bz, your being an engineer, I hope you can appreciate my being over analytical. I am quite sure that Lake Superior has many, many more gallons of water that 3.2 trillion. Isn't it a very deep lake? I am sure the statistic you sited is incorrect. A 1 acre pond with 10ft ave. depth has 3 million gal. 1 million acres at 10ft ave. is 3 trillion. Superior has to be way bigger than 1 million acres and ave. depth of 200 ft?
