I have a new house with a septic system. The county made me put the system directly behind my house because of soil tests. I have three 100 foot fields that do not have pipes but baffles that sit ontop of rock and soil. The baffles were then buried. I have a tank of course with a pipe that runs to the baffles. My question is, how close can I plant trees to the fields, tank and pipe? I know to keep roots from the pipe but what about the fields? I cannot find any info on what affect the roots will have on the baffles. I dont think it would be a problem because most of what I read says that roots can clog the pipes, but I dont have pipes in my field, I have baffles. Hopefully someone can help me out with this. Also, what trees would be best?