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If more than 12 inches of cover is to be placed over a septic tank, what will be required?

  1. Riser

  2. Sump pump

  3. Inspection chamber

  4. Additional riser

The correct answer is: Riser

When more than 12 inches of cover is added over a septic tank, a riser is required to provide easy access for maintenance and inspections. The riser extends from the top of the septic tank to the ground surface, allowing for direct entry into the tank without having to excavate through the added cover. This ensures that routine checks, pumping, and repairs can be performed efficiently, which is critical for the functioning and longevity of the septic system. The need for a riser highlights the importance of regulatory compliance and proper operational procedures associated with septic systems in residential settings.