SIGMA GROUP a.s. finished an important commision for the company Mostecká uhelná a.s. The subject-matter of the commision was building a new pumping station of seepage water in the mine of the Czechoslovak Army. The seepage mine water and drained surface water in the sludge lagoon were pumped by sludge pumps SIGMA of the serie GFVF situated on the floating pontoons. The polluted mine water was transported by the PE pipe to stationary pumping station with sectional pumps SIGMA of the serie 200-CDB, which transport the medium through the force main in the length of 5000 m with the superelevation of 120 m, to the mine water works.