Effluent Concentration Limit
(mg/l)
| ||
---|---|---|
Substance
(1)
|
30-Day Average
(2)
|
24-Hour Average
(3)
|
Arsenic
|
0.2
|
0.4
|
Barium
|
4.0
|
8.0
|
Cadmium
|
0.4
|
0.8
|
Chlorine, available
|
50.0
|
50.0
|
Chromium (hex)
|
0.2
|
0.4
|
Chromium (tot)
|
4.0
|
8.0
|
Copper
|
0.8
|
1.6
|
Cyanide (complex)
|
1.6
|
3.2
|
Cyanide (free)
|
0.4
|
0.8
|
Fluorides
|
4.0
|
8.0
|
Gold
|
0.2
|
0.4
|
Lead
|
0.2
|
0.4
|
Manganese
|
4.0
|
8.0
|
Mercury
|
0.2
|
0.4
|
Nickel
|
4.0
|
8.0
|
Phenols, total
|
4.0
|
8.0
|
Selenium
|
0.2
|
0.4
|
Silver
|
0.2
|
0.4
|
Sulfides
|
6.0
|
12.0
|
Zinc
|
1.2
|
2.4
|