SWP/CVP Operations for Delta Salinity Management John Leahigh Principal Engineer State Water Project Water Operations California Department of Water Resources July 25, 2014 Fundamental Water Project Operations What are the Delta Salinity Standards? How do the Projects Manage Salinity? Unique Challenges this Year and Next Store Water Release Storage Summer Flow FallSpringWinter Project Reservoir Operation 4 Salinity Intrusion Before and After Managed Upstream Reservoirs After (1944 1990) Before (1920 1943) D-1641 Bay-Delta Standards Locations 6 The Projects have 3 knobs to turn 1) Releases 2) DCC Gate 3) Exports Daily Tidal Cycle Flow of Flood and Ebb Tides (cfs) 340,000330,000 80,000 71,000 58,000 47,000 2,000 1,000 Overlay of Monthly Spring/Neap Cycle Travel Times Present a Challenge Delta Lake Shasta Lake Oroville Folsom Lake Outflow CVP/SWP Coordinated Operations Agreement (COA) BanksJones DCC Gate Trade-Offs: DCC Gate Operations May Conflict with Fish Migration January 2014 Emergency Drought Barriers Sutter Slough Steamboat Slough West False River Clifton Court Forebay Electrical Conductivity Dec May 2014 Sacramento River at Verona Flow