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Water-supply system

Case study for students: Meeting demand for drinking water.

The water-supply system has three main parts:

1 2 3

Circle water source
Water source
Surface water (rivers and lakes), groundwater (wells and bores), rainwater

Circle water treatment
Treatment plant

Circle water distribution

Reservoirs, tanks, pipes
Who's responsible Local authorities, Ministry for the Environment Local authorities, Ministry of Health (drinking-water assessors) Local authorities, Department of Building and Housing (building assessors)

Many local authorities directly manage the supply. Others contract operators and maintenance technicians.