You have raised a very valid ...

You have raised a very valid question. In fact I work in the field of Drinking water treatment. On the quality side the Central Govt has only "recommendations" ( based on WHO) , These need to be converted in to "regulations". Net result there is no accountability with our water suppliers as far Quantity and Quality are concerned. Forget U.S. or the developed countries where well developed laws prevail. But the fact about water related public health is that India is placed alongwith conditions exists in sub saharan african countries. So irresponsible and uneducated are the lawmakers that few years ago they raised a hue and cry on the quality of Colas in the Parliament. I dont think in last 67 years of independence anyone has uttered a single word on the drinking water quality. In fact Internationally we have become a laughing stock that the country which sends the Satellite to Mars in a one go, Cannot provide the basic and fundamental rights about safe water and dignified sanitation.