| Description | Parameter | |
| Population (number of consumers) | 200; 500 and 1000 | |
| Water consumption per person (litres/16hr) | 150 | |
| Chlorine residual (mg/l) | 1.0 | |
| Pipe wall decay coefficient (kw/hr) | 0.05 | |
| Total organic carbon in water (mg/l) | 1.8 | |
| Main type | SDR11 MDPE | |
| Water temperature (˚C) | 5 & 15 | |
| Main length (m) | 2000; 4000; 6000, 8000 and 10,000 | |
| Main diameter (mm) | 125 (Trunk Mains 1 - 30) | 180 (Trunk Mains 31 - 60) |