The advanced Eshkol Water Filtration Plant, completed in 2007-2008 by Mekorot, the fourth largest in the world, is located at the southwestern edge of the Beit Netofa Valley. The water first passes through two large reservoirs. The first of these is a sedimentation pond, holding about 1.5 million m³ of water, which allow suspended matter in the water to settle to the bottom, thus cleaning the water. The second reservoir is separated from the sedimentation pond by a dam and has a capacity of 4.5 million m³. Here the inflow of water from the pumping stations and open canals is regulated against the outflow into the closed pipeline. The amount allowed through depends on water demand. A special canal bypasses the reservoirs allowing water to travel straight through the carrier. Before entering the closed pipeline, final tests are performed on the water in the carrier, with chemicals added to bring the water to drinking standards. At the end of the filtration process the water enters the 108" Pipeline, which transports it 86 km to the Yarkon-Negev system near the city of Rosh HaAyin to the east of Tel Aviv and Petah Tikva.