The quarry has to have a licence to operate and in that licence and approval it would state where they will get their water from.
Here is the link about water management.
It is the department of Primary Industry and the act is the Water Management Act.
They have to have a license to do what they are doing. I am not sure what the RMS has to do with this it is not their department.
It is the Department of Primary Industry that licences this type of activity and I would suggest you contact them.
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