Lot-wise allocation for the new construction of drinking water tanks on Sylt:

Drinking water tank 1 Westerland for 2 x 2,500 m 3 Storage volume and drinking water tank 2 lists for 2 x 500 m 3 Storage volume There is a subdivision into the lots building structure (lot 1), system technology (lot 2), and EMSR technology (lot 3).

Lot 1: building structure:

TO 1: Component Westerland: New construction of a drinking water tank with 2 x 2,500 m 3 Usable volume, octagonal floor plan of the 2 water chambers, in slack reinforced concrete construction, new construction of the service house with building wing for the Westerland pumping station including electrical rooms, fine finishing including all surface work, thermal insulation, roof seals. In addition all civil engineering and earthworks as well as groundwater management. Rental of the on-site concrete mixing plant on the construction site, delivery of the required concrete quality according to DVGW W 300ff.

Circumference: 9,000 m 3 enclosed space, 1,800 m 3 Reinforced concrete.

TO 2: List component: New construction of a drinking water tank with 2 x 500 m 3 Usable volume, square floor plan of the 2 water chambers, in slack reinforced concrete construction, new construction of the service house with building wing for the List pumping station including electrical rooms, fine finishing including all surface work, heat insulation, roof sealing. In addition, all earthworks and groundwater management. Relocation of the on-site concrete mixing plant to the construction site according to List, provision of the on-site concrete mixing plant on a rental basis at the construction site. Delivery of the required concrete qualities according to DVGW W 300ff.

Circumference: 3,000 m 3 enclosed space, 950 m 3 Reinforced concrete.

Lot 2: Plant engineering TO 1: Plant engineering Westerland: pumping station with 5 drinking water pumps with a maximum total volume flow of 1,600 m 3 / h, delivery height 50 mWS, wall ducts, pressure doors, entrances, piping within the water chambers: DN 400 - DN 600 etc. stainless steel, material no. 1.4571, piping in the pumping station and in the control house (approx. 130 m) seamless steel pipes DN 100 - DN 600, refurbished, associated fittings and fittings, ventilation devices and air filters per water chamber.

TO 2: System technology List: Pumping station with 4 drinking water pumps with a maximum total flow rate of 290 m 3 / h, delivery head 50 mWS, wall ducts, pressure doors, entrances, piping within the water chambers: DN 100 - DN 300 etc. stainless steel, material no. 1 4571, piping in the pumping station and in the operating house (approx. 130 m) seamless steel pipes DN 100 - DN x00, refurbished with rils, associated fittings and fittings, ventilation devices and air filters for each water chamber.

Lot 3: E / MSR technology TO 1: E / MSR technology Westerland: Complete E / MSR technology for the monitoring and operation of the pumping station with 5 drinking water pumps with a maximum total volume flow of 1,600 m 3 / h, delivery head 50 mWS, frequency converters and PLC controls in accordance with the requirements of the existing control system in the WW Westerland, processing and transfer of all operating and monitoring data to the existing WinCC and Acron operating systems in the WW Westerland. Compatibility requirement: 100% to the existing system. The 5 existing drinking water pumps have a separate S7300 control, the emergency control takes place via a hardware circuit. The control is integrated into the existing WinCC control system. Power is supplied with 400 amps and low voltage from the NSHV in the waterworks. The power supply for the new switchgear is fed in parallel from this LVM. The new drinking water pumps can thus be tested and operated in parallel with the old drinking water pumps.

TO 2: E / MSR technology List: Complete E / MSR technology for monitoring and operating the pumping station with 4 drinking water pumps with a maximum total volume flow of 290 m 3 / h, delivery head 50 mWS, frequency converters and PLC controls in accordance with the requirements of the existing control system in the WW Westerland, processing and transfer of all operating and monitoring data to the existing WinCC and Acron operating systems in the WW Westerland. Compatibility requirement: 100% to the existing system. The emergency power supply for the new system will continue to be provided by the existing unit in the List waterworks.