I agree with rstofer; the high signal level with attenuation at the input means that common mode noise (ground noise) is attenuated as well. Note that you may need a low value series resistor at the source to allow the operational amplifier to drive the line without a local oscillation.
But if ground noise is a problem, then there are two simple and cheap ways to solve it:
1. Use two wires with one being the signal ground, actually common, from the source and then use an instrumentation amplifier at the receiver. Usually a simple 4 resistor difference amplifier provides sufficient noise rejection.
2. Send the signal as a current instead. Make the transmitter operational amplifier into a current source, sink, or pump, and provide a resistive load to ground (common) at the destination followed by a buffer.
I have used both methods very successfully when transferring audio signals even between separate chassis.