Paris Data Center Not Too Noisy, After All (datacenterdynamics.com)
judgecorp writes: A Paris court has ruled that a suburban data center can continue to operate, reversing an earlier decision to close it down after protests from residents. The data center's owner, Interxion, cited noise impact studies form 2014 which showed the site was operating within authorized limits, and also within the levels it predicted in its planning application
If the residents are protesting and the plant is within regulation, the regulations allow too much noise. If the datacenter was "not too noisy after all" then nobody would have complained/protested.