The water tunnels would more or less complete the state water system that was the most visible accomplishment of Brown’s father and gubernatorial predecessor, Pat Brown. The tunnels got a boost last week when two federal wildlife agencies concluded that they wouldn’t worsen the Delta’s already damage habitat. However that’s just one of the many regulatory hurdles for WaterFix, as it’s officially dubbed, the most important being an incredibly complex evaluation by the state Water Resources Control Board of its impacts.