Who is considered an installer in the context of sewage systems?

In the context of sewage systems, an installer is specifically defined as a person who installs on-site sewage systems that have received approval from the local health office. This role is crucial because the installer must ensure that the system functions correctly and complies with local regulations and health standards. This involves not only physically placing and connecting the components of the sewage system but also understanding the technical requirements and guidelines set forth by health authorities.

The job of an installer goes beyond mere installation; it also includes ensuring that the system is suitable for the specific site conditions and that it promotes the safe management of wastewater, thereby protecting public health and the environment. This position typically requires training and often certification to guarantee that the installer is knowledgeable about best practices, safety protocols, and environmental regulations.

The other options describe roles that are important to the overall wastewater management system, but they do not align with the specific definition of an installer. Monitoring air quality, designing treatment plants, and overseeing public health are all critical functions, but they address different aspects of public health and environmental management rather than the hands-on installation of sewage systems.