The population is growing in Tel Aviv, but it only rains in the winter months. Therefore people’s drinking water supply is secured by seawater desalination plants which filter the seawater and make it drinkable. Currently, one of the largest seawater desalination plants in the world is being built in Sorek, 15 kilometers south of Tel Aviv. It is expected to supply up to 150 million cubic meters of drinking water a year. Intake and outfall tunnels connect the plant with the Mediterranean Sea. Pumps at the coast suck in the seawater through pipelines. After the salt has been separated and the impurities filtered out, the drinking water is channeled into the urban infrastructure. The brine then flows back into the sea through the outfall. Three AVN micromachines from Herrenknecht (Ø 3,100mm) are driving three routes with a total of 9 drives and a total length of 9.4 kilometers through sand, clay and calcareous sandstone.