When describing the septic tank, which detail is NOT required?

The presence of soil moisture is not a required detail when describing the septic tank. While soil moisture can be an important indicator of the system's overall performance or possible issues affecting drainage and absorption into the soil, it does not directly pertain to the physical condition or structural features of the septic tank itself.

Key details typically required in a septic inspection include the condition of the tank baffle wall, which is essential for understanding the tank’s functionality and structural integrity, as well as the distance from the finished grade to the tank and any evidence of leakage, both of which provide critical insights into the workings of the septic system. These factors can directly influence the system's efficiency, compliance with regulations, and potential environmental impacts, making them essential for a thorough evaluation.

In contrast, while soil moisture may be relevant in broader discussions of site conditions, it is not a specific requirement for the description of the septic tank itself during an inspection.