SAN SIRO station

The San Siro station, located at 24, via Ottoboni, in the western part of the City, was commissioned on 15 June 1948 and restructured in 1978.

It is the most important station in the Milan waterworks because of its function as a driving force; indeed, it is the pilot station, in other words the one that controls the operation of all the others, receiving operation data of single plants: delivered quantity, pressure downstream of pumps, reservoir levels and other data.

Orders to power or stop pumps to match the water demand and all other provisions required to keep the adequate operating pressure throughout the distribution network are based on the collected information. This supervision service operates 24/7.

It is of fundamental importance for the water supply in the entire central-western area of the City and is therefore always in operation constantly.

This high-capacity station is equipped with 24 submersible pumps drawing water from about 24 m (79 ft) below ground level; the rated water flow totals 900 L (198 imp gal) per second.

A 4,900-m3 (1.08 million imp gal) reservoir is used for storage and as a settling basin. The four main 258 kW pumps draw water from the tank into the system at a rated capacity of 350 L (77 imp gal) per second each.

A purification stage composed of 24 carbon filters was commissioned in August 2004.

Apart from supplying water, the San Siro station is also the telemetry, remote control and automation centre used to remotely control and operate all the remaining pumping stations of the Milan waterworks.