Gov. Jerry Brown, whose administration proposed the Water Fix, said, “This project has been subjected to 10 years of detailed analysis and more environmental review than any other project in the history of the world. It is absolutely essential if California is to maintain a reliable water supply.” The Water Fix as proposed by Brown still includes the Twin Tunnels. Two 40-foot diameter pipes would run for 30 miles under the Delta to bypass the habitat that supports endangered animal and plant species.