About: http://webisa.webdatacommons.org/284770015

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	It is very large (about 5 million samples), with many types of measurements for many different environmental media, from USGS and other agencies.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov