What types of facilities does a pretreatment facility inspector inspect?

A pretreatment facility inspector primarily focuses on inspecting industrial manufacturing facilities and pretreatment facilities because these sites often discharge wastewater into public sewer systems. Their role is crucial in ensuring compliance with regulations that protect water quality by monitoring the substances being released. Manufacturing sites may use chemicals or processes that can lead to hazardous discharges, making it essential for inspectors to verify that adequate pretreatment processes are in place to prevent contamination and protect both the environment and public health.

The other options do not align with the responsibilities of a pretreatment facility inspector. Residential and public facilities typically do not involve the complex wastewater management systems that industrial facilities have, nor do they deal as directly with the regulatory frameworks specific to wastewater treatment and industrial discharges. Therefore, the focus on industrial manufacturing and pretreatment facilities is what defines the scope of an inspector's work in this context.