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When natural flows to the Delta are insufficient to meet water quality standards, the State Water Project and the Central Valley Project (Projects) will be operated to meet instream water quality standards. The Projects will release supplemental, stored water to meet the water quality standards which initiates Term 91. Term 91 is a permit condition that curtails downstream diverters from taking diversions from streams when the Projects are releasing water from storage to meet the water quality standards.

More information on the DWR/USBR CVP-SWP table for Term 91 calculations.

Term 91 Curtailment Graph (2018, 2017, 2016, 2015)

Term 91 Curtailment Notices

Year Advance Notice Curtailment Notice Final Notice Extension Notice
2014 02/03/14 11/26/14    
02/11/14   01/08/14
2013 4/17/13 10/24/13   11/15/13
05/01/13 05/30/13 08/27/13
2012 5/10/12 07/24/12    


Questions about these Notices?