The Norwegian Food Safety Authority has raised alarms regarding the planned development near Gjersjøen, a key drinking water source for the Nordre Follo region. They highlight concerns that construction activities, particularly excavation and groundworks, could cause hazardous chemicals to leach into the water, posing significant risks to public health and the environment. This situation has become a focal point for local residents and environmental advocates, who worry about the long-term safety of their drinking water.

The report underscores that increased pollution due to these construction activities could necessitate the installation of new, costly water treatment facilities to ensure the safety of the drinking water. This scenario outlines a precarious balance between developmental progress and environmental sustainability. As the demand for safe drinking water grows increasingly crucial, any threat to this resource could have far-reaching implications for the local community.

Moreover, the County Governor of Viken supports the Food Safety Authority's position, urging the municipality to revise its land-use plans to effectively mitigate these risks. The recommendation suggests a proactive approach in urban planning to safeguard public health and environmental integrity, reflecting a broader concern that must be addressed in local governance.