D­
50
Appendix
D­
9.
Data
for
the
American
River,
CA,
for
July
1978
Through
December
1980
(
data
from
the
City
of
Sacramento,
CA,
Water
Quality
Laboratory;
personal
communication).
Units
Are
mg/
L.

Date
pH
Hardness
Alkalinity
Ca
Mg
Ca:
Mg
Na
Cl
SO4
Jul­
78
7.6
20
22
5.2
1.7
3.06
3.2
2.6
4
Aug­
78
7.6
20
22
4.9
1.9
2.58
3.4
2.8
5
Sep­
78
7.5
20
22
5.2
1.7
3.06
3.5
2.6
4
Oct­
78
7.3
20
22
5
1.8
2.78
3.6
3
4
Nov­
78
7.2
20
4.9
1.9
2.58
3.9
5
Dec­
78
Jan­
79
7.4
23
24
5.1
2.1
2.43
3.2
2.9
4
Feb­
79
7.5
24
25
6.5
1.9
3.42
3
3
5
Mar­
79
7.6
26
27
7.4
1.8
4.11
3.3
2.7
6
Apr­
79
7.7
27
27
7.5
2
3.75
3.6
2.7
7
May­
79
7.6
25
26
5.7
2.6
2.19
3.4
2.4
6
Jun­
79
7.7
22
24
5.7
1.9
3.00
3.1
2.5
4
Jul­
79
7.6
21
22
5.3
1.9
2.79
3
2.7
4
Aug­
79
7.5
21
22
5.6
1.7
3.29
3.2
2.4
5
Sep­
79
7.3
20
21
5.7
1.4
4.07
3.5
2.5
3
Oct­
79
7.2
19
20
5.5
1.3
4.23
3.1
2.8
3
Nov­
79
Dec­
79
Jan­
80
7.5
23
23
6.1
1.9
3.21
2.4
2.6
4
Feb­
80
7.4
23
23
6.1
1.9
3.21
2.7
2.3
2
Mar­
80
7.5
24
26
5.8
2.3
2.52
2
2.3
2
Apr­
80
7.7
25
25
6.4
2.2
2.91
1.9
2.5
3
May­
80
7.5
22
21
6.1
1.6
3.81
2.4
2.4
3
Jun­
80
7.3
19
21
5.1
1.5
3.40
2.3
2.4
2
Jul­
80
7.4
18
20
4.6
1.6
2.88
2.6
2.1
3
Aug­
80
7.5
18
21
5.2
1.2
4.33
3
2.7
2
Sep­
80
7.3
18
20
4.9
1.4
3.50
2.9
2.4
4
Oct­
80
7.3
18
20
5
1.3
3.85
3
2.7
2
Mean
7.5
21.4
22.8
5.6
1.8
3.2
3.0
2.6
3.8
max
7.7
27.0
27.0
7.5
2.6
4.3
3.9
3.0
7.0
min
7.2
18.0
20.0
4.6
1.2
2.2
1.9
2.1
2.0
