NC0038377_Table H-1_20150902

July 2015
SynTerra
TABLE H-1. SUMMARY OF PERCENT NONDETECTS, TREATMENT TYPE, AND
DATA DISTRIBUTION
MAYO
Well Number
Detected Parameter
Percent
Nondetected
Treatment of
Nondetects
Distribution
Background Well
BG-1
Aluminum
0
*
Normal
BG-1
Barium
0
*
Non Normal
BG-1
Chloride
0
*
Normal
BG-1
Iron
0
*
Non Normal
BG-1
Manganese
0
*
Non Normal
BG-1
Nitrate
11
Replace with 1/2 PQL
Normal
BG-1
Sulfate
56
None Required
Not Applicable
BG-1
Zinc
22
Replace with 1/2 PQL
Lognormal
BG-1
Total Dissolved Solids
0
*
Non Normal
BG-2
Aluminum
7
Replace with 1/2 PQL
Lognormal
BG-2
Barium
0
*
Normal
BG-2
Chloride
0
*
Normal
BG-2
Iron
0
*
Lognormal
BG-2
Manganese
0
*
Normal
BG-2
Mercury
57
None Required
Not Applicable
BG-2
Sulfate
0
*
Normal
BG-2
Zinc
57
None Required
Not Applicable
BG-2
Total Dissolved Solids
0
*
Normal
Compliance Wells
CW-1
Aluminum
29
Replace with 1/2 PQL
Lognormal
CW-1
Barium
71
None Required
Not Applicable
CW-1
Cadmium
36
Replace with 1/2 PQL
Lognormal
CW-1
Chloride
0
*
Normal
CW-1
Iron
14
Replace with 1/2 PQL
Lognormal
CW-1
Manganese
0
*
Lognormal
CW-1
Nitrate
0
*
Non Normal
CW-1
Sulfate
7
None Required
Non Normal
CW-1
Zinc
21
Replace with 1/2 PQL
Normal
CW-1
Total Dissolved Solids
0
*
Normal
CW-1D
Aluminum
43
Replace with 1/2 PQL
Lognormal
CW-1D
Chloride
0
*
Normal
CW-1D
Iron
36
Replace with 1/2 PQL
Lognormal
CW-11)
Manganese
29
Replace with 1/2 PQL
Lognormal
CW-1D
Nitrate
14
Replace with 1/2 PQL
Normal
CW-1D
Sulfate
29
Replace with 1/2 PQL
Normal
CW-ID
Total Dissolved Solids
7
None Required
Non Normal
CW-2
Aluminum
43
Replace with 1/2 PQL
Lognormal
CW-2
Barium
0
*
Normal
CW-2
Boron
0
*
Normal
CW-2
Chloride
0
*
Normal
CW-2
Iron
50
Replace with 1/2 PQL
Lognormal
CW-2
Manganese
0
*
Lognormal
CW-2
Sulfate
0
*
Normal
CW-2
Total Dissolved Solids
0
*
Normal
P: \ Duke Energy Progress.1026 \ 105. Mayo Ash Basin GW Assessment Plan \ 1.11 CSA Reporting \ Appendices \ Table 1 Phase
II %ND&DistApril20l5.xls 1 of 2

July 2015
SynTerra
TABLE H-1. SUMMARY OF PERCENT NONDETECTS, TREATMENT TYPE, AND
DATA DISTRIBUTION
MAYO
Well Number
Detected Parameter
Percent
Nondetected
Treatment of
Nondetects
Distribution
Compliance Wells cont.
CW-2D
Aluminum
0
*
Lognormal
CW-2D
Barium
0
*
Normal
CW-2D
Boron
0
*
Normal
CW-2D
Chloride
0
*
Normal
CW-2D
Iron
0
*
Normal
CW-2D
Manganese
0
*
Normal
CW-2D
Sulfate
0
*
Normal
CW-2D
Zinc
14
Replace with 1/2 PQL
Normal
CW-2D
Total Dissolved Solids
0
*
Normal
CW-3
Aluminum
29
Replace with 1/2 PQL
Lognormal
CW-3
Barium
0
*
Lognormal
CW-3
Chloride
0
*
Normal
CW-3
Iron
7
Replace with 1/2 PQL
Lognormal
CW 3
Manganese
0
*
Normal
CW-3
Nitrate
21
None Required
Non Normal
CW-3
Sulfate
0
*
Normal
CW-3
Total Dissolved Solids
0
*
Normal
CW-4
Aluminum
7
Replace with 1/2 PQL
Lognormal
CW-4
Barium
0
*
Normal
CW-4
Chloride
0
*
Normal
CW-4
Iron
0
*
Lognormal
CW-4
Nitrate
14
Replace with 1/2 PQL
Normal
CW-4
Sulfate
0
*
Normal
CW-4
Total Dissolved Solids
0
*
Lognormal
CW-5
Aluminum
43
None Required
Non Normal
CW-5
Barium
0
*
Normal
CW-5
Chloride
0
*
Normal
CW-5
Iron
0
*
Normal
CW-5
Manganese
0
*
Normal
CW-5
Sulfate
29
Replace with 1/2 PQL
Normal
CW-5
Total Dissolved Solids
7
None Required
Non Normal
CW-6
Aluminum
36
Replace with 1/2 PQL
Lognormal
CW-6
Barium
0
*
Normal
CW-6
Chloride
0
*
Lognormal
CW-6
Iron
0
*
Normal
CW 6
Manganese
0
*
Normal
CW-6
Selenium
93
Replace with 1/2 PQL
Non Normal
CW-6
Sulfate
0
*
Normal
CW-6
Total Dissolved Solids
0
*
Normal
NOTES: Prepared by: MCM Checked by: KLS
Only constituents detected above the PQL in compliance wells during the April 2015 monitoring event were analyzed.
PQL Practical quantitation limit
* Data set does not contain any nondetects
None Required Percentage of nondetects greater than or equal to 50 % and less than 90 % or datasetis
non -normally distributed
Replace with 1/2 PQL Percentage of nondetects less than or equal to 50 % and the data distribution is normal or lognormal or
percentage of nondetects is greater than or equal to 90 %
Not Applicable Data set will be statistically analyzed using nonparametric methods because the % of
nondetects is greater than 50 % and less than 90 %
P: \ Duke Energy Progress.1026 \ 105. Mayo Ash Basin GW Assessment Plan \ 1.11 CSA Reporting \ Appendices \ Table 1 Phase
II %ND&DistApril20l5.xls 2 of 2