How is a "component" defined in the context of an on-site wastewater system?

In the context of an on-site wastewater system, a "component" refers to a part of the system that is readily accessible and observable. This definition is significant because it underscores the importance of visibility and ease of access for proper inspection, maintenance, and functioning of the wastewater system. Components must be evaluated during assessments to ensure that they are not only intact but also performing their intended roles in the treatment and disposal of wastewater.

Accessibility allows inspectors to easily verify the condition of these parts, which is vital for identifying issues that could affect overall system performance and functionality. Components might include things like inspection ports, treatment tanks, and drain fields that can be seen and measured without significant effort or disruption.

Other options describe parts of the system in ways that may not align with the requirements for proper inspection or maintenance, such as non-observable or hidden components, which complicate the ability to monitor system health effectively. Thus, the focus on readily accessible and observable parts reinforces the need for transparency and straightforward assessment practices in the management of on-site wastewater systems.