Czechia – Treatment services of septic tanks – Cleaning rain settling tanks and retention tanks

The subject of public contracts awarded in the established DNS will be the complete cleaning of rain settling tanks (DUN) and retention tanks (RN) from settled sludge and other sediments that have accumulated in these objects during their operation. These reservoirs are primarily used to protect individual recipients from the inflow of rainwater from the surfaces of highway roads and are used to capture them. Rain settling tanks can also fulfill the function of a retention system in the case of runoff and leaks of operational or other (oil) substances.