11

Delta Outflow48%

Upstream Consumptive Use31%

CVP ‐SWP 

Exports17%

In‐Delta Consumptive Use

4%

Bay-Delta Region Major Faults

27%27%21%21%

10%10%

11%11%3%3%

4%4%

%%

2

Pre-1880’s

Present Time

Levee Failure

33

Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland 

4

(Island subsidence between 10(Island subsidence between 10‐‐30 ft. deep)30 ft. deep)(Island subsidence between 10(Island subsidence between 10‐‐30 ft. deep)30 ft. deep)

SWP PumpsSWP Pumps

CVP PumpsCVP Pumps

SWP PumpsSWP Pumps

CVP PumpsCVP Pumps

SWP PumpsSWP PumpsSWP PumpsSWP PumpsCVP PumpsCVP PumpsCVP PumpsCVP Pumps

Sac RiverSac River

StocktonStocktonStocktonStockton

SacramentoSacramentoSacramentoSacramento

66

50 levee breaks50 levee breaks6.5 earthquake6.5 earthquake

20 islands flooded20 islands flooded

SWP PumpsSWP PumpsSWP PumpsSWP PumpsCVP PumpsCVP PumpsCVP PumpsCVP Pumps

Sac RiverSac River

StocktonStocktonStocktonStockton

SacramentoSacramentoSacramentoSacramento

77

50 levee breaks50 levee breaks6.5 earthquake6.5 earthquake

20 islands flooded20 islands flooded

8

Islands flood with fresh water0 – 6 hours: Salt water intruding into Delta12 – 24 hours: Salt water throughout Delta1 – 7 days: 9

10

Animation Animation ––6.5 Magnitude Earthquake6.5 Magnitude Earthquake

Allows repair in vs. 3 years6 months 11

Requiring breach closures & slump restorationRequiring breach closures & slump restoration

SacramentoSacramento

StocktonStockton

SWP PumpsSWP PumpsCVP PumpsCVP Pumps 12

Rio VistaRio VistaHoodHood

Port of StocktonPort of

Stockton12” 12” -- 24” rock diameter 24” rock diameter 240,000 tons of rock stockpile240,000 tons of rock stockpile

Port of Stockton Loading Facility

Emergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee Improvements

SacramentoSacramentoSacramentoSacramento

StocktonStocktonStocktonStockton

Suisun BaySuisun BaySuisun BaySuisun Bay

State & Federal State & Federal Pumping PlantsPumping PlantsState & Federal State & Federal Pumping PlantsPumping Plants