How deep should one of the soil borings extend beneath the surface?

The correct depth for soil borings in the context of private sewage contractor practices is typically set at 60 inches below the surface. This depth is significant because it helps to assess the soil characteristics that are pertinent for the design and installation of septic systems.

When conducting soil borings, reaching this depth allows the contractor to evaluate the soil profile adequately, including the type of soil present, moisture levels, and the presence of groundwater. This information is crucial to determine the suitable type, size, and configuration of a septic system, ensuring it functions effectively without causing environmental issues.

While other depths might seem feasible for specific situations or local codes, the standard at 60 inches provides a comprehensive view of the soil conditions that impact sewage disposal systems. Therefore, aligning with this depth enhances the reliability of the findings, ensuring that any installation or remediation work is based on a sound understanding of the subsurface conditions.