate
Sulfide
Dissolved
Organic
Suspended
Solids
Carbon
Solids
DIS
TOT
TOT
DIS
TOT
DIS
I TOT
DIS
TOT
DIS
TOT
TOT
DIS
TOT
TOT
DIS
TOT
DIS
TOT
DIS
TOT
DIS
TOT
Reporting Units
ug/1
ug/I
mg/l
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
ug/I
mg-N/L
mg/I
ug/I
ug/I
mg/I
mg/I
mg/l
mg/I
mg/I
ug/I
ug/I
mg/l
mg/I
mg/I
ug/I
ug/1
mg/l
mg/I
1
15A NCAC 02L Standard
NE
15
NE
NE
50
NE
1
NE
NE
NE
NE
100
10
NE
NE
20
NE
NE
NE
250
NE
NE
0.2*
500
NE
NE
NE
0.3*
NE
1
Sample ID
Sample
Analytical Results
Collection Date
ASH PORE WATER
ABMW-011'I
05/08/2015
<1
<1
7.08
163
161
<0.05
<0.05
<10
449
457
1.97
1.92
<0.01
8.64
1.26
<1
19
1.21
1.21
96
0.137
<0.2
<0.2
280
1.8
6
<0.3
0.522
<0.005
0.006
ABMW-031'i
05/20/2015
<1
<1
67.4
124
124
<0.05
<0.05
940
261
239
5.1
5.45
0.016
19.7
1.92
2.32
23.4
4.37
4.45
410
<0.2
0.442
0.422
820
1.2
<5
22.3
22.1
0.005
<0.005
ABMW-041'i
05/14/2015
<1
<1
17.3
409
395
<0.05
<0.05
6200
32.4
35.3
3.38
3.07
<0.01
13.4
1.67
<1
57
3.27
3.2
120
<0.2
<0.2
<0.2
500
1.3
10
<0.3
<0.3
0.006
<0.005
PZ-06
08/05/2015
<1
<1
24.9
1070
1110
<0.05
<0.05
56
263
269
16.2
15.9
<0.01
13
<1
<1
22
5.23
5.22
230
<0.1
<0.2
0.255
760
1.1
13
9.31
11.1
0.022
<0.005
PZ-07
08/06/2015
11.2
10.3
185
24800
26300
<0.05
<0.05
310
<10
<10
2180
2050
<0.01
97.9
16.1
16.4
79.7
10
11
18000
<0.1
13.2
12.6
12000
1.1
16
1910
1880
2.69
3.45
PZ-08
08/05/2015
<1
<1
1 25.4
1570
1 2170
<0.05
I <0.05
<10
122.1
1 16.9
33.9
1 43.5
0.082
1 12.4
<1
1.07
59.2
2.62
2.79
220
<0.1
1.02
1.31
620
0.492
42
9.49
6.43
0.028
0.011
DETECTIONS SAMPLES
1/6
1/6
6/6
6/6
6/6
0/6
0/6
4/6
5/6
5/6
6/6
6/6
2/6
6/6
4/6
3/6
6/6
6/6
6/6
6/6
1/6
3/6
4/6
6/6
6/6
5/6
4/6
5/6
5/6
3/6
AVERAGE ASH PORE WATER
CONCENTRATION (DETECTIONS
11.2
10.3
54.5
4,689
5,043
---
---
1,877
206
203
373.4
353.3
0.049
27.5
5.24
6.6
43.4
4.45
4.6
3,179
0.137
4.89
3.65
2,497
1.2
17
487.8
384.03
0.550
1.156
ONLY)
MAXIMUM ASH PORE WATER
GROUNDWATER CONCENTRATION
11.2
10.3
185.0
24,800
26,300
---
---
6,200
449
457
2,180.0
2,050.0
0.082
97.9
16.10
16.4
79.7
10.00
11.0
18,000
0.137
13.20
12.60
12,000
1.8
42
1,910.0
1,880.00
2.690
3.450
NUMBER OF ASH PORE WATER
SAMPLES EXCEEDING 02L
0
0
0
0
6
0
0
0
0F
0
1
0
0
0
0
0
0
0
1
2
0
0
4
4
0
0
0
5
0
1
Prepared by: KDF Checked by: RLP
Notes:
0- Bold highlighted concentration indicates exceedance of the 15A NCAC 02L, Appendix 2, April 1, 2013.
0- Highlighted concentration indicates analytical reporting limit is greater than the 15A NCAC 02L, Appendix 2, April 1, 2013.
ORP = Oxidation Reduction Potential my = millivolts --- = Not applicable
DIS = Dissolved NE = Not established
TOT = Total NTU = nephelometric turbidity unit
Temp = Temperature S.U. = Standard Unit
DO = Dissolved Oxygen ug/I = microgram per liter
Deg C = Degree Celsius umhos/cm = micro mhos per centimeter
mg/I = milligrams per liter Spec Cond = Specific Conductance
mg-N/L = miligram nitrogen per liter ft = feet
< = concentration not detected at or above the reporting limit.
* - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L, Appendix 1, April, 1, 2013.
Note 1: Hexavalent Chromium concentration is less than EPA screening value for tapwater (0.035 ug/L). See
Table 10-3 (USEPA Regional Screening Levels [RSLs] rev., June 26, 2015)
P:\Duke Energy Progress. 1026\103. Cape Fear Ash Basin GW Assessment\1.11 CSA Reporting\Tables\Table 12-1 Ash Pore Water Risk Screening.xlsx Page 2 of 2