I was out on the street in front of my  house during a rain and noticed that the principal paths of storm water, long before they reach the drains, are between the curb and street edge.  I was thinking that this would be a natural place to filer this very concentrated storm runoff with a sort of continuous French drain of potentially immense dimensions.  I’m not sure if this idea  is practical or even if it would work.  I’m sure your film POTOMAC, the environmental film festival itself, and our general consciousness of the perils facing our planet all played a role in my having this idea!  Dickson Carroll, Washington, DC