NC0038377_Figure 3-1 through 3-4_20150902

r Y �
J y F
E
R
An
!,,-��
Fw xsxaza9 ac cono 4 m cm ft) -
Figure 5: Known sample of ash for comparison.
Figure 3-1: Known sample of ash for comparison. (Source: Duke Energy 2014)
Range (10`" percentile — 901" percentile) in bulk composition of fly ash, bottom ash, rock, and soil. (Source: EPRI 2009a)

100%
90%
p 80%
p 70%
a
0 60%
U
cv 50%
0
,~40%
6
c 30%
20%
10%
0%
Volcanic Ash Shale Fly Ash Bottom Ash
■Si ■AI Fe Ca ■Other Major Elements ■Minor Elements ■Trace Elements
Figure 3-2: Elemental composition for bottom ash, fly ash, shale, and volcanic ash. (Source: EPRI 2009a)

C
J_
E 10
v
O 1
0.1
v
= 0.01
O
V
a 0.001
J
U
H
0.0001
0.00001 '
As Ba
Me>orfwjM
9oRh Percentile TCLP Regulatory Lunt
loth Peroentiie
Mirwnnxn
Cd Cr Pb
Element
Hg Se Ag
Figure 3-3: Coal ash TCLP leachate concentration ranges compared to regulatory limits. (Source: EPRI 2010)

100000
10000
a7 1000
tM
E l00 •
•
v
10
loop
0.1
0.01
0.001
As Ba Cd Cr Pb Hg Se Ag Sb Be B Co Cu Mn Ni TI V Zn
EPA Residential Soil Screening Level Element
*Concentrations less than
Fly Ash Range (1021 and 90m percentile) method detection limits.
Figure 3-4: Trace element concentration ranges in fly ash compared to EPA residential soil screening levels. (Source: EPRI 2009b)
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100000
10000
Y
1000
CM
E
100
r.
Q
10
cc
L
V
0
0.1
0.01
IIII%III
�
I
•
•
1•
••
I
I
I
I
As Ba Cd Cr Pb Ng Se Ag Sb Be B Cu Mn Ni TI V Zn
S EPA Residential Soil Screening Level Element
*Concentrations less than
Bottom Ash Range (1014 and 90 percentile) method detection limits.
Trace element concentration ranges in bottom ash compared to EPA residential soil screening levels. (Source: EPRI 2009b)
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