The Star Tribune has a report on Minneapolis’s water system that is raising some eyebrows. It turns out that the city is much more of the water that it treats than reported. Just how much? 3 billion gallons, which is around 15% of its water. The Star Tribune says that 10% water loss is a generally accepted amount of loss, even though the city reported it was losing just 4% of its water in 2009 and still bills homeowners for the lost water. The Deets took a look at some other cities’ water loss rates, and finds that we’re still doing well, but could certainly be better.