The developer of the Leeward Estates residential, resort, and mega yacht marina complex in Turks and Caicos needed a complete water cycle solution, one that could be phased in gradually to match the staged expansion of the development.

Phased installation of modular systems allows more manageable capital use because developers don’t have to complete a large plant to service an entire development before the first section becomes available.

Because Turks and Caicos suffers from water scarcity, potable water is generally sourced from reverse osmosis desalination. In the Leeward Estates development, the developer wanted to go beyond desalination and also treat the complex’s wastewater to nonpotable reuse standards, a less costly way to source irrigation water than desalination.

In the Caribbean generally, up to 85% of wastewater is discharged untreated, causing incalculable harm to reefs and tourism. Leeward Estates’ wastewater, however, is treated to provide a reliable, low-cost stream of safe irrigation water while protecting the surrounding environment.

Seven Seas Water Group was able to provide timely, phased installation of a modular seawater reverse osmosis plant that provided 250,000 GPD (946 m³/d) of fresh water when completed, along with 50,000 GPD (189 m³/d) of modular membrane bioreactor (MBR) wastewater treatment.