switzerland-zurich: collected and purified water./ project renewal seewasserwerk moos (incl. pw-horn) area: trade 2, process engineering./ the seewasserwerk moos has to be rehabilitated during operation. the services to be provided by the provider include all systems for the water treatment process and the technical systems of the buildings (with the exception of electrical and communication technology), the steel construction for platforms and stairs as well as lifting systems (elevators and crane systems). the work will be spread over a period of about 10 years. there is a strong dependency on the other trades involved in the project at the same time (civil engineering work and various construction services, automation, electrical engineering).