Paul Helliker - BDCP

Paul Helliker - BDCP

• 1.
  The Bay Delta TheHeart of California’s Water System
• 2.
  Bay Delta Conservation PlanBriefing October 5, 2013 2 Paul Helliker Deputy Director CA Department of Water Resources
• 3.
  Areas of Californiaserved by water supplies from the Delta. Over 24 million people depend on the Bay-Delta system for drinking water (two-thirds of the State’s population). 2.5 million acres irrigated at least in part by water from the Delta, supporting California’s $27 billion agricultural industry. Water Supplies
• 4.
  DWR, 2010 California SnowpackPredictions
• 5.
  - 20 ft. -5 ft. - 15 ft. - 25 ft. Below Sea Level -30 -20 -10 -5 ft Delta Islands Below Sea Level
• 6.
  Data from DFGGrandTab 2012 Report
• 7.
  Data from DFGGrandTab 2012 Report
• 8.
  Source: DFW
• 9.
  • Subsidence • Earthquakes •Climate Change • Declining Species • Regulatory Uncertainty “64% chance of catastrophic failure due to earthquake or storm in the next 50 years.” Delta Challenges
• 10.
  Over 100,000 Acres ofRestored and Protected Habitat Monitoring and Adaptive Management 50 Year Ecosystem- Based Plan ESA-HCP NCCPA- NCCP New North Delta Conveyance 10 Bay Delta Conservation Plan
• 11.
  • Large ScaleRestoration • Alternative Conveyance 11 BDCP Fundamental Components
• 12.
  Habitat Restoration Water Facilitiesand & Operations Other Stressors 22 Conservation Measures 200 Biological Goals and Objectives for 56 species 11 of which are aquatic species 11 1 10 12 BDCP Conservation Strategy
• 13.
  • 65,000 acresof Restored Tidal Habitat • 10,000 acres of Restored Floodplain • 20 Levee Miles Restored Channel Margin • Enhanced Floodplain Habitat in the Yolo Bypass • Thousands of acres of Restored and Protected Riparian & Terrestrial Habitat • More than 100,000 acres of Restored and Protected Habitat in the Delta over 50 Years • Up to 30,000 acres of restored habitat in next 15 years 13 Habitat Restoration Goals
• 14.
  Gravity Flow Benefits Include: •Reduced energy consumption and greenhouse gas emissions • Installation of fewer transmission lines Preliminary Draft – Subject to Change • Gravity flow • Three proposed intakes and three proposed pumping plants for a total of 9,000 cfs capacity • Three state-of-the-art fish screens held to performance standards to protect passing fish • Intermediate Forebay for temporarily storing the water pumped from the river 14 Current Proposal Dual Conveyance with Pipeline/Tunnel
• 15.
  • Two tunnelsto carry water 35 miles to the existing pumping plants in the south Delta, where it would be moved into existing aqueducts • 840-acre forebay at Byron Tract • Total power requirement- 50 MW • Continued use of South Delta SWP/CVP facilities Preliminary Draft – Subject to Change 15 Current Proposal continued Dual Conveyance with Pipeline/Tunnel
• 16.
  • Reduce forebayfrom 750 to 40 acres • Reduce tunnel shafts from 7 to 5 • Move alignment east – away from towns • Reduce height of pump buildings from 60 to 30 feet New Alignment Preliminary Draft – Subject to Change
• 17.
  10/1/2013 DRAFT -Not for distribution 17 Shasta End of September Storage
• 18.
  18 Evaluation • 3,000 cfstunnel option is covered in the BDCP EIR/S • Economic calculations of the cost/benefit of the portfolio proposal addressed in Chapter 9 of the BDCP and accompanying documents • Other water use efficiency and supply alternatives (recycling, desalination) are being facilitated in IRWM and regulatory programs Problems • Does not meet long-term needs/co-equal goals – reliability for all Delta diversions • Has negative cost/benefit ratio • Does not address reverse flows and south Delta restrictions • Reduces habitat restoration by 60% • Cost estimates for local water supply offsets are significantly low • Funding source for local water supply projects is not identified Response to NRDC Proposal
• 19.
  Alternative Description TotalBenefits and Costsa, b Alternative Facility Size (cfs) Deliveries (MAF) Total Benefitsc Total Costsd Net Benefits BDCP Proposed Action High- Outflow 9,000 4.705 $18,011 $13,328 $4,684 BDCP Proposed Action Low- Outflow e 9,000 5.591 $18,795 $13,343 $5,452 A: W Canal 15,000 cfs 15,000 5.009 $23,820 $10,789 $13,030 B: Tunnels 6,000 cfs 6,000 4.487 $14,967 $12,123 $2,844 C: Tunnels 15,000 cfs 15,000 5.009 $23,820 $15,381 $8,438 D: Tunnels 3,000 cfs 3,000 4.188 $8,918 $10,039 -$1,121 E: Isolated 15,000 cfs 15,000 3.399 -$7,531 $15,436 -$22,967 F: Through Delta N/A 4.172 $9,301 $4,887 $4,415 G: Less Tidal Restoration 9,000 4.705 $18,011 $13,146 $4,865 H: More Restoration 9,000 4.705 $18,011 $13,219 $4,792 I: More Spring Outflow 9,000 4.338 $13,508 $13,182 $326 Notes: a Construction is assumed to begin in 2015. BDCP operations are assumed to begin in 2025. b All values are in 2012 $ (millions), and are discounted to present value using 3% real discount rate. c Benefits are calculated out to year 2075. d Costs are calculated out to year 2075. e Benefits for the BDCP Proposed Action Low-Outflow Scenario are calculated relative to the Existing Conveyance Low-Outflow Scenario, which assumes Scenario 6 operations, no Fall X2, no north Delta diversions. cfs = cubic feet per second; MAF = million acre-feet Present Value Benefits and Costs ($ millions)
• 20.
  60 Hetch Hetchy Seismicupgrade: $4.5 billion This retrofit includes replacing pipes over SF Bay with a tunnel, a new dam and upgrade of water treatment facilities. Source: Mountain Cascade Inc. Photo: abc News
• 21.
  Project Cost Population Served Percapita cost MWD Diamond Valley Lake / Inland Feeder $3,100,000,000 18,000,000 $172 EBMUD $517,000,000 1,300,000 $398 SDCWA Emergency Storage Project $1,500,000,000 2,800,000 $536 BDCP 14,700,000,000 25,000,000 $588 CCWD Los Vaqueros Project $570,000,000 550,000 $1,036 SWP Coastal Aqueduct and CCWA Project $575,000,000 430,000 $1,337 SFPUC’s Hetch Hetchy Project $4,600,000,000 2,500,000 $1,840 Water Investment Projects
• 22.
  22 Water Action Plan •Brown Administration’s Action Plan for Next Five Years • Addresses Storage, Conservation/Local Projects, Transfers, Flood Management, Water Quality, Etc. • Complements Delta Conveyance and Ecosystem Restoration