16.4  Source water quantity

The quantity of water for users is also an important part of a sanitary survey. An adequate quantity of source water should be available to meet the community’s needs. The quantity must be sufficient to meet the anticipated demand of the community. The location of source water supply facilities is also an important factor in determining the ability of the water system to meet the community’s needs at all times. The source should be within 1 km or a 30-minute round trip.

  • What is the recommended minimum volume of water needed per person per day?

  • The minimum volume is 20 litres per person per day.

16.3  Vulnerability assessment at a water source

16.5  Sanitary survey of wells