NC0004961_RBSS_SARP_Rev0_Appx B_20161219

Amec Foster Wheeler Environment & Infrastructure, Inc. December 2016
Duke Energy Coal Combustion Residuals Management Program
Riverbend Steam Station Site Analysis and Removal Plan
Revision 0
APPENDIX B: TABLES AND SELECT FIGURES FROM
COMPREHENSIVE SITE ASSESSMENT REPORT (HDR,
2015a) AND CORRECTIVE ACTION PLAN - PART 1 &
PART 2 (HDR, 2015b and HDR, 2016)



7DEOHV





Table 1-1. Comparison of Sampling Data to Federal and State Regulatory Standards
Sample
Media
Regulatory Criteria Administrative Code/
Regulatory Citation
Ash NC Industrial and Protection of Groundwater
PSRGs NCDENR Division of Waste Management*
Soil NC Industrial and Protection of Groundwater
PSRGs NCDENR Division of Waste Management
Partially
Weathered
Rock/Bedrock
NC Industrial and Protection of Groundwater
PSRGs NCDENR Division of Waste Management
Groundwater NC Groundwater Quality Standards and IMAC** 15A NCAC 02L .0202
Porewater NC Groundwater Quality Standards 15A NCAC 02L .0202
Seeps NC Groundwater Quality Standards 15A NCAC 02L .0202
Surface Water NC Surface Water and Wetland Standards 15A NCAC 02B .0202
Notes:

*Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to The
Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued
in 2010 and 2011, however NCDENR has not established a 2L standard for these constituents as described in 15A
NCAC 02L.0202(c). For this reason, IMACs noted in this report are for reference only.
** Preliminary health-based soil remediation goals (PSRGs) have been adapted from the January 2015 USEPA
Regional Screening Tables (RSL.)

Table 2-1. NPDES Groundwater Monitoring Requirements
Well
Nomenclature
Constituents and Parameters Frequency
Monitoring Wells:
MW -7SR, MW-7D,
MW-8S, MW-8I,
MW-8D, *MW-9,
*MW-10, MW-
11SR, MW -11DR,
*MW-13, MW-14,
MW-15
Antimony Chromium Nickel Thallium February, June,
October Arsenic Copper Nitrate Water Level
Barium Iron pH Zinc
Boron Lead Selenium
Cadmium Manganese Sulfate
Chloride Mercury TDS
Note: Monitoring wells marked with * are located inside of the compliance boundary.

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52

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5.
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– 6
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No

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74

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3

– 6
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5

No

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No

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34
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62

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67

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No

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59

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No

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No

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7,
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36
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56

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3

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.
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.

Table 2-3. Summary of Onsite Environmental Incidents
NCDENR
Incident #
Year
Reported
Location
of Incident
Impacted Media Brief Description Status
3704 1988 At retired
combustion
turbine
units
Soil/
Groundwater
Release of #2 fuel oil
from underground
piping associated with
combustion turbine
system

Approximately 1,400
gallons of free product
recovered. Free
product recovery no
longer occurs
Semi-annual
groundwater
monitoring with plans
to excavate soils
following combustion
turbine demolition in
2015

Most wells are now
closed per NCDENR
approval
3736 1988 Along fuel
oil piping
route to
former
combustion
turbine
units
Soil Fuel oil, no estimate of
release
Closed in 1997
3875 1995 At 4.25M
gallon AST
Soil Fuel oil from
underground pipe to
AST; Contaminated
soil was removed
No documented
closure but no work
ongoing; AST to be
demolished in 2015
Note:
1. Information regarding onsite environmental incidents provided by Duke Energy.

Table 3-1. Range (10th percentile – 90th percentile) in Bulk Composition of Fly Ash,
Bottom Ash, Rock, and Soil (Source: EPRI 2009a)

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Table 4-2. Property Owner Addresses Contiguous to the Ash Basin Waste Boundary
Map ID
#
Parcel ID # Property Address
Street City State
1 4519520433 Horseshoe Bend Rd Mount Holly NC
2 4519429301 Horseshoe Bend Rd Mount Holly NC
3 4519730111 Horseshoe Bend Rd Mount Holly NC
4 4519542126 175 Steam Plant Rd Mount Holly NC
Notes:
1. Property owner addresses obtained from the Gaston County, NC GIS website.
2. Map ID #s correspond to Figure 4-6.
Table 6-1. Soil Mineralogy Results
Boring ID Lab Performing
Analysis
Unique
Lab
Identifier
Sample
Depth (ft
bgs)
Soil Mineralogical Composition (wt %)
Quartz Feldspars Illite Kaolinite Chlorite Biotite Calcite Gibbsite Mullite Amphibole Muscovite Smectite Magesioferrite Illite/ Total
Smectite
AS-2S American Assay RB-01 90 35.1 22.7 - 35.6 - 6.7 - - - - - - - - 100.1
C-2S American Assay RB-02 30.0-35.0 54.2 4.3 - 34.4 - 7.4 - - - - - - - - 100.3
AB-7S American Assay RB-03 20.0-25.0 66.8 - - 13 9.7 3.2 - 1.5 6.1 - - - - - 100.3
AB-8S American Assay RB-04 30.0-35.0 22.1 2.7 - 40.5 13 - - - - 21.2 - - 0.7 - 100.2
GWA-2S American Assay RB-05 48.0-52.0 14.8 18.8 3.5 13.8 - - 0.2 - - 32.9 - 16 - - 100
GWA-5S American Assay RB-06 72.0-74.0 45 9.5 16.9 28.6 - - - - - - - - - - 100
GWA-7S American Assay RB-07 22.0-23.0 14.1 2.5 15.3 39.4 - - - - - 23.8 - - 0.6 4.3 100
GWA-3S American Assay RB-08 26.0-29.0 11 40.1 39.5 8.5 - - - - - 0.8 - - - - 99.8
GWA-9BR American Assay RB-09 14.0-17.0 13.1 0.7 11.9 59 - - - - - - 14.9 - 0.7 - 100.3
AB-6D American Assay RB-10 88.5-90.0 38.1 - 7 47.4 0.4 - - - - - 7 - - - 99.9
MW-9BR American Assay RB-11 10.0-12.0 9.3 - 32.1 29.6 1.6 - - - - - 27.1 - - - 99.7
AB-2D American Assay RB-15 83.5-85.0 - - - - - - - - - - - - - - -
AB-1D American Assay RB-16 78.5-80.0 - - - - - - - - - - - - - - -
GWA-4S American Assay RB-17 32.0-35.0 - - - - - - - - - - - - - - -
GWA-10S American Assay RB-18 21.0-23.0 - - - - - - - - - - - - - - -
GWA-8D American Assay RB-19 19.0-20.0 - - - - - - - - - - - - - - -
AB-1D American Assay RB-20 75.0-78.0 - - - - - - - - - - - - - - -
Notes:
1. Further results will be available in forthcoming supplemental report.
2. Chemical composition of constituent minerals is as follows: Quartz – SiO2, Feldspar – (K,Na)[AlSi3O8]-Ca[Al2Si2O8], Illite – K1-1.5Al4[Si7-6.5Al1-1.5O20](OH)4, Kaolinite – Al4[Si4O10](OH)8, Chlorite – (Mg,Al,Fe)12[(Si,Al)8O20](OH)16, Biotite – K2(Mg,Fe+2)6-4(Fe+3,Al,Ti)0-2[Si6-
5Al2-3O20](OH,F)4, Calcite – CaCO3, Gibbsite – Al(OH)3, Mullite – 3Al2O3•2SiO2, Muscovite – K2Al4[Si6Al2O20](OH,F)4, Smectite – (½Ca,Na)0.7(Al,Mg,Fe)4[(Si,Al)8O20](OH)4•nH2O, Magnesioferrite – MgFe2+3O4
Table 6-2. Soil Chemistry Results, Oxides
Boring ID Lab Performing
Analysis
Unique
Lab
Identifier
Sample Depth
(ft bgs)
Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %)
Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 LOI C S
AS-2S American Assay RB-01 90.0 24.45 0.05 0.67 <0.01 3.53 0.77 1.21 0.05 0.49 0.02 65.69 <0.01 0.57 <0.01 10.56 0.297 <0.005
C-2S American Assay RB-02 30.0-35.0 2.77 0.04 0.50 <0.01 6.30 0.33 0.67 0.04 0.15 0.02 71.15 <0.01 0.79 0.05 11.67 0.582 0.028
AB-7S American Assay RB-03 20.0-25.0 3.21 0.06 0.70 0.01 5.92 0.56 0.61 0.03 0.12 0.18 77.80 0.05 0.99 0.09 7.43 1.809 0.032
AB-8S American Assay RB-04 30.0-35.0 9.34 0.03 2.70 0.04 14.60 0.07 1.81 0.12 0.13 0.02 65.53 0.01 0.88 0.08 10.14 0.092 0.010
GWA-2S American Assay RB-05 48.0-52.0 20.87 0.06 4.90 <0.01 10.44 0.58 3.15 0.10 0.48 0.09 53.88 0.02 0.91 0.06 7.78 0.120 <0.005
GWA-5S American Assay RB-06 72.0-74.0 28.07 0.07 0.32 <0.01 5.59 0.20 0.43 0.08 0.03 0.04 59.54 <0.01 0.56 0.01 12.00 0.084 <0.005
GWA-7S American Assay RB-07 22.0-23.0 26.94 0.06 2.08 0.01 9.95 0.11 2.63 0.12 0.08 0.14 45.76 0.01 0.40 0.04 10.89 0.071 <0.005
GWA-3S American Assay RB-08 26.0-29.0 19.64 0.05 3.58 0.01 6.05 1.44 2.40 0.08 1.54 0.14 59.54 0.06 0.48 0.02 3.16 0.164 <0.005
GWA-9BR American Assay RB-09 14.0-17.0 24.20 0.03 0.56 0.02 12.30 0.47 0.91 0.10 0.18 0.14 51.17 <0.01 0.70 0.04 11.11 0.381 <0.005
AB-6D American Assay RB-10 88.5-90.0 24.38 0.08 0.34 <0.01 11.03 0.39 0.48 0.05 0.06 0.15 53.88 <0.01 0.76 0.04 10.57 0.126 <0.005
MW-9BR American Assay RB-11 10.0-12.0 26.41 0.05 0.37 0.01 8.32 0.54 0.49 0.03 0.15 0.11 53.14 <0.01 0.75 0.02 10.57 0.132 0.014
AB-2D American Assay RB-15 83.5-85.0 - - - - - - - - - - - - - - - - -
AB-1D American Assay RB-16 78.5-80.0 - - - - - - - - - - - - - - - - -
GWA-4S American Assay RB-17 32.0-35.0 - - - - - - - - - - - - - - - - -
GWA-10S American Assay RB-18 21.0-23.0 - - - - - - - - - - - - - - - - -
GWA-8D American Assay RB-19 19.0-20.0 - - - - - - - - - - - - - - - - -
AB-1D American Assay RB-20 75.0-78.0 - - - - - - - - - - - - - - - - -
Notes:
1. Further results will be available in forthcoming supplemental report.
Table 6-3. Soil Chemistry Results, Elemental
Boring ID Unique
Lab
Identifier
Lab Performing
Analysis
Sample Depth
(ft bgs)
Elemental Composition (ppm)
As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr
AS-2S RB-01 American Assay 90.0 8 0.5 54 14 22 19 23 <1 18 15 5 8 <1 5 111 84
C-2S RB-02 American Assay 30.0-35.0 46 <0.2 72 19 42 34 35 3 17 22 2 <1 <1 4 55 7
AB-7S RB-03 American Assay 20.0-25.0 96 0.5 129 43 85 33 53 9 53 39 4 <1 3 4 81 122
AB-8S RB-04 American Assay 30.0-35.0 57 0.2 20 48 131 23 13 <1 76 8 4 <1 <1 <1 60 27
GWA-2S RB-05 American Assay 48.0-52.0 4 <0.2 26 36 239 14 11 <1 27 7 2 <1 1 <1 79 4
GWA-5S RB-06 American Assay 72.0-74.0 4 <0.2 53 32 38 29 16 <1 20 9 1 <1 <1 <1 30 2
GWA-7S RB-07 American Assay 22.0-23.0 4 <0.2 21 37 127 18 7 7 72 8 <1 <1 <1 <1 70 12
GWA-3S RB-08 American Assay 26.0-29.0 2 <0.2 57 18 34 17 24 17 48 6 <1 <1 1 1 65 10
GWA-9BR RB-09 American Assay 14.0-17.0 5 <0.2 53 40 100 20 20 6 72 12 <1 <1 1 <1 83 29
AB-6D RB-10 American Assay 88.5-90.0 6 <0.2 69 22 77 25 22 2 25 16 1 <1 2 2 75 34
MW-9BR RB-11 American Assay 10.0-12.0 3 <0.2 66 18 33 21 26 5 88 15 <1 <1 1 1 67 25
AB-2D RB-15 American Assay 83.5-85.0 - - - - - - - - - - - - - - - -
AB-1D RB-16 American Assay 78.5-80.0 - - - - - - - - - - - - - - - -
GWA-4S RB-17 American Assay 32.0-35.0 - - - - - - - - - - - - - - - -
GWA-10S RB-18 American Assay 21.0-23.0 - - - - - - - - - - - - - - - -
GWA-8D RB-19 American Assay 19.0-20.0 - - - - - - - - - - - - - - - -
AB-1D RB-20 American Assay 75.0-78.0 - - - - - - - - - - - - - - - -
Notes:
1. Further results will be available in forthcoming supplemental report.
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Chlorite Smectite Total
AS
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e
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e
r

t
o

A
p
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n
d
i
x

H

f
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a
n
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p
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d
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.

2.

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h
e
m
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c
a
l

c
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n

o
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a
l
s

i
s

a
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f
o
l
l
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w
s
:

Q
u
a
r
t
z

– S
i
O
2 ,
F
e
l
d
s
p
a
r

– (
K
,
N
a
)
[
A
l
S
i
3 O 8 ]-
C
a
[
A
l
2 Si
2 O 8 ],

M
u
s
c
o
v
i
t
e

– K
2 Al 4 [Si 6 Al 2 O 20 ](OH,F)4 , Illite
– K
1-
1
.
5
Al
4 [S
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7-
6
.
5
Al
1-
1
.
5
O 20
](
O
H
)
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r
m
i
c
u
l
i
t
e

– (
M
g
,
C
a
)
0.
7
(M
g
,
F
e
+3
,A
l
)
6 [(
A
l
,
S
i
)
8 O 20
](
O
H
)
4 •8
H
2 O,

K
a
o
l
i
n
i
t
e

– A
l
4 [S
i
4 O 10
](
O
H
)
8 ,
C
h
l
o
r
i
t
e

–
(M
g
,
A
l
,
F
e
)
12
[(
S
i
,
A
l
)
8 O 20
](
O
H
)
16
,
S
m
e
c
t
i
t
e

– (
½
C
a
,
N
a
)
0.
7
(A
l
,
M
g
,
F
e
)
4 [(
S
i
,
A
l
)
8 O 20
](
O
H
)
4 •n
H
2 O
Table 6-5. Chemical Composition of Transition Zone Samples
Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth
(ft bgs)
Chemical Composition (wt %)
Na2O MgO Al2O3 SiO2 P2O5 S K2O CaO TiO2 Fe2O3 Cr2O3
AS-1D Technology of Materials RB-12 161.0-163.0 4.9 1.1 17.2 68.5 <0.2 <0.1 1.4 3.3 0.3 3.4 <0.2
GWA-7D Technology of Materials RB-14 102.0-103.5 1.9 6.8 18.1 49.8 <0.2 <0.1 1.2 7.8 1.0 13.2 <0.2
GWA-7D Technology of Materials RB-21 177.7-179.1 3.8 4.0 21.8 54.2 <0.2 <0.1 1.5 6.5 0.4 7.6 <0.2
Notes:
1. Refer to Appendix H for analytical procedures.
Table 6-6. Whole Rock Chemistry Results, Oxides
Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 LOI C S
R-GWA-7BR-1 American Assay RB-22 125.9-126.1 21.62 0.02 11.88 0.02 8.62 0.29 6.69 0.10 1.37 0.08 52.65 0.11 0.50 0.08 0.52 0.104 0.036
R-GWA-9BR-1A American Assay RB-23 99.8-100.0 15.84 0.06 3.54 0.05 3.44 1.54 0.96 0.05 1.84 0.09 68.54 0.08 0.37 <0.01 0.84 0.123 0.025
R-AB-3BR-2 American Assay RB-24 188-188.3 18.58 0.02 9.67 0.02 9.21 0.65 5.61 0.11 1.46 0.11 55.45 0.11 0.66 0.06 1.67 0.116 0.225
R-GWA-9BR-1B American Assay RB-25 99.0-99.2 16.69 0.03 8.66 0.02 10.31 1.10 7.80 0.18 1.49 0.07 53.91 0.10 0.67 0.04 1.17 0.121 0.054
R-MW-9BR-1 American Assay RB-26 146.3-146.55 15.36 0.04 4.00 0.04 2.57 1.07 1.12 0.06 1.98 0.07 65.46 0.08 0.33 0.01 1.33 0.173 <0.005
R-AB-3BR-1 American Assay RB-27 184.9-185.1' 17.11 <0.01 13.49 0.05 9.75 0.06 7.88 0.13 1.13 0.14 49.55 0.12 0.60 0.06 3.80 0.427 0.377
R-MW-15BR-1 American Assay RB-28 44.3-44.5 15.24 0.08 4.04 0.05 4.72 1.21 1.53 0.08 1.66 0.08 72.14 0.09 0.32 <0.01 2.24 0.062 2.371
R-MW-7BR-1 American Assay RB-29 210.3-210.5 17.33 0.04 4.48 0.04 2.63 1.20 1.35 0.05 1.88 0.09 68.31 0.09 0.36 <0.01 1.57 0.255 0.025
1. ft bgs = feet below ground surface
2. Refer to Appendix H for laboratory reports
Boring ID Lab Performing
Analysis
Unique Lab
Identifier
Sample Depth (ft
bgs)
Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt %)
Page 1 of 1
Table 6-7. Whole Rock Chemistry Results, Elemental
As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr
R-GWA-7BR-1 American Assay RB-22 125.9-126.1 1 <0.2 3 32 91 17 6 1 27 9 2 <1 4 <1 142 7
R-GWA-9BR-1A American Assay RB-23 99.8-100.0 3 <0.2 49 6 17 14 18 2 9 14 2 <1 4 <1 78 11
R-AB-3BR-2 American Assay RB-24 188-188.3 1 <0.2 28 29 75 15 8 <1 19 9 3 <1 4 <1 71 6
R-GWA-9BR-1B American Assay RB-25 99.0-99.2 1 <0.2 22 32 53 13 7 <1 24 11 2 <1 3 <1 98 6
R-MW-9BR-1 American Assay RB-26 146.3-146.55 2 <0.2 26 6 7 15 12 <1 8 10 2 <1 3 <1 84 2
R-AB-3BR-1 American Assay RB-27 184.9-185.1 2 <0.2 7 43 111 15 6 1 89 9414<1639
R-MW-15BR-1 American Assay RB-28 44.3-44.5 2 <0.2 18 21 58 14 9 19 12 8 2 <1 4 <1 88 3
R-MW-7BR-1 American Assay RB-29 210.3-210.5 4 <0.2 29 9 6 16 8 1 9 8 2 <1 1 <1 41 2
1. ft bgs = feet below ground surface
2. Refer to Appendix H for laboratory reports
Boring ID Lab Performing
Analysis
Unique Lab
Identifier
Sample Depth
(ft bgs)
Elemental Composition (ppm)
Page 1 of 1
Table 6-7. Whole Rock Chemistry Results, Elemental
As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn
R-GWA-7BR-1 American Assay RB-22 125.9-126.1 1 <0.2 3 32 91 17 6 1 27 9 2 <1 4 <1 142
R-GWA-9BR-1A American Assay RB-23 99.8-100.0 3 <0.2 49 6 17 14 18 2 9 14 2 <1 4 <1 78
R-AB-3BR-2 American Assay RB-24 188-188.3 1 <0.2 28 29 75 15 8 <1 19 9 3 <1 4 <1 71
R-GWA-9BR-1B American Assay RB-25 99.0-99.2 1 <0.2 22 32 53 13 7 <1 24 11 2 <1 3 <1 98
R-MW-9BR-1 American Assay RB-26 146.3-146.55 2 <0.2 26 6 7 15 12 <1 8 10 2 <1 3 <1 84
R-AB-3BR-1 American Assay RB-27 184.9-185.1 2 <0.2 7 43 111 15 6 1 89 9 4 1 4 <1 63
R-MW-15BR-1 American Assay RB-28 44.3-44.5 2 <0.2 18 21 58 14 9 19 12 8 2 <1 4 <1 88
R-MW-7BR-1 American Assay RB-29 210.3-210.5 4 <0.2 29 9 6 16 8 1982<11<141
1. ft bgs = feet below ground surface
2. Refer to Appendix H for laboratory reports
Boring ID Lab Performing
Analysis
Unique Lab
Identifier
Sample Depth
(ft bgs)
Elemental Composition (ppm)
Page 1 of 2
Table 6-7. Whole Rock Chemistry Results, Elemental
Zr
7
11
6
6
2
9
3
2
Page 2 of 2
Table 6-8. Compliance and Voluntary Monitoring Well Construction Information
Elevation of
Water Level
Land Surface
Elevation
Top of Well
Casing
Elevation
Bottom of Well
Elevation
(ft) (ft) (ft)(ft bgs)
MW-1D Deep 675.00 677.00 621 - 613 54.00 - 62.00 613.00 Downgradient - Ash Basin
MW-1S Shallow 675.00 677.00 670.00 - 660.00 5.00 - 15.00 660.00 Downgradient - Ash Basin
MW-2D Deep 720.00 722.00 637 - 632 83.00 - 88.00 632.00 Downgradient - Ash Basin
MW-2S Shallow 720.00 722.00 705.00 - 695.00 15.00 - 25.00 695.00 Downgradient - Ash Basin
MW-3D Deep 655.00 657.00 625.5 - 620.5 29.50 - 34.50 617.50 Downgradient - Ash Basin
MW-3S Shallow 655.00 657.00 651.00 - 641.00 4.00 - 14.00 641.00 Downgradient - Ash Basin
MW-4D Deep 655.00 657.00 600 - 595 55.00 - 60.00 595.00 Downgradient - Ash Basin
MW-4S Shallow 655.00 657.00 645.00 - 635.00 10.00 - 20.00 635.00 Downgradient - Ash Basin
MW-5D Deep 650.00 652.00 576 - 571 74.00 - 79.00 570.00 Downgradient - Ash Basin
MW-5S Shallow 650.00 652.00 645.00 - 635.00 5.00 - 15.00 635.00 Downgradient - Ash Basin
MW-6D Deep 650.00 652.00 580.5 - 575.5 69.50 - 74.50 575.50 Downgradient - Ash Basin
MW-6S Shallow 650.00 652.00 645.00 - 635.00 5.00 - 15.00 635.00 Downgradient - Ash Basin
MW-7D Deep 765.00 767.00 727 - 717 38.00 - 48.00 717.00 Background Well
MW-7S Shallow 765.00 767.00 670 - 665 95.00 - 100.00 665.00 Background Well
MW-7SR Shallow NA NA - 43 - 63 Background Well
MW-8S Shallow 752.4 755.4 717.4 - 697.4 35 - 55 697.94 Upgradient -
MW-8I Shallow 751.74 754.74 653.74 - 633.74 98 - 118 634.49 Upgradient -
MW-8D Deep 753.03 756.03 597.03 - 587.03 156 - 166 587.95 Upgradient -
MW-9 Shallow 648.84 651.84 635.84 - 620.84 13 - 28 620.93 Downgradient - Ash Basin
MW-10 Shallow 651.37 654.37 648.37 - 633.37 3 - 18 634 Downgradient - Ash Basin
MW-11SR Shallow 690.3 693.3 675.3 - 660.3 15 - 30 660 Downgradient - Ash Basin
MW-11DR Deep 690.18 693.18 655.18 - 650.18 35 - 40 650.56 Downgradient - Ash Basin
MW-13 Shallow 651.11 654.11 648.11 - 633.11 3 - 18 633.81 Downgradient - Ash Basin
M-14 Shallow 659.84 662.84 656.84 - 641.84 3 - 18 642.95 Downgradient - Ash Basin
MW-15 Shallow 655.12 657.12 652.12 - 637.12 3 - 18 635.33 Downgradient - Ash Basin
Upgradient / Downgradient
Compliance
Voluntary
Screened Interval
(ft below bgs)
Monitoring Well
Type
Monitoring Well
ID Number
Date Water Level
was Obtained
Screened Interval Elevation
(ft)
Page 1 of 1
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Upgradient / Downgradient
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E
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(f
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)
Page 1 of 2
Table 6-9. 2015 Groundwater Assessment Monitoring Well Construction Information
Elevation of
Water Level
Land Surface
Elevation
Top of Well
Casing
Elevation
Bottom of Well
Elevation
(ft)(ft)(ft)(ft bgs)
Upgradient / DowngradientScreened Interval
(ft below bgs)
Monitoring Well
Type
Monitoring Well
ID Number
Date Water Level
was Obtained
Screened Interval Elevation
(ft)
GWA-4BR Bedrock NA NA 695.89 692.93 536.89 -531.89 159.00 -164.00 518.50 Downgradient
GWA-4D Deep 7/10/2015 22.43 696.56 693.68 576.56 -571.56 120.00 -125.00 567.42 Upgradient
GWA-4S Shallow 7/10/2015 21.95 696.35 693.4 679.35 -664.35 17.00 -32.00 657.09 Upgradient
GWA-5D Deep NA NA 787.63 784.44 575.63 -570.63 212.00 -217.00 547.44 Upgradient
GWA-5S Shallow 7/9/2015 74.57 787.95 784.85 727.95 -712.95 60.00 -75.00 708.85 Upgradient
GWA-6D Deep 7/9/2015 52.28 770.06 767.03 627.06 -622.06 143.00 -148.00 576.00 Upgradient
GWA-6S Shallow 7/9/2015 52.18 770.49 767.62 725.49 -710.49 45.00 -60.00 706.63 Upgradient
GWA-7BR Bedrock 7/9/2015 14.00 688.23 684.98 561.23 -556.23 127.00 -132.00 511.07 Downgradient
GWA-7D Deep 7/9/2015 15.06 689.15 685.89 589.15 -584.15 100.00 -105.00 556.39 Downgradient
GWA-7S Shallow 7/9/2015 16.00 689.24 686.07 684.24 -669.24 5.00 -20.00 663.07 Downgradient
GWA-8D Deep 7/8/2015 14.58 689.00 685.65 578.00 -573.00 111.00 -116.00 564.09 Downgradient
GWA-8S Shallow 7/8/2015 14.66 689.24 686.01 681.24 -666.24 8.00 -23.00 661.82 Downgradient
GWA-9BR Bedrock 7/8/2015 110.15 654.26 651.49 548.26 -543.26 106.00 -111.00 531.33 Downgradient
GWA-9D Deep 7/8/2015 -1.69 654.69 652.08 592.69 -587.69 62.00 -67.00 579.79 Downgradient
GWA-9S Shallow 7/8/2015 3.41 654.46 651.64 649.46 -639.46 5.00 -15.00 634.56 Downgradient
GWA-10BRU Deep 7/8/2015 10.62 657.57 654.51 524.07 -519.07 133.50 -138.50 507.81 Downgradient
GWA-10S Shallow 7/8/2015 11.75 658.71 655.58 651.21 -636.21 7.50 -22.50 632.27 Downgradient
GWA-20BR Bedrock NA NA 738.35 738.76 437.75 -432.75 300.60 -305.60 427.20 Upgradient
GWA-20D Deep NA NA 737.25 737.61 484.25 -479.25 253.00 -258.00 478.79 Upgradient
GWA-20S Shallow NA NA 739.05 739.52 702.05 -686.05 37.00 -53.00 682.38 Upgradient
GWA-21D Deep NA NA NA 773.07 TBD -TBD 274.00 -279.00 NA Upgradient
GWA-21S Shallow NA NA NA 773.02 TBD -TBD 57.00 -72.00 NA Upgradient
GWA-22BR-A Bedrock NA NA 763.78 760.71 494.78 -489.78 269.00 -274.00 459.35 Upgradient
GWA-22D Deep 7/9/2015 49.90 761.94 758.7 563.94 -558.94 198.00 -203.00 545.32 Upgradient
GWA-22S Shallow 7/9/2015 46.18 762.51 759.46 722.51 -707.51 40.00 -55.00 701.04 Upgradient
GWA-23BR Bedrock 7/9/2015 40.36 746.23 743.58 461.23 -456.23 285.00 -290.00 440.73 Upgradient
GWA-23D Deep 7/9/2015 38.35 745.94 743.2 524.94 -519.94 221.00 -226.00 516.07 Upgradient
GWA-23S Shallow 7/9/2015 37.51 745.91 743.44 712.91 -697.91 33.00 -48.00 693.35 Upgradient
MW-7BR Bedrock 7/9/2015 50.94 765.80 762.66 569.80 -564.80 196.00 -201.00 522.49 Upgradient
MW-9BR Bedrock 7/8/2015 0.07 651.64 648.75 504.64 -499.64 147.00 -152.00 452.44 Downgradient
MW-9D Deep 7/8/2015 0.58 651.48 648.5 550.48 -545.48 101.00 -106.00 525.49 Downgradient
MW-15BR Bedrock 7/8/2015 9.42 656.53 653.25 600.53 -595.53 56.00 -61.00 591.25 Downgradient
MW-15D Deep 7/8/2015 9.67 656.69 653.39 617.69 -612.69 39.00 -44.00 599.39 Downgradient
OB-1 Observation 7/9/2015 38.29 749.02 746.02 716.02 -701.02 33.00 -48.00 696.02 Sidegradient
OB-2 Observation 7/9/2015 44.12 723.10 720.11 684.10 -669.10 39.00 -54.00 664.11 Sidegradient
Page 2 of 2
Page 1 of 1
Table 6-10. Summary of Hydraulic Gradient Calculations
Well Pair
Groundwater Elevation –
Upgradient Well
Groundwater Elevation –
Down-gradient Well
Flow Path
Length
Horizontal
Hydraulic Gradient
(h2) (h1) (dl) (i)
Regolith (S wells)
MW -8S / MW-9 709.81’ 647.78’ 1936’ 0.032
AB-4S / MW-
11SR 706.00’ 664.71’ 1584’ 0.026
AB-3S / GWA-
9S 706.31’ 648.23’ 1364’ 0.043
MW-7SR / BG-
3S 712.01’ 644.93’ 2596’ 0.026
Average Horizontal Hydraulic Gradient 0.032
Transition Zone (D wells)
MW-8D / MW-
9D 705.53’ 647.92’ 1936’ 0.03
AB-4D / MW-
11DR 702.99’ 664.62’ 1584’ 0.024
AB-3D / GWA-
9D 700.26’ 653.77’ 1364’ 0.034
MW -7D / BG-3D 712.02’ 644.86’ 2596’ 0.026
Average Horizontal Hydraulic Gradient 0.028
Fractured Bedrock (BR wells)
GWA-23BR /
MW-9BR 703.22’ 648.68’ 1936’ 0.028
GWA-23BR /
AB-3BR 703.22’ 583.75’ 3300’ 0.036
GWA-2BR /
GWA-9BR 645.22’ 541.34’ 3168’ 0.033
Average Horizontal Hydraulic Gradient 0.032

Page 1 of 1
Table 7-1. Solid Matrix TI & TOC Parameters and Analytical Methods
INORGANIC COMPOUNDS UNITS METHOD
Antimony mg/kg EPA 6020
Arsenic mg/kg EPA 6020
Barium mg/kg EPA 6010
Boron mg/kg EPA 6010
Cadmium mg/kg EPA 6020
Chloride mg/kg SM4500-Cl-E
Chromium mg/kg EPA 6010
Copper mg/kg EPA 6010
Iron mg/kg EPA 6010
Lead mg/kg EPA 6020
Manganese mg/kg EPA 6010
Mercury mg/kg EPA Method 7470A/7471
Nickel mg/kg EPA 6010
pH SU EPA 9045
Selenium mg/kg EPA 6020
Thallium (low level) mg/kg EPA 6020
Zinc mg/kg EPA 6010
Notes:
1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using
USEPA Method 9045, as noted above.
2. Ash samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using
USEPA Method 9045; select ash samples will also be analyzed for leaching potential using
SPLP Extraction Method 1312 in conjunction with USEPA Methods 6010/6020. SPLP results to
be reported in units of mg/L for comparison to 2L Standards.
3. Samples to be analyzed for Total Organic Carbon using method EPA 9060. Sample result in
concentration units of mg/kg of organic carbon on a dry weight basis.
Total Organic Carbon UNITS METHOD
TOC Mg/kg EPA 9060
Table 7-2. Ash Sample Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-96-5
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
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800 5200
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270 65
Sample Name Sample Date
AB-3D(38.5-40) 4/14/2015 7390 7.1 U 35.6 295 17.2 J 1.4 0.85 U 11.4 4.5 J 28.7 9710 8.2 62.5
AB-4D(43.5-45) 5/4/2015 3370 8.2 U 20.9 129 20.5 U 0.66 0.98 U 4.8 8.2 U 18.9 3390 8.2 U 19.7
AB-5D(3.5-5) 4/6/2015 2900 7.3 U 14.2 180 18.2 U 0.83 0.87 U 4.2 3.8 J 18.7 6130 7.3 U 38.5
AB-5D(28.5-30) 4/7/2015 8420 6.9 U 55.4 301 20.3 2.7 J- 0.83 U 12.8 J-8.2 J 49.5 J-13500 12.9 J 64.5 J-
AB-5D(48.5-50) 4/7/2015 8780 7 U 40 349 21.3 2.5 0.84 U 12.2 8.4 33.9 19100 8.4 98.1
AB-7D(3.5-5) 3/18/2015 5390 4.2 U 26.7 232 8.7 2.5 0.4 J 8.4 8.3 38.7 6790 10.3 32.9
AB-7D(8.5-10) 3/18/2015 10100 2 J-68.3 310 24.7 3.6 0.44 J 15.5 11.8 J+67.6 8240 23.7 88.5
AS-1D-1 (3.5-5) 3/2/2015 9000 3.2 U 69.2 302 29.7 4.2 0.3 J 14 11.4 72.1 9290 19.1 63.4
AS-1D-2 (33.5-35) 3/2/2015 5510 3.8 U 31.9 228 20.8 2.6 0.45 U 7.1 J+8.4 36.4 5240 11.5 30.8
AS-1D-3 (73.5-75) 3/2/2015 5420 3.7 U 33 270 23 2.3 0.44 UJ 8.1 J+7.5 34.7 9690 10 74.2
AS-2D-1 (3-4.5) 3/2/2015 6400 3.5 U 40.6 220 21.6 3 0.33 J 10 J+9.6 48.5 6010 15.3 37.4
AS-2D-5 (18.5-20) 3/4/2015 8830 3.6 U 62.7 493 33.8 4 0.37 J 11.6 J+11.2 62.3 6270 J+21.2 54.1 J+
AS-2S (18.5-20) 3/5/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA
AS-3D 3.5-5' 3/2/2015 12500 2.2 J 101 403 32.5 5.8 0.49 16.5 13.3 104 8340 28 58.1
AS-3D 33.5-35' 3/10/2015 6840 3.4 U 61.2 308 24.9 2.8 0.41 U 10.1 9 46 6820 12.7 48.9
AS-3D 43.5-45' 3/10/2015 7280 3.2 U 67.2 310 32.4 3.5 0.26 J 11.4 9.9 62.8 8360 16.1 62.3
C-1D(3.5-5.0) 3/24/2015 2550 3.9 U 34.9 132 3.9 U 0.44 0.47 U 4.4 3.9 U 31.3 18100 8.7 25.2 J
C-1D(8.5-10.0) 3/24/2015 2170 3.4 U 47.8 126 3.4 U 0.23 0.41 U 4.6 3.4 U 19 20400 14.4 29
C-2D(3.5-5) 3/16/2015 4760 3 U 27.6 117 3 U 0.58 0.36 U 36.4 4.2 67.9 19600 12.2 103
C-2D(8.5-10) 3/16/2015 6160 3 U 10.3 84.5 11.6 0.38 0.36 U 9 J+3.7 37.3 J-14300 8.5 79.1
NA - Not analyzed or not reported by analytical laboratory
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Page 1 of 3
Table 7-2. Ash Sample Results
Sample Name Sample Date
AB-3D(38.5-40) 4/14/2015
AB-4D(43.5-45) 5/4/2015
AB-5D(3.5-5) 4/6/2015
AB-5D(28.5-30) 4/7/2015
AB-5D(48.5-50) 4/7/2015
AB-7D(3.5-5) 3/18/2015
AB-7D(8.5-10) 3/18/2015
AS-1D-1 (3.5-5) 3/2/2015
AS-1D-2 (33.5-35) 3/2/2015
AS-1D-3 (73.5-75) 3/2/2015
AS-2D-1 (3-4.5) 3/2/2015
AS-2D-5 (18.5-20) 3/4/2015
AS-2S (18.5-20) 3/5/2015
AS-3D 3.5-5' 3/2/2015
AS-3D 33.5-35' 3/10/2015
AS-3D 43.5-45' 3/10/2015
C-1D(3.5-5.0) 3/24/2015
C-1D(8.5-10.0) 3/24/2015
C-2D(3.5-5) 3/16/2015
C-2D(8.5-10) 3/16/2015
NA - Not analyzed or not reported by analytical labo
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium Nitrate Nitrogen
7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7727-37-9
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
8 1200 4400 1200 100000 2.4 1200 70000 NS NS NS 100000 NS
1 NS 130 2.1 NS 0.28 6 1200 NS NS NS NS NS
0.066 3.5 U 8.9 7.1 U 123 7.1 U 39.7 11 1780 363 U 662 NA 36.3 UJ
0.066 4.1 U 4.5 8.2 U 62.8 8.2 U 9.9 4.3 J 1390 389 U 378 NA 38.9 UJ
0.017 3.6 U 8 7.3 U 72.7 7.3 U 15.3 8.6 J+ 1170 348 U 287 NA 34.8 UJ
0.02 2.4 J 16.7 6.9 U 226 6.9 U 46.4 22.7 2860 J- 340 U 760 NA 34 UJ
0.11 1.9 J 14 7 U 244 7 U 39 13.6 5360 NA 1030 NA 34 UJ
0.021 2.2 13.3 4.2 U 175 4.2 U 40.9 22.2 1870 422 U 475 NA 42.2 UJ
0.026 1.7 17.2 3.8 UJ 173 3.8 UJ 77.8 30.8 2080 NA 840 NA 37.2 UJ
0.023 2.1 J+ 17 2.5 J 261 3.2 U 67.7 24 2450 313 U 714 NA 31.3 UJ
0.037 1.7 J+ 13.2 2.9 J 162 3.8 U 44.4 15 1900 375 U 556 NA 37.5 UJ
0.029 1.7 J+ 13.5 2.5 J 150 3.7 U 37.9 14.1 2140 NA 593 NA 36.6 UJ
0.028 2.8 J+ 14.8 2.9 J 163 3.5 U 54.1 21.2 1660 341 U 517 NA 34.1 UJ
0.02 1.6 J+ 16.7 3 J 340 3.6 U 84.2 24.4 J+ 3630 NA 936 NA 35 UJ
NA NA NA NA NA NA NA NA NA NA NA NA NA
0.0066 J 3.1 J 25 2.9 J 371 3.4 U 95.7 41.9 3310 334 U 1000 NA 33.4 UJ
0.027 2.2 13.5 3.2 J 255 3.4 U 52.1 16.7 2600 329 U 770 NA 32.9 UJ
0.016 2.2 14.9 3.1 J 231 3.2 U 56.5 20.9 NA NA NA NA 31 UJ
0.12 1.1 1.6 J 2.7 J 50.3 3.9 U 10.6 6.1 289 393 U 232 NA 39.3 UJ
0.12 1.5 1.2 3 J 39.4 3.4 U 13.3 6.7 153 NA 385 NA 35.2 UJ
0.17 3.1 42.8 3.4 52.4 3 U 15.9 22.1 1530 291 U 1410 NA 29.1 UJ
0.065 1 12.6 J+ 3 UJ 34.9 J- 3 U 21.1 14.6 1250 J- NA 1250 J- NA 30.3 UJ
Page 2 of 3
Table 7-2. Ash Sample Results
Sample Name Sample Date
AB-3D(38.5-40) 4/14/2015
AB-4D(43.5-45) 5/4/2015
AB-5D(3.5-5) 4/6/2015
AB-5D(28.5-30) 4/7/2015
AB-5D(48.5-50) 4/7/2015
AB-7D(3.5-5) 3/18/2015
AB-7D(8.5-10) 3/18/2015
AS-1D-1 (3.5-5) 3/2/2015
AS-1D-2 (33.5-35) 3/2/2015
AS-1D-3 (73.5-75) 3/2/2015
AS-2D-1 (3-4.5) 3/2/2015
AS-2D-5 (18.5-20) 3/4/2015
AS-2S (18.5-20) 3/5/2015
AS-3D 3.5-5' 3/2/2015
AS-3D 33.5-35' 3/10/2015
AS-3D 43.5-45' 3/10/2015
C-1D(3.5-5.0) 3/24/2015
C-1D(8.5-10.0) 3/24/2015
C-2D(3.5-5) 3/16/2015
C-2D(8.5-10) 3/16/2015
NA - Not analyzed or not reported by analytical labo
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg Std. Units mg/kg
NS NS NS NS NS
NS NS NS NS NS
1090 355 U 363 U 7.5 J 70800
574 409 U 389 U 6.5 J 140000 J-
479 363 U 348 U 7.3 J 120000
1260 J+ 346 U 340 U 6.8 J 13000
1070 349 U NA 9.5 J 25600
821 170 422 U 6.2 J 125000
1690 276 NA 5.9 J 40600
1490 244 J+ 313 U 6.5 J 55100
924 176 J+ 375 U 7.9 J 86000
898 209 J+ NA 8 J 81300
981 190 J+ 341 U 7.2 J NA
1310 259 NA 7.9 J NA
NA NA NA NA 47200
1890 429 334 U 6.6 J 53900
1030 194 329 U 7.2 J 164000
NA NA NA 7.8 J 84100
1010 159 393 U 3.9 J 197000
1090 142 NA 3.6 J 127000
967 147 183 J 5 J 177000
774 93 NA 5.3 J 95500
Page 3 of 3
Page 1 of 2

Table 7-3. Aqueous Matrix Parameters and Constituent Analytical Methods
Parameter RL Units Method
Field Parameters
pH NA SU Field Water Quality Meter
Specific Conductance NA mmho/cm Field Water Quality Meter
Temperature NA ºC Field Water Quality Meter
Dissolved Oxygen NA mg/L Field Water Quality Meter
Oxidation Reduction Potential NA mV Field Water Quality Meter
Turbidity NA NTU Field Water Quality Meter
Ferrous Iron NA mg/L Field Test Kit
Inorganics
Aluminum 5 μg/L EPA 200.7 or 6010C
Antimony 1 μg/L EPA 200.8 or 6020A
Arsenic 1 μg/L EPA 200.8 or 6020A
Barium 5 μg/L EPA 200.7 or 6010C
Beryllium 1 μg/L EPA 200.8 or 6020A
Boron 50 μg/L EPA 200.7 or 6010C
Cadmium 1 μg/L EPA 200.8 or 6020A
Chromium 1 μg/L EPA 200.7 or 6010C
Cobalt 1 μg/L EPA 200.8 or 6020A
Copper 0.005 mg/L EPA 200.7 or 6010C
Iron 10 μg/L EPA 200.7 or 6010C
Lead 1 μg/L EPA 200.8 or 6020A
Manganese 5 μg/L EPA 200.7 or 6010C
Mercury (low level) 0.012 μg/L EPA 245.7 or 1631
Molybdenum 5 μg/L EPA 200.7 or 6010C
Nickel 5 μg/L EPA 200.7 or 6010C
Selenium 1 μg/L EPA 200.8 or 6020A
Strontium 5 μg/L EPA 200.7 or 6010C
Thallium (low level) 0.2 μg/L EPA 200.8 or 6020A
Vanadium (low level) 0.3 mg/L EPA 200.8 or 6020A
Zinc 5 μg/L EPA 200.7 or 6010C
Anions/Cations
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
Magnesium 0.005 mg/L EPA 200.7
Methane 0.1 mg/L RSK 175
Nitrate as Nitrogen 0.023 mg-N/L EPA 300.0 or 9056A
Potassium 0.1 mg/L EPA 200.7
Page 2 of 2

Parameter RL Units Method
Sodium 0.05 mg/L EPA 200.7
Sulfate 0.1 mg/L EPA 300.0 or 9056A
Sulfide (as H2S)4 0.05 mg/L SM4500S-D
Total Dissolved Solids 25 mg/L SM 2540C
Total Organic Carbon 0.1 mg/L SM 5310
Total Suspended Solids 2 mg/L SM 2450D
Additional Groundwater Constituents
Iron Speciation (Fe(II), Fe(III) Vendor Specific μg/L IC-ICP-CRC-MS
Manganese Speciation (Mn(II), Mn(IV) Vendor Specific μg/L IC-ICP-CRC-MS
Notes:
1. Select constituents will be analyzed for total and dissolved concentrations.
2. RL is the laboratory analytical method reporting limit.
3. NA indicates not applicable.
4. Following wells to be sampled for Total Combined Radium: MW-13 and BG-1S/D
5. Sulfide (as H2S) will be analyzed for groundwater samples only.
6. All EPA methods and RLs are at or below the respective 2L or 2B Standard for constituents with standards.
Table 7-4. Ash Basin Surface Water Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron Cadmium
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 7440-43-9
DTDTDTDTDTDTD
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
87 87 5.6 5.6 10 10 1000 1000 6.5 6.5 NS NS 0.15
NS NS NS NS 10 10 700 700 NS NS 700 700 2
NS NS 1 1 NS NS NS NS 4 4 NS NS NS
Sample Name Sample Date
SW-1 6/8/2015 62.2 43900 3.5 7.3 23.7 229 600 820 0.075 J 17.6 420 430 0.024 U
SW-2 6/8/2015 51.7 93.1 2.4 2.6 33 37.2 120 130 0.067 U 0.067 U 390 410 0.043 J
General Notes:
ug/l - micrograms per
liter
NA - Not analyzed or not reported by analytical laboratory
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for reference
only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
Page1of5
Table 7-4. Ash Basin Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
SW-1 6/8/2015 62.2
SW-2 6/8/2015 51.7
General Notes:
ug/l - micrograms per
liter
NA - Not analyzed or not reported by analytical laboratory
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for reference
only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead Manganese
7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5
TDTDTDTDTDTD
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
0.15 24 24 3 3 2.7 2.7 NS NS 0.54 0.54 NS
2 10 10 NS NS 1000 1000 300 300 15 15 50
NS NS NS 1 1 NS NS NS NS NS NS NS
2 0.56 47.6 0.91 56.5 0.44 J+315 13.7 U 19100 0.046 U 107 130
0.055 J 0.18 J 0.5 0.13 U 0.16 J 2.4 J+ 1.4 J+ 13.7 U 29.9 J 0.19 J+ 0.048 J 2.5 U
Page2of5
Table 7-4. Ash Basin Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
SW-1 6/8/2015 62.2
SW-2 6/8/2015 51.7
General Notes:
ug/l - micrograms per
liter
NA - Not analyzed or not reported by analytical laboratory
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for reference
only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium Thallium
7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0
TDTDTDTDTDTD
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS NS 160 160 16 16 NS NS 14000 14000 0.24
50 1 1 NS NS 100 100 20 20 NS NS NS
NS NS NS NS NS NS NS NS NS NS NS 0.2
140 0.001 U 0.0072 58.3 55.1 4.2 103 1.1 5 470 790 0.3
3.3 J 0.001 U 0.001 U 53.5 60.3 4.4 5 0.96 1.1 410 440 0.81
Page3of5
Table 7-4. Ash Basin Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
SW-1 6/8/2015 62.2
SW-2 6/8/2015 51.7
General Notes:
ug/l - micrograms per
liter
NA - Not analyzed or not reported by analytical laboratory
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for reference
only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium Methane
7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 74-82-8
TDTDTNNNTNTN
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
0.24 NS NS 36 36 NS NS NS NS 230000 NS NS
NS NS NS 1000 1000 NS NS NS NS 250000 NS NS
0.20.30.3NSNSNSNSNSNSNSNSNS
5.4 17.2 275 7.6 J 150 12000 10000 U 12000 18900 5400 3720 98
0.94 6.7 7.8 2.5 U 42 J+12000 10000 U 12000 16300 5400 3350 10 U
Page4of5
Table 7-4. Ash Basin Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
SW-1 6/8/2015 62.2
SW-2 6/8/2015 51.7
General Notes:
ug/l - micrograms per
liter
NA - Not analyzed or not reported by analytical laboratory
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for reference
only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS
NTTNNNNN
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS NS 250000 NS NS NS NS
NS NS NS 250000 NS NS 500000 NS
NS NS NS NS NS NS NS NS
10 U 5440 4590 J 54100 100 U 1200 99000 J- 57000000 J-
10 U 4940 J 4780 J 55200 100 U 1200 99000 J- 3300 J-
Page5of5
Table 7-5. Ash Basin Porewater Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron Boron Beryllium Beryllium
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8 7440-42-8 7440-41-7 7440-41-7
DTDTDTDTDTDT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS NS NS 10 10 700 700 700 700 NS NS
NS NS 1 1 NS NS NS NS NS NS 4 4
Sample Name Sample Date
AB-3S 7/2/2015 140 2600 0.28 J 0.58 258 283 190 220 420 410 0.086 J 0.16 J
AB-3S 7/7/2015 260 1200 1.8 1.7 0.78 0.93 53 59 430 410 0.2 U 0.073 J
AB-4S 6/28/2015 710 790 0.5 U 2.2 0.5 U 428 94 98 520 500 0.2 U 0.2 U
AB-5S 6/20/2015 140 1600 23.8 21.6 644 651 250 310 1400 1400 0.2 U 0.34
AB-5SL 6/8/2015 4830 6370 2.9 3.2 69.7 75.1 120 140 2100 2400 0.2 U 0.086 J
AB-7S 6/22/2015 100 U 190 0.5 U 0.5 U 23.4 24.3 68 72 320 320 0.2 U 0.2 U
C-1S 6/17/2015 770 1200 0.5 U 0.5 U 25.5 25.8 48 51 310 300 0.42 0.4
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
IMAC*
NS - No applicable standard for this parameterg
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs) April 2013*NOTE: The IMAC value is shown where there is no applicable
02L standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
Page1of5
Table 7-5. Ash Basin Porewater Sample Results
Sample Name Sample Date
AB-3S 7/2/2015
AB-3S 7/7/2015
AB-4S 6/28/2015
AB-5S 6/20/2015
AB-5SL 6/8/2015
AB-7S 6/22/2015
C-1S 6/17/2015
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
IMAC*
NS - No applicable standard for this parameterg
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs) April 2013*NOTE: The IMAC value is shown where there is no applicable
02L standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead
7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1
DTDTDTDTDTDT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
2 2 10 10 NS NS 1000 1000 300 300 15 15
NS NS NS NS 1 1 NS NS NS NS NS NS
0.08 U 0.025 J 2.4 J 4.3 1.3 1.9 3.5 J+ 7 2400 6500 0.88 1.7
0.025 J 0.029 J 2 J+ 3.6 0.35 J 0.72 1.8 8.2 30 J 990 0.075 J 0.42 J+
0.08 U 0.041 J 0.18 J+ 0.56 J+ 0.5 U 5.7 0.75 J+ 0.23 J+ 50 U 32 J 0.1 U 0.1 U
0.079 J 0.1 0.21 J+ 1.8 J+ 0.2 J 1 3.2 5.5 50 U 660 0.24 1.7
0.08 U 0.071 J 0.25 J+ 0.99 J+ 0.5 U 0.25 J 1 U 1.5 J+ 50 U 240 0.1 U 0.4
0.08 U 0.034 J 0.37 J+ 0.84 J+13.7 13.4 2.2 J+ 0.92 J 11000 11200 0.16 0.29
0.08 U 0.08 U 1.6 4 115 102 1 U 2.2 176000 175000 0.1 U 0.25
Page2of5
Table 7-5. Ash Basin Porewater Sample Results
Sample Name Sample Date
AB-3S 7/2/2015
AB-3S 7/7/2015
AB-4S 6/28/2015
AB-5S 6/20/2015
AB-5SL 6/8/2015
AB-7S 6/22/2015
C-1S 6/17/2015
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
IMAC*
NS - No applicable standard for this parameterg
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs) April 2013*NOTE: The IMAC value is shown where there is no applicable
02L standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium
7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6
DTDTDTDTDTDT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
50 50 1 1 NS NS 100 100 20 20 NS NS
NS NS NS NS NS NS NS NS NS NS NS NS
860 910 0.2 U 0.2 U 32.5 28.8 1.4 J+ 2.2 0.5 U 0.5 U 890 940
720 730 0.2 U 0.2 U 4.8 4.6 0.31 J 0.87 2.1 2 550 560
1200 1200 0.2 U 0.2 U 0.5 U 46.5 0.24 J+ 0.74 J+ 0.5 U 0.84 680 700
39 48 0.2 UJ 0.077 J+ 269 263 0.97 2.4 1.2 1.3 2300 2700
4.3 J 6.7 0.2 U 0.2 U 594 586 0.37 J 1.1 3.1 4 2400 2700
1300 1300 0.2 U 0.076 J+ 0.74 0.75 1.2 1.4 J+ 0.5 U 0.5 U 330 340
3400 3200 0.2 U 0.14 J+ 0.5 U 0.5 U 33.5 30.8 0.47 J 0.66 1400 1400
Page3of5
Table 7-5. Ash Basin Porewater Sample Results
Sample Name Sample Date
AB-3S 7/2/2015
AB-3S 7/7/2015
AB-4S 6/28/2015
AB-5S 6/20/2015
AB-5SL 6/8/2015
AB-7S 6/22/2015
C-1S 6/17/2015
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
IMAC*
NS - No applicable standard for this parameterg
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs) April 2013*NOTE: The IMAC value is shown where there is no applicable
02L standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium
7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4
DTDTDTNNNTNT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS NS NS 1000 1000 NS NS NS NS 250000 NS
0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS
0.056 J 0.075 J 6 11.3 10 U 8.9 J+ 52600 5000 U 52600 26000 7000 6380
0.06 J 0.064 J 3.9 4.9 17 21 254000 5000 U 254000 42200 12900 1940
0.1 U 0.19 1 U 166 10 U 10 U 69600 5000 U 69600 35300 6000 6230
0.36 0.48 200 231 10 U 4.8 J+ 201000 5000 U 201000 79700 11500 16900
0.1 U 0.042 J 130 151 10 U 10 U 40000 18000 60000 89900 7900 677
0.23 NA 1 U 1.1 3 J 5.3 J 24100 5000 U 24100 13300 2100 4250
0.03 J 0.062 J 2.7 4 82 91 11000 5000 U 11000 54600 9400 23500
Page4of5
Table 7-5. Ash Basin Porewater Sample Results
Sample Name Sample Date
AB-3S 7/2/2015
AB-3S 7/7/2015
AB-4S 6/28/2015
AB-5S 6/20/2015
AB-5SL 6/8/2015
AB-7S 6/22/2015
C-1S 6/17/2015
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
IMAC*
NS - No applicable standard for this parameterg
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs) April 2013*NOTE: The IMAC value is shown where there is no applicable
02L standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
Methane Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS
NNTTNNNNN
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS NS NS 250000 NS NS 500000 NS
NS NS NS NS NS NS NS NS NS
268 18 J 5140 6870 48000 100 U 780 J 174000 35000
0.66 J+ 60 4060 J 144000 99300 100 U 1600 519000 49800
13 J+ 20 U 20500 19500 88900 J+ 100 U 740 J 234000 7700
10 UJ 20 U 14100 11400 99600 100 U 710 J 381000 180000
3000 20 U 20800 9560 208000 100 U 660 J 420000 J- 140000 J-
84.7 J 19 J+ 4540 J 9040 64800 100 U 680 J 140000 2500 U
262 J 20 U 23600 21900 559000 500 U 3900 1110000 12600
Page5of5
Table 7-6. Porewater Speciation Results
Arsenate Arsenic Arsenite As(III) As(V) Chromium Chromium (VI) Chromium (VI) Fe(II) Fe(III) Ferrous Iron Iron
ARSENATE 7440-38-2 ARSENITE 7784-46-5 10103-60-3 7440-47-3 18540-29-9 18540-29-9 1345-25-1 1309-37-1 15438-31-0 7439-89-6
TTTTTTDTTTTT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
Sample Name Sample Date
Porewater
AB-3S 7/2/2015 NA NA NA 270 19.9 NA NA 0.05 U 2160 311 NA NA
AB-5S 6/25/2015 NA NA NA 44.9 611 J+ NA NA 0.026 20 U 20 U NA NA
AB-5SL 6/25/2015 NA NA NA 23.7 46.2 J+ NA NA 0.05 U 50.8 J- 20 U NA NA
AB-7S 6/24/2015 NA NA NA 17.4 3.81 NA NA 0.05 U 9570 1340 NA NA
Seeps
RBSW001 7/9/2015 0.5 U 0.5 U 0.453 J+ NA NA 1.09 J+ NA NA NA NA 30 UJ 90.3 J
RBSW001 7/15/2015 NA NA NA NA NA NA 0.02 U NA NA NA NA NA
RBSW002 7/9/2015 0.2 J+ 0.466 J 0.266 J+ NA NA 0.918 J+ NA NA NA NA 20 J- 145
RBSW002 7/15/2015 NA NA NA NA NA NA 0.46 NA NA NA NA NA
S-5 6/25/2015 NA NA NA 0.2 U 0.2 U NA NA 0.121 29 J- 20 U NA NA
Ash Basin Surface Water
SW-1 6/25/2015 NA NA NA 0.945 34.5 J+ NA NA 0.099 20 U 20 U NA NA
SW-2 6/25/2015 NA NA NA 0.692 34.5 J+ NA NA 0.106 20 U 20 U NA NA
NA - Not analyzed or not reported by analytical laboratory
Analyte
CAS RN
Fraction
Result Unit
General Notes:
ug/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
NS - No applicable standard for this
J -- Estimated Concentration
J+ -- Estimated concentration, biased
J- --Estimated concentration, biased low.
shading + bold - indicates exceedance
North Carolina Department of
*NOTE: The IMAC value is shown where
Qualifier Notes:
U -- Not detected above the reporting
Page1of2
Table 7-6. Porewater Speciation Results
Sample Name Sample Date
Porewater
AB-3S 7/2/2015
AB-5S 6/25/2015
AB-5SL 6/25/2015
AB-7S 6/24/2015
Seeps
RBSW001 7/9/2015
RBSW001 7/15/2015
RBSW002 7/9/2015
RBSW002 7/15/2015
S-5 6/25/2015
Ash Basin Surface Water
SW-1 6/25/2015
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Analyte
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Fraction
Result Unit
General Notes:
ug/l - micrograms per liter
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Comparison Criteria:
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J -- Estimated Concentration
J+ -- Estimated concentration, biased
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shading + bold - indicates exceedance
North Carolina Department of
*NOTE: The IMAC value is shown where
Qualifier Notes:
U -- Not detected above the reporting
Manganese Manganese Mn(II) Mn(IV) Se(IV) Se(VI) Selenate Selenite
7439-96-5 7439-96-5 1344-43-0 1313-13-9 10102-18-8 13410-01-0 SELENATE SELENITE
DTTTTTTT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NA NA 981 1 U 0.5 U 0.5 U NA NA
NA NA 47.7 1 U 0.84 0.254 NA NA
NA NA 3.53 J+ 0.14 J+ 2.47 0.364 NA NA
NA NA 1600 22.2 0.5 U 0.5 U NA NA
18.5 20.8 NA NA NA NA 33 4.87 J+
NA NA NA NA NA NA NA NA
20.3 28.4 NA NA NA NA 16.2 3.1
NA NA NA NA NA NA NA NA
NA NA 2100 1920 0.5 U 0.5 U NA NA
NA NA 2.17 J+ 4.01 0.852 0.497 NA NA
NA NA 5 U 2.27 0.884 0.284 NA NA
Page2of2
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Table 7-7. Ash Sample SPLP Results
Page 2 of 3
Sample Name Sample Date
AB-4S(43.5-45)5/8/2015
AB-5D(48.5-50)4/7/2015
AB-7D(8.5-10)3/18/2015
AS-1D-3 (73.5-75)3/2/2015
AS-2D-5 (18.5-20)3/4/2015
AS-3D 43.5-45'3/10/2015
C-1D(8.5-10.0)3/24/2015
C-2D(8.5-10)3/16/2015
NA - Not analyzed or not reported by analytica
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where
there is no applicable 02L standard.
Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards
Applicable to the Groundwaters of North
Carolina, lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were
issued in 2010 and 2011, however NCDENR
has not established a 02L standard for these
constituents as described in 15A NCAC
02L.0202(c). For this reason, IMACs are
noted in this report for reference only.
Qualifier Notes: p g
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
T T T T T T T T T T N T
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
50 1 NS 100 20 NS NS NS 1000 NS 250000 NS
NS NS NS NS NS NS 0.2 0.3 NS NS NS NS
275 0.2 U 3.4 0.64 J+0.5 U 89.6 0.1 U 0.5 J 31 2250 5000 U 341 J+
10.7 J+0.2 U 8.8 1.2 J+38.7 287 0.1 U 55.4 175 J+14400 6800 U 220 J+
151 J+0.2 U 9.8 1.3 J+0.78 206 0.63 17.4 157 3940 J+37600 U 466 J+
53 0.6 U 11.5 J+23.5 J+3.2 368 J+1.2 112 44.2 J+7560 J+7300 U 1690 J+
23.9 J+0.2 U 10.5 J+0.5 U 3.5 489 0.1 U 80.1 J+5 U 14800 7200 U 6030 J+
5.8 J+0.2 U 29.2 0.5 U 3.2 238 0.1 U 52.4 9.6 5600 6200 U 909
63 0.2 U 0.5 U 2.6 0.5 U 50 0.1 U 1 U 156 844 7000 U 305
120 J+0.2 U 0.5 U 5.4 J+0.5 U 40.4 0.1 U 1 U 152 J+3140 30400 U 682
Table 7-7. Ash Sample SPLP Results
Page 3 of 3
Sample Name Sample Date
AB-4S(43.5-45)5/8/2015
AB-5D(48.5-50)4/7/2015
AB-7D(8.5-10)3/18/2015
AS-1D-3 (73.5-75)3/2/2015
AS-2D-5 (18.5-20)3/4/2015
AS-3D 43.5-45'3/10/2015
C-1D(8.5-10.0)3/24/2015
C-2D(8.5-10)3/16/2015
NA - Not analyzed or not reported by analytica
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where
there is no applicable 02L standard.
Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards
Applicable to the Groundwaters of North
Carolina, lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were
issued in 2010 and 2011, however NCDENR
has not established a 02L standard for these
constituents as described in 15A NCAC
02L.0202(c). For this reason, IMACs are
noted in this report for reference only.
Qualifier Notes: p g
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Nitrate Potassium Sodium Sulfate pH (field)
14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH
N T T N N
ug/l ug/l ug/l ug/l Std. Units
10000 NS NS 250000 6.5 - 8.5
NS NS NS NS NS
200 UJ 302 1300 6700 J+NA
270 UJ 520 J+328 J+23900 J+9.5 J
368000 J 1680 1490 J+23300 J+5.9 J
430 J 2800 J+5100 J+9300 8 J
410 J 889 J+4690 57200 7.9 J
29500 J 682 2830 8500 J+7.8 J
290 J 1900 1740 13300 J+3.6 J
325000 J 1860 1450 16700 J+5.3 J
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 1 of 6
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron Boron Beryllium
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8 7440-42-8 7440-41-7
D T D T D T D T D T D
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS 1 NS 10 10 700 700 700 700 NS
NS NS NS 1 NS NS NS NS NS NS 4
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015 100 U 130 0.5 U 0.5 U 0.19 J 0.3 J 16 17 50 U 50 U 0.2 U
Seeps
S-2 92257351001 7/6/2015 100 U 100 U 0.5 U 0.5 U 0.12 J 0.12 J 30 30 500 480 0.2 U
S-2 92257605002 7/7/2015 NA NA NA NA NA NA NA NA NA NA NA
S-5 92256216003 6/25/2015 100 U 330 0.5 U 0.5 U 0.5 U 0.3 J 32 69 480 490 0.2 U
S-9 92257220002 7/3/2015 NA NA 0.5 U 0.5 U 0.5 U 0.5 U 33 35 410 390 0.2 U
S-11 92257220003 7/3/2015 NA NA 0.5 U 0.5 U 0.5 U 0.21 J 27 30 420 400 0.2 U
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 2 of 6
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015
Seeps
S-2 92257351001 7/6/2015
S-2 92257605002 7/7/2015
S-5 92256216003 6/25/2015
S-9 92257220002 7/3/2015
S-11 92257220003 7/3/2015
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Beryllium Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron
7440-41-7 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6
T D T D T D T D T D T
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS 2 2 10 10 NS NS 1000 1000 300 300
4 NS NS NS NS 1 1 NS NS NS NS
0.2 U 0.08 U 0.08 U 0.28 J 0.41 J 0.5 U 0.24 J 0.95 J 0.92 J 230 1600
0.2 U 0.08 U 0.08 U 0.3 J 0.53 0.89 1.4 0.55 J 0.57 J 37 J 90
NA NA NA NA NA NA NA NA NA NA NA
0.2 U 0.08 U 0.08 U 0.4 J 1.8 12.4 46.1 0.53 J 0.73 J 50 U 4600
0.2 U 0.08 U 0.08 U 0.37 J 0.59 1.4 2 0.31 J 0.49 J NA NA
0.2 U 0.08 U 0.08 U 0.19 J 1.8 9.7 13 0.47 J 2.2 NA NA
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 3 of 6
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015
Seeps
S-2 92257351001 7/6/2015
S-2 92257605002 7/7/2015
S-5 92256216003 6/25/2015
S-9 92257220002 7/3/2015
S-11 92257220003 7/3/2015
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Lead Lead Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium
7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2
D T D T D T D T D T D
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
15 15 50 50 1 1 NS NS 100 100 20
NS NS NS NS NS NS NS NS NS NS NS
0.1 U 0.13 79 110 NA 0.000843 J+0.13 J 0.15 J 0.5 UJ 0.18 J 0.5 U
0.1 U 0.1 U 280 300 0.2 U 0.2 U 0.16 J 0.12 J 0.81 0.82 0.5 U
NA NA NA NA NA 0.000507 J+NA NA NA NA NA
0.1 U 0.52 1800 3100 0.2 U 0.2 U 0.11 J 0.5 U 3.6 7.1 0.5 U
0.1 U 0.094 J 210 210 NA 0.00414 0.5 U 0.5 U 1.1 1.2 0.5 U
0.1 U 0.51 2000 2000 NA 0.00887 0.5 U 0.1 J 0.69 1.4 0.5 U
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 4 of 6
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015
Seeps
S-2 92257351001 7/6/2015
S-2 92257605002 7/7/2015
S-5 92256216003 6/25/2015
S-9 92257220002 7/3/2015
S-11 92257220003 7/3/2015
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3
7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3
T D T D T D T D T N N
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
20 NS NS NS NS 0.3 NS 1000 1000 NS NS
NS NS NS 0.2 0.2 NS 0.3 NS NS NS NS
0.5 U 79 79 0.1 U 0.1 U 0.52 J 1.4 4.8 J 3 J 39600 5000 U
0.5 U 280 280 0.1 U 0.1 U 0.3 J 0.33 J 4.1 J 10 U 59200 5000 U
NA NA NA NA NA NA NA NA NA NA NA
0.5 U 43 52 0.1 U 0.021 J 1 U 1.8 10 U 6.5 J 10700 5000 U
0.5 U 36 36 0.1 U 0.1 U 0.38 J 0.48 J 10 U 10 U 23200 5000 U
0.5 U 32 29 0.1 U 0.025 J 0.39 J 3.2 7.4 J 2.8 J 13400 5000 U
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 5 of 6
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015
Seeps
S-2 92257351001 7/6/2015
S-2 92257605002 7/7/2015
S-5 92256216003 6/25/2015
S-9 92257220002 7/3/2015
S-11 92257220003 7/3/2015
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Alkalinity, lab Calcium Chloride Magnesium Methane Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide Total Organic
Carbon
ALK-LAB 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC
N T N T N N T T N N N
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS 250000 NS NS NS NS NS 250000 NS NS
NS NS NS NS NS NS NS NS NS NS NS
39600 8540 1200 2580 27.3 79 5000 U 6960 1000 U 100 U 2100
59200 43000 6800 7930 14.9 J+310 5180 5850 89300 100 U 680 J
NA NA NA NA NA NA NA NA NA NA NA
10700 6140 7300 7400 2.2 J+29 5000 U 7440 35100 100 U 2000
23200 7410 6500 6460 5.7 J+110 5000 U 7140 25600 100 U 5600
13400 4050 6800 2710 56.8 45 5000 U 7780 16500 100 U 1100
Table 7-8. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards
Page 6 of 6
Sample Name Sample ID Sample Date
Background Seeps
S-13 92257605001 7/7/2015
Seeps
S-2 92257351001 7/6/2015
S-2 92257605002 7/7/2015
S-5 92256216003 6/25/2015
S-9 92257220002 7/3/2015
S-11 92257220003 7/3/2015
General Notes:
ug/l - micrograms per liter
NA - Not analyzed or not reported by analytical laboratory
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC
Criteria.
North Carolina Department of Environment and Natural
Resources Division of Water Resources 02L Groundwater
Quality Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality Standards
Applicable to the Groundwaters of North Carolina , lists
Interim Maximum Allowable Concentrations (IMACs). The
IMACs were issued in 2010 and 2011, however NCDENR has
not established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this reason, IMACs
are noted in this report for reference only.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Total Dissolved
Solids
Total Suspended
Solids
TDS TSS
N N
ug/l ug/l
500000 NS
NS NS
83000 7000
195000 2500 U
NA NA
101000 5000 U
68000 5800
53000 30800
Table 7-9. Background Seep Sample Results
Page 1 of 3
Well ID Date Collected Time Collected Temp (°C)pH (s.u.)Specific Cond. (μS)Diss. Oxy (mg/L) ORP/Redox(mV) Turbidity (ntu)Notes
AB-1D 7/9/2015 1145 23.3 11.6 1367 1.1 -49.1 16.89
AB-1S 7/9/2015 1142 27.2 5.18 35.7 1.63 257.6 41.89
AB-2D 7/8/2015 1440 27.4 10.94 515 3.69 19 6.23
AB-2S 7/8/2015 1227 25.6 5.1 26.8 1.23 237.5 57.88
AB-3BR 7/22/2015 825 17.8 10.8 454 2.1 142.6 416.5
AB-3D 7/7/2015 1630 29.1 11.9 3092 0.7 -265.9 119.7
AB-3S 7/2/2015 1441 24.4 6.8 253.8 0.2 -62.4 105.6
AB-4D 6/28/2015 1357 21.26 11.53 458 3.39 -104.6 92 Stopped Sampling Needs Redevelopment
AB-4D 7/8/2015 1125 25.5 10.6 316.6 2.5 59.4 20.64
AB-4S 6/28/2015 1619 21 9.8 534 0.29 -112.6 6.52
AB-5D 6/20/2015 1235 20.68 10.91 430 0.8 -30.1 3.27
AB-5D 7/8/2015 1630 21.2 10.6 370.6 1.3 -72.9 17.16
AB-5S 6/25/2015 1240 22.58 8.36 602 0.25 69.2 7.45
AB-5S 6/20/2015 1130 23.3 8.09 597 0.41 26.2 3.34
AB-5SL 6/25/2015 1440 21.87 10.73 652 0.22 -119.7 1.86
AB-6BRU 6/22/2015 1015 20.61 9.99 334 0.45 -53.6 3.25
AB-6BRU 7/2/2015 1615 23.4 9.7 368.7 0.6 -111.5 7.9
AB-6S 6/29/2015 1555 22.57 11.69 952 1.22 -50.7 163 Pump Issues (Not Sampled)
AB-6S 6/30/2015 1005 23.27 11.46 1279 0.47 -1.1 46.3
AB-6S 6/22/2015 1450 23.46 11.91 1100 0.17 -102.7 18.8
AB-6S 7/1/2015 1205 24.27 11.07 811 0.29 79.4 44.3
AB-7D 7/1/2015 1105 19.1 11.91 905 8.21 -38.9 8.25
AB-7I 7/7/2015 1508 29.9 5.83 40.4 2.39 217.1 20.01
AB-7S 6/22/2015 1200 19.69 5.4 222 0.23 53.4 3.57
AB-7S 6/24/2015 1350 21.14 5.72 227 0.23 85.4 3.84
AB-8S 6/20/2015 1025 24.83 5.68 372 1.16 222 9.83
AS-1D 7/1/2015 1545 22.4 11.85 1670 4.3 -44 2.56
AS-1D 6/5/2015 1525 35.2 11.4 1592 6.6 36.6 6.2
AS-1S 6/29/2015 1439 21.3 6.19 1050 0.22 191 3.71
AS-1S 7/1/2015 1143 22.2 6.11 980 0.37 286 7.7
AS-1S 6/5/2015 1700 31.6 6.4 1167 1.3 142.8 14.2
AS-2D 7/1/2015 1227 20.92 11.57 807 3.02 -88.8 9.27
AS-2S 7/1/2015 1443 19.98 5.25 114 0.22 169.1 4.3
AS-2S 6/30/2015 1642 20.1 5.06 59 5.09 216 1.75
AS-2S 6/5/2015 1310 28.1 5.3 100 0.5 172 12
AS-3D 6/29/2015 1610 22.33 11.87 265 4.69 -111.6 9.97
AS-3D 7/1/2015 1610 22.84 10.3 160 6.57 -21.1 28
AS-3D 6/5/2015 1300 23.9 10.3 222.9 6.2 40.2 10
AS-3S 7/7/2015 1530 32.1 6.98 717 1.65 57.9 48.37
BG-1S 7/6/2015 1100 21.2 5.75 33.3 5.45 288 13.71
BG-2BR 7/17/2015 820 19.1 8.2 180.2 2.1 180.8 7.38
BG-3D 7/6/2015 1040 18.4 7.1 115.7 4.2 179.1 123.6
BG-3S 6/30/2015 1310 18.19 6.15 79 6.4 161.3 1.93
Table 7-9. Background Seep Sample Results
Page 2 of 3
Well ID Date Collected Time Collected Temp (°C)pH (s.u.)Specific Cond. (μS)Diss. Oxy (mg/L) ORP/Redox(mV) Turbidity (ntu)Notes
C-1BRU 7/6/2015 - ------
Well went dry and did not recharge within 48 hrs.
Substances in well possibly affected the static
water level reading
C-1S 6/17/2015 1548 18.43 4.96 801 0.35 -25.2 3.14
C-2D 6/19/2015 1145 20.11 9.36 703 4.35 48.9 7.62
C-2D 6/25/2015 1246 21.07 8.63 279 3.61 -77.8 52
Reach Two Hour Limit at 1247
C-2S 6/19/2015 1455 20.54 4.16 220 2.43 479.9 6.4
C-2S 6/25/2015 1510 20.66 5.06 295 1.88 -46.1 8.15
Declared too turbid at 1511
GWA-10D 7/3/2015 748 19.7 10.92 519.3 1.89 183.8 7.75
GWA-10S 7/2/2015 1535 20.7 5.17 85.9 136 311 4.4
GWA-1D 7/2/2015 1315 18.8 11.22 504 0.33 -169.4 21.25
GWA-1S 7/2/2015 1355 20.8 6.07 78 3.03 237.5 47.36
GWA-20BR 7/27/2015 1230 18.9 11.9 2401 6 -45.8 8.62
GWA-20D 7/16/2015 1710 21.1 12.5 11175 4.9 74.2 8.95
GWA-20S 7/11/2015 1010 27.1 5.3 45.2 3.9 126.8 21.15
GWA-22BR 7/21/2015 835 21.1 11.4 1240 5 49.8 1.04
GWA-22D 7/10/2015 1400 21.3 11 411.1 8.5 60.3 71.72
GWA-22S 7/10/2015 1205 32.8 5.18 22 3.45 239.9 8.32
GWA-23BR 7/17/2015 1620 23.2 12.2 3584 3.8 -89.4 10.2
GWA-23D 7/16/2015 1150 21.7 11.2 452.3 6.4 31.7 4.15
GWA-23S 7/10/2015 1010 24.9 5.3 44.1 3.1 227.3 9.05
GWA-2S 6/22/2015 1355 22.12 5.83 188 1/1/1900 70.6 7.72
GWA-2BRU 7/8/2015 815 20.3 12.11 5030 5.22 -111.1 116.4
Date 7/8/2015 BTB 1:16pm
GWA-3SA 7/1/2015 1507 20.8 5.94 2263 0.25 -43.4 7.84
GWA-3D 6/17/2015 1337 20.55 7.42 1744 0.67 29.2 1.55
GWA-4BR 7/27/2015 1050 20.8 12.5 12552 3.2 -58.2 5.8
GWA-5D 7/11/2015 1140 19.2 10.3 215.6 8.6 81.3 2.01
GWA-5S 6/18/2015 943 18.6 3.56 184 5.98 4.2 1.92
GWA-6D 6/19/2015 1155 18.48 11.37 532 6.12 -102.5 3.98
GWA-6D 6/24/2015 1546 25.73 11.32 908 5.98 -103.7 8.81
GWA-6S 6/25/2015 905 21.87 6.25 83 6.38 127.6 85.2
Low Recharge
GWA-7D 6/17/2015 1043 16.54 8.03 231 2.67 23.8 3.9
GWA-7S 6/19/2015 1450 19.88 4.99 61 5.58 -111.8 3.12
GWA-8D 6/28/2015 1445 20.1 7.21 166 0.12 38.7 5.23
GWA-8S 6/28/2015 1108 20.72 5.03 122 1.59 242.3 1.86
GWA-9BR 7/9/2015 1325 20.2 11.54 1622 7.33 129.1 137.3
GWA-9S 6/30/2015 1007 19.19 4.82 94 0.75 264.3 7.93
MW-10 6/29/2015 1557 16.81 5.47 112 1.18 158.4 7.18
MW-10 6/23/2015 1435 21.57 4.57 108 1.22 -12.3 4.88
MW-11DR 7/2/2015 1515 21.6 5.9 156.9 1.1 114.8 8.8
MW-11SR 7/2/2015 1200 20.3 5.8 161.5 1.6 117.3 8.1
MW-13 7/1/2015 925 16.5 6.88 170 0.26 -15.7 0.95
MW-14 7/1/2015 1305 17.98 7.19 181 1.5 58 1.97
MW-15 6/30/2015 1515 16.6 5.23 108 2.53 315.1 3.41
MW-15 6/23/2015 855 20.67 4.31 165 2.15 127.8 3.6
MW-15BR 6/23/2015 1040 18.63 11.21 555 2.23 -206 4.54
Table 7-9. Background Seep Sample Results
Page 3 of 3
Well ID Date Collected Time Collected Temp (°C)pH (s.u.)Specific Cond. (μS)Diss. Oxy (mg/L) ORP/Redox(mV) Turbidity (ntu)Notes
MW-1D 6/29/2015 1400 21.09 6.08 287 0.21 87.8 4.13
MW-1S 6/29/2015 1100 19.82 6.66 159 0.16 -92.6 6.82
MW-2D 6/30/2015 1500 19.34 6.35 93 0.55 9.6 5.36
MW-3D 6/30/2015 1305 18.83 6.73 182 0.1 114.9 2.8
MW-3S 6/30/2015 1415 17.61 6.04 169 4.06 150.2 5.06
MW-4D 6/18/2015 1428 15.94 4.59 88 0.61 85.5 4.52
MW-5D 6/18/2015 1211 17.64 6.34 257 0.81 46.7 1.82
MW-5S 6/26/2015 1615 17.87 5.93 100 1.99 -77.8 3.68
MW-6S 6/18/2015 1600 18.95 6.37 162 0.03 16 5.57
MW-8D 7/1/2015 1525 17.2 6.37 102 7.02 -45.3 84.3
Reach Two Hour Limit at 1526
MW-8I 7/1/2015 1135 17.18 5.68 68 7.39 -43.6 34.1
MW-8S 6/30/2015 1725 18.5 6.1 30 7.35 -83.1 8.45
MW-9 7/6/2015 1225 27.3 6.1 128.3 1.78 207.4 8.43
MW-9BR 7/2/2015 1345 19.2 11.4 728 4.6 -12 1.7
MW-9D 7/1/2015 1000 18.85 11.49 1037 2.16 18.9 7.06
MW-9D 7/2/2015 1230 22.1 11.4 921 2.8 -0.6 8.9
RBSW-001 7/9/2015 1430 31.2 9.1 40.3 5.4 143.4 15.95
RBSW-002 7/9/2015 1430 31.1 8 128.3 6 209.5 25.47
RBSW-003 7/9/2015 1430 - - - - - -
Dry, no water to sample
S-1 7/6/2015 - - - - - - -
Wooded area, no water flow, soil slightly saturated
S-10 7/3/2015 - - - - - - -
Dry
S-10 7/6/2015 - - - - - - -
Dry, but wanted soil samples taken
S-11 7/3/2015 1030 21.7 7.43 102.3 3.55 90 9.05
S-12 7/3/2015 - - - - - - -
Dry
S-12 7/6/2015 - - - - - - -
Dry, but wanted soil samples taken
S-13 7/7/2015 840 21.7 6.81 83.9 5.19 227.4 12.96
S-2 7/6/2015 830 22.9 6.93 394.3 5.27 190.9 0.8
Wooded dam with ABS/PVC pipe through middle,
nice flow
S-3 7/3/2015 - - - - - - -
Dry
S-3 7/6/2015 - - - - - - -
Dry trench, no water flow, covered in leaves, very
dry
S-4 7/3/2015 845 20.9 8.05 147.3 5.26 81.5 7.29
S-5 7/7/2015 - - - - - - -
Wooded area, small amount of water running
through wooded dam/pvc pipe
S-7 7/3/2015 1235 19.2 7.62 72.7 5.17 233.9 5.63
S-8 7/3/2015 1320 22.5 7.42 96.5 5.17 240.6 14.63
S-9 7/3/2015 1000 21 7.34 142.1 4.59 200.7 6.68
Table 7-. North Carolina Department of Environment and Natural Resources (NCDENR) Identified Seeps - Exceedances of Appropriate Water Quality Standards Riverbend Steam Station
NCDENR Regional
Office Table Sample ID
Division of Water
Resources Lab
Number
Latitude (°) Longitude (°)
Appropriate Water
Quality Standard Temp. (°C) pH (SU)
Dissolved
Oxygen
(mg/L)
Dissolved
Oxygen (%
Saturation)
Specific
Conductance
(μԼԼ/cm)
Turbidity
(NTU)
ORP
(mV)
Flow
(gpm)
Aluminum
(μg/L)
Antimony
(μg/L)
Arsenic
(μg/L)
Barium
(μg/L)
Boron
(μg/L)
Bromide
(mg/L)
GW - 2L NE 6.5-8.5 NE NE NE NE NE NE NE 1 10 700 700 NE
SW - 2B (Class WS) NE 6.0-9.0 > 6.0 NE NE NE NE NE 87 5.6 10 1000 NE NE
RBWW002 AC06052 35.3672322 -80.95943115 SW 8.8 6.1 12.1 107 168 100 < 10 4 150 300 N/A < 0.5 16 5.8
RBSP001 AC06044 35.36543027 -80.96638781 SW 13.2 6.9 8.8 86 215 N/A N/A N/A 180 < 10 < 2.0 39 220 N/A
RBSP002 AC06045 35.37067271 -80.96274918 SW 12.1 6.7 8.9 85 121 N/A N/A N/A 110 < 10 < 2.0 44 340 N/A
RBSP003 AC06046 35.36796809 -80.95935079 SW 10.9 5.25 6 55 96.5 N/A N/A N/A 78 < 10 < 2.0 26 240 N/A
RBSW001 AC06047 35.36052816 -80.97510851 SW 13.1 7.2 10.7 101 60 N/A N/A N/A 57 < 10 < 2.0 19 < 50 N/A
RBSW002 AC06048 35.36062195 -80.97522544 SW 12.3 7.4 9.9 94 241 N/A N/A N/A < 50 < 10 < 2.0 55 59 N/A
RBSW003 AC06049 35.36065366 -80.97544711 SW 12.1 7.71 9.7 91 276.7 N/A N/A N/A < 50 < 10 < 2.0 54 < 50 N/A
RBSW010 AC06050 35.36040248 -80.97801872 SW 9.4 6.2 5.9 53 272 N/A N/A N/A 270 < 10 < 2.0 110 < 50 N/A
RBSW011 AC06051 35.36018427 -80.9789049 SW 9.4 6.3 3.9 35 188 N/A N/A N/A 190 < 10 < 2.0 45 < 50 N/A
Notes:
1. Results from North Carolina Division of Water Quality, NC Division of Water Resources, and
Pace Analytical Laboratory, Inc, from samples collected by NCDENR in March 2014
2. SW - 2B (Class WS) refers to the Class WS standards found in 15A NCAC 2B .0200 Surface
Water and Wetlands Standards last amended January 1st, 2015
3. NE indicates that a standard has not been established for that parameter
4. N/A means that the constituent was not analyzed at that seep
5. Highlighted cells signify an exceedance of a 2L or 2B standard; the color corresponds
with the relevant standard Laboratory, Inc, from samples collected by NCDENR in mid-March 2014
7. Temperature reported in degrees centigrade
8. pH reported in standard units (SU)
9.Լ indicates the unit "mho" the reciprocal of ohm
10. NTU indicates Nephalometric Turbidity Units
11. mV indicates millivolts
12. gpm signifies gallons per minute
13. GW - 2L refers to the Class GA standards found in 15A NCAC 02L .0202 Groundwater Quality Standards, last amended
April 1st, 2013
14. "<" indicates a sample less than the laboratory practical quantitation (PQL) limit
15. P indicates an elevated PQL due to matrix interference or dilution factor not equal to one
16. J2 indicates that the reported value is estimated as it did not meet relevant quality controls for precision or accuracy
17. J3 indicates that the reported value is estimated as the sample matrix interfered with accurate determination
18. Analytical results in this table provided to Duke Energy by NCDENR.
1 of 3
Table 8-1. Solid Matrix Parameters and Analytical Methods or Soil, Ash, and Rock
Parameters and Constituent Analysis - Analytical Methods
Inorganic Compounds Units Method
Antimony mg/kg EPA 6020
Arsenic mg/kg EPA 6020
Barium mg/kg EPA 6010
Boron mg/kg EPA 6010
Cadmium mg/kg EPA 6020
Chloride mg/kg SM4500-Cl-E
Chromium mg/kg EPA 6010
Copper mg/kg EPA 6010
Iron mg/kg EPA 6010
Lead mg/kg EPA 6020
Manganese mg/kg EPA 6010
Mercury mg/kg EPA Method 7470A/7471
Nickel mg/kg EPA 6010
pH SU EPA 9045
Selenium mg/kg EPA 6020
Thallium (low level) mg/kg EPA 6020
Zinc mg/kg EPA 6010

Notes:
1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA
Method 9045, as noted above.
2. Ash samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA
Method 9045; select ash samples will also be analyzed for leaching potential using SPLP Extraction Method
1312 in conjunction with USEPA Methods 6010/6020. SPLP results to be reported in units of mg/L for
comparison to 2L Standards.
3. Samples to be analyzed for Total Organic Carbon using method EPA 9060. Sample result in concentration
units of mg/kg of organic carbon on a dry weight basis.

Total Organic Carbon Units Method
TOC Mg/kg EPA 9060
Table 8-2. Background Soil Sample Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270
Sample Name Sample Date
BG-1D(5-6) 6/3/2015 12100 6.5 U 6.5 U 20.4 16.2 U 0.32 U 0.78 U 9 6.5 U 11.6 32200 13.7
BG-1D(14-15) 6/3/2015 11600 8.3 U 8.3 U 77.3 20.7 U 0.41 U 0.99 U 5.5 5 J 15.1 26800 4.9 J
BG-1D(24-25) 6/3/2015 14100 8.2 U 8.2 U 175 20.5 U 0.25 J 0.98 U 5.4 22.8 25.2 28200 6 J
BG-1D(30-31) 6/3/2015 13100 6.9 U 6.9 U 144 17.2 U 0.28 J 0.83 U 3.8 12.1 16.1 20000 6.9 U
BG-1D(34-35) 6/3/2015 10900 8.3 U 8.3 U 189 20.8 U 0.29 J 1 U 3.1 13.9 16 19300 6.3 J
BG-1D(44-45) 6/3/2015 9440 7.3 U 7.3 U 209 18.3 U 0.46 0.88 U 4.6 9.9 10.3 13500 7.3 U
BG-2D (3.5-5) 6/13/2015 15700 6.1 U 5.5 J 17.7 J 15.3 U 0.2 J 0.73 U 33 6.1 U 8.1 36500 10.9
BG-2D (48-49) 6/15/2015 10700 6.3 U 6.3 U 161 15.8 U 0.63 0.76 U 6 14.6 5.3 17100 15.2
BG-2D (53-54) 6/15/2015 11100 7.6 U 7.6 U 132 19 U 0.63 0.91 U 4.5 8.5 4.3 16000 3.9 J
BG-2D (60-62) 6/15/2015 15400 7.8 U 7.8 U 226 19.6 U 1.4 0.94 U 20.6 13.8 20.3 20600 7.8 U
BG-2D (74-75) 6/15/2015 11000 6.3 U 6.3 U 251 15.8 U 1 0.76 U 5.5 9.2 5.5 14600 3.5 J
BG-3D(3-5) 6/13/2015 23100 6.3 U 6.3 U 28.4 15.7 U 0.33 0.75 U 17.4 6.3 U 11.4 34100 18.1
BG-3D(18.5-20) 6/13/2015 26000 6.1 U 6.1 U 240 15.4 U 0.66 0.74 U 14.4 14.6 16.4 23800 4.2 J
BG-3D(23-24) 6/13/2015 26700 6.2 U 6.2 U 276 15.6 U 0.84 0.75 U 6.1 11 10.4 18100 3.7 J
BG-3D(27-28) 6/13/2015 21600 6.2 U 6.2 U 282 15.5 U 0.98 0.75 U 6.7 12.1 93.3 23500 3.3 J
BG-3D(34-35.5) 6/13/2015 15900 7.1 U 7.1 U 159 17.7 U 0.63 0.85 U 5.7 8 12.6 19400 7.1 U
BG-3D (73-75) 6/13/2015 7630 5.7 U 5.7 U 96.3 14.3 U 0.26 J 0.69 U 3.1 5.7 U 71.8 13500 5.7 U
MW-7BR(43.5-45) 4/24/2015 5650 J 6.4 UJ 6.4 UJ 31.3 12 J 0.32 U 0.77 U 3.6 7.3 J 4.5 12300 J 3.7 J+
MW-7BR(53.5-55) 4/24/2015 12300 S 7.3 U 7.3 U 110 19.6 0.23 J 0.88 U 7.6 14.7 15.4 21000 3.8 J
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
Page 1 of 3
Table 8-2. Background Soil Sample Results
Sample Name Sample Date
BG-1D(5-6) 6/3/2015
BG-1D(14-15) 6/3/2015
BG-1D(24-25) 6/3/2015
BG-1D(30-31) 6/3/2015
BG-1D(34-35) 6/3/2015
BG-1D(44-45) 6/3/2015
BG-2D (3.5-5) 6/13/2015
BG-2D (48-49) 6/15/2015
BG-2D (53-54) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(3-5) 6/13/2015
BG-3D(18.5-20) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(27-28) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D (73-75) 6/13/2015
MW-7BR(43.5-45) 4/24/2015
MW-7BR(53.5-55) 4/24/2015
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NS NS
65 1 NS 130 2.1 NS 0.28 6 1200 NS NS NS
29.1 0.048 3.2 U 1.3 J 6.5 U 3.2 U 6.5 U 89.2 6.5 U 162 U 321 U 162 U
226 0.0095 J 4.1 U 3.4 8.3 U 4.1 U 8.3 U 70.2 12.5 207 U 427 U 2750
1140 0.013 U 4.1 U 6.4 8.2 U 4.1 U 8.2 U 75.8 34.7 205 U 394 U 7340
518 0.011 U 3.4 U 5.3 4.7 J 2.3 J 6.9 U 59.7 30 96 J 330 U 5980
921 0.013 U 4.2 U 5.8 8.3 U 3.1 J 8.3 U 53.3 31.1 208 U 402 U 5710
817 0.012 U 3.7 U 4.7 7.3 U 4.6 7.3 U 38 33.6 244 353 U 4350
11.4 0.55 J- 3.1 U 1.5 U 6.1 U 3.9 6.1 U 89.2 7.7 451 301 UJ 308
290 0.01 UJ 3.2 U 4.5 6.3 U 7.2 6.3 U 43.9 45.7 NA NA NA
689 0.012 UJ 3.8 U 3.9 7.6 U 8 7.6 U 40.8 38.7 580 365 U 6530
1440 0.013 UJ 3.9 U 8.5 7.8 U 16.7 7.8 U 58.8 55.5 NA NA NA
975 0.01 UJ 3.2 U 4.5 6.3 U 14.9 6.3 U 37.9 42.9 NA NA NA
114 0.027 J+ 3.1 U 6.7 6.3 U 1.7 J 6.3 U 67.5 24.6 157 U 313 U 526
943 0.01 U 3.1 U 8.3 6.1 U 10.4 6.1 U 62.3 43 1150 309 U 8030
626 0.01 U 3.1 U 7.6 6.2 U 16.2 6.2 U 45.4 45.8 1420 NA 7660
724 0.0098 U 3.1 U 6.9 6.2 U 22.2 6.2 U 50.6 59.8 1540 307 U 9700
542 0.012 U 3.5 U 5.3 7.1 U 17.3 7.1 U 41.6 43.2 1520 NA 7530
805 0.0093 UJ 2.9 U 2.3 5.7 U 22.2 5.7 U 30.5 33.3 2480 284 UJ 4460
446 J 0.01 U 3.2 UJ 2.4 NA 3.2 U 6.4 U 29.2 6.6 160 U 323 U 620
615 0.012 U 3.7 U 4.9 7.3 U 2.1 J 7.3 U 58.5 31.7 183 U 369 U 4440
Page 2 of 3
Table 8-2. Background Soil Sample Results
Sample Name Sample Date
BG-1D(5-6) 6/3/2015
BG-1D(14-15) 6/3/2015
BG-1D(24-25) 6/3/2015
BG-1D(30-31) 6/3/2015
BG-1D(34-35) 6/3/2015
BG-1D(44-45) 6/3/2015
BG-2D (3.5-5) 6/13/2015
BG-2D (48-49) 6/15/2015
BG-2D (53-54) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(3-5) 6/13/2015
BG-3D(18.5-20) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(27-28) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D (73-75) 6/13/2015
MW-7BR(43.5-45) 4/24/2015
MW-7BR(53.5-55) 4/24/2015
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting detection
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS
NA 32.1 UJ 325 U 325 U 321 U 4.6 J 448 J
NA 42.7 UJ 2580 414 U 427 U 5.6 J 1020 U
NA 39.4 UJ 6500 410 U 394 U 5 J 970 U
NA 33 UJ 5550 345 U 330 U 5.4 J 818 U
NA 40.2 UJ 4740 417 U 402 U 5.1 J 969 U
NA 35.3 UJ 3410 367 U 353 U 5.7 J 857 U
NA 30.1 UJ 1920 306 U 175 J- 6.1 J 1640 J-
NA 31.4 UJ NA NA NA 4.5 J 749 UJ
NA 36.5 UJ 6120 380 U 365 U 4.7 J 894 UJ
NA 37.9 UJ NA NA NA 4.8 J 948 UJ
NA 29.6 UJ NA NA NA 5.5 J 726 UJ
31.3 U NA 586 314 U 313 U 4.8 J 555 J
30.9 U NA 6450 307 U 309 U 6 J 752 U
31.8 U NA 6410 311 U NA 5.8 J 765 U
30.7 U NA 8700 311 U 307 U 5.9 J 758 U
34.6 U NA 7120 354 U NA 6.5 J 835 U
NA 28.4 UJ 2760 286 U 284 UJ 6.1 J 683 UJ
NA 32.3 UJ 216 J+ 321 U 323 U 5.4 J 780 UJ
NA 36.9 UJ 3520 366 U 369 U 5.5 J 884 UJ
Page 3 of 3
Table 8-3. Background PWR and Bedrock Sample Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150
Sample Name Sample Date
BG-2BR (166.4-166.5) 7/19/2015 5810 5.5 U 5.5 U 8.4 13.6 U 0.24 J 0.65 U 2.6 4.7 J 44.4 8950
BG-2D (159-160) 6/18/2015 10400 5.2 U 5.2 U 85.8 13 U 0.19 J 0.63 U 6.8 10.4 7.4 18800
MW7BR 196.0-196.6 6/5/2015 12900 4.7 U 4.7 U 25.4 11.9 U 0.24 U 0.57 U 4.6 7.3 50 7550
MW-7BR(179.4-179.6) 6/5/2015 2730 4.9 U 4.9 U 32.4 12.3 U 0.25 U 0.59 U 1.3 2.6 J 1.4 4100
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Page 1 of 3
Table 8-3. Background PWR and Bedrock Sample Results
Sample Name Sample Date
BG-2BR (166.4-166.5) 7/19/2015
BG-2D (159-160) 6/18/2015
MW7BR 196.0-196.6 6/5/2015
MW-7BR(179.4-179.6) 6/5/2015
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium
7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS
270 65 1 NS 130 2.1 NS 0.28 6 1200 NS
5.5 U 272 0.0084 U 2.7 UJ 2.6 5.5 U 13.9 5.5 U NA 24.7 4620
5.2 U 754 0.0084 U 2.6 U 6.4 5.2 U 15.8 5.2 U 30.4 50.2 2680
4.7 U 110 0.0058 U 2.4 U 7.7 4.7 U 57.4 4.7 U 17.7 19.7 9090
4.9 U 80.1 0.0079 U 2.5 U 1.8 4.9 U 4.7 4.9 U 8.5 12.3 978
Page 2 of 3
Table 8-3. Background PWR and Bedrock Sample Results
Sample Name Sample Date
BG-2BR (166.4-166.5) 7/19/2015
BG-2D (159-160) 6/18/2015
MW7BR 196.0-196.6 6/5/2015
MW-7BR(179.4-179.6) 6/5/2015
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Chloride Magnesium Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
16887-00-6 7439-95-4 14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
NS NS 100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS NS NS
252 U 3830 25.2 UJ NA 293 273 U 252 U 7.5 J NA
265 U 8560 26.5 UJ NA 2770 257 J 265 U 8.2 J 650 U
271 U 3540 27.1 UJ NA 295 237 U 271 U 7.3 J NA
249 U 2320 24.9 UJ NA 1660 245 U 249 U 8.2 J NA
Page 3 of 3
Table 8-4. Soil Total Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270
Sample Name Sample Date
AB-1D (8.5-10) 6/17/2015 12100 7.4 U 7.4 U 29.2 18.8 U 0.38 U 0.89 U 44.4 18 24.7 40600 8.7
AB-1D (28.5-30) 6/17/2015 8660 6.9 U 6.9 U 25.8 11.8 J 0.3 J 0.82 U 35.8 32.7 37.6 71900 6.9 U
AB-1D (63.5-65.0) 6/17/2015 12200 6.1 U 6.1 U 31.2 15.3 U 0.31 U 0.73 U 33.8 6.1 UJ 15.9 31700 7
AB-1D (75-78) 6/17/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AB-1D (78.5-80) 6/17/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AB-2D (8.5-10) 6/15/2015 6750 7 U 7 U 25.7 17.5 U 0.35 U 0.84 U 16 8.6 18.6 31100 7 U
AB-2D (28.5-30.0) 6/15/2015 8940 J+ 9.5 UJ 9.5 U 15.1 23.7 U 0.47 UJ 1.1 U 24.7 J-7 J-27 43200 J-7.9 J+
AB-2D (68.5-70) 6/15/2015 12700 6.4 U 12.9 U 41.5 10.9 J 0.32 U 0.77 U 55.3 35.1 49.7 70000 4.7 J
AB-2D (83.5-85.0) 6/15/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AB-3D(3.5-5.0) 4/14/2015 2520 J 6.1 UJ 6.1 U 4.4 15.3 U 0.31 U 0.74 U 2.5 6.1 U 2.2 7620 J 6.1 U
AB-3D(48.5-50) 4/14/2015 6990 7.3 U 33.8 301 16.7 J 1.4 0.87 U 9.6 4.1 J 24.1 7220 6.3 J
AB-3D(68.5-70) 4/14/2015 9910 6.3 U 26.5 214 24.4 1.4 0.75 U 19.2 4.1 J 22.8 17900 8.2
AB-4D(3.5-5) 5/4/2015 8410 5.6 U 5.6 U 10.8 15.8 0.28 U 0.68 U 19.2 5.6 U 6.1 17800 4.9 J
AB-4D(48.5-50) 5/4/2015 7670 7.1 U 7.1 U 68.7 36.6 0.38 0.85 U 27.3 36.1 35 42400 7.1 U
AB-4D(58.5-61.5) 5/5/2015 12000 6.5 U 6.5 U 294 16.7 0.84 0.78 U 26.3 63.6 21.2 19000 6.5 U
AB-4S(53.5-55) 5/8/2015 15100 7.6 U 7.6 U 266 19.1 U 0.46 0.92 U 33.4 75 67.2 41300 4.6 J
AB-5D(58.5-60) 4/7/2015 8290 6.6 U 3.5 J 12.9 16.5 U 0.33 U 0.79 U 21.6 16.2 20.2 36600 6.6 U
AB-5D(63.5-65) 4/7/2015 8470 7.1 U 3.7 J 67.2 17.7 U 0.45 0.85 U 6.1 6 J 49 37100 7.1 U
AB-6D(8.5-10) 4/28/2015 8450 7.1 U 4.4 J 9.4 35.8 0.36 U 0.85 U 44.6 7.1 U 7.1 43300 7.7
AB-6D(28.5-30) 4/28/2015 8840 7.6 U 7.6 U 51.2 54.3 0.39 0.91 U 36.5 8.1 57.3 58300 7.8
AB-6D(73.5-75) 4/28/2015 5990 6.5 U 6.5 U 6.7 27 0.33 U 0.78 U 26.8 6.5 U 14.3 28700 5.9 J
AB-7D(23.5-25) 3/18/2015 5720 3 U 1.6 J 10.2 3 U 0.06 U 0.36 U 16.8 3 U 5 7830 4.4
AB-7D(28.5-30) 3/18/2015 9090 3.6 U 24.6 79.6 2 J 0.73 0.43 U 27.6 4.7 15.2 21200 12.2
AB-7S(18.5-20) 3/23/2015 11900 J 4 U 35.1 213 30.5 2.3 J+ 0.47 U 17.2 8.3 59.6 J+16400 13.6
AB-7S(20-25) 3/23/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AB-8S(13-15) 4/1/2015 30900 4.6 UJ 9.2 UJ 300 51.7 1 0.55 U 186 48.4 71.2 57500 4.6 U
AB-8S(20-25) 4/1/2015 31300 4.2 U 8.4 U 523 50 1.4 0.5 U 177 70.1 82.3 50200 4.2 U
AB-8S(30-35) 4/1/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AS-1D-4 (83.5-85.5) 3/3/2015 14000 3.4 U 2.4 J 92.1 13.5 0.31 J 0.41 U 7.6 J+5.1 14.5 14400 3.3 J
AS-1D-5 (88.5-90.5) 3/3/2015 7740 3.5 U 3.5 U 82.6 6.7 0.3 J 0.42 U 3.4 J+5.2 4.2 7540 1.8 J
AS-2D-3 (23.5-25) 3/3/2015 2300 3.4 U 3.4 U 50.6 15 0.23 J 0.41 U 4.2 J+5.9 9.3 12200 12.5
AS-2D-4 (28.5-30) 3/3/2015 2500 3 U 3 U 30.2 16 0.27 J 0.35 U 4.8 J+6.1 12.5 12900 6
AS-2D-2 (30-31.5) 3/2/2015 4950 3.1 U 10.9 51.2 14.9 0.67 0.37 U 9.7 J+3.7 15.3 14300 6.8
AS-2S (23.5-25) 3/5/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AS-2S (28.5-30) 3/5/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AS-2S (50-53) 3/6/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AS-2S (90) 3/9/2015 NA NA NA NA NA NA NA NA NA NA NA NA
AS-3D 53.5-55' 3/10/2015 3940 3.1 U 8.6 62.9 15.4 0.42 0.37 U 9.1 5.2 16.3 16600 8.4
AS-3D 58.5-60' 3/10/2015 3130 3.3 U 3.3 U 142 8.1 0.18 0.39 U 3.1 8.3 7.9 11100 2.4 J
BG-1D(5-6) 6/3/2015 12100 6.5 U 6.5 U 20.4 16.2 U 0.32 U 0.78 U 9 6.5 U 11.6 32200 13.7
BG-1D(14-15) 6/3/2015 11600 8.3 U 8.3 U 77.3 20.7 U 0.41 U 0.99 U 5.5 5 J 15.1 26800 4.9 J
BG-1D(24-25) 6/3/2015 14100 8.2 U 8.2 U 175 20.5 U 0.25 J 0.98 U 5.4 22.8 25.2 28200 6 J
BG-1D(30-31) 6/3/2015 13100 6.9 U 6.9 U 144 17.2 U 0.28 J 0.83 U 3.8 12.1 16.1 20000 6.9 U
BG-1D(34-35) 6/3/2015 10900 8.3 U 8.3 U 189 20.8 U 0.29 J 1 U 3.1 13.9 16 19300 6.3 J
BG-1D(44-45) 6/3/2015 9440 7.3 U 7.3 U 209 18.3 U 0.46 0.88 U 4.6 9.9 10.3 13500 7.3 U
BG-2D (3.5-5) 6/13/2015 15700 6.1 U 5.5 J 17.7 J 15.3 U 0.2 J 0.73 U 33 6.1 U 8.1 36500 10.9
BG-2D (48-49) 6/15/2015 10700 6.3 U 6.3 U 161 15.8 U 0.63 0.76 U 6 14.6 5.3 17100 15.2
BG-2D (53-54) 6/15/2015 11100 7.6 U 7.6 U 132 19 U 0.63 0.91 U 4.5 8.5 4.3 16000 3.9 J
BG-2D (60-62) 6/15/2015 15400 7.8 U 7.8 U 226 19.6 U 1.4 0.94 U 20.6 13.8 20.3 20600 7.8 U
BG-2D (74-75) 6/15/2015 11000 6.3 U 6.3 U 251 15.8 U 1 0.76 U 5.5 9.2 5.5 14600 3.5 J
BG-3D(3-5) 6/13/2015 23100 6.3 U 6.3 U 28.4 15.7 U 0.33 0.75 U 17.4 6.3 U 11.4 34100 18.1
BG-3D(18.5-20) 6/13/2015 26000 6.1 U 6.1 U 240 15.4 U 0.66 0.74 U 14.4 14.6 16.4 23800 4.2 J
BG-3D(23-24) 6/13/2015 26700 6.2 U 6.2 U 276 15.6 U 0.84 0.75 U 6.1 11 10.4 18100 3.7 J
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Page 1 of 9
Table 8-4. Soil Total Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
BG-3D(27-28) 6/13/2015 21600 6.2 U 6.2 U 282 15.5 U 0.98 0.75 U 6.7 12.1 93.3 23500 3.3 J
BG-3D(34-35.5) 6/13/2015 15900 7.1 U 7.1 U 159 17.7 U 0.63 0.85 U 5.7 8 12.6 19400 7.1 U
BG-3D (73-75) 6/13/2015 7630 5.7 U 5.7 U 96.3 14.3 U 0.26 J 0.69 U 3.1 5.7 U 71.8 13500 5.7 U
C-1D(13.5-15.0) 3/24/2015 5470 3 U 3 U 8.8 3 U 0.13 0.36 U 9.3 3 U 18.1 6380 3 U
C-1D(23.5-25.0) 3/24/2015 9130 2.9 U 2.9 U 95.5 2.9 U 0.32 0.34 U 6.2 6 15.3 11500 2.9 U
C-2D(18.5-20) 3/16/2015 9940 3.7 U 3.7 UJ 10.2 3.7 U 0.15 0.45 U 9.9 3.1 J 27 39000 4.8
C-2D(23.5-25) 3/16/2015 5460 2.9 U 2.9 U 23.5 2.9 U 0.086 0.35 U 6.4 14 7.2 12800 3.5
C-2S(30-35) 3/23/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-10S (8-9) 6/17/2015 14000 7.1 U 7.1 U 57.6 17.8 U 0.32 J 0.85 U 12.3 24.4 18.6 30100 5.9 J
GWA-10S (13-14) 6/17/2015 14900 7.5 U 7.5 U 76.6 18.6 U 0.44 0.89 U 11.1 20.7 27.9 25400 7.5 U
GWA-10S (21-23) 6/17/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-1D(28.5-30) 6/8/2015 25200 7.6 U 7.6 U 164 18.9 U 1 0.91 U 92.8 34.8 27.9 31700 7.6 U
GWA-1D(33.5-35) 6/8/2015 39600 8.5 U 8.5 U 288 21.2 U 0.96 1 U 110 38.9 232 55200 8.5 U
GWA-1S(42-47) 6/9/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-20D(40-41.5) 6/14/2015 6540 6.4 U 6.4 U 12.4 16 U 0.33 0.77 U 4.4 6.4 U 2.7 9880 6.4 U
GWA-20D(45-46.5) 6/14/2015 12700 6.5 U 6.5 U 63.3 16.3 U 0.24 J 0.78 U 7.4 5 J 3.2 16300 6.5 U
GWA-21D (3.5-5) 7/15/2015 37400 8.5 U 12.2 37.7 21.4 U 0.41 J 1 U 62.4 8.5 U 7.6 64000 20.9
GWA-21D (8.5-10) 7/16/2015 5430 J+ 5.9 U 3.6 J 2.5 J+ 14.8 UJ 0.3 U 0.71 U 17.7 J+ 5.9 U 5.2 J+38300 3.2 J
GWA-21D (18.5-20) 7/16/2015 4250 7.4 U 7.4 U 3.7 UJ 18.4 U 0.44 0.88 U 16.9 J+5.3 J 7.9 J+26600 7.4 UJ
GWA-21D (48.5-50) 7/18/2015 2070 6.3 U 6.3 U 113 15.7 UJ 0.24 J 0.75 U 3.2 4.5 J 16 14300 6.3 U
GWA-21D (58.5-60) 7/18/2015 2550 6.5 U 6.5 U 65.9 16.2 U 0.32 U 0.78 U 1.2 J 7.3 12.3 7570 6.5 U
GWA-22D(38.5-40.0) 5/7/2015 4130 7.7 U 7.7 U 24.7 19.2 U 0.38 U 0.92 U 4 7.7 U 9.9 7160 7.7 U
GWA-22D(48.5-50.0) 5/7/2015 6750 6.8 U 6.8 U 32.6 17 U 0.34 UJ 0.82 U 2.1 3.9 J 3.2 6990 6.8 U
GWA-23D(33.5-35) 5/12/2015 3140 6.5 U 6.5 U 27.6 16.3 U 0.33 U 0.78 U 1.6 UJ 6.9 2 5230 5 J
GWA-23D(38.5-40) 5/12/2015 4560 6.7 U 6.7 U 18.4 16.8 U 0.34 U 0.81 U 2.2 18.6 2.8 7710 6.7 U
GWA-2D(38.5-40.0) 4/14/2015 17800 7 U 7 U 151 16.2 J 0.26 J 0.84 U 1.5 J 15 16.8 24100 7 U
GWA-2D(43.5-45.0) 4/14/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-2D(43.5-45.0) 4/14/2015 24900 5.8 U 5.8 U 253 21.3 0.24 J 0.69 U 3.6 12.6 25.8 32300 5.8 U
GWA-2S(48-52) 4/16/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-3D(18.5-19) 4/21/2015 3450 5.8 U 5.8 U 25.6 14.5 U 0.29 U 0.7 U 4.5 5.8 U 1.4 UJ 5320 5.8 U
GWA-4S (15-19) 6/21/2015 17300 8 U 8 U 115 39.8 U 1.4 0.96 U 58 25.5 33.9 38700 8 U
GWA-4S (24-26) 6/21/2015 7290 6.8 U 6.8 U 115 17.1 U 0.35 0.82 U 5.1 5.8 J 3.1 10200 6.8 U
GWA-4S (32-35) 6/21/2015 5900 8.2 U 8.2 U 95.6 20.6 U 0.27 J 0.99 U 5.5 4.4 J 5.2 8190 8.2 U
GWA-4S (34-36) 6/21/2015 3800 6 U 6 U 70.2 15.1 U 0.3 U 0.72 U 2.6 3.1 J 2.4 4950 6 U
GWA-5D(58.5-60) 4/10/2015 3340 6.9 U 6.9 U 28.7 17.2 U 0.22 J 0.83 U 3.2 13.5 7.1 18600 4.5 J
GWA-5D(68.5-70) 4/10/2015 4390 8 U 8 U 32.7 19.9 U 0.4 U 0.96 U 8 17.3 8.2 16000 8 U
GWA-5S(72-74) 4/14/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-6D-1 (43.5-45) 3/4/2015 2380 3.4 U 3.4 U 75.5 14.9 0.29 J 0.41 U 7.3 J+25.4 23.2 19000 4.6
GWA-6D-2 (48.5-50) 3/4/2015 13200 4.4 U 4.4 U 176 16.2 0.3 J 0.53 U 1.2 J+10.5 28.1 18200 2.6 J
GWA-7D(13.5-15.0) 4/17/2015 14600 7.1 U 7.1 U 212 17.7 U 0.35 U 0.85 U 13 34.7 47.9 23200 7.1 U
GWA-7D(23.5-25.0) 4/17/2015 13100 6.9 U 6.9 U 130 17.4 U 0.35 U 0.83 U 15.8 20.1 47.7 19000 6.9 U
GWA-7S(7.0-8.0) 4/21/2015 8390 6.7 U 6.7 U 117 16.7 U 0.33 U 0.8 U 53.4 73.8 51.8 58900 4.9 J
GWA-7S(22.0-23.0) 4/21/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-8D(8.5-10) 6/1/2015 8480 6.6 U 6.6 U 18.1 82.7 U 0.25 J 0.79 U 131 87 49 54200 6.6 U
GWA-8D(18.5-20) 6/1/2015 22800 7.2 U 7.2 U 67.1 18 U 0.69 0.86 U 135 102 50.4 36400 7.2 U
GWA-8D(19-20) 6/14/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-9BR(14-17) 5/6/2015 NA NA NA NA NA NA NA NA NA NA NA NA
GWA-9D(1) 5/5/2015 20300 7 U 7 U 105 17.5 U 0.5 0.84 U 52.1 38.7 55.5 62500 7 U
GWA-9D(3.5-5.0) 5/4/2015 39800 6.5 U 3.5 J 35.3 16.3 U 0.4 0.78 U 210 19.8 61.9 109000 12.2
MW-15D(3.5-5) 4/29/2015 24000 7.9 U 7.9 U 66.5 40.1 0.88 0.95 U 30.1 6.6 J 22.5 J+48800 17.8
MW-15D(13.5-15) 4/29/2015 18400 8.4 U 8.4 U 200 33.5 1.8 1 U 29.5 17.4 18.6 J+36400 16
MW-7BR(43.5-45) 4/24/2015 5650 J 6.4 UJ 6.4 UJ 31.3 12 J 0.32 U 0.77 U 3.6 7.3 J 4.5 12300 J 3.7 J+
MW-7BR(53.5-55) 4/24/2015 12300 S 7.3 U 7.3 U 110 19.6 0.23 J 0.88 U 7.6 14.7 15.4 21000 3.8 J
Page 2 of 9
Table 8-4. Soil Total Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
MW-9BR(10-12) 5/11/2015 NA NA NA NA NA NA NA NA NA NA NA NA
MW-9D(3.5-5) 5/1/2015 20300 9 U 9 U 187 23.3 1.2 1.1 U 23.7 37.9 15.7 26000 17
OB-1(33.5-35.0) 4/16/2015 3580 7.2 U 7.2 U 28.8 18 U 0.42 0.87 U 7.9 17.6 31.1 27400 7.2 U
OB-1(43.5-45.0) 4/16/2015 3480 9 U 9 U 74.2 22.5 U 0.51 1.1 U 4.4 15.9 54.4 36700 9 U
OB-2(38.5-40.0) 4/14/2015 14400 9.5 U 9.5 U 157 26.7 1.2 1.1 U 2.7 36.1 76.4 41000 9.5 U
OB-2(48.5-50.0) 4/14/2015 15600 7.9 U 7.9 U 222 16.2 J 0.66 0.95 U 1.8 J 16.8 59.1 24900 7.9 U
Std. Units - pH units
Qualifier Notes:
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Page 3 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
AB-1D (8.5-10) 6/17/2015
AB-1D (28.5-30) 6/17/2015
AB-1D (63.5-65.0) 6/17/2015
AB-1D (75-78) 6/17/2015
AB-1D (78.5-80) 6/17/2015
AB-2D (8.5-10) 6/15/2015
AB-2D (28.5-30.0) 6/15/2015
AB-2D (68.5-70) 6/15/2015
AB-2D (83.5-85.0) 6/15/2015
AB-3D(3.5-5.0) 4/14/2015
AB-3D(48.5-50) 4/14/2015
AB-3D(68.5-70) 4/14/2015
AB-4D(3.5-5) 5/4/2015
AB-4D(48.5-50) 5/4/2015
AB-4D(58.5-61.5) 5/5/2015
AB-4S(53.5-55) 5/8/2015
AB-5D(58.5-60) 4/7/2015
AB-5D(63.5-65) 4/7/2015
AB-6D(8.5-10) 4/28/2015
AB-6D(28.5-30) 4/28/2015
AB-6D(73.5-75) 4/28/2015
AB-7D(23.5-25) 3/18/2015
AB-7D(28.5-30) 3/18/2015
AB-7S(18.5-20) 3/23/2015
AB-7S(20-25) 3/23/2015
AB-8S(13-15) 4/1/2015
AB-8S(20-25) 4/1/2015
AB-8S(30-35) 4/1/2015
AS-1D-4 (83.5-85.5) 3/3/2015
AS-1D-5 (88.5-90.5) 3/3/2015
AS-2D-3 (23.5-25) 3/3/2015
AS-2D-4 (28.5-30) 3/3/2015
AS-2D-2 (30-31.5) 3/2/2015
AS-2S (23.5-25) 3/5/2015
AS-2S (28.5-30) 3/5/2015
AS-2S (50-53) 3/6/2015
AS-2S (90) 3/9/2015
AS-3D 53.5-55' 3/10/2015
AS-3D 58.5-60' 3/10/2015
BG-1D(5-6) 6/3/2015
BG-1D(14-15) 6/3/2015
BG-1D(24-25) 6/3/2015
BG-1D(30-31) 6/3/2015
BG-1D(34-35) 6/3/2015
BG-1D(44-45) 6/3/2015
BG-2D (3.5-5) 6/13/2015
BG-2D (48-49) 6/15/2015
BG-2D (53-54) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(3-5) 6/13/2015
BG-3D(18.5-20) 6/13/2015
BG-3D(23-24) 6/13/2015
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NS NS
65 1 NS 130 2.1 NS 0.28 6 1200 NS NS NS
652 0.098 3.8 U 10.8 7.4 U 2.9 J 7.4 U 86.4 15.1 265 364 U 686
563 0.033 3.4 U 14.6 6.9 U 3.4 U 6.9 U 92.6 18.5 168 U 336 U 369
20.2 0.13 3.1 U 5.3 6.1 U 3.1 U 6.1 U 77.3 11.7 180 316 U 602
NA NA NA NA NA NA NA NA NA NA NA NA
NA NA NA NA NA NA NA NA NA NA NA NA
171 0.0058 J 3.5 U 5.3 7 U 3.5 U 7 U 91.9 8.8 175 U 342 U 217
101 J-0.032 4.7 UJ 5 J- 9.5 UJ 4.7 U 9.5 U 161 J+21.5 237 U 473 U 256
522 0.031 3.2 U 30.8 6.4 U 3.2 U 6.4 U 150 14.7 161 U 333 U 222
NA NA NA NA NA NA NA NA NA NA NA NA
41.4 J+ 0.01 UJ 3.1 U 1.5 U 6.1 UJ 3.1 U 6.1 U 18.1 3.3 J 153 U 313 U 130 J
50.3 0.035 3.6 U 8.3 7.3 U 142 7.3 U 23.9 8.7 3620 372 U 744
55.1 0.036 6.6 7 6.3 U 118 6.3 U 47.9 10.2 2460 312 U 681
51.2 0.032 2.8 U 1.6 5.6 U 2.8 U 5.6 U 36.4 4.5 J 202 289 U 214
485 0.011 U 3.5 U 15.5 7.1 U 10.9 7.1 U 58.1 11.6 614 353 U 890
3320 0.01 U 3.2 U 167 6.5 U 19.5 6.5 U 40.4 83 2190 NA 5220
1950 0.013 U 3.8 U 97.5 7.6 U 20.7 7.6 U 81.6 62.2 2250 386 U 5460
135 0.021 3.3 U 2.2 6.6 U 15.3 6.6 U 119 8.3 J+ 545 333 U 183
108 0.021 3.5 U 10.6 7.1 U 29 7.1 U 141 41.6 614 346 U 692
43.1 0.06 3.6 U 1.8 U 7.1 U 3.6 U 7.1 U 99.6 7.1 U 178 U 344 U 90.3 J
507 0.017 3.8 U 5.9 7.6 U 3.8 U 7.6 U 149 7.6 U 116 J 375 U 249
68.9 0.022 3.3 U 1.6 U 6.5 U 3.3 U 6.5 U 77.9 6.5 U 122 J 324 U 111 J
6.8 J+ 0.043 0.31 J 0.44 J+ 3 U 1.7 3 U 58.2 3.1 J+ 20.5 J+ 305 U 72.4
119 0.029 1.7 5.3 3.6 U 59.9 3.6 U 56.3 12.9 665 348 U 295
158 0.017 2.7 J 16.7 J+2.4 J 174 4 U 66.9 25 1900 J+ 411 U 807 J+
NA NA NA NA NA NA NA NA NA NA NA NA
1080 0.013 J 4.6 U 70.9 9.2 UJ 6.7 4.6 U 140 52.7 491 477 U 6550
1660 0.0087 J 4.2 U 75.1 8.4 U 16.3 4.2 U 145 49.1 1180 426 U 7340
NA NA NA NA NA NA NA NA NA NA NA NA
170 0.019 0.68 U 4 3.4 U 8.9 3.4 U 35.4 28.7 373 J+ 344 U 4730
194 0.01 U 0.7 U 3.1 3.5 U 10 3.5 U 17.2 24.7 536 J+ 335 U 3710
313 0.0075 J 0.69 U 2.6 3.4 U 1.6 J+ 3.4 U 33.8 10.6 61 J+ 323 U 43.7 J+
276 0.0082 J 0.59 U 2.9 3 U 1.4 J+ 3 U 37.3 7.4 65.1 J+ 302 U 51.5 J+
85 0.023 1.1 J+ 4.9 3.1 U 27.7 3.1 U 44.4 7.4 J+ 343 J+ 302 U 157
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 NA NA NA NA NA NA NA NA NA
NA NA NA NA NA NA NA NA NA NA NA NA
127 0.012 1.6 3.5 3.1 U 44.8 3.1 U 46 6.4 779 305 U 207
793 0.01 U 0.66 U 2.2 3.3 U 0.43 J+ 3.3 U 21 7.1 32.9 U 327 U 107
29.1 0.048 3.2 U 1.3 J 6.5 U 3.2 U 6.5 U 89.2 6.5 U 162 U 321 U 162 U
226 0.0095 J 4.1 U 3.4 8.3 U 4.1 U 8.3 U 70.2 12.5 207 U 427 U 2750
1140 0.013 U 4.1 U 6.4 8.2 U 4.1 U 8.2 U 75.8 34.7 205 U 394 U 7340
518 0.011 U 3.4 U 5.3 4.7 J 2.3 J 6.9 U 59.7 30 96 J 330 U 5980
921 0.013 U 4.2 U 5.8 8.3 U 3.1 J 8.3 U 53.3 31.1 208 U 402 U 5710
817 0.012 U 3.7 U 4.7 7.3 U 4.6 7.3 U 38 33.6 244 353 U 4350
11.4 0.55 J- 3.1 U 1.5 U 6.1 U 3.9 6.1 U 89.2 7.7 451 301 UJ 308
290 0.01 UJ 3.2 U 4.5 6.3 U 7.2 6.3 U 43.9 45.7 NA NA NA
689 0.012 UJ 3.8 U 3.9 7.6 U 8 7.6 U 40.8 38.7 580 365 U 6530
1440 0.013 UJ 3.9 U 8.5 7.8 U 16.7 7.8 U 58.8 55.5 NA NA NA
975 0.01 UJ 3.2 U 4.5 6.3 U 14.9 6.3 U 37.9 42.9 NA NA NA
114 0.027 J+ 3.1 U 6.7 6.3 U 1.7 J 6.3 U 67.5 24.6 157 U 313 U 526
943 0.01 U 3.1 U 8.3 6.1 U 10.4 6.1 U 62.3 43 1150 309 U 8030
626 0.01 U 3.1 U 7.6 6.2 U 16.2 6.2 U 45.4 45.8 1420 NA 7660
Page 4 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
BG-3D(27-28) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D (73-75) 6/13/2015
C-1D(13.5-15.0) 3/24/2015
C-1D(23.5-25.0) 3/24/2015
C-2D(18.5-20) 3/16/2015
C-2D(23.5-25) 3/16/2015
C-2S(30-35) 3/23/2015
GWA-10S (8-9) 6/17/2015
GWA-10S (13-14) 6/17/2015
GWA-10S (21-23) 6/17/2015
GWA-1D(28.5-30) 6/8/2015
GWA-1D(33.5-35) 6/8/2015
GWA-1S(42-47) 6/9/2015
GWA-20D(40-41.5) 6/14/2015
GWA-20D(45-46.5) 6/14/2015
GWA-21D (3.5-5) 7/15/2015
GWA-21D (8.5-10) 7/16/2015
GWA-21D (18.5-20) 7/16/2015
GWA-21D (48.5-50) 7/18/2015
GWA-21D (58.5-60) 7/18/2015
GWA-22D(38.5-40.0) 5/7/2015
GWA-22D(48.5-50.0) 5/7/2015
GWA-23D(33.5-35) 5/12/2015
GWA-23D(38.5-40) 5/12/2015
GWA-2D(38.5-40.0) 4/14/2015
GWA-2D(43.5-45.0) 4/14/2015
GWA-2D(43.5-45.0) 4/14/2015
GWA-2S(48-52) 4/16/2015
GWA-3D(18.5-19) 4/21/2015
GWA-4S (15-19) 6/21/2015
GWA-4S (24-26) 6/21/2015
GWA-4S (32-35) 6/21/2015
GWA-4S (34-36) 6/21/2015
GWA-5D(58.5-60) 4/10/2015
GWA-5D(68.5-70) 4/10/2015
GWA-5S(72-74) 4/14/2015
GWA-6D-1 (43.5-45) 3/4/2015
GWA-6D-2 (48.5-50) 3/4/2015
GWA-7D(13.5-15.0) 4/17/2015
GWA-7D(23.5-25.0) 4/17/2015
GWA-7S(7.0-8.0) 4/21/2015
GWA-7S(22.0-23.0) 4/21/2015
GWA-8D(8.5-10) 6/1/2015
GWA-8D(18.5-20) 6/1/2015
GWA-8D(19-20) 6/14/2015
GWA-9BR(14-17) 5/6/2015
GWA-9D(1) 5/5/2015
GWA-9D(3.5-5.0) 5/4/2015
MW-15D(3.5-5) 4/29/2015
MW-15D(13.5-15) 4/29/2015
MW-7BR(43.5-45) 4/24/2015
MW-7BR(53.5-55) 4/24/2015
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NS NS
65 1 NS 130 2.1 NS 0.28 6 1200 NS NS NS
724 0.0098 U 3.1 U 6.9 6.2 U 22.2 6.2 U 50.6 59.8 1540 307 U 9700
542 0.012 U 3.5 U 5.3 7.1 U 17.3 7.1 U 41.6 43.2 1520 NA 7530
805 0.0093 UJ 2.9 U 2.3 5.7 U 22.2 5.7 U 30.5 33.3 2480 284 UJ 4460
24.1 0.0063 J 0.59 U 2 3 U 6.2 3 U 15.2 11.9 309 280 U 961
242 0.01 U 0.57 U 4 2.9 U 11.5 2.9 U 23.3 33.9 302 275 U 5800
20.5 0.01 U 0.74 U 0.57 J+ 3.7 U 3.3 3.7 U 38.1 6.9 J+ 84.3 359 U 178
237 0.01 U 0.58 U 1.6 2.9 U 1.2 2.9 U 40.1 13.3 25 J+ 297 U 1470
NA NA NA NA NA NA NA NA NA NA NA NA
1840 0.063 J- 3.6 U 3 7.1 U 2.4 J 7.1 U 59.3 16.5 134 J 342 U 1520
893 0.024 J- 3.7 U 5.4 7.5 U 5 7.5 U 69 34.2 315 356 U 3960
NA NA NA NA NA NA NA NA NA NA NA NA
1090 0.012 U 3.8 U 34 7.6 U 5.7 7.6 U 88.2 92.4 1120 359 U 10400
2940 0.014 U 4.2 U 49.7 8.5 U 14.5 8.5 U 133 183 3830 430 U 26600
NA NA NA NA NA NA NA NA NA NA NA NA
131 0.011 U 3.2 U 2.3 6.4 U 3.2 U 6.4 U 19 7.1 116 J 325 U 457
184 0.01 U 3.3 U 4.3 6.5 U 3.3 U 6.5 U 31.1 28.7 125 J 321 U 4320
153 0.54 4.3 UJ 3.5 8.5 U 7.1 8.5 U NA 17.3 379 402 U 232
92.7 0.0077 J 3 UJ 1.5 UJ 5.9 U 3 UJ 5.9 U NA 5.9 UJ NA NA NA
68.4 0.0098 J 3.7 UJ 10.2 7.4 U 3.7 UJ 7.4 U NA 35.5 J+ 184 UJ 369 U 184 UJ
592 0.01 UJ 3.1 UJ 2.9 6.3 U 3.1 U 6.3 U NA 20.2 NA NA NA
398 0.011 U 3.2 UJ 2.4 6.5 U 3.2 U 6.5 U NA 11.4 162 U 320 U 162 U
77.7 0.012 U 3.8 U 1.9 U 7.7 U 3.8 U 7.7 U 7 J 7.7 U 192 U 369 U 193
113 0.011 U 3.4 U 1.1 J 6.8 U 2 J 6.8 U 9.3 11.6 170 U 346 U 478
336 0.01 UJ 3.3 U 1.1 J 6.5 U 3.3 U 6.5 U 9.9 3.8 J+ 163 U 338 UJ 147 J
210 0.01 UJ 3.4 U 1.6 J 6.7 U 3.4 U 6.7 U 14.2 7.1 168 U 332 UJ 776
713 0.012 U 3.5 U 9.2 7 U 32.8 7 U 89.4 53.2 5290 362 U 10000
NA NA NA NA NA NA NA NA NA NA NA NA
1120 0.0092 U 2.9 U 12.3 5.8 U 35.1 5.8 U 126 98.8 4360 277 U 20000
NA NA NA NA NA NA NA NA NA NA NA NA
155 0.0087 UJ 2.9 U 2.9 5.8 U 4.4 5.8 U 11.5 14.7 843 271 UJ 2360
367 0.0081 J- 8 U 20.4 5.6 J 42.9 8 U 62.9 38.9 NA NA NA
269 0.012 UJ 3.4 U 4 6.8 U 9.2 6.8 U 19.2 32.5 533 332 U 4980
168 0.013 UJ 4.1 U 3.1 8.2 U 8 8.2 U 17.3 22.1 389 397 U 3460
231 0.0097 UJ 3 U 2.2 6 U 7.3 6 U 5.6 J 19.3 474 300 U 2260
477 0.011 U 3.4 U 1.7 U 6.9 U 3.4 U 6.9 U 33.6 6.8 J 172 U 341 U 172 U
575 0.012 U 4 U 2 UJ 8 U 4 U 8 U 34.9 6.5 J 199 U 389 U 277
NA NA NA NA NA NA NA NA NA NA NA NA
1270 0.01 U 0.68 U 4.2 J+ 3.4 U 0.68 U 3.4 U 55.8 3.6 J+ 34.1 U 353 U 92.1 J+
523 0.01 U 0.89 U 2.4 J+ 4.4 U 21.8 4.4 U 55.5 56.7 J+ 4250 446 UJ 8830
813 0.011 U 3.5 U 14 7.1 U 26.5 7.1 U 73.8 68.4 3950 330 U 10200
296 0.011 U 3.5 U 10.5 6.9 U 25 6.9 U 59.2 54.3 4200 347 U 8020
1700 0.045 3.3 U 3.2 6.7 U 6.6 6.7 U 209 25.2 545 326 U 487
NA NA NA NA NA NA NA NA NA NA NA NA
959 0.063 3.3 U 37.2 6.6 U 1.9 J 6.6 U 80.1 8.6 90 J+ 325 U 615 J+
1410 0.011 U 3.6 U 151 7.2 U 7.4 7.2 U 33.5 143 1490 345 U 25800
NA NA NA NA NA NA NA NA NA NA NA NA
NA NA NA NA NA NA NA NA NA NA NA NA
1560 0.034 3.5 U 17.8 7 U 6.1 7 U 143 25.7 459 358 U 975
937 0.13 3.3 U 52.4 6.5 U 5.3 6.5 U 148 38.9 262 330 U 845
335 0.011 J 4 U 7.4 7.9 U 4.5 J+ 7.9 U 118 37.4 194 J+ 381 U 1720 J+
574 0.026 4.2 U 12.2 8.4 U 10.3 J+ 8.4 U 74.4 74.1 596 J+ 434 U 5700
446 J 0.01 U 3.2 UJ 2.4 NA 3.2 U 6.4 U 29.2 6.6 160 U 323 U 620
615 0.012 U 3.7 U 4.9 7.3 U 2.1 J 7.3 U 58.5 31.7 183 U 369 U 4440
Page 5 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
MW-9BR(10-12) 5/11/2015
MW-9D(3.5-5) 5/1/2015
OB-1(33.5-35.0) 4/16/2015
OB-1(43.5-45.0) 4/16/2015
OB-2(38.5-40.0) 4/14/2015
OB-2(48.5-50.0) 4/14/2015
Std. Units - pH units
Qualifier Notes:
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NS NS
65 1 NS 130 2.1 NS 0.28 6 1200 NS NS NS
NA NA NA NA NA NA NA NA NA NA NA NA
656 0.047 4.5 U 10 9 U 19.2 9 U 55.4 39.4 1130 430 U 2610
905 0.011 U 3.6 U 1.8 U 7.2 U 3.6 U 7.2 U 91 6.8 J 180 U 352 UJ 180 U
1270 0.014 U 4.5 U 1.8 J 9 U 4.5 U 9 U 128 9.3 225 U 444 U 199 J
1950 0.015 U 4.7 U 11.4 9.5 U 3 J 9.5 U 130 60.8 155 J 488 U 4330
938 0.013 U 3.9 U 8.9 7.9 U 3.8 J 7.9 U 80.2 84.9 266 391 U 7940
Page 6 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
AB-1D (8.5-10) 6/17/2015
AB-1D (28.5-30) 6/17/2015
AB-1D (63.5-65.0) 6/17/2015
AB-1D (75-78) 6/17/2015
AB-1D (78.5-80) 6/17/2015
AB-2D (8.5-10) 6/15/2015
AB-2D (28.5-30.0) 6/15/2015
AB-2D (68.5-70) 6/15/2015
AB-2D (83.5-85.0) 6/15/2015
AB-3D(3.5-5.0) 4/14/2015
AB-3D(48.5-50) 4/14/2015
AB-3D(68.5-70) 4/14/2015
AB-4D(3.5-5) 5/4/2015
AB-4D(48.5-50) 5/4/2015
AB-4D(58.5-61.5) 5/5/2015
AB-4S(53.5-55) 5/8/2015
AB-5D(58.5-60) 4/7/2015
AB-5D(63.5-65) 4/7/2015
AB-6D(8.5-10) 4/28/2015
AB-6D(28.5-30) 4/28/2015
AB-6D(73.5-75) 4/28/2015
AB-7D(23.5-25) 3/18/2015
AB-7D(28.5-30) 3/18/2015
AB-7S(18.5-20) 3/23/2015
AB-7S(20-25) 3/23/2015
AB-8S(13-15) 4/1/2015
AB-8S(20-25) 4/1/2015
AB-8S(30-35) 4/1/2015
AS-1D-4 (83.5-85.5) 3/3/2015
AS-1D-5 (88.5-90.5) 3/3/2015
AS-2D-3 (23.5-25) 3/3/2015
AS-2D-4 (28.5-30) 3/3/2015
AS-2D-2 (30-31.5) 3/2/2015
AS-2S (23.5-25) 3/5/2015
AS-2S (28.5-30) 3/5/2015
AS-2S (50-53) 3/6/2015
AS-2S (90) 3/9/2015
AS-3D 53.5-55' 3/10/2015
AS-3D 58.5-60' 3/10/2015
BG-1D(5-6) 6/3/2015
BG-1D(14-15) 6/3/2015
BG-1D(24-25) 6/3/2015
BG-1D(30-31) 6/3/2015
BG-1D(34-35) 6/3/2015
BG-1D(44-45) 6/3/2015
BG-2D (3.5-5) 6/13/2015
BG-2D (48-49) 6/15/2015
BG-2D (53-54) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(3-5) 6/13/2015
BG-3D(18.5-20) 6/13/2015
BG-3D(23-24) 6/13/2015
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS
36.4 UJ NA 257 J 376 U 364 U 5.4 J 795 J
33.6 UJ NA 336 U 336 U 336 U 4.7 J 815 U
31.6 UJ NA 281 J 305 U 316 U 5.2 J 1040
NA NA NA NA NA NA 1010 J-
NA NA NA NA NA NA 808 U
34.2 UJ NA 350 U 350 U 342 U 4.9 J 833 U
47.3 UJ NA 474 U 474 U 473 U 4.7 J 661 J
33.3 UJ NA 322 U 322 U 333 U 4.7 J 813 U
NA NA NA NA NA NA 566 J
NA 31.3 UJ 307 U 307 U 313 U 4.2 J 912
NA 37.2 UJ 980 203 J 372 U 8 J 53100
NA 31.2 UJ 704 201 J 312 U 7.7 J 5570
NA 28.9 UJ 282 U 282 U 289 U 5.3 J 823 J-
NA 35.3 UJ 239 J 354 U 200 J 4.8 J 949 J-
NA 31.8 UJ 324 U 324 U NA 5.9 J 502 J
NA 38.6 UJ 318 J 382 U 386 U 5.2 J 938 U
NA 33.3 UJ 229 J 329 U 333 U 6.4 J 1690
NA 34.6 UJ 226 J 354 U 222 J 4.8 J 3240 J
NA 34.4 UJ 356 U 356 U 344 U NA 3200 J-
NA 37.5 UJ 378 U 378 U 375 U 4.5 J 476 J-
NA 32.4 UJ 326 U 326 U 181 J 4.4 J 637 J-
NA 30.5 UJ 111 60.8 U 305 U 5.2 J 920
NA 34.8 UJ 557 83.4 348 U 5.2 J 10900
NA 41.1 UJ 1540 J+ 396 U 411 U 6.3 J 31900
NA NA NA NA NA NA 13800
NA 47.7 UJ 541 458 U 477 U 5.6 J 985 J
NA 42.6 UJ 388 J 419 U 426 U 5.6 J 860 J
NA NA NA NA NA NA 723 J
NA 34.4 UJ 3100 115 J+ 344 U 5.3 J 1490
NA 33.5 UJ 3040 109 J+ 335 U 5.7 J 1010
NA 32.3 UJ 148 J+ 68.5 U 214 J 4.5 J NA
NA 30.2 UJ 105 J+ 59.1 U 302 U 4.3 J NA
NA 30.2 UJ 294 61.9 J+ 173 J 5.1 J NA
NA NA NA NA NA NA 3550
NA NA NA NA NA NA 5170
NA NA NA NA NA NA 14300
NA NA NA NA NA NA 1620
NA 30.5 UJ 273 42.4 J 305 U 7.7 J 1290
NA 32.7 UJ 148 65.7 U 327 U 5.4 J 784 U
NA 32.1 UJ 325 U 325 U 321 U 4.6 J 448 J
NA 42.7 UJ 2580 414 U 427 U 5.6 J 1020 U
NA 39.4 UJ 6500 410 U 394 U 5 J 970 U
NA 33 UJ 5550 345 U 330 U 5.4 J 818 U
NA 40.2 UJ 4740 417 U 402 U 5.1 J 969 U
NA 35.3 UJ 3410 367 U 353 U 5.7 J 857 U
NA 30.1 UJ 1920 306 U 175 J- 6.1 J 1640 J-
NA 31.4 UJ NA NA NA 4.5 J 749 UJ
NA 36.5 UJ 6120 380 U 365 U 4.7 J 894 UJ
NA 37.9 UJ NA NA NA 4.8 J 948 UJ
NA 29.6 UJ NA NA NA 5.5 J 726 UJ
31.3 U NA 586 314 U 313 U 4.8 J 555 J
30.9 U NA 6450 307 U 309 U 6 J 752 U
31.8 U NA 6410 311 U NA 5.8 J 765 U
Page 7 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
BG-3D(27-28) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D (73-75) 6/13/2015
C-1D(13.5-15.0) 3/24/2015
C-1D(23.5-25.0) 3/24/2015
C-2D(18.5-20) 3/16/2015
C-2D(23.5-25) 3/16/2015
C-2S(30-35) 3/23/2015
GWA-10S (8-9) 6/17/2015
GWA-10S (13-14) 6/17/2015
GWA-10S (21-23) 6/17/2015
GWA-1D(28.5-30) 6/8/2015
GWA-1D(33.5-35) 6/8/2015
GWA-1S(42-47) 6/9/2015
GWA-20D(40-41.5) 6/14/2015
GWA-20D(45-46.5) 6/14/2015
GWA-21D (3.5-5) 7/15/2015
GWA-21D (8.5-10) 7/16/2015
GWA-21D (18.5-20) 7/16/2015
GWA-21D (48.5-50) 7/18/2015
GWA-21D (58.5-60) 7/18/2015
GWA-22D(38.5-40.0) 5/7/2015
GWA-22D(48.5-50.0) 5/7/2015
GWA-23D(33.5-35) 5/12/2015
GWA-23D(38.5-40) 5/12/2015
GWA-2D(38.5-40.0) 4/14/2015
GWA-2D(43.5-45.0) 4/14/2015
GWA-2D(43.5-45.0) 4/14/2015
GWA-2S(48-52) 4/16/2015
GWA-3D(18.5-19) 4/21/2015
GWA-4S (15-19) 6/21/2015
GWA-4S (24-26) 6/21/2015
GWA-4S (32-35) 6/21/2015
GWA-4S (34-36) 6/21/2015
GWA-5D(58.5-60) 4/10/2015
GWA-5D(68.5-70) 4/10/2015
GWA-5S(72-74) 4/14/2015
GWA-6D-1 (43.5-45) 3/4/2015
GWA-6D-2 (48.5-50) 3/4/2015
GWA-7D(13.5-15.0) 4/17/2015
GWA-7D(23.5-25.0) 4/17/2015
GWA-7S(7.0-8.0) 4/21/2015
GWA-7S(22.0-23.0) 4/21/2015
GWA-8D(8.5-10) 6/1/2015
GWA-8D(18.5-20) 6/1/2015
GWA-8D(19-20) 6/14/2015
GWA-9BR(14-17) 5/6/2015
GWA-9D(1) 5/5/2015
GWA-9D(3.5-5.0) 5/4/2015
MW-15D(3.5-5) 4/29/2015
MW-15D(13.5-15) 4/29/2015
MW-7BR(43.5-45) 4/24/2015
MW-7BR(53.5-55) 4/24/2015
Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS
30.7 U NA 8700 311 U 307 U 5.9 J 758 U
34.6 U NA 7120 354 U NA 6.5 J 835 U
NA 28.4 UJ 2760 286 U 284 UJ 6.1 J 683 UJ
NA 28 UJ 122 59.4 U 175 J 4 J 791
NA 27.5 UJ 5890 58.3 275 U 4.3 J 675 U
NA 35.9 UJ 137 73.9 J 219 J 3.8 J 506 J
NA 29.7 UJ 1340 58.1 U 297 U 3.8 J 707 U
NA NA NA NA NA NA 1900
NA 34.2 UJ 389 355 U 342 U 4.1 J 974 J-
NA 35.6 UJ 412 373 U 356 U 4.1 J 501 J-
NA NA NA NA NA NA 469 J-
35.9 U NA 290 J 378 U 359 U 5.2 J 896 U
43 U NA 780 425 U 430 U 6.2 J 1060 U
NA NA NA NA NA NA 603 J
32.5 U NA 182 J 321 U 325 U 4.8 J 795 U
32.1 U NA 3660 325 U 321 U 4.8 J 775 U
40.2 UJ NA 275 J 427 U 402 U 5 J 9440
29.4 UJ NA NA NA NA 5 J 603 J
36.9 UJ NA 368 UJ 368 UJ 369 U 5 J 897 U
30.2 UJ NA NA NA NA 5.2 J 741 U
32 UJ NA 325 U 325 U 320 U 5.2 J 789 U
NA 36.9 UJ 216 J 384 U 369 U 5.1 J 884 U
NA 34.6 UJ 225 J 341 U 346 U 4.9 J 836 U
NA 33.8 UJ 325 U 325 U 338 UJ 4.6 J 795 UJ
NA 33.2 UJ 708 337 U 332 UJ 4.7 J 800 UJ
NA 36.2 UJ 2050 352 U 362 U 6.3 J NA
NA NA NA NA NA NA 750 U
NA 27.7 UJ 13100 289 U 277 U 6.4 J 683 U
NA NA NA NA NA NA 902 J
NA 27.1 UJ 1960 290 U 271 UJ 7.2 J NA
NA 37.1 UJ NA NA NA 3.9 J 3480 J-
NA 33.2 UJ 4420 342 U 332 U 3.8 J 999 J-
NA 39.7 UJ 2820 412 U 397 U NA 956 UJ
NA 30 UJ 1450 301 U 300 U 5.9 J 723 UJ
NA 34.1 UJ 344 U 344 U 341 U 5.2 J 821 U
NA 38.9 UJ 399 U 399 U 389 U 5 J 808 J
NA NA NA NA NA NA 773 U
NA 35.3 UJ 105 J+ 68.1 U 353 U 5.4 J 848 U
NA 44.6 UJ 8320 156 J+ 446 U 5.5 J 1070 U
NA 33 UJ 296 J 354 U 330 U 6.5 J 1240
NA 34.7 UJ 427 347 U 347 U 6.7 J 834 U
NA 32.6 UJ 334 U 334 U 326 U 6 J 1020
NA NA NA NA NA NA 885 U
NA 32.5 UJ 331 U 331 U 325 U 5 J 457 J
NA 34.5 UJ 345 J 359 U 345 U 5.4 J 830 U
NA NA NA NA NA NA 1080 J
NA NA NA NA NA NA 1690
NA 35.8 UJ 346 J 349 U 358 U 4.9 J 5860
NA 33 UJ 420 326 U 330 U 4.9 J 1190
NA 38.1 UJ 1430 397 U 381 U 5.3 J 1670 J-
NA 43.4 UJ 4550 421 U 434 U 5.3 J 962 J-
NA 32.3 UJ 216 J+ 321 U 323 U 5.4 J 780 UJ
NA 36.9 UJ 3520 366 U 369 U 5.5 J 884 UJ
Page 8 of 9
Table 8-4. Soil Total Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
MW-9BR(10-12) 5/11/2015
MW-9D(3.5-5) 5/1/2015
OB-1(33.5-35.0) 4/16/2015
OB-1(43.5-45.0) 4/16/2015
OB-2(38.5-40.0) 4/14/2015
OB-2(48.5-50.0) 4/14/2015
Std. Units - pH units
Qualifier Notes:
U -- Not detected above the reporting detection
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS
NA NA NA NA NA NA 849
NA 43 UJ 1500 451 U 430 U 5.7 J 29700 J-
NA 35.2 UJ 361 U 361 U 352 UJ 5.1 J 844 U
NA 44.4 UJ 450 U 450 U 444 U 5.1 J 1050 U
NA 48.8 UJ 2440 474 U 488 U 5.5 J 922 U
NA 39.1 UJ 5360 394 U 391 U 5.4 J 893 U
Page 9 of 9
Table 8-5. PWR and Bedrock Totals Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150
Sample Name Sample Date
AB-8D(90-90.5) 4/21/2015 3660 5 U 5 U 46.3 12.5 U 0.25 U 0.6 U 3 3 J 3.1 5590
BG-2BR (166.4-166.5) 7/19/2015 5810 5.5 U 5.5 U 8.4 13.6 U 0.24 J 0.65 U 2.6 4.7 J 44.4 8950
BG-2D (159-160) 6/18/2015 10400 5.2 U 5.2 U 85.8 13 U 0.19 J 0.63 U 6.8 10.4 7.4 18800
GWA-10D (131.5-131.8) 7/14/2015 27800 5.1 U 5.1 U 9.7 12.7 U 0.16 J 0.61 U 1.2 J 5.1 U 1.3 U 2530
GWA-1BRU 66.0-66.3 6/15/2015 4360 5 U 5 U 61.5 12.4 U 0.25 U 0.59 U 3.3 3.5 J 3.3 6380
GWA-20BR (301.9-302.4) 7/20/2015 2300 5.2 U 5.2 U 73.4 13 U 0.29 0.63 U 1.3 U 29.8 7.6 8680
GWA-22BR (207-208) 7/20/2015 10200 J+ 5.2 UJ 5.2 U 12 J+ 13 U 0.32 0.63 U 2.6 5 J+4.5 8740 J+
GWA-22BR (277-278) 7/20/2015 13900 5.7 U 5.7 U 18.7 14.2 U 0.27 J 0.68 U 1.7 2.9 J 1.4 U 6160
GWA-23BR 241.4-241.6 6/14/2015 3270 5.3 U 5.3 U 35.5 13.3 U 0.27 U 0.64 U 2.6 3.4 J 14.1 7700
GWA-23BR (216-217) 7/14/2015 4210 5.2 U 5.2 U 60.5 12.9 U 0.24 J 0.62 U 2.2 26.7 21 20300
GWA-2BR(80-81.5) 4/29/2015 9330 4.8 U 4.8 U 147 11.9 U 0.24 U 0.57 U 9.2 16.7 40.5 17200
GWA-2D(30.0-31.5) 4/13/2015 31100 7.8 U 7.8 U 611 26.1 0.98 0.94 U 1.3 J 18.8 5.3 39700
GWA-3D(40-40.5) 4/23/2015 791 5.2 U 5.2 U 9.8 13.1 U 0.26 U 0.63 U 1.2 J 5.2 U 1.7 1540
GWA-4BR (121.5-122.1) 7/14/2015 813 5.6 U 5.6 U 12 14 U 0.28 U 0.67 U 1.4 U 5.6 U 3 1280
GWA-4D (118-119.5) 7/18/2015 2260 5.7 U 5.7 U 36 14.3 U 0.29 U 0.68 U 1.2 J 5.7 U 1.2 J 3970
GWA-5D(229.5-230.0) 4/14/2015 23900 5.9 U 5.9 U 117 14.7 U 0.25 J 0.7 U 240 37.8 23.9 30900
GWA-6D(161-164) 3/19/2015 12500 2.6 U 2.6 U 178 2.6 U 0.09 0.31 U 65.6 17.9 51.8 16800
GWA-7D(93.5-98.5) 6/2/2015 15200 5.5 U 5.5 U 65.2 13.7 U 0.27 U 0.66 U 17.2 15.6 59.9 13800
GWA-9BR 80.0-80.2 6/11/2015 776 5.2 U 5.2 U 2.6 UJ 12.9 U 0.26 U 0.62 U 2.7 7.3 31.9 2180
GWA-9D(50.5-51) 5/5/2015 12700 6.1 U 6.1 U 47.2 15.1 U 0.3 U 0.73 U 36 14.5 120 20700
MW-15BR 38.7-39.1 5/8/2015 1870 4.6 U 4.6 U 16.4 11.6 U 0.23 U 0.56 U 6.1 2.8 J 8.4 3230
MW-15D 40.5-40.7 5/15/2015 1520 5.4 U 5.4 U 16.8 13.5 U 0.27 U 0.65 U 1.6 9.2 12.3 3850
MW9BR 141.7-142.0 5/30/2015 587 2.6 U 2.6 U 3.4 6.4 U 0.13 U 0.31 U 0.38 J 2.6 U 3 1130
MW-9D(63.5-65) 5/1/2015 8310 7.1 U 7.1 U 65.8 12.1 J 0.4 0.85 U 8.3 7.1 U 10.4 14400
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Page 1 of 6
Table 8-5. PWR and Bedrock Totals Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
100000 94 3 44000 46000 460 200 100000 70 9400 100000
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Page 2 of 6
Table 8-5. PWR and Bedrock Totals Inorganic Results
Sample Name Sample Date
AB-8D(90-90.5) 4/21/2015
BG-2BR (166.4-166.5) 7/19/2015
BG-2D (159-160) 6/18/2015
GWA-10D (131.5-131.8) 7/14/2015
GWA-1BRU 66.0-66.3 6/15/2015
GWA-20BR (301.9-302.4) 7/20/2015
GWA-22BR (207-208) 7/20/2015
GWA-22BR (277-278) 7/20/2015
GWA-23BR 241.4-241.6 6/14/2015
GWA-23BR (216-217) 7/14/2015
GWA-2BR(80-81.5) 4/29/2015
GWA-2D(30.0-31.5) 4/13/2015
GWA-3D(40-40.5) 4/23/2015
GWA-4BR (121.5-122.1) 7/14/2015
GWA-4D (118-119.5) 7/18/2015
GWA-5D(229.5-230.0) 4/14/2015
GWA-6D(161-164) 3/19/2015
GWA-7D(93.5-98.5) 6/2/2015
GWA-9BR 80.0-80.2 6/11/2015
GWA-9D(50.5-51) 5/5/2015
MW-15BR 38.7-39.1 5/8/2015
MW-15D 40.5-40.7 5/15/2015
MW9BR 141.7-142.0 5/30/2015
MW-9D(63.5-65) 5/1/2015
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium
7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS
270 65 1 NS 130 2.1 NS 0.28 6 1200 NS
5 U 130 0.0076 UJ 2.5 U 3.2 5 U 4.9 5 U 11.4 13.6 1000
5.5 U 272 0.0084 U 2.7 UJ 2.6 5.5 U 13.9 5.5 U NA 24.7 4620
5.2 U 754 0.0084 U 2.6 U 6.4 5.2 U 15.8 5.2 U 30.4 50.2 2680
5.1 U 70.9 0.0083 U 2.5 UJ 0.65 J 5.1 U 179 5.1 U NA 6.4 25400
5 U 444 0.0083 U 3.5 3.4 5 U 2.8 5 U 16.4 19.6 579
5.2 U 825 0.0079 U 2.6 UJ 3.5 5.2 U 15.8 5.2 U NA 20.5 5030
5.2 UJ 253 J+0.0081 U 2.6 UJ 3.2 5.2 U 54 J+ 5.2 U NA 29.6 6970 J+
5.7 U 155 0.0084 U 2.8 UJ 1.8 5.7 U 78.7 5.7 U NA 19.2 10600
5.3 U 198 0.0083 U 2.7 U 3.9 5.3 U 14 5.3 U 11 19.1 1950
5.2 UJ 508 0.0083 U 2.6 UJ 4.2 5.2 U 31.6 5.2 U NA 25 3340
4.8 U 2660 0.0079 UJ 4.8 7 4.8 U 19.4 4.8 U 83.4 43.2 5080
7.8 U 1560 0.012 U 3.9 U 14.6 7.8 U 33.2 7.8 U 128 149 3330
5.2 U 83.8 0.0086 UJ 2.6 U 1.1 J 5.2 U 2.6 UJ 5.2 U 5.2 U 4.2 J 362
5.6 U 39.1 0.0084 U 2.8 UJ 1.4 U 5.6 U 2.8 UJ 5.6 U NA 7.5 320
5.7 U 91.7 0.011 U 2.9 UJ 1.2 J 5.7 U 2.3 J 5.7 U NA 13.3 883
5.9 U 1010 0.0092 U 2.9 U 103 5.9 U 153 5.9 U 52.2 105 8140
2.6 U 200 0.01 U 0.52 U 52.7 2.6 U 28.4 2.6 U 69.8 27.8 3530
5.5 U 234 0.0085 U 2.7 U 13.3 5.5 U 83.3 5.5 U 39.8 23.2 6870
5.2 U 18.7 0.0078 U 2.6 U 0.77 J 5.2 U 3.2 5.2 U 4.6 J 3.3 J 553
6.1 U 373 0.0097 U 3 U 10.1 6.1 U 25.4 6.1 U 61.8 39.3 4110
3.8 J 131 0.0085 UJ 2.3 U 1.9 4.6 U 2.8 4.6 U 4 J 6.8 631
5.4 U 67.1 0.0072 UJ 2.7 U 1.3 UJ 5.4 U 2.1 J 5.4 U 6.5 6.3 643
2.6 U 57.1 0.008 UJ 1.3 U 0.59 J 2.6 U 1.4 2.6 U 1.8 J 2.6 U 382
7.1 U 440 0.011 U 3.5 U 7.8 7.1 U 35 7.1 U 26.6 40 2460
Page 3 of 6
Table 8-5. PWR and Bedrock Totals Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium
7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS
270 65 1 NS 130 2.1 NS 0.28 6 1200 NS
Page 4 of 6
Table 8-5. PWR and Bedrock Totals Inorganic Results
Sample Name Sample Date
AB-8D(90-90.5) 4/21/2015
BG-2BR (166.4-166.5) 7/19/2015
BG-2D (159-160) 6/18/2015
GWA-10D (131.5-131.8) 7/14/2015
GWA-1BRU 66.0-66.3 6/15/2015
GWA-20BR (301.9-302.4) 7/20/2015
GWA-22BR (207-208) 7/20/2015
GWA-22BR (277-278) 7/20/2015
GWA-23BR 241.4-241.6 6/14/2015
GWA-23BR (216-217) 7/14/2015
GWA-2BR(80-81.5) 4/29/2015
GWA-2D(30.0-31.5) 4/13/2015
GWA-3D(40-40.5) 4/23/2015
GWA-4BR (121.5-122.1) 7/14/2015
GWA-4D (118-119.5) 7/18/2015
GWA-5D(229.5-230.0) 4/14/2015
GWA-6D(161-164) 3/19/2015
GWA-7D(93.5-98.5) 6/2/2015
GWA-9BR 80.0-80.2 6/11/2015
GWA-9D(50.5-51) 5/5/2015
MW-15BR 38.7-39.1 5/8/2015
MW-15D 40.5-40.7 5/15/2015
MW9BR 141.7-142.0 5/30/2015
MW-9D(63.5-65) 5/1/2015
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Chloride Magnesium Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
16887-00-6 7439-95-4 14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
NS NS 100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS NS NS
256 UJ 2800 NA 25.6 UJ 2390 251 U 256 UJ 8.3 J NA
252 U 3830 25.2 UJ NA 293 273 U 252 U 7.5 J NA
265 U 8560 26.5 UJ NA 2770 257 J 265 U 8.2 J 650 U
239 U 1120 23.9 UJ NA 1080 254 U 239 U 7.7 J NA
251 U 4330 25.1 UJ NA 3810 248 U 251 U 9.1 J NA
245 U 936 24.5 UJ NA 133 J 261 U 245 U 7.4 J NA
253 U 3040 J+ 25.3 UJ NA 218 J 261 U 253 U 8.3 J NA
269 U 1890 26.9 UJ NA 291 283 U 269 U 7.2 J NA
262 U 2880 26.2 UJ NA 219 J 266 U 262 U 7.2 J NA
256 U 2530 25.6 UJ NA 252 J 258 U 256 U 7.4 J NA
249 UJ 8300 NA 24.9 UJ 5490 238 U 249 UJ 8.5 J NA
382 U 23200 NA 38.2 UJ 10400 391 U 382 U 5.8 J 740 U
257 UJ 624 NA 25.7 UJ 471 262 U 257 UJ 7.5 J NA
249 U 618 24.9 UJ NA 572 280 U 249 U 7.2 J NA
249 U 1860 24.9 UJ NA 1750 285 U 249 U 7.2 J NA
287 U 27600 NA 28.7 UJ 294 U 294 U 287 U 7.1 J 708 U
257 U 8260 NA 25.7 UJ 3290 148 257 U 7.6 J 626 U
268 U 7230 NA 26.8 UJ 290 599 268 U 6.6 J NA
254 U 756 25.4 UJ NA 258 U 258 U 254 U 6.9 J NA
304 U 9890 NA 30.4 UJ 262 J 164 J 304 U 6.4 J 729 U
260 UJ 1620 26 UJ NA 188 J 232 U 260 UJ 7.2 J NA
362 UJ 1290 36.2 UJ NA 837 269 U 362 UJ 7.1 J NA
264 UJ 548 26.4 UJ NA 128 U 128 U 264 UJ 7.2 J NA
343 U 5660 NA 34.3 UJ 439 354 U 343 U 6.9 J 832 UJ
Page 5 of 6
Table 8-5. PWR and Bedrock Totals Inorganic Results
Sample Name Sample Date
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
Std. Units - pH units
Qualifier Notes:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by analytical
NS - No applicable standard for this parameter
Shading indicates exceedance of either applicable
criteria.
General Notes:
North Carolina Department of Environment and
Natural Resources Division of Waste Management
Soil Remediation Goals Table (March 2015) -
Preliminary Industrial Health Based Soil
Remediation Goal (PSRG) and Protection of
Groundwater PSRG.
**Note: No PSRG for Total Chromium is currently
available, as a surrogate the PSRG for Trivalent
Chromium was used for comparison purposes
only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
limit.
bold - indicates exceedance of NCDENR Industrial
Health Based PSRG
Italic/underline - indicates exceedance of NCDENR
Protection of Groundwater PSRG
Comparison Criteria:
Chloride Magnesium Nitrate Nitrogen Potassium Sodium Sulfate pH (field)
Total Organic
Carbon
16887-00-6 7439-95-4 14797-55-8 7727-37-9 7440-09-7 7440-23-5 14808-79-8 PH TOC
mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg
NS NS 100000 NS NS NS NS NS NS
NS NS NS NS NS NS NS NS NS
Page 6 of 6
Table 8-6. Background Soil SPLP Results
Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Iron Lead
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1
TTTTTTTTTTTT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS 10 700 NS 700 2 10 NS 1000 300 15
NS 1 NS NS 4 NS NS NS 1 NS NS NS
Sample Name Sample Date
BG-2D (48-49) 6/15/2015 100 U 5 U 5 U 2.7 J+ 2 U 13.7 J+ 0.8 U 5 U 5 U 10 U 500 U 1 U
BG-2D (60-62) 6/15/2015 100 U 5 U 5 U 5.1 J+ 2 U 13 J+ 0.8 U 5 U 5 U 10 U 500 U 1 U
BG-2D (74-75) 6/15/2015 597 J 5 U 5 U 6.9 J+ 2 U 47.8 J+ 0.8 U 5 U 5 U 10 U 229 J 1 U
BG-3D(23-24) 6/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA
BG-3D(34-35.5) 6/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA
BG-3D(23-24) 6/13/2015 2330 0.5 U 0.25 J 135 0.15 J 59.8 0.094 1.7 J+ 0.51 J+ 12.2 386 J+0.76
BG-3D(34-35.5) 6/13/2015 4910 J 0.24 J 0.36 J 143 0.39 54.9 0.27 4.6 J+0.72 J+ 3.5 J+796 J+0.84
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where
there is no applicable 02L standard.
Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards
Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were
issued in 2010 and 2011, however NCDENR
has not established a 02L standard for these
constituents as described in 15A NCAC
02L.0202(c). For this reason, IMACs are
noted in this report for reference only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Page 1 of 3
Table 8-6. Background Soil SPLP Results
Sample Name Sample Date
BG-2D (48-49) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where
there is no applicable 02L standard.
Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards
Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were
issued in 2010 and 2011, however NCDENR
has not established a 02L standard for these
constituents as described in 15A NCAC
02L.0202(c). For this reason, IMACs are
noted in this report for reference only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium
7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4
TTTTTTTTTTNT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
50 1 NS 100 20 NS NS NS 1000 NS 250000 NS
NS NS NS NS NS NS 0.2 0.3 NS NS NS NS
5 U 0.2 UJ 5 U 5 U 5 U 1.9 J 1 U 10 U 50 U 249 J 6300 UJ 108 J+
5 U 0.2 UJ 5 U 5 U 5 U 5.3 1 U 10 U 50 U 586 7800 UJ 163 J+
24.3 0.2 UJ 5 U 5 U 5 U 5 U 1 U 10 U 50 U 400 U 6000 UJ 85.9 J+
NA NA NA NA NA NA NA NA NA NA 6300 U NA
NA NA NA NA NA NA NA NA NA NA 6900 U NA
21.7 J+ 0.2 U 0.28 J 1.4 J+ 0.5 U 6.4 J+ 0.097 J 1.8 50.5 J+ 264 J+ NA 82.7 J+
46.3 0.2 U 0.78 2.7 J+ 0.33 J 10.1 J+0.28 3.6 78.1 J+ 432 J+ NA 176 J+
Page 2 of 3
Table 8-6. Background Soil SPLP Results
Sample Name Sample Date
BG-2D (48-49) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where
there is no applicable 02L standard.
Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards
Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were
issued in 2010 and 2011, however NCDENR
has not established a 02L standard for these
constituents as described in 15A NCAC
02L.0202(c). For this reason, IMACs are
noted in this report for reference only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Nitrate Potassium Sodium Sulfate pH (field)
14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH
NTTNN
ug/l ug/l ug/l ug/l Std. Units
10000 NS NS 250000 8.5
NS NS NS NS NS
920 J 428 J 882 J+ 2600 J 4.5 J
1100 J 437 J 1110 J+ 4300 J 4.8 J
410 J 224 J 3090 J+ 3500 J 5.5 J
250 UJ NA NA 2500 UJ 5.8 J
280 UJ NA NA 2900 J+ 6.5 J
NA 299 J+ 2080 NA NA
NA 378 J+ 2030 NA NA
Page 3 of 3
Table 8-7. Soil SPLP Sample Results
Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-96-5 7439-97-6
TTTTTTTTTTTTTT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS NS 10 700 NS 700 2 10 NS 1000 300 15 50 1
NS 1 NS NS 4 NS NS NS 1 NS NS NS NS NS
Sample Name Sample Date
AB-1D (83.5-85) 6/17/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-1D (83.5-85) SPLP 6/17/2015 2050 0.5 U 0.5 U 219 0.2 U 80.8 0.08 U 2.3 J+ 0.56 2.8 J+1950 J+0.21 J+ 26.1 J+ 0.04 J+
AB-1S (63-65) 6/23/2015 100 U 5 U 5 U 1.2 J 2 U 16.7 J+ 0.8 U 5 U 5 U 10 U 500 U 1 U 12.3 0.2 UJ
AB-3D(48.5-50) 4/14/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-3D(48.5-50) 4/14/2015 2020 3.4 98.8 224 0.2 U 158 0.035 J 4.7 0.46 J 9.7 756 J+1.7 8.2 J+ 0.2 U
AB-4D(58.5-61.5) 5/5/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-4D(58.5-61.5) 5/5/2015 4090 0.5 U 0.2 J 105 0.1 J 67 0.08 U 3.3 1.3 6.5 8450 0.27 38 0.2 U
BG-2D (48-49) 6/15/2015 100 U 5 U 5 U 2.7 J+ 2 U 13.7 J+ 0.8 U 5 U 5 U 10 U 500 U 1 U 5 U 0.2 UJ
BG-2D (60-62) 6/15/2015 100 U 5 U 5 U 5.1 J+ 2 U 13 J+ 0.8 U 5 U 5 U 10 U 500 U 1 U 5 U 0.2 UJ
BG-2D (74-75) 6/15/2015 597 J 5 U 5 U 6.9 J+ 2 U 47.8 J+ 0.8 U 5 U 5 U 10 U 229 J 1 U 24.3 0.2 UJ
BG-3D(23-24) 6/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
BG-3D(34-35.5) 6/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
BG-3D(23-24) 6/13/2015 2330 0.5 U 0.25 J 135 0.15 J 59.8 0.094 1.7 J+ 0.51 J+ 12.2 386 J+0.76 21.7 J+ 0.2 U
BG-3D(34-35.5) 6/13/2015 4910 J 0.24 J 0.36 J 143 0.39 54.9 0.27 4.6 J+ 0.72 J+ 3.5 J+796 J+0.84 46.3 0.2 U
GWA-21D (48.5-50) 7/18/2015 500 U 25 U 25 U 5.4 J 10 U 250 UJ 4 U 25 U 25 U 50 U 2500 U 5 U 12 J 0.6 U
GWA-21D (8.5-10) 7/16/2015 262 J+ 25 U 25 U 500 UJ 10 U 250 UJ 4 U 25 UJ 25 U 50 UJ 2500 UJ 5 UJ 25 UJ 0.6 U
GWA-4S (15-19) 6/21/2015 118 5 U 5 U 11.5 J 2 U 30.9 J+ 0.8 U 5 U 6.5 10 U 173 J 1 U 73 0.2 UJ
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in
2010 and 2011, however NCDENR has not
established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference
only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Page 1 of 3
Table 8-7. Soil SPLP Sample Results
Sample Name Sample Date
AB-1D (83.5-85) 6/17/2015
AB-1D (83.5-85) SPLP 6/17/2015
AB-1S (63-65) 6/23/2015
AB-3D(48.5-50) 4/14/2015
AB-3D(48.5-50) 4/14/2015
AB-4D(58.5-61.5) 5/5/2015
AB-4D(58.5-61.5) 5/5/2015
BG-2D (48-49) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
GWA-21D (48.5-50) 7/18/2015
GWA-21D (8.5-10) 7/16/2015
GWA-4S (15-19) 6/21/2015
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in
2010 and 2011, however NCDENR has not
established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference
only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium Nitrate Potassium Sodium Sulfate
7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8
TTTTTTTTNTNTTN
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS 100 20 NS NS NS 1000 NS 250000 NS 10000 NS NS 250000
NS NS NS NS 0.2 0.3 NS NS NS NS NS NS NS NS
NA NA NA NA NA NA NA NA 5000 U NA 200 U NA NA 3200
0.22 J+ 2.9 J+ 0.5 U 9.8 0.1 U 3.8 42 J+ 669 J+ NA 813 NA 418 J+ 1900 J+ NA
5 U 5 U 5 U 5 U 1 U 10 U 50 U 185 J 5000 UJ 106 210 J 500 U 861 J+ 2100 J
NA NA NA NA NA NA NA NA 5000 U NA 200 UJ NA NA 6800 J+
6.9 1.4 J+ 17.6 217 0.091 J 75.6 15.2 J+ 8300 NA 434 NA 211 J+ 1300 NA
NA NA NA NA NA NA NA NA 6300 U NA 330 J NA NA 5400 J+
0.5 U 7.9 0.5 U 10.3 0.1 U 12.5 45.1 1080 NA 1160 NA 301 1190 NA
5 U 5 U 5 U 1.9 J 1 U 10 U 50 U 249 J 6300 UJ 108 J+ 920 J 428 J 882 J+ 2600 J
5 U 5 U 5 U 5.3 1 U 10 U 50 U 586 7800 UJ 163 J+ 1100 J 437 J 1110 J+ 4300 J
5 U 5 U 5 U 5 U 1 U 10 U 50 U 400 U 6000 UJ 85.9 J+ 410 J 224 J 3090 J+ 3500 J
NA NA NA NA NA NA NA NA 6300 U NA 250 UJ NA NA 2500 UJ
NA NA NA NA NA NA NA NA 6900 U NA 280 UJ NA NA 2900 J+
0.28 J 1.4 J+ 0.5 U 6.4 J+ 0.097 J 1.8 50.5 J+ 264 J+ NA 82.7 J+ NA 299 J+ 2080 NA
0.78 2.7 J+ 0.33 J 10.1 J+0.28 3.6 78.1 J+ 432 J+ NA 176 J+ NA 378 J+ 2030 NA
25 UJ 25 U 25 U 25 U 5 U 50 U 250 U 2000 U 6200 U 500 U 360 2500 U 3080 J+ 2000 J
25 UJ 25 UJ 25 U 25 UJ 5 U 50 U 250 UJ 2000 UJ 6100 U 500 UJ 320 2500 UJ 2500 UJ 1700 J
5 U 2.6 J 5 U 39.2 1 U 10 U 50 U 2850 7700 UJ 2040 380 J 660 1810 J+ 28600 J
Page 2 of 3
Table 8-7. Soil SPLP Sample Results
Sample Name Sample Date
AB-1D (83.5-85) 6/17/2015
AB-1D (83.5-85) SPLP 6/17/2015
AB-1S (63-65) 6/23/2015
AB-3D(48.5-50) 4/14/2015
AB-3D(48.5-50) 4/14/2015
AB-4D(58.5-61.5) 5/5/2015
AB-4D(58.5-61.5) 5/5/2015
BG-2D (48-49) 6/15/2015
BG-2D (60-62) 6/15/2015
BG-2D (74-75) 6/15/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
BG-3D(23-24) 6/13/2015
BG-3D(34-35.5) 6/13/2015
GWA-21D (48.5-50) 7/18/2015
GWA-21D (8.5-10) 7/16/2015
GWA-4S (15-19) 6/21/2015
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
General Notes:
shading + bold - indicates exceedance of
NC 2L or IMAC Criteria.
North Carolina Department of Environment
and Natural Resources Division of Water
Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable
Concentrations (IMACs). April 2013
*NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in
2010 and 2011, however NCDENR has not
established a 02L standard for these constituents as
described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference
only.
Qualifier Notes:pg
detection limit.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
ug/l - micrograms per liter
NS - No applicable standard for this
parameter
NA - Not analyzed or not reported by
T - Total
D - Dissolved
IMAC*
N - Fraction not applicable
Comparison Criteria:
pH (field)
PH
N
Std. Units
8.5
NS
NA
NA
NA
8 J
NA
5.9 J
NA
4.5 J
4.8 J
5.5 J
5.8 J
6.5 J
NA
NA
5.2 J
5 J
3.9 J
Page 3 of 3
Table 8-8. Frequency and Concentration Ranges in Soil for COI Exceedances of North
Carolina PSRGs
Constituent of
Interest
NC Industrial
PSRG
NC
Protection of
GW PSRG
No. of Borings >
NC PSRGs*
Concentration Range of
Exceedances (in mg/kg)
Arsenic 3 5.8 1 S
7 D
35.1 (AB-7S)
3.5J (AB-5D,GWA-9D) to 33.8 (AB-3D)
Boron 46,000 45 1 S 50 to 51.7 (AB-8S)
Cobalt 70 0.9 6 S
25 D
1 BR
3.1J (GWA-4S) to 75 (AB-4S)
3.1J (C-2D) to 102 (GWA-8D)
7.3J to 14.7 (MW-7BR)
Iron 100,000 150 8 S
26 D
1 BR
4,950 (AB-4S) to 58,900 (GWA-7S)
5,230 (GWA-23D) to 109,000 (GWA-9D)
12,300J to 21,000 (MW-7BR)
Manganese 5,200 65 8 S
25 D
1 BR
158 (AB-7S) to 1,950 (AB-4S,OB-2)
77.7 (GWA-22D) to 3,320 (AB-4D)
615 to 446J (MW-7BR)
Nickel 4,400 130 2 D 151 (GWA-8D) to 167 (AB-4D)
Selenium 1,200 2.1 2 S
1 D
2.4J (AB-7S) to 5.6J (GWA-4S)
4.7J (BG-1D)
Vanadium 1,200 6 8 S
25 D
1 BR
17.3 (GWA-4S) to 145 (AB-8S)
7J (GWA-22D) to 148 (GWA-9D)
29.2 to 58.5 (MW-7BR)
Note: For the “No. of Borings > North Carolina PSRGs” column, data reported represents borings, not individual
samples within a given boring; exceedances of both Industrial and Protection of Groundwater PSRGs have
been counted.

Table 8-9. Frequency and Concentration Ranges in PWR and Bedrock for COI
Exceedances of North Carolina PSRGs
Constituent of
Interest
NC Industrial
PSRG
NC
Protection of
GW PSRG
No. of Borings >
NC PSRGs*
Concentration Range of
Exceedances (in mg/kg)
Barium 44,000 580 1 D 611 (GWA-2D)
Cobalt 70 0.9 8 D
12 BR
3J (AB-8D) to 37.8 (GWA-5D)
2.6J (MW-7BR) to 29.8 (GWA-20BR)
Iron 100,000 150 12 D
14 BR
1,540 (GWA-3D) to 39,700 (GWA-2D)
1,130 (MW-9BR) to 20,300 (GWA-23BR)
Manganese 5,200 65 12 D
11 BR
67.1 (MW-15D) to 1,560 (GWA-2D)
80.1 (MW-7BR) to 2,660 (GWA-2BR)
Vanadium 1,200 6 9 D
5 BR
6.5 (MW-15D) to 128 (GWA-2D)
8.5 (MW-7BR) to 83.4 (GWA-2BR)
Note:
For the “No. of Borings > North Carolina PSRGs” column, data reported represents borings, not individual samples
within a given boring; exceedances of both Industrial and Protection of Groundwater PSRGs have been counted.

Table 8-10. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – Soil Beneath Ash Basin and Within Waste Boundary
Constituent
Background
Soil Concentrations
(Range, mg/kg)
Soil Concentrations
Beneath the Ash Basin
(Range, mg/kg)
Arsenic 5.5J to <8.3 1.6J to 35.1
Boron 12J to <20.8 2J to 54.3
Cobalt 5J to 22.8 <3 to 75
Iron 12,300J to 36,500 7,220 to 71,900
Manganese 11.4 to 1,440 6.8J to 3,320
Nickel 1.3J to 8.5 0.44J+ to 167
Selenium 4.7J to <8.3 2.4J to <9.5
Vanadium 29.2 to 89.2 18.1 to 161J+
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-11. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – Soil Beneath Ash Storage Area
Constituent
Background
Soil Concentrations
(Range, mg/kg)
Soil Concentrations
Beneath the Ash Storage
Area
(Range, mg/kg)
Arsenic 5.5J to <8.3 2.4J to 10.9
Cobalt 5J to 22.8 3.7 to 18.6
Iron 12,300J to 36,500 5,230 to 16,600
Manganese 11.4 to 1,440 85 to 793
Vanadium 29.2 to 89.2 9.9 to 46
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-12. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – Soil Beneath Cinder Storage Area
Constituent
Background
Soil Concentrations
(Range, mg/kg)
Soil Concentrations
Beneath the Cinder
Storage Area
(Range, mg/kg)
Cobalt 5J to 22.8 <3 to 14
Iron 12,300J to 36,500 6,380 to 39,000
Manganese 11.4 to 1,440 20.5 to 242
Vanadium 29.2 to 89.2 15.2 to 40.1
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-13. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – Soil Outside Waste Boundary and Within Compliance
Boundary
Constituent
Background
Soil Concentrations
(Range, mg/kg)
Soil Concentrations
Outside Waste Boundary
and within Compliance
Boundary
(Range, mg/kg)
Arsenic 5.5J to <8.3 <3.4 to 12.2
Barium 17.7J to 282 2.5J+ to 611
Cobalt 5J to 22.8 3.1J to 102
Iron 12,300J to 36,500 4,950 to 109,000
Manganese 11.4 to 1,440 68.4 to 2,940
Nickel 1.3J to 8.5 1.1J to 151
Selenium 4.7J to <8.3 <3.4 to <9.5
Vanadium 29.2 to 89.2 7J to 209
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-14. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – PWR and Bedrock Beneath Ash Basin and Within Waste
Boundary
Constituent
Background PWR and
Bedrock Concentrations
(Range, mg/kg)
PWR and Bedrock Concentrations
Beneath Ash Basin and within the
Waste Boundary
(Range, mg/kg)
Cobalt 2.6J to 10.4 3J
Iron 1,130 to 18,800 5,590
Manganese 57.1 to 754 130
Vanadium 1.8J to 30.4 11.4
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-15. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – PWR and Bedrock BeneathAsh Storage Area
Constituent
Background PWR and
Bedrock Concentrations
(Range, mg/kg)
PWR and Bedrock Concentrations
Beneath Ash Storage Area
(Range, mg/kg)
Cobalt 2.6J to 10.4 3.4J to 26.7
Iron 1,130 to 18,800 7,700 to 20,300
Manganese 57.1 to 754 198 to 508
Vanadium 1.8J to 30.4 11
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 8-16. Range of Constituent Concentrations and Comparison to Range of Reported
Background Concentrations – PWR and Bedrock Outside the Waste Boundary and
Within Compliance Boundary
Constituent
Background PWR and
Bedrock Concentrations
(Range, mg/kg)
PWR and Bedrock Concentrations
Outside the Waste Boundary and
within Compliance Boundary
(Range, mg/kg)
Cobalt 2.6J to 10.4 <2.6 to 37.8
Iron 1,130 to 18,800 1,130 to 39,700
Manganese 57.1 to 754 18.7 to 2,660
Vanadium 1.8J to 30.4 1.8J to 128
Notes:
1. mg/kg = milligrams per kilogram
2. J = Estimated concentration
3. < = Not detected above the reporting detection limit

Table 9-1. Surface Water Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron Cadmium Cadmium
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 7440-43-9 7440-43-9
DTDTDTDTDTDTDT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
87 87 5.6 5.6 10 10 1000 1000 6.5 6.5 NS NS 0.15 0.15
NS NS NS NS 10 10 700 700 NS NS 700 700 2 2
NS NS 1 1 NS NS NS NS 4 4 NS NS NS NS
Sample Name Sample Date
Background
S-13 7/7/2015 100 U 130 0.5 U 0.5 U 0.19 J 0.3 J 16 17 0.2 U 0.2 U 50 U 50 U 0.08 U 0.08 U
Sidegradient
RBSW001 7/9/2015 100 U 57 J 0.5 U 0.2 J 1.1 1.5 12 13 0.2 U 0.2 U 50 U 50 U 1.9 2
RBSW002 7/9/2015 120 230 0.16 J 0.5 UJ 1.1 1.3 29 31 0.2 U 0.2 U 39 J 38 J 0.3 0.32
Downgradient
S-4 7/3/2015 NA NA 0.5 U 0.5 U 0.5 U 0.5 U 35 37 0.2 U 0.2 U 380 380 0.08 U 0.08 U
S-6 6/25/2015 100 U 110 0.5 U 0.5 U 0.5 U 0.13 J 26 38 0.2 U 0.2 U 170 160 0.08 U 0.08 U
S-7 7/3/2015 NA NA 0.5 U 0.5 U 0.5 U 0.38 J 11 100 0.2 U 0.1 J 55 60 0.08 U 0.08 U
S-8 7/3/2015 NA NA 0.5 U 0.5 U 0.12 J 0.21 J 17 18 0.2 U 0.2 U 50 U 50 U 0.08 U 0.08 U
SW-3 6/25/2015 100 U 310 0.5 U 0.5 U 0.93 2.4 58 76 0.2 U 0.2 U 500 530 0.08 U 0.033 J
General Notes:
ug/l - micrograms per
liter
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
NA - Not analyzed or not reported by analytical
laboratory
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for
reference only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
Page 1 of 5
Table 9-1. Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
Background
S-13 7/7/2015 100 U
Sidegradient
RBSW001 7/9/2015 100 U
RBSW002 7/9/2015 120
Downgradient
S-4 7/3/2015 NA
S-6 6/25/2015 100 U
S-7 7/3/2015 NA
S-8 7/3/2015 NA
SW-3 6/25/2015 100 U
General Notes:
ug/l - micrograms per
liter
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
NA - Not analyzed or not reported by analytical
laboratory
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for
reference only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury
7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6
DTDTDTDTDTDTD
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
24 24 3 3 2.7 2.7 NS NS 0.54 0.54 NS NS NS
10 10 NS NS 1000 1000 300 300 15 15 50 50 1
NS NS 1 1 NS NS NS NS NS NS NS NS NS
0.28 J 0.41 J 0.5 U 0.24 J 0.95 J 0.92 J 230 1600 0.1 U 0.13 79 110 NA
0.5 U 0.7 0.41 J 0.43 J 34.2 35.9 50 U 89 0.34 1.5 20 20 0.2 U
1.3 1.1 0.22 J 0.27 J 10.2 9.8 120 330 0.58 0.89 27 32 0.2 U
0.34 J 0.37 J 2.1 2.8 0.42 J 0.4 J NA NA 0.1 U 0.11 440 460 NA
0.23 J 1.1 6.3 9.6 1 U 0.3 J 120 2200 0.1 U 0.13 3900 4300 0.2 U
0.6 10.4 0.26 J 11.7 0.54 J 2.9 NA NA 0.1 U 1.1 98 2300 J+NA
0.63 0.33 J 0.5 U 0.28 J 0.9 J 0.8 J NA NA 0.1 U 0.15 40 92 NA
0.28 J 0.38 J 0.41 J 0.61 0.3 J 0.86 J 50 U 810 0.1 U 0.58 320 370 0.2 U
Page 2 of 5
Table 9-1. Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
Background
S-13 7/7/2015 100 U
Sidegradient
RBSW001 7/9/2015 100 U
RBSW002 7/9/2015 120
Downgradient
S-4 7/3/2015 NA
S-6 6/25/2015 100 U
S-7 7/3/2015 NA
S-8 7/3/2015 NA
SW-3 6/25/2015 100 U
General Notes:
ug/l - micrograms per
liter
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
NA - Not analyzed or not reported by analytical
laboratory
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for
reference only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium
7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2
TDTDTDTDTDTDT
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
NS 160 160 16 16 NS NS 14000 14000 0.24 0.24 NS NS
1 NS NS 100 100 20 20 NS NS NS NS NS NS
NS NS NS NS NS NS NS NS NS 0.2 0.2 0.3 0.3
0.000843 J+ 0.13 J 0.15 J 0.5 UJ 0.18 J 0.5 U 0.5 U 79 79 0.1 U 0.1 U 0.52 J 1.4
0.2 UJ 0.28 J 0.28 J 0.89 1.2 36.4 35.4 23 23 0.036 J 0.1 U 0.79 J 0.97 J
0.2 U 1 0.98 1.3 1.1 6.9 6 120 120 0.019 J 0.1 U 2.4 2.8
0.00266 0.5 U 0.5 U 0.84 0.76 0.5 U 0.5 U 45 46 0.1 U 0.1 U 0.37 J 0.61 J
0.2 U 0.23 J 0.5 U 1.4 2.3 0.5 U 0.5 U 30 33 0.1 U 0.1 U 1 U 0.68 J
0.00114 0.099 J 0.5 U 1.4 10.5 0.5 U 0.5 U 20 28 0.1 U 0.023 J 0.41 J 6.2
0.0021 0.13 J 0.096 J 0.38 J 0.18 J 0.5 U 0.5 U 83 82 0.1 U 0.1 U 0.59 J 1.5
0.2 U 11 10.8 2.7 3 0.34 J 0.43 J 960 1200 0.15 0.22 1 U 1.2
Page 3 of 5
Table 9-1. Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
Background
S-13 7/7/2015 100 U
Sidegradient
RBSW001 7/9/2015 100 U
RBSW002 7/9/2015 120
Downgradient
S-4 7/3/2015 NA
S-6 6/25/2015 100 U
S-7 7/3/2015 NA
S-8 7/3/2015 NA
SW-3 6/25/2015 100 U
General Notes:
ug/l - micrograms per
liter
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
NA - Not analyzed or not reported by analytical
laboratory
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for
reference only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium Methane
Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate
7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8
DTNNNTNTNNTTN
ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l
36 36 NS NS NS NS 230000 NS NS NS NS NS 250000
1000 1000 NS NS NS NS 250000 NS NS NS NS NS 250000
NS NS NS NS NS NS NS NS NS NS NS NS NS
4.8 J 3 J 39600 5000 U 39600 8540 1200 2580 27.3 79 5000 U 6960 1000 U
790 750 2500 J 5000 U 2500 J 3530 1000 U 324 2.7 J 1200 5000 U 5000 U 4700
140 140 24600 5000 U 24600 12700 4100 2720 0.81 J+ 990 2810 J 5480 18400
10 U 10 U 25500 5000 U 25500 7990 6500 6800 1.2 J+ 96 5000 U 6840 25400
10 U 10 U 30200 5000 U 30200 J- 4730 6600 7590 4.8 J+ 45 5000 U 7160 24500
10 U 22 22400 5000 U 22400 3420 6100 5980 1.5 J+ 12 J 5000 U 5000 U 1400
4.1 J 10 U 43100 5000 U 43100 8520 1300 2730 4.6 J+ 1500 5000 U 6830 1000 U
210 220 106000 5000 U 106000 57000 5500 14400 6.2 J+ 290 9310 10800 119000
Page 4 of 5
Table 9-1. Surface Water Sample Results
Aluminum
7429-90-5
D
ug/l
87
NS
NS
Sample Name Sample Date
Background
S-13 7/7/2015 100 U
Sidegradient
RBSW001 7/9/2015 100 U
RBSW002 7/9/2015 120
Downgradient
S-4 7/3/2015 NA
S-6 6/25/2015 100 U
S-7 7/3/2015 NA
S-8 7/3/2015 NA
SW-3 6/25/2015 100 U
General Notes:
ug/l - micrograms per
liter
T - Total
D - Dissolved
N - Fraction not
applicable
Comparison
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 15A
NCAC 02B Surface Water Standards and Protective
Values & EPA National Recommended Water
Quality Criteria.
NA - Not analyzed or not reported by analytical
laboratory
Shading+Italic/underline - indicates exceedance of NC
2L or IMAC Criteria.
North Carolina Department of Environment and
Natural Resources Division of Water Resources 02L
Groundwater Quality Standards and Interim
Maximum Allowable Concentrations (IMACs). April
2013
shading + bold - indicates exceedance of NC 02B
Surface Water Criteria
NS - No applicable standard for this parameter
U -- Not detected above the reporting detection limit.
**NOTE: The IMAC value is shown where there is no
applicable 02L standard. Appendix #1 of 15A NCAC
Subchapter 02L Classifications and Water Quality
Standards Applicable to the Groundwaters of North
Carolina , lists Interim Maximum Allowable Concentrations
(IMACs). The IMACs were issued in 2010 and 2011,
however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c).
For this reason, IMACs are noted in this report for
reference only.
*NOTE for the purposes of comparison, the lowest
value of the Water Supply, Human Health, or
Freshwater Aquatic Life criteria was referenced in
this table.
IMAC**
Analyte
CAS RN
FRACTION
Result Unit
NC 2B Surface Water (Lowest of AL, HH, WS)*
15A NCAC 02L STANDARD
Sulfide Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
18496-25-8 TOC TDS TSS
NNNN
ug/l ug/l ug/l ug/l
NS NS NS NS
NS NS 500000 NS
NS NS NS NS
100 U 2100 83000 7000
100 U 2800 32000 2500 U
100 U 3500 92000 8900
100 U 690 J 70000 5600 U
100 U 970 J 79000 2500 U
100 U 640 J 29000 146000
100 U 2000 62000 8100
100 U 2700 332000 2500 U
Page 5 of 5
9.
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Page 1 of 1
Table 9.3. Sediment Total Inorganic Results
Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese Mercury
7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-96-5 7439-97-6
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
100000 94 3 44000 46000 460 200 100000 70 9400 100000 800 5200 8
NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270 65 1
Sample Name Sample Date
S-1 7/6/2015 11800 11.8 U 11.8 U 144 29.6 U 0.89 1.4 U 21 15.5 14.1 34600 10.5 J 257 0.047
S-2 7/6/2015 8990 13.6 U 11.2 J 169 34.1 U 0.87 1.6 U 16.5 124 48.8 25400 9.8 J 2560 0.061
S-3 7/6/2015 6860 J 8.9 UJ 8.9 UJ 144 13.1 J 1 1.1 U 25.2 346 43.3 28500 9.1 1870 0.32
S-4 7/3/2015 9870 17.8 U 17.8 U 245 30.4 J 0.69 J 2.1 U 51.5 162 24.5 58000 11.5 J 4110 0.096
S-6 7/6/2015 5020 27.6 U 27.6 U 1960 45.1 J 1.4 U 3.3 U 43.8 355 11.6 92500 27.6 U 64400 0.05
S-7 7/3/2015 5150 8 U 8 U 130 20 U 0.38 J 0.96 U 34.1 54.5 10.6 33300 8 UJ 2470 0.018
S-8 7/3/2015 2200 6.6 U 6.6 U 21 16.4 U 0.33 U 0.79 U 5.5 4.6 J 4.7 8100 6.6 U 92.8 0.014
S-9 7/3/2015 6980 11.2 U 11.2 U 129 16.6 J 0.46 J 1.3 U 47.1 139 17.2 33700 9.7 J 1630 0.11
S-10 7/6/2015 11300 14.9 U 14.9 U 122 19.6 J 0.76 1.8 U 40.2 73.6 39 35200 12.7 J 470 0.069
S-11 7/3/2015 13600 17.7 U 17.7 U 168 23.5 J 1.2 2.1 U 34.9 92 42.1 56100 10.9 J 2170 0.46
S-12 7/6/2015 14500 10.5 U 61.8 574 22.5 J 1.1 0.99 J 102 294 60.8 65800 16.2 11500 0.066
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by
pp
parameter
Shading indicates exceedance of either
applicable criteria.
General Notes:
North Carolina Department of Environment
and Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is
currently available, as a surrogate the PSRG
for Trivalent Chromium was used for
comparison purposes only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Page 1 of 3
Table 9.3. Sediment Total Inorganic Results
Sample Name Sample Date
S-1 7/6/2015
S-2 7/6/2015
S-3 7/6/2015
S-4 7/3/2015
S-6 7/6/2015
S-7 7/3/2015
S-8 7/3/2015
S-9 7/3/2015
S-10 7/6/2015
S-11 7/3/2015
S-12 7/6/2015
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by
pp
parameter
Shading indicates exceedance of either
applicable criteria.
General Notes:
North Carolina Department of Environment
and Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is
currently available, as a surrogate the PSRG
for Trivalent Chromium was used for
comparison purposes only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium Nitrate Nitrogen Potassium Sodium
7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7727-37-9 7440-09-7 7440-23-5
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
1200 4400 1200 100000 2.4 1200 70000 NS NS NS 100000 NS NS NS
NS 130 2.1 NS 0.28 6 1200 NS NS NS NS NS NS NS
5.9 U 8.5 11.8 U 18.2 11.8 U 39.8 77.9 1080 554 U 3160 55.4 UJ NA 2260 591 U
6.8 U 22.6 13.6 U 34.4 13.6 U 63.5 59.3 3210 654 U 1300 65.4 UJ NA 572 J 681 U
4.4 U 17.6 8.9 U 17.2 8.9 U 63.7 45.3 811 445 U 241 44.5 UJ NA 445 U 445 U
8.9 U 27.9 17.8 U 11.9 17.8 U 86.2 38.7 1480 848 U 1560 84.8 UJ NA 741 J 891 U
13.8 U 49.4 27.6 U 45.2 27.6 U 23.2 J 28.8 2510 1420 U 1950 142 UJ NA 1380 U 1380 U
4 U 32.9 8 U 8.5 8 U 35.2 39 729 387 U 2490 38.7 UJ NA 341 J 400 U
3.3 U 1.3 J 6.6 U 2 J 6.6 U 25.6 6 J 183 334 U 596 33.4 UJ NA 276 J 328 U
5.6 U 25.7 11.2 U 8.2 11.2 U 64.5 27.9 1050 530 U 1050 53 UJ NA 428 J 560 U
7.5 U 13.3 14.9 U 13.9 14.9 U 113 39.1 1580 699 U 1660 69.9 UJ NA 781 746 U
8.8 U 13.9 17.7 U 19.3 17.7 U 99 48.2 2560 834 U 2600 83.4 UJ NA 1250 883 U
16.4 107 10.5 U 25.8 10.5 U 126 218 2230 504 U 2500 50.4 UJ NA 792 524 U
Page 2 of 3
Table 9.3. Sediment Total Inorganic Results
Sample Name Sample Date
S-1 7/6/2015
S-2 7/6/2015
S-3 7/6/2015
S-4 7/3/2015
S-6 7/6/2015
S-7 7/3/2015
S-8 7/3/2015
S-9 7/3/2015
S-10 7/6/2015
S-11 7/3/2015
S-12 7/6/2015
Std. Units - pH units
Qualifier Notes:
Analyte
CAS RN
Result Unit
NC PSRG Ind
NC PSRG Prot GW
U -- Not detected above the reporting
bold - indicates exceedance of NCDENR
Industrial Health Based PSRG
Italic/underline - indicates exceedance of
NCDENR Protection of Groundwater PSRG
Comparison Criteria:
J- --Estimated concentration, biased low.
mg/kg - milligrams per kilogram
NA - Not analyzed or not reported by
pp
parameter
Shading indicates exceedance of either
applicable criteria.
General Notes:
North Carolina Department of Environment
and Natural Resources Division of Waste
Management Soil Remediation Goals Table
(March 2015) - Preliminary Industrial Health
Based Soil Remediation Goal (PSRG) and
Protection of Groundwater PSRG.
**Note: No PSRG for Total Chromium is
currently available, as a surrogate the PSRG
for Trivalent Chromium was used for
comparison purposes only.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
Sulfate pH (field)
Total Organic
Carbon
14808-79-8 PH TOC
mg/kg Std. Units mg/kg
NS NS NS
NS NS NS
1320 4.2 J 60800
402 J 6 J 66100
310 J 4.2 J 54300
848 U 7 J 53700
919 J 7.4 J 132000
387 U 6.8 J 23300
334 U 0.1 UJ 4240
530 U 7.2 J 31300
1470 3.8 J 69900
834 U 6.7 J 39200
482 J 5.6 J 39400
Page 3 of 3
Table 10-1. COIs Near RBSS with Associated State and Federal Drinking Water Standards
Constituent NCAC 2L Groundwater
Standard (μg/L)
EPA Primary MCL
(μg/L)
EPA Secondary
MCL (μg/L)IMAC (μg/L)
Antimony - 6 - 1
Arsenic 10 10 - -
Chromium 10 100 - -
Cobalt - - - 1
Iron 300 - 300 -
Manganese 50 - 50 -
pH 6.5 - 8.5* - 6.5 - 8.5* -
Sulfate 250,000 - 250,000 -
Thallium - 2 - 0.2
TDS 500,000 - 500,000 -
Vanadium - - - 0.3
*Standard Units
Page 1 of 1
Table 10-2. Gaston and Mecklenburg Counties Private Well Statistics for COIs
Count 1,822 Count 1,934
Minimum (μg/L) 0.5 Minimum (μg/L) 0.5
Maximum (μg/L) 232 Maximum (μg/L) 15
Mean (μg/L) 50 Mean (μg/L) 1.2
Percentage of wells above MCL 2.85% Percentage of wells above MCL 0.21%
Count 366 Count 1,532
Minimum (μg/L) 5 Minimum (μg/L) 0.5
Maximum (μg/L) 30 Maximum (μg/L) 80
Mean (μg/L) 5.1 Mean (μg/L) 5.2
Percentage of wells above MCL 0.00% Percentage of wells above MCL 0.00%
Count 1,815 Count 1,913
Minimum (μg/L) 0 Minimum (μg/L) 25
Maximum (μg/L) 98,000 Maximum (μg/L) 58,560
Mean (μg/L) 781.2 Mean (μg/L) 506
Percentage of wells above SMCL 24.74% Percentage of wells above SMCL 18.19%
Count 1,834 Count 1,925
Minimum (SU) 5 Minimum (SU) 4.6
Maximum (SU) 10.3 Maximum (SU) 9.5
Mean (SU) 7.02 Mean (SU) 7.1
Percentage of wells above SMCL 0.60% Percentage of wells above SMCL 0.52%
Percentage of wells below SMCL 19.25% Percentage of wells below SMCL 5.92%
pH of Gaston County Groundwater pH of Mecklenburg County Groundwater
Arsenic Concentrations in Gaston County Groundwater Arsenic Concentrations in Mecklenburg County Groundwater
Chromium Concentrations in Gaston County Groundwater Chromium Concentrations in Mecklenburg County Groundwater
Iron Concentrations in Gaston County Groundwater Iron Concentrations in Mecklenburg County Groundwater
Page 1 of 1
Table 10-3. Regional Average Concentrations of Iron and Manganese in Groundwater
Region Average Concentration of Iron in
Groundwater (μg/L)
North Carolina Coastal Plain 2715
North Carolina Piedmont 624
North Carolina Mountains 622
North Carolina (statewide) 1320
Region Average Concentration of Manganese in
Groundwater (μg/L)
North Carolina Coastal Plain 41
North Carolina Piedmont 221
North Carolina Mountains 44
North Carolina (statewide) 102
Page 1 of 1
Table 10-4. Background Groundwater Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron Boron Beryllium Beryllium
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8 7440-42-8 7440-41-7 7440-41-7
DTDTDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 10 10 700 700 700 700 NS NS
NS NS 1 1 NS NS NS NS NS NS 4 4
Sample Name Sample Date
BG-1D 7/11/2015 740 1400 3.9 3.3 2.1 2 480 370 49 J 27 J 0.2 U 0.2 U
BG-1S 7/6/2015 100 U 1600 0.23 J 0.43 J 0.5 U 0.21 J 20 42 50 U 50 U 0.2 U 0.076 J
BG-2BR 7/17/2015 100 U 580 J 0.5 U 0.5 U 0.12 J 0.28 J 6 13 50 U 50 U 0.2 U 0.2 U
BG-2D 7/11/2015 480 530 0.63 0.72 0.6 0.66 39 42 50 U 50 UJ 0.2 U 0.2 U
BG-2S 7/10/2015 100 U 100 U 0.25 J 0.33 J 0.14 J 0.12 J 68 71 50 U 50 U 0.2 U 0.2 U
BG-3D 7/6/2015 100 U 890 0.5 U 0.16 J 0.38 J 0.81 8.1 50 50 U 50 U 0.2 U 0.53
BG-3S 6/30/2015 100 U 100 U 1.4 J+ 1.3 J+0.5 U 0.5 U 33 33 50 U 50 U 0.2 U 0.2 U
MW-7BR 7/10/2015 690 760 0.22 J 0.86 0.24 J 0.23 J 290 340 50 U 50 U 0.2 U 0.2 U
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Page 1 of 5
Table 10-4. Background Groundwater Sample Results
Sample Name Sample Date
BG-1D 7/11/2015
BG-1S 7/6/2015
BG-2BR 7/17/2015
BG-2D 7/11/2015
BG-2S 7/10/2015
BG-3D 7/6/2015
BG-3S 6/30/2015
MW-7BR 7/10/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead
7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1
DTDTDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
2 2 10 10 NS NS 1000 1000 300 300 15 15
NS NS NS NS 1 1 NS NS NS NS NS NS
0.08 U 0.08 U 28.7 32.3 1.3 1.3 5.5 2.8 50 U 1500 0.61 0.24
0.08 U 0.034 J 0.43 J+ 5.2 1.9 3 0.66 J 2.4 50 U 2200 0.1 U 0.61
0.08 U 0.08 U 0.52 J+ 2.3 0.17 J 0.82 0.84 J+ 3.1 50 U 760 J 0.048 J 0.35
0.08 U 0.05 J 55.9 57.5 0.5 U 0.5 U 0.54 J+ 0.63 J 50 U 50 U 0.1 U 0.093 J
0.041 J 0.08 U 0.41 J 0.83 0.69 0.69 0.37 J 1 U 50 U 28 J 0.068 J 0.1 U
0.08 U 0.08 U 0.86 J+ 0.97 J+ 0.14 J 0.84 0.28 J+ 2.2 50 U 930 0.1 U 5.1
0.032 J 0.031 J 0.33 J+ 0.25 J+ 0.54 0.54 1 UJ 1 UJ 50 U 50 UJ 0.1 UJ 0.1 U
0.08 U 0.08 U 23.3 24.7 0.5 U 0.5 U 1.6 1.5 50 U 50 U 0.22 0.21
Page 2 of 5
Table 10-4. Background Groundwater Sample Results
Sample Name Sample Date
BG-1D 7/11/2015
BG-1S 7/6/2015
BG-2BR 7/17/2015
BG-2D 7/11/2015
BG-2S 7/10/2015
BG-3D 7/6/2015
BG-3S 6/30/2015
MW-7BR 7/10/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium
7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6
DTDTDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
50 50 1 1 NS NS 100 100 20 20 NS NS
NS NS NS NS NS NS NS NS NS NS NS NS
5 U 27 0.2 U 0.12 J+ 10.1 9.4 1.8 6.7 2.7 2.1 4300 3300
240 300 0.2 U 0.2 U 0.5 U 0.2 J 1.8 4.4 0.5 U 0.5 U 14 16
5 U 28 J 0.14 J 0.79 J- 11 12.8 0.58 2.1 0.5 UJ 0.6 120 140
5 U 5 U 0.2 U 0.2 U 5 5.2 0.5 UJ 0.29 J 2.8 2.9 300 330
360 370 0.2 U 0.2 U 0.25 J 0.19 J 1.2 1.5 0.5 U 0.5 U 92 94
14 63 0.2 U 0.2 U 3.6 2.8 0.6 1.1 0.5 U 0.23 J 45 100
240 240 0.2 U 0.073 J 0.16 J 0.14 J 0.69 0.63 J+ 0.5 U 0.5 U 67 68
5 U 5 U 0.2 U 0.2 U 12.4 13.3 0.22 J 0.29 J 0.48 J 0.51 1400 1600
Page 3 of 5
Table 10-4. Background Groundwater Sample Results
Sample Name Sample Date
BG-1D 7/11/2015
BG-1S 7/6/2015
BG-2BR 7/17/2015
BG-2D 7/11/2015
BG-2S 7/10/2015
BG-3D 7/6/2015
BG-3S 6/30/2015
MW-7BR 7/10/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium
7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4
DTDTDTNNNTNT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 1000 1000 NS NS NS NS 250000 NS
0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS
0.1 U 0.1 U 20 22 10 U 10 U 5000 U 401000 412000 83300 6100 J- 112
0.016 J 0.032 J 1 U 5.9 14 19 10200 5000 U 10200 1460 1900 1330
0.016 J 0.1 U 2.7 4.6 10 U 12 75400 5000 U 75400 24200 2200 3100
0.1 U 0.1 UJ 29.2 29.9 10 UJ 10 U 59000 91300 150000 57600 10000 84.4 J
0.031 J 0.033 J+ 1 U 0.35 J 15 8.9 J 22100 5000 U 22100 11000 8900 2210
0.1 U 0.1 U 3.1 3.7 10 U 5.1 J 43200 5000 U 43200 9430 2800 2270
0.1 U 0.1 U 0.7 J+ 0.75 J+10 UJ 10 UJ 28900 5000 U 28900 6140 4600 775
0.071 J 0.064 J+2.1 2.1 10 U 10 U 5000 U 657000 1080000 537000 4900 100 U
Page 4 of 5
Table 10-4. Background Groundwater Sample Results
Sample Name Sample Date
BG-1D 7/11/2015
BG-1S 7/6/2015
BG-2BR 7/17/2015
BG-2D 7/11/2015
BG-2S 7/10/2015
BG-3D 7/6/2015
BG-3S 6/30/2015
MW-7BR 7/10/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Methane Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS
NNTTNNNNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 250000 NS NS 500000 NS
NS NS NS NS NS NS NS NS NS
2.9 J+ 30 130000 75600 48400 J+ 100 U 7300 555000 237000
2.6 J+ 40 5000 U 5000 U 580 J 100 U 1000 U 25000 U 20600
12.6 J+ 500 5000 UJ 7670 8200 100 U 10100 J 118000 19600
1.8 J+ 1000 4880 J 29200 31100 100 U 1800 261000 2500 U
1.5 J+ 3900 5000 U 7180 2900 100 U 600 J 87000 7200
1.5 J+ 1600 5000 U 16400 1100 100 U 1000 U 231000 218000
1.4 J+ 20 U 5000 U 7260 2400 100 U 1000 U 57000 2500 U
1.6 J+ 19 J 17800 25300 7200 100 U 1300 1180000 7000
Page 5 of 5
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U
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-
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7
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1
5
Mi
x
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1
Table 10-6. Groundwater Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 10 10 700 700 700
NS NS 1 1 NS NS NS NS NS
Sample Name Sample Date
AB-1S 7/9/2015 100 U 220 2.8 3.2 0.14 J 0.17 J 21 21 50 U
AB-1D 7/9/2015 610 1100 1.5 6.3 0.51 0.84 27 30 67
AB-2S 7/8/2015 100 U 680 3.4 3.1 0.5 U 0.2 J 25 28 50 U
AB-2D 7/8/2015 710 1000 0.85 1 0.67 0.72 12 13 200
AB-3D 7/7/2015 160 1800 0.5 U 0.22 J 0.5 U 0.49 J 190 190 50 U
AB-3BR 7/23/2015 NA NA NA NA NA NA NA NA NA
AB-3BR 7/23/2015 518 7120 1 U 1 U 1 U 1.23 8 18 50 U
AB-4D 7/8/2015 190 400 1.4 1.2 0.6 0.65 17 18 26 J
AB-5D 6/20/2015 310 580 0.58 1.2 0.45 J 0.25 J 23 27 170 J+
AB-6S 6/22/2015 4300 5000 1.7 1.8 0.88 0.82 7.7 9 41 J
AB-6BRU 6/22/2015 71 J 340 0.17 J 0.32 J 0.25 J 0.24 J 5.3 5.6 460
AB-6BRU 7/2/2015 310 3000 0.29 J 2.5 0.21 J 0.75 6.9 38 490
AB-7I 7/7/2015 100 U 530 3.6 1 J+ 0.12 J 0.5 U 33 35 50 U
AB-7D 7/1/2015 1000 1200 7.2 J+ 7.5
1.9 2.2 39 41 36 J
AB-8S 6/20/2015 100 U 200 0.5 U 0.5 U 0.5 U 0.5 U 130 130 240 J+
AB-8D 6/17/2015 100 U 420 0.5 U 0.5 U 0.31 J 0.17 J 44 45 470
AS-1S 6/5/2015 10 U 942 0.23 J 0.26 J 0.95 1.4 95 100 1900
AS-1D 6/5/2015 2820 3520 2.7 3 0.32 J 0.68 47 51 50 U
AS-2S 6/5/2015 9.8 J 4060 0.18 J 0.21 J 0.5 U 0.42 J 150 170 50 U
AS-2D 6/8/2015 556 759 1.3 J+1 J+ 0.43 J 0.66 42 50 50 U
AS-3D 6/5/2015 492 926 1.2 1.6 0.87 0.97 14 21 50 U
BG-1S 7/6/2015 100 U 1600 0.23 J 0.43 J 0.5 U 0.21 J 20 42 50 U
BG-1D 7/11/2015 740 1400 3.9 3.3 2.1 2 480 370 49 J
BG-2S 7/10/2015 100 U 100 U 0.25 J 0.33 J 0.14 J 0.12 J 68 71 50 U
BG-2D 7/11/2015 480 530 0.63 0.72 0.6 0.66 39 42 50 U
BG-2BR 7/17/2015 100 U 580 J 0.5 U 0.5 U 0.12 J 0.28 J 6 13 50 U
BG-3S 6/30/2015 100 U 100 U 1.4 J+ 1.3 J+
0.5 U 0.5 U 33 33 50 U
BG-3D 7/6/2015 100 U 890 0.5 U 0.16 J 0.38 J 0.81 8.1 50 50 U
C-2S 6/19/2015 1600 1900 0.5 U 0.5 U 0.86 0.95 J+ 35 36 170 J+
C-2D 6/19/2015 67 J 170 0.5 U 0.5 U 1.3 1.3 J+ 18 19 50 U
GWA-1S 7/2/2015 100 U 1800 0.22 J 0.28 J 0.5 U 0.5 U 33 60 50 U
GWA-1D 7/2/2015 680 1500 2.6 3.2 0.82 0.93 12 18 31 J
GWA-2S 6/22/2015 100 U 570 0.5 U 0.5 U 0.14 J 0.28 J 43 52 440
GWA-2BRU 7/10/2015 NA NA NA NA NA NA NA NA NA
GWA-2BRU 7/8/2015 100 U 2300 0.25 J 18.2
1.4 0.36 J 7.7 280 50 U
GWA-2BR 6/17/2015 100 U 66 J 0.25 J 0.24 J 1.4 1.3 7.7 7.7 50 U
GWA-3SA 7/1/2015 60 J 270 0.6 J+ 0.77 J+ 0.21 J 0.23 J 110 100 50 U
GWA-3D 6/17/2015 73 J 92 J 0.5 U 0.5 U 0.72 0.65 44 49 34 J
GWA-4S 7/10/2015 100 U 250 0.5 U 0.5 U 0.5 U 0.5 U 21 26 50 U
GWA-4D 7/10/2015 100 U 52 J 0.17 J 0.5 U 0.28 J 0.22 J 26 26 50 U
GWA-5S 6/18/2015 100 U 100 U 0.5 U 0.5 U 0.5 U 0.5 U 17 17 50 U
GWA-5D 7/11/2015 420 460 0.5 U 0.5 U 1.1 0.96 8.4 9.6 31 J+
GWA-6S 6/19/2015 100 U 700 0.5 U 0.5 U 0.17 J 0.24 J+ 39 45 34 J+
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Page 1 of 21
Table 10-6. Groundwater Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 10 10 700 700 700
NS NS 1 1 NS NS NS NS NS
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015 1000 1400 0.25 J 0.25 J 1 1 J+ 23 27 50 U
GWA-7S 6/19/2015 100 U 1200 J+ 0.5 U 0.5 U 0.5 U 0.2 J+ 21 39 50 U
GWA-7D 6/17/2015 100 U 430 0.5 U 0.17 J 0.46 J 0.48 J 8.3 13 50 U
GWA-7BR 7/7/2015 100 U 120 0.25 J 0.96 0.23 J 0.29 J 11 18 50 U
GWA-8S 6/28/2015 100 U 100 U 0.5 U 0.5 U 0.18 J 0.5 U 120 130 240
GWA-8D 6/28/2015 100 U 1200 0.5 U 0.5 U 0.12 J 0.5 U 4.1 J 5.3 120
GWA-9S 6/30/2015 88 J 160 0.5 UJ 0.5 UJ 0.5 U 0.5 U 28 30 210
GWA-9D 7/1/2015 100 U 450 0.5 UJ 0.5 UJ 0.5 U 0.13 J 7.3 9.4 260
GWA-9BR 7/10/2015 NA 4000 NA 4.5 NA 10.7 NA 3.7 J NA
GWA-10S 7/2/2015 100 U 67 J 0.5 U 0.5 U 0.5 U 0.5 U 28 29 170
GWA-10D 7/3/2015 270 370 0.5 U 1.1 0.36 J 0.29 J 45 58 110
GWA-20S 7/11/2015 100 U 4200 0.5 U 0.22 J 0.5 U 3.3 23 67 30 J+
GWA-20D 7/16/2015 120 650 0.5 U 0.5 U 0.27 J+ 0.64 330 360 50 U
GWA-22S 7/10/2015 100 U 180 3.5 2.2 0.5 U 0.5 U 31 34 50 U
GWA-22D 7/10/2015 250 6000 0.5 U 1.4 0.78 0.91 16 61 50 U
GWA-22BR 7/21/2015 NA NA NA NA NA NA NA NA NA
GWA-22BR 7/21/2015 314 766 1 U 1 U 1 U 1 U 36 185 50 U
GWA-23S 7/10/2015 140 170 0.5 U 0.24 J 0.5 U 0.5 U 38 37 50 U
GWA-23D 7/16/2015 500 560 0.5 U 0.5 U 0.82 J+ 0.9 14 15 37 J
GWA-23BR 7/17/2015 260 490 0.5 U 0.5 U 0.5 U 0.28 J 140 130 50 U
MW-1S 6/29/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.49 J 0.5 U 21 22 310
MW-1D 6/29/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.5 U 0.5 U 28 31 650
MW-2D 6/30/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.5 U 0.5 U 22 23 50 U
MW-3S 6/30/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.5 U 0.5 U 16 17 260
MW-3D 6/30/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.5 U 0.5 U 7.4 7.7 270
MW-4D 6/18/2015 100 U 220 J+ 0.5 U 0.5 U 0.5 U 0.5 U 64 65 290
MW-5S 6/25/2015 100 U 100 U 0.5 U 0.5 U 0.5 U 0.5 U 21 22 320
MW-5D 6/18/2015 100 U 180 J+ 0.5 U 0.5 U 0.12 J 0.5 U 32 32 400
MW-6S 6/18/2015 100 U 81 J+ 0.5 U 0.5 U 0.5 U 0.5 U 8.3 8.4 240
MW-6D 6/18/2015 100 U 71 J+ 0.5 U 0.5 U 0.5 U 0.5 U 7.1 7.4 340
MW-7BR 7/10/2015 690 760 0.22 J 0.86 0.24 J 0.23 J 290 340 50 U
MW-8S 6/30/2015 100 U 170 0.4 J+ 0.83 J+ 0.5 U 0.5 U 52 57 50 U
MW-8I 7/1/2015 100 U 1600 0.5 UJ 0.5 UJ 0.5 U 0.12 J 27 42 50 U
MW-8D 7/1/2015 100 U 2500 0.5 UJ 0.21 J+ 0.12 J 0.32 J 21 43 50 U
MW-9 7/6/2015 100 U 160 0.5 U 0.5 U 0.12 J 0.18 J 57 58 37 J
MW-9D 7/2/2015 1100 1300 2.6 2.7 0.21 J 0.28 J 20 23 50 U
MW-9D 7/1/2015 930 1000 16.8 5.4 0.28 J 0.38 J 20 21 50 U
MW-9BR 7/2/2015 150 370 1.3 2.3 0.52 0.69 20 21 50 U
MW-10 6/23/2015 100 U 210 0.5 U 0.5 U 0.5 U 0.16 J 49 56 170
MW-11SR 7/2/2015 100 U 100 U 0.72 0.87 0.5 U 0.5 U 23 25 340
MW-11DR 7/2/2015 100 U 78 J NA 0.59 NA 0.5 U 51 54 320
MW-13 6/30/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.36 J 0.39 J 290 300 66
MW-14 6/30/2015 100 U 100 U 0.5 UJ 0.5 UJ 0.5 U 0.5 U 7.4 7.8 110
Page 2 of 21
Table 10-6. Groundwater Sample Results
Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Boron
7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-42-8
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 10 10 700 700 700
NS NS 1 1 NS NS NS NS NS
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015 100 U 120 0.5 U 0.5 U 0.5 U 0.25 J 77 86 260
MW-15D 6/18/2015 880 930 0.74 0.74 1.2 1 9 9.1 190
MW-15BR 6/23/2015 160 250 0.21 J 0.25 J 0.68 0.78 18 23 240
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Page 3 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Boron Beryllium Beryllium Cadmium Cadmium Chromium Chromium Cobalt Cobalt
7440-42-8 7440-41-7 7440-41-7 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
700 NS NS 2 2 10 10 NS NS
NS 4 4 NS NS NS NS 1 1
50 U 0.2 U 0.12 J 0.028 J 0.08 U 0.48 J 1.8 J+16.2 15.9
65 0.2 U 0.068 J 0.062 J 0.031 J 21.2 49.2 0.5 U 2.9
50 U 0.14 J 0.15 J 0.041 J 0.065 J 0.3 J+ 2.5 J+15.9 17.1
160 0.091 J 0.2 U 0.034 J 0.045 J 12.1 13 0.5 U 0.15 J
50 U 0.2 U 0.2 U 0.08 U 0.08 U 45.3 51 0.5 U 0.18 J
NA NA NA NA NA NA NA NA NA
50 U 1 U 1 U 1 U 1 U 1.99 8.27 1 U 1.64
50 U 0.2 U 0.2 U 0.08 U 0.08 U 6.4 7.4 0.5 U 0.18 J
150 0.2 U 0.2 U 0.08 U 0.08 U 3.9 5.3 0.5 U 0.5 U
45 J 0.2 U 0.2 U 0.08 U 0.08 U 0.78 J+ 1.2 J+ 0.5 U 0.31 J
480 0.2 U 0.2 U 0.08 U 0.08 U 2 J+ 2.4 J+ 0.5 U 0.5 U
430 0.2 U 0.2 U 0.08 U 0.026 J 3.1 J 8.1 0.5 U 1.8
50 U 0.2 U 0.2 U 0.08 U 0.036 J+ 1.1 J+ 0.9 J+1.5 1.6
50 UJ 0.2 UJ 0.2 UJ 0.08 U 0.08 U 26.4 24.7 0.5 UJ 0.5 U
220 0.17 J 0.18 J 0.13 0.16 3.1 3.8 0.56 0.55
440 0.2 U 0.2 U 0.08 U 0.08 U 0.43 J 1.4 0.61 0.73
2200 0.2 U 0.2 U 0.031 J 0.054 J 0.66 J+ 6.1 5.3 5.4
50 U 0.2 U 0.2 U 0.08 U 0.08 U 830 903 0.5 U 0.18 J
50 U 0.18 J 0.21 0.11 0.13 10.2 44.8 10.1 12.4
28 J 0.2 U 0.2 U 0.08 U 0.08 U 20.7 22.5 0.5 U 0.2 J
27 J 0.2 U 0.2 U 0.08 U 0.08 U 20.9 23.5 0.5 U 0.16 J
50 U 0.2 U 0.076 J 0.08 U 0.034 J 0.43 J+ 5.2 1.9 3
27 J 0.2 U 0.2 U 0.08 U 0.08 U 28.7 32.3 1.3 1.3
50 U 0.2 U 0.2 U 0.041 J 0.08 U 0.41 J 0.83 0.69 0.69
50 UJ 0.2 U 0.2 U 0.08 U 0.05 J 55.9 57.5 0.5 U 0.5 U
50 U 0.2 U 0.2 U 0.08 U 0.08 U 0.52 J+ 2.3 0.17 J 0.82
50 U 0.2 U 0.2 U 0.032 J 0.031 J 0.33 J+ 0.25 J+ 0.54 0.54
50 U 0.2 U 0.53 0.08 U 0.08 U 0.86 J+ 0.97 J+ 0.14 J 0.84
170 2.1 1.9 0.21 0.21 0.51 J+ 0.64 J+42.5 39.7
50 U 0.2 U 0.2 U 0.055 J 0.08 U 2.7 J+ 2.5 J+ 0.5 U 0.5 U
50 UJ 0.2 U 0.2 U 0.08 U 0.08 U 1.1 J 11.6 0.23 J 2.1
33 J 0.2 U 0.2 U 0.08 U 0.08 U 2.9 J 6.1 0.5 U 0.55
460 0.2 U 0.2 U 0.032 J 0.08 U 1 J+ 2.8 J+ 0.5 U 0.34 J
NA NA NA NA NA NA NA NA NA
50 U 0.2 U 0.2 U 0.08 U 0.08 U 3.4 46 0.5 U 0.81
50 U 0.2 U 0.2 U 0.08 U 0.08 U 3.4 7.4 0.5 U 0.5 U
50 UJ 0.2 UJ 0.2 UJ 0.16 0.19 0.55 J+ 0.53 J+19.8 18.4
34 J 0.2 U 0.2 U 0.14 0.11 0.86 1.1 1.2 1.1
50 UJ 0.24 0.26 0.11 0.12 2.2 2.1 1.4 1.7
50 UJ 0.2 U 0.2 U 0.093 0.08 U 0.6 2.1 0.52 0.52
50 U 0.2 U 0.2 U 0.08 U 0.08 U 0.32 J+ 0.57 J+4.6 4.5
50 U 0.2 U 0.2 U 0.08 U 0.08 U 11.9 24.5 0.5 U 0.21 J
50 U 0.2 U 0.079 J 0.24 0.2 0.52 J+ 1.7 J+25.3 27.6
Page 4 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Boron Beryllium Beryllium Cadmium Cadmium Chromium Chromium Cobalt Cobalt
7440-42-8 7440-41-7 7440-41-7 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
700 NS NS 2 2 10 10 NS NS
NS 4 4 NS NS NS NS 1 1
50 U 0.2 U 0.2 U 0.08 U 0.08 U 21 24.8 0.5 U 0.3 J+
50 U 0.2 U 0.2 U 0.08 U 0.08 U 2.3 J+ 3.8 0.31 J+ 1 J+
50 U 0.2 U 0.2 U 0.08 U 0.08 U 2.1 3.3 0.5 U 0.63
50 U 0.2 U 0.2 U 0.08 U 0.08 U 7.8 5.8 0.5 U 0.5 U
240 0.073 J 0.2 U 0.08 U 0.054 J 1.5 J+ 6.4 J+2 66.8
110 0.2 U 0.2 U 0.08 U 0.08 U 2.5 J+ 4.2 J+ 0.16 J 0.7
200 0.08 J 0.078 J 0.08 U 0.08 U 0.36 J+ 0.32 J+51 50.1
260 J+ 0.2 UJ 0.2 UJ 0.08 U 0.08 U 0.4 J+ 0.39 J+ 0.47 J+ 0.58
210 NA 0.2 U NA 0.08 U NA 40.6 NA 0.75
170 0.094 J 0.11 J 0.038 J 0.032 J 1 J 3.5 J 10.3 10
140 0.2 U 0.2 U 0.08 U 0.08 U 7.9 6.1 0.5 U 0.19 J
50 U 0.2 U 0.65 0.036 J 0.13 0.38 J+133 3 12.7
50 U 0.2 U 0.2 U 0.08 U 0.027 J 144 186 0.5 U 1.9
50 U 0.08 J 0.2 U 0.078 J+ 0.075 J 0.77 J+ 1.9 J+1.2 1.3
50 U 0.2 U 0.28 0.08 UJ 0.08 U 171 174 0.5 U 3.4
NA NA NA NA NA NA NA NA NA
50 U 1 U 1 U 1 U 1 U 49.5 108 1 U 1 U
50 U 0.2 U 0.2 U 0.038 J+ 0.04 J 0.54 J+ 3.2 J+3.1 3.3
50 U 0.2 U 0.2 U 0.08 U 0.08 U 53.6 55 0.5 U 0.5 U
50 U 0.2 U 0.2 U 0.08 U 0.08 U 13.4 15.6 0.5 U 0.5 U
300 0.2 U 0.2 U 0.08 U 0.08 U 0.5 UJ 0.57 J+60.7 61
650 0.2 U 0.2 U 0.1 0.12 0.66 J+ 0.8 J+ 0.25 J 0.51
50 U 0.2 U 0.2 U 0.08 U 0.08 U 2.3 J+ 3.6 J+ 0.5 U 0.14 J
260 0.2 U 0.2 U 0.08 U 0.08 U 0.41 J+ 0.44 J+ 0.5 U 0.14 J
260 0.2 U 0.2 U 0.08 U 0.08 U 1.8 J+ 1.7 J+ 0.5 U 0.5 U
270 0.2 U 0.2 U 0.08 U 0.08 U 1.3 J+ 1.4 J+ 0.57 0.67
330 0.084 J 0.072 J 0.08 U 0.08 U 1.6 1.7 2.2 1.9
380 0.2 U 0.2 U 0.08 U 0.08 U 2.4 J+ 2.7 J+ 0.5 U 0.24 J
230 0.2 U 0.2 U 0.08 U 0.08 U 0.36 J+ 0.5 UJ 0.21 J 0.2 J
320 0.2 U 0.2 U 0.08 U 0.08 U 1.1 J+ 1.9 J+ 0.5 U 0.5 U
50 U 0.2 U 0.2 U 0.08 U 0.08 U 23.3 24.7 0.5 U 0.5 U
50 U 0.095 J 0.089 J 0.08 U 0.036 J 0.42 J+ 0.71 J+ 0.2 J 0.23 J
50 U 0.2 UJ 0.24 J+ 0.08 U 0.08 U 0.71 J+ 1.3 J+ 0.5 UJ 0.76
50 UJ 0.11 J+ 0.12 J+ 0.08 U 0.08 U 0.77 J+ 4.1 0.5 UJ 1.1
36 J 0.2 U 0.2 U 0.08 U 0.08 U 1 J+ 1.2 0.67 0.87
50 U 0.2 U 0.2 U 0.08 U 0.08 U 26.3 27 0.5 U 0.5 U
50 UJ 0.2 UJ 0.2 UJ 0.08 U 0.08 U 24.8 20.6 0.5 UJ 0.5 U
50 U 0.2 U 0.2 U 0.08 U 0.08 U 5 4 J 0.5 U 0.5 U
180 0.12 J 0.15 J 0.027 J 0.082 2.1 J+ 2.7 0.72 0.9
360 0.2 U 0.2 U 0.08 U 0.026 J 1.9 J 1.8 J 0.5 U 0.5 U
320 NA 0.071 J NA 0.08 U NA 2.5 J NA 0.5 UJ
60 0.2 U 0.2 U 0.08 U 0.08 U 0.4 J+ 0.38 J+24.3 23.7
130 0.2 U 0.2 U 0.08 U 0.08 U 1.3 J+ 1.7 J+ 0.5 U 0.5 U
Page 5 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Boron Beryllium Beryllium Cadmium Cadmium Chromium Chromium Cobalt Cobalt
7440-42-8 7440-41-7 7440-41-7 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
700 NS NS 2 2 10 10 NS NS
NS 4 4 NS NS NS NS 1 1
280 0.15 J 0.22 0.028 J 0.08 U 4.9 6.8 0.58 1.3
170 0.2 U 0.2 U 0.08 U 0.08 U 3.5 3.5 0.5 U 0.5 U
260 0.2 U 0.2 U 0.08 U 0.08 U 4.2 4.9 0.5 U 0.5 U
Page 6 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury
7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1000 1000 300 300 15 15 50 50 1
NS NS NS NS NS NS NS NS NS
0.8 J 6.4 50 U 510 0.077 J 0.18 260 250 0.2 U
0.44 J 6.2 50 U 370 0.13 0.85 5 U 10 0.2 U
6.5 J+ 7.6 50 U 1700 0.12 J+ 0.29 310 330 0.2 U
5.5 J 6.9 50 U 130 0.13 J 0.13 5 U 5.6 0.2 U
2.4 4.7 50 U 270 0.16 0.44 J+ 5 U 6.7 0.2 U
NA NA NA NA NA NA NA NA NA
2.26 9.15 33 4440 1 U 1 U 5 U 87 0.05 U
1.1 J+ 1.2 50 U 130 0.1 UJ 0.055 J 5 U 4.1 J 0.2 U
0.99 J+ 1.7 J+ 50 U 56 0.088 J 0.1 U 5 U 5 U 0.2 U
1.7 J+ 1.3 50 U 730 0.1 UJ 0.19 5 U 12 0.2 U
5.4 0.46 J 50 U 85 0.72 0.1 U 5 U 4 J 0.11 J+
0.3 J+ 9.2 52 970 0.1 U 0.73 J+ 2.8 J 25 0.2 U
1.4 0.5 J+ 50 U 380 0.06 J 0.11 J+77 85 0.2 U
1.3 J+ 2.3 J+ 50 U 94 J+ 0.1 UJ 0.1 UJ 5 U 4.6 J 0.2 U
0.3 J+ 0.56 J+ 50 U 160 0.1 U 0.1 U 140 150 0.2 U
0.58 J 1.3 60 300 0.1 U 0.1 UJ 130 140 0.2 U
1.5 J+ 1.5 J+ 50 U 660 0.083 J 0.14 1700 1900 0.2 U
4.1 J+ 5.7 J+ 100 107 0.053 J 0.11 5 U 3.7 J 0.2 U
0.45 J+ 3.9 J+314 2090 0.056 J 1.4 580 640 0.2 U
1 UJ 3.3 J+ 50 U 221 0.1 U 0.1 U 5 U 8.2 0.2 U
1.5 J+ 3.5 J+ 50 U 279 0.1 U 0.094 J 5 U 12 0.2 U
0.66 J 2.4 50 U 2200 0.1 U 0.61 240 300 0.2 U
5.5 2.8 50 U 1500 0.61 0.24 5 U 27 0.2 U
0.37 J 1 U 50 U 28 J 0.068 J 0.1 U 360 370 0.2 U
0.54 J+ 0.63 J 50 U 50 U 0.1 U 0.093 J 5 U 5 U 0.2 U
0.84 J+ 3.1 50 U 760 J 0.048 J 0.35 5 U 28 J 0.14 J
1 UJ 1 UJ 50 U 50 UJ 0.1 UJ 0.1 U 240 240 0.2 U
0.28 J+ 2.2 50 U 930 0.1 U 5.1 14 63 0.2 U
5.9 J+ 5.8 J+ 50 U 140 J+ 0.17 J+ 0.2 580 600 0.2 U
0.58 J+ 1.6 J+ 50 U 56 J+ 0.1 U 0.1 U 7 9.1 0.2 U
1.8 J+ 9.8 50 U 1800 0.12 0.21 J+ 30 110 0.2 U
0.74 J+ 4.1 50 U 720 0.1 U 0.13 J+ 5 U 28 0.2 U
1.2 J+ 1.3 50 U 590 0.066 J 0.076 J 56 95 0.1 J+
NA NA NA NA NA NA NA NA NA
0.27 J 8.2 50 U 1500 0.1 U 0.81 3.5 J 61 0.2 U
0.27 J 0.49 J 50 U 64 0.1 U 0.048 J 3.5 J 5 UJ 0.2 U
0.51 J+ 0.92 J+ 190 420 0.1 UJ 0.14 J+13600 12700 0.2 U
2.1 4.2 50 U 50 U 0.1 U 0.1 U 11600 9200 0.2 U
0.97 J 0.45 J 50 U 220 0.3 0.083 J 92 120 0.2 U
1.8 0.97 J 50 U 62 0.26 0.1 U 27 28 0.2 U
1.4 J+ 2.6 J+ 50 U 44 J+ 0.1 U 0.1 U 200 190 0.2 U
0.67 J+ 0.69 J 50 U 86 0.056 J+ 1.3 5 U 5 U 0.2 U
6.2 J+ 10.4 50 U 1100 0.1 U 0.59 1100 1300 0.2 U
Page 7 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury
7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1000 1000 300 300 15 15 50 50 1
NS NS NS NS NS NS NS NS NS
1.3 J+ 4.3 J+ 50 U 290 J+ 0.1 UJ 0.1 U 5 U 6.8 0.2 U
0.31 J+ 3.6 J+ 50 U 790 0.1 U 0.26 16 30 0.2 U
0.97 J 2.6 50 U 440 0.053 J 0.35 5 U 28 0.2 U
1.7 0.49 J 50 U 77 0.14 0.14 5 U 4.2 J 0.2 U
5.8 J+ 11.2 J+ 50 U 58 0.63 0.1 U 760 720 0.2 U
7.5 J+ 1.1 J+ 50 U 1300 0.76 0.072 J+69 96 0.2 U
2.7 J+ 1.4 J+ 26 J 170 J+ 0.13 J+ 0.14 3000 2900 0.2 U
1 UJ 2.5 J+ 80 270 0.1 UJ 0.074 J+83 90 0.2 U
NA 27.7 NA 450 NA 0.84 NA 13 NA
1.3 J+ 1.5 J+ 32 J 87 0.1 U 0.1 UJ 240 250 0.2 U
1.2 J+ 3 50 U 170 0.1 U 0.42 5 U 10 0.2 U
0.52 J+ 29.7 34 J 9500 0.058 J+ 7.5 150 320 0.2 U
2 J+ 9.2 50 U 660 0.71 J+ 1.1 5 U 15 0.2 U
5 5 50 U 94 0.062 J+ 0.071 J 44 48 0.2 U
0.48 J 12.3 50 U 2600 0.1 UJ 1.2 5 U 120 0.2 U
NA NA NA NA NA NA NA NA NA
2.01 4.28 10 U 61 1 U 1 U 5 U 5 U 0.05 U
0.95 J+ 9.9 50 U 530 0.094 J+ 0.18 81 82 0.2 U
1.2 J+ 2 50 U 33 J 0.1 UJ 0.1 U 5 U 5 U 0.2 U
2 J+ 1.1 50 U 140 0.19 0.31 5 U 4.4 J 0.098 J
1 UJ 0.26 J+30600 30800 0.1 UJ 0.064 J 2600 2600 0.2 U
0.9 J+ 1.1 J+ 50 U 74 J+ 0.1 UJ 0.064 J 430 530 0.2 U
0.63 J+ 0.23 J+ 50 U 72 J+ 0.072 J+ 0.1 U 7.7 8.3 0.2 U
8.9 J+ 0.22 J+ 50 U 140 J+ 0.88 J+ 0.24 53 68 0.2 U
6.9 J+ 1 UJ 50 U 44 J+ 0.68 J+ 0.09 J 5 U 5 U 0.2 U
1.4 J+ 2.1 J+ 50 U 230 J+ 0.1 U 0.058 J 22 J+ 24 J+ 0.2 U
6.1 0.32 J 50 U 50 U 0.73 0.062 J 49 39 0.2 U
1.5 J+ 4.2 J+ 50 U 200 J+ 0.1 U 0.082 J 3 J+ 8.1 J+ 0.2 U
1.1 J+ 1 U 71 J+ 250 J+ 0.1 U 0.051 J 43 44 0.2 U
0.46 J+ 1.2 J+ 50 U 93 J+ 0.1 U 0.051 J 7.2 J+ 8.4 J+ 0.2 U
1.6 1.5 50 U 50 U 0.22 0.21 5 U 5 U 0.2 U
0.95 J+ 0.41 J+ 50 U 85 J+ 0.061 J+ 0.076 J 54 57 0.2 U
1.6 J+ 68 J+ 50 U 2100 0.093 J+ 0.28 J+ 2.8 J 39 0.2 U
7 J+ 24.5 J+ 50 U 2700 0.095 J+ 0.73 J+ 3.5 J 40 0.2 U
1.2 0.48 J 50 U 220 0.18 0.21 4.6 J 7 0.2 U
1.7 J+ 2.5 J+ 88 180 0.1 U 0.091 J+ 4.6 J 8.1 0.2 U
0.98 J+ 1.2 J+ 50 U 50 UJ 0.1 UJ 0.1 UJ 5 U 5 U 0.2 U
0.9 J+ 1.6 J+ 50 U 180 0.057 J 0.33 J+ 5 U 7.5 0.2 U
0.44 J 0.7 J 50 U 220 0.1 U 0.15 30 36 0.1 J+
0.33 J+ 0.32 J+ 33 J 46 J 0.047 J 0.1 UJ 29 32 0.2 U
NA 0.37 J+ 50 U 62 NA 0.081 J+ 6.3 9.1 0.2 U
0.5 J+ 0.29 J+15000 15700 0.1 UJ 0.1 U 8700 8300 0.2 U
0.34 J+ 1 UJ 50 U 28 J+ 0.1 UJ 0.1 U 3.1 J 4 J 0.2 U
Page 8 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury
7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6
DTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1000 1000 300 300 15 15 50 50 1
NS NS NS NS NS NS NS NS NS
8 2.8 50 U 160 0.72 0.6 26 33 0.1 J+
2.3 J+ 2.5 J+ 50 U 75 J+ 0.1 U 0.059 J 5 U 3.3 J+ 0.2 U
0.52 J 0.7 J 50 U 54 0.1 U 0.066 J 5 U 4.4 J 0.095 J+
Page 9 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium
7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1 NS NS 100 100 20 20 NS NS
NS NS NS NS NS NS NS NS NS
0.11 J+ 0.12 J 0.17 J 2.9 3.3 0.78 0.5 U 11 12
0.09 J 4.2 4.6 0.5 U 16.6 0.9 0.46 J 330 360
0.2 U 0.5 U 0.24 J 3.6 3 0.5 U 0.5 U 12 12
0.2 U 14.1 8.9 0.5 UJ 0.28 J 0.53 0.57 170 180
0.2 U 31.6 34.5 0.38 J 0.98 2.7 3.1 3300 3300
NA NA NA NA NA NA NA NA NA
0.05 U 5.07 5.66 1.44 4.42 19.9 15.4 220 285
0.2 U 3.4 3.3 0.18 J+ 0.97 0.49 J 0.47 J 270 280
0.2 U 4 5.4 0.5 U 0.31 J+ 0.24 J 0.31 J 350 400
0.2 U 8.7 7.6 1.3 1.3 J+ 2.8 2.6 210 230
0.085 J+ 1.2 1.2 0.28 J 0.43 J+ 0.5 U 0.5 U 250 270
0.2 U 1.7 2.8 0.21 J+ 3.3 0.5 U 0.27 J 290 650
0.2 U 0.5 U 0.5 U 0.79 0.76 0.5 U 0.5 U 40 34
0.2 U 8 J+ 8.5 J+ 0.5 UJ 0.5 U 0.76 0.77 300 290
0.11 J+ 0.5 U 0.5 U 1.8 2.1 1.2 1.2 510 510
0.11 J+ 1.2 1.3 1 1.3 0.36 J 0.34 J 490 490
0.2 U 132 136 2.6 5.2 0.5 U 0.49 J 2600 2800
0.2 U 50.5 57.4 0.5 U 2.2 0.94 1.1 690 730
0.2 U 0.49 J 1.5 20.9 31.1 0.5 U 0.5 U 82 88
0.2 U 9.9 10.5 0.5 U 0.95 1.2 1.2 530 590
0.2 U 21.7 22.1 0.5 U 1.6 0.59 0.66 120 140
0.2 U 0.5 U 0.2 J 1.8 4.4 0.5 U 0.5 U 14 16
0.12 J+ 10.1 9.4 1.8 6.7 2.7 2.1 4300 3300
0.2 U 0.25 J 0.19 J 1.2 1.5 0.5 U 0.5 U 92 94
0.2 U 5 5.2 0.5 UJ 0.29 J 2.8 2.9 300 330
0.79 J- 11 12.8 0.58 2.1 0.5 UJ 0.6 120 140
0.073 J 0.16 J 0.14 J 0.69 0.63 J+ 0.5 U 0.5 U 67 68
0.2 U 3.6 2.8 0.6 1.1 0.5 U 0.23 J 45 100
0.27 J+ 0.5 U 0.5 U 25.7 25 1.5 1.5 520 530
0.085 J+ 1 1.1 J+ 0.95 J+ 0.91 J+ 0.5 UJ 0.5 U 170 170
0.2 U 0.24 J 0.43 J 1 J+ 6.3 0.5 U 0.5 U 35 40
0.2 U 9.5 10.5 0.18 J+ 1.6 0.49 J 0.5 U 330 350
0.088 J+ 0.5 U 0.1 J 0.45 J 0.81 J+ 0.5 U 0.5 U 180 180
NA NA NA NA NA NA NA NA NA
0.2 U 6.1 60.1 0.65 8.4 1.3 2.3 150 2900
0.15 J+ 6.1 5.9 0.65 2.9 1.3 1.2 150 150
0.2 U 0.63 J+ 0.56 J+ 61.2 61.3 5.3 5.7 1900 1800
0.13 J+ 5.6 6.8 57.4 49.8 5.8 5.2 2000 2000
0.2 U 0.5 U 0.5 U 4.1 4.5 0.36 J 0.4 J 230 240
0.2 U 1 1 3.6 4.3 0.5 U 0.5 U 120 130
0.11 J+ 0.13 J 0.19 J 3.8 3.7 0.5 U 0.5 U 9.5 9.7
0.2 U 1.6 3 2.4 9.4 0.5 U 0.5 U 140 160
0.073 J+ 0.5 U 0.5 U 4.6 5.2 0.5 U 0.5 U 12 12
Page 10 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium
7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1 NS NS 100 100 20 20 NS NS
NS NS NS NS NS NS NS NS NS
0.071 J+ 7.8 7.6 0.5 U 1.8 J+ 0.56 0.56 180 190
0.075 J+ 0.5 U 0.5 U 1.2 J+ 2.8 0.5 U 0.5 U 46 48
0.13 J+ 2.7 2.5 0.5 U 0.77 0.24 J 0.24 J 180 190
0.2 U 2.2 2.2 1.6 0.34 J 0.61 0.3 J 160 170
0.2 U 0.5 U 0.5 U 1.1 J+ 21.1 0.27 J 0.5 U 16 17
0.2 U 0.72 0.68 J+ 0.72 J+ 1.9 J+ 0.5 U 0.5 U 80 84
0.11 J 0.5 U 0.5 U 2.1 2.1 0.5 U 0.5 U 29 30
0.2 U 0.47 J+ 0.47 J+ 0.82 J+ 0.71 0.5 U 0.5 U 110 120
0.2 U NA 47.3 NA 11.1 NA 1.6 NA 300
0.2 U 0.5 U 0.5 U 1.9 J+ 3.3 0.5 U 0.5 U 64 67
0.2 U 6 4.1 0.25 J+ 0.81 0.6 0.41 J 490 520
0.2 U 0.5 U 14.3 7.3 40.5 0.5 U 0.31 J 24 J+ 34
0.2 U 67.3 71.8 0.27 J 18.5 5.9 6.7 4300 4500
0.2 U 0.5 U 0.1 J 0.93 J+ 1.1 J+ 0.5 U 0.5 U 13 13
0.2 U 5.3 7.1 0.5 UJ 5.7 0.64 1.1 240 420
NA NA NA NA NA NA NA NA NA
0.05 U 670 946 1 U 3.51 4.21 4.39 336 1370
0.2 U 0.5 U 0.13 J 2.3 J+ 3.5 0.5 U 0.5 U 6.5 9.9
0.2 U 6.5 4.9 0.5 U 0.36 J 0.39 J 0.4 J 200 210
0.2 U 4.8 5.2 0.5 U 0.52 0.38 J 0.3 J 990 910
0.2 U 0.18 J 0.12 J 0.41 J 0.56 J+ 0.5 U 0.5 U 32 33
0.11 J 0.16 J 0.5 U 5.1 5.6 0.27 J 0.28 J 290 320
0.2 U 0.1 J 0.12 J 1.1 1.5 J+ 0.5 U 0.5 U 88 95
0.2 U 0.5 U 0.5 U 0.8 0.45 J+ 0.5 U 0.5 U 120 130
0.088 J 0.098 J 0.5 U 0.39 J 0.24 J+ 0.5 U 0.5 U 170 180
0.15 J 0.5 U 0.5 U 1.1 J+ 1.1 J+ 0.5 U 0.5 U 180 180
0.26 0.5 U 0.5 U 1.1 0.74 0.29 J 0.29 J 20 21
0.095 J+ 0.22 J 0.24 J 0.32 J+ 0.54 J+ 0.5 U 0.5 U 270 260
0.2 U 0.5 U 0.5 U 0.68 J+ 0.2 J+ 0.5 U 0.5 U 120 120
0.2 UJ 0.27 J 0.18 J 0.85 J+ 0.9 J+ 0.5 U 0.5 U 120 120
0.2 U 12.4 13.3 0.22 J 0.29 J 0.48 J 0.51 1400 1600
0.2 U 0.5 U 0.5 U 0.69 0.84 J+ 0.5 U 0.5 U 9 9.6
0.2 U 0.5 UJ 3.2 J+ 0.38 J+ 1 0.5 U 0.5 U 54 64
0.2 U 1.8 J+ 2.3 J+ 0.92 J+ 2.4 0.5 U 0.5 U 88 100
0.2 U 0.14 J 0.14 J 0.85 1 0.5 U 0.5 U 190 190
0.2 U 7 7 0.47 J+ 0.45 J 0.38 J 0.38 J 300 300
0.2 U 6.4 J+ 6 J+ 0.5 UJ 0.18 J 0.35 J 0.38 J 300 300
0.2 U 4.1 3.4 0.2 J+ 0.73 0.5 U 0.22 J 180 160
0.081 J+ 0.5 U 0.5 U 1 1 0.44 J 0.53 63 70
0.2 U 0.15 J 0.16 J 0.96 J+ 0.9 0.72 0.71 140 150
0.2 U NA 0.14 J NA 0.66 NA 0.72 80 84
0.072 J 0.5 U 0.5 U 1.7 1.8 J+ 0.5 U 0.5 U 79 82
0.2 U 0.5 UJ 0.37 J 0.62 0.7 J+ 0.5 U 0.5 U 33 35
Page 11 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium
7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6
TDTDTDTDT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
1 NS NS 100 100 20 20 NS NS
NS NS NS NS NS NS NS NS NS
0.078 J+ 0.5 U 0.5 U 1.3 1.6 1.9 2 63 70
0.073 J 11.3 10.7 0.51 J+ 0.28 J+ 1.1 1.1 220 210
0.088 J+ 8.4 8.2 0.5 U 0.21 J 0.63 0.57 320 370
Page 12 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab
7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB
DTDTDTNNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 1000 1000 NS NS NS
0.2 0.2 0.3 0.3 NS NS NS NS NS
0.018 J 0.1 U 1 U 1.8 26 33 1900 J 5000 U 1900 J
0.097 J 0.064 J 11.5 20 10 U 12 72000 211000 282000
0.052 J 0.072 J 1 U 3.8 33 31 1600 J 5000 U 1600 J
0.055 J 0.06 J 31.1 32.4 34 18 107000 36400 143000
0.018 J 0.025 J 7.4 11.5 10 U 23 5000 U 309000 638000
NA NA NA NA NA NA 19900 86100 106000 J+
0.2 U 0.2 U 19 32.1 6 33 NA NA NA
0.027 J 0.1 U 24.1 24 10 U 6.1 J 53900 27200 81100
0.1 U 0.1 U 12.7 12.5 3.6 J+ 3.3 J+ 5000 U 57800 100000
0.1 U NA 24.3 25.2 3.8 J 10 U 5000 U 245000 245000
0.1 U NA 12.1 11.9 10 U 10 U 41600 27000 68600
0.1 U 0.1 U 11.4 18.6 10 U 49 J+ 92400 17000 109000
0.042 J+ 0.048 J+ 1 U 1 U 8.3 J+ 7.5 J 9800 5000 U 9800
0.1 U 0.1 U 41.1 40.5 10 UJ 10 UJ 69800 110000 180000
0.1 U 0.02 J 0.37 J 0.79 J
84 78 28500 5000 U 28500
0.1 U 0.1 U 2.3 2.7 10 U 2.7 J+ 77300 5000 U 77300
0.065 J 0.076 J 0.48 J+ 1.6 J+
11 J+ 12 350000 10000 U 350000
0.1 U 0.1 U 13.4 14.4 10 U 2.9 J 10000 U 10000 U 470000
0.085 J 0.11 1 U 3.9 110 J+ 120 42000 10000 U 42000
0.1 U 0.1 U 31.8 34.6 10 U 5.3 J+ 10000 U 87000 150000
0.1 U 0.1 U 17.2 18.2 10 U 6.4 J 18000 37000 66000
0.016 J 0.032 J 1 U 5.9 14 19 10200 5000 U 10200
0.1 U 0.1 U 20 22 10 U 10 U 5000 U 401000 412000
0.031 J 0.033 J+ 1 U 0.35 J 15 8.9 J 22100 5000 U 22100
0.1 U 0.1 UJ 29.2 29.9 10 UJ 10 U 59000 91300 150000
0.016 J 0.1 U 2.7 4.6 10 U 12 75400 5000 U 75400
0.1 U 0.1 U 0.7 J+ 0.75 J+
10 UJ 10 UJ 28900 5000 U 28900
0.1 U 0.1 U 3.1 3.7 10 U 5.1 J 43200 5000 U 43200
0.095 J 0.09 J 1 U 0.52 J 94 J+ 89 J+ 5000 U 5000 U 5000 U
0.1 U 0.1 U 9.5 10.9 10 U 3.3 J+ 98700 3600 J 102000
0.1 U 0.1 U 0.86 J 7.9
29 27 J+ 25000 5000 U 25000
0.1 U 0.1 U 16.9 21 10 U 4 J+ 148000 35000 183000
0.1 U NA 1.1 2.3 5.8 J 5.4 J 32000 5000 U 32000
NA NA NA NA NA NA 5000 U 618000 1400000
0.1 U 0.03 J 12.3 4 3 J+ 15 J+ 5000 U 618000 1400000
0.1 U 0.1 U 12.3 11.8 3 J+ 10 U 64100 5000 U 64100
0.1 U 0.1 U 0.66 J 1.3
9.8 J+ 2.8 J+ 36300 5000 U 36300
0.016 J 0.1 U 4.3 4.6 14 J+ 29 J+ 72900 5000 U 72900
0.1 U 0.1 UJ 0.37 J 0.84 J
53 60 17600 5000 U 17600
0.094 J 0.1 UJ 2.4 2.4 7.6 J 10 U 50700 5000 U 50700
0.1 U 0.1 U 1 U 1 U 9.8 J+ 14 J+ 2700 J 5000 U 2700 J
0.1 U 0.1 U 13.9 13.9 10 U 10 U 16900 59600 76500
0.041 J 0.054 J 1 U 4.8 30 J+ 28 J+ 9800 5000 U 9800
Page 13 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab
7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB
DTDTDTNNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 1000 1000 NS NS NS
0.2 0.2 0.3 0.3 NS NS NS NS NS
0.1 U 0.1 U 26.9 28 10 U 8.7 J+ 5000 U 47900 129000 J-
0.1 U 0.1 U 1 UJ 3.5 J+5.2 J+ 5.2 J+ 32700 5000 U 32700
0.032 J 0.018 J 11.6 12.1 10 U 7.3 J+ 81000 5000 U 81000
0.017 J 0.1 U 10.9 10.9 6.5 J 15 45400 14900 60300
0.1 U 0.031 J 1 U 1 U 32 35 J+ 1200 J 5000 U 1200 J
0.027 J 0.1 U 5.5 5.5 6.6 J 12 J+ 45400 5000 U 45400
0.041 J 0.04 J 0.42 J+ 0.52 J+
5 J+ 5.3 J+ 5000 U 5000 U 5000 U
0.1 U 0.1 U 2.3 2.8 10 UJ 10 UJ 30600 5000 U 30600
NA 0.1 U NA 67.5 NA 11 J+ NA NA NA
0.1 U 0.1 U 0.39 J 0.62 J
13 8.6 J 4300 J 5000 U 4300 J
0.1 U 0.1 U 7.7 6.8 10 U 7.7 J 96100 J 36600 J 133000 J
0.04 J 0.087 J 1 U 23 18 J+ 64 7800 5000 U 7800
3.1 3.2 0.66 J 2.1
10 U 5.7 J+ 5000 U 1370000 2170000 J
0.02 J 0.02 J 1 U 1 U 35 J+ 19 J+ 2900 J 5000 U 2900 J
0.1 U 0.1 U 16.1 18.5 10 UJ 14 J+ 48200 92500 141000
NA NA NA NA NA NA 5000 U 142000 332000 J+
0.2 U 0.2 U 9.95 4.33 5 U 9 NA NA NA
0.1 U 0.1 U 1 U 1 U 14 J+ 19 J+ 8400 5000 U 8400
0.1 UJ 0.1 U 31.9 34.1 10 U 3.8 J+ 44400 98200 143000 J
0.077 J 0.077 J 3.9 5.3 10 U 200 J 5000 U 217000 800000
0.1 U 0.1 U 1 UJ 1 UJ 10 UJ 10 UJ 28200 5000 U 28200 J+
0.061 J 0.034 J 1.9 J+ 2.1 J+
6.7 J+ 14 J+ 18900 5000 U 18900
0.1 U 0.1 U 4.5 4.7 9.9 J+ 8.8 J+ 40700 5000 U 40700 J-
0.1 U 0.1 U 0.54 J+ 0.6 J+
10 UJ 10 UJ 43400 5000 U 43400
0.1 U 0.1 U 5.8 6.2 10 UJ 10 UJ 53200 5000 U 53200
0.1 U 0.1 U 1 U 1.1 3.3 J+ 6.3 J+ 17000 5000 U 17000
0.1 U 0.1 U 0.53 J 1 U 13 3.3 J 6000 5000 U 6000
0.1 U 0.1 U 8.5 8.6 6.8 J+ 8.6 J+ 73800 5000 U 73800
0.1 U 0.1 U 0.3 J 0.35 J 10 U 10 U 21300 5000 U 21300
0.1 U 0.1 U 3.7 3.8 10 U 10 UJ 31000 5000 U 31000
0.071 J 0.064 J+2.1 2.1 10 U 10 U 5000 U 657000 1080000
0.1 U 0.033 J 0.45 J+ 0.32 J+
4.3 J+ 5.9 J+ 1100 J 5000 U 1100 J
0.1 U 0.02 J 0.94 J 2.8
7.6 J+ 49 J+ 21800 5000 U 21800
0.1 U 0.1 U 1.2 4.1 27 J+ 17 J+ 32800 5000 U 32800
0.1 U 0.1 U 2.1 J+ 2.7
10 UJ 10 UJ 42400 5000 U 42400
0.1 U 0.1 U 12.5 12.8 10 U 4.1 J+ 87800 75600 163000
0.1 U 0.1 U 11.7 12.5 10 UJ 10 UJ 240000 5000 U 240000
0.1 U 0.017 J 7.8 7.8 10 U 9.4 J 65200 55200 120000 J+
0.1 U NA 0.46 J 1.2
3.1 J 4.1 J 5900 5000 U 5900
0.1 U 0.1 U 1.3 1.4 2.7 J 4.1 J+ 14600 5000 U 14600
NA 0.1 U NA 2.1 5.3 J 5.8 J+ 16100 5000 U 16100
0.076 J 0.072 J 1 UJ 1 UJ 10 UJ 10 UJ 57900 5000 U 57900
0.1 U 0.1 U 2.6 J+ 2.6 J+10 UJ 10 UJ 45800 5000 U 45800
Page 14 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab
7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB
DTDTDTNNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS NS NS 1000 1000 NS NS NS
0.2 0.2 0.3 0.3 NS NS NS NS NS
0.1 U NA 1 U 2.7 5.4 J 6.7 J 3100 J 5000 U 3100 J
0.1 U 0.1 U 23.6 22.4 10 U 10 U 5000 U 113000 132000
0.1 U NA 2.1 2.2 10 U 10 U 5000 U 105000 105000
Page 15 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Calcium Chloride Magnesium Methane
Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8
TNTNNTTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS 250000 NS NS NS NS NS 250000 NS
NS NS NS NS NS NS NS NS NS
1170 5300 974 68.3 720 5000 U 2960 J 690 J 100 U
123000 4900 524 2 J+ 230 6920 7830 22800 100 U
1130 3300 610 65.3 940 5000 U 5000 U 1000 UJ 100 U
64000 6400 270 1.2 J+ 83 4040 J 11800 22700 100 U
283000 6400 141 2.6 J+ 73 80200 50300 144000 100 U
NA NA NA 1.4 J+ 48 NA NA NA 100 U
31300 2200 1930 NA NA 18800 19800 17000 NA
32900 2500 571 1.6 J+ 530 8420 9950 13100 100 U
42600 4700 1950 2.3 J+ 200 17000 18200 56300 100 U
94400 8800 57.9 J 201 J 16 J+ 10200 8820 15700 100 U
41600 5300 9370 1.6 J+ 48 J+ 4250 J 9640 83500 100 U
92800 5400 4100 10 UJ 120 43400 18300 87000 100 U
2030 1800 726 10 UJ 51 5000 U 5050 6300 100 U
70100 7200 100 U 2.7 J+ 130 8150 29500 46500 100 U
37700 5300 11700 10 UJ 200 5000 U 14800 132000 100 U
61300 5800 12700 2.7 J+ 20 U 3710 J 14000 136000 100 U
167000 M6 18300 34000 M1 100 320 J+ 9550 12900 231000 1000 UJ
111000 5700 100 U 810 J- 94 J+ 14200 30500 21300 100 U
4870 2600 1310 5400 J- 20 U 4700 J 8280 5200 500 U
69900 M1 4100 258 10 U 20 U 6690 25000 26000 100 U
20400 3100 740 10 U 20 UJ 3760 J 12400 18000 100 U
1460 1900 1330 2.6 J+ 40 5000 U 5000 U 580 J 100 U
83300 6100 J- 112 2.9 J+ 30 130000 75600 48400 J+ 100 U
11000 8900 2210 1.5 J+ 3900 5000 U 7180 2900 100 U
57600 10000 84.4 J 1.8 J+ 1000 4880 J 29200 31100 100 U
24200 2200 3100 12.6 J+ 500 5000 UJ 7670 8200 100 U
6140 4600 775 1.4 J+ 20 U 5000 U 7260 2400 100 U
9430 2800 2270 1.5 J+ 1600 5000 U 16400 1100 100 U
11800 3200 4640 10 UJ 3600 J+ 8380 4040 J 60400 100 U
23800 2200 3150 1.8 J+ 25 5000 U 11900 1900 100 U
4160 5200 3390 2 J+ 120 5000 U 6740 1000 U 100 U
47400 3200 606 10 UJ 190 16600 15300 8700 100 U
13200 5800 7360 2.1 J+ 320 5000 U 6490 36100 100 U
NA NA NA NA NA NA NA NA NA
343000 13100 196 2.2 J+ 160 253000 162000 3000 100 U
27400 5200 4350 3.3 J+ 20 U 8930 9360 39500 100 U
367000 6100 134000 2.9 J+ 26 10600 44000 1420000 100 U
437000 6500 113000 2.3 J+ 46 11400 48000 1310000 100 U
25200 2900 8040 1.8 J+ 20 U 5000 U 6660 84700 100 U
12300 3200 2950 1.9 J+ 110 5000 U 9800 4400 100 U
915 980 J 278 2.4 J+ 20 U 5000 U 5000 U 1000 U 100 U
28000 2100 453 1.3 J+ 21 5000 U 9360 5000 100 U
1390 2900 795 2.1 J+ 23 5000 U 2960 J 1200 100 U
Page 16 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Calcium Chloride Magnesium Methane
Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8
TNTNNTTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS 250000 NS NS NS NS NS 250000 NS
NS NS NS NS NS NS NS NS NS
47800 2400 185 1.7 J+ 20 U 3200 J 9870 15500 100 U
6540 2600 4360 1.7 J+ 20 U 5000 U 5000 U 530 J 100 U
24500 4400 5480 1.7 J+ 84 5000 U 20200 32300 100 U
33600 3000 6240 7.4 J+ 91 4840 J 6940 21500 100 U
2070 6200 6390 1.6 J+ 600 4080 J 6510 36000 J+ 100 U
14600 6300 9720 1.7 J+ 12 J+ 5000 U 4800 J 23800 J+ 100 U
2170 6800 2760 1.5 J+ 140 5000 U 5970 26500 100 U
14100 6700 6390 24.4 13 J 5000 U 8250 33200 100 U
17500 NA 127 NA NA 162000 133000 NA NA
5040 5700 5840 1.2 J+ 20 UJ 5000 U 4620 J 31000 100 U
25600 6400 5810 2 J+ 18 J 64400 28300 25900 100 U
2780 8100 1160 1.3 J+ 20 U 5000 U 4430 J 980 J 100 U
758000 J- 9800 100 U 10 UJ 59 188000 73900 376000 J+100 U
696 2800 431 10 UJ 14 J 5000 U 5000 U 1000 U 100 U
44400 5700 1240 10 UJ 55 34600 29400 23500 100 U
NA NA NA 1.4 J+ 87 NA NA NA 100 U
303000 7400 53 NA NA 9360 27400 21000 NA
858 2300 435 2.1 J+ 480 5000 U 2510 J 1000 U 100 U
46400 2600 50.3 J 1.5 J+ 20 UJ 5000 U 13800 10600 100 U
307000 2000 257 1.9 J+ 75 27700 J 23300 18000 100 U
2010 10700 986 101 12 J 5000 U 6090 1200 J- 100 U
25300 7900 8250 2.5 J+ 20 U 5000 U 9730 86100 100 U
6950 4600 4120 1.1 J+ 20 U 5000 U 5930 720 J 100 U
13800 7100 8850 2 J+ 20 U 5000 U 4160 J 29900 100 U
17100 6600 8750 30.1 32 5000 U 4040 J 26700 100 U
10900 5400 3850 15.7 J+ 18 J+ 5000 U 7750 30900 100 U
889 7000 845 1.5 J+ 54 5000 U 10700 10200 100 U
24300 6500 12900 2.1 J+ 140 J+ 5000 U 8170 44600 100 U
11100 6600 6740 52.3 J 20 U 5000 U 7310 36700 100 U
14000 6600 6950 21.2 J+ 20 U 5000 U 6670 34600 100 U
537000 4900 100 U 1.6 J+ 19 J 17800 25300 7200 100 U
345 7000 246 1 J+ 20 U 5000 U 5000 U 580 J 100 U
2960 J+ 1000 UJ 920 2.6 J+ 24 5000 U 7580 1000 U 100 UJ
5760 1200 1320 1.5 J+ 41 5000 U 10000 1000 U 100 U
12400 2200 3650 10 U 35 5000 U 10900 24600 100 U
72200 J- 2400 648 1.4 J+ 440 4350 J 15500 27600 100 U
72600 J- 2700 955 1.7 J+ 460 4260 J 16800 27000 100 U
56200 6300 3230 10 UJ 250 3910 J 11600 18000 100 U
4290 6400 2940 1.8 J+ 47 J+ 5000 U 6220 19500 100 UJ
9290 6000 5990 33 250 5000 U 7500 37600 100 U
9150 5900 6350 1.8 J+ 320 5000 U 6770 36000 100 U
9340 4200 4670 28.3 20 U 5000 U 3120 J 15700 100 U
6790 13500 16500 1.6 J+ 71 5000 U 2550 J 30100 100 U
Page 17 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Calcium Chloride Magnesium Methane
Nitrogen, NO2 plus
NO3 Potassium Sodium Sulfate Sulfide
7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8
TNTNNTTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS 250000 NS NS NS NS NS 250000 NS
NS NS NS NS NS NS NS NS NS
3930 6000 3110 2 J+ 49 J+ 5000 U 9240 29000 100 U
52700 6200 899 2 J+ 82 J+ 8700 18300 40100 100 U
8160 7500 1080 2 J+ 77 J+ 51300 50100 39500 100 U
Page 18 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
AB-1S 7/9/2015
AB-1D 7/9/2015
AB-2S 7/8/2015
AB-2D 7/8/2015
AB-3D 7/7/2015
AB-3BR 7/23/2015
AB-3BR 7/23/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6S 6/22/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-7I 7/7/2015
AB-7D 7/1/2015
AB-8S 6/20/2015
AB-8D 6/17/2015
AS-1S 6/5/2015
AS-1D 6/5/2015
AS-2S 6/5/2015
AS-2D 6/8/2015
AS-3D 6/5/2015
BG-1S 7/6/2015
BG-1D 7/11/2015
BG-2S 7/10/2015
BG-2D 7/11/2015
BG-2BR 7/17/2015
BG-3S 6/30/2015
BG-3D 7/6/2015
C-2S 6/19/2015
C-2D 6/19/2015
GWA-1S 7/2/2015
GWA-1D 7/2/2015
GWA-2S 6/22/2015
GWA-2BRU 7/10/2015
GWA-2BRU 7/8/2015
GWA-2BR 6/17/2015
GWA-3SA 7/1/2015
GWA-3D 6/17/2015
GWA-4S 7/10/2015
GWA-4D 7/10/2015
GWA-5S 6/18/2015
GWA-5D 7/11/2015
GWA-6S 6/19/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
TOC TDS TSS
NNN
μg/l μg/l μg/l
NS 500000 NS
NS NS NS
900 J 40000 90000
1400 351000 2800 U
640 J+ 30000 32000
2700 241000 7800
4900 946000 63200
1300 NA NA
NA 160000 330000
790 J 159000 30100
720 J 214000 2500 U
1700 296000 13900
1000 U 247000 8200
1000 U 212000 187000
1000 U 41000 21200
3300 326000 11100
1000 U 274000 13300
1000 U 361000 5900
2300 750000 J-390000 J-
2100 390000 J- 9100 J-
1500 62000 J- 120000 J-
2400 280000 J- 11000 J-
1000 UJ 110000 J- 4300 J-
1000 U 25000 U 20600
7300 555000 237000
600 J 87000 7200
1800 261000 2500 U
10100 J 118000 19600
1000 U 57000 2500 U
1000 U 231000 218000
600 J 160000 J+ 14800
530 J 152000 J+ 5500
1000 U 78000 80800
740 J 232000 62700
1000 U 132000 8400
NA NA NA
6900 18100000 792000
910 J 164000 5000 U
1000 U 23000000 7900
1100 2390000 3100 U
1000 U 187000 18100
1000 U 101000 2500 U
1000 U 25000 U 2500 U
1000 U 137000 5600 U
1300 31000 J+ 5000 U
Page 19 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-6D 6/19/2015
GWA-7S 6/19/2015
GWA-7D 6/17/2015
GWA-7BR 7/7/2015
GWA-8S 6/28/2015
GWA-8D 6/28/2015
GWA-9S 6/30/2015
GWA-9D 7/1/2015
GWA-9BR 7/10/2015
GWA-10S 7/2/2015
GWA-10D 7/3/2015
GWA-20S 7/11/2015
GWA-20D 7/16/2015
GWA-22S 7/10/2015
GWA-22D 7/10/2015
GWA-22BR 7/21/2015
GWA-22BR 7/21/2015
GWA-23S 7/10/2015
GWA-23D 7/16/2015
GWA-23BR 7/17/2015
MW-1S 6/29/2015
MW-1D 6/29/2015
MW-2D 6/30/2015
MW-3S 6/30/2015
MW-3D 6/30/2015
MW-4D 6/18/2015
MW-5S 6/25/2015
MW-5D 6/18/2015
MW-6S 6/18/2015
MW-6D 6/18/2015
MW-7BR 7/10/2015
MW-8S 6/30/2015
MW-8I 7/1/2015
MW-8D 7/1/2015
MW-9 7/6/2015
MW-9D 7/2/2015
MW-9D 7/1/2015
MW-9BR 7/2/2015
MW-10 6/23/2015
MW-11SR 7/2/2015
MW-11DR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
TOC TDS TSS
NNN
μg/l μg/l μg/l
NS 500000 NS
NS NS NS
1000 U 184000 J+ 15000
1000 U 65000 J+ 2500 U
800 J 176000 23000
1000 U 141000 11200
1000 U 85000 29000
1000 U 128000 119000
8600 60000 5600
1000 U 26000 8500
NA NA NA
1000 U 109000 2500 U
3000 185000 38800
1000 U 31000 31300
8300 2900000 25200
1000 U 25000 U 11900
6800 214000 13100
2200 NA NA
NA 360000 5000 U
1000 U 27000 21900
670 J 196000 2500 U
820 J 790000 39700
1000 U 60000 14800
1000 U 197000 2500 U
1000 U 92000 20400
1000 U 118000 2500 U
1000 U 141000 2500 U
1000 U 113000 8400 J+
14700 58000 2500 U
15300 186000 2500 U
1000 U 121000 12300 J+
1000 U 129000 4600 J+
1300 1180000 7000
1000 U 25000 U 42300
1000 U 77000 35200
1000 U 111000 29600
1000 U 114000 4700
1000 U 243000 24100
1000 U 223000 10400
570 J 107000 88000
1000 U 69000 J 5000 U
1000 U 25000 U 2500 U
8500 140000 16700
790 J 87000 5900
1000 U 138000 2500 U
Page 20 of 21
Table 10-6. Groundwater Sample Results
Sample Name Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
MW-15 6/23/2015
MW-15D 6/18/2015
MW-15BR 6/23/2015
General Notes:
μg/l - micrograms per liter
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
U -- Not detected above the reporting detection limit.
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North Carolina Department of Environment and Natural Resources
Division of Water Resources 02L Groundwater Quality Standards
and Interim Maximum Allowable Concentrations (IMACs). April
2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North Carolina , lists Interim Maximum Allowable
Concentrations (IMACs). The IMACs were issued in 2010 and
2011, however NCDENR has not established a 02L standard for
these constituents as described in 15A NCAC 02L.0202(c). For this
reason, IMACs are noted in this report for reference only.
NA - Not analyzed or not reported by analytical laboratory
Total Organic
Carbon
Total Dissolved
Solids
Total Suspended
Solids
TOC TDS TSS
NNN
μg/l μg/l μg/l
NS 500000 NS
NS NS NS
1000 U 227000 20300
640 J 241000 10600 J+
1600 232000 2500 U
Page 21 of 21
Table 10-7. Groundwater Speciation Results
Arsenate Arsenic Arsenite As(III) As(V) Chromium Chromium (VI) Chromium (VI) Fe(II) Fe(III) Ferrous Iron Iron Manganese
ARSENATE 7440-38-2 ARSENITE 7784-46-5 10103-60-3 7440-47-3 18540-29-9 18540-29-9 1345-25-1 1309-37-1 15438-31-0 7439-89-6 7439-96-5
TTTTTTDTTTTTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
Matrix Sample Name Sample Date
Groundwater AB-2D 7/8/2015 0.682 0.682 0.5 UJ NA NA 13.4 11 NA NA NA 30 R 143 1.85 J
Groundwater AB-2S 7/8/2015 0.568 0.568 0.5 UJ NA NA 2.16 J+ 0.02 U NA NA NA 30 R 273 J+ 249
Groundwater AB-3D 7/7/2015 0.5 UJ 0.5 UJ 0.301 J NA NA 57.4 42 NA NA NA 30 UJ 130 0.719 J+
Groundwater AB-5D 7/8/2015 0.464 J+ 0.464 J+ 0.5 UJ NA NA 3.73 J+ 3.3 NA NA NA 30 R 47.1 J+ 0.544 J+
Groundwater AB-6BRU 7/2/2015 NA NA NA 0.2 U 0.235 NA NA 2 11.7 20 U NA NA NA
Groundwater AB-6S 7/1/2015 1.25 1.25 0.5 UJ NA NA 1.12 J+ 0.21 NA NA NA 41 243 7.29
Groundwater AB-7D 7/1/2015 1.75 1.75 0.5 UJ NA NA 32.9 26 NA NA NA 40 U 43.6 J+ 2 U
Groundwater AB-7I 7/7/2015 0.5 UJ 0.5 UJ 0.5 UJ NA NA 7.86 0.38 NA NA NA 30 UJ 115 74.7
Groundwater AS1-D 7/1/2015 0.5 U 0.354 0.215 J- NA NA 974 810 NA NA NA 40 U 87.7 J 0.322 J
Groundwater AS1-S 7/1/2015 1.21 1.21 0.5 UJ NA NA 0.774 J+ 0.031 NA NA NA 40 U 90.4 J 2280
Groundwater AS-2D 7/1/2015 0.304 J 0.304 0.5 UJ NA NA 22.5 19 NA NA NA 40 U 204 2 U
Groundwater AS-2S 7/1/2015 0.5 U 0.5 U 0.5 UJ NA NA 2.15 0.014 J NA NA NA 144 170 674
Groundwater AS-3D 7/1/2015 0.685 0.685 0.5 UJ NA NA 28.3 19 NA NA NA 40 U 62.9 J+ 0.0955 J
Groundwater AS-3S 7/7/2015 0.834 J+ 0.834 J+ 0.5 UJ NA NA 3.13 1.6 NA NA NA 30 UJ 40.8 J+ 731
Groundwater C-2D 6/25/2015 NA NA NA 0.2 U 1.18 J+ NA NA 2.53 29 J- 20 U NA NA NA
Groundwater C-2S 6/25/2015 NA NA NA 0.2 U 0.2 U NA NA 0.273 20 U 9.1 J- NA NA NA
Groundwater GWA-22S 7/10/2015 0.748 0.748 0.5 U NA NA 1.05 NA NA NA NA 40 U 26.5 J 42.9
Groundwater GWA-23BR 7/17/2015 0.5 U 0.5 U 0.5 U NA NA 15.1 13 NA NA NA NA 223 2 U
Groundwater GWA-23D 7/16/2015 0.808 0.808 0.5 U NA NA 56.3 51 NA NA NA 30 UJ 100 U 2 U
Groundwater GWA-6D 6/24/2015 NA NA NA 0.2 U 0.584 NA NA 20.6 20 U 20 U NA NA NA
Groundwater GWA-6S 6/25/2015 NA NA NA 0.2 U 0.2 U NA NA 0.102 7.3 J- 20 U NA NA NA
Groundwater GWA-9D 7/1/2015 0.487 J 0.487 0.5 UJ NA NA 0.822 J+ 0.043 NA NA NA 95 135 78
Groundwater GWA-9S 6/30/2015 0.312 J 0.312 0.5 UJ NA NA 0.445 J+ 0.033 NA NA NA NA 3150
Groundwater MW-10 6/29/2015 0.273 J 0.273 J- 0.5 UJ NA NA 1.67 0.2 NA NA NA NA 420 54.5
Groundwater MW-11DR 7/2/2015 NA NA NA 0.2 U 0.2 U NA NA 1.68 20 U 9.3 NA NA NA
Groundwater MW-11SR 7/2/2015 NA NA NA 0.2 U 0.2 U NA NA 1.3 39.8 20 U NA NA NA
Groundwater MW-13 6/30/2015 0.5 U 0.547 0.404 J- NA NA 0.602 J+ 0.02 U NA NA NA NA 8950
Groundwater MW-14 6/30/2015 0.5 U 0.5 U 0.5 UJ NA NA 1.23 J+ 0.76 NA NA NA NA 2.92
Groundwater MW-15 6/29/2015 0.322 J 0.322 J- 0.5 UJ NA NA 5.06 4.3 NA NA NA NA 216 J+ 17.3
Groundwater MW-1D 6/29/2015 0.5 U 0.5 UJ 0.262 J- NA NA 0.905 J+ 0.48 NA NA NA NA 463
Groundwater MW-1S 6/29/2015 0.5 U 0.269 J- 0.459 J- NA NA 0.294 J+ 0.02 U NA NA NA NA 22400 2780
Groundwater MW-8D 7/1/2015 0.5 U 0.5 U 0.5 UJ NA NA 3.38 0.5 NA NA NA 101 1530 22.5
Groundwater MW-8I 7/1/2015 0.5 U 0.5 U 0.5 UJ NA NA 1.78 J+ 0.024 NA NA NA 40 U 802 3.65
Groundwater MW-8S 6/30/2015 0.189 J 0.189 0.5 UJ NA NA 0.402 J+ 0.25 NA NA NA NA 51.7
Groundwater MW-9 7/6/2015 0.5 UJ 0.324 J+ 0.227 J NA NA 2.61 0.54 NA NA NA 30 UJ 108 5.94
Groundwater MW-9BR 7/2/2015 NA NA NA 0.2 U 0.829 NA NA 4.2 28.1 6.8 NA NA NA
Groundwater MW-9D 7/1/2015 0.5 U 0.5 U 0.5 UJ NA NA 29.6 28 NA NA NA 40 U 92.9 J 0.138 J
Groundwater MW-9D 7/2/2015 NA NA NA 0.2 U 0.303 NA NA 22.1 101 678 NA NA NA
Analyte
CAS RN
Fraction
Result Unit
Page 1 of 2
Table 10-7. Groundwater Speciation Results
Matrix Sample Name Sample Date
Groundwater AB-2D 7/8/2015
Groundwater AB-2S 7/8/2015
Groundwater AB-3D 7/7/2015
Groundwater AB-5D 7/8/2015
Groundwater AB-6BRU 7/2/2015
Groundwater AB-6S 7/1/2015
Groundwater AB-7D 7/1/2015
Groundwater AB-7I 7/7/2015
Groundwater AS1-D 7/1/2015
Groundwater AS1-S 7/1/2015
Groundwater AS-2D 7/1/2015
Groundwater AS-2S 7/1/2015
Groundwater AS-3D 7/1/2015
Groundwater AS-3S 7/7/2015
Groundwater C-2D 6/25/2015
Groundwater C-2S 6/25/2015
Groundwater GWA-22S 7/10/2015
Groundwater GWA-23BR 7/17/2015
Groundwater GWA-23D 7/16/2015
Groundwater GWA-6D 6/24/2015
Groundwater GWA-6S 6/25/2015
Groundwater GWA-9D 7/1/2015
Groundwater GWA-9S 6/30/2015
Groundwater MW-10 6/29/2015
Groundwater MW-11DR 7/2/2015
Groundwater MW-11SR 7/2/2015
Groundwater MW-13 6/30/2015
Groundwater MW-14 6/30/2015
Groundwater MW-15 6/29/2015
Groundwater MW-1D 6/29/2015
Groundwater MW-1S 6/29/2015
Groundwater MW-8D 7/1/2015
Groundwater MW-8I 7/1/2015
Groundwater MW-8S 6/30/2015
Groundwater MW-9 7/6/2015
Groundwater MW-9BR 7/2/2015
Groundwater MW-9D 7/1/2015
Groundwater MW-9D 7/2/2015
Analyte
CAS RN
Fraction
Result Unit
Manganese Mn(II) Mn(IV) Se(IV) Se(VI) Selenate Selenite
7439-96-5 1344-43-0 1313-13-9 10102-18-8 13410-01-0 SELENATE SELENITE
TTTTTTT
μg/l μg/l μg/l μg/l μg/l μg/l μg/l
4.87 NA NA NA NA 2 U 2 U
346 NA NA NA NA 2 U 2 U
5.89 J+ NA NA NA NA 3.32 J+ 1.18 J+
1.51 J+ NA NA NA NA 2 U 2 U
NA 5 U 66.4 0.5 U 0.5 U NA NA
39 J+ NA NA NA NA 1.56 J+ 2.44 J+
1.21 J+ NA NA NA NA 2 UJ 1.22 J+
89.9 J+ NA NA NA NA 2 UJ 2 UJ
1.62 J+ NA NA NA NA 2 UJ 2 UJ
2200 NA NA NA NA 2 UJ 2 UJ
5.25 J+ NA NA NA NA 2 UJ 0.999 J+
662 NA NA NA NA 2 UJ 2 UJ
5.85 J+ NA NA NA NA 2 UJ 1.1 J+
878 J+ NA NA NA NA 2.65 J+ 2 UJ
NA 11.1 14.5 0.5 U 0.5 U NA NA
NA 688 28.7 0.5 U 0.924 NA NA
44.2 NA NA NA NA 2 U 2 U
10.8 NA NA NA NA 2 U 1.4 J
2 UNANANANA2 U2 U
NA 5 U 5.24 0.5 U 0.437 NA NA
NA 1600 200 0.5 U 0.5 U NA NA
81.6 NA NA NA NA 2 UJ 3.62 J+
3040 NA NA NA NA 2 UJ 2.27 J+
41.3 NA NA NA NA 2 UJ 3.73 J+
NA 8.6 5.52 0.5 U 0.613 NA NA
NA 32.2 1 U 0.5 U 0.538 NA NA
6930 NA NA NA NA 2 UJ 5.05 J+
3.72 J+ NA NA NA NA 2 UJ 2.51 J+
19.2 NA NA NA NA 2.27 J+ 8.53 J+
504 NA NA NA NA 2 UJ 4.91 J+
2850 NA NA NA NA 2 UJ 6.47 J+
41.2 J+ NA NA NA NA 2 UJ 2 UJ
31 J+ NA NA NA NA 2 UJ 2 UJ
42.7 NA NA NA NA 2 UJ 1.69 J+
8.03 J+ NA NA NA NA 2 UJ 2 U
NA 5 U 5.62 0.5 U 0.5 U NA NA
3.19 J+ NA NA NA NA 2 UJ 1.31 J+
NA 5 U 18.9 0.5 U 0.5 U NA NA
Page 2 of 2
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Antimony Antimony Arsenic Arsenic Boron Boron Chromium Chromium Cobalt Cobalt Iron
7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-42-8 7440-42-8 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7439-89-6
DTDTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS 10 10 700 700 10 10 NS NS 300
1 1 NS NS NS NS NS NS 1 1 NS
Sample DNE*me Sample Date
AB-1D 7/9/2015 1.5 6.3 DNE* DNE* DNE* DNE*21.2 49.2 DNE*2.9 DNE*
AB-1S 7/9/2015 2.8 3.2 DNE* DNE* DNE* DNE* DNE* DNE*16.2 15.9 DNE*
AB-2D 7/8/2015 DNE* DNE* DNE* DNE* DNE* DNE*12.1 13 DNE* DNE* DNE*
AB-2S 7/8/2015 3.4 3.1 DNE* DNE* DNE* DNE* DNE* DNE*15.9 17.1 DNE*
AB-3BR 7/23/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.64 DNE*
AB-3D 7/7/2015 DNE* DNE* DNE* DNE* DNE* DNE*45.3 51 DNE* DNE* DNE*
AB-4D 7/8/2015 1.4 1.2 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AB-5D 6/20/2015 DNE*1.2 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AB-6BRU 6/22/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AB-6BRU 7/2/2015 DNE*2.5 DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.8 DNE*
AB-6S 6/22/2015 1.7 1.8 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AB-7D 7/1/2015 7.2 J+ 7.5 DNE* DNE* DNE* DNE*26.4 24.7 DNE* DNE* DNE*
AB-7I 7/7/2015 3.6 DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.5 1.6 DNE*
AB-8D 6/17/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AB-8S 6/20/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
AS-1D 6/5/2015 2.7 3 DNE* DNE* DNE* DNE*830 903 DNE* DNE* DNE*
AS-1S 6/5/2015 DNE* DNE* DNE* DNE*1900 2200 DNE* DNE*5.3 5.4 DNE*
AS-2D 6/8/2015 1.3 J+DNE* DNE* DNE* DNE* DNE*20.7 22.5 DNE* DNE* DNE*
AS-2S 6/5/2015 DNE* DNE* DNE* DNE* DNE* DNE*10.2 44.8 10.1 12.4 314
AS-3D 6/5/2015 1.2 1.6 DNE* DNE* DNE* DNE*20.9 23.5 DNE* DNE* DNE*
BG-1D 7/11/2015 3.9 3.3 DNE* DNE* DNE* DNE*28.7 32.3 1.3 1.3 DNE*
BG-1S 7/6/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.9 3 DNE*
BG-2BR 7/17/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
BG-2D 7/11/2015 DNE* DNE* DNE* DNE* DNE* DNE*55.9 57.5 DNE* DNE* DNE*
BG-2S 7/10/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
BG-3D 7/6/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
BG-3S 6/30/2015 1.4 J+ 1.3 J+DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
C-2D 6/19/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
C-2S 6/19/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*42.5 39.7 DNE*
GWA-10D 7/3/2015 DNE*1.1 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-10S 7/2/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*10.3 10 DNE*
GWA-1D 7/2/2015 2.6 3.2 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-1S 7/2/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE*11.6 DNE*2.1 DNE*
GWA-20D 7/16/2015 DNE* DNE* DNE* DNE* DNE* DNE*144 186 DNE*1.9 DNE*
GWA-20S 7/11/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE*133 3 12.7 DNE*
GWA-22BR 7/21/2015 DNE* DNE* DNE* DNE* DNE* DNE*49.5 108 DNE* DNE* DNE*
GWA-22D 7/10/2015 DNE*1.4 DNE* DNE* DNE* DNE*171 174 DNE*3.4 DNE*
GWA-22S 7/10/2015 3.5 2.2 DNE* DNE* DNE* DNE* DNE* DNE*1.2 1.3 DNE*
GWA-23BR 7/17/2015 DNE* DNE* DNE* DNE* DNE* DNE*13.4 15.6 DNE* DNE* DNE*
GWA-23D 7/16/2015 DNE* DNE* DNE* DNE* DNE* DNE*53.6 55 DNE* DNE* DNE*
GWA-23S 7/10/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*3.1 3.3 DNE*
GWA-2BR 6/17/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-2BRU 7/8/2015 22.4 DNE* DNE* DNE* DNE* DNE*22.9 DNE* DNE* DNE* DNE*
GWA-2BRU 7/10/2015 DNE*18.2 DNE* DNE* DNE* DNE* DNE*46 DNE* DNE* DNE*
GWA-2S 6/22/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Page 1 of 6
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Antimony Antimony Arsenic Arsenic Boron Boron Chromium Chromium Cobalt Cobalt Iron
7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-42-8 7440-42-8 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7439-89-6
DTDTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS 10 10 700 700 10 10 NS NS 300
1 1 NS NS NS NS NS NS 1 1 NS
Sample DNE*me Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-3D 6/17/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.2 1.1 DNE*
GWA-3SA 7/1/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*19.8 18.4 DNE*
GWA-4D 7/10/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-4S 7/10/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.4 1.7 DNE*
GWA-5D 7/11/2015 DNE* DNE* DNE* DNE* DNE* DNE*11.9 24.5 DNE* DNE* DNE*
GWA-5S 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*4.6 4.5 DNE*
GWA-6D 6/19/2015 DNE* DNE* DNE* DNE* DNE* DNE*21 24.8 DNE* DNE* DNE*
GWA-6S 6/19/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*25.3 27.6 DNE*
GWA-7BR 7/7/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-7D 6/17/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-7S 6/19/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-8D 6/28/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-8S 6/28/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*2 66.8 DNE*
GWA-9BR 7/10/2015 DNE*4.5 DNE*10.7 DNE* DNE* DNE*40.6 DNE* DNE* DNE*
GWA-9D 7/1/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
GWA-9S 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*51 50.1 DNE*
MW-10 6/23/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-11DR 7/2/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-11SR 7/2/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-13 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*24.3 23.7 15000
MW-14 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-15 6/23/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.3 DNE*
MW-15BR 6/23/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-15D 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-1D 6/29/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-1S 6/29/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*60.7 61 30600
MW-2D 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-3D 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-3S 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-4D 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-5D 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-5S 6/25/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*2.2 1.9 DNE*
MW-6D 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-6S 6/18/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-7BR 7/10/2015 DNE* DNE* DNE* DNE* DNE* DNE*23.3 24.7 DNE* DNE* DNE*
MW-8D 7/1/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*1.1 DNE*
MW-8I 7/1/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-8S 6/30/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-9 7/6/2015 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-9BR 7/2/2015 1.3 2.3 DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
MW-9D 7/1/2015 16.8 5.4 DNE* DNE* DNE* DNE*24.8 20.6 DNE* DNE* DNE*
MW-9D 7/2/2015 2.6 2.7 DNE* DNE* DNE* DNE*26.3 27 DNE* DNE* DNE*
General Notes:
μg/l - micrograms per liter
Page 2 of 6
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Antimony Antimony Arsenic Arsenic Boron Boron Chromium Chromium Cobalt Cobalt Iron
7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-42-8 7440-42-8 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7439-89-6
DTDTDTDTDTD
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
NS NS 10 10 700 700 10 10 NS NS 300
1 1 NS NS NS NS NS NS 1 1 NS
Sample DNE*me Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
DNE* - Does not exceed
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North CaroliDNE* Department of Environment and DNE*tural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs). April 2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North CaroliDNE*, lists Interim Maximum
Allowable Concentrations (IMACs). The IMACs were issued in 2010
and 2011, however NCDENR has not established a 02L standard
for these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
Page 3 of 6
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Sample DNE*me Sample Date
AB-1D 7/9/2015
AB-1S 7/9/2015
AB-2D 7/8/2015
AB-2S 7/8/2015
AB-3BR 7/23/2015
AB-3D 7/7/2015
AB-4D 7/8/2015
AB-5D 6/20/2015
AB-6BRU 6/22/2015
AB-6BRU 7/2/2015
AB-6S 6/22/2015
AB-7D 7/1/2015
AB-7I 7/7/2015
AB-8D 6/17/2015
AB-8S 6/20/2015
AS-1D 6/5/2015
AS-1S 6/5/2015
AS-2D 6/8/2015
AS-2S 6/5/2015
AS-3D 6/5/2015
BG-1D 7/11/2015
BG-1S 7/6/2015
BG-2BR 7/17/2015
BG-2D 7/11/2015
BG-2S 7/10/2015
BG-3D 7/6/2015
BG-3S 6/30/2015
C-2D 6/19/2015
C-2S 6/19/2015
GWA-10D 7/3/2015
GWA-10S 7/2/2015
GWA-1D 7/2/2015
GWA-1S 7/2/2015
GWA-20D 7/16/2015
GWA-20S 7/11/2015
GWA-22BR 7/21/2015
GWA-22D 7/10/2015
GWA-22S 7/10/2015
GWA-23BR 7/17/2015
GWA-23D 7/16/2015
GWA-23S 7/10/2015
GWA-2BR 6/17/2015
GWA-2BRU 7/8/2015
GWA-2BRU 7/10/2015
GWA-2S 6/22/2015
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
Iron Manganese Manganese Thallium Thallium Vanadium Vanadium Sulfate
Total Dissolved
Solids
7439-89-6 7439-96-5 7439-96-5 7440-28-0 7440-28-0 7440-62-2 7440-62-2 14808-79-8 TDS
TDTDTDTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
300 50 50 NS NS NS NS 250000 500000
NS NS NS 0.2 0.2 0.3 0.3 NS NS
370 DNE* DNE* DNE* DNE*11.5 20 DNE* DNE*
510 260 250 DNE* DNE* DNE*1.8 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*31.1 32.4 DNE* DNE*
1700 310 330 DNE* DNE* DNE*3.8 DNE* DNE*
4440 DNE*87 DNE* DNE*19 32.1 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*7.4 11.5 DNE*946000
DNE* DNE* DNE* DNE* DNE*24.1 24 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*12.7 12.5 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*12.1 11.9 DNE* DNE*
970 DNE* DNE* DNE* DNE*11.4 18.6 DNE* DNE*
730 DNE* DNE* DNE* DNE*24.3 25.2 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*41.1 40.5 DNE* DNE*
380 77 85 DNE* DNE* DNE* DNE* DNE* DNE*
DNE*130 140 DNE* DNE*2.3 2.7 DNE* DNE*
DNE*140 150 DNE* DNE*0.37 J 0.79 J DNE* DNE*
DNE* DNE* DNE* DNE* DNE*13.4 14.4 DNE* DNE*
660 1700 1900 DNE* DNE*0.48 J+ 1.6 J+DNE*750000 J-
DNE* DNE* DNE* DNE* DNE*31.8 34.6 DNE* DNE*
2090 580 640 DNE* DNE* DNE*3.9 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*17.2 18.2 DNE* DNE*
1500 DNE* DNE* DNE* DNE*20 22 DNE*555000
2200 240 300 DNE* DNE* DNE*5.9 DNE* DNE*
760 J DNE* DNE* DNE* DNE*2.7 4.6 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*29.2 29.9 DNE* DNE*
DNE*360 370 DNE* DNE* DNE*0.35 J DNE* DNE*
930 DNE*63 DNE* DNE*3.1 3.7 DNE* DNE*
DNE*240 240 DNE* DNE*0.7 J+ 0.75 J+DNE* DNE*
DNE* DNE* DNE* DNE* DNE*9.5 10.9 DNE* DNE*
DNE*580 600 DNE* DNE* DNE*0.52 J DNE* DNE*
DNE* DNE* DNE* DNE* DNE*7.7 6.8 DNE* DNE*
DNE*240 250 DNE* DNE*0.39 J 0.62 J DNE* DNE*
720 DNE* DNE* DNE* DNE*16.9 21 DNE* DNE*
1800 DNE*110 DNE* DNE*0.86 J 7.9 DNE* DNE*
660 DNE* DNE*3.1 3.2 0.66 J 2.1 376000 J+ 2900000
9500 150 320 DNE* DNE* DNE*23 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*9.95 4.33 DNE* DNE*
2600 DNE*120 DNE* DNE*16.1 18.5 DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*3.9 5.3 DNE*790000
DNE* DNE* DNE* DNE* DNE*31.9 34.1 DNE* DNE*
530 81 82 DNE* DNE* DNE* DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*12.3 11.8 DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE* DNE*
1500 DNE*61 DNE* DNE* DNE*4 DNE*18100000
590 56 95 DNE* DNE*1.1 2.3 DNE* DNE*
Page 4 of 6
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Sample DNE*me Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
GWA-3D 6/17/2015
GWA-3SA 7/1/2015
GWA-4D 7/10/2015
GWA-4S 7/10/2015
GWA-5D 7/11/2015
GWA-5S 6/18/2015
GWA-6D 6/19/2015
GWA-6S 6/19/2015
GWA-7BR 7/7/2015
GWA-7D 6/17/2015
GWA-7S 6/19/2015
GWA-8D 6/28/2015
GWA-8S 6/28/2015
GWA-9BR 7/10/2015
GWA-9D 7/1/2015
GWA-9S 6/30/2015
MW-10 6/23/2015
MW-11DR 7/2/2015
MW-11SR 7/2/2015
MW-13 6/30/2015
MW-14 6/30/2015
MW-15 6/23/2015
MW-15BR 6/23/2015
MW-15D 6/18/2015
MW-1D 6/29/2015
MW-1S 6/29/2015
MW-2D 6/30/2015
MW-3D 6/30/2015
MW-3S 6/30/2015
MW-4D 6/18/2015
MW-5D 6/18/2015
MW-5S 6/25/2015
MW-6D 6/18/2015
MW-6S 6/18/2015
MW-7BR 7/10/2015
MW-8D 7/1/2015
MW-8I 7/1/2015
MW-8S 6/30/2015
MW-9 7/6/2015
MW-9BR 7/2/2015
MW-9D 7/1/2015
MW-9D 7/2/2015
General Notes:
μg/l - micrograms per liter
Iron Manganese Manganese Thallium Thallium Vanadium Vanadium Sulfate
Total Dissolved
Solids
7439-89-6 7439-96-5 7439-96-5 7440-28-0 7440-28-0 7440-62-2 7440-62-2 14808-79-8 TDS
TDTDTDTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
300 50 50 NS NS NS NS 250000 500000
NS NS NS 0.2 0.2 0.3 0.3 NS NS
DNE*11600 9200 DNE* DNE*4.3 4.6 1310000 2390000
420 13600 12700 DNE* DNE*0.66 J 1.3 1420000 23000000
DNE* DNE* DNE* DNE* DNE*2.4 2.4 DNE* DNE*
DNE*92 120 DNE* DNE*0.37 J 0.84 J DNE* DNE*
DNE* DNE* DNE* DNE* DNE*13.9 13.9 DNE* DNE*
DNE*200 190 DNE* DNE* DNE* DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*26.9 28 DNE* DNE*
1100 1100 1300 DNE* DNE* DNE*4.8 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*10.9 10.9 DNE* DNE*
440 DNE* DNE* DNE* DNE*11.6 12.1 DNE* DNE*
790 DNE* DNE* DNE* DNE* DNE*3.5 J+DNE* DNE*
1300 69 96 DNE* DNE*5.5 5.5 DNE* DNE*
DNE*760 720 DNE* DNE* DNE* DNE* DNE* DNE*
450 DNE* DNE* DNE* DNE* DNE*67.5 DNE* DNE*
DNE*83 90 DNE* DNE*2.3 2.8 DNE* DNE*
DNE*3000 2900 DNE* DNE*0.42 J+ 0.52 J+DNE* DNE*
DNE* DNE* DNE* DNE* DNE*0.46 J 1.2 DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE*2.1 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*1.3 1.4 DNE* DNE*
15700 8700 8300 DNE* DNE* DNE* DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*2.6 J+ 2.6 J+DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE*2.7 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*2.1 2.2 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*23.6 22.4 DNE* DNE*
DNE*430 530 DNE* DNE*1.9 J+ 2.1 J+DNE* DNE*
30800 2600 2600 DNE* DNE* DNE* DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*4.5 4.7 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*5.8 6.2 DNE* DNE*
DNE*53 68 DNE* DNE*0.54 J+ 0.6 J+DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE*1.1 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*8.5 8.6 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*0.53 J DNE* DNE* DNE*
DNE* DNE* DNE* DNE* DNE*3.7 3.8 DNE* DNE*
DNE* DNE* DNE* DNE* DNE* DNE*0.35 J DNE* DNE*
DNE* DNE* DNE* DNE* DNE*2.1 2.1 DNE*1180000
2700 DNE* DNE* DNE* DNE*1.2 4.1 DNE* DNE*
2100 DNE* DNE* DNE* DNE*0.94 J 2.8 DNE* DNE*
DNE*54 57 DNE* DNE*0.45 J+ 0.32 J+DNE* DNE*
DNE* DNE* DNE* DNE* DNE*2.1 J+ 2.7 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*7.8 7.8 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*11.7 12.5 DNE* DNE*
DNE* DNE* DNE* DNE* DNE*12.5 12.8 DNE* DNE*
Page 5 of 6
Table 10-8. Exceedance of North Carolina 2L Standards for Groundwater Sample Results
Sample DNE*me Sample Date
Analyte
CAS RN
Fraction
Result Unit
15A NCAC 02L STANDARD
IMAC*
T - Total
D - Dissolved
N - Fraction not applicable
Comparison Criteria:
Qualifier Notes:
U -- Not detected above the reporting
detection limit.
J -- Estimated Concentration
J+ -- Estimated concentration, biased high.
J- --Estimated concentration, biased low.
DNE* - Does not exceed
NS - No applicable standard for this parameter
shading + bold - indicates exceedance of NC 2L or IMAC Criteria.
North CaroliDNE* Department of Environment and DNE*tural
Resources Division of Water Resources 02L Groundwater Quality
Standards and Interim Maximum Allowable Concentrations
(IMACs). April 2013
*NOTE: The IMAC value is shown where there is no applicable 02L
standard. Appendix #1 of 15A NCAC Subchapter 02L
Classifications and Water Quality Standards Applicable to the
Groundwaters of North CaroliDNE*, lists Interim Maximum
Allowable Concentrations (IMACs). The IMACs were issued in 2010
and 2011, however NCDENR has not established a 02L standard
for these constituents as described in 15A NCAC 02L.0202(c). For
this reason, IMACs are noted in this report for reference only.
Iron Manganese Manganese Thallium Thallium Vanadium Vanadium Sulfate
Total Dissolved
Solids
7439-89-6 7439-96-5 7439-96-5 7440-28-0 7440-28-0 7440-62-2 7440-62-2 14808-79-8 TDS
TDTDTDTNN
μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l μg/l
300 50 50 NS NS NS NS 250000 500000
NS NS NS 0.2 0.2 0.3 0.3 NS NS
Page 6 of 6
Table 10-9. Range of Constituent Concentrations and Comparison to Range of Reported
Background and Regional Concentrations – Groundwater Beneath Ash Basin and Within
Waste Boundary
Constituent
Background
Groundwater
Concentrations
(Range, μg/L)
Regional Groundwater
Concentrations
(Range, μg/L)
Groundwater
Concentrations Beneath
the Ash Basin and Within
Waste Boundary
(Range, μg/L)
Antimony <1 to 1.04 0.22J to 7.5
Chromium <1 to 14 0.5 to 80 0.9J+ to 51
Cobalt <1 0.15J to 17.1
Iron <10 to 790 0 to 98,000 56 to 4,400
Manganese <5 to 413 Average 102 4J to 330
pH 5.0 to 5.9* 4.6 to 10.3* 5.1 to 11.91*
TDS 10,000 to 120,000 30,000 to 946,000
Vanadium NA 0.1 to 14.8 0.79J to 40.5
Notes:
1. μg/L = micrograms per liter
2. J = Estimated concentration
3. U = Not detected above the reporting detection limit
4. NA = No data available
5. * = Standard Units, SU
6. TDS: Total Dissolved Solids
Table 10-10. Range of Constituent Concentrations and Comparison to Range of Reported
Background and Regional Concentrations – Groundwater Beneath Ash Storage Area
Constituent
Background
Groundwater
Concentrations
(Range, μg/L)
Regional Groundwater
Concentrations
(Range, μg/L)
Groundwater
Concentrations Beneath
the Ash Storage Area
(Range, μg/L)
Antimony <1 to 1.04 0.21J to 3
Boron <50 to <100 <0.01 to 0.59 27J to 2,200
Chromium <1 to 14 0.5 to 80 3.2J+ to 903
Cobalt <1 0.16J to 12.4
Iron <10 to 790 0 to 98,000 33J to 2,090
Manganese <5 to 413 Average 102 3.7J to 1,900
pH 5.0 to 5.9* 4.6 to 10.3* 5.1 to 12.2*
Vanadium NA 0.1 to 14.8 <1 to 34.6
Notes:
1. μg/L = micrograms per liter
2. J = Estimated concentration
3. NA = No data available
4. * = Standard Units, SU

Table 10-11. Range of Constituent Concentrations and Comparison to Range of Reported
Background and Regional Concentrations – Groundwater Beneath Cinder Storage Area
Constituent
Background
Groundwater
Concentrations
(Range, μg/L)
Regional Groundwater
Concentrations
(Range, μg/L)
Groundwater Concentrations
Beneath the Cinder Storage
Area
(Range, μg/L)
Cobalt <1 <0.5 to 39.7
Manganese <5 to 413 Average 102 9.1 to 600
pH 5.0 to 5.9* 4.6 to 10.3* 4.2 to 9.4*
Vanadium NA 0.1 to 14.8 0.52J to 10.9
Notes:
1. μg/L = micrograms per liter
2. J = Estimated concentration
3. U = Not detected above the reporting detection limit
4. NA = No data available
5. TDS: Total Dissolved Solids
6. * = Standard Units = SU

Table 10-12. Range of Constituent Concentrations and Comparison to Range of Reported
Background and Regional Concentrations – Groundwater Beyond Ash Basin Waste
Boundary and within Compliance Boundary
Constituent
Background
Groundwater
Concentrations
(Range, μg/L)
Regional Groundwater
Concentrations
(Range, μg/L)
Groundwater Concentrations
Beyond Ash Basin Waste
Boundary and within
Compliance Boundary
(Range, μg/L)
Antimony <1 to 1.04 0.17J to 18.2
Arsenic <1 to <2 0.12J to 10.7
Chromium <1 to 14 0.5 to 80 0.32J+ to 186
Cobalt <1 0.14J to 66.8
Iron <10 to 790 0 to 98,000 28J+ to 30,800
Manganese <5 to 413 Average 102 3.3J+ to 12,700
pH 5.1 to 5.9* 4.6 to 10.3* 3.5 to 12.5
Thallium <0.2 0.017J to 3.2
Vanadium NA 0.32J+ to 67.5
Sulfate 120 to <1,000 530J to 1,420,000
TDS 10,000 to 120,000 <25,000 to 23,000,000
Notes:
1. μg/L = micrograms per liter
2. J = Estimated concentration
3. U = Not detected above the reporting detection limit
4. NA = No data available
5. TDS: Total Dissolved Solids
6. * = Standard Units = SU

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Page 1 of 1
Table 11-1. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Riverbend Steam Station
Plastic
Limit (PL)
Liquid
Limits (LL)
Plasticity
Index (PI)Coarse7 Fine8 Coarse9 Medium10 Fine11 Silt12 Clay13
AB-1D Jar 18.5-20 Tan-Brown Elastic Silt - - 31.0 - - - 0.0 0.3 0.5 7.2 12.7 30.7 48.6 - 1.3% -F
AB-1D UD 75-77 Olive-Brown Silty Sand SM 2.705 23.6 30 41 11 0.0 9.5 16.1 11.7 20.6 34.2 7.9 41.6% 22% 8.16E-07 M1
AB-1S UD 61-63 Red-Brown Elastic Silt with Sand MH 2.701 23.6 42 69 27 0.0 0.5 4.6 7.4 14.1 31.6 41.8 41.4% 3% 8.12E-07 F
AB-2D Jar 48.5-50 Red-Brown Elastic Silt - - 28.4 - - - 0.0 6.7 1.4 6.5 15.9 34.3 35.2 - 4% -F
AB-2D UD 83-85 Olive-Brown Sandy Silt ML 2.848 36.7 NP 44 NP 0.0 0.0 0.5 2.3 35.6 53.7 7.9 52.4% 17% 5.04E-05 M1
AB-2S UD 30-32 Red-Brown Sandy Elastic Silt MH 2.729 33.4 43 62 19 0.0 2.1 6.1 8.9 12.4 39.1 31.4 50.0% 4% 1.06E-05 F
AB-3D Jar 13.5-15 Red-Brown Clayey Sand - - 12.6 - - - 0.0 11.3 8.9 23.4 21.0 8.5 26.9 - - - F
AB-3S UD 8-10 Red-Brown Clayey Sand with Gravel SC 2.651 28 55 27 0.0 16.0 12.5 30.0 17.1 4.3 20.1 -14% - F
AB-4D Jar 13.5-15 Red-Brown Sandy Elastic Silt - - 24.4 - - - 0.0 0.6 0.7 9.5 21.2 27.4 40.6 -3% - F
AB-4S UD 18-20 Red-Brown Clayey Sand SC 2.629 13.5 23 49 26 0.0 1.4 3.1 21.8 27.1 7.4 39.2 43.9%- 5.75E-05 A / F
AB-5D Jar 28.5-30 Fly Ash - - 29.0 - - - 0.0 11.3 14.0 15.6 19.5 33.9 5.7 -24% - A
AB-5SL UD 59-61 Red-Brown Sandy Lean Clay CL 2.672 16.7 25 45 20 0.0 9.7 4.0 13.4 21.4 17.3 34.2 32.7%-9.32E-07 M1
AB-6BRU Jar 23.5-25 Red-Brown Elastic Silt - - 34.2 - - - 0.0 1.9 1.8 7.6 14.3 30.5 43.9 -2% -F
AB-6BRU UD 93-95 Orange-Brown Sandy Elastic Silt MH 2.624 48.9 41 54 13 0.0 0.0 0.9 10.5 18.5 44.0 26.1 56.3%5% 1.56E-06 M1
AB-6S UD 23-24.2 Orange-Brown Clayey Sand SC 2.669 12.0 20 37 17 0.0 3.6 6.0 22.1 27.1 13.2 28.0 46.1%-1.02E-04 F
AB-7D Jar 3.5-5 Fly Ash - - 52.4 - - - 0.0 1.0 1.1 2.8 29.3 53.3 12.5 -14% -A
AB-7S UD 25-27 Whitish-Red Silty Sand SM 2.669 20.9 29 47 18 0.0 0.1 2.7 28.7 24.0 18.7 25.8 40.6%6% 4.82E-05 M1
AB-8S UD 2.2-4.5 Red-Brown Elastic Silt MH 2.658 40.7 49 77 28 0.0 0.0 0.0 0.6 3.3 37.5 58.6 55.4%1% 9.13E-05 M1
AB-8S UD 28-30 Orange-Brown Elastic Silt with Sand MH 2.700 52.6 41 51 10 0.0 0.0 0.1 2.8 23.4 61.9 11.8 59.8%13% 3.33E-06 M1
AB-8S UD 43-45 Light-Brown Silt with Sand ML 2.681 35.8 38 45 7 0.0 0.0 0.0 1.9 18.5 70.4 9.2 48.9%12% 2.04E-05 M2
AS-1S UD 40-42 Fly Ash ML 2.134 31.6 NP NV NP 0.0 0.2 0.0 0.7 23.0 72.0 4.1 51.8%15% 1.33E-04 A
AS-2S UD 8-10 Fly Ash ML 2.193 46.8 NP NV NP 0.0 0.0 0.8 0.7 8.2 81.2 9.1 52.9%7% 2.15E-05 A
AS-2S UD 53-55 Grey-Red Sandy Elastic Silt MH 2.687 23.9 29 50 21 0.0 3.8 3.2 18.2 23.2 25.7 25.9 42.0%5% 1.03E-06 M1
AS-2S UD 88-90 White-Brown Silty Sand SM 2.683 20.1 NP NV NP 0.0 0.0 4.5 24.7 38.1 27.3 5.4 37.7%26% 7.37E-05 M1
AS-3D Jar 23.5-25 Fly Ash - - 18.6 - - - 0.0 2.0 4.5 11.7 30.8 42.7 8.3 -19% -A
AS-3S UD 25-27 Fly Ash ML 2.259 29.4 NP NV NP 0.0 1.1 1.8 3.7 15.0 65.3 13.1 48.5%10% 1.84E-05 A
BG-1S UD 10-12.3 Red-Brown Micaceous Sandy Elastic Silt MH 2.676 30.7 NP 53 NP 0.0 0.0 2.7 20.7 25.6 32.6 18.4 51.0%12% 7.42E-06 M1
BG-1S UD 35-37.3 Red-Brown Silty Sand SM 2.689 36.2 45 47 2 0.0 0.0 8.5 22.0 27.4 33.8 8.3 51.8%21% 6.93E-05 M1
C-2D Jar 8.5-10 Black-Brown Silty Sand with PWR - - 23.8 - - - 0.0 17.1 10.8 18.4 26.7 15.1 11.9 -20% -A
C-2S UD 35-37 White-Brown Silty Sand SM 2.676 30.7 NP NV NP 0.0 0.0 1.7 25.1 37.7 32.0 3.5 48.7%26% 2.36E-04 M1
GWA-10BRU Jar 3.5-5 Orange-Brown Elastic Silt with Gravel - - 21.5 - - - 0.0 20.9 1.3 2.2 22.6 18.1 34.9 ---M1
GWA-10S UD 21-23 Brown Elastic Silt with Sand MH 2.709 38.0 56 86 30 0.0 0.0 1.0 10.3 12.6 29.2 46.9 53.6%2% 3.86E-06 M1
GWA-1S UD 47-47.75 Grey-White Silty Sand SM 2.923 15.0 NP 27 NP 0.0 0.2 0.8 14.0 49.5 31.3 4.2 34.2%26% 1.90E-05 M1
GWA-2S UD 50-50.5 -M1/M2
GWA-3S UD 24-25 Light Brown Clayey Sand with Gravel SC 2.638 11.5 19 27 8 0.0 15.5 16.8 23.7 20.3 17.1 6.6 48.8%27% 2.51E-06 M2
GWA-4D Jar 5-6.5 Red-Brown Elastic Silt - - 31.2 - - - 0.0 0.0 3.2 13.3 11.5 41.3 30.7 -4% -M1
GWA-4D Jar 55-56.5 Tan-White Silty Sand - - 14.8 - - - 0.0 2.3 16.2 31.8 29.6 15.7 4.4 -30% -M2
GWA-4S UD 32-34 White-Brown Silty Sand SM 2.660 NP 30 NP 0.0 1.6 20.4 21.8 33.3 19.6 3.3 -30% -M1
GWA-5D Jar 83.5-85 Reddish-White Sandy Elastic Silt - - 27.0 - - - 0.0 0.0 1.1 21.2 21.0 38.4 18.3 -12% -M1
GWA-5D Jar 168.5-169.6 Orange-Brown Sandy Elastic Silt - - 23.6 - - - 0.0 0.0 2.7 21.1 24.5 37.5 14.2 -15% -M2
GWA-5S UD 74-76 Orange-Brown Sandy Silt ML 2.651 40 45 5 0.0 0.0 2.0 20.7 24.3 39.6 13.4 -16% -M1
GWA-6D Jar 48.5-50 Red-Brown and White Sandy Silt - - 31.0 - - - 0.0 0.0 1.2 21.7 26.8 36.9 13.4 -16% -M1
GWA-6D Jar 128.5-129.6 Olive-White Sandy Elastic Silt - - 21.1 - - - 0.0 0.0 0.3 3.6 20.1 60.7 15.3 -10% -M2
GWA-6S UD 13.5-15.5 Yellow-Brown Clayey Sand SC 2.657 16.2 25 40 15 0.0 1.3 2.8 30.1 25.7 21.4 18.7 32.2%12% 4.14E-06 M1
GWA-6S UD 33.5-35.5 Light Purple Sandy Silt ML 2.665 30.3 36 48 12 0.0 0.0 0.0 9.0 39.3 40.6 11.1 52.8%18% 9.85E-05 M1
GWA-7D Jar 38.5-40 Olive-Brown and White Sandy Elastic Silt - - 31.3 - - - 0.0 0.0 0.7 12.3 19.1 44.2 23.7 -6% -M1
GWA-7D Jar 83.5-84 White-Brown and Black Silty Sand - - 18.8 - - - 0.0 0.0 0.2 22.4 28.9 36.9 11.6 -18% -M2
GWA-7S UD 20-22 Whitish-Brown Sandy Silt ML 2.680 40.1 29 44 15 0.0 0.1 4.3 15.0 13.8 44.6 22.2 51.6%8% 3.99E-06 M1
GWA-8D Jar 18.5-20 Red-Brown Sandy Silt - - 50.9 - - - 0.0 0.0 0.2 4.9 30.6 44.2 20.1 -10% -M1
GWA-8D Jar 69-70.1 Olive-Brown Silty Sand - - 11.3 - - - 0.0 1.5 5.9 20.6 28.9 34.5 8.6 -20% -M2
GWA-8S UD 20-22 Orange-Brown Sandy Silt ML 2.644 39.3 28 35 7 0.0 0.0 6.7 5.6 36.6 34.1 17.0 51.5%14% 2.96E-05 M1
GWA-9BRA UD 14-16 Red-Brown Elastic Silt with Sand MH 2.694 34.4 37 79 42 0.0 0.3 0.5 4.2 10.0 13.8 71.2 49.5%-7.11E-07 M1
MW-9BR UD 10-12 Yellow-White Elastic Silt MH 2.603 39.3 32 57 25 0.0 0.0 0.0 0.2 8.2 33.3 58.3 49.8%0.75% 9.50E-08 M1
MW-9BR UD 18-20 Grey Sandy Silt ML 2.642 23.4 25 27 2 0.0 0.7 0.9 1.3 27.8 48.2 21.1 37.5%
8%7.32E-08 M1
MW-9BR UD 55-56 Orange-Brown Silt with Sand ML 2.747 16.2 33 38 5 0.0 0.3 2.5 6.0 15.4 68.9 6.9 32.3% 14% 1.59E-05 M2
Notes:
1. ASTM Standard D 2487, Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
Hydrostratigraphy% Gravel % Sand % FinesSpecific
Gravity2
Natural
Moisture
Content3
(%)
Atterberg Limits4 Grain Size5
Total
Porosity2 (%)
Vertical Hydraulic
Conductivty6, kv20,
(cm/sec)
Estimated
Specific
Yield/Effective
Porosity14 (%)
2" Recovery, Loose Material; No Permeability or Hydrometer
Borehole Sample # Depth (ft)Material Description USCS1
Table 11-1. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Riverbend Steam Station
Plastic
Limit (PL)
Liquid
Limits (LL)
Plasticity
Index (PI)Coarse7 Fine8 Coarse9 Medium10 Fine11 Silt12 Clay13
Hydrostratigraphy% Gravel % Sand % FinesSpecific
Gravity2
Natural
Moisture
Content3
(%)
Atterberg Limits4 Grain Size5
Total
Porosity2 (%)
Vertical Hydraulic
Conductivty6, kv20,
(cm/sec)
Estimated
Specific
Yield/Effective
Porosity14 (%)
Borehole Sample # Depth (ft)Material Description USCS1
2. ASTM Standard D 854, "Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer"
3. ASTM Standard D 2216, "Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass
4. ASTM Standard D 4318, "Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
5. ASTM Standard D 422, "Standard Test Method for Particle-Size Analysis of Soils
6. ASTM Standard D 5084, "Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter"
7. Coarse Gravel: 19.0mm – 75mm
8. Fine Gravel: 4.75mm – 19.0mm
9. Coarse Sand: 2.0mm – 4.75mm
10. Medium Sand: 0.425mm – 2.0mm
11. Fine Sand: 0.075mm – 0.425mm
12. Silt: 0.005mm – 0.075mm
13. Clay: <0.005mm
14. All columns directly derived from laboratory analyses except "Estimated Specific Yield/Effective Porosity."
Specific yield/effective porosity estimated from soil testing using Fetter/Bear diagrams (Johnson, 1967).
15. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value.
16. AB-6BRU represented as AB-6D on geotechnical lab reports due to re-name event after sample submission
17. GWA-9BRA represented as GWA-9D on lab reports due to re-name event after sample submission
18. GWA-10BRU represented as GWA-10D on lab report due to re-name event after sample submission
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e
h
o
l
e

Te
s
t

C
a
t
e
g
o
r
y

De
p
t
h

1

o
f

T
e
s
t

(f
t

b
g
s
)

De
p
t
h

2

o
f

T
e
s
t

(f
t

b
g
s
)

Ve
r
t
i
c
a
l

Hy
d
r
a
u
l
i
c

Co
n
d
u
c
t
i
v
i
t
y

'
k
'

Ho
r
i
z
o
n
t
a
l

H
y
d
r
a
u
l
i
c

C
o
n
d
u
c
t
i
v
i
t
y

'
k
'

(c
m
/
s
e
c
)

Hy
d
r
o
s
t
r
a
t
i
g
r
a
p
h
i
c

La
y
e
r

AB
-
5
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

15
3

15
9

-
1.
6
0
E
-
0
5

TZ

AB
-
5
S
L

Fl
u
s
h

B
o
t
t
o
m

35

-
1.
5
0
E
-
0
4

-
A
AB
-
5
S
L

Fl
u
s
h

B
o
t
t
o
m

63

-
1.
2
0
E
-
0
4

-
M1

AB
-
5
S
L

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

37

42

-
7.
8
0
E
-
0
6

A
AB
-
7
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

13
1

13
8

-
1.
4
0
E
-
0
4

M2

AS
-
2
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

17
7

18
3

-
1.
3
0
E
-
0
5

TZ

BG
-
1
S

Fl
u
s
h

B
o
t
t
o
m

40

-
2.
0
0
E
-
0
5

-
M1

BG
-
1
S

Fl
u
s
h

B
o
t
t
o
m

12

-
4.
5
0
E
-
0
6

-
M1

BG
-
1
S

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

40

45

-
5.
0
0
E
-
0
5

M1

BG
-
1
S

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

12

16
.
3

-
5.
9
0
E
-
0
5

M1

BG
-
2
B
R

Pa
c
k
e
r

T
e
s
t

20
3

21
3

-
6.
8
0
E
-
0
6

BR

BG
-
2
B
R

Pa
c
k
e
r

T
e
s
t

19
3
.
5

20
0

-
9.
5
0
E
-
0
6

BR

BG
-
2
B
R

Pa
c
k
e
r

T
e
s
t

18
5

19
1
.
5

-
6.
7
0
E
-
0
7

BR

BG
-
3
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

96
.
4

10
1
.
4

-
1.
5
0
E
-
0
5

TZ

GW
A
-
1
0
D

We
l
l

P
o
i
n
t

-

C
o
n
s
t
a
n
t

H
e
a
d

13
1
.
5

13
6
.
5

-
3.
2
0
E
-
0
4

BR

GW
A
-
2
0
B
R

Pa
c
k
e
r

T
e
s
t

27
5
.
5

28
2

-
2.
0
0
E
-
0
5

BR

GW
A
-
2
0
B
R

Pa
c
k
e
r

T
e
s
t

28
4
.
5

29
1

-
No

T
a
k
e

a
t

M
a
x
i
m
u
m

P
r
e
s
s
u
r
e

o
f

1
8
0

p
s
i

BR

GW
A
-
2
0
B
R

Pa
c
k
e
r

T
e
s
t

30
0
.
5

30
7

-
No

T
a
k
e

a
t

M
a
x
i
m
u
m

P
r
e
s
s
u
r
e

o
f

1
3
5

p
s
i

BR

GW
A
-
2
B
R

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

74

80

-
1.
7
0
E
-
0
5

BR

GW
A
-
2
B
R

Pa
c
k
e
r

T
e
s
t

11
5
.
6

12
1
.
8

-
5.
1
0
E
-
0
6

BR

GW
A
-
2
B
R

Pa
c
k
e
r

T
e
s
t

10
8

11
4
.
2

-
3.
7
0
E
-
0
7

BR

GW
A
-
2
B
R

Pa
c
k
e
r

T
e
s
t

97

10
3
.
2

-
2.
2
0
E
-
0
7

BR

GW
A
-
3
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

39

45

-
1.
7
0
E
-
0
4

M2

GW
A
-
4
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

11
8

12
3

-
1.
8
0
E
-
0
5

TZ

GW
A
-
5
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

19
1

19
7

-
9.
1
0
E
-
0
6

M2

GW
A
-
6
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

14
3

14
8

-
7.
6
0
E
-
0
5

TZ

GW
A
-
7
B
R

Pa
c
k
e
r

T
e
s
t

14
5

15
1
.
2

-
2.
7
0
E
-
0
6

BR

GW
A
-
7
B
R

Pa
c
k
e
r

T
e
s
t

12
5

13
1
.
2

-
2.
6
0
E
-
0
3

BR

GW
A
-
9
B
R

Pa
c
k
e
r

T
e
s
t

10
7

11
3
.
2

-
2.
0
0
E
-
0
6

BR

GW
A
-
9
B
R

Pa
c
k
e
r

T
e
s
t

95

10
1
.
2

-
2.
8
0
E
-
0
6

BR

GW
A
-
9
B
R

Pa
c
k
e
r

T
e
s
t

76

82
.
2

-
6.
8
0
E
-
0
6

BR

GW
A
-
9
D

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

52

57

-
5.
4
0
E
-
0
6

M2

MW
-
7
B
R

Pa
c
k
e
r

T
e
s
t

22
0

22
6
.
2

-
8.
8
0
E
-
0
6

BR

MW
-
7
B
R

Pa
c
k
e
r

T
e
s
t

20
5

21
1
.
2

-
1.
4
0
E
-
0
5

BR

MW
-
7
B
R

Pa
c
k
e
r

T
e
s
t

19
5

20
1
.
2

-
1.
9
0
E
-
0
4

BR

MW
-
9
B
R

Fl
u
s
h

B
o
t
t
o
m

30

-
5.
8
0
E
-
0
5

-
M1

MW
-
9
B
R

Fl
u
s
h

B
o
t
t
o
m

65

-
4.
3
0
E
-
0
4

-
M2

MW
-
9
B
R

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

30

35

-
7.
0
0
E
-
0
5

M1

MW
-
9
B
R

We
l
l

P
o
i
n
t

-

F
a
l
l
i
n
g

H
e
a
d

65

70

-
6.
9
0
E
-
0
5

M2

MW
-
9
B
R

Pa
c
k
e
r

T
e
s
t

15
4

16
0
.
2

-
5.
1
0
E
-
0
6

BR

MW
-
9
B
R

Pa
c
k
e
r

T
e
s
t

14
7

15
3
.
2

-
4.
6
0
E
-
0
5

BR

N
o
t
e
s
:

1.

R
e
f
e
r

t
o

S
e
c
t
i
o
n

1
1
.
2
.
1

f
o
r

d
i
s
c
u
s
s
i
o
n

o
f

f
i
e
l
d

p
r
o
c
e
d
u
r
e
s

2.

R
e
f
e
r

t
o

A
p
p
e
n
d
i
x

H

f
o
r

c
a
l
c
u
l
a
t
i
o
n

w
o
r
k
s
h
e
e
t
s

3.

F
o
r

t
h
e

p
r
e
s
s
u
r
e

t
e
s
t
,

t
h
e

t
h
i
c
k
n
e
s
s

o
f

s
a
t
u
r
a
t
e
d

m
a
t
e
r
i
a
l

a
b
o
v
e

a

r
e
l
a
t
i
v
e
l
y

i
m
p
e
r
m
e
a
b
l
e

b
e
d

i
s

a
s
s
u
m
e
d

t
o

b
e

6
0
0

f
e
e
t

f
o
r

a

f
r
a
c
t
u
r
e
d

b
e
d
r
o
c
k

s
y
s
t
e
m
.

W
a
t
e
r

fl
o
w

a
t

t
h
i
s

d
e
p
t
h

o
r

g
r
e
a
t
e
r

i
n

s
u
c
h

s
y
s
t
e
m
s

i
s

w
e
l
l

d
o
cu
m
e
n
t
e
d

i
n

t
h
e

P
i
e
d
m
o
n
t

r
e
g
i
o
n

(
D
a
n
i
e
l

e
t

a
l
.
,

1
9
8
9
)

Table 11-3. Slug Test Permeability Results
Borehole Category of
Test
Depth 1 of
Test (ft bgs)
Depth 2 of
Test (ft bgs)
Horizontal
Hydraulic
Conductivity 'k'
(cm/sec)
Hydrostratigraphic
Layer Contractor
AB-1D Slug 193.0 198.0 1.26E-04 TZ Terracon
AB-1S Slug 29.0 44.0 1.91E-05 F Terracon
AB-2D Slug 151.0 156.0 7.46E-04 M2 Terracon
AB-2S Slug 50.0 65.0 2.02E-05 F Terracon
AB-3BR Slug 206.0 211.0 6.15E-06 BR Terracon
AB-3S Slug 13.0 28.0 3.18E-04 F/A Terracon
AB-3D Slug 173.0 178.0 1.98E-05 TZ Terracon
AB-4D Slug 198.5 203.5 7.57E-05 BR Terracon
AB-4S Slug 15.0 30.0 3.37E-05 F/A Terracon
AB-5D Slug 154.0 159.0 4.00E-04 TZ S&ME
AB-5S Slug 9.0 24.0 3.70E-04 A S&ME
AB-5SL Slug 47.0 57.0 3.55E-04 A S&ME
AB-6D/BRU Slug 169.0 174.0 1.40E-04 BR S&ME
AB-6S Slug 50.0 65.0 9.00E-05 F S&ME
AB-7D Slug 142.0 147.0 1.75E-04 M2 ERM
AB-7I Slug 70.0 85.0 6.99E-05 M1 ERM
AB-7S Slug 5.0 20.0 6.41E-03 A/M1 ERM
AB-8D Slug 91.3 96.3 6.87E-04 TZ ERM
AB-8S Slug 16.3 31.3 1.18E-03 M1 ERM
AS-1S Slug 81.0 96.0 3.57E-04 M1 ERM
AS-1D Slug 171.0 176.0 N/A TZ ERM
AS-2D Slug 185.0 190.0 5.66E-05 TZ ERM
AS-2S Slug 74.0 89.0 6.99E-04 M1 ERM
AS-3S Slug 58.8 73.8 1.29E-04 M1 ERM
AS-3SA Slug 60.0 70.0 N/A M1 ERM
AS-3D Slug 139.0 144.0 N/A TZ ERM
BG-1D Slug 194.2 199.2 5.95E-06 TZ ERM
BG-1S Slug 29.7 44.7 7.79E-05 M1 ERM
BG-2BR Slug 203.0 208.0 2.87E-06 BR Terracon
BG-2D Slug 155.0 160.0 4.66E-04 TZ Terracon
BG-2S Slug 49.0 65.0 2.28E-05 M1 Terracon
BG-2D Slug 150.0 155.0 4.15E-04 M2/TZ ERM
BG-3S Slug 22.3 37.3 2.41E-04 M1 ERM
C-1BRU Slug 115.0 120.0 6.62E-07 BR Terracon
BG-3D Slug 100.0 105.0 N/A TZ/BR ERM
C-1S Slug 8.3 18.3 9.87E-04 A/M1 ERM
C-2D Slug 133.0 138.0 1.75E-04 TZ S&ME
C-2S Slug 18.0 33.0 1.20E-03 M1 S&ME
GWA-10D/BRSlug 133.5 138.5 1.30E-03 BR S&ME
Borehole Category of
Test
Depth 1 of
Test (ft bgs)
Depth 2 of
Test (ft bgs)
Horizontal
Hydraulic
Conductivity 'k'
(cm/sec)
Hydrostratigraphic
Layer Contractor
GWA-10S Slug 7.5 22.5 9.65E-04 M1 S&ME
GWA-1D/BRUSlug 72.0 77.0 1.51E-04 BR ERM
GWA-1S Slug 29.3 44.3 6.09E-03 M1 ERM
GWA-20BR Slug 300.6 305.6 1.61E-05 BR Terracon
GWA-20D Slug 253.0 258.0 9.92E-06 BR Terracon
GWA-20S Slug 37.0 52.0 8.56E-06 M1 Terracon
GWA-22BR-A Slug 269.0 274.0 9.99E-05 BR Terracon
GWA-22D Slug 198.0 203.0 1.95E-03 M2 S&ME
GWA-22S Slug 40.0 55.0 1.65E-04 M1 S&ME
GWA-23BR Slug 285.0 290.0 2.90E-05 BR Terracon
GWA-23D Slug 221.0 226.0 2.95E-04 TZ Terracon
GWA-23S Slug 33.0 48.0 1.38E-04 M1 S&ME
GWA-2BR Slug 113.0 123.0 2.13E-04 BR ERM
GWA-2S Slug 35.0 50.0 2.62E-02 M1/M2 ERM
GWA-3D Slug 42.0 47.0 2.35E-03 M2/TZ S&ME
GWA-3SA Slug 24.0 39.0 1.95E-03 M2 S&ME
GWA-4BR Slug 159.0 164.0 3.01E-06 BR Terracon
GWA-4D Slug 120.0 125.0 1.56E-04 TZ Terracon
GWA-4S Slug 17.0 32.0 1.45E-04 M1 Terracon
GWA-2BRU Slug 77.0 82.0 N/A BR ERM
GWA-5D Slug 212.0 217.0 6.47E-05 M2 ERM
GWA-5S Slug 60.0 75.0 N/A M1 ERM
GWA-6D Slug 143.0 148.0 1.10E-05 TZ ERM
GWA-6S Slug 48.0 63.0 5.52E-04 M1 ERM
GWA-7BR Slug 127.0 132.0 1.11E-04 BR ERM
GWA-7D Slug 100.0 105.0 2.67E-04 M2 ERM
GWA-7S Slug 8.2 23.2 2.23E-03 M1 ERM
GWA-8D Slug 111.0 116.0 1.75E-02 TZ S&ME
GWA-8S Slug 8.0 23.0 9.40E-04 M1 S&ME
GWA-9D Slug 62.0 67.0 7.45E-04 M2 S&ME
GWA-9S Slug 5.0 15.0 4.05E-03 M1 S&ME
MW-15D Slug 41.7 46.7 7.71E-04 TZ/BR ERM
MW-15BR Slug 57.5 62.5 N/A BR ERM
MW-7BR Slug 197.5 207.5 N/A BR ERM
MW-9BR Slug 147.0 152.0 4.35E-04 BR S&ME
MW-9D Slug 101.0 106.0 1.35E-04 TZ S&ME
Notes:
1. Slug test data in which test interval bridges hydrostratigraphic layers were not used in the statistical analysis.
2. Refer to Appendix H for procedures and full reports.
Table 11-4. Historic Slug Test Permeability Results
Borehole Category of Test Depth 1 of Test (ft
bgs)
Depth 2 of Test (ft
bgs)
Horizontal
Hydraulic
Conductivity 'k'
(cm/sec)
Hydrostratigraphic
Layer
MW-1S1 Historic Slug 5.0 15.0 5.8E-03 M1
MW-1D1 Historic Slug 54.0 62.0 4.8E-02 M2
MW-2S1 Historic Slug 15.0 25.0 1.5E-02 M1
MW-2D1 Historic Slug 83.0 88.0 3.5E-03 -
MW-3S1 Historic Slug 4.0 14.0 1.7E-02 M1
MW-3D1 Historic Slug 29.5 34.5 1.1E-02 M2
MW-4S1 Historic Slug 10.0 20.0 2.6E-02 S
MW-4D1 Historic Slug 55.0 60.0 1.5E-03 M2
MW-5S1 Historic Slug 5.0 15.0 1.3E-03 S
MW-5D1 Historic Slug 74.0 79.0 2.8E-04 M2
MW-6S1 Historic Slug 5.0 15.0 3.1E-03 S
MW-6D1 Historic Slug 69.5 74.5 1.5E-02 M2
MW-7S1 Historic Slug 38.0 48.0 4.7E-03 M1
MW-7D1 Historic Slug 95.0 100.0 1.5E-03 BR
MW-7SR2 Historic Slug 43.0 63.0 1.5E-05 M1
MW-8S2 Historic Slug 35.0 55.0 1.5E-04 M1
MW-8I2 Historic Slug 98.0 118.0 6.5E-05 M2
MW-8D2 Historic Slug 156.0 166.0 2.1E-04 M2
MW-92 Historic Slug 13.0 28.0 2.1E-04 M1
MW-102 Historic Slug 3.0 18.0 2.6E-04 M1
MW-11SR2 Historic Slug 15.0 30.0 1.2E-03 M1, M2
MW-11DR2 Historic Slug 35.0 40.0 1.2E-03 TZ
MW-122 Historic Slug 3.5 18.5 2.8E-02 M1
MW-132 Historic Slug 3.0 18.0 3.5E-04 M1
MW-142 Historic Slug 3.0 18.0 3.2E-05 M2
MW-152 Historic Slug 3.0 18.0 4.6E-04 M1
Notes:
1. Historic boring logs (Appendix H) were used in the hydrostratigraphic characterization of screen
intervals.
2. Historic boring logs that did not provide Standard Penetration Testing did not receive
hydrostratigraphic characterization.
3. Historic slug test results in which test interval bridges hydrostratigraphic layers were not used in
the statistical analysis.
4. See Appendix H for referenced historic slug test reports.
References:
1. 1 Summary Report of Monitoring Well Installation at Riverbend Steam Station. Developed by
Arcadis, dated January 7, 2007. Arcadis Project No. NC106027.0001
2. 2 Amended Ash Basin Monitoring Well Installation Report. Developed by MACTEC, dated March
30, 2011. MACTEC Project No. 6228-10-5284

Table 11-5. Laboratory Permeability Test Results
Borehole Category of Test Depth 1 of Test
(ft bgs)
Depth 2 of Test
(ft bgs)
Vertical
Hydraulic
Conductivity 'k'
(cm/sec)
Hydrostratigraphic
Layer
AB-1D Laboratory Conductivity 75.0 77.0 8.2E-07 M1
AB-1S Laboratory Conductivity 61.0 63.0 8.1E-07 F
AB-2D Laboratory Conductivity 83.0 85.0 5.0E-05 M1
AB-2S Laboratory Conductivity 30.0 32.0 1.1E-05 F
AB-4S Laboratory Conductivity 18.0 20.0 5.8E-05 F/A
AB-5SL Laboratory Conductivity 59.0 61.0 9.3E-07 M1
AB-6BRU Laboratory Conductivity 93.0 95.0 1.6E-06 M1
AB-6S Laboratory Conductivity 23.0 24.2 1.0E-04 F
AB-7S Laboratory Conductivity 25.0 27.0 4.8E-05 M1
AB-8S Laboratory Conductivity 2.2 4.5 9.1E-05 M1
AB-8S Laboratory Conductivity 28.0 30.0 3.3E-06 M1
AB-8S Laboratory Conductivity 43.0 45.0 2.0E-05 M2
AS-1S Laboratory Conductivity 40.0 42.0 1.3E-04 A
AS-2S Laboratory Conductivity 8.0 10.0 2.2E-05 A
AS-2S Laboratory Conductivity 53.0 55.0 1.0E-06 M1
AS-2S Laboratory Conductivity 88.0 90.0 7.4E-05 M1
AS-3S Laboratory Conductivity 25.0 27.0 1.8E-05 A
BG-1S Laboratory Conductivity 10.0 12.3 7.4E-06 M1
BG-1S Laboratory Conductivity 35.0 37.3 6.9E-05 M1
C-2S Laboratory Conductivity 35.0 37.0 2.4E-04 M1
GWA-10S Laboratory Conductivity 21.0 23.0 3.9E-06 M1
GWA-1S Laboratory Conductivity 47.0 47.5 1.9E-05 M1
GWA-3S Laboratory Conductivity 24.0 25.0 2.5E-06 M2
GWA-6S Laboratory Conductivity 13.5 15.5 4.1E-06 M1
GWA-6S Laboratory Conductivity 33.5 35.5 9.9E-05 M1
GWA-7S Laboratory Conductivity 20.0 22.0 4.0E-06 M1
GWA-8S Laboratory Conductivity 20.0 22.0 3.0E-05 M1
GWA-9BRA Laboratory Conductivity 14.0 16.0 7.1E-07 M1
MW-9BR Laboratory Conductivity 10.0 12.0 9.5E-08 M1
MW-9BR Laboratory Conductivity 18.0 20.0 7.3E-08 M1
MW-9BR Laboratory Conductivity 55.0 56.0 1.6E-05 M2
Notes:
1. Vertical hydraulic conductivity values from laboratory testing in accordance with ASTM Standard D 5084
2. Laboratory conductivity results in which test interval bridges hydrostratigraphic layers were not used in the
statistical analysis.
3. AB-6BRU represented as AB-6D on geotechnical lab reports due to re-name event after sample submission
4. GWA-9BRA represented as GWA-9D on lab reports due to re-name event after sample submission

Table 11-6. Historic Laboratory Permeability Test Result
Borehole Category of Test Depth 1 of
Test (ft bgs)
Depth 2 of
Test (ft bgs)
Vertical
Hydraulic
Conductivity
'k' (cm/sec)
Hydrostratigraphic
Layer
B-202 Historic Laboratory 66.3 66.8 6.90E-06 M1
Note:
1. See Appendix H for referenced historic laboratory permeability report.
Reference:
1. Phase 2 Reconstitution of Design of Ash Pond Designs Work Plan for Riverbend Steam Station. Developed by
URS, dated September 26, 2014. URS Project No. 31829861
Table 11-7. Total Porosity for Upper Hydrostratigraphic Units (A, F, S, M1, and M2)
Hydrostratigraphic Unit N Mean
(%)
Median
(%)
Mean +
1SD (%)
Mean -
1SD (%)
Minimum
(%)
Maximum
(%)
Ash 6 45.2% 44.3% 47.0% 43.3% 43.5% 48.2%
Fill 4 45.0% 45.3% 47.8% 42.2% 41.4% 48.0%
Alluvium (S) 15 43.9% 44.0% 46.1% 41.7% 38.3% 47.4%
M1 27 46.2% 46.0% 50.5% 41.9% 37.4% 55.4%
M2 25 42.8% 43.5% 45.3% 40.4% 36.5% 46.9%
Notes:
1. Total porosity estimated from soil testing, using both Fetter/Bear Diagrams (Johnson, 1967) and results from
Laboratory Conductivity testing.
2. Initial data from Allen (N=6), Buck (N=14), and Cliffside-Rogers (N=5) CSA Investigations were used in
conjunction with two Riverbend samples in the statistical analysis for M2 total porosity.
3. Initial data from Allen (N=6), Buck (N=1), Cliffside-Rogers (N=2), and Dan River (N=6) CSA Investigations used
in the statistical analysis for alluvium total porosity.

Table 11-8. Estimated Effective Porosity/Specific Yield and Specific Storage for Upper Hydrostratigraphic
Units (A, F, S, M1, and M2)
Effective Porosity/Specific Yield (%) Specific Storage
(1/ft)

Hydrostratigraphic
Unit N Mean
(%)
Median
(%)
Mean + 1SD
(%)
Mean - 1SD
(%)
Minimum
(%)
Maximum
(%)
Ash 6 17.0% 17.0% 22.0% 12.0% 10.0% 24.0% -
Fill 6 2.6% 2.5% 3.6% 1.6% 1.3% 4.0% 6.1E-05 - 4.0E-05
Alluvium (S) 17 17.8% 18.5% 29.6% 6.1% 3.0% 40.0% 3.0E-04 - 1.5E-05
M1 25 12.1% 12.0% 19.9% 4.3% 0.8% 26.0% 3.0E-04 - 1.5E-05
M2 7 18.6% 17.5% 26.1% 11.2% 10.0% 30.0% 1.5E-05 - 6.2E-05
Notes:
1. Effective porosity/specific yield estimated from soil testing using Fetter/Bear Diagrams (Johnson, 1967).
2. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value.
3. Specific Storage ranges based on published values (Domenico and Mifflin, 1965). Alluvium and M1 fall within the same range of values.
4. Initial data from Allen (N=5), Buck (N=2), Cliffside-Rogers (N=2), and Dan River (N=8) CSA Investigations were used in the statistical
analysis for alluvium effective porosity/specific yield.
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Page 1 of 1
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Page 1 of 1
Table: 11-12 Hydraulic Gradient
(Vertical)
Well Water Table Elevation
(ft, msl)
Total Well Depth (ft, bgs) Vetrtical Gradient (ft/ft) 1,2
GWA-20D 737.3 258.0
GWA-20S 739.1 53.0
AS-1D 675.4 175.0
AS-1S 678.2 96.0
C-1BRU 549.3 120.0
C-1S 653.3 15.0
GWA-3D 645.5 47.0
GWA-3S 646.2 28.0
AB-3D 700.2 178.0
AB-3S 706.3 28.0
GWA-8D 671.1 116.0
GWA-8S 671.3 23.0
AB-7D 713.5 147.0
AB-7S 714.4 20.0
GWA-7D 671.0 105.0
GWA-7S 670.2 20.0
BG-3D 644.8 105.0
BG-3S 645.0 36.6
Notes:
1. Gradient = Water Table Elevation Deep Well - Water Table Elevation Shallow Well
Total Depth Deep Well - Total Depth Shallow Well
2. Positive gradients represent upward flow and negative gradients represent downward flow.
-0.002
-0.009
-0.035
-0.990
-0.038
-0.040
-0.007
0.009
-0.002
1 of 1
Table 11-13. Groundwater Seepage Velocities.
Well Pair Ash Fill Alluvium M1 M2 TZ BR
MW-8S / MW-9 214.37 54.79 80.03 104.05 48.09 - -
AB-4S / MW-11SR 174.18 44.52 65.03 84.54 39.08 - -
AB-3S / GWA-9S 288.07 73.63 107.55 139.81 64.62 - -
MW-7SR / BG-3S 174.18 44.52 65.03 84.54 39.08 - -
MW-8D / MW-9D -----2.36E+04 - 4.72E+06 -
AB-4D / MW-11DR -----1.89E+04 - 3.78E+06 -
AB-3D / GWA-9D -----2.68E+04 - 5.35E+06 -
MW-7D / BG-3D -----2.05E+04 - 4.09E+06 -
GWA-23BR / MW-9BR ----- -9.86E+04
GWA-23BR / AB-3BR ----- -1.27E+05
GWA-2BR / GWA-9BR ----- -1.07E+08
Notes:
1. Refer to Table 11-9 for horizontal hydraulic conductivity values.
2. Refer to Table 6-10 for horizontal hydraulic gradients.
3. Refer to Table 11-8 for effective porosity/specific yield for upper hydrostratigraphic units; refer to Table 11-11 for effective porosity/specific
yield for lower hydrostratigraphic units.
Regolith (S wells); Seepage Velocity (ft/yr)
Transition Zone (D Wells); Seepage Velocity (ft/yr)
Fractured Bedrock (BR Wells); Seepage Velocity (ft/yr)
Page 1 of 1
Table 12-1. Selection of Human Health COPCs - Groundwaterr
T INORGANIC Aluminum 7429-90-5 86 11 - 7120 - AB-3BR 5 - 100 100 7120 2000 NA NA Y 1
T INORGANIC Antimony 7440-36-0 17 0.17 J 18.2 - GWA-2BRU 0.5 - 1 1 18.2 0.78 NA 1 Y 1
T INORGANIC Arsenic 7440-38-2 27 0.12 J 10.7 - GWA-9BR 0.5 - 1 1 10.7 0.052 10 NA Y 1
T INORGANIC Barium 7440-39-3 100 3.7 J 553 - GWA-20BR 5 - 5 5 553 380 700 NA Y 1
T INORGANIC Beryllium 7440-41-7 20 0.068 J 1.9 - C-2S 0.2 - 1 1 1.9 2.5 NA 4 N 2
T INORGANIC Boron 7440-42-8 46 27 J 2200 - AS-1S 50 - 50 50 2200 400 700 NA Y 1
T INORGANIC Cadmium 7440-43-9 9 0.026 J 0.21 - C-2S 0.08 - 1 1 0.21 0.92 2 NA Y 3
T INORGANIC Chromium (Total) 7440-47-3 43 0.294 J+ 974 - AS-1D 0.5 - 5 5 974 2200 10 NA Y 1
T INORGANIC Cobalt 7440-48-4 65 0.14 J 66.8 - GWA-8S 0.5 - 1 1 66.8 0.6 NA 1 Y 1
T INORGANIC Copper 7440-50-8 34 0.22 J+ 68 J+ MW-8I 1 - 5 5 68 80 1000 NA N 2
T INORGANIC Iron (Fe) 7439-89-6 90 10 - 37700 - MW-13 10 - 100 100 37700 1400 300 NA Y 1
T INORGANIC Lead 7439-92-1 25 0.048 J 7.5 - GWA-20S 0.1 - 1 1 7.5 15 15 NA N 2
T INORGANIC Manganese (Mn) 7439-96-5 90 0.792 J 12700 - GWA-3SA 2 - 50 50 12700 43 50 NA Y 1
T INORGANIC Mercury 7439-97-6 10 0.071 J+ 0.27 J+ C-2S 0.05 - 0.2 0.2 0.27 0.063 1 NA Y 1
T INORGANIC Molybdenum 7439-98-7 68 0.1 J 946 - GWA-22BR 0.5 - 10 10 946 10 NA NA Y 1
T INORGANIC Nickel 7440-02-0 36 0.18 J 61.3 - GWA-3SA 0.5 - 5 5 61.3 39 100 NA Y 1
T INORGANIC Selenium 7782-49-2 24 0.22 J 15.4 - AB-3BR 0.5 - 1 1 15.4 10 20 NA Y 1
T INORGANIC Sodium 7440-23-5 97 1050 - 162000 - GWA-2BRU 50 - 50000 50000 162000 NA NA NA Y 4
T INORGANIC Strontium 7440-24-6 100 9.6 - 4500 - GWA-20D 5 - 5 5 4500 1200 NA NA Y 1
T INORGANIC Thallium 7440-28-0 33 0.016 J 3.2 - GWA-20D 0.1 - 0.2 0.2 3.2 0.02 NA 0.2 Y 1
T INORGANIC Titanium 7440-32-6 0 ND - ND - ND 0.2 - 0.2 0.2 0.2 NA NA NA N 6
T INORGANIC Vanadium 7440-62-2 90 0.32 J+ 67.5 - GWA-9BR 0.3 - 1 1 67.5 8.6 NA 0.3 Y 1
T INORGANIC Zinc 7440-66-6 41 2.7 J+ 200 J GWA-23BR 5 - 10 10 200 600 1000 NA N 2
Notes:
All units are in ug/L
The applicable criteria for chromium III was input as a surrogate for chromium total when none was available.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered per 15A NCAC 02L.
(2) USEPA Regional Screening Level Generic Tables, Residential Tapwaters, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm
Target Risk = 1E-06 and Target Hazard Quotient = 0.1
(3) North Carolina 15A NCAC 02L .0202 Groundwater Standards, Effective April 1, 2013. http://portal.ncdenr.org/web/wq/ps/csu/gwstandards
(4) North Carolina Interim Maximum Allowable Concentrations (IMAC) http://portal.ncdenr.org/web/wq/ps/csu/gwstandards
(5) Rationale for Selection/Deletion:
1 - Contaminant concentration exceeds screening value.
2 - Contaminant concentration and RL are less than screening value.
3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value.
4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant.
Qualifiers:
J - Estimated Concentration
J+ - Concentration Biased High
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
GWQS - Groundwater Quality Standards
IMAC - Interim Maximum Allowable Concentrations
NA - No Criteria/Not Applicable
ND - Not Detected
Q - Data Qualifier
RL - Reporting Limit
Groundwater
COPC?
(Y/N)
Rationale for
Selection or
Deletion
(5)
15A NCAC 02L
.0202 GWQS
(3)
NC IMAC
(4)
Total or
Dissolved
(T or D)
CASRN
Frequency of
Detection
(%)
ContaminantContaminant
Group
Location of
Maximum
Detected
Concentration
Range of
Detection
Limits
Concentration
Used for
Screening
(1)
USEPA
Tapwater RSLs
(2)
Maximum
Reporting Limit
Range of Detection
Minimum
Detected
Concentration
Q
Maximum
Detected
Concentration
Q
Page: 1 of 1
Table 12-2. Selection of Human Health COPCs - Soil
T INORGANIC Aluminum 7429-90-5 100 2070 - 39800 - GWA-9D 5.7 - 229 229 39800 110000 N 2
T INORGANIC Antimony 7440-36-0 0 ND - ND - ND 2.9 - 9.5 9.5 9.5 47 N 2
T INORGANIC Arsenic 7440-38-2 19 1.6 J 35.1 - AB-7S 2.9 - 9.5 9.5 35.1 3 Y 1
T INORGANIC Barium 7440-39-3 99 2.5 J+ 523 - AB-8S 0.57 - 8 8 523 22000 N 2
T INORGANIC Beryllium 7440-41-7 76 0.086 - 2.3 J+ AB-7S 0.06 - 0.8 0.8 2.3 230 N 2
T INORGANIC Boron 7440-42-8 38 2 J 51.7 - AB-8S 2.9 - 88.1 88.1 51.7 23000 N 2
T INORGANIC Cadmium 7440-43-9 0 ND - ND - ND 0.34 - 1.1 1.1 1.1 98 N 2
T INORGANIC Chromium (Total)7440-47-3 99 1.2 J 210 - GWA-9D 0.29 - 11.5 11.5 210 180000 N 2
T INORGANIC Cobalt 7440-48-4 88 3.1 J 102 - GWA-8D 2.9 - 9.5 9.5 102 35 Y 1
T INORGANIC Copper 7440-50-8 99 1.9 - 232 - GWA-1D 0.29 - 11.5 11.5 232 4700 N 2
T INORGANIC Iron (Fe) 7439-89-6 100 4950 - 109000 - GWA-9D 2.3 - 91.6 91.6 109000 82000 Y 1
T INORGANIC Lead 7439-92-1 44 1.8 J 20.9 - GWA-21D 2.9 - 9.5 9.5 20.9 800 N 2
T INORGANIC Manganese (Mn) 7439-96-5 100 6.8 J+ 3320 - AB-4D 0.29 - 11.5 11.5 3320 2600 Y 1
T INORGANIC Mercury 7439-97-6 43 0.0063 J 0.54 - GWA-21D 0.0087 - 0.02 0.02 0.54 4 N 2
T INORGANIC Molybdenum 7439-98-7 9 0.31 J 6.6 - AB-3D 0.57 - 8 8 6.6 580 N 2
T INORGANIC Nickel 7440-02-0 91 0.44 J+ 167 - AB-4D 0.29 - 11.5 11.5 167 2200 N 2
T INORGANIC Selenium 7782-49-2 3 2.4 J 5.6 J GWA-4S 2.9 - 9.5 9.5 5.6 580 N 2
T INORGANIC Sodium 7440-23-5 15 42.4 J 203 J AB-3D 57.5 - 797 797 203 NA Y 5
T INORGANIC Strontium 7440-24-6 76 0.43 J+ 174 - AB-7S 0.57 - 8 8 174 70000 N 2
T INORGANIC Thallium 7440-28-0 0 ND - ND - ND 2.9 - 9.5 9.5 9.5 1.2 Y 1
T INORGANIC Vanadium 7440-62-2 100 5.6 J 209 - GWA-7S 2.9 - 9.5 9.5 209 580 N 2
T INORGANIC Zinc 7440-66-6 97 3.1 J+ 183 - GWA-1D 1.1 - 15.9 15.9 183 35000 N 2
Notes:
All units are in mg/kg
The applicable criteria for chromium III was input as a surrogate for chromium total when none was available.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered.
(2) USEPA Regional Screening Level Generic Tables, Industrial Soil, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm
Target Risk = 1E-06 and Target Hazard Quotient = 0.1
(3) Rationale for Selection/Deletion:
1 - Contaminant concentration exceeds screening value.
2 - Contaminant concentration and RL are less than screening value.
3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value.
4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant.
Qualifiers:
J - Estimated Concentration
J+ - Concentration Biased High
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
NA - No Criteria/Not Applicable
ND - Not Detected
Q - Data Qualifier
RL - Reporting Limit
Soil COPC?
(Y/N)
Rationale for
Selection or
Deletion
(3)
USEPA
Industrial Soils
RSL
(2)
Location of
Maximum
Detected
Concentration
Range of
Detection
Limits
Concentration Used
for Screening
(1)
Maximum
Reporting
LimitQ
Maximum
Detected
Concentration
Q
Total or
Dissolved
(T or D)
CASRN
Frequency of
Detection
(%)
Contaminant
Range of Detection
Minimum
Detected
Concentration
Contaminant
Group
Page: 1 of 1
Table 12-3. Selection of Human Health COPCs - Freshwater
T INORGANIC Aluminum 7429-90-5 100 130 - 310 - SW-3 100 - 100 100 310 6500 8000 N 2
T INORGANIC Antimony 7440-36-0 0 ND - ND - ND 0.5 - 0.5 0.5 0.5 5.6 640 N 2
T INORGANIC Arsenic 7440-38-2 100 0.3 J 2.4 - SW-3 0.5 - 0.5 0.5 2.4 10 10 N 2
T INORGANIC Barium 7440-39-3 100 17 - 76 - SW-3 5 - 5 5 76 1000 200000 N 2
T INORGANIC Beryllium 7440-41-7 0 ND - ND - ND 0.2 - 0.2 0.2 0.2 NA NA N 6
T INORGANIC Boron 7440-42-8 50 530 - 530 - SW-3 50 - 50 50 530 NA NA Y 4
T INORGANIC Cadmium 7440-43-9 50 0.033 J 0.033 J SW-3 0.08 - 0.08 0.08 0.033 NA NA Y 5
T INORGANIC Chromium (Total) 7440-47-3 100 0.38 J 0.41 J S-13 0.5 - 0.5 0.5 0.41 NA NA Y 5
T INORGANIC Cobalt 7440-48-4 100 0.24 J 0.61 - SW-3 0.5 - 0.5 0.5 0.61 3 4 N 2
T INORGANIC Copper 7440-50-8 100 0.86 J 0.92 J S-13 1 - 1 1 0.92 NA NA Y 5
T INORGANIC Iron (Fe) 7439-89-6 100 810 - 1600 - S-13 50 - 50 50 1600 NA NA Y 4
T INORGANIC Lead 7439-92-1 100 0.13 - 0.58 - SW-3 0.1 - 0.1 0.1 0.58 NA NA Y 4
T INORGANIC Manganese (Mn) 7439-96-5 100 110 - 370 - SW-3 5 - 5 5 370 NA NA Y 4
T INORGANIC Mercury 7439-97-6 50 0.000843 J+ 0.000843 J+ S-13 0.0005 - 0.2 0.2 0.000843 NA NA Y 5
T INORGANIC Molybdenum 7439-98-7 100 0.15 J 10.8 - SW-3 0.5 - 0.5 0.5 10.8 160 2000 N 2
T INORGANIC Nickel 7440-02-0 100 0.18 J 3 - SW-3 0.5 - 0.5 0.5 3 25 NA N 2
T INORGANIC Selenium 7782-49-2 50 0.43 J 0.43 J SW-3 0.5 - 0.5 0.5 0.43 NA NA Y 5
T INORGANIC Sodium 7440-23-5 100 6960 - 10800 - SW-3 5000 - 5000 5000 10800 NA NA Y 4
T INORGANIC Strontium 7440-24-6 100 79 - 1200 - SW-3 5 - 5 5 1200 14000 40000 N 2
T INORGANIC Thallium 7440-28-0 50 0.22 - 0.22 - SW-3 0.1 - 0.1 0.1 0.22 0.24 0.47 N 2
T INORGANIC Vanadium 7440-62-2 100 1.2 - 1.4 - S-13 1 - 1 1 1.4 NA NA Y 4
T INORGANIC Zinc 7440-66-6 100 3 J 220 - SW-3 10 - 10 10 220 NA NA Y 4
Notes:
All units are in ug/L
Dissolved concentrations are compared to applicable criteria.
The applicable criteria for chromium III was input as a surrogate for chromium total when none was available.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered.
(2) 15A NCAC 2B or EPA National Water Quality Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupId=38364)
(3) 15A NCAC 2B or EPA National Water Quality Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupId=38364)
(4) Rationale for Selection/Deletion:
1 - Contaminant concentration exceeds screening value.
2 - Contaminant concentration and RL are less than screening value.
3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value.
4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant.
Qualifiers:
J - Estimated Concentration
J+ - Concentration Biased High
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
NA - No Criteria/Not Applicable
ND - Not Detected
Q - Data Qualifier
RL - Reporting Limit
USEPA - United States Environmental Protection Agency
WQC - Water Quality Criteria
WQS - Water Quality Standards
Range of Detection
Minimum
Detected
Concentration
Q
Maximum
Detected
Concentration
Q
Total or
Dissolved
(T or D)
CASRN
Frequency of
Detection
(%)
ContaminantContaminant
Group
Rationale for
Selection or
Deletion
(4)
Location of
Maximum
Detected
Concentration
Range of
Detection
Limits
Concentration
Used for
Screening
(1)
NC Water
Supply (WS)
WQS & USEPA
National WQC
(2)
Surface Water
COPC?
(Y/N)
NC Human
Health (HH)
WQS & USEPA
National WQC
(3)
Maximum
Reporting Limit
Page: 1 of 1
Table 12-4. Selection of Human Health COPCs - Sediment
T INORGANIC Aluminum 7429-90-5 100 2200 - 14500 - S-12 32.8 - 138 138 1.45E+04 7.70E+03 Y 1
T INORGANIC Antimony 7440-36-0 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 3.1 Y 1
T INORGANIC Arsenic 7440-38-2 18 11.2 J 61.8 - S-12 6.6 - 27.6 27.6 61.8 0.67 Y 1
T INORGANIC Barium 7440-39-3 100 21 - 1960 - S-6 3.3 - 13.8 13.8 1960 1500 Y 1
T INORGANIC Beryllium 7440-41-7 82 0.38 J 1.2 - S-11 0.33 - 1.4 1.4 1.2 16 N 2
T INORGANIC Boron 7440-42-8 64 13.1 J 45.1 J S-6 16.4 - 69.1 69.1 45.1 1600 N 2
T INORGANIC Cadmium 7440-43-9 9 0.99 J 0.99 J S-12 0.79 - 3.3 3.3 0.99 7 N 2
T INORGANIC Chromium (Total) 7440-47-3 100 5.5 - 102 - S-12 1.6 - 6.9 6.9 102 12000 N 2
T INORGANIC Cobalt 7440-48-4 100 4.6 J 355 - S-6 6.6 - 27.6 27.6 355 2.3 Y 1
T INORGANIC Copper 7440-50-8 100 4.7 - 60.8 - S-12 1.6 - 6.9 6.9 60.8 310 N 2
T INORGANIC Iron (Fe) 7439-89-6 100 8100 - 92500 - S-6 13.1 - 55.2 55.2 92500 5500 Y 1
T INORGANIC Lead 7439-92-1 73 9.1 - 16.2 - S-12 6.6 - 27.6 27.6 16.2 400 N 2
T INORGANIC Manganese (Mn) 7439-96-5 100 92.8 - 64400 - S-6 1.6 - 69.1 69.1 64400 180 Y 1
T INORGANIC Mercury 7439-97-6 100 0.014 - 0.46 - S-11 0.01 - 0.047 0.047 0.46 0.94 N 2
T INORGANIC Molybdenum 7439-98-7 9 16.4 - 16.4 - S-12 3.3 - 13.8 13.8 16.4 39 N 2
T INORGANIC Nickel 7440-02-0 100 1.3 J 107 - S-12 1.6 - 6.9 6.9 107 150 N 2
T INORGANIC Selenium 7782-49-2 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 39 N 2
T INORGANIC Sodium 7440-23-5 0 ND - ND - ND 328 - 1380 1380 1380 NA N 6
T INORGANIC Strontium 7440-24-6 100 2 J 45.2 - S-6 3.3 - 13.8 13.8 45.2 4700 N 2
T INORGANIC Thallium 7440-28-0 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 0.078 Y 1
T INORGANIC Vanadium 7440-62-2 100 23.2 J 126 - S-12 6.6 - 27.6 27.6 126 39 Y 1
T INORGANIC Zinc 7440-66-6 100 6 J 218 - S-12 6.6 - 27.6 27.6 218 2300 N 2
Notes:
All units are in mg/kg
The applicable criteria for chromium III was input as a surrogate for chromium total when none was available.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered.
(2) USEPA Regional Screening Level Generic Tables, Resident Soil, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm
Target Risk = 1E-06 and Target Hazard Quotient = 0.1
(3) Rationale for Selection/Deletion:
1 - Contaminant concentration exceeds screening value.
2 - Contaminant concentration and RL are less than screening value.
3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value.
4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant.
Qualifiers:
J - Estimated Concentration
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
Q - Data Qualifier
NA - No Criteria/Not Applicable
ND - Not Detected
RL - Reporting Limit
RSL - Regional Screening Level
Sediment
COPC?
(Y/N)
Rationale for
Selection or
Deletion
(3)
Minimum
Detected
Concentration
Q
Maximum
Detected
Concentration
Q
Range of Detection
Location of
Maximum
Detected
Concentration
Range of
Detection
Limits
Concentration
Used for
Screening
(1)
USEPA
Resident Soils
RSL
(2)
Maximum
Reporting Limit
Frequency of
Detection
(%)
Total or
Dissolved
(T or D)
Contaminant CASRNContaminant
Group
Page: 1 of 1
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Rationale for Selection or Deletion
Gr
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Sediment COPC
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Page: 1 of 1
Table 12-6. Selection of Ecological COPCs - Soil
T INORGANIC Aluminum 7429-90-5 100 2070 - 39800 - GWA-9D 5.7 - 229 229 39800 50 7.96E+02 Y 1
T INORGANIC Antimony 7440-36-0 0 ND - ND - ND 2.9 - 9.5 9.5 9.5 3.5 2.71E+00 Y 1
T INORGANIC Arsenic 7440-38-2 19 1.6 J 35.1 - AB-7S 2.9 - 9.5 9.5 35.1 10 3.51E+00 Y 1
T INORGANIC Barium 7440-39-3 99 2.5 J+ 523 - AB-8S 0.57 - 8 8 523 165 3.17E+00 Y 1
T INORGANIC Beryllium 7440-41-7 76 0.086 - 2.3 J+ AB-7S 0.06 - 0.8 0.8 2.3 1.1 2.09E+00 Y 1
T INORGANIC Boron 7440-42-8 38 2 J 51.7 - AB-8S 2.9 - 88.1 88.1 51.7 0.5 1.03E+02 Y 1
T INORGANIC Cadmium 7440-43-9 0 ND - ND - ND 0.34 - 1.1 1.1 1.1 1.6 6.88E-01 N NC
T INORGANIC Chromium (Total)7440-47-3 99 1.2 J 210 - GWA-9D 0.29 - 11.5 11.5 210 0.4 5.25E+02 Y 1
T INORGANIC Cobalt 7440-48-4 88 3.1 J 102 - GWA-8D 2.9 - 9.5 9.5 102 20 5.10E+00 Y 1
T INORGANIC Copper 7440-50-8 99 1.9 - 232 - GWA-1D 0.29 - 11.5 11.5 232 40 5.80E+00 Y 1
T INORGANIC Iron (Fe)7439-89-6 100 4950 - 109000 - GWA-9D 2.3 - 91.6 91.6 109000 200 5.45E+02 Y 1
T INORGANIC Lead 7439-92-1 44 1.8 J 20.9 - GWA-21D 2.9 - 9.5 9.5 20.9 50 4.18E-01 N NC
T INORGANIC Manganese (Mn)7439-96-5 100 6.8 J+ 3320 - AB-4D 0.29 - 11.5 11.5 3320 100 3.32E+01 Y 1
T INORGANIC Mercury 7439-97-6 43 0.0063 J 0.54 - GWA-21D 0.0087 - 0.02 0.02 0.54 0.1 5.40E+00 Y 1
T INORGANIC Molybdenum 7439-98-7 9 0.31 J 6.6 - AB-3D 0.57 - 8 8 6.6 23.30E+00Y 1
T INORGANIC Nickel 7440-02-0 91 0.44 J+ 167 - AB-4D 0.29 - 11.5 11.5 167 30 5.57E+00 Y 1
T INORGANIC Selenium 7782-49-2 3 2.4 J 5.6 J GWA-4S 2.9 - 9.5 9.5 5.6 0.81 6.91E+00 Y 1
T INORGANIC Sodium 7440-23-5 15 42.4 J 203 J AB-3D 57.5 - 797 797 203 NA NA Y 4
T INORGANIC Strontium 7440-24-6 76 0.43 J+ 174 - AB-7S 0.57 - 8 8 174 NA NA Y 3
T INORGANIC Thallium 7440-28-0 0 ND - ND - ND 2.9 - 9.5 9.5 9.5 19.50E+00Y 1
T INORGANIC Vanadium 7440-62-2 100 5.6 J 209 - GWA-7S 2.9 - 9.5 9.5 209 21.05E+02Y 1
T INORGANIC Zinc 7440-66-6 97 3.1 J+ 183 - GWA-1D 1.1 - 15.9 15.9 183 50 3.66E+00 Y 1
Notes:
All units are in mg/kg.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance.
(2) Based on US EPA's Region 4 Water Quality Management Division, Water Quality Standards Unit's Screening List (http://www.epa.gov/region4/superfund/images/allprogrammedia/pdfs/tsstablesoilvalues.pdf).
(3) Screening Hazard Quotient (HQ) = Concentration Used for Screening / EPA Region IV ESV.
(4) Contaminant Categories:
1 - Contaminant is found in concentrations exceeding its screening value.
2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value.
3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant.
Qualifiers:
J - Estimated Concentration
J+ - Concentration Biased High
J- - Concentration Biased Low
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
ESV - Ecological Screening Value
NA - No Criteria/Not Applicable
NC - No Contaminant Category
ND - Not Detected
Q - Data Qualifier
RL - Reporting Limit
SLERA - Screening Level Ecological Risk Assessment
Contaminant
Group
Maximum
Reporting Limit
Location of
Maximum
Detected
Concentration
Soil COPC?
(Y/N)
Total or
Dissolved
(T or D)
CASRN Frequency of
Detection
Range of Detection
Contaminant Minimum
Detected
Concentration
Q
Maximum
Detected
Concentration
Q
Contaminant
Category
(4)
Range of
Detection
Limits
Concentration
Used for
Screening
(1)
EPA Region IV
Soil ESV
(2)
Screening
Hazard
Quotient
(3)
Page: 1 of 1
Table 12-7. Selection of Ecological COPCs - Freshwater
D INORGANIC Aluminum 7429-90-5 0 ND - ND - ND 100 - 100 100 100 87 1.15E+00 87 Y Y 1, 5
D INORGANIC Antimony 7440-36-0 0 ND - ND - ND 0.5 - 0.5 0.5 0.5 160 3.13E-03 NA NA N NC
D INORGANIC Arsenic 7440-38-2 100 0.19 J 0.93 - SW-3 0.5 - 0.5 0.5 0.93 190 4.89E-03 150 N N NC
D INORGANIC Barium 7440-39-3 100 16 - 58 - SW-3 5 - 5 5 58 NA NA NA NA Y 3
D INORGANIC Beryllium 7440-41-7 0 ND - ND - ND 0.2 - 0.2 0.2 0.2 0.53 3.77E-01 6.5 N N NC
D INORGANIC Boron 7440-42-8 50 500 - 500 - SW-3 50 - 50 50 500 750 6.67E-01 NA NA N NC
D INORGANIC Cadmium 7440-43-9 0 ND - ND - ND 0.08 - 0.08 0.08 0.08 0.66 1.21E-01 0.15 N N NC
D INORGANIC Chromium (Total)7440-47-3 100 0.28 J 0.28 J SW-3 0.5 - 0.5 0.5 0.28 117.32 2.39E-03 24 N N NC
D INORGANIC Cobalt 7440-48-4 50 0.41 J 0.41 J SW-3 0.5 - 0.5 0.5 0.41 NA NA NA NA Y 4
D INORGANIC Copper 7440-50-8 100 0.3 J 0.95 J S-13 1 - 1 1 0.95 6.54 1.45E-01 2.7 N N NC
D INORGANIC Iron (Fe)7439-89-6 50 230 - 230 - S-13 50 - 50 50 230 1000 2.30E-01 NA NA N NC
D INORGANIC Lead 7439-92-1 0 ND - ND - ND 0.1 - 0.1 0.1 0.1 1.32 7.58E-02 0.54 N N NC
D INORGANIC Manganese (Mn)7439-96-5 100 79 - 320 - SW-3 5 - 5 5 320 NA NA NA NA Y 3
D INORGANIC Mercury 7439-97-6 0 ND - ND - ND 0.2 - 0.2 0.2 0.2 0.012 1.67E+01 0.012 Y Y 1, 5
D INORGANIC Molybdenum 7439-98-7 100 0.13 J 11 - SW-3 0.5 - 0.5 0.5 11 NA NA NA NA Y 3
D INORGANIC Nickel 7440-02-0 50 2.7 - 2.7 - SW-3 0.5 - 0.5 0.5 2.7 87.71 3.08E-02 16 N N NC
D INORGANIC Selenium 7782-49-2 50 0.34 J 0.34 J SW-3 0.5 - 0.5 0.5 0.34 5 6.80E-02 5 N N NC
D INORGANIC Strontium 7440-24-6 100 79 - 960 - SW-3 5 - 5 5 960 NA NA NA NA Y 3
D INORGANIC Thallium 7440-28-0 50 0.15 - 0.15 - SW-3 0.1 - 0.1 0.1 0.15 4 3.75E-02 NA NA N NC
D INORGANIC Vanadium 7440-62-2 50 0.52 J 0.52 J S-13 1 - 1 1 0.52 NA NA NA NA Y 3
D INORGANIC Zinc 7440-66-6 100 4.8 J 210 - SW-3 10 - 10 10 210 58.91 3.56E+00 36 Y Y 1, 5
Notes:
All units are in ug/L.
Dissolved concentrations are compared to applicable criteria.
The applicable criteria for chromium III was input as a surrogate for chromium total when none was available.
The EPA Region IV CSV for arsenic III was input as a surrogate for arsenic total since none was available.
Dissolved sodium concentrations were not analyzed or provided by the laboratory.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance.
(2) Based on US EPA's Region 4 Water Quality Management Division, Water Quality Standards Unit's Screening List - Chronic Screening Values (http://www.epa.gov/region4/superfund/programs/riskassess/ecolbul.html#tbl1).
(3) Screening Hazard Quotient = Concentration Used for Screening / EPA Region IV CSV.
(4) 15A NCAC 2B or EPA National Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupId=38364)
The minimum of the 15A NCAC 2B Freshwater Aquatic Life was input.
Based on surface water classification (WS-IV, B and C) and other factors, Saltwater Aquatic Life, Water Supply, Human Health, Trout Waters, High Quality Waters and Swamp Waters are not applicable.
(5) Contaminant Categories:
1 - Contaminant is found in concentrations exceeding its screening value.
2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value.
3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant.
5 - Contaminant's RL or maximum concentration exceeds the NC Water Quality Criteria.
Qualifiers:
J - Estimated Concentration
J+ - Concentration Biased High
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
CSV - Chronic Screening Value
NA - No Criteria/Not Applicable
NC - No Contaminant Category
ND - Not Detected
NCWQS - North Carolina Water Quality Standard
Q - Data Qualifier
RL - Reporting Limit
SLERA - Screening Level Ecological Risk Assessment
WQC - Water Quality Criteria
Contaminant
Group
Maximum
Reporting
Limit
Contaminant
Total or
Dissolved
(T or D)
CASRN
Contaminant
Category
(5)
Location of
Maximum
Detected
Concentration
Frequency of
Detection
Range of
Detection
Limits
Concentration
Used for
Screening
(1)
Screening
Hazard
Quotient
(3)
Exceed
NCWQS?
(Y/N)
EPA Region IV
SW CSV
(2)
NC Freshwater
Aquatic Life
WQS & EPA
National WQC
(4)
Freshwater
COPC?
(Y/N)
Range of Detection
Minimum
Detected
Concentration
Q
Maximum
Detected
Concentration
Q
Page: 1 of 1
Table 12-8. Selection of Ecological COPCs - Sediment
T INORGANIC Aluminum 7429-90-5 100 2200 - 14500 - S-12 32.8 - 138 138 14500 NA NA Y 3
T INORGANIC Antimony 7440-36-0 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 12 2.30E+00 Y 1
T INORGANIC Arsenic 7440-38-2 18 11.2 J 61.8 - S-12 6.6 - 27.6 27.6 61.8 7.24 8.54E+00 Y 1
T INORGANIC Barium 7440-39-3 100 21 - 1960 - S-6 3.3 - 13.8 13.8 1960 NA NA Y 3
T INORGANIC Beryllium 7440-41-7 82 0.38 J 1.2 - S-11 0.33 - 1.4 1.4 1.2 NA NA Y 4
T INORGANIC Boron 7440-42-8 64 13.1 J 45.1 J S-6 16.4 - 69.1 69.1 45.1 NA NA Y 4
T INORGANIC Cadmium 7440-43-9 9 0.99 J 0.99 J S-12 0.79 - 3.3 3.3 0.99 19.90E-01Y 2
T INORGANIC Chromium (Total)7440-47-3 100 5.5 - 102 - S-12 1.6 - 6.9 6.9 102 52.3 1.95E+00 Y 1
T INORGANIC Cobalt 7440-48-4 100 4.6 J 355 - S-6 6.6 - 27.6 27.6 355 NA NA Y 3
T INORGANIC Copper 7440-50-8 100 4.7 - 60.8 - S-12 1.6 - 6.9 6.9 60.8 18.7 3.25E+00 Y 1
T INORGANIC Iron (Fe)7439-89-6 100 8100 - 92500 - S-6 13.1 - 55.2 55.2 92500 NA NA Y 3
T INORGANIC Lead 7439-92-1 73 9.1 - 16.2 - S-12 6.6 - 27.6 27.6 16.2 30.2 5.36E-01 N NC
T INORGANIC Manganese (Mn)7439-96-5 100 92.8 - 64400 - S-6 1.6 - 69.1 69.1 64400 NA NA Y 3
T INORGANIC Mercury 7439-97-6 100 0.014 - 0.46 - S-11 0.01 - 0.047 0.047 0.46 0.13 3.54E+00 Y 1
T INORGANIC Molybdenum 7439-98-7 9 16.4 - 16.4 - S-12 3.3 - 13.8 13.8 16.4 NA NA Y 3
T INORGANIC Nickel 7440-02-0 100 1.3 J 107 - S-12 1.6 - 6.9 6.9 107 15.9 6.73E+00 Y 1
T INORGANIC Selenium 7782-49-2 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 NA NA Y 4
T INORGANIC Sodium 7440-23-5 0 ND - ND - ND 328 - 1380 1380 1380 NA NA Y 4
T INORGANIC Strontium 7440-24-6 100 2 J 45.2 - S-6 3.3 - 13.8 13.8 45.2 NA NA Y 3
T INORGANIC Thallium 7440-28-0 0 ND - ND - ND 6.6 - 27.6 27.6 27.6 NA NA Y 4
T INORGANIC Vanadium 7440-62-2 100 23.2 J 126 - S-12 6.6 - 27.6 27.6 126 NA NA Y 3
T INORGANIC Zinc 7440-66-6 100 6 J 218 - S-12 6.6 - 27.6 27.6 218 124 1.76E+00 Y 1
N Anion/Cation Nitrate 14797-55-8 0 ND - ND - ND 33.4 - 142 142 142 NA NA Y 4
N Anion/Cation Sulfate 14808-79-8 55 310 J 1470 - S-10 334 - 1420 1420 1470 NA NA Y 3
N Anion/Cation Chloride 16887-00-6 0 ND - ND - ND 334 - 1420 1420 1420 NA NA Y 4
Notes:
All units are in mg/kg.
The speciation data for chromium was not available.
(1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance.
(2) Ecological Risk Assessment Bulletins--Supplement to RAGS, Table 3 Sediment Screening Values (http://www.epa.gov/region4/superfund/programs/riskassess/ecolbul.html#tbl3)
The sediment ecological screening value is determined using the maximum of the practical quantitation limit (PQL) and the Effects Value; since no laboratory-specific PQLs are provided, the Effects Value was applied as the criterion.
(3) Screening Hazard Quotient (HQ) = Concentration Used for Screening / EPA Region IV Sediment Effects Value.
(4) Contaminant Categories:
1 - Contaminant is found in concentrations exceeding its screening value.
2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value.
3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant.
4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant.
Qualifier:
J - Estimated Concentration
- No Qualifier
Abbreviations:
CASRN - Chemical Abstract Service Registry Number
COPC - Contaminant of Potential Concern
NA - No Criteria/Not Applicable
NC - No Contaminant Category
ND - Not Detected
PQL - Practical Quantitation Limit
Q - Data Qualifier
RL - Reporting Limit
SLERA - Screening Level Ecological Risk Assessment
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Range of
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Minimum
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Maximum
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Concentration
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Concentration
Range of Detection
Screening
Hazard
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(3)
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COPC?
(Y/N)
Contaminant
Category
(5)
Concentration
Used for
Screening
(1)
EPA Region IV
Sediment
Effects Value
(2)
Page: 1 of 1
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1
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
AB-1D 198 5 193-198
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-1S 44 15 29-44
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-2D 156 5 151-156
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-2S 65 15 50-65
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-3BR 211 5 206-211
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-3D 178 5 173-178
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-3S 28 15 13-28
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-4D 209.5 5 198.5-203.05 Table 10
AB-4S 30 15 15-30 Table 10
AB-5D 159 5 154-159
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 1 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
AB-5S 24 15 9-24
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-5SL 57 10 47-57
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-6BRU 174 5 169-174
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-6S 65 15 50-65
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-7D 147 5 142-147
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-7I 85 15 70-85
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-7S 20 15 5-20
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AB-8D 96 5 91-96 Table 10
AB-8S 28 15 13-28 Table 10
AS-1D 176 5 171-176
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 2 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
AS-1S 96 15 81-96
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AS-2D 190 5 185-190
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AS-2S 89 15 74-89
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AS-3D 144 5 139-144
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
AS-3SA 70 10 60-70
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-1D 199.2 5 194.2-199.2
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-1S 45 15 30-45
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-2BR 208 5 203-208
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 3 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
BG-2D 160 5 155-160
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-2S 65 16 49-65
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-3D 105 5 100-105
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
BG-3S 36.6 15 21.1-36.6 Table 10
C-1BRU 120 5 115-120 Table 10
C-1S 15 10 5-15
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
C-2D 138 5 133-138
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
C-2S 33 15 18-33
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-1BRU 77 5 72-77
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-1S 43 15 28-43
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-2BR 120 5 115-120 Table 10
8/15/2015 4 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
GWA-2BRU 82 5 77-82
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-2S 50 15 35-50
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-3D 47 5 42-47 Table 10
GWA-3SA 39.5 15 23-39
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-4BR 164 5 159-164 Table 10
GWA-4D 125 5 120-125 Table 10
GWA-4S 32 15 17-32 Table 10
GWA-5D 217 5 212-217
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-5S 75 15 60-75 Table 10
GWA-6D 148 5 143-148
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-6S 60 15 45-60
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-7BR 132 5 127-132 Table 10
GWA-7D 105 5 100-105
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 5 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
GWA-7S 20 15 5-20
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-8D 116 5 111-116
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-8S 23 15 8-23
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-9BR 111 5 106-111
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-9D 67 5 62-67
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-9S 15 10 5-15
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-10BRU 138.5 5 133.5-138.5 Table 10
GWA-10S 22.5 15 7.5-22.5
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-20BR 305.6 5 300.6-305.6 Table 10
GWA-20D 258 5 253-258
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 6 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
GWA-20S 53 15 37-53
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-21BR 5 Table 10
GWA-21D 279 5 274-279 Table 10
GWA-21S 72 5 57-72 Table 10
GWA-22BR-A 274 5 269-274
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-22D 203 5 198-203
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-22S 57 15 40-55 Table 10
GWA-23BR 290 5 285-290
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-23D 226 5 221-226
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
GWA-23S 50 15 33-48
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-1D 62 5 57-62
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 7 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
MW-1S 15 10 5-15
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-2BRU 88 5 83-88 Table 10
MW-2S 25 10 15-25 Table 10
MW-3D 34.5 5 29.5-34.5 Table 10
MW-3S 14 10 4-14 Table 10
MW-4D 60 5 55-60 Table 10
MW-4S 20 10 10-20 Table 10
MW-5D 79 5 74-79 Table 10
MW-5S 15 10 5-15 Table 10
MW-6D 74.5 5 69.5-74.5 Table 10
MW-6S 15 10 5-15 Table 10
MW-7BR 201 5 196-201
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-7SR 20 43-63
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-8D 166 10 156-166
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-8I 118 20 98-118
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-8S 55 20 35-55 Table 10
MW-9 28 5 13-28
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
8/15/2015 8 of 9
Table 15-1. Riverbend Groundwater Development and Sampling Schedule
Well ID
Approximate Well
Total Depth
(ft. bgs)
Well Screen
Length
(ft)
Approximate Well
Screen Interval
(ft. bgs)
Analysis
Parameters
MW-9BR 152 5 147-152
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-9D 106 5 101-106
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-10 18 15 3-18 Table 10
MW-11DR 40 5 35-40
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-11SR 30 15 15-30
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
MW-13 18 15 3-18
Table 10
As (III & V)
Cr (III & VI)
Fe (II & III)
Mn (II & IV)
Se (II, IV, & VI)
Radium/Uranium
MW-14 18 15 3-18 Table 10
MW-15 18 15 3-18 Table 10
MW-15BR 62 5 56-61 Table 10
MW-15D 44 5 39-44 Table 10
OB-1 48 15 33-48 GW Levels Only
OB-2 54 15 39-54 GW Levels Only
8/15/2015 9 of 9
Table 16-1. Recommended Parameters and Constituents
PARAMETER RL UNITS METHOD
FIELD PARAMETERS
pH NA SU Field water quality meter
Conductivity NA mmho/cm Field water quality meter
Temperature NA ºC Field water quality meter
Dissolved Oxygen NA mg/L Field water quality meter
Oxidation Reduction Potential NA mV Field water quality meter
Turbidity NA NTU Field Water Quality Meter
Ferrous Iron NA mg/L Field Test Kit
DETECTION MONITORING CONSTITUENTS
Boron 50 μg/L EPA 200.7 or 6010
Calcium 0.01 mg/L EPA 200.7
Chloride 0.1 mg/L EPA 300.0 or 9056A
Fluoride mg/L
Sulfate 0.1 mg/L EPA 300.0 or 9056A
Total Dissolved Solids 25 mg/L SM 2540C
ASSESSMENT MONITORING CONSTITUENTS
Antimony 1 μg/L EPA 200.8 or 6020
Arsenic 1 μg/L EPA 200.8 or 6020
Barium 5 μg/L EPA 200.7 or 6010
Beryllium 1 μg/L EPA 200.8 or 6020A
Chromium μg/L EPA 200.7 or 6010
Cobalt 1 μg/L EPA 200.8 or 6020A
Iron 10 μg/L EPA 200.7 or 6010
Lead 1 μg/L EPA 200.8 or 6020
Manganese 5 μg/L EPA 200.7 or 6010
Total Combined Radium (226 and 228) 4 5 pCi/L EPA 903.0
Selenium 1 μg/L EPA 200.8 or 6020
Thallium (low level) 0.2 μg/L EPA 200.8 or 6020
Vanadium (low level) 0.3 mg/L EPA 200.8 or 6020A

Table 16-2. Interim Groundwater Monitoring Plan Sample Locations
Well/Boring ID Category Associated Ash Disposal Area
AB-1D Downgradient AB Secondary Cell
AB-1S Downgradient AB Secondary Cell
AB-2D Downgradient AB Secondary Cell
AB-2S Downgradient AB Secondary Cell
AB-6BRU Downgradient AB Primary Cell
AB-6S Downgradient AB Primary Cell
AB-8D Downgradient AB Primary Cell
AB-8S Downgradient AB Primary Cell
BG-1D Background None
BG-1S Background None
BG-2BR Background None
BG-2D Background None
BG-2S Background None
BG-3D Background None
BG-3S Background None
GWA-10BRU Downgradient AB Secondary Cell
GWA-10S Downgradient AB Secondary Cell
GWA-1BRU Downgradient AB Secondary Cell
GWA-1S Downgradient AB Secondary Cell
GWA-2BR Downgradient AB Primary Cell
GWA-2BRU Downgradient AB Primary Cell
GWA-2S Downgradient AB Primary Cell
GWA-3D Downgradient Coal Pile
GWA-3SA Downgradient Coal Pile
GWA-7BR Downgradient AB Primary Cell
GWA-7D Downgradient AB Primary Cell
GWA-7S Downgradient AB Primary Cell
GWA-8D Downgradient AB Secondary Cell
GWA-8S Downgradient AB Secondary Cell
GWA-9BR Downgradient AB Secondary Cell
GWA-9D Downgradient AB Secondary Cell
GWA-9S Downgradient AB Secondary Cell
MW-10 Downgradient AB Primary Cell
MW-11DR Downgradient AB intermediate dike
MW-11SR Downgradient AB intermediate dike
MW-13 Downgradient AB Secondary Cell
MW-14 Downgradient AB Secondary Cell
MW-15 Downgradient AB Secondary Cell
MW-15BR Downgradient AB Secondary Cell
MW-15D Downgradient AB Secondary Cell
MW-1D Downgradient AB Primary Cell
MW-1S Downgradient AB Primary Cell
MW-2BRU Downgradient AB Secondary Cell
MW-2S Downgradient AB Secondary Cell
MW-3D Downgradient AB Secondary Cell
MW-3S Downgradient AB Secondary Cell
MW-4D Downgradient AB Secondary Cell
MW-4S Downgradient AB Secondary Cell
MW-5D Downgradient AB Secondary Cell
MW-5S Downgradient AB Secondary Cell
MW-6D Downgradient AB Secondary Cell
MW-6S Downgradient AB Secondary Cell
MW-7BR Background None
MW-9 Downgradient Cinder Storage
MW-9BR Downgradient Cinder Storage
MW-9D Downgradient Cinder Storage
MW-7SR Background None
MW-7D Background None





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RIVERBEND STEAM STATION FLOW SCHEMATIC
MAY 14, 2014
001
Stormwater from MGD
Roof Drains &
Paving 0.023
Stormwater from Coal MGD
Pile
0.001 0.001 0.001
Drinking Water System MGD General Plant MGD MGD
City of Mt.Holly Supply Sanitary jo- Sanitary System �►
Wastewater
Groundwater
Remediation
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0.03
MGD
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Yard
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Turbine Room Sump Upgradient Watershed Ash Basin
0.025 0.025
MGD
MGD Surface
lu s Boiler Room Sump Seepage
- 0.195 Intermittent
0.025 MGD Intermittent : MGD
0.139
Old End Pit Sump MGD
0.025 MGD Outfall 002 Outfall 002A
Y —
0.15 <0.1 �.i <0.1 Outfall 001
MGD � MGD MGD
Catawba River Intake Tunnel ID Plant Chiller System Mountain Island Lake
Flows are approximated averages which have a high variability on a daily basis

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RECEPTOR MAP
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
DATE
FIGURE
AUGUST 2015
4-2
PA
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NOTES:
1. ASH BASIN WASTE BOUNDARIES AND ASH STORAGE AREA BOUNDARIES ARE APPROXIMATE.
2. PRIVATE WELLS LOCATIONS ARE APPROXIMATE.
3.ORTHOPHOTOGRAPHY IS FROM NC ONEMAP GIS ONLINE SERVICE.
4. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L.0107(a).
5. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS LAKE NORMAN SOUTH, NC AND MOUNTAIN ISLAND LAKE, NC-VA.
6. DUKE ENERGY PROPERTY BOUNDARY WAS SUPPLIED BY DUKE ENERGY REAL ESTATE.
7. PROPERTY BOUNDARIES WERE SUPPLIED BY THE GASTON COUNTY AND MECKLENBURG COUNTY GIS OFFICES.
8. INFORMATION PERTAINING TO IDENTIFIED WATER SUPPLY WELLS IS INCLUDED IN TABLE 4-1
Legend
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
COINCIDENT WITH DUKE ENERGY
PROPERTY BOUNDARY
0.5 MILE OFFSET FROM ASH BASIN
COMPLIANCE BOUNDARY
STREAM
PROPERTY LINES
REPORTED PRIVATE WATER SUPPLY WELL
N
500 0 500 1,000
SCALE (FEET)
NOTES:
1. ASH BASIN, ASH STORAGE AREA, AND CINDER STORAGE AREA WASTE BOUNDARIES ARE APPROXIMATE.
2. ORTHOPHOTOGRAPHY WAS OBTAINED FROM WSP (DATED APRIL 2014).
3. CMP IS ASSUMED TO BE AN ABBREVIATION FOR CORRUGATED METAL PIPE. HDPE IS ASSUMED TO BE AN
ABBREVIATION FOR HIGH DENSITY POLYETHYLENE. CPP IS ASSUMED TO BE AN ABBREVIATION FOR CORRUGATED
PLASTIC PIPE. RCP IS ASSUMED TO BE AN ABBREVIATION FOR REINFORCED CONCRETE PIPE.
4. UNDERGROUND FEATURES PROVIDED BY STANTEC AND DUKE ENERGY.
5. PIPE LOCATION AND LENGTH SHOWN ARE APPROXIMATE.
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SCALE (FEET) _
/00' 0 /00' 200'
l" = 200
LEGEND:
ASH BASIN WASTE BOUNDARY
1500 FT OFFSET FROM ASH BASIN WASTE BOUNDARY
—_ PIPE SEGMENT
ASH BASIN UNDERGROUND FEATURES MAP
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
DATE
AUGUST 2015
FIGURE
GASTON COUNTY, NORTH CAROD NA
43

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AB2SAB2S
NRNR
AB6SAB6S
686.73'686.73'
AS2SAS2S
694.09'694.09'AS3SA AS3SA
710.01'710.01'
GWA23SGWA23S
705.89'705.89'
MW3S MW3S
645.06'645.06'
MW6S MW6S
649.73'649.73'
MW7S MW7S
NRNR
MW7SRMW7SR
709.04'709.04'
MW8I 707.16'MW8I 707.16'
MW8S 709.86'MW8S 709.86'
AB1S AB1S
685.73'685.73'
AB3SAB3S
706.26'706.26'
AB4SAB4S
705.91'705.91'
AB5S AB5S
707.5'707.5'
AB5SLAB5SL
706.87'706.87'
AB7IAB7I
713.78'713.78'AB7SAB7S
714.42'714.42'
AB8S 656.55'AB8S 656.55'
AS1S AS1S
678.17'678.17'
BG1SBG1S
670.96'670.96'
BG2SBG2S
651.82'651.82'
BG3SBG3S
644.96'644.96'
C1SC1S
653.31'653.31'
C2S C2S
656.39'656.39'
GWA10SGWA10S
643.79'643.79'GWA1S GWA1S
661.15'661.15'
GWA20S GWA20S
NRNR
GWA22S 712.92'GWA22S 712.92'
GWA2SGWA2S
645.13'645.13'
GWA3S GWA3S
646.21'646.21'
GWA3SAGWA3SA
645.52'645.52'
GWA4S GWA4S
674.17'674.17'
GWA5SGWA5S
710.41'710.41'
GWA6S GWA6S
715.45'715.45'
GWA7S GWA7S
670.18'670.18'
GWA8S GWA8S
671.26'671.26'
GWA9S GWA9S
648.24'648.24'
MW10MW10
643.74'643.74'
MW11SR MW11SR
664.68'664.68'
MW12MW12
NRNR
MW13MW13
643.07'643.07'
MW14MW14
652.62'652.62'
MW15MW15
643.74'643.74'
MW1SMW1S
652.58'652.58'
MW2S MW2S
687.03'687.03'
MW4SMW4S
648.16'648.16'
MW5SMW5S
643.55'643.55'
MW9MW9
647.74'647.74'
OB1 OB1
707.75'707.75'OB2 OB2
675.98'675.98'
S R-1912
POTENTIOMETRIC SURFACE – SHALLOW WELLS (S)
(7/8 - 10, 2015)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
DATE
FIGURE
6-5
PA
T
H
:

S
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-
D
A
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:

8
/
1
7
/
2
0
1
5
LEGEND
!<ASH BASIN ASSESSMENT GROUNDWATER
MONITORING WELL
!<ASH BASIN COMPLIANCE GROUNDWATER
MONITORING WELL
!<ASH BASIN VOLUNTARY GROUNDWATER
MONITORING WELL
GROUNDWATER CONTOUR LINE
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
AUGUST 2015
N
500 0 500 1,000
SCALE (FEET)
NR - NO READING
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666.2'666.2'
AB2DAB2D
678.41'678.41'
AS1DAS1D
675.39'675.39'
AB3D 700.2'AB3D 700.2'
AB4DAB4D
702.91'702.91'
AB5DAB5D
677.13'677.13'
AB7DAB7D
713.48'713.48'
AB8DAB8D
658.58'658.58'
AS2D AS2D
695.47'695.47'AS3DAS3D
712.53'712.53'
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674.44'674.44'
BG2DBG2D
647.96'647.96'
BG3DBG3D
644.85'644.85'
C2DC2D
653.38'653.38'
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709.29'709.29'
GWA23DGWA23D
704.94'704.94'
GWA3DGWA3D
645.5'645.5'
GWA4DGWA4D
673.88'673.88'
GWA5DGWA5D
NRNR
GWA6DGWA6D
714.74'714.74'
GWA7D GWA7D
670.98'670.98'
GWA8D GWA8D
671.08'671.08'
GWA9DGWA9D
653.78'653.78'
MW11DRMW11DR
664.59'664.59'
MW15DMW15D
643.84'643.84'
MW1DMW1D
649.95'649.95'
MW2DMW2D
687.39'687.39'
MW3DMW3D
652.45'652.45'
MW4DMW4D
647.32'647.32'
MW5DMW5D
647.66'647.66'
MW6DMW6D
650.63'650.63'
MW7DMW7D
714.4'714.4'
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705.55'705.55'
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647.93'647.93'
68
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S R-1912
POTENTIOMETRIC SURFACE – DEEP WELLS (D)
(7/8 - 10, 2015)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
DATE
FIGURE
6-6
PA
T
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:

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8
/
1
7
/
2
0
1
5
LEGEND
!<ASH BASIN ASSESSMENT GROUNDWATER
MONITORING WELL
!<ASH BASIN COMPLIANCE GROUNDWATER
MONITORING WELL
!<ASH BASIN VOLUNTARY GROUNDWATER
MONITORING WELL
Groundwater Contour Line
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
AUGUST 2015
N
500 0 500 1,000
SCALE (FEET)
NR - NO READING
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703.38'703.38'
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583.67'583.67'
AB6BRUAB6BRU
663.59'663.59'
BG2BRBG2BR
693.83'693.83'
C1BRUC1BRU
549.33'549.33'
GWA20BR GWA20BR
NRNR
GWA22BRGWA22BR
NRNR
GWA2BRGWA2BR
645.24'645.24'
GWA4BRGWA4BR
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GWA7BR 671.01'GWA7BR 671.01'
GWA9BRGWA9BR
541.34'541.34'
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643.95'643.95'
MW7BRMW7BR
711.76'711.76'
MW9BRMW9BR
648.72'648.72'
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NANA
GWA1BRUGWA1BRU
662.07'662.07'
GWA10BRUGWA10BRU
643.92643.92
720'720'
700'700'
680'680'
660'660'
S R-1912
POTENTIOMETRIC SURFACE – BEDROCK WELLS (BRU AND BR)
(7/8 - 10, 2015)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
DATE
FIGURE
6-7
PA
T
H
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S
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8
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7
/
2
0
1
5
LEGEND
!<ASH BASIN ASSESSMENT GROUNDWATER
MONITORING WELL
GROUNDWATER CONTOUR LINE
DUKE ENERGY PROPERTY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
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AUGUST 2015
N
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NOTES:
1. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATEAND ISAPPROXIMATE.
2. ASH STORAGE BOUNDARY AND CINDER STORAGE BOUNDARY ARE APPROXIMATE.
3. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY.
4. SHALLOW MONITORING WELLS (S) - WELL SCREEN INSTALLED ACROSS THESURFICIAL WATER TABLE.
5. SHALLOW LOWER MONITORING WELLS (SL) - BOTTOM OF WELL SCREEN SETATTHEASH-REGOLITH INTERFACE.
6. INTERMEDIATE MONITORING WELLS (I) - WELL SCREEN INSTALLEDIN REGOLITH BELOW WATERTABLEAND BELOWASH INASH BASIN.
7. DEEP MONITORING WELLS (D) - WELL SCREEN INSTALLED IN THE TRANSITION ZONE BETWEEN COMPETENT BEDROCK AND THE REGOLITH.
S. BEDROCK UPPER MONITORING WELLS (BRU) - WELL SCREEN INSTALLED IN COMPETENT BEDROCK IN THE FIRST15 FEETWHERE NOTRANSITION ZONE EXISTS.
9. BEDROCK MONITORING WELL (BR) - WELL SCREEN INSTALLED IN ROCK FRACTURE ZONE WITHIN COMPETENT BEDROCK.
10. TOPOGRAPHY DATA FOR THE SITE WAS OBTAINED FROM NC DOT GEOGRAPHIC INFORMATION SYSTEM (GIS) WEB SITE.
11.ORTHOPHOTOGRAPHY WAS OBTAINED FROM WSP(DATEDAPRIL2014).
12. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCACO2L.0107 (a).
13. SEEP SAMPLING LOCATIONS WERE OBTAINED BY HDR USING A TRIMBLE HANDHELDGPS UNIT ONAPRIL29,2014.
14. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS MOUNTAIN ISLAND LAKE, NC.
* INDICATES SEEP SAMPLING LOCATIONS WERE NOT RECORDED WITH GPS UNIT AND ARE APPROXIMATE.
SCALE (FEET)
150, 0 150, 300,
/" = 300'
►N
* a,.
T'
:_'
1 ,
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LEGEND:
a
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN COMPLIANCEBOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH OR CINDER STORAGE AREA BOUNDARY
STREAM
TOPOGRAPHIC CONTOUR (4 FOOT)
EXISTING ASH BASIN VOLUNTARY GROUNDWATER
MONITORING WELL
EXISTING ASH BASIN COMPLIANCE GROUNDWATER
MONITORING WELL
GROUNDWATER MONITORING WELL LOCATION
OBSERVATION WELL LOCATION
SEEP SAMPLE LOCATION
SURFACE WATER SAMPLE LOCATION
MONITORING WELL AND SAMPLE LOCATIONS
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
CASTO N COUNTY, NORTH CAR 0 D NA
DATE
AUGUST 2015
FIGURE
108

100
10
9 R7
A
8.8
6.25
�
4.39
A
5.65
3.02
4.65
3.19
2,76 2.84
1.8
14
2L Standard: 10 ug/I
1.34
1.28
µg/l. 10 -
1 NTU
0. 81
0.8v
5 5
5
5 5 5 5 5 5
5
s
5
5 5
5 5
1
0
Oct-10 Feb-11 Jun-11 Oct-11
Feb-12
Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tChromium ■ Chromium, diss (ug/1)—dr-Turbidity, field (NTU)
MW-7SR DATE
Chromium and Turbidity
DUKE ENERGY CAROLINAS, LLC AUGUST 2015
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY. NORTH CAROLINA

10000
1000
1710
1420
921
1000
182 634
509
100
310
2L Standard: 3GO µgJL 295 301
252
84.1
291
235 220
147 29.7
µg/L100
NTU
vNV 79 21.7
72
\/
8.19
\10.7 ® 7.73
10
■
10
6,92 6.95 _. 5.08
432 4.28
5.51
5.23
3.19
1
1
—
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-1.4 Feb-15 Jun-15
Oct-10
+Iron, total (ug/1) ■ Iron, dins (ug/1) —A—Turbidity, field (NTU)
VW-10 DATE
Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
100
10
486
2L Standard: 300 µg/L
138
109
87 63 67
39 62 46
38
■
33
30 33
28
20
■ 14 5.07 5.44
6.13
•
3.44 2.72 / 3.53
2.41
3.34 2.48
2.05 2
2.35 .55
1.37
1
Oct-10
100
10 NTU
1
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
+Iron, total (ug/1) IN Iron, diss (ug/1) —Turbidity, field (NTU)
M W-11 SR DATE
Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

µg/L
100000
10000
1000
100
10
1
Oct-10
37700
30300
23000
24100
24100
19000
20600 19300
20900
16900
18300
19200
21100
/32500
21000
13500
7690
18.8
9.32
18.3
13.7
2L Standard: 300 µ lL
7.67
7.78
y
6.4
4.67
\
/
3.75'
\
.3..'6'.
3.14v
3-15 2.4
2.44
100
10 NTU
1
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tlron, total (ug/I) ■ Iron, diss (ug/I) --*—Turbidity, field.(NTU)
M W-13 DATE
F)""Z Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
100
686
935
660
421
1
371 374
369
472
280
206
/,n
175
98
100
25.6
2LStandard:300µ lL
58
Y
14.4
A
12.9
µg/L
8.64
- 10 NTU
8.21
13
6.09
6.52
5.48
10
4.89 5.08
4.31
3.92
3.24
2.04
1.85
1 11
Oct-10 Feb-11 Jun-11
Oct-11
Feb-12 Jun-12 Oct-12 Feb-13
Jun-13 Oct-13 Feb-14 Jun-14 Oct-14
Feb-15 Jun-15
tlron, total (ug/1) ■ Iron, diss (ug/1)
—A—Turbidity, field (NTU)
M W-14 DATE
Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
100
465
399
274 4
227
168
230
160
198
2L Standard: 300 paS/L
100
44
1
75
58
74
v
v
72
55
40
13.2
45
µg/L
10.8 10.9
10 NTU
7.99
6.02
10
3:83
4.16
3.35
V2.15
2.59
273'
2.48
1:7T
1.5
1
1
Oct-10
Feb-11 Jun-11 Oct-11 Feb-12
Jun-12 Oct-12 Feb-13
Jun-13 Oct-13
Feb-14 Jun-14 Oct-14
Feb-7.5 Jun-15
tlron, total (ug/I) ■ Iron, diss (ug/1)
--*—Turbidity, field (NTU)
M W-15 Dare
Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

me
1000
100
10
1
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
—III—Iron, total (ug/1) ■ Iron, diss (ug/1) —*-Turbidity, field.(NTU)
10
1 NTU
0
M W-7SR DATE
F)""Z Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10000
1000
4160
2050
1680
1330
1480 1320
2410
954
1720
1000
217
1120
1 _
949 110
777
93.7
&
100
100
76
44
2L Stand�r41: 3 µg/L
72.4
6€
\32.6
µg/L 100
71 36
NTU
■
25
27.4
24.7
■
16
30
10
1
1
Oct-10
Feb-11 Jun-11
Oct-11 Feb-12 Jun-12 Oct-12
Feb-13 Jun-13 Oct-13 Feb-14
Jun-14 00-14 Feb-15 Jun-15
tlron, total (ug/1)
■ Iron, diss (ug/1) —Turbidity, field (NTU)
M W-8D DATE
Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10000 100
2460 2510
2100
38.7
37.2 51.6
32.2 32.2 43.2
1000
812 1410
643::2 618 629
593 618
942 976 497
787 853
2LStandard:300µWL 23 20.8
"n) 436
19.8
17.7 18.2
14.1 10.8
100
10
µg/L
NTU
9.87
44
■
■
10
1
1
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tlron, total (ug/1) ■ Iron, diss (ug/1) —*—Turbidity, field.(NTU)
M W-81 UATE
F)""Z Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10000 1000
2440
1870 1950
1620
1110 1130
A A
1000
10fi0 569
139
100
464 2L Standard: 300 µg/L 263
381 209
49.7 341
272
37 220
A
µg/L 100
A 140
NTU
21.2
29.5
18.6
14.3 14.4 19
12.6
■
10
13 10.3
■
10
4.79
4.28
5.82
5.07
3.56
1
1
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tlron, total (ug/1) ■ Iron, diss (ug/1) —Turbidity, field (NTU)
M W-9 UATE
F)""Z Iron and Turbidity
AUGUST2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
1000
I
355
242
198
A
232
133
182
124
100
132
100
67
68
84.1
z
Z
Zac
72
dard: 50 µg/LNTU
37
48
29.7
36
µg/L
33
21.7
19
■
15
10
10
10.7
8.19
---
�7.�73
6.95
5.08
4.32 4.28
5.81
16
5.23
3.19
1
—
1
Oct-10
Feb-11 Jun-11
Oct-11 Feb-12
Jun-12 Oct-12
Feb-13 Jun-13
Oct-13 Feb-14 Jun-14
Oct-14 Feh-15
Jun-15
+Manganese, tot (ug/1)
■ Manganese, diss (ug/1)
—Turbidity, field (NTU)
MW-10 DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000 100
384
100
59
2L Standard: 50 µg/L
NTU
µg/L
10
4
11 2
30
17
14
12 5.44
16
1 13 12 10
10
12 8 $,
5.07 9
7
3.44 2.72 / 3,53
3.34 \ 2.41 2.48
—�
T
2.05
2.35 2.55
1.37
3
1
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
Oct-10
+Manganese, tot (ug/1) ■ Manganese, diss (ug/1) (Turbidity, field (NTU)
MW-11 SR DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

100000
100
11200
10300
10000
10100 10500 10000
9330
10000
10500 1111 R070 g..
8760
10400
10300 10300
10300
10100
1000
18'8
18.3
13.7
NTU
µg/L
10
7.67
7.78
`A
9.32
100
6.4
4.67
5.26
2L Standard: 50 µg/L
/75
3.26
3.14 3.15 2.4
2.44
10
1
1
Oct-10 Feb-11 Jun-11
Oct-11 Feb-12 Jun-12 Oct-12
Feb-13 Jun-13 Oct-13 Feb-14 Jun-14
Oct-14
Feb-15 Jun-15
tManganese, tot (ug/I)
■ Manganese, diss (ug/I) —,Turbidity, field (NTU)
M W-13 Dare
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000 100
353
270
193 185
205
1
126 32
100
4
25.6 81
63 90
55
12.9
56
14.4
NTU
43
NP./L
2L Standard: 50 4/1-4/1-10
\, I64�
8.21
8.fi52
20
4A9 &08
6.09
10
5.48
3.92
4.31
3.24
5 5
2.04
:LON
1
1
—
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-:14 Feb-15 Jun-15
Oct-10
tManganese, tot (ug/1) ■ Manganese, diss (ug/1) —Turbidity, field (NTU)
M W-14 Dare
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

100
100
86
58
52 53
21. Standard: 50 µg/L 50
45
.46 49 47 45 37 -
41
13.2
NTU
10
10
µg/L
10.8 10.9 7.99
6.02
4.16 3,35
V..3
2.48 2.59
2.73
1.77
2.15
1.5
1 1
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tManganese, tot (ug/1) ■ Manganese, diss (ug/1) —Turbidity, field (NTU)
MW-15 DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
8.8
10
9.17
6.25
413
5.66
4.39
4.65
256
304
I\V\
3.19
167
113
2.84
3.02
2.76
122
100
67
68
1.34
1 8
54
43 38 40
\V/31
33
NTU
1.28
49
` 41
1
2L Standard: 50 µg/L
0.8
0.81
10
1
0
Oct-10
Feb-11 Jun-11
Oct-11 Feb-12 Jun-12 Oct-12
Feb-13 Jun-13
Oct-13 Feb-14
Jun-14 Oct-14 Feb-15 Jun-15
tManganese, tot (ug/1)
■ Manganese, diss (ug/1)
—Turbidity, field (NTU)
MW-7SR DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
1000
743
671
535
452
622
174
143
217
82
110 118
86
933
100
100
72.4
100
76
44
74
60
21-standard: 50 Ng/L
34
31
i
R/L
41.4
NTU
36
35
274
32.6
25
■
24.7
16
12
Is
1*
10
10
■
5
1
1
Oct-10
Feb-11
Jun-11 Oct-11
Feb-12
Jun-12 Oct-12
Feb-13 Jun-13
Oct-13 Feb-14
Jun-14 Oct-14' Feb-15 Jun-15
tManganese, tot (ug/I)
■ Manganese, dins (ug/1)
—Turbidity, field (NTU)
M W-8D DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

100
1000
51.6
290
43.2
168
38.7
37.2
32.2
32.2
93
20.8
100
17.7
18.2
23
20.4 52
19.8
2L Standard: 50 µg/L
39
10.8
38
--7
32
14.1
9.97
43
23
47 30
NTU
µg/L
10
24
15
10
5
5
1
1
Oct-10
Feb-11 Jun-11 Oct-11
Feb-12 Jun-12 Oct-12
Feb-13 Jun-13
Oct-13 Feb-14
Jun-14 Oct-14 Feb-15 Jun-15
--#—Manganese, tot (ug/1)
■ Manganese, diss (ug/I)
—*—Turbidity, field (NTU)
MW-81 DATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

1000
1000
282'
347
4
139
100
87
100
68
62
49
2L Standard: 50 µg/L
49.7
A
µg/L
25 25 37
-
NTU
29.5
20
19
21.2
A
18.6
14.3 14.4
10
10
12.6
10
10.3
7
7
5
■
5.82 5
5.07
5
4.79
4.21
3.56
1
1
Oct-10
Feb-11
Jun-11 Oct-11 Feb-12
Jun-12 Oct-12 Feb-13 Jun-13
Oct-13 Feb-14
Jun-14 Oct-14 Feb-15
Jun-15
—*—Manganese, tot (ug/I) ■ Manganese, diss (ug/I)
—*--Turbidity, field (NTU)
M W-9 UATE
Manganese and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10
SU
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12
Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-1-5 May-15
pH (field) —i—Turbidity, field
M W-10 Dare
pH and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA
1000
100
NTU
10
1

10
10
3.4
2L Standard: 6.5 - 8.5SU
2.6
2.24 2.24
1.94
1.77
1.66
1.55
5.83 5 87
5.63 5.67 5.66 5.75 5.67 5.64 5.76 5.65
5.55
5.71 5.73 5.68
0.94 1.24 0.94
1 NTU
SU
y
0.68
x 0.64
0.18
x
0
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
+pH (field) —Turbidity, field
M W-11 DR DATE
pH and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10
8
6
4
2
0
Sep-10
r _ate
jS;l;I 5.72 5.78 5.72 5.67
5.77 5.68
5.73 5.68 5.62
21-Standard: 6.5 - 8.55U
1,13
3.44 3.53
Y
5
5.07 .44
3.34
2.72
2.35
2.41 2.15 2.48
2.05
1.37
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
+pH (field) —Turbidity, field
MW-11SR
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
100
10 NTU
1

10
8
6
SU
4
2
6.27 6.35 18.8 18.3
6.22 6.29 6.18 6.28
6.13
5.99 5.97 5.8 5.86
6.17 6.13
5.97
13.7
2L Standard: 6.5 - 8.5SU 9.32
7 67 7.78
6.4
At
5.26
4.67
.75
3.26 3.14 i3aSe
2.44
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
+pH (field) —Turbidity, field
MW-13
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
100
10 NTU
1

10
8
6
SU
4
2
13.2
5.21 2L Standard: 6.5 - §.
5.16 5.19 5.07 5.2 5.1 5.19 5.11
5.06 5.05 5.07 5.1
5.29 10.8 10.9
7.99 6.02
3.83
4.16
3.35
2.73
2.48 2.59
2.15
1.77
1.5
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
tpH (field) —*--Turbidity, field
MW-15
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
100
10 NTU
1

10
8
6
SU
4
2
8.82
A
6.5
s�
4.73
3.25
3.04
3
2.05
2LStandard &5-8.55U
5.79 5.8
5.68 5.68
5.61 5.56
1.48
5.51 5.5
5.69 5.62 5.48
5.61 5.56
5,79
1.2
0.79
A
0.89
0.59
0.42
0.44
0.29
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
+pH (field) —*—Turbidity, field
M W-7D
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
10
1 NTU
0

10
8
6
5U
4
2
9.17 8.8
5.66
z z
4.65
4.39
2.76
3.02
A,--/
Y 3.19
2.84
1.8 2L Standard: 6.5-8.5SU
1.281.34
5.48
5.33 5.34 5.37 5 29
5.13 5.19
4.96 5.06 5.05 5.1 5,05
5.24
5.12
0.8
0.81
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
tpH (field) —*—Turbidity, field
MW-7SR
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST 2015
FIGURE
Figure 10-
10
1 NTU
0

Su
10
8
6
4
2
217
7
6.84 6.81 110
6.8 6.77 100 93.7
7.08
6.27 6.31 6.34 6.34 6.34
76 6.49 6.41 6.38 6.34 72.4
60 44
41.4
36 32.6
27.4
25
24.7
16
2L Standard: 6.5 - 8.5SU
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
--*--pH (field) —*--Turbidity, field
M W-8D
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
1000
100
NTU
10
1

10
8
6
Su
4
2
51,.6
43.2
37.2 38.7
,1 32.2
23
20.4 19.8 20.8
6.82 17.7 18.2
6.4 6.33 6.4. 6.4 6.38
14.1
�6��O9�,&,0 6 6.03 5.98 6.02 6.01 5.97
5.65
9 87 10.8
21-Standard: 6.5 - 8.5SU
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
--*--pH (field) (Turbidity, field
M W-81
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figue 10-
100
10 NTU
1

10
SU
8
6
4
2
18
16
13.2
10.7
9.98 iLst d:6.5-assu 4.8 478
4.82
5.33 5.22 5.22 T
4.94
7 89 5.08 5.07
4.92
4.83 4.75
4.71 9.46
4.34
7.65 7.07 7.42
6.76
6.12
4.18
2.77 2.72
Y y
0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14
--*--pH (field) (Turbidity, field
M W-8S
pH and Turbidity
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
Sep-14 Jan-15 May-15
DATE
AUGUST2015
FIGURE
Figure 10-
100
10 NTU
1

10
1000
8
2L Standard: 6.5 - 8.5SU
100
6.1
5.95 6 6..4
6.4
5.99
6.29
6.
6.23
6.03
6.01 5.97 6.05
37
5.82
Su
A
NTU
18.6`
4
12.6
14.3
14.4
10
10.3
2
5.82 - "=�— 3.56
-f-----w-'
4.795.07
4.28
0
1
Sep-10
Jan-11
May-11 Sep-11
Jan-12 May-12 Sep-12 Jan-13
May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
tpH(field)
—*--Turbidity, field
M W-9 UATE
pH and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA

10
µg/L 1
0
8.82
6.5
4.73
3 3.04
3.25
1.48 2.05
1.2
1 1 1 1 1 1.04 1 2LStandard: lµg/L 1 1
1 � 1
1 1 1 1 1
0v
.89
0.74
0.59
0.44
0.42
0.29
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-1.5 Jun-15
tAntimony, tot (ug/1) ■ Antimony, dins (ug/1)—d—Turbidity, field (NTU)
MW-7D DATE
Antimony and Turbidity AUGUST 2015
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN FIGURE
Figure 10-
GASTON COUNTY, NORTH CAROLINA
10 1
NTU
1
0 1

100
2L Standard: 10 ug/I
10
pg/L
1
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—h—MW-7D(BG) tMW-8D --*- MW-81 --IFMW-11DR
MW-7D vs Deep Wells DATE
ChroER
Duke Cum inns AUGUST2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

100
14
10
µg/L
2L Standard10 ug/I
1
Sep-10
.Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—BMW-7SR(BG) tMW-10 tMW-11SR CIE—MW-13 MW-14 MW-15 BMW-8S MW-9
MW-7SR vs Shallow Wells DATE
Chromium (tot)
AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
to -
Gaston County, NORTH CAROLINA

10000
1000
-
2L Standard: 300 pWL
100
µg/L
■
■
20
■
■
10
® ®
®
®
®
■
®
i 10.
® 1
■
1
Sep-30 Jan-11
May-11
Sep-11
Jan-12
May-12
Sep-12
Jan-13 May-13 Sep-13
Jan-14 May-14
Sep-14 Jan-15
May-15
—BMW-7D (BG)
tMW-8D BMW-81 --IFMW-11DR
MW-7D vs Deep Wells DATE
Iron (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

100000
10000
1000
A Standard: 300 µg/L
100
10
1
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
->jr-MW-7SR(BG) BMW -SS tMW-9—*—MW-10 BMW-115R MW-13 BMW-14 —MW-15
MW-7SR vs Shallow Wells DATE
KR Iron (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

1000
.
100
■
2L Standard: 50 µg/L
■
µg/L
■
■
10
®
®
®
®
5
1
Sep-10
Jan-11
May-11
Sep-11
Jan-12
May-12
Sep-12
Jan-13
May-13
Sep-13
Jan-14
May-14
Sep-14 Jan-15
May-15
tMW-7D(BG)
tMW-8D BMW-81 --M-MW-11DR
MW-71D vs Deep Wells DATE
EReli(tot, AUGUST2015
DukeCaro
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

100000
-
10000
-
0
EA00
1000
µ6/L
-
7
I
353
9 . .
.
.
■
.
185
.
.
132
100
or
6
00,■
2L Standard: 50 µg/L 43
8.4
®
32
■
®
18
4
10
■
.
.
4
1
,
Sep-10
Jan-11 May-11
Sep-11
Jan-12 May-12
Sep-12
Jan-13 May-13
Sep-13 Jan-14
May-14
Sep-14
Jan-15
May-15
t MW-11SR fMW-7SR(BG)
—0I
t MW-9 --IFMW-10
MW-13 MW-14
MW-15
MW-7SSR vs Deep Wells DATE
ERManganese (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

9
9
21-Standard: 6.5 - 8.5 SU
8
8
7
7
SU
6
6
5
5
4
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—vk—MW-7D(BG) tMW-8D tMW-81 --)rMW-11DR
MW-7D vs Deep Wells DATE
pH, field
AUGUST2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

9
� -
8
2L Standard: 6.5 - 8.5 SU
7
6.95
6.86 6.79 6.8 6.81 6.71 6.73 6.79 6.85 5.74 6.73 6.76
6.63 6.64 6.64
6
5
SU
4
3
-
2
1
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—rir--MW-75R(BG) +MW-8S tMW-9 --)IFMW-10 BMW-11SR +MW-13 BMW-14 —MW-15
MW-7SR vs Shallow Wells DATE
F)""Z pH, field
Duke Carolinas, LLC AUGUST 2015
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

10
i
1
pg/L
0
• ! ■ i i ■ ■ f ■ i ■ ! ■ �
2L Standard: 1 ug/I
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—BMW-7D (BG) +MW-8D +MW-81 --I—MW-11DR
MW-7D vs DeepWells DATE
KP Antimony (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

10
M/L
2L Standard: 1 ug/I
0
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
--A—MW-7SR(BG) BMW-10 tMW-11SR-If—MW-13 —MW-14 MW-15 BMW-8S —MW-9
MW-7SR vs Shallow Wells DATE
ERAntimony (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

10
2L Standard: lug/I
ug/I 1
IN M 0 M IN 0 0 01
0
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
MW-10 tMW-11DR —BMW-115R —04—MW-13 MW-14 MW-15 MW-8D MW-81 MW-8S tMW-9
Stacked Time Series Plots - Compliance Wells DATE
Antimony AUGUST 2015
Duke Energy Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
Figure 10-
Gaston County, NORTH CAROLINA

100,000
10,000
1,000
ug/1
300
2L Standard:
100
ON
IL
10
1
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tMW-10 t—MW-11DR MW-11SR —0—MW-13—0—MW-14 MW-15 MW-80 MW-8I MW-8S tMW-9
Stacked Time Series Plots - Compliance Wells DATE
Iron AUGUST 2015
Duke Energy Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
Figure 10-
Gaston County, NORTH CAROLINA

100,000
10,000
1,000
ug/I
1-7
100
2L Standard: g/I
10
eor
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tMW-10—FMW-I1DR fMW-11SR --(—MW-13—w—MW-14 BMW-15 +MW-8D —MW-81 —MW-85 tMW-9
Stacked Time Series Plots - Compliance Wells DATE
Manganese AUGUST 2015
Duke Energy Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
Figure10-
Gaston County, NORTH CAROLINA

ug/1
10
1
Oct-10
2L Standard: 10 ug/1
Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tMW-10 tMW-11DR—1rMW-11SR-I—MW-13 —OK—MW-14 — MW-15 MW-8D —MW-81 —MW-SS +MW-9
Stacked Time Series Plots - Compliance Wells DATE
Chromium AUGUST 2015
Duke Energy Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
Figure 10-
Gaston County, NORTH CAROLINA

9
8
7
2L Standard: 6.5 - 8.5 SU
6
5
SUI 4
3
2
1
0 -,
Oct-10 Feb-11 Jun-11 Oct-11 Feb-12 Jun-12 Oct-12 Feb-13 Jun-13 Oct-13 Feb-14 Jun-14 Oct-14 Feb-15 Jun-15
tMW-10 -41-MW-11DR fMW-11SR -0-BMW-13 --IFMW-14 tMW-15 +MW-8D —MW-81 —MW-85 tMW-9 —Seriesl—Series2
Stacked Time Series Plots - Compliance Wells DATE
PH AUGUST 2015
Duke Energy Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
Figure10-
Gaston County, NORTH CAROLINA

1000
Ratios > 1 signify concentration greater than concentration in background well.
44
100
072
109.032
® ® 97;. -- 7.719
70.5
®
®
43.190
8.722 36.923
®
43;6
4.051
19.520
17.281
2.343
10
21LStandard: 300 Ng/L
O
';�
6.561
7.290
0
4. 32
.976
221
3. 1
/2.575
2.3941.96
2.903
342.141
005
1.4 ■■
■ ■
.584
c
a 1
.872
:gap
76BB
0.90
0.733
.658
0.661
v
S
542
0 -
.424
.443
452
.354 0.3
67
0.317
0.287
.249
0.258
.204
197
0.147
3
-
0.127
0,109
0
7.046
0.076
0.052
-
0
0.030
0
Sep-30
Jan-11
May-11 Sep-11 Jan-12 May-12 Sep-12
Jan-13 May-13 Sep-13 Jan-14 May-14
Sep-14 Jan-15 May-15
-BMW-81/MW-7D
+MW-11DR/MW-7D +MW-10/MW-7SR-IFMW-11SR/MW-7SR
tMW-13/MW-7SR --MW-14/MW-7SR
-MW-15/MW-7SR-MW-8S/MW-7SR
tMW-9/MW-7SR
Correlation Plot - Compliance Wells vs. Background DATE
FY� Iron (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

1000
Ratios > 1 signify concentration greater than concentration in background well.
5.8065
265.78195
000
3.2500
153.7313
162.2222
118.6765
100
All
91.1504 84.4262
9.8802
42
34.2105
33.
c
10
8.6
u
o
® 78
5.6061
7.6
6
`m
A,6.3.4
®
581
3.1239
6
32
- 00
3.10
c
®
2.4444
u
2.1257
1. 59
_
1.18
T1251
1.15
1842 12
.250
.7 it
1.2593
1
0.9298
852
.7734
0.7611
0.686
0.6852
0. 60
0.5526
.48
0.4750
_
0.4186
2985
.31
0.3226
JWM
7
8.�368
.2124
. 8
6
.1332
0.1414 0.1393
0.1481
0
Sep-10
Jan-11
May-11 Sep-11 Jan-12 May-12
Sep-12 Jan-13 May-13 Sep-13 .Jan-14
May-14
Sep-14 Jan-15
May-15
-9jr-MW-81/MW-7D
BMW-11DR/MW-7D tMW-8S/MW-7SR --)I(-MW-9/MW-7SR tMW-10/MW-7SR
MW-11SR/MW-7SR BMW-13/MW-7SR
-MW-14/MW-7SR
-4-MW-15/MW-7SR
Correlation Plot - Compliance Well vs. Background DATE
Manganese (tot) AUGUST 2015
Duke Carolinas,, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

10
Ratios > 1 signify concentration greater than concentration in background well.
0
c
0
a
c
m
c 1
v
c
m
c
0
V
0
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—rhr-MW-81/MW-7D tMW-11DR/MW-7D tMW-10/MW-7SR—W—MW-11SR/MW-7SR tMW-13/MW-7SR +MW-14/MW-7SR—MW-15/MW_7SR—MW-8S/MW-7SR—*—MW-9/MW-7SR
Correlation Plot - Compliance Well vs. Background DATE
Ch
Duke Cum inns AUGUST2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

1.6
Ratios > 1 signify concentration greater than concentration in background well.
2L Standard: 6.5 - 8.5 SU
1.4
1.2
_
1.0
0
z
c
0
0.8
m
0
0
c
0.6
m
c
0
u
0.4
0.2
0.0
Sep-10
Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13 Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
—dr-MW-81/MW-7D tMW-11DR/MW-7D tMW-10/MW-7SR—W—MW-11SR/MW-7SR tMW-14/MW-7SR—0—MW-15/MW-7SR BMW-8S/MW-7SR—MW-9/MW7SR
Correlation Plot - Compliance Well vs. Background DATE
ER(fipH
eld)
Dukear AUGUST2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

0
10
Ratios > 1 signify concentration greater than concentration in background well.
0 1 1
Sep-10 Jan-11 May-11 Sep-11 Jan-12 May-12 Sep-12 Jan-13 May-13
—91r-MW-81/MW-7D tMW-11DR/MW-7D +MW-10/MW-7SR —I--MW-11SR/MW-7SR tMW-13/MW-7SR
Sep-13 Jan-14 May-14 Sep-14 Jan-15 May-15
MW-14/MW-7SR MW-15/MW-7SR—MW-8S/MW-7SR tMW-9/MW-7SR
Correlation Plot - Compliance Well vs. Background DATE
KR Antimony (tot) AUGUST 2015
Duke Carolinas, LLC
Riverbend Steam Station Ash Basin FIGURE
10-
Gaston County, NORTH CAROLINA

0
�o
�o
Jy
0'
AB
�o
oc' �
2
oao Vo
Gr \
/
TO
0
Calcium
CATIONS
�00
Ash Basin Porewater
• Ash Basin Water
00 Background Monitoring Wells
0a
4
3k
00
W 90
�G
� 3
,Bas
b�
ryo
F.
o �o bo 0 00 00 0
0
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite).
DATE
PIPER DIAGRAM -ASH BASIN POREWATER, WATER, AND AUGUST 2015
FY�
BACKGROUND MONITORING WELLS
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 10-
GASTON COUNTY. NORTH CAROLINA

�00
�o
Q� SW
�Ory 00 AB-5S
O�
Z SW-3
S-9
oar 'VO
Ur
a
0
�O 00 00 10 a0 0
O
Calcium
CATIONS
Ash Basin Porewater
Ash Basin Water
Co
,s od Seeps
4
3k
SW-2 co0 y
S 5 sG
AB-7S 3
b0
10
F.
n
O �O a0 00 00 00
n
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite)
DATE
PIPER DIAGRAM -ASH BASIN POREWATER, WATER, AND AUGUST 2015
FY�
SEEPS
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 10-
GASTON COUNTY, NORTH CAROLINA

moo
Ash Basin Porewater
GWA-3SA
`m
GWA-3D
Downgradient "S" Wells
oo
Downgradient "D" Wells
�O
C-15
odd
q
GWA-10S
Downgradient "BR" Wells
�O
Q
MWAD
43
pR
AMS
x
Z 6'0
AB-5S
00 W
AB-8D
kQ
�N�.
A"
O
GWA-8S
MWA1DR W-11SR
G3
-1
a0
vO GWA-2S
O
b
i
GWA-8D
�♦ AB-7S
GWA-9D
Ur
ABA S
AB -SS
AB-6BRU
TO,
RO
WA-7BR
-5
O
AB-3D
O
GWA-7D
,
0
Calcium
CATIONS
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite).
DATE
PIPER DIAGRAM -ASH BASIN POREWATER, WATER, AND AUGUST 2015
FY�
DOWNGRADIENT "S", "D", AND "BR" MONITORING WELLS
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 10-
GASTON COUNTY. NORTH CAROLINA

�00
Ash Basin Porewater
Ash Basin Water
�a
Upgradient "S" Wells
?0 GWA4S C-1S
ny�
Q
Upgradient "D" Wells
Q'
c3
Upgradient "BR" Wells
Ory 5W-1
00
k
00 W
sW-2
p� AB-5SL
G
Z SW-3
I
0
Oda VO AB-7S
b0
Ur
�
AB-5S AB-4S
tJ0
ti0
GWA-20S
GWA-22BRI
GWA-M
O /
/
O
0
bO 00 00 10 'PO 0
Calcium
CATIONS
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite)
DATE
PIPER DIAGRAM -ASH BASIN POREWATER, WATER, AND AUGUST 2015
F)l"R UPGRADIENT "S", "D", AND "BR" MONITORING WELLS
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 10-
GASTON COUNTY. NORTH CAROLINA

�00
Ash Basin Porewater
Ash Basin "S" Wells
do �,�
Ash Basin "D" Wells
y i
0a�
Ash Basin "BR" Wells
Q AB-8S C-is
n
G3
Ory
x
00 00
W
C^ A LRQ
O� AB-5SL
Oil
1s.
a0 v AS-1S
�L O AB-7S
O
b
Ur
/
AB-1 S
AB-5S
A -5
O AD
S-2
O
Calcium
CATIONS
n
O �O b0 00 eO 00
n
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite)
DATE
PIPER DIAGRAM -ASH BASIN POREWATER, "S", "D", AND "BR" MONITORING WELLS
DUKE ENERGY CAROLINAS, LLC AUGUST 2015
L7"i"103 RIVERBEND STEAM STATION ASH BASIN FIGURE
10-
GASTON COUNTY. NORTH CAROLINA

moo
190 'o ® Ash Basin "S" Wells
�O
�y d� Seeps
OryQ AMS 4�x
0 O �i
O S 2 O Oryco
� s
s° c3
a° Vo VO
AB-1 S
G
AS-1S s_y /
�O 1 �O
O / \ / \ / \ / \ / \ O
'b0 1O 00 �0 �p O O
Calcium
CATIONS
�O �O 00 00
Chloride+Nitrogen, NO2 plus NO3
ANIONS
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 54 used (average of nitrate and nitrite).
DATE
PIPER DIAGRAM - ASH BASIN "S" WELLS AND SEEPS
DUKE ENERGY CAROLINAS, LLC AUGUST 2015
RIVERBEND STEAM STATION ASH BASIN FIGURE
10-
GASTON COUNTY, NORTH CAROLINA

1 12 I 3 14 I 5 16 17 18
A
SOUTHWEST
800 F----.
70,
GWE
z
0
a
w
w
GWA-4BR
jig/L)
hromium
38.1
ed Solids
1,500,000
anadium
0.9
AS-2D
) I I—
�-4D GWA-4BR — — — — —
GWA-4S ------
) I I
500 H
0
-------------------- = AS-2S
Ana lyte f L
Chromium
AS -IS Cobalt
GWA-4S
Ana lyte f L
Cobalt
1.7
Manganese
120
Vanadium
0.841
+GWA-4D
Ana lyte J
Vanadiuml 2.4
Ana to f L
Baron
2200
Cobalt
5.4
Iron
660
MancIlanese
1900
Total Dissolved Solids
750000 3-
Vanadium
1.6 J+
AS-1D
Ana tee
f L
Antimony
3
Chromium
903
Vanadium
14.4
AS- 2 D
Ana to J L
Chromium 22.5
%'anadiu111 34.E
Iro n
Klan anew
Vanadium
200 400 600 800 1000 1200
DISTANCE (ft)
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
SECTION A
SCALE: HORIZ 1 "=100' IFIC 11-1
VERT 1 "=25'
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
000000000246403
AS-3D
-- L---------------_
AS-3D
44.8 Ana to 1 L
12.4 1 Antimony 1.6
2090 Chromium 23.5
1:1111111
!�anadi�rm 18.2
1400
1600
NOT FOR
CONSTRUCTION
1800
2000
NORTHEAST
1 800
700
600
LLJ
Z
J
2
U
Q
--J 500
2200
DUKE ENERGY CAROLINASILIC
/� DUKE
ENERGY.:
GASTON COUNTY'
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
ANALYTE
NC 2L
GROUNDWATER IMAC
ANTIMONY
1**
ARSENIC
10
BARIUM
700
BERYLLIUM
4**
� CADMIUM UM
200
CHLORIDE***
250,000
CHROMIUM
10
COBALT
**
COPPER***
1,000
IRON
300
I LEAD
15
(MANGANESE
50
MERCURY
1
NICKEL
100
NITRATE***
10,000
NITRATE AS N***
1.000
pH (field)
6.5 — 8.5
SELENIUM
20
SULFATE***
250,000
THALLIUM
0.2
TOTAL DISSOLVED SOLIDS
500,000
VANADIUM
0.3**
ZINC***
1000
** Interim Maximum Allowable Concentration (IMAC)
*** Unit reported in mg/L in standard, converted
here to pug/L to match units displayed on figure.
All units shown in pug/L except pH which is
standard units.
NOTES:
U = NOT DETECTED ABOVE LABORATORY
REPORTING LIMIT
J = ESTIMATED CONCENTRATION
3.0 = LESS THAN LABORATORY REPORTING LIMIT
J+ = ESTIMATED CONCENTRATION BIASED HIGH
J— = ESTIMATED CONCENTRATION BIASED LOW
*DNE = DOES NOT EXCEED
LEGEND:
WATER TABLE SURFACE (SUMMER 2015)
ASH — ASH
F — FILL
S — ALLUVIUM
M1 — SOIL/SAPROLITE; N < 50
M2 — SAPROLITE/WEATHERED ROCK;
N >! 50% OR REC < 50%
TZ — PARTIALLY WEATHERED ROCK;
REC>50% AND RQD <50%
BR — SOUND ROCK;REC >: 85% AND RQD >- 50%
CROSS SECTION A -A'
GROUNDWATER ANALYTICAL RESULTS
0 1" Z, FILENAME
SCALE AS NOTED
D
C
B
A
SHEET
FIGURE 10- .1

1 1 2 1 3 1 4 1 5 1 6 1 7 1 8
SOUTHWEST
800
700
I
O
LL.I
z
0
j W
w z
J
W J
_
U
Q
600
AB- 7S
Ana lyte 1 L
Arsenic
Cobalt
Iron
Manganese,
Vanadiurn
AB- 7I
Ana lyte (p / L
Cobalt
1
Iron
A
Man anese
L
500 1-
2200
AB- I U
Ana lyte J L
Antimony 7.5
Chromium 24.7
Vanadiuml 40.5
'N%% N"*�
AB-3BR I
AB-3D Fff 1K1TC0AAC-n1ATC nA\A
--—————————————— — — — ---
WATER
IN BASIN
AB-21a
Ana a /L
Chromium 13
Vanadium 32.4
AB-2D
AB-2S II
SECONDARY DAM
AB-2S
Anal a /L
Antimony
Cobalt
Iron
Manganese
Vanadium
Vanadium 2.8
GWA-9BR
Arsenic
Chromium
Iran
Vanadium
2400 2600 2800 3000 3200 3400 3600 3800 4000 4200
DISTANCE (ft)
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
SECTION A
SCALE: HORIZ 1 "=100' IFIC 11-1
VERT 1 "=25'
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
000000000246403
NOT FOR
CONSTRUCTION
10.7
40.6
450
67.5
A'
NORTHEAST
1 800
700
GWA-9BR
GWA-9S
]P
GWA-9S
Arm lyte / L
Cobalt 50.1
Manganese 2900
Vanadium 0.52 3+
Iwo]
J 500
4400
DUKE ENERGY CAROLINASILIC
/� DUKE
ENERGY.:
GASTON COUNTN
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
■C
ANALYTE
NC 2L
GROUNDWATER IMAC
ANTIMONY
1**
ARSENIC
10
BARIUM
700
BERYLLIUM
4**
BORON
700
CADMIUM
2
CHLORIDE***
250,000
CHROMIUM
10
COBALT
1**
COPPER***
1,000
IRON
300
I LEAD
15
(MANGANESE
50
MERCURY
1
NICKEL
100
NITRATE***
10,000
NITRATE AS N***
1.000
pH (field)
6.5 - 8.5
SELENIUM
20
SULFATE***
250,000
THALLIUM
0.2
TOTAL DISSOLVED SOLIDS
500,000
VANADIUM
0.3**
ZINC*** 1000 I C
** Interim Maximum Allowable Concentration (IMAC)
*** Unit reported in mg/L in standard, converted
here to pug/L to match units displayed on figure.
All units shown in pug/L except pH which is
standard units.
NOTES:
U = NOT DETECTED ABOVE LABORATORY
REPORTING LIMIT
J = ESTIMATED CONCENTRATION
3.0 = LESS THAN LABORATORY REPORTING LIMIT I—
J+ = ESTIMATED CONCENTRATION BIASED HIGH
J- = ESTIMATED CONCENTRATION BIASED LOW
*DNE = DOES NOT EXCEED
LEGEND:
WATER TABLE SURFACE (SUMMER 2015)
ASH - ASH
F - FILL
S - ALLUVIUM
M1 - SOIL/SAPROLITE; N < 50
M2 - SAPROLITE/WEATHERED ROCK;
N >! 50% OR REC < 50%
TZ - PARTIALLY WEATHERED ROCK;
REC>50% AND RQD <50%
BR - SOUND ROCK;REC >: 85% AND RQD >- 50%
CROSS SECTION A -A'
GROUNDWATER ANALYTICAL RESULTS
0 1" 2° FILENAME
SCALE AS NOTED
/W
SHEET
FIGURE 10- .2

1
2 1 3
5
n.
7
:
w
r
r
B
WEST
800
700 —
an
��
M I
I
3i0
CD
r,-- GWA-3S
650
.••
550
500 1-
0
GWA-3D
knalyte (Ng/L)
Cobalt
1.1
Manganese
9200
Sulfate
1310000
Total Dissolved Solids
2390000
Vanadium
4.6
GWA- 3SA
Ana lyte / L
Coba1t
18.4
Iro n
420
Manganese
12700
Sulfate
1420000
Total Dissolved Solids
23000000
Vanadium
1.3
200
400
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
C-1BRU C-1S
C-2D
C-is
Analyte WglL)
Arsenic
Cobalt
Iron
25.8
102
175000
Manganese
3200
Sulfate
559000
Total Dissolved Solids
1110000
F,
Vanadium
4
C-2D
Analyte (Ng/L)
Vanadiuml 10.9
ISSUE DATE DESCRIPTION
C-2S
C-2S
Analyte [pg/I
Cobalt
Manganese
Vanadium
39.7
600
0.523
AB-8D
Ana to / L
flan anew 140
Vanadium2.7
1200 1400
DISTANCE (ft)
SECTION B
SCALE: HORIZ 1 "=100' IFIG 11-1
VERT 1 "=25'
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
000000000246403
1600
NOT FOR
CONSTRUCTION
PRIMARY DAM
AB-8S
Analyte (Ng/L)
Manganese
Vanadium
15Q
0.793
AB-5SL
Analyte / L
Antimony ti.2
Arsenic 5.1
Boron 2400
Vanadium 151
AB -SD
Ana lyte / L
Antimony 1.2
Vanadium 12.5
2000
2200
AB-5D
AB-F SL AB-5S
DUKE ENERGY CAROLINAS,LLC
/� DUKE
AENERGY..
GASTON COUNTN
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
EAST
800
700
AB -SS
Analyte
/ L
Antimony
21.6
f Arsenio
651
Boron
1400
iron
660
Thallium
0.48
Vanadium
2-31
�E
1 50
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
ANALYTE
NC 2L
GROUNDWATER IMAC
ANTIMONY
1**
ARSENIC
10
BARIUM
700
BERYLLIUM
4**
BORON
700
1 CADMIUM
2
CHLORIDE***
250,000
CHROMIUM
10
COBALT
1**
COPPER***
1,000
IRON
300
I LEAD
15
(MANGANESE
50
MERCURY
1
NICKEL
100
NITRATE***
10,000
1 NITRATE AS N***
1.000
pH (field)
6.5 - 8.5
SELENIUM
20
SULFATE***
250,000
THALLIUM
0.2
TOTAL DISSOLVED SOLIDS
500,000
VANADIUM
0.3**
ZINC***
1000
6
** Interim Maximum Allowable Concentration (IMAC)
*** Unit reported in mg/L in standard, converted
here to pug/L to match units displayed on figure.
All units shown in pug/L except pH which is
standard units.
NOTES:
U = NOT DETECTED ABOVE LABORATORY
REPORTING LIMIT
J = ESTIMATED CONCENTRATION
No
3.0 = LESS THAN LABORATORY REPORTING LIMIT
J+ = ESTIMATED CONCENTRATION BIASED HIGH
O
J- = ESTIMATED CONCENTRATION BIASED LOW
W *DNE = DOES NOT EXCEED
U
LLL
550
Z
J
U
Q
500
2400 2600
LEGEND:
WATER TABLE SURFACE (SUMMER 2015)
ASH - ASH
F - FILL
S - ALLUVIUM
M1 - SOIL/SAPROLITE; N < 50
M2 - SAPROLITE/WEATHERED ROCK;
N >! 50% OR REC < 50%
TZ - PARTIALLY WEATHERED ROCK;
REC>50% AND RQD <50%
BR - SOUND ROCK;REC >: 85% AND RQD >- 50%
CROSS SECTION B-B'
GROUNDWATER ANALYTICAL RESULTS
0 1" 2° FILENAME
SCALE AS NOTED
C
C
SHEET
FIGURE 10- .1

1
2
3
5
A
7
:
WEST
800
700
6
O
z •-
0
Q Lv
J
W
LLL
600
LL.I
Z
J
U
�Q
550
500
B'
EAST
AB -IS
Ana lyte f L
INTERMEDIATE DAM Antim0a 3.2
Cubak 15.9
AB-4D
WATER SECONDARY DAM AB-1 D Iron 510
- AB-4S IN BASIN AB-1S
Manganese 250
Vanadium 1.8
i
MW-13
R- - _ _ CATAWBA RIVER
Arsenic
MOUNTAIN ISLAND LAKE
AB-1 [
Ana e f L
Antimony 6.3
Chromium 49.2
Cobalt 2.9
==J
Mom iron 370
Vanadium 20
AB-4D
Ana to j L
Antimony1.2
Vanadium 24
Antimony 2.2
42$
Cobalt 5.7
Manganese 1,240
Vanadium 166
AB-45
Analyte CN91�]
h7W-13
Ana e L)
2600 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800
DISTANCE (ft)
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
SECTION rB
SCALE: HORIZ 1 "=40' FIG 11-1
VERT 1"=10'
PROJECT MANAGER
DRAWN BY: -
DESIGNED BY: -
CHECKED BY: -
APPROVED BY: -
PROJECT NUMBER 000000000246403
NOT FOR
CONSTRUCTION
DUKE ENERGY CAROLINASILIC
/� DUKE
ENERGY.:
GASTON COUNTY
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
700
650
550
500
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
C
ANALYTE
NOT FOR
CONSTRUCTION
DUKE ENERGY CAROLINASILIC
/� DUKE
ENERGY.:
GASTON COUNTY
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
700
650
550
500
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
C
ANALYTE
NC 2L
GROUNDWATER IMAC
ANTIMONY
1**
� ARSENIC
10 �
� BARIUM
700 �
BERYLLIUM
4** �
BORON
700 �
� CADMIUM
2 �
� CHLORIDE***
250,000 �
CHOBOMIUM
10
**
� COPPER***
1,000 �
� IRON
300 �
I LEAD
15 �
(MANGANESE
50 �
I MERCURY
1 �
� NICKEL
100 �
� NITRATE***
10,000 �
� NITRATE AS N***
1.000 �
pH (field)
6.5 - 8.5
� SELENIUM
20 �
� SULFATE***
250,000 �
� THALLIUM
0.2 �
� TOTAL DISSOLVED SOLIDS
500,000 �
VANADIUM
0.3**
ZINC*** 1000 I C
** Interim Maximum Allowable Concentration (IMAC)
*** Unit reported in mg/L in standard, converted
here to pug/L to match units displayed on figure.
All units shown in pug/L except pH which is
standard units.
NOTES:
U = NOT DETECTED ABOVE LABORATORY
REPORTING LIMIT
J = ESTIMATED CONCENTRATION
3.0 = LESS THAN LABORATORY REPORTING LIMIT l---
J+ = ESTIMATED CONCENTRATION BIASED HIGH
J- = ESTIMATED CONCENTRATION BIASED LOWLV
*DNE = DOES NOT EXCEED
LEGEND:
WATER TABLE SURFACE (SUMMER 2015)
ASH -ASH
F - FILL
S - ALLUVIUM
M1 - SOIL/SAPROLITE; N < 50
M2 - SAPROLITE/WEATHERED ROCK;
N >- 50% OR REC S 50%
TZ - PARTIALLY WEATHERED ROCK;
REC>50% AND RQD <50%
BR - SOUND ROCK;REC >- 85% AND RQD >- 50%
CROSS SECTION B-B'
GROUNDWATER ANALYTICAL RESULTS
0 1" 2- FILENAME
SCALE AS NOTED
SHEET
FIGURE 10- .2

HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
1 000000000246403
NOT FOR
CONSTRUCTION
DUKE ENERGY CAROLINAS,LLC
DUKE
ENERGY.:
GASTON COUNTY
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
CROSS SECTION C-Cl
GROUNDWATER ANALYTICAL RESULTS
0 1" 2° FILENAME
SCALE I AS NOTED
SHEET
FIGURE 10-

HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
1 000000000246403
NOT FOR
CONSTRUCTION
DUKE ENERGY CAROLINAS,LLC
DUKE
ENERGY.:
GASTON COUNTY
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
CROSS SECTION D-D'
GROUNDWATER ANALYTICAL RESULTS
0 1" 2° FILENAME
SCALE I AS NOTED
SHEET
FIGURE 10-

1
2
3
5
1.1
7
:
E
NORTH
800
70
650
I,
a
w
J
LIJ MW-9D
M
500
400
MW-9D
Ana lyte / L
Say rn pie 1
Sample 2
Antimony
5.4
2.7
Chromium
20.6
27
Vanadium
12.5
12.8
MW-9BR
Ana a /L
Antimonyl 2.3
Vanadium 7.8
AS- 2D
Ana lyte / L
Chromium 22.5
Vanadium 34.6
AS-2S
Anallyte (N9/L)
Chromium
44.8
Cobalt
12.4
Iran
2090
Manganese
640
Vanadium
3.9
GWA-23D
Ana to 1 L
Chromium 55
Vanadium 34.1
E'
SOUTH
800
GWA--23BR
I
1 q I GWA-23S
1' ' ' 400
0 200 400 600 800 1000 1200 1400 1600
DISTANCE (ft)
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION
SECTION E
SCALE: HORIZ 1 "=80' IFIG 11-1
VERT 1 "=40'
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
000000000246403
NOT FOR
CONSTRUCTION
DUKE ENERGY CAROLINASILIC
/� DUKE
ENERGY.:
GASTON COUNTN
RIVERBEND STEAM STATION
COMPREHENSIVE SITE
ASSESSMENT
NORTH CAROLINA
NOTE:
1. CONCENTRATIONS OF CONSTITUENTS OF
INTEREST IN GROUNDWATER REPORTED IN
UNITS OF MICROGRAMS PER LITER (ug/L)
ANALYTE
NC 2L
GROUNDWATER IMAC
ANTIMONY
1**
ARSENIC
10
BARIUM
700
BERYLLIUM
4**
BORON
700
CADMIUM
2
CHLORIDE***
250,000
CHROMIUM
10
COBALT
1**
COPPER***
1,000
IRON
300
I LEAD
15
(MANGANESE
50
MERCURY
1
NICKEL
100
NITRATE***
10,000
NITRATE AS N***
1.000
pH (field)
6.5 — 8.5
SELENIUM
20
SULFATE***
250,000
THALLIUM
0.2
TOTAL DISSOLVED SOLIDS
500,000
VANADIUM
0.3**
ZINC***
1000
** Interim Maximum Allowable Concentration (IMAC)
*** Unit reported in mg/L in standard, converted
here to lug/L to match units displayed on figure.
All units shown in pug/L except pH which is
standard units.
NOTES:
U = NOT DETECTED ABOVE LABORATORY
REPORTING LIMIT
J = ESTIMATED CONCENTRATION
3.0 = LESS THAN LABORATORY REPORTING LIMIT
J+ = ESTIMATED CONCENTRATION BIASED HIGH
J— = ESTIMATED CONCENTRATION BIASED LOW
*DNE = DOES NOT EXCEED
LEGEND:
WATER TABLE SURFACE (SUMMER 2015)
ASH — ASH
F — FILL
S — ALLUVIUM
M1 — SOIL/SAPROLITE; N < 50
M2 — SAPROLITE/WEATHERED ROCK;
N >! 50% OR REC < 50%
TZ — PARTIALLY WEATHERED ROCK;
REC>50% AND RQD <50%
BR — SOUND ROCK;REC >: 85% AND RQD >- 50%
CROSS SECTION E-El
GROUNDWATER ANALYTICAL RESULTS
0 1" 2° FILENAME
SCALE AS NOTED
SHEET
FIGURE 10-
C
C
LV
/0

NOTES:
1, ASH BASIN WASTE BOUNDARIES AND ASH STORAGE AREA BOUNDARIES ARE APPROXIMATE.
2. PRIVATE WELLS LOCATIONS ARE APPROXIMATE..
3.ORTHOPHOTOGRAPHY IS FROM NC ONEMAP GIS ONLINE SERVICE,
4. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L.0107(a).
5. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS LAKE NORMAN SOUTH. NC AND MOUNTAIN ISLAND LAKE. NO -VA.
6. DUKE ENERGY PROPERTY BOUNDARYWAS SUPPLIED BY DUKE ENERGY REAL ESTATE-
7. PROPERTY BOUNDARIES WERE SUPPLIED BY THE GASTON COUNTY AND MECKLENBURG COUNTY GIS OFFICES.
S. INFORMATION PERTAINING TO IDENTIFIED WATER SUPPLY WELLS IS INCLUDED IN TABLE 4.1
SCALE {FEET}
500 0 500 1.000
'try#
—DUKE ENERGY PROPERTY BOUNDARY
cif. �� ` • ASH BASIN WASTE BOUNDARY
�,,�;'� •
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
FT i fI • —
�t� COINCIDENT WITH DUKE ENERGY
l�rye PROPERTY BOUNDARY
0.5 MILE OFFSET FROM ASH BASIN
COMPLIANCE BOUNDARY
STREAM
PROPERTY LINES
REPORTED PRIVATE WATER SUPPLY WELL
F)l
RECEPTOR MAP
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
NPDES PERMIT #NCO004961
GASTON COUNTY, NORTH CAROLINA
DATE
NOVEMBER 2015
FIGURE
1-4

~ econdary Cell
i ASHSASIN
scharge Tower
(PRIMARY
CELL)
CINDER
. STORAGE`'
_as�, ASH
STORAGE`
F31VEREND. �a'i #_ rt
c _
O
_ L
C -
_ ` r
7 f
00.
x
i
NOTES:
1.ASH BASIN WASTE BOUNDARIES AND ASH STORAGE AREA BOUNDARIES ARE APPROXIMATE. SCALE (FEET
2. PRIVATE WELLS LOCATIONS ARE APPROXIMATE.
3, ORTHOPHOTOGRAPHY IS FROM NC ONEMAP GIS ONLINE SERVICE. 500 0 500 1,000
4. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15ANGAC 02L-0107Iaj.
5. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS LAKE NORMAN SOUTH. NC AND MOUNTAIN ISLAND LAKE, NC -VA.
6. DUKE ENERGY PROPERTY BOUNDARY WAS SUPPLIED BY DUKE ENERGY REAL ESTATE.
7. PROPERTY BOUNDARIES WERE SUPPLIED BY THE GASTON COUNTY AND MECKLENBURG COUNTY GIS OFFICES.
6, INFORMATION PERTAINING TO IDENTIFIED WATER SUPPLY WELLS IS INCLUDED IN TABLE 4-1
r.
Legend
�. — — — DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
? ' — COINCIDENT WITH DUKE ENERGY
PROPERTY BOUNDARY
STREAM
?�� t "'_ ►t i DISCHARGE TOWER
MUNICIPAL WATER INTAKES
t RIVERM ILE
MUNICIPAL WATER INTAKES MAP DATE
DUKE ENERGY CAROLINAS, LLC NOVEMBER 2015
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA FIGURE
1-6

Y 'F
f*
L�
I
DU�EE�E�G�
c
� d
i r � � � '' r 4 ` � �� �A + r-$� �� ��4x f'jl n.rjrry S� �: • �dry �jS� r;t G
l�-
0 't..
r•
ivy
ML
a���% _ lr � � 4 *, y�,ti ' } il}► x y,__Wi .� ` 4 5 r t,... - . .
•
z
4y
LEGEND:
DUKE ENERGYPROP€RTY BOUNDARY
r.
_ _ _ _ _
ASH BASIN COMPLIANCE BOUNDARY
1-2S
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
-
- - — _
WITH DUKE E NE RGY PROPERTY BOUNDARY
CINDER
-
ASH BASIN WASTE BOUNDARY
aRAGE
:-6ASH
OR CINDER STORAGE AREA BOLI NOARY
■ .
- STREAM
Q
r
TOPOGRAPHIC CONTOUR 14 FOOT(
EXISTING ASH BASIN VOLUNTARY GROUNDWATER
MONITORING WELL
d
EXISTING ASH BASIN COMPLIANCE GROUNDWATER
MONITORING WELL
GROUNDWATER MONITORING WELL LOCATION
-
•
OBSERVATION WELL LOCATION
? FraF
AREA OF WETNESS'SAM PLE LOCATIONS
n
9
SURFACE WATER SAMPLE LOCATION
NOTES:
1. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND 15 APPROXIMATE.
2. ASH STORAGE BOUNDARY AND CINDER STORAGE BOUNDARY ARE APPROXIMATE.
3. AS•SUI IT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY.
4. SHALLOW MONITORING WELLS ISI - WELL SCREEN INSTALLED ACROSS THE SURFICIAL WATER TABLE.
S. SHALLOW LOWER MON17ORI NG WELLS (SL} - BOTTOM OF WELL SCREEN SET AT TH E ASH-REGOUTH I NTERFACE.
G. INTERMEDIATE MONITORING WELLS {I] - WELL SCREEN INSTALLEOIN REGOUTH BELOW WATER TABLE AND BELOW ASH IN ASH BASIN.
7. DEEP MONITORING WELLS (D) - WELL SCREEN INSTALLED IN THE TRANSITION ZONE BETWEEN COMPETENT BEDROCK AND THE REGOUTH.
9. BEDROCK. UPPER MONITORING WEDS MRUI - WELL SCREEN INSTALLED IN COMPETENT BEDROCK IN THE FIRST 15 FEET WHERE NO TRANSITION ZONE EXISTS.
9. BEDROCK MONITORING WELL (BR) - WELL. SCREEN INSTALLED IN ROCK FRACTURE ZONE WITHIN COMPETENT BEDROCK,
10. TOPOGRAPHY DATA FOR THE SITE WAS OBTAINED FROM NC DOT GEOGRAPHIC INFORMATION SYSTEM {GISI WEB SITE.
11.- ORTHOPHOTOG RAPHY WAS OBTAINED FROM W SP (DATED APRIL 2014).
12- THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 1SA NCAC 02L -0107 W-
13. AREAS OF WETNESS SAMPLING LOCATIONS WERE OBTAINED BY HDR USING A TRIMBLE HANDHELD GP5 UNIT ON APRIL 79, 2014,
14. HYDROGRAPHY WAS OBTAINED FROM USES 7.5•MLNUTE SERIES TOPOGRAPHIC MAPS MOUNTAIN ISLAND LAKE, NC.
SCALE (FEET)
ISO, P 150, $00,
I • = 960'
x1d
SITE SAMPLING LOCATIONS
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NTY, NORTH CAROLI NA
DATE
FEBRUARY 2016
FIGURE
2-1

1 East Basin Y
Mountain island Lake
Soil/Sapprolite
Shallow (Flow Layer
Fractured Bedrock/Bedrock. Flow Layer
SCALE (FEET)
500 D 500 1,000
ar.w c..,. rase. cw�n. ruc xexam*s
Areas with Highest Concentrations
of Constituents
1 Antimony
2 Arsenic
3 Baron
4 Chromium
5 Cobalt
6 Hexavalent Chromium
7 Sulfate
8 Thallium
9 Vanadium
LEGEND
Approximate Lake I River Extent
El
Regolith (Shallow and Deep Flow Layers)
71
Bedrock
0
Source Area
Areas of elevated constituent
concentration
�►
Groundwater Flow Direction
Cross Section Location 8-6'
NOTE:
VISUAL AID ONLY - DEPICTION MOTTO SCALE
SITE CONCEPTUAL MODEL - 3D REPRESENTATION
DUKE ENERGY CAROLINAS, LLC
RIVEREEND STEAM STATION
GASTON COUNTY, NORTH CAROLINA
DATE
FEBRUARY 2016
FIGURE
3.1

2
3
0
5
7
NOTES:
WEST
750i
700
650
r
N
0z Lv
(y
5
L1
Lti
Lv
Z
J
U
-16,
b00
2600
EVAPORATION/PRECIPITATION
INTERMEDIATE DAM b
AB-4D . P i r♦ ►
+ + + + +' + ' WATER �' ' , ` �` b b SECONDARY DAM
+ i f # + + + + + + + AB-4S IN BASIN
+, +.+ + + + + + # f + + + + + + + f + + + f + + + + + # + + + # + + f # f + +
+ + + + + + + + + + + + + + + + + + + # # + + + + + + + # + + + + + + f + + + + + #
+ + + + + + + # + # + + { + + + + # f f # f + + + + # + + + # f i + + # f # + + + +
♦^+� — - � iF-^F �' � 1—+—+'—+_ -4— ♦—+—+ �- � +�-+�. �- .�� i`-7• . 6 3_ i_+�.+ .L- � •t—+ + -+- � # +
# + # + + # + + # # + # a + + + + + + + # + } # # + + + # + + + { + + # + + + } + + + + + # + } + + + + + + } + + } } + + + + + + + + + + + i + + + + + + } + + + + + + + + + + + + + + + + + #
# # # # # # h + # + + + + + + + + + # + + # # # + + + + + # } # } + # + # # + + + + + + + + + # + + # + # + # + + + # + + + + # h + + + + + + + + + + -+ # # + + + # + + .. + + + + + + + + + # +
+ + + + + + # + # # # + # # # + # + # # # # + + # + + + + + # + + + + + + # # # + + # + + + + + + + + + + # + + # # # + + + # # + + # # # + + + # # # + # # + + # # # + # + + # + + + + # + + + +
+ + + # + + -h + + + + + + + + + + + + + + + + + + + + + + + + + + + + # + + + + + + # + + + + + + + + + # # + + + + + # # + + + + + + + + + # # + + + + + + # # # + + . + + + + # + + + +
+ + + + + + + + + + + + + + + + + + + # # + + # + +r# + + + + + + + + # # + # + # + + + # + + + + + + + + + + + + + + + + + + # +r+ + + + + + # + # + # + + + + + + # + # # # + # + + a + + +
# + + # k + -F + + # + + + ............
k + + # + + + # + k + + + + + # + k + k + + + + # + # k # + + + + # + k + k + + + + k + + } k + + + + # # # + + t # + + + + + # # # # + 4 # + + t + # + + + + + #
# # + + + + + # k + # + + i # + + + + + + + + # # + # # + # + + # + # + + + + + # + + + + + + # + + + # + # # + # + + # + # + + # # # + # + + # # + # + + . + # . k + + +. # + + + + # k + + + +
+ + # + + + h + + # } . . # t + + + + + + # + + + + .h + + # + + + # + # + + + + # + # + # . } # # # # } + + + + # + # + # + # # # . t + + + t + + + + + + # + + } # + + # •h + + + t + + # + +
+++++++##++#h+++f+}++++++ift++++++#t+#++t+f++++#+#++h+t+}#++#+++fi+#++++++}#+++++#++k+#++++.+#+#+++++ft+i+++++++++#++#++++#++++++f+h++#+++tf++++i + + + # #++++t+#+++++#+#h+++++}++++k+++++#
+ + + + + + # + + f + + + + + + + + f f + + } + + + + + + + + + + { # + } + + + + + t t # # + + + + + + i } + + # + + + + # + t } } + + + } + i•LEA G HATE + + + + + + + + # + + + + + + +
+ + } + t 4 } + + + + + + f # f # + t + + # + + + k # + + + + + + + + + + } + + ♦ + ♦ + # # + + + + + + + + + + + + + + + + + } + + + # + + + # + # + + ♦ #h + + + + + + #
+ t + # + + + + } + + + + + x + T t + FL E A L 1 ATE + + # + Y # f + + 4 + + # + + + + + + + f + + . f f + + + + + + + + f f + + + + # + + + f + + + # + + + + # + } f # + + # # + + f + + + +
+ + + } # + # # # + + + + + + + + + f + f + + + + . + # + f + + + + + + + f + f f + # # t } + f # + + + + + + + + + + + f + # # . } + + + + + # + + t + + + f + # + + # + + # # +
+ + + + + ^ . . + + + + # + + + # # + + # # + + - - + + + + + + + + + + + + + # + + + + + + + # + + + # + + + # # + # + 1 . . + r + + + # + + + + + + + + + # + + + + + + + + + + + + + +
+ + + 1 + + + + + + i # + + # + } + + + + + + + + + # + + + + + } + + + + + + h + # # + + # a # + + + + + + + + . + + } # + + # + + # # + + + + } + + + + # + + + + # + + + a + + + +
} # + + + + # + + # # i # # + } + + + + + F # + # # + 4 i + + # + + + # + + # + + + # # } + + i + # + + + + # + # + + + } # + + } + # a + + + + # k # + + + + + # +[:+ } # + + + + + + # +
+ # + fi + + + + t + + + + + + # + # # # # + + + - + t + # # + + + + + + + } + # # + + . + # + + # # + # +_ # + + + # # # # k} # # # # + } # + + # + + } + + + + # + #+#k+#+##+
+++ +++`+++## #+ +}i+ #++ ++ +# + e + +# +} + i # ++}+++ + k+#++++ + # +} ++ i++ } + k t + + +# # +++ # + # ++#+ + }# + + }#}4 ++ + 4+y+ +++y++i+++#+++++++
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+ + 4 } } +h # t + + } # f + # } f + # + + # # + + h t + + + # f + } } + + f + + # } + + f + } # f + + + + } f + # } } } + } + } # + # f + + ♦ + + f } + } # } + + + } + # + f + # + + # f + }
+ + # + + + + } + + f + / + } + # f +• } + + + + + + } # } f + + { + + + f + } # } + + + + h } + f + # + { + } f 4 + + } + + + + # } } + i• + + + a + + + + + + + + + + + + } i + + + + + + # # + + + + .
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+ } + + } + } + + + + # + + + + + } + } + # # + } + h + + } + + + } + + . + + + + + # + + � + + + + + + + + + } } + + # + + -h } + + # } + + # + + + + + + # + # + t + # + + + + + + + + + +
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+T+•+'}T+T+'F•+T+•++++'},#•+•+T+•+•+T+++•#;#•#T}T+AFT+•+�+T+'+T+,+,•+••+•+•+T+T+T#; +r+T}�+• •+ . #++•+•f•},+••+•+ +T# +T+T+•#r+,•+,•+•}•}+++T++t•#T+,+•+�+T+�}�}•+T+T+'+T+•+•#• ++�+++++•+T#,}T+T+�+T}T}-
+ + + + # + # + + + + + + + + # + + # + + + # + + + + + + + . + + + + # + + + + + + + # + + + + + + + + # + + + # + + .} + + + + + i.' + + + + + + # + # + �h + + + + + + + + + + + +
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+ + + + + +F + + + + + + + ; . + + + } + + + + + + + + + + + -. + + + + # + + + + + h + + # + + + + + + + + # + # + + + + + + + + + + it + + + + + # + + + + + + + + ..... + + + # + +
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+ + + + + + + + { + + + + + + + + # + f # + + + + + + + a + + + + + + f + # + # + + f # } } + + i # + f + +
4.
. + + + +
HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
3000
ISSUE DATE DESCRIPTION
3200
3400
3600
SECTION B
SCALE: HORIZ 1 "=40' -
VERT 1"=10'
PROJECT MANAGER V. CARBONE
DRAWN BY:
-
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
PROJECT NUMBER
000000000266802
4000
DISTANCE (ft)
NOT FOR
CONSTRUCTION
B'
EAST
750
MW-13
-� CAT.4WBA RIVER 650
v7MOUNTAIN ISLAND LAKE
X
4200
4400
4600 4800
DUKE ENERGY CAROLINAS,LLC
if DUKE
+; ENERGY
GASTON COUNTY
RIVERBEND STEAM STATION
6*4
1. CONCEPTUAL DRAWING FOR DEMONSTRATION
PURPOSES ONLY.
2. BEDROCK FRACTURES DEPICTED ON SECTION
DO NOT REPRESENT ACTUAL FRACTURE
FREQUENCY OR ORIENTATION.
X X
LEGEND:
WATER TABLE SURFACE (JUNE 2015)
FILL
ASH
REGOLITH
BEDROCK (FRACTURED)
LEACHATE
GROUNDWATER FLOW PATH
SITE CONCEPTUAL MODEL CROSS SECTIONAL
p 2' FILENAME I FIGURE 3-2.2.DWG
SCALE I AS NOTED
SHEET
FIGURE 3-2
C