1. 1 NODOS/Sites Reservoir: A Local Perspective Glenn Colusa Irrigation District July 2009

2. 2 Agenda Why is GCID Engaging on Sites? Planning Processes to Date PFR Planning and Overall Project Objectives Key Project Features Benefits/Challenges Evaluation to Date Sites Performance Under Current and Future Conditions Stakeholders/Potential Partners Recommended Next Steps

3. 3 Why is GCID Engaging on Sites? Sites planning has stalled recently as a result of DWR/USBR resources being focused on solving Bay-Delta problems (“Delta-centric” approach) Strong local partner needed as a catalyst for the project to promote multiple benefits and to garner broader support Need to ensure that next large water bond includes proper consideration/allocation to Sites project funding California’s Bay-Delta crisis poses limitations to operations and water supply New storage offers great potential to increase system flexibility and produce multiple benefits: – Increased water supply and improved water supply management – Improved water quality – Enhanced environmental conditions (increased cold-water reserves; assistance in meeting Biological Opinions, and water for BDCP e.g. Yolo Bypass restoration programs) Increases flexibility north of Delta (where majority of supply originates)

4. 4 Key Project Features  1.8 MAF Sites Reservoir  Pumping/Gen Plants  Funks Res. Enlargement  GCID Terminal Regulating Reservoir  Recreation Facilities  Conveyance Facilities  Road Relocations

5. 5  Diversion from Sacramento River thru existing canals and new conveyance: T-C Canal: Nov – Mar GCID Canal: Nov – Mar New Pipeline: Year Round Diversions take place primarily in the winter  Over 600 TAF can be delivered locally allowing re-operation of the system (Shasta, Oroville, and Folsom)  Water can also be released to river for downstream use Conveyance and Operations

6. 6 Planning Processes to Date DWR – ongoing North of Delta Storage Investigation (NODOS) – State Feasibility Report due in 2008 has been delayed indefinitely Reclamation/DWR – Plan Formulation Report (PFR) was completed September 2008 and released May 2009 (revised PFR anticipated in 18 months) Biological Opinions/BDCP - Sites being re-evaluated with new operational criteria GCID recently convened workshops to establish a Sites Reservoir State-Federal-Local partnership GCID pressing a go-forward strategy for project planning and re-evaluation (a process not tied to state and federal reporting requirements)

7. 7 USBR PFR Planning and Project Objectives Primary Objectives: – Increase water supply and water supply reliability and Sacramento Valley water management flexibility – Improve Delta water quality – Increase the survival of anadromous fish populations in the Sacramento River, as well as the health and survivability of other aquatic species Secondary Objectives: – Provide ancillary hydropower generation – Provide additional recreational opportunities – Provide incremental flood damage reduction benefits

8. 8 Benefits/Challenges Primary benefits evaluated to date: – water supply reliability – water quality (reduced water treatment costs) – ecosystem restoration (anadromous fish/other aquatic species as well as terrestrial habitat e.g. Yolo Bypass) Challenges: – multiple actions/issues vying for priority – quantifying benefits (e.g. relatively easy to quantify water treatment benefit vs. environmental )

9. 9 Water Supply 99 Shasta Sites Oroville Folsom  Increase Water Supply Reliability for SWP & CVP Contractors and Local Water Users  Provide Water Supply for the EWA or equivalent program  Provide Level 4 Refuge Supply

10. 10 Delta Water Quality Shasta Sites Oroville Folsom 1010  Sites to release water to augment Delta outflow in summer and fall months

11. 11 Shasta Sites Oroville Folsom Ecosystem Restoration 1111 Improve Cold Water Pool at Shasta Lake Provide Stable Flows in the Sacramento River to Enhance Conditions for Fall Run Salmon Reduce Diversions from Sacramento River During Critical Fish Migration Periods Provide Supplemental Spring Flows for Fish and Riparian Habitat Provide Supplemental Flows for Yolo Bypass & Delta

12. 12 Evaluation to Date Have evaluated a 1.8 maf Sites Reservoir assuming pre-Wanger and post-Wanger “decision” condition – post-Wanger assumes increased Delta flows and reduced exports (USFWS BO) Need to re-evaluate the project with new regulatory conditions and planned actions in the Delta: – new NMFS BO requires additional Shasta operations to benefit salmon (further reduces CVP/SWP yield) – new Delta Conveyance could affect Sites performance – Sites could help offset adverse impacts from climate change

13. 13 Sites Performance Under Current/Future Conditions Potential Yield (maf) Pre-WangerWanger = Availability of Sites to provide capacity = Wanger decision decreased yield 1.5 0 -.5 Smelt BO Smelt and NMFS BO BDCP Climate Change Modeling to be Completed Once USFWS/NMFS Action Plan is Finalized Environmental Water Quality Water Supply Environmental Water Quality Water Supply

14. 14 Sites Needs to be Durable and Account For Continued Change Delta-related – Produce benefits for supply, quality and the ecosystem while reducing stressors on the Delta – Enhance conditions for listed species throughout the system Indirect – Provide ecosystem flows, cooler water and improved habitat for anadromous fish on Sacramento River – Added flexibility from Sites can also improve the viability and effectiveness of conjunctive management, water exchanges and transfers

15. 15 Partnerships with key stakeholders essential to success GCID and other Sacramento Valley interests Municipal and industrial interests Environmental groups USBR DWR USFWS NMFS COE CDFG

16. 16 Recommended Next Steps Identify federal/state/local funding to continue to drive process Continue to build/strengthen partnerships Re-evaluate project performance under projected conditions: – NMFS BO – BDCP conveyance improvements – Climate change Evaluate alternative project configurations (e.g. small, medium, large) with goal of maximizing benefits, durability, and willing funding partners Prepare a local report document that clearly summarizes potential benefits across various interests