The process of privatization of water supply began in 1995. In 1994, as a preparatory step, Berlin Waterworks (Berliner Wasserbetriebe) was transformed from an owner-operated (completely municipal) enterprise into a public-law corporation (a sort of cooperation model) (Water Remunicipalisation Tracker 2014). In 1999, the petition for the privatization of Berlin Waterworks was voted on by the Berlin parliament governed by a coalition of Christian Democrats and Social Democrats. This decision was heavily contested and opposed by the Socialist Party (PDS), the Alliance 90/Greens, and even some Social Democrats and Christian Democrats. Despite ongoing controversy and manifestations against the decision, 49.9 per cent of the shares of Berlin Waterworks were sold to a consortium of the German RWE group (45%), French firm Vivendi (today Veolia, 45%) and German firm Allianz Capital Partners (10%, which later was sold to RWE and Vivendi). In 2006, Attac and several other environmental justice organizations, parties (e.g. Piratenpartei, Alliance 90/The Greens), the council of Catholics in the Berlin Archdiocese, and other associations and activist groups created a network of Berlin Water Table (Berlin Wassertisch) to defend water as a human right. The group started to advocate a referendum with the aim of forcing publication of the hitherto secret purchase contract and thus causing it to be cancelled (Dorothea Haerlin 2012). In February 2011, this referendum was won by the votes of more than 666,000 citizens. As a consequence of the referendum the city of Berlin bought back the shares of RWE (2011) and finally, after ongoing pressure and lobbying by Environmental Justice Organizations, also of Veolia (2013). Now Berlin Waterworks are completely owned by the city of Berlin.