Assertion: calcium hypochlorite's chlorine | /r/AtLocation | public water supplies
Facets:
value: to kill disease-causing pathogens
type: PURPOSE
Source sentences:
text: As a halogen, chlorine is a highly efficient disinfectant, and is added to public water supplies to kill disease-causing pathogens, such as bacteria, viruses, and protozoans, that commonly grow in water supply reservoirs, on the walls of water mains and in storage tanks.