Germany, Central Treatment Plant, Darmstadt (1992 - 1995)

Austria, Water Supply Edmund Graf Hütte (1992 - 1993)

Ghana, Water Sector Rehabilitation Project (Area B) (1991 - 1997)

Nepal, Water Management Project , Namche Bazar (1989 - 1991)

Germany, Wastewater Treatment Plant Eberstadt (1989 - 1992)

Rwanda, Water Supply for the Lava Region (1988 - 1992)