1. CWEMF Annual Meeting March 2005
SANMAN: Decision Support for the Delta Improvement Package San Joaquin River Salinity Management Plan
CWEMF Annual Meeting
March 2005

2. Presentation Content SJRWQMG Model Description
Salinity Management Actions
Draft Preferred Alternative

3. SJRWQMG List of Participants
U.S. Bureau of Reclamation
Department of Water Resources
USFWS
California Dept. Fish and Game
Central California Irrigation District
Friant Water Users Authority
Grassland Water District
James Irrigation District
Merced Irrigation District
Modesto Irrigation District
Oakdale Irrigation District
San Luis Canal Company
San Joaquin County and Delta Water Quality Coalition
San Joaquin County RCD
San Joaquin River Exchange Contractors Water Authority
San Joaquin Valley Drainage Authority
San Joaquin River Group
San Luis and Delta Mendota Water Authority
South San Joaquin Irrigation District
State Water Contractors
South Delta Water Agency
Stockton East Water District
Tranquility Irrigation District
Turlock Irrigation District
Venice Island RD 2023
California Farm Bureau
Western Growers

4. Presentation Content SJRWQMG Model Description
Salinity Management Actions
Draft Preferred Alternative

5. Model Description
The purpose of the San Joaquin River Salinity Management Model (SANMAN) is to provide reconnaissance-level decision support in the development of a San Joaquin River Salinity Management Plan by:
Identifying coordinated management strategies that meet the Vernalis salinity objective
Estimating water costs of strategies

6. Model Description (cont’d)
Microsoft EXCEL
Post-analysis of CALSIM Sequential Hydrology and CVP-SWP Operations
March 1922 thru September 1994
April - May: Half month time step
Prescribes Action Levels (e.g. re-circulation volume) Necessary to Meet Vernalis Salinity Objective Given Pre-defined Action Priorities

7. Presentation Content SJRWQMG Model Description
Salinity Management Actions
Draft Preferred Alternative

8. Salinity Management Actions
Coordinated Tributary Operations
Drainage Reduction
Drainage Management
New Melones Releases
DMC Re-circulation & Delta Actions
Purchases
Decreasing
Action
Priority

9. SANMAN Version 2.0 Schematic Action 7: Franks Tract etc.
Actions 1,2 & 6
Actions 1,2,4 & 6
Actions 1 & 6
Action 7: HOR Barrier
Operations
Actions 2,3 & 6
Stanislaus River
Tuolumne River
Merced River
Lander Ave.
639
637
636
630
620
614
Stockton
Vernalis
Maze
Mud & Salt Sloughs
Newman Wasteway
Actions 2 & 3
Action 1: Tributary Coordination
Action 2: Drainage Reduction
Action 3: Drainage Management
Action 4: New Melones Re-operation
Action 5: DMC Re-circulation
Action 6: Purchases
Action 7: Delta Water Quality Actions
Action 5
418
Tracy P.P.
Delta Mendota Canal
Action 7: Franks Tract etc.
Intertie or Exchange
419
Banks P.P.

10. Salinity Management Action: Priority 1 Actions
Coordinated Tributary Operations - Actions Applied to East Side Tributaries
Drainage Reduction – Actions Applied to 9 Regions
East Side (3 regions)
Upper DMC (3 regions)
Mud & Salt Sloughs (3 regions)
Action Levels Defined by Time Series Input

11. Salinity Management Action: Drainage Management (Priority 2)
Actions Applied to 6 Regions:
Upper DMC (3 regions)
Mud & Salt Sloughs (3 regions)
Model-Prescribed Action Level
User Specifications
Storage diversion period
Maximum storage volume
Maximum residence time

12. Salinity Management Action: New Melones Releases (Priority 3)
Model-Prescribed Action Level
Baseline Water Quality Operation Removed
User Specifications
Period of operation
Maximum annual release
Water quality

13. Salinity Management Action: DMC Re-circulation (Priority 4)
Model-Prescribed Action Level
Accomplished With Available Delta Pumping Capacity
Tracy first, Banks second
Available summer capacity “lumped”
Available capacity limited by E/I ratio, B2-EWA restrictions and higher pumping priorities

14. Salinity Management Action: DMC Re-circulation (cont’d)
User Specifications
Period of operation
Conveyance losses by month and water year type
Water quality changes by month and water year type resulting from Delta actions (e.g. Frank’s Tract)
Options
Upgrade priority
Increase availability by “paying” E/I cost
Address Stockton dissolved oxygen targets

15. Salinity Management Action: Purchases (Priority 5)
Actions Applied to East Side Tributaries and Region Upstream of Merced River
User Specifications
Period of operation
Maximum annual purchase
Water quality

16. Presentation Content SJRWQMG Model Description
Salinity Management Actions
Draft Preferred Alternative

17. Critical Year Observations as SJRIP is Phased In
Water transfer needs diminish
Vernalis water quality improves (typically)
Vernalis summer flows decrease (typically)
New Melones savings increase
Re-circulation needs (and water costs) diminish
Delta water costs increase
High- and mid-priority scenarios converge

18. New Melones Storage Savings with Phased SJRIP Implementation: Critical Year Average

19. DMC Re-circulation with Phased SJRIP Implementation: Critical Year Average

20. Vernalis Flow with Phased SJRIP Implementation: Critical Year Average (July)

21. Acknowledgements Dan Steiner, Consultant Armin Munevar, CH2M-Hill
Toshio Kyosai, CH2M-Hill
SJRWQMG (Byron Buck, Chair)
Water Users Technical Group (Dennis Majors, Chair)

22. Extra Slides

23. Salinity Management Action: DMC Re-circulation (cont’d)
Tracy Pumping Priorities
CVP contract deliveries
Export of additional CVP stored water
CVP water transfers
SWP exports through JPOD
DMC re-circulation

24. Salinity Management Action: DMC Re-circulation (cont’d)
Banks Pumping Priorities
SWP contract deliveries (including 500 cfs Jul-Sep EWA reservation & 100 TAF CVP refuges)
SWP water transfers
Additional EWA reservation
CVP exports through JPOD
DMC re-circulation

25. Water Transfer Needs with Phased SJRIP Implementation

26. Vernalis Water Quality with Phased SJRIP Implementation: Critical Year Average (July)

27. Water Cost with Phased SJRIP Implementation: Critical Year Average