Type 4 systems: true or false — inspections occur twice per year and reporting occurs annually.

• A. True
• B. False
• C. Not specified
• D. Weekly

Answer: (A)

The question targets how Type 4 systems are monitored. Type 4 systems require ongoing oversight due to their complexity or higher risk, so regulations set two inspections per year to verify operation, maintenance needs, and performance of critical components (pumps, alarms, effluent handling). In addition, annual reporting is required to document the system’s condition and any issues observed for regulatory records. This combination ensures both hands-on checks and formal documentation, helping catch problems early and keep regulators informed. Weekly frequency would be unnecessarily frequent, and options like not specified don’t reflect the mandated schedule.