Re “State’s plan for river flows spells disaster” (Page 7A, March 20): Restore the Delta agrees that Gov. Jerry Brown’s Delta tunnels proposal and the San Joaquin water plan by the State Water Resources Control Board will be a disaster economically and ecologically for the Delta, and that the State Water Board ignores the Delta’s area of origin rights (Water Code Sections 12200-12205). But we disagree with San Joaquin County Supervisors Chuck Winn and Katherine Miller’s treatment of fish issues.