cut roots

Hi All, I have an Eastern White Pine, approximately 60' tall and about 14" diameter trunk at 4 1/2' off the ground the ground. The root I'd like to cut is about 4" diameter and 9' from the base of the trunk. Tree is straight and healthy, although it sits on maybe a 30 degree incline hill. I'm...

My utility company cut the roots within 3 feet of a very large pine tree to install a sewer line. The tree is now leaning. The ground is lifting on the side they cut the roots and depressed on the other side. I was told by the utility company that a pine tree has a tap root and cutting the...