Main pumping station List (old sewage treatment plant), conversion to the three-course pre-cleaning plant with screening machines, sewage pumping station, piping and outdoor pools. Throughput: approx. 2,000 m 3 / d or Q (h max): 376 m 3 /H.

Main pumping station KA List: Old sewage treatment plant List Full conversion of the existing sewage treatment plant in List a. Sylt. Construction of three pre-treatment plants incl. Collecting tanks, sand traps, grease traps and clearing collection in compact construction within already existing buildings or basins, conversion and refurbishment of wastewater storage tanks as well as construction of a dry sewage pumping station with self-rinsing wastewater pumps. Incl. All structural changes in the building stock (building construction and container construction), the steel construction as well as the complete plant piping and new construction of the E / MSR-complete technology for the treatment, pumping and conveying systems and an emergency generator. Connection to the existing PE pressure pipe drainage and sewage system as well as to the existing control technology in the ZKW Westerland.

Design data: Throughput: approx. 2,000 m 3 / d, or Q (h, max): approx. 376 m 3 /H.

Ready-to-use handover: Mid-July 2020.

Type and scope of contract award: bids may be submitted on a batch-by-batch basis (lot 1: building technology, lot 2: mechanical engineering, lot 3: electrical / instrumentation and control technology).