<http://webisa.webdatacommons.org/prov/62620021>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/128034241> .
<http://webisa.webdatacommons.org/128034241>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/128034241>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<federalregister.gov> .
<http://webisa.webdatacommons.org/prov/183601477>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/128034241> .
<http://webisa.webdatacommons.org/128034241>	<http://www.w3.org/ns/prov#value>	"Tributaries also influence the chemical composition of downstream waters, through the transport and removal of chemical elements and compounds, such as nutrients, ions, dissolved and particulate organic matter, pollutants, and contaminants." .