<http://webisa.webdatacommons.org/prov/430205043>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/253853823> .
<http://webisa.webdatacommons.org/253853823>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<gjsentinel.com> .
<http://webisa.webdatacommons.org/253853823>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/253853823>	<http://www.w3.org/ns/prov#value>	"None of the wells has ever had mechanical integrity tests, designed to identify deficiencies that could lead to problems such as leaking, agency officials contend." .