The document discusses the contamination problem in the Veliki Bački Kanal waterway in Serbia and proposes solutions. It describes the kanal's history and characteristics. It identifies several sources of contamination including agricultural, industrial, and municipal waste. The proposed solution includes collecting wastewater via a sewer system, a wastewater treatment plant, dredging and remediating a 6km section of the kanal, and treating contaminated sediments. The goal is to revitalize the kanal by 2015.