 Usually the public perception of a health inspector is someone who examines restaurants and ensures they maintain sanitary standards for food safety set by the regulating authority.However, public health inspectors have much broader job duties, including inspecting swimming pools, substandard housing conditions, public schools, day cares, nursing homes, and personal service establishments such as tattoo parlours.Depending on their jurisdiction, Registered Environmental Health Officers often permit and inspect wells, private water systems, and individual subsurface sewage disposal (septic) systems.