Is backfilling of the system permitted prior to final inspection if inspection ports are placed in lateral trenches?

Backfilling a septic system before a final inspection is generally not permitted, even if inspection ports are placed in lateral trenches. The primary reason for this is to ensure that the entire system is thoroughly assessed by a professional before any soil or material is placed back over it. Final inspections are crucial for verifying that the installation meets all regulatory standards and local health codes, and any concealment of the system components can prevent an accurate evaluation.

While having inspection ports allows for future access to certain parts of the system, it does not negate the importance of a comprehensive final inspection of the entire system before backfilling. This ensures that any potential issues are identified and rectified, contributing to the proper functioning of the system and protecting public health and the environment.