When the Metropolitan Water District of Southern California voted to finance the lion’s share of the delta tunnels project, some on the board called it a bold stroke of leadership. The delegations from Los Angeles and San Diego, however, called the move alarming, financially risky and irresponsible. MWD’s two largest member agencies, L.A. and the San Diego County Water Authority, were on the losing end of last week’s vote to invest nearly $11 billion in the construction of two massive tunnels under the Sacramento-San Joaquin Delta.