SWP/CVP Operations for Delta Salinity Management John Leahigh Principal Engineer State Water Project Water Operations California Department of Water Resources.

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Presentation transcript:

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