140
s
n
o
i
t
a
c
o
r L
o
s f
n
o
i
t
a
r
t
n
e
c
n
o
e C
g
a
r
e
v
0 A
1
0
d 2
n
) a
8
0
0
e 2
c
n
i
i S
; N
6
0
0
e 2
c
n
b Si
, P
s
, A
d
C
s (
n
o
i
t
a
r
t
n
e
c
n
o
y C
B
l
R
r
a
e
n P
e Y
i
h
g
t
i
a
r
e
v
d w
e A
n
t a
ABLE 8.2
v
n
i
e
t
i
a
l
d
u
a
m
r
g
u
p
T
C
U
Cumulative Yearly A
μg/L)
verage (
2010 Data
A-1
TEP
A-2
TEP
A-5
TEP
A-6
TEP
A-1
TEP
A-2
TEP
A-5
TEP
A-6
TEP
Pb (A/B)
10.9
14.8
93.6
90.9
26.9
13.1
29.6
8.8
Pb (C/D)
0.369
0.560
0.892
0.329
0.256
0.832
0.726
0.170
emoved
% Pb r
96.6
96.2
99.0
99.6
99.0
93.6
97.5
98.1
Cd (A/B)
302
461
254
136
384
470
113
17.0
Cd (C/D)
0.039
0.017
0.074
0.028
0.004
0.020
0.246
0.048
emoved
% Cd r
100
100
100
100
100
100
99.8
99.7
Ni (A/B)
213
346
291
409
189
286
233
395
Ni (C/D)
26.5
23.7
9.57
17.3
24.4
4.89
2.25
2.94
emoved
% Ni r
87.6
93.2
96.7
95.8
87.1
98.3
99.0
99.3
As (A/B)
6.33
13.8
139
52.3
7.78
9.59
58.7
30.8
As (C/D)
1.75
7.14
3.81
5.66
1.60
6.19
2.20
2.94
% As removed
72.4
48.1
97.3
89.2
79.5
35.5
96.3
90.5
Note:
A/B denotes average of A
+ B concentrations upgradient of PRB; C/D denotes average of C
+ D concentrations within PRB.
Permeable Reactive Barrier