mr. bill martin. mr. martin. >> good afternoon. bill martin. i'm a san francisco resident, customer of the sfpuc. i'm also a member of the sierra club on the water committee for the san francisco bay chapter, and i just want to ramble a little bit unfortunately because i wasn't sure what mr. ritchie was going to say. but in response to the question what are the differences relative to the various environmental organizations' positions and the p.u.c.? one thing i think it's important to take a step back and look at the big picture of this. they're concerned about the entire eco system, and i think that the focus of mr. ritchie's presentation regarding the tuolomne is important, but that's not just what this is all about. this is really about trying to restore the ecosystem back to some function -- back to some ability to actually be an ecosystem, and i think that one of the sort of taking that big picture approach, one of the problems that i have personally as an sfpuc customer and as an environmentalist is that we all share responsibility for t