Prior to adopting the Delta Plan, an Interim Plan was developed to guide the Council during development of the Delta Plan. The Interim Plan included procedures and tools the Council would use to make recommendations for early actions, projects, and programs. Those early actions were projects and programs deemed necessay to implement before a Delta Plan could be established.
The Council then began work on the Delta Plan and the environmental review process required under the California Environmental Quality Act (CEQA). The Council convened public workgroups as a means of soliciting input that assisted in the development of the Interim Plan and Delta Plan.
The Council adopted the Interim Plan on August 27, 2010. The Delta Plan must be implemented by January 2011 as mandated by the Delta Reform Act of 2009.