About: http://webisa.webdatacommons.org/429878127

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	rawdown The distance that the water surface of a reservoir is lowered from a given elevation as water is released for power generation, flood control, irrigation, or other use.
http://www.w3.org/ns/prov#wasQuotedFrom	bpa.gov