Household water treatment (HWT) provides a means of improving water quality and preventing disease for people sans reliable access to safe drinking water. HWTS is in practice in the rural and urban areas of Dindigul district, Tamil Nadu.

Prevalence of kidney stone disease is common in Trichy city and even in adjacent areas. Middle-aged people are more vulnerable. Male are more vulnerable than the female. According to Saturation Index, all the groundwater sources in Trichy Town have the Crystallization (stone forming) tendency.