A little more than a decade ago, there was talk of making Lake Superior a "demonstration zone" for sustainable development that protects the environment. Now it's a demonstration zone of a different sort.
*************
Where do you put 7.2 million gallons of unwanted water every day?
A new option would send the water south, into the West Two Rivers Reservoir, which flows into the St. Louis River system and, eventually, into Lake Superior.
The problem is that the water contains sediments and sulfates, and the sheer volume makes it an issue no matter where the agency looks for an outlet.
http://www.duluthsuperior.com/mld/duluthtribune/10357406.htm