Emptying of drainless pits and small sewage treatment plants, as well as the transport of waste water to the sewage treatment plant, sewage and waste disposal, cleaning and environmental protection services
Framework agreement for sewage pits on the left bank of the RhineEmptying the drainless pits and small sewage treatment plants in the city area on the left bank of the Rhine, as well as the transport of waste water to the sewage treatment plant
Framework agreement for sewage pits on the right bank of the RhineEmptying the drainless pits and small sewage treatment plants in the city area on the right bank of the Rhine, as well as the transport of waste water to the sewage treatment plant