NC0004961_2. RBSS_Tables_Final_20160212

Tables

Note some tables are presented in the text of this
CAP Part 2 Report.

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Corrective Action Plan Part 2
Riverbend Steam Station Ash Basin

Table 2-1 Summary of Horizontal Hydraulic Gradient Calculations (Round 2)
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 NM 647.13 1936’ NA
AB-4S / MW - 11SR 704.28 Dry 1584’ NA
AB-3S / GWA- 9S 704.78 645.11 1364’ 0.043
MW -7SR / BG- 3S NA 642.13 2596’ NA
Average Horizontal Hydraulic Gradient 0.043
Transition Zone (D wells)
MW -8D / MW - 9D NM 644.36 1936’ NA
AB-4D / MW - 11DR 701.2 662.8 1584’ 0.024
AB-3D / GWA - 9D 699.67 643.06 1364’ 0.042
MW -7D / BG-3D 712.4 639.73 2596’ 0.028
Average Horizontal Hydraulic Gradient 0.031
Fractured Bedrock (BR wells)
GWA-23BR / MW-
9BR 696.56 645.21 1936’ 0.027
GWA -23BR / AB-3BR 696.56 683.75 3300’ 0.004
GWA-2BR / GWA-
9BR 639.01 538.78 3168’ 0.032
Average Horizontal Hydraulic Gradient 0.021
NM = Not Measured NA = Not Available Depth to Water measurements collected on 9/15/15

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Page 1 of 11
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G
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d
w
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 3 of 11
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2

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Page 4 of 11
Ta
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G
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 5 of 11
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G
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d
w
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r
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
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Ta
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Ta
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2
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Page 9 of 11
Ta
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2

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-

G
r
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u
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d
w
a
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r
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
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Sample Location
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9
B
R
Page 10 of 11
Ta
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2
-
2

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-

G
r
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d
w
a
t
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r
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
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Page 11 of 11
Ta
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2
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a
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
AB
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A B-
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µ
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0
.
0
5
6

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0
.
0
5
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J

0
.
1

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1
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.
3
6

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0
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1
9

Th
a
l
l
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m

7
4
4
0
-
2
8
-
0

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-
0.
2
IM
A
C

µ
g
/
L

0
.
0
7
5

J
0.
2
3

J
+
0.
1
9

0.
7
2

0
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4
8

-0.65
Va
n
a
d
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u
m

7
4
4
0
-
6
2
-
2

D

-

-

µ
g
/
L

6

0
.
5
5

J

1

U

9
2
.
1

2
0
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2
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5

Va
n
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d
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7
4
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0
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6
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-
0.
3
IM
A
C

µ
g
/
L
11
.
3

3
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.
5

J
+

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6
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n
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7
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4
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6
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D

-

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L

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0

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3
1

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7
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6
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0
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µ
g
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L

8
.
9

J
+

3
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J
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1
0

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8
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.
8

J
+

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4

To
t
a
l

D
i
s
s
o
l
v
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d

S
o
l
i
d
s

T
D
S

N

-
50
0
0
0
0
02
L

µ
g
/
L

1
7
4
0
0
0

1
4
3
0
0
0

2
3
4
0
0
0

2
0
2
0
0
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3
8
1
0
0
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-

3
3
9
0
0
0

To
t
a
l

O
r
g
a
n
i
c

C
a
r
b
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n

T
O
C

N

-

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µ
g
/
L

7
8
0

J

1
0
0
0

U

7
4
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J

1
0
0
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7
1
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7
2
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J
To
t
a
l

S
u
s
p
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n
d
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d

S
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l
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d
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T
S
S

N

-

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µ
g
/
L

3
5
0
0
0

1
8
6
0
0
0

7
7
0
0

1
5
1
0
0
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1
8
0
0
0
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-

4
6
5
0
0
0

Al
k
a
l
i
n
i
t
y
,

C
O
3

A
L
K
-
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O
3

N

-

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µ
g
/
L

5
0
0
0

U

5
0
0
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5
0
0
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Al
k
a
l
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n
i
t
y
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H
C
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L
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C
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3

N

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µ
g
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L

5
2
6
0
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5
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6
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8
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1
4
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Al
k
a
l
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t
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l
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b

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N

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µ
g
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L

5
2
6
0
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6
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Ch
l
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1
6
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8
7
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2
5
0
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0
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µ
g
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L

7
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6
3
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6
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4
4
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1
1
5
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8
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Ni
t
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n
,

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O
2

p
l
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3

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2
-
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3

N

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µ
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1
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l
f
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25
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µ
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L

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8
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l
f
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1
8
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µ
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L

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As
(
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I
I
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7
7
8
4
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4
6
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µ
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2
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0

--
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44.9 -
As
(
V
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µ
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9

--
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m
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(
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0
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0
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H
H
S

µ
g
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L

0
.
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5

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--
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0.026 -
Fe
(
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I
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5
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6
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(
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1
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4
4
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µ
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9
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1

--
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47.7 -
Lo
c
a
t
i
o
n
:
Ev
e
n
t
:
Sa
m
p
l
e

D
a
t
e
:
Sa
m
p
l
e

T
y
p
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C
o
d
e
:
Sa
m
p
l
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N
a
m
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/
I
D
:
Page 1 of 4
Ta
b
l
e

2
-
3

A
s
h

P
o
r
e
w
a
t
e
r

A
n
a
l
y
t
i
c
a
l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
AB
-
3
S
A B-
3
S
A B-
4
S
A B-
4
S
A B-5S

A
B
-
5
S
A B-5S
Ro
u
n
d

1

R
o
u
n
d

2

R
o
u
n
d

1

R
o
u
n
d

2

R
o
u
n
d

1

R
o
u
n
d

1

R
o
u
n
d

2
7/
2
/
2
0
1
5

9
/
1
7
/
2
0
1
5

6
/
2
8
/
2
0
1
5

9
/
1
7
/
2
0
1
5

6
/
2
0
/
2
0
1
5

6
/
2
5
/
2
0
1
5

9
/
1
5
/
2
0
1
5
NN
N
N
N
N
N
AB
-
3
S

R
V
-
A
B
-
3
S
-
N
S
-
3
Q
1
5
A B-
4
S

R
V
-
A
B
-
4
S
-
N
S
-
3
Q
1
5
A B-5S

A
B
-
5
S

R
V
-
A
B
-
5
S
-
N
S
-
3
Q
1
5
Co
n
s
t
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t
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t

C
A
S

R
N

F
r
a
c
t
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n
Cr
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t
e
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a

M
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n

(r
a
n
g
e

o
n
l
y
)
NC
D
E
Q

0
2
L

GW
Q
S
,

IM
A
C
s
,

D
H
H
S
Cr
i
t
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r
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a

So
u
r
c
e

U
n
i
t
Lo
c
a
t
i
o
n
:
Ev
e
n
t
:
Sa
m
p
l
e

D
a
t
e
:
Sa
m
p
l
e

T
y
p
e

C
o
d
e
:
Sa
m
p
l
e

N
a
m
e
/
I
D
:
Mn
(
I
V
)

1
3
1
3
-
1
3
-
9

T

-

-

µ
g
/
L

1

U
--
-
-
1

U
-
Se
(
I
V
)

1
0
1
0
2
-
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8
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8

T

-

-

µ
g
/
L

0
.
5

U
--
-
-
0.84 -
Se
(
V
I
)

1
3
4
1
0
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0
1
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0

T

-

-

µ
g
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L

0
.
5

U
--
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0.254 -
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s
s
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l
v
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d

O
x
y
g
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D
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N

-

-

m
g
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L

0
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2

0
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2

0
.
2
9

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.
9

0
.
4
1

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0
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3

Te
m
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r
a
t
u
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N

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C

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4

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8
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4

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2
7
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2

2
3
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3

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9

pH

P
H

N

6
.
5
8.
5
02
L

S
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6
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8

6
.
8

9.
8

6.
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0
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8
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3

Tu
r
b
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d
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t
y
,

f
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l
d

T
U
R
B

N

-

-

N
T
U

1
0
5
.
6

1
0
5
.
1

6
.
5
2

2
7
.
5
3

3
.
3
4

-

2
6
.
3

Sp
e
c
i
f
i
c

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

(
f
i
e
l
d
)

S
C

N

-

-

µ
S
/
c
m

2
5
3
.
8

2
1
9
.
9

5
3
4

3
4
6
.
8

5
9
7

-

5
3
2

Ox
i
d
a
t
i
o
n

R
e
d
u
c
t
i
o
n

P
o
t
e
n
t
i
a
l

O
R
P

N

-

-

m
V

-
6
2
.
4

-
1
0
6
.
5

-
1
1
2
.
6

2
3
.
5

2
6
.
2

-

3
.
1

GW

D
e
p
t
h

(
T
O
C
)

G
W
_
D
E
P
T
H
-
T
O
C

N

-

-

f
t
--
-
-
-
-
20.76
No
t
e
s
:
µm

=

m
i
c
r
o
n
µg
/
L

=

m
i
c
r
o
g
r
a
m
s

p
e
r

l
i
t
e
r
µS
/
c
m

=

m
i
c
r
o
s
i
e
m
e
n
s

p
e
r

c
e
n
t
i
m
e
t
e
r
ft

=

f
e
e
t
mg
/
L

=

m
i
l
l
i
g
r
a
m
s

p
e
r

l
i
t
e
r
mV

=

m
i
l
l
i
v
o
l
t
s
NT
U

-

n
e
p
h
e
l
o
m
e
t
r
i
c

t
u
r
b
i
d
i
t
y

u
n
i
t
s
pC
i
/
L

=

p
i
c
o
c
u
r
i
e
s

p
e
r

l
i
t
e
r

SU

=

s
t
a
n
d
a
r
d

u
n
i
t
J
=

l
a
b
o
r
a
t
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y

e
s
t
i
m
a
t
e
d

c
o
n
c
e
n
t
r
a
t
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o
n
J-

=

e
s
t
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m
a
t
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d

c
o
n
c
e
n
t
r
a
t
i
o
n
,

b
i
a
s
e
d

l
o
w
J+

=

e
s
t
i
m
a
t
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d

c
o
n
c
e
n
t
r
a
t
i
o
n
,

b
i
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s
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d

h
i
g
h
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=

r
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s
u
l
t
s

n
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t

d
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c
t
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d

a
t

c
o
n
c
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n
t
r
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t
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s

w
h
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c
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e
q
u
a
l

t
h
e

l
a
b
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r
a
t
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r
y
'
s

m
e
t
h
o
d

r
e
p
o
r
t
i
n
g

l
i
m
i
t
02
L

=

N
o
r
t
h

C
a
r
o
l
i
n
a

g
r
o
u
n
d
w
a
t
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r

s
t
a
n
d
a
r
d
s

a
s

s
p
e
c
i
f
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d

i
n

T
1
5
A

N
C
A
C

0
2
L

D
=

d
i
s
s
o
l
v
e
d
De
g

C

=

d
e
g
r
e
e

C
e
l
s
i
u
s
DH
H
S

=

N
o
r
t
h

C
a
r
o
l
i
n
a

D
e
p
a
r
t
m
e
n
t

o
f

H
e
a
l
t
h

a
n
d

H
u
m
a
n

S
e
r
v
i
c
e
s
DO

=

d
i
s
s
o
l
v
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d

o
x
y
g
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n
GW

=

g
r
o
u
n
d
w
a
t
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r
GW
Q
S

=

g
r
o
u
n
d
w
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t
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r

q
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a
l
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t
y

s
t
a
n
d
a
r
d
IM
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C

=

I
n
t
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r
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m

M
a
x
i
m
u
m

A
l
l
o
w

C
o
n
c
e
n
t
r
a
t
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o
n
N
=

n
o
r
m
a
l

NS

=

n
o

s
t
a
n
d
a
r
d
T
=

t
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a
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TD
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=

t
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d
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s
s
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s
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l
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TO
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t
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a
l

o
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a
n
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c

c
a
r
b
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n
02
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=

N
o
r
t
h

C
a
r
o
l
i
n
a

s
u
r
f
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w
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t
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d
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s
p
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c
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f
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n

T
1
5

N
C
A
C

0
2
B

.
0
2
1
1

a
n
d

.
0
2
1
6

(
a
m
e
n
d
e
d

e
f
f
e
c
t
i
v
e

J
a
n
u
a
r
y

2
0
1
5
)
Page 2 of 4
Ta
b
l
e

2
-
3

A
s
h

P
o
r
e
w
a
t
e
r

A
n
a
l
y
t
i
c
a
l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
n
s
t
i
t
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Ta
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R
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3
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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7
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6

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7
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L
56
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5

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4

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4
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10
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9

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4

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7
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6
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50
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14
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4

3
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3

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5

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4
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4

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6

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7
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4
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25
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9
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1

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7
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8

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7
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7
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4

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8

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7
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6

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2
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5

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7
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7
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C
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I
D
:
Page 1 of 2
Ta
b
l
e

2
-
4

A
s
h

B
a
s
i
n

W
a
t
e
r

S
a
m
p
l
e

A
n
al
y
t
i
c
a
l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

3
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
SW
-
1

S
W
-
1

S
W
-
1

S
W
-
2

S
W
-
2

S
W
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2
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1

R
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d

1

R
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3

R
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1

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2
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2
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1
5

1
1
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1
7
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2
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1
5

6
/
8
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2
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1
5

6
/
2
5
/
2
0
1
5

1
1
/
1
7
/
2
0
1
5
NN
N
N
N
N
SW
-
1

S
W
-
1

R
V
-
S
W
-
1
-
N
S
-
4
Q
1
5
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1

S
W
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2

S
W
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2

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V
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S
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2
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4
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t

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A
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N

F
r
a
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t
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Cr
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M
i
n

(r
a
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)
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B

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n
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c
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Page 2 of 2
Ta
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2
-
5

G
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R
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W
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B
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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1
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Page 1 of 16
Ta
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2
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5

G
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B
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
A B-
1
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Page 2 of 16
Ta
b
l
e

2
-
5

G
r
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u
n
d
w
a
t
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R
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s
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t
s

w
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t
h
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n

W
a
s
t
e

B
o
u
n
d
a
r
y
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
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Page 3 of 16
Ta
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B
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Page 4 of 16
Ta
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Ta
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Page 7 of 16
Ta
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Ta
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Page 15 of 16
Ta
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2
-
5

G
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w
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R
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w
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W
a
s
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B
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n
d
a
r
y
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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C
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Page 16 of 16
Ta
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2
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6

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R
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1
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2
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3
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a
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4
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
BG
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1
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Ta
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Page 2 of 10
Ta
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2
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6

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Ta
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Page 4 of 10
Ta
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2
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-

R
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d
s

1
,

2
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3
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a
n
d

4
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Ta
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Page 6 of 10
Ta
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2
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6

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R
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1
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2
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4
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Ta
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Page 9 of 10
Ta
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2
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6

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1
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2
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Page 10 of 10
Ta
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2
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Page 1 of 30
Ta
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2
-
7

G
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O
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R
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–

R
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1

a
n
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R
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
GW
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Page 2 of 30
Ta
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2
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7

G
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R
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Page 3 of 30
Ta
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2
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7

G
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R
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1

a
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R
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Page 4 of 30
Ta
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2
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7

G
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t
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–

R
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n
d

1

a
n
d

R
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d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Ta
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2
-
7

G
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–

R
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1

a
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R
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 6 of 30
Ta
b
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2
-
7

G
r
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u
n
d
w
a
t
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r

O
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t
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B
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n
d
a
r
y

A
n
a
l
y
t
i
c
a
l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Ta
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2
-
7

G
r
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w
a
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r

O
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t
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W
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d
a
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A
n
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R
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s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 8 of 30
Ta
b
l
e

2
-
7

G
r
o
u
n
d
w
a
t
e
r

O
u
t
s
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d
e

t
h
e

W
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s
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B
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n
d
a
r
y

A
n
a
l
y
t
i
c
a
l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
n
s
t
i
t
u
e
n
t

C
A
S

R
N

F
r
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Page 9 of 30
Ta
b
l
e

2
-
7

G
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O
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R
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s

–

R
o
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n
d

1

a
n
d

R
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d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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N

N
N
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Ta
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Page 11 of 30
Ta
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2
-
7

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R
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Page 12 of 30
Ta
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Page 13 of 30
Ta
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2
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7

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-----Page 14 of 30
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Page 15 of 30
Ta
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2
-
7

G
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R
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1

a
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R
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Page 16 of 30
Ta
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Page 17 of 30
Ta
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7

G
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R
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1

a
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R
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 19 of 30
Ta
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2
-
7

G
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A
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R
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–

R
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d

1

a
n
d

R
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 20 of 30
Ta
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2
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7

G
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1

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R
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Page 21 of 30
Ta
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2
-
7

G
r
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u
n
d
w
a
t
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r

O
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t
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A
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R
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s
u
l
t
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–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 22 of 30
Ta
b
l
e

2
-
7

G
r
o
u
n
d
w
a
t
e
r

O
u
t
s
i
d
e

t
h
e

W
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d
a
r
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A
n
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l
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c
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l

R
e
s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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t
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n
t

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Page 23 of 30
Ta
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2
-
7

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22.16 Page 24 of 30
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Page 25 of 30
Ta
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2
-
7

G
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R
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Page 26 of 30
Ta
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29.6 Page 27 of 30
Ta
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2
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7

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5.98 -Page 28 of 30
Ta
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2
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Page 29 of 30
Ta
b
l
e

2
-
7

G
r
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u
n
d
w
a
t
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r

O
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t
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W
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d
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A
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i
c
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R
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s
u
l
t
s

–

R
o
u
n
d

1

a
n
d

R
o
u
n
d

2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Co
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F
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(r
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Page 30 of 30
Ta
b
l
e

2
-
8

C
o
n
s
t
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t
u
e
n
t
s

o
f

I
n
t
e
r
e
s
t

E
v
a
l
u
a
t
i
o
n
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Ma
t
r
i
x

L
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c
a
t
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L
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Page 1 of 20
Ta
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2
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D
Page 2 of 20
Ta
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2
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8

C
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E
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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2

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8

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5
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5
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0
9

I
N

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WG

A
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3

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N

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WG

A
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9
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WG

D
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A
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B
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6
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7
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WG

D
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w
n
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Page 3 of 20
Ta
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2
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Page 4 of 20
Ta
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2
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Ta
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2
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Page 6 of 20
Ta
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2
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8

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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 7 of 20
Ta
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8

C
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 8 of 20
Ta
b
l
e

2
-
8

C
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s
t
i
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n
t
s

o
f

I
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t
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r
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s
t

E
v
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l
u
a
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i
o
n
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Ma
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553
50

5
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1
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Page 9 of 20
Ta
b
l
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2
-
8

C
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s

o
f

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E
v
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n
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
Ma
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Page 10 of 20
Ta
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2
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8

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E
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M
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Co
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Manganese Page 11 of 20
Ta
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2
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8

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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Re
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970
41
3

4
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7
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NS

N
S

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NS

3
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N
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50µg/l
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l
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N DT
T
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74
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Page 12 of 20
Ta
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2
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8

C
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E
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 13 of 20
Ta
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2
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Page 14 of 20
Ta
b
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e

2
-
8

C
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f

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E
v
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 15 of 20
Ta
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2
-
8

C
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s

o
f

I
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E
v
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n
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Ta
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Page 17 of 20
Ta
b
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2
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8

C
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E
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 18 of 20
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Page 19 of 20
Ta
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2
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Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 20 of 20
Ta
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S
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:
Page 1 of 2
Ta
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2
-
9

S
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–

R
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a
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R
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2
Corrective Action Plan Part 2 Riverbend Steam Station Ash Basin
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Page 2 of 2
Table 9-1 Interim Monitoring Plan Sample Locations
Corrective Action Plan Part 2
Dan River Steam Station Ash Basin
Well ID / Sampling Location Well Type
Well Screen
Length
(ft)
Approximate Well
Total Depth
(ft. bgs)
Top of screen
(ft. bgs)
Bottom of screen
(ft. bgs)
AB-5S CSA 15 23 7 22
AB-5D CSA 5 45 34 39
AB-10D CSA 5 83 77 82
AB-10S CSA 15 30.5 15 30
AB-10SL CSA 5 50 43 48
AB-25BR CSA 5 149 144 149
AB-25D CSA 5 94 82 87
AB-25S CSA 15 53.5 30 45
AB-30BR CSA 5 115 109 114
AB-30D CSA 5 63 54 59
AB-30S CSA 15 31 15 30
AB-35BR CSA 5 95 81 86
AS-2D CSA 5 66 53 58
AS-4D CSA 5 42 35 40
AS-6D CSA 5 62 56 61
AS-8BR CSA 5 111 64 69
AS-8D CSA 4 61 48 52
AS-10D CSA 5 83 38 43
AS-12S CSA 10 28.9 13.9 23.9
BG-1D Background/CSA 5 22 9 14
BG-5D Background/CSA 5 39.6 28 33
BG-5S Background/CSA 10 23 10.5 20.5
GWA-1D CSA 5 120 114 119
GWA-1S CSA 15 47 30 45
GWA-2D CSA 5 69 56 61
GWA-2S CSA 15 31.5 16 31
GWA-3D CSA 5 41.6 34 39
GWA-3S CSA 10 29 13.8 23.8
GWA-4D CSA 5 56 43 48
GWA-4S CSA 15 37 20 35
GWA-5BR CSA 5 63.3 55 60
GWA-6D CSA 5 43.6 29 34
GWA-6S CSA 10 20 9 19
GWA-7D CSA 5 56 46 51
GWA-7S CSA 15 37.5 14 29
GWA-8D CSA 5 45 35 40
GWA-8S CSA 15 23 6 21
GWA-9D Background - CSA 5 74 67 72
GWA-9S Background - CSA 15 49 32 47
GWA-10D CSA 5 45 33 38
GWA-10S CSA 15 28 13 28
GWA-11D CSA 5 41.7 29.5 34.5
GWA-11S CSA 15 26 10 25
GWA-12S CSA/Background 10 16 6 16
GWA-12D CSA/Background 5 32 27 32
GWA-14D CSA 5 24 11.5 16.5
GWA-14S CSA 5 9 3 8
GWA-15D CSA 5 34.05 26 31
GWA-15S CSA 5 13.5 7.5 12.5
MW-9 Voluntary 10 22.6 11.94 21.94
MW-9D Voluntary 5 72 66.05 71.05
MW-10 Voluntary 10 21 10.8 20.8
MW-10D Voluntary 5 73 67.55 72.55
MW-11 Voluntary 10 24 14.39 24.39
MW-11D Voluntary 5 56 50.82 55.82
MW-12 Voluntary 10 37 27.12 37.12
MW-12D Voluntary 5 45 39.97 44.97
MW-20D Compliance 5 44.2 39.2 44.2
MW-20S Compliance 15 22.11 7.11 22.11
MW-21D Compliance 5 21 16.4 21.4
MW-21S Compliance 5 12 6.56 11.56
MW-22D Compliance 5 39.11 34.11 39.11
MW-22S Compliance 10 24.86 14.86 24.86
MW-22BR CSA 5 84.9 58 63
MW-23D Background/Compliance 10 20.11 10.11 20.11
MW-23BR Background/CSA 5 61 56 61
MW-301BR CSA 5 82.5 37 42
MW-308BR CSA 5 88 77 82
MW-310BR CSA 5 88 73 78
MW-311BR CSA 5 133.5 120 125
MW-314BR CSA 5 99.1 69 74
MW-315BR CSA 15 104.3 59.7 74.7
MW-317BR CSA 5 109.8 83 88
MW-318D CSA 5 50 44.5 49.5
OW-303D Closure 5 88 83 88
OW-308D Closure 10 15 5 15
OW-310D Closure 5 24 19 24
GROUNDWATER
Page 1 of 2
Table 9-1 Interim Monitoring Plan Sample Locations
Corrective Action Plan Part 2
Dan River Steam Station Ash Basin
Well ID / Sampling Location Well Type
Well Screen
Length
(ft)
Approximate Well
Total Depth
(ft. bgs)
Top of screen
(ft. bgs)
Bottom of screen
(ft. bgs)
SW-1 SW NA NA NA NA
SW-2 SW NA NA NA NA
SW-3 SW NA NA NA NA
SW-4 SW NA NA NA NA
SW-5 SW NA NA NA NA
SW-6 SW NA NA NA NA
SW-7 SW NA NA NA NA
SW-8 SW NA NA NA NA
SW-9 SW NA NA NA NA
SW-10 SW NA NA NA NA
SW-11 SW NA NA NA NA
SW-12 SW NA NA NA NA
SW-13 SW NA NA NA NA
S-1 SP NA NA NA NA
S-2 SP NA NA NA NA
S-3 SP NA NA NA NA
S-4 SP NA NA NA NA
S-6 SP NA NA NA NA
AREAS OF WETNESS
SURFACE WATER
Page 2 of 2
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