A citizen’s group backed by leading anti-P3 organizations is trying to force a referendum on a proposed P3 sewage plant in Regina, Saskatchewan. A group backed by the Council of Canadians and the Canadian Union of Public Employees says it presented the city clerk with a petition signed by more than 24,000 people. If enough signatures are validated—19,300 are required—council will have to call a referendum on the Cdn $224-million (capital, procurement and project management costs) project within nine months.