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2/13/2018 10:50 AM

Management of storm water with cost-effective hybrid solutions

Lahti forerunner in treating storm water in cities. The city service consortium’s project for the management of storm water with cost-effective hybrid solutions will significantly reduce the storm water load to Lake Vesijärvi and is one of the Government Programme’s key projects.
Stormwater elements

At present, storm waters from the city centre add a considerable load to the Enonselkä basin, both in terms of nutrients and harmful heavy metals.

Treatment of urban storm water will be improved through the project in the Ranta-Kartano area using distributed systems, such as swales and green roofs as well as infiltration and detention basins. In addition, some of the storm water will be transferred for treatment in a storm water treatment system to be built in the Western Hennala area. The system will utilise new natural treatment solutions, such as biofiltration.

Project development environment for storm water management

The project will utilise the storm water know-how of local actors and will function as a product development environment in storm water management and nutrient recycling solutions. The operation of new structures for managing storm water will also be investigated during the project and practical storm water planning will be supported in the future, too.

Government Programme's key project

The project has been selected as one of the Government Programme's key projects to promote the implementation of management of water resources and the marine environment, and the Ministry of the Environment granted a government subsidy of 300,000 euros for this.

The project is being implemented between 2016 and 2018 in cooperation with the Päijät-Häme's Lake Vesijärvi Foundation and the University of Helsinki's Department of Environmental Sciences.

Further information:

Water Protection Planner Juhani Järveläinen, tel. +358 (0)50 559 4083
Water Protection Manager Ismo Malin, tel. +358 (0)50 525 9579