What is the minimum soil coverage required over a leach field?

The minimum soil coverage required over a leach field is six inches. This amount of soil coverage is crucial for several reasons. Firstly, it helps protect the leach field from physical damage which might occur due to surface activities or weather conditions. Additionally, appropriate soil coverage aids in regulating temperature and promoting proper microbial activity essential for the treatment of wastewater. This depth ensures that the effluent has adequate contact with the soil, allowing for proper filtration and absorption, thus safeguarding groundwater quality. Maintaining at least six inches of soil over a leach field is vital for the system’s effectiveness and longevity.