About: http://webisa.webdatacommons.org/441497290

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	As groundwater flows through the ground, metals such as iron and manganese are dissolved and may later be found in high concentrations in the water.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov