About: http://webisa.webdatacommons.org/189826741

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	emergencies or other periods of concern, the controller can make ad hoc pollings of certain
http://www.w3.org/ns/prov#wasQuotedFrom	usbr.gov