Objectives and Components of a Water Supply System

UNIT - I

WATER SUPPLY

OBJECTIVES OF A WATER SUPPLY SYSTEM

(i) To supply safe and wholesome* water to consumers.

(ii) To supply water in adequate quantity.

(iii) To make water easily available to consumers, so as to encourage personal and household cleanliness.

(*Wholesome means unpolluted water free from toxic substances, organic matter, minerals and pathogens).

Components of a water supply system

(i) Collection - Surface water and ground water sources.  (Perennial rivers, dams, intake structures).

(ii) Transmission - Conveyance of water from the source to the treatment plants

(Pipelines/Conduits, canals, aqueducts, pumps etc.).

(iii) Purification - To remove physical, chemical and biological impurities from water and make it safe for consumption - Water Treatment plant (filter beds, softening units etc.).

(iv) Distribution - To distribute treated purified water to the consumers under pressure - (Elevated Reservoirs, pipelines, pumps etc.)