About: http://webisa.webdatacommons.org/328528385

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	Some states, such as Wisconsin, have a construction cut-off date beyond which fly ash is not permitted to be used in concrete until the following spring.
http://www.w3.org/ns/prov#wasQuotedFrom	dot.gov