Poland, Koziegłowy - Central Sewage Treatment Plant for the city of Poznań (1996-2005)
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Poland - Poznań - Left Bank Sewage Treatment Plant (1998-1999)
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Poland, Piła - GWDA Sewage Treatment Plant for the city of Piła (1996-1999)
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Poland, Jamno - Sewage Treatment Plant for the city of Koszalin (2002-2003)
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Poland, Rzeszów - Sewage Treatment Plant for the city of Rzeszów (1996-1997)
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Poland, Białystok - Sewage Treatment Plant for the city of Białystok (1997)
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Poland, Człuchów - Człuchów Sewage Treatment Plant (2001)
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Poland, Śmiłowo near Piła - Farmutil HS Farming and Industrial Plant (1994)
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Poland, Pszczew - Sewage Treatment Plant for the city of Pszczew (1996-1998)
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Poland, Staszów - Sewage Treatment Plant for the city of Staszów (1993-1994)
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Poland, Świebodzin - Sewage Treatment Plant for the city of Świebodzin (1995-1996)
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Poland, Zgierz - Sewage Treatment Plant for the city of Zgierz (2001-2003)
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Poland, Złotów - Sewage Treatment Plant for the city of Złotów (1996-1998)
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Poland, Tarnowo Podgórne - Sewage Treatment Plant for the city of Tarnowo Podgórne (2000-2001)
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Poland, Września (1998-1999)
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