you can't equip the septic system with a standard drain field. Instead, you'd locate the septic tank underground, then create a mini-hill (called a "mound") out of gravel, sand and a surface ...

A mound system is similar to a conventional septic setup, except the tanks and field bed are buried in soil trucked in and heaped into a “mound.” This type of septic system is necessary when ...

The Minnesota Pollution Control Agency is offering advice for rural residents concerned about the potential impact of flooding on their septic systems and homes.