http://www.raingutterprosinc.com/

I read somewhere recently that a business owner in Salt Lake City was fined for capturing rain water from the roof of the business and used to supplement his water needs but couldn't find any more info. In searching, however, I did find this link above. Kudos to LA for doing the right thing here.
The new construction of my house will include rain water collection and storage to be used for all toilet flushing and washing. I lived in the USVI back in the 90's and my house/hut had a water collection system with a systern under the house. No matter what end of the political spectrum each of us likes to categorize ourselves, I'm sure we all agree on taking care of the environment.