CHEMICAL COMPOSITION OF WATER FROM
ASARCO TAILINGS PONDS
1971 and 1981
Constituent |
(mg/l) |
Pond No. |
1 |
Pond No. |
2 |
|||
Calcium |
530 |
552 |
615 |
760 |
||||
Magnesium |
<1 |
5 |
2 |
1 |
||||
Sodium |
190 |
163 |
166 |
240 |
||||
Potassium |
49 |
70 |
- |
72 |
||||
Carbonate |
35 |
0 |
0 |
0 |
||||
Bicarb. |
0 |
39 |
41 |
18 |
||||
Chloride |
43 |
26 |
38 |
32 |
||||
Sulfate |
1,600 |
1,558 |
1,745 |
2,400 |
||||
Nitrate . |
2 |
2 |
<:1 |
2 |
||||
Flouride |
2.0 |
3.7 |
0.6 |
2.3 |
||||
Iron |
<0.08 |
0.05 |
||||||
Manganese |
<0.04 |
- |
- |
0.08 |
||||
Arsenic |
<0.005 |
- |
- |
<0.01 |
||||
Chromium |
<.04 |
- |
- |
<0.01 |
||||
Selenium |
0.013 |
- |
<0.01 |
|||||
Molybdenum |
1.9 |
5.5 |
16 |
2.0 |
||||
Lead |
- |
- |
- |
<0.01 |
||||
Copper |
- |
- |
- |
0.01 |
||||
Zinc |
- |
- |
- |
0.14 |
||||
Cadmium |
- |
- |
- |
<0.01 |
||||
Boron |
- |
0.4 |
- |
0.13 |
||||
Vanadium |
- |
- |
- |
<0.1 |
||||
Electrical Conductivity |
||||||||
(micromhos at 250C) |
2,993 |
- |
- |
3,351 |
||||
Total Dissolved Solids |
3,500 |
- |
2,629 |
3,333 |
||||
Total Organic Carbon |
7.8 |
- |
- |
6.7 |
||||
Field pH |
- |
- |
- |
5.5 |
||||
Lab pH |
10.1 |
6.7 |
5.0 |
6.5 |
||||
Date |
5/4/81 |
2/17/71 |
10/18/71 |
8/20/81 |
||||
Lab |
U of A |
ETL |
ETL |
BC Labs |
||||
1971 analyses from Engineers Testing Laboratory, Inc. (1973) and 1981 analyses from Thurnblad (1982).