Siemens Water Technologies provides the most comprehensive, cost-effective and reliable treatment systems and services. We offer everything from emergency water supply and conventional water treatment processes to wastewa......Siemens Water Technologies provides the most comprehensive, cost-effective and reliable treatment systems and services. We offer everything from emergency water supply and conventional water treatment processes to wastewater reuse systems, membrane bioreactors, UV disinfection systems and RO cleaning contracts. These products and services are designed to help keep your city safe, or your company profitable.