Which aspect is NOT a part of the WAC requirements for holding tank inspections?

The primary focus of the WAC (Washington Administrative Code) requirements for holding tank inspections revolves around ensuring the integrity and functionality of the septic system. The factors that are considered critical include the water-tightness of the tank, which ensures that no contaminants can escape into the surrounding environment, and the leak-proof nature of access points, which helps in maintaining the overall safety of the system. Additionally, methods to secure access points are essential to prevent unauthorized access and potential misuse.

While convenience for the property owner may be a consideration in some contexts, it does not fall under the mandated technical and safety standards that guide inspections of holding tanks. The aim of the WAC requirements is primarily concerned with environmental protection and system reliability, rather than the convenience of the property owner, highlighting the importance of safety and compliance over user convenience. Thus, while convenience might enhance the owner's experience, it is not a regulatory requirement in the context of holding tank inspections.