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Explore key insights on landmark decisions, implications, climate change challenges, and hydrology review from the CALAFCO 2007 Annual Conference workshops. Delve into legislative and ecosystem trends, addressing water resource implications and LAFCO's role in water supply management, extension of services, and boundary reviews. Understand the current conditions in California water resources and the impact of climate change uncertainties on water availability and future strategies for sustainability.
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CALAFCO 2007 Annual ConferenceSUSTAINABILITYLAFCO’s Role in Meeting the ChallengeWednesday, August 29, 2007Hyatt Regency, Sacramento 2007 California Water Developments “Our Challenged Water Resources – A Serious Look at Sustainability”
Workshop Overview – Part I • Landmark decisions – affecting water resources • Implications to Southern California, Bay-Delta, source areas (Sierra Nevada) • Potential Challenges and Strategies • Climate change
Workshop Overview – Part II • CKH guidance • Water determinations • Metrics used • Compatibility with State/federal laws • Flexibility and Liability • Adaptive Management
Re-Cap of California Hydrology • Two-thirds of precipitation in the Sierra and north • Two-thirds of demand in south • Majority precipitation in November-March • Majority of demand in March-November
Re-Cap of California Hydrology • Allocation and timing challenge • Convergence of Sacramento – San Joaquin rivers • Delta sensitivity
Delta Sensitivity • Maintain Delta ecosystem health • Delta smelt • Salmon/steelhead migration • Water quality objectives • Water deliveries
2007 Federal/State Events • State Pumps shut down for 9 days in June • Federal Pumps shut down this summer • CVP-OCAP challenged • USFWS Biological Opinion for Delta Smelt • NOAA Biological Opinion for Salmon/Steelhead • DMC Intertie/SDIP challenged • Governor’s Delta Vision Committee (E.O. S-17-6)
2007 Federal/State Events (cont.) • Bay-Delta Conservation Program/Plan • Revisit – Peripheral Canal • DWR – Drought Preparedness Workshops • California Water Plan Update 2009 • CVRWQCB – understaffed by one-third
Other Developments • Westlands Water District – 1 MAF entitlement transfer • Quantification Settlement Agreement (QSA) - Imperial Irrigation District/Coachella Valley Water District – Colorado River • Ninth Circuit Court – Columbia River – take “recovery” into account on jeopardy determinations under the federal ESA
Legislative Developments • AB 32 – Global Warming Solutions Act • SB 59 - Reliable Water Supply Bond Act • Sites and Temperance Flat reservoirs • AB 224 – Climate Change and Water Resource Protection Act • DWR to include climate change in all reports required under the Water Code
Legislative Developments (cont.) • SB 27 – Sacramento/San Joaquin River Delta, Clean Drinking Water, Water Supply Security and Environmental Improvement Act of 2008 • SB 732 – Prop 84 Bonds – fund projects related to water quality, flood control, waterway protection and climate change • AB 1066 – Ocean Council – sea level rise information to OPR • AB 1404 – joint water diversion and use reporting database
Current Conditions • “Critically Dry-Year” in the San Joaquin R. watershed • “Dry-Year” in the Sacramento R. watershed • Reservoir inflows low • Reservoir storages low – potential for low carryover • Depleted reservoir coldwater pools • Potential hydropower bypasses • Emergency purchases/transfers • Moratoriums on new services
Ecosystem Trends – Delta Smelt, Longfin Smelt, and Striped Bass The Bay Institute Bay-Delt Plan Periodic Review Issue: Delta Outflow January 12, 2005
Ecosystem Trends – X2 Upstream Migration The Bay Institute Bay-Delt Plan Periodic Review Issue: Delta Outflow January 12, 2005
Pelagic Organism Decline (POD) Unauthorized “take” at the State pumps CVP-OCAP uncertainty Coldwater pool decline Reduced deliveries to southern California Uncertain future hydrology Where are we today?
Climate Change Effects - California What we are unsure of: • Magnitude of change • Temporal variability • Spatial variability
Water Resource Implications • Source area hydrology will likely change (snowpack, rainfall, runoff, ET, GW recharge) • Water availability – total, spatial, seasonal • Increased water transfers/wheeling • New supplies • Supply capture balanced with flood control • Delta – will remain an important conveyance and ecosystem component • Demands will continue to grow
What does this mean for LAFCo? • Should acknowledge that: • Water Supplies being Firmed Up • New Supplies being Explored • Difference between “paper” and “wet” water • Transfers occurring between Agencies • Delivery Constraints • North-South “equation”
LAFCo Mandates • LAFCo required to review timely availability of adequate water supplies for any organization change • Gov’t Code §56668k Water Code §65352.5 • LAFCo reviews extension of services outside of boundaries • Gov’t Code §56133 (in vs. out of sphere) • LAFCo reviews services to previously unserved territory within unincorporated areas • Gov’t Code §56434
Surface Water Groundwater Recycled Water Demand Reduction Desalination Water Supply Availability
How real is the water supply? • “Safe Yield” • Entitlement restrictions (contract, water right, third party agreement) • Has it been “perfected”? Long-term or temporary • Shortage provisions • Constrained by storage capability • Constrained by reservoir operational rules • Shared beneficial uses (hydropower, recreation, etc.) • Seasonal use restrictions • Would it offset or delay other customers already within the service area?
Federal Water “Shortage Policy” 100,000 AFA M&I Contract Ave. Historical Use – 50,000 AFA Maximum current cutback – to 37,500 AFA (Dry Year) Maximum ultimate cutback – to 75,000 AFA Example
Water Rights – Terms and Conditions Minimum bypass flow requirement Water right – 100 cfs Fish bypass flows – 25 cfs (May-June) Fish bypass flows – 35 cfs (May-June) in Dry Years Example
Water Rights - Recreational Flows Water right of 500 cfs Recreational flows – no diversions upstream of Point (May-September) Requirement for increased releases during specific periods Example
Water Rights – Need for Implementation Approval 50,000 AFA water right Federal facilities required to take water Have yet to secure a federal Warren Act contract (wheeling agreement) Example
Third Party Agreements e.g., Sacramento Water Forum 62,000 AFA total entitlement 54,900 AFA wet-year diversion 39,000 AFA voluntary cutback in dry-years Example
New Infrastructure Improvement Folsom Dam and Reservoir Joint Federal Project FDS/FDR New Flood Encroachment Curve Effects on long-term carryover for Folsom water supply Example
Changing Rules for CVP/SWP and Delta Operations Long-term prescriptions? Exports In-Delta standards COA Term 91 (balanced conditions) Accommodations for flood control Climate change effects Example
Can the supply be accessed? • Is it in a readily accessible reservoir? • Are diversion/conveyance improvements necessary? • Does adequate treatment capacity exist? • What is the status of the purveyor’s distribution infrastructure? • Are there water quality concerns?
Cross-county coordination? “First-come/First Served” edict still appropriate? Prior rights? By approving a certain annexation; are we acceding to a water supply alternative with greater environmental effects? Other Issues?
What form of assurance is appropriate? • Verbal commitment • “Will serve” letter • Development Agreement • Others?
Options for Water Supply and Infrastructure Verification • Accept as is… • Request explanation and discussion • Defer to published information • Perform internal assessment • Seek third party review
Are determinations perpetual? • Are LAFCo determinations unchangeable? • What happens if: • Water supply availability was over-estimated? • Water delivery proves unreliable? • Changes in federal/State regulations? • Current project shown to adversely affect historic customers (e.g., WQ, reduced reliability)? • Financing for required CIPs are delayed?
Can LAFCos Condition Approvals? • Could a LAFCo: • Require periodic monitoring and reporting? • Review established milestones – to re-verify facts? • Include Re-Opener clauses in agreements? • Amend certain Terms and Conditions of Determinations? • Seek mitigative remedies? • Thereby: adopt Adaptive Management principles in the discharge of duties under CKH?
Liability Concerns • Who bears the burden of liability if: • Water supply information inadvertently omitted important data? • New information proves a previous LAFCo determination inaccurate? • It is shown that an approved delivery (through annexation) could trigger adverse effects under federal law (e.g., Endangered Species Act)
Liability Concerns (cont.) • It is shown that an approved delivery (through annexation) could trigger adverse effects to other existing residents? • Project timing is delayed because certain approvals have not been secured by the water purveyor? • Conveyance failure occurs? • Development project has to de-mobilize?
Findings? Recommendations? CALAFCO? Follow-Up Actions?
THANK YOU! 2007 California Water Developments “Our Challenged Water Resources – A Serious Look at Sustainability” Robert Shibatani Consulting Hydrologist and Water Industry Advisor PBS&J RSShibatani@pbsj.com