| Items of Analysis | Sewer | Watercourse |
|---|
| Units in milligram per litre |
| 1 | BOD (5days at 20) | -* | 25 |
| 2 | COD | -* | 50 |
| 3 | Total Suspended Solids | -* | 25 |
| 4 | Cyanide (as CN) | 1 | 0.05 |
| 5 | Arsenic | 2.5 | 0.5 |
| 6 | Phenolic Compounds
(expressed as phenol) | 0.25 | 0.1 |
| 7 | Cadmium** | 0.5 | 0.05 |
| 8 | Chromium** (trivalent and hexavalent) | 2.5 | 0.5 |
| 9 | Copper** | 2.5 | 0.05 |
| 10 | Lead** | 2.5 | 0.05 |
| 11 | Mercury** | 0.25 | 0.025 |
| 12 | Nickel** | 5 | 0.5 |
| 13 | Selenium** | 5 | 0.25 |
| 14 | Silver** | 2.5 | 0.05 |
| 15 | Zinc** | 5 | 0.5 |
| 16 | Metals in total** | 5 | 0.5 |