<http://webisa.webdatacommons.org/prov/411338640> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/433611209> . <http://webisa.webdatacommons.org/433611209> <http://www.w3.org/ns/prov#wasQuotedFrom> <hanson-inc.com> . <http://webisa.webdatacommons.org/433611209> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/433611209> <http://www.w3.org/ns/prov#value> "Proper containment and treatment of wastewater is a critical issue affecting communities, industries and society at large." .