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<http://webisa.webdatacommons.org/198346486>	<http://www.w3.org/ns/prov#value>	"Katrina Takes Environmental Toll --Warning Issued On Water 07 Sep 2005 The dank and putrid floodwaters choking this once-gracious city are so poisoned with gasoline, industrial chemicals, feces and other contaminants that even casual contact is hazardous and safe drinking water may not be available for the entire population for years to come, state and federal officials warned Tuesday." .