Industrial Waste Limits
General Discharge Components
| ||
---|---|---|
Parameter
|
Discharge Limit
| |
Temperature (degrees Fahrenheit)
|
120° F
| |
pH
|
6.0 to 9.0
| |
BOD5
|
300 mg/1
| |
COD
|
600 mg/1
| |
NH3-N (free) or TKN
|
30 mg/1
| |
Phosphorus (total)
|
10 mg/1
| |
Suspended solids
|
300 mg/1
| |
Total solids
|
2,000 mg/1
| |
Oil and grease
|
50 mg/1
| |
Cyanide
|
0.5 mg/1
| |
Fluoride
|
5.0 mg/1
| |
Iron
|
3.0 mg/1
| |
Manganese
|
3.0 mg/1
| |
Phenolics
|
1.0 mg/1
| |
Sulfide
|
2.0 mg/1
|
Heavy Metals
| ||
---|---|---|
Parameter
|
Discharge Limit
(milligrams per liter)
| |
Arsenic
|
0.05
| |
Barium
|
3.0
| |
Cadmium
|
0.05
| |
Chromium (hexavalent)
|
0.05
| |
Chromium (total)
|
0.5
| |
Copper
|
0.5
| |
Lead
|
3.0
| |
Nickel
|
3.0
| |
Selenium
|
0.1
| |
Silver (as free iron)
|
0.1
| |
Zinc
|
2.4
| |
Maximum total -- heavy metals
|
_____
10.0
|