The Punjab Water Supply & Sewerage Board was set up under the Punjab Act No. 28 of 1976 for the purpose of regulation and development of drinking water supply and sewerage services in the urban areas of the Punjab State. Prior to the formation of pwssb such services were being performed by the Punjab, PWD, Public Health Deptt. The functions of the Board as defined in the Act are as under: –

The Supply of potable water including planning, design, construction, maintenance, operation & management of water supply system.

Sewerage, Sewerage Disposal and sewerage treatment works including planning, design, construction, maintenance, operation & management of all sewerage and sewerage treatment works.