Some degree of assurance that water quality is within acceptable standards for health of those drinking and other water contact. Also, if family is experiencing unexplained health issues, water clarity or taste changes, and perhaps others. How stable is source waters, are they being managed or treated, what other activities could affect source water, is distribution system old and outdated, etc.

As to know, weather dissolved and suspended water parameters are within the permissible limit of domestic water.

So true Virendra Kumar Saxena

Sampling to perform laboratory test on water.Analysis is done to understand the content of chemical compounds,content related to bacteriological contamination etc.From test we can ascertain whether water now tested is drinkable or not.Also it helps us to adopt necessary treatment required to make it drinkable.

Basically to evaluate the treatment efficiency and to assure the safety of consumers.

there are basically three parameters (physical, chemical and biological). it is associated with safety and treatment performance evaluation as I mentioned above.