Cause of green water in Chalmette due to food coloring, officials say
Officials say green water in the Mississippi River is due to food coloring.
According to John Ram with St. Bernard Homeland Security, Chalmette refinery built a new tank and needed to test it for leaks. Ram said the Department of Environmental Quality gave them a permit to test it with green food coloring that is non-toxic or harmful to fish and animals.
Ram said the refinery should be finished flushing it Thursday and emergency responders in St. Bernard Parish were notified of the testing.