| Physico-Chemical Characteristics of Raw Water Source at Various Water Works in Delhi - Part V (January - December 2003) | ||||||||
| Raw Water Source | Water Works | Cadmium (mg/l) | Chromium (mg/l) | Copper (mg/l) | Iron (mg/l) | Nickel (mg/l) | Lead (mg/l) | Zinc (mg/l) |
| River Yamuna | ||||||||
| Upper Gang Canal | ||||||||
| Western Yamuna Canal | ||||||||
| Ranny Well | ||||||||
| BIS (1991) limits in mg/l | ||||||||
