The institute grew through the 1960s and 1970s: first came the Kastanienbaum hydrobiological research centre,[REF] followed in 1968 by WHO's recently-created International Reference Centre for Waste Disposal, out of which the current Department for Sanitation, Water and Solid Waste for Development (Sandec) emerged [REF].
In 1970 Eawag, until then an institute within ETH Zurich becomes an affiliated institute within the ETH system, moving a few months later in their new premises in Dübendorf [REF].