Pilot Project Alternatives

Pilot Project AlternativesFRANKS TRACTSan Joaquin RiverFalse RiverOld R i v e rSacramento RiverOperable Gates in Three Mile SloughAlt #1Operable Gates in Old RiverOperable Gates in Holland CutOperable Gates in False RiverOperable Gates in Sand Mound SloughSan Joaquin RiverOperable Gates in False RiverAlt #2Alt #3Alt #3Alt #2Alt #4Three Mile Sl.

FRANKS TRACTSan Joaquin RiverFalse RiverOld R i v e rSacramento RiverAlt #1San Joaquin RiverOperable Gates in False RiverThree Mile Sl.Operation ScenariosClosed20% OpenOpen/CloseWest False River Alternative

Base False River Restriction 20% OpenFalse River Gate Open/Close Operation False River Gate Closed Year 2002 - Tidally Averaged ECSWP

Year 2002 - Tidally Averaged ECCVPBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Old RiverBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Rock SloughBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Victoria CanalBase False River GateThree Mile Slough Gate

Year 2002 14-Day Average ECSacrament River @ Emmaton

West False River, Tidally Average EC, Sept 1, 2002

BaseOpen/Close GateClosed20% Open

Year 2001 - Tidally Averaged ECSWP

Year 2001 - Tidally Averaged ECCVP

Year 2001 - Tidally Averaged EC CCWD at Old River

Year 2001 - Tidally Averaged EC CCWD at Victoria Canal

Year 2001 - Tidally Averaged EC CCWD at Rock Slough

Year 2001 - Tidally Averaged ECSWPThe TMS Gate diversions were able to further reduce EC at the Clifton Court intake in December 2001, a time when SWP export flows were increased.

Three Mile Slough Gateand West False River Gate1992 SimulationsWest False River gate operation begins May 1, 1992 - About the time when EC for the SJR near Jersey Point begins to rise above Franks Tract ECFRG operation ends Dec 7, 1992 when central Delta begins to be flushed with fresher water from the Mokelume system. (Dont want the gate to impede the flushing of the central Delta)TMS gate was not operated. There was not the opportunity to balance the Emmaton and Jersey Point flows (net flow for the SJR at Jersey Point most always greater than the net flow for the Sacrameto R. at Emmaton).

Three Mile Slough Gateand West False River Gate1992 SimulationsThe West False River gate raises EC at Emmaton a slight amount. Historically the DCC was closed a few times in late May and early June 1992 to meet Emmaton standards. The DCC may require some additional closure with the FRG operation to maintain the Emmaton EC.

Year 1991 - Tidally Averaged ECSWPBase Three Mile Slough Gate 1000 cfs diversion False River Gate 20 % Open

FRANKS TRACTSan Joaquin RiverFalse RiverOld R i v e rSacramento RiverOperable Gates in False RiverOperable Gates in Sand Mound SloughSan Joaquin RiverAlt #2Alt #2Three Mile Sl.Operation ScenariosClosedFalse River Gate Open on Ebb TideEast Levee + 2 Gates Alternative

2002 Tidally Averaged ECSWP

Base East Levee Open on Ebb East Levee Closed

BaseClosedOpen on Ebb

East Levee + 2 Gates, Tidally Average EC, Sept 1, 2002

FRANKS TRACTSan Joaquin RiverFalse RiverOld R i v e rSacramento RiverOperable Gates in Old RiverOperable Gates in Holland CutSan Joaquin RiverAlt #3Alt #3Three Mile Sl.Operation ScenarioClosedOpen Gates on Holland Cut during Ebb TidesCOX: Holland Cut + Old River Gate Alternative

2002 Tidally Averaged ECSWPBase Cox Alternative Open on Ebb Cox Alternative Closed

BaseClosedOpen on Ebb

COX, Tidally Average EC, Sept 1, 2002

Three Miles Slough AlternativeFRANKS TRACTSan Joaquin RiverFalse RiverOld R i v e rSacramento RiverOperable Gates in Three Mile SloughSan Joaquin RiverThree Mile Sl.Operation:Close during Portion of Ebb Tide

Three Mile Slough GateVariable Diversion for 2002(daily average diversion in cfs from Sacramento to San-Joaquin)June1500July3000August3000September 1-202500September 21-30 500October 1-15 500October 16-311000November 1-10 1000November 11-30 2000December 1-15 2000December 16-31 0

Three Mile Slough Gate ClosureCLOSEDOPENCLOSEDOPENCLOSEDOPEN4 - 6 hrs4 - 6 hrs

Base False River GateThree Mile Slough GateOne Gate OpenDCC OperationOne Gate Open2002 Tidally Averaged ECSWPPeriod of Operation Both Gates Open

Year 2002 - Tidally Averaged ECCVPBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Old RiverBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Rock SloughBase False River GateThree Mile Slough Gate

Year 2002 - Tidally Averaged ECCCWD at Victoria CanalBase False River GateThree Mile Slough Gate

Three Mile Slough GateTidally Average ECSept 1, 2002

BaseThree Mile Slough Gate

Three Mile Slough GateVariable Diversion for 2001 (daily average diversion from Sacramento to San-Joaquin)

Year 2001 - Tidally Averaged EC SWPThe TMS Gate diversions were able to further reduce EC at the Clifton Court intake in December 2001, a time when SWP export flows were increased.

Three Mile Slough GateVariable Diversion for 1994 (daily average diversion from Sacramento to San-Joaquin)

Year 1991 (Critical)-Tidally Averaged EC, SWPBase Three Mile Slough Gate 1000 cfs diversion False River Gate 20 % Open

Operate Three Mile Slough Gate

in Lieu of

Delta Cross Channel Gates

DCC ClosedThree Mile Slough Gate Diversion for 2002(daily average diversion from Sacramento to San-Joaquin)

Year 2002 - Tidally Averaged ECOld River at Bacon Island

Preliminary Result Water Quality Benefits during drought

Three Mile Gate During Drought PeriodBase-OCAP3 Mile Gate Operated

Changed Fisheries since some fish like Smelt are not part of fisheries

Particles do not exhibit fish behavior in these simulations but indicate flow patterns where water parcels go and so they give an indication of factors that can affect fish

Pilot Project Alternatives

Documents

averaged ec ccwd

averaged ecswpyear

averaged ecccwd

averaged eccvpyear

emmatonwest false river

averaged ecswpbase

false riveroperable

false riveralt