Kubota KX080-3 Digging drainage ditch with excavator mounted Topcon Rreceiver

Farmers rye grass field has a clay gravel access road dividing the field. The road is acting as a dam and flooding some of his ryegrass field. I installed a culvert and dug a drainage ditch to drain water into existing pond. This is the first job I used my Topcon LS B110 receiver mounted to stick of excavator. It worked well.