Westin Resort, St. John USVI

Project Highlights

Number of Treatment Units: 2
Source water: Open Seawater Intake and wells
Pretreatment: Multimedia and cartridge filtration
Energy Recovery: Calder Pelton Wheel

Westin Resort, St. John
Reverse Osmosis Seawater Desalination Plant

In June 1999, TSG commissioned a 160,000-gallon per day seawater reverse osmosis plant for the Westin Resort on St. John, United States Virgin Islands. TSG owns and operates this facility and its related wastewater plant under a long-term water sale agreement. Project goals included:

• Replacing and expanding an inefficient 100,000 gpd unit with a state of the art treatment system.
• Renovating the process building to meet local flood plain and hurricane requirements.
• Reducing system power consumption through the incorporation of energy recovery equipment.
• Providing post treatment to reduce corrosion to island appliances.

Removal of the old equipment, renovation of the buildings, and installation of the new equipment were precisely planned and coordinated to maintain the resort’s water production at all times.

TSG has operated, maintained, and consistently provided pure drinking water to the resort and its guests. TSG also replaced the seawater intake to improve both the quality and reliability of the system's feedwater source.

Upon successful completion of the water treatment system upgrades, Westin commissioned TSG to replace the resort's distribution and irrigation pumping systems.

"TSG has made a tremendous impact on the Westin St. John Resort and Villas.
We run a world class resort on the exclusive island of St. John with over
100,000 guests staying at our resort on an annual basis. The importance of
providing water to a very demanding clientele is critical to our success and
survival. TSG has provided a very professional and highly competent team to
run our reverse osmosis plant. They have always been available to help not
only in running our plant, but with designing new pumping systems for our
potable water system, assist in repairs to our distribution system when
needed and generally been available 24 hours a day during any crisis. They
are an invaluable company with great resources, and a genuine willingness to
be a partner in our success."

Graeme Davis, General Manager

Digital Rendering of Desalination Plant

The completed Desalination Plant