How 116 trees on top of a water cellar could grow into the largest drinking water crisis in years

Six months ago, the Utrecht region was hit by the largest drinking water crisis in the Netherlands in years, due to an intestinal bacteria in a drinking water cellar. Water company Vitens and the municipality of Utrecht have known for six years that it is necessary to remove the 116 trees on top of that cellar, according to research by the AD. How could it go so wrong?

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