Laduvikens Waterparc

At Laduviken, 5 million Swedish kronor is invested in a water park, which will reduce the amount of pollutants entering the lake through storm water. The aim is, among other things, to reduce phosphorus by 25%.

Storm water is precipitation, absorbing pollutants from the air. The level of pollution increases when the water runs along roads and roofs, Just over half of the storm water in Stockholm is led into lakes and streams without purification. One such case is Laduviken, located on Northern Djurgården which is part of the National City Park. Storm water from the nearby road Norrtäljevägen and parts of Frescati pour through a congested sedimentation basin, which also receives large quantities of leaking groundwater from the underground transport system. Stockholm Water invest about 5 million kronor in a water park at Laduviken, which will reduce the input of pollutants into the lake, and above all reduce the high content of phosphorus by about 25%, from 27 kg/ year to 20 kg/ year. Before the treated storm water is discharged into Laduviken, it will run through an open storm water string. This will serve as an additional purification step and at the same time enhance the beauty and recreational value of the area. Additionally, a new sedimentation basin will be built to relieve the old one.