Who investigates complaints about malfunctioning systems?

• A. The homeowner
• B. The inspector
• C. The local health department
• D. The plumber

Answer: (B)

When a complaint about a malfunctioning on-site sewage system comes in, the investigator is the inspector. This professional is trained to evaluate system performance, examine components such as tanks, pumps, and drainfields, and determine if the system is failing and what corrective actions are required. The inspector documents findings, checks for code compliance, and can order repairs or permit the necessary work. The local health department may get involved if there’s a public health risk or enforcement needed, but the formal investigation and assessment are carried out by the inspector. A homeowner can report the issue and a plumber can diagnose and repair problems, but they are not the official investigator responsible for evaluating compliance and directing corrective action.