About: http://webisa.webdatacommons.org/113230498

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The vast majority of dissolved impurities in modern water supplies are ions such as calcium, sodium, chlorides, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	wateronline.com