Abstract
The main two supply of potable water to Amman city are Zai water treatment plant (represent 60%) and Wadi Ma'in, Zara, and Mujib (WMZM) water treatment plant (represent 30%). WMZM receives raw water from three main sources originally flowing to the Dead Sea, now collected and conveyed to a raw water reservoir at the treatment plant to produce about 110,000 m(3)/day. WMZM was commissioned in 2006 and still operating at the original design capacity. WMZM water treatment plant and its conveyance system are presently operated by Jordan Water Company-Miyahuna. This paper covers the plant description, original design parameters, and RO membrane performance after more than five years of operation.