First The contract is for the execution Koczargi pumping zone in Koczargi old village Stare Babice. The scope of the contract includes: a) Execution of a building with an attic storey business. The building has a basement jednoprzestrzenne of technological pipelines and fittings. In the basement there are such facilities as the generator room, electrical room, duty office and toilet. The building is equipped with a mechanical ventilation system with supply and exhaust with electric heating. The ground level of the world of technical devices. The entire roof covered wielospadowym. - A building area of ??77.7 msup 2, - 108.7 msup 2 usable area, - The total area of ??149.7 msup 2, - 890 msup 3 capacity building. b) Implementation of the expansion chamber dimensions in plan 2m x 2m. Chamber wall height of 2.5 m c) Implementation of the chamber air deriving designed as an object underground chamber - Ventricular internal dimensions 2.47 x3, 5 m each.