We pulled a copy of our septic system from building records in Lebanon- it is a very rough hand drawn picture and we are having a hard time agreeing that is truly where our field lines are. It shows it going all the way across the back of our property horizontal with the house which would make it impossible for us to do some additions we are wanting to do. So my question is have any of you ever had to relocate your septic lines or determine where they truly are? What company did you use?