https://www.asianage.com/india/all-india/201119/karnataka-school-introduces-water-bell-to-create-awareness-about-drinking-water.html
The objective is to make students drink enough water every day.
karnatakaschoolintroduceswaterbell
https://www.oregon.gov/oha/ph/healthyenvironments/drinkingwater/sourcewater/pages/pdp-schools.aspx
In the spring of 2012, 22 Oregon schools participated in the United States Department of Agriculture's (USDA) analysis of their drinking water
oregon health authorityschool drinking waterstudypesticides