The present study was aimed at determining the relationship between the operation of municipal landfills and the fluctuations of bacterial indicators of the sanitary quality of soil. Soil samples were collected at monthly intervals from May 2010 to April 2011 at ten sampling sites located on the premises and in vicinity of the reclaimed Municipal Landfill Site (MLS) and the new Municipal Solid Waste Management Plant in Toruń (WMP). Bacteriological analyses (the titre of coliforms, the titre of Clostridium perfringens, and the presence of Salmonella) were conducted according to the Microbiological and parasitological guidelines for the assessment of the sanitary quality of soil issued by the Institute of Rural Health in Lublin. The results obtained led to distinguishing three zones of impact of the facilities on soil. Good sanitary quality of soil was determined 100 m east of the edges of the landfill cells.