At present, the town of Třešť-Salavice has no public sewerage and wastewater treatment plant. Sewage water is collected in technically unsatisfactory pits and septic tanks, with an ambush into the Třešťský creek. The project deals with the construction of a new sewage sewerage system and a new WWTP with a capacity of 220 EO in the city district of Třešť – Salavice. Connecting the new sewage sewage system to the new wastewater treatment plant ensures the removal and cleaning of sewage waters in accordance with the applicable legislation of the Czech Republic.