CALAFCO Conference


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Trends in California Water Management

• CALAFCO Conference
• Monterey CA
• September 9 2005
• Robert Shibatani Mark Horne
• EIP Associates

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• Water Trends
• Supply Overview
• Water Trends
• LAFCo Implications

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Water Supply Overview
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Californias Water Supply

• About 190 million acre-feet of rain and snow/
  year
• About 75 falls north of Sacramento
• About 75 of demand is south of Sacramento
• About 75 falls between November and March
• About 75 of demand is between April and October
• Depend on Cold Storage in the form of snow pack
• About 60 soaks into ground evaporates or is
  used by native vegetation
• Of remaining 40
• 36 flows to ocean
• 28 committed to environment
• 28 used by agriculture
• 7 used by cities and industry

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Californias Water System
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Hydrology OverviewWatering Entering the State
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Hydrology OverviewWatering Leaving the State
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Hydrology OverviewStorage Changes
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Storage/Allocation Problem

• Cannot capture/retain Annual Inflows
• Excess Unimpaired Inflow
• Undersized Reservoirs
• Flood Control Mandate of CVP/SWP
• New On-Stream Reservoirs - Difficult
• Cannot deliver to use areas
• Distant source reservoirs
• Undersized/non-existent Conveyance

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What are the Short-Term Supply Solutions

• Transfers
• Assignments
• Intra- and Inter-Regional
• Groundwater Banking/Conjunctive Use
• Demand Reduction
• Water Conservation - Offset
• Recycled Water - Offset

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What are the Delivery Constraints

• Infrastructure Limitations
• Aged/Inefficient Facilities
• Cost to Build New Facilities
• Time to Build/Approve New Facilities
• Regulatory Controls
• Delta Water Quality X2
• ESA Biological Opinions Minimum Flows
• CVP Dedicated Yield

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Water Trends

• Traditional Water Planning
• Water Supply
• Storage and Delivery
• Groundwater
• Water Quality
• Documentation
• New Water Planning

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Traditional Water Planning

• Single Agency
• Single (or Few) Sources
• Safe Drinking Water Act
• Water Quality Analysis
• 12 parameters

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Recent Trends Supply

• Multiple Sources
• Local Supplies
• Surface Groundwater
• Imported Water
• Water Transfers

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Recent Trends Supply

• Non-Traditional Sources
• Recycled Water
• Storm Water
• Conservation
• Colored Water
• Desalination

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Recent Trends Storage Delivery

• Limited Surface Storage Options
• Increase in Conjunctive Use
• Aging Infrastructure

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Recent Trends Storage Delivery

• Variations in Supply
• Climate Variability
• Interruptible Water
• SWP Reliability Report
• Environmental Concerns

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Recent Trends Groundwater

• Basins in Overdraft
• Conjunctive Use
• Expansion of Artificial Recharge
• Aquifer Storage Recovery (ASR)

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Recent Trends Groundwater

• Quality Concerns
• Contaminants from Prior Land Uses
• Disinfection By-Products (THMs)

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Recent TrendsWater Quality

• Drinking Water Regulation
• Tanner Bill Prop. 65 CA Toxics Rule etc.
• MCLs DLRs UCRMs etc.

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Recent TrendsWater Quality

• Surface Water Regulation
• NPDES
• Point Non-Point Sources
• TMDLs
• Watershed-based Implementation Strategies

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Recent TrendsWater Quality
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Recent TrendsWater Quality
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Recent TrendsWater Quality

• Emerging Contaminants
• Pharmaceuticals Personal Care Products
• Endocrine-Disrupting Compounds

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Recent TrendsDocumentation

• Source Water Assessment
• Wellhead Protection Program

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Recent TrendsDocumentation

• Source Water Assessment
• Wellhead Protection Program
• Groundwater Management Plan (AB 3030)
• Urban/Agricultural Water Management Plans

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Recent TrendsDocumentation

• Source Water Assessment
• Wellhead Protection Program
• Groundwater Management Plan (AB 3030)
• Urban/Agricultural Water Management Plans
• Information Exchange for General Plans
• Water Supply Assessment (SB 610)
• Water Supply Verification (SB 221)

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SB 610Water Supply Assessment

• 500 Residential Dwelling Units
• 500 Hotel/Motel Rooms
• 500000 sq. ft. Retail (or 1000 employees)
• 250000 sq. ft. Commercial (or 1000 employees)
• 650000 sq. ft. Industrial (or 40 acres or 1000
  employees)

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SB 221Water Supply Verification

• Subdivision for 500 units

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SB 610 221Is the Supply Adequate

• Average Water Year
• Single Dry Water Year
• Multiple Dry Water Years

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SB 610 221Information Sources

• Local Water Agencies
• Urban Water Management Plans
• Water Agencies with 3000 connections
• What to do in Developing Areas

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Water TrendsOther Issues

• Habitat Species Open Space Protection
• Land Conservation

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Water TrendsOther Issues

• Local Watershed Plans

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Water TrendsOther Issues

• General Plans
• Optional Water Element
• Another Link Between Land Use Water

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Water TrendsOther Issues

• Optional Water Element
• Water Supply
• Water Quality
• Wastewater Treatment
• Storm Water Management
• Flood Management

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Water TrendsOther Issues

• Storm Water Liability
• Paterno v. State of California

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Water TrendsThe New Water Planning

• Integrated Regional Water Management
  (Proposition 50 Chapter 8)

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New Water Planning

• IRMW Plans may include
• Water Supply Reliability Water Conservation
  Water Use Efficiency

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New Water Planning

• IRMW Plans may include
• Water Supply Reliability Water Conservation
  Water Use Efficiency
• Groundwater Recharge Management Projects

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New Water Planning

• IRMW Plans may include
• Water Supply Reliability Water Conservation
  Water Use Efficiency
• Groundwater Recharge Management Projects
• Demonstration Projects for Drinking Water
  Treatment Distribution Methods

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New Water Planning

• IRMW Plans may include
• Water Supply Reliability Water Conservation
  Water Use Efficiency
• Groundwater Recharge Management Projects
• Demonstration Projects for Drinking Water
  Treatment Distribution Methods
• Water Banking Water Exchange Water Reclamation
  Improvement of Water Quality

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New Water Planning

• IRMW Plans may include
• Storm Water Capture Storage Treatment
  Management
• Planning Implementationof Multi-Purpose Flood
  Control Programs

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New Water Planning

• IRMW Plans may include
• NPS Pollution Reduction Management
  Monitoring
• Contaminant Salt Removal

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New Water Planning

• IRMW Plans may include
• Removal of Invasive Non-Native Plants
• Creation and Enhancement of Wetlands
• Acquisition Protection Restoration of Open
  Space Watershed Lands
• Watershed Management Planning Implementation

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New Water Planning

• IRWM Plan Contents
• Regional Agency or Group
• Water Management Strategies
• How Integration Improves Reliability
• Regional Priorities
• Implementation Strategies
• Relation to Local Planning

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New Water Planning

• IRWM Issues
• Short Timeline to Prepare a Draft
• Self-Defined Region (Overlap Gaps)
• Is There Life After Prop. 50

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LAFCO MandatesGovernment Code 56430

• Infrastructure Deficiencies
• Growth Population Projections
• Financing Constraints Opportunities
• Cost Avoidance
• Rate Restructuring
• Shared Facilities
• Government Structure
• Management Efficiencies
• Local Accountability Governance

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Contemporary Examples from Water Agency
Perspective

• Water Supply Infrastructure
• A B C D Daisy Chain Model
• Firm Yield Multiple Dry Years
• Groundwater Banking - Accounting
• Folsom Re-Operation Growth Moratorium
• Sacramento Water Forum
• Engineering/Hydraulics

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Keys to Integrated Regional Water Management
PlanningLAFCO Considerations

• Recognize Water Management Trends
• Recognize Spatiality 3 Dimensions
• Recognize Potential of MSRs Key Tool
• Questions
• What is an Appropriate Region
• Who should assume the Lead Role
• Can Regional Plans provide Local Info

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Questions
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Trends in California Water Management

• Robert Shibatani
• rshibatani_at_eipassociates.com
• 916-325-4800
• Mark Horne
• mhorne_at_eipassociates.com
• 310-268-8132