 In Arlington, Texas, it's Richard. What can I do for you, sir? Good morning. I've got a large lot, and I need to bring in an electric service line, and I've got quite a few large post oaks and cedar elms, and I'm wondering if I'm not under the tree canopy, and am I safe from not damaging the tree? How far away from the tree do I need to be to put that four-foot deep trench?