Governor Brown could well have reignited the state's water wars by announcing the massive tunnel system designed to carry water from the Sacramento River to cities and farmland in the south.
Supporters say the plan achieves the dual goals of having a reliable water system and a healthy ecosystem in the Delta.
But opponents, who staged a large rally at the state capitol, say the project needs more study. Democratic Congressman John Garamendi was among them.
Garamendi: "They have put plumbing before policy, they have put the canal or the tunnel before the science."
But the Governor says he won't be hindered by what he called "analysis paralysis"
BROWN: "Despite spending hundreds of millions of dollars studying this damn thing, people will say, well you haven't studied it enough, well we will study and we will take action."
Brown persuaded the legislature to approve a peripheral cannel three decades ago, but the measure was defeated in a referendum in 1982.