Due to his nature, durability and intensity the mining-metallurgical activities were and still are pollutant. The soil pollution is the cumulative effect of mining wasted deposits. The 31.5 ha waste dump is situated on the North, North-West of a town. The cinder yard is on the left flank of a valley and the South district of a town; between quota +223.40 m watermark and quota +282.09 m at the baseboard of the cinder yard. The ground has 5-70 inclination; the deposits are 10-50 m thick and 50 m high. The waste dump contains 5.974.580 t ironworks residues.