Noise

The noise limit for mines and quarries is about the volume of a normal conversation one metre away.

Mines and quarries are regulated to ensure they are limited to reasonable sound levels for neighbours. Noise is limited to 55 dBA (A-weighted decibels) at night, 60 dBA in the evening and 65 dBA during the day.

To put that in perspective, 60 decibels is about the volume of a normal conversation one metre away. The volume of a library whisper is 30 decibels – about half the noise limit of mines and quarries.

Companies place monitoring stations at their property boundaries to measure sound levels and ensure that noise is not an issue for other property owners.

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