About: http://webisa.webdatacommons.org/69626406

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	Aquifers are out of sight, often difficult to identify and measure, and they are far from uniform in thickness, shape, and such important properties as porosity and permeability.
http://www.w3.org/ns/prov#wasQuotedFrom	ku.edu