1 / 11

San Diego County Water Issues 2010 Update

San Diego County Water Issues 2010 Update. Seawater Desalination for San Diego. Maritime Business and Technology Summit November 16, 2010. Water Authority Background. Wholesale water agency created by state Legislature in 1944

breindel
Download Presentation

San Diego County Water Issues 2010 Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. San Diego County Water Issues 2010 Update Seawater Desalination for San Diego Maritime Business and Technology Summit November 16, 2010

  2. Water Authority Background • Wholesale water agency created by state Legislature in 1944 • 24 member agency water districts, cities and one military installation: Camp Pendleton • 36-member board of directors • Serves 3.2 million people and region’s $174 billion economy • Service Area • 920,000 acres • 97% of county’s population

  3. Regional Water Supply Diversification 2020 2011 1991 5% 7% 10% 3% 13% 6% 5% 4% 6% 11% 17% 12% 95% 9% 23% 22% 52% Metropolitan Water District Conservation (per 2005 UWMP Goal + SBX 7-7) Imperial Irrigation District Transfer Seawater Desalination Local Surface Water All American & Coachella Canal Lining Dry-Year Water Transfers Recycled Water Groundwater

  4. Why Desalination? • Water supply diversification • Climate-independent local water supply • Reduces reliance on increasingly constrained imported water supplies • Cost-competitive with other new supplies • Successful implementation worldwide

  5. Marginal Cost of the Next Increment of Local Supply(Actual Proposed San Diego Region Project Unit Costs) $1,717 $2,086 $2,190 (2005$) $2,300 $1,900 $2,340 (50 mgd) (100 mgd) $/AF Brackish Groundwater Indirect Potable Reuse Seawater Desalination * Cost of re-treatment not included

  6. Seawater Desalination Process

  7. Carlsbad Desalination Project • 50 mgd desalination project being developed by Poseidon • Project is fully permitted • Included in 2005 Water Authority Urban Water Management Plan • Water Authority would be sole purchaser of water • TermSheet between Water Authority and Poseidon approved by the Board on July 22 • Risk transfer to Poseidon • WPA pre-negotiation activities • under way • On-line in 2013

  8. Proposed Camp Pendleton Desalination Project • Proposed project is a 50 -150 mgd desalination project • Construct in phases over time • Located in the sw corner of Camp Pendleton • MOU executed with Marine Corps to continue with planning/technical studies • New intake and discharge infrastructure required • Next phase of study under way • Earliest on-line date is late 2020

  9. Rosarito Desalination PlantFeasibility Study • Colorado River water supply augmentation • Completed Feasibility Study (Phase 1) • No Fatal Flaw Found • Environmental Permitting would be challenging • Next Phase (Phase 2) • Detailed site analysis, conveyance alternatives, refine cost estimates and review product water exchange w/ MX • Decision on whether to pursue Phase 2 expected this year • Otay Water District also pursuing a similar project at the power plant site ROSARITO POWER PLANT 9

  10. Desalination Technology Innovation on the Horizon • Expanded use of large diameter RO membranes • Continued improvement in RO isobaric energy recovery • Application of nano-technology to RO membranes • Use of renewable energy generation for desalination • Ocean-related energy technologies • Osmotic power (related application)

  11. Questions?

More Related