I was just reading an article in Irrigation and Green Industry online magazine about St.Johns County Florida putting restrictions on irrigation and fertilizer applications due to excessive nutrients moving into bodies of water in the area. It seems as though they would begin looking at aerating and topdressing lawns with compost which would solve two problems for them. Number one it would reduce the need for chemical fertilizers and two it would add organic matter to the soil that would hold back the run off. The process would also improve the soil. Seems much more simple and earth friendly.
This situation is a prime example of how an alternative method could be helpful if only it was applied.