Nature of contaminant | Average monthly amount (in kg) | Daily amount (in kg) | Maximum daily amount (in kg) |
Petroleum hydrocarbons (C10-C50) | 1.40 | 2.50 | 3.40 |
Phenols | 0.14 | 0.25 | 0.34 |
Sulfides | 0.05 | 0.14 | 0.23 |
Ammonia nitrogen | 1.63 | 2.60 | 3.27 |
Suspended matter | 4.80 | 5.45 | 6.80 |