D­
36
Appendix
D­
3.
Mean
TOC
and
DOC
in
Lake
Superior
Dilution
Water
(
data
from
Greg
Lien,
U.
S.
EPA­
Duluth,
MN)

Replicate
Ambient
(
8/
29/
2000)
pH
7.0
(
8/
30/
2000)
pH
6.2
(
8/
31/
2000)

Filter
Blank*
­
0.04
0.22
0.38
Pre­
gill
experiment
TOC
a
1.13
1.34
1.26
b
1.37
1.30
1.36
Mean
1.25
1.32
1.31
Post­
gill
experiment
TOC
a
1.20
1.24
1.18
b
1.27
1.46
1.10
Mean
1.24
1.35
1.14
Pre­
gill
experiment
DOC
a
1.96
1.51
1.34
b
1.52
1.28
0.99
Mean
1.74
1.40
1.17
Post­
gill
experiment
DOC
a
1.49
1.36
1.44
b
1.64
1.58
1.24
Mean
1.57
1.47
1.34
*
Filter
blank
is
ultra­
pure
Duluth­
EPA
laboratory
water.
