Judge Michael Kenny of the Sacramento Superior Court today ruled that the Delta Plan is “invalid” after a successful legal challenge by multiple Delta parties who argued that the controversial plan is not protective of the water quality or the fish species that depend on fresh water flows for their survival.

The Court, in its tentative ruling vacating the plan, said the Delta Stewardship Council must redo the Delta Plan to include a number of quantitative measures of performance, including reduced reliance on the Delta for future water needs by exporters.