About: http://webisa.webdatacommons.org/90754503

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	Perchlorate is particularly widespread in California and the Southwest, where it has been found in groundwater and in the Colorado River, a drinking-water source for 20 million people.
http://www.w3.org/ns/prov#wasQuotedFrom	wibw.com