Water services and stormwater

Water services refer to the supply of domestic water through water pipes and the reception of wastewater through wastewater sewers. Stormwater refers to rainwater and meltwater. In a built urban environment, not all stormwater can be absorbed into the soil; instead, excess water must be conducted into stormwater sewers in the same way as wastewater is conducted into wastewater sewers. Water services and stormwater systems are built in new local detailed plan areas in connection with the construction of streets and public areas. In areas without a local detailed plan, water services are supplemented in accordance with the water services development plan. Vesihuolto ja hulevesijärjestelmät rakennetaan uusille asemakaava-alueille katujen ja yleisten alueiden rakentamisen yhteydessä ja asemakaavoittamattomien alueiden vesihuoltoa täydennetään vesihuollon kehittämissuunnitelman mukaisesti.

In the Espoo area, water services are provided by the Helsinki Region Environmental Services Authority (HSY). In addition, there are four other water utilities, cooperatives, companies or associations operating in Espoo: Suvisaariston vesiosuuskunta, Rinnekoti-säätiö, Kartanon Vesi and Näsiniementien vesiosuuskunta.

Espoo decides annually on the water supply service area, i.e. the area in which water services are provided. Properties located in the water supply service area must be connected to water and sewer networks unless they have been exempted for special reasons.

The capital region municipalities and HSY jointly draw up a water services development plan every four years. The plan steers the planning of HSY’s capacity and defines the expansion of the water services network to areas outside the local detailed plan areas.

Downloadable files

The City of Espoo has agreed with HSY that HSY arranges stormwater sewerage in the areas specified in the decision on the stormwater sewerage area. According to the Water Services Act, a property located in the stormwater sewerage area must be connected to the stormwater sewer unless it has been exempted for special reasons.

More information about stormwater (in Finnish).

Downloadable files

Download file: Espoon huleveden viemäröintialue 2020, ei saavutettava.File is only available in Finnish

The whole Espoo

Water services and stormwater

Water services

Exemptions from joining the water utility's water supply or sewerage network

Municipal engineering and Helsinki Region Environmental Services (HSY)

Exemption from joining the water utility's stormwater system