Desalination Becomes A Reality In Tampa Bay Florida
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Transcript of Desalination Becomes A Reality In Tampa Bay Florida
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Desalination Becomes A Reality In Tampa Bay
Florida
Desalination Becomes A Reality In Tampa Bay
Florida
Jim JensenSenior Project ManagerPB Water Area Manager
Parsons Brinckerhoff Quade & Douglas, Inc.
San Diego
NBWA Water Conference April 2, 2004
Jim JensenSenior Project ManagerPB Water Area Manager
Parsons Brinckerhoff Quade & Douglas, Inc.
San Diego
NBWA Water Conference April 2, 2004
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InstitutionalInstitutional
Tampa Bay Water regional water wholesaler
Owns all significant wellfields Regional distribution system New surface WTP
Member governments Hillsborough, Pasco & Pinellas
counties New Port Richey, St. Petersburg &
Tampa Operate their own WTPs Retail water distribution systems
Tampa Bay Water regional water wholesaler
Owns all significant wellfields Regional distribution system New surface WTP
Member governments Hillsborough, Pasco & Pinellas
counties New Port Richey, St. Petersburg &
Tampa Operate their own WTPs Retail water distribution systems
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Why Desalination Is Needed In Southwest Florida
Why Desalination Is Needed In Southwest Florida Years of drought Overpumping from concentrated
wellfields Environmental stress to wetlands
and lakes
Years of drought Overpumping from concentrated
wellfields Environmental stress to wetlands
and lakes
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SWFWMD Required Reduction In Wellfield Withdrawals
SWFWMD Required Reduction In Wellfield Withdrawals
Average of 158 MGD pumped in 1998
Settlement required reduction in pumping to 121 MGD in 2003
Further reduction in pumping to 90 MGD by 2008
Average of 158 MGD pumped in 1998
Settlement required reduction in pumping to 121 MGD in 2003
Further reduction in pumping to 90 MGD by 2008
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Master Water PlanMaster Water Plan
$610 million capital improvement plan
Aggressive water conservation program
Skimmed surface water stored in above ground reservoir
Desalinated seawater Desalinated brackish water Limited new groundwater sources
$610 million capital improvement plan
Aggressive water conservation program
Skimmed surface water stored in above ground reservoir
Desalinated seawater Desalinated brackish water Limited new groundwater sources
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Water Master Plan Requirements
Diversified and sustainableLimited new groundwater ( reduced total groundwater withdrawal)
Drought resistantReasonably priced
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Seawater Desalination Procurement ProcessSeawater Desalination Procurement Process
Desalinated water supply 20-35 MGD
Board initially not fully committed Tampa Bay Water did not own a site Developer responsible for water
delivery system to point of connection
Design, Build, Own, Operate, Transfer
Co-funded capital costs by SWFWMD
Desalinated water supply 20-35 MGD
Board initially not fully committed Tampa Bay Water did not own a site Developer responsible for water
delivery system to point of connection
Design, Build, Own, Operate, Transfer
Co-funded capital costs by SWFWMD
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PROPOSALS
All 5 Pre-Qualified Developers Submitted
Approximately 23 options and alternatives submitted
Three sites proposedMED, MVC and RO processPower plant intake and discharge canals used
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ANCLOTE POWER PLANT
Florida Seawater DesaliantionCompany
Progress Energy/Ionics
BIG BEND POWER PLANT
Enova/SSI2
Florida Water Partners
Stone and Webster
HIGGINS POWER PLANT1
Progress Energy Ionics
1 Higgins Power Plant was eliminated from further consideration.2 Enova/SSI was not selected for further evaluation.
Proposed Desalination Site Locations
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Power Plant Co-LocationPower Plant Co-Location
Shares intake and outfall with power plant once through cooling water system
Tie in to power plant discharge pipeline on land
Increase in temperature increases production of desalinated water
Bay water salinity less than open seawater
Shares intake and outfall with power plant once through cooling water system
Tie in to power plant discharge pipeline on land
Increase in temperature increases production of desalinated water
Bay water salinity less than open seawater
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Tampa Bay Desalination FacilityTampa Bay Desalination Facility
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Desalinated Water QualityDesalinated Water Quality
Meets all local, State and Federal drinking water standards
Chloride maximum 100 mg/L (partial second pass)
Lime added to prevent corrosion Disinfectant added to prevent
biological growth in delivery pipeline
Meets all local, State and Federal drinking water standards
Chloride maximum 100 mg/L (partial second pass)
Lime added to prevent corrosion Disinfectant added to prevent
biological growth in delivery pipeline
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Seawater Concentrate DisposalSeawater Concentrate Disposal
16.7 MGD concentrate mixed with 1,350 MGD cooling water flow = 70:1
Blended discharge increase ~2% at canal discharge point
NPDES Permit minimum blending ratio 20:1 (1 of 4 generators operating)
16.7 MGD concentrate mixed with 1,350 MGD cooling water flow = 70:1
Blended discharge increase ~2% at canal discharge point
NPDES Permit minimum blending ratio 20:1 (1 of 4 generators operating)
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Public AcceptancePublic Acceptance
Extensive public information and education program from proposal process through construction
Public Service Announcements Editorial Board Presentations Open House presentations/ Q&A Focus Groups Homeowner’s Associations, etc.
70% Favorable for desalination Concern about environmental
impact NIMBY
Extensive public information and education program from proposal process through construction
Public Service Announcements Editorial Board Presentations Open House presentations/ Q&A Focus Groups Homeowner’s Associations, etc.
70% Favorable for desalination Concern about environmental
impact NIMBY
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Plant Operational StatusPlant Operational Status
Began water production in March 2003
Excessive fouling problems Did not pass Acceptance Tests Operational and other changes
reduce fouling, operational costs still to high
Production averages 22.5 MGD in February 2004 before shutdown for repairs
Began water production in March 2003
Excessive fouling problems Did not pass Acceptance Tests Operational and other changes
reduce fouling, operational costs still to high
Production averages 22.5 MGD in February 2004 before shutdown for repairs
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Plant Institutional StatusPlant Institutional Status
Covanta notified of termination of O&M contract in October 2003
Covanta files for bankruptcy delaying repairs and termination
Board nominates Interim Operations, Maintenance and Management firms
American Water Services/Pridesa Ionics/Montgomery Watson Harza Veolia Water (USFilter Operating
Services)
Covanta notified of termination of O&M contract in October 2003
Covanta files for bankruptcy delaying repairs and termination
Board nominates Interim Operations, Maintenance and Management firms
American Water Services/Pridesa Ionics/Montgomery Watson Harza Veolia Water (USFilter Operating
Services)
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Desalination Is A Reality In Tampa BayDesalination Is A Reality In Tampa Bay
Pretreatment problems resulting in excessive fouling can be fixed
The Tampa facility meets all drinking water standards
The Tampa facility is capable of producing 25 MGD of potable water
Pretreatment problems resulting in excessive fouling can be fixed
The Tampa facility meets all drinking water standards
The Tampa facility is capable of producing 25 MGD of potable water
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Questions?Questions?