The project concerns the realisation of the new general wastewater plan in accordance with specific directives of Swiss water associations, with cantonal guidelines and existing technical specifications. It contains the necessary wastewater disposal information, such as: canalisations to rehabilitate or to replace, canalisations to realise, priorities, necessary works, construction, maintenance and operating costs, cantonal and federal allowances, necessary information to perform wastewater disposal from private areas, fees, cadastral update of public and private canalisations.