Which of the following is an example of a disposal component that can be installed by an installer I?

A pumped drain field is a valid disposal component that can be installed by an installer I under the TCEQ regulations. This system involves using a pump to move effluent from a septic tank or treatment unit to the drain field, allowing for effective disposal of treated wastewater by utilizing gravity or pressure.

While advanced oxidation units and sand filter systems often require a higher level of expertise and are typically designated for trained professionals with specialized knowledge, the pumped drain field represents a more commonly implemented solution that falls within the scope of installer I capabilities.

Stormwater management devices, on the other hand, are focused on the management of rainwater runoff and are not classified as on-site sewage disposal components. Therefore, the pumped drain field is the correct answer as it aligns with the roles and skills outlined for an installer I within the context of on-site sewage facility operations.