<http://webisa.webdatacommons.org/433489351>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/69608236>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/433489351> .
<http://webisa.webdatacommons.org/433489351>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nawc.org> .
<http://webisa.webdatacommons.org/433489351>	<http://www.w3.org/ns/prov#value>	"Federal and state water quality standards have evolved over time and NAWC members have played an important role in their establishment by working closely with the U.S. Environmental Protection Agency and other organizations." .