Occidental Petroleum Corporation’s (OXY) Enhanced Oil Recovery Field is located in the south-central area of the Sultanate of Oman, approximately 660 kilometers from Muscat and 560 kilometers from Salalah. This oilfield was producing approximately 10,000 barrels of oil per day. A project was estalished to increase production to 150,000 barrels per day, to include the addition of a large scale steam flood facility for the recovery of approximately two billion barrels of oil over the life of the project. In a Steam Flood Enhanced Oil Recovery process, water is generated into steam on-site and injected in the wells (approximately 800 well pairs at this particular Oman plant). Steam injection lowers the viscosity of heavy oil suitable for extraction through the production wells. The fluid from the wells is a mixture of oil, water and gas that goes through a separation system. The separated water is called “Produced Water” and is heavily contaminated with dissolved solids and hydrocarbons. The requirements of OXY’s facility were similar to most selfsufficient oilfields in a remote desert environment having a limited fresh water source supply. This facility needed an integrated water treatment and recycling system capable of sustaining high volumes of boiler feed water to the steam generator plant that would otherwise be sourced through a local fresh water aquifer.