About: http://webisa.webdatacommons.org/220307738

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	Most codes specify a minimum of 12 below the ground, mainly to protect it against shovels and picks while doing yard work.
http://www.w3.org/ns/prov#wasQuotedFrom	terrylove.com