The drinking water quality is an important part of environment, which has a great impact on the human health. The basis for the drinking water safety assurance is a foundation for the prevention and control of diseases occurring due to poor quality of water. In an internal level WHO has given the guidelines, which involves various national and international authorities as well as international agencies. As the Central Pollution Control Board (CPCB) India classifies the surface water based on its designated best use (Table and). This classification helps determine the suitability of water for various purposes such as drinking, bathing, industrial use, and agriculture. The categories include: