An Update of Coastal Desalination Status in the West Coast

Transcription

1 An Update of Coastal Desalination Status in the West Coast Joseph Wong, Brown and Caldwell CA-NV AWWA Fall Conference September 30 October 3, 2013 Sacramento, California

2 Map of Proposed Desalination Plants in the West Coast as of 2010 Brown and Caldwell 2

3 Survey results by water desalination report: Nov. 8, 2010 Which large-scale California Desalination Plant will be the first to make water? (courtesy of WDR) Brown and Caldwell 3

4 Active West Coast Desalination Projects as of 2013 Project Name Location Partners Capacity, mgd Startup Year Bay Area Regional Desalination Project Pittsburg EBMUD, SFPUC, CCWD, SCVWD, Zone SCWD 2 Santa Cruz City of Santa Cruz, Soquel Creek WD 2.5 TBD Monterey Peninsula Desalination Project Marina California-American Water & Others City of Sand City Sand City City of Sand City Cambria Cambria Cambria Community Services District, Army Corps of Engineers 0.4 TBD West Basin WD Redondo Beach West Basin Huntington Beach Huntington Beach Poseidon Resources, Orange County Water District South Orange Dana Point MWDOC Carlsbad Carlsbad Poseidon Resources, San Diego County Water Authority Oceanside Oceanside City of Oceanside Camp Pendleton Camp Pendleton SDCWA TBD Baja California, Mexico Rosarito Beach, Baja California NSC Agua, Otay Water District Baja California Bi-national Rosarito Beach, Baja California Mexico, SDCWA, Central Arizona Water Conservation District, MWD, Southern Nevada Water Authority TBD Total Brown and Caldwell 4

5 Sand City Desalination Plant Owner: City of Sand City, CA Design-Builder : CDM Operator: California American Water (Cal-Am) Plant Capacity: 0.6 mgd Treatment: Cartridge Filtration (CF) RO-UV-Stabilization Construction Cost: $14 million Commissioned Year: 2010 Water Source: Combination of Fresh/Brackish/Seawater Intake: 4 60-ft deep Beach Wells Concentrate Disposal: Beach Well Present Status: Producing about 100 million gal/yr Brown and Caldwell 5

6 Carlsbad Desalination Project Owner: Poseidon Resources Project Partner: San Diego County Water Authority Design/Construction/O&M: Kiewit Shea Desalination /IDE America Plant Capacity: 50 mgd Total Cost: $922 million Commissioning Year: 2016 Treatment: GMF or MF, Micro-screen, CF, RO, Chloramine, Lime and CO 2 Stabilization Intake and Concentrate Disposal: Power Plant Cooling System Status: Under Construction Brown and Caldwell 6

7 Monterey Peninsula Water Supply Project Owner: Cal-Am Partners: MPRWA, MPWMD, County of Monterey Design-Builder: To be Selected (in Progress) Capacity: mgd (Depend on GWR Project) Commissioning Year: 2017 Estimated Construction Cost: $ million Treatment: GMF-CF-RO-Stabilization- Chlorination (Hypo) Intake: Slant Wells Concentrate Discharge: MRWPCP Outfall Brown and Caldwell 7

8 Baja California (Mexico) Desalination Project Owner: Consolidated Water Company (NSC Agua) Partner: Otay Water District Capacity: mgd Commissioning Year: 2017 (1st Phase - 50 mgd) Total Construction Cost: $600 million (Mexico) + $30 million (U.S.) Treatment: DAF, GMF, CF, RO, Stabilization, Disinfection Intake and Concentration Discharge: Power Plant Cooling System Special Permit: Presidential Permit Status: Pilot testing of pretreatment for 6 months; will test RO next year; started environmental reports for Presidential Permit; had initial conversation with CDPH Brown and Caldwell 8

9 Doheny (South Orange Coast Ocean) Desalination Project Owner: Municipal Water District of Orange County Partners: MWD, Laguna Beach County WD, Moulton Niguel WD, City of San Clemente, City of San Juan Capistrano, South Coast WD Capacity: 15 mgd Estimated construction cost: $175 million Anticipated commissioning year: 2018 or 2010 Treatment: subsurface sand filtration, possible FE/MN removal, CF, RO, stabilization, disinfection Intake: Slant wells Concentrate discharge: Dana Point WWTP outfall Status: More detailed studies on issues; preliminary engineering and cost opinion; environmental baseline monitoring not initiated; more coastal GW modeling will be conducted. Brown and Caldwell 9

10 Huntington Beach Desalination Project Owner: Poseidon Resources Partner: Orange County Water District (Potential) Capacity: 50 mgd Anticipated Commissioning Year: 2018 Other Features: Similar to Carlsbad project Status: OCWD board approved feasibility study to purchase up to 50 mgd product water on 7/24/2013; 11 state legislators sent letter of appeal to California Coastal Commission to support the project on 8/1/2013; the CCC permit is the last permit required. Brown and Caldwell 10

11 West Basin Municipal Water District Desalination Project Owner: West Basin MWD Potential Partner: MWD Capacity: mgd Location: El Segundo or Redondo Beach Anticipated Commissioning Year: 2018/19 Treatment: Screening-Coag.-GMF-MF/ UF-CF-RO-Stabilization-Disinfection Intake: Smaller Pipes in existing cooling water tunnel Concentrate Discharge: Multi-port diffusers Estimated Cost: $ million for 20 mgd Present Status: Completed Master Plan 1/13; More studies are being conducted Brown and Caldwell 11

12 Bay Area Regional Desalination Project Partners: EBMUD, SFPUC, CCWD, Santa Clara VWD, Zone 7 Capacity: 20 mgd Anticipated Commissioning Year: 2020 Location: Pittsburg Water Source: Brackish water Treatment: MF-CF-RO Intake: Open Concentrate Disposal: Co-disposal with WWTP Effluent Status: Various studies Brown and Caldwell 12

13 City of Oceanside Desalination Project Owner: City of Oceanside Capacity: 5-10 mgd Anticipated Commissioning Year: 2020 Estimated Construction Cost: $ Million Treatment: Filtration, CF, RO Intake: Vertical GW Wells Concentrate Disposal: New Outfall? Status: Evaluation of Missions Narrows Exploration & Testing, GW Flow & Solute Transport Modeling Brown and Caldwell 13

14 Camp Pendleton Desalination Project Owner: San Diego County Water Authority Capacity: mgd Anticipated commissioning year: TBD Feasibility study: completed end of 2009; identified two sites in Camp Pendleton Estimated construction cost: $ billion MOU with Camp Pendleton: April 2010 Intake: consider both open and subsurface Treatment: DAF and MF, CF, RO for open intake; CF, RO for subsurface intake Status: completed planning studies for desalination plant and conveyance system; board will vote to determine if go further Brown and Caldwell 14

15 Becoming Inactive West Coast Desalination Projects Project Name Location Partners Capacity, mgd Startup Year Bay Area Regional Desalination Project Pittsburg EBMUD, SFPUC, CCWD, SCVWD, Zone SCWD 2 Santa Cruz City of Santa Cruz, Soquel Creek WD 2.5 TBD Monterey Peninsula Desalination Project Marina California-American Water & Others City of Sand City Sand City City of Sand City Cambria Cambria Cambria Community Services District, Army Corps of Engineers 0.4 TBD West Basin WD Redondo Beach West Basin Huntington Beach Huntington Beach Poseidon Resources, Orange County Water District South Orange Dana Point MWDOC & Others Carlsbad Carlsbad Poseidon Resources, San Diego County Water Authority Oceanside Oceanside City of Oceanside Camp Pendleton Camp Pendleton SDCWA TBD Baja California, Mexico Rosarito Beach, Baja California NSC Agua, Otay Water District Baja California Bi-national Rosarito Beach, Baja California Mexico, SDCWA, Central Arizona Water Conservation District, MWD, Southern Nevada Water Authority TBD Brown and Caldwell 15

16 Santa Cruz/Soquel Creek scwd 2 Project Partners: City of Santa Cruz, Soquel Creek Water District Location: Santa Cruz Capacity: 2.5 mgd Estimated Construction Cost: $115 million Treatment: Pretreatment-CF-RO-Stabilization- Disinfection Intake: Open or Subsurface Concentrate Disposal: Existing WWTP Outfall Status: Completing EIR; City Suspended Public Voting of Project Brown and Caldwell 16

17 Cambria Desalination Project Owner: Cambria CSD Partner: U.S. Army Corps of Engineers Capacity: 0.6 mgd Construction Cost: $16.4 million + $3.7 million for Renewable Energy System ($10.3 million Federal Fund) Treatment: CF-RO-Stabilization Intake: Subsurface Concentrate Disposal: Subsurface Exfiltration Gallery Status: Inactive Due to Opposition from Govt. Agencies Brown and Caldwell 17

18 Rosarito Beach Bi-national Desalination Plant Project in Baja, Mexico Lead Agency: San Diego County Water Authority Partners: MWD, SNWA, Central Arizona Conservation District, Republic of Mexico Capacity: mgd Location: Rosarito Beach, Baja, Mexico Intake: Existing Power Plant Cooling System Concentrate Disposal: Existing Power Plant Cooling System Status: Feasibility Study Completed in 2010; Seeking More Funding, Inactive Brown and Caldwell 18

19 The Adventure of Desalination in Marin County MMWD started looking at bay water desalination during the drought Conducted pilot testing in early 1990s People voted to use Russian River over desalination for future supply Russian River supply became unreliable due to environmental problems in 2000 Initiated EIR in 2001 and conducted desalination pilot testing in Certified EIR in 2009 for a 5-15 mgd project Board suspended project due to declining water demand trend in April 2010 Two competing ballots in Nov.2010 voters supported project when needed Opponents won a law suit to declare EIR non-compliant with CEQA in August 2011 Court ruling was appealed by MMWD in Nov and overturned in May 2013 State Supreme Court cleared the way for the desalination project when needed in Sept MMWD has no plan to pursue desalination in the near future Brown and Caldwell 19

20 Observations and Conclusions Desalination is still an important water resource to deal with the water deficit problems in the West Coast Out of the approximately 20 proposed desalination projects in the west coast several have been abandoned in the past 3-4 years Reasons for abandonment: fierce opposition, high cost, water demand reduction, permitting efforts Reasons for opposition to desalination projects generally include: environmental issues, high energy usage, high cost, and growth inducement It generally takes long time (>10 yrs) and tremendous effort to obtain all required permits and deal with issues and opposition Brown and Caldwell 20

21 Observations and Conclusions Desalination is necessary in Southern California due to problems with Colorado River and Delta water supply issues The final approval of the Carlsbad Desalination project will help to boost the future construction of many more desalination facilities in California and throughout the country RO is expected to remain as the main desalination process in the near future Use of intake subsurface wells is the preferred intake method by regulators and environmentalists Brown and Caldwell 21

22 Questions Brown and Caldwell 22