They don't. I have tried there. They said that people used to put them in w/o filing the paperwork they were supposed to. I even had the guy from the county out here looking for it and he couldn't find it either. I think he really expected to be able to locate it fairly easily.Big Daddy said:The county records department should have the location on file with your building plans. Septic systems are highly regulated and have to be engineered for the expected use from your house., So they should hae a copy of the septic layout.