Water and sewage system Submit Last created Popular Relevance Names in ascending order Names in descending order Last modified Go 2 datasets found HSY’s stormwater sewerage area The data contains information on the extent of HSY’s stormwater sewerage area at property level. The stormwater sewerage area is based on Section 17 a of the Water Services Act.... WFS WMS SHP TAB Water posts in the Helsinki metropolitan area The dataset provides the locations of public water posts in the Helsinki metropolitan area. City residents can freely fetch water from the water posts (e.g. fill their water... WFS WMS SHP TAB