Anybody have any experience with this issue? I live in a county where they require ABGs to have a permit. I have a 0.6 acre lot (sloped up from the house) with a 10,000sf septic reserve area. This is pretty much my entire backyard, and the general rule is no construction on the reserve area. I was turned down 2 years ago for an inground gunnite pool because of this issue. At the time, the county environmental inspector said I could potentially dig 2' down in the septic reserve area without affecting future septic fields. Unfortunately, I think this was his opinion, and not a rule. His 2' statement did get me thinking about the possibility of an ABG. I would need to dig down 2' to level the area for the pool. Any tips from people who have successfully argued such cases would be a big help.