| CCTV | 
        Closed circuit television | 
      
      
        | CEE | 
        Central and Eastern Europe | 
      
      
        | CIS | 
        Commonwealth of Independent States | 
      
      
        | COS | 
        Centralna (Wastewater Treatment Plant) | 
      
      
        | DANCEE | 
        Danish Cooperation for Environment in Easter Europe | 
      
      
        | EBRD | 
        European Bank for Reconstruction and Development | 
      
      
        | EU | 
        European Union | 
      
      
        | lcd | 
        litre per capita per day | 
      
      
        | LOS | 
        Lewobrzezna (Wastewater Treatment Plant) | 
      
      
        | MB | 
        Mechanical Biological | 
      
      
        | MC | 
        Mechanical Chemical | 
      
      
        | O&M | 
        Operations and Management | 
      
      
        | UfW | 
        Unaccounted for Water | 
      
      
        | WTP | 
        Willingness to Pay | 
      
      
        | WWTP | 
        Waste Water Treatment Plant | 
      
      
        | PWiK | 
        Poznanskie Wodociagi i Kanalizacja Sp. z o.o |