First question , where did all the foundation drains and roof , driveway water drain to , i have seen to many places where the storm drainage goes out to the side hill , add a septic field in the same area and you have a recipe for soil failure.

norm

There is not enough darkness in all the world to put out the light of even one small candle----Robert Alden .
If it wern't entertaining, I wouldn't keep coming back.------the BigSky