FRESNO, Calif. (AP) — California water officials said Wednesday that a $14 billion twin-tunnel plan for the Sacramento-San Joaquin Delta would restore the ecosystem and reduce deaths of threatened fish, although during dry years the delta smelt would be killed at the same rate as today.

During water-scarce years, the existing pumps in the south portion of the delta would continue to divert most of the water, cause reverse flows and kill the fish that get caught in the machinery, according to an analysis in new draft chapters released by the California Resources Agency.