About: http://webisa.webdatacommons.org/335079049

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	Because they allow us to distinguish if contaminants are coming from natural sources, fracking and shale gas development, coal mining, coal ash disposal, or other causes.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com