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Tampa Bay Seawater Desalination Plant

Location

Southern Hillsborough County, Florida

Plant Type

Seawater reverse osmosis (SWRO)

Production (at initial full capacity)

95,000m³/day

Future Expanded Production

132,000m³/day

Maximum Design Potential

190,000m³/day

Water Price (projected 30-year average)

$0.659/m³

Water Price with Co-Funding

$0.497/m³

Project Cost

$150m

Membrane Facility Footprint

2,750m²

Filtration Systems

Two-stage sand filtration (intake); 5 micron cartridge (RO train)

Pump Types

800hp vertical turbine (transfer); 2,250hp horizontal split case high pressure (RO feed pump)

Number of RO Treatment Trains

Seven

Minimum Rated Production

16,000m³/day per membrane battery

Component Pressure Vessels

168 per battery

Membrane Elements

Eight per vessel

Feed Pressure

Variable 625psi to 1,050psi

ERT Energy Recovery

1,000hp (max)

Lime Contactor Average Retention Time

3min

Raw Water Source

Power station cooling water

Intake Volume (at initial full capacity)

166,000m³/day

Intake Salinity

18ppt to 32ppt

Average Intake Water TDS

26,000mg/l

Post-Filtration SDI

>5

Product Water Minimum Hardness

50mg/l of calcium

Average Concentrate Discharge Dilution

70:1

Initial Call for Proposals

October 1996

Pre-Qualification

1997

Final Proposals

February 1999

Contract Awarded

July 1999

Permitting Began

November 1999

Approvals Gained

Spring 2001

Construction Commenced

August 2001

Final Operating Permits Obtained

November 2002

Construction Completed

Spring 2003

First Water Production (20,000m³/day)

March 2003

First Acceptance Test

May 2003

Plant Placed in Standby Mode

February 19, 2004

Proposals Sought for Plant Remediation

March 2004

Remediation Contractor Selected

November 2004

Large-Scale Pilot Testing Begins

January 31, 2005

NPDES Minor Permit Modification Application Submitted

June 2005

Plant Remediation Design Completed

September 2005

Remediation Commenced

October 2005

Plant Remediation Completion

Spring 2007

Acceptance Test Concluded

November 2007

Plant Fully Operational

End of 2007

Client

Tampa Bay Water

Remediation Contractor/Final Operator

American Water-Pridesa

Remediation Design Engineering

Hatch Mott MacDonald

Client's Consultants

R. W. Beck

Project Engineer

King Engineering

Original Lead Contractor

S&W Water (Stone and Webster - Poseidon Resources JVC)

Later Lead Contractors

Poseidon Resources with Covanta Energy (2000-1); then with Covanta Tampa Construction (2001-2); finally Covanta Tampa Construction alone

Transmission Main Construction

Garney

Ductile Iron Pipe and Fittings

American Cast Iron Pipe

Other Contractors

The Industrial Company; Ogden Water Systems
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