Kemira Oyj/Kemira M&I ABSTRACT Vesa Kettunen ... - Svenskt Vatten

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Wastewater Overflow Reduction Project in Vantaa River Catchment Area
Aninka Urho, project coordinator, Helsinki Region Environmental Services
Authority
Aninka.urho@hsy.fi, Platform presentation in English
Vantaa River catchment area is located in the most densely populated area of Finland. Wastewater overflows
into the river have been a matter of great public interest of great interest recently. The current method of
leading untreated wastewater into the nearest watercourse when there is a fault or overload in the sewer
system has faced strong resistance among environmentalists.
There are 9 participating organisations in this project:
Helsinki Region Environmental Services Authority, Project coordination
Municipal utilities from Riihimäki, Hyvinkää, Nurmijärvi, Kerava, Tuusula and Järvenpää
Keski-Uusimaa Joint Municipal Board for Water Pollution Control (KUVES)
The Water Protection Association of the River Vantaa and Helsinki Region
This cooperation project is financed by Regional Development Fund of Uusimaa (national allowance) and
Water Utilities Development Fund. Project duration is 2 years (2012-2013) and total budget 170 000 €.
The aim of the project is to decrease wastewater overflows by various means:
1. The project was started by defining a Vision, a Strategy and an Action Plan for stopping
wastewater discharges into the Vantaa River. The vision is: “No untreated wastewater spills into
waters”. Significant investments and an attitude change within the utilities are demanded to reach
this challenging vision.
The Strategy and Action programme is divided into three themes: a) Reliable pumping stations, b)
adequate condition and correct sizing of wastewater networks c) I/I control management. The cost
impacts of the Action Plan will be assessed by consultant.
2. Reliable pumping stations are the key aspect when fighting against sewer overflows. In this project
the pumping specialists from the utilities defined together the best practices concerning a) pumping
station equipment and b) operation and maintenance procedures.
3. The performance of utilities can be enhanced by developing staff training, interest group
cooperation and customer guidance. Small pilot projects related to these topics are to be launched
during 2013.
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