Is it the installer's responsibility to arrange for a final inspection when additional fill soil is required?

The installer's responsibility includes ensuring that all necessary components of the septic system are properly completed, including arranging for a final inspection when additional fill soil is required. This is crucial because proper grading and fill are essential for the effective functioning of the septic system and to prevent issues such as system failure or environmental contamination.

By coordinating the final inspection, the installer helps to ensure compliance with local regulations and standards, which typically require verification that the installation meets required specifications. This demonstrates professionalism and commitment to the integrity of the septic system installation.

Other options suggest varying degrees of responsibility but do not align with the standard practices for septic system installations, where the installer is ultimately accountable for ensuring that everything is resolved before project completion.