A new study conducted by KVVY-tutkimus oy, commissioned by the Tampere regional central purification plant, has pinpointed the reason for the weak ice conditions observed in the eastern section of Pyhäjärvi. This study was prompted by public speculation regarding the influence of a wastewater discharge pipe, which has been in operation since last fall, on local ice safety. The Pirkanmaa Rescue Service had raised concerns that the discharge pipe could alter water currents and thereby weaken the ice, especially in light of several accidents involving individuals falling through the ice in the vicinity of the pipe.

Statistics from the Pirkanmaa Rescue Service indicate that there have been six incidents this year, resulting in the falls of nine individuals into the ice, many of which occurred near the location of the discharge pipe. Additionally, there were reports of other falls that did not result in emergency response, raising further concern for public safety on the ice. In total, only two incidents relating to ice safety were recorded for the entirety of the previous year, highlighting a notable increase in risks associated with the current season.

The research involved 13 drilling points, with only one site showing slight indications of the presence of treated wastewater. This suggests that while the discharge could play a minor role, it is not the main contributing factor to the deteriorating ice conditions. The study urges continuous monitoring and public awareness to ensure safety during the winter months as ice conditions remain particularly fragile, necessitating caution in outdoor activities on and around the lake.