The construction of the wastewater treatment plant will cover 40,000 inhabitants in Lazarevac and 20,000 inhabitants in Veliki Crljeni. In order to preserve nature, the rivers Lukavica and the river Kolubara the following will be constructed: WWTP 1 Sopic PE-40,000 and WWTP 2 Veliki Crljeni PE-20,000. The total length of the sewage network that will be constructed in Lazarevac is 25,052.88 meters, and 52,597.59 meters in Veliki Crljeni. The construction of the sewage network will include the following settlements, villages and parts of the municipality of Lazarevac: Lazarevac – 5,737.48 m, Sopic – 1,074.28 m, Beli Potok – 18,241.12 m and Veliki Crljeni, primary and secondary network – 52,597.59 m.

The implementation of the “Clean Serbia” Project in the Municipality of Lazarevac began on October 20, 2021.

Within the scope of the “Clean Serbia” Project, 25,052.88m and a wastewater treatment plant  will be constructed in the municipality of Lazarevac. which will cover 40,000 inhabitants.

In Veliki Crljeni, 52,597.59 meters of sewage network and one wastewater treatment plant are being constructed, which will cover 20,000 inhabitants.

So far, 3537.14 m of sewage network has been constructed in Lazarevac and Veliki Crljeni, of which 3373.14 m are in Veliki Crljeni, and 164 m are in Lazarevac.

The current situation regarding the sewage network in Lazarevac  was described by the President of the Municipality of Lazarevac Bojan Stević at the very opening of the works: “The start of the works on the construction of the municipal infrastructure is of immeasurable importance for the residents of Lazarevac and the Local Community of Veliki Crljeni, because up until now, the sewage was drained as an open fecal collector in front of their households in the form of cesspools.”

The value of the works in the municipalities of Lazarevac and Veliki Crljeni is 48 million EUR.