Effluent Concentration Limits
(twenty-four-hour average)
| ||
---|---|---|
Substance
|
Milligrams
(per liter)
| |
Cadmium
|
0.4
| |
Hex. chromium
|
0.2
| |
Total chromium
|
4.0
| |
Copper
|
0.8
| |
Lead
|
0.2
| |
Mercury
|
0.2
| |
Nickel
|
4.0
| |
Zinc
|
1.2
| |
Arsenic
|
0.2
| |
Available chloride
|
50.0
| |
Cyanide-free
|
0.4
| |
Cyanide-complex
|
1.6
| |
Selenium
|
0.2
| |
Sulfide
|
6.0
| |
Barium
|
4.0
| |
Manganese
|
4.0
| |
Gold
|
0.2
| |
Silver
|
0.2
| |
Fluorides
| ||
To fresh water
|
4.0*
| |
To saline water
|
36.0
| |
Phenol
|
4.0
|
*
|
NOTE: May be multiplied by a factor of 1.5 if the municipal
water supply is not fluoridated.
|