Which of the following distances must be described when locating a pump tank?

When locating a pump tank, the distance from finished grade to the top of the tank is important to describe because it provides critical information about how accessible the tank will be for maintenance and operations. Understanding this measurement ensures that the tank is not only effectively situated below the ground surface but also that it is positioned at a proper depth to perform its function without obstruction from surface elements such as landscaping or structures.

This detail is essential for maintenance personnel who will need to access the tank for inspections or when repairs are required. Additionally, knowing this distance helps ensure compliance with local regulations regarding the depth of septic systems and can inform decisions about grading and site drainage.

While distances from a septic tank, property line, and water line are relevant for other aspects of septic system installation and compliance, in this context, the height from finished grade to the top of the tank is the most directly relevant measurement when specifically discussing the pump tank's location.